高速柴油机连杆胀断工艺设计说明书

目录

摘要Ⅲ

AbstractⅣ

第一章绪论1

1.1 前言1

1.2 国内外发动机连杆工艺进展现状和进展趋势3 1.3 连杆工艺研究方向和研究的关键问题3

第二章连杆零件的分析5

2.1 连杆的结构功能分析5

2.2 连杆的要紧技术要求6

第三章连杆零件机械加工工艺规程的编制7

3.1 生产纲领的确定7

3.2 连杆的工艺分析8

3.3 连杆的材料选择与毛坯的制造方法8

3.3.1连杆的材料选择8

3.3.2 C70S6钢的成分和力学性能10

3.3.3 毛坯的制造方法11

3.4 机械加工余量，工序尺寸及毛坯尺寸确定13

3.5 指定工序定位基准的选择13

3.6 加工工艺时期的划分和加工顺序的安排15

3.7 连杆加工工艺过程的拟定16

3.8填写机械加工工艺过程卡和机械加工工序卡16 第四章指定工序的工装设计17

4.1 机床夹具设计的差不多要求17

4.2 专用夹具设计步骤17

4.3激光开应力槽工装设计19

4.3.1 应力槽的设计19

4.3.2 设备的选择与改装20

4.3.3 拟定定位方案20

4.4胀断工装设计21

4.4.1 设备选择21

4.4.2拟定定位方案21

4.4.3夹具使用讲明21

4.4.4 胀断参数的计算 23

总结24

参考文献25

致谢26

105系列高速柴油机连杆工艺总体方案及指定工装设计

摘要

连杆是柴油发动机的要紧部件之一，它决定着发动机的性能和运行的稳定性。随着科学技术的进展与进步，连杆的制造被注入了现代化的加工手段。“胀断工艺”成为了连杆工艺中的又一新名词。连杆胀断工艺的应用，使连杆在加工质量、生产率和生产成本等诸多方面都发生了显著变化，柴油发动机的性能得到了进一步提升。

本文以柴油机连杆制造工艺的总体方案为要紧研究内容，以连杆的胀断工艺为要紧研究方向。总体方案涉及从连杆材料的选择到加工为成品的全部工艺过程。方案特不对胀断工艺的原理及过程做了深入浅出的论述，并在认真分析连杆技术要求、广泛查阅相关文献的基础

之上，制定出了一条差不多适于连杆实际生产的新型工艺方案和路线。同时，笔者还重点设计了“激光开应力槽”、“胀断”两工序的夹具和工艺装备。

关键词：柴油机连杆，工艺方案，胀断工装

The General Planning of 105 Series High Speed Diesel Engine Products’ Connecting Rod’s Processing Technic

and the designated Design of Clamping Device

Abstract

Linkage of the diesel engine is one of the main parts of its decision to the engine performance and the stability. With the scientific and technological development and progress of the link was injected into a modern manufacturing processing methods. "Expansion of off" has become a link in the process of yet another new term. Linkage bulging off the application process so that the link in the processing quality, productivity and production costs, and so have undergone significant changes, the diesel engine has been further enhance performance.

Diesel link this to the overall manufacturing process for major research programme, to link the expansion of off the main research directions. Linkage of the overall plan from the choice of materials to finished products for processing all the process. Special programmes on the principle of expansion off course and had to learn to do the exposition and careful analysis of technical requirements of connecting rod, widely accessible on

the basis of relevant literature, worked out a basic link suitable for the actual production of new programmes and Line. At the same time, the author also focused on the design of the "open laser stress trough," "bulging off" the two processes of the fixture and process equipment.

Key words :Diesel engine,Technology of process, Clamping device of the splitting