The press brake machine a machine capable of bending metal sheets, the structure of which mainly includes a bracket, a worktable and a clamping plate, the worktable is placed on the bracket, the worktable consists of a base and a platen, the base is connected to the clamping plate through a hinge, the base consists of a seat shell, a coil and a cover, the coil is placed in the depression of the seat shell, and the top of the depression is covered with a cover. The coil is energized by a wire when in use, and the energized wire generates a gravitational force on the platen, thereby realizing the clamping of a thin plate between the platen and the base. The electromagnetic clamping allows the platen to be used for a wide range of workpiece requirements, and allows workpieces with sidewalls to be machined and operated with ease.