Electrically driven gearbox assembly having stepped hole positioning

Abstract

The utility model discloses a stepped hole positioning electric drive gearbox assembly. The stepped hole positioning electric drive gearbox assembly specifically comprises a first shell, a second shell and a positioning pin. A first positioning hole is formed in the connecting surface of the first shell, a second positioning hole corresponding to the first positioning hole is formed in the second shell, and the first shell and the second shell are in positioning connection through the first positioning hole, the second positioning hole and a positioning pin; the first positioning hole and/or the second positioning hole are/is stepped holes, each stepped hole comprises a guiding section close to the hole opening and a matching section away from the hole opening, the hole diameter of the guiding section is larger than that of the matching section, and the guiding section is used for guiding the positioning pin to enter the matching section. In the electric drive gearbox assembly, the first shell can be pre-positioned when being assembled with the second shell, and the first shell can be radially adjusted relative to the second shell during pre-positioning, so that the first shell and the second shell can be conveniently positioned and assembled, and the electric drive gearbox assembly can be automatically and massively assembled.