WO2007122346A1 - Dispositif de cintrage de tubes ou profiles a structure symetrique pour double sens de cintrage et machine equipee du dispositif - Google Patents
Dispositif de cintrage de tubes ou profiles a structure symetrique pour double sens de cintrage et machine equipee du dispositif Download PDFInfo
- Publication number
- WO2007122346A1 WO2007122346A1 PCT/FR2007/051139 FR2007051139W WO2007122346A1 WO 2007122346 A1 WO2007122346 A1 WO 2007122346A1 FR 2007051139 W FR2007051139 W FR 2007051139W WO 2007122346 A1 WO2007122346 A1 WO 2007122346A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bending
- axis
- tube
- jaw
- head
- Prior art date
Links
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
Definitions
- the present invention relates to a new device for bending tubes or profiles and a machine comprising this device.
- the invention relates particularly but not exclusively to the so-called winding-voltage bending technique whose principle is recalled here in connection with FIGS. 1 to 3.
- a tube (A) is immobilized on a bending form (B) by a jaw (C).
- the assembly (jaw-jaw form) is rotated, a strip (D) or rollers (E) maintain the tube (A) in the axis of the machine.
- the clamping jaws In order to be effective, the clamping jaws must have sufficient clamping force and high rigidity to transmit the clamping force.
- This assembly is mounted on a bending arm rotating around the bending form.
- the objective of the present invention is to provide a more economical solution than those of the prior art and which meets the needs of designers.
- the invention achieves this objective and consists of a bending head, for example for a winding-tension bending technique, of the type comprising a set (jaw-shaped jaw) rotated about a first axis, one or more rollers holding a tube or profile tight against the bending form during bending, characterized in that it comprises a single assembly (jaw-shaped jaw) can be positioned in one or the other of two starting positions bending, symmetrical with respect to the axis of the tube so as to allow, either from one of the two positions, a bending in a bending direction, or from the other position, a bending in the opposite direction, single set being a head of bending composed of a main plate rotating around the first central axis, a roller mounted concentrically on said first axis, and parallel to the main plate, a clamping jaw mounted in rotation about a third axis mounted itself eccentric on a satellite tray rotatably mounted on a second axis carried by the main plate and at a predetermined distance from the
- the invention also relates to a machine equipped with a bending head of this type, controlled by a numerical control managing all the movements of the components of the machine.
- the numerical control calculates the movements of the components and the bending parameters from the two planar coordinates (x and y) and the rotation angle ( ⁇ ) defining the movements of the jaw.
- the numerical control further conventionally controls a guide-ruler means, a tube positioning means, a mandrel guiding means and a tube positioning means.
- the machine has a symmetrical structure whose bending direction changes are made by simple rotation of the axes.
- FIGS. 1 and 2 schematic diagrams of a winding-voltage bending assembly
- FIG. 3 example of bent tube by a set of Figures 1 or 2
- FIGS. 4 and 5 schematic diagrams of clockwise or counterclockwise bending
- FIG. 7 diagram of a device with two symmetrical tools
- FIG. 8 diagram of a device with two switchable tools
- FIG. 9 diagram of an equipment with two tools in different planes
- FIG. 10 schematic diagram of a symmetrical bending head according to the invention
- FIG. 11 diagram showing the three main rotational movements
- FIG. 12 detail of the positions of the constituent elements of the head in the starting position
- FIG. 13 detail of the positions in the clamping phase of the tube
- FIG. 14 detail of the positions in the bending phase of the tube
- FIGS. 15, 16 and 17 detail of the positions for bending in the opposite direction to that obtained with FIGS. 12, 13, 14,
- the inventive idea was to develop a new architecture replacing the current bending arm and that would allow the bending of thin-walled tubes in both directions (clockwise and anti-clockwise) with the same tooling.
- This new architecture must therefore include a symmetrical bending means.
- the clamping system behaves like a connecting rod from where a fast movement during the race, where the efforts are weak, and slower at the end of the race, where the efforts are important because of the triangulation of the axes.
- the circular bending head (1) (see Figure 10 and 1 1) comprises a circular main plate (2) rotating about its central axis (Ai).
- the bending tools are composed of a forming roller (3) mounted concentrically on the axis (Ai) and above the main plate (2), a relatively straight jaw (4) axis (A3) in a reference (Ox, Oy).
