关键词: 辅助磁极, 可编辑逻辑控制器(PLC), 中频点焊, 伺服分度, 永磁起动机

Abstract: The stator of permanent magnet starter is composed of a machine case, main magnetic pole and auxiliary magnetic pole. According to the welding process requirements of auxiliary magnetic pole, the automatic welding equipment of auxiliary magnetic pole of permanent magnet starter was developed. The equipment was mainly composed of the shell feeding and indexing mechanism, the auxiliary bar feeding mechanism, the pressure mechanism, the shell lifting mechanism, the middle frequency welding mechanism and the control cabinet. The control system adopted touch screen as human-machine interface, PLC as control core, servo indexing and intermediate frequency welding. The functions of automatic return to origin, automatic welding, manual welding, repair welding and automatic fault alarm were realized. The actual operation of the equipment was stable, reliable and accurate, which further improved the production quality and efficiency.

Key words: auxiliary magnetic pole, programmable logic controller (PLC), middle frequency spot welding, servo indexing, permanent magnet starter