EP1542816B1 - Machine a cintrer - Google Patents

Machine a cintrer Download PDF

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Publication number
EP1542816B1
EP1542816B1 EP03740348A EP03740348A EP1542816B1 EP 1542816 B1 EP1542816 B1 EP 1542816B1 EP 03740348 A EP03740348 A EP 03740348A EP 03740348 A EP03740348 A EP 03740348A EP 1542816 B1 EP1542816 B1 EP 1542816B1
Authority
EP
European Patent Office
Prior art keywords
bending
machine according
setting parameter
control unit
setting
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.)
Expired - Lifetime
Application number
EP03740348A
Other languages
German (de)
English (en)
Other versions
EP1542816A1 (fr
EP1542816B8 (fr
Inventor
Wolfgang Kutschker
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.)
RAS Reinhardt Maschinenbau GmbH
Original Assignee
RAS Reinhardt Maschinenbau GmbH
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 RAS Reinhardt Maschinenbau GmbH filed Critical RAS Reinhardt Maschinenbau GmbH
Priority to EP03740348A priority Critical patent/EP1542816B8/fr
Priority to ES03740348T priority patent/ES2305478T3/es
Publication of EP1542816A1 publication Critical patent/EP1542816A1/fr
Application granted granted Critical
Publication of EP1542816B1 publication Critical patent/EP1542816B1/fr
Publication of EP1542816B8 publication Critical patent/EP1542816B8/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • 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
    • B21D5/0272—Deflection compensating 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
    • B21D5/04—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
    • B65D27/06—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents with provisions for repeated re-use

Definitions

  • the invention relates to a bending machine comprising a machine frame, a cheek and a lower cheek, both of which are held on the machine frame and movable relative to one another, held on the machine frame and movable relative to this and the upper cheek and lower cheek bending cheek with a bending beam support and a bending beam support on a controlled by a controller controllable crowning bending cheek tool.
  • Such bending machines are from the DE-A-197 36 987 known.
  • the setting of the crowning device is done in a manual manner, wherein the appropriate setting of the crowning device for a particular bending operation is determined by a series of experiments.
  • the invention has for its object to improve a bending machine of the generic type such that the setting of the shaker is faster and more accurate possible.
  • the crowning device is provided with a setting device adjustable adjusting means that with the control of at least one setting parameter for a particular bending operation during the execution of this bending operation can be determined by a measurement, and that the controller for determining the at least one adjustment parameter detects the deflection of the bending beam carrier by means of at least one sensor in the context of a measurement.
  • the determination of the bending of the bending beam carrier has the advantage that it does not require any measurement in the area of the bending beam tool and in particular no measurement of the straightening direction of the bending beam tool during the bending operation, so that in this solution the at least one adjustment parameter can be recorded particularly favorably during the bending operation.
  • the number of setting parameters may be different in the solution according to the invention.
  • the at least one adjustment parameter is a single adjustment parameter, namely the maximum adjustment parameter occurring during the specific bending operation.
  • a more precise, in particular individual bending ranges during the course of the bending operation adapted adjustment of the crowning device is possible if the crowning device during the specific bending operation is adjustable according to a plurality of setting parameters.
  • the controller sets the adjustment parameters that correspond exactly to the bending states that occur during the bending operation.
  • the bombing device is provided with an operable during a bending operation actuator, with the controller the actuator also controllable during a bending operation, at least one sensor associated with the control is provided, with the controller from setting the crowning through the Adjusting device can be determined and for a particular bending operation by the controller at least one adjustment parameter for the bombing determined in which the bending beam tool is aligned at the completion of this bending operation substantially without deflection.
  • the advantage of this addition is the fact that it has the possibility on the one hand via the controller to adjust the crowning device during a bending operation and on the other hand, the controller has the ability to determine for a particular bending operation at least one setting parameters for the bombing, in which the Biegewangentechnikmaschine ist is aligned at completion of this bending operation substantially without deflection.
  • Determining the at least one adjustment parameter by means of a measurement is conceivable in many different ways.
