加工成批轴类工件时,可自制如图所示的伸缩死顶尖,此顶尖装卡工件不需停车,减少辅助时间,提高工作效率。伸缩死顶尖主体4插入车床主轴孔内,开动车床,将工件中心孔对准伸缩死顶尖,同时摇动床尾顶尖。由于工件受力推动伸缩顶尖5后移到一定位置,工作端面扎入三拨 When processing a batch of shaft type workpieces, it can be self-made as shown in the figure, and the top of the telescopic die can be stopped without parking, thus reducing auxiliary time and working efficiency. Telescopic dead center body 4 into the lathe spindle hole, start the lathe, the workpiece center hole aligned telescopic dead center, while shaking the end of the bed tail. Due to the work force to promote the retractable top 5 after the move to a certain position, the work end into three dials