公开(公告)号：US11177625B2

公开(公告)日：2021-11-16

申请号：US16835430

申请日：2020-03-31

Applicant: FANUC CORPORATION

Inventor： Hiroshi Takigawa ,  Hiroyuki Yoshida

IPC: H01S5/024 ,  H01S5/042

Abstract: A laser apparatus comprising a laser diode module/cooling plate assembly in which a plurality of LD modules to which a driving current is supplied in series is disposed on the surface of a cooling plate, comprising: a laser power source; switch valves for switching a flow direction of a cooling liquid flowing through a cooling liquid flow path; a timing determination apparatus for determining the timing for switching the flow direction of the cooling liquid, by referencing temperature time series data of at least any one temperature variation part in the laser diode module/cooling plate assembly having temperature variations due to heat generated in a heat-generating part of the laser diode module; and a control circuit for outputting a driving current output command to the laser power source and outputting a valve switch command to the switch valves by referencing the determination result of the timing determination apparatus.

公开(公告)号：US10263388B2

公开(公告)日：2019-04-16

申请号：US16003483

申请日：2018-06-08

Applicant: FANUC CORPORATION

Inventor： Hiroshi Takigawa ,  Hiroyuki Yoshida

IPC: H01S3/04 ,  H01S5/024 ,  H01S5/06 ,  H01S5/40 ,  H01S5/42

Abstract: An LD module cooling device includes, in a cooling plate, common flow paths that supply/drain a cooling medium in parallel to/from a plurality of cooling portion flow paths that correspond to a plurality of LD modules, in which the cooling portion flow path is a thin layer flow path having a flow path height and a flow path width that are constant in at least a majority of a flow path length, a rectangular shape of the cooling portion flow path defined by the dimensions flow path length×flow path width overlaps with at least the majority of a main contact surface between the cooling plate and the LD modules as viewed from a front surface of the cooling plate, the flow path height of the cooling portion flow path satisfies at least either one of a condition that flow path height is 1/20 or less of the flow path length and the flow path width, and a condition that the flow path height is 0.5 mm or less, and pressure loss of a cooling medium in the cooling portion flow path is greater than pressure loss of a cooling medium in the common flow paths.

公开(公告)号：US09484704B2

公开(公告)日：2016-11-01

申请号：US14712348

申请日：2015-05-14

Applicant: FANUC CORPORATION

Inventor： Hiroyuki Yoshida

IPC: H01S3/034 ,  H01S3/036 ,  H01S3/07 ,  H01S3/097 ,  H01S3/104 ,  H01S3/083 ,  H01S3/223 ,  H01S3/0971 ,  H01S3/03

CPC classification number: H01S3/036 ,  H01S3/03 ,  H01S3/0346 ,  H01S3/073 ,  H01S3/0835 ,  H01S3/09705 ,  H01S3/0971 ,  H01S3/104 ,  H01S3/223 ,  H01S3/2232

Abstract: A laser oscillator comprising an electric discharge excitation part having a discharge tube, and generates laser by excitation discharge of a laser gas flow through the inside of the discharge tube, an optical resonance part which has optical components attached to outsides of end walls of the discharge tube, and resonates laser generated in the discharge tube, and blower piping which connects an intake port and exhaust port of the discharge tube to form a circulation path of laser gas. The end walls of the discharge tube are provided with through holes which connect the inside of the discharge tube and the optical components, and blocking members are arranged in the through holes so as to block the flow of laser gas through the through holes toward the optical components.

Abstract translation: 一种激光振荡器，包括具有放电管的放电激励部分，并且通过激发气体流动通过放电管内部产生激光;光学谐振部件，其具有附接到放电端壁外侧的光学部件 并且使在放电管中产生的激光谐振，以及连接放电管的进气口和排气口的鼓风机配管，以形成激光气体的循环路径。 放电管的端壁设置有连接放电管内部和光学部件的通孔，并且阻挡部件布置在通孔中，以阻止激光气体通过通孔朝向光学 组件。

公开(公告)号：US09331449B2

公开(公告)日：2016-05-03

申请号：US14797735

申请日：2015-07-13

Applicant: FANUC CORPORATION

Inventor： Munekazu Matsuda ,  Hiroyuki Yoshida

IPC: H01S3/22 ,  H01S3/036 ,  H01S3/223 ,  H01S3/225

CPC classification number: H01S3/036 ,  H01S3/10069 ,  H01S3/104 ,  H01S3/22 ,  H01S3/2207 ,  H01S3/2215 ,  H01S3/2222 ,  H01S3/2232 ,  H01S3/2237 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2256

Abstract: A gas laser oscillator includes a first control valve for controlling an amount of laser gas supplied into a gas container, a second control valve for controlling an amount of laser gas exhausted from the gas container, and a controller for controlling openings of the first and second control valves. The controller includes a storage unit for storing data indicating a relationship between the laser gas pressure in the gas container, the opening of the second control valve, and the exhaust amount of laser gas, a gas pressure control unit for controlling the openings of the first and second control valves, respectively, such that the laser gas pressure becomes closer to a reference gas pressure, and a gas consumption amount control unit for controlling the openings of the first and second control valves, respectively, such that the exhaust amount of laser gas becomes closer to a target consumption amount.

Abstract translation: 气体激光振荡器包括用于控制供给到气体容器中的激光气体的量的第一控制阀，用于控制从气体容器排出的激光气体的量的第二控制阀，以及用于控制第一和第二 控制阀。 控制器包括存储单元，用于存储表示气体容器中的激光气体压力，第二控制阀的开度与激光气体的排出量之间的关系的数据;气体压力控制单元，用于控制第一 和第二控制阀，使得激光气体压力变得更接近参考气体压力;以及气体消耗量控制单元，用于分别控制第一和第二控制阀的开口，使得激光气体的排气量 变得更接近目标消费量。

公开(公告)号：US11133643B2

公开(公告)日：2021-09-28

申请号：US16142078

申请日：2018-09-26

Applicant: FANUC CORPORATION

Inventor： Hiroshi Takigawa ,  Yuji Nishikawa ,  Hiroyuki Yoshida ,  Tadashi Kurosawa ,  Atsushi Mori ,  Toshiyasu Shiomi ,  Michinori Maeda ,  Akihiko Nishio

IPC: H01S5/024 ,  H01S5/022 ,  H01S5/068 ,  H01S5/06 ,  H01S5/0222 ,  H01S5/40

Abstract: A laser apparatus includes: a cooling capacity control means which controls the cooling capacity of a heat receiving/cooling unit; a surrounding member which surrounds a dew condensation prevention target unit including a heat generating unit and which reaches a surrounding member equilibrium temperature higher than the maximum dew point temperature within a housing as the temperature of the heat generating unit is increased; and a temperature detection means which detects the temperature of the surrounding member, a control unit compares, while a current output command is being output to a laser power supply unit, a surrounding member temperature with a switching temperature previously set lower than the surrounding member equilibrium temperature and when the surrounding member temperature is lower than the switching temperature, the control unit controls the cooling capacity control means such that the cooling capacity of the heat receiving/cooling unit is a low level whereas when the surrounding member temperature is equal to or more than the switching temperature, the control unit controls the cooling capacity control means such that the cooling capacity of the heat receiving/cooling unit is equal to or higher than a standard level.

公开(公告)号：US09859673B2

公开(公告)日：2018-01-02

申请号：US15165193

申请日：2016-05-26

Applicant: FANUC CORPORATION

Inventor： Hiroshi Takigawa ,  Hiroyuki Yoshida ,  Akihiko Nishio

IPC: G08B17/00 ,  H01S3/00 ,  B23K26/00 ,  B23K26/21 ,  H01S3/04

CPC classification number: H01S3/0014 ,  B23K26/00 ,  B23K26/21 ,  H01S3/0407

Abstract: The laser device of the present invention includes a first temperature sensor which is provided in a housing to detect the temperature of the portion to be cooled, a second temperature sensor and a humidity sensor which are provided outside the housing to respectively detect the temperature and humidity of the air outside the housing. The laser device further includes a judgment unit which judges the possibility of condensation forming on the portion to be cooled by the air outside the housing based on each of the detected results of the first temperature sensor, the second temperature sensor and the humidity sensor, and a notification unit which gives notification of the judgment result of the judgment unit, outside the housing.

公开(公告)号：US20170220927A1

公开(公告)日：2017-08-03

申请号：US15411232

申请日：2017-01-20

Applicant: FANUC CORPORATION

Inventor： Hiroshi Takigawa ,  Hiroyuki Yoshida ,  Hisatada Machida ,  Michinori Maeda ,  Ryusuke Miyata ,  Akinori Ohyama

IPC: G06N3/08 ,  H04L29/08 ,  B23K26/03 ,  H01S5/00

CPC classification number: G06N3/08 ,  B23K26/032 ,  B23K26/21 ,  B23K26/38 ,  B23K26/702 ,  B23K26/705 ,  B23K26/707 ,  B23K37/006 ,  H01S3/10069 ,  H01S5/0021 ,  H04L67/10

Abstract: The machine learning apparatus includes: a state data observing unit which observes state data of the laser apparatus, including data output from a reflected light detecting unit for measuring a reflected light amount; an operation result acquiring unit which acquires a success/failure result indicating whether the machining has been started successfully by the laser beam output from a laser oscillator; a learning unit which learns light output command data by associating the light output command data with the state data of the laser apparatus and the success/failure result of the machining start; and a decision making unit which determines the light output command data by referring to the light output command data learned by the learning unit.

