EP1533052A1 - Machine à cintrer des éléments tubulaires - Google Patents

Machine à cintrer des éléments tubulaires Download PDF

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Publication number
EP1533052A1
EP1533052A1 EP04102788A EP04102788A EP1533052A1 EP 1533052 A1 EP1533052 A1 EP 1533052A1 EP 04102788 A EP04102788 A EP 04102788A EP 04102788 A EP04102788 A EP 04102788A EP 1533052 A1 EP1533052 A1 EP 1533052A1
Authority
EP
European Patent Office
Prior art keywords
bending
tubular element
female die
bending machine
support
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Withdrawn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
EP04102788A
Other languages
German (de)
English (en)
Inventor
Antonio Maria Pedrazzoli
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.)
Pedrazzoli Ibp SpA
Original Assignee
Pedrazzoli Ibp 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 Pedrazzoli Ibp SpA filed Critical Pedrazzoli Ibp SpA
Publication of EP1533052A1 publication Critical patent/EP1533052A1/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Withdrawn legal-status Critical Current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
    • B21D7/024—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
    • B21D7/02—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

Definitions

  • the invention concerns a bending machine particularly suited to be used for bending tubular elements.
  • bending machines with bending heads which substantially comprise a support structure with which a female die and a male die opposing each other are associated.
  • the tubular element to be bent whose longitudinal axis is kept in stable position by guide means against which it rests, is located between the female die and the male die.
  • Suitable power means set the female die and the male die rotating to bend the tubular element.
  • the bending machine generally comprises also a carriage for positioning the tubular element to be bent, which slides on guides obtained in a base.
  • the bending female die As far as the bending female die is concerned, it can be carried out with more than one profile, in such a way as to obtain bends with different radiuses, if necessary even bends with variable radius, by shifting the tubular element through the longitudinal movement of the positioning carriage.
  • the bending machines of the known type described above make it possible to bend the tubular element to the right and to the left and for this purpose they are equipped with two bending heads, one suitable for making the right bend and the other suitable for making the left bend.
  • Each bending head is therefore provided with a corresponding female die and male die and with a slide with guide means suited to keep the longitudinal axis of the tubular element to be bent in stable position with respect to the corresponding bending head and to the corresponding female die and male die.
  • the two bending heads are positioned one on top of the other, in such a way as to reduce the overall dimensions of the machine in plan view, while in other applications the bending heads are coplanar and positioned side by side.
  • This invention aims to overcome the above mentioned drawback by carrying out a bending machine that is capable of making right and left bends with a single bending head.
  • a bending machine for tubular elements which, according to the main claim, comprises a base supporting a bending head in which there is a support structure connected to said base, with which the following elements are associated:
  • the base is provided with longitudinal guides on which a positioning carriage supporting the tubular element to be bent slidingly rests.
  • the bending machine with the single bending head with which it is provided, is capable of making right and left bends on the same tubular element being processed and these bends may have variable or fixed radius.
  • the construction of the bending machine object of the invention is less expensive compared to the bending machines of the known type.
  • the machine object of the invention is smaller than the equivalent machines already known.
  • the bending machine object of the invention requires less maintenance than the equivalent machines already known.
  • FIG. 1 An axonometric view of the bending machine object of the invention is shown in Figure 1, where the bending machine is indicated as a whole by 1.
  • It comprises a base 2 on which there are longitudinal guides 3 on which a positioning carriage 4 slides, said carriage being suited to position a tubular element to be bent T, and it comprises also a bending head indicated as a whole by 5 and positioned at one end of the base.
