proe在车床夹具三维造型设计中的研究（本科毕业论文设计）.doc
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proe在车床夹具三维造型设计中的研究（本科毕业论文设计）,proe在车床夹具三维造型设计中的研究19200字 31页摘 要多年来，机械制造过程中把设计蓝图比喻成工程师的语言。对于机床专用夹具而言，也总是利用众多视图的不同投影来描绘。采用标注各种线条和符号绘图，不仅费时费力，而且一旦理解有误或形体表现出现偏差，将会影响产品的制造和质量。 采用计算机辅助设计方法，零件的造型如同车...
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PROE在车床夹具三维造型设计中的研究
19200字 31页
摘 要
多年来，机械制造过程中把设计蓝图比喻成工程师的语言。对于机床专用夹具而言，也总是利用众多视图的不同投影来描绘。采用标注各种线条和符号绘图，不仅费时费力，而且一旦理解有误或形体表现出现偏差，将会影响产品的制造和质量。
采用计算机辅助设计方法，零件的造型如同车间中加工零件的过程一样，设计完成以后，零件就“加工”出来了。这样不需要很强的空间想象力就可以设计出产品的真实三维模型，经过虚拟装配，可清楚地检验出产品结构的合理性.空间布置是否干涉等问题。造型结束后，将设计模型投影到二维图纸空间，就可自动生成工程图纸的三视图，轴侧图，剖视图等。大大方便了设计过程，形象直观易于接受，从而达到更快地设计机械产品。
本课题在探讨机床专用夹具的基本知识和机械制造工艺学基本理论的同时，研究如何利用PRO/ENGINEER设计专用夹具，以及如何利用PRO/ENGINEER对专用夹具进行三维建模，再进一步得到二维工程图,形成专用夹具计算机辅助设计系统。
关键字:模型,夹具,工艺学,工程图,三维建模
ABSTRACT
For long years, we have considered the design drawing as the engineers’ language in the mechanical manufacture process. For the machine tool jigs, we always use the views of different projections to represent them. It is a waste of time to use the method of labeling various lines and symbol drawing, furthermore, once misunderstanding or appearing deviation of body representing, the product’s quality and manufacture will be effected.
Using CAD method, the modeling of the part is the same as the process of machining part, the part will be machined once design accomplished. So it is possible to design the real 3-D model of the part without strong space imagination, and it is also possible to check out the rationality of the part’s structure and the problem of spatial arrangement interference and so on through virtual assembly. After model accomplished, the engineering drawing, axonometric drawing, and the cutaway view and so on will be created automatically by projecting the model onto 2-D paper space. It makes designing process very convenient, intuitive, acceptant, thus it is faster to design mechanical product.
In this paper, we will discuss the basic knowledge of the machine tool jig and the mechanical technology, at the same time, researching how to design specialized jigs and how to carry through three-dimensional modeling of specialized jig with the help of PRO/ENGINEER, so as to obtaining 2-D engineering drawing, forming the CAD system of the specialized jig.
