CN104259674B - Anti-deformation device and method before the weldering of reduction T connector Welding Angular Deformation - Google Patents

Anti-deformation device and method before the weldering of reduction T connector Welding Angular Deformation Download PDF

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Publication number
CN104259674B
CN104259674B CN201410379989.1A CN201410379989A CN104259674B CN 104259674 B CN104259674 B CN 104259674B CN 201410379989 A CN201410379989 A CN 201410379989A CN 104259674 B CN104259674 B CN 104259674B
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deformation
covering
weldering
reversible deformation
connector
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CN104259674A (en
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陶汪
韩冰
张澐龙
陈彦宾
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Harbin Industrial University Welding Technology Co., Ltd.
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Harbin Institute of Technology
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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
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • 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
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor

Abstract

Anti-deformation device and method before the weldering of reduction T connector Welding Angular Deformation, it relates to a kind of welder and method, device: the two ends of hinge axis are hinged with side stand respectively, two compressor arms are separately positioned on above front and rear panels, the upper end of hydraulic cylinder is fixedly connected with compressor arm, lower end and the connecting pin of hydraulic cylinder are hinged, the lower end of leading screw is connected with stepper motor, lifting driver plate is connected with threads of lead screw, the each hinged top plate supporting bar in both sides of lifting driver plate, upper end and the header board of one of them top plate supporting bar are hinged, wherein the upper end of another top plate supporting bar and rear plate hinged, control cabinet is connected with stepper motor by data wire, top board angular transducer is arranged on below hinge-type reversible deformation top board.Method: one, set reversible deformation angle α; Two, be installed the side of covering; Three, covering is bent; Four, carry out bilateral laser to the covering of reversible deformation and long purlin to fill silk continuous welding.The present invention is used for covering welding.

Description

Anti-deformation device and method before the weldering of reduction T connector Welding Angular Deformation
Technical field
The present invention relates to a kind of device and method reducing T connector Welding Angular Deformation, be specifically related to a kind ofly reduce Anti-deformation device and method before the weldering of T connector Welding Angular Deformation.
Background technology
In the fuselage cylinder section of aircraft, there is the T connector structure that a large amount of covering-length is analysed, this structure mainly adopts traditional clinching method to connect at present.But it is low to rivet not only production efficiency, and increases the weight of structure greatly.Enhance productivity for effectively reducing aircraft metal fuselage weight in passenger plane manufacture process simultaneously, Airbus SAS takes the lead in having carried out two bundle laser two-side synchronous soldering tests on a large scale, in order to replace conventional rivet connection technique, and be successfully applied to and comprise smallest A318, largest A380 is in the batch production of interior different types of machines.Application double laser beam both sides synchronous welding method, at least can alleviate the weight of aircraft, improve the quality of welded precision and weld seam.
T connector structure is analysed for aircraft fuselage skin-length, because the material of the T connector structure usually selected is aluminum alloy materials, but the thermal coefficient of expansion of aluminum alloy materials is larger, elastic modelling quantity is less, and, the thermal source of double laser beam both sides synchronous welding has the comparatively large and thinner thickness of the size of particularity sheet metal in addition, moreover, on covering, multiple-pass weld can cause welding stress distribution more complicated, so above-mentioned factor will cause producing the such as buckling deformation such as angular deformation, deflection deformation in welding process, wherein, the most obvious with angular deformation.Figure 10 shows that the T connector structure analysed covering-length in prior art adopts the angular deformation schematic diagram after the synchronous welding of double excitation both sides, as shown in Figure 10, after welding, this T connector structure has obvious angular deformation β, generation due to this angular deformation β may cause product to assemble, structural instability, greatly reduce the quality of product, and orthopedicly will consume a large amount of man power and materials, sometimes even can cause product rejection.Therefore, how effectively to reduce T connector Welding Angular Deformation and become comparatively urgent.
