Die-casting vehicle frame, vehicle frame mounting method and unmanned vehicle

Abstract

This invention discloses a die-cast vehicle frame, relating to the field of die-cast vehicle frame technology. It includes a frame body comprising two die-cast parts, an upper extruded profile frame, and a lower extruded profile frame. The upper and lower extruded profile frames are arranged vertically, forming two mounting stations between them. These two mounting stations are located on the front and rear sides of the frame body, respectively, and each mounting station is used to install one of the die-cast parts. This invention reduces the number of mounting parts, resulting in a 40% weight reduction for the same frame wheelbase. Furthermore, when adjusting the length of the aluminum extruded profile, the required length of the upper and lower extruded profile frames can be replaced between the two die-cast parts to change the wheelbase of the frame body. Overall disassembly is very convenient, and assembly is easy and flexible, making it suitable for widespread use.

Description

Technical Field

[0001] This invention relates to the field of die-cast vehicle frame technology, and more particularly to a die-cast vehicle frame, a vehicle frame installation method, and an unmanned vehicle. Background Technology

[0002] A vehicle frame is the skeleton or framework of a vehicle, used to support and secure the various components of the vehicle. Different types of vehicles may employ different designs and materials for their frames, but their primary purpose is to ensure the vehicle's structural stability and provide a solid platform for the safe connection and operation of various components.

[0003] Currently, vehicle frames used for autonomous driving are typically composed of steel tubing and steel plates. The steel tubing forms the main skeleton of the vehicle body, while the steel plates increase rigidity, connect supporting components, and secure other parts. During processing and assembly, a welded steel tubing frame generally includes the following structures:

[0004] Body frame: The body frame is welded from steel tubes with a large diameter, usually using square or round cross-section steel tubes; after being precisely measured and cut, they are connected together by welding technology to form the basic shape of the vehicle.

[0005] Support structures: The vehicle frame contains multiple support structures that increase overall rigidity and stability. These can be diagonal braces, crossbeams, or additional steel tubular assemblies welded to the vehicle frame.

[0006] Battery compartment and control system bracket: The bracket used to house the battery and control system is usually also welded from steel plates, and its position and size depend on the vehicle design and battery capacity.

[0007] As can be seen from the above, the steel tubular frame currently used for autonomous driving requires a high number of parts and has the following drawbacks:

[0008] 1. The steel welded frame has a large number of assembly parts, resulting in a heavy overall weight;

[0009] 2. The welding connection method results in a fixed overall frame structure, making it difficult to fine-tune the wheelbase of the frame.

[0010] Based on the above, we have designed a die-cast vehicle frame, a vehicle frame installation method, and an unmanned vehicle to solve the above problems. Summary of the Invention

[0011] The purpose of this invention is to address the shortcomings of existing technologies by proposing a die-cast vehicle frame, a vehicle frame installation method, and an unmanned vehicle.

[0012] To achieve the above objectives, the present invention adopts the following technical solution:

[0013] A die-cast vehicle frame includes a frame body, the frame body comprising two die-cast parts, an upper extruded profile frame, and a lower extruded profile frame;

[0014] The upper extrusion profile frame and the lower extrusion profile frame are arranged vertically, and two installation stations are formed between the upper extrusion profile frame and the lower extrusion profile frame. The two installation stations are located on the front and rear sides of the vehicle frame body, respectively, and each installation station is used to install one of the die-cast parts.

[0015] The upper extrusion profile frame is provided with two sets of connectors on the side near the lower extrusion profile frame. The two sets of connectors are detachably connected to the bottom of the two die-cast parts respectively. The lower extrusion profile frame is installed between the bottoms of the two die-cast parts.

[0016] A battery mounting space is formed between the two die-cast parts in conjunction with the upper extrusion profile frame and the lower extrusion profile frame;

[0017] Several mounting structures are provided at the bottom of the two die-cast parts.

[0018] Preferably, both die-cast parts are arc-shaped structures, and both die-cast parts are made of die-cast aluminum. The upper extrusion profile frame is provided with a fixing structure, which is located between the two die-cast parts. The fixing structure includes two I-shaped connecting frames, both ends of which are fixedly connected to the upper extrusion profile frame. A rectangular installation space is formed between the two I-shaped connecting frames and the upper extrusion profile frame, and a support plate is installed inside the rectangular installation space.

