A polishing device for automobile parts machining
Patent Information
- Application Number
- CN202522412232.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-13
AI Technical Summary
光滑致密的表面则不易附着腐蚀物,并且很多抛光工艺还能在表面形成一层致密的钝化膜,显著提升零件的抗腐蚀能力,去除毛刺和飞边,可以避免在压装、过盈配合时产生干涉,确保零件装配到位,保证设计精度,现有的最常见的抛光设备有角磨机,现有技术中,角磨机存在一定的问题和缺陷,会对角磨机抛光造成一定的影响
1、在使用角磨机对汽车零部件进行打磨时,将角磨机套装至固定板上,使其穿过固定孔进行固定,在此过程中,滑动固定板,使其带动与之连接的限位杆在限位块上进行滑动,以此来调节固定板和转杆的长度,在调节完长度后,转动转杆,使其在扇形架的弧面上进行摆动,以此来完成弧形面的加工任务,配合滑动调节杆使其在支撑杆上滑动进行间距调节,以此来改变角磨机的加工轨迹和弧度,使其更能贴合设备的加工需求,提高了设备的调节性能,从而提高了设备的工作效率;
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Figure CN224914394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of angle grinder equipment technology, and more specifically, it relates to a polishing device for processing automotive parts. Background Technology
[0002] During the manufacturing process of automotive parts, processes such as casting, forging, stamping, welding, and machining are involved. These processes inevitably leave defects on the surface of the parts. If these surface defects are not addressed, they directly affect the functionality, reliability, and durability of the parts. Therefore, polishing, as a finishing process, exists primarily to eliminate these manufacturing defects and improve the surface integrity of the parts. Rough surfaces are more prone to accumulating moisture and corrosive substances, leading to rust. Smooth, dense surfaces are less susceptible to corrosion, and many polishing processes can also form a dense passivation film on the surface, significantly improving the parts' corrosion resistance. Removing burrs and flash can prevent interference during press-fitting and interference fits, ensuring proper assembly and maintaining design accuracy. The most common polishing equipment currently available is the angle grinder. However, existing angle grinders have certain problems and defects that can negatively impact polishing performance.
[0003] Firstly, during the polishing process of an angle grinder, automotive parts and frames have curved surfaces and internal spaces, which means that manual drilling into the processing area is required during the grinding process. This makes the processing difficult and results in a low degree of automation, thus leading to low work efficiency.
[0004] Secondly, during the grinding process, adaptive adjustments are required for different locations. In existing technologies, these adjustments are done manually, which is time-consuming and labor-intensive, resulting in low adjustment performance of the equipment and thus poor practicality.
[0005] Furthermore, the angle grinder needs to be held up for a long time during the processing, and its weight makes the processing steps cumbersome, resulting in poor processing stability and thus poor practicality. Utility Model Content
[0006] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a polishing device for processing automotive parts, so as to solve the technical problems mentioned in the background art.
[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a polishing device for processing automotive parts, comprising an angle grinder, an adjustment assembly on the angle grinder, the adjustment assembly including a fixing plate, a fixing hole in the fixing plate, the angle grinder passing through the fixing hole and fixedly fitted to the fixing plate, a limit rod on the fixing plate, the limit rod slidably connected to a limit block, one end of each limit block being connected to one end of a rotating rod, a sector frame rotatably connected to the rotating rod, a rotating shaft at one end of the sector frame, an adjustment rod rotatably connected to the rotating shaft, a support rod slidably connected to one end of the adjustment rod, a drive assembly on the fixing plate, the drive assembly including a lead screw, one end of the lead screw rotatably connected to the fixing plate, a screw hole on the rotating rod, the lead screw passing through the screw hole and threadedly connected to the rotating rod, a motor on the fixing plate, and a clamping mechanism at one end of the support rod.
