悬臂支架铸造工艺设计说明书

Ixxxxxxxxxxxxxxxxxx课程设计报告课程设计名称：悬臂支架铸造工艺设计学生姓名：xxxxxxxxxxxxxxx学院：xxxxxxxxxxxxx专业及班级：xxxxxxxxxxxxxx学号：xxxxxxxx指导教师：xxxxxxxxxxxxxxxxxxxx湖南科技大学本科生课程设计（论文）II摘要铸造生产通常是指用熔融的合金材料制作产品的方法，将液态合金注人预先制备好的铸型中使之冷却、凝固，而获得毛坯或零件，这种制造过程称为铸造生产，简称铸造，所铸出的产品称为铸件。大多数铸件作为毛坯，需要经过机械加工后才能成为各种机器零件；有的铸件当达到使用的尺寸精度和表面粗糙度要求时，可作为成品或零件直接应用。本课程设计是为了获得ZG270-500悬臂支架的合理铸造工艺设计方案，初步设计悬臂支架的铸造工艺方案，包括选择铸件的浇注位置及分型面，确定型芯的数量、定位方式、下芯顺序、芯头形状及尺寸，确定工艺参数（如机械加工余量、起模斜度、铸造圆角级收缩率等）以及浇注系统、冒口、冷铁的形状和尺寸及在砂型中的布置等，通过Pro/e进行仿真，根据模拟结果进行分析，铸造工艺方案的合理性，然后将所确定的工艺方案用文字和铸造工艺符号在CAD零件图上表示出来，绘制铸造工艺图。关键词：铸造工艺设计，悬臂支架，Creo，CAD。湖南科技大学本科生课程设计（论文）IIIUsuallyreferstousingthemoltenalloycastingproductionmaterialproducts,themethodoftheliquidalloypreparationbeforehandgoodmoldininjectioncoolingandsolidification,andblankorparts,themanufacturingprocessisreferredtoascastingproduction,referredtoascasting,castingoutproductsarereferredtoascasting.Asmostofthecastingblank,needaftermechanicalprocessingcanbeallkindsofmachineparts;Somecastingswhentousethedimensionalaccuracyandsurfaceroughnessrequirements,canbedirectlyappliedasfinishedproductsorparts.ThiscourseisdesignedtoobtainreasonableZG270-500cantilevercastingprocessdesign,preliminarydesignofcantilevercastingprocess,includingselectionofcastingpouringpositionandpartingsurface,determinethenumberofcores,positioningway,thecoreorder,coreheadshapeandsize,determinetheprocessparameters(suchasmachiningallowance,mouldlevelAngle,castingtheroundedshrinkagerate,etc.)andthepouringsystem,riserandchilltheshapeandsizeandarrangementinthesandmold,etc,throughtheCreosimulation,accordingtotheresultofsimulationisanalyzed,therationalityofthecastingprocess,thendeterminetheprocessingplaninwordsandcastingprocessrepresentationintheCADdrawing,mappingthecastingprocess.Keywords:castingprocessdesign;cantilever;Creo;CAD.湖南科技大学本科生课程设计（论文）IV目录第一章零件简介.......................................................................................................................................11.1零件介绍..........................................................................................................................................11.2最大尺寸..........................................................................................................................................11.3铸件材料及性能..............................................................................................................................1第二章确定铸造工艺方案....................................................................................................................22.1造型方法与铸型种类的选择...........................................................................................................22.1.1造型的选择..............................................................................................................................22.1.2型砂的选择..............................................................................................................................22.2浇注位置及分型面的确定...............................................................................................................22.2.1分型面的选择..........................................................................................................................22.2.2浇注位置的选择......................................................................................................................3第三章铸造工艺参数设计....................................................................................................................53.1加工余量的选择..............................................................................................................................53.2铸件孔是否铸出的确定...................................................................................................................63.3起模斜度的确定..............................................................................................................................63.4铸造圆角的确定..............................................................................................................................73.5铸造收缩率的确定..........................................................................................................................83.6活块的确定......................................................................................................................................8第四章造型方法设计..............................................................................................................................94.1型芯的设计......................................................................................................................................94.1.1空心支座型芯........................................................................................................................104.1.2空心轴套型芯........................................................................................................................114.2活块设计........................................................................................................................................13第五章木模的设计.......................................................................