[0019] Preferably, the support plate has an upwardly bent connecting piece connected to the middle of both the front and rear sides. The two connecting pieces are detachably connected to two I-shaped connecting frames. The support plates on the left and right sides of the two connecting pieces are connected to abutment pieces. The two sets of abutment pieces are respectively connected to two die-cast parts.

[0020] Preferably, the upper extruded profile frame and the connector are provided with bolt mounting holes adapted to the two die-cast parts, and the bottom of the two die-cast parts away from the connector is detachably connected to a triangular support frame.

[0021] Preferably, the mounting structure includes a first mounting structure for mounting the shock-absorbing spring, wherein the first mounting structure is a first connecting piece disposed on the die-cast part and adaptable to be mounted on the shock-absorbing spring.

[0022] Preferably, the mounting structure further includes a second mounting structure for mounting the upper frame, wherein the second mounting structure is a first fixing hole provided on the die-cast part that can be adapted to be mounted on the upper frame.

[0023] Preferably, the mounting structure further includes a third mounting structure for mounting the container, wherein the third mounting structure is a second fixing hole provided on the die-cast part that can be adapted to the container for installation.

[0024] Preferably, the mounting structure further includes a fourth mounting structure for mounting the thrust rod, wherein the fourth mounting structure is a second connecting piece disposed on the die-cast part and adaptable to be mounted on the thrust rod.

[0025] A method for installing a die-cast vehicle frame includes the following processing steps:

[0026] S1. Components to be prepared before installation: two die-cast parts, upper extruded profile frame, lower extruded profile frame, two I-shaped connecting frames and connecting parts;

[0027] S2. Install the support parts of the frame components that need to be connected in S1: Fix two sets of vertically downward connecting parts to the bottom front and rear sides of the upper extruded profile frame respectively. Place two die-cast parts in the two installation positions respectively, align the bolt mounting holes on the upper extruded profile frame and connecting parts with the bolt mounting holes between the two die-cast parts, and then use bolts to tighten the connection. Install the lower extruded profile frame between the bottom of the two die-cast parts with bolts.

[0028] S3. Install the chassis components that need to be connected in S1: Install the shock absorber spring, thrust rod and cargo container at the bottom of the die casting through the mounting structure, and install the upper frame at the top of the die casting.

[0029] An unmanned vehicle, including a die-cast chassis.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. The frame body includes two die-cast parts, an upper extruded profile frame and a lower extruded profile frame. The two die-cast parts are made of die-cast aluminum. Compared with the existing technology of welding frames with steel profiles and steel plates, the number of installed parts is reduced, and the weight is reduced by 40% for the same frame wheelbase.

[0032] 2. When it is necessary to adjust the length of the aluminum extruded profile, it is only necessary to remove the bolts between the two die-cast parts, the connecting parts, the fixing structure and the upper and lower extruded profile frames. Then, the upper and lower extruded profile frames of the required length can be replaced and installed between the two die-cast parts. The positional distance between the two die-cast parts can be adjusted according to the replacement upper and lower extruded profile frames, thereby changing the wheelbase of the frame body and realizing the fine adjustment of the wheelbase of the frame body. The whole disassembly is very convenient, and the assembly is convenient and flexible, making it suitable for widespread use. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a die-cast vehicle frame, a vehicle frame installation method, and an unmanned vehicle proposed in this invention;

[0034] Figure 2 This is a top view of a die-cast vehicle frame, a vehicle frame mounting method, and an unmanned vehicle proposed in this invention;

[0035] Figure 3 This is a schematic diagram of a die-cast vehicle frame, a vehicle frame mounting method, and a mounting structure on a die-cast part of an unmanned vehicle, as proposed in this invention.

[0036] Figure 4 This is a schematic diagram of a die-cast vehicle frame, a vehicle frame mounting method, and a mounting structure on a die-cast part of an unmanned vehicle, as proposed in this invention.

[0037] Figure 5 This invention provides a die-cast vehicle frame, a vehicle frame mounting method, and a front view of an unmanned vehicle.

[0038] Figure 6 This is a schematic diagram of a die-cast vehicle frame, a vehicle frame installation method, and a spring shock absorption device for an unmanned vehicle, as proposed in this invention.

[0039] In the diagram: 1. Frame body, 2. Die-cast part, 3. Support plate, 4. Upper extruded profile frame, 5. Fixing structure, 501I type connecting frame, 6. Battery mounting space, 7. Fourth mounting structure, 8. Thrust rod, 9. Shock absorber spring, 10. Connector, 11. Triangular support frame, 12. Lower extruded profile frame, 13. First mounting structure, 14. Second mounting structure, 15. Third mounting structure. Detailed Implementation

[0040] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] Reference Figure 1-6 A die-cast vehicle frame includes a frame body 1, which includes two die-cast parts 2, an upper extruded profile frame 4 and a lower extruded profile frame 12. Both the upper extruded profile frame 4 and the lower extruded profile frame 12 are made of aluminum material and manufactured by an extrusion process.

