EP0398280A2 - Appareil de pliage universel - Google Patents

Appareil de pliage universel Download PDF

Info

Publication number
EP0398280A2
EP0398280A2 EP90109222A EP90109222A EP0398280A2 EP 0398280 A2 EP0398280 A2 EP 0398280A2 EP 90109222 A EP90109222 A EP 90109222A EP 90109222 A EP90109222 A EP 90109222A EP 0398280 A2 EP0398280 A2 EP 0398280A2
Authority
EP
European Patent Office
Prior art keywords
profile
carrier
bending
base plate
bending 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
Application number
EP90109222A
Other languages
German (de)
English (en)
Other versions
EP0398280B1 (fr
EP0398280A3 (fr
Inventor
Walter E. Späth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0398280A2 publication Critical patent/EP0398280A2/fr
Publication of EP0398280A3 publication Critical patent/EP0398280A3/fr
Application granted granted Critical
Publication of EP0398280B1 publication Critical patent/EP0398280B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies

Definitions

  • the invention relates to a universal bending tool consisting of a base plate with a mold carrier arranged on the base plate on bracket supports in accordance with the contour and shape plane of the profile to be bent, the profile to be bent being bent in the manner of a bending template around a profile carrier projecting from the mold carrier by means of form rollers becomes.
  • Bending tools of this type are used for the bending technique of metal profiles, a profile to be bent being bent on a bending tool around a bending template.
  • the bending tool itself essentially consists of a base plate, to which triangular bracket supports are welded, which carry a mold carrier that is perpendicular to the base plate, and furthermore the bending template itself is now applied to the mold carrier in the manner of a profile carrier by welding or other fastening means .
  • the present invention is therefore based on the object of developing a bending tool of the type mentioned in such a way that it is suitable for universal bending work can be used without the need to laboriously change the entire tool when using a new bending template.
  • bracket supports are arranged in an adjustable and adjustable manner and, furthermore, tensioning elements are provided on the bracket supports, which tension the mold support and at the same time carry the profile support and are adjustable in height as desired.
  • a universally usable bending tool is created in that several individual, parallel to each other and mutually adjustable bracket supports are arranged on a base plate, wherein each bracket support clamping elements are arranged which carry the bending template.
  • the profile to be bent is bent over the bending template.
  • the bending process is carried out in the form of stretch bending by using a straight profile bar under tensile stress and high contact pressure, e.g. is generated via bending rollers, is drawn over the bending template.
  • stretch bending there is also an unroll stretch bending and the like.
  • Such bending processes are described in detail in earlier U.S. patents by the same inventor. Reference is made to the revelation there. This disclosure is intended to be fully encompassed by the present invention.
  • clamping elements are now arranged on the mold carriers, which define support surfaces, the clamping elements being arranged opposite one another on the mold carriers and defining an intermediate space between them, into which the bending template is clamped.
  • the clamping elements on the top and bottom then support themselves with their support surfaces on the top and bottom sides of the bending template and thus fix the bending template in all three room levels.
  • the clamping elements are easily adjustable on the Shape carriers are held, and it is therefore possible to first set up the bending template so that it corresponds exactly to the required bending of the profile. Once the bending template has been set up, the tensioning elements are braced against one another in order to fix the bending template.
  • the clamping takes place in such a way that the clamping elements are first rotated, the support surface on the bending template being eccentric to the pivot point of the clamping elements on the mold carrier, so that when these clamping elements are rotated on the bending template, an additional contact force is generated on the bending template.
  • the tensioning elements are then braced with the bending template by means of a screw, which passes through a longitudinal bore in the upper tensioning element, crosses an aligned bore in the bending template and engages in an associated, thus aligned bore of the lower tensioning element.
  • the two clamping elements lying one below the other are thus connected to each other with the bending template by means of a common screw which penetrates all three parts.
  • the tensioning elements are designed as sheet-like layers which are layered in a packet-like manner and can be moved individually with respect to one another.
  • clamping elements are generally referred to as mold carriers.
  • the mold carriers are adjustably attached to a bracket carrier.
  • bracket supports and their attachment to the base plate first determine the contour shape of the profile to be bent.
  • a shape plane for the profile to be bent is thus determined by the mold carrier.
  • the mold carrier can consist of one or more sheet-like layers which are layered individually and which can be displaced relative to one another, initially manually can be contoured by shifting in the plane of the base plate.
  • this is omitted and the mold carriers can be contoured manually.
  • mold carriers in turn carry a plastic carrier which has the task of engaging in the hollow profile of the profile to be bent and receiving this profile.
  • the plastic carrier serves as a profile holder and holds the profile to be bent.
  • the profile carrier preferably consists of a plastic material, so that this plastic material can be easily molded.
  • clamping elements are present on the bracket supports, which clamping elements clamp the mold supports and at the same time carry the profile supports and are height-adjustable as desired.
  • bracket supports are adjustably arranged on a base plate, that the bracket supports are connected to clamping elements, which clamp clamping elements form supports and at the same time carry the profile support.
  • the required bending shape which can also include three-dimensional or torsional bending, is shown in the drawing, and the bending template described here is first manually set to the required bending shape.
  • a sample profile is then bent and compared to the required bending shape, and due to these deviations one can see where corrections are necessary.
