A positioning device for bearing machining

The positioning device, driven by a worm gear and servo motor, achieves high-precision multi-point positioning, clamping, and rotation of the bearing, solving the problem of insufficient positioning accuracy in existing technologies and ensuring the machining quality and reliability of the oiling operation.

CN224271939UActive Publication Date: 2026-05-26JINGJIANG HUAHONG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGJIANG HUAHONG MASCH CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The positioning accuracy of existing bearing machining positioning devices is insufficient, resulting in positioning deviations that may damage the bearings and interfere with the lubrication operation, thus failing to meet the requirements of high-precision machining.

Method used

The positioning device, which uses worm gear transmission and servo motor drive, achieves multi-point high-precision positioning and clamping through the combination of arc-shaped positioning blocks and moving seats, and drives the bearing to rotate through the worm gear, which facilitates the oiling operation.

Benefits of technology

This improves positioning accuracy, avoids bearing damage caused by positioning deviations, ensures product quality, and provides a reliable foundation for subsequent oiling and other processing steps.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of bearing processing technology and discloses a positioning device for bearing processing, including a base, a housing fixedly connected to the outer wall of the base, a round shaft rotatably connected to the outer wall of the housing, and a transmission assembly for driving the round shaft disposed inside the housing. A turntable rotatably connects to the outer wall of the round shaft, a transmission gear rotatably connects to the outer wall of the turntable, and a processing table rotatably connects to the outer wall of the transmission gear. The outer wall of the processing table has multiple grooves arranged in a circumferential array, and each of the multiple grooves is slidably connected to a movable seat. An arc-shaped positioning block is rotatably connected to the outer wall of the movable seat. A positioning drive assembly is disposed on the outer wall of the transmission gear. Multiple fan-shaped placement racks are fixedly connected to the outer wall of the processing table. This utility model can greatly improve the positioning accuracy, effectively avoid bearing damage caused by positioning deviation, ensure product quality, and provide a reliable foundation for subsequent oiling and other processing steps.
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Description

Technical Field

[0001] This application relates to the field of bearing processing technology, and in particular to a positioning device for bearing processing. Background Technology

[0002] Bearings are an important component in modern machinery. Their main function is to support rotating mechanical parts and reduce the coefficient of friction during their movement. The oiling process on the outer wall of the bearing is crucial. Precise oiling can ensure that the bearing effectively reduces the coefficient of friction during operation, reduces wear, extends service life, and improves the stability and efficiency of equipment operation. More importantly, it isolates the metal parts from contact with air, preventing the metal parts from rusting.

[0003] The patent published online with the number "CN222019964U" discloses "a processing and positioning device for bearing manufacturing, including a housing, a motor installed at the top of the inner part of the housing... and positioning rods fixedly connected to the upper end faces of the two brackets." By activating two electric push rods, the two positioning rods are moved to opposite sides and tightly fitted against the inner wall of the bearing to complete the positioning of the bearing. Then, the motor is activated, and the rotating shaft drives the rotary table to rotate, causing the positioned bearing to rotate and be lubricated. Thus, this device facilitates the rotation of the positioned bearing and provides convenience for lubricating the outer wall of the bearing during processing.

[0004] Regarding the aforementioned technologies, the inventors believe that due to the limited precision of the electric push rods themselves, displacement errors are unavoidable during operation. In actual operation, it is very easy for one side of the positioning rod to contact the bearing surface first, while the other side of the positioning rod has not yet made contact with the bearing. This deviation may not only cause damage to the bearing during the positioning process, affecting product quality, but also seriously interfere with the lubrication operation of the bearing due to insufficient positioning accuracy, failing to meet the lubrication requirements of high-precision bearing processing. Therefore, a positioning device for bearing processing is proposed to solve the above problems.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] To address the aforementioned problems, this application provides a positioning device for bearing machining.

[0007] The positioning device for bearing processing provided in this application adopts the following technical solution:

[0008] A positioning device for bearing processing includes a base, a housing fixedly connected to the outer wall of the base, a circular shaft rotatably connected to the outer wall of the housing, and a transmission assembly for driving the circular shaft disposed inside the housing. A turntable rotatably connects to the outer wall of the circular shaft, a transmission gear rotatably connects to the outer wall of the turntable, and a processing table rotatably connects to the outer wall of the transmission gear. The outer wall of the processing table has multiple sliding grooves arranged in a circumferential array, and each of the multiple sliding grooves is slidably connected to a movable seat. An arc-shaped positioning block is rotatably connected to the outer wall of the movable seat. A positioning drive assembly is disposed on the outer wall of the transmission gear, and multiple fan-shaped placement racks are fixedly connected to the outer wall of the processing table.

