US20120297598A1 - Plant and procedure for the automated production of truss structures - Google Patents

Plant and procedure for the automated production of truss structures Download PDF

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Publication number
US20120297598A1
US20120297598A1 US13/514,586 US201013514586A US2012297598A1 US 20120297598 A1 US20120297598 A1 US 20120297598A1 US 201013514586 A US201013514586 A US 201013514586A US 2012297598 A1 US2012297598 A1 US 2012297598A1
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United States
Prior art keywords
tubes
zone
pillars
transverse
plant
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.)
Abandoned
Application number
US13/514,586
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English (en)
Inventor
Cesar Del Campo y Ruiz de Almodovar
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.)
Grupo de Ingenieria Oceanica SL
Original Assignee
Grupo de Ingenieria Oceanica SL
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 Grupo de Ingenieria Oceanica SL filed Critical Grupo de Ingenieria Oceanica SL
Publication of US20120297598A1 publication Critical patent/US20120297598A1/en
Assigned to GRUPO DE INGENIERIA OCEANICA, S.L. reassignment GRUPO DE INGENIERIA OCEANICA, S.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEL CAMPO Y RUIZ DE ALMODOVAR, CESAR
Abandoned 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
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling

Definitions

  • This invention is classified within the technical sector of the manufacture of metallic structures made from longitudinal tubular elements, specifically truss structures. It refers to an automated manufacture system, specially designed to reduce the consumption of materials and energy, as well as reducing manufacturing time. The automation of all the manufacturing processes improves quality, notably reduces costs and improves efficiency and sustainability.
  • Truss structures built from longitudinal tubular elements are common and have a wide range of uses. These structures are formed of two or more longitudinal tubular elements.
  • Such structures composed of two elements, whether they are parallel or converging, joined together by other, smaller elements, are often used as beams for lighting rigs or heavy loads.
  • Those composed of three parallel longitudinal elements are also used as beams, for example in tower cranes and pillars.
  • Those made of more than three elements, situated at the vertexes of a polygon with n sides are generally used as pillars.
  • the longitudinal elements are placed in the required form and fixed to a surface; the points where the pieces of lesser cross section will be joined must be traced and the exact length required for each one measured; the tubes are cut in such a way that they are perfectly tangential to the longitudinal elements, i.e. as if they are to be inserted; a bevel is made for the welding; they are fixed using provisional spot welds to the longitudinal elements and then welded in place by hand.
  • the pieces that make up the lattice are usually curved first, then put in place and provisionally spot welded to the longitudinal elements, before then the final welding is done.
  • This invention therefore aims to describe an automated installation for the manufacture of truss structures composed of tubular elements, to resolve, in an economically viable and technically safe way, the following technical problems:
  • the truss manufacturing equipment described here is composed of a series of elements that are interrelated in such a way that when they operate in a chain it creates the automated manufacture of truss structures.
  • a truss structure is composed of parallel or converging longitudinal tubes, between which a series of tubes, which we call transverse tubes are placed in diagonal or in a saw-teeth shape.
  • the truss manufacturing plant is composed of a number of zones.
  • One of the first zones is for the positioning of the tubes.
  • This zone bears a number of similarities with the tracks of a bridge crane, upon which there are a series of vertical pillars that are installed with a devices to support the tubes distributed up their length.
  • the pillars can move along the tracks in order to alter the distance between them and similarly the support devices for the tubes can be raised and lowered on the pillars.
  • the pillars and supports are placed according to the final geometry of the desired truss structure.
  • a totally automated bridge crane that follows the instructions of a control system, takes the tube containers and, one by one selects the longitudinal tubes that will form the truss structure. It positions these tubes parallel to the ground and perpendicular to the tracks, in the support devices. Once all of the longitudinal tubes are in place, the bridge crane begins to place the transverse tubes in the corresponding supports, so that they are placed between the longitudinal tubes, either in parallel or converging with them. Once they are placed, in exact accordance with the proposed geometry, the motorized bobbins on which the tubes are supported, are activated and the structure is moved to the manufacturing zone, maintaining its geometry. This zone is in turn divided into the zone for joining tubes at the extremes and the zone for the shaping and welding of the transverse tubes.
  • the structure moves to the zone for the shaping and welding of the transverse tubes.
  • the tubes are held in place by pillars with supports identical to those in the positioning zone but which also have hydraulic cylinders that press and compress the transverse tube bending it against the longitudinal tube where, with double induction arc welders that approach automatically, the transverse tube is welded to the longitudinal one.
  • the final structure is then moved to a collecting station. In this area there are motorized tracks but there are no longer pillars.
  • the structure is moved sideways to the inspection and painting zone. This is a closed area where the welding is checked and the structure is painted and protected against corrosion.
  • FIG. 1 Floor plan of the full manufacturing equipment
  • FIG. 2 Profile of the bridge crane
  • FIG. 3 Elevation of one track with five pillars
  • FIG. 4 Detail of a pillar
  • FIG. 5 Detail of the process for curving the transverse tubes
  • This equipment is composed of a set of machines that can be automated and which interrelate to achieve the aim of automating the entire manufacturing process, from the selection of the materials to the finished product leaving the production line.
  • FIG. 1 represents an automated plant for the manufacture of truss structures of any shape or size.
  • the containers ( 2 ) which contain the longitudinal tubes ( 16 ) and the containers ( 2 ′) which contain the tubes that make up the transverse structure ( 17 ) arrive at the production plant, via a system of pneumatic supports or omnidirectional rollers.
  • the containers ( 2 ′′) which contain the tubes and parts for the manufacture of piles, which are the object of another invention.
  • All the containers ( 2 , 2 ′, 2 ′′) are centrally placed in relation to the tracks ( 1 ).
  • These tracks ( 1 ) are part of a first bridge crane used to place the tubes ( 16 , 17 ) for the structure and a second bridge crane, used to place the piles inside the truss pillars. Both bridge cranes are the same, in order to ensure that a fault with one does not paralyze the production process. Both bridge cranes have a parking space in the exterior (C), outside of the positioning zone (A).
  • these have a minimum clearance space of 12 m. under the magnets and a useable unit load capacity of 4000 Kg. They will have three trollies ( 14 ) that can move along the bridge and each trolly has a magnet ( 15 ) for picking up the tubes, two of them will hold the tube at the extremes and the third in the center. The magnets at the two extremes will have a safety system that is introduced inside the tubes so that, in the case of a failure in the magnetic support system, under no circumstances will the tubes fall.
  • the bridge crane will have a minimum span of 16 m.
  • a computer controlled system receives the static calculations that define the geometry of the truss structure to be built and activates the bridge crane.
  • the bridge crane takes a longitudinal tube ( 16 ) which is located horizontally in the container ( 2 ) and it carries it, maintaining the horizontal position (“lying down”), to the positioning area, which is consists of a series of pillars ( 4 ). As you can see in FIG. 3 , these pillars ( 4 ) can move along the length of their roller tracks ( 3 ) and in the best mode contemplated there would be five of these tracks.
  • FIG. 4 it can be observed that on each of these pillars ( 4 ) there are a number of motorized platforms ( 13 ) that can move up and down the pillars ( 4 ). On these platforms ( 13 ) there are large bobbins ( 6 ) on which the longitudinal tubes are supported.
  • both the pillars ( 4 ) and the bobbins ( 6 ) can be moved to the precise distance required for placing the longitudinal tubes.
  • the bridge crane continues the operation until all the longitudinal tubes are in place.
  • the bridge crane takes the transverse tubes ( 17 ) from container ( 2 ′) and it places them on the small bobbins ( 6 ′) located on the movable platforms ( 13 ) on the pillars ( 4 ).
  • a structure of this kind is a polygon, the faces of which are formed by a number of longitudinal tubes, joined together by transverse tubes of a smaller cross section, with no tubes (neither longitudinal nor transverse) in the interior of the structure.
  • the interior pillars that support the top face only have bobbins at floor level, for the lower face and on the opposing upper face, as observed in FIG. 3 .
  • the bridge crane places these last tubes and finishes the placing of all the elements of the structure, which are precisely located according to the required geometry.
  • the system thus conceived, allows structures of any number of longitudinal elements to be manufactured, simply putting the necessary number of pillars ( 4 ) and bobbins ( 6 , 6 ′) for the dimensions, and moving the pillars ( 4 ) on the tracks on the floor ( 3 ) and the bobbins ( 6 , 6 ′) on their platforms ( 13 ) on the pillars ( 4 ), all activated by motors and rack and pinion systems, automated by the control system.
  • the pillars ( 4 ) are placed on platforms ( 13 ′) from below with articulations activated by mechanical rotary actuators that enable to pillar to stand at a variable angle, thus making possible the creation of flat plane, triangular or square geometries.
  • the pillars ( 4 ) are made of individual elements joined together to adapt their height to the required dimensions in each case.
  • the zone for the shaping and welding of the transverse tubes ( 9 ), is made up of a set of tracks ( 3 ) with pillars ( 4 ) just like those in the positioning area except that the pillars ( 4 ) in the zone for the shaping and welding of the transverse tubes ( 9 ), as can be observed in FIG. 5 , have hydraulic telescopic pistons ( 18 ) and vertical axis bobbins ( 19 ), that push and compress the transverse tube ( 17 ) bending it against the longitudinal tube ( 16 ), where it is welded in place by double induction arc welders that approach automatically, fixing the transverse tube ( 17 ) to the longitudinal one ( 16 ).
  • the operating procedure will be the following: in the zone for the shaping and welding of the transverse tubes ( 9 ) the transverse tubes ( 17 ) arrive, placed between and parallel to the longitudinal tubes ( 16 ). Two hydraulic pistons ( 18 ) push the transverse tube ( 17 ) located between two longitudinal tubes ( 16 ) bending it, until the transverse tube ( 17 ) butts against the corresponding longitudinal tube ( 16 ), so that the transverse tube ( 17 ) is in diagonal and resting on the longitudinal tube ( 16 ) at the required angle. Then the double induction arc welders approach and weld the contact points.
  • the hydraulic piston ( 18 ) maintains the pressure for the programmed cooling time, and then retracts and lowers, to allow the welded structure to advance.
  • This operation is repeated at the ends of all the longitudinal tubes ( 16 ) that need to be extended.
  • the lengthened structure continues to advance towards the welding zone ( 9 ) and the new transverse tube ( 17 ) is shaped and welded in place. As it is finished, it leaves the manufacturing zone ( 9 ) and passes to the collecting station ( 10 ).
  • the collecting station ( 10 ) consists of a set of parallel tracks (without pillars), provided with motorized bobbins ( 11 ), to advance the structure in a lengthways direction. They also have rack and pinion type transmission elements for the sideways movement of the entire structure. The structure, which is now completed, is moved through this collecting station ( 10 ) to the inspection and painting zone ( 12 ).
  • the inspection and painting zone ( 12 ) is a closed and protected area where the inspection of the welding is carried out, and the structure is painted and protected against corrosion. Once painted and finished, the structure is taken outside to the loading and shipping or assembly zones (not shown).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Civil Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Artificial Fish Reefs (AREA)
  • Jib Cranes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • General Factory Administration (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US13/514,586 2009-12-11 2010-12-10 Plant and procedure for the automated production of truss structures Abandoned US20120297598A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ESP200902320 2009-12-11
ES200902320A ES2361869B1 (es) 2009-12-11 2009-12-11 Planta y procedimiento para la fabricación automatizada de estructuras de celos�?a.
PCT/ES2010/000513 WO2011070202A1 (fr) 2009-12-11 2010-12-10 Installation et procédé pour la fabrication automatisée de structures à treillis

