EP2475474B1 - Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés - Google Patents

Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés Download PDF

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Publication number
EP2475474B1
EP2475474B1 EP10760910.9A EP10760910A EP2475474B1 EP 2475474 B1 EP2475474 B1 EP 2475474B1 EP 10760910 A EP10760910 A EP 10760910A EP 2475474 B1 EP2475474 B1 EP 2475474B1
Authority
EP
European Patent Office
Prior art keywords
bending
machine according
workpiece
carriage
bending machine
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.)
Not-in-force
Application number
EP10760910.9A
Other languages
German (de)
English (en)
Other versions
EP2475474A2 (fr
Inventor
Thomas Steffen
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.)
Daetwyler Global Tec Holding AG
Original Assignee
Mewag Maschinenfabrik 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 Mewag Maschinenfabrik AG filed Critical Mewag Maschinenfabrik AG
Priority to PL10760910T priority Critical patent/PL2475474T3/pl
Publication of EP2475474A2 publication Critical patent/EP2475474A2/fr
Application granted granted Critical
Publication of EP2475474B1 publication Critical patent/EP2475474B1/fr
Not-in-force legal-status Critical Current
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
    • 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
    • B21D9/073—Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only with one swinging forming member

Definitions

  • the invention relates to a bending machine for bending elongate workpieces, in particular pipes or profiles, with a machine frame, with this guided longitudinally displaceable feed device and Dorngurzugs worn, with a bending device with at least one bending tool, wherein the feed device receiving the at least one workpiece Chuck is assigned.
  • the object of the present invention was to improve a bending machine of the type mentioned above in such a way that it eliminates the above drawbacks and also optimizes the operability with respect to exchanging the collets and mandrel bars and increases the stability during bending of the workpieces ,
  • the object is achieved according to the Auspruch 1 according to the invention.
  • the bending machine is characterized in that the feed device with the collet and the Dorn Wegzugs engaged are guided longitudinally displaceable laterally on the machine frame, so that the feeding of the feed device with the at least one workpiece as well as the operation of Dorn Dornzugs responded can be done easily and user-friendly.
  • the work can be carried out especially on workpieces with a larger cross section to approximately half the height of the person.
  • the tool components to be used such as collets, Dornstangen and others, also quickly and easily delivered.
  • Fig.1 1 shows a bending machine 10 which serves to bend one or more workpieces 11 and which essentially comprises a machine frame 20 and a bending device 60 flange-mounted on the end face thereof.
  • a feed device 30 and a mandrel retraction device 40 are guided longitudinally displaceable.
  • the workpiece 11 is clamped and it is automatically brought by this in the corresponding bending position. It may also be included in this feed device 30, an unspecified pipe rotating device through which a pipe to be bent by predetermined angle can be rotated.
  • a mandrel 42 is inserted into the interior of the particular intended as a pipe workpiece 11, wherein the mandrel 42 has on its front side approximately corresponding to the inner cross section of the workpiece to be bent articulated, not shown head, by means of the bending of the workpiece in in a known manner prevents the latter is not changed in the bent portion in the mold.
  • both the feed device 30 and the mandrel retraction device 40 are guided longitudinally displaceable laterally on the machine frame.
  • the advancing 30 and Dornschzugs Rhein 40 extending in approximately vertical longitudinal extent are slidably guided in the horizontal direction on the lower and the upper side of a respective common guideway 22, each with a rack 24.
  • the machine stand 20 is composed of several juxtaposed modules 10 'together and consists essentially of a cross-sectionally C-shaped longitudinal stand 12 with the guideways 22, a cabin frame 15 surrounding this longitudinal stand 12 with several longitudinally arranged preferably made of transparent material sliding doors 16.
  • a cross-sectionally C-shaped longitudinal stand 12 with the guideways 22, a cabin frame 15 surrounding this longitudinal stand 12 with several longitudinally arranged preferably made of transparent material sliding doors 16.
