EP2077165A1 - Plieuse de tôle - Google Patents

Plieuse de tôle Download PDF

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Publication number
EP2077165A1
EP2077165A1 EP08022322A EP08022322A EP2077165A1 EP 2077165 A1 EP2077165 A1 EP 2077165A1 EP 08022322 A EP08022322 A EP 08022322A EP 08022322 A EP08022322 A EP 08022322A EP 2077165 A1 EP2077165 A1 EP 2077165A1
Authority
EP
European Patent Office
Prior art keywords
sheet
bending machine
row
machine according
dies
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.)
Granted
Application number
EP08022322A
Other languages
German (de)
English (en)
Other versions
EP2077165B1 (fr
Inventor
Dr.-Ing. Jochem Beissel
Dr.-Ing. Thilo Reichel
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.)
EISENBAU KRAEMER MBH
Eisenbau Kramer Mbh
Original Assignee
EISENBAU KRAEMER MBH
Eisenbau Kramer Mbh
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 EISENBAU KRAEMER MBH, Eisenbau Kramer Mbh filed Critical EISENBAU KRAEMER MBH
Priority to SI200830034T priority Critical patent/SI2077165T1/sl
Priority to PL08022322T priority patent/PL2077165T3/pl
Publication of EP2077165A1 publication Critical patent/EP2077165A1/fr
Application granted granted Critical
Publication of EP2077165B1 publication Critical patent/EP2077165B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes

Definitions

  • the invention relates to a sheet metal bending machine, in particular for the production of pipes, with a bending device comprising a system of dies with in several arranged by a sheet supplied at different distances rows of press shoes, wherein the distances of the press shoes from the respective sheet surface accordingly the contour of the sheet to be bent selected and predetermined or predetermined by a plurality of actuators and wherein a plurality of hydraulically or pneumatically driven forming dies are arranged on the side opposite the mold dies of the sheet to bend the sheet in the set of the mold punches contour.
  • a sheet metal bending machine of this kind is in the DE 24 02 190 A1 specified.
  • a plurality of rows of stamps directed towards the lower or upper surface of the sheet are arranged over the upper side and the underside of a sheet metal plate supplied via a carrying device, which rows are adjustable at different distances from the sheet metal surface.
  • the stamps on the top and bottom of the sheet are each arranged in at least three rows, each row on the top opposite a row on the bottom and the distances between the rows are adjustable.
  • the punches are adjustable by means of a screw spindle system on the top and bottom or with a screw system on the one hand and a hydraulic system on the other side, by means of the screw system a certain curvature of the sheet is preset, then the sheet metal plate with the on the other side arranged stamps to press against the preset punch and give it the desired curvature.
  • thick sheets are to be bent in this way only with considerable effort.
  • Another plate bending machine for pipes is in the EP 0 051 554 A2 shown.
  • upper, along the length of the tube extending moldings are provided with the pipe contour corresponding semi-cylindrical recesses, which are moved by means of relatively complex, cylinder having adjusting mechanisms for a pressing operation.
  • a similar hydraulic sheet bending press like the EP 0 051 554 A2 also shows the DE 24 55 521 A1 ,
  • the sheet which can have a considerable thickness of several centimeters or even in the range of a decimeter in pipes of large diameter, usually pressed between two fittings.
  • the necessary molds for different dimensions must be exchanged.
  • Such retooling measures restrict the availability of the facilities.
  • the invention has for its object to provide a sheet metal bending machine, in particular for the production of pipes, which results in improved operation with reliable operation.
  • the actuators are designed as actuating cylinders and that the forming dies are arranged in only one row in the region of an end portion of the sheet adjacent to the sheet edge.
  • the desired contour can be precisely adjusted by means of the adjusting cylinders and the press shoes connected thereto.
  • the bending operation with a stable structure and simple, accurate control are performed reliably.
  • the plurality of rows of mold punches are preferably arranged above the upper side of the sheet, while one row of the mold punches is advantageously arranged on the underside.
  • a reverse arrangement of the die punches on the bottom and the bending process exporting punch on the top is conceivable.
  • a large bending area is achieved around all rows of mold punches with only a series of dies in just one bending operation.
  • pipes of large diameter for example greater than 300 mm or 500 mm
  • thick-walled metal sheets of, for example, greater than 30 mm or 50 mm.
  • An advantageous embodiment consists in the fact that the row of the forming dies is at most as far away from the sheet metal edge in question as the row of opposite die dies lying closest thereto.
  • the bending processing is facilitated by the fact that a clamping device for the metal plate is present, which is arranged parallel to the remote from the sheet edge row of mold punches on their side facing away from the sheet edge side. These measures can support the accuracy of the bending process.
  • the clamping device for supporting the metal plate has a lower fixed or height-adjustable support and one of these on the top opposite clamping arrangement for clamping the metal plate against the support.
  • the measures contribute that the clamping arrangement is connected to open and close to a hydraulically operating actuator.
  • a stable construction and a reliable function are further supported by the fact that the hydraulic drives of the forming dies, in particular designed as further setting cylinders, are dimensioned to generate higher forces than the setting cylinders of the forming dies.
  • the mold punches are provided with press shoes.
  • wear can be easily eliminated or easily adapted to different curvatures.
  • curvatures can be predefined in a simple manner, for example by programming via a computer contained in the control device, that there is a control device for setting the actuating cylinder, with which the rows of press shoes in the direction of the rows at the same distance from the sheet surface and row to row to the sheet edge with increasing distance along a straight line or in a convex, in particular circular segment-shaped, curvature can be positioned.
  • the control device By means of the control device, the bending process can also be suitably controlled via the forming punches with the associated hydraulic or pneumatic drive device, for example also with adjusting cylinders matched to the curvature course and / or the material (thickness, composition).
  • the bending processing operations are facilitated by the fact that the clamping arrangement with its actuator and / or optionally in addition existing supply device for the metal plate connected to the control device and tuned by means of these mutually and / or the bending process is / are.
  • the measures are advantageous for the construction of the plate bending machine in that the number of forming dies per row is less than the number of die punches per row. In this way, the structure can be simplified and adapted to different requirements.
  • the Fig. Shows a arranged in a sheet metal bending plate B, over the top of several rows of mold punches 1 and below the bottom of a series of dies 3 are arranged.
  • the metal plate B which is supplied via a support 14, is fixed stably in a clamping device 10 with a support 11 on the underside and a clamping arrangement 12 on the upper side, wherein the clamping arrangement 12 by means of a preferably hydraulic or pneumatic actuator 13 against the top of Sheet metal B is pressed against the support 11.
  • the top of the metal plate B facing end portions of the die 1 are provided with press shoes 1.1, the ends of which are tapered conical or convex rounded to the outside, so that they favor the bending operation according to the set curvature.
  • a further press shoe 4 which directed to the lower surface of the metal plate B towards end face is also tapered or convex rounded to the outside, so that at the beginning of the bending work the flat Sheet metal B only punctiform or line-like rests on the press shoe 4 and during the bending process, a change in inclination of the lower sheet surface relative to the end face of the press shoe 4 can proceed unhindered, whereby the bending process is additionally favored.
  • the forming dies 1 and the forming dies 3 are preferably actuated by means of hydraulically driven actuators, in particular actuating cylinders 2 and 6, for adjustment to the predetermined curvature on the one hand and for the bending operation on the other hand, wherein the control or regulation of the actuation by means of a control device 5.
  • a hydraulic drive in particular for the forming dies 3, a pneumatic drive can be provided.
  • press shoes 1.1 and / or further press shoes 4 are exchangeably attached to the end sections of the forming dies 1 or the forming dies 3 in one embodiment, press shoes 1.1, 4 with differently shaped end faces can easily be exchanged for one another, or they can be easily replaced when worn , Also, an adaptation to different materials to be bent metal plates B is made possible by the exchange of press shoes 1.1 and 4 respectively.
  • tuning the material combination press shoes / sheet metal plate it is advantageous to choose the coefficient of friction so that a slip resistance is achieved or a good lubricity depending on the bending contour or sheet material, plate thickness or the like.
  • the row of forming dies 3 is arranged for the bending operation with the associated drive means on top of the sheet metal plate B, while the rows of mold punches 1 are arranged for setting the curvature under the underside of the sheet metal plate B.
  • the control device 5 By means of the control device 5, the setting of the die 1 on the predetermined curvature and the control of the forming dies 3 for the bending process in coordination with each other, including the control of a a programming has suitable computer unit.
  • the sheet metal bending machine has a measuring system with a measuring sensor which picks up the contour of the sheet during bending and its data are fed to the control device and processed therein to adjust the bending data.
  • the control device 5 advantageously comprises a memory device, are stored in the default values for the processing of certain types of products and are easily retrievable for the operator.
  • the clamping device 10 may also be coupled to the control device 5 in order to release the clamping arrangement 12 during the feeding or removal of the metal sheet B and to clamp it during the bending process.
  • a supply device 20 for the metal plate B is also connected to the control device 5 and controlled by it.
  • the clamping device 10 results in an unambiguous definition of the metal plate B, so that the bending over the rows of provided with the press shoes 1.1 mold punch 1 can be performed with stable alignment and high accuracy.
  • the support 11 with its front side provides a clear reference position for the setting of the die 1 and the above predetermined curvature of the metal plate B, wherein the respective thickness of the metal plate B in the control device 5 is taken into account.
  • the desired shape of the sheet such as a cylindrical tube shape
  • the desired shape of the sheet can be easily and accurately achieved by means of the control or regulation setting of the hydraulic or pneumatic actuating cylinder by means of a segment bending processing and end position of the rows of mold dies 1, with different settings easy and exactly possible.
  • the rows of mold punches 1 are with their end faces are set at the same height or the same distance from the respective surface of the metal sheet B, while the distance increases from row to row to the edge of the processed sheet metal section increasingly along a straight line or convexly outwardly curved curve.
  • the individual rows of the forming dies 1 with their end faces or press shoes 1.1 come into contact with the sheet metal edge in succession with the relevant surface of the sheet, with the lever arm between the relevant row of the forming dies 1 and the row the forming punch 3 increasingly shortened and thus increase the applied bending forces.
  • the forming dies 3 are designed for higher forces than the mold punches 1, since they are also stressed more dynamically.
  • a press shoe 4 can be assigned a plurality of forming dies 3 with hydraulic or pneumatic drives, so that the number of further press shoes 4 in this case is less than the number of forming dies 3.
  • the total number of forming dies 3 in a row can be less than the number of mold dies 1 in a row, whereby the dynamic control of the forming dies 3 favors and wear parts are reduced.
  • the row of forming dies 3 is at most as far away from the sheet edge as the row of forming dies 1 lying closest thereto.
  • control device 5 By means of the control device 5, the control or regulation when bending to the properties of different materials of the tool of the metal plate B can be suitably adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP08022322A 2008-01-03 2008-12-23 Plieuse de tôle Not-in-force EP2077165B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200830034T SI2077165T1 (sl) 2008-01-03 2008-12-23 Stroj za upogibanje pločevine
PL08022322T PL2077165T3 (pl) 2008-01-03 2008-12-23 Giętarka do blachy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008000121U DE202008000121U1 (de) 2008-01-03 2008-01-03 Blechbiegemaschine

