Clamping tool for inner ball cage forge piece
Through the combined design of arc-shaped clamping plate and magnetic block, combined with the locking mechanism of pawl and ratchet ring, the internal cage displacement problem caused by clamping instability is solved, and high-precision and stable clamping effect is achieved.
Patent Information
- Application Number
- CN202422901682.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-27
AI Technical Summary
When clamping the inner ball cage, the existing clamping tool sets the friction force is insufficient to resist cutting force due to the small and uneven contact area, which can easily lead to the displacement of the inner ball cage, affecting the processing accuracy and stability.
The design of multiple arc-shaped clamping plates and magnetic blocks is adopted to enhance clamping force by using magnetic force, and the clamping state is locked through the mating of the pawl and ratchet ring to ensure the stable position of the forging.
It effectively resists the displacement of forgings caused by cutting forces, improves processing accuracy and clamping stability, facilitates fine-tuning and taking out forgings, and improves the stability and convenience of processing.
Smart Images
Figure CN223277611U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of clamping tooling, and more specifically, to a clamping tooling for inner ball cage forgings. Background Art
[0002] The rapid development of the automotive industry places ever-higher demands on the manufacturing precision, quality, and efficiency of automotive parts. As a key component in automotive transmission systems, the machining quality and stability of the inner ball cage (CAV) forgings are crucial. The clamping device plays a key role in the machining of inner ball cage forgings, directly impacting machining precision, production efficiency, and product quality.
[0003] Existing clamping fixtures use moving fixtures on both sides to hold the inner cage. However, because the inner cage's outer wall is curved, the fixtures are typically flat or simple block-shaped, limiting the contact area with the inner cage's curved outer wall. During machining, when cutting forces act on the inner cage, the small and uneven contact area means the friction between the fixtures and the inner cage is insufficient to counteract the torque generated by the cutting forces, easily causing the entire inner cage to shift. Utility Model Content
[0004] In order to solve the above problems, the present application provides an inner ball cage forging clamping tool.
[0005] The present application provides an inner ball cage forging clamping tooling that adopts the following technical solution:
[0006] An inner ball cage forging clamping tool comprises a workbench with a clamping assembly provided on the top of the workbench;
[0007] The clamping assembly is used to clamp the inner ball cage forging, including a clamping plate. The number of clamping plates is set to multiple. The inner side of each clamping plate is set in an arc shape. The inner side of each clamping plate is provided with a soft pad. Each clamping plate is provided with a magnetic block on the side away from the soft pad. Magnetic rods are provided between the multiple clamping plates, and flexible rings are provided at both ends of the magnetic rods.
[0008] Through the above technical solution, when the clamping assembly performs high-precision milling on the surface of the inner ball cage, the cutting force may cause the forging to tend to shift. The magnetic force generated by the energized magnetic rod and the magnetic blocks on the rear side of the multiple clamping plates can provide additional adsorption force, effectively resisting this displacement, reducing the possibility of displacement of the inner ball cage forging due to external force interference during the processing, ensuring the stable position of the forging and guaranteeing the processing accuracy.
[0009] Furthermore, the outer sides of the plurality of clamping plates are fixedly connected with L-shaped rods, the interior of the workbench is provided with a plurality of limiting grooves, and the plurality of L-shaped rods are slidably connected to the corresponding limiting grooves respectively.
[0010] Furthermore, a cavity is provided inside the workbench, a disc is provided inside the cavity, and a ratchet ring is fixedly connected to the outer wall of the disc.
[0011] Furthermore, a rod body is provided at one end of the workbench, a pawl is fixedly connected to the outer wall of the rod body, the pawl is located on one side of the ratchet ring, a spring is provided above the pawl, one end of the spring is connected to the rod body, and the other end of the spring is located on one side of the pawl.
[0012] With this technical solution, the pawl and ratchet ring work together to create a locking effect during the clamping process. Each time the lever is rotated, the disc rotates a certain angle accordingly. Once the appropriate clamping force is achieved, the pawl can only rotate in one direction, so the disc will not rotate in the opposite direction even with slight external disturbances. This maintains a stable grip of the clamping plate on the inner ball cage forging.
[0013] Furthermore, the top end of the rod body extends through and to the outside of the workbench and is connected to a rotating handle, on which a mark is provided.
