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Ⅰ.前言在现代机器中,低副平面机构仍然占有重要的位置,而在低副平面机构中,使用最多的还是二级机构和三级机构。本文只研究二级机构的运动设计问题。在二级机构中,也可能包含很多的的构件,本文只研究二级机构中最基本的,但是最重的四连杆机构,即包含一个原动件,一个二级组和固定件的机构。因为最复杂的二级机构事实上就是最基本的四连杆机构上再加上若干个二级组成功的,其设计方法和基本的四连杆机构的设计方法完全相同。
I. INTRODUCTION In modern machines, low-profile planar mechanisms still occupy an important position, while in the case of low-profile planes, the most commonly used are secondary and tertiary mechanisms. This article only studies the motor design issues of the second level agency. In the second-level agencies, may also contain a lot of components, this paper only to study the most basic of the second-level agencies, but the heaviest four-bar linkage, that contains a mover, a secondary group and the fixture body . Because the most complicated two-stage mechanism is in fact the most basic four-bar mechanism coupled with several second-stage groups, the design method is exactly the same as that of the basic four-bar mechanism.