This paper introduces a locating device drived by electromagnet that can be used for rebuilding of the universal grinding machine to realizes once grinding process for double raceways.

• 介绍一种采用电磁铁驱动的砂轮修整定位机构,用于单沟道轴承磨床改造,实现轴承套圈双沟道一次磨削和自动磨削。