METHOD FOR PICKING UP BEST POINT

PURPOSE:To provide a method for picking up the best point, whereby two electronic parts to be attracted are picked up at proper attracting positions. CONSTITUTION:The position center coordinates (x, y) of electronic parts 21-1, 21-2 are read from a process program and calculated. The distances (d1,...

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Bibliographic Details
Main Author WATANABE MICHIYUKI
Format Patent
LanguageEnglish
Published 04.10.1994
Edition5
Subjects
BASIC ELECTRIC ELEMENTS
CALCULATING
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CHAMBERS PROVIDED WITH MANIPULATION DEVICES
COMPUTING
COUNTING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HAND TOOLS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MANIPULATORS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PERFORMING OPERATIONS
PHYSICS
PORTABLE POWER-DRIVEN TOOLS
PRINTED CIRCUITS
SEMICONDUCTOR DEVICES
TRANSPORTING
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Summary:PURPOSE:To provide a method for picking up the best point, whereby two electronic parts to be attracted are picked up at proper attracting positions. CONSTITUTION:The position center coordinates (x, y) of electronic parts 21-1, 21-2 are read from a process program and calculated. The distances (d1, d2) from the centers of the electronic parts 21-1, 21-2 to the limit of an effective attracting range indicated by the diagonal lines are calculated from the data table of a prestored effective attracting range, and the distance between the respective centers of two attracting nozzles 14e-1, 14e-2 is prerecognized using a parts-recognition camera (not shown in the figure) and the deviation (error in distance) X of the center of the attracting nozzle 14e-2 from the center of the electronic parts 21-2 when the attracting nozzle 14e-1 is used as a reference is calculated. x1 is calculated using a formula: x1=(xdivided by (d1+d2))Xd1. The stopping position of a working head 14 is corrected rightwards (minus) by x1. When the deviation X is inward of the center of the electronic parts 21-2, the stopping position is corrected leftward (plus) by x1.
Bibliography:Application Number: JP19930069874