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1、 第 0 页 共 34 页常州工程职业技术学院常州工程职业技术学院毕毕 业业 设设 计（论文）计（论文）（_10_届）设计（论文）题目设计（论文）题目 曲轴加工工艺及双面钻削阶梯孔夹具设曲轴加工工艺及双面钻削阶梯孔夹具设计计 系系 部部 机械工程技术系 班班 级级 机电 0731 学学 生生 姓姓 名名 王亮 指指 导导 教教 师师 唐建新 常州工程职业技术学院常州工程职业技术学院二零一零二零一零 年年 六六 月月 十十 日日第 1 页 共 34 页摘摘 要要: :随着社会的快速向前发展，人们的生活水平不断提高，人们对汽车的性能的需求也越来越高。其中汽车的动力性、安全性和排放性能己成为人们关心
2、的主要内容。除了拥有先进的设计结构外，汽车各个零部件的加工质量也发挥着至关重要的作用。作为汽车的核心部件，发动机的零部件的加工质量是整个汽车加工的基础。曲轴是内燃机的主要零部件之一，负责将活塞往复运动转变为旋转运动，承受着复 杂的交变应力，直接影响着内燃机的寿命，而设计的先进性和加工工艺的合理性是提高 曲轴寿命、保证内燃机正常运转的重要保证。本文针对常州柴油机厂S195型柴油机曲轴 加工工艺的设计，对曲轴加工中较为重要的工序进行了研究，并完成双面钻削阶梯孔夹 具的设计。设计说明书1份，外文资料及翻译各一份。在这次毕业设计过程中，我受到了 唐建新老师的悉心指导，感到受益颇多，在此表示感谢！关键词
3、关键词: : 曲轴 工艺 设计 夹具第 2 页 共 34 页Abstract：With the quick forward development of society,the livings tandard of people is constantly raised, and the requirement to the various capabilities of automobile of people is also more and more higher.Among them motive force and safe nature of automobile and emis
4、sion capability have become the major content that people are concerned about.Except possesses the design structure of first-in, the process quality of each parts of automobile is also giving play to the most importance effect.As the main parts of automobile,the p rocess quality of the parts of engi
5、ne is the foundation of whole automobile process. Crankshaft is one of the main parts of intenralc ombustione ngine,which is in charge of converting position back and forth movement into rotating movment ,undergoing complicated interaction stress,afecting the life of internal combustion engine drict
6、ly,the advanced design and the resonable manufacturing process technology are most important surport to improve the life of crankshaft and keep the engine in normal position. This dissertation takes the design of manufacturing process of S195 series crankshaft of the Factory Changzhou Diesel Engine
7、for example,doing sone reserch on the most important processes of Crankshaft processing, and completed the design of the fixture on drilling hole. The graduate design drawings, including five (one of which CAD drawings), machining process cards 1, machining processes card five, design brochures 1, i
8、nformation and foreign language translation, and an. The graduation in the design process, I was a teachers careful guidance of HE Qing, is quite a lot of benefit, and expressed thanks for this!Keywords: crankshaft; design; process; fixture第 3 页 共 34 页目目 录录 1 绪论绪论.41.1 选题背景及课题来源.41.2 本课题研究设计内容.42 零件分析零件分析.52.1 曲轴类零件分析.52.2 曲轴零件的结构特点.62.3 曲轴的技术要求.72.4 曲轴的加工要求.72.5 零件加工过程中特点与难度分析.73 曲轴工艺规程制定曲轴工艺规程制定.93.1 S19505006 曲轴材料及毛坯的选择.93.2 生产类型及其工艺特点.93.3 定位基准的选择.103.4 工艺规程的拟订和主要工序.123.5 加工余量、切削用量、工序尺寸及毛坯尺寸的确定.173.6 主要工序切削用量.194 钻阶梯孔夹具设计钻阶梯孔夹具设计.224.1. 组合机床专用夹具的特点.224.2 工件定位方法及定位元件.224.3 被加工零件工序图.
