【正文】 er Control) programme carried out on the NC machine, it directly affects machining quality and manufacture , lots of CAD/CAM are stagnated the CAD, the apply efficiency of the CAM is , the key to the question is problem of Post processing or the opacity of a few CAMcutter location source files, which cause the developing Post processing programme is difficulty on technology,disposition is plex and the price is high. This paper explicitly introduces the math theory and developing process of post processing technology, and analyzes the function characters of Pro/E, also including the developing platform of post processing in Pro/E, pares the differences of the CNC programming instructions in the two main systems of Germany SIEMENS and Japan FANUC, also analyzes the relationship between the NC program and the cutter location file in the corresponding parameters, and then develops to meet the requirements of the Post processors, which can be used to generate CNC machining programs identified. Finally,establishing a numerical control processing module model, using the Pro/E NC simulation system es with Vericut for simulation, outputting the NC program. In the same time, it also provides the theoretical support and experience for different structures and models of Post processing machining center. Key words: CNC machine tool。 最后， 建立 數(shù)控加工模塊模型，利用 Pro/E自帶的數(shù)控加工仿真系統(tǒng) Vericut進行模擬仿真，輸出數(shù)控程序。 然而 ， 目前國內(nèi)許多 CAD/CAM 軟件還停留在 CAD 的 層面上，對 CAM 模塊的 技術掌握及 應用效率 并不是很 高，其中非常關鍵的原因就是后置處理問題或者是 CAM 模塊的刀位點數(shù)據(jù) 文件 即 CL文件 （ Cutter Location Source File)不完全透明，使得后置 處理程序開發(fā)技術難度大、配置復雜且價格昂貴。二軸聯(lián)動數(shù)控裱花機自動編程系統(tǒng)設計 I 目 錄 摘 要 ................................................................................................................................III 關鍵詞 ................................................................................................................................III Abstract............................................................................................................................. IV Key words ......................................................................................................................... IV 1 緒論 ............................................................................................................................... 1 選題的背景 ......................................................................................................... 1 數(shù)控技術研究與發(fā)展狀況 ................................................................................. 1 國外的研究動態(tài)及發(fā)展趨勢 ................................................................... 1 國內(nèi)的研究動態(tài)及發(fā)展趨勢 ................................................................... 3 課題研究的意義 ................................................................................................. 3 課題的技術路線及主要研究內(nèi)容 ..................................................................... 4 技術路線 ................................................................................................... 4 主要研究內(nèi)容 ........................................................................................... 4 2 后置處理技術 ............................................................................................................... 4 后置處理系統(tǒng)原理 ............................................................................................. 4 后置處理過程分析 ............................................................................................. 5 后置處理的數(shù)學理論 ......................................................................................... 6 坐標平移 ................................................................................................... 6 比例變換 ................................................................................................... 6 坐標旋轉(zhuǎn) ................................................................................................... 7 3 后置處理器實現(xiàn)平臺及數(shù)控系統(tǒng)分析 ....................................................................... 9 Pro/E 軟件概述 ................................................................................................... 9 Pro/NC 功能分析 ...................................................................................... 9 Pro/NC 刀位點文件分析 ........................................................................ 11 Pro/NC 后置處理功能分析 .................................................................... 12 數(shù)控系統(tǒng)代碼特點分析 ................................................................................... 15 數(shù)控系統(tǒng)文件頭尾格式 ......................................................................... 15 準備功能 G 代碼 ..................................................................................... 16 輔助功能 M 代碼 .................................................................................... 16 固定循環(huán)特性 ......................................................................................... 16 4 基于 Pro/E NC 的蛋糕裱花后置處理 ....................................................................... 17 概述 .................................................................................................................... 17 數(shù)控加工操作與演示 ....................................................................................... 18 蛋糕整體制作 ......................................................................................... 18 蛋糕局部裱花 ......................................................................................... 22 蛋糕刻字操作 ......................................................................................... 24 后置處理器的創(chuàng)建 ........................................................................................... 25 數(shù)控程序文件輸出 ........................................................................................... 28 華中農(nóng)業(yè)大學 2021 屆本科畢業(yè)論文 II 5 總結(jié)與討論 .............................................................................................................