EP2017020A2 - Procédé et plieuse destinés à la compensation de la déformation en flexion de pièces de cette plieuse - Google Patents

Procédé et plieuse destinés à la compensation de la déformation en flexion de pièces de cette plieuse Download PDF

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Publication number
EP2017020A2
EP2017020A2 EP08008324A EP08008324A EP2017020A2 EP 2017020 A2 EP2017020 A2 EP 2017020A2 EP 08008324 A EP08008324 A EP 08008324A EP 08008324 A EP08008324 A EP 08008324A EP 2017020 A2 EP2017020 A2 EP 2017020A2
Authority
EP
European Patent Office
Prior art keywords
wedge
wedges
bending machine
machine according
lifting
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.)
Withdrawn
Application number
EP08008324A
Other languages
German (de)
English (en)
Other versions
EP2017020A3 (fr
Inventor
Thomas Fehrenbach
Frank Schwab
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.)
EHT Werkzeugmaschinen GmbH
Original Assignee
EHT Werkzeugmaschinen 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 EHT Werkzeugmaschinen GmbH filed Critical EHT Werkzeugmaschinen GmbH
Publication of EP2017020A2 publication Critical patent/EP2017020A2/fr
Publication of EP2017020A3 publication Critical patent/EP2017020A3/fr
Withdrawn legal-status Critical Current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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection

Definitions

  • the invention relates to a method for compensating the bending of parts of a bending machine, in particular for crowning table and / or ram and / or tools, wherein relatively movable wedges are shifted more or less relative to each other depending on the extent of the desired compensation or crowning.
  • the invention further relates to a bending machine, in particular stamping press or folding machine, with a bending tool, in particular with a punch or with a bending cheek, and with a counterpart such as die or die or lower tool with hold-down, wherein means for compensating for the bending of parts of this bending machine, in particular a crowning device, with superimposed, relative to each other differently adjustable or displaceable wedges or wedge pieces is provided, in particular for carrying out the method mentioned above.
  • the method mentioned above is characterized in that before the displacement of the wedges or a force is exerted by the at least one of the wedges is relieved or raised, that thereafter carried out the relative displacement and then the discharge or Lifting force is reduced or canceled or switched off.
  • the force for relieving or lifting the wedge (s) may be applied mechanically and / or hydraulically and / or pneumatically and / or magnetically and / or through air or gas or liquid introduced below or between the wedges.
  • any means and measures can be used individually or in combination, to bring about the relief of the wedge to be moved.
  • an upper wedge in use position relieved or raised against the underlying wedge and then moved the lower wedge and then frees the upper wedge from the lifting force and / or lowered to the lower wedge. If the upper wedge is lifted with a pair of wedges, the wedge underneath can be moved accordingly smoothly. After lowering the upper wedge then results in the desired compensation of a supported on this wedge assembly part of the bending machine, for example, the overlying tool.
  • the bending machine defined at the outset can be characterized by the fact that, on the upper and / or lower wedge or wedge piece, a lifting device compensating for at least part of the weight of the respective wedge or wedge piece engages during the relative displacement of the superimposed wedge pieces or wedges is effective and in use of the bending machine ineffective or off.
  • the lifting device can thus be designed or dimensioned so that it lifts the entire weight of a wedge with a resting structure on it, which is a particularly smooth adjustment of the underlying wedge allowed, after which the upper wedge can be lowered again.
  • the upper wedge can be supported and relieved by means of the lifting device, but the lower wedge still apply the rest of the lifting force during its displacement.
  • such a small drive is sufficient for the displacement of the lower wedge that this can be accommodated in an advantageous manner, possibly even within the wedge bearing, for example, directly under this wedge or its bed in a corresponding recess.
  • the lifting force of the lifting device can be adjustable, adjustable and / or off and on. Thus, the best possible adaptation to different operating conditions is possible.
  • the lifting device may exert a force exerting the weight of the wedge acted upon by it - optionally with superstructures above it - and may be provided for lifting the wedge or wedge piece acted upon by it, in particular by a predetermined amount. Stiction and also a sliding friction between the two wedges is practically avoided.
  • the wedge slopes provided between the two wedges which can be adjusted relative to one another can be selected such that the wedges rest on one another in the position of use with self-locking. At very steep wedge angles, the vertical force acting on these wedges could lead to an unwanted displacement of the wedges and thereby completely or partially nullify the desired crowning or compensation of deformations. By choosing the wedge angle in the field of self-locking this can be prevented without having to provide additional means and measures, so that an unwanted wedge displacement could be avoided.
  • the wedge surface can extend at a greater angle than the self-locking angle, in particular at an angle greater than 6 °, and the surfaces interacting with one another the wedges or wedge pieces can be roughened in such a way that even with such a larger wedge angle self-locking exists or is present.
  • the lifting device may have at least one or two plungers or spindles or actuators or the like which are movable transversely to the extent of the wedges or wedge surfaces and which act in particular on the respective wedge pieces located at the top.
  • the lifting device can be designed very simple, with at least two plungers are preferred to the lifting force as evenly as possible to transfer to the wedge to be lifted.
  • the respective lower wedge piece of the crowning device can have at least one or more oblong holes oriented in the direction of displacement, through which one or more plungers or the like act on a wedge piece located above it.
  • the lower wedge piece can be adjusted relative to the passing through ram or the like actuating means in the desired manner, because the one or more slots are oriented in the direction of displacement, so the relative movement to the fixed rams or the like is easily possible.
  • An overhead wedge piece acting plunger or the like can also attack bypassing the lower wedge on this upper wedge or wedge piece, so that at this lower wedge piece no slots or long slots are required.
  • the plunger may be guided past the end faces of the underlying wedge piece and act on the upper wedge piece, wherein the lower wedge piece has enough space between the plungers for the sliding movement due to its shorter length.
  • a further advantageous embodiment of the invention may provide that the lifting device or belonging to it plunger or actuating means on the one hand act on the upper wedge from below and on the other hand engage with a paragraph or collar or plate in the starting position by far the lower wedge so that when pressed the plunger or the like in the stroke direction first of the upper and then the lower wedge - from the support surface - raised and thereby all wedges of the shaker are lifted from them in the initial position contacting surfaces. Accordingly, they can then easily relative to each other or the lower wedge are moved relative to the upper wedge and placed in a position in which the compensation of bending of parts of a bending machine can be done in an optimal manner.