  • This mold carrier therefore only has the task of creating a base surface for the profile carrier resting thereon, which is then arranged to be displaceable in the Z plane on the mold carrier.
  • the form carrier therefore only has the task of producing the required bending contour, whereby - as stated at the beginning - the edge contour is produced by the profile cylinder.
  • Bracket 2 are adjustable in the plane of the base plate 1 adjustable.
  • Each bracket support 2 carries two clamping elements arranged one above the other, which define an intermediate space between them.
  • Each clamping element 33 is slidably fastened by screws 34 in the region of a vertically aligned elongated hole 35 in the mold carrier 3.
  • the mold carrier 3 is adjustably fastened to the console carrier 2 in two mutually perpendicular spatial axes.
  • the tensioning elements each define support surfaces 40 and thus carry a bending template 36 which, in the exemplary embodiment shown (see FIG. 3), consists of two parts.
  • the bending template 36 here consists of a vertical template 37 and a horizontal template 38.
  • the two templates define a bending profile 39, via which a profile in the exact profile shape of the bending profile 39 is bent by means of bending rollers indicated in FIG.
  • the bending template 36 thus defines the position, rotation and inclination of the bending profile 39 to be bent, while the bending profile 39 itself defines the geometric dimensions of the profile to be bent.
  • the clamping elements 33 are still not tightly clamped with the bending template 36.
  • the bending template 36 can first be freely bent (using tools) so that it corresponds exactly to the required bending line. According to Figure 1, the bending template 36 is only temporarily held on the clamping elements 33.
  • the clamping elements are firmly connected to the bending template 36.
  • the clamping elements 33 are first rotated around the bearing points in the screws 34, so that the rounded support surfaces 40 wedge with the associated surfaces of the bending template 36. This is because the support surface 30 is eccentric to the bearing point in the screw 34 of the clamping element 33.
  • a screw 42 is used to connect the three parts (33 and 36).
  • the screw 42 engages through the mutually aligned longitudinal bores 44 in the opposing clamping elements 33 and additionally through a bore 43 in the bending template 36.
  • the bores 43, 44 are subsequently produced by simply drilling through the clamping elements aligned in FIG. 2, after which the screw 42 is then passed through and screwed. In this way, a firm and permanent connection of the tensioning elements to the bending template 36 takes place.
  • a further screw 41 is screwed into the bending template 36, each of which is connected to a clamping element 33.
  • Such screws 41 are arranged, for example, only in every 4th or 5th clamping element 33.
  • FIGS. 4 and 5 A further embodiment of a bending tool according to the invention is explained with reference to FIGS. 4 and 5.
  • bracket supports 2 are fastened to a base plate 1, with corresponding screws 7 engaging in threaded bores 8 in the base plate 1.
  • Elongated holes 9 are provided in the area of the bracket supports, so that the bracket supports 2 are arranged so that they can be moved and locked on the base plate.
  • Each bracket support 2 has a front plate 10, in which a plurality of receiving bores 11 are provided.
  • the screw bolt 12 of a fastening screw 13 passes through each receiving bore 11, and a nut connection 14 is arranged on the rear of the front plate 10.
  • mold carriers 3 which, as stated at the outset, define the bending shape.
  • the mold carriers 3 have bores 15 which are penetrated by the threaded bolts 12.
  • the threaded bolts carry clamping claws 16 which have fingers 17 pointing towards one another, the fingers 17 engaging in an associated groove 18 of the profiled support 4.
  • the profile carrier 4 is displaceable in the Z direction, because the clamping claws 16 have elongated holes 19 aligned in the Z direction.
  • the clamping claws 16 can thus be displaced in the area of the elongated holes 19, as a result of which the profile carrier 4 can thus be displaced in the Z axis.
  • the profile carrier 4 has an outer profile 20 which engages in the inner profile of the profile 21 to be bent.
  • the profile 21 to be bent is thus stabilized during the bending process.
  • Profile rollers 22, 23 rest on the outside on the profile 21 to be bent.
  • the bracket 2 are formed in two parts and consist of two parts, the front panels 10 are not fixed to the bracket, but, as shown in Figure 2, the front panels via appropriate screw connections 25 with the part 24 of Console bracket are adjustably connected.
  • An angular position of the profile carrier 4 in relation to the plane of the base plate can thus be set.
  • Figure 3 shows a modified embodiment where it can be seen that a profile cylinder 5 is arranged in the area of the corner, which in turn is adjustable.
  • the profile cylinder 5 is arranged on a support plate 27, which is connected to the base plate 1 with corresponding screw connections 28.
  • elongated holes are again arranged to ensure the adjustability of the profile cylinder 5 parallel to the plane of the base plate 1.
  • a section through the profile cylinder 5 can be seen in FIG. 4.
  • the profile cylinder 6 preferably consists of three parts, with a front piece 29, a profile support 30 and a chuck piece 31; all parts are connected to the carrier plate 27 by a clamping screw 32.
  • clamping screw 32 extends through an elongated hole 34 in the support plate 27 so that the entire structure, consisting of the parts 29, 30, 31, can also be adjusted parallel to the base plate.
  • the further screw 35 serves to fasten the profiled support formed from plastic to the outer circumference of the profiled support 4, while the screw connection 33 serves to fasten the shaped support 3 to the outer circumference of the profiled support.
  • the tool can still be arranged adjustably via hydraulic or pneumatic cylinders, ie the geometry in the areas of narrow and wide radii can be changed depending on the batch difference, so that a profile retains its nominal size despite (new) strength.
  • a spring-back component is thereby assigned to the tool; the sensitive adjustment takes into account different material properties of different batches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP90109222A 1989-05-16 1990-05-16 Appareil de pliage universel Expired - Lifetime EP0398280B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915855 1989-05-16
DE3915855A DE3915855A1 (de) 1989-05-16 1989-05-16 Universal-biegewerkzeug

