CN106513928A - Welding method of rail vehicle side beam assembly - Google Patents
Welding method of rail vehicle side beam assembly Download PDFInfo
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- CN106513928A CN106513928A CN201610874690.2A CN201610874690A CN106513928A CN 106513928 A CN106513928 A CN 106513928A CN 201610874690 A CN201610874690 A CN 201610874690A CN 106513928 A CN106513928 A CN 106513928A
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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
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
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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
- B23K9/095—Monitoring or automatic control of welding parameters
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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
- B23K2101/006—Vehicles
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding method of a rail vehicle side beam assembly. A welding process for all weld joints in the assembly comprises backing welding and filling cover welding. The backing welding for all the weld joints comprises the following steps that welding is carried out from the middle points of the long weld joints to the first end of a side beam body till half-cycle welding of the annular weld joints corresponding to the long weld joints is completed; then a welding gun returns to the middle points of the long weld joints and conducts welding on the second end of the side beam body till half-cycle welding of the annular weld joints corresponding to the long weld joints is completed; and the steps are carried out repeatedly till the backing welding of the four long weld joints and the annular weld joints is completed. The welding method can find the optimal welding sequence by taking the manufacturing cost, welding line energy, welding quality and welding efficiency into account integrally.
Description
Technical field
The present invention relates to rail vehicle welding technology field, more particularly to a kind of welding side of rail vehicle curb girder component
Method.
Background technology
Rail vehicle framework primarily serves the purpose of transmission load and is that suspension and other auxiliary device provide support, therefore
Which must have enough intensity.
The main body of rail vehicle framework mainly includes multiple transverse beam assemblies and multiple curb girder components, commonly used in the prior art
Framework is for H type components, i.e. transverse beam assembly with curb girder assembling components into H types.Wherein, transverse beam assembly includes main body of cross-beam and is welded in
Multiple parts on main body of cross-beam, transverse beam assembly are mainly provided with traction electric machine mounting bracket, gear box support etc..Curb girder group
Part includes curb girder main body and the multiple parts being welded in longeron main body, is provided with spring support on curb girder component, and which is main
Support is provided for air spring；It is damper bracket to be additionally provided with snakelike amortisseur and on curb girder component.
Each support is welded in curb girder main body and main body of cross-beam by welding procedure above.It is well known that welding is held
Parts thermal deformation is easily caused, causes to weld the scale error of rear cross beam component and curb girder component than larger.Error ratio is larger
Transverse beam assembly and after curb girder components welding forms framework, the more difficulty or ease control of the welding deformation amount of framework.Therefore framework welding
The control of deflection is always the difficult problem that this area needs to overcome.
Therefore, low-built welding deformation amount how is dropped, is those skilled in that art's technical problem urgently to be resolved hurrily.
The content of the invention
For solving above-mentioned technical problem, the present invention provides the welding method of rail vehicle curb girder component, the curb girder component
Including the curb girder main body for surrounding box-structure and the spring strut positioned at the curb girder main body both ends, the four of the curb girder main body
Angle is long weld seam,
The circular weld formed between spring strut described in the both ends and two of the curb girder main body is respectively defined as the first ring
Shape weld seam, the second circular weld, the 3rd circular weld and fourth annular weld seam, wherein described first annular weld seam are annular with second
Weld seam arranges up and down that positioned at first end the 3rd circular weld is arranged positioned at the second end up and down with fourth annular weld seam；
The welding procedure of each weld seam includes backing welding and filling front cover weldering, and the backing welding of each weld seam is in the following manner
Welded：First welded from the midpoint of long weld seam to the first end of the curb girder main body, until completing and the long weld seam
Corresponding circular weld half cycle welding；Then welding gun returns the midpoint of the long weld seam, to the second end of the curb girder main body
Portion is welded, until completing to weld to corresponding circular weld half cycle with the long weld seam；According to above step complete four it is long
The backing welding of weld seam and circular weld.
Optionally, four long weld seams are respectively defined as the first long weld seam, the second long weld seam, the 3rd long weld seam and the 4th length weldering
Seam, wherein, the first long weld seam is located at same level, the 4th long weld seam and described first with the 3rd long weld seam
Long weld seam is diagonally arranged；
Wherein, the welding sequence that long weld seam carries out backing welding is：
S200, the midpoint of the first long weld seam are initial solder joint, first complete the first long weld seam to first end welding left half section
Weld the half cycle of first annular weld seam after weld seam again；Then welding gun returns the midpoint of the first long weld seam, welds to the second end
Weld the half cycle of the 3rd circular weld after completing the first half section of weld seam in the long weld seam right side again；
S210, the midpoint of the second long weld seam are initial solder joint, first complete the second long weld seam to first end welding left half section
Weld the second circular weld half cycle after weld seam again；Then welding gun returns the midpoint of the second long weld seam, has welded to the second end
Fourth annular weld seam half cycle is welded again into after the second half section of weld seam in the long weld seam right side；
S220, the midpoint of the 3rd long weld seam are initial solder joint, first complete the 3rd long weld seam to first end welding left half section
Weld first annular weld seam residue half cycle after weld seam again；Then welding gun returns the midpoint of the 3rd long weld seam, welds to the second end
Connect the 3rd circular weld remaining half is welded circumferentially after completing the 3rd half section of weld seam in the long weld seam right side；
S230, the midpoint of the 4th long weld seam are initial solder joint, first complete the 4th long weld seam to first end welding left half section
Weld the second circular weld residue half cycle after weld seam again；Then welding gun returns the midpoint of the 4th long weld seam, welds to the second end
Connect the remaining half cycle for welding fourth annular weld seam after completing the right half section of welding of the 4th long weld seam；
Above-mentioned steps S200 to S230 is repeated in, the backing welding of curb girder component is completed；
Wherein, two half cycles of above-mentioned circular weld can be symmetrical with regard to spring strut center longitudinal plane.
Optionally, the filling front cover weldering of each weld seam is carried out in the following order：First long weld seam → first annular weld seam
Long weld seam → the second circular weld the half cycle of half cycle → the 3rd circular weld half cycle → the second → fourth annular weld seam half cycle → 3rd
Long weld seam → first annular weld seam residue half cycle → long weld seam → the second circular weld of the 3rd circular weld residue half cycle → 4th
Remaining half cycle → fourth annular weld seam residue half cycle.
Optionally, in filling front cover welding, the welding direction of four long weld seams is filled out from one end to the other end
Fill.
Optionally, in the bottoming Welding, using monofilament welding procedure.
Optionally, the monofilament welding condition is：Tape pulse, current range is：140A-150A；Main filament voltage is：
15V-17V；Speed of welding is：45cm/min-50cm/min；Swing width is 1.0mm-1.5mm；Hunting frequency 120Hz.
Optionally, in the filling front cover Welding, using double wire welding technique.
Optionally, the double wire welding technological parameter is：Tape pulse, main silk current range is：110A-120A；Main silk electricity
Press and be：15V-17V；Paranema current range is：90A-100A；Paranema voltage is：12V-14V；Speed of welding is：80cm/min-
85cm/min；Swing width is 1.0mm-1.5mm.
In terms of considering manufacturing cost, weld heat input, welding quality, welding efficiency herein, optimum welding is found suitable
Sequence.
Description of the drawings
Fig. 1 be an embodiment of the present invention in manufacturing cost, welding sequence, weld heat input respectively with welding efficiency, weldering
Connect the curve relation figure of quality；
Welding method flow charts of the Fig. 2 for an embodiment of the present invention middle orbit vehicle assembly；
Welding method flow charts of the Fig. 3 for an embodiment of the present invention middle orbit car structure；
Fig. 4 is the structural representation of framework in an embodiment of the present invention；
Sectional views of the Fig. 5 for circular weld；
Fig. 6 is the welding method flow chart of curb girder component in an embodiment of the present invention；
Fig. 7 is the front view of curb girder component in an embodiment of the present invention；
Cross-sectional views of the Fig. 8 for curb girder body；
Front plan views of the Fig. 9 for transverse beam assembly；
Back side upward views of the Figure 10 for transverse beam assembly.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to control method, control
The present invention is described in further detail for device processed, the drawings and specific embodiments.
Refer to Fig. 1 and Fig. 2, Fig. 1 is manufacturing cost, welding sequence, weld heat input point in an embodiment of the present invention
Not with welding efficiency, the curve relation figure of welding quality；Welding sides of the Fig. 2 for an embodiment of the present invention middle orbit vehicle assembly
Method flow chart.
There is provided herein a kind of welding method of railway vehicle component, a lot, this paper is main for the species of railway vehicle component
For component be framework, curb girder component and transverse beam assembly as a example by be introduced.Certainly set forth herein welding method can also answer
For in the welding of other assemblies.
Rail vehicle framework mainly includes two curb girder components and is supported in both sides beam assembly, herein by two curb girder groups
Part is defined as the first curb girder component and the second curb girder component.First curb girder component and the second curb girder component or so arrange that first is horizontal
Beam assembly and second cross beam modular support are in both sides beam assembly, and the both ends of two transverse beam assemblies extend through the curb girder of both sides
Component, the i.e. both ends of first crossbeam component and second cross beam component extend through the first curb girder component and the second curb girder component.
