EP0872292A2 - Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés - Google Patents

Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés Download PDF

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Publication number
EP0872292A2
EP0872292A2 EP98104916A EP98104916A EP0872292A2 EP 0872292 A2 EP0872292 A2 EP 0872292A2 EP 98104916 A EP98104916 A EP 98104916A EP 98104916 A EP98104916 A EP 98104916A EP 0872292 A2 EP0872292 A2 EP 0872292A2
Authority
EP
European Patent Office
Prior art keywords
machine
carriage
bending
plate
workpiece
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
EP98104916A
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German (de)
English (en)
Other versions
EP0872292A3 (fr
EP0872292B1 (fr
Inventor
Marioalberto Biella
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.)
BLM SpA
Original Assignee
BLM SpA
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Filing date
Publication date
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Application filed by BLM SpA filed Critical BLM SpA
Publication of EP0872292A2 publication Critical patent/EP0872292A2/fr
Publication of EP0872292A3 publication Critical patent/EP0872292A3/fr
Application granted granted Critical
Publication of EP0872292B1 publication Critical patent/EP0872292B1/fr
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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/027—Combined feeding and ejecting devices

Definitions

  • the above invention relates to a machine for bending elongated parts, such as pipes, rods or profiles with one Machine frame that holds a sliding carriage, the one with a collet to carry out a controlled Equipped with rotation and displacement movement of the workpiece and takes up a bending head.
  • elongated material such as e.g. Tube
  • those for the transport of liquids, vapors or gases serve in devices and systems, sometimes very much has complex shapes.
  • the longitudinally extending material is in usually in the form of straight rods or tubes or in the form of material wound on drums expelled.
  • the rods or wraps are cut into individual sections cut to the desired length and then in Bending machines deformed.
  • the known bending machines of the type mentioned consist of a machine frame, which one on a plate movable carriage, which has a collet and one Carries sled with a bending head.
  • the collet is designed such that it Grip the workpiece in the form of a rod or a tube and move the workpiece relative to its longitudinal axis or can rotate.
  • the movable carriage is like this on the machine frame mounted that sliding the carriage in Transverse direction with respect to the longitudinal axis of the collet small steps is possible.
  • This known embodiment of a bending machine enables the die provided in the bending head opposite the axis of the workpiece, in the form of a rod or align a pipe to the workpiece in the Introduce die to then bend perform.
  • the well-known bending machines are also currently associated complex manipulators, e.g. programmable Robots for feeding and automatic Remove or transfer the workpiece to others Processing units serve.
  • the workpiece must be avoided Execution of the bending processes and after approval of the Work piece disorderly on the floor of the machine picks up, falls. In particular, it must be avoided that the Workpiece does not fall on assemblies of the bending machine what interrupt the execution of further processing operations would or if the workpiece fell off directly the floor, undergoes undesirable deformations that to reduce the quality of the finished product would lead.
  • Object of the above invention is the disadvantages of Avoid prior art and especially the Opportunities to create workpieces in the form of bars, Profiles or tubes without the use of any other Handling devices e.g. for dispensing or that Removing the workpiece from the bending machine enable and suggest a machine at the same time, which is simple in structure and a small number of too has controlling axes, at the same time a Reduction of the lateral space requirement of the bending machine is achieved to also work with workpieces simplify complex shape and larger dimensions.
  • Another object of the invention is to provide several Machining operations using a single Perform bending machine.
  • the object of the invention is achieved with a bending machine for machining longitudinally extending Material, such as pipes, rods or profiles, which has a base frame that receives a carriage, the one with a collet for controlled turning and Moving a workpiece and a bending head is provided and is characterized in that the Bending head is arranged on a sliding carriage and the sled with controllable actuation means is operatively connected that the sliding carriage of a plate is received that receives a wave that is rotatably arranged in the frame of the machine and that the Shaft with controllable drive means and Positioning devices is operatively connected.
