EP0911093A1 - Device for hemming sheet metal, especially bodywork in automobile construction - Google Patents
Device for hemming sheet metal, especially bodywork in automobile construction Download PDFInfo
- Publication number
- EP0911093A1 EP0911093A1 EP98118123A EP98118123A EP0911093A1 EP 0911093 A1 EP0911093 A1 EP 0911093A1 EP 98118123 A EP98118123 A EP 98118123A EP 98118123 A EP98118123 A EP 98118123A EP 0911093 A1 EP0911093 A1 EP 0911093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base frame
- plunger
- folding
- compressed air
- ram
- 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
- B21D5/16—Folding; Pleating
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
Definitions
- the invention relates to a device for folding sheet metal, in particular body panels in the automotive industry, in one Base frame a ram with a folding bed on top of the sheets to be folded presses against the stationary folding tools.
- the invention is therefore based on the task of driving the plunger in to improve the way that the construction is simplified.
- the proposal according to the invention is used as a tappet drive
- Air cushions are used to increase the working stroke and the force to fold the To be able to apply sheets pneumatically.
- the air cushion is between Base frame and ram arranged. It can in particular in the Base frame and at least the entire base of the ram take in.
- the force is advantageously above a chamfer arranged on the circumference of the ram is initiated, so that this is greatly simplified in its outer shape and dimensions.
- the ram needs only small stiffening ribs, since the folding force is no longer from the center to the Edge area of the plunger must be initiated.
- it can Compressed air cushion in a standardized substructure of the base frame of the Folding device can be accommodated.
- the air cushion is not only through the embedding in the base frame, but also fixed via the plunger and over several circumferential guide rails in the direction of movement of the ram in the base frame.
- Adjustment of the fold adjustable stops in appropriate Recesses of the base frame can be arranged.
- To connect one Compressed air hose to the compressed air cushion can also be in the base plate a corresponding passage opening of the plunger, so that the compressed air hose not through the base frame, but from above the preferably centrally arranged passage opening is fed.
- Fig. 1 the compressed air cushion 3 is shown, which is in the base frame 2 and which is fixed to the plunger 1 with the compressed air hose 5.
- the plunger 1 is over guided several short guide rails 8 in the base frame 2.
- the stops 4 serve to limit the fold stroke and can be used to adjust the fold be tuned or adjusted.
- the force is about one at the scope of the Ram 1 arranged bend 10 initiated.
- Fig. 1.2 is an embodiment according to the prior art for explanation Hydraulic cylinder 6 shown. Here are to guide the plunger 11 in Base frame 12 long guide strips 8 used. To limit the Different folding positions are also pins 7 and Tie rod 9 applied.
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Falzen von Blechen, insbesondere Karosserieblechen im Automobilbau, wobei in einem Grundgestell ein Stößel mit aufliegendem Falzbett die zu falzenden Bleche gegen die feststehenden Falzwerkzeuge presst.The invention relates to a device for folding sheet metal, in particular body panels in the automotive industry, in one Base frame a ram with a folding bed on top of the sheets to be folded presses against the stationary folding tools.
Bei einer herkömmlichen Falzvorrichtung nach dem Stand der Technik werden Falzhub und die benötigte Falzkraft durch einen zentral unter dem Stößel liegenden Hydraulikzylinder aufgebracht. Der Stößel befördert mit dem aufliegenden Falzbett die zu falzenden Bleche gegen die feststehenden Vorbzw. Fertigfalzwerkzeuge, die an verschieblichen oder schwenkbaren Einrichtungen befestigt sind (vgl. US 51 50 508 A und DE 43 30 683 C2). Durch die zentrale Krafteinleitung in der Mitte des Stößels muss der Stößel insgesamt sehr stabil ausgeführt sein, um die Falzkraft von der Mitte insbesondere an den Randbereich des Stößels weiterzuleiten.In a conventional folding device according to the prior art Folding stroke and the required folding force through a centrally under the ram lying hydraulic cylinder applied. The plunger moves with the Folded bed lying on the sheets to be folded against the fixed preliminary or Finished folding tools that can be moved or swiveled Devices are attached (see US 51 50 508 A and DE 43 30 683 C2). By The central force application in the middle of the tappet must be the tappet overall be made very stable to the folding force from the center in particular to the Forward the edge area of the plunger.
Der Erfindung liegt daher die Aufgabe zugrunde, den Antrieb für den Stößel in der Weise zu verbessern, dass die Konstruktion vereinfacht wird.The invention is therefore based on the task of driving the plunger in to improve the way that the construction is simplified.
Die Lösung dieser Aufgabe ist im Patentanspruch 1 wiedergegeben. Die Unteransprüche 2 bis 7 enthalten sinnvolle Ausführungen dazu.The solution to this problem is given in claim 1. The Subclaims 2 to 7 contain useful explanations.
Durch den erfindungsgemäßen Vorschlag wird als Stößelantrieb ein Druckluftkissen eingesetzt, um den Arbeitshub und die Kraft zum Falzen der Bleche pneumatisch aufbringen zu können. Das Druckluftkissen ist zwischen Grundgestell und Stößel angeordnet. Es kann insbesondere in dem Grundgestell liegen und mindestens die gesamte Grundfläche des Stößels einnehmen. The proposal according to the invention is used as a tappet drive Air cushions are used to increase the working stroke and the force to fold the To be able to apply sheets pneumatically. The air cushion is between Base frame and ram arranged. It can in particular in the Base frame and at least the entire base of the ram take in.
Durch die Verwendung des Druckluftkissens ist vorteilhafterweise die Kraft über eine am Umfang des Stößels angeordnete Abkantung eingeleitet, sodass dieser in seiner äußeren Form und in den Abmessungen stark vereinfacht ist. Im Gegensatz zum zentral angreifenden Hydraulikzylinder benötigt der Stößel nur kleine Versteifungsrippen, da die Falzkraft nicht mehr von der Mitte zum Randbereich des Stößels eingeleitet werden muss. Des weiteren kann das Druckluftkissen in einem standardisierten Unterbau des Grundgestells der Falzvorrichtung untergebracht werden. Das Druckluftkissen ist nicht nur durch die Einbettung in das Grundgestell, sondern auch über den Stößel fixiert und wird über mehrere am Umfang verteilte Führungsleisten in Bewegungsrichtung des Stößels im Grundgestell geführt. Zur Begrenzung des Falzhubes können am Umfang des Stößels nach außen überstehende gegebenenfalls zur Einstellung der Falzung einstellbare Anschläge in entsprechenden Aussparungen des Grundgestells angeordnet sein. Zum Anschluss eines Druckluftschlauches an das Druckluftkissen kann außerdem in der Grundplatte des Stößels eine entsprechende Durchtrittsöffnung angeordnet sein, sodass der Druckluftschlauch nicht durch das Grundgestell, sondern von oben durch die vorzugsweise zentral angeordnete Durchtrittsöffnung zugeführt wird.By using the compressed air cushion, the force is advantageously above a chamfer arranged on the circumference of the ram is initiated, so that this is greatly simplified in its outer shape and dimensions. In contrast to the centrally acting hydraulic cylinder, the ram needs only small stiffening ribs, since the folding force is no longer from the center to the Edge area of the plunger must be initiated. Furthermore, it can Compressed air cushion in a standardized substructure of the base frame of the Folding device can be accommodated. The air cushion is not only through the embedding in the base frame, but also fixed via the plunger and over several circumferential guide rails in the direction of movement of the ram in the base frame. To limit the folding stroke can on the circumference of the plunger projecting outwards if necessary Adjustment of the fold adjustable stops in appropriate Recesses of the base frame can be arranged. To connect one Compressed air hose to the compressed air cushion can also be in the base plate a corresponding passage opening of the plunger, so that the compressed air hose not through the base frame, but from above the preferably centrally arranged passage opening is fed.
Die Erfindung wird anhand der beigefügten Figuren 1.1 und 1.2 beispielsweise näher erläutert. Es zeigen:
- Fig. 1.1
- ein
Druckluftkissen 3 mit Stößel 1 undGrundgestell 2 nach dem erfindungsgemäßen Vorschlag - Fig. 1.2
- einen
Hydraulikzylinder 6 mitStößel 11 imGrundgestell 12 in herkömmlicher Ausführung nach dem Stand der Technik.
- Fig. 1.1
- a
compressed air cushion 3 with tappet 1 andbase frame 2 according to the proposal of the invention - Fig. 1.2
- a
hydraulic cylinder 6 withplunger 11 in thebase frame 12 in a conventional design according to the prior art.