  • An embodiment of the invention may provide that the lifting device is designed as an air or medium cushion and that supply lines for the air or the medium are provided to the parting surfaces between the wedges and / or between the lower wedge and its support, wherein the wedges in a they are mounted medium-tight enclosing housing or sub-housing. By brought especially between the wedges medium these can also be lifted from each other. Thus plungers can be saved. It is particularly easy to mitzubenutzen the medium used to lift the upper wedge also for lifting the lower wedge to make the mutual adjustment of the two wedges friction or smooth.
  • the lifting device has a mechanical part, in particular for the upper wedge, and an air or medium cushion for the lower wedge.
  • the advantages of the different means for lifting the wedges can be conveniently combined.
  • the greater force can act on the upper wedge via a mechanical part, so that for the additional lifting of the lower wedge a medium cushion is sufficient in which a lower pressure is required than when the upper wedge are raised with a structure thereon would.
  • one of the wedges or wedge pieces may include a drive motor that cooperates with a threaded spindle supported on an inner wall of the wedge receiving housing.
  • a working cylinder is arranged and the cylinder itself or the piston rod from the wedge against the direction of displacement extendable and is supported on a wall or a projection of the wedge housing receiving.
  • the corresponding actuators may also be arranged outside the wedges and act on these in each case from the outside in the direction of displacement.
  • the lifting device for performing the compensation of deflections or the crowning can be actuated before or during a bending operation.
  • the actuation is prior to a bending operation, because during the bending process, a correspondingly greater force against the bending force is used to relieve or lift the wedge pieces or.
  • An expedient structural embodiment of the bending machine according to the invention can provide that in each case at least one pair of relatively adjustable wedges or Wedge pieces is arranged in a housing part and a plurality of such housing parts modular and continuing as a crimping device are composing. This allows the use of the device to compensate for deflections or to camber to different machine sizes easily adapt.
  • This equipment differently sized benders with the inventive curving device is particularly versatile applicable when each having at least one pair of wedge pieces containing a plurality of modular housing parts each have a matching dimension. Depending on the size of the machines to be equipped, the user can then combine more or less such modular housing parts and thereby design differently sized devices in the increments of the respective length dimension.
  • the direction of the sliding movement of the at least one wedge or wedge piece can be oriented transversely or at right angles to the bending line and / or for the orientation of the bending tool, in particular designed as a die and male or punch.
  • the wedges and wedge pieces could also be oriented and displaceable in the direction of the bending line, but with a use of transverse to the bending line oriented and movable wedge pieces, especially with relatively narrow wedge pieces a very accurate adaptation to different deflections by different degrees of displacement of the individual wedges and Wedge pieces can be achieved.
  • the lifting device also above the wedges or wedge pieces can be arranged and the upper wedge can be pulled up to relieve or lift off the lower wedge.
  • the upper wedge may in particular be positively connected to a cover of the wedges or the housing and this cover be movable upwards.
  • the connection can be made for example via a sliding or T-slot, so that the upper wedge is not only liftable, but also in the desired direction is also displaced.
  • the cover it would also be conceivable for the cover to be liftable from below, as a result of which the wedge, which is displaceable with it in the displacement direction but which is positively connected, would also be relieved or liftable.
  • the lifting device arranged in particular above the wedge arrangement may have a support in relation to the lower wedge or the housing, which can be acted on by a force to lift the cover and / or the upper wedge and is designed in particular as a piston, spindle or actuator. If, for example, pressure is exerted on this piston with a piston having a piston inside the cover, while the piston rod is supported on the lower wedge and / or the housing, this leads to the corresponding lifting movement of the cover and thus of the upper wedge connected to it that this can then move in its positive guide relative to the cover in the desired position relative to the lower wedge.
  • the upper wedge may be shorter than the underlying, in this case non-displaceable wedge and in the direction of displacement of the upper wedge, a clearance for the displacement of the upper wedge may be provided. It will be appreciated that the increase in the cross-sectional height of the two superimposed wedges can be effected either by displacement of the lower wedge relative to the upper or by displacement of the upper wedge relative to the lower or possibly also by displacement of both wedges relative to each other.
  • a working cylinder, a spindle, an actuator or other actuating means for its displacement relative to the other wedge, in particular transverse to the bending line may be provided.
  • the means for displacing the wedge may be designed in an analogous manner, such as a displacement device for displacing the lower wedge when it is shorter and can be moved.
