Automatic bending DC brush holder manufacturing device

Abstract

The utility model relates to automatic bending DC direct current micromotor brush holder manufacturing technical field, concretely is automatic bending DC direct current micromotor brush holder manufacturing device, including support platform, rotary material handling structure includes the bending knife of fixed mounting on the bending device, the utility model discloses the setting of rotary material handling structure has changed the traditional manual after the brush holder of making is completed is taken to bending device and is bent, therefore no longer makes personnel only rely on visual and tactile positioning, prevents the situation that the bending point deviates from the design position due to the positional deviation, thereby will not cause angle deviation and size out of tolerance, the advantage of this structure is not only can avoid manual contact brush holder, the sweat, grease of finger pollute material surface and lead to the subsequent welding and appear virtual welding, oxidation, influence conductivity, also can avoid the situation that the edge of brush holder is deformed, surface scratch due to the collision, friction in the process of manual taking and placing, thereby can make the damage rate of product greatly reduce.

Description

Technical Field

[0001] This utility model relates to an automatic bending DC micro motor brush holder manufacturing device, and in particular to an automatic bending DC micro motor brush holder manufacturing device, belonging to the technical field of automatic bending DC micro motor brush holder manufacturing. Background Technology

[0002] DC micro motors (such as micro motors with a diameter of 5-30mm) are widely used in consumer electronics (smartwatches, drones), automotive electronics (window adjustment motors), medical devices (insulin pumps), and other fields. Their core function is to achieve current commutation through the sliding contact between the brush and the commutator. The brush holder is a key component for fixing the brush (usually made of copper alloy sheet by stamping, with a thickness of 0.1-0.5mm). Its structural precision directly determines the commutation stability, lifespan, and reliability of the motor. The brush holder needs to be bent to form a specific angle (such as bending the brush mounting arm at 90° and the positioning foot at 45°) to ensure stable contact pressure between the brush and the commutator.

[0003] Traditional DC micromotor brush holder manufacturing equipment has a simple structure. After the brush holder is manufactured, it needs to be bent before it can be used on the DC micromotor. Usually, the manufactured brush holder is manually placed onto the bending machine. However, micromotor brush holders are precision parts, and the bending angle tolerance needs to be controlled within ±0.5°, and the bending edge length tolerance needs to be ≤±0.2mm. When placing them manually, positioning is based solely on vision and feel, which can easily lead to positioning deviations. This causes the bending point to deviate from the design position, directly resulting in angle deviations and dimensional out-of-tolerance. Moreover, when people handle the brush holder, the sweat and oil from their fingers can contaminate the material surface, leading to poor welding and oxidation during subsequent welding, affecting conductivity. In addition, the manual handling process may cause the brush holder edge to deform and the surface to scratch due to collisions and friction, further reducing the product yield.

[0004] Therefore, there is an urgent need to improve the automatic bending DC micro motor brush holder manufacturing device to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic bending DC micro-motor brush holder manufacturing device. By setting up a rotating material feeding structure, it changes the traditional method of manually placing the finished brush holder onto the bending device for bending. Therefore, it eliminates the need for personnel to rely solely on visual and tactile positioning, preventing positioning deviations that could cause the bending point to deviate from the design position. This avoids angular deviations and dimensional out-of-tolerance issues. The advantages of this structure are that it not only prevents the contamination of the material surface by sweat and grease from manual handling of the brush holder, which could lead to incomplete welding, oxidation, and reduced conductivity during subsequent welding, but it also avoids edge deformation and surface scratches caused by collisions and friction during manual handling, thus significantly reducing the product damage rate.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include: An automatic bending DC micro-motor brush holder manufacturing device includes a support platform. A bending device and a material conveying assembly are respectively installed at the bottom of the support platform. The material conveying assembly is equipped with a rotating material conveying structure, which includes a bending blade fixedly installed on the bending device. A bending die connected to the support platform is fixedly installed below the bending blade. A support plate is installed on one side of the bending device. A rotating rod is movably installed on the top of the support plate. A first gear is fixedly installed on the rotating rod. An electric cylinder is fixedly installed on the top of the rotating rod. A connecting plate is fixedly installed at the output end of the electric cylinder. A first electric telescopic rod is fixedly installed at the bottom of the connecting plate. A brush holder suction cup is fixedly installed at the output end of the first electric telescopic rod. A fixing plate is fixedly installed on the top of the support plate. A second electric telescopic rod is fixedly installed on one side of the fixing plate. A toothed plate meshing with the first gear is installed at the output end of the second electric telescopic rod.

