| 摘要 |
The invention discloses a modular rectangular stator or platen for planar motors (sometimes referred to as planar linear motors) which is in light weight tile form, permitting multiple platens to be temporarily joined together in an ensemble to provide a continuous stator for a plurality of planar motors operating thereon. Provision is made for the array of operative features of the platen tiles to be strictly parallel to the platen tile edges and for the rows of operative features to be strictly positioned with respect to the platen tile edges, thereby permitting a continuous, unbroken pattern of operative features across the interface crack between conjoined tiles. Provision is made for supporting and adjusting the height of tiles above the floor, as well as their levelness, by a plurality of precision height adjusters preferably using a differential mechanism. Further provision is made for mechanically clamping together mating tiles at their edges with first and second precision reference surfaces, ensuring co-planarity of platen tile operative surfaces and lateral alignment of platen tile edges. Still further provision is made for joining three platen tiles together at their corners, permitting large ensembles with L- and T-junctions. The invention of field-joinable platen tiles for planar motors allows the creation of flexible precision motion systems of arbitrary extent incorporating multiple planar motors which can cross from tile to tile over the interface cracks between tiles.
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