凸轮

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

Several essential problems about the mechanism, such as the relations between cam angles and geometric parameters, the allowable values of some angular parameters, the equations of cam prole and the return motion of rocker AC, are solved.

关于这种机构的几个基本问题得到解决，如凸轮角度和几何参数的关系，一些角参数的允许值，凸轮的轮廓线和摇杆的回行运动的方程。

This paper presents a new method to determine the minimum basic circle radius of a plate cam with a roller follower by the allowable pressure angle, and gives the feasible region of geometrical parameters of the cam mechanism.

介绍按许用压力角确定滚子从动件盘形凸轮最小基圆半径的一种新的解析方法。同时给出凸轮机构几何参数的可行域

Using ratch cam intermittence shut-off mechanism,keeped parts on a carrier,and shut off after punching a certain length,through the concrete example,the structure principle,working process and design points of the ratch cam intermittence shut-off mechanism were introduced.

应用棘轮凸轮间歇切断机构，将制件留在一条载体上，构成一定长度后再切断成条状，通过具体实例，从棘轮凸轮间歇切断机构结构原理、动作过程、设计要点等方面作了介绍。

Considered the factor of damping,a single degree of freedom s dynamic model of the high-speed cam mechanism is established.Choosing the law of sine acceleration motion as the excitation function,a displacement and acceleration dynamic response equations of the main vibration phase and residual vibration phase,the working dynamic response change curve through the inferential reasoning working end movement equation is derived.The result is obtained that different period and damping ratio have different impact

建立了考虑阻尼因素的等效单自由度高速凸轮机构的动力学模型，以正弦加速度运动规律方程为激振函数，推导出了从动件系统主振段和余振段的位移和加速度动态响应方程并绘制出了动态响应变化曲线，得出了不同阻尼比和周期比对主振段和余振段的动态响应，从而为高速凸轮机构的合理设计提供了一定的理论依据。

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。

By which, a system of coordinates was built and radiuses vector against angles of conjugating cams were solved basing distance of two points.

通过对共轭凸轮从动件运动规律的分析，求出从动件摆动角度和凸轮转动角度之间的关系。

An investigation is made of the damping effect of EHD oil film in cam—tappet contact surface to the exciting vibration caused by error of cam profile.

在考察弹流油膜动力学效应的同时，讨论了凸轮—挺杆表面弹流油膜对由凸轮轮廓误差产生激振的阻尼作用。

The method of using B-spline interpolation for machining the arcuated indexing cam was presented and the relevant equipments were developed that improve the manufacturing quality of arc.

介绍了一种新的基于B样条曲线的弧面分度凸轮的设计与制造技术，给出了两种构造凸轮从动件运动特征曲线的方法优化设计法和拟合法。

After simulation and optimum design, the most proper cam curve of latching mechanism is obtained.

文章提出了凸轮曲线式卡槽机构的两种设计思路，制定了三种卡槽机构的初步设计方案，并对这三种不同的卡槽机构进行了仿真，发现了初步设计方案中存在的一些问题，最后在此基础上进行了优化改进，寻找到凸轮曲线式卡槽的最佳设计方案。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。