EP1051268B1 - Rohrbiegevorrichtung und ihre trommeleinrichtung - Google Patents

Rohrbiegevorrichtung und ihre trommeleinrichtung Download PDF

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Publication number
EP1051268B1
EP1051268B1 EP98958951A EP98958951A EP1051268B1 EP 1051268 B1 EP1051268 B1 EP 1051268B1 EP 98958951 A EP98958951 A EP 98958951A EP 98958951 A EP98958951 A EP 98958951A EP 1051268 B1 EP1051268 B1 EP 1051268B1
Authority
EP
European Patent Office
Prior art keywords
bending
jaws
turret
tube
head
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 - Lifetime
Application number
EP98958951A
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English (en)
French (fr)
Other versions
EP1051268A1 (de
Inventor
Jean-Paul Bruyas
Serge Cappello
Jean-Paul Chastan
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.)
Silfax Sarl
Original Assignee
Silfax Sarl
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 Silfax Sarl filed Critical Silfax Sarl
Publication of EP1051268A1 publication Critical patent/EP1051268A1/de
Application granted granted Critical
Publication of EP1051268B1 publication Critical patent/EP1051268B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 present invention relates to a machine for bending tubes according to the preamble of claim 1 (see e.g. EP-A-0 120 336) and to a barrel device according to the preamble of claim 6 for changing the clamping jaws on a bending the tubes and its implementation method.
  • the carriage advances the pipe and the mandrel turn the hose to position it in relation to the tools.
  • the pressure tool can apply the rear part of the pipe against the tool or against another backpressure member or a cam.
  • the clamping and bending tools cooperate to clamp a front part of the pipe, and are simultaneously rotated about an axis substantially vertical. This causes the curvature of the pipe around the bending tool. Then, the tools are retracted, the carriage is advanced, and the mandrel is driven in rotation in order to place the hose properly in position at a time longitudinally and in rotation for the next bend.
  • the entire bending head includes a fixed arm assembly in which is mounted the rotary drive mechanism of the bending tool. On the stationary arm is also mounted the actuation mechanism of the tool pressure.
  • a tilting bending arm assembly is mounted on the assembly fixed arm so as to be integral in rotation with the bending tools around the axis of these and this set carries the clamping tools and their mechanism actuating.
  • the machine is preferably controlled fully automatically in order to to execute a series of bends on a given pipe.
  • the bending tool is formed by a stack of coaxial bending tools having different curvatures.
  • the machine can have either of the tools or bending dies next to the pipe, because the whole bending head is mounted mobile on the front end of the machine frame. Indeed, the head of bending can move in two directions, vertical and horizontal, in two directions which are perpendicular to each other, and both perpendicular to the axis of the machine.
  • the bending machine and its barrel device according to the present invention have for the purpose of bringing to the level of the bending head of the machine jaws of tightening with imprints of different shapes and power select the one corresponding to the outer profile of the tube to be bent by simple rotation of said barrel device about its longitudinal axis.
  • the machine for bending tubes according to the invention comprises all the features of claim 1.
  • the machine for bending tubes according to the invention advantageously comprises a barrel made up a square plate, each peripheral edge of which has a fixing device allowing the sliding of the clamping jaws correspondents.
  • the machine for bending tubes according to the invention advantageously comprises a barrel whose clamping jaws have an imprint of different and complementary shape to the profile of the tube before bending.
  • the tube bending machine advantageously comprises a jaw support having on a vertical edge a groove which cooperates with an element integral with either one of the jaws of the clamping jaw corresponding, either of said jaw support.
  • the machine for bending tubes according to the invention advantageously comprises a bending head which moves in a horizontal direction lying in a plane perpendicular to that containing the longitudinal axis of the fixed frame.
  • the barrel device according to the invention comprises all the features of claim 6.
  • the barrel device according to the invention advantageously comprises a barrel which is constituted a square plate, each peripheral edge of which has a fixing device allowing the sliding of the clamping jaws correspondents.
  • the barrel device according to the invention advantageously comprises clamping jaws with imprints of different shapes and complementary to the profile of the tube before bending.
  • the barrel device advantageously comprises a jaw support comprising on a vertical edge a groove which cooperates with an intermediate element integral either with one of the jaws of the corresponding clamping jaw, or with said jaw support.
  • FIG. 1 shows a bending machine 1 comprising a fixed frame 2 which carries at one of its ends a bending head 3 around which pivots a bending arm 4.
  • the fixed frame 2 comprises along its longitudinal axis a guide rail 5 on which slides a carriage 6 which approaches and moves away from the bending head 3.
