Accessory polishing device for electric vehicle production

Abstract

The utility model discloses an accessory polishing device for electric vehicle production, and belongs to the technical field of accessory production polishing. The device comprises a first box body, a second box body, a polishing disc, a polishing belt, an adjusting element and a transmission element. Wherein the first box body is fixed on the second box body and is communicated with the second box body, the polishing disc is rotationally arranged in the first box body, two symmetrical polishing belts are arranged on the polishing disc, a polishing area is formed between the two polishing belts, and the adjusting element is arranged on the polishing disc. Comprising a buffer wheel abutting against the inner belt face of the polishing belt and an adjusting wheel abutting against the outer belt face of the polishing belt, and the polishing disc or the polishing belt is driven through a transmission element. The polishing device has the beneficial effects that the position of the adjusting wheel is changed by operating the adjusting element, the polishing belt can be pushed to deform, then under transmission of the transmission element, the polishing disc or the polishing belt can polish a round pipe or a square pipe according to different requirements, and therefore the application range of the polishing device is widened.

Description

Technical Field

[0001] This invention relates to the field of polishing technology for parts production, and specifically to a polishing device for electric vehicle parts production. Background Technology

[0002] In the manufacturing of electric vehicles, key body components such as the main frame, chassis frame, and suspension system extensively utilize square or round tubing as structural support. To ensure these tubing components possess good corrosion resistance, mechanical properties, and aesthetics, surface polishing is an indispensable and crucial process. Existing common tubing polishing equipment typically employs a structure with two polishing belts arranged symmetrically. The two polishing belts are fixedly mounted on the same polishing disc, which is driven by a motor to rotate at high speed, thus forming a ring-shaped polishing area. In actual use, the operator inserts the tubing to be polished into this ring-shaped polishing area, and the high-speed rotating polishing belts polish the surface of the tubing.

[0003] However, the drawback of this existing device is that, because the polishing area formed by the high-speed rotation of the polishing disc is circular, the device can only achieve a relatively ideal polishing process for round tubes in electric vehicles. When square tubes are placed in this polishing area, the corners of the tubes are over-polished while the flat surfaces are under-polished. Therefore, the existing polishing device is not well adapted to square tubes. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a polishing device for electric vehicle manufacturing parts, thereby solving the problem that existing polishing devices cannot simultaneously meet the polishing needs of both square tubing and round tubing for electric vehicles.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a polishing device for parts used in electric vehicle production, comprising: a first housing fixed on a second housing, the first housing and the second housing being interconnected, the first housing having a through first polishing port; a polishing disc rotatably disposed within the first housing, the polishing disc having a second polishing port used in conjunction with the first polishing port; two polishing belts symmetrically disposed on the polishing disc, the two polishing belts forming an adjustable polishing area; and an adjusting element movably disposed on the polishing disc and used in conjunction with the polishing belts; wherein the adjusting element includes a buffer wheel abutting against the inner surface of the polishing belt and an adjusting wheel abutting against the outer surface of the polishing belt, the adjusting wheel pushing the polishing belt by changing its position, the buffer wheel moving with the movement of the adjusting wheel, and the polishing disc or polishing belt being driven by a transmission element.

[0006] Optionally, a rotating shaft is rotatably connected to the polishing disc, and a fixed wheel is fixedly connected to the rotating shaft, with the polishing belt tightly fitted around the fixed wheel.

[0007] Optionally, the polishing disc has a first slot, a first column is fixed in the first slot, the buffer wheel is slidably connected to the first column, and a spring is sleeved on the first column, with the two ends of the spring abutting against the buffer wheel and the inner wall of the first slot, respectively.

[0008] Optionally, the polishing disc has a through second slot, a second column is fixed in the second slot, a movable block is slidably connected to the second column, and the adjusting wheel is rotatably connected to the movable block.

[0009] Optionally, the movable block is rotatably connected to a hook on the side away from the adjusting wheel, and the polishing disc is fixed with several hanging posts on the side away from the adjusting wheel. The hook is hung on one of the hanging posts and locked by a locking structure.

