CN105458475B - A kind of twin wire automatic welding hidden arc welding device and its localization method and automatic seam tracking method - Google Patents
A kind of twin wire automatic welding hidden arc welding device and its localization method and automatic seam tracking method Download PDFInfo
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- CN105458475B CN105458475B CN201610021329.5A CN201610021329A CN105458475B CN 105458475 B CN105458475 B CN 105458475B CN 201610021329 A CN201610021329 A CN 201610021329A CN 105458475 B CN105458475 B CN 105458475B
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of twin wire automatic welding hidden arc welding device being built in helix tube molding machine, including primary location structure (1), wheelbase corner adjustment mechanism (2), soldering set adjustment mechanism (3) and welding gun (4), the soldering set adjustment mechanism (3) includes cuboid fixed frame (3.1), soldering set elevating mechanism (3.2), soldering set right-left adjusting device (3.3) and soldering set angle regulator (3.4), and the soldering set elevating mechanism (3.2) is fixed on the cuboid fixed frame (3.1)；The soldering set right-left adjusting device (3.3) is fixed on the wheelbase corner adjustment mechanism (2), axial linear drives (2.2) are fixed with welding gun support (2.1), the bracket at corner (2.3) is fixed in the axial linear drives；The twin wire automatic welding hidden arc welding device being built in helix tube molding machine is easy to position, it is easy to accomplish soldering joint automatic tracking.
Description
Technical field
The invention belongs to helix tube welding technology field, and in particular to a kind of Double-wire submerged arc welding apparatus and its localization method and
Automatic seam tracking method.
Background technology
Spiral welded pipe has inside and outside two spiral welds, plays increase steel pipe and rigidly acts on, puies forward the intensity of steel pipe
It is high.The stress that spiral welded pipe weld seam is born reduces 10-25% than the straight welded pipe welding-seam of same diameter.Due to be spiral into
Shape, the pipe of production department are directly spent, and accurate size, deviation is usually no more than 0.12%.In spiral welded pipe production process, monofilament
Submerged arc welding machine has simple to operate, dependable performance, moderate, has higher welding efficiency and preferable welding quality, but
It is that monofilament bonding wire energy is small, cooling velocity is fast, especially the north cold winter, easily produces weld defect, speed of welding is slow,
And improve speed of welding and be difficult to ensure that weldquality, low production efficiency that time-consuming.Advised with the product of two-sided Seam of SAW Spiral Steel Pipe
Lattice wall thickness constantly increases, and the welding of inside and outside weld seam also progressively increases to mariages or three from original monofilament.Wire submerged arc welding machine is adopted
With 2 independent sources of welding current, for 2 arcings in same molten bath, longitudinal separation is no more than 40mm, and first electric arc is formed
Fusion penetration, by workpiece penetration；Second electric arc forms capping, and welding is once completed.It is characterized in：(1) save, compared to single electric arc
Weldering, the welding of high speed effectively reduce energy loss of the workpiece because of workpiece caused by reheating and solder flux；(2) at a high speed,
The molten bath that twin arc is formed in welding is longer, and metal time when it consolidates melt is longer, relative to cooling speed during single electric arc
Degree and Thermal Cycling are slower, and the trace element of weld seam has the long period to be diffused, and the eutectic of low melting point is because of degree of supercooling
Reduce and reduce component segregation.(3) in the weld job of high speed, single electric arc is led because energy density converges
Cause electric arc penetration power extremely strong, fusing metal has little time to spread out and makes weld seam that tapered cross-section be presented, and this point is welded in double-arc tournaments
Under conditions of improved.
In existing wire submerged arc welding machine, there is several key issues：1) positioning of solder joint and weld seam；2) parameter is adjusted
It is whole, the adjustment at welding wire inclination angle；The adjustment of distance between weldingwires；The adjustment of electrode extension, keep solder flux piling height；3) dynamically with
Track weld seam.Above-mentioned key issue does not form a suitable simple structure to solve for the purpose of " operation is most convenient, cost is minimum "
Certainly.
The CN202180825U of Beijing Zhong electricity Hua strong welds Engineering Co., Ltd double wire hidden arc welding equipment, servo cross are slided
Frame 21 is fixedly mounted by base, though above and below energy and moving left and right, can not be moved forward and backward, and can be only installed at existing spiral shell
The both sides of welded pipe units are revolved, operation inconvenience, can not be organically blended with SSAW pipe unit.Rotation angle mechanism 10,11 is close to each other
Block with fixed angle so that corner apart from binding with adjusting, adjustment inconvenience；Flux delivery mouth separates, and has preceding welding gun to weld
Agent aids in delivery nozzle 5 and the main delivery nozzle 13 of solder flux, adds solder flux holding structure and welds the difficulty of vibrational structure.
Britain GB794275A discloses a kind of mariages welder, and its pad localization is slided to adjust by sleeve on bar 29
Position is adjusted, welding gun 21,23 is articulated on bar 24, and bar 24 is connected on cross bar by half arc button, and the cross bar is connected to frame bars
On 17.It is it is symmetrical, it is manually adjustable, but lack automation regulation architecture basics.
Design the Double-wire submerged arc welding apparatus on a kind of helix tube molding machine, both met welding technology parameter adjustment it is basic
It is required that also meeting the positioning of the weld seam and solder joint of special diameter spiral welded pipe, while it is also easy to realize the dynamic tracking of weld seam, knot
Structure simply positions conveniently, satisfactorily resolves above-mentioned at least two key issue, is the problem of designer really.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of spiral submerged arc twin wire automatic welding welder and its determined
Position method and automatic seam tracking method.