  • the carriage 6 comprises a mandrel 7 for receiving and guiding a tube 8 to bend which is moved in translation and in rotation around its axis.
  • a device 9 also slides on the rail 5 to avoid, by means of an olive, the crushing of the tube 8 during its bending.
  • the bending arm 4 comprises a jaw support 10 which moves horizontally in the direction of the bending head 3.
  • the support 10 is integral a vertical plate 11 extending above said support.
  • the vertical plate is designed to carry a barrel device 12.
  • the bending head 3 is integral with a bending roller 13 constituting a device for fixing one of the jaws of a clamping jaw 14 as shown will see better later.
  • the bending roller 13 has a circular profile, one of which part is cut to form a notch 28 in L.
  • the roller 13 comprises a peripheral groove 30 whose bending radius can vary depending on the shaping to be carried out on the tube 8.
  • the bending head 3 includes displacement means, in order to be able to move horizontally relative to the fixed frame 2, i.e. in one direction lying in a plane perpendicular to that containing the longitudinal axis of the machine 1 or of the fixed frame 2, which is generally embodied by the tube 8.
  • the jaw support 10 has on its vertical edge 15, located opposite the bending head 3, a T-shaped groove 16.
  • the groove 16 can be provided according to another profile in order to constitute a vertical slide opening on the side the upper and horizontal edge of the jaw support 10.
  • the vertical plate 11 is integral with beams 17 extending vertically and over which is welded a barrel holder 18.
  • the latter is integral with a rib vertical 19 arranged in a plane parallel to that containing the groove 16 of the jaw support 10 to allow vertical movement of a barrel 20.
  • the barrel 20 consists of a plate 21 with a square profile, each edge of which peripheral includes a fixing device 22 for the installation of a jaw clamp 14.
  • Each fixing device 22 of the barrel 20 comprises at each angle of the plate 21 a jaw 23 and 24 of a clamping jaw 14.
  • each clamping jaw 14 comprise respectively an imprint 14a, 14b of shape complementary to the profile outside of tube 8 before bending.
  • the imprints 14a, 14b have a additional profile which can be either bent, or of different length, or orientation in different space to constitute clamping jaws 14 to different imprints on each peripheral edge of the barrel 20.
  • the jaws 23 and 24 of each clamping jaw 14 are provided to be move along the peripheral edge of the plate 21 towards the tube 8 held on the fixed frame 2 of the machine 1.
  • Each jaw 24 has on the face opposite to that receiving the imprint 14b of the clamping jaw 14, a rib 25 which is designed to cooperate with a intermediate element 29 which is housed in the groove 16 of the jaw support 10 of the bending arm 4 during the vertical movements of the barrel 20.
  • the intermediate element 29 can be positioned beforehand either on the jaw 24, or on the jaw support 10, to allow indexing of said jaw on said jaw support.
  • each clamping jaw 14 has, opposite its footprint 14 has a profile 31 complementary to the notch 28 for its attachment to the bending roller 13.
  • the barrel 20 can move vertically along the barrel holder 18 and in a plane parallel to that containing said barrel holder by means of a motor 26 or any other electrical or hydraulic means.
  • the vertical displacement of the barrel 20 makes it possible to introduce and / or remove the jaws 23 and 24 of the clamping jaw 14 corresponding to the bending roller 13 of the bending head 3 and of the jaw support 10 of the bending arm 4.
  • the barrel 20 can be rotated about its axis longitudinal by means of another motor 27 to arrange, above the roller bending 13 of the bending head 3 and of the jaw support 10 of the bending arm 4, the clamping jaw 14 corresponding to the external profile of the tube 8 before it bending.
  • the barrel device 12 is placed in the high position by the motor 26, so that the barrel 20 is disposed above the bending head 3 and the arm of bending 4 (figure 5).
  • the barrel 20 is then rotated about its longitudinal axis by through the motor 27, to determine the clamping jaw 14 as a function of the imprint 14a, 14b corresponding to the external profile of the tube 8 ( Figure 5).
  • the barrel device 12 is placed in the low position by the motor 26, so that the jaws 23 and 24 of the corresponding clamping jaw 14 are arranged at the same level as the tube 8 ( Figure 6).
  • the descent of the barrel 20 makes it possible to simultaneously index the jaw 23 on the bending roller 13 of the bending head 3 and the jaw 24 on the support jaw 10 of the bending arm 4.
  • the profile 31 of the jaw 23 is positioned in the notch 28 in L, while the intermediate element 29 of the jaw 24 cooperates with the groove 16 of the jaw support 10 ( Figure 6).
  • the bending arm 4 then pivots around the vertical axis of the bending head 3 to return to its original position shown in FIG. 5, in order to be able to select a new clamping jaw 14 and repeat a cycle again bending as previously described.
  • the barrel device 12 can move on the one hand in rotation around its longitudinal axis and on the other hand in directions included in planes perpendicular and / or parallel to that containing the axis longitudinal of the fixed frame 2 which is represented by the axis of the tube to be bent 8.

