EP3269466B1 - Bending device for bending a wire for a lattice truss welding machine - Google Patents
Bending device for bending a wire for a lattice truss welding machine Download PDFInfo
- Publication number
- EP3269466B1 EP3269466B1 EP17175798.2A EP17175798A EP3269466B1 EP 3269466 B1 EP3269466 B1 EP 3269466B1 EP 17175798 A EP17175798 A EP 17175798A EP 3269466 B1 EP3269466 B1 EP 3269466B1
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- European Patent Office
- Prior art keywords
- bending
- wire
- punch
- welding machine
- clamping unit
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- 238000005452 bending Methods 0.000 title claims description 260
- 238000003466 welding Methods 0.000 title claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 29
- 230000007423 decrease Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Classifications
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- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
- B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
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- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
- B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
Definitions
- the invention relates to a bending device for bending a wire for a lattice girder welding machine and a lattice girder welding machine with such a bending device.
- a known bending device for bending a wire for a lattice girder welding machine is in the EP 2 789 406 A1 shown.
- a known bending device comprises a feed unit for moving the wire along a feed direction, two clamping devices spaced apart from one another in the feed direction for holding the wire, wherein a clamping device is designed to be displaceable parallel to the feed direction, and a bending punch with a bending surface for bending the wire.
- the bending punch is present between the two clamping devices and is arranged such that it is present acting on the wire transversely to the feed direction.
- the bending punch is also rotatably mounted on the lattice girder welding machine with its end opposite the bending surface.
- a movement of the bending punch and a movement of the feed unit of the known bending device are in particular mechanically independent of one another.
- the invention is based on the problem of an alternative To provide bending device for bending a wire for a lattice girder welding machine.
- the invention is based on a bending device for bending a wire for a lattice girder welding machine, the bending device comprising two clamping units for clamping the wire, a first clamping unit being present in a fixed position in the direction of a bending path and a second clamping unit being displaceable parallel to the bending path, the Bending path in a feed direction of the wire parallel to a longitudinal axis of the bent wire can be seen, the bending device comprising a bending punch, the bending device having a bending surface over which the wire runs during the bending process, the bending punch being present between the first and the second clamping unit is and wherein the bending punch is pivotally attached to a machine frame of the lattice girder welding machine at a second end.
- a lattice girder welding machine includes, among other things, a machine frame on which the bending device can be arranged.
- the bending surface is advantageously designed as a fixed bending roller in particular.
- the bending surface is curved, for example.
- the bending punch consists, for example, of a hydraulic bending cylinder in particular with a bending piston, e.g. the bending surface is present on the bending piston.
- a displacement unit which is movable by means of a swivel arm with a first end of the bending punch connected is.
- the essence of the invention lies in the fact that the bending surface, over which the wire runs, is arranged on the swivel arm offset from a longitudinal axis of the bending punch.
- the displacement unit is mechanically connected to the bending punch.
- the second clamping unit is advantageously mechanically connected to the bending die via the displacement unit. This means e.g. a movement of the displacement unit and a movement of the bending die are synchronized via the swivel arm.
- the first end of the bending punch is advantageously rotatably connected to the pivot arm on a pivot bearing of the pivot arm.
- a movement of the displacement unit is coupled with a movement of the second clamping unit.
- the displacement unit is advantageously movable parallel to the feed direction, in particular the displacement unit is coupled to the second clamping unit.
- a displacement speed of the displacement unit can be the same or different than a displacement speed of the second clamping unit. In particular in the coupled state of the displacement unit with the second clamping unit, the displacement speeds are advantageously not the same. If the displacement unit is coupled to the second clamping unit, the direct distance of the pivot bearing of the swivel arm to a clamp of the second clamping unit preferably does not change during a bending process.
- a clamp of the first and second clamping unit is provided to clamp the wire and thus advantageously hold it there.
- the swivel arm can be designed as a profile and / or as a carrier, for example as a T-profile carrier.
- the is advantageous Swivel arm is dimensionally stable, bar-shaped and / or rod-like.
- the swivel arm can also be formed from a plurality of carrier elements which are present, in particular, next to one another.
- an elastic spring back of the wire in particular at the bending point, can be provided after the bending process.
- the bending surface is present on the bending punch, in particular the bending surface can be fixed at the first end of the bending punch, e.g. screwed and / or welded.
- a further advantageous modification of the invention is that the bending punch can be pivotably arranged on the machine frame and the bending punch can be positioned in such a way that a predetermined distance of the bending surface from a bending point of the wire can be set before the start of the bending process.
- a movement of the second clamping unit in the feed direction starts asynchronously, with a time offset, or with different accelerations for a bending movement of the punch, for example due to different signal lengths or due to different drives.
- the feed device can be designed to be driven by an electric motor and the bending punch can be designed, for example, by pneumatics. Both the feed unit and the bending punch can be driven by an electrical, hydraulic and / or pneumatic drive.
- a vertical distance between the bending surface and the bending point is preferably adjustable.
- a vertical distance means a distance between the bending surface and the bending point perpendicular to the direction of advance in a plane of movement that spans the second clamping unit and the bending punch.
- the bending punch can be pivotably arranged and positioned on the machine frame such that a distance between the bending surface and a bending point of the wire does not exceed a predetermined value before the start of a bending process.
- the predefined value can be formed as a function of an angular position of the longitudinal axis of the bending punch in relation to the feed direction, in particular of the angular position before the start of the bending process.
- the predetermined value of the distance from the bending surface to the bending point before the start of the bending process is, for example, in a range between 0.1 mm to 2 mm, 0.2 mm to 1.5 mm and / or 0.5 mm to 1 mm.
- the specified distance value is e.g. 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, in particular 0.5 mm.
- the bending punch can preferably be arranged on the machine frame so as to be displaceable with a second end in a direction parallel to the direction of advance of the wire and / or parallel to the longitudinal axis of the bent wire.
- the bending device comprises an adjustment device for linear adjustment of the bending die parallel to the direction of advance of the wire and / or parallel to the longitudinal axis of the bent wire.
- the bending punch can be attached to the machine frame via the adjusting device.
- the adjustment device is designed, for example, as a slide which can be moved and / or positioned on the machine frame parallel to the feed direction.
- the displacement unit can be arranged on the machine frame and / or the second clamping unit so as to be adjustable in a direction perpendicular to the bending distance or to the feed direction of the wire.
- the displacement unit is preferably designed to be displaceable in a direction perpendicular to the feed direction.
