Patents Assigned to SAUER GMBH LASERTEC
  • Patent number: 10525550
    Abstract: The invention relates to a machine tool (10) comprising a machine controller (19), a machine frame (11), a work table (13), a tool holder (14), preferably of a standardized design, multiple translational and/or rotational axes (12a, 12b) for adjusting the relative position of the work table (13) and the work holder (14), a tool magazine (16) for one or more material-removing, in particular machining tools (15), a tool-change mechanism for automatically transporting tools between the tool holder (14) and the tool magazine (16), a deposit-welding head (20) that can be inserted into the tool holder (14) and a storage device (25) for storing the deposit-welding head outside the tool holder (14).
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: January 7, 2020
    Assignee: SAUER GMBH LASERTEC
    Inventors: Peter Hildebrand, Martin Reisacher
  • Patent number: 10376992
    Abstract: In a method for machining a workpiece by a pulsed laser beam emanating from a tool head, the pulsed laser beam is guided across the workpiece surface in a constant relative position between workpiece and tool head, and the workpiece is machined consecutively in a first and another second relative position. The operating parameters in the second relative position are controlled such that one or more laser pulse hit locations generated in the second relative position have a defined position with reference to one or more laser pulse hit positions generated from the first relative position, particularly lie in a one- or two-dimensional grid defined by plural laser pulse hit positions on the workpiece surface made from the first relative position.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 13, 2019
    Assignee: SAUER GMBH LASERTEC
    Inventors: Peter Hildebrand, Gottfried Reinicke
  • Patent number: 10201928
    Abstract: A method for machining a workpiece by means of a laser beam, in which material of the workpiece is removed layer-by-layer according to predetermined definitions to produce a workpiece by traversing the exposed workpiece surface in lengths across the entire surface with a laser beam in order to vaporize and/or combust workpiece material. In a first material removal phase, the laser beam is guided relative to the workpiece over the workpiece surface by adjustable mirrors inside the laser tool, more particularly without mechanical control axes being moved to adjust the relative position between the laser tool and the workpiece. In a second material removal phase, the laser beam is guided relative to the workpiece over the workpiece surface by means of one or more control axes of the machine, the focal length being variably adjustable by means of a variable optical unit.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: February 12, 2019
    Assignee: SAUER GMBH LASERTEC
    Inventor: Peter Hildebrand
  • Publication number: 20170001258
    Abstract: The invention relates to a machine tool (10) comprising a machine controller (19), a machine frame (11), a work table (13), a tool holder (14), preferably of a standardized design, multiple translational and/or rotational axes (12a, 12b) for adjusting the relative position of the work table (13) and the work holder (14), a tool magazine (16) for one or more material-removing, in particular machining tools (15), a tool-change mechanism for automatically transporting tools between the tool holder (14) and the tool magazine (16), a deposit-welding head (20) that can be inserted into the tool holder (14) and a storage device (25) for storing the deposit-welding head outside the tool holder (14).
    Type: Application
    Filed: November 28, 2014
    Publication date: January 5, 2017
    Applicant: SAUER GMBH LASERTEC
    Inventors: Peter Hildebrand, Martin Reisacher
  • Publication number: 20160193698
    Abstract: In a method for machining a workpiece by a pulsed laser beam ema-nating from a tool head, the pulsed laser beam is guided across the workpiece surface in a constant relative position between workpiece and tool head, and the workpiece is machined consecutively in a first and another second relative position. The operating parameters in the second relative position are controlled such that one or more laser pulse hit locations generated in the second relative position have a defined position with reference to one or more laser pulse hit positions generated from the first relative position, particularly lie in a one- or two-dimensional grid defined by plural laser pulse hit positions on the workpiece surface made from the first relative position.
    Type: Application
    Filed: September 5, 2014
    Publication date: July 7, 2016
    Applicants: SAUER GMBH LASERTEC, SAUER GMBH LASERTEC
    Inventors: Peter Hildebrand, Gottfried Reinicke
  • Patent number: 9061372
    Abstract: A machining head of a laser machining tool includes a mechanical connector for connecting the machining head to a component of the laser machining tool, and a light path connector (15) and/or an electrical connector (16) and/or a fluid connector (17). The provided connectors are designed such that connections can be realized via one or more common relative movements between the machining head (10) and the component (5) of the laser machining tool, including a mechanically rigid connection to corresponding connectors on the component of the laser machining tool.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: June 23, 2015
    Assignee: SAUER GMBH LASERTEC
    Inventors: Christian Vogt, Waldemar Kargus
  • Patent number: 8847109
    Abstract: In a method for machining a workpiece, a laser beam (5) is guided across the workpiece surface by means of a beam guide (2, 51), wherein the laser beam guide comprises a first guide (2) effecting a laser beam guide at a first path speed. The laser beam guide comprises a second guide (51) simultaneously operating with the first guide, which effects a laser beam guide at a second path speed, which is higher than the first path speed.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: September 30, 2014
    Assignee: Sauer GmbH Lasertec
    Inventors: Michael Kuhl, Peter Hildebrand, Martin Reisacher
  • Publication number: 20140131922
    Abstract: A method for machining a workpiece by means of a laser beam, in which material of the workpiece is removed layer-by-layer according to predetermined definitions to produce a workpiece by traversing the exposed workpiece surface in lengths across the entire surface with a laser beam in order to vaporize and/or combust workpiece material. In a first material removal phase, the laser beam is guided relative to the workpiece over the workpiece surface by adjustable mirrors inside the laser tool, more particularly without mechanical control axes being moved to adjust the relative position between the laser tool and the workpiece. In a second material removal phase, the laser beam is guided relative to the workpiece over the workpiece surface by means of one or more control axes of the machine, the focal length being variably adjustable by means of a variable optical unit.
