Pipe-tower type wind power generation tower doorframe cold bending molding device

The utility model belongs to the wind power generating equipment manufacturing process equipment, in particular relates to a pipe-tower type wind power generation tower doorframe cold bending molding device, the device comprises a chassis (1), a master cylinder connecting bolt (4), a guide block fixing bolt (13), a concave mould fixing bolt (18) and a mould backing plate (11); a master cylinder fixing plate (3) is welded at the left end on the chassis (1), a master cylinder (5) is fixed on the master cylinder fixing plate (3) by the master cylinder connecting bolt (4), the left end of a square force-transmitting frame connecting bolt (6) is connected with the piston rod of the master cylinder (5) by threads, the right end thereof is connected with a square force-transmitting frame (7) by threads, the guide block fixing bolt (13) for a guide block (14) is fixed on the chassis (1), an assisting foot plate (12) is welded on the right end of the chassis (1), the problem of insufficient closing capacity of common pressure machine is solved, the structure is simple, the operation is convenient and the production efficiency is greatly improved.