CN219317392U - Sleeve nut for vehicle body assembly, vehicle body assembly and vehicle - Google Patents
Sleeve nut for vehicle body assembly, vehicle body assembly and vehicle Download PDFInfo
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- CN219317392U CN219317392U CN202320796158.9U CN202320796158U CN219317392U CN 219317392 U CN219317392 U CN 219317392U CN 202320796158 U CN202320796158 U CN 202320796158U CN 219317392 U CN219317392 U CN 219317392U
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Abstract
The utility model relates to the technical field of vehicles, in particular to a sleeve nut for a vehicle body component, the vehicle body component and a vehicle, and aims to solve the problem that the connection performance and the corrosion resistance of the sleeve nut are reduced when arc welding connection is adopted. To this end, a bushing nut for a vehicle body component of the present utility model includes: the connecting boss is suitable for being welded and connected with the vehicle body component; after the welded connection, the connection boss can form an annular sealing layer. In the vehicle body assembly of the present utility model, the above-described sleeve nut is welded to the floor member. The vehicle comprises the vehicle body component. The sleeve nut can be welded with a vehicle body component through the connecting boss. The heat affected zone of the connecting mode is smaller, the connecting performance and the fatigue resistance are better, and the damage to the plating layer is smaller, so that the corrosion resistance of the welding position is improved.
Description
Technical Field
The utility model relates to the technical field of vehicles, and particularly provides a sleeve nut for a vehicle body assembly, the vehicle body assembly and a vehicle.
Background
At present, a sub-frame and a bottom plate member of a vehicle are usually connected by a sleeve nut and a bolt. The sleeve nut meets the requirements of corrosion resistance when meeting the connection performance and simultaneously being used as a functional part of a wet area of a vehicle.
The sleeve nut and the base plate member are typically joined by arc welding. Because the arc welding process has a certain probability of generating air holes, the connection performance is adversely affected. Even the bolt can not be connected with the threaded hole of the nut when the arc welding process quality is poor. And because the heat affected zone of the arc welding process is larger, the coating of the sleeve nut and the coating of the bottom plate piece are damaged greatly, and the post-corrosion resistance of the vehicle is influenced greatly.
Accordingly, there is a need in the art for a bushing nut for a body assembly, and a vehicle that address the above-described problems.
Disclosure of Invention
The utility model aims to solve the technical problems, namely, the anti-corrosion problem of the connecting structure of the sleeve nut and the bottom plate piece.
In a first aspect, the present utility model provides a bushing nut for a vehicle body assembly, the bushing nut comprising:
a first connection portion provided with a screw connection hole;
a second connecting part connected to the first connecting part, the second connecting part being provided with a connecting boss adapted to be welded to the vehicle body component;
after the sleeve nut is welded with the body component, the connecting boss can form an annular sealing layer.
In the specific embodiment of the sleeve nut, a preset loop is arranged on the second connecting part, and a plurality of connecting bosses are uniformly distributed on the preset loop, so that a plurality of welded connecting bosses can form an annular sealing layer; or alternatively
The shape of the connecting boss is annular, so that the welded connecting boss can form an annular sealing layer.
In the specific embodiment of the above sleeve nut, the connection end of the connection boss is connected to the second connection portion, the protruding end of the connection boss protrudes from the outer wall of the second connection portion, and the area of the protruding end is smaller than that of the connection end.
In the specific embodiment of the sleeve nut, the shape of the connecting boss is a semi-cylinder or a triangular prism.
In a specific embodiment of the above sleeve nut, the second connecting portion is cylindrical in shape;
the first end face of the second connecting part is provided with the connecting boss; and/or
The second end face of the second connecting part is provided with the connecting boss.
In a second aspect, the present utility model provides a vehicle body assembly comprising:
a floor member;
in the sleeve nut, the sleeve nut is welded and connected to the bottom plate member.
In a specific embodiment of the above vehicle body assembly, the floor member is provided with a through hole;
when the sleeve nut is welded to the base member, the first connecting portion is provided through the through hole.
In the above-described vehicle body assembly embodiment, the first connecting portion is provided protruding from the floor member when the sleeve nut is welded to the floor member.
