CN103831509A - Spiral submerged arc steel tube welding procedure qualification method - Google Patents

Spiral submerged arc steel tube welding procedure qualification method Download PDF

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Publication number
CN103831509A
CN103831509A CN201410100690.8A CN201410100690A CN103831509A CN 103831509 A CN103831509 A CN 103831509A CN 201410100690 A CN201410100690 A CN 201410100690A CN 103831509 A CN103831509 A CN 103831509A
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CN
China
Prior art keywords
welding
spiral
submerged
weldering
outside weld
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CN201410100690.8A
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Chinese (zh)
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CN103831509B (en
Inventor
毕宗岳
张君
张锦刚
田小江
王勇
牛辉
宋红兵
李博锋
杨志孝
焦炜
王一岑
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宝鸡石油钢管有限责任公司
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Priority to CN201410100690.8A priority Critical patent/CN103831509B/en
Publication of CN103831509A publication Critical patent/CN103831509A/en
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Publication of CN103831509B publication Critical patent/CN103831509B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/18Submerged-arc welding
    • B23K9/186Submerged-arc welding making use of a consumable electrodes
    • B23K9/188Submerged-arc welding making use of a consumable electrodes making use of several electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/12Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/02Seam welding; Backing means; Inserts
    • B23K9/032Seam welding; Backing means; Inserts for three-dimensional seams
    • B23K9/0325Seam welding; Backing means; Inserts for three-dimensional seams helicoidal seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/127Means for tracking lines during arc welding or cutting
    • B23K9/1272Geometry oriented, e.g. beam optical trading
    • B23K9/1274Using non-contact, optical means, e.g. laser means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/32Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes

Abstract

The invention discloses a spiral submerged-arc welding tube procedure qualification method. The method includes the following steps that a tubular product section is rotated in the circumferential direction and moved transversely in the axis direction of the tubular product section, and spiral line motion is combined by circumferential rotation and transverse moving in the axis direction; a welding gun performs multi-freedom-degree multi-wire submerged arc internal and external welding on a spiral line of the tubular product section; by the adoption of a laser tracking system, a digitized welding power source system, a welding parameter real-time collecting and recording system and an alternating-current servo drive system, welding positions, welding parameters, groove sizes and weld pass features of weld joints are detected and recorded in real time to achieve spiral submerged-arc welding tube procedure qualification.

Description

A kind of spiral submerged arc steel-pipe welding procedure qualification method
Technical field:
The invention belongs to spiral submerged arc steel-pipe welding technology field, relate to a kind of spiral submerged welded pipe procedure qualification method.
Background technology:
Oil gas conveying is one of domestic and international pipe-line construction major product with spiral submerged welded pipe.According to technique of pipe specifications and technical conditions requirement for oil transportation, before production, must or adopt the flat board of same alloy system to carry out qualification of welding procedure on steel pipe, to guarantee weldquality.
At present, on steel pipe, carrying out qualification of welding procedure needs tubulation factory to produce in advance, but because actual production line is longer, and completing qualification of welding procedure needs a large amount of manpower and materials, and causes the waste etc. of a large amount of tubing in welding parameter adjustment process.Adopt dull and stereotyped docking to carry out qualification of welding procedure, tubing real bearing state, field of welding temperature and the locus of welding gun on spiral seam when it cannot simulated field welding, there is certain difference in control and the actual production of its parameter adjustment amount and weld seam pattern.This just needs one can carry out in laboratory spiral submerged welded pipe procedure qualification method, guarantee to combine closely with actual production, welding process not only can truly represent tubing time of day, Space adjustment welding torch position that simultaneously can be on helix according to welded tube specification, finally by qualification of welding procedure, can optimize welding bead pattern and guarantee weldquality, and can save a large amount of manpower financial capacities, reduce the consumption of tubing etc.
Summary of the invention:
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of spiral submerged welded pipe procedure qualification method is provided, overcome and on production line, adopted steel pipe or laboratory to adopt dull and stereotyped shortcoming of carrying out qualification of welding procedure.
The object of the invention is to solve by the following technical programs:
Adopt the spiral seam pipeline section of approximately 2 meters, by rotating in a circumferential direction of pipeline section and the synthetic helix of axial translation, by regulating the locus of welding gun on helix, can complete the procedure qualification of different size spiral submerged arc welded steel pipe simultaneously.Because this qualification of welding procedure method has been simulated stress state, field of welding temperature and the welding torch position of tubing in actual production welding process completely, the adjustment of its welding parameter and actual production line are basically identical, so its result is produced for actual helix tube, has good anastomose property.The final welding procedure of passing through evaluation, can guarantee the weldquality of the spiral seam tubing of actual production, and can save a large amount of manpower and materials, reduces the consumption of tubing etc.
The technical solution used in the present invention:
Make tubing section along circumference rotation and along the translation of tubing section axis direction, by rotating in a circumferential direction and the synthetic spiral motion of axis direction translation; Make welding gun on tubing section spiral line, carry out outside weld in multiple degrees of freedom multi-wire submerged-arc; Adopt laser tracking system, digital welding power source system, welding parameter Real-time Collection and register system, AC servo drive system, in real time detect and the welding position, welding parameter, groove size and the welding bead pattern that record weld seam, realize spiral submerged welded pipe procedure qualification.
When spiral submerged welded pipe procedure qualification method of the present invention makes to weld, tubing stress state and field of welding temperature and actual conditions are basically identical; Adopt tubing section along rotating in a circumferential direction and axial translation, realize screw; Adopt the inside and outside welding head of multiple degrees of freedom multi-wire submerged-arc, realize the adjustment of welding gun locus on helix; Adopt laser tracking system, digital welding power source system, welding parameter Real-time Collection and register system and AC servo drive system, realize real-time detection and the record of soldering joint automatic tracking and welding position, welding parameter, groove size and welding bead pattern.
