WO2012175224A2 - Matrice de pliage - Google Patents

Matrice de pliage Download PDF

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Publication number
WO2012175224A2
WO2012175224A2 PCT/EP2012/002672 EP2012002672W WO2012175224A2 WO 2012175224 A2 WO2012175224 A2 WO 2012175224A2 EP 2012002672 W EP2012002672 W EP 2012002672W WO 2012175224 A2 WO2012175224 A2 WO 2012175224A2
Authority
WO
WIPO (PCT)
Prior art keywords
die
free
bending
adjustable
floating
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.)
Ceased
Application number
PCT/EP2012/002672
Other languages
German (de)
English (en)
Other versions
WO2012175224A3 (fr
Inventor
Francky Gaston Havegeer
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.)
HACO NV
Original Assignee
HACO NV
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 HACO NV filed Critical HACO NV
Publication of WO2012175224A2 publication Critical patent/WO2012175224A2/fr
Publication of WO2012175224A3 publication Critical patent/WO2012175224A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the invention relates to an adjustable free-floating die for freeing metallic workpieces in a die-bending press, comprising two die parts mounted on a die base and provided thereon with mutually parallel support surfaces defining a support plane for supporting the workpiece during the bending operation. leave a curved bending space for the free-bending process and adjustable to adjust the Gesenkweite relative to each other are connected to the die base.
  • Free-bending dies for so-called free bending of workpieces are basically to be distinguished from bending dies for embossing bending or for three-point bending. Characteristic of the free bending is that the workpiece during the bending operation, the die touches only at the parallel and spaced support surfaces, while it is pressed down by the punch in the middle, without touching the die.
  • the workpiece is additionally stamped between the punch and the die (die) with high pressure.
  • the punch presses down the workpiece in the bending die to contact the die at a third point.
  • CONFIRMATION COPY Bending on metallic workpieces is usually sufficient, depending on the properties of the workpiece and the span of the Freibiegegesenkes to precisely control the stroke of the punch, which is possible with a relatively simple CNC control. In this way, you save yourself against the embossing bending and three-point bending frequent tool changes. This is particularly useful when one and the same bending press successively different bending operations to be performed.
  • the invention proposes, starting from the adjustable free-floating die of the aforementioned type, that the Gesenkbasis between the two adjustable die parts is provided with fastening means for releasably mounting a separate Freibiegegesenkes with fixed Gesenkweite, wherein the separate free-floating die has a support plane over the support level of the adjustable free-floating die is located and has a Gesenkweite, which is smaller than the smallest die width of the adjustable Freibiegegesenkes.
  • the invention it is possible to supplement the adjustable free-floating die of the type mentioned in a few steps to the effect that tighter bending radii can be achieved, without complete tool change.
  • the invention thus advantageously supplements the Application of the adjustable in the Gesenkweite free bending Gesges of the aforementioned type.
  • a free-floating die is provided as a result which combines the properties of variable-pitch free-swing dies with the properties of free-swing dies of fixed die-width. Therefore, it is not necessary according to the invention, if necessary, to exchange a free-floating die with a variable die width against a free-die die with a fixed die width, or vice versa, which would be relatively time-consuming and thereby increase the production costs of bent, metallic workpieces produced here. Instead, according to the invention, the variable-pitch floating die may remain connected to the die base. As a result, the free-floating die according to the invention permits a variety of bending operations to be carried out, without thereby prolonging the production of correspondingly bent metallic workpieces and thus making them more expensive.
  • the separate free-floating die also has a V-shaped free space for the free-bending operation in a fixed die width.
  • a narrower V-shaped bending clearance is arranged in the further V-shaped bending clearance of the adjustable free-bending linkage.
  • a parallel to the longitudinal extension of the Freibiegegesenkes extending groove is arranged at the top of the die base between the adjustable die parts, in which a Gesenkfuß the separate free-bending die is fixed.
  • a further advantageous embodiment of the invention provides that a clamping mechanism is arranged on the die base, via which the Gesenkfuß arranged in the groove can be clamped.
  • the clamping mechanism has at least one clamping screw, which is mounted by rotation about its longitudinal axis transversely to the longitudinal extent of the groove movable on the hinge base.
