开合螺母加工工艺流程及车削夹具毕业设计论文 联系客服

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第4章 结论

近半年的毕业设计至此行将结束,在此次设计中,我完成了对开合螺母结构、工艺的分析,并且基于这些分析完成设计了一整套合理的加工工艺过程,在夹具方面,通过力学方面的计算,查阅图册,设计手册,以及前人的一些设计最终完成了一套合理的车床夹具。

在这半年的毕业设计过程中我收获良多,尤其对于工艺流程的设计、读图、识图、制图的能力有了非常大的提升,这次设计更将我大学四年中机械制造、机械设计方面的知识融会贯通,对书本上的知识有了一次更加透彻的理解。

在这半年的设计过程中,我参阅了很多相关设计手册、设计案例以及各种文献资料。这些文献资料都是前人对于这个行业的理解与实践过程,通过对比和参照可以使我的设计更加便于应用,对我的设计有着举足轻重的帮助。在查阅和查找的过程中更提升了我对文献的搜集能力。同时培养了我严谨的设计态度,设计中每个结构的设计、材料、数据的选用都必须严格遵守机械设计手册的规定。

此次毕业设计给我一次工程师的培训,让我树立了正确的设计思想,初步掌握了工程设计的手段与方法。相信此次经历会给我今后的生活以及工作带来巨大的影响。

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致谢

通过这一段时间的学习设计,让我巩固了大学所学的专业知识,更锻炼了自己的设计能力,更培养了我独立思考的能力,使我收获颇丰。

再此要对指导我完成设计的李红梅老师致以最高的敬意,她思维严谨,态度认真,在多次的讨论和汇报中指出我设计中的不合理之处,并提出修改意见,使我的设计逐渐趋于完善。

最后要感谢在这次设计过程中帮助过我的老师、工厂师傅以及同学们。你们无私的帮助,是我完成毕业设计的过程中重要的助力!

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参考文献

[1] 陈明主编.机械制造工艺学.北京:机械工业出版社,2005 [2] 赵如福主编.机械加工工艺手册.上海:上海科学技术出版社,2009 [3] 尹成湖等主编.机械制造基础课程设计.北京:高等教育出版社,2009 [4] 吴拓主编.现代机床夹具设计.北京:化学工业出版社,2009 [5] 王小华主编.机床夹具图册.北京:机械工业出版社,1991 [6] 杨可桢等主编.机械设计基础.北京:高等教育出版社,2011 [7] 席伟光等主编.机械设计课程设计.北京:高等教育出版社,2009 [8] 王伯平主编.互换性与测量技术.北京:机械工业出版社,2011 [9] 陈宏钧主编.实用金属切削手册.北京:机械工业出版社,2005

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附录 外语文献译文

英文原文

Cams

Various motions can be produced by the action of a cam against a follower.Mamy timing devices are operated by can action.The purpose of andy cam is to produce a displacement of its follower;a secondary follower is often .used to produce additional displacement in another location.The most popular type is the plate cam.The cylindrical type is used to transmit linear motion to a follower as the cam rotates.Three-dimensional cam are sometimes used;these provide some unusual follower motions,but also make follower design difficult.The camshaft in the automotive engine illustrates a simple but important application of a late cam.The cam assemblies in automatic record players illustrate a somewhat more complex application.

Cam profiles are accurately constructed by either praphical or mathematical methods.The transition from development drawings to working (shop) drawing can be made in several ways:

1.Make a full-scale template.This is desirable from the manufacturing standpoint,but it will not guarantee accurate cam profiles.

2.Use radial dimensions.This is fairly accurate,but sometimes produces layout problems in the shop.

3.Use coordinate dimensioning.This procedure will ensure accuracy.

In selecring one of these methods,one should consider the function of the cam in terms of desired preciseness.

Because the cam work outline already determined, therefore the cam structural design mainly was determines the curve outline axial thickness and the cam and the drive shaft connection way. When the work load compares the hour, curve outline axial thickness generally takes for the outline curve biggest radius of vector 1,/10 ~/5; Regarding a stress bigger important situation, must with carry on the design

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