| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a seam tracking welding apparatus which can accurately track a welding line by bringing a circular sensing roller into contact with a workpiece and by feeding-back the positional change of the roller to a laser beam machine in a real time. <P>SOLUTION: The seam tracking welding apparatus is integrated with a laser transmitter 1 by means of a mounting stay 13 and has the circular sensing roller 6 which is arranged at the tip end portion so as to turn with low friction by means of a rotary shaft A. The sensing roller 6 is always brought into contact with a welding workpiece W2 during measurement because of the elastic force of a spring 8 transmitted via a fulcrum 10. Further, a stopper 12 is provided such that the sensing roller 6 is not excessively tilted by the tension force of the spring 8 applied in such a non-contact state that the sensing roller 6 moves in the air. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
