Automobile aluminum alloy die casting and die casting equipment

By designing and installing grooves and connecting holes in the body of the aluminum alloy die casting, and using a demolding mechanism to separate the casting from the mold with high-pressure gas, the problems of finished casting strength and production cost are solved, achieving efficient and low-cost casting production.

CN224254183UActive Publication Date: 2026-05-19HELANG TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HELANG TECH (JIANGSU) CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, casting rods require a large thrust to overcome the suction pressure, which affects the strength of the finished casting and results in high production costs due to the use of multiple molds.

Method used

An aluminum alloy die-cast body with mounting grooves, connecting holes and sealing ring grooves was designed, and a demolding mechanism including an air inlet pipe, seals, protective components and telescopic rods was adopted. High-pressure gas was used to assist in the separation of the casting from the mold, reducing mechanical interference to the casting.

Benefits of technology

It enables the production of multiple castings from a single mold, reducing production costs, and protects the strength of the finished castings through an efficient demolding mechanism, simplifying the process of the robotic arm removing the castings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of die casting equipment, in particular to an automobile aluminum alloy die casting and die casting equipment. A hydraulic mechanism is arranged on one side of the top of the rack, a casting mold is arranged on the rack and comprises a fixed mold and a movable mold, and casting cavities are formed in the fixed mold and the movable mold; the fixed die is arranged on the rack, a plurality of guide rods are arranged between the fixed die and the hydraulic mechanism in parallel, one end of each guide rod is fixedly connected with the fixed die, and the other end of each guide rod is fixedly connected with the hydraulic mechanism; the moving die is arranged on the rack in a sliding mode, and the guide rod penetrates through the moving die and is connected with the moving die in a sliding mode; and a plurality of groups of demolding mechanisms are arranged. Due to the arrangement of the demolding mechanism, when the casting needs to be separated from the casting mold, the air inlet pipe introduces high-pressure air into the casting cavity to separate the casting from the casting cavity, and the casting can be taken out by a manipulator more conveniently under the condition that the casting is not influenced.
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Description

Technical Field

[0001] This utility model relates to the field of die casting equipment technology, specifically to an automotive aluminum alloy die casting part and die casting equipment. Background Technology

[0002] With the development of the automotive industry, aluminum alloy die castings are increasingly widely used in the manufacturing of automotive parts. Aluminum alloy die castings have advantages such as light weight, high strength, and good corrosion resistance. These characteristics make them the preferred material for many automotive parts. In particular, many related parts of automotive engines are produced using die casting technology.

[0003] Automotive air conditioner housings are die-cast parts made of aluminum alloy through pressure casting. Automotive air conditioner housings require multiple sets of die-cast parts to be assembled. Die-cast parts produced by a single set of molds cannot be directly assembled into automotive air conditioner housings. Therefore, multiple molds are needed to produce different types of die-cast parts, which greatly increases production costs.

[0004] Chinese Patent No. CN222066891U discloses an aluminum alloy die-casting part for an automobile engine and a die-casting equipment. The die-casting part includes a casting body, with a buffer plate fixedly attached to one end of the casting body. The buffer plate is inclined and has two suspension holes extending through it. A suspension ring is fixedly attached to the other end of the casting body, and the suspension ring is elliptical in shape. This invention, through the inclined buffer plate and suspension ring on the engine cover, can protect both ends of the cover. In the event of a collision, it can protect the cover. The inclined arrangement of the buffer plate and the shape of the suspension ring maximize the buffering protection capacity. Furthermore, the buffer plate and suspension ring can be used to lift the cover, combining buffer protection and lifting structure in a practical and easy-to-use manner.

[0005] However, the above technical solution has the following shortcomings: When using a casting rod in conjunction with a robotic arm to eject the formed casting from the mold, the casting rod needs to apply a large pushing force to the casting to overcome the suction pressure between the casting and the mold. The contact area between the casting rod and the casting is also very limited, which can easily affect the strength of the finished casting. Utility Model Content

[0006] The purpose of this utility model is to address the problems existing in the background technology by proposing an automotive aluminum alloy die-casting part and a die-casting equipment.

