公开(公告)号：US10092978B2

公开(公告)日：2018-10-09

申请号：US14665509

申请日：2015-03-23

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： B23K26/00 ,  B23K26/02 ,  B23K26/08 ,  B23K26/04 ,  B23K26/044

摘要： A laser processing apparatus including a processing nozzle for irradiating a workpiece with laser beam, a driving mechanism for relatively moving the processing nozzle and the workpiece, and a gap sensor for detecting a gap between the processing nozzle and the workpiece. The apparatus includes a gap control section referring to a measured value detected by the gap sensor and calculating a manipulating variable used for controlling the driving mechanism so as to maintain the gap during execution of laser processing at a first dimension, a power monitoring section monitoring electric power from a power supply and sending an abnormality detection signal to the gap control section when a power abnormality occurs, and a control action switching section switching a control action of the gap control section so as to increase the gap from the first dimension when the abnormality detection signal is sent to the gap control section.

公开(公告)号：US20150266133A1

公开(公告)日：2015-09-24

申请号：US14665586

申请日：2015-03-23

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： B23K26/08

CPC分类号： B23K26/0892 ,  B23K26/048 ,  B23K26/083 ,  B23K26/70

摘要： A laser processing apparatus including a processing nozzle for irradiating a workpiece with laser beam; an actuator for moving the processing nozzle relative to the workpiece; a distance detector for detecting a gap between the processing nozzle and the workpiece; a power abnormality detecting section for detecting an abnormality in electric power supplied from a power supply unit; a gap control section for controlling the actuator based on a detected value obtained by the distance detector, so as to perform a gap control for adjusting the gap to a target value, during execution of laser processing; and a change control section for maintaining the gap control in an enabled state until a power abnormality is detected by the power abnormality detecting section during execution of laser processing, and for disabling the gap control when a power abnormality is detected by the power abnormality detecting section during execution of laser processing.

摘要翻译： 一种激光加工设备，包括：用激光束照射工件的处理喷嘴; 用于使处理喷嘴相对于工件移动的致动器; 距离检测器，用于检测处理喷嘴和工件之间的间隙; 电力异常检测部，用于检测从电源单元供给的电力的异常; 间隙控制部分，用于基于由距离检测器获得的检测值来控制致动器，以便在执行激光加工期间执行用于将间隙调整到目标值的间隙控制; 以及改变控制部分，用于在执行激光处理期间将间隙控制保持在使能状态，直到由电力异常检测部分检测到电力异常，并且当由电力异常检测部分检测到电力异常时禁止间隙控制 在执行激光加工时。

公开(公告)号：US10328522B2

公开(公告)日：2019-06-25

申请号：US14665586

申请日：2015-03-23

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： B23K26/00 ,  B23K26/02 ,  B23K26/08 ,  B23K26/04 ,  B23K26/70

摘要： A laser processing apparatus including a processing nozzle for irradiating a workpiece with laser beam; an actuator for moving the processing nozzle relative to the workpiece; a distance detector for detecting a gap between the processing nozzle and the workpiece; a power abnormality detecting section for detecting an abnormality in electric power supplied from a power supply unit; a gap control section for controlling the actuator based on a detected value obtained by the distance detector, so as to perform a gap control for adjusting the gap to a target value, during execution of laser processing; and a change control section for maintaining the gap control in an enabled state until a power abnormality is detected by the power abnormality detecting section during execution of laser processing, and for disabling the gap control when a power abnormality is detected by the power abnormality detecting section during execution of laser processing.

公开(公告)号：US20180339366A1

公开(公告)日：2018-11-29

申请号：US16052900

申请日：2018-08-02

申请人： Fanuc Corporation

发明人： Hiroaki Tokito

IPC分类号： B23K26/08 ,  B23K26/044 ,  B23K26/04

CPC分类号： B23K26/0892 ,  B23K26/043 ,  B23K26/044

摘要： A laser processing apparatus including a processing nozzle for irradiating a workpiece with laser beam, a driving mechanism for relatively moving the processing nozzle and the workpiece, and a gap sensor for detecting a gap between the processing nozzle and the workpiece. The apparatus includes a gap control section referring to a measured value detected by the gap sensor and calculating a manipulating variable used for controlling the driving mechanism so as to maintain the gap during execution of laser processing at a first dimension, a power monitoring section monitoring electric power from a power supply and sending an abnormality detection signal to the gap control section when a power abnormality occurs, and a control action switching section switching a control action of the gap control section so as to increase the gap from the first dimension when the abnormality detection signal is sent to the gap control section.

公开(公告)号：US20210104860A1

公开(公告)日：2021-04-08

申请号：US17016797

申请日：2020-09-10

申请人： Fanuc Corporation

发明人： Wataru Hanakawa ,  Hiroaki Tokito

IPC分类号： H01S3/067 ,  B23K26/06 ,  H01S3/00

摘要： A laser system preventing a light-guiding member that guides a laser beam from being overheated is provided. A laser system includes a laser device including a resonator section configured to generate a laser beam and a light-guiding member configured to guide the laser beam generated by the resonator section, a detection device configured to detect, as a detection value, a temperature of the laser device or a magnitude of the laser beam guided by the light-guiding member, an emission control section configured to stop emission of the laser beam from the resonator section to the light-guiding member when the detection value exceeding a predetermined threshold, and a stop-time determination section configured to determine a stop time for causing the emission control section to stop emission of the laser beam based on the detection value detected by the detection device.