The present invention is achieved in that a kind of twin wire automatic welding hidden arc welding device being built in helix tube molding machine, including
Primary location structure, wheelbase corner adjustment mechanism, soldering set adjustment mechanism and welding gun, the welding gun are fixed on the soldering set adjustment machine
On structure (3), the primary location structure includes locating rack, track and is fixed bolt, and the locating rack point midway is provided with
Symmetry axis；The locating rack is axisymmetrically provided with crossing the vertical plane (Л) perpendicular to locating rack of symmetry axis for symmetrical plane
Walking mechanism；The locating rack is adjustably secured the rail groove in the equipment portal frame of the helix tube molding machine by track
In, and fixed by being fixed bolt；
The soldering set adjustment mechanism includes fixed frame, soldering set elevating mechanism, soldering set right-left adjusting device and soldering set corner
Adjusting apparatus, the fixed frame are fixed on the locating rack, and the soldering set elevating mechanism is fixed on the fixed frame；
The soldering set right-left adjusting device is fixed on the wheelbase corner adjustment mechanism, and the soldering set right-left adjusting device connects soldering set
Angle regulator, welding gun is fixed with the soldering set angle regulator；The welding gun is two, and the welding gun is set respectively
There is the welding wire of different-diameter, one is AC power, and another is dc source；
The wheelbase corner adjustment mechanism is fixedly mounted on the soldering set elevating mechanism；The wheelbase corner adjustment mechanism
Including welding gun support, axial linear drives and bracket at corner, the welding gun support is fixed on the soldering set elevating mechanism, is being welded
Axial linear drives are fixed with gun carriage, the bracket at corner is fixed in the axial linear drives；
Soldering set right-left adjusting device using cross symmetry axis the vertical plane perpendicular to locating rack as symmetrical plane axisymmetrically
On the bracket at corner, the bracket at corner can pivot certain angle and position, and the pivot is located at excessively symmetrical
On the vertical plane perpendicular to locating rack of axle.
Further, the walking mechanism be using cross symmetry axis the vertical plane perpendicular to locating rack as symmetrical plane,
Slide rail is axisymmetrically provided with locating rack, disk roller bearing is sliding combined with slide rail, the disk roller bearing is provided with walking roller
Wheel.
Further, the soldering set elevating mechanism includes lifting motor, lifting decelerator and elevating screw, the lifting electricity
The output shaft of machine connects elevating screw by lifting decelerator；The elevating screw drives lifting nut, and the lifting nut is consolidated
Surely the welding gun support is connected.
Further, the soldering set right-left adjusting device includes adjusting bracket, and the adjusting bracket is provided with adjusting screw,
Threaded engagement has welding gun slide on the adjusting screw；The welding gun slide is provided with adjusting nut, and adjusting screw one end fits exist
In adjusting nut, the other end is fixed in the adjusting bracket and provided with regulation handle or provided with left and right adjusting servomotor.
Further, the axial linear drives include leading screw, nut and linear drives servomotor, the linear drives
Servomotor drives the leading screw rotation.
Further, the soldering set angle regulator includes corner seat and angular servo-motor, the corner seat pivot joint
On the welding gun slide, the welding gun is fixed on corner seat, and angular servo-motor drives the corner seat to turn around drive-connecting shaft
It is dynamic.
Further, the bracket at corner includes pivot, bearing, rotating disc, angular transducer, rotating servo motor, institute
State adjusting bracket to be located on the rotating disc, the rotating servo motor driving rotating disc and the adjusting bracket can be with certain
Angle is around pivoting.
A kind of localization method of the twin wire automatic welding hidden arc welding device being built in helix tube molding machine,
Including primary positioning step, when the spiral steel pipe of a new model needs production, the locating rack is adjusted described
Position in the equipment portal frame chute of helix tube molding machine so that pivot by by the weldering spiral steel pipe center of circle so that it is described from
Dynamic Double-wire submerged arc welding apparatus positions in Y-direction, position of the adjustment walking disk roller on slide rail so that described two walking disk rollers and weldering
Circular arcs where 3 points of intersection point of silk with it is described by weldering spiral steel pipe concentric；Locating rack is arranged on equipment portal frame so that weldering
The positioning of rifle is positioned by means of portal frame X, Z-direction, by the swing pivot of helix tube molding machine right through by weldering spiral
The center of circle of steel pipe, to the twin wire automatic welding hidden arc welding device, how primary positioning has been carried out in the positioning adjustment of centering weld seam.
Further, in addition to two-stage positioning step, after primary positioning is completed, the wheelbase corner adjustment mechanism is set
Corner with it is described consistent by the angle between the vertex tangent of weldering spiral steel pipe spiral weld and steel pipe axis；Adjust soldering set liter
Descending mechanism, soldering set right-left adjusting device and soldering set angle regulator so that the front and rear centering weld seam respectively of preceding welding wire, rear welding wire is simultaneously
With certain distance, welding wire anchor point is adjusted so that on preceding welding wire, rear welding wire and the straight line of welding wire anchor point three points one, and weld
Silk anchor point centering weld seam, completes two-stage positioning.
The above-mentioned twin wire automatic welding hidden arc welding device being built in helix tube molding machine carries out primary positioning and two-stage positioning, adjusts
Perfect square just, is easy to the realization of dynamic seam tracking system.
