Bystronic Laser Ag

Michael Berger

Simon Scheidiger

Titus Haas

Markus Steinlin

Andreas Luedi

Martin Mumenthaler

Andreas Lüdi

Alexandre Paradzinets

Wilfried Liegard

A control unit for providing control instructions for controlling a laser cutting machine by determining transition phases for transforming different dynamic laser beam shapes for the laser cutting machine, for dynamically varying the shape of the laser beam is disclosed. The control unit includes a cutting plan interface for receiving a cutting plan for cutting out parts of a workpiece that are each defined by a cutting segments ordered in a queue, an allocation tool configured to allocate a specific dynamic laser beam shape to each cutting segment, a transition tool for determining transition phases between each two consecutive specific dynamic laser beam shape, and a processor configured for determining a specific dynamic laser beam shape for each cutting segment and for determining all transition phases between each two consecutive specific dynamic laser beam shapes and for providing controlling the laser cutting machine for executing the received cutting plan.

Determination of transition phases for transforming different dynamic laser beam shapes for a laser cutting machine

A control unit for determining a dynamic laser beam shape for controlling a laser cutting machine, which is provided with a dynamic beam shaping module for varying the shape of the laser beam. The control unit includes a cutting plan interface, which is configured for receiving a cutting plan, an interface to a shape storage with a stored set of dynamic laser beam shapes, in particular more than two, and a processor which is configured for automatically calculating for each of the cutting segments an allocation to a dynamic laser beam shape of the set of dynamic laser beam shapes, wherein calculating the allocation is based on the property indicator of the workpiece and is specific for the respective cutting segment. The processor is further configured for providing control instructions for controlling the laser cutting machine by applying the determined dynamic laser beams shapes for each cutting segment specifically.

Automatic determination of a dynamic laser beam shape for a laser cutting machine

Cutting a workpiece and producing workpiece parts are disclosed. The device has a cutting head with laser beam optics with a dynamic laser beam movement unit. A cutting head movement unit moves the laser beam over the workpiece. A control unit has a determination module to determine a movement trajectory of the laser beam, a memory unit from which at least one predetermined parameter selected from a movement parameter of the cutting head movement unit, a movement parameter of the laser beam movement unit and a parameter of a deviation of a cut contour from a predetermined contour is retrievable, and an optimization module for adjusting the movement trajectory by overlaying the movement of the laser beam via the cutting head with a high frequency beam-shaping movement of the laser beam via the laser beam movement unit based on the at least one predetermined parameter.

Device and method for laser cutting a workpiece and producing workpiece parts

A machining apparatus for laser machining a workpiece in a machining zone is provided, having an interface for a machining laser source for generating a machining laser beam with a direction of propagation; an outlet opening for the machining laser beam; and an optical system between the interface and the outlet opening, wherein the optical system has: at least one optical unit that adjusts the focal length of the optical system, and at least one stationary laser beam guiding device with at least one movable surface, wherein the at least one movable surface can be adjusted such that it modifies the focal length of the optical system and/or the beam parameter product of the machining laser beam integrated over time in at least one operating mode. Further provided is a method for laser machining a workpiece.

Machining apparatus for laser machining a workpiece and method for laser machining a workpiece

The present disclosure relates to a fixing device arranged to be fastened to a machining head such as a drill head. A machine tool for machining workpieces such as metal sheets at a machining point is also disclosed. The workpieces may be machined from a machining side. A fastening device is included and adapted for fastening the fixing device to the machining head. A fixing head is included and adapted for releasably, locally fixing the workpiece on its machining side and adjacent to the machining point. A controller is included and configured to control the fixing and releasing of the fixing head on a workpiece.

Fixing device, machining head, machine tool and method for fixing a workpiece

In one aspect the invention relates to a sorting system (SortS) for sorting processed parts (P) from a workpiece (W), which has been processed by a laser processing machine (L), in particular a laser sheet processing machine, comprising:&#x2014;A working table (WT) for supporting the workpiece (W) with the processed parts (P), which have been processed by the processing machine (L),&#x2014;A fleet of interacting legged mobile robots (MR) for sorting the processed parts (P) in a collaborative manner to a target destination.

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Bern, Switzerland

Michael Berger