CN215284995U

CN215284995U - Front wall plate reinforcing structure

Info

Publication number: CN215284995U
Application number: CN202120645043.0U
Authority: CN
Inventors: 马天航; 黄涌; 潘汉钦
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-12-24
Anticipated expiration: 2031-03-30

Abstract

The utility model provides a front wall plate reinforcing structure, which comprises a front wall plate, a front wall reinforcing plate and a cabin longitudinal beam rear section which are welded and fixed with each other from top to bottom in sequence, wherein the front wall plate is provided with a first welding plug hole; still including setting up on preceding bounding wall, being located the sealant layer that first welding consent top. The front wall reinforcing plate is arranged between the front wall plate and the rear section of the cabin longitudinal beam, the assembly precision is improved, the welding quality between adjacent parts is improved, the front wall plate is arranged on the inner side of the passenger cabin on the premise that the collision performance is not sacrificed, and the sealing glue layer is arranged on the front wall plate, so that the problem of water leakage of the welding plug hole of the front wall plate can be effectively solved.

Description

Front wall plate reinforcing structure

Technical Field

The utility model belongs to the technical field of the automobile body technique and specifically relates to a dash board additional strengthening is related to.

Background

The dash panel of an automobile is the primary bulkhead between the engine compartment and the passenger compartment. In order to improve the collision performance of the vehicle, a reinforcing plate needs to be added at the rear section of the longitudinal beam of the cabin for reinforcement. The rear section of the cabin longitudinal beam, the front wall plate and the front wall plate reinforcing plate are integrally fixed through welding, the three parts belong to three different parts of a front floor assembly, a left longitudinal beam assembly and a front wall plate assembly, the three parts are influenced by welding process, operation space and the like, assembly-level parts are influenced by error accumulation, and the precision is low. The welding plug holes formed in the front wall plate and the welding plug holes formed in the front wall plate reinforcing plate are in size error or even misplaced, even if the welding plug holes formed in the front wall plate cannot be completely sealed after a welding plug process is carried out, water on the outer side of the passenger cabin can still seep into the inner side of the passenger cabin from the welding plug holes, and the problem of water leakage inside the passenger cabin is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve current preceding bounding wall structure in, because assembly level part error is accumulated and is leaded to the precision low, the shortcoming of leaking appears in the passenger cabin that the welding consent on the preceding bounding wall can't be sealed completely and lead to, provides a preceding bounding wall additional strengthening.

The utility model provides a technical scheme that its technical problem adopted is: a front wall plate reinforcing structure comprises a front wall plate, a front wall reinforcing plate and a rear section of a cabin longitudinal beam, which are sequentially welded and fixed with each other from top to bottom, wherein a plurality of first welding plug holes fixedly plugged with the front wall reinforcing plate are formed in the front wall plate, a plurality of second welding plug holes fixedly plugged with the front wall plate are formed in the front wall reinforcing plate, a connecting edge fixedly welded with the front wall reinforcing plate is formed in the rear section of the cabin longitudinal beam, the first welding plug holes of the front wall plate are positioned above the second welding plug holes, and the connecting edge of the rear section of the cabin longitudinal beam is fixed to the bottom surface of the second welding plug holes; the sealing structure further comprises a sealing glue layer arranged on the front wall plate and located above the first welding plug hole.

Furthermore, an arch part is arranged on the front wall plate, and a plurality of first welding plug holes are uniformly distributed on two sides of the arch part.

Further, the cowl reinforcement panel includes a reinforcement portion provided inside the arch portion and a fixing portion located on both sides of the reinforcement portion and provided between the cowl panel and the connecting edge of the rear section of the cabin side member.

Specifically, the second welding plug holes are uniformly distributed on the fixing portion.

Specifically, at least one reinforcing portion extending in the direction in which the raised portion of the cowl panel is provided on the reinforcing portion of the cowl reinforcing panel.

Specifically, the reinforcing portion of the cowl reinforcing panel is provided with two reinforcing portions having a downwardly extending recess therebetween.

Further, the aperture of the first welding plug hole is larger than or equal to the aperture of the second welding plug hole.

Specifically, the first welding plug hole and the second welding plug hole are both oblong holes.

Specifically, the aperture of the first solder plug hole is 0mm to 4mm larger than the aperture of the second solder plug hole.

