Chassis assembly connectors and chassis assembly

Abstract

This utility model discloses a frame assembly connector and a frame assembly, including a connector body. A transverse groove and a longitudinal groove are respectively provided on the upper rear and front sides of the connector body. The transverse groove extends through the connector body laterally, and the longitudinal groove extends through the front of the connector body. The transverse and longitudinal grooves are not interconnected. Several connecting holes are provided on the sidewalls of both the longitudinal and transverse grooves. A leaf spring lug is provided at the bottom of the connector body. The connector body is made of aluminum alloy, which facilitates a lightweight design of the frame assembly. The large contact surface between the connector body and the longitudinal and transverse beams improves the overall structural strength of the frame assembly. The connector body can be disassembled from the longitudinal and transverse beams, facilitating frame assembly maintenance.

Description

Technical Field

[0001] This utility model relates to the field of automobile frame manufacturing technology, specifically to frame assembly connectors and frame assemblies. Background Technology

[0002] As the main supporting structure of vans or single-cab pickup trucks, the complexity and strength of the chassis determine its production efficiency and quality. The main components of the existing van or single-cab pickup truck chassis assembly are longitudinal beams and crossbeams. Currently, the crossbeams and longitudinal beams are connected using traditional welding (CO2 shielded welding).

[0003] The following drawbacks exist in using welding to connect longitudinal and transverse beams: 1. The structure is relatively heavy, and there is no advantage in terms of lightweighting; 2. The welding contact area is limited, which limits the room for improvement in structural rigidity and cannot meet the requirements of higher rigidity frames; 3. It is not convenient to replace damaged welded parts, making frame maintenance inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a frame assembly connector and a frame assembly. The connector body is made of aluminum alloy, which facilitates the lightweight design of the frame assembly. The large contact surface between the connector body and the longitudinal beams and crossbeams facilitates the improvement of the overall structural strength of the frame assembly. The connector body and the longitudinal beams and crossbeams can be disassembled, which facilitates the maintenance of the frame assembly.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a frame assembly connector and a frame assembly, including a connector body, a transverse groove and a longitudinal groove respectively provided on the upper rear side and the front side of the connector body, the transverse groove penetrating the connector body from left to right, the longitudinal groove penetrating the front part of the connector body, the transverse groove and the longitudinal groove not communicating with each other, a plurality of connecting holes are provided on the side walls of the longitudinal groove and the transverse groove, and a leaf spring lug is provided at the bottom of the connector body.

[0006] Preferably, the left bottom surface of the transverse groove is lower than its right bottom surface.

[0007] Preferably, a positioning hole is provided at both ends of the bottom surface of the transverse groove and at the bottom surface of the longitudinal groove.

[0008] Preferably, a plurality of first protrusions are vertically arranged on both the rear inner wall and the front inner wall of the transverse groove, and a plurality of connecting holes are provided on the first protrusions.

[0009] Preferably, a plurality of second protrusions are horizontally arranged on the left inner wall and the right inner wall of the longitudinal groove, and a plurality of connecting holes are provided on the second protrusions.

[0010] Furthermore, a slope is provided on the outer side wall of both the first and second protrusions.

[0011] Furthermore, a number of reinforcing ribs with equal vertical spacing are provided between the front sidewall of the transverse groove and the left and right sidewalls of the longitudinal groove.

[0012] Furthermore, the frame assembly connector is a one-piece aluminum alloy casting.

[0013] Furthermore, the leaf spring lug includes two support lugs spaced apart front and rear, and each support lug has a through hole.

[0014] A frame assembly includes the frame assembly connectors described above.

[0015] The beneficial effects of this utility model are: the utility model has a simple structure and is convenient to process and manufacture; in the actual processing, the connecting body is integrally formed by casting, which can improve its processing and manufacturing efficiency; the longitudinal beams and transverse beams of the frame are fixedly connected to the connecting body by multiple surface-to-surface bonding methods, which can further improve the structural strength of the frame assembly compared with the welding connection method; the longitudinal beams and transverse beams can be disassembled from the connecting body, which facilitates the maintenance of the frame assembly; the outer planes of the first protrusion and the second protrusion are slopes with a certain inclination angle, which helps to solve the mismatch problem caused by the possible unevenness of the two mounting surfaces, so that the longitudinal beams and transverse beams can be smoothly installed and positioned in the longitudinal grooves and transverse grooves. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the overall structure of this utility model;

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 1 Enlarged view at point B in the middle;

[0021] In the figure: 1 Connector body, 11 Horizontal groove, 111 First protrusion, 12 Longitudinal groove, 121 Second protrusion, 2 Connecting hole, 3 Leaf spring lug, 31 Supporting lug, 32 Through hole, 4 Positioning hole, 5 Reinforcing rib, 6 Slope. Detailed Implementation

