CN106270929A - The welding method of railway vehicle component - Google Patents
The welding method of railway vehicle component Download PDFInfo
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- CN106270929A CN106270929A CN201610875186.4A CN201610875186A CN106270929A CN 106270929 A CN106270929 A CN 106270929A CN 201610875186 A CN201610875186 A CN 201610875186A CN 106270929 A CN106270929 A CN 106270929A
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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
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Abstract
The invention discloses the present invention and the welding method of a kind of railway vehicle component is provided, on this assembly, the welding method of each weld seam is specific as follows: first obtains the welding quality corresponding to different welding sequences, welding efficiency that all weld seams are formed, and sets up welding sequence and welding quality, the relation of welding efficiency；Consider welding cost the most again and weld heat input at least one factor determines actual welding quality and welding efficiency, choose, in welding quality, welding efficiency relation, the welding sequence that the welding sequence of weld seam operates as actual welding from above-mentioned weld seam order according to the above-mentioned actual welding quality determined and welding efficiency；Consider manufacturing cost, weld heat input, welding quality, welding efficiency aspect herein, find optimum welding sequence.
Description
Technical field
The present invention relates to rail vehicle welding technology field, particularly to the welding method of a kind of railway vehicle component.
Background technology
Rail vehicle framework primarily serves the purpose of transmission load and provides support for suspension and other auxiliary device, therefore
It must have enough intensity.
The main body of rail vehicle framework mainly includes multiple transverse beam assembly and multiple curb girder assembly, commonly used in the prior art
Framework is that H type component, i.e. transverse beam assembly become H type with curb girder assembling components.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 is 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, and curb girder assembly is provided with spring support, and it is main
There is provided for air spring and support；Being additionally provided with snakelike amortisseur and on curb girder assembly is damper bracket.
The most each support is all to be welded in curb girder main body and main body of cross-beam by welding procedure.It is known that welding is held
It is easily caused parts thermal deformation, causes the scale error welding rear cross beam assembly and curb girder assembly the biggest.Application condition is big
Transverse beam assembly and curb girder components welding formed after framework, the welding deformation amount of framework more difficulty or ease control.Therefore framework welding
The control of deflection always this area needs the difficult problem overcome.
Therefore, how to drop low-built welding deformation amount, be those skilled in that art's technical problems urgently to be resolved hurrily.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides the welding method of railway vehicle component, each weld seam on this assembly
Welding method specific as follows:
S1, obtain the welding quality corresponding to different welding sequences, welding efficiency that all weld seams are formed, and set up welding
Order and welding quality, the relation of welding efficiency；
S2, consider welding cost and weld heat input at least one factor determines welding quality and the welding effect of reality
Rate, according to the above-mentioned actual welding quality determined and welding efficiency from above-mentioned weld seam order and welding quality, welding efficiency relation
In choose the welding sequence that the welding sequence of weld seam operates as actual welding.
Optionally, obtain welding cost and welding quality, the relation of welding efficiency, weld heat input the most simultaneously
With welding quality, the relation of welding efficiency；
Consider that described welding cost and described weld heat input two factor determine described welding quality the most simultaneously
With described welding efficiency.
Optionally, obtain under different welding sequence by numerical simulation in step sl, welding quality and welding efficiency
Curve chart；Under different welding costs, welding quality and the curve chart of welding efficiency；Under different welding efficiency, welding quality and weldering
Connect the curve chart of efficiency；
Calculate the intersection point of three curves in step s 2, and the welding corresponding to this intersection point is grasped as actual welding in proper order
The welding sequence made.
Optionally, described assembly is framework, this framework include being positioned at the first curb girder assembly of both sides, the second curb girder assembly with
And be supported between the beam assembly of both sides first crossbeam assembly, second cross beam assembly, described first crossbeam assembly and described second
The two ends of transverse beam assembly extend through curb girder assembly described in two and form circular weld to be welded, first weld each described crossbeam successively
The interior annular weld seam that assembly is formed with described curb girder assembly, welds each described transverse beam assembly and described curb girder group the most successively
The exterior annular weld seam that part is formed；
The most each described interior annular weld seam welds in the following order: first crossbeam assembly and described first curb girder group
Interior annular weld seam → second cross beam the assembly of part and the interior annular weld seam → first crossbeam assembly of described first curb girder assembly
Interior annular weld seam with the interior annular weld seam → second cross beam assembly of the second curb girder assembly Yu described second curb girder assembly.
Optionally, each described exterior annular weld seam welds in the following order: first crossbeam assembly and described first side
Exterior annular weld seam → second cross beam the assembly of beam assembly and exterior annular weld seam → described first of described first curb girder assembly
Exterior annular weld seam → described second cross beam the assembly of transverse beam assembly and described second curb girder assembly and described second curb girder assembly
Exterior annular weld seam.
Optionally, each described circular weld all includes two procedures: backing welding and filling front cover weld；And when welding,
After first all weld seams being carried out backing welding successively, then it is filled with front cover weldering successively.
Optionally, in described backing welding technique, use double wire welding technique.
Optionally, described double wire welding technological parameter is: tape pulse, and main silk current range is: 110A-120A；Main silk electricity
Pressure 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.
Optionally, in described filling front cover Welding, use double wire welding technique.
Optionally, described double wire welding technological parameter is: tape pulse, and main silk current range is: 200A-210A；Main silk electricity
Pressure 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.
Optionally, the backing welding of same described circular weld, the arcing point position difference of filling front cover weldering, and use double
The silk starting the arc, crosses arcing point 0.5mm paranema backfill 0.8s and receives arc.
Optionally, described assembly is curb girder assembly, curb girder main body that described curb girder assembly includes surrounding box-structure and
Being positioned at the spring strut at described curb girder main body both ends, the corner of described curb girder main body is long weld seam,
The circular weld formed between spring strut described in the both ends and two of described 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 said first annular weld seam and the second annular
Weld seam is positioned at first end and arranges up and down, and described 3rd circular weld is positioned at the second end with fourth annular weld seam and arranges up and down；
The welding procedure of each weld seam all includes backing welding and fills front cover weldering, and the backing welding of each described weld seam is in the following manner
Weld: first weld to the first end of described curb girder main body from the midpoint of long weld seam, until completing and this long weld seam
Corresponding circular weld half cycle welding；Then welding gun returns the midpoint of this long weld seam, to the second end of described curb girder main body
Portion welds, until completing with this long weld seam to corresponding circular weld half cycle welding；According to above step complete four long
Weld seam and the backing welding of circular weld.
