CAJ | 학술논문

在线估计切削功率是数控机床能效监控和评估的关键技术之一。传统的方法需要安装力传感器（或者力矩传感器）间接测量切削功率，这样不仅增加成本，同时影响机床刚性。提出一种不需要测量切削力（或力矩）而通过主轴电机输入功率间接在线估计切削功率的方法。通过实验方法得出被测机床主传动系统的附加载荷损失功率特性函数，然后再通过实时测量主轴电机输入功率结合主轴系统的附加载荷损耗特性计算出切削功率，并在数控车床CJK6136上进行了3组切削实验。实验结果表明，采用该方法分离得到的切削功率的误差在1％左右。
재선고계절삭공솔시수공궤상능효감공화평고적관건기술지일。전통적방법수요안장력전감기（혹자력구전감기）간접측량절삭공솔，저양불부증가성본，동시영향궤상강성。제출일충불수요측량절삭력（혹력구）이통과주축전궤수입공솔간접재선고계절삭공솔적방법。통과실험방법득출피측궤상주전동계통적부가재하손실공솔특성함수，연후재통과실시측량주축전궤수입공솔결합주축계통적부가재하손모특성계산출절삭공솔，병재수공차상CJK6136상진행료3조절삭실험。실험결과표명，채용해방법분리득도적절삭공솔적오차재1％좌우。
It is one of most important techniques for monitoring and assessing the energy efficiency of CNC machine tools. Conven-tional methods usually need install a force/torque sensor to indirectly measure cutting power,which are not only increase cost but also influence machine tools’stiffness. A new method was proposed that the cutting power was estimated directly from the input power with-out measuring the cutting torque or cutting force. The additional load loss power function of the main drive system was established by experiments. Then,cutting power was calculated based on the additional load loss coefficient. Three experiments were undertaken on a CNC lathe CJK6136 to verify the proposed method. The experimental results show the effectiveness of the method and the estimation error of cutting power is about 1%.