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11. 发明专利

JPH11156573A LASER PROCESSING HEAD 失效
公开(公告)号：JPH11156573A
公开(公告)日：1999-06-15
申请号：JP15902298
申请日：1998-06-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： ISHIDE TAKASHI , HASHIMOTO YOSHIO , NAGASHIMA TADASHI , WATANABE MASANARI , AKAHA TAKASHI , SHIMIZU KATSUSUKE
IPC分类号： B23K9/29 , B23K10/00 , B23K26/064 , B23K26/067 , B23K26/21 , B23K26/346 , B23K28/02 , B23K26/00 , B23K26/06
摘要： PROBLEM TO BE SOLVED: To carry out a good welding of even a complex shape such as a three-dimensional shape as well as to realize the welding with good efficiency without generating the loss of the ejected laser beam. SOLUTION: When a filler wire 7 and an optical axis of a laser beam 6 are coaxialized, the laser beam 6 is divided into two by combining two of a convex type roof mirror 2 and a concave type roof mirror 3, so as not to eject the laser beam 6 against a filler wire supply pipe 8. Furthermore, within an interval of the laser beam 6 and via a filler wire guide element from the outside of the laser beam, the filler wire 7 is supplied to the light condensing position and an electrode supported by a water conducting pipe or an electrode supporting pipe is moved closely to the light condensing position.

12. 发明专利

JPH08281459A PLURAL-STEP REFLECTING TYPE OUTGOING OPTICAL UNIT IN LASER BEAM WELDING APPARATUS 失效
公开(公告)号：JPH08281459A
公开(公告)日：1996-10-29
申请号：JP8241895
申请日：1995-04-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAHA TAKASHI , OGUCHI TSUTOMU , FUJIYOSHI KOJI , TOMITA MASANARU , FURUYA SHIGERU , ISHIDE TAKASHI , HASHIMOTO YOSHIO , SHIRATA HARUO
IPC分类号： B23K26/064 , B23K26/06 , B23K26/08
摘要： PURPOSE: To provide an apparatus which can weld in the whole posture while avoiding an obstruction, by refracting a laser beam outgoing from an optical fiber with plural mirrors step by step. CONSTITUTION: In a plural-step reflecting type outgoing optical unit in the laser beam welding apparatus applied to a butt welding for thin piping and a fillet welding for thin plate, a fiber fitting part 2 providing a fiber mechanism 5 fixing the optical fiber and an inclined mirror 11, a lens incorporating part 1 arranging various kinds of lens 7, 8, 9, 10 and a laser beam emitting part 3 arranging an inclined mirror 12 and a welding hole 13 are provided, and the position of the welding hole 13 is changable to vertical and right and left directions in the position.

13. 发明专利

JPH08276285A AUTOMOBILE BODY EXTERNAL PERIPHERAL BENDING PART ADHESION SYSTEM 失效
公开(公告)号：JPH08276285A
公开(公告)日：1996-10-22
申请号：JP9999395
申请日：1995-03-31
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAHA TAKASHI , HAMADA SHOICHI , ISHIDE TAKASHI , HASHIMOTO YOSHIO , FURUYA SHIGERU
IPC分类号： B62D65/00 , B21D19/08 , B21D39/02 , B23K26/21 , B23K26/00
摘要： PURPOSE: To solve the break away of adhesion face between a bending part of an outer panel of the external periphery of an automobile body and the inserting part of an inner panel, to execute the laser beam welding at the same time with bending, and to efficiently make the working process. CONSTITUTION: This is a system to adhere a bending part of an outer panel of the external periphery of an automobile body and the inserting part of an inner panel, plural numbers of laser beam welding equipments 5 are arranged along the adhering line in a proper interval inside a front jig curve blade 2 of a bending hem jig 1 of the automobile body external periphery, a rear jig curve blade 3 and a lower jig curve blade 4, and the laser beam emitting part of this laser beam welding equipments 5 is installed being able to be swung.

14. 发明专利

JPH04361889A METHOD AND DEVICE FOR MONITORING LASER WELDING 失效
公开(公告)号：JPH04361889A
公开(公告)日：1992-12-15
申请号：JP16089091
申请日：1991-06-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGURA YASUMI , HASHIMOTO YOSHIO , ISHIDE TAKASHI , NAGASHIMA TADASHI , KUWABARA MITSUO
IPC分类号： B23K26/00 , B23K26/02 , B23K26/03 , G01N21/84 , G01N21/88
摘要： PURPOSE:To accurately detect penetration depth and laser output in the course of laser welding by utilizing the light emission of a welding part. CONSTITUTION:The light of the welding part which is welded by a laser beam is transmitted through an optical fiber 5 for monitoring, the transmitted light is branched into three beams of light with each different wavelength range by reflection filters 13a, 13b, 13c, and each branched beam of light is inputted in detectors 6a, 6b, 6c through interference filters 14a, 14b, 14c. A light component emitted from a molten metal is made incident on the detectors 6a, 6b, and a light beam with a laser wavelength is made incident on the detector 6c. When the laser output is a base, the values of the detectors 6a, 6b are taken in to discriminate the penetration depth, and when the laser output is at a peak, the value of the detector 6c is taken in to discriminate the laser output.