Described spiral seam pipe segment length 2000-2400mm, caliber is Φ 508mm-Φ 1422mmm, wall thickness is less than or equal to 25.4mm.
Described rotating in a circumferential direction refer in pipeline section rotates in a circumferential direction on welding chassis and carry out translational motion along pipeline section axis direction in orbit together with chassis with axial translation, and its rotate in a circumferential direction speed and axial translation speed depend on the spiral angle of helix speed of welding and steel pipe.
Described welding bench car owner will be compressed and be driven air cylinder group, brush to drive cylinder to form by steel pipe support rotating roller mechanism, steel pipe anti-channeling hold-down mechanism, welding brush group, chassis driving mechanism, rotary drive mechanism, anti-channeling.Welding process chassis is in orbit when straight line uniform motion, and its steel pipe support rotating roller rotates in a circumferential direction.
Described multiple degrees of freedom is that head can be at level-vertical direction rectilinear motion, simultaneously can be in horizontal plane and vertical plane rotation, and adjusting welding gun can regulate separately the spacing of welding wire, highly, inclination angle, front and back and position, left and right.
Described multi-wire submerged-arc is outside weld mariages, 3 of interior welderings.
The welding gun helix that is adjusted to of the locus of described welding gun on helix raises distance or the arc length (outside weld is for departing from the outside upper horizontal level of body, and interior weldering is horizontal level under departing from body) that the horizontal anglec of rotation, the welding gun inclination anglec of rotation, welding gun front and back and upper-lower position, inclination angle, welding wire front and back, distance between weldingwires, dry extension of electrode amount and welding wire depart from steel pipe horizontal level on helix.
The advantage that the present invention has and effect:
1, the present invention can adopt in laboratory pigtail to replace flat board to carry out qualification of welding procedure weldering.
2, the motion mode of welding process pipeline section of the present invention is for rotating in a circumferential direction and axial translation, and its driving all adopts AC servo drive system, and synthetic screw velocity accuracy is high.
3, laser tracking system of the present invention, inverter power sources system, welding parameter Real-time Collection and register system and AC servo drive system, experimentation can be realized real-time detection and the record of soldering joint automatic tracking and welding position, welding parameter, groove size, welding bead pattern.
Brief description of the drawings:
Fig. 1 is the overall structure schematic diagram of multi-functional multi-wire submerged-arc welder.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is outside weld main frame and 6 submerged arc outside welds of multiple degrees of freedom and MAG outside weld handpiece structure front view.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the top view of Fig. 3.
Fig. 6 is that the outer welding head of 6 submerged arc outside welds of multiple degrees of freedom and MAG horizontally rotates schematic diagram.
Fig. 7 is that the outer welding head of 6 submerged arc outside welds of multiple degrees of freedom and MAG rolls schematic diagram.
Fig. 8 is internal welding machine structure and 4 vertical masonry joint submerged arc internal welding machine header structure schematic diagrames.
Fig. 9 is the top view of Fig. 8.
Figure 10 is 3 spiral submerged arc internal welding machine header structure schematic diagrames.
Figure 11 is TIG/MIG combination internal welding machine header structure schematic diagram.
Figure 12 is multifunctional table mechanism of car front view.
Figure 13 is the top view of Figure 12.
Brief description of the drawings: 1, welding auxiliary rack; 2, outside weld main frame; 3, the outer welding head of 6 submerged arc outside welds of multiple degrees of freedom and MAG; 4, interior weldering lifting column; 5, interior weldering lifting cantilever; 6, interior weldering three-dimensional adjusting mechanism; 7,4 vertical masonry joint submerged arc internal welding machine heads; 8,3 spiral submerged arc internal welding machine heads; 9, TIG/MIG combination internal welding machine head; 10, multi-functional welding chassis; 11, digitalized S AW welding machine; 12, the outer welding machine of MAG; 13, welding machine in TIG; 14, welding machine in MIG; 15, MAG outside weld water cooling box; 16, weldering water cooling box in TIG/MIG; 17, weldering wire-feed motor in MIG; 18, weldering wire-feed motor in SAW; 19, the large hopper of outer-welding welding flux; 20, outside weld wire feeding disc; 21, interior welding wire dish; 22, welding flux feeding device; 23, flux collection system; 24, gas is protected weldering gas mixing ratio cabinet; 25, outside weld console; 26, interior weldering console; 27, welded rails; 2-1, the traversing base of outside weld main frame; 2-2, outside weld main frame column; 2-3, outside weld main