Hub chuck for aluminum alloy hub machining

Abstract

The utility model relates to the technical field of hub machining, and one embodiment of the utility model provides a hub chuck for aluminum alloy hub machining, the hub chuck comprises a chuck, the back of the chuck is provided with a rotating shaft, a driving clamping assembly is arranged on the chuck, and a sliding limiting assembly is arranged on the chuck; the driving clamping assembly comprises a driving groove, a mounting disc is arranged in the driving groove, vortex lines are arranged on the front face of the mounting disc, and the vortex lines are meshed with the meshing lines. By means of the technical scheme, the problems that in the prior art, a traditional hub chuck exposes a plurality of problems in actual application, clamping structures of part of chucks are not reasonable enough in design, accurate positioning and stable clamping of a hub are difficult to achieve, the assembly performance and use safety of the hub are affected in the machining process, and the machining cost is reduced are solved. The technical problems that in the prior art, the roughness of a machined surface is possibly increased, and clamping jaws of a fixed structure are difficult to adapt to hubs of different shapes and sizes, so that the clamping mode is single are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of wheel hub processing technology, and more specifically, to a wheel hub chuck for processing aluminum alloy wheel hubs. Background Technology

[0002] In the field of aluminum alloy wheel manufacturing, wheel chucks are crucial tooling fixtures. Their main function is to securely clamp the wheel for a series of processing operations such as cutting, grinding, and drilling. The performance of the wheel chuck directly affects the precision, quality, and production efficiency of wheel processing.

[0003] Traditional wheel chucks have revealed numerous problems in practical applications. Some chucks have poorly designed clamping structures, making it difficult to achieve precise positioning and stable clamping of the wheel hub. During processing, the wheel hub is prone to wobbling and displacement. This not only reduces machining accuracy and causes dimensional deviations to exceed allowable limits, affecting assembly performance and safety, but also increases surface roughness, impacting the wheel hub's appearance. Furthermore, the fixed jaw structure is difficult to adapt to wheel hubs of different shapes and sizes, resulting in a limited clamping method and poor operational flexibility. This makes it difficult to meet the processing needs of aluminum alloy wheel hubs of different specifications and shapes. When changing the wheel hub model, significant time and effort are often required to adjust or replace the chuck, undoubtedly reducing production efficiency and increasing production costs.

[0004] In addition, traditional chucks are prone to loosening and increased gaps due to friction and wear between components during long-term use, which shortens the service life of the chuck and increases maintenance costs. Moreover, the complex structure of some chucks makes maintenance and upkeep difficult, which also affects the continuity and stability of production to some extent.

[0005] Therefore, in order to overcome the shortcomings of traditional wheel chucks and improve the processing quality and production efficiency of aluminum alloy wheels, it is of great practical significance to develop a new type of wheel chuck for processing aluminum alloy wheels. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a wheel chuck for machining aluminum alloy wheels, which solves many problems exposed by traditional wheel chucks in practical applications. Some chucks have unreasonable clamping structure designs, making it difficult to achieve accurate positioning and stable clamping of the wheel hub. During the machining process, the wheel hub is prone to shaking and displacement, which not only reduces machining accuracy and causes the wheel hub's dimensional deviation to exceed the allowable range, affecting the wheel hub's assembly performance and safety of use, but may also increase the surface roughness of the machined surface. Moreover, the fixed structure of the chuck jaws is difficult to adapt to wheel hubs of different shapes and sizes, resulting in a relatively simple clamping method.

