CN206358229U - A kind of Varying-thickness automobile rear floor sill assembly structure - Google Patents
A kind of Varying-thickness automobile rear floor sill assembly structure Download PDFInfo
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- CN206358229U CN206358229U CN201621291424.9U CN201621291424U CN206358229U CN 206358229 U CN206358229 U CN 206358229U CN 201621291424 U CN201621291424 U CN 201621291424U CN 206358229 U CN206358229 U CN 206358229U
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Abstract
A kind of Varying-thickness automobile rear floor sill assembly structure, including rear floor sill, rear floor sill reinforcing plate, constitute a cavity body structure；The two ends of floor sill and its reinforcing plate are connected respectively at vehicle doorsill girder afterwards；Wherein, rear floor sill be metal thin-wall structure, successively including rear left section of floor sill, left changeover portion, stage casing, right changeover portion, right section；Left and right section of floor sill, the thickness in stage casing are equal thickness afterwards, and the thickness in thickness floor sill stage casing compared with after of rear left and right section of floor sill is big；The thickness of left and right changeover portion is continuous variable thickness；Afterwards floor sill reinforcing plate be metal thin-wall structure, successively including rear left section of floor sill reinforcing plate, left changeover portion, stage casing, right changeover portion, right section；Left and right section of floor sill reinforcing plate, the thickness in stage casing are equal thickness afterwards, and the thickness of rear left and right section of floor sill reinforcing plate is big compared with the thickness in stage casing；The thickness of left and right changeover portion is continuous variable thickness.
Description
Technical field
The utility model belongs to technical field of automobile design, more particularly to a kind of Varying-thickness automobile rear floor sill assembly
Structure.
Background technology
Automobile rear floor sill is welded in an anterior small assembly structure of automobile rear floor, is to automobile rear floor
The reinforcement of assembly, can lift white body torsional rigidity, while also during automobile side impact, resistance side is deformed, and is subtracted
Few side intrusion volume.
Current automobile rear floor sill generally carries out Cold Press Working using the plate of not Varying-thickness and is made, due to using
The Sheet Metal Processing of overall not Varying-thickness into structure can not preferably meet after floor performance requirement, it is general using two kinds of means pair
It is strengthened.
A kind of is that the integral thickness of rear floor sill part is increased, come the rigidity of floor assembly after being lifted and by force
Degree, thus can cause the increase of body of a motor car total quality, it is impossible to meet current automobile vendor more and more tighter to automotive light weight technology
The requirement of lattice.
Another is to be provided at both ends with reinforcing plate, or by being added at two ends using the larger connecting plate of thickness
By force, although the rear floor sill of this form can preferably strengthen after floor assembly rigidity and intensity, structure is complex,
Number of parts needs increase, and further mold, punching press and welding cost are higher.
The structure of above form reaches the optimal of structure design and material use on mechanics, it is impossible to realize structure
Simplify and material is rationally utilized, and by floor Lower Crossbeam Structure after the Varying-thickness in this programme, by using Varying-thickness point
Cloth structure, reaches the optimal light weight effect of structure.
Floor sill after a kind of vehicle disclosed in Chinese patent notification number 203766902U, by under the floor after vehicle
Cavity is formed in crossbeam, and reinforcing plate is set in the sill of floor after vehicle, the floor sill quality after vehicle is not increased
On the premise of, vehicle sill strength and stiffness are effectively increased, improve the side impact performance of vehicle.
It is to use multiple equal thickness structure weldings together in published automobile rear floor Lower Crossbeam Structure above, strengthens
Number of packages amount is more, complex process, and additional processing cost is higher.
According to patent retrieval, the correlation of floor sill assembly after being made using continuous variable thickness material is not yet found at present
Patent report.
The content of the invention
The purpose of this utility model is to design sill assembly structure in floor after a kind of Varying-thickness, by under rear floor
The two ends joint location of crossbeam and its reinforcing plate carries out local thickness's increase, lifts the stiffness of automobile rear floor assembly structure,
And realize light-weight design.Automobile rear floor sill is made by the continuous variable thickness sheet material being made by flexible rolling technology
And its reinforcer, thus sill assembly structure diverse location in vehicle body transverse direction in floor possesses different thickness distributions afterwards, can
To meet the requirement of automobile side impact well.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：
Sill assembly structure in floor after a kind of Varying-thickness, including rear floor sill, rear floor sill reinforcing plate, group
Into a cavity body structure；The two ends of floor sill and its reinforcing plate are connected respectively at vehicle doorsill girder afterwards；Wherein, after described
Floor sill and rear floor sill reinforcing plate use the continuous variable thickness steel plate changed successively from centre to two ends, wherein,
The rear floor sill be metal thin-wall structure, successively including rear left section of floor sill, the rear left changeover portion of floor sill,
Floor sill stage casing, the rear right changeover portion of floor sill, right section of rear floor sill afterwards；Wherein, rear floor sill is left and right
Section, the thickness in stage casing are equal thickness, and the thickness in thickness floor sill stage casing compared with after of rear left and right section of floor sill is big；Left,
The thickness of right changeover portion is continuous variable thickness；The rear floor sill reinforcing plate is metal thin-wall structure, successively including afterwards
Under left section of plate sill reinforcing plate, the rear left changeover portion of floor sill reinforcing plate, rear floor sill reinforcing plate stage casing, rear floor
The right changeover portion of cross member reinforcing plate, right section of rear floor sill reinforcing plate；Wherein, rear left section of floor sill reinforcing plate, right section, in
The thickness of section is equal thickness, the relatively rear floor sill reinforcing plate stage casing of thickness of rear left section, right section of floor sill reinforcing plate
Thickness is big；The thickness of left and right changeover portion is continuous variable thickness.
