EP2686120A1 - Dispositif de positionnement d'outil sur une presse à cintrer - Google Patents

Dispositif de positionnement d'outil sur une presse à cintrer

Info

Publication number
EP2686120A1
EP2686120A1 EP12720066.5A EP12720066A EP2686120A1 EP 2686120 A1 EP2686120 A1 EP 2686120A1 EP 12720066 A EP12720066 A EP 12720066A EP 2686120 A1 EP2686120 A1 EP 2686120A1
Authority
EP
European Patent Office
Prior art keywords
tool
positioning
positioning device
bar
receiving groove
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
EP12720066.5A
Other languages
German (de)
English (en)
Other versions
EP2686120B1 (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
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 EP2686120A1 publication Critical patent/EP2686120A1/fr
Application granted granted Critical
Publication of EP2686120B1 publication Critical patent/EP2686120B1/fr
Active 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
    • 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 tool positioning device for bending tools of a bending press as described in the preamble of claim 1.
  • 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.
  • an embodiment according to claim 12 is also advantageous, as a result of which precise positioning is ensured both in the X direction and in the Z direction of the tool sets on the tool bar.
  • FIG. 2 shows a partial region of the bending press
  • 3 shows a tool positioning device according to the invention cut along the lines III-III in Fig. 4;
  • a bending press 1 is shown in a simplified representation with two tool bars 2 adjustable relative to each other.
  • a press frame 3 in particular on side posts 4 a fixed table bar 5 is attached.
  • a drive assembly 6 for example electromotive spindle drive 7, according to double arrow 8 adjustable press bar 9.
  • other drive systems 6, such as hydraulic drives with arranged on the side stands, 4 hydraulic cylinders, hydraulic motor spindle drive, etc., for the drive of the press bar 9 possible.
  • Each of the tool sets 10, 11 is preferably formed by a clamping device 14 having 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 of 18th of the 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 horrendern 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 engageable tool positions 19, 20 lockable.
  • 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, wherein the system length 17 and the total length 18 are coordinated with one another in such a way that a corresponding overlap of the tool positions 19, 20, 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 now show a possible embodiment of the tool positioning device 22 using the example of the tool set 10 on the press beam 9, wherein it should be noted that the design is also uniform for the other tool positioning devices 22 described above.
  • 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.
  • 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 a precisely reproducible position of the tool set bez. the X position - according to double arrow 43- after each adjustment between seeing 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 diametrically opposite flats on the circumference of the dowel sleeves 48 which cooperate with each other against overlying centering surfaces of the projections 37, 38. Another advantage is when the extensions 37, 38 exert a directed against the flats on the fitting sleeve spring action whereby a lateral play is prevented.
  • 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 larger than a center distance 54 of the stop and Zentrierfactn 39 of the pair of cooperating positioning elements 36, whereby a small longitudinal clearance between the positioning elements 36 and the positioning means 46 is achieved and thus the stop position in the direction of the longitudinal ser Extension of the press bar 9 is ensured by an end stop on only one of the positioning means 46.
  • the tool clamping adapter 16 shown in FIG. 5 is in a two-piece design according to a possible variant and comprises an adapter block 55 which is adjustably mounted via the tool positioning device 22 in the receiving groove 32 of the press beam 9, as already described above.
  • An end face 56 has a groove 57 for receiving a tool head 58 and the clamping means 14, e.g. Clamping screws, hydraulic clamping means, etc., provided tool holder 59 attached.
  • FIG. 6 relates analogously to the preceding description, the arrangement of the tool clamping adapter 16 with the bending tool 15 and the tool positioning device 22 on the stationary table beam. 5
  • the receiving groove 32 is provided in the support surface 13, in which the positioning element 36 with the projections 37, 38 for receiving the dowel sleeves 48 of the positioning means 46 are arranged and thus exact positioning of the bending tool 15 receiving tool clamping adapter 16 to the adjustment of the tool set 11 is ensured in the selectable tool positions.
  • the threaded dowel pin 47 at its opposite ends in each case the threaded extension 50 on.
  • the tool clamping adapter 16 shown in FIG. 6 is according to another variant in one-piece design and the adapter block 55 with the tool head 58 receiving groove 57 and the clamping means 14, e.g. Clamping screws, hydraulic clamping means, etc., for the clamping of the bending tool 15th
  • two tool sets 10, 11 are arranged in an adjustable manner on the table bar 5 and on the press bar 9 by means of one of the tool positioning devices 22 between a first tool position 19 and a second tool position 20.
  • the tool sets 10, 11 with side surfaces 23, 24 of the table beam 5 and press bar 9 are 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.
  • FIGS. 3 to 6 show the subject matter of independent solutions according to the invention.
  • the relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
  • Tool bar 42 Longitudinal center axis Press frame 43 Double arrow Kickstand 44 Guide means Table bar 45 Set screw Drive arrangement 46 Positioning means Spindle drive 47 Threaded dowel pin Double arrow 48 Adapter sleeve

Landscapes

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

Abstract

L'invention concerne un dispositif de positionnement d'outil (22) pour au moins deux positions d'outil (19, 20) pouvant être définies sélectivement dans le sens d'une longueur (18) d'une barre d'outil (2) d'une presse à cintrer (1) pour au moins un jeu d'outils (10, 11) composé d'un adaptateur de serrage d'outil (16) et d'au moins un outil de cintrage (15). La barre d'outil (2) comporte par position d'outil (19, 20) une paire d'éléments de positionnement en forme de pince, espacés dans le sens de la longueur (18) de la barre d'outil (2) et distants l'un de l'autre autour d'une zone de réglage (55) du jeu d'outils (10, 11). L'adaptateur de serrage d'outil (16) est monté de manière réglable dans une rainure de logement (32) s'étendant dans le sens de la longueur (18) de la barre d'outil (2) et comporte une paire de moyens de positionnement pouvant être amenés en prise avec les éléments de positionnement dans la position d'outil (19, 20) respective.
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 true EP2686120A1 (fr) 2014-01-22
EP2686120B1 EP2686120B1 (fr) 2017-04-19

Family

ID=46052475

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

Country Status (3)

Country Link
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012122580A1 *

Also Published As

Publication number Publication date
EP2686120B1 (fr) 2017-04-19
AT510721A4 (de) 2012-06-15
AT510721B1 (de) 2012-06-15
WO2012122580A1 (fr) 2012-09-20

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