Bearing positioning device for bearing machining
By designing a multi-angle positioning device, the problem of bearing misalignment caused by single positioning during processing was solved, achieving stable bearing fixation and high-precision machining, thus improving product quality.
Patent Information
- Application Number
- CN202520348518.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing bearing positioning devices use single-direction positioning, which makes the bearings prone to shifting during processing, affecting processing accuracy and product qualification rate.
The bearing is positioned by squeezing from the inner wall of the bearing with positioning rollers, and then pressed down from the upper end face of the bearing with a lower pressure plate. The lifting and rotating mechanism driven by the cylinder is used to achieve multi-angle positioning and stable fixation.
This effectively ensures the stability of the bearing during the processing, improves positioning efficiency and processing accuracy, and enhances product consistency and pass rate.
Smart Images

Figure CN223834000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing processing technology, and in particular to a bearing positioning device for bearing processing. Background Technology
[0002] Bearing positioning devices are required during bearing processing, mainly to ensure processing accuracy, improve processing efficiency, ensure processing safety, and enhance product consistency.
[0003] Most existing bearing positioning devices employ only a single-directional positioning method. For example, some devices rely solely on simple clamps to fix the bearing from one side, or simply provide a support structure below the bearing, neglecting constraints in other directions. During machining operations such as cutting and grinding, the contact between the cutting tool and the bearing generates cutting forces, while vibrations from machine operation are also transmitted to the bearing. Under the combined effect of these external forces, a bearing positioned in only one direction is unlikely to maintain a stable position, and is highly susceptible to displacement or wobbling. Once the bearing shifts during machining, it leads to deviations in machining dimensions, altering the originally precise machining position, and severely affecting machining accuracy. This results in bearings that fail to meet design requirements, reducing product yield and increasing production costs. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a bearing positioning device for bearing processing.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A bearing positioning device for bearing processing includes a base with multiple movable grooves on its upper surface. A rotating chamber is located inside the base. A horizontal screw extending into the rotating chamber is rotatably mounted within the movable grooves. A drive motor is located within the rotating chamber via a lifting mechanism. The horizontal screw is connected to the drive motor via the rotating mechanism. A movable plate is threaded onto the horizontal screw, and a positioning roller is mounted on the movable plate. A vertical screw extending into the rotating chamber is rotatably mounted on the base. The vertical screw is connected to the drive motor via an engagement mechanism. A lifting plate is threaded onto the vertical screw. A lower pressure plate is located on the lifting plate via a movable groove. A mating mechanism corresponding to the lower pressure plate is located on the positioning roller.
[0007] Preferably, the lifting mechanism includes a cylinder installed in the rotating chamber, and the telescopic end of the cylinder is connected to a drive motor.
[0008] Preferably, the rotating mechanism includes a drive gear mounted on the output shaft of the drive motor, and the transverse screw is provided with a transmission gear that meshes with the drive gear.
[0009] Preferably, the insertion mechanism includes a plug mounted on the output shaft of the drive motor, and the vertical screw is provided with a slot corresponding to the plug.
[0010] Preferably, the mating mechanism includes a vertical rod mounted on the positioning roller, and the lower pressure plate is provided with a mating opening corresponding to the vertical rod.
[0011] Preferably, a limiting rod is provided in the movable groove, and the limiting rod is parallel to the horizontal screw and slides through the moving plate.
[0012] The beneficial effects of this utility model are:
[0013] 1. The bearing is positioned by squeezing from the inner wall of the bearing with positioning rollers, and fixed by pressing down from the upper end face of the bearing with a lower pressure plate. This achieves multi-angle positioning of the bearing and effectively ensures the stability of the bearing when placed on the base.
[0014] 2. The cylinder drives the drive motor to lift and lower, which can realize the drive motor driving the horizontal screw to rotate through the rotation mechanism, or driving the vertical screw to rotate through the insertion mechanism, and flexibly switch the drive mode according to different positioning requirements.
[0015] 3. The vertical rod on the positioning roller is set to correspond with the mating joint of the lower pressure plate, so that the positioning roller can drive the lower pressure plate to move synchronously when it moves. The components work together, the operation is smooth, and the positioning efficiency is improved. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a bearing positioning device for bearing processing proposed in this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;
[0018] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A.
[0019] In the diagram: 1. Base, 2. Vertical screw, 3. Lifting plate, 4. Movable groove, 5. Lower pressure plate, 6. Positioning roller, 7. Vertical rod, 8. Mating port, 9. Rotating groove, 10. Rotating chamber, 11. Horizontal screw, 12. Moving plate, 13. Limiting rod, 14. Cylinder, 15. Drive motor, 16. Drive gear, 17. Transmission gear, 18. Insert block, 19. Slot. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-3A bearing positioning device for bearing processing includes a base 1, with multiple movable grooves 4 on the upper surface of the base 1. A rotating chamber 10 is provided inside the base 1. A horizontal screw 11 extending into the rotating chamber 10 is rotatably mounted in the movable grooves 4. A drive motor 15 is provided in the rotating chamber 10 via a lifting mechanism. The horizontal screw 11 is connected to the drive motor 15 via the rotating mechanism. A movable plate 12 is threaded onto the horizontal screw 11. A positioning roller 6 is mounted on the movable plate 12. A vertical screw 2 extending into the rotating chamber 10 is rotatably mounted on the base 1. The vertical screw 2 is connected to the drive motor 15 via an insertion mechanism. A lifting plate 3 is threaded onto the vertical screw 2. A lower pressure plate 5 is provided on the lifting plate 3 via the movable grooves 4. A matching mechanism corresponding to the lower pressure plate 5 is provided on the positioning roller 6.
