CN106270929B - The welding method of railway vehicle component - Google Patents
The welding method of railway vehicle component Download PDFInfo
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- CN106270929B CN106270929B CN201610875186.4A CN201610875186A CN106270929B CN 106270929 B CN106270929 B CN 106270929B CN 201610875186 A CN201610875186 A CN 201610875186A CN 106270929 B CN106270929 B CN 106270929B
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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 a kind of welding methods of railway vehicle component, the welding method of each weld seam is specific as follows on the component: first obtaining welding quality, welding efficiency corresponding to the different welding sequences that all weld seams are formed, and establishes welding sequence and welding quality, the relationship of welding efficiency；Then welding cost is comprehensively considered again and weld heat input at least one factor determines actual welding quality and welding efficiency, and the welding sequence that the welding sequence of weld seam operates as actual welding is chosen from above-mentioned weld seam sequence and in welding quality, welding efficiency relationship according to the actual welding quality of above-mentioned determination and welding efficiency；In terms of comprehensively considering manufacturing cost, weld heat input, welding quality, welding efficiency herein, optimal welding sequence is found.
Description
Technical field
The present invention relates to rail vehicle welding technology field, in particular to a kind of welding method of railway vehicle component.
Background technique
Rail vehicle framework main function provides support for transmitting load and for suspension and other auxiliary devices, therefore
It 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 H-type component, i.e. transverse beam assembly and curb girder component is assembled into H-type.Wherein, transverse beam assembly includes main body of cross-beam and is welded in
Multiple components 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 multiple components for being welded in stringer main body, is provided with spring support on curb girder component, main
Support is provided for air spring；It is damper bracket that snakelike damper and one is additionally provided on curb girder component.
Above each bracket is welded on curb girder main body and main body of cross-beam by welding procedure.It is well known that welding is held
Components thermal deformation is easily led to, causes to weld rear cross beam component and the scale error of curb girder component is bigger.Application condition is big
Transverse beam assembly and curb girder components welding formed framework after, the welding deformation amount of framework more difficulty or ease control.Therefore framework welding
The control of deflection is always the problem that this field 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.
Summary of the invention
In order to solve the above technical problems, the present invention provides the welding method of railway vehicle component, each weld seam on the component
Welding method it is specific as follows:
S1, welding quality, welding efficiency corresponding to the different welding sequences that all weld seams are formed are obtained, and establishes welding
Sequence and welding quality, the relationship of welding efficiency；
S2, comprehensively consider welding cost and weld heat input at least one factor determines actual welding quality and welding effect
Rate, according to the actual welding quality of above-mentioned determination and welding efficiency from above-mentioned weld seam sequence and welding quality, welding efficiency relationship
The welding sequence that the middle welding sequence for choosing weld seam is operated as actual welding.
Optionally, welding cost and welding quality, the relationship of welding efficiency, weld heat input are obtained simultaneously in step sl
With welding quality, the relationship of welding efficiency；
Consider that the welding cost and two factor of the weld heat input determine the welding quality simultaneously in step s 2
With the welding efficiency.
Optionally, it is obtained under different welding sequences by numerical simulation in step sl, welding quality and welding efficiency
Curve graph；Under different welding costs, the curve graph of welding quality and welding efficiency；Under different welding efficiencies, welding quality and weldering
Connect the curve graph of efficiency；
The intersection point of three curves is calculated in step s 2, and is used as actual welding to grasp in proper order welding corresponding to the intersection point
The welding sequence of work.
Optionally, the component is framework, the framework include positioned at the first curb girder component of two sides, second side beam assembly with
And it is supported in first crossbeam component, second cross beam component between the beam assembly of two sides, the first crossbeam component and described second
The both ends of transverse beam assembly extend through the two curb girder components and form circular weld to be welded, first successively weld each crossbeam
The interior annular weld seam that component and the curb girder component are formed, then successively welds each transverse beam assembly and the curb girder group again
The exterior annular weld seam that part is formed；
Wherein each interior annular weld seam is welded in the following order: first crossbeam component and the first curb girder group
Interior annular weld seam → second cross beam component of part and interior annular weld seam → first crossbeam component of the first curb girder component
With interior annular weld seam → second cross beam component of second side beam assembly and the interior annular weld seam of second side beam assembly.
Optionally, each exterior annular weld seam is welded in the following order: first crossbeam component and first side
Exterior annular weld seam → second cross beam component of beam assembly and exterior annular weld seam → described first of the first curb girder component
Exterior annular weld seam → the second cross beam component and second side beam assembly of transverse beam assembly and second side beam assembly
Exterior annular weld seam.
Optionally, each circular weld includes two procedures: backing welding and filling cover weldering；And in welding,
After first successively carrying out backing welding to all weld seams, then successively it is filled cover weldering.
Optionally, in the bottoming Welding, using double wire welding technique.
Optionally, the double wire welding technological parameter are as follows: tape pulse, main silk current range are as follows: 110A-120A；Main silk electricity
Pressure are as follows: 15V-17V；Paranema current range are as follows: 90A-100A；Paranema voltage are as follows: 12V-14V；Speed of welding are as follows: 80cm/min-
85cm/min；Swing width is 1.0mm-1.5mm.
Optionally, in the filling cover Welding, using double wire welding technique.
Optionally, the double wire welding technological parameter are as follows: tape pulse, main silk current range are as follows: 200A-210A；Main silk electricity
Pressure are as follows: 24V-25V；Paranema current range are as follows: 210A-220A；Paranema voltage are as follows: 27V-29V；Speed of welding are as follows: 65cm/min-
70cm/min；Swing width is 1.0mm-1.5mm.
Optionally, the backing welding of the same circular weld, the starting point position of filling cover weldering are different, and using double
The silk starting the arc crosses arcing point 0.5mm paranema backfill 0.8s and receives arc.