[0007] According to one aspect, at least one embodiment of this disclosure provides a wheel chuck for machining aluminum alloy wheel hubs, comprising:

[0008] A chuck, wherein a rotating shaft is provided on the back of the chuck;

[0009] A drive clamping assembly is disposed on the chuck;

[0010] A sliding limit component is disposed on the chuck;

[0011] The drive clamping assembly includes a drive groove on the chuck, a sliding jaw within the drive groove, and meshing patterns on the back of the sliding jaw. A drive disc is mounted on the rotating shaft, a positioning groove on the front of the drive disc, and a mounting disc within the positioning groove. The mounting disc has a spiral pattern on its front, which meshes with the meshing patterns. A fixing arm is located on the side wall of the sliding jaw, and a positioning groove is located inside the fixing arm. A switching groove is located on the inner side wall of the sliding jaw, and a switching shaft is located inside the switching groove. A switching sleeve is mounted on the switching shaft. A positioning frame is located on the outer side wall of the switching sleeve. A wheel hub positioning frame is located on the side wall of the positioning frame. There are several wheel hub positioning frames, each with a different side wall structure. A positioning track is located on the side wall of the switching groove, and a positioning block is located within the positioning track. A mounting bracket is located on the positioning block, and the mounting bracket is embedded within the wheel hub positioning frame.

[0012] As a further technical solution, a drive bar is provided on the front side of the drive disk, and both the drive disk and the mounting disk have drive holes, with the rotating shaft inserted into the drive holes.

[0013] As a further technical solution, the sliding limiting component includes an embedded sliding groove, which is opened on opposite sides inside the drive groove, and embedded sliding strips are provided on opposite sides of the sliding claw, with the embedded sliding strips embedded inside the embedded sliding groove.

[0014] As a further technical solution, the side wall of the embedded slide is provided with a wheel groove, a sliding wheel is provided in the wheel groove, the sliding wheel is embedded in the wheel groove, a part of the sliding wheel extends out of the sliding wheel, and the sliding wheel fits into the embedded slide groove.

[0015] As a further technical solution, a limiting ring is provided on the rotating shaft, and the limiting ring is in contact with the side wall of the drive disk.

[0016] As a further technical solution, a bearing is fitted on the rotating shaft, and the rotating shaft is inserted into the drive hole through the bearing.

[0017] As a further technical solution, the inner wall of the slot is provided with an anti-slip pad, and both the anti-slip pad and the slot are arc-shaped structures.

[0018] As a further technical solution, the meshing pattern is an arc-shaped structure, and the meshing pattern matches the pattern of the vortex pattern.

[0019] As a further technical solution, the chuck is provided with a clearance groove inside, and a contact pad is provided on the side wall of the clearance groove. The contact pad has an annular structure.

[0020] The beneficial effects of the embodiments disclosed herein are as follows:

[0021] 1. In this disclosure, the drive clamping assembly employs a combination of spiral and meshing patterns, enabling the sliding jaws to perform stable and precise linear motion within the drive groove. When the rotating shaft drives the drive disc to rotate, this special meshing structure ensures that the sliding jaws clamp the wheel hub synchronously and evenly. Simultaneously, the design of the embedded groove, embedded slide bar, and sliding wheel in the sliding limit assembly further restricts the movement direction of the sliding jaws, reducing wobbling and deviation during sliding. Furthermore, the switching sleeve within the switching groove can rotate, allowing for clamping different wheel hub outer walls according to different wheel hub positioning frames. Additionally, the positioning block can be pushed within the positioning track, and the wheel hub positioning frame can be positioned by the positioning bracket, enabling reasonable clamping and positioning for different specifications and wheel hub textures.

[0022] 2. The structural design of the drive disc and mounting disc in this disclosure allows for convenient control of the opening and closing of the sliding jaws by rotating the drive disc via a rotating shaft, enabling rapid clamping and releasing of the wheel hub. This simple and effective driving method improves operational convenience and efficiency. Moreover, due to the relatively reasonable structural design of the chuck, it can adapt to the processing needs of aluminum alloy wheel hubs of different specifications and sizes by adjusting the rotation angle of the drive disc and the position of the sliding jaws. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0024] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0025] Figure 2 This is a cross-sectional view of the chuck disclosed herein;

[0026] Figure 3 This is a side view of the drive disc of this disclosure;

