White Car Body Welding Production Line Design And Virtual Design Technology

Car Body-In-White, which is a "steel-structure", is an important component of a car, it is one of the four main components of a car and the most important load-carrier of a car. Welding is one of the most frequently manufacturing methods during the process of car Body-In-White making. The quality, accuracy and productivity of car body welding have a direct influence for that of a car. Under the mass production, production line is a helpful tool for improving the quality and the productivity which is still helpful for the car Body-In-White welding process.This thesis researched on the methods of the design for Car Body-In-White welding line and the application of Virtual Manufacturing in line design, the research based on the result of several welding lines' design work. The work have done are as follow:1. The methods of the design for Car Body-In-White welding line has been discussed systematically, the methods for total plan design and detail equipments design are discussed respectively.2. The welding line balance design methods for Car Body-In-White was proposed and it has been carried out in the design of a main welding assembly line for a car.3. The principle and type of the line layout design has been discussed, then a new line layout design method which is based on Virtual Manufacturing has been proposed and a layout design for a manual welding cell has been realized.4. The design of conveyor system for welding line has been discussed in detail, the problems, which are difficult for Car Body-In-White welding line design, of power design and shock-absorption have been solved and a main welding line conveyor system design has been realized based on the solution.5. The design method for Car Body-In-White welding fixture and design distinguishing has been discussed. The optimum design of oscillating cylinder link mechanism, which is very frequently used in welding fixture, has been realized.6. The Virtual Manufacturing and its application have been discussed and the fundamentals and program and for Car Body-In-White welding line design based on VM have been proposed. At last, the virtual simulation of a manual welding station for a car's body-side outer has been realized based on ROBCAD.