臺灣博碩士論文加值系統

本論文的目的在於發展可用於微量切削的四軸向(X-Y-θx-θy)運動之撓性夾具。
首先由單支弱化元件產生平移與旋轉著手分析，再推廣分析其組合，如二支或四支結構件。利用無因次分析結合有限元素法及實驗規劃法，如RSM，建立統計數學模式，以分析各弱化參數對於結構弱化效應。再根據需要規格設計出適用的四軸夾具。為迎合夾具複雜性及易製性，且符合強度及加工需求，利用RP技術製出撓性夾具。經實驗證明，其在設計規格內可符合準線性條件，且可配合壓電致動器變動其撓性。經切削試驗證明，撓性程度對工件之表面精度具相當程度之影響。利用撓性夾具的工件表面粗度比使用剛性夾具者為佳，並且用以切削出曲線。實驗印證此四軸撓性夾具確可用於微量加工。

The purpose of the study is to develop a compliant fixture with four axis movement, X-Y-θx-θy , for micro-volume machining.
Firstly, a single weakened element for generating movement and rotation is selected and analyzed. Accordingly, the extension analysis to double and four element structures were made as it was the combination of single element. The dimensionless analysis method is combined with finite element analysis and experiment design method, as RSM were used to build a statistics model for studying the effect of weakened dimension on structure stiffness. Based on the model and specification requirements, the compliant fixture is designed and then is made by a prototyping method called FDM to meet the design for manufacturing and complexity of the fixture. Besides the stiffness and accuracy requirements were needed. The related experiments showed the stiffness behavior is quasi-linear within specification and the compliance can be changed according to the application of PZT actuator. The surface roughness of work piece was improved by using the compliant fixture.

目錄
摘要 I
ABSTRACT II
目錄 III
表目錄 V
圖目錄 VIII
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 2
1.3 研究動機與目的 4
1.4 論文架構 4
第二章 理論分析 6
2.1 撓性夾具靜態分析 6
2.2 有限元素分析 11
2.3 反應曲面法 13
2.4 積層式壓電材料 19
第三章 撓性夾具之設計與分析 24
3.1 壓電驅動微定位平台簡介 24
3.2 撓性夾具之設計 27
3.3 撓性弱化尺寸之分析與應用 31
3.4 撓性夾具系統之有限元素分析 50
第四章 實驗設備與流程 58
4.1 K值實驗設備、配置與流程 58
4.2 電壓與位移變化實驗設備、配置與流程 64
4.3 銑削加工實驗設備、配置與流程 71
第五章 結果與分析 77
5.1 K值實驗結果與分析 77
5.2 電壓與位移變化實驗結果與分析 86
5.3 銑削加工實驗結果與分析 100
第六章 結論與未來展望 105
6.1 結論 105
6.2 未來展望 106
參考文獻 107
附錄 110

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