Automatic motor brush holder feeding and automatic carbon brush retraction and fixing device

Abstract

This utility model relates to the field of motor manufacturing technology and discloses an automatic brush holder feeding and automatic carbon brush retraction and fixing device. It includes a base plate, a support frame fixedly connected to the top of the base plate, an operating platform fixedly connected to the inner wall of the support frame, a turntable rotatably connected to the top of the operating platform, a storage bin fixedly connected to the top of the base plate, a brush holder mounting bracket fixedly connected to the top of the turntable, an ABS brush holder seat fixedly connected to the right side of the brush holder mounting bracket, and brush holder floating columns slidably connected to the front and rear inner walls of the ABS brush holder seat. This utility model effectively solves the problems of inaccurate carbon brush positioning and unstable brush holder fixing in the use of automatic brush holder feeding and automatic carbon brush retraction and fixing devices. It improves the carbon brush installation accuracy and equipment operation stability, significantly improving production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to an automatic motor brush holder feeding and carbon brush automatic retraction and fixing device. Background Technology

[0002] The motor brush holder is a crucial component of an electric motor, primarily used to fix and support the carbon brushes, providing them with a stable mounting position and movement guidance, while ensuring good contact between the carbon brushes and the motor's commutator or slip rings. The carbon brushes themselves are key components in the motor, enabling the conversion between electrical and mechanical energy. Through sliding contact with the commutator or slip rings, they introduce current from an external power source into the motor rotor or draw current generated by the rotor away, thus enabling the motor to operate normally. During motor operation, the brush holder and carbon brushes work closely together. The brush holder ensures the stable position and appropriate pressure of the carbon brushes, allowing them to continuously and reliably conduct current. Their coordinated work plays a decisive role in the motor's performance, efficiency, and lifespan.

[0003] The automatic motor brush holder feeding and automatic carbon brush retraction and fixing device uses an automatic feeding mechanism to transport the motor brush holder to the designated station in an orderly manner via a conveyor belt or vibratory feeder. The positioning device accurately calibrates the position of the brush holder. The automatic carbon brush retraction and fixing mechanism uses a cylinder or motor to drive a lever, which retracts the carbon brush at a preset angle after the brush holder is in place. At the same time, the limit component works with the clamping structure, and the sensor detects the position of the carbon brush and triggers the fixing action to ensure that the carbon brush is kept in the correct installation state in the brush holder. The entire process is coordinated by the PLC control system to realize the automated cycle of feeding, retraction, and fixing.

[0004] However, some existing automatic brush holder feeding and carbon brush retraction and fixing devices suffer from inaccurate carbon brush positioning and insecure brush holder fixing during use. Due to insufficient sensor accuracy or installation position deviation, the carbon brush cannot accurately sense its position during retraction, resulting in positioning deviation. Furthermore, traditional lever structures lack adaptive adjustment capabilities, making it difficult to cope with subtle differences in the size and shape of different carbon brush models, leading to inconsistent positioning results. Regarding brush holder fixing, some devices use clamping structures with limited material strength, which are prone to loosening and deformation after high-frequency vibration or long-term operation. In addition, unreasonable distribution of fixing points makes it difficult to form a balanced and stable constraint on the brush holder, causing displacement of the brush holder in subsequent processing stages. This not only affects the carbon brush installation accuracy but also easily leads to equipment malfunctions, severely restricting the improvement of production efficiency and product quality. Therefore, an automatic brush holder feeding and carbon brush retraction and fixing device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an automatic motor brush holder feeding and automatic carbon brush retraction and fixing device, which aims to improve the problems of inaccurate carbon brush positioning and unstable brush holder fixing in the use of existing automatic motor brush holder feeding and automatic carbon brush retraction and fixing devices.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic carbon brush retraction and fixing device, comprising a base plate, a support frame fixedly connected to the top of the base plate, an operating platform fixedly connected to the inner wall of the support frame, a turntable rotatably connected to the top of the operating platform, a storage bin fixedly connected to the top of the base plate, a brush holder mounting bracket fixedly connected to the top of the turntable, an ABS brush holder seat fixedly connected to the right side of the brush holder mounting bracket, brush holder floating columns slidably connected to the front and rear inner walls of the ABS brush holder seat, two springs fixedly connected to the bottom ends of the two brush holder floating columns, a cylinder fixedly connected to the left side of the brush holder mounting bracket, a top carbon brush column slidably connected to the inner wall of the brush holder mounting bracket, a spring sleeved on the outside of the top carbon brush column, a carbon brush clamp slidably connected to the inner wall of the ABS brush holder seat, a brush clamp frame fixedly connected to the right side of the ABS brush holder seat, and holes opened on the front and rear sides of the bottom end of the ABS brush holder seat.

