CN209852425U

CN209852425U - Vehicle frame assembly

Info

Publication number: CN209852425U
Application number: CN201920413403.7U
Authority: CN
Inventors: 陆群; 关鑫
Original assignee: Beijing Changcheng Huaguan Automobile Technology Development Co Ltd
Current assignee: CH Auto Technology Co Ltd; Beijing Changcheng Huaguan Automobile Technology Development Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-27
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses a frame assembly, this frame assembly include frame and integrated link, wherein: the frame includes first frame buckle and second frame buckle, first frame buckle with along lock border welded connection behind the second frame buckle lock, integrated link utilizes connecting piece fixed connection to be in on the frame. The frame only has two parts needing to be welded, and the bracket providing the hard point is assembled through a connecting piece instead of welding. Not only the quantity of welding parts is reduced, but also the integrated connecting frame where the hard points are located is assembled in a non-welding mode, and the influence of welding on the accuracy of the hard points is reduced.

Description

Vehicle frame assembly

Technical Field

The utility model relates to a structural design, in particular to frame assembly.

Background

The frame assembly is a framework of a vehicle body, for example, a sub-frame in the frame assembly is a framework of a front axle and a rear axle. The auxiliary frame has the functions of supporting front and rear suspensions, an engine and a steering gear, and is connected with a vehicle body through four points or six points, so that vibration and noise are isolated, and the vibration and noise are reduced and directly enter a carriage. In addition, the auxiliary frame is used as an installation support for all parts of the front axle and the rear axle, and plays a key role in the modularized split charging of the whole vehicle assembly.

The frame assembly can be manufactured by stamping and welding a plurality of sheet metal parts to manufacture a main body part, and the purpose of the frame assembly is to lighten the vehicle body, but the welded parts are too many, and the hard point precision of the frame assembly is greatly influenced by welding. For example, the auxiliary frame in the frame assembly is formed by welding the end parts of a plurality of pipe profiles and sheet metal parts, the welding error is very large due to large welding amount, the welding error is +/-1.5-2 mm, the hard point design of the vehicle body is seriously influenced, and based on the requirements, the problem that the number of welding parts is too large is solved on the premise that the vehicle body is lightened, so that the technical problem to be solved in the prior art is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a frame assembly, this frame assembly include frame and integrated link, wherein:

the frame includes first frame buckle and second frame buckle, first frame buckle with along lock border welded connection behind the second frame buckle lock, integrated link utilizes connecting piece fixed connection to be in on the frame.

Optionally, the first frame buckle and/or the second frame buckle are an integrally formed sheet metal part.

Optionally, the integrated connecting frame is attached to the curved outer contour of the frame.

Optionally, the connector is a bolt.

Optionally, a first connecting through hole connected with the frame bolt is arranged on the integrated connecting frame;

a first positioning through hole is formed in the connection position, corresponding to the first connecting through hole, of the frame, a first bolt connecting table is oppositely arranged on the opposite side of the frame, which is located on the first positioning through hole, and a first threaded hole which is coaxially and oppositely arranged with the first positioning through hole is formed in the first bolt connecting table;

the bolt penetrates through the first positioning through hole through the first connecting through hole and is in threaded connection with the first threaded hole, and the end head of the bolt is in press fit fixation with the integrated connecting frame.

Optionally, a planar positioning groove is formed in the position, located at the first connecting through hole, of the frame, and the integrated connecting frame is horizontally placed into the planar positioning groove to limit the integrated connecting frame.

Optionally, a second bolting platform is arranged on the integrated connecting frame, and a second positioning through hole is arranged on the second bolting platform;

a third positioning through hole is formed in the position, corresponding to the connecting position of the second positioning through hole, of the frame, a third bolt connecting table is oppositely arranged on the opposite side of the frame, and a second threaded hole which is coaxially and oppositely arranged with the third positioning through hole is formed in the third bolt connecting table;

a bolt penetrates through the third positioning through hole from the second positioning through hole and then penetrates through the frame to be in threaded connection with the second threaded hole in the third bolt connecting table, and the end head of the bolt is pressed and fixed with the second bolt connecting table;

the second bolt connecting platform and the press-fit end face of the bolt are perpendicular to the axial direction of the second threaded hole.

Optionally, a plurality of mounting connection portions for connecting external parts are arranged on the integrated connection frame, the integrated connection frame is integrally formed, and the mounting connection portions are connected with the external parts along different degrees of freedom.

Optionally, the plurality of mounting connections are a stabilizer bar mounting connection and a swing arm mounting connection.

Optionally, the number of the integrated connecting frames is two, and the two integrated connecting frames are symmetrically arranged along the geometric center line of the frame.