  • the wave of one slidable car included in the base frame of the Machine is arranged, the sliding carriage with Drive and control devices are operatively connected.
  • this plate has guide rails for the Sled on as well as a drive spindle with a controllable servo motor is connected, the Drive spindle is operatively connected to a nut that is firmly arranged on the sled.
  • the plate opposite the machine frame, it is provided that the shaft rises from the plate, whereby Receiving devices and rotating devices with the shaft connect the base frame of the machine, furthermore, a Device for adjusting the pivoting movement of the Shaft provided.
  • a controllable reduction gear provided by the Base frame of the machine is included; on the shaft a gear is arranged, the reduction gear using a pinion with the gear wheel of the shaft connected is.
  • Another advantage of the invention is that the bending processes are easier to carry out, even if it is very complex and requiring a lot of space Bending processes, due to the reduced Cross dimensions of the machine and the possible Swiveling movement of the bending head.
  • the direct use of the bending head as Manipulation device of the workpiece makes it possible to significantly increase the efficiency of the bending machine. So it is, e.g. possible from the bending arm of the bending head assumable positions for taking out with the Workpiece in the work area of others Processing facilities such as e.g. Drilling equipment, Chamfering devices, thread cutting devices, Markers, feeders for nuts or To arrive at loading or unloading stations.
  • Processing facilities such as e.g. Drilling equipment, Chamfering devices, thread cutting devices, Markers, feeders for nuts or To arrive at loading or unloading stations.
  • FIGS. 1, 2 and 3 Assemblies of the total marked with 1 Bending machine can be removed.
  • a base frame 2 which consists essentially of a elongated prismatic body, points in Cross-section in an essentially L-shaped shape and lies on one side 3 of the L-shaped body on the floor, whereas the second side 4 of the body is vertically upwards is directed.
  • the two ends of the elongated prismatic body of the Machine frame form a front part (arrow F) and a rear part (arrow R), i.e. one forward directed part, e.g. one looking backwards Part of the machine.
  • a plate 5 e.g. a rectangular plate, is provided on the top of the machine frame 2.
  • a pin 6 with a vertical axis in the rear part the machine frame 2 is provided, connects the Plate 5 with the base frame 2.
  • Rails 7 provided with 8 skids Operational connection are on the underside of the plate 5 are arranged.
  • the plate 5 is arranged pivotably about the pin 6. This means that the plate 5 from a position in which it congruent with the longitudinal extension of the base frame 2 is, can be pivoted sideways to the base frame. There are elastic return devices (not shown) provided that the carriage 5 always in its starting position lead back.
  • a pair of pliers for gripping and aligning the workpieces in Shape of bars or tubes is with 10 designated and arranged on the carriage that on the plate 5th is arranged.
  • Tensioning devices, not shown, of the tongs 10 define an axis 11, against which the straight Workpiece that is to be bent later undergo is aligned.
  • the pliers 10 are in the longitudinal direction with the plate 5 connected, e.g. about guides (not shown) that are arranged parallel to the axis 11 of the pliers 10.
  • the servomotors 12 and 13 allow the angular position of the Pliers 10 to adjust the axis 11 (arrow Z), as well as the Control the feed of the carriage on the plate (arrow X).
  • a Carriage 20 arranged at the front of the machine frame 2 .
  • the carriage 20 has e.g. L-shaped gel shape, one Sidewall 21 is approximately parallel to the axis 11 of the pliers 10 aligned.
  • a second wall 22 is with a plate 25 operatively connected to the machine frame 2 opposite.
  • Guide rails (not shown) for the carriage 22 are provided on the plate 25 and transverse to the axis 11 of the Pliers 10 arranged and set an axis 30 for displacement of the slide 20 (arrow T).
  • a shaft 35 extends from the surface 34 that the Plate 25 of the frame is opposite to the axis 11 of the pliers 10.
  • the axis 36 of the shaft 35 defines a pivot axis for plate 25 (arrow Q).
  • the shaft 35 is largely inside the Machine frame 2, through the vertical wall 4th is arranged.
