基于工业机器人, 总体上采用分层递阶结构, 控制模块间采用I/O口外部电路连接、程序协调的方法, 研制出用于动力电池外壳封装的激光自动化焊接系统。经调试后对具有复杂几何尺寸电池外壳进行焊接试验, 在同一工艺参数下, 采用两种不同的轨迹进行焊接, 对比分析两种焊接轨迹对焊缝成形的影响及经济性。实验结果表明, 基于机器人自动化波浪线焊接的焊缝连续性、一致性较好, 可实现多工位连续焊接, 加工效率是普通工作台的3 倍。设计实现的激光自动化焊接系统为我国动力电池封装提供了参考。

Based on the industrial robot, using hierarchical structure on the whole, and the control module is connected by external I/O interface circuit and program coordination method, the automatic laser welding system is developed for automobile power battery packing. After debugging, welding experiments with complex geometrical size battery shell were carried out. With the same parameters, two different kind trajectories were used for welding and the effects of the two kind trajectories on welding shape and economy were analyzed. The results indicates that, the continuity and consistency of wavy welding is good, and robot automatic welding can realize multi-position continuous welding, the efficiency of this method is 3 times of the ordinary working bench. The development of automated laser welding system provides references for power battery packing.