摘要
为了监测铣床加工过程的铣刀异常情况,延长铣刀的使用寿命,以难加工材料高温合金为研究对象,搭建了多传感器采集系统包括切削力信号、电流信号、以及振动信号采集系统;开展了切削加工实验,研究了不同每齿进给量、切削速度、切削深度影响下的切削力、主轴电流、以及振动信号变化规律;分析了切削力信号和主轴电流信号和振动信号的时域和频域特性,获得了各信号之间的关联关系;建立了电流信号到铣削力的间接监测模型,实现了通过监测主轴电流信号间接监测加工过程中的动态切削力信号,并结合振动信号辅助监测,为实际加工过程中动态切削力的监测以及后续的工艺优化提供参考和指导意义。
In order to monitor the abnormal situation of milling cutter in the machining process of milling machine,and prolong the service life of milling cutter,this paper takes the refractory superalloy as the research object,and a multi-sensor acquisition system is built,including cutting force signal,current signal and vibration signal acquisition system;Cutting experiments were carried out,and the variation laws of cutting force,spindle current and vibration signal under the influence of different feed rate per tooth,cutting speed and cutting depth were studied;The time domain and frequency domain characteristics of cutting force signal,spindle current signal and vibration signal are analyzed,and the correlation between each signal is obtained.Finally,the indirect monitoring model from current signal to cutting force is established to indirectly monitor the dynamic cutting force signal in the machining process by monitoring the spindle current signal,and combined with the auxiliary monitoring of vibration signal,which provides reference and guiding significance for the monitoring of dynamic cutting force in the actual machining process and subsequent process optimization.
作者
李响
徐兴伟
安庆龙
明伟伟
陈明
LI Xiang;XU Xing-wei;AN Qing-long;MING Wei-wei;CHEN Ming(School of Mechanical and Power Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《组合机床与自动化加工技术》
北大核心
2022年第8期156-159,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金(U1937208)。
关键词
切削力
刀具磨损
加工参数
间接监测模型
cutting force
spindle current
cutting parameters
indirect monitoring model
