EP0257182B1 - Cintreuse pour tubes - Google Patents

Cintreuse pour tubes Download PDF

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Publication number
EP0257182B1
EP0257182B1 EP87104357A EP87104357A EP0257182B1 EP 0257182 B1 EP0257182 B1 EP 0257182B1 EP 87104357 A EP87104357 A EP 87104357A EP 87104357 A EP87104357 A EP 87104357A EP 0257182 B1 EP0257182 B1 EP 0257182B1
Authority
EP
European Patent Office
Prior art keywords
bending
machine frame
template
pipe
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.)
Expired - Lifetime
Application number
EP87104357A
Other languages
German (de)
English (en)
Other versions
EP0257182A2 (fr
EP0257182A3 (en
Inventor
Rigobert Dipl.-Ing. Schwarze
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0257182A2 publication Critical patent/EP0257182A2/fr
Publication of EP0257182A3 publication Critical patent/EP0257182A3/de
Application granted granted Critical
Publication of EP0257182B1 publication Critical patent/EP0257182B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D7/021—Construction of forming members having more than one groove
    • 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 according to the preamble of claim 1.
  • the bending template for changing the bending grooves can be raised and lowered in the vertical direction relative to the machine frame and can be moved in the horizontal direction transverse to the longitudinal extension of the frame. Furthermore, a clamping jaw is provided which is movable relative to the machine frame in order to clamp the pipe to be bent or to be able to remove it from one of the bending grooves. The alignment of the clamping jaw takes place via a drive device, by means of which the bending grooves of the bending template and the clamping surface of the clamping jaw are brought to coincide.
  • Another solution proposes that the tube is moved transversely to the longitudinal extension of the tube bending machine frame when the tube is stationary or only moved in the axial direction by the feed carriage, and within this movable bending head only the bending template is mounted so that it can be swiveled up and down in the vertical direction.
  • the present invention is based on the object of creating a pipe bending machine in which the relative movement between the bending head and the feed carriage and the relative movement between the clamping jaw and the bending head can be carried out in a structurally simple manner with low weight.
  • the solution according to the invention permits the unimpeded attachment of other tools and devices which are necessary or expedient for pipe bending.
  • the bending head forms a structural unit with the bending template and its drive together with the tensioning device. This solution enables a particularly simple vertical movement of the bending head.
  • the attachment to a vertical side wall of the tube bending machine frame is present, in particular in connection with the proviso that two cylindrical, vertically directed guides are present on the machine frame, which are encompassed by one the structural unit of the bending template and Clamp-bearing beam, by an existing between the two guides Piston-cylinder drive is raised and lowered.
  • the piston-cylinder drive consists of a closed cylinder embedded in the bar, in which the piston is arranged, the piston rod of which is firmly connected to the machine frame and the piston can be loaded with oil from two sides.
  • the pipe bending machine 10 consists of the base frame 11, on the upper side of which the horizontally extending box-shaped support 12 is arranged, which protrudes from the base frame 11 at both ends and is also referred to as a machine frame.
  • the feed carriage 13 is moved, which is mounted on conventional rails, not shown in the drawing.
  • This feed carriage 13 can be moved on a guide 14 transversely to the longitudinal extent of the machine frame 12 via an associated known drive.
  • a pressing device which is arranged on a rail 15a and at the same time can be moved with the feed carriage.
  • This pressing device can also be a device for bending with a mandrel inside the tube 16, which is carried over the clamping sleeve 17 of the feed carriage and is moved in the direction of the bending head 18.
  • the tube 16 is rotated via this clamping sleeve so that, as shown in FIG. 1, the tube can be bent in several planes.
  • the drive motor is designated, which is arranged on the housing 20 and actuates the clamping sleeve 17.
  • this unit consisting of a feed carriage, clamping sleeve and its drive is referred to as a positioning device.
  • the bending head 18 has the drive motor 21, via which the tiered bending template 22 is rotated.
  • This tier template has arranged different one above the other with correspondingly assigned diameters, so that depending on the choice of the groove in the tube 16, smaller or larger bending radii were maintained can be.
  • the swivel arm 23 is fastened to the bending head with the clamping device 24, to which a clamping jaw to be described later is fastened. With 25 the slide rail pressure is designated.
  • This unit of the bending head 18 with bending template, tensioning device and slide rail pressure is provided with a bar 26 which is attached to the vertical side 27 of the machine frame 12 and embedded therein.
  • Figure 1 shows the bending head 18 in its upper position.
  • FIG. 2 shows the bending head 18 in its downward position, the positioning device also being moved at the same time.
  • FIG. 2 shows that this positioning device has been moved transversely to the vertical side wall 27 and is in a different position than that shown in the figure.
  • the height adjustment of the bending head with the unit bending template 22, swivel arm 23 and slide rail 25 takes place according to the embodiment at the location of attachment to the machine frame 12, as can be seen from Figures 1 and 2, but also particularly clearly from Figures 3 and 4.
  • FIG. 4 shows the two cylindrical guides 28 and 29 fastened to the machine frame 12, which are mounted on plates 30 and 31 of the machine frame.
  • a cylinder 32 is embedded in the beam 26 and is closed by a cover 33 which is provided with multiple seals.
  • the piston 34 is present in the cylinder 32 and also has multiple seals on its circumference.
  • the piston rod 35 is attached to the plate 30 of the machine frame.
  • the cylindrical guides are surrounded by sliding bushes 36 and 37 of the beam 26.
  • FIG. 4 shows the raised position of the bending head because oil was pumped through the inlet opening 38 into the upper cylinder space. If, as FIG. 5 shows, oil is pumped through the lower inlet 39 to the other side of the piston, then the bar is lowered as shown in FIG.
  • Figures 4 and 5 thus show that the fastening device for fastening the bending head above the beam on the machine frame is also designed as a lifting and lowering device.
  • FIG. 6 shows the bending template 22 with the bending grooves 40 and 41 which are different at different heights and which are straight in this area for clamping with the aid of the clamping jaw 42. There may also be more than the two bending grooves shown. Finally, deviating from the illustration in FIG. 6, the upper groove 40 can also be the small bending radius and the lower groove 41 have the larger bending radius.
  • the clamping jaw 42 is mounted on a lever 43 about the horizontal axis 44 of the clamping device.
  • the bending template or its holder is provided with a sliding surface 45, 45a, on which the clamping jaw is raised when the clamping jaw is closed. The height 45 of the clamping jaw 42 is determined by the section 45a. If the tensioning device, as shown in FIG.
  • FIG. 8 shows the slide rail 50, which moves a carrier 51 on the slide rail 25, also shown in FIG. 3, via the piston-cylinder arrangement 52 shown in FIG.

Landscapes

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

Claims (7)

  1. Cintreuse pour tubes comportant :
       un bâti de mâchine (11) s'étendant en longueur,
       un chariot mobile (13), propre à se déplacer le long du bâti de machine (11), qui porte un manchon de serrage (17) fixant le tube à cintrer,
       une tète de cintrage (18) disposée à une extrémité de tête du bâti de machine (11), qui est guidée de manière à se déplacer en sens vertical par rapport au bâti de machine (11) et qui porte un gabarit de cintrage (22) rotatif autour d'un axe vertical, se présentant sous forme d'un gabarit étagé à plusieurs gorges de cintrage (40, 41) disposées l'une au-dessus de l'autre et présentant des diamètres différents pour différents rayons de cintrage, un déplacement relatif entre le gabarit de cintrage (22) et le bâti de machine (11) se réalisant en sens vertical pour utiliser l'une ou l'autre gorge de cintrage (40, 41) ainsi que pour l'échange des gorges de cintrage,
       une glissière (25) coopérant avec le gabarit de cintrage (22),
       un dispositif de serrage (24) pivotant autour de l'axe du gabarit de cintrage (22) et présentant une mâchoire mobile (42) ayant des gorges de serrage adaptées aux gorges de cintrage (40, 41) du gabarit de cintrage (22),
       caractérisée en ce que le chariot mobile (13) peut se déplacer en sens horizontal, transversalement à l'extension longitudinale du bâti de machine (12),
       que la bride de serrage (42) est prévue sur un levier (43) pouvant pivoter autour d'un axe horizontal (44),
       et que le levier (43) s'appuie sur une face de glissement (45, 45a) s'étendant obliquement par rapport à l'axe longitudinal du gabarit de cintrage (22) et, lors du mouvement ascendant de la mâchoire de serrage le long des gorges de cintrage (40, 41), glisse le long de la face de glissement, de manière que les gorges de serrage se placent aux niveaux des gorges de cintrage (40, 41).
  2. Cintreuse pour tubes suivant la revendication 1, caractérisée en ce que la tête de cintrage (18) constitue, avec le gabarit de cintrage (22) et son entraînement ainsi qu'avec le dispositif de serrage (24), un ensemble de construction.
  3. Cintreuse pour tubes suivant la revendication 2, caractérisée en ce que l'ensemble de construction formé du gabarit de cintrage (22) et du dispositif de serrage (24) est, avec les entraînements correspondants, guidé de manière à pouvoir se déplacer verticalement sur le bâti de machine (12).
  4. Cintreuse pour tubes suivant la revendication 3, caractérisée en ce que l'ensemble de construction formé du gabarit de cintrage (22) et du dispositif de serrage (24) est prévu sur un flasque vertical (27) du bâti de machine (12).
  5. Cintreuse pour tubes suivant la revendication 4, caractérisée en ce que l'ensemble de construction est fixé à une poutre (26) pénétrant dans le flasque (27) du bâti de machine (12).
  6. Cintreuse pour tubes suivant la revendication 4, caractérisée en ce qu'il est prévu, sur le bâti de machine (12), deux guides (28, 29) cylindriques, orientés verticalement, entourés d'une poutre (26) portant l'ensemble de construction formé du gabarit de cintrage (22) et du dispositif de serrage (24) et pouvant monter et descendre au moyen d'un entraînement à cylindre et piston (32, 34) présent entre les deux guides (28, 29).
  7. Cintreuse pour tubes suivant la revendication 6, caractérisée en ce que l'entraînement à cylindre et piston (32, 34) consiste en un cylindre fermé (32) pénétrant dans la poutre (26), dans lequel est disposé le piston (34) dont la tige de piston (35) est solidaire du bâti de machine (12, 30) et que le piston (34) peut être soumis des deux côtés à une admission d'huile.
EP87104357A 1986-08-13 1987-03-24 Cintreuse pour tubes Expired - Lifetime EP0257182B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3627502 1986-08-13
DE3627502A DE3627502C2 (de) 1986-08-13 1986-08-13 Rohrbiegemaschine

