EP0649688A1 - Machine à cintrer des tubes à deux têtes - Google Patents

Machine à cintrer des tubes à deux têtes Download PDF

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Publication number
EP0649688A1
EP0649688A1 EP94114929A EP94114929A EP0649688A1 EP 0649688 A1 EP0649688 A1 EP 0649688A1 EP 94114929 A EP94114929 A EP 94114929A EP 94114929 A EP94114929 A EP 94114929A EP 0649688 A1 EP0649688 A1 EP 0649688A1
Authority
EP
European Patent Office
Prior art keywords
bending
pipe
double
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.)
Granted
Application number
EP94114929A
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German (de)
English (en)
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EP0649688B1 (fr
Inventor
Rigobert Dipl.-Ing. Schwarze
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Individual
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Individual
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6500663&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0649688(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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Publication of EP0649688A1 publication Critical patent/EP0649688A1/fr
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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
    • 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 double-head pipe bending machine, namely a pipe bending machine with two bending heads attached to a machine frame, according to the preamble of patent claim 1.
  • the usual pipe bending machines have a bending head on a machine frame with a rotatable bending template and a clamping jaw that presses the pipe against the bending template and is attached to a swivel arm. By swiveling the swivel arm and simultaneously rotating the bending template, the pipe section to be bent is drawn around the bending template.
  • Double-head pipe bending machines are also known, which have two bending heads.
  • the pipe to be bent is placed on the bending templates of both bending heads and the swivel arms with the associated clamping jaws pivoted simultaneously to bend the outer pipe sections.
  • double-head tube bending machines only straight tubes can be bent, but not tubes that are already pre-bent.
  • the invention has for its object to provide a double-head pipe bending machine, which is able to perform complex bending processes without retrofitting on the same machine.
  • two bending heads protrude from the machine frame in the same direction. This direction is called the longitudinal direction.
  • a pipe to be bent which is clamped in a pipe holding device, is fed to one of the bending heads in order to be bent thereby.
  • the tube is released from the first bending head and the tube holding device is moved with the cross slide in the transverse direction in order to attach the pre-bent tube to the second bending head, which follows Bends.
  • the fact that a single pipe holding device operates both bending heads means that the pipe is only clamped once for a complex bending process.
  • the pipe If the pipe is processed by the second bending head, it can already be released from the pipe holding device because the slide rail provided on the second bending head holds the pipe in place and maintains its original orientation.
  • the tube holding device can therefore be moved into a take-over position during the second bending process, in which it receives the next tube.
  • a particular advantage is that the pipe bending machine according to the invention can also be used for mandrel bending, with a mandrel being pushed into the inside of the pipe, which reinforces the pipe section which is not to be bent. Wrinkle smoothers can also be used on the bending heads.
  • the bending heads can be moved on the machine frame, for example in the longitudinal direction and / or in the transverse direction and / or in the vertical direction.
  • All movements that are carried out by components of the pipe bending machine are expediently controlled by an electronic control unit, so that no manual intervention is required for the pipe processing.
  • the pipe processing takes place via both bending processes fully automatically from clamping the unbent pipe to releasing the finished pipe.
  • the double-head pipe bending machine has a machine frame 10 as a machine bed, which carries all components.
  • Two bending heads 11 and 12 protrude from an end wall of the machine frame 10.
  • Each of these heads has a support part 13 which carries on its upper side a rotatable bending template 14 which has at least one bending groove on its circumference, into which half of the circumference of the pipe to be bent is inserted.