  • Axis Z preferably belongs to a vertical plane, while axis X belongs to a horizontal plane.
  • the support structure 6 is also associated with guide means of the tubular element to be bent T, indicated as a whole by 10 , defining a longitudinal direction X' lying on the same horizontal plane on which the longitudinal axis X of the tubular element T lies and therefore orthogonal to the rotation axis Z of the bending female die 7 and to the bending arm 9 .
  • the bending female die 7 is also associated with power means, indicated as a whole by 11 , which serve to set it rotating around the above mentioned axis Z , in order to bend the tubular element T .
  • the guide means 10 belong to a support plate 12 resting on an underlying support counterplate 13 that is coupled to said support structure 6 through sliding means 14 and associated with shifting means 15 suited to shift it along the shifting direction Y defined by said sliding means 14 in order to position said guide means 10 on the right side D or on the left side S of said female die 7 and of said longitudinal axis X of said tubular element T to be bent.
  • the guide means 10 comprise two guide slides 16 , 17 of the tubular element T positioned side by side and associated with the support plate 12 , each one of which defines the longitudinal direction X' parallel and coplanar to the longitudinal axis X of the tubular element T to be bent and is provided with shaped grooves 16a , 17a whose profile can be conjugated to the external profile of the tubular element T to be bent.
  • the support plate 12 is also provided with actuator means, indicated as a whole by 18 , suited to shift the guide means 10 along the longitudinal direction X' and comprising an actuator 18a , preferably but not necessarily of the linear fluid-operated type.
  • the actuator can also be electric or operated in another way.
  • the sliding means 14 of the support counterplate 13 along direction Y are constituted by linear guides 20 interposed between the support counterplate 13 and the support structure 6 , while the shifting means of the support counterplate 13 along the linear guides 20 comprise a pinion 21, coupled to the shaft of an electric motor 22 fixed to the support structure 6 , which meshes with a rack 23 belonging to the support counterplate 13.
  • the female die 7 is set rotating by the power means 11 comprising an electric motor 24 fixed to the support structure 6 and a belt 25 forming a closed ring between a first pulley coupled to the motor and not visible in the drawings and a second pulley 26 coupled to the female die 7.
  • the electric motors 22 and 24 are brushless electric motors and the female die 7 presents several profiles, indicated as a whole by 7a , which can be observed in the figures.
  • the movements that take place in the bending head 5 are the rotation of the bending female die 7 around the vertical axis Z , as well as the movements of the guide slides 16 , 17 of the tubular element T on a horizontal plane along two directions X' and Y orthogonal to each other.
  • the left bend Cs on the tubular element T can be obtained by rotating the bending arm 9 and the bending female die 7 in the anticlockwise direction A indicated by the arrow in Figure 5.
  • the possibility to shift the guide means 10 and therefore the guide slides 16 and 17 in the direction X' parallel to the longitudinal axis X of the tubular element to be bent T allows the tubular element to be guided during the bending process.
  • the bending machine object of the invention achieves the goals set.
  • a single bending head, a single female die and a single slide to support the guide means, moving transversally with respect to the longitudinal axis X of the tubular element T it is possible to make left and/or right bends on the tubular element in the same processing cycle.
  • the female dies, the male dies and the guide means can have any shape and profile, according to the profile and size of the tubular element to be bent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP04102788A 2003-11-19 2004-06-17 Machine à cintrer des éléments tubulaires Withdrawn EP1533052A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI20030233 ITVI20030233A1 (it) 2003-11-19 2003-11-19 Macchina curvatrice per elementi tubolari.
ITVI20030233 2003-11-19

Publications (1)

Publication Number Publication Date
EP1533052A1 true EP1533052A1 (fr) 2005-05-25

Family

ID=34430833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04102788A Withdrawn EP1533052A1 (fr) 2003-11-19 2004-06-17 Machine à cintrer des éléments tubulaires

Country Status (2)

