Workpiece butt joint structure and high-precision robot rivet welding device

The utility model relates to the technical field of welding assistance, in particular to a workpiece butt joint structure and a high-precision robot rivet welding device.The workpiece butt joint structure comprises a workpiece rivet welding workbench, two swing bases, an adjusting assembly and a fixing assembly, two lifting grooves are symmetrically formed in the upper end of the workpiece rivet welding workbench, and lifting bases are horizontally arranged in the two lifting grooves; the swing bases are arranged at the upper ends of the two lifting bases through the swing assemblies respectively, each swing assembly comprises a supporting seat, the adjusting assemblies are arranged on the two sides of the upper ends of the lifting bases, each adjusting assembly comprises two adjusting seats, and a conventional placing and fixing structure of a workpiece is arranged into the two swing bases capable of moving left and right and adjusting the height up and down. When workpiece butt joint needs to be carried out