EP3302841A1 - Verfahren zum herstellen von schlitzrohren aus blechtafeln - Google Patents
Verfahren zum herstellen von schlitzrohren aus blechtafelnInfo
- Publication number
- EP3302841A1 EP3302841A1 EP16727679.9A EP16727679A EP3302841A1 EP 3302841 A1 EP3302841 A1 EP 3302841A1 EP 16727679 A EP16727679 A EP 16727679A EP 3302841 A1 EP3302841 A1 EP 3302841A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- sheet metal
- metal sheet
- metal
- tool
- 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.)
- Granted
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
- B21D5/01—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
-
- 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
-
- 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
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
Definitions
- the invention relates to a method for producing slotted tubes from sheet metal plates, in particular thick metal sheets, wherein a provided on their long sides with bevelled edges metal sheet a Roh rform press, in which it on a two horizontally spaced support members lower tool lying on a lifting and lowerable upper tool is formed by applying a bending force progressively to the laterally seam welding with a gap opposite, longitudinal side bending edge having slot tube.
- a pipe forming or tube bending press has usually in a base frame one of two laterally spaced juxtaposed support or bending bodies existing lower tool and a vertically engageable from above against the lower die, carried by a raisable and lowerable bending bar, over the entire length the metal sheet extending upper tool with which a bending force can be applied to the resting on the lower die metal sheet.
- the metal sheet is pre-bent at the longitudinal edges in a first step, usually in a separate edge banding press.
- the pre-bending of the longitudinal edges is carried out so that the tube radius in the deformation of the slot tube in the region of the later seam, where the longitudinal edges of the bent to the tube sheet metal plates are opposite each other for Lekssnahtsch spaung with a gap formed uniformly.
- the thus pre-bent metal sheet is then inserted into the raw molding press and there the subjected to actual bending process.
- a bending force is applied to the metal sheet by depressing the press upper part, which sets under the action of the bending load value and carried by this, upper mold a deformation of the metal sheet. This procedure is repeated several times until the metal sheet has been converted to the slot pipe.
- the invention is therefore an object of the invention to provide a method of the type mentioned without the disadvantages described, so that the metal sheet from the beginning without problems progressively transform or can be molded.
- This object is achieved according to the invention in that at least the bending sections following the bending edges of the metal sheets immediately adjacent to each other from the outside inwards deviate from a numerically ascending bending sequence in the pilgrim step method. In this procedure for forming or molding of the metal sheet is not started at the first following the bending edge bending section, but the first bending step takes place in the second bending section. Then, the first, then the fourth, and then the third bending section and so on are formed.
- a preferred measure according to the invention provides that for carrying out the second bending step following the second bending step in the second bending section for forming the first bending section, the metal sheet is laterally withdrawn and prepositioned at a steep angle between the lower tools with support of the bending edge on one of the support bodies.
- An advantageous proposal of the invention provides that at least in relation to the immersed from the longitudinal axis of the progressively formed metal sheet upper tool predetermined once left-sided and once right-hand bending step is made with respect to the other Biefahrens lower indentation, and that finally by applying a From the outside on this non-circular preform in each case targeted in the previously on both sides of the middle of small molded areas impacting Zudrückkraft the finished slot tube is formed.
- z. B. is generated with a bend of 12 ° instead of a bend of 24 °, can form a largely circular slot tube geometry with minimal slot.
- Figure 1 schematically shows the beginning of the molding of a metal sheet according to the prior art on a pipe forming press, starting from top to bottom with the prepositioned metal sheet (a), the application of the bending force by a bending load (b) and after the force lifting off Bending rate (c);
- Figure 2 schematically shows the beginning of the molding of a metal sheet according to the pilgrim method, starting with the second bending section on a tube forming press, starting from top to bottom with the prepositioned metal sheet (a), the application of the bending force by the bending rate (b) and the bending rate (c) which lifts after the force has been applied;
- FIG. 4 shows a slit tube schematically showing the bending steps or bending sections according to the pilgrim step method
- FIG. 5B shows a reshaping or forming of a non-round preform in at least two pressing or bending steps, namely in a first bending step by application of force to the non-round preform to the left of the slot (FIG. 5A) and after rotation of the non-round preform in a second Bending step by applying force to the right of the slot or gap ( Figure 5B).
- pipe mold press 1 1 is provided on its longitudinal sides with Anbiegekanten 2, 3 sheet metal plate 4 to a finished slotted pipe or reshaped.
- a two horizontally spaced support body 6a, 6b-pointing lower tool 7 is provided, wherein the forming force is applied by a raisable and lowerable bending rate 8.
