【摘要】 详细叙述了在自动化加工中用霍尔电流传感器和流体传递信号的新型声发射（ＡＥ）传感器，联合监测主轴电机电流和加工中的ＡＥ信号，综合判断刀具破损的原理、监控方案和实验结果．该系统可自动识别直径为０．６ｍｍ以上的钻头破损，面积大于０．２ｍｍ２的镗刀、铣刀破损，准确率达９８％以上．更多还原

【Abstract】 A technique of detecting cutting fracture by simultaneous monitoring both the spindle motor motor and acoustic emission (AE) during the cutting process is reported.A holler current sensor and a new type of AE sensor which transmits the AE signal through the lubricant are used to catch the required signals. The comprehensive estimation principle of cutting tool fracture, monitoring plan, and experimental results are introduced. The drills breakage with diameter over 0.6mm and turning and milling cutters’crack with area over 0.2mm2 can be detected automatically by the system The rate of success in detection approaches 98% or higher.更多还原