Optionally, the component be curb girder component, the curb girder component include surround box-structure curb girder main body and
Spring strut positioned at curb girder main body both ends, the quadrangle of the curb girder main body are long weld seam,
The circular weld formed between the both ends of the curb girder main body and two spring struts is respectively defined as the first ring
Shape weld seam, the second circular weld, third circular weld and fourth annular weld seam, wherein the first annular weld seam and the second annular
Weld seam is located at first end and arranges up and down, and the third circular weld and fourth annular weld seam are located at the second end and arrange up and down；
The welding procedure of each weld seam includes backing welding and filling cover weldering, and the backing welding of each weld seam is in the following manner
It is welded: first being 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, the second end of Xiang Suoshu curb girder main body
Portion is welded, until completing to weld with the long weld seam to corresponding circular weld half cycle；It is completed according to above step four 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 long weld seam of third and the 4th long weldering
Seam, wherein the first long weld seam and the long weld seam of the third are located at same level, the 4th long weld seam and described first
Long weld seam is diagonally arranged；
Wherein, long weld seam carries out the welding sequence of backing welding are as follows:
S200, the first long weld seam midpoint be starting solder joint, it is half section left first to complete the first long weld seam to first end welding
The half cycle of first annular weld seam is welded after weld seam again；Then welding gun returns the midpoint of the first long weld seam, welds to the second end
Complete the half cycle for welding third circular weld after the right half section of weld seam of the first long weld seam again；
S210, the second long weld seam midpoint be starting solder joint, it is half section left first to complete the second long weld seam to first end welding
The second circular weld half cycle is welded after weld seam again；Then welding gun returns the midpoint of the second long weld seam, has welded to the second end
At welding fourth annular weld seam half cycle again after the right half section of weld seam of the second long weld seam；
The midpoint of the long weld seam of S220, third is starting solder joint, and it is half section left first to weld the long weld seam of completion third to first end
First annular weld seam residue half cycle is welded after weld seam again；Then welding gun returns the midpoint of the long weld seam of third, welds to the second end
It is circumferential to connect welding third circular weld remaining half after completing the right half section of weld seam of the long weld seam of third；
S230, the 4th long weld seam midpoint be starting solder joint, it is half section left first to complete the 4th long weld seam to first end welding
The second circular weld residue half cycle is welded 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 that fourth annular weld seam is welded after completing 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 component；
Wherein, two half cycles of above-mentioned circular weld can be symmetrical about spring strut center longitudinal plane.
Optionally, the filling cover weldering of each weld seam carries out in the following order: the first long weld seam → first annular weld seam
Half cycle → long the weld seam of third circular weld half cycle → the second → the second circular weld half cycle → fourth annular weld seam half cycle → third
Long weld seam → first annular weld seam residue half cycle → third circular weld residue half cycle → the 4th long weld seam → second circular weld
Remaining half cycle → fourth annular weld seam residue half cycle.
Optionally, in filling cover welding, the welding direction of four long weld seams is filled out from one end to the other end
It fills.
Optionally, in the bottoming Welding, using monofilament welding procedure.
Optionally, the monofilament welding condition are as follows: tape pulse, current range are as follows: 140A-150A；Main filament voltage are as follows:
15V-17V；Speed of welding are as follows: 45cm/min-50cm/min；Swing width is 1.0mm-1.5mm；Hunting frequency 120Hz.
Optionally, in the filling cover Welding, using double wire welding technique.
Optionally, the double wire welding technological parameter are as follows: tape pulse, main silk current range are as follows: 110A-120A；Main silk electricity
Pressure are as follows: 15V-17V；Paranema current range are as follows: 90A-100A；Paranema voltage are as follows: 12V-14V；Speed of welding are as follows: 80cm/min-
85cm/min；Swing width is 1.0mm-1.5mm.
Optionally, the component be transverse beam assembly, the transverse beam assembly include first crossbeam ontology, second cross beam ontology,
Positioned at two longitudinal beams between the two and be located on the first crossbeam ontology and the second cross beam ontology its
His components；When to transverse beam assembly welding, carry out in the following manner:
The weld joint on inner side that S300, two longitudinal beams of welding and two sides cross-beam body are formed；
S310, the weld seam that other components and respective girders ontology are formed is welded.
Optionally, each weld joint on inner side welds in the following way in step S300:
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 welds, and preceding two weld seam is located at the same side.
Optionally, when each weld joint on inner side in every one side welds, welding direction is to be welded outward by center.
Optionally, step S310 specifically:
S311, each components being welded on two cross-beam bodies are grouped according to loading, components position, are grouped
Foundation: it will be located on same cross-beam body and be divided into first group about the asymmetrical components of center cross-sectional, will be located at same
It is divided into second group on cross-beam body and about the symmetrical components of center cross-sectional；
S312, the welding for being first sequentially completed each components weld seam in first group, then carry out each components weld seam in second group
Welding.
Optionally, when each components 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 components weld seam in second group is then carried out；
Wherein the weld seam in first group on each the first face of components and the second face is welded in the following manner: staggeredly being welded
The weld seam being formed on two cross-beam bodies, it is preferential to weld the big weld seam of loading, and the welding direction of each weld seam is by outer
It holds to center weld.
Optionally, first group of the components include a motor hanger being installed on the first crossbeam ontology and
First gear case flap seat, and two motor hangers and second gear case flap seat that are installed on second cross beam ontology；Carry out
When first group of components welding, the first face and the second face are welded in the following order: two motor hangers, a motor are hung
The weld seam that seat, second gear case, first gear case and respective girders ontology are formed.
