【正文】 圖2 車削加工的傳動原理圖精密車床主軸箱及變速箱系統(tǒng)設(shè)計(jì)63．運(yùn)動設(shè)計(jì)根據(jù)機(jī)床的規(guī)格、用途和常用的切削用量，以及與同類型機(jī)床的類別分析，確定機(jī)床主運(yùn)動的極限轉(zhuǎn)速、主軸轉(zhuǎn)速的合理分布，從而確定主運(yùn)動傳動系統(tǒng)的公比和級數(shù)。 功能原理設(shè)計(jì)畫出車削加工的運(yùn)動功能圖，寫出車削加工的運(yùn)動功能結(jié)構(gòu)式。(2)刀具材料：高速鋼或硬質(zhì)合金。 操作性能要求1）具有皮帶輪卸荷裝置2）手動操縱雙向摩擦片離合器實(shí)現(xiàn)主軸的正反轉(zhuǎn)及停止運(yùn)動要求3）主軸的變速由變速手柄完成(1)機(jī)床主參數(shù)：D max=248。它囊括了理論力學(xué)，材料力學(xué)，機(jī)械原理，機(jī)械設(shè)計(jì)，機(jī)械制造裝備設(shè)計(jì)等許多機(jī)械學(xué)科的專業(yè)基礎(chǔ)知識，因此稱之為專業(yè)課程設(shè)計(jì)。本次課程設(shè)計(jì)包括CM6132車床傳動設(shè)計(jì)，動力計(jì)算，結(jié)構(gòu)設(shè)計(jì)以及主軸校核等內(nèi)容，其中還有A0大圖紙的CM6132車床主傳動的裝配圖。精密車床主軸箱及變速箱系統(tǒng)設(shè)計(jì)4本次課程設(shè)計(jì)任務(wù)是CM6132車床主傳動設(shè)計(jì)。精密車床主軸箱及變速箱系統(tǒng)設(shè)計(jì)1目錄緒論 ......................................11．概述 ...................................5 ........................................................................................................5 ............................................................................................................5 操作性能要求 ................................................................................................................................6 ...................6 ........................................................................................................................................6 ..........................................................................................................63．運(yùn)動設(shè)計(jì) ...............................7 ................................................................................................................................7 ..............................................................9???????? .............................................................10???????? ..............................................................11 主電動機(jī)的選擇 ..........................................................................................................................12 ..........................................................................................................................14 主變速方案擬定 .........................................................................14 擬定變速結(jié)構(gòu)式 .........................................................................14 ..........................................................................15 驗(yàn)算變速結(jié)構(gòu)式 .........................................................................16精密車床主軸箱及變速箱系統(tǒng)設(shè)計(jì)2 ..................................................................................................................................17 齒輪齒數(shù)的估算 ..........................................................................................................................20 主軸轉(zhuǎn)速誤差 ..............................................................................................................................23 ................................26 ..........................................................................................................................26 ......................................................................................................................26 帶輪的設(shè)計(jì) ..................................................................................................................................27 ......................................................................................................................30 ..........................................................................................................................33 ..........................................................................................................................36 ................................................................................36 的確定和軸承的選擇 .....................................360L ......................................................................375. 結(jié)構(gòu)設(shè)計(jì) ...............................38 ..........................................................................................................................39 ..................................................................................................40 I軸的設(shè)計(jì) ..................................................................................42 II軸的設(shè)計(jì) ..................................................................................42 III軸的設(shè)計(jì) ................................................................................42 帶輪軸的設(shè)計(jì) ............................................................................42 Ⅳ軸的設(shè)計(jì) ................................................................................43 ..................................................................................43 主軸組件設(shè)計(jì) ............................................................................43精密車床主軸箱及變速箱系統(tǒng)設(shè)計(jì)3 ..................................................................................................................44 ......................................................................................................................44 潤滑與密封 .................................................................................................................................45 其他問題 ..........................................................