公开(公告)号：US20150333469A1

公开(公告)日：2015-11-19

申请号：US14712348

申请日：2015-05-14

Applicant: FANUC CORPORATION

Inventor： Hiroyuki Yoshida

IPC: H01S3/07 ,  H01S3/034 ,  H01S3/083 ,  H01S3/223 ,  H01S3/104 ,  H01S3/097 ,  H01S3/036

CPC classification number: H01S3/036 ,  H01S3/03 ,  H01S3/0346 ,  H01S3/073 ,  H01S3/0835 ,  H01S3/09705 ,  H01S3/0971 ,  H01S3/104 ,  H01S3/223 ,  H01S3/2232

Abstract: A laser oscillator comprising an electric discharge excitation part having a discharge tube, and generates laser by excitation discharge of a laser gas flow through the inside of the discharge tube, an optical resonance part which has optical components attached to outsides of end walls of the discharge tube, and resonates laser generated in the discharge tube, and blower piping which connects an intake port and exhaust port of the discharge tube to form a circulation path of laser gas. The end walls of the discharge tube are provided with through holes which connect the inside of the discharge tube and the optical components, and blocking members are arranged in the through holes so as to block the flow of laser gas through the through holes toward the optical components.

Abstract translation: 一种激光振荡器，包括具有放电管的放电激励部分，并且通过激发气体流动通过放电管内部产生激光;光学谐振部件，其具有附接到放电端壁外侧的光学部件 并且使在放电管中产生的激光谐振，以及连接放电管的进气口和排气口的鼓风机配管，以形成激光气体的循环路径。 放电管的端壁设置有连接放电管内部和光学部件的通孔，并且阻挡部件布置在通孔中，以阻止激光气体通过通孔朝向光学 组件。

公开(公告)号：US20160336707A1

公开(公告)日：2016-11-17

申请号：US15151890

申请日：2016-05-11

Applicant: FANUC CORPORATION

Inventor： Akihiko Nishio ,  Yuji Nishikawa ,  Hiroyuki Yoshida ,  Hisatada Machida

IPC: H01S3/04 ,  G01K13/00

CPC classification number: H01S3/0407 ,  G01K13/00 ,  H01S3/0014 ,  H01S3/1317 ,  H01S5/0014 ,  H01S5/02423

Abstract: A laser device provided with the function of predicting occurrence of condensation and preventing occurrence of condensation in advance. The laser device is provided with a controlling part calculating a reference temperature for judging whether a cooling water feed device may feed cooling water based on a temperature measured by a thermometer and a humidity measured by a hygrometer, and a comparing part comparing a reference temperature and a cooling water temperature. The cooling water feed device is configured to stop the feed of cooling water after a command for starting up the laser oscillator has been output and the cooling water temperature is lower than the reference temperature and to start or continue the feed of cooling water when the cooling water temperature is the reference temperature or more.

Abstract translation: 一种预先具有预测冷凝发生功能并防止发生冷凝的功能的激光装置。 该激光装置设有控制部，其计算基准温度，用于判断冷却水供给装置是否可以基于由温度计测量的温度和由湿度计测量的湿度供给冷却水;以及比较部，将比较基准温度和 冷却水温度。 冷却水供给装置被配置为在已经输出了用于启动激光振荡器的命令并且冷却水温度低于参考温度之后停止冷却水的供给，并且当冷却水开始或继续供应冷却水时 水温是参考温度以上。

公开(公告)号：US20160297032A1

公开(公告)日：2016-10-13

申请号：US15092060

申请日：2016-04-06

Applicant: FANUC CORPORATION

Inventor： Hiroyuki Yoshida

IPC: B23K26/064 ,  B23K26/02

CPC classification number: B23K26/03 ,  B23K26/034 ,  B23K26/083 ,  B23K26/0884 ,  B23K26/21 ,  B23K26/38

Abstract: A laser oscillator of a laser processing system includes a light emitting part for emitting a laser beam, a power source for supplying electric power to the light emitting part so as to emit a laser beam, and a laser controlling part for controlling the power source. Both the light emitting part and the laser controlling part are provided in a support structure, which is movable away from a laser processing apparatus, and are movable together with the support structure.

Abstract translation: 激光加工系统的激光振荡器包括用于发射激光束的发光部分，用于向发光部分提供电力以发射激光束的电源以及用于控制电源的激光控制部分。 发光部和激光控制部均设置在能够远离激光加工装置移动的支撑结构中，并与支撑结构一起移动。