Optionally, the components in described second group include the first brake hanging for being installed on the first crossbeam outer body
Seat and the second braking flap seat, and it is installed on the third braking flap seat of the second cross beam outer body, the 4th braking flap seat；Respectively
Brake the welding sequence of flap seat are as follows: first complete the welding of one group of braking flap seat on a wherein cross-beam body, then carry out another crossbeam
The welding of one group of braking flap seat on ontology after the welding for completing each braking the first face of flap seat weld seam, then carries out the second face weld seam
Welding, and respectively brake flap seat welding direction by center outward.
Optionally, the welding procedure of the weld seam of each group components includes backing welding, filling is welded and cover weldering, and three
It is all made of double wire welding；After each weld seam is sequentially completed backing welding, then it is sequentially completed filling weldering, is finally sequentially completed cover weldering.
Optionally, the technological parameter of the backing welding are as follows: 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 technological parameter of the filling weldering are as follows: 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 the cover weldering are as follows: 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.
In terms of comprehensively considering manufacturing cost, weld heat input, welding quality, welding efficiency herein, it is suitable to find optimal welding
Sequence.
Detailed description of the invention
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；
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 schematic diagram of framework in an embodiment of the present invention；
Fig. 5 is the cross-sectional view of 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；
Fig. 8 is the cross-sectional view of curb girder ontology；
Fig. 9 is the front plan view of transverse beam assembly；
Figure 10 is the back side bottom view of transverse beam assembly.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below with reference to control method, control
Device processed, the present invention is described in further detail for the drawings and specific embodiments.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is manufacturing cost, welding sequence, weld heat input point in an embodiment of the present invention
Not with the curve relation figure of welding efficiency, 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 a kind of welding method of railway vehicle component, there are many type of railway vehicle component, main herein
For component be framework, curb girder component and transverse beam assembly for be introduced.Certain welding method proposed in this paper can also answer
For in the welding of other assemblies.
Rail vehicle framework mainly includes two curb girder components and is supported in two sides beam assembly, herein by two curb girder groups
Part is defined as the first curb girder component and second side beam assembly.First curb girder component and second side beam assembly or so arrangement, first is horizontal
Beam assembly and second cross beam modular support are in two sides beam assembly, and the both ends of two transverse beam assemblies extend through the curb girder of two sides
Component, the i.e. both ends of first crossbeam component and second cross beam component extend through the first curb girder component and second side beam assembly.
First curb girder component and second side beam assembly are mainly body structure, thus first crossbeam component, second cross beam component and each
There are two circular welds to be welded for curb girder component: interior annular weld seam and exterior annular weld seam.
That is, two transverse beam assemblies and two stringer components form eight circular welds altogether: in four time circular weld and
Four exterior annular weld seams.
It is specific as follows there is provided herein a kind of welding method:
S1, welding quality, welding efficiency corresponding to the different welding sequences that all weld seams are formed are obtained, and establishes welding
Sequence and welding quality, the relationship of welding efficiency；
Specifically, the threedimensional model of component can be pre-established, then each weld seam in model component is numbered, into
And permutation and combination obtains several groups welding sequence, the weld seam by simulating different welding sequences welds to obtain welding quality and welding
Efficiency.Different welderings may further be obtained by carrying out numerical simulation to obtained discrete multiple groups welding quality and welding efficiency
Connect the curve graph of sequence lower welding quality and welding efficiency.
S2, comprehensively consider welding cost and weld heat input at least one factor determines actual welding quality and welding effect
Rate, according to fixed actual welding quality and welding efficiency from above-mentioned weld seam sequence and in welding quality, welding efficiency relationship
Choose the welding sequence that the welding sequence of weld seam is operated as actual welding.
Specifically, the relationship between welding cost and welding quality, welding efficiency can also be obtained by modeling Simulation, together
Relationship 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, it is obtained under different welding sequences by numerical simulation in step sl, welding quality and welding efficiency
Curve graph；Under different welding costs, the curve graph of welding quality and welding efficiency；Under different welding efficiencies, welding quality and weldering
Connect the curve graph of efficiency.
As shown in Figure 1, three curves are respectively as follows: the relation curve of manufacturing cost and welding efficiency, welding quality in Fig. 1,
Welding sequence and welding efficiency, the relation curve of welding quality, weld heat input and welding efficiency, the relationship of welding quality song
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
It is higher to connect the more high corresponding welding cost of efficiency.
The intersection point of three curves is calculated in step s 2, and is grasped welding sequence corresponding to the intersection point as actual welding
The welding sequence of work.
In terms of comprehensively considering manufacturing cost, weld heat input, welding quality, welding efficiency herein, it is suitable to find optimal welding
Sequence.
1st embodiment
By taking component is framework as an example, using the above welding method to the annular of curb girder component in framework and transverse beam assembly formation
Weld seam is optimized, specific as follows.
Fig. 3 to Fig. 5 is please referred to, Fig. 3 is the welding method flow chart of an embodiment of the present invention middle orbit car structure；Figure
4 be the structural schematic diagram of framework in an embodiment of the present invention；Fig. 5 is the cross-sectional view of circular weld.
The present 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 that each transverse beam assembly and curb girder component are formed successively is welded；
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 and the second curb girder of side circular weld → second cross beam component and the first curb girder component
Interior annular weld seam → second cross beam component of component and the interior annular weld seam of second side beam assembly.
S110, the exterior annular weld seam that each transverse beam assembly and curb girder component are formed successively is welded.
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 component of exterior annular weld seam → second cross beam component and the first curb girder component
With exterior annular weld seam → second cross beam component of second side beam assembly and the outer side ring of second side beam assembly
Shape weld seam.
From the above, it can be seen that exterior annular weld seam takes the mode about center cross-sectional bilateral symmetry welding.
