Title:
DEVICE AND METHOD FOR INSPECTING A PROCESSING NOZZLE IN A LASER PROCESSING MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/145518
Kind Code:
A1
Abstract:
According to the present invention, an imaging unit (30) captures an image of a laser beam emission surface at a processing nozzle (29) mounted to a leading end of a processing head (28) provided in a laser processing machine (100) while a laser beam is being emitted from a hole formed in the emission surface. On the basis of an image captured of the emission surface by the imaging unit (30), an image processing device (40) calculates values indicative of variations in the radius or diameter of the hole at multiple positions in an image region representing the hole. The image processing device (40) divides the values indicative of variations by a value proportional to the area of the image region so as to calculate an evaluation value for evaluating the shape of the hole. The image processing device (40) determines, according to the evaluation value, whether or not the processing nozzle (29) is in good condition.
Inventors:
SHIOJI NARUAKI (JP)
Application Number:
PCT/JP2016/088812
Publication Date:
August 31, 2017
Filing Date:
December 27, 2016
Export Citation:
Assignee:
AMADA HOLDINGS CO LTD (JP)
International Classes:
B23K26/00
Foreign References:
| JP2010149159A | 2010-07-08 | |||
| JP2005334922A | 2005-12-08 | |||
| JPH09168885A | 1997-06-30 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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