[0027] Figure 4 This is a side view of the sliding jaw of this disclosure;

[0028] Figure 5 This is a cross-sectional view of the sliding jaw of this disclosure;

[0029] In the diagram: 1. Chuck; 2. Rotary shaft; 3. Drive clamping assembly; 3-1. Drive groove; 3-2. Sliding jaw; 3-3. Engaging pattern; 3-4. Drive disc; 3-5. Positioning groove; 3-6. Mounting disc; 3-7. Swirl pattern; 3-8. Drive bar; 3-9. Drive hole; 3-10. Positioning groove; 3-11. Switching groove; 3-12. Switching shaft; 3-13. Switching sleeve; 3-14. Positioning frame; 3-15. Wheel hub positioning frame; 3-16. Positioning rail; 3-17. Positioning block; 3-18. Clamping bracket; 4. Sliding limit assembly; 4-1. Embedded sliding groove; 4-2. Embedded sliding bar; 4-3. Wheel groove; 4-4. Sliding wheel; 5. Limiting ring; 6. Bearing; 7. Fixed clamping arm; 8. Contact pad; 9. Anti-slip pad; 10. Clearance groove. Detailed Implementation

[0030] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0031] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0033] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] like Figures 1-5 As shown, a wheel chuck for machining aluminum alloy wheel hubs according to this disclosure is provided, comprising:

[0037] Chuck 1, with a rotating shaft 2 on its back;

[0038] Drive clamping component 3, which is mounted on chuck 1;

[0039] Sliding limit component 4 is mounted on chuck 1;

[0040] The drive clamping assembly 3 includes a drive groove 3-1, which is formed on the chuck 1. A sliding jaw 3-2 is provided inside the drive groove 3-1. The back of the sliding jaw 3-2 is provided with engagement grooves 3-3. A drive disk 3-4 is mounted on the rotating shaft 2. A positioning groove 3-5 is provided on the front of the drive disk 3-4. A mounting disk 3-6 is provided inside the positioning groove 3-5. A spiral pattern 3-7 is provided on the front of the mounting disk 3-6. The spiral pattern 3-7 engages with the engagement grooves 3-3. A fixing arm 7 is provided on the side wall of the sliding jaw 3-2. A locking groove 3-10 is provided inside the fixing arm 7. The inner side wall of the sliding jaw 3-2 is provided with... The switching slot 3-11 has a switching shaft 3-12 inside. A switching sleeve 3-13 is fitted on the switching shaft 3-12. A positioning frame 3-14 is provided on the outer wall of the switching sleeve 3-13. A wheel hub positioning frame 3-15 is provided on the side wall of the positioning frame 3-14. There are several wheel hub positioning frames 3-15, and the side wall structures of the multiple wheel hub positioning frames 3-15 are different. A positioning track 3-16 is provided on the side wall of the switching slot 3-11. A positioning block 3-17 is provided in the positioning track 3-16. A bracket 3-18 is provided on the positioning block 3-17. The bracket 3-18 is embedded in the wheel hub positioning frame 3-15.

[0041] In some examples, a drive disk 3-4 is mounted on the rotating shaft 2 to ensure that the drive disk 3-4 can rotate flexibly. A swirl pattern 3-7 is machined on the front of the mounting disk 3-6. The mounting disk 3-6 is installed into the positioning groove 3-5 of the drive disk 3-4, so that the swirl pattern 3-7 engages with the meshing pattern 3-3 on the back of the sliding claw 3-2. When the rotating shaft 2 drives the drive disk 3-4 to rotate, the sliding claw 3-2 moves linearly in the drive groove 3-1 through the cooperation of the swirl pattern 3-7 and the meshing pattern 3-3, thereby achieving the clamping or releasing of the wheel hub. The switching sleeve 3-13 in the switching groove 3-11 can rotate on its own and can clamp different outer walls of the wheel hub according to different wheel hub positioning frames 3-15. After being pushed in the positioning track 3-16 by the positioning block 3-17, the wheel hub positioning frame 3-15 is positioned by the frame 3-18.

