EP4619174A1 - Optimierter tisch für biegemaschine - Google Patents
Optimierter tisch für biegemaschineInfo
- Publication number
- EP4619174A1 EP4619174A1 EP23822227.7A EP23822227A EP4619174A1 EP 4619174 A1 EP4619174 A1 EP 4619174A1 EP 23822227 A EP23822227 A EP 23822227A EP 4619174 A1 EP4619174 A1 EP 4619174A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- support structure
- machine
- longitudinal direction
- press
- 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.)
- Pending
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
-
- 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
-
- 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
- B30B15/047—C-shaped frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
-
- 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
Definitions
- the invention relates to a bending machine for production from sheet metal by forming in a bending press process or a press brake process with a specially designed machine table and to a method for producing bending machines according to the bending machine according to the invention.
- a press brake in which the side surfaces, the lower support and the upper support are assembled from separate plate, plate stack and/or rod parts, contain tension elements which absorb tensile stresses, pressing elements which absorb pressing stresses and transmission elements between tension elements and pressing elements for transmitting forces therebetween, wherein the tension elements, the pressing elements and the transmission elements are connected to one another by mechanical connecting elements without welding.
- the structure of a bending machine known from this document in particular the structure of the machine table or the press beam of the bending machine, has the disadvantage that the deformation behavior of the machine table due to the pressing forces during the press brake process can only be influenced to a limited extent by the structure of the machine table and thus an individual wedge camber must be provided for the bending length and machine tonnage in order to compensate for the deformations.
- the object of the present invention was to overcome the disadvantages of the prior art and to provide a device and a method by means of which the deformation behavior of the machine table or the press beam is or can be improved.
- the bending machine according to the invention for producing workpieces from sheet metal by forming in a bending press process or a press brake process comprises
- a machine frame comprising two frame cheeks spaced apart from each other in a longitudinal direction, wherein respective outer surfaces of the frame cheeks are aligned normal to the longitudinal direction,
- a machine table comprising a beam-like support structure, wherein the beam-like Supporting structure is fixed on a support surface, extends along the longitudinal direction and is connected at its longitudinally spaced end areas to a frame cheek of the machine frame,
- press beam which is adjustable along guide arrangements on the machine frame and aligned along the longitudinal direction, wherein the press beam is adjustable in the direction towards and from the machine table by at least one drive means
- the beam-like support structure comprises at least one lower flange element and at least one web element, which at least one lower flange element and which at least one web element form a one-piece welded construction.
- the machine table or the bending tools supported on the machine table serve to support a workpiece to be produced during the press brake process.
- the machine table must therefore have a certain rigidity and load-bearing capacity in accordance with the resulting loads in order to ensure that the workpieces to be produced can be bent or folded.
- the forces are absorbed by the support structure or the beam-like support structure of the machine table.
- the rigidity of the support structure or the beam-like support structure is influenced to a greater extent by the mass portions of the support structure that are further away from the center of mass of the support structure than by those that are closer to the center of mass.
- the design of the support structure according to the invention thus makes it possible to save weight and thus manufacturing costs compared to a one-piece machine table made of solid sheet metal or compared to a solid material machine table, while on the other hand the rigidity of the support structure or the machine table is still ensured by the provision of a one-piece welded construction made of at least one lower flange section and one web section in accordance with the requirements of the production plant.
- the one-piece welded construction can be formed from individual elements or welded together, whereby the individual elements need not only comprise a bottom flange element and a web element, but can also comprise other individual elements.
- a desired or required deformation behavior of the beam-like support structure or the machine table can be set.
- a desired and essentially identical or almost identical deformation behavior of the support structure for a bending length for bending machines with different machine tonnages or with different pressing forces.
- This has the synergistic advantage that a wedge camber that is identical in construction or at least identical in terms of its requirements can be used for bending machines with the same or at least almost the same bending length and different machine tonnages.
- the beam-like support structure further comprises at least one upper chord element, which forms the one-piece welded construction with the at least one web element. This allows the deformation behavior or the rigidity of the beam-like support structure to be further improved or better adapted to the requirements of the bending machine.
