CN102039906A - Chassis equipment compartment apron board structure and welding processing method thereof - Google Patents
Chassis equipment compartment apron board structure and welding processing method thereof Download PDFInfo
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- CN102039906A CN102039906A CN2009103082765A CN200910308276A CN102039906A CN 102039906 A CN102039906 A CN 102039906A CN 2009103082765 A CN2009103082765 A CN 2009103082765A CN 200910308276 A CN200910308276 A CN 200910308276A CN 102039906 A CN102039906 A CN 102039906A
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Abstract
The skirtboard structure of the underframe equipment compartment and the welding processing method thereof adopt a trapezoidal framework structure of three layers of aluminum plates, and the three layers of aluminum plates are sequentially welded according to the stacking sequence, thereby meeting the limited space requirement of the skirtboard and realizing the lightweight design of the equipment compartment on the premise of achieving the due strength and rigidity of the skirtboard. The skirtboard structure of the underframe equipment compartment comprises three layers of aluminum plates, and U-shaped aluminum profiles are welded at two side ends of the two layers of aluminum plates at the upper part respectively. The three aluminum plates are welded in sequence in a stacking order, and the three aluminum plates are different in width but the two aluminum plates are the same in longitudinal length. The skirtboard adopts the trapezoidal welded structure after three layers of aluminum plates are stacked, so that not only is the material saved, but also the space occupied by the whole skirtboard after being processed is saved. And based on current welding technique and processing equipment, the mode of welding between two pairs of aluminum plates both can guarantee to warp less, can satisfy the design requirement of intensity and rigidity again. And the two layers of aluminum plates stacked on the upper surface are subjected to perforation riveting through the press riveting studs.
Description
Technical field
The present invention is a kind of chassis apparatus cabin skirtboard structure and welding processing thereof that is applied to guideway vehicle, adopts the aluminium sheet of 3 layers of same thickness to form trapezoidal welded structure specifically, belongs to mechanical manufacturing field.
Background technology
The high-speed track vehicle of present domestic design and use, as urban light rail, subway, motor train unit and passenger train etc., equipment all holds and is installed in the chassis apparatus cabin under its car.
The skirtboard that constitutes the chassis apparatus cabin selects for use stainless steel to carry out spot welding processing usually, and the integral rigidity of corrosion-resistant steel skirtboard is bigger, is easy to deform in the spot welding course of processing, just is difficult to repair and adjust in case deform.
And the weight of corrosion-resistant steel skirtboard is bigger, is unfavorable for reducing car body self and the dynamic performance that directly has influence on guideway vehicle.
For satisfying the speed-raising requirement of guideway vehicle high-speed cruising, existing comparatively feasible measure is that the skirtboard material is replaced stainless steel sheet with aluminium sheet.When adopting spot welding to process aluminium matter skirtboard, though can reach the light-weight design requirement, seek out enough rigidity and intensity and then must select multilayer structure, as adopt the framed structure of three layers of aluminium sheet.Under the limitation of prior art level and welding gear, can not accurately realize quality after the welding of three layers of aluminium sheet, still there is certain deformation and has influence on skirtboard single-piece appearance.
Summary of the invention
Chassis apparatus of the present invention cabin skirtboard structure and welding processing thereof, its purpose is to address the above problem the trapezoidal framework structure that adopts three layers of aluminium sheet with defective, three layers of aluminium sheet in turn weld by stacking order, thereby should have under the prerequisite of strength and stiffness reaching skirtboard, satisfy the limited space requirement of skirtboard, realize the equipment compartment light-weight design.
Another goal of the invention is, improves the welding quality of three layers of aluminium sheet, reduces distortion, realization good surface appearance effect after welding.
For achieving the above object, described chassis apparatus cabin skirtboard structure mainly includes:
Three layers of aluminium sheet, the two-layer aluminium sheet two side ends of its middle and upper part is welded with U type aluminium section bar respectively.
The difference with the prior art part is, three layers of aluminium sheet weld successively by stacking order, and the width of three layers of aluminium sheet has nothing in common with each other, but wherein the longitudinal length of two-layer aluminium sheet is identical.
As above-mentioned basic scheme, skirtboard adopts three layers of trapezoidal welded structure after the aluminium sheet stack, not only the whole shared space of economical with materials and saving skirtboard processing back.
And based on existing welding technique and Fabricating machinery, the mode that aluminium sheet welds between any two both can guarantee to be out of shape less, can satisfy the designing requirement of strength and stiffness again.
For controlling and reducing the material cost of skirtboard and satisfy the skirtboard structural strength, can select existing common specification for use, promptly the thickness of three layers of aluminium sheet is 3mm.