Country Link
EP (1) EP1533052A1 (fr)
IT (1) ITVI20030233A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1914021A1 (fr) * 2006-10-21 2008-04-23 Felss Burger GmbH Machine de cintrage de barres et/ou de pièces en forme de tige, en particulier de tubes et outil pour cette machine
FR2915410A1 (fr) * 2007-04-24 2008-10-31 Jaubjaub Consulting Sarl Machine a cintrer un profile selon deux sens de cintrage.
US7919427B2 (en) 2004-01-27 2011-04-05 Showa Denko K.K. Catalyst carrier and fuel cell using the same
EP2308611A1 (fr) * 2009-09-26 2011-04-13 Tracto-Technik GmbH & CO. KG Dispositif pour le cintrage d'éléments allongés
WO2012126490A1 (fr) * 2011-03-24 2012-09-27 Wafios Aktiengesellschaft Dispositif de cintrage pour pièces en forme de barre et de tube
EP2756892A1 (fr) * 2013-01-21 2014-07-23 WAFIOS Aktiengesellschaft Dispositif de pliage pour pièces usinées en forme de tige
CN104690116A (zh) * 2015-03-25 2015-06-10 珠海格力电器股份有限公司 弯管机及其控制方法
CN115156349A (zh) * 2022-07-11 2022-10-11 江苏知行科技有限公司 一种磁性材料加工用折弯装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495740A (en) * 1993-10-21 1996-03-05 Schwarze; Rigobert Pipe bending machine
EP0990471A1 (fr) * 1998-09-30 2000-04-05 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Machine à plier
US6134932A (en) * 1996-04-10 2000-10-24 Robolix Machine for bending or cambering a profile section, and bending head therefor
FR2841162A1 (fr) * 2002-06-25 2003-12-26 Silfax Support de reglette pour machine a cintrer les tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495740A (en) * 1993-10-21 1996-03-05 Schwarze; Rigobert Pipe bending machine
US6134932A (en) * 1996-04-10 2000-10-24 Robolix Machine for bending or cambering a profile section, and bending head therefor
EP0990471A1 (fr) * 1998-09-30 2000-04-05 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Machine à plier
FR2841162A1 (fr) * 2002-06-25 2003-12-26 Silfax Support de reglette pour machine a cintrer les tubes

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7919427B2 (en) 2004-01-27 2011-04-05 Showa Denko K.K. Catalyst carrier and fuel cell using the same
EP1914021A1 (fr) * 2006-10-21 2008-04-23 Felss Burger GmbH Machine de cintrage de barres et/ou de pièces en forme de tige, en particulier de tubes et outil pour cette machine
FR2915410A1 (fr) * 2007-04-24 2008-10-31 Jaubjaub Consulting Sarl Machine a cintrer un profile selon deux sens de cintrage.
WO2008142305A2 (fr) * 2007-04-24 2008-11-27 Jaubjaub Consulting Machine a cintrer un profile selon deux sens de cintrage
WO2008142305A3 (fr) * 2007-04-24 2009-02-19 Jaubjaub Consulting Machine a cintrer un profile selon deux sens de cintrage
EP2308611A1 (fr) * 2009-09-26 2011-04-13 Tracto-Technik GmbH & CO. KG Dispositif pour le cintrage d'éléments allongés
WO2012126490A1 (fr) * 2011-03-24 2012-09-27 Wafios Aktiengesellschaft Dispositif de cintrage pour pièces en forme de barre et de tube
EP2756892A1 (fr) * 2013-01-21 2014-07-23 WAFIOS Aktiengesellschaft Dispositif de pliage pour pièces usinées en forme de tige
DE102013200851A1 (de) * 2013-01-21 2014-07-24 Wafios Aktiengesellschaft Biegevorrichtung für strangförmige Werkstücke
DE102013200851B4 (de) 2013-01-21 2018-05-30 Wafios Aktiengesellschaft Biegevorrichtung für strangförmige Werkstücke
CN104690116A (zh) * 2015-03-25 2015-06-10 珠海格力电器股份有限公司 弯管机及其控制方法
CN104690116B (zh) * 2015-03-25 2016-08-24 珠海格力电器股份有限公司 弯管机及其控制方法
CN115156349A (zh) * 2022-07-11 2022-10-11 江苏知行科技有限公司 一种磁性材料加工用折弯装置

Also Published As

Publication number Publication date
ITVI20030233A1 (it) 2005-05-20

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