Optionally, four long weld seams are respectively defined as the long weldering of the first long weld seam, the second long weld seam, the 3rd long weld seam and the 4th
Seam, wherein, described first long weld seam and described 3rd long weld seam are positioned at same level, described 4th long weld seam and described first
Long weld seam diagonal angle is arranged；
Wherein, long weld seam carries out the welding sequence of backing welding and is:
S200, the midpoint of the first long weld seam are initial solder joint, have first welded left half section of the first long weld seam to first end
The half cycle of first annular weld seam is welded again after weld seam；Then welding gun returns the midpoint of the first long weld seam, welds to the second end
The half cycle of the 3rd circular weld is welded again after completing the right half section of weld seam of the first long weld seam；
S210, the midpoint of the second long weld seam are initial solder joint, have first welded left half section of the second long weld seam to first end
The second circular weld half cycle is welded again after weld seam；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 after becoming the right half section of weld seam of the second long weld seam；
S220, the midpoint of the 3rd long weld seam are initial solder joint, have first welded left half section of the 3rd long weld seam to first end
First annular weld seam residue half cycle is welded again after weld seam；Then welding gun returns the midpoint of the 3rd long weld seam, welds to the second end
The 3rd circular weld residue half circumference is welded after having connect the right half section of weld seam of the 3rd long weld seam；
S230, the midpoint of the 4th long weld seam are initial solder joint, have first welded left half section of the 4th long weld seam to first end
The second circular weld residue half cycle is welded again after weld seam；Then welding gun returns the midpoint of the 4th long weld seam, welds to the second end
The residue half cycle of fourth annular weld seam is welded after having connect the right half section of welding of the 4th long weld seam；
It is repeated in above-mentioned steps S200 to S230, completes the backing welding of curb girder assembly；
Wherein, two half cycles of above-mentioned circular weld can be symmetrical about spring strut center longitudinal plane.
Optionally, the filling front cover weldering of each described weld seam is carried out in the following order: the first long weld seam → first annular weld seam
Half cycle → the 3rd circular weld half cycle → the second long weld seam → the second circular weld half cycle → fourth annular weld seam half cycle → 3rd
Long weld seam → first annular weld seam residue half cycle → the 3rd circular weld residue long weld seam → the second circular weld of half cycle → 4th
Residue half cycle → fourth annular weld seam residue half cycle.
Optionally, in filling front cover welding, the welding direction of four long weld seams is all to fill out to the other end from one end
Fill.
Optionally, in described backing welding technique, use monofilament welding procedure.
Optionally, described monofilament welding condition is: tape pulse, and 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 described filling front cover Welding, use double wire welding technique.
Optionally, described double wire welding technological parameter is: tape pulse, and main silk current range is: 110A-120A；Main silk electricity
Pressure 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.
Optionally, described assembly is transverse beam assembly, described transverse beam assembly include first crossbeam body, second cross beam body,
Be positioned at two longitudinal beams between the two and lay respectively on described first crossbeam body and described second cross beam body its
His parts；When transverse beam assembly is welded, carry out in the following manner:
The weld joint on inner side that longitudinal beam described in S300, welding two is formed with both sides cross-beam body；
S310, weld the weld seam that other parts and respective girders body are formed.
Optionally, in step S300, each described weld joint on inner side welds in such a way:
S301, the upper all weld joint on inner side of welding first；
All weld joint on inner side in S302, welding second；
Wherein, the weld joint on inner side that two longitudinal beams on the same face are formed alternately welds, and front two weld seams are positioned at the same side.
Optionally, when each weld joint on inner side in every one side welds, welding direction is for be welded outward by center.
Optionally, step S310 particularly as follows:
S311, according to loading, parts position, each parts being welded on two cross-beam bodies are grouped, packet
Foundation: will be located in being divided into first group on same cross-beam body and about the asymmetrical parts of center cross-sectional, will be located in same
It is divided into second group on cross-beam body and about the parts that center cross-sectional is symmetrical；
S312, first it is sequentially completed the welding of each parts weld seam in first group, then carries out each parts weld seam in second group
Welding.
Optionally, when in first group, each parts weld, after being sequentially completed the welding of first each weld seam, more successively
Carry out the welding of second each weld seam, then carry out the welding of each parts weld seam in second group；
Wherein the weld seam on each parts first and second welds in the following manner in first group: staggered welding
It is formed at the weld seam on two cross-beam bodies, the weld seam that preferential welding loading is big, and the welding direction of each weld seam is all for by outward
End is to center weld.
Optionally, the parts of described first group include a motor hanger being installed on described first crossbeam body and
First gear box bracket, and two motor hangers being installed on second cross beam body and the second gear box bracket；Carry out
During first group of parts welding, first and second is welded the most in the following order: two motor hangers, motors hang
The weld seam that seat, the second gear-box, the first gear-box are formed with respective girders body.
Optionally, the parts in described second group include the first brake hanging being installed on described first crossbeam outer body
Seat and the second braking flap seat, and it is installed on the 3rd braking flap seat of described second cross beam outer body, the 4th braking flap seat；Respectively
The welding sequence of braking flap seat is: first completes the welding of one group of braking flap seat on a wherein cross-beam body, then carries out another crossbeam
On body, the welding of one group of braking flap seat, after completing the welding of each first weld seam of braking flap seat, then carries out second weld seam
Welding, and respectively brake the welding direction of flap seat by center outward.
Optionally, the welding procedure of the weld seam of each group parts all includes backing welding, fills weldering and front cover weldering, and three
All use double wire welding；After each weld seam is sequentially completed backing welding, then it is sequentially completed filling weldering, is finally sequentially completed front cover weldering.
