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1. (WO2018202803) METHOD AND DISTANCE ADJUSTING DEVICE FOR ADJUSTING THE DISTANCE FROM A LASER MACHINING HEAD TO A WORKPIECE SURFACE, AND COMPUTER PROGRAM PRODUCT

Pub. No.:    WO/2018/202803    International Application No.:    PCT/EP2018/061400
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri May 04 01:59:59 CEST 2018
IPC: B23K 26/04
B23K 26/08
B23K 26/38
Applicants: TRUMPF WERKZEUGMASCHINEN GMBH + CO. KG
Inventors: STÜCKEL, Markus
DEMEL, Peter
LACHNER, Florian
MEINDL, Ulrich
OTT, Martin
KNORRECK, Daniel
Title: METHOD AND DISTANCE ADJUSTING DEVICE FOR ADJUSTING THE DISTANCE FROM A LASER MACHINING HEAD TO A WORKPIECE SURFACE, AND COMPUTER PROGRAM PRODUCT
Abstract:
The invention relates to a method for adjusting the distance from a laser machining head (1) to a workpiece surface (2) of a workpiece (3) to be machined, having the steps of: a. specifying a first target value (Zsoll) for the distance from the laser machining head (1) to the workpiece surface (2) in a direction perpendicular to the workpiece surface (2); b. specifying a second target value (dsoll) for the distance from the laser machining head (1) to the workpiece surface (2), wherein the second target value (dsoll) comprises at least one first component in the direction perpendicular to the workpiece surface (2); c. detecting a distance variable (dist) related to the distance (Zist) from the laser machining head (1) to the workpiece surface (2) in the direction perpendicular to the workpiece surface (2); and d. supplying the first and second target value (Zsoll, dsoll) and the detected distance variable (dist) or a variable related thereto to a distance adjusting device (10) in order to adjust the distance of the laser machining head (1) to the workpiece surface (2) perpendicularly to the workpiece surface while taking into consideration the first and the second target value (Zsoll, dsoll) and the distance variable (dist) or the variable related thereto.