EP3052256B1 - Presse à plier et procédé de pliage - Google Patents
Presse à plier et procédé de pliage Download PDFInfo
- Publication number
- EP3052256B1 EP3052256B1 EP14805166.7A EP14805166A EP3052256B1 EP 3052256 B1 EP3052256 B1 EP 3052256B1 EP 14805166 A EP14805166 A EP 14805166A EP 3052256 B1 EP3052256 B1 EP 3052256B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- clamping
- guide
- edge
- workpiece
- 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.)
- Not-in-force
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- 238000005452 bending Methods 0.000 title claims description 207
- 238000000034 method Methods 0.000 title claims description 35
- 238000013459 approach Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 18
- 230000008569 process Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
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- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/002—Positioning devices
Definitions
- the invention relates to a bending press according to the preamble of claim 1 and a method for forming a workpiece according to the preamble of claim 13.
- An important factor in this case is to be able to carry out forming angles of more than 90 ° on the workpiece so that bending angles of at least 90 ° can be achieved even after an unavoidable return spring of a workpiece that occurs during unloading.
- a bending edge arranged on the bending cheek of a swivel press brake be moved in a first step at a distance at jaws or holddowns, which is the workpiece hold and then in a second step is moved transversely in the direction of the hold-down to form a forming angle on the workpiece to be able to effect as 90 °. Since this is not possible with a simple straight guide of the bending beam, have folding machines on consuming and complicated guides and drives in order to perform such combined movements of the bending cheek can. This complexity of the bending-beam drive also often brings limitations of the possible bending length and the machinable workpiece thickness.
- the object of the invention is to provide a bending press which has the advantages of the known pivoting bending method, but has a simple structure and has the said limitations only to a lesser extent.
- the object of the invention is achieved by a generic bending press, in which the bending beam guide is designed as a linear guide and a rectilinear trajectory of the bending edge causes and the forming edges of both jaws are adjustable by means of a transverse guide the clamping bar and an adjustment along an adjustment, which is connected to the trajectory approximates the bending edge.
- This relative movement of Clamping bar transversely to the movement path of the bending beam can be done at right angles or obliquely to the movement path of the bending beam.
- the complicated movement of the bending cheek of a swing bending press relative to the fixed jaws holding the workpiece is replaced by a combination of simple movements of the bending beam and the jaws.
- the straight guide of the bending beam is preferably oriented in the vertical direction, but there are also embodiments possible in which the straight guide obliquely to the vertical direction or horizontally.
- the leadership of the clamping bar does not necessarily have to be rectilinear, but can also cause a movement in the form of a curve that approximates the linear trajectory of the bending beam. For example, a movement of the clamping bar along a part of a circular path can take place.
- the transverse guide comprises the clamping bar guide of the second clamping bar and one of them structurally separate clamping bar guide of the first clamping bar, the adjustment paths of the clamping bar parallel to each other. Since a clamping bar guide and a clamping bar drive is required in any case for carrying out the clamping operation, it can be advantageously used in this specific embodiment also for the purposes of transverse guidance.
- the clamping bar guide of the first clamping bar can be constructed structurally simple the same as the clamping bar guide of the second clamping bar.
- clamping bar guides are formed as mutually parallel linear guides and extend in a helix angle, in particular between 10 ° and 30 °, to the bending guide. Neglecting the effects of friction results in a Helix angle of 30 ° with respect to the adjusting force in the direction of the jaw guide a twice as large force component for the transverse adjustment.
- transverse guide of the clamping bar runs approximately at right angles to the bending beam guide.
- the respective guides and drives can be designed optimized for the respective requirement.
- the transverse guide and the adjustment require in contrast to the clamping bar only a small work path, which is why a variety of structural solutions can be chosen, such. Linear guides, eccentric guides, etc.
- a stable synchronization of the movement of the two clamping bars is achieved when the clamping bar guides are arranged on a clamping bar frame, which is adjustable relative to the machine frame by means of the transverse guide and the adjusting transversely, ie at right angles or obliquely to the trajectory of the bending edge. Any differences in the movements of the clamping bar by two separate acting on the clamping bar frame drives can be avoided if a common central adjustment is provided for adjusting the clamping bar frame.
