Wheel hub surface machining tool

Abstract

The invention relates to the technical field of electric vehicle hub machining, in particular to a hub surface machining tool which comprises a bottom support, two rotary working platforms are fixedly connected to the top of the bottom support, limiting rods penetrating through the rotary working platforms are arranged at the tops of the rotary working platforms, and adjustable polishing assemblies are installed outside the limiting rods; the adjustable polishing assembly comprises a base arranged outside the limiting rod in a sleeving mode, the base is sleeved with a plurality of annular polishing brush assemblies, the interior of the base is hollow, one side of the base is provided with a bottom fan-shaped notch and a top fan-shaped notch, and the side, away from the bottom fan-shaped notch, of the base is fixedly connected with a limiting transverse plate located in the middle height of the base. The technical problems that due to the fact that the abrasion degrees of different areas of a polishing wheel of existing hub polishing equipment are uneven, the polishing wheel needs to be replaced when the abrasion degree of most areas is small, the workload of replacing the polishing wheel is increased, and the time of a polishing wheel hub is occupied are solved.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicle wheel hub processing, in particular to a surface processing tool for a wheel hub. Background Art

[0002] During the production and processing of electric vehicle wheel hubs, surface processing tools are required to polish the outer surface of the wheel hub. Common polishing equipment includes vibration polishing machines and CNC polishing machine tools. After searching, the Chinese invention patent with application number CN202211661832.9 discloses a surface processing tool for an electric vehicle wheel hub. Through the setting and use of a chip removal mechanism, the metal chips generated during polishing and grinding in the chip collecting barrel cover can be sucked into the chip collecting barrel together with the air.

[0003] The above-mentioned device has the same characteristics as the common polishing wheel, that is, the usage area of ​​the polishing wheel is uneven. A smaller area of ​​the polishing wheel is used to polish the wheel hub for a long time. Even if the working area of ​​the polishing wheel is gradually changed after moving relative to the wheel hub, it is a process of gradually transferring from the commonly used area of ​​the polishing wheel to other areas. When the next wheel hub is replaced for polishing, this process is repeated. There is still a situation where the smaller area of ​​the polishing wheel has the greatest degree of wear, while other areas have less wear. When most areas of the polishing wheel have less wear, but only the commonly used areas have greater wear, it needs to be replaced, which increases the frequency of polishing wheel replacement. Moreover, replacing the polishing wheel not only increases the workload, but also takes up time for polishing the wheel hub. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a surface processing tool for a wheel hub, which solves the technical problem that different areas of the polishing wheel of the existing wheel hub polishing equipment have uneven wear, resulting in the need to replace the polishing wheel when the wear degree of most areas is relatively small, which not only increases the workload of replacing the polishing wheel, but also takes up time for polishing the wheel hub.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a wheel hub surface processing tool, comprising a bottom bracket, the top of the bottom bracket is fixedly connected to two rotating working platforms, the top of the rotating working platform is provided with a limit rod penetrating the rotating working platform, and the outside of the limit rod is installed with an adjustable polishing component;

[0006] The adjustable polishing assembly includes a base mounted on the outside of a limiting rod, a plurality of annular polishing brush assemblies are mounted on the outside of the base, the interior of the base is hollow, a bottom fan-shaped notch and a top fan-shaped notch are respectively provided on one side of the base, a limiting cross plate at the middle height of the base is fixedly connected to the side of the base away from the bottom fan-shaped notch, a cylinder 1 for pushing the annular polishing brush assembly at the bottom fan-shaped notch into the interior of the base is installed on the top of the bottom bracket, and a cylinder 2 for pushing the annular polishing brush assembly inside the base to rise is fixedly connected to the base of the rotating working platform.

[0007] Furthermore, the annular polishing brush assembly includes an elastic ring sleeved on the outside of the base, a notch is provided on one side of the elastic ring, the length of the elastic ring is smaller than the length of the bottom fan-shaped notch and the top fan-shaped notch, the length of the notch is smaller than the length of the limiting horizontal plate, a plurality of rings are sleeved on the outside of the elastic ring, a protrusion is fixedly connected to the side of the ring away from the base, a fan-shaped block is fixedly connected to the side of the protrusion away from the ring, and a polishing brush is fixedly connected to the side of the fan-shaped block away from the protrusion.

