CN210912634U - Doorsill beam - Google Patents
Doorsill beam Download PDFInfo
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- CN210912634U CN210912634U CN201921593897.8U CN201921593897U CN210912634U CN 210912634 U CN210912634 U CN 210912634U CN 201921593897 U CN201921593897 U CN 201921593897U CN 210912634 U CN210912634 U CN 210912634U
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- threshold
- strip
- longitudinal beam
- sill
- shaped structure
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- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000001125 extrusion Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a threshold roof beam, this threshold roof beam includes: the lower longitudinal beam of the threshold and the upper longitudinal beam of the threshold arranged on the lower longitudinal beam of the threshold; the sealing structure comprises a threshold, a side wall outer plate and a sealing strip, wherein a seam allowance formed by extruding the threshold upper longitudinal beam is arranged above the threshold upper longitudinal beam and used for connecting the side wall outer plate, so that the seam allowance and a seam allowance plate of the side wall outer plate form a seam allowance structure used for installing the sealing strip. The longitudinal beam and the seam allowance on the threshold are integrally extruded and formed, only the manufacturing tolerance of a single structure exists, and the clamping tolerance requirement of the sealing strip is met, so that the manufacturing precision of a vehicle is improved; and the welding of both sides has replaced three-layer structure welded structure among the prior art, has simplified the formal structure of tang structure, has improved welding precision and tang position joint tolerance, lightens the weight of roof beam, can also realize the lightweight of vehicle when improving vehicle manufacturing accuracy, reduce cost.
Description
Technical Field
The utility model relates to the field of automotive technology, particularly, relate to a threshold roof beam.
Background
The rocker plate assembly is an important structural safety part for automobiles, plays an important role in bearing load and transmitting load in the front collision and the side collision of the whole automobile, and is an important part structure for the bending rigidity, the torsional rigidity and the opening deformation of the whole automobile of a new energy automobile. A primary load bearing structure for transferring two primary paths of longitudinal forces rearwardly during a frontal impact; the function of bearing lateral force and absorbing energy during the side impact is also very critical. In addition, the fuel performance at the present stage increasingly becomes an important addition item for the performance evaluation of the whole vehicle, and the light weight is used as an important index for improving the fuel performance and is also an important concern item for the design of the vehicle body. The threshold structure is usually welded by the side wall outer plate, the threshold beam inner plate and the threshold beam reinforcing plate which are stamping parts, the stamping seam allowance is formed by welding seam allowances stamped by the three parts, the installation precision required by the door sealing strip is higher, the seam allowance of the existing stamping part is welded by three layers to ensure that the welding precision is poor, and the tolerance does not meet the installation requirement of the sealing strip.
Disclosure of Invention
In view of this, the utility model provides a threshold roof beam aims at solving current stamping workpiece tang and leads to the poor problem of welding precision by the three-layer welding.
The utility model provides a threshold roof beam, this threshold roof beam includes: the lower longitudinal beam of the threshold and the upper longitudinal beam of the threshold arranged on the lower longitudinal beam of the threshold; the sealing structure comprises a threshold, a side wall outer plate and a sealing strip, wherein a seam allowance formed by extruding the threshold upper longitudinal beam is arranged above the threshold upper longitudinal beam and used for connecting the side wall outer plate, so that the seam allowance and a seam allowance plate of the side wall outer plate form a seam allowance structure used for installing the sealing strip.
Further, in the threshold beam, the upper longitudinal beam of the threshold is of an inverted U-shaped structure, so that a hollow cavity is enclosed between the upper longitudinal beam of the threshold and the lower longitudinal beam of the threshold; the seam allowance is a strip-shaped clamping plate and is arranged in the middle of the upper surface of the top edge of the longitudinal beam on the threshold.
Further, in the rocker beam described above, a top edge of the rocker upper side member includes: a support section and a connecting section for supporting the spigot; the connecting section is arranged on one side, close to the first side edge of the upper longitudinal beam of the threshold, of the supporting section, and the connecting section is connected with the supporting section through a curved surface section.
