EP2017020A3 - Method and bending machine for compensating the deflection of components of this bending machine - Google Patents

Method and bending machine for compensating the deflection of components of this bending machine Download PDF

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Publication number
EP2017020A3
EP2017020A3 EP08008324A EP08008324A EP2017020A3 EP 2017020 A3 EP2017020 A3 EP 2017020A3 EP 08008324 A EP08008324 A EP 08008324A EP 08008324 A EP08008324 A EP 08008324A EP 2017020 A3 EP2017020 A3 EP 2017020A3
Authority
EP
European Patent Office
Prior art keywords
bending machine
displacement
wedge
deflection
crowning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08008324A
Other languages
German (de)
French (fr)
Other versions
EP2017020A2 (en
Inventor
Thomas Fehrenbach
Frank Schwab
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EHT Werkzeugmaschinen GmbH
Original Assignee
EHT Werkzeugmaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EHT Werkzeugmaschinen GmbH filed Critical EHT Werkzeugmaschinen GmbH
Publication of EP2017020A2 publication Critical patent/EP2017020A2/en
Publication of EP2017020A3 publication Critical patent/EP2017020A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0272—Deflection compensating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

Zur Kompensation der Durchbiegung von Teilen, beispielsweise der Matrize oder dem Unterwerkzeug (3), einer Biegemaschine (1), insbesondere zum Bombieren werden relativ zueinander verschiebbare Keile je nach Ausmaß der angestrebten Kompensation oder Bombierung mehr oder weniger stark relativ zueinander verschoben, wobei der obere Keil eine in Verschieberichtung größere Abmessung hat und in der Regel in dieser Richtung nicht verstellt, sondern nur angehoben wird, während der untere, in Verschieberichtung kürzere Keil durch seine Verstellung die gewünschte Kompensation bewirkt. Dabei wird vor der Verschiebung eine Kraft ausgeübt, durch die insbesondere der obere Keil (5) entlastet oder angehoben wird, so dass die danach erfolgende Verschiebung des unteren Keils (6) leichtgängig und mit geringer Antriebskraft erfolgen kann (Fig. 2).

Figure imgaf001
To compensate for the deflection of parts, such as the die or the lower tool (3), a bending machine (1), in particular for crowning relatively movable wedges are more or less displaced relative to each other depending on the extent of the desired compensation or crowning, the upper Wedge has a larger dimension in the direction of displacement and is usually not adjusted in this direction, but only raised, while the lower, shorter in the direction of displacement wedge causes the desired compensation by its adjustment. In this case, a force is exerted before the displacement, by which in particular the upper wedge (5) is relieved or lifted, so that the subsequent successful displacement of the lower wedge (6) can be smooth and with low driving force (Fig. 2).
Figure imgaf001
EP08008324A 2007-07-17 2008-05-02 Method and bending machine for compensating the deflection of components of this bending machine Withdrawn EP2017020A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710033199 DE102007033199B3 (en) 2007-07-17 2007-07-17 Bending machine e.g. press brake, parts deflection compensating method for embossing e.g. pusher, involves exerting force before displacement, balancing or raising wedge, and accomplishing relative displacement

Publications (2)

Publication Number Publication Date
EP2017020A2 EP2017020A2 (en) 2009-01-21
EP2017020A3 true EP2017020A3 (en) 2010-03-31

Family

ID=39466069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08008324A Withdrawn EP2017020A3 (en) 2007-07-17 2008-05-02 Method and bending machine for compensating the deflection of components of this bending machine

Country Status (2)

Country Link
EP (1) EP2017020A3 (en)
DE (1) DE102007033199B3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2942981B1 (en) * 2009-03-13 2011-04-08 Amada Europe PRESS BRAKE FOR FOLDING SHEETS
FR2942982B1 (en) * 2009-03-13 2014-12-05 Amada Europ PRESS BRAKE FOR FOLDING SHEETS
CN101773960B (en) * 2010-02-14 2011-06-08 安徽联盟模具工业股份有限公司 Four-matched-inclined-wedge type flexibility compensating device of bending machine
TR201203770A2 (en) * 2012-04-03 2012-12-21 Durmazlar Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Lubricated bombing mechanism.
EP2722163B1 (en) * 2012-10-18 2016-01-20 Nivora IP B.V. Driving unit with integrated driving means
CN103264098A (en) * 2013-05-23 2013-08-28 江苏亚威机床股份有限公司 Manual setting wedge compensation type workbench of numerical control plate bending machine
CN103521574B (en) * 2013-10-11 2016-06-22 安徽联盟模具工业股份有限公司 Bender two panels double inclined plane formula bidirectional deflection compensation device
CN108067526B (en) * 2015-05-29 2020-02-04 马鞍山市辰兴机械制造有限公司 Local adjusting method for deflection compensation workbench of bending machine
CN105057412A (en) * 2015-08-24 2015-11-18 江苏中海重型机床有限公司 Equal-height adjusting device for bending machine and bending machine
CN109866450A (en) * 2019-04-12 2019-06-11 扬州汉智数控机械有限公司 A kind of electricity servo bending center wedge drive mechanism
CN112045076B (en) * 2020-08-20 2023-07-25 合肥工业大学 Electrohydraulic mixing stamping process distributed blank holder force generating device and control method
WO2022146266A1 (en) * 2020-12-31 2022-07-07 Baykal Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Gas propellant top beam structure in press brakes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404269A1 (en) * 1989-06-21 1990-12-27 Machinefabriek Wila B.V. A press and an automatic curve-forming device therefor
DE19681349T1 (en) * 1995-04-27 1998-04-02 Komatsu Mfg Co Ltd Bending machine
EP0983807A2 (en) * 1998-08-31 2000-03-08 Toyokoki Co., Ltd. A press brake

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752346C3 (en) * 1968-05-11 1974-09-12 Scharringhausen Maschinenbau Gmbh, 7526 Rheinsheim Crowning device for a press brake

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404269A1 (en) * 1989-06-21 1990-12-27 Machinefabriek Wila B.V. A press and an automatic curve-forming device therefor
DE19681349T1 (en) * 1995-04-27 1998-04-02 Komatsu Mfg Co Ltd Bending machine
EP0983807A2 (en) * 1998-08-31 2000-03-08 Toyokoki Co., Ltd. A press brake

Also Published As

Publication number Publication date
DE102007033199B3 (en) 2008-07-03
EP2017020A2 (en) 2009-01-21

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