First curb girder component and the second curb girder component are mainly body structure, thus first crossbeam component, second cross beam component and each
Curb girder component has two circular welds to be welded：Interior annular weld seam and exterior annular weld seam.
That is, two transverse beam assemblies and two longeron components form eight circular welds altogether：In four time circular weld and
Four exterior annular weld seams.
There is provided herein a kind of welding method, specific as follows：
Welding quality, welding efficiency corresponding to S1, the different welding sequences of all weld seams formation of acquisition, and set up welding
Order and welding quality, the relation of welding efficiency；
Specifically, the threedimensional model of component can be pre-build, then each weld seam in model component is numbered, is entered
And permutation and combination obtains some bond pads orders, welding quality and welding is obtained by simulating the weld seam welding of different welding sequences
Efficiency.Further numerical simulation can be carried out by the discrete multigroup welding quality and welding efficiency to obtaining and obtain different welderings
Connect the curve chart of the lower welding quality of order and welding efficiency.
S2, consider welding cost and weld heat input at least one factor and determine actual welding quality and welding effect
Rate, according to fixed actual welding quality and welding efficiency from above-mentioned weld seam order with welding quality, welding efficiency relation
Choose the welding sequence that the welding sequence of weld seam is operated as actual welding.
Specifically, the relation between welding cost and welding quality, welding efficiency can also be obtained by modeling Simulation, together
Reason weld heat input and the relation between welding quality, welding efficiency can also be obtained by modeling Simulation.
The measurement index of welding quality herein substantially three：The mechanical property parameters of weld seam, strength character parameter
With ess-strain parameter.
Specifically, obtained under different welding sequences by numerical simulation in step sl, welding quality and welding efficiency
Curve chart；Under different welding costs, the curve chart of welding quality and welding efficiency；Under different welding efficiencies, welding quality and weldering
Connect the curve chart of efficiency.
As shown in figure 1, three curves are respectively in Fig. 1：Manufacturing cost and welding efficiency, the relation curve of welding quality,
Welding sequence is bent with the relation of welding efficiency, the relation curve of welding quality, weld heat input and welding efficiency, welding quality
Line.From figure 1 it appears that weld heat input is bigger, welding quality is poorer but welding efficiency is higher；Welding quality is bigger and welds
Connect the more high corresponding welding cost of efficiency higher.
The intersection point of three curves is calculated in step s 2, and is grasped the welding sequence corresponding to the intersection point as actual welding
The welding sequence of work.
In terms of considering manufacturing cost, weld heat input, welding quality, welding efficiency herein, optimum welding is found suitable
Sequence.
1st embodiment
So that component is as framework as an example, annular curb girder component in framework formed with transverse beam assembly using above welding method
Weld seam is optimized, specific as follows.
Refer to Fig. 3 to Fig. 5, welding method flow charts of the Fig. 3 for an embodiment of the present invention middle orbit car structure；Figure
4 is the structural representation of framework in an embodiment of the present invention；Sectional views of the Fig. 5 for circular weld.
The invention provides a kind of welding method of rail vehicle framework, the welding method of the framework is specific as follows：
S100, the interior annular weld seam for welding each transverse beam assembly and the formation of curb girder component successively；
Wherein, each interior annular weld seam is welded in the following order：First crossbeam component is interior with the first curb girder component
Interior annular weld seam → first crossbeam the component of side circular weld → second cross beam component and the first curb girder component and the second curb girder
The interior annular weld seam of the interior annular weld seam → second cross beam component and the second curb girder component of component.
S110, the exterior annular weld seam for welding each transverse beam assembly and the formation of curb girder component successively.
Each exterior annular weld seam is welded in the following order：First crossbeam component and the first curb girder component
Exterior annular weld seam → first crossbeam the component of exterior annular weld seam → second cross beam component and the first curb girder component
With the outer side ring of the exterior annular weld seam → second cross beam component of the second curb girder component and the second curb girder component
Shape weld seam.
From the above, it can be seen that exterior annular weld seam takes the mode with regard to the symmetrical welding of center cross-sectional.
Circular weld is divided into two classes by the welding method of rail vehicle framework provided by the present invention, first in order according to
Secondary welding interior annular weld seam, then welds exterior annular weld seam, interior annular weld seam and outside successively according still further to certain order
Circular weld takes welding manner successively symmetrical with regard to center cross-sectional.So can be with inside effective control framework and outer
The weldquality in portion, ensure postwelding framework deflection it is less on the basis of, as far as possible improve production efficiency and reduce production cost.