  • the clamping mechanism has a number of clamping screws suitable for dimensioning the groove and the die foot in the direction of the longitudinal extension of the free-floating die in order to ensure a secure hold of the separate free-floating die on the die base.
  • each of the two Gesenkmaschine a parallel to the longitudinal extent of the Freibiegegesenkes extending, circular or circular in cross-section formed metal rod and a holder holding them, wherein the holder are fixed to the die base and the metal rod to the holder.
  • metal rods with different diameters can be fastened to the holders.
  • the round configuration of the metal bars provides ideal support surfaces of the two die parts for the metallic workpiece during the bending operation, so that the portions of the metallic workpiece contacting the die parts during bending remain undamaged, which is not the case, for example, with a squared contact surface on the die parts would be guaranteed.
  • FIG. 1 shows a cross section through an exemplary embodiment of the free-floating die according to the invention with a separate free-floating die set in
  • FIG. 2 shows the exemplary embodiment shown in FIG. 1 without a separate free-floating die
  • Figure 3 the embodiment shown in Figure 2 with modified die width.
  • Figure 1 shows an embodiment of the bending die 1 according to the invention in cross section.
  • the free-floating die 1 comprises two die parts 2 and 3 as well as a die base 4 which is essentially U-shaped in cross-section. These parts together enclose a substantially V-shaped adjustable bending clearance for the bending operations (compare FIGS. 2 and 3).
  • the die base 4 is connectable to a press beam or press table of a not shown Gesenkbiegepresse.
  • the die parts 2 and 3 are screwed to the die base 4 with screws 5 and 6, respectively.
  • the die base 4 has transversely to the standing perpendicular to the plane of the longitudinal extension of the Freibiegegesenkes 1 a plurality of holes 7, in which the screws 5 and 6 can be screwed, whereby the die parts 2 and 3 at different distances from each other at the die base 4 are festschraubbar that a variation of the Gesenkweite w1 of the free-floating die 1 can take place (compare Figures 1 and 2).
  • Each of the two die parts 2 and 3 has a parallel to the longitudinal extension of the free-flowing die 1 extending, circular in cross-section
  • Metal rod 8 and 9 made of steel and a holder holding them 10 and 11, wherein the holders 10 and 11 are secured by screws 5 and 6 on the die base 4 and the metal rods 8 and 9 on the holders 10 and 11 respectively.
  • the latter is also done by screws 12 and 13. Since Figure 1 shows only a cross section of the free-floating die 1, it is not apparent that, if necessary, before or after the holes 7 further corresponding holes 7 can be arranged in the die base 4, which with additional screws arranged in front of or behind the screws 5 and 6 can cooperate.
  • the parallel metal rods 8 and 9 support the workpiece during the bending process (see Figures 2 and 3) and together define the support plane S1 and the die width w1 of the adjustable free-swing die 1.
  • a parallel to the longitudinal extent of the Freibiegegesenkes 1 extending, U-shaped groove 14 is disposed in the middle between the die parts 2 and 3, in which a Gesenkfuss 15 a separate free-bending die 16 is fixed with Gesenkweite fixed.
  • a clamping mechanism is provided on the die base 4, by means of which the countersunk foot 15 arranged in the groove 14 can be clamped.
  • This clamping mechanism has a plurality in the direction of the longitudinal extension of the Freibiegegesenkes 1 successively arranged clamping screws 17, of which only one is shown due to the cross-sectional view and which is mounted by rotation about its longitudinal axis transversely to the longitudinal extent of the groove 14 movable on the die base 4.
  • the separate free-floating die 16 likewise has a bending clearance which is V-shaped in cross-section, but which is considerably narrower than the bending clearance of the adjustable free-floating die 1.
  • the die width w2 between the work support surfaces of the separate free-floating die 16 is smaller than the smallest possible die width w1 of the adjustable free-swing die 1.
  • the support plane S2 of the separate free-floating die 16 is above the support plane S1 of the adjustable free-swing die 1.
  • Figure 2 shows the illustrated in Figure 1, adjustable in its Gesenkweite w1 free bending die 1 without installable separate Freibiegegesenk 16 with fixed Gesenkweite 2. Instead, a bent by means of the Freibiegegesenkes 1, metallic workpiece 18 is shown during the bending process. The metallic workpiece 18 comes into contact with the metal bars 8 and 9 during the bending operation alone.
  • FIG. 3 shows the embodiment shown in FIG. 2 in the same situation with modified die width W1. This has been produced in that the two die parts 2 and 3 have been screwed at a greater distance from each other to the die base 4. As a result, the workpiece 8 is thereby bent with a larger bending radius.