[0008] This utility model is further configured such that: a driven gear is provided at the top of the rotating rod, and a driving gear is meshed with the driven gear; the bottom end of the driving gear is rotatably connected to the top of the sector frame; and a second motor is provided with the sector frame. When using an angle grinder to grind automotive parts, the angle grinder is mounted on the fixing plate and fixed by passing it through the fixing hole. During this process, the fixing plate is slid, causing the limiting rod connected to it to slide on the limiting block, thereby adjusting the length of the fixing plate and the rotating rod. After adjusting the length, the rotating rod is rotated, causing it to swing on the arc surface of the sector frame, thereby completing the processing task of the arc surface. The spacing is adjusted by sliding the adjusting rod on the support rod. The angle grinder's machining trajectory and curvature are adjusted to better suit its processing needs, improving its adjustability and efficiency. During this process, motor one rotates, driving a lead screw connected to it. The screw's threaded connection to the rotating rod adjusts the length of the rotating rod and the fixed plate. After adjustment, motor two rotates on the sector frame, driving a drive gear. The meshing of the drive and driven gears causes the rotating rod to swing on the sector frame, enhancing the automation level of the equipment and improving its practicality.
[0009] This utility model is further configured such that: an adjusting gear is provided on the rotating shaft, and a positioning gear is meshed with the adjusting gear; one end of the positioning gear is rotatably connected to the adjusting rod; a positioning plate is provided at the other end of the positioning gear and the adjusting gear; and a motor is provided on the positioning plate. When the angle of the sector frame is rotated, the motor is started to rotate on the positioning plate, which drives the positioning gear connected to it to rotate accordingly. Through the meshing relationship between the positioning gear and the adjusting gear, the rotating shaft is driven to rotate, thereby adjusting the longitudinal angle of the angle grinder. This improves the automation level of equipment adjustment and thus enhances the practicality of the equipment.
[0010] This utility model is further configured such that: the clamping mechanism includes a connecting plate, one end of the connecting plate is connected to one end of the support rod, the connecting plate is provided with a connecting seat, the connecting seat is provided with a connecting shaft, the connecting shaft is provided with an adjusting frame, the adjusting frame is provided with a crank rod, the adjusting frame is provided with a knob one, the crank rod is provided with a connecting block, the connecting block is rotatably connected to a magnet, and the connecting block is provided with a knob two. When clamping the angle grinder, rotating the adjusting frame causes the connecting shaft connected to it to rotate on the connecting seat, adjusting the angle by rotation, so that the magnet can clamp more effectively. After adjustment, rotating the crank rod is used for further adjustment. Rotating knob one tightens the screw on the adjusting frame to fix the crank rod. Rotating the magnet fixes it on the connecting block. Rotating knob two tightens the magnet to fix it. Through magnetic attraction, the angle grinder is driven to polish along a fixed angle, reducing manual operation, improving the processing stability of the equipment, and thus improving the practicality of the equipment.
[0011] This utility model is further configured such that: a sliding groove is provided on the connecting plate, a slider is slidably connected to the sliding groove, a threaded sleeve is rotatably connected to the slider, and a bolt is rotatably connected to the threaded sleeve; an elongated groove is provided inside the adjusting frame, a pin is provided inside the elongated groove, and a threaded hole is provided on the pin; the bolt passes through the threaded hole and is threadedly connected to the pin; when adjusting the adjusting frame, the bolt is rotated to make it slide along the threaded hole, thereby changing the distance between the bolt and the pin, and cooperating with the sliding slider to drive the threaded sleeve and the bolt to rotate, so that they form a stable triangular structure with the adjusting frame, improving the stability of the equipment adjustment, thereby improving the practicality of the equipment.
[0012] The present invention is further configured such that: the fixing plate is provided with a connecting hole, the connecting hole is threaded with a screw, and an arc-shaped block is rotatably connected to the screw. When fixing the angle grinder, the screw is rotated to make it rotate threaded in the connecting hole, which drives the arc-shaped block connected to it to lock the angle grinder in place, thereby improving the stability of the equipment clamping and thus improving the practicality of the equipment.
