发明授权
- 专利标题: Coordinate positioning machine
- 专利标题(中): 坐标定位机
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申请号: US09599609申请日: 2000-06-23
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公开(公告)号: US06336375B1公开(公告)日: 2002-01-08
- 发明人: David R McMurtry , Nicholas A James
- 申请人: David R McMurtry , Nicholas A James
- 优先权: GB9403957 19940302; GB9418587 19940915; GB9425887 19941221
- 主分类号: B25J1800
- IPC分类号: B25J1800
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.