EP2258494A1 - Dispositif de pliage pour pièces usinées en forme de tige - Google Patents

Dispositif de pliage pour pièces usinées en forme de tige Download PDF

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Publication number
EP2258494A1
EP2258494A1 EP10002709A EP10002709A EP2258494A1 EP 2258494 A1 EP2258494 A1 EP 2258494A1 EP 10002709 A EP10002709 A EP 10002709A EP 10002709 A EP10002709 A EP 10002709A EP 2258494 A1 EP2258494 A1 EP 2258494A1
Authority
EP
European Patent Office
Prior art keywords
bending
workpiece
feed
bending head
cutting
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
EP10002709A
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German (de)
English (en)
Other versions
EP2258494B1 (fr
Inventor
Gustav Veit
Frank Weiblen
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.)
Wafios AG
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Wafios AG
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 Wafios AG filed Critical Wafios AG
Publication of EP2258494A1 publication Critical patent/EP2258494A1/fr
Application granted granted Critical
Publication of EP2258494B1 publication Critical patent/EP2258494B1/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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • 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
    • B21D7/12—Bending rods, profiles, or tubes with programme control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/006—Bending wire other than coiling; Straightening wire in 3D with means to rotate the tools about the wire axis

Definitions

  • the invention relates to a bending device for rod-shaped workpieces, comprising a machine frame, on which a bending head movable relative to it is mounted with a bending mandrel, further comprising a feed device upstream of the bending head for feeding the workpieces thereto, and with a along the longitudinal center axis of the Workpieces movable, between bending head and feed device on the respective workpiece for performing a cut attachable cutting device.
  • a bending machine is known in which the bending head upstream of a feed device and two cutting devices are provided, one of which is attached to the frame of the feed device and can be moved with this in the direction of the longitudinal axis of the workpiece to be treated. Between the feed device and the bending head, a further, but stationary cutting device is attached, which, however, represents a significant interference contour when bending, if a long leg is to be bent by more than 90 °.
  • the arrangement of the FR 2602160 A1 comprises a feed device and a movable along the longitudinal center axis of the workpiece cutting device for producing cut-to-length workpieces for the bending machine.
  • the bending machine itself consists of a gripping unit and a movable bending head (or two movable bending heads).
  • this known bending system has a very large footprint.
  • turns the bending head (bending heads) rotate around the workpiece and significantly restrict (limit) the available bending clearance.
  • remains in the construction described there between cutting and bending head always a relatively long straight tail, which is also often undesirable.
  • the DE 601 03 632 T2 ( EP 1 272 293 B1 ) describes a bending machine with a movable along the longitudinal central axis of the workpieces bending nose, on whose side facing away from the bending head, a cutting device is attached, which can be moved with her.
  • a movable along the longitudinal central axis of the workpieces bending nose on whose side facing away from the bending head, a cutting device is attached, which can be moved with her.
  • a bending device of the type mentioned is from the DE 690 03 116 T2 ( EP 0 379 030 B1 ), in which both the feed device, as well as the bending unit can be raised and lowered.
  • This known bending machine remains between the interface and bending head a relatively long straight end of the workpiece, which also always between the feed unit and the bending head is always a very large distance, which can lead to difficulties especially when working very thin wires.
  • the invention aims at a bending device of the type mentioned in such a way that in her bends greater than 90 ° and long leg of the workpiece can be performed, for a sufficiently large bending space is available and which also allows bends, where only a relatively small, straight tail of the workpiece remains between interface and bending head and also the distance between the feed unit and bending head can be chosen to be particularly small.
  • this is achieved in a bending machine of the type mentioned in that in addition to the cutting device and the feed device in the feed direction of the workpiece, regardless of the cutting device, can be moved.
  • the bending machine can thereby, that not only the cutting device, but also the upstream feeding device in the feed direction of the workpiece (and therefore also against the same) can be moved by driving the cutting unit and the feed unit of the bending head in a predetermined, of this maximum remote position can be spent, so that between the cutter and the bending head a lot of space to turn a long Leg of a bending part (workpiece) is available.
