A special-shaped part fixing chuck

By designing a chuck for fixing irregularly shaped parts and adopting structures such as placement slots, moving components, and electric push rods, multi-angle and multi-face clamping of irregularly shaped workpieces can be achieved, solving the problem of unstable clamping of irregularly shaped workpieces by existing chucks and improving clamping stability and safety.

CN115781349BActive Publication Date: 2026-05-12ZHEJIANG HAITUO HUANYU TRANSMISSION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG HAITUO HUANYU TRANSMISSION TECH CO LTD
Filing Date
2022-12-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing fixed chucks lack flexibility in clamping irregularly shaped workpieces and cannot adapt to workpieces with uneven surfaces, resulting in unstable clamping.

Method used

A chuck for fixing irregularly shaped parts was designed. By setting up a placement slot, a moving component, an electric push rod, and multiple clamping blocks, it can achieve multi-angle and multi-face clamping of irregularly shaped parts. Bolts and limiting structures are used to improve clamping stability.

Benefits of technology

It improves the clamping stability of irregularly shaped parts, enhances the practicality of the chuck, and avoids unstable clamping and safety accidents.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115781349B_ABST
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Abstract

The application provides a special-shaped part fixing chuck, which comprises a bearing plate, a fixing column fixedly installed on the bearing plate, two installation holes formed in the outer circular wall surface of the fixing column and corresponding to each other, a placing groove formed in the top surface of the fixing column, two containing grooves formed in the top surface of the fixing column and communicated with the placing groove, and a moving assembly arranged on the inner circular wall surface of the placing groove and used for moving a clamp. The first clamping block and the second clamping block can clamp the special-shaped part at different angles through the placing groove, so that the special-shaped part is clamped twice by the fixing block driven by the electric push rod, and the special-shaped part is clamped more stably in the placing groove. The first sliding block can move in the first through hole under the action of the first clamping ring, so that the angle can be adjusted according to the shape of the special-shaped part.
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Description

Technical Field

[0001] This invention relates to the field of fixed chucks, and more particularly to a fixed chuck for irregularly shaped components. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for construction or inspection. It is also called a clamp. In a broader sense, any device used to quickly, conveniently and safely install a workpiece in any step of the process can be called a fixture.

[0003] According to Chinese Patent Application No. CN202021837146.9, a workpiece fixing chuck structure includes a three-jaw chuck. The top of the three-jaw chuck has three first sliding grooves, and a jaw is slidably installed in each of the three first sliding grooves. One end of each of the three jaws is fixedly connected to a fixing piece. The top of each of the three jaws has a second sliding groove, and a first fixing slider and a second fixing slider are slidably installed in each of the three second sliding grooves.

[0004] Irregularly shaped chucks facilitate the fixed installation of auxiliary positioning components of different sizes, making it easy to clamp and fix irregularly shaped workpieces of different sizes. However, the above solution still has the following disadvantages: the flexibility of this fixing chuck is not good, it can only clamp and fix workpieces with fixed shapes, which has certain limitations. The clamping components cannot be flexibly adjusted for workpieces with uneven surfaces, which can easily lead to unstable clamping. Therefore, we propose an irregularly shaped component fixing chuck. Summary of the Invention

[0005] The present invention aims to provide a fixed chuck for irregularly shaped parts that overcomes or at least partially solves the above-mentioned problems. This invention addresses the limitations of fixed chucks, which are limited to clamping and fixing workpieces with fixed shapes and cannot flexibly adjust the clamping components for workpieces with uneven surfaces, thus easily leading to unstable clamping.

[0006] To achieve the above objectives, the technical solution of the present invention is specifically implemented as follows:

[0007] The present invention provides a chuck for fixing irregularly shaped parts, comprising: a load-bearing plate, a fixing post fixedly mounted on the load-bearing plate, two mounting holes being formed on the outer circular wall of the fixing post, the two mounting holes being opposite each other, a placement groove being formed on the top surface of the fixing post, two receiving grooves being formed on the top surface of the fixing post, the receiving grooves being connected to the placement groove, and a moving component being disposed on the inner circular wall of the placement groove for moving the clamp.