[0022] The lifting mechanism includes a cylinder 14 installed in the rotating chamber 10, and the telescopic end of the cylinder 14 is connected to the drive motor 15. The cylinder 14 is a power unit, which, after starting, can either drive the horizontal screw 11 to rotate via the drive gear 16 and the transmission gear 17, or drive the vertical screw 2 to rotate via the insert block 18 and the slot 19.
[0023] The rotating mechanism includes a drive gear 16 mounted on the output shaft of the drive motor 15, and a transmission gear 17 meshing with the drive gear 16 on the transverse screw 11. Both the drive gear 16 and the transmission gear 17 are bevel gears, and their meshing relationship is perpendicular. In the figure, the teeth on the drive gear 16 and the transmission gear 17 are not shown, and the threads on the transverse screw 11 are also not shown; only their structure is shown.
[0024] Specifically, the thread orientation of the multiple horizontal screws 11 is designed according to their rotation direction to ensure that when the multiple horizontal screws 11 rotate, the moving plate 12 can drive the positioning roller 6 to move synchronously closer to or further away.
[0025] The engagement mechanism includes a plug 18 mounted on the output shaft of the drive motor 15, and a slot 19 corresponding to the plug 18 on the vertical screw 2. The plug 18 is a rectangular prism, and the slot 19 is a rectangular groove. When the plug 18 is in the slot 19, the drive motor 15 starts and drives the vertical screw 2 to rotate together.
[0026] The mating mechanism includes a vertical rod 7 mounted on the positioning roller 6, and a mating opening 8 on the lower pressure plate 5 corresponding to the vertical rod 7. The vertical rod 7 can move synchronously with the positioning roller 6, and when the vertical rod 7 moves, it can drive the lower pressure plate 5 to move synchronously.
[0027] A limiting rod 13 is provided inside the movable groove 4. The limiting rod 13 is parallel to the horizontal screw 11 and slides through the moving plate 12. The limiting rod 13 effectively limits the movement of the moving plate 12, preventing the moving plate 12 from rotating with the horizontal screw 11.
[0028] In use, the bearing to be processed is placed on the base 1 and outside the four positioning rollers 6. At this time, the drive gear 16 meshes with the transmission gear 17. Then, the drive motor 15 is started to drive the drive gear 16 to rotate. The drive gear 16 and the transmission gear 17 work together to drive the horizontal screw 11 to rotate. When the horizontal screw 11 rotates, the moving plate 12 drives the positioning rollers 6 to move closer to the inner wall of the bearing. Finally, the four positioning rollers 6 press and fix the bearing. Since the vertical rod 7 is set, it is located in the mating port 8. The vertical rod 7 will move synchronously with the positioning rollers 6. The vertical rod 7 will drive the lower pressure plate 5 to move. There is a gap between the bottom of the lower pressure plate 5 and the bearing. Then, the cylinder 14 is started to drive the drive motor 15 to rise. The insert 18 on the output shaft of the drive motor 15 enters the slot 19. At this time, the drive motor 15 starts to drive the vertical screw 2 to rotate. When the vertical screw 2 rotates, the lifting plate 3 will drive the lower pressure plate 5 to descend, fixing the upper end face of the bearing and ensuring the stability of the bearing on the base 1.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A bearing positioning device for bearing processing, comprising a base (1), characterized in that, The upper surface of the base (1) is provided with multiple movable grooves (4). The base (1) is provided with a rotating chamber (10). A horizontal screw (11) extending into the rotating chamber (10) is rotatably provided in the movable groove (4). A drive motor (15) is provided in the rotating chamber (10) through a lifting mechanism. The horizontal screw (11) is connected to the drive motor (15) through the rotating mechanism. A movable plate (12) is threaded on the horizontal screw (11). A positioning roller (6) is installed on the movable plate (12). A vertical screw (2) extending into the rotating chamber (10) is rotatably provided on the base (1). The vertical screw (2) is connected to the drive motor (15) through a mating mechanism. A lifting plate (3) is threaded on the vertical screw (2). A lower pressure plate (5) is provided on the lifting plate (3) through the movable groove (4). A matching mechanism corresponding to the lower pressure plate (5) is provided on the positioning roller (6).
2. The bearing positioning device for bearing processing according to claim 1, characterized in that, The lifting mechanism includes a cylinder (14) installed in the rotating chamber (10), and the telescopic end of the cylinder (14) is connected to the drive motor (15).
3. The bearing positioning device for bearing processing according to claim 2, characterized in that, The rotating mechanism includes a drive gear (16) mounted on the output shaft of the drive motor (15), and a transmission gear (17) meshing with the drive gear (16) is provided on the horizontal screw (11).
4. A bearing positioning device for bearing processing according to claim 3, characterized in that, The engagement mechanism includes a plug (18) mounted on the output shaft of the drive motor (15), and the vertical screw (2) is provided with a slot (19) corresponding to the plug (18).
5. A bearing positioning device for bearing processing according to claim 4, characterized in that, The mating mechanism includes a vertical rod (7) mounted on the positioning roller (6), and the lower pressure plate (5) is provided with a mating port (8) corresponding to the vertical rod (7).
6. A bearing positioning device for bearing processing according to claim 5, characterized in that, The movable groove (4) is provided with a limiting rod (13), which is parallel to the horizontal screw (11) and slides through the moving plate (12).