- a distance between the second clamping unit and the displacement unit can be adjusted in particular in a direction perpendicular to the direction of advance of the wire in the plane of movement of the second clamping unit and the bending punch.
- the bending surface, over which the wire runs is arranged offset to a longitudinal axis B of the bending die in the direction of the first clamping unit at the first end of the bending die.
- the bending surface in particular at the end of the bending process, can assume a position above the first clamping unit, seen perpendicular to the feed direction, in a bending process.
- the bending surface is advantageously provided on the bending punch in such a way that the bending surface assumes a position during the bending process, in particular at the end of the bending process, which is further from a clamp of the second Clamping unit is spaced as the clamp of the first clamping unit.
- a distance between the bending surface and the clamp of the first clamping device is preferably smaller than a distance between the pivot bearing of the swivel arm and the clamp of the first clamping device.
- the swivel arm is arranged with its first end pivotably on the displacement unit and with its second end, which is formed opposite the first end, is pivotably arranged at the first end of the bending die.
- the swivel arm is connected to the displacement unit in a rotatable or pivotable manner on a first pivot bearing and to the bending punch on a second pivot bearing.
- a distance between a first pivot axis of the pivot arm on the displacement unit and a second pivot axis of the pivot arm at the first end of the bending die is constant.
- Pivot axes and / or axes of rotation of the two rotary bearings are advantageously spaced apart from one another.
- the bending surface is advantageously attached to the swivel arm, e.g. screwed and / or welded.
- the bending surface forms an extension of the swivel arm, in particular in the direction of the first clamping unit.
- the swivel arm be L-shaped.
- the first pivot axis of the pivot arm is formed at the first end of a long branch of the L-shaped pivot arm and the second pivot axis at an intersection of the long branch of the L-shaped pivot arm with a short one Branch of the L-shaped swivel arm.
- the interface is present opposite the first end of the long branch.
- the bending punch is rotatably and / or pivotably arranged on the second pivot axis.
- a longitudinal axis of the long and a longitudinal axis of the short branch of the L-shaped swivel arm are advantageously at an angle not equal to 0 ° to one another.
- the bending surface is advantageously present at the end of the short branch of the L-shaped swivel arm opposite the interface.
- the swivel arm is bent and / or angled.
- the swivel arm is designed such that, in an end position of the bending process, the swivel arm engages behind the first clamping unit on the side facing away from the second clamping unit.
- the bending surface for example on the swivel arm, engages behind the first clamping unit, advantageously the clamp of the first clamping unit.
- a bending device 1 for bending a bending wire 11, 12 comprises a first clamping unit 2, a second clamping unit 3, a bending punch 4 and a displacement unit 5 with a swivel arm 6 ( Figure 1 ).
- the bending device 1 can be arranged on a frame 7 of a lattice girder welding machine 8 ( Figure 6 ).
- the first clamping unit 2 is located on the lattice girder welding machine 8 positionally available.
- the second clamping unit 3 and / or the displacement unit 5 can be displaced parallel to a feed direction V of the bending wire 11, 12 on the lattice girder welding machine 8, for example.
- the displacement unit 5 can also be provided on the frame 7 of the lattice girder welding machine 8 such that a distance from the second clamping unit 3 perpendicular to the feed direction V can be set.
- the second clamping unit 3 and / or the displacement unit 5 on rail elements 13, 14 are arranged displaceably on the frame 7.
- the bending wire 11, 12 is moved or pushed in the feed direction V by the lattice girder welding machine in the bending machine during the processing of the bending wire 11, 12.
- a bending section advantageously extends along the feed direction V.
- the bending section extends between a clamp 25 of the first clamping unit 2 and a further clamp 26 of the second clamping unit 3.
- the bending section is thus along the feed direction V between the two clamping units 2, 3 and in particular does not correspond to a distance covered by a bending point 23, 24 of the bending wire 11, 12 during a bending process in a direction perpendicular to the feed direction V of the bending wire 11, 12.
- the area along the feed direction V in which the bending wire 11, 12 is bent can thus be seen as the bending path.
- This area decreases or decreases during the bending process from a bending start position of the second clamping unit 3 to a bending end position of the second clamping unit 3.
- the clamps 25 and 26 of the two clamping units 2, 3 clamp the bending wire 11, 12 and hold the bending wire 11 during the bending process , 12 each at a clamping point of the terminals 25, 26 on the clamping units 2, 3.
- the clamp 26 of the clamping unit 3 is shown transparently for better understanding.
- the displacement unit 5 and the second clamping unit 3 are, in particular, mechanically independent of one another available on frame 7.
- the second clamping unit 3 can be displaced on the frame 7 and that the displacement unit 5 can be positioned on the second clamping unit 3 so that it can be positioned relative to the second clamping unit 3.
- the displacement unit 5 is additionally guided on the frame 7 via a rail element 14, for example.
- the bending die 4 comprises two hydraulic bending cylinders 18, 19, for example.
- each bending cylinder 18, 19 there is a bending piston 20, 21, in particular in a linearly displaceable manner.
- the bending cylinders 18, 19 are also spaced apart from one another in such a way that the second clamping unit 3 can be displaced between the bending cylinders 18, 19 in one bending operation.
- the bending punch 4 is pivotably arranged, in particular positionable, with a second end 15 on the frame 7 of the lattice girder welding machine 8.
- the bending punch 4 is arranged on the lattice girder welding machine 8 such that it can be brought into a functional position on the frame 7 with a second end 15, in particular in a direction parallel to the feed direction V of the bending wire 11, 12, before the bending process.
- the functional position is matched, for example, to a geometry of the bent wire 11, 12. This increases the variety of geometries of the bent wire 11, 12.
- a distance A, in particular perpendicular to the feed direction, of a bending surface 16, 17 of the bending device 1 to the bending point 23, 24 of the bending wire 11, 12 can advantageously be set in a bending start position of the bending device 1 ( Figures 4 and 5 ).
- the bending die 4 is preferably present with its second end 15 in a fixed position on the frame 7 of the lattice girder welding machine 8 during the bending process.
- the punch 4 performs a pivoting movement in the direction of the first clamping unit 2 about a pivot axis during the bending process from, the pivot axis being present at the second end 15 of the bending punch 4.
- the bending die 4 is connected at its first end 22 to the ends of the bending pistons 20, 21 so as to be pivotable with the pivot arm 6 via a pivot axis 10.
