EP0121077B2 - Maschine zum Biegen von Strangmaterial - Google Patents

Maschine zum Biegen von Strangmaterial Download PDF

Info

Publication number: EP0121077B2
Authority: EP; European Patent Office
Prior art keywords: bending; extruded material; machine according; axis; bracket
Prior art date: 1983-03-31
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.): Expired - Lifetime

Application number

EP84101784A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0121077A3 (en

EP0121077A2 (de

EP0121077B1 (de

Inventor

Thomas Peter Lang

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.)

Individual

Original Assignee

Individual

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.)

1983-03-31

Filing date

1984-02-21

Publication date

1990-08-22

1984-02-21 Application filed by Individual filed Critical Individual

1984-10-10 Publication of EP0121077A2 publication Critical patent/EP0121077A2/de

1985-01-23 Publication of EP0121077A3 publication Critical patent/EP0121077A3/de

1987-04-08 Application granted granted Critical

1987-04-08 Publication of EP0121077B1 publication Critical patent/EP0121077B1/de

1990-08-22 Publication of EP0121077B2 publication Critical patent/EP0121077B2/de

2004-02-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
- 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
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only

Definitions

the invention relates to a machine for bending strand material, in particular brake lines, fuel lines and the like, with a central clamping device for the strand material and with a bending head which can be moved in the longitudinal direction along the axis of the bent strand material (strand material axis) and which on both sides of the clamping device one each, for example Bending molding designed as a bending roller and a pivotable in the common bending plane about the axis of the bending molding (bending molding axis), e.g. Has formed as a counter-pressure roller, the bending heads can be moved independently of one another along the strand material axis.
Such a bending machine is known from US-A-3 245 433. Either both bending heads can be moved synchronously or in mirror image to the central clamping plane of the strand material, or only one bending head is actuated for bending on one side of this clamping plane independently of the other bending head, which is stationary during this time.
the change in the bending plane is brought about by the fact that the strand of material is clamped in the middle of a rotary head, which changes the bending plane simultaneously and equally on both sides of the central clamping plane.
a machine for bending metal bars with a round full or tubular cross section is known.
the rod is clamped in the middle of a clamping device.
One bending head each is axially and mirror-symmetrically adjustable to the vertical machine center plane on each side of the central clamping device by means of a threaded spindle on guide rods, so that the same arches can be bent in succession from the outside to the strand material.
the bending plane of both bending heads is vertical.
the strand material can be rotated about its longitudinal axis with the aid of the central clamping swivel bearing before the next sheet in each case is placed on both sides of the clamping device at the same time.
the arches attached to the right and left at the same time inevitably lie in a common bending plane. If sheets are to be provided to the right and left of the clamping device that are not in a common bending plane, this can only be done by bending the individual sheets on both sides of the central clamping device in succession instead of at the same time, which means a considerable additional expenditure of time.
Brake lines, fuel lines or the like are strand material, which has considerable lengths in relation to the diameter and is therefore difficult to handle. Common to such bent parts is that they often have to have a longer straight center piece with adjoining, completely differently curved end sections on both sides. The individual bends can differ in their sequence according to length, bend angle and bend plane. The known bending machine described above is therefore not suitable for bending brake lines, fuel lines and the like. The like. Bending by hand on special one-purpose devices, as has hitherto been customary in brake lines, fuel lines or the like, is also too time-consuming and costly.
