发动机凸轮轴新物流及中心架的改进设计.doc
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发动机凸轮轴新物流及中心架的改进设计,17800字 38页摘要凸轮轴是整个发动机的核心部件之一，它控制着发动机各气门进排气的准确性，而当今的发动机的设计以及关键技术已经从机构的设计转变为高科技的精密设计上了。随着人们环境意识的不断增强，人们对汽车的尾气排放提出了更高的要求，怎样提高燃料在发动机燃烧室的燃烧率，已经成为当前...
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发动机凸轮轴新物流及中心架的改进设计
17800字 38页
摘要
凸轮轴是整个发动机的核心部件之一，它控制着发动机各气门进排气的准确性，而当今的发动机的设计以及关键技术已经从机构的设计转变为高科技的精密设计上了。随着人们环境意识的不断增强，人们对汽车的尾气排放提出了更高的要求，怎样提高燃料在发动机燃烧室的燃烧率，已经成为当前汽车攻关的主要方向。目前对凸轮轴和中心架虽然已有一定实验与理论研究，但是仍然存在三个关键问题：一是中心架适应性较差，它只能加工特定的加工对象，不能很好的满足加工多个品种的需要。二是中心架支撑块对凸轮轴的支撑是直接顶住，摩擦非常严重，加大了产品加工过程当中的表面被刮伤的可能性。三是中心架在加工过程中采用弹簧来始终保持支撑块对产品的支撑，弹簧随产品的直径变小不断伸长，弹簧的弹力也会不断的减小，即对产品的支撑力也不断减小，使得产品的加工质量受到严重影响。为此，本设计研究的主要内容是对凸轮轴的加工工序以及作为辅助装置的中心架进行一定的改进设计，以很好的解决以上问题，使发动机的产品质量和生产效率均得到显著提高。
本设计主要研究内容及其创新性工作如下：
1、针对现有的凸轮轴物流和中心架存在的缺陷，根据凸轮轴和中心架工作原理，探索设计一种改进的，性价比更高的凸轮轴加工工序以及作为辅助装置的中心架。
2、针对目前生产流程路线上存在许多诸如交叉、倒流和搬运次数过多，搬运距离太长的现象，改进凸轮轴车间布局和凸轮轴加工工艺，并重新对车间的设备方位进行调整，加以解决。
3、运用一个表面焊有YG6物质的磙子代替当前的焊块，改目前的滑动摩擦为滚动摩擦，以达到减小摩擦力和减少工件表面刮伤的可能性问题。
关键词：凸轮轴，物流，中心架，生产工艺，结构改进
The improved design for the engine camshaft’new logistics
and the center frame
Abstract
Camshaft is one of the most important parts in the engine, it controls the engine the accuracy of the valve inlet and exhaust, and today's engine design and key technology has change from the design of the institutions to the high-tech precision design.Along with the people unceasing enhancement in environmental consciousness, people on car exhaust emission is put forward higher requirements, how to increase the rate of fuel combustion in the engine combustion chamber, has become the main direction of the current automobile research.At present although for camshaft and center frame has certain experimental and theoretical research, but there are still three key problems: The first is that center frame’s adaptability is poorer, it can only be machining specific object, not very good to satisfy the needs of processing varieties.The second is that center frame’s support piece of support for the camshaft is directly to resist, friction is very serious, increased the product processing process of the possibility of surface is scratched.The third is that Center frame used in the process of machining the spring to keep support to product support, the spring with smaller diameter of the product unceasingly elongates, the decrease of the elastic spring will also constantly, the support for the product has been reduced, makes the product processing quality is severely affected.To this end, the main content of this design research is the machining process of the camshaft and as auxiliary device at the center of the frame to certain design improvements, in a very good solve the above problem, the engine of the product quality and production efficiency are improved significantly.
This design research contents and innovative work is as follows:
1. Camshaft and logistics center for the existing defects, according to the working principle of the CAM shaft and the center frame, explore the design of an improved, higher cost performance camshaft machining process as well as the center of the assist device.
2. Based on the current production process route as there are many such as cross, put back the clock and the number of handling too much, and transport distance is too long phenomenon, improve the camshaft workshop layout and camshaft processing technology, equipment of workshop and azimuth adjustment, addressed.
3. Using a stone roller surface welding with YG6 material to replace the current welding pieces, change the current sliding friction into rolling friction, in order to achieve reduce friction and reduce the possibility of surface scratch problem.