It is preferred that, the housing depth of the cavity medium position of the rear floor sill assembly structure formation is 80-
100mm, the housing depth at two ends gradually increases, and its height is 100-140mm, and the width of cavity is 30-50mm.
It is preferred that, the thickness of rear left and right section of the floor sill is 1.5-3.0mm；The thickness in floor sill stage casing afterwards
Spend for 0.8-1.5mm；The thickness of left and right section of the rear floor sill reinforcing plate is 1.5-3.0mm；Floor sill is strengthened afterwards
The thickness in plate stage casing is 0.8-1.5mm.
It is preferred that, the thickness change gradient of the left and right changeover portion of the rear floor sill and its reinforcing plate is in 1:50
~1:Between 200, i.e., thickness often changes 1mm, and left and right transition section length is 50mm~200mm.
It is preferred that, the rear floor sill and its reinforcing plate are connected by spot welding, rear floor sill and its reinforcing plate
Weldering connection is protected by spot welding or two with sill strip.
The ability of the counter-bending torsion of floor sill assembly is related to assembly cross sectional shape and thickness afterwards, its area of section
And thickness is bigger, the ability of the counter-bending torsion of structure is stronger, therefore, the utility model Varying-thickness automobile rear floor sill assembly
In addition to lifting area of section by structural cavity body, also by local increase two ends and the thickness of sill strip connecting portion, enter
One step improves assembly bending resistance, while being also beneficial to the lifting of Side-impact safety.
Floor sill and rear floor sill reinforcing plate use what is changed successively from centre to two ends after the utility model
Continuous variable thickness steel plate.
Floor Lower Crossbeam Structure is from section after the utility model, and its section housing depth formed is less than rear floor
The height of sill, is 80-100mm in rear floor sill medium position housing depth, the housing depth at two ends gradually increases,
Its height is 100-140mm, so as to effectively improve intensity and rigidity of the rear floor Lower Crossbeam Structure in both sides；To ensure that cavity has
Enough rigidity, the width of section cavity is 30-50mm.
Floor sill and rear floor sill reinforcing plate may be designed to three equal thickness sections and two continuous thickness mistakes afterwards
Cross the structure type of section, i.e. two ends using larger thickness equal thickness section, centre using relatively small thickness equal thickness section, three it
Between have the changeover portions of two thickness consecutive variations.
Thus, rear floor sill and rear floor sill reinforcing plate just can be according to thickness different designs in different zones
Floor Lower Crossbeam Structure is from both ends to the middle on flexural strength from by force to weak change after realization.
In order to realize the Varying-thickness structure of the design, the utility model is to realize by flexible rolling process, i.e.,
Using the coiled strip of an equal thickness, produce to obtain by flexible rolling and rolled up along the continuous variable thickness that rolling direction there are different thicknesss of slab
Material, the metal blank in the different-thickness region with design is obtained by blanking, afterwards by techniques such as drop stamping or cold stampings,
The metalwork with different-thickness region is obtained respectively.
The beneficial effects of the utility model：
The walled thickness of floor Lower Crossbeam Structure meets body of a motor car from centre to two ends progressive additive after the utility model
Requirement of the stiffness and strength to rear floor sill assembly, lifts torsional bending rigidity, while by being conducive to Side-impact safety
Raising.Using preceding floor Lower Crossbeam Structure of the present utility model, by using Varying-thickness blank design, in the same of improving performance
When, structural member quantity can be effectively reduced, the maximum utilization of material is realized, reaches structure lightened effect, reduce part and exist
Integrated cost in terms of processing, welding.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the sectional view of the utility model embodiment.
Fig. 3 is the structural representation of floor sill after the utility model embodiment.
Fig. 4 is the structural representation of floor sill reinforcing plate after the utility model embodiment.
Fig. 5 is the structural representation of the utility model embodiment sheet thickness transitional region.
