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车床大修后,由于床身导轨的磨削、大拖板导轨的刮削以及机床大修后的磨损量,使溜板箱开合螺母中心线位置下降。尤其当导轨咬毛,需刨后再磨削时,下降量更大。为了解决走刀箱丝杆传动轴中心、丝杆挂脚中心与溜板箱开合螺母中心的等高问题,目前一般采用如下方法。一、介绍几种方法第一种方法降低走刀箱和丝杆挂脚的位置,以保证与开合螺母中心线重合。这种方法须同时解决下列三个问题,故很少采用。(1)有的机床(例如C620-1)床身在安装走刀箱位置上有一个基准定位面,要移下走刀箱,必须将床
After lathe overhaul, due to the grinding of the bed guide, scraping of the large carriage guide rail and the amount of wear after overhauling the machine, the position of the centerline of the opening and closing nut of the slide box is lowered. Especially when the guide biting hair, after grinding and planing, the amount of descent greater. In order to solve the screwdriver drive shaft center, screw hanging center and slide box open nut center contour, the current general use of the following methods. First, introduce several methods The first method to reduce the feed box and screw hanging feet position to ensure coincide with the opening and closing nut centerline. This method must simultaneously solve the following three issues, it is rarely used. (1) Some machine tools (for example, C620-1) bed in the installation of the feed box has a datum positioning surface, to remove the walk box, the bed must be