柴油机连杆工艺规程编制及机床和夹具毕业设计-1.doc

题 目： 柴油机连杆工艺规程编制及机床和夹具设计 摘 要 连杆是活塞式发动机和压缩机的主要零件之一，其大头孔与曲轴连接，小头孔通过活塞销与活塞连接，其作用是将活塞的气体压力传送给曲轴，又收曲轴驱动而带动活塞压缩汽缸中的气体。连杆承受的是冲击动载荷，因此要求连杆质量小，强度高。所以在安排工艺过程时，按照“先基准后一般”的加工原则。连杆的主要加工表面为大小头孔和两端面，较重要的加工表面为连杆体和盖的结合面及螺栓孔定位面。在夹具设计方面也要针对连杆结构特点比较小，设计应时应注意夹具体结构尺寸的大小等，最终就能达到零件的理想要求。 机械制造工艺及设备毕业设计是我们完成本专业学习计划的最后一个极为重要的实践性环节，是使我们综合运用所学过的基本课程，基本知识与基本技能去解决专业范围内的工程技术问题而进行的一次基本训练 。我们在完成毕业设计的同时，也培养了我们正确使用技术资料，国家标准，有关手册，图册等工具书，进行设计计算，数据处理，编写技术文件等方面的工作能力，也为我们以后的工作打下坚实的基础，所以我们要认真对待这次综合能力运用的机会！ 关键词： 连杆；变形；加工工艺；夹具设计 Abstract Connecting piston engines is one of the main parts and the compressor, the big holes and crankshaft connecting, small head holes through the piston pin connected with the pistons, its function is to send the gas pressure piston, and accept the crankshaft crankshaft piston compressor cylinder driving and driving the gas. The move is connecting rods quality requirements, therefore load of small, high strength. So in the process, according to the arrangement of general after the first base processing principle. The main processing surface is connecting holes and two end head size, more important for connecting the machined surface and the combination of cover and bolt hole position. In jig design and structural features for connecting smaller, should pay attention to the design review size of concrete structure clamp etc, can achieve the ideal requirements. Parts Mechanical manufacturing technology and equipment, we finished the graduation design is a professional study plans at the end of the practice is very important to us, is the comprehensive use of basic courses, we learned the basic knowledge and skills to solve major problems within the scope of the engineering technology and a basic training. We finished the graduation design, but also cultivate our correct use of technical data, and relevant national standards, pictures etc, manual tool design calculation, data processing, compile technical documents, etc, but also for our ability to lay a solid foundatio