| 摘要 |
<p>A machine for relatively displacing in space a workpiece (2) and a laser head (6) having a nozzle (24) supplying a laser beam together with a stream of gas suitable for the operation being performed (cutting or welding); which machine provides for switching fully automatically, and without changing the laser head, from one type of operation to the other, by virtue of the nozzle presenting a removable portion (31) designed according to the type of operation being performed, and first releasable gripping means for gripping the removable portion (31); and by virtue of the machine comprising a nozzle refitting station (33) having second releasable gripping means for gripping the removable portion (31), and means for selectively connecting/disconnecting the first and second gripping means.</p> |
