EP0398280B1 - Universal-Biegewerkzeug - Google Patents

Universal-Biegewerkzeug Download PDF

Info

Publication number
EP0398280B1
EP0398280B1 EP90109222A EP90109222A EP0398280B1 EP 0398280 B1 EP0398280 B1 EP 0398280B1 EP 90109222 A EP90109222 A EP 90109222A EP 90109222 A EP90109222 A EP 90109222A EP 0398280 B1 EP0398280 B1 EP 0398280B1
Authority
EP
European Patent Office
Prior art keywords
bending
template
profile
carrier
tool according
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.)
Expired - Lifetime
Application number
EP90109222A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0398280A3 (de
EP0398280A2 (de
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/de
Publication of EP0398280A3 publication Critical patent/EP0398280A3/de
Application granted granted Critical
Publication of EP0398280B1 publication Critical patent/EP0398280B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 according to the preamble of claim 1.
  • Another bending tool is also known from US-A-38 89 508, but an adapted bending template must always be provided in exchange for different bending shapes.
  • Bending tools of this type are generally used for the bending technique of metal profiles, a profile to be bent being bent on a bending tool in a manner known per se around a bending template.
  • the bending tool itself initially consists of a base plate on which further triangular supports are provided. These supports have a shaped support which is generally perpendicular to the plane.
  • the connection between the front of the console bracket is made from the console bracket Mold carrier called, on which a bending template is arranged towards the front.
  • the profile is hooked onto the outer profile itself of the bending template and then rolled out with profile rollers in the manner described above.
  • the object of the present invention is to further develop the bending tool of the known type per se so that it can be provided for mostly universal bending work.
  • a universally applicable bending tool is created in that several individual, parallel to each other and mutually adjustable bracket supports are arranged, on which clamping elements are provided, which clamp the bending template against the mold carrier and perpendicular to a base plate Base plate are freely adjustable.
  • the bending tool according to the invention is adapted to the respective bending shape of different bending templates by simply adjusting and moving the bracket supports, mold supports and clamping elements, the bending template being a detachably connected part of the bending tool.
  • the profile to be bent is bent over the bending template.
  • the bending process can be carried out in the form of a stretch bending by a straight profile rod under tension and high contact pressure, the z. B. is generated via bending rollers, is drawn over the bending template.
  • this stretch bending there is also a roll-stretch bending and other bending processes, in which the bending tool according to the invention can be used.
  • 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 of the bending template and thus fix the bending template in all three room levels.
  • the elements are adjustable to the Shape carriers are held, and it is therefore possible to set up the bending template so that this corresponds exactly to the required bending of the further profile. If this initially provided set-up of the bending template has taken place, then the clamping elements are braced against one another in order to be able 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 an additional contact force is generated on the bending template when these clamping elements are rotated.
  • the clamping elements are then clamped to the bending template by means of a screw, which passes through a longitudinal bore in the upper clamping element, crosses an aligned bore in the bending template and engages in an associated, thus aligned bore of the lower clamping element.
  • the two opposing clamping elements are connected to each other with the intermediate bending template via a common screw that 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 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 laminated, individually displaceable, sheet-like sheets that are initially manually can be contoured by shifting in the plane of the base plate.
  • mold carriers in turn carry a bending template with 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 bending template 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 bending template and are adjustable in height as desired.
  • bracket supports are adjustably arranged on a base plate, that the bracket supports are connected to clamping elements, which clamp the clamping elements and support the bending template at the same time.
  • the required bending shape which can also include three-dimensional or torsional bending, is shown in the drawing, adjusted, and the bending template described here is manually adjusted to the required bending shape.
  • adjustable fastenings between the bracket supports and the base plate furthermore the adjustable fastenings between the bracket supports and the mold carriers and furthermore the adjustable fastenings between the bending template and the mold carriers.
  • This mold carrier therefore only has the task of creating a base surface for the bending template lying 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, by means of 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 not yet firmly clamped to the bending template 36.
  • the bending template 36 can first be freely bent (by means of 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 bending template 36 is clamped with the clamping elements.
  • 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.
  • FIGS. 4 and 5 Another 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 of 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.
  • the mold carriers 3 themselves also 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 bending template.
  • the bending template 4 can thus be displaced 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 region of the elongated holes 19, as a result of which the bending template 4 can be displaced in the Z axis.
  • the bending template 4 has an outer profile 20 which engages in the inner profile of the profile 21 to be bent.
  • the bracket supports 2 are constructed in two parts, the front plate 10 not being fixedly attached to the bracket support, but, as is indicated in FIG. 4, the front plate 10 being adjustable via the part 24 with the bracket support via crane connections 25 are connected.
  • the mold carrier 3 is arranged in each case in front of the front plate 10.
  • FIG. 6 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 again.
  • 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.
  • FIG. 7 A section through the profile cylinder 5 can be seen in FIG. 7.
  • the profile cylinder 5 here preferably consists of three parts, with a front piece 29 initially being present, a further profile support 30 and a chuck piece 31; all parts are connected to the carrier plate 27 by a clamping screw 32.
  • the further screw 35 is used to fasten the bending template made of plastic to the outer circumference of the mold carrier 3, while the screw connection 33 is used to fasten the mold carrier 3 on the outer circumference of the profile cylinder.
  • 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 diversity, so that a profile retains its nominal size despite (new) different 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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP90109222A 1989-05-16 1990-05-16 Universal-Biegewerkzeug Expired - Lifetime EP0398280B1 (de)

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 EP0398280A2 (de) 1990-11-22
EP0398280A3 EP0398280A3 (de) 1991-07-17
EP0398280B1 true EP0398280B1 (de) 1994-08-17

Family

ID=6380708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109222A Expired - Lifetime EP0398280B1 (de) 1989-05-16 1990-05-16 Universal-Biegewerkzeug

Country Status (4)

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

Families Citing this family (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
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
DE102008003067B4 (de) * 2008-01-03 2013-05-29 Edag Gmbh & Co. Kgaa Verfahren und Biegewerkzeug zum Biegen eines Werkstücks

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889508A (en) * 1973-06-25 1975-06-17 Sanyu Kosan Kabushiki Kaisha Pole bending apparatus
US4712406A (en) * 1983-03-02 1987-12-15 W. Eckold Ag Apparatus for bending tubular workpieces

Family Cites Families (13)

* 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
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
US4548065A (en) * 1983-05-27 1985-10-22 Rockwell International Corporation Stretch-forming tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889508A (en) * 1973-06-25 1975-06-17 Sanyu Kosan Kabushiki Kaisha Pole bending apparatus
US4712406A (en) * 1983-03-02 1987-12-15 W. Eckold Ag Apparatus for bending tubular workpieces

Also Published As

Publication number Publication date
EP0398280A3 (de) 1991-07-17
DE59006814D1 (de) 1994-09-22
ATE110015T1 (de) 1994-09-15
DE3915855C2 (enrdf_load_stackoverflow) 1992-09-03
US5099668A (en) 1992-03-31
EP0398280A2 (de) 1990-11-22
DE3915855A1 (de) 1990-11-22

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