[0008] By adopting the above technical solution and setting a placement slot, the first clamping block and the second clamping block can clamp the irregular part at different angles. Then, the electric push rod drives the fixing block to clamp the irregular part a second time, thereby making the irregular part more stably clamped inside the placement slot.

[0009] As a further embodiment of the present invention, the movable component includes: a first through hole, the first through hole being formed on the inner circular wall of the placement groove, a first snap-fit ​​groove being formed on the inner bottom surface of the first through hole, a first sliding block being provided on the inner wall of the first through hole, a first threaded hole being formed on one side of the first sliding block, a first bolt being threadedly connected to the inner circular wall of the first threaded hole, a first clamping block being fixedly installed at one end of the first bolt, and a first snap-fit ​​ring being fixedly installed on the bottom surface of the first sliding block, the first snap-fit ​​ring being detachably snapped into the first snap-fit ​​groove.

[0010] By adopting the above technical solution, and by setting a first sliding block, the first sliding block can move inside the first through hole under the action of the first locking ring, thereby adjusting the angle for the shape of the irregular part, thus improving the stability of clamping and the practicality of the fixed chuck.

[0011] As a further embodiment of the present invention, the top surface of the fixing column is provided with a first fixing groove, which is connected to the first through hole. The outer circular wall surface of the fixing column is provided with a first mounting groove, which is connected to the first fixing groove. The inner circular wall surface of the first fixing groove is provided with a first limiting block. The first positioning hole is provided on both sides of the first limiting block. The first positioning hole is movably fitted with the first bolt. The bottom surface of the first limiting block is provided with a first limiting groove, which is connected to the first positioning hole. The first limiting groove is detachably snapped into the fixing column.

[0012] By adopting the above technical solution, by setting a first bolt, which can cooperate with a second bolt, the first clamping block and the second clamping block can clamp the irregular surface of the irregular part, effectively making up for the limitation of the two fixing blocks being unstable in clamping the irregular part.

[0013] As a further embodiment of the present invention, the inner circular wall of the placement groove is provided with a second through hole, the inner bottom surface of the second through hole is provided with a second snap-fit ​​groove, the inner wall of the second through hole is provided with a second sliding block, one side of the second sliding block is provided with a second threaded hole, the inner circular wall of the second threaded hole is threaded with a second bolt, one end of the second bolt is fixedly installed with a second clamping block, the bottom surface of the second sliding block is fixedly installed with a second snap-fit ​​ring, and the second snap-fit ​​ring is detachably snapped into the second snap-fit ​​groove.

[0014] By adopting the above technical solution, by setting a second locking groove, the second locking ring can be locked in place through the second locking groove, thereby limiting the second sliding block and preventing the second sliding block from falling off. This allows the second sliding block to slide smoothly inside the second through hole, effectively reducing the frictional resistance between the second sliding block and the inner wall of the second through hole.

[0015] As a further embodiment of the present invention, the top surface of the fixing column is provided with a second fixing groove, the second fixing groove is connected to the second through hole, the outer circular wall surface of the fixing column is provided with a second mounting groove, the second mounting groove is connected to the second fixing groove, and the inner circular wall surface of the second fixing groove is provided with a second limiting block.

[0016] By adopting the above technical solution, by setting a second mounting groove, the second bolt can be limited. After the irregular part is fixed for the first time inside the placement groove by the fixing block, the uneven surface of the irregular part can be clamped by the first clamping block and the second clamping block, thereby improving the stability of clamping the irregular part.

[0017] As a further embodiment of the present invention, the second limiting block has a second positioning hole on both sides, a second limiting groove on the bottom surface of the second limiting block, the second positioning hole and the second limiting groove are connected, and the second limiting block is detachably snapped into the fixing post.