  • inventively provided movability of the feed device can be achieved that the cutting device can be moved away from the bending head particularly far away.
  • the cutter very close to next move the bending head, without simultaneously a method of the feed device, such as from a remote from the bending head position would be required. If, in particular when processing thin wires, even the shortest possible distance between feed device and bending head is to be ensured in order to avoid undesired deformations in this area, then, even with the cutting device moved up to the bending head, the feed device can also be arranged in one moved very close to the bending head zoomed position.
  • a particularly preferred embodiment of the bending device according to the invention is that the cutting device and the feed device are each movable on its own guideway, wherein the guideways are parallel to each other.
  • each guide track has two parallel guide rails, so that the storage and movability both in the cutting device, as well as in the feed device in each case on two parallel rails can take place, which contributes to a particularly low-vibration and stable overall construction.
  • the two guideways preferably consist of three parallel guide rails, each guide track consisting of the middle of these guide rails and one of the other two guide rails.
  • the two guideways can be realized with two parallel guide rails with a particularly low cost, the middle guide rail serves as a one-sided guide support for both the cutting device, as well as for the feed device.
  • a rack is preferably mounted directly adjacent to the middle guide bar, which is in each case with a mounted on the underside of the cutting device and on the underside of the feed device for carrying out the movement of both devices drive pinion engaged.
  • the pinion of each of the two devices is driven by a motor which is arranged on the relevant device, with this movable.
  • a particularly preferred embodiment of the invention consists in the fact that the cutting device has a base plate, of which a support arm, which holds a movable cutting blade and a fixed counter blade for performing a cut, so protrudes into the feed axis of the respective conveyed workpiece, that from the Feed device coming workpiece between two knives runs. Since the two knives are mounted here on a protruding support arm, this creates the opportunity to protrude only this support arm with the knives in the feed axis of the workpiece and otherwise run out of the feed axis of the workpiece so that at a distance from the Feeding axis of the workpiece, the motor for driving the knives and the carriage and the motor for moving the cutting device may be attached. This allows a very close approach of the feed device to the bending head in its frontmost position, so that between it and the bending head only the width of the support arm is interposed with the two knives, which also results in particularly short straight end pieces of the workpiece after the cut.
  • the fixed counter knife is fixed to the support arm and the cutting blade, seen in the feed direction of the workpiece, mounted directly adjacent to the counter knife on a lever pivotally mounted on the arm pivoting about a parallel to the feed direction of the workpiece pivot axis for performing the cut is.
  • the bending head is mounted on the front end side of the machine frame, wherein he, also preferably, on transverse to the workpiece longitudinal direction on the front end side of the machine frame mounted arcuate guides is movable such that while the bending head is pivoted about the workpiece center axis .
  • arcuate guides is movable such that while the bending head is pivoted about the workpiece center axis .
  • a further advantageous embodiment of the invention further consists in that the feed device upstream is associated with a movable together with it straightening device (the term “upstream” or “downstream” is always used here in the sense of a reference to the transport direction of the supplied workpiece).
  • the feed device comprises a plurality of feed roller pairs, which are fastened to a pivotable about the workpiece longitudinal axis bogie, wherein, preferably, the straightening unit is pivotally mounted together with the bogie of the feed device to the workpiece center axis.
  • the bending head is mounted in addition to its pivotability on the sheet guides in two mutually perpendicular directions and each perpendicular to the workpiece center axis movable.
  • Fig. 1 and 2 show in a perspective view obliquely from above a bending machine 1, which comprises a machine frame 2, a mounted on the front side 3 of the same bending head 4 and a mounted on the top 5 of the machine frame 2 cutting device 6 and a feed and straightening device 7.
  • the bending head 4 is mounted on the front side 3 of the frame 2, arcuately curved guide rails (sheet guides) 8, which are arranged and designed so that their center of curvature sits in the central axis 9 of the delivered workpiece.
  • sheet guides arcuately curved guide rails
  • the bending head 4 is usually pre-positioned in a certain orientation and no longer pivoted during ongoing production. Nevertheless, there is the possibility of pivoting the bending head in direction e during the manufacturing process.
