EP2289643A2 - Dispositif pour le pliage de longues pièces usinées - Google Patents

Dispositif pour le pliage de longues pièces usinées Download PDF

Info

Publication number: EP2289643A2
Authority: EP; European Patent Office
Prior art keywords: bending; tool carrier; rotation; tool; axis
Prior art date: 2009-08-24
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

EP10008714A

Other languages

German (de)

English (en)

Other versions

EP2289643B1 (fr

EP2289643A3 (fr

Inventor

Dirk BÖRGER

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.)

Tracto Technik GmbH and Co KG

Original Assignee

Tracto Technik GmbH 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.)

2009-08-24

Filing date

2010-08-20

Publication date

2011-03-02

2010-08-20 Application filed by Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG

2011-03-02 Publication of EP2289643A2 publication Critical patent/EP2289643A2/fr

2011-10-05 Publication of EP2289643A3 publication Critical patent/EP2289643A3/fr

2013-11-06 Application granted granted Critical

2013-11-06 Publication of EP2289643B1 publication Critical patent/EP2289643B1/fr

Status Not-in-force legal-status Critical Current

2030-08-20 Anticipated expiration legal-status Critical

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

Definitions

the invention relates to a device for bending elongate workpieces, such as pipes, extruded profiles or metal wire.
Tube bending machines are known for different applications.
different bending methods can be used.
press bending the bending tool is pressed manually or hydraulically against two counter rollers. This movement forces the workpiece positioned between the bending tool and the counter-roller (s) to bend about the bending tool. Since the pipes can not be supported from the inside, this method is usually suitable only for thick-walled pipes and large bending radii.
Three-roll bending is used to make workpieces with large bending radii. The process is similar to press bending, but the work rolls rotate as well as the two stationary counter rolls and thereby form the bend radius.
compression bending the tube is clamped between a sliding carriage and a stationary bending roller.
the workpiece is in this case fixed between a stationary bending roller and a clamping arm arranged on a pivoting arm and converted by pivoting the pivoting arm including the clamping piece about the axis of rotation of the bending roller.
tube bending it is increasingly important to develop tube bending machines that allow bending successive sections of the tube to be deformed in different ways. For example, it may be provided that a first pipe section with a first bending radius and a first rotation angle is to be bent, while a subsequent pipe section with a second bending radius is to be bent by a second rotation angle. Furthermore, it may be necessary that a first pipe section "to the right” and the subsequent pipe section "to the left” to be bent. One way to do this is to rotate the tube itself by 180 ° relative to the bending tool after a first bending operation, so that it is bent in the opposite direction in a subsequent bending operation. As a result, however, space problems can arise because considerable space must be created on both sides of the tube bending machine, in which the already bent part of the tube can extend.
a tube bending machine which makes it possible to bend a tube with different bending radii and to the right and to the left, without in this case the tube would have to be rotated by 180 ° relative to the bending tool.
This pipe bending machine comprises a base frame, on which the unbent portion of a pipe to be bent is fixed. The fixation is such that the tube can be advanced by means of a carriage and rotated by a rotating device about a defined angle about the longitudinal axis of the unbent portion of the tube.
the pipe bending machine further comprises a tool carrier with a plurality of bending tools.
the tool carrier is connected to the base carrier via a carrier slide, the base carrier allowing a horizontal displacement of the tool carrier relative to the tube to be bent and consequently perpendicular to the longitudinal axis of the unbent portion of the tube.
the tool carrier itself is rotatably connected about an axis which is aligned parallel to the longitudinal axis of the unbent portion of the tube, with the support carriage, wherein rotation takes place, if necessary, by means of an electric motor.
