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公开(公告)号：US10242325B2
公开(公告)日：2019-03-26
申请号：US15454724
申请日：2017-03-09
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Michinori Maeda
IPC: G06N99/00 , G06N5/04 , H01S5/024 , H01S5/042 , G05B23/02 , G06N3/04 , H01S5/00 , H01S5/40 , H01S5/068 , H01S5/0683
Abstract: A machine learning apparatus includes: a state amount observation unit that observes a state amount of a laser apparatus including output data from an optical output detection unit, an optical output characteristic recording unit that records history of a driving current and optical output characteristics, and a driving condition/state amount recording unit that records history of a LD unit driving condition data and the state amount; an operation result acquisition unit that acquires a prediction result of characteristics and measurement result of optical output characteristics of the LD unit; a learning unit that learns the LD unit driving condition data with the state amount and the results of the LD unit driving condition data; and a decision-making unit that decides, from a learning result, the LD unit driving condition data.
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公开(公告)号：US20150318657A1
公开(公告)日：2015-11-05
申请号：US14700897
申请日：2015-04-30
Applicant: FANUC CORPORATION
Inventor： Takafumi Murakami , Michinori Maeda
CPC classification number: H01S3/03 , F21V21/14 , H01S3/02 , H01S3/2232
Abstract: A laser oscillator having a mechanism which makes it easy to correct distortion in the laser oscillator, and also has a simple structure. The laser oscillator has a housing located on an installation surface and a resonator held by the housing. The resonator has a total reflecting mirror, an outputting mirror, a discharge tube positioned between the mirrors, and a laser power source which injects excitation energy into the laser medium such as the carbon dioxide gas within the discharge tube. The resonator is held on the housing by means of a holding mechanism, such as a clamp, a bolt or a bearing. The laser oscillator has at least three nonextendable legs having a constant height, and at least one extendable leg having an adjustable height, so that the legs extend from a lower part of the housing.
Abstract translation: 一种具有使激光振荡器中的失真变得容易的机构的激光振荡器，也具有简单的结构。 激光振荡器具有位于安装表面上的壳体和由壳体保持的谐振器。 谐振器具有全反射镜，输出反射镜，位于反射镜之间的放电管，以及将激发能量注入激光介质（例如放电管内的二氧化碳气体）的激光电源。 谐振器通过诸如夹子，螺栓或轴承的保持机构保持在壳体上。 激光振荡器具有至少三个具有恒定高度的不可扩展腿部，以及具有可调高度的至少一个可延伸腿部，使得腿部从壳体的下部延伸。
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公开(公告)号：US20170262772A1
公开(公告)日：2017-09-14
申请号：US15454724
申请日：2017-03-09
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Michinori Maeda
CPC classification number: G06N99/005 , G05B23/0283 , G06N3/0427 , G06N5/04 , H01S5/0021 , H01S5/02423 , H01S5/042 , H01S5/06808 , H01S5/0683 , H01S5/4025
Abstract: A machine learning apparatus includes: a state amount observation unit that observes a state amount of a laser apparatus including output data from an optical output detection unit, an optical output characteristic recording unit that records history of a driving current and optical output characteristics, and a driving condition/state amount recording unit that records history of a LD unit driving condition data and the state amount; an operation result acquisition unit that acquires a prediction result of characteristics and measurement result of optical output characteristics of the LD unit; a learning unit that learns the LD unit driving condition data with the state amount and the results of the LD unit driving condition data; and a decision-making unit that decides, from a learning result, the LD unit driving condition data.
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公开(公告)号：US20160259096A1
公开(公告)日：2016-09-08
申请号：US15057573
申请日：2016-03-01
Applicant: FANUC CORPORATION
Inventor： Takafumi Murakami , Michinori Maeda
Abstract: An optical absorber includes a first light-absorbing body which receives light incident from an entrance aperture and partially absorbs and reflects the incident light, and a second light-absorbing body which partially absorbs the incident light reflected by the first light-absorbing body and partially reflects the incident light toward the first light-absorbing body. The reflectance and light resistance of the first light-absorbing body are set higher than the reflectance and light resistance, respectively, of the second light-absorbing body.