[0008] Furthermore, the collar is slidably connected to the elastic circular ring, a plurality of cross bars are fixedly connected to the outer side of the collar, and a plurality of longitudinal anti-slip strips are fixedly connected to the inner wall and the outer side of the base.

[0009] Furthermore, an air passage is opened inside the limit rod, air vents are opened on the inner wall of the base and the outer side of the limit rod, an exhaust hole is opened on the outer side of the base, a filter box connected to the limit rod is fixedly connected to the top of the bottom bracket, an exhaust pipe is connected to one side of the filter box, and a scraper assembly for scraping metal chips on the surface of the polishing brush is provided on the inner wall of the base.

[0010] Furthermore, the scraper assembly comprises a rubber ring sleeved on the inner wall of the base, a circular hole corresponding to the air hole is opened on the outer side of the rubber ring, and a plurality of convex rings are fixedly connected to the outer side of the rubber ring.

[0011] Furthermore, the top of the bottom bracket is fixedly connected with a support column corresponding to cylinder one, cylinder one is installed on the top of the support column, the output end of cylinder one is fixedly connected with a pushing column, and the output end of cylinder two is fixedly connected with a pushing plate.

[0012] Furthermore, an external thread is provided on the top of the limiting rod, and a nut for fixing the base is installed on the outside of the limiting rod.

[0013] Furthermore, an elastic arc plate fixedly connected to the base is provided above the top fan-shaped notch, and an arc block with an arc-shaped bottom is fixedly connected to a side of the inner wall of the base away from the elastic arc plate.

[0014] Furthermore, a polishing table is fixedly connected to the top of the bottom bracket, and a clamp is installed on the top of the polishing table.

[0015] By means of the above technical solution, the present invention provides a surface processing tool for a wheel hub, which has at least the following beneficial effects:

[0016] 1. The adjustable polishing assembly provided in the present invention can flexibly adjust the height of the bristles at different layers of the polishing brush after each polishing of a wheel hub, so that the bristles at different heights on the outside of the polishing brush circulate and contact with the wheel hub for polishing. Compared with the situation in which the polishing brush is raised and lowered so that its working area gradually moves from one place to the periphery, the wear of the polishing brush will not gradually decrease from the most serious place to the periphery, so that the wear degree of different areas of the polishing brush is more uniform, and the possibility of replacing the polishing wheel when the wear degree of most areas of the polishing brush is relatively small is reduced, the workload of replacing the polishing wheel is reduced, and the time of the polishing wheel hub occupied by replacing the polishing wheel is also reduced.

[0017] 2. The filter box and the exhaust pipe provided in the present invention can directly clean the metal chips on the wheel hub and the surface of the polishing brush near the wheel hub, reduce the range of diffusion of the metal chips thrown out by the polishing wheel, and at the same time move the polishing brush to the vicinity of the air vents with larger air flow, thereby increasing the air flow intensity for cleaning the metal chips attached to the surface of the polishing brush, thereby improving the cleaning effect of the metal chips attached to the surface of the polishing wheel.

[0018] 3. The scraper assembly provided in the present invention can scrape the metal chips attached to the surface of the annular polishing brush assembly during its movement. At the same time, since the location where the metal chips are scraped is close to the air vents, it is easier to directly suck away the metal chips scraped off the polishing brush, thereby improving the cleaning ability of the metal chips attached to the deeper part of the polishing brush.

[0019] 4. The present invention provides a cross bar and annular polishing brush assembly, which can not only create a gap at a certain angle between the fan-shaped block and polishing brush at the bottom and the fan-shaped block and polishing brush above them, but also lower the cylinder to push the annular polishing brush assembly at the bottom to squeeze the annular polishing brush assembly above it, and can also make the bottom protrusion, fan-shaped block and polishing brush all in a downwardly inclined state, so that the cylinder drives the pusher column to move and directly contact the protrusion and fan-shaped block without being blocked by the polishing brush outside the fan-shaped block, thereby reducing the degree of extrusion and damage to the bottom polishing brush and the polishing brush above it when adjusting the height of the annular polishing brush assembly, and can maintain the integrity of the polishing brush shape to the greatest extent, reducing the possibility of the polishing brush being squeezed and bent, resulting in a decrease in the polishing effect of the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention with the base removed as a whole;

