CN201553199U - Connecting structure of automobile front longitudinal beam and front floor longitudinal beam - Google Patents
Connecting structure of automobile front longitudinal beam and front floor longitudinal beam Download PDFInfo
- Publication number
- CN201553199U CN201553199U CN2009202070126U CN200920207012U CN201553199U CN 201553199 U CN201553199 U CN 201553199U CN 2009202070126 U CN2009202070126 U CN 2009202070126U CN 200920207012 U CN200920207012 U CN 200920207012U CN 201553199 U CN201553199 U CN 201553199U
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- groove
- side member
- reinforcement
- front side
- longitudinal beam
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Abstract
The utility model discloses a connecting structure of an automobile front longitudinal beam and a front floor longitudinal beam. The connecting structure comprises the front longitudinal beam, a connecting plate and the front floor longitudinal beam which are sequentially welded; the front portion of a connecting plate reinforcing groove is lapped with the tail portion of the front longitudinal beam; and the rear portion of the connecting plate reinforcing groove is lapped with the groove-shaped front floor longitudinal beam. The connecting structure is characterized in that a root portion reinforcing part is welded inside a groove at the lapping position of the front longitudinal beam and the connecting plate; a groove-shaped floor beam reinforcing part is overlapped on the rear portion of the back of the connecting plate reinforcing groove; the rear portion of the floor beam reinforcing part is lapped with the groove back of the front floor longitudinal beam in overlapping manner; a long-strip shield-shaped floor beam front end reinforcing part is welded on the lateral surface of the tail portion of the front longitudinal beam; and the rear portion of the floor beam front end reinforcing part is welded with the connecting plate reinforcing groove and the lateral wall outside the groove of the front floor longitudinal beam. The connecting structure is capable of enabling the automobile front longitudinal beam and the front floor longitudinal beam to be connected firmly and reliably and improving impact load bearing capacity, and the connecting position can not be fractured and scattered even if the connecting structure bears comparatively large impact load.
Description
Technical field
The utility model relates to automotive body structure, more particularly relates to the connection structure of automobile front side member and preceding longitudinal floor beam.
Background technology
When automobile meets accident when collision, require auto body that good energy-absorbing effect can be arranged, guarantee driver and crew's living space to greatest extent, and the distortion that as far as possible reduces operator's compartment is the most basic requirement.The automobile front side member is positioned at the front portion of car body both sides, it is the major part that makes up cabin and load, bearing the vehicle body longitudinal force and longitudinal force passed to miscellaneous part such as floor, front side member absorb by torsional deflection, in the attenuate shock energy, a part of power also can be delivered to floor bearer.Preceding longitudinal floor beam and front side member are by the welding of connecting panel overlap joint, one side of connecting panel is the strengthening groove that extends along the vehicle body fore-and-aft direction, the notch of strengthening groove makes progress, the front end of connecting panel strengthening groove and front side member afterbody overlap joint, longitudinal floor beam overlap joint before rear end and the flute profile, because the three is by being welded to connect, become weak area in the junction, when withstanding shocks load, fracture easily, out of reach actv. energy-absorbing effect causes the injury to the occupant.
The utility model content
Technical problem to be solved in the utility model is: the connection structure of a kind of automobile front side member and preceding longitudinal floor beam is provided, and it is firm that the automobile front side member is connected with preceding longitudinal floor beam, improves the ability of its load that withstands shocks.
The technical solution of the utility model is as follows: the connection structure of a kind of automobile front side member and preceding longitudinal floor beam, comprise the front side member of welding successively, connecting panel and preceding longitudinal floor beam, one side of described connecting panel is the connecting panel strengthening groove that extends along the vehicle body fore-and-aft direction, its notch upwards, the front portion of connecting panel strengthening groove and front side member afterbody overlap joint, the preceding longitudinal floor beam overlap joint of rear portion and flute profile, its key is, be welded with the root reinforcement in the groove of overlapping part mutually at described front side member and connecting panel, be stacked with the floor bearer reinforcement of flute profile at the rear portion of the described connecting panel strengthening groove groove back of the body, the rear portion of this floor bearer reinforcement and the mutually stacked overlap joint of the groove of the preceding longitudinal floor beam back of the body; Be welded with rectangular hood-shaped floor bearer front end reinforcement in the side of described front side member afterbody, weld mutually with the groove lateral wall of described connecting panel strengthening groove and floor bearer reinforcement at the rear portion of this floor bearer front end reinforcement.
