CN103523098B - A kind of automotive floor panel tie-beam assembly - Google Patents
A kind of automotive floor panel tie-beam assembly Download PDFInfo
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- CN103523098B CN103523098B CN201310523225.0A CN201310523225A CN103523098B CN 103523098 B CN103523098 B CN 103523098B CN 201310523225 A CN201310523225 A CN 201310523225A CN 103523098 B CN103523098 B CN 103523098B
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Abstract
The invention discloses a kind of automotive floor panel tie-beam assembly, comprise floor tie-beam body and reinforcement, the front side of floor tie-beam body and front floor welded, the rear side of floor tie-beam body and rear floor welded, the two ends, left and right of floor tie-beam body respectively with the longitudinal beam welding being positioned at front floor and the left and right sides, rear floor, reinforcement is positioned on front side of the tie-beam body of floor, and reinforcement rear end is welded with in the middle part of the tie-beam body of floor, forms a T-type structure; Reinforcement front end and front floor welded.The present invention self stiffness is higher, and solid and reliable with the forward and backward floor welded of vehicle body, better improves body mode, improves torsional stiffness and the intensity of vehicle body, meets the requirement of central collision, better protect the safety of occupant.
Description
Technical field
The present invention relates to automobile body components, be specifically related to a kind of automotive floor panel tie-beam assembly.
Background technology
Automobile front floor, rear floor are the vitals of lower body.Due to the thinner thickness on the forward and backward floor of automobile, the stiffness of himself is more weak, so be provided with floor tie-beam between automobile front floor and automobile rear floor, is connected by floor tie-beam, to improve body stiffness, intensity.Tie-beam entirety in existing floor is in " one " font, and U-shaped in flange of its cross-sectional plane, by the longitudinal beam welding of flange with front floor, rear floor and front floor and both sides, rear floor, plays the effect of the front floor of increase and rear floor strength and rigidity.This floor tie-beam structure is simple, but limited to the contribution strengthening front floor and rear floor strength and rigidity, can not improve torsional stiffness and the mode of vehicle body preferably.Existing floor tie-beam is due to the restriction of structure simultaneously, and floor tie-beam is not considered the mounting arrangements of chassis system part.Along with developing rapidly of current auto-industry, customer is more and more higher to the performance of automobile, functional requirement, therefore needs to improve existing floor tie-beam.
CN202029913U discloses the lap-jointing reinforcement structure of floor " before and after a kind of automobile ", and it comprises front floor, front and back floor connection member, rear floor and chair mounted crossbeam.The elongate member of described front and back floor connection member to be cross-sectional plane be double layers table scalariform, the landing edge on lower floor's step plane and front floor is welded together by two-layer weldering, and the landing edge on upper strata step-shaped top plane and rear floor and chair mounted crossbeam weld welded together by three layers.Although this structure to a certain degree improves the intensity that floor, front and back connects, to the bending stiffness of vehicle body, the performances such as torsional stiffness also serve and to a certain degree improve, meet the requirement of side impact, but when automobile generation central collision, the power transmitted well can not be decomposed transmission to vehicle body both sides by this structure, therefore also needs to improve.
Summary of the invention
The object of this invention is to provide a kind of automotive floor panel tie-beam assembly, it can improve body mode, effectively promotes intensity and the torsional stiffness of vehicle body, when automobile generation head-on crash, well the power transmitted can be decomposed to vehicle body both sides and transmit, improve the safety factor of vehicle.
Automotive floor panel tie-beam assembly of the present invention, comprise floor tie-beam body, the front side of floor tie-beam body and front floor welded, the rear side of floor tie-beam body and rear floor welded, left end and the longitudinal beam welding be positioned on the left of front floor and rear floor of floor tie-beam body, right-hand member and the longitudinal beam welding be positioned on the right side of front floor and rear floor of floor tie-beam body, also comprise reinforcement, described reinforcement is positioned on front side of the tie-beam body of floor, reinforcement rear end is welded with in the middle part of the tie-beam body of floor, forms a T-type structure; Reinforcement front end and front floor welded.
Further, also comprise fuel tank front frame, described fuel tank front frame is the box-like of the equal opening in front end and upper end, and fuel tank front frame is provided with welding edge, and described reinforcement and floor tie-beam body weld with this welding edge respectively.Newly-increased fuel tank front frame is that fuel tank provides an installation support, while make certain contribution for chassis system arrangement of parts space, also make fuel tank attachment point intensity be improved.
Further, described floor tie-beam body cross-section is L-type, comprises horizontal panel and vertical panel; The top of described vertical panel is provided with the first flange bent backward, and floor tie-beam body is by the first flange and rear floor welded; Two ends, tie-beam body left and right, described floor are equipped with the second flange of forward fold; The right-hand member of floor tie-beam body is by the longitudinal beam welding on the right side of the second flange and front floor and rear floor; The left end of floor tie-beam body is by the longitudinal beam welding on the left of the second flange and front floor and rear floor; Described reinforcement rear end upper surface welds with in the middle part of described horizontal panel lower surface; The horizontal panel front being positioned at the reinforcement left and right sides is provided with the 3rd flange of bending downwards, and floor tie-beam body is by the 3rd flange and front floor welded.The floor tie-beam Rigidity and strength of this structure is all higher, enhances the Rigidity and strength of vehicle body.
