Integral accurate bending forming system and method for large thin-wall storage tank cylinder section

The invention discloses an overall accurate bending forming system and method for a large thin-wall storage tank cylinder section, relates to the technical field of metal plastic forming, and solves the overall accurate bending forming problem of the large thin-wall storage tank cylinder section. The method specifically comprises the steps that firstly, a roll bending tool mainly composed of an electric feeding platform, axial limiting devices, a radial auxiliary support and the like is built, in the roll bending process of the super-long wall plate, guide rollers distributed on the axial limiting devices on the two sides clamp the two side faces of the super-long wall plate, the super-long wall plate is kept in the clamped state all the time in the roll bending process, and therefore the roll bending process of the super-long wall plate is completed; lateral slippage is prevented, and misalignment after closing is completely eradicated. Radial auxiliary supporting is utilized, self supporting roller frames a