CN220447970U - Automobile auxiliary frame mounting structure - Google Patents
Automobile auxiliary frame mounting structure Download PDFInfo
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- CN220447970U CN220447970U CN202322172052.4U CN202322172052U CN220447970U CN 220447970 U CN220447970 U CN 220447970U CN 202322172052 U CN202322172052 U CN 202322172052U CN 220447970 U CN220447970 U CN 220447970U
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- auxiliary frame
- frame mounting
- front section
- plate
- engine room
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 36
- 238000003466 welding Methods 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model relates to an automobile auxiliary frame mounting structure, which comprises an engine room boundary beam front section and an engine room boundary beam outer plate which is overlapped with one side of the engine room boundary beam front section, wherein the engine room boundary beam outer plate and the engine room boundary beam front section are overlapped to form a first closed cavity structure; an auxiliary frame mounting reinforcing plate is arranged in the first closed cavity structure; an auxiliary frame mounting plate is fixedly connected to the other side of the front section of the engine room boundary beam to form a second channel cavity structure; the auxiliary frame mounting plate corresponds to an auxiliary frame mounting reinforcing plate arranged in the first closed cavity structure; the auxiliary frame mounting sleeve sequentially penetrates through the through holes formed in the auxiliary frame mounting plate, the front section of the engine cabin side beam and the auxiliary frame mounting reinforcing plate and is fixedly connected with the auxiliary frame mounting plate, the engine cabin side beam front section and the auxiliary frame mounting reinforcing plate. The auxiliary frame mounting point strength and dynamic stiffness of the vehicle body attachment point can be improved, and the auxiliary frame mounting point accuracy can be easily controlled, and the auxiliary frame mounting point strength and dynamic stiffness control device is simple in structure and light in weight.
Description
Technical Field
The utility model relates to an automobile chassis, in particular to an automobile auxiliary frame mounting structure, and especially relates to an auxiliary frame mounting structure arranged on an engine room boundary beam front section assembly.
Background
With the rapid development of the automotive industry and technology, automotive performance requires higher and higher rigidity of the body structure. The subframe is an important part of the suspension system and the vehicle body, and not only bears most of the weight of the engine assembly and the suspension system, but also bears various impact forces during the running of the automobile, so that the subframe plays a particularly important role in the whole vehicle. The auxiliary frame has high strength and rigidity, and the auxiliary frame mounting point on the front section assembly of the side beam of the engine cabin has high strength and dynamic rigidity of the attachment point. The higher the sub-frame mounting point strength and attachment point dynamic stiffness on the engine room side rail front section assembly, the greater the improvement to chassis performance. For the above reasons, it is particularly important to design a subframe body mounting structure having high strength and attachment point dynamic stiffness. Therefore, improvements to existing subframe mounting structures are needed.
CN104176126a discloses a mounting structure of an automotive subframe on a front section of an engine room side beam, which comprises the front section of the engine room side beam, a subframe mounting threaded pipe, a subframe mounting nut plate and a threaded pipe reinforcing plate. The auxiliary frame is provided with the threaded pipe, the auxiliary frame is provided with the nut plate and the threaded pipe reinforcing plate which are mutually connected in pairs to form corners, the corners are welded in the reinforcing piece together, the reinforcing effect is formed in the X, Y, Z direction of the automobile body, the torsion of the mounting surface of the auxiliary frame during the whole automobile operation can be prevented, and the torsion attenuation of the auxiliary frame mounting bolt is avoided. Under the premise of ensuring the structure installation function, the novel structure has high strength and high rigidity of installation points which cannot be achieved by a general structure. The technical solution disclosed in this patent document is certainly not a beneficial attempt in the art.
Disclosure of Invention
The utility model aims to provide an automobile auxiliary frame mounting structure which can improve the strength of a mounting point and the dynamic rigidity of a vehicle body attachment point, and is easy to control the accuracy of the mounting point of an auxiliary frame, simple in structure and light in weight.
The utility model relates to an automobile auxiliary frame mounting structure, which comprises an engine room boundary beam front section and an engine room boundary beam outer plate which is lapped with one side of the engine room boundary beam front section, wherein the engine room boundary beam outer plate and the engine room boundary beam front section are lapped to form a first closed cavity structure; an auxiliary frame mounting reinforcing plate is arranged in the first closed cavity structure; an auxiliary frame mounting plate is fixedly connected to the other side of the front section of the engine room boundary beam to form a second channel cavity structure; the auxiliary frame mounting plate corresponds to an auxiliary frame mounting reinforcing plate arranged in the first closed cavity structure; the auxiliary frame mounting sleeve sequentially penetrates through the through holes formed in the auxiliary frame mounting plate, the front section of the engine cabin side beam and the auxiliary frame mounting reinforcing plate and is fixedly connected with the auxiliary frame mounting plate, the engine cabin side beam front section and the auxiliary frame mounting reinforcing plate.
Further, the section of the front section of the boundary beam of the engine compartment is U-shaped, and one side of the boundary beam is open and provided with a flange; the flange edge is lapped with welding spots of an outer plate of an engine cabin boundary beam to form a first closed cavity structure.
Further, the auxiliary frame mounting reinforcing plate is arranged in one side of the front section of the engine cabin boundary beam and is overlapped with three sides of the front section of the engine cabin boundary beam, and a first cavity structure is formed by welding spots.
Further, the auxiliary frame mounting plate is arranged on the other side of the front section of the engine room side beam, is overlapped with three sides of the front section of the engine room side beam, is connected by welding spots to form a second cavity structure, and corresponds to the first cavity structure.
Further, a via hole is formed in the front section of the engine room side beam, the diameter of the via hole is 1mm larger than the outer diameter of the auxiliary frame mounting sleeve, and the via hole corresponds to the via hole formed in the auxiliary frame mounting plate and the auxiliary frame mounting reinforcing plate.
Further, the auxiliary frame installation sleeve sequentially penetrates through the through holes formed in the auxiliary frame installation plate, the front section of the engine cabin side beam and the auxiliary frame installation reinforcing plate, two ends of the auxiliary frame installation sleeve are respectively overlapped with the auxiliary frame installation reinforcing plate and the auxiliary frame installation plate, and the auxiliary frame installation sleeve is connected by adopting a protection welding mode.
Further, the middle part of the auxiliary frame mounting sleeve is connected with a via hole on the front section of the boundary beam of the engine cabin by adopting a protective welding mode.
The utility model has the beneficial effects that:
the auxiliary frame mounting structure of the automobile relates to an auxiliary frame mounting structure in the front section assembly of the side beam of the engine cabin, and is realized by optimizing the auxiliary frame mounting structure on the front section of the side beam of the engine cabin. The auxiliary frame comprises an engine room side beam front section, an engine room side beam outer plate, an auxiliary frame mounting reinforcing plate and an auxiliary frame mounting sleeve, wherein the engine room side beam outer plate and the engine room side beam front section are lapped to form a first closed cavity structure, so that the auxiliary frame mounting point strength and the vehicle body attachment point dynamic stiffness are improved; the auxiliary frame mounting plate is fixedly connected with the front section of the engine room boundary beam to form a second cavity structure, so that the strength of the auxiliary frame mounting point and the dynamic rigidity of the vehicle body attachment point are further improved.
The auxiliary frame mounting reinforcing plate is arranged in the engine room boundary beam and is overlapped with the front section of the engine room boundary beam in three sides, and welding spots are adopted for connection, so that the strength of the auxiliary frame mounting point and the dynamic rigidity of the vehicle body attachment point can be improved in the X/Y/Z directions of the vehicle.
Because the front section of the engine room boundary beam is provided with the via hole, the diameter of the via hole is 1mm larger than that of the auxiliary frame installation sleeve, the via hole coaxially corresponds to the via hole formed in the auxiliary frame installation plate and the auxiliary frame installation reinforcing plate, the two ends of the auxiliary frame installation sleeve are respectively overlapped with the auxiliary frame installation reinforcing plate and the auxiliary frame installation plate by adopting the welding protection, and the middle part of the auxiliary frame installation sleeve is connected with the front section of the engine room boundary beam by adopting the welding protection at the position of the via hole, so that the accuracy of the auxiliary frame installation point is easy to control.
The utility model realizes the double-cavity structure of the installation of the auxiliary frame through simple structural optimization, thereby improving the strength of the installation point of the auxiliary frame and the dynamic rigidity of the attachment point of the vehicle body, and having low weight and low cost.
Drawings
FIG. 1 is a schematic illustration of the exterior of the present utility model;
FIG. 2 is a section A-A of FIG. 1;
FIG. 3 is a schematic illustration of the overlap of a subframe mounting reinforcement plate with the front section of an engine compartment boundary beam;
FIG. 4 is a schematic illustration of the overlap of the subframe mounting plate with the front section of the engine compartment boundary beam;
FIG. 5 is a schematic view of the mounting structure of the present utility model;
FIG. 6 is an exploded view of FIG. 5;
in the figure (technical features indicated by the marks):
1-front section of an engine room side beam, 2-outer plate of the engine room side beam, 3-auxiliary frame mounting reinforcing plate, 4-auxiliary frame mounting plate and 5-auxiliary frame mounting sleeve.
Detailed Description
Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Examples
Referring to fig. 1 to 6, an automobile auxiliary frame mounting structure comprises an engine room side beam front section 1 and an engine room side beam outer plate 2 overlapped with one side of the engine room side beam front section 1, wherein the engine room side beam outer plate 2 and the engine room side beam front section 1 are overlapped to form a first closed cavity structure so as to improve the auxiliary frame mounting point strength and the dynamic stiffness of a vehicle body attachment point; the method is characterized in that: an auxiliary frame mounting reinforcing plate 3 is arranged in the first closed cavity structure; the other side of the front section 1 of the boundary beam of the engine cabin is fixedly connected with an auxiliary frame mounting plate 4 to form a second cavity structure so as to further improve the strength of the mounting point of the auxiliary frame and the dynamic rigidity of the attachment point of the vehicle body; the auxiliary frame mounting plate 4 corresponds to an auxiliary frame mounting reinforcing plate 3 arranged in the first closed cavity structure; the auxiliary frame mounting sleeve 5 sequentially penetrates through the through holes formed in the auxiliary frame mounting plate 4, the engine cabin side beam front section 1 and the auxiliary frame mounting reinforcing plate 3, and is fixedly connected with the auxiliary frame mounting sleeve 5 and the auxiliary frame mounting reinforcing plate 3.
The positioning connection of the front section of the engine cabin boundary beam, the outer plate of the engine cabin boundary beam, the auxiliary frame mounting plate and the auxiliary frame mounting reinforcing plate is adopted to form a two-way closed cavity structure, the auxiliary frame mounting sleeve is fixedly connected with the two-way closed cavity structure, the strength of the mounting point of the auxiliary frame and the dynamic stiffness of the connecting point of the chassis and the vehicle body are high, and the auxiliary frame boundary beam has the advantages of simple structure, low weight, low cost, shorter size chain and easy control of precision.
The front section 1 of the engine room boundary beam is U-shaped, one side of the front section is open and provided with a flange; the flange edge is lapped with welding spots of the outer plate 2 of the boundary beam of the engine cabin to form a first closed cavity structure.
The auxiliary frame installation reinforcing plate 3 is arranged in one side of the front section 1 of the engine room boundary beam and is overlapped with three sides of the front section 1 of the engine room boundary beam, and a first cavity structure is formed by welding spots. The strength of the mounting point of the auxiliary frame and the dynamic stiffness of the attachment point of the vehicle body can be improved in the X/Y/Z directions of the vehicle.
The auxiliary frame mounting plate 4 is arranged on the other side of the front section 1 of the engine room side beam, is overlapped with three sides of the front section 1 of the engine room side beam, is connected by welding spots to form a second cavity structure, and corresponds to the first cavity structure.
The front section 1 of the engine room side beam is provided with a through hole, the diameter of the through hole is 1mm larger than the outer diameter of the auxiliary frame mounting sleeve 5, and the through hole corresponds to the through hole arranged on the auxiliary frame mounting plate 4 and the auxiliary frame mounting reinforcing plate 3.
The auxiliary frame installation sleeve 5 sequentially penetrates through the through holes formed in the auxiliary frame installation plate 4, the front section 1 of the engine cabin side beam and the auxiliary frame installation reinforcing plate 3, two ends of the auxiliary frame installation sleeve 5 are respectively overlapped with the auxiliary frame installation reinforcing plate 3 and the auxiliary frame installation plate 4, and the auxiliary frame installation sleeve is connected by adopting a protection welding mode.
The middle part of the auxiliary frame mounting sleeve 5 is connected with a via hole on the front section 1 of the boundary beam of the engine cabin by adopting a protective welding mode.
According to the automobile auxiliary frame installation structure, through CAE analysis, under the condition of weight reduction, the auxiliary frame installation point strength and the dynamic stiffness of the automobile body attachment point are obviously improved, and the strength and the stiffness meet the requirements.
