Bidirectional bearing press-fitting device

By designing a bidirectional bearing press-fitting device, the problem of multiple positioning required for bearing assembly in existing technologies has been solved, enabling simultaneous press-fitting of bearings at both ends of the drive shaft, thus improving operational efficiency and quality.

CN224073788UActive Publication Date: 2026-04-03JIANGSU HUIBO ROBOTICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, bearing assembly requires multiple positioning operations, which is cumbersome and affects production efficiency.

Method used

Design a bidirectional bearing press-fitting device, including a positioning mechanism, a press-fitting mechanism and a bearing loading mechanism, which can simultaneously press-fit bearings at both ends of a drive shaft and automatically load and unload them using a robot material handling mechanism.

Benefits of technology

This technology enables simultaneous press-fitting of bearings at both ends of the drive shaft, simplifying the operation process and improving press-fitting quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a bi-directional bearing press-fitting device which comprises a bottom plate, a positioning mechanism, two press-fitting mechanisms and a material taking mechanism, the positioning mechanism is arranged in the middle of the bottom plate and used for positioning a transmission shaft, and the two press-fitting mechanisms are oppositely arranged on the two sides of the positioning mechanism and can press bearings at the two ends of the transmission shaft at the same time. A bearing feeding mechanism is further arranged above each press-fitting mechanism, the bearing feeding mechanisms are used for feeding bearings to the press-fitting mechanisms, and the material taking mechanism is arranged on one side of the bottom plate, used for feeding and discharging and comprises a robot and a material taking clamping jaw arranged at the tail end of the robot. Bearings at the two ends of the transmission shaft can be pressed at the same time, repeated positioning is not needed, operation is more convenient and faster, and the bearing pressing quality and pressing efficiency are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of automated mechanical equipment technology, and in particular to a bidirectional bearing press-fitting device. Background Technology

[0002] In the assembly of transmission products such as gearboxes and reducers, it is generally necessary to assemble the drive shaft assembly first. In most drive shaft assemblies, there is a bearing at both ends of the drive shaft. Currently, when assembling the bearings, it is common practice to press-fit the bearing at one end first. When installing the bearing at the other end, the drive shaft must be removed, its direction changed, and it must be repositioned before a second press-fit is performed. This method requires multiple repositioning steps, is cumbersome, and significantly impacts production efficiency. Utility Model Content

[0003] The present invention aims to provide a bidirectional bearing press-fitting device to overcome the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a bidirectional bearing pressing device, including a base plate, a positioning mechanism, two pressing mechanisms, and a material handling mechanism. The positioning mechanism is located in the middle of the base plate and is used to position the transmission shaft. The two pressing mechanisms are located opposite each other on both sides of the positioning mechanism and can simultaneously press bearings onto both ends of the transmission shaft. Each pressing mechanism is also provided with a bearing feeding mechanism above it. The bearing feeding mechanism is used to feed the bearings to the pressing mechanism. The material handling mechanism is located on one side of the base plate and is used for loading and unloading. It includes a robot and a material handling gripper located at the end of the robot.

[0005] The pressing mechanism includes a bearing pressing cylinder, a pressing slide, and a pressing block. The bearing pressing cylinder is fixed on the top surface of the base plate, and its output end is provided with a floating joint. The floating joint is connected to the pressing slide. The pressing slide is provided with a slide rail that is slidably connected to it. The pressing slide is provided with a pressing block on the side away from the bearing pressing cylinder. The pressing block is provided with an arc-shaped opening groove for placing the bearing.

[0006] The bearing feeding mechanism includes a feeding seat, a material cylinder, a pushing cylinder, a pushing plate, and a guide seat. The feeding seat is positioned above the pressing mechanism. A pushing cylinder is fixed at one end of the top of the feeding seat, and a material cylinder is fixed at the other end of the top. A pushing plate is provided at the output end of the pushing cylinder. The material cylinder is used for storing bearing materials and has a discharge port at its bottom. The guide seat is located at one end of the feeding seat, and a guide groove is provided on the side away from the pushing cylinder.

[0007] Furthermore, in the aforementioned bidirectional bearing press-fitting device, the positioning mechanism includes a positioning seat, a rotary pressing cylinder, and a pressing plate. The top of the positioning seat is provided with a groove for placing the drive shaft. The rotary pressing cylinder is located on one side of the positioning seat, and its output end is provided with a pressing plate. The pressing plate can press the drive shaft on the positioning seat through the rotary pressing cylinder.

