Overturned workbench for welding robot

The invention relates to an overturned workbench for welding a robot, which is used for welding a welding part of the robot. The workbench mainly comprises a fixture base, a supporting seat, a bearing device II, the robot, welding fixtures II, a work platform II, a server II and a light screen plate, wherein the plurality of welding fixtures are installed on the multi-surface three-dimensional work platform connected with a connecting plate, the connecting plate is installed on the supporting seat through a bearing device I and a server I, and a welding control cabinet is respectively connected with the server and the robot. By overturning the multi-surface three-dimensional work platform, a server potential meter is controlled through a welding program of the welding control cabinet to change a work surface, the necessary using fixture is taken to rotate to an assigned workbench surface, and the robot is controlled by the welding control cabinet to realize automatic welding process. The whole production line has the advantages of compact plane arrangement, small occupation space and fixed program of the control cabinet without repeated adjustment, and can effectively reduce the time of repeatedly replacing and installing the welding fixtures, reliably ensure the stability of product welding and improve production efficiency and welding quality.