【正文】 減輕勞動(dòng)強(qiáng)度，為新產(chǎn)品的研制和改型換代節(jié)省大量的費(fèi)用，提高企業(yè)產(chǎn)品的競爭力。隨著經(jīng)濟(jì)發(fā)展和科學(xué)的進(jìn)步，我國的數(shù)控機(jī)床方面的開發(fā)、研制、生產(chǎn)等將得到迅速發(fā)展。幾十年來，數(shù)控機(jī)床在品種、數(shù)量、加工范圍和加工精度等方面有了驚人的發(fā)展，隨著電子元件的發(fā)展，數(shù)控裝置經(jīng)歷了使用電子管、分立元件、集成電路的過程。而數(shù)控系統(tǒng)的指令是由程序員根據(jù)工件的材質(zhì)、加工要求、機(jī)床的特性和系統(tǒng)所規(guī)定的指令格式（數(shù)控語言或符號）編制的。 numerical simulation III 目 錄 第 1 章 緒論 ...................................................... 1 概述 ......................................................... 1 數(shù)控加工研究意義及現(xiàn)狀 ....................................... 1 數(shù)控加工發(fā)展趨勢 ............................................. 2 本文主要研究內(nèi)容 ............................................. 3 第 2 章 復(fù)合軸類零件的數(shù)控加工工藝分析 ................................................ 4 零件圖及工藝分析 ........................................................................................... 4 零件的材料、毛坯及熱處理 ........................................................................... 5 零件三維圖形的建立 ....................................................................................... 5 制定加工方 案、確定加工順序 ....................................................................... 7 定位基準(zhǔn)的選擇 ............................................................................................... 8 刀具及對刀的選擇 ............................................................................................ 9 正確選擇粗、精加工刀具 ...................................................................... 9 確定對刀方式及對刀點(diǎn) ........................................................................ 10 切削用量的選擇 ............................................................................................. 10 切削用量的確定 .................................................................................... 10 加工余量的確定 .................................................................................... 11 確定基本工時(shí) ................................................................................................. 11 夾具的設(shè)計(jì) ..................................................................................................... 17 零件裝夾的基本要求 ........................................................................... 17 夾具圖的設(shè)計(jì) ....................................................................................... 17 確定合理的裝夾方式 ........................................................................... 19 第 3 章 復(fù)合軸類零件 數(shù)控模擬加工 .......................................................... 20 圖形處理 .......................................................................................................... 20 坐標(biāo)處理 .......................................................................................................... 20 加工坯料 .......................................................................................................... 20 復(fù)合軸零件曲面粗加工 .................................................................................. 21 復(fù)合軸零件的精加工以及后處理 .................................................................. 24 第 4 章 編制數(shù)控加工程序單 .......................................................................... 25 編程技巧 ......................................................................................................... 25 編制數(shù)控加工程序 .......................................................................................... 25 第 5 章 結(jié) 論 ......................................................................................................... 27 IV 致 謝 ......................................................................................................................... 28 參考文獻(xiàn) .................................................................................................................... 29 畢業(yè)設(shè)計(jì)（論文）知識產(chǎn)權(quán)聲明 ....................................... 錯(cuò)誤 !未定義書簽。 用仿真軟件對程序的正確性進(jìn)行驗(yàn)證，寫出本次畢業(yè)設(shè)計(jì)總結(jié)。 數(shù)控加工工藝設(shè)計(jì)的主要任務(wù)是制訂加工工藝規(guī)程 ， 也是數(shù)控機(jī)床加工前的準(zhǔn)備工作。數(shù)控機(jī)床加工程序不僅要包括零件的工藝過程，而且還要包括切削用量、走刀路線、刀具尺寸以及機(jī)床的運(yùn)動(dòng)過程。 關(guān)鍵詞： 軸類配合零件；夾具設(shè)計(jì) ； 工藝分析；數(shù)控仿真 II The posite shaft parts of NC machining technology and programming Abstract NC machining process the design focuses on the posite shaft parts and NC programming. The main task of NC machining process design is to make the process of NC machine tool, but also the preparatory work before. CNC machining program not only process includes the parts, but also including the cutting parameters, tool path, cutting tool size and machining process. The design of NC machining process design and procedures for typical shaft with parts of the. Process design from the beginning of the part drawing, choose CNC equipment, parts of positioning and clamping mode is determined, the reasonable processing plan, dividing the NC machining process, determine the processing procedures, the reasonable selection of tool and tool, fixture design a processing steps, the final determination of machining allowance, finally draw process card, plete process card, and preparation of plete program. Using simulation software to verify the correctness of the program, write the graduation design summary. Keywords: shaft mating parts。 畢業(yè)設(shè)計(jì)（論文）獨(dú)創(chuàng)性聲明 .......................................................................... 31 附錄 1......................................................................................................................... 33 附錄 2......................................................................................................................... 38 V 1 緒論 1 第 1 章 緒論 概述 數(shù)控加工，就是泛指在數(shù)控機(jī)床上進(jìn)行零件加工的工藝過程。數(shù)控系統(tǒng)根據(jù)程序指令向伺服裝置和其它功能部件發(fā)出運(yùn)行或終斷信息來控制機(jī)床的各種運(yùn)動(dòng)。特別是使用了小型計(jì)算機(jī)和微處理機(jī)以來，數(shù)控機(jī)床的性能價(jià)格比日趨合理，可靠性日益提高 [3]。發(fā)展數(shù)控機(jī)床是當(dāng)前機(jī)械制造業(yè)技術(shù)改造的必由之路，是未來工廠自動(dòng)化的基礎(chǔ)。 數(shù)控技術(shù)技術(shù)的應(yīng)用不但給傳統(tǒng)行業(yè)帶來革命性的變換，伴隨著傳統(tǒng)行業(yè)的工業(yè)化，高精度，要效率，高質(zhì)量，競爭力，帶動(dòng)民生行業(yè)高歌猛進(jìn)，起著舉足輕重的地位。在現(xiàn)代制造系統(tǒng)中，數(shù)控技術(shù)是關(guān)鍵技術(shù)，由專用型封閉式開環(huán)控制模式向通用型開放式實(shí)時(shí)動(dòng)態(tài)全閉環(huán)控制模式發(fā)展。加工過程變量根據(jù)經(jīng)驗(yàn)以固定參數(shù)形式事先設(shè)定，加工程序在實(shí)際加工前用手