Method of recognizing a screw hole and screwing method based on

Details Method of recognizing a screw hole and screwing method based on Method of recognizing a screw hole and screwing method based on

1996-04-10

2000-09-19

Boudreau, Leo H.

Image analysis

Applications

Manufacturing or product inspection

382151, 382199, 382282, 382291, 2940704, 2940709, 36446821, 36447435, 36416705, G06K 900, G06T 760, G01B 1108

Patent

active

061223980

ABSTRACT:
Deviation between an upper portion and a lower portion of a screw hole is recognized. This is accomplished by imaging holes in respective objects to obtain a contrast image. The position of the hole in the upper object and the lower object is detected. The deviation between the positions is calculated. Screws are tightened sequentially beginning with the hole having the smallest deviation. The rotation angle of the object to be tightened is determined. From this rotation angle, the deviation of other holes is calculated.

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