- the metal sheet 4 is positioned with respect to the bending rate 8 so that in the first forming or bending step, the forming force exerted by the bending rate 8 acts on the first bending section 101 following the bending edge 3, the bending edge 3 acting against the bending edge Support body 6b is pressed.
- the bending edge 3 is thereby supplemented by the width of the first bending section 101 with a sufficiently large support surface pressed against the support body 6b and thus can not slip during the forming process.
- the metal sheet is moved laterally from an example manipulator to the left and pre-positioned at a steep angle between the support bodies 6a, 6b due to the already deformed or pre-bent second bending portion 102 sufficient contact surface of the bending edge 3 on the support body 6b.
- the bending force exerted by means of the bending rate value 8 acts on the first bending section 101 following the bending edge 3 (see, for this, FIGS. 3 and 4).
- the metal sheet 4 is positioned with the bending edge 2 on the support body 6a, in which case the bending steps in the mit step method analogous to the above-described deformation of the first semicircle 10 in the order of the bending sections 108, 107, 1 10, 109, 1 12, 1 1 1, 1 13 are carried out (see Fig. 4).
- the bending sections 105 and 11 a smaller bending of the metal sheet 4 can be selectively carried out than in the other bending sections become.
- the compression force for producing the finished, largely circular slot tube 5 is applied from the outside to the non-circular preform 13 via the bending bar 8.
- the non-circular preform 13 is positioned so that the less molded portion 12a located to the left of the slit 14 is in a nine o'clock position as shown in FIG. 5A.
- the second press-bending step is illustrated in Figure 5B in the same sequence as before.
- the preform 13 which is still non-circular in its right-hand semicircle 10
- the area 12b which is formed less to the right of the slot or gap 14, occupies a three o'clock position.
- Zudrückkraft F (middle figure) brings the non-circular preform 13 in the final, largely circular shape of the finished slot tube 5 with a thereby achieved small slot or gap 14 (Fig. 5B Right figure on the outside).
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015210259.9A DE102015210259B4 (de) | 2015-06-03 | 2015-06-03 | Verfahren zum Herstellen von Schlitzrohren aus Blechtafeln |
PCT/EP2016/062556 WO2016193395A1 (de) | 2015-06-03 | 2016-06-02 | Verfahren zum herstellen von schlitzrohren aus blechtafeln |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3302841A1 true EP3302841A1 (de) | 2018-04-11 |
EP3302841B1 EP3302841B1 (de) | 2018-09-12 |
Family
ID=56112950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16727679.9A Active EP3302841B1 (de) | 2015-06-03 | 2016-06-02 | Verfahren zum herstellen von schlitzrohren aus blechtafeln |
Country Status (7)
Country | Link |
---|---|
US (1) | US11097326B2 (de) |
EP (1) | EP3302841B1 (de) |
CN (1) | CN108076631B (de) |
BR (1) | BR112017026098B1 (de) |
DE (1) | DE102015210259B4 (de) |
RU (1) | RU2690735C1 (de) |
WO (1) | WO2016193395A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7121559B2 (ja) | 2018-06-26 | 2022-08-18 | 川崎重工業株式会社 | 曲げ加工方法及び曲げ加工システム |
DE102018211311B4 (de) * | 2018-07-09 | 2020-03-26 | Sms Group Gmbh | Erweiterte Regelung JCO-Formpresse |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2591085A (en) * | 1949-06-06 | 1952-04-01 | Basalt Rock Company Inc | Machine for bending sheets |
US3466907A (en) * | 1966-01-03 | 1969-09-16 | Lincoln Electric Co | Metal ribbon,welding electrodes and method and apparatus for forming same |
US3605472A (en) * | 1968-05-21 | 1971-09-20 | Dengensha Mfg Co Ltd | Apparatus for fabrication of structures |
FR2210462B1 (de) * | 1972-12-15 | 1976-08-27 | Heraud | |