Based on the above embodiment, the integrated connecting frame is fixedly connected to the frame by using the connecting piece. The frame only has two parts needing to be welded, and the bracket providing the hard point is assembled through a connecting piece instead of welding. Not only the quantity of welding parts is reduced, but also the integrated connecting frame where the hard points are located is assembled in a non-welding mode, and the influence of welding on the accuracy of the hard points is reduced.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

FIG. 1 is a schematic view of an overall assembly structure of a frame assembly according to an embodiment;

FIG. 2 is a schematic view of an embodiment of a frame assembly and integrated attachment bracket attachment hole configuration;

FIG. 3 is a side view of the frame assembly of one embodiment;

FIG. 4 is a schematic diagram of an integrated attachment frame according to one embodiment;

description of the reference symbols

1 vehicle frame

11 first vehicle frame buckle

12 second frame buckle

13 first positioning through hole

14 first bolt connection table

15 first screw hole

16 third positioning through hole

17 third bolted connection platform

18 second screw hole

19 plane locating slot

2 Integrated connecting frame

21 mounting connection part

211 stabilizer bar mounting connection part

212 swing arm mounting connection part

22 first connection through hole

23 second bolting station

24 second positioning through hole

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled.

In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree and order of importance, the premise that each other exists, and the like.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.

FIG. 1 is a schematic view of the overall structural assembly of the frame assembly in one embodiment. As shown in fig. 1, in one embodiment, the present application provides a vehicle frame assembly comprising a vehicle frame 1 and an integrated attachment frame 2, wherein:

the frame 1 further comprises a first frame buckle plate 11 and a second frame buckle plate 12, the first frame buckle plate 11 and the second frame buckle plate 12 are buckled and then are connected with each other along the buckling edge in a welding mode, and the integrated connecting frame 2 is fixedly connected to the frame 1 through a connecting piece.

The utility model provides an only use two frame buckle plates in this embodiment, first frame buckle plate 11 and the second frame buckle plate 12 concatenation lock carry out the fashioned concrete technical scheme of seam, its aim at descends the minimum with the welding volume at the prerequisite that accords with intensity and structural requirement, the border behind welded position only first frame buckle plate 11 and the second frame buckle plate 12 lock in this embodiment, and utilize the connecting piece to be connected fixedly integrated link 2 and 1 separation design of frame, integrated link provides the hard spot of being connected with external piece, integrated link 2 adopts the connecting piece assembly with frame 1, and non-welding. Therefore, the number of the welding parts is reduced, the integrated connecting frame where the hard points are located is assembled in a non-welding mode, and the influence of welding on the accuracy of the hard points is reduced.

In one embodiment, the first frame gusset 11 and/or the second frame gusset 12 are integrally formed sheet metal.

In this embodiment, the first frame gusset 11 and/or the second frame gusset 12 are designed as an integrally formed sheet metal part, and welding of a plurality of pipe profiles and sheet metal parts is not adopted. On one hand, welding procedures are greatly reduced, production cost is reduced, and meanwhile deformation of the frame 1 caused by welding is also reduced. On the other hand, in the production process, the integrally formed sheet metal parts can be obtained by die stamping, and because only two sheet metal parts at most are provided, the number of dies for production is greatly reduced. In addition, the stress of the sheet metal part adopted by the first frame buckle plate 11 and/or the second frame buckle plate 12 is more uniform, and the installation position on the die is more accurate.

In one embodiment, the integrated connecting frame 2 is attached to the curved outer contour of the frame 1.

In this embodiment, the frame 1 has an irregular outer contour based on the requirement of strength. The contact surface of the corresponding integrated connecting frame 2 and the frame 1 should also be designed into a corresponding curved surface so as to be attached to the frame 1, and the two are more stable when being fixed, thereby avoiding the relative displacement of the two.

In one embodiment, the connector is a bolt.

In the embodiment, a specific implementation manner of fixedly connecting the integrated connecting frame 2 and the frame 1 is provided. The influence of welding deformation on the integrated connecting frame 2 can be completely isolated by adopting a bolt connection fixing mode. Because in the process of actual assembly, weld first frame buckle 11 and second frame buckle 12 earlier, the seam is not influenced integrated link 2 this moment, and after the welding was accomplished, wait that frame 1 cools off, again carry out fixed connection with integrated link 2 and frame 1. From the above-described assembling process, it is apparent that the heat generated in the soldering step does not affect the integrated connection frame 2.