Test is proved, compared with the conventional solder technology of prior art, the framework completed using this paper welding methods, and crossbeam
Component adjusting amount can be controlled in 0.5mm, and curb girder component adjusting amount can be controlled in 1.5mm, and the overall adjusting amount control of framework exists
Within 2.3mm, the amount of taking off 40% is effectively reduced according to the technique, greatly reduce the deflection of framework, substantially increase production
Efficiency.
Specifically, above-mentioned each circular weld includes two procedures：Backing welding and filling front cover weldering；Backing welding forms bottoming
Layer, filling front cover weldering are specifically divided into filling weldering and front cover weldering, form packed layer and sealing coat respectively.
And in welding, first all weld seams are carried out after backing welding successively, then be filled front cover weldering successively.
That is, first from inside to outside to completing backing welding to interior annular weld seam and exterior annular weld seam in the above sequence
Afterwards, the order of backing welding is：The interior annular weld seam of first crossbeam component and the first curb girder component, second cross beam component and first
The interior annular weld seam of curb girder component, the interior annular weld seam of first crossbeam component and the second curb girder component, second cross beam component
The exterior annular weld seam of interior annular weld seam, first crossbeam component and the first curb girder component with the second curb girder component,
Two transverse beam assemblies are outer with the second curb girder component with the exterior annular weld seam of the first curb girder component, first crossbeam component
The exterior annular weld seam of side circular weld, second cross beam component and the second curb girder component.
After completing backing welding, then it is filled front cover weldering in the above sequence to interior annular weld seam and exterior annular weld seam.
In bottoming Welding, using double wire welding technique.Wherein, main silk current range is：110A-120A；Main silk electricity
Press and be：15V-17V；Paranema current range is：90A-100A；Paranema voltage is：12V-14V；Speed of welding is：80cm/min-
85cm/min；Swing width is 1.0mm-1.5mm；Hunting frequency is 180Hz.
The present invention adopts double wire welding technique so that appearance of weld is attractive in appearance, and property of welded joint meets design requirement.
In the same manner, in filling front cover Welding, using double wire welding technique.Main silk current range is：200A-210A；It is main
Filament voltage is：24V-25V；Paranema current range is：210A-220A；Paranema voltage is：27V-29V；Speed of welding is：65cm/
min-70cm/min；Swing width is 1.0mm-1.5mm；Hunting frequency is 180Hz.
It was verified that when welding parameter is located in above range, while welding structure performance demand is met, can be big
It is big to improve welding efficiency.
Fig. 4 is refer to, weld seam welding sequence in backing welding and silk filling front cover weldering, digital table in wherein Fig. 4 in Fig. 4, is given
Show welding sequence.
The backing welding of the same circular weld is different with the arcing point position of filling front cover weldering, and is risen using mariages
Arc, crosses arcing point 0.5mm paranema backfill 0.8s and receives arc.Usually, the arcing point that backing welding, filling weldering, front cover are welded can be along circle
Zhou Junbu, is spaced 120 °.The welding line structure defect that the same point starting the arc so can be avoided as far as possible to cause, improves the strong of welding line structure
Degree.
2nd embodiment
So that component is for curb girder component as an example, each weld seam in curb girder component in framework is carried out using above welding method excellent
Change, it is specific as follows.
Fig. 6 to Fig. 8 is refer to, Fig. 6 is the welding method flow chart of curb girder component in an embodiment of the present invention；Fig. 7 is
The front view of curb girder component in an embodiment of the present invention；Cross-sectional views of the Fig. 8 for curb girder body.
Curb girder component includes being welded with some erection supports in curb girder main body and curb girder main body.For rail vehicle,
The curb girder component (the first curb girder component and the second curb girder component in the 1st embodiment) for forming framework is the weldering for including curb girder main body
Connected components, wherein curb girder main body are box-structure, and box-structure is to be surrounded by four plate body welding, is passed through between adjacent plate body
It is welded and fixed, i.e., the corner of curb girder main body is long weld seam.The both ends of curb girder main body are provided with spring strut, and spring strut is used for pacifying
Shock mount.Spring strut is welded and fixed by circular weld with curb girder main body, because curb girder main body is box-structure, therefore each spring
There is between cylinder and the upper plate body and lower body of curb girder main body upper circular weld and lower circular weld respectively.
It is succinct for description technique scheme, herein the circular weld that curb girder main body is formed with two spring struts is determined
Justice, it is specific as follows：The circular weld formed between the both ends of curb girder main body and two spring struts is respectively defined as first annular weldering
Seam, the second circular weld, the 3rd circular weld and fourth annular weld seam, wherein first annular weld seam are located at the second circular weld
First end arranges that the 3rd circular weld is arranged positioned at the second end up and down with fourth annular weld seam up and down.
