【正文】 一種機(jī)床上用某一種加工方法就能完成的，而是需要經(jīng)過(guò)一定的工藝過(guò)程。 關(guān)鍵詞： 機(jī)械制造 通用夾具 專用夾具 鉆床夾具 齒輪泵 北華航天工業(yè)學(xué)院畢業(yè)論文 II Abstract At the machine manufacture machinefinishing, the examination, the assembly, the welding and heat treatment and so on in the cold hot technological process, are using the massive jigs, with installs the processing object, enable it to hold the correct position, guarantees the ponents and the product quality, and enhancement production efficiency. Processes the work piece when the engine bed, in order to guarantee the processing precision, must correctly install the work piece, causes its relative engine bed cutting forming movement and the cutting tool holds the correct position, this process and so on the gravity is not destroyed the work piece already the correct position which decides, but also must certainly exert to it clamps to be called ”the installment”. Uses for on the engine bed to plete the work piece to install the duty the important craft equipment, is in each kind of jig widely applies ”the engine bed jig”. Engine bed jig type very many, among the use scope broadest general jig, the specification size are many has standardized, and has especially the factory to carry on the production. But widely uses in the volume production, specially unit clamp which serves for some work piece processing working procedure, then needs various factories dependently to design the manufacture according to the work piece processing craft. Therefore, the unit clamp design the manufacture according to the work piece processing craft. Therefore, the unit clamp design id an important production preparatory work. each is engaged in the processing craft the work clothes design personnel, all should grasp the elementary knowledge which the related jig design Keywords: machinery mon fixture special fixture drilling fixture 北華航天工業(yè)學(xué)院畢業(yè)論文 目 錄 摘 要???????????????????????????????????Ⅰ Abstract?????????????????????????????????Ⅱ ????????????????????????? ?????????? 1 機(jī)械加工工藝規(guī)程制訂????????????????????????? 1 生產(chǎn)過(guò)程與機(jī)械加工工藝過(guò)程 ??????????????????? 1 機(jī)械加工工藝規(guī)程的種類???????????????????????? 1 制訂機(jī)械加工工藝規(guī)程的原始資料 ???????????????????? 2 ???????????????????????????????? 3 ?????????????????????????????? 3 零件的工藝分析???????????????????????????? 3 ，確定毛坯尺寸，設(shè)計(jì)毛坯圖???????????????????? 4 確定各加工表面的總余量公差?????????????????????? 4 ，制定工藝路線???????????????????????? 5 機(jī)械加工工藝設(shè)計(jì)??????????????????????????? 5 基面的選擇 .??????????????????????????? 5 粗基面 的選擇 .?????????????????????????? 5 精基面的選擇 .?????????????????????????? 5 制定機(jī)械加工工藝路線 .???????????????????????? 5 5. 選擇加工設(shè)備及刀具、夾具、量具 .????????????????????? 7 選擇加工設(shè)備與工藝設(shè)備 .??????????????????????? 7 選擇機(jī)床，根據(jù)不同的工序選擇機(jī)床 .???????????????? 7 選擇夾具 .???????????????????????????? 7 選擇刀具，根據(jù)不同的工序選擇刀具 .???????????????? 7 選擇量具 .???????????????????????????? 7 確定工序尺寸????????????????????????????? 8 面的加工???????????????????????????? 8 孔的加工???????????????????????????? 8 ????? ????????????????????? 9 工序 1 切削用量及基本時(shí)間的確定，??????????????????? 9 工序 2 切削用量及基本時(shí)間的確定，??????????????????? 9 工序 3 切削用量及基本時(shí)間的確定??????????????????? 10 工序 4 切削用量及基本時(shí)間的確定??????????????????? 11 工序 5 切削用量及基本時(shí)間的確定??????????????????? 11 工序 6 切削用量及基本時(shí)間的確定??? ???????????????? 12 工序 7 切削用量及基本時(shí)間的確定??????????????????? 12 工序 8 切削用量及基本時(shí)間的確定??????????????????? 13 工序 9 切削用量及基本時(shí)間的確定??????????????????? 13 工序 10切削用量及基本時(shí)間的確定?????????????????? 13 工序 11切削用量及基本時(shí)間的確定?????????????????? 14北華航天工業(yè)學(xué)院畢業(yè)論文 工序 12切削用量及基本時(shí)間的確定?? ???????????????? 14 工序 13切削用量及基本時(shí)間的確定?????????????????? 15 工序 14切削用量及基本時(shí)間的確定?????????????????? 15 工序 15切削用量及基本時(shí)間的確定?????????????????? 15 工序 16切削用量及基本時(shí)間的確定?????????????????? 16 工序 17切削用量及基本時(shí)間的確定?????????????????? 16 工序 18切削用量及基本時(shí)間的確定 ?????????????????? 16 工序 19切削用量及基本時(shí)間的確定?????????????????? 17 工序 20切削用量及基本時(shí)間的確定?????????????????? 17 .???????????????????????????????? 18 定位基準(zhǔn)的選擇??????????????????????????? 18 切削力和夾緊力計(jì)算????????????????????????? 18 定位誤差分析???????????? ???????????????? 19 夾具設(shè)計(jì)及操作的簡(jiǎn)要說(shuō)明?????????????????????? 19 .?????????????????????????????????? 20 致謝 .??????????????????????????????????? 21 參考文獻(xiàn) .????????????????????????????????? 22 北華航天工業(yè)學(xué)院畢業(yè)論文 1 第 1 章 緒論 機(jī)械制造業(yè)是國(guó)民經(jīng)濟(jì)的支柱產(chǎn)業(yè)，現(xiàn)代制造業(yè)正在改變著人們的生產(chǎn)方式、生活方式、經(jīng)營(yíng)管理模式乃至社會(huì) 的組織結(jié)構(gòu)和文化。 機(jī)床夾具的種類很多，其中，使用范圍最廣的通用夾具，規(guī)格尺寸多已標(biāo)準(zhǔn)化，并且有專業(yè)的工廠進(jìn)行生產(chǎn)，而廣泛用于批量生產(chǎn)，專為某工件加工工序服務(wù)的專用夾具，則需要各制造廠根據(jù) 工件加工工藝自行設(shè)計(jì)制造。定位和夾緊的全過(guò)程稱為“安裝”。 在機(jī)床上加工工 件時(shí)，為了保證加工精度，必須正確安裝工件，使其相對(duì)機(jī)床切削成形運(yùn)動(dòng)和刀具占有正確的位置，這一過(guò)程稱為“定位”。本人同意北華航天工業(yè)學(xué)院有權(quán)保存畢業(yè)設(shè)計(jì)（論文）的印刷本和電子版，并提供目錄檢索與閱覽服務(wù)；可以采用影印、縮印、數(shù)字 化或其它復(fù)制手段保存論文；在不以營(yíng)利為目的的前提下，可以公布非涉密畢業(yè)設(shè)計(jì)（論文）的部分或全部?jī)?nèi)容。 本畢業(yè)設(shè)計(jì)（論文）成果歸北華航天工業(yè)學(xué)院所有。對(duì)