Automatic flanging and forming equipment for cavity

The utility model relates to the field of cavity flanging, and discloses an automatic cavity flanging forming device which comprises a rack, a rotating assembly, an inner supporting assembly, a cavity, a material supporting assembly, a flanging assembly and a guide rail roller assembly, the rotating assembly is arranged on the rack, the inner supporting assembly is arranged on the rotating assembly and rotates along with the rotating assembly, the cavity is arranged on the inner supporting assembly in a sleeved mode, and the material supporting assembly is arranged on the flanging assembly. The flanging assembly is arranged on one side of the cavity, and the rotating assembly and the flanging assembly are connected through the guide rail roller assembly. The cavity is unfolded through the inner supporting assembly, the situation that follow-up folding work cannot be carried out due to the fact that the cavity cannot be completely opened is avoided, the inner supporting assembly is driven to rotate through the