It should be noted that with the relative position in Fig. 7 between each part during upper and lower in above-mentioned circular weld technical scheme
Relation is put for description object, the use of the noun of locality herein merely to description technique scheme it is succinct, can not limit herein
Protection domain.
That is, first annular weld seam and the 3rd circular weld are upper circular weld, the second circular weld and Fourth Ring
Shape weld seam is lower circular weld.
Each weld seam includes backing welding and filling front cover weldering, and the backing welding of each weld seam is welded in the following manner：First certainly
The midpoint of long weld seam starts to the first end of curb girder main body to be welded, until completing with the long weld seam to corresponding annular welds
Seam half cycle welding；Then start to the second end of curb girder main body to be welded from the midpoint of the long weld seam again, until complete with
Welding of the long weld seam to corresponding circular weld half cycle；
The backing welding of four long weld seams and circular weld is completed according to above method.
Herein four long weld seams are defined as：First long weld seam, the second long weld seam, the 3rd long weld seam and the 4th long weld seam,
Wherein, the first long weld seam and the 3rd long weld seam are located at same level, and the 4th long weld seam is diagonally arranged with the first long weld seam.Its
In, it is the first long weld seam, the second long weld seam, the 3rd long weld seam and the 4th long weld seam that long weld seam carries out the welding sequence of backing welding.
That is, when bottoming welding is carried out, the welding sequence of each weld seam is：
S200, the midpoint of the first long weld seam are initial solder joint, first complete the first long weld seam to first end welding left half section
Weld the half cycle of first annular weld seam after weld seam again；Then welding gun returns the midpoint of the first long weld seam, welds to the second end
Weld the half cycle of the 3rd circular weld after completing the first half section of weld seam in the long weld seam right side again；
S210, the midpoint of the second long weld seam are initial solder joint, first complete the second long weld seam to first end welding left half section
Weld the second circular weld half cycle after weld seam again；Then welding gun returns the midpoint of the second long weld seam, has welded to the second end
Fourth annular weld seam half cycle is welded again into after the second half section of weld seam in the long weld seam right side；
S220, the midpoint of the 3rd long weld seam are initial solder joint, first complete the 3rd long weld seam to first end welding left half section
Weld first annular weld seam residue half cycle after weld seam again；Then welding gun returns the midpoint of the 3rd long weld seam, welds to the second end
Connect the 3rd circular weld remaining half is welded circumferentially after completing the 3rd half section of weld seam in the long weld seam right side；
S230, the midpoint of the 4th long weld seam are initial solder joint, first complete the 4th long weld seam to first end welding left half section
Weld the second circular weld residue half cycle after weld seam again；Then welding gun returns the midpoint of the 4th long weld seam, welds to the second end
Connect the remaining half cycle for welding fourth annular weld seam after completing the right half section of welding of the 4th long weld seam；
Above-mentioned steps S200 to S230 is repeated in, the backing welding of curb girder component is completed.
Two half cycles of above-mentioned circular weld can be symmetrical with regard to spring strut center longitudinal plane.
In the various embodiments described above, the filling front cover weldering of each weld seam is carried out in the following order：First long weld seam → first annular
Long weld seam → the second circular weld the half cycle of weld seam half cycle → the 3rd circular weld half cycle → the second → fourth annular weld seam half cycle →
3rd long weld seam → first annular weld seam residue half cycle → the 3rd circular weld residue half cycle → the 4th long weld seam → the second is annular
Weld seam residue half cycle → fourth annular weld seam residue half cycle.
Repeat according to sequence described above, complete to fill front cover weldering.
In filling front cover welding, the welding direction of four long weld seams is filled from one end to the other end.Using
The welding method can improve welding efficiency while welding deformation is reduced.
Consideration welding quality and welding efficiency of both factor, offside beam assembly welding procedure ginseng are taken into account herein further
Number is optimized.
In above-mentioned bottoming Welding, using monofilament welding procedure.Wherein, monofilament welding condition is：Tape pulse, electricity
Flowing scope is：140A-150A；Main filament voltage is：15V-17V；Speed of welding is：45cm/min-50cm/min；Swing width is
1.0mm-1.5mm；Hunting frequency 120Hz.
In the various embodiments described above, in the filling front cover Welding, using double wire welding technique.Wherein, double wire welding
Technological parameter is：Tape pulse, main silk current range is：110A-120A；Main filament voltage is：15V-17V；Paranema current range is：
90A-100A；Paranema voltage is：12V-14V；Speed of welding is：80cm/min-85cm/min；Swing width is 1.0mm-
1.5mm；Hunting frequency is 180Hz.
