Clamping tool for bearing retainer production

The bearing cage is synchronously clamped by a bidirectional threaded rod and a driven bevel gear meshing structure, which solves the problem of uneven clamping force, improves product accuracy and quality, and simplifies debris cleaning.

CN223643558UActive Publication Date: 2025-12-09DALIAN CHENGFENG BEARING GRP CO LTD
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Patent Information

Application Number
CN202423120432.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-12-09
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

In the prior art, multiple jaws cannot move synchronously when the bearing cage is clamped, resulting in uneven clamping force. This causes the cage to shift position during processing, reducing product accuracy and quality, and making debris removal difficult.

Method used

It adopts a bidirectional threaded rod and driven bevel gear meshing structure. The motor drives the pulley to drive the bidirectional threaded rod to rotate synchronously, realizing the synchronous movement of the slider, providing uniform clamping force, and the threaded hole and bolt structure facilitates the cleaning of debris.

Benefits of technology

It achieves uniform clamping of the bearing cage, improves product accuracy and quality, reduces measurement and positioning errors, and simplifies the debris removal process.

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Abstract

The utility model discloses a clamping tool for producing a bearing retainer, which belongs to the technical field of bearing manufacture and comprises a mounting base, a motor, two support plates and four fixing plates are fixedly connected to the top of the mounting base, the four fixing plates are diagonally matched to form two groups, and the two groups of fixing plates are fixedly connected to the top of the mounting base. A first bidirectional threaded rod and a second bidirectional threaded rod are rotationally connected to the two fixing plates correspondingly. According to the clamping tool for bearing retainer production, a first bidirectional threaded rod, a second bidirectional threaded rod and a driven bevel gear are arranged, under the meshing action of the driven bevel gear and a driving bevel gear, a motor drives two driving belt wheels to rotate, and then the two driven belt wheels are driven to rotate through a belt; when the two-way threaded rod I and the two-way threaded rod II are rotated, the two sliding blocks on the two-way threaded rod I and the two-way threaded rod II are driven to synchronously rotate, so that the two sliding blocks on the two-way threaded rod I and the two-way threaded rod II oppositely and synchronously move, the four sliding blocks enable the bearing retainer to be uniformly clamped, deviation during product machining is avoided, and the precision and the quality of products are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of bearing manufacturing technology, specifically a clamping tool for bearing cage production. Background Technology

[0002] The bearing cage ensures that the rolling elements are evenly spaced within the bearing, preventing them from squeezing and colliding with each other, ensuring smooth rolling, providing the correct rolling track for the rolling elements, ensuring the accuracy of their motion trajectory, thereby improving the rotational accuracy of the bearing, and firmly fixing the rolling elements inside the bearing to prevent them from jumping out.

[0003] Existing technologies for clamping bearing cages cannot achieve synchronous movement of multiple grippers, resulting in uneven clamping force on the bearing cage. This leads to positional shift of the cage during processing, reducing product accuracy and quality. Furthermore, the debris generated during processing is difficult to clean, and debris accumulation can affect the movement of the clamping components, increasing measurement and positioning errors. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a clamping fixture for bearing cage production, which solves the problem that when clamping bearing cages in the prior art, multiple jaws cannot move synchronously, resulting in uneven clamping force on the bearing cage, which in turn causes the cage to shift position during processing, reducing product accuracy and quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for bearing cage production, comprising a mounting base, a motor, two support plates, and four fixing plates fixedly connected to the top of the mounting base, the four fixing plates being diagonally fitted to form two sets, and a bidirectional threaded rod one and a bidirectional threaded rod two being rotatably connected to the two sets of fixing plates respectively, each of the bidirectional threaded rod one and the bidirectional threaded rod two being threadedly connected to two sliders, a clamping block being fixedly connected to one side of the top of each slider, a clamping support plate being provided on the top of the four fixing plates, the clamping support plate having a sliding groove on its top, a driven pulley being fixedly connected to one end of each of the bidirectional threaded rod one and the bidirectional threaded rod two after passing through the fixing plate, a rotating rod being rotatably connected to the support plate, a driving pulley being fixedly connected to one end of the rotating rod, a belt being provided on the surface of the driven pulley and the driving pulley, and a driven bevel gear being fixedly installed at the other end of the rotating rod.

[0006] As a further embodiment of this utility model: the first bidirectional threaded rod and the second bidirectional threaded rod are arranged vertically, the spacing and size of the threads of the first bidirectional threaded rod and the second bidirectional threaded rod are the same and the threads are reversed, and the two sliders are respectively located at the two ends of the first bidirectional threaded rod and the second bidirectional threaded rod and are symmetrical about the center of the second bidirectional threaded rod.

