Aiming at the unsystematic simultaneous engineering analysis for vehicle body final assembly and frequent late design changes and production line modifications in domestic auto enterprises, this paper adopts 3D simulation, process inspection, cost comparison and CAE verification. It analyzes body hanging holes, side skirts, doors, hinges, anti-collision beams and body accessories of a mass-produced vehicle, and proposes solutions to assembly interference, positioning deviation, poor sealing and insufficient operating space. The results show that advanced simultaneous engineering in design phase can avoid production risks, and tooling transformation is more economical. The optimized schemes meet requirements and provide reference for standard analysis and process optimization.

Simultaneous Engineering  /  Body Final Assembly  /  Assembly Analysis  /  Process Optimization  /  Production Adaptation