Tapping machine for aluminum alloy door and window machining

The utility model discloses a tapping machine for aluminum alloy door and window processing, which comprises a mounting plate, a rotating unit, a fixing unit, an adjusting unit and a processing unit,a connecting column is fixed on the upper end surface of the mounting plate, an electric brush slip ring is sleeved on the circumferential surface of the connecting column, and a mounting plate is fixed on the upper end surface of the connecting column. The rotating unit comprises a gear ring, a fixing base, a first motor and a gear, the gear ring is connected to the circumferential face of the brush sliding ring in a sleeving mode, the fixing base is fixed to the circumferential face of the mounting disc, the first motor is mounted on the lower side face of the fixing base, and an output shaft of the first motor is connected with the lower end face of the gear. The gear is meshed with the gear ring, the rotating unit is arranged to drive the machining unit to move, internal thread machining can be conducted on di