[0023] Figure 3 It is a schematic diagram of the structure of the base and the bottom bracket of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the base and the annular polishing brush assembly of the present invention;

[0025] Figure 5 It is a partial cutaway view of the base of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of multiple annular polishing brush assemblies of the present invention;

[0027] Figure 7 It is a schematic structural diagram of a single annular polishing brush assembly of the present invention.

[0028] In the figure: 1. bottom bracket; 2. rotating working platform; 3. limiting rod; 4. adjustable polishing assembly; 41. base; 42. annular polishing brush assembly; 421. elastic ring; 422. collar; 423. convex block; 424. fan-shaped block; 425. polishing brush; 43. limiting horizontal plate; 44. cylinder one; 45. cylinder two; 5. cross bar; 6. longitudinal anti-skid strip; 7. exhaust pipe; 8. scraper assembly; 81. rubber ring; 82. convex ring; 9. support column; 10. push column; 11. push plate; 12. nut; 13. elastic arc plate; 14. arc block; 15. polishing table; 16. fixture; 17. filter box. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] In order to make the wear of different areas of the polishing wheel more uniform, and to prevent the polishing wheel from needing to be replaced due to severe wear in a small area, which will increase the replacement workload and take up the time for polishing the wheel hub, please refer to Figure 1-Figure 4The present embodiment proposes a surface processing tool for a wheel hub, comprising a bottom bracket 1, two rotating working platforms 2 are fixedly connected to the top of the bottom bracket 1, a limiting rod 3 penetrating the rotating working platform 2 is provided on the top of the rotating working platform 2, an adjustable polishing assembly 4 is installed on the outside of the limiting rod 3, the adjustable polishing assembly 4 comprises a base 41 sleeved on the outside of the limiting rod 3, a plurality of annular polishing brush assemblies 42 are sleeved on the outside of the base 41, the interior of the base 41 is hollow, a bottom fan-shaped notch and a top fan-shaped notch are respectively opened on one side of the base 41, and a base 41 is fixedly connected to a side away from the bottom fan-shaped notch. A limiting horizontal plate 43 of the middle height, a cylinder 1 44 is installed on the top of the bottom bracket 1 for pushing the annular polishing brush assembly 42 at the bottom fan-shaped notch into the inside of the base 41, and a cylinder 2 45 is fixedly connected to the base of the rotating work platform 2 for pushing the annular polishing brush assembly 42 inside the base 41 to rise. When in use, the entire device can be installed in the inner cavity of a CNC machine tool, or the entire device can be installed on an operating table, the base 41 with the annular polishing brush assembly 42 is installed on the limiting rod 3 and the rotating work platform 2 and fixed, and the wheel hub to be polished is placed between the two annular polishing brush assemblies 42.

[0032] The rotating working platform 2 drives the base 41 and the annular polishing brush assembly 42 to rotate. The annular polishing brush assembly 42 on the base 41 that is facing the wheel hub rubs against the wheel hub to polish it until the polishing is completed. The polished wheel hub is removed and replaced with another wheel hub that needs to be polished. The positions of the annular polishing brush assemblies 42 are changed during the process of replacing the wheel hub. The specific process is: the cylinder 1 44 pushes an annular polishing brush assembly 42 at the bottom close to the bottom fan-shaped notch, and multiple cylinders 1 44 squeeze the annular polishing brush assembly 42 at the same time and push it from the bottom fan-shaped notch to the inside of the base 41, and then the cylinder 1 44 returns to the starting point, and the other annular polishing brush assemblies 42 outside the base 41 fall down one layer, and the cylinder 2 45 pushes the annular polishing brush assembly 42 entering the base 41 to rise to the highest point, and then expands to the outside of the base 41 under its own elastic action, and then The cylinder 2 45 also returns to the starting point, completing the purpose of moving the annular polishing brush assembly 42 at the bottom of the polishing brush to the highest point, while the annular polishing brush assemblies 42 at other positions are lowered by one layer, and then repeating the above process, the polishing brush continues to polish the placed wheel hub, and can flexibly adjust the height of the bristles at different layers of the polishing brush after each polishing of a wheel hub is completed, so that the bristles at different heights on the outside of the polishing brush circulate and contact the wheel hub for polishing. Compared with the situation where the polishing brush is lifted and lowered to make its working area gradually move from one place to the periphery, the wear of the polishing brush will not gradually decrease from the most serious place to the periphery, so that the wear degree of different areas of the polishing brush is more uniform, reducing the possibility of replacing the polishing wheel when the wear degree of most areas of the polishing brush is small, reducing the workload of replacing the polishing wheel, and also reducing the time of the polishing wheel hub occupied by replacing the polishing wheel.

