旋风切削螺纹中,由于过切量的存在,影响着螺纹加工精度。因此,对旋风切削螺纹时产生过切量的计算和修正,是提高旋风切削螺纹加工精度的重要途径。本文通过系统分析计算,求出最小过切量时旋风头安装的最佳倾角,以提高旋风切削螺纹加工精度。文中公式的推导是以方牙螺纹为例的,但 Cyclone cutting thread, due to the existence of over-cutting, affecting the thread machining accuracy. Therefore, it is an important way to improve the machining accuracy of the cyclone cutting threads that the calculation and correction of the excess cutting amount when the whirlwind cuts the threads. In this paper, through the systematic analysis and calculation, the optimum inclination angle of the cyclone head is obtained when the minimum amount of overcut is obtained, so as to improve the machining precision of the cyclone cutting thread. The formula is derived from square thread, for example, but