Method for scanning a tube intended to be worked on a laser cutting machine using a sensor for measuring the radiation reflected or emitted by the tube

摘要

The method comprises the steps of: a) emitting through the cutting head ( 50 ) of the laser cutting machine a focused laser beam such as not to be able to cut or etch the material of the tube (T); b) moving the cutting head ( 50 ) along a given scanning direction (x); and c) while the cutting head ( 50 ) is moving along the scanning direction (x), detecting through suitable sensors ( 56 ) the radiation reflected or emitted by the tube (T) and establishing point by point, on the base of the signal provided by these sensors ( 56 ), the presence or absence of the material of the tube (T).