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1. 发明公开

US20240246173A1 DETERMINATION OF CONTOUR FIDELITY FOR A LASER CUTTING MACHINE 审中-公开
公开(公告)号：US20240246173A1
公开(公告)日：2024-07-25
申请号：US18558707
申请日：2022-08-18
申请人： BYSTRONIC LASER AG
发明人： Titus HAAS , Andreas LUEDI , Stefan WITTWER
IPC分类号： B23K26/08
CPC分类号： B23K26/0876
摘要： In one aspect, the present invention relates to a contour checking device for calculating path deviations from a target path of a cutting head of a laser machine tool. The contour checking device comprises a reference texture interface for reading a reference texture along the target path, which is defined in particular for cutting a contour, a controller, which is intended for controlling the laser machine tool in such a way that the cutting head traverses the target path; at least one camera, wherein the controller for controlling the at least one camera is intended for continuously capturing overlapping frames of the reference texture along the traversed path; a processor, which is intended for executing an image processing algorithm for reconstructing the trajectory traversed by the cutting head from the captured overlapping frames of the reference texture; and wherein the processor is intended for calculating deviations between the reconstruction of the path traversed by the cutting head and the target path. The contour checking device also comprises an output interface, which is intended for outputting the calculated deviations.

2. 发明公开

US20240335904A1 DETERMINATION OF TRANSITION PHASES FOR TRANSFORMING DIFFERENT DYNAMIC LASER BEAM SHAPES FOR A LASER CUTTING MACHINE 审中-公开
公开(公告)号：US20240335904A1
公开(公告)日：2024-10-10
申请号：US18701001
申请日：2022-10-24
申请人： BYSTRONIC LASER AG
发明人： Michael BERGER , Titus HAAS , Simon SCHEIDIGER
IPC分类号： B23K26/073 , B23K26/38
CPC分类号： B23K26/073 , B23K26/38
摘要： 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.

3. 发明公开

US20240326160A1 AUTOMATIC DETERMINATION OF A DYNAMIC LASER BEAM SHAPE FOR A LASER CUTTING MACHINE 审中-公开
公开(公告)号：US20240326160A1
公开(公告)日：2024-10-03
申请号：US18701048
申请日：2022-10-24
申请人： BYSTRONIC LASER AG
发明人： Michael BERGER , Titus HAAS , Simon SCHEIDIGER
IPC分类号： B23K26/06 , B23K26/38 , B23K31/00 , B23K31/10
CPC分类号： B23K26/0604 , B23K26/38 , B23K31/006 , B23K31/10
摘要： 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.

4. 发明申请

US20230044332A1 METHOD FOR LASER MACHINING A WORKPIECE AND APPARATUS FOR LASER MACHINING A WORKPIECE 有权
公开(公告)号：US20230044332A1
公开(公告)日：2023-02-09
申请号：US17759076
申请日：2021-01-22
申请人： BYSTRONIC LASER AG
发明人： Andreas LÜDI , Titus HAAS , Roland BADER
IPC分类号： B23K26/03 , B23K26/046 , B23K26/38 , B23K26/06 , B23K26/70
摘要： A method of laser machining a workpiece is provided, with a) generation of a machining laser beam and imaging of the machining laser beam on the workpiece with at least one optical element; b) machining of the workpiece with the imaged machining laser beam and generation of a cutting gap in the workpiece; c) monitoring of at least one geometric parameter of the cutting gap during step b); and d) regulating the monitored geometric parameter of the cutting gap during step c) for harmonisation with a target value of the geometric parameter of the cutting gap. Further provided is an apparatus for laser machining a workpiece.

5. 发明公开

US20240033858A1 DEVICE AND METHOD FOR LASER CUTTING A WORKPIECE AND PRODUCING WORKPIECE PARTS 审中-公开
公开(公告)号：US20240033858A1
公开(公告)日：2024-02-01
申请号：US18263785
申请日：2022-03-09
申请人： BYSTRONIC LASER AG
发明人： Titus HAAS , Simon SCHEIDIGER , Markus STEINLIN , Michael BERGER
IPC分类号： B23K26/38 , B23K26/06 , B23K26/08
CPC分类号： B23K26/38 , B23K26/0643 , B23K26/0648 , B23K26/0876 , B23K31/12
摘要： 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.

6. 发明公开

US20230286078A1 BEAM MACHINING HEAD AND METHOD FOR BEAM MACHINING 审中-公开
公开(公告)号：US20230286078A1
公开(公告)日：2023-09-14
申请号：US18249193
申请日：2021-10-15
申请人： BYSTRONIC LASER AG
发明人： Christoph FAHRNI , Stefan KALTENBACH , Titus HAAS , Andreas LUEDI
IPC分类号： B23K26/042 , B23K10/00
CPC分类号： B23K26/042 , B23K10/006
摘要： A beam machining head (10; 100; 200) for beam cutting of a workpiece is provided, having an interface (12) for an energy beam source (14; 14, 201) for generating a focused machining energy beam (15; 206) selected from a particle beam source, a fuel fluid beam source, a plasma beam source and/or a source for electromagnetic radiation; an exit opening (16) for the machining energy beam bounded by an opening edge (18); an optical detector unit (19) for recording at least one image of an electromagnetic radiation (17) emitted from the workpiece (11) through the exit opening into the beam machining head (10; 100; 200) and induced in the workpiece by the machining energy beam; and a monitoring unit (30) connected in a data-transmitting manner to the optical detector unit for monitoring a positional relationship between a centre of the emitted electromagnetic radiation and the exit opening, wherein the monitoring unit (30) has: a first determination module for determining at least one position (180; 182) of the exit opening in the at least one image; a second determination module for determining at least one position (170) of the centre of the emitted electromagnetic radiation in the at least one image; and a third determination module for determining the positional relationship between the at least one position (170) of the centre of the emitted electromagnetic radiation and the at least one position (180; 182) of the exit opening (16). A beam machining device and a method for beam cutting are further disclosed.

7. 发明公开

US20230271276A1 Method, Control Unit and Laser Cutting System for Combined Path and Laser Process Planning for Highly Dynamic Real-Time Systems 审中-公开
公开(公告)号：US20230271276A1
公开(公告)日：2023-08-31
申请号：US18248625
申请日：2021-10-15
申请人： BYSTRONIC LASER AG
发明人： Markus STEINLIN , Titus HAAS
IPC分类号： B23K26/38 , B23K26/03 , G05B19/18
CPC分类号： B23K26/38 , B23K26/03 , G05B19/182 , B23K2101/18
摘要： In one aspect, the present invention relates to a control unit (RE) for calculating a spatially and time-resolved, combined setpoint data set (SW-DS) for open- and/or closed-loop control of a laser cutting process during laser cutting with a laser cutting machine (L), wherein a processor (P) is intended to access a process model (PM) in a first memory (SI) via a process interface (P-SS) and a machine model (MM) in a second memory (S2) via a machine interface (M-SS) in order, on the basis of an estimated status data of the laser cutting process and the movement process, to calculate the spatially and time-resolved, combined setpoint data set (SW-DS) with coordinated setpoints for the laser cutting process and setpoints for the movement process, taking into account the read-in sensor data.

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