the bending heads can be pivoted independently of one another while rotating the bending plane formed by the bending molding and counter-pressure molding about the strand material axis.
the strand material remains firm during the bending processes, i.e. not rotatable relative to the machine bed, clamped.
the bending heads can form different bending planes independently of one another and can also provide different distances between the bends or bending angles independently of one another, so that any bends can be lined up independently of one another on both sides of the central clamping device. This not only found a structurally simple bending machine to solve the problem described above, but also created a bending machine with high output rates.
the required rotation of the bending planes on both sides of the central clamping device can be solved in a structurally simple manner, for example, by arranging swivel brackets for the bending heads on both sides of the central clamping device, the swivel axis of which coincides with the strand material axis in the region of the ends of axially outer and axially inner hoop arms and the hoop webs in the Distance parallel to the strand material axis.
the distance between the stirrups and the strand material axis can be chosen to be relatively large, there is a large amount of free space available for the ends of the material strand that can be bent in a very bulky manner, which is not the case with the bending machine described at the beginning because of the two guide rods and the displacement spindle for the bending head .
the free ends of the axially outer Bracket arms can each be connected in a rotationally fixed manner to the drive shaft of a swivel motor. With the help of the respective swivel motor, the swivel bracket and thus the bending plane can be rotated up to 300 ° and more.
a transport motor for the axial movement of the respective bending head is expediently arranged on the swivel bracket on each swivel bracket on the bracket web. In this way, expensive gears, transmissions or the like are avoided, since the respective transport motor, for example via threaded spindles known per se, can move the bending head assigned to it on the respective stirrup bar.
a robust construction of the bending machine is obtained when the respective swivel bracket is pivotably mounted between a middle and an outer bracket of the machine bed.
the two swivel brackets are pivotally mounted on a common central bracket, which also carries the clamping device.
the respective bending head can be attached to a holder, which also carries the drive motor for the bending molding and / or counter-pressure molding and is axially displaceably mounted on the bracket web of the respective swivel bracket. This also promotes the goal of simple construction.
an end stop for the strand material can be arranged axially adjustable on the respective outer consoles; the end stops are used to position the strand material in its initial position.
the respective end stop can also deliver a position signal dependent on its relative axial position to the central clamping device for program control of the method and pivoting of the respective bending head. This makes it possible to run certain bending processes using a standard bending program.
the respective bending head is preferably in its starting position when the strand material is clamped directly adjacent to the central clamping device, then it first moves axially outward along the strand material, in order then to be axially displaced from the outside in order to carry out the individual bending processes.
This mode of operation has the advantage that union nuts present on the strand material, as is often the case with brake lines, fuel lines or the like, are inevitably pushed to the outer end where they belong on the finished workpiece. After all, the union nuts may no longer be able to be pushed over the bent strand material into the desired outer position, especially if there are bends with a small radius of curvature.
the bending machine according to the invention can additionally be equipped with automatic devices for feeding the unbent strand material and / or removing the finished workpieces.
the strand material is e.g. subtracted from a coil.
the bending machine 1 shown in the drawing has a central clamping device 2 for clamping the central, essentially straight section of a strand material 20, the sections of which are to be provided on the outside with bends of different arc lengths, radii of curvature and bending planes.
the unbent strand material 20 forms the strand material axis S.