Fig. 2 is a schematic view of a connection hole structure of a frame assembly and an integrated connection frame in one embodiment, and fig. 3 is a schematic view of an opposite side structure of an integrated assembly structure of the frame assembly in one embodiment, as shown in fig. 2 and fig. 3:

in one embodiment, the integrated connecting frame 2 is provided with a first connecting through hole 22 which is connected with the frame 1 through a bolt;

a first positioning through hole 13 is formed in the connection position, corresponding to the first connection through hole 22, of the frame 1, a first bolt connection table 14 is oppositely arranged on the opposite side, located at the first positioning through hole 13, of the frame 1, and a first threaded hole 15 which is coaxially and oppositely arranged with the first positioning through hole 13 is formed in the first bolt connection table 14;

the bolt penetrates through the first positioning through hole 13 through the first connecting through hole 22 to be in threaded connection with the first threaded hole 15, and the end head of the bolt is pressed and fixed with the integrated connecting frame 2.

In this embodiment, a concrete structure for realizing bolted connection is provided, because first car frame buckle 11 and second car frame buckle 12 are the sheet metal component, that is to say its panel beating thickness receives the restriction of mould punching press, and threaded connection is in order to satisfy the requirement of pretightning force when connecting, and the attack depth of screw thread needs to have the predetermined degree of depth simultaneously.

On the other hand, the frame not only plays a role in connection, but also needs to play a role in supporting stress, so the connection strength requirement of the frame 1 and the integrated connecting frame 2 is high. Although the threading can be directly performed on the sheet metal part, the threading simply using the first frame gusset plate 11 and the second frame gusset plate 12 cannot reach the predetermined depth of the threading due to the limitation of the plate thickness, so the first threaded hole 15 is provided on the first bolting platform 14 to satisfy the predetermined depth of the threading by adopting the structure of the embodiment.

In an embodiment, the frame 1 is provided with a plane positioning groove 19 at the connecting through hole 22, and the integrated connecting frame 2 is laid in the plane positioning groove 19 to limit the integrated connecting frame 2.

Because the outer contour of the frame 1 is designed to be a curved surface, when the frame 1 and the integrated connecting frame 2 are attached to each other, a gap is easily generated, and the gap can cause the loose connection between the frame 1 and the integrated connecting frame. Under the operating mode environment of long-term vibration, can cause the not hard up of bolted connection, in order to prevent that the bolt that causes under the long-term vibration environment is not hard up, be provided with plane constant head tank 19 in threaded connection department to make the contact surface between them closely laminate.

Fig. 4 is a schematic structural diagram of an integrated connection frame in one embodiment. As shown in fig. 4, in an embodiment, a second bolting platform 23 is disposed on the integrated connecting frame 2, and a second positioning through hole 24 is disposed on the second bolting platform 23;

a third positioning through hole 16 is formed in the connection position, corresponding to the second positioning through hole 24, of the frame 1, a third bolt connection platform 17 is oppositely arranged on the opposite side, located on the third positioning through hole 16, of the frame 1, and a second threaded hole 18 which is coaxially and oppositely arranged with the third positioning through hole 16 is formed in the third bolt connection platform 17;

the bolt penetrates through the third positioning through hole 16 through the second positioning through hole 24 and then penetrates through the frame 1 to be in threaded connection with the second threaded hole 18 on the third bolt connecting table 17, and the end head of the bolt is pressed and fixed with the second bolt connecting table 23;

the press-fit end face of the second bolt connecting table 23 and the bolt is arranged perpendicular to the axial direction of the second threaded hole 18.

In this example, another specific implementation of a bolted connection is provided. The embodiment is mainly applied to the condition that when the bolt head on the integrated connecting frame 2 is pressed with the frame 1, the contact surface of the bolt head is not completely vertical to the axial direction of the thread. It can be seen from the figure that if the bolt head penetrates into the frame 1 through the integrated connecting frame 2, the pressing surface of the bolt head is difficult to be perpendicular to the axial direction of the thread, and the bolt head can be loosened under the working condition of long-term vibration, but the loosening condition cannot occur if the embodiment is adopted.

In an embodiment, the integrated connecting frame 2 is provided with a plurality of mounting connecting portions 21 for connecting external components, the integrated connecting frame 2 is integrally formed, and the plurality of mounting connecting portions 21 are connected with the external components along different degrees of freedom.