A kind of automatic seam tracking method for the twin wire automatic welding hidden arc welding device being built in helix tube molding machine,
Vertical plane on locating rack perpendicular to locating rack is provided with tracking slide rail, the sliding block rail and by weldering spiral steel pipe
Axis X axis it is parallel；Sliding block is arranged on the slide rail, and actual welds tracking transducer, institute are provided with below the sliding block
Actual actual welds tracking transducer is stated to be vertically projected to by the actual welds anchor point O on the weld seam of weldering spiral steel pipe5(x5,
y5)；The sliding block is driven by tracking servo motor；
Welding wire locator is provided with preceding welding wire side, the welding wire locator is vertically projected to by the welding wire of weldering spiral steel pipe
Anchor point O4(x4, y4)；
The localization method of the twin wire automatic welding hidden arc welding device being built in helix tube molding machine completes primary positioning step
After rapid and two-stage positioning step, monitoring welding wire anchor point and by the position relationship between the weld seam of weldering spiral steel pipe at any time, with quilt
The axis for welding spiral steel pipe is X-axis, with certain frequency detection welding wire anchor point O4(x4, y4) and weld and HAZ point O5(x5, y5), meter
Calculate welding wire anchor point O4(x4, y4) and actual welds anchor point O5(x5, y5) between X-direction distance, delta dx=x5-x4；
Make the following judgment：
If 1) Δ dx=0 is continued to monitor；
If 2) Δ dx＞ 0, then start linear drives servomotor and move the rotating disc 2.3.3 along X-direction negative sense
Distance | Δ dx|；
The automatic seam tracking method of the twin wire automatic welding hidden arc welding device being built in helix tube molding machine, due to first
Level positioning and the basic role of two-stage positioning so that tracking weld seam need to only be sewn on axially the error of i.e. X-direction with tracking welding, and
Adjustment linear drives in real time so that preceding welding wire, rear welding wire are moved forward or rearward oneself of the i.e. achievable weld seam of certain distance together
Motion tracking so that soldering joint automatic tracking becomes simple easy.
The present invention realizes spiral Double Wire Welding there is several keys to ask by the mutual promoting action of following technical spirit
Topic：1) positioning of solder joint and weld seam；2) parameter adjustment, the adjustment at welding wire inclination angle；The adjustment of distance between weldingwires；Electrode extension
Adjustment, keep solder flux piling height；3) dynamic tracking weld seam.
(1) primary location structure, the pivot 2.4 between the preceding welding wire 5.1 of guarantee, rear welding wire 5.2 are located at weld seam circular arc most
Summit；
(2) the wheelbase corner adjustment mechanism, two-stage positioning is completed, ensures the corner α of the wheelbase corner adjustment mechanism 2
With it is described consistent by the angle between the vertex tangent of Coiling Welded Pipe spiral weld and steel pipe axis；
On the basis of correct position, soldering set adjustment mechanism ensures being adjusted in place for welding condition, ensures correct
Position while welding forms qualified weld seam；
(3) on the basis of correct position, weld joint tracking only remain X-axis tracking, soldering set with weld seam adjust automatically also only
Need position of the axial linear drives adjustment bracket at corner in X-axis, simplify weld seam from motion tracking.
The twin wire automatic welding hidden arc welding device being built in helix tube molding machine is easy to position, it is easy to accomplish weld seam is automatic
Tracking.
The spiral submerged arc twin wire automatic welding welder, cool time is extended, weld seam matter is ensure that when improving speed of welding
Amount, reduces weld defect, improves working environment.Created favorable conditions for next process, reduce repair welding amount and save
Material resources, financial resources, manpower reduce manufacturing cost.
Brief description of the drawings
Fig. 1 is the front view of spiral submerged arc twin wire automatic welding welder of the present invention.
Fig. 2 is the top view of spiral submerged arc twin wire automatic welding welder of the present invention.
Fig. 3 is the left view of spiral submerged arc twin wire automatic welding welder of the present invention.
Fig. 4 is the welding gun front view of spiral submerged arc twin wire automatic welding welder of the present invention.
Fig. 5 is the soldering joint automatic tracking schematic diagram of spiral submerged arc twin wire automatic welding welder of the present invention.
Reference in above-mentioned figure：
1st, primary location structure, 2, wheelbase corner adjustment mechanism, 3, soldering set adjustment mechanism, 4, welding gun, 5 welding wires, 16 is symmetrical
Axle
Л crosses the vertical plane perpendicular to locating rack of symmetry axis, Л1Preceding welding wire 5.1 and rear welding wire 5.2 and pivot 2.4
Common plane
1.1 locating racks, 1.2 tracks, 1.3 walking mechanisms
1.3.1 slide rail, 1.3.2 disk roller bearings, 1.3.3 walking disk rollers
2.1 welding gun supports, 2.2 axial linear drives, 2.3 bracket at corner, 2.4 pivots
3.1 fixed frames, 3.2 soldering set elevating mechanisms, 3.3 soldering set right-left adjusting devices, 3.4 soldering set angle regulators
3.2.1 lifting motor, 3.2.2 lifting decelerators, 3.2.3 elevating screws, 3.2.4 lifting nuts
3.3.1 adjusting bracket, 3.3.2 adjusting screws, 3.3.3 regulation handles, 3.3.4 welding gun slides
3.4.1 corner seat
4.2 wire feed rolls, 4.3 electric conductors, 4.4 conductive sliders, 4.5 wire feeding motors, 4.7 wire feed rolls fixed mounts, 4.8 compress
Block
Welding wire before 5.1, welding wire after 5.2
6.1 tracking slide rails, 6.2 sliding blocks
Embodiment
Embodiments of the invention are elaborated below in conjunction with accompanying drawing, but are not limited to the scope of the present invention.
