Index chuck machining tool

By designing a worm gear linkage and ball bearing support for the indexing chuck machining fixture, the problem of uneven grinding on the side of the indexing chuck was solved, achieving stable rotation and all-round grinding of the indexing chuck, ensuring a smooth workpiece surface.

CN224209683UActive Publication Date: 2026-05-08JIANGSU XINNING INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINNING INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing indexing chuck machining fixtures have limited surface area during grinding, making it difficult to thoroughly and evenly treat the sides of the indexing chuck, which may result in the workpiece being scratched by burrs or not being ground completely.

Method used

A machining fixture for an indexing chuck was designed, including a base plate, a housing, a turntable, a lead screw, a worm gear mechanism, and a polishing roller. The rotation and position adjustment of the indexing chuck are achieved through the linkage of the worm gear and the worm wheel. Combined with the ball bearing support and the fit of the polishing roller, stable grinding of the side of the indexing chuck is achieved.

Benefits of technology

It achieves thorough treatment of the sides of the indexing chuck, maintains the stability of workpiece rotation, and allows adjustment of the grinding position to ensure that the workpiece surface is smooth and burr-free.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of index plate machining, and particularly discloses an index chuck machining tool which comprises a bottom plate and a shell, the shell is fixed to the center of the top end of the bottom plate, a second motor is fixed to the center of the upper portion of the interior of the shell, a rotary disc is movably connected to the center of the upper portion of the exterior of the shell, and the rotary disc is movably connected with a second motor. A flat groove is transversely formed in the rotary disc, and a lead screw is movably connected between the left side and the right side of the inner side of the flat groove. According to the indexing chuck machining tool, clamping rods are fixed to the top ends of threaded blocks, an indexing disc is placed on a rotary disc, a worm is rotated in a cavity after a third motor is started, when the worm is in linkage with a worm gear above to rotate, a lead screw in a flat groove is guided to rotate horizontally, the threaded blocks on the two sides are tightened firstly and then dispersed towards the two sides, and the machining efficiency is improved. And the whole rotary disc and the index plate are controlled by the motor II to rotate, so that the vertical polishing roller polishes the side corners of the index plate, and the problem that the polishing area is limited is solved.
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Description

Technical Field

[0001] This utility model relates to the field of indexing chuck processing technology, specifically to an indexing chuck processing fixture. Background Technology

[0002] A dividing chuck, also known as a dividing plate, has multiple holes and slots on its surface to facilitate the placement of workpieces, thus serving as a clamping device. It is commonly found on CNC lathes. The internal chamber of the dividing chuck can also be equipped with a rotating mechanism to flip and fix the workpiece, allowing it to undergo multiple processing steps.

[0003] To ensure the smoothness of the indexing chuck surface and avoid burrs scratching the workpiece or hands, the indexing chuck needs to be ground and polished. Most of the fixtures for this type of tooling fix the indexing chuck from the outside, with a large contact area, making it difficult to process the sides of the indexing chuck thoroughly and evenly.

[0004] Now, a new type of indexing chuck machining fixture is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an indexing chuck machining fixture to solve the problem of limited grinding area mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chuck machining fixture, comprising a base plate and a housing, wherein the housing is fixed at the center of the top of the base plate, and a second motor is fixed at the center of the upper part of the housing; a rotating disk is movably connected at the center of the upper part of the outer side of the housing, and a flat groove is provided laterally inside the rotating disk; a lead screw is movably connected between the left and right sides of the inner side of the flat groove, and threaded blocks are threadedly connected to the two outer sides of the lead screw; a clamping rod is fixed at the top of the threaded blocks; a cavity is provided on the right side inside the rotating disk, and a worm gear is movably connected between the front and rear sides of the lower part of the cavity; a worm wheel is movably connected between the two upper sides of the cavity; a third motor is installed on the right side of the rear of the outer side of the base plate; and an indexing plate is provided above the rotating disk.

[0007] As a further technical solution of this utility model, the output shaft of the motor is fixedly connected to the worm gear in front, and the worm wheel is meshed with the top of the worm gear.

[0008] As a further technical solution of this utility model, the left side of the worm gear is fixedly connected to the lead screw, and the outer wall of the lead screw matches the inner wall of the threaded block.

[0009] As a further technical solution of this utility model, the top of the output end of the second motor is fixedly connected to the rotary table, and the clamping rod is embedded on both sides of the bottom cavity of the indexing plate.