- An assembly-friendly embodiment of a bending press is achieved when the bending beam guide on a first frame part, in particular O-frame, and the clamping bar guide and the transverse guide on a second thereto spaced second frame part, in particular O-frame are arranged.
- the two O-frames are connected by suitable side stands.
- a slim and material-saving embodiment of a bending press is provided when the bending beam guide and the jaw guide and the transverse guide on opposite outer sides of a central frame part, in particular an O-frame, are arranged.
- the power flow between the bending beam and clamping bar in this case takes place over a short distance directly over the central frame part.
- a common beam frame in particular O-frame, and this is rectilinearly adjustable by means of the bending beam guide.
- the common beam frame has a high deformation stiffness and can be performed very accurately, which also gives increased bending accuracy.
- a horizontal distance between the clamping bar and the bending beam is adjustable.
- the bending process can be carried out at an increased distance and thus with a longer lever arm, e.g. at least three times the material thickness of the workpiece to be introduced, whereby the bending drive can be spared or can be made smaller.
- the flexible applicability of a bending press is substantially increased if the forming edges on the jaws and / or the bending edge on the bending beam from tool segments in the form of bending tools and clamping tools are assembled and thereby easily different lengths of the bending edge or the Umformkanten can be realized.
- setup operations can e.g. also be automated with spindles for tool movement.
- the object of the invention is further achieved by a method for forming a workpiece, in which this is clamped between a first jaw with a first forming edge and a second jaw with a second forming edge so that a portion protrudes between the forming edges and then a bending edge of a adjustable bending beam is guided past the Umformkanten at a distance, whereby the portion is angled relative to the clamped between the jaws part of the workpiece.
- the bending edge is guided during bending along a rectilinear trajectory and, after the bending edge has passed the forming edges, the latter has been displaced along an adjustment path which approaches the trajectory of the bending edge.
- An easily practicable variant of the method is that after the bending edge has passed the Umformkanten, the adjustment of the bending edge is largely or completely stopped and simultaneously or immediately thereafter the Umformkanten are guided at a right angle to or across the trajectory of the bending edge ,
- the lower jaw or the lower clamping bar requires no adjustability in the vertical direction and a vertical adjustment of the workpiece during the forming process is not required.
- An alternative embodiment of the method may be that after the bending edge has passed the forming edges, the forming edges are guided at a skew angle transversely to or across the trajectory of the bending edge and the adjustment of the bending edge coupled with the movement of Umformkanten until the completion of the forming process will continue.
- the transverse guidance of the clamping bar can be accomplished in this case solely by two parallel clamping bar guides.
- Fig. 1 and 2 the inventive method for forming a workpiece 1 is shown, wherein in Fig. 1 the state before the beginning of the forming process and in Fig. 2 the state is shown at the end of the forming process. It is a special embodiment of the known as swivel bending forming process.
- the workpiece 1 is clamped between a first clamping jaw 2 and a second clamping jaw 3, so that a partial section 4 can be angled relative to the remaining workpiece 1 during the subsequent forming process.
- the workpiece 1 consists of at least partially planar material that is suitable for a bending deformation.
- On the jaw 2 a forming edge 5 is formed, which is effective when the portion 4 is angled downwards, and is formed on the second jaw 3, a second forming edge 6, which is effective when the portion 4 is angled upward.
- the jaws 2, 3 have a shoe-like cross-section, whereby a workpiece 1 on the Umformkanten 5, 6 can be bent beyond a right angle.
- a bending beam 7 which has a bending edge 8.
- a bending beam 7 is shown with a bending edge 8, which is provided for an angling of the section 4 down.
- the forming edges 5, 6 are provided with a radius which also influences the smallest possible inner radius of the bent workpiece at the forming point.
- the bending beam 7 is moved approximately at right angles to a horizontal workpiece plane 9 downward, wherein the bending edge 8 has a horizontal distance 10 to the forming edges 5, 6.
- the distance 10 is at least as large as a workpiece thickness 11 selected, and is preferably 1.5 times to 8 times the workpiece thickness 11. Especially with thick workpieces 1, a greater distance 10, the initiation of the forming process by better leverage facilitate.
- the bending edge 8 is guided along a rectilinear trajectory 12, even after it has passed the two forming edges 5 and 6 and thereby the portion 4 is brought into an angled position.
- a linear trajectory 12 of the bending edge 8 of the section 4 can be angled up to 90 ° maximum, if a distance 10 is selected, which corresponds approximately to the workpiece thickness 11, by an unavoidable springback after removal of the bending edge. 8 can thus be achieved with the rectilinear movement of the bending edge 8 only a deformation angle smaller than 90 °.
- the bending edge 8 remains even after passing through the forming edge 5, 6 on its rectilinear trajectory 12, and an angling of the portion 4 is caused beyond 90 °, that the Forming edges 5, 6 of both clamping jaws 2, 3 are adjusted together with the clamped workpiece 1 along an adjustment path 13, which approximates the trajectory 12 of the bending edge 8 and in Fig. 2 is shown by an arrow.
- the workpiece 1 that is angled downwards from the bending edge 8 in front of the transverse movement of the clamping edges 5, 6 is indicated by dashed lines in FIG.
- the subsequent reduction of the distance 10 between clamping jaws 2, 3 and the bending beam 7 and the forming edges 5, 6 and the bending edge 8 after passing through the Umformkanten 5, 6 results accordingly from a transverse to the rectilinear trajectory 12 relative movement between the jaws. 2 It is possible that during this relative movement of the bending beam 7 is at a standstill and only the jaws 2, 3 are moved with the clamped workpiece 1, but it is also possible that the rectilinear movement of the bending edge.
- the adjustment path 13 of the clamping jaws 2, 3 is not necessarily oriented at right angles to the movement path 12 of the bending edge 8, but may also run obliquely to it along a straight line or along a curved path, for example a circular path, which runs obliquely to the movement path 12.
- Fig. 2 is shown with dotted arrow such a curved adjustment path 14, which can be generated for example by means of an Exzenterlagerung the jaws 2, 3 or the machine parts carrying these.
- Fig. 1 and 2 is further shown with a double arrow, the clamping movement 15 of the jaw 3 relative to the jaw 2.
- An alternative embodiment of the method is also in Fig. 2 indicated, in which the bending beam 7 a deviating from the vertical direction, but again straight with dashed arrow indicated trajectory 16 is moved along and the jaws 2, 3 pass through with the clamped workpiece 1 a relation to the vertical direction oblique adjustment 17.
- the adjusting movements of the bending beam 7 and the clamping jaws 2, 3 can be coupled by a control device so that there is an optimal relative to the forming process relative movement.
- Fig. 3 shows a rear view of a bending press 18 according to the invention with the basis of the Fig. 1 and 2 described forming process can be performed.
- the bending press 18 comprises a machine frame 19, in which already with reference to Fig. 1 and 2 described, adjustable bending beam 7 and two clamping jaws 2, 3 supporting clamping beams are mounted adjustable.
- the illustrated machine frame 19 comprises at its front side 20 a plate-shaped O-frame 21 and at its rear side 22 likewise a plate-shaped O-frame 23.
- the recesses in the O-frames 21 and 23 form a passage opening 24 which extends through the bending press 18 extends and allows the feeding of a workpiece 1 to the clamping bar or the bending beam 7 and, for example, also allows the discharge of the bent workpiece on the back 22.
- a support device 25 is arranged in the illustrated embodiment, which can carry the outside of the bending press 18 located part of a workpiece 1 and optionally also in addition to the running of the jaws 2, 3 with the clamped workpiece 1 movements synchronously, to avoid unwanted work piece deformations.
- This adjustment of the support device 25 is in Fig. 3 indicated by double arrows in the main coordinate directions.
- the machine frame 19 further comprises side stand, which connect the two O-frames 21, 23 in the illustrated embodiment. Gaps between structural components of the machine frame 19 may be closed by covers, whereby a largely closed machine exterior is given.
- Fig. 4 shows a cross section through a further embodiment of a bending press 18, with which a workpiece 1 can be angled.
