EP0025002A1 - Vorrichtung zum doppelten Abkröpfen oder zum Biegen in S-Form von Rohren - Google Patents

Vorrichtung zum doppelten Abkröpfen oder zum Biegen in S-Form von Rohren Download PDF

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Publication number
EP0025002A1
EP0025002A1 EP80420102A EP80420102A EP0025002A1 EP 0025002 A1 EP0025002 A1 EP 0025002A1 EP 80420102 A EP80420102 A EP 80420102A EP 80420102 A EP80420102 A EP 80420102A EP 0025002 A1 EP0025002 A1 EP 0025002A1
Authority
EP
European Patent Office
Prior art keywords
tube
counter
support
frame
forms
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
EP80420102A
Other languages
English (en)
French (fr)
Other versions
EP0025002B1 (de
Inventor
Michel Plattard
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.)
UNICUM SA
Original Assignee
UNICUM SA
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 UNICUM SA filed Critical UNICUM SA
Priority to AT80420102T priority Critical patent/ATE3819T1/de
Publication of EP0025002A1 publication Critical patent/EP0025002A1/de
Application granted granted Critical
Publication of EP0025002B1 publication Critical patent/EP0025002B1/de
Expired 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
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies

Definitions

  • the invention relates to the shaping and more particularly the mechanical work of the tubes, mainly with a view to bending them, for the production of hangers in the shape of a policeman's hat or in esse, in order to obtain a crossing with another perpendicular tube disposed in the same plane, or even to avoid an obstacle in the case of an esse forming two successive bends in opposite directions.
  • an interchangeable form of bending acts perpendicularly in thrust on the tube held on the opposite side and symmetrically by lateral counter-forms, while spaced rollers, mobile or fixed, largely arranged in outside of said counter-forms, serve only as support or external stop on each side, for the free rectilinear part of the tube, during the forming operation.
  • the bending of thick tubes is carried out in good conditions, but unlike, the bending of thin tubes is defective as a result of the non-maintenance of said tube in line with the counter-forms, which leads to tears and crushes.
  • the rectilinear branches are no longer parallel.
  • the present invention aims to remedy these drawbacks.
  • the invention solves the problem consisting in that lateral counter-forms cooperate tangentially along the support points of the rectilinear tube before its bending, with rollers for supporting and clamping the tube, to thus ensure after its clamping and under the pushing action of the shape, its deformation with a sliding, rolling and guiding effect during the entire operation of forming the gendarme hat or the esse.
  • Figures 9, 10 and 11 show plan views schematically illustrating the formation of a bend in the shape of a policeman's cap with equal branches, with the apparatus according to the invention
  • FIG. 12 represents a plan view similar to FIG. 11, schematically illustrating the formation of a bend in the shape of a policeman's cap with unequal branches, with the apparatus according to the invention
  • the apparatus for bending the tubes in the shape of a gendarme's hat or in esse essentially comprises a frame 1 in the form of a tray, with at the rear, a square and reinforced end 1 1 drilled axially in 1 2 for the free sliding engagement of the graduated cylindrical part 2 1 of an adjustable stop 2 ending on the outside by a support flange 2 2 .
  • a threaded push rod 3 is screwed axially into the interior of the stop 2 and is at the end, above the frame 1, with one end forming a flat surface 3 provided with a groove 3 2 to allow the engagement of the axial opening 4 of an interchangeable form 4 or hanger, substantially semi-circular, held in the longitudinal position by a pin 5 which is housed in the groove 3 2 .
  • Each shape 4 with peripherally a semicircular groove 4 2 corresponding to the outside diameter of the tube "T" to be bent, is also established with a radius R which is standardized.
  • the push rod 3 forms a push head 3 3 of a machine which makes it possible to exert pressure such as a jack, or possibly a lever key with manual control.
  • the frame 1 also forms at the front, a T-profile whose branches are pierced in thickness, with holes 1 3 , 1 4 , 1 5 d i s-placed symmetrically with respect to the axis of the push rod 3 , but offset both longitudinally and transversely.
  • the holes 1 3 , 1 4 , 1 5 allow symmetrically in pairs, the fixing by screwing or otherwise, of a locking screw 6 intended to hold in position an axis 7 whose cylindrical outer surface allows centering with free rotation, circular or sector counter-forms 8, provided peripherally with semicircular grooves 8 1 corresponding to the outside diameter of the tube T to be bent.
  • Each interchangeable counter-shape 8 of variable diameter depending on the value of the radius of the hanger to be obtained can also be mounted by its screw 6, symmetrically and asymmetrically on the holes 1 3 , 1 4 or 1 5 of the branches of the frame 1, given its outside diameter and its more or less close positioning relative to the axis of the form 4, for the sole purpose of obtaining gendarme hats with variable spacing and with equal or unequal branches.
  • the frame 1 forms by its parallel lateral faces 1 7 , a guide slide of the corresponding U-shaped section of a sliding support 9 in the form of plates, applying below said frame 1.