  • a pivot arm 15 is also provided on the head 13, which can be pivoted about the vertical axis of rotation of the bending template 14 and carries a clamping jaw 16 which presses the tube 17 against the circumference of the bending template 14.
  • the clamping jaw 16 also has a groove which engages around part of the tube circumference. The clamping jaw 16 is pressed against the bending template 14 by a pressing device 18.
  • the unbent pipe section is supported by a slide rail 19 which protrudes from the support part 13 Support arm 20 is provided and can be pressed laterally against the tube by a pressing device 21.
  • Each bending head 11, 12 can be moved in height along a vertical guide 22 on the machine frame 10.
  • a spindle 23 is used to drive this vertical movement.
  • the bending heads can also be movable in the longitudinal direction, their distance from the machine frame 10 changing.
  • the bending heads 11, 12 can also be moved in the transverse direction, that is to say parallel to the side of the machine frame to which they are attached.
  • Fig. 1 the two bending heads 11, 12 are shown in the respective pipe receiving position, the pivot arms 15 being directed towards one another.
  • the bending heads are therefore mirror images of one another.
  • the bending templates 14 can be easily replaced, as can the clamping jaws 16.
  • the pipe holding device 25 is provided on a cross slide 26 on the machine frame 10.
  • the cross slide 26 consists of a cross slide 27, which can be moved in the transverse direction of the machine frame 10 along guide rails 28, and a longitudinal slide 29, which is movable on the cross slide along guide rails 30.
  • the cross slide 27 or the longitudinal slide 29 can preferably also be moved in height.
  • the longitudinal slide 29 carries the pipe holding device 25, in which the unbent pipe 17 is clamped and which is rotatable about the longitudinal axis of the pipe.
  • the longitudinal direction is the axial direction of the pipe holding device 25 and the transverse direction is the direction perpendicular to this.
  • a mandrel retraction cylinder 31 On the cross slide 26, a mandrel retraction cylinder 31 is provided which carries a mandrel 32 which passes through the tube holding device 25 and supports the part of the tube which is not to be bent from the inside.
  • the longitudinal slide 29 is moved into the rear end position. Then the pipe is clamped in the pipe holder 25.
  • the tube 17 is laterally applied to the bending template 14 of the bending head 12 by moving the longitudinal slide 29 and the transverse slide 27, while the clamping jaw 26 and the slide rail 19 are in the retracted position. Then the clamping jaw 16 and the slide rail 19 are pushed towards the tube 17, so that the tube is clamped between the bending template 14 and the clamping jaw 16. Then the pivot arm 15 and the bending template 14 are pivoted around the bending angle, so that the tube 17 is bent. Since the pipe is drawn here, the longitudinal slide 19 is advanced in the longitudinal direction.
  • the jaw 16 and the slide rail 19 are removed from the tube and both bending heads 11 and 12 are lowered.
  • the cross slide 26 is moved in the transverse direction in order to position the pre-bent tube on the bending head 11.
  • the longitudinal slide 29 is advanced to bring the pipe section now to be bent into the bending position.
  • the bending head 11 is raised and the tube is clamped between the bending template 14 and clamping jaw 16 of the bending head 11.
  • the bending process is then carried out on the bending head 11 by simultaneously turning the bending template 14 and pivoting the swivel arm 15.
  • the slide rail 19 of the bending head 11 holds the tube firmly, so that the tube can already be released by the tube holding device 25 and the cross slide 26 moves back into the starting position in order to receive a new unbent tube.
  • Fig. 2 shows a bent tube that can be manufactured with the double-head tube bending machine according to Fig. 1.
  • This tube has several bends in different spatial levels, the individual tube bends having different radii of curvature.
  • the spatial plane in which the bend takes place is set by rotating the pipe holding device 25 about its longitudinal axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP94114929A 1993-10-21 1994-09-22 Machine à cintrer des tubes à deux têtes Expired - Lifetime EP0649688B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4335901A DE4335901A1 (de) 1993-10-21 1993-10-21 Doppelkopf-Rohrbiegemaschine
DE4335901 1993-10-21