frame weldering cantilever; 2-4, outside weld host driven mechanism; 2-5, base line slideway; 2-6, base screw-nut; 2-7, column line slideway; 2-8, column screw-nut; 3-1, outer welding head horizontal rotary mechanism; 3-2, outer welding head roll mechanism; 3-3, outside weld WidFin travel mechanism; 3-4 outside weld HeiFin travel mechanism; 3-5, outside weld fine setting drive servomotor; 3-6,6 SAW outside weld wire feeder arc supports; 3-7,6 SAW outside weld wire-feed motor mechanism for installing; 3-8,6 SAW outside weld wire-feed motor; 3-9, MAG outside weld wire-feed motor; 3-10,6 outer welding wire straighteners of SAW; The outer welding wire straightener of 3-11, MAG; 3-12,6 SAW outside weld wire feed bourdon tubes; 3-13, MAG outside weld wire feed bourdon tube; 3-14,6 SAW outside weld welding guns; 3-15, MAG outside weld water cooled welding torch; 3-16,6 outer welding mechanisms of SAW turn type connector; The outer welding mechanism connector of 3-17, MAG; Inclination angle and spacing adjusting mechanism before and after 3-18,6 SAW outside weld welding guns; 3-19, MAG outside weld upright position governor motion; 3-20, submerged-arc welding laser tracking and monitoring system; 3-21, the little hopper of solder flux; 3-22, flux restoring mouth; 4-1, interior weldering lifting column frame; 4-2, interior weldering upright post base; 4-3, interior weldering lifting column driving mechanism; 5-1, interior weldering lifting cantilever beam; 5-2, interior weldering lifting cantilever left side slide mechanism; 5-3, interior weldering lifting cantilever right side slide mechanism; 6-1, interior weldering three-dimensional adjusting mechanism X-axis balladeur train; 6-2, interior weldering three-dimensional adjusting mechanism Y-axis balladeur train; 6-3, interior weldering three-dimensional adjusting mechanism Z axis balladeur train; Weldering welding gun in 7-1,4 vertical masonry joint submerged arcs; Weldering welding gun inclination angle, front and back and spacing adjusting mechanism in 7-2,4 vertical masonry joint submerged arcs; Weldering welding gun follower in 7-3,4 vertical masonry joint submerged arcs; Weldering laser indicator lamp in 7-4,4 vertical masonry joint submerged arcs; 7-5,4 vertical masonry joint submerged arc inner welding video devices; Weldering solder flux feeding hopper in 7-6,4 vertical masonry joint submerged arcs; Weldering flux restoring mouth in 7-7,4 vertical masonry joint submerged arcs; Soldered fishplate bar in 7-8,4 vertical masonry joint submerged arcs; Weldering welding gun in 8-1,3 spiral submerged arcs; Weldering solder flux ship in 8-2,3 spiral submerged arcs; Weldering welding gun inclination angle, front and back and spacing adjusting mechanism in 8-3,3 spiral submerged arcs; Weldering welding-torch horizontal rotating mechanism in 8-4,3 spiral submerged arcs; In 8-5,3 spiral submerged arcs, weldering welding gun rolls mechanism; Weldering laser indicator lamp in 8-6,3 spiral submerged arcs; 8-7,3 spiral submerged arc inner welding video monitors; Weldering solder flux feeding hopper in 8-8,3 spiral submerged arcs; Weldering flux restoring mouth in 8-9,3 spiral submerged arcs; Soldered fishplate bar in 8-10,3 spiral submerged arcs; 9-1, MIG water cooled welding torch; 9-2, MIG welding gun elevating mechanism; 9-3, MIG welding gun oscillation mechanism; 9-4, TIG water cooled welding torch; 9-5, TIG wire-feeding pipe; 9-6, TIG weld wire-feed motor; 9-7, TIG welding gun oscillation mechanism; 9-8, TIG welding gun arc voltage governor motion; Soldered fishplate bar in 9-9, TIG/MIG; 10-1, plate welding workbench; 10-2, steel pipe support and rotating roller mechanism; 10-3, steel pipe anti-channeling hold-down mechanism; 10-4 welding conduction brush group; 10-5, chassis vehicle frame; 10-6, chassis driving mechanism; 10-7, rotating roller driving mechanism; 10-8, air cylinder group; 10-9, trolley running running roller.
Detailed description of the invention:
Embodiment 1: carry out Φ 1422 × 21.4mm spirally welded pipe example
As shown in figure 1 to figure 13, a kind of multi-functional multi-wire submerged-arc welder, comprise welding auxiliary rack 1, outside weld main frame 2, the outer welding head 3 of 6 submerged arc outside welds of multiple degrees of freedom and MAG, interior weldering lifting column 4, interior weldering lifting cantilever 5, interior weldering three-dimensional adjusting mechanism 6, 4 vertical masonry joint submerged arc internal welding machine heads 7, 3 spiral submerged arc internal welding machine heads 8, TIG/MIG combination internal welding machine head 9, multi-functional welding chassis 10, digitalized S AW welding machine 11, the outer welding machine 12 of MAG, welding machine 13 in TIG, welding machine 14 in MIG, MAG outside weld water cooling box 15, weldering water cooling box 16 in TIG/MIG, weldering wire-feed motor 17 in MIG, weldering wire-feed motor 18 in SAW, the large hopper 19 of outer-welding welding flux, outside weld wire feeding disc 20, interior welding wire dish 21, welding flux feeding device 22, flux collection system 23, gas is protected weldering gas mixing ratio cabinet 24, outside weld console 25, interior weldering console 26, welded rails 27.
