Stiffness modeling of machine tools based on machining space analysis

Gao, Xianming; Li, Baotong; Hong, Jun; Guo, Junkang

doi:10.1007/s00170-015-8336-z

Cited by 46 publications

(15 citation statements)

References 28 publications

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“…The analysis included the gyroscopic moment, bearing stiffness or different spindle speeds related to the stiffness. Studies combining prediction of machine tool stiffness analytically and its experimental verification were described in [15] by Gao et al The static stiffness field of the machining space was estimated. Furthermore, the effect of the six-directional static stiffness was analysed due to possibility of reducing of the machining errors.…”

Section: Introductionmentioning

confidence: 99%

A new measurement system to determine stiffness distribution in machine tool workspace

Pawełko

Jastrzębski

Parus

et al. 2021

Archiv.Civ.Mech.Eng

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This paper presents an innovative system determining machine tool quasi-static stiffness in machining space, so-called Stiffness Workspace System (SWS). The system allows for the assessment of the accuracy of a machine which has become a vital aspect over past years for machine tool manufacturers and users. Since machine tools static stiffness is one of the main criteria using to evaluate the machines' quality, it is crucial to highlight the relevance of experimental and analytical stiffness determination methods. Therefore, the proposed method is applied to estimate the spatial variation of static stiffness in the machine tool workspace. This paper describes the SWS system—its design, working principle, mounting conditions and signal processing. The major advantage of the system is the capability to apply forces of controlled magnitude and orientation as well as simultaneously measure the resulting displacements. The obtained results give possibility to estimate and evaluate static stiffness coefficients depending on the position and direction under loaded conditions. The results confirm the validity of the analyses of spatial stiffness distribution in the machine workspace.

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Section: Introductionmentioning

confidence: 99%

A new measurement system to determine stiffness distribution in machine tool workspace

Pawełko

Jastrzębski

Parus

et al. 2021

Archiv.Civ.Mech.Eng

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“…Such an approach differs from the methods presented in this paper, where the force is directly measured with a force/torque sensor and the deflection is measured externally. The approach more resembles the method presented in Xianming et al (2016).…”

Section: Test Equipment and Setupmentioning

confidence: 99%

Methods for Experimentally Determining Stiffness of a Multi-Axis Machining Centre

Røsjordet¹,

Hovland²

2019

MIC

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“…Work [13] addresses the influence of rigidity of shapeforming nodes in a CNC drilling-boring and milling machine on the machining error [13]. A new approach is proposed that relates to modeling a field of static rigidity using the main parameter -«generalized rigidity» -at the scale of the machine working area.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%