[0009] Preferably, the transmission assembly includes a worm gear, which is fixedly connected to a round shaft, and a worm is rotatably connected to the inner wall of the housing, the worm meshing with the worm gear.

[0010] Preferably, the positioning drive assembly includes multiple arc-shaped guide grooves, which are arranged in a circumferential array on the outer wall of the transmission gear. Each of the multiple movable seats has a drive rod fixedly connected to its outer wall, and the drive rods are slidably connected to the arc-shaped guide grooves.

[0011] Preferably, a drive gear is rotatably connected to the outer wall of the turntable, and the drive gear meshes with a transmission gear. A servo motor is fixedly connected to the outer wall of the turntable away from the drive gear, and the output shaft of the servo motor is fixedly connected to the drive gear.

[0012] Preferably, a drive motor is fixedly connected to the outer wall of the housing, and the output shaft of the drive motor is fixedly connected to the worm gear.

[0013] Preferably, the processing table is fixedly connected to the outer wall between the multiple movable seats, and the placement platform is on the same horizontal plane as the movable seats and the fan-shaped placement frame.

[0014] Preferably, one side of the outer wall of the arc-shaped positioning block is stepped, and a round block is fixedly connected to the outer wall of the arc-shaped positioning block. A support block is fixedly connected to the outer side of the arc-shaped positioning block, and a pin is slidably installed on the outer wall of the support block. The two outer walls of the movable seat are symmetrically provided with insertion holes that are compatible with the pins.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] This device drives multiple movable seats to center and position arc-shaped positioning blocks, enabling the multiple arc-shaped positioning blocks to achieve high-precision positioning and clamping of the bearing. Then, a worm gear and worm wheel drive the round shaft to rotate, making it easy to rotate the positioned bearing. This facilitates subsequent oiling operations and allows for the replacement of the positioning clamping surfaces of the arc-shaped positioning blocks, improving the device's adaptability to different bearings. Compared to the structure driven by two electric push rods in the aforementioned patent application, this device significantly improves positioning accuracy, effectively avoids bearing damage caused by positioning deviations, ensures product quality, and provides a reliable foundation for subsequent oiling and other processing steps. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of Embodiment 1 of the application;

[0018] Figure 2 This is a partial structural schematic diagram of Embodiment 1 of the application;

[0019] Figure 3 This is a schematic diagram of the internal structure of the box in Embodiment 1 of the application;

[0020] Figure 4 This is a schematic diagram of the movable seat structure of Embodiment 1 of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Base; 2. Housing; 3. Turntable; 4. Processing table; 5. Fan-shaped placement rack; 6. Placement table; 7. Arc-shaped positioning block; 8. Moving seat; 9. Slide groove; 11. Arc-shaped guide groove; 12. Transmission gear; 13. Drive gear; 14. Drive rod; 15. Servo motor; 16. Round shaft; 17. Worm gear; 18. Worm wheel; 19. Drive motor; 20. Support block; 21. Pin; 22. Hole; 23. Round block. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0023] A positioning device for bearing processing includes a base 1, a housing 2 fixedly connected to the outer wall of the base 1, and a circular shaft 16 rotatably connected to the outer wall of the housing 2. A transmission assembly for driving the circular shaft 16 is installed inside the housing 2, driving the circular shaft 16 to rotate precisely, facilitating subsequent oiling of the bearing outer wall by operators. A turntable 3 is rotatably connected to the outer wall of the circular shaft 16, driving the turntable 3. A transmission gear 12 is rotatably connected to the outer wall of the turntable 3, and a processing table 4 is rotatably connected to the outer wall of the transmission gear 12. Multiple sliding grooves 9 are arranged in a circumferential array on the outer wall of the processing table 4, and each of the multiple sliding grooves 9 is slidably connected to a movable seat 8. An arc-shaped positioning block 7 is rotatably connected to the outer wall of the movable seat 8. By driving multiple movable seats 8 to move synchronously along the slide groove 9, the multiple movable seats 8 drive the arc-shaped positioning block 7 to move synchronously, thereby achieving precise positioning and fixing of the bearing by the multiple arc-shaped positioning blocks 7. This avoids the insufficient precision and easy displacement error caused by electric drive. The outer wall of the transmission gear 12 is provided with a positioning drive component, which can drive multiple movable seats 8 synchronously. The outer wall of the processing table 4 is fixedly connected with multiple fan-shaped placement racks 5. The multiple fan-shaped placement racks 5 facilitate the placement of bearings, avoiding the need for operators to hold bearings at all times and reducing the operator's strength.

