CN111891230A - Connecting structure of vehicle body B column and lower vehicle body threshold beam - Google Patents
Connecting structure of vehicle body B column and lower vehicle body threshold beam Download PDFInfo
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- CN111891230A CN111891230A CN202010705786.2A CN202010705786A CN111891230A CN 111891230 A CN111891230 A CN 111891230A CN 202010705786 A CN202010705786 A CN 202010705786A CN 111891230 A CN111891230 A CN 111891230A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
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Abstract
The invention discloses a connecting structure of a B-pillar of a vehicle body and a lower vehicle body doorsill beam, which comprises a B-pillar outer plate, a B-pillar reinforcing plate, a B-pillar inner sealing plate and a doorsill beam, wherein a lower connecting plate is positioned at the lower side of a main plate body, a bending extension plate is arranged at the lower side of the connecting plate, the B-pillar reinforcing plate is fixed at the inner side of the B-pillar outer plate, the B-pillar inner sealing plate comprises an upper sealing plate and a lower sealing plate which are connected up and down, the upper sealing plate is arranged at the upper part of the inner side of the B-pillar reinforcing plate, the lower sealing plate is arranged at the lower part of the inner side of the B-pillar reinforcing plate, the plate body edges of the upper sealing plate and the lower sealing plate are fixedly connected with the edges of the B-pillar outer plate and the B-pillar reinforcing plate, the. The connection structure of automobile body B post and lower automobile body threshold roof beam has very high bending resistance antitorque ability, has improved the side and has bumped the performance, and the lightweight has also been realized to the material selection mode simultaneously, does not increase the cost, and the practicality is high.
Description
Technical Field
The invention relates to a connecting structure of a B column of an automobile body and a threshold beam of a lower automobile body, and relates to the technical field of automobile part assembly.
Background
The importance of weight reduction is emphasized as well as safety, and at the beginning of structural design, both of these two indexes need to be implemented into structural design of a vehicle body with the aim of safety and weight reduction. Taking the connection of the B column and the lower vehicle body as an example, the connection structure of the B column and the lower vehicle body at present is very difficult to meet the performance requirements of safety and light weight because the connection of the inner plate and the outer plate of the B column and the doorsill is generally designed to be connected by a single row of points, and the phenomenon of direct breakage from the connection points occurs in a collision test, so that the side collision requirements cannot be met.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the connecting structure of the B pillar of the vehicle body and the lower vehicle body threshold beam is simple in assembly process, high in safety and capable of meeting the light-weight design requirement.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a connecting structure of a B-pillar of a vehicle body and a doorsill beam of a lower vehicle body comprises a B-pillar outer plate, a B-pillar reinforcing plate, a B-pillar inner sealing plate and the doorsill beam, the B-pillar outer plate is designed into a plate body structure which is formed by integrally forming a main plate body and a lower connecting plate, the lower connecting plate is positioned at the lower side of the main plate body, a bending extension plate is arranged at the lower side of the connecting plate, the structure of the B-column reinforcing plate is the same as that of the B-column outer plate and is fixed at the inner side of the B-column outer plate, the B-pillar inner sealing plate comprises an upper sealing plate and a lower sealing plate which are connected up and down, the upper sealing plate is arranged at the upper part of the inner side of the B-pillar reinforcing plate, the lower sealing plate is arranged at the lower part of the inner side of the B-pillar reinforcing plate, the edges of the upper sealing plate and the lower sealing plate are fixedly connected with the edges of the B-pillar outer plate and the B-pillar reinforcing plate, the lower connecting plate, the bending extension plate and the outer side panel of the sill beam are fixedly connected, and the lower end of the lower sealing plate is fixedly connected with the top panel of the sill beam.
Preferably, the outer side surface of the threshold beam is provided with two step-shaped bending surfaces, the plate body where the vertical surfaces of the two bending surfaces are located is an outer fixing plate, and the vertical plates of the lower connecting plate and the bending extension plate are respectively connected and fixed with the upper outer fixing plate and the lower outer fixing plate.
