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EP2210681A2 - Presse à plier dotée d'une barre de pressage en plusieurs parties - Google Patents

Presse à plier dotée d'une barre de pressage en plusieurs parties Download PDF

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Publication number
EP2210681A2
EP2210681A2 EP10000752A EP10000752A EP2210681A2 EP 2210681 A2 EP2210681 A2 EP 2210681A2 EP 10000752 A EP10000752 A EP 10000752A EP 10000752 A EP10000752 A EP 10000752A EP 2210681 A2 EP2210681 A2 EP 2210681A2
Authority
EP
European Patent Office
Prior art keywords
press
bending
bar
bending press
adjusting means
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
EP10000752A
Other languages
German (de)
English (en)
Other versions
EP2210681A3 (fr
EP2210681B1 (fr
Inventor
Josef Gaggl
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 EP2210681A2 publication Critical patent/EP2210681A2/fr
Publication of EP2210681A3 publication Critical patent/EP2210681A3/fr
Application granted granted Critical
Publication of EP2210681B1 publication Critical patent/EP2210681B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides

Definitions

  • the invention relates to a bending press as described in the preamble of claim 1.
  • the two cheek parts of the upper cheek are preferably connected to each other by coupling members at their outer end regions, said coupling members connected via hinge axes with the cheek parts and spring elements, whereby in the unloaded state of the bending tool receiving cheek part assumes a stable, neutral position.
  • the object of the invention is to provide a bending press with a transverse to the bending force press bar with which a reduction of the cycle time is achieved for a forming process. higher adjustment speeds can be achieved and thus a reduction of the required total cycle time is achieved.
  • the surprising advantage is that to be moved in a forming cycle mass of the bending beam in a bending forces receiving, a relatively small stroke to be undertaken main mass and the Hauptverstellweg be made, the bending tool having secondary mass is divided and thus greater Verstell aus for the express ways of the press beam while maintaining the safety requirements are achieved and also by the further drive arrangement for the adjustment of the secondary mass relative to the main mass, with a larger number of actuating means, an a deflection of the fixed table beam conformable support surface of the adjustable tool bar is achieved.
  • An advantage of this is also an embodiment according to claim 13, whereby a clamping device with secure clamping effect is achieved even at higher restoring forces and, above all, an effective prevention of safety endangering caster in the event of an emergency stop.
  • an embodiment according to claim 22 is advantageous because a deformation-stable for receiving the forming forces frame profile for the machine frame is achieved.
  • a bending press 1 is shown.
  • bottom plates 2, for bearing the bending press 1 on a footprint 3 are in alignment with a bending plane 4 at a distance corresponding to a predetermined length 6 of a fixed table beam 7 in the direction perpendicular to a top 8 of the bottom plate 2 opposite each other a side stand. 9 , 10 attached.
  • the side posts 9, 10 are formed of solid plate blanks in C-shape with base legs 11 facing each other, with vertically projecting end faces 12 in the distance 5 and corresponding to the length 6 of the table beam 7.
  • the side stand 9, 10 and the table bar 7 are connected to each other connected, for example screwed or welded.
  • a width 13 of the base legs is greater than a width 14 of vertically rising webs 15 of the side stand 9, 10 to which in the vertical direction then head legs 16 of the side stand 9, 10 are formed, which have approximately the width 13 of the base legs 11 and Assign each other with end faces 17. Due to the C-shaped design of the side stand 9, 10 with a smaller width 14 having webs 15 a free space on both sides of the table beam 7 is created as a manipulation space for the operation of the bending press 1 for a tool or workpiece change.
  • the mutually facing head legs 16 of the side stand 9, 10 are provided with the upper side 8 in vertical alignment extending guideways 18 a guide assembly 19 in which a press bar 20 - according to double arrow 21 - is adjustably mounted, with drive means 22 of a drive assembly 23, which also attached to the head legs 16, drivingly connected.
  • the drive means 22 are formed by double-acting tandem pressure cylinder, which with a pressure medium from an oil hydraulic supply device not shown and associated control and regulating device for a reversible movement - according to double arrow 21 - acted upon.
  • the adjustable over the drive assembly 23 relative to the table bar 7 press bar 20 stores telescopically adjustable a tool bar 25 which is reversibly adjustable by a further drive assembly 26 in the adjustment of the press bar 20 relative to this.
  • the tool bar 25 is guided along a linear guide arrangement 31, which is preferably integrated in the press bar 20.
  • the drive arrangement 26 for the tool bar 25 is formed by a plurality of likewise arranged in the press bar 20 arranged adjusting means 32 which is formed by one side acted upon by a pressure medium, in bores 33 of the press bar 20 adjustable pressure piston 34 is formed.
  • the arrangement or alignment of the adjusting means 32 in the press bar 20 allows adjustment of the tool bar 25 relative to the press bar 20 in alternate adjustment, according to - double arrow 35th
  • This design of the drive assemblies 23, 26 allows on the one hand a common adjustment of the press bar 20 with the tool bar 25 and the adjustment of the tool bar 25 relative to the press bar 20 in reversible directions.
