在加工轴类零件时,使用圆柱齿外拨顶尖,效果较好。防滑齿齿纹加工方便,在铣床或车床上均能加工(车床上用直纹滚花刀)。在使用中局部齿纹磨损后,只要把圆柱齿转动一个角度,即可继续使用。所以,这种新结构的外拨顶尖,使用寿命大大高于整体内齿外拨顶尖,而且工作性能稳定。工具的制造精度影响工件的加工精度,制造工具时,应使三个带齿圆柱体 In the processing of shaft parts, the use of cylindrical gear outside the tip, the better. Non-slip teeth tooth pattern processing convenience, can be processed in the milling machine or lathe (lathe with straight knurl). In the use of local tooth wear, as long as the cylindrical tooth rotation angle, you can continue to use. Therefore, the new structure of the top of the dial out, the service life is much higher than the overall internal gear outside the top, and the work of stable performance. Tool manufacturing accuracy of the workpiece processing accuracy, the manufacture of tools, should be three toothed cylindrical body