- a main direction of force of the bending punch 4 on the bending wire 11, 12 perpendicular to the feed direction V of the bending wire 11, 12 is advantageously predetermined.
- the swivel arm 6 can be swiveled, in particular rotatably, to the displacement unit 5 via a further swivel axis 9.
- the pivot axes 9 and 10 are spaced apart from one another.
- the swivel arm 6 is formed from a steel beam.
- the bending surface 16, 17 of the swivel arm 6 advantageously describes a circular path during the bending process, with a circular path radius which corresponds to the direct distance between the pivot axis 9 and the bending surface 16 or 17 corresponds to.
- a distance of the displacement unit 5 relative to the clamp 25 of the first clamp unit 2 changes during the bending process. It is conceivable, for example, that the distance of the displacement unit 5 relative to the clamp 25 of the first clamp unit 2 changes from a starting position ( Figure 3 ) first reduced and in particular after reaching an end position of the bending piston 20, 21 of the punch 4 ( Figures 1 and 2nd ) enlarged again, or vice versa.
- Figures 3 to 5 show the bending device 1 in the starting position at the beginning of the bending process.
- the bending punch 4 is in the retracted state.
- This means the Bending pistons 20, 21 are in particular completely retracted in the bending cylinders 18, 19.
- a longitudinal axis of the swivel arm 6 is oriented approximately parallel to the feed direction V of the bending wire 11, 12 in the starting position.
- the bending surface 16, 17 are present at a distance from the bending points 23, 24 in the starting position.
- the bending surface 16, 17 engages the bending point 23, 24 on the bending wire 11, 12 during the bending process, so that the bending point 23, 24 of the bending wire 11, 12 is prevented from slipping along the bending surface 16, 17 during the bending process.
- the bending wire 11, 12 in Figure 6 is shown schematically for better understanding of the viewer, continuously curved.
- the bending wire 11, 12 is only bent by the bending device 1 and is thus unbent and straight in an opposite direction to the feed direction V in front of the bending surfaces 16, 17. This would make the bending wire, in particular the course of the bending wire in the lattice girder welding machine 8 for a viewer of the lattice girder welding machine 8 in FIG Figure 6 perspective view shown is not clearly recognizable in reality.
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Description
Die Erfindung betrifft eine Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine, sowie eine Gitterträgerschweißmaschine mit einer solchen Biegevorrichtung.The invention relates to a bending device for bending a wire for a lattice girder welding machine and a lattice girder welding machine with such a bending device.
Eine bekannte Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine ist in der
Eine Bewegung des Biegestempels und eine Bewegung der Vorschubeinheit der bekannten Biegevorrichtung laufen insbesondere mechanisch unabhängig voneinander ab.A movement of the bending punch and a movement of the feed unit of the known bending device are in particular mechanically independent of one another.
Der Erfindung liegt die Aufgabe zu Grunde, eine alternative Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine bereitzustellen.The invention is based on the problem of an alternative To provide bending device for bending a wire for a lattice girder welding machine.
Diese Aufgabe wird durch den Anspruch 1 gelöst.This object is solved by claim 1.
In den abhängigen Ansprüchen sind vorteilhafte und zweckmäßige Weiterbildungen der Erfindung angegeben.Advantageous and expedient developments of the invention are specified in the dependent claims.
Die Erfindung geht von einer Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine aus, wobei die Biegevorrichtung zwei Klemmeinheiten zum Klemmen des Drahts umfasst, wobei eine erste Klemmeinheit positionsfest in Richtung einer Biegestrecke vorhanden ist und eine zweite Klemmeinheit parallel zur Biegestrecke verschiebbar vorhanden ist, wobei die Biegestrecke in einer Vorschubrichtung des Drahts parallel zu einer Längsachse des umgebogenen Drahts zu sehen ist, wobei die Biegevorrichtung einen Biegestempel umfasst, wobei die Biegevorrichtung eine Biegefläche aufweist, über welche der Draht beim Biegevorgang verläuft, wobei der Biegestempel zwischen der ersten und der zweiten Klemmeinheit vorhanden ist und wobei der Biegestempel an einem zweiten Ende an einem Maschinenrahmen der Gitterträgerschweißmaschine schwenkbar befestigbar ist.The invention is based on a bending device for bending a wire for a lattice girder welding machine, the bending device comprising two clamping units for clamping the wire, a first clamping unit being present in a fixed position in the direction of a bending path and a second clamping unit being displaceable parallel to the bending path, the Bending path in a feed direction of the wire parallel to a longitudinal axis of the bent wire can be seen, the bending device comprising a bending punch, the bending device having a bending surface over which the wire runs during the bending process, the bending punch being present between the first and the second clamping unit is and wherein the bending punch is pivotally attached to a machine frame of the lattice girder welding machine at a second end.
Eine Gitterträgerschweißmaschine umfasst unter anderem einen Maschinenrahmen, an welchem die Biegevorrichtung anordenbar ist.A lattice girder welding machine includes, among other things, a machine frame on which the bending device can be arranged.
Die Biegefläche ist vorteilhafterweise als insbesondere feststehende Biegerolle ausgebildet. Die Biegefläche ist beispielsweise gekrümmt ausgestaltet. Der Biegestempel besteht beispielsweise aus einem insbesondere hydraulischen Biegezylinder mit einem Biegekolben, wobei z.B. am Biegekolben die Biegefläche vorhanden ist.The bending surface is advantageously designed as a fixed bending roller in particular. The bending surface is curved, for example. The bending punch consists, for example, of a hydraulic bending cylinder in particular with a bending piston, e.g. the bending surface is present on the bending piston.
Es ist eine Verschiebeeinheit vorhanden, welche mittels eines Schwenkarms beweglich mit einem ersten Ende des Biegestempels verbunden ist. Der Kern der Erfindung liegt nun darin, dass die Biegefläche, über welche der Draht verläuft, zu einer Längsachse des Biegestempels versetzt am Schwenkarm angeordnet ist.There is a displacement unit which is movable by means of a swivel arm with a first end of the bending punch connected is. The essence of the invention lies in the fact that the bending surface, over which the wire runs, is arranged on the swivel arm offset from a longitudinal axis of the bending punch.