Publications (2)

Publication Number Publication Date
EP0649688A1 true EP0649688A1 (fr) 1995-04-26
EP0649688B1 EP0649688B1 (fr) 1998-02-25

Family

ID=6500663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114929A Expired - Lifetime EP0649688B1 (fr) 1993-10-21 1994-09-22 Machine à cintrer des tubes à deux têtes

Country Status (4)

Country Link
US (1) US5499522A (fr)
EP (1) EP0649688B1 (fr)
AT (1) ATE163374T1 (fr)
DE (2) DE4335901A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0990471A1 (fr) * 1998-09-30 2000-04-05 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Machine à plier
WO2000021697A1 (fr) * 1998-10-14 2000-04-20 Rosenberger Automationstechnik Gmbh Procede permettant de couder des tuyaux
EP1036606A1 (fr) * 1999-03-17 2000-09-20 Rasi Maschinenbau Und -Handels Gmbh Machine de cintrage, notament avec un mandrin
EP1219363A2 (fr) * 2000-12-25 2002-07-03 NHK Spring Co., Ltd. Dispositif de cintrage pour matériau allongé
EP2177287A3 (fr) * 2008-10-17 2011-05-11 WAFIOS Aktiengesellschaft Agencement de joues de support destiné au support latéral de coulissement de pièces usinées en forme de tiges ou de tubes sur des cintreuses
CN109277443A (zh) * 2018-11-28 2019-01-29 安徽德系重工科技有限公司 一种三维曲率弯管机及其使用方法

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0182069B1 (ko) * 1995-06-22 1999-04-01 송병준 컷팅블레이드의 절곡시스템
US6260395B1 (en) * 1996-03-05 2001-07-17 Adaptive Motion Control Systems, Inc. Vertically oriented apparatus for bending tubing, and method of using same
JP3716949B2 (ja) * 1996-05-17 2005-11-16 臼井国際産業株式会社 多連式パイプ曲げ加工装置
US6038903A (en) * 1998-03-09 2000-03-21 Eaton Leonard, Inc. Dual headed bending machine
ATE246560T1 (de) * 2001-01-30 2003-08-15 Blm Spa Maschine zum biegen von strangförmigem material, wie rohren, stangen, profilen oder metalldraht
DE10130937C1 (de) 2001-06-27 2003-01-30 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Ermittlung der Raumgeometrie eines gebogenen Strangprofils
FR2833868B1 (fr) * 2001-12-20 2004-03-05 Silfax Machine a cintrer les tubes et son dispositif de cintrage a gauche et/ou a droite
FR2841162B1 (fr) * 2002-06-25 2005-01-14 Silfax Support de reglette pour machine a cintrer les tubes
US7021102B2 (en) * 2003-03-15 2006-04-04 Trumpf Rohrtechnik Gmbh + Co. Kg Bending machine with bending tools on opposite sides of a tool platen
GR1005871B (el) * 2006-05-04 2008-04-15 Μεθοδος και μηχανισμος παραγωγης τρισδιαστατων τσερκιων.
US7254972B1 (en) * 2006-06-28 2007-08-14 Chia Sheng Machinery Co., Ltd. Moving mold mechanism of a pipe bending machine
ATE528082T1 (de) * 2009-01-16 2011-10-15 Wafios Ag Rotationszugbiegewerkzeug mit exzenterklemmung
CN103658266B (zh) * 2012-09-24 2016-11-23 珠海格力电器股份有限公司 数控弯管机
WO2015073808A2 (fr) 2013-11-15 2015-05-21 Greenlee Textron Inc. Machine à plier automatisée, et systèmes et procédés d'envoi de données pour faire fonctionner une machine à plier automatisée
CN104765320A (zh) * 2015-02-05 2015-07-08 珠海格力电器股份有限公司 自动弯管机及其控制方法和装置
CN105234224A (zh) * 2015-11-20 2016-01-13 苏州沃尔非自动化设备有限公司 具有加热功能的铜管折弯机
CN105312374A (zh) * 2015-11-20 2016-02-10 苏州沃尔非自动化设备有限公司 一种可调节的铜管折弯机
CN105312373A (zh) * 2015-11-20 2016-02-10 苏州沃尔非自动化设备有限公司 一种自动旋转的铜管折弯机
CN105268789A (zh) * 2015-11-20 2016-01-27 苏州沃尔非自动化设备有限公司 一种铜管折弯机
CN105290172A (zh) * 2015-11-20 2016-02-03 苏州沃尔非自动化设备有限公司 一种自动上料的铜管折弯机
CN105344761A (zh) * 2015-11-20 2016-02-24 苏州沃尔非自动化设备有限公司 一种保护好的铜管折弯机
CN105234220A (zh) * 2015-11-20 2016-01-13 苏州沃尔非自动化设备有限公司 具有存储功能的铜管折弯机
CN105344883B (zh) * 2015-11-27 2018-04-13 镇江晨光焊接设备制造有限公司 Led芯柱导丝长脚拨四十五度机构
CN105344876B (zh) * 2015-11-27 2018-06-26 镇江晨光焊接设备制造有限公司 Led芯柱导丝短脚自动拨四十五度装置
CN105396919A (zh) * 2015-12-03 2016-03-16 苏州广硕精密电子有限公司 适用于多种规格管道的折弯设备
CN108246849A (zh) * 2018-02-05 2018-07-06 广州捷晟自动化控制设备有限公司 一种弯管机
CN109201805B (zh) * 2018-10-22 2024-04-16 南京信息职业技术学院 一种电子产品生产用零部件折弯设备及其使用方法
CN111659779B (zh) * 2020-06-04 2022-10-21 上海诺玛液压系统有限公司 射流管伺服阀薄壁小管弯管工装
CN113600708B (zh) * 2021-07-30 2023-06-13 广东欧科空调制冷有限公司 空调热交器毛细管的折弯工装及其折弯方法
CN114472632B (zh) * 2022-02-17 2024-02-20 新昌县长城空调部件股份有限公司 弧形输气管的加工方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488896A (en) * 1946-06-14 1949-11-22 Charles J Bertolini Dual pivoted bender for simultaneously bending two parallel lengths of metal tubing
US4843859A (en) * 1987-07-14 1989-07-04 Chiyoda Kogyo Co., Ltd. Pipe bender

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4313324A (en) * 1979-04-25 1982-02-02 Eaton-Leonard Corporation Reversible bending machine
US4485658A (en) * 1983-05-31 1984-12-04 Stewart A K Carriage assembly for a tube bending machine
JPS60255722A (ja) * 1984-05-30 1985-12-17 Otsuka Pharmaceut Factory Inc 糖尿病用アミノ酸輸液
US4804077A (en) * 1987-05-29 1989-02-14 Westinghouse Electric Corp. Tube end processing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488896A (en) * 1946-06-14 1949-11-22 Charles J Bertolini Dual pivoted bender for simultaneously bending two parallel lengths of metal tubing
US4843859A (en) * 1987-07-14 1989-07-04 Chiyoda Kogyo Co., Ltd. Pipe bender

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0990471A1 (fr) * 1998-09-30 2000-04-05 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Machine à plier
WO2000021697A1 (fr) * 1998-10-14 2000-04-20 Rosenberger Automationstechnik Gmbh Procede permettant de couder des tuyaux
EP1036606A1 (fr) * 1999-03-17 2000-09-20 Rasi Maschinenbau Und -Handels Gmbh Machine de cintrage, notament avec un mandrin
EP1219363A2 (fr) * 2000-12-25 2002-07-03 NHK Spring Co., Ltd. Dispositif de cintrage pour matériau allongé
EP1219363A3 (fr) * 2000-12-25 2003-11-19 NHK Spring Co., Ltd. Dispositif de cintrage pour matériau allongé
US6711927B2 (en) 2000-12-25 2004-03-30 Nhk Springs Co., Ltd. Bending apparatus for a long material
EP2177287A3 (fr) * 2008-10-17 2011-05-11 WAFIOS Aktiengesellschaft Agencement de joues de support destiné au support latéral de coulissement de pièces usinées en forme de tiges ou de tubes sur des cintreuses
US8359896B2 (en) 2008-10-17 2013-01-29 Wafios Aktiengesellschaft Support jaw arrangement for sliding lateral support of rod-shaped and tubular workpieces in bending machines
CN109277443A (zh) * 2018-11-28 2019-01-29 安徽德系重工科技有限公司 一种三维曲率弯管机及其使用方法

Also Published As

Publication number Publication date
ATE163374T1 (de) 1998-03-15
EP0649688B1 (fr) 1998-02-25
DE4335901A1 (de) 1995-04-27
DE59405297D1 (de) 1998-04-02
US5499522A (en) 1996-03-19

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