CN102528239A - Automatic welding method and positioning device of small side wall of concave-bottom double-layer transport vehicle - Google Patents
Automatic welding method and positioning device of small side wall of concave-bottom double-layer transport vehicle Download PDFInfo
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- CN102528239A CN102528239A CN2012100151892A CN201210015189A CN102528239A CN 102528239 A CN102528239 A CN 102528239A CN 2012100151892 A CN2012100151892 A CN 2012100151892A CN 201210015189 A CN201210015189 A CN 201210015189A CN 102528239 A CN102528239 A CN 102528239A
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Abstract
The invention relates to an automatic welding method and a positioning device of a small side wall of a concave-bottom double-layer transport vehicle. A backup plate is arranged on a side wall plate, each of two sides of the backup plate is respectively provided with an L-shaped hook, and the hook part of each hook is arranged at the top end of a side beam. A travelling wheel of a magnetic angle welding trolley is arranged on a side beam web, and two depended wheels of the magnetic angle welding trolley are arranged on the backup plate in a leaning-against mode. The length of two connecting rods of the magnetic angle welding trolley is regulated, and the magnetic angle welding trolley is adsorbed on the side beam web through the own magnetic property. A welding gun is clamped and fixed in calipers of the magnetic angle welding trolley, and an included angle between the welding gun and the side wall plate and a distance between a welding wire end head and the side wall plate are adjusted. Related welding process parameters are set. A travelling switch of the magnetic angle welding trolley is started, whiling walking along the backup plate, the depended wheels drive the magnetic angle welding trolley to walk on the side beam web, and the magnetic angle welding trolley transversely moves and automatically tracks and locates the whole welding process. The automatic welding method and the positioning device can be widely applied to the welding process of the small side wall of the concave-bottom double-layer transport vehicle.
Description
Technical field
The present invention relates to a kind of automatic soldering method and positioner, particularly a kind of automatic soldering method and positioner that is applicable to the little side wall of the double-deck transport vehicle of concave bottom of various miniature, kart such as railway transportation car, SUV, MPV, picking-up vehicle.
Background technology
The double-deck transport vehicle of concave bottom is mainly used in higher automobiles such as the light-duty car of railway transportation, SUV, MPV, picking-up vehicle; Simultaneously also can transport homemade and various miniature, the kart of import, this type car is a kind of vehicle that the scope of application is the wideest, pattern is up-to-date in the present railway transportation car.Rice surplus the full car weld seam of the car body of this type car reaches 2700; Weld seam is many, the welding difficulty is big; And little side wall is the main load bearing component of this car, mainly is made up of framed side wallboard, curb girder, following side bar etc., and wherein framed side wallboard is the outer outside long straight weld of car body that is exposed at the lap weld of curb girder; Every total length is 17080mm; Prior art normally adopts manual welding, and weld interval is long, and appearance of weld is relatively poor; The presentation quality of car body and welder's operating efficiency have greatly been influenced; And weld seam is because the welding tire of configure dedicated (welding tire: refer to be exclusively used in the welding of the workpiece that assembles) not here, and be on assembling tyre, to carry out manual welding (assembling tyre: each parts is assembled together by given size) all the time early stage when producing, owing to narrow between the assembling sky, the position of foetus special automation welding jig can not be set; The manual welding quality fluctuation is big, weld seam repair rate height is the subject matter during this parts welding is produced, and therefore how to realize that the weld joint automatized welding of little side wall overlength is the problem that presses for solution at present.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of automatic soldering method and positioner that can improve welder's welding efficiency and obviously improve the little side wall of the double-deck transport vehicle of concave bottom of weldquality.
For realizing above-mentioned purpose; The present invention takes following technical scheme: the automatic soldering method of the little side wall of the double-deck transport vehicle of a kind of concave bottom; May further comprise the steps: 1) on framed side wallboard, be provided with one become parallel position relationship with weld seam to be welded backup plate; The both sides of said backup plate are respectively arranged with a upwardly extending L shaped hook, and the hook portion of said hook is hung on the top of curb girder; 2) road wheel with a magnetic force fillet welding dolly is placed on the curb girder web; With two rollers of magnetic force fillet welding dolly by being located on the said backup plate; And the length of regulating magnetic force fillet welding dolly two connecting rods, magnetic force fillet welding dolly abuts on the curb girder web through the magnetic absorption of self; 3) with the welding gun clamping and be fixed in the clamp of magnetic force fillet welding dolly, the angle of adjustment welding gun and framed side wallboard and welding wire termination are apart from the length of framed side wallboard; 4) set the associated welds technological parameter; 5) the walking switch of startup magnetic force fillet welding dolly; Driving magnetic force fillet welding dolly when roller is walked along backup plate walks on the curb girder web; Utilize the parallel position relationship of backup plate and weld seam to be welded, magnetic force fillet welding dolly laterally moves automatic track and localization whole welding process.