Described digitalized S AW welding machine 11, the outer welding machine 12 of MAG, MAG outside weld water cooling box 15, the large hopper 19 of outer-welding welding flux, outside weld wire feeding disc 20, welding flux feeding device 22 are individually fixed in welding auxiliary rack 1 top; Outside weld main frame 2 is installed on the lower left of welding auxiliary rack 1; 6 submerged arc outside welds of multiple degrees of freedom connect with the outside weld main frame weldering cantilever 2-3 of outside weld main frame 2 by outer welding head horizontal rotary mechanism 3-1 with the outer welding head 3 of MAG, every welding gun can and be moved up and down in all around, locus, simultaneously also can be in horizontal plane and vertical plane rotation; Interior weldering lifting column 4 is mounted on welding auxiliary rack 1 right front; Interior weldering lifting cantilever 5 is connected by slide mechanism 5-2 and interior weldering lifting cantilever right side slide mechanism 5-3 and interior weldering lifting column 4 on the left of interior weldering lifting cantilever, and stretches to left; 6,4 vertical masonry joint submerged arc internal welding machine heads 7 of interior weldering three-dimensional adjusting mechanism are fixed on interior weldering lifting cantilever 5 left ends by screw rod successively; 3 spiral submerged arc internal welding machine heads 8, TIG/MIG combination internal welding machine heads 9 are installed on respectively the left end of interior weldering three-dimensional adjusting mechanism 6 by soldered fishplate bar 9-9 in soldered fishplate bar (8-10) in 3 spiral submerged arcs and TIG/MIG; Welded rails 27 be installed on the outer welding head of 6 submerged arc outside welds of multiple degrees of freedom and MAG under, and extend to and the dead ahead of interior weldering lifting column 4, welded rails 27 is made up of two parallel orbits; Multi-functional welding chassis 10 is positioned on welded rails 27, can be on guide rail infinitely variable speeds rectilinear motion; In TIG, in welding machine 13, MIG, in welding machine 14, TIG/MIG, weldering water cooling box 16, gas guarantor weldering gas mixing ratio cabinet 24 are individually fixed in welding auxiliary rack 1 back lower place; In MIG, in weldering wire-feed motor 17 and SAW, weldering wire-feed motor 18 is mounted on respectively in interior weldering lifting cantilever 5; It is right-hand that interior welding wire dish 21 is mounted on interior weldering lifting column 4; It is right-hand that flux collection system 23 is mounted on welding auxiliary rack 1; Outside weld console 25 and interior weldering console 26 are individually fixed in 6 submerged arc outside welds of multiple degrees of freedom and 3 and 4 vertical masonry joint submerged arc internal welding machine head 7 outsides of the outer welding head of MAG, and retain 20-30mm position with multi-functional welding chassis 10.
The outer welding head 3 of described outside weld main frame 2,6 submerged arc outside welds of multiple degrees of freedom and MAG, multi-functional welding chassis 10, digitalized S AW welding machine 11, the outer welding machine 12 of MAG, MAG outside weld water cooling box 15, welding flux feeding device 22, flux collection system 23, gas are protected weldering gas mixing ratio cabinet 24 and are connected with outside weld console 25 respectively; In interior weldering lifting column 4, interior weldering lifting cantilever 5,7,3 spiral submerged arc internal welding machine heads 8 of 6,4 vertical masonry joint submerged arc internal welding machine heads of interior weldering three-dimensional adjusting mechanism, TIG/MIG combination internal welding machine head 9, multi-functional welding chassis 10, TIG, in welding machine 13, the interior welding machine 14 of MIG, TIG/MIG, in weldering water cooling box 16, MIG, weldering wire-feed motor 17, the interior weldering of SAW wire-feed motor 18, welding flux feeding device 22, flux collection system 23, gas are protected weldering gas mixing ratio cabinet 24 and are connected with interior weldering console 26 respectively.
As shown in Figures 3 to 5, outside weld main frame 2 mainly comprises the structures such as the traversing base 2-1 of outside weld main frame, outside weld main frame column 2-2, outside weld main frame weldering cantilever 2-3, the outside weld host driven 2-4 of mechanism, base line slideway 2-5, base screw-nut 2-6, column line slideway 2-7, column screw-nut 2-8.Wherein, outside weld main frame column 2-2 is installed on the traversing base 2-1 of outside weld main frame top, and connects with base line slideway 2-5 and base screw-nut 2-6, and outside weld main frame column 2-2 can move forward and backward above the traversing base 2-1 of outside weld main frame; Outside weld main frame weldering cantilever 2-3 is installed on outside weld main frame column 2-2 front, and connects with column line slideway 2-7 and column screw-nut 2-8, and outside weld main frame weldering cantilever 2-3 can move up and down in outside weld main frame column 2-2 front; The outside weld host driven 2-4 of mechanism is installed on respectively outside weld main frame traversing base 2-1 rear and outside weld main frame column 2-2 top.Described outside weld main frame 2 supports 6 submerged arc outside welds of multiple degrees of freedom and the outer welding head 3 of MAG for connecting, and can carry out the coarse adjustment in level-vertical direction to welding position.
For meeting the adjustment requirement of location parameter, welding torch position parameter and the welding procedure of welding head outside butt plates welding, the outside weld of vertical masonry joint/spiral seam welded tube, the compound welded tube of stainless steel, the multi-functional multi-wire submerged-arc welder that the present embodiment provides comprises 6 submerged arc outside welds of multiple degrees of freedom and the outer welding head 3 of MAG.
As shown in Fig. 3 to Fig. 7, the outer welding head 3 of 6 submerged arc outside welds of described multiple degrees of freedom and MAG comprises outer welding head horizontal rotary mechanism 3-1, outer welding head rolls the 3-2 of mechanism, the outside weld WidFin 3-3 of travel mechanism, the outside weld HeiFin 3-4 of travel mechanism, outside weld fine setting drives servomotor 3-5, 6 SAW outside weld wire feeder arc support 3-6, 6 SAW outside weld wire-feed motor mechanism for installing 3-7, 6 SAW outside weld wire-feed motor 3-8, MAG outside weld wire-feed motor 3-9, 6 outer welding wire straightener 3-10 of SAW, the outer welding wire straightener 3-11 of MAG, 6 SAW outside weld wire feed bourdon tube 3-12, MAG outside weld wire feed bourdon tube 3-13, 6 SAW outside weld welding gun 3-14, MAG outside weld water cooled welding torch 3-15, 6 outer welding mechanisms of SAW turn type connector 3-16, the outer welding mechanism connector 3-17 of MAG, inclination angle and spacing adjusting mechanism 3-18 before and after 6 SAW outside weld welding guns, MAG outside weld upright position governor motion 3-19, submerged-arc welding laser tracking and monitoring system 3-20, solder flux small powder bucket 3-21, flux restoring mouth 3-22.
