CN104228949B - A kind of variable cross-section box-shaped longitudinal beam of segmentation welding - Google Patents
A kind of variable cross-section box-shaped longitudinal beam of segmentation welding Download PDFInfo
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- CN104228949B CN104228949B CN201410413635.4A CN201410413635A CN104228949B CN 104228949 B CN104228949 B CN 104228949B CN 201410413635 A CN201410413635 A CN 201410413635A CN 104228949 B CN104228949 B CN 104228949B
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Abstract
The invention discloses the variable cross-section box-shaped longitudinal beam of a kind of segmentation welding, including front longitudinal assembly, middle longeron assembly, three sections of box-shaped longerons of floor side member assembly.Every section of box-shaped longeron assembly is welded to form by inside and outside two panels grooved sheet, and front longitudinal internal sheet one end stretches out and forms front reinforcement arm, and the alar part overlap welding of front reinforcement arm and middle longeron outer plate front end forms bushing Welding Structure；Floor side member internal sheet one end stretches out reinforcement arm after formation grooved, and the alar part overlap welding of the upper and lower end face of rear reinforcement arm and middle longeron outer plate rear end forms bushing Welding Structure；Between front longitudinal assembly and middle longeron assembly, between middle longeron assembly and floor side member assembly, inside and outside two blocks of shroudings are all adopted to add strong weld, junction is formed 3 layers of reinforcement structure by reinforcement arm and inside and outside shrouding, improve rigidity and the intensity of longeron, it is adaptable to the longeron length offroad vehicle more than 4 meters needs.
Description
Technical field
The present invention relates to technical field of automobile parts, in particular to the variable cross-section box-shaped longitudinal beam that a kind of segmentation is welded.
Background technology
High-performance offroad vehicle need to possess and stronger passes through performance, require that car load has the bigger road clearance, the manipulation of car load, ride comfort, safeties simultaneously etc. require again to control car load height of center of mass, so high-performance offroad vehicle is in order to take into account by property and car load height, longitudinal beam often adopts the variable section structure that middle low front and back are high.It addition, offroad vehicle usually travels on mountain area, without bad working environments such as roads, it is desirable to vehicle frame and longeron have enough strength and stiffness, and box-shaped longeron compares " work " shape and groove-shaped longitudinal beam, and section factor is bigger, and bending resistance and anti-twisting property are higher.So, high-performance offroad vehicle often adopts the box-shaped longitudinal beam structure of variable cross-section, but the variable cross-section longeron often mould of large scale (length is more than 4 meters) puts into height, and Sheet Metal Forming Technology is complicated, punching press springback capacity is difficult to control to cause that dimensional accuracy is relatively difficult to ensure card etc., does not reach market demand.
Summary of the invention
Present invention aim to solve the deficiency of above-mentioned background technology, it is provided that the variable cross-section box-shaped longitudinal beam of a kind of segmentation welding.
The technical scheme is that the variable cross-section box-shaped longitudinal beam that a kind of segmentation is welded, it is characterised in that: including front longitudinal assembly, middle longeron assembly, floor side member assembly, described wherein middle longeron assembly width is less than front longitudinal assembly and floor side member assembly width；
Described front longitudinal assembly is formed by the alar part overlap welding of the alar part of grooved front longitudinal outer plate Yu grooved front longitudinal internal sheet, makes front longitudinal always be shaped as box structure；
Described middle longeron assembly is formed with the alar part overlap welding of longeron internal sheet in grooved by the alar part of longeron outer plate in grooved, makes middle longeron always be shaped as box structure；
Described floor side member assembly is formed by the alar part overlap welding of the alar part of grooved floor side member outer plate Yu grooved floor side member internal sheet, makes floor side member always be shaped as box structure；
Described front longitudinal internal sheet one end stretches out and forms front reinforcement arm, the alar part overlap welding of the upper and lower end face of front reinforcement arm and middle longeron outer plate front end；
Described floor side member internal sheet one end stretches out reinforcement arm after formation grooved, the alar part overlap welding of the upper and lower end face of rear reinforcement arm and middle longeron outer plate rear end；
Also including front reinforcement shrouding and rear reinforcement shrouding, front reinforcement shrouding is outer before including grooved strengthens strengthening in before shrouding and grooved shrouding, rear strengthen outer reinforcement after shrouding includes grooved and strengthens shrouding in after shrouding and grooved,
Front longitudinal outer plate is connected fixing with middle longeron outer plate by front outer reinforcement shrouding, and front longitudinal internal sheet is connected fixing with middle longeron internal sheet by front interior reinforcement shrouding,
Floor side member outer plate is connected fixing with middle longeron outer plate by rear outer reinforcement shrouding, and floor side member internal sheet is connected fixing with middle longeron internal sheet by rear interior reinforcement shrouding,
The rear end of described front longitudinal assembly bends downwards extension, and the front end of described floor side member assembly bends downwards extension.