The length of regulating magnetic force fillet welding dolly two connecting rods said step 2) is: magnetic force fillet welding dolly is wherein lacked 5mm～15mm along the connecting rod length of direction of advance than the length of another connecting rod.
The angle of welding gun and framed side wallboard is 15 °～25 ° in the said step 3), and the welding wire termination is 0.5～1mm apart from the length of framed side wallboard.
Welding condition comprises speed of welding, welding current, arc voltage, dry extension of electrode degree, gas flow in the said step 4); Said speed of welding is 850～1000mm/min, and said welding current is 240～260A, and said arc voltage is 25～28V, and said dry extension of electrode degree is 12～18mm, and said gas flow is 15～20L/min.
MAG mixed gas arc welding is taked in the welding of said framed side wallboard and curb girder, and it is to be 80% Ar and 20% CO by volume ratio that welding wire adopts TH550-NQ-II, protective gas
2Form, gage of wire is 1.2mm.
Realize the automatic apparatus for welding and positioning of the little side wall of the double-deck transport vehicle of a kind of concave bottom of said method; It is characterized in that: it comprises that one is arranged on the backup plate that becomes parallel position relationship on the framed side wallboard and with weld seam to be welded; The both sides of said backup plate are respectively arranged with a upwardly extending L shaped hook, and the hook portion of said hook is hung on the top of curb girder.
Said backup plate adopts channel-section steel to be made, and channel-section steel adopts 5 types of GB/T707-1998 standard code, and web is that 50mm, leg height are that 37mm, length are 6m.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is owing to be provided with an apparatus for welding and positioning; Apparatus for welding and positioning comprises that one is the backup plate of parallel position relationship with weld seam, and the backup plate two ends are welded with a L shaped hook respectively, are affiliated at the curb girder top two; When therefore welding two rollers of magnetic force fillet welding dolly are walked along backup plate; Make the overlength weld seam of little side wall realize automatic welding, effectively improved welder's operating efficiency, and then it is above that production efficiency is doubled.2, backup plate of the present invention adopts channel-section steel to be made, because the rigidity and the linearity of channel-section steel are better, and not yielding; Therefore can guarantee the linearity of weld seam well; Weld seam by weldering partially, has not significantly promoted welding quality when making welding, has significantly reduced the weld seam repair rate.The present invention can be widely used in the welding process of the little side wall of the double-deck transport vehicle of concave bottom.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is that the A of Fig. 1 is to sketch map
Fig. 3 is the structural representation of apparatus for welding and positioning of the present invention
Fig. 4 is that the A of Fig. 3 is to sketch map
Fig. 5 is a welding gun of the present invention angle of inclination sketch map (leftward winding)
Fig. 6 is that sketch map is looked on Fig. 5 left side
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
Shown in Fig. 1～4; The present invention includes a welding identical with prior art with magnetic force fillet welding dolly 1, the bottom of magnetic force fillet welding dolly 1 is provided with four road wheels 2, and magnetic force fillet welding dolly 1 is provided with two L shaped connecting rods 3; The L shaped head of each connecting rod 3 is provided with a roller 4; And center, magnetic force fillet welding dolly 1 side is provided with clamp 5, during use, grips a welding gun 6 in the clamp 5; Characteristics of the present invention are also to comprise an apparatus for welding and positioning 7; Apparatus for welding and positioning 7 comprises that one is the backup plate 71 of parallel position relationship with weld seam to be welded, the two ends of backup plate 71 extended upward respectively L shaped hook 72, two hooks 72 all hook portion be affiliated to respectively at the top (top airfoil) of surveying beam 8.
In the foregoing description; Backup plate 71 can adopt channel-section steel to be made; The channel-section steel that embodiments of the invention adopt is 5 types of GB/T707-1998 standard code; Web is that 50mm, leg height (two aerofoil height) are 6m for 37mm, length, and spatter is removed easily for ease, the precoating layer antirust paint on the channel-section steel surface.
Among above-mentioned each embodiment, hook 72 adopts L shaped angle steel.
Among above-mentioned each embodiment, magnetic force fillet welding dolly 1 can adopt the automatic fillet welding dolly of CS-5 (as example, being not limited thereto).
Like Fig. 1, Fig. 5, shown in Figure 6, adopt apparatus for welding and positioning of the present invention 7 and magnetic force fillet welding dolly 1, when the lap weld of the curb girder 8 of the little side wall of the double-deck transport vehicle of concave bottom and framed side wallboard 9 is welded automatically, may further comprise the steps:
1) before the welding; Two hooks, 72 the hook portion of apparatus for welding and positioning 7 is affiliated to the top at curb girder 8; With two rollers 4 of magnetic force fillet welding dolly 1 by being located on the backup plate 71; With magnetic force fillet welding dolly 1 wherein along connecting rod 3 length adjustment of direction of advance than another short slightly 5mm～15mm, and the road wheel 2 of magnetic force fillet welding dolly 1 is placed on the web of curb girder 8, magnetic force fillet welding dolly 1 is abutted on the web of curb girder 8 through the magnetic absorption of self.
