Motor rotor riveting and pressing auxiliary tool
By designing an auxiliary tooling for riveting and pressing motor rotors, consisting of a locking base plate, a positioning base, and reinforcing components, the problem of positioning offset during the riveting process of rotors with special structures was solved, achieving high-precision riveting operations and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 苏州博特蒙电机有限公司
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-24
AI Technical Summary
Existing riveting fixtures cannot effectively adapt to and securely clamp motor rotors with special structures, resulting in positioning misalignment, inaccurate rivet pressing positions, or insufficient pressing force, which affects product qualification rate and production efficiency.
An auxiliary tooling for riveting and pressing motor rotors was designed, comprising a locking base plate, a positioning base, guide columns, positioning blocks, and reinforcing components. Through precise positioning and reinforcement structures, rotor displacement and positional deviation are prevented, ensuring the accuracy and stability of the riveting operation.
It significantly improves the positional accuracy and crimping rate of riveting operations, reduces the defect rate and rework costs, and enhances production efficiency and product quality.
Smart Images
Figure CN224555406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor manufacturing, and in particular to an auxiliary tooling for riveting and pressing motor rotors. Background Technology
[0002] Against the backdrop of the rapid development of the new energy vehicle industry and the surge in demand for motor rotors, rotor riveting is a key process in motor manufacturing. Traditionally, conventional riveting fixtures have been used to position and fix rotors of standard size and structure for rivet crimping operations. These fixtures are usually designed based on the size and structure of common rotors to serve standardized production processes.
[0003] However, with the diversification of products, some motor rotors have special structural designs. For example, their balance blocks and iron cores are significantly larger than those of conventional models, resulting in overall structural characteristics that differ from standard rotors. Existing conventional riveting fixtures cannot effectively adapt to and securely clamp such special rotors. This mismatch makes it easy for rotor positioning to deviate, rivet pressing positions to be inaccurate, or insufficient pressing force to occur during the riveting process. These quality problems not only directly reduce the product qualification rate, but also often force the production line to scrap materials and re-process them, thereby significantly increasing manufacturing costs and seriously dragging down overall production efficiency.
[0004] Therefore, it is necessary to propose an auxiliary tooling for riveting and pressing motor rotors to solve the above problems. Utility Model Content
[0005] The main purpose of this utility model is to provide an auxiliary tooling for riveting and pressing motor rotors, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An auxiliary tooling for riveting and pressing motor rotors includes a rotor body and a locking base plate bolted to the worktable of a riveting equipment. A positioning base is mounted on the upper end of the locking base plate. A first positioning post is provided on one side of the upper end of the positioning base to support a balance block at one end of the rotor body. A second positioning post is provided on the other side of the upper end of the positioning base to support one bottom end of the rotor body. A guide post is provided in the middle of the upper end of the positioning base for insertion into a central hole in the rotor body. A positioning block is provided on the opposite side of the top of the positioning base to limit the side of the balance block at one end of the rotor body. Locking fixing posts are embedded at the four corners of the locking base plate. Anti-misalignment blocks are provided on the upper ends of the locking fixing posts, with one end of the anti-misalignment block corresponding to the balance block at one end of the rotor body and the other end corresponding to the end of the rotor body.
[0007] Preferably, the anti-misalignment block is provided with a through hole corresponding to the locking and fixing post. The anti-misalignment block is movably sleeved on the upper end of the locking and fixing post through the through hole, and the diameters of the upper and lower ends of the locking and fixing post are smaller than the diameter of the middle part.
[0008] Preferably, the upper edge of the guide post is chamfered.
[0009] Preferably, the device further includes a reinforcement component, which includes a longitudinal groove disposed at the bottom of the locking base plate. A transverse groove is connected to the upper end of the longitudinal groove. A lead screw is rotatably disposed on the inner side of the transverse groove. One end of the lead screw extends to the outer side of the locking base plate and is provided with a knob. A moving block is threaded onto the lead screw. A traction rod is movably disposed at the bottom of the moving block. A lifting block is vertically movably connected to the upper inner side of the longitudinal groove. An abutment block is vertically movably connected to the lower inner side of the longitudinal groove. An elastic element is disposed between the abutment block and the lifting block. The lower end of the traction rod is movably connected to the lifting block.
[0010] Preferably, bearings are embedded at both ends of the transverse groove, and the two ends of the lead screw are fixed to the inner wall of the bearings.
[0011] Preferably, the elastic element is a spring.
[0012] Preferably, the inner wall of the transverse groove is provided with a guide rail, and one end of the moving block is movably guided by the guide rail.