[0033] In order to better promote the movement of the annular polishing brush assembly 42, refer to Figure 1 and Figure 2 The top of the bottom bracket 1 is fixedly connected with a support column 9 corresponding to the cylinder 1 44, and the cylinder 1 44 is installed on the top of the support column 9. The output end of the cylinder 1 44 is fixedly connected with a push column 10, and the output end of the cylinder 2 45 is fixedly connected with a push plate 11. The top of the limit rod 3 is provided with an external thread, and the outside of the limit rod 3 is provided with a nut 12 for fixing the base 41. When in use, the base 41 with the annular polishing brush assembly 42 installed is sleeved on the limit rod 3, and then the nut 12 is used to rotate along the external thread on the top of the limit rod 3 until the nut 12 fixes the base 41 on the rotating working platform 2. When the polishing wheel needs to be replaced, only the nut 12 on the limit rod 3 needs to be removed, and then the base 41 on the limit rod 3 needs to be removed, and the new base 41 with the annular polishing brush assembly 42 is installed on the limit rod 3 and fixed, and the polishing wheel replacement process is completed.

[0034] When the height of the annular polishing brush assembly 42 on the polishing wheel needs to be adjusted, after the rotating work platform 2 stops, the cylinder 1 44 is started, and the cylinder 1 44 drives the push column 10 to gradually approach the annular polishing brush assembly 42. The push columns 10 in multiple directions outside the base 41 squeeze the annular polishing brush assembly 42 at the same time, and squeeze the elastic annular polishing brush assembly 42 into the base 41. Then, the cylinder 1 44 drives the push column 10 back to the starting point, and the other annular polishing brush assemblies 42 outside the base 41 fall down a layer of height. The push plate 11 pushes the annular polishing brush assembly 42 inside the base 41 to rise until the annular polishing brush assembly 42 rises to the highest point of the base 41, and then expands from the top fan-shaped notch to the outside of the base 41 under its own elasticity, and moves from the bottom of the base 41 to the top of the base 41, and then the cylinder 45 drives the push plate 11 back to the starting point. The push column 10 and the push plate 11 make the process of pushing the annular polishing brush assembly 42 more convenient.

[0035] In order to better limit the position of the movable annular polishing brush assembly 42 and improve the stability of the annular polishing brush assembly 42 during the polishing process of the wheel hub, refer to Figure 3, an elastic arc plate 13 fixedly connected to the base 41 is provided above the top fan-shaped notch, and an arc block 14 with an arc surface at the bottom is fixedly connected to the inner wall of the base 41 away from the elastic arc plate 13. When in use, the elastic arc plate 13, due to its own elasticity, presses the annular polishing brush assembly 42 below at one end downward, and uses the squeezing force to improve the position stability of the annular polishing brush assembly 42 outside the base 41, and reduces the possibility of the annular polishing brush assembly 42 shaking up and down during the polishing of the wheel hub. When the cylinder 2 45 pushes the annular polishing brush assembly 42 inside the base 41 to rise When reaching the highest point, the annular polishing brush assembly 42 inside the base 41 moves along the arc surface at the bottom of the arc block 14 to one side of the arc block 14. Due to the limitation of the arc block 14, the elastic annular polishing brush assembly 42 is squeezed through the top fan-shaped notch and moves to the outside of the base 41. Both ends of the annular polishing brush assembly 42 slide along the arc surface outside the arc block 14 to the outside of the base 41, so that the annular polishing brush assembly 42 that is raised to the highest point inside the base 41 can be better moved to the outside of the base 41, reducing the possibility of the annular polishing brush assembly 42 being stuck inside the base 41.

