EP1380362B1 - Machine de cintrage de tubes avec alimentation de tubes et recul de mandrin - Google Patents

Machine de cintrage de tubes avec alimentation de tubes et recul de mandrin Download PDF

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Publication number
EP1380362B1
EP1380362B1 EP02015760A EP02015760A EP1380362B1 EP 1380362 B1 EP1380362 B1 EP 1380362B1 EP 02015760 A EP02015760 A EP 02015760A EP 02015760 A EP02015760 A EP 02015760A EP 1380362 B1 EP1380362 B1 EP 1380362B1
Authority
EP
European Patent Office
Prior art keywords
pipe
disposed
holder
machine base
mandrel
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
EP02015760A
Other languages
German (de)
English (en)
Other versions
EP1380362A1 (fr
Inventor
Frank Schmauder
Winfried Dr. Richter
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
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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Application filed by Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Priority to ES02015760T priority Critical patent/ES2303540T3/es
Priority to DE50211964T priority patent/DE50211964D1/de
Priority to EP02015760A priority patent/EP1380362B1/fr
Priority to US10/618,245 priority patent/US7082798B2/en
Publication of EP1380362A1 publication Critical patent/EP1380362A1/fr
Application granted granted Critical
Publication of EP1380362B1 publication Critical patent/EP1380362B1/fr
Anticipated expiration legal-status Critical
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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
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/05—Bending tubes using mandrels or the like co-operating with forming members
    • B21D9/07—Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only

