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Title:
SHAPED STEEL SQUARENESS MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2015197431
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shaped steel squareness measurement device capable of measuring squareness quickly and inexpensively.SOLUTION: With respect to a reference surface 1 on which a shaped steel S is mounted in such a way that a web surface of the shaped steel S is in parallel to the reference surface 1, two laser distance meters 10a, 10b are disposed in such a way that each of laser irradiation points P is disposed at preset height H from the reference surface 1 and difference surfaces of a same flange F of the shaped steel S are irradiated with respective laser beams at angles θ, θin a longitudinal-direction orthogonal surface of the shaped steel S. The two laser distance meters 10a, 10b are simultaneously moved to the longitudinal-direction orthogonal direction of the shaped steel S and in parallel to the reference surface 1, distance to the outer surface of the shaped steel S is acquired in a period in which two laser distance meters 10, 10b perform one-way scanning, and a position of the outer surface of the shaped steel S is calculated based on the acquired distance to the outer surface of the shaped steel S. Then, based on position data of the shaped steel outer surface, a flange corner part squareness RA of the shaped steel S is calculated.

Inventors:
MATSUMOTO MINORU
ICHIBA TADASUKE
HIRAYAMA KENTARO
Application Number:
JP2014077287A
Publication Date:
November 09, 2015
Filing Date:
April 03, 2014
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
G01B11/26
Domestic Patent References:
JPH11271032A1999-10-05
JP2011013160A2011-01-20
JPH0727518A1995-01-27
JPH11271032A1999-10-05
JP2011013160A2011-01-20
JPH06185988A1994-07-08
JPH0727518A1995-01-27
JPH06185988A1994-07-08
Attorney, Agent or Firm:
森 哲也
鈴木 壯兵衞
田中 秀▲てつ▼
廣瀬 一
宮坂 徹