  • the latter constitutes symmetrically at right of the faces 1 7 and on each side, a square section at a right angle with horizontal side 9 1 disposed substantially in the same plane as the upper face of the frame 1, and vertical side 9 2 forming at its base and internally, a notch 9 3 constituting the upper U-shaped guide section.
  • the support 9 is established with an axial and profiled branch 9 4 which projects beyond the front face of the frame 1 and forms at the end a squared boss 9 5 in which is screwed axially, an operating screw 10 provided externally with 'an operating handwheel 11.
  • the screw 10 constitutes a supported shoulder 10 1 provided with a circular groove 10 2 so as to engage in the corresponding opening 1 with an axial boss 1 9 formed at the end of the frame 1.
  • a pin 12 engaging in the groove 10, ensures the coupling in translation, screw 10 and frame 1.
  • each squared section of the sliding support 9 authorizes the seat of a roller 13 in the form of a rectangular block such as a square section, each face of which has a substantially semi-circular longitudinal groove 13 1 , calibrated according to the outside diameters of the usual tubes used.
  • Each roller 13 is further drilled asymmetrically and thickly, at 13 2 , in two perpendicular directions, to allow with play and in two positions, its engagement on a positioning rod 14 fixed vertically on the horizontal side 9 1 of the squared section .
  • each roller 13 is present tangentially and perpendicularly opposite the corresponding counterform 8, whatever its positioning, with a possibility of spacing or reconciliation, by acting on the handwheel 11 which controls the movement axial of the sliding support 9 relative to the frame 1.
  • the tube T engaged in the grooves 8 1 of the two counterforms 8 is thus clamped and rigorously held in position, as a result of the approximation and the support of the rollers 13 which apply rigorously during the clamping, on the vertical faces, which can be inclined between them, of squared sections, thereby forming a counter-support of the tube T, so as to allow the rigorous positioning of the two grooves 8 1 and 13 1 .
  • the roller 13 may possibly have a slight displacement in height during tightening.
  • the push rod 3 and the operating screw 10 are in alignment, along the same axis, to ensure perfect balance during the bending operation, and an equal clamping da tube T in line with the rollers 13 relative to the counter-forms 8.
  • the sliding support 9 is removed and only the frame 1, equipped with the push rod 3 provided with the form 4 and the corresponding counter-forms 8, is used.
  • the tube T is placed on the two counterforms 8 placed symmetrically or not, and the form 4 exerts in the known manner, an axial or asymmetrical support according to arrow F, to obtain a bend T with adjacent branches in shape of V.
  • the counter-form 8 arranged on the side of the longitudinal light 1 6 of the frame is fixed by its locking screw 6 and its axis 7, in said lumen 1 according to a spacing with respect to the other counterform corresponding to the dimension X, the displacement and adjustment being effected either by the graduations or even by measure.
  • the corresponding branch of the frame 1 can alternatively form an opening 10 1 in the shape of a T, allowing the displacement of the locking screw 6 in two directions perpendicular to the other counterform.
  • the tube T is placed in abutment on the recesses 13 1 of the rollers 13, then clamped opposite the non-offset counterform 8, by means of the operating handwheel 11, as illustrated in FIG. 7.
  • the form 4 is then brought directly into contact on the tube T, by simple sliding of the push rod 3, while the adjustable stop 2 is adjusted longitudinally in position, by screwing or unscrewing on said push rod 3, so as to present the figure of its graduation 2 3 corresponding to the dimension X, with respect to the external face of the squared part 1 1 of the frame 1.
  • the device allows the production of a gendarme hat with equal or unequal branches, from a tube T.
  • the symmetrical spacing E of the counterforms 8 is adjusted taking into account their diameter and the opening of the gendarme hat to be obtained.
  • the rectilinear tube T is then put in place on the grooves 8 1 of the counterforms 8, then tightened by the handwheel 11 which moves the sliding support 9 in order to support the rollers 13.
  • the shape 4 is as before, brought tangentially into contact with the said tube T, while the adjustable stop 2 is moved relative to the push rod 3, to ensure the positioning of the figure of its graduation corresponding to the dimension X of displacement of form 4 up
  • the counter-forms 8 of identical or different radii are offset with respect to the axis of the form 4, so as to obtain two unequal spacings D and D1.
  • the rollers 13 or the roller 13 corresponding to the against-form 8 furthest or larger diameter may be positioned differently on their stems 14 by turning-180 degrees, rap - their holes harbor 13 2 , so as to allow rigorously, the tangential support and the tightening of the branches of the tube T, with respect to said counter-forms.
EP80420102A 1979-09-03 1980-08-25 Vorrichtung zum doppelten Abkröpfen oder zum Biegen in S-Form von Rohren Expired EP0025002B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80420102T ATE3819T1 (de) 1979-09-03 1980-08-25 Vorrichtung zum doppelten abkroepfen oder zum biegen in s-form von rohren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7922359A FR2464109A1 (fr) 1979-09-03 1979-09-03 Appareil a cintrer les tubes en forme de chapeau de gendarme ou en esse
FR7922359 1979-09-03

