EP0249775A2 - Procédé de commande d'un appui de levage pour une presse plieuse - Google Patents

Procédé de commande d'un appui de levage pour une presse plieuse Download PDF

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Publication number
EP0249775A2
EP0249775A2 EP87107574A EP87107574A EP0249775A2 EP 0249775 A2 EP0249775 A2 EP 0249775A2 EP 87107574 A EP87107574 A EP 87107574A EP 87107574 A EP87107574 A EP 87107574A EP 0249775 A2 EP0249775 A2 EP 0249775A2
Authority
EP
European Patent Office
Prior art keywords
movement
lifting
support
die
sheet metal
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Withdrawn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
EP87107574A
Other languages
German (de)
English (en)
Other versions
EP0249775A3 (fr
Inventor
Eduard Hänni
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.)
Haemmerle AG Maschinenfabrik
Original Assignee
Haemmerle AG Maschinenfabrik
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 Haemmerle AG Maschinenfabrik filed Critical Haemmerle AG Maschinenfabrik
Publication of EP0249775A2 publication Critical patent/EP0249775A2/fr
Publication of EP0249775A3 publication Critical patent/EP0249775A3/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Withdrawn legal-status Critical Current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
    • B21D5/0281—Workpiece supporting devices

Definitions

  • the present invention relates to a method for controlling a lifting support on sheet metal presses, which lifting support serves for movably supporting the sheet metal part resting on a die of the press, which carries out a pivoting movement around the bending edge lying in the middle of the die opening during the pressing process.
  • the lifting support is equipped with at least one support unit which is pivotably arranged on a vertically movable lifting member.
  • the invention further relates to a lifting support for practicing the proposed method.
  • the purpose of the present invention is to propose a method and a corresponding sheet metal support, which a Allow precise support of the sheet metal piece during the bending process, so that the sheet metal pieces are kept free of tension and do not suffer any deformation.
  • the basic idea of the present method is to find ways and means of coordinating the vertically upward support movement of the lifting support with the movement of the press ram. This coordination then has the effect that the movement of the sheet metal support takes place quickly or slowly, both with fast and with slow lifting movements, so that the sheet metal piece is always kept stress-free in accordance with the respective requirements.
  • a method of the type defined in the introduction in which the lifting movement of the lifting element directed in the opposite direction to the ram movement of the press is carried out at a speed which is in a ratio to the ram movement which is related to the ratio of the distance between the support and that of the support Edge of the die corresponds to half the die width. If these requirements are met, the ram movement is coordinated exactly with the movement of the press ram.
  • the movement of the ram is measured and entered into a computer in which the width of the opening of the respective die and the distance of the movable lifting member from the die is stored, whereupon the respective speed of the movement of the lifting member is due to the mentioned relationship is calculated and the calculated values are entered for controlling a drive device for moving the lifting member.
  • the movement of the Ram is not uniform, but usually decreases during the bending process, but according to the proposal, the motion of the ram is continuously recorded and entered into a computer.
  • the values which are decisive for determining the speed of the lifting element are already stored in this computer. These values are related to the measured values of the ram movement and the respective lifting speed is calculated.
  • the drive device of the lifting element is continuously controlled.
  • the lifting support suitable for carrying out the proposed method for supporting the sheet metal part, which rests on a die during the bending process and pivots around the bending edge located in the middle of the die opening is provided with at least one support unit pivotably arranged on a vertically movable lifting member.
  • the lifting support is characterized in that a drive control is provided for controlling the movement of the lifting member, which is connected to a computer which is fed by a measuring device which detects the movement of the ram.
  • a partially and schematically drawn press body is designated by l, which belongs to a sheet metal press for processing sheet metal plates and is provided with a ram 2.
  • 3 denotes a die with an opening 4, which die is interchangeably arranged on the press table 5 and press frame 6.
  • 7 with a lifting member is designated, which has a lifting support 9 guided in a cylindrical housing 8, at the end remote from the cylindrical housing 8 a support unit 10 is pivotally arranged.
  • a drive device l2 which has a drive motor l3 with gear wheel l4, which meshes with a rack l5, which runs vertically parallel to the lifting support 9 and is guided in a frame l6, which forms part of the press frame 6 and the cylindrical housing 8 wearing.
  • the rack l5 is connected to the lifting support 9 with the aid of a holder l7, so that the vertical movement of the rack l5 results in a corresponding movement of the lifting support 9 together with the support unit l0.
  • a measuring device l8 is provided on the press body 1, which continuously records and registers the speed of the ram 2, a computer l9 being fed with the corresponding values and being connected to the measuring device l8.
  • a drive control 20 is in turn connected to the computer l9 and on the other hand influences the drive motor l3.
  • the width of the die opening 4 has been designated by v.
  • the longitudinal center plane E through the die opening is the plane in which the ram 2 moves in order to edge a piece of sheet metal 2l.
  • the distance between the center line of the lifting support 9 and the edge 22 of the die opening 4 facing it is denoted by b.
  • the piece of sheet metal 2l lies flat on the die 3, as is shown in broken lines in FIG.
  • the ram 2 is moved downward at a certain speed, while the sheet metal parts resting on the die perform a pivoting movement about the bending edges 23 lying in the middle of the die opening.
  • the purpose of the device is that during this swiveling movement the support unit 10 executes an upward coordinated movement and to reach the position shown in FIG.
  • the downward plunger movement of the press l is directed in opposite direction to the lifting movement of the lifting support 9 at a speed which is related to the plunger movement in such a ratio as to the ratio of the distance b between the support 9 and that of the support 9 edge 22 of the die returned to half the die width corresponds.
  • FIG. 2 A variant of the lifting element 7 is shown in FIG. 2.
  • a vertical shader 24 is attached to the press table 5, which carries at its end facing away from the press table 5 a support unit 10a corresponding to the support unit 10, which is fastened at one end to the holder 24 so as to be pivotable about an axis 25.
  • the lifting support 9 corresponds to a lifting support 9a, which carries at its free end a roller 26 against which the support unit 10a rests.
  • the movement of the lifting support 9a brings it into the upper position shown in broken lines, the support unit 10a assuming the position also shown in broken lines.
  • the control of the loading movement of the lifting support 9a takes place in exactly the same way as in the embodiment according to FIG. In this embodiment, too, the movement of the plunger 2 is closely monitored and the pivoting of the sheet metal piece is precisely supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP87107574A 1986-06-16 1987-05-25 Procédé de commande d'un appui de levage pour une presse plieuse Withdrawn EP0249775A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1624/86 1986-06-16
AT0162486A AT384759B (de) 1986-06-16 1986-06-16 Verfahren zum steuern einer hebestuetze an blechpressen