With reference to shown in figure 1-3, a kind of twin wire automatic welding hidden arc welding device being built in helix tube molding machine, including it is primary fixed
Bit architecture 1, wheelbase corner adjustment mechanism 2, soldering set adjustment mechanism 3 and welding gun 4, the welding gun 4 are fixed on the soldering set adjustment machine
On structure 3, the primary location structure 1 includes locating rack 1.1, track 1.2 and is fixed bolt, the midpoint of locating rack 1.1
Position is provided with symmetry axis；The locating rack is to cross the vertical plane Л perpendicular to locating rack of symmetry axis as symmetrical plane axial symmetry
Ground is provided with walking mechanism 1.3；The locating rack 1.1 is adjustably secured setting in the helix tube molding machine by track 1.2
In the rail groove of standby portal frame, and fixed by being fixed bolt；
The soldering set adjustment mechanism 3 includes fixed frame 3.1, soldering set elevating mechanism 3.2, soldering set right-left adjusting device 3.3
With soldering set angle regulator 3.4, the fixed frame 3.1 is fixed on the locating rack 1.1, the soldering set elevating mechanism
3.2 are fixed on the fixed frame 3.1；The soldering set right-left adjusting device 3.3 is fixed on the wheelbase corner adjustment mechanism
On 2, the soldering set right-left adjusting device 3.3 connects soldering set angle regulator 3.4, on the soldering set angle regulator 3.4
It is fixed with welding gun 4；
The wheelbase corner adjustment mechanism 2 is fixedly mounted on the soldering set elevating mechanism 3.2；The wheelbase corner adjustment
Mechanism 2 includes welding gun support 2.1, axial linear drives 2.2 and bracket at corner 2.3, and the welding gun support 2.1 is fixed on described
On soldering set elevating mechanism, axial linear drives 2.2 are fixed with welding gun support 2.1, the bracket at corner 2.3 is fixed on described
In axial linear drives；
The walking mechanism 1.3 is the axle to cross the vertical plane Л perpendicular to locating rack of symmetry axis 16 as symmetrical plane
Slide rail 1.3.1 is symmetrically provided with locating rack 1.1, disk roller bearing 1.3.2, the disk roller are sliding combined with slide rail 1.3.1
Bearing 1.3.2 is provided with walking disk roller 1.3.3.
The soldering set elevating mechanism 3.2 includes lifting motor 3.2.1, lifting decelerator 3.2.2 and elevating screw 3.2.3,
The output shaft of the lifting motor 3.2.1 passes through lifting decelerator 3.2.2 connection elevating screws 3.2.3；The elevating screw
3.2.3 driving lifting nut 3.2.4, the lifting nut 3.2.4 is fixedly connected with the welding gun support 2.1.
The soldering set right-left adjusting device 3.3 includes adjusting bracket 3.3.1, the adjusting bracket 3.3.1 and is provided with regulation
Threaded engagement has welding gun slide 3.3.4 on leading screw 3.3.2, the adjusting screw 3.3.2；The welding gun slide 3.3.4, which is provided with, to be adjusted
Nut is saved, in adjusting nut, the other end is fixed on the adjusting bracket 3.3.1 and set adjusting screw 3.3.2 one end fits
There is regulation handle 3.3.3 or provided with left and right adjusting servomotor.
The axial linear drives 2.2 include leading screw, nut and linear drives servomotor, the linear drives servo electricity
Machine drives the leading screw rotation.
The soldering set angle regulator 3.4 includes corner seat 3.4.1 and angular servo-motor, the corner seat 3.4.1
It is articulated on the welding gun slide 3.3.4, the welding gun 4 is fixed on corner seat 3.4.1, and angular servo-motor driving is described to be turned
Angled seat 3.4.1 rotates around drive-connecting shaft.
The bracket at corner 2.3 includes bearing, rotating disc, angular transducer, rotating servo motor, the adjusting bracket
3.3.1 wear and be fixed on the rotating disc 2.3.3, the rotating servo motor driving rotating disc 2.3.3 and the regulation branch
Frame 3.3.1 can rotate around pivot 2.4 at a certain angle.
Soldering set right-left adjusting device 3.3 is to cross the vertical plane Л perpendicular to locating rack of symmetry axis as symmetrical plane axle pair
Claiming ground, the bracket at corner 2.3 can turn an angle and position around pivot 2.4, the pivot on the bracket at corner 2.3
2.4 are located to cross on the vertical plane Л perpendicular to locating rack of symmetry axis.
Preferably, the preceding welding wire 5.1, rear welding wire 5.2 and the pivot 2.4 are in same common plane Л1Interior, this is common
The tangent line L that plane passes through weld seam summit.
