Electric vehicle drum brake end cover polishing device

Abstract

The utility model belongs to the technical field of drum brake end cover polishing, and particularly relates to an electric vehicle drum brake end cover polishing device which comprises a mounting frame, a rotating shaft is rotatably mounted in the mounting frame, four small motors are assembled on the outer wall of the rotating shaft, polishing discs are mounted at the output ends of the small motors, and a limiting hole is formed in one side of the mounting frame. A side lug is mounted on one side of the rotating shaft, an L-shaped plate is fixed to one side of the mounting frame, a limiting rod is slidably mounted in the L-shaped plate, a limiting block is mounted on one side of the limiting rod, and a spring is fixedly connected between the limiting block and the L-shaped plate; the limiting rods can slide out of the side lugs and the limiting holes by pulling the limiting blocks, then the rotating shaft is rotated, the needed polishing disc is selected, once the limiting blocks are selected and released, the limiting rods are pushed back to the original position through the elastic force of the springs, and the polishing discs of different sizes can be conveniently replaced so as to adapt to drum brake end covers of different sizes and shapes; therefore, the surface smoothness of the drum brake end cover can be ensured to be consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of drum brake end cover polishing, in particular to a polishing device for an electric vehicle drum brake end cover. Background Art

[0002] With the rapid development of the electric vehicle industry, electric vehicle drum brake end covers are key components. During the production process, in order to ensure good contact between the brake pads and the end covers to improve braking performance and reduce friction, electric vehicle drum brake end covers usually need to polish the surface in contact with the brake pads, so a polishing device is needed.

[0003] In the prior art, first, the drum brake end cover needs to be placed on a workbench and fixed by a clamp to ensure that the end cover does not move or rotate during the polishing process. Next, the polishing mechanism is started to drive the polishing disc to rotate at high speed, thereby effectively removing burrs, oxide layers or uneven parts on the surface.

[0004] However, the above-mentioned polishing device still has some problems. In practical applications, due to the different sizes of the drum brake end covers, it is inconvenient to polish the drum brake end covers during polishing operations, which will result in some areas not being fully polished, resulting in inconsistent surface finish, which will affect the polishing quality. Therefore, in view of the above-mentioned problems, a polishing device for the drum brake end cover of an electric vehicle is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes a polishing device for an electric vehicle drum brake end cover.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: the utility model is a polishing device for an electric vehicle drum brake end cover, comprising a main board, a rotation assembly is installed on the upper surface of the main board, the rotation assembly comprises a mounting frame, a rotating shaft is rotatably installed inside the mounting frame, four small motors are equidistantly installed on the outer wall of the rotating shaft and located inside the mounting frame, polishing discs of different sizes are respectively installed at the output ends of the small motors, a limiting hole is provided inside one side of the mounting frame, four side ears are equidistantly installed on the outer wall of one side of the rotating shaft, an L-shaped plate is fixedly installed on one side of the mounting frame, a limiting rod is slidably penetrated and installed inside the L-shaped plate, a limiting block is installed on one side of the limiting rod, one end of the limiting rod is slidably penetrated and arranged inside the side ear and the limiting hole, a spring is fixedly connected between the limiting block and the L-shaped plate, the spring is sleeved on the outer wall of the limiting rod, and polishing discs of different sizes can be easily replaced to adapt to drum brake end covers of different sizes and shapes, thereby ensuring the consistency of the surface finish of the drum brake end cover and ensuring the polishing quality.

[0007] Preferably, a fixing frame is fixedly installed on the top side of the main board, a cylinder is installed on the top side of the fixing frame, an acting rod is installed on the acting end of the cylinder, and the mounting frame is fixedly installed on the bottom side of the acting rod. The height of the mounting frame and the polishing disk can be easily adjusted to accommodate drum brake end covers of different heights.

[0008] Preferably, a servo motor is installed on the top side of the main board, a rotating shaft is installed on the output end of the servo motor, a disc is installed on the outer wall of the rotating shaft, three arc grooves are equidistantly opened inside the disc, and sliding rods are slidably installed inside the arc grooves, so as to fix drum brake end covers of different sizes.

[0009] Preferably, a fixed seat is installed on the top side of the main board, wherein the rotating shaft rotates and passes through the interior of the fixed seat, and the disc is installed inside the fixed seat, four support columns are equidistantly installed on the top side of the fixed seat, a placement plate is fixedly installed on the top side of the support column, three slide grooves are equidistantly opened inside the placement plate, sliders are slidably installed inside the slide grooves, the top end of the slide rod is fixedly connected to the slider, and the top side of the slider is equipped with a clamping block, so as to fix the drum brake end cover and ensure its stability during the polishing process.

