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凸轮轴物流及其关键工装改进设计
摘要
我的毕业设计课题为“凸轮轴物流及中心架的改进设计”。在这里所说的物流是说中
心架的改进设计要考虑到车间的物流体系，改进后的中心架要与物流相配套，以适应东风
公司的大好发展形式。东风公司发动机厂正在进行物流、现场管理的各项改进活动。他们
把中心架的改进设计归纳在了物流方面了。物流是以适应顾客需要为目的，对从产地到消
费地的原材料、半成品、成品和与之相关信息的专业保管进行有效的计划、执行、管理等
一系列的过程。物流的具体活动一般表现为运输、存储、包装、装卸、流通加工以及相关
的信息活动。对凸轮轴的加工工艺过程来说，凸轮轴夹具的好坏对整个生产过程的效率有
着深刻的影响。原有的夹具已不能满足生产需要，所以必须对其进行改进。我着重对原来
夹具的夹紧系统进行了改进，该手动夹紧装置为气动夹紧装置，并对一些细微环节进行改
进。改进后的夹具不但效率得到了提高，而且适应性更强。
关键词：凸轮轴；中心架；物流；夹具；机构

The improving and designing for the key part in industry
assemble and the frame
Abstract
My graduation design task for " The improving and designing for the Camshaft logistics center
and the frame line " . Stand in the center of the logistics is said here to improve the logistics
system design should consider workshop , the improved center frame with logistics, so as to
adapt to the good development of dongfeng company form . Engine plant of dongfeng company
ongoing logistics , site management improvement activities . They reduce center frame design
improvements in the logistics.Logistics is to meet the need of customers for the purpose , from
the origin to the consumption of raw materials , semi-finished products , finished goods and
related information of professional care for effective planning , implementation , management
and so on a series of process .Logistics specific activities generally show the transport , storage ,
packaging , loading and unloading , circulation processing , and related information . For
processing technology course of the camshaft , the quality of the camshaft jig has deep influence
on the efficiency of the whole production process . The already existing jig can' t already meet
production's needs , so must improve it . I have focused on and improved the clamping system
of the original camshaft jig , should clamp manually in order to clamp pneumatically , and
improve some slight links . Improve jig after not only efficiency raise , but also adaptability
is stronger.
Key words:camshaft ; center frame ; logistics ; jig ; organization

目录
第一章绪论......................................................................................................1
1.1 研究的目的及意义............................................................................. 1
1.2 研究的背景......................................................................................... 1
1.3 国内外的现状及发展趋势..................................................................2
1.4 进行可行性分析及系统设计方案...................................................... 2
1.5 中心架的分析..................................................................................... 4
第二章 凸轮轴车间布局和凸轮轴加工工艺...................................................5
2.1 凸轮轴车间平面布局..........................................................................5
2.1.1 工厂的平面布置定义................................................................5
2.1.2 现场平面布置及物流初始状态介绍........................................ 6
2.2 凸轮轴的生产工艺流程与分析.......................................................... 6
2.2.1 凸轮轴的生产工艺......................................................................6
2.2.2 凸轮轴的生产流程....................................................................7
2.2.3 分析........................................................................................... 8
第三章 凸轮轴生产的改进............................................................................ 10
3.1 凸轮轴的车间布局改进....................................................................10
3.2 凸轮轴的生产工艺和流程的改进.................................................... 10
3.2.1 改造后的加工工艺...................................................................10
3.2.2 加工工艺的改进.......................................................................11
3.3 改变后的经济效益........................................................................... 12
第四章 凸轮轴加工动作分析........................................................................ 14
4.1 动作分析概况................................................................................... 14
4.2 动作分析实例................................................................................... 14
4.3 改进后的标准操作........................................................................... 16
4.4 改进的经济效益............................................................................... 18
第五章 凸轮轴的工艺概况............................................................................ 19
5.1 被加工零件的名称、编号、技术要求，以及加工工艺过程......... 19
5.2 本工序零件的工艺状况....................................................................20
第六章 中心架的改进方案............................................................................ 21
6.1 原中心架的有关情况........................................................................21
6.1.1 原中心架的定位原理................................................................ 21
6.1.2 原中心架的工作原理............................................................... 21
6.1.3 原中心架所存在的问题............................................................ 22
6.2 中心架的改进情况..........................................................................23
6.2.1 新中心架的概况、原理........................................................... 23
第七章 主要元件的设计.................................................................................. 25
7.1 磨削力的计算................................................................................... 25
7.2 新改进元件的设计........................................................................... 26
7.2.1 改进设计方案...........................................................................26
7.2.2 相应元件的设计.......................................................................27
7.2.3 结构改进.................................................................................. 27
7.3 外形尺寸的确定............................................................................. 273
第八章 中心架改进后可能带来的效益、总结与展望................................. 29
致谢........................................................................................................30
参考文献........................................................................................................... 31
附录................................................................................................................... 32