智能数控机床加工状态监测EtherCAT从站设计  

The Design of EtherCAT Slave Station for State Monitoring on Intelligent CNC Machine Tools

作　　者：韦文姬 何岭松[1] 吴玉叶 WEI Wen-ji;HE Ling-song;WU Yu-ye(School of Mechanical Science ＆ Engineering,Huazhong University of Science and Technology,Wuhan 430074,Chin)

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《装备制造技术》2018年第6期1-4,8,共5页Equipment Manufacturing Technology

基　　金：国家科技重大专项"高档数控系统关键共性技术创新能力平台(二期)"(2015ZX04005007)

摘　　要：EtherCAT是目前主流的智能数控机床采用的总线技术,数控系统利用该技术建立了与操作面板、IO单元和伺服驱动器之间的高速实时数据交换通信。提出了一种基于EtherCAT总线的数控机床加工状态监测从站设计方法,能采集外部传感器信号与机床工作任务数据,从中提取出加工状态特征量并反馈给数控系统。应用该从站在华中8型数控系统上完成了一个加工过程振动信号监测的实验,协助数控系统对异常状况进行诊断,证明了其可行性。EtherCAT is a mainstream fieldbus used in intelligent CNC machine tools. It builds up the high speedand real time data exchange between CNC system and the units of MCP,IO,servo driver. This paper presentsadesign method of EtherCAT slave station,which can acquire external sensing signal and work tasks of CNC machine tools,to extract the feature of machining state and feed it back to CNC system. Utilizing such slave station,we monitor the vibration signal during the work process of a CNC machine tool based on HNC-8 system. The slavestation helps the NC system to diagnose abnormal status and the experiment demonstrates the feasibility of this design method.

关 键 词：EtherCAT从站 状态监测 数控机床 数据采集 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]