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US20120297598A1 true US20120297598A1 (en) 2012-11-29

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US13/514,586 Abandoned US20120297598A1 (en) 2009-12-11 2010-12-10 Plant and procedure for the automated production of truss structures

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US (1) US20120297598A1 (fr)
EP (1) EP2511441A1 (fr)
AR (1) AR079368A1 (fr)
ES (1) ES2361869B1 (fr)
WO (1) WO2011070202A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941293B (zh) * 2012-11-28 2014-10-15 无锡威华电焊机制造有限公司 钢筋桁架整形调整机构
WO2017153314A1 (fr) 2016-03-10 2017-09-14 Inventio Ag Dispositif de réalisation à assistance robotique d'une ossature d'une installation de transport de personnes
RU2729130C2 (ru) 2016-03-10 2020-08-04 Инвенцио Аг Способ роботизированного изготовления несущей конструкции установки для перевозки людей

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636604A (en) * 1970-02-11 1972-01-25 Robert M Gooder System for fabricating structural members
AT365486B (de) * 1979-08-03 1982-01-25 Evg Entwicklung Verwert Ges Maschine zum selbsttaetigen herstellen von geschweissten gittertraegern
JPH01501773A (ja) * 1986-03-20 1989-06-22 ラフォン，ギュイ 特に鉄筋コンクリート用の金属製骨組を自動的に製造する柔軟性を有する一体型機械
US4836436A (en) * 1987-08-17 1989-06-06 Gerald McDonald Method of manufacturing a fabricated open web steel joist
US5123587A (en) * 1991-06-11 1992-06-23 Owen Joist Corporation Method and apparatus for making steel joists
FR2836402B1 (fr) * 2002-02-22 2004-05-07 Usinor Procede de fabrication d'une structure plane en treillis tubulaire pour la realisation d'un element d'ossature de batiment et notamment d'une ferme ou d'une panne
US6912787B1 (en) * 2002-08-28 2005-07-05 Varco Pruden Technologies, Inc. Method of forming a joist assembly and a chord used in such joist assembly
AT413342B (de) * 2003-08-27 2006-02-15 Evg Entwicklung Verwert Ges Verfahren und vorrichtung zum herstellen eines gitterträgers
ES2264640B1 (es) * 2005-06-17 2007-12-01 Ferraplana, S.L. Equipo automatico para la fabricacion de armaduras metalicas.

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Publication number Publication date
ES2361869A1 (es) 2011-06-24
EP2511441A1 (fr) 2012-10-17
WO2011070202A1 (fr) 2011-06-16
AR079368A1 (es) 2012-01-18
ES2361869B1 (es) 2012-04-04
WO2011070202A4 (fr) 2011-08-18

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Owner name: GRUPO DE INGENIERIA OCEANICA, S.L., SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEL CAMPO Y RUIZ DE ALMODOVAR, CESAR;REEL/FRAME:030397/0559

Effective date: 20120606

STCB Information on status: application discontinuation

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