Publications (3)

Publication Number Publication Date
EP0398280A2 true EP0398280A2 (fr) 1990-11-22
EP0398280A3 EP0398280A3 (fr) 1991-07-17
EP0398280B1 EP0398280B1 (fr) 1994-08-17

Family

ID=6380708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109222A Expired - Lifetime EP0398280B1 (fr) 1989-05-16 1990-05-16 Appareil de pliage universel

Country Status (4)

Country Link
US (1) US5099668A (fr)
EP (1) EP0398280B1 (fr)
AT (1) ATE110015T1 (fr)
DE (2) DE3915855A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131254A (en) * 1991-01-29 1992-07-21 Whitefab, Inc Apparatus for bending beams
WO2009083609A3 (fr) * 2008-01-03 2009-09-24 Edag Gmbh & Co. Kgaa Procédé de flexion d'une pièce

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE960695A1 (en) * 1996-10-01 1998-04-08 Rainforest R & D Limited An apparatus and a method for bending a component
US8096874B2 (en) 2007-09-27 2012-01-17 Igt Gaming system and method having progressive awards with meter increase events

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US337113A (en) * 1886-03-02 The ribs or frames of metallic ships
US504628A (en) * 1893-09-05 Machine for forming sheet metal
US2347575A (en) * 1942-04-22 1944-04-25 Harold E Neverdal Beam bending machine
US2533470A (en) * 1945-03-10 1950-12-12 Socrates H Kapelis Bending apparatus
US2714916A (en) * 1952-12-03 1955-08-09 Lee B Green Work gripping and flexing chuck mechanism
US3033266A (en) * 1958-07-11 1962-05-08 Russell E Leckner Stretch forming machine
US3181331A (en) * 1962-06-27 1965-05-04 Ite Circuit Breaker Ltd Article bending machine
DE1261871B (de) * 1965-02-05 1968-02-29 Brueninghaus Gmbh Stahlwerke Einrichtung zum Biegen und Haerten von Blattfedern
US3426569A (en) * 1967-01-31 1969-02-11 Cyril Bath Co Stretch forming machine and segmental adjustable die combination
JPS5220023B2 (fr) * 1973-06-25 1977-06-01
US4117707A (en) * 1977-09-23 1978-10-03 Westinghouse Electric Corp. Apparatus for shaping electrical coils for dynamoelectric machines
US4292834A (en) * 1980-03-28 1981-10-06 Norwalk Investment Club Irregular shape rod bending apparatus
US4450708A (en) * 1982-06-21 1984-05-29 King Industrial Products Co., Inc. Universal, adjustable bending form for shaping electrical windings
DE3307283A1 (de) * 1983-03-02 1984-09-06 W. Eckold AG, Trimmis Rohrbiegeanlage
US4548065A (en) * 1983-05-27 1985-10-22 Rockwell International Corporation Stretch-forming tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131254A (en) * 1991-01-29 1992-07-21 Whitefab, Inc Apparatus for bending beams
WO1992012812A1 (fr) * 1991-01-29 1992-08-06 Whitefab, Inc. Appareil de cintrage de poutres
EP0569536B1 (fr) * 1991-01-29 1998-04-22 Whitefab, Inc. Appareil de cintrage de poutres
WO2009083609A3 (fr) * 2008-01-03 2009-09-24 Edag Gmbh & Co. Kgaa Procédé de flexion d'une pièce

