Turnover tool clamp suitable for narrow-gap laser wire filling double-face welding of titanium alloy thick plate

The utility model provides an overturn work fixture suitable for titanium alloy thick plate narrow gap laser wire filling double-sided welding, the work fixture comprises two lifting systems, two test plate overturn calipers, two test plate weights and two workbenches, test pieces to be welded are respectively placed on the two workbenches, the two test plate weights are respectively pressed on the two test pieces to be welded, and the two test plate overturn calipers are connected with the two workbenches. The end of each test piece to be welded is clamped by the test plate overturning calipers, the test plate overturning calipers drive the test pieces to be welded to ascend, descend and overturn, and the lifting system controls the test plate overturning calipers to ascend and descend. The technical problems that the welding production efficiency is greatly reduced and the production difficulty is increased due to the fact that a titanium alloy thick plate X-shaped groove welding joint is repeatedly turned