- a workpiece 1 can be introduced through a through hole 24 in the machine frame 19 in the interior of the bending press 18, where it is held by a clamping device 26 for carrying out the forming process.
- the clamping device 26 comprises a first clamping bar 27 which carries the first clamping jaw 2 and a second clamping bar 28 which carries the second clamping jaw 3.
- the second clamping bar 28 is adjustable relative to the first clamping bar 27 by means of a clamping bar guide 29 and a clamping bar drive 30.
- the first lower clamping bar 27 is extended in this embodiment to an O-frame 31 which extends into the upper half of the bending press 21 and carries the fixed part of the clamping bar guide 29.
- the clamping bar drive 30 is formed in the illustrated embodiment by a hydraulic cylinder 32, but may alternatively be performed by a spindle drive with electric motor.
- the adjustable bending beam 7 is mounted by means of a bending beam guide 33 in the form of a linear guide 34 adjustable on the machine frame 19 and is driven by a bending beam drive 35, here in the form of a hydraulic cylinder 36.
- the bending edge 8 at the lower end of the bending beam describes a rectilinear trajectory 12 (see Fig. 1, 2 ), which runs in the illustrated embodiment in the vertical direction.
- a movement path 12 deviating from the vertical direction could also be possible.
- the bending edge 8 may be formed by a bending tool 37 removably mounted on the bending beam 7.
- the bending edge 8 can be adjusted in length by juxtaposition of such bending tools 37 to the required bending task.
- a further bending beam 38 may be provided with a further bending edge 39, with a workpiece 1 can also be angled upwards.
- a further bending beam 38 may be provided with a further bending edge 39, with a workpiece 1 can also be angled upwards.
- bending process 27 and 28 are mounted by means of a transverse guide 40 and an adjustment 41 relative to the machine frame 19 in the horizontal direction adjustable.
- a section of the workpiece 1 angled off with the aid of the bending beam 7 or the bending edge 8 can be angled over a deformation angle of greater than 90 °.
- the adjusting drive 41 is supported on the one hand on the machine frame 19 and on the other hand on the O-frame 31, which is connected to the lower clamping bar 27 and the clamping bar guide 29 with the upper clamping bar 28.
- the O-frame 31 is guided on its underside and its top over the transverse guide 40 on the machine frame 19, wherein as a transverse guide 40 in the illustrated embodiment, a linear guide is provided.
- a transverse guide 40 would also be possible by means of eccentric mounting on the machine frame 19, as a result of which an in Fig. 2 already shown, arcuate adjustment 14 for approaching the jaws 2, 3 to the path of movement of the bending edge 8 is possible.
- the adjusting drive 41 is realized in the illustrated embodiment by two hydraulic cylinders 42 which perform synchronized movements and thereby ensure a uniform horizontal adjustment.
- a bending press 18 is advantageous that the lower jaw 2 has no vertical component of movement during the forming process and therefore a clamped workpiece 1 must be moved only in the horizontal direction. A vertical adjustment of a support device 25 is not required in this case.
- Fig. 4 shows further that the markers 2, 3 can be composed of attached to the clamping bar 27, 28 clamping tools 43.
- a further and optionally independent embodiment of a bending press 18 is shown, again for the same reference numerals or component designations as in the preceding Fig. 1 to 4 be used.
- the machine frame 19 comprises two O-frames 21 and 23 which are spaced apart from one another and between which cooperating clamping beams 27 and 28 and the alternatively used bending beams 7 and 38 are arranged to be adjustably mounted.
- the bending beams 7, 38 carry, as already based on Fig. 4 Bending tools 37, with which an adapted for the respective bending task bending edge 8 or 39 is formed.
- the bending tools 37 can thereby be automatically guided, for example, by means of movement spindles 44 along the bending beam 7, 38.
- the bending beams 7 and 38 are adjustably mounted by means of linear guides 34 on the inside of the O-frame 23 and further driven by means not shown Biegebalkenantrieben 35, for example in the form of hydraulic cylinders or spindle drives with electric motor drive-connected.
