Automobile hub chuck

Abstract

The utility model provides an automobile hub chuck, which belongs to the technical field of hub chucks and comprises a chuck body, a pressing component and a radial positioning component. A cavity is formed in the chuck body, a detachable center positioning piece is arranged in the center of the chuck body, the pressing assembly comprises a fulcrum seat and a pressing claw hinged to the fulcrum seat, the fulcrum seat is located in the cavity, one end of the fulcrum seat is connected with a hydraulic cylinder, and the chuck body is provided with a guide rod for the pressing claw to move. The radial positioning assembly comprises a positioning plate and a supporting piece, the positioning plate is connected to the chuck body, the positioning plate is provided with an adjustable seat body and an adjustable positioning block, the supporting piece is installed on the seat body, and the positioning block is connected to the seat body through a bolt. According to the use scene, the centering mechanism of the automobile hub is researched, different hub center positioning mechanisms are configured, and disassembly is convenient. The high-rigidity chuck body is adopted, so that the rigidity of the chuck is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub chucks, in particular to an automobile wheel hub chuck. Background Art

[0002] With the rapid development of the automotive industry, automobile wheels, as one of the most important parts of automobiles, play a vital role in the appearance and performance of automobiles. In the automobile production process, in order to accurately and quickly install, remove and maintain the wheel hub, special clamping tools are required.

[0003] Traditional wheel hub chucks typically require manual operation, resulting in low efficiency and prone to unstable installation, severely impacting the efficiency and quality of automobile production. Therefore, to address this issue, it was necessary to develop a new type of automotive wheel hub chuck that would improve efficiency, reduce labor intensity, and ensure stable installation of the automotive wheel hub. To address this issue, we conducted extensive research and experiments. After repeated trials and improvements, we successfully developed a new type of automotive wheel hub chuck. Manufactured using advanced materials and processes, this chuck offers enhanced stability and flexibility, features automatic centering, and meets the installation requirements of various automotive wheel hub models, enabling fast, automated clamping and processing.

[0004] The development of automotive wheel hub chucks aims to improve the efficiency and quality of automotive production, reduce production costs, and meet market demand for high-quality vehicles. The widespread application of this new type of chuck will have a positive impact on the automotive manufacturing industry, driving its development and progress. In the future, automotive wheel hub chuck development will focus more on automation and intelligence, while also continuously innovating to accommodate different materials and sizes of wheels to meet market demand.

[0005] Due to the wide variety of automotive wheel models and the high demands placed on wheel balancing, the positioning and clamping of the wheel during processing requires specialized personnel, and additional chuck components are required to secure the wheel. Assembly and disassembly are complex and tedious, requiring significant time and tools. If a problem arises and requires repair or replacement, the maintenance costs are high, making conventional power chucks difficult to implement. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides an automobile wheel hub chuck, which aims to improve the problems of complex assembly and disassembly and high maintenance cost of existing wheel hub fixing chucks.

[0007] The utility model is implemented as follows: the utility model provides an automobile wheel hub chuck, comprising a chuck body, a pressing assembly and a radial positioning assembly.

[0008] A cavity is provided in the chuck body, and a detachable center positioning piece is provided at the center position.

[0009] The clamping assembly includes a fulcrum seat and a pressure claw hinged on the fulcrum seat. The fulcrum seat is located in the cavity and one end of the fulcrum seat is connected to a hydraulic cylinder. The chuck body has a guide rod for the pressure claw to move.

[0010] The radial positioning assembly includes a positioning plate and a support member. The positioning plate is connected to the chuck body. The positioning plate has an adjustable seat and a positioning block. The support member is installed on the seat. The positioning block is bolted to the seat.

[0011] In an embodiment of the present invention, the pressing claws and the positioning plates are distributed in sequence.

[0012] In an embodiment of the present invention, the support member includes an elastic member, a floating sleeve and a cone member connected in sequence, the elastic member is located in the seat body, and the floating sleeve is slidably connected to the seat body.

[0013] In an embodiment of the present invention, the elastic member is a coil spring.

