在机床的维修或大修理时,车床主轴瓦因“抱轴”或轴瓦研伤,但只要研伤部位没有呈流态或形成疤痕,一般不必更换新瓦。我们在维修和大修时对1650、1660、1670、1680、1682A 车床丧失旋转精度的主轴瓦均采用瓦内外圆矫正后加粘接的修复工艺方法使其再生利用。修后主轴的旋转精度及加工工件精度均达到了工艺技术要求。工艺措施如下:1、旧主轴瓦拆下后如果 When repairing or overhauling the machine tool, the main bearing of the lathe is damaged due to the “axle of the bearing” or the bearing bush. However, it is not necessary to replace the new one as long as there is no flow or scarring in the site of the injury. We repair and overhaul the 1650,1660,1670,1680,1682A lathe loss of rotational accuracy of the main bearing bush are used after the outer circle of orthodontic and adhesive repair process to make it recycle. After the repair of spindle rotation accuracy and precision machining parts have reached the technical requirements. Process measures are as follows: 1, after the removal of the main bearing bush if