Definitions

  • the invention relates to a pipe bending machine with a bending tool, with a pipe feed, by means of which a tube to be bent in the tube longitudinal direction relative to the bending tool and has a tube holder, which is guided in the tube longitudinal direction provided on a machine body longitudinal guide means and by means of a pipe feed drive with a machine base body side Drive device is movable and with a Dornschreibzug, by means of which a bending rod extending in a tube longitudinal direction mandrel bar bending tool side mounted bending mandrel in the tube longitudinal direction between a use and a retracted position can be moved back and forth, wherein the mandrel retraction has a mandrel bar holder, which is guided in the tube longitudinal direction of the machine base body side longitudinal guide means and by means of a mandrel rod drive with a machine base body side drive means.
  • Such a pipe bending machine is from the US-B1-6,345,525 known.
  • a bending mandrel in the interior of the pipe to be machined taking its position of use near the bending tool ensures that the Rohrguer bain is not deformed during processing in an undesirable manner.
  • the mandrel is from its use in one Retracted position and thereby removed from the bending tool.
  • Attached is the bending mandrel at the bending tool side end of a rod extending in the tube longitudinal direction. This passes through the feed carriage of the pipe feed and is fixed to the side facing away from the bending tool in a receiving device.
  • the receiving device and the mandrel held therein by means of an attached to the machine frame piston-cylinder arrangement in the tube longitudinal direction are moved.
  • the present invention has set itself the goal.
  • this object is achieved by the pipe bending machine according to claim 1 or 2. Accordingly, provided is a common machine-body-side longitudinal guide means or a common machine base body-side drive means for mandrel rod holder and pipe holder. As a result of the double use of said guide or said drive means is the design effort for Movement of mandrel holder and pipe holder low.
  • the conditions on the pipe bending machine according to the invention are also structurally simple insofar as guide and / or drive systems of similar construction can be used for mandrel rod holders and pipe holders.
  • the mandrel rod holder can be moved in the tube longitudinal direction over a large distance. This circumstance allows in particular a flexible vote of the Dorn Wegzugs also on changing within wide limits lengths to be machined pipes.
  • the pipe length to be processed determines the position which the pipe holder of the pipe feed takes at the beginning of processing on the machine base in the tube longitudinal direction.
  • the position of the mandrel rod holder is determined in the tube longitudinal direction. Even with large changes in tube length, the mandrel rod holder can follow the tube holder moved to different initial positions on tube bending machines according to the invention.
  • the claims 4 to 7 relate to invention types, which are characterized by a particularly convenient design of the longitudinal guide and / or drive systems of mandrel holder and pipe holder.
  • the characterizing feature of claim 8 is provided in the interests of the greatest possible automation of Dorn Wegzug and pipe feed pipe bending machines according to the invention.
  • a pipe bending machine 1 comprises a machine base 2, which is provided at a longitudinal end with a bending tool 3.
  • the bending tool 3 is a conventional rotary bending tool that can be used for right / left bending and for Mehrrotebiegen. Instead of the rotary bending tool shown, other types of bending tools are conceivable.
  • a bending template 4 and a clamping jaw 5 of the bending tool 3 clamp the front, already bent end of a tube 6.
  • a slide 7 of the bending tool 3 is used in the usual way for the radial support of the tube 6 in the region of the transition of the undeformed in the bent pipe section.
  • the tube 6 shown with circular cross section and hollow profiles with deviating from the circular cross-sectional shape can be edited on the pipe bending machine 1 with a corresponding choice of the bending tool 3.
  • the remote from the bending tool 3 end of the tube 6 is fixed in a tube holder 8 in the form of a conventional chuck.
