顶尖特点适用于在车床上车削轴类零件。该顶尖结构简单,工作可靠,在装卸零件时不用停车,节省装夹时间,提高效率。工作原理顶尖6对准被加工零件上一端的中心孔,然后再以尾座旋紧加压,从而使被车削件与顶尖座4上的端面卡爪卡紧(端面卡爪形状与一般离合器端面卡爪形状类似,8个爪齿沿圆周均布),带动被加工工件旋转,进行切削。卸活时只要将尾座顶尖退回,即可取下被加工工件。在更换顶尖座4时,可将丝堵7和顶丝2旋下, Top features Suitable for turning shaft parts in lathes. The top structure is simple, reliable, do not have to stop when loading and unloading parts, saving time and improve efficiency. Working principle The top 6 is aligned with the center hole of the upper end of the machined part, and then the tailstock is screwed and pressed so that the turned part is clamped with the end claw on the top seat 4 (the shape of the end claw is the same as that of the general clutch end face The shape of the claw is similar, the eight claws are evenly distributed along the circumference) to drive the workpiece to be rotated for cutting. When unloading as long as the tailstock top back, you can remove the workpiece. In the replacement of the top seat 4, the screw plug 7 and the top wire 2 can be unscrewed,