Embodiment
Referring to Fig. 1~Fig. 5, floor sill assembly structure after a kind of Varying-thickness of the present utility model, including under rear floor
Crossbeam 1, rear floor sill reinforcing plate 2, constitute a cavity body structure；The two ends of floor sill 1 and its reinforcing plate 2 are distinguished afterwards
It is connected in vehicle doorsill girder；The rear floor sill and rear floor sill reinforcing plate are used to be become successively from centre to two ends
The continuous variable thickness steel plate of change, wherein,
The rear floor sill 1 is metal thin-wall structure, successively including horizontal under left section 11 of rear floor sill, rear floor
The left changeover portion 12 of beam, rear floor sill stage casing 13, the right changeover portion 14 of rear floor sill, right section 15 of rear floor sill；Its
In, left and right section 11 of rear floor sill, 15, the thickness in stage casing 13 are equal thickness, the thickness that left and right section 11,15 of rear floor sill
The thickness for spending the floor sill stage casing 13 compared with after is big；The thickness of left and right changeover portion 12,14 is continuous variable thickness；
The rear floor sill reinforcing plate 2 is metal thin-wall structure, successively including rear left section of floor sill reinforcing plate
21st, the left changeover portion 22 of rear floor sill reinforcing plate, rear floor sill reinforcing plate stage casing 23, rear floor sill reinforcing plate are right
Right section 25 of changeover portion 24, rear floor sill reinforcing plate；Wherein, rear left section of floor sill reinforcing plate, right section 21,25, stage casing
23 thickness is equal thickness, rear left section of floor sill reinforcing plate, right section 21,25 of thickness relatively after in floor sill reinforcing plate
The thickness of section 23 is big；The thickness of left and right changeover portion 22,24 is continuous variable thickness.
It is preferred that, the housing depth of the cavity medium position of the rear floor sill assembly structure formation is 80-
100mm, the housing depth at two ends gradually increases, and its height is 100-140mm, and the width of cavity is 30-50mm.
It is preferred that, the thickness of rear left and right section of the floor sill is 1.5-3.0mm；The thickness in floor sill stage casing afterwards
Spend for 0.8-1.5mm；The thickness of left and right section of the rear floor sill reinforcing plate is 1.5-3.0mm；Floor sill is strengthened afterwards
The thickness in plate stage casing is 0.8-1.5mm.
It is preferred that, the thickness change gradient of the left and right changeover portion of the rear floor sill and its reinforcing plate is in 1:50
~1:Between 200, i.e., thickness often changes 1mm, and left and right transition section length is respectively 50mm~200mm.
It is preferred that, the rear floor sill and its reinforcing plate are connected by spot welding, rear floor sill and its reinforcing plate
Weldering connection is protected by spot welding or two with sill strip.
Fig. 2 show the middle section schematic diagram of floor Lower Crossbeam Structure after the utility model example.It is visible in figure, by rear
The cavity body structure of floor sill 1 and rear floor sill reinforcing plate 2 composition, can effectively lift the anti-of front longitudinal rear end structure
Flexural property.
Floor Lower Crossbeam Structure is from section afterwards, and its section housing depth formed is less than the height of rear floor sill
Degree, is 80-100mm in rear floor sill medium position housing depth, the housing depth at two ends gradually increases, and its height is
100-140mm, so as to effectively improve intensity and rigidity of the rear floor Lower Crossbeam Structure in both sides；To ensure that it is enough firm that cavity has
Property, the width of section cavity is 30-50mm.
The utility model uses continuous variable thickness sheet metal, for making a kind of automobile rear floor sill and its reinforcement
Plate, made rear floor sill and its reinforcing plate have different thickness in vehicle body transverse design, and the program passes through to two ends
Partial thickening is carried out with body sill joint connected position, component assembly loss of weight is reached and reduces the mesh of structural reinforcement member quantity
, traditional structure strengthened scheme is overcome the shortcomings of very well, while light-weight design is realized, can lift automobile torsional rigidity
And Side-impact safety, meet automotive technology development requirement.
In order to realize the Varying-thickness structure of the design, the utility model is to realize by flexible rolling process, i.e.,
Using the coiled strip of an equal thickness, produce to obtain by flexible rolling and rolled up along the continuous variable thickness that rolling direction there are different thicknesss of slab
Material, the metal blank in the different-thickness region with design is obtained by blanking, afterwards by techniques such as drop stamping or cold stampings,
The metalwork with different-thickness region is obtained respectively.The thickness schematic diagram in the longitudinally cutting face of plate is as shown in Figure 5.
Automotive safety turns into the important trend of development of automobile with lightweight.Floor front cross beam structure is rear after Varying-thickness
The different parts of plate front beam are designed with different-thickness, and are made using by the continuous variable thickness plate of flexible rolling.
