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71. 发明专利

JPH03120427A MONITORING LASER OSCILLATION OUTPUT 失效
公开(公告)号：JPH03120427A
公开(公告)日：1991-05-22
申请号：JP25700589
申请日：1989-10-03
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGURA YASUMI , ISHIDE TAKASHI , HASHIMOTO YOSHIO , NAGASHIMA TADASHI , AKAHA TAKASHI
IPC分类号： G01J1/42 , B23K26/00 , H01S3/00
摘要： PURPOSE:To accurately detect the oscillation output of a laser working machine at all times by arranging an optical branching device between a laser oscillator and an object, installing detectors on both sides of the branching device and processing their detection outputs. CONSTITUTION:Quartz glass 4 is arranged between the laser oscillator 1 where a partially transparent mirror 2 is mounted and the object 7 slantingly at about 45 deg. to the traveling direction of a laser beam 8, and the photodiodes 5 and 6 are installed on both sides of the quartz glass 4. When the oscillator 1 projects the laser beam 8, this laser beam 8 is branched by a quartz lens 4 and further reflected between the partially transparent mirror 2 and object 7, and branched by the quartz glass and guided to the photodiodes 5 and 6. Then the intensity of the reflected light detected by the photodiode 6 is multiplied by the reflection factor of he mirror 2 and the result is subtracted from the intensity of monitoring light detected by the photodiode 5 to find the light intensity of the laser beam from which the influence of the reflected light is removed.

72. 发明专利

JPH0347680A GROOVE PROFILE CONTROLLER 失效
公开(公告)号：JPH0347680A
公开(公告)日：1991-02-28
申请号：JP17971389
申请日：1989-07-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUJITA KEN , ISHIDE TAKASHI , TANAKA TAKAMICHI , FUJIWARA MASAHIRO
IPC分类号： B23K9/127
摘要： PURPOSE:To furnish welding of high quality by detecting shape information in a groove by a laser beam displacement sensor, detecting welding information in the groove right and left ends and wire tip positional information and calculating the welding torch position from these bits of information. CONSTITUTION:The laser beam displacement sensor 22 is arranged in front of a welding torch 24 to detect the shape 29 in the groove. The welding information in the grove right and left ends and the welding wire 25 tip positional information 20 are detected by an ITV camera 21. The welding torch 24 position is calculated and controlled by a welding machine controller 28 from these bits of information. By this method, feedback can be executed to welding conditions corresponding to the bead shape.

73. 发明专利

JPH02142688A OPTICAL PART HEAT LENS MONITORING METHOD FOR LASER BEAM MACHINE 失效
公开(公告)号：JPH02142688A
公开(公告)日：1990-05-31
申请号：JP29434688
申请日：1988-11-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURI SHUHEI , SHIMOKUSU YOSHIAKI , ISHIDE TAKASHI , MEGA MASAHIKO
IPC分类号： B23K26/00 , B23K26/064
摘要： PURPOSE:To prevent adverse influence of a heat lens by monitoring a laser beam on a line from right after oscillation, producing an alarm when a laser beam dia. attains reduction limitation by the generation of the heat lens of a transparent optical part and interrupting machining work. CONSTITUTION:A wire-cut type laser beam intensity distribution detecting device 3 is arranged on a laser beam optical path 1. The detecting device 3 is a device where a wire rotates at the constant speed and a detector receives reflected light from the wire and detects an intensity distribution of the laser beam and consists of only a wire rotation system and a sensor part for the purpose of miniaturizing the device and other parts are collected in a distant control box 4. In case the detecting device 3 is arranged at the upper stream of a condenser lens, it is suitable for monitoring a heat lens phenomenon of an oscillator output aperture and in case the detecting device 3 is arranged at the down stream thereof, it is also suitable for monitoring a heat lens phenomenon of the condenser lens 2 at the same time. By this method, machining is interrupted before the adverse influence of the heat lens of the optical part takes place for machining work and the adverse influence is prevented.

74. 发明专利

JPH0259192A LASER BEAM EQUIPMENT WITH LARGE POWER 失效
公开(公告)号：JPH0259192A
公开(公告)日：1990-02-28
申请号：JP21138488
申请日：1988-08-25
申请人： MITSUBISHI HEAVY IND LTD
发明人： ISHIDE TAKASHI
IPC分类号： B23K26/064
摘要： PURPOSE:To obtain a laser beam equipment capable of producing a large power easily and at a low cost by adding up laser beams obtained from plural laser beam oscillators with small power each having different optical axes and reforming them into laser beams having the same optical axis. CONSTITUTION:A wave guide system 30 has plural incident holes 24 of beams these beam paths are concentrated upon one path at the branch point 25 of the wave guide in the central part of the wave guide system to connect with the outgoing hole 26. The laser beams 21 obtained from plural oscillators with small power are injected by reflective mirrors 2 into the wave guide system 30 through the direction of incident holes 24. The beams 21 are condensed by condenser optical systems 23 into the incident holes 24. The original system 23 is composed of a single lens of ZnSe for the CO2 laser beam. The beams 21 condensed at the incident hole 24 repeats multiple reflections in the wave guide 30 and advanced toward the side of the emitting hole 26. Besides, the loss of beam in the wave guide 30 of the beams emitted from the wave guide system 30 is about 15% per one laser beam 21.