Abstract translation: 光吸收体包括：第一光吸收体，其接收从入射孔入射的光并部分地吸收和反射入射光;第二光吸收体，其部分地吸收由第一光吸收体反射的入射光， 将入射光反射到第一光吸收体。 第一光吸收体的反射率和耐光性分别设定为高于第二光吸收体的反射率和耐光性。
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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
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.
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Patent Agency Ranking
公开(公告)号：US09897481B2
公开(公告)日：2018-02-20
申请号：US15343802
申请日：2016-11-04
Applicant: FANUC CORPORATION
Inventor： Michinori Maeda
CPC classification number: G01J1/4257 , G01J1/0252 , G01J1/0418 , G01J1/0437
Abstract: A low-cost laser power sensor having sufficient measurement accuracy with respect to received light intensity of the power sensor. The power sensor has a sensor substrate which receives monitor light, and a filter which attenuates the intensity of the laser beam before being received by the sensor substrate. The filter is constituted from a material having a laser transmissivity equal to zero, and has a plurality of openings within an irradiation range where the monitor light is irradiated. A summation of opening areas of the openings is equal to or more than 50% of the irradiation range. A part of the laser beam, which is irradiated to the filter and passes through the openings, is directly received by the sensor substrate.
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7.发明申请公开(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
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.
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公开(公告)号：US20170138787A1
公开(公告)日：2017-05-18
申请号：US15343802
申请日：2016-11-04
Applicant: FANUC CORPORATION
Inventor： Michinori Maeda
CPC classification number: G01J1/4257 , G01J1/0252 , G01J1/0418 , G01J1/0437
Abstract: A low-cost laser power sensor having sufficient measurement accuracy with respect to received light intensity of the power sensor. The power sensor has a sensor substrate which receives monitor light, and a filter which attenuates the intensity of the laser beam before being received by the sensor substrate. The filter is constituted from a material having a laser transmissivity equal to zero, and has a plurality of openings within an irradiation range where the monitor light is irradiated. A summation of opening areas of the openings is equal to or more than 50% of the irradiation range. A part of the laser beam, which is irradiated to the filter and passes through the openings, is directly received by the sensor substrate.
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公开(公告)号：US10852711B2
公开(公告)日：2020-12-01
申请号：US16059518
申请日：2018-08-09
Applicant: FANUC CORPORATION
Inventor： Michinori Maeda
IPC: G05B19/414 , G05B19/401 , B23K26/06 , B23K26/08 , H02M1/10 , B23K26/38 , B23K26/20
Abstract: To provide a laser machine allowing size reduction and space saving while guaranteeing a high degree of configurational freedom. A laser machine comprises: a numerical controller; a motor current controller that controls a motor; and a basic unit that supplies DC power to a laser excitation current controller that controls a laser excitation part. The basic unit comprises: an AC input part that receives AC power; an AC/DC converter that converts the AC power supplied from the AC input part to DC power, and supplies the DC power to the motor current controller and the laser excitation current controller; and multiple connection parts that connect the basic unit to the numerical controller, the motor current controller, and the laser excitation current controller mechanically and electrically.
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公开(公告)号：US10516247B2
公开(公告)日：2019-12-24
申请号：US16132572
申请日：2018-09-17
Applicant: FANUC CORPORATION
Inventor： Michinori Maeda
Abstract: A laser oscillator having a condensation prevention mechanism capable of extending the life span of a light emitting device while maintaining cost effectiveness as compared to the conventional technique is provided. The laser oscillator includes: a laser beam generating unit; a heat exchanger; a coolant bypass circuit; a coolant circuit connecting these components; a housing storing these components; a coolant circulating unit that circulates a coolant to the laser beam generating unit, the heat exchanger, and the coolant bypass circuit with the aid of the coolant circuit; a first valve that adjusts a flow rate of the coolant supplied to the laser beam generating unit; a second valve that adjusts a flow rate of the coolant supplied to the heat exchanger; a third valve that adjusts the flow rate of the coolant supplied to the coolant bypass circuit; a dew point measuring unit that measures a dew point inside the housing; a temperature measuring unit that measures a coolant temperature; and a control unit that controls the first, second, and third valves on the basis of the dew point and the coolant temperature.
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