A fixing device for polishing automobile wheel hubs

Abstract

This utility model relates to the field of wheel hub polishing technology, specifically to a fixing device for polishing automotive wheel hubs. A rotating rod is fixedly connected to one side of the bottom of a support plate, with the bottom end of the rotating rod penetrating the bottom of the frame and connected to the output shaft of a drive motor. Side plates are fixedly connected to both sides of the top of the support plate, and hydraulic cylinders are bolted to the opposite sides of each side plate. A clamping frame, slidably connected to the support plate, is provided on the opposite side of each side plate. This design solves the problem that traditional clamping structures are only suitable for standard wheel hubs and difficult to adapt to irregular or porous structures, enabling rapid adaptation and clamping of wheel hubs of various shapes and sizes, significantly improving the applicability and flexibility of the equipment. Furthermore, the clamping plates use an elastic connection method, combined with the guiding and buffering effect of the telescopic rod, allowing for automatic adjustment of the force distribution according to the wheel hub contour during clamping, effectively avoiding surface damage caused by uneven pressure during clamping.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub polishing technology, and in particular to a fixing device for polishing automobile wheel hubs. Background Technology

[0002] Automotive wheel hubs are a key component of a vehicle's running system, primarily used to connect the axle and tires, bear the weight of the entire vehicle, and influence its aesthetics, handling performance, and driving stability. Due to the significant dynamic loads and environmental corrosion they endure during operation, high requirements are placed on the surface quality of wheel hubs. Polishing, as an important process in automotive wheel hub manufacturing and repair, mainly aims to remove burrs, scale, scratches, and other defects generated during casting or machining, resulting in a smooth, uniform surface with a metallic luster. This improves the product's appearance, corrosion resistance, and assembly precision. Therefore, in the automotive parts manufacturing and repair industry, efficient wheel hub polishing processes are of great significance for improving product quality and market competitiveness.

[0003] Specifically, existing technology discloses a utility model patent CN222386686U for an automotive wheel hub polishing device, including a base. The base contains a control device comprising a control motor, an adjusting rod, two movable blocks, two movable plates, two clamping plates, and a stop switch. The device activates the control motor to rotate the adjusting rod, causing the two movable blocks to move towards each other within their slots, synchronizing the movement of the movable plates and clamping plates to automatically clamp the wheel hub. When the clamping plates contact and press against the stop switch, the control motor stops, and the spring further contracts to increase the clamping force. Subsequently, an electric telescopic rod controls the downward movement of the mounting frame, and a combination of a rotation motor and a servo motor adjusts the angle and speed of the grinding rollers to complete the polishing process. While this solution demonstrates some innovation in grinding roller angle adjustment and automated polishing, it still has significant shortcomings in its clamping structure design.

[0004] The fixed movement path of the clamping plate lacks adaptability to different wheel hub profiles, easily causing indentations or even deformation on the wheel hub surface during clamping, reducing product yield. More seriously, the clamping process relies on complex linkage mechanisms, resulting in cumbersome operation steps and long debugging times, significantly increasing labor costs and equipment maintenance difficulty, limiting its applicability in multi-variety, small-batch production scenarios. These problems directly lead to low clamping efficiency, high operational complexity, and poor clamping stability in automotive wheel hub polishing, further affecting polishing quality and production continuity, making it difficult to meet the comprehensive demands of modern automotive manufacturing for efficient and flexible production. Therefore, to address the numerous shortcomings of existing technologies, we urgently need an innovative fixing device for automotive wheel hub polishing to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device for polishing automobile wheel hubs, which solves the problem that the movement path of the clamping plate is fixed in the prior art, lacks the ability to adapt to different wheel hub profiles, and easily causes indentations or even deformation on the wheel hub surface during clamping, thus reducing the product yield.