Further, described reinforcement is large T-shaped in little rear end, front end, and its rear end upper surface welds with in the middle part of horizontal panel lower surface, and the front, rear end being positioned at the left and right sides, reinforcement front end is provided with the 5th flange of bending downwards, 5th flange and described 3rd flange are fitted, and are fixedly connected by welding; The left and right sides of reinforcement front end is equipped with downward kink, and kink rear end and the 5th flange combine as a whole, and are welded with the centre gangway on front floor by kink.Reliably, kink welds with centre gangway, enhances the reliability of reinforcement and front floor welded, further enhancing the Rigidity and strength of vehicle body for the reinforcement of this structure and floor tie-beam body firm welding.
Further, described floor tie-beam body is provided with reinforced rib, and this reinforced rib is L-type, and reinforced rib flat segments is located on described horizontal panel, and the vertical section of reinforced rib is located on described vertical panel.The intensity of floor tie-beam body is added by setting up reinforced rib.
During installation, first reinforcement and floor tie-beam body midway location are carried out match strap, then linked together by the mode of spot welding, form floor and connect fine strain of millet branch unit.Next, fuel tank front frame is connected fine strain of millet branch unit with floor and overlaps, connect by the mode of spot welding equally, form floor and connect fine strain of millet assembly.Floor tie-beam body is by the first flange and rear floor welded, floor connects fine strain of millet body two ends by the second flange and longitudinal beam welding, floor tie-beam body is by the 3rd flange and front floor welded, reinforcement front end is by spot welding and front floor welded, and the kink of both sides, reinforcement front end welds with the centre gangway on front floor.
Automotive floor panel tie-beam assembly of the present invention, because middle part has been fixedly connected with reinforcement on front side of the tie-beam body of floor, has made automotive floor panel tie-beam assembly integral T-shaped, thus has improved the Rigidity and strength of automotive floor panel tie-beam assembly further.Described automotive floor panel tie-beam assembly and the forward and backward floor welded of vehicle body solid and reliable, improve body mode preferably, improve intensity and the torsional stiffness of vehicle body largely.In addition, when automobile occur front hit touch time, the power that vehicle body positive dirction can be transmitted to vehicle body both sides decompose transmit, enhance vehicle body anti-torsion and resistant to bending ability, better protect the safety of occupant.
Accompanying drawing explanation
Fig. 1 is axonometric drawing of the present invention;
Fig. 2 is the axonometric drawing of another angle of the present invention;
Fig. 3 is upward view of the present invention;
Fig. 4 is the axonometric drawing of IFO intermediate fuel oil case front frame of the present invention.
Wherein: 1-floor tie-beam body, 2-reinforcement, 3-fuel tank front frame, 11-horizontal panel, 12-vertical panel, 13-first flange, 14-second flange, 16-the 3rd flange, 17-reinforced rib, 21-the 5th flange, 22-kink, 31-welding edge.
Detailed description of the invention
In order to explain technical scheme of the present invention further, below in conjunction with accompanying drawing, the present invention will be described in detail.
See shown in Fig. 1 to Fig. 4, this automotive floor panel tie-beam assembly, comprises floor tie-beam body 1, reinforcement 2 and fuel tank front frame 3.
Described floor tie-beam body 1 cross-sectional plane is L-type, comprises horizontal panel 11 and vertical panel 12.The top of described vertical panel 12 is provided with the first flange 13 bent backward, and floor tie-beam body 1 is welded with rear floor (not shown) by the first flange 13.The two ends, left and right of floor tie-beam body 1 are equipped with the second flange 14 of forward fold.The left end of floor tie-beam body 1 is welded with the longeron (not shown) on the left of front floor and rear floor by the second flange 14.The right-hand member of floor tie-beam body 1 is welded with the longeron (not shown) on the right side of front floor and rear floor by the second flange 14.Floor tie-beam body 1 is provided with six reinforced ribs 17, and this reinforced rib 17 is in L-type, and reinforced rib flat segments is located on horizontal panel 11, and the vertical section of reinforced rib is located on vertical panel 12.
T-shaped large in little rear end, front end of described reinforcement 2, reinforcement 2 is positioned on front side of floor tie-beam body 1, and reinforcement 2 rear end upper surface welds with in the middle part of described horizontal panel 11 lower surface, and reinforcement front end upper surface welds with front floor (not shown).The front, rear portion being positioned at the left and right sides, reinforcement 2 front end is provided with the 5th flange 21 of bending downwards, and horizontal panel 11 front being positioned at reinforcement 1 left and right sides is provided with the 3rd flange 16 of bending downwards.Floor tie-beam body 1 is welded with front floor (not shown) by the 3rd flange 16.Described 5th flange 21 is fitted with described 3rd flange 16, and is fixedly connected by welding.The left and right sides of reinforcement 2 front end is equipped with the kink 22 of bending downwards, and kink 22 rear end and the 5th flange 21 combine as a whole, and reinforcement 2 is welded with the centre gangway (not shown) on front floor by kink 22.
