摘要
介绍了在加工过程中同时监测主轴电机电流和声发射信号,综合实时判断车刀、钻头等刀具的破损和极限磨损的原理;监测系统框图以及实验方案、实验结果.该系统可自动识别直径0.8mm 以上的钻头破损,大于面积0.2mm^2的车刀破损和极限磨损,成功率达96%以上。
A technique of detecting cutting tool fracture and ultimate wear by si- multaneously monitoring both the spindle motor current and cutting process related acoustic emission(AE)in the cutting process is reported.The technique can detect breakage of drills having diameter over 0.8mm,turning cutter crack of area over 0.2mm,and the ultimate wear.The principle,system construction,experimental method and result of the technique are discussed.The ratio of success in detection approaches 96% or higher.
关键词
在线
监测
声发射/刀具破损
电机电流
on-line monitoring
acoustic emission/tool fracture
motor current
