A front longitudinal beam assembly for a vehicle and a processing method

Abstract

The application belongs to the technical field of vehicle accessories, and particularly relates to a front longitudinal beam assembly for a vehicle and a processing method. It solves the defects of unreasonable design in the prior art. The front longitudinal beam assembly for the vehicle comprises a first main body and a second main body connected with the first main body through a connecting structure, two shaft sleeves with parallel shaft center lines are arranged on the first main body, the connecting structure at least comprises a central connecting piece connecting the first main body and the second main body, and the connecting structure further comprises a side metal plate member connecting one side of the first main body, the other side of the second main body and the side of the central connecting piece respectively, the side metal plate member at least has an intermediate connecting part which is obliquely distributed with the shaft center line of the shaft sleeve and is connected with the central connecting piece, a through hole is arranged on the intermediate connecting part, and the shaft center line of the shaft sleeve coincides with the shaft center line of the through hole. The application has the advantages of ensuring coaxiality.

Description

Technical Field

[0001] This invention belongs to the field of vehicle parts technology, and in particular relates to a front longitudinal beam assembly for vehicles and its processing method. Background Technology

[0002] Vehicles such as off-road vehicles have a front longitudinal beam assembly. Conventional or existing front longitudinal beam assemblies are mostly made of sheet metal and mainly consist of a first body and a second body. The two are welded together and although reinforcement blocks are set at their respective joints, the torsional strength of this structure is still relatively poor. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a front longitudinal beam assembly for vehicles and its processing method that can solve the aforementioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions: A front longitudinal beam assembly for a vehicle includes a first body and a second body connected to the first body via a connecting structure. Two bushings with parallel centerlines are provided on the first body. The connecting structure includes at least a central connecting member connecting the first body and the second body, and further includes side sheet metal members connecting one side of the first body, the other side of the second body, and the central connecting member. The side sheet metal members have at least an intermediate connecting portion that is inclined to the centerline of the bushings and connected to the central connecting member. A through hole is provided in the intermediate connecting portion, and the centerline of the bushings coincides with the centerline of the through hole.

[0005] In the aforementioned vehicle front longitudinal beam assembly, there are two side sheet metal components that are symmetrically distributed around the axis of the central connecting member, and each side sheet metal component has a through hole.

[0006] In the aforementioned vehicle front longitudinal beam assembly, the intermediate connecting portion has a first side and a second side distributed opposite to each other. The side sheet metal component further includes a first connecting portion and a second connecting portion. The first connecting portion is connected to the first side of the intermediate connecting portion. The first connecting portion and the intermediate connecting portion are arranged at an angle, and the side of the first connecting portion away from the intermediate connecting portion is connected to the first body. The second connecting portion is connected to the second side of the intermediate connecting portion. The second connecting portion and the intermediate connecting portion are arranged at an angle, and the side of the second connecting portion away from the intermediate connecting portion is connected to the second body.

[0007] In the aforementioned vehicle front longitudinal beam assembly, the second connecting portion near the centering connector also has a side connecting portion that is angled to the second connecting portion and connected to the centering connector.

[0008] In the aforementioned vehicle front longitudinal beam assembly, the side connection portion has a triangular or trapezoidal structure, and the width of the side connection portion gradually decreases from the middle connection portion toward the second connection portion.

[0009] In the aforementioned vehicle front longitudinal beam assembly, an angle greater than or equal to 90° is formed between the two side connecting portions.

[0010] In the aforementioned front longitudinal beam assembly for a vehicle, the central connecting member is cylindrical, and the intermediate connecting portion has an arc-shaped matching port that conforms to the outer cylindrical surface of the central connecting member. The side connecting portion away from the second connecting portion is in tangential contact with the outer cylindrical surface of the central connecting member. The central connecting member and the side connecting portion are welded together, and the arc-shaped matching port is welded together with the central connecting member.

