一、前言 1980年,根据我厂生产的急需,自行设计、制造了一台用微机控制的HM-1型仿形、强力、缓进给专用磨床,以磨削代替铣削加工发动机叶片的榫齿。由于榫齿要求精度高(如圆弧要求R0.4~(-0.05),尺寸精度误差在0.01mm以内),光洁度高(▽_7以上),因此用磨削加工后不仅提高了产品的质量,生产率也提高了近10倍,而且亦提高了机床加工的自动化水平,只要 I. Preface In 1980, according to the urgent need of our factory, we designed and manufactured a HM-1 profiling, powerful and slow grinding machine specially designed for computer-controlled milling to grind instead of grinding the gear of the engine blade . Because of the high precision of gear teeth (R0.4 ~ (-0.05) for circular arc and less than 0.01mm of dimensional accuracy error) and high finish (▽ _7 or above), the grinding process not only improves the product quality, Productivity has also increased nearly 10 times, but also improve the automation of machine tool processing, as long as