[0007] As a further description of the above technical solution: the bottom end of the ABS brush holder is fixedly connected to the top end of the turntable, and the bottom end of the cylinder is fixedly connected to the top end of the turntable.

[0008] As a further description of the above technical solution: the two springs 2 are externally slidably connected to the inner wall of the bottom end of the ABS brush holder, and the spring 1 is externally slidably connected to the outside of the brush holder mounting bracket.

[0009] As a further description of the above technical solution: the right side of the top carbon brush post is fixedly connected to the left side of the brush holder, and the right side of the brush holder is fixedly connected to the left side of the carbon brush holder.

[0010] As a further description of the above technical solution: the automatic carbon brush return and fixing device further includes two fixing plates, a power shaft is rotatably connected to the top of the two fixing plates on their adjacent sides, a power gear is fixedly connected to the outside of the power shaft, a connecting shaft is rotatably connected to the bottom of the two fixing plates on their adjacent sides, a connecting gear is fixedly connected to the outside of the connecting shaft, a toothed belt is slidably connected to the two fixing plates on their adjacent sides, a plurality of connecting strips are fixedly connected to the outside of the toothed belt, a fixing plate is fixedly connected to the right side of each of the two fixing plates, a fixing block is fixedly connected to the top of each of the two fixing plates, and a rotating shaft is rotatably connected to the adjacent sides of the two fixing blocks.

[0011] As a further description of the above technical solution: a guide plate is fixedly connected to the outside of the rotating shaft, and a conveyor belt is fixedly connected to the right side of the two fixed plates.

[0012] As a further description of the above technical solution: the inner wall of the toothed belt is meshed with the outside of the power gear, and the inner wall of the toothed belt is meshed with the outside of the connecting gear.

[0013] As a further description of the above technical solution: the external sliding connection of the plurality of connecting strips is on the inner wall of the two adjacent sides of the two fixed plates, and the left side of the guide plate is externally slidingly connected to the inner wall of the two adjacent sides of the connecting strips.

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

[0015] 1. In this utility model, the top carbon brush column is driven to move to the left by the cylinder, pushing the carbon brush clamp to slide in the ABS brush holder. At the same time, the floating column of the brush holder achieves self-adaptive positioning of the brush holder through the elastic support of the second spring, thereby completing the automatic return and fixation of the carbon brush. Through the coordinated action of the second spring and the cylinder, the floating column of the brush holder is adaptively adjusted and cooperates with the top carbon brush column to accurately push the carbon brush clamp, thereby achieving the effect of high precision in carbon brush feeding and positioning and firm fixation.

[0016] 2. In this utility model, the toothed belt is driven to rotate by the power gear, and the toothed belt drives the material to rise through the connecting strip. When the material above the connecting strip is guided by the guide plate, the guide plate separates the material from the connecting strip. The material moves to the conveyor belt through the guide plate to achieve continuous feeding, thereby achieving the effect of continuous and precise feeding of material along the conveyor belt. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the automatic motor brush holder feeding and automatic carbon brush retraction and fixing device proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the turntable for the automatic feeding and carbon brush retraction fixing device for the motor brush holder proposed in this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the storage bin of the automatic motor brush holder feeding and carbon brush automatic retraction fixing device proposed in this utility model.

[0021] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 for Figure 4 Enlarged view of point C in the middle.

