Pin wheel housing pin wheel hole machining clamp
By designing a combined structure of clamping disc, threaded disc, and adjustable clamping block, the problems of unstable clamping and inconvenient adjustment of traditional clamps are solved, achieving stable clamping and flexible adjustment of the needle tooth shell and needle tooth hole, thus improving machining accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional needle tooth shell and needle tooth hole machining fixtures are unstable in clamping and inconvenient to adjust, making it difficult to adapt to the machining needs of workpieces of different sizes and shapes, thus affecting machining accuracy and efficiency.
A clamping structure including a clamping disc, a threaded disc, a threaded block, a clamping block, and an adjustable clamping block is designed. Through the combination of threaded connection and adjustable clamping block, a stable clamping and flexible adjustment are achieved. The clamping stability is enhanced by using components such as a drive device and a flip-locking buckle.
It achieves stable clamping and flexible adjustment of the needle tooth shell and needle tooth hole, improves machining accuracy and efficiency, and ensures the stability of the workpiece during the machining process.
Smart Images
Figure CN224238842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eccentric shaft clamping technology, specifically a needle tooth shell needle tooth hole machining fixture. Background Technology
[0002] In the field of workpiece machining, especially for the machining of pin teeth and pin holes, the design and use of fixtures are crucial. Traditional fixtures often have problems such as unstable clamping and inconvenient adjustment, resulting in low machining accuracy and low efficiency. Especially when machining precision workpieces such as pin teeth, the stability and adjustability of the fixture are directly related to the machining quality and production efficiency.
[0003] Most of the needle tooth shell and needle tooth hole machining fixtures on the market adopt a fixed clamping method, which is difficult to adapt to the machining needs of workpieces of different sizes and shapes. At the same time, the clamping force and stability of the fixture are also difficult to guarantee, which can easily cause the workpiece to shift or deform during the machining process, thereby affecting the machining accuracy and workpiece quality.
[0004] Therefore, in order to address the above problems, this utility model proposes a new type of fixture for machining needle teeth and needle holes, which provides stable clamping and convenient adjustment. Utility Model Content
[0005] The purpose of this utility model is to provide a fixture for machining needle teeth and needle holes to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixture for machining needle teeth and needle holes in a needle-tooth shell, comprising:
[0007] The clamping plate has its bottom surface fixedly connected to the top surface of the driving device, the base of the driving device fixedly connected to the top surface of the workbench, and the output shaft of the driving device fixedly connected to the bottom surface of the threaded plate. The threaded plate is located between the upper and lower plates of the clamping plate.
[0008] The top threaded surface of the threaded disc engages with the bottom threaded groove of the threaded block. The surface of the threaded block is movably connected to the guide groove, which is located on the top plate surface of the clamping disc. The top surface of the threaded block is fixedly connected to the bottom surface of the clamping block, and the surface of the clamping block is provided with adjustable clamping blocks.
[0009] Preferably, the width of the guide groove is equal to the width of the threaded block, and the guide groove is configured in four groups, with the four groups of guide grooves arranged in a ring along the central axis of the clamping disc.
[0010] Preferably, a through - hole is formed on the surface of the clamping block. A rectangular block is movably connected to the surface of the through - hole. Two ends of the rectangular block are respectively fixedly connected to the inner surface of the adjustable clamping block and the surface of the reinforcing block. The top surface of the reinforcing block is fixedly connected to the bottom surface of the adjustable clamping block. The reinforcing block is movably connected within a cavity. The cavity is formed within the clamping block. The inner wall of the adjustable clamping block is closely attached to the surface of the clamping block. A card slot is formed on the surface of the cavity. A plug lock is clamped on the surface of the card slot. The surface of the plug lock is movably connected within a spring cavity. The spring cavity is formed within the reinforcing block. A compression spring is arranged on the surface of the spring cavity.
[0011] Preferably, a stable frame body is fixedly connected to the surface of the cavity. A lock rod is movably connected within the two side plates of the stable frame body. The surface of the lock rod is inserted into a lock hole. The lock hole is formed on the surface of the reinforcing block. A return spring is sleeved on the surface of the lock rod. The return spring is arranged on the left side of the extrusion block. An extrusion block is fixedly connected to the surface of the lock rod. A limiting slider is fixedly connected to the top surface of the extrusion block. The surface of the limiting slider is movably connected within a limiting groove. The limiting groove is formed on the inner top surface of the stable frame body. The surface of the extrusion block abuts against the end face of the flipping buckle. A support rod is sleeved within the flipping buckle. The end of the support rod is fixedly connected to the surface of a notch. The notch is formed on the side plate surface of the stable frame body.