Publications (2)

Publication Number Publication Date
EP0249775A2 true EP0249775A2 (fr) 1987-12-23
EP0249775A3 EP0249775A3 (fr) 1989-07-26

Family

ID=3517441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107574A Withdrawn EP0249775A3 (fr) 1986-06-16 1987-05-25 Procédé de commande d'un appui de levage pour une presse plieuse

Country Status (3)

Country Link
US (1) US4753100A (fr)
EP (1) EP0249775A3 (fr)
AT (1) AT384759B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729808A1 (de) * 1986-09-05 1988-05-05 Oki Electric Ind Co Ltd Werkstueck-folgevorrichtung und werkstueck-folgeverfahren
CN101972817A (zh) * 2010-06-13 2011-02-16 太仓市托达精密模具有限公司 一种托料架
CN101972805A (zh) * 2010-06-13 2011-02-16 太仓市托达精密模具有限公司 一种托料装置
CN103100605A (zh) * 2013-02-25 2013-05-15 宁波市令通电信设备有限公司 折弯机板料托架
CN103100606A (zh) * 2013-02-25 2013-05-15 宁波市令通电信设备有限公司 托板机构
CN103100600A (zh) * 2013-02-25 2013-05-15 宁波市令通电信设备有限公司 一种折弯机板料托架
CN103878264A (zh) * 2014-02-25 2014-06-25 安徽鑫锐电气集团有限公司 一种折弯机用板料托送装置
IT201600083221A1 (it) * 2016-08-05 2018-02-05 Triveneta Impianti S R L Attrezzatura per la lavorazione meccanica di elementi lastriformi
CN109513775A (zh) * 2018-10-09 2019-03-26 刘书明 一种镀锌扁钢机械式炜弯设备

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669131A5 (fr) * 1986-10-14 1989-02-28 Cybelec Sa Dispositif de securite d'une machine-outil.
WO1990003857A1 (fr) * 1988-10-07 1990-04-19 Aliko Oy Alitalon Konepaja Dispositif de support pour presse plieuse
DE59104977D1 (de) * 1990-05-10 1995-04-27 Wegener Gmbh Verfahren zum Biegen von plattenförmigen Werkstücken sowie Biegemaschine zur Durchführung des Verfahrens.
BE1007424A5 (nl) * 1993-08-27 1995-06-13 Lvd Co Adaptief plooien.
WO2001003864A1 (fr) * 1999-07-13 2001-01-18 Amada Company, Limited Systeme de cintrage de tole comprenant une presse plieuse et un dispositif de support de tole, procede de creation de donnees de commande afferent et support de stockage lisible par ordinateur sur lequel sont memorisees les donnees de commande
US6301949B1 (en) * 2000-03-24 2001-10-16 The Boeing Company Press for forming workpieces
FR2819436B1 (fr) * 2001-01-17 2003-04-18 Amada Europ Sa Accompagnateur de toles pour presse plieuse
JP6101454B2 (ja) * 2012-09-04 2017-03-22 株式会社アマダホールディングス ワーク加工装置及び該ワーク加工装置における金型の移動方法
CN103100602B (zh) * 2013-02-25 2015-01-21 宁波市令通电信设备有限公司 用于折弯机的托板机构
CN103100604B (zh) * 2013-02-25 2015-01-21 宁波市令通电信设备有限公司 折弯机托板支架
CN103878260B (zh) * 2014-02-26 2015-11-18 安徽鑫锐电气集团有限公司 一种折弯机用送料架
AT515296B1 (de) * 2014-03-19 2015-08-15 Trumpf Maschinen Austria Gmbh Biegehilfe für eine Abkantpresse
CN106938302A (zh) * 2017-04-28 2017-07-11 安徽江淮汽车集团股份有限公司 托料模具
CN114472647B (zh) * 2021-12-31 2024-05-24 安徽和信华成科技服务有限公司 一种钢板的多工序折弯装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884616A (ja) * 1981-11-16 1983-05-20 Amada Co Ltd ワ−ク支持装置
JPS59147716A (ja) * 1983-02-15 1984-08-24 Mitsubishi Electric Corp プレスブレ−キの材料支持装置
JPS6064730A (ja) * 1983-09-06 1985-04-13 Amada Metoretsukusu:Kk プレスブレーキ
JPS60162527A (ja) * 1984-01-26 1985-08-24 Mitsubishi Electric Corp プレスブレ−キ用材料支持装置の制御方法

