| 摘要 |
By moving supports A and C along respective tracks ( 3 ) and ( 4 ), the free end B of robot arm ( 2 ), with gripper ( 5 ), is caused to move along a path P, the locus of which may be varied by varying the movements of the supports A and C. Motors ( 6 ) and ( 7 ) are not carried on the robot arm ( 2 ), but are secured to the frame ( 10 ) of the device ( 1 ). The robot arm ( 2 ) may thus have very low mass, resulting in very high performance in terms of speed and efficiency. The path P may comprise a NURB curve, and the time-distance function of motion of end B of arm ( 2 ) along path P may comprise a polynomial function having first and second derivative (velocity and acceleration) continuous curves. |