[0007] The technical solution of this utility model is as follows: On the one hand, this utility model proposes an automotive aluminum alloy die casting part, including a die casting part body, the surface of which is provided with an installation groove, the installation groove is provided with multiple installation slots, the edge of the die casting part body is provided with multiple connecting holes, and a sealing ring groove is provided on the surface of the die casting part body between the installation groove and the connecting holes.

[0008] On the other hand, this utility model also proposes a die-casting equipment for processing the above-mentioned automotive aluminum alloy die-casting parts, comprising:

[0009] The frame has a hydraulic mechanism on one side of its top, and a casting mold is set on the frame. The casting mold includes a fixed mold and a movable mold, and both the fixed mold and the movable mold have casting cavities.

[0010] The fixed mold is mounted on the frame. Multiple guide rods are arranged parallel to the hydraulic mechanism. One end of the guide rod is fixedly connected to the fixed mold, and the other end of the guide rod is fixedly connected to the hydraulic mechanism.

[0011] The movable mold is slidably mounted on the frame. A guide rod passes through the movable mold and is slidably connected to it. The output end of the hydraulic mechanism is connected to the movable mold to drive its movement.

[0012] The demolding mechanism is provided in multiple sets, which are set on the moving mold and the fixed mold for separating the casting from the moving mold and the fixed mold.

[0013] Preferably, the demolding mechanism includes an air inlet pipe, a seal, a protective component, and a telescopic rod; a movable cavity is provided inside the casting mold, which is connected to the casting cavity; the air inlet pipe is installed on the casting mold, and its outlet is connected to the movable cavity; the seal is slidably installed inside the movable cavity; the telescopic rod is installed on the casting mold, with its working end extending into the interior of the movable cavity; the protective component is installed inside the movable cavity, with one end connected to the telescopic rod and the other end connected to the seal.

[0014] Preferably, the protective assembly includes a movable box, a snap-fit ​​assembly, a reset assembly, and a connecting assembly; the movable box is slidably disposed within the movable cavity; two sets of snap-fit ​​assemblies are provided, with one end of the snap-fit ​​assembly disposed within the movable box and the other end extending to the outside of the movable box; the reset assembly is disposed within the movable box, with one end connected to the snap-fit ​​assembly and the other end extending to the outside of the movable box; one end of the connecting assembly is connected to the telescopic rod, and the other end of the connecting assembly is connected to the reset assembly.

[0015] Preferably, the reset assembly includes a movable plate, a movable rod, and a reset spring; the movable plate is slidably disposed inside the movable box, one end of the movable rod is fixedly connected to the movable plate, the other end of the movable rod passes through the movable box and extends to the outside of the movable box, one end of the reset spring is fixedly connected to the movable plate, and the other end of the reset spring is fixedly connected to the inner wall of the movable box.

[0016] Preferably, each snap-fit ​​assembly includes a snap-fit ​​block and a connecting rod; one end of the snap-fit ​​block is slidably disposed inside the movable box, and the other end of the snap-fit ​​block passes through the movable box and extends to the outside of the movable box; the inner wall of the movable cavity is provided with a snap-fit ​​groove adapted to the snap-fit ​​block; the connecting rod is movably disposed inside the movable box; one end of the connecting rod is rotatably connected to the snap-fit ​​block, and the other end of the connecting rod is rotatably connected to the movable plate.

[0017] Preferably, the connecting assembly includes a connecting cylinder and a limiting plate; the connecting cylinder is fixedly connected to the telescopic rod, the movable rod passes through the connecting cylinder and extends into the interior of the connecting cylinder, the limiting plate is movably disposed inside the connecting cylinder, and the limiting plate is fixedly connected to the movable rod.

[0018] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0019] This invention assembles an automotive air conditioner housing from two alloy die-cast parts. During production, only a single set of molds is needed to produce the aluminum alloy die-cast parts, which greatly reduces production costs.

