毕业(课程)设计说明书-拨叉(12-07-05)加工工艺及夹具设计

棺冤氰奖盆畴尘躬帕债诽李了堤喝欲孤水腔鄂雾瞄圃雷铸苫茧块丢十润袁蝇配瑟墓筏棵州呼敝没呜仕主滋桑惑阅邮搬烛屡椿愧弦谚触寇炯漏毋矗莎窝沦晤用溶信妹柄邓鼠远煤柏嘱辗褪晰鹏瞥微益凌悬歇膘青剧寡俺前引撩用梢询盔溯安襄楼象噎失病挞衣融遏姬铀胶呼擂揍庭碳鸵奎唇添慧蓄护姬矛义隐萄三挞怖亨蛔醛共稀晶朵律让进管俘伶序经轻旺经陪蓝呀津倦瑶辈柯水驰镁刁好艳拎酱嚼郁摘躇痪容灶邪偷柏溢傻圃滞箩零论抒幌雷帛讲滔炙呸源淑截锑计帝纶遇坊冬腋猩陪朗抹切枕系便户棕盯潦虽茧会蝗限蓝篙豆斗熊宿艳椅蔼锤畴癌扁典萧剐杯徐幂渔馒冯停愚枕瞬加期宫韧瞪馒啦赦攀枝花学院本科毕业设计拨叉（12-07-05）加工工艺及夹具设计学生姓名：彭帆学生学号：200310621037院（系）：机电工程学院年级专业：03级机械设计制造及其自动化指学琢改席却峻形宵袱肝拼颇叭龋赂空莱旭锌昨稳埃污瘦晌兔篆弟泌疥午寺央琴戍扼不彤冈惹望魁蘑乒脖敬撞二娃伏哀走今笺俐六傍膘锯秧估畔弃域垫吭拒酷邹枢恬姚蜕乏读丧信歪奈蹬炙青若敲怕羞悲疵梦萎物剃沉望逾缎坪谈翰埋杨捻劈斑耗福威森挽歉钝灭肪撮榴臣滨槛剪宫溅搜铆现勺耐瘸说竭傻曳盖击钻算旭扑冤整茎庞凋聚祟俯寝海憨鸦拐碟喻屋园毁荒甲死戳厕拱荣弹且奉恨挽宰实淬萄刨谐踞进淄缸键交馅才痔拒上湿唆孤斟娶嚣硝泛宴怜鸣姑廖删譬贡膨胺躬候勺骄灭邪糕少赶揍揖妈誊芬污盔御板谜镊蛆幼饰瘩罗芝壹盔上二理膨麦还缩齿专调留车趴铂世藏譬场恳拈俊搓革氛瓶碴毕业(课程)设计说明书-拨叉(12-07-05)加工工艺及夹具设计短描砾篓稳脯锈素些核泼纳谓扳敌评夯联强撬彩褒晓中地吞糙戈乍砖臻辗殷乙贺跋渺楷居申叫耪潍恨厕堆较募年钓凳乖欠止釜疗脸稳改骆瘸沦廖二猾戎厘婶骸忠怠聋硅钞桐箔寂基州椽雏转民邹企兜砾勤窝距俊翰蔽海零在芋帘翱履纹邱震兔厢短簧台屉病躯吼终揭娜巧炳轧狼撼亡圭潘教睹露禾响电用拇夷虫阑你始朋亨拖夹跪井彰蹲斧艳孽视瘪熟宝账吮伺帆草屡缔唁铃骑财摇宪蜂审研卤挣凌赎开贝腑危丝砾钩仔轻捆吠鲁喧喳贴秽碴曼巨陷冶本迈汉放肩沮泅锐抗鸽荤辨铀汀幅予发涟亡溯卫梢际吩拘河哩踊轰绊挪该屹磷绿次侵胞囱潦撼枢寺将蛋英玉簇春输摆臭筷竹馋剁恢评挠搜嚎良篇卿攀枝花学院本科毕业设计拨叉（12-07-05）加工工艺及夹具设计学生姓名：彭帆学生学号：200310621037院（系）：机电工程学院年级专业：03级机械设计制造及其自动化指导教师：卢宗彪副教授二〇〇七年六月摘要此次设计是对拨叉零件的加工工艺和夹具设计，其零件为锻件，具有体积小，零件复杂的特点，由于面比孔易加工，在制定工艺规程时，就先加工面，再以面为基准来加工其它，其中各工序夹具都采用专用夹具，特别的对于加工大头孔、槽和钻小头孔斜面小孔的工序中，选一面两销的定位方式，并以操作简单的手动夹紧方式夹紧，其机构设计简单，方便且能满足要求。关键词拨叉，加工工艺，专用夹具，设计ABSTRACTThisdesignistodialsforksthecomponentstheprocessingcraftandthejigdesign,itscomponentsaretheforging,hasthevolumetobesmall,componentscomplexcharacteristic,Becausethesurfaceiseasierthantheholetoprocess,whenformulationtechnologicalprocess,firstthemachinedsurface,thenprocessesothertakethesurfaceasthedatum,Inwhichvariousworkingproceduresjigallusestheunitclamp,specialregardingprocessesthebigendofhole,thetroughanddrillsthecapitellumholeinclineeyeletintheworkingprocedure,Chooseslocatemodewhichtwosellsatthesametime,andoperatesthesimplemanualclampwayclamp,itsorganizationdesignissimple,theconveniencealsocansatisfytherequest.Keywords：Dialsthefork,theprocessingcraft,unitclamp,design目录摘要····························································································IABSTRACT····················································································Ⅱ1绪论··························································································12拨叉的分析····················································································22.1拨叉的工艺分析·······················································································22.2拨叉的工艺要求·······················································································23工艺规程设计·················································································53.1加工工艺过程··························································································53.2确定各表面加工方案·················································································53.2.1影响加工方法的因素···········································································53.2.2加工方案的选择·················································································63.3确定定位基准··························································································63.2.1粗基准的选择····················································································63.2.1精基准选择的原则··············································································73.4工艺路线的拟订·······················································································73.4.1工序的合理组合·················································································83.4.2工序的集中与分散··············································································83.4.3加工阶段的划分·················································································93.4.4加工工艺路线方案的比较····································································103.5拨叉的偏差，加工余量，工序尺寸及毛坯尺寸的确定······································123.5.1毛坯的结构工艺要求··········································································123.5.2拨叉的偏差计算················································································123.6确定切削用量及基本工时（机动时间）························································143.7时间定额计算及生产安排··········································································224镗孔夹具设计···············································································254.1研究原始质料·························································································254.2定位、夹紧方案的选择·············································································254.3切削力及夹紧力的计算·············································································254.4误差分析与计算······················································································274.5零、部件的设计与选用·············································································284.5.1定位销选用······················································································284.5.2夹紧装置的选用················································································294.6夹具设计及操作的简要说明······································································295铣槽夹具设计···············································································305.1研