Outer circle grinding bed

The invention provides an outer circle grinding bed, and belongs to the technical field of machinery. The outer circle grinding bed solves the problem of how to ensure the processing quality uniformity of workpieces in two stations on the premise of improving the processing efficiency of the grinding bed. A left jacking pin of a left installing and clamping seat and a right jacking pin of a rightinstalling and clamping seat of the grinding bed have the coincident axial lines; an integrated seat is arranged between the left installing and clamping seat and the right installing and clamping seat; an installing through hole is formed in the integrated seat; the center line of the installing through hole is coincident with the axial lines of the left jacking pin and the right jacking pin; oneend of the installing through hole is provided with a first integrated jacking pin which corresponds to the right jacking pin and has the axial line coincident with the center line of the installingthrough hole; the other end