高速磨削技术的经济意义在于降低磨削机动时间 ,提高生产率 ,提高磨削表面加工精度。改装外圆磨床 ,使我国大部分七十年代末生产的现正在使用的磨床提速作业 ,增加效益。本文提出了改装措施 ,对外圆磨床提速改造具有实际指导意义 ,并对如何选择高速磨削时的砂轮 ,提出了理论分析及选择方法 The economic significance of high-speed grinding technology is to reduce grinding maneuvering time, improve productivity and improve the grinding surface machining accuracy. Cylindrical grinding machine modification, so that most of our production in the late seventies are now using the grinding machine speed operation, increase efficiency. In this paper, the modification measures are put forward, which have practical guiding significance to the revolving speed improvement of the external grinder, and the theoretical analysis and the selection method are put forward on how to choose the grinding wheel in high speed grinding