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公开(公告)号：US06555784B2
公开(公告)日：2003-04-29
申请号：US09832206
申请日：2001-04-11
IPC分类号： B23K2636
CPC分类号： B23K26/0613 , B23K26/0604 , B23K26/067
摘要： A laser machining apparatus with a simplified laser beam transmitting network. Respective laser beams form laser generators LS#11 to LS#25 divided into groups of G1 and G2 are aggregated to fiber-optic cables H1 and H2 by confluence devices HC1 and HC2 and transmitted to a most upstream laser beam outlet OP1. The laser beams are further aggregated to a fiber-optic cable H3 and distributed to a branch fiber-optic cable HH1 by the laser beam outlet OP1, and then distributed by laser beam outlet OP2 to OP8 to branch fiber-optic cables HH2 to HH8. The laser beams distributed to branch fiber-optic cables are focused by the machining tools TL1 to TL8 attached to robots RB1 to RB8 for laser machining. By controlling output levels of the laser generators with different oscillation wavelengths and different polarization characteristics, blend ratio of the laser beams can be adjusted. Distribution ratios of the laser beams at the laser beam outlets OP1 to OP8 are adjustable.
摘要翻译： 激光加工设备，具有简化的激光束传输网络。 各激光束形成分为G1和G2组的激光发生器LS＃11至LS＃25通过汇流装置HC1和HC2聚集到光纤电缆H1和H2并传输到最上游的激光束出口OP1。 激光束进一步聚集到光纤电缆H3，并由激光束出口OP1分配到分支光纤电缆HH1，然后由激光束出口OP2分配到OP8以分支光纤电缆HH2至HH8。 分配到分支光纤电缆的激光束由机器人RB1至RB8附加的加工工具TL1至TL8聚焦，用于激光加工。 通过控制具有不同振荡波长和不同极化特性的激光发生器的输出电平，可以调整激光束的混合比。 激光束出口OP1至OP8处的激光束的分布比是可调节的。
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公开(公告)号：US06538231B2
公开(公告)日：2003-03-25
申请号：US09813025
申请日：2001-03-21
IPC分类号： B23K2606
CPC分类号： B23K26/0613 , B23K26/067
摘要： A plurality of laser generators are provided to be environmentally separated from a machining station, and temperature, humidity, vibration, cleanliness and the like are detected by a sensor, and displayed. When an abnormal environment is detected, machining operation is stopped immediately or after a predetermined time elapsed. The laser generators are grouped according to each machining tool, and fiber-optic cable switching devices FC3 and FC4 are arranged for each group. By the switchover of the laser generator, and the selective connection of a fiber-optic cable by using the fiber-optic cable switching device, the degree of freedom in selecting the laser generator and the fiber-optic cable is produced. The degree of freedom is utilized according to the abnormality of the laser generator, the abnormality of the fiber-optic cable, the type of machining work, and the like, by which a machining apparatus in which the occurrence of a partial failure does not lead to long-term shutdown of a manufacturing line can be obtained.
摘要翻译： 多个激光发生器被设置为与加工台环境分离，并且通过传感器检测温度，湿度，振动，清洁度等并显示。 当检测到异常环境时，立即停止加工操作或经过预定时间。 激光发生器根据每个加工工具进行分组，并为每个组布置光纤电缆交换设备FC3和FC4。 通过激光发生器的切换以及通过使用光纤电缆切换装置选择性地连接光纤电缆，产生了选择激光发生器和光纤电缆的自由度。 根据激光发生器的异常，光纤电缆的异常，加工工作的类型等来利用自由度，通过该自由度，发生部分故障的加工装置不会导致 可以获得长期停产的生产线。
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公开(公告)号：US4887272A
公开(公告)日：1989-12-12
申请号：US295203
申请日：1988-12-20
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975 , H01S3/134
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. The laser oscillator device has current detectors (CT2a, CT2b) for detecting currents flowing from high-frequency power supplies (26a, 26b) into discharge tubes (1). The current detectors are disposed in positions to detect mutual currents between the adjacent discharge tubes. The currents detected by the current detectors (CT2a, CT2b) are used as feedback currents for preventing uncontrollable conditions of the currents due to a coupling current. The laser oscillator device also has a mechanism for preventing interference in the discharge regions.
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公开(公告)号：US4921357A
公开(公告)日：1990-05-01
申请号：US283478
申请日：1988-12-02
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. The laser oscillator device includes a DC power supply (16), and a high-frequency power supply (18, 19, 20, 21) for converting a DC voltage into a high-frequency voltage. The DC power supply (16) and the high-frequency power supply (18, 19, 20, 21) are coupled to each other by a filter (30). The filter (30) prevents a high-frequency component from being fed back from the high-frequency power supply (18, 19, 20, 21) to prevent the laser oscillator device from operating unstably due to parasitic oscillation. Other arrangements are disclosed for preventing interference between the high-frequency power supply and the DC power supply.