[0007] Preferably, a fixing block is fixedly installed on the second electric telescopic rod, and a fixing sleeve connected to the fixing block is fixedly installed at one end of the toothed plate. 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.

[0008] Preferably, a third electric telescopic rod is fixedly installed on the support plate, a locking tooth is fixedly installed at the output end of the third electric telescopic rod, and a toothed ring that meshes with the locking tooth is fixedly installed at the other end of the insertion rod.

[0009] Preferably, a support rod connected to the toothed plate is fixedly installed on the support plate, and a sliding groove is provided on the support rod, and a sliding rod connected to the toothed plate is movably installed inside the sliding groove.

[0010] Preferably, a bearing plate connected to the support plate is fixedly installed on the top of the support platform. A slot is opened on the bearing plate. A transmission block is fixedly installed on the bottom of the support plate. A lead screw connected to the transmission block is movably installed on the bearing plate. A second gear is fixedly installed at one end of the lead screw. A drive motor is fixedly installed at one end of the bearing plate. A third gear meshing with the second gear is fixedly installed at the output end of the drive motor.

[0011] Preferably, a protective shell connected to the support plate is installed on the outside of the drive motor, and the protective shell has multiple heat dissipation holes.

[0012] Preferably, a first magnetic ring is fixedly installed on the inner side of the protective shell, and a second magnetic ring that is magnetically connected to the first magnetic ring is fixedly installed on the support plate.

[0013] This utility model has at least the following beneficial effects: By using a rotating material handling structure, the traditional method of manually bending the finished brush holder onto the bending device is eliminated. This eliminates the need for personnel to rely solely on visual and tactile positioning, preventing misalignment that could cause the bending point to deviate from the design position. Consequently, angular deviations and dimensional errors are avoided. This structure not only prevents sweat and grease from contaminating the material surface during manual handling, thus avoiding issues like incomplete welding, oxidation, and reduced conductivity, but also prevents edge deformation and surface scratches caused by collisions and friction during manual handling. This significantly reduces the product damage rate. Attached Figure Description

[0014] 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: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the protective shell structure of this utility model; Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle; Figure 4 For the present utility model Figure 2 Enlarged view at point B in the middle; Figure 5 For the present utility model Figure 2 Enlarged view of point C in the middle.

[0015] In the diagram, 1. Support platform; 2. Bending device; 3. Material conveying assembly; 4. Rotating material conveying structure; 5. Bending knife; 6. Bending mold; 7. Support plate; 8. Rotating rod; 9. First gear; 10. Electric cylinder; 11. Connecting plate; 12. First electric telescopic rod; 13. Brush holder suction cup; 14. Fixing plate; 15. Second electric telescopic rod; 16. Tooth plate; 17. Fixing block; 18. Fixing sleeve; 19. Connecting hole; 20. Insert rod; 21. Clamp; 22. Third electric telescopic rod; 23. Clamping tooth; 24. Tooth ring; 25. Support rod; 26. Slide groove; 27. Slide rod; 28. Bearing plate; 29. ​​Groove; 30. Transmission block; 31. Lead screw; 32. Second gear; 33. Drive motor; 34. Third gear; 35. Protective shell; 36. Heat dissipation hole; 37. First magnetic ring; 38. Second magnetic ring. Detailed Implementation

[0016] 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.

[0017] like Figures 1-5 As shown in this embodiment, the automatic bending DC micro motor brush holder manufacturing device is provided.