[0010] Optionally, the transmission element includes a first motor fixed inside the second housing, a transmission wheel fixed to the output end of the first motor, and the transmission wheel and the polishing disc are connected by a first transmission part.

[0011] Optionally, the transmission element further includes a movable wheel, which is detachably connected to the end of the rotating shaft away from the fixed wheel, and the movable wheels on the same side are connected by a second transmission part. A second motor is fixed in the first housing, and the second motor is used in conjunction with one of the movable wheels.

[0012] Optionally, the first housing is also hinged to a door, and the first polishing port passes through the door.

[0013] Optionally, a support is also fixed inside the first housing, and the polishing disc is rotatably connected to the support.

[0014] Optionally, the polishing disc is further provided with a locking part, which is used in conjunction with the rotating shaft.

[0015] The beneficial effects of this invention are as follows:

[0016] The adjustment element configured in this invention includes a buffer wheel and an adjustment wheel. By changing the position of the adjustment wheel, the polishing belt can be deformed. When the upper and lower polishing belts deform synchronously, a square polishing area can be formed. At this time, the position of the polishing disc is fixed, and the polishing belt is driven to rotate around the fixed wheel by a transmission element, thus realizing the polishing operation of square tubes. If it is necessary to polish the round tubes of electric vehicles, the adjustment element is reset so that the opposite surfaces of the two polishing belts are arranged parallel. By rotating the polishing disc, the two parallel surfaces of the polishing belts rotate at high speed, forming a circular polishing area, thereby completing the polishing of the round tubes of electric vehicles. The above two polishing methods can be flexibly switched, and targeted polishing treatment can be performed on tubes of different shapes according to different production polishing needs.

[0017] Meanwhile, the polishing disc has a first groove, within which a first column is fixed. A buffer wheel is slidably connected to this column and is adjusted and limited by a spring. In any polishing mode, when the cross-sectional area of ​​the pipe to be polished is slightly larger than the polishing area, the buffer wheel can slide along the first column, allowing the polishing belt to loosen a certain distance to fit the pipe. Simultaneously, the spring's reset function maintains the polishing belt's tautness. This design avoids relying on the polishing belt's own deformation for adaptation, effectively improving the polishing belt's lifespan and achieving buffer adjustment for polishing pipes of different sizes.

[0018] Furthermore, the second transmission unit and the movable wheel can be assembled in different states according to different transmission requirements: when polishing the round tube of the electric vehicle, all the movable wheels are fixed on the rotating shaft, and the first motor drives the first transmission unit to rotate the polishing disc to complete the polishing; when polishing the square tube, one of the movable wheels is removed and fixed on the second motor, and the corresponding second transmission unit is sleeved on the outside of the movable wheel. The second motor drives the movable wheel to rotate, which in turn drives the polishing belt on the polishing disc to achieve the polishing operation of the square tube in the square polishing area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a polishing device for electric vehicle manufacturing parts according to the present invention.

[0021] Figure 2 This is another structural schematic diagram of a polishing device for electric vehicle manufacturing parts according to the present invention.

[0022] Figure 3This is a cross-sectional schematic diagram of a polishing device for electric vehicle manufacturing parts according to the present invention (excluding the first and second housings).

[0023] Figure 4 This invention relates to a polishing device for parts used in electric vehicle production. Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 This is a schematic diagram of the structure of a polishing device for electric vehicle manufacturing parts according to the present invention (excluding the first and second housings).

[0025] Figure 6 This invention relates to a polishing device for parts used in electric vehicle production. Figure 5 Enlarged view of point B in the middle.

[0026] Figure 7 This is a schematic diagram of a polishing device for electric vehicle manufacturing, according to the present invention, used for polishing circular tubular components of electric vehicles.