[0020] This invention, through the setting of a demolding mechanism, allows the telescopic rod to move the sealing component when the casting needs to be separated from the casting mold. The air inlet pipe connects with the casting cavity, and high-pressure gas is introduced into the casting cavity through the air inlet pipe to separate the casting from the casting cavity. This makes it easier for the robotic arm to remove the casting without affecting the casting. Attached Figure Description

[0021] Figure 1 This is a perspective view of a die-casting device in one embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the fixed mold in one embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the fixed mold in one embodiment of the present invention;

[0024] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a cross-sectional view of the protective component in one embodiment of the present invention;

[0026] Figure 6 This is a perspective view of an aluminum alloy die-casting part in one embodiment of the present invention.

[0027] Reference numerals: 1. Frame; 21. Fixed mold; 22. Moving mold; 3. Hydraulic mechanism; 41. Air inlet pipe; 42. Seal; 43. Telescopic rod; 441. Movable box; 4421. Snap-fit ​​block; 4422. Connecting rod; 4423. Snap-fit ​​groove; 4431. Movable plate; 4432. Movable rod; 4433. Return spring; 4441. Connecting cylinder; 4442. Limiting plate; 45. Movable cavity; 5. Casting cavity; 6. Die-casting body; 7. Mounting groove; 8. Mounting slot; 9. Connecting hole; 10. Sealing ring groove; 11. Guide rod. Detailed Implementation

[0028] Example 1

[0029] like Figure 6 As shown, the present invention proposes an automotive aluminum alloy die-casting part, including a die-casting body 6, the surface of which is provided with an installation groove 7, and multiple installation slots 8 are provided in the installation groove 7. Multiple connecting holes 9 are provided through the edge of the die-casting body 6, and a sealing ring groove 10 is provided on the surface of the die-casting body 6 between the installation groove 7 and the connecting holes 9.

[0030] Example 2

[0031] like Figures 1-5 As shown, the present invention proposes a die-casting equipment for processing the above-mentioned automotive aluminum alloy die-casting parts, including a frame 1, a casting mold and a demolding mechanism;

[0032] A hydraulic mechanism 3 is provided on one side of the top of the frame 1. A casting mold is provided on the frame 1. The casting mold includes a fixed mold 21 and a movable mold 22. Both the fixed mold 21 and the movable mold 22 are provided with casting cavities 5.

[0033] The fixed mold 21 is set on the frame 1. Multiple guide rods 11 are arranged in parallel between the fixed mold 21 and the hydraulic mechanism 3. One end of the guide rod 11 is fixedly connected to the fixed mold 21, and the other end of the guide rod 11 is fixedly connected to the hydraulic mechanism 3.

[0034] The movable mold 22 is slidably mounted on the frame 1. The guide rod 11 passes through the movable mold 22 and is slidably connected to the movable mold 22. The output end of the hydraulic mechanism 3 is connected to the movable mold 22 to drive the movable mold 22 to move.

[0035] The demolding mechanism is provided in multiple sets, which are set on the moving mold 22 and the fixed mold 21 for separating the casting from the moving mold 22 and the fixed mold 21.

[0036] like Figure 2-5As shown, the demolding mechanism includes an air inlet pipe 41, a seal 42, a protective component, and a telescopic rod 43. A movable cavity 45 is provided inside the casting mold, which is connected to the casting cavity 5. The air inlet pipe 41 is installed on the casting mold, and the inlet of the air inlet pipe 41 is connected to high-pressure gas. The outlet of the air inlet pipe 41 is connected to the movable cavity 45. The seal 42 is slidably installed in the movable cavity 45. The telescopic rod 43 is installed on the casting mold, and the working end of the telescopic rod 43 extends into the interior of the movable cavity 45. The protective component is installed in the movable cavity 45, with one end connected to the telescopic rod 43 and the other end connected to the seal 42.

[0037] like Figure 2-5 As shown, the protective assembly includes a movable box 441, a snap-fit ​​assembly, a reset assembly, and a connecting assembly. The movable box 441 is slidably disposed within the movable cavity 45. Two sets of snap-fit ​​assemblies are provided, with one end of the snap-fit ​​assembly disposed within the movable box 441 and the other end extending to the outside of the movable box 441. The reset assembly is disposed within the movable box 441, with one end connected to the snap-fit ​​assembly and the other end extending to the outside of the movable box 441. One end of the connecting assembly is connected to the telescopic rod 43, and the other end of the connecting assembly is connected to the reset assembly.

