A bearing retainer machining tool

Abstract

The application relates to the technical field of bearing tooling, in particular to a bearing retainer machining tooling which comprises a base, a bearing frame and a clamping motor, the bearing frame and the clamping motor are fixedly installed on the base, slide ways and lead screws are arranged in parallel on the two sides of the base, and the lead screws are rotatably installed on the upper end face of the base; two groups of threaded blocks are screwedly assembled on the lead screws, two groups of sliding blocks are slidingly assembled on the slide ways, and the two groups of threaded blocks and the two groups of sliding blocks are one-to-one corresponding and position-matched. A rotating seat is fixedly installed on one group of corresponding threaded blocks and sliding blocks, a rotating wheel is rotatably installed on the rotating seat; a clamping frame is fixedly installed on the other group of corresponding threaded blocks and sliding blocks, a clamping wheel is arranged on the clamping frame, and the rotating wheel and the clamping wheel are annularly arranged along the circumferential direction of the bearing frame, so that the bearing retainer can be clamped and positioned in a ring type mode, and bearing retainers with different diameters and different specifications can be clamped and machined.

Description

Technical Field

[0001] This invention relates to the field of bearing tooling technology, and in particular to a bearing retainer machining tooling. Background Technology

[0002] The bearing cage is one of the core components of a bearing. Its main function is to isolate the rolling elements, evenly distribute the spacing between the rolling elements, prevent friction and collision between the rolling elements, and ensure the stability and service life of the bearing. The manufacturing process of the bearing cage requires multiple precision machining steps, including grinding, polishing, trimming, and drilling. The machining process demands extremely high precision in the positioning of the tooling, clamping stability, and rotational flexibility.

[0003] Existing traditional bearing cage machining fixtures have simple structures, mostly employing fixed clamping structures. These fixtures cannot achieve adaptive fine-tuning during machining, and lack rotation adjustment and positioning sensing functions. Traditional fixtures suffer from the following drawbacks: First, the fixed clamping distance cannot adapt to the machining of bearing cages of different sizes, resulting in poor versatility. Second, the cage exhibits high rotational resistance and low rotational accuracy, easily leading to machining misalignment and uneven grinding, resulting in low yield. Third, the lack of precise position sensing structures prevents real-time monitoring of the clamping and machining position, resulting in low automation, reliance on manual alignment adjustments, and low machining efficiency. Fourth, insufficient overall structural stability makes them prone to displacement deviations over long-term machining, failing to meet the demands of high-precision, mass-production bearing cage machining.

[0004] Therefore, there is an urgent need to design a bearing retainer machining tool that is structurally stable, versatile, precisely positioned, highly automated, and has high machining accuracy, in order to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by providing a bearing retainer machining fixture, which addresses the technical problems of poor versatility, low clamping and positioning accuracy, uneven retainer rotation, low automation, and low yield of existing machining fixtures.

[0006] The technical solution of this invention is: A bearing retainer machining fixture includes a base, a bearing bracket, and a clamping motor. The bearing bracket and the clamping motor are both fixedly mounted on the base. A slide rail and a lead screw are respectively arranged parallel to each other on both sides of the base. The lead screw is rotatably mounted on the upper end face of the base. The output end of the clamping motor is connected to the power end of the lead screw. Two sets of threaded blocks are threaded onto the lead screw, and two sets of sliders are slidably mounted on the slide rail. The two sets of threaded blocks and the two sets of sliders correspond one-to-one and are matched in position.

[0007] One set of corresponding threaded blocks and sliders is fixedly mounted with a rotating seat, and a rotating wheel is rotatably mounted on the rotating seat; another set of corresponding threaded blocks and sliders is fixedly mounted with a clamping seat, and a clamping frame is fixedly assembled on the clamping seat. The clamping frame is provided with at least two sets of clamping wheels. The rotating wheel and the clamping wheel are arranged in a ring along the circumference of the bearing frame to jointly achieve a ring-shaped clamping and positioning of the bearing retainer.

[0008] Furthermore, a rotating seat and a rotating motor are respectively provided at the upper and lower ends of the base. A rotating driven wheel is rotatably mounted on the rotating seat. The output end of the rotating motor passes through the base and is equipped with a rotating driving wheel. The rotating driving wheel and the rotating driven wheel mesh with each other to provide power for the rotational processing of the bearing retainer.

[0009] Furthermore, a pad is fixedly provided on the base, and the bearing bracket is rotatably mounted on the pad. The bearing bracket is raised and installed by means of the pad, which avoids interference with the base structure and improves installation stability.

[0010] Furthermore, the pad has a rotating groove, the bearing bracket is rotatably installed inside the rotating groove, and multiple rollers are spaced apart in the rotating groove. The outer side of the rollers abuts against the outer side of the bearing bracket to reduce the radial rotation resistance of the bearing bracket.

