铰刀的前端是切削部分,加工钢件用的铰刀切削锥角大多采用15°。我厂过去在万能磨床上磨削铰刀切削锥部时一直存在一个问题,即机床的工件头架无法带动工件转动。一般万能磨床(包括外圆磨床)工作台所能转动的角度均小于10°,当要磨削10°以上的锥度时只有转动机床的砂轮架,若将铰刀的切削锥部放朝尾架端, The front end of the reamer is the cutting part, most of the reamer cutting cone angle used for machining steel is 15 °. In the past, when grinding grinding reamers on a universal grinding machine, there was always a problem that the workpiece headstock of the machine tool could not drive the workpiece to rotate. General universal grinder (including cylindrical grinding machine) can rotate table angle less than 10 °, when grinding more than 10 ° taper only when turning the machine tool wheel frame, if the reamer cutting cone to the tail end ,