[0011] In the aforementioned vehicle front longitudinal beam assembly, the first main body includes at least a first transverse member that is perpendicularly connected to the central connecting member, and the first connecting portion and the first transverse member are in tangential contact and are welded together.

[0012] In the aforementioned vehicle front longitudinal beam assembly, the second main body includes at least a second transverse member that is perpendicularly connected to the central connecting member, and the second connecting portion and the second transverse member are in tangential contact and are welded together.

[0013] This application also provides a method for processing a front longitudinal beam assembly for a vehicle as described above, the method comprising the following steps: S1. Prepare a first main body, a connecting structure, a second main body, and a bushing. The connecting structure includes a central connecting piece and side sheet metal components. S2. Fix the second main body, center the first main body with the bushing and fix the first main body, and make the centering connector contact the first main body and the second main body in advance, weld on the contact surface of the first main body and the centering connector, and weld on the contact surface of the second main body and the centering connector to obtain a welded semi-finished product; S3. Using the bushing as a reference and fixing the welded semi-finished product, the side sheet metal component is respectively contacted with the first main body, the central connecting member and the second main body in S2. The through holes on the bushing and the side sheet metal component are passed through by the coaxiality constraint axis. Finally, the side sheet metal component is welded to the first main body, the central connecting member and the second main body, and the bushing is welded to the first main body, thus obtaining the front longitudinal beam assembly for the vehicle.

[0014] Compared with existing technologies, the advantages of this application are: The through-hole and bushing of the connecting structure serve to precisely position the front longitudinal beam assembly for the vehicle. That is, during the installation process, a positioning pin needs to pass through the bushing and the through-hole in sequence, while simultaneously fixing the first and second main bodies.

[0015] The side sheet metal components serve a positioning function, and also enhance the structural strength of the different sides of the first and second main bodies, as well as the central connecting parts, such as improving torsional resistance. Furthermore, this structural design of the side sheet metal components ensures coaxiality of the bushing and through hole after machining, meaning that their centerlines coincide. Attached Figure Description

[0016] Figure 1 This is a first-view three-dimensional structural diagram of a front longitudinal beam assembly for vehicles provided by the present invention.

[0017] Figure 2 This is a second-view three-dimensional structural diagram of a front longitudinal beam assembly for vehicles provided by the present invention.

[0018] Figure 3 This is a third-view three-dimensional structural diagram of a front longitudinal beam assembly for vehicles provided by the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the side sheet metal component provided by the present invention.

[0020] Figure 5 This is a schematic diagram of the state of a front longitudinal beam assembly for a vehicle before the coaxiality constraint shaft is fitted, as provided by the present invention.

[0021] In the figure, there are: first main body 1, first transverse component 10, connecting structure 2, central connecting component 20, side sheet metal component 21, middle connecting part 210, arc-shaped matching port 2100, through hole 211, first connecting part 212, second connecting part 213, side connecting part 214, space 215, second main body 3, second transverse component 30, vertical component 31, functional sheet metal component 32, bushing 4, and coaxiality constraint shaft 5. Detailed Implementation

[0022] The following are specific embodiments of the invention, which are described in conjunction with the accompanying drawings. The technical solution of the invention will be further described, but the invention is not limited to these embodiments.

[0023] like Figure 1 As shown, a front longitudinal beam assembly for a vehicle includes a first body 1, a connecting structure 2, and a second body 3. The first body 1 and the second body 3 are connected by the connecting structure 2, and all three are made of metal.

[0024] Two bushings 4 with parallel axis lines are provided on the first body 1. Two positioning slots for matching bushings 4 are provided on the first body 1. At least part of the bushing 4 is inserted into the positioning slot and the two are finally welded together.

