Technical field
[0001]
　The present invention relates to a manufacturing method and a tooth part of the tooth profile part.
　This application, 2015 filed in Japan on January 21, Japanese Patent Application No. 2015-9637, Japanese Patent Application No. 2015-9710, and Japanese Patent Application No. 2015-9711 and Japanese Patent Application No. 2015-9719, November 2015 18 filed in Japan on the day, claiming priority on the 2015-226009 Patent and Japanese Patent application No. 2015-225947 No., incorporated their contents here.
Background technique
[0002]
Conventionally, there is known a method of producing a metal tooth parts by press molding. For example, Patent Document 1 discloses a method for producing integrally the drive plate and the ring gear which is a component of the automatic transmission for a vehicle as one tooth profile parts. The method by draw forming a sheet metal material (workpiece), obtaining a cylindrical container having a bottom, in a state where the inner circumferential surface was restrained in the side wall of the cylindrical container, the side wall portion by forging molding while thickening, and a step of forming a tooth profile on the side wall portion.
[0003]
　As shown in FIG. 1D, the tooth profile part 11 comprises a bottom portion 11a, a side wall portion 11b erected from the outer edge of the bottom portion 11a. In the conventional method of manufacturing a tooth profile parts, formed by the boundary between the inner peripheral surface of the upper surface and the side wall portion 11b of the bottom portion 11a, a part of the inner peripheral surface of the side wall portion 11b overlaps the upper surface of the bottom portion 11a is the flaw 11e (hereinafter, referred to as overlapping defects) may occur.
　The following describes the mechanism of the overlapping flaws 11e. In the following, for convenience of description, also uses the same reference numerals 11 in a cylindrical container obtained by the production process of the tooth part 11. As shown in FIG. 1A, a cylindrical container 11 obtained by draw forming a workpiece placed on a die 14, a cylindrical container 11 with the flat portion 14a of the flat portion 12a and the die 14 of the restraint punch 12 restraining the bottom portion 11a. In this state, the opening end 11d of the cylindrical container 11 by pushing it in the plane portion 13a of the forging punch 13 performs shaping of the teeth. As shown in FIG. 1A, the plate thickness of the corner portion 11c of the cylindrical container 11 before forging molding, thinner than the thickness of the bottom portion 11a and the side wall portion 11b. As shown in FIG. 1B, forging molding is started, that is, the downward movement of the forging punch 13 is started, by the side wall portion 11b is crushed down, the side wall portion 11b is thickened. Therefore, in the course of forging forming, cause material flowing in the direction of the arrow in FIG at the corner 11c, as a result, a gap 15 is formed between the inner surface of the corner portion 11c and the shoulder R portion 12b of the restraining punch 12 . Thereafter, further a pushing an open end 11d of the cylindrical container 11 in forging punch 13, as shown in FIG. 1C, and flows into the gap 15 swells part of the inner peripheral surface of the side wall portion 11b. As a result, as shown in FIG. 1D, after the completion of forging molding, a part of the inner peripheral surface of the side wall portion 11b overlaps the upper surface of the bottom portion 11a, the inner circumferential surface of the upper surface and the side wall portion 11b of the bottom portion 11a and scratch 11e overlap the boundary between is formed.
CITATION
Patent Literature
[0004]
Patent Document 1: Japanese Patent Publication No. 2,885,266
Summary of the Invention
Problems that the Invention is to Solve
[0005]
　In recent years, as a method of manufacturing a mechanical part high dimensional accuracy and strength as the tooth profile parts for automatic transmission is required, cold forging has been attracting attention. Cold forging, as compared to hot forging, has the advantage of resulting high-precision and high-strength machine parts, such as further manufacturing cost is low, and high yield.
　However, flaw overlap occurs in the process of manufacturing the tooth profile part as described above, since the causes of yield reduction, it is impossible to obtain a sufficient advantage of high yield, which should originally obtained by employing a cold forging.
　Therefore, even when the cold forging is employed as the production method of the tooth parts where high dimensional accuracy and strength is required (i.e. high tooth profile parts quality is required), that flaw overlap in the production process occurs capable of improving the yield of the tooth profile part by suppression techniques has been required.

　The present invention has been made in view of the above circumstances, and an object thereof is to provide a manufacturing method and a high-quality tooth parts of teeth parts capable of improving the yield of the tooth parts.
Means for Solving the Problems
[0006]
　The present invention adopts the following means in order to achieve the object according to the above-mentioned problems are eliminated.
(1) A method of manufacturing a tooth profile component according to an embodiment of the present invention, by forming narrow the workpiece, a drawing step of obtaining a cylindrical container having a bottom portion and side portions; of the side surface portion of the cylindrical container among them, by reducing the diameter of the specific portion of the tooth tip portion is formed, reduced diameter step and which thickened corner portions between said bottom portion and the side portion; a reduced diameter in said reduced diameter step by forming the addendum portion to said specific portion of said cylindrical container, the bottom portion, and a tooth forming step to obtain a tooth profile parts having the side portions and the tooth tip portion; having. The higher the shrinkage径工, when viewed the cylindrical container section including the center axis direction and the radial direction of the cylindrical container, the straight line L1 in contact parallel to the bottom portion of the cylindrical container, the cylindrical container the intersection of the straight line L2 in contact parallel to the side surface portion is defined as P0, the line L1 is the point begins to leave from the bottom of the cylindrical container P1, the side portions of the straight line L2 is the cylindrical container a point to begin withdrawal from is defined as P2, further the length between the point P1 and the intersection point P0 on the straight line L1 [Delta] R, between the intersection point P0 and the point P2 on the straight line L2 when defined as [Delta] H in length, the outer shape of the corner portion of the cylindrical container, wherein a cylindrical container of plate thickness t, the length ΔR and the following conditional expression represented by using the [Delta] H (1) thereby thickening the corner so as to satisfy.
(ΔR + ΔH) ≦ 2t ... (1)
[0007]
(2) A method of manufacturing a tooth profile component according to the above (1), the diameter step of expanding the diameter of the specific part of the cylindrical container obtained by the drawing process, and the drawing step and the reduced diameter step it may further have between.
[0008]
(3) In the method for manufacturing a tooth profile component according to the above (1) or (2), said tooth forming step, to form a crude teeth to said specific portion of the cylindrical container a reduced diameter in said reduced diameter step a coarse tooth forming step; may have; the and finished tooth forming step of forming a finished tooth profile to the specific site as the tooth tip portion by processing the coarse teeth.
[0009]
(4) In the above (1) to (3) A method of manufacturing a tooth profile component according to any one, the workpiece is provided so as to appear alternately along the circumferential direction around the timber axis mountain portion and a flat plate having a trough portion, said crest portion, said member axis from the valley may be a portion that protrudes toward the outer side in the radial direction to the center.
[0010]
(5) above (1) to (3) In the method for manufacturing the tooth profile component according to any one, the workpiece may be a flat circular flat plate or polygonal.
[0011]
The method of manufacturing a tooth profile component according to (6) above (1), wherein the workpiece has a crest and a trough provided as appear alternately along a circumferential direction around the timber axis a flat plate, the crest portion is located at a site that protrudes toward from the valley to the outer side in the radial direction to the center of the member axis; in the drawing process is in the side portion of the cylindrical container, wherein to include the peaks and the valleys, the material to be processed drawing is; in about the reduced 径工, the identifying the peak portion included in said side surface portion of the cylindrical vessel obtained by the drawing process it may be reduced in diameter as the site.
[0012]
In the method of manufacturing a tooth profile component according to (7) above (6), in the drawing step, the central axis is arranged coaxially, and a punch, with the die; the punch is perpendicular to the central axis a punch planar portion parallel to the radial direction, continuously through the punch flat portion and the punch curved portion, and a punch side portions extending in a first direction parallel to said central axis, said punch side portion, the mountain muscle and valleys extending in the first direction is formed; the die, and the central axis orthogonal die planar portion parallel to the radial direction, said first direction in succession to the die planar portion the valleys of the ridges is the die of the workpiece; and a die side surface portion extending, wherein the die side surface portions, the mountain muscle and valleys extending in the first direction is formed wherein the workpiece to be positioned placed on the die; then, the pan The by relatively moving in the direction of the die may be obtained the cylindrical container in which the side portions are upright with respect to the bottom portion.
[0013]
In the method of manufacturing a tooth profile component according to (8) above (6) or (7), in the reduced diameter step, the central axis is arranged coaxially, a punch, and the counter punch, the outer circumference of the counter punch using a die which is disposed; said punch, and the punch flat portion parallel to the radial direction perpendicular to the central axis, said punch flat portion and the punch curved portion first parallel and contiguous to the central axis through the extending in a direction, and radius and an inner radius equal to the punch side portion of the tooth tip portion of the tooth part; the counter punch, and the central axis parallel to a radial direction perpendicular to a counter punch planar portion the continuously to counter punch flat portion extending in the first direction and the opposite direction, and radius and an outer radius equal to the counter punch side portion of the tooth tip portion of the tooth part; said die, extending in the first direction And radius continuously through an outer radius equal to the die side surface portion of the tooth tip portion of the tooth part, the die side part and the die curved portion, perpendicular to the central axis in accordance with the process proceeds to the first direction and a die inclined portion expanding in a direction; the bottom portion of the cylindrical container obtained by the drawing process in a state sandwiched between the punch and the counter punch, said punch and said counter punch by relatively moving in the direction of the die, the peak portion included in said side surface portion of the cylindrical container may be reduced in diameter as the specific site.
[0014]
(9) In the above (6) to (8) a method of manufacturing a tooth profile component according to any one of, in the tooth forming step, the central axis is arranged coaxially, and an inner punch in said punch an outer punch that is disposed on the outer periphery, and the counter punch, the use of a die which is disposed on the outer periphery of the counter punch; said punch, and the inner punch flat portion parallel to the radial direction perpendicular to the central axis, wherein continuously through the inner punch flat portion and the inner punch curved portion and a inner punch side portion extending in a first direction parallel to said central axis, in said punch side portions, among which extends in the first direction punch mountain muscle and inner punch the valley is formed; the die, and the die side surface portion extending in a first direction, and continuously through the die side part and the die curved portion, with the progress in the first direction da which widens in a direction orthogonal to the central axis And an inclined portion, wherein the die side surface portion, the die valleys and die mountain muscle extending in the first direction is formed; the outer punch out parallel to the radial direction perpendicular to the central axis a punch plane portion, and the outer punch first side surface portion in which the outside of the punch flat portion continuously along the inner punch side portions extending in the first direction, the die side surface portion continuous to the outer punch planar portion along and an outer punch second side portions extending in the first direction; the counter punch and the counter punch side portions extending in the first direction along the die side part, continuous with the counter punch side portions and a said central axis parallel to the counter punch planar portion in a radial direction orthogonal; such that the crests of the cylindrical container a reduced diameter in said reduced diameter step is positioned in the die valleys, said path of said bottom portion of said cylindrical container A state sandwiched between the horizontal plane portion and the counter punch flat portion, is brought into contact with the outer punch planar portion to an open end of said cylindrical container; then said punch, said outer punch and the counter punch the in the direction of the die are relatively moved; after the outer punch flat portion has passed the die curved portion, said punch, while fixing the counter punch and the die, relative to the outer punch in the direction of the counter punch by moved, it may form the addendum portion to the crest of the cylindrical container.
[0015]

(10) (6) In the method for manufacturing the tooth profile component according to any one of - (8), said tooth forming step, the crest of the cylindrical container a reduced diameter in said reduced diameter step crude tooth forming step of forming a rough tooth and; may have; the and finished tooth forming step of forming a finished tooth profile on the ridges as the tooth tip portion by processing the coarse teeth.
