CN112477986A - Front auxiliary frame left-rear mounting assembly structure - Google Patents
Front auxiliary frame left-rear mounting assembly structure Download PDFInfo
- Publication number
- CN112477986A CN112477986A CN202011359810.8A CN202011359810A CN112477986A CN 112477986 A CN112477986 A CN 112477986A CN 202011359810 A CN202011359810 A CN 202011359810A CN 112477986 A CN112477986 A CN 112477986A
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- China
- Prior art keywords
- cabin
- middle section
- auxiliary frame
- fixing plate
- longitudinal beam
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- 238000003466 welding Methods 0.000 claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 2
- 230000003068 static effect Effects 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 description 3
- 206010016256 fatigue Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a left and rear mounting assembly structure of a front auxiliary frame, which comprises a left connecting plate of a lower cross beam of a cabin, a left and rear fixing plate of the front auxiliary frame connected to the inner side of the left connecting plate of the lower cross beam of the cabin, and a middle section of a left longitudinal beam of the cabin integrated at the inner side of the left and rear fixing plate of the front auxiliary frame; a screwed pipe is fixedly connected with the left rear fixing plate of the front auxiliary frame along the direction vertical to the left rear fixing plate of the front auxiliary frame; the junction of the threaded pipe and the front auxiliary frame left rear fixing plate, the cabin left longitudinal beam middle section and the cabin left longitudinal beam middle section lower reinforcing plate is provided with a plurality of closed cavity structures. According to the assembly structure, threaded pipes are fixed through CO2 shielded welding, a plurality of closed cavity structures are formed at the joints of the left rear fixing plate of the front auxiliary frame, the middle section of the left longitudinal beam of the cabin and the lower reinforcing plate of the middle section of the left longitudinal beam of the cabin, and the outer layer is reinforced through the left connecting plate of the lower cross beam of the cabin, so that the structural stability and the static rigidity performance are improved.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a front auxiliary frame left-rear mounting assembly structure.
Background
In the present day of the vigorous development of new energy automobiles, the stability and reliability of automobile frames become a hot spot direction for automobile research and manufacture. The structure mounting point static rigidity of the front subframe left and rear mounting assembly structure of the automobile in the prior art is low, a plurality of closed cavities are not formed in the whole front subframe left and rear mounting assembly structure, and the dynamic rigidity and rigidity of the mounting point are also low. In addition, the structure of the left and rear mounting assembly of the front auxiliary frame in the prior art is discontinuous and unreliable, and the durability of the whole vehicle is seriously influenced.
Therefore, based on the above technical solutions, those skilled in the art need to develop a novel front subframe left and rear mounting assembly structure.
Disclosure of Invention
The invention aims to provide a left and rear mounting assembly structure of a front subframe, which can improve the static rigidity performance of a mounting point, ensure good continuity of the whole structure and high safety performance and reduce the risk of fatigue cracking.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a left and rear mounting assembly structure of a front auxiliary frame, which comprises:
a left connecting plate of a lower beam of the engine room;
the left rear fixing plate of the front auxiliary frame is connected to the inner side of the left connecting plate of the lower cross beam of the engine room; and
the middle section of the left longitudinal beam of the engine room is integrated on the inner side of the left rear fixing plate of the front auxiliary frame;
a screwed pipe is fixedly connected with the left rear fixing plate of the front auxiliary frame along the direction vertical to the left rear fixing plate of the front auxiliary frame;
the threaded tube extends towards the interior of the assembly structure;
one end of the threaded pipe extending into the assembly structure is provided with a cabin left longitudinal beam middle section lower reinforcing plate, and the cabin left longitudinal beam middle section lower reinforcing plate is fixedly connected with the cabin left longitudinal beam middle section;
the junction of the threaded pipe and the front auxiliary frame left rear fixing plate, the cabin left longitudinal beam middle section and the cabin left longitudinal beam middle section lower reinforcing plate is provided with a plurality of closed cavity structures.
Further, the left rear fixing plate of the front auxiliary frame comprises:
a fixing plate body;
the fixing plate first body extends towards the threaded pipe and is fixedly connected with the threaded pipe and the left connecting plate of the lower cross beam of the engine room respectively; and
the second fixing plate body is bent downwards, extends and is fixedly connected with the middle section of the left longitudinal beam of the cabin;
the front auxiliary frame left rear fixing plate and the threaded pipe pass through CO2Welding and fixing by shielded welding;
the front auxiliary frame left rear fixing plate and the cabin lower cross beam left connecting plate are fixed through electric welding;
the front auxiliary frame left rear fixing plate and the cabin left longitudinal beam middle section are fixed through electric welding;
and a first closed cavity is formed between the left rear fixing plate of the front auxiliary frame and the middle section of the left longitudinal beam of the cabin through the threaded pipe.
