A jig device for wheel hub processing

CN224702002UActive Publication Date: 2026-09-01ZHEJIANG YUFENG MASCH TOOL CO LTD
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Patent Information

Application Number
CN202522001705.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2026-09-01
Estimated Expiration
2035-09-17

AI Technical Summary

Technical Problem

[0004]另外,现有夹具大多采用单边夹持或双边对称夹持的方式,由于夹持点较少且受力集中,难以对轮毂外侧形成全面、均衡的固定,且调节范围有限,在面对大尺寸、薄壁型铝合金轮毂时,夹具难以实现贴合夹持,从而缺乏对不同外侧尺寸轮毂的适配性,进而降低了夹持稳定性和轮毂加工过程中的精准性

Benefits of technology

[0012]1、本实用新型通过设置定位机构和夹持机构;定位机构能够精准地对轮毂的中心孔进行定位,解决了轮毂的中心孔在加工过程中容易出现位置偏差的问题,从而提高了加工的精度和确保了轮毂在加工时不会产生位移,进而提高了生产效率和生产稳定性。当轮毂定位后,然后通过夹持机构将轮毂外侧进行夹持,解决了轮毂在加工时可能因固定不牢而晃动的问题,从而提高了加工过程中的稳定性,进而避免因晃动导致的加工误差,提升了加工质量。

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Abstract

This utility model discloses a jig device for wheel hub processing, relating to the field of wheel hub processing technology. It includes: a base; several support columns symmetrically arranged on the top of the base; a worktable disposed on the common top of the support columns; a positioning mechanism disposed on the top of the base and located in the middle of the worktable; clamping mechanisms symmetrically arranged on the top and bottom sides of the worktable; and a control panel installed at one end of the worktable. This utility model, by setting up a positioning mechanism and a clamping mechanism, addresses the problem of positional deviation of the wheel hub's center hole during processing. The positioning mechanism accurately positions the center hole, improving processing accuracy and ensuring no displacement of the wheel hub during processing, thereby increasing production efficiency and stability. The clamping mechanism clamps the outer side of the wheel hub, preventing insecure fixing and wobbling during processing, avoiding processing errors caused by wobbling, and improving processing quality.
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Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing technology, and more specifically, to a jig device for wheel hub processing. Background Technology

[0002] The wheel hub is a key metal component in a car's chassis system that connects the tires to the axle. It is typically made of materials such as aluminum alloy or steel and consists of two parts: the rim and the spokes. The rim, as the outer ring structure, directly engages with the inner tire bead to secure the tire and prevent it from slipping off during driving. The spokes are the supporting structure connecting the rim to the center bore of the hub. The center bore is connected to the car's half-shaft or axle via bearings. The hub bears the entire weight of the vehicle body, passengers, and cargo, and converts the engine's power output into tire rotational force to drive the car. Common types include low-cost, impact-resistant steel wheels, often used in family cars, and lightweight, heat-dissipating, and aesthetically pleasing aluminum alloy wheels, often used in mid-to-high-end or sports cars. Different wheel types require clamping devices for positioning and fixing during processing to prevent deviations and improve the quality of wheel manufacturing.

[0003] While existing clamping devices can clamp and fix wheel hubs for processing, some wheel hub clamps use fixed-size positioning structures during the positioning process. These clamps are only suitable for wheel hubs with limited center hole sizes or a very narrow range of compatibility. When dealing with wheel hubs of different models and specifications, the entire positioning assembly needs to be changed frequently, which increases operation time. Furthermore, deviations may occur during the replacement process, leading to fluctuations in subsequent processing accuracy, thereby reducing production efficiency and stability.

[0004] In addition, most existing clamps adopt single-sided or double-sided symmetrical clamping. Due to the limited number of clamping points and the concentrated force, it is difficult to form a comprehensive and balanced fixation on the outer side of the wheel hub. Moreover, the adjustment range is limited. When dealing with large-sized, thin-walled aluminum alloy wheels, the clamps are difficult to achieve a close fit, thus lacking adaptability to wheel hubs with different outer dimensions, which in turn reduces clamping stability and accuracy in the wheel hub processing.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a jig device for wheel hub processing to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A jig device for wheel hub processing includes: a base; a plurality of support columns symmetrically arranged on the top of the base; a worktable disposed on the common top of the plurality of support columns; a positioning mechanism disposed on the top of the base and located in the middle of the worktable; clamping mechanisms symmetrically disposed on the top and bottom sides of the worktable; and a control panel mounted on one end of the worktable. A positioning hole cooperating with the positioning mechanism is provided in the middle of the worktable.