Circular weld is divided into two classes by the welding method of rail vehicle framework provided by the present invention, first in sequence according to
Secondary welding interior annular weld seam, then successively welds exterior annular weld seam, interior annular weld seam and outside according still further to certain sequence
Circular weld is taken about center cross-sectional bilateral symmetry successively welding manner.It can effectively control in this way inside framework and outer
The weldquality in portion improves production efficiency as far as possible and reduces production cost on the basis of guaranteeing that postwelding framework deflection is lesser.
Test proves, compared with the welding technique of prior art routine, the framework completed using this paper welding method, 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 adjusting amount control of framework entirety exists
Within 2.3mm, the amount of taking off 40% is effectively reduced according to the technique, greatly reduces the deflection of framework, substantially increases production
Efficiency.
Specifically, above-mentioned each circular weld includes two procedures: backing welding and filling cover weldering；Backing welding forms bottoming
Layer, filling cover weldering are specifically divided into filling weldering and cover weldering, are respectively formed filled layer and sealing coat.
And in welding, after first successively carrying out backing welding to all weld seams, then it is successively filled cover weldering.
That is, first from inside to outside in the above sequence to interior annular weld seam and exterior annular weld seam completion backing welding
Afterwards, the sequence of backing welding are as follows: the interior annular weld seam of first crossbeam component and the first curb girder component, second cross beam component and first
Interior annular weld seam, the second cross beam component of the interior annular weld seam of curb girder component, first crossbeam component and second side beam assembly
With the interior annular weld seam of second side beam assembly, the exterior annular weld seam of first crossbeam component and the first curb girder component,
The exterior annular weld seam of two transverse beam assemblies and the first curb girder component, first crossbeam component are outer with second side beam assembly
The exterior annular weld seam of side circular weld, second cross beam component and second side beam assembly.
After completing backing welding, then cover weldering is filled to interior annular weld seam and exterior annular weld seam in the above sequence.
In bottoming Welding, using double wire welding technique.Wherein, main silk current range are as follows: 110A-120A；Main silk electricity
Pressure are as follows: 15V-17V；Paranema current range are as follows: 90A-100A；Paranema voltage are as follows: 12V-14V；Speed of welding are as follows: 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 beautiful, property of welded joint meets design requirement.
Similarly, in filling cover Welding, using double wire welding technique.Main silk current range are as follows: 200A-210A；It is main
Filament voltage are as follows: 24V-25V；Paranema current range are as follows: 210A-220A；Paranema voltage are as follows: 27V-29V；Speed of welding are as follows: 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, it, can be big while meeting welding structure performance demand
It is big to improve welding efficiency.
Referring to FIG. 4, backing welding is given in Fig. 4 and the cover weldering that fills silk in weld seam welding sequence, wherein digital table in Fig. 4
Show welding sequence.
The backing welding of the same circular weld is different with the starting point position of filling cover weldering, and is risen using mariages
Arc crosses arcing point 0.5mm paranema backfill 0.8s and receives arc.Generally, the arcing point that backing welding, filling weldering, cover weld can be along circle
Zhou Junbu is spaced 120 °.It can avoid welding line structure defect caused by the same point starting the arc as far as possible in this way, improve the strong of welding line structure
Degree.
2nd embodiment
By component be curb girder component for, using the above welding method in framework in curb girder component each weld seam carried out it is excellent
Change, it is specific as follows.
Fig. 6 to Fig. 8 is please referred 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；Fig. 8 is the cross-sectional view of curb girder ontology.
Curb girder component includes being welded with several 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 second side beam assembly in the 1st embodiment) for forming framework is the weldering for including curb girder main body
Connected components, wherein curb girder main body is 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 quadrangle 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 for pacifying
Shock mount.Spring strut is welded and fixed with curb girder main body by circular weld, because curb girder main body is box-structure, therefore each spring
Circular weld and lower circular weld are respectively provided between cylinder and the upper plate body and lower body of curb girder main body.
Succinct for description technique scheme, the circular weld that the opposite side this paper beam body and two spring struts are formed is determined
Justice, 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, third circular weld and fourth annular weld seam, wherein first annular weld seam is located at the second circular weld
First end arranges that third circular weld and fourth annular weld seam are located at the second end and arrange up and down up and down.
It should be noted that with the opposite position between component each in Fig. 7 when upper and lower in above-mentioned circular weld technical solution
Set relationship be description object, the noun of locality herein use merely to description technique scheme it is succinct, can not limit herein
Protection scope.
That is, first annular weld seam and third 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 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 be welded to the first end of curb girder main body, until completing with the long weld seam to corresponding annular welds
Stitch half cycle welding；Then welded again since the midpoint of the long weld seam to the second end of curb girder main body, 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 by four long weld seams is defined as: the first long weld seam, the second long weld seam, the long weld seam of third and the 4th long weld seam,
Wherein, the first long weld seam and the long weld seam of third are located at same level, and the 4th long weld seam and the first long weld seam are diagonally arranged.Its
In, the welding sequence that long weld seam carries out backing welding is the first long weld seam, the second long weld seam, the long weld seam of third and the 4th long weld seam.
That is, when carrying out bottom welding, the welding sequence of each weld seam are as follows:
S200, the first long weld seam midpoint be starting solder joint, it is half section left first to complete the first long weld seam to first end welding
The half cycle of first annular weld seam is welded after weld seam again；Then welding gun returns the midpoint of the first long weld seam, welds to the second end
Complete the half cycle for welding third circular weld after the right half section of weld seam of the first long weld seam again；
S210, the second long weld seam midpoint be starting solder joint, it is half section left first to complete the second long weld seam to first end welding
The second circular weld half cycle is welded after weld seam again；Then welding gun returns the midpoint of the second long weld seam, has welded to the second end
At welding fourth annular weld seam half cycle again after the right half section of weld seam of the second long weld seam；
The midpoint of the long weld seam of S220, third is starting solder joint, and it is half section left first to weld the long weld seam of completion third to first end
First annular weld seam residue half cycle is welded after weld seam again；Then welding gun returns the midpoint of the long weld seam of third, welds to the second end
It is circumferential to connect welding third circular weld remaining half after completing the right half section of weld seam of the long weld seam of third；
S230, the 4th long weld seam midpoint be starting solder joint, it is half section left first to complete the 4th long weld seam to first end welding
The second circular weld residue half cycle is welded 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 that fourth annular weld seam is welded after completing 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 component.
