Spindle Static and Dynamic Characteristics Analysis of Precision CNC Turning Center

Guo, Chen; Bai, Li; Zheng, Bao Long; Pan, Yi Shan

doi:10.4028/www.scientific.net/amr.619.47

Cited by 2 publications

(2 citation statements)

References 8 publications

(7 reference statements)

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“…The maximum speed of the grinding shaft is 8000 rpm, so there is a need to avoid the range of the first two modes, but the required range of working speed is between 6000 rpm to 8000 rpm against the frequency range of 100 Hz to 135 Hz, which is in the 3rd mode. C. Guo et al [6] states that the maximum rotational speed of the tool cannot surpass 75 % of the critical speed. Moreover, from the modal analysis, it is substantiated that the critical speed for that mode is 23226.6 rpm, which is well beyond the operating speed range.…”

Section: Modal Analysismentioning

confidence: 99%

“…A. Anand and H. Roy [5] have computed the static stiffness and performed dynamic analysis on the optimized design of the spindle. C. Guo et al [6] have provided the study of static and modal analyses to measure the characteristics; static stiffness, natural frequency, and their shape modes and acquired the resonance-free structure of spindle. J. Feng et al [7] have performed the optimization of the came shaft grinding machine spindle structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Static and Dynamic Analysis of a Deep Hole Internal Grinding Shaft Tool

Ahmad¹,

Zhu²,

Anon³

et al. 2021

International Journal of Applied Engineering Research

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Cylindrical parts with deep holes and thin-wall structures are the backbone in aerospace, such as sleeves, actuators, and landing gears of aircraft. However, in precise, the precision machining of inner holes of cylindrical parts with small bores, large depth to diameter ratios (>7-8) is more problematic, which realized the significance of the grinding of such deep holes.In this article, an optimized structure of a deep hole internal grinding shaft tool is introduced. The vital structure of this grinding machine is the internal grinding shaft tool structure and one of the decisive factors distressing the surface grinding quality because of the length and complexity of the structure with a limited exterior dimension. First, the modal of the grinding shaft tool structure is designed in CREO-Parametric software. Then the designed modal is carried through the static and dynamic analyses employing ANSYS FEA software to authenticate and assure the structural stiffness and behavior to attain high precision machining of deep holes. In static analysis, various parameters such as materials of internal grinding shaft and various structural designs of the shaft took under research consideration. Next, the dynamic analysis has been performed against the optimized structure. Finally, harmonic analysis is performed to verify the internal grinding shaft tool design. Consequently, quite a few developments have been made in the structure and also provide a motorized spindle to segregate the effects of vibrations and forces on machining quality due to the driving mechanism.

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Section: Modal Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%