  • the adjustment parameters are determined by the controller by always adjusting the crowning device so that the bending beam tool remains straightened, and simultaneously with he determination of these setting parameters, a corresponding setting of the crowning device.
  • the at least one sensor detects the deflection of the bending beam carrier at a single point thereof.
  • the detection of the bending of the bending beam carrier would be possible, for example via a strain gauge, which could be arranged on the expanding side of the bending beam carrier.
  • the at least one sensor detects the deflection of the bending beam carrier relative to a reference position, so that the determination of the zero position, which is problematic in a strain gauge, can be omitted.
  • a particularly simple solution provides that the reference position is predetermined by a reference element.
  • Such a reference element can be provided in various ways.
  • a favorable solution provides that the reference element is a parallel to the bending beam carrier extended reference carrier.
  • the at least one sensor detects a relative change in position of the bending beam carrier relative to the reference carrier.
  • the deflection of the bending beam carrier can now be linked in a variety of ways with the setting parameters to be determined.
  • a particularly favorable solution due to the simplicity provides that the control determines the setting parameter for the crowning device on the basis of the deflection of the bending beam carrier and an adjustment behavior of the crowning device.
  • control detects the setting of the bombing by means of at least one of the bombing device associated position sensor.
  • the position sensor is arranged at the end of the crowning device.
  • the crowning device can be adjusted by means of the control during a bending operation in accordance with the adjustment parameter, wherein either the adjustment parameter can also be determined during the bending operation or the adjustment parameter has already been determined before the bending operation is carried out.
  • This solution has the advantage that the setting of the crowning device can be realized at least approximately so that the crowning device also approximately provides a straight bending beam tool in the bending operation.
  • controller sets the crowning device by controlling the adjusting device in accordance with the bending of the bending beam carrier that occurs during the execution of the bending operation at individual times.
  • the bombing device can be adjusted by means of the control during the detection of the adjustment parameter in accordance with the adjustment parameter, so that a direct conversion of the detected adjustment parameter into the setting of the crowning device takes place.
  • such a conversion of the detected adjustment parameter into the setting of the crowning device is also possible if the setting of the adjustment parameter is effected by a measurement of the straightening direction of the crowning device.
  • the crowning device can be set to the at least one setting parameter before the specific bending operation is carried out.
  • the controller for performing a particular bending operation determines the setting parameter for that particular bending operation while performing the same.
  • control at least approximately determines the at least one adjustment parameter before carrying out a further one of the specific bending operations.
  • the at least one adjustment parameter can be determined during the execution of a specific bending operation, but this determined adjustment parameter is used not only for the adjustment of the crowning device in this particular bending operation, but also in other of the specific bending operations, ie, for example Production of further identical parts with repeated execution of the specific bending operation, can be used.
  • control determines the at least one adjustment parameter substantially exactly before carrying out a further one of the specific bending operations, since in this case, when detected the at least one adjustment parameter in the course of a bending operation in the further bending operations, the same at least one setting parameters could be used.
  • the shoring device can be preset by means of the control before the specific bending operation is carried out.
  • An advantage would be that the presetting of at least a partial value of the at least one adjustment parameter reduces the response time of the crowning device for the adjustment and thus the adjustment of the adjustment parameter can be faster and more precise.
  • Another advantage lies in the fact that it is possible in each case in one of the specific bending operations, namely the first of the specific bending operations, to carry out the determination of the setting parameters and to carry out with these setting parameters all the other of the specific bending operations.
  • the crowning device can be preselected by the control to a value above a presumed setting parameter and then adjusted to the setting value during the Bending operation is lowered.
  • This presetting of the adjustment parameter beyond the presumed adjustment parameter, that is to say on values above it, has the advantage that there is the possibility during the bending operation of using the bending forces acting on the crowning device in addition to the force generated by the adjustment device for the crowning device shift, namely in the direction of lower values of the adjustment parameters, that is, from higher crowning in the direction of lower camber, so that thus smaller adjustment forces are required and also the crowning device can be set faster.
  • the too strong curvature at the beginning of the bending operation is not disadvantageous, as long as it is ensured that at the end of the bending process, the bending of the bending beam support corresponding camber is set.