[0016]
In the method of manufacturing a tooth profile component according to (11) above (10), in the rough tooth forming step, the central axis is arranged coaxially, a coarse tooth forming the punch, the outer periphery of the rough tooth forming the punch orthogonal the rough tooth shaped in punch, and the central axis; and rough tooth shaped outer punch being arranged, a rough tooth shaped counter punch, the rough teeth and coarse tooth forming die used, which is disposed on the outer periphery of the molded counter punch parallel crude tooth forming the punch plane portion in a radial direction and, the rough tooth shaped in crude tooth punch planar portion and continuously through a coarse tooth forming the punch curved portion extending in a first direction parallel to the central axis and a molding in the punch side surface portion, wherein the coarse tooth forming the punch side portion, rough tooth shaped in punch mountain muscle extending in the first direction and the coarse tooth forming the punch the valley is formed; the crude tooth forming die, before Coarse tooth forming die side portions extending in a first direction, the rough tooth forming die side part and through a coarse tooth forming die curved surfaces continuously diverging in a direction orthogonal to the central axis in accordance with the process proceeds to the first direction and a coarse tooth forming die inclined portion that, the rough tooth forming die side part, crude tooth forming die valleys and rough tooth forming die mountain muscle extending in the first direction is formed; the rough tooth molded outer punch, and the central axis parallel to rough tooth shaped outer punch plane portion in a radial direction orthogonal, wherein along said rough tooth shaped in the punch side portion continuous to the rough tooth shaped outer punch flat portion first coarse tooth shaped outer punch first side surface portion extending in one direction, the rough tooth shaped outer punch the the flat surface portion continuously rough tooth forming die along the side surface portion extending in the first direction coarse tooth shaped outer punch second and a side portion; the coarse tooth shaped counter Panchi is parallel the coarse tooth shaped counter punch side portion along the rough tooth forming die side portions extending in the first direction, in a radial direction perpendicular to the succession to rough tooth forming the counter punch side portion and the central axis and a a crude tooth shaped counter punch flat portion; such that the crests of the cylindrical container a reduced diameter in said reduced diameter step is positioned at the rough tooth forming die valleys, the bottom surface of the cylindrical container the parts in a state sandwiched between the rough tooth shaped in a punch plane portion and the rough tooth shaped counter punch flat portion, is brought into contact with the crude tooth shaped outer punch planar portion to an open end of said cylindrical container; then, the crude tooth shaped in a punch, said by relatively moving the coarse tooth shaped outer punch and the rough tooth shaped counter punch direction of the rough tooth forming die, the crude tooth to the mountain portion of the cylindrical container It may be formed.
[0017]
The tooth profile part of the production method according to (12) above (11), in the finished tooth profile forming step, the central axis is arranged coaxially, and the finished tooth profile forming the punch, the outer periphery of the finished tooth profile forming the punch and finished tooth shaped outer punch being arranged, with the finished tooth profile forming die; the finished tooth profile forming the punch, said central axis in parallel completed tooth profile formed in the radial direction orthogonal to the punching flat portion, the finished tooth profile molding and a finished tooth profile forming the punch side portion continuously through the inner punch flat portion and finished tooth profile forming the punch curved portion extending in a first direction parallel to the central axis, the finished tooth profile formed in the punch side portion the shape and dimensions of the cross section perpendicular to the central axis and is identical to the rough tooth shaped in punch side surface portion, have a finished tooth profile forming the punch mountain muscle and finished tooth profile formed in the punch valleys extending in the first direction tooth; the Adult tooth forming die, parallel to the finished tooth profile forming die planar portion in a radial direction orthogonal to the central axis, and a finished tooth forming die side section continuously in the finished tooth profile forming die planar portion extending in the first direction has the complete tooth forming die side part, the shape and dimensions of the cross section perpendicular to the central axis is identical to the rough tooth forming die side section, complete tooth forming die mountain muscle and extending in the first direction has finished tooth profile forming die valleys; the finished tooth shaped outer punch, said central axis and perpendicular finished tooth shaped outer punch planar portion parallel to the radial direction, continuously in the finished tooth shaped outer punch planar portion the finished and tooth forming the punch side portions finished tooth shaped outer punch first side surface portion extending in the first direction along the along the complete tooth forming die side part continuous with the finished tooth shaped outer punch planar portion extending in the first direction And a finished tooth shaped outer punch second side portion; the so said coarse teeth formed on the crests of the cylindrical vessel at rough tooth forming step is positioned in the finished tooth profile forming die valleys, the the bottom portion of the cylindrical container in a state sandwiched between the finished tooth profile forming die planar portion and the finished tooth profile formed in the punch plane portion, push the open end of the cylindrical vessel in the finished tooth shaped outer punch flat portion free it makes may form the finished tooth profile on the crest of the cylindrical container.
[0018]
(13) The method of producing tooth profile component according to the above (1), the diameter step of expanding the diameter of the specific part of the cylindrical container obtained by the drawing process, and the drawing step and the reduced diameter step further comprising between; the workpiece is a flat plate having a crest and a trough provided as appear alternately along a circumferential direction around the timber axis, said crest portion, said It is sites that protrudes outwardly in the radial direction to the center of the material shaft from the valleys; in the drawing process, the side surface portion of the cylindrical container, to contain the peaks and the valleys the draw forming a workpiece; in said radially enlarged step, a larger diameter of the projecting portion in which the crest is deformed contained in the side surface portion of the cylindrical container obtained by the drawing process as the specific site; wherein in about contraction 径工 is of the cylindrical containers expanded by the diameter expansion step Serial protrusions may be reduced in diameter a.
[0019]
(14) In the method for producing a tooth profile component according to the above (13), in said upset step, a first step of the central axis is arranged coaxially, using a first punch and a first die, central axes are coaxially arranged, and a second punch, a second and a second step using a die; the first punch, the first punch is parallel in a radial direction perpendicular to the central axis a plane portion, and continuously through the first punch planar portion and the first punch first curved portion, the first of expanding in a radial direction perpendicular to the central axis with the progress in a first direction parallel to the central axis and the punch inclined portion, and a first punch side portions extending in the first direction sequentially through the first punch inclined portion and the first punch second curved portion, the first punch side portion, the mountain muscle and valleys extending in the first direction is formed; the first die, the in A first die planar portion parallel to a radial direction perpendicular to the axis, and a first die side portions extending continuously in the first die planar portion in said first direction, the first die side part , form the first mountain muscle and valleys extending in the direction is formed, further wherein the first die side part, offset the plate thickness portion of said workpiece from said first punch side portion in the radial direction in disposed; the second punch, the second punch planar portion parallel to the radial direction perpendicular to the central axis, said second punch planar portion and a second said continuously through the punch curved portion first direction and a second punch side portions extending in said second punch side portions are the same as the shape and dimensions of the first punch side portion, mountain muscle and valleys extending in the first direction is formed and; said second die, the second Daitaira parallel to a radial direction perpendicular to the central axis And parts, and a second die side section continuously in the second die planar portion extending in the first direction, the second die side part, the shape and dimensions identical to the first die side part There, the is peaks muscle and the valley is formed to extend in a first direction; wherein in the first step, the throttle the cylindrical container wherein the protrusion of the first die in which the crest is deformed, which is obtained by step wherein placing the cylindrical container so as to be located in valleys on the first die; then by relatively moving the first punch in the direction of the first die, and enlarged the protrusion; in the second step, the cylindrical container so that the protruding portion is enlarged is located at the valleys of said second die placed on the second die; then the said second punch second by relatively moving in the direction of the die, the side surface portion is the bottom surface It may be obtained the cylindrical container to erect relative parts.
[0020]
In (15) above (13) or the method of manufacturing a tooth profile component according to (14), in the reduced diameter step, the central axis is arranged coaxially, a punch, and the counter punch, the outer circumference of the counter punch using a die which is disposed; said punch, said central axis orthogonal parallel punch plane portion in a radial direction, the punch planar portion and the first parallel to the central axis continuously through the punch curved portion extending in a direction, and radius and an inner radius equal to the punch side portion of the tooth tip portion of the tooth part; the counter punch, and the central axis parallel to a radial direction perpendicular to a counter punch planar portion the continuously to counter punch flat portion extending in the first direction and the opposite direction, and radius and an outer radius equal to the counter punch side portion of the tooth tip portion of the tooth part; said die, the first The central axis according extends toward, and radius continuously through an outer radius equal to the die side surface portion of the tooth tip portion and the tooth profile part, the die side part and the die curved portion, the flow proceeds to the first direction sandwiched between the cylindrical container wherein the counter punch and the punch the bottom of having the protruding portion which is expanded by the diameter expansion step; and a die inclined portion expanding in a direction perpendicular to the state, by relatively moving the punch and the counter punch toward the die, may be reduced in diameter the projections included in the side surface portion of the cylindrical container.
[0021]
In (16) above (13) to (15) The method for producing tooth profile component according to any one, in the tooth forming step, the central axis is arranged coaxially, and an inner punch in said punch an outer punch that is disposed on the outer periphery, and the counter punch, the use of a die which is disposed on the outer periphery of the counter punch; said punch, and the inner punch flat portion parallel to the radial direction perpendicular to the central axis, wherein continuously through the inner punch flat portion and the inner punch curved portion and a inner punch side portion extending in a first direction parallel to said central axis, in said punch side portions, among which extends in the first direction punch mountain muscle and inner punch the valley is formed; the die, and the die side surface portion extending in a first direction, and continuously through the die side part and the die curved portion, with the progress in the first direction in a direction perpendicular to the central axis And a die inclined portion which opens to the die side surface portion, said die valleys extending in the first direction and the die mountain muscle is formed; the outer punch in the radial direction perpendicular to the central axis and parallel outer punch flat portion, and the outer punch first side surface portion continuously to the outer punch planar portion extending in the first direction along the inner punch side surface portion, the die continuously to the outer punch planar portion along the side surface portion and an outer punch second side portions extending in the first direction; the counter punch and the counter punch side portions extending in the first direction along the die side surface portion, wherein the counter punch side parts to continuously and a parallel counter punch planar portion in a radial direction perpendicular to the central axis; such that the protrusions are reduced in diameter by the diameter step is positioned in the die valleys, the cylindrical said path to the bottom of the container A state sandwiched between the horizontal plane portion and the counter punch flat portion, is brought into contact with the outer punch planar portion to an open end of said cylindrical container; then said punch, said outer punch and the counter punch the in the direction of the die are relatively moved; after the outer punch flat portion has passed the die curved portion, said punch, while fixing the counter punch and the die, relative to the outer punch in the direction of the counter punch by moved, it may form the addendum portion to the projecting portion of the cylindrical container.
[0022]
(17) In the above (13) to (15) METHOD FOR PRODUCING tooth profile component according to any one of the tooth forming step, the projecting portion of the cylindrical container a reduced diameter in said reduced diameter step crude tooth forming step of forming a rough tooth and; may have; the and finished tooth forming step of forming a finished tooth to the protrusion as the tooth tip portion by processing the coarse teeth.
