EP2288537A1 - Procédé pour optimiser un cycle de vie de données de mesure sur la base de la rétroaction lors de processus d'assemblage au cours de la fabrication - Google Patents

Procédé pour optimiser un cycle de vie de données de mesure sur la base de la rétroaction lors de processus d'assemblage au cours de la fabrication

Info

Publication number
EP2288537A1
EP2288537A1 EP10716314A EP10716314A EP2288537A1 EP 2288537 A1 EP2288537 A1 EP 2288537A1 EP 10716314 A EP10716314 A EP 10716314A EP 10716314 A EP10716314 A EP 10716314A EP 2288537 A1 EP2288537 A1 EP 2288537A1
Authority
EP
European Patent Office
Prior art keywords
production
method step
manufacturing
test
data
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10716314A
Other languages
German (de)
English (en)
Inventor
Henning Schriever
Erdal Karaca
Tanja Klostermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Operations GmbH
Original Assignee
Airbus Operations GmbH
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 Airbus Operations GmbH filed Critical Airbus Operations GmbH
Publication of EP2288537A1 publication Critical patent/EP2288537A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Definitions

  • the invention relates to a method for the feedback-based optimization of a measured data life cycle in joining processes in manufacturing, in particular in the manufacture of aircraft and in general mechanical engineering.
  • the invention relates to a device for carrying out the method according to the invention.
  • such building sites are generally designed only as "isolated solutions", that is, the processes taking place in a building site take place independently of the processes in further upstream or downstream production stages.
  • this approach has the disadvantage that results resulting, for example, from the measurement of components can not be efficiently integrated into the upstream or downstream production processes.
  • error-prone manual and / or redundant interventions in the running in the construction sites manufacturing steps are necessary, whereby the assembly cost is significantly increased and the productivity and quality are affected.
  • interface problems between the individual building sites lead to information losses, which often require time-consuming re-entry of data already incurred in an upstream or downstream building site.
  • the lack of globally networked and media-break-free data management according to the prior art also means that no current information about the respective production status can be retrieved locally and, for example, tolerance overruns during the production sequence can not be identified and eliminated. Apart from this, there is no automated forwarding and further processing of measurement data in existing construction sites, including consideration of determined measurement data from previous measurement cycles, so that a gradual improvement of the manufacturing quality between the components to be joined in the section construction is made more difficult.
  • the object of the invention is to avoid the above-mentioned disadvantages of the known manufacturing processes and the joining process in the production before the start of production of the components by statistically based analysis and simulation, consistency check, a targeted alignment and alignment of components with subsequent target actual To optimize comparison, evaluation and result feedback in the subsequent process cycle.
  • the joining processes in production can be successively improved via the feedback mechanism, shorten production times and, as a result, reduce the production costs.
  • the method as a result allows a successive minimization of, in particular, tolerance deviations in joining processes over the entire service life cycle of the measured values.
  • the transparency of complex, possibly globally distributed, production processes in the production of components is improved and, at the same time, global control of the respective production status is opened at all times.
  • the production costs are minimized at the same time.
  • the production data include, among other things, test features, measured variables, tolerances and alignment parameters.
  • a further advantageous embodiment of the method provides that in a method step 5a), a measurement of the subassemblies and a storage of metrological parameters obtained therefrom takes place.
  • a device having the following features according to claim 16 a) at least one construction site, b) at least one positioning device for aligning the at least two
  • Sub-assemblies c) at least one joining device for joining the at least two subassemblies, d) at least one control and / or regulating device for controlling the at least one positioning device and / or the at least one joining device as a function of the method results, and e) at least one the at least one control and / or regulating device superordinate computer unit with at least one processor, at least one data memory and at least one central memory.
  • a construction site for carrying out the method has at least one positioning device for aligning the at least two subassemblies and at least one joining device for joining the subassemblies.
  • measuring devices such as laser trackers and / or photogrammetric measuring devices for automated measurement of the subassemblies to be joined together are provided.