[0014] With the above technical solution, if it is necessary to fine-tune the clamping state or remove the forging, the handle can be rotated according to the mark on the handle to disengage the pawl from the teeth of the ratchet ring. At this time, the handle can be reversed to remove the forging.
[0015] Furthermore, a plurality of arc-shaped grooves are provided inside the disc, and a plurality of slide grooves are provided on the workbench, and the position of each arc-shaped groove corresponds to the position of the slide groove.
[0016] Furthermore, the bottom end of each L-shaped rod is fixedly connected to a slider, and each slider is slidably connected to the corresponding arc groove and the sliding groove.
[0017] Furthermore, a rotating rod is fixedly connected to the bottom of the disc, the rotating rod is rotatably connected to the workbench, and one end of the rotating rod extends through the outside of the workbench.
[0018] In summary, this application includes at least one of the following beneficial technical effects:
[0019] (1) The utility model provides a clamping assembly. When performing high-precision milling of the inner ball cage surface, the cutting force may cause the forging to have a tendency to shift. The magnetic force generated by the energized magnetic rod and the magnetic blocks on the rear side of the multiple clamping plates can provide additional adsorption force to effectively resist such displacement, thereby reducing the possibility of displacement of the inner ball cage forging due to external force interference during the processing, ensuring the stability of the forging position and guaranteeing the processing accuracy.
[0020] (2) The utility model drives the disc by rotating the rotating rod to make the clamping plate fit the outer wall of the forging to achieve clamping. The pawl and the ratchet ring cooperate to lock the clamping state to prevent external force disturbance. The rotating handle can control the pawl to disengage for fine adjustment or to remove the forging. The overall design improves the stability and convenience of clamping the inner ball cage forging BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 It is a side view of the utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of the workbench of the present invention;
[0024] Figure 4 This is a schematic diagram of the connection structure between the disc and the rotating rod of the utility model;
[0025] Figure 5 It is a plan view of the utility model.
[0026] Explanation of the accompanying reference numerals: 1. workbench; 2. L-shaped rod; 3. magnetic block; 4. clamping plate; 5. soft pad; 6. magnetic rod; 7. flexible ring; 8. disc; 9. ratchet ring; 10. arc groove; 11. pawl; 12. rod body; 13. spring; 14. slider; 15. slide groove; 16. rotating rod; 17. limit groove; 18. rotating handle. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0028] Reference Figure 1-Figure 5 , an inner ball cage forging clamping tool, comprising a workbench 1, the top of which is provided with a clamping assembly;
[0029] The clamping assembly is used to clamp the inner ball cage forging, including a clamping plate 4. The number of clamping plates 4 is set to multiple. The inner side of each clamping plate 4 is arranged in an arc shape. The inner side of each clamping plate 4 is provided with a soft pad 5. Each clamping plate 4 is provided with a magnetic block 3 on the side away from the soft pad 5. A magnetic rod 6 is provided between the multiple clamping plates 4. Flexible rings 7 are provided at both ends of the magnetic rod 6. The outer sides of the multiple clamping plates 4 are fixedly connected with L-shaped rods 2. The interior of the workbench 1 is provided with multiple limit grooves 17, and the multiple L-shaped rods 2 are respectively slidably connected to the corresponding limit grooves 17.
[0030] During the clamping process, the forging is first placed on the outer wall of the magnetic rod 6. Since the flexible ring 7 has a certain deformation range, it can adapt to the size of the forging within a certain range. Then, multiple L-shaped rods 2 are made to slide inward inside the limiting groove 17, and the forging is clamped by multiple clamping plates 4 and the soft pads 5 inside thereof. After the clamping is completed, the magnetic rod 6 is energized to generate a magnetic field. The magnetic field generated by the magnetic rod 6 will cause the magnetic block 3 to be subjected to magnetic force. This magnetic force will further tighten the clamping plate 4, thereby enhancing the clamping force of the clamping assembly on the forging, making the forging more stable during the processing process.
[0031] When performing high-precision milling of the inner ball cage surface, the cutting force may cause the forging to tend to shift. The magnetic force generated by the energized magnetic rod 6 and the magnetic blocks 3 on the rear side of the multiple clamping plates 4 can provide additional adsorption force to effectively resist this displacement, reducing the possibility of displacement of the inner ball cage forging due to external force interference during the processing, ensuring the stability of the forging position and guaranteeing the processing accuracy.