Further, in the rocker beam described above, the rocker side sill includes: a first bar structure and a second bar structure stacked above the first bar structure; the first side edge of the first strip-shaped structure is flush with the third side edge of the second strip-shaped structure, and the width of the first strip-shaped structure is larger than that of the second strip-shaped structure, so that the bottom end of the first side edge of the upper longitudinal beam of the threshold is mounted on the top wall, located outside the second strip-shaped structure, of the first strip-shaped structure.
Further, in the threshold beam, the first strip-shaped structure and/or the second strip-shaped structure are/is an internal hollow structure.
Further, in the threshold beam, a transverse rib is transversely arranged in the first strip-shaped structure and used for reinforcing the side strength of the first strip-shaped structure.
Further, according to the threshold beam, the reinforcing ribs are arranged inside the second strip-shaped structure and used for reinforcing the strength of the second strip-shaped structure.
Further, according to the threshold beam, a groove is formed in one side, close to the first side, of the bottom wall of the first strip-shaped structure, so that the bottom wall of the groove is flush with the bottom wall of the front floor mounted on the first side.
Further, above-mentioned threshold roof beam, the first end of first bar structure with the third end parallel and level of second bar structure sets up, and, the fourth end of second bar structure is provided with the structure of stepping down for stepping down in order to provide the mounting point for B post assembly to B post assembly.
Further, in the threshold beam, the threshold side sill and/or the threshold side sill are/is an aluminum extruded part.
The threshold beam provided by the utility model supports the upper longitudinal beam of the threshold through the lower longitudinal beam of the threshold to ensure the integral strength of the threshold beam, and the upper longitudinal beam and the seam allowance of the threshold are integrally extruded and formed, so that only a single-piece structure manufacturing tolerance exists, and the requirement of the clamping tolerance required by the sealing strip can be met, thereby improving the manufacturing precision of the vehicle; in addition, the threshold beam can be combined into a seam allowance structure only by welding the seam allowance plate on the seam allowance, a three-layer structure welding structure in the prior art is replaced by two-side welding, the form structure of the seam allowance structure is simplified, and the welding precision and the seam allowance position clamping tolerance are improved; with prior art in the tang stamping workpiece form by a plurality of parts concatenation, longeron and tang integral type extrusion can lighten the weight of roof beam to a certain extent on the threshold of this embodiment to can also realize the lightweight of vehicle when improving vehicle manufacturing accuracy, the cost is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a threshold beam according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a longitudinal beam on a rocker provided in an embodiment of the present invention;
fig. 3 is a cross-sectional view of a sill upper stringer according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a sill lower longitudinal beam according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a sill lower stringer according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Refer to fig. 1, it is the structural schematic diagram of the threshold roof beam that the embodiment of the utility model provides. As shown the sill beam comprises: a sill lower longitudinal beam 1 and a sill upper longitudinal beam 2; wherein,
the sill upper side member 2 is provided on the sill lower side member 1. Specifically, the two ends of the sill lower longitudinal beam 1 and the sill upper longitudinal beam 2 are arranged in parallel and level, the sill lower longitudinal beam 1 is located above the sill lower longitudinal beam 1, and the bottom end of the sill lower longitudinal beam 1 is welded and fixed on the sill lower longitudinal beam 1, so that a cavity is formed between the sill lower longitudinal beam 1 and the sill upper longitudinal beam, and further the overall strength of the sill beam is improved. The upper side sill 2 can be of a multi-cavity structure, so that the upper side sill 2 can be supported and welding points of other parts such as a side wall outer plate 3 and a front floor plate 4 can be provided.
A spigot 21 formed by extruding the upper threshold longitudinal beam 2 is arranged above the upper threshold longitudinal beam 2 and is used for connecting the side wall outer plate 3, so that the spigot 21 and a spigot plate 31 of the side wall outer plate 3 form a spigot structure for mounting a sealing strip. Specifically, the seam allowance 21 is provided at a middle portion of the upper surface of the rocker upper side member 2 to facilitate the installation of the weather strip. The seam allowance 21 is formed by extruding the sill upper side member 2 itself, that is, the sill upper side member 2 and the seam allowance 21 are integrally extruded. In specific implementation, the sill upper side member 2 and the seam allowance 21 can be made of aluminum alloy, and the manufacturing process is an integral extrusion forming process. The sill lower longitudinal beam 1 can be made of aluminum alloy, and the manufacturing process is extrusion molding.