the bending tools comprise two bending roller units each having two bending rollers of different diameters, wherein the two bending roller units are fixed on opposite sides with respect to the axis of rotation of the tool carrier on a common axis.
a major disadvantage with the in the EP 1 226 887 B1 disclosed pipe bending machine is that two separate drives must be provided; one with which the carrier carriage can be moved horizontally linear and another, which can cause the rotation of the tool carrier about the axis of rotation.
the present invention seeks to provide an improved device for bending elongated workpieces, in particular with respect to the EP 1 226 887 B1 known pipe bending machine is structurally less expensive.
the essence of the invention is to use the drive, which is provided for a relative displacement of the tool carrier to the base support, to cause - at least temporarily - at the same time a rotational movement of the tool carrier about an axis of rotation.
a device for bending elongate workpieces accordingly has a base support, a tool carrier displaceable relative to the base support along at least one axis with at least two bending tools, wherein one of the bending tools can be brought about a rotation axis into engagement with the workpiece to be bent by rotation of the tool support , and a rotary drive for rotating the tool carrier about the axis of rotation, wherein the rotary drive comprises a gear which translates the relative displacement of the tool carrier to the base carrier in a rotational movement of the tool carrier about the axis of rotation.
linear drive a unit that causes a controlled translation of the tool carrier relative to the base support.
the translation may preferably be rectilinear here, but this is not absolutely necessary.
a linear drive preferably comprises a linear guide, which connects the tool carrier and the base support with each other in such a way that movement is possible only in the opposite directions defined by the linear guide, and corresponding drive means for carrying out the movement.
the transmission is designed such that it has a drive wheel which is connected - directly or indirectly - with a shaft of the tool carrier defining the axis of rotation.
the rotational movement of the tool carrier can then be generated by the fact that the drive wheel rolls on a corresponding contact surface during a displacement of the tool carrier by the linear drive.
the desired, coupled with the linear motion rotational movement of the tool carrier can be achieved by means of a structurally very simple design gear.
the drive wheel may be formed as a gear wheel, which rolls on a rack.
a particularly accurate coupling of the rotational movement of the tool carrier to the relative movement of the tool carrier can be effected.
a second linear guide over which the tool carrier is displaceable relative to the base support to provide wherein the second linear drive is not aligned parallel to the first linear drive.
the second linear drive in conjunction with the first linear drive allows any (two-dimensional) displaceability of the tool carrier in a plane relative to the base support. This not only allows easy positioning of the respective bending tools on the pipe to be bent, but also the arrangement of several bending rollers of different diameters on one side with respect to the axis of rotation of the tool carrier, wherein the positioning of the respective bending roller for contact with the bending tool only due to Displacement of the tool carrier can be done based on the linear drives.
a coupling function can be generated, wherein in a first, within the displacement of the second linear drive position, the drive wheel rolls on the contact surface, whereby according to the invention the displacement of the tool carrier means of the linear drive to a simultaneous rotation of the tool carrier leads around the axis of rotation, and in at least one second position, the drive wheel no longer rolls on the contact surface, whereby the coupling of the rotation of the tool carrier to the translation of the first linear drive is canceled.
the linear guides of the first and the second linear drive can be aligned perpendicular to each other, so that a defined range of motion can be achieved with the shortest possible displacement of the linear drives.
