DESC:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION
(See Section 10 and Rule 13)

Title of invention:
A MULTI-UTILITY RISER FOR CLAMPING WORK PIECE

Applicant:
BEML Limited
A company Incorporated in India under the Companies Act, 1956
Having address:
BEML Soudha, 23/1, 4th Main,
Sampangirama Nagar, Bengaluru - 560 027,
Karnataka, India

The following specification particularly describes the invention and the manner in which it is
to be performed.

CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
[001] The present application claims priority from Indian provisional application no. 201941053187 filed on 20th December 2019.

TECHNICAL FIELD
[002] The present subject matter described herein, in general, relates to a work piece mounting device and more specifically relates to a support based riser for mounting and clamping regular and irregular work piece.

BACKGROUND OF THE INVENTION
[003] During machining of a work piece, a support base is required for mounting and clamping of work piece relative to cutting tool. The mounting and clamping maintain the position of work piece and restricts the work piece movement. The conventional riser comprises 3, 4 or 6 T-slots on the mounting plate to clamp the work piece. The user needs to go for separate independent risers for each of the requirements. The plurality of T-slots on conventional riser find it difficult to accommodate mounting of an irregular shaped work piece. Hence, there is a need to provide the riser with plurality of T-slots at regular angular intervals for rigid clamping of regular and irregular shape and size of work piece.

OBJECTS OF THE INVENTION
[004] Main object of the present invention is to provide a multi utility riser for mounting work piece of regular or any irregular shape.
[005] Another object of the present invention is to rigidly clamp the work piece of regular or irregular shape during machining.
[006] Yet another object of the present invention is to raise the height of the workpiece to meet the reach of the cutting tool of the machine.
[007] Another object of the present invention is to provide the T-slots on mounting plate at regular angular interval to rigidly clamp the work piece for machining.
SUMMARY OF THE INVENTION
[008] Before the present system is described, it is to be understood that this application is not limited to the particular machine or an apparatus, and methodologies described, as there can be multiple possible embodiments that are not expressly illustrated in the present disclosures. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only, and is not intended to limit the scope of the present application. This summary is provided to introduce aspects related to a support-based riser for mounting and clamping regular and irregular work piece for machining processes, and the aspects are further elaborated below in the detailed description. This summary is not intended to identify essential features of the proposed subject matter nor is it intended for use in determining or limiting the scope of the proposed subject matter.
[009] The present subject matter described herein, in general, relates to a riser for mounting and clamping regular and irregular work piece. The multi utility riser is configured with alternate multiple blind T-slots and through T-slots at regular angular intervals on top plate to mount and clamp the work piece. Also, the multi utility riser is configured to raise the height of the work piece to meet the reach of cutting tool for machining.

BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The foregoing summary, as well as the following detailed description of embodiments, is better understood when read in conjunction with the appended drawing. For the purpose of illustrating the disclosure, there is shown in the present document example constructions of the disclosure, however, the disclosure is not limited to the specific methods and apparatus disclosed in the document and the drawing:
[0011] The detailed description is described with reference to the accompanying figure. In the figure, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawing to refer like features and components.
[0012] Figure 1 illustrates the multi utility riser in accordance with one embodiment of the present subject matter.
[0013] Figure 2 illustrates top view and sectional view of the multi utility riser in accordance with one embodiment of the present subject matter.
[0014] Figure 3 illustrates manufacturing process of multi utility riser in accordance with one embodiment of the present subject matter.
[0015] The figure depicts various embodiments of the present disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following discussion that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION OF THE INVENTION
[0016] Some embodiments of this disclosure, illustrating all its features, will now be discussed in detail. The words "comprising", “having”, and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, the exemplary, systems and methods are now described. The disclosed embodiments are merely exemplary of the disclosure, which may be embodied in various forms.
[0017] Various modifications to the embodiment will be readily apparent to those skilled in the art and the generic principles herein may be applied to other embodiments. However, one of ordinary skill in the art will readily recognize that the present disclosure is not intended to be limited to the embodiments illustrated, but is to be accorded the widest scope consistent with the principles and features described herein.
[0018] Now referring to figure 1, in one aspect of the present invention, the multi utility riser (100) for mounting and clamping regular and irregular work piece is disclosed.
[0019] Now referring to figure 2, in one aspect of the present invention, the top view and sectional view of the multi utility riser (100) is disclosed. The multi utility riser (100) comprises a base plate (110), a top plate (120), a ring (130), C- channel block supports (140), Gussets (150).
For the base plate (110),
External diameter (D1) =1200 mm;
Internal diameter (d1) = 500 mm;
Pitch circle diameter (PCD1) = 900 mm;
Thickness (T1) = 50 mm.
For the top plate (120),
External diameter (D2) = 1200 mm;
Internal diameter (d2) = 280 mm;
Internal diameter (d4) = 270 mm;
Pitch circle diameter (PCD2) = 1000 mm;
Thickness (T2) = 55 mm.
Height of riser (H1) = 250 mm;
Distance between base plate and top plate = (H2) = 155 mm
For the ring (130),
External diameter of ring collar (D3) = 280 mm;
External diameter (D4) = 270 mm;
Internal diameter (d3) = 230 mm;
Thickness of ring collar (T3) = 16 mm.
The dimensions of the riser (100) are given as per one aspect of the present invention. However, the dimensions of the riser (100) will vary according to size of work piece is to be mounted.
Pitch circle diameter (PCD1) of the base plate (110) is configured with 12 equally spaced holes (180) of diameter 22 mm to fix the base plate (110) of the multi utility riser (100) on the work table. The multiple C-channel block supports (140) are configured to weld on the base plate (110) and the top plate (120) at an equal angular interval. The multiple gussets (150) are configured to support the riser (100) for better rigidity and higher load bearing capacity. The top plate (120) is configured with 12 T-slots to clamp work piece of any configuration. The alternate six blind T-slots (170) and six through T-slots (160) are configured at regular angular interval of 30° on top plate (120). Pitch circle diameter of the top plate (120) is configured with three equally spaced holes (190) of diameter 20 mm to lift the riser (100). The ring (130) is configured to fix in the internal diameter of the top plate (110).
[0020] Now referring to figure 3, in one aspect of the present invention, the manufacturing process (200) for the multi utility riser (100) is disclosed. For manufacturing the multi utility riser (100), the base plate (110), the top plate (120) with T-slots, the ring (130), multiple C- Channel block supports (140) and the gussets (150) are required. The turning operation (210) is done on the top plate (120) up to predetermined dimensions using turning tool. Then, the turning operation (210) is done on the base plate (110) up to predetermined dimensions using turning tool. The ring (130) with collar and having thickness (T3) = 16 mm, External diameter of ring collar (D3) = 280 mm; External diameter of ring (D4) = 270 mm and Internal diameter of ring (d3) = 230 mm is made by turning operation. The ring (130) is provided with the collar such that the ring (130) after mounting on the top plate (120) can be retained.
[0021] Then the alternate blind T-slots (170) and through T-slots (160) on the top plate (120) is made by the T-slot milling cutter on the milling machine (220). To fix the base plate (110) of the multi utility riser (100) on work table, the angularly equispaced holes (180) on pitch circle diameter of the base plate (110) are manufactured by drilling operation (240) on the base plate (110). The predetermined internal diameter of base plate (110) is made by drilling operation (240). For lifting the riser (100), angularly equispaced holes (190) on pitch circle diameter of the top plate (120) is made by drilling operation (240). The predetermined internal diameter of the top plate (120) is configured to mount the ring (130). The predetermined internal diameter of the top plate (120) and the ring (130) is made by drilling operation (240). Then the boring operation is done on the internal diameter of the top plate (120) to maintain internal diameter of the top plate (d4) = 270 mm configured to mount the ring (130). Further the boring operation is carried on the top plate to develop a step of predetermined height on the internal diameter of the top plate (d4) to enlarge the internal diameter of the top plate (d2) = 280 mm to accommodate the external diameter of ring collar (D3). The ring (130) is configured to be mounted on the internal diameter of the top plate (120) to restrict the movement of clamp in the “T” slot up to the internal diameter of the top plate (120) such that the clamp moves from the external periphery of the top plate (120) till the internal diameter of the top plate. Then the base plate (110) and the top plate (120) are joined together by full welding (250) the multiple C-channel block supports (140) at regular angular intervals in between the base plate (110) and the top plate (120). The multiple gussets (150) are welded in between the base plate (110) and the top plate (120) to support the riser (100) for better rigidity and improves load bearing capacity. The stress relieving (260) is the heat treatment process which is done on the riser (100) to reduce internal stress from the riser (100). Then the surface grinding process (270) is done on the base plate (110) and the top plate (120) of the riser (100) for producing smooth, flat and finished surface. After this scraping process (280) is done on grinded surface of the base plate (110) and top plate (120) to produce highly accurate surface finish by removing very small scrapes and chips from riser (100).

