WO2006026797A1 - Verfahren zur herstellung eines werkteils durch biegeumformung - Google Patents
Verfahren zur herstellung eines werkteils durch biegeumformung Download PDFInfo
- Publication number
- WO2006026797A1 WO2006026797A1 PCT/AT2005/000346 AT2005000346W WO2006026797A1 WO 2006026797 A1 WO2006026797 A1 WO 2006026797A1 AT 2005000346 W AT2005000346 W AT 2005000346W WO 2006026797 A1 WO2006026797 A1 WO 2006026797A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bending
- press
- adjusting
- drive means
- determined
- Prior art date
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
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0272—Deflection compensating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/044—Means preventing deflection of the frame, especially for C-frames
Definitions
- the invention relates to a method for operating a bending press, in particular Ab ⁇ canting press, as described in the preamble of claim 1.
- a press brake in which the table bar and / or the press bar have a slot extending over almost the entire length and extending over the entire thickness thereof.
- the object of the invention is to provide measures by means of which a plurality of als ⁇ passing load cases of press brakes bearing, an exact adjustment of a curvature of load-dependent bending deformations of the table beam and / or press bar is achieved.
- the surprising advantage here is that a compensation corresponding to the real load and thus deformation values is achieved in order to ensure a high-quality bending deformation, wherein it is further essential according to the invention to convert the bending into a pre-bending and finish-bending operation with a relief of the bending press from the To divide adjusting forces between the processes in order to adjust an adjustment device for forming a deformations on the bending press counter-curvature of at least one Stütz ⁇ surface for the bending tools or tool holders in a load-free Zu ⁇ and thus with significantly reduced restoring forces and be able to take high adjustment accuracy vor ⁇ . But are also advantageous measures according to the claims 2 to 4, because thus a low detection effort is achieved with a rapid translation.
- Fig. 1 is a press brake according to the invention in view
- FIG. 3 is a perspective view of a load case in the bending deformation of a workpiece
- Fig. 4 is a detail view with a schematic representation of a forming process, in view.
- Fig. 1 is a simplified schematic representation of a press brake 1 is shown, which consists of a machine frame 2, consisting of side cheeks 3, 4, a fixed Pres ⁇ senbalken 5 and a transverse dressing 6 is formed.
- a further press bar 8 is adjustably mounted in a plane formed by the press bar 5 and adjustable relative thereto, which in the ge Service ⁇ th embodiment by on the side cheeks 3, 4 immovably arranged
- Drive means 9, 10 of a drive device 11, eg hydraulic cylinders 12 of a hydraulic drive system 13, is actuated, wherein at least one hydraulic cylinder 12 at opposite end portions 14 of the adjustable press beam 8 with piston rods 15 engages whereby two axle positions 16, 17 are formed for force application of the adjusting forces of the drive means 9, 10 on the press bar 8.
- eccentric arrangements - as shown in subsequent figures - often common. If shorter bending tools 21, 22 deviating from the length 23 are used, they are often off-center with respect to a center plane 27 running perpendicular to a contact surface 26 and parallel to the side walls 3, 4, e.g. positioned to form two or more sets of tools, consisting of the bending tools 21, 22, for alternately use the assembly of the press brake 1 or to achieve a better access with already partially formed, angled workpieces 4 to the Biege ⁇ tools 20, 21.
- the drive device 11 comprises the hydraulic system 13 and essentially has a container 28 for a pressure medium, for example hydraulic oil, a pump unit 29, a control unit 30 and corresponding connection lines. tions 31 for acting on the hydraulic cylinder 12.
- various detection means 32 are provided for the regulation of the hydraulic system 13, wherein, as is known from the prior art, pressure sensors 33 are arranged in the connection lines 31, which preferably directly on the hydraulic cylinders 12 on the input side for pressure determination during a working stroke of the Press bar 8 in the bending operation on the workpiece 4, are attached.
- the operation of the press brake 1 is controlled and regulated by a control and / or regulating device 34, which essentially comprises a computer 35 with data memory 36, as well as required switching and control elements 37.
