Workpiece pressing device mounted on lathe tailstock

The utility model provides a workpiece pressing device mounted on a lathe tailstock. A rotator is arranged on a base, the tail of the rotator is arranged on the base, the rotator rotates around the axis of the rotator, a pressing bearing is arranged in the axis position of the head of the rotator, the axis of the pressing bearing is perpendicular to and intersected with the axis of the rotator, the end surface of the head of the rotator adopts a plane perpendicular to the axis of the rotator, the outer circle surface of the pressing bearing is higher than the end surface, and a circular ring is arranged on the end surface and is above the end surface and the outer circle surface of the pressing bearing. The workpiece pressing device is mainly mounted on the lathe tailstock and used for axially pressing a workpiece required to be processed, a center hole cannot occur to a processed workpiece product, particularly when a clamp on a main shaft clamps a processed product in a face positioning manner, the axial wo