Tool wear measurement by machine vision

Details Tool wear measurement by machine vision Tool wear measurement by machine vision

1987-11-06

1989-07-04

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358101, 358106, H04N 718, G06K 900

Patent

active

048457639

ABSTRACT:
The disclosure reveals a computer vision technique to measure flank and crater wear of a single point cutting tool. This direct tool wear measurement method uses a microscope mounted camera to acquire an image of the tool. Special lighting of a face of the tool shows contrast of the wear region in the image. The image analysis is based on an interactive procedure utilizing a general purpose image processing system. A computer program calculates ten parameters to characterize flank and crater wear.

REFERENCES:
patent: 4493554 (1985-01-01), Pryor et aql.
patent: 4700224 (1987-10-01), Miyasaka et al.
Sata et al.; "Identification of Machine and Machining States by use of Pattern Recognition Technique", 16th CIRP International Seminar of Manufacturing Systems, 1984.
Maali et al.; "A Vision Based Technique for Automatic Tool Set-Up, Identification and Wear Measurement in CNC Lathe".

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