Design of the Inner Helicoids of Screw Motor Stator’s Steel Casing and Studying of NC Manufacturing Technology

摘要

According to the forming principle of equidistance curves, a mathematical model was concluded to calculate the curve contour of the cross section of the metal stator which has an inner helicoids and has an equal thickness rubber bushing using the primitive parameters of hypocycloid. By studying the cutting manufacturing technology of complex inner surface in slim parts, the feasibility of manufacturing large lead spiral inner surface by planning is studied and an NC envelop planning processing technology is proposed to manufacture the motor stator. The study of cutting simulation and cutting test provides the necessary theoretical support to the design of NC equipment and to cutting parameter optimization.