EP1768796A1 - Procede et soudeuse pour la fabrication de treillis - Google Patents

Procede et soudeuse pour la fabrication de treillis

Info

Publication number
EP1768796A1
EP1768796A1 EP05758902A EP05758902A EP1768796A1 EP 1768796 A1 EP1768796 A1 EP 1768796A1 EP 05758902 A EP05758902 A EP 05758902A EP 05758902 A EP05758902 A EP 05758902A EP 1768796 A1 EP1768796 A1 EP 1768796A1
Authority
EP
European Patent Office
Prior art keywords
welding
longitudinal
elements
transverse
welding machine
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.)
Withdrawn
Application number
EP05758902A
Other languages
German (de)
English (en)
Inventor
Klaus Ritter
Josef Grabuschnig
Robert Tremmel
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 EP1768796A1 publication Critical patent/EP1768796A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • 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
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network

Definitions

  • the invention relates to a method for producing lattice products from each other at right angles intersecting and welded together at the intersection points flocks of longitudinal and transverse elements according to the electrical resistance welding method.
  • the invention also relates to a welding machine operating according to the electrical resistance welding method, comprising a device for transverse distribution of the longitudinal elements, a device for advancing the longitudinal elements in the longitudinal element feed direction along a horizontal longitudinal element feed plane and for introducing the longitudinal elements into the welding machine, a device for transverse conveying of cut transverse elements in the region of the longitudinal element feed plane, a device for feeding the transverse elements into the welding line of the welding machine running transversely to the longitudinal element feed direction, means for tensioning the transverse elements, several, arranged in a row transverse to the longitudinal element feed direction an upper and lower welding head existing welding units, and one can be coupled to the welding units transport device for Ver ⁇ push and positioning of the welding units transversely to the Lssenselementzu Switzerlandr ichtung.
  • the dispenser gives the longitudinal elements individually and sequentially to a Quer complicatein ⁇ direction, which conveys the longitudinal elements transversely to the longitudinal direction in the L LucasselementzuInstitutebene the welding machine by means of conveyor chains, by appropriate actuation of the delivery device and the conveyor chains of Querför ⁇ der drove the longitudinal elements approximately corresponding to the desired distances the longitudinal elements, the so-called longitudinal element division, are stored in the produced mesh product on the conveyor chains.
  • the longitudinal elements are lifted out of the conveyor chains and arranged by several, arranged above the conveyor chains, raised and lowered gripping tongs er ⁇ , the lifting elements and the gripper tongs so far transversely to the production direction of the welding machine ver - Be pushed that they are aligned with the layers of the longitudinal elements in the produced mesh product.
  • the gripper tongs give the longitudinal elements to a push-in cart which inserts the longitudinal elements into the welding machine.
  • the known system also has the disadvantage that technically complex devices are required in order to lift the longitudinal elements out of the cross conveyor and bring them into the exact longitudinal element positions.
  • the gripping tongs used in this case the takeover, in particular with long, thin longitudinal elements, is very susceptible to faults and frequently leads to incorrect gripping.
  • EP-B-399 996 discloses a welding machine for producing gratings of longitudinal and transverse wires which intersect at right angles and which are welded at the points of intersection.
  • two material strands serving as transverse wires are cut along two picking lines at the side of the welding line. machine supplied.
  • two transverse wires are severed from these material strands and removed from the two insertion lines by two feeder arms arranged outside the outer longitudinal wires and introduced into the welding line of the welding machine.
  • This feeding movement is carried out by a feeder carrier extending over the entire width of the welding machine and carrying the feeder arms. At least one of the feeder arms can be moved to pre-tension both transverse wires relative to the other feeder arm by means of a power drive with adjustable clamping force.
  • At least one of the feeder arms is arranged displaceably on the feeder carrier relative to the other feeder arm for positioning along the welding line.
