Jenoptik Automatisierungstechnik Gmbh

Jan Langebach

Werner Wollmann

Martin Griebel

Wilfried Kraemer

Andreas Zintl

Sven Fischbach

Wilfried KRÄMER

A device for simultaneously processing a circumference of a workpiece includes a plurality of laser-lens modules and a waveguide. The modules each include a diode laser and a lens system and is configured to emit a laser beam radially in a shared radiation plane. The waveguide includes a lower part and an upper part that together form a cavity enclosing the radiation plane. The laser-lens modules are configured so that the laser is reflected repeatedly between a bottom surface and a cover surface and propagates in an unaffected manner within the radiation plane so as to form a beam spot that strikes the workpiece with a homogeneous energy distribution. The beam spot has a height based on a distance between the surfaces and a width based on a divergence angle in the radiation plane and a distance of the module from the workpiece surface.

Device for simultaneously processing the circumference of a workpiece with laser beams

The present invention relates to a system for spot welding with a laser beam () in which the laser beam () passes through a tube () and impinges on the components () to be welded together. The cross section of the laser beam () is formed by reflections inside the tube, and the distribution of the radiation intensity is homogenized across the cross section of the beam. At the same time, the tube () exerts a contact force (F) on the components () that are to be welded together. Using a plurality of laser beams (), to each of which a tube () is dedicated downstream, it is possible to create a simple and robust, component-specific system by means of which several or all weld spots can be simultaneously produced so as to conjoin the two components ().

System for spot welding with a laser beam

Growing community of inventors

Gera, Germany

Jan Langebach