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 cover weldering of each weld seam carries out in the following order: the first long weld seam → first annular
Weld seam half cycle → long the weld seam of third circular weld half cycle → the second → the second circular weld half cycle → fourth annular weld seam half cycle →
The long weld seam of third → first annular weld seam residue half cycle → third 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.
It is repeated according to sequence described above, completes filling cover weldering.
In filling cover welding, the welding direction of four long weld seams is filled from one end to the other end.Using
Welding efficiency can be improved while reducing welding deformation in the welding method.
It further takes into account herein and considers factor of both welding quality and welding efficiency, opposite side beam assembly welding procedure ginseng
Number is optimized.
In above-mentioned bottoming Welding, using monofilament welding procedure.Wherein, monofilament welding condition are as follows: tape pulse, electricity
Flow range are as follows: 140A-150A；Main filament voltage are as follows: 15V-17V；Speed of welding are as follows: 45cm/min-50cm/min；Swing width is
1.0mm-1.5mm；Hunting frequency 120Hz.
In the various embodiments described above, in the filling cover Welding, using double wire welding technique.Wherein, double wire welding
Technological parameter are as follows: tape pulse, main silk current range are as follows: 110A-120A；Main filament voltage are as follows: 15V-17V；Paranema current range are as follows:
90A-100A；Paranema voltage are as follows: 12V-14V；Speed of welding are as follows: 80cm/min-85cm/min；Swing width is 1.0mm-
1.5mm；Hunting frequency is 180Hz.
Referring to FIG. 7, digital representation welding sequence in Fig. 7, arrow indicates welding direction, wherein 1 to 4 indicates backing welding
Welding sequence, digital 5-10 indicate the welding sequence and welding direction of filling cover weldering.
In addition, the cross-sectional view of curb girder ontology is given in Fig. 8, the welding sequence of the long weld seam of each item of digital representation in figure.
3rd embodiment
By taking component is transverse beam assembly as an example, each weld seam in framework middle cross beam component is carried out using the above welding method excellent
Change, it is specific as follows
Transverse beam assembly includes first crossbeam ontology 301, second cross beam ontology 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 welds, carry out in the following manner:
The weld joint on inner side that S300, two longitudinal beams of welding and two sides cross-beam body are formed；
Specifically, the weld joint on inner side that two longitudinal beams and two sides cross-beam body are formed is generally dovetail configuration weld seam, the first face
With it is each on the second face there are four weld seams, totally eight weld seams, the welding manner of eight weld seams can be such that
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 welds, and preceding two weld seam is located at the same side.
The remaining backing plate when weld seam can increase remaining for the dovetail weld seam that two longitudinal beams are formed with two sides cross-beam body (does not have in text
Show, but do not hinder understanding of the those skilled in that art to technical solution), extend starting the arc defect, and make cornerite in order to avoid
There is welding defect.
S310, the weld seam that other components and respective girders ontology are formed is welded.
It should be noted that two cross-beam body opposite sides are defined as inside herein.Each weld joint on inner side is in the following way
Welding: all weld joint on inner side on the first face are first welded, then weld all weld joint on inner side on the second face, wherein in every one side
When the welding of each weld joint on inner side, welded outward by center.
It should be noted that being assembled on car body with transverse beam assembly as reference, the one side of transverse beam assembly upward is also referred to as positive
Face, transverse beam assembly is towards the one side of track, the referred to as back side.First face of definition preferred herein is front, the second face back side.It please join
Fig. 9 and Figure 10 are examined, Fig. 9 is the front plan view of transverse beam assembly；Figure 10 is the back side bottom view of transverse beam assembly.
In addition, herein when describing welding direction, it, will centered on the definition of the location of transverse beam assembly center cross-sectional
Direction definition close to this ontology of crossbeam both ends is outer end.
The weld joint on inner side that two longitudinal beams on the same face are formed alternately welds, and preceding two weld seam is located at the same side.Also
It is to say, first welds two weld seams of two longitudinal beams Yu same cross-beam body, then welds two welderings of two longitudinal beams Yu another cross-beam body
Seam.For first welding the weld seam that first crossbeam ontology 301 and first longitudinal direction beam are formed, two longitudinal beams are formed with two cross-beam bodies
Weld joint on inner side welding sequence are as follows: first longitudinal direction beam and 301 side welds of first crossbeam ontology → second longitudinal direction beam and the first cross
The weld joint on inner side of beam ontology 301 → first longitudinal direction beam and 302 weld joint on inner side of second cross beam ontology → second longitudinal direction beam and the second cross
302 weld joint on inner side of beam ontology.
In the various embodiments described above, step S310 is specifically as follows:
S311, each components being welded on two cross-beam bodies are grouped according to loading, components position, are grouped
Foundation: it will be located on same cross-beam body and be divided into first group about the asymmetrical components of center cross-sectional, will be located at same
It is divided into second group on cross-beam body and about the symmetrical components of center cross-sectional；
S312, the welding for being first sequentially completed each components weld seam in first group, then carry out each components weld seam in second group
Welding.
Specifically, when each components 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 components weld seam in second group is then carried out；
Wherein the weld seam in first group on each the first face of components and the second face is welded in the following manner: staggeredly being welded
The weld seam being formed on two cross-beam bodies, it is preferential to weld the big weld seam of loading, and the welding direction of each weld seam is by outer
It holds to center weld.