SE414129B (sv) * | 1977-01-11 | 1980-07-14 | Carbox Ab | Sett vid formning av ror fran ett i huvudsak plant emne |
US5642291A (en) * | 1989-12-22 | 1997-06-24 | Amada Company, Limited Of Japan | System for creating command and control signals for a complete operating cycle of a robot manipulator device of a sheet metal bending installation by simulating the operating environment |
DE4215807C2 (de) | 1992-05-15 | 1998-03-19 | Mannesmann Ag | Rohrbiegepresse |
DE4226402C2 (de) * | 1992-08-10 | 1994-06-01 | Althaus P Gerhard Dr Ing | Verfahren zur Herstellung von langen dickwandigen Rohren durch Biegen aus einer Metallplatte und Vorrichtung zur Ausführung des Verfahrens |
DE69529607T2 (de) * | 1994-11-09 | 2003-09-18 | Amada Co | Intelligentes system zur herstellung und ausführung eines metallplattenbiegeplans |
JP3741474B2 (ja) * | 1996-02-23 | 2006-02-01 | 株式会社小松製作所 | 曲げ加工機における曲げ順番選定方法および選定装置 |
RU2149721C1 (ru) * | 1998-12-15 | 2000-05-27 | Открытое акционерное общество "УралЛУКтрубмаш" | Способ формовки трубной заготовки и разрезная шайба для его осуществления |
US6202465B1 (en) * | 1999-03-05 | 2001-03-20 | Micro Stamping Corporation | Method for forming endoscopic instrument body |
DE10107567A1 (de) * | 2001-02-17 | 2002-08-29 | Sms Meer Gmbh | Verfahren zum Kaltwalzen von nahtlosen Kupferrohren |
WO2009023973A1 (de) * | 2007-08-21 | 2009-02-26 | Soutec Soudronic Ag | Vorrichtung und verfahren zum formen eines rohres aus einem blech |
DE102009017571B4 (de) * | 2009-04-17 | 2016-09-22 | Airbus Defence and Space GmbH | Verfahren und Einrichtung zur Herstellung von Rohrbögen oder Rohrbogensegmenten durch Umformen, sowie entsprechend hergestellte Rohrbögen oder Rohrbogensegmente |
WO2012092909A1 (de) * | 2011-01-07 | 2012-07-12 | Technische Universität Dortmund | Verfahren zum inkrementellen umformen von blechstrukturen, insbesondere zum umformen von rohren oder dgl. |
JP5614324B2 (ja) * | 2011-02-21 | 2014-10-29 | Jfeスチール株式会社 | 鋼管の製造方法 |
DE102011016173A1 (de) * | 2011-04-05 | 2012-10-11 | Bergrohr Gmbh Siegen | Blechbiegemaschine, Verwendung einer solchen zur Herstellung von Schlitzrohren sowie Verfahren zur Formung eines Bleches zu einem Schlitzrohr |
EP2529849B1 (de) * | 2011-05-31 | 2021-03-10 | SMS group GmbH | Verfahren und Vorrichtung zum Herstellen von Schlitzrohren aus Blechtafeln |
DE102011053676B4 (de) * | 2011-09-16 | 2016-09-08 | EISENBAU KRäMER GMBH | Rohrbiegemaschine |
KR101406633B1 (ko) * | 2012-05-14 | 2014-06-11 | 주식회사 포스코 | 조관 장치 및 조관 방법 |
IN2015DN00990A (de) * | 2012-08-09 | 2015-06-12 | Jfe Steel Corp | |
JP6070967B2 (ja) * | 2013-05-29 | 2017-02-01 | Jfeスチール株式会社 | 溶接鋼管の製造方法 |
DE102014116192A1 (de) * | 2014-11-06 | 2016-05-12 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Rohrbiegepresse |
CN104451381A (zh) * | 2014-12-25 | 2015-03-25 | 衡阳华菱钢管有限公司 | 大口径Gr3低温用无缝钢管及生产方法 |
-
2015
- 2015-06-03 DE DE102015210259.9A patent/DE102015210259B4/de not_active Withdrawn - After Issue
-
2016
- 2016-06-02 EP EP16727679.9A patent/EP3302841B1/de active Active
- 2016-06-02 WO PCT/EP2016/062556 patent/WO2016193395A1/de active Application Filing
- 2016-06-02 BR BR112017026098-0A patent/BR112017026098B1/pt active IP Right Grant
- 2016-06-02 RU RU2017139268A patent/RU2690735C1/ru active
- 2016-06-02 US US15/579,036 patent/US11097326B2/en active Active
- 2016-06-02 CN CN201680032222.9A patent/CN108076631B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN108076631A (zh) | 2018-05-25 |
DE102015210259A1 (de) | 2016-12-08 |
RU2690735C1 (ru) | 2019-06-05 |
BR112017026098B1 (pt) | 2021-06-15 |
WO2016193395A1 (de) | 2016-12-08 |
CN108076631B (zh) | 2020-09-22 |
EP3302841B1 (de) | 2018-09-12 |
US20180169727A1 (en) | 2018-06-21 |
DE102015210259B4 (de) | 2016-12-15 |
US11097326B2 (en) | 2021-08-24 |
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