[0007] As a further embodiment of this utility model: one side of the clamping block is set to be arc-shaped, and the slider is slidably connected to the top of the mounting base.

[0008] As a further embodiment of this utility model: the slide groove is configured in the shape of a cross, and the clamping block is slidably connected to the slide groove.

[0009] As a further embodiment of this utility model: the output end of the motor is fixedly connected to a driving bevel gear, and the driving bevel gear and the driven bevel gear mesh.

[0010] As a further embodiment of this utility model: the top of the fixing plate is provided with a threaded hole, the threaded hole penetrates the clamping support plate, and a bolt is threaded into the threaded hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This clamping fixture for bearing cage production, by setting up a double-threaded rod one, a double-threaded rod two, and a driven bevel gear, under the meshing action of the driven bevel gear and the driving bevel gear, the motor drives two drive pulleys to rotate, and then drives two driven pulleys to rotate through the belt, causing the double-threaded rod one and double-threaded rod two to rotate synchronously, thereby causing the two sliders on them to move synchronously relative to each other. The four sliders ensure that the bearing cage is subjected to a uniform clamping force, avoiding product deviation during processing and improving the product's accuracy and quality.

[0013] 2. The clamping fixture for bearing cage production uses threaded holes, a clamping support plate, and bolts. The threaded engagement of the threaded holes and bolts restricts the clamping support plate, fixing it to the top of the fixed plate. By rotating the bolts, the restriction on the fixed plate is released, and the clamping support plate can be removed. This allows for cleaning of the top of the mounting base, preventing debris accumulation from affecting the movement of the slider and reducing measurement and positioning errors. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 This is a cross-sectional structural diagram of the mounting base of this utility model;

[0017] In the diagram: 1. Mounting base; 2. Fixing plate; 3. Support plate; 4. Double-threaded rod one; 5. Double-threaded rod two; 6. Slider; 7. Clamping block; 8. Driven pulley; 9. Rotating rod; 10. Drive pulley; 11. Driven bevel gear; 12. Belt; 13. Motor; 14. Driven bevel gear; 15. Threaded hole; 16. Clamping support plate; 17. Slide groove; 18. Bolt. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-3 As shown, this utility model provides a technical solution: a clamping fixture for bearing cage production, including a mounting base 1. A motor 13, two support plates 3, and four fixing plates 2 are fixedly connected to the top of the mounting base 1. The four fixing plates 2 are diagonally fitted into two sets. Two sets of fixing plates 2 are rotatably connected to a first bidirectional threaded rod 4 and a second bidirectional threaded rod 5, respectively. Two sliders 6 are threadedly connected to both the first and second bidirectional threaded rods 4 and 5. The first and second bidirectional threaded rods 4 and 5 are arranged vertically, with the same thread spacing and size but opposite threads. The two sliders 6 are located at the two ends of the first and second bidirectional threaded rods 4 and 5, respectively, and are symmetrical about the center of the second bidirectional threaded rod 5. The four fixing plates 2 support the first and second bidirectional threaded rods 4 and 2. Because the thread spacing and size of the first and second bidirectional threaded rods 4 and 2 are the same and the threads are opposite, the four sliders 6 can move synchronously, preventing uneven clamping force on the cage and thus avoiding wobbling.

[0020] A clamping block 7 is fixedly connected to one side of the top of the slider 6. One side of the clamping block 7 is set to be arc-shaped. The slider 6 is slidably connected to the top of the mounting base 1. Because the clamping block 7 is set to be arc-shaped, it is easier to clamp and fix the retaining ring. The sliding of the slider 6 and the mounting base 1 can restrict the slider 6 and prevent the slider 6 from rotating with the bidirectional threaded rod 4 and the bidirectional threaded rod 5.

[0021] The top of the four fixed plates 2 is provided with a clamping support plate 16. The top of the clamping support plate 16 is provided with a sliding groove 17. The sliding groove 17 is set in a "+" shape. The clamping block 7 is slidably connected to the sliding groove 17. The clamping support plate 16 provides support for the processing of the cage. The setting of the sliding groove 17 facilitates the sliding of the clamping block 7.

