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研究生:李東昇
研究生(外文):Tung-Sheng Li
論文名稱:空間凸輪滾子槽加工路徑生成之研究
論文名稱(外文):The Study of Tool-path Generation for a Spatial Cam’s Roller Guide
指導教授:賴元隆
指導教授(外文):Yuan-Lung Lai
學位類別:碩士
校院名稱:大葉大學
系所名稱:車輛工程學系碩士班
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:2007
畢業學年度:95
語文別:中文
論文頁數:113
中文關鍵詞:圓柱凸輪加工路徑電腦輔助製造
外文關鍵詞:Cylindrical CamTool PathCAM
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本研究主要目的是使用小於滾子槽之銑削刀具取代等徑銑削刀具,進行空間凸輪之加工製造。除了要有效解決生產線上之製造加工問題外,還可以降低刀具成本及提高生產效率。本論文並且利用電腦輔助製造之技術,針對空間凸輪小於滾子槽之加工技術建立自主性之製造技術。
本研究內容包括:曲線精度分割、滾子槽等徑刀具之數值加工路徑生成及小尺寸標準刀具之數值加工路徑生成。求取空間凸輪數值加工路徑須要展開二維平面進行分析計算,然後再經由轉換成機台座標,即可獲得數值加工路徑程式碼。在求取小尺寸標準刀具之加工路徑中,利用偏置理論進行分析計算,得到左、右兩側加工路徑之座標值,並確保小徑加工刀具在每一個加工點上,要位在等徑加工刀具之切削範圍內。
根據研究內容,本論文撰寫完整之空間凸輪數值加工路徑電腦輔助系統。然後利用多軸NC模擬銑削軟體,進行逆向模擬實際空間凸輪銑削情形。其模擬結果均符合在等徑加工刀具之運動範圍內。本研究除了提供空間凸輪加工製造技術外,更可縮短加工時間及降低製造成本,並且結合電腦輔助製造技術與業界實務製造經驗,建立完整加工製程模式。
The purpose of this study was to use milling tool smaller than the roller guide to replace same diameter with the guide-way width milling tool in the processing and manufacturing of spatial cams. In addition to effectively solve processing and manufacturing problems on the production line, this approach could also reduce the cost of milling tool and enhance the production efficiency. This study also applied computer aided manufacturing (CAM) to create a holonic manufacturing technique for spatial cams smaller than the roller guide.
The research contents included: precision of curve is cut apart, NC tool path generation of same diameter with the guide-way width milling tool, and NC tool path generation of small-sized standard milling tool. To derive the NC tool path of spatial cams, a 2-dimensional analysis was required. By converting the figures into machine coordinates, the program codes of the NC tool path could be obtained. As for the tool path of small-sized standard milling tool, the offset theory was applied in the analysis and estimation. The coordinates of the two sides of the tool path were estimated to ensure that every processing point of the small-sized milling tool is located within the cutting range of same diameter with the guide-way width milling tool.
According to the research content, a complete computer aided system for NC tool path of spatial cams was compiled. The multi-axis NC simulated milling software was later used to perform reverse simulation of practical milling of spatial cams. The simulation result was compliant with the motion range of same diameter with the guide-way width milling tool. In addition to providing a spatial cam processing and manufacturing technique which could shorten the processing time and manufacturing cost, this study also integrated CAM and practical manufacturing experiences to establish a complete processing model.
封面內頁
簽名頁
授權書………………………………………………………….... iii
中文摘要……………………………………………………...…. iv
英文摘要……………………………………………………….... v
誌謝…………………………………………………………….... vii
目錄…………………………………………………………….... vii
圖目錄………………………………………………………….... x
表目錄………………………………………………………….... xiii

第一章 緒論…………………………………………………….. 1
1.1 研究動機…………………………………………… 1
1.2 研究目的…………………………………………… 2
1.3 文獻回顧…………………………………………… 2
1.4 研究步驟…………………………………………… 7
1.5 論文架構…………………………………………… 9
第二章 凸輪基本理論…………………………………………... 10
2.1 空間凸輪簡介……………………………………… 10
2.2 運動曲線圖之定義……………………………….... 11
2.3 運動曲線特徵值…………………………………… 13
2.4 運動曲線之種類…………………………………… 14
2.4.1使用符號說明……………………………….. 15
2.4.2簡諧曲線…………………………………….. 15
2.4.3擺線曲線………………………………..…… 16
2.4.4修正梯形曲線……………………………….. 17
2.4.5修正正弦曲線………………………………... 20
2.4.6修正等速曲線……………………………….. 22
2.4.7多項式曲線………………………………...... 24
2.4.8 SHP-50………………………………............. 27
2.4.9雙諧合曲線………………………………...... 28
2.4.10等速度曲線……………………………….... 29
2.4.11等加速曲線……………………………….... 30
第三章 等徑標準刀具之數值加工路徑生成………………… 32
3.1 等徑標準刀具之數值加工路徑簡介……………… 32
3.2 加工機結構與分析……………………………… 33
3.3 圓柱曲線展開平面……………………………… 35
3.4 曲線精度分割……………………………………… 36
3.5 等徑刀具之加工路徑生成………………………… 39
3.6 轉換機械座標……………………………………… 45
第四章 小尺寸標準刀具之數值加工路徑生成……………… 48
4.1 數值加工碼解析…………………………………… 48
4.2 座標轉換…………………………………………… 49
4.3 小尺寸標準刀具之偏置………………………… 50
4.4 小尺寸標準刀具之加工路徑生成……………… 53
4.5 轉換數值加工碼…………………………………… 57
4.6 結果分析與討論…………………………………… 58
第五章 電腦輔助製造系統建構……………………………… 67
5.1 Visual Studio.Net 2003簡介…………………… 67
5.2 等徑標準刀具數值加工路徑生成之程式介面…... 68
5.3 小尺寸標準刀具數值加工路徑生成之程式介面... 70
5.4 實際舉例…………………………………………… 72
第六章 結論…………………………………………………… 82
參考文獻………………………………………………………… 85
附錄A 等徑刀具數值加工程序流程圖……………………….. 91
附錄B 小尺寸刀具數值加工程序流程圖…………………….. 92
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