Testing device for testing screw systems, and testing method for this purpose

Abstract

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.

Description

technical field [0001] The invention relates to an inspection device for inspecting a threaded screw or screw system, which is provided for mounting screw connections or threaded points, and also to an inspection method for this purpose. Background technique [0002] In order to periodically check and calibrate motorized screw screws or screw systems, which are used especially in assembly lines or production lines for assembling threaded parts or screw connections, so-called feedback sensors are used to sense the angle of rotation and Torque and angle of rotation are sensed / or torque or in combination. In this case, the screw system to be checked is evaluated by comparing measured or displayed values ​​of the screw system to be checked with corresponding measured or displayed values ​​of the feedback sensor used, which for this purpose usually Arranged or adapted between the output of the threaded screw of the threaded system to be checked and the threaded point or threaded...

AI Technical Summary

Problems solved by technology

On the one hand, this results in complex measuring configurations that involve relatively high costs, which can only be realized with great effort in the production line, and on the other hand result in high measuring complexity, since two separate measuring sequences are required to evaluate the Check the screw system

Such a feedback measurement system is suitable for sensing two characteristic parameters, that is, for sensing torque and for sensing rotation angle. Especially in the measurement system, due to the high complexity of the measurement structure, it is almost only Check runs only possible under laboratory conditions

Images