Aluminum door and window corner combining machine

The utility model provides an aluminum door and window corner combining machine which comprises a machine body and a platform horizontally arranged at the top of the machine body, the top face of the platform is fixedly connected with two vertical positioning baffles, the two positioning baffles are perpendicular to each other, and two corner knife assemblies are arranged at the ends, close to each other, of the two positioning baffles. A welding corner assembling device is arranged between the two corner cutter assemblies, two sets of auxiliary positioning mechanisms located at the ends away from the welding corner assembling device are arranged between the two positioning baffles, and the two sets of auxiliary positioning mechanisms are arranged close to the two positioning baffles correspondingly and used for positioning the two side edges of the aluminum door and window. The stability of the aluminum door and window in the corner combining process can be improved, and the quality of aluminum door and wind