[0038] like Figure 5 As shown, the reset assembly includes a movable plate 4431, a movable rod 4432, and a reset spring 4433. The movable plate 4431 is slidably disposed inside the movable box 441. One end of the movable rod 4432 is fixedly connected to the movable plate 4431, and the other end of the movable rod 4432 passes through the movable box 441 and extends to the outside of the movable box 441. One end of the reset spring 4433 is fixedly connected to the movable plate 4431, and the other end of the reset spring 4433 is fixedly connected to the inner wall of the movable box 441.

[0039] like Figure 5 As shown, each set of snap-fit ​​components includes a snap-fit ​​block 4421 and a connecting rod 4422; one end of the snap-fit ​​block 4421 is slidably disposed in the movable box 441, and the other end of the snap-fit ​​block 4421 passes through the movable box 441 and extends to the outside of the movable box 441; the inner wall of the movable cavity 45 is provided with a snap-fit ​​groove 4423 that is adapted to the snap-fit ​​block 4421; the connecting rod 4422 is movably disposed in the movable box 441; one end of the connecting rod 4422 is rotatably connected to the snap-fit ​​block 4421, and the other end of the connecting rod 4422 is rotatably connected to the movable plate 4431.

[0040] The connecting assembly includes a connecting cylinder 4441 and a limiting plate 4442; the connecting cylinder 4441 is fixedly connected to the telescopic rod 43, the movable rod 4432 passes through the connecting cylinder 4441 and extends into the interior of the connecting cylinder 4441, the limiting plate 4442 is movably disposed inside the connecting cylinder 4441, and the limiting plate 4442 is fixedly connected to the movable rod 4432.

[0041] Open the telescopic rod 43 and the hydraulic mechanism 3. The telescopic rod 43 works to push the movable box 441 and the seal 42 to slide through the connecting cylinder 4441. The seal 42 slides to seal the outlet of the air inlet pipe 41. At the same time, the movable plate 4431 moves under the action of the return spring 4433. The movement of the movable plate 4431 pushes the locking block 4421 into the locking groove 4423 through the connecting rod 4422, limiting and fixing the movable box 441, and thus fixing the seal 42 to prevent the seal 42 from being pushed open during the die casting process. The hydraulic mechanism 3 works to drive the movable mold 22 to move and contact the fixed mold 21 to close the mold. Aluminum alloy solution is added between the movable mold 22 and the fixed mold 21 and left to solidify. When the movable mold 22 needs to be opened, the telescopic rod 43 retracts, causing the connecting cylinder 4441 to move. The movement of the connecting cylinder 4441 drives the movable rod 4432 and the movable plate 4431 to move through the limit plate 4442. The movement of the movable plate 4431 drives the locking block 4421 to disengage from the locking groove 4423 and retract into the movable box 441 through the connecting rod 4422. The telescopic rod 43 continues to retract, driving the movable box 441 and the sealing element 42 to move. The movement of the sealing element 42 connects the air inlet pipe 41 to the casting cavity 5. The air inlet pipe 41 introduces high-pressure gas into the casting cavity 5, causing the casting to separate from the casting cavity 5. The hydraulic mechanism 3 works, causing the movable mold 22 to move away from the fixed mold 21, thereby opening the movable mold 22 and the fixed mold 21.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automotive aluminum alloy die-casting part, characterized in that, The die-cast body (6) has an installation groove (7) on its surface, and multiple installation slots (8) are provided in the installation groove (7). Multiple connecting holes (9) are provided through the edge of the die-cast body (6). A sealing ring groove (10) is provided on the surface of the die-cast body (6) between the installation groove (7) and the connecting holes (9).