Publications (2)

Publication Number Publication Date
EP2077165A1 true EP2077165A1 (fr) 2009-07-08
EP2077165B1 EP2077165B1 (fr) 2010-02-17

Family

ID=39311650

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08022322A Not-in-force EP2077165B1 (fr) 2008-01-03 2008-12-23 Plieuse de tôle
EP08022540.2A Not-in-force EP2077166B1 (fr) 2008-01-03 2008-12-31 Dispositif de traitement de bord longitudinal pour tôles

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08022540.2A Not-in-force EP2077166B1 (fr) 2008-01-03 2008-12-31 Dispositif de traitement de bord longitudinal pour tôles

Country Status (9)

Country Link
EP (2) EP2077165B1 (fr)
AT (1) ATE457838T1 (fr)
DE (2) DE202008000121U1 (fr)
DK (1) DK2077165T3 (fr)
ES (2) ES2341503T3 (fr)
PL (2) PL2077165T3 (fr)
PT (1) PT2077165E (fr)
RS (1) RS51337B (fr)
SI (1) SI2077165T1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112404164A (zh) * 2020-11-10 2021-02-26 上海宝冶集团有限公司 方管压制成形的工艺方法
CN116099952A (zh) * 2023-01-10 2023-05-12 连云港市东堡旋耕机械有限公司 农业旋耕机多工位同时进行的金属加工冲压设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7506531B1 (en) * 2007-12-20 2009-03-24 Gm Global Technology Operations, Inc. Dimple-forming tool for projection welding
WO2010118759A2 (fr) * 2009-04-16 2010-10-21 Gmbh Siegen Bergrohr Presse à cintrer pour feuilles de tôle
DE102011053676B4 (de) 2011-09-16 2016-09-08 EISENBAU KRäMER GMBH Rohrbiegemaschine
DE102016225986A1 (de) 2016-12-22 2018-06-28 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zum Formen eines Bleches