[0012] Preferably, the card slot has an arc - shaped groove structure. The central axes of the card slot and the lock hole coincide in the same plane. The lock hole is a cylindrical groove. The radius size of the lock hole is equal to the radius of the lock rod. There are three groups of lock holes, and the three groups of lock holes are evenly distributed on the surface of the reinforcing block.
[0013] Preferably, the cross - section of the stable frame body has a "匚" - shaped structure. The width size of the notch formed on the side plate surface of the stable frame body is equal to the flipping buckle.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By starting the driving device, the threaded disc rotates within the clamping disc. The threaded surface of the threaded disc meshes with the bottom threaded groove of the threaded block. Therefore, the rotation of the threaded disc causes the threaded block to move along the surface of the guide groove. Thus, the clamping block fixed to the top of the threaded block moves on the top surface of the clamping disc. Therefore, the workpiece surface on the top of the clamping disc is clamped and stabilized by the clamping block and the adjustable clamping block. Pulling up the adjustable clamping block with force makes the plug lock change the inserted position of the card slot. Thus, the position of the adjustable clamping block on the surface of the clamping block is adjusted. The inner surface of the adjustable clamping block is closely attached to the surface of the clamping block. Thus, the stability of the adjustable clamping block on the surface of the clamping block is enhanced. The extrusion block drives the lock rod to be inserted into the lock hole. Therefore, the position of the reinforcing block within the clamping block is locked. Thus, a secondary locking effect is achieved on the surface of the adjustable clamping block within the clamping block.
[0015] A processing fixture for the pin teeth holes of a pin gear housing proposed by the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a cross-sectional schematic diagram of the clamping disc structure of this utility model;
[0018] Figure 3 A schematic diagram showing the positional relationship between the clamping block and the adjustable clamping block;
[0019] Figure 4 A cross-sectional schematic diagram showing the positional relationship between the clamping block and the adjustable clamping block;
[0020] Figure 5 This is a schematic cross-sectional view of the clamping block of this utility model.
[0021] Figure 6 This is a schematic diagram showing the positional relationship between the adjustable clamping block and the reinforcing block.
[0022] In the diagram: 1. Workbench; 2. Drive unit; 3. Clamping disc; 4. Guide groove; 5. Clamping block; 6. Threaded disc; 7. Threaded block; 8. Adjustable clamping block; 9. Cavity; 10. Reinforcing block; 11. Slot; 12. Lock; 13. Spring cavity; 14. Compression spring; 15. Limiting slider; 16. Through port; 17. Rectangular block; 18. Locking hole; 19. Locking rod; 20. Stable frame; 21. Return spring; 22. Extrusion block; 23. Notch; 24. Flip buckle; 25. Limiting groove. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Example 1, please refer to Figures 1-6 This utility model provides three technical solutions: a fixture for machining needle teeth and needle holes, comprising:
[0025] The bottom surface of the clamping plate 3 is fixedly connected to the top surface of the drive device 2, the base of the drive device 2 is fixedly connected to the top surface of the workbench 1, and the output shaft of the drive device 2 is fixedly connected to the bottom surface of the threaded plate 6. The threaded plate 6 is located between the upper and lower plates of the clamping plate 3.
[0026] The top threaded surface of the threaded disc 6 engages with the bottom threaded groove of the threaded block 7. The surface of the threaded block 7 is movably connected to the guide groove 4, which is opened on the top plate surface of the clamping disc 3. The top surface of the threaded block 7 is fixedly connected to the bottom surface of the clamping block 5, and the surface of the clamping block 5 is provided with an adjustable clamping block 8.
[0027] By activating the drive device 2, the threaded disc 6 rotates within the clamping disc 3, causing the threaded surface of the threaded disc 6 to engage with the bottom threaded groove of the threaded block 7. Thus, the rotation of the threaded disc 6 causes the threaded block 7 to move along the surface of the guide groove 4, thereby moving the clamping block 5 fixed at the top of the threaded block 7 to the top surface of the clamping disc 3. Therefore, the workpiece surface at the top of the clamping disc 3 is clamped and stabilized by the clamping block 5 and the adjustable clamping block 8.