[0006] To achieve the above objectives, this utility model provides a fixing device for polishing automobile wheel hubs, including a frame, a bearing plate rotatably connected to the inner side of the frame, and a drive motor fixedly connected to one side of the bottom of the frame by bolts;

[0007] A rotating rod is fixedly connected to one side of the bottom of the bearing plate, and the bottom end of the rotating rod passes through the bottom of the frame and is connected to the output shaft of the drive motor. Side plates are fixedly connected to both sides of the top of the bearing plate, and hydraulic cylinders are fixedly connected to the opposite sides of the two side plates by bolts. Clamping frames that are slidably connected to the bearing plate are provided on the opposite sides of the two side plates. Several clamping plates are elastically connected to the inner side of the two clamping frames, and telescopic rods are fixedly connected to the upper and lower parts of one side of all the clamping plates. One end of each telescopic rod is fixedly connected to the inner wall of the two clamping frames.

[0008] The frame has an annular plate fixedly connected to its inner bottom, and the bottom of the support plate has several sliding rods fixedly connected to it. One end of each sliding rod is slidably connected to the top of the annular plate through an annular groove.

[0009] The bottom end of the rotating rod passes through the bottom of the frame through a bearing sleeve, and support legs are fixedly connected to the four corners of the bottom of the frame.

[0010] The frame is fixedly connected to a gas collection hood on one side, and a fan is fixedly connected to the outer wall of the frame by bolts. The inlet of the fan is connected to one side of the gas collection hood through a duct.

[0011] The bottom of each of the two clamping frames is fixedly connected to a slider, and both sliders are slidably connected to the support plate through a groove.

[0012] In this configuration, one side of each clamping plate is elastically connected to the inner wall of the two clamping frames via compression springs.

[0013] This utility model discloses a fixing device for polishing automotive wheel hubs. Through the combination of a hydraulic cylinder, clamping frame, elastic clamping plate, and telescopic rod, it solves the problem that traditional clamping structures are only suitable for standard wheel hubs and difficult to adapt to irregular or porous structures. It achieves rapid adaptation and clamping of wheel hubs of various shapes and sizes, significantly improving the applicability and flexibility of the equipment. Secondly, the clamping plate adopts an elastic connection method, combined with the guiding and buffering effect of the telescopic rod, which can automatically adjust the force distribution according to the wheel hub contour during clamping, effectively avoiding surface damage caused by uneven pressure during clamping, and improving product yield and processing consistency. Thirdly, the drive motor... The design, which uses a rotating rod to drive the entire support plate to rotate, allows the wheel hub to rotate continuously during polishing. This facilitates uniform polishing of all parts of the wheel hub by the polishing tool, improving polishing quality and efficiency. Furthermore, the entire clamping system is compact and coordinates its movements. The clamping process can be completed without complex linkage mechanisms, simplifying the operation process, reducing manual debugging time and maintenance costs, and improving the ease of operation and stability of the equipment. Finally, all key components, such as hydraulic cylinders and drive motors, are fixedly connected to their corresponding structures with bolts, facilitating disassembly, replacement, and maintenance, enhancing the modularity and long-term reliability of the equipment. In summary, this invention, by introducing an elastic clamping structure, a multi-directional adjustment mechanism, and a rotating support platform, comprehensively optimizes the problems of unstable clamping, poor adaptability, and complex operation found in traditional automotive wheel hub polishing clamping devices. It significantly improves clamping efficiency, clamping safety, and polishing quality, fully meeting the needs of the modern automotive manufacturing and repair industry for highly adaptable and efficient clamping equipment, and has good engineering application prospects and market promotion value. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the clamping frame structure according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the support plate structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the clamping plate structure according to an embodiment of the present utility model.

[0020] 1. Frame; 2. Drive motor; 3. Rotating rod; 4. Annular plate; 5. Slide rod; 6. Annular groove; 7. Bearing plate; 8. Clamping frame; 9. Clamping plate; 10. Telescopic rod; 11. Compression spring; 12. Gas collection hood; 13. Fan; 14. Air duct; 15. Side plate; 16. Hydraulic cylinder; 17. Slide groove; 18. Slider; 19. Support leg. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figure 1-5 .

[0023] A fixing device for polishing automobile wheel hubs includes a frame 1, a bearing plate 7 rotatably connected to the inner side of the frame 1, and a drive motor 2 fixedly connected to one side of the bottom of the frame 1 by bolts.