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402190A1 (de) 1974-01-17 1975-07-24 Mitsubishi Heavy Ind Ltd Verfahren und vorrichtung zum biegen von stahlblechen bzw. -platten
DE2455521A1 (de) 1974-11-23 1976-05-26 Siempelkamp Gmbh & Co Hydraulische blechbiegepresse
DE2741001A1 (de) 1976-09-15 1978-03-23 Boeing Co Dreipunkt-blechfreibiegemaschine
US4148426A (en) 1976-09-10 1979-04-10 Nippon Steel Corporation Method and apparatus for manufacturing metal pipe
EP0051554A2 (fr) 1980-11-03 1982-05-12 Kaiser Steel Corporation Presse à tuyaux
DE4215807A1 (de) 1992-05-15 1993-11-18 Mannesmann Ag Rohrbiegepresse in geschlossener Rahmenbauart
DE4410105A1 (de) * 1994-03-21 1995-09-28 Mannesmann Ag Rohrbiegepresse zur Herstellung von Schlitzrohren aus Blechtafeln
EP1382402A2 (fr) * 2002-07-15 2004-01-21 SMS Meer GmbH Dispositif pour la fabrication de tubes à partir de tôles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365515B2 (de) 1973-02-14 1977-08-25 Anbiegevorrichtung fuer bleche
US4430872A (en) 1980-02-14 1984-02-14 Nippon Kokan Kabushiki Kaisha Method and apparatus for plate edge preparation for UOE pipe making process
US4353235A (en) 1980-06-17 1982-10-12 Kaiser Steel Corporation Edge preforming of metal plate
SE443733B (sv) 1982-11-12 1986-03-10 Asea Ab Sett och verktyg for kantbockning av tjockplat
DE19621658C2 (de) 1996-05-30 1999-11-04 Eht Werkzeugmaschinen Gmbh Bearbeitungsmaschine für plattenförmige Werkstücke, insbesondere zur Erzeugung von gebogenen Rändern an Blechteilen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402190A1 (de) 1974-01-17 1975-07-24 Mitsubishi Heavy Ind Ltd Verfahren und vorrichtung zum biegen von stahlblechen bzw. -platten
DE2455521A1 (de) 1974-11-23 1976-05-26 Siempelkamp Gmbh & Co Hydraulische blechbiegepresse
US4148426A (en) 1976-09-10 1979-04-10 Nippon Steel Corporation Method and apparatus for manufacturing metal pipe
DE2741001A1 (de) 1976-09-15 1978-03-23 Boeing Co Dreipunkt-blechfreibiegemaschine
EP0051554A2 (fr) 1980-11-03 1982-05-12 Kaiser Steel Corporation Presse à tuyaux
DE4215807A1 (de) 1992-05-15 1993-11-18 Mannesmann Ag Rohrbiegepresse in geschlossener Rahmenbauart
DE4410105A1 (de) * 1994-03-21 1995-09-28 Mannesmann Ag Rohrbiegepresse zur Herstellung von Schlitzrohren aus Blechtafeln
EP1382402A2 (fr) * 2002-07-15 2004-01-21 SMS Meer GmbH Dispositif pour la fabrication de tubes à partir de tôles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112404164A (zh) * 2020-11-10 2021-02-26 上海宝冶集团有限公司 方管压制成形的工艺方法
CN116099952A (zh) * 2023-01-10 2023-05-12 连云港市东堡旋耕机械有限公司 农业旋耕机多工位同时进行的金属加工冲压设备
CN116099952B (zh) * 2023-01-10 2024-03-29 连云港市东堡旋耕机械有限公司 农业旋耕机多工位同时进行的金属加工冲压设备

Also Published As

Publication number Publication date
EP2077166A1 (fr) 2009-07-08
DK2077165T3 (da) 2010-06-07
EP2077165B1 (fr) 2010-02-17
DE502008000379D1 (de) 2010-04-01
ES2341503T3 (es) 2010-06-21
ES2447495T3 (es) 2014-03-12
DE202008000121U1 (de) 2008-04-17
ATE457838T1 (de) 2010-03-15
PT2077165E (pt) 2010-05-17
RS51337B (sr) 2011-02-28
EP2077166B1 (fr) 2013-11-20
SI2077165T1 (sl) 2010-07-30
PL2077165T3 (pl) 2010-07-30
PL2077166T3 (pl) 2014-05-30

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