[0009] Furthermore, to improve machining accuracy and ensure the wheel hub does not shift during processing, thereby improving production efficiency and stability, the positioning mechanism includes a servo motor mounted on the top of the base. The output end of the servo motor is connected to a rotating shaft. A positioning platform is fitted onto the outer side of the bottom of the rotating shaft. A turntable is connected to the top of the rotating shaft through the positioning platform. Several first limiting grooves are formed on the turntable. Movable columns are installed inside the first limiting grooves. A movable plate is connected to the top of the movable column, close to the wheel hub body. Several telescopic guide columns arranged linearly are arranged on one side of the movable plate. Compression springs are fitted onto the tops of the telescopic guide columns. Positioning plates are connected to the tops of the telescopic guide columns and one end of the compression springs. Several anti-slip columns are installed on the positioning plate. A pressure sensor is installed on the positioning plate, and a slide rail is installed at the bottom of the movable plate. The movable plate has an L-shaped structure. The anti-slip columns are staggered and have a mesh structure.

[0010] Furthermore, to improve stability during processing and avoid processing errors caused by shaking, thereby improving processing quality, the clamping mechanism includes an electric telescopic rod located at the bottom of the worktable. One end of the electric telescopic rod has a telescopic rod, and both the top of the telescopic rod and the other end of the electric telescopic rod have a first end block. A first connecting rod is connected to one side of the first end block, and a second connecting rod is located at the top of the first connecting rod. The second connecting rod is connected to a second end block, and a driving block is located on one side of the second end block. A connecting rod is located at the bottom of the first connecting rod, and the connecting rod is connected to a third connecting rod. The third connecting rod is connected to a third end block, and a sleeve post is located on one side of the third end block. A clamping plate is located on one side of the driving block, and several clamping blocks arranged in a linear direction are located on the side of the clamping plate near the wheel hub body. Several connecting posts are located on the other side of the driving block, and one end of each connecting post is connected to a support plate located on one side wall of the driving block. The first connecting rod has an L-shaped structure, and its two ends are connected to the first end block and the second connecting rod via movable shafts. The second connecting rod is connected to the second end block via a movable shaft, and the connecting rod is connected to the third connecting rod via a movable shaft. The third connecting rod is also connected to the third end block via a movable shaft. The clamping plate has an arc-shaped structure, and the arc of the clamping plate is the same as the outer arc of the wheel hub body. A fourth end block is provided at the bottom of one end of the worktable, and the middle part of the first connecting rod is connected to the fourth end block via a movable shaft. A limiting post that mates with the sleeve post is provided in the middle of one side of the worktable, and a limiting block is provided at the bottom of the limiting post. A second limiting groove that mates with the drive block is provided at the top of one side of the worktable.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model incorporates a positioning mechanism and a clamping mechanism. The positioning mechanism accurately positions the center hole of the wheel hub, solving the problem of potential positional deviations during machining. This improves machining accuracy and ensures the wheel hub does not shift during processing, thereby increasing production efficiency and stability. After the wheel hub is positioned, the clamping mechanism clamps the outer side of the hub, preventing it from wobbling due to insecure fixing during machining. This improves stability during machining, avoids machining errors caused by wobbling, and enhances machining quality.

[0013] 2. This utility model, by setting up a positioning mechanism, through the coordinated work of components such as servo motor, rotating shaft, turntable, movable plate, telescopic guide column, compression spring, positioning plate and anti-slip column, quickly and accurately places the wheel hub into the position required for processing, ensuring that the wheel hub will not be displaced during processing, thereby guaranteeing the accuracy of processing.