The utility model Varying-thickness structure can not only meet requirement of the vehicle body to torsional bending rigidity well, can also subtract to the full extent
Few materials'use, can realize light-weight design on the premise of security is ensured.
The method that the utility model realizes Varying-thickness Element Design and making using thickening plate combination Automobile Design requirement,
It can also continue in the design for other vehicle key structural members, such as motor vehicle seat cross-member, A posts.
Claims (6)
1. sill assembly structure in floor after a kind of Varying-thickness, including rear floor sill, rear floor sill reinforcing plate, composition
One cavity body structure；The two ends of floor sill and its reinforcing plate are connected respectively at vehicle doorsill girder afterwards；Characterized in that, institute
State rear floor sill and rear floor sill reinforcing plate uses the continuous variable thickness steel plate changed successively from centre to two ends, its
In,
The rear floor sill is metal thin-wall structure, successively including rear left section of floor sill, the rear left mistake of floor sill
Cross section, rear floor sill stage casing, the rear right changeover portion of floor sill, right section of rear floor sill；Wherein, rear floor sill
Left and right section, the thickness in stage casing be equal thickness, the thickness of rear left and right section of floor sill relatively after floor sill stage casing thickness
Greatly；The thickness of left and right changeover portion is continuous variable thickness；
The rear floor sill reinforcing plate be metal thin-wall structure, successively including rear left section of floor sill reinforcing plate, afterwards
The left changeover portion of plate sill reinforcing plate, rear floor sill reinforcing plate stage casing, the rear right changeover portion of floor sill reinforcing plate, afterwards
Right section of plate sill reinforcing plate；Wherein, rear left section of floor sill reinforcing plate, right section, the thickness in stage casing be equal thickness, rear floor
The thickness in the thickness that left section, right section of sill reinforcing plate floor sill reinforcing plate stage casing compared with after is big；The thickness of left and right changeover portion
For continuous variable thickness.
2. sill assembly structure in floor after Varying-thickness as claimed in claim 1, it is characterised in that the rear floor sill
The housing depth of the cavity medium position of assembly structure formation is 80-100mm, and the housing depth at two ends gradually increases, its height
For 100-140mm, the width of cavity is 30-50mm.
3. sill assembly structure in floor after Varying-thickness as claimed in claim 1, it is characterised in that the rear floor sill
Left and right section of thickness is 1.5-3.0mm；The thickness in floor sill stage casing is 0.8-1.5mm afterwards；The rear floor sill adds
The thickness of strong left and right section of plate is 1.5-3.0mm；The thickness in floor sill reinforcing plate stage casing is 0.8-1.5mm afterwards.
4. sill assembly structure in floor after the Varying-thickness as described in claim 1 or 3, it is characterised in that under the rear floor
The thickness change gradient of crossbeam and its left and right changeover portion of reinforcing plate is in 1:50~1:Between 200, i.e. thickness change 1mm,
The length of left and right changeover portion is respectively 50mm~200mm.
5. sill assembly structure in floor after the Varying-thickness as described in claim 1 or 3, it is characterised in that under the rear floor
Crossbeam and its reinforcing plate are connected by spot welding, and rear floor sill and its reinforcing plate and sill strip are protected weldering by spot welding or two and connected
Connect.
6. sill assembly structure in floor after Varying-thickness as claimed in claim 4, it is characterised in that the rear floor sill
And its reinforcing plate is connected by spot welding, rear floor sill and its reinforcing plate and sill strip protect weldering connection by spot welding or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291424.9U CN206358229U (en) | 2016-11-29 | 2016-11-29 | A kind of Varying-thickness automobile rear floor sill assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291424.9U CN206358229U (en) | 2016-11-29 | 2016-11-29 | A kind of Varying-thickness automobile rear floor sill assembly structure |
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| Publication Number | Publication Date |
|---|---|
| CN206358229U true CN206358229U (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291424.9U Active CN206358229U (en) | 2016-11-29 | 2016-11-29 | A kind of Varying-thickness automobile rear floor sill assembly structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482643A (en) * | 2018-10-29 | 2019-03-19 | 上海宝钢包装钢带有限公司 | The milling method of 11 sections of Varying-thickness automobile rear floor front beam |
| CN111483526A (en) * | 2019-07-10 | 2020-08-04 | 长城汽车股份有限公司 | Vehicle body structure |
-
2016
- 2016-11-29 CN CN201621291424.9U patent/CN206358229U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482643A (en) * | 2018-10-29 | 2019-03-19 | 上海宝钢包装钢带有限公司 | The milling method of 11 sections of Varying-thickness automobile rear floor front beam |
| CN111483526A (en) * | 2019-07-10 | 2020-08-04 | 长城汽车股份有限公司 | Vehicle body structure |
| CN111483526B (en) * | 2019-07-10 | 2021-09-07 | 长城汽车股份有限公司 | Vehicle body structure |
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