1、 The influence of the equal height of grinding head, headstock, and tailstock on the dimensional accuracy of workpieces
The height error of the grinding head, headstock, and tailstock will cause the line connecting the headstock and tailstock to deviate from the axis of the grinding wheel spindle in space, resulting in a hyperbolic surface on the surface of the workpiece being ground.
2、 The influence of parallelism error of the spindle axis of the grinding head in the horizontal plane on the dimensional accuracy of the workpiece caused by the connection between the headstock and tailstock
When this error occurs, the shape of the workpiece ground by the external cylindrical grinder will be a cone, that is, the grinding wheel will grind at an angle, and the surface will have spiral grinding patterns.
3、 The influence of perpendicularity error of grinding head movement relative to machine tool guide rail on machining accuracy
The result of this error is that the spindle axis is offset from the connection between the headstock and tailstock, which will cause a vertical deviation between the shoulder end face and the workpiece axis when grinding the shoulder end face. When grinding the outer circle, it will affect the surface roughness and produce spiral grinding patterns.