The welding deformation problem of T-type structure is analysed for fuselage skin-length, the patent of invention that China Patent No. is 201110191148.4, the applying date is on July 8th, 2011 discloses a kind of double laser beam welding method for reducing T connector welding deformation, this patent application proposed before carrying out continuous welding to the entirety of T connector, first position welding to it, its method is: double laser beam forms isolated tack weld on described.The method can reduce the deflection deformation (minimum deflection deformation is 0.1mm) of T connector to a certain extent, and effectively can ensure the accuracy of path of welding in the synchronous continuous welding process in double excitation both sides, but the angular deformation inhibitory action of the method to T connector is less, it is the angular deformation of 1.5 ° that postwelding still exists minimum; Further, experience secondary welding heated in positioning welding by the position that laser spots is solid in continuous welding subsequently, having put the thermal weld stress that maintenance puts will increase considerably, grain growth, and T connector intensity obviously declines; In addition, the black oxide impurity that tack welding seam surface exists will be introduced in the weld seam of secondary welding if do not carried out effectively cleaning, causes the problems such as pore increasing number in weld seam, size increase, slag in weld, the serious mechanical property reducing T connector.
Summary of the invention
The present invention solves to adopt double laser beam to carry out tack welding at two joint closes of aluminum alloy T type joint, and postwelding still exists the problem of 1.5 ° of angular deformations, and proposes and a kind ofly reduce Anti-deformation device and method before the weldering of T connector Welding Angular Deformation.
Device: before reducing the weldering of T connector Welding Angular Deformation, Anti-deformation device comprises base, hinge-type reversible deformation top board, stepper motor, leading screw, lifting driver plate, control cabinet, top board angular transducer, fixed head, front Connection Block, rear Connection Block, two compressor arms, two cylinder slide rails, two top plate supporting bars, two side stands, four hydraulic cylinders and four connecting pins, hinge-type reversible deformation top board is by header board, rear plate and hinge axis composition, front and rear panels are symmetricly set on the side, front and back of hinge axis, and front and rear panels are hinged by hinge axis, two side stands are separately positioned on the two ends of hinge axis, and hinge axis and side stand hinged, the lower end of each side stand is fixed on base, two compressor arms are separately positioned on above front and rear panels, one end correspondence of each compressor arm connects a hydraulic cylinder, the upper end of hydraulic cylinder is fixedly connected with compressor arm, lower end and the connecting pin of hydraulic cylinder are hinged, connecting pin is fixedly mounted on side stand, stepper motor is arranged between base and hinge-type reversible deformation top board, stepper motor is fixed on base, two cylinder slide rails are symmetricly set on the both sides of stepper motor, the lower end of each cylinder slide rail is fixed on base, the upper end of each cylinder slide rail is fixed on fixed head, the lower end of leading screw is connected with stepper motor, the upper end of leading screw by bearings in fixed head, lifting driver plate is arranged between fixed head and stepper motor, lifting driver plate is connected with threads of lead screw, the two ends of lifting driver plate are set on two cylinder slide rails, two top plate supporting bars are symmetricly set on the side, front and back of leading screw, top plate supporting bar lower end below header board is hinged with lifting driver plate, top plate supporting bar upper end below header board and front Connection Block hinged, front Connection Block is fixed on below header board, top plate supporting bar lower end below rear plate is hinged with lifting driver plate, top plate supporting bar upper end below rear plate and rear Connection Block hinged, rear Connection Block is fixed on below rear plate, control cabinet is connected with stepper motor by data wire, top board angular transducer is arranged on below hinge-type reversible deformation top board, and top board angular transducer is fixed on side stand.
