New! View global litigation for patent families

EP2014382A1 - Tube bending machine - Google Patents

Tube bending machine

Info

Publication number
EP2014382A1
EP2014382A1 EP20080011762 EP08011762A EP2014382A1 EP 2014382 A1 EP2014382 A1 EP 2014382A1 EP 20080011762 EP20080011762 EP 20080011762 EP 08011762 A EP08011762 A EP 08011762A EP 2014382 A1 EP2014382 A1 EP 2014382A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
tube
bending
device
machine
positioning
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
EP20080011762
Other languages
German (de)
French (fr)
Other versions
EP2014382B1 (en )
Inventor
Alessandro Pace
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.)
CRIPPA SpA
Original Assignee
CRIPPA 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

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/02Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/12Bending rods, profiles, or tubes with programme control

Abstract

The invention belongs in the field of machines for bending tubes and refers in particular to a machine (1) comprising a supporting base (2), a positioning device (3) for the tube (7) to be bent and a bending device (4) for said tube (7) characterised by having devices capable of rotating through up to 360° in order to bend said tube (7) in various bending planes, including starting alternatively from either end of said tube or, as necessary, at an intermediate part.

Description

    OBJECT OF THE INVENTION
  • [0001]
    The present invention relates to a machine for bending tubes of any length (short, medium or long) without having to withdraw the tube to be bent, in order to effect curves with a different radius and/or in different bending planes.
  • [0002]
    The machine which is the subject of the present invention is also suitable for bending tubes designated as hybrid, that is to say tubes formed from lengths of metal and lengths of rubber or other non-metallic material.
  • THE STATE OF THE ART
  • [0003]
    Tube-bending machines are known which bend tubes by setting about the bending starting from one end of the tube to be bent and keeping the other end of said tube in the positioning device. Tubes bent with said known machines have the disadvantage of oscillating and/or undergoing deformation subsequently to bending because they are left lacking adequate support, in a so-called overhanging position, that is to say restrained at a single point and subjected to the force of gravity.
  • [0004]
    In relation to the bending of tubes generally designated hybrid, that is to say tubes formed from lengths of metal and lengths of rubber or other non-metallic material, the known tube-bending machines have great difficulty in bending said hybrid tubes, because said machines set about bending the tube starting from just one end of said tube, and the bending devices can easily touch the non-metallic parts of the tube, with the risk of damaging it.
  • [0005]
    Among tube-bending machines, an orbital machine for bending long tubes is also known, described in document US 7.093.475 . Said machine includes a bending head mounted on a U-shaped arm which rotates around the horizontal axis of the tube to be bent. The machine described in said document has the disadvantage of being able to manipulate tubes of small size because the weight of the head mounted on the above-mentioned U-shaped arm must be small for structural reasons relating to the shape of said arm. Furthermore, the length of the tubes to be bent is anyway limited by the breadth of the U which constitutes the above-mentioned arm, the overall dimensions of the bent tube being limited by the breadth of the U formed by the above-mentioned arm.
  • [0006]
    The machine described in document US 7.093.475 is capable of bending tubes only in one plane of curvature, having therefore a limited productive capacity.
  • DESCRIPTION OF THE INVENTION
  • [0007]
    An object of the present invention is to create a machine for bending metal or hybrid tubes, that is to say tubes formed from lengths of metal and lengths of rubber or other non-metallic material, of any size and length, with characteristics which are such as to be able to overcome the disadvantages mentioned with reference to the known art.
  • [0008]
    These and other objects are achieved by means of a tube-bending machine characterised by comprising a positioning arm equipped with means for rotating through up to 360° around the central axis of the tube to be bent and one or more locking devices suitable for rotating through up to 360° around one or more fulcrums.
  • [0009]
    This and other characteristics will become clearer from the following description of some embodiments illustrated, purely by way of non-limiting example in the attached drawings in which:
    • Figure 1 shows a perspective view of the whole of a tube-bending machine which is the subject of the present invention with a positioning device suitable for rotating through up to 360°;
    • Figure 2 shows the machine of fig. 1 highlighting the locking device and the means suitable for rotating said device up to 360° around fulcrum (F);
    • Figure 3 shows the machine of fig. 1 highlighting the two locking devices and the means suitable for rotating said devices up to 360° around fulcrums (F) and (G);
    • Figure 4 shows the machine of fig. i with a second bending device.
  • [0010]
    With reference to Figure 1, no. (1) indicates a machine for bending tubes, consisting of a supporting base (2) which supports a positioning device (3) for the tube to be bent (7) of wholly metallic or hybrid type, that is to say formed from lengths of metal and lengths of rubber or other non-metallic material, by one or more devices (4) for bending the tube (7) to be bent. Said positioning device (3) consists of a turret (5) and a positioning arm (6).
  • [0011]
    Said machine also includes means known to persons skilled in the art for the purpose of making the positioning device (3), by means of the translation of turret (5) and/or device (4), take up mutual positions for the purpose of allowing said device (4) to be moved, according to methods known to persons skilled in the art, for the purpose of bending said tube (7) on the basis of the preset work programme.
  • [0012]
    Said Figure 1 also shows the positioning device (3) provided with means (8) for rotating the positioning arm (6) through up to 360° around the central axis (Y) of the tube (7) to be bent, so as to be able advantageously to bend said tube (7), particularly of hybrid type, in various bending planes having in common said central axis (Y), having among other things the possibility of locking the tube in the intermediate area and being able to start indifferently from either of its ends, thus overcoming the disadvantages of the known machines.
  • [0013]
    Figure 2 shows the machine of fig. 1, highlighting the positioning arm (6) equipped with a locking device (9) for the tube (7) to be bent. Said locking device (9) is provided with means (10) for rotating through up to 360° around a fulcrum (F) so as to rotate said tube (7) for the purpose of being able to bend either end of said tube (7) alternatively by means of device (4) on the basis of a preset work programme.
  • [0014]
    Figure 3 shows the machine of figure 1, demonstrating another embodiment according to which the positioning arm (6), equipped with two locking devices (12) and (13) for the tube (7) to be bent, is provided with means (10) and (11) for rotating through up to 360° around fulcrum (F) and fulcrum (G) so as to rotate said tube (7) for the purpose of being able to bend either end of said tube (7) alternatively and/or an intermediate part of said tube by means of device (4) on the basis of a preset work programme.
  • [0015]
    Figure 4 shows the machine of fig. 1, equipped with a further bending device (14) capable of moving and being moved by known movement means. Equipping machine 1 with further possibilities of bending enables a considerable increase in the possibilities of bending said tube (7).
  • [0016]
    Machine 1 can be susceptible of numerous variations particularly as regards the positioning of the elements without thereby departing from the protective compass of the claims set out below.

