EP2246131B1 - Presse à plier dotée de jumelles supplémentaires - Google Patents

Presse à plier dotée de jumelles supplémentaires Download PDF

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Publication number
EP2246131B1
EP2246131B1 EP20100004543 EP10004543A EP2246131B1 EP 2246131 B1 EP2246131 B1 EP 2246131B1 EP 20100004543 EP20100004543 EP 20100004543 EP 10004543 A EP10004543 A EP 10004543A EP 2246131 B1 EP2246131 B1 EP 2246131B1
Authority
EP
European Patent Office
Prior art keywords
bending press
bending
drive
press
flanges
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.)
Not-in-force
Application number
EP20100004543
Other languages
German (de)
English (en)
Other versions
EP2246131A1 (fr
Inventor
Egon Danninger
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 EP2246131A1 publication Critical patent/EP2246131A1/fr
Application granted granted Critical
Publication of EP2246131B1 publication Critical patent/EP2246131B1/fr
Not-in-force 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
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • 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
    • B30B15/041—Guides

Definitions

  • the invention relates to a bending press as described in the preamble of claim 1.
  • a bending press is known for example from JP-8174295-A ,
  • a machine tool in particular bending or stamping press is known, which has a reaction force transmission device in connection with the upper and lower tool and a horrlagerungs- and - tool guide device.
  • the devices are connected to each other and thus tool deviations, whereby reaction-force-induced machine deformations are compensated.
  • a hydraulic compensation device is known to counteract the springing of a c-shaped machine stand of a hydraulic press. This is achieved by means of a hydraulically actuated tie rod between cantilever legs of the machine stand, wherein the compensation force to be applied by the tie rod is regulated in dependence of the force applied by the drive means on the pressing tools force.
  • the disadvantage here is the impairment of accessibility to the work area of the pressing tools by the tie rod.
  • the object of the invention is to provide a bending press in which a spring-back of the machine frame is avoided and thus a precisely aligned alignment of the bending tools, regardless of the respectively applied forming force is achieved.
  • This object of the invention is achieved by the reproduced in the characterizing part of claim 1 features.
  • the surprising advantage of this is that in a forming process, the reaction force to be absorbed by the machine frame to be applied by the forming force, regardless of the provided for a precisely aligned alignment of the bending tools with guide arrangements for the adjustable press beam side cheeks, by the drive means having additional cheeks. This prevents springing of the side cheeks and thus a deviation from the aligned position of the bending tools and thus a high quality of the angular and dimensional stability of the deformation.
  • a bending press 1 is shown, in which a machine frame 3 is essentially formed of two side cheeks 3, 4 and a transverse dressing 5 connected thereto and spaced apart at a distance.
  • the side cheeks 3, 4 are formed by C-shaped sheet metal blanks.
  • a table bar 9 is attached at end faces 6 of a footprint 7 facing leg 8 of the C-shaped side cheeks 3.
  • the attachment by connecting means 10, for example, bolts, but also a welding is quite possible.
  • the table bar 9 is mounted relative to the table bar 9 adjustable press bar 12 in linear guide assemblies 13 adjustable.
  • tool holders 16 for the assembly of the bending press 1 with bending tools 17, 18 are arranged, which are aligned with respect to a vertically extending to the footprint working plane 19 exactly aligned.
