Design And Optimization Of Welding Fixture For Body In White Based On Virtual Prototyping

Welding is the key point of automobile manufacturing.The accuracy and quality of welding have a direct impact on the quality of the whole vehicle.Therefore,the design and manufacture of welding fixture are extremely important in the design of welding line.The virtual prototyping technology is used to design and optimize the structure of the welding fixture of body in white,to improve the design accuracy of the fixture,to shorten the production cycle of the fixture,and to ensure the quality and efficiency of welding for body in white.This paper takes the automatic welding fixture of the rear floor in a certain vehicle as the research object,carries on the station assignment and the workshop layout,emphatically analyzes the welding procedure,the welding spot assignment and welding gun selection of the station.Virtual digital design and technology are used to design and optimize the structure of welding fixture,to carry on static analysis of BASE board and clamping arm,and to verify whether the strength of the structure meets the operational requirements.Based on the digital platform of Process Designer & Simulate,I use the three-dimensional layout in the fixture,robot,gripper and workshop,simulate the welding process of the robot,ensure that there is no interference in welding production,and estimate the production speed of the stations,and ensure the smooth development of welding work.