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

Claims (10)

  1. Rohrbiegemaschine mit einem länglichen festen Rahmen (2), der an einem seiner Enden mit einem Biegekopf (3) und einem um den Kopf schwenkenden Biegearm (4) fest verbunden ist, wobei der Biegearm (4) eine Revolverkopfvorrichtung (12) enthält, die Spannbacken (14) mit unterschiedlichen Prägungen aufweist und zum Formen der Rohre (8) gleichzeitig mit dem Arm um den Biegekopf (3) schwenken kann, wobei die Revolverkopfvorrichtung (12) Verschiebungsmittel enthält, die einerseits die Drehverschiebung der Revolverkopfvorrichtung (12) um ihre eigene Längsachse und andererseits die Verschiebung der Revolverkopfvorrichtung in einer senkrecht und vertikal zum festen Rahmen (2) verlaufenden Richtung gestatten, dadurch gekennzeichnet, daß die Revolverkopfvorrichtung (12) aus einem Revolverkopfhalter (18), der fest mit dem auf dem Biegearm (4) gleitenden Backenträger (10) verbunden ist, und einem Revolverkopf (20), der mittels eines Motors (26) vertikal am Revolverkopfhalter (18) entlang und mittels eines anderen Motors (27) um seine eigene Längsachse drehend bewegt werden kann, besteht, wobei der Revolverkopf (20) an seinem Umfang mindestens zwei Spannbacken (14) aufweist, die jeweils zwei einander gegenüberliegende Klemmbacken (23, 24) umfassen, die mit einer Biegewalze (13) des Biegekopfs (3) bzw. dem Backenträger (10) des Biegearms (4) zusammenwirken.
  2. Biegemaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Revolverkopf (20) aus einer quadratischen Platte (21) besteht, von der jeder Umfangsrand eine Befestigungsvorrichtung (22) aufweist, die die Verschiebung der entsprechenden Spannbacken (14) gestattet.
  3. Biegemaschine nach Anspruch 1, dadurch gekennzeichnet, daß jede Spannbacke (14) eine Prägung (14a, 14b) aufweist, die zu dem Außenprofil des Rohrs (8) vor seiner Biegung komplementär ist.
  4. Biegemaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Backenträger (10) an einem vertikalen Rand (15) eine Nut (16) enthält, die mit einem Zwischenelement (29) zusammenwirkt, das entweder mit einer der Klemmbacken (24) der entsprechenden Spannbacke (14) oder mit dem Backenträger fest verbunden ist.
  5. Biegemaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Biegekopf (3) in einer sich in einer senkrecht zu der die Längsachse des festen Rahmens (2) enthaltenden Ebene verlaufenden Ebene befindenden horizontalen Richtung verschoben werden kann.
  6. Revolverkopfvorrichtung für eine Rohrbiegemaschine, wobei die Maschine einen festen Rahmen (2), der an einem seiner Enden mit einem Biegekopf (3) und einem um den Kopf schwenkenden Biegearm (4) fest verbunden ist, enthält, wobei die Revolverkopfvorrichtung (12) Spannbacken (14) mit verschiedenen Prägungen sowie Verschiebungsmittel enthält, die einerseits die Drehverschiebung der Revolverkopfvorrichtung (12) um ihre eigene Längsachse und andererseits die Verschiebung der Revolverkopfvorrichtung in einer senkrecht und vertikal zum festen Rahmen (2) verlaufenden Richtung gestatten, dadurch gekennzeichnet, daß sie einen mit