[0024] The transmission assembly includes a worm gear 18, which is fixedly connected to a round shaft 16. A worm 17 is rotatably connected to the inner wall of the housing 2. The worm 17 meshes with the worm gear 18. By driving the worm 17 to rotate, the worm 17 drives the worm gear 18 to drive it precisely, which facilitates the rotation of the round shaft 16. The round shaft 16 then drives the positioned bearing to rotate, which in turn facilitates the subsequent oiling work.

[0025] The positioning drive assembly includes multiple arc-shaped guide grooves 11, which are arranged in a circumferential array on the outer wall of the transmission gear 12. Drive rods 14 are fixedly connected to the outer walls of multiple movable seats 8, and these drive rods 14 are slidably connected to the arc-shaped guide grooves 11. By driving the transmission gear 12 to rotate, the transmission gear 12 drives the multiple arc-shaped guide grooves 11 to rotate. The slidable connection between the multiple drive rods 14 and the arc-shaped guide grooves 11 guides the multiple drive rods 14, thereby driving the multiple movable seats 8 and facilitating the positioning of the multiple arc-shaped positioning blocks 7.

[0026] A drive gear 13 is rotatably connected to the outer wall of the turntable 3, and the drive gear 13 meshes with the transmission gear 12. A servo motor 15 is fixedly connected to the outer wall of the turntable 3 away from the drive gear 13, and the output shaft of the servo motor 15 is fixedly connected to the drive gear 13. The servo motor 15 is started by an external power switch, so that the output shaft of the servo motor 15 drives the drive gear 13 to rotate, thereby completing the drive of the transmission gear 12.

[0027] A drive motor 19 is fixedly connected to the outer wall of the housing 2, and the output shaft of the drive motor 19 is fixedly connected to the worm gear 17. The drive motor 19 is started by an external power switch, so that the output shaft of the drive motor 19 drives the worm gear 17.

[0028] The processing table 4 is located on the outer wall between multiple movable seats 8 and a placement table 6 is fixedly connected. The placement table 6, movable seats 8 and fan-shaped placement frame 5 are on the same horizontal plane. The same horizontal plane facilitates the fixation of the bearing by multiple arc-shaped positioning blocks 7. At the same time, it can limit the movement of multiple arc-shaped positioning clips 7. The placement table 6 facilitates the placement of the bearing between multiple arc-shaped positioning blocks 7, thereby facilitating the external movement of multiple arc-shaped positioning blocks 7 to clamp and position the bearing, improving the practicality of the device.

[0029] One side of the outer wall of the arc-shaped positioning block 7 is stepped. The stepped design of the arc-shaped positioning block 7 makes it easy for the bearing to be located at different heights, improving the adaptability of multiple arc-shaped positioning blocks 7. The outer wall of the arc-shaped positioning block 7 is fixedly connected to a circular block 23. At the same time, the arc-shaped positioning block 7 is rotatably connected to the movable seat 8. By rotating the arc-shaped positioning block 7, the circular block 23 and the stepped design side can be interchanged, thereby improving the device's adaptability to the bearing. The outer side of the arc-shaped positioning block 7 is fixedly connected to a support block 20, and a pin 21 is slidably installed on the outer wall of the support block 20. The two outer walls of the movable seat 8 are symmetrically opened with insertion holes 22 that are adapted to the pin 21. After the arc-shaped positioning block 7 is rotated, the pin 21 can be inserted into the appropriate insertion hole 22 to fix the replaced arc-shaped positioning block 7.