[0008] Furthermore, in the aforementioned bidirectional bearing press-fitting device, the positioning mechanism further includes a support assembly for supporting the suspended end of the transmission shaft. The support assembly is located on one side of the rotary pressing cylinder and includes a support pushing cylinder, a lifting cylinder, and a support block. The output end of the support pushing cylinder is provided with the lifting cylinder, and the output end of the lifting cylinder is provided with the support block. The top of the support block is provided with an arc-shaped support groove.

[0009] Furthermore, in the aforementioned bidirectional bearing press-fitting device, the press-fitting block is also equipped with a check cylinder, which can extend into the arc-shaped opening groove and abut against the bearing inside the arc-shaped opening groove.

[0010] Furthermore, in the aforementioned bidirectional bearing press-fitting device, the guide groove includes a guide inclined surface, a guide plane located at the upper end of the guide inclined surface, and a guide vertical surface located at the lower end of the guide inclined surface. The guide plane is connected to the bottom surface of the discharge port, and the guide vertical surface is connected to the arc-shaped opening groove on the press-fitting block.

[0011] Furthermore, the aforementioned bidirectional bearing press-fitting device also includes a baffle mechanism. The guide chute is open on the side away from the material cylinder. The baffle mechanism includes a baffle cylinder and a baffle plate. The baffle cylinder is fixedly connected to the loading seat through a cylinder mounting base, and its output end is located on the baffle plate. The baffle plate is arranged parallel to the guide vertical plane. When loading the bearing, the baffle plate descends to block the opening end of the guide chute and the arc-shaped opening groove. The baffle plate and the guide vertical plane form a slide that connects with the arc-shaped opening groove.

[0012] Furthermore, the aforementioned bidirectional bearing pressing device also includes two outer covers, each of which covers the exterior of the corresponding pressing mechanism and bearing feeding mechanism, and the outer cover is provided with a transparent observation port.

[0013] Compared with existing technologies, the advantages of this invention are: it can simultaneously press-fit bearings at both ends of a drive shaft without requiring multiple positioning steps, making operation more convenient and faster, and greatly improving the quality and efficiency of bearing pressing. Furthermore, the bearings can automatically slide into the pressing block via a pusher, eliminating the need for a material handling mechanism, simplifying the equipment and further improving bearing pressing efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the bidirectional bearing press-fitting device of this utility model;

[0016] Figure 2 This is a front view of the bidirectional bearing press-fitting device of this utility model;

[0017] Figure 3 This is a partial structural schematic diagram of the bidirectional bearing press-fitting device of this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection between the pressing block and the guide seat of the bidirectional bearing pressing device of this utility model;

[0019] Figure 5 This is a schematic diagram of the material handling mechanism of the bidirectional bearing press-fitting device of this utility model;

[0020] In the diagram: 1. Base plate;

[0021] 2. Positioning mechanism; 21. Positioning seat 1; 22. Rotary pressing cylinder 1; 23. Pressing plate 1; 24. Support pushing cylinder; 25. Lifting cylinder 1; 26. Support block;

[0022] 3. Press-fitting mechanism; 31. Bearing press-fitting cylinder; 32. Press-fitting slide; 33. Press-fitting block; 331. Arc-shaped opening groove; 34. Floating joint; 35. Check cylinder;

[0023] 4. Bearing feeding mechanism; 41. Feeding seat; 42. Material cylinder; 43. Pushing cylinder; 44. Pushing plate; 45. Guide seat; 451. Guide groove;

[0024] 5. Material blocking mechanism; 51. Material blocking cylinder; 52. Material blocking plate;

[0025] 6. Material handling mechanism; 61. Robot; 62. Material handling gripper;

[0026] 7. Outer cover. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] like Figure 1-5 As shown, a bidirectional bearing pressing device includes a base plate 1, a positioning mechanism 2, two pressing mechanisms 3, and a material handling mechanism 6. The positioning mechanism 2 is located in the middle of the base plate 1 and is used to position the drive shaft. The two pressing mechanisms 3 are located opposite each other on both sides of the positioning mechanism 2 and can simultaneously press bearings onto both ends of the drive shaft. Each pressing mechanism 3 is also provided with a bearing feeding mechanism 4 above it. The bearing feeding mechanism 4 is used to feed the bearings to the pressing mechanism 3. The material handling mechanism 6 is located on one side of the base plate 1 and is used for loading and unloading. It includes a robot 61 and a material handling gripper 62 located at the end of the robot 61.

