EP2686120B1 - Dispositif de positionnement d'outil sur une presse à cintrer - Google Patents

Dispositif de positionnement d'outil sur une presse à cintrer Download PDF

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Publication number
EP2686120B1
EP2686120B1 EP12720066.5A EP12720066A EP2686120B1 EP 2686120 B1 EP2686120 B1 EP 2686120B1 EP 12720066 A EP12720066 A EP 12720066A EP 2686120 B1 EP2686120 B1 EP 2686120B1
Authority
EP
European Patent Office
Prior art keywords
tool
bending press
positioning
bar
press
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.)
Active
Application number
EP12720066.5A
Other languages
German (de)
English (en)
Other versions
EP2686120A1 (fr
Inventor
Egon Danninger
Thomas Denkmeier
Kabir SECIBOVIC
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
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Application filed by Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP2686120A1 publication Critical patent/EP2686120A1/fr
Application granted granted Critical
Publication of EP2686120B1 publication Critical patent/EP2686120B1/fr
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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
    • B21D5/0209—Tools therefor
    • B21D5/0218—Length adjustment of the punch
    • 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
    • B21D5/0209—Tools therefor
    • B21D5/0227—Length adjustment of the die
    • 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
    • B21D5/0209—Tools therefor
    • B21D5/0236—Tool clamping

