Device for laser machining, in particular laser welding of 3D workpieces, with a first optical element for dividing a laser beam and a second optical element for focusing the divided laser beams

摘要

The system has a roof mirror (17) for dividing a laser beam into two partial rays (19, 20), and a focusing mirror (8``) e.g. parabolic mirror, for focusing of the partial rays. The roof and the focusing mirrors are fixedly placed in a common housing (21), so that no relative movement exists between the mirrors. The housing is rotatably supported at a laser machining head, around a B-axis. The mirrors are independently removed and attached.