The utility model adds root of weld portion reinforcement and floor bearer reinforcement in the junction of front side member, connecting panel and preceding longitudinal floor beam, and by floor bearer front end reinforcement with floor bearer reinforcement, connecting panel and front side member reinforcement by connection once more, the reinforcement intensity of flute profile and hood-shaped structure is higher, the automobile front side member can be connected securely with preceding longitudinal floor beam, even bear bigger impact load, fracture, defeated and dispersed can not appear yet at connecting portion, thereby make the body bottom section framework effectively absorb impact energy, reduce or avoid injury the occupant.
In order to strengthen the front side member afterbody, make front side member more reliable with being connected of connecting panel, the afterbody of described front side member is and the bending flange of described connecting panel strengthening groove bottom land overlap joint to be welded with lower reinforcing plate on this bending flange, the front portion of described root reinforcement and the welding of this lower reinforcing plate.
For strengthening the root reinforcement, described root reinforcement is a bathtub construction, and the shape of its shape and front side member afterbody and connecting panel overlapping part is suitable.
Further, described floor bearer reinforcement is the step trough that the middle part is pressed with positioning step, its notch outward flanging, this flange and bridge piece welding mutually.The groove inner chamber of the forward and backward side of positioning step varies in size, so that paste suitable mutually with the groove back of the body of connecting panel strengthening groove and preceding longitudinal floor beam.
Further, the cover mouth edge outward flanging of described floor bearer front end reinforcement forms the cover edge, and this cover welds along the binding face with adjacent elements.
Further, for the front portion of longitudinal floor beam before strengthening, the front portion before described flute profile in the longitudinal floor beam groove is welded with the preceding longitudinal floor beam brace panel of flute profile, and the notch of this brace panel is provided with the overlap joint flange, is pressed with Jia Qiang Zhu on cell wall and bottom land.
Further, described root reinforcement, floor bearer reinforcement and floor bearer front end reinforcement are plate stamping spare, and its wall thickness is 2.5～3mm.
The beneficial effects of the utility model are: it is firm that the automobile front side member is connected with preceding longitudinal floor beam, improve its load that withstands shocks with ability, even bear bigger impact load, fracture, defeated and dispersed can not appear in connecting portion yet, thereby make the body bottom section framework effectively absorb impact energy, reduce or avoid injury the occupant.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is among Fig. 2, the front view of root reinforcement.
Fig. 4 is the right elevation of Fig. 3.
Fig. 5 is among Fig. 1, the birds-eye view of floor bearer reinforcement.
Fig. 6 is the F-F cutaway view of Fig. 5.
Fig. 7 is the B-B cutaway view of Fig. 1.
Fig. 8 is the C-C cutaway view of Fig. 1.
Fig. 9 is the D-D cutaway view of Fig. 1.
Figure 10 is the E-E cutaway view of Fig. 1.
Figure 11 is a schematic perspective view of the present utility model.
Figure 12 is that the G of Figure 11 is to view.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2, Figure 11 and shown in Figure 12, the utility model is the connection structure of a kind of automobile front side member and preceding longitudinal floor beam, mainly is made up of front side member 1, connecting panel 2, preceding longitudinal floor beam 3, root reinforcement 4, floor bearer reinforcement 5, floor bearer front end reinforcement 6, lower reinforcing plate 7 and preceding longitudinal floor beam brace panel 8.Wherein front side member 1, connecting panel 2 and preceding longitudinal floor beam 3 overlap welding successively, one side of connecting panel 2 is the connecting panel strengthening groove 2a that extends along the vehicle body fore-and-aft direction, its notch makes progress, the front portion of connecting panel strengthening groove 2a and front side member 1 afterbody overlap joint, the preceding longitudinal floor beam 3 stacked overlap joints of rear portion and flute profile.The bending flange 1a that the afterbody of front side member 1 is and connecting panel strengthening groove 2a bottom land overlaps is welded with lower reinforcing plate 7 (as Fig. 7 and shown in Figure 9) on this bending flange 1a, the front portion of connecting panel strengthening groove 2a is overlapped on the lower reinforcing plate 7.As Fig. 2, Fig. 3, Fig. 4 and shown in Figure 11, be welded with root reinforcement 4 in the groove of overlapping part mutually at front side member 1 and connecting panel 2, root reinforcement 4 is the blanked part of bathtub construction, and thickness of slab is 2.5mm, the suitable welding of shape of it and front side member 1 afterbody and connecting panel 2 overlapping parts.Can see from Fig. 7 and Fig. 8, lower reinforcing plate 7 welding of the front portion of root reinforcement 4 and front side member 1 afterbody, the connecting portion of front side member 1 and connecting panel 2 is reinforced in the rear portion of root reinforcement 4 and connecting panel strengthening groove 2a welding.