[0014] 3. This utility model, by setting up a clamping mechanism, electric telescopic rod, multi-link structure and clamping plate and other components, can firmly fix the wheel hub, and the arc structure of the clamping plate matches the outer arc of the wheel hub, and in conjunction with the clamping long block, thereby increasing the clamping area of ​​the wheel hub and improving the stability of clamping the outer side of the wheel hub. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a jig device for wheel hub processing according to an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of a wheel hub machining fixture device according to an embodiment of the present utility model;

[0018] Figure 3 yes Figure 2 Enlarged view of a portion at point A;

[0019] Figure 4 This is a partial structural schematic diagram of a jig device for wheel hub processing according to an embodiment of the present utility model;

[0020] Figure 5 yes Figure 4 A magnified view of section B.

[0021] In the picture:

[0022] 1. Base; 2. Support column; 3. Worktable; 4. Positioning mechanism; 401. Servo motor; 402. Rotary shaft; 403. Positioning platform; 404. Turntable; 405. First limit groove; 406. Movable column; 407. Movable plate; 408. Telescopic guide column; 409. Compression spring; 410. Positioning plate; 411. Anti-slip column; 412. Pressure sensor; 413. Slide rail; 5. Clamping mechanism; 501. Electric telescopic rod; 502. Telescopic rod; 503. 504. First end block; 505. First connecting rod; 506. Second connecting rod; 507. Second end block; 508. Drive block; 509. Connecting rod; 510. Third connecting rod; 511. Third end block; 512. Sleeve post; 513. Clamping plate; 514. Clamping long block; 515. Connecting post; 516. Support plate; 517. Fourth end block; 518. Limiting post; 519. Limiting block; 510. Second limiting groove; 6. Control panel; 7. Positioning hole; 8. Wheel hub body. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a jig device for wheel hub processing is provided.

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-5 As shown, a jig device for wheel hub processing according to an embodiment of the present invention includes: a base 1; a plurality of support columns 2 symmetrically arranged on the top of the base 1; a worktable 3 disposed on the common top of the plurality of support columns 2; a positioning mechanism 4 disposed on the top of the base 1 and located in the middle of the worktable 3; clamping mechanisms 5 symmetrically disposed on the top and bottom sides of the worktable 3; and a control panel 6 installed at one end of the worktable 3. A positioning hole 7 cooperating with the positioning mechanism 4 is provided in the middle of the worktable 3.

[0026] By employing the above-described technical solution, this utility model incorporates a positioning mechanism 4 and a clamping mechanism 5. The positioning mechanism 4 accurately positions the center hole of the wheel hub, solving the problem of potential positional deviations during machining. This improves machining accuracy and ensures the wheel hub does not shift during processing, thereby enhancing production efficiency and stability. After the wheel hub is positioned, the clamping mechanism 5 clamps the outer side of the wheel hub, resolving the issue of potential wobbling due to insecure fixing during machining. This improves stability during machining, avoids machining errors caused by wobbling, and enhances machining quality.

[0027] Furthermore, in practical applications, a control panel 6 is installed at one end of the workbench 3. This control panel 6 is electrically connected to the positioning mechanism 4 and the clamping mechanism 5. The operator can input relevant data through the human-machine interface of the control panel 6, thereby enabling the positioning mechanism 4 and the clamping mechanism 5 to position and fix the center hole and outer side of the wheel hub.

[0028] In one embodiment, the positioning mechanism 4 includes a servo motor 401 mounted on the top of the base 1. The output end of the servo motor 401 is connected to a rotating shaft 402. A positioning platform 403 is fitted onto the outer side of the bottom of the rotating shaft 402. A turntable 404 is connected to the top of the rotating shaft 402 through the positioning platform 403. The turntable 404 has several first limiting grooves 405. A movable column 406 is installed inside each first limiting groove 405. A movable plate 407 is connected to the top of the movable column 406 and near the hub body 8. Several telescopic guide columns 408 arranged linearly are provided on one side of the movable plate 407. A compression spring 409 is fitted onto the top of each telescopic guide column 408. A positioning plate 410 is connected to the top of each telescopic guide column 408 and one end of each compression spring 409. Several anti-slip columns 411 are provided on the positioning plate 410. A pressure sensor 412 is provided on the positioning plate 410. A slide rail 413 is provided at the bottom of the movable plate 407. The movable plate 407 has an L-shaped structure. Several anti-skid posts 411 are staggered and have a mesh structure, which improves the processing accuracy and ensures that the wheel hub will not be displaced during processing, thereby improving production efficiency and production stability.