  • the presumed adjustment parameters can be determined by the controller so that the determined after passing through a part of a bending operation associated bending angle actual adjustment parameters is used.
  • the at least one adjustment parameter once set for a bending operation continues to be used by the controller as a setting parameter in a further one of the specific bending operations, since in this case only one or a few of the specific bending operations determine the actual determination of the adjustment parameter, for example by Measure, takes place, and this one setting parameter can then be used in all other of the specific bending operations, and the time required for the measurement can be saved to determine the setting parameter.
  • FIG Fig. 1 An embodiment of a bending machine according to the invention, shown in FIG Fig. 1 comprises a machine frame 10 with side uprights 12 and 14, between which, as in Fig. 1 and 2 shown, a top cheek 16 and a bottom cheek 18 extend.
  • the lower beam 18 is fixed to the uprights 12 and 14 and the upper beam 16 relative to the lower beam 18 movable.
  • the upper cheek carries a Oberwangenwerkmaschine 20 and the lower cheek a lower cheek tool 22, between which a workpiece 24 made of flat material, such as a sheet is clamped so that from this over the Oberwangentechnikmaschine 20 and the lower cheek tool 22 projecting tabs 26 from a through the lower cheek tool 22nd and the upper beam tool 20 fixed clamping plane 28 is bendable out.
  • the bending machine is provided with a bending cheek 30 which extends between the ends of the same arranged bending cheek holders 32 and with these bending beam holders 32 is pivotable about a pivot axis 34, wherein the pivot axis 34 is preferably above the clamping plane 28 and parallel thereto.
  • the bending cheek 30 in this case acts with a bending beam tool 36 on the flap 26 of the workpiece 24 to be bent, the bending beam tool 36 being supported on a bending beam support 42 of the bending beam 30 via a crowning device 40, and the bending beam support 42 being provided for acting on the bending beam tool 36 To absorb forces and thereby keep the bending beam tool 36 dimensionally stable.
  • the bending beam tool 36 would be held in such a form-stable manner that it with its bending edge 44 exactly parallel to the pivot axis 34, regardless of the force acting on the bending beam tool 36 reaction forces during bending of the workpiece 24th
  • the bending cheek 30 extends between the lateral uprights 12, 14 over long lengths, takes place depending on the type of workpiece to be bent 24 - in particular material, workpiece thickness and workpiece length -, the position of the workpiece to be bent 24 and the angle to be bent more or less severe bending of the bending beam support 42 and thus a corresponding deflection of the bending beam tool 36, if not counteracted with the crowning device 40.
  • the crowning device 40, over which the bending beam tool 36 is supported on the bending beam carrier 42 is designed so that they, as is apparent from Fig.
  • the crowning device 40 provided with successively arranged pairs of wedges 46 1 to 46 n , each comprising a lower, fixedly seated on the bending beam support 42 wedge body 48a and an upper seated on this wedge body 48b, with their facing wedge surfaces 50a and 50b sliding abut each other.
  • the upper wedge body 48b are 1 to 48 bn in a longitudinal direction 54 of the crowning device 40, which also corresponds to a longitudinal direction of the bending beam 30, with respect to the lower wedge bodies 48a 1 to 48a n and between the bending beam tool 36 and the upper wedge bodies 48b 1 to 48b n arranged bending cheek tool holder 56 slidably, wherein in each case in the longitudinal direction 54 successive upper wedge body 48b abut each other, so that all the upper wedge body 48b are displaced simultaneously and by the same path in the longitudinal direction 54.
  • crowning device 40 By such adjustability of the crowning device 40, it is possible to compensate different degrees of deflection of the bending beam support 42 in the direction away from the pivot axis 34 in a corresponding manner to different degrees by the bombing 40, so that approximately the bending edge 44 can be adjusted so that it extends approximately parallel to the pivot axis 34 and thus also to the bending line.
  • a generally designated 60 actuating device which comprises the respective end-side wedge pairs 46 1 and 46 n associated hydraulic cylinders 62 and 64 which act on pressure bodies 66 and 68, the respective upper wedge body 48 b 1 and 48 b n , wherein each one of the hydraulic cylinders 62 or 64 is effective.
