WO2014026297A1 - Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé - Google Patents

Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé Download PDF

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Publication number
WO2014026297A1
WO2014026297A1 PCT/CH2012/000190 CH2012000190W WO2014026297A1 WO 2014026297 A1 WO2014026297 A1 WO 2014026297A1 CH 2012000190 W CH2012000190 W CH 2012000190W WO 2014026297 A1 WO2014026297 A1 WO 2014026297A1
Authority
WO
WIPO (PCT)
Prior art keywords
boards
gap
image
welding
light
Prior art date
Application number
PCT/CH2012/000190
Other languages
German (de)
English (en)
Inventor
Daniel STÄUBLI
Jean-Frédéric Clerc
Andri Janett
Christoph MÖSCHINGER
Original Assignee
Soutec Ag
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 Soutec Ag filed Critical Soutec Ag
Priority to PCT/CH2012/000190 priority Critical patent/WO2014026297A1/fr
Publication of WO2014026297A1 publication Critical patent/WO2014026297A1/fr

Links

Classifications

    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means

Definitions

  • the present invention relates to a method for
  • the preamble of claim 1 in particular a method for monitoring the gap width of two boards to be positioned close to each other and an application of the
  • the boards are in pairs, usually without edge preparation pushed together in stub layer and fixed by a clamping device, with a
  • the boards can be further treated to reduce the butt joint to an acceptable level, as for example in the patent EPO 0 565 846
  • Patent EP 0 450 349 A1 discloses an expensive process, however, which by means of cooling in the region of the weld immediately behind the welding focus
  • Device includes a rotating tool, preferably a grinding tool or a milling cutter to accomplish the desired chamfer of the welding edge.
  • the present invention is therefore the task
  • the invention presented here allows the simple and cost-effective industrial production of welded blanks in a manual or automated process, which does not have the disadvantages described above.
  • two blanks are pushed against each other on the longitudinal seam. Subsequently, by means of a strong
  • Projection surface projected wherein the light beam in the board plane has a diameter of about 1 mm.
  • On the projection surface of the plate gap is shown on a surface with a diameter of about 30 mm.
  • a gap of 0.1 mm is shown to an operator as a light strip of about 3 mm.
  • Fig. 1 shows an inventive arrangement for positioning two boards in a part of a
  • Fig. 2 shows a further inventive arrangement for
  • Fig. 3 shows a first arrangement of a board positioning system with two non-positioned boards for a
  • FIG. 4 shows a second arrangement of a board positioning system with two non-positioned boards for a
  • Fig. 5 is a further schematic representation of the second
  • Fig. 6 is a still further schematic representation of the second arrangement of a board positioning system with two positioned boards for a method according to the invention in a schematic representation and
  • Fig. 7 shows a still further arrangement of a board positioning system with two positioned Blanks for a process according to the invention in a schematic representation.
  • Fig. 1 shows a schematic representation of a part of a welding system 10, which may be so constructed, but does not have to be exclusive. In Fig. 1, only the essential parts relating to this invention are shown.
  • the two boards 1,2 are placed in the insertion direction 3,4 on a receiving table 15 either manually or by a robot, wherein the two boards are separated by the gap 20.
  • the width B of the gap 20 is monitored. If the width B between the two boards has reached a maximum allowable for the welding process, either the two boards to a stationary welding station, not shown, out
  • Welding station will be welded along the
  • FIG. 2 again shows a schematic representation of a
  • the two boards 1,2 are manually placed manually by the at least one operator 11,14 on the receiving table 15, wherein the at least one operator 11,14 from the workstation 9 by means of the position monitoring unit 5 the distance B of the two Board 1.2 on the translucent projection surfaces 13,13 'by visual inspection 12,12 ⁇ optically monitor.
  • Fig. 3 shows in a first arrangement a
  • Fig. 4 shows in a second arrangement a
  • a laser source emits a light beam
  • PCB 1.2 in the region of the wide gap 20 penetrates and as a projection image 1.1 two in the form in
  • Fig. 5 shows in a second arrangement a
  • Position monitoring unit 5 with a positioned board 1 and a non-positioned board 2.
  • the light source 18, preferably a laser source emits a light beam 17 which is focused in the lens 19 and the two boards 1 2 in the area from the wide gap 20 penetrates and as a projection image 8.7 ⁇ one in the form substantially semi-oval light pattern 27 'and a strip-shaped light pattern 25 on the two
  • Fig. 6 shows in a second arrangement a
  • Fig. 7 shows in a still further arrangement a
  • Position monitoring unit 5 with two positioned
  • the light source 18 preferably a laser source, emits a light beam 17 which is focused in the lens 19 and the two positioned along the sheet edge
  • Projection surface 16 generates a projection image 6, which corresponds to the shape of an elliptical light pattern 28 and the downstream available as optional diffuser 23rd changed and detected by a photodiode 22.
  • the information detected by the brightness sensor 21 is interpreted as an image of the narrow gap 20 and is transmitted to an evaluation unit 30 for evaluating the board position and also for determining the gap profile.
  • this information can also be used to influence the welding process, for example, to control the amount of additional wire needed or to position the laser correctly over the gap.
  • inventive method does not necessarily require a brightness sensor 21 but rather also another sensor can be used.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La présente invention concerne un procédé qui peut être employé notamment, mais pas exclusivement, lors du soudage de flans raboutés pour l'industrie automobile, pour projeter sur une surface de projection une image représentant un espace formé au niveau du cordon longitudinal de deux largets poussés l'un contre l'autre de manière très rapprochée, au moyen d'une source de lumière. Sur la surface de projection, l'espace apparaît agrandi et un espace plus étroit est signalé à l'opérateur sous la forme de bandes lumineuses. L'emploi d'une surface de projection translucide permet d'augmenter davantage le rapport de représentation.
PCT/CH2012/000190 2012-08-15 2012-08-15 Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé WO2014026297A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CH2012/000190 WO2014026297A1 (fr) 2012-08-15 2012-08-15 Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2012/000190 WO2014026297A1 (fr) 2012-08-15 2012-08-15 Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé

Publications (1)

Publication Number Publication Date
WO2014026297A1 true WO2014026297A1 (fr) 2014-02-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2012/000190 WO2014026297A1 (fr) 2012-08-15 2012-08-15 Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé

Country Status (1)

Country Link
WO (1) WO2014026297A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016010508A1 (de) 2016-08-26 2018-03-01 Lessmüller Lasertechnik GmbH Vorrichtung, Bearbeitungsvorrichtung und Verfahren zum Durchführen eines Bearbeitungsprozesses mittels eines hochenergetischen Bearbeitungsstrahls unter Anpassung des Bearbeitstrahls nach Maßgabe einer aktuellen Bearbeitungssituation
CN113770522A (zh) * 2021-07-06 2021-12-10 中国船舶重工集团公司第七二五研究所 一种钛合金厚板预填丝激光超窄间隙焊接方法
AT523923A4 (de) * 2020-10-01 2022-01-15 Andritz Soutec Ag Verfahren zum verschweissen von blechteilen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723611A1 (de) 1987-07-17 1989-01-26 Thyssen Stahl Ag Vorrichtung zum kontinuierlichen verschweissen von baendern und/oder blechen
US5045668A (en) * 1990-04-12 1991-09-03 Armco Inc. Apparatus and method for automatically aligning a welding device for butt welding workpieces
EP0450349A1 (fr) 1990-03-29 1991-10-09 Thyssen Stahl Aktiengesellschaft Procédé et dispositif pour souder en continu des bandes guidées bout-à-bout au moyen d'un faisceau laser
EP0565846A1 (fr) 1992-04-12 1993-10-20 Elpatronic Ag Procédé et dispositif pour le soudage de tôles métalliques
DE19603894A1 (de) 1996-02-03 1997-08-07 Thyssen Industrie Verfahren zur Schweißkantenvorbereitung für das Laserschweißen von Blechen
US20050041852A1 (en) * 2001-11-15 2005-02-24 Joachim Schwarz Method and device for evaluation of jointing regions on workpieces
DE102008047140A1 (de) 2008-09-12 2010-03-25 Falldorf Sensor Gmbh Vorrichtung zur Regelung der Nahtlage beim Laserschweißen von Stumpfstößen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723611A1 (de) 1987-07-17 1989-01-26 Thyssen Stahl Ag Vorrichtung zum kontinuierlichen verschweissen von baendern und/oder blechen
EP0450349A1 (fr) 1990-03-29 1991-10-09 Thyssen Stahl Aktiengesellschaft Procédé et dispositif pour souder en continu des bandes guidées bout-à-bout au moyen d'un faisceau laser
US5045668A (en) * 1990-04-12 1991-09-03 Armco Inc. Apparatus and method for automatically aligning a welding device for butt welding workpieces
EP0565846A1 (fr) 1992-04-12 1993-10-20 Elpatronic Ag Procédé et dispositif pour le soudage de tôles métalliques
DE19603894A1 (de) 1996-02-03 1997-08-07 Thyssen Industrie Verfahren zur Schweißkantenvorbereitung für das Laserschweißen von Blechen
US20050041852A1 (en) * 2001-11-15 2005-02-24 Joachim Schwarz Method and device for evaluation of jointing regions on workpieces
DE102008047140A1 (de) 2008-09-12 2010-03-25 Falldorf Sensor Gmbh Vorrichtung zur Regelung der Nahtlage beim Laserschweißen von Stumpfstößen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016010508A1 (de) 2016-08-26 2018-03-01 Lessmüller Lasertechnik GmbH Vorrichtung, Bearbeitungsvorrichtung und Verfahren zum Durchführen eines Bearbeitungsprozesses mittels eines hochenergetischen Bearbeitungsstrahls unter Anpassung des Bearbeitstrahls nach Maßgabe einer aktuellen Bearbeitungssituation
AT523923A4 (de) * 2020-10-01 2022-01-15 Andritz Soutec Ag Verfahren zum verschweissen von blechteilen
AT523923B1 (de) * 2020-10-01 2022-01-15 Andritz Soutec Ag Verfahren zum verschweissen von blechteilen
WO2022069105A1 (fr) * 2020-10-01 2022-04-07 Andritz Soutec Ag Procédé de soudage de pièces métalliques
CN113770522A (zh) * 2021-07-06 2021-12-10 中国船舶重工集团公司第七二五研究所 一种钛合金厚板预填丝激光超窄间隙焊接方法

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