- a cross-sectional plane is defined normal to the longitudinal direction, and that the upper chord element in the cross-sectional plane has an upper chord element width in the direction parallel to the contact surface, wherein the upper chord element width in the cross-sectional plane is greater than a web element width in the direction parallel to the contact surface of the at least one web element, wherein the upper chord element width is in particular 1.5 times to 5 times the web element width.
- a cross-sectional plane is defined normal to the longitudinal direction, and that the lower chord element in the cross-sectional plane has a lower chord element width in the direction parallel to the contact surface, wherein the lower chord element width in the cross-sectional plane is greater than a web element width in the direction parallel to the contact surface of the at least one web element, wherein the lower chord element width is in particular 1.5 times to 5 times the web element width.
- a cross-sectional plane is defined normal to the longitudinal direction, and that the at least one web element in the cross-sectional plane has a web height in the direction normal to the contact surface, wherein the web height in the cross-sectional plane is greater than a lower flange height in the direction normal to the contact surface, wherein the web height is in particular 2 times to 10 times the lower flange height.
- a cross-sectional plane is defined normal to the longitudinal direction, and that the at least one web element in the cross-sectional plane has a web height in the direction normal to the contact surface, wherein the web height in the cross-sectional plane is greater than an upper flange height in the direction normal to the contact surface, wherein the web height is in particular 2 times to 10 times the upper flange height.
- the beam-like support structure comprises an odd number, in particular three, five or seven, preferably three, of web elements arranged in a row in the longitudinal direction, which web elements form the one-piece welded construction.
- the rigidity of the beam-like support structure can be controlled in the longitudinal direction, whereby the total weight of the machine table or the bending machine can be reduced.
- a cross-sectional plane is defined normal to the longitudinal direction, and that the web elements which are closest to the end regions of the beam-like support structure have a smaller web element width in the cross-sectional plane in the direction parallel to the contact surface than the web element arranged centrally in the longitudinal direction of the beam-like support structure. This can ensure that in the middle region the transverse stability of the beam-like support structure is increased, whereby the width of the web elements can be reduced for the other web elements if necessary depending on the machine tonnage, while still achieving the same or essentially similar deformation behavior in the press brake process. This also allows weight to be saved, making the manufacture of such a bending machine more economical.
- the web elements are arranged at a distance from one another in the longitudinal direction. This can further save weight, although the web elements arranged in a row still allow the intended deformation behavior to be achieved.
- the machine table comprises at least one plate element, wherein the at least one plate element is arranged on a first longitudinal side of the beam-like support structure, which first longitudinal side is opposite a second longitudinal side of the beam-like support structure, and which second longitudinal side is assigned closest to the machine frame, and that the at least one plate element covers the beam-like support structure at least in sections and can be connected to the beam-like support structure by means of at least one fastening means, preferably detachable as required, such as several screws.
- the at least one plate element the operator of the bending machine can continue to be given the familiar appearance of a solid machine table with a beam-like support structure made of a plate, which gives the operator a feeling of increased safety of the bending machine.
- the plate element also protects the individual elements of the beam-like support structure from contamination.
- the plate element or its specific design can also serve as an indicator of a possible excessive stress on the beam-shaped supporting structure and, as a result, of a plastic deformation of the plate element.
- the machine table it is possible for the machine table to comprise several plate elements spaced apart from one another in the longitudinal direction and arranged on the first longitudinal side of the beam-like support structure. This makes it easier to assemble the machine table when manufacturing the bending machine, and on the other hand, plate elements with different geometric dimensions can be used in The beams can be arranged in a row in the longitudinal direction. The connection with the respective fastening elements can contribute to the strength of the beam-like supporting structure.
- At least one plate element comprises a holding or guiding device for at least one additional unit, wherein the at least one additional unit is selected from the group consisting of workpiece support unit, bending angle measuring device and workpiece storage.
- a bending angle measuring device for example, can be positioned on the holding or guiding device of the at least one plate element, which can also be displaced in the longitudinal direction along the holding or guiding device. This increases the functionality of the at least one plate element.