The linear drives are adjusting screw, and welding gun slide 3.3.4, the welding gun slide are combined with the adjusting screw
3.3.4 corner seat 3.4.1 is articulated with, the welding gun 4 is fixed on corner seat 3.4.1, and angular servo-motor 4.6 drives institute
Corner seat 3.4.1 is stated to rotate around drive-connecting shaft；
As shown in figure 4, the welding gun 4 includes wire feed rolls fixed mount 4.7, electric conductor 4.3, conductive slider 4.4.Wire feed rolls is consolidated
Determine rotation on frame 4.7 and be provided with a pair of wire feed rolls 4.2, electric conductor 4.3, the conduction is fixedly mounted in the lower section of wire feed rolls fixed mount 4.7
Body 4.3 connects conductive slider 4.4.The wire feed rolls 4.2, electric conductor 4.3 and conductive slider 4.4 are run through in one wire feed hole.Wire feed electricity
Machine 4.5 drives a wire feed rolls 4.2 to rotate and is sent to the welding wire 5 between two wire feed rolls 4.2 outside plumb joint from wire feed hole；The tune
Section sliding block 4.4 is externally provided with compact heap 4.8, and the compact heap 4.8 compresses the adjusting slider 4.4 by hold-down mechanism；
Preferably, the adjusting bracket 3.3.1 is also substitutable for L shaped plate；
Preferably, the long side plate of the L shaped plate is integrally formed with the rotating disc；
Preferably, the locating rack 1.1 is integrally formed with the fixed frame 3.1；
The adjusting screw 3.3.2 ends are provided with adjusting handle 3.3.3 or servomotor；The welding gun slide is provided with regulation
Nut, in adjusting nut, the other end is fixed on the adjusting bracket 3.3.1 and is provided with adjusting screw 3.3.2 one end fits
Regulation handle or provided with left and right adjusting servomotor.
The welding gun 4 is two, sets the welding wire of different-diameter, different electrical power respectively, for example one is AC power, one
Individual is dc source.Preferably, one is that gage of wire is 4.0mm dc sources, and gage of wire is 3.2mm AC powers.
The locating rack 1.1 is preferably sight rail；The sight rail is adjustably secured in the helix tube molding machine
On equipment portal frame, the preferably equipment portal frame that is adjustably secured is provided with guide groove, and the locating rack is provided with leading for guide rail
To cooperation；The preferred dovetail groove of guide groove；
Including primary positioning step, when the spiral steel pipe of a new model needs production, the locating rack 1.1 is adjusted in institute
State the position in the equipment portal frame chute of helix tube molding machine so that pivot 2.4 by by the weldering spiral steel pipe center of circle so that
The twin wire automatic welding hidden arc welding device positions in Y-direction, positions of the adjustment walking disk roller 1.3.3 on slide rail 1.3.1 so that described
Circular arcs where two 3 points of walking disk roller 1.3.3 and welding wire intersection points with it is described by weldering spiral steel pipe concentric；Locating rack 1.1 is pacified
On equipment portal frame so that the positioning of welding gun is positioned by means of portal frame X, Z-direction, is made by the swing of helix tube molding machine
Pivot 2.4 right through by the center of circle of weldering spiral steel pipe, to the twin wire automatic welding hidden arc welding device, how centering weld seam is determined
Primary positioning has been carried out in position adjustment.
For accurate positioning, the lower end axis of the pivot 2.4 is provided with the axis that can detect pivot 2.4 and by weldering spiral shell
Revolve the tip circle cambered surface intersection point O of steel pipe1(x1, y1) position coordinates High sensitive light-position sensor, the walking disk roller 1.3.3
Rotating shaft on equipped with can detect disk roller with by weldering spiral steel pipe contact point O2(x2, y2)、O3(x3, y3) position coordinates it is highly sensitive
Optical position sensor is spent, can be by being calculated by 3 points of the center of circle O.It is described " so that pivot 2.4 is right through by weldering spiral steel
The center of circle of pipe ", calculate the circular arc arc (O1, O2, O3) center of circle O (x, y), judge the center of circle O (x, y) whether in pivot
On 2.4 axis；
Described " so that pivot 2.4 is right through by center of circle of weldering spiral steel pipe ", it is preferable that the lower end of the pivot 2.4
Axis is provided with the axis that can detect pivot 2.4 and the tip circle cambered surface intersection point i.e. weld seam summit O by weldering spiral steel pipe1(x1, y1)
The High sensitive light-position sensor of position coordinates, equipped with disk roller can be detected with being welded in the rotating shaft of the walking disk roller 1.3.3
Spiral steel pipe contact point O2(x2, y2)、O3(x3, y3) position coordinates High sensitive light-position sensor；Calculate the circular arc
arc(O1, O2, O3) center of circle O (x, y), judge the center of circle O (x, y) whether on the axis of pivot 2.4；
Also include two-stage positioning step, after primary positioning is completed, set the corner α of the wheelbase corner adjustment mechanism 2
With it is described consistent by the angle between the vertex tangent of weldering spiral steel pipe spiral weld and steel pipe axis；Adjust soldering set lift
Structure, soldering set right-left adjusting device and soldering set angle regulator so that the front and rear centering weld seam respectively of preceding welding wire 5.1, rear welding wire 5.2
And there is certain distance, adjust the welding wire anchor point of welding wire alignment sensor so that preceding welding wire 5.1, rear welding wire 5.2 and welding wire are determined
On the straight line of site three points one, and welding wire anchor point centering weld seam, complete two-stage positioning.