Preferably, the abdominal part strengthening shrouding two ends in before described welds with the abdominal part of front longitudinal internal sheet, middle longeron internal sheet respectively, and the front alar part at outer reinforcement shrouding two ends welds with the alar part of front longitudinal outer plate, middle longeron outer plate.
Further, before described, the outer abdominal part strengthening shrouding welds with the abdominal part of front longitudinal outer plate, middle longeron outer plate, and the alar part of front outer reinforcement shrouding welds with the alar part of front interior reinforcement shrouding.
Preferably, the abdominal part strengthening shrouding in after described welds with the abdominal part of middle longeron internal sheet, floor side member internal sheet, and the alar part strengthening shrouding in rear welds with the alar part of middle longeron outer plate, floor side member outer plate.
Further, after described, the outer abdominal part strengthening shrouding welds with the abdominal part of middle longeron outer plate, floor side member outer plate, and the rear outer alar part strengthening shrouding welds with the alar part of rear interior reinforcement shrouding.
The present invention is by front longitudinal assembly, middle longeron assembly, three sections of box-shaped longerons of floor side member assembly form by strengthening seal plate welding, wherein middle longeron assembly cross-sectional height is less than front longitudinal assembly and floor side member assembly cross-sectional height, the rear end of front longitudinal assembly bends downwards extension, the front end of floor side member assembly bends downwards extension, front longitudinal assembly, the bending end of floor side member assembly is connected the box-shaped longitudinal beam forming variable cross-section respectively with middle longeron assembly two ends, the front longitudinal assembly of bending, floor side member assembly reserves wheel space, make middle longeron assembly overhead closer to, reduce the center of gravity of car, increase the manipulation of car load, ride comfort, safety.Every section of box-shaped longeron assembly is welded to form by inside and outside two panels grooved sheet, it it is abdominal part bottom grooved sheet, the two ends vertical with bottom are alar part, and front longitudinal internal sheet one end stretches out and forms front reinforcement arm, and the alar part overlap welding of front reinforcement arm and middle longeron outer plate front end forms bushing Welding Structure；Floor side member internal sheet one end stretches out reinforcement arm after formation grooved, and the alar part overlap welding of the upper and lower end face of rear reinforcement arm and middle longeron outer plate rear end forms bushing Welding Structure；Between front longitudinal assembly and middle longeron assembly, all adopting inside and outside two blocks of shroudings to add strong weld between middle longeron assembly and floor side member assembly, junction is formed 3 layers of reinforcement structure by reinforcement arm and inside and outside shrouding, improves rigidity and the intensity of longeron.
