WO2020142028A1 - Machine à cintrer - Google Patents

Machine à cintrer Download PDF

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Publication number
WO2020142028A1
WO2020142028A1 PCT/TR2019/050849 TR2019050849W WO2020142028A1 WO 2020142028 A1 WO2020142028 A1 WO 2020142028A1 TR 2019050849 W TR2019050849 W TR 2019050849W WO 2020142028 A1 WO2020142028 A1 WO 2020142028A1
Authority
WO
WIPO (PCT)
Prior art keywords
wedge
guide
press
bending machine
bending
Prior art date
Application number
PCT/TR2019/050849
Other languages
English (en)
Inventor
Fatih AYDEMIR
Ali ULU
Original Assignee
Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi
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 Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi filed Critical Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi
Priority to EP19907955.9A priority Critical patent/EP3906125A4/fr
Publication of WO2020142028A1 publication Critical patent/WO2020142028A1/fr

Links

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
    • B21D5/04—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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • 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
    • B21D5/047—Length adjustment of the clamping means

Definitions

  • the present invention relates to at least one bending machine press group having at least one press element for bending a work piece and at least one guide whereon said press element is positioned.
  • CNC bending machines having a wide usage area in metal industry, are structures having a bending tool and press tools associated with the bending tool for providing bending to metal sheets. Press tools provide the sheet metal to be kept fixed during providing bending to the sheet by means of bending blades.
  • lateral press tools In panel bending machines, lateral press tools shall stay fixed during the bending processes. In the opposite case, bending is realized in an erroneous manner or the press tool may be damaged. Lateral press tools have a fragmental structure and can be positioned at different combinations depending on the bending size and bending type. While molds are not in locked form, the molds, moved by means of the tool change system known in the patent with number 2017/22072 in the art, are fixed by means of lateral press tool locking mechanism before beginning of the bending. In order to be able to realize the bending process in air in a firm manner in panel bending machines, the bent sheet material is compressed and fixed by the lateral press tools. During this compression process, the lateral press tools are locked by the mechanism.
  • fixation of the press tools in the bending machine is realized manually by the operator. In this case, fixation faults occur depending on the operator, production failures and time losses and labor losses occur.
  • the present invention relates to a bending machine press group, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide a bending machine press group where the press elements are fixed and removed automatically.
  • the present invention is a bending machine press group having at least one press element for bending a work piece and at least one guide whereon said press element is positioned.
  • the subject matter bending machine press group comprises at least one first wedge which extends in the direction of the axis of said guide and which has a form narrowing at a predetermined angle, at least one second wedge provided essentially in the vicinity of said first wedge and which has a form widening at an angle which is essentially equal to the narrowing angle of the first wedge, and at least one drive unit which is connected to and which moves said second wedge essentially in the direction of the axis of the guide.
  • At least one recess is positioned in order to provide bending of the first wedge during the contact of the first wedge to the press element.
  • kinetic energy is transformed into potential energy, and damage is prevented.
  • At least one ball bearing is positioned between said second wedge and said first wedge.
  • the second wedge can move on the first wedge without difficulty.
  • At least one needle bearing is positioned between said second wedge and said guide.
  • the second wedge can move on the guide without difficulty.
  • At least one housing is positioned on the guide.
  • multiple assemblies of the press elements on the guide can be provided.
  • at least one protrusion is positioned on said press element in order to be engaged to said housing.
  • the press elements can be held while the press elements are on the guide in a free form.
  • Figure 1 is a representative perspective view of the ram of the subject matter bending machine press group.
  • Figure 2 is a representative perspective view of the guide and the press elements of the subject matter bending machine press group.
  • Figure 3 is a representative assembled frontal view of the guide and the press elements in the subject matter bending machine press group.
  • Figure 4 is a representative top view of the first wedge and the second wedge in the subject matter bending machine press group.
  • Figure 5 is a representative frontal view of the drive unit in the subject matter bending machine press group.
  • At least one press element (4) is positioned on said guide (3).
  • Figure 2 a representative perspective view of the guide (3) positioned on said press elements (4) is given. Accordingly, the guide (3) is positioned on the ram (2) by means of at least one V bearing.
  • the positioning of the press elements (4) on the guide (3) is provided by means of engagement of at least one each protrusions (41 ), provided on the side where the press element (4) is joined with the guide (3), and at least one each housings (36) positioned mutually on the side where the guide (3) faces the press element (4).
  • FIG 3 a representative assembled frontal view of the guide (3) and the press element (4) is given. Accordingly, while the press element (4) is positioned on the guide (3), the housing (36) and the protrusion (41 ) engage to each other from one side and the protrusion (41 ) engages to at least one first wedge (31 ) from the other side. Said first wedge (31 ) functions as housing (36) on the outer side thereof thanks to its shape. In order to provide fixation of the press element (4) after the press element (4) is engaged to the guide (3), at least one first wedge (31 ) is positioned on the guide (3) and at least one second wedge (33) is positioned essentially in the vicinity of said first wedge (31 ). One of the housings (36) on the guide (3) is essentially in the vicinity of the first wedge (31 ).
  • FIG 4 a representative top view of the first wedge (31 ) and the second wedge (33) is given.
  • the first wedge (31 ) has a form which narrows along the guide (3) and it is fixed on the guide (3).
  • the second wedge (33) has a form which equivalently widens as the narrowing form of the first wedge (31 ) and the second wedge (33) extends in a parallel manner to the axis of the guide (3) in the vicinity of the first wedge (31 ).
  • the second wedge (33) can move linearly in the axis of the guide (3) by means of at least one drive unit (5). As the wide side of the second wedge (33) approaches the wide side of the first wedge (31 ), the press element (4) is compressed.
  • the press element (4) loosens.
  • At least one ball bearing (34) is positioned between the first wedge (31 ) and the second wedge (33) for reducing friction.
  • at least one needle bearing (35) is positioned between the second wedge (33) and the guide (3) for reducing friction. Thanks to this, the movement of the second wedge (33) with respect to the first wedge (31 ) is facilitated.
  • at least one recess (32) positioned on the first wedge (31 ) provides bending against the impacts which occur on the press element (4) and said at least one recess (32) prevents damaging of the first wedge (31 ), the second wedge (33) or the press element (4).
  • the drive unit (5) has at least one motor (51 ) for linearly moving the second wedge (33).
  • the motor (51 ) is an electric motor (51 ).
  • Said motor (51 ) is connected to at least one screwed shaft (52).
  • Said nut (53) is connected to the second wedge (33).
  • the motor (51 ) rotates the screwed shaft (52). As the screwed shaft (52) rotates, the nut (53) moves linearly. The linear movement of the nut (53) also moves the second wedge (33).
  • pluralities of press tools are fixed onto the guide (3) depending on the width of the work piece.
  • the drive unit (5) is energized and the second wedge (33) pushes and compresses the second wedge (33) towards the press element (4).
  • the second wedge (33) loosens the first wedge (31 ) and releases the press element (4).

