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研究生:廖明毅
研究生(外文):Liao Ming -Yi
論文名稱:以DBB量測及校正五軸工具機之幾何誤差
論文名稱(外文):Using DBB for measuring and calibrating gemetric errors of 5-axis CNC machine tools
指導教授:雷衛台
指導教授(外文):Lei Wei-Tai
學位類別:碩士
校院名稱:國立清華大學
系所名稱:動力機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:80
中文關鍵詞:雙球桿五軸工具機幾何誤差誤差模型齊性座標轉換安裝誤差
外文關鍵詞:DBB5-axis machine toolgeomatric errorerror modelHTM
相關次數:
  • 被引用被引用:27
  • 點閱點閱:1344
  • 評分評分:
  • 下載下載:317
  • 收藏至我的研究室書目清單書目收藏:1
為提高五軸工具機之加工精度,即須解析機器誤差來源並加以改善。在不考慮熱因素下,一般靜態誤差主要來自幾何誤差方面,其中包括運動誤差與安裝誤差。因此本論文使用一標準量具:雙球桿量測儀(Double Ball Bar,DBB)搭配所創造之特殊五軸同動量測路徑,進行五軸工具機之幾何誤差量測。並針對幾何誤差中之不可量測的安裝誤差,建立五軸DBB誤差模型並推導DBB總成誤差向量進行誤差參數估測。模擬結果顯示:參數之估測誤差小於1%,證實可利用DBB進行五軸工具機之幾何誤差量測與誤差參數校正。此五軸DBB量測裝置為五軸工具機誤差量測提供了最簡單、快速有效的方法。
摘要 I
目錄 II
符號表 IV
圖目錄 V
表目錄 VI
1簡介 1
2文獻回顧 3
2.1量測裝置 3
2.2幾何誤差 3
2.3估測原理 3
2.4 Probe-ball 3D量測裝置 5
2.5研究目的 7
3機構座標轉換 8
3.1齊性座標轉換 8
3.2五軸機構轉換 9
4五軸DBB量測之誤差模型 12
4.1幾何誤差模型 12
4.1.1運動誤差 12
4.1.2五軸機構之幾何誤差模型 14
4.2 DBB量測誤差模型 22
4.2.1 DBB量測誤差 22
4.2.2總成誤差向量 25
5量測方法 30
5.1 DBB量測系統 30
5.2工件座標下之量測路徑規劃 33
5.2.1 Ct路徑 33
5.2.2 At路徑 34
5.2.3 Fn路徑 35
5.3機器軸座標內量測路徑規劃 37
5.3.1中央座標系統 37
5.3.2主從驅動路徑 39
5.4量測路徑模擬結果 41
5.4.1量測路徑之五軸同動 41
5.4.2誤差模擬 46
5.4.3誤差模擬結論 46
6誤差參數估測 50
6.1基本原理 50
6.2簡化之誤差模型 52
6.3誤差量測 59
6.4估測程序與結果分析 61
6.4.1估算流程 61
6.4.2模擬結果分析 63
7結論與未來發展 66
參考文獻 67
附錄A 五軸銑床之各軸運動誤差量測值 69
附錄B 誤差估測相關向量與矩陣 73
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