As Fig. 1, Figure 10 and shown in Figure 12, be stacked with the floor bearer reinforcement 5 of flute profile at the rear portion of the connecting panel strengthening groove 2a groove back of the body, the front portion of floor bearer reinforcement 5 and connecting panel strengthening groove 2a overlap joint, mutually stacked overlap joint is carried on the back with the groove of preceding longitudinal floor beam 3 in the rear portion, and connecting panel strengthening groove 2a reinforces the connecting portion of floor bearer reinforcement 5 and preceding longitudinal floor beam 3.As Fig. 5, Fig. 6, floor bearer reinforcement 5 is the step troughs by the plate stamping moulding, its middle part is pressed with positioning step 5a, the groove inner chamber of positioning step 5a front side is bigger, and paste suitable mutually with the groove back of the body of connecting panel strengthening groove 2a, because preceding longitudinal floor beam 3 is overlapped in the connecting panel strengthening groove 2a groove, thereby the groove inner chamber of positioning step 5a rear side is less, thereby paste suitable mutually with the groove back of the body of preceding longitudinal floor beam 3.The wall thickness of floor bearer reinforcement 5 is 2.5mm, its notch outward flanging 5b, this flange 5b and bridge piece welding mutually.As Fig. 2 and shown in Figure 11, the front portion for longitudinal floor beam 3 before strengthening in the front groove of plate longeron 3, is welded with the preceding longitudinal floor beam brace panel 8 of flute profile previously, and the notch of this brace panel is provided with overlap joint flange 8a, all is pressed with Jia Qiang Zhu 8b on cell wall and the bottom land.
As Fig. 1, Fig. 2, Fig. 7-9, Figure 11, shown in Figure 12, be welded with rectangular hood-shaped floor bearer front end reinforcement 6 in the side of front side member 1 afterbody, weld mutually with the groove lateral wall of connecting panel strengthening groove 2a and floor bearer reinforcement 5 at the rear portion of this floor bearer front end reinforcement 6, floor bearer front end reinforcement 6 is connected with floor bearer reinforcement 5, connecting panel 2 and front side member 1 simultaneously, and each connecting portion is reinforced once more.Floor bearer front end reinforcement 6 also is a plate stamping spare, and its wall thickness is 2.5mm, and its cover mouthful edge outward flanging forms cover along 6a, and this cover is along the binding face welding of 6a and adjacent elements.As shown in Figure 9, the downside cover of floor bearer front end reinforcement 6 front portions is along 6a, and with the lower reinforcing plate 7 applying welding on the front side member 1 afterbody bending flange 1a, floor bearer front end reinforcement 6 upside cover herein welds (show among the wheel cover figure and draw) mutually along 6a with wheel cover; Fig. 7 shows the leading portion of floor bearer front end reinforcement 6 and root reinforcement 4 junctions, the downside cover of floor bearer front end reinforcement 6 is fitted along the lower reinforcing plate on 6a and the front side member 1 afterbody bending flange 1a 7 and is welded, and the upside cover is along the lateral wall applying welding of 6a and root reinforcement 4; Fig. 8 shows the back segment of floor bearer front end reinforcement 6 and root reinforcement 4 junctions, floor bearer front end reinforcement 6 downside cover herein is along the afterbody welding of 6a and front side member 1, the upside cover then welds with the lateral wall of connecting panel strengthening groove 2a mutually along 6a, is the root reinforcement 4 of overlap joint in connecting panel strengthening groove 2a.
Like this, by of the reinforcement of three reinforcements in each junction, the automobile front side member is just considerably solid and reliable with being connected of preceding longitudinal floor beam, even bear bigger impact load, fracture, defeated and dispersed can not appear yet at connecting portion, thereby make the body bottom section framework effectively absorb impact energy, reduce or avoid injury the occupant.