[0011] Furthermore, multiple balls are spaced and embedded on the lower end face of the rotating groove and the bearing surface of the pad, and the bearing bracket is mounted above the balls, which greatly reduces the axial rotational friction of the bearing bracket and ensures smooth rotation.

[0012] Furthermore, a sensing base is fixedly installed on the base, and a sensor is mounted on the sensing base. The probe end of the sensor corresponds to the clamping position of the rotating wheel, which can detect the clamping position and the workpiece's positioning status in real time, thereby achieving precise alignment monitoring.

[0013] Furthermore, a mounting seat is fixedly installed on the base, and the lead screw is rotatably mounted on the mounting seat. The mounting seat limits and fixes the lead screw, ensuring the coaxiality and stability of the lead screw rotation.

[0014] Furthermore, a drive wheel is fixedly mounted on the output end of the clamping motor, a guide wheel is mounted on the power end of the lead screw, and a conveyor belt is sleeved between the drive wheel and the guide wheel. The clamping motor drives the lead screw to rotate through the belt drive, resulting in smooth transmission and low noise.

[0015] Furthermore, the base is provided with a limiting seat, and the limiting seat is provided with a limiting cylinder. The limiting cylinder is located above the bearing frame, and the piston end of the limiting cylinder faces the bearing frame, for limiting the bearing frame in the vertical direction.

[0016] Furthermore, this fixture is also equipped with an automatic controller. All electrical components of the fixture are electrically connected to the automatic controller, which enables integrated intelligent control of the equipment, including automatic start-up and shutdown, clamping and adjustment, rotary machining, and sensor detection.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The bearing retainer processing fixture of the present invention adopts a sliding adjustment structure of lead screw, threaded block and slider. The lead screw is driven to rotate by clamping motor, which can drive two sets of clamping and rotating structures to synchronously translate and adjust the distance. It can be adapted to the clamping and processing of bearing retainers of different diameters and specifications, breaking through the limitations of traditional fixed clamping fixtures and greatly expanding the scope of application. The ring-shaped clamping structure with rotating wheels and multiple clamping wheels ensures uniform force distribution at multiple points, effectively preventing offset and wobbling during bearing retainer processing. Combined with real-time position monitoring by sensors, it achieves precise alignment, eliminates human alignment errors, significantly improves processing accuracy in grinding, trimming and other processes, and increases product yield. The bearing cage is installed through a composite support structure of rotating grooves of pads, rollers, and balls. Radial drag is reduced by limiting the rollers, and axial drag is reduced by supporting the balls. With the meshing rotation structure driven by a rotary motor, the bearing cage can achieve low-speed, stable, and high-precision rotation, ensuring uniform circumferential machining of the cage and eliminating machining dead corners. The lead screw is installed with a special mounting bracket to ensure coaxiality of the transmission; the base is supported by a support frame to ensure that the equipment operates without shaking or displacement; the transmission structure adopts belt drive, which has good buffering and shock absorption effect, low wear of parts, and significantly improves the stability and service life of the equipment. All electrical components are connected to the automatic controller, realizing integrated automatic control of clamping adjustment, workpiece rotation, position detection, and processing start and stop. This eliminates the need for repeated manual alignment adjustments, significantly reducing labor intensity and adapting to the processing needs of batch and automated production lines, thus significantly improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first structure of the bearing retainer machining tooling of the present invention; Figure 2 This is a schematic diagram of the second structure of the bearing retainer machining fixture of the present invention; Figure 3 This is a schematic diagram of the drive structure of the rotating wheel of the present invention; Figure 4 This is a schematic diagram of the installation structure of the bearing bracket of the present invention; Figure 5 This is a schematic diagram of the structure of the pad block of the present invention.

[0019] The components are as follows: 1. Clamping frame; 2. Clamping wheel; 3. Sensor; 4. Rotating wheel; 5. Rotating seat; 6. Lead screw; 7. Guide wheel; 8. Clamping motor; 9. Drive wheel; 10. Conveyor belt; 11. Limit cylinder; 12. Limit seat; 13. Base; 14. Support frame; 15. Bearing frame; 16. Slider; 17. Slide rail; 18. Rotary motor; 19. Rotary drive wheel; 20. Sensor base; 21. Rotating seat; 22. Mounting seat; 23. Threaded block; 24. Pad block; 25. Roller; 26. Rotary groove; 27. Ball bearing; 28. Clamping seat; 29. ​​Rotary driven wheel. Detailed Implementation

[0020] To make the technical means, technical features, inventive purpose and technical effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0021] like Figure 1-5 The diagram shown is a schematic representation of the overall structure of the bearing retainer machining fixture of the present invention.

