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WO2011029594A2 - 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
WO2011029594A2
WO2011029594A2 PCT/EP2010/005536 EP2010005536W WO2011029594A2 WO 2011029594 A2 WO2011029594 A2 WO 2011029594A2 EP 2010005536 W EP2010005536 W EP 2010005536W WO 2011029594 A2 WO2011029594 A2 WO 2011029594A2
Authority
WO
WIPO (PCT)
Prior art keywords
bending
clamping
workpiece
machine according
feed
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.)
Ceased
Application number
PCT/EP2010/005536
Other languages
German (de)
English (en)
Other versions
WO2011029594A3 (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.)
Mewag Maschinenfabrik 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 EP10760910.9A priority Critical patent/EP2475474B1/fr
Priority to PL10760910T priority patent/PL2475474T3/pl
Publication of WO2011029594A2 publication Critical patent/WO2011029594A2/fr
Publication of WO2011029594A3 publication Critical patent/WO2011029594A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

  • Bending machine for bending elongate workpieces in particular pipes or profiles
  • 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 regard to exchanging the collets and mandrel bars and increases the stability during bending of the workpieces ,
  • 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.
  • clamping jaw / s By hiring the clamping jaw / s to the workpiece by means of a clamping device having a wedge gear very high defined contact forces can be generated.
  • the clamping jaw (s) and with it the slide can be pre-positioned or coarsely displaced by a separate drive device, whereby additionally an optimal design of this clamping arm is achieved.
  • Fig. 1 is a perspective view of the inventive bending machine
  • Fig. 2 is an end view of a feed device of the bending machine of Fig. 1;
  • Fig. 4 is a side view of a mandrel retracting means of the bending machine of Fig. 1;
  • Fig. 5 is an end view of the Dorn Wegzugs Skewed according
  • FIG. 6 shows a perspective side view of the tensioning arm and of the articulated axis of the bending machine according to FIG. 1.
  • FIG. 1 shows a bending machine 10 which serves to bend one or more workpieces 11 and which essentially consists of 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 so as to be longitudinally displaceable.
  • the workpiece 11 is festgespanni and it is automatically brought by this in the corresponding bending position.
  • a pipe rotating device (not further described) can be contained in this feed device 30, by means of which a pipe to be bent can be rotated by predetermined angle.
  • a mandrel 42 is inserted into the interior of the workpiece 1 1 provided in particular as a tube, wherein the mandrel 42 has on its front side an approximately the inner cross section of the workpiece to be bent corresponding articulated, not shown head, by means of the bending of the workpiece prevented in a conventional manner that 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 a plurality of modules 10 'arranged one behind the other and consists essentially of a cross-sectionally C-shaped longitudinal stand 12 with the guide tracks 22,
  • the space formed by the stroke of the feed or the mandrel retraction device and the guideways 22 can be closed, ie, a plurality of sliding doors 16 arranged longitudinally, preferably made of transparent material.
  • 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, ie aligned perpendicular to the feed direction of the respective workpiece 1 1.
  • 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 is designed as a multi-part frame 30 'with a passage opening 34 for the mandrel 42 in the form of a slide and for this purpose has a guide 22' on each of the top and bottom sides in the guideways 22 slide 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.
  • this feed device 30, which is adjustable at the top and bottom on the guides 22 of the longitudinal upright 12, has on the front a collet 50 with or without a turning 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.
  • FIGS. 4 and 5 show the mandrel retraction device 40, which comprises a multi-part frame 40 'and is designed in the form of a slide and, like the advancing device 30, has a guide 22' on the top and bottom side, which is located in the guide tracks 22 at the machine head. 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 dome 42, softer in a Bibnversteübaren pouring 45 is clamped.
  • 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 an accurate positioning of the core 42 relative to the workpiece 11 and the bending tool.
  • FIG. 6 Another feature essential to the invention is shown in FIG. 6, 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.
  • the side walls 71 forming this box shape are omitted on the tensioning arm 70, as can be seen in FIG. 1, 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 which is separated from the drive device 77, is characterized by a further feature to be invented, 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.
  • the machine stand could also be placed offset by 90 °, if necessary, so that the feed and Dornsch- zugs worn on top of the longitudinal stand back and forth would be displaced.

Landscapes

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

Abstract

L'invention concerne une machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés, comportant un montant de machine (20) pourvu d'un dispositif d'avancement (30) et d'un dispositif de retrait de mandrin (40) disposés longitudinalement coulissants sur le montant. Le dispositif de pliage (60) est pourvu d'au moins un outil de pliage (65) et une pince de serrage (50) recevant la ou les pièces est affectée au dispositif d'avancement (30). Le dispositif d'avancement (30) et le dispositif de retrait de mandrin (40) sont disposés longitudinalement coulissants sur le montant de machine (20) de façon latérale, de telle manière que le chargement du dispositif d'avancement (30) avec la ou les pièces (11) et l'utilisation du dispositif de retrait de mandrin (40) peuvent être réalisés de façon simple et conviviale. Le dispositif de pliage (60) comporte un bras de serrage pivotant (70) pourvu d'au moins une mâchoire de serrage (64) permettant de plier une pièce respective (11) autour de l'outil de pliage (65). Le bras de serrage (70) est conçu en forme de caisson dans lequel un chariot (75) recevant la ou les mâchoires de serrage (64) est guidé de façon à se déplacer des deux côtés.
PCT/EP2010/005536 2009-09-09 2010-09-09 Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés Ceased WO2011029594A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10760910.9A EP2475474B1 (fr) 2009-09-09 2010-09-09 Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés
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.
CH1395/09 2009-09-09

Publications (2)

Publication Number Publication Date
WO2011029594A2 true WO2011029594A2 (fr) 2011-03-17
WO2011029594A3 WO2011029594A3 (fr) 2011-07-14

Family

ID=43447340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/005536 Ceased WO2011029594A2 (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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111167902A (zh) * 2018-11-12 2020-05-19 苏迈特智能科技(江苏)有限公司 一种双向弯管机及其工作方法

Families Citing this family (3)

* 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
CN110180926A (zh) * 2019-05-30 2019-08-30 张家港市鑫铭达机械制造有限公司 高精度弯管机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1380363A1 (fr) 2002-07-13 2004-01-14 Trumpf Rohrtechnik GmbH + Co. KG Machine à cintrer

Family Cites Families (5)

* 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.
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1380363A1 (fr) 2002-07-13 2004-01-14 Trumpf Rohrtechnik GmbH + Co. KG Machine à cintrer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111167902A (zh) * 2018-11-12 2020-05-19 苏迈特智能科技(江苏)有限公司 一种双向弯管机及其工作方法

Also Published As

Publication number Publication date
EP2475474B1 (fr) 2013-07-10
CH701801A2 (de) 2011-03-15
PL2475474T3 (pl) 2014-04-30
WO2011029594A3 (fr) 2011-07-14
EP2475474A2 (fr) 2012-07-18

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