Finite Element Analysis of Static and Dynamic Characteristics of High-Speed Horizontal Machining Center Bed

Wang, Peng; Zuo, Yan Rui; Ren, Linzhu; Song, Dong Dong

doi:10.4028/www.scientific.net/amr.889-890.58

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…The factors that affect the static and dynamic performance of the bed mainly include the topology, material properties, manufacturing processes, and support methods. 3 Support point layout has an important influence on the working performance of the machine tool, when the material properties, manufacturing process, and internal topological structure of the machine bed are determined.…”

Section: Introductionmentioning

confidence: 99%

An optimized design method of three-point support for precision horizontal machining center with T-shape bed

Lin¹,

Tian²,

Zhang³

et al. 2021

Preprint

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The support point layout of the machine tool has an important influence on the working performance of the machine tool, when the material, manufacturing process and internal structure of machine bed are determined. In order to ensure that the precision machine tool has good leveling performance, stability and anti-interference, this paper presents an optimized design method of three-point support for T-shape bed of precision horizontal machining center. This article first establishes the statics model of the T-shape bed and analyzes grillage beam model used to characterize the main static deformation trend of the bed based on the singular function method. After verifying the rationality of the model through simulation, the optimized three-point support position can be obtained. Then this paper measured the deformation of the upper surface of a simple bed due to gravity. The deviation between the experimental results and the simulation results is less than 20%, which verifies the reliability of the simulation and theoretical results. Based on the ISIGHT multi-disciplinary optimization platform, this paper completes the multi-objective optimization of the support point layout of the bed, and the optimization results prove the accuracy of the theoretical model. This paper takes the bed of M800H precision horizontal machining center as an example to illustrate the application process of the proposed method. Finally, this paper compares the optimization effect of the static characteristics of the bed and the whole machine. The maximum deformation of the bed has reduced by 27.1%. In the whole machine status, the deformation of the spindle end has reduced by 50.8%, and the maximum deformation of the workpiece end have reduced by 50.0%.

show abstract

Section: Introductionmentioning

confidence: 99%

An optimized design method of three-point support for precision horizontal machining center with T-shape bed

Lin¹,

Tian²,

Zhang³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…During the simulation analysis, the shaft was simplified as a beam, the bearing was only considered radial stiffness and damping, and the effect of preload was ignored. Yang built the spindle bearing model by MSC.Nastran, and analyzed its natural frequency [2] . Sin and Hu analyzed the effect of preload to the natural frequency in the simplified bearing by the finite element software [3,4] .…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behavior of All-Ceramic Spindle-Bearing Unit with Preload

Feng

et al. 2013

AMM

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Abstract. Because of the extraordinary physical properties of engineering ceramics such as high hardness, low thermal expansion, light weight and abrasion resistant, it accommodates very well with the high-speed and precision requirements of spindle-bearing unit. In order to prove the superior dynamic characteristic of the all-ceramic spindle-bearing unit bacause of the application of engineering ceramics in shaft and bearing of spindle system, the natural frequency and modes of the all-ceramic spindle-bearing unit were analyzed. In this study, spindle-bearing model was built and analyzed by the Finite Element Method(FEM) and Hertz theory, comprehensively considering both of the stiffness of bearing and the effect of preload, which was different from the tranditional spindle analysis model. The research results show that all-ceramic spindle-bearing unit has higher natural frequency and better dynamic characteristics compare of traditional steel spindle-bearing unit.

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Realization Method of Calculating the Logarithmic Decrement in Turning and Boring CNC Machines Technological Systems

D’yakonov

Nurkenov

Kazansky

2017

Procedia Engineering

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Finite Element Analysis of Static and Dynamic Characteristics of High-Speed Horizontal Machining Center Bed

Cited by 3 publications

References 2 publications

An optimized design method of three-point support for precision horizontal machining center with T-shape bed

An optimized design method of three-point support for precision horizontal machining center with T-shape bed

Dynamic Behavior of All-Ceramic Spindle-Bearing Unit with Preload

Realization Method of Calculating the Logarithmic Decrement in Turning and Boring CNC Machines Technological Systems

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