[0013] This utility model is further configured such that: a slot is provided through the adjusting rod, a positioning buckle is provided through the slot on the support rod, and an electric push rod is provided at one end of the positioning buckle. The base end of the electric push rod is connected to one end of the connecting plate. When the adjusting rod is slid, the output end of the electric push rod is activated to extend and slide, which drives the positioning buckle connected to it to slide accordingly. The positioning buckle is connected to the support rod, thereby driving the support rod and the adjusting rod to slide, which improves the automation level of the equipment adjustment and thus improves the practicality of the equipment.
[0014] (III) Beneficial Effects Compared with the prior art, the present invention has the following beneficial effects: 1. When using an angle grinder to grind automotive parts, mount the angle grinder onto the mounting plate and secure it by passing it through the mounting holes. During this process, slide the mounting plate to move the connected limit rod on the limit block, thereby adjusting the length of the mounting plate and the rotating rod. After adjusting the length, rotate the rotating rod to swing it on the arc surface of the fan-shaped frame to complete the processing task of the arc surface. Use the sliding adjustment rod to slide it on the support rod to adjust the spacing, thereby changing the processing trajectory and curvature of the angle grinder, making it more suitable for the processing needs of the equipment, improving the adjustment performance of the equipment, and thus improving the working efficiency of the equipment. 2. Start motor one to rotate, which drives the lead screw connected to it to rotate. Through the threaded connection between the lead screw and the screw hole on the rotating rod, the length of the rotating rod and the fixed plate is adjusted. After the length adjustment is completed, start motor two to rotate on the sector frame. The rotation drives the drive gear connected to it to rotate. Through the meshing relationship between the drive gear and the driven gear, the rotating rod swings on the sector frame, thereby improving the automation level of the equipment drive and thus improving the practicality of the equipment. 3. When clamping the angle grinder, rotate the adjusting bracket to make the connecting shaft rotate on the connecting seat. Adjust the angle by rotating the bracket to make the magnetic clamping more effective. After adjustment, rotate the crank rod to adjust it. Tighten the first knob on the adjusting bracket to fix the crank rod. Then rotate the magnetic clamp to fix it on the connecting block. Tighten the second knob to fix the magnetic clamp. The magnetic attraction allows the angle grinder to drive and polish along the fixed angle, reducing manual operation, improving the processing stability of the equipment, and thus improving the practicality of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a polishing device for processing automotive parts according to the present invention; Figure 2 This is an exploded structural diagram of a polishing device for processing automotive parts according to the present invention; Figure 3 This is a schematic diagram of the connection structure of the crank and the adjusting frame of a polishing device for processing automotive parts according to this utility model; Figure 4 This is a schematic diagram of the connection structure of the adjusting rod and the support rod of a polishing device for processing automotive parts according to this utility model; Figure 5 This is a schematic diagram of the connection structure between the angle grinder and the fixing plate of a polishing device for processing automotive parts according to this utility model.
[0016] In the diagram: 1. Angle grinder; 2. Fixing plate; 3. Fixing hole; 4. Limiting rod; 5. Limiting block; 6. Sector frame; 7. Rotating shaft; 8. Adjusting rod; 9. Support rod; 10. Lead screw; 11. Screw hole; 12. Motor 1; 13. Driven gear; 14. Drive gear; 15. Motor 2; 16. Adjusting gear; 17. Positioning gear; 18. Positioning plate; 19. Motor 3; 20. Connecting plate; 21. Connecting... 21. Connecting bracket; 22. Connecting shaft; 23. Adjusting bracket; 24. Crank rod; 25. Knob 1; 26. Connecting block; 27. Magnetic attraction; 28. Knob 2; 29. Slide groove; 30. Slider; 31. Screw sleeve; 32. Bolt; 33. Long groove; 34. Pin; 35. Threaded hole; 36. Connecting hole; 37. Screw; 38. Arc block; 39. Slot; 40. Positioning buckle; 41. Electric push rod; 42. Rotating rod. Detailed Implementation
[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0020] Please see Figure 1-5A polishing device for processing automotive parts includes an angle grinder 1. The angle grinder 1 is equipped with an adjustment assembly, which includes a fixed plate 2. The fixed plate 2 has a fixing hole 3. The angle grinder 1 passes through the fixing hole 3 and is fixedly fitted to the fixed plate 2. A limit rod 4 is provided on the fixed plate 2. The limit rod 4 is slidably connected to a limit block 5. One end of each limit block 5 is connected to one end of a rotating rod 42. A sector-shaped frame 6 is rotatably connected to the rotating rod 42. A rotating shaft 7 is provided at one end of the sector-shaped frame 6. An adjustment rod 8 is rotatably connected to the rotating shaft 7. A support rod 9 is slidably connected to one end of the adjustment rod 8. A drive assembly is provided on the fixed plate 2. The drive assembly includes a lead screw 10. One end of the lead screw 10 is rotatably connected to the fixed plate 2. A screw hole 11 is provided on the rotating rod 42. The lead screw 10 passes through the screw hole 11 and is threadedly connected to the rotating rod 42. A motor 12 is provided on the fixed plate 2. A clamping mechanism is provided at one end of the support rod 9.