[0023] Legend:

[0024] 1. Base plate; 2. Support frame; 3. Operating platform; 4. Turntable; 5. Storage bin; 6. Brush holder floating column; 7. Brush holder mounting bracket; 8. Top carbon brush column; 9. ABS brush holder seat; 10. Cylinder; 11. Carbon brush clamp; 12. Hole; 13. Brush clamp holder; 14. Spring 1; 15. Fixing plate 1; 16. Drive shaft; 17. Drive gear; 18. Connecting shaft; 19. Connecting gear; 20. Toothed belt; 21. Connecting strip; 22. Fixing plate 2; 23. Fixing block; 24. Rotating shaft; 25. Guide plate; 26. Conveyor belt; 27. Spring 2. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1 to 3 This utility model provides an embodiment one: an automatic carbon brush retraction and fixing device, including a base plate 1. The base plate 1 can bear the weight and working load from components such as the support frame 2 and the turntable 4, preventing displacement or shaking of the device and ensuring the stability and reliability of the automatic carbon brush retraction and fixing process. The support frame 2 is fixedly connected to the top of the base plate 1. Its main function is to raise the operating platform 3 and other components to a suitable working height, facilitating maintenance by operators or achieving automated operation. At the same time, it evenly transfers the load of the upper structure to the base plate 1, ensuring the stability of the overall structure of the device. The operating platform 3 is fixedly connected to the inner wall of the support frame 2. When the device is running, the operating platform 3 can stably support the turntable 4 and its brush holder mounting bracket 7 and other components, and is the core working platform for the device to realize the automatic carbon brush retraction and fixing function.

[0027] A turntable 4 is rotatably connected to the top of the operating platform 3. The rotation of the turntable 4 allows the device to switch between different workstations, improving the automation level and work efficiency of the device. A storage bin 5 is fixedly connected to the top of the base plate 1. During device operation, the storage bin 5 can automatically or manually supply carbon brushes to components such as the brush holder mounting bracket 7 on the turntable 4, ensuring the continuity of the carbon brush installation and repositioning process, reducing the frequency of manual feeding, and improving the automation level of the device. The brush holder mounting bracket 7 is fixedly connected to the top of the turntable 4. When the turntable 4 rotates, the brush holder mounting bracket 7 rotates accordingly, driving components such as the ABS brush holder seat 9 on it to move to different workstations. An ABS brush holder seat 9 is fixedly connected to the right side of the brush holder mounting bracket 7 for installing components such as the brush holder floating column 6 and the carbon brush clip 11.

[0028] In the device, the ABS brush holder 9 provides a mounting base for components such as the carbon brush clip 11. Simultaneously, during the carbon brush retraction and fixing process, it can withstand the forces exerted by the carbon brush clip 11, the top carbon brush post 8, and other components, ensuring the stability and reliability of the carbon brush fixation. Brush holder floating posts 6 are slidably connected to the inner walls of both the front and rear sides of the ABS brush holder 9. When the carbon brush is installed or retracted, the brush holder floating posts 6 can slide up and down within the grooves of the ABS brush holder 9, providing support and allowing the ABS brush holder 9 to adaptively adjust its position within a certain range. Springs 27 are fixedly connected to the bottom ends of both brush holder floating posts 6. When the brush holder floating post 6 is subjected to an upward force, the springs 27 compress and store elastic potential energy; when the force disappears, the springs 27 release the elastic potential energy, pushing the brush holder floating posts 6 back to their original position. A cylinder 10 is fixedly connected to the left side of the brush holder mounting bracket 7. During the carbon brush retraction and fixing process, after receiving a control signal, the piston rod of the cylinder 10 extends and pushes the top carbon brush column 8 to move, thus retracting the carbon brush to the fixed position.

[0029] A top carbon brush post 8 is slidably connected to the inner wall of the brush holder mounting bracket 7. When the piston rod of the cylinder 10 extends, the top carbon brush post 8 slides on the inner wall of the brush holder mounting bracket 7, pushing the carbon brush in the carbon brush clamp 11 back into place. A spring 14 is sleeved on the outside of the top carbon brush post 8. When the cylinder 10 pushes the top carbon brush post 8 to extend, the spring 14 is compressed and stores elastic potential energy; when the piston rod of the cylinder 10 retracts, the spring 14 releases elastic potential energy, pushing the top carbon brush post 8 back to its original position. A carbon brush clamp 11 is slidably connected to the inner wall of the ABS brush holder 9. Its main function is to clamp the carbon brush and, under the push of the top carbon brush post 8, push the carbon brush back to its fixed position. A brush clamp frame 13 is fixedly connected to the right side of the ABS brush holder 9. In the device, the brush clamp frame 13 can enhance the installation stability of the carbon brush clamp 11, prevent the carbon brush clamp 11 from shaking or shifting during operation, and ensure that the carbon brush clamp 11 can accurately clamp the carbon brush. The bottom end of the ABS brush holder 9 has holes 12 on the front and back sides.

[0030] Reference Figures 1 to 3The bottom end of the ABS brush holder 9 is fixedly connected to the top end of the turntable 4. When the turntable 4 rotates under the action of the drive device, the ABS brush holder 9 can rotate from the carbon brush mounting position to the carbon brush return fixing position, ensuring the orderly connection of each link of the automatic carbon brush return fixing device. The bottom end of the cylinder 10 is fixedly connected to the top end of the turntable 4. When the turntable 4 drives the brush holder mounting bracket 7, ABS brush holder 9 and other components to rotate, the cylinder 10 can synchronously switch working positions. The two springs 27 are externally slidably connected to the inner wall of the bottom end of the ABS brush holder 9. When the carbon brush changes position due to wear or other factors during operation, the brush holder floating column 6 drives the springs 27 to slide on the inner wall of the bottom end of the ABS brush holder 9. The springs 27 absorb and buffer external forces through elastic deformation, maintaining the floating state of the ABS brush holder 9, ensuring that the carbon brush and commutator always maintain appropriate contact pressure.

[0031] Spring 14 is externally slidably connected to the outside of the brush holder mounting bracket 7. When cylinder 10 pushes the top carbon brush post 8 to extend, spring 14 is compressed and slides along the outside of the brush holder mounting bracket 7, storing elastic potential energy. When the piston rod of cylinder 10 retracts, spring 14 releases its potential energy, pushing the top carbon brush post 8 to reset. The right side of the top carbon brush post 8 is fixedly connected to the left side of the brush holder 13. When cylinder 10 pushes the top carbon brush post 8, the top carbon brush post 8 can accurately transmit the thrust to the brush holder 13, thereby driving the carbon brush clamp 11 and the carbon brush to move. The right side of the brush holder 13 is fixedly connected to the left side of the carbon brush clamp 11. As an intermediate connecting component, the brush holder 13 transmits the thrust from the top carbon brush post 8 to the carbon brush clamp 11, so that the carbon brush clamp 11 can drive the carbon brush to complete the retraction and fixing action under the push of the top carbon brush post 8.

[0032] Example 2: Refer to Figures 4 to 6 An automatic brush holder feeding device includes an automatic carbon brush retraction and fixing device, and two fixing plates 15, which provide a stable support structure for components such as a power shaft 16 and a connecting shaft 18, ensuring accurate installation of each component and enabling the entire transmission system to operate smoothly. The power shaft 16 is rotatably connected to the top of the two fixing plates 15 on their adjacent sides. Its main function is to transmit the power of the drive motor to a power gear 17, providing power input for the entire transmission system and serving as the power source for the automatic brush holder feeding. The power gear 17 is externally fixedly connected to the power shaft 16. When the power shaft 16 rotates, the power gear 17 rotates synchronously and meshes with a toothed belt 20, transmitting power to the toothed belt 20. The precise manufacturing and installation of the power gear 17 ensures the smoothness and accuracy of power transmission.

[0033] A connecting shaft 18 is rotatably connected to the bottom of the two fixed plates 15 on their adjacent sides. The main function of the connecting shaft 18 is to support the connecting gear 19 and, together with the power shaft 16, form the transmission path of the toothed belt 20. The connecting gear 19 is fixedly connected to the outside of the connecting shaft 18. When the power gear 17 drives the toothed belt 20, the connecting gear 19 acts as a driven wheel, supporting the toothed belt 20 and ensuring its transmission stability. The reasonable arrangement of the connecting gear 19 makes the force on the toothed belt 20 more even, extending its service life. The toothed belt 20 is slidably connected to the adjacent sides of the two fixed plates 15. Driven by the power gear 17, the toothed belt 20 moves linearly along the transmission path, driving components such as the connecting strip 21.

[0034] Multiple connecting strips 21 are fixedly connected to the external surface of the toothed belt 20. When the toothed belt 20 moves under the drive of the power gear 17, the connecting strips 21 move synchronously, driving the brush holder from one station to another, realizing the automatic feeding process of the brush holder. Fixed plates 22 are fixedly connected to the right sides of both fixed plates 15. The main function of the fixed plates 22 is to provide mounting support for components such as the fixed block 23 and the guide plate 25, and to effectively connect these components to the transmission system on the fixed plates 15, making the entire device an organic whole. Fixed blocks 23 are fixedly connected to the top of both fixed plates 22. During device operation, the fixed blocks 23 can withstand the torque and pressure transmitted by the rotating shaft 24 and the guide plate 25, ensuring the stability of the rotating shaft 24 and providing reliable protection for the guiding function of the guide plate 25.

[0035] A rotating shaft 24 is rotatably connected to the adjacent side of the two fixed blocks 23. During the brush holder loading process, the guide plate 25 can be adjusted in angle as needed to provide precise guidance for the movement of the brush holder. The guide plate 25 is fixedly connected to the outside of the rotating shaft 24. During the brush holder loading process, the guide plate 25 plays a transition and guiding role, guiding the brush holder on the conveyor belt 26 to the connecting bar 21 and ensuring that the brush holder accurately aligns with the fixed structure on the connecting bar 21. The conveyor belt 26 is fixedly connected to the right side of the two fixed blocks 22. During device operation, the conveyor belt 26 transports the brush holder from the upstream process to the vicinity of the guide plate 25, providing a material source for the automatic loading of the brush holder. The inner wall of the toothed belt 20 is meshed with the outside of the power gear 17. When the power gear 17 rotates under the drive of the power shaft 16, its teeth mesh with the teeth of the toothed belt 20, transmitting power to the toothed belt 20, causing the toothed belt 20 to move along the transmission path.

[0036] The inner wall of the toothed belt 20 is meshed with the outer wall of the connecting gear 19. During the movement of the toothed belt 20, the connecting gear 19 rotates together with the toothed belt 20, reducing the stress deformation of the toothed belt 20 and improving the stability of the transmission. Multiple connecting strips 21 are externally slidably connected to the inner walls of two adjacent fixed plates 15. This sliding connection provides precise guidance for the movement of the connecting strips 21, ensuring that they move smoothly along a predetermined trajectory under the drive of the toothed belt 20. The left outer wall of the guide plate 25 is slidably connected to the inner walls of two adjacent connecting strips 21. During the transfer of the brush holder from the conveyor belt 26 to the connecting strips 21, the left outer wall of the guide plate 25 slides against the inner wall of the connecting strips 21, providing a smooth transition path for the brush holder.

[0037] Working principle: The top carbon brush column 8 is pushed to the left by the cylinder 10. The top carbon brush column 8 drives the brush holder 13 and the carbon brush clamp 11 to slide within the ABS brush holder seat 9. At the same time, the brush holder floating column 6 is elastically supported by the second spring 27 and can slide up and down within the ABS brush holder seat 9. Through the combined force of the cylinder 10 and the elastic force of the second spring 27, the carbon brush clamp 11 accurately pushes the carbon brush to a fixed position. During this period, the first spring 14 provides a reset buffer for the top carbon brush column 8, thereby realizing automatic feeding, positioning and firm fixation of the carbon brush. The cylinder 10 precisely controls the pushing force of the top carbon brush column 8. With the elastic adjustment of the brush holder floating column 6 by the second spring 27, the carbon brush clamp 11 adapts to the position deviation of the brush holder during the sliding process, thereby achieving millimeter-level accuracy in carbon brush feeding and positioning and vibration resistance after fixation, avoiding position deviation and loosening caused by manual operation.

