Bearing press-fitting machine
By designing a semi-automatic bearing press machine, which adopts a double conveyor table and a double gripper structure, the problems of complex manual press-fitting and high cost of fully automatic press-fitting in existing technologies are solved. This achieves efficient and low-cost bearing assembly, meeting the production needs of small and medium-sized enterprises.
Patent Information
- Application Number
- CN202423104692.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-16
AI Technical Summary
In existing bearing press-fitting technologies, manual press-fitting is complex and prone to errors, while fully automatic CNC press-fitting equipment is expensive and difficult for small and medium-sized enterprises to afford. There is a lack of intermediate solutions that balance efficiency and cost.
A semi-automatic bearing press machine was designed, which adopts a symmetrically arranged double conveyor table and a double gripper structure with staggered heights. The automatic conveying and positioning stacking of parts is realized through gear transmission. Combined with cylinder control of clamping and 180-degree rotation, continuous production is achieved.
It reduces equipment costs, minimizes manual adjustments, improves work efficiency and assembly precision, and has continuous production capabilities, making it suitable for the production needs of small and medium-sized enterprises.
Smart Images

Figure CN223544562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bearing press-fitting machine. Background Technology
[0002] Bearing press-fitting is a crucial process in mechanical manufacturing, and its assembly quality directly impacts the operational performance and lifespan of machinery. Currently, bearing press-fitting primarily employs two methods: manual press-fitting and automated CNC press-fitting. While each method has its application scenarios in actual production, both also possess certain limitations.
[0003] The existing bearing press-fit process typically involves the following steps: First, the inner ring, outer ring, and rolling elements of the bearing are pre-assembled in a specific order; then, these components, such as the bearing cover, are pressed in using press-fitting equipment; finally, the press-fitting quality is inspected and confirmed. In manual press-fitting, operators need to complete multiple steps, including stacking, aligning, and pressing, in sequence. The entire process requires repeated operations and is time-consuming.
[0004] To improve production efficiency, some companies have adopted fully automated CNC press-fitting equipment. This type of equipment uses robots or automatic feeding systems to transport and position bearing components, and then a CNC system controls the pressing force and positional accuracy to achieve automated assembly. While this method significantly improves production efficiency and assembly accuracy, the high investment cost of the equipment often makes it unaffordable for small and medium-sized enterprises.
[0005] The main problems with existing bearing press-fitting machines are: in manual press-fitting, operators need to frequently stack and adjust the parts, which is not only labor-intensive, but also prone to affecting the assembly quality due to human error; while fully automatic CNC press-fitting equipment solves the efficiency and accuracy problems, its complex control system and expensive supporting facilities result in high equipment costs and high maintenance costs.
[0006] Meanwhile, in actual production, many companies do not require such complex automated systems for bearing press-fitting, but still want to improve the efficiency of existing manual press-fitting methods. This creates a technological gap: a lack of an intermediate solution that balances efficiency and cost between manual and fully automated processes.
[0007] Therefore, developing a bearing press-fitting machine that is simple in structure, easy to operate, and cost-effective is of significant practical importance. This press-fitting machine needs to simplify the operation process and improve work efficiency while ensuring basic press-fitting quality, and also possess a good cost-performance ratio to meet the actual production needs of a large number of small and medium-sized enterprises. Utility Model Content
[0008] The purpose of this invention is to provide a bearing press-fitting machine. This bearing press-fitting machine features low cost and high efficiency.
[0009] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0010] A bearing press-fitting machine includes: a frame; a worktable disposed in the middle of the frame; a mounting platform disposed in the middle of the worktable for mounting bearing components; a press-fitting device disposed above the mounting platform; and a conveying device disposed on both sides of the worktable. The conveying device includes: a guide rail disposed on the frame; a conveying platform horizontally slidable on the guide rail; a rotary motor disposed in the middle of the conveying platform; and a cylinder connected to the rotary motor. The cylinder is connected to a first gripper and a second gripper, and the cylinder is used to control the clamping and releasing of the first and second grippers. A drive rod one and a drive rod two are fixedly connected to one side of each of the two conveying platforms. A gear is provided between the drive rod one and the drive rod two.