- a bending machine with different working areas that are arranged in a row in the longitudinal direction can be equipped with a correspondingly necessary additional unit in each working area.
- the machine table comprises an adjusting device for actively adjusting the first support surface between a substantially flat and a curved profile of the support surface, wherein the first support surface is formed by a first beam element of the machine table and is supported on the beam-like support structure.
- the adjusting device can be, for example, a wedge camber.
- the press beam comprises a press beam support structure, which press beam support structure, like the beam-like support structure, is designed as another one-piece welded construction. Since the press beam and the machine table generally exhibit deformations during the press brake process, the deformation behavior of the press beam can also be influenced in accordance with the welded construction made up of individual elements. This in turn results in a reduction in the weight of the bending machine, which lowers the manufacturing costs of the bending machine.
- the press beam comprises a second adjusting device for actively adjusting the second support surface between a substantially flat and a curved profile, wherein the second support surface is formed by a second beam element of the press beam and is supported on the press beam support structure.
- the press beam support structure and the beam-like support structure are each designed as a one-piece welded construction, a substantially uniform deformation behavior of the respective support structure can be set. This creates the possibility that, for example, the adjusting device and the second adjusting device can be designed essentially identically for a certain bending length of the bending machine. This reduces the manufacturing costs of the bending machine.
- the invention further relates to a method for producing bending machines.
- a bending machine comprises
- a machine frame comprising two frame cheeks spaced apart from each other in a longitudinal direction, wherein respective outer surfaces of the frame cheeks are aligned normal to the longitudinal direction,
- the machine table comprising a beam-like support structure, wherein the beam-like support structure is fixedly positioned on a support surface, extends along the longitudinal direction and is connected at its end regions spaced apart from one another in the longitudinal direction to a frame cheek of the machine frame,
- press beam which is adjustable along guide arrangements on the machine frame and aligned along the longitudinal direction with a longitudinally extending Press beam length, wherein the press beam is adjustable with at least one drive means in the direction towards and from the machine table,
- the beam-like support structure is formed from individual elements, which individual elements comprise at least one lower chord element and at least one web element, wherein a one-piece welded construction is formed from the individual elements by welding the individual elements together, and
- the individual elements of the one-piece welded construction of bending machines with a substantially identical machine table length are dimensioned in such a way that the first support surface has a substantially identical deformation of the first support surface or a substantially identical total deformation of the first support surface and the second support surface during the bending press process or the press brake process, regardless of the pressing forces that can be applied by means of the drive means of the bending machine.
- the advantage here is that the individual elements can be easily welded together to form a one-piece welded construction, although the beam-like support structure can be manufactured by appropriate selection of the individual elements in such a way that a uniform or essentially identical deformation behavior can be set during the press brake process for bending machines with different machine tonnage or with different bending forces and with the same bending length.
- This enables the use of essentially identical adjusting devices or wedge cambering devices.
- the manufacturing costs are thus reduced by using a series of adjusting devices and by the weight reduction due to the replacement of the usually used solid plates with the beam-like support structure or the one-piece welded construction.
- an upper chord element as an additional individual element for the one-piece welded construction. This allows the deformation behavior or the rigidity of the beam-like support structure to be further improved or better adapted to the requirements of the bending machine.
- additional web elements are provided as additional individual elements for the one-piece welded construction, with a total of three, five or seven web elements arranged in a row in the longitudinal direction being provided for the one-piece welded construction. This allows the rigidity of the beam-like support structure to be controlled in the longitudinal direction, whereby the overall weight of the machine table or the bending machine can be further reduced.
- the press beam comprises a press beam support structure, which press beam support structure, like the beam-like support structure, is designed as a further one-piece welded construction from individual elements, wherein the individual elements of the further one-piece welded construction of bending machines with a substantially identical press beam length are dimensioned in such a way that the second support surface has a substantially identical deformation of the second support surface or a substantially identical total deformation of the first support surface and the second support surface during the bending press process or the press brake process, regardless of a pressing force that can be applied by means of the drive means of the bending machine, and that the individual elements are welded together to form the further one-piece welded construction.