Further, the middle section of the left longitudinal beam of the engine room and the threaded pipe pass through CO2And welding and fixing by shielded welding.
Further, reinforcing plate includes under the left longeron middle section of cabin:
passing CO through said threaded pipe2The lower reinforcing plate body is welded and fixed by shielded welding; and
a lower reinforcing plate extension body extending in a downward bending manner;
and the lower reinforcing plate extension body and the middle section of the left longitudinal beam of the cabin are fixed through electric welding.
Furthermore, a second closed cavity is formed between the lower reinforcing plate of the middle section of the left longitudinal beam of the cabin and the middle section of the left longitudinal beam of the cabin.
Furthermore, a positioning hole and a liquid leakage hole are prefabricated in the front auxiliary frame left rear fixing plate.
In the technical scheme, the left and rear mounting assembly structure of the front auxiliary frame provided by the invention has the following beneficial effects:
the assembly structure of the present invention passes CO2The protective welding is fixedly provided with threaded pipes, a plurality of closed cavity structures are formed at the joints of the front auxiliary frame left rear fixing plate, the cabin left longitudinal beam middle section and the cabin left longitudinal beam middle section lower reinforcing plate, and the outer layer is reinforced through the cabin lower cross beam left connecting plate, so that the structural stability and the static rigidity performance are improved.
The assembly structure of the invention improves the dynamic stiffness of the mounting point to 23600N/mm under the condition of not increasing the cost, and simultaneously forms a left, right, front and back continuous structure, thereby increasing the durability and safety performance of the mounting structure and reducing the risk of fatigue cracking.
The assembly structure of the invention is formed into a through structure in front, back, left and right, thereby increasing the collision performance of the vehicle.
The welding between the invention and the threaded pipe adopts CO2And the static rigidity performance of a mounting point can be improved by shielded welding.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural view of a front subframe left and rear mounting assembly structure according to an embodiment of the present invention;
fig. 2 is a sectional view taken along line a-a in fig. 1.
Description of reference numerals:
1. a front subframe left rear fixing plate; 2. a left connecting plate of a lower beam of the engine room; 3. a middle section of a left longitudinal beam of the engine room; 4. a middle section lower reinforcing plate of a left longitudinal beam of the cabin; 5. a threaded pipe;
101. a fixing plate body; 102. a first body of the fixed plate; 103. a fixed plate second body; 104. positioning holes;
401. a lower stiffener extension;
601. a first enclosed cavity; 602. a second enclosed cavity.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
See fig. 1-2;
the invention relates to a left and rear mounting assembly structure of a front auxiliary frame, which comprises:
a left connecting plate 2 of a lower beam of the engine room;
a front auxiliary frame left rear fixing plate 1 connected to the inner side of the cabin lower beam left connecting plate 2; and
the middle section 3 of the left longitudinal beam of the engine room is integrated on the inner side of the left rear fixing plate 1 of the front auxiliary frame;
a screwed pipe 5 is fixedly connected with the left rear fixing plate 1 of the front auxiliary frame along the direction vertical to the left rear fixing plate 1 of the front auxiliary frame;
the threaded pipe 5 extends towards the inside of the assembly structure;
one end of the threaded pipe 5 extending into the assembly structure is provided with a cabin left longitudinal beam middle section lower reinforcing plate 4, and the cabin left longitudinal beam middle section lower reinforcing plate 4 is fixedly connected with a cabin left longitudinal beam middle section 3;
the joints of the threaded pipe 5, the front auxiliary frame left rear fixing plate 1, the cabin left longitudinal beam middle section 3 and the cabin left longitudinal beam middle section lower reinforcing plate 4 are provided with a plurality of closed cavity structures.
Specifically, this embodiment discloses a novel installation assembly structure behind preceding sub vehicle frame left side, it includes cabin bottom end rail left side connecting plate 2, preceding sub vehicle frame left side rear fixed plate 1, reinforcing plate 4 under cabin left side longeron middle section 3 and the cabin left side longeron middle section, along the embedded above-mentioned screwed pipe of fixedly connected with of the above-mentioned plate body direction of perpendicular to 5, utilize this screwed pipe 5, and link firmly between the adjacent plate body and form into a plurality of closed cavity structures, improve holistic dynamic rigidity performance with this kind of mode, and overall structure's continuity and security performance.