[0027] Figure 8 This is a schematic diagram illustrating the polishing of a square tube using a polishing device for electric vehicle manufacturing components according to the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. First housing; 11. Housing door; 12. First polishing port; 13. Support; 14. Second motor; 2. Second housing; 21. First motor; 22. Transmission wheel; 23. First transmission part; 3. Polishing disc; 31. Rotating shaft; 32. Fixed wheel; 33. Buffer wheel; 34. Adjusting wheel; 35. Movable wheel; 351. Second transmission part; 36. Polishing belt; 37. First slot; 371. First column; 372. Spring; 38. Second slot; 381. Second column; 382. Movable block; 39. Hanging column; 391. Hook; 310. Second polishing port. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] As mentioned earlier, the drawback of existing polishing devices is that, due to the circular polishing area formed by the high-speed rotation of the polishing disc, the device can only achieve a relatively ideal polishing process for circular tubular components of electric vehicles. When square tubular components are placed in this polishing area, the corners and edges of the components are over-polished while the flat surfaces are under-polished. Therefore, existing polishing devices are not well-suited for square tubular components.

[0032] To address this issue, the present invention provides a polishing device that is applied to the production of electric vehicle parts. By adjusting the different states of the polishing belt and polishing disc, the above-mentioned problems are solved. The present invention solves the problem in the following way.

[0033] Example 1:

[0034] Please refer to the instruction manual appendix. Figures 1 to 6 As shown in the figure, the present invention provides a polishing device for parts used in electric vehicle production. The device includes a first housing 1 and a second housing 2. The first housing 1 is fixed to the second housing 2, and the first housing 1 and the second housing 2 are interconnected. A door 11 is hinged to the first housing 1, and a door lock is provided on it. The door is locked when not in use and opened when needed to clean or adjust the components inside the first housing 1. A first polishing port 12 is provided on the first housing 1, which passes through the first housing 1 and the door 11 from front to back, so that the internal space of the first housing 1 is connected to the outside.

[0035] The second housing 2 has four casters at its bottom. Inside the second housing 2 is a transmission element, which includes a first motor 21 fixed inside the second housing 2. Vents for cooling the first motor 21 are also provided on both sides of the second housing 2. Similarly, a door with a handle is located at the front of the second housing 2. This door is closed when not in use and opened when in use to operate the components inside the second housing 2.

[0036] In this first embodiment, as Figure 3 or Figure 5As shown, a support 13 is fixed inside the first housing 1, and an opening on the support 13 coincides with the first polishing opening 12. A polishing disc 3 is provided outside the support 13, and a second polishing opening 310 coinciding with the first polishing opening 12 is provided at the center of the polishing disc 3. The polishing disc 3 is also rotatably connected to the support 13 (through a bearing) through the second polishing opening 310, so that the polishing disc 3 can rotate within the first housing 1. Part of the polishing disc 3 is located inside the first housing 1, and another part extends into the interior of the second housing 2 through the area connecting the first housing 1 and the second housing 2. A transmission wheel 22 (e.g., a pulley or sprocket) is fixed on the output shaft of the first motor 21 located inside the second housing 2. The transmission wheel 22 and the polishing disc 3 are connected to each other through a first transmission part 23 (e.g., a transmission belt or chain). That is, when the transmission wheel 22 rotates at high speed with the first motor 21, the polishing disc 3 also rotates at high speed through the first transmission part 23.

[0037] In this first embodiment, as Figure 4 As shown, the polishing disc 3 is provided with two polishing belts 36, which are arranged symmetrically vertically along the rotation axis of the polishing disc 3, and there is a certain distance between the two polishing belts 36. This distance creates a polishing area between the two polishing belts 36. The polishing disc 3 is also rotatably connected to four rotating shafts 31 (such as...) via bearings. Figure 3 or Figure 4 As shown, the four rotating shafts 31 are divided into two groups of two (corresponding to one polishing belt 36). Each rotating shaft 31 is fixed with a fixed wheel 32, and the polishing belt 36 is tightly fitted onto the fixed wheel 32. The rotating shaft 31 is also provided with a locking part (e.g., a latch or screw, not shown in the figure), which can lock the position of the rotating shaft 31 so that it does not rotate.

