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弹性连杆机构创成的轨迹因弹性变形而发生相对于所要求之轨迹的“失真”。在一些作者提出的设计方法中采用加大杆件截面积,提高系统刚度从而减小失真的方法来控制精度,这种方法会使机构的重量增加。本文利用这样一种思想来减小失真:使机构的几何尺寸,例如杆长、固定铰位置等,在原纯运动综合的基础上加以微量调整,从而使机构的弹性轨迹逼近所要求的机构轨迹。这是一种迭代型设计方法,文中给出了设计实
The trajectory created by the flexible link mechanism is “distorted” relative to the desired trajectory due to the elastic deformation. In some design methods proposed by some authors, the method of increasing the cross-sectional area of the rod and increasing the rigidity of the system to reduce the distortion is adopted to control the precision, which increases the weight of the mechanism. In this paper, the idea is used to reduce the distortion: the geometric dimensions of the mechanism, such as the length of the rod, the position of the fixed hinge and so on, are adjusted on the basis of the original pure motion synthesis so that the elastic trajectory of the mechanism approaches the required mechanism trajectory. This is an iterative design method, the design of the article is given