Welding device suitable for aerospace discontinuous lattice core-added double-skin barrel shell structure

The invention discloses a welding device suitable for an aerospace discontinuous lattice core-added double-skin barrel shell structure. The welding device comprises a bed body, and a welding mechanism and a workpiece positioning mechanism which are arranged on the bed body. The welding mechanism comprises a Y-axis support, a Y-axis servo motor, a Y-axis slide rail base, a Y-axis lead screw and a welding gun support, wherein the Y-axis servo motor and the Y-axis slide rail base are located on the Y-axis support, the Y-axis slide rail base comprises a Y-axis slide rail bottom plate and a Y-axis slide rail located on the Y-axis slide rail bottom plate, and the welding gun support is arranged on the Y-axis slide rail base. The workpiece positioning mechanism comprises a cross-shaped slide table and an electromagnetic suction cup arranged on the cross-shaped slide table. The influences of artificial factors on the welding quality are reduced to the maximum extent; by controlling the whole welding process and the whole workpiece automatic positioning process through a control system, the welding device has the advantages of being easy to operate, safe, reliable, high in automation degree, high in precision and efficiency and the like.