Overview
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Volumetric compensation of geometric guide deviations
AfM Technology GmbH is an international solution provider in the field of mobile measurement technology based in Germany. The focus of the company lies in the metrological detection and correction of geometric guide deviations within machine tools, coordinate measuring machines, robot systems and other multi-axis machine systems.
Determination of geometrically reproducible translational and rotational guide deviations of machine axes. Based on the determined deviations a correction field is created for SINUMERIK CNCs. The correction of all single deviations ensues depending on the machine position at the tool center point (TCP) at machine runtime.
Benefits
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- Capture and visualize geometric deviations of machine axes
- Capture and visualize reproducibility of machine axes
- Creation of machine-specific correction fields for SINUMERIK CNCs
- Significant improvement of machine accuracy by volumetric correction at runtime
- Verification of the accuracy improvement achieved owing to the volumetric compensation
Function
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Due to the manufacturing process, machine axes deviate from their ideal geometrical shape and are never exactly perpendicular to each other. The existing geometrical deviations lead to translational and rotational deviations which have the effect that the actual position deviates from the target position.
- AfM Technology GmbH acquires the existing, individual geometry deviations of all axes with special measuring methods.
- From the individual errors, AfM Technology GmbH can generate a machine-specific error map for the CNC and save it in the control.
By knowing the single geometry deviations from the error map, the SINUMERIK Run MyCC /VCS option is able to calculate the total error at the tool center point (TCP) during runtime at every individual position. As soon as this error has been calculated, the CNC can change the coordinates of the target position so that the calculated deviations are taken into account and the tool center point thus reaches the setpoint specified in the CNC program in the best possible way. Significant increases in the accuracy of the machine and machined products are the result.
Integration
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Volumetric compensation is available for the following CNCs:
- SINUMERIK 840D sl:
- with the SINUMERIK spatial compensation option Run MyCC /VCS
- SINUMERIK ONE:
- with the SINUMERIK spatial compensation option Run MyCC /VCS
More information