我们知道,标准铣刀是不能直接装入镗床和摇臂钻床主轴内的,因为铣刀是靠其柄部内螺纹通过拉杆将其拉紧,使铣刀柄部莫氏圆锥面紧紧地与机床主轴莫氏圆锥孔配合,从而起到定心及传递扭矩做切削运动的作用。但是,镗床及摇臂钻床的主轴不能使用拉杆来装夹刀具,而是靠主轴内带舌尾莫氏 We know that the standard milling cutter can not be directly loaded into the main shaft of the boring machine and the rocker drilling machine because the milling cutter is pulled by the internal thread of the shank through the pull rod so that the Morse conical surface of the milling cutter handle closely contacts the machine tool Spindle Morse taper hole with, so as to play the role of centering and torque transfer cutting movement. However, the spindle boring machine and radial drilling machine can not use the lever to clamp the tool, but by the spindle with the tongue-tailed Mohs