[0029] Working principle of positioning mechanism 4: When the center hole of the hub body 8 is located in the middle of the worktable and outside the positioning mechanism 4, the servo motor 401 on the top of the control panel 6 controls the base 1 to start. The output end of the servo motor 401 drives the connected rotating shaft 402 to rotate. The rotating shaft 402 rotates stably on the top of the positioning platform 403 sleeved on the bottom outside, and the bottom of the positioning platform 403 is stabilized by the bracket. At the same time, the top of the positioning platform 403 drives the turntable 404 to rotate. Several first limiting grooves 405 on the turntable 404 rotate outward, pushing the internal movable column 406 to expand outward. The movable column 406 drives the L-shaped movable plate 407 connected to the top of the hub body 8 to expand outward. Several extension grooves on one side of the movable plate 407 are arranged in a linear direction. The telescopic guide post 408 moves along with the guide post, and the slide rail 413 at the bottom of the movable plate 407 limits its movement to prevent it from falling off. The compression spring 409 sleeved on the top of the telescopic guide post 408 deforms, causing the positioning plate 410 connected to the top of the telescopic guide post 408 to contact the wheel hub body 8. Several anti-slip posts 411 on the positioning plate 410, which are staggered and have a mesh structure, increase the friction with the wheel hub body 8 to prevent slippage. At the same time, the pressure sensor 412 on the positioning plate 410 can monitor the pressure between the positioning plate 410 and the wheel hub body 8 in real time during the positioning process and feed the pressure back to the control panel 6 to ensure that the positioning pressure is within a suitable range. This avoids damage to the wheel hub body 8 due to excessive pressure or insecure positioning due to insufficient pressure, thereby achieving accurate positioning of the wheel hub body 8.

[0030] Conversely, when it is not necessary to position the center hole of the hub body 8, the servo motor 401 on the top of the base 1 is reversed by the control panel 6, which drives the turntable 404 to reverse. Several first limit grooves 405 on the turntable 404 rotate inward, pushing the internal movable column 406 to retract inward. The movable column 406 drives the L-shaped movable plate 407 connected to the top of the hub body 8 to retract inward, thereby resetting the positioning plate 410.

[0031] In one embodiment, the clamping mechanism 5 includes an electric telescopic rod 501 disposed at the bottom of the workbench 3. One end of the electric telescopic rod 501 has a telescopic rod 502. A first end block 503 is disposed at the top of the telescopic rod 502 and at the other end of the electric telescopic rod 501. A first connecting rod 504 is connected to one side of the first end block 503. A second connecting rod 505 is disposed at the top of the first connecting rod 504. The second connecting rod 505 is connected to a second end block 506. A drive block 507 is disposed on one side of the second end block 506. A connecting rod 508 is provided at the bottom of the first connecting rod 504. The connecting rod 508 is connected to a third connecting rod 509. The third connecting rod 509 is connected to a third end block 510. A sleeve post 511 is provided on one side of the third end block 510. A clamping plate 512 is provided on one side of the drive block 507. Several clamping blocks 513 arranged in a linear direction are provided on the side of the clamping plate 512 near the wheel hub body 8. Several connecting posts 514 are provided on the other side of the drive block 507. One end of the connecting post 514 is connected to a support plate 515 located on one side wall of the drive block 507. The first connecting rod 504 has an L-shaped structure. The two ends of the first connecting rod 504 are connected to the first end block 503 and the second connecting rod 505 through a movable shaft. The second connecting rod 505 is connected to the second end block 506 through a movable shaft. The connecting rod 508 is connected to the third connecting rod 509 through a movable shaft. The third connecting rod 509 is also connected to the third end block 510 through a movable shaft. The clamping plate 512 has an arc-shaped structure, and the arc of the clamping plate 512 is the same as the outer arc of the wheel hub body 8. A fourth end block 516 is provided at the bottom of one end of the worktable 3, and the middle part of the first connecting rod 504 is connected to the fourth end block 516 through a movable shaft. A limiting post 517 that cooperates with the sleeve post 511 is provided in the middle of one side of the worktable 3, and a limiting block 518 is provided at the bottom of the limiting post 517; a second limiting groove 519 that cooperates with the drive block 507 is provided at the top of one side of the worktable 3, thereby improving the stability during the processing, avoiding processing errors caused by shaking, and improving the processing quality.