The bushing welding of outer plate and inside and outside shrouding in adjacent two sections of longerons is adopted to add the two-stage welding procedure of strong weld between the present invention each box-shaped longeron assembly, each longeron assembly junction forms 3 layers of reinforcement structure, it is greatly improved rigidity and the intensity of longeron, and reduce mould and put into the requirement with welding procedure, the welding precision requirement of longeron assembly just can be met, it is adaptable to the longeron length offroad vehicle more than 4 meters needs by better simply assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the variable cross-section box-shaped longitudinal beam of a kind of segmentation welding
Fig. 2 is front longitudinal assembly structure schematic diagram
Fig. 3 is middle longeron assembly structure schematic diagram
Fig. 4 is floor side member assembly structure schematic diagram
Fig. 5 is front reinforcement arm structural representation
Fig. 6 is rear reinforcement arm structural representation
Fig. 7 is front reinforcement closing plate structure schematic diagram
Fig. 8 is rear reinforcement closing plate structure schematic diagram
Fig. 9 is Fig. 7 middle section A-A structural representation
Figure 10 is Fig. 8 middle section B-B structural representation
Wherein: 1. before front longitudinal outer plate 2. front longitudinal internal sheet 3., outer strengthen strengthening in before shrouding 4. in shrouding 5. in longeron outer plate 6. outer after longeron internal sheet 7. strengthens strengthening in after shrouding 8. before shrouding 9. floor side member outer plate 10. floor side member internal sheet 21. reinforcement arm after reinforcement arm 101..
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As it is shown in figure 1, the present invention include front longitudinal assembly, middle longeron assembly, floor side member assembly, front reinforcement shrouding and after strengthen shrouding.As in figure 2 it is shown, front longitudinal assembly is formed by the alar part overlap welding of the alar part of grooved front longitudinal outer plate 1 Yu grooved front longitudinal internal sheet 2, the alar part of front longitudinal internal sheet 2 is between two alar parts of front longitudinal outer plate 1；As it is shown on figure 3, middle longeron assembly is formed with the alar part overlap welding of longeron internal sheet 6 in grooved by the alar part of longeron outer plate 5 in grooved, the alar part of middle longeron internal sheet 6 is between two alar parts of middle longeron outer plate 5；As shown in Figure 4, floor side member assembly is formed by the alar part overlap welding of the alar part of grooved floor side member outer plate 9 Yu grooved floor side member internal sheet 10, and the alar part of floor side member internal sheet 10 is between two alar parts of floor side member outer plate 9；The back segment of front longitudinal outer plate 1 and front longitudinal internal sheet 2 bends downwards extension, and the leading portion of floor side member outer plate 9 and floor side member internal sheet 10 bends downwards extension.
Reinforcement arm 21, the alar part overlap welding of the upper and lower end face of front reinforcement arm 21 and middle longeron outer plate 5 front end before formation as it is shown in figure 5, front longitudinal internal sheet 2 one end stretches out；
As shown in Figure 6, floor side member internal sheet 10 one end stretches out reinforcement arm 101 after formation grooved, the alar part overlap welding of the upper and lower end face of rear reinforcement arm 101 and middle longeron outer plate 5 rear end；
As shown in Figure 7, front reinforcement shrouding is outer before including grooved strengthens reinforcement shrouding 4 in before shrouding 3 and grooved, shrouding 4 is strengthened in front longitudinal internal sheet 2, middle longeron internal sheet 6 side in front, the abdominal part strengthening shrouding 4 two ends in front welds with the abdominal part of front longitudinal internal sheet 2, middle longeron internal sheet 6 respectively, and alar part welds with the alar part of front longitudinal outer plate 1, middle longeron outer plate 5.Front outer shrouding 3 of strengthening is in longeron outer plate 1, middle longeron outer plate 5 side, and the abdominal part of front outer reinforcement shrouding 3 welds with the abdominal part of front longitudinal outer plate 1, middle longeron outer plate 5, and alar part welds with the alar part of front interior reinforcement shrouding 4.
As shown in Figure 8, rear reinforcement shrouding is outer after including grooved strengthens reinforcement shrouding 8 in after shrouding 7 and grooved, shrouding 8 is strengthened in middle longeron internal sheet 6, floor side member internal sheet 10 side in rear, the abdominal part strengthening shrouding 8 in rear welds with the abdominal part of middle longeron internal sheet 6, floor side member internal sheet 10, and alar part welds with the alar part of middle longeron outer plate 5, floor side member outer plate 9.Rear outer shrouding 7 of strengthening is in middle longeron outer plate 5, floor side member outer plate 9 side, and the rear outer abdominal part strengthening shrouding 7 welds with the abdominal part of middle longeron outer plate 5, floor side member outer plate 9, and alar part welds with the alar part of rear interior reinforcement shrouding 6.
