| 摘要 |
<p>Disclosed is a table driving apparatus adapted for use with an automatic mounting apparatus or assembling robot comprising a working table ( 1 ) movable in at least one direction, and a direct-drive motor ( 13, 15, 30 ) having a rotary arm ( 11, 16 ). A mechanism ( 5, 6, 10, 17 ) is provided for mechanically coupling the working table ( 1 ) and the rotary arm in such a manner that turning movement of the arm can be converted into linearly sliding movement of the working table along the one direction. The direct-drive motor ( 13, 15, 30 ) is coupled with the working table with such a small compliance that the resonance frequency of a system including the direct-drive motor and a load coupled therewith lies out of a frequency range within which the direct-drive motor is operable. This arrangement assures a rigid coupling between the direct-drive motor and the working table with a small compliance, so that the resonance frequency becomes much higher than otherwise coupled, thus enabling a stable and precise driving of the working table.</p> |