[0023]
In the method of manufacturing a tooth profile component according to (18) above (17), in the rough tooth forming step, the central axis is arranged coaxially, a coarse tooth forming the punch, the outer periphery of the rough tooth forming the punch orthogonal the rough tooth shaped in punch, and the central axis; and rough tooth shaped outer punch being arranged, a rough tooth shaped counter punch, the rough teeth and coarse tooth forming die used, which is disposed on the outer periphery of the molded counter punch parallel crude tooth forming the punch plane portion in a radial direction and, the rough tooth shaped in crude tooth punch planar portion and continuously through a coarse tooth forming the punch curved portion extending in a first direction parallel to the central axis and a molding in the punch side surface portion, wherein the coarse tooth forming the punch side portion, rough tooth shaped in punch mountain muscle extending in the first direction and the coarse tooth forming the punch the valley is formed; the crude tooth forming die, before Coarse tooth forming die side portions extending in a first direction, the rough tooth forming die side part and through a coarse tooth forming die curved surfaces continuously diverging in a direction orthogonal to the central axis in accordance with the process proceeds to the first direction and a coarse tooth forming die inclined portion that, the rough tooth forming die side part, crude tooth forming die valleys and rough tooth forming die mountain muscle extending in the first direction is formed; the rough tooth molded outer punch, and the central axis parallel to rough tooth shaped outer punch plane portion in a radial direction orthogonal, wherein along said rough tooth shaped in the punch side portion continuous to the rough tooth shaped outer punch flat portion first coarse tooth shaped outer punch first side surface portion extending in one direction, the rough tooth shaped outer punch the the flat surface portion continuously rough tooth forming die along the side surface portion extending in the first direction coarse tooth shaped outer punch second and a side portion; the coarse tooth shaped counter Panchi is parallel the coarse tooth shaped counter punch side portion along the rough tooth forming die side portions extending in the first direction, in a radial direction perpendicular to the succession to rough tooth forming the counter punch side portion and the central axis and a a crude tooth shaped counter punch flat portion; such that the protrusions are reduced in diameter by the diameter step is positioned at the rough tooth forming die valleys, the rough teeth of the bottom portion of the cylindrical container a state sandwiched between said the molding in a punch plane portion roughness tooth molding counter punch flat portion, the crude tooth shaped outer punch flat portion is in contact with the open end of the cylindrical container; then the rough tooth shaped in punch, wherein by relatively moving the coarse tooth shaped outer punch and the rough tooth shaped counter punch direction of the rough tooth forming die, the forming a coarse tooth on the protrusion of the cylindrical container It may be.
[0024]
In the method of manufacturing a tooth profile component according to (19) above (18), in the finished tooth profile forming step, the central axis is arranged coaxially, and the finished tooth profile forming the punch, the outer periphery of the finished tooth profile forming the punch and finished tooth shaped outer punch being arranged, with the finished tooth profile forming die; the finished tooth profile forming the punch, said central axis in parallel completed tooth profile formed in the radial direction orthogonal to the punching flat portion, the finished tooth profile molding and a finished tooth profile forming the punch side portion continuously through the inner punch flat portion and finished tooth profile forming the punch curved portion extending in a first direction parallel to the central axis, the finished tooth profile formed in the punch side portion the shape and dimensions of the cross section perpendicular to the central axis and is identical to the rough tooth shaped in punch side surface portion, have a finished tooth profile forming the punch mountain muscle and finished tooth profile formed in the punch valleys extending in the first direction tooth; the Adult tooth forming die, parallel to the finished tooth profile forming die planar portion in a radial direction orthogonal to the central axis, and a finished tooth forming die side section continuously in the finished tooth profile forming die planar portion extending in the first direction has the complete tooth forming die side part, the shape and dimensions of the cross section perpendicular to the central axis is identical to the rough tooth forming die side section, complete tooth forming die mountain muscle and extending in the first direction has finished tooth profile forming die valleys; the finished tooth shaped outer punch, said central axis and perpendicular finished tooth shaped outer punch planar portion parallel to the radial direction, continuously in the finished tooth shaped outer punch planar portion the finished and tooth forming the punch side portions finished tooth shaped outer punch first side surface portion extending in the first direction along the along the complete tooth forming die side part continuous with the finished tooth shaped outer punch planar portion extending in the first direction And a finished tooth shaped outer punch second side portion; the so said coarse teeth formed on the projecting portion of the cylindrical vessel at rough tooth forming step is positioned in the finished tooth profile forming die valleys, the the bottom portion of the cylindrical container in a state sandwiched between the finished tooth profile forming die planar portion and the finished tooth profile formed in the punch plane portion, push the open end of the cylindrical vessel in the finished tooth shaped outer punch flat portion free it makes may form the finished tooth profile on the protrusion of the cylindrical container.
[0025]
(20) The method of producing tooth profile component according to the above (1), the diameter step of expanding the diameter of the specific part of the cylindrical container obtained by the drawing process, and the drawing step and the reduced diameter step further comprising between; in the drawing process, by draw forming the workpiece is a circular flat plate, may be obtained the cylindrical container.
[0026]
(21) In the method for producing a tooth profile component according to the above (20), in said upset step, a first step of the central axis with a first punch and a first die disposed coaxially, the central axis There a second step using a second punch and a second die disposed coaxially; the first punch, a first punch planar portion parallel to the radial direction perpendicular to the central axis, continuously through the first punch planar portion and the first punch first curved portion, a first punch inclined portion expanding in the radial direction perpendicular to the central axis with the progress in a first direction parallel to the central axis the first has a first punch side portion punch inclined portion and continuously through a first punch second curved portion extending in the first direction, and the first punch side portion, said first mountain muscle and valleys extending in one direction is formed; the first die, said first direction A first die first side portion which extends, said first die planar portion parallel to the radial direction of the first continuously in the first side portion die perpendicular to said central axis, successively to the first die planar portion a first die second side portions extending in the first direction Te has a first die second side portion, the thickness fraction of the workpiece in the radial direction from said first punch side portion has a mountain muscle and Tanisuji offset; the second punch, said a central axis perpendicular second punch planar portion parallel to the radial direction, via the second punch planar portion and a second punch curved portion continuously a second punch side portions extending in the first direction, the second punch side section, shape and size is identical to the first punch side portion, mountain extending in the first direction muscle and the valley are formed; the second die, a second die first side portion extending in the first direction Wherein the second die second die planar portion parallel to the radial direction continuously to the first side surface portion perpendicular to the central axis, the second second die which extends continuously to the die planar portion in said first direction and a second side portion, said second die second side portions are the same as the shape and dimensions of the first die second side portion, mountain muscle and valleys extending in the first direction It is formed; in the first step, place the cylindrical container obtained by the drawing process on the first die; then by relatively moving the first punch in the direction of the first die, and expanded the specific site contained in the side portion by mountain muscle of the first punch; and in the second step, the as said specific site that is expanded is positioned at the valleys of said second die Place a cylindrical container on the second die planar portion; then, the second punch The by relatively moving in the direction of the second die may be obtained the cylindrical container in which the side portions are upright with respect to the bottom portion.
[0027]
The tooth profile part of the production method according to (22) above (20) or (21), in the reduced diameter step, and the counter punch and the punch, the punch and the central axis are arranged coaxially, the counter punch using a die which is disposed along the outer periphery, a; the punch is provided with the central axis perpendicular parallel punch plane portion in a radial direction, the central axis continuously through the punch flat portion and the punch curved portion along extending in a first direction parallel to said central axis, a radius having a comparable punch side portion and the inner radius of the addendum portion of the tooth part; the counter punch, perpendicular to the central axis a counter punch flat portion parallel to the radial direction, continuously to counter punch flat portion extending in the first direction and the reverse direction, the counter punch radius is equal to the outer radius of the addendum portion of the tooth profile part the side portion Has; the die, the first extending direction, and an outer radius equal to the die side surface portion of the tooth tip portion of the inner radius the tooth part, through the die side part and the die curved portion said bottom surface of said cylindrical container with a specified portion which is expanded by the diameter expansion step; said has a center axis and die inclined portion expanding in a direction perpendicular, the following proceeding in succession in the first direction the parts in a state sandwiched between the punch and the counter punch, by relatively moving the punch and the counter punch toward the die, condensation of the specific portion included in the side surface portion of the cylindrical container it may be the diameter.
[0028]
(23) (20) above the - (22) The method for producing tooth profile component according to any one, in the tooth forming step, an inner punch disposed central axis coaxially with each other, in said punch orthogonal said punch, said central axis; and the outer punch disposed along the outside, and the counter punch, which is opposed to said punch, said die and, using a disposed along the outer periphery of the counter punch has an inner punch flat portion parallel to the radial direction, and a punch side portion in extending in a first direction parallel to the central axis continuously through the inner punch curved portion and the inner punch plane portion which, the the inner punch side portion, the punch mountain muscle and inner punch valleys inner extending in the first direction is formed; the die is a die side surface portion extending in the first direction, the die side part and the die the continuously through the curved portion second Anda die inclined portion expanding in a direction orthogonal to the central axis with the progress in the direction, wherein the die side surface portion, the die valleys and die mountain muscle extending in the first direction is formed; the outer punch is a cylindrical shape, the outer punch first side surface portion extending in the first direction along the inner punch side surface portion, and the central axis continuously in the outer punch first side portion has a perpendicular outer punch flat portion parallel to the radial direction, the outer punch second side portions extending in the first direction along said die side surface portions of the die in succession to the outer punch planar portion, a , the outer punch planar portion has a recess portion recessed is part corresponding to the portion between adjacent of said tooth tip portion to each other; said counter punch, extending in the first direction along the die side surface portion a counter punch side portions which, in the counter-punch side portions Continue to have, parallel to the counter punch planar portion in a radial direction perpendicular to the central axis; as the specific site that was reduced in diameter by the diameter step is positioned in the die valleys, the cylindrical container said bottom portion in a state sandwiched between the counter punch flat portion and the inner punch plane portion of, is brought into contact with the outer punch planar portion to an open end of said cylindrical container; then said punch, said outer the punch and the counter punch are relatively moved in the direction of the die; after the outer punch flat portion has passed the die curved portion, said punch, while fixing the counter punch and the die, the outer punch by relatively moving in the direction of the counter punch, it may form the addendum portion to said specific portion of said cylindrical container.
[0029]
(24) In the above (20) to (22) METHOD FOR PRODUCING tooth profile component according to any one of the tooth forming process, the specific portion of the cylindrical container a reduced diameter in said reduced diameter step crude tooth forming step of forming a rough tooth and; may have; the and finished tooth forming step of forming a finished tooth profile to the specific site as the tooth tip portion by processing the coarse teeth.
[0030]
In the method of manufacturing a tooth profile component according to (25) above (24), wherein in the rough tooth forming step, a rough tooth forming the punch are arranged central axis coaxially with each other, the outer periphery of the rough tooth forming the punch coarse tooth shaped outer punch disposed along a rough tooth shaped counter punch, which is opposed to the rough tooth forming the punch, and the crude tooth forming die arranged along the circumference of the rough tooth forming the counter punch, used; the coarse tooth shaped in punch, and the central axis in parallel rough tooth shaped in the radial direction orthogonal to the punching flat portion, via the rough tooth shaped in a punch plane portion and the coarse tooth forming the punch curved portion a continuous and rough tooth forming the punch side surface portion extending in a first direction parallel to the central axis, and wherein the coarse tooth forming the punch side portion, rough tooth shaped in punch mountain extending in the first direction muscle and Soha formation Inner punch the valley is formed; the rough tooth forming die, successively through a coarse tooth forming die side portions extending in the first direction, said coarse tooth forming die side portion and the coarse tooth forming die curved portion wherein a central axis perpendicular coarse tooth forming die ramps diverging in the direction of, the, wherein the coarse tooth forming die side part, crude tooth extending in the first direction with the progress in the first direction and forming die valleys and rough tooth forming die mountain muscle is formed; the rough tooth shaped outer punch is a cylindrical shape, extending in the first direction along the rough tooth shaped in punch side portions coarse tooth shaped outer punch first side portion, and the rough tooth shaped outer punch crude tooth shaped outer punch planar portion parallel to the first continuous to the side surface portion radial direction perpendicular to the central axis, the rough tooth shaped outer continuously to punch flat portion the coarse of the rough tooth forming die A coarse tooth shaped outer punch second side portion along the formed shaped die side portions extending in the first direction, wherein the crude tooth shaped outer punch flat portion between said tooth tip portions adjacent to each other has a recessed portion recessed is site corresponding to the site; the rough tooth shaped counter punch, said coarse tooth shaped counter punch side portion along the rough tooth forming die side portions extending in the first direction, the crude continuously in tooth shaped counter punch side portion has, parallel to rough tooth shaped counter punch plane portion in a radial direction perpendicular to the central axis; necked said specific site is the coarse teeth were by the reduced diameter step so as to be positioned in the molding die valleys, the bottom portion of the cylindrical container in a state sandwiched between the rough tooth shaped in a punch plane portion and the rough tooth shaped counter punch flat portion, the coarse tooth shaped outer punch the circle of the planar portion Is brought into contact with the opening end of the cylindrical container; then the rough tooth forming the punch, by relatively moving the rough tooth shaped outer punch and the rough tooth shaped counter punch in the direction of the rough tooth forming die, said cylindrical vessel the may form the crude tooth to specific sites.
