| Summary: | 碩士 === 建國科技大學 === 自動化工程系暨機電光系統研究所 === 98 === In this paper, power chucks for the strength of institutions to explore the issue, due to power chuck in high-speed rotation, the rotating centrifugal force to reduce the jaw of the gripping force, so in order to clamp the workpiece firmly to avoid the workpiece with high rotation abnormal radiation energy occurs, resulting in serious accidents, thus heightening operation of hydraulic oil pressure to chuck in the extreme conditions of use for normal, if the unexpected hit knives, parts of different shapes, sizes anomaly and clamping poor condition occurs, will result in power chuck damage resulting in stress concentration. Therefore in order to understand the power chuck in higher operation force, the stress distribution of power chuck, and thus to improve the stress concentration phenomenon. This paper attempts to use computer-assisted analysis software for power chuck the stress, strain and displacement of such analysis, by simulation results of the analysis prior to the original design to be amended or improved, ensuring a high operation force of power chuck when the role of safe manner. In addition to power chuck simulation results verify that the phenomenon of the stress concentration is consistent with the actual destruction of the case, while this paper has also proposed to improve the stress concentration of a variety of the best design.
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