Wherein, the 3-3 of outside weld WidFin travel mechanism is mounted on outer welding head horizontal rotary mechanism 3-1 top; The outside weld HeiFin 3-4 of travel mechanism is mounted on the outside weld WidFin 3-3 of travel mechanism top; Outside weld fine setting drives servomotor 3-5 to be mounted on respectively the rear of the outside weld WidFin 3-3 of travel mechanism and the top of the outside weld HeiFin 3-4 of travel mechanism; The outer welding head inclination 3-2 of mechanism is mounted on the front of the outside weld HeiFin 3-4 of travel mechanism; 6 SAW outside weld wire feeder arc support 3-6 turn type connector 3-16 by the outer welding mechanism of 6 SAW and are connected with the outer welding head inclination 3-2 of mechanism; 6 SAW outside weld wire-feed motor 3-8 are connected by 6 SAW outside weld wire-feed motor mechanism for installing 3-7 and 6 SAW outside weld wire feeder arc support 3-6; Before and after 6 SAW outside weld welding guns, inclination angle and spacing adjusting mechanism 3-18 are mounted on the outer welding mechanism of 6 SAW and turn the below of type connector 3-16; The outer welding wire straightener 3-10 of 6 SAW, 6 SAW outside weld wire feed bourdon tube 3-12 are mounted between 6 SAW outside weld wire-feed motor 3-8 and 6 SAW outside weld welding guns inclination angles, front and back and spacing adjusting mechanism 3-18 successively; 6 SAW outside weld welding gun 3-14 are arranged on 6 SAW outside weld welding guns inclination angles, front and back and spacing adjusting mechanism 3-18 front, and are connected with 6 SAW outside weld wire feed bourdon tube 3-12; Solder flux small powder bucket 3-21 is fixed on the front left side of submerged-arc welding laser tracking and monitoring system 3-20; Flux restoring mouth 3-22 is mounted on the forward right side of 6 SAW outside weld welding guns inclination angles, front and back and spacing adjusting mechanism 3-18; MAG outside weld wire-feed motor 3-9 is mounted on the outer welding mechanism of 6 SAW and is turned the left side of type connector 3-16 by the outer welding mechanism connector 3-17 of MAG; The outer welding wire straightener 3-11 of MAG is mounted on MAG outside weld wire-feed motor 3-9 top; MAG outside weld wire feed bourdon tube 3-13, MAG outside weld water cooled welding torch 3-15 are arranged on MAG outside weld wire-feed motor 3-9 below successively, and are connected on the left of turning type connector 3-16 by MAG outside weld upright position governor motion 3-19 and 6 outer welding mechanisms of SAW.
As shown in Figure 8 and Figure 9, described interior weldering lifting column 4 comprises interior weldering lifting column frame 4-1, interior weldering upright post base 4-2, interior weldering lifting column driving mechanism 4-3.Wherein, interior weldering lifting column frame 4-1 is fixed on interior weldering upright post base 4-2 top; Interior weldering lifting column driving mechanism 4-3 is installed on respectively upper left side and the position, upper right side of interior weldering lifting column frame 4-1.
As shown in Figure 8 and Figure 9, described interior weldering lifting cantilever 5 comprises interior weldering lifting cantilever beam 5-1, interior weldering lifting cantilever left side slide mechanism 5-2, interior weldering lifting cantilever right side slide mechanism 5-3.Wherein, interior weldering lifting cantilever beam 5-1 is fixed on interior weldering lifting column frame 4-1 by interior weldering lifting cantilever left side slide mechanism 5-2 and interior weldering lifting cantilever right side slide mechanism 5-3.
As shown in Figure 8 and Figure 9, described interior weldering three-dimensional adjusting mechanism 6 comprises interior weldering three-dimensional adjusting mechanism X-axis balladeur train 6-1, interior weldering three-dimensional adjusting mechanism Y-axis balladeur train 6-2, interior weldering three-dimensional adjusting mechanism Z axis balladeur train 6-3.Wherein, interior weldering three-dimensional adjusting mechanism X-axis balladeur train 6-1, interior weldering three-dimensional adjusting mechanism Y-axis balladeur train 6-2, interior weldering three-dimensional adjusting mechanism Z axis balladeur train 6-3 are fixed on the left side of interior weldering lifting cantilever beam 5-1 successively.
The requirement of adjusting for meeting location parameter, welding torch position parameter and the welding procedure of welded in butt weld pipe head, the disclosed multi-functional multi-wire submerged-arc welder of the present embodiment is provided with 4 vertical masonry joint submerged arc internal welding machine heads 7.As shown in Figure 8 and Figure 9, described 4 vertical masonry joint submerged arc internal welding machine heads 7 comprise interior welding gun 7-1,4 interior welding guns inclination angle, front and back and spacing adjusting mechanism 7-2,4 interior welding gun follower 7-3,4 interior laser indicator lamp 7-4,4 vertical masonry joint submerged arc inner welding video device 7-5,4 interior solder flux feeding hopper 7-6,4 interior flux restoring mouth 7-7, the 4 interior soldered fishplate bar 7-8 of vertical masonry joint submerged arcs of welding of vertical masonry joint submerged arcs of welding of vertical masonry joint submerged arcs of welding of vertical masonry joint submerged arcs of welding of vertical masonry joint submerged arcs of welding of vertical masonry joint submerged arcs of welding of 4 vertical masonry joint submerged arcs.
