A fixture mechanism for model switching of an automobile body production line

The modularly designed clamping mechanism solves the problem of traditional clamps being unable to be quickly adjusted, achieving efficient positioning and fixing during vehicle model switching, and improving the versatility and efficiency of the production line.

CN224527036UActive Publication Date: 2026-07-21CHENYANG XINHAOCHEN INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENYANG XINHAOCHEN INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional fixtures cannot be quickly adjusted to adapt to different vehicle models, resulting in inaccurate vehicle body positioning and fixing, affecting assembly and welding precision, and making it difficult to meet the needs of multiple vehicle models, increasing equipment investment and management difficulty.

Method used

Design a clamping mechanism including a sliding seat, slide rail, clamping arm, gripper, and drive assembly, with a detachable modular structure connected by bolts, allowing adjustment or replacement of some modules to adapt to the production requirements of the new model during vehicle model switching.

Benefits of technology

It improves the versatility and reusability of fixtures, reduces equipment investment and management difficulty, ensures the positioning and fixing accuracy of the vehicle body, and enhances the flexibility and efficiency of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of clamp mechanisms for car body production line vehicle type switching, it is related to car body production line technical field, including clamp mechanism ontology, the lower end of the clamp mechanism ontology is equipped with sliding seat, two sliding rails are symmetrically equipped in the lower end of the sliding seat, the sliding rail is fixedly installed on operation table, one end of the operation table is equipped with fixed block, the clamp mechanism ontology includes fixed base, clamping arm, clamping jaw and drive assembly, the lower end of the fixed base is fixedly installed on sliding seat by bolt, the clamping arm is rotatably installed on fixed base, the clamping jaw is detachably installed at one end of clamping arm, the drive assembly is installed at the other end of clamping arm, the utility model is composed of multiple modules such as fixed base, clamping arm, clamping jaw and drive assembly, bolt connection is used between each module etc. Detachable mode, when vehicle type is switched, only need to replace or adjust part module according to the characteristics of new vehicle type, improve the versatility and reusability of clamp.
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Description

Technical Field

[0001] This utility model relates to the field of automotive body production line technology, specifically a clamping mechanism for switching automotive body production line models. Background Technology

[0002] With the continuous development of the automotive industry and the increasing diversification of market demand, automobile manufacturers have launched multi-model mixed-line production models to meet the personalized needs of consumers.

[0003] Traditional fixtures typically have fixed positioning and clamping structures, making it impossible to quickly adjust them according to the shape and size of different vehicle bodies. This results in difficulty in accurately positioning and fixing the vehicle body when switching vehicle models, affecting the accuracy of subsequent assembly and welding. In addition, the body structures of different vehicle models vary greatly, and traditional fixtures cannot meet the needs of multiple vehicle models. Companies need to equip each vehicle model with a dedicated fixture, which increases equipment investment costs and management difficulty.

[0004] Based on this, a fixture mechanism for vehicle model switching on an automotive body production line is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a fixture mechanism for vehicle model switching on an automobile body production line, in order to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A clamping mechanism for vehicle model switching in an automobile body production line includes a clamping mechanism body. The lower end of the clamping mechanism body is provided with a sliding seat. Two slide rails are symmetrically provided at the lower end of the sliding seat. The slide rails are fixedly mounted on an operating table. A fixing block is provided at one end of the operating table. The clamping mechanism body includes a fixed seat, a clamping arm, a clamping jaw, and a drive assembly. The lower end of the fixed seat is fixedly mounted on the sliding seat by bolts. The clamping arm is rotatably mounted on the fixed seat. The clamping jaw is detachably mounted on one end of the clamping arm. The drive assembly is mounted on the other end of the clamping arm.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the slide rail includes two I-beams bolted to the operating table, and rails are bolted to the I-beams.

[0010] In one alternative embodiment: the sliding seat includes a base plate disposed above the rail, the base plate having mounting holes, a slider being bolted to the lower end of the mounting holes, the slider being disposed on both sides of the rail, and a movable component being disposed at the lower end of the base plate.

[0011] In one alternative: the movable component includes an electric telescopic rod, the fixed end of which is fixed to the lower end of the base plate, and the output end of which is fixedly connected to the fixed block.

[0012] In one alternative: the fixed seat includes a connecting plate bolted to the sliding seat, the connecting plate having two symmetrically arranged support plates, and the support plates having shafts.

[0013] In one alternative embodiment: the clamping arm includes an upper clamping arm and a lower clamping arm, both of which are rotatably mounted on a shaft. One end of each of the upper and lower clamping arms is provided with a detachable mounting base for mounting the gripper, and the other end of the upper clamping arm is provided with a U-shaped base for mounting the drive assembly.

[0014] In one alternative: the detachable mounting base is provided with a mounting groove, the upper end of the mounting groove is provided with a slot, and the wall of the slot is provided with fastening bolts.

