Pick and place machine with workpiece motion inspection
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United States of America Patent
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Apr 27, 2010
Issued Date -
N/A
app pub date -
Nov 1, 2004
filing date -
Nov 7, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments include measuring motion characteristics of the workpiece through the placement process. Since the component is placed on the workpiece with some force to ensure proper adhesion to the workpiece, some deflection of the workpiece is expected during the placement cycle. The placement force is adjusted to ensure that the component is safely placed into the solder paste or adhesive. Placement force is adjusted through a number of characteristics including: choice of spring tension in the nozzle; the length of the nozzle and the amount of over-travel into the board; the rigidity of the board and design; and the placement of the board support mechanisms. With proper adjustment of these characteristics and parameters, high quality placements onto the workpiece can be ensured.
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Cited Art Landscape
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