Patent ID: 6288359
Filing Date: 2001-09-11
Classification: B23K

Abstract:
A welding device for two workpieces (1, 2) to be connected to one another via a self-contained, continuously extending weld seam (N), having: a workpiece receptacle (4); a laser beam source connected to a focusing optical system (7); and a pivoting arm (11) which is disposed above the workpieces (1, 2) and bears the focusing, optical system (7) and which rotates around its pivoting axis (S) lying perpendicular to the welding plane and inside the self-contained weld seam (N), the position of the focusing optical system (7) on the pivoting arm (11) acting as a guide being changeable by means of a drive (13), characterized in that the positioning of the focusing optical system (7) on the pivoting arm (11), retained after the fashion of a spoke in a rotatably mounted ring (12), is corrected in dependence on the measuring result of a seam follow-up sensor (10) disposed in a fixed geometrical relation to the focusing optical system (7).