  • a hydraulic drive arrangement 20 double-acting hydraulic cylinders 22 are provided for actuating the adjustable press beam 12 as drive means 21, wherein piston rods 23 are drive-connected to the press beam 12.
  • two such hydraulic cylinders 22 are provided as drive means 21 per drive side of the press bar 12 according to the embodiment shown. These are independent of the side cheeks 3, 4 with housings 24 on opposite side surfaces 25 of legs 26, of parallel to the side walls 3, 4 and provided at these slightly spaced additional cheeks 27, 28, attached.
  • Additional cheeks 27, 28 are formed by massive sheet metal blanks in C-shape, wherein a footrest 29 facing the footprint 7 forms a support bracket 30 on which the table beam is supported with an underside support surface 31 via an abutment 32.
  • the additional cheeks 27, 28 with the abutments 32 for the table bar 9 and the drive means 21 for adjusting the press bar 12 ensures that the guide assemblies 13 for the press bar 12 having side cheeks 3, 4 are not burdened by the applied forming forces and so that no, the aligned position of the bending tools influencing springing occurs by which the quality of the deformation of the workpiece would be impaired.
  • abutment 32 for supporting the additional cheeks 27, 28 on the table bar 9 as well as drive bearing 33 for the drive connection of the piston rods 23 with the press bar 12 as so-called spherical bearing assemblies 34, for example Kugelkalottenlager, rubber blocks, etc. form, creating a Power transmission of a, caused by a suspension canting the power flow, is unaffected.
  • the additional cheeks 27, 28 are positioned for positioning relative to the side cheeks 3, 4 or the machine frame 2 via positioning means 35 at a short distance 36. It is advantageous to form these positioning means 35 as a spacer bolt and to arrange in a bending-neutral zone of the additional cheeks 27, 28, thereby avoiding deformation effects on the side cheeks 3, 4. It can also be provided that the spacers 35 are mounted on elastic bearings either in the side walls 3, 4 or the additional cheeks 27, 28 for a deformation compensation.
  • Fig. 3 is a further and possibly independent embodiment of the bending press 1 is shown, again for like parts, the same reference numerals or component names as in the preceding Fig. 1 . 2 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 . 2 referred or referred.
  • the bending press 1 for adjusting the adjustable press bar 12 in contrast to the embodiments previously shown, a central drive means 21 of the drive assembly 20.
  • the press beam 12 is guided along the guide arrangements 13 of the laterally arranged side cheeks 3, 4, wherein the side cheeks 3, 4 mounted on a bottom plate 37 upstanding, in particular welded thereto.
  • the drive means 21, in the illustrated embodiment, an electric spindle drive 38 is supported on the two additional cheeks 27, 28, via a flange 39, wherein the additional cheeks 27, 28 spaced from the bottom plate 37 are.
  • the table bar 9 is attached to the connecting means 10 on the end faces 6 of the legs 11 of the side cheeks 3, 4. At a rear side of the table beam 9, the additional cheeks 27, 28 are also attached fittingly via the connecting means 10.
  • the drive bearing 33 for transmitting the driving force between a drive spindle 40 and the press bar 12 is, as also described above, formed by a spherical bearing assembly 34.
  • the spindle drive 38 preferably has as a drive motor electric a so-called torque motor for driving a rotatably mounted spindle nut, whereby the drive spindle 40 is not set in rotational movement, but only a reciprocating movement according to - double arrow 41 - for the stroke adjustment of Pressenbalkens12 executes.