[0010] As a further technical solution of this utility model, vertical rods are fixed on both sides of the lower part of the shell, and sleeve rods are movably sleeved on the outside of the vertical rods. A ring is horizontally fixed between the top ends of the sleeve rods, and ball bearings are movably embedded on both sides of the top end of the ring. Sleeve blocks are fixed on both sides of the outside of the shell, and fastening bolts are threaded to the front ends of the sleeve blocks. A crossbar is welded to the lower part of the outside of the sleeve rods, and a handle is fixed at the center of the bottom of the crossbar. A slot is provided between the lower part of the shell and the bottom plate.

[0011] As a further technical solution of this utility model, the sleeve rod is embedded in the sleeve block, and the sleeve rod is movably sleeved on the outside of the vertical rod.

[0012] As a further technical solution of this utility model, support rods are fixed on both sides of the top of the base plate, and a top plate is fixed above the support rods. A slide rail is fixed between the two sides of the inner wall of the top plate, and a screw hole is provided laterally at the rear of the slide rail. A slider is movably connected in the slide rail, and a positioning bolt is threaded to the front end of the slider. A motor is installed inside the slider, and a polishing roller is movably connected to the lower surface of the slider.

[0013] As a further technical solution of this utility model, the bottom of the output end of the motor is fixedly connected to the polishing roller, and the polishing roller rotates horizontally below the slider.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the indexing chuck machining fixture not only achieves thorough processing of the side of the indexing chuck and maintains stability when the workpiece rotates, but also achieves adjustment of the grinding position;

[0015] (1) By fixing a clamping rod at the top of the threaded block, the indexing plate is placed on the turntable. After starting the motor three, the worm rotates in the cavity. When the worm rotates the worm wheel above in conjunction with the worm, the screw in the flat groove is guided to rotate horizontally. First, the threaded blocks on both sides are tightened, then dispersed to both sides and stuck in the groove at the bottom of the indexing plate. Then, the rotation of the entire turntable and the indexing plate is controlled by the motor two, so that the vertical polishing roller can polish the side edges of the indexing plate.

[0016] (2) By fixing a ring horizontally between the top ends of the sleeve rod, hold the handle from the slot and push the horizontal bar upward, guide the sleeve rod through the sleeve block along the vertical bars on both sides. At this time, the ring is attached to the lower surface of the indexing plate by the ball bearings. Rotate the fastening bolt to press the sleeve rod in the sleeve block, cooperate with the clamping rod of the indexing plate to provide support for the bottom of the indexing plate when it rotates, and ensure the stability of the workpiece during grinding.

[0017] (3) A polishing roller is movably connected to the lower surface of the slider. According to the diameter of the indexing plate, the slider is moved left and right along the slide rail of the top plate. After aligning with the screw hole, the positioning bolt is screwed in for reinforcement. At this time, the polishing roller is attached to the left or right side of the indexing plate. Then the motor is turned on to drive the polishing roller to rotate in place, and the rotating indexing plate is polished from the side to achieve the adjustment of the polishing position. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a front view cross-sectional structural diagram of the rotary disk of this utility model;

[0020] Figure 3 For the present utility model Figure 2 Enlarged cross-sectional view of a portion of point A in the middle section;

[0021] Figure 4 This is a front view cross-sectional structural diagram of the shell of this utility model.

[0022] In the diagram: 1. Base plate; 2. Housing; 3. Slot; 4. Handle; 5. Vertical rod; 6. Support rod; 7. Indexing plate; 8. Top plate; 9. Slide rail; 10. Screw hole; 11. Slider; 12. Positioning bolt; 13. Motor 1; 14. Polishing roller; 15. Ring; 16. Clamping rod; 17. Turning plate; 18. Threaded block; 19. Motor 2; 20. Flat slot; 21. Cavity; 22. Lead screw; 23. Motor 3; 24. Worm gear; 25. Crossbar; 26. Sleeve rod; 27. Ball bearing; 28. Sleeve block; 29. ​​Fastening bolt; 30. Worm gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4An embodiment of this utility model provides: a chuck machining fixture, including a base plate 1 and a housing 2. The housing 2 is fixed at the center of the top of the base plate 1, and a motor 2 19 is fixed at the center of the upper part of the housing 2. A turntable 17 is movably connected at the center of the upper part of the outer side of the housing 2. A flat groove 20 is arranged horizontally inside the turntable 17. A lead screw 22 is movably connected between the left and right sides of the inner side of the flat groove 20. Threaded blocks 18 are threadedly connected to the two sides of the outer side of the lead screw 22. A clamping rod 16 is fixed at the top of the threaded block 18. A cavity 21 is arranged on the right side inside the turntable 17. A worm gear 30 is movably connected between the front and rear of the lower part of the cavity 21. A worm wheel 24 is movably connected between the two sides of the upper part of the cavity 21. A motor 3 23 is installed on the right side of the rear of the outer side of the base plate 1. An indexing plate 7 is arranged above the turntable 17.

