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EP0399996B1 - Machine pour souder des treillis - Google Patents

Machine pour souder des treillis Download PDF

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Publication number
EP0399996B1
EP0399996B1 EP90890161A EP90890161A EP0399996B1 EP 0399996 B1 EP0399996 B1 EP 0399996B1 EP 90890161 A EP90890161 A EP 90890161A EP 90890161 A EP90890161 A EP 90890161A EP 0399996 B1 EP0399996 B1 EP 0399996B1
Authority
EP
European Patent Office
Prior art keywords
welding
wires
cross
clamping
lines
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
EP90890161A
Other languages
German (de)
English (en)
Other versions
EP0399996A1 (fr
Inventor
Gerhard Dipl.-Ing. Dr. Ritter
Klaus Dipl.-Ing. Ritter
Gerhard Dipl.-Ing. Schmidt
Walter Resch
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
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 EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0399996A1 publication Critical patent/EP0399996A1/fr
Application granted granted Critical
Publication of EP0399996B1 publication Critical patent/EP0399996B1/fr
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
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/08—Making wire network, i.e. wire nets with additional connecting elements or material at crossings
    • B21F27/10—Making wire network, i.e. wire nets with additional connecting elements or material at crossings with soldered or welded crossings

Definitions

  • the invention relates to a welding machine for producing grids from longitudinal and transverse wires which cross at right angles and are welded at the crossing points, with a device for feeding the longitudinal wires in a horizontal welding plane, two devices arranged at mutual spacing on the weft lines for simultaneous insertion of two transverse wires, one Welding electrode arrangement for carrying out a double-spot welding in the direction of the longitudinal wires, and two feeder arms for transferring the transverse wires from the weft lines to the weld lines, the feeder arms being arranged outside the outer longitudinal wires and by means of a common feeder arm carrier running perpendicular to the longitudinal wire direction on predetermined movement paths between the weft lines and the Welding lines can be moved back and forth.
  • the object of the invention is to provide a lattice welding machine of the type specified in the introduction, which makes it possible, using the advantages of double-spot welding, to produce lattices in a structurally simple and reliable manner, the cross-wire spacing of which corresponds to a predetermined smallest possible basic pitch or a multiple of this basic pitch of the transverse wires.
  • the welding machine according to the invention is characterized in that the feeder arms are designed to accommodate both transverse wires and are equipped with clamping devices for the transverse wires, that at least one of the feeder arms for jointly biasing both transverse wires can be moved relative to the other feeder arm in the transverse wire direction by means of a power drive with adjustable clamping force and that in the area of the weld lines pivotable positioning members for exact positioning of the cross wires according to the specified cross wire pitch are provided.
  • the unevenness in the cross wires caused by the straightening processes is advantageously compensated for and production-related asymmetries in the finished product, for example also due to thermal expansion during welding Avoid grid.
  • the positioning elements ensure that the exact cross wire spacing is maintained and also cause damping of the vibrations that occur in the cross wires when they are transferred.
  • grids with cross wire divisions each of which is a multiple of a predetermined smallest basic division, in particular also close-mesh grids, can be produced with great accuracy.
  • At least one of the feeder arms is arranged on the feeder arm carrier so as to be displaceable relative to the other feeder arm for positioning. This enables the machine to be set to different grid widths.
  • the movement paths of the feeder arms for the cross wires from the weft lines to the welding lines and the movement paths for the return movement are preferably each composed of a feed path and a tilting movement path.
  • the welding machine is characterized in that the clamping devices for the transverse wires have openable and closable lower clamping jaws, which interact with associated upper clamping jaws, the upper clamping jaws each being provided with a plurality of latching recesses for receiving the transverse wires, the mutual distance of the given corresponds to the smallest cross wire pitch.
  • the cross wires for the tensioning process and for transferring are held securely.
  • grids can be produced whose spacing of the cross wires is a multiple of the smallest possible basic pitch of the cross wire pitch.
  • a further development of the invention has the features that the upper jaw of the supply-side clamping device forms a cutting tool and that at least two cross wire feeds are provided in a supply-side nozzle block, the outlet side of which has a cutting edge for interacting with the upper clamping jaw of the supply-side clamping device forming the cutting tool, around which Disconnect cross wires from the wire supply.
  • the feeder arm which is removed from the feed side, can preferably be pivoted in the cross-wire direction by means of the power drive, the power drive preferably having a tensioning lever which can be actuated by a hydraulic cylinder which can be pressurized with adjustable pressure.
