| 摘要 |
PURPOSE:To automatically perform multilayer sequence welding by using a small-sized portable robot by changing plural welding conditions into the data base and setting the positions of the starting end and finishing end of the linear welding section of a joint by teaching. CONSTITUTION:The welding conditions in accordance with the welding speed, a welding current, the weaving width, the wire feed speed and the number of layers for every kind of horizontal abutment, flat abutment, fillet, etc., and for every shape and angle of a groove are calculated by an experiment with a plate thickness value and a root gap value as parameters and these are changed into the data base. The positions of the starting and finishing ends of the linear welding section of the joint to be welded are set by teaching. The welding conditions corresponding to the joint are read out from the data base and welding is started from the starting end. Further, groove accuracy of the starting and finishing ends of the welding section is also inputted to a tapered root gap of the linear welding section to correspond to automatic welding. |