The locating rack is adjustably secured on the portal frame of the helix tube molding machine, Y-direction adjustment is led
Position of the rail in guide groove, while positions of the walking disk roller 1.3.3 on slide rail 1.3.1 is adjusted, ensure that symmetry axis 16 is crossed and welded
The spiral steel pipe center of circle is connect, thus facilitates the positioning of preceding welding wire 5.1, rear welding wire 5.2 and the straight line of welding wire anchor point three points one, together
When be also convenient for preceding welding wire 5.1, the centering weld seam of rear welding wire 5.2.Locating rack is so precisely mounted on portal frame, so done
Benefit be so that the positioning of welding gun is positioned by means of portal frame X, Z-direction, pass through the swing welding gun pair of helix tube molding machine
Claiming axle 16, to mariages welder, how primary has been done in the positioning adjustment of centering weld seam right through by the center of circle of weldering spiral steel pipe
Positioning.So, the positioning adjustment of preceding welding wire 5.1, the centering weld seam of rear welding wire 5.2, preceding welding wire 5.1, rear welding wire 5.2 and welding wire positioning
The adjustment of the positioning of three points one straight lines of point also becomes to be more prone on the basis of primary positions.This is referred to as two-stage positioning,
And it is that the basis of good primary positioning is laid in the dynamic adjustment for realizing two-stage positioning.
When mariages welder works, power supply opening electric welding machine is connected, steel pipe is entered by delivery machine along X-plane straight ahead
Equipment portal frame, locating rack 1.1 is also put into, the walking disk roller 1.3.3 of locating rack 1 walks along steel pipe axis on steel pipe, leads to
Cross lifting motor 3.2.1 adjustment conductive sliders 4.4 and the distance of steel pipe, constant-speed wire-feeding of the 1# and 2# welding wires through wire feeding motor 4.5
It is sent into electric conductor 4.3, then stretches out the head 25-35mm of conductive slider 4.4, then adjusting screw is rotated with regulation handle 3.3.4
3.3.2, the 1# welding wires of regulation left and right conductive slider 4.4,2# distances between weldingwires are 8mm-20mm, and 1# welding wires, the welding wire of 2# welding wires press from both sides
Angle keep 30 °, welding wire emersion conductive slider 4.4 be preferred to 25-35mm, 1# welding wires and 2# welding wires alignment shaping seam, keep 1# and
2# welding wires are into a line with indicator lamp and vertical with being molded seam, and primary when positioning adjustment is positioned with after the completion of two-stage positioning, is referred to
After showing lamp prompting, solder flux startup power supply is connected, two root wire 1#, 2# melt to form welding bead attractive in appearance in a molten bath.It is above-mentioned double
Wire bond carries out primary positioning and two-stage positioning, easy to adjust, is easy to the realization of dynamic seam tracking system.Dynamic weld seam is certainly
Motion tracking method need to only track the X axis distance between the welding wire anchor point by weld seam actual point and preceding welding wire point, if distance
Not equal to 0, then it represents that welding seam bias, only need linear drive apparatus to move forward and backward rotating disc along by weldering spiral tube axis direction
Realize.Specific method is as follows,
By lot of experiments, it is found that the skew of actual welds is typically due to caused by the error of width of steel band, and
The error of width of steel band shows the skew that weld seam is normally behaved as when on the steel pipe being rolled into steel pipe axis direction, as long as therefore
Actual welds identification laser locator is installed, according to the difference of steel pipe seam and non-weld seam come automatic identification weld seam in steel pipe axis
The physical location in direction, then can be achieved weld seam from motion tracking.
As shown in Fig. 2,5, a kind of weld seam for the twin wire automatic welding hidden arc welding device being built in helix tube molding machine automatically with
Track method,
The preceding welding wire 5.1, rear welding wire 5.2 are with the pivot 2.4 in same common plane Л1Interior, the common plane leads to
Cross the tangent line L on weld seam summit；That is, the corner α of the wheelbase corner adjustment mechanism 2 with it is described by Coiling Welded Pipe spiral weld
Vertex tangent and steel pipe axis between angle it is consistent；
Vertical plane (Л) perpendicular to locating rack on locating rack 1.1 is provided with tracking slide rail 6.1, the sliding block rail 6.1
It is parallel with by the X axis of the axis of weldering spiral steel pipe；Sliding block 6.2 is arranged on the slide rail 6.1, and the lower section of sliding block 6.2 is set
There is optoelectronic contact type welded seam tracing sensor, the optoelectronic contact type welded seam tracing sensor is vertically projected to by weldering spiral steel pipe
Weld seam on actual welds anchor point O5(x5, y5)；The sliding block is driven by tracking servo motor；
In the preceding side of welding wire 5.1 welding wire photoelectric sensor, the welding wire photoelectric sensor are provided with apart from preceding welding wire 5-10mm
It is vertically projected to by the welding wire anchor point O of weldering spiral steel pipe4(x4, y4)；
The localization method of the twin wire automatic welding hidden arc welding device being built in helix tube molding machine completes primary positioning step
After rapid and two-stage positioning step, welding wire anchor point is monitored at any time and by the position between the actual welds anchor point of weldering spiral steel pipe
Relation, as X-axis, welding wire anchor point O is detected with certain frequency by the axis of weldering spiral steel pipe4(x4, y4) and weld and HAZ point O5
(x5, y5), calculate welding wire anchor point O4(x4, y4) and actual welds anchor point O5(x5, y5) between X-direction distance, delta dx=
x5-x4；Make the following judgment：
If 1) Δ dx=0 is continued to monitor；
If 2) Δ dx＞ 0, then start linear drives servomotor and rotate disk distance along X-direction negative sense | Δ .1dx
|；
If 3) Δ dx＜ 0, then start linear drives servomotor and rotate disk distance along X-direction forward direction | Δ dx|；
The spiral submerged arc twin wire automatic welding welder, cool time is extended, weld seam matter is ensure that when improving speed of welding
Amount, reduces weld defect, improves working environment.Created favorable conditions for next process, reduce repair welding amount and save
Material resources, financial resources, manpower reduce manufacturing cost.
