High-rigidity nested welded joints between frame crossbeams and longitudinal beams

Abstract

This utility model relates to a high-rigidity nested welding joint between a vehicle frame crossbeam and longitudinal beams. It includes a longitudinal beam and a crossbeam, and a first welding component disposed between the longitudinal beam and the crossbeam. The first welding component is divided into a main plate, a secondary plate, a transverse side plate, and a longitudinal side plate. The main plate and the two transverse side plates are in contact with the surface of the crossbeam, and one side of each of the main plate and the two transverse side plates is welded to the crossbeam. This utility model significantly increases the contact area between the crossbeam and the longitudinal beam through the placement of the first welding component. Furthermore, since the main plate, transverse side plate, and longitudinal side plate of the first welding component can be welded to different planes on the longitudinal beam, the first welding component can be installed in a nested manner at the joint between the crossbeam and the longitudinal beam, greatly increasing the connection strength between the crossbeam and the longitudinal beam. Simultaneously, a second welding component reinforces the connection between the two first welding components, further increasing the connection strength between the crossbeam and the longitudinal beam.

Description

Technical Field

[0001] This utility model relates to the field of automotive frame processing technology, specifically to a high-rigidity nested welding joint between the crossbeam and longitudinal beam of the frame. Background Technology

[0002] The subframe assembly and the chassis frame assembly in a car body both include longitudinal beams and transverse beams. The two longitudinal beams and several transverse beams of the subframe assembly are connected to form a frame structure. Generally, the transverse beams and longitudinal beams are made of square tubular aluminum profiles.

[0003] In existing technologies, when welding the crossbeams and longitudinal beams of a vehicle frame, welding is mostly done directly along the joint to improve the connection strength between the crossbeams and longitudinal beams. However, this method results in a small area at the welding joint between the crossbeams and longitudinal beams, and the crossbeam is only welded on one surface of the longitudinal beam, resulting in less actual contact between the two, which affects the rigidity of the connection between the crossbeams and longitudinal beams. Utility Model Content

[0004] The purpose of this invention is to provide a high-rigidity nested welding joint between the crossbeam and longitudinal beam of the vehicle frame, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The high-rigidity nested welding joint of the frame crossbeam and longitudinal beam includes a longitudinal beam and a crossbeam, and also includes a first welding component. The first welding component is disposed between the longitudinal beam and the crossbeam. The first welding component is divided into a main plate, a sub-plate, a transverse side plate and a longitudinal side plate. The main plate and the two transverse side plates are in contact with the surface of the crossbeam, and one side of the main plate and the two transverse side plates are welded to the crossbeam. The sub-plate and the two longitudinal side plates are in contact with the surface of the longitudinal beam, and one side of the sub-plate and the two longitudinal side plates are welded to the longitudinal beam.

[0007] Preferably, it further includes a second welded component, which is disposed between the two first welded components in the vertical direction, and the second welded component is connected to both the longitudinal beam and the transverse beam.

[0008] Preferably, the second welded component is divided into a horizontal connecting plate and a vertical connecting plate. The horizontal connecting plate is in contact with the surface of the crossbeam, the vertical connecting plate is in contact with the surface of the longitudinal beam, the horizontal connecting plate is also in contact with two horizontal side plates, and the vertical connecting plate is also in contact with two vertical side plates.

[0009] Preferably, both the transverse connecting plate and the longitudinal connecting plate are provided with receiving holes, and both the transverse side plate and the longitudinal side plate are fixedly connected with support rods, one end of which is inserted into the receiving hole along the axial direction.

[0010] Preferably, the axial length of the receiving hole is twice the axial length of a single support rod.

[0011] Preferably, a first reinforcing rib is fixedly installed on the longitudinal beam, and the first reinforcing rib is in contact with the first welded component; a second reinforcing rib is fixedly installed on the cross beam, and the second reinforcing rib is in contact with the second welded component.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model significantly increases the contact area between the crossbeam and the longitudinal beam by setting the first welded component. Furthermore, since the main plate, transverse side plate, and longitudinal side plate in the first welded component can be welded to different planes on the longitudinal beam, the first welded component can be installed in a nested manner at the joint between the crossbeam and the longitudinal beam, which greatly increases the connection strength between the crossbeam and the longitudinal beam. At the same time, the connection strength between the crossbeam and the longitudinal beam is further increased by reinforcing the two first welded components with a second welded component. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the first welded component and the second welded component of this utility model;

[0017] Figure 4 This is a side view of the first reinforcing rib of this utility model.