[0022] Both the first and second bidirectional threaded rods 4 and 5 are fixedly connected to a driven pulley 8 after passing through the fixed plate 2. A rotating rod 9 is rotatably connected to the support plate 3. A drive pulley 10 is fixedly connected to one end of the rotating rod 9. A belt 12 is provided on the surface of the driven pulley 8 and the drive pulley 10. A driven bevel gear 11 is fixedly installed at the other end of the rotating rod 9. A drive bevel gear 14 is fixedly connected to the output end of the motor 13. The drive bevel gear 14 and the driven bevel gear 11 mesh. The motor 13 provides power, which is transmitted through the drive bevel gear 14 and the driven bevel gear 11, thereby driving the drive pulley 10 to rotate. The belt 12 drives the first and second bidirectional threaded rods 4 and 5 to rotate.

[0023] The top of the fixing plate 2 is provided with a threaded hole 15, which passes through the clamping support plate 16. A bolt 18 is connected to the threaded hole 15. The engagement of the threaded hole 15 and the bolt 18 can restrict the clamping support plate 16 and fix it to the top of the fixing plate 2. By removing the clamping support plate 16, it is convenient to clean the top of the mounting base 1.

[0024] The working principle of this utility model is as follows: In use, the bearing cage is placed on the clamping support plate 16, the motor 13 is started, and the driving bevel gear 14 is driven to rotate. Through the meshing of the driving bevel gear 14 and the driven bevel gear 11, the rotating rod 9 drives the two drive pulleys 10 to rotate, and then the belt 12 drives the two driven pulleys 8 to rotate synchronously, thereby driving the bidirectional threaded rod 4 and the bidirectional threaded rod 5 to rotate synchronously, so that the two sliders 6 on the bidirectional threaded rod 4 and the bidirectional threaded rod 5 move synchronously and relative to each other. The clamping block 7 clamps the bearing cage, and the bearing cage is subjected to a uniform clamping force. When disassembling the bearing cage, the rotation of the motor 13 causes the clamping block 7 to release the clamping of the bearing cage. During cleaning, the bolts 18 on the clamping support plate 16 are removed, releasing the restriction of the bolts 18 and the threaded holes 15 on the clamping support plate 16. After removing the clamping support plate 16, the top of the mounting base 1 is cleaned.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A clamping fixture for manufacturing bearing cages, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is fixedly connected to a motor (13), two support plates (3) and four fixing plates (2). The four fixing plates (2) are diagonally fitted to form two sets. Two sets of fixing plates (2) are rotatably connected to a first bidirectional threaded rod (4) and a second bidirectional threaded rod (5). Two sliders (6) are threadedly connected to both the first bidirectional threaded rod (4) and the second bidirectional threaded rod (5). A clamping block (7) is fixedly connected to one side of the top of the slider (6). The top of the four fixing plates (2) is provided with clamping supports. The clamping support plate (16) has a sliding groove (17) on its top. One end of the two-way threaded rod (4) and the two-way threaded rod (5) are fixedly connected to a driven pulley (8) after passing through the fixed plate (2). A rotating rod (9) is rotatably connected to the support plate (3). One end of the rotating rod (9) is fixedly connected to a drive pulley (10). The surfaces of the driven pulley (8) and the drive pulley (10) are provided with belts (12). The other end of the rotating rod (9) is fixedly installed with a driven bevel gear (11).

2. The clamping fixture for bearing cage production according to claim 1, characterized in that: The first bidirectional threaded rod (4) and the second bidirectional threaded rod (5) are arranged vertically. The spacing and size of the threads of the first bidirectional threaded rod (4) and the second bidirectional threaded rod (5) are the same and the threads are opposite. The two sliders (6) are located at the two ends of the first bidirectional threaded rod (4) and the second bidirectional threaded rod (5) respectively and are symmetrical about the center of the second bidirectional threaded rod (5).

3. The clamping fixture for bearing cage production according to claim 1, characterized in that: One side of the clamping block (7) is arc-shaped, and the slider (6) is slidably connected to the top of the mounting base (1).

4. The clamping fixture for bearing cage production according to claim 1, characterized in that: The slide (17) is configured in a "+" shape, and the clamping block (7) is slidably connected to the slide (17).

5. A clamping fixture for producing bearing cages according to claim 1, characterized in that: The output end of the motor (13) is fixedly connected to a drive bevel gear (14), which meshes with the driven bevel gear (11).

6. The clamping fixture for bearing cage production according to claim 1, characterized in that: The top of the fixing plate (2) is provided with a threaded hole (15), which passes through the clamping support plate (16), and a bolt (18) is threaded into the threaded hole (15).