- the controller 34 is powered by a power source 38, e.g.
- a power grid 39 fed via lines 40 with energy and is connected via lines 41 to be controlled and supplied with energy control, detection and detection means, as these correspond to the prior art and are provided on such bending machines connected .
- a position measuring device 42 is connected in many cases to the control and / or regulating device 34, by means of which the respective setting position of the adjustable press bar 8 with respect to a reference position - selected zero position - is measured and monitored during a displacement process and as a variable Control parameter is used in a control program of a device for Verstellweg horrung.
- Fig. 3 the conditions on the adjustable press bar 8 are shown.
- the stationary press bar 5 is to be judged approximately with a counteracting effect.
- the determination of the deformation values is carried out by arithmetic operation carried out in the computer 35, using the determined adjustment forces - Arrow 44, 45 - and the machine data, to be determined directly upon detection of the adjusting forces.
- the press beams 5, 8 are equipped with the adjustable compensation devices 54, and form the support surfaces 18, 19 for the tool holders 20.
- Such Ausretesvorrich ⁇ lines 54 are as manually adjustable or adjustable via drives devices for Er ⁇ planning the Jacobwölbung 52 of the support surfaces 18, 19 for the tool holders 20.
- the bending tools 21, 22 are provided in an eccentric position to the center plane 27.
- a resultant force according to-arrow 55 -from a stress to be applied for the bending deformation of the workpiece 24 in accordance with the bending length 50 is displaced in the direction of one of the drive means 9, 10 by a distance 56 with respect to the middle plane 27 in the case of the assumed load.
- This process serves to determine the actual adjusting forces - according to arrow 44, 45.
- the adjusting forces which are introduced in the axle positions 16, 17, are determined from the measured medium pressure of the pressure sensors 33 and the pressure surface of the Hydraulikzy ⁇ cylinder 12. From the sum of the different sized adjusting forces - according to arrow 44, 45 - the resulting total force is calculated, - according to arrow 55 - which is required for the transformation of the workpiece 24 and results from the torque set the position
- the position of the bending tools 20, 21 and the resulting total force - arrow 55 - and bending length 50 define the concrete load case.
- Each of these load cases is a characteristic, e.g. Kl to KlO for, for example, ten hin ⁇ loaded load cases, as a predetermined set value for the balancing device 54 zu ⁇ ordered.
- this data by arithmetic operations in real time due to a stored in the computer 35 computer program directly from the determination of the adjustment forces - according to arrows 44, 45 - to determine using the fixed machine data and assign the result to the load case approximately corresponding characteristic value, with which adjustment data for the Ausretes ⁇ device 54 are available to a counter-curvature at the support surfaces 18, 19 to adjust.
- FIG. 4 shows, in a schematic representation, the forming and setting process for achieving a high-quality forming of a circuit board 25 and is described with reference to the FIGURE.
- the forming process on the blank 25 for forming a predetermined Um ⁇ forming angle 65 is divided into a pre-bending and a Fertigbiegevorgang.
- the pre-bending and in continuous lines the finished bending situation of the board 25 are shown in broken lines.
- the illustration shows the stationary press bar 5 and the compensation device 54 which forms the support surface 19 on which the tool holder 20 with the bending tool 22 is fastened.
- This arrangement is opposite to the press bar 8, also arranged with the compensating device 54 and the tool holder 20 and bending tool 21 adjustable.
- the drive means 9 is the hydraulic cylinder 12 with a cylinder chamber divided into a pressure chamber 66 and an annular space 67 by a piston 68.
- the supply of the pressure medium from the hydraulic system takes place via the hydraulic control unit 30 and the connecting lines 31.
- the pressure chamber 66 is preceded by a pressure sensor 69 as detection means 32 for an adjusting force during the forming process.
- the bending process is divided into two stages, this being another Possibility of a single-stage bending process can optionally be done.
- the measures described with the adjustment of the compensation device 54 can be made only at the beginning of a series, ie on the first part and the further production with the existing Ein ⁇ settings or the measures described can be done.
