摘要 |
A method, system, and apparatus for aligning the index angle of a polar coordinate system device, such as the rotor of a centrifuge, with the vertical axis of a Cartesian coordinate system device, such as a robotic end-effector. The apparatus includes a first registration device, that is removably attached to the gripping means of the end-effector and a second registration device, that is removably insertable into a pivoting platform, such as a bucket to a centrifuge rotor. As the first registration device is lowered into the second registration device, the fixed orientation of the notches of the second registration device and the rigid nature of the first registration device cause a linear ball slide to displace and the bucket to rotate until the primary axis of the linear ball slide is in compliance with the cross pin axis of the first registration device. |