Abstract:Aimed at the problem of module missing welding and scrapping caused by wire sticking and wire breaking in the process of cold metal transition(CMT) welding of lithiumion aluminum case battery module, an automatic monitor and intelligent control system of wire end was designed.The welding wire monitoring sensor was installed in the wire feeding cabinet of the welding machine to monitor and upload the welding wire status in real time. According to the monitored welding wire status, control system controlled the welding system to perform module welding, so as to realize the automatic monitoring of the welding wire status and intelligent control of the welding status of the module in the welding process,ensuring stable and reliable production of the module and improving the first pass rate of module welding.By using the welding wire state automatic monitoring and intelligent control scheme, the module welding quality problems caused by wire sticking and wire breaking in the production process of lithiumion battery modules can be effectively reduced, the module welding quality is promoted, equipment mean time between failures (MTBF) is reduced, overall equipment efficiency (OEE) is promoted. The designed system has strong economic and practical significance