  • the machine stand 20 the front side still a final wall 14, opposite a connecting frame 15 and 21 feet assigned.
  • electrical cabinets 17, machine control units or the like are placed on the back of the machine stand 20.
  • the machine stand 20 is designed in such a way that the bending device 60 can be mounted on the front side of the machine stand on the left or right as required.
  • the end wall 14 or these connection frame 15 would then be arranged vice versa.
  • the bending device 60 are assigned a plurality of superimposed on an axis 66 bending tools 65, which are present disc-shaped.
  • This axis 66 is vertical, that is aligned perpendicular to the feed direction of the respective workpiece 11.
  • a known per se pivotable clamping arm 70 is provided with a plurality of clamping jaws 64. These jaws 64 are arranged adjustable in the clamping arm 70 and are at a high pressure against the Workpiece 11 and the bending tool 65 is pressed.
  • a bending drive 68 pivoting the clamping arm 70 about this axis 66, the workpiece is bent around the outer periphery of the bending tool 65 dimensionally accurate.
  • the feed device 30 as a multi-part frame 30 'with a through hole 34 for the mandrel 42 slidably formed and has for this purpose on the top and bottom each guide 22', which slide in the guideways 22 on the machine stand 20.
  • these guides 22 ' are each driven by a separate drive 36 gears 24', which are in engagement with a respective rack 24 at the machine stand or longitudinal stand 12.
  • Fig. 3 this up and down on the guides 22 of the longitudinal stand 12 adjustable feed device 30 on the front side a collet 50 with or without twisting device for the workpiece.
  • This collet 50 which is not illustrated in detail, is mounted in a height-adjustable manner, so that the workpiece to be bent can be adapted to the height position of the bending tool in the bending device 60.
  • FIG. 4 and FIG. 5 show the Dorn Wegzugs worn 40, which comprises a multi-part frame 40 'and is formed sled-shaped and as the feed device 30 on the top and bottom each have a guide 22', which in the guideways 22 on the machine stand 20 slide.
  • these guides 22 'height-adjustable toothed segments 44 are contained in the frame 40', through which the device 40 with the machine stand 20 can be locked. This results in a very stable secure positioning of the insertable into the workpiece mandrel 42, which is 45 clamped in a height-adjustable slide.
  • An actively connected to the carriage 45 and rotatable by a drive 48 spindle 47 allows the height adjustment of the carriage 45 and thus accurate positioning of the mandrel 42 relative to the workpiece 11 and the bending tool.
  • the clamping arm 70 is box-shaped and a one or more jaws 64 receiving carriage 75 is guided on both sides adjustable in this clamping arm 70.
  • This carriage 75 is expediently vertically aligned in its longitudinal extent and held longitudinally adjustable in guides 72 of the box-shaped clamping arm 70 at the top and bottom.
  • Fig. 6 are the box-forming side walls 71 on the clamping arm 70, as these in Fig. 1 are visible, omitted so that the carriage 75 is visible.
  • the carriage 75 and with it the clamping jaws 64 by a drive means 77 prepositioned or coarse and additionally adjustable by a separate Verspann affection 80 so that the clamping jaws 64 during bending against the workpiece with a predetermined clamping force can be pressed.
  • the carriage 75 is adjustable by a spindle 79 rotatable by the drive device 77.
  • This bending tools centering axis 66 is mounted at both ends of a respective flange 73, 74 on the box-shaped clamping arm 70. With the schematically indicated bending drive 68 below the Axis 66, then the clamping arm 70 can be pivoted about the axis 66.
  • This tensioning device 80 separated from the drive device 77 is distinguished by a further preferred feature, namely that this is realized by a wedge gear 80.
  • This wedge gear 80 includes a first wedge 81 displacing the carriage 75 and a second wedge 82 cooperating therewith.
  • the first wedge 81 is hinged to a frame 70 'of the tensioning arm 70, and this spindle 79 rotatably connected to the carriage 75 is in turn at the first Wedge 81 held.
  • the second wedge 82 is movable transversely to the direction of movement of the carriage 75 by a drive (not shown) in the clamping arm and is supported on the one hand on the first wedge 81 and on the other hand on the vertical part 70 "of the frame 70. When this second wedge 82 is adjusted, the first wedge becomes 81 and with it the carriage 75 in the horizontal direction against the axis 66 moves towards.

