Title:
RELOCATION RESTRICTING APPARATUS, MACHINE TOOL, RELOCATION RESTRICTING METHOD AND COMPUTER PROGRAM
Document Type and Number:
Japanese Patent JP2021026337
Kind Code:
A
Abstract:
To provide a relocation restricting apparatus, a machine tool, a relocation restricting method and a computer program allowing for determining an abnormality of a vibration sensor.SOLUTION: A relocation restricting apparatus comprises a first vibration sensor 25 that detects a vibration value that is a magnitude of vibration of an object-of-operation and a relocation determining section that determines whether or not the object-of-operation has been relocated based on a vibration value detected by the first vibration sensor 25, so that if it is determined by the relocation determining section that the object-of-operation has been relocated, the object-of-operation is prohibited from operating, and further comprises a second vibration sensor 14 that detects a vibration value of the object-of-operation and is different from the first vibration sensor 25, a deriving section that derives a similarity degree between the vibration value detected by the first vibration sensor 25 and the vibration value detected by the second vibration sensor 14, and an abnormality determining section that determines whether or not there is an abnormality in the first vibration sensor 25 or the second vibration sensor 14 based on the similarity degree.SELECTED DRAWING: Figure 2
Inventors:
CHIGA KEITA
Application Number:
JP2019141638A
Publication Date:
February 22, 2021
Filing Date:
July 31, 2019
Export Citation:
Assignee:
BROTHER IND LTD
International Classes:
G05B19/18; B23Q15/00; B23Q17/12; G08B15/00
Attorney, Agent or Firm:
Hideno Kono
Nobuo Kono
Nobuo Kono