  • a measurement of the subassemblies takes place in method step 5a).
  • manually operated measuring devices can be provided in the construction site. All positioning devices, joining devices and the measuring devices are preferably controlled by at least one control and / or regulating device and operated fully automatically, wherein the control and / or regulating devices are controlled by the at least one higher-level computer unit.
  • the higher-level computer unit is also responsible for the control of the process sequence according to the invention.
  • the computer unit also contains at least one data memory and at least one central memory, which can be called up decentralized and, if necessary, also globally by each process user for controlling the production flow.
  • the at least one data memory and the at least one central memory can be organized, for example in the form of a database, in such a way that a decentralized retrieval of the information contained therein is possible by specifying various search criteria.
  • the superordinate computer unit can be formed with a central computer unit having at least one processor and / or by an interconnection of a plurality of less powerful central and / or decentralized computer units, which are interconnected via suitable information transmission channels.
  • the current manufacturing status of each of sub-assemblies to be joined together component locally and / or globally visualize and control.
  • large-size subassemblies can be integrated in the construction site into finished components with the highest quality standards.
  • Any inaccuracies recorded in the alignment and joining process which can be caused for example by mass-caused deformations of the positioning devices and / or the subassemblies themselves, can be recognized by means of the method and can be compensated with lasting effect for later component generations.
  • FIG. 3.4 shows two examples of a valuation carried out in method step 5d).
  • Fig. 5 is a schematic representation of a construction site in which the process steps 5a-f) proceed.
  • a component design and a positioner design are created by means of known CAD systems.
  • the component design includes, for example, geometry data of the subassemblies to be joined together to form a component
  • the positioner design comprises, among other things, geometric data of the positioning devices used for the joining process in a building site. Accordingly, geometry data can also be fed from existing in the construction site joining devices.
  • the resulting design specification is stored in a data store.
  • the actual method starts in method step 1) with the analysis and the simulation of the production based on assumptions based on the design specification generated in method step 0), from which test characteristics, measured variables, tolerances and alignment parameters are derived, for example, those to be joined together Subassemblies that may relate to positioning devices in the construction site and the joining devices in the building site.
  • the analysis and simulation of the variables mentioned can be carried out by suitable statistical methods, such as, for example, the so-called "Monte Carlo" method.
  • the test features, measured variables, tolerances and alignment parameters resulting from method step 1) are stored in an unspecified memory step as an initial manufacturing and test concept in a data memory of a superordinate computer unit.
  • the issuing and / or adaptation of a production and / or inspection order is derived from the initial production and / or inspection concept.
  • the issued and / or the adapted manufacturing and / or test job is stored, for example, in a memory step in a central memory of the higher-level computer unit.
  • the manufacturing and / or test order resulting from method step 2) after being stored in a central memory of the computer unit is subjected to a consistency check, that is to a plausibility check. If the consistency of the production and / or inspection order is not given, the process sequence is returned to method step 2) in a consistency query until the desired consistency is given.
  • the production and / or inspection order is exported and stored in a downstream memory step in a data memory of the computer unit.
  • the subsequent process step 5) essentially takes place in one building.
  • subordinate process step 5a a physical measurement of the subassemblies by means of known technical devices, such as a laser tracker and / or photogrammetric methods.
  • the metrological measured variables resulting from method step 5a) are stored in the data memory of the computer unit in a subsequent memory step.
  • At the step 5a) is followed by a storage step in which these measured metrological data are stored or cached in the data memory of the computer unit.
  • an evaluation of the acquired metrological parameters takes place.
  • the resulting measurement result is evaluated within the framework of a desired-actual comparison taking place in method step 5c).
  • the alignment parameters and the measured variables from the production and / or test order stored in the data memory in method step 4) are taken into account in this target / actual comparison.
  • a measurement deviation results is evaluated in a further method step 5d).
  • tolerances of the manufacturing and / or test order stored in the data memory in method step 4) are included in this evaluation.