Claims (4)

  1. a tube-bending machine (1), comprising:
    - a supporting base (2);
    - a positioning device (3) for the tube (7) to be bent,
    - at least one device (4) for bending the tube (7) to be bent,
    - means for making the positioning device (3) and the device (4) for bending said tube (7) take up mutual positions for bending said tube (7) characterised in that said positioning device (3) comprises a turret (5) and a positioning arm (6) equipped with means (8) suitable for rotating said positioning arm (6) through 360° around the central axis (Y) of the tube (7) to be bent, in order to position said tube (7) for the purpose of being bent by means of said device (4) in various bending planes;
  2. a tube-bending machine (1) according to claim 1 characterised in that said positioning arm (6) is equipped with at least one locking device (9) for the tube (7) to be bent equipped with means (10) suitable for rotating said locking device (9) through up to 360° around a fulcrum (F) in order to rotate said tube (7) for the purpose of bending either end of the tube (7) alternatively by means of device (4);
  3. a tube-bending machine (1) according to claim 1 characterised in that said positioning arm (6) is equipped with two locking devices (12) and (13) for the tube (7) to be bent and means (10) and (11) suitable for rotating said devices through up to 360° respectively around a fulcrum (F) and a fulcrum (G) in order to rotate said tube (7) for the purpose of bending either end of tube (7) alternatively by means of device (4);
  4. a tube-bending machine (1) according to one of the preceding claims characterised in that it comprises at least one second bending device (14).
EP20080011762 2007-07-09 2008-06-30 Tube bending machine Active EP2014382B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITMI20071355 2007-07-09

Publications (2)

Publication Number Publication Date
EP2014382A1 true true EP2014382A1 (en) 2009-01-14
EP2014382B1 EP2014382B1 (en) 2010-10-27

