WO2019225514A1 - Dispositif de brasage - Google Patents

Dispositif de brasage Download PDF

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Publication number
WO2019225514A1
WO2019225514A1 PCT/JP2019/019769 JP2019019769W WO2019225514A1 WO 2019225514 A1 WO2019225514 A1 WO 2019225514A1 JP 2019019769 W JP2019019769 W JP 2019019769W WO 2019225514 A1 WO2019225514 A1 WO 2019225514A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
unit
brazing
brazing material
shape
Prior art date
Application number
PCT/JP2019/019769
Other languages
English (en)
Japanese (ja)
Inventor
照明 與語
秀行 田中
Original Assignee
株式会社オプトン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社オプトン filed Critical 株式会社オプトン
Publication of WO2019225514A1 publication Critical patent/WO2019225514A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/02—Soldering irons; Bits
    • B23K3/03—Soldering irons; Bits electrically heated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/04—Heating appliances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Definitions

  • This disclosure relates to a brazing apparatus.
  • a brazing device has been proposed that discriminates a shape change of a placed wax imaged and controls the heating means in response to the determined change (see, for example, Patent Document 1).
  • a change as illustrated in FIG. 2 or FIG. 4 of Patent Document 1 occurs in the shape of the outline of the placing wax (15) imaged by the imaging camera (30). Is determined by the control unit (33), and the control unit (33) controls the heating output by the burner (19) or the heating coil (36).
  • FIG. 1 or FIG. 5 of Patent Document 1 when the imaging camera is directed obliquely downward, even if the periphery of the place to be placed is imaged with the imaging camera, FIG. Or an image as illustrated in FIG. 4 cannot be obtained.
  • the image as illustrated in FIG. 2 or FIG. 4 of Patent Document 1 is an image obtained when the periphery of the placing place is imaged from a substantially horizontal direction, and is obtained by an imaging camera directed obliquely downward. It is not an image that can be captured.
  • the imaging camera When the imaging camera is directed obliquely downward, when the periphery of the placing object is imaged with the imaging camera, the outline of the placing wax appears to overlap with the upper end surface of the member to be joined (12). In this case, if the color of the placing wax is similar to the upper end surface of the member to be joined, it is difficult to clearly identify the outline of the placing wax, and there is a possibility that the melting timing of the placing wax cannot be detected properly.
  • the placing wax before melting appears to be a substantially elliptical ring shape, and the fillet formed after melting the placing wax Also looks like an approximately elliptical ring. In this case, there may be no great difference in the position of the contour line before and after the placing wax is melted. In this case, there is a possibility that the melting timing of the placing wax cannot be detected properly.
  • the above problems are problems that can be assumed when the imaging camera is directed obliquely downward. If the imaging camera can be disposed at a position where the periphery of the place to be placed can be imaged from a substantially horizontal direction. There is a possibility that it can be solved.
  • the base material becomes an obstacle, and the imaging camera is located at a position where the periphery of the placing braze can be imaged from a substantially horizontal direction. May be difficult to dispose of.
  • the detection unit is configured to detect that the shape of the brazing material has changed with the melting of the brazing material.
  • the control unit is configured to control the heating output by the heating unit, and after starting the heating by the heating unit, if the detection unit detects that the shape of the brazing material has changed, the heating output by the heating unit is reduced or stopped.
  • the brazing apparatus 1 includes a control device 3, a high-frequency induction heating device 5, a first sensor unit 7A, a second sensor unit 7B, a coil transfer robot 8, and a work transfer robot 9.
  • the high frequency induction heating device 5 includes a power supply device 11, a cooling device 13, and a heating coil 15.
  • the first sensor unit 7A and the second sensor unit 7B each include a laser line generator 17 and a CCD camera 19.
  • the CCD camera 19 is a measurement camera provided for measuring the melting state of the brazing material.
  • the CCD camera 19 is arranged toward a location that is a projection destination of the laser line generator 17.
  • the workpiece transfer robot 9 is constituted by a general-purpose 6-axis industrial robot, and holds the workpiece 21 with a hand portion provided at the tip of the movable portion, and a position where the workpiece 21 can be brazed from the carry-in source ( Hereinafter, it is also referred to as a brazing position, and the workpiece 21 can be moved from the brazing position to the carry-out destination.
  • the control device 3 instructs the coil transport robot 8 to move the heating coil 15.
  • the coil transfer robot 8 that has received a command from the control device 3 moves the heating coil 15 from the retracted position to the operating position. Thereby, the heating coil 15 and the workpiece
  • the first sensor unit 7A and the second sensor unit 7B are disposed at a position where the workpiece 21 conveyed to the brazing position can be imaged from an obliquely upper side of the brazing material 27.
  • the charge valve 25 and the brazing material 27 are arranged at the imaging positions (see FIG. 2) by the first sensor unit 7A and the second sensor unit 7B.
  • the first sensor unit 7A and the second sensor unit 7B project laser light from the laser line generator 17.
  • a laser line extending in a substantially vertical direction along the surfaces of the charge valve 25 and the brazing material 27 is projected onto the surfaces of the charge valve 25 and the brazing material 27 as shown in FIG.
  • the control device 3 instructs the high frequency induction heating device 5 to start heating.
  • the high frequency induction heating device 5 that has received a command from the control device 3 adjusts the output of the heating coil 15 to a high output (in the present embodiment, for example, about 80% of the maximum output) by the power supply device 11, and the workpiece 21. Start heating.
  • the output of the heating coil 15 is adjusted to about 80% of the maximum output as described above.
  • the first sensor unit 7A and the second sensor unit 7B detect the shape change of the laser line projected in the brazing contact detection area in units of 0.1 second, and monitor the molten state of the brazing material 27. When the surface shape of the brazing material 27 changes, the shape of the laser line changes.
  • the state where the output of the heating coil 15 is switched to the low output is held for 3 seconds, and then the output of the heating coil 15 is stopped. Since this holding time can vary depending on the shape, material, and the like of the work 21, what is the optimum holding time may be determined by trial for each work 21.
  • first sensor unit 7A and the second sensor unit 7B are based on a change in the shape of a laser line (corresponding to an example of a pattern) imaged by a CCD camera 19 (corresponding to an example of an imaging unit). It is detected that the shape of is changed.
  • the laser If the laser line projected from the line generator 17 (corresponding to an example of a light projecting unit) can be properly imaged by the CCD camera 19, it is possible to appropriately detect that the shape of the brazing material 27 has changed.
  • the output of the heating coil 15 may be reduced at the time when the shape change of the brazing material 27 is detected by any one of the sensor units, or the predetermined number or more of sensor units may be used. You may reduce the output of the heating coil 15 at the time of detecting the shape change of the material 27.
  • These controls may be selected according to the shape of the workpiece 21, the material of the workpiece 21 and the brazing material 27, and the like.
  • the aluminum base material (the aluminum pipe 23 and the aluminum charge valve 25) is exemplified as the base material to be soldered, but the material of the base material is also arbitrary. What is necessary is just to select the optimal material for the brazing material 27 according to the material of the base material. Further, the form of the brazing material 27 may be powder, paste, or the like.
  • the base material to be brazed is not limited to pipes and charge valves.
  • a plurality of dots may be projected, or a pattern having any other shape may be projected.
  • the pattern projected on the surface of the brazing material 27 was a pattern which does not move from a specific position, you may project the line which moves to a predetermined scanning direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention concerne un dispositif de brasage équipé d'une unité de chauffe configurée pour chauffer un matériau de brasage, d'une unité de détection configurée pour détecter un changement dans la forme du matériau de brasage qui accompagne la fusion du matériau de brasage, et d'une unité de commande configurée pour commander la production de chauffe par l'unité de chauffe. L'unité de détection comprend une unité de projection de lumière configurée pour projeter un motif prédéterminé sur la surface du matériau de brasage en projetant une lumière, et une unité d'imagerie constituée de manière à acquérir une image du motif. L'unité de détection est configurée pour détecter un changement dans la forme du matériau de brasage sur la base du changement dans la forme du motif dont l'image est acquise par l'unité d'imagerie.
PCT/JP2019/019769 2018-05-24 2019-05-17 Dispositif de brasage WO2019225514A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-099338 2018-05-24
JP2018099338A JP7266272B2 (ja) 2018-05-24 2018-05-24 ろう接装置