  • manufacturing data results which in turn are stored in a memory step in the data memory of the computer unit.
  • a plausibility check of the imported manufacturing data and the storage in a central memory of the computer unit takes place.
  • the process step 5d) is followed by a tolerance query, in which it is decided whether a tolerance fulfillment exists or whether a tolerance violation is given.
  • step 5g an evaluation of the number of defined iterations takes place in method step 5g).
  • the method step 5g) is followed by an iteration query. After passing through this iteration query, the process flow branches according to whether an increment n of the already passed iterations is less than or equal to a constant X, or if the increment n is greater than the constant X, where the constant X stands for a predetermined maximum number of process runs.
  • the method step 5g) is followed by the method step 5f), in which a (re) alignment of the subassemblies located in the construction site to create the finished component can take place.
  • the spatial orientation of the subassemblies in the construction site can be automated, for example, by means of positioning units controlled by the computer unit.
  • the method sequence is continued again with method step 5a).
  • the increment n is greater than the predetermined constant X, the method run is aborted after passing through the iteration query and continued with a method step 6).
  • an analysis and simulation of the production takes place on the basis of the real measurement results determined in method step 5b).
  • the resulting corrected test features and measured variables as well as the optimized tolerances and alignment parameters are stored in an additional intermediate storage step as an optimized production and / or test concept in the data memory of the computer unit.
  • This optimized production and / or test concept located in the data memory is then fed back to process step 2) by carrying out the creation and / or adaptation of a production and / or test order, wherein at the same time the process sequence is continued.
  • the analysis and simulation of the production resulting from the process step 6) on the basis of the real measurement results is finally compared with a production history located in the central memory (see Fig. 1).
  • FIG. 3 shows a screen mask 1 of one of many possible results of the evaluation of a measurement deviation carried out in method step 5d) using the example of a fuselage section 2 (shown is the upper half of a section) with a floor frame 3 accommodated therein, the fuselage section 2 in turn is formed with at least two side shells, not shown, and also not shown upper shell.
  • Two semicircles 4, 5 shown by dash-dot lines delimit a tolerance interval 6 in which a cross-sectional contour of the fuselage section 2 is allowed to move in order, for example, to attach further fuselage sections, not shown, to the fuselage section 2 in a manner suitable for quality.
  • a semicircle 7 shown by a dotted line reflects the ideal course (desired state) of a cross-sectional contour of the fuselage section 2 again.
  • Another, drawn with a solid line curve 8 illustrates the actual course (actual state) of the cross-sectional contour of the fuselage section 2. It is clear from the screen of Fig. 2 can be seen that the actual state of the fuselage section 2 is within the predetermined tolerance interval 6 and thus satisfies the quality specifications.
  • a coordinate system 9 is shown in the illustration of FIG. 2, whose x, y and z axes symbolize the three spatial directions.
  • the x-axis runs parallel to the imaginary direction of flight of the fuselage section 2, while the y-axis extends transversely to the x-axis viewed in the direction of flight and the z-axis extends vertically upward from an imaginary ground.
  • FIG. 4 shows a partial aspect of the method using the example of an alignment of a fuselage section in relation to a further component, not shown, which is, for example, a fuselage section to be attached.
  • a fuselage section 10 two floor scaffolds 1 1, 12 are added.
  • a curve 13 shown by a solid line symbolizes the ideal course, that is, a desired state of the contour of the fuselage section 10.
  • a further curve 14 shown in dashed lines reflects the achieved actual state of the cross-sectional contour of the fuselage section 10 after an iteration passage, while a dotted Curve 15 represents the state of the fuselage section 10 after a second pass.
  • the fuselage section 10 after passing through the alignment step 5f twice only, has largely approximated the desired state of the cross-sectional geometry indicated by the solid line.
  • riveting can not yet take place after passing through the alignment step 5f) in the building site only once, because of the clearly visible dimensional deviations.
  • the two iteration runs for the two floor scaffolds 1 1, 12 are each shown with a dotted and dashed line, not indicated by a reference numeral, while the corresponding one Target state is illustrated in each case by a horizontal line shown by a solid line.
  • a sufficient approximation to a predetermined desired state of the cross-sectional contour of the fuselage section 10 can be made clear for example in a screen mask for displaying further comparison results on a monitor by means of a red or green traffic light signal.