Family

ID=39929889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080011762 Active EP2014382B1 (en) 2007-07-09 2008-06-30 Tube bending machine

Country Status (3)

Country Link
US (1) US20090173127A1 (en)
EP (1) EP2014382B1 (en)
DE (1) DE602008003160D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014185531A1 (en) * 2013-05-17 2014-11-20 株式会社オプトン Bending processing system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001212624A (en) * 2000-01-31 2001-08-07 Opton Co Ltd Bending machine
US6434995B1 (en) * 1999-10-15 2002-08-20 Usui Kokusai Sangyo Kaisha Limited Method of bending small diameter metal pipe and its apparatus
US20050126245A1 (en) * 2003-12-15 2005-06-16 Usui Kokusai Sangyo Kaisha Limited Bending device for tube
JP2006116604A (en) * 2004-09-27 2006-05-11 Opton Co Ltd Bending device
US7093475B2 (en) 2003-09-12 2006-08-22 Silfax Orbital machine for bending tubes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004048036A1 (en) * 2004-09-28 2006-04-06 Ras Reinhardt Maschinenbau Gmbh bender

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434995B1 (en) * 1999-10-15 2002-08-20 Usui Kokusai Sangyo Kaisha Limited Method of bending small diameter metal pipe and its apparatus
JP2001212624A (en) * 2000-01-31 2001-08-07 Opton Co Ltd Bending machine
US7093475B2 (en) 2003-09-12 2006-08-22 Silfax Orbital machine for bending tubes
US20050126245A1 (en) * 2003-12-15 2005-06-16 Usui Kokusai Sangyo Kaisha Limited Bending device for tube
JP2006116604A (en) * 2004-09-27 2006-05-11 Opton Co Ltd Bending device

Also Published As

Publication number Publication date Type
DE602008003160D1 (en) 2010-12-09 grant
EP2014382B1 (en) 2010-10-27 grant
US20090173127A1 (en) 2009-07-09 application

Similar Documents

Publication Publication Date Title
US4945747A (en) Apparatus for bending elongated materials in any direction
US1497107A (en) Device for straightening bows of motor vehicle tops
US4991422A (en) Plate bending machine
US4805436A (en) Apparatus for bending metal tube of small diameter
US20100229602A1 (en) Glass Alignment for High Temperature Processes
CN102729245A (en) Manipulator
US20110005633A1 (en) Wire forming apparatus
US1873939A (en) Tube bending machine
CN101564742A (en) Tube bending machine and clamping mechanism thereof
EP1772204A1 (en) "Bending press for pieces of sheet metal with integrated manipulator in a rear positioning device"
EP1535675A1 (en) Machine for straightening, bending and cutting of iron concrete rods
JP2013217829A (en) Bending test device and bending test method using the same
US7721582B2 (en) Bending machine for rod-shaped workpieces made from wire, tubular material or the like
EP2184119A2 (en) Forming apparatus
EP2283963A1 (en) Manipulator of low inertia for laser cutting machines for flat sheet metals
KR100892059B1 (en) Bending machine
CN201413954Y (en) Manual line bending device
US20120024034A1 (en) Method to Improve Geometrical Accuracy of an Incrementally Formed Workpiece
CN101983790A (en) Pipe bender for spiral bend pipe
JP2001150029A (en) Device for reforming shaft bend
CN203245540U (en) Sheet straight reelpipe welding device
US20050268681A1 (en) Dual-directional pipe-bending machine
US2312121A (en) Tube bending jig
US8967015B2 (en) Device for moving and positioning a member in space
JP2002263756A (en) Roll hemming method

Legal Events

Date Code Title Description
17P Request for examination filed

Effective date: 20080702

AK Designated contracting states:

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent to

Extension state: AL BA MK RS

AKX Payment of designation fees

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

AK Designated contracting states:

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602008003160

Country of ref document: DE

Date of ref document: 20101209

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20101027

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20101027

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110127

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110127

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110228

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110227

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110128

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110207

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

26N No opposition filed

Effective date: 20110728

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008003160

Country of ref document: DE

Effective date: 20110728

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120229

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120630

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120630

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120630

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101027

PGFP Postgrant: annual fees paid to national office

Ref country code: DE

Payment date: 20170629

Year of fee payment: 10