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目 錄 1 前言..............................................................1 1.1 總體設(shè)計(jì).........................................................1 1.2 左主軸箱設(shè)計(jì)....................................................1 1.3 發(fā)展?fàn)顩r及涉及內(nèi)容..............................................1 1.4 本課題擬解決的問題..............................................1 1.5 解決方案及預(yù)期效果..............................................2 1.5.1 解決方案......................................................2 1.5.2 預(yù)期效果.......................................................2 2 方案論證..........................................................3 2.1 組合機(jī)床工藝方案的制定..........................................3 2.1.1 確定機(jī)床完成工藝時(shí)的一些限制..................................3 2.2 確定切削用量及選擇刀具..........................................3 2.2.1 選擇切削用量..............................................3 2.2.2 對(duì)左側(cè)面上 4 個(gè)孔的切削用量的選擇...............................4 2.2.3 對(duì)后面上 1 個(gè)孔的切削用量的選擇. .................................5 2.3 計(jì)算切削力、切削扭矩及切削功率. ..................................5 2.4 選擇刀具結(jié)構(gòu).....................................................9 3 組合機(jī)床總體設(shè)計(jì)—三圖一卡.......................................10 3.1 被加工零件工序圖................................................10 3.2 加工示意圖...................................................10 3.2.1 導(dǎo)向結(jié)構(gòu)的選擇...............................................11 3.2.2 動(dòng)力箱型號(hào)的選擇...............................................11 3.2.3 動(dòng)力部件工作循環(huán)及行程的確定..................................11 3.3 機(jī)床尺寸聯(lián)系總圖...........................................12 3.3.1 選擇動(dòng)力部件...........................................12 3.3.2 動(dòng)力箱型號(hào)的選擇..............................................13 3.3.3 確定夾具輪廓尺寸.............................................13 3.3.4 確定中間底座尺寸..............................................14 3.3.5 確定主軸箱輪廓尺寸............................................14 3.4 機(jī)床生產(chǎn)率計(jì)算卡................................................15 4 左主軸箱設(shè)計(jì)....................................................17 4.1 左主軸箱箱體零件的設(shè)計(jì).........................................17 4.1.1 箱體的選用..........................................17 4.2 確定傳動(dòng)軸的位置和齒輪齒數(shù).....................................17 4.3 坐標(biāo)計(jì)算.......................................................19 4.4 主軸等有關(guān)零件的設(shè)計(jì)...........................................22 4.4.1 主軸直徑的確定................................................22 4.4.2 主軸結(jié)構(gòu)的選定................................................22 4.4.3 傳動(dòng)軸的選定..........................................23 4.5 主軸箱坐標(biāo)計(jì)算、繪制坐標(biāo)檢查圖.........................23 4.5.1 計(jì)算傳動(dòng)軸的坐標(biāo)..............................................23 4.5.2 繪制坐標(biāo)檢查圖.............................................24 4.6 齒輪的校核及參數(shù)的確定.........................................25 4.6.1 齒輪的校核...........................................25 4.6.1.1 齒輪的材料，精度和齒數(shù)的選擇. ................................25 4.6.1.2 設(shè)計(jì)計(jì)算....................................................25 4.7 箱體或前蓋補(bǔ)充加工圖...........................................27 5 設(shè)計(jì)總結(jié).........................................................29 參考文獻(xiàn)...........................................................30 致 謝...........................................................31 附 錄...........................................................32