Also Published As

Publication number Publication date
DE3915855C2 (fr) 1992-09-03
EP0398280B1 (fr) 1994-08-17
DE3915855A1 (de) 1990-11-22
US5099668A (en) 1992-03-31
DE59006814D1 (de) 1994-09-22
ATE110015T1 (de) 1994-09-15
EP0398280A3 (fr) 1991-07-17

Similar Documents

Publication Publication Date Title
DE2822826C2 (de) Werkzeug zum Ausbrechen von in einer Stanzpresse vorgestanzten Nutzen
EP1331059B1 (fr) Dispositif pour le positionnement de réservoirs et procédés pour la fixation, le positionement et l'usinage de réservoirs, tonneaux, chaudrons, tubes et similaires utilisant un tel dispositif
EP0245635B1 (fr) Dispositif de fixation pour panneaux
DE9114722U1 (de) Rahmen zur Halterung von Zuschnitten für den Bezug von Formteilen
DE19516073B4 (de) Vorrichtung zum Stanzen von Nutzen aus Bögen
EP0330970A2 (fr) Dispositif pour le positionnement d'éléments de cadre courbes et pour le fraisage de rainures trapézoidales dans ces éléments de cadre
EP0398280A2 (fr) Appareil de pliage universel
DE19508864C1 (de) Maschine zum Ummanteln von länglichen Werkstücken
EP0076783B1 (fr) Machine à cintrer des tubes et des barres profilés
DE3802091C1 (fr)
EP1103348B1 (fr) Dispositif de soudage de cadres
DE4223094A1 (de) Vorrichtung zum Einbringen von paßgenauen Bohrungen in Nummernschilder für Kraftfahrzeuge
DE2613673A1 (de) Spannvorrichtung
DE2042509A1 (de) Vorrichtung zur Befestigung von oberen Teilstücken an Aufnahmeschienen
DE2918470C2 (de) Vorrichtung zum Spannen eines Möbelkorpus und zum Einbringen von Bohrungen für Schraubverbinder
DE2706499A1 (de) An einem mast anbringbare haltevorrichtung fuer geodaetische instrumente
DE2133594C3 (de) Vorrichtung zum Reparieren deformierter Gehäuse aus verformbaren Material
DE3525852A1 (de) Bohrlehre zum herstellen von verbindungsbohrungen zum verbinden eines ersten plattenfoermigen werkstuecks mit einem anderen werkstueck
DE9304524U1 (de) Werkstückspannvorrichtung
DE1292099B (de) Schraubstock
DE3511957C2 (fr)
EP3871761A1 (fr) Dispositif de mélange doté d'un dispositif de serrage pour un récipient à produit mélangé, en particulier pour un seau de peinture et/ou pour un seau de nettoyage
AT505991A2 (de) Schablone zum anreissen und übertragen von massen auf und zum einbringen von ausnehmungen in oberflächen von bauteilen
DE2416100A1 (de) Halteleiste fuer eine druckdecke zur ausfuehrung von farbdruckvorgaengen
CH698237B1 (de) Schablone zum Anreissen und Übertragen von Massen und zum Positionieren von Werkzeugen auf Oberflächen von Bauteilen.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910430

17Q First examination report despatched

Effective date: 19920824

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19940817

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940817

Ref country code: FR

Effective date: 19940817

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940817

Ref country code: NL

Effective date: 19940817

Ref country code: BE

Effective date: 19940817

Ref country code: GB

Effective date: 19940817

REF Corresponds to:

Ref document number: 110015

Country of ref document: AT

Date of ref document: 19940915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59006814

Country of ref document: DE

Date of ref document: 19940922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19941117

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19950531

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950531

Ref country code: LI

Effective date: 19950531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960201