Adaptation of compensation data for reducing positioning errors in machine tools and robots
AssigneeSiemens Aktiengesellschaft
InventorThomas Puchtler
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AssigneeSiemens Aktiengesellschaft
InventorThomas Puchtler
Estimating the term…
In a method for compensating static positioning errors, in particular position and orientation errors, in guiding a movement of a movable machine element of an industrial processing machine, positioning errors are initially measured at startup of the machine and stored in a compensation table in a numerical controller (CNC). These values are used to generate reference values for compensating the errors. Deviations between the measured points in the table are interpolated. The actual position is measured during machining by using an additional measurement system and compared with the nominal position. Typically, the points of the measurement are different from the points in the compensation table. The compensation values can be improved continuously in two ways: on one hand, by extending the compensation table by adding the measured points and, on the other hand, by adapting the points of the compensation table adjacent to the corresponding measurement point.
A method for compensating static positioning errors in guiding a movement of a movable machine element of an industrial processing machine, with a predetermined standard parameter for generating reference variables for one or several drives for controlling the machine element in a predetermined workspace, comprising the steps of:
A method for compensating static positioning errors in guiding a movement of a movable machine element of an industrial processing machine, with a predetermined standard parameter for generating reference variables for one or several drives for controlling the machine element in a predetermined workspace, comprising the steps of:
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