15. 发明专利

JPS60174255A METALLIC SLEEVE JOINING METHOD 失效
公开(公告)号：JPS60174255A
公开(公告)日：1985-09-07
申请号：JP2870484
申请日：1984-02-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： SAKAMOTO SHIGEO , KAMEI HIROMASA , SAKAMOTO MICHITO , HASHIMOTO YOSHIO , NAGURA YASUMI
IPC分类号： B23K1/00 , B23K1/18 , B23K1/20
摘要： PURPOSE:To fix a heat transmission pipe and a metallic sleeve without causing leak by inserting a metallic sleeve having a fine particle-shaped welded layer on the outside surface, into a rejected part of a heat transmission pipe of a heat exchanger, expanding a pipe and adhering a metallic sleeve tightly, and executing brazing. CONSTITUTION:A metallic sleeve 2 is provided with a groove (a) for containing a brazing material, on its end part, and a fine particle-shaped thermal spraying layer (b) is provided by a thermal spraying from the lower end part of the groove (a) to the center side of the sleeve 2. The metallic sleeve 2 which has installed a brazing material 3 to the groove (a) is installed to a position covering a rejected part (c) of a heat transmission pipe 1 of a heat exchange pipe. Subsequently, a pipe is expanded by applying a pressure 4 to the thermal spraying part (b), and the inside surface of the pipe 1 and the outside surface of the metallic sleeve 2 are adhered tightly and held. Next, the brazing material 3 is heated so as to become higher by about 30-50 deg.C than a melting temperature by a heating device 5. In this way, the brazing material 3 is melted, flows in between particles of the fine particle-shaped thermal spray layer (b) by a capillary phenomenon, and uniform brazing can be executed.

16. 发明专利

JPS58218379A Automatic tig welding method 失效
标题翻译：自动TIG焊接方法
公开(公告)号：JPS58218379A
公开(公告)日：1983-12-19
申请号：JP9999082
申请日：1982-06-12
申请人： Mitsubishi Heavy Ind Ltd
发明人： KAMEI HIROMASA , MISHIMA TAKEKATSU , NISHIO SETSU , HASHIMOTO YOSHIO
IPC分类号： B23K9/127 , B23K9/032 , B23Q9/00 , B23Q35/10
CPC分类号： B23K9/032 , B23Q9/0014 , B23Q35/10
摘要： PURPOSE:To enable accurate copying of a weld line in seal welding superposed part at the tip of a short tube inserted into a large diameter tube, by specifying the shape of groove at the end of the short tube and support of a torch, and performing groove copying by change of arc voltage. CONSTITUTION:A short tube 2 is inserted into a large diameter steel tube 1, and the part (a) is seal welded. For thickness (t) of the tube 2, angle of 45-70 degrees is formed leaving a root l of several mm.. The W electrode 4 of a welding torch 3 is placed on the extension of the root l. Change of set height (m) of the torch 3 is prevented by a copying roll 6, and the torch 3 can be moved parallel to inner face of the tube 2 by rotating mechanisms 9, 10 through a connecting arm 8. The torch 3 is moved to X, Y axes by travelling trucks 13, 14 and to Z axis (right angles to the weld line) by a slide 11 controlled by arc voltage. Further, by rotating a motor 12 normally and reversely by arc voltage, it is possible to make it follow the groove face at all times.
摘要翻译：目的：通过指定短管末端的沟槽形状和手电筒的支撑，使插入大直径管的短管尖端的密封焊接叠合部分的焊缝能够准确复制，并执行通过电弧电压变化进行槽复制。构成：将短管2插入大直径钢管1中，并且（a）部分被密封焊接。对于管2的厚度（t），形成45-70度的角度，留下几毫米的根l。焊炬3的W电极4放置在根部l的延伸部上。通过复印辊6防止焊炬3的设定高度（m）的变化，并且通过旋转机构9,10通过连接臂8可以使炬3平行于管2的内表面移动。焊炬3为通过行驶卡车13,14移动到X轴，Y轴，并通过由电弧电压控制的滑块11移动到Z轴（与焊接线成直角）。此外，通过使电动机12通过电弧电压正反地旋转，可以始终使其跟随槽面。