[0018] In the diagram: 1. Longitudinal beam; 2. Crossbeam; 3. First welded component; 31. Main plate; 32. Sub-plate; 33. Horizontal side plate; 34. Longitudinal side plate; 4. Second welded component; 41. Horizontal connecting plate; 42. Longitudinal connecting plate; 5. First reinforcing rib; 6. Second reinforcing rib; 7. Support rod; 8. Receiving hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution:

[0021] The high-rigidity nested welding joint between the crossbeam and the longitudinal beam of the vehicle frame includes a longitudinal beam 1 and a crossbeam 2, and also includes a first welding component 3. The first welding component 3 is disposed between the longitudinal beam 1 and the crossbeam 2. The first welding component 3 is divided into a main plate 31, a sub-plate 32, a transverse side plate 33 and a longitudinal side plate 34. The main plate 31 and the two transverse side plates 33 are in contact with the surface of the crossbeam 2, and one side of the main plate 31 and the two transverse side plates 33 are welded to the crossbeam 2. The sub-plate 32 and the two longitudinal side plates 34 are in contact with the surface of the longitudinal beam 1, and one side of the sub-plate 32 and the two longitudinal side plates 34 are welded to the longitudinal beam 1.

[0022] Please see Figure 1 and Figure 2 Two main plates 31 cover the top and bottom surfaces of the crossbeam 2, respectively. In this case, two auxiliary plates 32 cover the top and bottom surfaces of the longitudinal beam 1, respectively. The main plates 31 and auxiliary plates 32 are actually two parts of the same plate. The main plates 31 and auxiliary plates 32 make the longitudinal beam 1 and the crossbeam 2 overlap. Then, the transverse side plate 33 covers the side of the crossbeam 2, and the longitudinal side plate 34 covers the side of the longitudinal beam 1. The transverse side plate 33 and the longitudinal side plate 34 are connected to each other. Overall, the first welding piece 3 is installed in the gap between the longitudinal beam 1 and the crossbeam 2 in a nested manner. With the cooperation of the two first welding pieces 3, the crossbeam 2 can be welded to three sides of the longitudinal beam 1 at the same time, which greatly increases the rigidity between the longitudinal beam 1 and the crossbeam 2.

[0023] This embodiment also includes a second welded component 4, which is disposed between two first welded components 3 in the vertical direction. The second welded component 4 is connected to both the longitudinal beam 1 and the transverse beam 2. The second welded component 4 is divided into a transverse connecting plate 41 and a longitudinal connecting plate 42. The transverse connecting plate 41 is in contact with the surface of the transverse beam 2, and the longitudinal connecting plate 42 is in contact with the surface of the longitudinal beam 1. The transverse connecting plate 41 is also in contact with two transverse side plates 33, and the longitudinal connecting plate 42 is also in contact with two longitudinal side plates 34.

[0024] Please see Figure 2 and Figure 3 In the second welded component 4, the transverse connecting plate 41 covers the side of the transverse beam 2, and the longitudinal connecting plate 42 covers the side of the longitudinal beam 1. The transverse connecting plate 41 and the longitudinal connecting plate 42 are also connected to each other. The setting of the second welded component 4 can increase the connection strength between the two first welded components 3 and the longitudinal beam 1 during welding.

[0025] Both the transverse connecting plate 41 and the longitudinal connecting plate 42 are provided with receiving holes 8. Both the transverse side plate 33 and the longitudinal side plate 34 are fixedly connected with support rods 7. One end of the support rod 7 is inserted into the receiving hole 8 along the axial direction. The axial length of the receiving hole is twice the axial length of a single support rod 7.