[0025] like Figures 1-2 As shown, the connecting structure 2 includes at least a central connecting member 20 connecting the first main body 1 and the second main body 3. The central connecting member 20 is made of metal tubing. At both ends of the central connecting member 20, there are fitting ports for connecting the first main body 1 and the second main body 3, such as two symmetrically arranged arc-shaped notches, and in the thickness direction of the front longitudinal beam assembly for the vehicle. The connecting structure 2 also includes a side sheet metal component 21 connecting one side of the first main body 1, the other side of the second main body 3 and the central connecting member 20. The side sheet metal component 21 is a sheet metal bending component, which has a part arranged along the first axis direction and a remaining part arranged along the second axis direction. The first axis direction and the second axis direction are perpendicular.

[0026] Here, one side of the first subject 1 and the other side of the second subject 3 are opposite sides.

[0027] Secondly, such as Figures 1-3 As shown, the side sheet metal component 21 has at least an intermediate connecting portion 210 that is inclined to the axis of the bushing 4 and connected to the central connecting member 20. A through hole 211 is provided on the intermediate connecting portion 210, and the axis of the bushing 4 coincides with the axis of the through hole 211.

[0028] In this embodiment, the first main body 1 and the second main body 3 are respectively connected to the frame body. The through hole 211 of the connecting structure 2, together with the bushing 4, plays a role in the precise positioning of the front longitudinal beam assembly for the vehicle. That is, during the installation process, a positioning pin needs to pass through the bushing 4 and the through hole 211 in sequence, while fixing the first main body 1 and the second main body 3.

[0029] The side sheet metal component 21 serves for positioning and also strengthens the structural strength of the different sides of the first main body 1 and the second main body 3, as well as the central connecting component 20, such as improving torsional resistance. Furthermore, this structural design of the side sheet metal component 21 ensures that the center lines of the bushing 4 and the through hole 211 remain coaxial after processing, that is, their center lines coincide.

[0030] In a preferred embodiment, there are two side sheet metal components 21 symmetrically distributed along the axis of the central connecting member 20, and each side sheet metal component 21 has a through hole 211. The symmetrical distribution ensures the stability of the structural center of gravity and facilitates manufacturing. Furthermore, by using two separate parts, the quality of individual sheet metal production is very stable, reducing the difficulty of processing as a whole and improving processing efficiency.

[0031] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the intermediate connecting portion 210 has a first side and a second side distributed opposite to each other. The side sheet metal component 21 further includes a first connecting portion 212 and a second connecting portion 213. The first connecting portion 212 is connected to the first side of the intermediate connecting portion 210. The first connecting portion 212 and the intermediate connecting portion 210 are set at an angle, and the side of the first connecting portion 212 away from the intermediate connecting portion 210 is connected to the side of the first main body 1. Here, the first connecting portion 212 and the intermediate connecting portion 210 are set at an angle greater than 90°, such as 92°. Moreover, the first connecting portion 212 and the first main body 1 are tangent and welded together. The side of the first connecting portion 212 near the central connecting member 20 contacts the central connecting member 20 and the two are welded together.

[0032] The second connecting portion 213 is connected to the second side of the intermediate connecting portion 210. The second connecting portion 213 and the intermediate connecting portion 210 are set at an angle, and the side of the second connecting portion 213 away from the intermediate connecting portion 210 is connected to the other side of the second main body 3. The second connecting portion 213 and the intermediate connecting portion 210 are set at an angle of less than 90°, such as 88°. Moreover, the second connecting portion 213 is tangent to the second main body 3 and is welded together.

[0033] The aforementioned through hole 211 is provided on the intermediate connecting part 210.

[0034] Furthermore, on the side of the second connecting portion 213 near the central connecting member 20, there is also a side connecting portion 214 that is angled to the second connecting portion 213 and connected to the central connecting member 20, with the two side connecting portions 214 forming an angle greater than or equal to 90°. The side connecting portion 214 and the second connecting portion 213 form an obtuse angle, such as an angle between 100° and 150°. The side connecting portion 214 can further increase the connection strength between the second connecting portion 213 and the central connecting member 20, and at the same time, can further ensure the coaxiality of the through hole 211 and the bushing 4.