Claims (7)
1. the connection structure of an automobile front side member and preceding longitudinal floor beam, comprise the front side member (1) of welding successively, connecting panel (2) and preceding longitudinal floor beam (3), one side of described connecting panel (2) is the connecting panel strengthening groove (2a) that extends along the vehicle body fore-and-aft direction, its notch upwards, the front portion of connecting panel strengthening groove (2a) and front side member (1) afterbody overlap joint, preceding longitudinal floor beam (3) overlap joint of rear portion and flute profile, it is characterized in that: be welded with root reinforcement (4) in the groove of overlapping part mutually at described front side member (1) and connecting panel (2), be stacked with the floor bearer reinforcement (5) of flute profile at the rear portion of described connecting panel strengthening groove (2a) the groove back of the body, mutually stacked overlap joint is carried on the back with the groove of preceding longitudinal floor beam (3) in the rear portion of this floor bearer reinforcement (5); Be welded with rectangular hood-shaped floor bearer front end reinforcement (6) in the side of described front side member (1) afterbody, weld mutually with the groove lateral wall of described connecting panel strengthening groove (2a) and floor bearer reinforcement (5) at the rear portion of this floor bearer front end reinforcement (6).
2. the connection structure of automobile front side member according to claim 1 and preceding longitudinal floor beam, it is characterized in that: the afterbody of described front side member (1) is the bending flange (1a) that overlaps with described connecting panel strengthening groove (2a) bottom land, on this bending flange (1a), be welded with lower reinforcing plate (7), the front portion of described root reinforcement (4) and this lower reinforcing plate (7) welding.
3. the connection structure of automobile front side member according to claim 1 and preceding longitudinal floor beam is characterized in that: described root reinforcement (4) is a bathtub construction, and the shape of its shape and front side member (1) afterbody and connecting panel (2) overlapping part is suitable.
4. the connection structure of automobile front side member according to claim 1 and preceding longitudinal floor beam, it is characterized in that: described floor bearer reinforcement (5) is pressed with the step trough of positioning step (5a) for the middle part, its notch outward flanging (5b), this flange (5b) and bridge piece welding mutually.
5. the connection structure of automobile front side member according to claim 1 and preceding longitudinal floor beam is characterized in that: the cover mouth edge outward flanging of described floor bearer front end reinforcement (6) forms cover along (6a), and this cover is along (6a) the binding face welding with adjacent elements.
6. the connection structure of automobile front side member according to claim 1 and preceding longitudinal floor beam, it is characterized in that: the front portion in longitudinal floor beam before described flute profile (3) groove, be welded with the preceding longitudinal floor beam brace panel (8) of flute profile, the notch of this brace panel is provided with overlap joint flange (8a), is pressed with Jia Qiang Zhu (8b) on cell wall and bottom land.
7. the connection structure of automobile front side member according to claim 1 and preceding longitudinal floor beam is characterized in that: described root reinforcement (4), floor bearer reinforcement (5) and floor bearer front end reinforcement (6) are plate stamping spare, and its wall thickness is 2.5～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202070126U CN201553199U (en) | 2009-11-06 | 2009-11-06 | Connecting structure of automobile front longitudinal beam and front floor longitudinal beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202070126U CN201553199U (en) | 2009-11-06 | 2009-11-06 | Connecting structure of automobile front longitudinal beam and front floor longitudinal beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553199U true CN201553199U (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202070126U Expired - Fee Related CN201553199U (en) | 2009-11-06 | 2009-11-06 | Connecting structure of automobile front longitudinal beam and front floor longitudinal beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267490A (en) * | 2011-05-04 | 2011-12-07 | 北京航空航天大学 | Internal-high-pressure-forming-based automobile longitudinal beam and manufacturing method thereof |
| CN101704385B (en) * | 2009-11-06 | 2012-08-22 | 力帆实业(集团)股份有限公司 | Connecting structure of front longitudinal beam and front floor longitudinal beam of automobile |
-
2009
- 2009-11-06 CN CN2009202070126U patent/CN201553199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704385B (en) * | 2009-11-06 | 2012-08-22 | 力帆实业(集团)股份有限公司 | Connecting structure of front longitudinal beam and front floor longitudinal beam of automobile |
| CN102267490A (en) * | 2011-05-04 | 2011-12-07 | 北京航空航天大学 | Internal-high-pressure-forming-based automobile longitudinal beam and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20121106 |