[0036] To facilitate the fixing of the wheel hub for polishing, refer to Figure 1 and Figure 2 A polishing table 15 is fixedly connected to the top of the bottom bracket 1, and a clamp 16 is installed on the top of the polishing table 15. When in use, the wheel hub to be polished is placed on the polishing table 15, and the clamp 16 is moved to squeeze and fix the wheel hub on the polishing table 15 to complete the fixation of the wheel hub. When the wheel hub polishing is completed, it is only necessary to move the clamp 16 away from the wheel hub on the polishing table 15, and then replace the next wheel hub to be polished on the polishing table 15 for fixation.

[0037] Embodiment 2

[0038] The existing wheel hubs produce debris during the polishing process. The debris is thrown out by the polishing wheel and then sucked away by the airflow. Not only will the metal chips spread into a larger space, but the metal chips attached to the surface of the polishing wheel are also difficult to clean. In order to solve this problem, Figure 1-Figure 4On the basis of the first embodiment, an air passage is provided inside the limit rod 3, air vents are provided on the inner wall of the base 41 and the outer side of the limit rod 3, and an air extraction hole is provided on the outer side of the base 41. A filter box 17 connected to the limit rod 3 is fixedly connected to the top of the bottom bracket 1, and one side of the filter box 17 is connected to an air extraction pipe 7. A scraper assembly 8 for scraping metal chips on the surface of the polishing brush 425 is provided on the inner wall of the base 41. When in use, the air extraction pipe 7 is connected to the gas pipeline to first draw the air outside the base 41 into the base 41, and then draw it out after passing through the limit rod 3 and the filter box 17. In the process of polishing the wheel hub by the polishing brush 425, the metal chips on the surface of the wheel hub are drawn into the base 41 by the air extraction holes outside the base 41, and the debris on the surface of the wheel hub and the polishing brush 425 is cleaned directly next to the wheel hub, reducing the range of diffusion of metal chips after splashing. The metal chips are intercepted inside the filter box 17, and the air is discharged from the air extraction pipe 7.

[0039] At the same time, since the annular polishing brush assembly 42 will gradually descend to the bottom of the base 41 and then be pushed into the inside of the base 41, and then move along the inside of the base 41 to the top of the base 41 and continue to circulate, the polishing brush 425 can move to the inside of the base 41 and get close to the air vent, and use the larger airflow at the air vent to suck away the metal chips attached to the surface of the polishing brush. The metal chips on the surface of the wheel hub and the polishing brush 425 can be cleaned directly near the wheel hub, reducing the range of metal chips being thrown out and diffused by the polishing wheel. At the same time, the polishing brush 425 is moved to the vicinity of the air vent with larger airflow, thereby increasing the airflow intensity for cleaning the metal chips attached to the surface of the polishing brush 425, thereby improving the cleaning effect of the metal chips attached to the surface of the polishing wheel.

[0040] Embodiment 3

[0041] In order to further improve the cleaning effect of metal chips attached to the surface of the polishing wheel, refer to Figure 1-Figure 5On the basis of the first embodiment, the scraper assembly 8 includes a rubber ring 81 sleeved on the inner wall of the base 41, and a circular hole corresponding to the air hole is opened on the outer side of the rubber ring 81. A plurality of convex rings 82 are fixedly connected to the outer side of the rubber ring 81. When in use, the cylinder 45 pushes the annular polishing brush assembly 42 to rise inside the base 41. In this process, the annular polishing brush assembly 42 rubs against the rubber ring 81, and the metal chips attached to the surface will be scraped off. The annular polishing brush assembly 42 will also generate vibration when passing through the convex ring 82. The metal chips attached to the surface of the polishing brush 425 are shaken off by the movement. The metal chips scraped off the outside of the rubber ring 81 are more easily sucked away from the air holes because they are closer to the air holes and the air flow is stronger. The metal chips attached to the surface of the annular polishing brush assembly 42 can be scraped off during the movement of the annular polishing brush assembly 42. At the same time, because the location where the metal chips are scraped is closer to the air holes, it is easier to directly suck away the metal chips scraped off the polishing brush 425, thereby improving the cleaning ability of the metal chips attached to the deeper part of the polishing brush 425.