Each bending head 3, 3 ' has a bending molding 4, 4', which is designed as a bending roller in the illustrated case, and a counter pressure molding 5, 5 ', which is designed as a counter-pressure roller in the illustrated case.
the counter-pressure molding 5, 5' can be pivoted about the respective axis of the bending molding 4, 4 ', the bending molding axis B, B', for carrying out the bending process, for example from that shown in solid lines in FIG. 4 upper position to the lower position shown in dashed lines. 5 that it can be used as a bending molding 4, 4 'and counter pressure molding 5, 5', respectively, groove-free bending rollers or counter pressure rollers.
the latter has, for example, a fixed clamping jaw 21 and a counter clamping jaw 22 which can be set thereon and perpendicular to the strand material axis S and which is adjustable by an actuating piston 23 which can be acted upon by pressure medium D.
a slightly widening positioning slot 24 is provided, on the bottom of which clamping jaws 21 and counter-clamping jaws 22 cooperate.
Each bending head 3, 3 ' is carried at the upper end of a holder 15, 15', which holder 15, 15 'at the lower end has a drive motor 16, 16' for driving the bending molding 4, 4 'and / or the counter pressure molding 5, 5 ' having.
Holders 15, 15 'with bending head 3, 3' and drive motor 16, 16 ' are arranged so that they can be moved in the axial direction by means of a foot part 18, 18' on a bracket web 9, 9 'of a swivel bracket 6, 6'.
Each bracket web 9, 9 ' has at its ends an axially inner, essentially radially extending bracket arm 7, 7' and an axially outer, essentially radially extending bracket arm 8, 8 '.
the respective inner bracket arm 7, 7 ' is mounted on a central bracket 12 of the machine bed 14, which supports the clamping device 2, so that it can pivot about the strand material axis S.
the ends of the respective outer bracket arm 8, 8 ' are attached in a rotationally fixed manner to the drive shaft of a swivel motor 10, 10', which is intended and suitable for swiveling the respective swivel bracket 6, 6 'around the strand material axis S, as is shown in particular in FIG 3 emerges.
the beige plane E formed by the respective bending head 3, 3 ' can be rotated about the strand material axis S, so that the bending heads 3, 3' can independently carry out bends in different bending planes, while the strand material 20 is fixed in the clamping device 2 remains clamped.
the swivel motors 10, 10 ' are held firmly on outer brackets 13, 13' of the machine bed 14.
the axial adjustment of the holders 15, 15 'with the bending heads 3, 3' takes place via transport motors 11, 111, e.g. by means of threaded spindles (not shown) which engage the foot part) 18, 18 '.
the transport motors 11, 11 ' are arranged at the outer end of the bar webs 9, 9' on the swivel bars 6, 6 'and can be pivoted with them.
end stops 17, 17 ' which are axially displaceably mounted on the outer brackets 13, 13', are fed to the respective end of the strand material 20.
an electrical position signal corresponding to the position of the respective end stop 17, 17 ' is emitted, which serves as a reference value for the program control for the axial displacement and pivoting of the bending heads 3, 3', so that, depending on the axial position of the strand material 20 and the predetermined bending program required bends on both sides of the central clamping when the bending machine 1 is operated automatically also be placed in the correct place.
the bending heads 3, 3 ' When the strand material 20 is clamped, the bending heads 3, 3 'are in their starting position in the immediate vicinity of the central clamping device 2, as illustrated in FIGS. 1 and 2. Thereafter, the bending heads 3, 3 'are first moved to the outer end of the still straight strand material 20 to be bent without a bending process.
the union nuts which may be located on the strand material 20 are pushed to the outer ends of the strand material 20, where they belong on the finished workpiece. Then the individual bending processes are carried out by gradually working the bending heads 3, 3 ′ from the outside axially inward until they reach the central, just remaining section of the strand material 20, at which the strand material 20 is clamped in the central clamping device 2.
the bending heads 3, 3 ' can, independently of one another, carry out bends simultaneously in different bending planes, since this is determined exclusively by the respective pivot position of the respective pivot bracket 6, 6'.