  • Serving for raising or pulling up the upper wedge lifting device may be arranged in or on the upper cover of the housing and serving for lifting push rods, tappets, threaded spindles or the like actuating means can enforce the upper wedge on oriented in the direction of slotted holes or on the upper wedge each end in particular be passed by a distance.
  • a bending machine designated as a whole by 1 is designed in the embodiment as a press bending press and has a punch 2 and a counterpart thereto, namely a die or a die 3, hereinafter also simply called die 3.
  • the bending machine 1 has an in Fig. 2 as a whole denoted by 4 means for compensating the deflection of parts of this bending machine 1, namely a bombing on, which is also referred to below as "crowning device 4".
  • Stamp 2 and die 3 can run over a greater length than drawn.
  • This crowning device 4 has approximately corresponding DE 196 81 349 T1 .
  • Fig. 7 arranged one above the other, relative to each other differently adjustable or displaceable wedges or wedge pieces 5 and 6, wherein on the basis of Fig. 3 to 11 it is clear that the respective upper wedge 5 only performs a lifting movement, but no movement transverse to the bending line, while the lower wedge 6 is shorter and in the receiving housing 7 for the two wedges 5 and 6 a sliding chamber 8 between its lower end face and the housing wall and thus in the direction of the arrow Pf 1 in Fig. 3 can be moved. In a known manner, a displacement of the wedge 6 in the space 8 to a lifting movement of the wedge 5, so that occurring on the die 3 too strong bending forces can be compensated.
  • FIG. 10 shows that a lifting device compensating for at least part of the weight of the respective wedge or wedge piece 5, which will be explained in more detail below, engages in each case on the upper wedge or wedge piece 5, which during the relative not yet shown in the figures Displacement of the superimposed wedges or wedge pieces is effective and ineffective or switched off when using the bending machine 1.
  • the lower wedge 6 is exerted relative to the upper wedge 5 for the raising of a force by which at least this upper wedge 5 is relieved or lifted, so that the then taking place relative displacement of the lower wedge piece 6 requires little force. If the desired setting is reached, the lifting force can be reduced or turned off, so that then the wedges 5 and 6 are in the new position relative to each other and due to the shift performed overall have a greater height, so to be feared or expected too strong bends, for example compensate the die 3.
  • the lifting force of the lifting device can be adjustable, adjustable and / or off and on, which can be done by appropriate controls in adaptation to the machine cycle, which are not shown in detail for the sake of simplicity.
  • the lifting device exerts a force exerted by the weight of the acted upon by her wedge 5 and possibly on this superstructure bodies and serves to lift the acted upon by her wedge 5 or wedge piece by a predetermined amount, so that is an upper in use position Not only relieves wedge 5 relative to the underlying wedge 6, but can even be raised at least to the desired compensating position, after which the lower wedge 6 in the direction of the arrow Pf 1 according to Fig. 3 can be moved into the space 8 without a frictional force must be overcome between the two wedges.
  • the upper wedge 5 is then freed again from this force, it can thus be supported again on the lower wedge 6 or lowered onto it, whereupon the two wedges 5 and 6 effect the desired compensation of a deflection in the region of the die 3 of the bending machine 1 ,
  • the wedge slopes are chosen at the contacting surfaces so that the wedges 5 and 6 lie on each other in the use position with self-locking so that they can not slip out of the set position later under the bending load.
  • the wedge surfaces can thereby run at a larger angle than the usual self-locking angle of about 6 ° when the cooperating surfaces of the wedges 5 and 6 are roughened such that even with a larger wedge angle is self-locking.
  • Fig. 2 . 4 . 6, 7 and 10 are provided as essential parts of the aforementioned lifting device two movable transversely to the extension of the wedges 6 plunger 9, each attacking on the overhead wedge piece 5, so in their operation from bottom to top of the upper wedge 5 in the manner already described by the lift off lower wedge 6.
  • the respective lower wedge piece 6 of the crowning device 4 has slotted holes 10 oriented in the direction of displacement, through which the rams 9 impinge on the wedge piece 5 located above them and which, in spite of the ram 9, permit the displacement of the wedge piece or wedge 6 in the described manner and direction.
  • the elongated holes 10 extend in the direction of displacement, so that the lower wedge 6 in spite of the plunger 9 can be easily ver or adjusted.
  • a modified embodiment shows Fig. 7 in which the plunger 9 acting on an upper section 5 acts, bypassing the lower wedge 6, on this upper wedge 5 or wedge piece, this being achieved in that the two plungers are respectively arranged in the region of the walls of the housing 7 and the lower one Wedge 6 between these pestles 9 is and is displaceable.
  • FIG. 6 A special embodiment shows Fig. 6 in which the plunger belonging to the lifting device 9 on the one hand act on the upper wedge 5 from below and on the other hand with a paragraph or collar or plate 11, the lower wedge 6 engage in the starting position by far, so that upon actuation of the plunger 9 initially the upper and then also raised the lower wedge 6 and thereby all wedges 5 and 6 are lifted from them in the initial position-contacting surfaces, as in Fig. 6 is shown. It is clear that this then allows a particularly smooth adjustment, especially of the lower wedge 6, which in the illustration according to Fig. 6 not yet moved, but is already free and can be moved accordingly smoothly to the right in the direction of arrow Pf 1.
  • each case includes a piston drive, which is shown schematically in the above figures, wherein the respective piston 12 engages the lower end of the respective plunger 9 directly.
