Method for determining the clamping force
AssigneeRoehm GmbH
InventorMartin STANGL
Life of this patent
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Abstract
A method for determining the clamping force of a force-actuated, rotationally drivable clamping device of a machine tool. An object is clamped with an actuation force F. Model-based calculation of the clamping force Fcalc to be expected is performed based on the actuation force F and the operating parameters of the machine tool in a control unit of the machine tool. Performing clocked measurement of the clamping force Freal acting upon the object in the clamping device within the time span of a measurement interval I. Wireless transming the measured value Freal to the control unit of the machine tool, and comparison of the measured value Freal with the calculated clamping force Fcalc. The measurement interval is adapted if the comparison reveals a deviation which reaches a threshold value.
Claims8
A method for determining a clamping force of a force-actuated, rotationally drivable clamping device of a machine tool, the method comprising:
- clamping an object with an actuation force;
- model-based calculating the clamping force to be expected based on the actuation force and operating parameters of the machine tool in a control unit of the machine tool;
- clocked measuring the clamping force acting upon the object in the clamping device within a time span of a measurement interval;
- wirelessly transmitting the measured value to the control unit of the machine tool;
- comparing the measured value with a calculated clamping force;
- and
- adapting the measurement interval if the comparison reveals a deviation which reaches a threshold value.
Dependencies are inferred from the claim text.