Press mounting device for mounting bushing to be in interference fit with workpiece

The utility model discloses a press mounting device for mounting a bushing to be in interference fit with a workpiece, and relates to the field of mechanical equipment. The press mounting device comprises a workbench; a first bracket and a second bracket below the first bracket are arranged on the workbench; a cylinder is arranged on the first bracket; a fixing plate is arranged at the upper end of the second bracket; a round hole is formed in the center of the fixing plate; a stepped pin facing upward vertically is arranged in the round hole; the diameter of the round hole is smaller than that of the bottom end of the stepped pin and larger than that of the upper end of the stepped pin; the stepped pin is movably connected with the fixing plate through the round hole; a press head is arranged at the bottom end of the cylinder; the centers of the press head, the round hole and the stepped pin are on the same straight line; a storage rack is arranged below the fixing plate; a spring is arranged between the ste