车床跟刀架是径向支撑旋转工件的辅助装置,加工时,与刀具一起沿工件轴向移动。针对某车间现有传统车床跟刀架支承爪磨损严重的问题,借用滚动轴承改进设计了一种新型跟刀架,利用滚动摩擦代替滑动摩擦。经实践检验,该方法效果良好,有效地解决了支承爪的磨损问题。 Lathe with the knife holder is a radial support rotating workpiece auxiliary device, processing, together with the tool along the workpiece axial movement. Aiming at the problem of serious abrasion of the existing traditional lathe in the workshop and the support claw of the tool rest, a new type of tool rest was designed and improved by using the rolling bearing, which uses the rolling friction instead of the sliding friction. The practice test shows that the method works well and effectively solves the problem of bearing claw wear.