目 录
内容提要.....................................................................................................................І
SUMMARY...............................................................................................................П
1 课题提出的背景和意义..................................................................................1
1.1 课题的研究背景...............................................................................................1
1.2 UG的应用前景及UG软件应用的意义..................................................1
2 零件的分析..........................................................................................................2
2.1 零件的作用2
2.2 零件的工艺分析.3
3 工艺规程设计.4
3.1 毛坯的制造形式.4
3.2 基准面的选择.4
3.3 制订工艺路线.4
3.4 机械加工余量、工序尺寸及毛坯尺寸的确定.6
3.5 确定切削用量及基本工时.7
4 基于UG专用夹具设计..20
4.1 问题的指出20
4.2 夹具设计20
4.3 定位误差的分析21
4.4 利用UG对夹具的建模21
4.5 基于UG的夹具建模过程概述..................................................................22
5 全文总结............................................................................................................30
参考文献31
致 谢33
内容提要
油液的渗漏问题一直是汽车行业关注的问题，而填料箱盖的设计就成为了最为关键的环节。如何解决填料箱盖的工艺规程如何缩短产品的设计周期是目前亟待解决的问题，本毕业设计就是将利用UG对填料箱盖的工艺规程进行设计，并进行工艺夹具设计。
设计中,我首先对零件的进行分析,根据零件的用途以及加工要求以及产品的批量我确定零件的所用材料,然后根据零件的尺寸设计零件加工工艺过程。设计中我先假设两条加工路线，经过多方面对比最后确定对零件的加工路线。随后在设计好的工艺路线，我确定加工各工序的加工余量，计算各步工时。
在确定零件的加工工序后，我选择对零件的第4道工序加工12孔进行夹具设计。考虑到12孔中6-φ13.5，2-M10,4-M10,为平均分布，在设计中我将采用气动夹紧，采用心轴定位，可卸钻模板与止口配合实现五点定位，设计中的定位精度高可与工件一起装卸。
最后，我将运用目前正广泛使用的UG软件，利用其强大的建模功能将零件和夹具进行建模并进行装配，最后生成爆炸图。在最后环节中，为了介绍UG软件的建模功能我将将详细地介绍填料箱盖夹具体的建模过程。
在设计中对UG的应用将有效地缩短产品设计周期。使整个设计看起来形象。
SUMMARY
Oil leakage issue is a concern of the automotive industry, and fill covers the design has become the most crucial link. Covers how to solve the packing process in order to shorten the product design cycle is the urgent need to solve the problem, the graduation project is to use UG Covers to fill the order of the design and conduct of fixture design.
In the desire, Firstly i analysis the part , I ascertain the material of the part use according to uses and the batches processing request if the product , the dimension according to the part designs that the part processes procedure and then. I assume two processes first in design, by that many ways contrasts ascertain the treating route to the part finally. Follow in designing the good handicraft route, I ascertain the treating margin processing every working procedure's, calculating working hour of every step.
After i ascertain the process of the part ,i decide to design the grip of the 4th work setp ,Conciding the 2-M10 , 4-M10,6-φ13.5 holes scatter averagely to 12 holes,I will adopt pneumatic fastening motion , adopt a mandril to fix position in design, may remove drill form board and stop may load and unload together with workpiece in coordination with realizing allocation accuracy height in at 5 o'clock fixing position , designing that.
I will use the UG software into gratuate design that broadly used at present finally, the model function making use of whose building big and powerful carries out the part and the clamp building the model and picture carrying out assembling , generating explosion finally. In the final step, I will introduce model buliding proess of UG software , I will sqeeze the cover introducing the filling box detailedly building model process concretely.
In design, the application to UG will shorten the product design cycle effectively. Make the whole design seem image.
1 绪论
随着社会的发展，能源问题成为全球共同的话题，而石油作为不可再生能源，一直是各个国家最为关注的。世界各国在努力寻求解决石油紧缺问题的方法。其实石油问题的解决不外乎两点，一是开发新能源，二是减少资源的浪费。如何解决石油的泄漏问题是本设计研究的关键。汽车中石油的泄漏主要体现在填料箱盖上。本设计的课题将就填料箱盖的工艺规程及夹具的设计。
当今国内的工业社会，尚处于发展阶段,制造工业占主导地位。而在实际生产中产品的加工路线的确定对企业的生存有着至关重要的影响。随着三维建模软件的日益广泛的应用，产品的设计周期明显缩短，且工件报废率明显下降，本设计对填料箱盖工艺路线以及夹具的设计正是基于目前广泛的Unigrafics软件，通过本软件的建模和工程图功能，能有效地提高生产率，更形象地反映工艺夹具的工作情况。
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