75. 发明专利

JPS63264289A LASER BEAM WELDING METHOD 失效
公开(公告)号：JPS63264289A
公开(公告)日：1988-11-01
申请号：JP9627587
申请日：1987-04-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURI SHUHEI , SHIMOKUSU YOSHIAKI , ISHIDE TAKASHI , MEGA MASAHIKO
IPC分类号： B23K26/00 , B23K26/03 , B23K26/04
摘要： PURPOSE:To prevent the energy on the surface of a work from changing and to satisfactorily heat the work by detecting the temperature change of a partial reflection mirror and a condensing mirror of a laser beam oscillator and changing the position of the condensing lens or the work according to the temperature variation to maintain a focus of a laser beam constant. CONSTITUTION:The relation between the temperature of the condensing lens 1 and the variation L of the focusing position is investigated and during heating, the temperature of the condensing lens 1 is constantly monitored by a sensor 2 to detect the temperature rise. Then, the position of the work 5 or the position of the condensing lens 1 is changed by for the variation of the focusing position for the temperature. By this method, the distance between the focusing position of the laser beam 4 and the surface of the work 5 can be maintained at a value equal to an initial set value.

76. 发明专利

JPS63137120A APPARATUS FOR HEAT TREATING SURFACE WITH LASER 失效
公开(公告)号：JPS63137120A
公开(公告)日：1988-06-09
申请号：JP28384586
申请日：1986-11-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURI SHUHEI , SHIMOKUSU YOSHIAKI , ISHIDE TAKASHI , MEGA MASAHIKO
IPC分类号： B23K26/352 , B23K26/06 , B23K26/073 , C21D1/09
摘要： PURPOSE:To obtain a square heat source having uniform intensity and necessary area for heat treatment of surface, by placing a hollow optical waveguide having the shape of a truncated quadrangular pyramid in the titled apparatus so as to squarely concentrate laser beams. CONSTITUTION:Laser beams 4 are passed through a gold lined optical waveguide 9 made of copper to obtain square beams having uniform intensity and a beam profile shown by the figure. When the square beams are radiated on an object 5 and transferred at a proper rate, the surface of the object 5 can be uniformly heat treated.

77. 发明专利

JPS632564A MONITORING METHOD FOR WELDING CONDITION 失效
公开(公告)号：JPS632564A
公开(公告)日：1988-01-07
申请号：JP14413786
申请日：1986-06-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： IIDA YASUHISA , FUJIWARA MASAHIRO , ISHIDE TAKASHI , TANAKA TAKAMICHI
IPC分类号： B23K9/095 , B23K9/00
摘要： PURPOSE:To visualize all of varioud informations of just under a welding arc and to monitor with automatic recognition by using the composite filter having the maximum values of the specific transmission rate respectively on a piece of filter with its combining with a camera system. CONSTITUTION:The composite filter 13 having the maximum value of the transmission rate respectively is used for 8,500-1,050Angstrom for automatically recognizing the shapes of and electrode and for 5,500-6,500Angstrom for automatically recognizing the other groove shape, wire inserting position and beat shape inside, a piece of a filter, is used. The camera optical system 12 fitted to a camera 11 is formed by an optical diaphragm 16 and adaptor 17. The filter 13 is fitted at the front of a camera 13 and connected to a filter rotating motor 14. The monitoring is performed in the stage of the filter 13 coming into the camera optical axis while under welding by the driving of a motor 14. The automatic recognition by the picture processing is possible and suitable for remote scanning and automatic control.

