Die clamping structure of die casting machine for integrated casting of automobile chassis

Abstract

This invention relates to a mold-closing structure for an integrated automotive chassis die-casting machine, comprising a detachable fixed mold assembly, a mold for casting an integrated chassis, a detachable movable mold assembly, and a tie rod. The fixed mold assembly has a tie rod hole, and the movable mold assembly forms a hollow tie rod column. The fixed mold assembly and the movable mold assembly are located at opposite ends of the mold, and the tie rod passes through the tie rod hole and the tie rod column. This mold-closing structure employs assembly technology and allows for larger mold dimensions, reducing manufacturing difficulty. It provides technical feasibility for integrated automotive chassis casting, effectively ensuring the structural strength of the manufactured integrated automotive chassis and thus guaranteeing its safety during use. This facilitates the promotion and application of the aforementioned mold-closing structure for integrated automotive chassis die-casting in the field of vehicle manufacturing technology.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, specifically to the mold-closing structure of an integrated casting and die-casting machine for automobile chassis. Background Technology

[0002] The automobile chassis consists of four parts: the transmission system, the running system, the steering system, and the braking system. The chassis's function is to support and mount the automobile engine and its various components and assemblies, shape the overall form of the automobile, receive power from the engine, enable the automobile to move, and ensure normal driving.

[0003] With the development of new energy vehicles, the market demand for integrated casting technology for automobile chassis is becoming increasingly strong. The existing largest tonnage die casting machines, such as Haitian's 8800T and Lijin's 9000T molds, can only cast one-third of the automobile chassis at a time, which cannot meet the requirements for integrated casting of automobile chassis.

[0004] Currently, the weight of a single die-casting mold for the largest tonnage exceeds 120 tons, posing significant challenges to casting, transportation, and processing. If the tonnage is further increased based on the existing mold technology, technological upgrades are required at each stage to cast and process the mold. This increases the difficulty of casting, transporting, and processing ultra-large integrated molds, thereby increasing the cost of manufacturing integrated chassis and the user's operating costs. This is detrimental to the promotion and application of ultra-large integrated molds in the field of vehicle manufacturing technology, and consequently affects the promotion and application of integrated automotive chassis in the market. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the present invention aims to provide a mold closing structure for an integrated casting and die casting machine for automobile chassis. This mold closing structure is simple and ingenious, detachable, easy to operate, and highly practical. It can effectively reduce the difficulty of casting, processing, and transportation of ultra-large molds, and is conducive to the promotion and application of the above-mentioned mold closing structure for an integrated casting and die casting machine for automobile chassis in the field of vehicle manufacturing technology.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a mold-closing structure for an integrated automotive chassis casting die-casting machine, comprising a detachable fixed mold assembly, a mold for casting an integrated chassis, a detachable moving mold assembly, and a tie rod. The fixed mold assembly has a tie rod hole, and the moving mold assembly forms a hollow tie rod column. The fixed mold assembly and the moving mold assembly are respectively located at both ends of the mold, and the tie rod passes through the tie rod hole and the tie rod column.

[0007] As a preferred embodiment of the present invention, the fixed mold assembly includes a fixed module and a positioning plate. The positioning plate is embedded between two fixed modules and is fixed by a locking mechanism to realize the assembly of the two fixed modules.

[0008] In a preferred embodiment of the present invention, there are two positioning plates, which are symmetrically arranged along the central axis of the mold assembly.

[0009] As a preferred embodiment of the present invention, the moving mold assembly includes three moving modules and a moving mold positioning plate. Each moving module has two tie rods. The moving mold positioning plate is embedded between two moving modules and fixed by a locking mechanism to realize the assembly between the two moving modules.

[0010] As a preferred embodiment of the present invention, the three moving modules are respectively fixed to the main support plate by the locking mechanism.

[0011] As a preferred embodiment of the present invention, the locking mechanism includes a super nut and a connecting bolt, wherein the super nut is fitted onto the connecting bolt.