- clamp jaws 2, 3 bearing clamping bar 27 and 28 are mounted on the inside of the other O-frame 21, wherein the clamping bar guide 29 of the upper clamping bar 28 with respect to the bending beam guide 33 in the form of the linear guide 34 is arranged obliquely.
- the obliquely arranged clamping beam guide 29 is in this embodiment part of the transverse guide 40, which further includes a clamping bar guide 45 of the lower clamping bar 27. This is aligned parallel to the clamping bar guide 29 of the upper clamping bar 28, which is why a workpiece 1 clamping clamping bars 2 and 3 can be adjusted exactly synchronously with each other.
- These are in Fig. 5 not shown Klemmbalkenantriebe provided, for example, include hydraulic cylinders or spindle drives with electric motors.
- the adjustment drive 41 for the clamping bar 27 and 28 is formed in this embodiment by the two synchronized beam drives.
- a support element 46 may be provided at the lower clamping bar 27 be that forms part of a support device 25 for a workpiece 1.
- the two O-frames 21 and 23 are interconnected via side posts 47 or other cross connectors, whereby the power flow between the two O-frames 21 and 23 is made.
- the inclination of the clamping beam guides 29 and 45 may be made for example by wedge-shaped spacers 48, on which bearing rails for the linear guides of the clamping bar guides 29, 45 are attached.
- An existing between the linear guide 34 of the bending beam 7, 38 and the clamping bar guides 29, 45 helix angle 49 is in particular between 10 ° and 30 °.
- Fig. 6 is a further and optionally independent embodiment of the bending press 18 is shown, again for like parts, the same reference numerals or component designations as in the preceding Fig. 1 to 5 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 to 5 referred or referred.
- the embodiment according to Fig. 6 has one according to the embodiment according to Fig. 5 similar kinematics of the bar movement, but it is different from Fig. 5 a central, plate-shaped frame member 50 is provided, on whose opposite outer sides 51 and 52, the bending beam guides 33, 34 and the clamping bar guides 29 and 45 are arranged.
- the power flow from the Umformkanten to the bending edge takes place in this embodiment directly over the central frame member 50 and can be dimensioned weaker in this embodiment, the side stand 47 due to the lower load.
- the central frame part 50 is embodied, for example, as an O-frame and results in a very large bending clearance both in front of and behind the bending tools.
- two mutually distanced and oppositely oriented bending beam 7, 38 are arranged on a common beam frame, in particular O-frame, and this is rectilinearly adjustable by means of the bending beam guide 33 in the form of linear guide 34.
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- Bending Of Plates, Rods, And Pipes (AREA)
Claims (15)
- Presse plieuse (18) pour le formage d'une pièce (1), comprenant un châssis de machine fixe (19), un dispositif de serrage (26) disposé sur celui-ci, avec une première barre de serrage (27), qui comprend une première mâchoire de serrage (2) avec une première arête de formage (5), et une deuxième barre de serrage (28), mobile par rapport à celle-ci au moyen d'un guidage de barre de serrage (29) et d'un dispositif d'entraînement de barre de serrage (30), qui comprend une deuxième mâchoire de serrage (3) avec une deuxième arête de formage (6), la pièce (1) pouvant être serrée entre les mâchoires de serrage (2, 3), ainsi qu'au moins une barre de pliage (7, 38) mobile par rapport au châssis de machine (19) au moyen d'un guidage de barre de pliage (33) et d'un dispositif d'entraînement de barre de pliage (35), avec au moins une arête de pliage (8, 39) dont la trajectoire (12) passe à une distance (10) des arêtes de formage (5, 6) des mâchoires de serrage (2, 3) et avec lequel une portion (4) de la pièce (1) dépassant entre les arêtes de formage (5, 6) peut être pliée par rapport à la partie de la pièce (1) serrée entre les mâchoires de serrage (2, 3), caractérisée en ce que le guidage de barre de pliage (33) est conçu comme un guidage linéaire (34) et produit une trajectoire (12) en ligne droite de l'arête de pliage (8, 39) et les arêtes de formage (5, 6) des deux mâchoires de serrage (2, 3) pouvant être déplacées au moyen d'un guidage transversal (40) des mâchoires de serrage (27, 28) et d'un dispositif d'entraînement de réglage (41) le long d'une course de réglage (13, 14, 17), qui s'approche de la trajectoire (12) de l'arête de pliage (8).
