CNC铣齿机床加工曲线齿锥齿轮仿真系统的研究

Research on the Machining Simulation System for Cutting Curved Tooth Bevel Gears on CNC Gear Generator

从空间占位角度对曲线齿锥齿轮加工过程进行了分析,得出了建立CNC铣齿机床加工仿真系统的基本思想。以AutoCAD为开发平台,建立了简化后的刀具和齿轮毛坯实体零件库;同时,将CNC铣齿机床各轴运动转化到刀具和齿轮毛坯的相对位置调整,通过刀具和齿轮毛坯的相减布尔运算实现了仿真切齿过程。最后给出了加工仿真实例和实际加工结果,验证了加工仿真方法的正确性。为设计和制造都很复杂的曲线齿锥齿轮加工提供了一个非常形象的加工仿真工具。

The process of cutting curved tooth bevel gears is analyzed from the aspect of dimension position of workpiece and cutter, and the primary theory of machining simulation for cutting curved tooth bevel gears on CNC gear generator is educed. Taking AutoCAD as the operating platform, cutter and workpiece of solid database is bulit. Then the movement of CNC is transferred into relative movement between workpiece and cutter, and the cutting process is performed through subtraction boolean operation of workpiece and cutter. A sample of machining simulation result and a practical cutting result are given to verify the correction of simulation system. The simulation system is a visual aided tool in cutting complex curved tooth bevel gears.