EP0445081A2 - Rohrbiegemaschine mit freitragendem Biegekopf mit austauschbarem Mehrzweckwerkzeug sowie programmierbar mit Hilfe einer Computereinheit - Google Patents

Rohrbiegemaschine mit freitragendem Biegekopf mit austauschbarem Mehrzweckwerkzeug sowie programmierbar mit Hilfe einer Computereinheit Download PDF

Info

Publication number
EP0445081A2
EP0445081A2 EP91830028A EP91830028A EP0445081A2 EP 0445081 A2 EP0445081 A2 EP 0445081A2 EP 91830028 A EP91830028 A EP 91830028A EP 91830028 A EP91830028 A EP 91830028A EP 0445081 A2 EP0445081 A2 EP 0445081A2
Authority
EP
European Patent Office
Prior art keywords
machine
fact
pulley
above mentioned
bending
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.)
Withdrawn
Application number
EP91830028A
Other languages
English (en)
French (fr)
Other versions
EP0445081A3 (en
Inventor
Alessandro Caporusso
Mario Caporusso
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.)
CML Costruzioni Meccaniche Liri SRL
Original Assignee
CML Costruzioni Meccaniche Liri SRL
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 CML Costruzioni Meccaniche Liri SRL filed Critical CML Costruzioni Meccaniche Liri SRL
Publication of EP0445081A2 publication Critical patent/EP0445081A2/de
Publication of EP0445081A3 publication Critical patent/EP0445081A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/12—Bending rods, profiles, or tubes with programme control