  • the welding machine has the disadvantage that the transverse wires are fed laterally in their longitudinal direction and therefore any positioning of the transverse wires along the welding line is not possible.
  • the object of the invention is to avoid the described disadvantages of the known devices and to provide a method and a device of the type described in the introduction which make it possible to produce a grid product which has arbitrarily selectable longitudinal and transverse element divisions Grid product is positioned at selectable location within the welding machine. Furthermore, it should be possible to produce several mesh products at the same time.
  • the inventive method for producing Gitter ⁇ products of mutually perpendicular crossing and welded together at the intersections flocks of Lekss ⁇ and transverse elements by the electrical resistance welding method is characterized by the fact that at least one respective grating product associated set of longitudinal elements zu ⁇ next cyclically is deposited with predetermined lateral distances that subsequently the flock or the flocks that the sets of longitudinal elements are arranged at a predetermined position within the working range of the welding machine, that the respective transverse elements are fed individually into the welding machine by the associated group of longitudinal elements of predetermined position in the transverse direction and that welding units which are not required for welding the transverse elements with the longitudinal elements are pushed out of the area of the longitudinal elements parallel to the welding line and fixed outside the outer longitudinal elements.
  • the invention further provides a welding machine of the type described in the introduction, having the features that at least one longitudinal element feeding device, which is displaceable transversely to the longitudinal element feeding direction, is provided for separating the longitudinal elements and for depositing the longitudinal elements in at least one share Longitudinal elements of the Lssenselementzu slaughterfish adopted a displaceable transversely to Lssenselement- feed and can be raised and lowered in the vertical direction provided displacement device that is provided to take over the crowd or flocks of longitudinal elements of the displacement means a support table that for insertion of the longitudinal elements in the welding machine in the longitudinal element feed direction sliding pallet is provided, that for feeding the transverse elements in a predetermined welding position along the welding line for each cross member of a crowd two along the Sch Strukturli ⁇ never ver movable positioning means are provided, each of which for transporting the transverse elements into a transfer position which is as close as possible to the welding line of the welding machine, and a swiveling feeding and clamping device for transferring the transverse elements from the transfer position into
  • each upper welding head to a stationary, above the L Lucasselementzu ⁇ plane transverse to the weld line extending upper Verbin ⁇ carrier and each lower welding head to a fixed, below the LssenselementzuGermanebene transverse to the weld line lower clamp is clamped that Moving the welding units transversely to the L Lucasselementzu- guide along the welding line, the upper welding head of each welding unit to an above the L Lucasselementzu slaughter composition arranged parallel to the welding line movable Ver ⁇ adjusting device by means of a clamping device and the lower welding head of the same welding unit at ei ⁇ ne below
  • the adjustment device arranged parallel to the welding line and arranged parallel to the welding line can be docked to the longitudinal element feed plane and can be docked to the two welding heads by their associated connection carriers, and in that a control is provided which, depending on the welding program for the mesh product to be produced, positions the adjustment carriages for the welding units, the adjustment of the positioning carriages, the movements of
  • each Luckedselementzu classroom drives at least one storage magazine for cut longitudinal elements, a device for separating the longitudinal elements and a downwardly open, 29 devices ⁇ bare with a controllable flap AbschO réelle on.
  • the displacement device has a rail, which can be moved on two tracks perpendicular to the longitudinal element feed direction. sliding carriage, the hen with several, distributed in L josselementzu Swissein- direction, raisable and lowerable support strips verse ⁇ is hen, wherein the Absch ⁇ réelleen facing upper sides of the receiving strips are provided with a plurality of recesses for receiving the longitudinal elements.