[0022] REFERRAL NUMERALS:
Element Description Reference Numeral
Multi Utility Riser 100
Base plate 110
Top plate 120
Ring 130
C- Channel block support 140
Gussets 150
Through T-slot 160
Blind T-slot 170
Holes for fixing riser on work table 180
Holes for lifting riser 190
Manufacturing process of riser 200
Turning top plate 210
Turning base plate 220
Mill T-slots on top plate 230
Drill base plate and top plate 240
Weld C-channels and Gussets 250
Stress relieve the riser 260
Surface grind top and base plate 270
Scrape top and base plate 280

,CLAIMS:
1. A multi utility riser (100) for clamping work piece comprising:
at least one base plate (110) configured with equally spaced holes (180) to fix the base plate (110) of the multi utility riser (100) on the work table;
at least one top plate (120) configured with plurality of T-slots to clamp work piece;
at least one ring (130) configured to be mounted in the internal diameter of the top plate (120) to restrict the movement of clamp in the through ‘T’ slots on top plate (120);
plurality of C-channel block supports (140) configured to weld on the base plate (110) and the top plate (120) at an equal angular interval;
plurality of gussets (150) configured to be mounted on C-channel block supports (140) in between the base plate (110) and the top plate (120) to provide rigidity and improve load bearing capacity to the multi utility riser (100).

2. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the base plate (110) is configured with external diameter (D1), internal diameter (d1) and the pitch circle diameter (PCD1).

3. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the pitch circle diameter (PCD1) of base plate (110) is configured with plurality of holes (180) at regular angular interval to fix the base plate (110) of the multi utility riser (100) on the work table.

4. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the top plate (120) is configured with external diameter (D2), internal diameter (d2) and the pitch circle diameter (PCD2).

5. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the pitch circle diameter (PCD2) of top plate (120) is configured with plurality of holes (190) at regular angular interval to lift the riser (100).

6. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the top plate (120) is configured with alternate blind T-Slots (170) and through T-slots (160) at regular angular interval of 30° on top plate (120) to clamp work piece of regular and irregular shape.

7. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the blind T-Slots (170) and through T-slots (160) are configured with different lengths.

8. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the ring (130) is configured with internal diameter (d3), external diameter (D4), external ring collar diameter (D3) and ring collar thickness (T3) adapted to be mounted on the corresponding internal diameter of the top plate (120) to restrict the movement of clamp in the through ‘T’ slots up to the internal diameter of the top plate (120).

9. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the riser (100) is configured with the height (H1).

10. The multi utility riser (100) for clamping work piece as claimed in claim 1, wherein the dimensions of the riser (100) is configured to vary according to size and number of work piece is to be mounted and clamped.

11. The method of manufacturing the multi utility riser comprising the steps of:
• turning operation of the top plate (120) and the base plate (110) up to predetermined dimensions;
• turning operation of the ring (130) up to predetermined dimensions to form the collar on it for mounting on the top plate (120);
• cutting plurality of alternate blind T-slots (170) and through T-slots (160) on the top plate using T-slot milling cutter for clamping the work piece;
• drilling plurality of angularly equispaced holes (180) of predetermined dimensions and at predetermined angular location on a pitch circle diameter of the base plate (110) for mounting the base plate (110) of the multi utility riser (100) on work table;
• drilling plurality of the angularly equispaced holes (190) of predetermined dimensions and at predetermined angular locations on pitch circle diameter of the top plate (120) for lifting the riser (100);
• drilling the centre of the top plate (120) then the centre of the base plate (110) and then the centre of ring (130) for internal diameter of predetermined dimensions;
• boring the internal diameter of the top plate (120) up to predetermined dimensions along with a step of predetermined height for mounting the ring (130) with collar on it, to restrict the movement of clamp in the through ‘T’ slots from its entry point up to the internal diameter of the top plate (120);
• welding plurality of C-channel block supports (140) on the base plate (110) and the top plate (120) at an equal angular interval form an integral multi utility riser;
• mounting plurality of gussets (150) on C-channel block supports (140) in between the base plate (110) and the top plate (120) for providing rigidity and improving load bearing capacity of the multi utility riser (100);
• stress relieving the riser (100) for reducing internal stress from the riser (100);
• grinding the base plate (110) surfaces and the top plate (120) surfaces of the riser (100) for producing smooth, flat and finished surface;
• scraping the grinded surface of the base plate (110) and top plate (120) to produce highly accurate surface finish by removing very small scrapes and chips from riser (100).