  • a coordinate system 16 with an x-axis, a y-axis and a z-axis illustrates the position of the fuselage section 10 and the two floor scaffolds 1 1, 12 in space, wherein the zero point (origin of the coordinate system 16) in the common intersection of x- Axis, the y-axis and the z-axis.
  • FIG. 5 illustrates in a schematic side view an exemplary embodiment of a construction site for carrying out the method, in particular method steps 5a) to 5f).
  • a construction site 17 configured as a preferably combined alignment and assembly site for producing a fuselage section 18 in a four-shell construction includes, inter alia, two side shell positioners 19, with which two side shells 21, 22 can be moved or aligned freely in space.
  • the side shells 21, 22 are preferably automatically accommodated by the side shell positioners 19, 20 by means of connecting elements, not shown, and can be fixed in position thereon.
  • a coordinate system 23 with an x-axis, a y-axis and a z-axis illustrates the position of all components of the building site 17 in three-dimensional space.
  • the orientation of the three orthogonal axes of the coordinate system 23 corresponds to the alignment of the axes of the coordinate systems in FIGS. 3, 4.
  • the soschalenpositionierer 19,20 and with them the side shells 21, 22 are moved by means not shown actuators parallel to the axes of the coordinate system 23.
  • the side dish positioners 19, 20 can optionally also be designed to be pivotable about at least one spatial axis of the coordinate system 23.
  • a lower shell 24 is retracted and aligned by means of a Unterschalenpositionierers, for example in the form of an underfloor conveyor vehicle 25 in the building site 17.
  • the lower shell 24 rests on a so-called pallet 26 on the underfloor transport vehicle 25.
  • the underfloor transport vehicle 25 permits at least one positioning capability of the lower shell 24 parallel to the three axes of the coordinate system 23, but may optionally also be provided via at least one pivoting system. axle. Also, the lower shell 24 is automatically fixable on the pallet 26 by means not shown connection organs and optionally detachable again.
  • the building site 17 has a presentation frame 27 for positioning and for driving in at least one floor scaffold 28 in the fuselage section 18. The equipment of the building site 17 is completed by an upper positioner 29 for aligning an upper shell 30. Both the presentation frame 27 and the upper shell positioner 29 allow at least one positioning of the upper shell 30 and the floor frame 28 parallel to each axis of the coordinate system 23.
  • Both the Oberschalenpositionierer 29 and the recuperativelytriglycerol 29 have automatically operated connection organs, which automatically fixes the position fixing and optionally also a solution of the floor frame 28 and allow the upper shell 30.
  • the side shells 21, 22, the lower shell 24, the floor scaffold 28, the upper shell 30 and the fuselage section 18 to be added or to be integrated therefrom constitute the substructure groups in the sense of the method sequence outlined in FIG.
  • the side dish positioners 19, 20, the top and bottom tray positioners 29, as well as the presentation frame 27 are positioning devices that allow for automated, virtually free alignment of the subassemblies to be mated in the building site in space. Furthermore, in the field of building site 17 in Fig. 5, not shown joining devices, such as rivet, bolt, gluing and / or welding machines, provided with automatic handling devices, such as standard articulated robots with multiple degrees of freedom and / or Portal robots, can be realized. In addition, not shown in the building site 17 measuring devices, such as laser trackers, photogrammetric devices and / or manually operated measuring devices provided to generate usually electronically directly evaluable and further processable measurements that are needed to carry out the process.
  • joining devices such as rivet, bolt, gluing and / or welding machines
  • automatic handling devices such as standard articulated robots with multiple degrees of freedom and / or Portal robots
  • All motion sequences of the two side shell positioners 19, 20 of the underfloor transport vehicle 25 with the lower shell 24 accommodated on the pallet 26 and the upper shell positioner 29 within the building site 17 are preferably controlled by at least one control and / or regulating device subordinate to the higher-level computer unit.
  • two work platforms, not shown, accessible and freely positionable in space working platforms can be provided on both sides of the upper shell 29 of the fuselage section 18. This workstation Men's manual intervention in the production process makes it easier to carry out manual reworking in a simple way.
  • the inventive method allows, in particular by the proposed feedback, a successive optimization of the manufacturing processes of large-sized components.
  • the method is not limited to the application in joining processes in the field of section assembly in aircraft, as schematically indicated in Fig. 5, limited.
  • the widest variety of possible applications arise in the field of general mechanical engineering, in the field of vehicle construction, shipbuilding, special machine construction and in the manufacture of wind turbines.