  • a modified lifting device which is designed as an air or medium cushion, and it can be seen supply lines 13 and 14 for the air or for the medium to the separating surfaces between the wedges 5 and 6 and between the lower wedge 6 and its support surface, wherein the Lines 13 are also guided by the lower wedge 6 upwards and can conduct air between the two wedges 5 and 6, while the leads 14 act on the lower wedge 6 from the bottom, so that at sufficient pressure, the mentioned air or media cushion the Can lift wedges 5 and 6.
  • the wedges 5 and 6 are mounted in the enclosing housing 7 or a sub-housing, which is medium-tight in this case.
  • the lifting device has a mechanical part, namely plunger 9 for the upper wedge 5 and leads 14 for an air or medium cushion for the lower wedge 6.
  • the mechanical with the pneumatic or hydraulic lifting can also be combined.
  • each of the lower wedge 6 after lifting the upper wedge 5 is displaced and therefore the actuators explained below on this Attack wedge 6
  • Fig. 8 shows a solution with a located in the lower wedge 6 spindle motor 15 whose rotation relative to the fixed spindle 16 leads to the displacement of the wedge 6.
  • Fig. 9 shows a arranged in the interior of the lower wedge 6 or molded cylinder 17 with a piston 18 supported on a wall of the housing, so that at a corresponding pressure of the lower wedge 6 can be moved.
  • FIG. 11 A reverse arrangement shows Fig. 11 in which the piston 18 is arranged in an outer cylinder 17 and the piston rod acts through the wall of the housing 7 through the lower wedge 6.
  • these different actuators are in each case in areas of the wedges 5 and 6, the are not provided with the plungers 9, so that the raising of the upper wedge 5 and the displacement of the lower wedge 6 do not lead to mutual interference or collisions.
  • Fig. 1 is still indicated that in each case at least one pair of relatively adjustable wedges or wedge pieces 5 and 6 arranged in a housing part 7 and a plurality of such housing parts 7 may be modular and continuous with each other under a top cover 19 as a shaker 4, wherein the respective at least one Pair of wedge pieces 5 and 6 containing a plurality of modular composite housing parts 7 in the exemplary embodiment each have a matching dimension or length, so that the crowning device 4 can be adapted to different sized bending machines 1.
  • the degree of compensation of a deflection can be adjusted relatively well, since in each housing part 7 an individual or different, adapted to the requirements relative adjustment of the wedges 5 and 6 can be performed to each other, wherein advantageously the displacement of the lower wedge 6 is smooth because during this displacement, the upper wedge 5 is at least relieved or preferably raised.
  • both wedges can be relieved or lifted, after which the displaced position is brought about, in which then the wedges 5 and 6 are again frictionally and / or non-positively fixed in the position of use and can now compensate for corresponding bends.
  • FIGS. 12 and 13 is a modified compared to the embodiments described above embodiment is shown, in which the lifting device is disposed above the wedges or wedge pieces 5 and 6. It is provided that the upper wedge 5 for relieving or lifting of the lower wedge 6 is pulled up and then in the direction of arrows Pf2 displaced and adjustable. It is indicated that the upper wedge 5 positively connected to the cover 19 of the wedges or the housing 7 and this cover 19 is movable upward, wherein they in the FIGS. 12 and 13 already shown lifted relative to the housing 7.
  • the upper wedge 5 is slidably held on the liftable cover 19, that is, he can, for example, with a fitting 20 engage in a provided on the underside of the cover 19 T-shaped groove, so that it is connected to the cover 19 in lifting direction and yet is displaceable relative to her.
  • the lifting device has a support with respect to the lower wedge 6 and thereby also with respect to the housing 7, which can be acted on by a force for lifting the cover 19 and the upper wedge 5.
  • This support is designed as a piston 21 with piston rod 22, but could also be a spindle or other actuator to a corresponding application of force to raise the associated cover 19.
  • FIG. 12 can be seen within the cover 19, the piston 21 within a arranged in the cover 19 cylinder opening 23, so that upon pressure on the piston rod 22 side facing away from the piston 21, the cover 19 is moved together with the upper wedge 5 upwards.
  • the upper wedge 5 is in the embodiment according to the FIGS. 12 and 13 - In contrast to the above-described embodiments - shorter than the underlying wedge 6 and in the direction of the upper wedge 5 in turn a space 8 for the displacement of the upper wedge 5 is provided within the housing 7.
  • FIG. 13 is indicated that analogous to the arrangement according to FIG. 9 in or on the upper wedge 5, a working cylinder 17 may be provided to him relative to the other wedge 6 - in particular transverse to the bending line - to move, the shift in turn with the aid of a piston 18 analogous to the arrangement and the description of FIG. 9 he follows.
  • piston 18 and cylinder 17 could also be analog Fig. 11 be arranged on the outside of the housing 7.
  • the bending machine 1 in particular for crowning relatively movable wedges are more or less displaced relative to each other depending on the extent of the desired compensation or crowning, the upper wedge in the direction of displacement has larger size and is not adjusted in the rule, but only raised, while the lower, shorter in the direction of displacement wedge causes the desired compensation by its adjustment.
  • a force is exerted by the displacement, in particular by the upper wedge 5 is relieved or raised, so that the subsequent successful displacement of the lower wedge 6 can be smooth and with low driving force.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP08008324A 2007-07-17 2008-05-02 Procédé et plieuse destinés à la compensation de la déformation en flexion de pièces de cette plieuse Withdrawn EP2017020A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710033199 DE102007033199B3 (de) 2007-07-17 2007-07-17 Verfahren und Biegemaschine zur Kompensation der Durchbiegung von Teilen dieser Biegemaschine

