Method for controlling a screwing process
AssigneeAudi AG
InventorsStephan Matzka, Anton Schemmerer, André Blum, Partho Rahman
Life of this patent
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Abstract
A method for controlling a screwing process, includes during the screwing process screwing a screw into a component with an electrical screwing device; detecting during the screwing process an actual course of at least one process parameter of the screwing; testing whether the actual course has a pattern which predicts an error of the screwing process; and terminating the screwing process early when the actual course has said pattern.
Claims10
A method for controlling a screwing process, comprising:
- during the screwing process screwing a screw into a component with an electrical screwing device;
- detecting during the screwing process an actual course of at least one process parameter of the screwing;
- testing whether the actual course has a pattern indicating an abrupt spike in torque later in the screwing process, which pattern predicts an error of the screwing process;
- terminating the screwing process early when the actual course has said pattern;
- placing of a new screw;
- and
- performing a new screwing process.
A system for controlling a screwing process in which a screw is screwed by an electrical screwing device into a component, said system comprising:
- at least one sensor configured to detect during the screwing process an actual course of at least one process parameter of the screwing process;
- and
- at least one control unit configured to test whether the actual course has a pattern indicating an abrupt spike in torque later in the screwing process, which pattern predicts an error of the screwing process, to prematurely terminate the screwing process when the actual course has said pattern, to place a new screw and to perform a new screwing process.
Dependencies are inferred from the claim text.