A wheel hub fixing device for processing automobile wheel hub
Patent Information
- Application Number
- CN202522639228.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-12
AI Technical Summary
一是采用传统三爪卡盘等通用夹具进行径向夹紧，虽操作简单，但极易在轮毂外缘或漆面上留下压痕或划伤，影响产品外观质量，且对不同尺寸轮毂的调整耗时费力，定位精度难以保证；
1.本实用新型通过固定台、夹持组件、驱动组件、活动板、压紧板、滑道、液压伸缩杆、导向杆、安装槽、导向轮、引导槽、滑杆、弹簧和滑块的配合使用，该装置通过液压伸缩杆驱动活动板带动导向轮沿倾斜引导槽运动，将轴向位移转化为多个压紧板的同步径向扩张，实现从轮毂内部对其进行均匀、稳定的胀紧固定。压紧板表面橡胶块有效保护轮毂漆面，而其可调行程适配不同尺寸轮毂。复位弹簧确保夹持快速、自动释放。整体操作简便、夹持可靠，克服了传统装夹方式易损伤工件及通用性不足的缺点。
Smart Images
Figure CN224897176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive wheel hub processing technology, specifically to a wheel hub fixing device for automotive wheel hub processing. Background Technology
[0002] The production and repair of automotive wheel rims typically involve multiple processing steps, including milling, drilling, dynamic balancing, and surface treatment or cleaning. These steps generally require reliable, precise, and efficient clamping and fixing of the wheel rim. Currently, common wheel rim fixing methods have the following main shortcomings: First, using traditional three-jaw chucks and other general-purpose clamps for radial clamping is simple to operate, but it is very easy to leave indentations or scratches on the outer edge of the wheel hub or the painted surface, affecting the appearance quality of the product. Moreover, adjusting wheel hubs of different sizes is time-consuming and laborious, and the positioning accuracy is difficult to guarantee. Secondly, positioning and locking are achieved through the mounting holes (center hole and bolt hole) at the center of the hub. While this method can avoid damaging the outer surface, it lacks stability when subjected to large radial cutting forces. Furthermore, it requires frequent replacement of special positioning discs or bushings for hubs with different hole spacing or center hole diameters, resulting in numerous spare parts, complex management, and poor versatility.
[0003] Therefore, it is necessary to provide a wheel hub fixing device for automobile wheel hub processing to solve the above-mentioned technical problems. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a wheel hub fixing device for automobile wheel hub processing, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A wheel hub fixing device for automobile wheel hub processing, comprising: A fixed platform, wherein a support frame is fixedly installed at the bottom of the fixed platform, and a clamping component and a driving component are respectively provided at the top of the fixed platform; The clamping assembly includes several slides, which are equidistantly and evenly distributed on the top of the fixed platform. A pressure plate is provided on the slide, and a guide groove is provided on the pressure plate. A reset assembly is provided inside the slide. The drive assembly includes a movable plate, which is located above the center of the top of the fixed platform. A hydraulic telescopic rod is fixedly installed at the bottom of the fixed platform, and the drive end of the hydraulic telescopic rod passes through the fixed platform and extends to the top of the fixed platform. The drive end of the hydraulic telescopic rod is fixedly connected to the bottom of the movable plate, and a push assembly is provided on the movable plate.
[0006] As a preferred technical solution of this application, a number of stabilizing rods are fixedly installed at the bottom of the movable plate, and the top of the fixed platform is provided with sliding holes corresponding to the position and number of stabilizing rods, and the fixed platform is slidably connected to the stabilizing rods through the sliding holes.
[0007] As a preferred technical solution of this application, the reset assembly includes a slide rod, which is fixedly installed inside the slide rail. A slider is sleeved on the outer wall of the slide rod and is slidably installed on the slide rail. The top of the slider is fixedly connected to the bottom of the pressure plate. A spring is sleeved on the outer wall of the slide rod on one side of the slider.