[0021] In the embodiments of this application: a driven gear 13 is provided at the top of the rotating rod 42, and a driving gear 14 is meshed with the driven gear 13. The bottom end of the driving gear 14 is rotatably connected to the top end of the sector frame 6. The sector frame 6 is equipped with a motor 15. When using the angle grinder 1 to grind automotive parts, the angle grinder 1 is mounted on the fixing plate 2 and fixed by passing it through the fixing hole 3. During this process, the fixing plate 2 is slid, causing the limiting rod 4 connected to it to slide on the limiting block 5, thereby adjusting the length of the fixing plate 2 and the rotating rod 42. After adjusting the length, the rotating rod 42 is rotated, causing it to swing on the arc surface of the sector frame 6, thereby completing the processing of the arc surface. The angle grinder 1 is adjusted by sliding the sliding adjustment rod 8 on the support rod 9 to change the processing trajectory and curvature of the angle grinder 1, so that it can better meet the processing requirements of the equipment. During this process, the motor 12 is started to rotate, which drives the lead screw 10 connected to it to rotate. Through the threaded connection between the lead screw 10 and the screw hole 11 on the rotating rod 42, the length of the rotating rod 42 and the fixed plate 2 is adjusted. After the length adjustment is completed, the motor 2 is started to rotate on the sector frame 6. The rotation drives the drive gear 14 connected to it to rotate. Through the meshing relationship between the drive gear 14 and the driven gear 13, the rotating rod 42 is driven to swing on the sector frame 6.
[0022] More specifically: An adjusting gear 16 is provided on the rotating shaft 7, and a positioning gear 17 is meshed with the adjusting gear 16. One end of the positioning gear 17 is rotatably connected to the adjusting rod 8. A positioning plate 18 is provided at the other end of the positioning gear 17 and the adjusting gear 16. A motor 19 is provided on the positioning plate 18. When the angle of the sector frame 6 is rotated, the motor 19 is started to rotate on the positioning plate 18. The motor 19 drives the positioning gear 17 connected to it to rotate accordingly. Through the meshing relationship between the positioning gear 17 and the adjusting gear 16, the rotating shaft 7 is driven to rotate, thereby adjusting the longitudinal angle of the angle grinder 1.
[0023] More specifically: the clamping mechanism includes a connecting plate 20, one end of which is connected to one end of a support rod 9. A connecting seat 21 is provided on the connecting plate 20, a connecting shaft 22 is provided on the connecting seat 21, an adjusting frame 23 is provided on the connecting shaft 22, a crank rod 24 is provided on the adjusting frame 23, a knob 25 is provided on the adjusting frame 23, a connecting block 26 is provided on the crank rod 24, a magnetic attraction 27 is rotatably connected to the connecting block 26, and a knob 28 is provided on the connecting block 26. When clamping at the angle grinder 1 position... Rotate the adjusting bracket 23, causing the connecting shaft 22 connected to it to rotate on the connecting seat 21. Adjust the angle by rotating the bracket, so that the magnetic suction 27 can be clamped more effectively. After adjustment, rotate the crank 24 to adjust it. Turn the first knob 25 to tighten it on the adjusting bracket 23 to fix the crank 24. Rotate the magnetic suction 27 to fix it on the connecting block 26. Turn the second knob 28 to tighten it to fix the magnetic suction 27. The magnetic suction 27 attracts the angle grinder 1 to drive polishing along the fixed angle.