[0022] The bearing retainer machining fixture of this embodiment includes a base 13, a bearing bracket 15, and a clamping motor 8. Both the bearing bracket 15 and the clamping motor 8 are fixedly mounted on the base 13. A slide rail 17 and a lead screw 6 are respectively arranged parallel to each other on both sides of the base 13. The lead screw 6 is rotatably mounted on the mounting seat 22 at the upper end of the base 13. The mounting seat 22 provides limiting support for the lead screw 6 and ensures rotational stability.

[0023] A drive wheel 9 is mounted on the output end of the clamping motor 8, and a guide wheel 7 is mounted on the power end of the lead screw 6. A conveyor belt 10 is fitted between the drive wheel 9 and the guide wheel 7. After the clamping motor 8 starts, it drives the lead screw 6 to rotate through the belt drive, achieving smooth power transmission. Two sets of threaded blocks 23 are threaded on the lead screw 6, and two sets of sliders 16 are slidably mounted on the slide rail 17. The threaded blocks 23 and sliders 16 are matched one-to-one to achieve the linkage between sliding guidance and threaded transmission, avoiding offset and jamming during adjustment.

[0024] One set of corresponding threaded blocks 23 and sliders 16 are fixed with rotating seats 5, and rotating wheels 4 are rotatably installed on rotating seats 5; another set of corresponding threaded blocks 23 and sliders 16 are fixed with clamping seats 28, clamping frames 1 are fixed at the upper end of clamping seats 28, and at least two sets of clamping wheels 2 are evenly arranged on clamping frames 1. The rotating wheels 4 and clamping wheels 2 are arranged in a ring along the bearing frame 15 to form a ring clamping structure, which accurately clamps and positions the bearing retainer placed on the bearing frame 15.

[0025] A sensor base 20 is fixed on the base 13, and a sensor 3 is installed on the sensor base 20. The sensor 3 probe is aligned with the clamping working surface of the rotating wheel 4, which can detect the workpiece clamping status and clamping distance in real time, providing data support for automated adjustment and ensuring the processing alignment accuracy.

[0026] A rotating seat 21 and a rotary motor 18 are respectively set at the upper and lower ends of the base 13. A rotating passive wheel 29 is rotatably installed on the rotating seat 21. A rotating active wheel 19 is installed through the base 13 at the output end of the rotary motor 18. The rotating active wheel 19 and the rotating passive wheel 29 mesh and drive each other, providing stable power for the circumferential rotation machining of the bearing retainer and realizing uniform rotation machining of the workpiece.

[0027] A pad 24 is fixed on the base 13, and the bearing bracket 15 is rotatably mounted inside the rotating groove 26 of the pad 24. Multiple rollers 25 are spaced apart on the side wall of the rotating groove 26. The rollers 25 abut against the outer side wall of the bearing bracket 15 to achieve radial limiting and drag reduction. Multiple balls 27 are embedded on the bearing surface of the pad at the lower end of the rotating groove 26. The bottom of the bearing bracket 15 is supported on the balls 27, which greatly reduces the axial rotation friction and makes the bearing bracket 15 drive the workpiece to rotate more smoothly and without jamming or deviation.

[0028] A limiting seat 12 is detachably installed on the base 13. A limiting cylinder 11 is fixed on the limiting seat 12. The limiting cylinder 11 is installed above the bearing frame 15, and the piston end of the limiting cylinder 11 faces the bearing frame 15. It is used to limit the bearing frame in the vertical direction to prevent the workpiece from floating or jumping during processing.

[0029] The base 13 has a fixed support frame 14 at the bottom, which raises the entire equipment, improves the stability of the equipment, and facilitates heat dissipation, circuit inspection and maintenance at the bottom of the equipment.

[0030] This embodiment is also equipped with an automatic controller. All electrical components inside the tooling, such as the clamping motor 8, the rotary motor 18, and the sensor 3, are electrically connected to the automatic controller. Operators can preset processing parameters through the automatic controller, and the equipment can automatically complete a series of processes such as clamping distance adjustment, workpiece positioning, uniform rotation, position detection, and processing start and stop, realizing fully automated processing production.

[0031] Working principle: In practical use, the device is first placed stably on the processing station using the support frame 14, the power supply is turned on, and the device is put into standby mode by the automatic controller. The bearing retainer to be processed is placed on the bearing holder 15, and then the clamping motor 8 is started. The clamping motor 8 drives the lead screw 6 to rotate through the drive wheel 9, the conveyor belt 10, and the guide wheel 7. The lead screw 6 drives the two sets of threaded blocks 23 to move synchronously, which, together with the slider 16, slides smoothly along the slide rail 17, causing the rotating wheel 4 and the clamping wheel 2 to move closer to each other, thus performing a ring-shaped clamping of the bearing retainer.

