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简述直齿面齿轮数控刨削工艺的原理,推导直齿面齿轮的齿面方程和齿刀方程,建立多组刨削下齿刀转角与残留高度的数学关系,进而对数控刨削直齿面齿轮的加工轨迹进行优化。优化的刀具轨迹与未做优化的刀具轨迹对比数据表明,在相同条件下给出的刀具路径优化方法能缩短进给次数50%左右。最后利用Vericut仿真加工软件对路径优化进行了NC代码仿真,仿真显示提出的直齿面齿轮数控刨削工艺路径优化可行高效、精度符合要求。
The principle of the CNC planing process of the spur gear is briefly introduced. The tooth surface equation and the gear cutter equation of the spur gear are deduced. The mathematical relationship between the cutter angle and the residual height is established. Face gear processing trajectory optimization. The comparison between the optimized toolpath and the unoptimized toolpath shows that the tool path optimization given under the same conditions reduces the number of infeeds by about 50%. At last, the NC code simulation of the path optimization is carried out by using Vericut simulation software. The simulation shows that the proposed process of CNC gear sharpening is feasible and efficient, and the accuracy meets the requirements.