| 摘要 |
<p>A pick-up head especially for use in a machine for placing electrical components on a substrate comprises a tool holder having means for interchangeably mounting a pick-up tool with a datum face of the tool located at one of a plurality of predetermined positions relative to a datum position when the tool holder is at the datum position: this is achieved by providing tools having noses of different lengths. The pick-up head further comprises a plurality of orienting jaws mounted for movement towards and away from a component carried by and abutting the datum face of the tool when the holder is in the datum position whereby the jaws can engage the component to orient the component. The jaws have a plurality of spaced sets of cooperating datum faces disposed generally transversely to the plane of the datum face of the tool in the holder, each set of datum faces being disposed so as to be capable of orienting a component carried by a corresponding tool having its datum face located relative to the datum position of the holder at a corresponding one of said predetermined positions. A machine including the pick-up head comprises a tool support for supporting a plurality of tools and the machine is arranged so that tools carried by the pick-up head may be interchanged with tools in the tool support dependent upon the components which are to be handled. A wide range of component sizes can be handled using the single pick-up head.</p> |
