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1. 发明专利

JPH0659181A LASER LIGHT REFLECTING MIRROR DEVICE FOR LASER MACHINING DEVICE 失效
公开(公告)号：JPH0659181A
公开(公告)日：1994-03-04
申请号：JP20591092
申请日：1992-07-08
申请人： KAWASAKI HEAVY IND LTD
发明人： MATSUMOTO TOSHIFUMI , SHIMAZU YASUHIKO , AOKI YOSHIAKI , TANAKA SHIGEJI
IPC分类号： B23K26/06 , G02B7/198
摘要： PURPOSE:To independently adjust the axial position of a mirror holder which holds a laser light reflecting mirror and the angles on two axes crossing it at right angles. CONSTITUTION:A mirror unit 20 is supported on a movable member 10 through a swinging support mechanism 50 which freely swings in all directions and the movable member 10 is supported movably only in the direction of a Z axis 14 through a Z-axial guide mechanism 40; and a Z-axial position fine adjusting mechanism 60 finely adjust the Z-axial position of the movable member 10, a theta-axial angle fine adjusting mechanism 70 finely adjust the angle on a theta axis, and a phi-axial angle fine adjusting mechanism which is not shown in the figure finely adjusts the angle of a phi axis, crossing the theta axis at right angles, on the phi axis.

2. 发明专利

JPH05329674A METHOD FOR ADJUSTING OPTICAL AXIS AND DEVICE THEREFOR 失效
公开(公告)号：JPH05329674A
公开(公告)日：1993-12-14
申请号：JP16400092
申请日：1992-05-28
申请人： KAWASAKI HEAVY IND LTD
发明人： HIRAYAMA MASAAKI , UTANO MAKOTO , MATSUMOTO TOSHIFUMI , TANAKA HIDEYUKI
IPC分类号： B23K26/08 , B23K26/042 , G02B7/00 , B23K26/04
摘要： PURPOSE:To provide a method and device for adjusting an optical axis by which an optical axis may be adjusted after the completion of the assembly of an articulated laser beam machine. CONSTITUTION:The method is used for adjusting the optical axis of an articulated laser beam machine successively from a first joint to a last joint; a laser beam emitted from the laser output port of the last joint J5 is separated by a beam splitter 2; the separated laser beams are guided to a picture process control means 3 via detectors S1, S2 which have each a different optical path length mutually; the required quantity for operation of a mirror is calculated; and after that, in accordance with the calculated quantity, the mirrors provided in each joint are adjusted. Also, in order to complete functions, the beam splitter 2, detectors S1, S2 having the different optical path length mutually, and the picture process control means 3 are provided.

3. 发明专利

JPH0886976A HIGH OUTPUT LASER BEAM BRANCHING DEVICE AND CONVERGING DEVICE 失效
公开(公告)号：JPH0886976A
公开(公告)日：1996-04-02
申请号：JP22534394
申请日：1994-09-20
申请人： KAWASAKI HEAVY IND LTD
发明人： MATSUMOTO TOSHIFUMI , HAYAKAWA AKIRA , YASUDA KOZO
IPC分类号： G02B27/10 , G02B6/28
摘要： PURPOSE: To provide a high output laser beam branching device capable of safely and surely branching a light beam in a continuous variable branching ratio, and to provide a high output laser beam converging device safely and surely shaping a beam and adjusting output. CONSTITUTION: The high output laser beam branching device is constituted of a displacement control type variable beam splitter 16 branching the laser beam in the desired branching ratio, photodetectors 28 and 29 measuring the output of two laser beams branched by the beam splitter 16, and an imaging device 26 detecting the beam shape of two laser beams branched. Relation between the position of the beam splitter 16 and output signal from the photodetectors 28 and 29 is measured by a control circuit 30.

4. 发明专利

JPH01162587A LASER WELDING METHOD 失效
公开(公告)号：JPH01162587A
公开(公告)日：1989-06-27
申请号：JP32188487
申请日：1987-12-19
申请人： KAWASAKI HEAVY IND LTD
发明人： ATSUTA TOSHIO , YASUDA KOZO , MATSUMOTO TOSHIFUMI
IPC分类号： B23K26/21 , B23K26/064
摘要： PURPOSE:To lead a laser light to the groove bottom part side of the inside of a light leading path member by making incident the laser light of high energy density state reduced smaller by using a lens on the incident port of the light leading path member inserted between the relatively opposed welding faces of a welding member. CONSTITUTION:A light leading path member 5 is located at specified position approaching to the back plate 13 covering the space between welding faces 3, 4 by the lower end face thereof and the oscillation of a laser light is executed with feeding a shielding gas through a gas flow path 10. The laser light reduced smaller by being condensed by a lens 9 and of a high energy density state is led into a light leading path 6 through an incident port 7 and led to the outgoing port 8 side with performing multiple reflection on the inner face of the light leading path 6. Due to the light leading path 6 inner face being subjected to mirror working the energy density is slightly reduced compared to the incident port 7 in the outgoing port 8 but the energy density to the extent of melting the member of the groove bottom part side exists and the back plate 13 is outgone from the outgoing port 8, a filler wire 12 or metal powder is melted and the deposition of the groove bottom part side between welding faces 3, 4 is enabled.