the linear guides of the first and the second linear drive define a displacement plane of the tool carrier, which is aligned perpendicular to the longitudinal axis of the held on the base support (unbent) portion of the workpiece to be bent. This simplifies the exact positioning of the bending tools on the section of the workpiece to be bent.
the same purpose is served by the further preferably provided alignment of the axis of rotation of the tool carrier parallel to the longitudinal axis of the held on the base portion of the workpiece.
the bending device shown in the figures comprises a base support 1, which is shown schematically in the figures in the form of a cuboid.
a drive unit 2 is provided, in which a tube 3 to be bent is fixed.
the drive unit 2 comprises an electric motor (not shown) with which the tube 3 to be bent can be rotated about the longitudinal axis of the unbent portion of the tube.
the drive unit also comprises a linear drive (not shown), which makes it possible to move it, including the tube 3 to be bent in the direction of the longitudinal axis of the non-bent portion of the tube 3 relative to the base support 1.
a tool carrier 4 of the bending device comprises a main body 5, a vertically oriented bending tool axis 6 and a pivot arm 7, which can be pivoted relative to the main body 5 about the bending tool axis 6.
a bending roller unit 8 of a bending tool is arranged, each having three sections of different diameters, which serve as a bending template and define the bending radius of the respective bending operation.
Each of the bending tools further comprises a clamping jaw 9, which is arranged displaceably on the pivot arm 7 and in a position in which it rests against the respective bending roller unit 8, the tube located therebetween 3 clamped with a defined clamping force.
the tool carrier 4 is fixed via a displacement unit 10 on a side surface of the base support 1.
the displacement unit 10 comprises two linear drives 11a, 11b, each consisting of a carriage 12a, 12b, two linear guides 13a, 13b and a drive, not shown (eg hydraulic or pneumatic cylinder, electric motor spindle drive, rack and pinion linear drive, etc.).
the two parallel rail systems comprehensive linear guides 13a, 13b of the linear actuators 11a, 11b are aligned at an angle of 90 ° to each other, wherein the linear guide 13a of the first linear actuator 11a horizontally and the linear guide 13b of the second linear actuator 11b is vertically aligned.
the tool carrier 4 including the associated bending tools in a plane which is aligned perpendicular to the longitudinal axis of the unbent portion of the tube 3, are continuously displaced.
the displacement of the tool carrier 4 relative to the base support 1 or to the fixed to the base support 1 tube 3 is allowed to position the bending tool located in the operating position so that the section to be bent of the tube 3 in the desired bending radius corresponding Bending template of the respective bending roller unit 8 is located.
the Fig. 1 shows how the section of the tube 3 to be bent between the bending radius of the smallest bending radius forming the located in the operating position bending roller unit 8 and the clamping jaw 9 of this bending tool is fixed.
the Fig. 3 to 6 show the process of rotating the tool carrier 4 about its axis of rotation.
the rotation of the tool carrier 4 is achieved about the axis of rotation by means of a transmission comprising a gear 14 which rolls on a connected to the base support 1 rack 15.
the gearwheel 14 is non-rotatably connected to the main body 5 of the tool carrier 4 via a hollow shaft 16, wherein the hollow shaft 16 extends through a slot in the carriage 12b of the second linear drive 11b and rotatable in a bearing 17 connected to the carriage 12a of the first linear drive 11a is stored.
the hollow shaft 16 thus defines the axis of rotation of the tool carrier 4.
the second bending tool now in the operating position must still be positioned so that the section of the tube 3 to be bent is positioned in the bending template of the bending roller unit 8 provided for the following bending operation.
the tool carrier 4 is initially moved by means of the second linear drive 11b a small amount upwards, whereby it is achieved that the gear 14 no longer meshes with the rack 15.
a subsequent displacement of the tool carrier 4 in the horizontal direction to the right by means of the first linear drive 11a consequently no longer leads to a rotation of the tool carrier 4.
Fig. 6 shows the achievement of this second operating position already in the Fig. 2 is presented from a different perspective.

