Research on Tool Anomaly Monitoring Based on Spindle Current Signal
In CNC machining center machining,tool wear or tool collapse is a key factor affecting workpiece machi-ning accuracy,surface roughness and machine tool operating efficiency,so the online monitoring of the state of the tool pro-cessing has very important significance,in order to monitor the abnormal situation of the tool in the machining center pro-cessing,to improve the machining quality and extend the service life of the tool,a tool anomaly monitoring system is built based on current sensor to collect current signals. By carrying out machining experiments,the time domain and frequency domain characteristics of spindle current signals during machining are analyzed,and the correlation between each signal is obtained,the indirect monitoring of dynamic cutting tool state during machining is realized by monitoring spindle current signals. The system has high recognition accuracy and reliability,and provides reference for the monitoring of tool abnormal state in the actual machining process and the subsequent process optimization.
online monitoringtime domain and frequency domaindynamic cutting