Automatic device for sleeving aluminium bar into copper tube

The invention relates to an automatic device for sleeving an aluminium bar into a copper tube, which is used for pushing the aluminium bar into the copper tube which is in butt joint with the aluminium bar. The device comprises a frame body, a plurality of rows of centering wheels, a plurality of rows of centering plates, a baffle and a push plate, wherein the plurality of rows of centering wheels and the plurality of rows of centering plates are arranged on the frame body and extend along the lengthwise direction of the frame body, and the baffle and the push plate are oppositely arranged on the frame body; the frame body comprises a guide rail which extends along the lengthwise direction of the frame body; the push plate is arranged on the guide rail and moves along the extending direction of the guide rail; adjacent two rows of centering wheels form an aluminium bar clamping part for clamping the aluminium bar; adjacent two rows of centering plates form a copper tube clamping part for clamping the copper t