einem Backenträger (10), der so ausgeführt ist, daß er auf dem Biegearm (4) gleiten kann, fest verbundenen Revolverkopfhalter (18) und einen Revolverkopf (20), der einerseits mittels eines Motors (26) in Vertikalrichtung translatorisch am Revolverkopfhalter (18) verschoben und andererseits mittels eines anderen Motors (27) um seine eigene Längsachse drehend bewegt werden kann, aufweist, wobei der Revolverkopf (20) an seinem Umfang mindestens zwei Spannbacken (14) aufweist, die jeweils zwei einander gegenüberliegende Klemmbacken (23, 24) umfassen, die so ausgeführt sind, daß sie mit einer Biegewalze (13) des Biegekopfs (3) bzw. dem Backenträger (10) des Biegearms (1) zusammenwirken.
  7. Revolverkopfvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Revolverkopf (20) aus einer quadratischen Platte (21) besteht, von der jeder Umfangsrand eine Befestigungsvorrichtung (22) aufweist, die die Verschiebung der entsprechenden Spannbacken (14) gestattet.
  8. Revolverkopfvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß jede Spannbacke (14) eine Prägung (14a, 14b) aufweist, die zu dem Außenprofil des Rohrs (8) vor seiner Biegung komplementär ist.
  9. Revolverkopfvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Backenträger (10) an einem vertikalen Rand (15) eine Nut (16) enthält, die mit einem Zwischenelement (29) zusammenwirkt, das entweder mit einer der Klemmbacken (24) der entsprechenden Spannbacke (14) oder mit dem Backenträger fest verbunden ist.
  10. Verfahren zum Laden einer Spannbacke (14) zum Einsatz einer Rohrbiegemaschine mit einem länglichen festen Rahmen (2), der an einem seiner Enden mit einem Biegekopf (3) und einem um den Kopf schwenkenden Biegearm (4) fest verbunden ist, nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß man dabei:
    die Revolverkopfvorrichtung (12) mittels des Motors (26) in oberer Stellung am Revolverkopfhalter (18) positioniert;
    den Revolverkopf (20) mittels des Motors (27) um seine Längsachse schwenkt, um die Spannbacke (14) in Abhängigkeit von der dem Außenprofil des Rohrs (8) vor seiner Biegung entsprechenden Prägung auszuwählen;
    die Revolverkopfvorrichtung (20) abwärts bewegt, damit die Klemmbacken (23, 24) der entsprechenden Spannbacke (14) gleichzeitig an der Biegewalze (13) des Biegekopfs (3) bzw. dem Backenträger (10) des Biegearms (4) einrasten;
    den Biegekopf (3) und den Backenträger (10) horizontal in Richtung des Rohrs (8) verschiebt, um die Klemmbacken (23, 24) der entsprechenden Spannbacke (14) gegen das Rohr zu führen;
    das Rohr (8) biegt, indem man den Biegearm (4) und die Revolverkopfvorrichtung (20) um den Biegekopf (3) und die Biegewalze (13) schwenkt.
EP98958951A 1998-01-30 1998-12-03 Rohrbiegevorrichtung und ihre trommeleinrichtung Expired - Lifetime EP1051268B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9801315A FR2774317B1 (fr) 1998-01-30 1998-01-30 Machine a cintrer les tubes et son dispositif a barillet
FR9801315 1998-01-30
PCT/FR1998/002606 WO1999038626A1 (fr) 1998-01-30 1998-12-03 Machine a cintrer les tubes et son dispositif a barillet

