An apparatus for surface treatment of automobile wheel hubs

Abstract

The present application relates to the technical field of hub surface treatment, and particularly relates to a device for automobile hub surface treatment. The device for automobile hub surface treatment comprises a mounting shell, a mounting ring, V-shaped clamping blocks, a rotating assembly, an L-shaped rod and a driving assembly, the front side wall of the mounting shell is symmetrically provided with protective doors, a polishing mechanism is mounted on one side of the inside of the mounting shell, and a polishing mechanism is mounted on the other side of the inside of the mounting shell. The device for automobile hub surface treatment provided by the present application is driven by a motor to rotate the rotating table through the design of the rotating assembly, so that the mounting ring and the hub inside the mounting ring are synchronously indexed, and the polishing mechanism and the polishing mechanism are arranged on both sides of the mounting shell. When one end is polished, the other end can be polished synchronously, and the whole switching process does not need to be stopped, does not need to be loosened, and does not need manual intervention. Single clamping completes double-sided processing, greatly improves production efficiency, and significantly shortens the production cycle.

Description

Technical Field

[0001] This invention relates to the field of wheel hub surface treatment technology, and more particularly to a device for surface treatment of automobile wheel hubs. Background Technology

[0002] As a core load-bearing component of a vehicle's driving system, the performance of automotive wheels directly affects driving safety, handling stability, and ride comfort. Simultaneously, wheels are also an important part of a car's exterior styling, with their surface quality and gloss significantly influencing the overall visual appeal. In the manufacturing process of automotive wheels, surface treatment is an indispensable key step. Through processes such as grinding and polishing, not only are burrs, oxide scale, and processing marks removed from the wheel surface, improving surface smoothness and gloss, but the corrosion resistance and wear resistance of the wheels are also enhanced, extending their service life.

[0003] Currently, the common process flow for surface treatment equipment for automotive wheel hubs when grinding and polishing the end face of the wheel hub is as follows: The operator places the wheel hub to be treated in the clamping station, and the clamping mechanism firmly clamps and fixes one end face of the wheel hub; then the equipment is started, and the grinding and polishing mechanisms sequentially grind and polish the other end face of the wheel hub; after the end face is treated, the equipment stops running, the clamping mechanism is released, the wheel hub is rotated 180 degrees so that the treated end face faces the clamping mechanism, and it is clamped and fixed again; finally, the equipment is restarted to grind and polish the remaining untreated end face.

[0004] In actual production applications, the aforementioned traditional wheel hub surface treatment methods require two independent clamping operations for the entire wheel hub end face treatment process. Between these two clamping operations, the machine must be completely stopped while manual rotation and repositioning of the wheel hub are performed. This switching process is cumbersome and time-consuming, significantly increasing the production cycle of a single product. Furthermore, automotive wheel hubs typically have considerable weight and volume, and frequent manual handling, rotation, and clamping significantly increase the labor intensity of operators. Secondly, a large amount of production time is consumed in manual clamping, end face switching, and equipment waiting, resulting in a low percentage of actual effective equipment working time and a serious waste of production resources, thereby increasing the company's production costs.

[0005] Therefore, it is necessary to provide a new device for surface treatment of automotive wheel hubs to solve the above-mentioned technical problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a device for surface treatment of automobile wheel hubs.

[0007] The device for surface treatment of automobile wheel hubs provided by this invention includes: a mounting shell, a mounting ring, V-shaped clamps, a rotating assembly, an L-shaped rod, and a driving assembly. Protective doors are symmetrically installed on the front sidewall of the mounting shell. A grinding mechanism is installed on one side of the interior of the mounting shell, and a polishing mechanism is installed on the other side. A mounting ring is installed in the middle of the interior of the mounting shell. V-shaped clamps are equidistantly arranged around the two sides of the mounting ring. A rotating assembly is installed between the mounting shell and the mounting ring, driving the mounting ring to rotate and thus changing the end face position of the wheel hub to be treated. An L-shaped rod is provided on the top of the mounting shell, and a driving assembly is installed between the mounting shell and the L-shaped rod, driving the L-shaped rod to move for placing and removing the wheel hub.