[0018] By adopting the above technical solution, by setting a second limiting groove, the second limiting block can move on the inner circular wall of the second fixed groove, thereby rotating the second bolt to clamp the outer surface of the irregular part through the second clamping block.

[0019] As a further embodiment of the present invention, an electric push rod is fixedly sleeved on the inner circular wall of the mounting hole, a fixing block is fixedly installed at one end of the telescopic rod of the electric push rod, a mating groove is opened on one side of the fixing block, and a rubber pad is fixedly installed on the inner circular wall of the mating groove.

[0020] By adopting the above technical solution and setting up an electric push rod, irregularly shaped parts can be clamped. The auxiliary moving component can clamp irregularly shaped parts from all directions, which improves the stability of clamping irregularly shaped parts and avoids the occurrence of safety accidents.

[0021] As a further embodiment of the present invention, a snap-fit ​​block is fixedly installed on both sides of the fixing block, and a sliding groove is provided on both sides of the inner wall of the receiving groove, wherein the sliding groove is detachably snap-fitted with the snap-fit ​​block.

[0022] By adopting the above technical solution, and by setting a snap-fit ​​block, the snap-fit ​​block can limit the positioning of the fixing block, so that the fixing block can clamp and fix the irregular part under the drive of the electric push rod, thus avoiding damage to the irregular part.

[0023] This invention provides a chuck for fixing irregularly shaped parts, which has the following advantages:

[0024] By setting up a movable component, the stability of clamping irregularly shaped parts can be effectively improved, making the irregularly shaped parts more stable inside the placement slot, thus facilitating the smooth progress of subsequent work and improving the work efficiency of the staff. The first sliding block can move inside the first through hole under the action of the first locking ring, thereby adjusting the angle according to the shape of the irregularly shaped parts, thus improving the clamping stability and the practicality of the fixed chuck. By setting up a first bolt, which can cooperate with the second bolt, the first clamping block and the second clamping block can clamp the irregularly shaped parts on uneven surfaces, effectively making up for the limitations of the two fixed blocks in clamping irregularly shaped parts.

[0025] By setting a placement groove, the first clamping block and the second clamping block can clamp the irregular part at different angles. Then, the electric push rod drives the fixing block to clamp the irregular part a second time, making the irregular part more stable inside the placement groove. By setting a second snap-fit ​​groove, the second snap-fit ​​ring can be snapped in, thereby limiting the second sliding block and preventing it from falling off. This allows the second sliding block to slide smoothly inside the second through hole, effectively reducing the frictional resistance between the second sliding block and the inner wall of the second through hole.

[0026] By setting a second mounting groove, the second bolt can be limited. After the irregular part is fixed for the first time inside the placement groove by the fixing block, the uneven surface of the irregular part can be clamped by the first clamping block and the second clamping block, thereby improving the stability of clamping the irregular part. By setting a second limiting groove, the second limiting block can move on the inner circular wall of the second fixing groove, thereby rotating the second bolt and clamping the outer surface of the irregular part by the second clamping block.

[0027] By incorporating an electric push rod, irregularly shaped parts can be clamped. The auxiliary moving component provides omnidirectional clamping of irregularly shaped parts, improving the stability of clamping and preventing safety accidents. By incorporating a locking block, the fixing block can be limited, allowing the fixing block to clamp and fix the irregularly shaped parts under the action of the electric push rod, thus preventing damage to the irregularly shaped parts. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the split structure provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the fixing block structure provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the first sliding block structure provided in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the first limiting block structure provided in an embodiment of the present invention;

[0034] Figure 6 for Figure 2 A magnified schematic diagram of a portion of the structure of A in the diagram;

[0035] Figure 7 for Figure 2 A magnified schematic diagram of a local structure of B.

