公开(公告)号：US5966398A

公开(公告)日：1999-10-12

申请号：US952786

申请日：1997-11-26

申请人： Norio Karube ,  Yasuyuki Morita ,  Kenji Nakahara ,  Kenji Mitsui

发明人： Norio Karube ,  Yasuyuki Morita ,  Kenji Nakahara ,  Kenji Mitsui

IPC分类号： F04D29/42 ,  F04D29/06 ,  H01S3/036 ,  H01S3/041

CPC分类号： F04D29/063 ,  H01S3/036

摘要： In a gas laser blower, the lower end opening of the oil passage (14) extends below the liquid level of the oil reservoir (17), so that the internal chamber (18) of housing and the oil passage (14) are separated by the oil within the oil reservoir. Further, a cylindrical guard (24) is disposed around the lower bearing (6) which supports the shaft so that the oil and oil mist scattered from the bearing are caught by the guard (24) and is returned to the oil reservoir.

摘要翻译： PCT No.PCT / JP97 / 01137 Sec。 371日期：1997年11月26日 102（e）1997年11月26日PCT PCT 1997年4月2日PCT公布。 公开号WO97 / 37405 日期1997年10月9日在气体激光鼓风机中，油路14的下端开口延伸到储油器17的液面以下，使得壳体的内室18和油路 14）由油储存器内的油分离。 此外，在支承轴的下轴承6的周围配置有圆筒状的保护罩24，使得从轴承散落的油和油雾被防护罩24卡住，返回到储油部。

公开(公告)号：US5900171A

公开(公告)日：1999-05-04

申请号：US913775

申请日：1997-09-23

申请人： Norio Karube ,  Yoshinori Nakata ,  Kenji Mitsui

发明人： Norio Karube ,  Yoshinori Nakata ,  Kenji Mitsui

IPC分类号： B23K26/06 ,  B23K26/08 ,  B23K26/10

CPC分类号： B23K26/0876 ,  B23K26/0066 ,  B23K26/10 ,  B23K26/20 ,  B23K37/0235

摘要： A laser machining apparatus capable of performing a high-speed and high-precision machining of a workpiece. One end of each of a first-axis and a second-axis expandable arms is supported on a fulcrum. The fulcrum is angularly movably within a predetermined range about the fulcrum in a plane parallel to a machining plane. A machining head is supported at a joint point of the first-axis and second axis expandable arms. Each arm has a ball screw and a cover having an expandable and contractible tube structure, and the machining head has a ball nut threaded to engage with the ball screw. As the ball screw is rotated by a servomotor, the arm extends and contracts to move the machining head. A Z-axis adjusting mechanism is provided between a joint portion of each arm and the machining head and a machining nozzle that is disposed on a tip of the machining head. A three-dimensional parallel drive system or a combination of a serial drive system and a parallel drive system may be used to drive the machining head.

摘要翻译： PCT No.PCT / JP97 / 00160 Sec。 371日期1997年9月23日 102（e）1997年9月23日PCT PCT 1997年1月24日PCT公布。 公开号WO97 / 27023 日期1997年7月31日能够对工件进行高速高精度加工的激光加工装置。 第一轴和第二轴可伸缩臂中的每一个的一端支撑在支点上。 该支点在与加工平面平行的平面内以支点为中心在预定范围内成角度地移动。 加工头在第一轴和第二轴可伸缩臂的接合点处被支撑。 每个臂具有滚珠丝杠和具有可膨胀和收缩的管结构的盖，并且加工头具有螺纹以与滚珠丝杠啮合的滚珠螺母。 当滚珠丝杠由伺服电机旋转时，臂伸展并收缩以移动加工头。 Z轴调节机构设置在各臂的接合部和加工头之间，并且设置在加工头的前端的加工用喷嘴。 可以使用三维并行驱动系统或串行驱动系统和并行驱动系统的组合来驱动加工头。

