公开(公告)号：US20230191538A1

公开(公告)日：2023-06-22

申请号：US17928675

申请日：2021-05-21

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Shigeru NOZAKI ,  Kyohei OKAMOTO ,  Nobuhiro TAKATA ,  Keita KONDOU

IPC: B23K26/70 ,  B23K26/10

CPC classification number: B23K26/706 ,  B23K26/10

Abstract: A laser processing device is a device that processes a workpiece using a laser beam, and includes a cutting pallet and a container. The cutting pallet includes a placement unit that supports a lower surface of the workpiece. The container supports the cutting pallet and is capable of storing a transmission inhibition liquid inhibiting transmission of light having a wavelength greater than or equal to 0.7 µm and less than or equal to 10 µm up to a height position of the placement unit.

公开(公告)号：US20170188445A1

公开(公告)日：2017-06-29

申请号：US15325223

申请日：2015-12-04

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Keita KONDO ,  Shigeo MORIMOTO ,  Katsuo SAIO

IPC: H05H1/34 ,  B23K10/00 ,  H05H1/28

Abstract: A replacement part unit for a plasma torch includes an electrode, an insulation guide, and a nozzle. The insulation guide includes a hole into which the electrode is inserted. The insulation guide is coupled to the electrode by press-fitting or adhesion. The nozzle includes a hole into which the insulation guide is inserted. The nozzle is coupled to the insulation guide by press-fitting or adhesion.

公开(公告)号：US20240269779A1

公开(公告)日：2024-08-15

申请号：US18564744

申请日：2022-04-28

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Nobuhiro TAKATA ,  Shigeru NOZAKI ,  Keita KONDOU

IPC: B23K26/70 ,  B23K26/08 ,  B23K26/38

CPC classification number: B23K26/706 ,  B23K26/38 ,  B23K26/0876

Abstract: A container can store a transmission inhibition liquid that inhibits transmission of a laser beam. A laser head emits a laser beam. A transmittance detection sensor detects transmittance of a transmission inhibition liquid stored in a container. A liquid level sensor is fixed to the laser head, and detects a relative distance between the liquid level sensor and a liquid level of the transmission inhibition liquid. A controller controls emission of the laser beam to a workpiece by the laser head based on detection results of the transmittance detection sensor and the liquid level sensor.

公开(公告)号：US20240391023A1

公开(公告)日：2024-11-28

申请号：US18685364

申请日：2022-08-03

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Shigeru NOZAKI ,  Nobuhiro TAKATA

IPC: B23K26/142 ,  B23K26/38

Abstract: A container supports a workpiece and is capable of storing a transmission inhibition liquid. An air blow nozzle blows gas to the workpiece supported by the container. A drive mechanism moves the air blow nozzle. A controller controls the drive mechanism so as to limit a movement trajectory of the air blow nozzle during the gas blowing to the workpiece by the air blow nozzle within a planar shape of the workpiece.

公开(公告)号：US20240131621A1

公开(公告)日：2024-04-25

申请号：US18548392

申请日：2022-04-24

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Nobuhiro TAKATA ,  Keita KONDOU

IPC: B23K26/04 ,  B23K26/08 ,  B23K26/14 ,  B23K26/18

CPC classification number: B23K26/048 ,  B23K26/0869 ,  B23K26/1476 ,  B23K26/18

Abstract: A laser machining device uses laser light to machine a workpiece disposed in a light-blocking liquid having light-blocking properties. A nozzle unit for the laser machining device includes an inner nozzle through which the laser light passes, a gas outlet port that blows a gas toward the workpiece in order to remove the light-blocking liquid from between the inner nozzle and the workpiece, and a swirler that causes the gas to swirl.

公开(公告)号：US20210283710A1

公开(公告)日：2021-09-16

申请号：US17102798

申请日：2020-11-24

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Nobuhiro TAKATA ,  Yoshihiro YAMAGUCHI

IPC: B23K10/00

Abstract: A plasma cutting machine cuts a work piece with a plasma arc. The plasma cutting machine includes a plasma torch, a drive device, and a controller. The plasma torch includes an electrode and a nozzle and generates the plasma arc. The drive device moves the plasma torch. The controller includes a storage device and controls the drive device. The storage device records information pertaining to the plasma cutting machine. The controller acquires a weight of a work piece. The controller acquires a consumption amount of at least one of the electrode and the nozzle. The controller records, in the storage device, processing performance data including the weight of the work piece and the consumption amount correlated with each other.

公开(公告)号：US20190270162A1

公开(公告)日：2019-09-05

申请号：US16320275

申请日：2017-11-01

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Kazuyuki KITAMURA ,  Youichirou SHIMIZU

IPC: B23K26/12 ,  B23K26/16 ,  B23K26/38 ,  F24F7/10 ,  B23K26/142

Abstract: A three-dimensional laser cutter can be disposed in a machining room. The machining room includes a ceiling and a plate member. The ceiling is provided with a suction port connected to a suction device. The plate member is disposed below the ceiling with a gap therebetween. The plate member forms a space with the ceiling.

公开(公告)号：US20190160584A1

公开(公告)日：2019-05-30

申请号：US16264838

申请日：2019-02-01

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Keita KONDO ,  Shigeo MORIMOTO ,  Katsuo SAIO

IPC: B23K10/00 ,  H05H1/34 ,  H05H1/28

Abstract: A center pipe is used in a plasma torch including a base portion and an electrode to supply cooling water into the electrode. The center pipe includes a pipe body and a contact piece. The pipe body has a tube-like shape with a cooling water channel therein. The pipe body is electrically conductive and configured to be electrically connected to an external power source via the base portion. The contact piece is arranged radially outside the pipe body at an intermediate position between a base end surface and a tip end surface of the pipe body. The contact piece is electrically conductive and energizes the electrode through contact with an internal circumferential surface of the electrode. The base end surface is disposed outside the electrode when the center pipe is inserted into the electrode. The pipe body is configured to be electrically connected to the electrode via the contact piece.

公开(公告)号：US20240261898A1

公开(公告)日：2024-08-08

申请号：US18564708

申请日：2022-04-28

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Nobuhiro TAKATA ,  Shigeru NOZAKI

IPC: B23K26/14

CPC classification number: B23K26/1435

Abstract: A container can store a transmission inhibition liquid that inhibits transmission of a laser beam. A liquid storage unit has an internal space, and is connected to the container such that the transmission inhibition liquid stored in the container enters the internal space. A transmittance detection sensor detects transmittance of the internal space in the liquid storage unit.

公开(公告)号：US20240227070A9

公开(公告)日：2024-07-11

申请号：US18548392

申请日：2022-04-25

Applicant: KOMATSU INDUSTRIES CORPORATION

Inventor： Yoshihiro YAMAGUCHI ,  Nobuhiro TAKATA ,  Keita KONDOU

IPC: B23K26/04 ,  B23K26/08 ,  B23K26/14 ,  B23K26/18

CPC classification number: B23K26/048 ,  B23K26/0869 ,  B23K26/1476 ,  B23K26/18

Abstract: A laser machining device uses laser light to machine a workpiece disposed in a light-blocking liquid having light-blocking properties. A nozzle unit for the laser machining device includes an inner nozzle through which the laser light passes, a gas outlet port that blows a gas toward the workpiece in order to remove the light-blocking liquid from between the inner nozzle and the workpiece, and a swirler that causes the gas to swirl.