白车身焊接路径的数字化工艺仿真研究
Research on Digital Process Simulation of Welding Path for Car Body
陈志澜 1孙新1
作者信息
- 1. 上海海洋大学 工程学院,上海 201306;上海建桥学院 机电学院,上海 201306
- 折叠
摘要
针对传统人工焊接路径规划不稳定性问题,在原有遗传算法中,把长度值作为唯一评价值的基础上,提出一种由惩罚值和长度值共同构建的适应度函数,来解决焊接路径的不稳定性问题.针对现场调试效率低问题,通过建立实际焊接工位的三维模型,对整个焊接工位编制PLC(可编程逻辑控制器)控制程序进行过程仿真和虚拟调试,来解决焊接过程中存在的干涉现象,验证焊接工位工作流程的顺序、布局合理和解决现场调试效率低问题.研究结果表明:改进后的焊接路径比原人工焊接路径在时间上缩短近15％,提高了焊接路径的稳定性.通过过程仿真修正预期焊接过程中的干涉现象、工作流程顺序合理、PLC程序优化和虚拟调试等手段,降低现场的调试时间,提高了焊接工位的调试效率.
Abstract
In response to the instability problem of traditional manual welding path planning,a fitness function combining penalty values and length values is proposed in the genetic algorithm.To address the issue of low efficiency in on-site debugging,a three-dimensional model of the actual welding station is established,and a PLC control program is developed for process simulation and virtual debugging of the entire welding station,thus solving the interference phenomenon during the welding process and verifying the sequence and layout of the welding station workflow.The research results indicate that the improved welding path reduces the time by nearly 15％compared to the original manual welding path,improving the stability of the welding path.By ccorrecting the interference phenomena during the expected welding process through process simulation,setting a reasonable workflow sequence,optimizing the PLC program and virtual debugging,on-site debugging time is reduced and debugging efficiency of welding stations is improved.
关键词
白车身/焊接路径/虚拟调试/过程仿真Key words
car body/welding path/virtual debugging/process simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据