[0038] Therefore, in the specific implementation of this embodiment, the first motor 21 is energized and driven to rotate the polishing disc 3 at high speed (e.g., Figure 7 (The rotation is indicated by the dashed arrow a), and the polishing area formed by polishing disc 3 also rotates at high speed. For example... Figure 7 As shown in the diagram, the dotted line represents the state of the polishing area during rotation. After the polishing area completes one revolution, it forms... Figure 7 A circular area is shaded in the middle. A circular tube is inserted into this area so that the outer surface of the tube contacts the surface of the polishing belt 36. The circular tube can then be polished under high-speed rotation. The circular tube is inserted into the first polishing port 12 at the front of the first housing 1 and polished through the first polishing port 12 on the housing door 11. (During this polishing process, the locking part locks the rotating shaft 31 so that the rotating shaft 31 will not drive the fixed wheel 32 to rotate. Of course, locking is not required).

[0039] Example 2:

[0040] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, the present invention provides Embodiment Two. For example... Figures 3 to 4 As shown, the polishing area formed by the two polishing belts 36 can be changed in size according to the adjustment of the adjusting elements. In this second embodiment, two sets of adjusting elements are provided (one set of adjusting elements corresponds to one polishing belt 36). Each set of adjusting elements includes two adjusting wheels 34 and one buffer wheel 33. The adjusting wheels 34 and the buffer wheel 33 are both set on the polishing disk 3 and can be adjusted in position relative to the polishing disk 3. The buffer wheel 33 is set on the inner surface of the polishing belt 36 and closely abuts against the inner surface, thereby forming a triangle with the two fixed wheels 32 and spreading the polishing belt 36 to form a triangle. The adjusting wheels 34 are as follows: Figure 3 or Figure 4 The polishing belt 36 is arranged as shown in the polishing area. Under normal conditions (i.e., when polishing the round tube of the electric vehicle), the adjusting wheel 34 does not contact the polishing belt 36.

[0041] In this second embodiment, as Figure 3 or Figure 4 As shown, a first slot 37 is provided on the polishing disc 3 at the position corresponding to the buffer wheel 33. A first column 371 is fixed inside the first slot 37, and a sliding block is slidably connected to the first column 371. The buffer wheel 33 is rotatably connected to the sliding block. A spring 372 is sleeved on the outside of the first column 371, and the two ends of the spring 372 abut against the inner wall of the first slot 37 and the buffer wheel 33 (or the sliding block), respectively. This allows the buffer wheel 33 to have a certain margin for tight contact with the polishing belt 36. Under normal conditions, under the deformation force of the spring 372, the sliding block is tightly abutted against the top wall of the first slot 37 (the side away from the adjusting wheel 34). At this time, the buffer wheel 33 is furthest from the fixed wheel 32, and the polishing belt 36 is tightly stretched. During the polishing process of the round tube of the electric vehicle, when the diameter of the round tube is slightly larger than the distance between the upper and lower polishing belts 36, inserting the round tube into the polishing area will cause a certain amount of pressure on the polishing belts 36. During this pressure process, the polishing belts 36 will exert pressure on the buffer wheel 33, causing it to move towards the polishing area. The buffer wheel 33 will then drive the sliding block to compress the spring 372, thereby changing its position, and finally achieving the polishing of round tubes of electric vehicles with different diameters.

[0042] In this second embodiment, as Figures 3 to 6As shown, a through-hole 38 is provided on the polishing disc 3 at the position corresponding to the adjusting wheel 34. A second column 381 is fixed in the second slot 38, and a movable block 382 is slidably connected to the second column 381. The adjusting wheel 34 is rotatably connected to the movable block 382. On the back of the polishing disc 3 (i.e., the side of the polishing disc 3 away from the adjusting wheel 34), a hook 391 is rotatably connected to the movable block 382. Several arrayed hanging posts 39 are fixed on the polishing disc 3. The hook 391 has a locking structure (e.g., screw, nut, or buckle) so that it can be tightly hung on one of the hanging posts 39. By adjusting the hook 391 and the different hanging posts 39, the position of the adjusting wheel 34 relative to the polishing belt 36 can be adjusted.

