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數控專業(yè)外文翻譯----數控技術發(fā)展趨勢-數控設計(參考版)

2025-05-17 01:36本頁面
  

【正文】 應用 FPD平板顯示技術,可提高顯示器性能。在數控技術領域,應用多媒體技術可以做到信息處理綜合化、智能化,在實時監(jiān)控系統(tǒng)和生產現場設備的故障診斷、生產過程參數監(jiān)測等方面有著重大的應用價值。編程工具中包含用于車床銑床的標準 PLC用戶程序實例,用戶可在標準 PLC用戶程序基礎上進行編輯修改,從而方便地建立自己的應用程序。多種補償功能如間隙補償、垂直度補償、象限誤差補償、螺距和測量系統(tǒng)誤差補償、與速度相關的前饋補償、溫度補償、帶平滑接近和退出以及相反點計算的刀具半徑補償等。在數控技術領域,可視化技術可用于 CAD/CAM,如自動編程設計、參數自動設定、刀具補償和刀具管理數據的動態(tài)處理和顯示以及加工過程的可視化仿真演示等。 (2)科學計算可視化 科學計算可視化可用于高效 處理數據和解釋數據,使信息交流不再局限于用文字和語言表達,而可以直接使用圖形、圖像、動畫等可視信息。當前INTERNET、虛擬現實、科學計算可視化及多媒體等技術也對用戶界面提出了更高要求。 功能發(fā) 展方向 (1)用戶界面圖形化 用戶界面是數控系統(tǒng)與使用者之間的對話接口。在數控技術領域,實時智能控制的研究和應用正沿著幾個主要分支發(fā)展:自適應控制、模糊控制、神經網絡控制、專家控制、學習控制、前饋控制等。而人工智能則試圖用計算模型實現人類的各種智能行為。數控技術軸,西門子 880系統(tǒng)控制軸數可達 24軸。 (3)工藝復合性 和多軸化 以減少工序、輔助時間為主要目的的復合加工,正朝著多軸、多系列控制功能方向發(fā)展。由于采用了高速 CPU芯片、 RISC芯片、多 CPU控制系統(tǒng)以及帶高分辨率絕對式檢測元件的交流數字伺服系統(tǒng),同時采取了改善機床動態(tài)、靜態(tài)特性等有效措施,機床的高速高精高效化已大大提高。由此可見,傳統(tǒng) CNC系統(tǒng)的這種固定程序控制模式和封閉式體系結構,限制了 CNC向多變量智能化控制發(fā)展,已不適應日益復雜的制造過程,因此,對數控技術實行變革勢在必行。 CAD/CAM和 CNC之間沒有反饋控制環(huán)節(jié),整個制造過程中 CNC只是一個封閉式的開環(huán)執(zhí)行機構。 長期以來,我國的數控系統(tǒng)為傳統(tǒng)的封閉式體系結構, CNC只能作為非智能的機床運動控制器。目前,數控技術正在發(fā)生根本性變革,由專用型封閉式開環(huán)控制模式向通用型開放式實時動態(tài)全閉環(huán)控制模式發(fā)展。 Certainly, it is difficult finally to have the day to hold up head that there is no Chinese numerical control equipment of scale . In equipping researching and developing highgrade , precision and advancedly , should emphasize the production, learning and research and close bination of end user, regard obtaining, using, selling as the goal, tackle key problems according to the national will, in order to solve the needing badly of the country. The technology of numerical control, emphasized innovation, put emphasis on researching and developing technology and products with independent intellectual property right before the petition, establish the foundation for the numerical control industry of our country , sustainable development of the equipment manufacture and even the whole manufacturing industry. 附錄 2 數控技術發(fā)展趨勢 1 國內外數控系統(tǒng)發(fā)展概況 隨著計算機技術的高速發(fā)展,傳統(tǒng)的制造業(yè)開始了根本性變革,各工業(yè)發(fā)達國家投入巨資,對現代制造技術進行研究開發(fā),提出了全新的制造模式。 Secondly seen from security of national defence, the western developed country has classified all the highgrade , precision and advanced numerical control products as the strategic materials of the country, realize embargo and restriction to our country, Toshiba incident and Cox Report is the best illustration. Development tactics Proceed from the angles of the fundamental realities of the country of our country, regard the strategic demand of the country and market demand of the national economy as the direction, regard improving our country and making the prehensive petitive power of equipping industry and industrialization level as the goal, use the systematic method , be able to choose the support technology that the initial our country makes the key technology upgraded in development of equipping industry and supports the development of industrialization in 21st century of leading factor, the ability to supply the necessary technology realizes making the jump type development of the equipping industry as the content of research and development. Emphasize market demand is a direction, take terminal products of numerical control as the core , with the plete machine (Such as the numerical control lathe having a large capacity and a wide range, milling machine , high speed high precise highperformance numerical control lathe , model digitized machinery , key industry key equipment ,etc. ) drive numerical control development of industry. Solve the numerical control system and relevant functions part especially The dependability in (digitized servo system and electrical machinery , electric main shaft system of high speed and new attachment that equip ,etc. ) and production scale question. There are no products without high dependability of scale 。s question , at first seen from social safety, because manufacturing industry whether our country obtain employment most populous trade, the development of manufacturing industry not only can improve the people39。 It is not enough to analyze to technological application level and ability of numerical control of our country. . Pay close attention to numerical control industrialization many in the issue , consider numerical control industrialization little in the issue synthetically in terms of the systematic one , industry chain in terms of technology。 The research , formulation that relevant standards are normal lags behind. It is analyzed that the main reason for having disparity described above has the following several respect. the respect. Know to domestic numerical control industry process arduousness , plexity and longterm characteristic insufficiently。s own brand effect yet in domestic numerical control system, users have insufficient confidence. the ability of sustainable development, to petition numerical control research and development of technology, engineered ability weaker。 Dependability is not high, the mercialized intensity is insufficient。 Function part specialized level of production and form a plete set ability to be lower。t meet demands of highspeed development of the technology of modern numerical control 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 offering a kind of neutral mechanism not depending on the concrete system , can describe the unified data model in whole lifespan of the products , thus realize the whole manufacture process, and even the standardization of each industrial field product information. The appearance of STEPNC may be a revolution of the technical field of the numerical control, on development and even the whole manufacturing industry of the technology of numerical control , will exert a farreaching influence. First of all, STEPNC puts forward a kind of brandnew manufacture idea , i
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