[0042] Embodiment 4

[0043] In order to adjust the position of the polishing wheel at different heights, refer to Figure 1-Figure 7 On the basis of the first embodiment, the annular polishing brush assembly 42 includes an elastic ring 421 sleeved on the outside of the base 41, a notch is provided on one side of the elastic ring 421, the length of the elastic ring 421 is less than the length of the bottom fan-shaped notch and the top fan-shaped notch, the length of the notch is less than the length of the limiting horizontal plate 43, a plurality of collars 422 are sleeved on the outside of the elastic ring 421, a protrusion 423 is fixedly connected to the side of the collar 422 away from the base 41, a fan-shaped block 424 is fixedly connected to the side of the protrusion 423 away from the collar 422, and a fan-shaped block 424 is fixedly connected to the side of the fan-shaped block 424 away from the protrusion 423. There is a polishing brush 425. When in use, the elastic ring 421 allows the annular polishing brush assembly 42 to be squeezed and bent as a whole and then enter the interior of the base 41. When the cylinder 1 44 drives the pushing column 10 to gradually approach the annular polishing brush assembly 42, the protrusion 423 and the fan-shaped block 424 facilitate the pushing column 10 to push the polishing brush 425 and the elastic ring 421 into the interior of the base 41. At the same time, the elasticity of the elastic ring 421 itself also enables the annular polishing brush assembly 42 to expand to the outside of the base 41 after being pushed to the highest point by the cylinder 2 45, completing the process of moving from the bottom of the base 41 to the top of the base 41.

[0044] In order to better push the bottom annular polishing brush assembly 42 into the interior of the base 41 and reduce the extrusion of the polishing brush 425 when pushing the annular polishing brush assembly 42, refer to Figure 7The collar 422 is slidably connected to the elastic ring 421, and a plurality of cross bars 5 are fixedly connected to the outer side of the collar 422. A plurality of longitudinal anti-slip strips 6 are fixedly connected to the inner wall and the outer side of the base 41. When in use, the longitudinal anti-slip strips 6 reduce the possibility of the annular polishing brush assembly 42 rotating relative to the base 41. The collar 422, the protrusion 423, the fan-shaped block 424 and the polishing brush 425 can rotate along the elastic ring 421. When the elastic ring 421 moves to the base 41 When the ring 422 is at the bottom, the inner side is the bottom fan-shaped notch, the collar 422 and the cross bar 5 are not limited, and the protrusion 423, the fan-shaped block 424 and the polishing brush 425 will drive the collar 422 to rotate downward along the elastic ring 421 at a certain angle under the action of their own gravity, while the elastic ring 421 at other positions is limited because the cross bar 5 outside the elastic ring 421 is blocked by the inner base 41, so that the protrusion 423, the fan-shaped block 424 and the polishing brush outside the elastic ring 421 can be 425 is in a direction perpendicular to the base 41, which not only allows a certain angle of gap to exist between the bottom sector block 424 and polishing brush 425 and the sector block 424 and polishing brush 425 above them, and lowers the cylinder 1 44 to push the bottom annular polishing brush assembly 42 to squeeze the annular polishing brush assembly 42 above it, but also allows the bottom protrusion 423, sector block 424 and polishing brush 425 to be in a downwardly inclined state, so that when the cylinder 1 44 drives the pushing column 10 to move, it can directly contact the protrusion 423 and the sector block 424 without being blocked by the polishing brush 425 outside the sector block 424, thereby reducing the degree of extrusion and damage to the bottom polishing brush 425 and the polishing brush 425 above it when adjusting the height of the annular polishing brush assembly 42, and can maintain the integrity of the shape of the polishing brush 425 to the greatest extent, reducing the possibility of the polishing effect of the wheel hub being reduced after the polishing brush 425 is squeezed and bent.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel hub surface processing tool, comprising a bottom bracket (1), characterized in that: The top of the bottom bracket (1) is fixedly connected to two rotating working platforms (2), the top of the rotating working platform (2) is provided with a limiting rod (3) penetrating the rotating working platform (2), and the outside of the limiting rod (3) is installed with an adjustable polishing component (4); The adjustable polishing assembly (4) comprises a base (41) sleeved on the outside of the limiting rod (3), a plurality of annular polishing brush assemblies (42) are sleeved on the outside of the base (41), the interior of the base (41) is hollow, a bottom fan-shaped notch and a top fan-shaped notch are respectively opened on one side of the base (41), a limiting horizontal plate (43) at the middle height of the base (41) is fixedly connected to the side of the base (41) away from the bottom fan-shaped notch, a cylinder 1 (44) for pushing the annular polishing brush assembly (42) at the bottom fan-shaped notch into the interior of the base (41) is installed on the top of the bottom bracket (1), and a cylinder 2 (45) for pushing the annular polishing brush assembly (42) inside the base (41) to rise is fixedly connected to the base of the rotating working platform (2).