- the press beam support structure and the beam-like support structure are each designed as a one-piece welded construction, a substantially uniform deformation behavior of the respective support structure can be set. This makes it possible, for example, for the adjusting device and the second adjusting device for a specific bending length of the bending machine to be constructed essentially identically. This reduces the manufacturing costs of the bending machine.
- Fig. 1 a bending machine
- Fig. 2 is a view of a bending machine according to Fig. 1 with deformations occurring during the press brake process;
- Fig. 3 a possible design of the machine frame with a beam-like supporting structure of the machine table;
- Fig. 4 shows a partial section through a possible design of a machine table of the bending machine in a cross-sectional plane
- Fig. 5 shows a possible design of the beam-like supporting structure with a plate element.
- a bending machine 1 and system components of the bending machine 1 as well as a partial section through a possible embodiment of a machine table 2 of the bending machine 1 are shown in a highly schematically simplified representation, which bending machine 1 in the present case is designed in particular for the free bending of workpieces 3 to be made from sheet metal by means of die bending or by means of a bending press process or a press brake process.
- a metallic material is usually used as the starting material, which in its undeformed state can be referred to as a flat material or flat element.
- some system components of the bending machine 1 have not been shown for the sake of better clarity.
- the bending machine 1 comprises a fixed machine frame 8 with two frame cheeks 10 spaced apart from one another in the longitudinal direction 9.
- the frame cheeks 10 each have an outer surface 11, wherein the frame cheeks 10 are positioned at a distance from one another such that the outer surfaces 11 are aligned normal to the longitudinal direction 9.
- Fig. 2 shows the front view of the bending machine 1, with which straight-line bending operations or, in special cases, the forming of open areas can be carried out on a workpiece 3.
- the bending machine 1 comprises two press beams that are adjustable relative to one another and act on the workpiece 3 with bending tools in the form of a bending punch and a bending die.
- the lower fixed press beam shown in Fig. 1 and Fig. 2 is referred to below as the machine table 2, which together with a bending die 4 serves as a support for the workpiece 3 and interacts with the adjustable press beam 5 and a bending punch 6 arranged thereon.
- the press beam 5 is adjustably mounted on the fixed machine frame 8 of the bending machine 1 by means of a guide arrangement 7 or by means of guide arrangements 7 and is driven by a drive means 12, for example in the form of hydraulic cylinders.
- Fig. 2 shows, in general, during a bending process, an elastic deformation 16 or deflection (indicated by dashed lines) will occur on the press beam 5, since the lines of action of the forces of the drive means 12 and the force exerted by the workpiece 3 on the press beam 5 do not coincide.
- a deformation 16 or deflection is also possible on the machine table 2, since the lines of action of the forces exerted by the workpiece 3 on the machine table 2 and the forces exerted by a support surface 14 on the machine table 2 do not coincide.
- the bending machine 1 is mounted on a total of four support surfaces of the frame cheeks 10 on the support surface 14. Accordingly, the deformation 16 can affect the entire machine table 2.
- Such a deformation 16 or a deflection of the press beam 5 or the machine table 2 means that a workpiece 3 in the middle of the edge to be bent is pressed less deeply into the bending die 4 by the bending punch 6 of the machine table 2 than at the ends of the bending edge, which is why different bending angles can arise on the bent workpiece 3 along the bending edge and such a workpiece 3 may have to be reworked or may not be usable.
- the forces 17 causing the respective deformation 16 or deflection are shown in simplified form by arrows in Fig. 2 on the machine table 2 or on the press beam 5.
- a uniform penetration depth of the bending punch 6 into a workpiece 3 can be achieved by compensating for a deformation 16 on the press beam 5, on the A crowning of the machine table 2 is actively brought about by means of an adjusting device 18, which approximately corresponds to the deformation 16 on the press beam 5.
- the first support surface 19 and the second support surface 20 are provided for supporting bending tools 21, such as a bending die 4 or a bending punch 6, or tool holder devices 22 for bending tools 21, so that the cambering of the previous description can be transferred accordingly.