[0032] Working principle of clamping mechanism 5: After the center hole of the hub body 8 is positioned, the two electric telescopic rods 501 on both sides of the bottom of the workbench 3 are started simultaneously by the control panel 6. The telescopic rod 502 at one end of the electric telescopic rod 501 extends and retracts, driving the push-forward movement of the first end block 503 at both ends. This causes the first connecting rod 504, which is connected to the first end block 503 by a movable shaft and is L-shaped, to rotate around the movable shaft of the fourth end block 516 at the bottom of one end of the workbench 3. The rotation of the first connecting rod 504 drives the second connecting rod 505 connected to the top by a movable shaft. The second connecting rod 505 then drives the second end block 506 and the drive block 507 on one side, which are connected to it by a movable shaft. At the same time, the bottom of the first connecting rod 504 drives the third connecting rod 509 through the connecting rod 508. The rod 509 rotates around the movable axis of the third end block 510. The sleeve 511 on one side of the third end block 510 moves along the limiting post 517 with the limiting block 518 in the middle of one side of the worktable 3. When the drive block 507 moves, the clamping plate 512 on one side of the drive block 507, which is arc-shaped and has the same arc as the outer arc of the wheel hub body 8, moves forward. The clamping blocks 513 arranged linearly on the clamping plate 512 gradually approach the wheel hub body 8 for clamping. The connecting post 514 and the support plate 515 on the other side of the drive block 507 support the drive block 507. The drive block 507 moves in the second limiting groove 519 at the top of one side of the worktable 3 to maintain stability, so as to clamp and fix the outer circumference of the wheel hub body 8 and provide stability for subsequent processing.

[0033] Conversely, when the outer side of the wheel hub body 8 is released from clamping, the two electric telescopic rods 501 are activated simultaneously, causing the telescopic rod 502 to retract, and causing the second connecting rod 505 and the drive block 507 to move backward simultaneously, thus completing the reset.

[0034] It should be noted that the two electric telescopic rods 501 are interconnected through a synchronous interlocking mechanism, which can be linked by the PLC control system to ensure that the output shafts of the two electric telescopic rods 501 extend and retract synchronously, thus ensuring that the clamping mechanism 5 moves the components synchronously during the extension and retraction process. The synchronous interlocking mechanism is existing technology and will not be described in detail here.

[0035] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0036] In practical application, the worker places the wheel hub in the middle of the workbench 3. The control panel 6 controls the servo motor 401 of the positioning mechanism 4 to start rotating forward. The rotating shaft 402 drives the turntable 404 to rotate. The first limit groove 405 pushes the movable column 406 outward in sync. The L-shaped movable plate 407, along with the telescopic guide column 408 and the positioning plate 410, opens radially. The anti-slip column 411 sticks to the wall of the center hole. The pressure sensor 412 sends the pressure value back to the control panel 6 in real time. When the set value is reached, the control panel 6 controls the servo motor 401 to stop rotating. The center hole of the wheel hub is positioned. The working principle of the positioning mechanism 4 is as described above. Once the center hole of the wheel hub is positioned, the two electric telescopic rods 501 of the clamping mechanism 5 are simultaneously extended via the control panel 6. The telescopic rod 502 pushes forward, and the first end block 503 drives the first connecting rod 504 to move downward around the fourth end block 516. Then, the second connecting rod 505 moves the drive block 507 forward along the second limiting groove 519. The clamping plate 512 and the clamping long block 513 fit together and clamp the outer circumference of the wheel hub. The connecting column 514, the support plate 515, and the sleeve column 511 prevent the drive block 507 from falling off and ensure the stability of the operation. As shown above, once the wheel hub is positioned and clamped, it can proceed to the subsequent drilling or turning process. After the wheel hub has completed its subsequent processing, the two electric telescopic rods 501 are retracted simultaneously via the control panel 6, the clamping plate 512 is released from the outer circumference of the wheel hub, the control panel 6 controls the servo motor 401 to reverse, the turntable 404 retracts the movable column 406, the positioning plate 410 disengages from the center hole, and then the staff removes the wheel hub through the equipment, thus completing the clamping and positioning of the wheel hub.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A jig device for wheel hub processing, characterized in that, include: Base (1); Several support columns (2) are symmetrically arranged on the top of the base (1); A workbench (3) is disposed on the common top of several of the support columns (2); The positioning mechanism (4) is located on the top of the base (1) and in the middle of the worktable (3); Clamping mechanisms (5) are symmetrically arranged on the top and bottom sides of the worktable (3); A control panel (6) is installed at one end of the workbench (3).

