公开(公告)号：US20220072662A1

公开(公告)日：2022-03-10

申请号：US17527495

申请日：2021-11-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JINGBO WANG ,  MASATOSHI NISHIO ,  KENZO SHIBATA ,  MANABU NISHIHARA

IPC: B23K26/384 ,  B23K26/062 ,  B23K26/064 ,  B23K26/035

Abstract: A laser processing device includes a laser oscillator, optical fiber (90), beam control mechanism (20), and a laser light emitting head. The laser oscillator includes first and second laser oscillation units that generate first and second laser light rays (LB1) and (LB2), respectively. Beam control mechanism (20) includes optical path changing and holding mechanism (40) that is disposed between second condenser lens (32) that condenses second laser light (LB2) and dichroic mirror (33) that multiplexes first and second laser light rays (LB1) and (LB2) and causes the multiplexed light to be incident on optical fiber (90).
Beam control mechanism (20) changes an incident position of second laser light (LB2) on optical fiber (90).

公开(公告)号：US20220326478A1

公开(公告)日：2022-10-13

申请号：US17809023

申请日：2022-06-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASATOSHI NISHIO ,  MANABU NISHIHARA ,  YOSHINORI SASAKI

IPC: G02B7/182 ,  G02B26/08 ,  B23K26/04

Abstract: Laser apparatus (10) includes at least: a laser oscillator that emits laser light (LB); reflection mirrors (M1), (M2) that are disposed on an optical path of laser light (LB) and change the optical path; actuators (ACT1), (ACT2) that are respectively coupled to reflection mirrors (M1), (M2) and displace reflection mirrors (M1), (M2); optical axis deviation detector (16) that is disposed to surround the optical path of laser light (LB) and detects an optical axis deviation of laser light (LB); and a controller that drives actuators (ACT1), (ACT2) on the basis of a detection result of optical axis deviation detector (16) to displace reflection mirrors (M1), (M2) and correct the optical axis deviation of laser light (LB).

公开(公告)号：US20220118557A1

公开(公告)日：2022-04-21

申请号：US17531291

申请日：2021-11-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JINGBO WANG ,  MASATOSHI NISHIO ,  KENZO SHIBATA ,  MANABU NISHIHARA

IPC: B23K26/70

Abstract: Provided is a laser processing head including: shield holder (23) that has opening (23b) formed through shield holder (23) and optical sensor mounting hole (23c) formed in an inner peripheral surface of opening (23b); optical sensor (24) that has light receiving surface (24a) facing the inside of opening (23b) through optical sensor mounting hole (23c) and is attached to shield holder (23); and second protective glass (25) that has an outer peripheral surface facing light receiving surface (24a) of optical sensor (24) and is provided in opening (23b), second protective glass (25) transmitting a laser beam emitted by a laser oscillator to emit the laser beam toward a workpiece, and second protective glass (25) including reflective coating film (25a) formed in a region in the outer peripheral surface except an opposed region facing light receiving surface (24a) of optical sensor (24).

公开(公告)号：US20240261896A1

公开(公告)日：2024-08-08

申请号：US18641270

申请日：2024-04-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NAOHIRO MURAYAMA ,  MASATOSHI NISHIO ,  JINGBO WANG

IPC: B23K26/08 ,  B23K26/064

CPC classification number: B23K26/08 ,  B23K26/064

Abstract: Robot arm (11) is provided with support member (30). Support member (30) includes first support (31), second support (32), and rotator (36). First support (31) supports linear member (4). Second support (32) supports transmission fiber (3) at a position farther from robot arm (11) than first support (31). Rotator (36) rotatably supports second support (32) about rotation axis (37) extending along a radial direction of transmission fiber (3).

公开(公告)号：US20220072655A1

公开(公告)日：2022-03-10

申请号：US17529911

申请日：2021-11-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JINGBO WANG ,  MASATOSHI NISHIO ,  KENZO SHIBATA ,  MANABU NISHIHARA

IPC: B23K26/06 ,  B23K26/08 ,  B23K26/21

Abstract: A laser processing device includes a laser oscillator, first to third optical fibers, a beam control mechanism, and first to third laser light emitting heads attached to the first to third optical fibers, respectively. The beam control mechanism includes a condenser lens, first to third optical path changing mechanisms provided on an optical path of laser light LB after being transmitted through the condenser lens, and a controller that controls operations of the first to third optical path changing mechanisms. The beam control mechanism causes the laser light to be emitted from the first laser light emitting head via the selected first optical fiber.

公开(公告)号：US20190064451A1

公开(公告)日：2019-02-28

申请号：US16072489

申请日：2017-02-27

Applicant: Panasonic Intellectual Property Management Co. Ltd.