[0031]
In the method of manufacturing a tooth profile component according to (26) above (25), in the finished tooth profile forming step, and the finished tooth profile forming the punch center axis is arranged coaxially with each other, the outer periphery of the finished tooth profile forming the punch using the completed tooth profile forming outer punch arranged along the complete tooth shaped knockouts disposed opposite to the finished tooth profile forming the punch, and a finished tooth profile forming die arranged along the circumference of the finished tooth profile forming knockout ; the finished tooth profile forming the punch, and continuous through the complete tooth profile forming the punch flat portions parallel, the finished tooth profile formed in the punch plane portion and finished tooth profile forming the punch curved portion in a radial direction perpendicular to the central axis It has finished tooth profile forming the punch side surface portion extending in a first direction parallel to said central axis Te, the finished tooth profile formed in the punch side surface portion, the shape and dimensions of the cross section perpendicular to the central axis There are the same as the rough tooth shaped in punch side surface portion, said first direction extending completed tooth profile formed in the punch mountain muscles and have completed tooth profile forming the punch valleys; the finished tooth profile forming die, said first direction and finished tooth profile forming die first side surface portion extending in the said finished tooth forming die finished tooth profile forming die planar portion parallel to the first on the side surface continuous radial direction perpendicular to the central axis, the finished tooth profile forming die continuously to the plane portion, and a finished tooth profile forming die second side portions extending in the first direction, the finished tooth profile forming die second side portion, the shape and dimensions of the cross section perpendicular to the central axis wherein is the same as the rough tooth forming die side portion, said first direction extending completed tooth profile forming die has a mountain muscle and finished tooth profile forming die valleys; the finished tooth shaped outer punch is a cylindrical shape, along the complete tooth profile forming the punch side portions Finished tooth shaped outer punch first side surface portion extending in serial first direction, the finished tooth shaped outer punch first the side surface portion continuous to the central axis parallel to a radial direction perpendicular to the perfection tooth shaped outer punch planar portion When, and a said complete tooth shaped outer punch planar portion continuously the finished tooth profile forming die along the second side surface portion extending in the first direction finished tooth shaped outer punch second side portion, the finished tooth profile molded outer punch flat portion, said tooth tip portion has a recess portion recessed is part corresponding to the site between the adjacent; formed in the specific portion of the cylindrical vessel at the rough tooth forming step wherein as crude tooth is positioned in the finished tooth profile forming die valleys, the bottom portion of the cylindrical container in a state sandwiched between the finished tooth profile formed in the punch plane portion and the finished tooth profile forming die planar portion, said the circle in the finished tooth shaped outer punch planar portion The open end of the cylindrical container pushing it, may form the finished tooth profile to the specific site of the cylindrical container.
[0032]
(27) In (20) - the manufacturing method of tooth profile component according to any one of (26), after the tooth forming step further have a step of flattening by cutting an end portion of the tooth profile part it may be in.
[0033]
(28) tooth profile component according to an embodiment of the present invention is a tooth profile part produced by the molding method of tooth profile component according to any one of the above (1) to (27).
[0034]
(29) tooth profile component according to another aspect of the present invention includes: a bottom portion; and a tooth tip portion which is formed on the side surface portion; said side portions upstanding from the bottom surface portion and provided with, no draft , dimensional accuracy of the thickness of ± 0.05mm ~ ± 0.3mm.
Effect of the invention
[0035]
According to the manufacturing method of tooth profile part according to the embodiment of the present invention, it is possible to suppress the overlap flaw occurs in the process of manufacturing the tooth profile part, it is possible to improve the yield of tooth parts. Also, by this manufacturing method, it is possible to obtain a non-overlapping flaw quality tooth profile parts. Further, by applying the cold forging method for producing a tooth profile parts, not only is no overlap scratches, no draft, that and the thickness accuracy of a ± 0.05 mm ~ ± 0.3 mm, and more it is possible to obtain a high-quality tooth profile parts.
BRIEF DESCRIPTION OF THE DRAWINGS
[0036]

[Figure 1A] is a diagram for explaining a conventional method of manufacturing a tooth profile part, it is a sectional view showing a state before starting the molding.
[Figure 1B] is a diagram for explaining a conventional method of manufacturing a tooth profile part, it is a sectional view showing a state in the middle of forming.
[Figure 1C] is a diagram for explaining a conventional method of manufacturing a tooth profile part, it is a sectional view showing a state in the middle of forming.
[Figure 1D] is a diagram for explaining a conventional method of manufacturing a tooth profile parts, a cross-sectional view showing a state after molding.
[FIG 2A] is a plan view of the tooth profile part manufactured by the method for producing a tooth profile component according to the first embodiment.
Is an A-A sectional view of a tooth profile parts shown in FIG. 2B] FIG 2A.
3 is a sectional view showing a state before starting the molding of the diaphragm process in the manufacturing method of tooth profile component according to the first embodiment.
It is a sectional view showing a state after the molding of the drawing process in FIG. 4] The method for producing a tooth profile component according to the first embodiment.
[Figure 5] is a diagram showing a state after the molding of the drawing step in the method of manufacturing a tooth profile component according to the first embodiment, a Y view plan view of FIG.
It is a plan view of a wavy cylindrical container to be formed by the FIG. 6A] drawing process.
It is a perspective view of a corrugated cylindrical container which is molded by FIG 6B] drawing process.
7 is a plan view showing a metal plate as a workpiece of the drawing process.
8 is a sectional view showing a state before starting forming of the more reduced径工in the manufacturing method of tooth profile component according to the first embodiment.
[FIG 9A] is a sectional view showing a state after molding of about contraction径工in the manufacturing method of tooth profile component according to the first embodiment.
It is an explanatory diagram relating to the outer shape of the corner portion of the reduced diameter cylindrical container obtained by [FIG 9B] diameter step.
[Figure 10] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the first embodiment, a D-D sectional view of FIG. 12.
[Figure 11] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the first embodiment, an A-A cross-sectional plan view of FIG. 10.
[Figure 12] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the first embodiment, a B view plan view of FIG. 10.
[Figure 13] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the first embodiment, it is E view bottom view of FIG. 10.
14 is a sectional view showing a state after the molding of the teeth forming step in the method of manufacturing a tooth profile component according to the first embodiment.
It is a perspective view showing a tooth profile parts which are molded by [15] tooth forming step.
[FIG. 16A] is a plan view of the tooth profile part to be molded by the manufacturing method of tooth profile component according to a second embodiment.
It is an A-A sectional view of a tooth profile parts shown in FIG. 16B] FIG 16A.
17 is a sectional view showing a state before starting the molding of the diaphragm process in the manufacturing method of tooth profile component according to a second embodiment.
18 is a sectional view showing a state after the molding of the drawing step in the method of manufacturing a tooth profile component according to a second embodiment.
[Figure 19] is a diagram showing a state after the molding of the drawing step in the method of manufacturing a tooth profile component according to the second embodiment, a Y view plan view of FIG. 18.
Is a plan view of a wavy cylindrical container to be formed by the FIG. 20A] drawing process.
It is a perspective view of a corrugated cylindrical container to be formed by the FIG. 20B] drawing process.
21 is a plan view showing a metal plate as a workpiece of the drawing process.
22 is a sectional view showing a state before starting forming of the more reduced径工in the manufacturing method of tooth profile component according to a second embodiment.
[FIG. 23A] is a sectional view showing a state after molding of about contraction径工in the manufacturing method of tooth profile component according to a second embodiment.
It is an explanatory diagram relating to the outer shape of the corner portion of the reduced diameter cylindrical container obtained by [FIG 23B] diameter step.
[Figure 24] is a diagram showing a state before the start molding of tooth parts coarse teeth forming step in the method of manufacturing according to the second embodiment, a D-D sectional view of FIG. 26.
[Figure 25] is a diagram showing a state before starting forming of rough teeth forming step in the method of manufacturing the tooth profile part according to the second embodiment, an A-A cross-sectional plan view of FIG. 24.
[Figure 26] is a diagram showing a state before the start molding of tooth parts coarse teeth forming step in the method of manufacturing according to the second embodiment, a B view plan view of FIG. 24.
[Figure 27] is a diagram showing a state before the start molding of tooth parts coarse teeth forming step in the method of manufacturing according to the second embodiment, an E view bottom view of FIG. 24.
[FIG. 28] is a sectional view showing a state after the molding of the crude teeth forming step in the method of manufacturing the tooth profile part according to the second embodiment.
It is a perspective view showing a rough tooth part to be molded by [29] crude tooth forming step.
[Figure 30] is a diagram showing a state before starting the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to the second embodiment, a D-D sectional view of FIG. 32.
[Figure 31] is a diagram showing a state before starting the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to the second embodiment, an A-A cross-sectional plan view of FIG. 30.
[Figure 32] is a diagram showing a state before starting the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to the second embodiment, a B view plan view of FIG. 30.
[33] is a sectional view showing a state after the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to a second embodiment.
FIG. 34 is a perspective view showing a tooth profile parts which are molded by complete tooth profile forming process.
[FIG. 35A] is a plan view of the tooth profile part to be molded by the manufacturing method of tooth profile component according to the third embodiment.
It is an A-A sectional view of a tooth profile parts shown in FIG. 35B] FIG 35A.
[FIG. 36] is a sectional view showing a state before starting the molding of the diaphragm process in the manufacturing method of tooth profile component according to the third embodiment.
[FIG. 37] is a sectional view showing a state after the molding of the drawing step in the method of manufacturing a tooth profile component according to the third embodiment.
[FIG. 38] is a plan view showing a metal plate as a workpiece of the drawing process.
[39] is a perspective view showing the cylindrical container to be formed by a drawing process.
[Figure 40] is a diagram showing a state before starting forming of the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the third embodiment, an A-A sectional view of FIG. 41.
[Figure 41] is a diagram showing a state before starting forming of the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the third embodiment, a Y view plan view of FIG. 40.
[FIG. 42] is a sectional view showing a state after the molding of the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the third embodiment.
Is a plan view of a first enlarged diameter cylindrical container to be molded by the first step of FIG. 43A] diameter step.
It is a perspective view of a first enlarged diameter cylindrical container to be molded by the first step of FIG. 43B] diameter step.
[Figure 44] is a diagram showing a state before the start molding of the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the third embodiment, an A-A sectional view of FIG. 45.
[Figure 45] is a diagram showing a state before the start molding of the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the third embodiment, a Y view plan view of FIG. 44.
[FIG. 46] is a sectional view showing a state after the molding of the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the third embodiment.
[FIG. 47] is a sectional view showing a state before starting forming of the more reduced径工in the manufacturing method of tooth profile component according to the third embodiment.
[FIG. 48A] is a sectional view showing a state after molding of about contraction径工in the manufacturing method of tooth profile component according to the third embodiment.
It is an explanatory diagram relating to the outer shape of the corner portion of the reduced diameter cylindrical container obtained by [FIG 48B] diameter step.
[Figure 49] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the third embodiment, a D-D sectional view of FIG. 51.
[Figure 50] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the third embodiment, an A-A cross-sectional plan view of FIG. 49.
[Figure 51] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the third embodiment, a B view plan view of FIG. 49.
[Figure 52] is a diagram showing a state before starting forming of teeth forming step in the method of manufacturing a tooth profile component according to the third embodiment, it is E view bottom view of FIG. 49.
[FIG. 53] is a sectional view showing a state after the molding of the teeth forming step in the method of manufacturing a tooth profile component according to the third embodiment.
It is a perspective view showing a tooth profile parts which are molded by [54] tooth forming step.
[FIG. 55A] is a plan view of the tooth profile part to be molded by the manufacturing method of tooth profile component according to a fourth embodiment.
It is an A-A sectional view of a tooth profile parts shown in FIG. 55B] FIG 55A.