2. A wheel hub surface processing tool according to claim 1, characterized in that: The annular polishing brush assembly (42) comprises an elastic ring (421) sleeved on the outside of the base (41); a notch is provided on one side of the elastic ring (421); the length of the elastic ring (421) is smaller than the length of the bottom fan-shaped notch and the top fan-shaped notch; the length of the notch is smaller than the length of the limiting horizontal plate (43); a plurality of sleeve rings (422) are sleeved on the outside of the elastic ring (421); a protrusion (423) is fixedly connected to the side of the sleeve ring (422) away from the base (41); a fan-shaped block (424) is fixedly connected to the side of the protrusion (423) away from the sleeve ring (422); and a polishing brush (425) is fixedly connected to the side of the fan-shaped block (424) away from the protrusion (423).

3. A wheel hub surface processing tool according to claim 2, characterized in that: The collar (422) is slidably connected to the elastic ring (421); a plurality of cross bars (5) are fixedly connected to the outer side of the collar (422); and a plurality of longitudinal anti-slip strips (6) are fixedly connected to the inner wall and the outer side of the base (41).

4. A wheel hub surface processing tool according to claim 2, characterized in that: An air passage is provided inside the limiting rod (3), air vents are provided on the inner wall of the base (41) and the outer side of the limiting rod (3), an exhaust hole is provided on the outer side of the base (41), a filter box (17) connected to the limiting rod (3) is fixedly connected to the top of the bottom bracket (1), one side of the filter box (17) is connected to an exhaust pipe (7), and a scraper assembly (8) for scraping metal chips on the surface of the polishing brush (425) is sleeved on the inner wall of the base (41).

5. A wheel hub surface processing tool according to claim 4, characterized in that: The scraper assembly (8) comprises a rubber ring (81) sleeved on the inner wall of the base (41), a circular hole corresponding to the air hole is opened on the outer side of the rubber ring (81), and a plurality of convex rings (82) are fixedly connected to the outer side of the rubber ring (81).

6. A wheel hub surface processing tool according to claim 1, characterized in that: The top of the bottom bracket (1) is fixedly connected to a support column (9) corresponding to the cylinder one (44), the cylinder one (44) is installed on the top of the support column (9), the output end of the cylinder one (44) is fixedly connected to a push column (10), and the output end of the cylinder two (45) is fixedly connected to a push plate (11).

7. A wheel hub surface processing tool according to claim 1, characterized in that: The top of the limiting rod (3) is provided with an external thread, and a nut (12) for fixing the base (41) is installed outside the limiting rod (3).

8. The wheel hub surface processing tool according to claim 1, characterized in that: An elastic arc plate (13) fixedly connected to the base (41) is provided above the top fan-shaped notch, and an arc block (14) with an arc bottom is fixedly connected to a side of the inner wall of the base (41) away from the elastic arc plate (13).

9. A wheel hub surface processing tool according to claim 1, characterized in that: A polishing table (15) is fixedly connected to the top of the bottom bracket (1), and a clamp (16) is installed on the top of the polishing table (15).

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