Compared with the prior art, the size chain is shortened by 1-2 links through size engineering analysis, the precision control can be better ensured, and the structural precision meets the requirements.
Compared with the prior art, the automobile auxiliary frame mounting structure is good in protective welding process through welding process analysis, can effectively avoid larger welding deformation, and meets the requirements in manufacturability.
Compared with the prior art, the automobile auxiliary frame mounting structure 1 has the advantages that the weight of a bicycle is reduced by about 0.5kg, and the cost of the bicycle is reduced by about 7.5 yuan.
The above embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model.
Claims (7)
1. An automobile auxiliary frame mounting structure comprises an engine cabin boundary beam front section (1) and an engine cabin boundary beam outer plate (2) which is overlapped with one side of the engine cabin boundary beam front section (1), wherein the engine cabin boundary beam outer plate (2) and the engine cabin boundary beam front section (1) are overlapped to form a first closed cavity structure; an auxiliary frame mounting reinforcing plate (3) is arranged in the first closed cavity structure; an auxiliary frame mounting plate (4) is fixedly connected to the other side of the front section (1) of the engine room boundary beam to form a second cavity structure; the auxiliary frame mounting plate (4) corresponds to an auxiliary frame mounting reinforcing plate (3) arranged in the first closed cavity structure; the auxiliary frame comprises an auxiliary frame mounting sleeve (5), and the auxiliary frame mounting sleeve (5) sequentially penetrates through holes formed in an auxiliary frame mounting plate (4), an engine cabin side beam front section (1) and an auxiliary frame mounting reinforcing plate (3) and is fixedly connected with the auxiliary frame mounting plate, the engine cabin side beam front section and the auxiliary frame mounting reinforcing plate.
2. The automobile subframe mounting structure as claimed in claim 1, wherein: the front section (1) of the engine room boundary beam is U-shaped, one side of the front section is open and provided with a flange; the flange edge is lapped with welding spots of an engine cabin boundary beam outer plate (2) to form a first closed cavity structure.
3. The automobile subframe mounting structure according to claim 1 or 2, characterized in that: the auxiliary frame mounting reinforcing plate (3) is arranged in one side of the front section (1) of the engine cabin boundary beam and is in three-face lap joint with the front section (1) of the engine cabin boundary beam, and a first cavity structure is formed by welding spots.
4. The automobile subframe mounting structure according to claim 1 or 2, characterized in that: the auxiliary frame mounting plate (4) is arranged on the other side of the front section (1) of the engine room side beam, is overlapped with three sides of the front section (1) of the engine room side beam, is connected by welding spots to form a second cavity structure, and corresponds to the first cavity structure.
5. The automobile subframe mounting structure according to claim 1 or 2, characterized in that: the front section (1) of the engine room side beam is provided with a through hole, the diameter of the through hole is 1mm larger than the outer diameter of the auxiliary frame mounting sleeve (5), and the through hole corresponds to the through hole arranged on the auxiliary frame mounting plate (4) and the auxiliary frame mounting reinforcing plate (3).
6. The automobile subframe mounting structure as claimed in claim 5, wherein: the auxiliary frame installation sleeve (5) sequentially penetrates through the through holes formed in the auxiliary frame installation plate (4), the front section (1) of the engine cabin side beam and the auxiliary frame installation reinforcing plate (3), two ends of the auxiliary frame installation sleeve (5) are respectively overlapped with the auxiliary frame installation reinforcing plate (3) and the auxiliary frame installation plate (4), and the auxiliary frame installation sleeve is connected by adopting protection welding.
7. The automobile subframe mounting structure as claimed in claim 6, wherein: the middle part of the auxiliary frame mounting sleeve (5) is connected with a via hole on the front section (1) of the engine room side beam by adopting a protective welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322172052.4U CN220447970U (en) | 2023-08-14 | 2023-08-14 | Automobile auxiliary frame mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322172052.4U CN220447970U (en) | 2023-08-14 | 2023-08-14 | Automobile auxiliary frame mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220447970U true CN220447970U (en) | 2024-02-06 |
Family
ID=89732628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322172052.4U Active CN220447970U (en) | 2023-08-14 | 2023-08-14 | Automobile auxiliary frame mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220447970U (en) |
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2023
- 2023-08-14 CN CN202322172052.4U patent/CN220447970U/en active Active
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