[0030] like Figure 3-4 As shown, the pressing mechanism 3 includes a bearing pressing cylinder 31, a pressing slide 32, and a pressing block 33. The bearing pressing cylinder 31 is fixed to the top surface of the base plate 1, and its output end is provided with a floating joint 34. The floating joint 34 is connected to the pressing slide 32. A slide rail is provided below the pressing slide 32 and is slidably connected to it. A pressing block 33 is provided on the side of the pressing slide 32 away from the bearing pressing cylinder 31. The pressing block 33 is provided with an arc-shaped opening groove 331 for placing the bearing. A check cylinder 35 is also provided on the pressing block 33. The check cylinder 35 can extend into the arc-shaped opening groove 331 and abut against the bearing in the arc-shaped opening groove 331. In this embodiment, the check cylinder 35 is a needle cylinder, and a detection sensor for detecting whether the bearing is in place is provided on the bottom surface of the arc-shaped opening groove 35.

[0031] like Figure 3-4 As shown, the bearing feeding mechanism 4 includes a feeding seat 41, a material cylinder 42, a pushing cylinder 43, a pushing plate 44, and a guide seat 45. The feeding seat 41 is positioned above the pressing mechanism 3. The pushing cylinder 43 is fixed to one end of its top, and the material cylinder 42 is fixed to the other end. The output end of the pushing cylinder 43 is provided with a pushing plate 44. The material cylinder 42 is used for storing bearing material and has a discharge port at its bottom. The guide seat 45 is located at one end of the feeding seat 41, and a guide groove 451 is provided on the side away from the pushing cylinder 43. The guide groove 451 includes a guide inclined surface, a guide plane at the upper end of the guide inclined surface, and a guide vertical surface at the lower end of the guide inclined surface. The guide plane receives the discharge port of the material cylinder, and the guide vertical surface connects with the arc-shaped opening groove 331 on the pressing block 33.

[0032] like Figure 1-4 As shown, the aforementioned bidirectional bearing press-fitting device also includes a baffle mechanism 5. The baffle mechanism 5 includes a baffle cylinder 51 and a baffle plate 52. The baffle cylinder 51 is fixedly connected to the loading seat 41 via a cylinder mounting base, and its output end is located on the baffle plate 52. The guide groove 451 has an opening on the side away from the material cylinder 42. The baffle plate 52 is parallel to the guide vertical plane, and when the bearing is loaded, the baffle plate 52 descends to block the opening ends of the guide groove 451 and the arc-shaped opening groove 331. The baffle plate 52 and the guide vertical plane form a slide that connects with the arc-shaped opening groove 331. The baffle mechanism allows the bearing to slide automatically, smoothly, and accurately into the arc-shaped opening groove 331, preventing the bearing from falling out and improving the efficiency of bearing loading and press-fitting.

[0033] Example 2

[0034] Based on the structure of Example 1, such as Figure 1-3 As shown, the positioning mechanism 2 includes a positioning seat 21, a rotary pressing cylinder 22, and a pressing plate 23. The top of the positioning seat 21 is provided with a groove for placing the transmission shaft. The rotary pressing cylinder 22 is located on one side of the positioning seat 21, and its output end is provided with the pressing plate 23. The pressing plate 23 can press the transmission shaft on the positioning seat 21 through the rotary pressing cylinder 22.

[0035] like Figure 1-3 As shown, the positioning mechanism 2 also includes a support assembly for supporting the suspended end of the transmission shaft. The support assembly is located on one side of the rotary pressing cylinder 22 and includes a support pushing cylinder 24, a lifting cylinder 25, and a support block 26. The output end of the support pushing cylinder 24 is provided with the lifting cylinder 25, and the output end of the lifting cylinder 25 is provided with the support block 26. The top of the support block 26 is provided with an arc-shaped support groove.

[0036] like Figure 1-3 As shown, the bidirectional bearing press-fitting device of this embodiment also includes two outer covers 7. Each outer cover 7 covers the exterior of the corresponding press-fitting mechanism 3 and bearing feeding mechanism 4, and the outer cover 7 is provided with a transparent observation port. The material cylinder 42 extends outside the outer cover 7, and the material blocking mechanism 5 is fixed on the outer cover 7.

[0037] The working principle of this utility model is as follows: When assembling the bearing, the material picking mechanism 6 clamps the transmission shaft and places it into the groove of the positioning seat 21. Then, the support pushing cylinder 24 and the lifting cylinder 25 are activated to align the support block 26 with the positioning seat 21 and support the suspended end of the transmission shaft. Then, the rotary pressing cylinder 22 is activated to drive the pressing plate 23 to press the transmission shaft, and the transmission shaft is completely positioned. Simultaneously, the bearing feeding mechanisms 4 on both sides of the positioning mechanism 2 feed the bearings. The bearings slide into the arc-shaped opening slots 331 of the corresponding pressing mechanism through the guide grooves 451 on the guide seat 45. The pressing mechanisms 3 on both sides can be started at the same time and move towards the positioning mechanism 2 in the middle to press the bearings on the pressing block 33 onto both ends of the transmission shaft. After pressing into place, the bearing pressing cylinder 31 retracts, and the pressing of the bearings at both ends of the transmission shaft is completed at the same time. While the bearing pressing cylinder 31 retracts, the check cylinder 35 extends and abuts against the bearing to prevent the retraction from causing the bearing to retract, thus completing the pressing of the bearings on the transmission shaft. Then, the material taking mechanism 6 takes out the transmission shaft with the bearings pressed and unloads it to the next process.

