床身导轨是机床各种部件组成的精度基准,它的质量如何,决定着机床的精度。在机床大修中,床身精度的恢复是个关键,而床身精度的恢复,关键又取决于导轨面精加工的工艺方法。采用刮研,生产效率低,体力消耗大;采用磨削,由于磨头主轴转速高,又是干磨(一般络理单位 Bed rail is composed of various parts of the machine tool precision benchmarks, its quality, determines the accuracy of machine tools. In the machine overhaul, the recovery of the bed accuracy is a key, and the recovery of the bed accuracy, the key depends on the rail surface finishing process. The use of scraping, low productivity, physical exertion; using grinding, grinding head spindle speed is high, but also dry (general unit of collation