In Fig. 1 ist das Druckluftkissen 3 dargestellt, das im Grundgestell 2 liegt und
das mit dem Druckluftschlauch 5 am Stößel 1 fixiert ist. Der Stößel 1 wird über
mehrere kurze Führungsleisten 8 im Grundgestell 2 geführt. Die Anschläge 4
dienen zur Begrenzung des Falzhubes und können zur Einstellung der Falzung
abgestimmt bzw. eingestellt werden. Die Kraft wird über eine am Umfang des
Stößels 1 angeordnete Abkantung 10 eingeleitet.In Fig. 1, the
In Fig. 1.2 ist zur Erläuterung eine Ausführung nach dem Stand der Technik mit
Hydraulikzylinder 6 dargestellt. Hier werden zur Führung des Stößels 11 im
Grundgestell 12 lange Führungsleisten 8 eingesetzt. Zur Begrenzung der
verschiedenen Falzpositionen werden darüber hinaus Abstecker 7 und
Zuganker 9 angewandt. In Fig. 1.2 is an embodiment according to the prior art for explanation
- 11
- StößelPestle
- 22nd
- GrundgestellBase frame
- 33rd
- DruckluftkissenCompressed air cushion
- 44th
- Anschlagattack
- 55
- DruckluftschlauchCompressed air hose
- 66
- HydraulikzylinderHydraulic cylinder
- 77
- AbsteckerStake
- 88th
- FührungsleistenGuide rails
- 99
- ZugankerTie rod
- 1010th
- AbkantungFolding
- 1111
- StößelPestle
- 1212th
- GrundgestellBase frame
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19747291A DE19747291C1 (en) | 1997-10-25 | 1997-10-25 | Folder for motor vehicle body panels |
DE19747291 | 1997-10-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0911093A1 true EP0911093A1 (en) | 1999-04-28 |
EP0911093B1 EP0911093B1 (en) | 2001-11-14 |
Family
ID=7846685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98118123A Expired - Lifetime EP0911093B1 (en) | 1997-10-25 | 1998-09-24 | Device for hemming sheet metal, especially bodywork in automobile construction |
Country Status (6)
Country | Link |
---|---|
US (1) | US6029493A (en) |
EP (1) | EP0911093B1 (en) |
AT (1) | ATE208668T1 (en) |
BR (1) | BR9804735A (en) |
DE (2) | DE19747291C1 (en) |
ES (1) | ES2166582T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6487888B1 (en) | 2000-10-05 | 2002-12-03 | Valiant Corporation | Hemming machine |
US6508099B1 (en) | 2000-10-05 | 2003-01-21 | Valiant Corporation | Hemming machine |
US6578401B2 (en) | 2001-09-28 | 2003-06-17 | Valiant Corporation | Hemming machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001012355A1 (en) * | 1999-08-13 | 2001-02-22 | Thyssenkrupp Technologies Ag | Method for actuating a tappet in a lifting or clamping device, especially for folding sheet metals in car manufacture |
EP1702692B1 (en) * | 1999-11-25 | 2008-03-05 | Ford-Werke GmbH | Hemming device |
FI110491B (en) * | 2000-09-26 | 2003-02-14 | Rondeco Oy | Disc Handling Equipment |
US6959474B2 (en) | 2002-08-29 | 2005-11-01 | Campian Jonathon R | Nest and hold station for the joining of sheet materials |
EP2689865B1 (en) | 2012-07-27 | 2016-09-14 | FFT Produktionssysteme GmbH & Co. KG | Hemming press |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150508A (en) * | 1991-06-28 | 1992-09-29 | E. R. St. Denis & Sons, Limited | Hemming machine and method |
DE4330683A1 (en) * | 1993-09-10 | 1995-03-16 | Audi Ag | Seaming apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1405799A (en) * | 1920-10-04 | 1922-02-07 | Paul Stephen | Adjustable guide for hammers |
US2294676A (en) * | 1940-03-25 | 1942-09-01 | Hydraulic Dev Corp Inc | Metal stretching press |
DE1155414B (en) * | 1959-09-15 | 1963-10-10 | British Fed Welder And Machine | Folding device |
FR1322218A (en) * | 1962-02-12 | 1963-03-29 | Fr D Etudes Et De Realisation | Machine for assembling sheet metal parts by crimping, in particular stampings with a polygonal contour |
US3190215A (en) * | 1964-05-11 | 1965-06-22 | Reginald C Howard | Fluid actuated press |
FR1445675A (en) * | 1965-06-02 | 1966-07-15 | Chausson Usines Sa | Machine for crimping the edges of sheet metal parts to be assembled |
CH677620A5 (en) * | 1988-11-11 | 1991-06-14 | Matec Holding | |
US5454261A (en) * | 1993-06-17 | 1995-10-03 | Campian; Jon R. | Hemming machine and method of operation |
-
1997
- 1997-10-25 DE DE19747291A patent/DE19747291C1/en not_active Expired - Fee Related
-
1998
- 1998-09-24 AT AT98118123T patent/ATE208668T1/en not_active IP Right Cessation
- 1998-09-24 ES ES98118123T patent/ES2166582T3/en not_active Expired - Lifetime
- 1998-09-24 EP EP98118123A patent/EP0911093B1/en not_active Expired - Lifetime
- 1998-09-24 DE DE59802132T patent/DE59802132D1/en not_active Expired - Fee Related
- 1998-10-23 BR BR9804735-3A patent/BR9804735A/en active Search and Examination
- 1998-10-23 US US09/178,563 patent/US6029493A/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150508A (en) * | 1991-06-28 | 1992-09-29 | E. R. St. Denis & Sons, Limited | Hemming machine and method |
DE4330683A1 (en) * | 1993-09-10 | 1995-03-16 | Audi Ag | Seaming apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6487888B1 (en) | 2000-10-05 | 2002-12-03 | Valiant Corporation | Hemming machine |
US6508099B1 (en) | 2000-10-05 | 2003-01-21 | Valiant Corporation | Hemming machine |
US6578401B2 (en) | 2001-09-28 | 2003-06-17 | Valiant Corporation | Hemming machine |
Also Published As
Publication number | Publication date |
---|---|
BR9804735A (en) | 1999-11-09 |
US6029493A (en) | 2000-02-29 |
ES2166582T3 (en) | 2002-04-16 |
DE59802132D1 (en) | 2001-12-20 |
ATE208668T1 (en) | 2001-11-15 |
EP0911093B1 (en) | 2001-11-14 |
DE19747291C1 (en) | 1999-01-21 |
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