  • the support table has a plurality of transversely extending to L Lucasselementzu Siliconein- direction extending over the working width of the welding machine transverse beams, wherein the distribution is selected such that the receiving strips are zwi ⁇ tween the cross members can be positioned and the Sch hassle ⁇ machine closest crossbars are closer than in the remaining area of the support table.
  • FIG. 1 shows a schematic side view of a welding machine according to the invention in the production direction
  • FIG. 2 shows a schematic side view of a conveying device according to the invention and a feeding and tensioning device for the transverse elements respectively transverse to the production direction
  • 4 shows a schematic elevation of a feed device for the longitudinal elements
  • FIG. 5 shows a schematic plan view of the feed device for the longitudinal elements.
  • the welding machine shown schematically in FIGS. 1-5 serves to produce mesh products G of finite length, each consisting of a plurality of longitudinal elements L, L 1 arranged at a distance and of a plurality of transverse elements Q, which also intersect at right angles and also at a distance, with the longitudinal and transverse elements at their tion points welded together.
  • the longitudinal and transverse elements can have any cross-sectional shapes in the context of the invention.
  • the longitudinal and transverse elements may, for example, have round cross-sections with a smooth or ribbed surface, as used for example as wires of reinforcing mats.
  • the longitudinal and transverse elements can also have different cross-sectional shapes within a grid product G, as is the case, for example, with gratings in which the longitudinal elements consist of flat ribbons, while the transverse elements preferably have a round or polygonal cross-sectional shape .
  • the welding machine according to the invention makes it possible to produce the mesh product G at any point within the working range AA (FIG. 5) of the welding machine.
  • the selection of the production site essentially depends on the optimum distribution of the welding current required to produce the mesh product G across the width of the welding machine.
  • the longitudinal elements L, L 1 are, as described later in FIGS. 4 and 5, parallel with mutual, selectable distance, the so-called longitudinal element pitch, along a horizontal longitudinal element feed plane XX (FIG. 2) in a feed direction P1 supplied to the welding machine.
  • XX horizontal longitudinal element feed plane
  • P1 supplied to the welding machine.
  • already cut to length longitudinal elements are supplied to produce a Gitterpro- product G with predetermined dimensions.
  • the welding machine shown schematically in FIG. 1 has laterally one machine frame 1 or 1 'arranged outside the working area AA of the welding machine, which is fixed by a stationary upper connecting beam 2 running above the longitudinal element feed plane XX and one fixed below LssenselementzuGermanebene XX extending lower connection carrier 3 verbun ⁇ the are.
  • the welding machine has a plurality of welding units 4, which are arranged in a welding line SS extending transversely to the longitudinal element feeding plane XX.
  • Each welding unit 4 has an upper welding head 5 with an upper electrode 6, and a lower welding head 7 with a lower electrode 8 movable against the upper electrode 6, the upper and lower electrodes 6, 8 welding the transverse element QS in the welding line SS to the longitudinal elements L, L 1 interact.
  • the upper electrode 6 is moved against the fixed lower electrode 8 or vice versa for welding.
  • the number of welding units 4 corresponds at least to the maximum number of longitudinal elements L, L 1 in the mesh product G to be produced, but is preferably chosen to be greater than this. In this case, the welding units not needed for welding the mesh product G are positioned in parking positions 4 'and 4 "on both sides at the edge of the working area AA of the welding machine outside the outer longitudinal elements L of the mesh product G to be produced.
  • the adjusting carriages 9, 10 are respectively firmly connected to the runs II 1, 11 "of a toothed belt 11, which with the aid of a drive device 12 in accordance with the directions It is possible to drive the double arrow P3 in such a way that the runs II 1 , 11 "are simultaneously moved in the same direction of the double arrow P2 , 10 in each case synchronously in the directions of the double arrow P4, so that the upper and the lower welding head 5, 7 of a welding unit 4, 4 ', 4 "are jointly positioned.
  • the drive device 12 has a drive wheel 14 driven by a drive motor 13.
  • a drive wheel 14 driven by a drive motor 13.
  • other drive devices which ensure synchronous adjustment of the adjustment carriages 9, 10.
  • These can be, for example, spindle drives for one adjusting carriage each, which are coupled outside the welding line to a common movement, for example via a belt.