[0008] Preferably, the mounting ring is rotatably connected to the inside of the mounting ring. Both ends of the outer sidewalls of the rotating ring are fixedly connected to annular plates. Each sidewall of the annular plate is circumferentially and equidistantly connected to an electric push rod. Each push rod has a fixed bracket at its output end and a guide rod at the other end of the fixed bracket. Each sidewall of the annular plate is fixedly connected to a positioning ring corresponding to the guide rod. The guide rod is placed inside the corresponding positioning ring and is slidably connected to its inner wall.

[0009] Preferably, each of the fixed frames is fixedly connected to a sleeve in the middle, each of the sleeves is fixedly connected to a spring on its inner wall, each of the springs is fixedly connected to a slide rod at the other end, and each of the slide rods is fixedly connected to a corresponding V-shaped clamping block.

[0010] Preferably, the rotating assembly includes: a rotating platform, a worm gear, a worm, and a motor. The rotating platform is rotatably connected inside the mounting housing. Support rods are symmetrically fixedly connected to the bottom side of the mounting ring, and the bottom ends of the support rods are fixedly connected to the top of the rotating platform. A mounting frame is fixedly connected inside the bottom side of the mounting housing. A motor is fixedly connected inside the mounting frame, and a worm is fixedly connected to its output end. A shaft is fixedly connected to the center of the bottom end of the rotating platform, and a worm gear is fixedly connected to the bottom end of the shaft. The worm and the worm gear mesh with each other.

[0011] Preferably, a vertical rod is fixedly connected to the top side of the mounting ring, and the top end of the vertical rod is rotatably connected to the inner wall of the top side of the mounting shell.

[0012] Preferably, a second motor is fixedly connected inside the rotating platform, and a drive gear is fixedly connected to its output end. A through slot is opened on the top of the rotating platform, and the top side of the drive gear is placed inside the through slot. A driven gear is rotatably connected to the bottom side of the mounting ring, and the drive gear and the driven gear mesh with each other. A toothed ring is fixedly sleeved on the outer wall of the middle part of the rotating ring, and the driven gear and the toothed ring mesh with each other.

[0013] Preferably, the drive assembly includes: a hydraulic push rod, a guide rod, and a slide. The guide rod is symmetrically fixedly connected to the top of the mounting housing, and the slide is slidably connected to the outside of the guide rod. The hydraulic push rod is fixedly connected to the top of the mounting housing, and its output end is fixedly connected to the slide.

[0014] Preferably, an electric push rod is fixedly connected to the top of the slide, and its output end passes through the bottom of the slide and is fixedly connected to a connecting plate. A circular groove is opened at the other end of the connecting plate, and the top end of the vertical section of the L-shaped rod is placed inside the circular groove and rotatably connected to its inner wall.

[0015] Preferably, a cross-shaped groove is provided inside the vertical section of the rod, and a motor is fixedly connected to the bottom end of the slide. The output end of the motor passes through the bottom of the slide and is fixedly connected to the cross-shaped rod. The cross-shaped rod is placed in the cross-shaped groove and is slidably connected to its inner wall.

[0016] Preferably, a control cabinet is fixedly connected to the side wall of the mounting shell, and observation windows are provided inside the protective doors.

[0017] Compared with related technologies, the equipment for surface treatment of automobile wheel hubs provided by the present invention has the following beneficial effects: Through the design of the rotating components, the motor drives the worm gear mechanism to rotate the turntable, so that the mounting ring and its internal hub are rotated synchronously. With the layout of the grinding mechanism and polishing mechanism placed on both sides of the mounting shell, the grinding on one end can be carried out at the same time as the polishing on the other end. The entire switching process does not require stopping the machine, loosening the clamp, or manual intervention. Double-sided processing is completed in a single clamping, which greatly improves production efficiency and significantly shortens the production cycle.

[0018] The rotating assembly uses a motor to drive a worm gear and worm wheel, which in turn rotate the turntable 90° or 180°. The worm gear and worm wheel have self-locking characteristics, automatically locking after rotation to the correct position, eliminating the need for an additional braking device. During end-face switching, the wheel hub is always firmly clamped by the V-shaped clamps, eliminating the need for a process of loosening, re-aligning, and re-clamping. This avoids secondary positioning errors and eliminates the risk of scratches on the wheel hub surface caused by repeated clamping. Furthermore, operators only need to place and remove the wheel hub from outside the protective door, without needing to enter the equipment or manually move and flip the wheel hub, significantly reducing physical labor.