Optionally, the technological parameter of described backing welding is: main silk electric current 110A～120A, voltage: 15V～17V, paranema electricity
Stream: 90A～100A；Voltage: 12V～14V；Speed of welding: 80cm/min～85cm/min, swing width: 1.5mm；Swing frequency
Rate: 180Hz.
Optionally, the described technological parameter welded of filling is: main silk electric current 190A～210A, voltage: 22V～23V, paranema electricity
Stream: 200A～210A, voltage: 24V～25V, speed of welding: 60cm/min～65cm/min, swing width: 2mm, swings frequency
Rate: 180Hz.
Optionally, the technological parameter of described front cover weldering is: main silk electric current 200A～210A, voltage: 24V～25V, paranema electricity
Stream: 210A～220A, voltage: 27V～29V, speed of welding: 65cm/min～70cm/min, swing width: 1.5mm, swings frequency
Rate: 180Hz.
Consider manufacturing cost, weld heat input, welding quality, welding efficiency aspect herein, find optimum welding suitable
Sequence.
Accompanying drawing explanation
Fig. 1 be in an embodiment of the present invention manufacturing cost, welding sequence, weld heat input respectively with welding efficiency, weldering
Connect the curve relation figure of quality；
Fig. 2 is the welding method flow chart of an embodiment of the present invention middle orbit vehicle assembly；
Fig. 3 is the welding method flow chart of 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；
Fig. 5 is the sectional view of circular weld；
Fig. 6 is the welding method flow chart of curb girder assembly in an embodiment of the present invention；
Fig. 7 is the front view of curb girder assembly in an embodiment of the present invention；
Fig. 8 is the cross sectional representation of curb girder body；
Fig. 9 is the front plan view of transverse beam assembly；
Figure 10 is the back side upward view of transverse beam assembly.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with 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 that in an embodiment of the present invention, manufacturing cost, welding sequence, weld heat input divide
Not and welding efficiency, the curve relation figure of welding quality；Fig. 2 is the welding side of an embodiment of the present invention middle orbit vehicle assembly
Method flow chart.
There is provided herein the welding method of a kind of railway vehicle component, the kind of railway vehicle component is a lot, main
It is to be introduced as a example by framework, curb girder assembly and transverse beam assembly for assembly.Certain welding method in this paper can also be answered
In the welding of other assemblies.
Rail vehicle framework mainly includes two curb girder assemblies and is supported in both sides beam assembly, herein by two curb girder groups
Part is defined as the first curb girder assembly and the second curb girder assembly.Arranging about the first curb girder assembly and the second curb girder assembly, 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
Assembly, the i.e. both ends of first crossbeam assembly and second cross beam assembly extend through the first curb girder assembly and the second curb girder assembly.
First curb girder assembly and the second curb girder assembly are mainly body structure, thus first crossbeam assembly, second cross beam assembly and each
Curb girder assembly all has two circular welds to be welded: interior annular weld seam and exterior annular weld seam.
It is to say, two transverse beam assemblies and two longeron assemblies 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:
S1, obtain the welding quality corresponding to different welding sequences, welding efficiency that all weld seams are formed, and set up welding
Order and welding quality, the relation of welding efficiency；
Specifically, the threedimensional model of assembly can be pre-build, then each weld seam in model component is numbered, enters
And permutation and combination obtains some bond pads order, obtain welding quality and welding by the weld seam welding of the different welding sequence of simulation
Efficiency.Different weldering can be obtained further by the discrete many bond pads quality obtained and welding efficiency being carried out numerical simulation
Connect the lower welding quality of order and the curve chart of welding efficiency.
S2, consider welding cost and weld heat input at least one factor determines welding quality and the welding effect of reality
Rate, according to fixed actual welding quality and welding efficiency from above-mentioned weld seam order with in welding quality, welding efficiency relation
Choose the welding sequence that the welding sequence of weld seam operates as actual welding.
Specifically, the relation between welding cost and welding quality, welding efficiency can also be obtained by modeling Simulation, with
Relation between reason weld heat input and 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, obtain under different welding sequence by numerical simulation in step sl, welding quality and welding efficiency
Curve chart；Under different welding costs, welding quality and the curve chart of welding efficiency；Under different welding efficiency, welding quality and weldering
Connect the curve chart of efficiency.
As it is shown in figure 1, three curves are respectively as follows: manufacturing cost and welding efficiency, the relation curve of welding quality in Fig. 1,
Welding sequence is bent with the relation of welding efficiency, welding quality with welding efficiency, the relation curve of welding quality, weld heat input
Line.From figure 1 it appears that weld heat input is the biggest, welding quality is the poorest but welding efficiency is the highest；Welding quality is the biggest and welds
Connect the highest corresponding welding cost of efficiency the highest.
Calculate the intersection point of three curves in step s 2, and the welding sequence corresponding to this intersection point is grasped as actual welding
The welding sequence made.
Consider manufacturing cost, weld heat input, welding quality, welding efficiency aspect herein, find optimum welding suitable
Sequence.
1st embodiment
As a example by assembly is as framework, use the annular that curb girder assembly in framework is formed by above welding method with transverse beam assembly
Weld seam is optimized, specific as follows.
Refer to the welding method flow chart that Fig. 3 to Fig. 5, Fig. 3 are 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；Fig. 5 is the sectional view of circular weld.
The invention provides the welding method of a kind of rail vehicle framework, the welding method of this framework is specific as follows:
S100, weld the interior annular weld seam that each transverse beam assembly and curb girder assembly are formed successively；
Wherein, each interior annular weld seam welds in the following order: first crossbeam assembly and the first curb girder assembly interior
Interior annular weld seam → first crossbeam the assembly of side circular weld → second cross beam assembly and the first curb girder assembly and the second curb girder
Interior annular weld seam → second cross beam the assembly of assembly and the interior annular weld seam of the second curb girder assembly.
S110, weld the exterior annular weld seam that each transverse beam assembly and curb girder assembly are formed successively.
