US20140007639A1 - Bending machine for creating bends to the left and right - Google Patents

Bending machine for creating bends to the left and right Download PDF

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Publication number
US20140007639A1
US20140007639A1 US13/697,568 US201113697568A US2014007639A1 US 20140007639 A1 US20140007639 A1 US 20140007639A1 US 201113697568 A US201113697568 A US 201113697568A US 2014007639 A1 US2014007639 A1 US 2014007639A1
Authority
US
United States
Prior art keywords
bending
tube
lock
arm
tubes
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.)
Abandoned
Application number
US13/697,568
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English (en)
Inventor
August Wilhelm Schaefer
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.)
AWS SCHAEFER TECHNOLOGIE GmbH
Original Assignee
AWS SCHAEFER TECHNOLOGIE 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 AWS SCHAEFER TECHNOLOGIE GmbH filed Critical AWS SCHAEFER TECHNOLOGIE GmbH
Assigned to AWS SCHAEFER TECHNOLOGIE GMBH reassignment AWS SCHAEFER TECHNOLOGIE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHAEFER, AUGUST-WILHELM
Publication of US20140007639A1 publication Critical patent/US20140007639A1/en
Abandoned legal-status Critical Current

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    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • B21D7/025—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends 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
    • B21D7/00—Bending rods, profiles, or tubes
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
    • B21D7/162—Heating equipment

Definitions

  • the invention relates to a device and a method for bending tubes in the bending machines, where the tubes to be bent are heated inductively at the bending location.
  • the tubes are often thick-walled tubes with wall thicknesses of 3 to 120 mm and with large diameters of 50 to 1060 mm and weights of several tons.
  • Correspondingly large and heavy are the tube bending machines that are developed for this purpose. These can typically realize bending radii of 0.1 to 10 meters.
  • the straight end of the tube to be bent must be clamped in a feeding carriage while a so-called bending lock is attached to that end that is to be bent.
  • An annular device for inductive heating typically also referred to as an induction ring is located between the bending lock and the feeding carriage.
  • bending locks Due to the effective large forces that need to be taken up, bending locks often have a very bulky design and take up a lot of space.
  • DE 10 2007 022 004 A describes a relevant device.
  • the bending lock is mounted on a bending arm, and the beading arm can rotate around a vertical rotational axis.
  • tubes must be bent several times in different directions. This allows for achieving complex curvatures or, for example, S-shaped or serpentine tube geometries that can be manufactured very precisely under controlled conditions with such tube bending machines, which otherwise would only be possible at the future place of installation by using pipe fittings and welds and with limitations in the attainable precision.
  • Tube bending machines of the prior art can perform such bending steps in succession to some degree, however, if the desired pipe shape requires that the bending direction changes between two successive bending steps, significant installation work is required between the bending steps. In other words, the entire bending lock together with the bending arm must be disassembled and re-assembled each time and aligned at the mirror-inverted side of the tube to achieve this purpose. Or, the tube to be bent must be removed from a left-bending machine and fed into an additional machine, a right-bending machine. This causes geometric inaccuracies that can be eliminated only with significant effort.
  • DE 25 13 561 A 1 presents a machine with a small and a large bending arm, rotating one time to the right and one time to the left.
  • the tabs must be removed from the right-rotating side of the machine and re-clamped and positioned in the left-rotating side. This is associated with significant time expenditure and leads to inaccuracies.
  • the objective of the invention to provide an economic method, where such installation work can be reduced to a minimum, thereby significantly increasing the throughput of such bending machines when used for making multiple bends.
  • the invention achieves this objective with a device for bending tubes of large diameters, in different directions, wherein
  • the invention accomplishes this objective by a method for bending tubes of large diameters that is matched to the device, by
  • the tube During the change of the bending direction, the tube remains in an absolutely fixed position through being clamped in the feeding carriage.
  • tube movements are carried out between the individual bonding steps.
  • the tube may be rotated around the center axis of the tube or advanced longitudinally. In this manner, numerous bending steps can be carried out in succession.
  • FIG. 1 shows an isometric drawing of a double bending machine
  • FIG. 2 shows a top view
  • FIG. 3 shows a front view
  • FIGS. 4 a to 4 e show a top view of the individual procedures during multiple bending of a tube.
  • FIGS. 1 to 3 show such a double bending machine 1 with the two bending arms 2 and 3 and the bending locks 4 and 5 .
  • the tube to be bent (not shown) is located on the feeding carriage 6 and is pushed through the induction ring 7 , wherein either the bending loch 4 or the bending lock 5 grips the tube and bends it around the rotational axis 8 or the rotational axis 9 .
  • FIG. 4 shows the steps for an S-shaped bend of a tube 10 .
  • FIG. 4 a shows the initial state.
  • the tube 10 is located in the feeding carriage 6 ; its front tube end 11 is pushed through the induction ring 7 and is held by the bending lock 5 .
  • the bending arm 3 is thus positioned such that the desired bending radius 12 can be set and the bending arm 2 is moved out of the pivoting area.
  • FIG. 4 b shows the end of the first bending step, in this case a 135-degree bend.
  • FIG. 4 c shows that the bending lock 5 has been removed and the bending arm 3 has been moved away and that an advance by the feed length 13 has occurred.
  • FIG. 4 d shows that the bending arm 2 has been positioned such that the bending radius 14 can be set and that the bending lock 4 secures the tube 10 .
  • the bending arm 3 remains in its position out of the pivoting area.
  • FIG. 4 e shows the result of the second bending procedure, in this case a 135-degree bend that is exactly opposite to the first bend.
US13/697,568 2010-05-13 2011-04-26 Bending machine for creating bends to the left and right Abandoned US20140007639A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010020360.2A DE102010020360B4 (de) 2010-05-13 2010-05-13 Biegemaschine für linke und rechte Biegungen
DE102010020380 2010-05-13
PCT/DE2011/000438 WO2011141015A1 (de) 2010-05-13 2011-04-26 Biegemaschine für linke und rechte biegungen