[0038] In summary, this utility model can simultaneously press-fit bearings at both ends of a drive shaft without requiring multiple positioning steps, making the operation more convenient and faster, and greatly improving the quality and efficiency of bearing pressing. Furthermore, the bearings can automatically slide into the pressing block via a pusher, eliminating the need for a material handling mechanism, simplifying the equipment and further improving bearing pressing efficiency.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bidirectional bearing press-fitting device, characterized in that: The system includes a base plate, a positioning mechanism, two pressing mechanisms, and a material handling mechanism. The positioning mechanism is located in the middle of the base plate and is used to position the drive shaft. The two pressing mechanisms are located opposite each other on both sides of the positioning mechanism and can simultaneously press bearings onto both ends of the drive shaft. Each pressing mechanism is also equipped with a bearing feeding mechanism above it, which is used to feed the bearings to the pressing mechanism. The material handling mechanism is located on one side of the base plate and is used for loading and unloading materials. The system includes a robot and a material handling gripper located at the end of the robot. The pressing mechanism includes a bearing pressing cylinder, a pressing slide, and a pressing block. The bearing pressing cylinder is fixed on the top surface of the base plate, and its output end is provided with a floating joint. The floating joint is connected to the pressing slide. The pressing slide is provided with a slide rail that is slidably connected to it. The pressing slide is provided with a pressing block on the side away from the bearing pressing cylinder. The pressing block is provided with an arc-shaped opening groove for placing the bearing. The bearing feeding mechanism includes a feeding seat, a material cylinder, a pushing cylinder, a pushing plate, and a guide seat. The feeding seat is positioned above the pressing mechanism. A pushing cylinder is fixed at one end of the top of the feeding seat, and a material cylinder is fixed at the other end of the top. A pushing plate is provided at the output end of the pushing cylinder. The material cylinder is used for storing bearing materials and has a discharge port at its bottom. The guide seat is located at one end of the feeding seat, and a guide groove is provided on the side away from the pushing cylinder.

2. The bidirectional bearing press-fitting device according to claim 1, characterized in that: The positioning mechanism includes a positioning seat, a rotary pressing cylinder, and a pressing plate. The top of the positioning seat is provided with a groove for placing the transmission shaft. The rotary pressing cylinder is located on one side of the positioning seat, and its output end is provided with a pressing plate. The pressing plate can press the transmission shaft on the positioning seat through the rotary pressing cylinder.

3. The bidirectional bearing press-fitting device according to claim 2, characterized in that: The positioning mechanism also includes a support assembly for supporting the suspended end of the transmission shaft. The support assembly is located on one side of the rotary pressing cylinder and includes a support pushing cylinder, a lifting cylinder, and a support block. The output end of the support pushing cylinder is provided with the lifting cylinder, and the output end of the lifting cylinder is provided with the support block. The top of the support block is provided with an arc-shaped support groove.

4. The bidirectional bearing press-fitting device according to claim 1, characterized in that: The press block is also equipped with a check cylinder, which can extend into the arc-shaped opening groove and abut against the bearing in the arc-shaped opening groove.

5. The bidirectional bearing press-fitting device according to claim 1, characterized in that: The guide chute includes a guide inclined surface, a guide plane at the upper end of the guide inclined surface, and a guide vertical surface at the lower end of the guide inclined surface. The guide plane is connected to the bottom surface of the discharge port, and the guide vertical surface is connected to the arc-shaped opening groove on the pressing block.

6. The bidirectional bearing press-fitting device according to claim 5, characterized in that: It also includes a material blocking mechanism. The guide chute is open on the side away from the material cylinder. The material blocking mechanism includes a material blocking cylinder and a material blocking plate. The material blocking cylinder is fixedly connected to the feeding seat through a cylinder mounting seat. Its output end is located on the material blocking plate. The material blocking plate is arranged parallel to the guide vertical plane. When the feeding bearing is in operation, the material blocking plate descends to block the opening end of the guide chute and the arc-shaped opening groove. The material blocking plate and the guide vertical plane form a slide that connects with the arc-shaped opening groove.

7. The bidirectional bearing press-fitting device according to claim 1, characterized in that: It also includes two outer covers, each of which covers the exterior of the corresponding pressing mechanism and bearing feeding mechanism, and the outer cover is provided with a transparent observation port.