Definitions

  • the instant invention has as its purpose a pipe bending machine with an interchangeable multifunction tool which is supported by a cantilevered bending head, thus being able to perform 180° bendings in all directions.
  • the aim of the invention is to create a machine of the above mentioned kind, being different from the existing machines for its greater versatility in use, for its more accurate performance and quickness in bending the pipes, with a wide range of pipes diameters, and being also able to produce bendings in all directions, up to 180°.
  • a pipe bending machine having a cantilevered bending head, wherein a race pulley is driven by an electric motor with speed reducer, and having also an engaging tooth which performs the bending of the pipe in cooperation with a pressure pad having an adjustable position, which can be read on a graduated scale with a vernier scale or even, alternately, in association with a reading element giving the exact position of the above mentioned pressure pad on a display being part of an unit being able to arrange the preogrammed performance of the whole operating cycle of the above mentioned machine.
  • the above mentioned quick junction system includes also a hexagonal rod, on which the bending pulley is set up in an interchangeable manner, a bar or diametral key carried by a boss being integral with the above mentioned hexagonal rod, a way for the above mentioned diametral bar, being opened in a keg forming an unitary part with the speed reducer's output gear, and four anti-withdrawal screws, whose purpose is to fasten the boss and the hexagonal bar on the above mentioned keg; the shearing and torsional stresses coming from the gear are absorbed by the above mentioned diametral bar.
  • the race pulley is part of a series including several diameters, and is set up the diametral pin, and is kept in position by a cap, being in turn secured by an axial screw.
  • the number 1 indicates as a whole the pipe bending machine, having inside a series of speed reducing gears 2 being powered by the motor 3.
  • the inside members of the machine are not described in detail, since they are not included in the instant invention, and are protected by another patent issued to the same applicant firm.
  • the final gear 4 of the speed reducing unit, revolving around the pivot H, is connected with a race pulley 5 having the bending tooth 6 and a marginal notch 7.
  • the sliding shoe 9 installed on the threaded shaft 10 being turned by the crank 11.
  • the above mentioned shoe 9 has a pivot 12 on which the jaw 13 having the pad 14 is installed; the pad 14 is interchangeable by means of the dovetail coupling 15, or another suitable system.
  • the position of the pad 14 may be controlled through the graduatad scale 30 which has also a vernier scale.
  • the pipe to be bent is placed between the bending pulley 5 and the pad 14, which can be placed nearer or farther to or from the pulley 5 by means of the crank 11.
  • the threaded shaft 10 and the crank 11 can be associated with a positions reading unit, as one can better see in the following.
  • the marginal notch 7 being made on the edge of the pulley 5 serves to make the taking of the pipe easier when the bending operation is finished.
  • the bending head including the pulley 5 and the drive gear 4 of the pulley 5 and the drive gear 4 of the same pulley are placed in a bracket 17 made on the lengthened area of the floor 8, and protruding on the side with reference to the machine body.
  • the bending pulley 5 must be replaced in accordance with some well determined sizes of bending pipes diameters; in order to be able to fulfil this operation in a quick and easy way, the invention includes the interchangeability and quick connection system as shown in detail in the figures 4 and 5.
  • the pulley 8 has an hexagonal hole 18 wherein one may introduce a pivot 19, with hexagonal cross section, being integral with the boss 20 carrying the diametral bar 21 and the axial round pivot 22.
  • the final gear of the speed reducer in turn, carries integral a barrel 23 whereinside they did carve the seat 24 for the diametral bar 21, and the axial cylindric hole 25 for the pivot 22.
  • the four screws 26 are there only to hold together the boss 20 and the barrel 23, since the shearing stress and the torsional stress (not to be absorbed by the screws 26) are entirely supported by the diametral bar 21.
  • hexagonal pivot 19 once the race pulley 5 has been disassembled, may be used as a power takeoff for another complementary operating machine.
  • This unit includes a block 31 sliding on the guides 32, parallel to the sides of the machine, and having an arm 34 with an articulated joint 35, thus being able to turn around a vertical axis.
  • the rolling supports 36 can slide;they can be locked with the clamps 37.
  • a stick 38 being hold in the supports 36 and having a series of reference stops 39 sliding on the stick, which can be locked by means of the butterfly holds 40.
  • the reference stops 39 are adjusted in accordance with the different curved to be carried out on the pipe 16. The latter, in its movement to the bending pulley 5, slides on the rolls 36, whereas the articulated arm 34, in turn, can be moved "in feathering" around the pivot 35 in order to perform the direction changes of the pipe.
  • the machine is provided with a feedingp electric panel 41, and is under control by the pedal keyboard 42 with two pedals, to give the controls "ahead” and “backward” to the race pulley 5.
  • All the operation cycle of the machine can be programmed with a computerized card.
  • the exact position of the pad 14 (see also the figures 8 and 9) is shown every moment on the warning panel 43, being protected by the overturning transparent door 44.
  • the above mentioned door 43 has many digital displays indicating all the data concerning the program being performed.
  • the turning of the threaded shaft 10 is controlled by a direct current small motor 45, which by means of the toothed belt 46 causes the turning of the above mentioned shaft.
  • the angular turning of the threaded shaft 10 and therefore the position of the pad 14 is read by a reading element 51 in cooperation with the surveying star 52, with contemporary mention and showing on the panel 43 in an extremely exact way, say one-tenth of a mm. It is clear that, in this case, the scale 30 and the relevant vernier according to the figure 1, are of no use.
  • crank 11 is of alternate use instead of the motor 45, however one must keep in mind that, if the hand movement of the pad 14 by means of the above mentioned crank is not in agreement with the previously established program, the machine is stopped because the computerized unit does not give its consent to start the motor 3.
  • the angular position of the raced pulley 5 in its turning around the H axis is controlled by a position reading device, not being shown in the figure because it is very similar to the one of the figure 9. Also this angular position is programmable on the panel 43, according to the sequence of bends to be made on the pipe 16, and is shown in a bidirectional manner by the relevant display on the panel 43.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP19910830028 1990-03-02 1991-01-31 Pipe bending machine with cantilevered bending head, with interchangeable multifunction tool, and being programmable by means of a computerized unit Withdrawn EP0445081A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT047713A IT9047713A1 (it) 1990-03-02 1990-03-02 Macchina curvatubi provvista di testa di piegatura a sbalzo, con utens ile multi-funzione, e programmabile mediante complesso computerizzato .
IT4771390 1990-03-02

Publications (2)

Publication Number Publication Date
EP0445081A2 true EP0445081A2 (de) 1991-09-04
EP0445081A3 EP0445081A3 (en) 1992-02-12

Family

ID=11262055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910830028 Withdrawn EP0445081A3 (en) 1990-03-02 1991-01-31 Pipe bending machine with cantilevered bending head, with interchangeable multifunction tool, and being programmable by means of a computerized unit

Country Status (2)

