EP2366471A2 - Procédé de fabrication de tuyaux fendus à partir d'une tôle sur une presse à plier les tuyaux et presse à plier les tuyaux - Google Patents

Procédé de fabrication de tuyaux fendus à partir d'une tôle sur une presse à plier les tuyaux et presse à plier les tuyaux Download PDF

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Publication number
EP2366471A2
EP2366471A2 EP11000976A EP11000976A EP2366471A2 EP 2366471 A2 EP2366471 A2 EP 2366471A2 EP 11000976 A EP11000976 A EP 11000976A EP 11000976 A EP11000976 A EP 11000976A EP 2366471 A2 EP2366471 A2 EP 2366471A2
Authority
EP
European Patent Office
Prior art keywords
bending
tool
force
upper tool
metal sheet
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Withdrawn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
EP11000976A
Other languages
German (de)
English (en)
Other versions
EP2366471A3 (fr
Inventor
Uwe Feldmann
Manfred Kolbe
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.)
SMS Group GmbH
Original Assignee
SMS Meer 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 SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP2366471A2 publication Critical patent/EP2366471A2/fr
Publication of EP2366471A3 publication Critical patent/EP2366471A3/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Withdrawn legal-status Critical Current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
    • B21D5/01—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 method for producing slotted tubes of sheet metal plates on a tube bending press and a tube bending press, in a base frame consisting of two juxtaposed side by side supporting bodies lower tool and a vertically engageable from above against the lower tool, by a raised and lowered sword worn, extending over the entire length of the metal sheet extending upper tool with which a bending force can be applied to the resting on the lower tool metal sheet.
  • Such a generic O-shape press in frame construction is by the DE 42 15 807 C2 known.
  • the trained as a bending tool sword is guided vertically in side uprights of the frame.
  • This upper bending tool is attached to upper piston-cylinder units to a small extent gimbal movable and rests on this against the upper frame cross member.
  • the support bodies of the lower bending tool are carried by a table which also supports piston-cylinder units coaxial with the upper piston-cylinder units.
  • the counteracting piston-cylinder units are to prevent bending of the table, even if the lower frame crossbar should bend under the working load of the press.
  • individual piston-cylinder units are subjected to more or less pressure.
  • the invention is therefore based on the object to provide a method and a tube bending press of the generic type with which in particular large pipes can be achieved using a wide upper tool without out-of-roundness of the slot tube to be formed with reduced cycle time.
  • a pipe bending press suitable, in particular, for carrying out the method according to the invention is characterized in that a counter holder engaged against the metal sheet is arranged underneath the lower tool in alignment with the plane of the longitudinal axis of the blade of the upper tool.
  • the metal sheet thus undergoes a clamping system at several points, namely between the lateral ends of a the distance between the two supporting bodies of the lower tool possessing correspondingly large width upper tool and the two spaced apart support bodies of the lower tool and the centrally acting counter-holder, which at the same time steadily the metal sheet to the radius contour of the provided at its leading end with a bending radius upper tool raises or presses.
  • the counter-holder is connected according to a preferred embodiment of the invention with a piston rod of a hydraulic or pneumatic, connected to a pressure accumulator cylinder, which allows easy application of the counter-holding force and thus clamping the metal sheet.
  • the pressure accumulator ensures in a simple manner for a resilient, force-dependent automatic compliance of the counter-holder with a steady even with progressive bending process clamping the metal sheet.
  • An alternative proposal of the invention provides that the bending force on the raisable and lowerable upper tool applying adjusting means and the cylinder of the counter-holder for controlling the bending force dependent counterforce with lowering movement of the counter-holder are connected to each other via a measuring and control device.
  • a path-dependent control can be used.
  • the Fig. 1 shows a for forming a slotted tube between the tools of a further not shown, generically known tube bending press retracted or brought-brought metal sheet 1. This is based on two spaced support bodies 2a, 2b, which form the lower tool. The broad, trained on its leading head surface with a bending radius 3 upper tool 4 is disposed on a sword 5 and is raised by a direction indicated by double arrow actuator 6 or lowered to rest on the metal sheet, as in Fig. 1 to see.
  • a Kraftbeetzschungsmittel 7 For holding the metal sheet 1 with clamping during the entire forming process the tools below the metal sheet 1 is centrally assigned between the support members 2a, 2b of the lower tool a Kraftbeetzungsstoff 7. This consists of a cylinder 8, on the piston rod 9, a counter-holder 10 is attached. For the forming process, the counter-holder 10 by means of the cylinder 8, which is connected to a pressure accumulator 13, employed with its center of force 11 in the plane of the longitudinal axis 12 of the sword 5 of the upper tool 4 (FIG. Fig. 2 ).
  • the one phase of operation with advanced bending of the metal sheet 1 performing Fig. 2 indicates that the counter-holder 10 with the pressure accumulator 13 as a quasi feather while the bending process evades downward, but always the metal sheet 1 rests and this presses the entire surface of the bending radius 3 of the upper tool 4. By the center, maintained at the place of action Martinezung a lifting of the metal sheet 1 is avoided by the upper tool 4 and thus the geometry or roundness of the shaped slot tube not adversely affected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP11000976.8A 2010-03-19 2011-02-08 Procédé de fabrication de tuyaux fendus à partir d'une tôle sur une presse à plier les tuyaux et presse à plier les tuyaux Withdrawn EP2366471A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010012063A DE102010012063A1 (de) 2010-03-19 2010-03-19 Verfahren zum Herstellen von Schlitzrohren aus Blechtafeln auf einer Rohrbiegepresse und Rohrbiegepresse

