Device for predictive diagnosis of the current quality of the technical work result of a technical system, in particular the current quality of the welding spots of a spot welding robot

摘要

A device for predictively diagnosing the prevailing quality of the technical work result of a technical installation, in particular, the prevailing quality of the welding spots of a welding robot. The device includes a device for cyclically acquiring sets of measured values, whose values influence the desired quality of the work result of the system ,an installation model which uses sets of measured values of the installation to simulate an actual value for the prevailing quality of the work result of the installation, and a device at least for parameterizing the installation model. The parameterizing device includes a data base for storing selected sets of measured values and associated characteristic values, which are a measure for the quality of the work result of the installation, and the device generating and/or optimizing at least the parameters of the installation model by successively evaluating the sets of measured values and the associated characteristic quality values by an iterative optimization.