一(yi)般來講(jiang),設(she)計的(de)主要(yao)內容及步驟包括:
⒈工藝設計
(1)零(ling)件及其沖(chong)壓(ya)(ya)(ya)工藝性分(fen)析 根據沖(chong)壓(ya)(ya)(ya)件產(chan)品圖(tu),分(fen)析沖(chong)壓(ya)(ya)(ya)件的形(xing)狀特點、尺(chi)寸大小(xiao)、精度(du)要求、原材料(liao)尺(chi)寸規格(ge)(ge)和力學性能(neng),并結合(he)可供選(xuan)用的沖(chong)壓(ya)(ya)(ya)設備規格(ge)(ge)以(yi)及模具制造條件、生產(chan)批量等因素,分(fen)析零(ling)件的沖(chong)壓(ya)(ya)(ya)工藝性,
(2)確(que)定(ding)工(gong)(gong)(gong)藝方案(an)(an),主要工(gong)(gong)(gong)藝參數(shu)計算(suan) 在沖(chong)壓(ya)工(gong)(gong)(gong)藝性分(fen)(fen)析(xi)的(de)(de)(de)基礎上,找出(chu)工(gong)(gong)(gong)藝與(yu)模具(ju)設(she)(she)計的(de)(de)(de)特點與(yu)難(nan)點,根據(ju)實際情況(kuang)(kuang)提出(chu)各種(zhong)可能(neng)的(de)(de)(de)沖(chong)壓(ya)工(gong)(gong)(gong)藝方案(an)(an),內容包括工(gong)(gong)(gong)序(xu)性質(zhi)、工(gong)(gong)(gong)序(xu)數(shu)目、工(gong)(gong)(gong)序(xu)順序(xu)及組合(he)方式等(deng)。有(you)時(shi)同一(yi)種(zhong)沖(chong)壓(ya)零件(jian)也(ye)可能(neng)存在多個可行的(de)(de)(de)沖(chong)壓(ya)工(gong)(gong)(gong)藝方案(an)(an),通(tong)常每種(zhong)方案(an)(an)各有(you)優缺點,應從(cong)產(chan)(chan)品質(zhi)量、生(sheng)產(chan)(chan)效(xiao)率(lv)、設(she)(she)備占(zhan)用情況(kuang)(kuang)、模具(ju)制造(zao)的(de)(de)(de)難(nan)易程度和壽命(ming)高低(di)、生(sheng)產(chan)(chan)成本(ben)、操作方便(bian)與(yu)安(an)全(quan)程度等(deng)方面進(jin)行綜合(he)分(fen)(fen)析(xi)、比(bi)較,確(que)定(ding)出(chu)適(shi)合(he)于現(xian)有(you)生(sheng)產(chan)(chan)條件(jian)的(de)(de)(de)最(zui)佳(jia)方案(an)(an)。此外,了解(jie)零件(jian)的(de)(de)(de)作用及使用要求對零件(jian)沖(chong)壓(ya)工(gong)(gong)(gong)藝與(yu)模具(ju)設(she)(she)計是(shi)有(you)幫助的(de)(de)(de)工(gong)(gong)(gong)藝參數(shu)指制定(ding)工(gong)(gong)(gong)藝方案(an)(an)所依據(ju)的(de)(de)(de)數(shu)據(ju),如各種(zhong)成形系數(shu) (拉深(shen)系數(shu)、脹(zhang)形系數(shu)等(deng))、零件(jian)展(zhan)開尺寸以及沖(chong)裁力、成形力等(deng)。
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