【正文】 based on the known conditions and the processing of parts of the concrete structure, Process analysis, Machine determine portfolio allocation pattern and structure of the program, the choice of cutting parameters to determine the cutting force, cutting torque, Cutting tool of power and durability, choiceoriented institutions, spindle types, the first floating cards and power ponents, pleted design. According design of cutting consumption and spindle location, developed spindle box Transmission line, Application optimization layout gear, identified transmission parameters, design of the shaft structure, gears, bearings and other related ponents strength check, the identification of the axis configuration program and various technical parameters, choose the other parts, as far as possible, use standard parts, the lower the manufacturing cost. Machine structure to ensure that the bination of reasonable, safe and reliable, and easy maintenance use. Key words: unit machine tool ,cylinder body of diesel engine , headstock. 基于三維的柴油機氣缸體三面鉆削組合機床總體及后 主軸箱設(shè)計 2 目錄 1前言 ............................................................................................................................. 3 2 總體設(shè)計 .................................................................................................................... 5 總體方案論證 ........................................................................................................ 5 加工對象工藝性的分析 ...................................................................................... 5 機床配置型式的選擇 .......................................................................................... 5 定位基準的選擇 .................................................................................................. 5 確定切削用量及選擇刀具 .................................................................................... 5 選擇切削用量 ...................................................................................................... 6 計算切削力、切削扭矩及切削功率 .................................................................. 8 選擇刀具結(jié)構(gòu) ...................................................................................................... 9 組合機床總體設(shè)計 — “三 圖一卡” .................................................................... 9 被加工零件工序圖 .............................................................................................. 9 加工示意圖 ........................................................................................................ 10 機床聯(lián)系尺寸圖 ................................................................................................ 11 機床生產(chǎn)率計算卡 ............................................................................................ 14 夾具輪廓尺寸的確定 .......................................................................................... 19 3 組合機床后主軸箱設(shè)計 .......................................................................................... 20 繪制后主軸箱設(shè)計原始依據(jù)圖 .......................................................................... 20 主軸結(jié)構(gòu)型式的選擇及動力計算 ...................................................................... 21 主軸結(jié)構(gòu)型式的選擇 ........................................................................................ 21 主軸直徑和齒輪模數(shù)的初步確定 .................................................................... 21 主軸箱動力計算 ................................................................................................ 22 主軸箱傳動系統(tǒng)的設(shè)計與計算 .......................................................................... 22 計算驅(qū)動軸、主軸的坐標尺寸 ........................................................................ 22 擬訂主軸箱傳動路線 ........................................................................................ 22 傳動軸的位置和轉(zhuǎn)速及齒輪齒數(shù) .................................................................... 23 主軸箱中傳動軸坐標的計算及傳動軸直徑的確定 .......................................... 28 傳動軸坐標的計算 ............................................................................................ 28 傳動軸軸徑的確定 ............................................................................................ 29 軸的強度校核 ...................................................................................................... 29 齒輪校核計算 ...................................................................................................... 32 主軸箱中傳動軸坐標檢查圖的繪制 ................................................................... 34 4三維建模 ................................................................................................................... 35 建模軟件簡介 ....................................................................................................... 35 建模過程 ............................................................................................................... 36 5結(jié)論 ........................................................................................................................... 39 參 考 文 獻 ................................................................................................................ 40 致 謝 ...................................................................................................................... 41 附 錄 ...................................................................................................................... 42 畢業(yè)設(shè)計說明書 3 1 前言 本次設(shè)計的課題是 基于三維的柴油機汽缸體三面鉆削組合機床總體及后 主箱設(shè)計， 水箱面鉆 11個孔，其中有五個φ 孔，深 18；四個φ 孔，深 22；一個φ 的孔，通孔；一個φ 孔，通孔；油底殼面鉆 21 個孔其中有十六個φ 孔，深 17；一個φ 孔，深 66；四個φ 13 孔，通孔。 該課題來源于鹽城市江動集團 。本人的設(shè)計分工是總體設(shè)計和后 主軸箱的設(shè)計， 左主軸箱、 右主軸箱和夾 具部分的設(shè)計由同組其他同學擔任。雖然主軸箱零件的標準化程度高，使設(shè)計工作量有所減少，設(shè)計周期大為縮短，但在主軸箱設(shè)計過程中，在保證加工精度的前提下，如何綜合考慮生產(chǎn)率、經(jīng)濟性和勞動條件等因素，還有一定的難度。目前，組合機床主要用于平面加工和孔加工兩類工序。隨著綜合自動化的發(fā)展，其工藝范圍正擴大到車外圓、行星銑削、拉削、推削、磨削、珩磨及拋光、沖壓等工序。 組合機床在汽車、拖拉機、柴油機、電機、儀器儀表、軍工及縫紉機、自行車等輕工行業(yè)大批大量生產(chǎn)中已經(jīng)獲得廣泛的應用；一些中小批量生產(chǎn)是企業(yè)，如機床、機車、工程制造業(yè)中 也已推廣應用。 本次畢業(yè)設(shè)計具體的 課題是 基于三維柴油機氣缸體 三面 鉆削 組合機床 總體及 后 主軸箱設(shè)計。根據(jù)柴油機 氣缸體 的結(jié)構(gòu)特點、加工部位、尺寸精度、表面粗糙度及生產(chǎn)率等要求，