Automatic centering press mounting mechanism

The utility model relates to an automatic centering press mounting mechanism. The structure of the automatic centering press mounting mechanism is divided into an upper part, a middle part and a lower part, wherein the upper part comprises an upper pressure head, a ball screw, a screw bearing nut, a fixing plate, a pressing sleeve, an upper guide pillar, a locating plate and an upper linear bearing; the middle part comprises a lower guide pillar, a lower press plate, a lower pressure head, a lower linear bearing, a sensor, an upper press cake, a gland and a support plate; and the lower part comprises a base body, a support pillar, an adjusting wedge, a woodruff key, a hand wheel, a support seat and a steel ball. By adopting the automatic centering press mounting mechanism, the pressure heads and a press seat can be rapidly centered, and the coaxial positioning is accurate; moreover, the requirement on the processing precision is not high. The complete set of structure is capable of ensuring the precision and the consistency of the press mounting process. The utility model is the automatic press mounting mechanism with accurate and reliable positioning.