电火花微细电极标准球在线检测方法

On-line Measurement by Standard Sphere in Micro EDM

设计了标准球电极在线测量系统,它由标准球、支杆及待测电极构成。介绍了测量系统的使用方法,并对其测量误差进行了分析。做了块状电极反拷测量试验,结果表明:系统能准确有效地对电火花微细电极进行在线测量,测量值与非接触式三坐标测量机离线测量值的相对误差小于5%,从而实现了电火花加工微细电极简单、快捷的在线测量。

An on-line measurement system which is composed by standard sphere,support rob and under-tested electrode was proposed. The usage of this measurement system is introduced along with its measure error analysis. The result of WEDG experiment shows that this measurement system can survey online-fabricated electrode accurately and effectively. It shows that the relative error between the on- line measurement system and the non contacting optical measurement system is less than 5 %. This measurement system provides a novel way for the survey of online fabricated electrodes in micro EDM.