Aluminum alloy wheel hub rotary casting device

Abstract

The application discloses a rotating tilting casting device for an aluminum alloy wheel hub and relates to the field of wheel hub casting. The device comprises a rack mechanism which is used as a fixed base of the device and supports a connecting placement platform, two tilting mechanisms which are installed on the two sides of the rack mechanism and are used for the turning over and turning back of a mold, four side core-pulling mechanisms which are installed on the placement platform and are used for the opening and closing of four side molds, a lower ejection mechanism which is installed on the placement platform and is used for realizing the lifting of a lower mold, and an upper mold lifting and rotating assembly which is connected with the placement platform and is used for realizing the longitudinal opening and closing, rotation or casting ejection of an upper mold. The device can effectively cast a wheel hub mold with a size of 15-22 inches.

Description

Technical Field

[0001] This invention relates to the field of wheel hub casting, and more particularly to a rotary tilting casting device for aluminum alloy wheel hubs. Background Technology

[0002] As a key load-bearing component of a vehicle, automotive wheels must simultaneously meet requirements such as high strength, lightweight, fatigue resistance, and good heat dissipation. Currently, mainstream wheel casting processes include low-pressure casting, gravity casting, and squeeze casting. Among these, low-pressure casting, due to its ability to achieve automated production and its dense casting structure, has long held a dominant position. However, with the automotive industry's increasing demands for wheel performance (such as impact resistance and fatigue life) and diversified needs (such as large size and complex spoke structures), the limitations of low-pressure casting have gradually become apparent.

[0003] Gravity casting is a casting process that utilizes the gravity of molten metal (without an external pressure head) to fill the mold cavity. Compared with traditional low-pressure casting, it has some unique advantages. However, existing gravity casting equipment is mostly general-purpose casting machines, not specifically designed for the structural characteristics of wheel hubs (such as annular rims and radial spokes), which limits its large-scale application in wheel hub manufacturing. Therefore, there is an urgent need for specialized equipment optimized for wheel hub gravity casting to solve the aforementioned technical challenges. Summary of the Invention

[0004] To address the aforementioned technical problems, the objective of this invention is to provide a rotary tilting casting device for wheel hubs of a specific size.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an aluminum alloy wheel hub rotary tilting casting device, comprising: A frame mechanism serves as a fixed base for the device, supporting and connecting the placement platform; The two tilting mechanisms are installed on both sides of the frame mechanism and are used for the overall tilting and turning of the mold. The four-sided core-pulling mechanism is installed on the placement platform and is used for opening and closing the four side molds; A single ejection mechanism is installed on the placement platform to achieve the lifting and lowering of the lower mold; An upper mold lifting and rotating assembly is connected to a placement platform to realize the longitudinal opening and closing, rotation, or ejection of the casting of the upper mold.

[0006] As a preferred structure of the present invention, the tilting mechanism is driven by a hydraulic cylinder to achieve the rotation of the mold within a tilting angle of 0° to 90°.

[0007] As a preferred structure of the present invention, the initial mold closing position of the side core pulling mechanism can be adjusted; the side core pulling mechanism is driven by a hydraulic cylinder, guided by four guide pillars, and equipped with a limit switch to monitor the position status.

[0008] As a preferred structure of the present invention, the side core-pulling mechanism is adapted to 15-22 inch wheel hub molds.

[0009] As a preferred structure of the present invention, the lower ejection mechanism is connected to the lower mold through an automatic locking mechanism of a hydraulic cylinder; the lifting and lowering of the lower mold is driven by a hydraulic cylinder and equipped with a hydraulically controlled one-way valve to ensure the clamping force of the lower mold after mold closing.

[0010] As a preferred structure of the present invention, the upper mold lifting and rotating assembly includes a gear and rack swing cylinder, a fine-tuning mechanism, a locking mechanism, an ejector rod, and a flow divider and collector valve; the ejector rod is connected to the upper mold and is used to drive the longitudinal opening and closing, rotation, or ejection of the casting of the upper mold; the ejector rod is driven by the gear and rack swing cylinder, with a rotation angle of 180°, supporting two speed settings (fast and slow); the top of the gear and rack swing cylinder is provided with a fine-tuning mechanism to ensure the final flipping accuracy; the locking mechanism is driven by the gear and rack swing cylinder to ensure the clamping force of the upper mold after mold closing; the ejector rod is evenly distributed by the flow divider and collector valve.