Wherein, in 4 vertical masonry joint submerged arcs, weldering welding gun 7-1 is arranged on the interior weldering of 4 vertical masonry joint submerged arcs welding gun inclination angle, front and back and spacing adjusting mechanism 7-2; In 4 vertical masonry joint submerged arcs, weldering welding gun follower 7-3 is installed on weldering welding gun inclination angle, front and back and spacing adjusting mechanism 7-2 rear in 4 vertical masonry joint submerged arcs; In 4 vertical masonry joint submerged arcs, weldering flux restoring mouth 7-7 is fixed on the front of welding welding gun inclination angle, front and back and spacing adjusting mechanism 7-2 in 4 vertical masonry joint submerged arcs; In 4 vertical masonry joint submerged arcs, in weldering laser indicator lamp 7-4,4 vertical masonry joint submerged arc inner welding video device 7-5,4 vertical masonry joint submerged arcs, weldering solder flux feeding hopper 7-6 are fixed in 4 vertical masonry joint submerged arcs before and after weldering welding gun and weld between welding gun follower 7-3 in inclination angle and spacing adjusting mechanism 7-2 and 4 vertical masonry joint submerged arcs; In 4 vertical masonry joint submerged arcs, soldered fishplate bar 7-8 is fixed on 4 vertical masonry joint submerged arc internal welding machine head 7 rears, for connecting 4 vertical masonry joint submerged arc internal welding machine heads 7 and interior weldering three-dimensional adjusting mechanism 6.
The multi-functional multi-wire submerged-arc welder of the present embodiment is provided with 3 spiral submerged arc internal welding machine heads 8, can meet the adjustment requirement of Inside Welding of Spiral Submerged Arc Welded Pipe handpiece, welding torch position parameter and welding procedure.As shown in figure 10, described 3 spiral submerged arc internal welding machine heads 8 comprise weldering welding gun 8-1 in 3 spiral submerged arcs, weldering solder flux ship 8-2 in 3 spiral submerged arcs, weldering welding gun inclination angle, front and back and spacing adjusting mechanism 8-3 in 3 spiral submerged arcs, weldering welding-torch horizontal rotating mechanism 8-4 in 3 spiral submerged arcs, in 3 spiral submerged arcs, weldering welding gun rolls the 8-5 of mechanism, weldering laser indicator lamp 8-6 in 3 spiral submerged arcs, 3 spiral submerged arc inner welding video monitor 8-7, weldering solder flux feeding hopper 8-8 in 3 spiral submerged arcs, weldering flux restoring mouth 8-9 in 3 spiral submerged arcs, soldered fishplate bar 8-10 in 3 spiral submerged arcs.
Wherein, in 3 spiral submerged arcs, weldering welding gun 8-1 is arranged on the interior weldering of 3 spiral submerged arcs welding gun inclination angle, front and back and spacing adjusting mechanism 8-3; In 3 spiral submerged arcs, weldering solder flux ship 8-2 is fixed on weldering welding gun 8-1 outside in 3 spiral submerged arcs; In 3 spiral submerged arcs, weldering welding gun inclination angle, front and back and spacing adjusting mechanism 8-3 are connected by welding welding-torch horizontal rotating mechanism 8-4 in the welding gun inclination 8-5 of mechanism and 3 spiral submerged arcs in 3 spiral submerged arcs; In 3 spiral submerged arcs, weldering flux restoring mouth 8-9 is arranged on the front of welding welding gun inclination angle, front and back and spacing adjusting mechanism 8-3 in 3 spiral submerged arcs; The 3 interior weldering of spiral submerged arcs laser indicator lamp 8-6,3 spiral submerged arc inner welding video monitor 8-7, the 3 interior weldering of spiral submerged arcs solder flux feeding hopper 8-8 installations are arranged on successively in the interior weldering of 3 spiral submerged arcs welding gun inclination angle, front and back and spacing adjusting mechanism 8-3 and 3 spiral submerged arcs and weld between cantilever connecting plate 8-10; In 3 spiral submerged arcs, soldered fishplate bar 8-10 is fixed on 3 spiral submerged arc internal welding machine head 8 rears, for connecting 3 spiral submerged arc internal welding machine heads 8 and interior weldering three-dimensional adjusting mechanism 6.
As shown in figure 11, described TIG/MIG combination internal welding machine head 9 comprises soldered fishplate bar 9-9 in MIG water cooled welding torch 9-1, MIG welding gun elevating mechanism 9-2, MIG welding gun oscillation mechanism 9-3, TIG water cooled welding torch 9-4, TIG wire-feeding pipe 9-5, TIG weldering wire-feed motor 9-6, TIG welding gun oscillation mechanism 9-7, TIG welding gun arc voltage governor motion 9-8, TIG/MIG.
Wherein, MIG water cooled welding torch 9-1 is connected by MIG welding gun elevating mechanism 9-2 and MIG welding gun oscillation mechanism 9-3; TIG water cooled welding torch 9-4 is connected by TIG welding gun arc voltage governor motion 9-8 and TIG welding gun oscillation mechanism 9-7; TIG weldering wire-feed motor 9-6 is arranged on TIG water cooled welding torch 9-4 rear; TIG wire-feeding pipe 9-5 is arranged between TIG weldering wire-feed motor 9-6 and TIG water cooled welding torch 9-4, and is connected with TIG weldering wire-feed motor 9-6 front end; In TIG/MIG, soldered fishplate bar 9-9 is at TIG/MIG combination internal welding machine head 9 rears, for connecting TIG/MIG combination internal welding machine head 9 and interior weldering three-dimensional adjusting mechanism 6.