[0032] Reference Figure 3-Figure 4 The workbench 1 has a cavity inside, a disc 8 is provided inside the cavity, a ratchet ring 9 is fixedly connected to the outer wall of the disc 8, a rod 12 is provided at one end of the workbench 1, a pawl 11 is fixedly connected to the outer wall of the rod 12, the pawl 11 is located on one side of the ratchet ring 9, a spring 13 is provided above the pawl 11, one end of the spring 13 is connected to the rod 12, the other end of the spring 13 is located on one side of the pawl 11, the top of the rod 12 extends through the outside of the workbench 1 and is connected to the rotary The handle 18 has a mark on it. A plurality of arc grooves 10 are provided inside the disc 8. A plurality of slide grooves 15 are provided on the workbench 1. Each arc groove 10 corresponds to the position of the slide groove 15. The bottom end of each L-shaped rod 2 is fixedly connected with a slider 14. Each slider 14 is slidingly connected with the corresponding arc groove 10 and the slide groove 15 respectively. A rotating rod 16 is fixedly connected to the bottom of the disc 8. The rotating rod 16 is rotatably connected to the workbench 1. One end of the rotating rod 16 extends through to the outside of the workbench 1.
[0033] When the clamping assembly is not working, multiple clamping plates 4 are in the initial position and are distributed around the top of the workbench 1. The slider 14 of the L-shaped rod 2 is located at the starting position of the arc groove 10 and the slide groove 15. At this time, there is enough space between the clamping plates 4 to place the inner ball cage forging. After the forging is placed, the inner ball cage forging is then clamped, and the operator manually rotates the rotating rod 16. The rotation of the rotating rod 16 will drive the disc 8 to rotate in the cavity of the workbench 1. The outer wall of the disc 8 is fixedly connected to a ratchet ring 9, which rotates with the disc 8. When the disc 8 rotates, the multiple arc grooves 10 opened inside it also rotate accordingly. Because the slider 14 fixed to the bottom end of each L-shaped rod 2 is slidably connected to the corresponding arcuate groove 10 and slide groove 15, the rotation of the arcuate groove 10 generates a force on the slider 14. Under the joint constraints of the arcuate groove 10 and the slide groove 15, the slider 14 slides along the slide groove 15 toward the center of the workbench 1. Because the inner side of each clamping plate 4 is curved and equipped with a soft pad 5, they gradually approach and fit the outer wall of the inner ball cage forging. Once the clamping plate 4 contacts the inner ball cage forging, continued movement will apply a clamping force to the inner ball cage forging, thereby clamping the inner ball cage forging.
[0034] During the clamping process, the pawl 11 and ratchet ring 9 cooperate to achieve a locking effect. Each time the rotating rod 16 is rotated, the disc 8 rotates a certain angle accordingly. When the appropriate clamping force is achieved, the pawl 11 can only rotate in one direction, and the disc 8 will not rotate in the opposite direction due to slight external disturbances, thereby maintaining a stable clamping state of the clamping plate 4 on the inner cage forging.
[0035] If it is necessary to fine-tune the clamping state or take out the forging, the handle 18 can be rotated according to the mark on the handle to disengage the pawl 11 from the teeth of the ratchet ring 9. At this time, the rod 16 is reversed to take out the forging.
[0036] The rotating rod 16 rotates to drive the disc 8 so that the clamping plate 4 fits against the outer wall of the forging to achieve clamping. The pawl 11 and the ratchet ring 9 cooperate to lock the clamping state to prevent external force disturbance. The rotating handle 18 can control the pawl 11 to disengage for fine-tuning or removing the forging. The overall design improves the stability and convenience of clamping the inner ball cage forging.
[0037] Working Principle: First, when the clamping assembly is not in operation, the multiple clamping plates 4 are in their initial positions around the top of the workbench 1, and the slider 14 of the L-shaped rod 2 is at the starting position of the arc groove 10 and the slide groove 15. At this time, there is sufficient space between the clamping plates 4 to facilitate the placement of the inner ball cage forging on the outer wall of the magnetic rod 6. Because the flexible ring 7 has a deformation range, it can accommodate forgings of a certain size range.
