EP0200979B1 - Machine à cintrer des tubes - Google Patents

Machine à cintrer des tubes Download PDF

Info

Publication number
EP0200979B1
EP0200979B1 EP86105500A EP86105500A EP0200979B1 EP 0200979 B1 EP0200979 B1 EP 0200979B1 EP 86105500 A EP86105500 A EP 86105500A EP 86105500 A EP86105500 A EP 86105500A EP 0200979 B1 EP0200979 B1 EP 0200979B1
Authority
EP
European Patent Office
Prior art keywords
clamping
bending
template
bending template
cheek
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
EP86105500A
Other languages
German (de)
English (en)
Other versions
EP0200979A3 (en
EP0200979A2 (fr
Inventor
Rigobert Dipl.-Ing. Schwarze
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6270419&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0200979(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
Publication of EP0200979A2 publication Critical patent/EP0200979A2/fr
Publication of EP0200979A3 publication Critical patent/EP0200979A3/de
Application granted granted Critical
Publication of EP0200979B1 publication Critical patent/EP0200979B1/fr
Expired legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • B21D7/021—Construction of forming members having more than one groove

Definitions

  • the invention relates to a pipe bending machine with the features of the preamble of claim 1.
  • a pipe bending machine of this type is known from EP-A-0 120 336.
  • a contact surface for exchangeably accommodating a clamping body provided with the clamping surface is provided on the bending template and the clamping jaw and each clamping body arranged on a guide and with a Hydraulic drive is provided, which moves the clamping body with a vertical movement along the contact surface so that one or the other clamping surface of the plurality of different clamping surfaces of the clamping body arranged one above the other gets into the plane of the groove of the bending template.
  • the present invention is based on the task of arranging and moving the clamping bodies on the bending template and on the clamping jaw in such a way that their rapid change is possible and the clamping surfaces which are not in operation when the tube is inserted into the tube bending machine or during bending are not to disturb.
  • the proposal to arrange the cylinder space for the drive of the clamping body of the bending template within the bending template and to arrange the cylinder space for the clamping body of the clamping jaw within the clamping jaw means that the hydraulic drive protrudes only a small amount above the top of the bending template or clamping jaw and therefore no or only insignificant hindrance can occur when inserting the tube or when bending.
  • the clamping bodies are connected to the associated piston rod via a cantilever.
  • a preferred exemplary embodiment of the invention provides that the overall height of the bending template and / or the clamping jaw is used to accommodate or partially accommodate the hydraulic cylinder.
  • the clamping jaw can be rotated in a manner known per se about a horizontal axis and has two flat surfaces which are adjacent to one another, preferably at a right angle, and on one of the two surfaces or on both surfaces the clamping body provided with several different clamping surfaces is slidably mounted. This measure makes it possible in a simple manner to arrange clamping surfaces of different designs in a comparatively narrow space and to bring them into effect quickly.
  • Another proposal is that there are three different clamping surfaces on top of one another on the clamping body arranged on the bending template and two different clamping surfaces arranged one behind the other and one above the other in the working position on the clamping jaw assigned to the clamping jaw.
  • FIG. 1 shows a conventional pipe bending machine with a feed carriage 10, which can slide back and forth on one or more guide rails 11 on the upper side of the machine housing 12.
  • the feed carriage 10 has a hollow cylinder 13, in the interior of which there is a clamping sleeve 14, in which the end region of the pipe section or pipe 15 to be bent is clamped.
