【正文】 2. 沖壓成型工藝 .................................................................................................................. 5 沖壓件工藝分析 ........................................................................................................ 5 確定沖壓工序 ： ........................................................................................................ 5 確定工藝方案 ： ........................................................................................................ 6 在滿足上述要求，既制定生產(chǎn)方案 ........................................................................ 6 3 毛坯尺寸的計(jì)算 ............................................................................................................... 8 排樣設(shè)計(jì) .................................................................................................................... 8 排樣的方法 ................................................................................................................ 8 板料排樣設(shè)計(jì) ............................................................................................................ 9 搭邊 .................................................................................................................... 9 條料寬度 ............................................................................................................ 9 4 沖裁模工藝計(jì)算 ............................................................................................................. 11 沖裁力的計(jì)算 .......................................................................................................... 11 壓力中心的計(jì)算 ...................................................................................................... 12 沖壓設(shè)備的選用 ...................................................................................................... 13 凸凹模刃口尺寸 計(jì)算 .............................................................................................. 14 凸模、凹模、凸凹模的結(jié)構(gòu)設(shè)計(jì) .......................................................................... 16 5. 彎曲工藝計(jì)算 ................................................................................................................ 21 Z 型彎曲模的相關(guān)計(jì)算及模具設(shè)計(jì) ....................................................................... 21 壓彎成型模的相關(guān)計(jì)算及模具設(shè)計(jì) ...................................................................... 26 有圖紙，需要的請(qǐng)聯(lián)系 315437529 IV 6. 設(shè)計(jì)校核 ........................................................................................................................ 30 凸模強(qiáng)度的校核 ...................................................................................................... 30 螺栓強(qiáng)度校核 .......................................................................................................... 30 壓力機(jī)裝模高度的校核 .......................................................................................... 31 7. 畢業(yè)設(shè)計(jì)總結(jié) ................................................................................................................ 32 參考文獻(xiàn) ............................................................................................................................. 32 有圖紙，需要的請(qǐng)聯(lián)系 315437529 1 １ .緒 論 作為一個(gè)即將畢業(yè)的模具專業(yè)學(xué)生來說，４年專業(yè)知識(shí)的學(xué)習(xí)，為以后從事模具設(shè)計(jì)打下很好的基礎(chǔ)，同時(shí)在校時(shí)了解模具行業(yè)的發(fā)展方向也是很有必要的 ,它有助于我們把握自己的學(xué)習(xí)方向，不斷提高自己的專業(yè)素養(yǎng)． 我國(guó)模具技術(shù)的發(fā)展趨勢(shì) 當(dāng)前，我國(guó)工業(yè)生產(chǎn)的特點(diǎn)是產(chǎn)品品種多、更新快和市場(chǎng)競(jìng)爭(zhēng)激烈。 In order to guarantee that curving pletes smoothly, the raised lower die must on the reasonable gap, use the knockout to decide on the workpiece. Key word: Falls the material punch holes。 In designs knockout39。s ramming craft and the mold design. Needs three sets of molds through the process study determination, respectively is falls the material punch holes superposable die, first time to bee the mold curving as well as second time bees the mold curving. According to the process study and the determination, the first set of mold carries on first falls the material punch holes, the corresponding design bees the material punch holes pound mold. Sees only then 3 round holes from the product detail drawing to be able on to fall time the material runs out. The product ponents external dimensions are big, therefore the design mold is also big, moreover is plex. Flushes the eyelet the plunger to need to carry on the intensity examination The work piece second working procedure is the brake forming, because after the product launches, is the anomalous shape, therefore in time we who launches must use the special software to carry on the simulation to launch, after launching the size uses in the semifinished materials the selection。 需注意設(shè)計(jì)模具時(shí)不能損壞第一次彎曲； 為了保證彎曲順利完成，凸凹模要就合理的間隙，采用頂出器將制件定出。 工件的第二道工序是彎曲成型，由于產(chǎn)品展開后是不規(guī)則形狀，所以在展開的時(shí)候我們要用特殊的軟件來進(jìn)行模擬展開，展開后的尺寸用于毛坯的選材；本道工序需要完 成兩個(gè)部分的彎曲，均為 V 型彎曲，彎曲圓角均為Ｒ 100；在設(shè)計(jì)頂出器的時(shí)候?yàn)榱吮ＷC一些零件表面的加工精度，我們要把頂出器一些尺寸與零件做配合，頂出時(shí)不至于使零件變形。產(chǎn)品零件外形尺寸較大，所以設(shè)計(jì)的模具也較大，而且復(fù)雜。 根據(jù)工藝分析與確定，第一套模具先進(jìn)行落料沖孔，相應(yīng)的設(shè)計(jì)出落料沖孔復(fù)合模具。有圖紙，需要的請(qǐng)聯(lián)系 315437529 I 摘要 全文對(duì)后懸置左支架的沖壓工藝及模具設(shè)計(jì)進(jìn)行了具體的論證設(shè)計(jì)。通過工藝分析確定需要三套模具，分別是落料沖孔復(fù)合模、第一次彎曲成型模以及第二次彎曲成型模。從產(chǎn)品零件圖看出 只有 3 個(gè)圓孔 能在落料時(shí)沖出 。沖小孔的凸模需要進(jìn)行強(qiáng)度校核。 第三套模具是彎曲成型模具，本次彎曲是在第一次彎曲的基礎(chǔ)上進(jìn)行二次彎曲，其形式為 90 度的 U 型彎曲。 關(guān)鍵詞： 落料沖孔；彎曲 ；三套 有圖紙，需要的請(qǐng)聯(lián)系 315437529 II Title: After the mounting bracket left Abstract The full text has carried on the concrete proof design after the suspension left support39。 This working procedure needs to plete two partial curve, is V is curving, the curving fillet is R100。s time to guarantee that some ponents surface the working accuracy, we must do knockout some sizes and the ponents the coordination, goes against when as for does not cause the ponents distortion The third set of mold is the brake forming mold, this time curving is carries on two times in the first curving foundation the curve, its form is 90 degree U is curving. Must pay attention to when the design mold cannot damage the first curve。 Curving。在這種情況下， 用戶對(duì)模具制造的要求是交貨期短