毕业设计(论文)-长键轴加工工艺及铣槽夹具设计.doc

常州机电职业技术学院毕业设计（论文）说明书作者：学号：系部：专业：题目：长键轴加工工艺及夹具设计指导者：评阅者：年月毕业设计（论文）中文摘要本设计是基于长键轴零件的加工工艺规程及一些工序的专用夹具设计。长键轴零件的主要加工表面是外圆及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后槽的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。主要加工工序安排是先以支承孔系定位加工出顶平面，在后续工序中除个别工序外均用顶平面和工艺孔定位加工其他孔系与平面。夹具选用专用夹具，夹紧方式多选用手动夹紧，夹紧可靠，机构可以不必自锁。因此生产效率较高。适用于大批量、流水线上加工。能够满足设计要求。全套设计请加197216396或401339828关键词：长键轴类零件；工艺；夹具毕业设计（论文）外文摘要Title：ThelongshaftforkprocessingtechnologyandfixturedesignAbstract：Thisdesignisthespecialfixtureformachiningprocessforlongshaftpartsandprocessdesignbasedon.Themainprocessingsurfaceoflongshaftpartsiscylindricalandholes.Ingeneral,ensurethemachiningaccuracyofplanethantoensuretheaccuracyoftheprocessingeasily.Therefore,followthegroovesurfaceafterthefirstprincipleofthedesign.Andtheholeandtheplaneprocessingclearlydividedintoroughingandfinishingstagestoensuremachiningprecision.Themainprocessofmachiningtechnologyisfirsttosupportholepositioningprocessingthetopplane,inadditiontothefollow-upprocessesareindividualprocesseswiththetopplanepositioningtechnologyandotherprocessingKongandplane.Thespecialfixturefixture,clampingmeansmorechoiceofmanualclamping,clampingreliable,agenciescannotself-locking.Therefore,higherproductionefficiency.Suitableforlargebatch,theprocessingpipeline.Canmeetthedesignrequirements.Keywords：longshaft,processing,specialfixture,design目录TOC\o"1-3"\u1加工工艺规程设计PAGEREF_Toc384834936\h21.1零件的分析PAGEREF_Toc384834937\h31.1.1零件的作用PAGEREF_Toc384834938\h31.1.2零件的工艺分析PAGEREF_Toc384834939\h31.2长键轴加工的主要问题和工艺过程设计所应采取的相应措施PAGEREF_Toc384834940\h31.3长键轴加工定位基准的选择PAGEREF_Toc384834941\h41.3.1粗基准的选择PAGEREF_Toc384834942\h41.3.2精基准的选择PAGEREF_Toc384834943\h41.4长键轴加工主要工序安排PAGEREF_Toc384834944\h41.5机械加工余量、工序尺寸及毛坯尺寸的确定PAGEREF_Toc384834945\h61.6选择加工设备及刀、量具PAGEREF_Toc384834946\h61.7确定切削用量及基本工时（机动时间）PAGEREF_Toc384834947\h71.8时间定额计算及生产安排PAGEREF_Toc384834948\h142铣槽夹具设计PAGEREF_Toc384834949\h162.1工序尺寸精度分析PAGEREF_Toc384834950\h162.2定位方案确定PAGEREF_Toc384834951\