【正文】
內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì) 摘 要 在 工業(yè)發(fā)展大步向前邁進(jìn)的中國(guó) ,沖壓工藝也 在不斷發(fā)展中占據(jù)著越來(lái)越重要的地位 。 此次設(shè)計(jì)首先通過計(jì)算坯料的尺寸,明確拉深的次數(shù),最終 確定了 完成工件的加工 需要兩次拉深。 在這之后以目標(biāo)工件即法蘭件為準(zhǔn),在分析了目標(biāo)工件和拉深工藝的基礎(chǔ)上,根據(jù)工序設(shè)計(jì)要求以及對(duì)比了常見的三類模具的優(yōu)缺點(diǎn) , 在 其中選擇了復(fù)合 模具完成落料拉深工序 。 在之后的設(shè)計(jì)中,計(jì)算了要如何排樣,計(jì)算各個(gè)重要的力,還設(shè)計(jì)了要如何把板料沖裁為坯料的方案。在之前的計(jì)算和設(shè)計(jì)的鋪墊下,這之后很順利地計(jì)算和設(shè)計(jì)了模具零件的部分尺寸,如工作部分凸、凹模的刃口尺寸,并根據(jù)標(biāo)準(zhǔn)對(duì)一些數(shù)據(jù)進(jìn)行校核。然后根據(jù)參考資料和標(biāo)準(zhǔn)設(shè)計(jì)了其他模具零件,如定位零件,卸料零件等等。在進(jìn)行了以上計(jì)算和設(shè)計(jì)的基礎(chǔ)上,最后繪制出了模具的裝配圖和零件圖。 關(guān)鍵詞 : 落料;拉深;復(fù)合模;法蘭件 內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì) II ABSTRACT As the Chinese industry continues to develop, stamping process is being more and more important. In this paper, three different stamping processes (single process, posite process and continuous process) of the forming process are pared and analyzed for the punching process and drawing process of the wide flange cylindrical parts. And selected the posite process .The shape, size, nesting, cutting plate scheme, the number of times of drawing, the nature, number and order of stamping process are briefly analyzed. It was determined that two deep drawing is work force, pressure center, mold part of the work size and tolerance calculation, and design of the mold. But also the specific analysis of the main parts of the mold (such as convex and concave die, unloading device, drawing punch, plate, punch fixed plate, etc.) design and manufacturing, convex and concave mold gap adjustment. A detailed list of the parts required for the mold is listed and a reasonable assembly drawing and part drawing are given. Key words: blanking。 drawing。 posite mold。 flanges 內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì) III 目錄 前言 ........................................................................................................................ 第一章 零件的分析 .............................................................................................. 2 零件的技術(shù)要求 ..................................................................................... 2 零件的可拉深性能 ................................................................................. 3 零件的形狀及尺寸公差等級(jí)要求 ......................................................... 3 第二章 工藝分析方案 .......................................................................................... 4 工序尺寸的計(jì)算 ...................................................................................... 4 模具類型的選擇 ...................................................................................... 5 第 3 章 壓力機(jī)的選擇和成型部 件的計(jì)算 .......................................................... 8 搭邊值的確定 ......................................................................................... 8 排樣方式 .................................................................................................. 8 步距 ......................................................................................................... 9 計(jì)算材料利用率 ................................................................................... 10 計(jì)算沖壓力與壓力中心,選擇壓力機(jī) ............................................... 10 確定壓力中心 ....................................................................................... 11 校核沖壓設(shè)備基本參數(shù) ....................................................................... 12 計(jì)算凸凹模刃口尺寸 ........................................................................... 12 第四章 整體方案設(shè)計(jì) ........................................................................................ 15 整體工作原理概述 ................................................................................ 15 各零件作用概述 .................................................................................... 15 模具的形式 ............................................................................................ 16 判斷是否選用壓邊圈 ............................................................................ 16 拉深模間隙 ................................................................................................ 定位與卸料裝置 .................................................................................... 17 第五章 落料模具零部件結(jié)構(gòu)的確定 ................................................................ 18 凸模結(jié)構(gòu)的設(shè)計(jì) .................................................................................... 18 內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì) IV 凹模結(jié)構(gòu)的設(shè)計(jì) ................................................................................... 18 凸凹模的的結(jié)構(gòu)設(shè)計(jì) ........................................................................... 19 ........................................