Positioning device for micro bearing machining

By designing a slide block, slide bar, and clamping block, and combining a worm gear and a self-locking motor, the problem that existing devices cannot adapt to bearing sleeves of different diameters is solved, improving the flexibility and stability of micro bearing processing.

CN224129561UActive Publication Date: 2026-04-17JIANGSU HAIFENG HAILIN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HAIFENG HAILIN TECH CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing positioning devices cannot flexibly adapt to miniature bearing sleeves of different diameters, resulting in poor usability.

Method used

The design employs a slide block, slide bar, and clamping block, and through the cooperation of a worm gear and a self-locking motor, it achieves flexible clamping and stable fixation of bearing sleeves of different sizes.

Benefits of technology

It enables flexible and adaptable clamping of bearing sleeves of different sizes, improving the convenience and stability of processing.

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Abstract

The utility model relates to a positioning device for miniature bearing processing, which comprises a frame body, a sliding seat is mounted at the top of the frame body through a moving component, a worm gear is rotatably connected to one side of the sliding seat, a power component for rotating the worm gear is arranged on one side of the sliding seat, a through type circular groove is formed in one side of the worm gear, a circular ring is fixedly connected in the circular groove, and the circular ring is fixedly connected to the other side of the sliding seat. A plurality of evenly-distributed penetrating type arc-shaped sliding grooves are formed in one side of the circular ring, a containing base concentric with the worm wheel is fixedly connected to one side of the sliding base, a plurality of evenly-distributed I-shaped sliding grooves are formed in one side of the containing base, sliding strips are slidably connected into the I-shaped sliding grooves, and a guide rod and a clamping block are fixedly connected to one side of each sliding strip. According to the bearing sleeve clamping device, bearing sleeves of different sizes can be clamped and fixed, the usability of the device is improved, the bearing sleeves can linearly move in the machining process so that the positions of the bearing sleeves can be flexibly adjusted, and convenience in the machining process is improved.
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Description

Technical Field

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

[0002] Miniature bearings are a widely used precision component, used in various electronic devices, mechanical equipment and precision instruments. These bearings are favored because of their small size, light weight and ability to provide efficient rotational support in a limited space.

[0003] The existing positioning devices have uniform specifications for their fixing structures, which makes it inconvenient to fix bearing sleeves of different diameters. This makes it difficult for the device to be used with bearing sleeves of different sizes and diameters, resulting in poor applicability of the device during use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an apparatus to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A positioning device for processing miniature bearings includes a frame. A slide is mounted on the top of the frame via a movable component. A worm gear is rotatably connected to one side of the slide. A power component for rotating the worm gear is provided on one side of the slide. A threaded groove is formed on one side of the slide, and a screw is rotatably connected in the threaded groove. A through-type circular groove is formed on one side of the worm gear, and a circular ring is fixedly connected in the circular groove. Multiple evenly distributed through-type arc-shaped sliding grooves are formed on one side of the circular ring. A placement seat concentric with the worm gear is fixedly connected to one side of the slide. Multiple evenly distributed I-shaped sliding grooves are formed on one side of the placement seat. A slide bar is slidably connected in the I-shaped sliding groove. A guide rod and a clamping block are fixedly connected to one side of the slide bar.

[0007] As a further embodiment of this utility model, the moving component includes two stop bars, both of which are fixedly connected to the top of the frame. A lead screw is rotatably connected between the two stop bars via a bearing. A reduction motor is fixedly connected to one side of one of the stop bars. The output shaft of the reduction motor passes through the stop bar and is fixed to the lead screw via a coupling. The top of the frame is provided with a guide component for horizontal movement of its slide.

[0008] As a further embodiment of this utility model, the guide component consists of two guide rails, both of which are fixedly connected to the top of the frame.

[0009] As a further embodiment of this utility model, the power component includes two fixed blocks, which are fixedly connected to one side of the slide. A worm gear is rotatably connected between the two fixed blocks via a bearing, and one end of the worm gear passes through the fixed blocks. A side plate is fixedly connected to one side of the slide, and a self-locking motor is fixedly connected to one side of the side plate. The output shaft of the self-locking motor passes through the side plate and is fixed to the worm gear via a coupling.

[0010] As a further embodiment of this utility model, one side of the clamping block is a V-shaped surface, and the opposite side is an arc-shaped surface, and both surfaces are fixedly connected with rubber pads.

[0011] As a further improvement of this utility model, an opening slot is provided on the top of the frame.

[0012] As a further improvement of this utility model, a collection box is provided inside the frame, and the collection box is located directly below the opening slot.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] 1. By providing a slide block, a slide bar, and a clamping block, the synchronous movement of the slide bar causes the clamping block to move synchronously, thereby achieving the clamping and fixing of bearing sleeves of different sizes. This allows the device to flexibly adapt to bearing sleeves of different sizes, thus improving the usability of the device.