[0042] An insert groove 4-1 is machined on both sides inside the drive groove 3-1. An insert slide bar 4-2 is installed on both sides of the sliding claw 3-2, so that the insert slide bar 4-2 is embedded in the insert groove 4-1, which plays a guiding and limiting role for the sliding claw 3-2, ensuring that the sliding claw 3-2 can only move in a straight line within the drive groove 3-1.

[0043] like Figures 1-5 As shown, in this embodiment, a drive bar 3-8 is provided on the front of the drive disk 3-4, and both the drive disk 3-4 and the mounting disk 3-6 have drive holes 3-9. The rotating shaft 2 is inserted into the drive hole 3-9, and a bearing 6 is fitted on the rotating shaft 2. The rotating shaft 2 is inserted into the drive hole 3-9 through the bearing 6.

[0044] In some examples, a drive bar 3-8 is provided on the front of the drive disk 3-4, and drive holes 3-9 are machined on the drive disk 3-4 and the mounting disk 3-6 so that the rotating shaft 2 can be inserted into the drive hole 3-9 through the bearing 6, ensuring smooth rotation.

[0045] For example, such as Figure 4 As shown, the side wall of the mounting slide 4-2 is provided with a wheel groove 4-3, and a sliding wheel 4-4 is provided in the wheel groove 4-3. The sliding wheel 4-4 is fitted into the wheel groove 4-3, a part of the sliding wheel 4-4 extends out of the sliding wheel 4-4, and the sliding wheel 4-4 is in contact with the mounting groove 4-1.

[0046] In some examples, a groove 4-3 is machined into the side wall of the mounting slide 4-2, and the sliding wheel 4-4 is installed into the groove 4-3 so that the sliding wheel 4-4 is fitted into the groove 4-3, and a part of the sliding wheel 4-4 extends out of the groove 4-3 and fits against the mounting groove 4-1. This can reduce the friction of the sliding claw 3-2 during the sliding process and improve its smoothness of sliding.

[0047] For example, such as Figure 2 As shown, a limiting ring 5 is provided on the rotating shaft 2, and the limiting ring 5 is in contact with the side wall of the drive disk 3-4.

[0048] In some examples, a limiting ring 5 is installed on the rotating shaft 2 so that it fits against the side wall of the drive disk 3-4 to prevent the drive disk 3-4 from moving axially.

[0049] For example, such as Figure 4 As shown, the side wall of the sliding claw 3-2 is provided with a fixed claw arm 7, and the inside of the fixed claw arm 7 is provided with a locking groove 3-10.

[0050] In some examples, the fixed clamping arm 7 moves along with the sliding clamping claw 3-2. The fixed clamping arm 7 is used to fix and clamp the wheel hub, and the clamping groove 3-10 is used for the wheel hub to be embedded in it, thereby improving the stability of the clamping.

[0051] For example, such as Figure 4 As shown, the inner wall of the slot 3-10 is provided with an anti-slip pad 9, and both the anti-slip pad 9 and the slot 3-10 are arc-shaped structures.

[0052] In some examples, the anti-slip pad 9 is used to protect the contact between the locking grooves 3-10 and the wheel hub, and to prevent slippage.

[0053] For example, as shown in the figure, the meshing pattern 3-3 is an arc-shaped structure, and the meshing pattern 3-3 matches the pattern of the spiral pattern 3-7. The chuck 1 is provided with a relief groove 10 inside, and a contact pad 8 is provided on the side wall of the relief groove 10. The contact pad 8 is an annular structure.

[0054] In some examples, a relief groove 10 is machined inside the chuck 1 to avoid interference with other parts of the wheel hub. An annular contact pad 8 is installed on the side wall of the relief groove 10. The contact pad 8 can buffer and protect the wheel hub.

