PRESS BRAKE AND BENDING METHOD OF WORK

PROBLEM TO BE SOLVED: To remove or reduce warpage of a bent work without lowering productivity in bending of the work.SOLUTION: A press brake 1 for bending a planar work W by using a die D and a punch P has: a servo motor 19 for performing movement-positioning of an upper table relatively to a lower...

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Bibliographische Detailangaben
Hauptverfasser:	YAMATANI TAIJI, KOMATA HITOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PRESSES PRESSES IN GENERAL PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To remove or reduce warpage of a bent work without lowering productivity in bending of the work.SOLUTION: A press brake 1 for bending a planar work W by using a die D and a punch P has: a servo motor 19 for performing movement-positioning of an upper table relatively to a lower table; and a control part 15 for controlling the servo motor so that second travel speed V2 which is travel speed of the upper table from a position near a finishing position of a processing stroke to the finishing position of the processing stroke becomes slower than first travel speed V1 which is travel speed of the upper table from a starting position of the processing stroke to the position near the finishing position of the processing stroke.