[0035] Preferably, in this embodiment, the side connecting portion 214 has a triangular or trapezoidal structure, and the width of the side connecting portion 214 gradually decreases from the middle connecting portion 210 towards the second connecting portion 213, with the second connecting portion 213 and the middle connecting portion 210 arranged at an angle of less than 90°. This can form a triangular or trapezoidal space, which can provide effective support for the structural stability of the middle connecting portion 210.

[0036] Secondly, after the side connection 214 and the central connection 20 are welded, the side of the side connection 214 near the central connection 210 is also welded to the central connection 210, and an unclosed space 215 is formed between the side connection 214 and the central connection 20 to distribute stress. The interior of the second connection 213, the side connection 214 and the central connection 210 forms a triangular space to improve the support strength.

[0037] Furthermore, in this embodiment, the central connector 20 is cylindrical, and the intermediate connecting portion 210 has an arc-shaped matching opening 2100 that conforms to the outer cylindrical surface of the central connector 20. The side connecting portion 214, away from the second connecting portion 213, is in tangential contact with the outer cylindrical surface of the central connector 20. The central connector 20 and the side connecting portion 214 are welded together, and the arc-shaped matching opening 2100 is welded together with the central connector 20. The first body 1 includes at least a first transverse member 10 that is perpendicularly connected to the central connector 20. The first transverse member 10 is, for example, a metal pipe. The first connecting portion 212 and the first transverse member 10 are in tangential contact and are welded together. Secondly, the second body 3 includes at least a second transverse member 30 that is perpendicularly connected to the central connector 20. The second transverse member 30 is also a metal pipe. The second connecting portion 213 and the second transverse member 30 are in tangential contact and are welded together.

[0038] Secondly, vertical members 31 extending away from the first main body 1 are respectively connected to both ends of the second transverse member 30. The two vertical members 31 and the second transverse member 30 form a U-shaped member with a U-shaped structure. A functional sheet metal member 32 is set in the U-shaped member. The three sides of the functional sheet metal member 32 are welded to the vertical members 31 and the second transverse member 30. The above structure can ensure the structural stability of the second main body 3.

[0039] like Figures 1-5 As shown, the above-mentioned front longitudinal beam assembly for a vehicle is manufactured by the following processing method, which specifically includes the following steps: S1. Prepare the first main body 1, the connecting structure 2, the second main body 3 and the bushing 4. The connecting structure 2 includes the central connecting piece 20 and the side sheet metal component 21. S2. Fix the second body 3, center the first body 1 with the bushing 4 and fix the first body 1, and make the centering connector 20 contact the first body 1 and the second body 3 in advance, weld the contact surface of the first body 1 and the centering connector 20, and weld the contact surface of the second body 3 and the centering connector 20 to obtain a welded semi-finished product. S3. Using the bushing 4 as a reference and fixing the welded semi-finished product, the side sheet metal component 21 is respectively contacted to one side of the first main body 1, the other side of the central connecting piece 20 and the second main body 3 in S2. The coaxiality constraint shaft 5 passes through the through hole 211 on the bushing 4 and the side sheet metal component 21. Finally, the side sheet metal component 21 is welded to the first main body 1, the central connecting piece 20 and the second main body 3, and the bushing 4 is welded to the first main body 1, thus obtaining the front longitudinal beam assembly for the vehicle.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A front longitudinal beam assembly for a vehicle, characterized in that, The assembly includes a first body (1) and a second body (3) connected to the first body (1) via a connecting structure (2). The first body (1) has two bushings (4) with parallel axes. The connecting structure (2) includes at least a central connector (20) connecting the first body (1) and the second body (3). In the thickness direction, the connecting structure (2) also includes a side sheet metal member (21) connecting one side of the first body (1), the other side of the second body (3), and the central connector (20). The side sheet metal member (21) has at least an intermediate connecting portion (210) that is inclined to the axis of the bushing (4) and connected to the central connector (20). The intermediate connecting portion (210) has a through hole (211), and the axis of the bushing (4) coincides with the axis of the through hole (211).

