EP0077314A1 - Dispositif pour plier une feuille de tôle - Google Patents
Dispositif pour plier une feuille de tôle Download PDFInfo
- Publication number
- EP0077314A1 EP0077314A1 EP82890102A EP82890102A EP0077314A1 EP 0077314 A1 EP0077314 A1 EP 0077314A1 EP 82890102 A EP82890102 A EP 82890102A EP 82890102 A EP82890102 A EP 82890102A EP 0077314 A1 EP0077314 A1 EP 0077314A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holding
- bending
- tool
- support
- carrier
- 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
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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
- B21D5/045—With a wiping movement of the bending blade
Definitions
- the invention relates to a device for folding a sheet metal plate, consisting of a frame with two holding punches attached to a support for clamping the sheet metal plate, of which at least one is adjustable with its support transversely to the clamping plane, and from at least one on the one hand approximately parallel and on the other hand, a bending tool movably mounted transversely to the clamping plane, each having a drive for the two directions of movement and interacting with a holding stamp as a counter tool.
- the bending tools are mounted in the frame and can be moved with the aid of drives which are also supported on the frame.
- the invention is therefore based on the object to avoid these deficiencies and to provide a device of the type described, in which not only a light construction is possible with simple constructional means, but also an undesirable bending of the holding punches as a result of the bending forces occurring during the bending process is largely prevented.
- the invention achieves the stated object in that the drive of the bending tool, which is approximately parallel to the clamping plane, is supported on the carrier of the holding plunger serving as a counter-tool.
- each of the holding stamps determining the bending edge and therefore serving as a counter-tool for the bending tool is particularly stressed by the drive of the bending tool acting approximately parallel to the clamping plane, the support of this drive on the carrier for the holding die serving as counter-tool results to a certain extent in a force short between the holding punch , the bending tool with its drive parallel to the clamping plane effective and the support of the holding plunger, so that other structural parts remain unloaded by these forces.
- This has the advantage that, for example, there is no canting for the holding plunger that is adjustable transversely to the clamping plane half of the frame guide, because the holding stamps are not pushed away from the frame.
- the support of the bending tool drive which acts approximately parallel to the clamping plane, on the carrier of the holding die forming the counter tool furthermore enables, in the case of a corresponding bending load, deformation in the sense of a bending apart of the holding die serving as the counter tool and the support of the bending tool drive. Since the position of the holding punch is determined by the frame, the unavoidable deformation will cause the support of the bending tool drive to bend out relative to the frame, as a result of which the desired course of the bending edge given by the holding punch can be ensured.
- the connection of the holding plunger or its carrier to the frame remains largely stress-free because the drive-related forces are not transmitted to the frame.
- the other holding die Due to the prevention of the deflection of the holding die serving as counter tool during the bending process according to the invention, the other holding die also remains free of larger bending loads, because pressure forces acting only transversely to the clamping plane are transmitted via the holding die serving as counter tool.
- the drive which is approximately parallel to the clamping plane, consists of at least two actuators which are articulated to the bracket-shaped lugs of the carrier. Due to the actuators distributed over the length of the bending tool, a more uniform loading of the bending tool over its length and thus a more uniform loading of the holding die serving as a counter-tool can be ensured, the support of the actuators on bow-shaped projections of the carrier ensuring a corresponding introduction of the supporting forces into the carrier . Still can there are unequal bending forces over the length of the holding punch. However, this can be taken into account in that the actuators can be adjusted with regard to their actuating force.
- the bending tool drive which is approximately parallel to the clamping plane, must be supported on the support for the adjustable holding stamp for bending about the holding punch which can be adjusted transversely to the clamping plane. If a bending tool is now to be used in a device equipped in this way for bending around the other holding punch held immovably in the frame, the support of the bending tool acting parallel to the clamping plane on the carrier of the adjustable holding punch would have a very unfavorable effect.
- bracket-shaped support lugs for supporting the drive which is approximately parallel to the clamping plane, can be positively connected to the support of the other holding stamp.
- This positive connection can also be used as a counter-tool for the other holding stamp as an analogue force short-circuit Bending tool, the drive and the support of the holding stamp can be reached.
- This form-fitting connection can be made very easily with the help of adjusting wedges, whereby it should be noted that the form-fitting connection must act parallel to the clamping plane, especially in the direction of action of the drive, because other conditions exist for the drive transversely to the clamping plane.
- the devices shown for folding a sheet metal sheet essentially consist of a frame 1 in which two holding stamps 2 are arranged for clamping a sheet metal sheet 3.