  • each guide block 1 essentially has a plurality of insertion nozzles arranged next to one another, which expediently consist of wear-resistant material and are loaded with longitudinal wires L depending on the desired line wire division.
  • Each guide block 1 also has a lower and upper, appropriately V-shaped guide prism for each insertion nozzle, the guide prisms each being pressed against the longitudinal wires by means of a spring plate in order to ensure exact guidance of the longitudinal wires L.
  • the guide blocks 1 are arranged on a rail, not shown, adjustable transversely to the direction of production P 1.
  • the recesses are only roughly adapted to the cross wire diameter; only the recess R furthest away from the nozzle block 2 is provided with a centering piece precisely matched to the cross wire diameter for the purpose of precise fixing of the cross wires Q, Q '.
  • the plates 3, 3 ' are attached with their upper end to a plate carrier 5, 5' extending across the machine width.
  • the pivoting movement of the flap shafts 6, 6 ' is effected by means of a pivoting device 7 formed from a cam disk and rocker arms.
  • the weft lines K, K ' are released for the transfer of the cross wires Q, Q' to be explained in the welding lines S, S '.
  • the feed nozzles in the nozzle block 2 have a mutual spacing corresponding to the smallest possible basic pitch a of the cross wire pitch in the grid to be manufactured and their dimensions are also adapted to the cross wire diameter to be processed.
  • the amount of the smallest possible basic division a depends primarily on the type of grid to be produced, for example inch division or metric division.
  • the transfer of the cross wires Q, Q 'from the weft lines K, K' into the welding lines S, S ' is carried out by means of two pivotable feeder arms 8, 9, which are each arranged on the outer side edge of the lattice web to be produced on the machine frame.
  • the two feeder arms 8, 9 are fastened on a common carrier 10.
  • the feeder arm 9, which is removed from the feed side, is displaceably arranged perpendicular to the production direction P 1 in accordance with the double arrow P4 on the support 10, so that it can assume any intermediate position Z indicated by dashed lines, which allows grid webs of a selectable width, i.e. selectable cross wire length.
  • the feed-side feeder arm 8 is provided with a clamping device 11 which is exactly aligned with the feed nozzles of the nozzle block 2 in the takeover position defined by the insertion lines K, K 'and is designed such that it clamps the transverse wires Q, Q' and, as explained below can also disconnect from the wire supply.
  • the other feeder arm 9 is provided with a clamping device 12 which can clamp the cross wires Q, Q '.
  • the clamping devices 11, 12 move to that shown in Fig. 2 Trajectories in the direction of arrows U, U 'to separate the cross wires Q, Q' from the wire supply and transfer them from the takeover positions K, K 'to the welding lines S, S'.
  • the clamping devices 11, 12 with the aid of the feeder arms 8, 9 perform the movements shown in FIG. 2 in the direction of the arrows O, O 'in order to move from the welding lines S, S' into the takeover positions K. , K 'to arrive and in the weft lines K, K' ready cross wires Q, Q 'to take over.
  • the movements O, O 'and U, U' consist of two coupled individual movements of the feeder arms 8, 9, etc. an essentially linear feed movement corresponding to the double arrow P5 and a tilting movement corresponding to the double arrow P6.
  • the carrier 10 is pivotally mounted on one end of a rocker arm 13 which is rigidly connected to a rocker shaft 14 at its other end.
  • the feed movement in accordance with the double arrow P5 is carried out by a feed device 15 consisting of a cam and rocker arm.
  • the rocker arm 13 can be set into a tilting movement by means of a tilting device 16 consisting of a cam disk and rocker arm according to the double arrow P6.
  • the cross wires Q, Q ' by means of positioning arms 17, 17', which project from a swivel drive 18 by means of a swivel drive 18 in accordance with the double arrow P7 and are provided at their free ends with recesses for the cross wires, in the welding lines S, S 'exactly positioned.
  • the positioning arms 17, 17 ' assume an upper working position when taking over the cross wires Q, Q' and during the welding process.
  • the positioning arms 17, 17 ' also have the task of damping the vibrations that occur during the transfer movement along the movement paths U, U' in the transverse wires Q, Q 'and completely eliminate them before the welding process.
  • the locking recesses of the positioning arms 17, 17 ' have a mutual distance which advantageously corresponds to the smallest possible basic pitch a of the cross wire pitch.
  • the positioning arms 17, 17 ' can be adjusted by means of an adjusting device 20 in the direction of production P1 in order to be adapted precisely to the respective cross wire division.
  • the transverse wires Q, Q ' are tensioned during the feed movement on the movement paths U, U' with the aid of a tensioning lever 22 which can be actuated by a tensioning cylinder 21 and is pivotably mounted in the feeder arm 9 and which clamps the clamping device 12 swings outwards in the direction of the cross wire or in the direction of the arrow P8 in order to eliminate any unevenness and waviness in the cross wires.
  • Pretensioning the cross wires also avoids asymmetries in the finished grid web due to thermal stresses during welding.