By taking the common transverse beam assembly of rail vehicle as an example, 306 He of motor hanger is installed on first crossbeam ontology 301
First gear case flap seat 308；Two motor hangers 305 and second gear case flap seat 307 are housed on second cross beam ontology 302.And
The above two are both asymmetric about center cross-sectional with after.
Also, the welding capacity of a motor hanger 306 and two motor hangers 305 is all larger than first gear case flap seat 308
A motor hanger 306 or two is preferably first welded therefore when selecting welding sequence with the welding capacity of second gear case flap seat 307
Position motor hanger 305 can first weld a motor hanger 306 wherein the welding capacity of the two is not much different, or selection is first welded
Connecing two motor hangers 305 influences less component post welding distortion amount.It can also be with i.e., it is possible to first weld motor hanger 306
First weld two motor hangers 305.Two motor hangers 305 are preferably first welded herein.
After the welding in two first faces of longitudinal beam of completing and the second face, 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 the first face of components and the second face are welded in the following order in first group
It connects: two motor hangers, 305, motor hangers 306, second gear case 307, first gear case 308 and respective girders ontology
The weld seam of formation.That is the specific welding sequence of above each weld seam on the first face and the second face are as follows:
Weld seam → mono- motor hanger and first crossbeam ontology 301 of two motor hangers 305 and second cross beam ontology 302
Weld seam → second gear case 307 and second cross beam ontology 301 weld seam → first gear case 308 and first crossbeam ontology 301
Weld seam.
Components in second group include the first braking flap seat 309 and second for being installed on 301 outside of first crossbeam ontology
Flap seat 310 is braked, and is installed on the third braking braking flap seat of flap seat the 311, the 4th in 302 outside of second cross beam ontology
312；The welding sequence of each braking flap seat are as follows: first complete the welding of one group of braking flap seat on a wherein cross-beam body, then carry out another
The welding of one group of braking flap seat on one cross-beam body after the welding for completing each braking the first face of 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.
It further include being turned round positioned at the first anti-side rolling torsion rod seat 313 of second cross beam ontology 302 and the rolling of the second anti-side in second group
Pole socket 314, two rolling torsion bar seats are symmetrical about center cross-sectional, and the welding in the first face and the second face of flap seat is braked more than completing
Afterwards, the first anti-side rolling torsion rod seat 313 and the second anti-side rolling torsion rod seat 314 are welded, and welding direction is from center to both ends.
The wherein equal ecto-entad of weld seam welding direction of above-mentioned each flap seat.As shown in Figure 9 and Figure 10, it is shown in figure above each
The welding sequence of components: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
The welding procedure of the weld seam of each group components includes that backing welding, filling weldering and cover weld in the above transverse beam assembly,
And three is all made of 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 weldering.
In the various embodiments described above, the technological parameter of backing welding in transverse beam assembly are as follows: main silk electric current 110A~120A, voltage:
15V~17V, paranema electric current: 90A~100A；Voltage: 12V~14V；Speed of welding: 80cm/min~85cm/min is swung wide
Degree: 1.5mm；Hunting frequency: 180Hz.
The technological parameter of weldering is filled in the various embodiments described above, in transverse beam assembly are as follows: main silk electric current 190A~210A, voltage:
22V~23V, paranema electric current: 200A~210A, voltage: 24V~25V, speed of welding: 60cm/min~65cm/min is swung wide
Degree: 2mm, hunting frequency: 180Hz.
In the above various embodiments, the technological parameter of cover weldering in transverse beam assembly are as follows: main silk electric current 200A~210A, voltage:
24V~25V, paranema electric current: 210A~220A, voltage: 27V~29V, speed of welding: 65cm/min~70cm/min is swung wide
Degree: 1.5mm, hunting frequency: 180Hz.
A kind of welding method of railway vehicle component provided by the present invention is described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (28)
1. the welding method of railway vehicle component, which is characterized in that the welding method of each weld seam is specific as follows on the component:
S1, welding quality and welding efficiency corresponding to the different welding sequences that all weld seams are formed are obtained, and it is suitable to establish welding
Sequence and welding quality, the relationship of welding efficiency；
S2, comprehensively consider welding cost and weld heat input at least one factor determines actual welding quality and welding efficiency,
According to the actual welding quality of above-mentioned determination and welding efficiency from above-mentioned weld seam sequence with selected in welding quality, welding efficiency relationship
The welding sequence for taking the welding sequence of weld seam to operate as actual welding；The component is rail vehicle framework, the railcar
Framework mainly includes two curb girder components and the transverse beam assembly for being supported in two sides beam assembly, and the curb girder component includes surrounding
The curb girder main body of box-structure and spring strut positioned at curb girder main body both ends, the quadrangle of the curb girder main body are long weldering
Seam,
The circular weld formed between the both ends of the curb girder main body and two spring struts is respectively defined as first annular weldering
Seam, the second circular weld, third circular weld and fourth annular weld seam, wherein the first annular weld seam and the second circular weld
It is arranged up and down positioned at first end, the third circular weld and fourth annular weld seam are located at the second end and arrange up and down；
The welding procedure of each weld seam includes backing welding and filling cover weldering, and the backing welding of each weld seam carries out in the following manner
Welding: first being welded from the midpoint of long weld seam to the first end of the curb girder main body, until completing opposite with the long weld seam
The circular weld half cycle welding answered；Then welding gun returns the midpoint of the long weld seam, the second end of Xiang Suoshu curb girder main body into
Row welding, until completing to weld with the long weld seam to corresponding circular weld half cycle；Four long weld seams are completed according to above step
And the backing welding of circular weld；
Four long weld seams are respectively defined as the first long weld seam, the second long weld seam, the long weld seam of third and the 4th long weld seam, wherein institute
It states the first long weld seam and the long weld seam of the third is located at same level, the 4th long weld seam and the described first long weld seam are diagonal
Arrangement；
Wherein, long weld seam carries out the welding sequence of backing welding are as follows:
S200, the first long weld seam midpoint be starting solder joint, first complete the left half section of weld seam of the first long weld seam to first end welding
Weld the half cycle of first annular weld seam again afterwards；Then welding gun returns the midpoint of the first long weld seam, welds and completes to the second end
The half cycle of third circular weld is welded after the right half section of weld seam of first long weld seam again；
S210, the second long weld seam midpoint be starting solder joint, first complete the left half section of weld seam of the second long weld seam to first end welding
Weld the second circular weld half cycle again afterwards；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 right half section of weld seam of two long weld seams；
The midpoint of the long weld seam of S220, third is starting solder joint, first welds to first end and completes the left half section of weld seam of the long weld seam of third
Weld first annular weld seam residue half cycle again afterwards；Then welding gun returns the midpoint of the long weld seam of third, has welded to the second end
It is circumferential at welding third circular weld remaining half after the right half section of weld seam of the long weld seam of third；
S230, the 4th long weld seam midpoint be starting solder joint, first complete the left half section of weld seam of the 4th long weld seam to first end welding
Weld the second circular weld residue half cycle again afterwards；Then welding gun returns the midpoint of the 4th long weld seam, has welded to the second end
At the remaining half cycle for welding fourth annular weld seam after 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 component；
Wherein, two half cycles of above-mentioned circular weld are symmetrical about spring strut center longitudinal plane.
