DISPOSITIF DE TEST POUR TESTER DES SYSTÈMES À VIS ET PROCÉDÉ DE TEST POUR CELUI-CI

摘要

The invention relates to a testing device (10) for testing screw spindles or screw systems, said testing device being provided for installing between an output of a screw spindle to be tested and a screwing location. The testing device has a torsion element (12) which is received in a main part (11) such that the torsion element is provided with a specified pretension and is used to apply a spring characteristic to a screw spindle torque curve, which is produced by a screw spindle to be tested, when the torque curve influences the torsion element (12). The spring characteristic is determined by two stop positions of the torsion element, and means are provided in order to analyze measured data which characterizes the torque curve of the screw spindle in that torque curve interpolation nodes which correspond to the stop positions and which determine the spring characteristic are used as a measure in order to evaluate a screw spindle behavior which deviates from the norm using the analyzed measured data and the spring characteristic impressed in the measured data.