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J. Manuf. Mater. Process. 2018, 2(1), 14; https://doi.org/10.3390/jmmp2010014

Modelling Machine Tools using Structure Integrated Sensors for Fast Calibration

Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University, 52074 Aachen, Germany
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Received: 26 January 2018 / Revised: 18 February 2018 / Accepted: 18 February 2018 / Published: 23 February 2018
(This article belongs to the Special Issue Precision Manufacturing)
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Abstract

Monitoring of the relative deviation between commanded and actual tool tip position, which limits the volumetric performance of the machine tool, enables the use of contemporary methods of compensation to reduce tolerance mismatch and the uncertainties of on-machine measurements. The development of a primarily optical sensor setup capable of being integrated into the machine structure without limiting its operating range is presented. The use of a frequency-modulating interferometer and photosensitive arrays in combination with a Gaussian laser beam allows for fast and automated online measurements of the axes’ motion errors and thermal conditions with comparable accuracy, lower cost, and smaller dimensions as compared to state-of-the-art optical measuring instruments for offline machine tool calibration. The development is tested through simulation of the sensor setup based on raytracing and Monte-Carlo techniques. View Full-Text
Keywords: volumetric performance; machine tool calibration; interferometry; cameras; raytracing; Gaussian laser volumetric performance; machine tool calibration; interferometry; cameras; raytracing; Gaussian laser
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Montavon, B.; Dahlem, P.; Peterek, M.; Ohlenforst, M.; Schmitt, R.H. Modelling Machine Tools using Structure Integrated Sensors for Fast Calibration. J. Manuf. Mater. Process. 2018, 2, 14.

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