[FIG. 56] is a sectional view showing a state before starting the molding of the diaphragm process in the manufacturing method of tooth profile component according to a fourth embodiment.
[FIG. 57] is a sectional view showing a state after the molding of the drawing step in the method of manufacturing a tooth profile component according to a fourth embodiment.
[FIG. 58] is a plan view showing a metal plate as a workpiece of the drawing process.
[FIG. 59] is a perspective view showing the cylindrical container to be formed by a drawing process.
[Figure 60] is a diagram showing a state before starting forming of the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the fourth embodiment, an A-A sectional view of FIG. 61.
[Figure 61] is a diagram showing a state before starting forming of the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the fourth embodiment, a Y view plan view of FIG. 60.
[FIG. 62] is a sectional view showing a state after the molding of the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the fourth embodiment.
Is a plan view of a first enlarged diameter cylindrical container to be molded by the first step of FIG. 63A] diameter step.
It is a perspective view of a first enlarged diameter cylindrical container to be molded by the first step of FIG. 63B] diameter step.
[Figure 64] is a diagram showing a state before the start molding of the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the fourth embodiment, an A-A sectional view of FIG. 65.
[Figure 65] is a diagram showing a state before the start molding of the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the fourth embodiment, a Y view plan view of FIG. 64.
[FIG. 66] is a sectional view showing a state after the molding of the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the fourth embodiment.
[FIG. 67] is a sectional view showing a state before starting forming of the more reduced径工in the manufacturing method of tooth profile component according to a fourth embodiment.
[FIG. 68A] is a sectional view showing a state after molding of about contraction径工in the manufacturing method of tooth profile component according to a fourth embodiment.
It is an explanatory diagram relating to the outer shape of the corner portion of the reduced diameter cylindrical container obtained by [FIG 68B] diameter step.
[Figure 69] is a diagram showing a state before starting forming of the fourth coarse teeth forming step in the method of manufacturing the tooth profile part according to the embodiment, a D-D sectional view of FIG. 71.
[Figure 70] is a diagram showing a state before starting forming of the fourth coarse teeth forming step in the method of manufacturing the tooth profile part according to the embodiment, an A-A cross-sectional plan view of FIG. 69.
[Figure 71] is a diagram showing a state before starting forming of the fourth coarse teeth forming step in the method of manufacturing the tooth profile part according to the embodiment, a B view plan view of FIG. 69.
[Figure 72] is a diagram showing a state before starting forming of the fourth embodiment coarse teeth forming step in the method for manufacturing a tooth profile component according to a E view bottom view of FIG. 69.
[FIG. 73] is a sectional view showing a state after the molding of the crude teeth forming step in the method of manufacturing the tooth profile part according to the fourth embodiment.
It is a perspective view showing a rough tooth molded article molded by FIG 74] rough tooth forming step.
[Figure 75] is a diagram showing a state before starting the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to the fourth embodiment, a D-D sectional view of FIG. 77.
[Figure 76] is a diagram showing a state before starting the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to the fourth embodiment, an A-A cross-sectional plan view of FIG. 75.
[Figure 77] is a diagram showing a state before starting the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to the fourth embodiment, a B view plan view of FIG. 75.
[FIG. 78] is a sectional view showing a state after the molding of the finished tooth profile forming process in the manufacturing method of tooth profile component according to a fourth embodiment.
[FIG. 79] is a perspective view showing a tooth profile parts which are molded by complete tooth profile forming process.
[FIG. 80A] is a plan view of the tooth profile part to be molded by the manufacturing method of tooth profile component according to a fifth embodiment.
It is an A-A sectional view of a tooth profile parts shown in FIG. 80B] FIG 80A.
[FIG. 81] is a cross-sectional view showing a state before the drawing step in the method of manufacturing a tooth profile component according to a fifth embodiment.
[FIG. 82] is a sectional view showing a state after the drawing step in the method of manufacturing a tooth profile component according to a fifth embodiment.
[Figure 83] is a diagram showing a state before the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the fifth embodiment, an A-A sectional view of FIG. 84.
[Figure 84] is a diagram showing a state before the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the fifth embodiment, a Y view plan view of FIG. 83.
[FIG. 85] is a sectional view showing a state after the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the fifth embodiment.
Is a plan view of a first enlarged diameter cylindrical container after the first step of FIG. 86A] diameter step.
It is a perspective view of a first enlarged diameter cylindrical container after the first step of FIG. 86B] diameter step.
[Figure 87] is a diagram showing a state before the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the fifth embodiment, an A-A sectional view of FIG. 88.
[Figure 88] is a diagram showing a state before the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the fifth embodiment, a Y view plan view of FIG. 87.
[FIG. 89] is a sectional view showing a state after the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the fifth embodiment.
[FIG. 90] is a cross-sectional view showing a state before enough shrinkage径工in the manufacturing method of tooth profile component according to a fifth embodiment.
It is a sectional view showing a state after more reduced径工in FIG 91A] method of manufacturing a tooth profile component according to a fifth embodiment.
It is an explanatory diagram relating to the outer shape of the corner portion of the reduced diameter cylindrical container obtained by [FIG 91B] diameter step.
[Figure 92] is a diagram showing a state before the tooth profile forming process in the manufacturing method of tooth profile component according to the fifth embodiment, a D-D sectional view of FIG. 94.
[Figure 93] is a diagram showing a state before the tooth profile forming process in the manufacturing method of tooth profile component according to the fifth embodiment, an A-A cross-sectional plan view of FIG. 92.
[Figure 94] is a diagram showing a state before the tooth profile forming process in the manufacturing method of tooth profile component according to the fifth embodiment, a B view plan view of FIG. 92.
[Figure 95] is a diagram showing a state before the tooth profile forming process in the manufacturing method of tooth profile component according to the fifth embodiment, an E view bottom view of FIG. 92.
[FIG. 96] is a perspective view of the outer punch in the method of manufacturing a tooth profile component according to a fifth embodiment.
[FIG. 97] is a sectional view showing a state after the teeth forming step in the method of manufacturing the tooth profile part according to the fifth embodiment.
[FIG. 98] is a perspective view of a tooth profile parts after tooth forming step in the method of manufacturing the tooth profile part according to the fifth embodiment.
Is a plan view of the tooth profile part to be molded by FIG 99A] method of manufacturing a tooth profile component according to the sixth embodiment.
It is an A-A sectional view of a tooth profile parts shown in FIG. 99B] FIG 99A.
[FIG. 100 is a sectional view showing a state before the drawing step in the method of manufacturing a tooth profile component according to the sixth embodiment.
[FIG. 101 is a sectional view showing a state after the drawing step in the method of manufacturing a tooth profile component according to the sixth embodiment.
[Figure 102] is a diagram showing a state before the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the sixth embodiment, an A-A sectional view of FIG. 103.
[FIG. 103 is a Y view plan view of Figure 102 showing a state before the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the sixth embodiment.
[FIG. 104 is a sectional view showing a state after the first step of the diameter expansion step in the method of manufacturing the tooth profile part according to the sixth embodiment.
It is a plan view of a first enlarged diameter cylindrical container after the first step of FIG. 105A] diameter step.
It is a perspective view of a first enlarged diameter cylindrical container after the first step of FIG. 105B] diameter step.
[Figure 106] is a diagram showing a state before the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the sixth embodiment, an A-A sectional view of FIG. 107.
[Figure 107] is a diagram showing a state before the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the sixth embodiment, a Y view plan view of FIG. 106.
[FIG. 108 is a sectional view showing a state after the second step of the enlarged diameter step in the method of manufacturing the tooth profile part according to the sixth embodiment.
[FIG. 109 is a sectional view showing a state before enough shrinkage径工in the manufacturing method of tooth profile component according to the sixth embodiment.
[FIG. 110A] is a sectional view showing a state after more reduced径工in the manufacturing method of tooth profile component according to the sixth embodiment.
It is an explanatory diagram relating to the outer shape of the corner portion of the reduced diameter cylindrical container obtained by FIG. 110B] diameter step.
[Figure 111] is a diagram showing a state before the rough teeth forming step in the method for manufacturing a tooth profile component according to the sixth embodiment, a D-D sectional view of FIG. 113.
[Figure 112] is a diagram showing a state before the rough teeth forming step in the molding process of tooth profile component according to the sixth embodiment, an A-A cross-sectional plan view of FIG. 111.
[Figure 113] is a diagram showing a state before the rough teeth forming step in the method for manufacturing a tooth profile component according to the sixth embodiment, a B view plan view of FIG. 111.
[Figure 114] is a diagram showing a state before the rough teeth forming step in the method for manufacturing a tooth profile component according to the sixth embodiment, an E view bottom view of FIG. 111.
[FIG. 115 is a perspective view of the rough tooth shaped outer punch in the method of manufacturing a tooth profile component according to the sixth embodiment.
[FIG. 116 is a sectional view showing a state after the rough teeth forming step in the method for manufacturing a tooth profile component according to the sixth embodiment.
[FIG. 117 is a perspective view of a molded product after the coarse teeth forming step in the method for manufacturing a tooth profile component according to the sixth embodiment.
[Figure 118] is a diagram showing a state before the finished tooth profile forming process in the manufacturing method of tooth profile component according to the sixth embodiment, a D-D sectional view of FIG. 120.
[Figure 119] is a diagram showing a state before the finished tooth profile forming process in the manufacturing method of tooth profile component according to the sixth embodiment, an A-A cross-sectional plan view of FIG. 118.
[Figure 120] is a diagram showing a state before the finished tooth profile forming process in the manufacturing method of tooth profile component according to the sixth embodiment, an E view plan view of FIG. 118.
[FIG. 121 is a perspective view of a completed tooth profile forming outer punch in the method of manufacturing a tooth profile component according to the sixth embodiment.
[FIG. 122 is a sectional view showing a state after the completion tooth profile forming process in the manufacturing method of tooth profile component according to the sixth embodiment.
[FIG. 123 is a perspective view of a tooth profile parts after completion tooth profile forming process in the manufacturing method of tooth profile component according to the sixth embodiment.
DESCRIPTION OF THE INVENTION
[0037]
Hereinafter, with reference to the accompanying drawings, a description will be given of a preferred embodiment of the present invention.
[First Embodiment]
　First, a description will be given of a first embodiment of the present invention.
　Figure 2A is a plan view of the tooth profile part 21 manufactured by the manufacturing method of tooth profile component according to the first embodiment. Figure 2B is an A-A sectional view of the tooth profile part 21 shown in Figure 2A. As shown in FIGS. 2A and 2B, the tooth profile part 21, in the direction of the wood shaft (dashed line shown in FIG. 2B), one end is opened, and the other of the bottomed cylindrical shape whose ends are closed is a component having a.
Tooth profile part 21 has a bottom surface portion 21c, and a side surface portion 21d which rises from the outer edge of the bottom surface portion 21c. Outer angle of the corner formed by the bottom surface portion 21c and side portions 21d are substantially perpendicular. Side portion 21d has a tooth portion 21a and the tooth bottom portion 21b provided so as to appear alternately in the circumferential direction around the wood shaft. In this embodiment, each of the number of tooth tip 21a and the tooth bottom portion 21b is illustrated when it is 8, the number of tooth tip 21a and the tooth bottom portion 21b (i.e., the number of teeth of tooth profile part 21) it is not limited to eight, and may be plural.
Tooth tip 21a is a portion that protrudes toward the radial direction of the outer around the wood axis than the tooth gap bottom 21b. More specifically, as shown in FIG. 2A, on the circumference of radius Ra around the wood shaft located outer circumferential surface of the tooth portions 21a, on the circumference of a radius Rc about the timber axis tooth tip located inner and outer peripheral surfaces of the tooth gap bottom 21b of 21a, the inner peripheral surface of the tooth bottom portion 21b on the circumference of a radius Rb around the wood shaft is located. In the following, the radius Ra is referred to the outer radius of the addendum portion 21a, the radius Rc is called the inner radius of the addendum portions 21a, it referred to the radius Rb and the inner radius of the tooth bottom portion 21b.
