【正文】 本科畢業(yè)論文（設(shè)計） 題 目 墊片沖壓模具設(shè)計 學(xué)生姓名 專業(yè)名稱 機械設(shè)計制造及其自動化 指導(dǎo)教師 2020 年 5 月 12 日 教學(xué)單位 學(xué)生學(xué)號 編 號 J I 墊片沖壓模具設(shè)計 摘要 ： 本文介紹的模具 設(shè)計 結(jié)構(gòu)簡單實用，使用方便可靠， 首先根據(jù)工件圖計算工件的展開尺寸，再根據(jù)展開尺寸計算該零件的壓力中心，材料利用率，畫排樣圖。根據(jù)零件的幾何形狀要求和尺寸的分析，采用復(fù)合模沖壓，這樣有利于提高生產(chǎn)效率，模具設(shè)計和制造也相對于簡 單。當(dāng)所有的參數(shù)計算完后，對模具的裝配方案，對主要零件的設(shè)計和裝配要求技術(shù)要求都進行了分析。 其中模具結(jié)構(gòu)設(shè)計是這次設(shè)計的主要內(nèi)容，其內(nèi)容包含了一系列模具的重要零部件的設(shè)計加工方法和加工注意要點。這樣更有利于加工人員的一線操作，使其通俗易懂加工方便。 關(guān)鍵詞 ：墊片、沖壓模、 級進模 。 II Gasket stamping die design Abstract： This article describes the structure of the separator mold design is simple and practical, easytouse and reliable, first of all work plans in accordance with the known relationship between the size of its work process analysis and calculate the size of the start, and then expand the size calculated based on the utilization of materials, layout plans drawn, calculate the center of pressure parts. In accordance with requirements of parts geometry and dimensions of analysis, and ultimately determine the design of pound die stamping, it will help improve production efficiency, mold design and manufacturing are also pared with the simple. When all the parameters after the program of the mold assembly, the main parts of the design selection and assembly requirements, technical requirements were analyzed. Mold is one of the structural design of the main elements of this design, which contains a series of important parts of the mold design and processing methods and attention at the time of mold assembly points. This process is more conducive to frontline personnel to operate, easy to understand process. Key words: Shim； Stamping die； progressive die. 1 目 錄 緒論 .......................................................................................................................... 1 沖壓的概念、特點及應(yīng)用 .............................................................................. 1 沖壓的基本工序及模具 ............................................................................... 2 沖壓技術(shù)的現(xiàn)狀及發(fā)展方向 ....................................................................... 3 沖裁工藝設(shè)計 .......................................................................................................... 5 零件的工藝性分析 ......................................................................................... 5 沖壓工藝方案的確定 ..................................................................................... 6 沖裁排樣設(shè)計 .......................................................................................................... 8 排樣方案的確 定 ............................................................................................. 8 搭邊的選取 ..................................................................................................... 8 送料步距、條料寬度及板料間距計算 ........................................................ 10 送料步距 ............................................................................................ 10 條料寬度及板料間距的計算 ............................................................ 10 排樣圖 ........................................................................................................... 12 材料的經(jīng)濟利用 ............................................................................................ 12 材料利用率 ......................................................................................... 12 提高材料利用率方法 ......................................................................... 13 沖裁力和壓力中心的計算 .................................................................................... 14 4. 1 沖裁力 ......................................................................................................... 14 4. 2 壓力中心的計算 ......................................................................................... 15 刃口尺寸計算 ........................................................................................................ 16 沖裁間隙分析 ................................................................................................ 16 刃口尺寸計算原則 ........................................................................................ 18 沖孔刃口尺寸計算 ........................................................................................ 20 沖孔刃口尺寸計算方法 ..................................................................... 20 沖孔刃口尺寸具體計算 ..................................................................... 20 2 落料刃口尺寸計算 ....................................................................................... 22 落料刃口尺寸計算方法 ..................................................................... 22 落料刃口尺寸具體計算 ..................................................................... 22 結(jié)構(gòu)的總體設(shè)計 .................................................................................................... 24 工件主要零件設(shè)計 ................................................................................................ 24 7． 1 沖孔凸模的設(shè)計 .......................................................................................... 24 落料凹模的設(shè)計 ............................................................................................ 26 模架的設(shè)計 .................................................................................................... 27 模柄的設(shè)計 .................................................................................................... 28 卸料板的設(shè)計 ................................................................................................ 28 螺釘?shù)脑O(shè)計 .................................................................................................... 29 銷釘?shù)脑O(shè)計 .................................................................................................... 29 8．校核 模具閉合高度及壓力機有關(guān)參數(shù) ................................................................ 30 校核模具閉合高度 ....................................................