[0019] Through the design of the drive components and L-shaped rods, combined with the electric push rod II controlling the lifting and lowering of the L-shaped rods and the motor III controlling the flipping, the operator only needs to complete two actions, "placing" and "removing," during the entire loading and unloading process, which greatly reduces the labor intensity. Attached Figure Description

[0020] Figure 1 A schematic diagram of the device for surface treatment of automobile wheel hubs provided by the present invention; Figure 2 for Figure 1 The diagram shows a structural schematic of the first cross-section of the mounting housing. Figure 3 for Figure 2 The diagram shows a structural schematic of the second cross-section of the mounting housing. Figure 4 for Figure 3 The diagram shows the structure at point A. Figure 5 for Figure 3 The diagram shows a structural schematic of the third cross-section of the mounting housing. Figure 6 for Figure 5 The diagram shows a partial cross-section of the mounting ring. Figure 7 for Figure 6 The diagram shows the structure at point B. Figure 8 for Figure 6 The diagram shows the structure at point C. Figure 9 for Figure 6 The diagram shows the structure at point D.

[0021] The diagram is labeled as follows: 1. Mounting housing; 2. Protective door; 3. Grinding mechanism; 4. Polishing mechanism; 5. Mounting ring; 6. V-shaped clamp; 7. L-shaped rod; 8. Rotating ring; 9. Electric push rod one; 10. Fixing frame; 11. Guide rod; 12. Sleeve; 13. Spring; 14. Slide rod; 15. Rotating table; 16. Worm gear; 17. Worm; 18. Motor one; 19. Motor two; 20. Driving gear; 21. Driven gear; 22. Gear ring; 23. Hydraulic push rod; 24. Guide rod; 25. Slide seat; 26. Electric push rod two; 27. Connecting plate; 28. Motor three; 29. ​​Cross-shaped rod; 30. Control cabinet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments. Example

[0024] Please see Figures 1 to 4A device for surface treatment of automobile wheel hubs, comprising: a mounting shell 1, a mounting ring 5, V-shaped clamps 6, a rotating assembly, an L-shaped rod 7, and a drive assembly. Protective doors 2 are symmetrically installed on the front side wall of the mounting shell 1. A grinding mechanism 3 is installed on one side of the interior of the mounting shell 1, and a polishing mechanism 4 is installed on the other side. A mounting ring 5, a circular open ring with an opening width greater than the maximum diameter of the wheel hub to be treated, is installed in the middle of the interior of the mounting shell 1 to facilitate wheel hub entry and exit. Three V-shaped clamps 6 are equidistantly arranged on both sides of the mounting ring 5. The mounting shell 1 and the mounting ring... A rotating assembly is installed between the mounting rings 5 ​​and 6. The rotating assembly drives the mounting ring 5 to rotate, thereby changing the end face position of the wheel hub to be processed. An L-shaped rod 7 is provided on the top of the mounting shell 1. A driving assembly is installed between the mounting shell 1 and the L-shaped rod 7. The driving assembly drives the L-shaped rod 7 to move, thereby placing and removing the wheel hub. The grinding mechanism 3 includes a first linear module, a grinding motor, and a grinding wheel. The first linear module is fixedly installed on the left inner wall of the mounting shell 1 along the width direction. The grinding motor is fixedly installed on the slide of the first linear module. The grinding wheel is fixedly installed on the output shaft of the grinding motor. The axis of the grinding wheel is parallel to the axis of the mounting ring 5. The polishing mechanism 4 includes a second linear module, a polishing motor, and a polishing cloth wheel. The second linear module is fixedly installed on the right inner wall of the mounting shell 1 along the width direction. The polishing motor is fixedly installed on the slide of the second linear module. The polishing cloth wheel is fixedly installed on the output shaft of the polishing motor. The axis of the polishing cloth wheel is parallel to the axis of the mounting ring 5.

