【正文】 First of all, do a thorough analysis for the parts, which include the using of the material, the requirement of accuracy and the requirement of working procedure and costs and so on. For declining low cost, proceeded the reasonable design to the row kind method. Secondly, do processing design for the whole parts and the purpose by craft designing and order of the working procedure and by the choice of punching machine. Thirdly, consider the calculation of size of the mould cutting edge in order to meet the need of accuracy. Because the cutting edge is the main working part of the punching processing, the accurate cutting edge guarantees the accurate parts. So you needed to tolerance do accurate calculation. Finally, according to the calculated the size of mold cutting edge design the corresponding punch and mold, and find information on selection criteria for cold stamping parts, meet the standards, put the punch and mold with the other ponents to the overall assembly. In determining the specific mold closed height, select the appropriate press in the debug and test validation washed after processing, to meet pliance standards, the final pletion of the processing chain plate. Keywords： posite modulus； stamping process； mold design III 目錄 摘要 ............................................................................. I Abstract ......................................................................... II 目錄 ........................................................................... III 第一章 引 言 .................................................................... 1 課題研究的主要內(nèi)容及意義 ................................................ 1 沖壓成型工藝與理論的研究 ............................................ 1 .............................................. 1 CAD/CAM ........................................................ 2 選題目的 ................................................................ 2 第二章 零件的分析 ................................................................ 3 零件工藝性分析 ........................................................... 3 模具分 析及制定工藝方案 ................................................... 3 方案的確定 ......................................................... 3 方案比較 ........................................................... 4 彎曲展開尺寸計算 ......................................................... 4 第三章 模具間隙和凹模尺寸的確定 .................................................. 5 模具間隙的確定 ........................................................... 5 理論確定法 ......................................................... 5 經(jīng)驗確定法 ......................................................... 5 凹模尺寸 ................................................................. 6 凸模與凹模刃口尺寸的確定 ............................................ 6 凸、凹模刃口尺寸確定的原則 .......................................... 6 刃口尺寸的計算方法 ................................................. 7 凸模與凹模配作法 ................................................... 8 沖裁模刃口尺寸計算 ....................................................... 8 彎曲刃口尺寸計算 ........................................................ 11 IV 第四章 沖裁力的計算與設(shè)備的選擇 ................................................. 12 沖裁力的計算 ............................................................ 12 沖孔力 ............................................................ 12 切邊力 ............................................................ 14 推件力 ............................................................ 15 彎曲力 ............................................................ 15 壓力中心的計算 .......................................................... 16 設(shè)備的選擇 .............................................................. 17 沖壓類型與應(yīng)用 .................................................... 17 沖壓設(shè)備的選用原則 ................................................ 17 沖壓設(shè)備的選用 .................................................... 18 第五章 排樣設(shè)計 ................................................................. 19 搭邊設(shè)計 ................................................................ 19 排樣布局 ................................................................ 19 材料利用率計 算 .......................................................... 19 第六章 級進模具設(shè)計 ............................................................. 20 精度與定位 .............................................................. 20 模具的導(dǎo)向裝置 .......................................................... 20 卸件、卸料設(shè)計 ......................................................... 20 支承與緊固 .............................................................. 20 凹模的設(shè)計 .............................................................. 21 凹模刃口結(jié)構(gòu) ...................................................... 21 凹模厚度計算 ...................................................... 21 凸模的設(shè)計 .............................................................. 22 凸模類型 .......................................................... 22 凸模長度計算和凹模長度計算 ......................................... 22 模具閉合高度的計算 ...................................................... 23 彈性卸料元件的設(shè)計 ...................................................... 24 V 彈性元件的設(shè)計 .................................................... 24 卸料螺釘?shù)脑O(shè)計 .................................................... 24 導(dǎo)向元件的設(shè)計與選擇 .................................................... 25 導(dǎo)柱的設(shè)計 ......