Each described exterior annular weld seam welds in the following order: first crossbeam assembly and described first curb girder assembly
Exterior annular weld seam → second cross beam assembly and the exterior annular weld seam → described first crossbeam assembly of described first curb girder assembly
Outer side ring with the exterior annular weld seam of described second curb girder assembly → described second cross beam assembly Yu described second curb girder assembly
Shape weld seam.
From the above, it can be seen that exterior annular weld seam takes the mode about the symmetrical welding of center cross-sectional.
The welding method of rail vehicle framework provided by the present invention, is divided into two classes by circular weld, first depends in order
Secondary welding interior annular weld seam, then welds exterior annular weld seam, interior annular weld seam and outside successively according still further to a definite sequence
Circular weld is all taked about the symmetrical welding manner successively of center cross-sectional.So can effectively control framework internal with outward
The weldquality in portion, on the basis of ensureing that postwelding framework deflection is less, improves production efficiency as far as possible and reduces production cost.
Test proves, compared with the solder technology conventional with prior art, utilizes the framework that welding method completes herein, crossbeam
Assembly adjusting amount can be controlled in 0.5mm, and curb girder assembly adjusting amount can be controlled in 1.5mm, and the adjusting amount of framework entirety controls
Within 2.3mm, effectively reduce the amount of taking off 40% according to this technique, greatly reduce the deflection of framework, substantially increase production
Efficiency.
Specifically, above-mentioned each circular weld all includes two procedures: backing welding and filling front cover weld；Backing welding forms bottoming
Layer, filling front cover weldering are specifically divided into filling weldering and front cover weldering, formation packed layer and sealing coat respectively.
And when welding, after first all weld seams being carried out backing welding successively, then it is filled with front cover weldering successively.
It is to say, first from inside to outside in the above sequence interior annular weld seam and exterior annular weld seam being completed backing welding
After, the order of backing welding is: first crossbeam assembly and the interior annular weld seam of the first curb girder assembly, second cross beam assembly and first
The interior annular weld seam of curb girder assembly, first crossbeam assembly and the interior annular weld seam of the second curb girder assembly, second cross beam assembly
With interior annular weld seam, first crossbeam assembly and the exterior annular weld seam of the first curb girder assembly of described second curb girder assembly,
Outside two transverse beam assemblies and the exterior annular weld seam of described first curb girder assembly, first crossbeam assembly are with described second curb girder assembly
Side circular weld, second cross beam assembly and the exterior annular weld seam of described second curb girder assembly.
After completing backing welding, more in the above sequence interior annular weld seam and exterior annular weld seam are filled with front cover weldering.
In backing welding technique, use double wire welding technique.Wherein, main silk current range is: 110A-120A；Main silk electricity
Pressure 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.
The present invention uses double wire welding technique so that appearance of weld is attractive in appearance, and property of welded joint meets design requirement.
In like manner, in filling front cover Welding, use double wire welding technique.Main silk current range is: 200A-210A；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 positioned at above-mentioned scope, while meeting Welding Structure performance demand, can be big
Improve greatly welding efficiency.
Refer to Fig. 4, Fig. 4 gives weld seam welding sequence, wherein numeral table in Fig. 4 in backing welding and the front cover weldering that fills silk
Show welding sequence.
The backing welding of same described circular weld is different with the arcing point position filling front cover weldering, and uses mariages to rise
Arc, crosses arcing point 0.5mm paranema backfill 0.8s and receives arc.Usually, the arcing point that backing welding, filling weldering, front cover weld can be along circle
Zhou Junbu, is spaced 120 °.So can avoid the welding line structure defect that the same point starting the arc causes as far as possible, improve the strong of welding line structure
Degree.
2nd embodiment
As a example by assembly is for curb girder assembly, above welding method is used to carry out excellent to weld seam each in curb girder assembly in framework
Change, specific as follows.
Refer to the welding method flow chart that Fig. 6 to Fig. 8, Fig. 6 are curb girder assembly in an embodiment of the present invention；Fig. 7 is
The front view of curb girder assembly in an embodiment of the present invention；Fig. 8 is the cross sectional representation of curb girder body.
Curb girder assembly includes being welded with some erection supports in curb girder main body and curb girder main body.For rail vehicle,
The curb girder assembly (the first curb girder assembly in the 1st embodiment and the second curb girder assembly) forming framework is the weldering including curb girder main body
Connected components, wherein curb girder main body is box-structure, and box-structure, for being surrounded by four plate body welding, is passed through between adjacent plate body
Be 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
It is respectively provided with circular weld and lower circular weld between cylinder and the upper plate body of curb girder main body and lower body.
Succinct for description technique scheme, is determined with the circular weld that two spring struts are formed curb girder main body herein
Justice, specific as follows: the circular weld formed between both ends and two spring struts of 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, the most first annular weld seam and the second circular weld are positioned at
First end is arranged up and down, and the 3rd circular weld is positioned at the second end with fourth annular weld seam and arranges up and down.
It should be noted that with the phase para-position between parts each in Fig. 7 during upper and lower in above-mentioned circular weld technical scheme
The relation of putting is description object, and the use of the noun of locality is merely to description technique scheme succinct herein, can not limit herein
Protection domain.
It is to say, 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 all includes backing welding and fills front cover weldering, and the backing welding of each weld seam welds in the following manner: the most certainly
The midpoint of long weld seam starts to weld to the first end of curb girder main body, until completing with this long weld seam to corresponding annular welds
Seam half cycle welding；Midpoint from this long weld seam starts to weld to the second end of curb girder main body the most again, until complete with
This long weld seam is to the welding of corresponding circular weld half cycle；
Four long weld seams and the backing welding of circular weld are completed according to above method.
Herein four long weld seams are defined as: 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 the 3rd long weld seam are positioned at same level, and the 4th long weld seam and the first long weld seam diagonal angle are arranged.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.