Claims (15)

  1. Presse à plier (1), en particulier presse plieuse, qui convient pour la déformation par flexion pour la fabrication de pièces en forme de tôle, entre des outils de pliage (17, 18) ajustables l'un relativement à l'autre, avec un bâti de machine (2) avec des joues latérales en forme de c (3, 4) et avec une poutre de table fixe (9) et un sommier de pression (12) ajustable par des moyens d'entraînement (21) d'un dispositif d'entraînement (20) dans des agencements de guidage linéaires (13) des joues latérales (3, 4), caractérisée en ce qu'en plus des joues latérales (3, 4), et orientées approximativement parallèlement à celles-ci, des joues additionnelles (27, 28) sont disposées auxquelles sont fixés les moyens d'entraînement (21) pour le déplacement du sommier de pression (12).
  2. Presse à plier (1) selon la revendication 1, caractérisée en ce que les joues additionnelles (27, 28) forment une liaison par force entre la poutre de table (9) et les moyens d'entraînement (21).
  3. Presse à plier (1) selon la revendication 1, caractérisée en ce que les joues additionnelles (27, 28) réalisent une liaison par force entre une plaque de fond (37) et les moyens d'entraînement (21).
  4. Presse à plier (1) selon la revendication 1, caractérisée en ce que les joues additionnelles (27, 28) s'appuient par des butées sphériques (32) à la poutre de table (9).
  5. Presse à plier (1) selon la revendication 1, caractérisée en ce que des moyens de positionnement des moyens d'entraînement (21) sont reliés, quant à leur entraînement, par des paliers d'entraînement sphériques (33) au sommier de pression (12).
  6. Presse à plier (1) selon l'une des revendications précédentes, caractérisée en ce que les joues additionnelles (27, 28) sont fixées aux joues latérales (3, 4) par des moyens de positionnement (35).
  7. Presse à plier (1) selon la revendication 6, caractérisée en ce que les moyens de positionnement (35) sont disposés dans une zone neutre en flexion des joues additionnelles (27,28).
  8. Presse à plier (1) selon la revendication 6 ou 7, caractérisée en ce que les moyens de positionnement (35) sont formés par des boulons d'écartement.
  9. Presse à plier (1) selon la revendication 8, caractérisée en ce que les boulons d'écartement sont logés élastiquement aux joues latérales (3, 4).
  10. Presse à plier (1) selon la revendication 8, caractérisée en ce que les boulons d'écartement sont logés élastiquement aux joues additionnelles (27, 28).
  11. Presse à plier (1) selon la revendication 4, caractérisée en ce que les butées sont formées par des roulements à billes-calottes.
  12. Presse à plier (1) selon la revendication 5, caractérisée en ce que les paliers d'entraînement (33) sont formés par des roulements à billes-calottes.
  13. Presse à plier (1) selon la revendication 4, caractérisée en ce que les butées (32) sont formées par des blocs en caoutchouc.
  14. Presse à plier (1) selon la revendication 5, caractérisée en ce que les paliers d'entraînement (33) sont formés par des blocs en caoutchouc.
  15. Presse à plier (1) selon la revendication 1, caractérisée en ce que les moyens d'entraînement sont formés par des vérins hydrauliques (22).
EP20100004543 2009-04-29 2010-04-29 Presse à plier dotée de jumelles supplémentaires Not-in-force EP2246131B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT6502009A AT508164B1 (de) 2009-04-29 2009-04-29 Biegepresse mit zusatzwangen

Publications (2)

Publication Number Publication Date
EP2246131A1 EP2246131A1 (fr) 2010-11-03
EP2246131B1 true EP2246131B1 (fr) 2012-08-29

Family

ID=42558193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100004543 Not-in-force EP2246131B1 (fr) 2009-04-29 2010-04-29 Presse à plier dotée de jumelles supplémentaires

Country Status (2)

Country Link
EP (1) EP2246131B1 (fr)
AT (1) AT508164B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104579B (zh) * 2011-11-15 2015-04-01 珠海格力电器股份有限公司 面板装饰条压紧装置及压紧方法
AT513150B1 (de) * 2012-12-06 2014-02-15 Trumpf Maschinen Austria Gmbh Abkantpresse
AT516493B1 (de) * 2015-02-25 2016-06-15 Trumpf Maschinen Austria Gmbh & Co Kg Abkantpresse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809361A (en) * 1954-01-15 1959-02-25 Fielding & Platt Ltd Improvements in or relating to hydraulic presses
GB1085755A (en) * 1962-06-02 1967-10-04 Hydraulik Gmbh Hydraulic drop-forging press
GB1181941A (en) 1968-02-08 1970-02-18 Norton Tool Company Ltd Presses
CH579457A5 (fr) * 1974-07-09 1976-09-15 Harcuba Siegfried
GB2222970B (en) 1988-08-03 1993-04-14 Amada Co Ltd Machine tool
DE4335174A1 (de) * 1993-10-15 1995-04-20 Haemmerle Ag Verfahren zum Biegen von Blechen und Abkantpresse zur Durchführung des Verfahrens
JPH08174295A (ja) * 1994-12-27 1996-07-09 Komatsu Ltd プレス機械
DE20114565U1 (de) * 2001-09-04 2001-11-15 Hagedorn Klaus Werkstattpresse mit Säulenführungsgestell und Werkzeugaufnahme

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Publication number Publication date
AT508164A1 (de) 2010-11-15
AT508164B1 (de) 2011-01-15
EP2246131A1 (fr) 2010-11-03

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