As shown in Figure 12 and Figure 13, described multi-functional welding chassis 10 comprises plate welding workbench 10-1, steel pipe support and the 10-2 of rotating roller mechanism, steel pipe anti-channeling hold-down mechanism 10-3, welding conduction brush group 10-4, chassis vehicle frame 10-5, chassis driving mechanism 10-6, rotating roller driving mechanism 10-7, air cylinder group 10-8, trolley running running roller 10-9.
Wherein, steel pipe anti-channeling hold-down mechanism 10-3 is fixed on the two ends, left and right of chassis vehicle frame 10-5; Welding conduction brush group 10-4 is arranged on chassis vehicle frame 10-5 zone line position; Air cylinder group 10-8 is arranged on respectively steel pipe anti-channeling hold-down mechanism 10-3 left and right sides and the below of welding conduction brush group 10-4, can drive steel pipe anti-channeling hold-down mechanism 10-3 and welding conduction brush group 10-4 motion; Steel pipe support and the 10-2 of rotating roller mechanism are arranged between steel pipe anti-channeling hold-down mechanism 10-3 and welding conduction brush group 10-4; Rotating roller driving mechanism 10-7 and steel pipe support and the 10-2 of rotating roller mechanism are connected, and can drive steel pipe support and the 10-2 of rotating roller mechanism to rotate in a circumferential direction; Chassis driving mechanism 10-6 is fixed on the right back of chassis vehicle frame 10-5, can drive multi-functional welding chassis 10 to move on welded rails 27; Plate welding workbench 10-1 is arranged on chassis vehicle frame 10-5 zone line and welding conduction brush group 10-4 top, while carrying out steel-pipe welding, plate welding workbench 10-1 can be hung away; Trolley running running roller 10-9 is arranged on chassis vehicle frame 10-5 below.
The multi-functional multi-wire submerged-arc welder that the present embodiment provides, can realize the crin MAG/MIG prewelding of spirally welded pipe, out-seam monofilament, mariages and 3-6 submerged welding processes, inseam monofilament, mariages and 3 submerged welding processes; All welding procedures all can complete on this welder above, and plate/wall thickness that this welder welding by both sides once welds can reach 50mm, welding procedure can save a large amount of manpower financial capacities, consuming time short, efficiency is high.In addition,, in welding, can realize real-time detection and the record of bevel for welding size, welding parameter and welding position, and welding parameter can be adjusted automatically with bevel for welding size.
Embodiment 2:
Multi-functional multi-wire submerged-arc welder described in employing embodiment 1 carries out weldering in Φ 1422 × 21.4mm spiral seam pipe.
Molded good spiral seam tubing section is put in to steel pipe support and rotates on the 10-2 of Kun mechanism, end face and inwall at steel pipe two ends adopt steel pipe anti-channeling hold-down mechanism 10-3 will treat that Coiling Welded Pipe compresses, and regulation and control steel pipe support rotates to lower plane center in steel pipe with the rotation 10-2 of Kun mechanism by spiral steel pipe bevel for welding.And at the left end of interior weldering three-dimensional adjusting mechanism Z axis balladeur train 6-3,3 spiral submerged arc internal welding machine heads 8 are installed.
Regulation and control multi-functional welding chassis 10, interior weldering lifting column 4 and interior weldering lifting cantilever 5 reach 3 spiral submerged arc internal welding machine heads 8 on steel duct groove center line, and make rifle head apart from the about 30-50mm of inner surface of tube body horizontal level.
Require to weld welding gun in welding-torch horizontal rotating mechanism 8-4 and 3 spiral submerged arcs in 3 spiral submerged arcs of adjusting according to Welding Process Design and roll the 8-5 of mechanism, 3 spiral submerged arc internal welding machine heads 8 are horizontally rotated to approximately 69.9 °, vertical roll approximately 5.5 ° of rotations, guarantee in 3 spiral submerged arcs weldering welding gun 8-1 every welding gun all in root face plane.Simultaneously, inclination angle and spacing adjusting mechanism 8-3 before and after the interior weldering of regulation and control three-dimensional adjusting mechanism Y-axis balladeur train 6-2, interior weldering three-dimensional adjusting mechanism Z axis balladeur train 6-3 and the 3 interior weldering of vertical masonry joint submerged arcs welding guns, welding wire is adjusted to groove center, and require welding wire eccentric throw, inclination angle, elongation and distance between weldingwires to be transferred to prescribed limit according to Welding Process Design.
Start digitalized S AW welding machine 11, set welding current and voltage by operating the man-machine interface of interior weldering console 26, select multi-functional welding chassis 10 operate to straight line moving time, steel pipe support and the rotation 10-2 of Kun mechanism drive the steel pipe synthetic spiral seam mode that rotates in a circumferential direction to walk.
Open weldering laser indicator lamp 8-6,3 spiral submerged arc inner welding video monitor 8-7 in welding flux feeding device 22,23,3 spiral submerged arcs of flux collection system, starting welding button welds, welding process detects and records real-time change and the welding position of welding parameter automatically, and by the position depending on welding laser indicator lamp 8-6 in 3 spiral submerged arcs of 3 spiral submerged arc inner welding video monitor 8-7 observation, can control interior weldering three-dimensional adjusting mechanism X-axis balladeur train 6-1 simultaneously and adjust welding position.
Embodiment 3:
Multi-functional multi-wire submerged-arc welder described in employing embodiment 1 carries out the outside weld of Φ 1422 × 21.4mm spiral seam pipe.