[0038] The drive shaft 16 drives the drive gear 17 to rotate. Through the meshing transmission of the toothed belt 20 with the drive gear 17 and the connecting gear 19, the toothed belt 20 drives the connecting bar 21 to slide back and forth along the fixed plate 15. The connecting bar 21 then drives the guide plate 25 to swing around the rotating shaft 24, continuously conveying the material on the conveyor belt 26 after it is guided by the guide plate 25. Through the precise meshing transmission of the drive gear 17 and the toothed belt 20, combined with the stable drive of the guide plate 25 by the connecting bar 21, a continuous and uninterrupted conveying path is formed between the conveyor belt 26 and the feeding position, thereby achieving a highly efficient and stable automated feeding effect and avoiding the efficiency fluctuations and material jamming problems of traditional feeding methods.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Carbon brush automatic dialing back fixing device, comprising a base plate (1), characterized in that: A support frame (2) is fixedly connected to the top of the base plate (1). An operating platform (3) is fixedly connected to the inner wall of the support frame (2). A turntable (4) is rotatably connected to the top of the operating platform (3). A storage bin (5) is fixedly connected to the top of the base plate (1). A brush holder mounting bracket (7) is fixedly connected to the top of the turntable (4). An ABS brush holder seat (9) is fixedly connected to the right side of the brush holder mounting bracket (7). Brush holder floating columns (6) are slidably connected to the front and rear inner walls of the ABS brush holder seat (9). Spring 2 (27) is fixedly connected to the bottom end of each brush holder floating column (6). Cylinder (10) is fixedly connected to the left side of the brush holder mounting bracket (7). Top carbon brush column (8) is slidably connected to the inner wall of the brush holder mounting bracket (7). Spring 1 (14) is sleeved on the outside of the top carbon brush column (8). Carbon brush clip (11) is slidably connected to the inner wall of the ABS brush holder (9). Brush clip bracket (13) is fixedly connected to the right side of the ABS brush holder (9). Holes (12) are opened on the front and rear sides of the bottom end of the ABS brush holder (9).

2. The automatic carbon brush throwback fixture of claim 1, wherein: The bottom end of the ABS brush holder (9) is fixedly connected to the top end of the turntable (4), and the bottom end of the cylinder (10) is fixedly connected to the top end of the turntable (4).

3. The automatic carbon brush retraction and fixing device according to claim 1, characterized in that: The two springs (27) are externally slidably connected to the inner wall of the bottom end of the ABS brush holder (9), and the spring (14) is externally slidably connected to the outside of the brush holder mounting bracket (7).

4. The automatic carbon brush throwback fixture of claim 1, wherein: The right side of the top carbon brush post (8) is fixedly connected to the left side of the brush holder (13), and the right side of the brush holder (13) is fixedly connected to the left side of the carbon brush holder (11).

5. An automatic motor brush holder feeding device, characterized in that, The automatic carbon brush retraction fixing device according to any one of claims 1-4 further includes two fixing plates (15), a power shaft (16) is rotatably connected to the top end of the two fixing plates (15) on their adjacent sides, a power gear (17) is fixedly connected to the outside of the power shaft (16), a connecting shaft (18) is rotatably connected to the bottom end of the two fixing plates (15) on their adjacent sides, a connecting gear (19) is fixedly connected to the outside of the connecting shaft (18), a toothed belt (20) is slidably connected to the adjacent side of the two fixing plates (15), a plurality of connecting strips (21) are fixedly connected to the outside of the toothed belt (20), a fixing plate (22) is fixedly connected to the right side of the two fixing plates (15), a fixing block (23) is fixedly connected to the top end of the two fixing plates (22), and a rotating shaft (24) is rotatably connected to the adjacent side of the two fixing blocks (23).

6. The automatic motor brush holder feeding device according to claim 5, characterized in that: The rotating shaft (24) is fixedly connected to a guide plate (25), and the two fixed plates (22) are fixedly connected to a conveyor belt (26) on their right sides.

7. The automatic feeding device for motor brush holders according to claim 5, characterized in that: The inner wall of the toothed belt (20) is meshed with the outside of the power gear (17), and the inner wall of the toothed belt (20) is meshed with the outside of the connecting gear (19).

8. The automatic motor brush holder feeding device according to claim 6, characterized in that: The outer slide connection of multiple connecting strips (21) is arranged on the inner wall of the side near the two fixing plates (15), and the left outer slide connection of the guide plate (25) is arranged on the inner wall of the side near the two connecting strips (21).

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