Automatic riveting motor brush holder production equipment

Abstract

This utility model relates to the field of riveting motor brush holder production technology, specifically to automatic riveting motor brush holder production equipment. It includes a riveting table and a motor brush holder body. Multiple riveting molds that cooperate with riveting joints are set on the support plate. A first gear is fixedly installed on the rotating rod. A drive motor is fixedly installed at the bottom of the riveting table. A second gear meshing with the first gear is fixedly installed at the output end of the drive motor. This utility model, through the setting of a pressure-increasing riveting structure, changes the traditional riveting method that relies on mechanical transmission or manual control to rivet the motor brush holder body. This ensures the stability of the riveting force and pressing depth, thus avoiding situations where rivet misalignment or brush positioning deviation leads to unstable contact resistance of the motor brush holder body, affecting motor operating efficiency. The advantage of this structure is that the force adjustment range can be greatly increased, preventing cracking of the riveting mold when riveting brittle materials.

Description

Technical Field

[0001] This utility model relates to automatic riveting motor brush holder production equipment, and in particular to automatic riveting motor brush holder production equipment, belonging to the field of riveting motor brush holder production technology. Background Technology

[0002] Motor brush holders are key components for converting electrical energy into mechanical energy in motors. Their main function is to provide continuous current to the rotating rotor windings through the sliding contact between the brushes and the commutator. They are widely used in automotive motors, industrial drive motors, and household appliance motors. The structural precision, assembly strength, and stability of the brush holder directly affect the operating efficiency, service life, and safety of the motor, thus imposing stringent requirements on its manufacturing process.

[0003] Traditional riveting relies heavily on mechanical transmission or manual control, resulting in poor stability of riveting force and insertion depth. This can easily lead to rivet misalignment and brush positioning deviation (often exceeding ±0.1mm), causing unstable contact resistance of the brush holder and affecting motor operating efficiency. Furthermore, the force adjustment range of traditional riveting is limited (usually ≤1000N), which can easily result in weak riveting for high-strength materials (such as copper alloys and high-strength resins) and cracking of the base for brittle materials.

[0004] Therefore, it is urgent to improve the automatic riveting motor brush holder production equipment to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic riveting production equipment for motor brush holders. By setting up a pressure-boosting riveting structure, it changes the traditional riveting method that relies on mechanical transmission or manual control to rivet the main body of the motor brush holder. This ensures the stability of the riveting force and pressing depth, thus avoiding situations where the contact resistance of the motor brush holder main body is unstable due to rivet misalignment or brush positioning deviation, which affects the motor's operating efficiency. The advantage of this structure is that it can greatly increase the force adjustment range and avoid cracking of the riveting mold when riveting brittle materials.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An automatic riveting motor brush holder production equipment includes a riveting table and a motor brush holder body. The riveting table is equipped with a pressure-boosting riveting structure, which includes a fixed frame fixedly installed on the top of the riveting table. A support plate is fixedly installed on the top of the fixed frame, and a first electric cylinder is fixedly installed on the support plate. A connecting plate is fixedly installed at the output end of the first electric cylinder, and multiple riveting joints are fixedly installed at the bottom of the connecting plate. A rotating rod is movably installed on the riveting table, and a bearing plate is fixedly installed on the top of the rotating rod. Multiple riveting molds that cooperate with the riveting joints are provided on the bearing plate. A first gear is fixedly installed on the rotating rod, and a drive motor is fixedly installed at the bottom of the riveting table. A second gear that meshes with the first gear is fixedly installed at the output end of the drive motor.

[0008] Preferably, multiple sleeves are fixedly installed on the riveting platform, and multiple guide rods connected to the sleeves are fixedly installed on the bottom of the connecting plate, with shock absorbers provided inside the guide rods.

[0009] Preferably, a protective shell connected to the riveting table is fixedly installed on the outside of the drive motor. The protective shell has multiple heat dissipation holes, and an inspection cover is provided at one end of the protective shell.