  • the adjusting carriages 9, 10 move on upper guide rails 16, 16 'or lower guide rails 17, 17' extending parallel to the welding line SS, which are fastened respectively to the associated connecting beams 2, 3.
  • the respective upper welding head 5 from the upper connecting beam 9, and the respective lower welding head 7 are released from the lower connecting beam 10.
  • the transverse elements Q are first transported by two conveying devices 22, 22 'into the region of the welding line SS, from where, as shown in FIGS. 2 and 3, they are conveyed by means of two feeding and tensioning devices 23, 23'. taken over and placed in the welding line SS.
  • the conveying device 22 and the feeding and tensioning device 23 are on a carriage 24 (FIG. 3) which can travel along the welding line SS according to the directions of the double arrow P5, and FIGS
  • the conveying device 22 'and the feeding and tensioning device 23' are arranged on a further positioning carriage 24 '(FIG.
  • the positioning carriage 24 is displaceable parallel to the welding line SS via an upper guide carriage 25 (FIG. 3) on an upper guide track 26 and via a lower guide carriage 27 (FIG. 3) on a lower guide track 28.
  • the positioning carriage 24 ' is parallel to the welding line SS on an upper guide carriage 25' on an upper guide track 26 'and ei ⁇ nen lower guide carriage 27' on a lower réelles ⁇ tracks 28 'displaced.
  • the guideways 26, 26; 28, 28 ' are mounted on a parallel to the welding line SS extending cross member 29, which is connected via two side plates 30, 30' with the machine stands 1, 1 '.
  • the positioning of the positioning carriages 24, 24 ' is effected by a respective adjusting spindle 31, 31', which are mounted in spindle bearings 32, 33 or 32 ', 33' in the cross member 29.
  • the adjustment of the Adjusting spindles 31, 31 ' takes place by a respective drive 34, 34', which can be driven in accordance with the directions of the double arrow P6 and which is connected in each case via a drive belt 35, 35 'to a drive wheel 36, 36' of the adjusting spindles 31, 31 '.
  • the coupling of the adjusting spindles 31, 31 'with the positioning trolleys 24, 24' takes place in each case via spindle nuts 37, 37 '.
  • the transverse elements Q are fed by one or more supply magazines 38 (FIG. 4) in the direction of arrow P7 transversely to their longitudinal axis to the conveying devices 22, 22 ', wherein for the sake of clarity, FIG Fig. 2, only the conveyor 22 and the feeding and tensioning device 23 are shown.
  • FIGS. 2 and 3 the transverse elements Q are fed from the collecting chain into the conveying devices 22, 22 '.
  • the conveying devices 22, 22 'each have a transport chain 39, 39', which are guided via drive wheels 40, 40 'and deflection wheels 41, 41'.
  • the transport chains 39, 39 ' are cyclically driven in the direction of arrow P8 by a drive shaft 42 mounted in the side plates 30, 30' over the working width of the welding machine, the drive wheels 40, 40 'being non-rotatable, but along the drive shaft 42 are slidably connected thereto.
  • the drive of the drive shaft 42 takes place via a drive wheel 43 mounted on the side plate 30.
  • the conveyors 22, 22 'each have a bracket 44, 44', which supports 45, 45 'for the drive shaft 42 and bearings 46, 46 'for the Umlenkrä ⁇ 41, 41' wear.
  • the transport chains 39, 39 ' have regularly distributed drivers 46, into each of which a cross-member ment Q is occasionally inserted and which promote the supplied cross elements Q in the direction of arrow P8.
  • the transport chains 39, 39 ' are tensioned by means of chain tensioners 48, 48'.
  • a plurality of guide plates 49 and lateral guide plates 50 hold the transverse elements Q on the transport chains 39, 39 'and prevent them from jumping out of the drivers 47.
  • This Kochgabepo ⁇ is sition defined by a respective positioning fingers 51, 51 ⁇ are each rotated by means of a line extending over the working width of the welding machine drive shaft 52 operating cycle once through 360 ° in the direction of the arrow P9, whereby the tip of the positioning finger 51, 51 'the movement path B be ⁇ write.
  • the transverse element Q is taken over by the positioning fingers 51, 51 'of the carriers 47 of the transport chain 39, 39' and fixed in position, wherein the transverse element Q of two retaining fingers 53, 53 'by a respective torsion spring 54, 54' against the positioning finger 51, 51 'is pressed.
  • the position of the transverse element Q in the transfer position is precisely defined by the position of the positioning fingers 51, 51 '.
  • the drive shaft 52 for the positioning fingers 51, 51 ' is driven by a drive belt 55.
  • the drive belt 55 is guided via a driving wheel 56 which is connected to the drive shaft 52 and is driven in the direction of the arrow PlO by means of a drive wheel 57 of a drive 58.