[0022] The following will describe specific embodiments and appendices. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] This utility model provides a frame assembly connector (such as...) Figure 1 As shown, the connector body 1 includes a casting body 1. In practical applications, to improve manufacturing efficiency and achieve lightweight design, the connector body 1 is manufactured using a casting method, resulting in an aluminum alloy material. A transverse groove 11 and a longitudinal groove 12 are respectively provided on the upper rear and front sides of the connector body 1. The transverse groove 11 extends through the connector body 1 horizontally, while the longitudinal groove 12 extends through the front of the connector body 1. The transverse groove 11 and longitudinal groove 12 are not interconnected. Several connecting holes 2 are provided on the side walls of both the longitudinal groove 12 and the transverse groove 11. In practical applications, the crossbeams of the frame are placed in the transverse grooves 11, and the longitudinal beams of the frame are placed in the longitudinal crossbeams 12. High-strength bolts are used to pass through the connecting holes 2 and the longitudinal and transverse beams. After the corresponding through holes are made, the longitudinal beams and crossbeams can be fixedly connected to the connecting body 1. The longitudinal beams and crossbeams have a large area of ​​surface contact with the sidewalls of the transverse groove 11 or the longitudinal groove 12. Compared with the existing direct welding of longitudinal beams and crossbeams, this greatly increases the connection contact area, thereby greatly improving the structural strength of the frame. In practical applications, the specific distribution and number of connecting holes 2 on the transverse groove 11 and the longitudinal groove 12 depend on the specific structure of the crossbeams and longitudinal beams. In this specific embodiment, eight rows of connecting holes are vertically arranged on the two front and rear sidewalls of the transverse groove 11, and the number of connecting holes 2 in each row depends on the actual needs. Four rows of connecting holes are horizontally arranged on the left and right sidewalls of the longitudinal groove 12, with two connecting holes in each row. A leaf spring lug 3 is provided at the bottom of the connecting body 1. In practical applications, the end of the leaf spring is fixed to the leaf spring lug 3, which facilitates the transfer of the load of the connecting body 1 to the leaf spring.

[0024] Based on the above embodiments, in order to facilitate the installation and fixing of crossbeams of different specifications in the transverse groove 11, the left bottom surface of the transverse groove 11 is lower than its right bottom surface. The height difference between the left bottom surface and the right bottom surface can be specifically designed according to actual needs.

[0025] Based on the above embodiments, in order to facilitate the installation and positioning of the connector body 1, a positioning hole 4 is provided at both ends of the bottom surface of the horizontal groove 11 and the bottom surface of the vertical groove 12.

[0026] Based on the above implementation, to facilitate the flatness of the joints between the transverse groove 11 and the longitudinal groove 12 and the corresponding crossbeams and longitudinal beams, a plurality of first protrusions 111 are vertically arranged on the rear inner wall and the front inner wall of the transverse groove, and a plurality of connecting holes 2 are provided on the first protrusions 111. A plurality of second protrusions 121 are horizontally arranged on the left inner wall and the right inner wall of the longitudinal groove 12, and a plurality of connecting holes 2 are provided on the second protrusions 121. After the casting of the connector body 1 is completed, the connector body 1 is machined, that is, flat surfaces are machined on the first protrusions 111 and the second protrusions 121. The machined flat surfaces have high flatness. At the same time, because the first protrusions 111 and the second protrusions 121 are relatively thick, the connection strength at the joints between the transverse groove 11 and the longitudinal groove 12 and the corresponding crossbeams and longitudinal beams can be improved. When installing the crossbeams and longitudinal beams in the corresponding transverse grooves 11 and longitudinal grooves 12, in order to effectively solve the mismatch problem caused by the possible unevenness of the two mounting surfaces, a slope 6 is provided on the outer side wall of the first protrusion 111 and the second protrusion 121.

[0027] To further improve the overall structural strength of the connector body 1, several reinforcing ribs 5 are provided between the front side wall of the transverse groove 11 and the left and right side walls of the longitudinal groove 12, with equal vertical spacing.

[0028] Based on the above embodiments, the specific implementation of the leaf spring lug 3 is as follows: the leaf spring lug 3 includes two supporting lug plates 31 distributed at intervals, and a through hole 32 is provided on each of the supporting lug plates 31.

[0029] A chassis assembly includes the chassis assembly connectors described in the above embodiments.

[0030] In this utility model, "front", "rear", "up", "down", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.

[0031] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0032] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A frame assembly connector, characterized in that, The connector includes a connector body, with a transverse groove and a longitudinal groove respectively provided on the upper rear side and front side of the connector body. The transverse groove extends through the connector body from left to right, and the longitudinal groove extends through the front part of the connector body. The transverse groove and the longitudinal groove do not communicate with each other. Several connecting holes are provided on the side walls of the longitudinal groove and the transverse groove. A leaf spring lug is provided at the bottom of the connector body.

2. The frame assembly connector according to claim 1, characterized in that, The left bottom surface of the transverse groove is lower than its right bottom surface.

3. The frame assembly connector according to claim 1, characterized in that, A positioning hole is provided at both ends of the bottom surface of the horizontal groove and at the bottom surface of the vertical groove.

4. The frame assembly connector according to claim 1, characterized in that, Several first protrusions are vertically arranged on the rear inner wall and the front inner wall of the transverse groove, and several connecting holes are provided on the first protrusions.

5. The frame assembly connector according to claim 4, characterized in that, Several second protrusions are horizontally arranged on the left and right inner walls of the longitudinal groove, and several connecting holes are provided on the second protrusions.

6. The frame assembly connector according to claim 5, characterized in that, A slope is provided on the outer side wall of both the first and second protrusions.

7. The frame assembly connector according to claim 6, characterized in that, Several reinforcing ribs are provided between the front sidewall of the transverse groove and the left and right sidewalls of the longitudinal groove, with equal vertical spacing.

8. The frame assembly connector according to claim 7, characterized in that, The frame assembly connectors are made of one-piece aluminum alloy castings.

9. The frame assembly connector according to claim 8, characterized in that, The leaf spring lug includes two support lugs spaced apart front and rear, and each support lug has a through hole.

10. A frame assembly, characterized in that, Includes the frame assembly connector according to any one of claims 1-9.

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