Title:
NOZZLE CENTERING DEVICE AND NOZZLE CENTERING METHOD FOR LASER PROCESSING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/176294
Kind Code:
A1
Abstract:
A beam displacement mechanism (galvanoscanner unit 32) causes a laser beam emitted via an opening of a nozzle attached to the tip of a processing head to be displaced. A light sensor (93) generates a sensor output value corresponding to the intensity of an incident laser beam. A beam displacement control unit (504) controls the displacement of the laser beam by the beam displacement mechanism. A center calculation unit (503), when the displacement of the laser beam due to the beam displacement mechanism is controlled by the beam displacement control unit (504) and at least three points at the edge of the opening have been irradiated with the laser beam, detects the positions of the at least three points on the basis of the sensor output value generated by the light sensor (93), and, on the basis of the detected positions of the at least three points, calculates the central point of the opening. The beam displacement control unit (504) controls the beam displacement mechanism so that the laser beam emitted via the opening is positioned at the central point calculated by the center calculation unit (503).
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Inventors:
YAMANASHI TAKAAKI (JP)
FUNAKI KOJI (JP)
FUNAKI KOJI (JP)
Application Number:
PCT/JP2019/001955
Publication Date:
September 19, 2019
Filing Date:
January 23, 2019
Export Citation:
Assignee:
AMADA HOLDINGS CO LTD (JP)
International Classes:
B23K26/035; B23K26/00; B23K26/04; B23K26/082
Foreign References:
| JPH07144289A | 1995-06-06 | |||
| JPH10249566A | 1998-09-22 | |||
| JPH05253685A | 1993-10-05 | |||
| JP2010531236A | 2010-09-24 | |||
| JPH04295711A | 1992-10-20 | |||
| JP2017148814A | 2017-08-31 | |||
| JP2010149159A | 2010-07-08 | |||
| JPH058068A | 1993-01-19 | |||
| JP2009262163A | 2009-11-12 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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