Hot pressing device

The utility model provides a hot-pressing device, which belongs to the technical field of hot riveting and comprises a base, a sliding rail is arranged on the base, an electric cylinder is arranged on the sliding rail, a hot-pressing tool component is mounted on the electric cylinder, at least one supporting device is further arranged on the base, at least one air cylinder is further arranged on the base, and the air cylinder is arranged on the supporting device. The air cylinder is located on the side, away from the hot-pressing tool component, of the supporting device, and a pressing block is arranged on the air cylinder. Due to the arrangement of the supporting device, the electric cylinder only bears the compression pressure of the supporting spring, the compression pressure is far smaller than the limit load value, the situation that the electric cylinder directly bears the pressure of the air cylinder during hot riveting is avoided, the load of the electric cylinder is reduced, and stable and lasting op