Publications (2)

Publication Number Publication Date
EP2017020A2 true EP2017020A2 (fr) 2009-01-21
EP2017020A3 EP2017020A3 (fr) 2010-03-31

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Application Number Title Priority Date Filing Date
EP08008324A Withdrawn EP2017020A3 (fr) 2007-07-17 2008-05-02 Procédé et plieuse destinés à la compensation de la déformation en flexion de pièces de cette plieuse

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EP (1) EP2017020A3 (fr)
DE (1) DE102007033199B3 (fr)

Cited By (11)

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GB2468592A (en) * 2009-03-13 2010-09-15 Amada Europ A press brake for bending sheets
GB2468591A (en) * 2009-03-13 2010-09-15 Amada Europ A press brake for bending sheets
EP2722163A1 (fr) * 2012-10-18 2014-04-23 Nivora IP B.V. Unité d'entraînement pourvue de moyens d'entraînement intégrés
CN105057412A (zh) * 2015-08-24 2015-11-18 江苏中海重型机床有限公司 用于折弯机的等高可调节装置及折弯机
CN108067526A (zh) * 2015-05-29 2018-05-25 马鞍山市辰兴机械制造有限公司 折弯机挠度补偿工作台局部调节方法
CN109866450A (zh) * 2019-04-12 2019-06-11 扬州汉智数控机械有限公司 一种电伺服折弯中心楔块传动结构
CN111014474A (zh) * 2019-12-30 2020-04-17 江苏扬力数控机床有限公司 一种折弯机斜楔式挠度补偿的润滑装置
CN112045076A (zh) * 2020-08-20 2020-12-08 合肥工业大学 电液混合的冲压工艺分布式压边力产生装置及控制方法
WO2022146266A1 (fr) * 2020-12-31 2022-07-07 Baykal Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Structure de poutre supérieure à gaz propulseur dans des presses-plieuses
CN117000831A (zh) * 2023-08-11 2023-11-07 安徽联盟模具工业股份有限公司 一种折弯机工作台挠度补偿装置
CN117399470A (zh) * 2023-11-09 2024-01-16 王勇 一种挠度自适应补偿装置及包含其的折弯机

