EP0076783B1 - Machine à cintrer des tubes et des barres profilés - Google Patents

Machine à cintrer des tubes et des barres profilés Download PDF

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Publication number
EP0076783B1
EP0076783B1 EP82810406A EP82810406A EP0076783B1 EP 0076783 B1 EP0076783 B1 EP 0076783B1 EP 82810406 A EP82810406 A EP 82810406A EP 82810406 A EP82810406 A EP 82810406A EP 0076783 B1 EP0076783 B1 EP 0076783B1
Authority
EP
European Patent Office
Prior art keywords
bending
clamping jaw
die
support
plate
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.)
Expired
Application number
EP82810406A
Other languages
German (de)
English (en)
Other versions
EP0076783A1 (fr
Inventor
Fritz Fischer
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.)
Individual
Original Assignee
Individual
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4307762&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0076783(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT82810406T priority Critical patent/ATE12463T1/de
Publication of EP0076783A1 publication Critical patent/EP0076783A1/fr
Application granted granted Critical
Publication of EP0076783B1 publication Critical patent/EP0076783B1/fr
Expired legal-status Critical Current

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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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member

Definitions

  • the invention relates to a bending machine according to the preamble of claim 1 or Z.
  • the tool change - especially when it comes to relatively large pipe diameters or large bending radii - is relatively cumbersome and time-consuming, because usually the bending shape and jaw on the Machine frame or bending head are screwed tight.
  • a separate bending shape is required for each bending pipe diameter and bending radius, which results in large tool investments.
  • the object of the invention is to achieve a bending machine, in particular for pipes, in which the tool change takes place significantly faster and is also greatly simplified and in which the tool costs can also be significantly reduced.
  • the bending machine designed as a tube bending machine contains, according to FIG. 1, a bending head 1 lying on the floor. This carries a sliding rail 9 movable in the longitudinal direction of the tube with a contact surface adapted to the tube diameter for receiving the tube 5 to be bent 1a of the bending head 1 and can be pivoted by a motor drive about a vertical bending axis.
  • the support 32 sits on a slide and can be set at a desired distance by means of toothed catches 34 by means of a clamping bracket 30.
  • the carriage is hydraulically fed to clamp the tube 5.
  • the clamping jaw 26 has a recess 27 with a radius which corresponds to the pipe 5 to be bent.
  • the bending die 7 is also provided with an approximately semicircular recess corresponding to the pipe 5 to be bent and has an insert 20 in the pipe clamping section - that is to say in the straight section in front of the bending radius - which also contains a semi-cylindrical recess.
  • An insert 20 of this type is expedient if bends are to be produced in a tube on the floor, which in different levels. After the formation of a first sheet, the entire bending die 7 no longer has to be replaced, but the replacement of the insert 20 is sufficient.
  • the bending die 7 is precisely but smoothly inserted over a cylindrical bending axis 4. This bending axis 4 is non-positively connected to the pivotable bending table 3 and can be exchanged for those with different diameters.
  • the bending axis 4 can be pivoted together with the bending table 3 about its own vertical axis if a corresponding pipe bend is to be carried out.
  • an adapter plate 16 is placed at the bottom, which has a slot 18, which is intended to interact with a driver 24 which is held in the bending table 3 so as to be adjustable in height. If the adapter plate 16 rests on the top of the bending table 3 and this driver 24 engages in its slot 18, this causes a non-positive pivot connection between the bending table 3 and the adapter plate 16 together with the bending die 7 seated thereon.
  • the adapter plate 16 can, however, without screws or. To be solved are lifted off.
  • At least one further driver in the form of at least one vertical bolt 17, which brings about a non-positive connection between these two parts.
  • These bolts 17 and the associated bores in the counterpart have tolerances such that the bending die 7 can be easily lifted upwards in order to enable the bending die 7 to be separated from the adapter plate 16.
  • a mandrel 14 for receiving the pipe 5 to be bent from the front.
  • an elongated slide rail 9 which is also provided with a semicircular recess adapted to the pipe diameter.
  • This wedge 19 is designed as a square wedge, sits firmly in the bending die 7 and has a sliding fit in the insert 20.
  • the uppermost part of this wedge 19 penetrates a plate 40 which serves to regulate the height and preferably has a circular cross section in this area.
  • a vertical groove or dovetail connection could also be provided between the insert 20 and the bending die 7.
  • the plate 40 is rigidly connected to the insert 20 by means of screws 23 and extends over the parting line between the insert 20 and the bending die 7. On the part of this plate 40 projecting beyond the bending die 7 there is a regulating screw 25 with which the exact height of the insert 20 can be adjusted when used for the first time. It is thus possible to lift the insert 20 upwards by hand and to replace it with another insert if, for example, a previously attached, close pipe bend requires a special shape of this insert 20. This insert 20 is replaced without loosening screws or the like.
  • the jaws 26 are also easily and quickly exchangeable. There is also a wedge 44 extending in the vertical direction between this clamping jaw 26 and the intermediate piece 28.
  • a plate 36 is rigidly connected to the clamping jaw 26 by screws and extends over the joint between the clamping jaw 26 and the intermediate piece 28, the height position being able to be adjusted by a regulating screw 29 when it is used for the first time.
  • the jaw 26 can be lifted up by hand without screws and can be replaced by a jaw of a different design.
  • the intermediate piece 28 is rigidly connected in an analogous manner to the support 32, a plate 38 likewise being present, which is rigidly fastened to the intermediate piece by screws 41.
  • the center of the clamping jaw 26 is gradually offset from the center of the intermediate piece 28 against the bending axis 4; Furthermore, the center of the intermediate piece 28 is also offset from the center of the support 32, as a result of which a short clamping or clamping range of the pipe 5 to be bent can be achieved and bends which are close to one another can thereby be produced.
  • the clamping jaw 26 can also be connected directly to the support 32, avoiding the intermediate piece 28, in the same way as has already been described, so that the clamping jaw 26 can also be lifted upwards.
  • both the bending die 7 and the clamping jaw 26 - depending on the weight - can be lifted up by hand or by means of a crane or by only lifting the insert 20 also upwards and replacing it with another one becomes. If the intermediate piece 28 is dispensable, this can also be lifted up slightly.
  • At least one further, smaller adapter plate can be placed on the adapter plate 16, onto which one can be then the actual bending die 7 can be put on.
  • Bending dies 7 for large pipe diameters can be placed directly on the bending table 3 without an adapter plate 16.
  • the vertically movable driver 24 then engages directly in a recess, corresponding to the recess 18, of the bending die. Since there is no screw fastening between the bending die 7 and the bending table 3, the bending die 7 can be replaced by simply lifting it upwards.
  • such bending machines can also be used for bending profile rails or solid-walled bars.