78. 发明专利

JP2014161904A Processing device, and processing method 有权
标题翻译：处理装置和处理方法
公开(公告)号：JP2014161904A
公开(公告)日：2014-09-08
申请号：JP2013038008
申请日：2013-02-27
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： KUREYA MASAYUKI , KINOUCHI MASAHITO , DANNO MINORU , WATANABE TOSHIYA , ISHIDE TAKASHI , YAMASHITA TSUGUMARU , FUJITA YOSHIHITO , YAMAZAKI MAKOTO , SUZUKI RYU , KANEOKA KOHEI
IPC分类号： B23K26/082 , B23K26/00 , B23K26/064 , B23K26/21 , B23K26/38
CPC分类号： B23K26/0652 , B23K26/082 , B23K26/36 , B23K26/38
摘要： PROBLEM TO BE SOLVED: To provide a processing device and a processing method which are capable of processing with simple structure and higher accuracy.SOLUTION: A processing device comprises an irradiation head 16 and a control device. The irradiation head 16 includes a laser pivot part 35 and a light focus optical system 37. The laser pivot part 35 includes a first prism 51, a second prism 52, a first rotation mechanism 53, and a second rotation mechanism 54. The control device controls rotation speeds of and a phase angle difference between the first prism 51 and the second prism 52 at least on the basis of a thermal influence layer of a workpiece and a turn number of laser.
摘要翻译：要解决的问题：提供能够以简单的结构和更高精度进行处理的处理装置和处理方法。解决方案：处理装置包括照射头16和控制装置。照射头16包括激光枢轴部分35和光聚焦光学系统37.激光枢轴部分35包括第一棱镜51，第二棱镜52，第一旋转机构53和第二旋转机构54.控制装置至少基于工件的热影响层和匝数激光器来控制第一棱镜51和第二棱镜52之间的旋转速度和相位角差。

79. 发明专利

JP2014012288A Laser welding apparatus, and welding method thereof 有权
标题翻译：激光焊接设备及其焊接方法
公开(公告)号：JP2014012288A
公开(公告)日：2014-01-23
申请号：JP2012150572
申请日：2012-07-04
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： KAMO KAZUHIKO , OKUDA TAKEHISA , ISHIDE TAKASHI
IPC分类号： B23K26/21 , B23K26/00 , B23K26/04 , B23K26/082
摘要： PROBLEM TO BE SOLVED: To provide a tube laser welding apparatus that does not bring about spatter on internal side of a tube during laser welding despite a simpler structure, and a welding method thereof.SOLUTION: A laser welding apparatus includes: a laser irradiation unit 5 that is disposed on peripheral side of a tubular body and irradiates laser light 4 to a bonded surface 10 of the tubular body, and a laser light output adjustment unit 6 that adjusts an output of the laser light 4 to be irradiated from the laser irradiation unit 5. The output of the laser light 4 is adjusted by the laser light output adjustment unit 6 so that a keyhole 3 formed in tube thickness of the tubular body by the laser light 4 is bottomed in the tube thickness.
摘要翻译：要解决的问题：提供一种管激光焊接装置，尽管结构更简单，但在激光焊接中不会在管的内侧产生飞溅，并且其焊接方法。激光焊接装置包括：激光照射单元 5，其设置在管状体的周边，并将激光4照射到管状体的接合面10;激光输出调节部6，其对从激光照射而照射的激光4的输出进行调整通过激光输出调节单元6调节激光4的输出，使得通过激光4形成管状体的管厚度的键孔3以管的厚度为底。

80. 发明专利

JP2009030174A Apparatus for improving residual stress in piping 有权
标题翻译：改善管道残余应力的装置
公开(公告)号：JP2009030174A
公开(公告)日：2009-02-12
申请号：JP2008230180
申请日：2008-09-08
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： AKAHA TAKASHI , TSUBOTA SHUHO , NISHIKAWA KENJI , SUGIMOTO KENSHO , KUSHIMOTO SHOJI , ISHIDE TAKASHI , OTA TAKAHIRO
IPC分类号： C21D9/08 , B23K26/00 , B23K26/08 , B23K31/00 , B23K101/06 , B23K103/04 , C21D1/34 , C21D9/50
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for improving the residual stress in a piping, wherein the residual stress in the piping can be reduced (or removed) by heating the outer peripheral surface of the piping and the constitution of the apparatus is made comparatively compact and further, the outer peripheral surface of a bending pipe part can be heated. SOLUTION: This apparatus is provided with: a laser head part 43; a circulating direction moving means; an oscillating means; and an emitting direction adjusting means, and the oscillating means is a linear motor 46 and the emitting direction adjusting means is an inclination drive motor 45. A linear motor fixation part 46A arranged in parallel with a pipe axial direction and the movable part 46B of the linear motor moving in the pipe axial direction along the linear motor fixation part are provided to the laser head part. The laser head part is attached to the movable part of the linear motor via the inclination drive motor. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于改善管道中的残余应力的装置，其中可以通过加热管道的外周面和设备的构造来减少（或去除）管道中的残余应力制作得比较紧凑，而且可以加热弯管部的外周面。
解决方案：该设备具有：激光头部43; 循环方向移动装置; 振荡装置; 和发射方向调节装置，振荡装置是直线电动机46，发射方向调节装置是倾斜驱动电动机45.与管轴方向平行设置的线性电动机固定部46A和线性电动机沿线性电动机固定部沿管轴方向移动设置在激光头部。激光头部分通过倾斜驱动电机连接到线性电动机的可动部分。版权所有（C）2009，JPO＆INPIT

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