Publications (2)

Publication Number Publication Date
EP2366471A2 true EP2366471A2 (fr) 2011-09-21
EP2366471A3 EP2366471A3 (fr) 2014-01-22

Family

ID=44342973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11000976.8A Withdrawn EP2366471A3 (fr) 2010-03-19 2011-02-08 Procédé de fabrication de tuyaux fendus à partir d'une tôle sur une presse à plier les tuyaux et presse à plier les tuyaux

Country Status (4)

Country Link
US (1) US20110226032A1 (fr)
EP (1) EP2366471A3 (fr)
JP (1) JP5615738B2 (fr)
DE (1) DE102010012063A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104175057A (zh) * 2014-07-29 2014-12-03 安徽省宁国市东波紧固件有限公司 一种钢丝挡圈专用整形装置
CN106270032A (zh) * 2016-11-17 2017-01-04 讯龙型材折弯（合肥）有限公司 一种u形折弯机构
CN109351853A (zh) * 2018-11-05 2019-02-19 南通江华热动力机械有限公司 一种三维弯管复合成型工装

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112355139B (zh) * 2020-10-28 2022-05-20 深圳市弗镭斯激光技术有限公司 一种板件压弯卷制成型方法
CN116116952A (zh) * 2023-04-13 2023-05-16 山西八建集团有限公司 一种便于多角度折弯的无损弧形管道加工机床

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215807C2 (de) 1992-05-15 1998-03-19 Mannesmann Ag Rohrbiegepresse

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6610068U (de) * 1966-07-30 1973-02-15 Paul Wuenn Rohrbiegemaschine.
DE2641573C3 (de) * 1976-09-13 1981-06-11 Mannesmann AG, 4000 Düsseldorf Blechbiegepresse
JPS5524779A (en) * 1978-08-14 1980-02-22 Nippon Steel Corp U-forming method and apparatus in uo-steel tube manufacturing process
US4373371A (en) * 1980-12-29 1983-02-15 Ford Motor Company Method of reducing springback in mechanically pressed sheet materials-I
JPS5929333B2 (ja) * 1982-09-03 1984-07-19 志賀製缶株式会社 金属板を円筒形に成形する方法
JPS6044129A (ja) * 1983-08-17 1985-03-09 Sumitomo Metal Ind Ltd Ｕプレス装置における成形方法及び装置
JP2517361B2 (ja) * 1988-05-30 1996-07-24 秀夫 小川 知能曲げプレス
US4912957A (en) * 1989-04-28 1990-04-03 Dayton Rogers Manufacturing Company Smart straightening press
US5481897A (en) * 1994-01-19 1996-01-09 Demmer Corporation Double plane bend former
JP3171798B2 (ja) * 1996-10-03 2001-06-04 株式会社アマダ プレスブレーキによる折曲げ加工方法及び同方法に使用するプレスブレーキ
JP3550941B2 (ja) * 1997-04-25 2004-08-04 トヨタ自動車株式会社 プレス曲げ方法及び装置
WO2002013987A1 (fr) * 2000-08-11 2002-02-21 Amada Company, Limited Procede de cintrage et dispositif de mise en oeuvre
JP2004195504A (ja) * 2002-12-18 2004-07-15 Nippon Steel Corp 鋼管の成形装置、成形方法、及び製造設備列
US7748308B2 (en) * 2005-09-26 2010-07-06 Unico, Inc. Pneumatic biasing of a linear actuator and implementations thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215807C2 (de) 1992-05-15 1998-03-19 Mannesmann Ag Rohrbiegepresse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104175057A (zh) * 2014-07-29 2014-12-03 安徽省宁国市东波紧固件有限公司 一种钢丝挡圈专用整形装置
CN106270032A (zh) * 2016-11-17 2017-01-04 讯龙型材折弯（合肥）有限公司 一种u形折弯机构
CN109351853A (zh) * 2018-11-05 2019-02-19 南通江华热动力机械有限公司 一种三维弯管复合成型工装

Also Published As

Publication number Publication date
EP2366471A3 (fr) 2014-01-22
JP2011194471A (ja) 2011-10-06
JP5615738B2 (ja) 2014-10-29
US20110226032A1 (en) 2011-09-22
DE102010012063A1 (de) 2011-09-22

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