公开(公告)号：US06336375B1

公开(公告)日：2002-01-08

申请号：US09599609

申请日：2000-06-23

申请人： David R McMurtry ,  Nicholas A James

发明人： David R McMurtry ,  Nicholas A James

IPC分类号： B25J1800

CPC分类号： B23Q1/5462 ,  B23Q1/626 ,  G05B2219/37275 ,  G05B2219/50162 ,  Y10T74/20305 ,  Y10T74/20335 ,  Y10T74/20341

摘要： A coordinate positioning machine comprises a fixed structure including a table and a supporting frame, rigidly connected together. A movable arm is suspended from the frame by means of three powered telescopic struts, each of which is universally pivotally connected to both the arm and the frame. As a consequence, the movable arm is able to move with three rotational degrees of freedom. Movement of the arm with each of these degrees of freedom is constrained by a passive device, connected to the arm and the fixed structure, and which eliminates all rotational movement of the arm, while simultaneously permitting translation thereof.

摘要翻译： 坐标定位机包括一个固定结构，包括一个刚性连接在一起的工作台和一个支撑框架。 可移动臂通过三个动力伸缩支柱悬挂在框架上，每个支撑杆通常可枢转地连接到臂和框架。 因此，可移动臂能够以三个旋转自由度移动。 具有这些自由度中的每一个的臂的运动受到连接到臂和固定结构的无源装置的限制，并且消除了臂的所有旋转运动，同时允许其平移。