Spatial Compliance Measurement of a Clamping Table with Integrated Force Sensors
1
Institute for Machine Tools and Forming Technology, Fraunhofer, Germany
2
Institute of Mechatronic Engineering, Chair of Machine Tools Development and Adaptive Controls, TU Dresden, Germany
Submission date: 2021-12-03
Acceptance date: 2022-02-08
Online publication date: 2022-02-17
Publication date: 2022-03-30
Corresponding author
Christian Friedrich
Institute for Machine Tools and Forming Technology, Fraunhofer, Nöthnitzer Straße 44, 01187, Dresden, Germany
Institute for Machine Tools and Forming Technology, Fraunhofer, Nöthnitzer Straße 44, 01187, Dresden, Germany
Journal of Machine Engineering 2022;22(1):70-83
KEYWORDS
TOPICS
ABSTRACT
Force sensor integration into machine components is a promising approach to measure spatial process forces, especially, when regarding hexapod structures and kinematics. Rigid still-standing hexapod frameworks, such as clamping tables, are particular suitable for this approach, as no dynamic influences need to be taken into account within the measurement model and they allow a measurement in 6 degrees of freedom. On the other hand, the stiffness of rigid frameworks is reduced by sensor integration. Further, many approaches apply joints or flexure hinges to reduced lateral forces and improve the measuring quality, which reduce the stiffness even more. In this contribution, the compliance of a clamping table with integrated force sensors and flexure hinges is determined by experimental measurements, by analytic calculation, and by finite element simulation. Lastly, the amount of stiffness reduction by force sensors and flexure hinges is quantified and different methods for compliance determination are compared.
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CITATIONS (1):
1.
Echtzeitsimulation in der Produktionsautomatisierung
Christian Friedrich, Jens Müller, Steffen Ihlenfeldt
Christian Friedrich, Jens Müller, Steffen Ihlenfeldt
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| eISSN: | 2391-8071 |
| ISSN: | 1895-7595 |
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