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在大搞技术革新和技术革命运动中,活动后顶尖。经过多次用于外圆磨床上,1所示。这种活动后顶尖有如下的特点:1)应用这种活动后顶尖,可以不用桃子夹头带动工件转动。它依靠磨床顶尖尾架的弹簧压力,使活动后顶尖顶紧工件的中心孔口缘,或中心孔倒角,或中心孔。借磨擦力带动,所以辅助时间大大减少;我厂采用了一种比较新颖的高精度磨削质量和效果都很好。结构如图
In the major technological innovation and technological revolution movement, the event after the top. After several times on a cylindrical grinder, 1 is shown. The top of this activity has the following characteristics: 1) The top of the application of this activity, you can not peach chuck drive the workpiece rotation. It relies on the spring pressure of the top tailstock of the grinding machine to chamfer the center hole or center hole, or the center hole, of the top-tight workpiece. Driven by friction, so the auxiliary time is greatly reduced; I plant a new high-precision grinding quality and effectiveness are good. Structure as shown