2. The jig device for wheel hub processing according to claim 1, characterized in that, The workbench (3) has a positioning hole (7) in the middle that cooperates with the positioning mechanism (4).

3. The jig device for wheel hub processing according to claim 1, characterized in that, The positioning mechanism (4) includes a servo motor (401) mounted on the top of the base (1). The output end of the servo motor (401) is connected to a rotating shaft (402). A positioning platform (403) is fitted on the outer side of the bottom of the rotating shaft (402). A turntable (404) is connected to the top of the rotating shaft (402) through the positioning platform (403). A plurality of first limiting grooves (405) are provided on the turntable (404). Movable columns are provided inside the first limiting grooves (405). 406), the top of the movable column (406) and near the hub body is connected to a movable plate (407), a plurality of telescopic guide columns (408) arranged in a linear direction are provided on one side of the movable plate (407), a compression spring (409) is sleeved on the top of the telescopic guide column (408), a positioning plate (410) is connected to the top of the telescopic guide column (408) and one end of the compression spring (409), and a plurality of anti-slip columns (411) are provided on the positioning plate (410); A pressure sensor (412) is provided on the positioning plate (410), and a slide rail (413) is provided at the bottom of the movable plate (407).

4. The jig device for wheel hub processing according to claim 3, characterized in that, The movable plate (407) has an L-shaped structure.

5. A jig device for wheel hub processing according to claim 4, characterized in that, The anti-slip posts (411) are staggered and have a mesh structure.

6. The jig device for wheel hub processing according to claim 1, characterized in that, The clamping mechanism (5) includes an electric telescopic rod (501) disposed at the bottom of the workbench (3). One end of the electric telescopic rod (501) is provided with a telescopic rod (502). The top of the telescopic rod (502) and the other end of the electric telescopic rod (501) are both provided with a first end block (503). A first connecting rod (504) is connected to one side of the first end block (503). A second connecting rod (505) is disposed at the top of the first connecting rod (504). The second connecting rod (505) is connected to a second end block (506). A drive block (507) is disposed on one side of the second end block (506). The first connecting rod (504) is provided with a connecting rod (508) at its bottom. The connecting rod (508) is connected to a third connecting rod (509). The third connecting rod (509) is connected to a third end block (510). A sleeve post (511) is provided on one side of the third end block (510). A clamping plate (512) is provided on one side of the drive block (507). A number of clamping blocks (513) arranged in a linear direction are provided on the side of the clamping plate (512) near the hub body. A number of connecting posts (514) are provided on the other side of the drive block (507). One end of the connecting post (514) is connected to a support plate (515) located on one side wall of the drive block (507).

7. A jig device for wheel hub processing according to claim 6, characterized in that, The first connecting rod (504) has an L-shaped structure, and the two ends of the first connecting rod (504) are connected to the first end block (503) and the second connecting rod (505) through movable shafts; The second connecting rod (505) is connected to the second end block (506) via a movable shaft, the connecting rod (508) is connected to the third connecting rod (509) via a movable shaft, and the third connecting rod (509) is connected to the third end block (510) via a movable shaft.

8. A jig device for wheel hub processing according to claim 7, characterized in that, The clamping plate (512) has an arc-shaped structure, and the arc of the clamping plate (512) is the same as the outer arc of the wheel hub body.

9. A jig device for wheel hub processing according to claim 8, characterized in that, The workbench (3) has a fourth end block (516) at one end of its bottom, and the middle part of the first connecting rod (504) is connected to the fourth end block (516) via a movable shaft.

10. A jig device for wheel hub processing according to claim 9, characterized in that, A limiting post (517) that cooperates with the sleeve post (511) is provided in the middle of one side of the workbench (3), and a limiting block (518) is provided at the bottom of the limiting post (517). The top side of the workbench (3) is provided with a second limiting groove (519) that cooperates with the drive block (507).