  • the clamping force is set according to the respective strength values of the cross wires. When using a hydraulic cylinder as a clamping cylinder 21, this is done, for example, by correspondingly controlling the hydraulic pressure.
  • the clamping device 11 consists of an upper jaw 23, 23 'and a lower jaw 24, 24'.
  • the upper jaw 23, 23 ' has on its side facing the nozzle block 2 a cutting edge, which makes it possible, in cooperation with a cutting edge on the outlet side of the nozzle block 2 during the feeder movement of the arms 8, 9, to cut off the transverse wires Q, Q' from the wire supply .
  • the clamping device 12 of the feeder arm 9 consists of an upper jaw 25, 25 'and a lower jaw 26, 26'.
  • the upper jaws 23, 23 'and 25, 25' each have a plurality of recesses which are adapted in their dimensions to the cross wire diameter and correspond in their lateral spacing to the smallest possible basic pitch a of the cross wires.
  • the clamping jaws each consist of a front part 23', 24 ', 25', 26 'in the longitudinal wire feed direction and of a rear part 23, 24, 25, 26, which each take up only one cross wire and are electrically insulated from each other by an insulation 27 and additionally from the holders of the clamping jaws in the feeder arms 8, 9.
  • the cross wire feed is done after completion of a weld as follows:
  • the clamping device 11 is opened by lowering the lower jaw parts 24, 24 'with the aid of a clamping lever 30 operated by a clamping drive 28 and a clamping cylinder 29 in the direction of arrow P9.
  • the clamping device 12 is opened by lowering the lower jaw parts 26, 26 'in the direction of arrow P9 with the aid of a clamping lever 32 actuated by a clamping cylinder 31.
  • the clamping lever 22 completes its movement in the direction of the arrow P8 and brings the clamping jaws 25, 26 into the end position shown in broken lines in FIG. 2.
  • the clamping devices 11, 12 are transferred together into the takeover positions K, K '.
  • the upper jaws move on the trajectories O, O 'shown in Fig. 2, whereas the lower jaws are guided on the trajectories O, O' substantially parallel trajectories, which, however, are not shown in Fig. 2 for clarity .
  • the clamping devices 11, 12 are closed in order to securely clamp the cross wires Q, Q'.
  • the closing movement in the direction of arrow P10 is caused by the lower jaws 24, 24 'and 26, 26', which is operated by means of the clamping lever 30 actuated by the clamping drive 28 and the clamping cylinder 29 or by means of the clamping cylinder 31 operated clamping lever 32 is executed.
  • the welding current from transformers and busbars is supplied by means of a power supply 33 to a top electrode 34 in the direction of production P 1 and initially flows over the rear welding spot formed by the longitudinal wire L and the rear cross wire Q into a rear lower electrode 35, from there either directly (Fig. 3b) or via electrically conductive electrode spacers 36, 36 '(Fig. 3a) in the front lower electrode 35', then over the front, formed by the longitudinal wire L and the front cross wire Q ' Welding point in a front upper electrode 34 'to finally be derived via a power supply 33' to corresponding busbars.
  • the lower electrodes 35, 35 'and the electrode spacers 36, 36' are removably attached in a lower electrode holder 37.
  • the two upper electrodes 34, 34 ' are electrically separated from one another by insulation 38.
  • the lower electrodes 35, 35 ' are fixed during the welding process, while the upper electrodes 34, 34' can be moved with the aid of an electrode bar 39 in accordance with the double arrow P 1 and can thus be acted upon with the required welding pressure.
  • the upper electrodes 34, 34 ' can each be individually adjusted with respect to their welding pressure to the dimensions of the longitudinal and transverse wires to be welded by means of an adjusting screw 40 and an electrode spring 41.
  • 3a and 3b schematically possible welding positions AG for the cross wires Q, Q 'are shown, each corresponding to a multiple of the smallest possible basic pitch a.
  • the welding positions AB are assumed.
  • a slightly modified, front upper electrode 34 'with a dash-dotted cutout is used to avoid re-welding of the already welded cross wire Q' located in position D.
  • Will one Cross wire division with twice the value of the basic pitch a is required, so either the welding positions AD or CB can be adopted.
  • the welding position CD corresponds to three times the value of the basic pitch a.
  • the two sub-electrodes 35, 35 ' are arranged adjacent, as shown in Fig. 3b.
  • the welding positions E-D define four times the smallest possible basic pitch a. If five times the basic pitch a is desired, the welding positions F-D or E-G can be adopted.
  • the welding position F-G allows cross wire division with six times the spacing of the basic pitch a.
  • the lower electrodes 35, 35 ' are separated by the electrode spacers 36, 36' in the latter welding positions.
  • the tilting shaft 14 can be adjusted on one side in the production direction P 1 by means of an eccentric adjustment 43 which can be adjusted via an adjusting spindle 42.
  • the positioning bar 19 can also be adjusted with the aid of an adjusting eccentric 44 to the exact orthogonality of the cross wires Q, Q 'to the longitudinal wires L.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Glass Compositions (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Resistance Welding (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Claims (13)