Further, the area of the sealant layer is larger than that of the first welding plug hole.

The utility model provides a dash panel additional strengthening's beneficial effect lies in: including the preceding bounding wall from top to bottom, preceding bounding wall and cabin longeron back end, will preceding bounding wall reinforcing plate set up between preceding bounding wall and cabin longeron back end, make preceding bounding wall reinforcing plate be affiliated to in the cabin longeron assembly, the assembly level has been reduced, the assembly precision has been improved, the dislocation problem between the welding consent has been weakened, thereby welding quality between the adjacent part has been improved, under the prerequisite that does not sacrifice collision performance, set up preceding bounding wall in the inboard of passenger cabin and the upper surface of the first consent of welding of preceding bounding wall sets up sealing glue layer, realize sealed function, thereby can solve the problem that preceding bounding wall welding consent department leaked effectively.

Drawings

Fig. 1 is a schematic perspective exploded view of a front bulkhead reinforcing structure provided by the present invention;

FIG. 2 is a full sectional view of a dash panel reinforcement structure provided by the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

In the figure: 100-cowl reinforcement, 10-cowl, 11-first weld tap, 12-camber, 20-cowl reinforcement, 21-reinforcement, 211-reinforcement, 22-anchor, 221-second weld tap, 30-cabin stringer back section, 31-joint band, 40-sealant layer, L1-width of first weld tap, L2-width of second weld tap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, a dash panel reinforcement structure 100 according to the present invention is provided. This cowl reinforcing structure 100 can effectively solve the problem that the arrangement of the cowl panel 10 is plugged by welding without sacrificing the collision performance, which results in water leakage. The collision stability of the integral structure of the front wall plate is ensured, and the phenomenon that water on the outer side of the passenger compartment reversely seeps into the inner side of the passenger compartment due to poor precision of the welding process can be avoided.

Specifically, as shown in fig. 1, the utility model provides a dash reinforcement structure 100 includes from top to bottom mutual welded fastening's dash 10 in proper order, preceding dash 20 and cabin longeron back-end 30, wherein, dash 10 sets up in the top, for passenger cabin inside parts in the automobile body structure, cabin longeron back-end 30 sets up in the bottom, for passenger cabin outside parts in the automobile body structure, preceding dash 20 sets up between dash 10 and cabin longeron back-end 30, be affiliated to cabin longeron assembly part, can improve the mechanical properties of dash 10 and cabin longeron back-end 30 junction effectively, improve the holistic crashworthiness of vehicle dash structure 100. The utility model provides an in preceding bounding wall additional strengthening 100, most region adoption spot welding carries out welded fastening between this preceding bounding wall 10, preceding bounding wall 20 and cabin longeron back end 30, and the operating space that does not have spot welding because the influence that receives the structure is regional, only can adopt the plug welding to carry out fixed connection. The front wall plate 10 of the front wall plate reinforcing structure 100 is provided with a plurality of first welding plug holes 11 which are fixedly plug-welded with the front wall reinforcing plate 20, the front wall reinforcing plate 20 is provided with a plurality of second welding plug holes 221 which are fixedly plug-welded with the front wall plate 10, and the cabin longitudinal beam rear section 30 is provided with a connecting edge 31 which is fixedly welded with the front wall reinforcing plate 20. In the plug-weld region between the dash panel 10 and the dash reinforcement panel 20 and the cabin side member rear section 30 in the dash reinforcement structure 100, a first weld plug hole 11 is provided in the dash panel 10 located inside the passenger compartment, and a second weld plug hole 221 is provided in the middle dash reinforcement panel 20. Wherein the first welding plug hole 11 of the dash panel 10 is located above the second welding plug hole 221 such that the top of the second welding plug hole 221 communicates with the first welding plug hole 11; the connecting edge 31 of the rear section 30 of the nacelle stringer is fixed to the bottom face of the second weld receptacle 221 so that the bottom of the second weld receptacle 221 is sealed by plug welding via the connecting edge 31 of the rear section 30 of the nacelle stringer.