  • the hydraulic cylinder 62 is effective
  • the hydraulic cylinder 64 is effective
  • the adjusting device 60 For driving and operating the two hydraulic cylinders 62 and 64, the adjusting device 60 is still provided with a hydraulic control 70, via which the two hydraulic cylinders 62 and 64 can be acted upon by hydraulic medium under control.
  • the hydraulic control ring 70 corresponds to a controller 72 for the bending machine.
  • control 72 is able to detect the deflection of the bending beam carrier 42.
  • the bending beam support 42 is formed as a hollow body, so that in the bending beam support 42, a reference support 80 can be arranged, which also extends in the longitudinal direction 54 of the bending beam support 42 substantially over its length and in the region of its two ends 82 and 84 on the bending beam support 42 is held near its end connected to the bending cheek holders 32 end portions 86, 88.
  • the reference carrier 80 extends within the bending beam support 42 such that it is not subjected to any stress and thus can not bend with the bending beam support 42 when loaded during a bending operation.
  • the reference carrier 80 thus represents a geometric reference against which the deflection of the bending beam support 42 can be determined.
  • a first sensor 90 connected thereto is preferably provided, which is connected, for example, to the bending beam carrier 42 via a holding angle 92.
  • the first sensor 90 detects a distance between this and a lower edge 94 of the reference carrier 80, wherein this distance increases with increasing Deflection of the bending beam support 42 is increasingly larger, so that the detected by the first sensor 90 distance from the lower edge 94 of the maximum deflection of the bending beam support 42 corresponds.
  • the first sensor 90 connected to the controller 72 thus provides a measure of the maximum deflection of the bending beam carrier 42 upon application of bending forces to the bending beam tool 36.
  • the controller 72 is able to determine adjustment parameters E for the crimping device 40 and to control the hydraulic control 70 accordingly so that hydraulic fluid is applied to the appropriate hydraulic cylinder 62 or 64.
  • the respective outermost upper wedge bodies 48b 1 and 48b n second sensors 100 associated each having a position of the outermost upper wedge body 48b 1 and Determine 48b n relative to a fixed point 102 which is stationary relative to the bending beam support 42, preferably an end portion 86 and 88 thereof is arranged.
  • the controller 72 By means of the second sensors 100, it is thus possible for the controller 72 to detect whether the setting device 60 has adjusted the crowning device 40 in accordance with the predetermined setting parameter E.
  • each required for the setting of the crowning 40 setting parameter E to the corresponding deflection D of the bending beam support 42 can in a calibration process, in each of which the straight direction of the bending beam tool 36 is achieved at different load, set and in the controller 72 in Form of a table.
  • control is able to determine with appropriate different deflections D of the bending beam support 42 corresponding adjustment parameters E for the bombing 40, in which the bombing device 40 acts on the bending beam tool 36 that this with the bending edge 44 is substantially rectilinear and parallel to the pivot axis 34 and thus runs parallel to the bending line.
  • the setting of the crowning device 40 can take place in different operating modes, as in Fig. 6 shown.
  • Fig. 6a is the deflection D of the bending beam support 42 in response to a bending angle W, that is, a pivot angle about the pivot axis 34, shown.
  • the deflection D when bending up to an angle of, for example, 90 °, the deflection D initially increases approximately linearly with the bending angle W in a first bending angle region B1 and then passes, for example, at a bending angle W of approximately 4 ° into a second bending region B2, in which with increasing bending angle W only a small approximately linear increase in the deflection D of the bending beam support 42 takes place with increasing bending angle W.
  • the transition from the bending region B1 to the bending region B2 is related to the fact that when the yield strength of the material of the workpiece 24 is exceeded, the forces acting on the bending beam tool 36 increase only slightly with increasing bending angle W.
  • the controller 72 can now specify different setting parameters.
  • a first operating mode of the setting parameter E can be adjusted exactly the course of deflection D following by the controller 72, provided that the actuator 60 operates at a sufficiently high speed to a fast passage through the bending angle W a correspondingly fast adjustment reach the crowning device 40.
