Sensing Linear Roller Guide Carriages for Condition Monitoring Applications

4 Pages Posted: 6 Oct 2021

See all articles by Berend Denkena

Berend Denkena

Leibniz Universität Hannover - Institute of Production Engineering and Machine Tools

Benjamin Bergmann

Gottfried Wilhelm Leibniz Universität Hannover

Per Schreiber

Gottfried Wilhelm Leibniz Universität Hannover

Alexander Schmidt

Gottfried Wilhelm Leibniz Universität Hannover

Markus Klaproth

Gottfried Wilhelm Leibniz Universität Hannover

Date Written: October 5, 2021

Abstract

Insufficient lubrication is a common cause of rolling guide failure. Especially high process forces during machining of high-strength materials such as titanium-based alloys cause strong loads on these machine components. That is why maintenance is particularly important during the manufacturing of aerospace components. Especially here, scrap parts lead to high costs. Furthermore, rework, e.g. in order to maintain tolerances, is often not possible. An approach to avoid unnecessary machine tool downtimes due to maintenance is to use condition monitoring systems. The aim is to draw conclusions about the condition and remaining service life of machine components through continuous data collection and evaluation of sensor signals during operation. This means that maintenance intervals and thus downtimes can be planned and unexpected downtimes are avoided. In this paper, an approach is presented to evaluate the grease condition of linear roller guide carriages by integrated sensors. The measured signals are analyzed in its frequency domain to detect lubrication-dependent signal characteristics. Differences in the characteristic frequencies are used to identify a change in the lubrication condition. It is examined whether semiconductor strain gauge sensors or conventional rosette strain gauge sensors are more suited for this approach. The results show that both strain gauge types are able detect lubrication-related differences in the strain signal. But in contrast to rosette strain gauge, semiconductor strain gauge lubrication-related signal changes are more definite. Thus, the use of semiconductor strain gauges for lubrication condition monitoring requires less signal data processing.

Keywords: Linear roller guide carriage; strain gauge sensor; lubrication; condition monitoring

Suggested Citation

Denkena, Berend and Bergmann, Benjamin and Schreiber, Per and Schmidt, Alexander and Klaproth, Markus, Sensing Linear Roller Guide Carriages for Condition Monitoring Applications (October 5, 2021). Proceedings of the Machining Innovations Conference for Aerospace Industry (MIC) 2021, Available at SSRN: https://ssrn.com/abstract=3936526 or http://dx.doi.org/10.2139/ssrn.3936526

Berend Denkena

Leibniz Universität Hannover - Institute of Production Engineering and Machine Tools ( email )

Germany

Benjamin Bergmann

Gottfried Wilhelm Leibniz Universität Hannover ( email )

Welfengarten 1
Hannover, DE 30167
Germany

Per Schreiber

Gottfried Wilhelm Leibniz Universität Hannover ( email )

Welfengarten 1
Hannover, DE 30167
Germany

Alexander Schmidt

Gottfried Wilhelm Leibniz Universität Hannover ( email )

Welfengarten 1
Hannover, DE 30167
Germany

Markus Klaproth (Contact Author)

Gottfried Wilhelm Leibniz Universität Hannover ( email )

Welfengarten 1
Hannover, DE 30167
Germany

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