Inventor： YOSHIAKI TAKENAKA ,  HITOSHI NISHIMURA ,  MAKOTO RYUDO ,  JINGBO WANG ,  MASATOSHI NISHIO ,  KIYOTAKA EIZUMI ,  HIDEAKI YAMAGUCHI ,  RYO ISHIKAWA ,  DOUKEI NAGAYASU

IPC: G02B6/38 ,  G02B6/42 ,  B23K26/064

Abstract: A fiber spatial coupling device includes a detachable process fiber, an optical system, and a main body. The process fiber guides laser light. The optical system collects the laser light into the process fiber. The main body holds the optical system, and has a supply port for supplying gas to a space between the process fiber and the optical system.

公开(公告)号：US20230219166A1

公开(公告)日：2023-07-13

申请号：US18174604

申请日：2023-02-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOICHI FUKUMITSU ,  TAKAYASU OHARA ,  MASATOSHI NISHIO

IPC: B23K26/035 ,  B23K26/08

CPC classification number: B23K26/035 ,  B23K26/0884

Abstract: Laser processing device (100) includes a laser oscillator that generates laser beam (LB), laser head (60) that irradiates a workpiece with laser beam (LB), and manipulator (40) on which laser head (60) is mounted. Manipulator (40) includes robot arm (41), arm tip shaft (J6) provided at a tip of robot arm (41) in a manner rotatable about axis (RA), and connector component (50) that connects arm tip shaft (J6) and laser head (60). Connector component (50) is provided with gauge attachment portion (51a) to which gauge (80) is attached removably. Gauge (80) has a reference point corresponding to the focal position of laser beam (LB).

公开(公告)号：US20220088709A1

公开(公告)日：2022-03-24

申请号：US17541166

申请日：2021-12-02

Applicant: Panasonic Intellectual Property Management Co, Ltd.

Inventor： JINGBO WANG ,  MASATOSHI NISHIO ,  KENZO SHIBATA ,  MANABU NISHIHARA

IPC: B23K26/21

Abstract: Laser welding device (1000) includes: laser oscillator (100); optical fiber (300) that transmits a laser beam (LB) generated in laser oscillator (100); laser beam emitting head (400) that is attached to the emission end of optical fiber (300) and emits laser beam (LB) toward workpiece (600); manipulator (500) with laser beam emitting head (400) attached thereto; and controller (200) that controls laser beam emitting head (400) so as to cause laser beam (LB) to be scanned three-dimensionally on the surface of workpiece (600). Controller (200) controls laser beam emitting head (400) so as to change a focal position of laser beam (LB) in accordance with a shape of a welded portion in workpiece (600).

公开(公告)号：US20190271588A1

公开(公告)日：2019-09-05

申请号：US16417760

申请日：2019-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JINGBO WANG ,  DOUKEI NAGAYASU ,  YOSHIAKI TAKENAKA ,  HITOSHI NISHIMURA ,  MAKOTO RYUDO ,  KIYOTAKA EIZUMI ,  HIDEAKI YAMAGUCHI ,  RYO ISHIKAWA ,  MASATOSHI NISHIO ,  TAKASI KAKUTANI ,  YASUSHI MUKAI ,  MITSURU MUKAI ,  HIROYUKI HAYASHIKAWA

IPC: G01J1/42 ,  G01J1/04 ,  B23K26/00

Abstract: A laser device includes the following components: a laser resonator for emitting a laser beam; a condenser lens (21) for collecting the laser beam emitted from the laser resonator; an optical fiber (7) for transmitting the laser beam collected by the condenser lens (21); at least one light sensor (5) opposing a light receiving surface of the condenser lens (21) and outside the optical path of the laser beam, the at least one light sensor (5) detecting the amount of return light from the condenser lens (21); and a controller for determining the presence of an abnormality when the value of the amount detected by any of the at least one light sensor (5) is greater than the predetermined maximum threshold.

公开(公告)号：US20190030641A1

公开(公告)日：2019-01-31

申请号：US16072232

申请日：2017-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： DOUKEI NAGAYASU ,  HITOSHI NISHIMURA ,  MAKOTO RYUDO ,  JINGBO WANG ,  YOSHIAKI TAKENAKA ,  KIYOTAKA EIZUMI ,  HIDEAKI YAMAGUCHI ,  RYO ISHIKAWA ,  MASATOSHI NISHIO

IPC: B23K26/035 ,  G02B6/28 ,  B23K26/064 ,  H01S3/10 ,  G02B6/42

CPC classification number: B23K26/035 ,  B23K26/064 ,  G02B6/2848 ,  G02B6/4206 ,  G02B6/425 ,  H01S3/10

Abstract: A fiber coupling device includes a housing and a window provided in the housing. The fiber coupling device is configured to collectively guide plural laser beams to at least a first fiber, the plurality of laser beams each being emitted from a corresponding one of plural external laser light sources and entering through a laser beam inlet. The housing is configured such that the laser beams enter the housing from the laser beam inlet. The window is provided inside the housing and faces the laser beam inlet. The fiber coupling device is not required to detach when an optical axis is adjusted.