Hierdurch ist die Verschiebeeinheit mechanisch mit dem Biegestempel verbunden. Vorteilhafterweise ist die zweite Klemmeinheit über die Verschiebeeinheit mechanisch mit dem Biegestempel verbunden. Dadurch sind z.B. eine Bewegung der Verschiebeeinheit und eine Bewegung des Biegestempels über den Schwenkarm synchronisiert.As a result, the displacement unit is mechanically connected to the bending punch. The second clamping unit is advantageously mechanically connected to the bending die via the displacement unit. This means e.g. a movement of the displacement unit and a movement of the bending die are synchronized via the swivel arm.
Der Biegestempel ist mit dem ersten Ende vorteilhafterweise an einem Drehlager des Schwenkarms drehbar mit dem Schwenkarm verbunden.The first end of the bending punch is advantageously rotatably connected to the pivot arm on a pivot bearing of the pivot arm.
Von Vorteil ist es, wenn eine Bewegung der Verschiebeeinheit mit einer Bewegung der zweiten Klemmeinheit gekoppelt ist. Die Verschiebeeinheit ist vorteilhafterweise parallel zur Vorschubrichtung bewegbar vorhanden, insbesondere ist die Verschiebeeinheit mit der zweiten Klemmeinheit gekoppelt. Eine Verschiebegeschwindigkeit der Verschiebeinheit kann gleich oder ungleich eine Verschiebegeschwindigkeit der zweiten Klemmeinheit sein. Insbesondere im gekoppelten Zustand der Verschiebeeinheit mit der zweiten Klemmeinheit sind die Verschiebegeschwindigkeiten vorteilhafterweise ungleich. Ist die Verschiebeeinheit mit der zweiten Klemmeinheit gekoppelt, bevorzugterweise ändert sich während eines Biegevorgangs der direkte Abstand des Drehlagers des Schwenkarms zu einer Klemme der zweiten Klemmeinheit nicht.It is advantageous if a movement of the displacement unit is coupled with a movement of the second clamping unit. The displacement unit is advantageously movable parallel to the feed direction, in particular the displacement unit is coupled to the second clamping unit. A displacement speed of the displacement unit can be the same or different than a displacement speed of the second clamping unit. In particular in the coupled state of the displacement unit with the second clamping unit, the displacement speeds are advantageously not the same. If the displacement unit is coupled to the second clamping unit, the direct distance of the pivot bearing of the swivel arm to a clamp of the second clamping unit preferably does not change during a bending process.
Eine Klemme der ersten und zweiten Klemmeinheit ist dazu vorgesehen, den Draht zu klemmen und damit vorteilhafterweise festzuhalten.A clamp of the first and second clamping unit is provided to clamp the wire and thus advantageously hold it there.
Der Schwenkarm kann als Profil und/oder als Träger, z.B. als T-Profil-Träger ausgebildet sein. Vorteilhafterweise ist der Schwenkarm formstabil, balkenförmig und/oder stabartig vorhanden. Der Schwenkarm kann auch aus mehreren insbesondere nebeneinander vorhandenen Trägerelementen gebildet sein.The swivel arm can be designed as a profile and / or as a carrier, for example as a T-profile carrier. The is advantageous Swivel arm is dimensionally stable, bar-shaped and / or rod-like. The swivel arm can also be formed from a plurality of carrier elements which are present, in particular, next to one another.
Hierdurch kann ein elastisches Zurückfedern des Drahts, insbesondere an der Biegestelle, nach dem Biegevorgang vorgehalten werden.As a result, an elastic spring back of the wire, in particular at the bending point, can be provided after the bending process.
Denkbar ist, dass die Biegefläche am Biegestempel vorhanden ist, insbesondere kann die Biegefläche am ersten Ende des Biegestempels fixiert sein, z.B. angeschraubt und/oder angeschweißt.It is conceivable that the bending surface is present on the bending punch, in particular the bending surface can be fixed at the first end of the bending punch, e.g. screwed and / or welded.
Eine weitere vorteilhafte Modifikation der Erfindung ist, dass der Biegestempel derart schwenkbar am Maschinenrahmen anordenbar ist und der Biegestempel derart positionierbar ist, dass vor dem Start des Biegevorgangs ein vorgegebener Abstand der Biegefläche zu einer Biegestelle des Drahts einstellbar ist.A further advantageous modification of the invention is that the bending punch can be pivotably arranged on the machine frame and the bending punch can be positioned in such a way that a predetermined distance of the bending surface from a bending point of the wire can be set before the start of the bending process.
Hierdurch ist sichergestellt, dass der Biegestempel ausschließlich an der Biegestelle des Drahts angreift und nicht etwa z.B. am Anfang des Biegevorgangs bis zur Biegestelle am Draht entlang rutscht.This ensures that the bending punch only acts on the bending point of the wire and not e.g. slips along the wire at the beginning of the bending process up to the bending point.
Unvorteilhafterweise startet bei bekannten Biegevorrichtungen eine Bewegung der zweiten Klemmeinheit in Vorschubrichtung asynchron, mit einem zeitlichen Versatz, oder mit unterschiedlichen Beschleunigungen zu einer Biegebewegung des Biegestempels, z.B. aufgrund unterschiedlicher Signallängen oder aufgrund unterschiedlicher Antriebe. So kann die Vorschubeinrichtung z.B. durch einen Elektromotor antreibbar ausgestaltet sein und der Biegestempel z.B. durch eine Pneumatik. Sowohl die Vorschubeinheit, als auch der Biegestempel kann von einem elektrischen, hydraulischen und/oder pneumatischen Antrieb angetrieben sein. Durch die Positionierung des Biegestempels vor dem Start des Biegevorgangs in der vorteilhaften Ausgestaltung der Erfindung ist dieser zeitliche und/oder räumliche Versatz kompensierbar.Disadvantageously, in known bending devices, a movement of the second clamping unit in the feed direction starts asynchronously, with a time offset, or with different accelerations for a bending movement of the punch, for example due to different signal lengths or due to different drives. For example, the feed device can be designed to be driven by an electric motor and the bending punch can be designed, for example, by pneumatics. Both the feed unit and the bending punch can be driven by an electrical, hydraulic and / or pneumatic drive. By positioning the punch before the start of the This temporal and / or spatial offset can be compensated for in the bending process in the advantageous embodiment of the invention.
Bevorzugterweise ist ein senkrechter Abstand der Biegefläche zur Biegestelle einstellbar. Wobei unter einem senkrechten Abstand ein Abstand der Biegefläche zur Biegestelle senkrecht zur Vorschubrichtung in einer Bewegungsebene, welche die zweite Klemmeinheit und der Biegestempel aufspannen, gemeint ist.A vertical distance between the bending surface and the bending point is preferably adjustable. A vertical distance means a distance between the bending surface and the bending point perpendicular to the direction of advance in a plane of movement that spans the second clamping unit and the bending punch.
