本文运用成组技术原理，在对注塑模具零件结构特点和功能分析的基础上，对注塑模具零件的结构与工艺特征的分类标志进行总结，制定了一套适用于注塑模具零件的分类编码系统。
According to GT principle, a set of coding system for injection mold is built on the base of injection mold structure feature and function analysis by sorting out the classification mark.
自动对刀原理是在滚刀轴和工件轴上各加装一光电编码器，合理设置各轴光电编码器零位信号与各自的机械零位重合。
By installing two photoelectric encoders on the hob axis and workpiece axis, the zero position signals of photoelectric encoders coincident with each mechanical zero of two axis is reasonably set.
自动对刀原理是在滚刀轴和工件轴上各加装一光电编码器，合理设置各轴光电编码器零位信号与各自的机械零位重合。
By installing two photoelectric encoders on the hob axis and workpiece axis, the zero position signals of photoelectric encoders coincident with each mechanical zero of two axis is reasonably set.
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