Compared with the prior art, the threshold beam in the embodiment supports the upper threshold longitudinal beam 2 through the lower threshold longitudinal beam 1 to ensure the integral strength of the threshold beam, and the upper threshold longitudinal beam 2 and the seam allowance 21 are integrally extruded and formed, so that only a single-piece structure manufacturing tolerance exists, the clamping tolerance requirement required by the sealing strip can be met, and the manufacturing precision of a vehicle is improved; in addition, the threshold beam can be combined into a seam allowance structure only by welding the seam allowance 21 with the seam allowance plate 31, a three-layer structure welding structure in the prior art is replaced by two-side welding, the form structure of the seam allowance structure is simplified, and the welding precision and the seam allowance position clamping tolerance are improved; compared with the prior art in which the spigot stamping part is formed by splicing a plurality of parts, the integrated extrusion forming of the upper longitudinal beam 2 and the spigot 21 of the threshold of the embodiment can reduce the weight of the beam to a certain extent, thereby improving the manufacturing precision of the vehicle and realizing the light weight of the vehicle and reducing the cost.
Referring to fig. 2 and 3, there are shown schematic structural views of the side sill upper side member provided in the present embodiment. As shown in the figure, the upper side sill 2 of the threshold may be an inverted U-shaped structure, so that a hollow cavity is enclosed between the upper side sill 2 and the lower side sill 1 of the threshold, thereby ensuring the strength of the threshold. Specifically, the inverted U-shaped structure is welded on the sill lower longitudinal beam 1 through side edge abutting pressure so as to enclose a hollow cavity.
The seam allowance 21 is a strip-shaped clamping plate which is arranged in the middle of the upper surface of the top edge 22 of the sill upper longitudinal beam 2 so as to facilitate the installation of the sealing strip. Specifically, the seam allowance 21 is vertically provided at a middle position of an upper surface of a top edge 22 of the side sill 2 on the rocker.
In the above embodiment, the top edge 22 of the rocker upper side member 2 includes the support section 221 and the connecting section 222 for supporting the seam allowance 21; the connecting section 22 is disposed on one side (right side as viewed in fig. 3) of the support section 21 close to the first side edge 23 of the rocker upper side member 2, and the connecting section 222 may be connected to the support section 221 by a curved section 223. Specifically, the supporting section 221 is a flat plate structure horizontally disposed to support the seam allowance 21; the seam allowance 21 may be provided on an upper surface of the support section 221. The connecting section 222 is an inclined plate structure, so that the top end (relative to the position shown in fig. 1) of the first side edge 23 of the upper threshold longitudinal beam 2 is lower than the top end of the second side edge 24 of the upper threshold longitudinal beam 2, and further the side wall outer plate 3 arranged on the left side of the upper threshold longitudinal beam 2 is abducted, so as to avoid interference between the first side edge and the second side edge, and simultaneously, the height of the first side edge 23 can be reduced, and the bottom end of the first side edge 23 is ensured to be arranged on the top wall of the lower threshold longitudinal beam 1, wherein the first strip-shaped structure 11 is externally arranged. The supporting section 221 and the connecting section 222 are connected by a curved plate 223 to avoid stress concentration at the connecting position of the supporting section 221 and the connecting section 222, and the overall height of the connecting section 222 is lower than that of the supporting section 221.
Referring to fig. 4 and 5, there are shown structural schematic views of the rocker side sill provided in the present embodiment. As shown in the drawing, the rocker side sill 1 includes: a first bar structure 11 and a second bar structure 12; wherein,
the second bar structures 12 are stacked above the first bar structures 11. Specifically, the first bar structure 11 and the second bar structure 12 are connected to each other in an overlapping manner and share a part of the top edge of the first bar structure 11, so as to form a step-like bar structure. To ensure the strength of the sill lower 1, it is preferable that the first end (the upper right end as shown in fig. 4) of the first bar structure 11 and the third end (the upper right end as shown in fig. 4) of the second bar structure 12 are flush with each other, and the fourth end (the lower left end as shown in fig. 4) of the second bar structure 12 is provided with a yielding structure 121 for yielding a B-pillar assembly (not shown) to provide a mounting point for the B-pillar assembly. The first bar-shaped structure 11 is provided with a plurality of mounting holes corresponding to the abdicating structure 121 for mounting the B-pillar assembly.