[0043] Therefore, in the specific implementation of this second embodiment, when the two adjusting wheels 34 move towards the buffer wheel 33 (e.g. Figure 8 The displacement in the direction indicated by arrow b (the other adjusting element is symmetrical and will not be described further here) will exert pressure on the polishing belt 36, thereby stretching the polishing belt 36 to form as shown by the arrow. Figure 7 The deformation shown is illustrated. During the deformation process, the polishing belt 36 will drive the buffer wheel 33 to move (as shown). Figure 8 The displacement is indicated by arrow c) to adapt to changes in deformation (as detailed above, and will not be repeated here). At this point, loosening the locking part of the fixed shaft 31 and applying a rotational force to the shaft 31 (through a transmission element) will cause the shaft 31 to drive the fixed wheel 32 to rotate, thereby moving the polishing belt 36, as shown by the arrow c. Figure 7 As shown, at this time, a square polishing area is formed between the polishing belts 36. The operator can insert the square tube of the electric vehicle into it to polish both sides. After these two sides are polished, the remaining two sides can be polished.

[0044] Example 3:

[0045] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, the present invention also provides Embodiment Three. For example... Figures 4 to 6 As shown, in this third embodiment, the transmission element also includes a movable wheel 35 (the movable wheel 35 can be a sprocket or a pulley). The movable wheel 35 is detachably connected (by screws or by tenon joints) to the end of the rotating shaft 31 away from the fixed wheel 32 (the rotating shaft 31 passes through the polishing disc 3). The movable wheels 35 located on the same side are connected by a second transmission part 351 (e.g., a transmission belt or chain). A second motor 14 is fixed inside the first housing 1. Figure 4 As shown.

[0046] When polishing the square tubular components of an electric vehicle is required, the operator needs to open the door 11, remove one of the movable wheels 35 along with the second transmission part 351, fix the removed movable wheel 35 to the drive shaft of the second motor 14, and then put the second transmission part 351 back on. The second motor 14 drives the movable wheel 35 to rotate, which in turn drives the other movable wheel 35 to rotate through the second transmission part 351. The movable wheel 35 in turn drives the rotating shaft 31 and the fixed wheel 32 in front of the polishing disc 3 to rotate, thereby driving the polishing belt 36 to move (e.g., Figure 7 (As indicated by the direction of the middle arrow d). This process is repeated to form a pattern as shown in the image. Figure 8 The transmission is directed in the direction of the middle arrow e. This polishes the square tubular components of the electric vehicle located in the polishing area.

[0047] Therefore, in summary, the present invention and its embodiments, compared with the prior art, have the following advantages, including but not limited to:

[0048] The adjustment element configured in this invention includes a buffer wheel 33 and an adjustment wheel 34. By changing the position of the adjustment wheel 34, the polishing belt 36 can be deformed. When the upper and lower polishing belts 36 deform synchronously, a square polishing area can be formed. At this time, the position of the polishing disc 3 is fixed, and the polishing belt 36 is driven to rotate around the fixed wheel 32 by the transmission element, thus realizing the polishing operation of the square tube of the electric vehicle. If the round tube of the electric vehicle needs to be polished, the adjustment element is reset so that the opposite surfaces of the two polishing belts 36 are arranged in parallel. By rotating the polishing disc 3, the two parallel surfaces of the polishing belts 36 are made to rotate at high speed, forming a circular polishing area, thereby completing the polishing of the round tube of the electric vehicle. The above two polishing methods can be flexibly switched, and targeted polishing treatment can be performed on tubes of different shapes according to different production polishing needs.

[0049] Meanwhile, the polishing disc 3 has a first groove 37, within which a first column 371 is fixed. A buffer wheel 33 is slidably connected to this column and is adjusted and limited by a spring 372. In any polishing mode, when the cross-sectional area of ​​the pipe to be polished is slightly larger than the polishing area, the buffer wheel 33 can slide along the first column 371, allowing the polishing belt 36 to loosen by a certain distance to fit the pipe. At the same time, the spring 372's reset function maintains the tautness of the polishing belt 36. This design avoids relying on the deformation of the polishing belt 36 itself for adaptation, effectively improving the service life of the polishing belt 36 and achieving buffer adjustment for polishing pipes of different sizes.