Method: before reducing the weldering of T connector Welding Angular Deformation, the method for reversible deformation is realized by following steps:
Step one, setting reversible deformation angle α: the reversible deformation angle α preset is inputted in top board angular transducer;
The side of step 2, the covering that is installed: covering is placed on hinge-type reversible deformation top board, compressor arm 3 on header board is placed on covering, utilize compressor arm and hydraulic cylinder by compacting skin on header board, the position line to be welded on covering and the axis of hinge axis coincide with the upper and lower setting;
Step 3, covering to be bent: by control cabinet control step motor and screw turns, lifting driver plate is along guide screw movement, lifting driver plate drives front and rear panels to rotate around hinge axis by top plate supporting bar, the angle fine adjustment of front and rear panels is the reversible deformation angle α preset by top board angular transducer, the reversible deformation angle α of setting twice is equal with the actual corners deformation angle β of T connector, and reversible deformation angle α is contrary with the direction of the actual corners deformation angle β of T connector; Compressor arm on rear plate is placed on covering, utilizes compressor arm and hydraulic cylinder by compacting skin on rear plate, covering is bent along hinge axis, realizes the bending reversible deformation to covering;
Step 4, the covering of reversible deformation and long purlin carried out to bilateral laser and to fill silk continuous welding: long purlin to be positioned on the position line to be welded and to overlap with it, double laser beam and welding wire are placed in joint close place, T connector both sides, continuous print laser filling wire welding is carried out to the entirety of T connector.
The present invention has following beneficial effect compared with the conventional method:
One, before fuselage skin-long purlin T-type structure assembly welding, before utilizing the weldering of reduction T connector Welding Angular Deformation of the present invention, Anti-deformation device and method carry out preset reversible deformation to covering, by covering sheet material hydraulic clamp on hinge-type reversible deformation top board, utilize the turnover campaign accurately being controlled hinge-type reversible deformation top board by leading screw and stepper motor, realize the bending reversible deformation to covering.Measure through test, postwelding angular deformation can be controlled within the scope of 0.4 ° ~ 0.9 °, is better than minimum 1.5 ° that announce in patent application 201110191148.4.
Two, the present invention need not carry out tack welding to T connector, can not cause as Welding Problems such as the strength of joint decline in patent application 201110191148.4 caused by tack welding, grain growth, slag in weld, pore increase.
Three, the present invention can integrate with the bilateral laser synchronous welding system that fills silk, fuselage skin after distortion need not carry out secondary and be installed, last integral assembly welding can be carried out after placing long purlin, compared with postwelding straightening method, production efficiency can be significantly improved and the accurate control of angular deformation after realizing butt welding.
Four, operation principle of the present invention is simple, and universality is strong, can effectively reduce the postwelding angular deformation of aircraft skin-long purlin structure.
Accompanying drawing explanation
Fig. 1 is the overall structure stereogram that the present invention reduces Anti-deformation device before the weldering of T connector Welding Angular Deformation;
Fig. 2 is the side face upwarding stereogram of Fig. 1;
Fig. 3 is the K direction view of Fig. 1;
Fig. 4 is the partial perspective view at the hinge place of header board 2-1 or rear plate 2-2;
Fig. 5 is the I partial enlarged drawing of Fig. 4;
Fig. 6 is that in detailed description of the invention seven, the compressor arm 3 on header board 2-1 is placed in the schematic diagram on covering 17 by step 2;
Fig. 7 is that in detailed description of the invention seven, the compressor arm 3 on rear plate 2-2 is placed on covering 17 by step 3, and carries out bending reversible deformation to covering 17, and the schematic diagram of long purlin 18 placement location;
Fig. 8 is the schematic diagram that in detailed description of the invention seven, double laser beam and welding wire are placed in joint close place, T connector both sides by step 4;
Fig. 9 is the schematic diagram that in detailed description of the invention seven, step 4 carries out continuous print laser filling wire welding to the entirety of T connector;
Figure 10 is covering-long purlin T-type structure postwelding angular deformation β schematic diagram (not welding front reversible deformation).