[0025] The mounting ring 5 is internally connected to a rotating ring 8. Both ends of the rotating ring 8 are fixedly connected to annular plates on their outer sidewalls. Electric push rods 9 are fixedly connected to the sidewalls of the annular plates at equal intervals around their circumference. The output ends of the push rods 9 are fixedly connected to fixed frames 10. The other end of the fixed frames 10 is fixedly connected to guide rods 11. The sidewalls of the annular plates are fixedly connected to positioning rings corresponding to the guide rods 11. The guide rods 11 are placed inside the corresponding positioning rings and are slidably connected to their inner walls.

[0026] Each of the fixed frames 10 has a sleeve 12 fixedly connected to its middle part, and a spring 13 fixedly connected to the inner wall of each sleeve 12. Each of the spring 13 has a slide rod 14 fixedly connected to its other end, and the other end of each slide rod 14 is fixedly connected to the corresponding V-shaped clamp 6.

[0027] The rotating assembly includes a rotating platform 15, a worm gear 16, a worm 17, and a motor 18. The rotating platform 15 is rotatably connected inside the mounting housing 1. Support rods are symmetrically fixed to the bottom side of the mounting ring 5, and the bottom ends of the support rods are fixedly connected to the top of the rotating platform 15. A mounting frame is fixedly connected inside the bottom side of the mounting housing 1, and a motor 18 is fixedly connected inside the mounting frame. The output end of the motor 18 is fixedly connected to the worm 17. A shaft is fixedly connected to the center of the bottom end of the rotating platform 15, and the bottom end of the shaft is fixedly connected to the worm gear 16. The worm 17 and the worm gear 16 mesh with each other.

[0028] A vertical rod is fixedly connected to the top side of the mounting ring 5, and the top end of the vertical rod is rotatably connected to the inner wall of the top side of the mounting shell 1.

[0029] A motor 19 is fixedly connected inside the rotating platform 15, and a drive gear 20 is fixedly connected to its output end. A through slot is opened on the top of the rotating platform 15, and the top side of the drive gear 20 is placed inside the through slot. A driven gear 21 is rotatably connected to the bottom side of the mounting ring 5, and the drive gear 20 and the driven gear 21 mesh with each other. A toothed ring 22 is fixedly sleeved on the outer wall of the middle part of the rotating ring 8, and the driven gear 21 and the toothed ring 22 mesh with each other. Example

[0030] Please see Figures 1 to 4 The drive assembly includes a hydraulic push rod 23, a guide rod 24, and a slide 25. The top of the mounting housing 1 is symmetrically and fixedly connected to the guide rod 24, and the outside of the guide rod 24 is slidably connected to the slide 25. The top of the mounting housing 1 is fixedly connected to the hydraulic push rod 23, and its output end is fixedly connected to the slide 25.

[0031] An electric push rod 26 is fixedly connected to the top of the slide block 25. Its output end passes through the bottom of the slide block 25 and is fixedly connected to a connecting plate 27. A circular groove is opened at the other end of the connecting plate 27. The top of the vertical section of the L-shaped rod 7 is placed inside the circular groove and is rotatably connected to its inner wall. A sliding groove is opened on the top of the mounting shell 1. The top of the vertical section of the L-shaped rod 7 is placed in the clearance groove.

[0032] The vertical section of the rod has a cross-shaped groove. The bottom end of the slide block 25 is fixedly connected to the motor 28. Its output end passes through the bottom of the slide block 25 and is fixedly connected to the cross-shaped rod 29. The cross-shaped rod 29 is placed in the cross-shaped groove and is slidably connected to its inner wall.

[0033] The control cabinet 30 is fixedly connected to the side wall of the mounting shell 1, and the interior of the protective door 2 is provided with observation windows; the control cabinet 30 is equipped with a PLC controller and a touch screen human-machine interface.

[0034] The working principle of the device for automotive wheel hub surface treatment provided by this invention is as follows: In the initial state of the equipment, the opening of the mounting ring 5 faces the protective door 2 on the front side of the mounting shell 1, facilitating the entry and exit of the wheel hub; the grinding mechanism 3 and the polishing mechanism 4 are both retracted to the initial standby positions on both sides inside the mounting shell 1, maintaining a safe distance from the mounting ring 5; all electric push rods 9 are in a fully retracted state, driving the corresponding V-shaped clamps 6 to their maximum open positions, far apart from each other; the hydraulic push rod 23 is in a fully retracted state, driving the slide 25 to the end of the guide rod 24; the electric push rod 26 is in a fully retracted state, driving the L-shaped rod 7 to its highest position; motors 18, 19, and 28 are all in a power-off locked state.

