The machine is equipped with a double exchange table, which can load and unload plate workpieces during the cutting process. The worktable is equipped with a rotatable spherical support to facilitate the movement of the plate; Equipped with a positioning device, with clamps, can roughly position the plate, prevent the plate from moving, ensure the machining accuracy of the parts, and reduce waste. Automatic exchange platform, the equipment can load and unload materials during processing, and the loading time is only 10s, which greatly shortens the working time and improves the working efficiency.