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Abstract
EP10716314A 2009-04-16 2010-04-13 Procédé pour optimiser un cycle de vie de données de mesure sur la base de la rétroaction lors de processus d'assemblage au cours de la fabrication Withdrawn EP2288537A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16989109P 2009-04-16 2009-04-16
DE102009002432A DE102009002432A1 (de) 2009-04-16 2009-04-16 Verfahren zur rückkopplungsbasierten Optimierung eines Messdatenlebenszyklus bei Fügeprozessen in der Fertigung
PCT/EP2010/054800 WO2010119023A2 (fr) 2009-04-16 2010-04-13 Procédé pour optimiser un cycle de vie de données de mesure sur la base de la rétroaction lors de processus d'assemblage au cours de la fabrication

Publications (1)

Publication Number Publication Date
EP2288537A1 true EP2288537A1 (fr) 2011-03-02

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ID=42779469

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Application Number Title Priority Date Filing Date
EP10716314A Withdrawn EP2288537A1 (fr) 2009-04-16 2010-04-13 Procédé pour optimiser un cycle de vie de données de mesure sur la base de la rétroaction lors de processus d'assemblage au cours de la fabrication

Country Status (4)

Country Link
US (1) US8352057B2 (fr)
EP (1) EP2288537A1 (fr)
DE (1) DE102009002432A1 (fr)
WO (1) WO2010119023A2 (fr)

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Publication number Priority date Publication date Assignee Title
US10832592B2 (en) * 2013-01-31 2020-11-10 The Boeing Company Pilot assessment system
CN104655064B (zh) * 2013-11-22 2017-04-19 中国航空工业集团公司西安飞机设计研究所 一种发动机安装拉杆公差值大小的确定方法
FR3022065B1 (fr) * 2014-06-04 2017-10-13 European Aeronautic Defence & Space Co Eads France Procede de generation d'une maquette numerique enrichie
EP2980736A1 (fr) * 2014-07-28 2016-02-03 PFW Aerospace GmbH Procédé de fabrication d'un objet composé d'une multitude d'éléments individuels, module de construction et système de fabrication
CN110682085B (zh) * 2019-10-31 2021-11-16 中船动力研究院有限公司 一种轴系对中的方法
CN119090832B (zh) * 2024-08-22 2025-05-13 深圳市科鸿展塑胶模具有限公司 基于图像处理的塑胶制品缺陷检测方法及系统

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US5237508A (en) * 1989-08-10 1993-08-17 Fujitsu Limited Production control system
US6725184B1 (en) * 1999-06-30 2004-04-20 Wisconsin Alumni Research Foundation Assembly and disassembly sequences of components in computerized multicomponent assembly models
JP4693225B2 (ja) * 2000-11-06 2011-06-01 株式会社東芝 製造ラインの自動品質制御方法及びその装置並びに記憶媒体、自動品質制御プログラム
US7220990B2 (en) * 2003-08-25 2007-05-22 Tau-Metrix, Inc. Technique for evaluating a fabrication of a die and wafer

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Also Published As

Publication number Publication date
US20110208340A1 (en) 2011-08-25
US8352057B2 (en) 2013-01-08
WO2010119023A2 (fr) 2010-10-21
DE102009002432A1 (de) 2010-10-28

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