[0028] Example 2, see attached document Figures 1 to 6 Based on Embodiment 1, in order to adjust the position of the clamping block 8 on the surface of the clamping block 5, the surface of the clamping block 5 is provided with an opening 16. A rectangular block 17 is movably connected to the surface of the opening 16. The two ends of the rectangular block 17 are respectively fixedly connected to the inner surface of the adjustable clamping block 8 and the surface of the reinforcing block 10. The top surface of the reinforcing block 10 is fixedly connected to the bottom surface of the adjustable clamping block 8. The reinforcing block 10 is movably connected to the cavity 9. The cavity 9 is opened in the clamping block 5. The inner wall of the adjustable clamping block 8 is in close contact with the surface of the clamping block 5. A slot 11 is provided on the surface of the cavity 9. A lock 12 is engaged on the surface of the slot 11. The surface of the lock 12 is movably connected to the spring cavity 13. The spring cavity 13 is opened in the reinforcing block 10. A compression spring 14 is provided on the surface of the spring cavity 13.
[0029] The end of the spring-loaded locking 12 of the compression spring 14 is securely inserted into the surface of the slot 11, so the adjustable clamping block 8 is securely locked on the surface of the clamping block 5. When it is necessary to clamp workpieces of different sizes on the top of the clamping plate 3, the adjustable clamping block 8 is pulled upward to change the position of the locking 12 in the slot 11, thereby adjusting the position of the adjustable clamping block 8 on the surface of the clamping block 5. The inner surface of the adjustable clamping block 8 is in close contact with the surface of the clamping block 5, thereby strengthening the stability of the adjustable clamping block 8 on the surface of the clamping block 5. At the same time, the rectangular block 17 has a limited movement on the surface of the through 16.
[0030] Example 3, refer to Appendix Figures 1 to 6Based on Embodiment 2, in order to adjust the position and height of the adjustable clamping block 8 on the surface of the clamping block 5 according to the workpiece, a stabilizing frame 20 is fixedly connected to the surface of the cavity 9. Locking rods 19 are movably connected to the two side plates of the stabilizing frame 20. The surface of the locking rods 19 is inserted into the locking holes 18, which are opened on the surface of the reinforcing block 10. A return spring 21 is sleeved on the surface of the locking rods 19. The return spring 21 is located on the left side of the pressing block 22. The pressing block 22 is fixedly connected to the surface of the locking rods 19. A limiting slider 15 is fixedly connected to the top surface of the pressing block 22. The surface of the limiting slider 15 is movably connected to the limiting groove 25, which is opened on the inner top surface of the stabilizing frame 20. The surface of the pressing block 22 abuts against the end face of the flip buckle 24. A support rod is sleeved inside the flip buckle 24. The end of the support rod is fixedly connected to the surface of the notch 23, which is opened on the side plate surface of the stabilizing frame 20.
[0031] When the buckle 24 is flipped vertically by turning the knob, it can move the pressing block 22 within the stable frame 20. At the same time, the limiting slider 15 limits the movement of the pressing block 22. The pressing block 22 drives the locking rod 19 to be inserted into the locking hole 18. Therefore, the position of the reinforcing block 10 within the clamping block 5 is locked, thus providing a secondary locking effect on the surface of the adjustable clamping block 8 on the clamping block 5, further enhancing the stability of the adjustable clamping block 8 on the surface of the clamping block 5. Conversely, when the buckle 24 is flipped horizontally, the elastic force of the return spring 21 pushes the pressing block 22 to the right, thereby disengaging the locking rod 19 from the surface of the locking hole 18. The position height of the adjustable clamping block 8 on the surface of the clamping block 5 can be adjusted according to the workpiece.