It is to say, when carrying out bottoming welding, the welding sequence of each weld seam is:
S200, the midpoint of the first long weld seam are initial solder joint, have first welded left half section of the first long weld seam to first end
The half cycle of first annular weld seam is welded again after weld seam；Then welding gun returns the midpoint of the first long weld seam, welds to the second end
The half cycle of the 3rd circular weld is welded again after completing the right half section of weld seam of the first long weld seam；
S210, the midpoint of the second long weld seam are initial solder joint, have first welded left half section of the second long weld seam to first end
The second circular weld half cycle is welded again after weld seam；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 after becoming the right half section of weld seam of the second long weld seam；
S220, the midpoint of the 3rd long weld seam are initial solder joint, have first welded left half section of the 3rd long weld seam to first end
First annular weld seam residue half cycle is welded again after weld seam；Then welding gun returns the midpoint of the 3rd long weld seam, welds to the second end
The 3rd circular weld residue half circumference is welded after having connect the right half section of weld seam of the 3rd long weld seam；
S230, the midpoint of the 4th long weld seam are initial solder joint, have first welded left half section of the 4th long weld seam to first end
The second circular weld residue half cycle is welded again after weld seam；Then welding gun returns the midpoint of the 4th long weld seam, welds to the second end
The residue half cycle of fourth annular weld seam is welded after having connect the right half section of welding of the 4th long weld seam；
It is repeated in above-mentioned steps S200 to S230, completes the backing welding of curb girder assembly.
Two half cycles of above-mentioned circular weld can be symmetrical about 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: the first long weld seam → first annular
Weld seam half cycle → the 3rd circular weld half cycle → the second long weld seam → the second circular weld half cycle → 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 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 all to be filled with to the other end from one end.Use
This welding method, while reducing welding deformation, can improve welding efficiency.
Taking into account factor of both consideration welding quality and welding efficiency the most further, offside beam assembly welding procedure is joined
Number is optimized.
In above-mentioned backing welding technique, use monofilament welding procedure.Wherein, monofilament welding condition is: tape pulse, electricity
Stream 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 described filling front cover Welding, use double wire welding technique.Wherein, double wire welding
Technological parameter is: tape pulse, and 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.
Refer to Fig. 7, in Fig. 7, numeral represents welding sequence, and arrow represents welding direction, and wherein 1 to 4 represents backing welding
Welding sequence, numeral 5-10 represents welding sequence and the welding direction filling front cover weldering.
It addition, give 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
As a example by assembly is as transverse beam assembly, above welding method is used to carry out excellent to each weld seam in framework middle cross beam assembly
Change, specific as follows
Transverse beam assembly includes first crossbeam body 301, second cross beam body 302 and is positioned at two longitudinal directions between the two
Beam, is defined herein as the first longitudinal beam 303 and the second longitudinal beam 304.During transverse beam assembly welding, carry out in the following manner:
S300, weld the weld joint on inner side that two longitudinal beams are formed with both sides cross-beam bodies；
Specifically, the weld joint on inner side that two longitudinal beams and both sides cross-beam bodies are formed is generally dovetail configuration weld seam, first
Being respectively arranged with four weld seams, totally eight weld seams on second, the welding manner of eight weld seams can be such that
S301, the upper all weld joint on inner side of welding first；
All weld joint on inner side in S302, welding second；
Wherein, the weld joint on inner side that two longitudinal beams on the same face are formed alternately welds, and front two weld seams are positioned at the same side.
The remaining limit weld seam of the dovetail weld seam that two longitudinal beams are formed with both sides cross-beam body can increase remaining limit backing plate (not to be had in literary composition
Illustrate, but do not hinder those skilled in that art's understanding to technical scheme), extend starting the arc defect, and make cornerite in order to avoid
Weld defect occurs.
S310, weld the weld seam that other parts and respective girders body are formed.
It should be noted that herein two cross-beam body opposite sides to be defined as inner side.Each weld joint on inner side is in such a way
Welding: the upper all weld joint on inner side of first welding first, then weld all weld joint on inner side on second, wherein, in every one side
During the welding of each weld joint on inner side, weld outward at center.
It should be noted that be assembled on car body as reference with transverse beam assembly, transverse beam assembly one side upward, the most just
Face, transverse beam assembly is towards the one side of track, the referred to as back side.Definition preferred herein first is front, second back side.Please join
Examine the front plan view that Fig. 9 and Figure 10, Fig. 9 are transverse beam assembly；Figure 10 is the back side upward view of transverse beam assembly.
It addition, herein when describing welding direction, transverse beam assembly center cross-sectional location is defined as center, will
It is defined as outer end near the direction at this body of crossbeam two ends.
The weld joint on inner side that two longitudinal beams on the same face are formed alternately welds, and front two weld seams are positioned at the same side.The most just
It is to say, first welds two weld seams of two longitudinal beams and same cross-beam body, then weld two welderings of two longitudinal beams and another cross-beam body
Seam.As a example by the weld seam first welding first crossbeam body 301 and the formation of the first longitudinal beam, two longitudinal beams and two cross-beam bodies are formed
The welding sequence of weld joint on inner side be: the first longitudinal beam and first crossbeam body 301 side weld → the second longitudinal beam and the first horizontal stroke
Weld joint on inner side → the first longitudinal beam of beam body 301 is horizontal with second cross beam body 302 weld joint on inner side → the second longitudinal beam and second
Beam body 302 weld joint on inner side.
In the various embodiments described above, step S310 is specifically as follows:
S311, according to loading, parts position, each parts being welded on two cross-beam bodies are grouped, packet
Foundation: will be located in being divided into first group on same cross-beam body and about the asymmetrical parts of center cross-sectional, will be located in same
It is divided into second group on cross-beam body and about the parts that center cross-sectional is symmetrical；
S312, first it is sequentially completed the welding of each parts weld seam in first group, then carries out each parts weld seam in second group
Welding.
Specifically, when in first group, each parts weld, after being sequentially completed the welding of first each weld seam, more successively
Carry out the welding of second each weld seam, then carry out the welding of each parts weld seam in second group；
Wherein the weld seam on each parts first and second welds in the following manner in first group: staggered welding
It is formed at the weld seam on two cross-beam bodies, the weld seam that preferential welding loading is big, and the welding direction of each weld seam is all for by outward
End is to center weld.
As a example by the conventional transverse beam assembly of rail vehicle, first crossbeam body 301 is provided with motor hanger 306 He
First gear box bracket 308；Equipped with two motor hangers 305 and the second gear box bracket 307 on second cross beam body 302.And
The above two and rear both of which are asymmetric about center cross-sectional.
