Details
| Original language | English |
|---|---|
| Title of host publication | European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 23rd International Conference and Exhibition, EUSPEN 2023 |
| Editors | O. Riemer, C. Nisbet, D. Phillips |
| Pages | 207-210 |
| Number of pages | 4 |
| ISBN (electronic) | 9781998999132 |
| Publication status | Published - 2023 |
| Event | 23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023 - Copenhagen, Denmark Duration: 12 Jun 2023 → 16 Jun 2023 |
Publication series
| Name | European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 23rd International Conference and Exhibition, EUSPEN 2023 |
|---|
Abstract
Monitoring machining processes can help to increase the quality of machined workpieces. However, not all relevant information (e.g. process forces) can be sufficiently obtained by observing the drive signals. Various sensory devices have been developed during the last years to overcome this deficit. Such sensory devices include spindle slides, clamping systems, and tool holders. These devices are usually exclusively designed for individual machines or processes. Thus, these systems can rarely be adapted for other use cases affecting their scope of application. Other sensor concepts reduce the stiffness of the machine tool and therefore the machining accuracy. As a standardized component in machine tools, linear guides offer the potential to measure forces without reducing the stiffness of the machine tool. Thus, this paper presents a novel approach for force measurement with sensory linear rolling guides. Compared to previous approaches, the number of sensors is reduced, decreasing manufacturing effort. Considering the high stiffness of the guide carriage and the resulting low strains, foil-based modified metal strain gauges with a gauge factor k ≈ 10 are used to measure forces perpendicular to the guide rail. Based on an FE-simulation, adequate sensor positions are selected. A prototype of the sensory guide carriage is evaluated on a tensile test stand to determine the minimal measurable force based on the signal-tonoise ratio and the signal drift. The signals of the strain gauges allow a force resolution of 0.11 % of the load rating of the guide carriage. This is achieved by using a Kalman filter based state estimation model to compensate for the noise.
Keywords
- Strain gauge, force measurement, linear rolling guide, machine tools
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
- Engineering(all)
- Mechanical Engineering
- Environmental Science(all)
- Environmental Engineering
- Materials Science(all)
- Physics and Astronomy(all)
- Instrumentation
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European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 23rd International Conference and Exhibition, EUSPEN 2023. ed. / O. Riemer; C. Nisbet; D. Phillips. 2023. p. 207-210 (European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 23rd International Conference and Exhibition, EUSPEN 2023).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Force sensing linear rolling guides based on modified metal strain gauges
AU - Denkena, Berend
AU - Klemme, Heinrich
AU - Kowalke, Dennis
AU - Korbacher, Michael
AU - Ottermann, Rico
AU - Dencker, Folke
AU - Wurz, Marc
N1 - Publisher Copyright: © 2023 Euspen Headquarters.
PY - 2023
Y1 - 2023
N2 - Monitoring machining processes can help to increase the quality of machined workpieces. However, not all relevant information (e.g. process forces) can be sufficiently obtained by observing the drive signals. Various sensory devices have been developed during the last years to overcome this deficit. Such sensory devices include spindle slides, clamping systems, and tool holders. These devices are usually exclusively designed for individual machines or processes. Thus, these systems can rarely be adapted for other use cases affecting their scope of application. Other sensor concepts reduce the stiffness of the machine tool and therefore the machining accuracy. As a standardized component in machine tools, linear guides offer the potential to measure forces without reducing the stiffness of the machine tool. Thus, this paper presents a novel approach for force measurement with sensory linear rolling guides. Compared to previous approaches, the number of sensors is reduced, decreasing manufacturing effort. Considering the high stiffness of the guide carriage and the resulting low strains, foil-based modified metal strain gauges with a gauge factor k ≈ 10 are used to measure forces perpendicular to the guide rail. Based on an FE-simulation, adequate sensor positions are selected. A prototype of the sensory guide carriage is evaluated on a tensile test stand to determine the minimal measurable force based on the signal-tonoise ratio and the signal drift. The signals of the strain gauges allow a force resolution of 0.11 % of the load rating of the guide carriage. This is achieved by using a Kalman filter based state estimation model to compensate for the noise.
AB - Monitoring machining processes can help to increase the quality of machined workpieces. However, not all relevant information (e.g. process forces) can be sufficiently obtained by observing the drive signals. Various sensory devices have been developed during the last years to overcome this deficit. Such sensory devices include spindle slides, clamping systems, and tool holders. These devices are usually exclusively designed for individual machines or processes. Thus, these systems can rarely be adapted for other use cases affecting their scope of application. Other sensor concepts reduce the stiffness of the machine tool and therefore the machining accuracy. As a standardized component in machine tools, linear guides offer the potential to measure forces without reducing the stiffness of the machine tool. Thus, this paper presents a novel approach for force measurement with sensory linear rolling guides. Compared to previous approaches, the number of sensors is reduced, decreasing manufacturing effort. Considering the high stiffness of the guide carriage and the resulting low strains, foil-based modified metal strain gauges with a gauge factor k ≈ 10 are used to measure forces perpendicular to the guide rail. Based on an FE-simulation, adequate sensor positions are selected. A prototype of the sensory guide carriage is evaluated on a tensile test stand to determine the minimal measurable force based on the signal-tonoise ratio and the signal drift. The signals of the strain gauges allow a force resolution of 0.11 % of the load rating of the guide carriage. This is achieved by using a Kalman filter based state estimation model to compensate for the noise.
KW - Dehnungsmessstreifen, Kraftmessung, Linearrollenführung, Werkzeugmaschine
KW - Strain gauge, force measurement, linear rolling guide, machine tools
UR - http://www.scopus.com/inward/record.url?scp=85175185378&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85175185378
T3 - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 23rd International Conference and Exhibition, EUSPEN 2023
SP - 207
EP - 210
BT - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 23rd International Conference and Exhibition, EUSPEN 2023
A2 - Riemer, O.
A2 - Nisbet, C.
A2 - Phillips, D.
T2 - 23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023
Y2 - 12 June 2023 through 16 June 2023
ER -