[0055] When in use, the rotating shaft 2 on the back of the chuck 1 is the power input end of the entire chuck 1. When an external power source (such as a motor) drives the rotating shaft 2 to rotate, since the rotating shaft 2 is fitted with a drive disk 3-4, and the rotating shaft 2 is inserted into the drive hole 3-9 of the drive disk 3-4 and the mounting disk 3-6 through the bearing 6, the rotation of the rotating shaft 2 will drive the drive disk 3-4 to rotate synchronously. At the same time, the limiting ring 5 set on the rotating shaft 2 fits against the side wall of the drive disk 3-4 to prevent the drive disk 3-4 from axially moving during rotation and to ensure the stability of power transmission.

[0056] When the rotating shaft 2 rotates in one direction, the sliding pawl 3-2 moves along the drive groove 3-1 toward the center of the chuck 1 through the engagement of the spiral pattern 3-7 and the meshing pattern 3-3, thereby achieving the clamping action of the aluminum alloy wheel hub. Conversely, when the rotating shaft 2 rotates in the opposite direction, the sliding pawl 3-2 moves along the drive groove 3-1 away from the center of the chuck 1, thereby achieving the release action of the wheel hub. This method of converting rotational motion into linear motion can precisely control the moving distance and speed of the sliding pawl 3-2, ensuring reliable clamping of the wheel hub.

[0057] The sliding limit assembly 4 has an embedded sliding groove 4-1 on both sides inside the drive groove 3-1. The sliding claw 3-2 has embedded sliding strips 4-2 on both sides. The embedded sliding strips 4-2 are embedded inside the embedded sliding groove 4-1. This structure plays a guiding and limiting role for the sliding claw 3-2, ensuring that the sliding claw 3-2 can only move in a straight line within the drive groove 3-1, avoiding the sliding claw 3-2 from shifting or shaking during the movement, and ensuring the accuracy of clamping.

[0058] The side wall of the mounting slide bar 4-2 is provided with a wheel groove 4-3, and a sliding wheel 4-4 is provided in the wheel groove 4-3. A part of the sliding wheel 4-4 extends out of the wheel groove 4-3 and fits against the mounting groove 4-1. During the movement of the sliding pawl 3-2, the sliding wheel 4-4 rolls in the mounting groove 4-1, converting sliding friction into rolling friction, which greatly reduces the friction between the sliding pawl 3-2 and the drive groove 3-1, making the movement of the sliding pawl 3-2 smoother and improving the working efficiency and service life of the chuck 1.

[0059] The inner wall of the slot 3-10 is provided with an arc-shaped anti-slip pad 9. The anti-slip pad 9 can increase the friction with the surface of the wheel hub, prevent the wheel hub from sliding or rotating during processing, further improve the clamping stability of the wheel hub, and ensure the processing quality.

[0060] The annular contact pad 8 on the side wall of the clearance groove 10 can play a buffering and protective role, preventing the wheel hub from being damaged by rigid collision with the chuck 1 during installation, and at the same time, it can further improve the stability of the wheel hub in the chuck 1.

