Title:
LASER MACHINING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2008/001808
Kind Code:
A1
Abstract:
Detection of the three-dimensional shape of a work, enhancement of the precision
of the focal point position of a machining laser beam, and compaction of a laser
beam machining apparatus are realized. The laser beam machining apparatus
(10) operates as follows. While a laser beam output section driver (46) is moving
a work (12) from a position near a laser beam output section (22) to a far position,
the work (12) is sequentially imaged with a camera (34). Best focused point detection
data is extracted from pixels in positions corresponding to best focused point
detection positions (P1-n) predetermined in the captured images.
A best focused point detection waveform (W) based on the variation of the best
focused point detection data is formed for each best focused point detection
position (P1-n). The peak values (PK) of the best focused detection
waveforms (W) in the best focused detection positions (P1-n) determined
from the best focused detection waveforms (W) are compared with one another so
as to judge the acceptance/rejection of the work (12). If the work is acceptable,
the laser beam output section (22) is moved to the best focused position to perform
laser beam machining; contrarily if the work is rejected, the laser beam is not
emitted.
Inventors:
WATANABE SHINJI (JP)
MATSUDA YOSHIO (JP)
YAMASHITA HIROKI (JP)
MATSUDA YOSHIO (JP)
YAMASHITA HIROKI (JP)
Application Number:
PCT/JP2007/062903
Publication Date:
January 03, 2008
Filing Date:
June 27, 2007
Export Citation:
Assignee:
O M C CO LTD (JP)
WATANABE SHINJI (JP)
MATSUDA YOSHIO (JP)
YAMASHITA HIROKI (JP)
WATANABE SHINJI (JP)
MATSUDA YOSHIO (JP)
YAMASHITA HIROKI (JP)
International Classes:
B23K26/00; B23K26/03
Foreign References:
| JPS571594A | 1982-01-06 | |||
| JPH01107990A | 1989-04-25 | |||
| JPH0553786U | 1993-07-20 | |||
| JPH1123952A | 1999-01-29 | |||
| JP2000263273A | 2000-09-26 | |||
| JP2000326085A | 2000-11-28 | |||
| JP2002321080A | 2002-11-05 | |||
| JP2004066340A | 2004-03-04 |
Attorney, Agent or Firm:
MORI, Yoshiaki (Osaka-EkimaeDai-4 Bldg., 11-4, Umeda 1-chome,Kita-ku, Osaka-sh, Osaka 01, JP)
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