【正文】 HREE DIMENSIONAL MODELLING AND DESIGN ABSTRACT Numerical control (NC) lathe is an automatic lathe that installed numerical program control system. It transmits numerical signal to control the machine tool’s movement and machining process by servo system, eventually realizes that it automatically pletes to processing of parts. With NC’s biggest characteristics that other control pare, Discharge movement and program mutually independent. It collects the advantages of automatic machine tools, precise machine tools and general purpose machine tools, having the characters of highefficiency, highquality and highflexibility. The calculator is set up the mold technique to turn the parameter that the machine design to apply in the design and researches that the number control the tool machine, with the quantity of the exaltation tool machine product, the renewal that speeds number to control the tool machine changes the generation. On the foundation that the traditional machine design, the strong engineering of Pro/ e of the usage function sets up the entity model that the mold software builds up number to control the tool machine principal axis parts, and imitate the assemble process, lord of the tool machine principal axis parts to spread to move, change the knife the sport etc. process, make design is before make the kind machine, discovering to design the process in time in the latent blemish, provide the good condition for the design of the next move. KEYWORDS: Computer modelling， Parametrization， Numerical control machine， Main axle part， Assembly process， Master drive， The knife movement trading 數(shù)控機(jī)床三維建模與設(shè)計(jì) III 目 錄 摘 要 .................................................................... I ABSTRACT ................................................................ II 1 緒論 .................................................................... 1 數(shù)控機(jī)床的產(chǎn)生與發(fā)展 .............................................. 1 數(shù)控機(jī)床的產(chǎn)生與發(fā)展 ........................................ 1 數(shù)控機(jī)床的技術(shù)發(fā)展趨勢(shì) ...................................... 1 設(shè)計(jì)的主要任務(wù) .................................................... 2 2 主傳動(dòng)設(shè)計(jì) ............................................................. 3 驅(qū)動(dòng)源的選擇 ...................................................... 3 轉(zhuǎn)速圖的擬定 ...................................................... 3 傳動(dòng)軸的估算 ...................................................... 4 齒輪模數(shù)的估算 .................................................... 6 3 主軸箱展開圖的設(shè)計(jì) ..................................................... 7 各零件結(jié)構(gòu)和尺寸設(shè)計(jì) .............................................. 7 設(shè)計(jì)的內(nèi)容和步驟 ............................................. 7 有關(guān)零部件結(jié)構(gòu)和尺寸的確定 .................................. 7 各軸結(jié)構(gòu)的設(shè)計(jì) .............................................. 8 主軸組件的剛度和剛度損失的計(jì)算： ............................ 9 裝配圖的圖紙?jiān)O(shè)計(jì) ................................................. 12 標(biāo)注尺寸 ................................................... 12 編寫技術(shù)要求 ............................................... 12 列出零件明細(xì)表及標(biāo)題欄 ..................................... 13 4 主軸部件的實(shí)體建模及運(yùn)動(dòng)模擬 .......................................... 14 零部件的實(shí)體建模 ................................................. 14 各軸的實(shí)體建模 ............................................. 14 軸承的實(shí)體建模 ............................................. 16 箱體的實(shí)體建模 ............................................. 18 齒輪的實(shí)體建模 ............................................. 18 主軸部件的裝配 ................................................... 21 主軸部件的裝配 ............................................. 21 主軸部件裝配的動(dòng)態(tài)模擬 ..................................... 21 主軸部件的運(yùn)動(dòng)演示 ............................................... 22 主傳動(dòng)的運(yùn)動(dòng)演示 ........................................... 23 陜西科技大學(xué)畢業(yè)設(shè)計(jì)說(shuō)明書 IV 5 零件工作圖設(shè)計(jì) ........................................................ 24 零件工作圖設(shè)計(jì)的基本要求 ......................................... 24 零件工作圖設(shè)計(jì)的基本要求 ................................... 24 主要 零件工作圖的設(shè)計(jì)要點(diǎn) ......................................... 24 軸類零件工作圖的設(shè)計(jì)要點(diǎn) ................................... 24 齒輪零件工作圖的設(shè)計(jì)要點(diǎn) ................................... 25 機(jī)體零件工作圖的設(shè)計(jì)要點(diǎn) ................................... 25 主要零件工作圖的繪制完成 ......................................... 26 6 設(shè)計(jì)的總結(jié) ............................................................ 27 致 謝 ................................................................... 28 參 考 文 獻(xiàn) ............................................................. 29 數(shù)控機(jī)床三維建模與設(shè)計(jì) 1 數(shù)控機(jī)床三維建模與設(shè)計(jì) 1 1 緒論 數(shù)控機(jī)床的產(chǎn)生與發(fā)展 數(shù)控機(jī)床的產(chǎn)生與發(fā)展 微電子技術(shù)，自動(dòng)信息處理，數(shù)據(jù)處理以及電子計(jì)算機(jī)的發(fā)展，給自動(dòng)化帶來(lái)了新的概念，推動(dòng)了機(jī)械制造自動(dòng)化的發(fā)展。 計(jì)算機(jī)建模技術(shù)將機(jī)械設(shè)計(jì)的參數(shù)化應(yīng)用于數(shù)控機(jī)床的設(shè)計(jì)與研究，以提高機(jī)床產(chǎn)品的質(zhì)量，加快數(shù)控機(jī)