[问]为什么车床大修后,溜板箱手轮会超重?[答]车床大修,一般采用刮修床身导轨,使床身精度恢复正常,由于使用程度不同,有的床身导轨甚至需要经过刨削后,再刮削才能达到精度标准要求,这样导轨面的公称尺寸就有所改变。当床鞍与床身导轨配研后,虽然两配合面之间精度达到了要求,但溜板箱上的开合螺母中心线与送刀箱和后轴承架的中心线必然有一位移,在装配时,有的检修人员往往忽视了这一环节,按原有的位置装好溜板箱,同时又不改变送刀箱和后轴承架的中心线位置。这样使丝 [Q] Why after the overhaul lathe, skateboard handwheel will be overweight? [A] overhaul lathe, the general use of scratch repair bed rails, bed accuracy returned to normal, due to the use of different degrees, and some bed rails even need to go through Planing, and then scraping to achieve accuracy standards, so the nominal size of the rail surface will be changed. When the bed saddle and bed rail with the research, although the precision between the two meet the requirements, but the opening and closing of the box on the box nut and the feed box and the center line of the rear bearing must have a shift in the assembly When some maintenance personnel often overlook this part, according to the original position mounted skateboard box, without changing the center line of the delivery box and the rear bearing frame position. This makes silk