[0010] Preferably, the fixed frame has a dust box installed on one side of the fixed frame, a filter screen is installed inside the dust box, a fan is installed through one side of the interior of the dust box, a movable door is hinged on the dust box at one side of the filter screen, a fixing buckle is fixed on one side of the movable door, a dust suction pipe is installed through the fixed frame on one side of the dust box above the filter screen, a dust suction hood is installed on one end of the dust suction pipe, and the dust suction hood is located obliquely above the fixed component, which effectively reduces the impact of dust generated during polishing on the working environment and facilitates the collection and treatment of dust.

[0011] Preferably, a control panel is installed on one side of the fixing frame, and the control panel is used to control the operation of the electrical components inside the device, and can conveniently control the start, stop and speed adjustment functions of the polishing device.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model can pull the limit block to make the limit rod slide out from the side ear and the limit hole, and then rotate the rotating shaft to select the required polishing disc. Once selected, release the limit block, and the elastic force of the spring pushes the limit rod back to its original position. Polishing discs of different sizes can be easily replaced to adapt to drum brake end covers of different sizes and shapes, thereby ensuring the consistency of the surface finish of the drum brake end cover and ensuring the polishing quality;

[0014] 2. The utility model starts the servo motor, and its output end drives the rotating shaft to rotate, and the disc rotates accordingly. The slide rod slides along the trajectory of the arc groove during the rotation of the disc. The movement of the slide rod drives the slider to slide in the slide groove. The sliding of the slider causes the clamping block to move accordingly, so that the drum brake end cover can be fixed according to its shape and size, thereby ensuring its stability during the polishing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the main structure of the polishing device in the utility model;

[0017] Figure 2 This is a schematic diagram of the polishing disc rotation assembly structure;

[0018] Figure 3 for Figure 2 The enlarged structural diagram of part A in the middle;

[0019] Figure 4 It is a schematic diagram of the explosion structure of the fixed component;

[0020] Figure 5 for Figure 1 The enlarged structural diagram of part B is shown in the figure.

[0021] In the figure: 1. main board; 2. mounting frame; 3. rotating shaft; 4. small motor; 5. polishing disc; 6. limiting hole; 7. side ear; 8. L-shaped plate; 9. limiting rod; 10. limiting block; 11. spring; 12. fixing frame; 13. cylinder; 14. action rod; 15. servo motor; 16. rotating shaft; 17. disc; 18. arc groove; 19. sliding rod; 20. fixing seat; 21. supporting column; 22. placing plate; 23. sliding groove; 24. sliding block; 25. clamping block; 26. dust box; 27. filter; 28. fan; 29. ​​movable door; 30. fixing buckle; 31. dust suction pipe; 32. dust suction hood; 33. control panel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 As shown, a polishing device for an end cover of an electric vehicle drum brake comprises a main board 1, a rotation assembly is installed on the upper surface of the main board 1, the rotation assembly comprises a mounting frame 2, a rotating shaft 3 is rotatably installed inside the mounting frame 2, four small motors 4 are equidistantly installed on the outer wall of the rotating shaft 3 and located inside the mounting frame 2, polishing discs 5 of different sizes are respectively installed at the output ends of the small motors 4, a limiting hole 6 is provided inside one side of the mounting frame 2, four side ears 7 are equidistantly installed on the outer wall of one side of the rotating shaft 3, an L-shaped plate 8 is fixedly installed on one side of the mounting frame 2, a limiting rod 9 is slidably installed inside the L-shaped plate 8, a limiting block 10 is installed on one side of the limiting rod 9, one end of the limiting rod 9 is slidably installed inside the side ear 7 and the limiting hole 6, a spring 11 is fixedly connected between the limiting block 10 and the L-shaped plate 8, and the spring 11 is sleeved on the outer wall of the limiting rod 9;

[0024] A fixing frame 12 is fixedly installed on the top side of the main board 1, a cylinder 13 is installed on the top side of the fixing frame 12, an acting rod 14 is installed on the acting end of the cylinder 13, the mounting frame 2 is fixedly installed on the bottom side of the acting rod 14, and a control panel 33 is installed on one side of the fixing frame 12; during operation, in actual application, due to the different sizes of the drum brake end covers, it is inconvenient to polish the drum brake end covers during polishing operations, which will result in some areas not being fully polished, resulting in inconsistent surface finish, which will affect the polishing quality. The limiting block 10 can be pulled to make the limiting rod 9 slide out of the side ear 7 and the limiting hole 6, and then the rotating shaft 3 is rotated to select the required polishing disc 5. Once selected, the limiting block 10 is released. The elastic force of the spring 11 pushes the limit rod 9 back to its original position, and fixes the rotating shaft 3 through the side ear 7 and the limit hole 6 to ensure that the polishing disc 5 does not rotate during the polishing process. The polishing discs 5 of different sizes can be easily replaced to adapt to drum brake end covers of different sizes and shapes, thereby ensuring the consistency of the surface finish of the drum brake end cover and ensuring the polishing quality. During the polishing process, the cylinder 13 will telescope according to the instructions of the control panel 33. When the active end of the cylinder 13 moves downward, the mounting frame 2 and the rotating assembly inside it descend, so that the polishing disc 5 is in close contact with the inner wall of the drum brake end cover, and the polishing operation begins. After polishing is completed, the active end of the cylinder 13 moves upward, and the active rod 14 creates an appropriate distance between the polishing disc 5 and the drum brake end cover.

