WO2019025556A1 - Procédé pour la détection et l'identification de pièces assemblées l'une à l'autre par un procédé d'assemblage - Google Patents

Procédé pour la détection et l'identification de pièces assemblées l'une à l'autre par un procédé d'assemblage Download PDF

Info

Publication number
WO2019025556A1
WO2019025556A1 PCT/EP2018/071020 EP2018071020W WO2019025556A1 WO 2019025556 A1 WO2019025556 A1 WO 2019025556A1 EP 2018071020 W EP2018071020 W EP 2018071020W WO 2019025556 A1 WO2019025556 A1 WO 2019025556A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint connection
images
image
stored
individual pixels
Prior art date
Application number
PCT/EP2018/071020
Other languages
German (de)
English (en)
Inventor
Frank Riedel
Thomas Wiener
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of WO2019025556A1 publication Critical patent/WO2019025556A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • 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
    • B23K31/12—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 investigating the properties, e.g. the weldability, of materials
    • B23K31/125—Weld quality monitoring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined

Definitions

  • the invention relates to a method for detecting and identifying components that are joined together by a joining method.
  • Joining joints are the interface between the individual interconnected components of a product and often present a weak point in their properties compared to the individual component properties.
  • Joining joints will be used.
  • Welded joints are one of the most commonly used connection types for innumerable products worldwide (mobile [automotive, rail vehicle, ships, aerospace vehicles], engineering, chemical industry, bridge construction, steel construction, etc.). However, as they increase the respective base materials in the joining zones up to the melting temperature during the technological process. zen (also partially melted), the solidified weld in its properties often differs greatly from the welded base materials. As a rule, reduced properties are formed in a weld. In addition, there is a high frequency of occurring imperfections (pores, geometrical or metallurgical deviations) and also seam errors (cracks, binding defects) which further deteriorate the properties and in some cases make them unsuitable for the intended use.
  • Properties / information (including the history, such as process, repair, etc.) is provided by documentation relating to the final product or via geometric assignments of the joints.
  • joining compounds such as e.g. Welds directly physically marked what z.
  • punch numbers [steel, shipbuilding]
  • applied or applied coding systems [bar code, DataMatrix code, Q.R code] u. a. can be reached.
  • an image of at least one area of the surface of a joint connection with a device designed for this purpose is optically detected and the individual pixels of the captured image are then digitized and assigned to a data field of an electronic database and stored.
  • the respective data field is assigned to at least one identification code for the respectively joined components or the respective joint connection.
  • an image of the previously optically detected region of the surface of the respective joint connection with a device for optically detecting images is detected again.
  • the individual pixels are then digitized and in an electronic evaluation device, a comparison is made with previously recorded in data fields of the database and stored images of surfaces of joints. With a match of at least 75% of pixels, preferably of at least 80% with a stored image, the identity of two mappings is determined.
  • the individual pixels of the images should be spatially and spectrally resolved or recorded by means of gray values and stored in each case in a data field.
  • the respective captured images should be so large that a subsequent identification is readily possible.
  • the required size of figurative fertilizing may depend on the surface structure of the joint. However, it should be at least 2 mm 2 .
  • surface areas should be chosen for the detection of images that are typical of the type of joint and / or the components to be joined together. This can be, for example, areas of a joint connection in which a change of direction occurs or intersect joint connections.
  • a joint connection or correspondingly joined components can be identified even after a long time and use without additional measures for individual identification.
  • Screw reached by bending or crimping joint connection detected, assigned, compared and / or stored.
  • an image should at least take into account the respective entire head of a rivet or screw.
  • a video, a CCD, a CMOS, a 3D camera or a laser scanner can be used as a device for detecting and digitizing the individual pixels of an image of at least one area of the surface of the respective joint connection.
  • a video, a CCD, a CMOS, a 3D camera or a laser scanner can be used as a device for detecting and digitizing the individual pixels of an image of at least one area of the surface of the respective joint connection.
  • a CCD, a CMOS, a 3D camera or a laser scanner can be used as a device for detecting and digitizing the individual pixels of an image of at least one area of the surface of the respective joint connection.
  • Each joint, in particular welds have an individual surface structure which, with sufficient resolution of detected images, precludes redundant presence.
  • the method is subdivided into a registration / registration and an identification step:
  • the acquisition / registration step relates to the acquisition and storage of a new surface area in a database and is based on the digitization of a defined section of an at least partially structured surface by an optical scanning process. Furthermore, a one-to-one identification code is generated on the basis of the digital image, which serves as identification of a product / the component / the weld seam / the joint connection. Information about the product / part / weld / joint can be stored in the database under this identification code.
  • An identification step serves to identify a product / part / weld / joint that has already been captured and registered. For this purpose, another scan of a section of the respective surfaces is required. In the identification step, this section is compared with all the digital images contained in the database. If a match is found in the database, it can be assigned to the identification code in the database. For this purpose, information stored in other data fields can be retrieved.
  • positions and dimensions of the surface areas to be optically detected should be defined.
  • the surface areas should be in the identification step except for small Tolerances match the surface areas in the registration step.
  • the invention represents an important component for the 100% documentation of joint connections for a respective product and thus an important component for the quality management of products. For inspections or even in case of damage, the unique assignment of specific information can be made.
  • the invention requires no additional expenses / costs for today's usual identification of joints (marking of compounds). It is transferable to all joints and is durable over the entire service life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un procédé pour la détection et l'identification de pièces assemblées l'une à l'autre par un procédé d'assemblage, dans lequel une représentation d'au moins une zone de la surface d'une liaison d'assemblage est détectée optiquement à l'aide d'un dispositif conçu à cet effet et les différents points d'image de la représentation détectée sont numérisés et associés à un champ de données d'une base de données électronique et enregistrés. Au moins un code d'identification pour les pièces à chaque fois assemblées ou pour la liaison d'assemblage respective est associé au champ de données respectif. À un moment ultérieur, on détecte de nouveau une représentation de la zone détectée optiquement au préalable de la surface de la liaison d'assemblage respective à l'aide d'un dispositif pour la détection optique de représentations et les différents points d'image sont numérisés. Dans un dispositif d'évaluation électronique, on effectue une comparaison avec des représentations de surfaces de liaison d'assemblage détectées et enregistrées préalablement dans des champs de données de la base de données, l'identité de deux représentations étant constatée lors d'une correspondance d'au moins 75 % des points d'image avec une représentation enregistrée.
PCT/EP2018/071020 2017-08-04 2018-08-02 Procédé pour la détection et l'identification de pièces assemblées l'une à l'autre par un procédé d'assemblage WO2019025556A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017213558.1A DE102017213558A1 (de) 2017-08-04 2017-08-04 Verfahren zur Erfassung und Identifikation von miteinander mit einem Fügeverfahren verbundenen Bauteilen
DE102017213558.1 2017-08-04