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公开(公告)号：US6055263A
公开(公告)日：2000-04-25
申请号：US930345
申请日：1997-09-30
申请人： Norio Karube , Nobuaki Iehisa , Kenji Mitsui
发明人： Norio Karube , Nobuaki Iehisa , Kenji Mitsui
IPC分类号： H01S3/06 , H01S3/07 , H01S3/08 , H01S3/0941 , H01S3/16
CPC分类号： H01S3/0941 , H01S3/0606 , H01S3/0612 , H01S3/0615 , H01S3/08095 , H01S3/093
摘要： A solid-state laser oscillating device which is inexpensive and capable of obtaining a high power. A plurality of laser crystals (YAG laser crystals, etc.) (1a, 1b, 1c) are arranged along the optical axis of an optical resonator so as to maintain optical contact with one another. Adjacent ones of the laser crystals have surfaces facing each other with an adhesive layer (10, 20) interposed therebetween, to form an array in a straight-line as a whole. An adhesive having a low light absorbance with respect to a laser beam of oscillation wavelength or an excitation light is used for forming the adhesive layers (10, 20). If the refractive index of the adhesive is substantially equal to that of the laser crystals, optical matching is achieved. The adhesive layers (10, 20) may be replaced by some other transparent material. The adjacent laser crystals may be arranged with a narrow gap therebetween or held in surface contact with each other.
摘要翻译： PCT No.PCT / JP97 / 00260 Sec。 371日期：1997年9月30日 102（e）1997年9月30日PCT PCT 1997年2月3日PCT公布。 公开号WO97 / 28585 PCT 日期：1997年8月7日一种廉价且能够获得高功率的固体激光振荡装置。 沿着光谐振器的光轴布置多个激光晶体（YAG激光晶体等）（1a，1b，1c），以保持彼此的光学接触。 相邻的激光晶体具有彼此面对的表面，其间插入有粘合剂层（10,20），以形成整体上的直线阵列。 使用相对于振荡波长的激光束或激发光具有低吸光度的粘合剂来形成粘合剂层（10,20）。 如果粘合剂的折射率基本上等于激光晶体的折射率，则实现光学匹配。 粘合剂层（10,20）可以被一些其它透明材料代替。 相邻的激光晶体可以布置成彼此之间的窄间隙或彼此保持表面接触。
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公开(公告)号：US4930135A
公开(公告)日：1990-05-29
申请号：US283479
申请日：1988-12-05
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. Various interferences in the laser oscillator device are prevented to allow the device to produce a stable output. The laser oscillator device includes DC power supplies (DC12a, DC13a, DC13c, DC13d) and high-frequency power supplies (RF12b, RF13b, RF14b, RF15b) which are integrally coupled to prevent electromagnetic interference through cables for allowing stable laser oscillation and also to prevent various other interferences.
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公开(公告)号：US5580470A
公开(公告)日：1996-12-03
申请号：US399653
申请日：1995-03-07
申请人： Hitoshi Enokizono , Nobuaki Iehisa
发明人： Hitoshi Enokizono , Nobuaki Iehisa
CPC分类号： B23K26/0622
摘要： An output waveform control device generates a pulse wave by processing waveform data from a CNC (Computer Numerical Control) unit and delivers the pulse wave for pulsed oscillation of a laser beam. The waveform data transferred from the CNC (Computer Numerical Control) unit is input to a duration-allocating device provided within a laser oscillator. The duration-allocating device of the laser oscillator allocates a duration .DELTA.T, set to a desired value, to each step of the waveform data W. The durations .DELTA.T are allocated in a shorter-to-longer order, and the resulting waveform data is transferred to a pulse wave-generating device. The pulse wave-generating device generates a pulse wave P1 based on the received waveform data W. The pulse wave P1 thus generated is preferably includes 20 pulse segments, each of which has a duration .DELTA.T allocated thereto which can vary from one segment to another. Accordingly, each pulse segment of the pulse wave P1 has a duration set as desired, and the pulse wave duration .SIGMA..DELTA.T as a total of the durations .DELTA.T, can be set as desired. This makes it possible to carry out laser beam machining in a suitable manner dependent on the type of machining.