  • the adjusting means 32 have controllable clamping devices 36 for the pressure pistons 34, as a result of which the relative position of the tool bar 25 to the press beam 20 can be fixed as required.
  • the tool bar 25 which is preferably carried out in lightweight construction, by different adjustment and positional fixation of the pressure piston 34 by means of the clamping means 36, to compensate for a expected by the forming process of a workpiece deflection, in opposite Bending direction and thus avoid forming errors on the workpiece.
  • the lightweight construction of the tool bar 25 is achieved by weight-reducing measures, for example by the shown lattice-like design of the tool bar 25, whereby the mass to be moved is minimized. This allows an increase in the adjustment speed and thus a reduction of the cycle time for a forming process.
  • the lightweight design allows reduced drive power, ie smaller Drive components and the undertaking of the above-described crowning measures.
  • a working cycle of the bending press 1 according to the invention with the multi-part press beam 20 comprises the movement starting from an upper end position - level 40 - with retracted drive means 22 of the drive assembly 23 for the application up to a, according to the design of the bending press 1, maximum provided forming force.
  • the cycle sequence now provides an express delivery for the approach of the bending tools 30, 31 to a predetermined safety distance 45 between the bending tools 30, 31, taking into account a thickness 46, a workpiece 47 placed on a bending tool 31 for a forming operation , in front.
  • the safety distance 45 is provided according to the safety guidelines to prevent injuries, up to reaching the safety distance 45, a higher adjustment compared to an adjustment for the approximation of the bending tool 30 to the workpiece 47 and for the actual forming process is allowed.
  • This Eilzurus takes place at existing upper end position - according to level 40 - by a relative displacement of the tool bar 25 according to arrow 48, that is without adjustment of the drive means 22 of the drive assembly 23.
  • the multi-part design of the press bar 20 in conjunction with the pressure adjusting means 44 with integrated clamping device 36 for the pressure piston 34 allows a bending compensation of the bending process during bending press bar 20 characterized in that the pressure actuating means 44 according to a specification of the adjustment paths, for example, depending on Workpiece and / or machine parameters differentiated for the individual pressure actuating means 44 are determined, adjusted and fixed by means of the clamping device 36, and thus the deflection of the press bar 20 is compensated. Also, thereby occurring bending of the table beam 7, as it is shown in exaggerated form, be balanced and thus a high Umforrn2011 be achieved within narrow tolerances.
  • actuating means 32 with the clamping device 36 is shown.
  • a blind bore 52 of the press bar 20 for a relative adjustment - according to double arrow 35 - of the tool bar 25 of the formed by a round rod 53 pressure piston 34 adjustable according to - double arrow 54 - arranged.
  • the blind bore 52 forms a pressure chamber 55 which is connected via a line 56 with a supply device not shown in - double arrow 57 -, via which a pressure supply of the pressure chamber 55 with the pressure medium or for the discharge of the pressure medium takes place.
  • the pressure piston 34 is arranged pressure-tight in the blind bore 52 via a sealing device not shown opposite the pressure chamber 55 and further penetrates a receiving area 58 for the clamping device 36 with respect to a diameter of the blind bore 52 enlarged diameter, whereby a via a line 59, if necessary, with a Pressure medium - according to double arrow 60 - to be supplied, annular gap space 61 is reached in the pressure-tight, an elastic tubular pressure cuff 62 is arranged.
  • This comprises a pressure piston 34 surrounding, resilient, slotted clamping sleeve 63 which is pressed at a pressurization of the gap 61 as a locking means 64 by the pressure cuff 62 to an outer surface 65 of the plunger 34 and thus the relative displacement of the tool bar 25 against the press beam 20th is prevented as needed.
  • FIG. 7 a possible embodiment of a machine frame 66 of the bending press 1 according to the invention is shown.
  • the drive means 22 of the drive assembly for the press bar not shown are in the embodiment shown directly attached.
  • the drive arrangement for the press beam can be designed for hydraulic operation of the press brake 1 by means of a hydraulic single cylinder, tandem cylinder which can be loaded with a pressure medium, but of course also electric drive arrangements, e.g. Spindle drives or eccentric drives are possible.
  • the facing head legs 16 may be connected via connecting profiles 67 forming a crosshead 68.
  • the figure in the legs 15 arranged and these transverse apertures 69 can be seen, which equips the bending press 1 with the bending tools or with tool sets in alignment with the bending plane 4, according to - double whistle 70 -, 1 for example from a close range allow the machine frame 66 arranged tool storage, preferably with an automated tool changing device.
  • the press beam 20 and the tool bar 25 are operated according to this embodiment in the reverse direction of action via the drive assemblies 23, 26, i. a forming process takes place on a workpiece 47 positioned between the bending tools 29, 30 by lifting the press bar 20 relative to the machine frame 66, and the force of gravity comes into effect during the rapid return stroke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP10000752.5A 2009-01-27 2010-01-26 Presse à plier dotée d'une barre de pressage en plusieurs parties Active EP2210681B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1372009A AT507809B1 (de) 2009-01-27 2009-01-27 Biegepresse mit einem mehrteiligen pressenbalken