- This rectilinear movement results from mounting the bit according to a principle of the eccentric.
- the jaw (4) is rotatably mounted about an axis (A3) mounted itself on the periphery of a satellite plate (5) rotatably mounted on an axis (A2) carried by the main plate and at a predetermined distance of the axis (Ai).
- a slider (6) is provided to guide the tube conventionally.
- the bending head is composed of a main plate (1) rotating about the central axis (A 1 ).
- a second rotation (A 2 ) integral with the first rotation, eccentric with respect to the axis (A 1 ) makes it possible to move an eccentric point of the axis (A 2 ) relative to the axis of the first rotation (A 1 ).
- This displacement in a plane perpendicular (PL 1 ) to the central axis (A 1 ) allows a relative displacement of the point (PT 1 ) with respect to the point (PT 2 ).
- the association and / or the combined displacement of these two axes makes it possible to generate any trajectories in the plane (PL 1 ).
- the direction of the vector essential for the operation of a bending tool is provided by the third rotation (A 3 ) which allows to orient the vector in the coordinate system defined along the axis (A 1 ).
- This mechanical principle is applicable to move a vector in a plane.
- This displacement is decomposed for the bending of the tubes in a linear displacement phase to tighten the tube on the bending form, another phase of circular displacement for the bending of the tube, a linear displacement phase for the loosening of the tube.
- the bending phases are described in one direction and with reference to FIGS. 15 to 17, the bending phases in the opposite direction.
- FIG. 12 corresponds to a loading phase of a tube (6): the forming roller (3) and the strip (7) being aligned, the clamping jaw (4) is spaced apart to allow the tube to be loaded (6). ) from the front, and is in a starting position (Pi) located at a distance (S) from the axis (AiX) of the machine.
- FIG. 13 corresponds to a clamping phase of the tube: the roller 3 does not move, the strip comes into contact with the tube (6), and the conjugation and synchronization of the rotations of the main plate (2) in the counterclockwise direction around (Ai), the satellite tray (5) clockwise around (A2) and the jaw (4) anti-clockwise around (A3) generates a rectilinear movement of the jaw which clamps the tube ( 6) against the forming roller.
- This configuration of the jaw (3) on an eccentric axis on the satellite tray allows to obtain very large clamping forces.
- FIG. 14 corresponds to the bending phase of the tube: the tube (6), clamped on the roller (3) by the jaw (4), is wound on the roller (3) by rotating the roller in the clockwise direction around the axis (Ai) and by rotating the satellite plate clockwise around the same axis (Ai), the jaw pivoting around (A3) to remain constantly in optimal clamping position.
- the unclamping phase is not shown, in this phase, the roller remains fixed, a reverse synchronization of the rotations used in the clamping phase allows the clamping jaws to move away from the forming roller.
- the slide (7) moves back and forth, the main plate (2) returns to position for the next hanger, the tube advances and the forming roller returns to position.
- a new phase of clamping can begin.
- FIGS. 15, 16 and 17 show the same operating phases from a strip and a satellite plate positioned symmetrically in FIG. 15 with respect to their starting positions of FIG. 12.
- FIG. 16, a clamping phase
- FIG. 17 a bending phase in the opposite direction of the bending obtained with the phases of FIGS. 12 to 14.
- the point (P2) marks the starting position of the jaw which is located at a distance (S ') of the axis (AiX) of the machine, and symmetrically with respect to the starting position (Pi).
- FIGS. 18, 19, 20 show schematically the rotations (AX1) about the axis (Ai), (AX2) around the axis (A2), and (AX3) around the axis (A3) for a bending clockwise, and show respectively: in FIG. 18, the position of the axes when the jaw is open, (S) indicating the initial tightening setting, in FIG. 19, the position of the axes when the jaw is closed, the dimensions ( x) and (y) indicating the final tightening adjustment, in FIG. 20, the triangulation of the forces in the closed position of the jaw with
- the necessary means are the following: guide means (9) for example: for clamping and accompanying the tube or profile, means or carriage (8) for positioning the tube: for clamping, the advance and the orientation of the tube, guiding means (10): for positioning the mandrel (11) in the tube before bending and then removing it after bending, means for positioning the tube: for positioning it to the right or to the left and reversing the clamping head to put it in a symmetrical position.