After being inside soldered into, controlling multi-functional welding chassis 10 steel pipe transmission is arrived to 6 submerged arc outside welds of multiple degrees of freedom and the outer welding head of MAG 3 belows, and regulate steel pipe support and the rotation 10-2 of Kun mechanism that bevel for welding is rotated to plane on steel pipe.
The traversing base 2-1 of outside weld main frame, the outside weld main frame column 2-2 of regulation and control outside weld main frame 2, outside weld main frame weldering cantilever 2-3,6 submerged arc outside welds of multiple degrees of freedom and outer welding head 3 transfers of MAG are arrived near groove center, and make the rifle head of 6 SAW outside weld welding gun 3-14 apart from the about 30mm~50mm of spiral seam pipe.
Require to regulate outer welding head horizontal rotary mechanism 3-1 and outer welding head to roll the 3-2 of mechanism according to Welding Process Design, 6 submerged arc outside welds of multiple degrees of freedom and the outer welding head 3 of MAG are horizontally rotated to approximately 69.9 °, vertical roll approximately 5.5 ° of rotations, guarantee 6 SAW outside weld welding gun 3-14 every welding gun all in root face plane.Simultaneously, inclination angle and spacing adjusting mechanism 3-18 before and after the regulation and control outside weld WidFin 3-3 of travel mechanism, the outside weld HeiFin 3-4 of travel mechanism and 6 SAW outside weld welding guns, welding wire is adjusted to groove center, and require welding wire eccentric throw, inclination angle, elongation and distance between weldingwires to be transferred to prescribed limit according to Welding Process Design.
Start digitalized S AW welding machine 11, man-machine interface by operation outside weld console 25 sets welding current and voltage, select multi-functional welding chassis 10 operate to straight line moving time, steel pipe support and the rotation 10-2 of Kun mechanism drive the steel pipe synthetic spiral seam mode that rotates in a circumferential direction to walk.
Open welding flux feeding device 22, flux collection system 23 and submerged-arc welding laser tracking and monitoring system 3-20, the welding button that starts outside weld console 25 welds.In welding process, real-time change and welding position that outside weld console 25 and submerged-arc welding laser tracking and monitoring system 3-20 could detect and record bevel for welding size, welding parameter automatically.
Welding parameter sees the following form:
Above content is in conjunction with concrete preferred embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by submitted to claims.

Claims (5)

1. a spiral submerged welded pipe procedure qualification method, is characterized in that, in accordance with the following steps:
Make tubing section along circumference rotation and along the translation of tubing section axis direction, by rotating in a circumferential direction and the synthetic spiral motion of axis direction translation; Make welding gun on tubing section spiral line, carry out outside weld in multiple degrees of freedom multi-wire submerged-arc; Adopt laser tracking system, digital welding power source system, welding parameter Real-time Collection and register system, AC servo drive system, in real time detect and the welding position, welding parameter, groove size and the welding bead pattern that record weld seam, realize spiral submerged welded pipe procedure qualification.
2. spiral submerged welded pipe procedure qualification method as claimed in claim 1, is characterized in that: described spiral seam pipe segment length 2000-2400mm, and caliber is Φ 508mm-Φ 1422mmm, wall thickness is less than or equal to 25.4mm.
3. spiral submerged welded pipe procedure qualification method as claimed in claim 1, is characterized in that: the described speed that rotates in a circumferential direction and axial translation speed depend on the spiral angle of helix speed of welding and steel pipe.
4. spiral submerged welded pipe procedure qualification method as claimed in claim 1, is characterized in that: the rotatablely moving of rectilinear motion that described multiple degrees of freedom is horizontal direction, horizontal plane, the rectilinear motion of vertical direction and rotatablely moving of vertical plane.
5. spiral submerged welded pipe procedure qualification method as claimed in claim 1, is characterized in that: described multi-wire submerged-arc is 3 of outside weld mariages, interior welderings.
CN201410100690.8A 2014-03-15 2014-03-15 A kind of spiral submerged arc steel-pipe welding procedure qualification method CN103831509B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315420A (en) * 1971-06-04 1973-05-02 Raichuk J I Method for the electric-arc welding of tubular workpieces
US3739134A (en) * 1971-12-29 1973-06-12 Canada Steel Co Process for tack welding and finishing spiral weld pipe
JP2004017134A (en) * 2002-06-20 2004-01-22 Sumikin Daikeikoukan Kk Method for manufacturing spiral welded steel pipe
CN102825430A (en) * 2012-09-10 2012-12-19 方晓东 Welding method for welding steel pipe spirally
CN202726282U (en) * 2012-06-20 2013-02-13 江苏玉龙钢管股份有限公司 Butt outside-weld automatic welding device for spiral welded steel pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315420A (en) * 1971-06-04 1973-05-02 Raichuk J I Method for the electric-arc welding of tubular workpieces
US3739134A (en) * 1971-12-29 1973-06-12 Canada Steel Co Process for tack welding and finishing spiral weld pipe
JP2004017134A (en) * 2002-06-20 2004-01-22 Sumikin Daikeikoukan Kk Method for manufacturing spiral welded steel pipe
CN202726282U (en) * 2012-06-20 2013-02-13 江苏玉龙钢管股份有限公司 Butt outside-weld automatic welding device for spiral welded steel pipe
CN102825430A (en) * 2012-09-10 2012-12-19 方晓东 Welding method for welding steel pipe spirally

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
唐子金等: "西气东输二线工程用X80级埋弧焊管的试制", 《焊管》 *

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