Automatic steel plate bevel cutting device

The utility model relates to an automatic steel plate bevel cutting device. The automatic steel plate bevel cutting device comprises a cutting frame and a cutting gun head. A motor and a transmission device are arranged at the end of the cutting frame, and the motor is connected with the transmission device. A traveling device and a cutting platform are further arranged on the cutting frame. The traveling device is fixed to the transmission device in a sleeved mode, and over the end of the cutting platform, the cutting gun head is installed on the traveling device. A fixed rail does not need to be adjusted or arranged, multiple steel plates can be simultaneously cut just by simply aligning the cutting gun head and the positions needing to be beveled, flat cutting faces are guaranteed, the steel plates to be beveled can freely rotate on the cutting platform, frequent carrying actions are saved, operating intensity is reduced, and time and labor are saved.