Method for determining pick-up positions of electronic components
AssigneeSiemens Aktiengesellschaft
InventorsThomas Bachthaler, Hans-Horst Grasmueller, Thomas Liebeke, Michael Schwiefert
Life of this patent
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Abstract
A device and appertaining method for picking up devices in a component placement device permits even very small components and even a first component of a new belt to be picked up by scanning the structural features of the belt directly in the proximity of the components. The positional tolerances can be disregarded so that even the first component of a new belt can be reliably detected by the pick-up tool.
Claims7
1-7. (canceled)
A method of determining a pick-up position of electrical components in a component placement device for populating substrates with the components, which are made ready in pockets in a belt, comprising:
- inserting the belt into a feed module which delivers the components to a pick-up point in a defined pick-up position;
- removing the components from the pockets with a freely positionable component placement head;
- determining a location of centering marks in an area of the pick-up point using an image processing evaluation unit belonging to the component placement device;
- moving position-resolving scanning optics of the component placement head over the centering marks in the area of the pick-up point;
- aiming the scanning optics directly at the pockets;
- directly scanning structural features of the pocket serving as the centering marks;
- and
- calculating, utilizing the image evaluation unit, an average position of the pockets from a position of the structural features.
Dependencies are inferred from the claim text.