加工中心铣刀破损的功率监控

Power monitoring of milling cutter breakage on machining centers

刀具磨损、破损的在线监控是ＦＭＳ的基本功能之一。本文介绍一种用检测主轴电机动率的方法来监测刀具破损的系统。功率原始信号经离散自回归ＡＲ模型处理，利用信号的实测值与模型预测值之间的预测偏差来判断刀具的破损。

The on-line monitoring of tool wear and breakage is one of the basic functions of FMS. In this paper, a system for monitoring tool breakage by detecting the power of spindle motor is introduced. By processing the original power signal with dispersing autoregressive model AR, the difference between the measured value and the forecasting value of the model is used to judge the tool breakage.