[0011] The present invention is further configured such that the height of the first gripper is higher than the height of the second gripper, the first gripper is used to hold the bearing cap, and the second gripper is used to hold the outer ring of the bearing.
[0012] The present invention is further configured such that: a rotating shaft is connected to the middle of the gear, and a drive motor is connected to the rotating shaft.
[0013] The present invention is further configured such that: the drive motor drives the rotating shaft to rotate, causing the gear to drive drive rod one and drive rod two to move, thereby driving the two conveyor tables to move towards each other.
[0014] The present invention is further configured such that: a rotary motor is used to drive the first gripper and the second gripper to rotate.
[0015] In summary, this utility model has the following beneficial effects:
[0016] A semi-automatic design achieves a balance between manual and fully automatic pressing. The conveying device employs a symmetrically arranged double conveyor structure, coupled with a staggered double gripper design, enabling automatic conveying and positioning of bearing parts. This significantly reduces repetitive manual adjustments and lowers worker workload. The linkage mechanism uses gear transmission to drive the two conveyor tables to move synchronously in opposite directions, ensuring the synchronicity and positional accuracy of part conveying. The gripper assembly is controlled by a cylinder for clamping and releasing, and can rotate 180 degrees for the next cycle, enabling continuous production. This reduces equipment costs and facilitates later maintenance. By replacing manual stacking with automatic conveying and positioning, the single-piece production cycle is shortened, and batch production efficiency is improved. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0018] Figure 2 This is a schematic diagram of the rear view structure of an embodiment.
[0019] Reference numerals in the attached drawings: 1. Frame; 2. Workbench; 3. Mounting platform; 4. Pressing device; 5. Conveying device; 6. Guide rail; 7. Conveying platform; 8. Rotary motor; 9. Cylinder; 10. First gripper; 11. Second gripper; 12. Drive rod one; 13. Drive rod two; 14. Gear; 15. Rotating shaft; 16. Drive motor. Detailed Implementation
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0022] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] The present invention will be further described in detail below with reference to the accompanying drawings.
[0024] like Figure 1 , Figure 2 As shown, a bearing press-fitting machine includes a frame 1. A worktable 2 is provided in the middle of the frame 1. A mounting platform 3 for installing bearing components is provided in the middle of the worktable 2. The bearing outer ring and bearing cap are stacked on the mounting platform 3 and pressed together to install the bearing outer ring and the bearing housing on one side.
[0025] A pressing device 4 is installed above the mounting platform 3. The pressing device 4 moves up and down longitudinally. After the bearing components are stacked, the pressing device 4 moves downward to complete the pressing process of the bearing components. This is existing technology and will not be described in detail here.
[0026] The core technical solution of this application is as follows:
[0027] To achieve the technical objective of semi-automatic conveying of the bearing outer ring and bearing cap, this application provides conveying devices 5 on both sides of the workbench 2. Each conveying device 5 includes a guide rail 6 mounted on the frame 1. A conveying platform 7 is mounted on the guide rail 6. The conveying platform 7 can slide horizontally on the guide rail 6. A rotary motor 8 is located in the center of the conveying platform 7. The rotary motor 8 is connected to a cylinder 9. The cylinder 9 is connected to two grippers. The cylinder 9 controls the gripping and releasing process of the two grippers.
[0028] Correspondingly, the grippers corresponding to the two conveying devices 5 are respectively divided into a first gripper 10 and a second gripper 11. The first gripper 10 and the second gripper 11 are set at different heights, with the first gripper 10 being at a higher height than the second gripper 11. The first gripper 10 is used to hold the bearing cap, and the second gripper 11 is used to hold the outer ring of the bearing.
[0029] Two conveyor platforms 7 are respectively fixedly connected to one side of a drive rod 12 and a drive rod 13. A gear 14 is fitted between the drive rod 12 and the drive rod 13. A rotating shaft 15 is connected to the middle of the gear 14. A drive motor 16 is connected to the rotating shaft 15 to drive the rotating shaft 15 to rotate.