Key words： Camshaft；Logistics；Center frame ；Improved structure；Production process
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 2
1.3国内外的现状及发展 2
1.4进行可行性分析及系统设计方案 3
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（原工艺） 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
3.3.3物流改进后的经济效益 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..
17800字 38页
摘要
凸轮轴是整个发动机的核心部件之一，它控制着发动机各气门进排气的准确性，而当今的发动机的设计以及关键技术已经从机构的设计转变为高科技的精密设计上了。随着人们环境意识的不断增强，人们对汽车的尾气排放提出了更高的要求，怎样提高燃料在发动机燃烧室的燃烧率，已经成为当前汽车攻关的主要方向。目前对凸轮轴和中心架虽然已有一定实验与理论研究，但是仍然存在三个关键问题：一是中心架适应性较差，它只能加工特定的加工对象，不能很好的满足加工多个品种的需要。二是中心架支撑块对凸轮轴的支撑是直接顶住，摩擦非常严重，加大了产品加工过程当中的表面被刮伤的可能性。三是中心架在加工过程中采用弹簧来始终保持支撑块对产品的支撑，弹簧随产品的直径变小不断伸长，弹簧的弹力也会不断的减小，即对产品的支撑力也不断减小，使得产品的加工质量受到严重影响。为此，本设计研究的主要内容是对凸轮轴的加工工序以及作为辅助装置的中心架进行一定的改进设计，以很好的解决以上问题，使发动机的产品质量和生产效率均得到显著提高。
本设计主要研究内容及其创新性工作如下：
1、针对现有的凸轮轴物流和中心架存在的缺陷，根据凸轮轴和中心架工作原理，探索设计一种改进的，性价比更高的凸轮轴加工工序以及作为辅助装置的中心架。
2、针对目前生产流程路线上存在许多诸如交叉、倒流和搬运次数过多，搬运距离太长的现象，改进凸轮轴车间布局和凸轮轴加工工艺，并重新对车间的设备方位进行调整，加以解决。
3、运用一个表面焊有YG6物质的磙子代替当前的焊块，改目前的滑动摩擦为滚动摩擦，以达到减小摩擦力和减少工件表面刮伤的可能性问题。
关键词：凸轮轴，物流，中心架，生产工艺，结构改进
The improved design for the engine camshaft’new logistics
and the center frame
Abstract
Camshaft is one of the most important parts in the engine, it controls the engine the accuracy of the valve inlet and exhaust, and today's engine design and key technology has change from the design of the institutions to the high-tech precision design.Along with the people unceasing enhancement in environmental consciousness, people on car exhaust emission is put forward higher requirements, how to increase the rate of fuel combustion in the engine combustion chamber, has become the main direction of the current automobile research.At present although for camshaft and center frame has certain experimental and theoretical research, but there are still three key problems: The first is that center frame’s adaptability is poorer, it can only be machining specific object, not very good to satisfy the needs of processing varieties.The second is that center frame’s support piece of support for the camshaft is directly to resist, friction is very serious, increased the product processing process of the possibility of surface is scratched.The third is that Center frame used in the process of machining the spring to keep support to product support, the spring with smaller diameter of the product unceasingly elongates, the decrease of the elastic spring will also constantly, the support for the product has been reduced, makes the product processing quality is severely affected.To this end, the main content of this design research is the machining process of the camshaft and as auxiliary device at the center of the frame to certain design improvements, in a very good solve the above problem, the engine of the product quality and production efficiency are improved significantly.
This design research contents and innovative work is as follows:
1. Camshaft and logistics center for the existing defects, according to the working principle of the CAM shaft and the center frame, explore the design of an improved, higher cost performance camshaft machining process as well as the center of the assist device.
2. Based on the current production process route as there are many such as cross, put back the clock and the number of handling too much, and transport distance is too long phenomenon, improve the camshaft workshop layout and camshaft processing technology, equipment of workshop and azimuth adjustment, addressed.
3. Using a stone roller surface welding with YG6 material to replace the current welding pieces, change the current sliding friction into rolling friction, in order to achieve reduce friction and reduce the possibility of surface scratch problem.
Key words： Camshaft；Logistics；Center frame ；Improved structure；Production process
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 2
1.3国内外的现状及发展 2
1.4进行可行性分析及系统设计方案 3
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（原工艺） 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
3.3.3物流改进后的经济效益 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..
