Bearing press-fitting tool
By designing a bearing press-fitting fixture that combines a hydraulic cylinder and a sensor, the problem of existing fixtures being limited to single-type press-fitting was solved. This enabled flexible press-fitting and convenient disassembly of two types of bearings, improving processing efficiency and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LIK MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-16
Smart Images

Figure CN224359686U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bearing processing, and in particular to a bearing press-fitting fixture. Background Technology
[0002] Bearings are core components in mechanical equipment that support rotating bodies, reduce friction, and ensure rotational accuracy. They are mainly divided into two categories: rolling bearings and sliding bearings, and are widely used in automobiles, machine tools, aerospace and other fields.
[0003] During the production of existing bearings, press-fitting is usually required to ensure that the bearings can be securely installed on the shaft. However, existing press-fitting fixtures can usually only be used for press-fitting one type of bearing, which results in poor convenience and flexibility during press-fitting. Therefore, the convenience and flexibility of existing bearing press-fitting fixtures can be further improved. Utility Model Content
[0004] To further improve the convenience and flexibility of existing bearing press-fitting fixtures during use, this application provides a bearing press-fitting fixture.
[0005] The bearing press-fitting fixture provided in this application adopts the following technical solution: a bearing press-fitting fixture includes a frame, a base is fixedly installed inside the frame, a hydraulic column is provided on the top of the frame, and a press-fitting mechanism is provided on the top of the base;
[0006] The pressing mechanism includes two guide rails symmetrically fixedly installed on the top of the base. The same sliding seat is slidably installed on the two guide rails. A first positioning seat and a second positioning seat are fixedly installed on the top of the sliding seat, respectively. A handle is fixedly installed on one side of the sliding seat. A side plate is fixedly installed on one side of the base. A locking seat is fixedly installed on the top of the sliding seat. A threaded post is provided through the top of the locking seat. A handle is fixedly installed on the top of the threaded post. Two positioning holes are symmetrically opened on the top of the side plate. A first sensor and a second sensor are respectively provided in the side plate.
[0007] By adopting the above technical solution, by pulling the handle, the sliding seat can be moved and the first positioning seat can be moved to the bottom of the hydraulic column. At this time, by turning the handle, the handle will rotate and drive the threaded column to move downward and into the corresponding positioning hole, and the position of the threaded column will be sensed by the corresponding first or second sensor.
[0008] By pressing down with a hydraulic column, the bearing can be press-fitted, thus enabling press-fitting of two types of bearings and improving the convenience and flexibility of the press-fitting process.
[0009] Preferably, each of the threaded posts is matched with two corresponding positioning holes.
[0010] By adopting the above technical solution, the threaded post is matched with two corresponding positioning holes, which facilitates locking installation.
[0011] Preferably, the sensing ends of the first and second sensors are both located below the corresponding positioning holes and are arranged parallel to the threaded post.
[0012] By adopting the above technical solution, the sensing ends of the first and second sensors are both located below the corresponding positioning holes and are arranged parallel to the threaded post, which facilitates sensing.
[0013] Preferably, the two positioning holes are arranged parallel to the corresponding first and second sensors, respectively.
[0014] By adopting the above technical solution, two positioning holes are set parallel to the corresponding first and second sensors, respectively, thereby enabling the sensing of two positions.
[0015] Preferably, a box is fixedly installed on one side of the side plate, and a mounting groove is provided on one side of the box, with an arrival alarm installed in the mounting groove.
[0016] By adopting the above technical solution and setting up a box, an auxiliary installation function can be achieved.
[0017] Preferably, the arrival alarms are all connected to the first sensor and the second sensor via signal connection.
[0018] By adopting the above technical solution, the arrival alarm is connected to the first and second sensors for signal transmission, which facilitates alarm use.
[0019] Preferably, a positioning plate is slidably installed inside the box, a fixing sleeve is fixedly installed on the top inner wall of the box, a sleeve rod is slidably installed inside the fixing sleeve, one side of the sleeve rod is fixedly installed to the positioning plate, two fixing rods are symmetrically fixedly installed on one side of the positioning plate, one top end of each of the two fixing rods slides through the top of the box and is fixedly installed with the same pull plate, and each of the two fixing rods is fitted with a corresponding spring, and the two ends of the two springs are respectively fixedly installed on the sides of the box and the positioning plate that are close to each other.