2) with welding gun 6 clampings and be fixed in the clamp 5 of magnetic force fillet welding dolly 1; Because the thickness of curb girder 8 and the thickness of framed side wallboard 9 differ bigger; Framed side wallboard is by burn-through in order to prevent to weld; Therefore need the angle and the length of welding wire termination apart from framed side wallboard 9 of adjustment welding gun 6 and framed side wallboard 9, its angular range: 15 °～25 °, while welding wire termination is 0.5～1mm apart from the length of framed side wallboard 9.
3) set welding conditions (welding condition is specifically referring to table 1) such as the welding speed of travel, welding current, arc voltage, dry extension of electrode degree and gas flow.
The welding condition of table 1 framed side wallboard and curb girder
4) the walking switch of startup magnetic force fillet welding dolly 1; Roller 4 drives magnetic force fillet welding dolly 1 and on the curb girder web, walks when backup plate 71 is walked; Because backup plate 71 becomes parallel position relationship with weld seam to be welded, magnetic force fillet welding dolly 1 laterally moves automatic track and localization whole welding process.
In the foregoing description, framed side wallboard 9 is taked MAG mixed gas arc welding with the welding of curb girder 8, and welding wire adopts TH550-NQ-II, and protective gas is to be 80% Ar and 20% CO by volume ratio
2Form, gage of wire φ is 1.2mm, adopts CO
2/ MAG welding machine.
Among above-mentioned each embodiment, the welder moves apparatus for welding and positioning 7 in welding process for ease, and length that therefore can backup plate 71 is set to 6 meters (as example; Be not limited thereto); Successively apparatus for welding and positioning 7 is passed forward behind 6 meters long weld seams of the each welding of welder, framed side wallboard and curb girder overlap 17.08 meters long weld seams, if when the framed side wallboard of the little side wall of every fan and curb girder lap weld are welded by a welder; Then need divide three sections welding successively, weld parts in about 20 minutes; If when being welded by two welders, then welded to two ends by the middle part, every welder divides two sections welding, welds parts in about 12 minutes.
Above-mentioned each embodiment only is used to explain the present invention; Wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; Every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (9)
1. the automatic soldering method of the little side wall of the double-deck transport vehicle of a concave bottom may further comprise the steps:
1) on framed side wallboard, be provided with one become parallel position relationship with weld seam to be welded backup plate, the both sides of said backup plate are respectively arranged with a upwardly extending L shaped hook, the hook portion of said hook is hung on the top of curb girder;
2) road wheel with a magnetic force fillet welding dolly is placed on the curb girder web; With two rollers of magnetic force fillet welding dolly by being located on the said backup plate; And the length of regulating magnetic force fillet welding dolly two connecting rods, magnetic force fillet welding dolly abuts on the curb girder web through the magnetic absorption of self;
3) with the welding gun clamping and be fixed in the clamp of magnetic force fillet welding dolly, the angle of adjustment welding gun and framed side wallboard and welding wire termination are apart from the length of framed side wallboard;
4) set the associated welds technological parameter;
5) the walking switch of startup magnetic force fillet welding dolly; Driving magnetic force fillet welding dolly when roller is walked along backup plate walks on the curb girder web; Utilize the parallel position relationship of backup plate and weld seam to be welded, magnetic force fillet welding dolly laterally moves automatic track and localization whole welding process.
2. the automatic soldering method of the little side wall of the double-deck transport vehicle of a kind of concave bottom as claimed in claim 1 is characterized in that: the length of regulating magnetic force fillet welding dolly two connecting rods said step 2) is: magnetic force fillet welding dolly is wherein lacked 5mm～15mm along the connecting rod length of direction of advance than the length of another connecting rod.
3. the automatic soldering method of the little side wall of the double-deck transport vehicle of a kind of concave bottom as claimed in claim 1, it is characterized in that: the angle of welding gun and framed side wallboard is 15 °～25 ° in the said step 3), the welding wire termination is 0.5～1mm apart from the length of framed side wallboard.
4. the automatic soldering method of the little side wall of the double-deck transport vehicle of a kind of concave bottom as claimed in claim 2, it is characterized in that: the angle of welding gun and framed side wallboard is 15 °～25 ° in the said step 3), the welding wire termination is 0.5～1mm apart from the length of framed side wallboard.
5. like the automatic soldering method of claim 1 or the little side wall of 2 or the 3 or 4 double-deck transport vehicles of described a kind of concave bottom, it is characterized in that: welding condition comprises speed of welding, welding current, arc voltage, dry extension of electrode degree, gas flow in the said step 4); Said speed of welding is 850～1000mm/min, and said welding current is 240～260A, and said arc voltage is 25～28V, and said dry extension of electrode degree is 12～18mm, and said gas flow is 15～20L/min.
6. like the automatic soldering method of claim 1 or the little side wall of the double-deck transport vehicles of 2 or 3 or 4 described a kind of concave bottoms; It is characterized in that: MAG mixed gas arc welding is taked in the welding of said framed side wallboard and curb girder; It is to be 80% Ar and 20% CO by volume ratio that welding wire adopts TH550-NQ-II, protective gas
2Form, gage of wire is 1.2mm.
7. the automatic soldering method of the little side wall of the double-deck transport vehicle of a kind of concave bottom as claimed in claim 5; It is characterized in that: MAG mixed gas arc welding is taked in the welding of said framed side wallboard and curb girder; It is to be 80% Ar and 20% CO by volume ratio that welding wire adopts TH550-NQ-II, protective gas
2Form, gage of wire is 1.2mm.
8. realize automatic apparatus for welding and positioning like the little side wall of the double-deck transport vehicle of a kind of concave bottom of each said method of claim 1～7; It is characterized in that: it comprises that one is arranged on the backup plate that becomes parallel position relationship on the framed side wallboard and with weld seam to be welded; The both sides of said backup plate are respectively arranged with a upwardly extending L shaped hook, and the hook portion of said hook is hung on the top of curb girder.
9. the automatic apparatus for welding and positioning of the little side wall of the double-deck transport vehicle of a kind of concave bottom as claimed in claim 8; It is characterized in that: said backup plate adopts channel-section steel to be made; Channel-section steel adopts 5 types of GB/T707-1998 standard code, and web is that 50mm, leg height are that 37mm, length are 6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210015189 CN102528239B (en) | 2012-01-17 | 2012-01-17 | Automatic welding method and positioning device of small side wall of concave-bottom double-layer transport vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210015189 CN102528239B (en) | 2012-01-17 | 2012-01-17 | Automatic welding method and positioning device of small side wall of concave-bottom double-layer transport vehicle |
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| CN102528239A true CN102528239A (en) | 2012-07-04 |
| CN102528239B CN102528239B (en) | 2013-08-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639573A (en) * | 2013-12-25 | 2014-03-19 | 招商局重工（江苏）有限公司 | Welding device and welding technology applying multifunctional fillet welding trolley to horizontal position welding |
| CN104249211A (en) * | 2013-06-26 | 2014-12-31 | 北汽福田汽车股份有限公司 | Carbon-dioxide gas shielded welding method for automotive outer parts |
| CN104625344A (en) * | 2014-12-30 | 2015-05-20 | 辽宁忠旺集团有限公司 | Welding technology for blocking aluminum alloy side wall of subway compartment |
| CN112548275A (en) * | 2020-12-08 | 2021-03-26 | 江南造船(集团)有限责任公司 | Automatic welding equipment suitable for high-strength steel structure multi-pole longitudinal bone |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249211A (en) * | 2013-06-26 | 2014-12-31 | 北汽福田汽车股份有限公司 | Carbon-dioxide gas shielded welding method for automotive outer parts |
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| CN103639573A (en) * | 2013-12-25 | 2014-03-19 | 招商局重工（江苏）有限公司 | Welding device and welding technology applying multifunctional fillet welding trolley to horizontal position welding |
| CN104625344A (en) * | 2014-12-30 | 2015-05-20 | 辽宁忠旺集团有限公司 | Welding technology for blocking aluminum alloy side wall of subway compartment |
| CN112548275A (en) * | 2020-12-08 | 2021-03-26 | 江南造船(集团)有限责任公司 | Automatic welding equipment suitable for high-strength steel structure multi-pole longitudinal bone |
| CN112548275B (en) * | 2020-12-08 | 2022-07-05 | 江南造船(集团)有限责任公司 | Automatic welding equipment suitable for high-strength steel structure multi-pole longitudinal bone |
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| CN102528239B (en) | 2013-08-14 |
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Address after: 100072 No. 1 Zhangguozhuangjia, Fengtai District, Beijing Patentee after: CRRC BEIJING ERQI VEHICLE Co.,Ltd. Address before: 100072 No. 1 Zhangguozhuangjia, Fengtai District, Beijing Patentee before: CSR Erqi Vehicle Co.,Ltd. |
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Effective date of registration: 20190530 Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee after: CRRC QIQIHAR ROLLING STOCK Co.,Ltd. Address before: 100072 No. 1 Zhangguozhuangjia, Fengtai District, Beijing Patentee before: CRRC BEIJING ERQI VEHICLE Co.,Ltd. |