- a control by numerical control allows the simultaneous and synchronized rotation of the three main axes but also the complementary movements necessary, namely:
- MVT 8 Rotation for carriage orientation (8) for bending in another plane
- MVT 9 Tightening tube.
- roller (3) and the other satellite elements of the eccentric below the main plate (2).
- a machine according to the invention preferably has a bending capacity of tubes 40 to 80 mm in diameter with a maximum thickness of 2 mm for a diameter of 80 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002641071A CA2641071A1 (fr) | 2006-04-21 | 2007-04-19 | Dispositif de cintrage de tubes ou profiles a structure symetrique pour double sens de cintrage et machine equipee du dispositif |
BRPI0708936-8A BRPI0708936A2 (pt) | 2006-04-21 | 2007-04-19 | dispositivo de arqueamento de tubulaÇÕes ou perfilados de estrutura simÉtrica para duplo sentido de arqueamento e mÁquina equipada com esse dispositivo |
US12/293,085 US20090126438A1 (en) | 2006-04-21 | 2007-04-19 | Device for bending tubes or profiled sections with symmetrical structure for two-way bending and machine equipped with same |
EP07731914.3A EP2012945B1 (fr) | 2006-04-21 | 2007-04-19 | Dispositif de cintrage de tubes ou profiles a structure symetrique pour double sens de cintrage et machine equipee du dispositif |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0603572 | 2006-04-21 | ||
FR0603572A FR2900077B1 (fr) | 2006-04-21 | 2006-04-21 | Dispositif de cintrage de tubes ou profiles a structure symetrique pour double sens de cintrage et machine equipee du dispositif |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007122346A1 true WO2007122346A1 (fr) | 2007-11-01 |
Family
ID=37461521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2007/051139 WO2007122346A1 (fr) | 2006-04-21 | 2007-04-19 | Dispositif de cintrage de tubes ou profiles a structure symetrique pour double sens de cintrage et machine equipee du dispositif |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090126438A1 (fr) |
EP (1) | EP2012945B1 (fr) |
BR (1) | BRPI0708936A2 (fr) |
CA (1) | CA2641071A1 (fr) |
FR (1) | FR2900077B1 (fr) |
WO (1) | WO2007122346A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2208549A1 (fr) * | 2009-01-16 | 2010-07-21 | WAFIOS Aktiengesellschaft | Outil de cintrage rotatif à traction avec bridage excentrique |
DE102009024406A1 (de) | 2009-06-09 | 2010-12-16 | Wafios Ag | Rotationsbiegewerkzeug mit Exzenterklemmung |
DE102011015570A1 (de) | 2011-03-30 | 2012-10-04 | Wafios Ag | Biegekopf zum Biegen stab- und rohrförmiger Werkstücke |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011014953B4 (de) * | 2011-03-24 | 2014-05-15 | Wafios Ag | Biegevorrichtung für stab- und rohrförmige Werkstücke |
CN102233371A (zh) * | 2011-04-13 | 2011-11-09 | 常州市天龙光电设备有限公司 | 板材弯曲装置 |
US10150154B2 (en) | 2013-11-14 | 2018-12-11 | Robert Kyle Hughes, JR. | Tube bending machine with reversible clamp assembly |
WO2015083310A1 (fr) * | 2013-12-04 | 2015-06-11 | 株式会社デンソーエアシステムズ | Unité de traitement et dispositif de traitement |
JP5894136B2 (ja) * | 2013-12-04 | 2016-03-23 | 株式会社デンソーエアシステムズ | 加工ユニットおよび加工装置 |
JP5894137B2 (ja) * | 2013-12-04 | 2016-03-23 | 株式会社デンソーエアシステムズ | 加工装置 |
CN114210778B (zh) * | 2021-12-13 | 2024-02-23 | 忠通(广州)环保机械有限公司 | 一种钢结构加工用钢板折弯机 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57193236A (en) * | 1981-09-17 | 1982-11-27 | Chiyoda Kogyo Kk | Both right and left bending type bender |