Described fuel tank front frame 3 is the box-like of the equal opening in front end and upper end, fuel tank front frame 3 is provided with welding edge 31, by welding on rear side of welding edge 31 respectively reinforcement 2 rear end lower surface and vertical panel 12.
Shown in the direction of arrow in Fig. 2, when automobile generation central collision, the power that vehicle body positive dirction can transmit by the present invention decomposes transmission to vehicle body both sides effectively.
Claims (4)
1. an automotive floor panel tie-beam assembly, comprise floor tie-beam body (1), the front side on floor tie-beam body (1) and front floor welded, the rear side on floor tie-beam body (1) and rear floor welded, left end and the longitudinal beam welding be positioned on the left of front floor and rear floor on floor tie-beam body (1), right-hand member and the longitudinal beam welding be positioned on the right side of front floor and rear floor on floor tie-beam body (1), it is characterized in that: also comprise reinforcement (2), described reinforcement (2) is positioned at front side, floor tie-beam body (1), reinforcement (2) rear end is welded with middle part, floor tie-beam body (1), form a T-type structure, reinforcement (2) front end and front floor welded,
Also comprise fuel tank front frame (3), described fuel tank front frame is the box-like of the equal opening in front end and upper end, fuel tank front frame is provided with welding edge (31), described reinforcement (2) and floor tie-beam body (1) are welded with this welding edge (31) respectively.
2. automotive floor panel tie-beam assembly according to claim 1, is characterized in that: described floor tie-beam body (1) cross-sectional plane is L-type, comprises horizontal panel (11) and vertical panel (12); The top of described vertical panel (12) is provided with the first flange (13) bent backward, and floor tie-beam body (1) is by the first flange and rear floor welded; Tie-beam body (1) two ends, left and right, described floor are equipped with second flange (14) of forward fold; The right-hand member on floor tie-beam body (1) is by the longitudinal beam welding on the right side of the second flange (14) and front floor and rear floor; The left end on floor tie-beam body (1) is by the longitudinal beam welding on the left of the second flange (14) and front floor and rear floor; Described reinforcement (2) rear end upper surface welds with in the middle part of described horizontal panel (11) lower surface; The horizontal panel front being positioned at the reinforcement left and right sides is provided with the 3rd flange (16) of bending downwards, and floor tie-beam body (1) is by the 3rd flange and front floor welded.
3. automotive floor panel tie-beam assembly according to claim 2, it is characterized in that: described reinforcement (2) is large T-shaped in little rear end in front end, its rear end upper surface welds with in the middle part of horizontal panel (11) lower surface, the front, rear end being positioned at the left and right sides, reinforcement front end is provided with the 5th flange (21) of bending downwards, 5th flange (21) and described 3rd flange (16) are fitted, and are fixedly connected by welding; The left and right sides of reinforcement (2) front end is equipped with the kink (22) of bending downwards, and kink rear end and the 5th flange (21) combine as a whole, and reinforcement (2) is welded with the centre gangway on front floor by kink (22).
4. automotive floor panel tie-beam assembly according to claim 3, it is characterized in that: described floor tie-beam body (1) is provided with reinforced rib (17), this reinforced rib is L-type, reinforced rib flat segments is located on described horizontal panel (11), and the vertical section of reinforced rib is located on described vertical panel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310523225.0A CN103523098B (en) | 2013-10-30 | 2013-10-30 | A kind of automotive floor panel tie-beam assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310523225.0A CN103523098B (en) | 2013-10-30 | 2013-10-30 | A kind of automotive floor panel tie-beam assembly |
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| Publication Number | Publication Date |
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| CN103523098A CN103523098A (en) | 2014-01-22 |
| CN103523098B true CN103523098B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310523225.0A Active CN103523098B (en) | 2013-10-30 | 2013-10-30 | A kind of automotive floor panel tie-beam assembly |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11597441B2 (en) * | 2018-09-07 | 2023-03-07 | Nippon Steel Corporation | Automobile structural member |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737242B4 (en) * | 1997-08-27 | 2005-02-10 | Adam Opel Ag | Device for stiffening a vehicle body in the area of the rear wheel arch |
| CN201140730Y (en) * | 2007-09-25 | 2008-10-29 | 重庆长安汽车股份有限公司 | Foreplate of autobody rear floor |
| CN201923225U (en) * | 2010-12-30 | 2011-08-10 | 重庆长安汽车股份有限公司 | Rear crossbeam assembly for automotive rear floor |
| DE102011015541A1 (en) * | 2011-03-30 | 2012-10-04 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Floor structure of a motor vehicle body |
| JP5904393B2 (en) * | 2011-05-27 | 2016-04-13 | スズキ株式会社 | Rear seat mounting structure |
| DE102012006528A1 (en) * | 2012-03-29 | 2013-10-02 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Floor structure of a motor vehicle body |
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| CN103523098A (en) | 2014-01-22 |
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