[0018] An automatic bending DC micro-motor brush holder manufacturing device includes a support platform 1. A bending device 2 and a material conveying assembly 3 are mounted on the bottom of the support platform 1. The material conveying assembly 3 is equipped with a rotating material conveying structure 4, which includes a bending blade 5 fixedly mounted on the bending device 2. A bending die 6 connected to the support platform 1 is fixedly mounted below the bending blade 5. A support plate 7 is mounted on one side of the bending device 2. A rotating rod 8 is movably mounted on the top of the support plate 7. A first gear 9 is fixedly mounted on the rotating rod 8. An electric cylinder 10 is fixedly mounted on the top of the rotating rod 8. A connecting plate 11 is fixedly mounted on the output end of the electric cylinder 10. A first electric telescopic rod 12 is fixedly mounted on the bottom of the connecting plate 11. A brush holder suction cup 13 is fixedly mounted on the output end of the first electric telescopic rod 12. A fixing plate 14 is fixedly mounted on the top of the support plate 7. A second electric telescopic rod 15 is fixedly mounted on one side of the fixing plate 14. A toothed plate 16 meshing with the first gear 9 is mounted on the output end of the second electric telescopic rod 15. By using the rotating material conveying structure 4, the traditional method of manually placing the finished brush holder onto the bending device 2 for bending is eliminated. This eliminates the need for manual positioning based solely on sight and touch, preventing positioning deviations that could cause the bending point to deviate from the design position, thus avoiding angular deviations and dimensional errors. When the brush holder needs to be placed on the bending mold 6 for bending, the second electric telescopic rod 15 is first activated to extend and move the toothed plate 16. Due to the connection between the toothed plate 16 and the first gear 9, the toothed plate 16 can drive the first gear 9 to rotate during its movement. The rotation of the first gear 9, in turn, drives the rotating rod 8 and the electric cylinder 10 to rotate, thereby adjusting the brush holder suction cup 13 at the bottom of the electric cylinder 10 onto the finished brush holder. Then, the first electric telescopic rod 12 is activated to extend and lower the brush holder suction cup 13 onto the brush holder and adsorb it. After the brush holder is adsorbed, the above operation is reversed so that the brush holder adsorbed by the brush holder suction cup 13 reaches above the bending mold 6. After the brush holder is placed in the designed position, the position of the connecting plate 11 is adjusted to move away from below the bending blade 5. At this time, the bending blade 5 can start to bend the brush holder. The advantage of this structure is that it can not only avoid the contamination of the material surface by the sweat and oil of the fingers when the brush holder is manually touched, which would lead to poor welding and oxidation during subsequent welding and affect conductivity, but also avoid the deformation of the brush holder edge and surface scratches caused by collision and friction during manual handling, thereby greatly reducing the product damage rate.

[0019] like Figures 1-5 As shown, a fixing block 17 is fixedly installed on the second electric telescopic rod 15, and a fixing sleeve 18 connected to the fixing block 17 is fixedly installed on one end of the toothed plate 16. Both the fixing block 17 and the fixing sleeve 18 are provided with connecting holes 19. An insert rod 20 is movably installed inside the connecting hole 19. A latch 21 is fixedly installed on one end of the insert rod 20. A third electric telescopic rod 22 is fixedly installed on the support plate 7. A locking tooth 23 is fixedly installed on the output end of the third electric telescopic rod 22, and a toothed ring 24 that meshes with the locking tooth 23 is fixedly installed on the other end of the insert rod 20.

[0020] With the arrangement of fixing block 17, fixing sleeve 18, connecting hole 19, insert rod 20, and latch 21, fixing block 17 is inserted into the fixing sleeve 18, and then insert rod 20 is inserted into the connecting hole 19 to connect the two together. Then, the insert rod 20 is rotated so that the angle of latch 21 is perpendicular to the angle of the connecting hole 19, thus fixing fixing block 17 inside the fixing sleeve 18 to prevent it from falling off. Reverse rotation of insert rod 20 so that the angle of latch 21 is aligned with the angle of the connecting hole 19 allows the insert rod 20 to be pulled out from the connecting hole 19. To facilitate disassembly and replacement of the toothed plate 16 when it is damaged, the third electric telescopic rod 22, the locking tooth 23, and the toothed ring 24 are configured so that when the insertion rod 20 is inserted into the connection hole 19, the third electric telescopic rod 22 is activated to extend and drive the locking tooth 23 to rise. When the locking tooth 23 rises to the position of the toothed ring 24 and engages with it, the insertion rod 20 can be limited and fixed, thereby improving the stability of the insertion rod 20 inside the connection hole 19. When the third electric telescopic rod 22 retracts, the locking tooth 23 can be disengaged from the toothed ring 24, at which point the insertion rod 20 can be rotated normally.