[0015] In one alternative: the drive assembly includes a cylinder mounted on a U-shaped seat, a rotating seat at the lower end of the cylinder, the rotating seat being rotatably mounted inside the U-shaped seat, a connecting rod at the output end of the cylinder, and the lower end of the cylinder being hinged to one end of the lower clamping arm.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model uses a fixture mechanism composed of multiple modules such as a fixed base, clamping arms, clamping claws and a drive assembly. The modules are connected by bolts or other detachable methods. When changing vehicle models, only some modules need to be replaced or adjusted according to the characteristics of the new model to adapt the fixture to the production requirements of the new model. There is no need to replace the entire fixture, which improves the versatility and reusability of the fixture. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0020] Figure 3 This is a schematic diagram of the sliding seat in this utility model.

[0021] Figure 4 This is a schematic diagram of the fixture mechanism body in this utility model.

[0022] Figure reference numerals: 100, operating table; 101, fixing block; 200, slide rail; 201, I-beam; 202, rail; 300, sliding seat; 301, base plate; 302, mounting hole; 303, slider; 304, electric telescopic rod; 400, clamping mechanism body; 401, connecting plate; 402, support plate; 403, shaft; 404, upper clamping arm; 405, lower clamping arm; 406, detachable mounting base; 407, mounting groove; 408, slot; 409, fastening bolt; 410, gripper; 411, U-shaped seat; 412, rotating seat; 413, cylinder; 414, connecting rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figures 1-4 As shown, a clamping mechanism for vehicle model switching in an automobile body production line includes a clamping mechanism body 400. A sliding seat 300 is provided at the lower end of the clamping mechanism body 400. Two slide rails 200 are symmetrically arranged at the lower end of the sliding seat 300. The slide rails 200 are fixedly installed on an operating table 100. A fixing block 101 is provided at one end of the operating table 100. The clamping mechanism body 400 includes a fixed seat, a clamping arm, a clamping jaw 410, and a drive assembly. The lower end of the fixed seat is fixedly installed on the sliding seat 300 by bolts. The clamping arm is rotatably installed on the fixed seat. The clamping jaw 410 is detachably installed at one end of the clamping arm. The drive assembly is installed at the other end of the clamping arm. In use, the clamping mechanism body 400 can move flexibly on the operating table 100 through the cooperation of the sliding seat 300 and the slide rails 200, enabling rapid adjustment of the clamping position. The drive assembly drives the clamping arm and the clamping jaw 410 to clamp the vehicle body parts.

[0025] In one embodiment, such as Figure 1 As shown, the slide rail 200 includes two I-beams 201 bolted to the operating table 100. Rails 202 are bolted to the I-beams 201. The I-beams 201 themselves have high strength and stability, and can withstand the pressure and friction generated when the clamping mechanism body 400 moves, ensuring the stability of the slide rail 200 during long-term use. The rails 202 are tightly connected to the I-beams 201 by bolts, further enhancing the load-bearing capacity and guiding performance of the slide rail 200, providing a precise track for the movement of the sliding seat 300, and making the movement of the clamping mechanism body 400 smoother and more precise.

[0026] In one embodiment, such as Figure 3As shown, the sliding seat 300 includes a base plate 301 disposed above the rail 202. The base plate 301 has mounting holes 302, and a slider 303 is bolted to the lower end of the mounting holes 302. The slider 303 is disposed on both sides of the rail 202. A moving part is provided at the lower end of the base plate 301. The moving part includes an electric telescopic rod 304. The fixed end of the electric telescopic rod 304 is fixed to the lower end of the base plate 301, and the output end of the electric telescopic rod 304 is fixedly connected to the fixing block 101. The base plate 301 serves as the main body of the sliding seat 300. Through the connection between the mounting holes 302 and the slider 303, the sliding seat 300 is securely mounted on the rail 202. The contact surface between the slider 303 and the rail 202 is finely machined to ensure low friction and high precision when the sliding seat 300 moves on the rail 202. In use, by controlling the extension and retraction of the electric telescopic rod 304, the sliding seat 300 is driven to slide along the rail 202.

[0027] In one embodiment, such as Figure 4 As shown, the fixed base includes a connecting plate 401 bolted to the sliding base 300. Two support plates 402 are symmetrically arranged on the connecting plate 401, and a shaft 403 is provided on the support plate 402. The two support plates 402 are symmetrically distributed to provide stable support for the shaft 403, ensuring that the shaft 403 remains horizontal during the rotation of the clamping arm, thereby ensuring the stability and clamping accuracy of the clamping arm and providing a solid foundation for subsequent clamping actions.

[0028] In one embodiment, such as Figure 4 As shown, the clamping arm includes an upper clamping arm 404 and a lower clamping arm 405. Both the upper clamping arm 404 and the lower clamping arm 405 are rotatably mounted on the shaft 403. One end of the upper clamping arm 404 and the lower clamping arm 405 is provided with a detachable mounting seat 406 for mounting the gripper 410. The other end of the upper clamping arm 404 is provided with a U-shaped seat 411 for mounting the drive component. The upper clamping arm 404 and the lower clamping arm 405 realize the opening and closing action under the action of the drive component, thereby driving the gripper 410 to clamp or release the car body parts.

