EP0209876A2 - Machine à cintrer universelle et procédé de cintrage correspondant - Google Patents

Machine à cintrer universelle et procédé de cintrage correspondant Download PDF

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Publication number
EP0209876A2
EP0209876A2 EP86109981A EP86109981A EP0209876A2 EP 0209876 A2 EP0209876 A2 EP 0209876A2 EP 86109981 A EP86109981 A EP 86109981A EP 86109981 A EP86109981 A EP 86109981A EP 0209876 A2 EP0209876 A2 EP 0209876A2
Authority
EP
European Patent Office
Prior art keywords
bending
stock
advanced
bent
cutting
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Withdrawn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
EP86109981A
Other languages
German (de)
English (en)
Other versions
EP0209876A3 (fr
Inventor
Giuliano Ballico
Gerald Hütter
Giorgio Tosolini
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
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 BLM SpA filed Critical BLM SpA
Publication of EP0209876A2 publication Critical patent/EP0209876A2/fr
Publication of EP0209876A3 publication Critical patent/EP0209876A3/fr
Withdrawn legal-status Critical Current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
    • B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/12—Bending rods, profiles, or tubes with program control

Definitions

  • This invention has as object a method and a machine for the production of three dimensional shapeds.
  • This innovation finds a particular and convenient application for the production of shaped metallic elongated parts, preferably, but not necessarily, tubular for the bending orientation in three dimensional directions, that is to say with bends not necessarily placed on the same plane, but made also in other planes.
  • Prior art particularly in the field of bending and shaping machines, includes automatic bending machines acting in a single plane and also machines that are capable of bending in a sucession of different planes, by a sucession of bends, either in a clockwise or counterclockwise direction.
  • the bending in different planes are particulary necessary in the field of small diameter bended pipes (for example metal tubes of copper or aluminium or other metals) to be utilized in the most varied areas, including that of the automobile vehicles.
  • These bending machines use the system of starting from a straight tubular piece and consist of machines more or less mechanized, nnd or automated and or electronically programmable, having means for advancing the tubular piece or billet, means for rotating the tube to take it to a predetermined bending plane, means for bending in a fixed plane, preferably with a clockwise or counterclockwise direction, means to cut the tube to length.
  • Machines of this kind are known as tube bending machines or "pipe benders”, and are made and marketed by several companies specialized in this field, . such as models "CNC PIPE BENDERS” made by CHIODA KOGYO CO. LTD.
  • stirrup machines which bend by a program more or less computerized, in a continuous way with feeding from a feeding reel, the wire to be bent, producing brackets or stirrups that every time have to be cut from the feeding wire.
  • this type of machine however it is possible to make bends in a clockwise or counterclockwise direction, but only in one single bending plane.
  • the purpose of this invention is to produce a machine capable to automatically work not only on a tube in a form of a straight bar as the former machines, but also with feeding from a feeding reel or coil as the latter kind of machines, and at the same time make it possible to be able to make bends in several bending planes, i.e. to be able to produce a three , dimensional part as the former machines and not only in a single bending plane as the latter machines.
  • the present invention solves the problem by the realization of a machine having a bending group attached to and rotating around the tube to be bent, to change the position. of the bending plane.
  • the invention consists of a machine comprising:
  • the bending roller is pressed against the tube to be bent (t) by means of a fluid dynamic piston (2') that is operated by an electro valve (2") which is controlled by the central system program and control command "CNC" (F).
  • the working system consists, after having advanced the tube (t) to the desired entity with the motor (8), in rotating the bending group (D) with the motor ( 5 ) to the desired bending plane, around the axis of the path of the tube (r) bringing the bending nib (2) always on the side where it is desired to start the bend with the pulling piston (2') idle, after which, the bending roller is pressed against the tube on the fixed roller and the bending motor (4) is activated, which with the chain (4') rotates the nib (2) in the desired angle of the bend, and then recalls it to the position as at the start, untightening the grip on the tube, determining the acvancement of the tube of another entity, rotate t.he bending group (D) to the second bending plane and proceed with the cycle up to the end and then command the cutting disk of the cutting device (E) allowing the complete bent part (S) to fall, repeating the cycle to produce another bent part and so on in a continuous automatic succession until the desired number of bent parts is
  • the cutting group has an approaching sliding command that is controlled by the fluid dynamic cylinder with a mixture of oil and air with a respective oil chamber on the stem (6') and air in a counter position (6") respectively controlled by an electro valve and a hydraulic brake (9) acting at the end of the strokes (Fcl, Fco) and at starting of the slow down (Fc2); from a one way valve (10) and from a flow regulator (11); the whole is operated by an auxiliary cylinder (15) with double chamber, oil (15') and air (15") which is controlled by an electro valve of the drawer type (17) with pressured air feeding (12) and discharge ( 1 3).
  • an approaching sliding command that is controlled by the fluid dynamic cylinder with a mixture of oil and air with a respective oil chamber on the stem (6') and air in a counter position (6") respectively controlled by an electro valve and a hydraulic brake (9) acting at the end of the strokes (Fcl, Fco) and at starting of the slow down (Fc2); from a one way valve (10) and from a flow regulator (

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)
EP86109981A 1985-07-22 1986-07-21 Machine à cintrer universelle et procédé de cintrage correspondant Withdrawn EP0209876A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8338385 1985-07-22
IT83383/85A IT1201974B (it) 1985-07-22 1985-07-22 Metodo e macchina per la realizzazione di sagomati spaziali

Publications (2)

Publication Number Publication Date
EP0209876A2 true EP0209876A2 (fr) 1987-01-28
EP0209876A3 EP0209876A3 (fr) 1987-10-07