摘要翻译： 输出波形控制装置通过处理来自CNC（计算机数字控制）单元的波形数据产生脉冲波，并传送用于激光束的脉冲振荡的脉冲波。 从CNC（计算机数字控制）单元传送的波形数据被输入到设置在激光振荡器内的持续时间分配装置。 激光振荡器的持续时间分配装置为波形数据W的每个步骤分配设置为期望值的持续时间DELTA T.持续时间DELTA T以更短的时间被分配，并且得到的波形数据 被传送到脉波产生装置。 脉波产生装置基于接收到的波形数据W产生脉搏波P1。由此产生的脉搏波P1优选地包括20个脉冲段，每个脉冲段具有分配给它的持续时间DELTA T，其可以从一个段到另一个段变化 。 因此，脉搏波P1的每个脉冲段具有根据需要设置的持续时间，并且可以根据需要设置作为持续时间DELTA T的总和的脉搏波长度SIGMA DELTA T。 这使得可以根据加工类型以合适的方式进行激光束加工。
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公开(公告)号：US5206473A
公开(公告)日：1993-04-27
申请号：US601720
申请日：1990-10-23
申请人： Kazuhiro Suzuki , Nobuaki Iehisa
发明人： Kazuhiro Suzuki , Nobuaki Iehisa
CPC分类号： G05B19/4063 , B23K28/00
摘要： There is provided an NC laser device including a combination of a numerical control device and a laser oscillator. A laser output command is sent to an output control circuit at the time of starting and the laser output is monitored by a power sensor to obtain a ratio of the command value to a monitored value. This ratio is stored in a non-volatile memory, the difference between this ratio and the ratio obtained at a previous start is obtained, and if the difference is higher than a predetermined set value, indicative that an abnormality has occurred during the non-operative period of the device, an alarm is displayed on a display screen.
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公开(公告)号：US5067086A
公开(公告)日：1991-11-19
申请号：US397460
申请日：1989-08-21
申请人： Etsuo Yamazaki , Nobuaki Iehisa
发明人： Etsuo Yamazaki , Nobuaki Iehisa
IPC分类号： B23K26/00 , B23K26/04 , B23K26/08 , G05B19/18 , G05B19/19 , G05B19/404 , G05B19/41 , G05B19/42 , G05B19/425
CPC分类号： B23K26/046 , B23K26/048 , B23K26/08 , B23K26/0884 , G05B19/41 , G05B19/425 , G05B2219/36417 , G05B2219/37425 , G05B2219/45165 , G05B2219/49362
摘要： A three-dimensional shape machining laser device for performing three-dimensional machining. The device comprises a teaching box (20) for teaching NC commands, a sensor (43) for detecting the distance between the distal end of a nozzle and a work, a control apparatus (10) which includes command storage apparatus for storing the NC commands, NC command execution apparatus for executing the NC commands, tracing apparatus for controlling the gap between the nozzle and the work to a predetermined value, interrupt control apparatus for interrupting the execution of an NC command program, correction value calculation apparatus for calculating correction command values used for correcting coordinate values, and correction apparatus for correcting command values in accordance with the correction command values, etc. Tracer control is performed during execution of the NC commands, and when an amount of deviation from a path according to the NC commands exceeds a predetermined value, correction values are inserted to correct the path. Alternatively, the NC commands are executed without performing the tracer control. When an amount of deviation of the gap exceeds a predetermined value, correction values are inserted to correct the path. Teaching data can therefore be easily checked for accuracy and corrected, whereby reliable teaching data can be obtained.
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公开(公告)号：US20080165814A1
公开(公告)日：2008-07-10
申请号：US11785620
申请日：2007-04-19
申请人： Nobuaki Iehisa
发明人： Nobuaki Iehisa
IPC分类号： H01S3/13
CPC分类号： B23K26/24 , B23K26/064 , B23K26/0853 , B23K26/702 , H01S3/0941 , H01S3/10069 , H01S3/1312 , H01S3/1643 , H01S5/0428 , H01S5/0617 , H01S5/0683
摘要： A pulse oscillating type solid laser unit that has a laser unit body whose exciting source is a laser diode that emits light in a principal energy absorbing spectrum of a solid laser activated media, and characterized by that prior to radiating laser light outside the laser unit body as a calibrating operation of a pulse laser output value, specified several varieties of rectangle pulse current values are conducted to a laser diode inside the pulse oscillating type solid laser unit so as to pulse-oscillate the laser unit body, a mean laser output value in each rectangle pulse current value is measured by the use of a laser output measuring instrument arranged inside the laser unit body so as to obtain a mean laser output value data, and in case that the laser output light is radiated outside the laser unit body, a pulse current value linear-predicted based on an obtained mean output value data is conducted to the laser diode so as to obtain a desired pulse laser output value.
摘要翻译： 一种脉冲振荡型固体激光器单元，其具有激光单元体，其激励源为激光二极管，其以固体激光活化介质的主能量吸收光谱发光，其特征在于，在激光单元体外部照射激光 作为脉冲激光输出值的校准操作，将脉冲振荡型固体激光器单元内的激光二极管指定若干种矩形脉冲电流值，以脉冲振荡激光单元体，平均激光输出值 通过使用布置在激光单元体内的激光输出测量仪器来测量每个矩形脉冲电流值，以获得平均激光输出值数据，并且在激光输出光照射到激光单元体外部的情况下， 基于获得的平均输出值数据线性预测的脉冲电流值被传送到激光二极管，以获得期望的脉冲激光输出值。
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