Publications (1)

Publication Number Publication Date
WO2019225514A1 true WO2019225514A1 (fr) 2019-11-28

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ID=68615756

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Application Number Title Priority Date Filing Date
PCT/JP2019/019769 WO2019225514A1 (fr) 2018-05-24 2019-05-17 Dispositif de brasage

Country Status (2)

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JP (1) JP7266272B2 (fr)
WO (1) WO2019225514A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116075399A (zh) 2020-09-14 2023-05-05 三菱电机株式会社 机器人控制装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137082A (en) * 1981-02-20 1982-08-24 Nippon Kokan Kk <Nkk> Measuring method for cross-sectional shape of weld zone
JPS6442409U (fr) * 1987-09-09 1989-03-14
JP2002263879A (ja) * 2001-03-08 2002-09-17 Daishin Kogyo Kenkyusho:Kk ろう付け方法及びろう付け装置
JP2011174855A (ja) * 2010-02-25 2011-09-08 Toyota Motor Corp ビード検査方法及びビード検査装置
JP2016045012A (ja) * 2014-08-20 2016-04-04 オムロン株式会社 品質管理装置および品質管理装置の制御方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08145637A (ja) * 1994-11-21 1996-06-07 Sharp Corp パイプ形状認識方法及びその装置
KR100200215B1 (ko) * 1996-04-08 1999-06-15 윤종용 상관 신경 회로망을 이용한 납땜 검사 장치 및방법
JP2000024777A (ja) 1998-07-14 2000-01-25 Hitachi Ltd 開先形状検出装置
JP2000088542A (ja) 1998-09-09 2000-03-31 Mitsubishi Heavy Ind Ltd はんだ付検査装置及び検査方法
JP6413246B2 (ja) 2014-01-29 2018-10-31 オムロン株式会社 品質管理装置および品質管理装置の制御方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137082A (en) * 1981-02-20 1982-08-24 Nippon Kokan Kk <Nkk> Measuring method for cross-sectional shape of weld zone
JPS6442409U (fr) * 1987-09-09 1989-03-14
JP2002263879A (ja) * 2001-03-08 2002-09-17 Daishin Kogyo Kenkyusho:Kk ろう付け方法及びろう付け装置
JP2011174855A (ja) * 2010-02-25 2011-09-08 Toyota Motor Corp ビード検査方法及びビード検査装置
JP2016045012A (ja) * 2014-08-20 2016-04-04 オムロン株式会社 品質管理装置および品質管理装置の制御方法

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JP7266272B2 (ja) 2023-04-28
JP2019202338A (ja) 2019-11-28

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