EP84101784A 1983-03-31 1984-02-21 Maschine zum Biegen von Strangmaterial Expired - Lifetime EP0121077B2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19833311766 DE3311766A1 (de)	1983-03-31	1983-03-31	Maschine zum biegen von strangmaterial
DE3311766		1983-03-31

Publications (4)

Publication Number	Publication Date
EP0121077A2 EP0121077A2 (de)	1984-10-10
EP0121077A3 EP0121077A3 (en)	1985-01-23
EP0121077B1 EP0121077B1 (de)	1987-04-08
EP0121077B2 true EP0121077B2 (de)	1990-08-22

Family

ID=6195207

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP84101784A Expired - Lifetime EP0121077B2 (de)	1983-03-31	1984-02-21	Maschine zum Biegen von Strangmaterial

Country Status (4)

Country	Link
US (1)	US4604885A (un)
EP (1)	EP0121077B2 (un)
JP (1)	JPS59183938A (un)
DE (2)	DE8309569U1 (un)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4662204A (en) *	1985-01-17	1987-05-05	Usui Kokusai Sangyo Kabushiki Kaisha	Apparatus for automatically bending metallic tubes
JPH089063B2 (ja) *	1985-10-21	1996-01-31	臼井国際産業株式会社	パイプ自動ベンダーにおける曲げ加工ユニット装置
DE3544056A1 (de) *	1985-12-13	1987-06-25	Helmut Dischler	Biegemaschine
GB8623305D0 (en) *	1986-09-27	1986-10-29	Langbow Ltd	Bending machine
FR2610852B1 (fr) *	1987-02-17	1993-07-02	Picot Sa	Machine a cintrer les tubes, pourvue de deux tetes de cintrage
DE3811891A1 (de) *	1988-04-09	1989-06-15	Semmlinger Werner	Vorrichtung zum biegen von strangmaterial
JP2791569B2 (ja) *	1988-12-30	1998-08-27	臼井国際産業株式会社	細径金属管の曲げ加工装置
US4945747A (en) *	1989-05-11	1990-08-07	Chuo Electric Manufacturing Co., Ltd.	Apparatus for bending elongated materials in any direction
AT393640B (de) *	1989-09-20	1991-11-25	Evg Entwicklung Verwert Ges	Vorrichtung zum biegen von stabfoermigem material zu betonbewehrungselementen
JP3685526B2 (ja) *	1995-07-14	2005-08-17	臼井国際産業株式会社	パイプの曲げ加工装置
US20080027552A1 (en) *	1997-01-02	2008-01-31	Zucherman James F	Spine distraction implant and method
DE69931087T2 (de) *	1998-02-03	2006-09-21	Kabushiki Kaisha Opton	Biegevorrichtung
FR2795006B1 (fr) *	1999-06-21	2001-09-14	Bundy	Dispositif de cintrage d'elements metalliques allonges tels que des tubes
FR2831842B1 (fr) *	2001-11-06	2004-04-02	Vincent Ind	Machine automatique pour le formage de barres
ITVI20030076A1 (it) *	2003-04-15	2004-10-16	Pedrazzoli Ibp Spa	Metodo e macchina per realizzare la curvatura a raggio
FR2859653B1 (fr) *	2003-09-12	2006-03-17	Silfax Sa	Machine orbitale pour le cintrage des tubes
DE50307038D1 (de) *	2003-12-20	2007-05-24	Mewag Maschinenfabrik Ag	Biegemaschine zum Biegen von Strängen, insbesondere von rohrförmigen Strängen
ES2347913T3 (es) *	2007-02-07	2010-11-25	Wafios Aktiengesellschaft	Máquina dobladora.
ATE429987T1 (de) *	2007-03-14	2009-05-15	Wafios Ag	Greifvorrichtung zum ergreifen und haltern länglicher werkstücke, insbesondere bei biegemaschinen
US8234898B1 (en)	2008-12-12	2012-08-07	Wilson Brian S	Bending assembly for extruded stock material
CN104190765B (zh) *	2014-07-30	2016-02-10	南京阿福机器人有限公司	一种折弯机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA659978A (en) *		1963-03-26	Bos Karel	Tube bending apparatus
US2964085A (en) *	1955-12-21	1960-12-13	Ghiringhelli Enrico	Equipments for bending reinforcing irons of concrete or the like
US3245433A (en) *	1962-05-10	1966-04-12	Geometric Spring Company	Wire bending machine
DE1527394A1 (de) *	1963-06-14	1969-12-18	Claude Ragache	Universalbiegemaschine
DE1552970B2 (de) *	1965-04-24	1977-01-13		Maschine zum biegen von versteifungsbuegeln, armierungseisen o.dgl.
US3393714A (en) *	1965-05-19	1968-07-23	Lear Siegler Inc	Wire-bending apparatus
GB1200178A (en) *	1966-11-29	1970-07-29	Harry Goble	Improvements relating to bending machines for bending metal bars
US3373587A (en) *	1966-12-08	1968-03-19	Shubin Vladimir Nikolaevich	Automatic tube bending machines
US3493016A (en) *	1967-06-16	1970-02-03	Lear Siegler Inc	Wire bending machine
DE2918813A1 (de) *	1979-05-10	1980-11-20	Brueninghaus Gmbh Stahlwerke	Vorrichtung zum biegen von metallstaeben
DD200127B1 (de) *	1981-09-23	1987-01-21	Mansfeld Kombinat W Pieck Veb	Biegerolle mit umfangsrille zum biegen von rohren und stangen

1983
- 1983-03-31 DE DE19838309569U patent/DE8309569U1/de not_active Expired
- 1983-03-31 DE DE19833311766 patent/DE3311766A1/de active Granted
1984
- 1984-02-21 EP EP84101784A patent/EP0121077B2/de not_active Expired - Lifetime
- 1984-03-27 US US06/594,485 patent/US4604885A/en not_active Expired - Fee Related
- 1984-03-30 JP JP59061284A patent/JPS59183938A/ja active Granted

