Automatic groove edge milling machine

The utility model belongs to the technical field of edge milling machines, and particularly relates to an automatic groove edge milling machine which comprises a frame, an adjusting mechanism is arranged on the frame, a supporting plate is arranged on the adjusting mechanism, a supporting frame is welded on the supporting plate, a screw rod is installed in the supporting frame through a bearing, a rotating disc is welded on the screw rod, and the rotating disc is provided with a groove. The rotating disc makes contact with the supporting frame, the outer side of the screw is connected with a screw cylinder through threads, a pressing plate is welded to the screw cylinder, and an edge milling machine is arranged on the frame. By arranging the supporting rod, the side plates, the air cylinder, the supporting block, the connecting rod and other structures, the air cylinder drives the supporting block to move, then the connecting rod deflects, the angle of the supporting plate is changed, the machining angle of a