    Type: Application
    Filed: July 9, 2012
    Publication date: May 15, 2014
    Applicant: SAUER GMBH LASERTEC
    Inventor: Peter Hildebrand
  • Patent number: 8704122
    Abstract: A connecting piece for a tool of a multi-axis machining center has a support on the machining center side, a holder at the tool side and a pushing device which elastically pushes the holder into a defined position against the support. The pushing force of the pushing device can be varied during the operation of the machining center.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: April 22, 2014
    Assignee: Sauer GmbH LASERTEC
    Inventors: Christian Vogt, Waldemar Kargus, Martin Reisacher
  • Patent number: 8525076
    Abstract: The invention relates to a method for machining a workpiece by means of a laser beam, wherein a laser beam is guided by a beam guiding device over the surface of the workpiece within a working window. The beam guiding device and the workpiece are arranged in such a way that they are movable relative to one another in a direction of displacement along a displacement section and that they can occupy a first and a second relative working position to one another. According to the invention, a point on the workpiece can be machined from the second relative working position, said point being located behind the point which is machined from the first relative working position when viewed in the direction of displacement.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: September 3, 2013
    Assignee: Sauer GmbH Lasertec
    Inventors: Peter Hildebrand, Michael Kuhl
  • Patent number: 8397394
    Abstract: A method for workpiece levelling includes mounting the workpiece in a machine tool, measuring the position of the workpiece in the mounting and determining a translatory offset xv, yv, zv and a rotatory offset ?v, ?v, ?v of the factual workpiece mounting compared to the ideal mounting from the measurement results and from a workpiece data forming an initial data set related to the ideal mounting, wherein for obtaining another initial data set a plurality of surface points of the mounted workpiece are measured in their position xn, yn, zn in space, the data of one of the initial data sets are varied a plurality of times in accordance with plural translatory and rotatory displacements for obtaining a plurality of varied data sets, from the varied data sets and their base data set the one data set is determined that represents a surface with a lowest deviation measure compared to a surface represented by the other of the initial data sets, and the translatory offset xv, yv, zv and the rotatory offset ?v, ?v, ?v
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: March 19, 2013
    Assignee: Sauer GmbH Lasertec
    Inventors: Peter Hildebrand, Gottfried Reinicke
  • Publication number: 20110087362
    Abstract: A machining head of a laser machining tool includes a mechanical connector for connecting the machining head to a component of the laser machining tool, and a light path connector (15) and/or an electrical connector (16) and/or a fluid connector (17). The provided connectors are designed such that connections can be realized via one or more common relative movements between the machining head (10) and the component (5) of the laser machining tool, including a mechanically rigid connection to corresponding connectors on the component of the laser machining tool.
    Type: Application
    Filed: May 4, 2009
    Publication date: April 14, 2011
    Applicant: SAUER GMBH LASERTEC
    Inventors: Christian Vogt, Waldemar Kargus
  • Publication number: 20110000899
    Abstract: A connecting piece for a tool of a multi-axis machining center has a support on the machining center side, a holder at the tool side and a pushing device which elastically pushes the holder into a defined position against the support. The pushing force of the pushing device can be varied during the operation of the machining center.
    Type: Application
    Filed: November 10, 2008
    Publication date: January 6, 2011
    Applicant: SAUER GMBH LASERTEC
    Inventors: Christian Vogt, Waldemar Kargus, Martin Reisacher
  • Publication number: 20100176099
    Abstract: A method for workpiece levelling includes mounting the workpiece in a machine tool, measuring the position of the workpiece in the mounting and determining a translatory offset xv, yv, zv and a rotatory offset ?v, ?v, ?v of the factual workpiece mounting compared to the ideal mounting from the measurement results and from a workpiece data forming an initial data set related to the ideal mounting, wherein for obtaining another initial data set a plurality of surface points of the mounted workpiece are measured in their position xn, yn, zn in space, the data of one of the initial data sets are varied a plurality of times in accordance with plural translatory and rotatory displacements for obtaining a plurality of varied data sets, from the varied data sets and their base data set the one data set is determined that represents a surface with a lowest deviation measure compared to a surface represented by the other of the initial data sets, and the translatory offset xv, yv, zv and the rotatory offset ?v, ?v, ?v
    Type: Application
    Filed: April 1, 2008
    Publication date: July 15, 2010
    Applicant: SAUER GMBH LASERTEC
    Inventors: Peter Hilderbrand, Gottfried Reinicke
  • Publication number: 20100155381
    Abstract: In a method for machining a workpiece, a laser beam (5) is guided across the workpiece surface by means of a beam guide (2, 51), wherein the laser beam guide comprises a first guide (2) effecting a laser beam guide at a first path speed. The laser beam guide comprises a second guide (51) simultaneously operating with the first guide, which effects a laser beam guide at a second path speed, which is higher than the first path speed.
    Type: Application
    Filed: March 17, 2008
    Publication date: June 24, 2010
    Applicant: SAUER GMBH LASERTEC
    Inventors: Michael Kuhl, Peter Hildebrand, Martin Reisacher
  • Publication number: 20100147815
    Abstract: The invention relates to a method for machining a workpiece by means of a laser beam, wherein a laser beam is guided by a beam guiding device over the surface of the workpiece within a working window. The beam guiding device and the workpiece are arranged in such a way that they are movable relative to one another in a direction of displacement along a displacement section and that they can occupy a first and a second relative working position to one another. According to the invention, a point on the workpiece can be machined from the second relative working position, said point being located behind the point which is machined from the first relative working position when viewed in the direction of displacement.
    Type: Application
    Filed: March 17, 2008
    Publication date: June 17, 2010
    Applicant: SAUER GMBH LASERTEC
    Inventors: Peter Hildebrand, Michael Kuhl