[0010] Preferably, a first magnetic ring is fixedly installed on the inner side of the inspection cover, and a second magnetic ring that is magnetically connected to the first magnetic ring is fixedly installed on the protective shell.

[0011] Preferably, a second electric cylinder is fixedly installed on the riveting table, a plurality of limiting plates are fixedly installed on one end of the second electric cylinder, and a support block connected to the limiting plate is fixedly installed on the output end of the second electric cylinder.

[0012] Preferably, a fixing block is fixedly installed on the second electric cylinder, and a fixing sleeve connected to the fixing block is fixedly installed on one side of the support block. Both the fixing block and the fixing sleeve have connecting holes, and a plug is movably installed inside the connecting hole. A latch is fixedly installed at one end of the plug.

[0013] Preferably, a fixing plate is fixedly installed at one end of the support block, an electric telescopic rod is fixedly installed on one side of the fixing plate, a locking tooth is fixedly installed at the output end of the electric telescopic rod, and a toothed ring that meshes with the locking tooth is fixedly installed at the other end of the insertion rod.

[0014] This utility model has at least the following beneficial effects:

[0015] By setting up a pressure-boosting riveting structure, the traditional riveting method that relies on mechanical transmission or manual control to rivet the motor brush holder body is changed. This ensures the stability of riveting force and pressing depth, thus avoiding situations where rivet misalignment or brush positioning deviation leads to unstable contact resistance of the motor brush holder body, affecting motor operating efficiency. The advantage of this structure is that the force adjustment range can be greatly increased, avoiding cracking of the riveting mold when riveting brittle materials. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the guide rod structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the riveting mold structure of this utility model;

[0020] Figure 4 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 5 For the present utility model Figure 2 Enlarged view at point B in the middle;

[0022] Figure 6 For the present utility model Figure 3 Enlarged view of point C in the middle.

[0023] In the diagram, 1. Riveting table; 2. Motor brush holder body; 3. Pressure-boosting riveting structure; 4. Fixing frame; 5. Support plate; 6. First electric cylinder; 7. Connecting plate; 8. Riveting joint; 9. Rotating rod; 10. Bearing plate; 11. Riveting mold; 12. First gear; 13. Drive motor; 14. Second gear; 15. Sleeve; 16. Guide rod; 17. Shock absorber; 18. Protective shell; 19. Heat dissipation hole; 20. Inspection cover plate; 21. First magnetic ring; 22. Second magnetic ring; 23. Second electric cylinder; 24. Limiting plate; 25. Support block; 26. Fixing block; 27. Fixing sleeve; 28. Connecting hole; 29. ​​Insert rod; 30. Bolt; 31. Fixing plate; 32. Electric telescopic rod; 33. Clamping tooth; 34. Gear ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-6 As shown in this embodiment, this is an example of an automatic riveting motor brush holder production equipment.

[0026] An automatic riveting motor brush holder production equipment includes a riveting table 1 and a motor brush holder body 2. The riveting table 1 is equipped with a pressure-boosting riveting structure 3, which includes a fixed frame 4 fixedly installed on the top of the riveting table 1. A support plate 5 is fixedly installed on the top of the fixed frame 4. A first electric cylinder 6 is fixedly installed on the support plate 5. A connecting plate 7 is fixedly installed at the output end of the first electric cylinder 6. Multiple riveting joints 8 are fixedly installed at the bottom of the connecting plate 7. A rotating rod 9 is movably installed on the riveting table 1. A bearing plate 10 is fixedly installed on the top of the rotating rod 9. Multiple riveting molds 11 that cooperate with the riveting joints 8 are provided on the bearing plate 10. A first gear 12 is fixedly installed on the rotating rod 9. A drive motor 13 is fixedly installed at the bottom of the riveting table 1. A second gear 14 that meshes with the first gear 12 is fixedly installed at the output end of the drive motor 13.

