Powered openable and closable rotary barrel holding device

The utility model discloses a powered openable rotary cylinder holding device which comprises a moving platform, an automatic hooping holding mechanism and a power rotating mechanism, and the automatic hooping holding mechanism comprises an upper die, a lower die, a plurality of rotary reducing mechanisms and a locking mechanism. The upper die and the lower die are both in a semi-arc shape, the rotary reducing mechanisms are distributed in the upper die and the lower die and used for supporting a barrel, the power rotating mechanism comprises a rotating base, a clamping mechanism and a rotating mechanism, and the clamping mechanism is arranged at the front end of the rotating mechanism and used for clamping the other end of the barrel; the rotating mechanism is installed on the rotating base and used for driving the clamping mechanism and the barrel to rotate so that follow-up machining of the barrel can be facilitated. According to the barrel holding device provided by the utility model, the automatic holdin