[0008] As a preferred technical solution of this application, the pressing assembly includes a plurality of guide rods, and the plurality of guide rods are fixedly installed on the outside of the movable plate. The position and number of the guide rods correspond to the pressing plate. One end of the guide rod extends into the interior of the guide groove on the pressing plate. One end of the guide rod is provided with an installation groove. A guide wheel is rotatably installed inside the installation groove, and the guide wheel makes rolling contact with the inner wall of the guide groove.
[0009] As a preferred technical solution of this application, a reinforcing rib is fixedly installed between the guide rod and the top of the movable plate.
[0010] As a preferred technical solution of this application, the slider has a sliding hole adapted to the slide rod, and the slider is slidably connected to the slide rod through the sliding hole.
[0011] As a preferred technical solution of this application, the guide groove is inclined, and a rubber block is provided at the outer end of the pressing plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes the coordinated use of a fixed platform, clamping assembly, drive assembly, movable plate, pressure plate, slide rail, hydraulic telescopic rod, guide rod, mounting groove, guide wheel, guide groove, slide bar, spring, and slider. The device uses the hydraulic telescopic rod to drive the movable plate, which in turn moves the guide wheel along the inclined guide groove. This converts axial displacement into synchronous radial expansion of multiple pressure plates, achieving uniform and stable tightening and fixing of the wheel hub from within. Rubber blocks on the surface of the pressure plates effectively protect the wheel hub paint, while their adjustable stroke adapts to wheel hubs of different sizes. A return spring ensures rapid clamping and automatic release. The overall operation is simple and the clamping is reliable, overcoming the shortcomings of traditional clamping methods, such as easy damage to the workpiece and insufficient versatility.
[0013] 2. This utility model, through the setting of a stabilizing rod, allows the vertical displacement of the movable plate during the operation of the drive assembly to synchronously drive the stabilizing rod to slide along the guide structure on the fixed platform. The stabilizing rod forms axial constraints and radial limits on the movement trajectory of the movable plate, effectively suppressing any swaying or shaking that may occur during the movement of the movable plate, thereby ensuring the straightness and stability of its vertical movement, and improving the mechanical stability and operational reliability of the entire device during clamping and releasing. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a schematic diagram of the drive component in this utility model; Figure 4 This is a schematic diagram of the clamping component in this utility model.
[0015] In the diagram: 1. Fixed platform; 2. Support frame; 3. Clamping assembly; 4. Drive assembly; 5. Movable plate; 6. Pressure plate; 7. Slide rail; 8. Stabilizing bar; 9. Hydraulic telescopic bar; 10. Guide rod; 11. Mounting groove; 12. Guide wheel; 13. Reinforcing rib; 14. Guide groove; 15. Slide rod; 16. Spring; 17. Slider. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example 1
[0017] Please see Figures 1-4 One embodiment provided by this utility model: A wheel hub fixing device for automobile wheel hub processing, comprising: A fixed platform 1 is provided, with a support frame 2 fixedly installed at the bottom of the fixed platform 1, and a clamping assembly 3 and a driving assembly 4 respectively installed at the top of the fixed platform 1. The clamping assembly 3 includes several slides 7, which are evenly distributed at equal intervals on the top of the fixed platform 1. A pressure plate 6 is provided on the slide 7, and a guide groove 14 is provided on the pressure plate 6. A reset assembly is provided inside the slide 7. The drive assembly 4 includes a movable plate 5, which is located above the center of the top of the fixed platform 1. A hydraulic telescopic rod 9 is fixedly installed on the bottom of the fixed platform 1, and the drive end of the hydraulic telescopic rod 9 passes through the fixed platform 1 and extends to the top of the fixed platform 1. The drive end of the hydraulic telescopic rod 9 is fixedly connected to the bottom of the movable plate 5. A push assembly is provided on the movable plate 5.
[0018] Furthermore, the reset assembly includes a slide rod 15, which is fixedly installed inside the slide rail 7. A slider 17 is sleeved on the outer wall of the slide rod 15 and is slidably installed on the slide rail 7. The top of the slider 17 is fixedly connected to the bottom of the pressure plate 6. A spring 16 is sleeved on the outer wall of the slide rod 15 on one side of the slider 17. The spring 16 uses its elastic restoring force to automatically and synchronously pull the slider 17 and the pressure plate 6 to reset and retract after the drive assembly 4 is unloaded, thus realizing the rapid release of the clamping mechanism and the stable restoration of the initial position.