[0027] By using the pressure-boosting riveting structure 3, the traditional riveting method that relies on mechanical transmission or manual control to rivet the motor brush holder body 2 is changed. This ensures the stability of the riveting force and pressing depth, thus avoiding situations where rivet misalignment or brush positioning deviation leads to unstable contact resistance of the motor brush holder body 2, affecting motor operating efficiency. First, the motor brush holder body 2 is placed on the riveting mold 11. Then, the first electric cylinder 6 is activated to extend and drive the connecting plate 7 to begin descending. When the connecting plate 7 descends and its multiple rivet joints 8 cover the motor brush holder body 2, the rivet joints 8 continue to descend, applying pressure to the motor brush holder body 2 on the riveting mold 11. This ensures uniform rivet pressing depth, precise alignment of the motor brush holder body 2 and the riveting mold 11, and significantly reduces contact resistance fluctuations. Furthermore, the pressure-boosting riveting structure 3 can provide higher and adjustable pressure. This design can adapt to brush holder materials of different hardness. By controlling the pressure in segments, it avoids damage to brittle materials while ensuring the connection strength of high-strength materials. After the motor brush holder body 2 is pressurized and riveted, the drive motor 13 is started to drive the second gear 14 to rotate. Due to the connection relationship between the second gear 14 and the first gear 12, the first gear 12 can also rotate synchronously while the second gear 14 rotates. The rotating rod 9 at the bottom of the support plate 10 can adjust the angle of the support plate 10 under the drive of the first gear 12, so that the riveted motor brush holder body 2 can be rotated to the outside for the next step of operation. Then, the riveting mold 11 on the other end of the support plate 10 can be rotated to the bottom of the first electric cylinder 6 to continue the riveting operation. The advantage of this structure is that the range of force adjustment can be greatly increased, avoiding the cracking of the riveting mold 11 when riveting brittle materials.

[0028] like Figures 1-6 As shown, multiple sleeves 15 are fixedly installed on the riveting table 1, and multiple guide rods 16 connected to the sleeves 15 are fixedly installed on the bottom of the connecting plate 7. Shock absorbers 17 are installed inside the guide rods 16.

[0029] With the arrangement of sleeve 15, guide rod 16 and shock absorber 17, when the first electric cylinder 6 starts to pressurize and rivet the motor brush holder body 2 on the riveting mold 11, multiple guide rods 16 at the bottom of the connecting plate 7 will first be inserted into the sleeve 15. This serves to guide the riveting head 8 and the riveting mold 11 when they are closed, thus preventing the position of the riveting head 8 and the riveting mold 11 from shifting and causing damage to the motor brush holder body 2. At the same time, when the guide rod 16 is inserted into the sleeve 15, it can squeeze the shock absorber 17 inside the sleeve 15. The shock absorber 17 will contract during the squeezing process, thus buffering the pressure of the guide rod 16. This can prevent the impact force from being too large when the riveting head 8 and the riveting mold 11 are closed, thus preventing damage to both.

[0030] like Figures 1-6 As shown, a protective shell 18 connected to the riveting table 1 is fixedly installed on the outside of the drive motor 13. Multiple heat dissipation holes 19 are provided on the protective shell 18. A maintenance cover 20 is provided at one end of the protective shell 18. A first magnetic ring 21 is fixedly installed on the inner side of the maintenance cover 20. A second magnetic ring 22, magnetically connected to the first magnetic ring 21, is fixedly installed on the protective shell 18.

[0031] The protective shell 18, heat dissipation holes 19, and inspection cover 20 effectively protect the drive motor 13 from impact damage. The multiple heat dissipation holes 19 on the protective shell 18 dissipate heat generated by the drive motor 13, preventing overheating and potential malfunction. The inspection cover 20 allows for easy maintenance of the drive motor 13 without disassembling the protective shell 18, saving time. The first magnetic ring 21 and the second magnetic ring 22 attract each other, securing the inspection cover 20 to the protective shell 18 and preventing it from falling off. Due to the characteristics of the first and second magnetic rings, the inspection cover 20 can be opened by simply pulling it without tools, further saving time.