  • the setting of the setting parameter E takes place with a certain delay, or a certain following error, as is shown by the curve 1 in FIG Fig. 6b is shown, so that the adjustment parameter E the values corresponding to the deflection D in the bending region B2 reaches only from a bending angle W of about 5 °, but then until reaching the maximum bending angle W of the adjustment parameter E of the deflection D follows.
  • a specification of the adjustment parameter E in the first operating mode according to the curve 0 or in the second operating mode of the curve 1 in FIG Fig. 6b is usually done when the particular bending operation was performed by the bending machine for the first time, since in such a case usually the controller 72 has no reference values for the resulting deflection D of the bending beam support 42 is present.
  • bending operations are not only carried out once in the bending machines according to the invention, but the same specific bending operation is carried out several times in succession on a new workpiece 24.
  • the controller 72 already has maximum values for the setting parameter E in this bending operation due to the preceding bending operations.
  • a third operating mode - as in Fig. 6b represented by the curve 2 - the controller 72 before the start of the bending operation already make a presetting of the crowning device 40 with a setting parameter E, which is below the maximum value.
  • This adjustment parameter E is maintained as a constant value until, due to the deflection D of the bending beam support 42, this adjustment parameter E is reached and subsequently adapted to further increase the deflection D, although a following error may still occur in this respect, but this is rapid in the bending region B2 decreases, so that towards the end of the bending operation of the adjustment parameter E corresponds to the self-adjusting deflection of the bending beam support 42.
  • the adjustment of the adjustment parameter E can also be made for a first bending of a workpiece 24 according to a certain bending operation corresponding to the third and fourth operating modes, that is, curves 2 and 3, respectively of the Fig. 6b , respectively.
  • the controller 72 knows the final value of the adjustment parameter E to be set from a preceding bending operation, the determination of the deflection D of the flexible support 42 can be completely dispensed with even during subsequent bending operations and the final value of the adjustment parameter E determined during a first bending operation fixed in the subsequent bending operations be set, as in a fifth operating mode, in Fig. 6b represented by the curve 4 can be seen.

Claims (22)

  1. Cintreuse comprenant
    un bâti de machine (10),
    une joue supérieure (16) et une joue inférieure (18), qui sont toutes deux maintenues contre le bâti de machine (10) et qui peuvent être déplacées l'une vers l'autre dans un mouvement relatif,
    une barre de cintrage (30) maintenue contre le bâti de machine (10) et pouvant être déplacée vers ce dernier ainsi que vers la joue supérieure (16) et la joue inférieure (18) dans un mouvement relatif, dotée d'un porte-barre de cintrage (42) et d'un outil de barre de cintrage (36) soutenu contre le porte-barre de cintrage (42) par le biais d'un dispositif de bombage (40) pouvant être commandé par une commande (72),
    caractérisée en ce que le dispositif de bombage (40) est doté d'un dispositif de réglage (60) pouvant être réglé en fonction d'un paramètre de réglage (E), en ce que la commande (72) permet de déterminer l'au moins un paramètre de réglage (E) pour une opération de cintrage donnée pendant la réalisation de cette opération de cintrage par une mesure, et en ce que la commande (72) destinée à déterminer l'au moins un paramètre de réglage (E) détecte dans le cadre d'une mesure la flexion du porte-barre de cintrage (42) au moyen d'au moins un capteur (90).
  2. Cintreuse selon la revendication 1, caractérisée en ce que le dispositif de bombage (40) est doté d'un dispositif de réglage (60) pouvant être exploité pendant une opération de cintrage, en ce que la commande (72) permet de commander le dispositif de réglage (60) également pendant une opération de cintrage, et en ce que l'au moins un paramètre de réglage (E) pour le dispositif de bombage (40) peut être déterminé par la commande (72) pour une opération de cintrage donnée, dans le cadre duquel l'outil de barre de cintrage (36) est orienté essentiellement sans flexion à la fin de cette opération de cintrage.
  3. Cintreuse selon la revendication 2, caractérisée en ce que l'au moins un paramètre de réglage (E) est le paramètre de réglage (E) maximal apparaissant pendant l'opération de cintrage donnée.