[0019] Furthermore, the pressing assembly includes several guide rods 10, which are fixedly installed on the outside of the movable plate 5. The position and number of the guide rods 10 correspond to the pressing plate 6. One end of the guide rod 10 extends into the interior of the guide groove 14 on the pressing plate 6. One end of the guide rod 10 is provided with a mounting groove 11. A guide wheel 12 is rotatably installed inside the mounting groove 11, and the guide wheel 12 rolls in contact with the inner wall of the guide groove 14. This efficiently and with low friction converts the vertical movement of the movable plate 5 into the precise radial displacement of the pressing plate 6, which significantly reduces wear and resistance during the transmission process and ensures the synchronicity and smooth movement of the multiple pressing plates 6 during the extension and retraction process.
[0020] Furthermore, a reinforcing rib 13 is fixedly installed between the guide rod 10 and the top of the movable plate 5, which improves the structural stability of the guide rod 10.
[0021] Furthermore, the slider 17 has a sliding hole that matches the slide rod 15, and the slider 17 is slidably connected to the slide rod 15 through the sliding hole, which provides precise linear guidance for the radial movement of the pressure plate 6 and effectively constrains the movement trajectory of the pressure plate 6.
[0022] Furthermore, the guide groove 14 is inclined, and a rubber block is provided at the outer end of the clamping plate 6. The inclined guide groove 14 can efficiently and accurately convert the vertical movement of the movable plate 5 into the radial displacement of the clamping plate 6, ensuring the synchronous and smooth outward expansion of multiple clamping plates 6. The rubber block at the outer end of the clamping plate 6 provides sufficient friction while avoiding scratches or indentations on the inner wall paint of the hub caused by rigid contact, thus balancing clamping reliability and workpiece surface protection. Example 2
[0023] Reference Figures 1-4This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. Specifically, a number of stabilizing rods 8 are fixedly installed on the bottom of the movable plate 5. The top of the fixed platform 1 is provided with sliding holes corresponding to the position and number of stabilizing rods 8. The fixed platform 1 is slidably connected to the stabilizing rods 8 through the sliding holes, which provides precise axial guidance and radial constraint for the vertical movement of the movable plate 5. This effectively enhances the structural stability and linearity of the movable plate 5 during the movement process, thereby improving the reliability and repeatability of the entire clamping action.
[0024] It should be noted that the controller control circuit can be implemented by those skilled in the art through simple programming, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.
[0025] The working principle of this utility model is as follows: During use, the wheel hub to be processed is placed directly on the top of the fixed platform 1, so that the clamping assembly 3 and the drive assembly 4 are located in the central area of the wheel hub's inner cavity. The hydraulic telescopic rod 9 in the drive assembly 4 is activated, and its driving end pushes the movable plate 5 to move vertically. The movable plate 5 drives the guide wheel 12 to move downwards along the guide groove 14 via the guide rod 10. Under the action of the inclined surface or curved contour of the guide groove 14, the guide wheel 12 applies a radially outward thrust to the clamping plate 6, causing each clamping plate 6 to move outwards synchronously. During the displacement process, the clamping plate 6 drives the slider 17 to slide along the slide rod 15 and compresses the spring 16. As the clamping plate 6 continues to move outwards, its outer surface gradually contacts the inner wall of the wheel hub. Finally, through the coordinated action of multiple clamping plates 6, uniform tightening and fixing are achieved from inside the wheel hub. Rubber blocks are provided on the contact surface between the clamping plate 6 and the wheel hub, which can ensure clamping force while avoiding damage to the wheel hub's paint surface. When the hub needs to be removed, the hydraulic telescopic rod 9 drives the movable plate 5 to move upward and reset. The guide wheel 12 rises accordingly and releases the thrust on the clamping plate 6. At this time, the compressed spring 16 releases its elasticity, and the slider 17 drives all the clamping plates 6 to retract radially in sync, disengaging from the inner wall of the hub, thus allowing the hub to be removed. This device achieves fixation through internal expansion, and the position of the clamping plate 6 is adjustable to accommodate the clamping needs of hubs of different sizes. Compared with the traditional positioning and locking method based on the hub mounting holes, it has the advantages of simple operation, stable clamping, and no damage to the workpiece surface.