Publications (1)

Publication Number Publication Date
US20140007639A1 true US20140007639A1 (en) 2014-01-09

Family

ID=44474987

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/697,568 Abandoned US20140007639A1 (en) 2010-05-13 2011-04-26 Bending machine for creating bends to the left and right

Country Status (10)

Country Link
US (1) US20140007639A1 (de)
EP (1) EP2569110B1 (de)
JP (1) JP2013526408A (de)
CN (1) CN103037994A (de)
BR (1) BR112012029020A2 (de)
CA (1) CA2798350A1 (de)
DE (1) DE102010020360B4 (de)
PL (1) PL2569110T3 (de)
RU (1) RU2560889C2 (de)
WO (1) WO2011141015A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10427351B2 (en) 2016-02-19 2019-10-01 General Electric Company Apparatus for induction heating and bending of thermoplastic composite tubes and a method for using same
US10478880B2 (en) 2015-04-28 2019-11-19 Aws Schaefer Technologie Gmbh Method for induction bend forming a compression-resistant pipe having a large wall thickness and a large diameter
US11344940B2 (en) 2020-01-22 2022-05-31 Futaba Industrial Co., Ltd. Manufacturing device for bent pipe and method of manufacturing bent pipe
KR20220145208A (ko) 2021-04-21 2022-10-28 김영남 좌우 스위치 밴딩장치

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103658271B (zh) * 2013-12-24 2016-02-10 中船重工鹏力（南京）智能装备系统有限公司 一种压缩机外排气管自动弯管装置
CN105268794A (zh) * 2015-11-20 2016-01-27 张家港市立业机械有限公司 弯管机及其全自动折弯方法
CN107282720B (zh) * 2017-07-31 2023-08-25 浙江和良智能装备有限公司 一种左右共弯型数控弯管机
CN107570562B (zh) * 2017-09-26 2024-04-23 张家港市立业机械有限公司 基于伺服驱动的全自动弯管机
CN107626783A (zh) * 2017-09-26 2018-01-26 张家港市立业机械有限公司 具有自动侦错功能的全自动弯管机
CN107626782A (zh) * 2017-09-26 2018-01-26 张家港市立业机械有限公司 高精度全自动弯管机
CN110216572B (zh) * 2019-06-29 2021-09-14 郑益丽 一种全自动弯管抛光机
CN110899558B (zh) * 2019-11-13 2021-08-27 阜阳晶宫绿建节能建筑有限责任公司 一种墙板制作用钢筋加工装置
CN114115113B (zh) * 2021-10-15 2023-11-21 上海发那科机器人有限公司 一种基于双机器人弯管系统的智能弯管轨迹的生成方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1326048A (en) * 1969-12-13 1973-08-08 Hilgers Maschinen Und Apparate Tube bending machine
US4022045A (en) * 1975-03-24 1977-05-10 Mannesmannrohen-Werke Ag Tube bending apparatus
US4596128A (en) * 1984-07-26 1986-06-24 Cojafex Bv Method and apparatus for bending elongate workpieces, particularly pipes
US4843859A (en) * 1987-07-14 1989-07-04 Chiyoda Kogyo Co., Ltd. Pipe bender

