Special-shaped tool clamp for automobile chassis
By using a sliding assembly, a lead screw structure driven by a servo motor, and a moving part design driven by a pneumatic cylinder, the problem of traditional tooling fixtures being unable to adapt to irregularly shaped parts is solved, achieving precise positioning and firm clamping, thus improving machining accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海宇创自动化科技有限责任公司
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional automotive chassis tooling fixtures cannot be adaptively adjusted, resulting in inaccurate positioning of irregularly shaped parts, increasing clamping difficulty, and affecting machining accuracy and product qualification rate.
By employing a sliding component and a lead screw structure driven by a servo motor, combined with a pneumatic cylinder-driven moving part and an anti-slip pad design, precise position adjustment and adaptive clamping of irregularly shaped parts can be achieved.
It enables precise positioning and secure clamping of irregularly shaped parts, improves machining accuracy and production efficiency, reduces tooling change costs, and enhances machining stability and product quality.
Smart Images

Figure CN224129612U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automobile manufacturing technology, specifically relating to a special-shaped tooling fixture for automobile chassis. Background Technology
[0002] In the automotive manufacturing industry, the chassis, as a key component, directly affects the safety and stability of the entire vehicle due to its machining accuracy and quality. Tooling fixtures, as indispensable auxiliary equipment in the chassis machining process, play a crucial role in positioning and clamping chassis parts, ensuring machining accuracy and improving production efficiency.
[0003] With the rapid development of the automotive industry, to meet the demands of lightweight and personalized design, the structures of automotive chassis parts are becoming increasingly complex, and the application of irregularly shaped parts is becoming more widespread. However, traditional automotive chassis tooling fixtures mostly adopt fixed-shape clamping structures, which have significant limitations when dealing with irregularly shaped and varied chassis parts. Because their clamping structures cannot adaptively adjust according to the contours of the parts, it is difficult to achieve precise positioning of irregularly shaped parts during clamping. This not only increases the difficulty of clamping but also easily leads to displacement of the parts during machining due to unstable clamping, thereby affecting machining accuracy and reducing product yield. Therefore, those skilled in the art provide an automotive chassis irregularly shaped tooling fixture to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide a simple and reasonably designed automotive chassis irregular tooling fixture in order to solve the above problems.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: it includes an installation component and several irregularly shaped tooling fixtures. These irregularly shaped tooling fixtures are mounted on top of a sliding component slidably connected above the installation component. A sliding groove is formed on the sliding table of the installation component. A servo motor driving a lead screw of the sliding component rotates, causing the slider to move the tooling table along the sliding groove. This structure enables precise horizontal positioning adjustment of irregularly shaped chassis parts, solving the problem that traditional tooling fixtures are fixed in position and cannot adapt to various processing position requirements.
[0006] As a further optimization of this utility model, the irregular-shaped tooling fixture adopts a structure in which a pneumatic cylinder drives the movable part to rotate around the hinge seat, so that the anti-slip pad on the movable block can conform to the irregular surface of the irregular chassis part. Through hydraulic drive and hinge structure, the fixture can automatically adjust the clamping angle according to the shape of the part, enhancing its adaptability to parts with complex contours.
[0007] As a further optimization of this utility model, the anti-slip pad on the side wall of the movable block is made of a high-friction coefficient material, which increases the friction with the surface of the part during clamping and prevents the part from sliding during processing. At the same time, the elasticity of the anti-slip pad can buffer the clamping force and avoid damage to the surface of the part, making it particularly suitable for processing chassis parts made of soft materials such as aluminum alloy.
[0008] As a further optimization of this utility model, multiple irregularly shaped tooling fixtures can be movably installed on the top of the tooling table. By adjusting the position of the fixture seat on the tooling table, chassis parts of different sizes and shapes can be quickly adapted. This modular design improves the versatility of the tooling fixtures and reduces the tooling replacement cost for enterprises.
[0009] As a further optimization of this utility model, the two ends of the lead screw of the sliding assembly are supported by a servo motor and a fixed base, respectively, forming a stable rotation structure. The lead screw drive has the characteristics of high precision, reversibility and self-locking, which can accurately control the movement position of the tooling table and maintain stability after positioning, ensuring that the position of the part does not shift during the processing.
