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1、兰州交通大学毕业设计（论文）摘要凸轮是一具有曲面轮廓的构件，一般多为原动件（有时为机架） ；当凸轮为原动件时，通常作等速连续转动或移动，而从动件则按预期输出特性要求作连续或间隙的往复运动、移动或平面复杂运动。本文主要介绍凸轮的大体概念与凸轮廓线的设计计算，以及后期使用 Pro/E 软件仿真其廓线。凸轮轮廓曲线是凸轮机构设计的关键，常用的设计方法有解析法和图解法。本文将对这两这种方法进行大致分析与应用设计，利用 Pro/E 软件绘制凸轮机构实体模型，并用 Pro/E 软件自带的 Pro/MECHANICA Motion 插件设计凸轮机构运动模型，进行机构运动学仿真分析，可以较准确掌握机械产品零部
2、件的位移、速度和加速度等动力学参数，进而可分析机构动作的可靠性。主要技术要求为：熟悉凸轮设计基本原理及相关理论计算；凸轮机构运动仿真及受力分析；指定内容的翻译和 Pro/E 软件的熟练应用。本文将重点研究凸轮机构建摸，受力分析和运动仿真与分析。通过理论上的计算和研究，结合图解以及解析的方法，算出凸轮廓线的大致数据，用 Pro/E 软件将其绘制出，进行运动仿真，记录和研究其位移、速度和加速度等动力参数，最后分析出机构动作的可靠性。使以后工作中，可以更准确掌握机械产品零部件的动力方面个参数，减少事故的发生，降低设计的难度。关键词：凸轮；廓线设计；Pro/E；三维造型；仿真。兰州交通大学毕业设计（论
3、文）AbstractCam is a component with a surface profile is generally more dynamic pieces of the original (sometimes for the rack), when the cam piece to its original form, it is usually in a row for the constant rotation or move, and the follower output characteristics according to the requirements expe
4、cted for continuous or reciprocating motion of the space, move, or the complexity of sports plane.This paper mainly introduces the general concept of the cam and cam profile design and calculation, and the latter the use of Pro / E software simulation of its profile.Cam cam curve design is the key t
5、o the design of methods commonly used analytical method and graphical method. In this paper, two such methods will be more or less analysis and application design, use of Pro/E software cam solid model rendering, and Pro / E software comes with the Pro/MECHANICA Motion cam plug design movement model
6、, the kinematics Simulation can b a more accurate knowledge of machinery parts and components of displacement, velocity and acceleration, such as kinetic parameters, which can analyze the reliability of body movement.The main technical requirements are:familiar with the basic principles of cam desig
7、n and related theoretical calculation; cam mechanism motion simulation and stress analysis; specify the contents of the translation and Pro/e application software proficiency.This article will focus on cam modeling, stress analysis and motion simulation and analysis. Through theoretical calculations
8、 and research, combined with graphical and analytical methods, calculate the approximate convex contour data, using Pro/E software to draw, simulation exercise, record and study the displacement, velocity and acceleration and other dynamic parameters, Finally, the reliability of the agency action. S
9、o after work, can be more accurate machinery parts and components of the dynamic parameters, to reduce accidents, reduce the difficulty of design.Keywords:Cam, Profile Design ,Pro/E, Three-dimensional shape,Simulation.兰州交通大学毕业设计（论文）I目录1 绪论 .11.1 选题意义 .11.2 仿 真 技 术 的 发 展 .31.3 Pro/Engineer 在机械制造中的应用
10、.51.3.1 Pro/Engineer 软件介绍 .51.3.2Pro/E 在 我 国 机 械 行 业 中 的 应 用 .82 凸 轮 轮 廓 线 的 设 计 .102.1 绪 论 .102.2 凸轮机构的分类 .112.2.1 按两活动构件之间的相对运动特性分类 .112.2.2 按从动件运动副元素形状分类 .112.2.3 按凸轮高副的锁合方式分类 .112.3 从动件运动规律 .122.3.1 基本运动规律 .122.4 凸轮轮廓线的设计 .142.4.1 凸轮轮廓曲线的计算 .142.5 凸轮机构基本尺寸的确定 .172.5.1 凸轮机构的压力角及许用值 .172.6.2 凸轮理论轮廓的外凸部