[0032] During clamping, sensor 3 detects the clamping position and workpiece positioning in real time, transmitting the detection signal to the automatic controller to achieve precise clamping and alignment, avoiding damage to the workpiece due to excessive clamping or displacement due to excessive clamping. After clamping is completed, the rotary motor 18 is started. The rotary motor 18 drives the rotary driven wheel 29 to mesh and rotate through the rotary drive wheel 19, driving the bearing bracket 15 to rotate.

[0033] Supported by the balls 27 and rollers 25 of the pad 24, the bearing holder 15 achieves low-resistance, high-precision, and uniform rotation, driving the bearing retainer to rotate circumferentially. This, in conjunction with external processing equipment, enables precision machining processes such as grinding, polishing, and trimming. After machining, the controller controls the clamping motor 8 to reverse, releasing the clamping structure and removing the machined workpiece. This completes a single machining cycle, and repeated cycles enable automated batch machining.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the claims of this invention should fall within the technical scope of this invention.

Claims

1. A tooling for machining a bearing retainer, characterized in that, The device includes a base (13), a bearing bracket (15), and a clamping motor (8). The bearing bracket (15) and the clamping motor (8) are both mounted on the base (13). The two sides of the base (13) are respectively provided with parallel slide rails (17) and lead screws (6). The lead screws (6) are rotatably mounted on the upper end of the base (13). The output end of the clamping motor (8) is connected to the power end of the lead screws (6). Two sets of threaded blocks (23) are threaded on the lead screws (6), and two sets of sliders (16) are slidably mounted on the slide rails (17). Two sets of threaded blocks (23) are positioned corresponding to two sets of sliders (16). One set of threaded blocks (23) and sliders (16) is provided with a rotating seat (5), and a rotating wheel (4) is rotatably mounted on the rotating seat (5). The other set of threaded blocks (23) and sliders (16) is provided with a clamping seat (28), and a clamping frame (1) is provided on the clamping seat (28). At least two sets of clamping wheels (2) are provided on the clamping frame (1). The rotating wheel (4) and the clamping wheel (2) are both arranged in a ring around the bearing frame (15).

2. The bearing retainer machining fixture according to claim 1, characterized in that, The upper and lower ends of the base (13) are respectively provided with a rotating seat (21) and a rotating motor (18). A rotating passive wheel (29) is rotatably installed on the rotating seat (21). The output end of the rotating motor (18) passes through the base (13) and is provided with a rotating active wheel (19). The rotating active wheel (19) meshes with the rotating passive wheel (29).

3. The bearing retainer machining fixture according to claim 1, characterized in that, The base (13) is provided with a pad (24), and the bearing bracket (15) is rotatably mounted on the pad (24).

4. The bearing retainer machining fixture according to claim 3, characterized in that, The pad (24) has a rotating groove (26), and the bearing bracket (15) is rotatably installed in the rotating groove (26). Multiple rollers (25) are spaced apart on the rotating groove (26), and the side of the rollers (25) abuts against the side of the bearing bracket (15).

5. The bearing retainer machining fixture according to claim 4, characterized in that, The lower end face of the rotating groove (26) is provided with a plurality of balls (27) spaced apart. The balls (27) are provided on the load-bearing surface of the pad (24), and the bearing bracket (15) is mounted on the balls (27).

6. The bearing retainer machining fixture according to claim 1, characterized in that, A sensing base (20) is provided on the base (13), and a sensor (3) is provided on the sensing base (20). The probe end of the sensor (3) corresponds to the clamping surface of the rotating wheel (4).

7. The bearing retainer machining fixture according to claim 1, characterized in that, The base (13) is provided with a mounting seat (22), and the lead screw (6) is rotatably mounted on the mounting seat (22).

8. The bearing retainer machining fixture according to claim 1, characterized in that, The output end of the clamping motor (8) is provided with a drive wheel (9), the power end of the lead screw (6) is provided with a guide wheel (7), and a conveyor belt (10) is provided between the drive wheel (9) and the guide wheel (7).

9. The bearing retainer machining fixture according to claim 1, characterized in that, The base (13) is provided with a limiting seat (12), and the limiting seat (12) is provided with a limiting cylinder (11). The limiting cylinder (11) is located above the bearing frame (15), and the piston end of the limiting cylinder (11) faces the bearing frame (15).

10. The bearing retainer machining fixture according to any one of claims 1-9, characterized in that, It also includes an automatic controller, and the electrical components of the bearing retainer machining fixture are all connected to the automatic controller.

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