  • the front and middle guide rails 14 facing the viewer in the illustrations of the figures together form a guide track on which the housing 16 of the feed and straightening unit 7 is mounted in a removable manner ( Fig. 1 and 2 ).
  • the feed device 17 which is also called “roll infeed”
  • several adjacently mounted feed roller pairs 18 and two mutually offset by 90 ° straightening devices 19 attached are attached.
  • the first drive 28 is used to move the feed and straightening unit 7 on the guide rails 14 in the feed direction c
  • the second drive allows the rotation of a bogie of the feed device 17, on the the feed roller pairs 18 are fixed (and thus also a rotation of the clamped between the feed roller pairs 18 workpiece) about the central axis 9 of the workpiece
  • the third drive actuates the feed rollers 18 so that they move the workpiece in the direction of its longitudinal or central axis 9.
  • the holder 20 of the straightening devices 19 is attached to the bogie of the feed device 17 and is rotatable with this about the central axis 9 of the workpiece.
  • the first drive 28 is connected via a pinion with the attached to the machine housing 2 rack 15 into engagement, whereby, depending on which direction the first drive 28 acts, a corresponding method of the feed and straightening unit 7 in the direction c can take place.
  • the middle and the rear guide rail 14 together form a second guide track, on which, likewise in the direction c, a base plate 21 of the cutting device 10 is movably seated. From this base plate 21 projects from a solid support arm 22 with an inserted, fixed counter blade 23 in the central axis 9 (longitudinal axis) of the workpiece. On the support arm 22, a lever 24 with a cutting blade 25 inserted on it is rotatably mounted about a pivot axis 26 (movement d ), wherein the pivot axis 26 is parallel to the central axis 9 of the workpiece (see. Fig. 3 ).
  • the first drive is via a (not shown) crank and slide guide with the pivotable lever 24 into engagement.
  • the lever 24 is pivoted relative to the support arm 22 and thereby separates the running between the counter blade 23 and the cutting blade 25 workpiece.
  • Fig. 1 now shows the bending machine 1, in which the cutter 6 is moved fairly far in the direction of the bending head 4, but is still not quite in its forward traversing position, while the feed and straightening unit 7 at a relatively long distance from the bending head 4th located.
  • the cutting device 6 is moved to its maximum forward position, in which the cutting blade 25 and the counter blade 23 are located immediately in front of the bending head 4, and also the feed and straightening unit 7 are in their foremost, ie the bending head 4 most approximate position method in which the housing 16 of the feed device 17 is very close to the base plate 21 of the cutter 6, as shown in the plan view Fig. 4 (with the same position) shows.
  • Fig. 5 shows a plan view of the bending machine 1 in a position in which the cutting device 6 is again in its forwardmost travel position, but the feed device is in a position remote from the bending head 4 position.
  • the orientation of the bending head 4 is as they are in Fig. 2 is shown.
  • Fig. 5 In the presentation of Fig. 5 is the feed and straightening unit 7 by a certain distance to the rear, ie away from the bending head, process, the cutting device 6 is, however, just in its foremost cutting position to perform the cut.
  • the orientation of the bending head 4 is carried out differently relative to the machine frame 2: While in Fig. 2 the bending head 4 is pivoted so that the bending axis 10 is exactly vertical, in contrast, the position of the bending head 4 in Fig. 1 by the process of the same laterally pivoted along the arcuately curved guide rails 8 something.
  • the orientation of the bending head 4 takes place, depending on the part to be manufactured, quite different: A tilted bending head 4, as in principle in Fig. 1 shown, allows dropping the workpiece to be machined after bending; in a vertical bending head 4, as in Fig. 2 is shown, the bending part can be removed from the bending table with grippers.
  • the rotational movement of the feed and straightening unit 7 around the central axis 9 of the workpiece around is not absolutely necessary; Just as well, the bending head 4 could be pivoted about the workpiece or it could also be produced only two-dimensional bending parts.
  • straightening with straighteners 19 also z.
  • rotating directional wings are used, which allow a better straightness of the workpiece.
  • pivoting or moving different straightening units into engagement and out of engagement with the workpiece to bring (rotating straightening / Rolleninate, small wire diameter / large wire diameter).
  • a guide wheel could be provided at the rear end of the straightening unit, which reduces the rotation of the workpiece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP10002709.3A 2009-06-05 2010-03-15 Dispositif de pliage pour pièces usinées en forme de tige Active EP2258494B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009024075A DE102009024075B4 (de) 2009-06-05 2009-06-05 Biegevorrichtung für stabförmige Werkstücke

