凸轮机构

Cam mechanism;Servo control system;Cam-follower system;Variable-speed cam system;Motion characteristic;Angular velocity

中文关键字凸轮机构；伺服控制系统；凸轮从动件系统；变速凸轮系统；运动特性；角速度

The welding process of the butt welding machine used to weld bicycle joints employs a cam transmission mechanism. Its procedure is decided by the contour of the cam.

自行车接头对焊机焊接过程的进行采用凸轮机构控制，焊接过程由凸轮的外廓形状所决定。

Some examples are given in this dissertation. First, the coordinate values of a group of discrete points on the cam profile are achieved by conventional design method which are then used as measured data of the cam profile. Then the kinematic analysis of the cam mechanism is performed by the method developed in this paper. The reverse results are compared to the theoretic values.

本文以已知从动件运动规律的凸轮机构为例，利用正设计方法求出凸轮实际廓线一组离散点坐标值，并以此作为凸轮检测数据，运用本文提出的分析方法进行运动反求，并将反求所得结果与理论结果加以分析比较。

The errors analysis model is also selected, the equations of the mechanical errors analysis of the planar cam mechanical are derived by taking mechanical errors as stochastic variable.

本文对凸轮机构的各原始误差对从动件输出的影响作了系统分析，建立了凸轮机构误差对输出性能影响的通用分析力学模型。

The crank and connecting rod mechanism, the cam mechanism and the eccentric wheel mechanism are used to transform the continuous movements into the reciprocal movements, yet these mechanisms have no constant transmission ratio and there exist rather large impact force while operating at high speed.

曲柄连杆机构、凸轮机构和偏心轮机构常用来将连续运动转化为往复运动，但这些机构没有恒定的传动比，高速运转时存在较大的冲击力。

Based on the working principle of the OCT system, the theoretical analysis on several longitudinal scanning measures, including piezoelectric transition scanning, rotating mirror array scanning, femto-laser scanning and manufactured cam wheel transmission of OCT system were made.

基於光学相干层析系统工作原理，对OCT系统的几种纵向扫描方式包括压电跃变方式扫描、旋转反射镜阵列扫描、飞秒激光器扫描以及自行设计研制的凸轮机构扫描方式进行了详细的理论分析，并对凸轮扫描机构进行了实验研究，对这几种扫描方式的优缺点做了比较，对提高纵向分辨率的因素进行了讨论。

Then a solution of CAD/CAM of the camis put forward. The following work has been completed. Based on analysis of transmission, structure and profile formation principle of thecam, the basic kinematic formula of the gear indexing cam mechanism isdeduced. Furthermore the space meshing contact equation of cam profile and theroller is formulated.

在此基础上提出了弧面分度凸轮的CAD/CAM解决方案，论文得到如下主要结论：在对弧面分度凸轮传动形式、结构和廓面成形理论分析的基础上，推导出了弧面分度凸轮机构的基本的运动学公式，凸轮廓面与滚子的空间共轭接触方程。

In view of each type of Cam Mechanism, the corresponding programming has been carried on to solve the problem of the visual input of the knife-edge, the roller, the flat-face base translating follower and oscillating follower plate Cam Mechanism.

针对凸轮机构的各种类型，进行了相应的程序编制，解决了尖顶、滚子、平底直动从动件和摆动从动件的盘形凸轮机构可视化输入，实现了自动化设计和参数化绘图。

The clearance cause more serious effect on the response of turret than that of the rotary table. This result agrees with the experimental response of roller gear indexing cam mechanism. In addition, some problems, such as the impacts on mechanism with clearance, effect on response for preload, effect for inertia of rotary table and stiffness of output-shaft, effect on wave of velocity and torsion for motor characteristic, and so on are investigated.

通过对扭转动力学模型的计算还对以下问题进行了研究：间隙造成的横越冲击的表现；预紧的存在对响应的影响；间隙的存在对有廓形误差的凸轮机构的动力学响应的影响；分度盘轴的刚度和载荷盘惯量对含间隙分度凸轮机构响应的影响；电机特性对转速波动和扭矩波动的影响等等。

Basing on the moving characteristic of the brace Elbow-bar mechanism, using the rocker as the cam mechanism's driven component, an innovation design project of the cam contour was gotten.

2根据曲轴双肘杆机构的运动特点，把下肘杆作为凸轮机构的从动件，设计出凸轮轮廓。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。