Landscapes

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

EP20100008714 2009-08-24 2010-08-20 Dispositif pour le pliage de longues pièces usinées Not-in-force EP2289643B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102009038384A DE102009038384A1 (de)	2009-08-24	2009-08-24	Vorrichtung zum Biegen länglicher Werkstücke

Publications (3)

Publication Number	Publication Date
EP2289643A2 true EP2289643A2 (fr)	2011-03-02
EP2289643A3 EP2289643A3 (fr)	2011-10-05
EP2289643B1 EP2289643B1 (fr)	2013-11-06

Family

ID=43127401

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20100008714 Not-in-force EP2289643B1 (fr)	2009-08-24	2010-08-20	Dispositif pour le pliage de longues pièces usinées

Country Status (2)

Country	Link
EP (1)	EP2289643B1 (fr)
DE (1)	DE102009038384A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103394607A (zh) *	2013-06-28	2013-11-20	雄华机械(苏州)有限公司	一种弯管成型检测一体机
EP2756892A1 (fr) *	2013-01-21	2014-07-23	WAFIOS Aktiengesellschaft	Dispositif de pliage pour pièces usinées en forme de tige
CN106623538A (zh) *	2016-12-28	2017-05-10	武汉思瑞法机器人制造有限公司	一种用于弯管机的弯管装置
CN106623548A (zh) *	2016-12-30	2017-05-10	武汉思瑞法机器人制造有限公司	一种用于弯管机的左右快速换向弯管装置
GB2559232A (en) *	2016-11-25	2018-08-01	Crippa Spa	Machine for bending a thread-like material such as a pipe by way of a system for simultaneously loading a pipe to be bent and unloading a bent pipe
CN110947807A (zh) *	2019-12-19	2020-04-03	马鞍山市兴隆铸造有限公司	一种方便使用的弯管加工装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102012004984B4 (de)	2012-03-14	2015-11-12	HAAS Holzzerkleinerungs- und Fördertechnik GmbH	Vorrichtung zum Zerkleinern von Stückgut
CN104607508A (zh) *	2014-12-05	2015-05-13	芜湖恒美电热器具有限公司	一种空调加热管弯管机
DE102016116159B4 (de)	2016-08-30	2018-08-09	Dengler Tubetec Gmbh	Verfahren und Vorrichtung zum Biegen von strangförmigen Werkstücken

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1226887B1 (fr)	2001-01-30	2003-08-06	BLM S.p.A.	Machine pour le cintrage d'objets allongés, notamment tuyaux, barres, profilés ou fils metalliques

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DE3516923A1 (de) *	1985-05-10	1986-11-13	Rigobert Dipl.-Ing. 5000 Köln Schwarze	Rohrbiegemaschine
US4843859A (en) *	1987-07-14	1989-07-04	Chiyoda Kogyo Co., Ltd.	Pipe bender
CH683598A5 (de) *	1990-03-13	1994-04-15	Mewag Maschinenfabrik Ag	Rohrbiegemaschine.
IT1290141B1 (it) *	1997-03-21	1998-10-19	Blm Spa	Macchina per curvare materiale filiforme come tubi barre o profilati
EP1405680B1 (fr) *	2002-10-02	2006-01-25	Trumpf Rohrtechnik GmbH + Co. KG	Machine à cintrer avec une tête à cintrer rotative

2009
- 2009-08-24 DE DE102009038384A patent/DE102009038384A1/de not_active Withdrawn
2010
- 2010-08-20 EP EP20100008714 patent/EP2289643B1/fr not_active Not-in-force

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1226887B1 (fr)	2001-01-30	2003-08-06	BLM S.p.A.	Machine pour le cintrage d'objets allongés, notamment tuyaux, barres, profilés ou fils metalliques

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2756892A1 (fr) *	2013-01-21	2014-07-23	WAFIOS Aktiengesellschaft	Dispositif de pliage pour pièces usinées en forme de tige
CN103394607A (zh) *	2013-06-28	2013-11-20	雄华机械(苏州)有限公司	一种弯管成型检测一体机
CN103394607B (zh) *	2013-06-28	2015-06-10	雄华机械(苏州)有限公司	一种弯管成型检测一体机
GB2559232A (en) *	2016-11-25	2018-08-01	Crippa Spa	Machine for bending a thread-like material such as a pipe by way of a system for simultaneously loading a pipe to be bent and unloading a bent pipe
GB2559232B (en) *	2016-11-25	2020-11-18	Crippa Spa	Machine for bending a thread-like material such as a pipe by way of a system for simultaneously loading a pipe to be bent and unloading a bent pipe
CN106623538A (zh) *	2016-12-28	2017-05-10	武汉思瑞法机器人制造有限公司	一种用于弯管机的弯管装置
CN106623548A (zh) *	2016-12-30	2017-05-10	武汉思瑞法机器人制造有限公司	一种用于弯管机的左右快速换向弯管装置
CN106623548B (zh) *	2016-12-30	2018-11-30	武汉思瑞法机器人制造有限公司	一种用于弯管机的左右快速换向弯管装置
CN110947807A (zh) *	2019-12-19	2020-04-03	马鞍山市兴隆铸造有限公司	一种方便使用的弯管加工装置