- the lower of the two holding stamps 2 is mounted so that it cannot be adjusted via its support 4 in the frame, while the upper holding stamp is fastened to a box-shaped support 5 which is height-adjustable in a guide 6 of the frame 1 and can be driven by means of a pair of cylinders 7.
- a bending tool 8 is provided for bending the metal sheet 3, the support 9 of which is articulated to brackets 10, so that the bending tool 8 can be adjusted both transversely to the clamping plane and parallel to it.
- two separate drives 11 and 12 act on the carrier 9 of the bending tool 8, which are each effective in the specified directions of movement of the bending tool 8.
- the interaction of the two drives 11 and 12 allows the bending tool 8 to be guided around the bending edge of the holding die 2 serving as a counter-tool, which results in particularly favorable bending conditions.
- the drive 11 for the bending tool 8 which acts approximately parallel to the clamping plane, causes a strong bending load on the holding die 2 serving as a counter-tool, there is a risk that this holding die will be bent out due to this load.
- the resulting odd bending edge course naturally causes uneven bending angles over the length of the bending edge, which should of course be avoided. If the holding die 2 forming the counter tool is adjustably mounted in the frame 1, as is the case in FIG. 1 for the upper holding die 2, then an undesired tilting of the holding die 2 with its carrier 5 in the guide 6 is also to be expected.
- the drive 11 is not on the frame 1, but supported on the carrier 5 for the holding die 2 forming the counter tool.
- the carrier 5 has a plurality of bow-shaped projections 13, to each of which an actuator 14 designed as a cylinder is articulated, which is connected to the carrier 9 of the bending tool 8. Since the drive 11 consists of several actuators 14 distributed over the length of the bending tool 8, which are supported on separate lugs 13 of the carrier 5, a more uniform introduction of the forces on both the bending tool and the carrier 5 can be ensured and thus the risk of Bending the upper holding punch 2 can be reduced.
- Non-uniformities in the course of the bending edge can at best result from an uneven introduction of bending force, which can be taken into account by adjusting the actuating force of the actuating drives 14.
- actuators designed as cylinders such control of the cylinders is particularly simple.
- the device can be converted and a corresponding bending tool can be used, although the advantage of the force short circuit via the carrier of the holding die forming the counter-tool would be lost if not special measures are taken.
- a positive connection between the bow-shaped lugs 13 of the carrier 5 for the upper holding stamp 2 and the carrier 4 of the lower holding stamp 2 is made for this purpose, so that this positive connection in turn has an equivalent effect on the Counter tool forming lower support stamp 2 and the support of the drive 11 results.
- each of the bow-shaped projections 13 carries a support body 15 which runs in the longitudinal direction of the bending tool 8 and which projects into a recess 16 in the frame and can be fixed in the recess 16 by means of wedges 17.
- These wedges 17 are connected to an actuating rod 18 which can be driven via an actuator 19, so that the wedges 17 can be engaged and disengaged together via the actuating rod 18.
- In the release position give the wedges 17 an adjustment path for the support body 15, which allows the bow-shaped lugs 13 to be bent out.
- two bending tools 8a and 8b are provided, as shown in FIGS. 5 and 6, it can be bent up and down without retrofitting.