5. 发明专利

JP2003334687A Method for laser welding 有权
标题翻译：激光焊接方法
公开(公告)号：JP2003334687A
公开(公告)日：2003-11-25
申请号：JP2002145095
申请日：2002-05-20
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： MATSUMOTO TOSHIFUMI , MURATA TAKAYUKI
IPC分类号： B23K26/14 , B23K26/00 , B23K26/20
摘要： PROBLEM TO BE SOLVED: To provide a method for laser welding which can easily improve the connecting strength of a welded part with large allowing ranges of the groove working accuracy of a welding joint and the illuminating positional accuracy of a laser beam. SOLUTION: In the method for laser welding for forming a molten part by illuminating the laser beam from a metal to a material to be welded, the pressure of a shielding gas for shielding the molten part is set at a pressure exceeding (an atmospheric pressure + 0.1 kg/cm 2 ) and less than (the atmospheric pressure + 0.3 kg/cm 2 ). Thus, a weld penetration section is formed in a substantially elliptical shape, and a weld penetration width at each position of a weld penetration depth direction is increased. Accordingly, the connecting strength can be improved, and the allowing ranges of the groove working accuracy of the welding joint and the illuminating position accuracy of the laser beam can be increased. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种激光焊接方法，其可以容易地提高焊接部的连接强度，同时允许焊接接头的槽加工精度的范围大，激光束的照明位置精度。解决方案：在通过将激光束从金属照射到待焊接材料来形成熔融部件的激光焊接方法中，用于屏蔽熔融部件的保护气体的压力被设定为超过（a 大气压+ 0.1kg / cm 2 / SP>）小于（大气压+ 0.3kg / cm 2 SP SP）。因此，焊接贯通部形成为大致椭圆形状，并且焊接贯通深度方向的各位置处的焊接贯通宽度增大。因此，可以提高连接强度，能够提高焊接接头的槽加工精度和激光束的照明位置精度的允许范围。版权所有（C）2004，JPO

6. 发明专利

JP2002096186A LAP WELDING DEVICE FOR THIN PLATE MATERIAL 失效
公开(公告)号：JP2002096186A
公开(公告)日：2002-04-02
申请号：JP2000282775
申请日：2000-09-19
申请人： KAWASAKI HEAVY IND LTD
发明人： MURATA TAKAYUKI , MATSUMOTO TOSHIFUMI , NISHIO MAMORU
IPC分类号： B23K26/00 , B23K26/02 , B23K26/082 , B23K26/21 , B23K26/08
摘要： PROBLEM TO BE SOLVED: To weld thin plate materials by ensuring reliable pressed condition when they are lapped and welded. SOLUTION: This device is provided with a laser head 6 which welds a welding part 8 wherein thin plate materials 7 are lapped by irradiating a laser beam from a laser beam emitting part 22, and a pressing mechanism 9 which has a pressing member 15 for pressing the weld line direction close to this welding part for predetermined length. A slide mechanism which slidably supports the laser head 6 in the weld line direction is provided in this pressing mechanism 9 while maintaining pressed condition of the thin plate materials 7 of the welding part 8 by the pressing member 15. Thus, the welding part 8 of the thin plate materials 7 which is pressed by the pressing member 15 can be welded by sliding the laser beam emitting part 22 without changing the pressed condition by the pressing member 15.

7. 发明专利

JPH10319329A HIGH OUTPUT LASER BEAM BRANCHING DEVICE 失效
公开(公告)号：JPH10319329A
公开(公告)日：1998-12-04
申请号：JP9355298
申请日：1998-04-06
申请人： KAWASAKI HEAVY IND LTD
发明人： MATSUMOTO TOSHIFUMI , HAYAKAWA AKIRA , YASUDA KOZO
IPC分类号： G02B26/08
摘要： PROBLEM TO BE SOLVED: To provide a high output laser beam branching device capable of safely and surely branching a light beam in continuous variable branching ratio. SOLUTION: This high output laser beam branching device is constituted of a mirror 4 for reflecting the laser beam LB, a scanner 40 for optionally controlling the reflecting direction of the laser beam LB by controlling the rotational angle of the mirror 4, a lens 1 and an optical fiber 2 which are plural light receiving windows for receiving the reflected laser beam LB1, and a scanning control circuit 40a for setting the time to receive the laser beam LB1 for every light receiving window by controlling the scanner 40.

