【正文】 有圖紙，需要的請聯(lián)系 315437529 I 摘要 全文對后懸置左支架的沖壓工藝及模具設計進行了具體的論證設計。通過工藝分析確定需要三套模具，分別是落料沖孔復合模、第一次彎曲成型模以及第二次彎曲成型模。 根據工藝分析與確定，第一套模具先進行落料沖孔，相應的設計出落料沖孔復合模具。從產品零件圖看出 只有 3 個圓孔 能在落料時沖出 。產品零件外形尺寸較大，所以設計的模具也較大，而且復雜。沖小孔的凸模需要進行強度校核。 工件的第二道工序是彎曲成型，由于產品展開后是不規(guī)則形狀，所以在展開的時候我們要用特殊的軟件來進行模擬展開，展開后的尺寸用于毛坯的選材；本道工序需要完 成兩個部分的彎曲，均為 V 型彎曲，彎曲圓角均為Ｒ 100；在設計頂出器的時候為了保證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，頂出時不至于使零件變形。 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上進行二次彎曲，其形式為 90 度的 U 型彎曲。 需注意設計模具時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。 關鍵詞： 落料沖孔；彎曲 ；三套 有圖紙，需要的請聯(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。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。 This working procedure needs to plete two partial curve, is V is curving, the curving fillet is R100。 In designs knockout39。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。 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。 Curving。 Three sets 有圖紙，需要的請聯(lián)系 315437529 III 目錄 摘要 ........................................................................................................................................ I １ .緒 論 .............................................................................................................................. 1 我國模具技術的發(fā)展趨勢 ........................................................................................ 1 模具產品發(fā)展將大型化精密化 ...................................................................... 1 多功能復合模具將進一步發(fā)展 ...................................................................... 1 快速經濟模具的前景十分廣闊 ...................................................................... 1 模具標準件的應用將日漸廣泛 ...................................................................... 2 模具使用優(yōu)質材料及應用先進的表面處理技術將進一步受重視 .............. 2 在模具設計制造中將全面推廣 CAD/CAM/CAE 技術 ................................. 2 模具高速掃描及數(shù)字化系統(tǒng)將發(fā)揮更大的作用 ........................................ 3 由于本次設計為沖壓模具設計在此要特別列出沖模的發(fā)展方向 : ...................... 3 成形工藝與理論的研究 .................................................................................... 3 沖壓加工自動化與柔性化 ................................................................................ 4 為了滿足制件更新?lián)Q代快和生產批量小的發(fā)展趨勢 .................................... 4 不斷改進板料性能，以提高其成形能力和使用效果 .................................... 4 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，既制定生產方案 ........................................................................ 6 3 毛坯尺寸的計算 ............................................................................................................... 8 排樣設計 .................................................................................................................... 8 排樣的方法 ................................................................................................................ 8 板料排樣設計 ............................................................................................................ 9 搭邊 .................................................................................................................... 9 條料寬度 ............................................................................................................ 9 4 沖裁模工藝計算 ............................................................................................................. 11 沖裁力的計算 .......................................................................................................... 11 壓力中心的計算 ...................................................................................................... 12 沖壓設備的選用 ...................................................................................................... 13 凸凹模刃口尺寸 計算 .............................................................................................. 14 凸模、凹模、凸凹模的結構設計 ......................