Landscapes

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

Claims (4)

1. Machine à cintrer des tubes et des barres profilés, comprenant une table de cintrage (3) pouvant basculer autour d'une tête de cintrage (1) fixe, un outil de cintrage avec une matrice de cintrage (7) et une mâchoire de serrage (26) étant montés sur la table de cintrage (3) avec possibilité de basculer autour d'un axe vertical de cintrage (4) et des organes d'appui (2) pour la pièce à cintrer étant reliés à la tête de cintrage (3), la matrice de cintrage (7) étant enfilée sur l'axe de cintrage (4), des moyens étant prévus pour la transmission de la force de basculement entre la table de cintrage (3) et la matrice de cintrage (7) et la mâchoire de serrage (26) déterminée appliquée sur la pièce (5) étant bloquée par un support (32) s'appuyant sur la table de cintrage (3), avec interposition d'au moins une pièce intermédiaire (28), par des organes de liaison (22, 44) à complémentarité de forme et agencés de manière à ce que la mâchoire de serrage (26) puisse être enlevée par le haut, caractérisée en ce que la pièce intermédiaire (28) peut être aussi enlevée par le haut, en ce que tant sur la mâchoire de serrage (26) que sur la pièce intermédiaire (28) est fixée une plaque (36, 38) qui fait saillie au-dessus de la fente de séparation entre la mâchoire de serrage (26) et la pièce intermédiaire (28) ou le support (32) et qui porte une vis de réglage (29, 42) de réglage en hauteur de la mâchoire de serrage (26), et en ce que la matrice de cintrage (7) est fixée sur une plaque formant adapteur (16) montée de manière lâche sur l'axe de cintrage (4), en contact avec la table de cintrage (3), pouvant être retirée par le haut et coopérant avec un toc d'entraînement (24) réglable en hauteur et monté dans la table de cintrage (3) basculante.
2. Machine à cintrer des tubes et des barres profilés, comprenant une table de cintrage (3) pouvant basculer autour d'une tête de cintrage (1) fixe, un outil de cintrage avec une matrice de cintrage (7) et une mâchoire de serrage (26) étant montés sur la table de cintrage (3) avec possibilité de basculer autour d'un axe vertical de cintrage (4) et des organes d'appui (2) pour la pièce à cintrer étant reliées à la tête de cintrage (3), la matrice de cintrage (7) étant enfilée sur l'axe de cintrage (4), des moyens étant prévus pour la transmission de la force de basculement entre la table de cintrage (3) et la matrice de cintrage (7) et la mâchoire de serrage (26) déterminée appliquée sur la pièce (5) étant bloquée par un support (32) s'appuyant sur la table de cintrage (3), par des organes de liaison (22, 44) à complémentarité de forme et agencés de manière à ce que la mâchoire de serrage (26) puisse être enlevée par le haut, caractérisée en ce que sur la mâchoire de serrage (26) est fixée une plaque (36, 38) qui fait saillie au-dessus de la fente de séparation entre la mâchoire de serrage (26) et le support (32) et qui porte une vis de réglage (29) en hauteur de la mâchoire de serrage (26) et en ce que la matrice de cintrage (7) est fixée sur une plaque formant adapteur (16) montée de manière lâche sur l'axe de cintrage (4), en contact avec la table de cintrage (3), pouvant être retirée par le haut et coopérant avec un toc d'entraînement (24) réglable en hauteur et monté dans la table de cintrage (3) basculante.
3. Machine à cintrer selon les revendications 1 ou 2, dans laquelle la matrice de cintrage (7) contient dans sa partie de serrage de la pièce, une pièce rapportée (20), caractérisée en ce que la pièce rapportée (20) est une pièce rapportée (20) pouvant être enlevée par le haut et maintenue par des axes verticaux (17) pénétrant dans la plaque formant adapteur (16), une plaque (40), qui porte une vis de réglage (25) en hauteur de la pièce rapportée (20), faisant saillie au-dessus de la fente de séparation entre la matrice de cintrage (7) et la pièce rapportée (20).
4. Machine à cintrer selon les revendications 1 ou 2, caractérisée en ce que le milieu de la mâchoire de serrage (26) par rapport au milieu de la pièce intermédiaire (28) par rapport au milieu de la pièce intermédiaire (28) et le milieu de la pièce intermédiaire (28) par rapport au support (32) sont décalés par paliers (Fig. 4).
EP82810406A 1981-10-01 1982-09-29 Machine à cintrer des tubes et des barres profilés Expired EP0076783B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82810406T ATE12463T1 (de) 1981-10-01 1982-09-29 Biegemaschine fuer rohre und profilschienen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH632481 1981-10-01
CH6324/81 1981-10-01