The third side 111 of the first bar 11 is arranged flush with the fifth side 122 of the second bar 12 and the width of the first bar 11 (with respect to the horizontal direction in fig. 5) is greater than the width of the second bar 12, i.e. the fourth side 112 of the first bar 11 is located to the left of the sixth side 123 of the second bar 12, so that the bottom end of the first side 23 of the sill upper stringer 2 is mounted on the top wall of the first bar 11 located outside the second bar 12. Specifically, the width (relative to the horizontal direction shown in fig. 5) of the first bar structure 11 is greater than the width of the second bar structure 12, and the third side 111 of the first bar structure 11 is flush with the fifth side 122 of the second bar structure 12, so that the fourth side 112 of the first bar structure 11 is located on the left side of the sixth side 123 of the second bar structure 12, so that the left side of the second bar structure 12 is left, so that the bottom end of the first side 23 of the sill upper longitudinal beam 2 is welded to the top wall of the first bar structure 11, and the second side 24 of the sill upper longitudinal beam 2 can be pressed against and welded to the outer side wall of the fifth side 122 of the second bar structure 12, so as to fix the sill upper longitudinal beam 2. Furthermore, the third side 111 is flush with the fifth side 122, and a mounting point of the front floor 4 can be provided to achieve mounting and fixing of the front floor 4. Wherein, the first bar-shaped structure 11 and/or the second bar-shaped structure 12 can be hollow inside to realize the light weight design of the automobile. In order to enhance the strength of the first bar structure 11, a transverse rib 113 is transversely disposed inside the first bar structure 11 to reinforce the side strength of the first bar structure 11, so as to enhance the strength of the threshold beam assembly and reduce the intrusion of a side collision. In order to improve the strength of the second bar structures 12, it is preferable that the second bar structures 12 are provided with reinforcing ribs 124 inside to reinforce the strength of the second bar structures 12; it is further preferred that the reinforcing ribs 124 are vertically provided in the second bar structure 12 to provide support strength to the upper vehicle body.
In the above embodiment, the seam allowance plate 31 of the side body outer panel 3 is welded on the seam allowance 21, and the lower end of the side body outer panel 3 can be welded on the fourth side 112 of the first bar-shaped structure 11; the front floor 4 may be welded to the third side plate 111 of the first bar-shaped structure 11, and in order to improve the connection stability of the front floor 4 and the third side plate 111, it is preferable that a side of the bottom wall of the first bar-shaped structure 11 close to the third side 111 (the right side as viewed in fig. 5) is provided with a groove 114 so that the bottom wall of the groove 114 is flush with the bottom wall of the front floor 4 mounted to the third side 111, that is, the bottom wall of the groove 114 is on the same level with the bottom wall of the front floor 4.
In summary, in the rocker beam provided by the embodiment, the upper rocker 2 is supported by the lower rocker 1 to ensure the overall strength of the rocker beam, and the upper rocker 2 and the seam allowance 21 are integrally extruded, so that only a single-piece structure manufacturing tolerance exists, which is enough to meet the clamping tolerance requirement of the sealing strip, thereby improving the manufacturing precision of the vehicle; in addition, the threshold beam can be combined into a seam allowance structure only by welding the seam allowance 21 with the seam allowance plate 31, a three-layer structure welding structure in the prior art is replaced by two-side welding, the form structure of the seam allowance structure is simplified, and the welding precision and the seam allowance position clamping tolerance are improved; compared with the prior art in which the spigot stamping part is formed by splicing a plurality of parts, the integrated extrusion forming of the upper longitudinal beam 2 and the spigot 21 of the threshold of the embodiment can reduce the weight of the beam to a certain extent, thereby improving the manufacturing precision of the vehicle and realizing the light weight of the vehicle and reducing the cost.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A threshold beam, comprising: the structure comprises a sill lower longitudinal beam (1) and a sill upper longitudinal beam (2) arranged on the sill lower longitudinal beam (1); wherein,
and a seam allowance (21) formed by extruding the upper threshold longitudinal beam (2) is arranged above the upper threshold longitudinal beam (2) and is used for connecting the side wall outer plate (3), so that the seam allowance (21) and a seam allowance plate (31) of the side wall outer plate (3) form a seam allowance structure for installing a sealing strip.
