一、高速挑扣自动退刀装置刀杆结构与工作原理:(见图1)。 (1)工作时,先将凸轮扳手13旋转90°,将刀体1顶出,弹簧12被压缩,此时,可进刀挑扣; (2)当挑扣终止时,凸轮扳手13与安装在床身导轨上的定位块碰撞后,凸轮扳手13回到原来位置,刀体1在弹簧12的张 First, the high-speed automatic buckle withdrawal device Arbor structure and working principle: (see Figure 1). (1) When working, firstly, the cam wrench 13 is rotated by 90 ° to eject the cutter body 1 and the spring 12 is compressed, at this time, the pick-and-buckle may be fed; (2) When the pick-up is terminated, After the positioning block on the bed guide rail collides, the cam wrench 13 returns to the original position, and the cutter body 1 opens on the sheet of the spring 12