EP1902792A3 - Method for operating a bending press, in particular a press brake - Google Patents

Method for operating a bending press, in particular a press brake Download PDF

Info

Publication number
EP1902792A3
EP1902792A3 EP07018438.7A EP07018438A EP1902792A3 EP 1902792 A3 EP1902792 A3 EP 1902792A3 EP 07018438 A EP07018438 A EP 07018438A EP 1902792 A3 EP1902792 A3 EP 1902792A3
Authority
EP
European Patent Office
Prior art keywords
press
operating
press bar
detection means
drive device
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.)
Granted
Application number
EP07018438.7A
Other languages
German (de)
French (fr)
Other versions
EP1902792A2 (en
EP1902792B1 (en
Inventor
Bernhard Fischereder
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.)
Trumpf Maschinen Austria GmbH and Co KG
Original Assignee
Trumpf Maschinen Austria GmbH and Co KG
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 Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP1902792A2 publication Critical patent/EP1902792A2/en
Publication of EP1902792A3 publication Critical patent/EP1902792A3/en
Application granted granted Critical
Publication of EP1902792B1 publication Critical patent/EP1902792B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B30B15/186—Controlling the return movement of the ram, e.g. decompression valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam

Landscapes

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

Abstract

Die Erfindung beschreibt Verfahren zum Betrieb einer Biegepresse, insbesondere Abkantpresse (1), mit einem im Wesentlichen aus Seitenständern (3, 4) und einem Tischbalken (5) bestehenden Maschinengestell (2) und mit einem relativ zum Tischbalken (5) verstellbar gelagerten, mittels einer Antriebsvorrichtung (11) verstellbaren Pressenbalken (8). Eine Steuer- und/oder Regeleinrichtung (34) ist mit einer Wegmessvorrichtung (42) zur Feststellung eines Verstellweges des Pressenbalkens (8) zwischen einer oberen und unteren Umkehrposition und mit zumindert einem Erfassungsmittel (32) für die Erfassung zumindest eines physikalischen Parameters zur Bestimmung der am Pressenbalken (8) von der Antriebsvorrichtung (11) bzw. dem Antricbsmittcl (9, 10) aufgebrachten Verstellkraft leitungsverbunden. Eine in der unteren Umkehrposition aus dem vom Erfassungsmittel (32) erfassten Parameter ermittelte Reaktionskraft (71) bildet einen Ist- Wert der nach einer im Datenspeicher (36) oder Rechner (35) hinterlegten Regelfunktion auf einen vorgegebenen Soll- Wert zur Beaufschlagung der Antriebsmittel (9, 10) für einen Eilrückhub reduziert wird.

Figure imgaf001
The invention relates to a method for operating a bending press, in particular a press brake (1), comprising a machine frame (2) consisting essentially of side posts (3, 4) and a table beam (5) and having a relative adjustably mounted to the table beam (5) a drive device (11) adjustable press bar (8). A control and / or regulating device (34) is provided with a path measuring device (42) for detecting a Verstellweges of the press bar (8) between an upper and lower reversing position and mitindert a detection means (32) for the detection of at least one physical parameter for determining the on the press bar (8) of the drive device (11) or the Antricbsmittcl (9, 10) applied adjusting line conductively connected. A reaction force (71) determined in the lower reversal position from the parameter detected by the detection means (32) forms an actual value of the control function stored in the data memory (36) or computer (35) to a predetermined desired value for acting upon the drive means ( 9, 10) is reduced for a Eilrückhub.
Figure imgaf001
EP07018438.7A 2006-09-25 2007-09-20 Method for operating a bending press, in particular a press brake Not-in-force EP1902792B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT15972006A AT503644B1 (en) 2006-09-25 2006-09-25 Method for operating bending presses uses sensors determining restoring force on press beam, uprights and drive system and reactive force of workpiece at beam reversing position and reducing to allow rapid return of ram to upper position

Publications (3)

Publication Number Publication Date
EP1902792A2 EP1902792A2 (en) 2008-03-26
EP1902792A3 true EP1902792A3 (en) 2013-10-30
EP1902792B1 EP1902792B1 (en) 2016-07-13