  • the drive belt 55 is stretched taut by a belt tensioner 59. After the transfer of the transverse elements Q from the transport chains 39, 39 ' to the positioning fingers 51, 51 ', the transport chains 39, 39' cyclically moved in the direction of arrow P8.
  • Each feeding and tensioning device 23, 23 'for the transverse elements Q has a receptacle 60, 60', which is arranged on the associated positioning carriage 24, 24 '.
  • On each receptacle 60, 60 ' is ever a Zubringzylinder 61, 61' angeord ⁇ net, each piston rod of a Zubringzylinders 61, 61 'each in the directions of the double arrow PIl movable and with a pivot arm 62, 62' is connected.
  • the pivot arms 62, 62 ' are rotatably mounted in the rotational axes Dl, Dl 1 in the respective receptacles 60, 60'.
  • Each clamping lever 65, 65 ' is rotatably mounted in an axis of rotation D2, D2' in the respective pivot arm 62, 62 '.
  • a clamping cylinder 66, 66 ' is fastened to each clamping lever 65, 65', each piston rod of a clamping cylinder 66, 66 'being movable in each case in the directions of the double arrow P13 and being connected to a two-armed clamping lever 67, 67'.
  • Each clamping lever 67, 67 ' is rotatably mounted in an axis of rotation D3, D3' in the respective clamping lever 65, 65 'in accordance with the directions of the double arrows P14, P14'.
  • the clamping cylinders 66, 66 'each have a Endlagendämp ⁇ tion 68, which ensures a smooth, shock-freeecuringsab ⁇ run.
  • each clamping lever 67, 67 'a jaw 69 is fixed, which cooperates with a fixed to the respective clamping lever 65, 65' arranged jaw 70. All jaws 69, 69 ', 70, 70' are electrically isolated on their mounting levers 67, 67 '; 65, 65 'arranged.
  • the feeding of the transverse element Q from the transfer position of the positioning fingers 51, 51 'into the welding line SS takes place in the following manner:
  • the associated feed and clamping devices 23, 23' are jointly pivoted in the corresponding direction of the double arrow P 15 such that the clamping jaws 69, 69 ' ; 70, 70 'from the welding line S-S in transfer position of the positioning fingers 51, 51' pass.
  • the clamping cylinders 66, 66 'in the corresponding direction of the double arrow P13 the clamping jaws 69, 69' close; 70, 70 'and clamp the held by the positioning fingers 51, 51' and the remind ⁇ holding fingers 53, 53 'transverse element Q at its two ends.
  • the associated supply and Spann ⁇ devices 23, 23' together pivoted in the corresponding Rich ⁇ direction of the double arrow P15 such that the of the jaws 69th , 69 '; 70, 70 'clamped cross member Q from the transfer position of the positioning fingers 51, 51' in the welding line S-S, wherein the cross member Q is combed out of the retaining fingers 53, 53 '.
  • the transverse element Q describes the movement path Z in the direction of the arrow P16.
  • the clamping cylinders 64, 64 ' are actuated in the respective directions of the double arrows P12, P12', so that the cross member Q is tensioned in its longitudinal direction.
  • the positioning fingers 51, 51 ' are rotated on the movement path B by 360 ° and take over a new transverse element from the carriers 47 of the transport chains 39, 39'.
  • the welded cross member QS is conveyed together with the Lekssele ⁇ ments L, L 1 by a selectable length, the so-called Querele ⁇ ment division from the welding line SS, so in ei ⁇ nem subsequent power stroke of the welding machine, a new cross member Q for welding with the longitudinal elements L, L 1 can be supplied.
  • the feeding device for the longitudinal elements shown schematically in FIGS. 4 and 5 has two machine frames 71, 71 'which extend transversely to the longitudinal element feed direction P1.
  • at least one longitudinal element feed device 72 is arranged horizontally displaceable in the directions of the double arrow P17.
  • a further longitudinal element feed device 72 ' can be arranged in the machine frame 71, 71' within the scope of the invention
  • Directions of the double arrow P17 ' is displaceable.
  • Each longitudinal element feed device 72, 72 ' has a supply of longitudinal elements L, L 1 which are singulated in the longitudinal element feed devices 72, 72 and fed individually to a discharge opening 73, 73.
  • Each discharge opening 73, 73' is provided with a movable, control bakery closed flap.
  • each longitudinal element feed device 72, 72' the separated longitudinal elements L, L 1 via a guideway into the transfer compartments of a distribution chain thrown the was ⁇ .
  • the longitudinal elements L, L 1 are individually and with selectable lateral distance from the distribution chain on the racks 77, 77 'stored.
  • the toothed racks 77, 77 ' are distributed uniformly parallel to the longitudinal element feed direction Pl in such a way that they can absorb the longitudinal elements L, L 1 as far as possible without sagging.