[0015] 2. By incorporating a movable component, the cooperation between the components allows the slide to move along the guide rail, enabling the clamped bearing sleeve to move linearly during processing and flexibly adjust its position, thus improving the convenience of processing.

[0016] 3. By incorporating a power component and a worm gear, the self-locking motor, worm gear, and worm shaft work together to prevent loosening when clamping the bearing sleeve, making the device more stable during use. Attached Figure Description

[0017] Figure 1 This invention provides a front perspective view of an embodiment of a positioning device for micro-bearing processing according to the present invention.

[0018] Figure 2 This invention provides a schematic cross-sectional view of the worm gear in an embodiment of a positioning device for micro-bearing processing.

[0019] Figure 4 This diagram shows a partial exploded view of an embodiment of a positioning device for micro-bearing processing according to the present invention;

[0020] Figure 3This illustration shows an enlarged schematic diagram of the slide bar of an embodiment of a positioning device for micro bearing processing proposed in this utility model.

[0021] Marked in the attached diagram:

[0022] 1. Frame; 2. Collection box; 3. Opening slot; 4. Stop bar; 5. Guide rail; 6. Slide seat; 7. Lead screw; 8. Side plate; 9. Self-locking motor; 10. Fixing block; 11. Worm gear; 12. Worm wheel; 13. Ring; 14. Placement seat; 15. I-shaped slide groove; 16. Sliding bar; 17. Arc-shaped slide groove; 18. Guide rod; 19. Clamping block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Reference Figures 1-4 A positioning device for processing miniature bearings includes a frame 1. A slide 6 is mounted on the top of the frame 1 via a movable component. The movable component includes two stop bars 4, both of which are fixed to the top of the frame 1 by bolts. A lead screw 7 is rotatably connected between the two stop bars 4 via a bearing. A geared motor is fixed to one side of one of the stop bars 4 by bolts. The geared motor can be a DC motor and can rotate in both directions. The output shaft of the geared motor passes through the stop bar 4 and is fixed to the lead screw 7 via a coupling. The top of the frame 1 is provided with a guide component that allows the slide 6 to move horizontally. The guide component consists of two guide rails 5, which are fixed to the top of the frame 1 by bolts. The geared motor drives the lead screw 7 to rotate, thereby causing the slide 6 to move axially along the guide rails 5. This allows the clamped bearing sleeve to move linearly during processing, enabling flexible position adjustment and improving the convenience of processing.

[0025] In this invention, a worm gear 12 is rotatably connected to one side of the slide block 6. A power component for rotating the worm gear 12 is provided on one side of the slide block 6. The power component includes two fixing blocks 10, which are bolted to one side of the slide block 6. A worm gear 11 is rotatably connected between the two fixing blocks 10 via a bearing, with one end of the worm gear 11 passing through the fixing blocks 10. A side plate 8 is bolted to one side of the slide block 6, and a self-locking motor 9 is bolted to one side of the side plate 8. The self-locking motor 9 can be a DC motor and is capable of forward and reverse rotation. The output shaft of the self-locking motor 9 rotates and passes through the side plate 8, and is fixed to the worm gear 11 via a coupling. The rotation of the self-locking motor 9 drives the worm gear 11 to rotate forward and backward, thereby driving the worm wheel 12 to rotate forward and backward, so that it will not loosen when clamping the bearing sleeve, making the device more stable during use. In addition, a threaded groove can be opened at the tail end of the worm gear 11, and a locking nut can be threaded onto the threaded groove, so that the locking nut can contact the fixing block 10 away from the self-locking motor 9. After clamping, the locking nut can be tightened to prevent the worm gear 11 from rotating.

[0026] A through-hole circular groove is formed on one side of the worm gear 12. A ring 13 is fixed in the groove by bolts. Multiple evenly distributed through-hole arc-shaped sliding grooves 17 are formed on one side of the ring 13. A placement seat 14 concentric with the worm gear 12 is fixed to one side of the slide seat 6 by bolts. Multiple evenly distributed I-shaped sliding grooves 15 are formed on one side of the placement seat 14. A slide bar 16 is slidably connected in the I-shaped sliding grooves 15. A guide rod 18 and a clamping block 19 are fixed to one side of the slide bar 16 by bolts. The guide rod 18 is aligned with the arc-shaped grooves 17. The slide groove 17 is accessible. The worm gear 12 rotates in both directions, driving the ring 13 to rotate in both directions. This causes the guide rod 18 to be squeezed through the arc-shaped slide groove 17, which in turn causes the slide bar 16 to slide within the I-shaped slide groove 15. This results in multiple clamping blocks 19 moving inward and outward simultaneously. The synchronous movement of the slide bar 16 moves the clamping blocks 19 synchronously, thus achieving the clamping and fixing of bearing sleeves of different sizes. This allows the device to flexibly adapt to bearing sleeves of different sizes, thereby improving the usability of the device.