JPS6320126A (ja) * | 1986-07-11 | 1988-01-27 | Usui Internatl Ind Co Ltd | 左右両曲げ式ベンダ−装置 |
JP2001058215A (ja) * | 1999-08-23 | 2001-03-06 | Opton Co Ltd | 曲げ装置 |
EP1226887A1 (fr) * | 2001-01-30 | 2002-07-31 | BLM S.p.A. | Machine pour le cintrage d'objets allongés, notamment tuyaux, barres, profilés ou fils metalliques |
WO2003053606A1 (fr) * | 2001-12-20 | 2003-07-03 | Silfax | Machine a cintrer les tubes et son dispositif de cintrage a gauche et/ou a droite |
US20050268681A1 (en) * | 2004-06-08 | 2005-12-08 | Ping-Kun Hu | Dual-directional pipe-bending machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3260091A (en) * | 1963-05-24 | 1966-07-12 | Pedrick Tool And Machine Compa | Bending machine |
EP1591174B1 (fr) * | 2004-03-26 | 2008-05-28 | WAFIOS Aktiengesellschaft | Dispositif de pliage pour des pièces en forme de barre et de tube |
-
2006
- 2006-04-21 FR FR0603572A patent/FR2900077B1/fr not_active Expired - Fee Related
-
2007
- 2007-04-19 EP EP07731914.3A patent/EP2012945B1/fr active Active
- 2007-04-19 BR BRPI0708936-8A patent/BRPI0708936A2/pt not_active Application Discontinuation
- 2007-04-19 US US12/293,085 patent/US20090126438A1/en not_active Abandoned
- 2007-04-19 WO PCT/FR2007/051139 patent/WO2007122346A1/fr active Application Filing
- 2007-04-19 CA CA002641071A patent/CA2641071A1/fr not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57193236A (en) * | 1981-09-17 | 1982-11-27 | Chiyoda Kogyo Kk | Both right and left bending type bender |
JPS6320126A (ja) * | 1986-07-11 | 1988-01-27 | Usui Internatl Ind Co Ltd | 左右両曲げ式ベンダ−装置 |
JP2001058215A (ja) * | 1999-08-23 | 2001-03-06 | Opton Co Ltd | 曲げ装置 |
EP1226887A1 (fr) * | 2001-01-30 | 2002-07-31 | BLM S.p.A. | Machine pour le cintrage d'objets allongés, notamment tuyaux, barres, profilés ou fils metalliques |
WO2003053606A1 (fr) * | 2001-12-20 | 2003-07-03 | Silfax | Machine a cintrer les tubes et son dispositif de cintrage a gauche et/ou a droite |
US20050268681A1 (en) * | 2004-06-08 | 2005-12-08 | Ping-Kun Hu | Dual-directional pipe-bending machine |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2208549A1 (fr) * | 2009-01-16 | 2010-07-21 | WAFIOS Aktiengesellschaft | Outil de cintrage rotatif à traction avec bridage excentrique |
US8443644B2 (en) | 2009-01-16 | 2013-05-21 | Wafios Aktiengesellschaft | Rotary-draw bending die with eccentric clamping |
DE102009024406A1 (de) | 2009-06-09 | 2010-12-16 | Wafios Ag | Rotationsbiegewerkzeug mit Exzenterklemmung |
DE102009024406B4 (de) * | 2009-06-09 | 2013-04-04 | Wafios Ag | Rotationsbiegewerkzeug mit Exzenterklemmung |
DE102011015570A1 (de) | 2011-03-30 | 2012-10-04 | Wafios Ag | Biegekopf zum Biegen stab- und rohrförmiger Werkstücke |
WO2012130350A1 (fr) | 2011-03-30 | 2012-10-04 | Wafios Aktiengesellschaft | Tête de pliage pour plier des pièces en forme de barre et de tube |
DE102011015570B4 (de) * | 2011-03-30 | 2015-01-22 | Wafios Ag | Biegekopf zum Biegen stab- und rohrförmiger Werkstücke |
US9468963B2 (en) | 2011-03-30 | 2016-10-18 | Wafios Aktiengesellschaft | Bending head for bending rod- and pipe-shaped workpieces |
Also Published As
Publication number | Publication date |
---|---|
US20090126438A1 (en) | 2009-05-21 |
FR2900077B1 (fr) | 2008-12-26 |
BRPI0708936A2 (pt) | 2011-06-14 |
FR2900077A1 (fr) | 2007-10-26 |
CA2641071A1 (fr) | 2007-11-01 |
EP2012945B1 (fr) | 2013-09-04 |
EP2012945A1 (fr) | 2009-01-14 |
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