- a machine table 2 Possible embodiments of a machine table 2 according to the invention are described below, wherein the structural features and measures can also be transferred analogously to an adjustable press beam 5 and thus not only in the case of a machine table 2 but also in the case of a press beam 5 the support surface for a bending die 4 or a bending punch 6 can be actively adjusted from a flat starting position into a convex, outwardly curved shape.
- Fig. 3 shows a possible embodiment of the machine frame 8 with a beam-like support structure 13 of the machine table 2.
- the support structure 13 is fixedly positioned on the support surface 14 and extends along the longitudinal direction 9.
- the beam-like support structure 13 is connected to the frame cheeks 10 at the end regions 15 spaced apart from one another in the longitudinal direction 9.
- the frame cheeks 10 can have a total of four support surfaces, by means of which support surfaces the machine frame 8 is set up or supported on the support surface 14.
- the beam-like support structure 13 is designed as a one-piece welded construction 23, which one-piece welded construction 23 can be composed of individual elements or can be formed by welding individual elements together.
- the individual elements can comprise at least one lower chord element 24 and at least one web element 25.
- the individual elements can further comprise at least one upper chord element 26.
- the dimensions of the individual elements namely at least the cross-sectional dimensions of the individual elements in a cross-sectional plane 27 normal to the longitudinal direction 9, can be selected in such a way that, in the manufacture of bending machines, such as the bending machine 1 according to the invention, with a substantially equal or identical machine table length 28 in the longitudinal direction 9 and with different pressing forces 17, substantially the same deformations 16 or deflections of at least the first support surface 19 occur during the bending press process or during the press brake process, wherein a total deformation relating to the press beam 5 and the machine table 2 is decisive for the equally set deformation 16.
- the cross-sectional dimensions of the individual elements can include an upper chord element width 29, a web element width 30, a lower chord element width 31 as well as a web height 32, a lower chord height 33 and an upper chord height 34.
- the machine table 2 can comprise an adjusting device 18.
- the adjusting device 18 can be used to actively adjust the first support surface 19 between a substantially flat and a cambered course of the first support surface 19.
- the first support surface 19 can be formed by a first beam element 41 of the machine table 2.
- the beam-like support structure 13 is conceivable in which the individual multiple web elements 25 each have a different web element width 30.
- Another possible embodiment is also conceivable in which the multiple web elements 25 are arranged at a distance from one another along the longitudinal direction 9.
- combinations of the two embodiments are conceivable.
- a desired deformation behavior or a desired deformation 16 of the beam-like support structure can be achieved in a simple and cost-effective manner. 13 during the press brake process.
- the beam-like support structure 13 is always manufactured as a one-piece welded construction 23 from the individual elements, which also comprise the multiple web elements 25.
- the individual elements which also comprise the multiple web elements 25.
- an odd number of the multiple web elements 25 is provided.
- the centrally arranged web element 25 has a larger web element width 30 relative to the other web elements 25 spaced from the central web element 25 in the direction of the end regions 15 of the beam-like support structure 13.
- the beam-like support structure 13 can have a first longitudinal side 36 and a second longitudinal side 37, wherein the first longitudinal side 36 is opposite the second longitudinal side 37 and wherein the second longitudinal side 37 is closest to the machine frame 8.
- At least one plate element 35 can be arranged on the first longitudinal side 36, which is enclosed by the machine table 2.
- the at least one plate element 35 covers the beam-like support structure 13 at least in sections and can be connected to the beam-like support structure 13 by means of a fastening means 38, such as one or more screws, preferably detachable if necessary.
- the first longitudinal side 36 is covered by a plurality of plate elements 35, wherein the plurality of plate elements 35 can each be connected to the beam-like support structure 13 by means of fastening means 38.
- the plate element 35 or each plate element 35 of the plurality of plate elements 35 can have a holding or guiding device 39, or a holding or guiding device 39 can be positioned or held on the plate element 35, which holding or guiding device 39 can be provided for receiving an additional unit 40.