Fig. 7 is refer to, numeral represents welding sequence in Fig. 7, arrow represents welding direction, and wherein 1 to 4 represents backing welding
Welding sequence, digital 5-10 represent the welding sequence and welding direction of filling front cover weldering.
In addition, giving the cross-sectional view of curb girder body in Fig. 8, in figure, numeral represents the welding sequence of the long weld seam of each bar.
3rd embodiment
So that component is as transverse beam assembly as an example, each weld seam in framework middle cross beam component is carried out using above welding method excellent
Change, it is specific as follows
Transverse beam assembly includes first crossbeam body 301, second cross beam body 302 and positioned at two longitudinal directions between the two
Beam, is defined herein as first longitudinal direction beam 303 and second longitudinal direction beam 304.When transverse beam assembly is welded, carry out in the following manner：
The weld joint on inner side that S300, two longitudinal beams of welding and both sides cross-beam body are formed；
Specifically, two longitudinal beams are generally dovetail configuration weld seam, the first face with the weld joint on inner side that both sides cross-beam body is formed
With respectively have four weld seams on the second face, totally eight weld seams, the welding manner of eight weld seams can be as follows：
All weld joint on inner side on S301, the first face of welding；
All weld joint on inner side on S302, the second face of welding；
Wherein, the weld joint on inner side that two longitudinal beams on the same face are formed alternately is welded, and front two weld seam is located at the same side.
The remaining backing plate when weld seam can increase remaining of the dovetail weld seam that two longitudinal beams are formed with both sides cross-beam body (does not have in text
Illustrate, but hinder understanding of the those skilled in that art to technical scheme), extend starting the arc defect, and make cornerite in order to avoid
There is weld defect.
S310, the weld seam for welding other parts and the formation of respective girders body.
It should be noted that two cross-beam body opposite sides are defined as inner side herein.Each weld joint on inner side is in such a way
Welding：All weld joint on inner side on the first face are first welded, then welds all weld joint on inner side on the second face, wherein, per in one side
During the welding of each weld joint on inner side, welded by center outward.
It should be noted that be assembled on car body as reference with transverse beam assembly, transverse beam assembly one side upward, also referred to as just
Face, referred to as one side of the transverse beam assembly towards track, the back side.It is preferred herein define the first face be front, the second face back side.Please join
Examine the front plan view of Fig. 9 and Figure 10, Fig. 9 for transverse beam assembly；Back side upward views of the Figure 10 for transverse beam assembly.
In addition, herein when welding direction is described, centered on transverse beam assembly center cross-sectional location is defined, will
Direction near this body of crossbeam two ends is defined as outer end.
The weld joint on inner side that two longitudinal beams on the same face are formed alternately is welded, and front two weld seam is located at the same side.Also
It is to say, first welds two weld seams of two longitudinal beams and same cross-beam body, then two welderings for welding two longitudinal beams and another cross-beam body
Seam.As a example by first welding the weld seam that first crossbeam body 301 is formed with first longitudinal direction beam, two longitudinal beams are formed with two cross-beam bodies
The welding sequence of weld joint on inner side be：First longitudinal direction beam is horizontal with first with first crossbeam 301 side welds of body → second longitudinal direction beam
The weld joint on inner side of beam body 301 → first longitudinal direction beam is horizontal with second with second cross beam 302 weld joint on inner side of body → second longitudinal direction beam
302 weld joint on inner side of beam body.
In the various embodiments described above, step S310 is specifically as follows：
S311, each parts being welded on two cross-beam bodies are grouped according to loading, parts position, are grouped
Foundation：First group will be divided on same cross-beam body and with regard to the asymmetrical parts of center cross-sectional, will be positioned at same
It is divided into second group on cross-beam body and with regard to the symmetrical parts of center cross-sectional；
S312, the welding for being first sequentially completed each parts weld seam in first group, then each parts weld seam in carrying out second group
Welding.
Specifically, when each parts are welded in first group, after being sequentially completed the welding of each weld seam in the first face, then successively
The welding of each weld seam in the second face is carried out, the welding of each parts weld seam in second group is then carried out；
Weld seam in wherein first group on the first face of each parts and the second face is welded in the following manner：Staggeredly weld
The weld seam being formed on two cross-beam bodies, the big weld seam of preferential welding loading, and the welding direction of each weld seam is by outer
Hold to center weld.
By taking the conventional transverse beam assembly of rail vehicle as an example, 306 He of motor hanger is installed on first crossbeam body 301
First gear case flap seat 308；Two motor hangers 305 and second gear case flap seat 307 are housed on second cross beam body 302.And
The above two and rear both of which are asymmetric with regard to center cross-sectional.