  • Machine elements 40, 41 for storage and implementation a swiveling movement e.g. Roller bearings or plain bearings, are connected to the shaft 35 and in the body of the Base frame 2 housed.
  • a controlled reduction gear 45 is inside the Machine frame 2 arranged and with the shaft 35 connected.
  • the bending head 50 has a pivotable arm 51 (Arrow Y) and this arm can be controlled by one (not shown) pins are pivoted. This cone is arranged perpendicular to the axis 11 of the collet 10. Of the Cone sets an axis 52 for carrying out the Bending movement in machine 1 fixed. Known Matrices 54 are stored on the bending pin.
  • a carriage 53 for clamping the workpiece, which is the shape a rod or pipe that is in progress is located on the arm 51.
  • a second carriage 56 which is provided with castors, is slidably mounted on an arm 57, the arm 57 on the slide 20 transversely to the axis 11 of the collet 10 arranged.
  • the carriage 20 can be U-shaped or Have a T-shape, it is sufficient that the carriage with sufficient rigidity to perform a Bending process is formed and a connecting surface to the plate 25, which is transverse to the axis 11 of the Collet 10 is arranged. Furthermore, one or more Brackets for one or more bending heads 50 provided with its axis 52 perpendicular to the axis 11th the pliers 10 are arranged.
  • the carriage 20 thanks to the Plate 25, pivoted about the axis 36 (arrow Q) and can accommodate several processing units, which on Scope of the carriage body 20 are arranged.
  • these units with the Axis 11 of the collet 10 brought into alignment by one Machining the workpiece in the form of a bar or a To enable pipe.
  • a slide designed in this way can accommodate a bending head at the end of a first arm of the U-shaped structure and a finishing unit on the second arm of the U-shaped structure.
  • the slide 20 can be moved transversely to the axis 11 of the pliers 10 relative to the machine frame 2.
  • the components 40, 41 for mounting and rotating the shaft 35, the plate 25 and the reduction gear 45 are picked up by a carriage that is movable from the Base frame is recorded and controlled, under providence is displaceable from known control devices.
  • the movable carriage of the plate 25 is with guides (not shown) connected, these guides are connected to the Base frame 2 connected and transverse to the axis 11 of the Collet 10 arranged.
  • the drive and control devices of the servomotors 12, 13, 31, 45 for driving around the axes 11, 30, 35, 52 of the Machine 1 are housed in a control cabinet 60, in the machine frame 2 at the rear part is arranged.
  • the cabinet 60 is inside the Recess through the L-shaped shape of the Machine frame 2 is arranged, whereby the Front of the machine frame near the Sledge 20 remains free and accessible.
  • the drive and control devices are with one known NC unit (not shown) equipped.
  • Known transducers that are various drive devices of the machine 1 are arranged, form a feedback of the control signals to the NC unit.
  • the bending head 50 as Manipulator during a straight removal process Workpiece 71 in the form of a rod, a profile or a pipe from a storage station 70 is used and the bending head is also released when a bent Workpiece 81 delivers this to an unloading station 80.
  • Opening 91 is made with the workpiece 71 by a fork the loading station 70 is carried, brought into alignment.
  • the carriage 20 to is moved (arrow 92) to align the grooved surface of the die 54, with respect to workpiece 71.
  • the carriage 20 is then clockwise (arrow 100) rotated and moved until the deformed workpiece 81 a Unloading station 80, which is designed accordingly, reached.
  • the carriage then moves back (arrow 101) 53 to release the workpiece 81.
  • the plate 25 is then pivoted in Clockwise, causing the workpiece to leak 81 leads out of the recess of the die 54 and then there is a return (arrow 102) of the slide 20, the is now free to be moved into a position in which again picked up a workpiece from the loading station can be.
  • the carriage 20 advantageously moves this deformed workpiece 81 and conveys it to one or to several additional processing stations. These stations to carry out additional processing Drilling, chamfering or marking processes and are in one Space provided by the deformed workpiece 81, the is stretched in the bending head 50 of the carriage 20, accessible is.
EP98104916A 1997-03-21 1998-03-18 Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés Expired - Lifetime EP0872292B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI970644 1997-03-21
IT97MI000644A IT1290141B1 (it) 1997-03-21 1997-03-21 Macchina per curvare materiale filiforme come tubi barre o profilati

Publications (3)

Publication Number Publication Date
EP0872292A2 true EP0872292A2 (fr) 1998-10-21
EP0872292A3 EP0872292A3 (fr) 1998-12-23
EP0872292B1 EP0872292B1 (fr) 2001-06-06

Family

ID=11376530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104916A Expired - Lifetime EP0872292B1 (fr) 1997-03-21 1998-03-18 Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés

Country Status (8)

Country Link
US (1) US5927126A (fr)
EP (1) EP0872292B1 (fr)
JP (1) JP3538538B2 (fr)
KR (1) KR100320011B1 (fr)
BR (1) BR9803292A (fr)
DE (1) DE59800814D1 (fr)
ES (1) ES2157622T3 (fr)
IT (1) IT1290141B1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1350578A1 (fr) * 2002-04-03 2003-10-08 Trumpf Rohrtechnik GmbH + Co. KG Machine de pliage des pièces en forme de barre et/ou tige, en particulier des tubes
EP1350577A1 (fr) * 2002-04-03 2003-10-08 Trumpf Pulzer GmbH + Co. KG Machine de pliage des pièces en forme de barre ou tige, en particulier des tubes
ITMI20091279A1 (it) * 2009-07-20 2011-01-21 Crippa Spa Macchina curvatrice a curvature multiple di tubi, barre, profili e similari.
DE102009038384A1 (de) * 2009-08-24 2011-03-03 Tracto-Technik Gmbh & Co. Kg Vorrichtung zum Biegen länglicher Werkstücke
CN102151729A (zh) * 2010-12-09 2011-08-17 中山市奥美森工业有限公司 长u弯管机的折弯装置的升降定位机构
ITCO20120010A1 (it) * 2012-03-13 2013-09-14 Bertini Flii S N C Macchina curva tubi
CN105215105A (zh) * 2015-11-03 2016-01-06 安徽天宇金属股份有限公司 高精度u形抱箍的成型装置
WO2020099085A1 (fr) 2018-11-16 2020-05-22 Wafios Aktiengesellschaft Dispositif de cintrage de pièces en forme de barre

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE246560T1 (de) * 2001-01-30 2003-08-15 Blm Spa Maschine zum biegen von strangförmigem material, wie rohren, stangen, profilen oder metalldraht
EP1291094B1 (fr) * 2001-10-02 2003-03-26 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Dispositif et procédé pour le cintrage à traction
US7152983B2 (en) * 2003-03-06 2006-12-26 3M Innovative Properties Company Lamina comprising cube corner elements and retroreflective sheeting
JP4591908B2 (ja) * 2003-12-15 2010-12-01 臼井国際産業株式会社 パイプの曲げ加工装置
IT1401361B1 (it) * 2010-06-10 2013-07-18 Blm Spa Macchina curvatubi con sistema di caricamento automatico e metodo per il caricamento automatico di tubi sulla testa di curvatura di una macchina curvatubi.
CN102327936A (zh) * 2011-06-10 2012-01-25 苏州九方焊割科技有限公司 一种螺旋升降机构
MY175339A (en) 2011-08-29 2020-06-19 Valinge Flooring Tech Ab Mechanical locking system for floor panels
US10150154B2 (en) 2013-11-14 2018-12-11 Robert Kyle Hughes, JR. Tube bending machine with reversible clamp assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527394A1 (de) * 1963-06-14 1969-12-18 Claude Ragache Universalbiegemaschine
US4485658A (en) * 1983-05-31 1984-12-04 Stewart A K Carriage assembly for a tube bending machine
EP0417703A2 (fr) * 1989-09-12 1991-03-20 BLM S.p.A. Procédé de réalisation d'opérations de travaux d'usinages additionnelles aux pièces de travail en forme de barres et machines pour l'application de procédé
US5010758A (en) * 1984-03-23 1991-04-30 Chiyoda Kogyo Co., Ltd. Bending machine
EP0446819A2 (fr) * 1990-03-13 1991-09-18 Mewag Maschinenfabrik Ag Cintreuse pour tubes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339391A (en) * 1964-12-04 1967-09-05 Ben C Kowalski Stretch bending machine
US4662204A (en) * 1985-01-17 1987-05-05 Usui Kokusai Sangyo Kabushiki Kaisha Apparatus for automatically bending metallic tubes
DE3618701A1 (de) * 1986-06-04 1987-12-10 Spaeth Gmbh & Co Kg Stahlbau B Verfahren und vorrichtung zum kaltumformen von profilen aus eisen- und nichteisenmetallen
FR2657546B1 (fr) * 1990-01-26 1992-05-22 Eaton Leonard Picot Sa Machine a cintrer les tubes a deux tetes de cintrage.
IT1251934B (it) * 1991-10-16 1995-05-27 Macchine Curvatubi Crippa Agos Macchina curvatubi polifunzionale

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527394A1 (de) * 1963-06-14 1969-12-18 Claude Ragache Universalbiegemaschine
US4485658A (en) * 1983-05-31 1984-12-04 Stewart A K Carriage assembly for a tube bending machine
US5010758A (en) * 1984-03-23 1991-04-30 Chiyoda Kogyo Co., Ltd. Bending machine
EP0417703A2 (fr) * 1989-09-12 1991-03-20 BLM S.p.A. Procédé de réalisation d'opérations de travaux d'usinages additionnelles aux pièces de travail en forme de barres et machines pour l'application de procédé
EP0446819A2 (fr) * 1990-03-13 1991-09-18 Mewag Maschinenfabrik Ag Cintreuse pour tubes

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1350578A1 (fr) * 2002-04-03 2003-10-08 Trumpf Rohrtechnik GmbH + Co. KG Machine de pliage des pièces en forme de barre et/ou tige, en particulier des tubes
EP1350577A1 (fr) * 2002-04-03 2003-10-08 Trumpf Pulzer GmbH + Co. KG Machine de pliage des pièces en forme de barre ou tige, en particulier des tubes
ITMI20091279A1 (it) * 2009-07-20 2011-01-21 Crippa Spa Macchina curvatrice a curvature multiple di tubi, barre, profili e similari.
DE102009038384A1 (de) * 2009-08-24 2011-03-03 Tracto-Technik Gmbh & Co. Kg Vorrichtung zum Biegen länglicher Werkstücke
CN102151729A (zh) * 2010-12-09 2011-08-17 中山市奥美森工业有限公司 长u弯管机的折弯装置的升降定位机构
CN102151729B (zh) * 2010-12-09 2013-05-01 中山市奥美森工业有限公司 长u弯管机的折弯装置的升降定位机构
ITCO20120010A1 (it) * 2012-03-13 2013-09-14 Bertini Flii S N C Macchina curva tubi
CN105215105A (zh) * 2015-11-03 2016-01-06 安徽天宇金属股份有限公司 高精度u形抱箍的成型装置
CN105215105B (zh) * 2015-11-03 2017-06-27 安徽天宇金属股份有限公司 高精度u形抱箍的成型装置
WO2020099085A1 (fr) 2018-11-16 2020-05-22 Wafios Aktiengesellschaft Dispositif de cintrage de pièces en forme de barre

Also Published As

Publication number Publication date
US5927126A (en) 1999-07-27
KR19980080673A (ko) 1998-11-25
EP0872292A3 (fr) 1998-12-23
JP3538538B2 (ja) 2004-06-14
DE59800814D1 (de) 2001-07-12
IT1290141B1 (it) 1998-10-19
ES2157622T3 (es) 2001-08-16
JPH1190537A (ja) 1999-04-06
EP0872292B1 (fr) 2001-06-06
ITMI970644A1 (it) 1998-09-21
KR100320011B1 (ko) 2002-09-17
BR9803292A (pt) 1999-09-28

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