Publications (2)

Publication Number Publication Date
EP2258494A1 true EP2258494A1 (fr) 2010-12-08
EP2258494B1 EP2258494B1 (fr) 2013-06-19

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Family Applications (1)

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EP10002709.3A Active EP2258494B1 (fr) 2009-06-05 2010-03-15 Dispositif de pliage pour pièces usinées en forme de tige

Country Status (3)

Country Link
US (1) US8561449B2 (fr)
EP (1) EP2258494B1 (fr)
DE (1) DE102009024075B4 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012130350A1 (fr) * 2011-03-30 2012-10-04 Wafios Aktiengesellschaft Tête de pliage pour plier des pièces en forme de barre et de tube
ITUD20120160A1 (it) * 2012-09-19 2014-03-20 Omcg S R L Macchina per la piegatura tridimensionale di un prodotto metallico
CN104226859A (zh) * 2014-09-05 2014-12-24 冯广建 一种用于钢筋加工的自动剪弯机
CN104259340A (zh) * 2014-09-05 2015-01-07 冯广建 全自动多轴联动复式钢筋成型弯箍机构
CN105880334A (zh) * 2016-04-07 2016-08-24 江阴创博机械制造有限公司 多种汽车消音器吊挂柔性弯管通用设备
AT518420A4 (de) * 2016-04-08 2017-10-15 Progress Holding Ag Biegemaschine
CN108213132A (zh) * 2017-11-27 2018-06-29 南京航空航天大学 三维自由弯曲中防止发生干涉的装置及方法
CN110681743A (zh) * 2019-09-15 2020-01-14 张旦 一种基于新能源的不锈钢管件弯曲装置
CN110958919A (zh) * 2017-06-26 2020-04-03 瓦菲奥斯股份公司 生产弯曲部件的方法和执行该方法的弯曲机

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106942A1 (de) 2011-07-08 2013-01-10 Wafios Ag Biegevorrichtung für stabförmige Werkstücke
DE102012219639A1 (de) 2012-05-31 2013-12-05 Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg Verfahren zum Rollbiegen eines Profils, Profil, Verfahren zur Herstellung gebogener Profilwerkstücke, gebogenes Profilwerkstück, Vorrichtung zum Rollbiegen eines Profils sowie Extrusions- und Rollbiegelinie
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
US9908169B2 (en) * 2013-09-06 2018-03-06 Winton Machine Company Process to cut coax cable
US20190240721A1 (en) * 2018-02-05 2019-08-08 Kenneth A. Fullick Machine and Method of Introducing a Camber into a Length of Wire
US11541441B2 (en) 2018-03-27 2023-01-03 Sandvik Materials Technology Deutschland Gmbh Transport system for a wire or a sheet and method for delivering a wire or a sheet
WO2019235796A1 (fr) * 2018-06-04 2019-12-12 한국기계연구원 Dispositif de courbure de fil orthodontique
WO2020111926A1 (fr) * 2018-11-26 2020-06-04 Gilbert Reisman Alfredo Robot plieur de fil orthodontique pour la technique d'orthodontie linguale
US11752534B2 (en) * 2018-12-11 2023-09-12 Ndsu Research Foundation Automatic metal wire bending (AMWB) apparatus to manufacture shape conforming lattice structure with continuum design for manufacturable topology
DE102019212090B4 (de) * 2019-08-13 2024-02-01 Wafios Aktiengesellschaft Umformmaschine mit Einzugseinrichtung
DE102019125159A1 (de) * 2019-09-18 2021-03-18 Sandvik Materials Technology Deutschland Gmbh Transportsystem für ein Rohr, einen Draht oder ein Blech und Verfahren zum Ausliefern eines Rohrs, eines Drahts oder eines Blechs
IT202100022250A1 (it) * 2021-08-24 2023-02-24 Simat S R L Macchina e procedimento per la piegatura di un prodotto oblungo

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FR2602160A1 (fr) 1986-08-04 1988-02-05 Latour Fils Procede et machine modulaire de cambrage de fils metalliques
EP0379030B1 (fr) 1989-01-18 1993-09-08 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Ciseaux mobiles montés en amont d'une cintreuse et procédé pour cintrer les bouts arrières de barres
EP1396296A1 (fr) 2002-09-04 2004-03-10 Schnell S.p.A. Procédé pour couper et éventuellement plier des profilés par une plieuse et une machine de formage, notamment des profilés en forme de barres
EP1272293B1 (fr) 2000-04-03 2004-06-02 Macsoft (Société Anonyme) Machine de cintrage de barres a nez de pliage effa able
EP1434660B1 (fr) 2001-09-14 2007-04-18 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Cintreuse pour profiles, tels que des pieces rondes de renforcement ou similaires

