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Title:
APPARATUS FOR MEASURING DIRECTION OF NORMAL LINE AND MEASURING OF DIRECTION OF NORMAL LINE
Document Type and Number:
Japanese Patent JPH0357910
Kind Code:
A
Abstract:
PURPOSE:To decide the direction of a normal line of a curved surface such as a working surface of a three-dimensional work by setting a reference point on curved surface, and setting at least three measuring points in the vicinity of the reference point on the curved surface. CONSTITUTION:Such reference point setting means to set a reference point CP on a curved surface of a working surface 66a of a work 66 as a filler 41, a reference laser oscillator, a reference optical fiber, etc., are provided. At least three measuring points P are set in the vicinity of the reference point CP on the curved surface. Moreover, a laser oscillator 42A, a photodetector 42B, and distance measuring means such as a measuring optical fiber, a projecting optical fiber, a photodetecting optical fiber, etc., are provided to measure the position of a distance L, or the like of each measuring point P. Based on the position of the measuring point P, a virtual plane 65 is set including the measuring point P. A normal line direction operating part operates the direction of a normal line, for example, a normal line vector N of the virtual plane 65. The direction of a normal line at the reference point CP on the curved surface is calculated proximately as the direction of the normal line of the virtual plane 65 regulated by the measuring point P set in the vicinity of the reference point CP. Accordingly, the direction of the normal line at a predetermined position on the curved surface can be detected.

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Inventors:
KANEMATSU HIROYUKI
INUKAI KAZUMASA
CHIYOKURA MORISHIGE
Application Number:
JP19516689A
Publication Date:
March 13, 1991
Filing Date:
July 27, 1989
Export Citation:
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Assignee:
YAMAZAKI MAZAK CORP
International Classes:
G01B11/26; B23K26/02; B23Q35/128; G01B21/20; (IPC1-7): B23K26/02; B23Q35/128; G01B11/26; G01B21/20
Attorney, Agent or Firm:
Shinji Aida (1 outside)



 
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