[0011] As a preferred structure of the present invention, the lower mold, the upper mold and the four side molds together form a cavity for forming a wheel hub.

[0012] Compared with existing technologies, the aluminum alloy wheel hub rotary casting device provided by this invention can effectively cast wheel hub molds ranging from 15 to 22 inches. Furthermore, this invention has a compact structure, making it easy to integrate into automated production lines. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an aluminum alloy wheel hub rotary tilting casting device in this embodiment.

[0014] Figure 2 This is a schematic diagram of the frame mechanism in this embodiment.

[0015] Figure 3 This is a schematic diagram of the tilting mechanism in this embodiment.

[0016] Figure 4 This is a schematic diagram of the side core-pulling mechanism in this embodiment.

[0017] Figure 5 This is a schematic diagram of the lower ejection mechanism in this embodiment.

[0018] Figure 6 This is a schematic diagram of the upper mold lifting and rotating assembly in this embodiment.

[0019] Figure 7 This is a schematic diagram of the mold structure in this embodiment.

[0020] Figure 8This is a schematic diagram of the mold assembly for a rotary tilting casting device for aluminum alloy wheel hubs in this embodiment.

[0021] Among them, 1 is the frame mechanism; 2 is the tilting mechanism; 3 is the side core pulling mechanism; 4 is the ejection mechanism; 5 is the upper mold lifting and rotating assembly; 6 is the placement platform; 21 is the hydraulic cylinder; 31 is the side mold; 32 is the cylinder; 33 is the guide post; 34 is the limit switch; 41 is the lower mold; 42 is the automatic locking mechanism of the cylinder; 43 is the hydraulic control check valve; 51 is the gear and rack swing cylinder; 52 is the fine adjustment mechanism; 53 is the locking mechanism; 54 is the ejection rod; 55 is the flow divider and collector valve; and 56 is the upper mold. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Any modifications made to the technical solutions based on the technical concept proposed in this invention shall fall within the scope of protection of this invention.

[0023] like Figure 1-7 As shown, this embodiment discloses an aluminum alloy wheel hub rotary tilting casting device, comprising: A frame mechanism 1 serves as a fixed base for the device, supporting and connecting the placement platform 6; The second tilting mechanism 2 is installed on both sides of the frame mechanism 1 and is used for the overall tilting and turning of the mold. The four-sided core-pulling mechanism 3 is installed on the placement platform 6 and is used for opening and closing the four side molds 31; The ejection mechanism 4 is installed on the placement platform 6 and is used to realize the lifting and lowering of the lower mold 41; An upper mold lifting and rotating assembly 5 is connected to a placement platform 6 and is used to realize the longitudinal opening and closing, rotation, or casting ejection of the upper mold.

[0024] As a preferred structure in this embodiment, the tilting mechanism 2 is driven by a hydraulic cylinder 21 to achieve the rotation of the mold within a tilting angle of 0° to 90°.

[0025] As a preferred structure in this embodiment, the initial mold closing position of the side core pulling mechanism 3 can be adjusted; the side core pulling mechanism 3 is driven by the hydraulic cylinder 32, guided by four guide pillars 33, and equipped with a limit switch 34 to monitor the position status.

[0026] As a preferred structure in this embodiment, the side core-pulling mechanism 3 is adapted to 15-22 inch wheel hub molds.

[0027] As a preferred structure in this embodiment, the lower ejection mechanism 4 is connected to the lower mold 41 through the hydraulic cylinder automatic locking mechanism 42; the lifting and lowering of the lower mold is driven by the hydraulic cylinder and equipped with a hydraulic control check valve 43 to ensure the clamping force of the lower mold 41 after mold closing.