Further, the welding capacity of a motor hanger 306 and two motor hangers 305 is all higher than the first gear box bracket 308
With the welding capacity of the second gear box bracket 307, therefore select welding sequence time, the most first welding one 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
Connect two motor hangers 305 little on the impact of assembly post welding distortion amount.I.e., it is possible to first one motor hanger 306 of welding can also
First two motor hangers 305 of welding.The most first two motor hangers 305 of welding.
When after the welding completing longitudinal beam described in two first and second, then carry out the welding of first all weld seam,
Carrying out the welding of second all weld seam the most again, in first group, parts first and second weld the most in the following order
Connect: 305, motor hanger the 306, second gear-box 307, first gear-box of two motor hangers 308 and respective girders body
The weld seam formed.The concrete welding sequence of i.e. first and second upper above each weld seam is:
Weld seam → mono-motor hanger of two motor hangers 305 and second cross beam body 302 and first crossbeam body 301
Weld seam → the first gear-box 308 of weld seam → the second gear-box 307 and second cross beam body 301 and first crossbeam body 301
Weld seam.
Parts in second group include the first braking flap seat 309 and second being installed on outside first crossbeam body 301
Braking flap seat 310, and it is installed on the 3rd braking flap seat the 311, the 4th braking flap seat outside described second cross beam body 302
312；The welding sequence of each braking flap seat is: first completes the welding of one group of braking flap seat on a wherein cross-beam body, then carries out another
On one cross-beam body, the welding of one group of braking flap seat, after completing the welding of each first weld seam of braking flap seat, then carries out second
The welding of weld seam, and respectively brake the welding direction of flap seat by center outward.
Second group also including, the first anti-side rolling torsion rod seat 313 being positioned at second cross beam body 302 and the rolling of the second anti-side are turned round
Pole socket 314, two rolling torsion bar seats are symmetrical about center cross-sectional, complete first and the welding of second of above braking flap seat
After, weld the first anti-side rolling torsion rod seat 313 and the second anti-side rolling torsion rod seat 314, and welding direction by center to two ends.
The equal ecto-entad of weld seam welding direction of the most above-mentioned each flap seat.As shown in Figure 9 and Figure 10, figure shows above each zero
The welding sequence of parts: the most 10.
In above transverse beam assembly, the welding procedure of the weld seam of each group parts all includes backing welding, fills weldering and front cover weldering,
And three all uses double wire welding；After each weld seam is sequentially completed backing welding, then it is sequentially completed filling weldering, is finally sequentially completed envelope
Face is welded.
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 width
Degree: 1.5mm；Hunting frequency: 180Hz.
In the various embodiments described above, the technological parameter 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, swing width
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, swing width
Degree: 1.5mm, hunting frequency: 180Hz.
Above the welding method of a kind of railway vehicle component provided by the present invention is described in detail.Herein should
Being set forth principle and the embodiment of the present invention by specific case, the explanation of above example is only intended to help reason
Solve method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, without departing from
On the premise of the principle of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into this
In bright scope of the claims.
Claims (30)
1. the welding method of railway vehicle component, it is characterised in that on this assembly each weld seam welding method specific as follows:
S1, the welding quality corresponding to different welding sequences obtaining the formation of all weld seams and welding efficiency, and it is suitable to set up welding
Sequence and welding quality, the relation of welding efficiency；
S2, consider welding cost and weld heat input at least one factor determines welding quality and the welding efficiency of reality,
Select in above-mentioned weld seam order with welding quality, welding efficiency relation according to the above-mentioned actual welding quality determined and welding efficiency
Take the welding sequence that the welding sequence of weld seam operates as actual welding.
2. the welding method of railway vehicle component as claimed in claim 1, it is characterised in that the most simultaneously obtain weldering
It is connected into this and welding quality, the relation of welding efficiency, weld heat input and welding quality, the relation of welding efficiency；
Consider that described welding cost and described weld heat input two factor determine described welding quality and institute the most simultaneously
State welding efficiency.
3. the welding method of railway vehicle component as claimed in claim 2, it is characterised in that pass through Numerical-Mode in step sl
Intend obtaining under different welding sequence, welding quality and the curve chart of welding efficiency；Under different welding costs, welding quality with weld
The curve chart of efficiency；Under different welding efficiency, welding quality and the curve chart of welding efficiency；
Calculate the intersection point of three curves in step s 2, and using the welding corresponding to this intersection point in proper order as actual welding operation
Welding sequence.
4. the welding method of the railway vehicle component as described in any one of claims 1 to 3, it is characterised in that described assembly is
Framework, this framework includes the first curb girder assembly in both sides, the second curb girder assembly and is supported between the beam assembly of both sides
First crossbeam assembly, second cross beam assembly, the two ends of described first crossbeam assembly and described second cross beam assembly extend through two
Described curb girder assembly forms circular weld to be welded, first welds each described transverse beam assembly and the formation of described curb girder assembly successively
Interior annular weld seam, welds the exterior annular weld seam that each described transverse beam assembly is formed with described curb girder assembly the most successively；
The most each described interior annular weld seam welds in the following order: first crossbeam assembly and described first curb girder assembly
Interior annular weld seam → first crossbeam the assembly of interior annular weld seam → second cross beam assembly and described first curb girder assembly and the
Interior annular weld seam → second cross beam the assembly of two curb girder assemblies and the interior annular weld seam of described second curb girder assembly.
5. the welding method of railway vehicle component as claimed in claim 4, it is characterised in that each described exterior annular weld seam is pressed
Following sequence is welded: the exterior annular weld seam → second cross beam assembly of first crossbeam assembly and described first curb girder assembly with
The exterior annular weld seam of described first curb girder assembly → described first crossbeam assembly and the exterior annular of described second curb girder assembly
Weld seam → described second cross beam assembly and the exterior annular weld seam of described second curb girder assembly.
6. the welding method of railway vehicle component as claimed in claim 5, it is characterised in that each described circular weld all includes
Two procedures: backing welding and filling front cover weldering；And when welding, after first all weld seams being carried out backing welding successively, more successively
It is filled with front cover weldering.