[0025] See also Figure 4 As shown, a servo motor 15 is installed on the top side of the main board 1, a rotating shaft 16 is installed on the output end of the servo motor 15, a disc 17 is installed on the outer wall of the rotating shaft 16, three arc grooves 18 are evenly spaced inside the disc 17, and slide bars 19 are slidably installed inside the arc grooves 18;

[0026] A fixing seat 20 is installed on the top side of the main board 1, wherein the rotating shaft 16 rotates and penetrates into the inside of the fixing seat 20, and the disc 17 is installed in the inside of the fixing seat 20, and four supporting columns 21 are evenly installed on the top side of the fixing seat 20, and a placing plate 22 is fixedly installed on the top side of the supporting column 21, and three sliding grooves 23 are evenly opened inside the placing plate 22, and sliders 24 are slidably installed inside the sliding grooves 23, and the top of the sliding rod 19 is fixedly connected to the slider 24, and the top side of the slider 24 is equipped with a clamping block 25; when working, in order to ensure good contact between the brake pad and the end cover during the production process, the drum brake end cover is provided with a plurality of support columns 21, and a plurality of support columns 21 are provided with ... In order to improve braking performance and reduce friction, the electric vehicle drum brake end cover usually needs to polish the surface in contact with the brake pad. During the polishing process, in order to ensure the stability of the drum brake end cover, the polished drum brake end cover is placed on the top side of the placement plate 22, and the servo motor 15 is started. Its output end drives the rotating shaft 16 to rotate, and the disc 17 rotates accordingly. The slide bar 19 slides along the arc groove 18 during the rotation of the disc 17. The movement of the slide bar 19 drives the slider 24 to slide in the slide groove 23, so that the clamping block 25 moves accordingly, thereby achieving the ability to fix the drum brake end cover according to its shape and size to ensure its stability during the polishing process.

[0027] See also Figure 1 , 5As shown, the fixed frame 12, a dust box 26 is installed on one side of the fixed frame 12, a filter screen 27 is installed inside the dust box 26, a fan 28 is installed through one side of the inside of the dust box 26, a movable door 29 is hinged on one side of the dust box 26 located at the filter screen 27, a fixing buckle 30 is fixed on one side of the movable door 29, a dust suction pipe 31 is installed through the fixed frame 12 on one side of the dust box 26 located above the filter screen 27, a dust suction hood 32 is installed at one end of the dust suction pipe 31, and the dust suction hood 32 is located obliquely above the fixed component; during operation, a large amount of dust and debris will be generated during the polishing process, such as If it is not collected, it will pollute the working environment and cause harm to the health of the operators. When polishing operation is performed, the fan 28 is started to generate suction to suck in the dust and debris generated during the polishing process. The sucked dust and debris are transmitted to the dust box 26 through the dust suction pipe 31. The filter 27 filters out the dust and debris, purifies the air, and prevents it from entering the fan 28. The clean air is transported out from the output end of the fan 28. When it is necessary to clean the dust and debris in the dust box 26, the movable door 29 can be opened and fixed by the fixing buckle 30 to perform the cleaning operation, which effectively reduces the impact of the dust generated during the polishing process on the working environment.

[0028] Working principle: by placing the polished drum brake end cover on the top side of the placement plate 22, starting the servo motor 15, its output end drives the rotating shaft 16 to rotate, and the disc 17 rotates accordingly. The slide bar 19 slides along the arc groove 18 during the rotation of the disc 17. The movement of the slide bar 19 drives the slider 24 to slide in the slide groove 23, so that the clamping block 25 moves accordingly, so that the drum brake end cover can be fixed according to its shape and size, ensuring its stability during the polishing process;