[0061] The switching sleeve 3-13 inside the switching slot 3-11 can rotate, and can clamp different outer walls of wheel hubs according to different wheel hub clamping frames 3-15. Furthermore, after being pushed within the clamping track 3-16 by the clamping block 3-17, the wheel hub clamping frame 3-15 is positioned by the clamping frame 3-18, thus enabling the clamping of wheel hubs with different surface textures and improving the adaptability of diverse wheel hubs.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A wheel hub chuck for machining aluminum alloy wheel hubs, characterized in that, include: A chuck (1) is provided with a rotating shaft (2) on its back; A drive clamping assembly (3) is disposed on the chuck (1); A sliding limit component (4) is disposed on the chuck (1); The drive clamping assembly (3) includes a drive groove (3-1) on the chuck (1). A sliding jaw (3-2) is provided within the drive groove (3-1). The back of the sliding jaw (3-2) is provided with meshing grooves (3-3). A drive disc (3-4) is mounted on the rotating shaft (2). A positioning groove (3-5) is provided on the front of the drive disc (3-4). A mounting disc (3-6) is provided within the positioning groove (3-5). A spiral pattern (3-7) is provided on the front of the mounting disc (3-6), and the spiral pattern (3-7) meshes with the meshing grooves (3-3). A fixing arm (7) is provided on the side wall of the sliding jaw (3-2). A positioning groove (3-10) is provided inside the fixing arm (7). The inner sidewall is provided with a switching groove (3-11), and the switching groove (3-11) is provided with a switching shaft (3-12). A switching sleeve (3-13) is fitted on the switching shaft (3-12). A positioning frame (3-14) is provided on the outer sidewall of the switching sleeve (3-13). A wheel hub positioning frame (3-15) is provided on the sidewall of the positioning frame (3-14). There are several wheel hub positioning frames (3-15), and the sidewall structures of the multiple wheel hub positioning frames (3-15) are all different. A positioning track (3-16) is provided on the sidewall of the switching groove (3-11). A positioning block (3-17) is provided in the positioning track (3-16). A positioning bracket (3-18) is provided on the positioning block (3-17). The positioning bracket (3-18) is embedded in the wheel hub positioning frame (3-15).

2. The wheel hub chuck (1) for machining aluminum alloy wheel hubs according to claim 1, characterized in that, The drive plate (3-4) has a drive bar (3-8) on its front side. Both the drive plate (3-4) and the mounting plate (3-6) have drive holes (3-9). The rotating shaft (2) is inserted into the drive hole (3-9).

3. The wheel chuck (1) for machining aluminum alloy wheel hubs according to claim 1, characterized in that, The sliding limit assembly (4) includes an embedded slide groove (4-1), which is opened on opposite sides inside the drive groove (3-1). The opposite sides of the sliding claw (3-2) are provided with embedded slide strips (4-2), which are embedded in the interior of the embedded slide groove (4-1).

4. The wheel hub chuck (1) for machining aluminum alloy wheel hubs according to claim 3, characterized in that, The side wall of the mounting slide (4-2) is provided with a wheel groove (4-3), and a sliding wheel (4-4) is provided in the wheel groove (4-3). The sliding wheel (4-4) is fitted into the wheel groove (4-3), a part of the sliding wheel (4-4) extends out of the sliding wheel (4-4), and the sliding wheel (4-4) is in contact with the mounting groove (4-1).

5. The wheel hub chuck (1) for machining aluminum alloy wheel hubs according to claim 1, characterized in that, A limiting ring (5) is provided on the rotating shaft (2), and the limiting ring (5) is in contact with the side wall of the driving disk (3-4).

6. The wheel hub chuck (1) for machining aluminum alloy wheel hubs according to claim 2, characterized in that, The rotating shaft (2) is fitted with a bearing (6), and the rotating shaft (2) is inserted into the drive hole (3-9) through the bearing (6).

7. The wheel hub chuck (1) for machining aluminum alloy wheel hubs according to claim 1, characterized in that, The inner wall of the slot (3-10) is provided with an anti-slip pad (9), and both the anti-slip pad (9) and the slot (3-10) are arc-shaped structures.

8. The wheel chuck (1) for machining aluminum alloy wheel hubs according to claim 1, characterized in that, The meshing pattern (3-3) has an arc-shaped structure, and the meshing pattern (3-3) matches the pattern of the vortex pattern (3-7).

9. A wheel chuck (1) for machining aluminum alloy wheel hubs according to claim 1, characterized in that, The chuck (1) has a clearance groove (10) inside, and a contact pad (8) is provided on the side wall of the clearance groove (10). The contact pad (8) has an annular structure.

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