[0029] In one embodiment, such as Figure 4 As shown, the detachable mounting base 406 is provided with a mounting groove 407, and the upper end of the mounting groove 407 is provided with a slot 408. The slot wall of the slot 408 is provided with a fastening bolt 409. During installation, one end of the gripper 410 is inserted into the mounting groove 407, and then the fastening bolt 409 is tightened to fix the gripper 410.

[0030] In one embodiment, such as Figure 4As shown, the drive assembly includes a cylinder 413 mounted on a U-shaped seat 411. A rotating seat 412 is provided at the lower end of the cylinder 413. The rotating seat 412 is rotatably mounted inside the U-shaped seat 411. A connecting rod 414 is provided at the output end of the cylinder 413. The lower end of the cylinder 413 is hinged to one end of the lower clamping arm 405. When the cylinder 413 receives a control signal, its output end drives the lower clamping arm 405 to rotate around the shaft 403 through the connecting rod 414, thereby realizing the opening and closing of the gripper 410 and completing the clamping or release of the car body parts.

[0031] The above embodiment discloses a clamping mechanism for vehicle model switching in an automobile body production line. In use, by controlling the extension and retraction of the electric telescopic rod 304, the sliding seat 300 is driven to slide along the rail 202, thereby adjusting the position of the clamping mechanism body 400. Then, the cylinder 413 drives the connecting rod 414 to drive the lower clamping arm 405 to rotate around the shaft 403, thereby opening and closing the gripper 410 and completing the clamping or release of the automobile body parts.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A clamping mechanism for vehicle model switching on an automobile body production line, characterized in that, The fixture includes a clamping mechanism body (400), a sliding seat (300) at the lower end of the clamping mechanism body (400), two slide rails (200) symmetrically arranged at the lower end of the sliding seat (300), the slide rails (200) being fixedly installed on the operating table (100), a fixing block (101) being provided at one end of the operating table (100), the clamping mechanism body (400) including a fixed seat, a clamping arm, a clamping jaw (410) and a driving assembly, the lower end of the fixed seat being fixedly installed on the sliding seat (300) by bolts, the clamping arm being rotatably installed on the fixed seat, the clamping jaw (410) being detachably installed on one end of the clamping arm, and the driving assembly being installed on the other end of the clamping arm.

2. The clamping mechanism for vehicle model switching on an automobile body production line according to claim 1, characterized in that, The slide rail (200) includes two I-beams (201) bolted to the operating table (100), and rails (202) are bolted to the I-beams (201).

3. The clamping mechanism for vehicle model switching on an automobile body production line according to claim 1, characterized in that, The sliding seat (300) includes a base plate (301) disposed above the rail (202), the base plate (301) is provided with mounting holes (302), the lower end of the mounting holes (302) is bolted to a slider (303), the slider (303) is disposed on both sides of the rail (202), and the lower end of the base plate (301) is provided with a moving part.

4. A clamping mechanism for vehicle model switching on an automobile body production line according to claim 3, characterized in that, The movable component includes an electric telescopic rod (304), the fixed end of which is fixed to the lower end of the base plate (301), and the output end of which is fixedly connected to the fixed block (101).

5. A clamping mechanism for vehicle model switching on an automobile body production line according to claim 1, characterized in that, The fixed seat includes a connecting plate (401) bolted to the sliding seat (300), and two support plates (402) are symmetrically provided on the connecting plate (401), and a shaft (403) is provided on the support plate (402).

6. A clamping mechanism for vehicle model switching on an automobile body production line according to claim 1, characterized in that, The clamping arm includes an upper clamping arm (404) and a lower clamping arm (405). Both the upper clamping arm (404) and the lower clamping arm (405) are rotatably mounted on the shaft (403). One end of the upper clamping arm (404) and the lower clamping arm (405) is provided with a detachable mounting seat (406) for mounting the gripper (410). The other end of the upper clamping arm (404) is provided with a U-shaped seat (411) for mounting the drive assembly.

7. A clamping mechanism for vehicle model switching on an automobile body production line according to claim 6, characterized in that, The detachable mounting base (406) is provided with a mounting groove (407), and the upper end of the mounting groove (407) is provided with a slot (408), and the slot wall of the slot (408) is provided with a fastening bolt (409).

8. A clamping mechanism for vehicle model switching on an automobile body production line according to claim 1, characterized in that, The drive assembly includes a cylinder (413) mounted on a U-shaped seat (411), a rotating seat (412) at the lower end of the cylinder (413), the rotating seat (412) being rotatably mounted inside the U-shaped seat (411), a connecting rod (414) at the output end of the cylinder (413), and the lower end of the cylinder (413) being hinged to one end of the lower clamping arm (405).