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1. EP3756778 - CROWNING METHOD FOR PRESS BRAKE, AND PRESS BRAKE

Office
European Patent Office
Application Number 19757147
Application Date 14.02.2019
Publication Number 3756778
Publication Date 30.12.2020
Publication Kind A4
IPC
B21D 5/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
5Bending sheet metal along straight lines, e.g. to form simple curves
02on press brakes without making use of clamping means
CPC
B21D 5/0272
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
5Bending sheet metal along straight lines, e.g. to form simple curves
02on press brakes without making use of clamping means
0272Deflection compensating means
B21D 5/006
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
5Bending sheet metal along straight lines, e.g. to form simple curves
006combined with measuring of bends
B21D 5/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
5Bending sheet metal along straight lines, e.g. to form simple curves
02on press brakes without making use of clamping means
B30B 15/007
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
007Means for maintaining the press table, the press platen or the press ram against tilting or deflection
B30B 15/04
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
04Frames; Guides
Applicants AMADA CO LTD
Inventors SUZUKI TAISHI
MIURA KOUTAKU
AOKI MAKOTO
Designated States
Priority Data 2018029752 22.02.2018 JP
Title
(DE) BOMBIERUNGSVERFAHREN FÜR BIEGEPRESSE UND BIEGEPRESSE
(EN) CROWNING METHOD FOR PRESS BRAKE, AND PRESS BRAKE
(FR) PROCÉDÉ DE BOMBEMENT POUR PRESSE PLIEUSE, ET PRESSE PLIEUSE
Abstract
(EN) A crowning method applied to a press brake comprising an upper table and a lower table as being vertically opposed to each other and comprising first slits opened in right and left directions on both right and left sides of the upper table or the lower table, is by deforming end sides of upper portions or lower portions of the first slits of the upper table or the lower table upward or downward to carry out a crowning regulation.
(FR) L'invention concerne un procédé de bombement pour une presse plieuse qui comprend : une table supérieure et une table inférieure, qui se font face verticalement ; et des premières fentes formées à la fois sur les côtés gauche et droit de la table supérieure ou de la table inférieure et ouvertes dans la direction gauche-droite. Le procédé de bombement consiste à réaliser un ajustement de bombement par déformation vers le haut ou vers le bas de côtés d'extrémité des portions inférieures ou des portions supérieures des premières fentes dans la table supérieure ou la table inférieure.