Landscapes

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

Abstract

L'invention concerne une matrice de pliage non guidé réglable destinée au pliage libre de pièces métalliques dans une presse plieuse comprenant deux parties de matrice (2, 3) montées sur une base de matrice (4) et pourvues par le dessus de surfaces d'appui s'étendant parallèlement les unes aux autres, définissant un plan d'appui (s1) et destinées à s'appuyer sur la pièce pendant le procédé de pliage, laissant entre elles un espace libre de pliage en forme de V pour le procédé de pliage non guidé et reliées à la base de matrice (4) pour régler la largeur de matrice (w1) l'une par rapport à l'autre. L'invention vise à pouvoir travailler avec une matrice de pliage non guidé de ce type sans changement complexe d'outil, y compris lorsque les largeurs de la matrice sont plus étroites. A cet effet, la base de matrice (4) est pourvue entre les deux pièces de matrice (2, 3) réglables de moyens de fixation destinés au montage détachable d'une matrice de pliage non guidé (16) séparée à largeur fixe, la matrice de pliage non guidé (16) séparée présentant un plan d'appui (s2) situé au-dessus du plan d'appui (s1) de la matrice de pliage non guidé (1) réglable et une largeur de matrice (w2) inférieure à la plus petite largeur de matrice (w1) de la matrice de pliage non guidé (1).
PCT/EP2012/002672 2011-06-24 2012-06-25 Matrice de pliage Ceased WO2012175224A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011105743A DE102011105743A1 (de) 2011-06-24 2011-06-24 Biegegesenk
DE102011105743.2 2011-06-24

Publications (2)

Publication Number Publication Date
WO2012175224A2 true WO2012175224A2 (fr) 2012-12-27
WO2012175224A3 WO2012175224A3 (fr) 2013-04-11

Family

ID=46581880

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/002672 Ceased WO2012175224A2 (fr) 2011-06-24 2012-06-25 Matrice de pliage

Country Status (2)

Country Link
DE (1) DE102011105743A1 (fr)
WO (1) WO2012175224A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111842572A (zh) * 2020-08-03 2020-10-30 西安信康实业有限公司 一种变压器油箱制作用型材弯曲机
FR3139017A1 (fr) * 2022-08-26 2024-03-01 Axone Industries Dispositif de pliage de plats épais jusque 100 mm de large pour obtenir un angle fermé à 30° et un très faible rayon de courbure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114871338A (zh) * 2022-05-19 2022-08-09 苏州洲洋精密机械科技有限公司 一种便捷式多功能可调模具

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740815A1 (de) * 1987-08-20 1989-03-02 Banning Ag J Schmiede-, insbesondere gesenkhammer
CH680772A5 (fr) * 1989-09-11 1992-11-13 Beyeler Machines Sa
JP2537291Y2 (ja) * 1991-10-15 1997-05-28 株式会社アマダ プレスブレーキ用金型
JP2813108B2 (ja) * 1993-07-02 1998-10-22 新日本製鐵株式会社 帯板曲げ加工装置
SE0001294D0 (sv) * 2000-04-07 2000-04-07 Pullmax Ursviken Ab Underverktyg vid kantpress
EP1513628B1 (fr) * 2002-06-19 2005-08-31 Acera S.A. Moule reglable
AT506313B1 (de) * 2008-02-19 2009-08-15 Trumpf Maschinen Austria Gmbh Biegegesenk für eine biegepresse, insbesondere abkantpresse
AT507911B1 (de) 2009-03-04 2010-11-15 Trumpf Maschinen Austria Gmbh Verfahren zum freibiegen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111842572A (zh) * 2020-08-03 2020-10-30 西安信康实业有限公司 一种变压器油箱制作用型材弯曲机
FR3139017A1 (fr) * 2022-08-26 2024-03-01 Axone Industries Dispositif de pliage de plats épais jusque 100 mm de large pour obtenir un angle fermé à 30° et un très faible rayon de courbure

Also Published As

Publication number Publication date
WO2012175224A3 (fr) 2013-04-11
DE102011105743A1 (de) 2012-12-27

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