- An additional unit 40 can be, for example, a workpiece support unit, a bending angle measuring device or a workpiece storage device.
- the second longitudinal side 37 is covered by a plate element 35 or by a plurality of plate elements 35, wherein the plurality of plate elements 35 can each be connected to the beam-like support structure 13 by means of fastening means 38. It is also conceivable that plate elements 35 covering the first longitudinal side 36 are coupled with plate elements 35 covering the second longitudinal side 37, so that a clear reference to each other in order, for example, to use additional units 40 in a position-related manner relative to each other.
- the press beam 5 can comprise a press beam support structure 42, wherein the press beam support structure 42 can be formed in the same way as the beam-like support structure 13 as a further one-piece welded construction 43 like the one-piece welded construction 23 from individual elements.
- the press beam 5 can comprise a second adjusting device 44 for actively adjusting the second support surface 20 between a substantially flat and a cambered course of the second support surface 20.
- the same or a structurally similar adjusting device 18 can be used for the press beam 5 and for the machine table 2.
- Adjustment device first support surface second support surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50872/2022A AT526736B1 (de) | 2022-11-17 | 2022-11-17 | Optimierter Tisch für Biegemaschine |
| PCT/AT2023/060397 WO2024103097A1 (de) | 2022-11-17 | 2023-11-16 | Optimierter tisch für biegemaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4619174A1 true EP4619174A1 (de) | 2025-09-24 |
Family
ID=89222311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23822227.7A Pending EP4619174A1 (de) | 2022-11-17 | 2023-11-16 | Optimierter tisch für biegemaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4619174A1 (de) |
| AT (1) | AT526736B1 (de) |
| WO (1) | WO2024103097A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2312755A (en) * | 1940-05-11 | 1943-03-02 | Cleveland Crane Eng | Bending brake |
| FR1041446A (fr) * | 1951-08-31 | 1953-10-23 | Procédé pour compenser la flexion des sommiers des presses à plier les tôles ou similaires | |
| JPS52156163A (en) * | 1976-06-23 | 1977-12-26 | Komatsu Mfg Co Ltd | Device for exchanging metal mold of press brake |
| FI125471B (fi) | 2009-12-11 | 2015-10-15 | Aliko Oy Ltd | Menetelmä särmäyspuristimen rungon muodostamiseksi ja särmäyspuristin |
| AT512465B1 (de) * | 2012-02-10 | 2014-01-15 | Trumpf Maschinen Austria Gmbh | Presstisch oder pressbalken mit verstellbarem balkenelement |
| AT512174B1 (de) * | 2012-02-13 | 2013-06-15 | Trumpf Maschinen Austria Gmbh | Biegepresse mit verstellbarem balkenelement |
| PL2908961T3 (pl) * | 2012-10-22 | 2020-03-31 | Adira - Metal Forming Solutions, S.A. | Prasa krawędziowa |
| CN206305246U (zh) * | 2016-12-28 | 2017-07-07 | 中国化学工程第三建设有限公司 | 一种钢板压弧装置 |
| CN109675973A (zh) * | 2017-10-19 | 2019-04-26 | 中铁七局集团西安铁路工程有限公司 | 一种t梁横隔板联接件弯曲加工装置和加工方法 |
| CN114570797B (zh) * | 2020-11-30 | 2025-02-14 | 北京长征火箭装备科技有限公司 | 一种用于冷柜外壳端头迷宫槽型的数控成型设备 |
| CN215845014U (zh) * | 2021-09-14 | 2022-02-18 | 昆明嘉绩钢结构工程有限责任公司 | 一种节能型液压钢板压弯机 |
-
2022
- 2022-11-17 AT ATA50872/2022A patent/AT526736B1/de active
-
2023
- 2023-11-16 EP EP23822227.7A patent/EP4619174A1/de active Pending
- 2023-11-16 WO PCT/AT2023/060397 patent/WO2024103097A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AT526736A1 (de) | 2024-06-15 |
| WO2024103097A1 (de) | 2024-05-23 |
| AT526736B1 (de) | 2025-08-15 |
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