Publications (3)

Publication Number Publication Date
EP2210681A2 true EP2210681A2 (fr) 2010-07-28
EP2210681A3 EP2210681A3 (fr) 2013-05-22
EP2210681B1 EP2210681B1 (fr) 2016-08-17

Family

ID=42041611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10000752.5A Active EP2210681B1 (fr) 2009-01-27 2010-01-26 Presse à plier dotée d'une barre de pressage en plusieurs parties

Country Status (2)

Country Link
EP (1) EP2210681B1 (fr)
AT (1) AT507809B1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010008255A1 (de) * 2010-02-17 2011-08-18 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Mich. Presse und Betriebsverfahren dafür
AT513150A4 (de) * 2012-12-06 2014-02-15 Trumpf Maschinen Austria Gmbh Abkantpresse
EP2722163A1 (fr) * 2012-10-18 2014-04-23 Nivora IP B.V. Unité d'entraînement pourvue de moyens d'entraînement intégrés
DE102013213577A1 (de) * 2013-07-11 2015-01-15 Thyssenkrupp System Engineering Gmbh Vorrichtung zum Bearbeiten eines Werkstücks und Verfahren zum Betreiben einer Vorrichtung
WO2015081360A1 (fr) * 2013-12-04 2015-06-11 Trumpf Maschinen Austria Gmbh & Co. Kg. Presse à cintrer
WO2015081359A1 (fr) * 2013-12-04 2015-06-11 Trumpf Maschinen Austria Gmbh & Co. Kg. Machine à cintrer
DE102015202003A1 (de) * 2015-02-05 2016-08-11 Schnupp Gmbh & Co Hydraulik Kg Bearbeitungspresse
CN108145823A (zh) * 2018-01-08 2018-06-12 宁德市安升环保科技有限公司 一种环保的废弃植物纤维生产复合板材装置
CN108749068A (zh) * 2018-08-27 2018-11-06 马林浩 一种适用于多种长度的铝单板钣金开角开孔多功能一体机
CN115608830A (zh) * 2021-07-15 2023-01-17 石家庄理想汽车零部件有限公司 轴套内壁盲孔加工工具、加工装置及加工方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543772A1 (fr) 1991-11-21 1993-05-26 M + S Brugg Ag Presse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1777088A1 (de) * 1968-09-04 1971-04-01 Schlieper Guenter Hydraulik-Konstruktion mit selbstregelnden Kompensationskolben
FR2119528A5 (fr) * 1970-12-25 1972-08-04 Amada Co Ltd
DE3245755A1 (de) * 1982-12-10 1984-06-14 Dorstener Maschinenfabrik Ag, 4270 Dorsten Verfahren zum korrigieren der biegelinie des biegewerkzeuges einer biegepresse, insbesondere abkantpresse
AT392023B (de) * 1988-11-21 1991-01-10 Haemmerle Ag Verfahren zum biegen von blechstuecken
IT1250562B (it) * 1991-12-30 1995-04-20 Prima Ind Spa Pressa piegatrice di precisione per pezzi di lamiera relativamente corti.
AT501264B8 (de) * 2004-09-10 2007-02-15 Trumpf Maschinen Austria Gmbh Verfahren zur herstellung eines werkteils durch biegeumformung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543772A1 (fr) 1991-11-21 1993-05-26 M + S Brugg Ag Presse