[0014] In one embodiment of the present invention, a guide shaft is vertically provided in the cavity, and the fulcrum seat is slidably connected to the guide shaft.

[0015] The beneficial effects of the present invention are as follows: the automobile wheel hub chuck obtained by the above-mentioned design comprises a main body, a centering member, a clamping assembly, and a radial positioning assembly. The radial positioning assembly enables axial positioning of the wheel hub, while the clamping assembly achieves clamping or loosening of the wheel hub. The centering member achieves central (radial) positioning of the wheel hub.

[0016] When the chuck is working (pressing action), the hydraulic cylinder drives the fulcrum seat to move left through the output end, so that the pressure claw completes the pressing action on the wheel hub. The action sequence is reversed when the chuck body is released.

[0017] When the hub center positioning type of the chuck is a center positioning piece, the center positioning of the hub can be achieved through the inner wall of the center hole of the hub.

[0018] When the hub centering type of the chuck is a radial positioning assembly, the hub can be radially positioned through the hub flange stop. It can also be used in conjunction with the centering piece.

[0019] According to the usage scenario, the centering mechanism of the automobile wheel hub is studied and different wheel hub center positioning mechanisms are configured to facilitate disassembly. A high-rigidity chuck body is used to increase the rigidity of the chuck.

[0020] Ensure positioning accuracy: Use radial positioning components to ensure the positioning accuracy of the hub, thereby improving processing accuracy.

[0021] Automatic wheel hub fixation: Using hydraulic pressure as the power source, the wheel hub is fixed with an automatic clamping assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a top view of an automobile wheel hub chuck provided by an embodiment of the present utility model;

[0024] Figure 2 A side sectional view of an automobile wheel hub chuck provided in an embodiment of the present utility model;

[0025] Figure 3 For this utility model Figure 2 Enlarged view of point A.

[0026] In the figure: 100-chuck body; 110-cavity; 111-guide shaft; 120-center positioning member; 130-guide rod; 200-clamping assembly; 210-fulcrum seat; 211-hydraulic cylinder; 220-pressure claw; 300-radial positioning assembly; 310-positioning plate; 311-seat body; 312-positioning block; 320-support member; 321-elastic member; 322-floating sleeve; 323-cone member. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example

[0029] See also Figure 1 The utility model provides a technical solution: an automobile wheel hub chuck, comprising a chuck body 100, a pressing assembly 200 and a radial positioning assembly 300.

[0030] Among them, see Figure 1 The clamping assembly 200 and radial positioning assembly 300 are sequentially mounted on the chuck body 100. The radial positioning assembly 300 ensures the positioning accuracy of the wheel hub, thereby improving processing accuracy. The wheel hub is secured by the automatic clamping assembly 200, using hydraulic power. Both the clamping assembly 200 and radial positioning assembly 300 are replaceable and are secured to the chuck body 100 with bolts.

[0031] See also Figure 1 and Figure 2 The chuck body 100 has a cavity 110 within it, and a removable centering member 120 at its center. This centering member 120 can be selected based on the size of the wheel hub. The centering member 120 is then installed in the center of the chuck body 100 using a tool. This allows the inner hole of the wheel hub to be positioned and prevented from shaking. A guide shaft 111 is vertically disposed within the cavity 110, and a fulcrum seat 210 is slidably connected to the guide shaft 111 to prevent shaking when the fulcrum seat 210 moves up and down, which could cause the pressure claw 220 to deviate.

[0032] See also Figure 1 and Figure 2 The clamping assembly 200 includes a fulcrum seat 210 and a pressure claw 220 hinged on the fulcrum seat 210. The fulcrum seat 210 is located in the cavity 110 and is connected to a hydraulic cylinder 211 at one end. Specifically, the stroke of the hydraulic cylinder 211 is adjusted to 35 mm. When the hydraulic cylinder 211 is in the relaxation limit position of the chuck body 100, the distance between the end face of the pull rod of the hydraulic cylinder 211 and the end face of the machine tool spindle flange is consistent with the position of the connecting pin or threaded sleeve of the chuck body 100. At this time, it can ensure that the pressure claw 220 is fully opened when relaxed and that the pressure claw 220 has an 8 mm overtravel protection when clamped. The chuck body 100 has a guide rod 130 for the pressure claw 220 to move. At the same time, the pressure claw 220 is also provided with an arc groove. Through the cooperation of the arc groove and the guide rod 130, the pressure claw 220 can be pressed down and released to achieve positioning of the wheel hub. It should be noted that the piston stroke of the supporting hydraulic cylinder 211 should be greater than the stroke of the fulcrum seat 210, otherwise the axial and radial displacements of the pressure claws 220 of the chuck body 100 will be reduced.

