基于在线检测和动态成型前端模块的工艺研究  

Technology Research of Front-end Module Based on Online Measurement and Dynamic Forming Process

作　　者：徐超 吴何畏 黄海 XU Chao;WU Hewei;HUANG Hai(Mechanical Engineering Department,Hubei University of Art and Science,Xiangyang 441053,China;BYD Auto Industrial Co.,Ltd.,Shenzhen 518118,China)

机构地区：[1]湖北文理学院机械工程学院,湖北襄阳441053 [2]比亚迪汽车工业(深圳)有限公司技术中心,广东深圳518118

出　　处：《机械制造与自动化》2024年第1期45-48,共4页Machine Building & Automation

基　　金：湖北文理学院开放基金项目(XKQ2021036)。

摘　　要：通过光学在线测量系统设计,采用Profibus现场总线作为通信协议,使用车身实际测量偏差数据,实时和动态调整前端模块安装点的动态冲压成型工艺参数;对前端模块的累计公差通过动态冲压进行在线修正,使其重新回到x,y,z理论值,实现了前端模块安装点的冲压二次成型。通过公差模拟和实际生产确认,该方法极大地提高了尺寸控制方法的准确性和适应性,在改善前脸尺寸精度上具有很好的可行性,具有推广价值。Through the design of the optical online measurement system and with the Profibus field bus applied as the communication protocol,the actual measurement deviation data of the BIW is used to adjust the molding process parameters of the front-end module installation point in real time and dynamic.The cumulative tolerance of the front-end module is corrected online to make it return to the theoretical position of x,y,and z,which realizes the secondary molding of the front-end module installation point.Tolerance simulation and actual production confirmation are carried out.The designed method greatly improves the accuracy and adaptability of the dimensional control method,has good feasibility in terms of the dimensional accuracy of the front facial and is of promotion value.

关 键 词：在线测量 动态冲压 前端模块 尺寸精度 

分 类 号：U466[机械工程—车辆工程]