[0012] As a preferred embodiment of the present invention, the connecting bolt is a double-ended bolt, and its middle section forms a stepped shaft.

[0013] As a preferred embodiment of the present invention, a reinforcing rib is provided between the two tie rods on each of the moving modules.

[0014] In a preferred embodiment of the present invention, the moving mold assembly has a main support plate, the end face of which is fitted to the end face of the mold.

[0015] In a preferred embodiment of the present invention, the moving module assembly is a frame structure.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: The die-casting machine mold-closing structure of this invention adopts a fixed mold assembly, a mold, and a moving mold assembly. Both the fixed mold assembly and the moving mold assembly utilize template splicing technology, which effectively reduces the difficulty of casting, processing, and transporting ultra-large templates, thereby reducing manufacturing costs. Simultaneously, the assembly technology of this mold-closing structure allows for larger template design dimensions, reducing manufacturing difficulty and providing technical feasibility for integrated casting of automotive chassis. It effectively ensures the structural strength of the manufactured integrated automotive chassis, thereby guaranteeing its safety during use. This facilitates the promotion and application of the aforementioned die-casting machine mold-closing structure for integrated automotive chassis casting in the field of vehicle manufacturing technology. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the mold closing structure of the integrated casting and die-casting machine for automobile chassis in this implementation.

[0018] Figure 2 This is a schematic diagram of the fixed mold assembly in the mold closing structure of the integrated casting and die-casting machine for automobile chassis in this implementation.

[0019] Figure 3 This is a partial structural cross-sectional view of the fixed mold component in the mold closing structure of the integrated casting and die-casting machine for automobile chassis in this embodiment;

[0020] Figure 4 This is a schematic diagram of the super nut in the mold closing structure of the integrated casting and die-casting machine for automobile chassis in this implementation.

[0021] Figure 5 This is a schematic diagram of the connecting bolts in the mold closing structure of the integrated casting and die-casting machine for automobile chassis in this implementation.

[0022] Figure 6 This is a schematic diagram of the mold structure in the mold-closing structure of the integrated casting and die-casting machine for automobile chassis in this implementation.

[0023] Figure 7 This is a schematic diagram of the moving mold assembly in the mold closing structure of the integrated casting and die-casting machine for automobile chassis in this implementation.

[0024] Reference numerals in the attached drawings: 1. Fixed mold assembly; 1-1. Fixed module; 1-2. Positioning plate; 1-3. Tie rod hole; 2. Mold; 2-1. Mold body; 2-2. Groove; 3. Moving mold assembly; 3-1. Main support plate; 3-2. Moving module; 3-3. Moving mold positioning plate; 3-4. Tie rod column; 3-5. Reinforcing rib; 4. Tie rod; 5. Locking mechanism; 5-1. Super nut; 5-2. Connecting bolt; 5-2-1. Stepped shaft. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] Example: Figures 1 to 7 As shown, the mold-closing structure of the integrated casting die-casting machine for automobile chassis mainly consists of a fixed mold assembly 1 with a detachable design, a mold 2 for casting the integrated chassis, a movable mold assembly 3 with a detachable design, and a tie rod 4. To ensure the stability of the mold-closing structure during manufacturing and use, the fixed mold assembly 1 has a tie rod hole 1-3, and the movable mold assembly 3 has a hollow tie rod column 3-4. The fixed mold assembly 1 and the movable mold assembly 3 are located at the two ends of the mold 2, respectively. The mold 2 is fixed between the fixed mold assembly 1 and the movable mold assembly 3 by passing the tie rod 4 through the tie rod hole 1-3 and the tie rod column 3-4.

[0027] In order to make the mold 2 better cover the mold surface, the mold 2 can be designed as a mold body 2-1 with a rectangular cross-section. In order to increase the contact area with the mold surface, grooves 2-2 can be provided on the mold body 2-1, or it can be designed into other shapes, not limited to grooves.