Country Link
EP (1) EP0445081A3 (de)
IT (1) IT9047713A1 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327758A (en) * 1993-06-28 1994-07-12 Galan Jose M J Pipe bending machines
DE4329567A1 (de) * 1993-09-02 1995-03-16 Inchaurbe Jose Maria Jav Galan Verbesserungen an Rohrbiegemaschinen
ITRM20080574A1 (it) * 2008-10-28 2010-04-28 Cml Int Spa Macchina curvatubi con trasmissione perfezionata del moto alla matrice
CN101693268B (zh) * 2009-09-30 2011-08-03 张家港市明华机械制造有限公司 便携式弯管机
ITRM20120618A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Macchina modulare, per curvare tubi metallici.
ITRM20120620A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Contromatrice ad inserti, per macchine di curvatura di tubi metallici.
ITRM20120619A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Macchina perfezionata per curvare tubi metallici, sia a destra che a sinistra rispetto alla direzione di introduzione del tubo.
ITRM20130259A1 (it) * 2013-05-02 2014-11-03 Cml Int Spa Macchina curvatrice del tipo a matrice e contromatrice per curvare a destra e a sinistra un pezzo allungato
CN104889209A (zh) * 2015-05-26 2015-09-09 天津万豪科技发展有限公司 一种金属管材折弯机
WO2016157022A1 (en) * 2015-04-02 2016-10-06 Massaro Libero Angelo Multipurpose machine for bending metal tubes, both small and large
CN107470408A (zh) * 2017-08-23 2017-12-15 浙江和良智能装备有限公司 一种单摆臂左右共弯型数控弯管机
CN107913927A (zh) * 2017-09-18 2018-04-17 浙江长兴和良智能装备有限公司 一种弯管机
CN112742923A (zh) * 2020-12-21 2021-05-04 河南质量工程职业学院 一种用于建筑施工的弯管装置及其使用方法
CN113601109A (zh) * 2021-06-30 2021-11-05 北京航星机器制造有限公司 一种扩口式管路的弯制工装、方法及一种管路的成型方法
CN117772872A (zh) * 2024-02-28 2024-03-29 维格斯(上海)流体技术有限公司 一种不锈钢管加工用双头弯管机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844850C (de) * 1951-02-13 1952-07-24 Banning A G J Rohrbiegemaschine
DE2445090A1 (de) * 1973-09-21 1975-04-03 Aerospatiale Rohrbiegemaschine
EP0041432A1 (de) * 1980-05-28 1981-12-09 Société Nouvelle des Cintreuses MINGORI Vorrichtung zum Bearbeiten von Rohren
US4747283A (en) * 1987-08-24 1988-05-31 Teledyne Industries Boosted drive for pressure die of a tube bender
EP0350457A2 (de) * 1988-06-17 1990-01-10 C.M.L. COSTRUZIONI MECCANICHE LIRI S.r.l. Tragbare, handgesteuerte, dreigängige Rohrbiegevorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844850C (de) * 1951-02-13 1952-07-24 Banning A G J Rohrbiegemaschine
DE2445090A1 (de) * 1973-09-21 1975-04-03 Aerospatiale Rohrbiegemaschine
EP0041432A1 (de) * 1980-05-28 1981-12-09 Société Nouvelle des Cintreuses MINGORI Vorrichtung zum Bearbeiten von Rohren
US4747283A (en) * 1987-08-24 1988-05-31 Teledyne Industries Boosted drive for pressure die of a tube bender
EP0350457A2 (de) * 1988-06-17 1990-01-10 C.M.L. COSTRUZIONI MECCANICHE LIRI S.r.l. Tragbare, handgesteuerte, dreigängige Rohrbiegevorrichtung

