A cold-pressing device for cast aluminum rotor

Abstract

The utility model belongs to the technical field of motor production equipment relates to a cast aluminium rotor cold press device, include: cast aluminium rotor core, the central hole of assembly rotating shaft is provided in its center, the bar in cast aluminium rotor core extends downward and forms end ring and balance column, end ring divides its bottom end surface into inner ring area and outer ring area, cold press seat is provided with the central hole that passes through rotating shaft in cold press seat, the upper surface of cold press seat is provided with the support ring that extends upward, the support ring is located the just below of outer ring area, its inner peripheral wall and the outer peripheral wall of end ring contact fit to realize radial positioning, its upper end surface and outer ring area contact to form axial support, the support ring makes the lower formation of inner ring area form the overhanging area, provides the axial expansion space for the central hole in the process of pressing equipment. The cast aluminium rotor cold press device provided by the utility model can effectively reduce the pressing equipment resistance and prevent the rotating shaft from bending.

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