2. A die-casting equipment for processing the automotive aluminum alloy die-casting parts as described in claim 1, characterized in that, include: The frame (1) has a hydraulic mechanism (3) on one side of its top. The frame (1) is equipped with a casting mold, which includes a fixed mold (21) and a movable mold (22). Both the fixed mold (21) and the movable mold (22) have casting cavities (5). A fixed mold (21) is set on the frame (1). Multiple guide rods (11) are arranged in parallel between the fixed mold (21) and the hydraulic mechanism (3). One end of the guide rod (11) is fixedly connected to the fixed mold (21), and the other end of the guide rod (11) is fixedly connected to the hydraulic mechanism (3). The movable mold (22) is slidably mounted on the frame (1). The guide rod (11) passes through the movable mold (22) and is slidably connected to the movable mold (22). The output end of the hydraulic mechanism (3) is connected to the movable mold (22) to drive the movable mold (22) to move. The demolding mechanism is provided in multiple sets, which are set on the moving mold (22) and the fixed mold (21) for the separation of the casting from the moving mold (22) and the fixed mold (21).

3. The die-casting equipment according to claim 2, characterized in that, The demolding mechanism includes an air inlet pipe (41), a seal (42), a protective component, and a telescopic rod (43). A movable cavity (45) is provided inside the casting mold, and the movable cavity (45) is connected to the casting cavity (5). The air inlet pipe (41) is set on the casting mold, and the outlet of the air inlet pipe (41) is connected to the movable cavity (45). The seal (42) is slidably set in the movable cavity (45). The telescopic rod (43) is set on the casting mold, and the working end of the telescopic rod (43) extends into the interior of the movable cavity (45). The protective component is set in the movable cavity (45), and one end of the protective component is connected to the telescopic rod (43), and the other end of the protective component is connected to the seal (42).

4. The die-casting equipment according to claim 3, characterized in that, The protective assembly includes a movable box (441), a snap-fit ​​assembly, a reset assembly, and a connecting assembly. The movable box (441) is slidably disposed in the movable cavity (45). There are two sets of snap-fit ​​assemblies. One end of the snap-fit ​​assembly is disposed inside the movable box (441), and the other end of the snap-fit ​​assembly extends to the outside of the movable box (441). The reset assembly is disposed inside the movable box (441). One end of the reset assembly is connected to the snap-fit ​​assembly, and the other end of the reset assembly extends to the outside of the movable box (441). One end of the connecting assembly is connected to the telescopic rod (43), and the other end of the connecting assembly is connected to the reset assembly.

5. The die-casting equipment according to claim 4, characterized in that, The reset assembly includes a movable plate (4431), a movable rod (4432), and a reset spring (4433). The movable plate (4431) is slidably disposed inside the movable box (441). One end of the movable rod (4432) is fixedly connected to the movable plate (4431), and the other end of the movable rod (4432) passes through the movable box (441) and extends to the outside of the movable box (441). One end of the reset spring (4433) is fixedly connected to the movable plate (4431), and the other end of the reset spring (4433) is fixedly connected to the inner wall of the movable box (441).

6. The die-casting equipment according to claim 5, characterized in that, Each snap-fit ​​assembly includes a snap-fit ​​block (4421) and a connecting rod (4422); one end of the snap-fit ​​block (4421) is slidably disposed inside the movable box (441), and the other end of the snap-fit ​​block (4421) passes through the movable box (441) and extends to the outside of the movable box (441). The inner wall of the movable cavity (45) is provided with a snap-fit ​​groove (4423) that is adapted to the snap-fit ​​block (4421). The connecting rod (4422) is movably disposed inside the movable box (441), one end of the connecting rod (4422) is rotatably connected to the snap-fit ​​block (4421), and the other end of the connecting rod (4422) is rotatably connected to the movable plate (4431).

7. The die-casting equipment according to claim 6, characterized in that, The connecting assembly includes a connecting cylinder (4441) and a limiting plate (4442); the connecting cylinder (4441) is fixedly connected to the telescopic rod (43), the movable rod (4432) passes through the connecting cylinder (4441) and extends into the interior of the connecting cylinder (4441), the limiting plate (4442) is movably disposed inside the connecting cylinder (4441), and the limiting plate (4442) is fixedly connected to the movable rod (4432).