  • the racks 77 'closest to the welding machine are wider, and distributed more narrowly than the racks 77 in the remaining area of the carriage 74, so that even short longitudinal elements can be safely stored on the racks 77, 77 '.
  • the racks 77, 77 ' have on their the Absch ⁇ réelleen 73, 73' facing upper sides uniformly distributed, sawtooth-shaped depressions, which are designed such that they a lateral Ver ⁇ slip of the longitudinal elements L, L 1 on the racks 77, 77 ' prevent.
  • the spacings of the depressions correspond to half the smallest possible longitudinal element pitch that can be produced by the welding machine.
  • a support table 78 is arranged which has a plurality of side posts 79 and a plurality of elements extending transversely to the longitudinal element feed direction Pl and extending over the working width AA of the welding machine
  • Cross bars 80 als ⁇ has, wherein the upper sides of the transverse bars 80 mentzu adjustment the L jossele ⁇ Define level XX of the welding machine.
  • the transverse bars 80 are distributed in such a way that the toothed racks 77, 77 'can be positioned between the transverse bars 80.
  • the transverse bars 80 closest to the welding machine are distributed more closely than in the remaining area of the outfeed.
  • the toothed strips 77, 77' are lowered in the corresponding position of the double arrow P19 in the transfer position 74 "of the sliding carriage 74.
  • Each group of longitudinal elements L, L The selection of the transfer point can be determined by the transverse displacement of the transfer carriage 74.
  • the transfer station Ie already when the longitudinal elements L are deposited , L 1 on the Zahn ⁇ afford 77, 77 'by appropriate positioning of the Leks ⁇ elements L, L 1 on the racks 77, 77' set, and the shifting carriage 74 always in its outermost Studentsgabestel ⁇ ment 74 "to move.
  • the storage magazine 38 for the transverse elements Q is also to be displaced in the directions of the double arrow P20.
  • a Einschub ⁇ carriage 81 is arranged on two rails 82, 82 'in the directions of the double arrow P21 parallel to the Lssenselementzu- direction Pl of a takeover position 81' to take over the longitudinal elements L, L 1 of the toothed racks 77, 77 'in a transfer position 81 to transfer the longitudinal elements L, L 1 to the welding machine is movable.
  • the insertion carriage 81 has a plurality of pairs of clamping nippers 83, which can be positioned and fixed precisely in the longitudinal element division of the grid product G to be produced.
  • the number of Klemmzangen ⁇ couples 83 is at least equal to the maximum number of processable using the welding system according to the invention longitudinal elements L, L 1st
  • the front ends of the longitudinal elements L, L' are first loosely held by means of the pairs of clamping nippers 83 in order to lock them in Longitudinal direction with their welding machine facing ends to align with the same initial position.
  • the alignment of the longitudinal elements L, L 1 is performed by a stop ruler 84 extending transversely to the longitudinal element feed direction Pl, which pivots into the longitudinal element feed plane XX and is moved in the corresponding direction of the double arrow P22 towards the longitudinal element ends.
  • the longitudinal elements L, L 1 are clamped by the pair of clamping nippers 83, and the stop ruler swings up to release the insertion path into the welding machine.
  • the longitudinal elements L, L 1 in the corresponding direction of the double arrow P21 in the transfer position shown in FIG. 5 are advanced to a set of clamping elements 85 in the welding machine.
  • the clamping elements 85 are preferably fastened respectively to the fixed part of the lower welding head 7.
  • the welding machine has a control which, in dependence on the welding program for the product G to be produced, positions the adjusting carriages 9, 10 for the welding units 4, 4 ', 4 ", the adjustment of the positioning carriages 24, 24'. with the conveyors 22, 22 'and the supply and tensioning devices 23, 23' for the transverse elements Q, also the positioning of the L LucasselementzuGermaneun- in 72, 72 ', the transverse displacement of the carriage 74, the actuation of the stop rule 84, and the Einschubbe- movement of the insertion carriage 81 tunes to each other and outputs the corresponding control commands.
  • the lattice products G produced at the same time can have different number of longitudinal and transverse elements, different longitudinal and transverse element diameters, different longitudinal element lengths and different longitudinal and transverse element divisions, so that two lattice products G which are both identical and completely different Operation can be produced simultaneously by the welding system according to the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Resistance Welding (AREA)