Further, in FIG. 2A, [theta] g denotes the angle between the tooth tip 21a adjacent to each other in a circumferential direction around the wood shaft.

claims
[Claim 1]
　By draw forming the workpiece, the diaphragm process and to obtain a cylindrical container having a bottom portion and a side portion;
　of the side surface portion of said cylindrical container, by reducing the diameter of the specific portion of the tooth tip portion is formed , the corner portion diameter step and for thickening between said side portion and said bottom portion;
　by forming said tooth tip portion to the specific portion of the cylindrical container which is reduced in diameter by the diameter step , the bottom surface portion, the side surface portion and a tooth forming step to obtain a tooth profile part having the tooth tip portion;
have,
the in about contraction径工is
the cylindrical in a section including the center axis direction and the radial direction of the cylindrical container when viewed container defines said the straight line L1 in contact parallel to the bottom surface of the cylindrical container, the point of intersection between the straight line L2 in contact parallel to the side surface portion of the cylindrical container and P0, the line L1 starts to leave from the bottom of the cylindrical container The P1, the point at which the straight line L2 starts to leave from the side surface portion of the cylindrical vessel is defined as P2, further the length between the point P1 and the intersection point P0 on the straight line L1 [Delta] R, the straight line when said intersection P0 on L2 it was defined as ΔH the length between the point P2,
　the outer shape of the corner portion of the cylindrical container, the plate thickness t of the cylindrical container, the length ΔR and method for producing a tooth profile parts, characterized in that for thickening the corner so as to satisfy the following conditional expression (1) represented by using the [Delta] H.
(ΔR + ΔH) ≦ 2t ... (1)
[Claim 2]
Tooth profile component according to claim 1, characterized by further having a diameter step of expanding the diameter of the specific part of the cylindrical container obtained by the drawing process, between the drawing step and the reduced diameter step the method of production.
[Claim 3]
The tooth forming step,
rough tooth forming step and forming a rough teeth on the specific site of the cylindrical container a reduced diameter in said reduced diameter step;
the finished tooth profile to the specific site by processing the coarse teeth ; and finished tooth profile forming step of forming, as the tooth tip portion
manufacturing method of tooth profile component according to claim 1 or 2, characterized in that it has a.　　
[Claim 4]
　The workpiece is a flat plate having a crest and a trough provided as appear alternately along a circumferential direction around the timber axis, said crest portion, said member axis from the valley method for producing a tooth profile component according to any one of claims 1 to 3, characterized in that a portion that protrudes toward the outer side in the radial direction to the center of.
[Claim 5]
　The workpiece is, the production method of tooth profile component according to any one of claims 1 to 3, characterized in that a flat plate of circular flat or polygonal.
[Claim 6]
　The workpiece is a flat plate having a crest and a trough provided as appear alternately along a circumferential direction around the timber axis, said crest portion, said member axis from the valley the a portion protruding toward the outer side in the radial direction to the center,
　in the drawing process, the side surface portion of the cylindrical container, to contain the peaks and the valleys, the workpiece and drawing,
　wherein in about contraction径工is reduced in diameter the ridges included in the side surface portion of the cylindrical container obtained by the drawing process as the specific site,
according to claim 1 that is characterized by method of manufacturing the tooth profile parts.
[Claim 7]
In the drawing process,
　the central axis is arranged coaxially, punch and, using a die,
　said punch, said central axis orthogonal punch planar portion parallel to the radial direction, the punch flat portion and the punch curved parts successively through, and a punch side portions extending in a first direction parallel to said central axis, said punch side portion is mountain muscle and the valley is formed to extend in the first direction ,
　the die, said central axis orthogonal die planar portion parallel to the radial direction, continuously to the die planar portion and a die side surface portion extending in the first direction, the die side part, wherein and mountain muscle and valleys extending in the first direction is formed,

　placing the said workpiece such that the crests of the workpiece is positioned at the valleys of said die on said die,
Thereafter, by relatively moving the punch toward the die, before Side portion to obtain said cylindrical container upright with respect to the bottom surface portion
The method of manufacturing the tooth profile part according to claim 6, characterized in that.
[8.]
In the diameter reduction step,
　the central axis is arranged coaxially, punch and a counter punch, with the die disposed on the outer circumference of the counter punch,
　said punch, in the radial direction perpendicular to the central axis parallel punch planar portion, the punch flat portion and continuously through the punch curved portion extending in a first direction parallel to the central axis, and radius of the tooth tip portion of the tooth part inner radius equivalent and a punch side portion,
　wherein the counter punch, said central axis orthogonal parallel counter punch flat portion in the radial direction, continuously in the counter punch flat portion extending in the first direction and the opposite direction, and radius and an outer radius equal to the counter punch side portion of the tooth tip portion of the tooth part,
　said die, said extending in a first direction, and a radial outer radius of the addendum portion of the tooth profile part equivalent of the die-side and And parts, and continuously through the die side part and the die curved portion, and a die inclined portion expanding in a direction orthogonal to the central axis with the progress in the first direction,

obtained by the drawing process the bottom portion of the cylindrical container in a state sandwiched between the punch and the counter punch, by relatively moving the punch and the counter punch toward the die, included in the side surface portion of the cylindrical container wherein for reduced diameter crest as said specific site, which
method for producing a tooth profile component according to claim 6 or 7, characterized in that.
[Claim 9]
In the tooth profile forming step,
　using the central axis is arranged coaxially, an inner punch and an outer punch that is disposed on the outer periphery of said punch, and the counter punch, a die which is disposed on the outer circumference of the counter punch ,
　said punch extending in a first direction parallel to the central axis in succession through the inner punch flat portions parallel, the inner punch curved portion and the inner punch plane portion in a radial direction perpendicular to the central axis and a inner punch side portion, in said punch side surface portion, said has punch mountain muscle among extending in the first direction and an inner punch the valley is formed,
　the die, the die side extending in the first direction and parts, and continuously through the die side part and the die curved portion, and a die inclined portion expanding in a direction orthogonal to the central axis in accordance with the process proceeds to the first direction, the die side part, die valleys and extending in the first direction Lee and mountain muscle is formed,
　the outer punch, and the central axis and orthogonal outer punch flat portion parallel to the radial direction, said along the inside punch side portion continuous to the outer punch flat portion first It has an outer punch first side surface portion extending in one direction, and the outer punch flat portion continuously the die along a side portion extending in the first direction outer punch second side portion,
　wherein the counter punch, the has a counter punch side portion along the die side surface portion extending in the first direction, and said counter punch side portion continuously to the central axis parallel to a radial direction perpendicular to a counter punch planar portion,

　the reduced as the crests of the cylindrical container a reduced diameter at the diameter step is positioned in the die valleys, across the bottom of the cylindrical container between the counter punch flat portion and the inner punch plane portion in it the state, the outer pan The flat portion is in contact with the open end of the cylindrical container,
then said punch, said outer punch and the counter punch are relatively moved in the direction of the die,
the outer punch flat portion has passed the die curved portion after said punch, while fixing the counter punch and the die, by relatively moving the outer punch in the direction of the counter punch, forming the addendum portion to the crest of the cylindrical container,
method for producing a tooth profile component according to any one of claims 6-8, characterized in that.
[Claim 10]
The tooth forming step,
rough tooth forming step and forming a rough teeth on the ridges of the cylindrical container a reduced diameter in said reduced diameter step;
the finished tooth profile on the ridges by processing the coarse teeth ; and finished tooth profile forming step of forming, as the tooth tip portion
manufacturing method of tooth profile component according to any one of claims 6-8, characterized in that it has a.
[Claim 11]
In the rough tooth forming step,
　the central axis is arranged coaxially, a coarse tooth forming the punch, and the crude tooth shaped outer punch is disposed on the outer periphery of the rough tooth forming the punch, and the crude tooth forming the counter punch, wherein a coarse tooth forming die used, which is disposed on the outer periphery of the rough tooth shaped counter punch,
　the rough tooth shaped in punch, parallel rough tooth forming the punch plane portion in a radial direction orthogonal to the central axis, the crude and a coarse tooth forming the punch side portion continuously through the tooth forming the punch plane portion and the coarse tooth forming the punch curved portion extending in a first direction parallel to the central axis, the rough tooth shaped in punch side the section, the and coarse tooth forming the punch mountain muscle extending in the first direction and the coarse tooth forming the punch the valley is formed,
　the rough tooth forming die, rough teeth extending in said first direction forming die side part When the coarse teeth Continuously through a form die side surface portion and the coarse tooth forming die curved portion, and a coarse tooth forming die ramps diverging in a direction orthogonal to the central axis in accordance with the process proceeds to the first direction, the rough tooth shaped the die side surface portion, wherein are rough tooth forming die valleys extending in the first direction and rough tooth forming die mountain muscle is formed,
　the rough tooth shaped outer punch, parallel to the radial direction perpendicular to the central axis coarse tooth shaped outer punch flat portion, and the rough tooth shaped outer punch flat portion continuously extending in the first direction along the rough tooth shaped in punch side portions rough tooth shaped outer punch first side surface portion, wherein continuously rough tooth shaped outer punch planar portion and a said rough tooth forming die along the side surface portion extending in the first direction coarse tooth shaped outer punch second side portions,
　the rough tooth shaped counter punch, said along said rough tooth forming die side portion first Coarse tooth shaped counter punch side portions extending in a direction, and a parallel rough tooth shaped counter punch plane portion in a radial direction perpendicular to the succession to rough tooth forming the counter punch side portion and the central axis,

　said diameter as the crests of the cylindrical container a reduced diameter in step is positioned at the rough tooth forming die valleys, the said bottom portion of said cylindrical container and the coarse tooth shaped in a punch plane portion roughness tooth molding counter a state sandwiched between the punch planar portion, the coarse tooth shaped outer punch flat portion is in contact with the open end of the cylindrical vessel,
then, the coarse tooth shaped in punch, the rough tooth shaped outer punch and the crude by relatively moving the tooth forming counter punch in the direction of the rough tooth forming die, wherein the forming a rough teeth on the ridges of the cylindrical container,
the tooth profile component according to claim 10, characterized in that The method of production.　　
[Claim 12]
In the finished tooth profile forming step,
　the central axis is arranged coaxially with the finished tooth profile forming the punch, and the finished tooth shaped outer punch being arranged on the outer circumference of the finished tooth profile forming the punch, and a finished tooth profile forming die ,
　the finished tooth profile forming the punch, and continuous through the complete tooth profile forming the punch flat portions parallel, the finished tooth profile formed in the punch plane portion and finished tooth profile forming the punch curved portion in a radial direction perpendicular to the central axis and a finished tooth profile forming the punch side surface portion extending in a first direction parallel to the central axis Te, the finished tooth profile formed in the punch side section, the cross section of the shape and dimensions the rough tooth shaped perpendicular to the central axis is identical to the inner punch side portion, the first has a complete tooth profile forming the punch mountain muscle and finished tooth profile formed in the punch valleys extending in a direction,
　the finished tooth profile forming die has a diameter direction orthogonal to the central axis parallel to the And finished tooth profile forming die planar portion, continuously in the finished tooth profile forming die planar portion and a finished tooth forming die side portions extending in the first direction, the finished tooth forming die side portion, perpendicular to the central axis shape and dimensions of the cross section is identical to the rough tooth forming die side part has a finished tooth profile forming die mountain muscle and finished tooth profile forming die valleys extending in the first direction,
　the finished tooth shaped outer punch , extending in the first direction along the complete tooth profile forming the punch side portion continuous to the finished tooth shaped outer punch flat portions parallel, the finished tooth shaped outer punch plane portion in a radial direction perpendicular to the central axis and finished tooth shaped outer punch first side portion, and said finished tooth shaped outer punch flat portion continuously the finished tooth profile forming die along the side surface portion extending in the first direction finished tooth shaped outer punch second side portions a,

　the coarse teeth Wherein formed in the mountain portion of the cylindrical vessel at a form step as the crude tooth is positioned in the finished tooth profile forming die valleys, the said bottom portion of said cylindrical container and the finished tooth profile formed in the punch plane portion a state sandwiched between the finished tooth profile forming die planar portion by a pushing that open end of the cylindrical vessel in the finished tooth shaped outer punch flat portion to form the finished tooth profile on the crest of the cylindrical container ,
method for producing a tooth profile component according to claim 11, characterized in that.
