曲面数控加工的过切故障建模及监控  

ESTABLISHMENT OF MODELS AND ON- LINE MONITORING ABOUT THE FAULT OF OVER-CUTTING IN CNC MANUFACTURING

作　　者：赵继[1] 许树新[1] 祝佩兴[1] 乐观[1] 

机构地区：[1]吉林大学机械科学与工程学院,长春130025

出　　处：《机械工程学报》2001年第9期80-82,87,共4页Journal of Mechanical Engineering

基　　金：吉林省科技发展计划基金资助项目(19990502)。

摘　　要：论述了数控加工中过切故障产生的原因。在建立刀具对工件发生过切模型的基础上，进一步 提出了临界过切点的数学模型。通过试验研究，并采用小波分析技术进行了过切故障的状态 识别，表明本方法能有效地进行过切故障的监控。The principle of the fault of over-cutting in CNC manufacturing is discussed. A physical model of over-cutting which happens between the tool and the work-piece is presented. On the basis of that, the mathematic model of the critical point of over-cutting is given Simulating experiment is done and wavelet transform is used to identify the phase of over-cutting, the results show that this mean is very efficient in on-line monitoring of the fault of over-cutting.

关 键 词：数控加工 过切 小波分析 监控 曲面加工 机械制造 数字模型 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TH165.2[机械工程—机械制造及自动化]