基于PRO_E的凸轮机构结构设计及其运动仿真分析_毕业设计正文.doc

┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ 装 ┊ ┊ ┊ ┊ ┊ 订 ┊ ┊ ┊ ┊ ┊ 线 ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ 湖北文理学院 毕业设计(论文)正文 题 目 基于PRO/E的凸轮机构结构设计及其运动仿真分析 专 业 机械设计制造及其自动化 班 级 姓 名 学 号 指导教师 职 称 基于Pro/E的凸轮机构的结构设计及其运动仿真分析 摘要 ：凸轮机构是机械中一种常用的机构，它结构简单，紧凑，工作可靠，设计方便，利用不同的凸轮轮廓线可以使从动件实现任意给定的复杂运动规律。同时它兼有传动，导向和控制机构的各种功能和优点。因此在包装机，纺织机，印刷机，内燃机以及农业机具等具有广泛的运用。传统的凸轮设计有图解法和解析法，图解法形象直观，结构简单，但是手工作图选取的等分数有限，误差较大，较繁琐。解析法设计虽然解决了凸轮设计的精度问题，但是要得到完整的凸轮轮廓线需要建立复杂的数学公式，编制复杂的程序，编程和计算工作量大。总之，传统的运动分析法是一种间断的，静态的分析方法。本文利用Pro/E强大的三维实体建模功能，建立凸轮机构的装配模型，然后进行运动学分析，仿真凸轮机构的运动情况，最后将所设置的构件的位移，速度，加速度变化情况以表格形式输出，通过修改仿真模型的参数，快速的修改和优化设计方案。 关键词：凸轮机构；Pro/E；三维建模；运动仿真。 The cam mechanism based on Pro/E structure design and kinematics simulation analysis Abstract: the cam mechanism is a kind of commonly used mechanical mechanism, it has the advantages of simple structure, compact structure, reliable work, convenient design, using different cam contour line allows the follower to realize any given motion law of complex. At the same time it has the drive, guide and control mechanism of the various features and advantages. So in the packaging machine, textile machine, printing machine, internal combustion engines and agricultural machinery is widely used. The traditional cam design graphic method and analytic method, graphical method is visual, simple structure, but the chart manually selected score is limited, the error is large, complex. Analytic design method solves the problem of precision cam design, but to get the full cam contour line need to build a complex mathematical formula, the preparation of complex procedures, programming and calculation. In short, the traditional motion analysis is a kind of discontinuous, static analysis method. In this paper, using Pro/E powerful3D entity modeling function, establish the cam assembly model, then analyses the kinematics simulation of cam mechanism, motion, the setting member of disp