In a specific embodiment of the above vehicle body assembly, the vehicle body assembly further comprises:
the auxiliary frame is connected to the bottom plate piece through a bolt, and the bolt is connected with the threaded connection hole through threads.
In a third aspect, the present utility model provides a vehicle comprising the vehicle body assembly described above.
Under the condition of adopting the technical scheme, the sleeve nut is provided with the connecting boss, and the sleeve nut can be welded and connected with the vehicle body component. When in welding, pressure is firstly applied to enable the boss of the sleeve nut to be in contact with the surface of the vehicle body component; applying current to the sleeve nut and the vehicle body assembly, wherein the current is concentrated to the contact position of the connecting boss and the vehicle body assembly so as to heat and melt the part; and finally, cutting off the current, and cooling and crystallizing the melted part to ensure that the sleeve nut is fixedly connected with the vehicle body component, thereby completing the welding connection. The sleeve nut is connected with the automobile body component through welding, the heat affected zone of the connecting mode is smaller, the connecting performance and the fatigue resistance are better, and the damage to a plating layer is smaller, so that the corrosion resistance of a welding position is improved. And the connection boss is set up and is being welded the connection back, and the connection boss can form an annular sealing layer, avoids outside water or other corrosive substance to get into the welded area, protects inside welded structure, improves sleeve nut and welded connection structure's anticorrosion effect.
Further, the connecting end of the connecting boss is connected to the second connecting portion of the sleeve nut, the connecting boss protrudes out of the outer wall of the second connecting portion, and the protruding end area is smaller than the connecting end area. When the boss with the structure is welded, current can be concentrated to the protruding end, so that the temperature at the tip end is quickly increased, and the connecting boss is quickly melted.
Further, the second connecting portion is cylindrical in shape, and connecting bosses can be disposed on both the first end face and the second end face of the second connecting portion. The sleeve nut can be welded and connected through the connecting bosses at different positions to form different connecting modes, so that the connecting modes of the sleeve nut are more flexible. Still further, the body assembly includes a floor member having a through-hole provided therein. When the sleeve nut is welded and connected to the bottom plate piece, the first connecting portion penetrates through the through hole. The connection strength of the connection mode is higher.
Drawings
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a first perspective structure of a sleeve nut provided by the present utility model;
FIG. 2 is a schematic view of a second perspective structure of a sleeve nut provided by the present utility model;
FIG. 3 is a schematic structural view of a semi-cylindrical connecting boss provided by the present utility model;
fig. 4 is a schematic structural view of a triangular prism-shaped connection boss provided by the utility model;
FIG. 5 is a schematic view of the structure of the annular connecting boss provided by the utility model;
fig. 6 is a schematic view of a connection structure between a bottom plate member and a subframe according to a first embodiment of the present utility model;
fig. 7 is a schematic structural diagram of connection between a floor member and a subframe according to a second embodiment of the present utility model.
List of reference numerals:
1. a first connection portion; 11. a threaded connection hole;
2. a second connecting portion; 21. a connecting boss; 22. a ring-shaped sealing layer; 23. a first end face; 24. a second end face;
3. a floor member; 4. an auxiliary frame; 5. and (5) a bolt.
Detailed Description
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
In order to solve the problem of corrosion prevention by adopting a sleeve nut and bottom plate piece connecting structure, the embodiment discloses a vehicle, and the vehicle comprises a vehicle body component which is used for providing support and protection for the vehicle. The body assembly comprises a sleeve nut, a floor member 3, a subframe 4 and bolts 5.
Referring to fig. 1 and 2, the sleeve nut includes a first coupling part 1 and a second coupling part 2. The first connection part 1 is provided with a threaded connection hole 11, the threaded connection hole 11 being used for connecting a bolt 5 or other threaded connection. Specifically, the first connecting portion 1 has a tubular shape, and the inner hole of the circular tube is a threaded connecting hole 11. The second connecting portion 2 is connected to the first connecting portion 1, and one end of the threaded connecting hole 11 is opened in the second connecting portion 2. Specifically, the second connecting portion 2 is in a flat cylindrical shape, and the second connecting portion 2 is connected to one end of the circular tubular first connecting portion 1, so that the first connecting portion 1 and the second connecting portion 2 form a T-shaped structure. The cylindrical second connecting portion 2 includes a first end surface 23 and a second end surface 24, and one end opening of the threaded connecting hole 11 is provided on the first end surface 23.
