method for kantenfindung for werkstückkante were driving, gasausströmenden sweat and / or schneiddüse, brenner for the implementation of the procedure and the use of a gasstrahldüse in a lasereinrich

摘要

The invention relates to a method and a device for edge location for a gas-discharging welding and/or cutting nozzle (39) moving towards a workpiece edge (40). In order to simplify the locating of a workpiece edge (40) and to position the welding and/or cutting tool (12) quickly and with sufficient accuracy on the workpiece edge (40), a gas jet discharging from the nozzle (39) produces a pressure difference in a measuring space upon reaching the workpiece edge (40) and triggers a signal for controlling the welding or cutting operation. IMAGE