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 ~ Fig. 5 illustrates present embodiment, present embodiment comprises base 1, hinge-type reversible deformation top board 2, stepper motor 5, leading screw 6, lifting driver plate 8, control cabinet 10, top board angular transducer 11, fixed head 14, front Connection Block 15, rear Connection Block 16, two compressor arms 3, two cylinder slide rails 7, two top plate supporting bars 9, two side stands 12, four hydraulic cylinders 4 and four connecting pins 13, hinge-type reversible deformation top board 2 is by header board 2-1, rear plate 2-2 and hinge axis 2-3 forms, header board 2-1 and rear plate 2-2 is symmetricly set on the side, front and back of hinge axis 2-3, and header board 2-1 and rear plate 2-2 is hinged by hinge axis 2-3, two side stands 12 are separately positioned on the two ends of hinge axis 2-3, and hinge axis 2-3 and side stand 12 hinged, the lower end of each side stand 12 is fixed on base 1, two compressor arms 3 are separately positioned on above header board 2-1 and rear plate 2-2, one end correspondence of each compressor arm 3 connects a hydraulic cylinder 4, the upper end of hydraulic cylinder 4 is fixedly connected with compressor arm 3, lower end and the connecting pin 13 of hydraulic cylinder 4 are hinged, connecting pin 13 is fixedly mounted on side stand 12, stepper motor 5 is arranged between base 1 and hinge-type reversible deformation top board 2, stepper motor 5 is fixed on base 1, two cylinder slide rails 7 are symmetricly set on the both sides of stepper motor 5, the lower end of each cylinder slide rail 7 is fixed on base 1, the upper end of each cylinder slide rail 7 is fixed on fixed head 14, the lower end of leading screw 6 is connected with stepper motor 5, the upper end of leading screw 6 by bearings in fixed head 14, lifting driver plate 8 is arranged between fixed head 14 and stepper motor 5, lifting driver plate 8 is threaded with leading screw 6, the two ends of lifting driver plate 8 are set on two cylinder slide rails 7, two top plate supporting bars 9 are symmetricly set on the side, front and back of leading screw 6, top plate supporting bar 9 lower end below header board 2-1 is hinged with lifting driver plate 8, top plate supporting bar 9 upper end below header board 2-1 and front Connection Block 15 hinged, front Connection Block 15 is fixed on below header board 2-1, top plate supporting bar 9 lower end below rear plate 2-2 is hinged with lifting driver plate 8, top plate supporting bar 9 upper end below rear plate 2-2 and rear Connection Block 16 hinged, rear Connection Block 16 is fixed on below rear plate 2-2, control cabinet 10 is connected with stepper motor 5 by data wire, top board angular transducer 11 is arranged on below hinge-type reversible deformation top board 2, and top board angular transducer 11 is fixed on side stand 12.Stepper motor 5, control cabinet 10 and top board angular transducer 11 all directly can purchase finished product.Hinge-type reversible deformation top board 2 adopts gemel connection mode, can realize turning down distortion continuously, on the basis meeting structural strength, the hinge axis 2-3 that should design as far as possible or select diameter less, diameter is less, and the precision of reversible deformation top board bending covering is higher, and effect is better.
Detailed description of the invention two: composition graphs 1 ~ Fig. 3 illustrates present embodiment, side stand 12 and the base 1 of present embodiment make one.Such design can improve the stability of device.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention three: composition graphs 1, Fig. 2 and Fig. 7 illustrate present embodiment, described two compressor arms 3 and the hinge axis 2-3 of present embodiment be arranged in parallel.Such design makes the power of the covering 17 compressed on header board 2-1 and rear plate 2-2 balanced.Other composition and annexation identical with detailed description of the invention one or two.
Detailed description of the invention four: composition graphs 7 illustrates present embodiment, the compressor arm 3 of present embodiment is elongated bar-shaped, and its cross sectional shape is equilateral triangle.The Cross section Design object of equilateral triangle is farthest for laser welding system reserves abundant exercise space and can play more effectively stable clamping action to covering when ensureing compressor arm 3 rigidity.Other composition and annexation identical with detailed description of the invention three.
