Automatic cutting system for old wagon body plate of railway wagon

The utility model discloses an automatic cutting system for an old wagon body plate of a railway wagon, and belongs to the technical field of welding automation. In order to solve the problems of low cutting efficiency, high labor intensity or low cutting quality caused by manual technical difference and the like in cutting operation without a reliable positioning reference outside and non-uniform plate thickness. The device comprises a six-axis industrial robot, a cutting torch mounting rack, a cutting torch, a laser distance measuring sensor, a camera mounting bracket, a photographing recognition camera, a camera mounting bracket, a pen container camera and an optical axis, the cutting torch is arranged at the end of a mechanical arm of the six-axis industrial robot through the cutting torch installation frame, the laser distance measuring sensor is installed on one side of the cutting torch, the optical axis is arranged on the other side of the cutting torch, the photographing recognition camera is install