[0025] The output shaft of motor 3 23 is fixedly connected to the worm 30 in front, the worm wheel 24 is meshed with the top of the worm 30, the left side of the worm wheel 24 is fixedly connected to the lead screw 22, the outer wall of the lead screw 22 matches the inner wall of the thread block 18, the top of the output end of motor 2 19 is fixedly connected to the turntable 17, and the clamping rod 16 is embedded on both sides of the bottom cavity of the indexing plate 7.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the indexing plate 7 is placed on the rotary table 17. After starting the motor 3 23, the worm gear 30 is rotated in the cavity 21. When the worm gear 30 rotates the worm wheel 24 above in conjunction with the rotation, the lead screw 22 in the flat groove 20 is guided to rotate horizontally. First, the threaded blocks 18 on both sides are tightened, and then they are dispersed to both sides and locked in the groove at the bottom of the indexing plate 7. Then, the rotation of the entire rotary table 17 and the indexing plate 7 is controlled by the motor 2 19.

[0027] Vertical rods 5 are fixed on both sides of the lower part of the shell 2, and sleeve rods 26 are movably sleeved on the outside of the vertical rods 5. A ring 15 is horizontally fixed between the top ends of the sleeve rods 26, and ball bearings 27 are movably embedded on both sides of the top end of the ring 15. Sleeve blocks 28 are fixed on both sides of the outside of the shell 2, and fastening bolts 29 are threaded to the front end of the sleeve blocks 28. A horizontal rod 25 is welded to the lower part of the outside of the sleeve rods 26, and a handle 4 is fixed at the center of the bottom of the horizontal rod 25. A slot 3 is provided between the lower part of the shell 2 and the bottom plate 1. The sleeve rods 26 are embedded in the sleeve blocks 28 and are movably sleeved on the outside of the vertical rods 5.

[0028] Specifically, such as Figure 1 and Figure 4As shown, grasp the handle 4 from the slot 3 and push the crossbar 25 upward. Guide the sleeve 26 through the sleeve block 28 along the vertical bars 5 on both sides. At this time, the ring 15 is attached to the lower surface of the indexing plate 7 by the ball bearing 27. Rotate the fastening bolt 29 to press the sleeve 26 in the sleeve block 28, and cooperate with the clamping rod 16 of the indexing plate 7 to provide support for its bottom when the indexing plate 7 rotates.

[0029] Support rods 6 are fixed on both sides of the top of the base plate 1, and a top plate 8 is fixed above the support rods 6. A slide rail 9 is fixed between the two sides of the inner wall of the top plate 8, and a screw hole 10 is provided horizontally at the rear of the slide rail 9. A slider 11 is movably connected in the slide rail 9, and a positioning bolt 12 is threadedly connected to the front end of the slider 11. A motor 13 is installed inside the slider 11, and a polishing roller 14 is movably connected to the lower surface of the slider 11. The bottom of the output end of the motor 13 is fixedly connected to the polishing roller 14, and the polishing roller 14 rotates horizontally below the slider 11.

[0030] Specifically, such as Figure 1 As shown, according to the diameter of the indexing plate 7, the slider 11 is moved left and right along the slide rail 9 of the top plate 8. After aligning with the screw hole 10, the positioning bolt 12 is screwed in for reinforcement. At this time, the polishing roller 14 is attached to the left or right side of the indexing plate 7. Then, the motor 13 is turned on and the polishing roller 14 is driven to rotate in place to perform side polishing on the rotating indexing plate 7, so as to avoid the polishing roller 14 being too far away from the indexing plate 7.