Preferably, the vertical plates of the lower connecting plate and the bending extension plate are respectively connected with the upper outer fixing plate and the lower outer fixing plate in an FDS hot-melting self-tapping connection mode.
Preferably, the two side edges of the main plate body, the upper sealing plate and the lower sealing plate of the B-column outer plate and the B-column reinforcing plate are provided with bent plates, and the bent plates at the two side edges of the main plate body, the upper sealing plate and the lower sealing plate of the B-column outer plate and the B-column reinforcing plate are connected by SPR self-piercing riveting.
Preferably, the upper sealing plate and the lower sealing plate are riveted and fixed by a self-plugging rivet.
Preferably, the inner side face of the threshold beam is provided with a 90-degree bending supporting plate, a plate body in the upper horizontal direction of the bending supporting plate is a top fixing plate, the lower end of the lower sealing plate is provided with a horizontal bending plate, and the horizontal bending plate and the top fixing plate are riveted and fixed through blind rivets.
Preferably, the B-pillar outer plate body is connected with the main plate body of the B-pillar reinforcing plate through spot welding.
Preferably, the top of the threshold beam is provided with a vertical top connecting plate, and the side bending plates on two sides of the main plate body of the B-column outer plate and the B-column reinforcing plate extend horizontally and are fixedly connected with the top connecting plate.
Compared with the prior art, the invention has the advantages that: the connection structure of automobile body B post and lower car body threshold roof beam, each assembly passes through the tight location of frock clamp, adopt FDS, SPR, self-plugging rivet's connected mode is accomplished and is connected, connect the completion back, automobile body B post and lower car body threshold roof beam have formed big cavity at the junction site, therefore have very high bending resistance antitorque ability, the side collision performance has been improved, the lightweight has also been realized to the material selection mode simultaneously, therefore need not increase the part, do not influence current connection technology, and the cost is not increased, do not influence the connection and the assembly of other assembly simultaneously yet, simple process is feasible, and the practicality is high.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a rear side viewing angle of the present invention;
FIG. 3 is a right side view of the present invention;
FIG. 4 is a perspective view of the present invention without the B-pillar inner closure plate installed;
FIG. 5 is a side partial cross-sectional view showing the attachment of the bent extension plate and the inner bent extension plate to the lower side of the B-pillar outer panel and the B-pillar reinforcing panel according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention:
as shown in fig. 1 to 4, a connection structure of a car body B-pillar and a lower car body sill beam is a connection component on a car frame body, and comprises a B-pillar outer panel 1, a B-pillar reinforcing panel 2, a B-pillar inner sealing panel and a sill beam 3, wherein the B-pillar outer panel 1, the B-pillar reinforcing panel 2, the B-pillar inner sealing panel and the sill beam 3 are all existing car component structures, wherein the B-pillar reinforcing panel is made of a high-strength steel plate, the B-pillar outer panel is made of an aluminum plate, the B-pillar sealing panel is made of an aluminum plate, and the sill is made of an aluminum profile, so that the whole structure meets the requirement of light weight performance and has high structural stability.
The B-column outer plate is designed into a plate structure integrally formed by a main plate body 101 and a lower connecting plate 102, wherein the main plate body is of a plate structure with a bulge in the middle, the B-column outer plate is integrally in an inverted T shape, one side with the bulge facing is the outer side surface of the integral connecting structure, the other side is the inner side of the integral connecting structure, the lower connecting plate 102 is positioned at the lower side of the main plate body, a bending extension plate 103 is arranged at the lower side of the connecting plate, the bending plate is a one-time bending plate and is of an integral forming structure with the lower connecting plate, as shown in figure 5, the bending extension plate is provided with a vertical plate parallel to the lower connecting plate, the vertical plate is provided with a connecting and fixing plate 1033, the B-column reinforcing plate has the same structure as the B-column outer plate and is fixed at the inner side of the B-column outer plate, in order to improve the structural stability between the B-column outer plate and the main plate, the B-column outer plate and the main plate reinforcing, the connecting fixing plate is also provided, in the existing doorsill beam structure, two step-shaped bending surfaces are arranged on the outer side surface of the existing doorsill beam structure, the plate body where the vertical surfaces of the two bending surfaces are located is the outer fixing plate 301, in order to enable the B-pillar outer plate and the B-pillar reinforcing plate to be connected and fastened with the doorsill beam, the B-pillar outer plate, the lower connecting plate 102 and the connecting fixing plate at the lower part of the B-pillar reinforcing plate are respectively connected and fixed with the two outer fixing plates 301 on the doorsill beam through an FDS hot melting self-tapping connection mode, and the FDS connecting points 4 are arranged in a plurality of straight lines, so that two rows of FDS connecting points which are parallel up and down are formed at the joint of.