  4. Cintreuse selon la revendication 2 ou 3, caractérisée en ce que le dispositif de bombage (40) peut être réglé pendant l'opération de cintrage donnée en fonction d'une pluralité de paramètres de réglage (E) .
  5. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un capteur (90) détecte la flexion du porte-barre de cintrage (42) à un seul endroit de ce dernier.
  6. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un capteur (90) détecte la flexion du porte-barre de cintrage (42) par rapport à une position de référence (94).
  7. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que la position de référence (94) est prédéfinie par un élément de référence (80).
  8. Cintreuse selon la revendication 7, caractérisée en ce que l'élément de référence est un support de référence (80) s'étendant de manière parallèle par rapport au porte-barre de cintrage (42).
  9. Cintreuse selon la revendication 8, caractérisée en ce que l'au moins un capteur (90) détecte une modification relative de la position du porte-barre de cintrage (42) par rapport au support de référence (80).
  10. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que la commande (72) partant de la flexion (D) du porte-barre de cintrage (42) et d'un comportement de réglage du dispositif de bombage (40) détermine le paramètre de réglage (E) pour le dispositif de bombage (40).
  11. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que la commande (72) détecte le réglage du dispositif de bombage (40) au moyen d'au moins un capteur de position (100) associé au dispositif de bombage (40).
  12. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de bombage (40) peut être réglé au moyen de la commande (72) pendant une opération de cintrage en fonction du paramètre de réglage (E).
  13. Cintreuse selon la revendication 12, caractérisée en ce que la commande (72) règle le dispositif de bombage (40) par commande du dispositif de réglage (60) en fonction de la flexion (D) du porte-barre de cintrage (42) se réglant pendant la réalisation de l'opération de cintrage à des moments isolés.
  14. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de bombage (40) peut être réglé en fonction du paramètre de réglage (E) au moyen de la commande (72) pendant la détection du paramètre de réglage (E).
  15. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de bombage (40) peut être réglé sur l'au moins un paramètre de réglage (E) avant la réalisation de l'opération de cintrage donnée.
  16. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de bombage (40) peut être réglé à chaque état de fonctionnement en fonction du paramètre de réglage (E).
  17. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que la commande (72) détermine au moins à peu près l'au moins un paramètre de réglage (E) avant la réalisation d'une des autres opérations de cintrage données.
  18. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que la commande (72) détermine de manière essentiellement exacte l'au moins un paramètre de réglage (E) avant la réalisation d'une des autres opérations de cintrage données.
  19. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de bombage (40) peut être préréglé avant la réalisation de l'opération de cintrage donnée au moyen de la commande (72).
  20. Cintreuse selon la revendication 19, caractérisée en ce que le dispositif de bombage (40) peut être préréglé au moyen de la commande (72) à une valeur supérieure à un paramètre de réglage (E) supposé et ensuite être abaissé au paramètre de réglage (E) réel pendant l'opération de cintrage.
  21. Cintreuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le paramètre de réglage (E) supposé peut être déterminé par la commande (72) de telle sorte que le paramètre de réglage (E) réel déterminé soit pris en compte après réalisation d'une partie d'un angle de cintrage associé à une opération de cintrage.
  22. Cintreuse selon la revendication 19, caractérisée en ce que l'au moins un paramètre de réglage (E) déterminé une fois pour une opération de cintrage continue d'être utilisé comme paramètre de réglage (E) par la commande (72) lors d'autres opérations de cintrage données.