Abstract

L'invention concerne un procédé de fabrication de treillis (G) constitués d'assemblages d'éléments longitudinaux et transversaux (L, L' ; Q) se croisant à angle droit et soudés les uns aux autres à chaque point de croisement selon la méthode de soudage par résistance électrique. Selon ledit procédé, au moins un assemblage d'éléments longitudinaux associés à un treillis sont d'abord déposés selon une certaine cadence à une distance latérale prédéterminée les uns des autres ; cet (ces) assemblage(s) est (sont) ensuite déplacé(s) transversalement dans le plan d'acheminement d'éléments longitudinaux (X-X) de la soudeuse ; les assemblages d'éléments longitudinaux sont placés dans une position prédéterminée à l'intérieur de la zone de travail (A-A) de la soudeuse ; les éléments transversaux correspondants sont acheminés individuellement dans le sens transversal à la ligne de soudage (S-S) de la soudeuse, dans la position prédéterminée par l'assemblage d'éléments longitudinaux associé, et les unités de soudage qui ne sont pas nécessaires pour souder les éléments transversaux sur les éléments longitudinaux sont déplacées hors de la zone des éléments longitudinaux, parallèlement à la ligne de soudage, puis immobilisées en dehors des éléments longitudinaux extérieurs.
EP05758902A 2004-07-20 2005-07-07 Procede et soudeuse pour la fabrication de treillis Withdrawn EP1768796A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT12322004A AT502466B1 (de) 2004-07-20 2004-07-20 Verfahren und schweissmaschine zum herstellen von gitterprodukten
PCT/AT2005/000253 WO2006007612A1 (fr) 2004-07-20 2005-07-07 Procede et soudeuse pour la fabrication de treillis

Publications (1)

Publication Number Publication Date
EP1768796A1 true EP1768796A1 (fr) 2007-04-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05758902A Withdrawn EP1768796A1 (fr) 2004-07-20 2005-07-07 Procede et soudeuse pour la fabrication de treillis

Country Status (4)

Country Link
EP (1) EP1768796A1 (fr)
AT (1) AT502466B1 (fr)
WO (1) WO2006007612A1 (fr)
ZA (1) ZA200602303B (fr)

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IT201700061837A1 (it) * 2017-06-06 2018-12-06 M E P Macch Elettroniche Piegatrici Spa Apparato e metodo per realizzare una rete metallica
CN110116249B (zh) * 2019-06-11 2024-04-30 苏州富群智能科技有限公司 适用于接线盒的焊接装置
CN114147390A (zh) * 2021-11-07 2022-03-08 青岛伊唯特智能科技有限公司 一种龙门自动排焊装置及其使用方法
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CN116100215B (zh) * 2023-04-12 2023-06-27 安徽省中兴工程监理有限公司 一种大型特种钢结构焊接预热装置
CN118255163B (zh) * 2024-05-30 2024-08-20 深圳宜美智科技股份有限公司 Pcb自动外观检测设备

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AT502466B1 (de) 2008-02-15

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