[0035] The operator opens the protective door 2, and the control cabinet 30 starts the automatic feeding program: the hydraulic push rod 23 starts and extends, pushing the slide 25 to move smoothly along the axis of the two guide rods 24 until the slide 25 reaches the middle position of the guide rods 24, then the hydraulic push rod 23 stops and locks; the electric push rod 26 starts and extends, and its output end drives the L-shaped rod 7 to move downward along the axis of the cross rod 29 through the connecting plate 27 until the L-shaped rod 7 reaches the lowest position, then the electric push rod 26 stops and locks; the hydraulic push rod 23 starts again and continues to extend, pushing the slide 25 to continue to move to the left until the horizontal section of the L-shaped rod 7 is fully extended to the feeding position outside the protective door 2, then the hydraulic push rod 23 stops and locks. The operator aligns the center flange hole of the hub to be processed with the horizontal section of the L-shaped rod 7 and, after confirming that the hub is placed stably, sends a signal to the control cabinet 30 indicating that the loading is complete. The electric push rod 26 starts and retracts, driving the L-shaped rod 7 and the hub to move upward synchronously until the axis of the horizontal section of the L-shaped rod 7 is completely aligned with the axis of the mounting ring 5. Then, the electric push rod 26 stops and locks. The hydraulic push rod 23 starts and retracts, driving the slide 25 to move to the middle position of the guide rod 24. Then, the hydraulic push rod 23 stops and locks. The motor 3 28 starts, and its output end drives the cross-shaped rod 29 to rotate 180 degrees. The cross-shaped rod 29, through its cooperation with the cross-shaped groove inside the vertical section of the L-shaped rod 7, drives the L-shaped rod 7 and the hub to rotate 180 degrees synchronously, so that the end face of the hub to be processed faces the inside of the mounting ring 5. The hydraulic push rod 23 starts again and continues to retract, driving the slide 25 to continue to move to the right until the hub is completely inside the center position of the mounting ring 5. Then, the hydraulic push rod 23 stops and locks.

[0036] After the hub reaches the predetermined position inside the mounting ring 5, the control cabinet 30 starts the clamping procedure: all the electric push rods 9 on the annular plates at both ends of the rotating ring 8 start and extend synchronously, driving the corresponding fixing frame 10 to move towards the center of the mounting ring 5; the guide rod 11 slides synchronously with the fixing frame 10 in the positioning ring to ensure the straightness and stability of the movement of the fixing frame 10 and prevent the V-shaped clamp 6 from shifting; when the clamping surface of the V-shaped clamp 6 contacts the outer circumferential wall of the hub, the electric push rod 9 continues to retract, at which time the slide rod 14 begins to move into the sleeve 12 and compress the spring 13; When the control cabinet 30 detects that the spring 13 has reached the preset compression level, all electric push rods 9 immediately stop running and self-lock; at this time, the hub is firmly fixed inside the mounting ring 5 under the elastic clamping of multiple sets of V-shaped clamps 6 evenly distributed in a ring, and the axis of the hub and the axis of the mounting ring 5 are kept highly coaxial. Next, the hydraulic push rod 23 is activated and extended, driving the slide block 25 and the L-shaped rod 7 to move, causing the L-shaped rod 7 to disengage from the center flange hole of the hub. Then, the electric push rod 26 is activated and retracted, driving the L-shaped rod 7 to move upward to a safe position.