Publications (2)

Publication Number Publication Date
EP1051268A1 EP1051268A1 (de) 2000-11-15
EP1051268B1 true EP1051268B1 (de) 2002-05-22

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ID=9522606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98958951A Expired - Lifetime EP1051268B1 (de) 1998-01-30 1998-12-03 Rohrbiegevorrichtung und ihre trommeleinrichtung

Country Status (6)

Country Link
US (1) US6345525B1 (de)
EP (1) EP1051268B1 (de)
CA (1) CA2318385C (de)
DE (1) DE69805550T2 (de)
FR (1) FR2774317B1 (de)
WO (1) WO1999038626A1 (de)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE10130937C1 (de) * 2001-06-27 2003-01-30 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Ermittlung der Raumgeometrie eines gebogenen Strangprofils
ES2271154T3 (es) 2002-07-13 2007-04-16 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Dispositivo de doblado con herramienta de doblado y accionamiento de doblado.
ES2303540T3 (es) * 2002-07-13 2008-08-16 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Maquina de doblar tubos con herramienta de doblar y dispositivo de retroceso de mandril.
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
FR3001163B1 (fr) 2013-01-21 2015-05-01 Eaton Leonard Europ Dispositif de cintrage de profiles tels que des tubes
FR3007301B1 (fr) * 2013-06-25 2015-06-05 Financ Jaubert Machine a cintrer un profile
ITUA20161931A1 (it) * 2016-03-23 2017-09-23 Crippa Spa Dispositivo per la curvatura di un materiale filiforme
CN109483935B (zh) * 2018-12-21 2023-12-05 东山欧凯金属塑料制品有限公司 物料缩径机
CN109604395A (zh) * 2019-01-30 2019-04-12 杭州显庆科技有限公司 一种工件折弯机构及其方法和弯管设备
CN110000256B (zh) * 2019-04-15 2024-04-26 广东捷泰克智能装备有限公司 多用途弯管机
IT201900006821A1 (it) * 2019-05-14 2020-11-14 Star Tech S R L Macchina per la curvatura di elementi allungati quali barre, tubi e simili e metodo di funzionamento di tale macchina

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE25279C (de) * W. NUSSBECK in Berlin, Neuer Markt 8 Bierkühlapparat
US3431759A (en) * 1966-02-02 1969-03-11 Walker Mfg Co Forming apparatus
DE2626202C2 (de) * 1976-06-11 1992-10-29 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine
US4495788A (en) 1982-08-02 1985-01-29 Eaton-Leonard Corporation Multiple curvature bender
EP0120336B2 (de) * 1983-03-26 1991-10-09 Rigobert Dipl.-Ing. Schwarze Rohrbiegemaschine
GB2187666B (en) * 1986-03-15 1989-12-20 Pressbend Ltd Pipe bending apparatus
DE3616302A1 (de) * 1986-05-14 1987-11-19 Schwarze Rigobert Rohrbiegemaschine
DE19530805A1 (de) 1995-08-22 1997-02-27 Schwarze Rigobert CNC-gesteuerte Rohrbiegemaschine

Also Published As

Publication number Publication date
FR2774317B1 (fr) 2000-04-07
CA2318385C (fr) 2006-05-23
US6345525B1 (en) 2002-02-12
WO1999038626A1 (fr) 1999-08-05
DE69805550D1 (de) 2002-06-27
DE69805550T2 (de) 2003-01-09
FR2774317A1 (fr) 1999-08-06
EP1051268A1 (de) 2000-11-15
CA2318385A1 (fr) 1999-08-05

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