- the deformation of the holding punches 2a and 2b forming the respective counter tool is prevented by a corresponding support of the drives 11a and 11b on the supports 4 and 5 of the holding punch serving as a counter tool, the individual actuators 14 of the drives 11a and 11b acting parallel to the clamping plane being supported on bracket-shaped lugs 13a of the carrier 5 for the holding stamp 2a and on similar lugs 13b of the carrier 4 for the holding stamp 2b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT4329/81 | 1981-10-09 | ||
AT0432981A AT372883B (de) | 1981-10-09 | 1981-10-09 | Vorrichtung zum abkanten einer blechtafel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0077314A1 true EP0077314A1 (fr) | 1983-04-20 |
EP0077314B1 EP0077314B1 (fr) | 1984-09-19 |
Family
ID=3562583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82890102A Expired EP0077314B1 (fr) | 1981-10-09 | 1982-07-15 | Dispositif pour plier une feuille de tôle |
Country Status (5)
Country | Link |
---|---|
US (1) | US4783984A (fr) |
EP (1) | EP0077314B1 (fr) |
JP (1) | JPS5870924A (fr) |
AT (1) | AT372883B (fr) |
DE (1) | DE3260784D1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0293964A2 (fr) * | 1987-06-03 | 1988-12-07 | SALVAGNINI S.p.A. | Machine pour plier des tôles ayant une pince de serrage à compression uniforme |
EP0298056A2 (fr) * | 1987-07-03 | 1989-01-04 | Antonio Codatto | Presse plieuse pour tôles |
EP0338949A1 (fr) * | 1988-04-20 | 1989-10-25 | Dimeco Alipresse Societe Anonyme : | Machine à plier les tôles |
EP0353680A2 (fr) * | 1988-08-03 | 1990-02-07 | Rolf Nagel | Dispositif pour obtenir des rebords de tôle par pliage |
EP0490828A1 (fr) * | 1990-12-07 | 1992-06-17 | SAMAT S.r.l. | Machine de pliage pour tôles |
EP0567193A1 (fr) * | 1992-04-22 | 1993-10-27 | SAPIM AMADA S.p.A. | Dispositif pour mouvoir les lames d'une presse pour plier des tôles |
ES2063658A2 (es) * | 1992-09-21 | 1995-01-01 | Goiti S Coop Ltda | Maquina perfeccionada plegadora de chapa. |
US6516648B1 (en) * | 1999-01-19 | 2003-02-11 | Reinhardt Maschinenbau Gmbh | Bending machine for flat material |
CN108746268A (zh) * | 2018-05-29 | 2018-11-06 | 郑文豪 | 一种电力母线槽自动生产机器人 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3605815C2 (de) * | 1986-02-22 | 1995-06-22 | Weinbrenner Paul Maschbau | Vorrichtung zum Biegebearbeiten von Blechtafeln |
JPH06226354A (ja) * | 1993-01-29 | 1994-08-16 | Amada Co Ltd | 板材折曲げ加工装置 |
IT1278356B1 (it) * | 1995-02-06 | 1997-11-20 | Sapim Amada Spa | Attrezzatura piegatrice per lamiere. |
DE19523226A1 (de) * | 1995-06-27 | 1995-12-14 | Joachim Linde | Verfahren und Vorrichtung zum Biegen von Blechen |
ES2190298B1 (es) * | 2000-01-31 | 2004-10-16 | Goiti, S.Coop | Maquina plegadora de chapas metalicas. |
EP1638710A1 (fr) * | 2003-06-04 | 2006-03-29 | Finn-Power OY | Systeme permettant de mesurer l'angle de cintrage d'une machine destinee a cintrer des toles et/ou des sections metalliques ainsi qu'un procede et une machine destines a cintrer des toles et/ou des sections metalliques au moyen de ce systeme |
CN103372586A (zh) * | 2012-04-28 | 2013-10-30 | 李向普 | 新型数控折弯机 |
ITUB20160836A1 (it) * | 2016-02-18 | 2017-08-18 | Olma S R L | Gruppo di piegatura di una macchina utensile pannellatrice |
CN105921572B (zh) * | 2016-06-30 | 2018-03-27 | 江苏亚威机床股份有限公司 | 一种金属板料折边机折边机构 |
EP3970876A1 (fr) | 2020-09-16 | 2022-03-23 | Bystronic Laser AG | Cintreuse de panneaux pour le pliage de tôles |
CN112207168A (zh) * | 2020-10-23 | 2021-01-12 | 南京邮电大学 | 一种折边机折边梁驱动机构 |
CN112742916B (zh) * | 2020-12-23 | 2022-08-30 | 佛山市美宝家家居有限公司 | 一种自动上料下料的折弯装置 |
CN112792167B (zh) * | 2020-12-23 | 2022-11-22 | 江苏慧切智能制造科技有限公司 | 一种板材全自动折弯方法 |
DE102023201552A1 (de) | 2023-02-22 | 2024-08-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Bearbeitungseinheit für im Wesentlichen ebene Werkstücke |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1807811B2 (de) * | 1968-11-08 | 1974-02-21 | Rudolf 8033 Planegg Linner | Abkantmaschine |
DE2839978A1 (de) * | 1977-09-19 | 1979-03-29 | Salvagnini Transferica Spa | Maschine zur herstellung von rechteckigen blechteilen mit gebogenen kanten |