公开(公告)号：US5856992A

公开(公告)日：1999-01-05

申请号：US776538

申请日：1997-01-29

申请人： Norio Karube ,  Yasuyuki Morita ,  Kenji Nakahara ,  Kenji Mitsui

发明人： Norio Karube ,  Yasuyuki Morita ,  Kenji Nakahara ,  Kenji Mitsui

IPC分类号： H01S3/03 ,  F04D29/10 ,  F04D29/12 ,  F16C33/80 ,  F16C37/00 ,  H01S3/036 ,  H01S3/22

CPC分类号： F16C33/80 ,  F04D29/102 ,  F04D29/122 ,  F16C37/00 ,  H01S3/036

摘要： In a blower for compulsorily circulating a laser gas for a gas laser apparatus, a shaft (2) of an impeller (1) is fitted with an intermediate member (66) that rotates together therewith, and rings (641, 642) are fitted individually in annular grooves (651, 652) formed on the intermediate member (66). On the other hand, a bearing holder (60) for holding a bearing (5) that supports the shaft (2) is provided with a ring holder (63) having an inner wall kept normally in contact with the respective outer peripheral surfaces of the rings (641, 642). As a result, narrow axial gaps between the rings (641, 642) and the annular grooves (651, 652) prevent gaseous impurities from getting into a gas laser circulation path through a bearing (5).

摘要翻译： PCT No.PCT / JP96 / 01540 Sec。 371日期1997年1月29日 102（e）1997年1月29日PCT PCT 1996年6月6日PCT公布。 WO96 / 39732 PCT公开号 日期1996年12月12日在用于强制循环用于气体激光装置的激光气体的鼓风机中，叶轮（1）的轴（2）装配有与其一起旋转的中间构件（66），并且环（641， 642）分别安装在形成在中间构件（66）上的环形槽（651,652）中。 另一方面，用于保持支撑轴（2）的轴承（5）的轴承座（60）设置有环保持器（63），该环保持器（63）的内壁保持与所述轴（2）的各个外周面正常接触 戒指（641,642）。 结果，环（641,642）和环形槽（651,652）之间的窄的轴向间隙防止气体杂质通过轴承（5）进入气体激光循环路径。

公开(公告)号：US4866238A

公开(公告)日：1989-09-12

申请号：US196218

申请日：1988-03-28

申请人： Norio Karube

发明人： Norio Karube

IPC分类号： B23K26/08 ,  B23K26/00 ,  B23K26/10 ,  B25J19/00 ,  H01S3/03 ,  H01S3/036 ,  H01S3/097 ,  H01S3/101 ,  H01S3/104

CPC分类号： B23K26/0884 ,  B25J19/0025 ,  H01S3/036

摘要： A gas laser device in which a laser medium gas is circulated in an airtight container and a laser beam is generated from the gas excited by an electric discharge, includes a main unit (10) including an air blower and a heat exchanger for circulating and cooling the gas, and a discharging power supply. A laser beam emitter includes a resonator (2). The main unit and the laser beam emitter are separate from each other, with the laser beam emitter being mounted on the tip end of a robot (1). The resonator (2) includes a lateral multimode resonator, and the discharging power supply includes a high-frequency power supply. A gas flow in the resonator (2) is produced by using a compressor having a high compression ratio.

公开(公告)号：US4802184A

公开(公告)日：1989-01-31

申请号：US112565

申请日：1987-09-28

申请人： Norio Karube

发明人： Norio Karube

IPC分类号： H01S3/03 ,  H01S3/038 ,  H01S3/0975 ,  H01S3/223 ,  H01S3/097

CPC分类号： H01S3/0975 ,  H01S3/0387 ,  H01S3/2232

摘要： A high frequency discharge excited coaxial type CO.sub.2 laser is provided, which has both the advantageous characteristic of high frequency excitation type, namely, small size and high efficiency, and the advantageous characteristic of coaxial type, namely, high quality beam mode. This laser includes a dielectric laser tube and two helical electric conductors of the same pitch, and a high frequency voltage is applied between the conductors by a high frequency power source while the CO.sub.2 laser gas is passed axially in the laser tube.

公开(公告)号：US4800567A

公开(公告)日：1989-01-24

申请号：US117149

申请日：1987-09-28

申请人： Norio Karube

发明人： Norio Karube

IPC分类号： H01S3/03 ,  H01S3/038 ,  H01S3/0975

CPC分类号： H01S3/0315 ,  H01S3/038 ,  H01S3/0975

摘要： A high-frequency-discharge excited gas laser is provided, which is adapted to excite a laser gas by applying of a high frequency voltage to electrodes. In order to increase the output capacity of the high-frequency-discharge excited gas laser without sacrificing its virtues of small size, high efficiency and good beam mode, the laser, in its one aspect, has its metallic electrode (1) covered with a dielectric layer (2), with the dielectric layer being detached from the electrode. In another aspect, a pair of metallic films are laid positions diametrically opposite to each other on the outer surface of a laser tube formed of a dielectric pipe.

