Manufacturing method for steel net shell purline connecting node plates and mold

The invention relates to a production method for steel frame net shell structures, in particular to a manufacturing method for steel net shell purline connecting node plates and a mold, and solves theproblem of position angle deviation of purlines in the mounting process due to nonstandard angles of node plates. The mold structure comprises a bottom support frame, a platform plate, a main purlinesupport plate, a main purline support rib plate movable backup plate, a secondary purline support platform plate and a secondary purline support backup plate. The mold fully combines the structure characteristics of the node plates; through horizontal and vertical relations in the mold, each structure of the node plates cannot be shifted and deviated in the connecting and assembling process; through assembly of the purline node plates on the specific mold, the mounting horizontal position and verticality of connecting plates are precise; the backup plates are fixed by limiting plates for spotwelding to achieve high sa