Publications (1)

Publication Number Publication Date
WO2019025556A1 true WO2019025556A1 (fr) 2019-02-07

Family

ID=63174208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/071020 WO2019025556A1 (fr) 2017-08-04 2018-08-02 Procédé pour la détection et l'identification de pièces assemblées l'une à l'autre par un procédé d'assemblage

Country Status (2)

Country Link
DE (1) DE102017213558A1 (fr)
WO (1) WO2019025556A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112232295A (zh) * 2020-11-09 2021-01-15 珠海大横琴科技发展有限公司 一种新增目标船只的确认方法、装置及电子设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022118911A1 (de) 2022-07-28 2024-02-08 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Dokumentation zumindest einer Fügeverbindung an einer Fügestelle sowie Datenverarbeitungsvorrichtung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109701A1 (de) * 1981-03-13 1982-09-23 Mühlenfeld, Eike, Prof. Dr.-Ing., 3392 Clausthal-Zellerfeld Verfahren zur bildauswertung mit optoelektronischer vorverarbeitung
US5111126A (en) * 1990-08-27 1992-05-05 Applied Research, Inc. Stereo optical guidance system for control of industrial robots
US5264678A (en) * 1991-09-26 1993-11-23 Applied Research, Inc. Weld-bead profilometer
US5302799A (en) * 1991-12-09 1994-04-12 Applied Research, Inc. Weld analysis and control system
US6583386B1 (en) * 2000-12-14 2003-06-24 Impact Engineering, Inc. Method and system for weld monitoring and tracking
JP2006088160A (ja) * 2004-09-21 2006-04-06 Toyota Auto Body Co Ltd 溶接位置検査装置および溶接位置検査プログラム
US20110054806A1 (en) * 2009-06-05 2011-03-03 Jentek Sensors, Inc. Component Adaptive Life Management
US20120298640A1 (en) * 2009-07-08 2012-11-29 Edison Welding Institute, Inc. System for characterizing manual welding operations
US8642923B2 (en) * 2006-09-15 2014-02-04 Lincoln Global, Inc. Weld data acquisition
EP3176537A1 (fr) * 2015-12-01 2017-06-07 General Electric Company Système d'inspection automatisée de soudures en cours de production

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004001595A1 (de) * 2004-01-09 2005-08-11 Vodafone Holding Gmbh Verfahren zur informativen Beschreibung von Bildobjekten
TR201613058A2 (tr) * 2015-10-07 2017-04-21 Ford Global Tech Llc Bi̇r otomati̇k üreti̇m hatti i̇çi̇n görüntüleme si̇stemi̇

