Two-stage air cylinder linkage device

The utility model relates to a two-stage air cylinder linkage device which comprises a first-stage driving unit and a second-stage driving unit, the first-stage driving unit and the second-stage driving unit are connected together in a transmission mode, the first-stage driving unit is used for forming a first-stage stroke, and the second-stage driving unit is used for forming a second-stage stroke on the basis of the first-stage stroke. The first-stage driving unit comprises an upper air cylinder lower cover plate, an upper air cylinder barrel, an upper air cylinder upper cover plate, an upper air cylinder partition plate and an upper air cylinder pipe. The secondary air cylinder linkage device has the advantages that the secondary air cylinder linkage device is designed and manufactured, the two air cylinders are combined together, the space of the two independent air cylinders is not occupied, and the functions of the two air cylinders can be fully achieved. The floating structure is used for forging produ