[0021] like Figures 1-5 As shown, a support rod 25 connected to the toothed plate 16 is fixedly installed on the support plate 7. A groove 26 is provided on the support rod 25, and a slide rod 27 connected to the toothed plate 16 is movably installed inside the groove 26. With the support rod 25, the groove 26 and the slide rod 27, the support rod 25 can support the toothed plate 16 during its movement, thus preventing the meshing process between the toothed plate 16 and the first gear 9 from being affected. The slide rod 27 sliding inside the groove 26 can reduce the friction between the toothed plate 16 and the support rod 25, which not only reduces the power consumption of the second electric telescopic rod 15, but also reduces the wear between the toothed plate 16 and the support rod 25.

[0022] like Figures 1-5 As shown, a support plate 28 connected to a support plate 7 is fixedly installed on the top of the support platform 1. A slot 29 is provided on the support plate 28. A transmission block 30 is fixedly installed on the bottom of the support plate 7. A lead screw 31 connected to the transmission block 30 is movably installed on the support plate 28. A second gear 32 is fixedly installed at one end of the lead screw 31. A drive motor 33 is fixedly installed at one end of the support plate 28. A third gear 34 meshing with the second gear 32 is fixedly installed at the output end of the drive motor 33. With the arrangement of the support plate 28, slot 29, transmission block 30, lead screw 31, second gear 32, drive motor 33 and third gear 34, starting the drive motor 33 can drive the third gear 34 to start rotating. Due to the connection between the second gear 32 and the third gear 34, the second gear 32 also rotates when the third gear 34 rotates. At this time, the lead screw 31 also starts to rotate under the drive of the second gear 32. When the lead screw 31 rotates, the transmission block 30 can move on the lead screw 31. When the transmission block 30 moves, it can drive the support plate 7 and the structure installed on the support plate 7 to start moving. The advantage of the brush holder suction cup 13 being movable and adjustable is that it can neatly place the brush holders it adsorbs on the bending die 6. Multiple brush holders can be placed on the bending die 6, so that multiple brush holders can be bent at the same time, thus improving the bending efficiency of the brush holders.

[0023] like Figures 1-5 As shown, a protective shell 35 connected to the support plate 28 is installed on the outside of the drive motor 33. The protective shell 35 has multiple heat dissipation holes 36. A first magnetic ring 37 is fixedly installed on the inside of the protective shell 35. A second magnetic ring 38 magnetically connected to the first magnetic ring 37 is fixedly installed on the support plate 28. The protective shell 35 and the heat dissipation holes 36 provide protection and isolation for the drive motor 33 and gear transmission components. This not only prevents the drive motor 33 from being accidentally touched and damaged, but also prevents personnel from touching the gear transmission components and getting injured. The multiple heat dissipation holes 36 on the protective shell 35 dissipate the heat generated by the drive motor 33, thus preventing the internal temperature of the protective shell 35 from becoming too high and causing the drive motor 33 to malfunction. The first magnetic ring 37 and the second magnetic ring 38 attract each other and fix the protective shell 35 to the support plate 28 to prevent it from falling off. Due to the characteristics of the first magnetic ring 37 and the second magnetic ring 38, the protective shell 35 can be disassembled without tools, making it convenient for personnel to disassemble and replace the protective shell 35 when it is damaged.

