外文翻譯—數(shù)控技術(shù)發(fā)展趨勢(存儲(chǔ)版)
【正文】 而開發(fā)用戶界面的工作量極大，用戶界面成為計(jì)算機(jī)軟件研制中最困難的部分之一。 (4)內(nèi)裝高性能 PLC 數(shù)控系統(tǒng)內(nèi)裝高性能 PLC控制模塊，可直接用梯形圖或高級(jí)語言編程，具有 直觀的在線調(diào)試和在線幫助功能。通過提高集成電路密度、減少互連長度和數(shù)量來降低產(chǎn)品價(jià)格，改進(jìn)性能，減小組件尺寸，提高系統(tǒng)的可靠性。加工過程中采用開放式通用型實(shí)時(shí)動(dòng)態(tài)全閉環(huán)控制模式，易于將計(jì)算機(jī)實(shí)時(shí)智能技術(shù)、網(wǎng)絡(luò)技術(shù)、多媒體技術(shù)、CAD/CAM、伺服控制、自適應(yīng)控制、動(dòng)態(tài)數(shù)據(jù)管理及動(dòng)態(tài)刀具補(bǔ)償、動(dòng)態(tài)仿真等高新技術(shù)融于一體，構(gòu)成嚴(yán)密的制造過程閉環(huán)控制體 系，從而實(shí)現(xiàn)集成化、智能化、網(wǎng)絡(luò)化。通過機(jī)床聯(lián)網(wǎng)，可在任何一臺(tái)機(jī)床上對其它機(jī)床進(jìn)行編程、設(shè)定、操作、運(yùn)行，不同機(jī)床的畫面可同時(shí)顯示在每一臺(tái)機(jī)床的屏幕上。 體系結(jié)構(gòu)的發(fā)展 (1)集成化 采用高度集成化 CPU、 RISC芯片和大規(guī)?？删幊碳?成電路 FPGA、EPLD、 CPLD以及專用集成電路 ASIC芯片，可提高數(shù)控系統(tǒng)的集成度和軟硬件運(yùn)行速度?？梢暬夹g(shù)與虛擬環(huán)境技術(shù)相結(jié)合，進(jìn)一步拓寬了應(yīng)用領(lǐng)域，如無圖紙?jiān)O(shè)計(jì)、虛擬樣機(jī)技術(shù)等，這對縮短產(chǎn)品設(shè)計(jì)周期、提高產(chǎn)品質(zhì)量、降低產(chǎn)品成本具有重要意義?？茖W(xué)技術(shù)發(fā)展到今天，實(shí)時(shí)系統(tǒng)和人工智 能相互結(jié)合，人工智能正向著具有實(shí)時(shí)響應(yīng)的、更現(xiàn)實(shí)的領(lǐng)域發(fā)展，而實(shí)時(shí)系統(tǒng)也朝著具有智能行為的、更加復(fù)雜的應(yīng)用發(fā)展，由此產(chǎn)生了實(shí)時(shí)智能控制這一新的領(lǐng)域。 2 數(shù)控技術(shù)發(fā)展趨勢 性能發(fā)展方向 (1)高速高精高效化速度、精度和效率是機(jī)械制造技術(shù)的關(guān)鍵性能指標(biāo)。在現(xiàn)代制造系統(tǒng)中，數(shù)控技術(shù)是關(guān)鍵技術(shù)，它集微電子、計(jì)算機(jī)、信息處理、自動(dòng)檢測、自動(dòng)控制等高新技術(shù)于一體，具有高精度、高效率、柔性自動(dòng)化等特點(diǎn)，對制造業(yè)實(shí)現(xiàn)柔性自動(dòng)化、集成化、智能化起著舉足輕重的作用。s CNC system for traditional closed architecture, but only as a nonintelligent CNC machine controller. Process variables based on experience in the form of prefixed parameters, processing procedures before the actual processing by hand or through CAD / CAM and automatic programming system prepared. CAD / CAM and CNC have no feedback control link, the entire manufacturing process CNC is a closed ringopening implementing agencies. In a plex and changing environment under the conditions of processing tool in the process of position, workpiece material, spindle speed, feed rate, tool path, cutting depth, step, allowance and other processing parameters, not at the scene circumstances under external interference and realtime dynamic random factors, not by random amendment feedback control link CAD / CAM settings volume, in turn, affect the work of CNC machining efficiency and product quality. Clearly, the traditional fixed CNC system that controlled mode and closed architecture, limiting the CNC to the development of more intelligent control variables, can no longer meet the increasingly plex manufacturing process, therefore, the CNC technology in the potential for change inevitable. 2 CNC technology development trends Performance development direction (1) highspeed highprecision efficient speed, accuracy and efficiency of machinery manufacturing technology is the key performance indicators. As a result of the highspeed CPU chips, RISC chip, as well as multiCPU control system with highresolution detector of the absolute exchange digital servo system, taken at the same time improve the machine dynamic and static characteristics of effective measures, the highspeed highprecision machine has been efficient greatly enhanced. (2) Flexible includes two aspects: CNC system itself flexibility, NC system is modular in design, functional coverage, can be cut and strong, and easy to meet the needs of different users。 CAD/CAM和 CNC之間沒有反饋控制環(huán)節(jié)，整個(gè)制造過程中 CNC只是一個(gè)封閉式的開環(huán)執(zhí)行機(jī)構(gòu)。數(shù)控技術(shù)軸，西門子 880系統(tǒng)控制軸數(shù)可達(dá) 24軸。當(dāng)前 INTERNET、虛擬現(xiàn)實(shí)、科學(xué)計(jì)算可視化及多媒體等技術(shù)也對用戶界面提出了更高要求。編程工具中包含用于車床銑床的標(biāo)準(zhǔn) PLC用戶程序?qū)嵗?，用戶可在?biāo)準(zhǔn) PLC用戶程序基礎(chǔ)上進(jìn)行編輯修改，從而方便地建立自己的應(yīng)用程序。 (2)模塊化 硬件模塊化易于實(shí)現(xiàn)數(shù)控系統(tǒng)的集成化和標(biāo)準(zhǔn)化。 。 (3)網(wǎng)絡(luò)化 機(jī)床聯(lián)網(wǎng)可進(jìn)行遠(yuǎn)程控制和無人化操作。在數(shù)控技術(shù)領(lǐng)域，應(yīng)用多媒體技術(shù)可以做到信息處理綜合化、智能化，在實(shí)時(shí)監(jiān)控系統(tǒng)和生產(chǎn)現(xiàn)場設(shè)備的故障診斷、生產(chǎn)過程參數(shù)監(jiān)測等方面有著重大的應(yīng)用價(jià)值。 (2)科學(xué)計(jì)算可視化 科學(xué)計(jì)算可視化可用于高效處理
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