[0026] Please see Figure 3In this embodiment, the horizontal positioning between the first welded part 3 and the second welded part 4 is achieved by the cooperation of the receiving hole 8 and the support rod 7. At this time, the two first welded parts 3 can be vertically positioned at the upper and lower ends of the second welded part 4, thereby further increasing the connection strength between the longitudinal beam 1 and the transverse beam 2, and also facilitating the positioning of the first welded part 3 and the second welded part 4 when welding the longitudinal beam 1 and the transverse beam 2.

[0027] A first reinforcing rib 5 is fixedly installed on the longitudinal beam 1, and the first reinforcing rib 5 is in contact with the first welded part 3. A second reinforcing rib 6 is fixedly installed on the cross beam 2, and the second reinforcing rib 6 is in contact with the second welded part 4.

[0028] Please see Figure 1 and Figure 4 The first reinforcing rib 5 is set at the connection between the longitudinal beam 1 and the first welded part 3, and the second reinforcing rib 6 is set at the connection between the cross beam 2 and the second welded part 4. The setting of the first reinforcing rib 5 and the second reinforcing rib 6 can increase the welding surface during welding, thereby increasing the connection strength between the longitudinal beam 1 and the first welded part 3, as well as the cross beam 2 and the second welded part 4, and further improving the overall rigidity. The cross-section of the first reinforcing rib 5 and the second reinforcing rib 6 is set as a semi-circular structure. The semi-circular structure can increase the contact area between the welding material and the longitudinal beam 1, the first reinforcing rib 5 and the first welded part 3, as well as the cross beam 2, the second reinforcing rib 6 and the second welded part 4, and further improve the overall rigidity.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-rigidity nested welded joint between a crossbeam and a longitudinal beam of a vehicle frame, comprising a longitudinal beam (1) and a crossbeam (2), characterized in that: It also includes a first welded component (3), which is disposed between the longitudinal beam (1) and the transverse beam (2). The first welded component (3) is divided into a main plate (31), a secondary plate (32), a transverse side plate (33) and a longitudinal side plate (34). The main plate (31) and the two transverse side plates (33) are in contact with the surface of the transverse beam (2), and one side of the main plate (31) and the two transverse side plates (33) are welded to the transverse beam (2). The secondary plate (32) and the two longitudinal side plates (34) are in contact with the surface of the longitudinal beam (1), and one side of the secondary plate (32) and the two longitudinal side plates (34) are welded to the longitudinal beam (1).

2. The high-rigidity nested welding joint between the crossbeam and longitudinal beam of the vehicle frame according to claim 1, characterized in that: It also includes a second welded component (4), which is disposed between two first welded components (3) in the vertical direction, and the second welded component (4) is connected to both the longitudinal beam (1) and the transverse beam (2).

3. The high-rigidity nested welding joint between the crossbeam and longitudinal beam of the vehicle frame according to claim 2, characterized in that: The second welded component (4) is divided into a horizontal connecting plate (41) and a vertical connecting plate (42). The horizontal connecting plate (41) is in contact with the surface of the crossbeam (2), and the vertical connecting plate (42) is in contact with the surface of the longitudinal beam (1). The horizontal connecting plate (41) is also in contact with two horizontal side plates (33), and the vertical connecting plate (42) is also in contact with two vertical side plates (34).

4. The high-rigidity nested welding joint between the crossbeam and longitudinal beam of the vehicle frame according to claim 3, characterized in that: Both the transverse connecting plate (41) and the longitudinal connecting plate (42) are provided with receiving holes (8), and both the transverse side plate (33) and the longitudinal side plate (34) are fixedly connected with support rods (7). One end of the support rod (7) is inserted into the receiving hole (8) along the axial direction.

5. The high-rigidity nested welding joint between the crossbeam and longitudinal beam of the vehicle frame according to claim 4, characterized in that: The axial length of the receiving hole is one time the axial length of a single support rod (7).

6. The high-rigidity nested welding joint between the crossbeam and longitudinal beam of the vehicle frame according to claim 1, characterized in that: A first reinforcing rib (5) is fixedly installed on the longitudinal beam (1), and the first reinforcing rib (5) is in contact with the first welded part (3). A second reinforcing rib (6) is fixedly installed on the cross beam (2), and the second reinforcing rib (6) is in contact with the second welded part (4).

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