Abstract: An improved grinding machine includes a grinding wheel which is moved along a path extending at an acute angle to the axis of rotation of a workpiece. The workpiece is movable along its axis of rotation. During plunge grinding operations, the workpiece can be reciprocated along its axis of rotation. During traverse grinding operations, it is necessary to compensate for the acute angle of the path along which the grinding wheel is moved relative to the axis of rotation of the workpiece. This may be done between traverse grind strokes by initiating movement of the grinding wheel toward the workpiece from a position in which the edge surface of the grinding wheel is offset from the plane of a radially extending shoulder surface. Upon completion of a grinding operation, the wheel is retracted to a clear point. Different clear points are used so that the grinding wheel is retracted to only the extent necessary when finishing portions of a workpiece having different diameters.

Abstract: An improved grinding machine includes a grinding wheel which is moved along a path extending at an acute angle to the axis of rotation of a workpiece. The workpiece is movable along its axis of rotation. During plunge grinding operations, the workpiece can be reciprocated along its axis of rotation. During transverse grinding operations, it is necessary to compensate for the acute angle of the path along which the grinding wheel is moved relative to the axis of rotation of the workpiece. This may be done between traverse grind strokes by initiating movement of the grinding wheel toward the workpiece from a position in which the edge surface of the grinding wheel is offset from the plane of a radially extending shoulder surface. Upon completion of a grinding operation, the wheel is retracted to a clear point. Different clear points are used so that the grinding wheel is retracted to only the extent necessary when finishing portions of a workpiece having different diameters.