Aiming at the problem of manual cutting of waste billets in the steelmaking process of steel mills,an arrayable flame cutting robot system for waste continuous casting billets was developed.The flame cutting robot mainly included a rectangular coordinate cutting robot,a flame cutting device,a continuous casting slab bracket and a PLC control system.The host computer could communicate with multiple PLC control systems to establish a flame cutting robot system that uses multiple flame cutting robots in an array.After measuring the size of the continuous casting billet to be cut with the laser distance sensor,the cutting path was automatically planned to complete the cutting.Using this flame cutting robot can replace labor and improve the quality and efficiency of waste blank cutting.