Detailed description of the invention five: composition graphs 1 and Fig. 7 illustrate present embodiment, the material of the compressor arm 3 of present embodiment is high-strength steel.High-strength steel not easily occurs bending and deformation.Other composition and annexation identical with detailed description of the invention four.
Detailed description of the invention six: composition graphs 2 illustrates present embodiment, present embodiment and detailed description of the invention five also increase unlike it netted reinforcing rib 19, and the lower surface of header board 2-1 and rear plate 2-2 is welded with netted reinforcing rib 19.Be designed to the rigidity increasing hinge-type reversible deformation top board 2 like this, can be installed and effective stress deformation suppressing hinge-type reversible deformation top board 2 in bending reversible deformation process subsequently at the hydraulic pressure of covering 17, improve the precision of reversible deformation.Other step is identical with detailed description of the invention four or five.
Detailed description of the invention seven: composition graphs 6 ~ Fig. 9 illustrates present embodiment, and present embodiment is realized by following steps:
Step one, setting reversible deformation angle α: the reversible deformation angle α preset is inputted in top board angular transducer 11;
The side of step 2, the covering 17 that is installed: covering 17 is placed on hinge-type reversible deformation top board 2, compressor arm 3 on header board 2-1 is placed on covering 17, compressor arm 3 and hydraulic cylinder 4 is utilized to be pressed on header board 2-1 by covering 17, see Fig. 6, the position line to be welded 20 on covering 17 coincides with the upper and lower setting with the axis 21 of hinge axis 2-3;
Step 3, covering 17 to be bent (i.e. reversible deformation): rotated by control cabinet 10 control step motor 5 and leading screw 6, lifting driver plate 8 moves along leading screw 6, lifting driver plate 8 drives header board 2-1 and rear plate 2-2 to rotate around hinge axis 2-3 by top plate supporting bar 9, see Fig. 6, the angle fine adjustment of header board 2-1 and rear plate 2-2 is the reversible deformation angle α preset by top board angular transducer 11, the reversible deformation angle α of setting twice is equal with the actual corners deformation angle β of T connector, and reversible deformation angle α is contrary with the direction of the actual corners deformation angle β of T connector; Compressor arm 3 on rear plate 2-2 is placed on covering 17, utilizes compressor arm 3 and hydraulic cylinder 4 to be pressed on rear plate 2-2 by covering 17, covering 17 is bent along hinge axis 2-3, realize, to the bending reversible deformation of covering 17, seeing Fig. 7; The numerical value of the actual corners deformation angle β of T connector can by previous same size and the actual corners distortion not applying the wallboard T connector welding front reversible deformation measure and add up and obtain;
Step 4, the covering 17 of reversible deformation and long purlin 18 carried out to bilateral laser and to fill silk continuous welding: long purlin 18 to be positioned on the position line 20 to be welded and to overlap with it, see Fig. 7, double laser beam and welding wire are placed in joint close place, T connector both sides, see Fig. 8, continuous print laser filling wire welding is carried out to the entirety of T connector, sees Fig. 9.
At this, the material of T connector is aluminium alloy, but, those skilled in the art should be appreciated that, method of the present invention is not limited to the welding of aluminum alloy T type joint, also can be similar to the T connector of the other materials of aluminium alloy according to the angular deformation of this method reduction postwelding to other physico-chemical properties.
Detailed description of the invention eight: composition graphs 1 and Fig. 2 illustrate present embodiment, present embodiment is in step 2, first, after hinge-type reversible deformation top board 2 being adjusted to level, covering 17 is pressed on the hinge-type reversible deformation top board 2 of both sides by recycling compressor arm 3 and hydraulic cylinder 4.Other step is identical with detailed description of the invention seven.
Detailed description of the invention nine: composition graphs 7 illustrates present embodiment, present embodiment is that in step 2 and step 4, the distance S of compressor arm 3 to hinge axis 2-3 is 5mm ~ 30mm.In guarantee for laser welding system leaves enough spaces subsequently, two compressor arms 3 farthest near the position (i.e. hinge axis 2-3 place) be bent, can improve effect and precision that covering 17 bends reversible deformation.Other step is identical with detailed description of the invention seven or eight.
