我厂X209龙门铣床由于存在爬行,在加工工件时主铣刀经常碰刀,工件几何精度差,铣出的槽两侧面产生不规则的形状,造成产品严重报废。针对这些问题,我们将原机床靠柱塞油泵供油给导轨箱和蜗杆箱的润滑装置进行改进,全部采用MoS_2润滑。通过2～3年的试用,不仅解决了导轨爬行及碰刀问题,而且提高了工件的几何精度和光洁度,具体做法如下: X209 milling machine because of my existence crawling, the main cutter in the processing of the workpiece often touch the knife, the workpiece geometry is poor, both sides of the milling groove has an irregular shape, resulting in serious scrapped products. In response to these problems, we will improve the lubrication of the original machine by the plunger pump oil supply to the rail box and worm box, all using MoS_2 lubrication. After 2 to 3 years of trial, not only solved the problem of crawling and touch the knife rail, but also improve the geometric accuracy and finish of the workpiece, as follows: