EP2403664B1 - Procédé de pliage libre avec une matrice réglable - Google Patents

Procédé de pliage libre avec une matrice réglable Download PDF

Info

Publication number
EP2403664B1
EP2403664B1 EP10714838.9A EP10714838A EP2403664B1 EP 2403664 B1 EP2403664 B1 EP 2403664B1 EP 10714838 A EP10714838 A EP 10714838A EP 2403664 B1 EP2403664 B1 EP 2403664B1
Authority
EP
European Patent Office
Prior art keywords
bending
die
sheet metal
adjustment method
adaptive adjustment
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.)
Active
Application number
EP10714838.9A
Other languages
German (de)
English (en)
Other versions
EP2403664A1 (fr
Inventor
Jörg Heusel
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.)
Trumpf Maschinen Austria GmbH and Co KG
Original Assignee
Trumpf Maschinen Austria GmbH and Co KG
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 Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP2403664A1 publication Critical patent/EP2403664A1/fr
Application granted granted Critical
Publication of EP2403664B1 publication Critical patent/EP2403664B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • 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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • 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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0227—Length adjustment of the die

Definitions

  • the invention relates to an adaptive adjustment method for a bending tool assembly for bending sheet metal parts.
  • a sheet metal part is formed by a press beam with a bending punch along the bending line, which is formed by the contact line of the punch with the sheet metal part, presses the sheet metal part in a bending die until the desired deformation is achieved.
  • the bending die is formed in a known manner such that one, running parallel to the bending line and, for example, slot-like depression has two bending edges, which are spaced by a distance w, the die width, from each other, wherein the recess, for example. U- or V- may be formed.
  • the two bending edges preferably have a symmetrical distance to the bending line, in particular in each case w 2 .
  • the bending punch presses the sheet metal part along the bending line into the depression, wherein the sheet is deformed by abutment against the bending edge and the contact line with the bending punch, in particular the legs of the sheet metal part will bend.
  • the force of the punch to the sheet metal part of this is formed along the bending line, which forms a radius in the cross section of the sheet metal part by this deformation, which depends essentially on the Gesenkweite, the sheet thickness, the radius of the punch and the material strength.
  • the bending radii will differ at the flat side of the sheet opposite the bending line and the flat side of the sheet in contact with the bending punch.
  • the radius facing the punch will be smaller than the opposite radius.
  • Significant influencing factors on the achievable bending radius are the sheet thickness and the material hardness, since this can be used to determine the die width and pressing force required for the bending process.
  • the so-called unwound length must first be determined, ie that distance between the sheet edge and bending line, so after the bending process the leg has the corresponding desired length.
  • the bending process results in a so-called bending shortening, which is compensated for by means of a so-called correction factor by which the bending line must be displaced away from the sheet edge in order to achieve the desired limb length after bending deformation.
  • the two cheeks are swung open and attach themselves to the sheet metal part to be formed and thus support the bending deformation.
  • the pressing force is applied by the down bending punch.
  • the two Anlegwangen are preferably mechanically coupled in their movement, so that both cheeks perform a counteracting movement.
  • this training can be, for example, sheet metal parts with low material strength bend, in which it would come without the support of the Anlegwangen, to no exact bending edge and thus large deviations in the bending result would be expected.
  • the document WO 99/14641 A1 discloses a bending method in which the movement of the pressing tool is monitored to obtain a corresponding bending result.
  • a neural network is disclosed which has been parameterized in a teaching phase by means of a plurality of different test bending operations, in order subsequently to execute the bending operation on the basis of the learned information, in particular information of the current bending process is evaluated in order to determine the movement of the press beam of the machine to control.
  • the force in relation to the deformation of the press bar and the press table is detected and learned by the neural network in the learning or training phase.
  • the neural network can then determine, based on the actual sheet metal parameters, the penetration depth of the punch required to form the desired bend radius.
  • test bending operations are required, in particular 200 test bending operations are required to train the neural network to a one-percent accuracy in production.
  • the nominal thickness of the sheet is additionally made available to the neural network, which determines therefrom the required penetration depth of the press punch.
  • a bending method for bending a multilayer structure which multilayer structure has at least two metallic cover surfaces, between which a polymer layer is arranged.
  • a bending punch has two independently movable parts, which engage in a bending die, which also consists of two independently movable elements.
  • the two parts of the punch or the two parts of the die move relative to one another depending on the depth of penetration of the punch so as to prevent squeezing of the multilayer structure and to form the desired bending angle.
  • the relative movement of the parts of the die is caused by the force of the declining bending punch.
  • the US 5,305,659 A discloses a bending die which is arranged on a bending table, wherein the die parts are designed to be displaceable.
  • the tool comprises a symmetrically acting drive means to move the two die parts relatively and symmetrically to each other, thus adapting the width of the die to the radius to be bent. The smaller the distance between the two die parts, the smaller the distance of the V-shaped bend gap.
  • the document EP 0 865 840 A1 discloses a bending die assembly consisting of two parts, which are movable in relation to each other and thus can form an adjustable width between the bending edges, in particular, the two die halves are displaceable transversely to the median plane of the bending die.
  • the font JP 07 016654 discloses a pressing device having a central receiving punch and lateral receiving beams, which receiving bars are arranged laterally of the central receiving beam. By adjusting a secured with lock nuts threaded rod, the stop bars can be moved so as to be able to adjust the width of the bending die individually.
  • the font JP 03 110019 discloses a bending die in which by displacing a part along an inclined plane a stop element is changed in a relative position, wherein on this stop member two adjusting elements are arranged, which in turn act on an inclined plane on the two jaws of the bending die, so by the central Moving an actuator, the width of the bending die is changed symmetrically.
  • the font JP 63 013620 discloses a bending die with two die parts, which are pressed against each other by means of a prestressed spring, wherein the immersion of the punch and the deformation of the sheet metal part, a movement apart of the bending die which allows the punch to dip deeper so that laminated sheet metal parts can be bent very reliably.
  • a bending press further comprises a stop device, which is arranged in the working plane in which the sheet metal part is inserted into the bending press, in particular so normal to the direction of travel of the punch.
  • the sheet is inserted into the bending tool and applied to the stop device.
  • the stop device is positioned at the distance x from the bending line which corresponds to the calculated distance to reach the desired leg length. After the first bending operation and determination of a correction factor for the leg length, the stop device is offset by the determined correction value.
  • the thickness can fluctuate slightly within a sheet metal batch, which poses great problems in terms of tolerances to be complied with precision bending parts, as the bending result, and thus the influence of any deviating sheet thickness, can be determined only after the bending process, where a correction is no longer possible ,
  • the bending result is, however, also influenced by the die width itself, since with different sheet thickness also different radii and including the strength of the material, also different pressing forces arise.
  • Known methods have the disadvantage that the die width can only be changed in coarse steps due to high tool costs, since only one set of tools will be present, but furthermore a tool change is required in each case. With known bending methods, therefore, the influence of the Gesenkweite on the bending result, in particular on the bending radius and the associated leg length can only be minimized, a complete compensation is usually not possible.
  • the object of the invention is therefore to improve a bending method, in particular for bending sheet metal parts, to the effect that fluctuations in the sheet metal part parameters, already the first workpiece with respect to the bending deformation to be formed, lie within definable tolerances.
  • the object of the invention is achieved by measuring the respective current value of the sheet thickness before the bending deformation and, in the case of deviation from a desired thickness, determining a correction value for the die width and changing the die width by the determined correction value.
  • unpredictable thickness variations can be corrected in advance, for example, due to a batch change of the sheet used, so that a reject part due to the changing bending geometry is excluded from the in.
  • the detection of the actual thickness of the sheet metal part can now be carried out, for example, randomly, at least in a batch change. Furthermore, the detection can also be carried out before each bending operation, so that an exact correction of the influence of the sheet thickness can be made for each bending part.
  • the detection can be done for example when inserting the sheet metal part in the bending tool assembly by an upstream measuring device, or a measuring device of the bending press. The operator of the bending press is thus automatically informed of the correction value for adjusting the die width and can therefore possibly adjust the die width by the correction value.
  • this can be done by means of an adjusting device, in which a threaded spindle acts on the two bending edges of the Beigegesenk, that by turning the spindle by means of an actuating device, the distance between the bending edges, so the die width changed.
  • a thickness deviation is determined in relation to a desired thickness and, in the case of a deviation, a correction value dw for the die width is determined on the basis of a model of the bending process.
  • a correction value dw for the die width is determined on the basis of a model of the bending process.
  • a mathematical equation model exists to determine from the target sheet thickness, the desired leg length of the bent part and the material hardness that bending line along which the punch must act on the sheet metal part in order to achieve the desired bending result with the given output parameters.
  • the bending tool assembly has a stop device with a stop surface for the sheet metal part, wherein the stop device is arranged parallel to a moving plane normal to the feed plane movable and wherein the thickness deviation dt a correction value dx is determined for a stop position and the stop surface to the determined correction value is moved.
  • a second important influencing factor for the accuracy of a bending deformation, in particular for the length of the bent leg, is given by the stop position of the sheet metal part on the stop device.
  • This stop position determines how far the bending line is removed from a sheet metal edge, which, according to the model of the bending process, has a direct influence on the bent leg length, in particular the stop position determines the ratio of the leg lengths of a bent angle.
  • the highest possible throughput is advantageous for industrial production, ie, it is necessary to reduce the time required to carry out the bending deformation, without impairing the accuracy of the formed bent parts.
  • the time to prepare a press brake for the next bending process is a significant factor influencing the throughput.
  • the detection of the actual leg length is carried out during the bending deformation.
  • the detection of the actual leg length can be done for example by means of a tactile device, which can be monitored directly the bending curve and in deviation from a predetermined bending curve, which results in a deviation from a required leg length, a correction can be made immediately, for example, in which the Gesenkweite is adjusted accordingly.
  • the bending die will therefore be designed in this case in such a way that it can also be adjusted during a bending operation without the bending part having to be manipulated by operating personnel for this purpose. For example, the compression pressure can be slightly reduced, so that the bending die is relieved and the die width can be changed.
  • a further advantage is a development according to which the detection of the actual leg length is performed contactless, since thus the bending part does not have to be inserted or arranged in a measuring device, which would require additional operating actions and thus increases the processing time.
  • the detection of the actual leg length can for example take place in that the bending part detected in its storage position for further processing automatically by an optically acting measuring device and the bent leg length is determined. If, for example, the bending press is part of a production system, the bent limb length can be determined fully automatically during transport of the bent part to the next process step and transmitted to the control of the bending press, so as to flow directly into the adjustment or correction of the die width and / or stop position.
  • the contactless detection of the actual leg length can already take place during the bending process, for example by means of an optically acting detection device which is arranged on the bending press and the length of the bent leg in its bent end position, or possibly already detected during the bending process.
  • Another factor influencing the accuracy of the bent legs is given by the cutting accuracy of the sheet metal part. For example, if an isosceles angle to bend, the original initial length of the metal strip has a very significant impact on the length of the bent legs. Therefore, according to a development before the bending deformation, a developed actual length of the sheet metal part is detected and in the event of deviation from a proportion dx 2 to the correction value dx and / or a proportion dw 2 to the correction value dw determined a desired length. Even if, for example, a plurality of bending operations are performed on a sheet metal part, the actual developed length is taken into account, otherwise without correction a propagating error could occur, which could result in significant deviations in the sheet metal parts to be bent.
  • the bending die has a first and second die part, which are spaced from each other by the Gesenkweite, wherein the first and second die part is adjusted parallel to the feed plane in their relative position to the table bar.
  • the bending edges of the two die parts are spaced apart by the die width.
  • the method further developed according to the invention now has the very special advantage that a variety of different die widths can be set with this bending die which can be changed in the die width.
  • a refinement is advantageous according to which the die parts of the bending die are adjusted relative to each other by a drive unit in their relative position. Since such a bending press usually also has a control, which is usually also designed for processing the bending model, this development is advantageous in that the determined correction values dw and / or dx are determined by the controller and thus directly the drive unit can be controlled, to move the die parts of the bending die automatically and, in particular, without additional manipulation work by the operator, into the corresponding position. An operator can therefore assume at any time that the bending press, in particular the die width, is set to the sheet metal part currently to be processed and, under certain circumstances, deviating from desired values in individual dimensions.
  • the bending tool arrangement is thus always optimally adapted to the bending model taking into account the actual sheet metal part parameters.
  • the first and second die part of the bending die are adjusted symmetrically to a center line, so that the leg lengths forming by the bending process change in the same way.
  • the die width is set to a, determined by the model of the bending process die width w. Since the target dimension of the bending mandrel to be formed and also the desired thickness of the inserted Blechs are known, can be determined based on the bending model, the required die width and thus adjust the Gesenkweite automatically, but in particular without manual operation.
  • the stop surface is moved relative to the traversing plane to a determined by the model of the bending process stop position x. Due to the bending model can be determined from the desired desired dimensions of the bent part directly that position of the stop to be able to form the desired bending leg after applying the sheet metal part to the stop surface and performing the bending.
  • the movement to the determined stop position x is preferably carried out by a drive means, whereby the stop position can be adjusted automatically and in particular without operating action.
  • a further development according to which a bending reduction is determined with the model of the bending process has the advantage that a correction value for the stop position dx and / or for the die width dw can thus be determined even before the first bending deformation is carried out, so that the first bending deformation can already be achieved with high accuracy can be carried out.
  • This refinement also has the advantage that in the case of bending transformations that are carried out successively on a sheet metal part, whereby the sheet length is shortened in each case during bending, the required blank length can be determined in advance and, in particular, a correction factor of the die width dw or, respectively, before the bending deformation is carried out ., a correction factor of the stop position dx can be determined and thus in turn the first bent bent part can be produced in high accuracy.
  • the change in the Gesenkweite is also carried out during the bending process.
  • This has the advantage that a deviation from a desired bending curve, as required by the bending model, can still be corrected during the course of the bending transformation.
  • the movement history the bending sheet metal limb (s) being detected, for example, by means of a detection device, and a deviation from the course determined by the bending model.
  • the die width and / or the orientation of the bending die can be corrected in relation to the traverse plane, so as to form a dimensionally stable bending part.
  • the method according to the invention can be carried out by a bending tool arrangement, wherein the bending punch has a first and a second die part, which are connected to a table bar detachably longitudinally displaceable in a manner normal to the movement plane.
  • This design has the very special advantage that, in contrast to known bending tool arrangements, the two die parts can form a freely adjustable die width and thus does not have to resort to a set of Biegegesenken as previously, for cost reasons, only a limited number of different die widths was usually available , So far, a bending deformation has usually only been carried out with the most suitable bending die, whereby a systematic deviation from the desired bending profile predetermined according to the bending model was to be expected.
  • the bending tool arrangement may further comprise a stop device with a stop surface, wherein the stop device is movable parallel to a feed plane and wherein the feed plane is aligned normal to the traverse plane.
  • a movable stop device has the particular advantage that, based on the model of the bending deformation, the stop device and thus a stop position x can be set or moved to the required value, which was determined on the basis of the bending model.
  • the stop device will further comprise a drive device, so that the movement of the stop device and thus the change or adjustment of the stop position x can be performed automatically, without requiring a manual operation would be required.
  • this design has the further advantage that, for example, manufacturing data relating to the bent part, can be taken over by a higher-level control device and in particular automatically, without the help of an operator, taken over and the invention Bending tool assembly can be set to the appropriate part of the workpiece parameters.
  • the bending tool arrangement is a development of advantage, according to which the first die part and the punch have a pressing surface.
  • a bending deformation to be carried out with the claim further developed bending tool assembly is known as so-called folding.
  • a bending leg in the free-bending process is bent as far as possible and then pressed the flared leg flat.
  • the claim further developed bending tool assembly it is now possible in a particularly advantageous manner, both with a tool to perform a free-bending process and, for example, a folding, which due to the inventive design, the first and second die part can be moved independently, so for example after performing the free-bending process with the two die parts in each case a first position, at least one die part can be moved to a second position, so that the bent part can be re-applied and formed by pressing the pressing surfaces of the first die part and the punch from the bent-up sheet legs a fold.
  • a table bar having at least one drive device has the advantage that without manipulation action of the operator, the bending die can be moved and thus, for example, the change in the Gesenkweite by moving the first and second die part can be changed symmetrically to each other.
  • the drive device will be designed such that the drive action causes a movement symmetrical to the traverse plane of the Gesenkenteils relative to each other, but also a non-symmetrical movement of the Gesenkenteils is covered by the training with.
  • the drive device is detachably connected to the first and / or second die part.
  • the drive effect of the drive device can be selectively directed to the first, the second or both die parts, so that a different and, in particular, individual adjustment of the first and / or second die part can be formed in relation to the travel plane and in relation to one another.
  • the bending tool arrangement a great deal of flexibility is provided with regard to the bending operations to be performed therewith. For example, with this development, it is possible to change the die width symmetrically and asymmetrically with respect to the traversing plane, which implicitly includes an optional positioning or displacement of the two die parts in relation to the traversing plane.
  • FIG. 1 shows a bending tool assembly 1 according to the prior art, comprising a bending punch 2 and a bending die 3, wherein the bending punch 2 is arranged or held in a press bar 4 and wherein the bending die 3 is arranged in a table bar 5 and connected to this changeable fixed is.
  • the press bar 4 with the bending punch 2 is movable along a displacement plane 6 relative to the table bar 5 or bending die 3.
  • a sheet metal part 7 is inserted into the bending tool arrangement 1, in particular applied to the bending die 3.
  • the bending die has to absorb high forces during the bending deformation; in particular, the force acting on the bending punch 2 is transmitted along two contact lines 9 to the bending die 3.
  • a bending die must therefore be made of very high-strength materials to withstand the mechanical stresses to be able to withstand a correspondingly long time and thus be able to ensure a corresponding dimensional accuracy.
  • each bending die 3 having a nominal die-width 12 which can be used for a defined combination of sheet thickness, material strength and desired bending radius.
  • the die width used will usually only be approximately optimally adapted for the bending process to be performed.
  • a known bending die 3 is only usable for performing one kind of bending forming, additional bending tasks for increasing the productivity are not feasible with known bending dies or usually require the formation of a complex tool assembly from single dies.
  • FIGS. 1b and 1c shows the effects when real part parameters deviate from those ideals that underlie the bend model.
  • the sheet metal part 7 is aligned oriented so that the center line of the sheet metal part coincides with the bending line or moving plane 6 of the refilling temple, the bending punch so we contact the sheet metal part exactly along this center line and reshape. If the actual sheet metal thickness 11 is equal to the desired sheet metal thickness 14 underlying the bending model, the leg lengths a 1 and a 2 13 will be the same and in particular equal to the required nominal leg length according to the bending model.
  • Deviations in the sheet thickness and / or the material strength of the desired parameters of the bending model will lead to deviations in the bent sheet metal part, in particular, the leg lengths or possibly also the ratio of the leg lengths differ.
  • the leg lengths or possibly also the ratio of the leg lengths differ.
  • a greater bending radius will be set along the bending line 8, resulting in a greater leg length 13.
  • This effect of the sheet thickness variation is in Figure 1c shown, with the deviations have been clearly exaggerated for clarity. The same conditions are obtained with different material hardness, with a higher hardness due to the lower bending radius leads to a larger leg length.
  • FIG. 2 shows the adaptive setting method for a bending tool assembly based on a bending tool arrangement according to the invention.
  • the bending tool assembly 1 in turn comprises a press bar 4 with an arranged bending punch 2, along a traverse plane 6 can be moved relative to a bending die 3, wherein the bending die 3 is releasably longitudinally displaceable connected to a table bar 5.
  • the bending die 3 has a first 17 and second 18 die part, whose flat sides, which are preferably oriented parallel to the travel plane 6, have a spacing 12 from one another, this distance being the so-called die width w.
  • the die width is formed by the distance of the contact lines 9 of the die parts.
  • a stop device 19 is also provided, which has a stop surface 20, wherein the stop surface 20 and / or the stop device 19 is movable parallel to a feed plane 21.
  • the feed plane 21 identifies that plane which is normal to the traverse plane 6 and also corresponds to the plane on which the sheet metal part 7 is arranged for carrying out the bending deformation.
  • a drive device 22 is also present on the table bar 5, which acts via a drive means 23 on the first 17 and / or second 18 die part, wherein for example via a coupling device 24, the drive means 23 can be individually connected to the die parts.
  • a multi-part drive means 23 may be present, with which the drive effect can be individually directed to the two die parts.
  • the drive device 22 By means of the drive device 22, it is now possible to move the two die parts 17, 18 relative to the traversing plane, wherein in particular a symmetrical as well as asymmetrical adjustment or movement in relation to the traverse plane 6 is possible.
  • the die width w 12 can be increased or decreased.
  • the die width w remains the same, but the relative position relative to the traverse plane is changed.
  • the coupling 24 or the drive means 23 can now be designed, for example, such that they also form the releasable connection of the die parts 17, 18 with the table bar 5.
  • This is in particular to the advantage, since thus simultaneously with the adjustment of the Gesenkweite 12, the die parts are unlocked relative to the table bar 5 and in turn locked after adjustment of Gesenkweite to the desired value and thus for the next bending operation in the desired position to form the required Gesenkweite are fixed relative to the table bar.
  • a guide 35 may be arranged, which is a longitudinal displacement of the die parts 17, 18 in the direction parallel allows the feed plane 21, wherein means of locking a fixing of the Gesenker parts in the guide 35 and the table bar is possible.
  • the guide or the correspondingly complementarily formed receptacle on the die parts can, for example, also be designed in such a way that relief of the bending die allows longitudinal adjustment of the die parts; when loaded by the bending die, an automatic locking of the die parts in the guide takes place.
  • adjustments of the Gesenkweite or the Gesenkposition can be carried out relative to the traversing even with an already inserted sheet metal part, as soon as the forming process starts, but in particular as soon as the punch exerts pressing force on the sheet metal part, the bending die is fixed.
  • the advantage of the method according to the invention is now, in particular, that the current actual thickness 11 of the sheet metal part 7 is detected before the bending deformation is carried out and then, based on the model of the bending deformation, in the case of a deviation from a desired sheet thickness, that correction value dw determined is, by the die width w 12 must be changed in order to produce a bent part with the required leg length and the required ratio of leg lengths despite deviating sheet thickness.
  • the detection of the current actual sheet thickness can for example be done by a measuring device with a set of styli, the sheet metal part 7 inserted before inserting into the bending press in the measuring device or the measuring device is applied to the sheet metal part, and so the thickness is determined.
  • an ultrasound transponder system can also be used, for example, which is applied, for example, to the inserted sheet-metal part 7 in the region of the deformation zone on the sheet-metal part and therefore measures the actual sheet-metal thickness directly in the section substantially influencing the bending.
  • a touch device can also be arranged in the bending punch 2, which detects the sheet thickness when the bending punch is lowered, but before a pressing force is applied by the bending punch to the sheet metal part.
  • the measuring device is arranged on the bending press, for example on the bending punch, that the detection of the current thickness 11 of the sheet metal part 7 does not require any additional operating steps, but in the course of inserting or aligning the sheet metal part in the / the bending press takes place.
  • the bending deformation leads to a shortening of the sheet metal strip, whereby the so-called unwound length of the sheet metal strip from the bending model based on the sheet thickness, determine the desired leg length and the Gesenkweite. If the sheet thickness deviates from the assumed target sheet thickness, this has a direct effect on the bent leg length via the shortening factor. However, since this shortening factor also depends on the die width, a deviation of the actual sheet thickness can be corrected by adjusting the Gesenkweite, according to the inventive method that the Gesenkweite is changed according to the bending model and thus in turn formed a bent part with the desired leg length becomes.
  • this has the very special advantage that thus in each case a correct leg length can be bent, since the die width is adaptively adapted to the current target thickness of the sheet metal part.
  • this adaptation method can be carried out prior to each bending operation, so that continuously high-precision bent parts can be formed, wherein deviations of the sheet thickness substantially do not impair the bending result.
  • a further advantage of the method according to the invention lies in the fact that also cutting tolerances can be compensated since, according to a development, the model of bending deformation also includes the determination of the unwound length.
  • the stop position or the stop distance x 25 are determined.
  • the stop device 19 with the abutment surface 20 is now moved to those abutment distance x 25, so that by concern of the sheet metal part 7 in the feed plane 21 of the bending tool assembly 1 and further concerns on the stop surface 20, it is ensured that under consideration or compensation of Current actual sheet thickness is bent a bent part with the correct leg length.
  • an inaccurate cut dimension has the effect of being particularly negative in that, without correcting the stop position, some leg lengths will have a clear deviation from the nominal dimension, as a result of which the bent part is to be assessed as a whole.
  • the inventive method can now also the stop distance 25 are adapted so that the determined by the bending model stop position or the stop distance is adjusted by a correction value dx, so that a total bending part can be formed with one or more Biegeumformept, wherein the determined cutting tolerance and which is based on the bending model resulting correction value dw is divided in such a way to the individual bending transformations that a total dimensionally stable bent part is formed.
  • determining the current sheet thickness and corresponding adjustment of the die width 12 or by determining the current blank length of the sheet metal part 7 can by changing or adjusting the Gesenkweite 12 and / or change the abutment distance 25 deviations from a target sheet thickness or a desired cutting length be corrected to still be able to produce largely dimensionally accurate parts.
  • a deviating from the target hardness of the material of the sheet metal part will also lead to a non-model compliant sequence of bending deformation, in particular, another bending radius will set, which again has a direct influence on the forming leg lengths.
  • the forming leg length is detected and counteracted according to a deviation from the bending model course, for example, by the die width is already adjusted during the bending process accordingly.
  • the pressing pressure is reduced so much that an adjustment of the die parts 17, 18 relative to the table bar 5 is possible without the sheet metal part 7 in the bending tool assembly 1 slips or tilting of the die parts 17, 18 between the sheet metal part 7 and / or the table bar 5 is prevented.
  • the detection of the leg length during the bending deformation is preferably carried out contactless, for example by means of an optically or acoustically acting detection device that detects the course of movement of the aufbiegenden leg portion and determined by comparison with the bending model in case of deviation, a correction value for the Gesenkweite.
  • FIG. 3a to 3d shows on the basis of a bending deformation for forming a fold the difference of the inventive adaptive adjustment method in a bending tool assembly according to the invention in comparison to the prior art.
  • FIG. 3a and b show the state of the art with a bending tool assembly 1.
  • the bending tool assembly 1 comprises a bending punch 2 and a, for the particular application individually configured Biegegesenkan für 26, which is connected via a guide device 27 to the table bar.
  • the bending die assembly 26 now comprises a bending die 3 with a fixed predetermined die width 12, a spacer plate 28 and a rebate stop 29.
  • the individual components of the bending die assembly 26 are non-positively and / or positively connected to each other by means of a connecting means 31 and in particular form a mechanically compact unit.
  • the Biegegesenkan extract 26 is movable between a first and second fixed predetermined position to perform in a first position, the bending deformation to form the legs and perform in a second stop position the pressing of the legs to form the fold.
  • the first and second stop positions are to be set exactly to the respective bending die arrangement 26, since, due to the arrangement of the individual components of the bending die arrangement, a plurality of different possible distances between the bending die and the fold stop will be set.
  • FIG. 3a shows the first forming step in which a sheet metal part 7 is formed by applying to the Biegegesenkan für 26 and moving 32 of the punch 2 in the direction of the bending die 3 to the effect that a leg 33 is formed.
  • the bending punch 2 moves back and the bending die assembly 26 is moved by means of the guide device 27 in the second stop position as in Fig. 3b
  • the bending punch 2 is in turn moved in the direction of the Biegegesenkan für 32 until a rebate surface 34 of the punch has contact with the bent leg 33 and this to a fold flattening
  • a known Biegegesenkan für usufactore 12 has a fixed geometry, in particular, the Gesenkweite 12 is fixed, so that no correction is possible to correct a deviating from the target bending geometry of the sheet metal part can.
  • FIG. 3c and d show a bending deformation with the inventive method in combination with the bending tool assembly according to the invention.
  • a sheet metal part 7 is deformed by moving 32 of the bending punch 2 to form a leg 33. Since the current thickness was detected by the sheet metal part 7 and the die width 12 was optionally changed by the correction value dw determined from a deviation of the sheet thickness from a nominal sheet thickness, a leg 33 with the required leg length is reliably bent even in the first bending part.
  • the first die part 17 After performing the first bending deformation, for example, only the first die part 17 is changed in position, in particular it is moved in the direction of the traverse plane 6, so that the bending punch 2 with the rebate 34 flattens the bent leg 33 of the sheet metal part 7, wherein the sheet metal part on the Folding surface 30 of the first die 17 was applied.
  • the advantages of the invention training are clearly visible.
  • the first 17 and second die part 18 a stepless formation of the die width 12 is possible, in particular an optimal adaptation to the bending deformation to be carried out is thus possible.
  • the optimum die width which results from the bending model on the basis of the sheet thickness and the material strength, can be formed for each bending deformation; on the other hand, the die width can be correspondingly corrected for deviations of the sheet thickness from the nominal value, in order nevertheless to be able to carry out a correct bending deformation.
  • Biegegesenke usually a V-shaped die shape, which limits the achievable degree of bending, ie how far the legs of the sheet metal part can be bent, significantly limits.
  • the die parts of the bending arrangement according to the invention in each case one for the traversing plane 6 of Bending punch 2 preferably has parallel side surface, whereby the bending parts can be supported particularly well against the table beam 5.
  • a high load capacity of the die parts can be formed by structurally simple shaping.
  • known Biegesenke must be particularly mechanically stable formed due to the V-shaped die to prevent the risk of widening of the V-shape, and thus a different die width, resulting in significantly higher tooling costs.
  • first and second die parts may be formed identically in terms of shape and mechanical properties, thereby reducing the required different bending tool components, in particular, one can endure with one type of die part. It is also of particular advantage that the first 17 and second die part 18 can be moved individually and independently of one another in relation to the table bar 5, in which case, for example, only the first die part 17 is moved while the second die part remains in its position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (12)

  1. Procédé de réglage adaptif pour un agencement d'outils de pliage (1) pour le pliage libre de pièces en tôle (7),
    l'agencement d'outils de pliage (1) comprenant un sommier de pression (4) pouvant être équipé d'un poinçon de pliage (2) et un tablier (5) pouvant être équipé d'une matrice (3), le sommier de pression (4) étant mobile par rapport au tablier (5) le long d'un plan de déplacement (6), et
    une largeur de matrice w (12) de la matrice (3) pouvant être modifiée perpendiculairement au plan de déplacement (6), et
    l'agencement d'outils de pliage (1) comprenant un dispositif de butée (19) ayant une surface de butée (20) pour la pièce en tôle (7), et
    le dispositif de butée (19) étant disposé mobile parallèlement à un plan d'approvisionnement (21) perpendiculaire au plan de déplacement (6),
    caractérisé en ce que,
    lors de chaque opération de pliage de réalisation :
    - une épaisseur réelle de la pièce de tôle (7) est saisie,
    - un écart dt entre l'épaisseur réelle et l'épaisseur à atteindre est calculé,
    - une valeur de correction dw pour la largeur de matrice (12) est déterminée en fonction de l'écart dt de l'épaisseur à l'aide d'un système mathématique d'équations du procédé de pliage,
    - la largeur de matrice w (12) est corrigée par la valeur de correction dw,
    - une valeur de correction dx pour une position de butée ou distance de butée x (25) est déterminée et la surface de butée (20) est déplacée par rapport au plan de déplacement (6) par la valeur de correction dx, sur une position de butée x (25) par le système mathématique d'équations,
    - le pliage est effectué.
  2. Procédé de réglage adaptif selon la revendication 1, caractérisé en ce que, après l'exécution du pliage, la longueur réelle d'une aile de la tôle pliée (7) est saisie et, en cas d'écart de la longueur à atteindre, une partie dx1 pour la valeur de correction dx et/ou une partie dw1 pour la valeur de correction dw sont déterminées.
  3. Procédé de réglage adaptif selon la revendication 1 ou 2, caractérisé en ce que, dans une série de pliages, la saisie de la longueur réelle d'une aile n'est effectuée qu'après le premier pliage.
  4. Procédé de réglage adaptif selon l'une des revendications 1 à 3, caractérisé en ce que la saisie de la longueur réelle d'une aile est effectuée pendant le pliage.
  5. Procédé de réglage adaptif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la saisie de la longueur réelle d'une aile est effectuée sans contact.
  6. Procédé de réglage adaptif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que, avant la transformation par pliage, une longueur réelle développée de la tôle (7) est déterminée et, en cas d'écart de la longueur à atteindre, une partie dx2 pour la valeur de correction dx et/ou une partie dw2 pour la valeur de correction dw sont déterminées.
  7. Procédé de réglage adaptif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la matrice de pliage comprend une première partie (17) et une seconde partie (18) de matrice éloignées l'une de l'autre par la largeur de matrice (12), et la première (17) et la seconde (18) parties de la matrice étant réglables, en ce qui concerne leur positions relatives par rapport au tablier (5), parallèlement au plan d'approvisionnement (21).
  8. Procédé de réglage adaptif selon la revendication 7, caractérisé en ce que les parties de matrice (17, 18) de la matrice (3) sont réglables l'une par rapport à l'autre, en ce qui concerne leur positions relatives, par une unité d'entraînement (22).
  9. Procédé de réglage adaptif selon l'une quelconque des revendications 7 ou 8, caractérisé en ce que la première (17) et la seconde (18) parties de matrice de la matrice (3) sont réglables indépendamment l'une de l'autre.
  10. Procédé de réglage adaptif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la largeur de matrice (12) est ajustée à une largeur de matrice w déterminée par le modèle de l'opération de pliage.
  11. Procédé de réglage adaptif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que, avec le modèle de l'opération de pliage, un raccourcissement de pliage est déterminé.
  12. Procédé de réglage adaptif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la modification de la largeur de matrice (12) est effectuée pendant l'opération de pliage.
EP10714838.9A 2009-03-04 2010-03-04 Procédé de pliage libre avec une matrice réglable Active EP2403664B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3502009A AT507911B1 (de) 2009-03-04 2009-03-04 Verfahren zum freibiegen
PCT/AT2010/000065 WO2010099559A1 (fr) 2009-03-04 2010-03-04 Procédé et outil de pliage libre doté d'une matrice réglable

