Laser machining system and method for machining three-dimensional objects from a plurality of directions

摘要

Embodiments of the present disclosure are directed to systems (300), devices and methods for machining a work-piece from a plurality of directions using a single laser beam and galvanometer scan head (302). In some embodiments, such a system includes, for example, a scanning galvanometer head (“scan-head”) (302), having one or more mirrors (323) for directing a laser beam in at least one plane. Preferably, in some embodiments, the scan-head includes two mirrors for deflecting the laser beam in the at least one plane (e.g., an X-Y plane). A plurality of second mirrors (312A, 312B, 312C) is arranged after the scan-head (302) to direct the laser onto a predetermined portion of the exterior of the object to be machined. In some preferred embodiments, there are three such second mirrors (312A, 312B, 312C) each to direct the laser over a 120 degree area of the object. In some embodiments, a single, large-field focusing lens is also included to focus the laser output from the scan-head, while in other embodiments, each second mirror includes a corresponding focusing lens (316A, 316B, 316C). One or more of the beams effecting machining of the work-piece may be unfolded.

主权项

1. A laser machining system for machining a work-piece comprising:
a laser scanning head that receives a laser beam and redirects the laser beam within a first angular range; and two or more optical sub-systems positioned external to the laser scanning head and each receiving separately and at different times the laser beam from the laser scanning head over a second angular range within the first angular range, wherein each of the two or more optical sub-systems includes at least one focusing lens to focus the laser beam within a channel corresponding to a specific portion of the work-piece to be machined by the laser beam.