Title:
METHOD AND DEVICE FOR CALCULATING COLUMNAR METALLIC MATERIAL END SHAPE
Document Type and Number:
Japanese Patent JP3921759
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for calculating the end shape of a columnar metallic material and a device thereof which are capable of automatically calculating the ideal end shape of the columnar metallic material which differs per production lot.
SOLUTION: On steel product laid in parallel to the z-axis of a rectangular coordinates system, an end shape calculation device calculates an ideal end shape which is free from burrs according to the following procedure. First, on the end and cylindrical surfaces of the steel product, the surface shape of a range where no burrs are deemed to be present, is measured (S110, S120). Next, an equation which is most reliable to represent the end face of the steel product is obtained by the method of least squares (S130). Then, the coordinate of the point of intersection where this equation and the equation of a straight line in parallel to the z-axis on the cylindrical surface of the steel product intersects, is calculated, and this coordinate is regarded as a coordinate which is located on the ridge of the ideal outer periphery of the end face (S140-S170).
More Like This:
Inventors:
Naoki Fuse
Kiyoaki Niimi
Minoru Moriyama
Kiyoaki Niimi
Minoru Moriyama
Application Number:
JP28859797A
Publication Date:
May 30, 2007
Filing Date:
October 21, 1997
Export Citation:
Assignee:
Daido Steel Co., Ltd.
International Classes:
B23Q17/22; G01B11/24; B23Q15/013; B23Q17/20; (IPC1-7): B23Q17/22; B23Q15/013; B23Q17/20; G01B11/24
Domestic Patent References:
| JP2124250A | ||||
| JP60183509A | ||||
| JP6155451A |
Attorney, Agent or Firm:
Tsutomu Adachi
Toshihiro Tanaka
Toshihiro Tanaka
Previous Patent: PRECISE GROOVE MACHINING DEVICE
Next Patent: SYSTEM FOR TRANSMITTING/RECEIVING EQUIPMENT DEVICE INFORMATION
Next Patent: SYSTEM FOR TRANSMITTING/RECEIVING EQUIPMENT DEVICE INFORMATION