Bender is a thin plate bending machine, whose structure includes brackets, work table and clamp plate, on a bench in a cradle, bench constituted by the base and plate, base are connected by a hinge and clamp plate, base from the seat shell, coils and cover plate, coil placed on the seat shell, in the depression, depression covered with cover plate on the top. When used by a wire to the coil is energized, energized to have gravity on the plate, thus clamping to achieve between the pressure plate and the base plate.