| 摘要 |
<p>According to one embodiment, a gripping device grips a rim of a workpiece by opening and closing gripping plates. The device includes a gripping unit, a hoisting and lowering unit and a motion control unit. The gripping unit includes a first and a second gripping plate. The first gripping plate has a first gripper to contact the rim. The second gripping plate has a second gripper to contact the rim. At least one of the first and second gripping plates is moved and the first and second gripper are spaced from each other. The hoisting and lowering unit is configured to hoist and lower the gripping unit. The motion control unit is configured to control open/close operations and hoisting and lowering operations. The motion control unit mechanically controls first first hoisting and lowering operations, controls second the open/close operations, and controls third second hoisting and lowering operations.</p> |