[0038] After the forging is placed, the clamping phase begins. The operator manually rotates the rotating rod 16, which drives the disc 8 in the cavity of the workbench 1, and the ratchet ring 9 on the outer wall of the disc 8 rotates accordingly. As the disc 8 rotates, the arcuate groove 10 inside it also rotates. The arcuate groove 10 and the slide groove 15 jointly restrict the slider 14, causing the L-shaped rod 2 fixed to the slider 14 to slide within the limit groove 17 along the center of the workbench 1, thereby driving the movement of the clamping plate 4. The inner side of the clamping plate 4 is curved and equipped with a soft pad 5. They gradually approach and fit the outer wall of the inner ball cage forging. When they continue to move after contact, they apply a clamping force to the inner ball cage forging, achieving clamping.
[0039] During the clamping process, the pawl 11 and ratchet ring 9 cooperate to provide a locking effect. Each time the rotating rod 16 is rotated, the disc 8 rotates by a corresponding angle. Once the appropriate clamping force is achieved, the pawl 11 can only rotate in one direction, and the disc 8 will not rotate in the opposite direction due to slight external disturbances, thereby maintaining the stable clamping state of the clamping plate 4 on the inner ball cage forging.
[0040] After the clamping is completed, the magnetic rod 6 can be energized to generate a magnetic field. The magnetic field will cause the magnetic block 3 on the outside of the clamping plate 4 to be acted upon by the magnetic force, further tightening the clamping plate 4 to enhance the clamping force. In the process of high-precision inner ball cage surface milling, it can effectively resist the displacement tendency of the forging caused by external forces such as cutting force, ensure the stability of the forging position, and guarantee the processing accuracy.
[0041] If it is necessary to fine-tune the clamping state or remove the forging, the handle 18 can be rotated according to the mark on the handle to disengage the pawl 11 from the teeth of the ratchet ring 9, and then the lever 16 can be reversed to achieve the corresponding operation.
[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A clamping tool for inner ball cage forgings, characterized in that: include: A workbench (1), wherein a clamping assembly is provided on the top of the workbench (1); The clamping assembly is used for clamping the inner ball cage forging, and includes a clamping plate (4). The number of the clamping plates (4) is set to be multiple, the inner side of each clamping plate (4) is set in an arc shape, the inner side of each clamping plate (4) is provided with a soft pad (5), and each clamping plate (4) is provided with a magnetic block (3) on the side away from the soft pad (5). Magnetic rods (6) are provided between the multiple clamping plates (4), and flexible rings (7) are provided at both ends of the magnetic rods (6).
2. The inner ball cage forging clamping tool according to claim 1, characterized in that: The outer sides of the plurality of clamping plates (4) are fixedly connected to L-shaped rods (2), the interior of the workbench (1) is provided with a plurality of limiting grooves (17), and the plurality of L-shaped rods (2) are slidably connected to corresponding limiting grooves (17).
3. The inner ball cage forging clamping tool according to claim 2, characterized in that: A cavity is provided inside the workbench (1), a disc (8) is provided inside the cavity, and a ratchet ring (9) is fixedly connected to the outer wall of the disc (8).
4. The inner ball cage forging clamping tool according to claim 3, characterized in that: A rod body (12) is provided at one end of the workbench (1), a pawl (11) is fixedly connected to the outer wall of the rod body (12), the pawl (11) is located on one side of the ratchet ring (9), a spring (13) is provided above the pawl (11), one end of the spring (13) is connected to the rod body (12), and the other end of the spring (13) is located on one side of the pawl (11).
5. The inner ball cage forging clamping tool according to claim 4, characterized in that: The top end of the rod body (12) extends through the outside of the workbench (1) and is connected to a rotating handle (18), and a mark is provided on the rotating handle (18).
6. The inner ball cage forging clamping tool according to claim 3, characterized in that: The disc (8) is provided with a plurality of arc-shaped grooves (10) therein, and the workbench (1) is provided with a plurality of slide grooves (15), and the position of each arc-shaped groove (10) corresponds to that of the slide groove (15).
7. The inner ball cage forging clamping tool according to claim 6, characterized in that: The bottom end of each L-shaped rod (2) is fixedly connected to a slider (14), and each slider (14) is slidably connected to the corresponding arc groove (10) and the sliding groove (15).
8. The inner ball cage forging clamping tool according to claim 3, characterized in that: The bottom of the disc (8) is fixedly connected to a rotating rod (16), the rotating rod (16) is rotatably connected to the workbench (1), and one end of the rotating rod (16) extends through the outside of the workbench (1).