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1、青岛理工大学琴岛学院本科毕业设计说明书（论文）I摘 要机械制造业是制造具有一定形状位置和尺寸的零件和产品，并把它们装备成机械装备的行业。机械制造业的产品既可以直接供人们使用，也可以为其它行业的生产提供装备，社会上有着各种各样的机械或机械制造业的产品。我们的生活离不开制造业，因此制造业是国民经济发展的重要行业，是一个国家或地区发展的重要基础及有力支柱。从某中意义上讲，机械制造水平的高低是衡量一个国家国民经济综合实力和科学技术水平的重要指标。拨叉的加工工艺规程及其钻 4 孔、扩 4 孔至 6.5 孔、攻丝 M8 0.75-7H 的夹具设计是在学完了机械制图、机械制造技术基础、机械设计、机械工程材料
2、等进行毕业设计之后的下一个教学环节。正确地解决一个零件在加工中的定位，夹紧以及工艺路线安排，工艺尺寸确定等问题，并设计出专用夹具，保证零件的加工质量。本次设计也要培养自己的自学与创新能力。因此本次设计综合性和实践性强、涉及知识面广。所以在设计中既要注意基本概念、基本理论，又要注意生产实践的需要，只有将各种理论与生产实践相结合，才能很好的完成本次设计。本设计选用拨叉来进行工艺编制与夹具设计，以说明书、绘图为主，设计手册与国家标准为附来进行详细说明。关键词：切削用量 夹紧 定位 误差全套图纸，加青岛理工大学琴岛学院本科毕业设计说明书（论文）IIAbstractMachinery manufactu
3、ring industry is making a certain shape position and size of parts and products, equipment and put them into machinery and equipment industry. Machinery manufacturing products can be directly for the use, can also provide equipment for other sectors of social production, has a mechanical or mechanic
4、al manufacturing a variety of products. Our life is inseparable from the manufacturing industry, the manufacturing industry is an important industry of national economic development, is the important base and backbone of the development of a country or region. In some sense, the level of manufacturi
5、ng level is an important indicator to measure a countrys comprehensive economic strength and the level of science and technology.Fixture design process planning for fork and milling 2- 30 end, drilling, expansion, hinge 27H8 hole is teaching a link of graduation design in the studied mechanical draw
6、ing, mechanical manufacturing technology, mechanical design, mechanical engineering materials. A correct solution of a components in processing localization, clamping and the craft route arrangement, process dimensions are determined, and design a special fixture, spare parts processing quality assu
7、rance. This design is to develop self-study and innovation ability of their own. Therefore, the design of integrated and practical, wide range of knowledge. So in the design should not only pay attention to the basic theory, basic concepts, but also pay attention to the production needs of the pract
8、ice, only by combining the theory and production practice, the completion of the design can be very gooThis design uses the fork to process planning and fixture design, mainly to the specification, drawing, design manual and the national standard for attachment to a detailed description of.Keywords:
9、 cutting clamping and positioning error青岛理工大学琴岛学院本科毕业设计说明书（论文）目 录摘 要 .I1 概述发展 .11.1 机床夹具的主要功能 .11.2 机床夹具的组成 .11.3 夹具设计的步骤和基本要求 .12 零件的工艺设计 .132.1 零件的工艺设计 .132.2 工艺规程的设计 .133 加工设备与工艺装备的选择 .263.1 选择机床 .263.2 选择夹具 .264 零件铣床的夹具设计 .274.1 问题的提出 .274.2 定位基准的选择 .274.3 切削力与夹紧力的计算 .274.4 定位误差分析 .284.5 定位键与对刀装置的设计 .294.6 铣床夹具截图 .315 零件钻床的夹具设计 .335.1 问题的提出 .335.2 定位基准的选择 .335.3 切削力与夹紧力的计算 .335.4 定位误差分析 .335.5 钻套的设计 .345.6 钻床夹具截图 .
