Centrifugal force induced dynamics of a motorized high-speed spindle

Chen, Jenq-Shyong; Hwang, Yii-Wen

doi:10.1007/s00170-005-0032-y

Cited by 51 publications

(20 citation statements)

References 16 publications

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“…Chen and Hwang analyze factors that lead to stiffness decreasing and influence of dynamic features [7]. Meng Jie simplifies segmentation model of spindle with transition matrix method, and obtains first order vibration mode and spindle natural frequency with the method of finite element, which is basically consistent with the calculating result of transition matrix [8].…”

Section: Introductionmentioning

confidence: 94%

Dynamics Modeling and Simulation Analysis for Wood High-speed Motorized Spindle

Zhang¹,

Wang²,

Zhang³

et al. 2016

IJSIP

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Section: Introductionmentioning

confidence: 94%

Dynamics Modeling and Simulation Analysis for Wood High-speed Motorized Spindle

Zhang¹,

Wang²,

Zhang³

et al. 2016

IJSIP

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“…Figure 3 shows a motorized high-speed spindle using spring force to preload the spindle bearings. Most high-speed spindles are designed for high rotational speed in rotations per minute (RPM) and high simultaneous axes feeds for light cutting tool load applications [7,8]. A piezoelectric actuator has been placed behind the spindle to maintain proper bearing loading.…”

Section: Thermal Displacement Modeling Of Spindlementioning

confidence: 99%

“…Although a good spindle design with proper bearing preload is widely accepted, but the long working hour and high-spindle speed will cause thermal growth and rapidly increase the loading of bearings by centrifugal force [7][8][9]; the higher speed of spindle, the higher centrifugal force will be. Figure 1 illustrates a motorized spindle structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal growth measurement and compensation for integrated spindles

Hsieh¹,

Chen²,

Chang³

et al. 2012

Int J Adv Manuf Technol

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The errors which affect the processing tolerance of a machine tool are due to the built-in volumetric errors in the machine tool structure and also the thermal displacement of the machine tools during its cutting. In this paper, a dualdisplacement meter compensation system is developed. The new model has a better tolerance control than the singledisplacement compensation meter method; also, it has a great potential for saving a machine's warm-up time as well as enhancing productivity. A dual-displacement meter is designed to detect the variation of spindle thermal growth and a differential amplifier is applied which ensure a precise output signal tolerance of spindle thermal growth. The unstable signal which is an effect of flatness tolerance of spindle surface is then omitted. Finally, the spindle thermal growth compensations are successfully reduced. It meets the requirement of high-speed machining and high-precision machining application.

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“…As the FEM (finite element method) has become an essential solution technique in many areas of engineering concerned static and dynamic process, the FEM is utilized in the design of motorized spindle bearing system [4]. The static and dynamic characteristics, the thermal characteristics, and the centrifugal-force induced characteristic variations of motorized spindle bearing system were analyzed by using FEM [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of High-Speed Motorized Spindle Based on ANSYS

Liu¹

2011

TOMEJ

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This paper presents a method to investigate the characteristics of a high-speed motorized spindle system. The geometric quality of high-precision parts is highly dependent on the dynamic performance of the entire machining system, which is determined by the interrelated dynamics of machine tool mechanical structure and cutting process. This performance is of great importance in advanced, high-precision manufacturing processes. The state-of-the-art in machine tool main spindle units is focus on motorized spindle units for high-speed and high performance cutting. This paper taking the high-speed milling motorized spindle of CX8075 produced by Anyang Xinsheng Machine Tool Co. Ltd. as an example, a finite element model of the high-speed motorized spindle is derived and presented. The model takes into account bearing support contact interface, which is established by spring-damper element COMBIN 14. Furthermore, the static analysis, modal analysis, harmonic response analysis and thermal analysis were done by means of ANSYS commercial software. The results show that the maximum rotating speed of the motorized spindle is far smaller than the natural resonance region speed, and the static stiffness of the spindle can meet the requirements of design. The static and dynamic characteristics of the motorized spindle accord with the requirements of high-speed machining. The thermal deformation of spindle is 6.56µm, it is too small to affect the precision of the spindle. The results illustrate the rationality of the spindle structural design.

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Centrifugal force induced dynamics of a motorized high-speed spindle

Cited by 51 publications

References 16 publications

Dynamics Modeling and Simulation Analysis for Wood High-speed Motorized Spindle

Dynamics Modeling and Simulation Analysis for Wood High-speed Motorized Spindle

Thermal growth measurement and compensation for integrated spindles

Finite Element Analysis of High-Speed Motorized Spindle Based on ANSYS

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