Definitions

  • the invention relates to a bending press with a tool positioning device for bending tools, as described in the preamble of claim 1.
  • document JP 6 262263 A discloses a bending press with a tool positioning device according to the preamble of claim 1.
  • a bending press in the production of bent-formed workpieces is often provided to equip the press bars with several cooperating tool sets for different forming operations. With a required conversion of the bending press as a result of an adjustment of the tooling when changing workpiece-related requirements, but thus increases the setup effort.
  • the object of the invention is to provide a tool positioning device to simplify conversion operations in the change of the production program to avoid unproductive non-productive times.
  • a bending press 1 in a simplified representation with two relatively adjustable tool bar 2 shown.
  • a press frame 3 in particular on side posts 4 a fixed table bar 5 is attached.
  • the table bar 5 and the press bar 9 each with two sets of tools 10, 11, as described in more detail below, fitted to opposite support surfaces 12, 13.
  • Each of the tool sets 10, 11 is preferably formed by a clamping means 14 and equipped with one or more bending tools 15 horradapter 16, wherein to achieve a high flexibility in the assembly of the bending press a system length 17 of the tool clamping adapter 16 is smaller than a total length 18 of Table and press bar 5, 9.
  • Examples of the system length 17, to name a few, are 100 mm, 250 mm or 500 mm.
  • the assembly of the tool clamping adapter 16 with bending tools 15 is usually carried out by a juxtaposition to a required bending length by similarly shaped available in different widths individual tools in the formations as bending dies and Biegegesenke.
  • the tool clamping adapter 16 is provided, for example, with the clamping means 14 and has a receiving groove for the bending tools 15 in which they are accurately positioned and quickly fixed exchangeably for retrofitting.
  • the tool sets 10, 11 are the support surfaces 12, 13 outstanding on the table bar 5 and press bar 9 adjustable between a first tool position 19 and a second tool position 20 in the direction of the total length 18 - according to double arrow 21 - each supported by a tool positioning device 22 and in the optionally einEnglishbaren tool positions 19, 20 detectable.
  • two tool positions 19, 20 are provided, wherein the first tool position 19, the tool sets 10, 11 in a position aligned with side surfaces 23, 24 of the table beam 5 and press bar 9 and in a second position aligned with a median plane 25 of the bending press. 1 provides, with the tool positions 19, 20 overlap.
  • Fig. 1 there is a preferred assembly of the bending press 1 with two of the tool sets 11 on the table bar 5 and two of the tool sets 10 on the press bar 9, the system length 17 and the total length 18 are matched to one another such that at a corresponding overlap of the tool positions 19, 20th the above-described positions of the tool sets 10, 11 are taken and a corresponding adjustment range 31 is achieved by the tool positioning device 22 described below.
  • FIGS. 3 to 5 show now a possible embodiment of the tool-positioning device 22 using the example of the tool set 10 on the press bar 9, it being understood that the configuration is also for the other tool positioning devices 22 to the described uniform.
  • a receiving groove 32 is arranged with a T-cross section extending over the entire length 18. Extending over half the total length 18, receiving chambers 35 formed by depressions in side flanks 33, 34 of the receiving groove 32 are arranged in this receiving groove 32 in which two pairs of positioning elements 36 are arranged, which have claw-shaped extensions 37, 38.
  • the claw-shaped projections 37, 38 are spaced from each other and parallel and extend beyond the positioning element 36.
  • a width 40 of the positioning element 36 is smaller than a width 41 of the receiving chamber 35 formed by the cutouts.
  • an adjustment perpendicular to a longitudinal central axis 42, corresponding to an X-axis direction of the positioning element 36 in the receiving chamber 35, is indicated along a cylindrical guide means 44 which slidably supports the positioning element 36 in the receiving chamber 35 reaches.
  • Such a positioning operation in the tool positions by adjusting the positioning elements 36 by means of the screws 45 is to be regarded as a single commissioning or maintenance operation and ensures an exactly reproducible position of the tool set bez. the X position - according to double arrow 43- after each adjustment between the tool positions.
  • the pairwise cooperating positioning elements 36 are arranged with respect to the stop and Zentrieraidn 39 with rectilinear projections 37, 38 in the T-groove and in contrast, the extensions 37, 38 of the other pair of positioning elements 36 are directed gegentechnisch, whereby for the adjustment of the tool clamping adapter 16th for each of the tool positions exactly acting stop means consist of the positioning elements 36.
  • the positioning means 46 are formed by threaded dowels 47 with rotatably mounted on these dowel sleeves 48, wherein the dowel sleeves 48 for positioning the tool chuck adapter 16 with the stop and Zentrierfactn 39 of the positioning elements 36 per pair of oppositely oriented positioning 36 and each Tool position can be brought into engagement. It is advantageous to provide 48 diametrically opposite flats on the circumference of the dowel sleeves, which cooperate with each other against opposite centering surfaces of the extensions 37, 38. It is also advantageous if the extensions 37, 38 exert a spring action directed against the flats on the fitting sleeve, thereby preventing lateral play.
  • the pair of provided on the tool clamping adapter 16 threaded dowel pins 47 are connected to a guide bar 49, which is slidably disposed in the receiving groove 32, in particular the T-slot, whereby in a suspended arrangement of the tool clamping adapter 16, according to the example described, a secured stop of the tool set 10 on the press bar 9 is achieved.
  • the threaded dowel pins 47 protrude with a threaded extension 50 into a slot-shaped recess 51 arranged in the tool clamping adapter 16, in which a clamping nut 52 is provided on the threaded extension 50.
  • this clamping nut 52 takes place by applying a clamping force between the located in the receiving groove 32 guide bar 49 via the threaded dowel pin 47 fixing the position of the horradapters 16 on the press bar 9. After loosening the clamping nut 52 and thus canceling the clamping force on the other hand, the adjustment of the tool set 10 allows.
  • a center distance 53 between the positioning means 46 is slightly greater than a center distance 54 of the stop and Zentrierfactn 39 of the pair of cooperating positioning elements 36, whereby a small longitudinal play between the positioning elements 36 and the positioning means 46 is achieved and thus the stop position in the direction of the longitudinal extent of Press bar 9 is ensured by an end stop on only one of the positioning means 46.
  • the Indian Fig. 5 shown tool clamping adapter 16 is according to a possible variant in two-piece design and includes an adapter block 55 which is adjustably mounted on the tool positioning device 22 in the receiving groove 32 of the press bar 9, as already described above.
  • an adapter block 55 which is adjustably mounted on the tool positioning device 22 in the receiving groove 32 of the press bar 9, as already described above.
  • the Fig. 6 Similar to the previous description, the arrangement of the tool clamping adapter 16 with the bending tool 15 and the tool positioning device 22 on the fixed table bar 5.
  • the receiving groove 32 is provided in the support surface 13, in which the positioning element 36 are arranged with the projections 37, 38 for receiving the dowel sleeves 48 of the positioning means 46 and thus an exact positioning of the bending tool 15 receiving tool clamping adapter 16 to the adjustment of the tool set eleventh guaranteed in the selectable tool positions.
  • the Indian Fig. 6 shown tool clamping adapter 16 is according to another variant in one-piece design and is the adapter block 55 with the tool head 58 receiving groove 57 and the clamping means 14, such as clamping screws, hydraulic clamping means, etc., for the clamping of the bending tool 15th
  • two tool sets 10, 11 are arranged adjustable by means of one of the tool positioning devices 22 between a first tool position 19 and a second tool position 20 on the table bar 5 and on the press bar 9.
  • first tool position 19 are like the Fig. 1 can be seen, the tool sets 10, 11 with side surfaces 23, 24 of the table beam 5 and press bar 9 positioned in alignment.
  • the total length 18 of the tool bar 2 is twice the system length 17 of the tool sets 10, 11 plus twice the adjustment range 31.
  • the second tool position 20 like the Fig. 2 can be seen after the above length adjustment of the total length 18 and the system length 17 so that the tool sets after an adjustment to the adjustment 31 - according to arrows 21 in Fig.1 - Positioned in alignment with the median plane 25.