[0031] Working principle: When using this utility model, first place the indexing plate 7 on the rotating plate 17. After starting the motor 23, rotate the worm gear 30 in the cavity 21. When the worm gear 30 rotates the worm wheel 24 above in conjunction with the rotation, it guides the lead screw 22 in the flat groove 20 to rotate horizontally. First, tighten the threaded blocks 18 on both sides, then disperse them to both sides and lock them in the groove at the bottom of the indexing plate 7. Then, the motor 19 controls the rotation of the entire rotating plate 17 and the indexing plate 7. Grasp the handle 4 from the slot 3 and push the crossbar 25 upward. Guide the sleeve 26 through the vertical bars 5 on both sides. The ring 15 of the sleeve 28 is now attached to the lower surface of the indexing plate 7 by means of the ball bearing 27. The rotating fastening bolt 29 is used to tighten the sleeve rod 26 in the sleeve 28, which in turn engages with the clamping rod 16 of the indexing plate 7, providing support for the bottom of the indexing plate 7 when it rotates. According to the diameter of the indexing plate 7, the slider 11 is moved left and right along the slide rail 9 of the top plate 8. After aligning with the screw hole 10, the positioning bolt 12 is screwed in for reinforcement. At this time, the polishing roller 14 is attached to the left or right side of the indexing plate 7. Then the motor 13 is turned on and the polishing roller 14 is driven to rotate in place to perform grinding and polishing.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A chuck machining fixture, comprising a base plate (1) and a housing (2), characterized in that: A housing (2) is fixed at the center of the top of the base plate (1), and a motor (19) is fixed at the center of the upper part of the housing (2). A turntable (17) is movably connected at the center of the upper part of the housing (2), and a flat groove (20) is arranged horizontally inside the turntable (17). A lead screw (22) is movably connected between the left and right sides of the flat groove (20), and threaded blocks (18) are threadedly connected to the two sides of the lead screw (22). A clamping rod (16) is fixed at the top of the threaded block (18). A cavity (21) is arranged on the right side inside the turntable (17), and a worm gear (30) is movably connected between the front and back of the lower part of the cavity (21). A worm wheel (24) is movably connected between the two sides of the upper part of the cavity (21). A motor (23) is installed on the right side of the rear of the base plate (1), and an indexing plate (7) is arranged above the turntable (17).

2. The indexing chuck machining fixture according to claim 1, characterized in that: The output shaft of the motor (23) is fixedly connected to the worm (30) in front, and the worm wheel (24) is meshed with the top of the worm (30).

3. The indexing chuck machining fixture according to claim 1, characterized in that: The left side of the worm gear (24) is fixedly connected to the lead screw (22), and the outer wall of the lead screw (22) matches the inner wall of the threaded block (18).

4. The indexing chuck machining fixture according to claim 1, characterized in that: The top of the output end of the second motor (19) is fixedly connected to the turntable (17), and the clamping rod (16) is embedded on both sides of the bottom cavity of the indexing plate (7).

5. The indexing chuck machining fixture according to claim 1, characterized in that: Vertical rods (5) are fixed on both sides of the lower part of the housing (2), and sleeve rods (26) are movably sleeved on the outside of the vertical rods (5). A ring (15) is fixed horizontally between the top ends of the sleeve rods (26), and ball bearings (27) are movably embedded on both sides of the top end of the ring (15). Sleeve blocks (28) are fixed on both sides of the outside of the housing (2), and fastening bolts (29) are threaded to the front end of the sleeve blocks (28). A horizontal rod (25) is welded to the lower part of the outside of the sleeve rods (26), and a handle (4) is fixed at the center of the bottom of the horizontal rod (25). A slot (3) is provided between the lower part of the housing (2) and the bottom plate (1).

6. The indexing chuck machining fixture according to claim 5, characterized in that: The sleeve (26) is embedded in the sleeve block (28), and the sleeve (26) is movably sleeved on the outside of the vertical rod (5).

7. The indexing chuck machining fixture according to claim 1, characterized in that: Support rods (6) are fixed on both sides of the top of the base plate (1), and a top plate (8) is fixed above the support rods (6). A slide rail (9) is fixed between the two sides of the inner wall of the top plate (8), and a screw hole (10) is provided laterally at the rear of the slide rail (9). A slider (11) is movably connected in the slide rail (9), and a positioning bolt (12) is threaded to the front end of the slider (11). A motor (13) is installed inside the slider (11), and a polishing roller (14) is movably connected to the lower surface of the slider (11).

8. The indexing chuck machining fixture according to claim 7, characterized in that: The bottom of the output end of the motor (13) is fixedly connected to the polishing roller (14), and the polishing roller (14) rotates horizontally below the slider (11).