As shown in Figure 9 and Figure 10, between front longitudinal assembly, middle longeron assembly, coupling part does not only have in before front outer reinforcement shrouding 3 and grooved and strengthens shrouding 4, and also the front reinforcement arm 21 of front longitudinal internal sheet 2, forms 3 layers of attachment structure；Between middle longeron assembly, floor side member assembly, coupling part does not only have in after rear outer reinforcement shrouding 7 and grooved and strengthens shrouding 8, and also the front reinforcement arm 101 of floor side member internal sheet 10, forms 3 layers of attachment structure.
The welding procedure of the present invention is: first front longitudinal outer plate 1 front longitudinal internal sheet 2 overlap welding is formed front longitudinal assembly；Middle longeron outer plate 5 forms middle longeron assembly with the overlap welding of middle longeron internal sheet 6；Floor side member outer plate 9 forms floor side member assembly with floor side member internal sheet 10 overlap welding；By the front reinforcement arm 21 of front longitudinal internal sheet 2 and middle longeron outer plate 5 front end overlap welding, reinforcement arm 101 and the middle longeron outer plate 5 rear end overlap welding of floor side member internal sheet 10；Weld successively in order again in before grooved and strengthen shrouding 4, front outer reinforcement shrouding 3, afterwards interior reinforcement shrouding 8, rear outer reinforcement shrouding 7, namely obtain variable cross-section box-shaped longitudinal beam.
Claims (5)
1. the variable cross-section box-shaped longitudinal beam of a segmentation welding, it is characterised in that: include front longitudinal assembly, middle longeron assembly, floor side member assembly；
Described front longitudinal assembly is formed by the alar part overlap welding of the alar part of grooved front longitudinal outer plate (1) Yu grooved front longitudinal internal sheet (2)；
Described middle longeron assembly is formed with the alar part overlap welding of longeron internal sheet (6) in grooved by the alar part of longeron outer plate (5) in grooved；
Described floor side member assembly is formed by the alar part overlap welding of the alar part of grooved floor side member outer plate (9) Yu grooved floor side member internal sheet (10)；
Described front longitudinal internal sheet (2) one end stretches out and forms front reinforcement arm (21), the alar part overlap welding of the upper and lower end face of front reinforcement arm (21) and middle longeron outer plate (5) front end；
Described floor side member internal sheet (10) one end stretches out reinforcement arm (101) after formation grooved, the alar part overlap welding of the upper and lower end face of rear reinforcement arm (101) and middle longeron outer plate (5) rear end；
Also include front reinforcement shrouding and rear reinforcement shrouding, front reinforcement shrouding is outer before including grooved strengthens reinforcement shrouding (4) in before shrouding (3) and grooved, rear reinforcement shrouding is outer after including grooved strengthens reinforcement shrouding (8) in after shrouding (7) and grooved
Front longitudinal outer plate (1) is connected fixing with middle longeron outer plate (5) by front outer reinforcement shrouding (3), front longitudinal internal sheet (2) is connected fixing with middle longeron internal sheet (6) by front interior reinforcement shrouding (4)
Floor side member outer plate (9) is connected fixing with middle longeron outer plate (5) by rear outer reinforcement shrouding (7), floor side member internal sheet (10) is connected fixing with middle longeron internal sheet (6) by rear interior reinforcement shrouding (8)
The rear end of described front longitudinal assembly bends downwards extension, and the front end of described floor side member assembly bends downwards extension.
2. the variable cross-section box-shaped longitudinal beam of a kind of segmentation as claimed in claim 1 welding, it is characterized in that: the abdominal part strengthening shrouding (4) two ends in before described welds with the abdominal part of front longitudinal internal sheet (2), middle longeron internal sheet (6) respectively, and the front outer alar part at reinforcement shrouding (4) two ends welds with the alar part of front longitudinal outer plate (1), middle longeron outer plate (5).