  • the pipe section 15 is guided around a pivotably mounted bending template 16, which has a groove 17 for the pipe which corresponds to the pipe radius.
  • a clamping jaw 19 is pressed by means of a clamping device 18, which also has a groove corresponding to the pipe radius as clamping surface and clamps the pipe 15 on the bending template 16.
  • the bending template 16 is fixedly arranged on the bending table 21, while the clamping device 18 can be pushed back and forth in the indicated arrow direction 22 via the cylinder 20 shown as an example. If the bending template 16 is pivoted over the bending table 21 together with the clamping jaw 19 in the direction of the arrow 23, the pipe section 15 is given a curvature which corresponds to the profile of the bending template 16. During this bending process, the end part of the pipe section 15 remains clamped in the clamping sleeve 14 of the feed carriage 10 in order to safely guide the pipe section in all positions.
  • a slide rail 24 is pressed onto this pipe section part, which also has a groove which corresponds to the pipe radius.
  • the clamping sleeve 14 of the feed carriage 10 not only clamps the pipe section 15 firmly, but also turns it by amounts up to 360 ° if successive pipe bends are to be bent in different directions.
  • a hydraulic motor rotates a worm which interacts with a worm wheel (not shown) which is connected to the clamping sleeve 14.
  • FIG. 2 shows an exhaust pipe which can be produced with the bending machine and in which curved sections or pipe bends S 1 and S 2 as well as S 3 and S 4 are directly connected. There are also linear intermediate lengths L 1, L 2 and L 3, which, however, do not need to be present except for the length L 1.
  • FIG. 2 thus shows a tube in which there are partially straight intermediate lengths between bends and partially straight intermediate lengths between bends do not exist.
  • This tube shown in Figure 2 can be bent with a single relaxation on the tube bending machine. Such a machine is shown as an example in FIG. 3.
  • FIG. 3 shows that the cylinder space or cylinder 25 of the hydraulic drive, which has a piston 26 with a piston rod 27, is arranged within the bending template.
  • a right-angled outrigger 28 At the upper end of the piston rod there is a right-angled outrigger 28, on which a clamping element 30 is arranged via a fastening element 29, which has differently designed clamping surfaces 31 and 32 at two different heights.
  • the bending template has the bending groove 33.
  • the opposing clamping jaw 19 also has a cylinder 25a with a piston and piston rod of the design described above, so that the clamping body 30a with the associated clamping surfaces 31a and 32a arranged one above the other can be used in different operating positions.
  • the clamping jaw 19 can additionally be rotated about the horizontal axis 34, specifically via a hydraulic motor 35 which is provided with an extension arm 36 which is articulated on a rod 37 which is fastened to the axis 38 of the clamping jaw 19 .
  • the clamping jaw has two flat contact surfaces 39 and 40 adjoining at a right angle, the clamping body 30a with the different clamping surfaces 31a and 32a being slidably mounted on the contact surface 40, while a fixed clamping body 41 is arranged on the contact surface 39.
  • FIGS. 4 to 8 show different positions of the clamping body 30 relative to the opposite clamping body 30a or depending on the rotation of the clamping jaw relative to the opposite individual clamping body 41.
  • Figure 8 shows that a clamping body 30 is arranged on the bending template 16, which has three clamping surfaces arranged one above the other of different dimensions or design.
  • Clamping bodies 30a and 41a are present on the clamping jaw 19, which can be moved on the associated contact surfaces by means of a hydraulic drive and each have two different clamping surfaces.

Landscapes

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

Claims (3)