[0010] As a further optimization of this utility model, by arranging multiple irregularly shaped tooling fixtures on the tooling table, irregularly shaped chassis parts can be clamped simultaneously from multiple directions. This combined clamping method improves the clamping rigidity of the parts, effectively reduces machining vibration, and enhances the machining accuracy and surface quality of automotive chassis parts.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. In this utility model, the pneumatic cylinder of the irregular tooling fixture drives the movable part to rotate around the hinge seat, which causes the anti-slip pad on the movable block to fit against the irregular surface of the part, thereby achieving self-adaptive clamping. This design effectively solves the problem of difficult clamping of irregular parts and expands the application range of tooling fixtures.
[0013] 2. This utility model, through the cooperation of the slide table and slide groove of the mounting component with the servo motor, lead screw and slider of the sliding component, can realize high-precision sliding adjustment of the tooling table. This allows irregular chassis parts to be flexibly positioned according to different processing requirements without frequent tooling changes, which greatly improves production efficiency and processing accuracy.
[0014] 3. This utility model, by setting anti-slip pads on the side walls of the movable block, increases the friction between the part and the material with a high coefficient of friction. At the same time, it is combined with multiple irregular tooling fixtures for clamping, applying stable clamping force to the part from multiple directions, which greatly reduces the displacement and vibration of the part during the processing, and ensures the processing stability and product qualification rate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is the utility model Figure 1 A schematic diagram of a partial structure;
[0017] Figure 3 This is a structural schematic diagram of the irregular-shaped tooling fixture of this utility model;
[0018] Figure 4 This is the utility model Figure 1 Enlarged diagram of point A in the middle.
[0019] In the diagram: 1. Mounting assembly; 101. Slide table; 102. Slide groove; 2. Sliding assembly; 201. Servo motor; 202. Lead screw; 203. Slide rail; 204. Tooling table; 205. Fixed seat; 206. Slider; 3. Irregular tooling fixture; 301. Fixture seat; 302. Pneumatic cylinder; 303. Moving part; 304. Hinge seat; 305. Moving block; 306. Anti-slip pad; 4. Irregular chassis parts. Detailed Implementation
[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0021] Example 1
[0022] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model includes an installation component 1, a sliding component 2, and several irregularly shaped tooling fixtures 3. The installation component 1 serves as the basic support structure for the entire tooling fixture and includes a slide table 101 for installing the sliding component 2. A slide groove 102 is provided on the top of the slide table 101 to provide a track for the installation and sliding of the sliding component 2. The sliding component 2 is installed on the top of the slide groove 102 and includes a servo motor 201 installed on the top of the slide groove 102. A lead screw 202 is fixedly installed at the output end of the servo motor 201. One end of the lead screw 202 is rotatably connected to a fixed seat 205, which is fixedly installed on the top of the slide groove 102. A slider 206 is threaded onto the outer wall of the lead screw 202. The top of the slider 206 is fixedly connected to the bottom of a tooling table 204, which is used to install the irregularly shaped tooling fixtures 3.
[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, several irregularly shaped tooling fixtures 3 are installed on the top of the tooling table 204. Each irregularly shaped tooling fixture 3 includes a fixture seat 301 movably installed on the top of the tooling table 204. A pneumatic cylinder 302 is installed on the side wall of the fixture seat 301. A movable part 303 is hinged to the output end of the pneumatic cylinder 302. A hinge seat 304, which is hinged to the movable part 303, is hinged to the side wall of the fixture seat 301. A movable block 305 is installed on the side wall of the movable part 303. An anti-slip pad 306 is fixedly installed on the side wall of the movable block 305. An irregularly shaped chassis part 4 is provided on the top of the tooling table 204. The anti-slip pad 306 cooperates with the fixture seat 301 to clamp the irregularly shaped chassis part 4 on the side wall. By setting up the mutual cooperation of the mounting component 1, the sliding component 2, and the irregularly shaped tooling fixture 3, flexible positioning and reliable clamping of the irregularly shaped automobile chassis parts are achieved.
