Chuzhou Jincheng Metalwork Co.,Ltd , https://www.jinchengscaffold.com The ZA type worm (m_x=4, y=7°35'41′′ and m_x=6, p=9°26′44′′) are used as general-purpose parts in our factory on a variety of drilling rigs. Due to the large tooth shape of the worm, it is easy to deform and vibrate when turning, and even a knives are generated. The production efficiency of turning worms is low and the labor intensity of workers is high. For this reason, we use the method of cyclone milling worms. As shown, the cyclone head 9 is mounted on the middle carriage 13 of the C630 lathe, and a diagonal iron is placed between the cyclone head 9 and the middle carriage 13