EP03740348A 2002-09-26 2003-06-26 Machine a cintrer Expired - Lifetime EP1542816B8 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03740348A EP1542816B8 (fr) 2002-09-26 2003-06-26 Machine a cintrer
ES03740348T ES2305478T3 (es) 2002-09-26 2003-06-26 Maquina plegadora.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP10245777 2002-09-26
DE10245777A DE10245777A1 (de) 2002-09-26 2002-09-26 Biegemaschine
EP03740348A EP1542816B8 (fr) 2002-09-26 2003-06-26 Machine a cintrer
PCT/EP2003/006731 WO2004033125A1 (fr) 2002-09-26 2003-06-26 Machine a cintrer

Publications (3)

Publication Number Publication Date
EP1542816A1 EP1542816A1 (fr) 2005-06-22
EP1542816B1 true EP1542816B1 (fr) 2008-05-21
EP1542816B8 EP1542816B8 (fr) 2008-12-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740348A Expired - Lifetime EP1542816B8 (fr) 2002-09-26 2003-06-26 Machine a cintrer

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DK (1) DK1542816T3 (fr)
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WO2006095646A1 (fr) * 2005-03-08 2006-09-14 Pioneer Corporation Dispositif et procede d’enregistrement d’informations; programme informatique, et support d’enregistrement d’informations
DE102008025351A1 (de) 2008-05-27 2009-12-03 Hans Schröder Maschinenbau GmbH Umformmaschine
SI23098A (sl) 2009-07-02 2011-01-31 Filip Osvald Kleparski krivilni stroj
NL2006854C2 (nl) 2011-05-26 2012-12-05 Wila Bv Werkwijze en inrichting voor het compenseren van afwijkingen bij een vervormende bewerking tussen twee balken van een pers.
CN102581084B (zh) * 2012-01-16 2014-05-07 滕州市三合机械股份有限公司 磁液复合数控折弯机
TR201203770A2 (tr) * 2012-04-03 2012-12-21 Durmazlar Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Yağlamalı bombeleme mekanizması.
CN102716946B (zh) * 2012-06-18 2014-07-02 天津力神电池股份有限公司 折弯装置
USD755861S1 (en) * 2014-08-15 2016-05-10 Trumpf Gmbh + Co. Kg Bending machine
JP1539124S (fr) * 2014-08-15 2015-11-30
EP3706930A4 (fr) * 2017-11-06 2021-07-07 Hershberger, Nelson Dwayne Machine à plier
DE102018104776B4 (de) 2018-03-02 2023-09-21 Universität Siegen Vorrichtung zum Schwenkbiegen eines Bleches
DE102019123308A1 (de) * 2019-08-30 2021-03-04 Universität Siegen Vorrichtung und Verfahren zum Schwenkbiegen eines Werkstückes
DE102022119618B3 (de) * 2022-08-04 2023-12-28 Hans Schröder, Maschinenbau, Gesellschaft mit beschränkter Haftung Schwenkbiegemaschine zur Erzeugung eines Hohlumschlags an einem Blech und Blechbiegeverfahren

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DE2534664A1 (de) * 1975-08-02 1977-02-10 Fastenrath Fasti Werk Vorrichtung zum konvexen durchbiegen von werkzeugschienen an abkantpressen oder schwenkbiegemaschinen
FR2507507B1 (fr) * 1981-06-16 1986-07-04 Promecan Sisson Lehmann Dispositif de bombage d'un porte-outil d'une presse plieuse ou analogue
FR2597398B1 (fr) * 1986-04-16 1990-12-07 Favrin Pierre Presse plieuse a tablier pivotant
JPH072088Y2 (ja) * 1988-11-15 1995-01-25 株式会社小松製作所 曲げ機械の工具位置制御装置
DE3935659C3 (de) * 1989-10-26 1997-01-02 Reinhardt Gmbh Maschbau Vorrichtung zum Biegen eines Bleches
DE19735793C2 (de) * 1997-08-18 2001-07-12 Wolfram Hochstrate Schwenkbiegemaschine

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EP1542816A1 (fr) 2005-06-22
EP1542816B8 (fr) 2008-12-24
US20050160781A1 (en) 2005-07-28
WO2004033125A1 (fr) 2004-04-22
US7234332B2 (en) 2007-06-26
JP2006500224A (ja) 2006-01-05
WO2004033125A8 (fr) 2004-07-22
DE50309893D1 (de) 2008-07-03
PT1542816E (pt) 2008-06-19
DK1542816T3 (da) 2008-09-08
DE10245777A1 (de) 2004-04-08
ES2305478T3 (es) 2008-11-01
ATE395991T1 (de) 2008-06-15

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