公开(公告)号：US20070062921A1

公开(公告)日：2007-03-22

申请号：US11520020

申请日：2006-09-13

申请人： Norio Karube ,  Hiroshi Miura

发明人： Norio Karube ,  Hiroshi Miura

IPC分类号： B23K26/38

CPC分类号： B23K26/0604 ,  B23K26/0869 ,  B23K26/38 ,  B23K26/40 ,  B23K26/60 ,  B23K2103/50

摘要： This invention enables the full-body (throughout the entire thickness) scribing of a plate made of fragile material such as glass by irradiating the work with the laser beam for heating with or without cooling and thereby generating the tensile thermal stress in the work which exceeds the cleavage toughness of the material, dispensing with the mechanical breaking. In this invention, the absorption of the beam in the work is so controlled that the beam, while being absorbed in it, is either transmitted through it or reaches the adequate thickness of the work and the entire thickness scribing is realized. This absorption control is done by selecting the laser beam wavelength so as to achieve the proper absorption in the absorption spectra of the material either due to the electronic transition or the lattice vibration. The doping of the material, in which the commercially available high power laser beam can be absorbed properly and either of the absorption or emission in the visible light spectral range does not exist, can also be utilized for this absorption control. In this case, the quenching of the fluorescence which may arise after the beam absorption is useful. This invention enables the profile scribing of work or the selective scribing of piled work consisting of plural number of plates.

摘要翻译： 本发明能够通过用激光束照射加工有或没有冷却进行加热的全体（整个整个厚度）划片由诸如玻璃的脆弱材料制成的板，从而在工件中产生超过的拉伸热应力 材料的裂解韧性，分配机械断裂。 在本发明中，光束在工件中的吸收受到控制，使得光束被吸收在其中，或者透过它或达到工件的适当厚度，并且实现了整个厚度划线。 该吸收控制通过选择激光束波长来实现，以便由于电子跃迁或晶格振动，在材料的吸收光谱中实现适当的吸收。 不存在商品化的大功率激光束可以适当吸收的材料的掺杂和可见光光谱范围的吸收或发射的材料的掺杂也可用于该吸收控制。 在这种情况下，在光束吸收之后可能发生的荧光的猝灭是有用的。 本发明能够进行工作轮廓划线或由多个板组成的堆叠工作的选择性划线。

公开(公告)号：US5434383A

公开(公告)日：1995-07-18

申请号：US075580

申请日：1993-06-16

申请人： Yoshinori Nakata ,  Norio Karube ,  Etsuo Yamazaki

发明人： Yoshinori Nakata ,  Norio Karube ,  Etsuo Yamazaki

IPC分类号： B23K26/00 ,  B23K26/38

CPC分类号： B23K26/382

摘要： A piercing method using a laser, in which the processing time is made shorter; a thermal runaway is prevented; and dispersion of the processing time is made smaller. According to this method, piercing operation is started with an initial pulse frequency P.sub.0 and an initial pulse duty ratio Q.sub.0, and the pulse frequency and the pulse duty ratio are increased by increments P and Q, respectively, with every passage of a predetermined time T. The pulse frequency and the pulse duty ratio are increased by stages. After this increase is repeated a predetermined number of times, or after the passage of a predetermined time from the start of processing, processing is continued to the end maintaining the increased values. This piercing method enables the processing time to be reduced to 1/3 to 1/5, as compared with the conventional method. In addition, this method prevents a thermal runaway, and reduces the dispersion of the processing time.

摘要翻译： PCT No.PCT / JP92 / 01311 Sec。 371日期：1993年6月16日 102（e）日期1993年6月16日PCT提交1992年10月9日PCT公布。 出版物WO93 / 07987 日期：1993年04月29日。一种使用激光的穿孔方法，其中处理时间缩短; 防止热失控; 并且使处理时间的分散更小。 根据该方法，以初始脉冲频率P0和初始脉冲占空比Q0开始穿刺操作，并且脉冲频率和脉冲占空比分别以增量P和Q增加，每次通过预定时间T 脉冲频率和脉冲占空比逐级增加。 在该增加重复预定次数之后，或者在从开始处理经过预定时间之后，继续进行保持增加值的处理。 这种穿孔方法与常规方法相比能够将处理时间缩短到1/3至1/5。 此外，该方法防止热失控，并且减少处理时间的分散。