Also, the welding capacity of a motor hanger 306 and two motor hangers 305 is all higher than first gear case flap seat 308
With the welding capacity of second gear case flap seat 307, therefore select welding sequence when, preferably first weld a motor hanger 306 or two
Position motor hanger 305, wherein both welding capacity are more or less the same, and can first weld a motor hanger 306, or select first to weld
Connecing two motor hangers 305 affects little to component post welding distortion amount.I.e., it is possible to first weld a motor hanger 306 can also
Two motor hangers 305 are welded first.Two motor hangers 305 are first welded herein preferably.
After the welding in the first face of longitudinal beam and the second face described in two is completed, then the welding of all weld seams in the first face is carried out,
Then the welding of all weld seams in the second face is carried out again, and in first group, the first face of parts and the second face are welded in the following order
Connect：Two motor hangers, 305, motor hanger 306, second gear case 307, first gear case 308 and respective girders body
The weld seam of formation.That is more than on the first face and the second face, the concrete welding sequence of each weld seam is：
Weld seam → mono- motor hanger and first crossbeam body 301 of two motor hangers 305 and second cross beam body 302
Weld seam → second gear case 307 and second cross beam body 301 weld seam → first gear case 308 and first crossbeam body 301
Weld seam.
Parts in second group include being installed on the first braking flap seat 309 and second on the outside of first crossbeam body 301
Braking flap seat 310, and the 3rd braking braking flap seat of flap seat the 311, the 4th being installed on the outside of the second cross beam body 302
312；Respectively the welding sequence of braking flap seat is：The welding of one group of braking flap seat on a wherein cross-beam body is first completed, then is carried out another
The welding of one group of braking flap seat on one cross-beam body, after completing the welding of the first face of each braking flap seat weld seam, then carries out the second face
The welding of weld seam, and respectively brake flap seat welding direction by center outward.
Also include the first anti-side rolling torsion rod seat 313 and the rolling torsion of the second anti-side positioned at second cross beam body 302 in second group
Pole socket 314, two rolling torsion bar seats are symmetrical with regard to center cross-sectional, in the welding in the first face and the second face for completing above braking flap seat
Afterwards, the first anti-side rolling torsion rod seat 313 and the second anti-side rolling torsion rod seat 314 is welded, and welding direction is from center to two ends.
The equal ecto-entad of weld seam welding direction of wherein above-mentioned each flap seat.As shown in Figure 9 and Figure 10, show in figure that the above is each
The welding sequence of parts：①②③④⑤⑥⑦⑧⑨⑩
In above transverse beam assembly, the welding procedure of the weld seam of each group parts includes backing welding, filling weldering and front cover weldering,
And three adopts double wire welding；After each weld seam is sequentially completed backing welding, then filling weldering is sequentially completed, is finally sequentially completed envelope
Weld in face.
In the various embodiments described above, in transverse beam assembly, the technological parameter of backing welding is：Main silk electric current 110A～120A, voltage：
15V～17V, paranema electric current：90A～100A；Voltage：12V～14V；Speed of welding：80cm/min～85cm/min, swings wide
Degree:1.5mm；Hunting frequency：180Hz.
In the various embodiments described above, the technological parameter for filling weldering in transverse beam assembly is：Main silk electric current 190A～210A, voltage：
22V～23V, paranema electric current：200A～210A, voltage：24V～25V, speed of welding：60cm/min～65cm/min, swings wide
Degree:2mm, hunting frequency：180Hz.
In various embodiments above, in transverse beam assembly, the technological parameter of front cover weldering is：Main silk electric current 200A～210A, voltage：
24V～25V, paranema electric current：210A～220A, voltage：27V～29V, speed of welding：65cm/min～70cm/min, swings wide
Degree:1.5mm, hunting frequency：180Hz.
Above a kind of welding method of rail vehicle curb girder component provided by the present invention is described in detail.Herein
In apply specific case the principle of the present invention and embodiment be set forth, the explanation of above example is only intended to side
Assistant solves the method for the present invention and its core concept.It should be pointed out that for those skilled in the art, not
On the premise of departing from the principle of the invention, some improvement and modification can also be carried out to the present invention, these improve and modification also falls into
In the protection domain of the claims in the present invention.