[0026] During the operation of the drive assembly 4, the vertical displacement of the movable plate 5 synchronously drives the stabilizer bar 8 to slide along the guide structure on the fixed platform 1. The stabilizer bar 8 forms axial constraints and radial limits on the movement trajectory of the movable plate 5, effectively suppressing the swaying or shaking that the movable plate 5 may produce during the movement, thereby ensuring the straightness and stability of its vertical movement, and improving the mechanical stability and operational reliability of the entire device during the clamping and releasing process.
[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A wheel hub fixing device for automobile wheel hub processing, characterized in that, It includes: A fixed platform (1) is provided with a support frame (2) fixedly installed at the bottom of the fixed platform (1), and a clamping component (3) and a driving component (4) are respectively provided on the top of the fixed platform (1). The clamping assembly (3) includes several slides (7), and the several slides (7) are evenly distributed on the top of the fixed platform (1). A pressure plate (6) is provided on the slide (7), and a guide groove (14) is provided on the pressure plate (6). A reset assembly is provided inside the slide (7). The drive assembly (4) includes a movable plate (5), and the movable plate (5) is located above the center of the top of the fixed platform (1). A hydraulic telescopic rod (9) is fixedly installed at the bottom of the fixed platform (1), and the drive end of the hydraulic telescopic rod (9) passes through the fixed platform (1) and extends to the top of the fixed platform (1). The drive end of the hydraulic telescopic rod (9) is fixedly connected to the bottom of the movable plate (5). A push assembly is provided on the movable plate (5).
2. The wheel hub fixing device for automobile wheel hub processing according to claim 1, characterized in that: Several stabilizing rods (8) are fixedly installed at the bottom of the movable plate (5). The top of the fixed platform (1) is provided with sliding holes corresponding to the position and number of stabilizing rods (8), and the fixed platform (1) is slidably connected to the stabilizing rods (8) through the sliding holes.
3. The wheel hub fixing device for automobile wheel hub processing according to claim 1, characterized in that: The reset assembly includes a slide rod (15), which is fixedly installed inside the slide rail (7). A slider (17) is sleeved on the outer wall of the slide rod (15), and the slider (17) is slidably installed on the slide rail (7). The top of the slider (17) is fixedly connected to the bottom of the pressure plate (6). A spring (16) is sleeved on the outer wall of the slide rod (15) on one side of the slider (17).
4. The wheel hub fixing device for automobile wheel hub processing according to claim 1, characterized in that: The pressing assembly includes several guide rods (10), and several guide rods (10) are fixedly installed on the outside of the movable plate (5). The position and number of the guide rods (10) correspond to the pressing plate (6). One end of the guide rod (10) extends into the inside of the guide groove (14) on the pressing plate (6). One end of the guide rod (10) is provided with an installation groove (11). A guide wheel (12) is rotatably installed inside the installation groove (11), and the guide wheel (12) rolls in contact with the inner wall of the guide groove (14).
5. The wheel hub fixing device for automobile wheel hub processing according to claim 4, characterized in that: A reinforcing rib (13) is fixedly installed between the guide rod (10) and the top of the movable plate (5).
6. The wheel hub fixing device for automobile wheel hub processing according to claim 3, characterized in that: The slider (17) has a sliding hole that matches the sliding rod (15), and the slider (17) is slidably connected to the sliding rod (15) through the sliding hole.
7. The wheel hub fixing device for automobile wheel hub processing according to claim 1, characterized in that: The guide groove (14) is inclined, and a rubber block is provided at the outer end of the clamping plate (6).