在螺纹滚压加工中,经常会碰到如图1所示的零件。这类零件形状较为复杂,螺纹的径长比大,零件的重心偏离螺纹轴线,液压加工螺纹时,手无法扶持螺纹零件,操作困难,滚压螺纹的牙型半角不合格。 In the thread rolling process, often encounter the parts shown in Figure 1. The shape of such parts is more complex, the diameter ratio of the threads is large, and the center of gravity of the part deviates from the axis of the thread. When the thread is machined hydraulically, the hand can not support the threaded parts and the operation is difficult. The thread half angle of the thread is unqualified.