[0032] like Figures 1-6 As shown, a second electric cylinder 23 is fixedly installed on the riveting table 1. A plurality of limit plates 24 are fixedly installed on one end of the second electric cylinder 23, and a support block 25 connected to the limit plate 24 is fixedly installed on the output end of the second electric cylinder 23.

[0033] With the setting of the second electric cylinder 23, the limiting plate 24 and the support block 25, before the motor brush holder body 2 is pressurized and riveted, the second electric cylinder 23 is first started to extend and drive the support block 25 to start moving. When the support block 25 moves to the bottom of the support plate 10 and fits tightly against the support plate 10, it can support the support plate 10, thereby avoiding the situation where one end of the support plate 10 is bent and damaged during the pressurized riveting process of the motor brush holder body 2.

[0034] like Figures 1-6As shown, a fixing block 26 is fixedly installed on the second electric cylinder 23. A fixing sleeve 27 connected to the fixing block 26 is fixedly installed on one side of the support block 25. Both the fixing block 26 and the fixing sleeve 27 have connecting holes 28. A plug rod 29 is movably installed inside the connecting hole 28. A latch 30 is fixedly installed at one end of the plug rod 29. A fixing plate 31 is fixedly installed at one end of the support block 25. An electric telescopic rod 32 is fixedly installed on one side of the fixing plate 31. A locking tooth 33 is fixedly installed at the output end of the electric telescopic rod 32. A toothed ring 34 that meshes with the locking tooth 33 is fixedly installed at the other end of the plug rod 29.

[0035] With the arrangement of fixing block 26, fixing sleeve 27, connecting hole 28, insert rod 29, and latch 30, the connecting hole 28 is inserted into the fixing sleeve 27, and then the insert rod 29 is inserted into the connecting hole 28 to connect the two together. Then, the insert rod 29 is rotated so that the angle of the latch 30 is perpendicular to the angle of the connecting hole 28, thus fixing the fixing block 26 inside the fixing sleeve 27 to prevent it from falling off. Reverse rotation of the insert rod 29 so that the angle of the latch 30 is aligned with the angle of the connecting hole 28 allows the insert rod 29 to be pulled out from the connecting hole 28. This facilitates disassembly and replacement of the support block 25 when it is damaged. The fixing plate 31, electric telescopic rod 32, and latch 30 are also included. The teeth 33 and toothed ring 34 are configured so that when the insertion rod 29 is inserted into the connection hole 28, the electric telescopic rod 32 is activated to extend and drive the locking teeth 33 to move. When the locking teeth 33 move to the position of the toothed ring 34 and engage with it, the insertion rod 29 can be limited and fixed, thereby preventing the insertion rod 29 from being vibrated or accidentally hit and causing it to rotate and disengage from the connection hole 28. Therefore, the stability of the insertion rod 29 inside the connection hole 28 can be greatly improved. When the electric telescopic rod 32 retracts, the locking teeth 33 can disengage from the toothed ring 34, at which point the insertion rod 29 can be rotated normally.

[0036] In this embodiment, as Figures 1-6 As shown, the working process of the automatic riveting motor brush holder production equipment provided in this embodiment is as follows:

