摘要
切削加工中刀具出现磨损或崩刀是影响工件加工精度、表面粗糙度和机床运行效率的关键因素,因此刀具加工时状态的在线监测具有重要意义。为了监测加工中心加工过程中刀具异常情况,提高工件的加工质量、机床运行效率和刀具的使用寿命,搭建了基于电流传感器采集电流信号的刀具异常监控系统,通过开展切削加工实验,分析了加工时主轴电流信号的时域和频域特性,获得各信号的关联关系,实现通过监测主轴电流信号间接监测刀具加工状态。结果表明,本系统具有较高的识别精度和可靠性,为实际加工过程中刀具异常状态的监测以及后续工艺优化提供了参考。
In CNC machining center machining,tool wear or tool collapse is a key factor affecting workpiece machining accuracy,surface roughness and machine tool operating efficiency,so the online monitoring of the state of the tool processing has very important significance,in order to monitor the abnormal situation of the tool in the machining center processing,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.
作者
张瑞强
於双月
蒙旭喜
Zhang Ruiqiang;Yu Shuangyue;Meng Xuxi
出处
《工具技术》
北大核心
2024年第8期156-160,共5页
Tool Engineering
关键词
在线监控
时域与频域
动态切削
online monitoring
time domain and frequency domain
dynamic cutting