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http://dx.doi.org/10.14775/ksmpe.2014.13.5.107

A Study on the Static/Dynamic Stability and the Fatigue Damages for the Worm Gear in the B-Axis Rotary Table of a Mill Turret  

Kim, Chae-Sil (School of Mechanical Eng., Changwon National UNIV.)
Kang, Seung-Hee (VIDEC, Changwon National UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.13, no.5, 2014 , pp. 107-115 More about this Journal
Abstract
Highly functional mill turrets have been developed and continuously improved to shorten the manufacturing time and enable multiple uses. Among these, a mill turret with B-axis rotary table was developed. The B-axis rotary table should be evaluated for structural integrity. Moreover, its worm and worm gear for transmitting power should be able to endure fatigue damage. Therefore, this article presents a structural analysis of this type of B-axis rotary table and confirms its static stability by comparing the stress results to the allowable stress levels. Next, the dynamic stability of the rotary table was investigated via a mode analysis and a harmonic analysis in a range determined by the results of a modal analysis. Finally, a worm gear set, the main part that drives the rotary table, is analyzed for fatigue and to estimate its lifetime. The results of the fatigue analysis allowed a prediction of the life of the worm gear set. The analytical results show that the B-axis rotary table has good structural integrity.
Keywords
Mill Turret Unit; Rotary Table; Fatigue Damage Analysis; Worm Gear; Static/Dynamic Stability;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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