Preferably, the front subframe left rear fixing plate 1 in the present embodiment includes:
a fixed plate body 101;
the first fixing plate body 102 extends towards the threaded pipe 5 and is fixedly connected with the threaded pipe 5 and the left connecting plate 2 of the lower cross beam of the engine room respectively; and
a second fixed plate body 103 which is bent downwards, extends and is fixedly connected with the middle section 3 of the left longitudinal beam of the cabin;
the left rear fixing plate 1 of the front auxiliary frame and the screwed pipe 5 pass through CO2Welding and fixing by shielded welding;
the left rear fixing plate 1 of the front auxiliary frame and the left connecting plate 2 of the lower cross beam of the engine room are fixed through electric welding;
the left rear fixing plate 1 of the front auxiliary frame is fixed with the middle section 3 of the left longitudinal beam of the cabin through electric welding;
a first closed cavity 601 is formed between the front subframe left rear fixing plate 1 and the cabin left longitudinal beam middle section 3 through a threaded pipe 5.
Wherein, the middle section 3 of the left longitudinal beam of the engine room and the threaded pipe 5 pass through CO2And welding and fixing by shielded welding.
Preferably, the middle-lower reinforcing plate 4 of the left longitudinal beam of the nacelle in the embodiment includes:
passing CO through the threaded pipe 52The lower reinforcing plate body is welded and fixed by shielded welding; and
a lower reinforcing plate extension 401 extending while being bent downward;
the lower reinforcing plate extension 401 and the middle section 3 of the left longitudinal beam of the cabin are fixed through electric welding.
A second closed cavity 602 is formed between the cabin left longitudinal beam middle section lower reinforcing plate 4 and the cabin left longitudinal beam middle section 3.
In addition, in the embodiment, a positioning hole 104 and a liquid leakage hole are prefabricated in the front subframe left rear fixing plate 1.
In the technical scheme, the left and rear mounting assembly structure of the front auxiliary frame provided by the invention has the following beneficial effects:
the assembly structure is fixedly provided with the threaded pipes 5 through CO2 shielded welding, a plurality of closed cavity structures are formed at the joints of the left rear fixing plate 1 of the front auxiliary frame, the middle section 3 of the left longitudinal beam of the engine room and the lower reinforcing plate 4 of the middle section of the left longitudinal beam of the engine room, and the outer layer is reinforced through the left connecting plate 2 of the lower cross beam of the engine room, so that the structural stability and the static rigidity performance are improved.
The assembly structure of the invention improves the dynamic stiffness of the mounting point to 23600N/mm under the condition of not increasing the cost, and simultaneously forms a left, right, front and back continuous structure, thereby increasing the durability and safety performance of the mounting structure and reducing the risk of fatigue cracking.
The assembly structure of the invention is formed into a through structure in front, back, left and right, thereby increasing the collision performance of the vehicle.
The welding between the invention and the threaded pipe 5 adopts CO2 shielded welding, which can increase the static rigidity performance of the mounting point.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. The utility model provides a preceding sub vehicle frame installs assembly structure from left to right which characterized in that, this assembly structure includes:
a left connecting plate (2) of a lower cross beam of the engine room;
the left rear fixing plate (1) of the front auxiliary frame is connected to the inner side of the left connecting plate (2) of the lower cross beam of the engine room; and
the middle section (3) of the left longitudinal beam of the engine room is integrated on the inner side of the left rear fixing plate (1) of the front auxiliary frame;
a threaded pipe (5) is fixedly connected with the left rear fixing plate (1) of the front auxiliary frame along the direction vertical to the left rear fixing plate (1) of the front auxiliary frame;
the threaded pipe (5) extends towards the inside of the assembly structure;
one end of the threaded pipe (5) extending into the assembly structure is provided with a cabin left longitudinal beam middle section lower reinforcing plate (4), and the cabin left longitudinal beam middle section lower reinforcing plate (4) is fixedly connected with the cabin left longitudinal beam middle section (3);
the junction of screwed pipe (5) with reinforcing plate (4) under preceding sub vehicle frame left side rear fixed plate (1), cabin left side longeron middle section (3) and the cabin left side longeron middle section is formed with a plurality of closed cavity structures.