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DE502004004631D1 (de) * 2003-12-22 2007-09-27 Komax Holding Ag Kabelbearbeitungseinrichtung
DE502004007277D1 (de) * 2004-03-26 2008-07-10 Wafios Ag Biegevorrichtung für stab- und rohrförmige Werkstücke
ATE396801T1 (de) * 2006-04-07 2008-06-15 Wafios Ag Biegemaschine für stabförmige werkstücke aus draht, rohrmaterial oder dgl.

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FR2602160A1 (fr) 1986-08-04 1988-02-05 Latour Fils Procede et machine modulaire de cambrage de fils metalliques
EP0379030B1 (fr) 1989-01-18 1993-09-08 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Ciseaux mobiles montés en amont d'une cintreuse et procédé pour cintrer les bouts arrières de barres
DE69003116T2 (de) 1989-01-18 1994-01-05 Piegatrici Macch Elettr Stromaufwärts einer Biegeeinrichtung angeordnete bewegbare Schere und Verfahren zum Biegen der hinteren Enden von Stangen.
EP1272293B1 (fr) 2000-04-03 2004-06-02 Macsoft (Société Anonyme) Machine de cintrage de barres a nez de pliage effa able
DE60103632T2 (de) 2000-04-03 2005-06-16 Numalliance Stäbebiegevorrichtung mit auslöschbahrer biegenase
EP1434660B1 (fr) 2001-09-14 2007-04-18 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Cintreuse pour profiles, tels que des pieces rondes de renforcement ou similaires
DE60219651T2 (de) 2001-09-14 2007-12-27 M.E.P. Macchine Elettroniche Piegatrici S.P.A. Biegevorrichtung für profile, wie runde bewehrungsteile oder ähnliches
EP1396296A1 (fr) 2002-09-04 2004-03-10 Schnell S.p.A. Procédé pour couper et éventuellement plier des profilés par une plieuse et une machine de formage, notamment des profilés en forme de barres

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9468963B2 (en) 2011-03-30 2016-10-18 Wafios Aktiengesellschaft Bending head for bending rod- and pipe-shaped workpieces
WO2012130350A1 (fr) * 2011-03-30 2012-10-04 Wafios Aktiengesellschaft Tête de pliage pour plier des pièces en forme de barre et de tube
ITUD20120160A1 (it) * 2012-09-19 2014-03-20 Omcg S R L Macchina per la piegatura tridimensionale di un prodotto metallico
CN104226859A (zh) * 2014-09-05 2014-12-24 冯广建 一种用于钢筋加工的自动剪弯机
CN104259340A (zh) * 2014-09-05 2015-01-07 冯广建 全自动多轴联动复式钢筋成型弯箍机构
CN105880334B (zh) * 2016-04-07 2017-10-31 江阴创博机械制造有限公司 多种汽车消音器吊挂柔性弯管通用设备
CN105880334A (zh) * 2016-04-07 2016-08-24 江阴创博机械制造有限公司 多种汽车消音器吊挂柔性弯管通用设备
AT518420A4 (de) * 2016-04-08 2017-10-15 Progress Holding Ag Biegemaschine
AT518420B1 (de) * 2016-04-08 2017-10-15 Progress Holding Ag Biegemaschine
CN110958919A (zh) * 2017-06-26 2020-04-03 瓦菲奥斯股份公司 生产弯曲部件的方法和执行该方法的弯曲机
US11179760B2 (en) 2017-06-26 2021-11-23 Wafios Aktiengesellschaft Method of producing a bent part and bending machine for performing the method
CN108213132A (zh) * 2017-11-27 2018-06-29 南京航空航天大学 三维自由弯曲中防止发生干涉的装置及方法
CN110681743A (zh) * 2019-09-15 2020-01-14 张旦 一种基于新能源的不锈钢管件弯曲装置

Also Published As

Publication number Publication date
US20100307213A1 (en) 2010-12-09
DE102009024075B4 (de) 2012-11-29
DE102009024075A1 (de) 2010-12-09
US8561449B2 (en) 2013-10-22
EP2258494B1 (fr) 2013-06-19

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