In einer weiteren vorteilhaften Ausführung der Erfindung ist der Biegestempel derart schwenkbar am Maschinenrahmen anordenbar und positionierbar, sodass vor dem Start eines Biegevorgangs ein Abstand der Biegefläche zu einer Biegestelle des Drahts einen vorgegebenen Wert nicht überschreitet.In a further advantageous embodiment of the invention, the bending punch can be pivotably arranged and positioned on the machine frame such that a distance between the bending surface and a bending point of the wire does not exceed a predetermined value before the start of a bending process.
Hierdurch ist z.B. sichergestellt, dass die Biegefläche des Biegestempels nicht an der Biegefläche angreift, bevor der Draht in Vorschubrichtung, bspw. durch die zweite Klemmeinheit, bewegt wird.This is e.g. ensures that the bending surface of the bending punch does not engage the bending surface before the wire is moved in the feed direction, for example by the second clamping unit.
Der vorgegebene Wert kann abhängig von einer Winkelstellung der Längsachse des Biegestempels zur Vorschubrichtung ausgebildet sein, insbesondere von der Winkelstellung vor dem Start des Biegevorgangs.The predefined value can be formed as a function of an angular position of the longitudinal axis of the bending punch in relation to the feed direction, in particular of the angular position before the start of the bending process.
Der vorgegebene Wert des Abstands der Biegefläche zur Biegestelle vor dem Start des Biegevorgangs liegt beispielsweise in einem Bereich zwischen 0,1 mm bis 2 mm, 0,2 mm bis 1,5 mm und/oder 0,5 mm bis 1 mm. Der vorgegebene Abstandswert beträgt z.B. 0,1 mm, 0,2 mm, 0,3 mm, 0,4 mm, 0,6 mm, 0,7 mm, 0,8 mm, 0,9 mm oder 1 mm, insbesondere 0,5 mm.The predetermined value of the distance from the bending surface to the bending point before the start of the bending process is, for example, in a range between 0.1 mm to 2 mm, 0.2 mm to 1.5 mm and / or 0.5 mm to 1 mm. The specified distance value is e.g. 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, in particular 0.5 mm.
Bevorzugterweise ist der Biegestempel mit einem zweiten Ende in einer Richtung parallel zur Vorschubrichtung des Drahts und/oder parallel zur Längsachse des umgebogenen Drahts verschiebbar am Maschinenrahmen anordenbar. Beispielsweise umfasst die Biegevorrichtung eine Verstelleinrichtung zum linearen Verstellen des Biegestempels parallel zur Vorschubrichtung des Drahts und/oder parallel zur Längsachse des umgebogenen Drahts. Insbesondere ist der Biegestempel über die Verstelleinrichtung am Maschinenrahmen befestigbar. Die Verstelleinrichtung ist beispielsweise als Schlitten ausgebildet, welcher parallel zur Vorschubrichtung verfahrbar und/oder positionierbar am Maschinenrahmen anordenbar ist.The bending punch can preferably be arranged on the machine frame so as to be displaceable with a second end in a direction parallel to the direction of advance of the wire and / or parallel to the longitudinal axis of the bent wire. For example the bending device comprises an adjustment device for linear adjustment of the bending die parallel to the direction of advance of the wire and / or parallel to the longitudinal axis of the bent wire. In particular, the bending punch can be attached to the machine frame via the adjusting device. The adjustment device is designed, for example, as a slide which can be moved and / or positioned on the machine frame parallel to the feed direction.
Als vorteilhaft erweist sich auch, dass die Verschiebeeinheit in einer Richtung senkrecht zur Biegestrecke oder zur Vorschubrichtung des Drahts verstellbar am Maschinenrahmen und/oder der zweiten Klemmeinheit anordenbar ist.It has also proven to be advantageous that the displacement unit can be arranged on the machine frame and / or the second clamping unit so as to be adjustable in a direction perpendicular to the bending distance or to the feed direction of the wire.
Bevorzugterweise ist die Verschiebeeinheit in einer Richtung senkrecht zur Vorschubrichtung versetzbar ausgebildet. Vorteilhafterweise ist ein Abstand zwischen der zweiten Klemmeinheit und der Verschiebeeinheit insbesondere in einer Richtung senkrecht zur Vorschubrichtung des Drahts in der Bewegungsebene der zweiten Klemmeinheit und des Biegestempels einstellbar.The displacement unit is preferably designed to be displaceable in a direction perpendicular to the feed direction. Advantageously, a distance between the second clamping unit and the displacement unit can be adjusted in particular in a direction perpendicular to the direction of advance of the wire in the plane of movement of the second clamping unit and the bending punch.
Weiterhin erweist sich als vorteilhaft, dass die Biegefläche, über welche der Draht verläuft, zu einer Längsachse B des Biegestempels in Richtung der erster Klemmeinheit versetzt am ersten Ende des Biegestempels angeordnet ist.Furthermore, it proves to be advantageous that the bending surface, over which the wire runs, is arranged offset to a longitudinal axis B of the bending die in the direction of the first clamping unit at the first end of the bending die.
Hierdurch kann in einem Biegevorgang die Biegefläche, insbesondere am Ende des Biegevorgangs, eine Position über der ersten Klemmeinheit, senkrecht zur Vorschubrichtung gesehen, einnehmen. Vorteilhafterweise ist die Biegefläche derart am Biegestempel vorhanden, dass die Biegefläche während des Biegevorgangs, insbesondere am Ende des Biegevorgangs eine Position einnimmt, welche weiter von einer Klemme der zweiten Klemmeinheit beabstandet ist, als die Klemme der ersten Klemmeinheit.As a result, the bending surface, in particular at the end of the bending process, can assume a position above the first clamping unit, seen perpendicular to the feed direction, in a bending process. The bending surface is advantageously provided on the bending punch in such a way that the bending surface assumes a position during the bending process, in particular at the end of the bending process, which is further from a clamp of the second Clamping unit is spaced as the clamp of the first clamping unit.