[0013] Compared with the prior art, this utility model provides an auxiliary tooling for riveting and pressing motor rotors, which has the following beneficial effects: This auxiliary tooling for riveting and pressing motor rotors, through precise positioning, utilizes a central guide post embedded in the center hole of the rotor body to prevent forward and backward movement. The first and second positioning posts on both sides provide stable support for the rotor body, while the positioning blocks on both sides lock the balance block to prevent rotation. Furthermore, the anti-misalignment blocks, in conjunction with the locking and fixing posts, allow for quick and accurate positioning of the first and second positioning posts when fixing the rotor body, thus fundamentally solving the displacement problem of the rotor body during the riveting process. This effectively prevents operator placement errors and positional deviations. Ultimately, these design features work synergistically to significantly improve the positional accuracy and pressing success rate of the riveting operation, reduce the defect rate and rework costs, thereby improving production efficiency and product quality. It has already been verified and promoted in actual production lines. This auxiliary tooling for riveting and pressing motor rotors, through its reinforced components, increases the stability of the locking base plate after it is fixed to the riveting equipment workbench. Utilizing the continuous elastic force of the elastic element in the reinforced components, it increases the axial pressure at the threaded connection between the locking base plate and the bolt mounting position of the riveting equipment workbench, thereby preventing the possibility of loosening at the bolt mounting position of the locking base plate and the riveting equipment workbench. Reinforcement is performed after fixing and removed before disassembly, making it easy to operate and adaptable to the frequent stresses experienced by the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the present invention in its disassembled state; Figure 3 This is a utility model Figure 2 A structural diagram from another perspective based on the above; Figure 4 This is a structural schematic diagram of the positioning base of this utility model; Figure 5 This is a partial cross-sectional structural diagram of the locking base plate of this utility model.
[0015] In the diagram: 1. Locking base plate; 2. Positioning base; 3. Positioning block; 4. First positioning post; 5. Guide post; 6. Locking fixing post; 7. Anti-misalignment block; 8. Rotor body; 9. Knob; 10. Through hole; 11. Second positioning post; 12. Horizontal groove; 13. Longitudinal groove; 14. Abutment block; 15. Lifting block; 16. Elastic element; 17. Guide rail; 18. Lead screw; 19. Bearing; 20. Moving block; 21. Traction rod. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0017] like Figure 1-5As shown, an auxiliary tooling for riveting and pressing a motor rotor includes a rotor body 8 and a locking base plate 1 bolted to the worktable of a riveting equipment. A positioning base 2 is mounted on the upper end of the locking base plate 1. A first positioning post 4 is provided on one side of the upper end of the positioning base 2 to support a balance block at one end of the rotor body 8. A second positioning post 11 is provided on the other side of the upper end of the positioning base 2 to support one bottom end of the rotor body 8. A guide post 5 is provided in the middle of the upper end of the positioning base 2 for insertion into the middle hole of the rotor body 8. The upper edge of the guide post 5 is chamfered. For easy insertion, a positioning block 3 is provided on the opposite side of the top of the positioning base 2 to limit the side of the balance block at one end of the rotor body 8. Locking fixing posts 6 are embedded in the four corners of the locking base plate 1. An anti-misalignment block 7 is provided on the upper end of the locking fixing post 6. One end of the anti-misalignment block 7 corresponds to the balance block at one end of the rotor body 8, and the other end corresponds to the end of the rotor body 8. The anti-misalignment block 7 is provided with a through hole 10 corresponding to the locking fixing post 6. The anti-misalignment block 7 is movably sleeved on the upper end of the locking fixing post 6 through the through hole 10, and the diameter of the upper and lower ends of the locking fixing post 6 is smaller than the diameter of the middle part.
[0018] In addition, to increase stability during use and reduce the possibility of loosening, this application also includes a reinforcing component. The reinforcing component includes a longitudinal groove 13 disposed at the bottom of the locking base plate 1. The upper end of the longitudinal groove 13 is connected to a transverse groove 12. A lead screw 18 is rotatably disposed on the inner side of the transverse groove 12. Specifically, bearings 19 are embedded at both ends of the transverse groove 12. Both ends of the lead screw 18 are fixed to the inner wall of the bearings 19. One end of the lead screw 18 extends to the outer side of the locking base plate 1 and is provided with a knob 9. A threaded engagement is provided on the lead screw 18. The inner wall of the moving block 20 and the transverse groove 12 is provided with a guide rail 17. One end of the moving block 20 is movably guided and cooperated with the guide rail 17 to increase stability. The bottom of the moving block 20 is movably provided with a traction rod 21. The upper inner side of the longitudinal groove 13 is vertically movably connected with a lifting block 15. The lower inner side of the longitudinal groove 13 is vertically movably connected with a stop block 14. An elastic element 16 is provided between the stop block 14 and the lifting block 15. The elastic element 16 is preferably a spring. The lower end of the traction rod 21 is movably connected with the lifting block 15.
[0019] It should be noted that this utility model is an auxiliary tooling for riveting and pressing motor rotors. In use, the locking base plate 1 is bolted onto the riveting equipment workbench. Then, turning the knob 9 rotates the lead screw 18, which in turn moves the moving block 20. The traction rod 21 moves the lifting block 15 downwards, pressing down on the elastic element 16. The elastic element 16 generates a reverse force acting on the abutment block 14, which abuts against the riveting equipment workbench, thus increasing the stability of the locking base plate 1. Afterwards... The anti-misalignment block 7 is fixed on the upper end of the locking and fixing post 6. The rotor body 8 is inserted downward from the middle of the anti-misalignment block 7, so that the balance block at the upper end of the rotor body 8 corresponds to the higher end of the anti-misalignment block 7. At this time, the balance block at the bottom of the rotor body 8 corresponds to the first positioning post 4. The guide post 5 is inserted into the middle hole of the rotor body 8. Finally, the second positioning post 11 supports the bottom end of the rotor body 8 away from the balance block, and the positioning block 3 can limit the two sides of the balance block to prevent the rotor body 8 from rotating. Finally, the riveting operation can be carried out.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An auxiliary tooling for riveting and pressing motor rotors, comprising a rotor body (8) and a locking base plate (1) bolted to the worktable of a riveting equipment, characterized in that: The upper end of the locking base plate (1) is equipped with a positioning base (2). A first positioning post (4) is provided on one side of the upper end of the positioning base (2) for supporting the balance block at one end of the rotor body (8). A second positioning post (11) is provided on the other side of the upper end of the positioning base (2) for supporting the bottom end of the rotor body (8). A guide post (5) is provided in the middle of the upper end of the positioning base (2) for inserting into the middle hole of the rotor body (8). A positioning block (3) is provided on the opposite side of the top of the positioning base (2) for limiting the side of the balance block at one end of the rotor body (8). Locking fixing posts (6) are embedded in the four corners of the locking base plate (1). An anti-misalignment block (7) is provided on the upper end of the locking fixing post (6). One end of the anti-misalignment block (7) corresponds to the balance block at one end of the rotor body (8), and the other end corresponds to the end of the rotor body (8).
2. The auxiliary tooling for riveting and pressing a motor rotor according to claim 1, characterized in that: The anti-mistake block (7) is provided with a through hole (10) corresponding to the locking and fixing post (6). The anti-mistake block (7) is movably sleeved on the upper end of the locking and fixing post (6) through the through hole (10), and the diameters of the upper and lower ends of the locking and fixing post (6) are smaller than the diameter of the middle part.
3. The auxiliary tooling for riveting and pressing a motor rotor according to claim 1, characterized in that: The upper edge of the guide post (5) is chamfered.
4. The auxiliary tooling for riveting and pressing motor rotors according to claim 1, characterized in that: It also includes a reinforcement component, which includes a longitudinal groove (13) disposed at the bottom of the locking base plate (1), a transverse groove (12) connected to the upper end of the longitudinal groove (13), a lead screw (18) rotatably disposed on the inner side of the transverse groove (12), one end of the lead screw (18) extending to the outer side of the locking base plate (1) and a knob (9) disposed thereon, a moving block (20) threaded on the lead screw (18), a traction rod (21) movably disposed at the bottom of the moving block (20), a lifting block (15) vertically movably connected to the upper inner side of the longitudinal groove (13), a stop block (14) vertically movably connected to the lower inner side of the longitudinal groove (13), an elastic element (16) disposed between the stop block (14) and the lifting block (15), and the lower end of the traction rod (21) movably connected to the lifting block (15).
5. The auxiliary tooling for riveting and pressing a motor rotor according to claim 4, characterized in that: The two ends of the transverse groove (12) are fitted with bearings (19), and the two ends of the lead screw (18) are fixed to the inner wall of the bearings (19).
6. The auxiliary tooling for riveting and pressing a motor rotor according to claim 4, characterized in that: The elastic element (16) is a spring.
7. The auxiliary tooling for riveting and pressing a motor rotor according to claim 4, characterized in that: The inner wall of the transverse groove (12) is provided with a guide rail (17), and one end of the moving block (20) is in movable guiding cooperation with the guide rail (17).