2. the welding method of railway vehicle component as described in claim 1, which is characterized in that obtain weldering simultaneously in step sl
It is connected into this and welding quality, the relationship of welding efficiency, weld heat input and welding quality, the relationship of welding efficiency；
Consider that the welding cost and two factor of the weld heat input determine the welding quality and institute simultaneously in step s 2
State welding efficiency.
3. the welding method of railway vehicle component as claimed in claim 2, which is characterized in that pass through Numerical-Mode in step sl
It is quasi- to obtain under different welding sequences, the curve graph of welding quality and welding efficiency；Under different welding costs, welding quality and welding
The curve graph of efficiency；Under different welding efficiencies, the curve graph of welding quality and welding efficiency；
The intersection point of three curves is calculated in step s 2, and by welding corresponding to the intersection point in proper order as actual welding operation
Welding sequence.
4. the welding method of railway vehicle component as described in any one of claims 1 to 3, which is characterized in that two curb girder groups
Part is the first curb girder component, second side beam assembly, and the transverse beam assembly includes the first crossbeam being supported between the beam assembly of two sides
The both ends of component, second cross beam component, the first crossbeam component and the second cross beam component extend through two curb girders
Component forms circular weld to be welded, first successively welds the interior annular that each transverse beam assembly and the curb girder component are formed
Then weld seam successively welds the exterior annular weld seam that each transverse beam assembly and the curb girder component are formed again；
Wherein each interior annular weld seam is welded in the following order: first crossbeam component and the first curb girder component
Interior annular weld seam → first crossbeam component of interior annular weld seam → second cross beam component and the first curb girder component and the
Interior annular weld seam → second cross beam component of two curb girder components and the interior annular weld seam of second side beam assembly.
5. the welding method of railway vehicle component as claimed in claim 4, which is characterized in that each exterior annular weld seam is pressed
Following sequence is welded: exterior annular weld seam → second cross beam component of first crossbeam component and the first curb girder component with
The exterior annular of the exterior annular weld seam of the first curb girder component → first crossbeam component and second side beam assembly
The exterior annular weld seam of weld seam → second cross beam component and second side beam assembly.
6. the welding method of railway vehicle component as claimed in claim 5, which is characterized in that each circular weld includes
Two procedures: backing welding and filling cover weldering；And in welding, after first successively carrying out backing welding to all weld seams, then successively
It is filled cover weldering.
7. the welding method of railway vehicle component as claimed in claim 6, which is characterized in that in the bottoming Welding,
Using double wire welding technique.
8. the welding method of railway vehicle component as claimed in claim 7, which is characterized in that the double wire welding technological parameter
Are as follows: tape pulse, main silk current range are as follows: 110A-120A；Main filament voltage are as follows: 15V-17V；Paranema current range are as follows: 90A-
100A；Paranema voltage are as follows: 12V-14V；Speed of welding are as follows: 80cm/min-85cm/min；Swing width is 1.0mm-1.5mm.
9. the welding method of railway vehicle component as claimed in claim 6, which is characterized in that in the filling cover Welding
In, using double wire welding technique.
10. the welding method of railway vehicle component as claimed in claim 9, which is characterized in that the double wire welding technique ginseng
Number are as follows: tape pulse, main silk current range are as follows: 200A-210A；Main filament voltage are as follows: 24V-25V；Paranema current range are as follows: 210A-
220A；Paranema voltage are as follows: 27V-29V；Speed of welding are as follows: 65cm/min-70cm/min；Swing width is 1.0mm-1.5mm.
11. the welding method of railway vehicle component as claimed in claim 6, which is characterized in that the same circular weld
Backing welding, the starting point position of filling cover weldering are different, and use the mariages starting the arc, cross arcing point 0.5mm paranema and backfill 0.8s
Receive arc.
12. the welding method of railway vehicle component as described in claim 1, which is characterized in that the filling of each weld seam is sealed
Face weldering carries out in the following order: the first long weld seam → first annular weld seam half cycle → long weld seam of third circular weld half cycle → the second
→ the second circular weld half cycle → fourth annular weld seam half cycle → long weld seam of third → first annular weld seam residue half cycle → third
Circular weld residue half cycle → the 4th long weld seam → the second circular weld residue half cycle → fourth annular weld seam residue half cycle.
