According to the relative position of the rotor of the screw motor and the milling cutter, the coordinates of the helicaltooth form and the cutter are-established.
根据螺杆钻具转子加工时与铣刀的相对位置，建立空间螺旋齿面坐标系和铣刀坐标系。
2
The torque is partitioned on both helicaltooth, this brings the advantage of a lower strain on the single teeth and a higher stiffness as well as a more compact design of the gearbox.
扭矩被分配在人字齿的两边，带来的优势是单边齿轮上小的应力及更高的刚性，以及使齿轮箱有更紧凑的设计。
3
The NC machining method by using a simple milling tooth device and the forming principle of bevel helical milling cutters are introduced.