Specifically, as shown in fig. 3, because this front bulkhead 10 is located the inboard in passenger cabin, the utility model provides a front bulkhead additional strengthening 100 is still including setting up on front bulkhead 10, being located the first sealant layer 40 that welds the consent 11 top, this sealant layer 40 can be sealed completely with the first top of welding the consent 11, ensures that first welding consent 11 department can not be towards the inside infiltration of passenger cabin for front bulkhead additional strengthening 100 can satisfy the inside sealed demand in passenger cabin. The connecting edge 31 of the cabin side member rear section 30 is located outside the passenger compartment, and even if the second weld insertion hole 221 is penetrated toward the side of the cabin side member rear section 30, the passenger compartment is not affected.

Further, as shown in fig. 2, in the dash panel reinforcement structure 100 provided by the present invention, an arch portion 12 is provided on the dash panel 10, and a plurality of first welding plug holes 11 are uniformly arranged on both sides of the arch portion 12. When the two sides of the arching portion 12 are welded with the front wall reinforcing plate 20 and the rear section 30 of the cabin longitudinal beam, spot welding can not be adopted, and the arching portion can only be fixed by plug welding, so that a plurality of first welding plug holes 11 are uniformly distributed on the two sides of the arching portion 12, and the first welding plug holes 11 are uniformly distributed along the length direction of the arching portion 12.

Specifically, as shown in fig. 2, the cross section of the cowl reinforcement panel 20 disposed between the cowl panel 10 and the cabin side member rear section 30 has an M-shaped structure. The cowl reinforcement panel 20 includes a reinforcement portion 21 provided inside the arch portion 12, and fixing portions 22 provided between the dash panel 10 and the connecting edge 31 of the cabin side member rear section 30 on both sides of the reinforcement portion 21. The reinforcing portion 21 of the cowl reinforcing panel 20 is located inside the arch portion 12 of the cowl panel 10, and the fixing portion 22 is located on both sides of the arch portion 12 of the cowl panel 10.

In the present embodiment, the reinforcing portion 21 of the cowl reinforcing panel 20 is provided with at least one reinforcing portion 211 extending in the direction in which the raised portion 12 of the cowl panel 10 is provided. The provision of the reinforcement portion 211 can enhance the overall rigidity and mechanical strength at the region of the raised portion 12 of the dash panel 10, thereby improving the collision performance of the dash panel 10.

The reinforcing portion 21 of the dash panel reinforcing panel 20 is provided with two reinforcing portions 211, and a recess extending downward is provided between the two reinforcing portions 211.

In the present embodiment, the fixing portion 22 in the cowl reinforcement panel 20 functions to connect the cowl panel 10 and the cabin side member rear section 30. The arrangement position and the arrangement number of the second welding plug holes 221 of the front cowl reinforcement panel 20 correspond to the arrangement position and the arrangement number of the first welding plug holes 11 of the front cowl 10. The second welding plug holes 221 formed in the front wall stiffener 20 are uniformly distributed on the fixing portion 22. The arrangement direction of the second welding plug holes 221 coincides with the arrangement direction of the first welding plug holes 11 so that the second welding plug holes 221 are located below the first welding plug holes 11 at the time of fixed connection.

Further, as shown in fig. 3, the utility model provides an among the preceding bounding wall additional strengthening 100, the area of this sealant layer 40 is greater than the first area of welding consent 11, make this sealant layer 40 can cover first welding consent 11 completely, preceding bounding wall 10 among the current bounding wall additional strengthening 100, before enclose reinforcing plate 20 and cabin longeron back end 30 and accomplish the plug welding processing back, recycle and sealed glue and cover the first top of welding consent 11, ensure that sealed glue can fill up first welding consent 11 completely, thereby play sealed effect at the first top of welding consent 11 of preceding bounding wall 10, can solve effectively by first welding the problem of consent 11 department to the inside infiltration of member cabin.

Further, as shown in fig. 3, the first solder plug hole 11 has a hole diameter equal to or larger than that of the second solder plug hole 221. The first welding plug hole 11 is located on one side of the passenger compartment, the aperture of the first welding plug hole 11 is larger than that of the second welding plug hole 221, when the first welding plug hole 11 and the second welding plug hole are assembled with each other, a part of errors generated due to assembly and machining can be absorbed through the aperture of the first welding plug hole 11, the size errors of the first welding plug hole 11 and the second welding plug hole 221 in the vertical direction are reduced, and plug welding between the front wall panel 10 and the front wall reinforcing plate 20 is facilitated. Meanwhile, the aperture of the first welding plug hole 11 is larger than or equal to that of the second welding plug hole 221, so that the two plates can be welded and fixed more conveniently, and the welding stability is ensured.

Specifically, the first weld plug hole 11 of the cowl panel 10 and the second weld plug hole 221 of the cowl reinforcement panel 20 may adopt a through hole, a kidney hole, an oblong hole, and the like. In the present embodiment, the first welding plug hole 11 and the second welding plug hole 221 are both oblong holes. The design of the long round hole is adopted, so that the plug welding machine can be better suitable for plug welding machining operation. The aperture of the first welding plug hole 11 is 0mm to 4mm larger than the aperture of the second welding plug hole 221, specifically, the length of the first welding plug hole 11 is 6mm to 10mm, the width L1 of the first welding plug hole 11 is 10mm to 14mm, in this embodiment, the length of the first welding plug hole 11 is 8mm, and the width L1 is 12 mm. The length of the second welding plug hole 221 is 4mm-8mm, and the width of the second welding plug hole 221 is 8mm-12 mm; in the present embodiment, the second solder hole 11 has a length of 6mm and a width L2 of 10 mm. The aperture setting between the first solder plug hole 11 and the second solder plug hole 221 can absorb the error of 1mm on one side.

The utility model provides a preceding bounding wall additional strengthening 100, including the preceding bounding wall 10 that arranges in proper order from top to bottom, preceding bounding wall 20 and cabin longeron back end 30, will preceding bounding wall 20 sets up between preceding bounding wall 10 and cabin longeron back end 30, make preceding bounding wall 20 be affiliated to in the cabin longeron assembly, reduced the assembly level, improved the assembly precision, weakened the dislocation problem of welding between the consent, thereby improved the welding quality between the adjacent part, the utility model provides a preceding bounding wall additional strengthening 100 is under the prerequisite that does not sacrifice collision performance, sets up preceding bounding wall 10 in the inboard of passenger cabin and the first upper surface that welds consent 11 on preceding bounding wall 10 sets up sealing glue layer 40, realizes sealed function, thereby can solve the problem that the consent of leaking is welded to panel 10 effectively.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A front wall plate reinforcing structure is characterized by comprising a front wall plate, a front wall reinforcing plate and a rear section of a cabin longitudinal beam which are sequentially welded and fixed with each other from top to bottom, wherein a plurality of first welding plug holes fixedly plugged with the front wall reinforcing plate are formed in the front wall plate; the sealing structure further comprises a sealing glue layer arranged on the front wall plate and located above the first welding plug hole.

2. The cowl reinforcing structure as claimed in claim 1, wherein an arch portion is provided on the cowl panel, and a plurality of the first welding holes are uniformly arranged at both sides of the arch portion.

3. The cowl reinforcement structure according to claim 2, wherein the cowl reinforcement panel includes a reinforcement portion provided inside the arch portion and a fixing portion provided between the cowl panel and the connecting edge of the rear section of the nacelle side member on both sides of the reinforcement portion.

4. The cowl reinforcing structure as claimed in claim 3, wherein a plurality of the second welding holes are uniformly distributed on the fastening portion.

5. A cowl reinforcing structure according to claim 3, wherein at least one reinforcing portion extending in a direction in which the raised portion of the cowl panel is provided on the reinforcing portion of the cowl reinforcing panel.

6. The cowl reinforcing structure as defined in claim 5, wherein two of said reinforcing portions are provided on the reinforcing portion of said cowl reinforcing panel with a downwardly extending recess therebetween.

7. The cowl reinforcing structure as defined in any one of claims 1 through 6, wherein a hole diameter of said first weld plug hole is equal to or larger than a hole diameter of said second weld plug hole.

8. The cowl reinforcing structure as defined in claim 7, wherein said first weld tap hole and said second weld tap hole are oblong holes.

9. The cowl reinforcing structure as defined in claim 8, wherein the aperture of said first weld hole is larger than the aperture of said second weld hole by 0mm to 4 mm.

10. The cowl reinforcing structure as claimed in claim 1, wherein an area of said sealant layer is larger than an area of said first weld hole.