扳手精冲模具设计VIP专享VIP免费

本科毕业设计（论文）题目扳手精冲模具设计系（院）机械工程系年级05专业机械工程及自动化班级学号学生姓名田海兵指导教师职称副教授论文提交日期2009-5-31扳手精冲模具设计摘要本文首先介绍精冲技术的发展及前景，并介绍了精冲连续模技术的基本原理以及与普通连续模的区别。根据零件的形状及结构特点，先用CAD绘制1：1的零件图，确定排样图，计算冲裁力，压边力，反压力和总压力，确定标准模架，计算凹凸模的基本尺寸，以及传力杆、退料杆的尺寸及数目，确定模具的装夹方式并选择精冲机，用CAD绘制出模具装配图，凹凸模图，垫板图等。关键词：精冲技术连续模计算MakitawrenchfineandprogressivediedesignAbstractThispaperfirstlyintroducesthedevelopmentoffineblankingtechnologyandprospects,andintroducesafineblankingdieforthebasicprinciplesoftechnology,aswellasthedifferencebetweentheordinarymodulusofcontinuity.Accordingtotheshapeofpartsandstructuralfeatures,thefirstlyCADdrawing1:1withthepartsdiagram,determinethelayoutdiagram,calculationofblankingforce,blankholderforce,anti-pressureandtotalpressuretodeterminethestandardmoldbaseforcalculatingthebasicsizeofembossingdie,aswellasthetransmissionpole,feedbackthesizeandnumberofstrokestodeterminethewayofmoldclampingandselectfineblankingmachine,drawnbyCADassemblydrawingdie,embossingdiemapandmapofplateandsoon.Keywords:FineblankingtechnologyCalculationmodeCalculated目录1绪论........................................................................................................................................11.1连续模介绍.......................................................................................................................11.2精密冲裁的简介...............................................................................................................11.3精冲技术的起源与发展优势...........................................................................................11.4从我国汽车工业看精冲技术与国外差距及缩小差距方法...........................................11.5对我国精冲技术展望.......................................................................................................32精密冲裁概述.....................................................................................................................52.1精冲分类...........................................................................................................................52.2精密冲裁的工作原理及过程...........................................................................................52.3精密冲裁与普通冲裁的区别...........................................................................................63精冲模具总体设计过程...................................................................................................83.1工艺方案及内容与步骤...................................................................................................83.1.1分析精冲零件的工艺性................................................................................................83.1.2确定最佳精冲方案........................................................................................................83.1.3确定精冲模具的结构形式............................................................................................83.1．4选择合适的精冲机.....................................................................................................83.2精冲件的工艺分析.......................................................