| 摘要 |
The invention relates to a positioning device (1) for positioning a workpiece (2) with a stand (5), which can be placed on a base (4), and a positioning table (11), on whose upper side the workpiece (2) can be directly or indirectly placed. The positioning table (11) can be arranged relative to the base (5) linearly and/or rotatory in at least two positions on planes defined by the upper side of the positioning table (11). Movement of the positioning table in a given direction occurs via at least two fine adjustment devices (15, 16) which are supported directly or indirectly by the base (5) and to which a driving force can be transferred, in particular by hand. In addition to being powered by the fine adjustment apparatus (15, 16), the positioning table (11) can also be powered by a driving force in particular a manual force which indirectly impinges on the positioning table (11), in particular by hand, with the purpose of effecting a rapid rough adjustment of the position of the table. |