Family

ID=38777823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018438.7A Not-in-force EP1902792B1 (en) 2006-09-25 2007-09-20 Method for operating a bending press, in particular a press brake

Country Status (2)

Country Link
EP (1) EP1902792B1 (en)
AT (1) AT503644B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008058672A1 (en) 2007-12-18 2009-06-25 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Tab for a cradle link chain
AT518684B1 (en) 2016-06-01 2018-05-15 Stiwa Holding Gmbh Method for pressing a workpiece with a predetermined pressing force
CN112254907A (en) * 2020-11-18 2021-01-22 上海必通检测技术有限公司 Elasticity performance detection equipment with high detection precision
CN113319159A (en) * 2021-05-28 2021-08-31 沈阳市超光科技有限公司 Braking and rod withdrawing traction device for blank rod after bending and using method thereof
EP4140611A1 (en) 2021-08-23 2023-03-01 Bystronic Laser AG Bending machine, in particular bending press, with a length measuring system
CN113579014B (en) * 2021-09-07 2024-04-09 济南亿乾通风设备安装工程有限公司 Pneumatic bending machine with controllable angle and working method
CN114311789B (en) * 2021-12-16 2024-03-26 湖南领湃达志科技股份有限公司 Lithium battery Battery cell electrode processing device
AT526048A1 (en) * 2022-04-05 2023-10-15 Trumpf Maschinen Austria Gmbh & Co Kg Forming machine for forming workpieces and a method for this

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524582A (en) * 1983-03-31 1985-06-25 Cincinnati Incorporated Control system for hydraulic presses
US4819467A (en) * 1986-09-17 1989-04-11 Cincinnati Incorporated Adaptive control system for hydraulic press brake
US4907435A (en) * 1986-08-20 1990-03-13 Eckehart Schulze System for monitoring the position of a machine component
DE9218312U1 (en) * 1992-08-13 1994-06-23 Mannesmann Rexroth Gmbh, 97816 Lohr Hydraulic pressure control of a consumer
US5644915A (en) * 1996-04-25 1997-07-08 Cincinnati, Incorporated Control system for a hydraulic press brake
US5913956A (en) * 1995-06-07 1999-06-22 Capps; David F. Apparatus and method for progressive fracture of work pieces in mechanical presses

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734312A1 (en) * 1987-10-10 1989-04-27 Bosch Gmbh Robert SOUND-INSULATING COVER ELEMENT
JP3565679B2 (en) * 1997-03-26 2004-09-15 アイダエンジニアリング株式会社 Hydraulic press machine for sheet metal forming
US6874343B1 (en) * 1999-11-05 2005-04-05 Amada Company, Limited Press brake and method of controlling bidirectional fluid pump of hydraulic cylinder of press brake
AT501264B8 (en) * 2004-09-10 2007-02-15 Trumpf Maschinen Austria Gmbh METHOD FOR PRODUCING A WORKING PART THROUGH BENDING FORMING

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524582A (en) * 1983-03-31 1985-06-25 Cincinnati Incorporated Control system for hydraulic presses
US4907435A (en) * 1986-08-20 1990-03-13 Eckehart Schulze System for monitoring the position of a machine component
US4819467A (en) * 1986-09-17 1989-04-11 Cincinnati Incorporated Adaptive control system for hydraulic press brake
DE9218312U1 (en) * 1992-08-13 1994-06-23 Mannesmann Rexroth Gmbh, 97816 Lohr Hydraulic pressure control of a consumer
US5913956A (en) * 1995-06-07 1999-06-22 Capps; David F. Apparatus and method for progressive fracture of work pieces in mechanical presses
US5644915A (en) * 1996-04-25 1997-07-08 Cincinnati, Incorporated Control system for a hydraulic press brake

Also Published As

Publication number Publication date
EP1902792A2 (en) 2008-03-26
AT503644B1 (en) 2007-12-15
EP1902792B1 (en) 2016-07-13
AT503644A4 (en) 2007-12-15

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