[0024] In this embodiment, as Figures 1-5 As shown, the working process of the automatic bending DC micro motor brush holder manufacturing device provided in this embodiment is as follows: When the brush holder needs to be placed on the bending die 6 for bending, firstly, the second electric telescopic rod 15 is activated to extend and drive the toothed plate 16 to move. Due to the connection between the toothed plate 16 and the first gear 9, the toothed plate 16 can drive the first gear 9 to rotate during the movement. When the first gear 9 rotates, it can drive the rotating rod 8 and the electric cylinder 10 to rotate, thereby adjusting the brush holder suction cup 13 at the bottom of the electric cylinder 10 to be above the finished brush holder. Then, the first electric telescopic rod 12 is activated to extend and drive the brush holder suction cup 13 to descend onto the brush holder and adsorb it. After the brush holder is adsorbed, the above operation is reversed so that the brush holder adsorbed by the brush holder suction cup 13 reaches above the bending die 6. After the brush holder is placed in the designed position, the position of the connecting plate 11 is adjusted to move away from below the bending blade 5. At this time, the bending blade 5 can start to bend the brush holder.

[0025] 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 bending DC micro motor brush holder manufacturing device, comprising a support platform (1), wherein a bending device (2) and a material conveying assembly (3) are respectively installed on the bottom of the support platform (1), characterized in that: The material conveying assembly (3) is provided with a rotating material conveying structure (4), which includes a bending blade (5) fixedly installed on the bending device (2). A bending die (6) connected to the support platform (1) is fixedly installed below the bending blade (5). A support plate (7) is installed on one side of the bending device (2). A rotating rod (8) is movably installed on the top of the support plate (7). A first gear (9) is fixedly installed on the rotating rod (8). An electric cylinder (10) is fixedly installed on the top of the rotating rod (8). The output end of the electric cylinder (10) is fixedly installed with a connecting plate (11), the bottom of the connecting plate (11) is fixedly installed with a first electric telescopic rod (12), the output end of the first electric telescopic rod (12) is fixedly installed with a brush holder suction cup (13), the top of the support plate (7) is fixedly installed with a fixing plate (14), the side of the fixing plate (14) is fixedly installed with a second electric telescopic rod (15), and the output end of the second electric telescopic rod (15) is installed with a toothed plate (16) that meshes with the first gear (9).

2. The automatic bending DC micro motor brush holder manufacturing device according to claim 1, characterized in that: A fixing block (17) is fixedly installed on the second electric telescopic rod (15). A fixing sleeve (18) connected to the fixing block (17) is fixedly installed on one end of the toothed plate (16). Both the fixing block (17) and the fixing sleeve (18) are provided with connecting holes (19). A plug rod (20) is movably installed inside the connecting hole (19). A latch (21) is fixedly installed on one end of the plug rod (20).

3. The automatic bending DC micro motor brush holder manufacturing device according to claim 2, characterized in that: A third electric telescopic rod (22) is fixedly installed on the support plate (7). A locking tooth (23) is fixedly installed at the output end of the third electric telescopic rod (22). A toothed ring (24) that meshes with the locking tooth (23) is fixedly installed at the other end of the insertion rod (20).

4. The automatic bending DC micro motor brush holder manufacturing device according to claim 1, characterized in that: A support rod (25) connected to the toothed plate (16) is fixedly installed on the support plate (7). A groove (26) is provided on the support rod (25). A slide rod (27) connected to the toothed plate (16) is movably installed inside the groove (26).

5. The automatic bending DC micro motor brush holder manufacturing device according to claim 1, characterized in that: The top of the support platform (1) is fixedly installed with a bearing plate (28) connected to the support plate (7). The bearing plate (28) has a slot (29). The bottom of the support plate (7) is fixedly installed with a transmission block (30). The bearing plate (28) is movably installed with a lead screw (31) connected to the transmission block (30). One end of the lead screw (31) is fixedly installed with a second gear (32). One end of the bearing plate (28) is fixedly installed with a drive motor (33). The output end of the drive motor (33) is fixedly installed with a third gear (34) that meshes with the second gear (32).

6. The automatic bending DC micro motor brush holder manufacturing device according to claim 5, characterized in that: The drive motor (33) is equipped with a protective shell (35) connected to the support plate (28) on its outer side, and the protective shell (35) has a plurality of heat dissipation holes (36).

7. The automatic bending DC micro motor brush holder manufacturing device according to claim 6, characterized in that: A first magnetic ring (37) is fixedly installed on the inner side of the protective shell (35), and a second magnetic ring (38) is fixedly installed on the bearing plate (28) and magnetically connected to the first magnetic ring (37).

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