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010008255A1 (de) * 2010-02-17 2011-08-18 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Mich. Presse und Betriebsverfahren dafür
EP2722163A1 (fr) * 2012-10-18 2014-04-23 Nivora IP B.V. Unité d'entraînement pourvue de moyens d'entraînement intégrés
AT513150A4 (de) * 2012-12-06 2014-02-15 Trumpf Maschinen Austria Gmbh Abkantpresse
AT513150B1 (de) * 2012-12-06 2014-02-15 Trumpf Maschinen Austria Gmbh Abkantpresse
DE102013213577A1 (de) * 2013-07-11 2015-01-15 Thyssenkrupp System Engineering Gmbh Vorrichtung zum Bearbeiten eines Werkstücks und Verfahren zum Betreiben einer Vorrichtung
AT515153A1 (de) * 2013-12-04 2015-06-15 Trumpf Maschinen Austria Gmbh Biegemaschine
WO2015081359A1 (fr) * 2013-12-04 2015-06-11 Trumpf Maschinen Austria Gmbh & Co. Kg. Machine à cintrer
AT515130A1 (de) * 2013-12-04 2015-06-15 Trumpf Maschinen Austria Gmbh Biegepresse
WO2015081360A1 (fr) * 2013-12-04 2015-06-11 Trumpf Maschinen Austria Gmbh & Co. Kg. Presse à cintrer
AT515153B1 (de) * 2013-12-04 2015-08-15 Trumpf Maschinen Austria Gmbh Biegemaschine
AT515130B1 (de) * 2013-12-04 2015-08-15 Trumpf Maschinen Austria Gmbh Biegepresse
DE102015202003A1 (de) * 2015-02-05 2016-08-11 Schnupp Gmbh & Co Hydraulik Kg Bearbeitungspresse
DE102015202003B4 (de) * 2015-02-05 2017-07-27 Schnupp Gmbh & Co Hydraulik Kg Bearbeitungspresse
CN108145823A (zh) * 2018-01-08 2018-06-12 宁德市安升环保科技有限公司 一种环保的废弃植物纤维生产复合板材装置
CN108749068A (zh) * 2018-08-27 2018-11-06 马林浩 一种适用于多种长度的铝单板钣金开角开孔多功能一体机
CN115608830A (zh) * 2021-07-15 2023-01-17 石家庄理想汽车零部件有限公司 轴套内壁盲孔加工工具、加工装置及加工方法

Also Published As

Publication number Publication date
EP2210681A3 (fr) 2013-05-22
EP2210681B1 (fr) 2016-08-17
AT507809B1 (de) 2010-11-15
AT507809A1 (de) 2010-08-15

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