Publications (2)

Publication Number Publication Date
EP2403664A1 EP2403664A1 (fr) 2012-01-11
EP2403664B1 true EP2403664B1 (fr) 2015-09-16

Family

ID=42315312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10714838.9A Active EP2403664B1 (fr) 2009-03-04 2010-03-04 Procédé de pliage libre avec une matrice réglable

Country Status (3)

Country Link
EP (1) EP2403664B1 (fr)
AT (1) AT507911B1 (fr)
WO (1) WO2010099559A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109862972A (zh) * 2016-10-21 2019-06-07 诺雷力股份公司 用于压弯机的可调节压模
EP4282552A4 (fr) * 2021-01-20 2024-06-26 Amada Co., Ltd. Procédé de cintrage

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510711B1 (de) * 2011-03-11 2012-06-15 Trumpf Maschinen Austria Gmbh Biegewerkzeug und biegewerkzeuganordnung
DE102011105743A1 (de) 2011-06-24 2012-12-27 Haco N.V. Biegegesenk
AT511621B1 (de) * 2011-07-01 2013-04-15 Trumpf Maschinen Austria Gmbh Falzvorrichtung für eine biegepresse und verfahren zur durchführung einer falzung
AT512892B1 (de) * 2012-10-25 2013-12-15 Trumpf Maschinen Austria Gmbh Anordnung mit einer Biegepresse und einem Roboter sowie Verfahren zur Herstellung eines Biegeteils
AT513741B1 (de) 2013-03-28 2014-07-15 Trumpf Maschinen Austria Gmbh Biegewerkzeuge zum Vorbiegen und Zudrücken
JP2015199122A (ja) 2014-04-01 2015-11-12 株式会社アマダホールディングス プレスブレーキ用金型及びヘミング加工方法
AT517319B1 (de) * 2015-05-28 2017-06-15 Trumpf Maschinen Austria Gmbh & Co Kg Biegewerkzeug für eine Biegepresse
AT517315B1 (de) * 2015-05-28 2017-04-15 Trumpf Maschinen Austria Gmbh & Co Kg Verfahren zum Verstellen eines Formabschnittes eines Biegewerkzeuges
AT519221B1 (de) * 2016-12-06 2018-05-15 Trumpf Maschinen Austria Gmbh & Co Kg Fertigungsanlage mit einem Klemmwerkzeug sowie Verfahren zur Anpassung einer Gesamtlänge einer Biegekante des Klemmwerkzeugs
CN109530493B (zh) * 2018-10-20 2024-01-19 河南环宇玻璃科技股份有限公司 客车窗框型材校正装置
CN109500156B (zh) * 2018-12-28 2023-06-20 天津航天长征火箭制造有限公司 一种高筋厚比内网格壁板弯曲成型装置及方法
CN114951365A (zh) * 2022-04-11 2022-08-30 江苏麦斯铁机械有限公司 数控折弯机油电混合动力单元