Claims (10)
1. a kind of twin wire automatic welding hidden arc welding device being built in helix tube molding machine, including primary location structure (1), wheelbase turn
Angle adjusting mechanism (2), soldering set adjustment mechanism (3) and welding gun (4), the welding gun (4) are fixed on the soldering set adjustment mechanism (3)
On, it is characterised in that
The primary location structure (1) includes locating rack (1.1), track (1.2) and is fixed bolt, the locating rack
(1.1) point midway is provided with symmetry axis；The locating rack is symmetrical to cross the vertical plane (л) perpendicular to locating rack of symmetry axis
It is provided with walking mechanism (1.3) plane axial symmetry；The locating rack (1.1) is adjustably secured described by track (1.2)
In the rail groove of the equipment portal frame of helix tube molding machine, and fixed by being fixed bolt；
The soldering set adjustment mechanism (3) includes fixed frame (3.1), soldering set elevating mechanism (3.2), soldering set right-left adjusting device
(3.3) it is fixed on soldering set angle regulator (3.4), the fixed frame (3.1) on the locating rack (1.1), the weldering
Tool elevating mechanism (3.2) is fixed on the fixed frame (3.1)；The soldering set right-left adjusting device (3.3) is fixed on described
On wheelbase corner adjustment mechanism (2), soldering set right-left adjusting device (3.3) the connection soldering set angle regulator (3.4) is described
Welding gun (4) is fixed with soldering set angle regulator (3.4)；The welding gun is two, and the welding gun is respectively equipped with difference directly
The welding wire in footpath, one is AC power, and another is dc source；
The wheelbase corner adjustment mechanism (2) is fixedly mounted on the soldering set elevating mechanism (3.2)；The wheelbase corner adjustment
Mechanism (2) includes welding gun support (2.1), axial linear drives (2.2) and bracket at corner (2.3), and the welding gun support (2.1) is solid
It is scheduled on the soldering set elevating mechanism, axial linear drives (2.2), the bracket at corner is fixed with welding gun support (2.1)
(2.3) it is fixed in the axial linear drives；
Soldering set right-left adjusting device (3.3) is with the vertical plane (л) perpendicular to locating rack of symmetry axis excessively for symmetrical plane axle pair
It is fixed on the bracket at corner (2.3) with claiming, the bracket at corner (2.3) can turn an angle and determine around pivot (2.4)
Position, the pivot (2.4) are located to cross on the vertical plane (л) perpendicular to locating rack of symmetry axis.
2. the twin wire automatic welding hidden arc welding device in helix tube molding machine is built in as claimed in claim 1, it is characterised in that described
Walking mechanism (1.3) is to cross the vertical plane (л) perpendicular to locating rack of symmetry axis (16) as symmetrical plane, axisymmetrically exist
Locating rack (1.1) is provided with slide rail (1.3.1), and disk roller bearing (1.3.2), the disk roller are sliding combined with slide rail (1.3.1)
Bearing (1.3.2) is provided with walking disk roller (1.3.3).
3. the twin wire automatic welding hidden arc welding device in helix tube molding machine is built in as claimed in claim 2, it is characterised in that described
Soldering set elevating mechanism (3.2) includes lifting motor (3.2.1), lifting decelerator (3.2.2) and elevating screw (3.2.3), described
The output shaft of lifting motor (3.2.1) connects elevating screw (3.2.3) by lifting decelerator (3.2.2)；The elevating screw
(3.2.3) driving lifting nut (3.2.4), the lifting nut (3.2.4) are fixedly connected with the welding gun support (2.1).
4. the twin wire automatic welding hidden arc welding device in helix tube molding machine is built in as claimed in claim 2, it is characterised in that described
Soldering set right-left adjusting device (3.3) includes adjusting bracket (3.3.1), and the adjusting bracket (3.3.1) is provided with adjusting screw
(3.3.2), threaded engagement has welding gun slide (3.3.4) on the adjusting screw (3.3.2)；The welding gun slide (3.3.4) sets
There is adjusting nut, for adjusting screw (3.3.2) one end fits in adjusting nut, the other end is fixed on the adjusting bracket
On (3.3.1) and provided with regulation handle (3.3.3) or provided with left and right adjusting servomotor.
5. the twin wire automatic welding hidden arc welding device in helix tube molding machine is built in as claimed in claim 2, it is characterised in that described
Axial linear drives (2.2) include leading screw, nut and linear drives servomotor, described in the linear drives servomotor driving
Leading screw rotates.
6. the twin wire automatic welding hidden arc welding device in helix tube molding machine is built in as claimed in claim 4, it is characterised in that described
Soldering set angle regulator (3.4) includes corner seat (3.4.1) and angular servo-motor, and the corner seat (3.4.1) is articulated in
On the welding gun slide (3.3.4), the welding gun (4) is fixed on corner seat (3.4.1), and angular servo-motor driving is described to be turned
Angled seat (3.4.1) rotates around drive-connecting shaft.
7. the twin wire automatic welding hidden arc welding device in helix tube molding machine is built in as claimed in claim 4, it is characterised in that described
Bracket at corner (2.3) includes bearing, rotating disc, angular transducer, rotating servo motor, and the adjusting bracket (3.3.1) wears
It is fixed on the rotating disc, the rotating servo motor driving rotating disc and the adjusting bracket (3.3.1) can be with certain angles
Degree rotates around pivot (2.4).