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CN101773960B (zh) * 2010-02-14 2011-06-08 安徽联盟模具工业股份有限公司 折弯机四片配合斜楔式挠度补偿装置
TR201203770A2 (tr) * 2012-04-03 2012-12-21 Durmazlar Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Yağlamalı bombeleme mekanizması.
CN103264098A (zh) * 2013-05-23 2013-08-28 江苏亚威机床股份有限公司 一种数控板料折弯机手调楔块补偿式工作台
CN103521574B (zh) * 2013-10-11 2016-06-22 安徽联盟模具工业股份有限公司 折弯机两片双斜面配合式双向挠度补偿装置

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DE1752346C3 (de) * 1968-05-11 1974-09-12 Scharringhausen Maschinenbau Gmbh, 7526 Rheinsheim Bombiervorrichtung für eine Abkantpresse
NL8901560A (nl) * 1989-06-21 1991-01-16 Wila Maschf Bv Kantpers en een automatische bombeerinrichting daarvoor.
JP3431049B2 (ja) * 1995-04-27 2003-07-28 株式会社小松製作所 曲げ加工機
JP4009018B2 (ja) * 1998-08-31 2007-11-14 株式会社東洋工機 プレスブレーキ

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2468592A (en) * 2009-03-13 2010-09-15 Amada Europ A press brake for bending sheets
GB2468591A (en) * 2009-03-13 2010-09-15 Amada Europ A press brake for bending sheets
GB2468591B (en) * 2009-03-13 2011-04-13 Amada Europ A press brake for bending sheets
GB2468592B (en) * 2009-03-13 2011-04-13 Amada Europ A press brake for bending sheets
EP2722163A1 (fr) * 2012-10-18 2014-04-23 Nivora IP B.V. Unité d'entraînement pourvue de moyens d'entraînement intégrés
CN108067526A (zh) * 2015-05-29 2018-05-25 马鞍山市辰兴机械制造有限公司 折弯机挠度补偿工作台局部调节方法
CN108067526B (zh) * 2015-05-29 2020-02-04 马鞍山市辰兴机械制造有限公司 折弯机挠度补偿工作台局部调节方法
CN105057412A (zh) * 2015-08-24 2015-11-18 江苏中海重型机床有限公司 用于折弯机的等高可调节装置及折弯机
CN109866450A (zh) * 2019-04-12 2019-06-11 扬州汉智数控机械有限公司 一种电伺服折弯中心楔块传动结构
CN111014474A (zh) * 2019-12-30 2020-04-17 江苏扬力数控机床有限公司 一种折弯机斜楔式挠度补偿的润滑装置
CN112045076A (zh) * 2020-08-20 2020-12-08 合肥工业大学 电液混合的冲压工艺分布式压边力产生装置及控制方法
CN112045076B (zh) * 2020-08-20 2023-07-25 合肥工业大学 电液混合的冲压工艺分布式压边力产生装置及控制方法
WO2022146266A1 (fr) * 2020-12-31 2022-07-07 Baykal Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Structure de poutre supérieure à gaz propulseur dans des presses-plieuses
CN117000831A (zh) * 2023-08-11 2023-11-07 安徽联盟模具工业股份有限公司 一种折弯机工作台挠度补偿装置
CN117399470A (zh) * 2023-11-09 2024-01-16 王勇 一种挠度自适应补偿装置及包含其的折弯机

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