[Claim 13]
　The diameter expansion step of expanding the diameter of the specific part of the cylindrical container obtained by the drawing process, further comprising between said drawing step and the reduced diameter step,
the workpiece has a center of timber axis a flat plate having ridges and valleys which are provided so as to appear alternately in the circumferential direction, the crest portion, towards the material axis from the valley to the outer side in the radial direction to the center a portion for protruding Te,
　in the drawing process, the side surface portions of said cylindrical vessel, said to include the peaks and the valleys, the draw forming the workpiece,
　at the diameter expansion step, the and expanded the protrusion the crests is deformed contained in the side surface portion of the cylindrical container obtained by drawing process as the specific site,
　wherein in about contraction径工, the which is expanded by the diameter expansion step reducing the diameter of the protrusions of the cylindrical container,
it in claim 1, wherein Manufacturing method of the mounting tooth profile parts.
[Claim 14]
In said upset step,
the central axis is arranged coaxially with the first punch, a first step with a first die,
the central axis is arranged coaxially, and a second punch, the second and a second step using a die,
the first punch, a first punch planar portion parallel to the radial direction perpendicular to the central axis, the first punch planar portion and the first punch first curved parts continuously through a first punch inclined portion expanding in the radial direction perpendicular to the central axis with the progress in a first direction parallel to the central axis, the first punch inclined portion and the first punch second continuously through a curved portion and a first punch side portions extending in the first direction, wherein the first punch side portion, mountain muscle and valleys extending in the first direction is formed ,
wherein the first die includes a first die planar portion parallel to the radial direction perpendicular to the central axis, said first Continuously to die planar portion and a first die side portions extending in the first direction, wherein the first die side portion, mountain muscle and valleys extending in the first direction is formed, further, the first die side part, from said first punch side portion in the radial direction are arranged in the form of a plate corresponding to the thickness of the workpiece is offset,
the second punch is the radial direction perpendicular to the central axis a second punch flat portions parallel, sequentially through the second punch planar portion and a second punch curved portion and a second punch side portions extending in the first direction, the second punch side portion is identical to the shape and dimensions of the first punch side portion, the mountain muscle and valleys extending in the first direction is formed,
the second die, parallel to the radial direction perpendicular to the central axis a second die planar portion such, extending in the first direction in succession to the second die planar portion And a second die side portions that, the second die side surface portion has the same shape and size of the first die side portion, the mountain muscle and valleys extending in the first direction is formed cage,
and in the first step, the first die the cylindrical container so that the protrusion the crests of the cylindrical container obtained by the drawing process is deformed is positioned at the valleys of said first die put on and
then the by relatively moving in the direction of the first the first die punch, and expanded the projections,
wherein in the second step, the said protrusions being enlarged second die wherein placing the cylindrical container so as to be located in valleys on the second die,
then, by relatively moving the second punch toward the second die, said side surface portion is the bottom surface portion obtaining the cylindrical container to erect against,
it be characterized Method for producing a tooth profile component according to claim 13 that.
[Claim 15]
In the diameter reduction step,
the central axis is arranged coaxially, punch and a counter punch, with the die disposed on the outer circumference of the counter punch,
said punch, in the radial direction perpendicular to the central axis parallel punch planar portion, the punch planar portion and continuously through the punch curved portion extending in a first direction parallel to the central axis, and radius of the tooth tip portion of the tooth part inner radius equivalent and a punch side portion,
wherein the counter punch, said central axis orthogonal parallel counter punch flat portion in the radial direction, continuously in the counter punch flat portion extending in the first direction and the opposite direction, and radius and an outer radius equal to the counter punch side portion of the tooth tip portion of the tooth part,
said die, said extending in a first direction, and a radial outer radius of the addendum portion of the tooth profile part equivalent to die and It has a face, and the die side portion and through the die curved portion continuously, the die inclined portion expanding in a direction orthogonal to the central axis with the progress in the first direction,
diameter by the diameter expansion step a state sandwiched between said cylindrical container said bottom part the counter punch and the punch of the having the protrusion is, by relatively moving the punch and the counter punch toward the die, the cylindrical reducing the diameter of the protrusion included in the side surface of the container,
a manufacturing method of tooth profile component according to claim 13 or 14, characterized in that.
[Claim 16]
In the tooth profile forming step,
using the central axis is arranged coaxially, an inner punch and an outer punch that is disposed on the outer periphery of said punch, and the counter punch, a die which is disposed on the outer circumference of the counter punch ,
said punch extending in a first direction parallel to the central axis in succession through the inner punch flat portions parallel, said inner punch plane portion and the inner punch curved portion in a radial direction perpendicular to the central axis and a inner punch side portion, in said punch side surface portion, said has punch mountain muscle among extending in the first direction and an inner punch the valley is formed,
the die, the die side extending in the first direction and parts, and continuously through the die side part and the die curved portion, and a die inclined portion expanding in a direction orthogonal to the central axis in accordance with the process proceeds to the first direction, the die side part, die valleys extending in the first direction Fine and die mountain muscle is formed,
the outer punch, and parallel outer punch flat portion in a radial direction orthogonal to the central axis, along the outside of the inside punch side portion continuous to the punch planar portion wherein It has an outer punch first side portion extending in a first direction, and said outer outer punch second side portion punch flat portion continuously extending in the first direction along the die side surface portion,
wherein the counter punch the includes a counter punch side portion along the die side surface portion extending in the first direction, and said counter punch side portion continuously to the central axis parallel to a radial direction perpendicular to a counter punch planar portion,
said as the protrusions are reduced in diameter by the diameter step is positioned in the die valleys, the bottom portion of the cylindrical container in a state sandwiched between the inner punch plane portion and the counter punch plane portion, the outer punch plane Was in contact with the open end of the cylindrical container,　
then said punch, said outer punch and the counter punch are relatively moved in the direction of the die,
after the outer punch flat portion has passed the die curved surface portion, said punch, while fixing the counter punch and the die, by relatively moving the outer punch in the direction of the counter punch, forming the addendum portion to the projecting portion of the cylindrical container,
that method for producing a tooth profile component according to any one of claims 13 to 15, wherein.
[Claim 17]
The tooth forming step,
rough tooth forming step and forming a coarse tooth on the protrusion of the cylindrical container a reduced diameter in said reduced diameter step;
the finished tooth profile on the protrusion by processing the coarse teeth ; and finished tooth profile forming step of forming, as the tooth tip portion
manufacturing method of tooth profile component according to any one of claims 13 to 15, wherein a.
[Claim 18]
In the rough tooth forming step,
the central axis is arranged coaxially, a coarse tooth forming the punch, and the crude tooth shaped outer punch is disposed on the outer periphery of the rough tooth forming the punch, and the crude tooth forming the counter punch, wherein a coarse tooth forming die used, which is disposed on the outer periphery of the rough tooth shaped counter punch,
the rough tooth shaped in punch, parallel rough tooth forming the punch plane portion in a radial direction orthogonal to the central axis, the crude and a coarse tooth forming the punch side portion continuously through the tooth forming the punch plane portion and the coarse tooth forming the punch curved portion extending in a first direction parallel to the central axis, the rough tooth shaped in punch side the section, the and coarse tooth forming the punch mountain muscle extending in the first direction and the coarse tooth forming the punch the valley is formed,
the rough tooth forming die, rough teeth extending in said first direction forming die side part When the coarse teeth Continuously through a form die side surface portion and the coarse tooth forming die curved portion, and a coarse tooth forming die ramps diverging in a direction orthogonal to the central axis in accordance with the process proceeds to the first direction, the rough tooth shaped the die side surface portion, wherein are rough tooth forming die valleys extending in the first direction and rough tooth forming die mountain muscle is formed,
the rough tooth shaped outer punch, parallel to the radial direction perpendicular to the central axis coarse tooth shaped outer punch flat portion, and the rough tooth shaped outer punch flat portion continuously extending in the first direction along the rough tooth shaped in punch side portions rough tooth shaped outer punch first side surface portion, wherein continuously rough tooth shaped outer punch planar portion and a said rough tooth forming die along the side surface portion extending in the first direction coarse tooth shaped outer punch second side portions,
the rough tooth shaped counter punch, said along said rough tooth forming die side portion first Coarse tooth shaped counter punch side portions extending in a direction, and a parallel rough tooth shaped counter punch plane portion in a radial direction perpendicular to the succession to rough tooth forming the counter punch side portion and the central axis,
said diameter as the protrusions are reduced in diameter by step is positioned at the rough tooth forming die valleys, the bottom portion of the cylindrical container and the coarse tooth shaped in a punch plane portion with the coarse tooth forming the counter punch planar portion in sandwiched therebetween, the crude tooth shaped outer punch flat portion is in contact with the open end of the cylindrical vessel,
then, the coarse tooth forming the punch, the crude tooth shaped outer punch and the rough tooth forming the counter punch by relatively moving in the direction of the rough tooth forming die, the forming a coarse tooth on the protrusion of the cylindrical container,
producing lateral tooth part according to claim 17, characterized in that Law.
[Claim 19]
In the finished tooth profile forming step,
the central axis is arranged coaxially with the finished tooth profile forming the punch, and the finished tooth shaped outer punch being arranged on the outer circumference of the finished tooth profile forming the punch, and a finished tooth profile forming die ,
the finished tooth profile forming the punch, and continuous through the complete tooth profile forming the punch flat portions parallel, the finished tooth profile formed in the punch plane portion and finished tooth profile forming the punch curved portion in a radial direction perpendicular to the central axis and a finished tooth profile forming the punch side surface portion extending in a first direction parallel to the central axis Te, the finished tooth profile formed in the punch side section, the cross section of the shape and dimensions the rough tooth shaped perpendicular to the central axis is identical to the inner punch side portion, the first has a complete tooth profile forming the punch mountain muscle and finished tooth profile formed in the punch valleys extending in a direction,
the finished tooth profile forming die has a diameter direction orthogonal to the central axis parallel to the And finished tooth profile forming die planar portion, continuously in the finished tooth profile forming die planar portion and a finished tooth forming die side portions extending in the first direction, the finished tooth forming die side portion, perpendicular to the central axis shape and dimensions of the cross section is identical to the rough tooth forming die side part has a finished tooth profile forming die mountain muscle and finished tooth profile forming die valleys extending in the first direction,
the finished tooth shaped outer punch , extending in the first direction along the complete tooth profile forming the punch side portion continuous to the finished tooth shaped outer punch flat portions parallel, the finished tooth shaped outer punch plane portion in a radial direction perpendicular to the central axis and finished tooth shaped outer punch first side portion, and said finished tooth shaped outer punch flat portion continuously the finished tooth profile forming die along the side surface portion extending in the first direction finished tooth shaped outer punch second side portions a,
the coarse teeth Wherein formed in the projecting portion of the cylindrical vessel at a form step as the crude tooth is positioned in the finished tooth profile forming die valleys, the said bottom portion of said cylindrical container and the finished tooth profile formed in the punch plane portion a state sandwiched between the finished tooth profile forming die planar portion by a pushing that open end of the cylindrical vessel in the finished tooth shaped outer punch flat portion to form the finished tooth profile on the protrusion of the cylindrical container ,
method for producing a tooth profile component according to claim 18, characterized in that.
[Claim 20]
The diameter expansion step of expanding the diameter of the specific part of the cylindrical container obtained by the drawing process, further comprising between said drawing step and the reduced diameter step,
　and in the drawing step, a circular flat plate wherein by draw forming the workpiece, obtaining the cylindrical container,
a manufacturing method of tooth profile component according to claim 1, characterized in that.
