连杆工艺工装及铣面夹具设计说明书[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目：连杆工艺工装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：高工）（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）连杆工艺工装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97学号：0923826作者姓名：2013年5月25日摘要连杆是柴油机的主要传动件之一，本文主要论述了连杆的加工工艺及其夹具设计。连杆的尺寸精度、形状精度以及位置精度的要求都很高，而连杆的刚性比较差，容易产生变形，因此在安排工艺过程时，就需要把各主要表面的粗精加工工序分开。逐步减少加工余量、切削力及内应力的作用，并修正加工后的变形，就能最后达到零件的技术要求。机械加工工艺是企业上品种、上质量、上水平，加速产品更新，提高经济效益的技术保障。然而夹具又是制造系统的重要部分，工艺对夹具的要求也会提高，专用夹具、成组夹具、组合夹具和随行夹具都朝着柔性化、自动化、标准化、通用化和高效化方向发展以满足加工要求。所以对机械的加工工艺及夹具设计具有十分重要的意义。关键词:连杆；加工工艺；夹具设计AbstractTheconnectingrodisoneofthemaindrivingmediumofdieselengine,thistextexpoundsmainlythemachiningtechnologyandthedesignofclampingdeviceoftheconnectingrod.Theprecisionofsize,theprecisionofprofileandtheprecisionofposition,oftheconnectingrodisdemandedhighly,andtherigidityoftheconnectingrodisnotenough,easytodeform,soarrangingthecraftcourse,needtoseparatetheeachmainandsuperficialthickfinishmachiningprocess.Reducethefunctionofprocessingthesurplus,cuttingforceandinternalstressprogressively,revisethedeformationafterprocessing,canreachthespecificationrequirementforthepartfinallyKeywords:connectingrod；deformination；processingtechnology；designofclampingdevice目录摘要.............................................................................................................................................IIIAbstract.........................................................................................................................................IV绪论.................................................................................................................................................11零件的造型.................................................................................................................................21.1零件造型软件介绍............................................................................................................21.2零件造型过程....................................................................................................................22零件的分析.................................................................................................................................72.1零件的作用.......................................................................................................................72.2零件的工艺分析...............................................................................................................72.2.1零件图样分析.........................................................................................................72.2.2工艺分析.................................................................................................................73工艺规程设计.............................................................................................................................93.1确定毛坯的制造形式.......................................................................................................93.2定位基准的选择...............................................................................................................93.2.1粗基准的选择.........................................................................................................93.2.2精基准的选择.......................................................................................................103.3拟定工艺路线.................................................................................................................103.3.1工艺路线方案一...................................................................................................113.3.2工艺路线方案二...................................................................................................113.4工艺方案的比较与分析.................................................................................................123.5机械加工余量、工序尺寸及毛坯尺寸的确定.............................................................143.5.1大小头两端表面...................................................................................................143.5.299±0.01mm的两侧面...........................................................................................143.5.3内孔Φ25mm.........................................................................................................143.5.4内孔Φ50mm.........................................................................................................143.5.5油孔Φ5mm...........................................................................................................143.5.6油孔Φ1.5mm........................................................................................................143.5.7油孔Φ4mm...........................................................................................................153.5.8油孔Φ8mm...........................................................................................................153.5.9螺栓孔Φ12.22mm................................................................................................153.5.10螺栓孔Φ13mm...................................................................................................153.5.11锪孔Φ20mm.......................................................................................................153.5.12镗孔Φ58±0.05mm..............................................................................................153.5.13镗孔Φ26±0.05mm..............................................................................................163.5.14镗孔Φ65.5mm....................................................................................................163.5.15镗孔Φ29.5mm....................................................................................................16