【正文】 ，會(huì)遇到夾具體定位端面和定位外圓交界處清根問(wèn)題。人們?cè)絹?lái)越認(rèn)識(shí)到，夾具與操作人員改進(jìn)工作及機(jī)床性能的提高有著密切的關(guān)系，所以對(duì)夾具引起了重視；第三階段表現(xiàn)為夾具與機(jī)床的結(jié)合，夾具作為機(jī)床的一部分，成為機(jī)械加工中不可缺少的工藝裝備。所以對(duì)機(jī)械的加工工藝及夾具設(shè)計(jì)具有十分重要的意義。因此，好的夾具設(shè)計(jì)可以提高產(chǎn)品勞動(dòng)生產(chǎn)率，保證和提高加工精度，降低生產(chǎn)成本等，還可以擴(kuò)大機(jī)床的使用范圍，從而使產(chǎn)品在保證精度的前提下提高效率、降低成本。機(jī)械加工工藝是實(shí)現(xiàn)產(chǎn)品設(shè)計(jì)，保證產(chǎn)品質(zhì)量、節(jié)約能源、降低成本的重要手段，是企業(yè)進(jìn)行生產(chǎn)準(zhǔn)備，計(jì)劃調(diào)度、加工操作、生產(chǎn)安全、技術(shù)檢測(cè)和健全勞動(dòng)組織的重要依據(jù)，也是企業(yè)上品種、上質(zhì)量、上水平，加速產(chǎn)品更新，提高經(jīng)濟(jì)效益的技術(shù)保證。整個(gè)加工過(guò)程均選用組合機(jī)床。主要加工工序安排是先以后鋼板彈簧吊耳大外圓端面互為基準(zhǔn)加工出端面，再以端面定位加工出工藝孔。并將孔與平面的加工明確劃分成粗加工和精加工階段以保證加工精度。由加工工藝原則可知，保證平面的加工精度要比保證孔的加工精度容易。后鋼板彈簧吊耳加工工藝及夾具設(shè)計(jì)摘 要本次設(shè)計(jì)是對(duì)后鋼板彈簧吊耳零件的加工工藝規(guī)程及一些工序的專用夾具設(shè)計(jì)。后鋼板彈簧吊零件的主要加工表面是平面及孔。所以本設(shè)計(jì)遵循先面后孔的原則?；鶞?zhǔn)選擇以后鋼板彈簧吊耳大外圓端面作為粗基準(zhǔn)，以后鋼板彈簧吊耳大外圓端面與兩個(gè)工藝孔作為精基準(zhǔn)。在后續(xù)工序中除個(gè)別工序外均用端面和工藝孔定位加工其他孔與平面。關(guān)鍵詞 后鋼板彈簧吊耳，加工工藝，專用夾具ABSTRACTThe design of the plate after spring lug parts of the processing order of the processes and some special fixture design. Spring plate after hanging parts of the main plane of the surface and pore. By the principle known Processing , the plane guarantee precision machining holes than guarantee the machining precision easy. So the design follows the surface after the first hole principle. Plane with holes and the processing clearly divided into roughing and finishing stages of processing to ensure accuracy. After selecting base plate spring lug large cylindrical face as a rough benchmark, After the leaf spring lug large cylindrical end with two holes as a precision technology benchmarks. main processes arrangements after the first spring plate lug large cylindrical face each other benchmarks machined face, End position to further processing out of holes. In addition to the followup processes are individual processes with endpositioning technology and other processing Kong and plane. The entire process of processing machine binations were selected. Key words The empress steel plate spring coil mourns the ear,Process the craft,Appropriation tongs目 錄摘 要 ..........................................................................................................................ⅠABSTRACT.................................................................................................................II目錄 ................................................................................................................................11 緒 論 .........................................................................................................................12 后鋼板彈簧吊耳加工工藝規(guī)程設(shè)計(jì) ......................................................................3 零件的分析 .............................................................................................................................3 零件的作用 .....................................................................................................................3 零件的工藝分析 .............................................................................................................3 工藝過(guò)程設(shè)計(jì)所應(yīng)采取的相應(yīng)措施 .....................................................................................4 后鋼板彈簧吊耳加工定位基準(zhǔn)的選擇 ................................................................................4 確定毛坯的制造形式 ....................................................................................................4 粗基準(zhǔn)的選擇 .................................................................................................................4 精基準(zhǔn)的選擇 .................................................................................................................5 工藝路線的制定 ....................................................................................................................5 工藝方案一 ....................................................................................................................5 工藝方案二 ....................................................................................................................5 工藝方案的比較與分析 ................................................................................................6 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 .....................................................................6 確定切削用量及基本工時(shí)（機(jī)動(dòng)時(shí)間） .............................................................................7 時(shí)間定額計(jì)算及生產(chǎn)安排 ...................................................................................................16 本章小結(jié) ..............................................................................................................................183 粗銑后鋼板彈簧吊耳內(nèi)側(cè)端面夾具設(shè)計(jì) ............................................................19 粗銑后鋼板彈簧吊耳內(nèi)側(cè)端面夾具設(shè)計(jì) ...........................................................................19 定位方案的分析和定位基準(zhǔn)的選擇 ...................................................................................19 定位誤差分析 .......................................................................................................................19 銑削力與夾緊力計(jì)算 ...........................................................................................................20 定向鍵與對(duì)刀裝置設(shè)計(jì) .......................................................................................................21 夾緊裝置及夾具體設(shè)計(jì) .......................................................................................................23 夾具設(shè)計(jì)及操作的簡(jiǎn)要說(shuō)明 ...............................................................................................24 本章小結(jié) ...............................................................................................................................244 加工 工藝孔夾具設(shè)計(jì) ..............................................................................2530m? 加工 工藝孔夾具設(shè)計(jì) ............................................................................................25 定位方案的分析和定位基準(zhǔn)的選擇 ...................................................................................25 切削力的計(jì)算與夾緊力分析 ..........................................................................................