有时候要在车床上加工一个零件的锥面,其角度公差超过了刀架刻度盘所允许的范围,怎么办呢?如下方法(图1)将有助于你解决这个问题。它的精度可达到1分。当把刀架调整到名义角度值α_1以后(此例α_1<45°),装上百分表并把表的触头指向夹在车床夹盘内的工件圆柱表面(也可以是尾座主轴)。百分表还应水平放置,且触针中心线应与工件中心线垂直;至于它在高度方向的位置就勿需苛求了。此时,百分表的读数为0。当刀架精确 Sometimes you have to machine a cone on a lathe with tolerances that exceed the allowable range of the turret dial. The following (Figure 1) will help you solve this problem. Its accuracy can reach 1 point. When the tool holder is adjusted to the nominal angle α_1 (in this case, α_1 <45 °), mount the dial indicator and point the contacts of the watch at the cylindrical surface of the workpiece (which may also be the tailstock spindle) . Dial indicator should also be placed horizontally, and stylus centerline should be perpendicular to the centerline of the workpiece; As for its position in the height need not be demanding. At this point, the dial indicator reads 0. When the tool holder accurate