联动夹紧铣床夹具设计说明书-大学毕业设计.doc

联动夹紧铣床夹具设计说明书-大学毕业设计（论文） Abstrct Graduation project is a comprehensive test of professional knowledge you learning in the university, but also is a comprehensive examination for a studentThe selected topic of this design is link clamping miller fixture design, the parts be processed is the infrastructure of jerk pump,there are many knowledge in this design,such as the metal-cutting machine tool,tolerance and fit,the common difference coordination and the survey and so. The technical schedule and the fixture design of the infrastructure of jerk pump include the technological design of parts processing,the working procedure design and the dedicated fixture design. In the first we should analysis of parts, understood the technology of the parts and designed the structure of blank,selected the die reference plane, designed the processing line; then counted the dimension size of the working procedure,the important is determined technological equipment and cutting data of the working procedure; Then designs the dedicated fixture, designs the part of the fixture, for example locates the part, clamps the part, guides the part, to clamp concrete and the engine bed connection part as well as other parts; Fixture design is based on the analysis of the parts, selects the appropriate setting element, the clamp part and so on, determine the grade of accuracy, satisfies the machining accuracy of the components. Position error which calculates the jig locates when produces, analyzes the jig structure the rationality and the deficiency, and will design in later pays attention to the improvement. The fixture design has many kinds of plans. In this design, v-block positioning, moving platen clamping, Clamped link clamping mechanism make the clamping in the same time and cause the clamping force equidistribution. This fixture design can improve the output rate, and the structure is simple, While saved the resources and improved the labor productivity. Keywords: the craft, the wor