CN102773617B - Assembly and welding process method for front window framework of cab of aluminum alloy vehicle body - Google Patents
Assembly and welding process method for front window framework of cab of aluminum alloy vehicle body Download PDFInfo
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- CN102773617B CN102773617B CN201110119852.9A CN201110119852A CN102773617B CN 102773617 B CN102773617 B CN 102773617B CN 201110119852 A CN201110119852 A CN 201110119852A CN 102773617 B CN102773617 B CN 102773617B
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Abstract
The invention relates to an assembly and welding process method and an assembly and welding process template for a front window framework of a cab of an aluminum alloy vehicle body. A ring beam, a cross beam and a side beam in the front window framework are formed by taking the process template as reference by using a forming mould, so that each section meets the design requirement of the three-dimensional curved surface size; the formed front window framework is subjected to edge cutting, and a welding bevel is machined to finish the pre-assembly of the front window framework; each plug port of the pre-assembled front window framework is welded; and finally the point-fixed and formed front window framework is welded with an integral framework of the cab and the structural requirements of the cab are met. The forming and the assembly and welding of the front window framework are all finished on a process template, so that the influence of different tool accuracies, human factors and the like on the forming quality is avoided, and meanwhile, the influence of factors such as each tool accuracy error on the assembly and welding quality can be avoided; and in addition, since a plurality of points of the same workpiece are effectively constrained, the overall shape is effectively controlled to meet the assembly and welding requirements.
Description
Technical field
The present invention relates to a kind of assembly welding technique of railway vehicle cab front window skeleton, particularly a kind of aluminum alloy bodywork cab front window skeleton assembly welding technique method and technique template, belong to vehicle body of railway vehicle manufacturing technology field.
Background technology
EMU aluminum alloy bodywork mainly forms integral solder structure by underframe, side wall, headwall, roof and drivers' cab.Wherein drivers' cab is not only the key factor of EMU hoisting velocity, is also that the perfection of EMUs speed and aesthetic feeling embodies, and therefore the workmanship of cab front window skeleton is most important.
Cab front window skeleton is mainly made up of collar tie beam, crossbeam and curb girder, because front window skeleton is all three-dimension curved surface structure, therefore moulding difficulty is larger, formed precision is wayward, after moulding simultaneously, welding deformation is wayward, easily cause the distortion of drivers' cab window, affect front screen and install and drivers' cab profile.
Summary of the invention
Main purpose of the present invention is to address the above problem, and a kind of aluminum alloy bodywork cab front window skeleton assembly welding technique method that can effectively ensure front window skeleton forming quality and welding quality is provided.
Another main purpose of the present invention is, the aluminum alloy bodywork cab front window framework process template of a kind of effective guarantee front window skeleton forming quality and welding quality is provided.
For achieving the above object, technical scheme of the present invention is:
A kind of aluminum alloy bodywork cab front window skeleton assembly welding technique method, comprises the steps:
(1) collar tie beam, crossbeam and the side beam sectional material of composition cab front window skeleton are carried out respectively to cutting die, according to the various material assembling of figure paper conversion socket;
(2) utilize mould the collar tie beam in front window skeleton, crossbeam and curb girder to be carried out to moulding taking technique template as benchmark, make each section bar meet the designing requirement of three-dimension curved surface size;
(3) the front window skeleton after moulding is carried out to trimming, cut is welded in processing, completes pre-group of front window skeleton;
(4) by fixed the front window skeleton after pre-group, each socket of front window skeleton is welded;
(5) the front window skeleton of the solid aftershaping of point and drivers' cab entirety skeleton are welded, and meet drivers' cab structural requirement;
Described technique template is the steel stereoscopic device consistent with cab front window skeleton three-dimension curved surface to be processed, in described technique template, be processed with the reference model groove that meets the collar tie beam, crossbeam and the designing requirement of side beam sectional material three-dimension curved surface that form described front window skeleton, above-mentioned steps (2), (3), (4) are all to complete in described technique template.
Further, in above-mentioned steps (2), described technique template is the steel stereoscopic device consistent with described front window skeleton three-dimension curved surface, formed by base and several crisscross steel discs, in described technique template, be processed with in advance the reference model groove that meets collar tie beam, crossbeam and the designing requirement of curb girder three-dimension curved surface.
Further, described technique template is by the threedimensional model of front window skeleton is cut into slices and obtained three-dimensional line chart at the section of diverse location, add again technological design key element, each steel disc is cut according to the three-dimensional line chart of relevant position, finally the steel disc after each cutting is assembled.
Further, in above-mentioned steps (2), the moulding of described front window skeleton Girth, crossbeam and curb girder adopts sectional forming.
Further, the gap after described front window skeleton forming and between described technique template is not more than 2mm.
Further, the gap, junction of the each parts of described front window skeleton is less than 3mm.
Further, in above-mentioned steps (4), each socket of described front window skeleton carries out tack welding.