[0020] By adopting the above technical solution, pulling the pull plate upward will cause the fixed column and positioning plate to move upward as well. At this time, the fixed column moves to the outside of the box, which can compress the spring inside the box, thereby releasing the positioning installation of the alarm device. Therefore, it is convenient to disassemble, replace or maintain it later.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. This application employs a first positioning seat and the like. By pulling the handle, the sliding seat can be moved, and the first positioning seat can be moved below the hydraulic column. At this time, by rotating the handle, the threaded column will move downward and into the corresponding positioning hole. The position is sensed by the corresponding first or second sensor, and then the bearing can be pressed down by the hydraulic column. Therefore, it can perform press-fitting processing on two types of bearings and improve the convenience and flexibility of bearing press-fitting processing.
[0023] 2. This application utilizes a positioning plate and other components. By pulling the plate upwards, the plate moves upwards, causing the fixing post and positioning plate to move upwards as well. At this point, the fixing post moves to the outside of the box, which compresses the spring inside the box, thereby releasing the positioning of the alarm device. This facilitates its later disassembly, replacement, or maintenance. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a bearing press-fitting fixture according to an embodiment of this application;
[0025] Figure 2 This is a schematic diagram illustrating the overall press-fit structure, which is the main feature of this application embodiment;
[0026] Figure 3 This is a schematic diagram illustrating the main disassembly and assembly structure of the embodiments of this application;
[0027] Figure 4 This is a partial unfolded schematic diagram illustrating the main disassembly and assembly structure in the embodiments of this application;
[0028] Reference numerals: 1. Frame; 2. Base; 3. Hydraulic column; 4. Side plate; 5. Box body; 6. Guide rail; 7. Sliding seat; 8. First positioning seat; 9. Second positioning seat; 10. Handle; 11. Threaded column; 12. Handle; 13. Positioning hole; 14. First sensor; 15. Second sensor; 16. Locking seat; 17. Mounting slot; 18. Positioning alarm; 19. Pull plate; 20. Fixing sleeve; 21. Sleeve rod; 22. Fixing rod; 23. Spring; 24. Positioning plate. Detailed Implementation
[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0030] This application discloses a bearing press-fitting fixture.
[0031] Reference Figure 1-3A bearing press-fitting fixture includes a frame 1, a base 2 fixedly installed in the frame 1, a hydraulic column 3 set on the top of the frame 1 (the hydraulic column 3 is a prior art product in the field, so its specific structure and use and installation process are not described in detail), a press-fitting mechanism set on the top of the base 2, and a disassembly and assembly mechanism set on the press-fitting mechanism.
[0032] The pressing mechanism includes two guide rails 6 symmetrically fixedly installed on the top of the base 2. The same sliding seat 7 is slidably installed on the two guide rails 6. The top of the sliding seat 7 is respectively fixedly installed with a first positioning seat 8 and a second positioning seat 9. A handle 10 is fixedly installed on one side of the sliding seat 7. A side plate 4 is fixedly installed on one side of the base 2. A locking seat 16 is fixedly installed on the top of the sliding seat 7. A threaded post 11 is provided through the top of the locking seat 16.
[0033] The threaded post 11 is fixedly mounted with a handle 12 on its top. The top of the side plate 4 has two symmetrically opened positioning holes 13. The side plate 4 is equipped with a first sensor 14 and a second sensor 15. The threaded post 11 is matched with the two corresponding positioning holes 13. The sensing ends of the first sensor 14 and the second sensor 15 are located below the corresponding positioning holes 13 and are parallel to the threaded post 11. The two positioning holes 13 are parallel to the corresponding first sensor 14 and second sensor 15.
[0034] In use, by pulling the handle 10, the sliding seat 7 can be moved, and the first positioning seat 8 can be moved to the bottom of the hydraulic column 3. At this time, by turning the handle 12, the handle 12 will rotate and drive the threaded column 11 to move downward and into the corresponding positioning hole 13, and its position will be sensed by the corresponding first sensor 14 or second sensor 15.
[0035] By pressing down with the hydraulic cylinder 3, the bearing can be press-fitted, thus enabling press-fitting of two types of bearings and improving the convenience and flexibility of the bearing press-fitting process.
[0036] Reference Figure 3-4The disassembly and assembly mechanism includes a box 5 fixedly installed on one side of the side plate 4, an installation groove 17 opened on one side of the box 5, an arrival alarm 18 installed in the installation groove 17, the arrival alarm 18 being signal connected to the first sensor 14 and the second sensor 15, a positioning plate 24 slidably installed inside the box 5, a fixing sleeve 20 fixedly installed on the top inner wall of the box 5, a sleeve rod 21 slidably installed inside the fixing sleeve 20, one side of the sleeve rod 21 being fixedly installed to the positioning plate 24, two fixing rods 22 being symmetrically fixedly installed on one side of the positioning plate 24, the top end of each of the two fixing rods 22 slidingly penetrating the top of the box 5 and fixedly installed with the same pull plate 19, and corresponding springs 23 being sleeved on each of the two fixing rods 22, the two ends of the two springs 23 being fixedly installed on the sides of the box 5 and the positioning plate 24 that are close to each other.