- Presse plieuse (18) selon la revendication 1, caractérisée en ce que le guidage transversal (40) comprend le guidage de barre de serrage (29) de la deuxième barre de serrage (28) et un guidage de barre de serrage (45), distincte de celle-ci, de la première barre de serrage (27), les courses de réglage (13, 14, 17) des barres de serrage (27, 28) s'étendant parallèlement entre elles.
- Presse plieuse (18) selon la revendication 2, caractérisée en ce que les guidages de barres de serrage (29, 45) sont conçus comme des guidages droits parallèles et s'étendant avec un angle d'hélice (49), plus particulièrement entre 10° et 30°, par rapport au guidage de barre de serrage (33).
- Presse plieuse (18) selon la revendication 1, caractérisée en ce que le guidage transversal (40) des barres de serrage (27, 28) s'étend approximativement perpendiculairement au guidage de barre de serrage (33).
- Presse plieuse (18) selon la revendication 1 ou 4, caractérisée en ce que les barres de serrage (27, 28) sont disposées sur un châssis de barre de serrage, plus particulièrement un châssis torique (31), qui est mobile par rapport au châssis de la machine (19) au moyen du guidage transversal (40) et du dispositif d'entraînement de réglage (41) transversalement par rapport à la trajectoire (12) de l'arête de pliage (8, 39).
- Presse plieuse (18) selon l'une des revendications précédentes, caractérisée en ce que le guidage de barre de pliage (33, 34) est disposé sur une première partie de châssis, plus particulièrement un châssis torique (23), et le guidage de barre de serrage (29, 45) et le guidage transversal (40) sont disposés sur une deuxième partie de châssis, distante de celui-ci, plus particulièrement un châssis torique (21).
- Presse plieuse (18) selon l'une des revendications 1 à 6, caractérisée en ce que le guidage de barre de pliage (33) ainsi que le guidage de mâchoires de serrage (29, 45) et le guidage transversal (40) sont disposés sur des côtés extérieurs opposés (51, 52) d'une partie de châssis centrale (50), plus particulièrement un châssis torique.
- Presse plieuse (18) selon l'une des revendications précédentes, caractérisée en ce que, sur le châssis de machine (19), se trouvent deux barres de pliage (7, 38) mobiles dans le sens inverse pour le pliage dans des directions opposées.
- Presse plieuse (18) selon l'une des revendications 1 à 7, caractérisée en ce que deux barres de pliage (7, 38), distantes entre elles et orientées dans le sens inverse, sont disposées dans un châssis commun, plus particulièrement un châssis torique, et celui-ci peut être déplacé en ligne droite au moyen du guidage de barre de pliage (33).
- Presse plieuse (18) selon l'une des revendications précédentes, caractérisée en ce qu'une distance horizontale (10) est réglable entre les barres de serrage (27, 28) et les barres de pliage (7, 38).
- Presse plieuse (18) selon l'une des revendications précédentes, caractérisée en ce que les arêtes de formage (5, 6) sont constituées, sur les mâchoires de serrage (2, 3), de segments d'outils sous la forme d'outils de serrage (43) et/ou l'arête de pliage (8, 39) de la barre de pliage (7, 38) est constituée de segments d'outils sous la forme d'outils de pliage (37).
- Presse plieuse (18) selon l'une des revendications précédentes, caractérisée en ce que, dans le châssis de machine (19), se trouve une ouverture de passage (24) pour une pièce (1), libre du côté avant (20), entre les barres de serrage (27, 28) et la ou les barres de pliage (7, 38).