[0036] In the diagram: 1. Load-bearing plate; 2. Fixed column; 3. Mounting hole; 4. Placement groove; 5. Receiving groove; 6. First through hole; 7. First snap-fit ​​groove; 8. First sliding block; 9. First threaded hole; 10. First bolt; 11. First clamping block; 12. First snap-fit ​​ring; 13. First fixing groove; 14. First mounting groove; 15. First limiting block; 16. First positioning hole; 17. First limiting groove; 18. Second through hole; 19. Second snap-fit ​​groove; 20. Second sliding block; 21. Second threaded hole; 22. Second bolt; 23. Second clamping block; 24. Second snap-fit ​​ring; 25. Second fixing groove; 26. Second mounting groove; 27. Second limiting block; 28. Second positioning hole; 29. ​​Second limiting groove; 30. Electric push rod; 32. Fixing block; 33. Connecting groove; 34. Rubber pad; 35. Snap-fit ​​block; 36. Sliding groove. Detailed Implementation

[0037] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 This invention provides a chuck for fixing irregularly shaped parts, including a load-bearing plate 1. A fixing post 2 is fixedly installed on the load-bearing plate 1. Two mounting holes 3 are formed on the outer circular wall of the fixing post 2, corresponding to each other. A placement groove 4 is formed on the top surface of the fixing post 2, and two receiving grooves 5 are formed on the top surface of the fixing post 2, communicating with the placement groove 4. A moving component is provided on the inner circular wall of the placement groove 4 for moving the clamp. By providing the placement groove 4, the first clamping block 11 and the second clamping block 23 can clamp the irregularly shaped part at different angles. Then, the electric push rod 30 drives the fixing block 32 to perform a secondary clamping of the irregularly shaped part, making the irregularly shaped part more stably clamped inside the placement groove 4. The moving component includes a first through hole 6, which is formed in... The inner circular wall of the placement slot 4 has a first snap-fit ​​groove 7 on the bottom surface of the first through hole 6. A first sliding block 8 is provided on the inner wall of the first through hole 6. A first threaded hole 9 is provided on one side of the first sliding block 8. A first bolt 10 is threadedly connected to the inner circular wall of the first threaded hole 9. The first bolt 10 is an existing structure and will not be described in detail here. A first clamping block 11 is fixedly installed at one end of the first bolt 10. A first snap-fit ​​ring 12 is fixedly installed on the bottom surface of the first sliding block 8. The first snap-fit ​​ring 12 is detachably snapped into the first snap-fit ​​groove 7. By setting the first sliding block 8, the first sliding block 8 can move inside the first through hole 6 under the force of the first snap-fit ​​ring 12, thereby adjusting the angle for the shape of the irregular part, thereby improving the clamping stability and the practicality of the fixed chuck.