[0032] In actual use, by activating the drive device 2, the threaded disc 6 rotates within the clamping disc 3, engaging the threaded surface of the threaded disc 6 with the bottom threaded groove of the threaded block 7. Therefore, the rotation of the threaded disc 6 causes the threaded block 7 to move along the surface of the guide groove 4, thereby moving the clamping block 5, which is fixed at the top of the threaded block 7, to the top surface of the clamping disc 3. Thus, the clamping block 5 and the adjustable clamping block 8 securely clamp the workpiece surface at the top of the clamping disc 3. Pulling the adjustable clamping block 8 upwards causes the locking 12 to change the position of the insertion slot 11, thereby adjusting the position of the adjustable clamping block 8 on the surface of the clamping block 5. The inner surface of the adjustable clamping block 8 is tightly pressed against the surface of the clamping block 5, thus strengthening the position of the adjustable clamping block 8 on the surface of the clamping block 5. The stability is ensured by rotating the buckle 24 vertically, which allows the pressing block 22 to move within the stable frame 20. At the same time, the limiting slider 15 limits the movement of the pressing block 22. The pressing block 22 drives the locking rod 19 to insert into the locking hole 18, thus locking the position of the reinforcing block 10 within the clamping block 5. This provides a secondary locking effect on the adjustable clamping block 8 on the surface of the clamping block 5, further enhancing the stability of the adjustable clamping block 8 on the surface of the clamping block 5. Conversely, when the buckle 24 is rotated horizontally, the spring force of the return spring 21 pushes the pressing block 22 to the right, thereby disengaging the locking rod 19 from the surface of the locking hole 18. The position height of the adjustable clamping block 8 on the surface of the clamping block 5 can be adjusted according to the workpiece.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixture for machining needle-tooth holes in a needle-tooth shell, characterized in that, include: The clamping plate (3) has its bottom surface fixedly connected to the top surface of the driving device (2), the base of the driving device (2) is fixedly connected to the top surface of the workbench (1), and the output shaft of the driving device (2) is fixedly connected to the bottom surface of the threaded plate (6). The threaded plate (6) is located between the upper and lower plates of the clamping plate (3). The top threaded surface of the threaded disc (6) engages with the bottom threaded groove of the threaded block (7). The surface of the threaded block (7) is movably connected to the guide groove (4). The guide groove (4) is opened on the top plate surface of the clamping disc (3). The top surface of the threaded block (7) is fixedly connected to the bottom surface of the clamping block (5). The surface of the clamping block (5) is provided with an adjustable clamping block (8).
2. The needle tooth shell needle tooth hole machining fixture according to claim 1, characterized in that: The width of the guide groove (4) is equal to the width of the threaded block (7). The guide groove (4) is set in four groups, and the four groups of guide grooves (4) are arranged in a ring along the central axis of the clamping disk (3).
3. The needle tooth shell needle tooth hole machining fixture according to claim 1, characterized in that: The clamping block (5) has an opening (16) on its surface. A rectangular block (17) is movably connected to the surface of the opening (16). The two ends of the rectangular block (17) are fixedly connected to the inner surface of the adjustable clamping block (8) and the surface of the reinforcing block (10), respectively. The top surface of the reinforcing block (10) is fixedly connected to the bottom surface of the adjustable clamping block (8). The reinforcing block (10) is movably connected to the cavity (9). The cavity (9) is located inside the clamping block (5). The inner wall of the adjustable clamping block (8) is tightly attached to the surface of the clamping block (5). A slot (11) is provided on the surface of the cavity (9). A lock (12) is engaged on the surface of the slot (11). The surface of the lock (12) is movably connected to the spring cavity (13). The spring cavity (13) is located inside the reinforcing block (10). A compression spring (14) is provided on the surface of the spring cavity (13).
4. A fixture for machining needle holes in a needle shell according to claim 3, characterized in that: A stabilizing frame (20) is fixedly connected to the surface of the cavity (9). Locking rods (19) are movably connected to the two side plates of the stabilizing frame (20). The surface of the locking rods (19) is inserted into the locking hole (18). The locking hole (18) is opened on the surface of the reinforcing block (10). A return spring (21) is sleeved on the surface of the locking rods (19). The return spring (21) is located on the left side of the pressing block (22). The pressing block (22) is fixedly connected to the surface of the locking rods (19). A limiting slider (15) is fixedly connected to the top surface of the pressing block (22). The surface of the limiting slider (15) is movably connected to the limiting groove (25). The limiting groove (25) is opened on the inner top surface of the stabilizing frame (20). The surface of the pressing block (22) abuts against the end face of the flip buckle (24). A support rod is sleeved inside the flip buckle (24). The end of the support rod is fixedly connected to the surface of the notch (23). The notch (23) is opened on the side plate surface of the stabilizing frame (20).
5. A fixture for machining needle holes in a needle-tooth shell according to claim 3, characterized in that: The slot (11) has an arc-shaped groove structure. The central axis of the slot (11) and the lock hole (18) coincides on the same plane. The lock hole (18) has a cylindrical groove. The radius of the lock hole (18) is equal to the radius of the lock rod (19). There are three sets of lock holes (18), and the three sets of lock holes (18) are evenly distributed on the surface of the reinforcing block (10).
6. A fixture for machining needle-tooth holes in a needle-tooth shell according to claim 4, characterized in that: The cross-section of the stabilizing frame (20) has a "C" - shaped structure, and the width dimension of the notch (23) formed on the side plate surface of the stabilizing frame (20) is equal to that of the flipping buckle (24).