17. 发明专利

JP2003181663A METHOD AND HEAD FOR COMPOSITE WELDING 审中-公开
公开(公告)号：JP2003181663A
公开(公告)日：2003-07-02
申请号：JP2001377249
申请日：2001-12-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： TSUBOTA SHUHO , ISHIDE TAKASHI , HASHIMOTO YOSHIO , SHIMOKUSU YOSHIAKI , FUKUMOTO SEIJI , WATANABE MASANARI , BEPPU SEIJI
IPC分类号： B23K9/16 , B23K26/046 , B23K26/064 , B23K26/14 , B23K26/21 , B23K26/346 , B23K26/00 , B23K26/04 , B23K26/08
摘要： PROBLEM TO BE SOLVED: To provide a method and head for composite welding of arc welding and laser welding in which an optical system of a focusing lens has a single construction and welding is carried out while varying focal length to various values. SOLUTION: In composite welding, an optical fiber 11 for laser beam welding is moved in a direction of the focal point of the optical axis of a laser beam 12 to vary the focal length of the laser beam 12, and, in response to a change in focal length of the laser beam 12, an arc 40 of arc welding is adjusted to the focal position of the laser beam 12. COPYRIGHT: (C)2003,JPO

18. 发明专利

JP2002307177A LASER BEAM MACHINING HEAD AND LASER BEAM MACHINING DEVICE FURNISHED WITH THE SAME 失效
公开(公告)号：JP2002307177A
公开(公告)日：2002-10-22
申请号：JP2001114837
申请日：2001-04-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： BEPPU SEIJI , ISHIDE TAKASHI , HASHIMOTO YOSHIO , TSUBOTA SHUHO , WATANABE MASANARI , KAMISHIRO KAZUHIRO
IPC分类号： B23K9/16 , B23K9/167 , B23K9/173 , B23K26/03 , B23K26/064 , B23K26/21 , B23K26/34 , B23K26/346 , B23K26/38 , B23K26/00 , B23K26/02 , B23K26/06
摘要： PROBLEM TO BE SOLVED: To provide a laser beam machining head which has a simple structure requiring no reflection mirror, is made compact, has a high beam condensing property and a long focal distance, and to which an arc electrode and cutting gas are easily supplied, and to provide a laser beam machining device furnished with the same. SOLUTION: The laser beam machining head 54 is furnished with a collimate optical system 62 which makes a laser beam parallel and a half-split lens 67, and all portion of the laser beam 52 emitted from the collimate optical system is made incident to the half-split lens by shifting the position of the optical axis of the half-split lens 67 with respect to the position of the optical axis of the collimate optical system in the direction perpendicular to these optical axes. the machining head is further furnished with a condenser optical system 63 which condenses the laser beam and irradiates a work 55 with the laser beam with a the half-split lens and such a machining means as MIG electrode 57 disposed along the optical axis of the half-split lens on the split face side 67c of the half-split lens. The laser beam machining device is composed by being furnished with the laser beam machining head.

19. 发明专利

JP2000202677A LASER BEAM MACHINING HEAD 失效
公开(公告)号：JP2000202677A
公开(公告)日：2000-07-25
申请号：JP363799
申请日：1999-01-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGURA YASUMI , NAYAMA RISUKE , ISHIDE TAKASHI , HASHIMOTO YOSHIO , OKIMURA KOJI
IPC分类号： B23K26/00 , B23K26/06 , B23K26/14 , B23K26/38
摘要： PROBLEM TO BE SOLVED: To send the whole assist gas to a machining part at high flow speed and to conduct laser beam machining with effectively using the whole laser beam. SOLUTION: The assist gas Q supplied into an assist gas nozzle 16 is ejected from the opening part 16a of a nozzle tip toward the cutting part 2a of an object 2 to be cut. At this time, the opening diameter D of the opening part 16a is made roughly equal to a cutting width (w) and is smaller than a conventional opening diameter. Thus, an assist gas ejection speed is accelerated as well as the whole assist gas Q is sent into the cutting part 2a. Because the opening diameter is narrowed, the diameter of the inner circumferential face of the assist gas nozzle 16a is narrowed down, the narrowed down inner circumferential face is served as a reflection face 16a. The laser beam made incidence on the reflection face 16a is reflected and irradiated/converged toward the object 2. Thus, the whole laser beam 3 is contributed to machining.

20. 发明专利

JPH11775A LASER CLADDING DEVICE 失效
公开(公告)号：JPH11775A
公开(公告)日：1999-01-06
申请号：JP15184997
申请日：1997-06-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： ISHIDE TAKASHI , TSUNATANI TOSHIHIKO , HASHIMOTO YOSHIO , NAKAJIMA SHIN
IPC分类号： B23K26/34 , B23K26/00
摘要： PROBLEM TO BE SOLVED: To stably feed the same quantity of powder no matter how the position of a laser irradiating part changes in a laser cladding device. SOLUTION: In the laser cladding device, power 17 of metal or high polymer material or ceramics, etc., is fed on a material 15, and a cladding layer is formed by heating and melting powder 17 with the laser beam 12. In this case, plural powder feeding tubes 16 of powder 17 fed on the material 15 are provided, the tip end part of the powder feeding tube 16 is connected to the turning and converging groove 19 of a holder 18, the feeding quantity of powder 17 from respective powder feeding tubes 16 is made to be the same quantity, and power 17 is fed on the material 15 after turning and converging.

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