[0037] After clamping is completed and the operator closes the protective door 2, the control cabinet 30 starts the grinding program: the motor 18 starts, and its output end drives the worm gear 17 to rotate. The worm gear 17 drives the shaft and the rotating table 15 to rotate 90 degrees synchronously through meshing with the worm wheel 16. The rotating table 15 drives the mounting ring 5 and the wheel hub fixed inside it to rotate 90 degrees synchronously through the support rod, so that the two end faces of the wheel hub face the grinding mechanism 3 on the left side and the polishing mechanism 4 on the right side inside the mounting shell 1, respectively. Next, motor 219 starts, and its output drives the drive gear 20 to rotate. The drive gear 20 drives the gear ring 22 and the rotating ring 8 to rotate synchronously through meshing with the driven gear 21. The rotating ring 8 drives the hub to rotate at a constant speed around its own axis through the clamping assembly composed of electric push rod 19, fixed frame 10, sleeve 12, spring 13, slide rod 14 and V-shaped clamp 6. The grinding mechanism 3 gradually approaches the end face of the wheel hub facing one side according to the preset feed speed. After contacting the end face, it performs grinding operations according to the preset process parameters to remove burrs, oxide scale and processing marks from the end face. At this time, the polishing mechanism 4 remains in the initial position and does not start. After the end face is ground, the grinding mechanism 3 retracts to the initial standby position according to the preset path, the motor 19 stops running, and the wheel hub stops rotating.

[0038] After the first end face is polished, the control cabinet 30 starts the end face switching program: motor 18 starts again, driving the rotating table 15 and the mounting ring 5 to rotate 180 degrees synchronously, so that the two end faces of the hub are switched. The polished end face faces the polishing mechanism 4, and the untreated end face faces the polishing mechanism 3; motor 18 stops running and self-locks, completing the automatic switching of the hub end face. The whole process does not require manual intervention or loosening of the clamping mechanism.

[0039] After the end face switching is completed, the control cabinet 30 starts the synchronous processing program: motor 19 starts again, driving the hub to rotate at a constant speed around its own axis; the grinding mechanism 3 and the polishing mechanism 4 simultaneously approach their respective hub end faces according to the preset feed speed; the grinding mechanism 3 performs grinding operations on the unprocessed end face that has just been switched over, and the polishing mechanism 4 simultaneously performs polishing operations on the end face that has been ground to improve the surface smoothness; Following the above steps, once the grinding and polishing operations on both end faces are completed, the grinding mechanism 3 and the polishing mechanism 4 simultaneously retract to their initial standby positions, the motor 19 stops running, and the wheel hub stops rotating.

[0040] After all processing is completed, the control cabinet 30 starts the unloading procedure: Motor 18 starts, driving the rotating table 15 and the mounting ring 5 to rotate 90 degrees, so that the opening direction of the mounting ring 5 is facing the protective door 2 again; then, the electric push rod 26 starts to extend, driving the L-shaped rod 7 to move downward through the connecting plate 27, so that the horizontal section axis of the L-shaped rod 7 coincides with the axial direction of the mounting ring 5; then, the hydraulic push rod 23 starts to retract, driving the slide 25 and the L-shaped rod 7 to move, so that the horizontal section of the L-shaped rod 7 is inserted into the center hole of the wheel hub again; then, all electric push rods 9 start and retract simultaneously, driving the V-shaped clamp 6 to move away from the center, releasing the clamp on the wheel hub, until the V-shaped clamp 6 returns to the initial open position; At this point, the L-shaped rod 7 supports the wheel hub, and the wheel hub is moved smoothly out of the mounting ring 5 in the reverse process of feeding, until the horizontal section of the L-shaped rod 7 extends again to the unloading position outside the protective door 2; the operator removes the processed wheel hub, completing one work cycle.

[0041] After the material is unloaded, the control cabinet 30 controls all actuators to reset to their initial state, awaiting the processing of the next wheel hub.

[0042] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0043] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An apparatus for surface treatment of automobile wheel hubs, characterized in that, include: Mounting shell (1), protective doors (2) are symmetrically installed on the front side wall of mounting shell (1), a grinding mechanism (3) is installed on one side inside mounting shell (1), and a polishing mechanism (4) is installed on the other side inside mounting shell (1). Mounting ring (5) is installed in the middle of the interior of the mounting shell (1); V-shaped clamps (6) are provided on both sides of the mounting ring (5) at equal intervals around the circumference; A rotating assembly is installed between the mounting shell (1) and the mounting ring (5). The rotating assembly drives the mounting ring (5) to rotate, which is used to drive the hub to be processed to change the end face position. L-shaped rod (7), the top of the mounting shell (1) is provided with L-shaped rod (7); A drive assembly is installed between the mounting housing (1) and the L-shaped rod (7). The drive assembly drives the L-shaped rod (7) to move for placing and removing the wheel hub.