[0024] More specifically: the connecting plate 20 is provided with a sliding groove 29, a slider 30 is slidably connected to the sliding groove 29, a threaded sleeve 31 is rotatably connected to the slider 30, and a bolt 32 is rotatably connected to the threaded sleeve 31. The adjusting frame 23 is provided with a long groove 33, a pin 34 is provided in the long groove 33, and a threaded hole 35 is provided on the pin 34. The bolt 32 passes through the threaded hole 35 and is threadedly connected to the pin 34. When adjusting the adjusting frame 23, the bolt 32 is rotated to make it slide along the threaded hole 35. By sliding, the distance between the bolt 32 and the pin 34 is changed. In conjunction with the sliding slider 30, it drives the threaded sleeve 31 and the bolt 32 to rotate, so that they form a stable triangular structure with the adjusting frame 23.
[0025] More specifically: the fixing plate 2 is provided with a connecting hole 36, the connecting hole 36 is threaded with a screw 37, and an arc-shaped block 38 is rotatably connected to the screw 37. When fixing the angle grinder 1, the screw 37 is rotated to make it rotate threaded in the connecting hole 36, which drives the arc-shaped block 38 rotatably connected to it to fix the angle grinder 1 in place.
[0026] More specifically: a slot 39 is provided through the adjusting rod 8, and a positioning buckle 40 is provided through the slot 39 of the support rod 9. An electric push rod 41 is provided at one end of the positioning buckle 40. The base end of the electric push rod 41 is connected to one end of the connecting plate 20. When the adjusting rod 8 is slid, the output end of the electric push rod 41 is activated to extend and slide. The sliding causes the positioning buckle 40 connected to it to slide as well. The positioning buckle 40 is connected to the support rod 9, thereby causing the support rod 9 and the adjusting rod 8 to slide.
[0027] In summary, when using angle grinder 1 to grind automotive parts, angle grinder 1 is mounted on fixed plate 2 and fixed by passing it through fixed hole 3. During this process, fixed plate 2 is slid, causing the connected limiting rod 4 to slide on limiting block 5, thereby adjusting the length of fixed plate 2 and rotating rod 42. After adjusting the length, rotating rod 42 is rotated, causing it to swing on the arc surface of sector frame 6, thus completing the processing task of arc surface. When rotating sector frame 6, motor 319 is started to rotate on positioning plate 18, and motor 319 drives the connected positioning teeth. Wheel 17 rotates accordingly, driving the rotating shaft 7 to rotate through the meshing relationship between the positioning gear 17 and the adjusting gear 16. This adjusts the longitudinal angle of the angle grinder 1. The sliding adjusting rod 8 slides on the support rod 9 to adjust the spacing, thereby changing the processing trajectory and curvature of the angle grinder 1 to better meet the processing requirements of the equipment. During this process, motor 12 is started and rotates, driving the connected lead screw 10 to rotate. Through the threaded connection between the lead screw 10 and the screw hole 11 on the rotating rod 42, the length of the rotating rod 42 and the fixing plate 2 is adjusted. After length adjustment, start motor 15 to rotate on sector frame 6. This rotation drives drive gear 14 to rotate, and through the meshing of drive gear 14 and driven gear 13, rotates rod 42 on sector frame 6. When clamping at angle grinder 1, rotate adjustment frame 23, causing connecting shaft 22 to rotate on connecting seat 21. While adjusting adjustment frame 23, rotate bolt 32 to slide along threaded hole 35, changing the distance between bolt 32 and pin 34. The sliding block 30 is used to drive the screw sleeve 31 and bolt 32 to rotate, forming a stable triangular structure with the adjusting frame 23. The angle is adjusted by rotation, so that the magnetic suction 27 can be clamped more effectively. After adjustment, the crank rod 24 is rotated to adjust it. The first knob 25 is rotated to tighten the thread on the adjusting frame 23 to fix the crank rod 24. The magnetic suction 27 is rotated to fix it on the connecting block 26. The second knob 28 is rotated to tighten the magnetic suction 27 to fix it. The magnetic suction 27 attracts the angle grinder 1 to drive polishing along a fixed angle.