7. the welding method of railway vehicle component as claimed in claim 6, it is characterised in that in described backing welding technique,
Use double wire welding technique.
8. the welding method of railway vehicle component as claimed in claim 7, it is characterised in that described double wire welding technological parameter
For: 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.
9. the welding method of rail vehicle framework as claimed in claim 6, it is characterised in that at described filling front cover Welding
In, use double wire welding technique.
10. the welding method of rail vehicle framework as claimed in claim 9, it is characterised in that described double wire welding technique is joined
Number is: tape pulse, and main silk current range is: 200A-210A；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.
The welding method of 11. rail vehicle frameworks as claimed in claim 6, it is characterised in that same described circular weld
Backing welding, the arcing point position difference of filling front cover weldering, and use the mariages starting the arc, cross arcing point 0.5mm paranema backfill 0.8s
Receive arc.
The welding method of 12. railway vehicle component as described in any one of claims 1 to 3, it is characterised in that described assembly is
Curb girder assembly, described curb girder assembly includes the curb girder main body surrounding box-structure and is positioned at the bullet at described curb girder main body both ends
Spring cylinder, the corner of described curb girder main body is long weld seam,
The circular weld formed between spring strut described in the both ends and two of described 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 said first annular weld seam and the second circular weld
Being positioned at first end to arrange up and down, described 3rd circular weld is positioned at the second end with fourth annular weld seam and arranges up and down；
The welding procedure of each weld seam all includes backing welding and fills front cover weldering, and the backing welding of each described weld seam is carried out in the following manner
Welding: first weld to the first end of described curb girder main body from the midpoint of long weld seam, until completing relative with this long weld seam
The circular weld half cycle welding answered；Then welding gun returns the midpoint of this long weld seam, and the second end to described curb girder main body enters
Row welding, until completing with this long weld seam to corresponding circular weld half cycle welding；Four long weld seams are completed according to above step
And the backing welding of circular weld.
The welding method of 13. railway vehicle component as claimed in claim 12, it is characterised in that four long weld seams define respectively
It is the first long weld seam, the second long weld seam, the 3rd long weld seam and the 4th long weld seam, wherein, described first long weld seam and the described 3rd
Long weld seam is positioned at same level, and described 4th long weld seam is arranged with described first long weld seam diagonal angle；
Wherein, long weld seam carries out the welding sequence of backing welding and is:
S200, the midpoint of the first long weld seam are initial solder joint, have first welded the left half section of weld seam of the first long weld seam to first end
After weld the half cycle of first annular weld seam again；Then welding gun returns the midpoint of the first long weld seam, has welded to the second end
The half cycle of the 3rd circular weld is welded again after the right half section of weld seam of first long weld seam；
S210, the midpoint of the second long weld seam are initial solder joint, have first welded the left half section of weld seam of the second long weld seam to first end
After weld the second circular weld half cycle 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 after the right half section of weld seam of two long weld seams；
S220, the midpoint of the 3rd long weld seam are initial solder joint, have first welded the left half section of weld seam of the 3rd long weld seam to first end
After weld again first annular weld seam residue half cycle；Then welding gun returns the midpoint of the 3rd long weld seam, has welded to the second end
The 3rd circular weld residue half circumference is welded after becoming the right half section of weld seam of the 3rd long weld seam；
S230, the midpoint of the 4th long weld seam are initial solder joint, have first welded the left half section of weld seam of the 4th long weld seam to first end
After weld again second circular weld residue half cycle；Then welding gun returns the midpoint of the 4th long weld seam, has welded to the second end
The residue half cycle of fourth annular weld seam is welded after becoming the right half section of welding of the 4th long weld seam；
It is repeated in above-mentioned steps S200 to S230, completes the backing welding of curb girder assembly；
Wherein, two half cycles of above-mentioned circular weld can be symmetrical about spring strut center longitudinal plane.
The welding method of 14. railway vehicle component as claimed in claim 13, it is characterised in that the filling envelope of each described weld seam
Face weldering is carried out in the following order: the first long weld seam → first annular weld seam half cycle → the 3rd long weld seam of circular weld half cycle → the second
→ the second circular weld half cycle → fourth annular weld seam half cycle → the 3rd long weld seam → first annular weld seam residue half cycle → 3rd
Circular weld residue half cycle → 4th long weld seam → the second circular weld residue half cycle → fourth annular weld seam residue half cycle.
The welding method of 15. railway vehicle component as claimed in claim 14, it is characterised in that in filling front cover welding,
The welding direction of four long weld seams is all to be filled with to the other end from one end.
The welding method of 16. railway vehicle component as claimed in claim 12, it is characterised in that in described backing welding technique
In, use monofilament welding procedure.
The welding method of 17. railway vehicle component as claimed in claim 16, it is characterised in that described monofilament welding procedure is joined
Number is: tape pulse, and 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.
The welding method of 18. railway vehicle component as claimed in claim 12, it is characterised in that described filling front cover welder
In skill, use double wire welding technique.
The welding method of 19. railway vehicle component as claimed in claim 18, it is characterised in that described double wire welding technique is joined
Number is: tape pulse, and 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.
The welding method of 20. railway vehicle component as described in any one of claims 1 to 3, it is characterised in that described assembly is
Transverse beam assembly, described transverse beam assembly include first crossbeam body, second cross beam body, be positioned at two longitudinal beams between the two with
And lay respectively at other parts on described first crossbeam body and described second cross beam body；When transverse beam assembly is welded,
Carry out in the following manner:
The weld joint on inner side that longitudinal beam described in S300, welding two is formed with both sides cross-beam body；
S310, weld the weld seam that other parts and respective girders body are formed.
The welding method of 21. railway vehicle component as claimed in claim 20, it is characterised in that each described interior in step S300
Side weld welds in such a way:
S301, the upper all weld joint on inner side of welding first；
All weld joint on inner side in S302, welding second；
Wherein, the weld joint on inner side that two longitudinal beams on the same face are formed alternately welds, and front two weld seams are positioned at the same side.