Family

ID=11321062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109981A Withdrawn EP0209876A3 (fr) 1985-07-22 1986-07-21 Machine à cintrer universelle et procédé de cintrage correspondant

Country Status (3)

Country Link
EP (1) EP0209876A3 (fr)
JP (1) JPH0757379B2 (fr)
IT (1) IT1201974B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258109A1 (fr) * 1986-08-04 1988-03-02 LATOUR & FILS Procédé et machine de pliage de fils métalliques
EP0396489A3 (fr) * 1989-04-11 1991-07-03 Anagnostopoulos, Panaghiotis A. Dispositif de pliage additionnel aux machines de formage de fils pour la création de formes tridimensionnelles
DE4002127A1 (de) * 1990-01-25 1991-08-01 Tracto Technik Biegemaschine
EP0431418A3 (en) * 1989-11-27 1991-08-21 Heinz Ruhl Apparatus for bending rod-shaped radially non-rotatable material
US5461893A (en) * 1993-05-28 1995-10-31 Cnc Corporation Method and apparatus for bending steel rule
US6158264A (en) * 1998-06-03 2000-12-12 Mizukawa; Suehiro Method of working a band blade
WO2001070425A1 (fr) * 2000-03-23 2001-09-27 Ateliers De Constructions Mecaniques Latour Et Fils Machine pour le cambrage de tubes
US7497105B2 (en) 2002-06-05 2009-03-03 Antonios Anagnostopoulos Machine and method for parallel production of similar products, through straightening and bending of wires, wire rods, metal tubes or other material of prismatic cross section
ES2597182R1 (es) * 2015-07-14 2017-02-14 Escapes Jan, S.L. Máquina curvadora de tubo con brazo automático de mecanizado en tres dimensiones controlado por control númerico
WO2021190935A1 (fr) * 2020-03-23 2021-09-30 Schwarze-Robitec Gmbh Machine à plier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189266A (en) * 1989-06-09 1993-02-23 Nissan Motor Co., Ltd. Vehicular exhaust resonance suppression system and sensing means therefore

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373587A (en) * 1966-12-08 1968-03-19 Shubin Vladimir Nikolaevich Automatic tube bending machines
US3493016A (en) * 1967-06-16 1970-02-03 Lear Siegler Inc Wire bending machine
JPS4814656U (fr) * 1971-06-24 1973-02-19
JPS5140297U (fr) * 1974-09-19 1976-03-25
DE2537382A1 (de) * 1975-08-22 1977-03-03 Babcock Ag Vorrichtung zum biegen von rohren
JPS5299962A (en) * 1976-02-19 1977-08-22 Tokyo Shibaura Electric Co Reinforcing bar working machine
US4052878A (en) * 1976-08-02 1977-10-11 Connelly Dennis E Tube bending apparatus
US4161110A (en) * 1977-04-28 1979-07-17 EVG Entwicklungs- und Verwertungs-Gesellschaft mbH. Automatic control device for a bending machine
JPS6044131A (ja) * 1983-08-17 1985-03-09 Toyota Motor Corp パイプベンダ−装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258109A1 (fr) * 1986-08-04 1988-03-02 LATOUR & FILS Procédé et machine de pliage de fils métalliques
EP0396489A3 (fr) * 1989-04-11 1991-07-03 Anagnostopoulos, Panaghiotis A. Dispositif de pliage additionnel aux machines de formage de fils pour la création de formes tridimensionnelles
GR890100232A (el) * 1989-04-11 1991-09-27 Panagiotis Anagnostopoulos Επιπρόσ?ετος κουρμπαδόρος συρματουργικών μηχανών δια κατασκευήν σχημάτων τριών διαστάσεων.
EP0431418A3 (en) * 1989-11-27 1991-08-21 Heinz Ruhl Apparatus for bending rod-shaped radially non-rotatable material
DE4002127A1 (de) * 1990-01-25 1991-08-01 Tracto Technik Biegemaschine
US5461893A (en) * 1993-05-28 1995-10-31 Cnc Corporation Method and apparatus for bending steel rule
US6158264A (en) * 1998-06-03 2000-12-12 Mizukawa; Suehiro Method of working a band blade
WO2001070425A1 (fr) * 2000-03-23 2001-09-27 Ateliers De Constructions Mecaniques Latour Et Fils Machine pour le cambrage de tubes
FR2806647A1 (fr) * 2000-03-23 2001-09-28 Latour Et Fils Machine pour le cambrage de tubes
US6782728B2 (en) 2000-03-23 2004-08-31 Ateliers De Constructions Mecaniques Latour Et Fils Tube bending machine
US7497105B2 (en) 2002-06-05 2009-03-03 Antonios Anagnostopoulos Machine and method for parallel production of similar products, through straightening and bending of wires, wire rods, metal tubes or other material of prismatic cross section
ES2597182R1 (es) * 2015-07-14 2017-02-14 Escapes Jan, S.L. Máquina curvadora de tubo con brazo automático de mecanizado en tres dimensiones controlado por control númerico
WO2021190935A1 (fr) * 2020-03-23 2021-09-30 Schwarze-Robitec Gmbh Machine à plier
CN115335159A (zh) * 2020-03-23 2022-11-11 施瓦策-罗比特克有限公司 折弯机

Also Published As

Publication number Publication date
EP0209876A3 (fr) 1987-10-07
JPH0757379B2 (ja) 1995-06-21
IT8583383A0 (it) 1985-07-22
JPS6257718A (ja) 1987-03-13
IT1201974B (it) 1989-02-02

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Inventor name: TOSOLINI, GIORGIO

Inventor name: HUETTER, GERALD

Inventor name: BALLICO, GIULIANO

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Withdrawal date: 19880408