[0024] A rotating rod 3 is fixedly connected to one side of the bottom of the bearing plate 7, and the bottom end of the rotating rod 3 passes through the bottom of the frame 1 and is connected to the output shaft of the drive motor 2. Side plates 15 are fixedly connected to both sides of the top of the bearing plate 7, and hydraulic cylinders 16 are fixedly connected to the opposite sides of the two side plates 15 by bolts. Clamping frames 8 that are slidably connected to the bearing plate 7 are provided on the opposite sides of the two side plates 15. Several clamping plates 9 are elastically connected to the inner side of the two clamping frames 8, and telescopic rods 10 are fixedly connected to the upper and lower parts of one side of all the clamping plates 9. One end of all the telescopic rods 10 is fixedly connected to the inner wall of the two clamping frames 8 respectively.

[0025] First, place the car wheel hub to be polished onto the support plate 7 and adjust the clamping position according to the actual shape of the wheel hub. Then, start the drive motor 2, which is installed at the bottom of the frame 1 and fixed with bolts. Its output shaft drives the rotating rod 3, which runs through the bottom of the frame 1, to rotate through the transmission connection. This, in turn, drives the support plate 7 to rotate as a whole, so that the wheel hub can rotate synchronously with the support plate 7, which is convenient for subsequent multi-angle polishing operations. At the same time, the two side plates 15 are fixed to the top two sides of the support plate 7, and each side plate 15 has a hydraulic cylinder fixed to the opposite side by bolts. 16. The output shaft of the hydraulic cylinder 16 pushes the clamping frame 8 to move along the sliding direction of the bearing plate 7. The inner side of the clamping frame 8 is provided with several elastically connected clamping plates 9. The clamping plates 9 are fixedly connected to the inner wall of the clamping frame 8 through the telescopic rod 10. During the clamping process, the clamping force and contact point can be automatically adjusted according to the shape of the wheel hub to achieve adaptive clamping of irregular or irregular wheel hubs and avoid surface indentation or deformation caused by rigid clamping. At the same time, the elastic structure design of the clamping plate 9 also improves the buffering performance during the clamping process, ensuring stable clamping and no damage to the workpiece surface.

[0026] Furthermore, an annular plate 4 is fixedly connected to the bottom inner side of the frame 1, and several sliding rods 5 are fixedly connected to the bottom of the bearing plate 7. One end of each sliding rod 5 is slidably connected to the top of the annular plate 4 via an annular groove 6. During the rotation of the rotating rod 3 by the drive motor 2, which causes the bearing plate 7 to rotate as a whole, the sliding rods 5 slide synchronously along the direction of the annular groove 6, providing auxiliary support and guidance for the bearing plate 7 and preventing it from shifting or wobbling during rotation. This structure effectively enhances the stability and running accuracy of the bearing plate 7 during rotation, improves the overall rigidity when clamping the hub, and ensures the smoothness of the polishing operation.

[0027] Furthermore, the bottom end of the rotating rod 3 passes through the bottom of the frame 1 via a bearing sleeve, and support legs 19 are fixedly connected to the four corners of the bottom of the frame 1. When the drive motor 2 drives the rotating rod 3 to rotate, the bearing sleeve achieves a sealed connection between the rotating rod 3 and the frame 1, reducing friction loss and improving rotational accuracy. At the same time, the support legs 19 provide a stable support foundation for the entire device, enabling it to maintain good stability under different ground conditions. This structure significantly improves the smooth operation of the transmission system and the overall load-bearing capacity of the equipment, and extends the service life of key components.

[0028] Furthermore, a dust collection hood 12 is fixedly connected to one side of the frame 1, and a fan 13 is bolted to one side of the outer wall of the frame 1. The inlet of the fan 13 is connected to one side of the dust collection hood 12 via a duct 14. During the polishing of the car wheel hub, the fan 13 is activated, and a negative pressure suction is formed through the duct 14 and the dust collection hood 12, drawing harmful particles such as metal dust and debris generated during the polishing process into the external dust collection system, thus effectively purifying the processing environment. This structure effectively improves the environmental performance of the equipment, reduces air pollution in the workshop, and protects the occupational health and safety of operators.