Be further to improve welding processing quality and skirtboard appearance, the innovative approach that can take is, stacks superincumbent two-layer aluminium sheet by the self-clinching standoff riveted joint of boring a hole.
More preferred scheme is that self-clinching standoff should be selected rigidity and the higher material of intensity, selects stainless steel for use as self-clinching standoff.
For optimizing aluminium sheet operability of welding between any two and the quality that guarantees welding, in the process of welding, spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm.
Based on above-mentioned chassis apparatus cabin skirtboard structure, the present invention has also realized a kind of novel welding processing.That is,
The trapezium structure welding of three layers of aluminium sheet, the two-layer aluminium sheet two side ends in top is welded with U type aluminium section bar respectively, and the longitudinal length of its two-layer aluminium sheet in top is set at width identical but three layers of aluminium sheet and has nothing in common with each other,
In implementing the process of welding in twos between the aluminium sheet, in turn weld by stacking order.
Be to improve the self-clinching standoff installation accuracy control, can will stack superincumbent two-layer aluminium sheet welding earlier, punching again is by the self-clinching standoff riveted joint of boring a hole.
At the preferred implementation that stacks superincumbent two-layer aluminium sheet be, carry out the angle point weldering in vertical two side ends earlier, two-layer aluminium sheet carries out the angle point welding on top respectively then; Secondly in the overlapping side of two-layer aluminium sheet, carry out resistance spot welding respectively to two side ends, and point is solid intersegmental apart from five equilibrium by midway location.
At the preferred implementation that overlays following two-layer aluminium sheet be, two-layer aluminium sheet two side ends is welded with U type aluminium section bar respectively on top earlier, forms a structural framing, secondly in vertical two side ends U type aluminium section bar and nethermost aluminium sheet is carried out the angle point weldering;
Then, along the both lateral sides of the top aluminium sheet, carry out the resistance spot welding of intersecting routes with overlaying the overlapping side of following two-layer aluminium sheet;
Resistance spot welding is from a side, carry out to another side along the route of equicrural triangle, advance to a side from another side, the route that prolongs equicrural triangle then, and point is solid intersegmental apart from five equilibrium.
In sum, chassis apparatus cabin skirtboard structure of the present invention and welding processing thereof have following advantage and beneficial effect:
Adopt the aluminium sheet of three layers of 3mm thickness to carry out welding processing, can satisfy the strength and stiffness requirement of high-speed track vehicle chassis apparatus cabin skirtboard, under limited space condition, realize the equipment compartment lightweight with trapezoidal framework structure.
The welding quality of three layers of aluminium sheet is higher, prevents the distortion after the welding processing effectively, and the skirtboard appearance is preferable.
Help reducing the deadweight of car body underframe, improve its dynamic performance, can directly satisfy the speed-raising requirement of guideway vehicle operation.
Description of drawings
Now the present invention is described further in conjunction with the accompanying drawings.
Fig. 1 is a described chassis apparatus cabin skirtboard structural representation;
Fig. 2 is that the A-A of Fig. 1 is to generalized section;
Fig. 3 is that the B-B of Fig. 1 is to generalized section;
Fig. 4 is the welding processing scheme drawing that stacks superincumbent two-layer aluminium sheet;
Fig. 5 is the side schematic view of Fig. 4;
Fig. 6 be bore a hole the riveted joint after structural representation;
Fig. 7 is the side schematic view of Fig. 6;
Fig. 8 is the two-layer aluminium sheet that welded above overlaying and the welding processing scheme drawing of U type aluminium section bar;
Fig. 9 is that the C-C of Fig. 8 is to generalized section;
Extremely shown in Figure 9 as Fig. 1, aluminium sheet 1, aluminium sheet 2, aluminium sheet 3, self-clinching standoff 4, U type aluminium section bar 5.
The specific embodiment
Described aluminium sheet 1, aluminium sheet 2 and aluminium sheet 3 weld successively by stacking order, and the width of aluminium sheet 3 is greater than aluminium sheet 2, and the width of aluminium sheet 2 is greater than aluminium sheet 1.
When between aluminium sheet 1 and aluminium sheet 2, aluminium sheet 2 and aluminium sheet 3, welding respectively, spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm.
On the basis of adopting above-mentioned chassis apparatus cabin skirtboard structure, present embodiment has also been realized following welding processing:
Two-layer aluminium sheet two side ends is welded with U type aluminium section bar 5 respectively on the top of constitution equipment cabin skirtboard, and the width of aluminium sheet 3 is greater than aluminium sheet 2, and the width of aluminium sheet 2 is greater than aluminium sheet 1.
By stacking order in turn, earlier aluminium sheet 1 and aluminium sheet 2 are welded, again aluminium sheet 2 and aluminium sheet 3 are welded.