[0028] To ensure the assembly effect, the aforementioned moving mold assembly 3 also has a main support plate 3-1, the end face of which is fitted to the end face of the mold 2.

[0029] To reduce the difficulty of casting, processing, and transportation of ultra-large molds, thereby lowering manufacturing costs, the aforementioned fixed mold assembly 1 can be disassembled into a fixed module 1-1 and a positioning plate 1-2. The fixed module 1-1 forms a stepped section. After assembling two fixed modules 1-1, a rectangular groove is formed. The positioning plate 1-2 is then embedded in the rectangular groove and fixed by the locking mechanism 5, realizing the assembly between the two fixed modules 1-1. This reduces the weight of a single fixed module 1-1, making it easier to cast, process, and transport. To further reduce the weight of a single fixed module 1-1, two positioning plates 1-2 are used. The two positioning plates 1-2 are symmetrically arranged along the central axis of the fixed mold assembly 1, forming two symmetrical stepped sections on a single fixed module 1-1. That is, the assembly between the two fixed modules 1-1 is achieved through the two positioning plates 1-2, further reducing casting difficulty.

[0030] Similarly, in order to reduce the difficulty of casting, processing and transportation of ultra-large templates, and thus reduce the manufacturing cost, the above-mentioned moving mold assembly 3 in this embodiment is a frame structure, including three detachable moving modules 3-2 and a moving mold positioning plate 3-3. Each of the above-mentioned moving modules 3-2 has two of the above-mentioned tie rods 3-4. In order to facilitate assembly and reduce the weight of a single moving module 3-2, a stepped part is formed on the moving module 3-2. Two of the above-mentioned moving modules 3-2 are assembled to form a rectangular groove. The above-mentioned moving mold positioning plate 3-3 is embedded between the two above-mentioned moving modules 3-2 and fixed by the locking mechanism 5 to realize the assembly between the two above-mentioned moving modules 3-2.

[0031] To ensure the structural strength of the moving module assembly 3, each of the above-mentioned moving module 3-2 has a reinforcing rib 3-5 between the two tie rods 3-4.

[0032] The three moving modules 3-2 are respectively fixed to the main support plate 3-1 by the locking mechanism 5. The surface of the main support plate 3-1 is either flat or has a shape that matches the end face of the mold 2, so that the surface of the main support plate 3-1 fits against the end face of the mold 2, thereby ensuring the stability of the mold 2, and thus ensuring the stability of the processed parts and the quality of the finished products.

[0033] To further reduce the difficulty of casting, processing and transportation of ultra-large templates, the three aforementioned moving modules 3-2 can be divided into six, with each of the aforementioned moving modules 3-2 having a tie rod 3-4.

[0034] To ensure the connection strength at each joint, the locking mechanism 5 in this embodiment includes a super nut 5-1 and a connecting bolt 5-2, with the super nut 5-1 fitted onto the connecting bolt 5-2. When the size of the super nut 5-1 is M160, the preload of a single super nut 5-1 is 6300kN, which can effectively ensure the connection strength at each joint, thereby ensuring the structural strength of the mold closing structure.

[0035] Connecting bolt 5-2 is a double-ended bolt. Besides its connecting and fixing function, the double-ended bolt also has a positioning function, such as... Figure 5 As shown, the middle section of the double-ended bolt forms a stepped shaft 5-2-1. The stepped shaft 5-2-1 plays a positioning role at the connection between the fixed module 1-1 and the positioning plate 1-2, avoiding phenomena such as stripping.

[0036] The size of mold 2 is such that it almost completely covers the mold surface, thus providing technical support for the integration of the automotive chassis. In this embodiment, the dimensions of the six tie rods 4 and the main support plate 3-1 and moving module 3-2 in the moving mold assembly 3 can extend along the overall length of the mold closing structure, so that the outer dimensions of mold 2 can almost completely cover the mold surface. In this way, the entire mold closing structure will have good rigidity and strength under clamping force, ensuring the feasibility of template splicing.

