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1. (WO2014201576) METHOD FOR WARPING THE MACHINE BED AND/OR THE PRESS RAM OF A PUNCHING PRESS AND PUNCHING PRESS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/201576 International Application No.: PCT/CH2013/000107
Publication Date: 24.12.2014 International Filing Date: 19.06.2013
Chapter 2 Demand Filed: 16.01.2015
IPC:
B30B 15/00 (2006.01) ,B21D 5/02 (2006.01) ,B30B 15/34 (2006.01) ,B30B 15/04 (2006.01) ,B23Q 11/14 (2006.01) ,B30B 15/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
30
PRESSES
B
PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15
Details of, or accessories for, presses; Auxiliary measures in connection with pressing
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
D
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING
5
Bending sheet metal along straight lines, e.g. to form simple curves
02
on press brakes without making use of clamping means
B PERFORMING OPERATIONS; TRANSPORTING
30
PRESSES
B
PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15
Details of, or accessories for, presses; Auxiliary measures in connection with pressing
34
Heating or cooling presses or parts thereof
B PERFORMING OPERATIONS; TRANSPORTING
30
PRESSES
B
PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15
Details of, or accessories for, presses; Auxiliary measures in connection with pressing
04
Frames; Guides
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
11
Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
14
Methods or arrangements for maintaining a constant temperature in parts of machine tools
B PERFORMING OPERATIONS; TRANSPORTING
30
PRESSES
B
PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15
Details of, or accessories for, presses; Auxiliary measures in connection with pressing
06
Platens or press rams
Applicants: BRUDERER AG[CH/CH]; Egnacherstrasse 44 CH-9320 Frasnacht, CH
Inventors: HAFNER, Josef, Thomas; CH
Agent: E. BLUM & CO. AG; Vorderberg 11 CH-8044 Zürich, CH
Priority Data:
Title (EN) METHOD FOR WARPING THE MACHINE BED AND/OR THE PRESS RAM OF A PUNCHING PRESS AND PUNCHING PRESS
(FR) PROCÉDÉ POUR COURBER LE SOCLE DE MACHINE ET/OU LE COULISSEAU DE PRESSE D'UNE PRESSE À DÉCOUPER ET PRESSE À DÉCOUPER
(DE) VERFAHREN ZUM VERWÖLBEN DES MASCHINENBETTS UND/ODER DES PRESSENSTÖSSELS EINER STANZPRESSE SOWIE STANZPRESSE
Abstract:
(EN) The invention relates to a method for warping the machine bed (5) and/or the press ram (2) of a punching press to compensate at least partially for the bending of the machine bed (5) or of the press ram (2) caused by the punching force during punching operation. According to the invention, for this purpose a temperature gradient is specifically produced within the machine bed (5) and/or within the press ram (2), with the effect of making the machine bed (5) warp in the direction of the press ram (2) and/or of making the press ram (2) warp in the direction of the machine bed (5). In this way it is possible with very little expenditure on plant or equipment to preform machine beds (5) and press rams (2) of punching presses to compensate for instances of bending caused by the punching force, without having to deviate from existing, tried-and-tested structural concepts. Moreover, the method according to the invention can also be used in the case of existing presses.
(FR) L'invention concerne un procédé pour courber le socle de machine (5) et/ou le coulisseau de presse (2) d'une presse à découper pour compenser au moins partiellement une flexion du socle de machine (5) ou du coulisseau de presse (2), due à la force de découpage, lors du découpage. A cet effet, un gradient de température est produit de façon ciblée dans le socle de machine (5) et/ou dans le coulisseau de presse (2), sous l'effet duquel le socle de machine (5) se courbe en direction du coulisseau de presse (2) et/ou le coulisseau de presse (2) se courbe en direction du socle de machine (5). Il est ainsi possible de pré-déformer des socles de machine (5) et des coulisseaux de presse (2) avec des moyens techniques réduits pour compenser des flexions dues à la force de découpage, sans devoir s'écarter de concepts structuraux existants ayant fait leurs preuves. Par ailleurs, le procédé selon l'invention peut également être employé avec des presses existantes.
(DE) Die Erfindung betrifft ein Verfahren zum Verwölben des Maschinenbetts (5) und/oder des Pressenstössels (2) einer Stanzpresse zur zumindest teilweisen Kompensation einer stanzkraftbedingten Durchbiegung des Maschinenbetts (5) bzw. des Pressenstössels (2) im Stanzbetrieb. Hierzu wird erfindungsgemäss innerhalb des Maschinenbetts (5) und/oder innerhalb des Pressenstössels (2) gezielt ein Temperaturgradient erzeugt, durch den sich das Maschinenbett (5) in Richtung auf den Pressenstössel (2) zu und/oder der Pressenstössel (2) in Richtung auf das Pressenbett (5) zu verwölbt. Auf diese Weise lassen sich Maschinenbetten (5) und Pressenstössel (2) von Stanzpressen mit einem sehr geringen anlagetechnischen Aufwand zur Kompensation von stanzkraftbedingten Durchbiegungen vorverformen, ohne dass von bestehenden und erprobten Strukturkonzepten abgewichen werden muss. Zudem kann das erfindungsgemässe Verfahren auch bei bestehenden Pressen angewendet werden.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)