1. Machine à cintrer des tubes, comprenant une table de cintrage (21) qui peut pivoter autour d'un axe vertical et comporte un gabarit de cintrage (16) et une mâchoire de serrage (19) pouvant être déplacée vers celui-ci, cette table étant pourvue d'un chariot d'avance (10) déplaçable, qui comporte un manchon de serrage (14) rotatif, le gabarit de cintrage (16) et la mâchoire de serrage (19) possédant des surfaces de serrage (31, 32; 31a, 32a) qui sont associées deux à deux et sont adaptées à des tronçons rectilignes et incurvés du tube à cintrer et qui, chaque paire, sont séparées l'un de l'autre dans l'espace et peuvent être amenées en postition de travail, tandis que, pour le gabarit de cintrage (16) et la mâchoire de serrage (19), il est prévu, sur chacun d'eux, une surface d'appui (40), en particulier un évidement, destinée à recevoir, de manière interchangeable, un bloc de serrage (30, 30a) présentant la surface de serrage (31, 32 ; 31a 32a) et que chaque bloc de serrage (30, 30a) est associé à un guidage et est pourvu d'un entraînement hydraulique (25-29) qui anime le bloc de serrage (30, 30a) d'un mouvement vertical le long de le surface d'appui (40) de façon que, parmi les multiples et différentes surfaces de serrage (31, 32 ; 31a, 32a) du bloc de serrage (30, 30a) qui sont disposées les unes au-dessus des autres, l'une ou l'autre surface de serrage (31, 32 ; 31a, 32a) parvienne dans le plan de la gorge (17, 33) du gabarit de cintrage (16), caractérise en ce que le cylindre hydraulique (25, 25a) de l'entraînement de cha- quebloc de serrage (30, 30a) est disposé dans le gabarit de cintrage (16) et/ou dans la mâchoire de serrage (19).
2. Machine cintrer des tubes, notamment suivant la revendication 1, caractérisée en ce que, d'une façon connue en soi, la mâchoire de serrage (19) peut tourner autour d'un axe horizontal (34) et possède deux surfaces planes (39, 40) se raccordant l'une à l'autre, de préférence suivant un angle droit et en ce qu'il est prévu, pour l'une de ces deux surfaces (39, 40) ou pour chacune de ces deux surfaces (39, 40), un bloc de serrage (30a) qui présente plusieurs surfaces différentes de serrage (31a, 32a) et qui est monté de façon à pouvoir se déplacer en translation dans la surface (39, 40) associée.
3. Machine à cintrer des tubes suivant les revendications 1 et 2, caractérisée en ce qu'il est prévu trois surfaces différentes de serrage sur le bloc de serrage (30) disposé sur le gabarit de cintrage et deux surfaces différentes de serrage (31 a, 32a) sur lé bloc de serrage (30a) disposé sur la mâchoire de serrage (19).
EP86105500A 1985-05-10 1986-04-21 Machine à cintrer des tubes Expired EP0200979B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3516923 1985-05-10
DE19853516923 DE3516923A1 (de) 1985-05-10 1985-05-10 Rohrbiegemaschine

Publications (3)

Publication Number Publication Date
EP0200979A2 EP0200979A2 (fr) 1986-11-12
EP0200979A3 EP0200979A3 (en) 1987-01-07
EP0200979B1 true EP0200979B1 (fr) 1989-11-15

Family

ID=6270419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105500A Expired EP0200979B1 (fr) 1985-05-10 1986-04-21 Machine à cintrer des tubes

Country Status (3)

Country Link
US (1) US4821549A (fr)
EP (1) EP0200979B1 (fr)
DE (2) DE3516923A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11440069B2 (en) 2013-11-15 2022-09-13 Greenlee Tools, Inc. Bender having a sensor configured to sense a workpiece

