基于OPC数据的数控机床精度状态实时测评方法  

The Real-time Evaluation Method of CNC Machine Tool Precision State Based on OPC Data

作　　者：杜柳青[1] 余永维[1] 袁冬梅[1] 

机构地区：[1]重庆理工大学机械工程学院,重庆400054

出　　处：《组合机床与自动化加工技术》2014年第6期46-50,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51305476);"高档数控机床与基础制造装备"国家科技重大专项课题(2012ZX04011-031)

摘　　要：为实现主动预防或主动维修,保证加工质量,提出一种基于OPC和圆运动信息的数控机床误差实时测评方法。建立基于圆信息的机床运动误差分析模型,提出用实时圆信息数据进行数控机床精度状态测评的方法;采用ePS等高端OEM电子检测服务平台思想,设计基于OPC的误差变量实时采集策略,以获得稳定实时圆信息数据,实现对数控机床精度状态的准确测评。实验表明,该方法能实时提取圆运动数据,准确分析直线度、垂直度等数控机床精度,效果好,适用性强。To realize active prevention or repair and ensure the machining quality, a real-time precision evaluation of the CNC machine tool was proposed based on OPC and circular motion information. The motion error analysis model of NC machine tool was established base on circle information. The analysis method of NC machine tool accuracy state was proposed with the real time circle information date. Referring the ideas ePS and other high-end OEM electronic detection service platform, an error variable real-time acquisition strategy based on OPC was designed to obtain stable real-time data of the circle information and realize eval- uation on the movement precision of CNC machine tool. Experiments show that the method can extract circular motion data in real time and analyze accurately the accuracy of CNC machine tools, such as straightness. The performance of this method is good, and its applicability is strong.

关 键 词：机床精度 OPC 圆信息 误差模型 运动误差 

分 类 号：TH166[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]