Scanning device for automatic welding of small assembly workpieces

The utility model provides a scanning device for automatic welding of small assembly workpieces, and belongs to the technical field of ship equipment manufacturing. According to the technical scheme, a welding portal frame (1) stretches across the two sides of a small assembly workpiece (3), and a welding mechanism (12) is arranged on the welding portal frame (1); the cross beam (4) is welded in front of the welding portal frame (1), the scanning mechanism (2) is arranged on the cross beam (4), and the scanning mechanism (2) comprises a two-dimensional line laser measuring instrument arranged on the transverse moving mechanism I; the number of the scanning mechanisms (2) is two or more, a first rail (11) is arranged on the cross beam (4), two or more first transverse moving mechanisms are arranged on the first rail (11) in a matched mode, and each first transverse moving mechanism is provided with a two-dimensional line laser measuring instrument. The utility model has the beneficial effects that more than tw