The B post inner seal board includes upper seal board 5 and lower seal board 6 of connecting from top to bottom, and the inboard upper portion of B post reinforcing plate is placed in to the upper seal board, and the inboard lower part of B post reinforcing plate is placed in to lower shrouding, and the plate body edge of upper seal board and lower shrouding is connected fixedly between the edge of B post planking, B post reinforcing plate, in this embodiment, for improving and connect the steadiness, convenient assembly, the both sides edge of the main plate body of B post planking and B post reinforcing plate, upper seal board, lower shrouding all is equipped with board 7 of bending, all adopt SPR self-piercing riveted mode to connect between the board of bending of the main plate body of B post reinforcing plate, upper seal board, the both sides edge of lower shrouding.
In addition, in this embodiment, for improving the connection steadiness, adopt self-plugging rivet riveting fixed between upper sealing plate and the lower sealing plate.
In this embodiment, the medial surface of threshold roof beam has 90 degrees backup pad 8 of bending, and the plate body of the upper portion horizontal direction of establishing the backup pad of bending is top fixed plate 801, the lower extreme of shrouding has the level board 601 of bending down, adopt self-plugging rivet 9 riveting fixed between level board and the top fixed plate 801 of bending down.
In this embodiment, a vertical top connecting plate 10 is provided at the top of the rocker beam, and the side bending plates at both sides of the main plate body of the B-pillar outer panel and the B-pillar reinforcing plate extend horizontally and are connected and fixed with the top connecting plate.
Therefore, in the actual installation process, firstly, the B-column outer plate and the B-column reinforcing plate are assembled, the B-column outer plate and the B-column reinforcing plate are positioned and clamped by using a fixture, the two are connected into an assembly structure by spot welding, then the connected assembly structure, the upper sealing plate and other side wall structures are assembled into a side wall assembly structure in an SPR (surface plasma resonance) connection mode, the lower sealing plate is assembled and connected with a sill beam, the assembly structure is positioned and clamped by using the fixture, the connected assembly structure and other assembly structures of the lower vehicle body are assembled into a lower vehicle body assembly by using self-plugging rivets, finally the side wall assembly structure and the lower vehicle body assembly are assembled together, the side wall assembly structure is positioned and clamped by using the fixture, and the side wall assembly structure is connected by using FDS (fully drawn wire) connection and self-plugging rivets, so as to complete the connection and assembly process, in the process, the upper sealing plate, lower shrouding, threshold roof beam assemble in the lower automobile body in advance, when side wall assembly structure is assembled with the lower automobile body, two rows of FDS tie points are arranged with the overlap joint position of the downside of B post planking, B post reinforcing plate to threshold roof beam, one row of self-plugging rivet is arranged to upper and lower shrouding overlap joint position, improve overall structure's steadiness, connect the back of accomplishing, automobile body B post and lower automobile body threshold roof beam have formed big cavity at the joint position, have very high bending resistance antitorque ability, can improve and improve the side and bump the performance.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a connection structure of automobile body B post and lower automobile body threshold roof beam which characterized in that: the B-pillar outer plate is of a plate body structure integrally formed by a main plate body and a lower connecting plate, the lower connecting plate is located on the lower side of the main plate body, a bending extension plate is arranged on the lower side of the connecting plate, the structure of the B-pillar reinforcement plate is the same as that of the B-pillar outer plate and is fixed on the inner side of the B-pillar outer plate, the B-pillar inner sealing plate comprises an upper sealing plate and a lower sealing plate which are connected up and down, the upper sealing plate is arranged on the upper portion of the inner side of the B-pillar reinforcement plate, the lower sealing plate is arranged on the lower portion of the inner side of the B-pillar reinforcement plate, the plate body edges of the upper sealing plate and the lower sealing plate are fixedly connected with the edges of the B-pillar outer plate and the B-pillar reinforcement plate, the lower connecting plate, the bending extension plate and the outer side panel of the sill beam are fixedly connected, and.
2. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 1, wherein: the outer side face of the threshold beam is provided with two step-shaped bending faces, a plate body where vertical faces of the two bending faces are located is an outer fixing plate, and the lower connecting plate and the vertical plate of the bending extension plate are respectively connected and fixed with the upper outer fixing plate and the lower outer fixing plate.
3. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 2, wherein: the vertical plates of the lower connecting plate and the bending extension plate are connected with the upper outer fixing plate and the lower outer fixing plate respectively in an FDS hot-melting self-tapping connection mode.
4. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 1, wherein: the main plate body of B post planking and B post reinforcing plate, go up the shrouding, the both sides edge of lower shrouding all is equipped with the board of bending, all adopt SPR self-piercing riveting's mode to connect between the board of bending of the main plate body of B post planking and B post reinforcing plate, the both sides edge of going up shrouding, lower shrouding.
5. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 1, wherein: and the upper sealing plate and the lower sealing plate are riveted and fixed by a self-plugging rivet.
6. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 1, wherein: the inner side surface of the threshold beam is provided with a 90-degree bending supporting plate, a plate body in the upper horizontal direction of the bending supporting plate is a top fixing plate, the lower end of the lower sealing plate is provided with a horizontal bending plate, and the horizontal bending plate and the top fixing plate are riveted and fixed through blind rivets.
7. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 1, wherein: and the B-column outer plate body is connected with the main plate body of the B-column reinforcing plate in a spot welding manner.
8. A connecting structure of a B-pillar of a vehicle body and a rocker beam of a lower vehicle body according to claim 1, wherein: the top of the threshold beam is provided with a vertical top connecting plate, and the side bending plates on the two sides of the main plate body of the B-column outer plate and the B-column reinforcing plate extend horizontally and are fixedly connected with the top connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705786.2A CN111891230A (en) | 2020-07-21 | 2020-07-21 | Connecting structure of vehicle body B column and lower vehicle body threshold beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705786.2A CN111891230A (en) | 2020-07-21 | 2020-07-21 | Connecting structure of vehicle body B column and lower vehicle body threshold beam |
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| Publication Number | Publication Date |
|---|---|
| CN111891230A true CN111891230A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010705786.2A Pending CN111891230A (en) | 2020-07-21 | 2020-07-21 | Connecting structure of vehicle body B column and lower vehicle body threshold beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706842A (en) * | 2021-02-04 | 2021-04-27 | 的卢技术有限公司 | Automobile A column lower part die casting structure |
| CN113602364A (en) * | 2021-07-28 | 2021-11-05 | 岚图汽车科技有限公司 | Threshold longeron, electric automobile body frame and electric automobile |
-
2020
- 2020-07-21 CN CN202010705786.2A patent/CN111891230A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706842A (en) * | 2021-02-04 | 2021-04-27 | 的卢技术有限公司 | Automobile A column lower part die casting structure |
| CN112706842B (en) * | 2021-02-04 | 2021-12-28 | 的卢技术有限公司 | Automobile A column lower part die casting structure |
| CN113602364A (en) * | 2021-07-28 | 2021-11-05 | 岚图汽车科技有限公司 | Threshold longeron, electric automobile body frame and electric automobile |
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