[0029] Furthermore, sliders 18 are fixedly connected to the bottom of both clamping frames 8, and both sliders 18 are slidably connected to the support plate 7 via grooves 17. During the movement of the clamping frames 8 by the hydraulic cylinder 16, the sliders 18 slide synchronously along the grooves 17, providing guidance and limiting functions for the movement of the clamping frames 8, preventing deviation or jamming during clamping, thereby improving the accuracy and stability of the clamping action. This structure enhances the horizontal motion control capability of the clamping assembly, ensuring smooth and reliable clamping action.

[0030] Furthermore, one side of each clamping plate 9 is elastically connected to the inner wall of the two clamping frames 8 via compression springs 11. During clamping, the clamping plate 9 can automatically adjust the force distribution according to the shape of the wheel hub, achieving adaptive clamping through the elastic deformation of the compression springs 11. This avoids surface indentations or damage caused by rigid clamping, while improving the buffering performance and clamping stability during the clamping process. This structure effectively enhances the adaptability of the clamping assembly to irregularly shaped or multi-hole wheel hubs, improving clamping safety and product yield.

[0031] In summary:

[0032] First, place the car wheel hub to be polished on the support plate 7 and adjust the clamping position according to its shape. Then, start the drive motor 2, which is installed at the bottom of the frame 1 and fixed with bolts. Its output shaft drives the rotating rod 3, which passes through the bottom of the frame 1 and is connected to it through a bearing sleeve, to rotate. This, in turn, drives the support plate 7 to rotate as a whole, so that the wheel hub can rotate synchronously with the support plate 7, which is convenient for subsequent multi-angle polishing. Several sliding rods 5 are also fixedly connected to the bottom of the support plate 7. One end of the sliding rod 5 is slidably connected to the annular plate 4 fixed to the bottom of the inner side of the frame 1 through the annular groove 6. During the rotation of the support plate 7, it plays a guiding and auxiliary support role, enhancing its running stability. At the same time, two side plates 15 are fixed to the top two sides of the support plate 7, respectively. Each side plate 15 has a hydraulic cylinder 16 fixed to the opposite side by bolts. The output shaft of the hydraulic cylinder 16 pushes the clamping frame 8 to move along the sliding direction of the support plate 7. The bottom of the clamping frame 8 is provided with a slider 18. The slider 18 slides along the sliding groove 17 on the support plate 7, providing a horizontal guiding and limiting function for the clamping frame 8, ensuring clamping. The operation is precise and reliable. Several clamping plates 9 are provided inside the clamping frame 8. One side of each clamping plate 9 is elastically connected to the inner wall of the clamping frame 8 via a compression spring 11, while the other side is fixedly connected to the inner wall of the clamping frame 8 via a telescopic rod 10. During clamping, the clamping force and contact point can be automatically adjusted according to the shape of the wheel hub, achieving flexible clamping of irregularly shaped or porous wheel hubs and avoiding surface indentations or deformation caused by rigid clamping. Furthermore, during polishing, the air collection hood 12 fixedly connected to one side of the frame 1 and the fan 13 fixed to the outer wall via bolts are interconnected via a duct 14. After the fan 13 starts, it generates negative pressure suction, drawing harmful particles such as metal dust and debris generated during polishing into the external dust collection system, effectively purifying the workshop air environment and protecting the health of operators. The entire device is stably supported by four support legs 19 fixed at the bottom corner of the frame 1, ensuring good stability under various ground conditions. Combined with the modular installation design of key components such as the drive motor 2 and hydraulic cylinder 16, the equipment is more convenient to maintain and more reliable.By combining hydraulic cylinder 16, clamping frame 8, clamping plate 9, telescopic rod 10, and compression spring 11, adaptive clamping of various shapes and sizes of automotive wheel hubs is achieved. This solves the problem that traditional clamping structures are only suitable for standard wheel hubs and cannot adapt to irregular or porous structures, significantly improving the applicability and flexibility of the equipment. Secondly, the clamping plate 9 adopts an elastic connection method, combined with the guiding and buffering effect of the telescopic rod 10, which