- Procédé de formage d'une pièce (1), dans lequel celle-ci est serrée entre une première mâchoire de serrage (2), disposée sur une première barre de serrage (27), avec une première arête de formage (5) et une deuxième mâchoire de serrage (3) disposée sur une deuxième barre de serrage (28), avec une deuxième arête de formage (6), de façon à ce qu'une portion (4) dépasse entre les arêtes de formage (5, 6) puis une arête de pliage (8, 39) d'une barre de pliage mobile (7, 38) est passée à une distance (10) des arêtes de formage (5, 6), ce qui permet de plier la portion (4) par rapport à la partie de la pièce (1) serrée entre les mâchoires de serrage (2, 3), caractérisée en ce que l'arête de pliage (8, 39) est guidée, lors du pliage, le long d'une trajectoire (12) en ligne droite et, lorsque l'arête de pliage (8, 39) a dépassé les arêtes de formage (5, 6), les arêtes de formage (5, 6) des deux mâchoires de serrage (2, 3) sont déplacées, conjointement avec la pièce serrée (1), au moyen d'un guidage transversal (40) des barres de serrage (27, 28) et d'un dispositif d'entraînement de réglage (41), le long d'une course de réglage (13, 14, 17), qui s'approche de la trajectoire (12) de l'arête de pliage (8, 39).
- Procédé selon la revendication 13, caractérisé en ce que, lorsque l'arête de pliage (8, 39) a dépassé les arêtes de formage (5, 6), le mouvement de l'arête de pliage (8, 39) est largement ou entièrement stoppé et, simultanément ou immédiatement après, les arêtes de formage (5, 6) se rapprochent, avec un angle droit, transversalement sur ou transversalement au-dessus de la trajectoire (12) de l'arête de pliage (8, 39).
- Procédé selon la revendication 13, caractérisé en ce que, lorsque l'arête de pliage (8, 39) a dépassé les arêtes de formage (5, 6), les arêtes de formage (5, 6) sont rapprochées avec un angle d'hélice (49) transversalement sur ou transversalement au-dessus de la trajectoire (12) de l'arête de pliage (8, 39) et le mouvement de l'arête de pliage (8, 39) couplé avec le mouvement des arêtes de formage (5, 6) est continué jusqu'à la fin du processus de formage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50645/2013A AT514821B1 (de) | 2013-10-04 | 2013-10-04 | Biegepresse und Biegeverfahren |
PCT/AT2014/050232 WO2015048836A1 (fr) | 2013-10-04 | 2014-10-02 | Presse à plier et procédé de pliage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3052256A1 EP3052256A1 (fr) | 2016-08-10 |
EP3052256B1 true EP3052256B1 (fr) | 2017-07-26 |
Family
ID=51999185
Family Applications (1)
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EP14805166.7A Not-in-force EP3052256B1 (fr) | 2013-10-04 | 2014-10-02 | Presse à plier et procédé de pliage |
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EP (1) | EP3052256B1 (fr) |
AT (1) | AT514821B1 (fr) |
WO (1) | WO2015048836A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT516834B1 (de) * | 2015-05-26 | 2016-09-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Verfahren zum Schwenkbiegen |
DE102018000344B3 (de) | 2018-01-17 | 2019-05-23 | Nikolaus Franz Duscher | Biegemaschine, Biegeeinheit, elektronische Steuereinrichtung und Verfahren zum Biegen eines Werkstücks aus Flachmaterial |
AT520943B1 (de) * | 2018-02-21 | 2019-09-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Fertigungsanlage mit Werkzeugwechseleinheit und Klemmbacke sowie Verfahren zum Werkzeugwechsel |
IT201900009657A1 (it) * | 2019-06-20 | 2020-12-20 | Dallan Spa | Macchina piegatrice per lamiere e metodo di piegatura di lamiere |
CN111618134B (zh) * | 2020-06-01 | 2023-11-24 | 歌尔股份有限公司 | 折弯机 |
CN111922158A (zh) * | 2020-06-10 | 2020-11-13 | 湖南南洋电气有限公司 | 新型液压折边装置 |