Bevorzugterweise ist in Vorschubrichtung gesehen ein Abstand der Biegefläche zur Klemme der ersten Klemmeinrichtung kleiner, als ein Abstand des Drehlagers des Schwenkarms zur Klemme der ersten Klemmeinrichtung.When viewed in the feed direction, a distance between the bending surface and the clamp of the first clamping device is preferably smaller than a distance between the pivot bearing of the swivel arm and the clamp of the first clamping device.
Auch erweist sich als vorteilhaft, dass der Schwenkarm mit seinem ersten Ende schwenkbar an der Verschiebeeinheit und mit seinem, dem ersten Ende gegenüberliegend ausgebildetem, zweitem Ende schwenkbar am ersten Ende des Biegestempels angeordnet ist.It has also proven to be advantageous that the swivel arm is arranged with its first end pivotably on the displacement unit and with its second end, which is formed opposite the first end, is pivotably arranged at the first end of the bending die.
Beispielsweise ist der Schwenkarm an einem ersten Drehlager dreh- bzw. schwenkbar mit der Verschiebeeinheit verbunden und an einem zweiten Drehlager mit dem Biegestempel.For example, the swivel arm is connected to the displacement unit in a rotatable or pivotable manner on a first pivot bearing and to the bending punch on a second pivot bearing.
Weiterhin ist vorteilhaft, dass ein Abstand einer ersten Schwenkachse des Schwenkarms an der Verschiebeeinheit und einer zweiten Schwenkachse des Schwenkarms am ersten Ende des Biegestempels konstant ist. Vorteilhafterweise sind Schwenkachsen und/oder Rotationsachsen der beiden Drehlager zueinander fest beabstandet.It is also advantageous that a distance between a first pivot axis of the pivot arm on the displacement unit and a second pivot axis of the pivot arm at the first end of the bending die is constant. Pivot axes and / or axes of rotation of the two rotary bearings are advantageously spaced apart from one another.
Vorteilhafterweise ist die Biegefläche am Schwenkarm befestigt, z.B. angeschraubt und/oder angeschweißt. Beispielsweise bildet die Biegefläche eine Verlängerung des Schwenkarms insbesondere in Richtung der ersten Klemmeinheit.The bending surface is advantageously attached to the swivel arm, e.g. screwed and / or welded. For example, the bending surface forms an extension of the swivel arm, in particular in the direction of the first clamping unit.
Weiter wird vorgeschlagen, dass der Schwenkarm L-förmig ausgebildet ist.It is also proposed that the swivel arm be L-shaped.
Beispielsweise ist die erste Schwenkachse des Schwenkarms am ersten Ende eines langen Zweigs des L-förmigen Schwenkarms ausgebildet und die zweite Schwenkachse an einer Schnittstelle des langen Zweigs des L-förmigen Schwenkarms mit einem kurzen Zweig des L-förmigen Schwenkarms. Die Schnittstelle ist dem ersten Ende des langen Zweigs gegenüberliegend vorhanden. Wobei an der zweiten Schwenkachse der Biegestempel drehbar und/oder schwenkbar angeordnet ist. Eine Längsachse des langen und eine Längsachse des kurzen Zweigs des L-förmigen Schwenkarms stehen vorteilhafterweise in einem Winkel ungleich 0° zueinander. An dem, der Schnittstelle gegenüberliegenden Ende des kurzen Zweigs des L-förmigen Schwenkarms ist vorteilhafterweise die Biegefläche vorhanden. Beispielsweise ist der Schwenkarm abgeknickt und/oder abgewinkelt ausgebildet. Z.B ist der Schwenkarm derart ausgebildet, dass in einer Endposition des Biegevorgangs der Schwenkarm die erste Klemmeinheit auf der, der zweiten Klemmeinheit abgewandten Seite hintergreift. Insbesondere, dass die z.B. am Schwenkarm vorhandene Biegefläche die erste Klemmeinheit, vorteilhafterweise die Klemme der ersten Klemmeinheit hintergreift.For example, the first pivot axis of the pivot arm is formed at the first end of a long branch of the L-shaped pivot arm and the second pivot axis at an intersection of the long branch of the L-shaped pivot arm with a short one Branch of the L-shaped swivel arm. The interface is present opposite the first end of the long branch. The bending punch is rotatably and / or pivotably arranged on the second pivot axis. A longitudinal axis of the long and a longitudinal axis of the short branch of the L-shaped swivel arm are advantageously at an angle not equal to 0 ° to one another. The bending surface is advantageously present at the end of the short branch of the L-shaped swivel arm opposite the interface. For example, the swivel arm is bent and / or angled. For example, the swivel arm is designed such that, in an end position of the bending process, the swivel arm engages behind the first clamping unit on the side facing away from the second clamping unit. In particular, that the bending surface, for example on the swivel arm, engages behind the first clamping unit, advantageously the clamp of the first clamping unit.
Ein Ausführungsbeispiel wird anhand der nachstehenden schematischen Zeichnungen unter Angabe weiterer Einzelheiten und Vorteile näher erläutert.An exemplary embodiment is explained in more detail with reference to the following schematic drawings, stating further details and advantages.
Es zeigen:
- Figur 1
- eine erfindungsgemäße Biegevorrichtung mit angeordnetem Draht in einer Biegeendstellung, in einer perspektivischen Ansicht von schräg seitlich vorne auf eine Vorderseite,
Figur 2- einen Ausschnitt der Biegevorrichtung nach
Figur 1 in einer perspektivischen Ansicht von schräg seitlich vorne auf eine Rückseite, Figur 3- einen Ausschnitt der Biegevorrichtung in einer Biegestartstellung in einer perspektivischen Ansicht von schräg seitlich vorne auf die Vorderseite,
Figuren 4 und 5- eine perspektivische Detailansicht von schräg seitlich vorne auf eine Biegefläche der Biegevorrichtung nach
Figur 3 in der Biegestartstellung und Figur 6- eine Gitterträgerschweißmaschine mit der Biegevorrichtung in einer perspektivischen Ansicht von schräg seitlich hinten auf eine Vorderseite.
- Figure 1
- 1 a bending device according to the invention with an arranged wire in a bending end position, in a perspective view obliquely from the side towards the front,
- Figure 2
- a section of the bending device after
Figure 1 in a perspective view obliquely from the front to the back, - Figure 3
- a section of the bending device in a bending start position in a perspective view obliquely from the side to the front,
- Figures 4 and 5
- a detailed perspective view obliquely laterally from the front onto a bending surface of the bending device
Figure 3 in the bending start position and - Figure 6
- a lattice girder welding machine with the bending device in a perspective view obliquely from the side rear to a front.
