Welding fixture for multiple vehicle types
By designing a multi-vehicle welding fixture, cylinders and sensors are used to achieve precise positioning and rapid adaptation of parts for different vehicle models, solving the problem of insufficient flexibility of traditional fixtures, improving production efficiency and reducing replacement costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional welding fixtures have a simple design, which leads to frequent replacements or adjustments when switching models on the production line. This is time-consuming, increases material costs, and reduces production efficiency.
Design a welding fixture applicable to multiple vehicle models. By combining five fixtures, it can flexibly clamp automotive parts of different sizes, shapes, and weights. Utilizing the cooperation of cylinders and sensors, it can achieve precise positioning and rapid adaptation to different vehicle models.
It significantly reduced fixture replacement costs, improved the flexibility and efficiency of the production line, ensured stable clamping of parts for various vehicle models, and promoted production process optimization and cost savings.
Smart Images

Figure CN223997676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing equipment technology, specifically a welding fixture applicable to multiple vehicle models. Background Technology
[0002] Automobile manufacturing is a complex and meticulous process, primarily encompassing design and development, parts manufacturing, assembly, quality inspection, and testing. First, designers meticulously conceive the car's exterior, interior, and performance, and conduct experimental tests. Then, various components, such as the engine, transmission, and chassis, are manufactured in different factories. Next, all components are sent to the assembly line, where they undergo stamping, welding, painting, and final assembly processes to form a complete car. Finally, the new car undergoes rigorous quality inspection and testing to ensure its performance and quality meet standards. The entire process reflects the high degree of automation and precise collaboration in modern industry.
[0003] In automobile manufacturing, welding fixtures play a crucial role, primarily used to secure and position body components to ensure welding precision and consistency. However, with the diversification of the automotive market and changing consumer demands, the limitations of traditional welding fixture designs are becoming increasingly apparent. Typically, traditional welding fixtures are custom-designed for specific car models. This single-model design results in insufficient fixture flexibility, often requiring replacement or adjustment of existing fixtures when the production line needs to switch to a new model. This process is not only time-consuming but also incurs additional material costs and reduces production efficiency. Especially in modern automobile manufacturing, rapid response to market changes and improved production efficiency are key to maintaining a company's competitiveness. Utility Model Content
[0004] The purpose of this invention is to provide a welding fixture applicable to multiple vehicle models, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture applicable to multiple vehicle models, comprising a main body, and further comprising:
[0006] A first clamp is disposed on the top of the main body. The first clamp includes a first welding frame fixed to the top of the main body. A first cylinder is fixed on the outside of the first welding frame. The piston rod of the first cylinder is provided with a pressure arm. A third sensor is installed on the first welding frame through a connector. A first hook cylinder is provided on one side of the third sensor.
[0007] The second clamp is set on the top of the main body. The second clamp includes a second welding frame fixed to the top of the main body. A second hook cylinder is set on the top of the second welding frame. A bracket is set on the top of the second welding frame. A first sensor is installed on one side of the bracket.
[0008] The third clamp is set on the top of the main body. The third clamp includes a third welding frame fixed to the top of the main body. A second cylinder is fixed on the outside of the third welding frame. The piston rod of the second cylinder is provided with a clamping plate. A second sensor is installed on the outside of the third welding frame through a connector.
[0009] The fourth clamp is set on the top of the main body. The fourth clamp includes a fourth welding frame fixed to the top of the main body. A third cylinder is fixed on the outside of the fourth welding frame. A pressure block is set on the outside of the piston rod of the third cylinder.
[0010] The fifth clamp is located on the top of the main body. The fifth clamp includes a fifth welding frame fixed to the top of the main body. A fourth cylinder is fixed to the outside of the fifth welding frame. The piston rod of the fourth cylinder is provided with a clamping block.
[0011] Preferably, each of the four corners of the top of the main body is fixed with a support column, and the lower end of the support column is fixed with a foot for supporting the main body.
[0012] Preferably, the top of the main body is provided with multiple sets of cover plates, and the cover plates are used to cover the reference holes.
[0013] Preferably, two sets of valve island frames are fixed to the top of the main body, and a protective cover is fixed to the top of each set of valve island frames.
[0014] Preferably, a gas distribution block is provided on the top of the main body.