CN112275852B (zh) * | 2020-10-10 | 2021-11-30 | 南京云上自动化科技有限公司 | 一种全自动双向折边机精度补偿机构 |
CN113926882B (zh) * | 2021-10-22 | 2024-07-05 | 新代科技(苏州)有限公司 | 一种折弯中心的换边借位方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US4722214A (en) * | 1985-03-12 | 1988-02-02 | Murata Kikai Kabushiki Kaisha | Split die for holding work during bending operation |
IT1182514B (it) | 1985-07-15 | 1987-10-05 | Imp Prima Spa | Procedimento ed impianto per effettuare la piegatura di precisione di lamiere |
IT1201126B (it) | 1987-01-09 | 1989-01-27 | Salvagnini Transferica Spa | Macchina piegatrice per la produzione di pannelli in lamiera rettangolari a partire da fogli piani di lamiera |
US5182936A (en) * | 1988-01-29 | 1993-02-02 | Amada Company, Limited | Plate bending machine equipped with a plate clamping manipulator and a plate position detecting device |
US5642291A (en) * | 1989-12-22 | 1997-06-24 | Amada Company, Limited Of Japan | System for creating command and control signals for a complete operating cycle of a robot manipulator device of a sheet metal bending installation by simulating the operating environment |
US5313814A (en) * | 1992-10-27 | 1994-05-24 | Kabushiki Kaisha Komatsu Seisakusho | Bending machine |
IT1267472B1 (it) * | 1994-10-27 | 1997-02-05 | Sapim Amada Spa | Pressa piegatrice per l'esecuzione di pieghe a c sui quattro bordi di un pannello di lamiera. |
FR2729007B1 (fr) * | 1994-12-29 | 1997-01-24 | Bull Sa | Dispositif de cambrage de pattes conductrices d'un support intermediaire de circuit integre |
US5950484A (en) * | 1996-09-26 | 1999-09-14 | Reinhardt Maschinenbau Gmbh | Bending center |
DE19639590A1 (de) | 1996-09-26 | 1998-04-09 | Reinhardt Gmbh Maschbau | Biegezentrum |
IT1284918B1 (it) * | 1996-10-03 | 1998-05-28 | Salvagnini Italia Spa | Macchina pannellatrice dotata di un premilamiera avente lunghezza programmabile |
IT1292259B1 (it) * | 1997-04-15 | 1999-01-29 | Antonio Codatto | Pressa piegatrice per lamiere. |
JP2000176550A (ja) * | 1998-12-18 | 2000-06-27 | Amada Co Ltd | 曲げ加工装置 |
ITUD20020210A1 (it) * | 2002-10-11 | 2004-04-12 | Antonio Codatto | Procedimento e dispositivo per la piegatura di elementi, |
ITTO20050880A1 (it) | 2005-12-16 | 2007-06-17 | Crea Srl | Macchina combinata pannellatrice-piegatrice |
DE102006047109A1 (de) | 2006-09-27 | 2008-04-03 | Ras Reinhardt Maschinenbau Gmbh | Bearbeitungsmaschine |
US8276425B2 (en) * | 2007-10-02 | 2012-10-02 | Mestek Machinery, Inc. | Ductmaking apparatus |
ITVR20110061A1 (it) * | 2011-03-30 | 2012-10-01 | Finn Power Italia S R L | Meccanismo di movimentazione per struttura portalame di macchina pannellatrice per l'esecuzione di piegature su fogli di lamiera metallica |
KR101420048B1 (ko) * | 2013-02-14 | 2014-07-17 | 김산동 | 밴딩 장치를 이용한 밴딩 구조 형성방법 |
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2013
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2014
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- 2014-10-02 WO PCT/AT2014/050232 patent/WO2015048836A1/fr active Application Filing
- 2014-10-02 EP EP14805166.7A patent/EP3052256B1/fr not_active Not-in-force
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2019
- 2019-04-29 US US16/397,715 patent/US11117175B2/en active Active
Non-Patent Citations (1)
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US11117175B2 (en) | 2021-09-14 |
US20160271671A1 (en) | 2016-09-22 |
US10350662B2 (en) | 2019-07-16 |
US20190247905A1 (en) | 2019-08-15 |
EP3052256A1 (fr) | 2016-08-10 |
WO2015048836A1 (fr) | 2015-04-09 |
AT514821A1 (de) | 2015-04-15 |
AT514821B1 (de) | 2015-06-15 |
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