（毕业设计论文）《105高速柴油机连杆胀断工艺设计》.doc

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主要部件之一，它决定着发动机的性能和运行的稳定性。随着科学技术的发展与进步，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主要研究内容，以连杆的胀断工艺为主要研究方向。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。方案特别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，制定出了一条基本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 绪论 1.1 前言 连杆在发动机中作为改变力的传递方向和方式最重要的零部件之一，用于各种发动机上，其大头孔与曲轴连接，小头孔通过活塞销与活塞连接，将作用于活塞的气体膨胀压力的直线运动传给曲轴转变为旋转运动（图1.