  1. Machine de soudage destinée à la fabrication de treillis constitués par des fils longitudinaux et transversaux (L,Q,Q′), se croisant à angle droit, soudés au niveau des points de croisement, comportant un dispositif destiné à amener les fils longitudinaux (L) dans un plan de soudage horizontal, deux dispositifs agencés en regard l'un de l'autre sur les lignes de trame (K,K′) pour l'introduction simultanée de deux fils transversaux (Q,Q′), d'un ensemble d'électrodes de soudage (33-37,33′-36′) pour l'exécution d'une soudure à double point dans la direction des fils longitudinaux (L), et deux bras d'amenée (8,9) destinés à transférer les fils transversaux (Q,Q′) des lignes de trame (K,K′) sur les lignes de soudage (S,S′), les bras d'amenée (8,9) étant situés à l'extérieur des fils longitudinaux extérieurs (L) et pouvant se déplacer en va-et-vient au moyen d'un support de bras d'amenée commun (10), se déplaçant perpendiculairement à la direction du fil longitudinal sur des trajectoires de mouvement prédéterminées entre les lignes de trame (K,K′) et les lignes de soudage (S,S′), machine de soudage caractérisée en ce que les bras d'amenée (8, 9) sont conçus pour recevoir en commun les deux fils transversaux (Q, Q′) et sont munis de dispositifs de bridage (11, 12) pour les fils transversaux (Q, Q′), en ce qu'au moins l'un des bras d'amenée (8, 9) est mobile pour la précontrainte commune des deux fils transversaux (Q, Q′) par rapport à l'autre bras d'amenée dans la direction du fil transversal, grâce à un entraînement mécanique (22) avec une force de tension réglable et en ce qu'au niveau des lignes de soudage (S, S′) sont prévus des organes de positionnement basculables (17, 17′) pour le positionnement précis des fils transversaux (Q, Q′) en fonction du pas prédéterminé des fils transversaux.
  2. Machine de soudage selon la revendication 1, caractérisée en ce qu'au moins l'un des bras d'amenée (9) est agencé de façon mobile sur le support de bras d'amenée (10) par rapport à l'autre bras d'amenée (8) pour le positionnement.
  3. Machine de soudage selon la revendication 1 ou 2, caractérisée en ce que les organes de positionnement sont formés par des bras en saillie (17, 17′) par rapport à un axe de basculement s'étendant sur la largeur de la machine, bras en saillie qui sont munis au niveau de leurs extrémités libres d'évidements pour le logement des fils transversaux.
  4. Machine de soudage selon l'une des revendications 1 à 3, caractérisée en ce que les trajectoires de mouvement (U, U′) des bras d'amenée (8, 9) pour les fils transversaux (Q, Q′) des fils de trame (K, K′) jusqu'aux lignes de soudage (S, S′) et les trajectoires de mouvement (O, O′) pour le mouvement en retour sont respectivement constituées par un tronçon d'avance (P₅) et un tronçon de mouvement basculant (P₆).
  5. Machine de soudage selon l'une des revendications 1 à 4, caractérisée en ce que les dispositifs de bridage (11, 12) pour les fils transversaux (Q, Q′) présentent des mâchoires de serrage inférieures pouvant s'ouvrir et se fermer (24, 24′ ; 26, 26′) qui coopèrent avec des mâchoires de serrage supérieures correspondantes (23, 23′ ; 25, 25′), et en ce que les mâchoires de serrage supérieures (23, 23′ ; 25, 25′) sont respectivement munies de plusieurs évidements destinés à recevoir les fils transversaux, dont la distance réciproque correspond au pas minimum prédéterminé du fil transversal (a).
