【正文】 ................................................10 畢 業(yè) (設(shè) 計(jì)) 論 文 用 紙（一）沖裁力的計(jì)算 ....................................................................10（二）卸料力的計(jì)算 ....................................................................10（三）推件力的計(jì)算 ....................................................................10（四）總沖裁力的計(jì)算 ................................................................10五、壓力中心的確定 .............................................................................10六、初選壓力機(jī) .....................................................................................11七、閉合高度的校核 .............................................................................12第三章 沖裁模的設(shè)計(jì) ...........................................................................13一、沖裁間隙的確定 .............................................................................13二、凸模與凹模刃口尺寸的計(jì)算 .........................................................14（一）沖孔模刃口尺寸計(jì)算公式： ............................................14（二）落料模刃口尺寸計(jì)算 ........................................................14三、模具的總體設(shè)計(jì) .............................................................................16（一）模具類型的選擇 ................................................................16（二）定位方式的選擇 ................................................................16（三）卸料、出件方式的選擇 ....................................................16（四）導(dǎo)向方式的選擇 ................................................................16（五）沖裁模主要零件的設(shè)計(jì)計(jì)算 ............................................161．凹模設(shè)計(jì) .................................................................................162．凸模設(shè)計(jì) .................................................................................173．凸模固定板的設(shè)計(jì) .................................................................19 畢 業(yè) (設(shè) 計(jì)) 論 文 用 紙4．卸料板的設(shè)計(jì) .........................................................................205．凸凹模的設(shè)計(jì) .........................................................................216．彈性元件的設(shè)計(jì) .....................................................................227．卸料螺釘?shù)倪x取 .....................................................................238．螺釘與銷釘 .............................................................................239．擋料銷的選用 .........................................................................2310．模架的選用 ...........................................................................24（六）模具的閉合高度計(jì)算 ........................................................24（七）模具的總裝配圖 ................................................................25第四章 彎曲模的設(shè)計(jì) ...........................................................................26一、彎曲模分析 .....................................................................................26（一）彎 曲 ................................................................................26（二）彎曲件的彎曲方法 ............................................................26（三）彎曲變形的過程 ................................................................26（四）彎曲變形的特點(diǎn) ................................................................27（五）彎曲變形時(shí)的應(yīng)力應(yīng)變狀態(tài) ............................................27（六）最小相對(duì)彎曲半徑 rmin/t................................................28（七）彎裂 ....................................................................................28（八）彎曲時(shí)的回彈 ....................................................................29（九）彎曲件的工序安排原則 ....................................................30二、彎曲模設(shè)計(jì) .....................................................................................30 畢 業(yè) (設(shè) 計(jì)) 論 文 用 紙（一）沖裁彎曲件的工藝分析 ....................................................30（二）彎曲件坯料展開尺寸的計(jì)算 ............................................31（三）彎曲力的計(jì)算與壓力機(jī)的選用 ........................................31 ...........................................................................31 ...........................................................................31（四）彎曲模的結(jié)構(gòu)設(shè)計(jì) ............................................................32 ...........................................................................3凹模間隙 ...........................................................................33（五）模具零件材料的選取 ........................................................33（六）模具零件的設(shè)計(jì) ................................................................34 ...............................................................................34 ...............................................................................35 ...............................................................................36 ........................................................................3銷釘?shù)倪x取 ...................................................................37(七) 模具整體結(jié)構(gòu) ......................................................................37（八）模具的工作過程 ................................................................38（九）彎曲模結(jié)構(gòu)設(shè)計(jì)要點(diǎn)及注意事項(xiàng) ....................................39第五章 工藝文件 .................................................................................40一、沖壓零件機(jī)械加工工藝過程卡（見附表一） .............................40二、沖壓工藝卡（見附表二） .............................................................40 畢 業(yè) (設(shè) 計(jì)) 論 文 用 紙三、沖壓模具工序裝配卡（見附表三） .............................................40附表一 沖模零件機(jī)械加工工藝過程卡（1） ...................................41附表一 沖模零件機(jī)械加工工藝過程卡（2） ...................................42附表一 沖模零件機(jī)械加工工藝過程卡（3） ...................................43附表二 沖壓工藝卡片 ........................................................................44附表三 沖壓模具裝配工序卡 .............................................................45結(jié)論 .........................................................................................................46致謝 .........................................................................................................47參考文獻(xiàn) .................................................................................................48 畢 業(yè) (設(shè) 計(jì)) 論 文 用 紙1第一章 緒論一、