Hydraulic positioning fixture for automobile wheel hub
By designing a hydraulic positioning fixture, the problems of flexibility and stability in the traditional automotive wheel hub positioning fixture during processing are solved, achieving stable clamping of the wheel hub and applicability to multiple models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINANCHI ALUMINUM IND CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional automotive wheel hub positioning fixtures require manual adjustment during processing, resulting in low flexibility and inconvenience in relocation. Furthermore, complex or simple fixtures often lack automation, leading to unstable positioning.
The hydraulic positioning fixture includes a base plate, a convex base, a connecting block, a cylinder, a telescopic rod, a connecting plate, and a clamping block. The cylinder drives the clamping block to move up and down, achieving stable clamping and positioning of various wheel hub models.
It achieves stable clamping and positioning of wheel hubs, is highly applicable and flexible, and is suitable for processing various wheel hub models, simplifying the operation process.
Smart Images

Figure CN224476084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automobile wheel hub processing, specifically to an automobile wheel hub hydraulic positioning fixture. Background Technology
[0002] A wheel hub is a cylindrical metal component that supports the tire from the inside and is mounted on an axle. It is also called a wheel rim, steel rim, wheel, or tire rim. Wheel hubs come in many varieties depending on their diameter, width, forming method, and materials.
[0003] During the processing of automotive wheel hubs, they need to be clamped and positioned. Traditional wheel hub positioning fixtures have their own advantages and disadvantages. Fixtures with stable positioning and high automation are generally more complex in structure, have more parts, and have higher procurement costs. Fixtures with simple structure and lower cost have low automation and require manual operation for clamping and positioning, resulting in low flexibility and unstable clamping and positioning. Currently, there is a need for a positioning fixture to overcome the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The technical problem to be solved by this utility model is: This utility model provides a hydraulic positioning fixture for automotive wheel hubs, which solves the problem that bearings need to be clamped and positioned during the processing of bearings. Although traditional fixtures can effectively clamp and fix bearings, operators need to constantly adjust their own position during the processing to process multiple positions of the bearing, which is less flexible. In addition, traditional bearing fixtures are bulky and inconvenient to transfer and transport.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic positioning fixture for automotive wheel hubs, comprising a base plate, a convex base, a connecting block, a cylinder, a telescopic rod, a connecting plate, and a clamping block. The convex base is disposed on the upper part of the base plate, the connecting block is welded and fixed to the upper part of the convex base, the cylinder is welded and fixed to the upper part of the connecting block, the telescopic rod is connected to the upper part of the cylinder in a pull rod manner, the connecting plate is welded and fixed to the top of the telescopic rod, and the clamping block is welded and fixed to the bottom of the connecting plate.
[0008] Furthermore, the convex base is made of aluminum alloy, and the height of the convex base is 15-20cm.
[0009] Furthermore, there are several cylinders, and the specifications of the several cylinders are the same.
[0010] Furthermore, the thickness of the clamping block is 5-7cm, and the material selected for the clamping block is aluminum alloy.
[0011] (III) Beneficial Effects
[0012] This utility model provides a hydraulic positioning fixture for automotive wheel hubs, which has the following advantages: novel structure, adopts hydraulic clamping method, uses three-jaw chuck automatic fixture, and rotary clamping cylinder to press, which can ensure the stability of wheel hub pressing and positioning, and the cylinder can drive the pressing block to move up and down for adjustment, which can press and position wheel hubs of various widths, and is compatible with the processing of various models of wheel hubs, with strong applicability and flexibility. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the pressing mechanism of this utility model;
[0015] In the diagram: 1-base plate, 2-convex base, 3-connecting block, 4-cylinder, 5-telescopic rod, 6-connecting plate, 7-clamping block. 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not 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 the present utility model.
[0017] Please see Figure 1 and Figure 2This utility model provides a technical solution: a hydraulic positioning fixture for automobile wheel hubs, including a base plate 1, a convex base 2, a connecting block 3, a cylinder 4, a telescopic rod 5, a connecting plate 6, and a clamping block 7. The convex base 2 is disposed on the upper part of the base plate 1, the connecting block 3 is welded and fixed to the upper part of the convex base 2, the cylinder 4 is welded and fixed to the upper part of the connecting block 3, the telescopic rod 5 is connected to the upper part of the cylinder 4 in a pull rod manner, the connecting plate 6 is welded and fixed to the top of the telescopic rod 5, and the clamping block 7 is welded and fixed to the bottom of the connecting plate 6.
[0018] The convex base 2 is made of aluminum alloy and has a height of 15-20cm. There are several cylinders 4, and the specifications of the cylinders 4 are the same. The thickness of the clamping block 7 is 5-7cm and the material of the clamping block 7 is aluminum alloy.
[0019] Working principle: The wheel hub is placed on the upper part of the base plate 1 and in the center of the base plate 1. The cylinder 4 drives the connecting plate 6 to move up and down through the telescopic rod 5, that is, the pressing block 7 moves up and down, so that the pressing block 7 can press and fix the wheel hub.
[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A hydraulic positioning fixture for automobile wheel hubs, characterized in that: The system includes a base plate (1), a convex base (2), a connecting block (3), a cylinder (4), a telescopic rod (5), a connecting plate (6), and a clamping block (7). The convex base (2) is located on the upper part of the base plate (1). The connecting block (3) is welded and fixed to the upper part of the convex base (2). The cylinder (4) is welded and fixed to the upper part of the connecting block (3). The telescopic rod (5) is connected to the upper part of the cylinder (4) in a rod-like manner. The connecting plate (6) is welded and fixed to the top of the telescopic rod (5). The clamping block (7) is welded and fixed to the bottom of the connecting plate (6).
2. The hydraulic positioning fixture for automobile wheel hubs according to claim 1, characterized in that: The convex base (2) is made of aluminum alloy and has a height of 15-20cm.
3. The hydraulic positioning fixture for automobile wheel hubs according to claim 1, characterized in that: The cylinder (4) is provided in several parts, and the specifications of the several cylinders (4) are the same.
4. The hydraulic positioning fixture for automobile wheel hubs according to claim 1, characterized in that: The thickness of the clamping block (7) is 5-7cm, and the material of the clamping block (7) is aluminum alloy.