保证转子支架外圆键槽位置度的措施

Measures to Ensure the Position Tolerance of Excircle Keyway on Rotor Frame

为了保证转子支架外圆键槽的位置度而采用对刀块，介绍对刀块的结构、特点和使用效果。

Aligners are applied to ensure the position tolerance of excircle keyway on rotor framce. Structure, characteristics and function of the aligner are described in this paper.