(1)我厂产品SQZ2804重棍磨床,试车阶段爬行严重,影响磨削光洁度。其原因有二:①工作台与导轨处于“跑合阶段”,摩擦阻力大;②工作台运动形式属重荷,低速。开始我们只从机械传动、装配质量、导轨水平等方面考虑问题,但未能彻底消除爬行。最后分析了导轨用油品种,改用40号导轨油代替原设计的20号机械油,试用后,爬行消除,磨削光洁度提 (1) Our factory product SQZ2804 heavy grinder, crawling test stage serious, affecting the grinding finish. There are two reasons: ① table and rail in the “run-in stage”, the frictional resistance; ② table movement is a heavy load, low speed. At first we only considered the issues of mechanical transmission, assembly quality, guideway level, etc., but did not completely eliminate the crawling. Finally, the type of guide rail oil was analyzed, instead of No. 40 rail oil instead of the original design of No. 20 machine oil, after the trial, the crawl to eliminate, grinding finish