The second connecting portion 2 is provided with a connecting boss 21, and the connecting boss 21 is adapted to be welded with the bottom plate member 3. Specifically, the first connection portion 1, the second connection portion 2, and the connection boss 21 are all made of the same material, and are integrally formed. During welding, pressure is firstly applied to enable the boss of the sleeve nut to be in contact with the surface of the bottom plate piece 3; then, current is applied to the sleeve nut and the bottom plate member 3, and the current is concentrated to the contact position of the connecting boss 21 and the bottom plate member 3, so that the part of the connecting boss 21 and the bottom plate member 3 contacting the connecting boss 21 is heated and melted and pressed into a whole; finally, the current is cut off, and the melted portion is cooled and crystallized to connect and fix the sleeve nut with the bottom plate member 3, thereby completing the welded connection. Compared with the arc welding mode in the prior art, the heat affected zone of the capacitor energy storage welding is smaller, so that the connection performance and the fatigue resistance are better, and the damage to a plating layer is smaller, so that the corrosion resistance of a welding part is improved.
Specifically, the connection boss 21 includes a connection end and a protruding end, the connection end is connected to the second connection part 2, the protruding end protrudes from the outer wall of the second connection part 2, and the area of the protruding end is smaller than that of the connection end. In other words, the connection boss 21 protrudes from the second connection part 2, and forms a tip at the protruding end. During welding, current can be concentrated to the tip to rapidly raise the temperature at the tip, and the connection boss 21 can be rapidly melted, thereby accelerating the welding speed.
Preferably, the connection boss 21 is semi-cylindrical (as shown in fig. 3) or triangular prism-shaped (as shown in fig. 4). The convex arc surface of the semi-cylindrical connecting boss 21 serves as a convex end protruding from the outer wall of the second connecting portion 2. One side edge of the triangular prism-shaped connection boss 21 serves as a protruding end protruding from the outer wall of the second connection part 2. The two shapes of the connecting boss 21 are in a line with the contact part of the protruding end and the vehicle body component when the vehicle body component is connected, so that the effect of concentrating current during welding is better.
The connection boss 21 may be provided on the first end surface 23 (as shown in fig. 2) of the second connection portion 2, may be provided on the second end surface 24 (as shown in fig. 1), and may be provided on both the first end surface 23 and the second end surface 24.
The arrangement of the connecting projections 21 on the second connecting portion 2 is described in detail below according to two preferred arrangements.
Referring to fig. 1 and 2, the first arrangement is that a preset loop is provided on the second connection part 2, and a plurality of connection bosses 21 are uniformly arranged on the preset loop. After welding, the plurality of connection bosses 21, which are crystallized by melting and cooling, are connected to form an annular sealing layer 22. The annular sealing layer 22 can block external water or other corrosive substances, protect the internal welding structure and the threaded connection hole 11, and improve the anti-corrosion effect of the sleeve nut.
Referring to fig. 5, the second arrangement is that the connection boss 21 is annular. After welding, the connection boss 21 of this arrangement can also form the annular sealing layer 22.
Further, the connection boss 21 on the first end surface 23 is disposed at or near the edge of the first end surface 23, so that the connection boss 21 will not enter the threaded connection hole 11 after melting and cooling crystallization, and the connection effect of the threaded connection hole 11 and the bolt 5 is prevented from being affected. The connection boss 21 on the second end face 24 is provided at or near the edge of the second end face 24 so that the connection boss 21 is not adhered to the outer wall of the first connection portion 1 after being melted and cooled and crystallized.
The sleeve nut is welded to the base member 3. Specifically, the sleeve nut is welded with the bottom plate member 3 through a capacitive energy storage welder, and the structure of the capacitive energy storage welder is the same as that of the capacitive energy storage welder in the prior art, and the specific structure thereof is not described herein. The welding speed of the connection mode is faster than that of the arc welding connection in the prior art, and the connection efficiency can be improved. And the material consumption is not needed, and the special tooling is not needed for fixing, so that the production cost is reduced, and the weight of the vehicle body component is reduced.
The subframe 4 is connected to the floor member 3 by a bolt 5, and the bolt 5 is screwed to a threaded connection hole 11 of a sleeve nut.