Claims (8)
1. the welding method of rail vehicle curb girder component, it is characterised in that the curb girder component includes surrounding the side of box-structure
Beam main body and the spring strut positioned at the curb girder main body both ends, the corner of the curb girder main body is long weld seam,
The circular weld formed between spring strut described in the both ends and two of the curb girder main body is respectively defined as first annular weldering
Seam, the second circular weld, the 3rd circular weld and fourth annular weld seam, wherein described first annular weld seam and the second circular weld
Positioned at first end and both arrange up and down, the 3rd circular weld and fourth annular weld seam are located at the second end and two
Person arranges up and down；
The welding procedure of each weld seam includes backing welding and filling front cover weldering, and the backing welding of each weld seam is carried out in the following manner
Welding：First welded from the midpoint of long weld seam to the first end of the curb girder main body, until completing relative with the long weld seam
The circular weld half cycle welding answered；Then welding gun returns the midpoint of the long weld seam, and the second end to the curb girder main body enters
Row welding, until complete to weld to corresponding circular weld half cycle with the long weld seam；Four long weld seams are completed according to above step
And the backing welding of circular weld.
2. the welding method of rail vehicle curb girder component as claimed in claim 1, it is characterised in that four long weld seams are fixed respectively
Justice is the first long weld seam, the second long weld seam, the 3rd long weld seam and the 4th long weld seam, wherein, the first long weld seam and described the
Three long weld seams are located at same level, and the 4th long weld seam is diagonally arranged with the described first long weld seam；
Wherein, the welding sequence that long weld seam carries out backing welding is：
S200, the midpoint of the first long weld seam are initial solder joint, first complete the first half section of weld seam in a long weld seam left side to first end welding
Weld the half cycle of first annular weld seam afterwards again；Then welding gun returns the midpoint of the first long weld seam, completes to the second end welding
Weld the half cycle of the 3rd circular weld after the first half section of weld seam in the long weld seam right side again；
S210, the midpoint of the second long weld seam are initial solder joint, first complete the second half section of weld seam in a long weld seam left side to first end welding
Weld the second circular weld half cycle afterwards again；Then welding gun returns the midpoint of the second long weld seam, completes the to the second end welding
Fourth annular weld seam half cycle is welded again after the two half section of weld seam in the long weld seam right side；
S220, the midpoint of the 3rd long weld seam are initial solder joint, first complete the 3rd half section of weld seam in a long weld seam left side to first end welding
Weld first annular weld seam residue half cycle afterwards again；Then welding gun returns the midpoint of the 3rd long weld seam, has welded to the second end
The 3rd circular weld remaining half is welded circumferentially into after the 3rd half section of weld seam in the long weld seam right side；
S230, the midpoint of the 4th long weld seam are initial solder joint, first complete the 4th half section of weld seam in a long weld seam left side to first end welding
Weld the second circular weld residue half cycle afterwards again；Then welding gun returns the midpoint of the 4th long weld seam, has welded to the second end
The remaining half cycle of fourth annular weld seam is welded into after the right half section of welding of the 4th long weld seam；
Above-mentioned steps S200 to S230 is repeated in, the backing welding of curb girder component is completed；
Wherein, two half cycles of above-mentioned circular weld are symmetrical with regard to spring strut center longitudinal plane.
3. the welding method of rail vehicle curb girder component as claimed in claim 2, it is characterised in that the filling of each weld seam
Front cover weldering is carried out in the following order：First long weld seam → first annular weld seam half cycle → the 3rd circular weld half cycle → the second length weldering
Seam the → the second circular weld half cycle → three long weld seam of fourth annular weld seam half cycle → the → first annular weld seam residue half cycle → the
Long weld seam → the second circular weld residue the half cycle of three circular welds residue half cycle → 4th → fourth annular weld seam residue half cycle.
4. the welding method of rail vehicle curb girder component as claimed in claim 3, it is characterised in that in filling front cover welding
In, the welding direction of four long weld seams is filled from one end to the other end.
5. the welding method of rail vehicle curb girder component as claimed in claim 1, it is characterised in that in the bottoming Welding
In, using monofilament welding procedure.
6. the welding method of rail vehicle curb girder component as claimed in claim 5, it is characterised in that the monofilament welding procedure
Parameter is：Tape pulse, current range is：140A-150A；Main filament voltage is：15V-17V；Speed of welding is：45cm/min-
50cm/min；Swing width is 1.0mm-1.5mm；Hunting frequency 120Hz.
7. the welding method of rail vehicle curb girder component as claimed in claim 1, it is characterised in that in the filling front cover weldering
In technique, using double wire welding technique.
8. the welding method of rail vehicle curb girder component as claimed in claim 7, it is characterised in that the double wire welding technique
Parameter is：Tape pulse, main silk current range is：110A-120A；Main filament voltage is：15V-17V；Paranema current range is：90A-
100A；Paranema voltage is：12V-14V；Speed of welding is：80cm/min-85cm/min；Swing width is 1.0mm-1.5mm.
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