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公开(公告)号：US11958135B2
公开(公告)日：2024-04-16
申请号：US16541154
申请日：2019-08-15
Applicant: FANUC Corporation
Inventor： Takashi Izumi
CPC classification number: B23K26/705 , B23K26/14 , B23K26/1436 , B23K26/1462 , G06N3/08
Abstract: A machining condition adjustment device adjusts laser beam machining conditions for a laser beam machining device to carry out laser beam machining of a workpiece, produces each of state variables including machining condition data, workpiece data, and plasma generation amount data and determination data including plasma generation amount determination data, and learns adjustment action for the laser beam machining conditions with respect to an amount of plasma generated in the laser beam machining of the workpiece under prescribed laser beam machining conditions, with use of the produced state variables and the produced determination data.
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公开(公告)号：US11500360B2
公开(公告)日：2022-11-15
申请号：US16815432
申请日：2020-03-11
Applicant: Fanuc Corporation
Inventor： Takashi Izumi
Abstract: A machine learning apparatus able to obtaining an optimal shift amount of an assist gas. The machine learning apparatus comprises a state-observation section configured to observe machining condition data included in a machining program given to the laser machine, and measurement data of a dimension of dross generated at a cutting spot of the workpiece when the machining program is executed, as a state variable representing a current state of an environment in which the workpiece is cut; and a learning section configured to learn the shift amount in association with cutting quality of the workpiece, using the state variable.
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公开(公告)号：US20200298337A1
公开(公告)日：2020-09-24
申请号：US16820120
申请日：2020-03-16
Applicant: Fanuc Corporation
Inventor： Ryousuke Nakamura , Takashi Izumi
Abstract: A laser machine able to effectively satisfy cutting quality required on one side of a cutting spot of a workpiece. The laser machine comprising a machining head configured to emit a laser beam and an assist gas coaxially and non-coaxially; and a data table in which data of a machining condition for cutting a workpiece using the machining head, and a shift amount, by which a center axis of the assist gas is to be shifted from an optical axis of the laser beam in order to make cutting quality on both sides of a cutting line to be different during cutting the workpiece, are stored in associated with each other.
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4.发明申请公开(公告)号：US20200061743A1
公开(公告)日：2020-02-27
申请号：US16539352
申请日：2019-08-13
Applicant: Fanuc Corporation
Inventor： Takashi Izumi
IPC: B23K26/14 , B23K26/02 , B23K26/08 , B23K26/142 , B23K26/354 , B23K26/70
Abstract: A laser processing system that can effectively blow out a material of a workpiece melted by a laser beam by effectively utilizing an assist gas emitted from a nozzle. The laser processing system comprising a nozzle including an emission opening configured to emit a jet of an assist gas along an optical axis of a laser beam, the nozzle being configured to form a maximum point of velocity of the jet at a position away from the emission opening; a measuring instrument configured to measure a sound generated by the jet impinging on an object; and a position acquisition section configured to acquire information representing the position of the maximum point based on output data of the measuring instrument.
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公开(公告)号：US10543568B2
公开(公告)日：2020-01-28
申请号：US15353829
申请日：2016-11-17
Applicant: FANUC CORPORATION
Inventor： Takashi Izumi
Abstract: A laser processing head able to prevent leakage of a coolant out of a flow path or a coolant supply pipe. The laser processing head includes a closed-circulation path that circulates the coolant for removing the heat generated in the laser processing head due to a laser beam propagating in the laser processing head, and a coolant circulation device that allows the coolant to flow in the circulation path and circulates the coolant in the circulation path.
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Patent Agency Ranking
公开(公告)号：US10261274B2
公开(公告)日：2019-04-16
申请号：US15353849
申请日：2016-11-17
Applicant: FANUC CORPORATION
Inventor： Takashi Izumi
IPC: G02B6/42 , H01S5/022 , H01S3/00 , H01S5/024 , B23K26/70 , H01S5/02 , H01S5/40 , H01S5/04 , H01S3/23 , H01S3/04 , H01S3/16
Abstract: An optical fiber connection unit able to efficiently remove heat generated in the optical fiber connection unit. The optical fiber connection unit includes a closed circulation path, through which coolant for eliminating heat generated in the optical fiber connection unit by a laser beam propagating through the optical fiber connection unit circulates, and a coolant circulation device for causing the coolant to flow and circulate in the circulation path.
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公开(公告)号：US11602803B2
公开(公告)日：2023-03-14
申请号：US16541669
申请日：2019-08-15
Applicant: Fanuc Corporation
Inventor： Takashi Izumi
IPC: B23K26/14 , B23K26/12 , B23K26/046 , B23K26/382 , B23K26/142
Abstract: A laser processing system capable of reliably determining an abnormality in a jet during laser process. The laser processing system comprises a nozzle including an emission opening configured to emit a jet of an assist gas along an optical axis of a laser beam, the nozzle being configured to form a maximum point of velocity of the jet at a position away from the emission opening; a measuring instrument configured to measure any of the velocity of the jet and a sound generated by the jet impinging on a workpiece; and an abnormality determination section configured to determine whether or not output data of the measuring instrument is different from reference data.
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公开(公告)号：US11577340B2
公开(公告)日：2023-02-14
申请号：US16540525
申请日：2019-08-14
Applicant: Fanuc Corporation
Inventor： Takashi Izumi
Abstract: A laser processing system that can effectively blow out a material of a workpiece melted by a laser beam by effectively utilizing an assist gas emitted from a nozzle. The laser processing system comprises a nozzle including an emission opening configured to emit a jet of an assist gas along an optical axis of a laser beam, the nozzle being configured to forming a maximum point of velocity of the jet at a position away from the emission opening; a measuring instrument configured to measure the velocity of the jet; and a position acquisition section configured to acquire information representing a position of the maximum point based on output data of the measuring instrument.
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公开(公告)号：US11318565B2
公开(公告)日：2022-05-03
申请号：US16541157
申请日：2019-08-15
Applicant: FANUC Corporation
Inventor： Takashi Izumi
Abstract: A machining condition adjustment device adjusts settings of an ionizer so as to neutralize a charge carried by plasma generated during laser beam machining of a workpiece by a laser beam machining device, calculates an amount of charge per unit time that is to be radiated from the ionizer, based on the amount of charge carried by the plasma generated during the laser beam machining, and sets the ionizer to radiate the calculated amount of charge per unit time.
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公开(公告)号：US10814424B2
公开(公告)日：2020-10-27
申请号：US16263566
申请日：2019-01-31
Applicant: Fanuc Corporation
Inventor： Takashi Izumi
Abstract: A laser machining head has a function of rectifying an assist gas and includes a protection window, a nozzle configured to blow the assist gas over a workpiece, a chamber defining a space between the protection window and the nozzle, an inflow port disposed in a chamber and configured to allow the assist gas to flow in, and a flow dividing projection disposed at a position opposing to the inflow port and configured to divide the assist gas from the inflow port into a first flow and a second flow flowing along a circumferential direction around an optical axis of a laser beam.
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