DESC:FIELD OF INVENTION:
[001] The present invention generally relates to a tool holding device and particularly to a device for holding a reamer tool for reaming taper holes on the thrust shaft of the Main Thrust Block (MTB) with Sound Proof Coupling (SPC) paring.

BACKGROUND OF THE INVENTION:
[002] Currently, the thrust shaft of MTB with SPC paring job is critical in many terms as the proper tools (Taper Reamers) required for the reaming and pairing activity were not available, despite the machine RPM recommended being very low (below 10 RPM). When using this combination, it is recommended to have the lowest RPM of available machines above 50 RPM. It is also necessary to check the roughness of the holes as the holes should not be rougher than Ra 1.25, and also angularity should be maintained at a ratio of 1:10. The Magnitude of surface contact of the conical bolts has also to be more than 80%.

[003] Material cutting of the thrust shaft of MTB with SPC is highly critical in machining and maintaining accuracy. Total machining and reaming of this job will consume an average of 105 Man days (3.5 months) period.

[004] The US Patent No. 4,740,116 disclosed a holding device for a reamer tool in a general machine tool, which comprises a tool holder adapted to be secured to the machine tool for rotation about a longitudinal axis, a tool receiving bushing radially displaceably guided in the tool holder, and a coupling providing a non-rotational connection between the tool holder and the tool receiving bushing. The coupling comprises a coupling disc having two radial end faces, a first one of the coupling disc end faces cooperating with a radical end face of the tool holder, a second one of the coupling disc end faces cooperating with a radial end face of the tool receiving bushing, at least a part of the coupling disc end faces and of the tool holder and tool receiving bushing end faces being configurated as planar gliding surfaces, and pairs of the gliding surfaces facing and contacting each other for transmitting axial pushing forces to the reamer tool.

[005] The US Patent No. 5,836,728 disclosed a floating reamer holder used in machine tools which includes a tool holder coupled to a mounting shank which is receivable in the chuck of the turret of a machine tool. The coupling between the tool holder and shank includes both a fine adjustment which adjusts the float in order to prevent enlargement of the hole being reamed as well, as to reduce chatter and a coarse adjustment, which compensates for misalignment between the turret and axis of the reamer. The coarse adjustment is accomplished by attaching the mounting shank to an adaptor with a pair of threaded bolts, each of which passes through oversized holes through the base of the mounting shank and is threaded into threaded bores in the adaptor. Since the holes are oversized, the mounting shank is radially shiftable with respect to the adaptor to compensate for machine misalignment.

[006] The above given prior arts are general-purpose reamer holders designed for a variety of reaming applications. They lack the specificity required to address the unique challenges and precision requirements of reaming taper holes on the thrust shaft of the Main Thrust Block with Sound Proof Coupling paring.

[007] To overcome the aforesaid problem, a tool holding device is introduced herein.

SUMMARY OF INVENTION:
[008] The present invention pertains to a tool-holding device for holding a reamer tool for reaming taper holes on Thrust shaft of Main Thrust Block (MTB) with Sound Proof Coupling (SPC) paring.

[009] An object of the present invention is to provide a tool holding device designed to securely hold the reamer tool in a horizontal position during the reaming process.

[010] An object of the present invention is to provide a tool holding device tailored for reaming taper holes on the thrust shaft of the MTB with SPC paring, ensuring compatibility with the specific needs of this application.

[011] In an aspect of the present invention, the tool holding device for reamer comprises a socket head, a holder socket configured to accommodate the socket head and a holder pin protruded from the holder socket.

[012] In an aspect of the present invention, the holder pi is configured to securely connect and hold the reamer tool in position within the device.

BRIEF DESCRIPTION OF THE DRAWINGS:-
[013] The invention has other advantages and features which will be more readily apparent from the following detailed description of the invention and the appended claims, when taken in conjunction with the accompanying drawings, in which:

Fig 1: depicts the Machine Reamer Mandrel.

DETAILED DESCRIPTION OF THE INVENTION:
[014] While the invention has been disclosed with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt to a particular situation or material to the teachings of the invention without departing from its scope.

[015] Throughout the specification and claims, the following terms take the meanings explicitly associated herein unless the context clearly dictates otherwise. The meaning of "a", "an", and "the" include plural references. The meaning of "in" includes "in" and "on." Referring to the drawings, like numbers indicate like parts throughout the views. Additionally, a reference to the singular includes a reference to the plural unless otherwise stated or inconsistent with the disclosure herein.

[016] The figures and protocols have been represented where appropriate by conventional representations in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

[017] As illustrated in Figure 1, the tool holding device 100 comprises a socket head 10, a holder socket 20 configured to accommodate the socket head 10 and a holder pin 30 protruded from the holder socket 20.

[018] In an embodiment of the present invention, the tool holding device 100 can be used to hold a reamer tool that can ream taper holes on Thrust shaft of Main Thrust Block (MTB) with Sound Proof Coupling (SPC) paring.

[019] In an another embodiment of the present invention, the tool holding device 100 can hold the reamer for reaming taper holes on Thrust shaft of MTB with SPC paring with an angularity of 1:10.

[020] In still another embodiment of the present invention, the tool holding device 100 can hold the reamer with conical bolts having a magnitude of surface contact of more than 80%.

[021] In yet another embodiment of the present invention, the tool holding device 100 can hold heavy tools in a horizontal position.

[022] Although a particular exemplary embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized by those skilled in the art that variations or modifications of the disclosed invention, including the rearrangement in the configurations of the parts, changes in steps and their sequences may be possible. Accordingly, the invention is intended to embrace all such alternatives, modifications, and variations as may fall within the spirit and scope of the present invention.

[023] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.

ADVANTAGES OF THE INVENTION:
[024] The present invention provides a tool holding device that helps in achieving proper torque required for the Manual Reaming Method.
[025] The present invention provides a tool holding device that helps in completing the reaming method within a period of 41 Man-days, thus saving coast and Reaming Time.
[026] The present invention provides a tool holding device that capable of holding heavy reamer tools in a horizontal position, making it suitable for applications where substantial cutting forces are involved.
[027] The present invention provides a tool holding device that enables to machine the curved side of the SP Coupling.
[028] The present invention provides a tool holding device that furnishes an improved surface finish to the hole.
,CLAIMS:1. A tool holding device 100 for the reamer, comprising:
a socket head 10;
a holder socket 20 configured to accommodate the socket head 10; and
a holder pin 30 protruded from the holder socket 20.

2. The tool holding device 100 as claimed in claim 1, wherein the holder pin 30 is configured to securely connect and hold the reamer tool in position within the device.