隨著計算機技術的迅速發展,現代工程師在設計工作中已經基本用計算機取代傳統的手工設計,而且隨著三維軟件的出現,三維造型也開始被大量地運用于設計過程中。本課題為高壓開關殼體三維造型設計及數控編程。通過對高壓開關殼體圖紙進行分析,了解高壓開關殼體的工藝特點,包括材料、未注倒角等等,使用Unigraphics NX造型軟件進行殼體的三維造型,三維造型中涉及到不規則曲面的創建,是本次設計的一個難點。對高壓開關殼體進行數控加工工藝分析,根據工藝要求安排數控加工工序,在確定加工工序的過程中特別注意到圖紙對精度的要求。確定工序的定位夾緊方案,在該過程中正確地選擇定位基準。然后設計夾具,對夾具的要求有確保加工質量和一次性裝夾完成加工。最后進行數控加工程序的編制,編程過程中要注意刀具在走刀和快進過程中避免與毛坯表面其他特征和夾具發生碰撞。
關鍵詞:高壓開關殼體 UG 數控編程 工藝 夾具設計
Abstract
With the speedy development of the computer technology, the modern engineers have basically replaced the traditional handicraft design with computers, and as the three-dimensional software occurred, the 3-D modeling has begun to be of great use to apply to the designing process. This thesis is about the three-dimensional modeling design of a switch shell and the numerical control programming. By the analysis of the drawings of the high-pressure switch shell, it aims to know the properties of the technology and the three-dimensional modeling shelled by Unigraphics NX. In this thesis, the high-pressure switch shell is analyzed by the numerical control processing craft. Then the numerical control processing operations are arranged by the technology requests. After that, the scheme of the locating is fixed, and comes the design of the fixture tools, at last, the programming of the numerical control program is finished.
Keywords: High-pressure switch shell; UG; Numerical control programming; Technology; Fixture design.