Model-driven steel structure welding system and method

The invention discloses a model-driven steel structure welding system and method, and relates to the technical field of industrial processing and construction of building steel structures, the steel structure welding system generates a welding task data packet through a steel structure BIM model platform, and a steel structure welding control device analyzes the welding task data packet to obtain forward model data of a welded object, the forward model data comprises steel structure product information and welding process information of a zero component BIM model corresponding to the welding object, a welding object reverse model is constructed based on actual size information of the welding object in the actual welding process, the welding object reverse model represents the BIM model reflecting the actual state of the welding object, and the welding object reverse model represents a welding object reverse model reflecting the actual state of the welding object. The reverse model data and the forward model d