EP0121077B1 - Machine à cintrer des tubes - Google Patents
Machine à cintrer des tubes Download PDFInfo
- Publication number
- EP0121077B1 EP0121077B1 EP84101784A EP84101784A EP0121077B1 EP 0121077 B1 EP0121077 B1 EP 0121077B1 EP 84101784 A EP84101784 A EP 84101784A EP 84101784 A EP84101784 A EP 84101784A EP 0121077 B1 EP0121077 B1 EP 0121077B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- extruded material
- machine according
- axis
- bracket
- 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.)
- Expired
Links
Images
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.
- a central clamping device for the strand material and with on both sides of the clamping device each a bending head which can be moved in the longitudinal direction along the axis of the unbent strand material (strand material axis), which each has a e.g. 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.
- Such a machine is known for example from DE-A-2 918 813 for bending metal bars with a round full or tubular cross section.
- 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 respective sheet - on both sides of the clamping device - is attached simultaneously.
- 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 sequence of the individual arches can differ according to length, bending angle and bending 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 moved independently of one another along the strand material axis and in that the bending heads can be pivoted independently of one another by 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 free space for the ends of the strand of material which can be bent in a very deformed 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 arm 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 bracket web so that it can be swiveled. This avoids expensive gears, transmissions or the like, 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 web.
- 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 supply 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 bending head 3, on the base of which clamping jaws 21 and counter-clamping jaws 22 interact.
- 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 with the aid of a foot part 18, 18' on a bracket web 9, 9 'of a swivel bracket 6, 6' in the axial direction.
- Each stirrup web 9, 9 ' has at its ends an axially inner, essentially radially extending stirrup arm 7, 7' and an axially outer, essentially radially extending stirrup 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 is 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 bending 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 bend independently of one another 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, 11 ', e.g. by means of threaded spindles (not shown) acting on 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.
- a 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 operations 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, on 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 in different bending planes simultaneously, since this is determined exclusively by the respective pivot position of the respective pivot bracket 6, 6'.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3311766 | 1983-03-31 | ||
DE19833311766 DE3311766A1 (de) | 1983-03-31 | 1983-03-31 | Maschine zum biegen von strangmaterial |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0121077A2 EP0121077A2 (fr) | 1984-10-10 |
EP0121077A3 EP0121077A3 (en) | 1985-01-23 |
EP0121077B1 true EP0121077B1 (fr) | 1987-04-08 |
EP0121077B2 EP0121077B2 (fr) | 1990-08-22 |
Family
ID=6195207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84101784A Expired - Lifetime EP0121077B2 (fr) | 1983-03-31 | 1984-02-21 | Machine à cintrer des tubes |
Country Status (4)
Country | Link |
---|---|
US (1) | US4604885A (fr) |
EP (1) | EP0121077B2 (fr) |
JP (1) | JPS59183938A (fr) |
DE (2) | DE8309569U1 (fr) |
Families Citing this family (21)
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 |
EP0934783B1 (fr) * | 1998-02-03 | 2006-05-03 | Kabushiki Kaisha Opton | Dispositif de cintrage |
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 |
EP1543892B1 (fr) * | 2003-12-20 | 2007-04-11 | Mewag Maschinenfabrik Ag | Dispositif à cintrer des barres, notamment des tuyaux |
DE502007005038D1 (de) * | 2007-02-07 | 2010-10-28 | Wafios Ag | Biegemaschine |
DE502007000672D1 (de) * | 2007-03-14 | 2009-06-10 | 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)
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/fr 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 |
---|---|
JPS59183938A (ja) | 1984-10-19 |
EP0121077A2 (fr) | 1984-10-10 |
JPH0321243B2 (fr) | 1991-03-22 |
DE3311766C2 (fr) | 1988-12-29 |
DE3311766A1 (de) | 1984-10-04 |
US4604885A (en) | 1986-08-12 |
EP0121077B2 (fr) | 1990-08-22 |
DE8309569U1 (de) | 1985-02-21 |
EP0121077A3 (en) | 1985-01-23 |
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