臺式數控龍門雕刻機TLNC-X-2030工作臺及Y軸傳動部件設計含4張CAD圖,臺式,數控,龍門,雕刻,TLNC,2030,工作臺,傳動,部件,設計,CAD 數控加工技術發(fā)展概述 1數控編程及其發(fā)展 ???數控編程是目前CAD/CAPP/CAM系統中最能明顯發(fā)揮效益的環(huán)節(jié)之一，其在實現設計加工自動化、提高加工精度和加工質量、縮短產品研制周期等方面發(fā)揮著重要作用。在諸如航空工業(yè)、汽車工業(yè)等領域有著大量的應用。由于生產實際的強烈需求，國內外都對數控編程技術進行了廣泛的研究，并取得了豐碩成果。下面就對數控編程及其發(fā)展作一些介紹。 2數控編程的基本概念 ???? 數控編程是從零件圖紙到獲得數控加工程序的全過程。它的主要任務是計算加工走刀中的刀位點（cutterlocationpoint簡稱CL點）。刀位點一般取為刀具軸線與刀具表面的交點，多軸加工中還要給出刀軸矢量。 3數控編程技術的發(fā)展概況 ? ???為了解決數控加工中的程序編制問題，50年代，MIT設計了一種專門用于機械零件數控加工程序編制的語言，稱為APT（AutomaticallyProgrammedTool）。其后，APT幾經發(fā)展，形成了諸如APTII、APTIII（立體切削用）、APT（算法改進，增加多坐標曲面加工編程功能）、APTAC（Advancedcontouring）(增加切削數據庫管理系統)和APT/SS（SculpturedSurface）(增加雕塑曲面加工編程功能)等先進版。 采用APT語言編制數控程序具有程序簡練，走刀控制靈活等優(yōu)點，使數控加工編程從面向機床指令的“匯編語言”級，上升到面向幾何元素.APT仍有許多不便之處：采用語言定義零件幾何形狀，難以描述復雜的幾何形狀，缺乏幾何直觀性；缺少對零件形狀、刀具運動軌跡的直觀圖形顯示和刀具軌跡的驗證手段；難以和CAD數據庫和CAPP系統有效連接；不容易作到高度的自動化，集成化。 針對APT語言的缺點，1978年，法國達索飛機公司開始開發(fā)集三維設計、分析、NC加工一體化的系統，稱為為CATIA。隨后很快出現了像EUCLID，UGII，INTERGRAPH，Pro/Engineering，MasterCAM及NPU/GNCP等系統，這些系統都有效的解決了幾何造型、零件幾何形狀的顯示，交互設計、修改及刀具軌跡生成，走刀過程的仿真顯示、驗證等問題，推動了CAD和CAM向一體化方向發(fā)展。到了80年代，在CAD/CAM一體化概念的基礎上，逐步形成了計算機集成制造系統（CIMS）及并行工程（CE）的概念。目前，為了適應CIMS及CE發(fā)展的需要，數控編程系統正向集成化和智能化方向發(fā)展。 集成化方面，以開發(fā)符合STEPStandardfortheExchangeofProductModelData標準的參數化特征造型系統為主，目前已進行了大量卓有成效的工作，是國內外開發(fā)的熱點；在智能化方面，工作剛剛開始，還有待我們去努力。  英文翻譯 Numerical control process technology development outline 1 numerical control programming and development The numerical control programming is in the present CAD/CAPP/CAM system most can display one of obviously benefit links, its is realizing design processing automation, enhancement working accuracy and processing quality, aspects and so on reduction product development cycle is playing the influential role. In such as domains and so on aviation industry, automobile industry have the massive applications. Because produces the actual intense demand, domestic and foreign has conducted the extensive research to the numerical control programming technology, and has obtained the rich fruit. Below makes some introductions to the numerical control programming and the development. 2 numerical control programming basic concept The numerical control programming is to obtains the numerical control processing program from the components blueprint the entire process. Its primary mission is calculates the processing to feed the knife position spot (cutterlocationpoint to be called the CL spot). The knife position spot takes generally for the tool axis and the cutting tool surface point of intersection, in the multiple spindle processing must give the cutter bar vector. 3 numerical control programming technology development survey In order to solve in the numerical control processing programming problem, in the 50s, MIT designed one kind to use in the machine parts numerical control processing program establishment specially the language, was called APT (AutomaticallyProgrammedTool). After that APT several pass through the development, has formed such as APTII, APTIII (three-dimensional cutting with), APT (algorithm improvement, increases multi-coordinate surface processing programming function), APTAC (Advancedcontouring) (to increase cutting database management system) and APT/SS (SculpturedSurface) (increases sculpture surface processing programming function) and so on advanced version. Uses the APT language establishment numerical control procedure to have the procedure to be succinct, feeds the control nimbly and so on merits, causes the numerical control processing programming from to face the engine bed instruction “the assembly language” the level, rose to faces geometric element .APT still to have many discomforts: Uses the language definition components geometrical shape, describes the complex geometrical shape with difficulty, lacks geometry intuitive; Lacks to the components shape, the cutting tool path's visual picture demonstration and tool path's confirmation method; With difficulty connects effectively with the CAD database and the CAPP system; It is not easy to do the high automation, the integration. In view of the APT language's shortcoming, in 1978, the French Dassault Airplane Company started to develop the collection three dimensional design, the analysis, the NC processing integration system, was called is CATIA. Afterward appeared very quickly has looked like systems and so on EUCLID, UGII, INTERGRAPH, Pro/Engineering, MasterCAM and NPU/GNCP, these system effective solution geometric modeling, the components geometrical shape's demonstration, alternately has designed, the revision and the tool path production, fed questions and so on process simulation demonstration, confirmation, impelled CAD and CAM develops to the integrated direction. To the 80s, in the CAD/CAM integration concept's foundation, has formed the computer integration manufacture system gradually (CIMS) and the parallel projects (CE) the concept. At present, to adapt CIMS and the CE need to develop, the numerical control programming system is developing to the integration and the intellectualized direction. The integrated aspect, develops conforms to the STEPStandardfortheExchangeofProductModelData standard parametrization characteristic modelling system primarily, has carried on the massive fruitful work at present, is the domestic and foreign development hot spot; In the intellectualized aspect, the work just started, but also waits for us going diligently.