[0027] In particular, a threaded groove is provided on one side of the slide 6, and a bolt is rotatably connected in the threaded groove. One end of the bolt can contact the worm gear 12. By tightening the bolt, it is made to press against the worm gear 12, thereby preventing the worm gear 12 from rotating.

[0028] It should be noted that one side of the clamping block 19 is a V-shaped surface, and the opposite side is an arc-shaped surface, and both surfaces are bonded with rubber pads. The top of the frame 1 has an opening slot 3, and a collection box 2 is provided inside the frame 1, with the collection box 2 located directly below the opening slot 3. The V-shaped surface facilitates clamping the outer surface of the bearing sleeve, and the arc-shaped surface facilitates supporting the inner wall of the bearing sleeve. The rubber pads increase the device's protection capability when clamping the bearing sleeve, and the opening slot 3 and collection box 2 facilitate the collection of waste generated during processing.

[0029] Working principle: Manually press the bearing sleeve to be processed onto one side of the placement seat 14. At this time, start the self-locking motor 9 to drive the worm gear 11 to rotate, thereby causing the worm wheel 12 and the ring 13 to rotate. This ensures that the bearing sleeve is not loose when clamped, making the device more stable during use. When the ring 13 rotates, the arc-shaped sliding groove 17 on its upper surface will squeeze the guide rod 18, thereby driving multiple sliding strips 16 and multiple clamping blocks 19 to move synchronously along the groove of the I-shaped sliding groove 15, thus clamping the outer wall of the bearing sleeve, thereby achieving... The device can clamp and fix bearing sleeves of different sizes, making it flexible to adapt to different sizes of bearing sleeves, thereby improving the usability of the device. This allows for the processing of the inner wall of the bearing sleeve. When the outer wall needs to be processed, the self-locking motor 9 is rotated to move the slide bar 16 to the end face of the I-shaped slide groove 15. At this time, the bearing sleeve is put on multiple clamping blocks 19. Then, the self-locking motor 9 is reversed to make the other side of the clamping block 19 press against the inner wall of the bearing sleeve, thereby achieving the pressing of the inner wall and increasing the applicability of the device.

[0030] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A positioning device for machining miniature bearings, comprising a frame (1), characterized in that, The top of the frame (1) is equipped with a slide (6) via a movable component. A worm gear (12) is rotatably connected to one side of the slide (6). A power component for rotating the worm gear (12) is provided on one side of the slide (6). A threaded groove is provided on one side of the slide (6), and a screw is rotatably connected in the threaded groove. A through-type circular groove is provided on one side of the worm gear (12), and a circular ring (13) is fixedly connected in the circular groove. Multiple evenly distributed through-type arc-shaped slide grooves (17) are provided on one side of the circular ring (13). A placement seat (14) with the same center as the worm gear (12) is fixedly connected to one side of the slide (6). Multiple evenly distributed I-shaped slide grooves (15) are provided on one side of the placement seat (14). A slide bar (16) is slidably connected in the I-shaped slide groove (15). A guide rod (18) and a clamping block (19) are fixedly connected to one side of the slide bar (16).

2. The positioning device for micro bearing machining according to claim 1, wherein The moving component includes two stop bars (4), both of which are fixedly connected to the top of the frame (1). A lead screw (7) is rotatably connected between the two stop bars (4) via a bearing. A geared motor is fixedly connected to one side of one of the stop bars (4). The output shaft of the geared motor passes through the stop bar (4) and is fixed to the lead screw (7) via a coupling. The top of the frame (1) is provided with a guide component that allows its slide (6) to move horizontally.

3. The positioning device for micro bearing machining according to claim 2, wherein The guiding component consists of two guide rails (5), both of which are fixedly connected to the top of the frame (1).

4. The positioning device for micro bearing machining according to claim 1, wherein The power component includes two fixed blocks (10), which are fixedly connected to one side of the slide (6). A worm gear (11) is rotatably connected between the two fixed blocks (10) via a bearing, and one end of the worm gear (11) passes through the fixed block (10). A side plate (8) is fixedly connected to one side of the slide (6), and a self-locking motor (9) is fixedly connected to one side of the side plate (8). The output shaft of the self-locking motor (9) passes through the side plate (8) and is fixed to the worm gear (11) via a coupling.

5. The positioning device for micro bearing machining according to claim 1, wherein One side of the clamp (19) is a V-shaped surface, and the opposite side is an arc-shaped surface, and both surfaces are fixedly connected with rubber pads.

6. The positioning device for micro bearing machining according to claim 1, wherein The top of the frame (1) is provided with an opening slot (3).

7. The positioning device for micro bearing machining according to claim 6, wherein The frame (1) is provided with a collection box (2), and the collection box (2) is located directly below the opening slot (3).