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313620A (ja) * 1986-07-07 1988-01-20 Sumitomo Metal Ind Ltd 樹脂積層金属板の曲げ加工方法
CH680772A5 (fr) * 1989-09-11 1992-11-13 Beyeler Machines Sa
JPH03110019A (ja) * 1989-09-21 1991-05-10 Matsushita Electric Works Ltd 曲げ加工装置
JP2813108B2 (ja) * 1993-07-02 1998-10-22 新日本製鐵株式会社 帯板曲げ加工装置
FR2739580B1 (fr) * 1995-10-04 1997-12-26 Lorraine Laminage Procede et dispositif de pliage le long d'une generatrice d'un flan metallique a structure multicouche
EP0865840A1 (fr) * 1997-03-17 1998-09-23 LVD Company NV Ensemble à matrices réglables
SE9703157L (sv) * 1997-09-02 1999-03-03 Pullmax Ursviken Ab Sätt vid bockningsförfaranden

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109862972A (zh) * 2016-10-21 2019-06-07 诺雷力股份公司 用于压弯机的可调节压模
EP4282552A4 (fr) * 2021-01-20 2024-06-26 Amada Co., Ltd. Procédé de cintrage

Also Published As

Publication number Publication date
EP2403664A1 (fr) 2012-01-11
AT507911A1 (de) 2010-09-15
WO2010099559A1 (fr) 2010-09-10
AT507911B1 (de) 2010-11-15

Similar Documents

Publication Publication Date Title
EP2403664B1 (fr) Procédé de pliage libre avec une matrice réglable
DE3781887T2 (de) Adaptivsteuerungssystem fuer hydraulische abkantpresse.
DE69529526T2 (de) Verfahren zum biegen mit einer abkantpresse und abkantpresse zum ausführen dieses verfahrens
EP3233323B1 (fr) Outil de cintrage ayant un dispositif de mesure de décalage longitudinal
EP3541544B1 (fr) Procédé de fonctionnement d'une machine de cintrage
EP2917684B1 (fr) Dispositif et procédé de mesure permettant de mesurer l'épaisseur d'un objet en forme de plaque
WO2012092909A1 (fr) Procédé pour la transformation incrémentielle de structures en tôle, en particulier pour la transformation de tubes ou similaires
EP1793946A1 (fr) Procede pour realiser une piece par cintrage
EP3820631B1 (fr) Presse à former à jco à réglage élargi
EP1731237B1 (fr) Machine pour travailler de la tôle
AT512174A4 (de) Biegepresse mit verstellbarem balkenelement
DE69004234T2 (de) Hydraulische Biegepresse mit beweglichem Unterbalken.
DE69803696T2 (de) Biegepresse mit einer vorrichtung zum detektieren der wölbung der quertraverse und die zusammenarbeit mit mindestens einem bombiermittel
EP2311583A2 (fr) Procédé de détermination de l'épaisseur d'une pièce à usiner à l'aide d'une plieuse et une telle plieuse
EP2092991A2 (fr) Matrice à plier pour une presse à plier, notamment presse plieuse
EP2210680B1 (fr) Presse plieuse dotée d'une poutre d'entraînement et d'une poutre plieuse couplée élastiquement
WO2003072278A1 (fr) Procede de reduction des erreurs d'angle de pliage lors du pliage
AT518538A4 (de) Bearbeitungsmaschine zum Bearbeiten von Werkstücken
EP2634007B1 (fr) Procédé et dispositif de remplacement d'un rouleau applicateur de colle
EP2329895B1 (fr) Presse à cintrer et outil de cintrage doté d'un dispositif de retenue pour une pièce usinée
EP3041618B1 (fr) Machine de pliage et procédé de pliage d'une pièce en tôle
AT521529B1 (de) Biegevorrichtung und Verfahren zur Ermittlung zumindest eines Materialparameters bzw. Bearbeitungsparameters für eine Werkstückbearbeitungsvorrichtung
EP3643418B1 (fr) Machine à plier et son procédé de commande
DE19716435A1 (de) Verfahren zur Herstellung eines gitterrostartigen, profilierten Erzeugnisses
DE10164002B4 (de) Verfahren und Vorrichtung zum Biegen eines flächigen Werkstücks auf einer Schwenkbiegemaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110926

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 MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20121203

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B21D 5/02 20060101AFI20150402BHEP

INTG Intention to grant announced

Effective date: 20150420

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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 MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 749364

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010010303

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

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: 20150916

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: 20151217

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: 20150916

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: 20151216

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

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: 20150916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

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: 20150916

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: 20150916

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: 20160116

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: 20150916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

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: 20160118

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: 20150916

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010010303

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

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: 20150916

Ref country code: LU

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: 20160304

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: 20160304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

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

Effective date: 20160304

Ref country code: CH

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

Effective date: 20160331

Ref country code: LI

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

Effective date: 20160331

Ref country code: IE

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

Effective date: 20160304

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 749364

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

Ref country code: AT

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

Effective date: 20160304

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national 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; INVALID AB INITIO

Effective date: 20100304

Ref country code: SM

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: 20150916

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: 20150916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

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: 20150916

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502010010303

Country of ref document: DE

Representative=s name: ABP BURGER RECHTSANWALTSGESELLSCHAFT MBH, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20150916

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20190207

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20190117

Year of fee payment: 10

Ref country code: BE

Payment date: 20190123

Year of fee payment: 10

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20200401

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

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

Effective date: 20200401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

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

Effective date: 20200331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

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

Effective date: 20200304

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240304

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240306

Year of fee payment: 15

Ref country code: FR

Payment date: 20240311

Year of fee payment: 15