2. The front subframe left rear mounting assembly structure as claimed in claim 1, wherein said front subframe left rear fixing plate (1) comprises:
a fixed plate body (101);
the fixing plate first body (102) extends towards the threaded pipe (5) and is fixedly connected with the threaded pipe (5) and the left connecting plate (2) of the lower cross beam of the engine room respectively; and
a second fixed plate body (103) which extends downwards in a bending way and is fixedly connected with the middle section (3) of the left longitudinal beam of the cabin;
the front auxiliary frame left rear fixing plate (1) and the threaded pipe (5) pass through CO2Welding and fixing by shielded welding;
the front auxiliary frame left rear fixing plate (1) and the cabin lower cross beam left connecting plate (2) are fixed through electric welding;
the front auxiliary frame left rear fixing plate (1) and the cabin left longitudinal beam middle section (3) are fixed through electric welding;
and a first closed cavity (601) is formed between the front auxiliary frame left rear fixing plate (1) and the cabin left longitudinal beam middle section (3) through the threaded pipe (5).
3. The front subframe left and rear mounting assembly structure as claimed in claim 2, wherein the cabin left side rail middle section (3) and the threaded pipe (5) pass through CO2And welding and fixing by shielded welding.
4. The front subframe left and rear mount assembly structure of claim 2 wherein said mid-section lower nacelle side rail reinforcement panel (4) comprises:
passing CO through said threaded pipe (5)2The lower reinforcing plate body is welded and fixed by shielded welding; and
a lower reinforcing plate extension body (401) extending in a downward bent manner;
and the lower reinforcing plate extension body (401) and the middle section (3) of the left longitudinal beam of the cabin are fixed through electric welding.
5. The front subframe left and rear mounting assembly as claimed in claim 4, wherein a second closed cavity (602) is formed between the cabin left side rail mid-section lower reinforcement plate (4) and the cabin left side rail mid-section (3).
6. The front subframe left rear mounting assembly structure as claimed in claim 1, wherein the front subframe left rear fixing plate (1) is preformed with positioning holes (104) and weep holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359810.8A CN112477986A (en) | 2020-11-27 | 2020-11-27 | Front auxiliary frame left-rear mounting assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359810.8A CN112477986A (en) | 2020-11-27 | 2020-11-27 | Front auxiliary frame left-rear mounting assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112477986A true CN112477986A (en) | 2021-03-12 |
Family
ID=74936154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011359810.8A Pending CN112477986A (en) | 2020-11-27 | 2020-11-27 | Front auxiliary frame left-rear mounting assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112477986A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6782623B1 (en) * | 2002-03-28 | 2004-08-31 | Coach House, Inc. | Body mouting system |
| EP1679252A1 (en) * | 2005-01-06 | 2006-07-12 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Connection for a car frame |
| CN204801887U (en) * | 2015-06-30 | 2015-11-25 | 广州汽车集团股份有限公司 | Subframe mounting structure and have its car behind car |
| CN206218009U (en) * | 2015-12-03 | 2017-06-06 | 北京汽车股份有限公司 | Subframe mount structure and automobile |
| CN207809517U (en) * | 2017-12-20 | 2018-09-04 | 捷星新能源科技（苏州）有限公司 | A kind of automobile rear longitudinal girder assembly |
| CN209667205U (en) * | 2019-03-04 | 2019-11-22 | 广州汽车集团股份有限公司 | A kind of Rear secondary frame for vehicle mounting structure and the automobile with it |
-
2020
- 2020-11-27 CN CN202011359810.8A patent/CN112477986A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6782623B1 (en) * | 2002-03-28 | 2004-08-31 | Coach House, Inc. | Body mouting system |
| EP1679252A1 (en) * | 2005-01-06 | 2006-07-12 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Connection for a car frame |
| CN204801887U (en) * | 2015-06-30 | 2015-11-25 | 广州汽车集团股份有限公司 | Subframe mounting structure and have its car behind car |
| CN206218009U (en) * | 2015-12-03 | 2017-06-06 | 北京汽车股份有限公司 | Subframe mount structure and automobile |
| CN207809517U (en) * | 2017-12-20 | 2018-09-04 | 捷星新能源科技（苏州）有限公司 | A kind of automobile rear longitudinal girder assembly |
| CN209667205U (en) * | 2019-03-04 | 2019-11-22 | 广州汽车集团股份有限公司 | A kind of Rear secondary frame for vehicle mounting structure and the automobile with it |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210312 |