A kind of 8. positioning for the twin wire automatic welding hidden arc welding device being built in as described in claim 2-6 is any in helix tube molding machine
Method, it is characterised in that
Including primary positioning step, when the spiral steel pipe of a new model needs production, the locating rack (1.1) is adjusted described
Position in the equipment portal frame chute of helix tube molding machine so that pivot (2.4) by by the weldering spiral steel pipe center of circle so that
The twin wire automatic welding hidden arc welding device positions in Y-direction, position of the adjustment walking disk roller (1.3.3) on slide rail (1.3.1) so that
Two walking disk rollers (1.3.3) and circular arcs where 3 points of welding wire intersection point with it is described by weldering spiral steel pipe concentric；Will positioning
Frame is arranged on equipment portal frame so that the positioning of welding gun is positioned by means of portal frame X, Z-direction, passes through the pendulum of helix tube molding machine
It is dynamic make it that pivot (2.4) right through by the center of circle of weldering spiral steel pipe how weld to the twin wire automatic welding hidden arc welding device by centering
Primary positioning has been carried out in the positioning adjustment of seam.
9. the localization method for the twin wire automatic welding hidden arc welding device being built in as claimed in claim 8 in helix tube molding machine, it is special
Sign is,
Also include two-stage positioning step, after primary positioning is completed, set the corner (α) of the wheelbase corner adjustment mechanism (2)
Angle between the vertex tangent and steel pipe axis of the spiral weld by weldering spiral steel pipe is consistent；Adjust soldering set lift
Structure, soldering set right-left adjusting device and soldering set angle regulator so that preceding welding wire (5.1), the front and rear centering respectively of rear welding wire (5.2)
Weld seam simultaneously has certain distance, adjusts laser positioning point so that three points of preceding welding wire (5.1), rear welding wire (5.2) and laser positioning point
On one straight line, and laser positioning point centering weld seam, complete two-stage positioning.
A kind of 10. weldering for the twin wire automatic welding hidden arc welding device being built in as described in claim 1-7 is any in helix tube molding machine
Stitch automatic tracking method,
Vertical plane (л) perpendicular to locating rack on locating rack (1.1) is provided with tracking slide rail (6.1), the tracking slide rail
(6.1) it is parallel with by the X axis of the axis of weldering spiral steel pipe；Sliding block (6.2) is arranged on the tracking slide rail (6.1), described
Weld seam tracking sensor is provided with below sliding block (6.2), the weld seam tracking sensor is vertically projected to by the weldering of weldering spiral steel pipe
The actual welds anchor point O sewed on5(x5, y5)；The sliding block is driven by tracking servo motor；
Welding wire locator is provided with preceding welding wire (5.1) side, the welding wire locator is vertically projected to by the weldering of weldering spiral steel pipe
Silk anchor point O4(x4, y4)；
The localization method of the twin wire automatic welding hidden arc welding device being built in helix tube molding machine of the claim 9 is completed primary
After positioning step and two-stage positioning step, welding wire anchor point is monitored at any time and by between the actual welds anchor point of weldering spiral steel pipe
Position relationship, using by the axis of weldering spiral steel pipe as X-axis, with certain frequency detection welding wire anchor point O4(x4, y4) welded with actual
Stitch anchor point O5(x5, y5), calculate welding wire anchor point O4(x4, y4) and actual welds anchor point O5(x5, y5) between X-direction
Distance, delta dx=x5-x4；
Make the following judgment：
If 1) Δ dx=0 is continued to monitor；
If 2) Δ dx＞ 0, then start linear drives servomotor and rotate disk distance along X-direction negative sense | Δ dx|；
If 3) Δ dx＜ 0, then start linear drives servomotor and rotate disk distance along X-direction forward direction | Δ dx|。
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| CN201610021329.5A CN105458475B (en) | 2016-01-14 | 2016-01-14 | A kind of twin wire automatic welding hidden arc welding device and its localization method and automatic seam tracking method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109396695B (en) * | 2016-06-26 | 2021-09-03 | 何强 | Fasteners and workpieces for MIG brazing and flame brazing and methods of making same |
| CN108500422B (en) * | 2017-02-24 | 2023-06-09 | 国核电站运行服务技术有限公司 | Sealing weld bead surfacing maintenance device |
| CN109623109A (en) * | 2018-12-29 | 2019-04-16 | 浙江科鑫重工有限公司 | A kind of spiral welded pipe welder and its application method |
| CN111041479B (en) * | 2019-12-04 | 2022-04-05 | 西安铂力特增材技术股份有限公司 | Fast plasma double wire feeding follow-up control system and control method thereof |
| CN112570856B (en) * | 2020-12-09 | 2022-07-01 | 中国石油天然气集团有限公司 | Cold and hot welding wire matching welding device and system for oil gas conveying steel pipe |
| CN116423050B (en) * | 2023-06-13 | 2023-09-19 | 成都永峰科技有限公司 | Welding device and method for aerospace thin-wall curved surface part |
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Address after: No. 15, Juncheng Road, Jiuyuan Industrial Park, Baotou City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Cheng Cheng Industrial Pipeline Co., Ltd. Address before: No. 15, Juncheng Road, Jiuyuan Industrial Park, Baotou City, Inner Mongolia Autonomous Region Patentee before: INNER MONGOLIA JUNCHENG PIPELINE TECHNOLOGY CO., LTD. |
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