2. Threshold beam according to claim 1,
the upper threshold longitudinal beam (2) is of an inverted U-shaped structure, so that a hollow cavity is enclosed between the upper threshold longitudinal beam (2) and the lower threshold longitudinal beam (1);
the seam allowance (21) is a strip-shaped clamping plate and is arranged in the middle of the upper surface of the top edge (22) of the upper longitudinal beam (2) of the threshold.
3. Threshold sill according to claim 2, characterized in that the top edge (22) of the upper threshold sill stringer (2) comprises: a support section (221) and a connection section (222) to support the spigot (21); wherein,
the connecting section (222) is arranged on one side, close to the first side edge (23) of the upper side sill (2), of the supporting section (221), and the connecting section (222) is connected with the supporting section (221) through a curved section (223).
4. Sill beam according to any of claims 1 to 3, characterized in that the sill stringer (1) comprises: a first bar-shaped structure (11) and a second bar-shaped structure (12) superposed above the first bar-shaped structure (11); wherein,
the third side edge (111) of the first strip-shaped structure (11) and the fifth side edge (122) of the second strip-shaped structure (12) are arranged in a flush mode, and the width of the first strip-shaped structure (11) is larger than that of the second strip-shaped structure (12), so that the bottom end of the first side edge (23) of the upper side beam (2) of the doorsill is arranged on the top wall, located outside the second strip-shaped structure (12), of the first strip-shaped structure (11).
5. Sill beam according to claim 4, characterized in that the first and/or the second strip structure (11, 12) is an internal hollow structure.
6. Threshold beam according to claim 5,
and transverse ribs (113) are transversely arranged in the first strip-shaped structure (11) and used for reinforcing the side strength of the first strip-shaped structure (11).
7. Threshold beam according to claim 5,
and reinforcing ribs (124) are arranged in the second strip-shaped structure (12) and used for reinforcing the strength of the second strip-shaped structure (12).
8. Threshold beam according to claim 4,
a groove (114) is arranged on one side, close to the third side (111), of the bottom wall of the first strip-shaped structure (11), so that the bottom wall of the groove (114) is flush with the bottom wall of the front floor (4) mounted to the third side (111).
9. Threshold beam according to claim 4,
the first end of first bar structure (11) with the third end parallel and level of second bar structure (12) set up, and, the fourth end of second bar structure (12) is provided with abdicating structure (121) for abdicating the B post assembly in order to provide the mounting point for the B post assembly.
10. The rocker beam according to any of claims 1 to 3, characterised in that the sill pillar (1) and/or the sill pillar (1) is/are an extruded aluminium profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921593897.8U CN210912634U (en) | 2019-09-24 | 2019-09-24 | Doorsill beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921593897.8U CN210912634U (en) | 2019-09-24 | 2019-09-24 | Doorsill beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210912634U true CN210912634U (en) | 2020-07-03 |
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ID=71360286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921593897.8U Active CN210912634U (en) | 2019-09-24 | 2019-09-24 | Doorsill beam |
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| Country | Link |
|---|---|
| CN (1) | CN210912634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257935A (en) * | 2022-08-12 | 2022-11-01 | 浙江吉利控股集团有限公司 | Side wall plate assembly and vehicle |
-
2019
- 2019-09-24 CN CN201921593897.8U patent/CN210912634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257935A (en) * | 2022-08-12 | 2022-11-01 | 浙江吉利控股集团有限公司 | Side wall plate assembly and vehicle |
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