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1、鍛壓技術(shù)2006年第1期雙封閉球頭筒縮口工藝與模具設(shè)計(jì)3李彥蓉,袁光明(山東理工大學(xué)機(jī)械工程學(xué)院,山東淄博255049)摘要:介紹了縮口工藝的概念、特點(diǎn)、主要工藝缺陷及影響縮口變形程度的因素。分析了雙封閉球頭筒零件加工的工藝性,經(jīng)過(guò)比較確定用縮口工藝來(lái)完成該件的加工制造。在此基礎(chǔ)上,對(duì)所給零件的縮口工藝計(jì)算的內(nèi)容和步驟做了詳盡的介紹,給出縮口工序的次數(shù)、各次縮口工序的變形程度、毛坯的高度、工序件的尺寸并進(jìn)行了壓力機(jī)的選擇。結(jié)合零件的試制,進(jìn)行縮口模具的結(jié)構(gòu)設(shè)計(jì),并對(duì)模具的工作原理、模具主要零件相互關(guān)系及其作用做了詳細(xì)的論述。通過(guò)對(duì)試件的質(zhì)量分析,說(shuō)明了縮口工藝計(jì)算
2、和模具結(jié)構(gòu)設(shè)計(jì)的結(jié)果能滿足所給零件的加工工藝,試件基本達(dá)到了設(shè)計(jì)的要求。最后還指出了縮口工藝中常被忽略的變形對(duì)工藝過(guò)程的影響以及改進(jìn)這一問(wèn)題還需要進(jìn)行的研究。關(guān)鍵詞:雙封閉球頭筒;縮口工藝;變形程度;縮口模具中圖分類(lèi)號(hào):TG38512文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):100023940(2006)0120048203Processanddiedesignofdouble2endedspherical2toptubenarrowing2mouthLIYan2rong,YUANGuang2ming(SchoolofMechanicalEngineering,ShandongUn
3、iversityofTechnology,ZiboShandong255049,China)Abstract:Thearticleintroducestheconcept,characteristics,maintechnicallimitationofthenarrowing2mouthprocessandaffectingfactorsofdeformationdegree,analysesthemanufacturabilityofthedouble2endedspherical2toppartsprocessandconfirmstousetheshrin
4、kagecavitytechnologytofinishtheproductionofthepartbycomparison.Onthis,thearticlemakesadetailintroductionintheaspectsofcontentandprocessaboutthenarrowing2mouthprocessofthegivenparts,providestheproceduresequence,deformationdegreeofeveryprocedure,theheightofthebilletandthepartsizeofevery
5、procedureandintroducestheselectingmethodsofthepress.Integratedwiththetrial2produceofthepart,thearticlediscussesthestructuredesign,theoperatingprinciple,theinterrelationandfunctionsofthemainpartsofthedie.Theanalysisofthetest2piecequalityshowsthattheresultofthenarrowing2mouthprocessandt
6、hediestructuredesigncanmeettheprocessingtechnicalrequirementsofthegivenparts,andthetest2piececancompletelymeetthedesignrequirements.Atlast,thearticlepointsouttheprocessimpactbroughtbydeformation,whichisoftenignoredinthenarrowing2mouthprocessandthefurtherresearchforimprovingthisproblem
7、.Keywords:double2endedspherical2toptube;narrowing2mouthprocess;degreeofdeformation;dieofnarrowing2mouthprocess程度主要受失穩(wěn)條件的限制?？s口變形程度的大小1引言與材料的種類(lèi)、材料的厚度、縮口模具的結(jié)構(gòu)形式縮口是一種冷沖壓加工工藝,它是將預(yù)先制備以及模具工作零件表面的質(zhì)量有關(guān)。當(dāng)縮口工件要好的圓筒形或管狀坯件,通過(guò)縮口模具將其口部縮求的變形程度超過(guò)了既定條件下材料的變形程度時(shí),小成所需形狀的一種成形工藝?？s口工藝的特點(diǎn)是則需采用多道縮口工序才能成形。毛坯的變
8、形部分受切
