Die for pressing water box by using press machine

The utility model discloses a die for pressing a water box by a press machine, which comprises a body unit, a lower die, guide plates arranged on two sides of the lower die, a spring arranged at the top of the lower die, an elastic support plate arranged at the top of the spring, an air rod arranged in an inner cavity of the spring, and an upper unit, and the first table top is arranged at the top of the upper die. The device is simple in structure, convenient to install, easy to operate by workers, simple in operation and higher in production efficiency compared with other modes, meanwhile, the device has interchangeability, interchange and replacement of similar sizes and shapes can be achieved only by replacing part of parts, the manufacturing cost is reduced, the size of an internal cavity is controlled through a mold core of the mold, and the exterior of the water box naturally extends and deforms according to pressure; the defects of wrinkles, indentations and the like are not prone to occurring, the ap