Eine erfindungsgemäße Biegevorrichtung 1 zum Biegen eines Biegedrahts 11, 12 umfasst eine erste Klemmeinheit 2, eine zweite Klemmeinheit 3, einen Biegestempel 4 und eine Verschiebeeinheit 5 mit einem Schwenkarm 6 (
Die Biegevorrichtung 1 ist an einen Rahmen 7 einer Gitterträgerschweißmaschine 8 anordenbar (
Zwischen der ersten und der zweiten Klemmeinheit 2, 3 erstreckt sich vorteilhafterweise eine Biegestrecke entlang der Vorschubrichtung V. Beispielsweise erstreckt sich die Biegestrecke zwischen einer Klemme 25 der ersten Klemmeinheit 2 und einer weiteren Klemme 26 der zweiten Klemmeinheit 3. Die Biegestrecke ist somit entlang der Vorschubrichtung V zwischen den beiden Klemmeinheiten 2, 3 zu sehen und entspricht insbesondere nicht einer Strecke die eine Biegestelle 23, 24 des Biegedrahts 11, 12 während eines Biegevorgangs in einer Richtung senkrecht zur Vorschubrichtung V des Biegedrahts 11, 12 zurücklegt. Als Biegestrecke ist damit der Bereich entlang der Vorschubrichtung V zu sehen, in welchem der Biegedraht 11, 12 gebogen wird. Dieser Bereich verringert bzw. verkleinert sich während des Biegevorgangs von einer Biegestartposition der zweiten Klemmeinheit 3 in eine Biegeendposition der zweiten Klemmeinheit 3. Die Klemmen 25 und 26 der beiden Klemmeinheiten 2, 3 klemmen während des Biegevorgangs den Biegedraht 11, 12 und halten den Biegedraht 11, 12 jeweils an einer Klemmstelle der Klemmen 25, 26 an den Klemmeinheiten 2, 3 fest. In den Figuren ist die Klemme 26 der Klemmeinheit 3 zum besseren Verständnis transparent dargestellt.Between the first and the
Vorteilhafterweise sind die Verschiebeeinheit 5 und die zweite Klemmeinheit 3 insbesondere mechanisch unabhängig voneinander versetzbar am Rahmen 7 vorhanden. Denkbar ist aber auch, dass die zweite Klemmeinheit 3 versetzbar am Rahmen 7 vorhanden ist und die Verschiebeeinheit 5 relativ zur zweiten Klemmeinheit 3 positionierbar an der zweiten Klemmeinheit 3 ausgebildet ist. In diesem Fall ist es vorstellbar, dass die Verschiebeeinheit 5 über ein Schienenelement 14 am Rahmen 7 bspw. zusätzlich geführt ist.Advantageously, the
Der Biegestempel 4 umfasst zwei bspw. hydraulische Biegezylinder 18, 19. In jeweils einem Biegezylinder 18, 19 ist ein Biegekolben 20, 21 insbesondere linear verschiebbar vorhanden. Die Biegezylinder 18, 19 sind außerdem derart zueinander beabstandet vorhanden, dass in einem Biegevorgang die zweite Klemmeinheit 3 zwischen die Biegezylinder 18, 19 verschoben werden kann.The bending die 4 comprises two
Der Biegestempel 4 ist mit einem zweiten Ende 15 am Rahmen 7 der Gitterträgerschweißmaschine 8 schwenkbar, insbesondere positionierbar angeordnet. Vorteilhafterweise ist der Biegestempel 4 derart an der Gitterträgerschweißmaschine 8 angeordnet, sodass er vor einem Biegevorgang mit seinem zweiten Ende 15 insbesondere in einer Richtung parallel zur Vorschubrichtung V des Biegedrahts 11, 12 am Rahmen 7 in eine Funktionsposition bringbar ist. Die Funktionsposition ist beispielsweise auf eine Geometrie des gebogenen Biegedrahtes 11, 12 abgestimmt. Hierdurch ist eine Geometrievielfalt des gebogenen Biegedrahts 11, 12 erhöht. Vorteilhafterweise ist durch die Positionierbarkeit des zweiten Endes 15 des Biegestempels 4 ein, insbesondere zur Vorschubrichtung senkrechter Abstand A einer Biegefläche 16, 17 der Biegevorrichtung 1 zu der Biegestelle 23, 24 des Biegedrahts 11, 12 in einer Biegestartposition der Biegevorrichtung 1 einstellbar (
Der Biegestempel 4 ist an seinem ersten Ende 22 mit Enden der Biegekolben 20, 21 über eine Schwenkachse 10 schwenkbeweglich mit dem Schwenkarm 6 verbunden. Durch die Lagerung des Biegestempels 4 mit dem zweiten Ende 15 am Rahmen 7 und dem ersten Ende 22 an der Schwenkachse 10 ist vorteilhafterweise eine Hauptkraftrichtung des Biegestempels 4 auf den Biegedraht 11, 12 senkrecht zur Vorschubrichtung V des Biegedrahts 11, 12 vorgegeben.The bending die 4 is connected at its
Der Schwenkarm 6 ist über eine weitere Schwenkachse 9 schwenkbar, insbesondere drehbar mit der Verschiebeeinheit 5 verbunden. Die Schwenkachsen 9 und 10 sind voneinander fest beabstandet. Vorteilhafterweise ist der Schwenkarm 6 aus einem Stahlträger ausgebildet.The
Bewegt sich die Verschiebeeinheit 5 während des Biegevorgangs relativ zu der Klemme 25 der ersten Klemmeinheit 2 nicht, beschreibt die Biegefläche 16, 17 des Schwenkarms 6 während des Biegevorgangs vorteilhafterweise eine Kreisbahn, mit einem Kreisbahnradius, welcher dem direkten Abstand der Schwenkachse 9 zur Biegefläche 16 bzw. 17 entspricht.If the
Vorstellbar ist allerdings auch, dass sich ein Abstand der Verschiebeeinheit 5 relativ zur Klemme 25 der ersten Klemmeinheit 2 während des Biegevorgangs verändert. Denkbar ist bspw., dass der Abstand der Verschiebeeinheit 5 relativ zur Klemme 25 der ersten Klemmeinheit 2 sich während des Biegevorgangs von einer Startposition (
Der Biegedraht 11, 12 in
- 11
- BiegevorrichtungBending device
- 22nd
- KlemmeinheitClamping unit
- 33rd
- KlemmeinheitClamping unit
- 44th
- BiegestempelBending punch
- 55
- VerschiebeeinheitDisplacement unit
- 66
- SchwenkarmSwivel arm
- 77
- Rahmenframe
- 88th
- GitterträgerschweißmaschineLattice girder welding machine
- 99
- SchwenkachseSwivel axis
- 1010th
- SchwenkachseSwivel axis
- 1111
- BiegedrahtBending wire
- 1212th
- BiegedrahtBending wire
- 1313
- SchienenelementRail element
- 1414
- SchienenelementRail element
- 1515
- EndeThe End
- 1616
- BiegeflächeBending surface
- 1717th
- BiegeflächeBending surface
- 1818th
- BiegezylinderBending cylinder
- 1919th
- BiegezylinderBending cylinder
- 2020th
- Kolbenpiston
- 2121
- BiegekolbenBending piston
- 2222
- EndeThe End
- 2323
- BiegestelleBending point
- 2424th
- BiegestelleBending point
- 2525th
- KlemmeClamp
- 2626
- KlemmeClamp
Claims (10)