  • the pipe holder 8 is part of a pipe feed 9 and as such attached to a carriage 10 of the pipe feed 9.
  • a flanged to the carriage 10 electric motor 11 is used to drive the carriage 10 and the tube holder 8 with the clamped pipe 6 in the tube longitudinal direction 12.
  • the electric motor 11 drives a gear 13 via a drive pinion 14, which in turn with a machine base body side Drive device 15 serving rack meshes.
  • the tube holder 8 or the tube 6 is guided during the movement in the tube longitudinal direction 12 by means of a machine-body-side longitudinal guide device 16, which comprises two guide rails 17.
  • On the carriage 10 mounted counter-guides 18 cooperate with the guide rails 17.
  • a Dorn Wegzug 19 is designed. This comprises a mandrel 20 which projects through the carriage 10 and the tube holder 8 of the pipe feed 9 into the interior of the tube 6 and is provided at its end lying to the bending tool 3 end with a bending mandrel 21.
  • the mandrel 21 takes his usual in the FIGS. 1 to 3 shown use position near the bending tool 3 and prevents in this way an undesirable cross-sectional deformation of the tube 6 in the region of the created pipe bend.
  • Shortly before completion of the bending operation of the mandrel 21 is withdrawn by appropriate movement of the mandrel 20 in the tube longitudinal direction 12 from its position of use.
  • the required longitudinal movement of the mandrel bar 20 is carried out by means of an electric motor 22 which is flanged to a carriage 23 of the mandrel retraction 19.
  • the carriage 23 is provided with a mandrel bar holder 24, by means of the end remote from the bending tool 3 end of the mandrel bar 20 is releasably fixed.
  • the electric motor 22 drives a drive gear 26 via a gear 25.
  • the drive pinion 26 of the mandrel retraction 19 meshes with the rack or machine base body-side drive means 15.
  • the pipe feed 9 and the mandrel bar retraction 19 are CNC controlled.
  • the cars 10, 23 can be moved decoupled from each other.
  • rack drives shown other drive types, in particular other drives with a machine base-side drive rod and / or with drive wheels on the carriages 10, 23, are conceivable.
  • the still undeformed tube 6 is pushed in the initial state located in the open bending state 3 in the tube longitudinal direction 12 on the mandrel 20 and clamped with its rear end to the tube holder 8.
  • the mandrel 21 may already be in its position of use at this time.
  • the tube 6 is moved by moving the carriage 10 in the tube longitudinal direction 12 in the desired position. Subsequently, the bending tool 3 is closed and the tube 6 clamped between the bending template 4 and the clamping jaw 5. By subsequent rotation or pivoting movement of the bending template 4 and the jaw 5 is in the FIGS. 1 and 2 recognizable pipe bend created. Shortly before completion of the bending process, the mandrel 21 is transferred to a retracted position. In the FIGS. 1 to 3 the operating state is shown immediately before the onset of this withdrawal movement of the mandrel 21. To carry out the return movement of the bending mandrel 21, the carriage 23 of the mandrel retraction 19 is moved with the mandrel bar 20 held thereon correspondingly in the tube longitudinal direction 12.
  • the bending tool 3 is first to be transferred to its opened initial state, and subsequently the tube 6 to be re-positioned by means of the pipe feed 9 in the tube longitudinal direction relative to the bending tool 3.
  • the carriage 10 and the tube holder 8 then take the in Fig. 3 illustrated position.
  • the bending mandrel 21 is to be converted by appropriate method of the carriage 23 with the mandrel rod holder 24 and the mandrel 20 to the bending tool 3 back to its position of use ( Fig. 3 ).
  • the bending tool 3 can be closed and the tube 6, as in Fig. 3 represented, edited.
  • a short tube 6a are processed, as shown in the FIGS. 4 and 5 is shown, is at the pipe bending machine 1 instead of the long mandrel 20 ( FIGS. 1 to 3 ) a short mandrel bar 20a ( FIGS. 4 . 5 ) used.
  • the long mandrel 20 on the mandrel bar holder 24 is to be replaced with the short mandrel 20a.
  • the carriage 10 with the tube holder 8 is located in the processing of the tube 6a near the bending tool side end of the machine body 2.
  • the carriage 23 with the mandrel rod 20a fixed thereto follows the carriage 10 of the tube feed 9 in a bending tool near position.