The welding method of 22. railway vehicle component as claimed in claim 21, it is characterised in that each inner side weldering in every one side
During seam welding, welding direction is for be welded outward by center.
The welding method of 23. railway vehicle component as claimed in claim 20, it is characterised in that step S310 particularly as follows:
S311, being grouped, according to loading, parts position, each parts being welded on two cross-beam bodies, packet depends on
According to: will be located in being divided into first group on same cross-beam body and about the asymmetrical parts of center cross-sectional, will be located in same horizontal stroke
It is divided into second group on beam body and about the parts that center cross-sectional is symmetrical；
S312, first it is sequentially completed the welding of each parts weld seam in first group, then carries out the weldering of each parts weld seam in second group
Connect.
The welding method of 24. railway vehicle component as claimed in claim 23, it is characterised in that in first group, each parts enter
During row welding, after being sequentially completed the welding of first each weld seam, then carry out the welding of second each weld seam successively, then carry out the
The welding of each parts weld seam in two groups；
Wherein the weld seam on each parts first and second welds in the following manner in first group: staggered welding is formed
Weld seam on two cross-beam bodies, weld seam that preferential welding loading is big, and the welding direction of each weld seam all for by outer end to
Center weld.
The welding method of 25. railway vehicle component as claimed in claim 24, it is characterised in that the parts of described first group
Including the motor hanger being installed on described first crossbeam body and the first gear box bracket, and it is installed on second cross beam
Two motor hangers on body and the second gear box bracket；When carrying out first group of parts welding, first and second
Weld the most in the following order: two motor hangers, motor hanger, the second gear-box, first gear-boxes are with the most horizontal
The weld seam that beam body is formed.
The welding method of 26. railway vehicle component as claimed in claim 24, it is characterised in that zero in described second group
Part includes being installed on the first braking flap seat and the second braking flap seat of described first crossbeam outer body, and is installed on described the
The 3rd braking flap seat outside two cross-beam bodies, the 4th braking flap seat；The welding sequence of each braking flap seat is: first complete wherein one
The welding of one group of braking flap seat on cross-beam body, then carry out the welding of one group of braking flap seat on another cross-beam body, complete each system
After the welding of dynamic first weld seam of flap seat, then carry out the welding of second weld seam, and respectively brake the welding direction of flap seat by
Center is outward.
The welding method of 27. railway vehicle component as claimed in claim 20, it is characterised in that the weld seam of each group parts
Welding procedure all includes backing welding, fills weldering and front cover weldering, and three all uses double wire welding；Each weld seam is sequentially completed bottoming
Postwelding, then it is sequentially completed filling weldering, finally it is sequentially completed front cover weldering.
The welding method of 28. railway vehicle component as claimed in claim 27, it is characterised in that the technique ginseng of described backing welding
Number is: main silk electric current 110A～120A, voltage: 15V～17V, paranema electric current: 90A～100A；Voltage: 12V～14V；Welding speed
Degree: 80cm/min～85cm/min, swing width: 1.5mm；Hunting frequency: 180Hz.
The welding method of 29. railway vehicle component as claimed in claim 27, it is characterised in that the technique ginseng of described filling weldering
Number is: main silk electric current 190A～210A, voltage: 22V～23V, paranema electric current: 200A～210A, voltage: 24V～25V, welding
Speed: 60cm/min～65cm/min, swing width: 2mm, hunting frequency: 180Hz.
The welding method of 30. railway vehicle component as claimed in claim 27, it is characterised in that the technique ginseng of described front cover weldering
Number is: main silk electric current 200A～210A, voltage: 24V～25V, paranema electric current: 210A～220A, voltage: 27V～29V, welding
Speed: 65cm/min～70cm/min, swing width: 1.5mm, hunting frequency: 180Hz.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608141A (en) * | 2018-06-29 | 2018-10-02 | 上海宝冶集团有限公司 | Polygon slab workpiece main weld displacement device and welding method |
| CN108637510A (en) * | 2018-04-26 | 2018-10-12 | 广州文冲船厂有限责任公司 | A kind of welding method of straight ladder for ship |
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| CN111151905A (en) * | 2020-01-02 | 2020-05-15 | 中车青岛四方机车车辆股份有限公司 | Welding method and welding control system for side beam assembly |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108637510A (en) * | 2018-04-26 | 2018-10-12 | 广州文冲船厂有限责任公司 | A kind of welding method of straight ladder for ship |
| CN108608141A (en) * | 2018-06-29 | 2018-10-02 | 上海宝冶集团有限公司 | Polygon slab workpiece main weld displacement device and welding method |
| CN110014242A (en) * | 2019-04-29 | 2019-07-16 | 中电建武汉铁塔有限公司 | Electric power pylon column foot welding procedure |
| CN110014242B (en) * | 2019-04-29 | 2021-07-30 | 中电建武汉铁塔有限公司 | Welding process for tower foot of power transmission tower |
| CN111151905A (en) * | 2020-01-02 | 2020-05-15 | 中车青岛四方机车车辆股份有限公司 | Welding method and welding control system for side beam assembly |
| CN111151905B (en) * | 2020-01-02 | 2021-11-12 | 中车青岛四方机车车辆股份有限公司 | Welding method and welding control system for side beam assembly |
| CN111993053A (en) * | 2020-06-28 | 2020-11-27 | 武汉中车电牵科技有限公司 | Welding process for rail transit box girder framework and lean production layout method thereof |
| CN111889836A (en) * | 2020-07-04 | 2020-11-06 | 烟台万兴汽车配件有限公司 | Welding method and system for traction frame workpiece |
| CN111889836B (en) * | 2020-07-04 | 2022-06-03 | 烟台万兴汽车配件有限公司 | Welding method and system for traction frame workpiece |
| CN112077474A (en) * | 2020-08-07 | 2020-12-15 | 中车青岛四方机车车辆股份有限公司 | Welding quality control method and device for thick plate narrow-spacing circumferential weld |
| CN112077474B (en) * | 2020-08-07 | 2022-03-25 | 中车青岛四方机车车辆股份有限公司 | Welding quality control method for thick plate narrow-spacing circumferential weld |
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