Ship hull framework jig

A ship hull framework jig is characterized in that a jig frame is formed by welding sectional materials with inverted L-shaped and left square bracket-shaped cross sections, a plurality of limiting blocks and clamps are arranged on the jig frame, and a cushion block is also arranged on the jig frame. The ship hull framework jig provided by the utility model adopts the scheme that the jig frame is formed by welding the sectional materials with the inverted L-shaped and left square bracket-shaped cross sections, a plane on the jig frame is plus or minus 1 mm, not only qualified planeness and supporting rigidity can be provided, but also the jig frame is convenient to clamp by the clamps. By adopting the jig frame provided by the utility model for welding ship hull frameworks, the high precision requirements of the ship hull frameworks during shipbuilding without allowance can be satisfied, the tolerance dimension can reach 0 to minus 2 mm, the production rate is four times as high as that of the original proces