Landscapes

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

Claims (17)

  1. Presse plieuse (1) avec un dispositif de positionnement d'outil (22) pour au moins deux positions d'outil (19, 20) pouvant être définies sélectivement dans la direction d'une longueur (18) d'une poutre d'outils (2) de la presse plieuse (1) pour au moins un ensemble d'outils (10, 11) d'un adaptateur de serrage d'outil (16) et au moins un outil de cintrage (15), caractérisé en ce que pour chaque position d'outil (19, 20) reliée à la poutre d'outils (2) est fournie une paire d'éléments de positionnement (36) en forme de griffe espacés dans le sens de la longueur (18) de la poutre d'outils (2), qui sont à distance l'un de l'autre sur une plage de réglages (55) de l'ensemble d'outils (10, 11), et l'adaptateur de serrage d'outil (16) est monté pouvant être réglé dans une rainure de réception (32) s'étendant dans la direction de la longueur (18) de la poutre d'outils (2), et présente une paire de moyens de positionnement (46) pouvant être mis en prise avec les éléments de positionnement (36) dans les positions d'outil respectives (19, 20).
  2. Presse plieuse (1) selon la revendication 1, caractérisée en ce que l'adaptateur de serrage d'outil (16) est formé d'un seul tenant, et présente un logement d'outil (59) et des moyens de serrage (14) pour l'assemblage avec les outils de cintrage (15).
  3. Presse plieuse (1) selon la revendication 1, caractérisée en ce que l'adaptateur de serrage d'outil (16) et le logement d'outil (59) présentant les moyens de serrage (14) sont formés en deux parties.
  4. Presse plieuse (1) selon la revendication 1, caractérisée en ce que la poutre d'outils (2) forme une poutre de banc fixe (5) et un pressoir (9) pouvant être réglé par rapport à celle-ci.
  5. Presse plieuse (1) selon la revendication 1, caractérisée en ce que la rainure de réception (32) est formée par une rainure en T agencée dans une surface d'appui (12, 13) de la poutre d'outils (2).
  6. Presse plieuse (1) selon la revendication 1, caractérisée en ce que l'élément de positionnement (36) est agencé dans une chambre de réception (35) de la rainure de réception (32).
  7. Presse plieuse (1) selon la revendication 1 ou 6, caractérisée en ce que l'élément de positionnement (36) est réalisé pouvant être réglé dans une direction s'étendant transversalement à la dimension longitudinale de la rainure de réception (32).
  8. Presse plieuse (1) selon la revendication 7, caractérisée en ce que l'élément de positionnement (36) est monté pouvant être réglé le long d'une broche de guidage (44) s'étendant transversalement à la rainure de réception (32).
  9. Presse plieuse (1) selon la revendication 7, caractérisée en ce que des vis de réglage (45) sont prévues sur le pressoir (2), pour le réglage des éléments de positionnement (36).
  10. Presse plieuse (1) selon la revendication 1, caractérisée en ce que les moyens de positionnement (46) sont formés par une goupille filetée (47) prévue avec une douille d'ajustement (48) et venant en prise dans la rainure de réception (32).
  11. Presse plieuse (1) selon la revendication 10, caractérisée en ce que la douille d'ajustement (48) est montée de manière rotative sur la goupille filetée (47).
  12. Presse plieuse (1) selon la revendication 1, caractérisée en ce que des extensions (37, 38) faisant saillie des éléments de positionnement en forme de griffe (36) dans une direction de réglage de l'ensemble d'outils (10, 11), forment un logement de butée et de centrage (39) pour les moyens de positionnement (46).
  13. Presse plieuse (1) selon la revendication 12, caractérisée en ce que les extensions (37, 38) de chaque paire d'éléments de positionnement (36) s'étendent de manière alignée dans la rainure de réception (32).
  14. Presse plieuse (1) selon la revendication 12, caractérisée en ce que les extensions (37, 38) des éléments de positionnement (36) prévus par paire pour chaque position d'outil (19, 20) sont agencées dans des directions opposées les unes par rapport aux autres.
  15. Presse plieuse (1) selon la revendication 12, caractérisée en ce qu'entre la paire d'éléments de positionnement (36) est agencée une position d'outil (19) d'un élément de positionnement (36) de la paire suivante d'éléments de positionnement (36) de la position d'outil (20) suivante.
  16. Presse plieuse (1) selon la revendication 1, caractérisée en ce que l'adaptateur d'outil de serrage (16) est supporté sur la poutre d'outils (2) par l'intermédiaire d'un rail de guidage (49) relié à la paire des moyens de positionnement (46) et monté pouvant être réglé dans la rainure de réception (32), et peut être fixé contre une surface d'appui (12, 13) de la poutre d'outils (2) dans la position d'outil (19, 20).
  17. Presse plieuse (1) selon la revendication 1, caractérisée en ce que deux des dispositifs de positionnement d'outil (22) selon l'une quelconque des revendications 1 à 16 sont prévus sur la poutre d'outils (2) dans la direction de la longueur (18).
EP12720066.5A 2011-03-14 2012-03-13 Dispositif de positionnement d'outil sur une presse à cintrer Active EP2686120B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3462011A AT510721B1 (de) 2011-03-14 2011-03-14 Werkzeug-positioniervorrichtung an einer biegepresse
PCT/AT2012/050033 WO2012122580A1 (fr) 2011-03-14 2012-03-13 Dispositif de positionnement d'outil sur une presse à cintrer