[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A polishing apparatus for processing automotive parts, comprising an angle grinder (1), wherein the angle grinder (1) is provided with an adjustment component, characterized in that: The adjustment assembly includes a fixed plate (2) with a fixed hole (3) inside. The angle grinder (1) passes through the fixed hole (3) and is fixedly fitted onto the fixed plate (2). A limit rod (4) is provided on the fixed plate (2), and the limit rod (4) is slidably connected to a limit block (5). One end of each limit block (5) is connected to one end of a rotating rod (42). A sector frame (6) is rotatably connected to the rotating rod (42), and a rotating shaft (7) is provided at one end of the sector frame (6). The rotating shaft (7) rotates... An adjusting rod (8) is dynamically connected, and a support rod (9) is slidably connected to one end of the adjusting rod (8). A driving assembly is provided on the fixed plate (2), and the driving assembly includes a lead screw (10). One end of the lead screw (10) is rotatably connected to the fixed plate (2). A screw hole (11) is provided on the rotating rod (42). The lead screw (10) passes through the screw hole (11) and is threadedly connected to the rotating rod (42). A motor (12) is provided on the fixed plate (2). A clamping mechanism is provided at one end of the support rod (9).
2. The polishing apparatus for processing automotive parts according to claim 1, characterized in that: The top of the rotating rod (42) is provided with a driven gear (13), which meshes with a driving gear (14). The bottom of the driving gear (14) is rotatably connected to the top of the sector frame (6), and the sector frame (6) is equipped with a second motor (15).
3. The polishing apparatus for processing automotive parts according to claim 2, characterized in that: An adjusting gear (16) is provided on the rotating shaft (7), and a positioning gear (17) is meshed with the adjusting gear (16). One end of the positioning gear (17) is rotatably connected to the adjusting rod (8). A positioning plate (18) is provided at the other end of the positioning gear (17) and the adjusting gear (16). A motor (19) is provided on the positioning plate (18).
4. The polishing apparatus for processing automotive parts according to claim 1, characterized in that: The clamping mechanism includes a connecting plate (20), one end of which is connected to one end of a support rod (9). A connecting seat (21) is provided on the connecting plate (20), a connecting shaft (22) is provided on the connecting seat (21), an adjusting frame (23) is provided on the connecting shaft (22), a crank rod (24) is provided on the adjusting frame (23), a knob one (25) is provided on the adjusting frame (23), a connecting block (26) is provided on the crank rod (24), a magnetic suction (27) is rotatably connected to the connecting block (26), and a knob two (28) is provided on the connecting block (26).
5. The polishing apparatus for processing automotive parts according to claim 4, characterized in that: The connecting plate (20) is provided with a sliding groove (29), a slider (30) is slidably connected to the sliding groove (29), a threaded sleeve (31) is rotatably connected to the slider (30), a bolt (32) is rotatably connected to the threaded sleeve (31), an elongated groove (33) is provided in the adjusting frame (23), a pin (34) is provided in the elongated groove (33), a threaded hole (35) is provided on the pin (34), and the bolt (32) passes through the threaded hole (35) and the pin (34) and is threadedly connected.
6. A polishing apparatus for processing automotive parts according to any one of claims 1-5, characterized in that: The fixing plate (2) is provided with a connecting hole (36), and a screw (37) is threadedly connected to the connecting hole (36). An arc-shaped block (38) is rotatably connected to the screw (37).
7. A polishing apparatus for processing automotive parts according to any one of claims 2 or 4, characterized in that: The adjusting rod (8) has a slot (39) through it, and the support rod (9) has a positioning buckle (40) through the slot (39). One end of the positioning buckle (40) is provided with an electric push rod (41), and the base end of the electric push rod (41) is connected to one end of the connecting plate (20).