Publications (2)

Publication Number Publication Date
EP0076783A1 EP0076783A1 (fr) 1983-04-13
EP0076783B1 true EP0076783B1 (fr) 1985-04-03

Family

ID=4307762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82810406A Expired EP0076783B1 (fr) 1981-10-01 1982-09-29 Machine à cintrer des tubes et des barres profilés

Country Status (3)

Country Link
EP (1) EP0076783B1 (fr)
AT (1) ATE12463T1 (fr)
DE (1) DE3262891D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005092B3 (de) * 2012-03-12 2013-06-27 Wafios Aktiengesellschaft Anordnung zum auswechselbaren Befestigen eines Biegewerkzeugs an einem einem Biegekopf einer Biegemaschine zugeordneten Halter
CN104874653A (zh) * 2015-05-07 2015-09-02 浙江利帆家具有限公司 一种圆管折弯装置的定位机构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1278066B1 (it) * 1995-05-12 1997-11-17 Cml Costr Mecc Liri Srl Gruppo di bloccaggio e traino di un tubo o profilato per macchine curvatubi con o senza anima interna e piegaferri, e macchine per il
CA2230271A1 (fr) * 1996-07-01 1998-01-08 Tools For Bending, Inc. Procede et appareil pour outillage a changement rapide
DE102005012551B4 (de) * 2005-03-18 2008-06-12 Tracto-Technik Gmbh Wechselvorrichtung für ein Biegemaschinensystem sowie ein Biegemaschinensystem und ein Verfahren zum Umrüsten einer Biegemaschine
CN103658397A (zh) * 2013-12-04 2014-03-26 中山市鑫海精密制造科技有限公司 U型五金件的加工方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL102760C (fr) * 1957-02-06
US4009601A (en) * 1975-01-24 1977-03-01 K.K. Shimizu Seisakusho Method of and apparatus for bending a double pipe
US4078411A (en) * 1976-11-15 1978-03-14 Eaton-Leonard Corporation Floating clamp die
US4083216A (en) * 1977-05-16 1978-04-11 Caterpillar Tractor Co. Support pin for clamping die assembly
DE2746721C3 (de) * 1977-10-18 1981-03-19 Schwarze, Rigobert, Dipl.-Ing., 5000 Köln Rohrbiegemaschine
US4178788A (en) * 1978-03-24 1979-12-18 Eaton-Leonard Corporation Adjustable clamp die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005092B3 (de) * 2012-03-12 2013-06-27 Wafios Aktiengesellschaft Anordnung zum auswechselbaren Befestigen eines Biegewerkzeugs an einem einem Biegekopf einer Biegemaschine zugeordneten Halter
CN104874653A (zh) * 2015-05-07 2015-09-02 浙江利帆家具有限公司 一种圆管折弯装置的定位机构

Also Published As

Publication number Publication date
ATE12463T1 (de) 1985-04-15
DE3262891D1 (en) 1985-05-09
EP0076783A1 (fr) 1983-04-13

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