Detailed description of the invention ten: composition graphs 1 and Fig. 2 illustrate present embodiment, adopts inert gas argon gas (Ar) or helium (He) to carry out real-time guard to two side welds when present embodiment is laser filling wire welding in step 4.Other step is identical with detailed description of the invention seven.

Claims (10)

1. one kind reduces Anti-deformation device before the weldering of T connector Welding Angular Deformation, before the weldering of described reduction T connector Welding Angular Deformation, Anti-deformation device comprises base (1), hinge-type reversible deformation top board (2), stepper motor (5), leading screw (6), lifting driver plate (8), control cabinet (10), top board angular transducer (11), fixed head (14), front Connection Block (15), rear Connection Block (16), two compressor arms (3), two cylinder slide rails (7), two top plate supporting bars (9), two side stands (12), four hydraulic cylinders (4) and four connecting pins (13), it is characterized in that: hinge-type reversible deformation top board (2) is by header board (2-1), rear plate (2-2) and hinge axis (2-3) composition, header board (2-1) and rear plate (2-2) are symmetricly set on the side, front and back of hinge axis (2-3), and header board (2-1) and rear plate (2-2) hinged by hinge axis (2-3), two side stands (12) are separately positioned on the two ends of hinge axis (2-3), and hinge axis (2-3) is hinged with side stand (12), the lower end of each side stand (12) is fixed on base (1), two compressor arms (3) are separately positioned on above header board (2-1) and rear plate (2-2), one end correspondence of each compressor arm (3) connects a hydraulic cylinder (4), the upper end of hydraulic cylinder (4) is fixedly connected with compressor arm (3), lower end and the connecting pin (13) of hydraulic cylinder (4) are hinged, connecting pin (13) is fixedly mounted on side stand (12), stepper motor (5) is arranged between base (1) and hinge-type reversible deformation top board (2), stepper motor (5) is fixed on base (1), two cylinder slide rails (7) are symmetricly set on the both sides of stepper motor (5), the lower end of each cylinder slide rail (7) is fixed on base (1), the upper end of each cylinder slide rail (7) is fixed on fixed head (14), the lower end of leading screw (6) is connected with stepper motor (5), the upper end of leading screw (6) by bearings in fixed head (14), lifting driver plate (8) is arranged between fixed head (14) and stepper motor (5), lifting driver plate (8) is threaded with leading screw (6), the two ends of lifting driver plate (8) are set on two cylinder slide rails (7), two top plate supporting bars (9) are symmetricly set on the side, front and back of leading screw (6), top plate supporting bar (9) lower end below header board (2-1) is hinged with lifting driver plate (8), top plate supporting bar (9) upper end below header board (2-1) and front Connection Block (15) hinged, front Connection Block (15) is fixed on below header board (2-1), top plate supporting bar (9) lower end below rear plate (2-2) is hinged with lifting driver plate (8), top plate supporting bar (9) upper end below rear plate (2-2) and rear Connection Block (16) hinged, rear Connection Block (16) is fixed on below rear plate (2-2), control cabinet (10) is connected with stepper motor (5) by data wire, top board angular transducer (11) is arranged on below hinge-type reversible deformation top board (2), and top board angular transducer (11) is fixed on side stand (12).
2. reduce Anti-deformation device before the weldering of T connector Welding Angular Deformation according to claim 1, it is characterized in that: described side stand (12) and base (1) make one.
3. according to claim 1 or 2, reduce Anti-deformation device before the weldering of T connector Welding Angular Deformation, it is characterized in that: described two compressor arms (3) and hinge axis (2-3) be arranged in parallel.
4. reduce Anti-deformation device before the weldering of T connector Welding Angular Deformation according to claim 3, it is characterized in that: described compressor arm (3) is for elongated bar-shaped, and its cross sectional shape is equilateral triangle.
