Welding seam detection device for steel structure engineering

The utility model provides a welding seam detection device for steel structure engineering, which belongs to the technical field of welding seams of steel structures and comprises a working table, a long groove, an L-shaped sliding rod, a limiting sliding block and a welding seam detector, the long groove is arranged at the upper end of the working table, the L-shaped sliding rod is connected in the long groove in a sliding manner, and the limiting sliding block is connected in the L-shaped sliding rod in a sliding manner. The second long plate is arranged in the L-shaped sliding rod and fixedly connected to the upper end of the limiting sliding block, and the fixing rod is fixedly connected to the upper end of the second long plate, when the detection head body needs to be slightly adjusted, the motor drives the disc to rotate, the first long plate, the fixing rod and the second long plate are matched, and therefore the detection head body can be conveniently adjusted. The second long plate slides in the L-s