角片套冷冲压工艺及级进模设计论文[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目：角片套冷冲压工艺及级进模设计信机系机械工程及自动化专业学号：学生姓名：指导教师：（职称：副教授）（职称：）2013年5月25日无锡太湖学院本科毕业设计（论文）诚信承诺书本人郑重声明：所呈交的毕业设计（论文）角片套冷冲压工艺及级进模设计是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班级：机械95学号：0923228作者姓名：2013年5月25日II摘要本模具采用切废料方式进行冲压，模具结构采用切口、拉深、冲导正孔、导正再拉深、切废料、弯曲、切断的工序设计，排样采用单排横排排列。并采用正装方式设计模具结构，即凹模装在下模部分，同时为了正确控制送料步距采用单侧侧刃定距，在主要位置采用导正销导正精确定位。由于料较薄，冲压速度较快，卸料可采用弹性卸料结构，建议弹性材料采用弹簧。废料采用在凹模（下模）向下推出，最后产品也是在下模向下推出。带料采用自动左右有侧压的送料装置。同时为了正确控制送料步距采用侧刃定距。由于料不是很厚，冲压速度适中，故卸料采用弹性卸料结构，弹性材料采用矩形截面弹簧。废料和产品均采用向下推出。带料采用自右向左的自动送料装置。冲压工艺分析主要考虑产品的冲压成形工艺，最主要的是包括技术和经济两方面内容。在技术方面，根据产品图纸，主要分析零件的形状特点、尺寸大小、精度要求和材料性能等因素是否符合冲压工艺的要求；在经济方面，主要根据冲压件的生产批量，分析产品成本，阐明采用冲压生产可以取得的经济效益。因此工艺分析，主要是讨论在不影响零件使用的前提下，以最简单最经济的方法冲压出来。关键词：角片套；冲压工艺；排样；级进模IIIAbstractThediebycuttingwastestamping,diestructureincision,drawing,redpilothole,drawingguide,cutwaste,bending,thecutprocessdesign,arrangedinasinglerowofhorizontalnesting.Anddressdesignthediestructure,thedieattachedtothelowerdiepart,inordertoproperlycontrolthefeedingstepunilateralsideofthebladefixedpitch,inthemainlocationpilotstoprecisepositioning.Asthematerialisthin,stampingspeed,thedischargemaybeusedintheelasticunloadingstructure,itisrecommendedthattheelasticmaterialwithspring.Wasteusingthedie(downdie)launcheddownthefinalproductislowerdiedownsoon.Stripautomaticfeedingdeviceleftandrightsidepressure.Inordertoproperlycontrolthefeedingstepawayfromthesideofthebladefixedpitch.Asthematerialisnotverythick,stampingmoderatespeed,thedischargeelasticunloadingstructure,elasticmaterialwithrectangularcross-sectionspring.Thewasteproductsareuseddownsoon.Automaticfeedingdevicewithmaterialfromrighttoleft.Stampingprocessanalysisconsiderthestampingprocess,mostnotablyincludingthetechnicalandeconomicaspects.Onthetechnicalside,accordingtotheproductdrawings,mainlyanalyzesthecharacteristicsoftheshapeofparts,size,accuracyrequirementsandmaterialpropertiesandotherfactorsmeetstherequirementsofthestampingprocess；Ineconomicterms,mainlybasedontheproductionvolumeofthestampings,analyzethecostoftheproduct,andclarifytheuseofthestampingproductioncanbeachievedeconomicbenefits.Processanalysis,mainlytodiscussstampingoutdoesnotaffectthepartofthepremise,thesimplestandmosteconomicalway.Keywords:Anglepiecesets；Atampingprocess；Nesting；ProgressivedieV目录摘要............................................................................................................................................IIABSTRACT..................................................................................................................................III目录............................................................................................................................................V1绪论.........................................................................................................................................11.1课题研究的目的和意义.......................................................................................................11.2课题国内外研究概况...........................................................................................................11.2.1国外模具发展概况........................................................................................................11.2.2国内模具发展概况........................................................................................................21.3课题研究的主要内容...........................................................................................................32冲压工艺设计.............................................................................................................................42.1冲压件简介...........................................................................................................................42.2冲压的工艺性分析...............................................................................................................52.3冲压工艺方案的确定...........................................................................................................72.3.1冲压模具类型................................................................................................................72.3.2冲压工艺分析和计算....................................................................................................82.3.3工序汇总......................................................................................................................143角片套连续模设计...................................................................................................................153.1模具结构.............................................................................................................................153.2确定其搭边值.....................................................................................................................163.3确定排样图.........................................................................................................................163.3.1送料步距与带料宽度..................................................................................................163.3.2排样方案......................................................................................................................183.4材料利用率计算.................................................................................................................183.5凸、凹模等刃口尺寸的确定.............................................................................................193.5.1侧刃、侧刃凹模刃口尺寸计算..................................................................................193.5.2切口凸、凹模刃口尺寸计算......................................................................................203.5.3第1次拉深凸、凹模工作部分尺寸及其公差..........................................................213.5.4第2次拉深凸、凹模工作部分尺寸及其公差..........................................................223.5.5第3次拉深凸、凹模工作部分尺寸及其公差..........................................................223.5.6拉深整形凸、凹模工作部分尺寸及其公差..............................................................233.5.7导正孔凸、凹模刃口尺寸及其公差..........................................................................233.5.8冲圆孔凸、凹模刃口尺寸及其公差..........................................................................243.5.9切废料凸、凹模刃口尺寸及其公差..........................................................................253.5.10切断凸、凹模刃口尺寸及其公差............................................................................263.5.11弯曲凸、凹模工作部分尺寸计算............................................................................273.6冲压力计算.........................................................................................................................293.6.1侧刃冲压力..................................................................................................................29