Keywords: model, jig, technology, engineering drawing, 3-Dmodeling
目 录
中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 引言 1
1.2 PRO/ENGNIEER软件模块简介 1
1.3 本论文的研究目的、意义 3
2机械加工工艺规程设计 5
2.1分析研究被加工零件及零件图的绘制 5
2.1.1 明确任务、分析零件 5
2.1.2 零件工艺分析、绘制零件图 6
2.2选择毛坯，确定毛坯尺寸，设计毛坯图 7
2.2.1 选择毛坯 7
2.2.2 确定机械加工余量、毛坯尺寸和公差 8
2.2.3 确定机械加工余量 8
2.2.4 确定毛坯尺寸 10
2.2.5 确定毛坯尺寸公差 10
2.2.6 绘制毛坯图 11
2.3 选择加工方法、制定工艺路线 11
2.3.1 定位基准的选择 11
2.3.2 零件表面加工方法的选择 11
2.3.3 制定工艺路线 12
2.4工序设计 12
2.4.1 选择加工设备与工艺装备 12
2.4.2 确定工序尺寸 14
2.5 确定切削用量 14
2.5.1 切削用量的选择原则与步骤 14
2.5.2 切削用量的选择方法 15
2.5.3 零件各工序切削用量的确定 15
3 夹具设计 19
3.1 夹具设计的基本要求 19
3.2 工序简图的绘制 19
3.3 车床专用夹具设计 20
4 结论 26
4.1 完成本次设计首先需要具备的技能 26
4.2 论文研究成果 26
4.3 运用前景与展望 26
参考文献 27
19200字 31页
摘 要
多年来，机械制造过程中把设计蓝图比喻成工程师的语言。对于机床专用夹具而言，也总是利用众多视图的不同投影来描绘。采用标注各种线条和符号绘图，不仅费时费力，而且一旦理解有误或形体表现出现偏差，将会影响产品的制造和质量。
采用计算机辅助设计方法，零件的造型如同车间中加工零件的过程一样，设计完成以后，零件就“加工”出来了。这样不需要很强的空间想象力就可以设计出产品的真实三维模型，经过虚拟装配，可清楚地检验出产品结构的合理性.空间布置是否干涉等问题。造型结束后，将设计模型投影到二维图纸空间，就可自动生成工程图纸的三视图，轴侧图，剖视图等。大大方便了设计过程，形象直观易于接受，从而达到更快地设计机械产品。
本课题在探讨机床专用夹具的基本知识和机械制造工艺学基本理论的同时，研究如何利用PRO/ENGINEER设计专用夹具，以及如何利用PRO/ENGINEER对专用夹具进行三维建模，再进一步得到二维工程图,形成专用夹具计算机辅助设计系统。
关键字:模型,夹具,工艺学,工程图,三维建模
ABSTRACT
For long years, we have considered the design drawing as the engineers’ language in the mechanical manufacture process. For the machine tool jigs, we always use the views of different projections to represent them. It is a waste of time to use the method of labeling various lines and symbol drawing, furthermore, once misunderstanding or appearing deviation of body representing, the product’s quality and manufacture will be effected.
Using CAD method, the modeling of the part is the same as the process of machining part, the part will be machined once design accomplished. So it is possible to design the real 3-D model of the part without strong space imagination, and it is also possible to check out the rationality of the part’s structure and the problem of spatial arrangement interference and so on through virtual assembly. After model accomplished, the engineering drawing, axonometric drawing, and the cutaway view and so on will be created automatically by projecting the model onto 2-D paper space. It makes designing process very convenient, intuitive, acceptant, thus it is faster to design mechanical product.
In this paper, we will discuss the basic knowledge of the machine tool jig and the mechanical technology, at the same time, researching how to design specialized jigs and how to carry through three-dimensional modeling of specialized jig with the help of PRO/ENGINEER, so as to obtaining 2-D engineering drawing, forming the CAD system of the specialized jig.
Keywords: model, jig, technology, engineering drawing, 3-Dmodeling
目 录
中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 引言 1
1.2 PRO/ENGNIEER软件模块简介 1
1.3 本论文的研究目的、意义 3
2机械加工工艺规程设计 5
2.1分析研究被加工零件及零件图的绘制 5
2.1.1 明确任务、分析零件 5
2.1.2 零件工艺分析、绘制零件图 6
2.2选择毛坯，确定毛坯尺寸，设计毛坯图 7
2.2.1 选择毛坯 7
2.2.2 确定机械加工余量、毛坯尺寸和公差 8
2.2.3 确定机械加工余量 8
2.2.4 确定毛坯尺寸 10
2.2.5 确定毛坯尺寸公差 10
2.2.6 绘制毛坯图 11
2.3 选择加工方法、制定工艺路线 11
2.3.1 定位基准的选择 11
2.3.2 零件表面加工方法的选择 11
2.3.3 制定工艺路线 12
2.4工序设计 12
2.4.1 选择加工设备与工艺装备 12
2.4.2 确定工序尺寸 14
2.5 确定切削用量 14
2.5.1 切削用量的选择原则与步骤 14
2.5.2 切削用量的选择方法 15
2.5.3 零件各工序切削用量的确定 15
3 夹具设计 19
3.1 夹具设计的基本要求 19
3.2 工序简图的绘制 19
3.3 车床专用夹具设计 20
4 结论 26
4.1 完成本次设计首先需要具备的技能 26
4.2 论文研究成果 26
4.3 运用前景与展望 26
参考文献 27