Also Published As

Publication number	Publication date
DE3311766C2 (un)	1988-12-29
EP0121077A3 (en)	1985-01-23
EP0121077A2 (de)	1984-10-10
JPS59183938A (ja)	1984-10-19
DE3311766A1 (de)	1984-10-04
US4604885A (en)	1986-08-12
EP0121077B1 (de)	1987-04-08
DE8309569U1 (de)	1985-02-21
JPH0321243B2 (un)	1991-03-22

Legal Events

Date	Code	Title	Description
1984-08-10	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1984-10-10	AK	Designated contracting states	Designated state(s): BE FR GB NL
1984-11-20	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1985-01-23	AK	Designated contracting states	Designated state(s): BE FR GB NL
1985-04-17	17P	Request for examination filed	Effective date: 19850131
1986-04-02	17Q	First examination report despatched	Effective date: 19860213
1987-02-21	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1987-04-08	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE FR GB NL
1987-07-03	ET	Fr: translation filed
1988-01-12	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1988-03-02	26	Opposition filed	Opponent name: PICOT SA Effective date: 19880104
1988-05-02	NLR1	Nl: opposition has been filed with the epo	Opponent name: PICOT SA
1990-07-07	PUAH	Patent maintained in amended form	Free format text: ORIGINAL CODE: 0009272
1990-07-07	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: PATENT MAINTAINED AS AMENDED
1990-08-22	27A	Patent maintained in amended form	Effective date: 19900822
1990-08-22	AK	Designated contracting states	Kind code of ref document: B2 Designated state(s): BE FR GB NL
1990-10-16	NLR2	Nl: decision of opposition
1990-12-03	NLR3	Nl: receipt of modified translations in the netherlands language after an opposition procedure
1990-12-14	ET3	Fr: translation filed ** decision concerning opposition
1993-01-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19930127 Year of fee payment: 10
1993-01-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19930129 Year of fee payment: 10
1993-02-01	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19930201 Year of fee payment: 10
1993-02-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19930228 Year of fee payment: 10
1994-02-21	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19940221
1994-02-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19940228
1994-08-31	BERE	Be: lapsed	Owner name: LANG THOMAS PETER Effective date: 19940228
1994-09-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19940901
1994-10-17	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1994-10-19	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19940221
1994-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19941031
1994-12-30	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

Publication	Publication Date	Title
EP0121077B2 (de)	1990-08-22	Maschine zum Biegen von Strangmaterial
EP0079587B1 (de)	1986-03-26	Drahtbiegemaschine
DE4010445C2 (de)	1998-11-19	Rohrbiegemaschine
EP1226887A1 (de)	2002-07-31	Maschine zum Biegen von strangförmigem Material, wie Rohren, Stangen, Profilen oder Metalldraht
EP2289643B1 (de)	2013-11-06	Vorrichtung zum Biegen länglicher Werkstücke
EP1459816B1 (de)	2006-09-06	Biegeeinrichtung mit Mehrniveaubiegewerkzeug sowie Spannbacken-und Gleitschienenstützeinheit für eine derartige Biegeeinrichtung
EP0701878A1 (de)	1996-03-20	Vorrichtung und Verfahren zum Herstellen von Rohren
DE2537382A1 (de)	1977-03-03	Vorrichtung zum biegen von rohren
DE10359465B4 (de)	2009-09-17	Biegeverarbeitungsvorrichtung für Rohre
DE102009024406B4 (de)	2013-04-04	Rotationsbiegewerkzeug mit Exzenterklemmung
DE2028560B2 (de)	1979-02-01	Verfahren und Vorrichtung zum Herstellen von Schraubennathrohren aus Metallband
EP0463132B1 (de)	1994-12-14	Biegemaschine zum biegen von stabförmigem material
EP0817753B1 (de)	1998-12-30	Vorrichtung zur aufnahme oder übernahme von stangenlosen wickelkernen
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DE60115451T2 (de)	2006-08-03	Verfahren und formvorrichtung zum verformen eines hohlen werkstücks
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EP2301687A1 (de)	2011-03-30	Verfahren und Vorrichtung zum Biegen von rohr- oder stabförmigem Material
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EP2308611B1 (de)	2015-05-20	Vorrichtung zum Biegen länglicher Werkstücke
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