Rear end cover, brush carrier plate and insulating sleeve assembling device

The utility model relates to the field of auxiliary equipment for motor assembly, in particular to an assembly device for a rear end cover, a brush carrier plate and an insulating sleeve. An assembling device for a rear end cover, a brush carrier plate and an insulating sleeve comprises a base and a pressing machine, the base is provided with at least two guide holes with upward openings, the number of the guide holes is smaller than or equal to that of rear end cover mounting holes, positioning columns and elastic pieces are arranged in the guide holes, and the pressing machine is arranged on the base. The positioning column has a trend force of moving upwards under the action of the elastic piece, so that the upper end of the positioning column extends out of the guide hole, the positioning column comprises a first matching section and a second matching section which are in sliding fit with the base, the first matching section is in clearance fit in the guide hole, and the width of the second matching secti