Publications (2)

Publication Number Publication Date
EP0025002A1 true EP0025002A1 (de) 1981-03-11
EP0025002B1 EP0025002B1 (de) 1983-06-22

Family

ID=9229433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80420102A Expired EP0025002B1 (de) 1979-09-03 1980-08-25 Vorrichtung zum doppelten Abkröpfen oder zum Biegen in S-Form von Rohren

Country Status (7)

Country Link
EP (1) EP0025002B1 (de)
AT (1) ATE3819T1 (de)
DE (1) DE3063896D1 (de)
DK (1) DK367780A (de)
FI (1) FI802758A (de)
FR (1) FR2464109A1 (de)
NO (1) NO153324C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63171219A (ja) * 1988-01-12 1988-07-15 Ogura:Kk 曲げ修正機
GB2231518A (en) * 1989-05-16 1990-11-21 Deritend Eng Ltd Bending a box makers rule.
EP0875308A2 (de) * 1997-04-01 1998-11-04 Claudio Bernardinis Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008033862A1 (de) * 2008-07-19 2010-01-21 Bosch Mahle Turbo Systems Gmbh & Co. Kg Biegeeinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867261A (en) * 1955-02-23 1959-01-06 Blackhawk Mfg Co Pipe bender with bend indicator means on pivotal reaction blocks
GB814151A (en) * 1956-04-25 1959-05-27 Andre Huet Improvements in and relating to tube bending machines
FR1572453A (de) * 1968-05-02 1969-06-27
FR1592154A (de) * 1968-10-28 1970-05-11

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867261A (en) * 1955-02-23 1959-01-06 Blackhawk Mfg Co Pipe bender with bend indicator means on pivotal reaction blocks
GB814151A (en) * 1956-04-25 1959-05-27 Andre Huet Improvements in and relating to tube bending machines
FR1572453A (de) * 1968-05-02 1969-06-27
FR1592154A (de) * 1968-10-28 1970-05-11

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63171219A (ja) * 1988-01-12 1988-07-15 Ogura:Kk 曲げ修正機
JPH066212B2 (ja) * 1988-01-12 1994-01-26 株式会社オグラ 曲げ修正機
GB2231518A (en) * 1989-05-16 1990-11-21 Deritend Eng Ltd Bending a box makers rule.
EP0398486A2 (de) * 1989-05-16 1990-11-22 Deritend Engineering Limited Form zum Herstellen von Behältern
EP0398486A3 (de) * 1989-05-16 1991-07-24 Deritend Engineering Limited Form zum Herstellen von Behältern
EP0875308A2 (de) * 1997-04-01 1998-11-04 Claudio Bernardinis Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen
EP0875308A3 (de) * 1997-04-01 2002-01-16 Claudio Bernardinis Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen

Also Published As

Publication number Publication date
FI802758A (fi) 1981-03-04
DK367780A (da) 1981-03-04
NO153324B (no) 1985-11-18
FR2464109A1 (fr) 1981-03-06
NO802568L (no) 1981-03-04
NO153324C (no) 1986-02-26
EP0025002B1 (de) 1983-06-22
FR2464109B1 (de) 1983-10-28
ATE3819T1 (de) 1983-07-15
DE3063896D1 (en) 1983-07-28

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