PRESS-FORMING APPARATUS

Provided is a press-forming apparatus including: a punch; a die having an inclined surface inclined toward a hollow part into which the punch is inserted and; a die plate holding the die; a blank holder having a holding surface facing the inclined surface of the die; a die load sensor detecting a lo...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NOJIRI, NAOKI, SAITOH, MITSUO, HAMADA, HIDEAKI
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Provided is a press-forming apparatus including: a punch; a die having an inclined surface inclined toward a hollow part into which the punch is inserted and; a die plate holding the die; a blank holder having a holding surface facing the inclined surface of the die; a die load sensor detecting a load in a pressing direction, a load in a first direction perpendicular to the pressing direction, and a load in a second direction perpendicular to the first direction; a controller that calculates a normal force of the die based on the loads in the pressing direction, in the first direction, and in the second direction, the loads being detected by the die load sensor, and calculates the amount of correction of clearance between the die and the blank holder based on the normal force of the die; a first driver that moves the die in the pressing direction based on the amount of correction of clearance; and a second driver that drives the punch in the pressing direction.