  6. Machine de soudage selon la revendication 5, caractérisée en ce que la mâchoire de serrage supérieure (23, 23′) du dispositif de bridage (11) sur le côté d'amenée forme un outil coupant et en ce qu'au moins deux amenées de fil transversal sont prévues dans un bloc de buse (2) sur le côté amenée, dont le côté de sortie présente un bord coupant pour coopérer avec la mâchoire de serrage supérieure (23, 23′) formant l'outil de coupe du dispositif de bridage sur le côté amenée (11), pour sectionner les fils transversaux (Q, Q′) provenant du stock de fils.
  7. Machine de soudage selon la revendication 6, caractérisée en ce que la mâchoire de serrage inférieure (24, 24′) du dispositif de bridage (11) sur le côté amenée peut être actionnée par un levier de serrage (30) commandé par un vérin (29) et un entraînement mécanique (28), et en ce que la mâchoire de serrage inférieure (26, 26′) du dispositif de bridage (12) distant du côté d'amenée peut être actionnée par un levier de serrage (32) actionnable par un vérin (31) en opposition à la mâchoire de serrage supérieure correspondante (25, 25′).
  8. Machine de soudage selon l'une des revendications 5 à 7, caractérisée en ce que les mâchoires de serrage (23, 23′ ; 24, 24′ ; 25, 25′ ; 26, 26′) des dispositifs de bridage (11, 12) consistent respectivement en une partie avant (23′, 24′ ; 25′, 26′) dans la direction d'avance du fil longitudinal (P₁) et en une partie arrière (23, 24, 25, 26) qui sont séparées l'une de l'autre par une isolation (27).
  9. Machine de soudage selon l'une des revendications 6 à 8, caractérisée en ce que les distances réciproques des amenées de fil dans le bloc de buse (2) ainsi que les distances réciproques des évidements de logement dans les organes de positionnement (17, 17′) et dans les mâchoires de serrage supérieures (23, 23′ ; 25, 25′) correspondent au pas de base (a) le plus petit possible du pas des fils transversaux.
  10. Machine de soudage selon l'une des revendications 1 à 9, caractérisée en ce que le bras d'amenée (9) distant du côté d'amenée peut être mis en pivotement au moyen de l'entraînement mécanique (22) dans la direction des fils transversaux (Q, Q′), l'entraînement mécanique comportant de préférence un levier de tension (22) qui peut être actionné par un vérin hydraulique (21) commandé par une pression réglable.
  11. Machine de soudage selon l'une des revendications 1 à 10, caractérisée en ce que les électrodes inférieures (35, 35′) peuvent être agencées sur différentes positions de soudage (A-G) des lignes de soudage (S, S′) (figures 3a, 3b).
  12. Machine de soudage selon l'une des revendications 1 à 11, caractérisée en ce que les électrodes supérieures (34, 34′) sont ajustables individuellement au moyen d'une vis de réglage (40) et d'un ressort d'électrode correspondant (41).
  13. Machine de soudage selon l'une des revendications 1 à 12, caractérisée en ce que les lignes de trame (K, K′) sont respectivement définies par au moins une plaque à demeure (3, 3′) et un capuchon pivotant (4, 4′) qui délimitent entre eux un guidage de fil transversal (R).
EP90890161A 1989-05-24 1990-05-23 Machine pour souder des treillis Expired - Lifetime EP0399996B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1269/89 1989-05-24
AT0126989A AT395229B (de) 1989-05-24 1989-05-24 Gitterschweissmaschine

