在单件小批生产液压管接头时,为使螺纹与接头零件垂直,要求加工时车削一次成型。螺纹一般由车床尾座上装的套丝工具加工。由于有的管接头的细牙螺纹直径较大(如M22×1.5),切削时产生的扭矩和切削力较大,其值常大于以车床套筒中莫氏4号内锥定位套丝工具的外锥结合力,就发生转动。这样,易损坏机床尾座套筒的内锥面,影响加工质量。 In a single small batch production of hydraulic pipe joints, in order to make the thread perpendicular to the joint parts, machining turning required a molding. The thread is generally processed by the threading tool that is installed on the lathe tailstock. Due to the larger thread diameter (such as M22 × 1.5) of some pipe joints, the torque and cutting force generated during cutting are often larger than those of the Moxa No.4 taper locating tools in the lathe sleeve Cone binding force, it occurs rotation. In this way, easy to damage the inner cone of the tailstock sleeve, affecting the processing quality.