The joint project of HÄFNER Präzisionsteile Oberrot GmbH and Fraunhofer IESE builds on the open Industrie 4.0 platform BaSys 4, which IESE uses as a basis for Industrie 4.0 projects. This platform is also used in the BaSys satellite project “BaSys4SupplyQ” with HÄFNER Präzisionsteile Oberrot to realize data exchange with customers in the area of Industrie 4.0. In addition to HÄFNER Präzisionsteile Oberrot, Pickert GmbH and the wbk Institute for Production Technology were also involved in the project.
HÄFNER Präzisionsteile Oberrot GmbH is a producer of high-precision weights in single to small lot productions, partly highly individualized. This means that a wide variety of different geometric forms of weights are manufactured. The weights are regularly recalibrated after the initial calibration, with the interval being determined by the customer.
In addition, HÄFNER Präzisionsteile Oberrot produces precision parts (e.g., for transmissions), where various kinds of data are recorded in a CAQ (Computer-Aided Quality) system during quality assurance. This involves quality data generated during measurements in special measurement laboratories.
In both cases, data must be exchanged across company boundaries. The aim of this project is to use Digital Twins at precisely this point as the basis for a service platform for exchanging data with customers. In the form of the asset administration shell, this is one of the central concepts of Industrie 4.0.