Further, in above-mentioned steps (4), described front window skeleton is fixed by blocking blue fixing with welding procedure beam.
To sum up content, a kind of aluminum alloy bodywork cab front window skeleton assembly welding technique method of the present invention and technique template, moulding and the assembly welding of front window skeleton are all completed in a technique template, avoid because the factors such as each frock precision is different and artificial affect Forming Quality, meanwhile, can avoid because the factors such as each frock trueness error affect assembly welding quality, in addition, owing to obtaining operative constraint at same workpiece multiple spot, effectively control monnolithic case and met assembly welding requirement.
Brief description of the drawings
Fig. 1 structural diagrams intention of the present invention;
Fig. 2 crossbeam of the present invention and curb girder section structure schematic diagram;
Fig. 3 collar tie beam section structure of the present invention schematic diagram;
Fig. 4 technique formwork structure of the present invention schematic diagram.
If Fig. 1 is to as shown in Fig. 4, collar tie beam 1, crossbeam 2, curb girder 3, technique template 4, base 5, steel disc 6, reference model groove 7.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, cab front window skeleton is mainly made up of collar tie beam 1, crossbeam 2 and curb girder 3, and curb girder 3 is two, jointly forms a front window skeleton with three-dimension curved surface shape.
Crossbeam 2 and curb girder 3 adopt aluminium alloy extrusions as shown in Figure 2, collar tie beam 1 adopts aluminium alloy extrusions as shown in Figure 3, wherein, the material of the aluminium alloy extrusions of crossbeam 2 and curb girder 3 is A6N01S-T5, the material of the aluminium alloy extrusions of collar tie beam 1 is A5083S-H112, between collar tie beam 1, crossbeam 2 and the each parts of curb girder 3, is welded and is assembled by socket.
As shown in Figure 4, in aluminum alloy bodywork cab front window skeleton assembly welding technique method, need a technique template 4, technique template 4 is a steel stereoscopic device, it has the three-dimension curved surface shape consistent with cab front window skeleton, and the moulding of front window skeleton and assembly welding are being all to complete in this technique template 4.
For alleviating the overall weight of technique template 4, reduce difficulty of processing, simultaneously, be convenient to carry out moulding and assembly welding in technique template 4, technique template 4 is made up of several steel discs 6 of base 5 and crisscross setting, is processed with in advance the reference model groove 7 that meets front window skeleton Girth 1, crossbeam 2 and curb girder 3 three-dimension curved surface designing requirements in technique template 4.
In technique template 4, reference model groove 7 is by the threedimensional model of front window skeleton is cut into slices and obtained three-dimensional line chart at diverse location section, add again technological design key element, utilize laser cutting machine to cut respectively manufacture to different steel discs 6, finally each steel disc 6 is assembled, be positioned on the steel disc 6 at reference model groove 7 places, thering is the tangent line identical with curb girder 3 section material section curves with collar tie beam 1, the crossbeam 2 of position.
Collar tie beam 1, crossbeam 2 and curb girder 3 in front window skeleton utilize mould to carry out moulding according to reference model groove 7, contrast devious with reference model groove 7, just re-start correction, contrast again, until fit like a glove with reference model groove 7, the gap after wherein requiring front window skeleton forming and between reference model groove 7 is not more than 2mm.Like this, just can effectively ensure the Forming Quality of front window skeleton.
As shown in Figure 1, aluminum alloy bodywork cab front window skeleton assembly welding technique method of the present invention, comprises the steps:
(1) collar tie beam 1, crossbeam 2 and curb girder 3 section bars of composition cab front window skeleton are carried out respectively to cutting die, according to the various material assembling of figure paper conversion socket.
(2) utilize forcing press to carry out moulding to the collar tie beam 1 in front window skeleton, crossbeam 2 and curb girder 3, make each section bar meet the designing requirement of three-dimension curved surface size.
In this process, the moulding of front window skeleton Girth 1, crossbeam 2 and curb girder 3, taking technique template 4 as benchmark, completes in technique template 4.
In order to improve the Forming Quality of front window skeleton, the moulding of collar tie beam 1, crossbeam 2 and curb girder 3 adopts the technique of sectional forming.Contrast with reference model groove 7 respectively for every section, to position devious wherein, just re-start correction adjusting, then contrast with reference model groove 7, until the gap after front window skeleton forming and between reference model groove 7 is not more than 2mm, make front window skeleton meet the curved surface dimensional requirement of technique template 4.
(3) the front window skeleton line after die mould located and carry out trimming operation, the required cut of reprocessing welding, now, requires collar tie beam 1, crossbeam 2 and the gap, curb girder 3 each parts junction of front window skeleton to be less than 3mm, to meet welding requirements, complete pre-group of front window skeleton.
This process is also to complete in technique template 4.
(4) by fixed the front window skeleton after pre-group, then the crossbeam 2 in front window skeleton, curb girder 3 and collar tie beam 1 spigot are carried out to tack welding, simplify welding procedure, shorten weld interval, enhance productivity.