[0030] The implementation principle of the bearing machining positioning device in this application embodiment is as follows: First, the bearing is positioned. The operator starts the servo motor 15 through an external power switch, causing the output shaft of the servo motor 15 to drive the drive gear 13 to rotate. The drive gear 13 meshes with the transmission gear 12, so that the transmission gear 12 rotates precisely with the rotation of the drive gear 13. When the transmission gear 12 rotates, the shape and position change of the arc-shaped guide groove 11 will precisely drive the moving seat 8 to slide in the height slide groove 9 on the machining table 4 through the drive rod 14. The function of the slide groove 9 is to precisely guide the movement of the moving seat 8 and ensure that it slides along the slide groove 9. The sliding of the moving seat 8 will drive the arc-shaped positioning block 7 fixedly connected to it. The bearing is precisely moved and fitted onto the outer wall of multiple arc-shaped positioning blocks 7 or placed between multiple arc-shaped positioning blocks 7, so that multiple arc-shaped positioning blocks 7 can achieve high-precision positioning and clamping of the bearing. The operator can also loosen the fixing of the arc-shaped positioning block 7 by separating the pin 21 from the insertion hole 22. By rotating the arc-shaped positioning block 7, the positioning surface of the arc-shaped positioning block 7 can be replaced to adapt to the subsequent oiling operation. Then, by inserting the pin 21 into the insertion hole 22, the arc-shaped positioning block 7 is fixed. The fan-shaped placement frame 5 and the placement platform 6 can facilitate the bearing to play an important auxiliary support role. The operator can place the bearing on the fan-shaped placement frame 5 and the placement platform 6 before the moving seat 8 is moved, which is convenient for the operator to carry out the oiling work.

[0031] Once the positioning is complete, when the operator needs to apply oil to the outer wall of the bearing, the drive motor 19 is turned on by an external power source. The output shaft of the drive motor 19 drives the worm gear 17, which in turn drives the worm wheel 18 that meshes with it to rotate, thereby driving the round shaft 16. This avoids rotating the bearing positioned on the machining table 4, making it easier for the operator to apply oil to the outer wall of the bearing.

Claims

1. A positioning device for bearing machining, comprising a base (1), characterised in that: The outer wall of the base (1) is fixedly connected to a box (2), and the outer wall of the box (2) is rotatably connected to a round shaft (16). The inside of the box (2) is provided with a transmission assembly for driving the round shaft (16). The outer wall of the round shaft (16) is rotatably connected to a turntable (3). The outer wall of the turntable (3) is rotatably connected to a transmission gear (12). The outer wall of the transmission gear (12) is rotatably connected to a processing table (4). The outer wall of the processing table (4) is provided with multiple sliding grooves (9) in a circumferential array. Each of the multiple sliding grooves (9) is slidably connected to a movable seat (8). The outer wall of the movable seat (8) is rotatably connected to an arc-shaped positioning block (7). The outer wall of the transmission gear (12) is provided with a positioning drive assembly. The outer wall of the processing table (4) is fixedly connected to multiple fan-shaped placement racks (5).

2. The positioning device for bearing machining according to claim 1, characterized in that: The transmission assembly includes a worm gear (18), which is fixedly connected to a round shaft (16). A worm (17) is rotatably connected to the inner wall of the housing (2), and the worm (17) meshes with the worm gear (18).

3. The positioning device for bearing machining according to claim 1, characterized in that: The positioning drive assembly includes multiple arc-shaped guide grooves (11), which are arranged in a circular array on the outer wall of the transmission gear (12). The outer walls of the multiple moving seats (8) are fixedly connected with drive rods (14), and the multiple drive rods (14) are slidably connected to the arc-shaped guide grooves (11).

4. The positioning device for bearing machining according to claim 1, characterized in that: The outer wall of the turntable (3) is rotatably connected to a drive gear (13), and the drive gear (13) meshes with a transmission gear (12). The outer wall of the turntable (3) away from the drive gear (13) is fixedly connected to a servo motor (15), and the output shaft of the servo motor (15) is fixedly connected to the drive gear (13).

5. The positioning device for bearing machining according to claim 1, characterized in that: The outer wall of the housing (2) is fixedly connected to a drive motor (19), and the output shaft of the drive motor (19) is fixedly connected to the worm gear (17).

6. The positioning device for bearing machining according to claim 1, characterized in that: The processing table (4) is located on the outer wall between multiple movable seats (8) and a placement platform (6) is fixedly connected thereto. The placement platform (6) is on the same horizontal plane as the movable seats (8) and the fan-shaped placement rack (5).

7. The positioning device for bearing machining according to claim 1, characterized in that: The outer wall of the arc-shaped positioning block (7) is stepped, and a round block (23) is fixedly connected to the outer wall of the arc-shaped positioning block (7). A support block (20) is fixedly connected to the outer wall of the arc-shaped positioning block (7), and a pin (21) is slidably installed on the outer wall of the support block (20). The outer walls of the two sides of the movable seat (8) are symmetrically opened with insertion holes (22) that are compatible with the pin (21).