Rock wool cutting device and cutting method

According to the rock wool cutting device, a set of limiting sliding blocks and clamping sliding blocks are arranged at one end of a machine body machining part, a rotating rod is arranged at the other end of the machine body machining part, and an electromagnet and the rotating rod are matched to position and clamp the two ends of a rock wool board; then the clamping sliding blocks on one sides of the limiting sliding blocks are used for positioning and clamping the two sides of the rock wool board, the rock wool board needing to be cut and machined can be accurately positioned, the pressing frames are arranged on the two sides of the movable frame, the downward pressing sliding blocks and the rolling shafts are slidably installed at the bottoms of the pressing frames, and after the rock wool board is positioned, the pressing frames can be used for pressing the rock wool board. And then the hydraulic cylinder drives the moving frame to integrally descend, so that the rolling shaft is driven by the pressing f