1、 490QB 连杆铣分开面工序工装设计说明书 摘要： 连杆是汽车发动机中的主要传动机构之一， 连杆的作用是将活塞的往复运动变为曲轴 的选择转工作，并把作用在活塞组上的燃气压力传给曲轴。在发动机工作过程中，连杆受膨 胀气体交变压力的作用和惯性力的作用，所以，连杆除应具有组后的强度和刚度外，还应尽 量减小自身质量，以减少惯性力的作用。在机械制造工艺中，为了达到保证产品质量，改善 劳动条件，提高劳动生产效率及降低成本的目的，在工艺过程中，除机床等设备外还大量使 用着各种工艺装备。 它包括夹具、 模具、 刀具、 辅助工具及测量工具等。 在机械加工工艺中， 不同的夹具，不同的机床都会带来不同的误差，而连
2、杆的加工要求的精度等级较高，并且连 杆的加工精度直接影响柴油机的性能， 所以， 要做好机床夹具设计及某些工序的专用机床设 计至关重要，做好连杆的加工工艺以及部分组合机床设计在生产过程中具有很大的意义。 关键字：连杆；钻螺栓孔；夹具设计；四轴组合机床 Abstract： ：Automobile engine connecting rod is one of the main drive, the piston rod is the role of the crankshaft into the reciprocating motion of the choice of transfer work
3、 and the role of gas in the piston group pressure to pass on the crankshaft. Course of their work in the engine, connecting rod by the pressure of expanding the role of alternating air and inertia force, so, after linkage group in addition should have the strength and stiffness, but should also mini
4、mize their own quality, to reduce the inertial force effect. In the mechanical manufacturing process, in order to achieve to ensure product quality, improve working conditions, improve labor productivity and lowering the cost, in the process, in addition to tools and other equipment using a variety of things, a lot of technology and equipment. It includes tools and dies, tools, auxiliary tools and measuring tools. In the machining process, different fixtures, different machines will bring a diff