Family Cites Families (7)

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DE2343674A1 (de) * 1973-08-30 1975-03-13 Temafa Textilmaschf Meissner Blechabkantpresse
DE2715815A1 (de) * 1977-04-07 1978-10-19 Promecam Maschinen Gmbh Einrichtung zur einstellung des biegewinkels fuer den automatischen betrieb von abkantpressen
DE2901376B2 (de) * 1979-01-15 1980-10-30 Karl Mengele & Soehne Maschinenfabrik Und Eisengiesserei Gmbh & Co, 8870 Guenzburg Steuereinrichtung an Freibiegemaschinen
US4341104A (en) * 1979-11-19 1982-07-27 Jarman David J Press brake plate lifter table
SE463701B (sv) * 1980-12-09 1991-01-14 Amada Co Ltd Saett att utfoera en v-formad bockning i en press och anordning foer justering av ett stoedelement i en press
US4594870A (en) * 1982-11-25 1986-06-17 Shin-Meiwa Industry Co., Ltd. Automatic bending apparatus
JPS59113932A (ja) * 1982-12-20 1984-06-30 Mitsubishi Electric Corp プレスブレ−キの材料支持装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884616A (ja) * 1981-11-16 1983-05-20 Amada Co Ltd ワ−ク支持装置
JPS59147716A (ja) * 1983-02-15 1984-08-24 Mitsubishi Electric Corp プレスブレ−キの材料支持装置
JPS6064730A (ja) * 1983-09-06 1985-04-13 Amada Metoretsukusu:Kk プレスブレーキ
JPS60162527A (ja) * 1984-01-26 1985-08-24 Mitsubishi Electric Corp プレスブレ−キ用材料支持装置の制御方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 183 (M-235)[1328], 12. August 1983; & JP-A-58 84 616 (AMADA K.K.) 20-05-1983 *
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 276 (M-346)[1713], 18. Dezember 1984; & JP-A-59 147 716 (MITSUBISHI DENKI K.K.) 24-08-1984 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 202 (M-405)[1925], 20. August 1985; & JP-A-60 64 730 (AMADA METORETSUKUSU K.K.) 13-04-1985 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 330 (M-442)[2053], 25. Dezember 1985; & JP-A-60 162 527 (MITSUBISHI DENKI K.K.) 24-08-1985 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729808A1 (de) * 1986-09-05 1988-05-05 Oki Electric Ind Co Ltd Werkstueck-folgevorrichtung und werkstueck-folgeverfahren
DE3729808C2 (de) * 1986-09-05 1995-06-14 Oki Electric Ind Co Ltd Nachfolge-Vorrichtung für eine Blechtafel auf einer Abkantpresse
CN101972817A (zh) * 2010-06-13 2011-02-16 太仓市托达精密模具有限公司 一种托料架
CN101972805A (zh) * 2010-06-13 2011-02-16 太仓市托达精密模具有限公司 一种托料装置
CN103100605A (zh) * 2013-02-25 2013-05-15 宁波市令通电信设备有限公司 折弯机板料托架
CN103100606A (zh) * 2013-02-25 2013-05-15 宁波市令通电信设备有限公司 托板机构
CN103100600A (zh) * 2013-02-25 2013-05-15 宁波市令通电信设备有限公司 一种折弯机板料托架
CN103878264A (zh) * 2014-02-25 2014-06-25 安徽鑫锐电气集团有限公司 一种折弯机用板料托送装置
IT201600083221A1 (it) * 2016-08-05 2018-02-05 Triveneta Impianti S R L Attrezzatura per la lavorazione meccanica di elementi lastriformi
EP3278892A1 (fr) * 2016-08-05 2018-02-07 Triveneta Impianti S.r.l. Équipement de formage mécanique de pièces en tôle
CN109513775A (zh) * 2018-10-09 2019-03-26 刘书明 一种镀锌扁钢机械式炜弯设备
CN109513775B (zh) * 2018-10-09 2020-06-05 南京六六创业科技有限公司 一种镀锌扁钢机械式煨弯设备

Also Published As

Publication number Publication date
AT384759B (de) 1988-01-11
ATA162486A (de) 1987-06-15
US4753100A (en) 1988-06-28
EP0249775A3 (fr) 1989-07-26

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