Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Knowledge-based integration of design and assembly process planning
    ( 1993)
    Seliger, G.
    ;
    Hsieh, L.-H.
    ;
    Wang, Y.
    Concurrent engineering is an approach for fast product development. To support concurrent product design and process planning effective tools are needed. This paper desribes the development of a knowledge-based system for this approach. lt consists of tools for feature-based product design, design for assembly analysis, and process planning. All tools work on an integrated product and process model. The integrated model and the data structure of the developed assembly-features are discussed. The perspective of using knowledge-based methods for realizing concurent engineering is described.
  • Publication
    Sensor-aided programming and movement. Adaptation for robot-guided deburring of castings
    ( 1991)
    Hsieh, L.-H.
    ;
    Seliger, G.
    Automatically identifying burrs and planning robot trajectories for respective castings, geometrical and technological adaptation parallel to the process are tasks to be solved for flexible deburring automation. Conditions of access and collision as well as different technologies e.g. milling, grinding or brushing must be considered for process design. A universal process modell based on a frame concept with homogeneous transformation matrices has been applied for implementation on a microcomputer thus coupling robot control and sensorial devices. The paper describes a prototypical realization of deburring operations in a robot cell. Evaluation criteria for different technological approaches are given.