[0037] When in use, by pulling the pull plate 19 upward, the pull plate 19 moves upward and drives the fixing column 22 and the positioning plate 24 to move upward as well. At this time, the fixing column 22 moves to the outside of the box 5, thereby compressing the spring 23 inside the box 5, and thus releasing the positioning installation of the position alarm 18, which is convenient for later disassembly, replacement or maintenance.
[0038] The implementation principle of a bearing press-fit fixture in this application embodiment is as follows: In use, by installing two types of bearings on corresponding first positioning seats 8 and second positioning seats 9, the handle 10 can be pulled to move the sliding seat 7 and move the first positioning seat 8 below the hydraulic column 3. Then, by rotating the handle 12, the threaded column 11 will move downward and into the corresponding positioning hole 13. The position is sensed by the corresponding first sensor 14 or second sensor 15. When the threaded column 11 contacts the corresponding first sensor 14 or second sensor 15, the position alarm 18 will sound an alarm and the positioning installation can be completed. Then, the hydraulic column 3 can be pressed down to complete the press-fit of the bearing. Therefore, two types of bearings can be press-fitted, which can improve the convenience and flexibility of bearing press-fitting.
[0039] By pulling the pull plate 19 upward, the pull plate 19 moves upward and drives the fixing column 22 and the positioning plate 24 to move upward as well. At this time, the fixing column 22 moves to the outside of the box 5, thereby compressing the spring 23 inside the box 5, and thus releasing the positioning installation of the position alarm 18, which is convenient for later disassembly, replacement or maintenance.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A bearing press-fitting fixture, comprising a frame (1), characterized in that: A base (2) is fixedly installed inside the frame (1), a hydraulic column (3) is provided on the top of the frame (1), and a pressing mechanism is provided on the top of the base (2). The pressing mechanism includes two guide rails (6) symmetrically fixedly installed on the top of the base (2). The same sliding seat (7) is slidably installed on the two guide rails (6). The top of the sliding seat (7) is fixedly installed with a first positioning seat (8) and a second positioning seat (9). A handle (10) is fixedly installed on one side of the sliding seat (7). A side plate (4) is fixedly installed on one side of the base (2). A locking seat (16) is fixedly installed on the top of the sliding seat (7). A threaded post (11) is provided through the top of the locking seat (16). A handle (12) is fixedly installed on the top of the threaded post (11). Two positioning holes (13) are symmetrically opened on the top of the side plate (4). A first sensor (14) and a second sensor (15) are respectively provided in the side plate (4).
2. The bearing press-fitting fixture according to claim 1, characterized in that: Each threaded post (11) is matched with two corresponding positioning holes (13).
3. The bearing press-fitting fixture according to claim 1, characterized in that: The sensing ends of the first sensor (14) and the second sensor (15) are both located below the corresponding positioning hole (13) and are arranged parallel to the threaded post (11).
4. The bearing press-fitting fixture according to claim 1, characterized in that: The two positioning holes (13) are arranged parallel to the corresponding first sensor (14) and second sensor (15).
5. The bearing press-fitting fixture according to claim 1, characterized in that: A box (5) is fixedly installed on one side of the side plate (4), and an installation groove (17) is provided on one side of the box (5). An arrival alarm (18) is provided in the installation groove (17).
6. The bearing press-fitting fixture according to claim 5, characterized in that: The arrival alarm (18) is connected to the first sensor (14) and the second sensor (15) via signal connection.
7. The bearing press-fitting fixture according to claim 5, characterized in that: A positioning plate (24) is slidably installed inside the box body (5). A fixing sleeve (20) is fixedly installed on the inner top wall of the box body (5). A sleeve rod (21) is slidably installed inside the fixing sleeve (20). One side of the sleeve rod (21) is fixedly installed with the positioning plate (24). Two fixing rods (22) are symmetrically fixedly installed on one side of the positioning plate (24). The top ends of the two fixing rods (22) slide through the top of the box body (5) and are fixedly installed with the same pull plate (19). A corresponding spring (23) is sleeved on each of the two fixing rods (22). The two ends of the two springs (23) are respectively fixedly installed on the side of the box body (5) and the positioning plate (24) that are close to each other.