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109701A1 (de) * 1981-03-13 1982-09-23 Mühlenfeld, Eike, Prof. Dr.-Ing., 3392 Clausthal-Zellerfeld Verfahren zur bildauswertung mit optoelektronischer vorverarbeitung
US5111126A (en) * 1990-08-27 1992-05-05 Applied Research, Inc. Stereo optical guidance system for control of industrial robots
US5264678A (en) * 1991-09-26 1993-11-23 Applied Research, Inc. Weld-bead profilometer
US5302799A (en) * 1991-12-09 1994-04-12 Applied Research, Inc. Weld analysis and control system
US6583386B1 (en) * 2000-12-14 2003-06-24 Impact Engineering, Inc. Method and system for weld monitoring and tracking
JP2006088160A (ja) * 2004-09-21 2006-04-06 Toyota Auto Body Co Ltd 溶接位置検査装置および溶接位置検査プログラム
US8642923B2 (en) * 2006-09-15 2014-02-04 Lincoln Global, Inc. Weld data acquisition
US20110054806A1 (en) * 2009-06-05 2011-03-03 Jentek Sensors, Inc. Component Adaptive Life Management
US20120298640A1 (en) * 2009-07-08 2012-11-29 Edison Welding Institute, Inc. System for characterizing manual welding operations
EP3176537A1 (fr) * 2015-12-01 2017-06-07 General Electric Company Système d'inspection automatisée de soudures en cours de production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112232295A (zh) * 2020-11-09 2021-01-15 珠海大横琴科技发展有限公司 一种新增目标船只的确认方法、装置及电子设备

Also Published As

Publication number Publication date
DE102017213558A1 (de) 2019-02-07

Similar Documents

Publication Publication Date Title
WO2019025556A1 (fr) Procédé pour la détection et l'identification de pièces assemblées l'une à l'autre par un procédé d'assemblage
WO2021121808A1 (fr) Procédé et dispositif d'étalonnage d'au moins un capteur
DE102015118874A1 (de) Verfahren zum Betreiben eines Sensorsystems eines Kraftfahrzeugs, Fahrerassistenzsystem und System zum Kalibrieren eines Sensorsystems eines Kraftfahrzeugs
DE102009043215A1 (de) Verfahren und Anordnung zur Kontrolle von Stromabnehmern, Lichtraumprofilen und horizontaler und vertikaler Fahrdrahtposition an Fahrzeugverbänden
EP3770547A1 (fr) Dispositif d'analyse de pierre et procédé d'évaluation de pierres
EP3750842A1 (fr) Chargement d'une charge à l'aide d'un système de grue
DE19731638A1 (de) Neuartiges Verfahren zur Herstellung punktförmiger Schweißverbindungen mittels eines Reibbolzens
EP2586542B1 (fr) Procédé de fixation d'un connecteur à fiche dans l'extrémité d'un conduit
DE102011102010A1 (de) Verfahren zur Ermittlung der Qualität einer Schweißnaht
DE102019208448A1 (de) Verfahren zur Überprüfung eines Geräts oder einer Maschine
DE10125782B4 (de) Verfahren zur automatisierten Ultraschallprüfung von Widerstandspunktschweißverbindungen
DE202015005230U1 (de) Schienenfahrzeug
DE102022000729A1 (de) Verfahren zur Kalibrierung einer Kamera eines Fahrzeugs
DE10019486A1 (de) Anordnung zur Inspektion von Objektoberflächen
EP2986934B1 (fr) Procédé de vérification
EP3904867B9 (fr) Procédé et dispositif de détermination de la zone de rupture d'un échantillon
DE102021206827A1 (de) Verfahren und Anordnung zur Überwachung eines Rad-Schiene-Kontakts bei einem Schienenfahrzeug
EP3899781B1 (fr) Procédé d'assemblage d'un ensemble de composants ainsi qu'installation correspondant
DE19745728A1 (de) Verfahren zur optischen Kontrolle eines mechanischen Befestigungselements
WO2020083617A1 (fr) Procédé de contrôle d'un joint d'étanchéité
DE102019220326A1 (de) Verfahren zur Herstellung eines Hydraulikgehäuses, Hydraulikgehäuse
WO2020043362A1 (fr) Système et procédé d'assistance d'un usinage de surfaces
DE102023000312B3 (de) Verfahren zum Bedrucken und zur Fertigung von Interieurbauteilen eines Kraftwagens sowie Druckvorrichtung mit einer gekoppelten elektronischen Recheneinrichtung und einer optischen Erfassungseinrichtung
DE102018113880A1 (de) Verfahren zum Betreiben einer Presse
WO2019057371A1 (fr) Procédé, dispositif et programme d'ordinateur pour déterminer des états d'occupation de places de stationnement ainsi que pour identifier un véhicule automobile garé sur une place de stationnement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18753344

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18753344

Country of ref document: EP

Kind code of ref document: A1