渦卷式壓縮機為較新型之壓縮機種類，被廣泛使用於中小型空調系統。渦卷式壓縮機關鍵組件包含共軛之動渦卷與靜渦卷，兩渦卷體密合度影響壓縮機的工作效率，因此渦卷之加工精度要求高。為符合其精度要求及滿足產業製造之需求，本研究提出優化加工路徑之規劃，以提升渦卷之生產力。
於銑削製程中，直線切削指令與B-spline切削指令被普遍使用，兩種切削指令於相同資料量之下，B-spline切削指令具有較佳之擬合精度與加工表面品質。本研究考量上述兩種切削指令與機台半靜態(quasi-static)，即不考慮動態切削之誤差，使用格柵編碼器記錄機台循跡誤差，建立一套加工路徑前饋補償機制，包括循圓資料庫與加工路徑資料庫。兩種補償方法皆以資料庫資訊作為依據，於加工前預先修正加工路徑，減少機台循跡誤差，提升加工精度。前者適用於加工少量多樣之加工件，而後者則適用於生產量產型之加工件。

Scroll compressor is a relatively new type of compressor, and it’s widely used in small and medium-sized air-conditioning systems. The key components of scroll compressors include conjugate orbiting scrolls and fixed scrolls, and the performance of a scroll compressor relies on it geometric accuracy of scrolls. Therefore, the processing techniques relating to accuracy of scrolls must be concerned. In order to meet accuracy requirements and the need of efficiency for intelligent manufacturing, in this study favorite tool paths are proposed to enhance the productivity of the scroll.
In the milling process, linear cutting commands and B-spline cutting commands are commonly used. When the two cutting commands are under the same amount of data, the B-spline cutting commands have better fitting accuracy and processed surface quality. In this study, the two kinds of cutting commands and the quasi-static of the machine are considered, that is, the cutting process effects of the machine are not considered. The grid encoder is employed to record the tracking error of the machine and establish a set of feedforward compensation algorithms, including circular database and tool path database. The information of two databases are used to modify tool paths before processing, and the two compensation methods can reduce tracking error of machining and increase the contour accuracy of workpieces. The circular database is suitable for processing a small amount of workpieces, while the workpiece tool path database is suitable for the production of production type of workpieces.

論文審定書 i
摘要 ii
Abstract iii
目錄 iv
圖次 vi
表次 ix
第一章 緒論 1
1.1 前言 1
1.2 文獻探討 1
1.3 研究目的與方法 2
1.4 論文架構 3
第二章 渦卷加工介紹與B-spline 4
2.1 渦卷式壓縮機 4
2.2 渦卷件加工 5
2.3 加工品質探討 10
2.4 B-spline內插與近似擬合 11
2.5 漸開線 14
第三章 B-spline擬合渦卷加工路徑 16
3.1 等弦高取點內插與最小平方近似擬合 18
3.2 本論文取點方法之最小平方近似擬合 21
3.3 B-spline擬合結果與套裝軟體驗證比對 24
3.4 G01切削指令與B-spline切削指令實際加工比較 27
第四章 加工路徑資料庫補償 29
4.1 機台伺服循跡測試 30
4.2 循圓測試 31
4.3 循圓路徑補償與循圓資料庫建立 35
4.4 渦卷加工路徑驗證 41
4.5 循圓資料庫補償 45
4.6 加工路徑資料庫補償 48
4.7 實際加工例 50
第五章 結論 54
參考文獻 55

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