DE2825591A1 (de) * | 1977-11-14 | 1979-05-17 | Thalmann Konstruktionen Ag | Biegemaschine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1966472A (en) * | 1931-10-05 | 1934-07-17 | Multigraph Co | Apparatus for making address plates |
US2822545A (en) * | 1953-12-29 | 1958-02-11 | Sperry Rand Corp | Terminal crimping die |
US2937689A (en) * | 1957-02-08 | 1960-05-24 | Uniflex Engineering Inc | Material bending apparatus |
US3009201A (en) * | 1959-10-29 | 1961-11-21 | Fawn Fabricators Inc | Material bending machine with roll bar |
US3149376A (en) * | 1963-08-28 | 1964-09-22 | Top Fab Co | Post-forming machine |
US3914974A (en) * | 1974-04-19 | 1975-10-28 | William Devore | Lithographic plate bending arrangement |
DE2542239A1 (de) * | 1975-09-23 | 1977-03-31 | Ernst Zentner Kg Elektro Feinm | Biegevorrichtung fuer bleche o.dgl. |
US3994152A (en) * | 1976-02-19 | 1976-11-30 | Wolters Oswald H | Machine for bending cleat edges |
JPS5456969A (en) * | 1977-10-14 | 1979-05-08 | Komatsu Mfg Co Ltd | Automatic metal mold exchanging apparatus of press brake |
US4185487A (en) * | 1978-05-30 | 1980-01-29 | Engel Industries, Inc | Side access cleat former apparatus and method of use |
AT363756B (de) * | 1979-06-20 | 1981-08-25 | Krems Huette Gmbh | Biegemaschine |
-
1981
- 1981-10-09 AT AT0432981A patent/AT372883B/de not_active IP Right Cessation
-
1982
- 1982-07-15 DE DE8282890102T patent/DE3260784D1/de not_active Expired
- 1982-07-15 EP EP82890102A patent/EP0077314B1/fr not_active Expired
- 1982-08-23 US US06/410,617 patent/US4783984A/en not_active Expired - Lifetime
- 1982-10-08 JP JP57176442A patent/JPS5870924A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1807811B2 (de) * | 1968-11-08 | 1974-02-21 | Rudolf 8033 Planegg Linner | Abkantmaschine |
DE2839978A1 (de) * | 1977-09-19 | 1979-03-29 | Salvagnini Transferica Spa | Maschine zur herstellung von rechteckigen blechteilen mit gebogenen kanten |
DE2825591A1 (de) * | 1977-11-14 | 1979-05-17 | Thalmann Konstruktionen Ag | Biegemaschine |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0293964A3 (en) * | 1987-06-03 | 1990-08-16 | Salvagnini Transferica S.P.A. | Bending machine for sheet metal panels having a blank holder with uniform compression |
EP0293964A2 (fr) * | 1987-06-03 | 1988-12-07 | SALVAGNINI S.p.A. | Machine pour plier des tôles ayant une pince de serrage à compression uniforme |
EP0298056A2 (fr) * | 1987-07-03 | 1989-01-04 | Antonio Codatto | Presse plieuse pour tôles |
EP0298056A3 (en) * | 1987-07-03 | 1990-08-29 | Antonio Codatto | Bending press for sheets |
FR2630356A1 (fr) * | 1988-04-20 | 1989-10-27 | Dimeco Alipresse | Machine a plier les toles |
US4944176A (en) * | 1988-04-20 | 1990-07-31 | Societe Anonyme Dimeco Alipresse | Metal plate bending machine |
EP0338949A1 (fr) * | 1988-04-20 | 1989-10-25 | Dimeco Alipresse Societe Anonyme : | Machine à plier les tôles |
EP0353680A2 (fr) * | 1988-08-03 | 1990-02-07 | Rolf Nagel | Dispositif pour obtenir des rebords de tôle par pliage |
EP0353680A3 (en) * | 1988-08-03 | 1990-11-28 | Rolf Nagel | Apparatus for producing plate flanges by bending |
EP0490828A1 (fr) * | 1990-12-07 | 1992-06-17 | SAMAT S.r.l. | Machine de pliage pour tôles |
EP0567193A1 (fr) * | 1992-04-22 | 1993-10-27 | SAPIM AMADA S.p.A. | Dispositif pour mouvoir les lames d'une presse pour plier des tôles |
ES2063658A2 (es) * | 1992-09-21 | 1995-01-01 | Goiti S Coop Ltda | Maquina perfeccionada plegadora de chapa. |
US6516648B1 (en) * | 1999-01-19 | 2003-02-11 | Reinhardt Maschinenbau Gmbh | Bending machine for flat material |
CN108746268A (zh) * | 2018-05-29 | 2018-11-06 | 郑文豪 | 一种电力母线槽自动生产机器人 |
Also Published As
Publication number | Publication date |
---|---|
EP0077314B1 (fr) | 1984-09-19 |
DE3260784D1 (en) | 1984-10-25 |
US4783984A (en) | 1988-11-15 |
JPS5870924A (ja) | 1983-04-27 |
JPH033524B2 (fr) | 1991-01-18 |
ATA432981A (de) | 1983-04-15 |
AT372883B (de) | 1983-11-25 |
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