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8), wherein the device (1) comprises two clamping units (2, 3) for clamping the wire (11, 12), wherein a first clamping unit (2) is provided fixed in position in the direction of a bending section and a second clamping unit (3) is provided to be displaceable parallel to the bending section, wherein the bending section in an advancing direction of the wire (11, 12) is parallel to a longitudinal axis of the bent wire (11, 12), wherein the bending device (1) comprises a bending punch (4), wherein the bending device (1) has a bending surface (16, 17) over which the wire (11, 12) runs during the bending process, wherein the bending punch (4) is provided between the first (2) and the second clamping unit (3), wherein the bending punch (4) can be secured pivotably at a second end (15) to a machine frame (7) of the lattice truss welding machine (8), wherein a displacement unit (5) is provided which is connected movably by means of a pivot arm (6) to a first end (22) of the bending punch (4), characterised in that the bending surface (16, 17), over which the wire (11, 12) runs, is provided on the pivot arm (6) offset relative to a longitudinal axis of the bending punch (4).
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that the bending punch (4) can be arranged pivotably on the machine frame (7) and the bending punch (4) can be positioned such that before the start of the bending process a predefined distance of the bending surface (16, 17) to a bending point (23, 24) of the wire (11, 12) can be adjusted.
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that the bending punch (4) can be arranged and positioned pivotably on the machine frame (7) such that before the start of a bending process a distance of the bending surface (16, 17) from a bending point (23, 24) of the wire (11, 12) does not exceed a predefined value.
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that a movement of the displacement unit (5) is coupled to a movement of the second clamping unit (3).
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that the displacement unit (5) can be arranged adjustably on the machine frame (7) in a direction perpendicular to the bending section or to the advancing direction of the wire (11, 12).
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that the bending surface (16, 17), over which the wire (11, 12) runs, is arranged offset to a longitudinal axis of the bending punch (4) in the direction of the first clamping unit (2) at the first end (22) of the bending punch (4).
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that the pivot arm (6) is arranged with its first end pivotably on the displacement unit (5) and with its second end opposite the first end is arranged pivotably on the first end (22) of the bending punch (4).
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that a distance between a first pivot axis (9) of the pivot arm (6) on the displacement unit (5) and a second pivot axis (10) of the pivot arm (6) at the first end (22) of the bending punch (4) is constant.
- Bending device (1) for bending a wire (11, 12) for a lattice truss welding machine (8) according to any of the preceding claims, characterised in that the pivot arm (6) is designed to be L-shaped.
- Bending machine (8) with a bending device (1) according to any of the preceding claims.
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DE102016113036.2A DE102016113036A1 (en) | 2016-07-15 | 2016-07-15 | Bending device for bending a wire for a lattice girder welding machine |
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EP3269466B1 true EP3269466B1 (en) | 2020-04-22 |
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Citations (7)
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EP0023898A1 (en) | 1979-08-03 | 1981-02-11 | EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. | Machine for the automatic production of welded lattice girders |
DE4442929A1 (en) | 1993-12-27 | 1995-06-29 | Filzmoser Maschinenbau Ges M B | Bending machine to bend diagonal rods for grid bearer |
WO2013000551A1 (en) | 2011-06-30 | 2013-01-03 | Progress Maschinen & Automation Ag | Method and device for continuously producing a mesh-type support |
DE102013112482A1 (en) | 2013-01-16 | 2014-07-17 | Franz Filzmoser | Bending device for bending strap wire e.g. headband wire of lattice girder, has bending punch portion which is mounted between clamping units, and is mounted slidably parallel to bending path |
EP2789406A1 (en) | 2013-04-12 | 2014-10-15 | Progress Maschinen & Automation AG | Bending machine |
EP3141314A1 (en) | 2015-09-09 | 2017-03-15 | EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. | Method and device for producing a continuous lattice girder |
DE102016113036A1 (en) | 2016-07-15 | 2018-01-18 | Mbk Maschinenbau Gmbh | Bending device for bending a wire for a lattice girder welding machine |
-
2016
- 2016-07-15 DE DE102016113036.2A patent/DE102016113036A1/en active Pending
-
2017
- 2017-06-13 EP EP17175798.2A patent/EP3269466B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0023898A1 (en) | 1979-08-03 | 1981-02-11 | EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. | Machine for the automatic production of welded lattice girders |
DE4442929A1 (en) | 1993-12-27 | 1995-06-29 | Filzmoser Maschinenbau Ges M B | Bending machine to bend diagonal rods for grid bearer |
WO2013000551A1 (en) | 2011-06-30 | 2013-01-03 | Progress Maschinen & Automation Ag | Method and device for continuously producing a mesh-type support |
DE102013112482A1 (en) | 2013-01-16 | 2014-07-17 | Franz Filzmoser | Bending device for bending strap wire e.g. headband wire of lattice girder, has bending punch portion which is mounted between clamping units, and is mounted slidably parallel to bending path |
EP2789406A1 (en) | 2013-04-12 | 2014-10-15 | Progress Maschinen & Automation AG | Bending machine |
EP3141314A1 (en) | 2015-09-09 | 2017-03-15 | EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. | Method and device for producing a continuous lattice girder |
DE102016113036A1 (en) | 2016-07-15 | 2018-01-18 | Mbk Maschinenbau Gmbh | Bending device for bending a wire for a lattice girder welding machine |
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