Method and device for laser-joining sheet metal parts

摘要

The invention relates to a device and to an associated method for joining sheet metal parts, each with a flange, by laser, wherein the flanges of the sheet metal parts (2) are joined into one connecting flange. The device has a clamping device (5) for clamping the sheet metal parts (2) to be joined in a main clamping direction running transversely to the connecting flange and a beam guidance system for a laser beam (1). Moreover, the device has a compensation shaft (9) which tracks the laser beam (1) according to a relative movement between the connecting flange and a guidance apparatus.

主权项

1. A device for joining sheet metal parts, each with a flange, by laser, wherein the flanges of the sheet metal parts are joined into one connecting flange, in which the flanges of the sheets to be joined abut flat against each other and thus form a joint with a flange plane
wherein the device has clamping device to clamp the sheet metal parts to be joined in a main clamping direction running transversely to the connecting flange and a beam guidance system for a laser beam which is designed to route a laser beam substantially parallel to the connecting flange and transverse to the clamping direction to a front side of at least one of the flanges of the sheet metal parts be joined, wherein the device further comprises a compensation shaft which, when the device is connected to a guidance apparatus, tracks the laser beam according to a relative motion between the connecting flange and the guidance apparatus characterized in that the beam guidance system has at least one optical element with which a beam angle at which the laser beam runs on a plane perpendicular to the main clamping direction is to be influenced in such a way that switching between different beam angles is possible in the area of a possible processing point such that in each instance a lateral angle is produced away from a sheet part projecting beyond the joint and that the device has an apparatus for monitoring the progression of the joint and the compensation mechanism has a compensation shaft that compensates positioning errors.