In the present embodiment, a specific structure of the integrated connecting frame 2 is provided, and the mounting connecting portion 21 is used for connecting with an external component, such as a stabilizer bar or a swing arm. The external connector needs to be connected in a very precise positioning mode, and the design of the hard points of the external connector is directly related to the consistency of vehicle leaving a factory. The frame welding back can't be accurate at all provides the hard spot design, but its precision then can fully be guaranteed in the machining, consequently adopts integrated into one piece's integrated link 2, processes through the machining, can ensure the machining precision. In addition, as can be seen from the figure, the freedom degrees of the connecting axes of the plurality of mounting connecting parts 21 are different, and are also different from the connecting axes of the mounting holes of the frame 1, as shown in a1, a2 and A3 in the figure, and the deformation generated after welding in such a complicated spatial position relation cannot meet the design requirement at all. The integrated connecting frame 2 is cast by aluminum alloy, for example, aluminum alloy 6082 can be adopted, and the weight is lighter. More importantly, the mounting connection part 21 for mounting and connecting the external element is completely independent from the frame 1 and is arranged on the integrated connecting frame 2. At this time, the welding of the first frame gusset plate 11 and the second frame gusset plate 12 will not have any influence on the welding deformation of the mounting connection portion 21 on the integrated connecting frame 2.

In one embodiment, the plurality of mounting connections 21 are a stabilizer bar mounting connection 211 and a swing arm mounting connection 212.

In the present embodiment, a specific arrangement manner of the mounting connection portion 21 is provided.

In one embodiment, the two integrated connecting frames 2 are symmetrically arranged along the geometric center line of the frame 1.

In this embodiment, the integrated connecting frame 2 can be arranged symmetrically left and right along the geometric center line of the frame 1, and by adopting the mode, the stress is better.

The above list of details is only for the purpose of the application of feasible embodiments, and not to limit the scope of protection of the invention, all the equivalent embodiments or modifications, such as the combination, division or repetition of features, which do not depart from the technical spirit of the invention, should be included in the scope of protection of the invention.

Claims

1. A frame assembly, characterized in that it comprises a frame (1) and an integrated connecting frame (2), wherein:

frame (1) is including first frame buckle (11) and second frame buckle (12), first frame buckle (11) with along lock border welded connection behind second frame buckle (12) lock, integrated link (2) utilize connecting piece fixed connection in on frame (1).

2. A frame assembly according to claim 1, wherein the first frame gusset (11) and/or the second frame gusset (12) is an integrally formed sheet metal part.

3. Frame assembly according to claim 1, characterized in that the integrated link (2) is arranged in conformity with the curved outer contour of the frame (1).

4. A frame assembly according to any of claims 1 to 3, wherein said connector is a bolt.

5. A frame assembly according to claim 4, characterized in that said integrated connection frame (2) is provided with a first connection through hole (22) for bolting with said frame (1);

a first positioning through hole (13) is formed in the connection position, corresponding to the first connecting through hole (22), of the frame (1), a first bolt connecting table (14) is oppositely arranged on the opposite side, located on the first positioning through hole (13), of the frame (1), and a first threaded hole (15) which is coaxially and oppositely arranged with the first positioning through hole (13) is formed in the first bolt connecting table (14);

the bolt penetrates through the first positioning through hole (13) through the first connecting through hole (22) and is in threaded connection with the first threaded hole (15), and the end head of the bolt is pressed and fixed with the integrated connecting frame (2).

6. A frame assembly according to claim 5, characterized in that the frame (1) is provided with a planar positioning slot (19) at the first connection through hole (22), and the integrated connecting frame (2) is laid into the planar positioning slot (19) to limit the integrated connecting frame (2).

7. A frame assembly according to claim 4, characterized in that said integrated connection frame (2) is provided with a second bolting platform (23), said second bolting platform (23) is provided with a second positioning through hole (24);

a third positioning through hole (16) is formed in the position, corresponding to the connecting position of the second positioning through hole (24), of the frame (1), a third bolt connecting table (17) is oppositely arranged on the opposite side of the frame (1) located at the third positioning through hole (16), and a second threaded hole (18) which is coaxially and oppositely arranged with the third positioning through hole (16) is formed in the third bolt connecting table (17);

a bolt penetrates through the third positioning through hole (16) through the second positioning through hole (24) and then penetrates through the frame (1) to be in threaded connection with the second threaded hole (18) on the third bolt connecting table (17), and the end head of the bolt is pressed and fixed with the second bolt connecting table (23);

the second bolt connecting platform (23) and the press-fit end face of the bolt are perpendicular to the axial direction of the second threaded hole (18).

8. Frame assembly according to claim 1, characterized in that said integrated link (2) is provided with a plurality of mounting links (21) for connecting external components, said integrated link (2) being integrally formed, said plurality of mounting links (21) being connected to external components along different degrees of freedom.

9. A frame assembly according to claim 8, wherein said plurality of mounting connections (21) are a stabilizer bar mounting connection (211) and a swing arm mounting connection (212).

10. Frame assembly according to claim 1, characterized in that said integrated connection brackets (2) are two and are arranged symmetrically along the geometric centre line of said frame (1).