2. The equipment for surface treatment of automobile wheel hubs according to claim 1, characterized in that, The mounting ring (5) is rotatably connected to a rotating ring (8). Both ends of the rotating ring (8) are fixedly connected to annular plates on their outer sidewalls. The sidewalls of the annular plates are fixedly connected to electric push rods (9) at equal intervals around the circumference. The output ends of the push rods are fixedly connected to a fixed frame (10). The other end of the fixed frame (10) is fixedly connected to a guide rod (11). The sidewalls of the annular plates are fixedly connected to positioning rings corresponding to the guide rods (11). The guide rods (11) are placed inside the corresponding positioning rings and are slidably connected to their inner walls.

3. The equipment for surface treatment of automobile wheel hubs according to claim 2, characterized in that, Each of the fixed frames (10) is fixedly connected to a sleeve (12), and each of the inner walls of the sleeve (12) is fixedly connected to a spring (13). Each of the other ends of the spring (13) is fixedly connected to a slide rod (14), and each of the other ends of the slide rod (14) is fixedly connected to a corresponding V-shaped clamp (6).

4. The apparatus for surface treatment of automobile wheel hubs according to claim 3, characterized in that, The rotating assembly includes a rotating platform (15), a worm gear (16), a worm (17), and a motor (18). The rotating platform (15) is rotatably connected inside the mounting housing (1). Support rods are symmetrically fixedly connected to the bottom side of the mounting ring (5). The bottom ends of the support rods are fixedly connected to the top of the rotating platform (15). A mounting frame is fixedly connected inside the bottom side of the mounting housing (1). A motor (18) is fixedly connected inside the mounting frame. The output end of the motor (17) is fixedly connected to the worm gear (17). A shaft is fixedly connected to the center of the bottom end of the rotating platform (15). The bottom end of the shaft is fixedly connected to the worm gear (16). The worm gear (17) and the worm gear (16) mesh with each other.

5. The apparatus for surface treatment of automobile wheel hubs according to claim 4, characterized in that, A vertical rod is fixedly connected to the top side of the mounting ring (5), and the top end of the vertical rod is rotatably connected to the inner wall of the top side of the mounting shell (1).

6. The apparatus for surface treatment of automobile wheel hubs according to claim 4, characterized in that, The rotating platform (15) is fixedly connected to a motor (19), and its output end is fixedly connected to a drive gear (20). The top of the rotating platform (15) is provided with a through slot, and the top side of the drive gear (20) is placed inside the through slot. The bottom side of the mounting ring (5) is rotatably connected to a driven gear (21), and the drive gear (20) and the driven gear (21) mesh with each other. The outer wall of the middle part of the rotating ring (8) is fixedly fitted with a toothed ring (22), and the driven gear (21) and the toothed ring (22) mesh with each other.

7. The apparatus for surface treatment of automobile wheel hubs according to claim 1, characterized in that, The drive assembly includes a hydraulic push rod (23), a guide rod (24), and a slide (25). The top of the mounting housing (1) is symmetrically and fixedly connected to the guide rod (24), and the outside of the guide rod (24) is slidably connected to the slide (25). The top of the mounting housing (1) is fixedly connected to the hydraulic push rod (23), and its output end is fixedly connected to the slide (25).

8. The apparatus for surface treatment of automobile wheel hubs according to claim 7, characterized in that, The top of the slide (25) is fixedly connected to an electric push rod (26), and its output end passes through the bottom of the slide (25) and is fixedly connected to a connecting plate (27). The other end of the connecting plate (27) is provided with a circular groove. The top of the vertical section of the L-shaped rod (7) is placed inside the circular groove and is rotatably connected to its inner wall.

9. The apparatus for surface treatment of automobile wheel hubs according to claim 8, characterized in that, The vertical section of the L-shaped rod (7) has a cross-shaped groove. The bottom end of the slide (25) is fixedly connected to the motor (28), and its output end passes through the bottom of the slide (25) and is fixedly connected to the cross-shaped rod (29). The cross-shaped rod (29) is placed in the cross-shaped groove and is slidably connected to its inner wall.

10. The apparatus for surface treatment of automobile wheel hubs according to claim 1, characterized in that, The side wall of the mounting shell (1) is fixedly connected to the control cabinet (30), and the interior of the protective door (2) is provided with observation windows.

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