The coupling structure of the sleeve nut, the bolt 5, the floor member 3 and the sub-frame 4 will be described below in connection with two embodiments.
Embodiment one:
referring to fig. 6, the base member 3 is provided with a first through hole through which the first coupling portion 1 of the sleeve nut passes to make the coupling of the sleeve nut with the base member 3 more stable. The second end surface 24 of the sleeve nut is provided with a connecting boss 21, and the sleeve nut is welded with the bottom plate member 3 through the connecting boss 21. The subframe 4 is provided with a second through hole, and the bolt 5 passes through the second through hole and is in threaded connection with the threaded connection hole 11 of the sleeve nut, so that the bottom plate member 3 and the subframe 4 are fixedly connected. The second connecting part 2 of the sleeve nut of the connecting structure is clamped and fixed by the bottom plate piece 3 and the auxiliary frame 4, so that the sleeve nut is connected more firmly. The advantage of this embodiment is that the coupling strength of the sleeve nut is high.
Embodiment two:
referring to fig. 7, a coupling boss 21 is provided on a first end surface 23 of the sleeve nut, and the sleeve nut and the base member 3 are welded to each other by the coupling boss 21. The bottom plate piece 3 is provided with a first through hole, and the auxiliary frame 4 is provided with a second through hole. The bolt 5 sequentially passes through the second through hole and the first through hole and is in threaded connection with the threaded connection hole 11 of the sleeve nut, so that the bottom plate member 3 and the subframe 4 are clamped and fixed by the nut of the bolt 5 and the second connection portion 2 of the sleeve nut.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.
Claims (10)
1. A bushing nut for a vehicle body assembly, comprising:
a first connection part (1) provided with a threaded connection hole (11);
a second connecting part (2) connected to the first connecting part (1), wherein a connecting boss (21) suitable for welding and connecting the vehicle body component is arranged on the second connecting part (2);
the connecting boss (21) can form an annular sealing layer (22) after the sleeve nut is welded with the vehicle body component.
2. Sleeve nut according to claim 1, characterized in that the second connection part (2) is evenly provided with a plurality of connection bosses (21).
3. Sleeve nut according to claim 2, characterized in that a plurality of the connecting projections (21) are arranged in a ring shape.
4. Sleeve nut according to claim 1, characterized in that the connection end of the connection boss (21) is connected to the second connection part (2), the protruding end of the connection boss (21) protrudes out of the outer wall of the second connection part (2), the area of the protruding end being smaller than the area of the connection end.
5. Sleeve nut according to claim 4, characterized in that the connecting boss (21) is semi-cylindrical or triangular prism shaped.
6. Sleeve nut according to claim 1, characterized in that the second connection part (2) is cylindrical in shape;
the first end face (23) of the second connecting part (2) is provided with the connecting boss (21); and/or
The second end face (24) of the second connecting part (2) is provided with the connecting boss (21).
7. A vehicle body assembly, comprising:
a floor member (3);
sleeve nut according to any one of claims 1-6, which sleeve nut is welded to the base piece (3).
8. The vehicle body assembly according to claim 7, characterized in that the floor member (3) is provided with a through hole;
when the sleeve nut is welded to the base member (3), the first connecting portion (1) is provided through the through hole.
9. The vehicle body assembly of any one of claims 7-8, further comprising:
the auxiliary frame (4) is connected to the bottom plate piece (3) through a bolt (5), and the bolt (5) is connected to the threaded connection hole (11) in a threaded mode.
10. A vehicle comprising a body assembly as claimed in any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796158.9U CN219317392U (en) | 2023-04-06 | 2023-04-06 | Sleeve nut for vehicle body assembly, vehicle body assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796158.9U CN219317392U (en) | 2023-04-06 | 2023-04-06 | Sleeve nut for vehicle body assembly, vehicle body assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317392U true CN219317392U (en) | 2023-07-07 |
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ID=87021963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320796158.9U Active CN219317392U (en) | 2023-04-06 | 2023-04-06 | Sleeve nut for vehicle body assembly, vehicle body assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219317392U (en) |
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2023
- 2023-04-06 CN CN202320796158.9U patent/CN219317392U/en active Active
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