[0050] Furthermore, the second transmission unit 351 and the movable wheel 35 can be assembled in different states according to different transmission requirements: when polishing the round tube of the electric vehicle, the rotating shaft 31 is fixed, and the first motor 21 drives the first transmission unit 23 to drive the polishing disc 3 to rotate to complete the polishing; when polishing the square tube of the electric vehicle, one of the movable wheels 35 is removed and fixed on the second motor 14, and the second transmission unit 351 at the corresponding position is sleeved on the outside of the movable wheel 35. The second motor 14 drives the movable wheel 35 to rotate, thereby driving the polishing belt 36 on the polishing disc 3 to achieve the polishing operation of the square tube in the square polishing area.

[0051] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this invention and its equivalents, this invention also intends to include these modifications and variations.

Claims

1. An accessory polishing device for electric vehicle production, characterized by, include: A first box (1) is fixed on the second box (2), the first box (1) and the second box (2) are connected to each other, and a through first polishing port (12) is opened on the first box (1). Rotate the polishing disc (3) located inside the first housing (1), the polishing disc (3) having a second polishing port (310) for use with the first polishing port (12); Two polishing strips (36) are symmetrically arranged on the polishing disk (3), and an adjustable polishing area is formed between the two polishing strips (36); An adjustment element is movably disposed on the polishing disc (3) and used in conjunction with the polishing belt (36); The adjusting element includes a buffer wheel (33) abutting against the inner surface of the polishing belt (36) and an adjusting wheel (34) abutting against the outer surface of the polishing belt (36). The adjusting wheel (34) pushes the polishing belt (36) by changing its position. The buffer wheel (33) moves with the movement of the adjusting wheel (34). The polishing disc (3) or the polishing belt (36) is driven by a transmission element.

2. The accessory polishing apparatus for an electric vehicle production as claimed in claim 1, wherein A rotating shaft (31) is rotatably connected to the polishing disc (3), and a fixed wheel (32) is fixedly connected to the rotating shaft (31). The polishing belt (36) is tightly fitted around the fixed wheel (32).

3. The accessory polishing apparatus for an electric vehicle production as claimed in claim 1, wherein The polishing disc (3) has a first slot (37) and a first column (371) is fixed inside the first slot (37). The buffer wheel (33) is slidably connected to the first column (371). The first column (371) is covered with a spring (372). The two ends of the spring (372) abut against the buffer wheel (33) and the inner wall of the first slot (37), respectively.

4. The accessory polishing apparatus for an electric vehicle production as claimed in claim 1, wherein The polishing disc (3) has a through second slot (38), a second column (381) is fixed inside the second slot (38), a movable block (382) is slidably connected to the second column (381), and the adjusting wheel (34) is rotatably connected to the movable block (382).

5. The accessory polishing apparatus for electric vehicle production as claimed in claim 4, wherein The movable block (382) is rotatably connected to a hook (391) on the side away from the adjusting wheel (34). The polishing disc (3) is fixed with several hanging posts (39) on the side away from the adjusting wheel (34). The hook (391) is hung on one of the hanging posts (39) and locked by a locking structure.

6. The accessory polishing apparatus for electric vehicle production as claimed in claim 2, wherein The transmission element includes a first motor (21) fixed inside the second housing (2), and a transmission wheel (22) is fixed on the output end of the first motor (21). The transmission wheel (22) and the polishing disc (3) are connected by a first transmission part (23).

7. The accessory polishing apparatus for electric vehicle production as claimed in claim 2, wherein The transmission element further comprises movable wheels (35) which are detachably connected to one end of the rotating shaft (31) away from the fixed wheel (32) and connected between the movable wheels (35) on the same side through a second transmission part (351), and a second motor (14) is fixed in the first box (1) and cooperates with one of the movable wheels (35).

8. The accessory polishing apparatus for electric vehicle production as claimed in claim 1, wherein The first box (1) is further hinged with a box door (11), and the first polishing port (12) penetrates the box door (11).

9. The accessory polishing apparatus for electric vehicle production as claimed in claim 2, wherein The first box (1) is further fixed with a support (13), and the polishing disc (3) is rotationally connected to the support (13).

10. The accessory polishing apparatus for electric vehicle production as claimed in claim 2, wherein The polishing disc (3) is further provided with a locking part which cooperates with the rotating shaft (31).

Images