[0039] See Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7The top surface of the fixing post 2 has a first fixing groove 13, which communicates with the first through hole 6. The outer circular wall of the fixing post 2 has a first mounting groove 14, which communicates with the first fixing groove 13. The inner circular wall of the first fixing groove 13 has a first limiting block 15. Both sides of the first limiting block 15 have first positioning holes 16, which are movably fitted with the first bolt 10. The bottom surface of the first limiting block 15 has a first limiting groove 17, which communicates with the first positioning hole 16. The first limiting groove 17 is detachably snapped into the fixing post 2. A bolt 10 is used to engage with a second bolt 22, allowing the first clamping block 11 and the second clamping block 23 to clamp the irregularly shaped parts, effectively overcoming the limitations of the two fixing blocks 32 in clamping irregularly shaped parts. A second through hole 18 is provided on the inner circular wall of the placement groove 4, and a second snap-fit ​​groove 19 is provided on the bottom surface of the inner side of the second through hole 18. A second sliding block 20 is provided on the inner wall of the second through hole 18, and a second threaded hole 21 is provided on one side of the second sliding block 20. A second bolt 22 is threaded onto the inner circular wall of the second threaded hole 21. The second bolt 22 is an existing bolt. The structure is not described in detail here. A second clamping block 23 is fixedly installed at one end of the second bolt 22. A second snap-fit ​​ring 24 is fixedly installed on the bottom surface of the second sliding block 20. The second snap-fit ​​ring 24 is detachably snapped into the second snap-fit ​​groove 19. By setting the second snap-fit ​​groove 19, the second snap-fit ​​ring 24 can be snapped in place, thereby limiting the second sliding block 20 and preventing it from falling out. This allows the second sliding block 20 to slide smoothly inside the second through hole 18, effectively reducing the frictional resistance between the second sliding block 20 and the inner wall of the second through hole 18. The top surface of the fixing column 2... A second fixing groove 25 is provided, which is connected to the second through hole 18. A second mounting groove 26 is provided on the outer circular wall of the fixing column 2, which is connected to the second fixing groove 25. A second limiting block 27 is provided on the inner circular wall of the second fixing groove 25. By providing the second mounting groove 26, the second bolt 22 can be limited. After the irregular part is fixed for the first time in the placement groove 4 by the fixing block 32, the uneven surface of the irregular part can be clamped by the first clamping block 11 and the second clamping block 23, thereby improving the stability of the irregular part clamping.

[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7The second limiting block 27 has second positioning holes 28 on both sides and a second limiting groove 29 on its bottom surface. The second positioning holes 28 and the second limiting groove 29 are connected. The second limiting block 27 is detachably snapped into the fixing post 2. By setting the second limiting groove 29, the second limiting block 27 can move on the inner circular wall of the second fixing groove 25, thereby rotating the second bolt 22 to clamp the outer surface of the irregular part through the second clamping block 23. The inner circular wall of the mounting hole 3 is fixedly fitted with an electric push rod 30. One end of the telescopic rod of the electric push rod 30 is fixedly installed with a fixing block 32. A docking groove 33 is opened on one side of the fixing block 32. The inner circular wall of the docking groove 33 is fixedly fitted with a fixing block 32. The device is equipped with a rubber pad 34. The electric push rod 30 and the rubber pad 34 are existing structures and will not be described in detail here. By setting the electric push rod 30, the irregular part can be clamped. The auxiliary moving component clamps the irregular part from all directions, which improves the stability of the irregular part clamping and avoids the occurrence of safety accidents. The fixing block 32 is fixedly installed on both sides with snap-fit ​​blocks 35. The inner wall of the receiving groove 5 is provided with sliding grooves 36 on both sides. The sliding grooves 36 and snap-fit ​​blocks 35 are detachably snapped together. By setting the snap-fit ​​blocks 35, the fixing block 32 can be limited, so that the fixing block 32 clamps and fixes the irregular part under the drive of the electric push rod 30, avoiding damage to the irregular part.

[0041] Working principle: Please refer to Figures 1-7 As shown, during use, the operator can first reset the electric push rod 30, then rotate the first bolt 10 and the second bolt 22 to reset them, so that one side of the first clamping block 11 is in contact with one side of the first sliding block 8, and one side of the second clamping block 23 is in contact with one side of the second sliding block 20. At this time, the irregular part to be processed can be placed inside the placement groove 4. Then, the electric push rod 30 is activated. Under the force of the two electric push rods 30, the two fixing blocks 32 will move inside the receiving groove 5, thereby clamping the irregular part for the first time. Then, the first bolt 10 and the second bolt 22 are rotated, so that the first bolt 10 and the second bolt 22 are in contact with one side of the first sliding block 8. The force of bolt 22 will drive the first clamping block 11 and the second clamping block 23 to move. By setting the second mounting groove 26, the second bolt 22 can be limited. After the irregular part is fixed for the first time in the placement groove 4 by the fixing block 32, the uneven surface of the irregular part can be clamped by the first clamping block 11 and the second clamping block 23, thereby improving the stability of the irregular part clamping. The second limiting groove 29 can make the second limiting block 27 move on the inner circular wall of the second fixing groove 25, thereby rotating the second bolt 22 to clamp the outer surface of the irregular part through the second clamping block 23.