[Claim 21]
In said upset step,
a first step of the central axis with a first punch and a first die disposed coaxially,
use a second punch and a second die where the center axis is arranged coaxially and a second step had,
the first punch, said a central axis perpendicular first punch planar portion parallel to the radial direction, through the first punch planar portion and the first punch first curved portion continuous, through a first punch inclined portion expanding in the radial direction perpendicular to the central axis with the progress in a first direction parallel to the central axis, said first punch inclined portion and a second curved portion first punch anda first punch side portions extending in the first direction in succession Te, wherein the first punch side portion and mountain muscle and the valley stretching is formed in the first direction,
wherein the first die has a first die first side surface portion extending in the first direction, the first die first side Yes and continuously to the central axis and perpendicular first die planar portion parallel to the radial direction, the first die second side portions extending in the first direction in succession to the first die planar portion, to and, wherein the first die second side portion has the mountain muscle offset the plate thickness portion of the workpiece from the first punch side portion in the radial direction and Tanisuji,
the second punch, the center and a second punch planar portion parallel to a radial direction perpendicular to the axis, the second punch side portions which extend to the first direction successively through the second punch planar portion and a second punch curved portion, the second punch side portions are the same as the shape and dimensions of the first punch side portion, the mountain muscle and valleys extending in the first direction is formed,
the second die, said first It is perpendicular to the second die first side portion extending in a direction, and the central axis in succession to the second die first side portion A second die planar portion parallel to the radial direction, continuously into the second die planar portion and a second die second side portions extending in the first direction, the second die second side portions is identical to the shape and dimensions of the first die second side portion, said being mountain muscle and the valley is formed to extend in a first direction,
wherein in the first step, which is obtained by the drawing process the cylindrical vessel was placed on the first die,
then, by relatively moving the first punch in the direction of the first die, said specific portion included in the side surface portion by the mountain muscle of the first punch diameter, and
wherein in the second step, placing said cylindrical container so that the specific portion that is expanded is positioned at the valleys of said second die on the second die planar portion,
then the second by relatively moving two punches in the direction of the second die, wherein Side portion to obtain said cylindrical container upright with respect to the bottom portion,
the manufacturing method of tooth profile component according to claim 20, characterized in that.
[Claim 22]
　In the reduced diameter step,
a punch, a counter punch the punch and the central axis are arranged coaxially, with a die which is disposed along the outer circumference of the counter punch,
said punch, said central shaft and radially parallel to the punch planar portion perpendicular, the punch planar portion and along the central axis continuously through the punch curved portion extending in a first direction parallel to said central axis, a radius of the tooth profile part anda equivalent punch side portion and the inner radius of the addendum portion,
the counter punch, said central axis parallel to the counter punch planar portion in a radial direction perpendicular, said continuously counter punch planar portion extending in a first direction and the opposite direction, radius anda counter punch side portion is equal to the outer radius of the addendum portion of the tooth part,
the die is extended in the first direction, the inner radius of the tooth parts An outer radius equal to the die side surface portion of the tooth tip portion, the die side part and the die inclined portion expanding in a direction orthogonal to the central axis according continuously through the die curved portion advances to the first direction If, having,
the bottom portion of the cylindrical container having the specific site that was expanded by the diameter expansion step in a state sandwiched between the punch and the counter punch, said punch and said counter punch by relatively moving in the direction of the die, the diameter decreases the specific site, included in the side surface portion of the cylindrical container
manufacturing method of tooth profile component according to claim 20 or 21, characterized in that.
[Claim 23]
In the tooth profile forming step,
an inner punch disposed central axis coaxially with each other, and the outer punch disposed along the outer periphery of said punch, and the counter punch disposed opposite to said punch, said counter punch using a die which is disposed along the outer periphery of
said punch, continuously through the inner punch flat portions parallel, said inner punch plane portion and the inner punch curved portion in a radial direction perpendicular to the central axis and has a punch side portion in extending in a first direction parallel to the central axis, in said punch side surface portion, the punch mountain muscle and inner punch valleys inner extending in a first direction is formed cage,
wherein the die includes a die side surface portion extending in the first direction, widens in the direction orthogonal to the central axis with the progress continuously through the die side part and the die curved portion in said first direction It has a die inclined portion, The serial die side portions, the die valleys extending in the first direction and has die mountain muscle is formed,
the outer punch is a cylindrical shape, the first direction along the inner punch side portions outer punch and the first side surface portion, and the outer punch first side surface portion continuously to the central axis and orthogonal outer punch flat portion parallel to the radial direction, said die continuously to the outer punch plane portion which extends in wherein a and the outer punch second side portion along the die side surface portion extending in the first direction, of the outer punch flat portion is a portion corresponding to the portion between the tooth tip portions adjacent to each other has a recessed recess,
the counter punch and the counter punch side portions extending in the first direction along the die side surface portion, the radial direction perpendicular to the central axis continuously in the counter-punch side portions has a counter punch flat portions parallel, to,
As the specific site that was reduced in diameter by Kichijimi径step is positioned in the die valleys, the bottom portion of the cylindrical container in a state sandwiched between the counter punch flat portion and the inner punch plane portion , the outer punch flat portion is in contact with the open end of the cylindrical container,
then said punch, said outer punch and the counter punch are relatively moved in the direction of the die,
the outer punch flat portion the die curved surface after passing through the part, said punch, said counter punch and while fixing the die, the outer by relatively moving in the direction of the counter punch a punch, the tooth tip portion to the specific portion of the cylindrical container forming a
manufacturing method of tooth profile component according to any one of claims 20 to 22, characterized in that.
[Claim 24]
The tooth forming step,
rough tooth forming step and forming a rough teeth on the specific site of the cylindrical container a reduced diameter in said reduced diameter step;
the finished tooth profile to the specific site by processing the coarse teeth ; and finished tooth profile forming step of forming, as the tooth tip portion
manufacturing method of tooth profile component according to any one of claims 20 to 22, characterized in that it has a.
[Claim 25]
In the rough tooth forming step,
a rough tooth forming the punch are arranged central axis coaxially with each other, a coarse tooth shaped outer punch disposed along the outer periphery of the rough tooth shaped in punch, the rough tooth shaped in using a coarse tooth forming the counter punch disposed opposite to the punch, and a coarse tooth forming die arranged along the circumference of the rough tooth shaped counter punch,
the rough tooth shaped in punch, perpendicular to the central axis parallel rough tooth forming the punch plane portion in a radial direction, the coarse teeth extending in a first direction parallel to the central axis continuously through a coarse tooth forming the punch plane portion and the coarse tooth forming the punch curved portion molding has an inner punch side portion, wherein the coarse tooth forming the punch side portion, rough tooth shaped in punch mountain muscle extending in the first direction and the coarse tooth forming the punch the valley are formed,
the crude tooth profile forming die Coarse tooth forming die side portions extending in the first direction, in a direction perpendicular to the central axis in accordance with the continuously through the rough tooth forming die side portion and the coarse tooth forming die curved portion advances to the first direction a coarse tooth forming die inclined portion expanding, and wherein the coarse tooth forming die side part, crude tooth forming die valleys and rough tooth forming die mountain muscle extending in the first direction is formed,
the crude tooth shaped outer punch is a cylindrical shape, the coarse tooth shaped outer punch first side portion along the rough tooth profile forming the punch side surface portion extending in the first direction, the rough tooth shaped outer punch parallel rough tooth shaped outer punch flat portion in the radial direction continuously to the first side surface portion perpendicular to the central axis, the rough tooth forming of the rough tooth forming die continuously in the crude tooth shaped outer punch planar portion crude teeth extending in the first direction along the die side surface portion Includes a molded outer punch second side portion, the coarse tooth shaped outer punch flat portion has a recess portion recessed is part corresponding to the portion between adjacent of said tooth tip portion to each other,
the rough tooth forming counter punch is orthogonal the coarse tooth shaped counter punch side portion along the rough tooth forming die side portions extending in the first direction, continuously to the rough tooth shaped counter punch side surface portion and the central axis diameter a parallel rough tooth shaped counter punch planar portion in a direction, and
so that the specific portion that is reduced in diameter by the diameter step is positioned at the rough tooth forming die valleys, the bottom portion of the cylindrical container wherein said coarse tooth shaped in a punch plane portion in a state sandwiched between the rough tooth forming the counter punch flat portion, is brought into contact with the crude tooth shaped outer punch planar portion to an open end of the cylindrical vessel,
then, the crude tooth shaped in Pas Inch, by the rough tooth shaped outer punch and the rough tooth forming the counter punch to cause relative movement in the direction of the rough tooth forming die, the forming a rough teeth on the specific site of the cylindrical container,
characterized in that method for producing a tooth profile component according to claim 24.
[Claim 26]
In the finished tooth profile forming step,
and the finished tooth profile forming the punch center axis to each other are arranged coaxially, and the finished tooth shaped outer punch disposed along the outside of the finished tooth profile forming the punch, the finished tooth profile forming the and finished tooth shaped knockouts disposed opposite to the punch, with the finished tooth profile forming die arranged along the circumference of the finished tooth shaped knockout,
the finished tooth profile forming the punch radial direction perpendicular to the central axis parallel completed tooth profile forming the punch plane portion, the finished tooth profile formed in the punch plane portion and finished tooth profile forming the continuously through the punch curved portion extending in a first direction parallel to said central axis completed tooth profile forming the has a punch side portion, the finished tooth profile formed in the punch side surface portion, the shape and dimensions of the cross section perpendicular to the central axis is identical to the rough tooth shaped in punch side surface portion, said first Has finished tooth profile forming the punch mountain muscle and finished tooth profile formed in the punch valleys extending in a direction,
the finished tooth profile forming die is a complete tooth profile forming die first side surface portion extending in the first direction, the finished tooth profile molding die and first continuously to the side surface portion and the central axis a finished tooth profile forming die planar portion parallel to the radial direction perpendicular, in succession to the completion tooth forming die planar portion, the finished tooth shaped extending in the first direction and a die second side portion, the finished tooth profile forming die second side portion, the shape and dimensions of the cross section perpendicular to the central axis is identical to the rough tooth forming die side portion, in the first direction finished tooth profile forming die has a mountain muscle and finished tooth profile forming die valleys extending,
the finished tooth shaped outer punch is a cylindrical shape, extending in the first direction along the complete tooth profile forming the punch side portions finished tooth shaped outer punch first side portion of , Said finished tooth shaped outer punch first continuously to the side surface portion and the central axis a finished tooth shaped outer punch planar portion parallel to the radial direction perpendicular, the finished tooth profile contiguous to the finished tooth shaped outer punch planar portion forming die along the second side surface portion and a finished tooth shaped outer punch second side portions extending in the first direction, the finished tooth shaped outer punch flat portion between said tooth tip portions adjacent to each other has a recessed portion recessed is site corresponding to the site,
the so said rough tooth formed in said specific portion of said cylindrical vessel at rough tooth forming step is positioned in the finished tooth profile forming die valleys, the the bottom portion of the cylindrical container in a state sandwiched between the finished tooth profile forming die planar portion and the finished tooth profile formed in the punch plane portion, press the open end of the cylindrical vessel at the completion tooth shaped outer punch planar portion by writing, the said cylindrical container Wherein forming the finished tooth profile, the specific site
manufacturing method of tooth profile component according to claim 25, characterized in that.
[Claim 27]
After the tooth forming step, the manufacturing method of tooth profile component according to any one of claims 20 to 26, further comprising the step of flattening by cutting an end portion of the tooth part.
[Claim 28]
　Tooth profile parts, characterized in that it is manufactured by the manufacturing method of tooth profile component according to any one of claims 1-27.
[Claim 29]
　Bottom and;
　and side portions upstanding relative to the bottom surface portion;
　and a tooth tip portion which is formed on the side surface portion;
with a
　draft angle is not,
　thickness accuracy ± 0.05 mm ~ ± 0. is 3 mm,
the tooth profile parts, characterized in that.