Publications (3)

Publication Number Publication Date
EP0257182A2 EP0257182A2 (fr) 1988-03-02
EP0257182A3 EP0257182A3 (en) 1988-05-11
EP0257182B1 true EP0257182B1 (fr) 1991-07-24

Family

ID=6307327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104357A Expired - Lifetime EP0257182B1 (fr) 1986-08-13 1987-03-24 Cintreuse pour tubes

Country Status (4)

Country Link
US (1) US4788845A (fr)
EP (1) EP0257182B1 (fr)
CA (1) CA1297392C (fr)
DE (2) DE3627502C2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870849A (en) * 1987-09-25 1989-10-03 Eaton Leonard Technologies, Inc. Method for tube bending with controlled clamp die arrangement
CH683598A5 (de) * 1990-03-13 1994-04-15 Mewag Maschinenfabrik Ag Rohrbiegemaschine.
DE4124715C2 (de) * 1990-07-26 1994-11-24 Usui Kokusai Sangyo Kk Vorrichtung zum mehrfachen Abbiegen eines Metallrohrs
US5617753A (en) * 1995-10-06 1997-04-08 Pines Manufacturing Low force auto-open tooling for tube bending machine
FR2746682B1 (fr) * 1996-03-27 1998-05-22 Sipelec Machine a cambrer les fils metalliques
EP0990471A1 (fr) * 1998-09-30 2000-04-05 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Machine à plier
CN101722218B (zh) * 2009-10-22 2011-06-15 张家港市杰创机械有限公司 弯管机中的成型装置
SE534834C2 (sv) * 2010-05-17 2012-01-17 Bengt Forsberg Hållaranordning för att fasthålla ett trådämne
CN110560524B (zh) * 2019-09-27 2024-05-28 常州至能自动化设备有限公司 多半径弯管机
CN112496107B (zh) * 2020-11-28 2022-03-22 青岛船用锅炉厂有限公司 一种锅炉蛇形管弯曲成型加工系统
CN112975421B (zh) * 2021-02-18 2022-06-14 湖北皓润新材料科技有限公司 铜管成型设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1417294A (en) * 1920-08-12 1922-05-23 Hercules Mfg Company Gripping device
US3299681A (en) * 1960-03-22 1967-01-24 Baldwin Lima Hamilton Corp Program controlled tube bender
DE1527319A1 (de) * 1963-09-10 1971-10-28 Harten Geb Boers Gertrud Van Rohrbiegemaschine zur Kaltverformung von Rohren
DE1552984C3 (de) * 1966-07-13 1975-01-09 H. Schwarze Soehne, Gebr. Schwarze, Peter Wirtz Kg, 5000 Koeln Rohrbiegemaschine mit einem an einer Vertikalachse schwenkbaren Biegetisch
DE1962590A1 (de) * 1969-12-13 1971-06-24 Hilgers Maschinen U App Bauans Rohrbiegemaschine
DE2101162A1 (de) * 1971-01-12 1972-07-20 J. Banning Ag, 4700 Hamm Rohrbiegemaschine
DE2249115A1 (de) * 1972-10-06 1974-04-11 Banning Ag J Hydraulisch betaetigbarer linearantrieb an rohrbiegemaschinen
US4063441A (en) * 1975-09-19 1977-12-20 Eaton-Leonard Corporation Apparatus for bending tubes
DE2746721C3 (de) * 1977-10-18 1981-03-19 Schwarze, Rigobert, Dipl.-Ing., 5000 Köln Rohrbiegemaschine
DE2910174A1 (de) * 1979-03-15 1980-09-25 Benteler Werke Ag Rohrbiegemaschine mit einem mit mehreren biegewerkzeugen versehenen biegekopf
US4495788A (en) * 1982-08-02 1985-01-29 Eaton-Leonard Corporation Multiple curvature bender
DE3240799A1 (de) * 1982-11-04 1984-05-17 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine

Also Published As

Publication number Publication date
EP0257182A2 (fr) 1988-03-02
DE3627502A1 (de) 1988-02-18
DE3771608D1 (de) 1991-08-29
EP0257182A3 (en) 1988-05-11
CA1297392C (fr) 1992-03-17
DE3627502C2 (de) 1995-06-14
US4788845A (en) 1988-12-06

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