- the two-stage bending process can of course be used for every part of a series of parts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502005003499T DE502005003499D1 (de) | 2004-09-10 | 2005-08-30 | Verfahren zur herstellung eines werkteils durch biegeumformung |
US11/662,420 US20080066520A1 (en) | 2004-09-10 | 2005-08-30 | Method For Producing A Workpiece By Forming Under Bending Conditions |
EP05773976A EP1793946B1 (de) | 2004-09-10 | 2005-08-30 | Verfahren zur herstellung eines werkteils durch biegeumformung |
AT05773976T ATE390220T1 (de) | 2004-09-10 | 2005-08-30 | Verfahren zur herstellung eines werkteils durch biegeumformung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0151204A AT501264B8 (de) | 2004-09-10 | 2004-09-10 | Verfahren zur herstellung eines werkteils durch biegeumformung |
ATA1512/2004 | 2004-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006026797A1 true WO2006026797A1 (de) | 2006-03-16 |
Family
ID=35426966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2005/000346 WO2006026797A1 (de) | 2004-09-10 | 2005-08-30 | Verfahren zur herstellung eines werkteils durch biegeumformung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080066520A1 (de) |
EP (1) | EP1793946B1 (de) |
AT (2) | AT501264B8 (de) |
DE (1) | DE502005003499D1 (de) |
WO (1) | WO2006026797A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503644B1 (de) * | 2006-09-25 | 2007-12-15 | Trumpf Maschinen Austria Gmbh | Verfahren zum betrieb einer biegepresse, insbesondere abkantpresse |
EP2210681A3 (de) * | 2009-01-27 | 2013-05-22 | Trumpf Maschinen Austria GmbH & CO. KG. | Biegepresse mit einem mehrteiligen Pressenbalken |
WO2020034393A1 (zh) * | 2018-08-13 | 2020-02-20 | 南京邮电大学 | 一种适用于平面板材的折弯和折边一体化成型装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE530700C2 (sv) * | 2006-12-21 | 2008-08-19 | Hexagon Metrology Ab | Förfarande och anordning för kompensering av geometriska fel i bearbetningsmaskiner |
NL2006854C2 (nl) * | 2011-05-26 | 2012-12-05 | Wila Bv | Werkwijze en inrichting voor het compenseren van afwijkingen bij een vervormende bewerking tussen twee balken van een pers. |
AT511594B1 (de) * | 2012-01-31 | 2013-01-15 | Trumpf Maschinen Austria Gmbh | Biegepresse mit c-förmigem rahmen |
JP6243752B2 (ja) * | 2014-02-25 | 2017-12-06 | 株式会社アマダホールディングス | プレスブレーキ |
CN108637051B (zh) * | 2018-05-08 | 2019-12-27 | 明光市金世纪机械科技有限公司 | 一种汽车仪表架生产方法 |
CN108906937A (zh) * | 2018-08-23 | 2018-11-30 | 江苏扬力数控机床有限公司 | 一种折弯机 |
IT201800020791A1 (it) * | 2018-12-21 | 2020-06-21 | Bystronic Laser Ag | Panel bending machine with a system for maintaining the parallelism of the movable members and a respective method |
CN113281188A (zh) * | 2021-07-13 | 2021-08-20 | 潍坊市工程技师学院 | 一种机械成型材料用强度测试设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709555A1 (de) * | 1986-03-25 | 1987-10-22 | Amada Co Ltd | Abkantpresse |
EP0352097A2 (de) * | 1988-07-19 | 1990-01-24 | Yamazaki Mazak Kabushiki Kaisha | Biegemaschine und Werkstückmessungsverfahren in dieser Biegemaschine |
EP0440818A1 (de) * | 1989-08-31 | 1991-08-14 | Kabushiki Kaisha Komatsu Seisakusho | Regelanordnung für abkantpresse |
WO2000013813A1 (fr) * | 1998-09-09 | 2000-03-16 | Amada Europe | Presse plieuse a tablier inferieur actif |
EP1452302A1 (de) * | 2003-02-26 | 2004-09-01 | Bystronic Laser AG | Verfahren zur Korrigierung eines Biegvorgangs und Biegepresse |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH508426A (fr) * | 1969-05-19 | 1971-06-15 | Maison W Beyeler | Presse à plier comprenant un dispositif de compensation de la flexion |
DE2541094A1 (de) * | 1975-09-15 | 1977-03-17 | Seiji Shiokawa | Pressvorrichtung |
US4426873A (en) * | 1982-04-16 | 1984-01-24 | Canron Corporation | Deflection compensating means for press brakes and the like |
DE3245755A1 (de) * | 1982-12-10 | 1984-06-14 | Dorstener Maschinenfabrik Ag, 4270 Dorsten | Verfahren zum korrigieren der biegelinie des biegewerkzeuges einer biegepresse, insbesondere abkantpresse |
NL194364C (nl) * | 1988-07-15 | 2002-02-04 | Machf Wila B V | Kantpers en bombeermiddelen daarvoor. |
JP3431049B2 (ja) * | 1995-04-27 | 2003-07-28 | 株式会社小松製作所 | 曲げ加工機 |
AU2126101A (en) * | 1999-12-15 | 2001-06-25 | Trumpf Maschinen Austria Gmbh And Co. Kg. | Manufacturing device, especially a folding press |
US7007530B2 (en) * | 2000-01-17 | 2006-03-07 | Amada Company, Limited | Bending method and bending device |
-
2004
- 2004-09-10 AT AT0151204A patent/AT501264B8/de not_active IP Right Cessation
-
2005
- 2005-08-30 AT AT05773976T patent/ATE390220T1/de not_active IP Right Cessation
- 2005-08-30 EP EP05773976A patent/EP1793946B1/de not_active Not-in-force
- 2005-08-30 WO PCT/AT2005/000346 patent/WO2006026797A1/de active IP Right Grant
- 2005-08-30 DE DE502005003499T patent/DE502005003499D1/de active Active
- 2005-08-30 US US11/662,420 patent/US20080066520A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709555A1 (de) * | 1986-03-25 | 1987-10-22 | Amada Co Ltd | Abkantpresse |
EP0352097A2 (de) * | 1988-07-19 | 1990-01-24 | Yamazaki Mazak Kabushiki Kaisha | Biegemaschine und Werkstückmessungsverfahren in dieser Biegemaschine |
EP0440818A1 (de) * | 1989-08-31 | 1991-08-14 | Kabushiki Kaisha Komatsu Seisakusho | Regelanordnung für abkantpresse |
WO2000013813A1 (fr) * | 1998-09-09 | 2000-03-16 | Amada Europe | Presse plieuse a tablier inferieur actif |
EP1452302A1 (de) * | 2003-02-26 | 2004-09-01 | Bystronic Laser AG | Verfahren zur Korrigierung eines Biegvorgangs und Biegepresse |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503644B1 (de) * | 2006-09-25 | 2007-12-15 | Trumpf Maschinen Austria Gmbh | Verfahren zum betrieb einer biegepresse, insbesondere abkantpresse |
EP2210681A3 (de) * | 2009-01-27 | 2013-05-22 | Trumpf Maschinen Austria GmbH & CO. KG. | Biegepresse mit einem mehrteiligen Pressenbalken |
WO2020034393A1 (zh) * | 2018-08-13 | 2020-02-20 | 南京邮电大学 | 一种适用于平面板材的折弯和折边一体化成型装置 |
US11014136B2 (en) | 2018-08-13 | 2021-05-25 | Nanjing University Of Posts And Telecommunications | Integrated molding device suitable for bending and hemming of flat sheet |
Also Published As
Publication number | Publication date |
---|---|
AT501264B1 (de) | 2006-08-15 |
DE502005003499D1 (de) | 2008-05-08 |
EP1793946A1 (de) | 2007-06-13 |
AT501264A4 (de) | 2006-08-15 |
US20080066520A1 (en) | 2008-03-20 |
AT501264B8 (de) | 2007-02-15 |
EP1793946B1 (de) | 2008-03-26 |
ATE390220T1 (de) | 2008-04-15 |
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