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327758A (en) * 1993-06-28 1994-07-12 Galan Jose M J Pipe bending machines
DE4329567A1 (de) * 1993-09-02 1995-03-16 Inchaurbe Jose Maria Jav Galan Verbesserungen an Rohrbiegemaschinen
DE4329567C2 (de) * 1993-09-02 1999-01-14 Inchaurbe Jose Maria Jav Galan Rohrbiegemaschine
ITRM20080574A1 (it) * 2008-10-28 2010-04-28 Cml Int Spa Macchina curvatubi con trasmissione perfezionata del moto alla matrice
EP2181780A1 (de) * 2008-10-28 2010-05-05 CML International S.P.A. Biegemaschine für Rohre mit einer verbesserten Übertragung der Bewegung auf das Biegewerkzeug
CN101693268B (zh) * 2009-09-30 2011-08-03 张家港市明华机械制造有限公司 便携式弯管机
US10124385B2 (en) 2012-12-06 2018-11-13 Libero Angelo MASSARO Counter-matrix with inserts for metal pipes bending machines and bending machine with said counter-matrix
ITRM20120619A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Macchina perfezionata per curvare tubi metallici, sia a destra che a sinistra rispetto alla direzione di introduzione del tubo.
WO2014087328A1 (en) * 2012-12-06 2014-06-12 Massaro Libero Angelo Improved metal pipes bending machine, both to the right and to the left with respect to the direction of introduction of the pipe
WO2014087329A1 (en) * 2012-12-06 2014-06-12 Massaro Libero Angelo Counter-matrix with inserts for metal pipes bending machines and bending machine with said counter-matrix
WO2014087327A1 (en) * 2012-12-06 2014-06-12 Massaro Libero Angelo Modular machine, for bending metal pipes
ITRM20120618A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Macchina modulare, per curvare tubi metallici.
ITRM20120620A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Contromatrice ad inserti, per macchine di curvatura di tubi metallici.
US9878361B2 (en) 2013-05-02 2018-01-30 Cml International S.P.A. Die and counter-die type bending machine for right-hand and left-hand bending an elongated piece
ITRM20130259A1 (it) * 2013-05-02 2014-11-03 Cml Int Spa Macchina curvatrice del tipo a matrice e contromatrice per curvare a destra e a sinistra un pezzo allungato
EP2799158A1 (de) * 2013-05-02 2014-11-05 CML International S.p.A. Biegemaschine mit Stempel und Gegenhalterstempel zum rechts und links Biegen eines länglichen Körpers
KR20140131282A (ko) * 2013-05-02 2014-11-12 씨엠엘 인터내셔널 에스. 피. 에이. 긴 가공물을 우측 및 좌측으로 굽힘 가공하기 위한 금형 및 상대 금형 방식의 벤딩 머신
KR101636684B1 (ko) 2013-05-02 2016-07-07 씨엠엘 인터내셔널 에스. 피. 에이. 긴 가공물을 우측 및 좌측으로 굽힘 가공하기 위한 금형 및 상대 금형 방식의 벤딩 머신
WO2016157022A1 (en) * 2015-04-02 2016-10-06 Massaro Libero Angelo Multipurpose machine for bending metal tubes, both small and large
CN104889209A (zh) * 2015-05-26 2015-09-09 天津万豪科技发展有限公司 一种金属管材折弯机
CN107470408A (zh) * 2017-08-23 2017-12-15 浙江和良智能装备有限公司 一种单摆臂左右共弯型数控弯管机
CN107470408B (zh) * 2017-08-23 2023-08-25 浙江和良智能装备有限公司 一种单摆臂左右共弯型数控弯管机
CN107913927A (zh) * 2017-09-18 2018-04-17 浙江长兴和良智能装备有限公司 一种弯管机
CN107913927B (zh) * 2017-09-18 2024-05-03 浙江长兴和良智能装备有限公司 一种弯管机
CN112742923A (zh) * 2020-12-21 2021-05-04 河南质量工程职业学院 一种用于建筑施工的弯管装置及其使用方法
CN113601109A (zh) * 2021-06-30 2021-11-05 北京航星机器制造有限公司 一种扩口式管路的弯制工装、方法及一种管路的成型方法
CN117772872A (zh) * 2024-02-28 2024-03-29 维格斯(上海)流体技术有限公司 一种不锈钢管加工用双头弯管机
CN117772872B (zh) * 2024-02-28 2024-05-07 维格斯(上海)流体技术有限公司 一种不锈钢管加工用双头弯管机

Also Published As

Publication number Publication date
IT9047713A0 (it) 1990-03-02
EP0445081A3 (en) 1992-02-12
IT9047713A1 (it) 1991-09-03

Similar Documents

Publication Publication Date Title
EP0445081A2 (de) Rohrbiegemaschine mit freitragendem Biegekopf mit austauschbarem Mehrzweckwerkzeug sowie programmierbar mit Hilfe einer Computereinheit
US3826119A (en) Numerical control system for press brakes and the like
US6173598B1 (en) Modular multipurpose bending machine and its linear positioning system
US6079246A (en) Universal machine for bending pipes or section bars to both fixed and variable curvatures
EP0198984B1 (de) Biegevorrichtung
FR2461974A1 (fr) Procede et montage pour l'etablissement et/ou la modification du programme dans des machines a commande numerique
US4674928A (en) Milling machine controller
JPH03124322A (ja) パイプ曲げ装置
US3285048A (en) Machines for bending pipes, rods and bars
EP0079137A1 (de) Numerische Steuerung mit Rechner zur Metallformung
US6095730A (en) Table-top type key-seater
US6604896B2 (en) Devices for exactly positioning a workpiece and a tool machining the workpiece
US4745732A (en) Packaging machines having chart setting capabilities
EP0614717B1 (de) Schlüsselkopiermaschine
DE29816392U1 (de) Bedieneinheit für eine Steuereinrichtung einer Druckmaschine
CN219541552U (zh) 一种钢筋折弯装置
JP4082007B2 (ja) 電動式曲げ工具
JP3267718B2 (ja) プレスブレーキ
US4696175A (en) Clutch apparatus for spring making machine
CN112959704B (zh) 制管机的管身定位装置、制管机及管身定位方法
CN219401816U (zh) 一种折弯机折弯角度辅助定位机构
CN216911912U (zh) 一种建筑施工钢筋折弯装置
US20030140748A1 (en) Mat cutter with precision stops
KR200202023Y1 (ko) 절곡기의 자동 제어 장치
JPS62183914A (ja) 押曲げ機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR LI LU NL SE

17P Request for examination filed

Effective date: 19920807

17Q First examination report despatched

Effective date: 19930602

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19931001