Also Published As

Publication number	Publication date
EP2289643B1 (fr)	2013-11-06
DE102009038384A1 (de)	2011-03-03
EP2289643A3 (fr)	2011-10-05

Publication	Publication Date	Title
EP2289643B1 (fr)	2013-11-06	Dispositif pour le pliage de longues pièces usinées
EP1863604B1 (fr)	2009-08-19	Dispositif de formage libre de profiles allonges, en particulier de tubes, et dispositif combine de formage libre et d'etirage de profiles allonges, en particulier de tubes
DE4010445C2 (de)	1998-11-19	Rohrbiegemaschine
DE102004060766C5 (de)	2015-04-16	Biegevorrichtung für Rohre
EP2208549A1 (fr)	2010-07-21	Outil de cintrage rotatif à traction avec bridage excentrique
DE69700915T2 (de)	2000-07-20	Maschine zum biegen oder wölben von profilen und biegekopf für solche maschine
DE102018000344B3 (de)	2019-05-23	Biegemaschine, Biegeeinheit, elektronische Steuereinrichtung und Verfahren zum Biegen eines Werkstücks aus Flachmaterial
EP3645188B1 (fr)	2021-09-29	Procédé de fabrication d'une pièce pliée et machine de pliage pour la mise en oeuvre du procédé
DE2537382A1 (de)	1977-03-03	Vorrichtung zum biegen von rohren
EP0546319A1 (fr)	1993-06-16	Procédé de pliage par étirage de profils creux et machine de pliage par étirage à mandrin
DE102016116159B4 (de)	2018-08-09	Verfahren und Vorrichtung zum Biegen von strangförmigen Werkstücken
DE4103134C2 (de)	2000-12-07	Einrichtung zum Herstellen von gebogenen Abschnitten an einem Rohr, insbesondere zur Herstellung einer Rohrschlange
DE102009024406B4 (de)	2013-04-04	Rotationsbiegewerkzeug mit Exzenterklemmung
DE10214275A1 (de)	2003-10-16	Biegemaschine für Profile und Rundrohre
DE69800606T2 (de)	2001-09-27	Biegevorrichtung
EP1914021B1 (fr)	2009-07-01	Machine de cintrage de barres et/ou de pièces en forme de tige, en particulier de tubes et outil pour cette machine
EP2308611B1 (fr)	2015-05-20	Dispositif pour le cintrage d'éléments allongés
DE3316917C2 (fr)	1992-06-04
EP2301687A1 (fr)	2011-03-30	Procédé et dispositif de pliage de matériaux tubulaires ou en forme de tiges
DE202020002598U1 (de)	2020-07-06	Biegemaschine zum Biegen eines Werkstücks aus Flachmaterial und Steuereinheit für eine solche Biegemaschine
DE102016101908B4 (de)	2017-11-02	Vorrichtung und Verfahren zum Biegen von Rohren
DE10229652B4 (de)	2008-02-14	Schlitten für Rohrbiegemaschine
EP1048374A2 (fr)	2000-11-02	Dispositif d'enroulement de ressorts, en particulier pour machines d'enroulement de ressorts
DE202013104199U1 (de)	2014-01-13	Vorrichtung zum Biegen von Rohren
DE102007061186A1 (de)	2009-06-18	Biegevorrichtung, insbesondere für rohrförmige Bauteile

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