can automatically adjust the force distribution according to the wheel hub contour during clamping, effectively avoiding surface damage caused by uneven pressure during clamping, and improving product yield and processing consistency. Thirdly, the bottom of the support plate 7, through the cooperation design of the sliding rod 5 and the annular groove 6, combined with the rotation support structure of the rotating rod 3 and the bearing sleeve, enhances the stability of the support plate 7 during rotation. The stability and operational precision of the equipment ensure overall rigidity and polishing quality when clamping the wheel hub. Furthermore, the dust removal system comprised of the fan 13, duct 14, and dust collection hood 12 effectively enhances the equipment's environmental performance, reducing dust pollution and lowering the health risks to operators exposed to high concentrations of dust over time. Finally, the sliding connection structure between the slider 18 and the slide groove 17 improves the guiding accuracy of the clamping frame 8 during movement, preventing deviation or jamming during clamping and enhancing the smoothness and stability of the clamping action. All key components, such as the drive motor 2, hydraulic cylinder 16, and fan 13, are fixedly connected to their corresponding structures with bolts, facilitating disassembly, replacement, and maintenance, thus enhancing the modularity and long-term reliability of the equipment. In summary, this utility model, by introducing an elastic clamping structure, a multi-directional adjustment mechanism, a rotating bearing platform, and a high-efficiency dust removal system, comprehensively optimizes the problems of unstable clamping, poor adaptability, complex operation, and lack of environmental protection measures in traditional automotive wheel polishing clamping devices. It significantly improves clamping efficiency, clamping safety, and polishing quality, fully meeting the needs of the modern automotive manufacturing and repair industry for highly adaptable and efficient clamping equipment, and has good engineering application prospects and market promotion value.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A fixing device for polishing automobile wheel hubs, comprising a frame, characterized in that, It also includes a bearing plate rotatably connected to the inner side of the frame, and a drive motor fixedly connected to one side of the bottom of the frame by bolts; A rotating rod is fixedly connected to one side of the bottom of the bearing plate, and the bottom end of the rotating rod passes through the bottom of the frame and is connected to the output shaft of the drive motor. Side plates are fixedly connected to both sides of the top of the bearing plate, and hydraulic cylinders are fixedly connected to the opposite sides of the two side plates by bolts. Clamping frames that are slidably connected to the bearing plate are provided on the opposite sides of the two side plates. Several clamping plates are elastically connected to the inner sides of the two clamping frames, and telescopic rods are fixedly connected to the upper and lower parts of one side of all the clamping plates. One end of each telescopic rod is fixedly connected to the inner wall of the two clamping frames.

2. The fixing device for polishing automobile wheel hubs as described in claim 1, characterized in that, An annular plate is fixedly connected to the bottom inner side of the frame, and several sliding rods are fixedly connected to the bottom of the bearing plate. One end of each sliding rod is slidably connected to the top of the annular plate through an annular groove.

3. The fixing device for polishing automobile wheel hubs as described in claim 1, characterized in that, The bottom end of the rotating rod passes through the bottom of the frame through a bearing sleeve, and support legs are fixedly connected at the four corners of the bottom of the frame.

4. The fixing device for polishing automobile wheel hubs as described in claim 1, characterized in that, A gas collection hood is fixedly connected to one side of the frame, and a fan is fixedly connected to one side of the outer wall of the frame by bolts. The inlet of the fan is connected to one side of the gas collection hood through a duct.

5. The fixing device for polishing automobile wheel hubs as described in claim 1, characterized in that, Both clamping frames have sliders fixedly connected to their bottoms, and both sliders are slidably connected to the support plate via grooves.

6. The fixing device for polishing automobile wheel hubs as described in claim 1, characterized in that, One side of each of the clamping plates is elastically connected to the inner wall of the two clamping frames by compression springs.

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