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255722A (ja) * 1985-05-08 1986-11-13 Ishikawajima Harima Heavy Ind Co Ltd チユ−ブの曲げ加工装置
RU2062156C1 (ru) * 1993-11-26 1996-06-20 Научно-исследовательский институт авиационной технологии и организации производства Способ гибки металлических труб
US6548008B1 (en) * 1998-06-01 2003-04-15 Komatsu Ltd. Method for bending SI materials and core wire member of SI materials
CN2332503Y (zh) * 1998-06-13 1999-08-11 洛阳高新技术开发区安力机械有限公司 单推双向弯管机
DE10060605A1 (de) * 2000-12-05 2002-06-06 Transfluid Maschb Gmbh Rohrbiegemaschine
JP2004122147A (ja) * 2002-09-30 2004-04-22 Babcock Hitachi Kk 管の加熱曲げ加工装置
DE102007022004B4 (de) * 2007-05-08 2010-07-15 AWS Schäfer Technologie GmbH Vorrichtung und Verfahren zum Biegen von Rohren
DE102007061186A1 (de) * 2007-12-17 2009-06-18 Manuel Burger Biegevorrichtung, insbesondere für rohrförmige Bauteile
CN201217027Y (zh) * 2008-07-15 2009-04-08 江苏常发制冷股份有限公司 一种小曲率弯管机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1326048A (en) * 1969-12-13 1973-08-08 Hilgers Maschinen Und Apparate Tube bending machine
US4022045A (en) * 1975-03-24 1977-05-10 Mannesmannrohen-Werke Ag Tube bending apparatus
US4596128A (en) * 1984-07-26 1986-06-24 Cojafex Bv Method and apparatus for bending elongate workpieces, particularly pipes
US4843859A (en) * 1987-07-14 1989-07-04 Chiyoda Kogyo Co., Ltd. Pipe bender

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10478880B2 (en) 2015-04-28 2019-11-19 Aws Schaefer Technologie Gmbh Method for induction bend forming a compression-resistant pipe having a large wall thickness and a large diameter
US10427351B2 (en) 2016-02-19 2019-10-01 General Electric Company Apparatus for induction heating and bending of thermoplastic composite tubes and a method for using same
US11344940B2 (en) 2020-01-22 2022-05-31 Futaba Industrial Co., Ltd. Manufacturing device for bent pipe and method of manufacturing bent pipe
KR20220145208A (ko) 2021-04-21 2022-10-28 김영남 좌우 스위치 밴딩장치

Also Published As

Publication number Publication date
RU2012153758A (ru) 2014-06-20
DE102010020360A1 (de) 2011-11-17
WO2011141015A1 (de) 2011-11-17
CA2798350A1 (en) 2011-11-17
PL2569110T3 (pl) 2015-02-27
CN103037994A (zh) 2013-04-10
EP2569110B1 (de) 2014-09-03
JP2013526408A (ja) 2013-06-24
BR112012029020A2 (pt) 2016-08-02
DE102010020360B4 (de) 2016-06-16
RU2560889C2 (ru) 2015-08-20
EP2569110A1 (de) 2013-03-20

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Date Code Title Description
AS Assignment

Owner name: AWS SCHAEFER TECHNOLOGIE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHAEFER, AUGUST-WILHELM;REEL/FRAME:029372/0400

Effective date: 20121031

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION