CN211943510U

CN211943510U - Improved generation section bar inside local additional strengthening

Info

Publication number: CN211943510U
Application number: CN202020295376.0U
Authority: CN
Inventors: 王世春; 韩磊; 罗杰; 韩旭
Original assignee: Magna New Energy Vehicle Technology Zhenjiang Co ltd
Current assignee: Magna New Energy Vehicle Technology Zhenjiang Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-11-17
Anticipated expiration: 2030-03-11

Abstract

The utility model relates to the technical field of automobile parts, in particular to an improved type section bar internal local reinforcing structure for an automobile body structure, which comprises a reinforcing piece and a section bar body, wherein the section of the section bar body is of a trapezoidal structure, a trapezoidal cavity is arranged in the section bar body, the reinforcing piece is pressed in the trapezoidal cavity and is of a blocky structure, the reinforcing piece is used for locally reinforcing the section bar body, the appearance of the reinforcing piece is matched and connected with the inner cavity of the section bar body, interference ribs are arranged on the surface of the reinforcing piece and are in a convex shape, and the interference ribs are abutted against the inner wall of the cavity of the section bar body and are attached and connected with the inner wall of the cavity of the section bar; compared with the prior art, the utility model, can carry out local enhancement to this internal chamber optional position of section bar, abandon the tradition and done the logical muscle structure and improve enhancement schemes such as high performance material, greatly reduced section bar spare part weight itself, the cost is reduced has promoted material utilization rate, has reached the lightweight purpose.

Description

Improved generation section bar inside local additional strengthening

[ technical field ]

The utility model belongs to the technical field of the automobile parts technique and specifically relates to an inside local additional strengthening of improved generation section bar for automobile body structure.

[ background art ]

At present, in the design of automobile body structures, aluminum alloy sections are increasingly used to replace steel plates as main bearing structural members in consideration of light weight. During the use process, the section bar also plays a role in overlapping with the peripheral structure and local mounting points. Therefore, the local rigidity or strength requirement of the section bar needs to be reinforced, and especially the inner cavity part is a technical problem. In the prior art, the local reinforcement of the inner cavity of the section mainly adopts the following three modes:

(1) in the case of existing sections, the wall thickness of the profile is increased in order to meet local stiffness or strength requirements. However, the solution would greatly increase the overall weight of the component, and the increased non-required portion would cause performance waste, and increase the weight and cost;

(2) the section bar internal section adds the reinforced structure under the existing section condition to satisfy local rigidity or intensity requirement. However, the overall weight of the part is also greatly increased by the scheme, and the increased non-required parts cause performance waste, increase the weight and greatly increase the cost;

(3) the material grade is changed, and the high-performance material grade is used for replacing the existing material so as to meet the requirements of local rigidity or strength. However, this solution increases the strength, has limited performance improvement capability, and the high-performance material also greatly increases the material cost, which causes the performance of the non-use part to be excessive, and greatly increases the cost. Moreover, this approach does not promote stiffness.

[ contents of utility model ]

The utility model aims at solving foretell not enough and provide an inside local additional strengthening of improved generation section bar, can carry out the local enhancement to section bar body inner chamber optional position, greatly reduced section bar weight itself, the cost is reduced has solved traditional logical muscle structure and has changed the problem that high performance material exists.

Design an inside local additional strengthening of improved generation section bar for realizing above-mentioned purpose, including reinforcement 1 and section bar body 2, the cross-section of section bar body 2 is the trapezium structure, 2 inside trapezoidal cavities that are equipped with of section bar body, reinforcement 1 has been impressed in the trapezoidal cavity, reinforcement 1 is massive structure, reinforcement 1 is used for strengthening 2 local parts of section bar body, 1 appearance of reinforcement is connected with 2 inner chamber cooperations of section bar body, 1 surface of reinforcement is provided with interference muscle 11, interference muscle 11 is protruding form, interference muscle 11 offsets with the inner wall of 2 cavities of section bar body to be connected with the inner wall laminating of 2 cavities of section bar body.

Further, the left and right sides face of reinforcement 1 is connected with the laminating of the cavity inner wall of section bar body 2, a clearance 12 is reserved between the upper and lower two faces of reinforcement 1 and the cavity inner wall of section bar body 2, interference rib 11 sets up the upper and lower two faces department at reinforcement 1.

Further, a chamfer 13 is provided at the periphery of one side of the reinforcement 1.

Further, the reinforcement 1 and the profile body 2 are connected by FDS riveting or bolting.

Further, a carbon fiber layer is bonded on the surface of the profile body 2 and used for improving the corrosion resistance of the profile body 2.

Further, reinforcement 1 includes reinforcement body 14 and sets up diagonal rib one 15, diagonal rib two 16 in reinforcement body 14, reinforcement body 14 is trapezoidal frame construction, reinforcement body 14 cooperatees with the trapezoidal cavity of section bar body 2, diagonal rib one 15, diagonal rib two 16 all locate in reinforcement body 14 along the diagonal position of reinforcement body 14 to with the inside four corners fixed connection of reinforcement body 14.

Furthermore, a connecting column 17 is arranged at the center of the interior of the reinforcement body 14, the first tilted rib 15 and the second tilted rib 16 are intersected at the connecting column 17, and the first tilted rib 15 and the second tilted rib 16 are connected into a whole through the connecting column 17.

Compared with the prior art, the utility model, have following advantage:

(1) the utility model realizes that the inner cavity of the section bar body can locally reinforce any position by pressing the reinforcing piece into the trapezoidal cavity of the section bar body;

(2) the utility model abandons the traditional reinforcement scheme of making a steel bar structure and changing high-performance materials, etc. to the inner cavity of the section bar, thereby greatly reducing the weight of the section bar parts and reducing the cost;

(3) the utility model strengthens the weak stress part of the section bar, uses the least material, achieves the maximum mechanical effect, improves the material utilization rate and achieves the purpose of light weight;

(4) the utility model discloses an impress technology, the frock input cost is low, and technological requirement is low, and the implementation nature is strong, is worth popularizing and applying.

[ description of the drawings ]

Fig. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is a schematic view of the assembled structure of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of the structure at I in FIG. 3;

FIG. 5 is a schematic view of a partial structure of a reinforcement member according to the present invention;

in the figure: 1. the section bar comprises a reinforcing part 2, a section bar body 11, interference ribs 12, a gap 13, a chamfer 14, a reinforcing part body 15, a first inclined rib 16, a second inclined rib 17 and a connecting column.

[ detailed description of the invention ]

The invention is further described below with reference to the accompanying drawings:

as shown in the accompanying drawings, the utility model provides an inside local additional strengthening of improved generation section bar, including reinforcement 1 and section bar body 2, the cross-section of section bar body 2 is the trapezium structure, 2 inside trapezoidal cavitys that are equipped with of section bar body, reinforcement 1 has been impressed in the trapezoidal cavity, reinforcement 1 is massive structure, reinforcement 1 is used for strengthening 2 local of section bar body, 1 appearance of reinforcement is connected with 2 inner chamber cooperations of section bar body, 1 surface of reinforcement is provided with interference muscle 11, interference muscle 11 is protruding form, interference muscle 11 offsets with the inner wall of 2 cavitys of section bar body, and be connected with the inner wall laminating of 2 cavitys of section bar body. Wherein, the left and right sides face of reinforcement 1 is connected with the laminating of the cavity inner wall of section bar body 2, and the left and right sides face of reinforcement 1 is the face of connecting promptly, reserves gapped 12 between the upper and lower two of reinforcement 1 and the cavity inner wall of section bar body 2, and the upper and lower two of reinforcement 1 is the non-connection face promptly, and interference muscle 11 sets up in the upper and lower two of reinforcement 1 department, utilizes interference muscle 11 can make interference fit between reinforcement 1 and the section bar body 2 to play compact assembly effect. The reinforcing element 1 is provided with a chamfer 13 at the periphery of one side so as to be conveniently placed in the inner cavity of the profile body 2. The reinforcing piece 1 and the profile body 2 can be connected through FDS riveting or bolts so as to achieve a better assembling effect. And a carbon fiber layer can be bonded on the surface of the profile body 2 and is used for improving the corrosion resistance of the profile body 2.

The utility model discloses in, reinforcement 1 includes reinforcement body 14 and sets up diagonal rib one 15, diagonal rib two 16 in reinforcement body 14, and reinforcement body 14 is trapezoidal frame structure, and reinforcement body 14 cooperatees with the trapezoidal cavity of section bar body 2, and diagonal rib one 15, diagonal rib two 16 all locate reinforcement body 14 along the diagonal position of reinforcement body 14 in to with the inside four corners fixed connection of reinforcement body 14. This 14 inside centers of reinforcement body can be provided with spliced pole 17, and diagonal rib one 15 intersects in spliced pole 17 department with diagonal rib two 16, and diagonal rib one 15, diagonal rib two 16 connect as an organic wholely through spliced pole 17 to make the structural stability of reinforcement 1 better, improved the holistic intensity of section bar.

The utility model discloses a rib is interfered with section bar body inner chamber to reinforcement and section bar body inner chamber cooperation design, and the non-joint face department of reinforcement increases, has the fit clearance in advance to the non-joint face department of reinforcement to set up the chamfer in the peripheral department of reinforcement unilateral, this type cooperation design purpose all is for letting the reinforcement can conveniently lay the structural design technology of section bar body inner chamber and handle. This reinforcement adopts press or other frocks to impress the inner chamber of section bar body, and its locating position can be through the degree of depth control of impressing, because of there is the interference muscle on the reinforcement surface, and this can lead to can not produce phenomenons such as not hard up, drop in the in-process of impressing to can control position precision and faying surface firmly and laminate. In addition, according to the atress demand can be connected reinforcement and section bar body with multiple forms such as FDS connection or spiro union, also can not connect, but rely on the local interference fit of fitting surface, can play the assembly effect.

The present invention is not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.

Claims

1. The utility model provides an inside local additional strengthening of improved generation section bar which characterized in that: including reinforcement (1) and section bar body (2), the cross-section of section bar body (2) is the trapezium structure, section bar body (2) inside is equipped with trapezoidal cavity, reinforcement (1) has been impressed in the trapezoidal cavity, reinforcement (1) is massive structure, reinforcement (1) is used for strengthening section bar body (2) part, reinforcement (1) appearance is connected with section bar body (2) inner chamber cooperation, reinforcement (1) surface is provided with interference muscle (11), interference muscle (11) are protruding form, interference muscle (11) offset with the inner wall of section bar body (2) cavity to be connected with the inner wall laminating of section bar body (2) cavity.

2. The improved local reinforcing structure in the section bar according to claim 1, wherein: the left side surface and the right side surface of the reinforcing piece (1) are attached to and connected with the inner wall of the cavity of the section bar body (2), a gap (12) is reserved between the upper surface and the lower surface of the reinforcing piece (1) and the inner wall of the cavity of the section bar body (2), and the interference ribs (11) are arranged on the upper surface and the lower surface of the reinforcing piece (1).

3. The improved local reinforcing structure in the section bar according to claim 1, wherein: and a chamfer (13) is arranged at the periphery of one side of the reinforcing piece (1).

4. An improved section bar internal local reinforcing structure as claimed in claim 1, 2 or 3, characterized in that: the reinforcing piece (1) is connected with the profile body (2) through FDS riveting or bolts.

5. The improved local reinforcing structure in the section bar according to claim 1, wherein: the surface of the section bar body (2) is bonded with a carbon fiber layer, and the carbon fiber layer is used for improving the corrosion resistance of the section bar body (2).

6. The improved local reinforcing structure in the section bar according to claim 1, wherein: stiffener (1) includes stiffener body (14) and sets up diagonal rib one (15), diagonal rib two (16) in stiffener body (14), stiffener body (14) are trapezoidal frame structure, the trapezoidal cavity of stiffener body (14) and section bar body (2) cooperatees, diagonal rib one (15), diagonal rib two (16) are all located in stiffener body (14) along the diagonal position of stiffener body (14) to with the inside four corners fixed connection of stiffener body (14).

7. The improved local reinforcing structure in the section bar according to claim 6, wherein: the reinforcing piece is characterized in that a connecting column (17) is arranged at the center inside the reinforcing piece body (14), a first inclined rib (15) and a second inclined rib (16) are intersected at the connecting column (17), and the first inclined rib (15) and the second inclined rib (16) are connected into a whole through the connecting column (17).