[0037] The die-casting machine mold-closing structure in this embodiment adopts a fixed mold assembly 1, a mold 2, and a moving mold assembly 3. Both the fixed mold assembly 1 and the moving mold assembly 3 utilize template splicing technology, which effectively reduces the difficulty of casting, processing, and transporting ultra-large templates, thereby reducing manufacturing costs. Simultaneously, the assembly technology of this mold-closing structure allows for larger template design dimensions, reducing manufacturing difficulty and providing technical feasibility for integrated casting of automotive chassis. This effectively ensures the structural strength of the manufactured integrated automotive chassis, thus guaranteeing its safety during use. This is conducive to the promotion and application of the aforementioned die-casting machine mold-closing structure for integrated automotive chassis casting in the field of vehicle manufacturing technology.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0039] Although this document frequently uses reference numerals from the figures, such as 1. Fixed mold assembly; 1-1. Fixed module; 1-2. Positioning plate; 1-3. Tie rod hole; 2. Mold; 2-1. Mold body; 2-2. Groove; 3. Moving mold assembly; 3-1. Main support plate; 3-2. Moving module; 3-3. Moving mold positioning plate; 3-4. Tie rod column; 3-5. Reinforcing rib; 4. Tie rod; 5. Locking mechanism; 5-1. Super nut; 5-2. Connecting bolt; 5-2-1. Stepped shaft, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A mold-closing structure for an integrated casting and die-casting machine for automobile chassis, characterized in that: The system includes a detachable fixed mold assembly (1), a mold (2) for casting an integrated chassis, a detachable moving mold assembly (3), and a tie rod (4). The fixed mold assembly (1) includes a fixed module (1-1) and a positioning plate (1-2). The positioning plate (1-2) is embedded between two fixed modules (1-1) and fixed by a locking mechanism (5) to achieve the assembly of the two fixed modules (1-1). There are two positioning plates (1-2), and the two positioning plates (1-2) are positioned along the fixed mold assembly (1-1). The mold is symmetrically arranged along its central axis. The fixed mold assembly (1) also has a tie rod hole (1-3). The moving mold assembly (3) has a main support plate (3-1). The end face of the main support plate (3-1) is fitted to the end face of the mold (2). The moving mold assembly (3) also forms a hollow tie rod column (3-4). The fixed mold assembly (1) and the moving mold assembly (3) are located at the two ends of the mold (2), respectively. The tie rod (4) passes through the tie rod hole (1-3) and the tie rod column (3-4).

2. The mold closing structure of the integrated casting and die-casting machine for automobile chassis according to claim 1, characterized in that: The moving mold assembly (3) includes three moving modules (3-2) and a moving mold positioning plate (3-3). Each moving module (3-2) has two tie rods (3-4). The moving mold positioning plate (3-3) is embedded between two moving modules (3-2) and fixed by a locking mechanism (5) to realize the assembly between the two moving modules (3-2).

3. The mold closing structure of the integrated casting and die-casting machine for automobile chassis according to claim 2, characterized in that: The three moving modules (3-2) are respectively fixed to the main support plate (3-1) by the locking mechanism (5).

4. The mold closing structure of the integrated casting and die-casting machine for automobile chassis according to claim 3, characterized in that: The locking mechanism (5) includes a super nut (5-1) and a connecting bolt (5-2), wherein the super nut (5-1) is fitted onto the connecting bolt (5-2).

5. The mold closing structure of the integrated casting and die-casting machine for automobile chassis according to claim 4, characterized in that: The connecting bolt (5-2) is a double-ended bolt, and its middle section forms a stepped shaft (5-2-1).

6. The mold closing structure of the integrated casting and die-casting machine for automobile chassis according to claim 2, characterized in that: Each of the moving modules (3-2) has a reinforcing rib (3-5) between the two tie rods (3-4).

7. The mold closing structure of the integrated casting and die-casting machine for automobile chassis according to claim 1, characterized in that: The moving module component (3) is a frame structure.

Images