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汽车发动机连杆的钻Φ10H9孔夹具设计及加工工艺规程含非标6张CAD图

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连杆零件图A4

摘要
对于汽车来说，最重要的动力总成就是发动机，对于发动机来说，重要的零件就是连杆，它是用来对动力进行传送的，连杆工作的地方环境非常差，作用在上面的力也很大，所以说，生产发动机连杆的时候，生产工艺要求是很高的，在这个基础上，研究连杆的生产过程，主要说明的地方有加工工艺，设计夹具，生产机器的切削配合公差等。主要介绍了发动机连杆的生产工艺还有详细的过程，设计夹具来对孔Ф10H9进行钻，铰加工，主要是设计产品的生产工艺，设计工艺流程，设计专用夹具。在进行设计的时候，首先分析了产品，之后按照工艺把坯料的构造算出来，将产品的生产基准定下来，从工序的数据将切削生产量算出来；之后设计夹具，主要设计的是夹具的结构，还有夹具的零部件，将定位偏差算出来，这篇对连杆进行设计，希望能够为这方面提出些有用的建议。
关键词：发动机连杆；加工工艺；工艺规程；夹具设计
Abstract
Engine is an important power assembly of automobile, connecting rod is an important part of engine, which plays an important role in the transmission of power. The working environment of connecting rod is bad, and the bearing force is huge. It has strict requirements for the processing technology of connecting rod of engine. Based on this, the processing process of connecting rod was explored and manufactured. The manufacturing process, fixture design, machine tool chip and tolerance matching are described. In this paper, the technological rules and process of engine connecting rod, the fixture design of drilling and reaming 10H9 holes, including the process design of parts and components, process design and special fixture design, are mainly discussed. The design process of this paper is to analyze the parts, calculate the structure of the blank by the basic technology, determine the processing benchmark of the parts, and calculate the cutting parameters according to the working procedure. Finally, the fixture design includes the composition of the fixture and the main components, and calculate the fixture positioning error. The research of this paper can be added to the connecting rod of the automobile engine. Work provides some reference.
Keywords:engine connecting rod; processing technology; process specification; fixture design
汽车发动机连杆加工工艺规程及钻孔夹具设计
目录
前言1
第1章发动机连杆零件分析2
1.1发动机连杆作用2
1.2发动机连杆工艺分析2
1.2.1工艺过程安排2
1.2.2夹紧方法选取3
1.2.3连杆两端面的加工3
1.2.4连杆大、小端孔的加工4
第2章发动机连杆加工工艺规程设计5
2.1发动机连杆毛坯制造形式5
2.2加工基准的选取5
2.3工艺路线制定6
2.4加工余量和尺寸确定8
2.5切削用量及工时确定8
第3章专用夹具的设计12
3.1问题提出12
3.2定位基准的选择13
3.3定位元件的设计13
3.4切削力和夹紧力的计算13
3.5定位误差分析14
3.6夹具设计及简要操作说明16
总结18
致谢19
参考文献20