Middle vertical frame turning edge pressurizing die of window frame

The invention discloses a middle vertical frame turning edge pressurizing die of a window frame. The pressurizing die comprises a die body, the die body is provided with an inner cavity used for containing a middle vertical frame, a T-shaped groove is formed in the inner cavity, a pressing head is arranged above the output side of the T-shaped groove, and the pressing head is controlled by an executing mechanism to move up and down. The die body is simple in structure, only one T-shaped groove needs to be formed, and the pressing head is controlled to move to pressurize a turning edge, so thatthe turning edge is flush with a hollow rectangular frame and is tightly attached to the bottom surface of the hollow rectangular frame, and no gap or tilting is generated; and a welding mechanism isarranged at the rear portion, the pressurized turning edge can be quickly welded, the turning edge cannot tilt immediately under the limitation of the T-shaped groove, and therefore the flatness of the turning edge is guarant