【正文】 too. Some domestic and international famous numerical control lathes and systematic manufacturing panies of numerical control have all introduced relevant new concepts and protons of a machine in the past two years, if in EMO2020 exhibition, Cyber Production Center that the pany exhibits of mountain rugged campstool gram in Japan (Mazak) (intellectual central production control unit, abbreviated as CPC)。s needs more and more already. For this reason, studying and making a kind of new CNC system standard ISO14649 (STEPNC) in the world, its purpose is to offer a kind of neutral mechanism not depending on the concrete system, can describe the unified data model in cycle of whole life of the products, thus realize the whole manufacture process, standardization of and even each industrial field product information. The appearance of STEPNC may be a revolution of the technological field of the numerical control, on the development and even the whole manufacturing industry of numerical control technology, will exert a farreaching influence. First of all, STEPNC puts forward a kind of brandnew manufacture idea, in the traditional manufacture idea, NC processes the procedures to all concentrate on individual puter. Under the new standard, NC procedure can be dispersed on Inter, this is exactly a direction of open , worked development of numerical control technology. Secondly, STEPNC numerical control system can also reduce and process the drawing (about 75%), process the procedure to work out the time (about 35%) and process the time (about 50%) greatly. At present, AmericanEuropean countries pay much attention to the research of STEPNC, Europe initiates IMS plan () of STEPNC. 20 CAD/CAM/CAPP/CNC users, manufacturers and academic organizations from Europe and Japan participated in this plan. STEP Tools Company of . is a developer of the data interchange software of manufacturing industry in the global range, he has already developed the super model (Super Model ) which accuses of information exchange of machine tooling by counting, its goal is to describe all processing courses with the unified norm. Such new data interchange form has already been verified in allocating the SIEMENS, FIDIA and European OSACANC numerical control at present. References： [1]胡占齊、董長雙、常興 . Numerical Control Technology .武漢理工大學出版社 ,2020，234~246 數控技術的發(fā)展 數控技術是用數字信息對機械運動和工作過程進行控制的技術，數控裝備是以數控技術為代表的新技術對傳統(tǒng)制造產業(yè)和新興制造業(yè)的滲透形成的機電一體化產品，即所謂的數字化裝備，其技術范圍覆蓋很多領域： (1)機械制造技術；(2)信息處理、加工、傳輸技術； (3)自動控制技術； (4)伺服驅動技術； (5)傳感器技術； (6)軟件技 術等。高速、高精加工技術可極大地提高效率，提高產品的質量 和檔次，縮短生產周期和提高市場競爭能力。這些都對加工裝備提出了高速、高精和高柔性的要求。加工一 個薄壁飛機零件，只用 30min，而同樣的零件在一般高速銑床加工需 3h，在普通銑床加工需 8h；德國 DMG 公司的雙主軸車床的主軸速度及加速度分別達120200r/mm 和 1g。 五軸聯動加工和復合加工機床快速發(fā)展 采用 5 軸聯動對三維曲面零件的加工，可用刀具最佳幾何形狀進行切削，不僅光潔度高，而且效率也大幅度提高。因此促進了復合主軸頭類型 5 軸聯動機床和復合加工機床（含 5 面加工機床）的發(fā)展。 為解決傳統(tǒng)的數控系統(tǒng)封閉性和數控應用軟件的產業(yè)化生產存在的問題。目前開放式數控系統(tǒng)的體系結構規(guī)范、通信規(guī)范、配置規(guī)范、運行平臺、數控系統(tǒng)功能庫以及數控系統(tǒng)功能軟件開發(fā)工具等是當前研究的核心。 重視新技術標準、規(guī)范的建立 關于數控系統(tǒng)設計開發(fā)規(guī)范 如前所述，開放式數控系統(tǒng)有更好的通用性、柔性、適應性、 擴展性，美國、歐共體和日本等國紛紛實施戰(zhàn)略發(fā)展計劃，并進行開放式體系結構數控系統(tǒng)規(guī)范 (OMAC、 OSACA、 OSEC)的研究和制定，世界 3 個最大的經濟體在短期內進行了幾乎相同的科學計劃和規(guī)范的制定，預示了數控技術的一個新的變革時期的來臨。為此，國際上正在研究和制定一種新的 CNC 系統(tǒng)標準 ISO14649（ STEP－ NC)，其目的是提供一種不依賴于具體系統(tǒng)的中性機制，能夠描述產品整個生命周期內的統(tǒng)一數據模型，從而實現整個制造過程，乃至各個工業(yè)領域產品信息的標準化 STEPNC 的出現可能是數控技術領域的一次革命，對于數控技術的發(fā)展乃至整個制造業(yè)，將產生深遠的影響。 目前，歐美國家非常重視 STEPNC 的研究，歐洲發(fā)起了 STEPNC 的 IMS 計劃(～ )。 參考文獻 [1]胡占齊、董長雙、常興 . Numerical Control Technology .武漢理工大學出版社 ,2020，234~246