Mechanical device for preventing welding deformation of steel plate wall

The utility model discloses a mechanical device for preventing welding deformation of a steel plate wall, which comprises a working platform and a steel plate restraint device, the working platform is used for placing a steel plate, and the steel plate restraint device compresses the steel plate so that the steel plate is fixed on the working platform. The device further comprises a lifting platform, a profile steel fixing device and an anti-deformation telescopic rod, the lifting platform is used for placing the H-shaped steel, and the set height of the H-shaped steel is adjusted through vertical lifting of the lifting platform, so that the H-shaped steel is adjusted to the corresponding installation position of the steel plate. And the profile steel fixing device limits and fixes the flange plate of the H-shaped steel in the horizontal direction, so that the steel plate and the flange plate of the H-shaped steel are in contact welding. And the two flange plates of the H-shaped steel are buckled by the anti-