Pressure tank body assembling device

The utility model discloses a pressure tank body assembling device which comprises a bottom plate, a supporting plate, a sliding frame, a sliding rail groove, a supporting hydraulic rod, a rolling shaft and an assembling limiting device. A supporting plate is arranged on the bottom plate, a sliding rail groove is formed in the middle of the supporting plate, and sliding frames are arranged at the two ends in the sliding rail groove in a sliding mode respectively. And an assembly limiting device is hinged to the upper end of the sliding frame. Compared with the prior art, the device has the advantages that the head and the tail of a tank body can be clamped and fixed through the assembly limiting device, deviation can be prevented when the tank body is assembled, the assembly limiting device is hinged to the sliding frame, the assembly limiting device can be flatly placed when the head and the tail of the tank body are placed, and the assembly limiting device is convenient to use. The head and the tail of the