[0029] The limiting block 10 can be pulled to make the limiting rod 9 slide out from the side ear 7 and the limiting hole 6, and then the rotating shaft 3 is rotated to select the required polishing disc 5. Once selected, the limiting block 10 is released, and the elastic force of the spring 11 pushes the limiting rod 9 back to its original position, and the rotating shaft 3 is fixed by the side ear 7 and the limiting hole 6 to ensure that the polishing disc 5 does not rotate during the polishing process. Polishing discs 5 of different sizes can be easily replaced to adapt to drum brake end covers of different sizes and shapes, so as to ensure the consistency of the surface finish of the drum brake end cover and ensure the polishing quality. During the polishing process, the cylinder 13 will perform telescopic movement according to the instructions of the control panel 33. When the active end of the cylinder 13 moves downward, the mounting frame 2 and the rotating assembly inside it descend, so that the polishing disc 5 is in close contact with the inner wall of the drum brake end cover, and the polishing operation begins. After the polishing is completed, the active end of the cylinder 13 moves upward, and the active rod 14 creates an appropriate distance between the polishing disc 5 and the drum brake end cover.

[0030] When polishing is performed, the fan 28 is started to generate suction to suck in the dust and debris generated during the polishing process. The sucked dust and debris are transmitted to the dust box 26 through the dust suction pipe 31. The filter 27 filters out the dust and debris, purifies the air, and prevents them from entering the fan 28. The clean air is transported out from the output end of the fan 28. When it is necessary to clean the dust and debris in the dust box 26, the movable door 29 can be opened and fixed by the fixing buckle 30 to perform the cleaning operation, which effectively reduces the impact of the dust generated during the polishing process on the working environment.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A polishing device for an electric vehicle drum brake end cover, characterized in that: The invention comprises a main board (1), the upper surface of which is mounted a rotation assembly, the rotation assembly comprising a mounting frame (2), a rotating shaft (3) being rotatably mounted inside the mounting frame (2), four small motors (4) being equidistantly mounted on the outer wall of the rotating shaft (3) inside the mounting frame (2), polishing discs (5) of different sizes being mounted on the output ends of the small motors (4), a limiting hole (6) being arranged inside one side of the mounting frame (2), and a side outer wall of the rotating shaft (3) Four side ears (7) are installed at equal intervals, an L-shaped plate (8) is fixedly installed on one side of the installation frame (2), a limit rod (9) is installed inside the L-shaped plate (8) and is slidably penetrated, a limit block (10) is installed on one side of the limit rod (9), one end of the limit rod (9) is slidably penetrated inside the side ear (7) and the limit hole (6), a spring (11) is fixedly connected between the limit block (10) and the L-shaped plate (8), and the spring (11) is sleeved on the outer wall of the limit rod (9).

2. The electric vehicle drum brake end cover polishing device according to claim 1, characterized in that: A fixing frame (12) is fixedly mounted on the top side of the main board (1), a cylinder (13) is mounted on the top side of the fixing frame (12), an acting rod (14) is mounted on the acting end of the cylinder (13), and the mounting frame (2) is fixedly mounted on the bottom side of the acting rod (14).

3. The electric vehicle drum brake end cover polishing device according to claim 2, characterized in that: A servo motor (15) is installed on the top side of the main board (1), a rotating shaft (16) is installed on the output end of the servo motor (15), a disc (17) is installed on the outer wall of the rotating shaft (16), three arc grooves (18) are evenly spaced inside the disc (17), and sliding rods (19) are slidably installed inside the arc grooves (18).

4. The electric vehicle drum brake end cover polishing device according to claim 3, characterized in that: A fixing seat (20) is installed on the top side of the main board (1), wherein the rotating shaft (16) rotates and penetrates into the interior of the fixing seat (20), and the disc (17) is installed inside the fixing seat (20), and four supporting columns (21) are evenly installed on the top side of the fixing seat (20), and a placement plate (22) is fixedly installed on the top side of the supporting columns (21), and three sliding grooves (23) are evenly spaced inside the placement plate (22), and sliders (24) are slidably installed inside the sliding grooves (23), the top end of the sliding rod (19) is fixedly connected to the slider (24), and the top side of the slider (24) is equipped with a clamping block (25).

5. The electric vehicle drum brake end cover polishing device according to claim 4, characterized in that: The fixed frame (12) is provided with a dust box (26) on one side of the fixed frame (12), a filter screen (27) is installed inside the dust box (26), a fan (28) is installed through one side of the inside of the dust box (26), a movable door (29) is hingedly connected to the dust box (26) on one side of the filter screen (27), a fixing buckle (30) is fixed to one side of the movable door (29), a dust suction pipe (31) is installed through the fixed frame (12) on one side of the dust box (26) located above the filter screen (27), a dust suction hood (32) is installed at one end of the dust suction pipe (31), and the dust suction hood (32) is located obliquely above the fixed assembly.

6. The electric vehicle drum brake end cover polishing device according to claim 5, characterized in that: A control panel (33) is installed on one side of the fixing frame (12), and the control panel (33) is used for operating and controlling the electrical components inside the device.

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