公开(公告)号：US5252805A

公开(公告)日：1993-10-12

申请号：US852184

申请日：1992-05-29

申请人： Yoshinori Nakata ,  Etsuo Yamazaki ,  Norio Karube ,  Tsuyoshi Nagamine

发明人： Yoshinori Nakata ,  Etsuo Yamazaki ,  Norio Karube ,  Tsuyoshi Nagamine

IPC分类号： B23K26/00 ,  B23K26/08 ,  B23K26/36 ,  B23K26/38 ,  G05B19/416

CPC分类号： G05B19/4163 ,  B23K26/0838 ,  B23K26/382 ,  G05B2219/35249 ,  G05B2219/43129 ,  G05B2219/43147 ,  G05B2219/45165

摘要： A laser beam machining method for cutting a workpiece in accordance with a machining program composed of a succession of move commands and laser output commands. An angle of a machining path is calculated on the basis of a move command under execution and a subsequent read out move command (S2, S3). The angle of the machining path is compared with a preset angle (S4), and when the angle of the machining path is more acute than the preset angle, the movement for machining based on the move command under execution is decelerated and stopped (S5). In this case, the laser output command is changed from a cutting condition to a piercing condition, to carry out a piercing operation, and when the piercing operation is completed, the movement for machining is restarted in accordance with the subsequent move command. When the movement for machining is restarted, the laser output command is changed from the piercing condition to the cutting condition in accordance with the movement for machining. Accordingly, a clean-cut acute-angle portion can be obtained by this machining.

摘要翻译： PCT No.PCT / JP91 / 01371 Sec。 371日期：1992年5月29日 102（e）日期1992年5月29日PCT 1991年10月5日PCT PCT。 出版物WO92 / 06815 日期：1992年04月30日。一种用于根据由一系列移动命令和激光输出命令组成的加工程序切割工件的激光束加工方法。 基于正在执行的移动命令和随后的读出移动命令（S2，S3）来计算加工路径的角度。 将加工路径的角度与预设角度（S4）进行比较，并且当加工路径的角度比预设角度更尖锐时，基于执行中的移动命令的加工移动减速停止（S5） 。 在这种情况下，激光输出指令从切断状态变为穿刺状态，进行穿刺动作，当穿刺动作完成时，根据随后的移动指令重新起动加工动作。 当重新开始加工运动时，激光输出命令根据加工运动从穿孔状态切换到切割状态。 因此，通过该加工可以获得清洁的锐角部分。

公开(公告)号：US5206873A

公开(公告)日：1993-04-27

申请号：US700174

申请日：1991-05-22

申请人： Tsutomu Funakubo ,  Norio Karube ,  Kenji Nakahara

发明人： Tsutomu Funakubo ,  Norio Karube ,  Kenji Nakahara

IPC分类号： F04D21/00 ,  F04D29/04 ,  F04D29/056 ,  F04D29/059 ,  F04D29/58 ,  H01S3/036 ,  H01S3/097

CPC分类号： F04D29/059 ,  F04D29/584 ,  F04D29/5853 ,  H01S3/036

摘要： A turbo blower is used in combination with a gas laser oscillation device for machining, e.g., cutting off, workpieces. The turbo blower comprises a shaft (2) having an impeller (1) on one end thereof, a pair of bearings (5, 6) on which the shaft (2) is supported, and a motor (3, 4) for rotating the shaft. Heat radiating fins (11) are mounted on the shaft (2) for radiating the heat which is generated by a rotor (3) of the motor, thus preventing the heat from being transmitted to the bearings (5, 6). The heat radiating fins are forcibly cooled by a portion of a laser gas for thereby greatly increasing the heat radiation efficiency. The service life of the grease in the bearings and the bearings themselves is increased, thus reducing an expenditure of labor for grease replenishment and bearing replacement. The bearings are also increased in reliability.

摘要翻译： PCT No.PCT / JP90 / 01227 Sec。 371日期1991年5月22日 102（e）日期1991年5月22日PCT 1990年9月21日PCT PCT。 出版物WO91 / 05384 日期1991年4月18日。涡轮鼓风机与气体激光振荡装置组合使用，用于机械加工，例如切断工件。 涡轮式鼓风机包括在其一端具有叶轮（1）的轴（2），支撑有轴（2）的一对轴承（5,6）和用于使所述轴（2）旋转的马达（3,4） 轴。 热辐射翅片（11）安装在轴（2）上，用于辐射由马达的转子（3）产生的热量，从而防止热量传递到轴承（5,6）。 散热片被一部分激光气体强制冷却，从而大大提高了散热效率。 润滑脂在轴承和轴承本身的使用寿命增加，从而减少润滑脂补充和轴承更换的人力消耗。 轴承的可靠性也提高了。