Even if we have advanced technology, there is no guarantee that we will be able to use the welding robot without any problems. The following editor will give you an analysis of the problems and solutions that will occur during the use of the welding robot.
Robotic welding adopts argon-rich mixed gas shielded welding. The welding defects that appear during the welding process generally include welding deviation, undercut, porosity, spatter, and arc crater. The specific analysis is as follows:
(1) The occurrence of welding deviation may be caused by incorrect welding position or problems when searching for the welding gun. At this time, it is necessary to consider whether the TCP (the position of the center point of the welding gun) is accurate, and adjust it. If this happens frequently, check the zero position of each axis of the robot, and re-calibrate to correct it.
(2) The occurrence of undercut may be due to improper selection of welding parameters, incorrect welding torch angle or welding torch position. You can adjust the power to change the welding parameters, adjust the torch posture and the relative position of the welding torch and the workpiece.
(3) The porosity may be due to poor gas protection, the primer of the workpiece is too thick, or the protective gas is not dry enough, and it can be dealt with by adjusting accordingly.
(4) Excessive spattering may be due to improper selection of welding parameters, gas composition reasons or too long outer elongation of the welding wire. You can adjust the power to change the welding parameters, adjust the gas proportioner to adjust the mixed gas ratio, and adjust the welding gun and The relative position of the workpiece.
(5) An arc crater is formed after cooling at the end of the weld. Add the submerged arc crater function in the work step during programming to fill it up.
During the welding process of a welding robot, defects such as offset, undercut, and porosity that are shown in the general welding process will also appear. Different appearances correspond to different reasons, so the solutions are also different. Among them, the welding deviation may be caused by the incorrect welding position or the welding torch searching. At this time, it is necessary to consider whether the center point of the welding torch is accurate and adjust it. If this problem occurs frequently, check the zero position of each axis of the robot, and re-calibrate to correct it.
