为了满足航空和航天技术所需的超高精度齿轮的加工,一种CNO成形磨齿机已经在美国问世。这种成形磨管机既可用来加工直齿轮,又可用来加工斜齿轮。这种磨齿机采用卧式布局主要结构特点是:1)采用花岗石S-100制成的立柱和床身。这种材料,具有减振性高,刚性强和良好的精度保持性等特点。因此,一些超精密磨床往往采用这种材料作为床身等零件;2)由电子齿轮箱进行分度,分度精度可达0.l〃。电子齿轮箱也用来控制螺旋导程,这种电子齿轮箱(EGB)是以16位微处理机为基础的 In order to meet the aerospace and aerospace technology required ultra-high precision gear machining, a CNO forming grinding machine has been in the United States. This profiled pipe mill can be used both for machining spur gears and for helical gears. This type of grinding machine with horizontal layout of the main structural features are: 1) made of granite S-100 columns and bed. This material has the characteristics of high damping, strong rigidity and good precision retention. Therefore, some ultra-precision grinding machines often use this material as a bed and other parts; 2) by the electronic gear box indexing, indexing accuracy of up to 0. 1 ". Electronic gearboxes are also used to control the screw lead. The electronic gearbox (EGB) is based on a 16-bit microprocessor