13. the welding method of railway vehicle component as claimed in claim 12, which is characterized in that in filling cover welding,
The welding direction of four long weld seams is filled from one end to the other end.
14. the welding method of railway vehicle component as described in claim 1, which is characterized in that in the bottoming Welding,
Using monofilament welding procedure.
15. the welding method of railway vehicle component as claimed in claim 14, which is characterized in that the monofilament welding procedure ginseng
Number are as follows: tape pulse, current range are as follows: 140A-150A；Main filament voltage are as follows: 15V-17V；Speed of welding are as follows: 45cm/min-50cm/
min；Swing width is 1.0mm-1.5mm；Hunting frequency 120Hz.
16. the welding method of railway vehicle component as described in claim 1, which is characterized in that in the filling cover welder
In skill, using double wire welding technique.
17. the welding method of railway vehicle component as claimed in claim 16, which is characterized in that the double wire welding technique ginseng
Number are as follows: tape pulse, main silk current range are as follows: 110A-120A；Main filament voltage are as follows: 15V-17V；Paranema current range are as follows: 90A-
100A；Paranema voltage are as follows: 12V-14V；Speed of welding are as follows: 80cm/min-85cm/min；Swing width is 1.0mm-1.5mm.
18. the welding method of railway vehicle component as described in any one of claims 1 to 3, which is characterized in that the crossbeam group
Part includes first crossbeam ontology, second cross beam ontology, positioned at two longitudinal beams between the two and is located at described first
Other components on cross-beam body and the second cross beam ontology；When to transverse beam assembly welding, carry out in the following manner:
The weld joint on inner side that S300, two longitudinal beams of welding and two sides cross-beam body are formed；
S310, the weld seam that other components and respective girders ontology are formed is welded.
19. the welding method of railway vehicle component as claimed in claim 18, which is characterized in that each described interior in step S300
Side weld welds in the following way:
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 welds, and preceding two weld seam is located at the same side.
20. the welding method of railway vehicle component as claimed in claim 19, which is characterized in that each inside weldering in every one side
When seam welding, welding direction is to be welded outward by center.
21. the welding method of railway vehicle component as claimed in claim 18, which is characterized in that step S310 specifically:
S311, each components being welded on two cross-beam bodies are grouped according to loading, components position, grouping according to
According to: it will be located on same cross-beam body and be divided into first group about the asymmetrical components of center cross-sectional, same cross will be located at
It is divided into second group on beam ontology and about the symmetrical components of center cross-sectional；
S312, the welding for being first sequentially completed each components weld seam in first group, then carry out the weldering of each components weld seam in second group
It connects.
22. the welding method of railway vehicle component as claimed in claim 21, which is characterized in that in first group each components into
When row welding, after being sequentially completed the welding of each weld seam in the first face, then the welding of each weld seam in the second face is successively carried out, then carries out the
The welding of each components weld seam in two groups；
Wherein the weld seam in first group on each the first face of components and the second face is welded in the following manner: staggeredly welding is formed
Weld seam on two cross-beam bodies, it is preferential to weld the big weld seam of loading, and the welding direction of each weld seam be from outer end to
Center weld.
23. the welding method of railway vehicle component as claimed in claim 22, which is characterized in that first group of the components
Including the motor hanger and first gear case flap seat being installed on the first crossbeam ontology, and it is installed on second cross beam
Two motor hangers and second gear case flap seat on ontology；When carrying out first group of components welding, the first face and the second face
It is welded in the following order: two motor hangers, a motor hanger, second gear case, first gear case and corresponding cross
The weld seam that beam ontology is formed.
24. the welding method of railway vehicle component as claimed in claim 22, which is characterized in that zero in described second group
Part includes the first braking flap seat and the second braking flap seat for being installed on the first crossbeam outer body, and is installed on described the
Third braking flap seat, the 4th braking flap seat on the outside of two cross-beam bodies；The welding sequence of each braking flap seat are as follows: first complete wherein one
The welding of one group of braking flap seat on cross-beam body, then the welding of one group of braking flap seat on another cross-beam body is carried out, complete each system
After the welding of dynamic the first face of flap seat weld seam, then carry out the welding of the second face weld seam, and respectively brake the welding direction of flap seat by
Center is outward.
25. the welding method of railway vehicle component as claimed in claim 18, which is characterized in that the weld seam of each group components
Welding procedure includes backing welding, filling weldering and cover weldering, and three is all made of double wire welding；Each weld seam is sequentially completed bottoming
Postwelding, then it is sequentially completed filling weldering, finally it is sequentially completed cover weldering.
26. the welding method of railway vehicle component as claimed in claim 25, which is characterized in that the technique of the backing welding is joined
Number are as follows: main silk electric current 110A ~ 120A, voltage: 15V ~ 17V, paranema electric current: 90A ~ 100A；Voltage: 12V ~ 14V；Speed of welding:
80cm/min ~ 85cm/min, swing width: 1.5mm；Hunting frequency: 180Hz.
27. the welding method of railway vehicle component as claimed in claim 25, which is characterized in that the technique ginseng of the filling weldering
Number are as follows: 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: 2mm, hunting frequency: 180Hz.
28. the welding method of railway vehicle component as claimed in claim 25, which is characterized in that the technique ginseng of the cover weldering
Number are as follows: 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: 1.5mm, hunting frequency: 180Hz.
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|---|---|---|---|---|
| CN108637510B (en) * | 2018-04-26 | 2021-07-16 | 广州文冲船厂有限责任公司 | Welding method of marine vertical ladder |
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| CN111993053B (en) * | 2020-06-28 | 2022-05-27 | 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 |
| 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 |
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