在通常情况下,普通外圆磨床既可以磨削工件的外圆,也可以磨削工件的锥体、凹槽、端面等。但由于外圆磨床的工作台一般都比较狭长,因此,能回转的角度也受到限制,也就无法直接在它上面磨削小型工件的各种锥体。柴油机上的精密部件——喷油器总成上的针阀,它的各级锥体和外圆的几何精度、粗糙度等技术要求 Under normal circumstances, the common cylindrical grinder can not only grind the workpiece of the outer circle, you can also grinding the workpiece cone, groove, face and so on. However, cylindrical grinding machine table is generally more narrow, so the rotation angle is also limited, it can not be directly on the grinding of small pieces of various cones. Precise components on diesel engine - Needle valve on injector assembly, geometric accuracy, roughness of cone and outer circle at all levels, etc.