5. reduce Anti-deformation device before the weldering of T connector Welding Angular Deformation according to claim 4, it is characterized in that: the material of described compressor arm (3) is high-strength steel.
6. reduce Anti-deformation device before the weldering of T connector Welding Angular Deformation according to claim 5, it is characterized in that: described can reduce the weldering of T connector Welding Angular Deformation before Anti-deformation device also comprise netted reinforcing rib (19), the lower surface of header board (2-1) and rear plate (2-2) is welded with netted reinforcing rib (19).
7. before utilizing described in claim 1 weldering, Anti-deformation device realizes reducing a method for reversible deformation before the weldering of T connector Welding Angular Deformation, it is characterized in that: described method is realized by following steps:
Step one, setting reversible deformation angle α: the reversible deformation angle α preset is inputted in top board angular transducer (11);
The side of step 2, the covering that is installed (17): covering (17) is placed on hinge-type reversible deformation top board (2), compressor arm (3) on header board (2-1) is placed on covering (17), utilize compressor arm (3) and hydraulic cylinder (4) to be pressed on header board (2-1) by covering (17), the position line to be welded (20) on covering (17) coincides with the upper and lower setting with the axis (21) of hinge axis (2-3);
Step 3, covering (17) is bent: rotated by control cabinet (10) control step motor (5) and leading screw (6), lifting driver plate (8) is moved along leading screw (6), lifting driver plate (8) drives header board (2-1) and rear plate (2-2) to rotate around hinge axis (2-3) by top plate supporting bar (9), the angle fine adjustment of header board (2-1) and rear plate (2-2) is the reversible deformation angle α preset by top board angular transducer (11), the reversible deformation angle α of setting twice is equal with the actual corners deformation angle β of T connector, reversible deformation angle α is contrary with the direction of the actual corners deformation angle β of T connector, compressor arm (3) on rear plate (2-2) is placed on covering (17), compressor arm (3) and hydraulic cylinder (4) is utilized to be pressed on rear plate (2-2) by covering (17), make covering (17) along hinge axis (2-3) bending, realize the bending reversible deformation to covering (17),
Step 4, the covering (17) of reversible deformation and long purlin (18) carried out to bilateral laser and to fill silk continuous welding: long purlin (18) are positioned over the position line to be welded (20) upper and overlap with it, double laser beam and welding wire are placed in joint close place, T connector both sides, continuous print laser filling wire welding is carried out to the entirety of T connector.
8. reduce the method for reversible deformation before the weldering of T connector Welding Angular Deformation according to claim 7, it is characterized in that: in step 2, first, after hinge-type reversible deformation top board (2) being adjusted to level, covering (17) is pressed on the hinge-type reversible deformation top board (2) of both sides by recycling compressor arm (3) and hydraulic cylinder (4).
9. according to claim 7 or 8, reduce the method for reversible deformation before the weldering of T connector Welding Angular Deformation, it is characterized in that: in described step 2 and step 4, compressor arm (3) is 5mm ~ 30mm to the distance S of hinge axis (2-3).
10. reduce the method for reversible deformation before the weldering of T connector Welding Angular Deformation according to claim 7, it is characterized in that: in described step 4, during laser filling wire welding, adopt inert gas argon gas or helium to carry out real-time guard to two side welds.
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CN203636271U (en) * 2013-12-23 2014-06-11 青岛宁泰鑫环保科技股份有限公司 Deformation-resistant jig frame tool for welding bridge top plate, bottom plate and web
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* Cited by examiner, † Cited by third party
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DE3243761A1 (en) * 1982-11-26 1984-05-30 Hoesch Werke Ag, 4600 Dortmund Method and device for producing a welded section, in particular a T-section
SU1156887A1 (en) * 1982-12-31 1985-05-23 Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им.Е.О.Патона Apparatus for pre-welding assembling and welding of panels with rigidity ribs
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