8. 发明专利

JP2001191191A WORKING HEAD FOR LASER BEAM WELDING ROBOT 失效
公开(公告)号：JP2001191191A
公开(公告)日：2001-07-17
申请号：JP37479399
申请日：1999-12-28
申请人： KAWASAKI HEAVY IND LTD
发明人： SHIKODA SHIGEKAZU , KUBOTA TETSUYA , YAGI EIICHI , KOGA SHINJI , MATSUMOTO TOSHIFUMI , INUZUKA MASAYUKI , MURATA TAKAYUKI , NISHIO MAMORU
IPC分类号： B23K26/064 , B23K26/08 , B23K26/21 , B23K26/06
摘要： PROBLEM TO BE SOLVED: To provide a working head for laser beam welding having simple constitution capable of pressurizing a work with a constant load. SOLUTION: The base part 3 of the working head 1 is attached to the wrist 2 of an articulated robot. A moving body 4 is attached to the supporting plate 10 of the base part 3 so as to vertically and freely displace. A laser projector 5 and a pressurizing means 6 are attached to the moving body 4. A constant load spring means 7 attached to the lower end part of the supporting plate 10 is provided with a spiral spring 22, the tip end of the spiral spring 22 is attached to the moving body 4, and a constant spring load is exerted downward on the moving body 4. The pressurizing means 6 is provided with a roller 20. When welding work is performed copying the surface of works 13, 14 by the roller 20, although the moving body 4 is vertically moved, pressurizing spring force from the constant load spring means 7 is always constant.

9. 发明专利

JPH1085981A DEVICE FOR GUIDING LASER BEAM TO OPTICAL FIBER 失效
公开(公告)号：JPH1085981A
公开(公告)日：1998-04-07
申请号：JP25116497
申请日：1997-09-16
申请人： KAWASAKI HEAVY IND LTD
发明人： YASUDA KOZO , MATSUMOTO TOSHIFUMI , SAKURAI TAKASHI , HAYAKAWA AKIRA
IPC分类号： G02B6/42 , B23K26/064 , B23K26/067 , B23K26/08 , B23K26/06
摘要： PROBLEM TO BE SOLVED: To accurately guide a high output laser beam to the incident plane of an optical fiber. SOLUTION: A first protective means 7 is provided between a laser beam 50 and an optical fiber 10, with a condensing lens 9 arranged on the downstream side of the laser beam of a first opening 8. The first opening 8 prevents the laser beam from being incident erroneously on the supporting part of the lens 9 and damaging the part. The second opening of a second protective means 57 is arranged between the lens 9 and the optical fiber 10. The inner diameter d1 of the second opening is selected to be not more than the core diameter d2 of the optical fiber 10, preventing the laser beam from being incident on the optical fiber 10 in the part other than the core and damaging the part. The optical fiber 10 is inserted into the insert hole of a gas supporting means 72, and supported in a non-contact state with compressed air supplied from a number of nozzle holes, preventing the gas supporting means 72 from being damaged in the case of erroneous deviation of the laser beam position. The optical fiber 10 is positioned by a spring and a piezoelectric element.

10. 发明专利

JPH01162588A LASER WELDING METHOD 失效
公开(公告)号：JPH01162588A
公开(公告)日：1989-06-27
申请号：JP32188587
申请日：1987-12-19
申请人： KAWASAKI HEAVY IND LTD
发明人： ATSUTA TOSHIO , YASUDA KOZO , MATSUMOTO TOSHIFUMI
IPC分类号： B23K26/21
摘要： PURPOSE:To enable the welding of the groove bottom part side by a laser light by making the laser light reduced smaller by using a lens incident between the welding faces opposed each other of a welding member. CONSTITUTION:The laser light reduced smaller by a lens 5 and made incident between welding faces 3, 4 by staining a high energy density state proceeds to a groove bottom part side in a narrow gap shape, i.e., with repeating a multiple reflection by approached welding faces 3, 4. The laser light reaches a gap deep part by keeping a high energy density because the spread in the gap wall face direction of the laser focusing diameter like reducing the energy density is constrained. Now the build cladding by up welding of the groove bottom part is first enabled by feeding a filler wire or metal powder to the groove bottom part side, thereafter, the multilayer welding of narrow deposited metal zone can be executed for the narrow gap welding in an I type butt shape by moving to the gap upper part the feeding area of the filler wire or metal powder in order.

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