[0015] Preferably, the top of the main body is fixed with a lifting ring, and the number of lifting rings is set to four sets.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This invention, by incorporating a first, second, third, fourth, and fifth clamp, aims to achieve flexible clamping of automotive parts from various vehicle models. Through the coordinated use of these five clamps, it can easily accommodate automotive parts of different sizes, shapes, and weights, eliminating the need for frequent replacements or complex adjustments to existing clamps. This design not only significantly reduces the material costs associated with clamp replacements but also greatly improves the flexibility and efficiency of the production line. Whether for parts from small cars or large SUVs, this device ensures stable and reliable clamping, providing automakers with an efficient and economical solution that promotes production process optimization and cost savings. Attached Figure Description
[0018] Figure 1 A schematic diagram of a preferred embodiment of the welding fixture applicable to multiple vehicle models provided by this utility model;
[0019] Figure 2 Schematic diagrams of the first and second welding frames provided by this utility model;
[0020] Figure 3 A schematic diagram of the first clamp structure provided by this utility model;
[0021] Figure 4 This is a schematic diagram of the second clamp structure provided by this utility model;
[0022] Figure 5 A schematic diagram of the third clamp structure provided by this utility model;
[0023] Figure 6 A schematic diagram of the fourth clamp structure provided by this utility model;
[0024] Figure 7 A schematic diagram of the fifth clamp structure provided by this utility model;
[0025] Figure 8 A schematic diagram of the valve island frame and protective cover structure provided by this utility model.
[0026] In the diagram: 1. Main body; 2. First clamp; 21. First welding frame; 22. First cylinder; 23. Pressure arm; 24. Third sensor; 25. First hook cylinder; 3. Second clamp; 31. Second welding frame; 32. Second hook cylinder; 33. Support; 34. First sensor; 4. Third clamp; 41. Third welding frame; 42. Second cylinder; 43. Clamping plate; 44. Second sensor; 5. Fourth clamp; 51. Fourth welding frame; 52. Third cylinder; 53. Pressure block; 6. Fifth clamp; 61. Fifth welding frame; 62. Fourth cylinder; 63. Clamping block; 7. Support column; 8. Foot; 9. Cover plate; 10. Valve island frame; 11. Protective cover; 12. Air distribution block; 13. Lifting ring. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-8As shown, a welding fixture applicable to multiple vehicle models includes a main body 1. A first clamp 2 is disposed on the top of the main body 1. The first clamp 2 includes a first welding frame 21 fixed to the top of the main body 1. By setting the first welding frame 21, a first cylinder 22 can be easily fixedly installed. The first cylinder 22 is fixed to the outside of the first welding frame 21. By setting the first cylinder 22, a pressure arm 23 can be easily moved. By setting the pressure arm 23, parts for different vehicle models can be easily clamped. The piston rod of the first cylinder 22 is provided with the pressure arm 23. A third sensor 24 is installed on the first welding frame 21 through a connector. By setting the third sensor 24, a first hook cylinder 25 can be easily controlled. A first hook-and-pin cylinder 25 is provided on one side of sensor 24. Through its internal mechanical structure and the drive of a fifth cylinder, the first hook-and-pin cylinder 25 can precisely position the part in the front-back, left-right, and up-down directions. This precise positioning is crucial for the assembly of parts in automobile manufacturing, ensuring accurate docking and fit between parts. A second clamp 3 is provided on the top of the main body 1. The second clamp 3 includes a second welding frame 31 fixed to the top of the main body 1. A second hook-and-pin cylinder 32 is provided on the top of the second welding frame 31. Through its internal mechanical structure and the drive of a fifth cylinder, the second hook-and-pin cylinder 32 can precisely position the part in the front-back, left-right, and up-down directions. This precise positioning is crucial for the assembly of parts in automobile manufacturing, ensuring accurate docking and fit between parts. The assembly of components is crucial in manufacturing, ensuring accurate docking and fit between components. A bracket 33 is installed on the top of the second welding frame 31, and a first sensor 34 is installed on one side of the bracket 33. The first sensor 34 facilitates control of the second hook cylinder 32. A third clamp 4 is installed on the top of the main body 1. The third clamp 4 includes a third welding frame 41 fixed to the top of the main body 1. A second cylinder 42 is fixed to the outside of the third welding frame 41. A clamping plate 43 is installed on the piston rod of the second cylinder 42. The second cylinder 42 facilitates adjustment of the clamping plate 43. The second sensor 44 is installed on the outside of the third welding frame 41 via a connector. A fourth clamp 5 is installed... The fourth clamp 5, located on top of the main body 1, includes a fourth welding frame 51 fixed to the top of the main body 1. A third cylinder 52 is fixed to the outside of the fourth welding frame 51. By setting the fourth welding frame 51, the third cylinder 52 can be easily fixed. A pressure block 53 is set to the outside of the piston rod of the third cylinder 52. By setting the third cylinder 52, the pressure block 53 can be easily adjusted. The fifth clamp 6, located on top of the main body 1, includes a fifth welding frame 61 fixed to the top of the main body 1. A fourth cylinder 62 is fixed to the outside of the fifth welding frame 61. A clamping block 63 is set to the piston rod of the fourth cylinder 62. By setting the fourth cylinder 62, the clamping block 63 can be easily adjusted.
[0029] Support columns 7 are fixed at the four corners of the top of the main body 1, and foot 8 for supporting the main body 1 is fixed at the lower end of the support columns 7; the main body 1 can be easily supported by the cooperation of the support columns 7 and foot 8.
[0030] The top of the main body 1 is provided with multiple sets of cover plates 9, and the cover plates 9 are used to cover the reference holes; by providing cover plates 9, the reference holes can be conveniently covered.
[0031] Two sets of valve island frames 10 are fixed to the top of the main body 1, and a protective cover 11 is fixed to the top of each set of valve island frames 10; by setting the valve island frames 10, the protective cover 11 can be easily supported.
[0032] A gas distribution block 12 is provided on the top of the main body 1. The basic function of the gas distribution block 12 is to divide a single gas stream into multiple streams, which then converge at corresponding locations, thereby achieving precise regulation and control of the gas flow. In automotive clamps, this typically means a more flexible distribution of compressed air to meet the needs of different pneumatic components. By precisely controlling the direction and flow rate of the gas, it can be ensured that each part of the clamp receives the required air pressure, thus achieving stable clamping and positioning functions.
[0033] The top of the main body 1 is fixed with a lifting ring 13, and the number of lifting rings 13 is set to four sets; by setting multiple sets of lifting rings 13, the position of the main body 1 can be easily adjusted.
[0034] Working principle: First, the first cylinder 22 is activated, which drives the pressure arm 23 to move, cooperating with the first hook cylinder 25 to accurately clamp the first type of vehicle part. When it is necessary to change to clamp the second type of vehicle part, the second cylinder 42 is activated, which drives the clamping plate 43 to move, working together with the third welding frame 41 to achieve stable clamping of the second type of vehicle part. If it is necessary to further switch to the third type of vehicle part, the third cylinder 52 is activated, which drives the pressure block 53 to adjust its position to adapt to and clamp the third type of vehicle part. Similarly, for the fourth type of vehicle part, the fourth cylinder 62 is activated, which pushes the clamping block 63 to move to the predetermined position to complete the clamping of the vehicle part. This clamping system, through the sequential activation and adjustment of four independent cylinders and their auxiliary clamping mechanisms, achieves rapid and accurate clamping of parts for multiple vehicle models, greatly improving the flexibility and efficiency of the production line and meeting the diverse parts assembly needs in automobile manufacturing.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A welding fixture usable for a plurality of vehicle types, comprising a main body (1), characterized in that, Also include: The first clamp (2) is arranged at the top of the main body (1), the first clamp (2) includes the first welding frame (21) fixed on the top of the main body (1), the outer side of the first welding frame (21) is fixed with the first cylinder (22), the piston rod of the first cylinder (22) is provided with the pressure arm (23), the first welding frame (21) is installed with the third sensor (24) through the connecting piece, one side of the third sensor (24) is provided with the first hook pin cylinder (25); The second clamp (3) is arranged at the top of the main body (1), the second clamp (3) includes the second welding frame (31) fixed on the top of the main body (1), the top of the second welding frame (31) is provided with the second hook pin cylinder (32), the top of the second welding frame (31) is provided with the support (33), one side of the support (33) is installed with the first sensor (34); The third clamp (4) is arranged at the top of the main body (1), the third clamp (4) includes the third welding frame (41) fixed on the top of the main body (1), the outer side of the third welding frame (41) is fixed with the second cylinder (42), the piston rod of the second cylinder (42) is provided with the clamping plate (43), the outer side of the third welding frame (41) is installed with the second sensor (44) through the connecting piece; The fourth clamp (5) is arranged at the top of the main body (1), the fourth clamp (5) includes the fourth welding frame (51) fixed on the top of the main body (1), the outer side of the fourth welding frame (51) is fixed with the third cylinder (52), the outer side of the piston rod of the third cylinder (52) is provided with the pressing block (53); The fifth clamp (6) is arranged at the top of the main body (1), the fifth clamp (6) includes the fifth welding frame (61) fixed on the top of the main body (1), the outer side of the fifth welding frame (61) is fixed with the fourth cylinder (62), the piston rod of the fourth cylinder (62) is provided with the clamping block (63).
2. The welding fixture of claim 1, wherein: The support column (7) is fixed at the four corners of the top of the main body (1), the lower end of the support column (7) is fixed with the foot (8) for supporting the main body (1).
3. The multi-vehicle compatible welding fixture of claim 1, wherein: A plurality of cover plates (9) are arranged on the top of the main body (1), and the cover plates (9) are used to cover the reference holes.
4. The multi-vehicle compatible welding fixture of claim 1, wherein: Two groups of valve island frames (10) are fixed on the top of the main body (1), and the top of the two groups of valve island frames (10) is fixed with the protective cover (11).
5. The multi-vehicle compatible welding fixture of claim 1, wherein: The gas distribution block (12) is arranged on the top of the main body (1).
6. The multi-vehicle application welding fixture of claim 1, wherein: The lifting ring (13) is fixed on the top of the main body (1), and the number of the lifting ring (13) is four.