公开(公告)号：US09895769B2

公开(公告)日：2018-02-20

申请号：US14978567

申请日：2015-12-22

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： B23K26/04

CPC分类号： B23K26/048

摘要： A laser processing device having a function for avoiding interference during an approach motion of a processing nozzle of the laser processing device. When a distance between a processing nozzle and a workpiece is equal to a setting value where gap control can be started, it is judged as to whether or not the mechanical position of the processing nozzle is above a predetermined processing start position. When the mechanical position of the processing nozzle is higher than the processing start position, a controller judges that an abnormality occurs by which laser processing cannot be carried out, and automatically stops the approach motion of the processing nozzle.

公开(公告)号：US10335898B2

公开(公告)日：2019-07-02

申请号：US16052900

申请日：2018-08-02

申请人： Fanuc Corporation

发明人： Hiroaki Tokito

IPC分类号： B23K26/00 ,  B23K26/02 ,  B23K26/08 ,  B23K26/04 ,  B23K26/044

摘要： A laser processing apparatus including a processing nozzle for irradiating a workpiece with laser beam, a driving mechanism for relatively moving the processing nozzle and the workpiece, and a gap sensor for detecting a gap between the processing nozzle and the workpiece. The apparatus includes a gap control section referring to a measured value detected by the gap sensor and calculating a manipulating variable used for controlling the driving mechanism so as to maintain the gap during execution of laser processing at a first dimension, a power monitoring section monitoring electric power from a power supply and sending an abnormality detection signal to the gap control section when a power abnormality occurs, and a control action switching section switching a control action of the gap control section so as to increase the gap from the first dimension when the abnormality detection signal is sent to the gap control section.

公开(公告)号：US09800012B2

公开(公告)日：2017-10-24

申请号：US15367581

申请日：2016-12-02

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： H01S3/13 ,  H01S3/23 ,  H01S5/068 ,  H01S3/10

CPC分类号： H01S3/1305 ,  H01S3/0014 ,  H01S3/10069 ,  H01S3/2383 ,  H01S5/06808 ,  H01S5/06825 ,  H01S5/0683

摘要： A control apparatus for a laser oscillator includes an abnormality determining unit which determines an abnormality of a first assembly based on a first deviation between a first laser beam output command and a first laser beam output and which determines an abnormality of a second assembly based on a second deviation between a second laser beam output command and a second laser beam output, a command unit for issuing a predetermined current command to at least one of a first power unit and a second power unit when the abnormality determining unit determines that at least one of the first assembly and the second assembly has an abnormality, and an abnormality determination stopping unit for stopping the abnormality determining unit from determining an abnormality when the predetermined current command is issued.

公开(公告)号：US20170163002A1

公开(公告)日：2017-06-08

申请号：US15367581

申请日：2016-12-02

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： H01S3/13 ,  H01S3/23

CPC分类号： H01S3/1305 ,  H01S3/0014 ,  H01S3/10069 ,  H01S3/2383 ,  H01S5/06808 ,  H01S5/06825 ,  H01S5/0683

摘要： A control apparatus for a laser oscillator includes an abnormality determining unit which determines an abnormality of a first assembly based on a first deviation between a first laser beam output command and a first laser beam output and which determines an abnormality of a second assembly based on a second deviation between a second laser beam output command and a second laser beam output, a command unit for issuing a predetermined current command to at least one of a first power unit and a second power unit when the abnormality determining unit determines that at least one of the first assembly and the second assembly has an abnormality, and an abnormality determination stopping unit for stopping the abnormality determining unit from determining an abnormality when the predetermined current command is issued.

公开(公告)号：US20160184923A1

公开(公告)日：2016-06-30

申请号：US14978567

申请日：2015-12-22

申请人： FANUC CORPORATION

发明人： Hiroaki Tokito

IPC分类号： B23K26/04

CPC分类号： B23K26/048

摘要： A laser processing device having a function for avoiding interference during an approach motion of a processing nozzle of the laser processing device. When a distance between a processing nozzle and a workpiece is equal to a setting value where gap control can be started, it is judged as to whether or not the mechanical position of the processing nozzle is above a predetermined processing start position. When the mechanical position of the processing nozzle is higher than the processing start position, a controller judges that an abnormality occurs by which laser processing cannot be carried out, and automatically stops the approach motion of the processing nozzle.

摘要翻译： 一种激光加工装置，其具有在激光加工装置的加工喷嘴的接近运动期间避免干涉的功能。 当处理喷嘴和工件之间的距离等于可以开始间隙控制的设定值时，判断处理喷嘴的机械位置是否高于预定的处理开始位置。 当处理喷嘴的机械位置高于处理开始位置时，控制器判断出不能进行激光加工的异常，并且自动停止处理喷嘴的接近运动。