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Study on an Interactive Web-based Computer-Aided Surface Machining System 林星晨、佘振華

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Study on an Interactive Web-based Computer-Aided Surface Machining System 林星晨、佘振華

E-mail: 9222199@mail.dyu.edu.tw

ABSTRACT

With the rapidly advancing computer technology, the use of computer aided manufacturing has been inevitably the trends of time.

As the Internet prevails, there are more and more companies providing the global web-based services. This thesis integrates the process planning, manufacturing database and multi-axis postprocessor to establish an interactive web-based computer aided surface machining system which can be operated from web browsers on the Internet. This study aims at the integration and application of the process planning and manufacturing database as well as the web-based surface machining system. The user can upload the single B-Spline surface with IGES format. The manufacturing operation sheet can then be generated automatically according to the surface analysis and manufacturing database, and can be used as the basis to obtain the associated cutter location (CL) file.

Moreover, the CL file can be converted into NC program for various machine tools’ configurations by the postprocessor and verified by the solid cutting simulation software. The developed system is operating on the Internet so that the core program and database of the process development technology can be centralized to manage and maintain in the network server. The user can operate this system with the latest development resources. Therefore, the client user can reduce the investment and promote working efficiency.

Keywords : Process Planning ; Database ; Postprocessor ; Internet

Table of Contents

封面內頁 簽名頁 博碩士論文授權書 iii 中文摘要 iv 英文摘要 v 誌謝 vii 目錄 viii 圖目錄 xi 表目錄 xiv 第一章 緒論 1 1.1 研究 動機與目的 1 1.2 文獻回顧 2 1.2.1 製程規劃之相關研究 2 1.2.2 後處理程式之相關研究 4 1.3 研究內容 5 1.4 本文架構 6 第二 章 系統架構及技術 7 2.1 網際網路 7 2.1.1 網路發展 7 2.1.2 HTML 8 2.1.3 網站及伺服器 9 2.2 網路互動式介面 10 2.2.1 PERL簡介 11 2.2.2 C語言簡介 12 2.2.3 Java Script簡介 12 2.2.4 ISAPI簡介 13 2.3 加工資料庫 15 2.4 曲面製程規劃 17 2.4.1 曲 面來源 17 2.4.2 解讀IGES檔 18 2.4.3 B-Spline曲面 23 2.4.4 曲率分析 24 2.5 曲面加工系統 25 2.5.2 加工資料庫模組 26 2.5.3 製程規劃模組 27 2.5.4 刀具路徑產生模組 28 2.5.5 後處理模組 28 第三章 系統整合及實作 30 3.1 工具機選用模組 30 3.1.1 工 具機構型定義 30 3.1.2 工具機選用功能 31 3.2 加工資料庫 38 3.2.2 加工參數之計算 39 3.2.3 資料庫查詢介面 42 3.3 製程規劃 44 3.3.1 架構 44 3.3.2 製程規劃之程式流程 45 3.3.3 加工程序單 47 3.4 刀具路徑產生 54 3.5 後處理 56 3.6 互動式系統整合網 頁 59 第四章 結果與討論 62 4.1 範例實作 62 4.1.2 工具機選擇 65 4.1.3 執行製程規劃 67 4.1.4 加工程序單 67 4.1.5 產生刀具 路徑 70 4.1.6 執行後處理 70 4.1.7 實體模擬切削 72 4.2 討論 75 第五章 結論與展望 78 5.1 結論 78 5.2 展望 79 參考文獻 81 REFERENCES

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參考文獻

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