[0042] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A chuck for fixing irregularly shaped parts, characterized in that, include: A load-bearing plate (1) has a fixed column (2) fixedly installed on its top surface. The outer circular wall of the fixed column (2) has two mounting holes (3) that correspond to each other. The top surface of the fixed column (2) has a placement groove (4) and two receiving grooves (5) that are connected to the placement groove (4). An electric push rod (30) is fixedly sleeved on the inner circular wall of the mounting hole (3). A fixing block (32) is fixedly installed at one end of the telescopic rod of the electric push rod (30). A docking groove (33) is opened on one side of the fixing block (32). A rubber pad (34) is fixedly installed on the inner circular wall of the docking groove (33). Both sides of the fixing block (32) are fixedly installed with snap-fit ​​blocks (35), and both sides of the inner wall of the receiving groove (5) are provided with sliding grooves (36), and the sliding grooves (36) are detachably snap-fitted with the snap-fit ​​blocks (35). A movable component is disposed on the inner circular wall of the placement groove (4) for moving the clamp. The movable component includes a first through hole (6), which is opened on the inner circular wall of the placement groove (4). A first snap-fit ​​groove (7) is opened on the inner bottom surface of the first through hole (6). A first sliding block (8) is provided on the inner wall of the first through hole (6). A first threaded hole (9) is opened on one side of the first sliding block (8). A first bolt (10) is threadedly connected to the inner circular wall of the first threaded hole (9). A first clamping block (11) is fixedly installed at one end of the first bolt (10). A first snap-fit ​​ring (12) is fixedly installed on the bottom surface of the first sliding block (8). The first snap-fit ​​ring (12) is detachably snapped into the first snap-fit ​​groove (7). The inner circular wall of the placement groove (4) is provided with a second through hole (18), the bottom surface of the second through hole (18) is provided with a second snap-fit ​​groove (19), the inner wall of the second through hole (18) is provided with a second sliding block (20), the side of the second sliding block (20) is provided with a second threaded hole (21), the inner circular wall of the second threaded hole (21) is threaded with a second bolt (22), one end of the second bolt (22) is fixedly installed with a second clamping block (23), the bottom surface of the second sliding block (20) is fixedly installed with a second snap-fit ​​ring (24), and the second snap-fit ​​ring (24) is detachably snap-fitted with the second snap-fit ​​groove (19); The top surface of the fixed column (2) is provided with a first fixing groove (13), which is connected to the first through hole (6). The outer circular wall of the fixed column (2) is provided with a first mounting groove (14), which is connected to the first fixing groove (13). The inner circular wall of the first fixing groove (13) is provided with a first limiting block (15). The first positioning hole (16) is provided on both sides of the first limiting block (15). The first positioning hole (16) is movably sleeved with the first bolt (10). The bottom surface of the first limiting block (15) is provided with a first limiting groove (17), which is connected to the first positioning hole (16). The first limiting groove (17) is detachably snapped into the fixed column (2).

2. The irregularly shaped component fixing chuck according to claim 1, characterized in that, The top surface of the fixed column (2) is provided with a second fixing groove (25), which is connected to the second through hole (18). The outer circular wall surface of the fixed column (2) is provided with a second mounting groove (26), which is connected to the second fixing groove (25). The inner circular wall surface of the second fixing groove (25) is provided with a second limiting block (27).

3. The irregularly shaped component fixing chuck according to claim 2, characterized in that, The second limiting block (27) has a second positioning hole (28) on both sides, and a second limiting groove (29) on the bottom surface of the second limiting block (27). The second positioning hole (28) is connected to the second limiting groove (29), and the second limiting block (27) is detachably snapped into the fixing post (2).