[0042] The upper extrusion profile frame 4 and the lower extrusion profile frame 12 are arranged vertically, and two installation stations are formed between the upper extrusion profile frame 4 and the lower extrusion profile frame 12. The two installation stations are located on the front and rear sides of the frame body 1, respectively, and each installation station is used to install a die-cast part 2.

[0043] The upper extrusion profile frame 4 has two sets of connectors 10 on one side near the lower extrusion profile frame 12. The two sets of connectors 10 are detachably connected to the bottom of the two die-cast parts 2 respectively. The lower extrusion profile frame 12 is installed between the bottoms of the two die-cast parts 2.

[0044] Among them, the upper extruded profile frame 4 and the connector 10 are provided with bolt mounting holes that are adapted to the two die-cast parts 2. The bottom of the two die-cast parts 2 away from the connector 10 is detachably connected to a triangular support frame 11.

[0045] The two die-cast parts 2 cooperate with the upper extrusion profile frame 4 and the lower extrusion profile frame 12 to form a battery installation space 6. When the installed battery is a hanging battery, the bottom of the lower extrusion profile frame 12 is not equipped with a bottom plate. When the installed battery is a side-pull battery, a bottom plate is added to the bottom of the lower extrusion profile frame 12.

[0046] The bottom of the two die-cast parts 2 is provided with several mounting structures. Both die-cast parts 2 are arc-shaped structures, and the material of the two die-cast parts 2 is die-cast aluminum.

[0047] In this embodiment, the die-cast aluminum material has a tensile strength of 260 MPa, a yield strength of 140 MPa, and an elongation of 12%. The die-cast part has dimensions of 825*695*230 mm and is produced using a single mold and a single cavity. The press tonnage is 3000t-4000t.

[0048] Compared to existing technologies that weld frames using steel profiles and plates, this method reduces the number of welded parts and lowers the weight by 40%.

[0049] The two die-cast parts 2 are adjustablely installed between the front and rear sides of the upper extrusion profile frame 4. The upper extrusion profile frame 4 is provided with a fixing structure 5, which is located between the two die-cast parts 2. The fixing structure 5 includes two I-shaped connecting frames 501. Both ends of the two I-shaped connecting frames 501 are fixedly connected to the upper extrusion profile frame 4. The two I-shaped connecting frames 501 and the upper extrusion profile frame 4 form a rectangular installation space. A support plate 3 is installed inside the rectangular installation space.

[0050] Among them, the front and rear sides of the support plate 3 are connected with the upward-bent connecting piece 301. The two connecting pieces 301 are detachably connected to the two I-shaped connecting frames 501 respectively. The support plate 3 on the left and right sides of the two connecting pieces 301 is connected with the abutment piece 302. The two sets of abutment pieces 302 are respectively connected to the two die-cast parts 2.

[0051] In this embodiment, the mounting structure includes a first mounting structure 13 for mounting the shock-absorbing spring 9, which is a first connecting piece on the die-cast part 2 that can be adapted to be mounted on the shock-absorbing spring 9. The mounting structure also includes a second mounting structure 14 for mounting the upper frame, which is a first fixing hole on the die-cast part that can be adapted to be mounted on the upper frame. The mounting structure also includes a third mounting structure 15 for mounting the cargo container, which is a second fixing hole on the die-cast part that can be adapted to be mounted on the cargo container. The mounting structure also includes a fourth mounting structure 7 for mounting the thrust rod 8, which is a second connecting piece on the die-cast part 2 that can be adapted to be mounted on the thrust rod 8.

[0052] Example 1

[0053] A die-cast vehicle frame, a vehicle frame mounting method, and an unmanned vehicle mounting method, comprising the following processing steps:

[0054] S1. Components to be prepared before installation: two die-cast parts 2, upper extruded profile frame 4, lower extruded profile frame 12, two I-shaped connecting frames 501 and connecting parts 10;

[0055] S2. Install the support parts of the frame components that need to be connected in S1: Fix two sets of vertically downward connecting parts 10 to the bottom front and rear sides of the upper extrusion profile frame 4 respectively. Place two die-cast parts 2 at the two installation positions respectively, align the bolt mounting holes on the upper extrusion profile frame 4 and the connecting parts 10 with the bolt mounting holes between the two die-cast parts 2, and then use bolts to tighten the connection. Install the lower extrusion profile frame 12 between the bottoms of the two die-cast parts 2 with bolts.

