目   录
1  引言
1.1  机械行业的发展现状
1.2  机械制造业在国民经济中的地位
1.3  我国机械制造业面临的机遇和挑战
2  毛坯的选择
2.1  毛坯材料的种类
2.2  确定毛坯时应考虑到因素
2.3  确定毛坯时的几项工艺措施
2.4   毛坯的确定
3  4S9左箱边盖零件的分析
3.1  零件的作用和结构
3.2  零件的工艺分析
4  工艺规程设计
4.1  确定毛胚的制造形式
4.2  基准面的选择
4.2.1  基准的概念及分类
4.2.2  基准问题的分析
4.3  制定工艺路线
4.4  机械加工余量、工序尺寸及毛坯尺寸的确定
4.5  确定切削用量及加工工时
5  夹具设计
5.1  夹具的概述
5.2  专用夹具设计
结束语
致谢
参考文献
毕业设计说明书（论文）中文摘要
首先通过对零件图的分析，了解工件的结构形式，明确了具体的技术要求，从而对工件各组成表面选择合适的加工方法。再拟订较为合理的工艺规程，机床夹具设计是工艺装备设计中的一个重要组成部分，在整个机械加工过程中，夹具除了夹紧、固定被加工零件外，还要求保证加工零件的位置精度、提高加工生产率。
本论文根据工程实际的需要完成了4S9左箱盖的机械加工中心工艺规程的编制和专用夹具的设计。具体分析了产品的工艺性，确定采用零件材料的工艺参数和所采用的设备，确定了工艺路线的总体方案，分析并解决了4S9左箱盖的总体结构和各工作部分的具体结构，并进行了一些必要的尺寸计算、加工余量的计算和强度的校核。完成了4S9左箱盖的零件图、装配图的绘制，最后进行了主要零件加工工艺的设计，完成了工艺卡片的编制，圆满完成了4S9左箱盖加工工艺规程所要求的各项工作。
关键词  工艺规程  夹具设计  夹具
毕业设计说明书（论文）外文摘要
Title    The Role and Matching Process of Lift Cover of the
                  4S9 and Work to Park a Design
Abstract
First through to the detail drawing analysis, understood the work piece the structural style, has been clear about the concrete specification, thus to work piece each composition surface choice appropriate processing method. Again drafts the more reasonable technological process, fully manifests the quality, Engine bed jig design is in a craft equipment design important constituent, in the entire machine-finishing process, the jig except clamps, fixes is processed outside the components, but also requests guarantee processing components position precision, enhancement processing productivity.
This thesis physically needed to complete the machine of lever to process draw up of lift cover regulations according to the engineering with the design of appropriation tongs. concretely analyzed the cover of product, made sure lift cover route and create of total project, analyze and solved the concrete structure of the total structure and each work part of the lever, and carry on some necessity of size calculation, process the calculation of the amount of remaining and the school of the strength to check. Completed the spare parts diagram of lever and assemble draw of diagram, finally carried on main spare parts to process the design of craft, completed draw up of craft card, successfully completed lever to process various works that the craft regulations request.
Keywords  Craft regulations  Process design  Tongs