Publications (2)

Publication Number Publication Date
EP0399996A1 EP0399996A1 (fr) 1990-11-28
EP0399996B1 true EP0399996B1 (fr) 1993-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90890161A Expired - Lifetime EP0399996B1 (fr) 1989-05-24 1990-05-23 Machine pour souder des treillis

Country Status (9)

Country Link
US (1) US5113915A (fr)
EP (1) EP0399996B1 (fr)
JP (1) JPH04500176A (fr)
AT (2) AT395229B (fr)
DE (1) DE59001193D1 (fr)
ES (1) ES2018454T3 (fr)
GR (1) GR900300198T1 (fr)
RU (1) RU2008155C1 (fr)
WO (1) WO1990014181A1 (fr)

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AT407501B (de) * 1996-06-13 2001-04-25 Evg Entwicklung Verwert Ges Verfahren und vorrichtung zum herstellen von drahtgittermatten
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AT409941B (de) * 2001-03-07 2002-12-27 Evg Entwicklung Verwert Ges Vielpunkt-schweissmaschine zum herstellen von drahtgittermatten
DE10122398C1 (de) * 2001-05-09 2002-10-02 Jaeger Emil Gmbh Co Kg Querdrahtzuführung für eine Gitterschweißmaschine, mit wählbarer Zangen-Bahnkurve, und Schweißmaschine mit einer derartigen Querdrahtzuführung
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AT502466B1 (de) * 2004-07-20 2008-02-15 Evg Entwicklung Verwert Ges Verfahren und schweissmaschine zum herstellen von gitterprodukten
EP1704940A1 (fr) * 2005-03-21 2006-09-27 H.A. Schlatter AG Dispositif de positionnement pour positionner des fils transversaux dans une soudeuse de treillis et méthode de positionnement des fils transversaux dans une soudeuse de treillis
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction
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CN116140877A (zh) * 2023-02-22 2023-05-23 广州魁科机电科技有限公司 一种防变形的机翼支架焊接装置
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AT527583B1 (de) * 2023-11-27 2025-04-15 Evg Entwicklungs U Verwertungs Ges M B H Gitterschweißanlage mit zentralen Spanneinheiten

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AT267292B (de) * 1966-03-22 1968-12-27 Evg Entwicklung Verwert Ges Einrichtung zum Gittervorschub und Querdrahttransport bei Gitterschweißmaschinen
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AT302789B (de) * 1970-04-07 1972-10-25 Evg Entwicklung Verwert Ges Verfahren und Maschine zum Herstellen von geschweißten Gittern nach der Reibschweißmethode
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Also Published As

Publication number Publication date
US5113915A (en) 1992-05-19
EP0399996A1 (fr) 1990-11-28
ATA126989A (de) 1992-03-15
ATE88119T1 (de) 1993-04-15
JPH04500176A (ja) 1992-01-16
DE59001193D1 (de) 1993-05-19
AT395229B (de) 1992-10-27
ES2018454T3 (es) 1993-11-01
RU2008155C1 (ru) 1994-02-28
WO1990014181A1 (fr) 1990-11-29
GR900300198T1 (en) 1991-10-10
ES2018454A4 (es) 1991-04-16

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