Landscapes

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

Abstract

La présente invention concerne un ensemble presse de machine à cintrer (1) comprenant au moins un élément de presse (4) destiné à cintrer une pièce à travailler et au moins un guide (3) sur lequel ledit élément de presse (4) est positionné. L'amélioration de la présente invention réside en ce que l'ensemble presse de machine à cintrer en question (1) comprend au moins une première cale (31) qui s'étend dans la direction de l'axe dudit guide (3) et présente une forme se rétrécissant selon un angle prédéterminé, au moins une seconde cale (32) disposée sensiblement au voisinage de ladite première cale (31) et qui présente une forme s'élargissant selon un angle qui est sensiblement égal à l'angle de rétrécissement de la première cale (31), et au moins une unité d'entraînement (5) qui est reliée à la seconde cale (32) et déplace cette dernière sensiblement dans la direction de l'axe du guide (3).
PCT/TR2019/050849 2018-12-31 2019-10-10 Machine à cintrer WO2020142028A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19907955.9A EP3906125A4 (fr) 2018-12-31 2019-10-10 Machine à cintrer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/21364 2018-12-31
TR201821364 2018-12-31

Publications (1)

Publication Number Publication Date
WO2020142028A1 true WO2020142028A1 (fr) 2020-07-09

Family

ID=71407210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/050849 WO2020142028A1 (fr) 2018-12-31 2019-10-10 Machine à cintrer

Country Status (2)

Country Link
EP (1) EP3906125A4 (fr)
WO (1) WO2020142028A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009098A (en) * 1989-11-27 1991-04-23 Machinefabriek Wila B.V. Press and curve-forming means therefor
US6000273A (en) * 1998-10-21 1999-12-14 Stover; Carl Press brake punch holder
US20100229619A1 (en) * 2009-03-13 2010-09-16 Amada Europe Press brake for bending sheets
CN107931412A (zh) * 2017-12-20 2018-04-20 重庆黎帆装饰工程有限公司 一种护栏冲孔工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4895014A (en) * 1986-08-28 1990-01-23 Houston David L Failsafe tool clamping system for press brake
IT1201126B (it) * 1987-01-09 1989-01-27 Salvagnini Transferica Spa Macchina piegatrice per la produzione di pannelli in lamiera rettangolari a partire da fogli piani di lamiera
JPH0790282B2 (ja) * 1993-05-18 1995-10-04 株式会社アマダメトレックス プレスブレーキ用上型ホルダ装置
US6003360A (en) * 1997-07-01 1999-12-21 Wilson Tool International, Inc. Press brake tool holder
US6450004B1 (en) * 2001-10-09 2002-09-17 Douglas E. Edmondson Press brake punch holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009098A (en) * 1989-11-27 1991-04-23 Machinefabriek Wila B.V. Press and curve-forming means therefor
US6000273A (en) * 1998-10-21 1999-12-14 Stover; Carl Press brake punch holder
US20100229619A1 (en) * 2009-03-13 2010-09-16 Amada Europe Press brake for bending sheets
CN107931412A (zh) * 2017-12-20 2018-04-20 重庆黎帆装饰工程有限公司 一种护栏冲孔工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3906125A4 *

Also Published As

Publication number Publication date
EP3906125A1 (fr) 2021-11-10
EP3906125A4 (fr) 2022-02-23

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