Front window skeleton can be fixed by blocking blue (not shown), also can fix by welding multiple technique beam (not shown)s, and each parts are because thermal stress shrinks distortion when preventing from welding.
This process is also to complete in technique template 4.
(5) after solid, take off the card orchid fixing for front window skeleton, utilize lifting appliance that it is separated with technique template 4, finally front window skeleton is carried out to assembly welding with drivers' cab entirety skeleton, and meet drivers' cab structural requirement.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. an aluminum alloy bodywork cab front window skeleton assembly welding technique method, is characterized in that: comprises the steps,
(1) collar tie beam, crossbeam and the side beam sectional material of composition cab front window skeleton are carried out respectively to cutting die, according to the various material assembling of figure paper conversion socket;
(2) utilize mould the collar tie beam in front window skeleton, crossbeam and curb girder to be carried out to moulding taking technique template as benchmark, make each section bar meet the designing requirement of three-dimension curved surface size;
(3) the front window skeleton after moulding is carried out to trimming, cut is welded in processing, completes pre-group of front window skeleton;
(4) by fixed the front window skeleton after pre-group, each socket of front window skeleton is welded;
(5) the front window skeleton of the solid aftershaping of point and drivers' cab entirety skeleton are welded, and meet drivers' cab structural requirement;
Described technique template is the steel stereoscopic device consistent with cab front window skeleton three-dimension curved surface to be processed, in described technique template, be processed with the reference model groove that meets the collar tie beam, crossbeam and the designing requirement of side beam sectional material three-dimension curved surface that form described front window skeleton, above-mentioned steps (2), (3), (4) are all to complete in described technique template.
2. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 1, it is characterized in that: in above-mentioned steps (2), described technique template is the steel stereoscopic device consistent with described front window skeleton three-dimension curved surface, formed by base and several crisscross steel discs, in described technique template, be processed with in advance the reference model groove that meets collar tie beam, crossbeam and the designing requirement of curb girder three-dimension curved surface.
3. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 2, it is characterized in that: described technique template is by the threedimensional model of front window skeleton is cut into slices and obtained three-dimensional line chart at the section of diverse location, add again technological design key element, each steel disc is cut according to the three-dimensional line chart of relevant position, finally the steel disc after each cutting is assembled.
4. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 1, is characterized in that: in above-mentioned steps (2), the moulding of described front window skeleton Girth, crossbeam and curb girder adopts sectional forming.
5. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 4, is characterized in that: the gap after described front window skeleton forming and between described technique template is not more than 2mm.
6. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 4, is characterized in that: the gap, junction of the each parts of described front window skeleton is less than 3mm.
7. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 1, is characterized in that: in above-mentioned steps (4), each socket of described front window skeleton carries out tack welding.
8. aluminum alloy bodywork cab front window skeleton assembly welding technique method according to claim 1, is characterized in that: in above-mentioned steps (4), described front window skeleton is fixed by blocking blue fixing with welding procedure beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110119852.9A CN102773617B (en) | 2011-05-10 | 2011-05-10 | Assembly and welding process method for front window framework of cab of aluminum alloy vehicle body |
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| CN201110119852.9A CN102773617B (en) | 2011-05-10 | 2011-05-10 | Assembly and welding process method for front window framework of cab of aluminum alloy vehicle body |
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| CN102773617A CN102773617A (en) | 2012-11-14 |
| CN102773617B true CN102773617B (en) | 2014-11-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104384740B (en) * | 2014-11-17 | 2016-06-01 | 长春轨道客车股份有限公司 | EMUs drivers' cab constructed of aluminium roof assembly-welding processing method |
| CN104551425A (en) * | 2014-11-24 | 2015-04-29 | 长春轨道客车股份有限公司 | Adjustment and repair-free assembly welding method for three-dimensional bent aluminum alloy beam column and three-dimensional curved open section |
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| JP2006272492A (en) * | 2005-03-29 | 2006-10-12 | Nissan Motor Co Ltd | Method and device for part assembling, and attaching/detaching tool for part assembling |
| JP4756066B2 (en) * | 2008-11-07 | 2011-08-24 | 日本車輌製造株式会社 | Manufacturing method for structures for railway vehicles |
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| CN100475428C (en) * | 2007-04-30 | 2009-04-08 | 李文秀 | Orientation device with a big elbow and the processing method of the clamping board |
| CN201168862Y (en) * | 2008-04-03 | 2008-12-24 | 唐山轨道客车有限责任公司 | Universal tooling for arc section bar assembly welding |
| CN201291868Y (en) * | 2008-11-08 | 2009-08-19 | 永济新时速电机电器有限责任公司 | Railcar operator's cab |
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Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Applicant after: CHINA RAILWAY CORPORATION Applicant after: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. Address before: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Applicant before: Transport Bureau of Railway Department Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY CORPORATION Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee before: CHINA RAILWAY CORPORATION Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |