Abnormality detection apparatus, abnormality detection method, and non-transitory computer readable recording medium

An abnormality detection apparatus for detecting an abnormality of a ball screw provided in an injection molding machine includes: a vibration sensor configured to detect vibration of the ball screw; and a computation unit configured to detect an abnormality of the ball screw based on information re...

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Bibliographische Detailangaben
Hauptverfasser:	Mitani, Soma, Kawakita, Masato, Hihara, Keita
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An abnormality detection apparatus for detecting an abnormality of a ball screw provided in an injection molding machine includes: a vibration sensor configured to detect vibration of the ball screw; and a computation unit configured to detect an abnormality of the ball screw based on information related to a distribution of frequency components obtained by frequency analysis of a vibration intensity detected by the vibration sensor, and information related to a distribution of frequency components obtained by frequency analysis of a vibration intensity detected when the ball screw, which is normal, operates.