Publications (2)

Publication Number Publication Date
EP2686120A1 EP2686120A1 (fr) 2014-01-22
EP2686120B1 true EP2686120B1 (fr) 2017-04-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12720066.5A Active EP2686120B1 (fr) 2011-03-14 2012-03-13 Dispositif de positionnement d'outil sur une presse à cintrer

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EP (1) EP2686120B1 (fr)
AT (1) AT510721B1 (fr)
WO (1) WO2012122580A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514788B1 (de) * 2013-09-10 2015-05-15 Trumpf Maschinen Austria Gmbh Biegewerkzeug aus mehreren Werkzeugelementen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540756A1 (fr) * 1983-02-15 1984-08-17 Promecan Sisson Lehmann Dispositif adaptateur pour le montage de poincons de pliage sur une presse plieuse
JPH06262263A (ja) * 1993-03-15 1994-09-20 Yazaki Corp プレスブレーキ上型クランプ装置
TW365857U (en) * 1994-05-17 1999-08-01 Amada Metrecs Co Upper tool and upper tool holder apparatus for press brake
DE19513576C2 (de) * 1995-04-19 1997-04-30 Guenzburger Werkzeugmaschinenf Werkzeugträger für eine Biegepresse
JP2921741B2 (ja) * 1995-10-02 1999-07-19 株式会社アマダメトレックス プレスブレーキにおける上型ホルダ装置
IT1317545B1 (it) * 2000-05-16 2003-07-09 Abiemme Srl Sistema a comando pneumatico per il serraggio rapido degli utensili in presse piegatrici
ITRE20030101A1 (it) * 2003-10-20 2005-04-21 Ferrari Cost Mecc Snc Gruppo portautensili per presse piegatrici.
US7296457B2 (en) * 2004-06-25 2007-11-20 Wilson Tool International Inc. Thermally-actuated press brake tool holder technology
US20090071223A1 (en) * 2007-09-19 2009-03-19 Rogers Bryan L Staged Tooling Technology
AT508858B1 (de) * 2009-10-14 2011-07-15 Trumpf Maschinen Austria Gmbh Presse mit werkzeug-wechseleinrichtung

Also Published As

Publication number Publication date
AT510721B1 (de) 2012-06-15
EP2686120A1 (fr) 2014-01-22
AT510721A4 (de) 2012-06-15
WO2012122580A1 (fr) 2012-09-20

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