Laserschneidmaschine mit Fokuslageneinstellung

摘要

The laser cutting machine comprises a laser generator, a cutting head, a numerically controlled drive for displacing the cutting head relative to the laser generator and/or parallel to a workpiece undergoing cutting, a focussing system (8) for the laser beam (1), and a system for adjusting the focal point position relative to the cutting head in the direction perpendicular to the workpiece. The machine is characterised by the fact that its numerical control - in order to maintain an unaltered position of the focal point of the laser beam relative to the workpiece surface - additionally adjusts the position of the focal point dependent on the position of the cutting head within its plane of motion parallel to the workpiece.