汽车发动机活塞加工工艺及夹具设计.

ISB6.7L汽车发动机活塞加工工艺及夹具设计

系部：机电工程系

学生姓名：**

专业班级：机电13D2班

学号： *********

指导教师：**

2016年 1 月 20 日

声明

本人所呈交的ISB6.7L汽车发动机活塞加工工艺及夹具设计，是我在指导教师、公司领导、同事的指导下独立进行分析研究所取得的成果。本论文不包含其他个人已经发表或撰写过的研究成果。对本文的研究做出重要贡献的个人和集体，均已在文中作了明确说明

并表示谢意。

作者签名：

日期：

【摘要】

现在敏捷制造、快速原型制造、快速模具工装制造技术已经成为内燃机零件工业特别是活塞行业竞争的焦点。因此，针对各种内燃机活塞机械加工工艺过程的广泛探索，从而缩短或简化工艺流程、提高产品质量、降低生产制造成本也变得越来越重要。本毕业设计论文通对分析活塞加工技术的发展、活塞的结构特点、活塞各个工作面的加工特征及其工作环境，确定了ISB6.7L活塞的加工方案及加工过程。并对精镗销孔夹具定位与夹紧进行了设计，分析其工作原理，以及在夹具设计过程中应该注意的问题。并分析论证其可行性。

关键词：发动机活塞加工工艺夹具设计

Title The Engine Piston Processing Technology and Fixture Design Of ISB6.7L Automobile

Abstract

Now the agile manufacturing, rapid prototyping and rapid tooling die & mould manufacturing technology has become the focus of internal combustion engine parts industry, especially the piston industry competition.Therefore, in view of all kinds of internal combustion engine piston machining process widely, thus shortening or simplified technological process, improve product quality, reduce the production cost is also becoming more and more important.The graduation design paper through the analysis of the piston processing technology development, the structure characteristics of piston, piston each working face processing characteristics and its working environment, determine the processing scheme and processing process of ISB6.7L piston.And the fine boring and pin hole positioning and clamping jig design, analyzes its working principle, and the problems should be noticed in the process of fixture

design.And analyzed its feasibility.

Key words Engine piston processing fixture design

目次

1 绪论........................................................

1.1选题的背景及意义.................................................................

1.2本课题主要内容...................................................................

2 ISB6.7L活塞结构及加工工艺分析...............................

2.1 ISB6.7L活塞结构.................................................................

2.2 铸造工艺.........................................................................

2.3 活塞加工特征分析.................................................................

3 ISB6.7L活塞机加工工艺.......................................

3.1 毛坯选择.........................................................................

3.2 定位基准的选择...................................................................

3.3 活塞加工工艺制订.................................................................

4 ISB6.7L活塞的表面处理.......................................

4.1 活塞的清洗.......................................................................

4.2 活塞的丝网印刷...................................................................

4.3 活塞的固化.......................................................................

4.4 活塞的铸铁圈防护.................................................................

4.5 活塞的烘干.......................................................................

5 精镗销孔夹具设计 ............................................

5.1 活塞销孔夹具定位及误差分析.......................................................

5.2 工件的夹紧装置的设计.............................................................

5.3 标准间的选用.....................................................................

5.4 夹具体的设计.....................................................................

5.5 精镗销孔夹具工作原理............................................................. 结论........................................................ 致谢........................................................ 参考文献 ................................................... 附录A ............................................................................... 附录B ...............................................................................