[0024] Among them, the slide table 101 and slide groove 102 of the mounting component 1 provide a stable sliding foundation for the sliding component 2; the transmission structure composed of the servo motor 201, lead screw 202, fixed seat 205 and slider 206 of the sliding component 2 can accurately adjust the position of the tooling table 204, and then adjust the position of the irregular chassis part 4 to meet different processing requirements; the design of the pneumatic cylinder 302, movable part 303, hinge seat 304, movable block 305 and anti-slip pad 306 of the irregular tooling fixture 3 enables the fixture to adapt to the complex shape of the irregular chassis part 4, and the anti-slip pad 306 increases the friction to achieve a firm clamping of the irregular chassis part 4, ensuring that the part will not be displaced during processing, and improving processing accuracy and product quality.
[0025] It should be noted that when using this utility model: First, place the irregular chassis part 4 on the top of the tooling table 204. Then, start the servo motor 201. The servo motor 201 drives the lead screw 202 to rotate. Since the lead screw 202 is threadedly connected to the slider 206, the slider 206 will slide along the direction of the slide groove 102 on the tooling table 204 under the rotation of the lead screw 202, thereby adjusting the position of the irregular chassis part 4 so that it reaches the appropriate processing position.
[0026] Once the position of the irregular chassis part 4 is determined, the pneumatic cylinder 302 is activated. The output end of the pneumatic cylinder 302 pushes the movable part 303 to move. Since the movable part 303 is hinged to the hinge seat 304, the movable part 303 will rotate around the hinge seat 304 during the movement, thereby driving the movable block 305 to move towards the irregular chassis part 4 until the anti-slip pad 306 is in close contact with the side wall of the irregular chassis part 4, and the clamp seat 301 firmly clamps the irregular chassis part 4.
[0027] This embodiment combines gear transmission, sliding rails, and an electrical control system to achieve flexible displacement and safety protection of the maintenance climbing frame, effectively solving the technical problem of inconvenient maintenance of traditional prefabricated pumping stations and improving the convenience and safety of equipment maintenance.
[0028] The above-described embodiments are merely examples of several implementations of this utility model. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. An automobile chassis special-shaped tooling fixture, comprising a mounting assembly (1) and a plurality of special-shaped tooling fixtures (3), wherein the plurality of special-shaped tooling fixtures (3) are mounted on the top of a sliding assembly (2) which is slidingly connected above the mounting assembly (1), characterized in that: The sliding assembly (2) includes a tooling table (204) for mounting irregularly shaped tooling fixtures (3). Each of the irregularly shaped tooling fixtures (3) includes a fixture seat (301) rotatably connected to the top of the tooling table (204). A pneumatic cylinder (302) is mounted on the side wall of the fixture seat (301). A movable part (303) is hinged to the output end of the pneumatic cylinder (302). A hinge seat (304) is hinged to the side wall of the fixture seat (301) and hinged to the movable part (303). A movable block (305) is mounted on the side wall of the movable part (303). An anti-slip pad (306) is fixedly mounted on the side wall of the movable block (305).
2. The automobile chassis special-shaped tooling fixture according to claim 1, characterized in that: The mounting assembly (1) includes a slide table (101) for mounting the sliding assembly (2), the top of the slide table (101) having a groove (102), and the sliding assembly (2) being mounted on the top of the groove (102).
3. The automobile chassis special-shaped tooling fixture according to claim 2, characterized in that: The sliding assembly (2) includes a servo motor (201) mounted on the top of the slide (102), and a lead screw (202) is fixedly mounted on the output end of the servo motor (201).
4. The automobile chassis special-shaped tooling fixture according to claim 3, characterized in that: One end of the lead screw (202) is rotatably connected to a fixed seat (205), and the fixed seat (205) is fixedly installed on the top of the slide groove (102).
5. The automobile chassis special-shaped tooling fixture according to claim 4, characterized in that: The outer wall of the lead screw (202) is threaded with a slider (206), and the top of the slider (206) is fixedly connected to the bottom of the tooling table (204).
6. The automotive chassis irregular-shaped tooling fixture of claim 5, wherein: The tooling table (204) has an irregularly shaped chassis part (4) on its top, and the anti-slip pad (306) is clamped to the side wall of the irregularly shaped chassis part (4) in conjunction with the fixture seat (301).