[0056] More specifically, in this embodiment, the upper extrusion profile frame 4 is a frame structure that is bolted to the left and right sides of the two die-cast parts 2. First, the front and rear sides of the frame are locked and fixed to the top of the die-cast parts 2 by bolts. Each frame is fixedly connected to a set of connectors 10 at the bottom. Each set of connectors 10 includes two connecting frame structures. The distance between the two connecting frame structures is adapted to the distance between the sides of the lower extrusion profile frame 12. When installing and fixing the bottom of the two die-cast parts 2, bolts are installed in the mounting holes inside the connectors 10, and the bolts are locked and fixed to the sides of the bottom of the two die-cast parts 2.

[0057] Next, the front and rear sides of the lower extruded profile frame 12 are locked to the die-cast part 2 with bolts; thus, the frame body 1 can be installed.

[0058] It should be noted that a rectangular installation space is formed between the two I-shaped connecting brackets 501 and the upper extruded profile frame 4. A support plate 3 is installed inside the rectangular installation space. The two connecting pieces 301 of the support plate 3 are bent and set inside the two I-shaped connecting brackets 501 and fixedly connected to them by bolts.

[0059] S3. Install the chassis components that need to be connected in S1: Install the shock absorber spring 9, thrust rod 8 and cargo container at the bottom of the die-cast part 2 through the installation structure, and install the upper frame on the top of the die-cast part 2 to form an unmanned vehicle with a die-cast frame.

[0060] Example 2

[0061] In this embodiment, the difference from that in Embodiment 1 is that the lower extruded profile frame 12 can finely adjust the wheelbase of the frame by adjusting the length of the middle aluminum extruded profile.

[0062] In this embodiment, the aluminum extrusion profile includes an upper extrusion profile frame 4 and a lower extrusion profile frame 12. When adjusting the length of the aluminum extrusion profile, it is only necessary to remove the bolts between the two die-cast parts 2, the connector 10, the fixing structure 5 and the upper extrusion profile frame 4 and the lower extrusion profile frame 12. Then, the upper extrusion profile frame 4 and the lower extrusion profile frame 12 of the required length can be replaced between the two die-cast parts 2. The positional distance between the two die-cast parts 2 can be adjusted according to the replacement of the upper extrusion profile frame 4 and the lower extrusion profile frame 12, thereby changing the wheelbase of the frame body 1 and realizing the fine adjustment of the wheelbase of the frame body 1. The whole disassembly is very convenient, the assembly is convenient and flexible, and it is suitable for widespread use.

[0063] In this embodiment, a longer upper extrusion profile frame 4 and lower extrusion profile frame 12 are used. Therefore, when it is necessary to change the wheelbase of the frame, only the length and weight of the aluminum extrusion profile between the two die-cast parts need to be changed, without changing the structure and weight of the entire frame body.

[0064] By comparing the prior art with the above-described Embodiment 1 and Embodiment 2, the results are as follows:

[0065]

[0066] Through the above comparison, it can be clearly seen that, compared with the existing technology, the integrated die-cast frame requires fewer parts to be assembled into the frame body. Furthermore, the screw connection between the parts makes it easy to replace the upper extrusion profile 4 and lower extrusion profile 12 of the required length by disassembling the bolts between the two die-cast parts 2, the connector 10, the fixing structure 5, the upper extrusion profile frame 4, and the lower extrusion profile frame 12. This allows for changing the wheelbase of the frame body, making disassembly very convenient and assembly flexible. At the same time, through comparison, when the longer upper extrusion profile frame 4 and lower extrusion profile frame 12 are installed, the overall weight of the frame is also lower than that of the existing technology. Therefore, it can be inferred that when the shorter upper extrusion profile frame 4 and lower extrusion profile frame 12 need to be replaced, the weight will be even smaller.

[0067] Meanwhile, compared to existing technologies, the number of parts that need to be assembled into the chassis body is reduced, the production time is also shorter, and the precision of the parts is relatively higher. Therefore, compared to existing technologies, the integrated die-cast chassis has higher production and installation efficiency and is more precise and convenient to assemble.

[0068] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-cast vehicle frame, comprising a frame body (1), characterized in that, The frame body (1) includes two die-cast parts (2), an upper extruded profile frame (4) and a lower extruded profile frame (12). The upper extrusion profile frame (4) and the lower extrusion profile frame (12) are arranged in an upward and downward position. Two installation stations are formed between the upper extrusion profile frame (4) and the lower extrusion profile frame (12). The two installation stations are located on the front and rear sides of the frame body (1) respectively. Each installation station is used to install one of the die-cast parts (2). The upper extrusion profile frame (4) is provided with two sets of connectors (10) on the side near the lower extrusion profile frame (12). The two sets of connectors (10) are detachably connected to the bottom of the two die-cast parts (2). The lower extrusion profile frame (12) is installed between the bottoms of the two die-cast parts (2). A battery mounting space (6) is formed between the two die-cast parts (2) in conjunction with the upper extrusion profile frame (4) and the lower extrusion profile frame (12). Both die-cast parts (2) are arc-shaped structures, and both die-cast parts (2) are made of die-cast aluminum. The bottom of the two die-cast parts (2) is provided with several mounting structures, including a first mounting structure (13) for mounting the shock-absorbing spring (9), a second mounting structure (14) for mounting the upper frame, a third mounting structure (15) for mounting the cargo container, and a fourth mounting structure (7) for mounting the thrust rod (8).

2. The die-cast vehicle frame according to claim 1, characterized in that, The upper extrusion profile frame (4) is provided with a fixing structure (5). The fixing structure (5) is located between two die-cast parts (2). The fixing structure (5) includes two I-shaped connecting frames (501). Both ends of the two I-shaped connecting frames (501) are fixedly connected to the upper extrusion profile frame (4). A rectangular installation space is formed between the two I-shaped connecting frames (501) and the upper extrusion profile frame (4). A support plate (3) is installed inside the rectangular installation space.

3. A die-cast vehicle frame according to claim 2, characterized in that, The support plate (3) has an upwardly bent connecting piece (301) connected to the middle of both the front and rear sides. The two connecting pieces (301) are detachably connected to two I-shaped connecting frames (501). The support plate (3) on the left and right sides of the two connecting pieces (301) is connected to abutment pieces (302). The two sets of abutment pieces (302) are respectively connected to two die-cast parts (2).

4. A die-cast vehicle frame according to claim 3, characterized in that, The upper extruded profile frame (4) and the connector (10) are provided with bolt mounting holes adapted to the two die-cast parts (2). The bottom of the two die-cast parts (2) on the side away from the connector (10) is detachably connected to a triangular support frame (11).

5. A die-cast vehicle frame according to claim 1, characterized in that, The first mounting structure (13) is a first connecting piece that is mounted on the die-cast part (2) and can be adapted to the shock-absorbing spring (9).

6. A die-cast vehicle frame according to claim 1, characterized in that, The second mounting structure (14) is a first fixing hole on the die-cast part that can be fitted and installed with the upper frame.

7. A die-cast vehicle frame according to claim 1, characterized in that, The third mounting structure (15) is a second fixing hole on the die-cast part that can be adapted to the container for installation.

8. A die-cast vehicle frame according to claim 1, characterized in that, The fourth mounting structure (7) is a second connecting piece that is mounted on the die-cast part (2) and can be adapted to be installed with the thrust rod (8).

9. A method for installing a die-cast vehicle frame, characterized in that, A die-cast vehicle frame according to any one of claims 1-8 includes the following processing steps: S1. Components to be prepared before installation: two die-cast parts (2), upper extruded profile frame (4), lower extruded profile frame (12), two I-type connecting frames (501) and connecting parts (10). S2. Install the support parts of the frame components that need to be connected in S1: Fix two sets of vertically downward connecting parts (10) to the bottom front and rear sides of the upper extrusion profile frame (4), place two die-cast parts (2) on the two installation positions respectively, align the bolt mounting holes on the upper extrusion profile frame (4) and connecting parts (10) with the bolt mounting holes between the two die-cast parts (2), then use bolts to tighten the connection, and install the lower extrusion profile frame (12) between the bottoms of the two die-cast parts (2) with bolts. S3. Install the chassis parts of the frame components that need to be connected in S1: Install the shock absorber spring (9), thrust rod (8) and cargo container at the bottom of the die casting (2) through the installation structure, and install the upper frame at the top of the die casting (2).

10. An unmanned vehicle, characterized in that, Including a die-cast frame as described in any one of claims 1-8.

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