[0033] See also Figure 1 、 Figure 2 and Figure 3The radial positioning assembly 300 includes a positioning plate 310 and a support member 320. The pressure claws 220 and the positioning plate 310 are distributed in sequence and can be arranged in three pieces in sequence. This structural position can better fix the wheel hub and can accurately and quickly install, disassemble and maintain the wheel hub. The positioning plate 310 is connected to the chuck body 100. The positioning plate 310 has an adjustable seat 311 and a positioning block 312. The support member 320 is installed on the seat 311, and the positioning block 312 is bolted to the seat 311. Specifically, the support member 320 includes an elastic member 321, a floating sleeve 322 and a cone member 323 connected in sequence. The elastic member 321 is located in the seat 311, and the floating sleeve 322 is slidably connected to the seat 311. The elastic member 321 is a coil spring. The elastic force of the coil spring itself can be used to push the cone member 323, so that its conical surface hits the conical surface of the wheel hub rim, and then cooperates with the clamping assembly 200 to press and fix each other.

[0034] Specifically, the working principle of the automobile wheel hub chuck is as follows: the wheel hub is placed on the chuck body 100, and then the radial positioning assembly 300 is adjusted so that its seat body 311 and the positioning block 312 are fixed at the inner hole of the wheel hub. The support member 320 on the seat body 311 can support the inner hole of the wheel hub. At the same time, under the action of the elastic member 321, the floating sleeve 322 can be pushed to move upward, so that the cone member 323 can push the straight end face of the wheel hub. Then the hydraulic cylinder 211 is started to push the fulcrum seat 210 to move in the cavity 110 of the chuck body 100, and under the action of the guide shaft 111, the fulcrum seat 210 can move straight up and down to avoid deviation. At the same time, the fulcrum seat 210 can push the pressure claw 220 to move on the guide rod 130, thereby driving the pressure claw 220 to press inward and press the wheel hub into position.

[0035] It should be noted that the specific model and specifications of the hydraulic cylinder 211 need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automobile wheel hub chuck, characterized in that: include A chuck body (100), wherein a cavity (110) is provided in the chuck body (100), and a detachable center positioning member (120) is provided at the center position; A clamping assembly (200), the clamping assembly (200) comprising a fulcrum seat (210) and a pressure claw (220) hinged to the fulcrum seat (210), the fulcrum seat (210) being located in the cavity (110) and having one end connected to a hydraulic cylinder (211), the chuck body (100) having a guide rod (130) for the pressure claw (220) to move; A radial positioning assembly (300) includes a positioning plate (310) and a support member (320), wherein the positioning plate (310) is connected to the chuck body (100), the positioning plate (310) has an adjustable seat (311) and a positioning block (312), the support member (320) is mounted on the seat (311), and the positioning block (312) is bolted to the seat (311).

2. The automobile wheel hub chuck according to claim 1, characterized in that: The pressing claws (220) and the positioning plates (310) are arranged in a distributed manner.

3. The automobile wheel hub chuck according to claim 1, characterized in that: The support member (320) includes an elastic member (321), a floating sleeve (322) and a cone member (323) connected in sequence, the elastic member (321) is located in the seat body (311), and the floating sleeve (322) is slidably connected to the seat body (311).

4. The automobile wheel hub chuck according to claim 3, characterized in that: The elastic member (321) is a coil spring.

5. The automobile wheel hub chuck according to claim 1, characterized in that: A guide shaft (111) is vertically provided in the cavity (110), and the fulcrum seat (210) is slidably connected to the guide shaft (111).

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