Landscapes

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

Claims (13)

  1. Machine de cintrage pour cintrer des pièces oblongues, notamment des tubes ou des profilés, comprenant un bâti (20) de machine, un dispositif (30) d'avance guidé sur celui-ci en coulissant longitudinalement et un dispositif (40) de retour de mandrin, un dispositif (60) de cintrage ayant au moins un outil (65) de cintrage, dans laquelle une pince (50) de serrage recevant la au moins une pièce (11) est associée au dispositif (30) d'avance, caractérisée en ce que à la fois le dispositif (30) d'avance et le dispositif (40) de retour du mandrin sont guidés en forme de chariot dans la direction horizontale sur respectivement une voie (22) de guidage du côté avant du bâti (20) de la machine en coulissant sur son côté inférieur et sur côté supérieur et s'étendent ainsi suivant une étendue longitudinale à peu près verticale, de sorte que l'alimentation du dispositif (30) d'avance en la au moins une pièce (11), ainsi qu'également la possibilité de commande du dispositif (40) de retour du mandrin, peut s'effectuer d'une manière simple et commode pour les utilisateurs, et en ce que la pince (50) de serrage est montée réglable en hauteur du côté avant, de manière à pouvoir adapter la pièce (11) à cintrer à la position en hauteur de l'outil (65) de cintrage dans le dispositif (60) de cintrage.
  2. Machine de cintrage suivant la revendication 1, caractérisée en ce que le dispositif (30) d'avance et le dispositif (40) de retour du mandrin sont appuyés sur une piste (22) de guidage commune.
  3. Machine de cintrage suivant la revendication 1 ou 2, caractérisée en ce que le dispositif (30) d'avance est entraîné du côté supérieur et du côté inférieur par au moins respectivement une roue (24') d'entraînement, les roues (24') d'entraînement pouvant être mises en rotation par respectivement un entraînement (36) indépendant et pouvant engrener dans le bâti (20) de la machine avec la voie (22) de guidage respective ayant une crémaillère (24).
  4. Machine de cintrage suivant l'une des revendications 1 à 3, caractérisée en ce que le dispositif (40) de retour du mandrin peut être couplé au dispositif (30) d'avance lors du déplacement de ce dernier en pouvant être verrouillé lors du cintrage.
  5. Machine de cintrage suivant l'une des revendications précédentes 1 à 4, caractérisée en ce que le bâti (20) de la machine est composé de plusieurs modules rangés les uns à côté des autres et est conformé de manière à ce que l'espace formé par la course du dispositif (30) d'avance ou du dispositif (40) de retour du mandrin et de manière à ce que les voies (22) de guidage puissent être fermées par une porte (16) coulissante ou par plusieurs portes (16) coulissantes, de préférence en un matériau transparent, et disposée du côté longitudinal.
  6. Machine de cintrage suivant la revendication 5, caractérisée en ce qu'au moins une armoire (17) électrique des groupes de commande de la machine ou analogues sont placés du côté arrière du bâti (20) de la machine.
  7. Machine de cintrage suivant l'une des revendications précédentes 1 à 6, caractérisée en ce que la bâti (20) de la machine est tel que le dispositif (60) de cintrage peut être monté suivant les besoins à gauche ou à droite du côté frontal du bâti de la machine.
  8. Machine de cintrage suivant l'une des revendications précédentes 1 à 7, comprenant un dispositif (60) de cintrage ayant au moins un outil (65) de cintrage, un bras (70) de serrage pouvant pivoter autour de cet outil (65) de cintrage et au moins une mâchoire (64) de serrage, par laquelle une pièce (11) respective peut être cintrée autour de l'outil (65) de cintrage, caractérisée en ce que
    le bras (70) de serrage est constitué en forme de caisson, dans lequel un chariot (75) recevant la au moins une mâchoire (64) de serrage est guidé de manière réglable des deux côtés.
  9. Machine de cintrage suivant la revendication 8, caractérisée en ce que l'étendue longitudinale du chariot (75) est dirigée verticalement et le chariot est guidé en haut et en bas de manière réglable en longueur dans des guidages (72) du bras (70) de serrage en forme de caisson.
  10. Machine de cintrage suivant la revendication 8 ou 9, caractérisée en ce que le chariot (75) et avec lui la au moins une mâchoire (64) de serrage peuvent être prépositionnés ou déplacés grossièrement par un dispositif (77) d'entraînement et, en outre, peuvent être mis en place par un dispositif (80) distinct de blocage, de manière à ce que la mâchoire (64) de serrage ou les plusieurs mâchoires (64) de serrage puisse être pressée par une force de serrage prescrite sur la pièce (11) pendant le cintrage.
  11. Machine de cintrage suivant la revendication 8, caractérisée en ce qu'un axe (66) centrant l'outil (11) de cintrage est articulé aux deux extrémités au bras (70) de serrage en forme de caisson par respectivement un flasque (73, 74).
  12. Machine de cintrage suivant l'une des revendications précédentes 1 à 7, comprenant un dispositif (60) de cintrage ayant au moins un outil (65) de cintrage, un bras (70) de serrage pouvant pivoter autour de cet outil (65) de cintrage, au moins une mâchoire (64) de serrage, par laquelle une pièce (11) respective peut être cintrée autour de l'outil (65) de cintrage, caractérisée en ce que
    la au moins une mâchoire (64) de serrage peut être réglée par un dispositif (80) de blocage de manière à pouvoir être pressée sur la pièce (11) avec une force de serrage prescrite, le dispositif (80) de blocage ayant une transmission à coin.
  13. Machine de cintrage suivant la revendication 12, caractérisée en ce que la transmission comprend un premier coin (81) déplaçant la au moins une mâchoire (64) de serrage par l'intermédiaire d'un chariot (75) et un deuxième coin (82) coopérant avec le premier coin, le deuxième coin (82) pouvant être déplacé transversalement à la direction de déplacement du chariot (75) par un entraînement commandé.
EP10760910.9A 2009-09-09 2010-09-09 Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés Not-in-force EP2475474B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10760910T PL2475474T3 (pl) 2009-09-09 2010-09-09 Giętarka do gięcia podłużnych przedmiotów obrabianych, zwłaszcza rur względnie kształtowników