The concrete steps of welding processing are as follows:
Step (1), oil film and fire coat are removed in aluminium sheet 1 and aluminium sheet 2 two-sided polishings, with aluminium sheet (1) with aluminium sheet (2) is stacked together and use anchor clamps to compress, carry out the angle point weldering with fixing position each other in two side ends earlier, carry out the angle point welding in aluminium sheet 1 both sides and aluminium sheet 2 respectively afterwards; In aluminium sheet (1) and the overlapping side of aluminium sheet (2), carry out resistance spot welding respectively to two side ends then, and point is solid intersegmental apart from five equilibrium by midway location; Spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm;
Step (2), aluminium sheet (1) that spot welding is machined and aluminium sheet (2) are placed on the drilling machine and punch, be placed on then carry out self-clinching standoff (4) on the squeeze riveter riveted joint to form a riveted joint support;
Step (3) is fixed on above-mentioned riveted joint support and U type aluminium (5) on the workplatform with anchor clamps, carries out the frame corners welding;
Step (4) is placed on aluminium sheet (3) on the workplatform, and the global facility that step (3) is processed into is placed on the aluminium sheet (3) and with anchor clamps and fixes again; In vertical two side ends, U type aluminium section bar (5) and aluminium sheet (3) are carried out the angle point weldering earlier; Along the both lateral sides of aluminium sheet (1), carry out the resistance spot welding of intersecting routes then at aluminium sheet (2) and the overlapping side of aluminium sheet (3); Resistance spot welding is from a side, carry out to another side along the route of equicrural triangle, advance to a side from another side, the route that prolongs equicrural triangle then, and point is solid intersegmental apart from five equilibrium; Spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm.
Claims (10)
1. a chassis apparatus cabin skirtboard structure includes aluminium sheet (1), aluminium sheet (2) and aluminium sheet (3), is welded with U type aluminium section bar (5) respectively in the two side ends of the two-layer aluminium sheet in top, it is characterized in that:
Described aluminium sheet (1), aluminium sheet (2) and aluminium sheet (3) weld successively by stacking order, and the width of aluminium sheet (3) is greater than aluminium sheet (2), and the width of aluminium sheet (2) is greater than aluminium sheet (1);
The longitudinal length of aluminium sheet (1), aluminium sheet (2) is identical.
2. chassis apparatus according to claim 1 cabin skirtboard structure is characterized in that: the thickness of aluminium sheet (1), aluminium sheet (2) and aluminium sheet (3) is 3mm.
3. chassis apparatus according to claim 2 cabin skirtboard structure is characterized in that: aluminium sheet (1) and aluminium sheet (2) are by self-clinching standoff (4) riveted joint of boring a hole.
4. chassis apparatus according to claim 3 cabin skirtboard structure is characterized in that: self-clinching standoff (4) is selected stainless steel for use.
5. according to claim 1,2 or 3 described chassis apparatus cabin skirtboard structures, it is characterized in that: when between aluminium sheet (1) and aluminium sheet (2), aluminium sheet (2) and aluminium sheet (3), welding respectively, spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm.
6. the welding processing of a chassis apparatus cabin skirtboard is in the trapezoidal welded structure of three layers of aluminium sheet of constitution equipment cabin skirtboard, it is characterized in that: the longitudinal length of aluminium sheet (1), aluminium sheet (2) is identical,
The width of aluminium sheet (3) is greater than aluminium sheet (2), and the width of aluminium sheet (2) is greater than aluminium sheet (1),
By stacking order in turn, earlier aluminium sheet (1) and aluminium sheet (2) are welded, again aluminium sheet (2) and aluminium sheet (3) are welded.
7. the welding processing of chassis apparatus according to claim 6 cabin skirtboard is characterized in that: aluminium sheet (1) and aluminium sheet (2) are bored a hole, rivet by self-clinching standoff (4).
8. the welding processing of chassis apparatus according to claim 6 cabin skirtboard, it is characterized in that: when welding aluminum sheets (1) and aluminium sheet (2), pre-group spot welding is earlier promptly carried out the angle point weldering in vertical two side ends, carries out the angle point welding in aluminium sheet (1) both sides and aluminium sheet (2); In aluminium sheet (1) and the overlapping side of aluminium sheet (2), carry out resistance spot welding respectively to two side ends then, and point is solid intersegmental apart from five equilibrium by midway location.
9. according to the welding processing of claim 6 or 8 described chassis apparatus cabin skirtboards, it is characterized in that: when welding aluminum sheets (2) and aluminium sheet (3),, U type aluminium section bar (5) and aluminium sheet (3) are carried out fillet welding earlier in vertical two side ends;
Along the both lateral sides of aluminium sheet (1), carry out the resistance spot welding of intersecting routes then at aluminium sheet (2) and the overlapping side of aluminium sheet (3);
Resistance spot welding is from a side, carry out to another side along the route of equicrural triangle, advance to a side from another side, the route that prolongs equicrural triangle then, and point is solid intersegmental apart from five equilibrium.