[0037] First, the motor brush holder body 2 is placed on the riveting mold 11. Then, the first electric cylinder 6 is activated to extend and lower the connecting plate 7. As the connecting plate 7 descends, its multiple rivet joints 8 cover the motor brush holder body 2. The rivet joints 8 are then lowered further, applying pressure to the motor brush holder body 2 on the riveting mold 11. This ensures uniform rivet insertion depth, precise alignment between the motor brush holder body 2 and the riveting mold 11, and significantly reduces contact resistance fluctuations. Furthermore, the pressure-increasing riveting structure 3 provides higher and adjustable pressure, adaptable to brush holder materials of different hardness. Segmented pressure control prevents damage to brittle materials while ensuring... To ensure the connection strength of high-strength materials, after the motor brush holder body 2 is pressurized and riveted, the drive motor 13 is started to drive the second gear 14 to start rotating. Due to the connection relationship between the second gear 14 and the first gear 12, the first gear 12 can also rotate synchronously while the second gear 14 rotates. The rotating rod 9 at the bottom of the support plate 10 can adjust the angle of the support plate 10 under the drive of the first gear 12, so that the riveted motor brush holder body 2 can be rotated to the outside for the next step of operation. Then, the riveting mold 11 on the other end of the support plate 10 can be rotated to the bottom of the first electric cylinder 6 to continue the riveting operation.

[0038] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An automatic riveting motor brush holder production equipment, comprising a riveting table (1) and a motor brush holder body (2), characterized in that: The riveting table (1) is provided with a pressure-boosting riveting structure (3). The pressure-boosting riveting structure (3) includes a fixed frame (4) fixedly installed on the top of the riveting table (1). A support plate (5) is fixedly installed on the top of the fixed frame (4). A first electric cylinder (6) is fixedly installed on the support plate (5). A connecting plate (7) is fixedly installed at the output end of the first electric cylinder (6). Multiple rivet joints (8) are fixedly installed at the bottom of the connecting plate (7). A rotating rod (9) is movably installed on the riveting table (1). A bearing plate (10) is fixedly installed on the top of the rotating rod (9). Multiple riveting molds (11) that cooperate with the rivet joints (8) are provided on the bearing plate (10). A first gear (12) is fixedly installed on the rotating rod (9). A drive motor (13) is fixedly installed at the bottom of the riveting table (1). A second gear (14) that meshes with the first gear (12) is fixedly installed at the output end of the drive motor (13).

2. The automatic riveting motor brush holder production equipment according to claim 1, characterized in that: Multiple sleeves (15) are fixedly installed on the riveting table (1), and multiple guide rods (16) connected to the sleeves (15) are fixedly installed on the bottom of the connecting plate (7). A shock absorber (17) is provided inside the guide rod (16).

3. The automatic riveting motor brush holder production equipment according to claim 1, characterized in that: The drive motor (13) is fixedly mounted with a protective shell (18) connected to the riveting table (1). The protective shell (18) has multiple heat dissipation holes (19) and a maintenance cover (20) is provided at one end of the protective shell (18).

4. The automatic riveting motor brush holder production equipment according to claim 3, characterized in that: A first magnetic ring (21) is fixedly installed on the inner side of the inspection cover (20), and a second magnetic ring (22) is fixedly installed on the protective shell (18) and magnetically connected to the first magnetic ring (21).

5. The automatic riveting motor brush holder production equipment according to claim 1, characterized in that: A second electric cylinder (23) is fixedly installed on the riveting table (1). A plurality of limit plates (24) are fixedly installed on one end of the second electric cylinder (23). A support block (25) connected to the limit plate (24) is fixedly installed on the output end of the second electric cylinder (23).

6. The automatic riveting motor brush holder production equipment according to claim 5, characterized in that: A fixing block (26) is fixedly installed on the second electric cylinder (23). A fixing sleeve (27) connected to the fixing block (26) is fixedly installed on one side of the support block (25). Both the fixing block (26) and the fixing sleeve (27) are provided with connecting holes (28). A plug rod (29) is movably installed inside the connecting hole (28). A latch (30) is fixedly installed at one end of the plug rod (29).

7. The automatic riveting motor brush holder production equipment according to claim 6, characterized in that: A fixing plate (31) is fixedly installed at one end of the support block (25), an electric telescopic rod (32) is fixedly installed on one side of the fixing plate (31), a locking tooth (33) is fixedly installed at the output end of the electric telescopic rod (32), and a toothed ring (34) that meshes with the locking tooth (33) is fixedly installed at the other end of the insertion rod (29).

Images