本科生毕业（设计）论文

        连杆铣槽夹具的设计

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 摘  要

连杆的作用是将活塞承受的力传给曲轴，并使活塞的往复运动转变为曲轴的旋转运动。连杆是由连杆体、连杆盖、连杆螺栓和连杆轴瓦等零件组成，连杆体与连杆盖分为连杆小头、杆身和连杆大头。连杆小头用来安装活塞销，以连接活塞。杆身通常做成“工”或“H”形断面，以求在满足强度和刚度要求的前提下减少质量。连杆大头与曲轴的连杆轴颈相连。一般做成分开式，与杆身切开的一半称为连杆盖，二者靠连杆螺栓连接为一体。 　　

机械制造业是国民经济的支柱产业，现代制造业正在改变着人们的生产方式、生活方式、经营管理模式乃至社会的组织结构和文化。生产的发展和产品更新换代速度的加快，对生产效率和制造质量提出了越来越高的要求，也就对机械加工工艺等提出了要求。 

在实际生产中，由于零件的生产类型、形状、尺寸和技术要求等条件不同，针对某一零件，往往不是单独在一种机床上用某一种加工方法就能完成的，而是需要经过一定的工艺过程。因此，我们不仅要根据零件具体要求，选择合适的加工方法，还要合理地安排加工顺序，一步一步地把零件加工出来。

关键词：连杆铣槽；夹具设计；夹具装配图

Abstract
　　The role of the piston rod is passed under the power of the crankshaft, piston and to the crankshaft of the reciprocating motion into rotational motion. Body by the connecting rod connecting rod, connecting rod cap, connecting rod bolts and connecting rod bearings and other parts, connecting rod connecting rod body and the connecting rod cap is divided into a small head, shaft and connecting rod. Connecting rod head is used to install the piston pin to connect the piston. Shaft is usually made of "workers" or "H" shaped cross-section, in order to meet the strength and stiffness requirements under the premise of reduced quality. Connecting rod is connected with the crankshaft connecting rod journal. Made separately from the general style, and cut half of the shaft is called rod cap, both connected by the connecting rod bolt as a whole.
　　Machinery manufacturing industry is a pillar industry, modern manufacturing is changing people's mode of production, lifestyle, business management model as well as social, organizational structure and culture. The development of production and product replacement accelerates, the ever-increasing demands on production efficiency and manufacturing quality, and also set forth requirements for the machining process.
　　A part in the actual production, due to the different parts of the production type, shape, size and technical requirements and other conditions often are not alone in one machine with a certain kind of processing can be done, but after a certain process. Therefore, we must not only in accordance with the specific requirements of the parts, select the appropriate processing methods, but also reasonable arrangements for processing the order, step by step parts processing.
　　
　　 Keywords: connecting rod slotting; fixture design; fixture assembly drawings;