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01395/09A CH701801A2 (de) 2009-09-09 2009-09-09 Biegemaschine zum Biegen von länglichen Werkstücken, insbesondere von Rohren bzw. Profilen.
PCT/EP2010/005536 WO2011029594A2 (fr) 2009-09-09 2010-09-09 Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés

Publications (2)

Publication Number Publication Date
EP2475474A2 EP2475474A2 (fr) 2012-07-18
EP2475474B1 true EP2475474B1 (fr) 2013-07-10

Family

ID=43447340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10760910.9A Not-in-force EP2475474B1 (fr) 2009-09-09 2010-09-09 Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés

Country Status (4)

Country Link
EP (1) EP2475474B1 (fr)
CH (1) CH701801A2 (fr)
PL (1) PL2475474T3 (fr)
WO (1) WO2011029594A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447363A (zh) * 2013-08-15 2013-12-18 冯东 新型弯管机
CN108941288A (zh) * 2017-05-18 2018-12-07 张家港市伯勤机械厂 一种自动上下料弯管机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637454C2 (de) * 1976-08-20 1982-07-08 Robert Dipl.-Ing. 5000 Köln Schwarze Vorrichtung zum Biegen zweier ineinander gesteckter Rohre
DE3033300A1 (de) * 1980-09-04 1982-04-01 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine
DE3238264A1 (de) * 1982-10-15 1984-04-19 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine mit biegedorn
CH683598A5 (de) * 1990-03-13 1994-04-15 Mewag Maschinenfabrik Ag Rohrbiegemaschine.
DE50209344D1 (de) 2002-07-13 2007-03-15 Trumpf Werkzeugmaschinen Gmbh Biegemaschine
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447363A (zh) * 2013-08-15 2013-12-18 冯东 新型弯管机
CN108941288A (zh) * 2017-05-18 2018-12-07 张家港市伯勤机械厂 一种自动上下料弯管机

Also Published As

Publication number Publication date
CH701801A2 (de) 2011-03-15
PL2475474T3 (pl) 2014-04-30
WO2011029594A3 (fr) 2011-07-14
EP2475474A2 (fr) 2012-07-18
WO2011029594A2 (fr) 2011-03-17

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