| 摘要 |
The invention relates to a method for roller welding a fuel tank (4) consisting of two sheet metal parts (14, 15) comprising flanges in relief (16, 17). Said method comprises the following steps: (a) the sheet metal parts (14, 15) are placed against one another with their flanges in contact (16, 17) and are secured to each other at several points (23), (b) one (15) of the sheet metal parts (15, 16) is gripped by the arm (8, 9, 10) of a robot (6), which is equipped with a recess (11) that holds the surface of said part (15), (c) the robot (6) executes a three-dimensional movement with the object (4), in which the flanges in relief (16, 17) pass between the fixed-axis rollers (2, 3) of the roller welding machine at a constant speed. |
