【正文】
隨著制造設(shè)備的數(shù)控化率不斷提高,數(shù)控加工技術(shù)在我國得到日益廣泛的使用,在模具行業(yè),掌握數(shù)控技術(shù)與否及加工過程中的數(shù)控化率的高低已成為企業(yè)是否具有競爭力的象征。其過程如下圖所示:【零件信息】→【CAD系統(tǒng)造型】→【CAM系統(tǒng)生成加工代碼】→【數(shù)控機床】→【零件】(1)對圖紙進(jìn)行分析,確定需要數(shù)控加工的地方;(2)利用圖形軟件(PRO/E UG)造型;(3)根據(jù)加工條件,選擇合適的加工參數(shù),生成加工軌跡(包括粗加工,半精加工,精加工軌跡);(4)軌跡仿真檢驗;(5)生成G代碼(6)傳給機床實現(xiàn)加工;數(shù)控加工,也稱之為NC(Numerical Control)加工,是以數(shù)值與符號構(gòu)成的信息,控制機床實現(xiàn)自動運轉(zhuǎn)。主要分為以下兩方面:機床本身技術(shù)參數(shù):數(shù)控機床主要的技術(shù)參數(shù)由下面幾個:工作臺:零件加工工作平臺,尺寸大小應(yīng)根據(jù)加工零件的大小進(jìn)行選用T形槽:工作臺上的T形槽主要用于零件的裝夾,其中T形槽數(shù)、槽寬、相互間距,需要根據(jù)加工工件的符號進(jìn)行規(guī)定。多坐標(biāo)機床是在三坐標(biāo)的基礎(chǔ)上,通過增加分度頭或者回轉(zhuǎn)工作臺,成為4坐標(biāo)或者5坐標(biāo)機床(甚至多坐標(biāo)機床)。主要分為立式和臥式兩種。數(shù)控技術(shù)是以數(shù)字的形式實現(xiàn)自動加工控制得一門技術(shù),其指令得數(shù)字和文字編碼得方式,記錄在控制介質(zhì)上,經(jīng)過計算機得處理后,對機床各種動作得順序位移量及速度實現(xiàn)自動控制。成人高等學(xué)歷教育畢 業(yè) 論 文軸類零件加工工藝分析及數(shù)控編程 辦學(xué)單位: 教 學(xué) 二 部 班 級: 數(shù)控技術(shù)2009級??茦I(yè)余 學(xué) 生: 胡昊(10561096233901010)指導(dǎo)教師: 劉曉珍 工程師 提交日期: 2011 年 11 月 15 日目 錄中 文 摘 要………………………………………………………………………………1Abstract ……………………………………………………………………………………1 1 數(shù)控機床的簡介、應(yīng)用和發(fā)展…………………………………………………… …………2 …………………………………………………………………………2…………………………………………………………………………………2 數(shù)控加工的特點…………………………………………………………………………3 數(shù)控系統(tǒng)…………………………………………………………………………………3………………………42 零件的工藝分析………………………………………………………………………………5 ……………………………………………………………………………6………………………………………………………7(90186。目前,隨著國內(nèi)數(shù)控機床用量得劇增。關(guān)鍵詞:球形工具、數(shù)控車床、夾具、程序編制Key words: Its manufacturing automation technology in advanced manufacturing technology was an important part of the core technology is the numerical control technology. Is the application of puter numerical control technology, automatic control and automatic inspection was the product of hightech precision machinery. It was there and was brought enormous benefits, technology has attracted world wide attention with industry. Now, with the very sharp increase in domestic consumption of CNC machine tools, needed to train a large number of the master of modern CNC machine programming. Have applied to operate and maintain highlevel technical personnel. CNC technology is in the form of digital processing to achieve automatic control with a technology, the instruction was too digital and text encoding method, recorded in the control media, were processed through the puter, the machine was the order of displacement of movement and speed to achieve automatic c