2. The front longitudinal beam assembly for a vehicle according to claim 1, characterized in that, There are two side sheet metal components (21) and they are symmetrically distributed along the axis of the central connector (20), and each side sheet metal component (21) has a through hole (211).

3. A front longitudinal beam assembly for a vehicle according to claim 1 or 2, characterized in that, The intermediate connecting part (210) has a first side and a second side that are relatively distributed. The side sheet metal component (21) further includes a first connecting part (212) and a second connecting part (213). The first connecting part (212) is connected to the first side of the intermediate connecting part (210). The first connecting part (212) and the intermediate connecting part (210) are set at an angle and the side of the first connecting part (212) away from the intermediate connecting part (210) is connected to the first body (1). The second connecting part (213) is connected to the second side of the intermediate connecting part (210). The second connecting part (213) and the intermediate connecting part (210) are set at an angle and the side of the second connecting part (213) away from the intermediate connecting part (210) is connected to the second body (3).

4. A front longitudinal beam assembly for a vehicle according to claim 3, characterized in that, The second connecting part (213) also has a side connecting part (214) on the side near the centering connector (20) that is angled to the second connecting part (213) and connected to the centering connector (20).

5. A front longitudinal beam assembly for a vehicle according to claim 4, characterized in that, The side connection portion (214) has a triangular or trapezoidal structure, and the width of the side connection portion (214) gradually decreases from the middle connection portion (210) toward the second connection portion (213).

6. A front longitudinal beam assembly for a vehicle according to claim 5, characterized in that, An angle greater than or equal to 90° is formed between the two side connecting parts (214).

7. A front longitudinal beam assembly for a vehicle according to claim 4, characterized in that, The central connector (20) is cylindrical, and the middle connecting part (210) has an arc-shaped matching port (2100) that is similar to the outer cylindrical surface of the central connector (20). The side connecting part (214) is in tangential contact with the outer cylindrical surface of the central connector (20) on one side away from the second connecting part (213). The central connector (20) and the side connecting part (214) are welded together, and the arc-shaped matching port (2100) is welded together with the central connector (20).

8. A front longitudinal beam assembly for a vehicle according to claim 3, characterized in that, The first body (1) includes at least a first transverse member (10) that is perpendicularly connected to the central connecting member (20), and the first connecting part (212) and the first transverse member (10) are in tangential contact and are welded together.

9. A front longitudinal beam assembly for a vehicle according to claim 3, characterized in that, The second body (3) includes at least a second transverse member (30) that is perpendicularly connected to the central connecting member (20), and the second connecting part (213) and the second transverse member (30) are in tangential contact and are welded together.

10. A method for machining a front longitudinal beam assembly for a vehicle, used for machining a front longitudinal beam assembly for a vehicle as described in any one of claims 1-9, characterized in that, The processing method includes the following steps: S1. Prepare a first main body (1), a connecting structure (2), a second main body (3) and a bushing (4). The connecting structure (2) includes a central connecting piece (20) and a side sheet metal component (21). S2. Fix the second body (3), center the first body (1) with the bushing (4) and fix the first body (1), and make the centering connector (20) contact the first body (1) and the second body (3) in advance, weld on the contact surface of the first body (1) and the centering connector (20), and weld on the contact surface of the second body (3) and the centering connector (20) to obtain a welded semi-finished product; S3. Using the bushing (4) as a reference and fixing the welded semi-finished product, the side sheet metal component (21) is respectively contacted on one side of the first main body (1) in S2, the other side of the central connecting member (20) and the second main body (3). The through hole (211) on the bushing (4) and the side sheet metal component (21) is passed through by the coaxiality constraint shaft (5). Finally, the side sheet metal component (21) is welded to the first main body (1), the central connecting member (20) and the second main body (3), and the bushing (4) is welded to the first main body (1), thus obtaining the front longitudinal beam assembly for vehicles.

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