[0028] As a preferred structure in this embodiment, the upper mold lifting and rotating assembly 5 includes a gear and rack swing cylinder 51, a fine-tuning mechanism 52, a locking mechanism 53, an ejector rod 54, and a flow divider and collector valve 55. The ejector rod 54 is connected to the upper mold 56 and is used to drive the longitudinal opening and closing, rotation, or casting ejection of the upper mold. The ejector rod 54 is driven by the gear and rack swing cylinder 51, with a rotation angle of 180°, and supports two speed settings: fast and slow. The top of the gear and rack swing cylinder 51 is provided with a fine-tuning mechanism 52 to ensure the final flipping accuracy. The locking mechanism 53 is driven by the gear and rack swing cylinder 51 to ensure the clamping force of the upper mold after mold closing. The ejector rod 54 is evenly distributed by the flow divider and collector valve 55.

[0029] As a preferred structure in this embodiment, the lower mold 41, the upper mold 56 and the four side molds 31 together form a cavity for forming a wheel hub.

[0030] Casting process: Before casting, all components are reset to zero. The tilting mechanism tilts the mold by 90°. After casting, the tilting mechanism returns the mold to its original position. Molten aluminum is then filled into the mold. The filling speed can be freely adjusted by the proportional valve. After filling, the curing process begins. After curing, the side core-pulling mechanism opens on all four sides, the lower ejection mechanism ejects the casting, and the upper mold lifting and rotating assembly lifts and rotates the casting by 180°. Subsequently, a robot or manual removal can be used to take out the formed wheel hub.

[0031] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A rotary tilting casting device for aluminum alloy wheel hubs, characterized in that, include: A frame mechanism (1) is used as a fixed base for the device to support the connection and placement platform (6). The two tilting mechanisms (2) are installed on both sides of the frame mechanism (1) and are used for the overall tilting and turning of the mold. The four-sided core-pulling mechanism (3) is installed on the placement platform (6) and is used for opening and closing the four side molds (31); A lower ejection mechanism (4) is installed on the placement platform (6) to realize the lifting and lowering of the lower mold (41); An upper mold lifting and rotating assembly (5) is connected to a placement platform (6) to realize the longitudinal opening and closing, rotation or casting ejection of the upper mold.

2. The aluminum alloy wheel hub rotary tilting casting device according to claim 1, characterized in that: The tilting mechanism (2) is driven by a hydraulic cylinder (21) to enable the mold to flip within a tilting angle of 0° to 90°.

3. The aluminum alloy wheel hub rotary tilting casting device according to claim 1, characterized in that: The initial mold closing position of the side core pulling mechanism (3) can be adjusted; the side core pulling mechanism (3) is driven by a hydraulic cylinder (32), guided by four guide pillars (33), and equipped with a limit switch (34) to monitor the position status.

4. The aluminum alloy wheel hub rotary tilting casting device according to claim 1 or 3, characterized in that: The side core-pulling mechanism (3) is adapted to 15~22 inch wheel hub molds.

5. The aluminum alloy wheel hub rotary tilting casting device according to claim 1, characterized in that: The lower ejection mechanism (4) is connected to the lower mold (41) through the hydraulic cylinder automatic locking mechanism (42); the lower mold is lifted and lowered by the hydraulic cylinder and equipped with a hydraulic control check valve (43) to ensure the clamping force of the lower mold (41) after mold closing.

6. The aluminum alloy wheel hub rotary tilting casting device according to claim 1, characterized in that: The upper mold lifting and rotating assembly (5) includes a gear and rack swing cylinder (51), a fine-tuning mechanism (52), a locking mechanism (53), an ejector rod (54), and a flow divider and collector valve (55). The ejector rod (54) is connected to the upper mold (56) and is used to drive the longitudinal opening and closing, rotation, or ejection of the casting of the upper mold. The ejector rod (54) is driven by the gear and rack swing cylinder (51) and has a rotation angle of 180°, supporting two speeds of fast and slow. The top of the gear and rack swing cylinder (51) is provided with a fine-tuning mechanism (52) to ensure the final flipping accuracy. The locking mechanism (53) is driven by the gear and rack swing cylinder (51) to ensure the clamping force of the upper mold after mold closing. The ejector rod (54) is evenly distributed by the flow divider and collector valve (55).

7. The aluminum alloy wheel hub rotary tilting casting device according to claim 6, characterized in that: The lower mold (41), upper mold (56) and four side molds (31) together form a cavity for forming the wheel hub.

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