Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    The realistic robot simulation -RRS- interface
    ( 1994)
    Bernhardt, R.
    ;
    Schreck, G.
    ;
    Willnow, C.
    Tools for simulation and off-line programming became an important means for economic application of industrial robots. Until now the accuracy of simulation was not sufficiently precise for reliable down-load and execution of the off-line generated programs. A main cause for this was the controller specific motion behaviour of the robots that could not be simulated with sufficient accuracy. The RRS-project was created to overcome this deficite. By defining a suitable interface, it was made possible to integrate original controller software for motion behaviour into off-line programming systems.
  • Publication
    Development demands for robotized manufacturing systems
    ( 1993)
    Bernhardt, R.
    ;
    Schreck, G.
    Software tools for planning and simulations of robotized systems are commercially available and more and more used in industry. The intention of using these tools is to support the whole procedure form the selection of the robots and workcell components, the generation of all task programs down to the execution of the manufacturing task in the real workcell at the shopfloor. Additionally methods and tools concerning measurements, calibration, monitoring and diagnosis have to be considered. Today not all of the necessary steps for planning, implementing, operating and maintaining robotized manufacturing systems are adequately considered. In this article the principle demands for future developments are stated. Furthermore the R and D work which has been performed in this connection by the European Strategic Programme for Research and Development in Information Technology (ESPRIT), will be described on the basis of a few selected projects.
  • Publication
    An expert system for technology planning of arc welding application
    ( 1993)
    Bernhardt, R.
    ;
    Landvogt, W.
    ;
    Schreck, G.
    The paper presents a knowledge based system for the planning and diagnosis of technological parameter for automized gas metal are welding applications. The PROLOG-based system is designed as part of an off-line programming environment for industrial robots. It combines heuristic reasoning and data base retrieval techniques to derive a welding schedule. Welding schedules can be passed to a diagnosis module. The integration of planning and diagnosis techniques allows an iterative optimization of the technological parameter of the welding process. The system has been developed in the CIM-PLATO project of the ESPRIT research program of the European Community.
  • Publication
    Execution planning for robotized production cells
    ( 1990)
    Bernhardt, R.
    An integrated manufacturing system planning and off-line programming concept is presented. A realized system for planning and explicit programming of a robotized assembly cell is explained in detail.
  • Publication
    Integrated manufacturing system planning and off-line programming
    ( 1990)
    Bernhardt, R.
    An integrated manufacturing system planning and off-line programming concept is presented. A realized system for planning and explicit programming of a robotized assembly cell is explained in detail.
  • Publication
    Integrated planning and off-line programming system for robotized work cells.
    ( 1989)
    Bernhardt, R.
    The paper gives a short survey of the ESPRIT 623 project: Operational Control for Robot System Integration into CIM, Systems Planning, Implicit and Explicit Programming in which twelve companies, universities and research institutions are involved. About three years after the project's commence work has started to combine software modules developed by different partners to integrated systems with increased functionality. To accomplish this four working groups have been installed which are working on different aspects, e.g. access to different data bases or direct usage for industrial application. These realized system reflect also the specific interests of the involved companies. In this paper the realized inegrated planning and explicit offline programming system is presented in more detail and some applications reaching from off-shore over the automotive industry up to space technology are described.
  • Publication
    Knowledge based off-line programming of industrial robots
    ( 1988)
    Schahn, M.
    ;
    Schreck, G.
    ;
    Bernhardt, R.
    The paper presents a concept and a first realization of a knowledge based off-line programming system. The design is based on an already developed system which was also applied for relevant production tasks. A characteristic feature of the system is a production task specific, dialog oriented user interface. For a flexible realization of the user interface knowledge based approaches have been applied. A concept for a first realization is presented. (IPK)