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616302A1 (de) * 1986-05-14 1987-11-19 Schwarze Rigobert Rohrbiegemaschine
DE3835173A1 (de) * 1988-10-15 1990-04-19 Pulzer Guenther F Verfahren und vorrichtung zum biegen von stangenfoermigen werkstuecken
DE4442030A1 (de) * 1994-11-25 1996-05-30 Sen Bernhard Kreye Verfahren zum Biegen von Metallprofilen, vorzugsweise Metallprofilen, die als Sprossen für Fenster und Türen verwendet werden, und Planscheibenbiegemaschine zur Durchführung des Verfahrens
DE19530805A1 (de) * 1995-08-22 1997-02-27 Schwarze Rigobert CNC-gesteuerte Rohrbiegemaschine
DE19630163C1 (de) * 1996-07-26 1997-12-11 Schmitz & Brill Gmbh & Co Kg Biegevorrichtung
DE102009038384A1 (de) * 2009-08-24 2011-03-03 Tracto-Technik Gmbh & Co. Kg Vorrichtung zum Biegen länglicher Werkstücke
CN101934314B (zh) * 2010-07-19 2012-04-04 江苏合丰机械制造有限公司 弯管机中能左右弯的弯管装置
CN109175036A (zh) * 2018-08-28 2019-01-11 四川凯润电器有限公司 一种热交换管弯折装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE120336C (fr) *
DE25279C (de) * W. NUSSBECK in Berlin, Neuer Markt 8 Bierkühlapparat
DE1087431B (de) * 1959-05-29 1960-08-18 Hilgers Maschinen Und App Baua Selbsttaetige Ausschiebeeinrichtung fuer eine Rohrbiegemaschine
US3299681A (en) * 1960-03-22 1967-01-24 Baldwin Lima Hamilton Corp Program controlled tube bender
US3147792A (en) * 1961-09-25 1964-09-08 Charles F Hautau Tube and bar bending machinery
DE2626202C2 (de) * 1976-06-11 1992-10-29 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine
US4238398A (en) * 1979-10-31 1980-12-09 The Upjohn Company Antibiotics 7(R)-O-alkylnogalarols
DE3033300A1 (de) * 1980-09-04 1982-04-01 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine
US4495788A (en) * 1982-08-02 1985-01-29 Eaton-Leonard Corporation Multiple curvature bender
EP0120336B2 (fr) * 1983-03-26 1991-10-09 Rigobert Dipl.-Ing. Schwarze Machine à cintrer les tubes
JPS59178131A (ja) * 1983-03-28 1984-10-09 Suzuki Motor Co Ltd 曲げ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11440069B2 (en) 2013-11-15 2022-09-13 Greenlee Tools, Inc. Bender having a sensor configured to sense a workpiece

Also Published As

Publication number Publication date
US4821549A (en) 1989-04-18
DE3516923A1 (de) 1986-11-13
EP0200979A3 (en) 1987-01-07
EP0200979A2 (fr) 1986-11-12
DE3666923D1 (en) 1989-12-21

Similar Documents

Publication Publication Date Title
EP0649688B1 (fr) Machine à cintrer des tubes à deux têtes
EP0245623B1 (fr) Machine à plier des tubes
DE3601231C2 (fr)
EP0108193B1 (fr) Presse à courber des tubes
DE3033300C2 (fr)
DE2626202A1 (de) Rohrbiegemaschine
EP0649687B1 (fr) Machine à cintrer les tubes
DE3227508A1 (de) Vorrichtung fuer einen robotermanipulator
DE8908279U1 (de) Biegeapparat zum Biegen langgestreckter Materialien in jeder Richtung
DE3430964A1 (de) Werkzeugmaschine zur verbindung von rohren und rohrboeden eines waermetauschers
EP0200979B1 (fr) Machine à cintrer des tubes
DE68904694T2 (de) Spannmechanismus eines geraetes zum bohren oder senken von loechern in einem werkstueck.
AT400337B (de) Gleisstopfmaschine mit in gleisquerrichtung verstellbaren stopfeinheiten
DE3627502C2 (de) Rohrbiegemaschine
EP0120336B2 (fr) Machine à cintrer les tubes
DE3045791C2 (fr)
DE69800606T2 (de) Biegevorrichtung
DE3619677C1 (de) Vorrichtung zum Heben und Senken des Kopf- und des Fussteiles eines Bettrahmens
DE3831378C2 (de) Anschlagvorrichtung für Tischsägen
DE3625074C2 (fr)
DE2063041C3 (de) Einrichtung zum Biegen von Stäben u.dgl
DE3033950C2 (de) Rohrbiegemaschine
EP0604747B1 (fr) Machine à plier
DE10229652B4 (de) Schlitten für Rohrbiegemaschine
DE2900672A1 (de) Biegevorrichtung und verfahren zum biegen eines langgestreckten materialstranges

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19870124

17Q First examination report despatched

Effective date: 19880708

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REF Corresponds to:

Ref document number: 3666923

Country of ref document: DE

Date of ref document: 19891221

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: LANG MASCHINENBAU GMBH U. CO. KG

Effective date: 19900816

ITTA It: last paid annual fee
PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19910211

EAL Se: european patent in force in sweden

Ref document number: 86105500.2

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050412

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050419

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20050422

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20050427

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050524

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20060420

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

EUG Se: european patent has lapsed