活顶尖是车工常用的工具,它磨损后修磨比较困难。为此,我们采用如图1所示方法,在万能工具磨床上修磨,既简单又可靠。修磨时,将工件头架上原皮带轮全部拆掉,把要修磨的活顶尖4插入万向套筒内套3的锥孔内,并用螺钉1将万向套筒外套2及内套3固定成一体,令其不能带动活顶尖壳体转动。调整工件 Live top is a common tool for car workers, it is more difficult to wear after grinding. To this end, we use the method shown in Figure 1, grinding on the universal tool grinding machine, both simple and reliable. When grinding, remove the original pulley of the workpiece head frame, insert the live tip 4 to be grinded into the tapered hole of the universal sleeve inner sleeve 3, and fix the universal sleeve outer sleeve 2 and the inner sleeve 3 with the screws 1 Into one, so that it can not bring the living top shell rotation. Adjust the workpiece