螺旋转子三维建模与数控编程技术研究

对螺旋转子端面型线组成、数学描述进行了分析,研究了螺旋转子端面型线和三维模型的构造方法,在UG环境下建立了螺旋转子三维实体模型。在分析研究螺旋转子四轴加工方式的基础上,在UG中采用可变轴轮廓加工方法对螺旋转子进行数控编程,生成了基于球刀铣削的螺旋转子四轴加工刀具轨迹,对产生的刀具轨迹进行了动态加工仿真,验证了刀具轨迹的可行性。

Research on 3D Modeling and NC Programming of Helical Rotors

The constitution and mathematic expression of the end face profile are analyzed for helical rotors. The constructing methods of the end face curves and helical rotor 3D model are discussed, and a 3D solid model of helical rotor is constructed under the environment UG. On the basis of discussing four-axis machining approach of helical rotor, a variable contour machining schema is used in UG for NC programming of helical rotor. The four-axis tool path of the helical rotor is generated on the ball cutter. The dynamic process simulation of tool path is implemented, which verify the feasibility of the generated tool path.