10. the welding processing of chassis apparatus according to claim 9 cabin skirtboard, it is characterized in that: the concrete steps of welding processing are as follows,
Step (1), oil film and fire coat are removed in the two-sided polishing of aluminium sheet (1) (2), with aluminium sheet (1) with aluminium sheet (2) is stacked together and use anchor clamps to compress, carry out the angle point weldering with fixing position each other in two side ends earlier, carry out the angle point welding in aluminium sheet (1) both sides and aluminium sheet (2) respectively afterwards; In aluminium sheet (1) and the overlapping side of aluminium sheet (2), carry out resistance spot welding respectively to two side ends then, and point is solid intersegmental apart from five equilibrium by midway location; Spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm;
Step (2), aluminium sheet (1) that spot welding is machined and aluminium sheet (2) are placed on the drilling machine and punch, be placed on then carry out self-clinching standoff (4) on the squeeze riveter riveted joint to form a riveted joint support;
Step (3) is fixed on above-mentioned riveted joint support and U type aluminium (5) on the workplatform with anchor clamps, carries out the frame corners welding;
Step (4) is placed on aluminium sheet (3) on the workplatform, and the global facility that step (3) is processed into is placed on the aluminium sheet (3) and with anchor clamps and fixes again; In vertical two side ends, U type aluminium section bar (5) and aluminium sheet (3) are carried out the angle point weldering earlier; Along the both lateral sides of aluminium sheet (1), carry out the resistance spot welding of intersecting routes then at aluminium sheet (2) and the overlapping side of aluminium sheet (3); Resistance spot welding is from a side, carry out to another side along the route of equicrural triangle, advance to a side from another side, the route that prolongs equicrural triangle then, and point is solid intersegmental apart from five equilibrium; Spot size 〉=7.4mm, minimum Edge Distance 〉=13mm, spot pitch 〉=35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103082765A CN102039906B (en) | 2009-10-14 | 2009-10-14 | Welding method of skirtboard structure of underframe equipment cabin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103082765A CN102039906B (en) | 2009-10-14 | 2009-10-14 | Welding method of skirtboard structure of underframe equipment cabin |
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| Publication Number | Publication Date |
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| CN102039906A true CN102039906A (en) | 2011-05-04 |
| CN102039906B CN102039906B (en) | 2013-05-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097648A (en) * | 2014-07-15 | 2014-10-15 | 南车南京浦镇车辆有限公司 | Rail vehicle cab skirt welding process |
| CN109895799A (en) * | 2019-04-12 | 2019-06-18 | 青岛四方庞巴迪铁路运输设备有限公司 | Lightweight bottom plate and its welding method under a kind of vehicle |
| CN112975236A (en) * | 2021-01-25 | 2021-06-18 | 青岛四方庞巴迪铁路运输设备有限公司 | Assembly welding positioning method for open type underframe frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19806484A1 (en) * | 1998-02-17 | 1999-08-26 | Abb Daimler Benz Transp | Composite comprising metal surface layers and metal honeycomb core, useful in transport industry |
| CN100392128C (en) * | 2006-04-25 | 2008-06-04 | 东北轻合金有限责任公司 | Novel composite aluminium alloy plates and prepn. method |
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2009
- 2009-10-14 CN CN2009103082765A patent/CN102039906B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097648A (en) * | 2014-07-15 | 2014-10-15 | 南车南京浦镇车辆有限公司 | Rail vehicle cab skirt welding process |
| CN104097648B (en) * | 2014-07-15 | 2016-09-14 | 中车南京浦镇车辆有限公司 | Rail vehicle driver's head skirtboard welding procedure |
| CN109895799A (en) * | 2019-04-12 | 2019-06-18 | 青岛四方庞巴迪铁路运输设备有限公司 | Lightweight bottom plate and its welding method under a kind of vehicle |
| CN112975236A (en) * | 2021-01-25 | 2021-06-18 | 青岛四方庞巴迪铁路运输设备有限公司 | Assembly welding positioning method for open type underframe frame |
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| Publication number | Publication date |
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| CN102039906B (en) | 2013-05-29 |
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Address after: No.86, Jinhong East Road, Chengyang District, Qingdao City, Shandong Province Patentee after: Qingdao Sifang Alstom railway transportation equipment Co.,Ltd. Address before: No.86, Jinhong East Road, Chengyang District, Qingdao City, Shandong Province 266111 Patentee before: BOMBARDIER SIFANG (QINGDAO) TRANSPORTATION Ltd. |
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