3. the variable cross-section box-shaped longitudinal beam of a kind of segmentation as claimed in claim 2 welding, it is characterized in that: before described, the abdominal part of the outer abdominal part and front longitudinal outer plate (1), middle longeron outer plate (5) strengthening shrouding (3) welds, and the alar part of front outer reinforcement shrouding (3) welds with the alar part of front interior reinforcement shrouding (4).
4. the variable cross-section box-shaped longitudinal beam of a kind of segmentation as claimed in claim 1 welding, it is characterized in that: the abdominal part strengthening shrouding (8) in after described welds with the abdominal part of middle longeron internal sheet (6), floor side member internal sheet (10), the alar part strengthening shrouding (8) in rear welds with the alar part of middle longeron outer plate (5), floor side member outer plate (9).
5. the variable cross-section box-shaped longitudinal beam of a kind of segmentation as claimed in claim 4 welding, it is characterized in that: after described, the abdominal part of the outer abdominal part and middle longeron outer plate (5), floor side member outer plate (9) strengthening shrouding (7) welds, the alar part of the rear outer alar part and rear interior reinforcement shrouding (6) strengthening shrouding (7) welds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413635.4A CN104228949B (en) | 2014-08-20 | 2014-08-20 | A kind of variable cross-section box-shaped longitudinal beam of segmentation welding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410413635.4A CN104228949B (en) | 2014-08-20 | 2014-08-20 | A kind of variable cross-section box-shaped longitudinal beam of segmentation welding |
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| CN104228949A CN104228949A (en) | 2014-12-24 |
| CN104228949B true CN104228949B (en) | 2016-06-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106185743B (en) * | 2016-08-31 | 2019-01-08 | 徐工集团工程机械有限公司 | Telescopic arm structure and bridge inspection vehicle |
| CN107651019A (en) * | 2017-10-24 | 2018-02-02 | 苏州紫荆清远新能源汽车技术有限公司 | A kind of floor side member and vehicle body |
| CN110116756A (en) * | 2019-05-15 | 2019-08-13 | 重庆立研汽车技术有限公司 | A kind of Hydrogen Energy power supply and accumulation power supply chassis |
| CN110126919A (en) * | 2019-05-15 | 2019-08-16 | 重庆立研汽车技术有限公司 | A kind of pure Hydrogen Energy power supply chassis installation method and its structure |
| CN115071823B (en) * | 2022-06-28 | 2024-05-03 | 一汽解放汽车有限公司 | Frame assembly and vehicle with same |
| CN115092255B (en) * | 2022-06-28 | 2024-05-03 | 一汽解放汽车有限公司 | Frame assembly |
| CN115929748A (en) * | 2022-10-31 | 2023-04-07 | 苏州奥杰汽车工业有限公司 | High-rigidity transfer casting for longitudinal beam of frame |
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| CN201254214Y (en) * | 2008-08-08 | 2009-06-10 | 中国第一汽车集团公司 | Subsection welding type vehicle frame stringer |
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| CN102079334A (en) * | 2010-12-21 | 2011-06-01 | 江铃汽车股份有限公司 | Splitting frame longitudinal beam |
| KR20110060502A (en) * | 2009-11-30 | 2011-06-08 | 현대자동차주식회사 | Under body structure for fuel cell electric vehicle |
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Patent Citations (4)
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| CN101565057A (en) * | 2008-04-24 | 2009-10-28 | 本特勒尔汽车技术有限公司 | Motor vehicle frame |
| CN201254214Y (en) * | 2008-08-08 | 2009-06-10 | 中国第一汽车集团公司 | Subsection welding type vehicle frame stringer |
| KR20110060502A (en) * | 2009-11-30 | 2011-06-08 | 현대자동차주식회사 | Under body structure for fuel cell electric vehicle |
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