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

Claims (9)

  1. Machine à cintrer des tubes comprenant :
    - un outil de cintrage (3),
    - une alimentation de tube (9) au moyen de laquelle un tube à cintrer (6, 6a) peut être positionné dans la direction longitudinale (12) du tube par rapport à l'outil de cintrage (3), et qui présente un dispositif de maintien de tube (8) guidé dans la direction longitudinale (12) du tube sur un dispositif de guidage longitudinal (16) prévu sur un bâti de machine (2) et mû, au moyen d'un entraînement d'alimentation de tube comprenant un dispositif d'entraînement (15) situé côté bâti de machine,
    - un dispositif de retrait du mandrin (19) qui permet de faire aller et venir dans la direction longitudinale (12) du tube, entre une position d'utilisation et une position de retrait, un mandrin de cintrage (21) fixé côté outil de cintrage sur une tige porte-mandrin (20, 20a) s'étendant dans la direction longitudinale (12) du tube, le dispositif de retrait du mandrin (19) présentant un support de tige porte-mandrin (24) prévu sur un chariot (23), qui est guidé dans la direction longitudinale (12) du tube sur le dispositif de guidage longitudinal (16) situé côté bâti de machine, et est mû, au moyen d'un entraînement de tige porte-mandrin comprenant un dispositif d'entraînement (15) situé côté bâti de machine,
    caractérisée en ce que, pour déplacer le support de tige porte-mandrin (24) dans la direction longitudinale (12) du tube, le chariot (23) peut être entraîné avec le support de tige porte-mandrin (24), dans la direction longitudinale (12) du tube, au moyen d'un moteur (22) prévu sur ledit chariot (23), et mû sur le dispositif d'entraînement (15) situé côté bâti de machine, et en ce que le dispositif de guidage longitudinal (16) situé côté bâti de machine pour le support de tige porte-mandrin (24) est formé par un dispositif de guidage longitudinal (16) situé côté bâti de machine pour le chariot (23) entraîné par moteur, qui est simultanément prévu en tant que dispositif de guidage longitudinal (16) situé côté bâti de machine pour le dispositif de maintien de tube (8).
  2. Machine à cintrer des tubes comprenant :
    - un outil de cintrage (3),
    - une alimentation de tube (9) au moyen de laquelle un tube à cintrer (6, 6a) peut être positionné dans la direction longitudinale (12) du tube par rapport à l'outil de cintrage (3), et qui présente un dispositif de maintien de tube (8) guidé dans la direction longitudinale (12) du tube sur un dispositif de guidage longitudinal (16) prévu sur un bâti de machine (2) et mû, au moyen d'un entraînement d'alimentation de tube comprenant un dispositif d'entraînement (15) situé côté bâti de machine,
    - un dispositif de retrait du mandrin (19) qui permet de faire aller et venir dans la direction longitudinale (12) du tube, entre une position d'utilisation et une position de retrait, un mandrin de cintrage (21) fixé côté outil de cintrage sur une tige porte-mandrin (20, 20a) s'étendant dans la direction longitudinale (12) du tube, le dispositif de retrait du mandrin (19) présentant un support de tige porte-mandrin (24) prévu sur un chariot (23), qui est guidé dans la direction longitudinale (12) du tube sur le dispositif de guidage longitudinal (16) situé côté bâti de machine, et est mû, au moyen d'un entraînement de tige porte-mandrin comprenant un dispositif d'entraînement (15) situé côté bâti de machine,
    caractérisée en ce que, pour déplacer le support de tige porte-mandrin (24) dans la direction longitudinale (12) du tube, le chariot (23) peut être entraîné avec le support de tige porte-mandrin (24) dans la direction longitudinale (12) du tube, au moyen d'un moteur (22) prévu sur ledit chariot (23), et mû sur le dispositif d'entraînement (15) situé côté bâti de machine, qui est simultanément prévu en tant que un dispositif d'entraînement (15) situé sur côté bâti de machine pour le dispositif de maintien de tube (8).
  3. Machine à cintrer des tubes selon la revendication 2, caractérisée en ce que le dispositif de guidage longitudinal (16) situé côté bâti de machine pour le support de tige porte-mandrin (24) est formé par un dispositif de guidage longitudinal (16) situé côté bâti de machine pour le chariot (23) entraîné par moteur, qui est simultanément prévu en tant que dispositif de guidage longitudinal (16) situé côté bâti de machine pour le dispositif de maintien de tube (8).
  4. Machine à cintrer des tubes selon l'une des revendications précédentes, caractérisée en ce que le dispositif de guidage longitudinal (16) situé côté bâti de machine qui est commun au support de la tige porte-mandrin (24) et au dispositif de maintien de tube (8) comporte au moins un rail de guidage (17).
  5. Machine à cintrer des tubes selon l'une des revendications précédentes, caractérisée en ce que l'entraînement de tige porte-mandrin et l'entraînement d'alimentation de tube sont réalisés en tant qu'entraînements à crémaillère, et en ce que le dispositif d'entraînement (15) situé côté bâti de machine, qui est commun au support de tige porte-mandrin (24) et au dispositif de maintien de tube (8), présente au moins une crémaillère avec laquelle engrènent au moins un pignon (26) situé côté support de tige porte-mandrin et au moins un pignon (14) situé côté dispositif de maintien de tube.
  6. Machine à cintrer des tubes selon l'une des revendications précédentes, caractérisée en ce que le support de tige porte-mandrin (24) et le dispositif de maintien de tube (8) sont chacun prévus sur un chariot (23, 10) guidé sur le dispositif de guidage longitudinal (16) commun situé côté bâti de machine et/ou entraîné sur le dispositif d'entraînement (15) commun situé côté bâti de machine.
  7. Machine à cintrer des tubes selon l'une des revendications précédentes, caractérisée en ce que le support de tige porte-mandrin (24) et/ou le dispositif de maintien de tube (8) peut (peuvent) être entraîné(s) sur le dispositif d'entraînement (15) commun situé côté bâti de machine, respectivement au moyen d'un entraînement de tige porte-mandrin et d'un entraînement d'alimentation de tube, respectivement comprenant au moins un moteur électrique (22) situé côté support de tige porte-mandrin et comprenant au moins un moteur électrique (11) situé côté dispositif de maintien de tube.
  8. Machine à cintrer des tubes selon l'une des revendications précédentes, caractérisée en ce que le support de tige porte-mandrin (24) et le dispositif de maintien de tube (8) peuvent être entraînés sur le dispositif d'entraînement (15) commun situé côté bâti de machine, au moyen d'un entraînement de tige porte-mandrin à commande numérique et d'un entraînement d'alimentation de tube à commande numérique.
  9. Machine à cintrer des tubes selon l'une des revendications précédentes, caractérisée en ce que la tige porte-mandrin (20, 20a) peut être retirée du support de tige porte-mandrin (24) pour être remplacée.
EP02015760A 2002-07-13 2002-07-13 Machine de cintrage de tubes avec alimentation de tubes et recul de mandrin Expired - Lifetime EP1380362B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES02015760T ES2303540T3 (es) 2002-07-13 2002-07-13 Maquina de doblar tubos con herramienta de doblar y dispositivo de retroceso de mandril.
DE50211964T DE50211964D1 (de) 2002-07-13 2002-07-13 Rohrbiegemaschine mit Rohrvorschub und Dornrückzug
EP02015760A EP1380362B1 (fr) 2002-07-13 2002-07-13 Machine de cintrage de tubes avec alimentation de tubes et recul de mandrin
US10/618,245 US7082798B2 (en) 2002-07-13 2003-07-11 Pipe bending machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02015760A EP1380362B1 (fr) 2002-07-13 2002-07-13 Machine de cintrage de tubes avec alimentation de tubes et recul de mandrin

Publications (2)

Publication Number Publication Date
EP1380362A1 EP1380362A1 (fr) 2004-01-14
EP1380362B1 true EP1380362B1 (fr) 2008-03-26

Family

ID=29724449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015760A Expired - Lifetime EP1380362B1 (fr) 2002-07-13 2002-07-13 Machine de cintrage de tubes avec alimentation de tubes et recul de mandrin

Country Status (4)

Country Link
US (1) US7082798B2 (fr)
EP (1) EP1380362B1 (fr)
DE (1) DE50211964D1 (fr)
ES (1) ES2303540T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE443597T1 (de) 2007-06-29 2009-10-15 Wafios Ag Linearführung
ITRM20070483A1 (it) * 2007-09-17 2009-03-18 Cml Int Spa Macchina curvatubi con anima avente una struttura portante particolarmente resistente alle sollecitazioni di loavorazione
DE102010013688B4 (de) * 2010-04-01 2013-09-26 Wafios Ag Biegevorrichtung für längliche Werkstücke
CN103464550B (zh) * 2012-06-06 2016-05-25 浙江摩多巴克斯科技股份有限公司 一种弯管机的管件推送装置
USD755861S1 (en) * 2014-08-15 2016-05-10 Trumpf Gmbh + Co. Kg Bending machine
JP1539124S (fr) * 2014-08-15 2015-11-30
CN108941286A (zh) * 2017-05-18 2018-12-07 张家港市伯勤机械厂 一种自动弯管机
CN109622691A (zh) * 2018-12-07 2019-04-16 江苏现代造船技术有限公司 一种超长管弯管机
IT202200012752A1 (it) * 2022-06-16 2023-12-16 Simat S R L Macchina e procedimento per la produzione di prodotti tubolari piegati
CN117564144B (zh) * 2024-01-16 2024-04-05 山东朝日不锈钢有限公司 一种弯管机用芯棒拉杆支撑装置及其方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567429B1 (fr) * 1984-07-10 1992-03-27 Picot Sa Machine pour le cintrage de tubes, barres ou profiles
EP0227779A1 (fr) 1985-06-28 1987-07-08 Integrated Production Machines Limited Machine de cintrage de tuyaux
CH683598A5 (de) * 1990-03-13 1994-04-15 Mewag Maschinenfabrik Ag Rohrbiegemaschine.
US5481891A (en) 1993-12-20 1996-01-09 Eagle Precision Technologies Inc. Tube bending apparatus and method
FR2774317B1 (fr) * 1998-01-30 2000-04-07 Silfax Machine a cintrer les tubes et son dispositif a barillet
US6155091A (en) * 1999-02-26 2000-12-05 Arvin Industries, Inc. Mandrel assembly for tube-bending apparatus

Also Published As

Publication number Publication date
EP1380362A1 (fr) 2004-01-14
US20050016239A1 (en) 2005-01-27
US7082798B2 (en) 2006-08-01
DE50211964D1 (de) 2008-05-08
ES2303540T3 (es) 2008-08-16

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