[0030] When the first gripper 10 and the second gripper 11 respectively clamp the corresponding bearing cap and bearing outer ring, the drive motor 16 operates, driving the rotating shaft 15 to rotate. The rotating shaft 15 drives the gear 14 to rotate, causing the drive rod 12 and drive rod 13 on the upper and lower sides of the gear 14 to move, thereby driving the two conveyor tables 7 to move towards each other. This causes the first gripper 10 and the second gripper 11 to move the parts to the top of the mounting platform 3 and release the parts. The bearing parts are then pressed down by the pressing device 4 to complete the pressing installation.
[0031] Then, the drive motor 16 reverses, causing the first gripper 10 and the second gripper 11 to reset. The rotation motor 8 then operates, causing the first gripper 10 and the second gripper 11 to rotate 180 degrees and clamp the new part. Repeating the above process makes the overall pressing process semi-automatic, reducing design costs and improving work efficiency and reducing safety hazards compared to a fully manual process.
[0032] Alternatively, corresponding conveyor belts can be set on both sides of the frame 1 to transport the corresponding parts, or the parts can be placed manually. However, this is not the main technical issue discussed in this application and will not be elaborated here.
[0033] The semi-automatic process achieves a balance between manual and fully automatic pressing. The conveying device 5 employs a symmetrically arranged double conveyor platform 7 structure, coupled with a staggered double gripper design, enabling automatic conveying and positioning of bearing parts. This significantly reduces repetitive manual adjustments and lowers worker workload. The linkage mechanism uses gear 14 to drive the two conveyor platforms 7 to move synchronously in opposite directions, ensuring the synchronicity and positional accuracy of part conveying. The gripper assembly is controlled by cylinder 9 for clamping and releasing, and can rotate 180 degrees for the next cycle, providing continuous production capability. This reduces equipment costs and facilitates later maintenance. Automatic conveying and positioning replaces manual stacking, shortening the single-piece production cycle and improving batch production efficiency.
[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A bearing press-fitting machine, characterized in that, include: Rack (1); A workbench (2) is located in the middle of the frame (1); Mounting platform (3), which is located in the middle of the workbench (2) and is used to mount bearing components; Press-fitting device (4), said press-fitting device (4) being disposed above the mounting platform (3); and A conveying device (5) is provided on both sides of the workbench (2); The conveying device (5) includes: Guide rail (6), the guide rail (6) is disposed on the frame (1); A conveyor table (7) is horizontally slidably mounted on the guide rail (6); A rotating motor (8) is disposed in the middle of the conveyor table (7); and Cylinder (9), which is connected to the rotary motor (8); The cylinder (9) is connected to a first gripper (10) and a second gripper (11), and the cylinder (9) is used to control the gripping and releasing of the first gripper (10) and the second gripper (11); One drive rod (12) and the other drive rod (13) are fixedly connected to one side of each of the two conveyor platforms (7); A gear (14) is provided between the first drive rod (12) and the second drive rod (13).
2. The bearing press-fitting machine according to claim 1, characterized in that, The first gripper (10) is set at a higher height than the second gripper (11). The first gripper (10) is used to hold the bearing cap, and the second gripper (11) is used to hold the outer ring of the bearing.
3. The bearing press-fitting machine according to claim 1, characterized in that, A rotating shaft (15) is connected to the middle of the gear (14), and a drive motor (16) is connected to the rotating shaft (15).
4. The bearing press-fitting machine according to claim 3, characterized in that, The drive motor (16) drives the rotating shaft (15) to rotate, which causes the gear (14) to drive the drive rod one (12) and the drive rod two (13) to move, thereby driving the two conveyor tables (7) to move towards each other.
5. The bearing press-fitting machine according to claim 1, characterized in that, The rotary motor (8) is used to drive the first gripper (10) and the second gripper (11) to rotate 180 degrees.