The importance of fixtures in the automotive industry
The effectiveness of the fixture design is to control the body size. First, the fixture process plan is designed, the production cycle is determined according to the production plan, the welding spot planning, the body structure is divided into seven sub-assemblies, then the welding process design is completed, and the welding tree is completed. , According to the product process analysis, combined with the balanced design of the entire assembly line, while ensuring smooth flow of people, planning a welding line plan, according to the structural characteristics of the sub-assembly of the engine room, the number and location of the positioning points and clamping supports are analyzed and determined Solder spot distribution and positioning clamping method. Computer-aided design of the fixture using CATIA software, designing the base plate, L-seat, positioning pin, pressing block, etc., which not only improves the design accuracy, but also shortens the research and development cycle, and divides the cabin data into the CATIA software. Fixtures are assembled together, their clamping is simulated, and the feasibility and ease of operation of the fixtures are analyzed. The design principles of the inspection tool are briefly introduced. The engine room subassembly welded on the improved fixture is placed on the inspection tool and compared with the body data to verify the effectiveness of the improved fixture on body size control.