| 摘要 |
<p>The machine table (2) holding the work-piece is either attached to or integrated in the surface of a spherical base (3) accommodated in a complementary space (6) at a stator housing (5) and held in place by a ring (7). The surface of the sphere (3) is provided with several rows of permanent magnets (4) acting in combination with coils (9) located at the inner surface of the space (6) and connected to a control unit directing the motion of the sphere (3) in a preprogrammed way.</p> |
