Five-mold-opening hub structure mold

Abstract

The utility model discloses a five-open-die hub structure die which comprises a bottom plate and side dies, the center of the top of the bottom plate is connected with a lower die, the top of the lower die is provided with an upper die, the top of the upper die is connected with an upper die plate, a plurality of sets of side dies are arranged between the bottom plate and the upper die plate, and the lower die and the upper die are arranged among the plurality of sets of side dies. A triangular block is arranged between every two adjacent sets of side dies, a liquid rising pipe is arranged in the center of the bottom of the bottom plate, a die cavity is formed between the lower die and the upper die and communicated with the liquid rising pipe, and the five oil cylinders drive the five side dies to be opened at the same time. The casting defects caused by non-uniform cooling are effectively avoided, the qualified product percent of pass of the five-spoke hub casting is greatly improved, and the improvement of the qualified product percent of pass means that the number of unqualified products is reduced in the production process, so that the production cost is reduced, and the waste of materials is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wheel hub mold technology, specifically relating to a five-opening wheel hub structure mold. Background Technology

[0002] In the automotive and machinery manufacturing industries, wheel hubs are key components whose quality and production efficiency directly affect the performance of the vehicle and the manufacturing cost. As the automotive industry demands more diverse wheel hub designs, lighter structures, and higher performance reliability, the processing requirements for wheel hubs are constantly increasing.

[0003] Existing wheel hub casting molds mostly adopt a four-opening mold structure. When casting five-spoke wheel hubs, due to the limitations of this structure, it is difficult to achieve uniform cooling of the five window areas. Uneven cooling will cause the wheel hub casting to generate large internal stress during solidification, resulting in casting defects such as shrinkage cavities and slag holes. These defects not only increase the scrap rate of the product and increase the production cost, but may also affect the mechanical properties of the wheel hub and threaten driving safety. Utility Model Content

[0004] The purpose of this utility model is to provide a five-part mold for a wheel hub structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a five-part mold for a wheel hub structure, comprising:

[0006] A base plate, wherein a lower mold is connected to the top center of the base plate and an upper mold is provided on the top of the lower mold; an upper template is connected to the top of the upper mold.

[0007] The side mold is provided in several groups, and the several groups of side molds are all located between the base plate and the upper template, and the lower mold and the upper mold are located between the several groups of side molds. A triangular block is provided between two adjacent groups of side molds.

[0008] Preferably, a riser pipe is provided at the center of the bottom of the base plate, and a mold cavity is provided between the lower mold and the upper mold, and the mold cavity is connected to the riser pipe.

[0009] Preferably, the upper template is provided with a top rod plate at the top and a top rod pressure plate at the top of the top rod plate.

[0010] Preferably, the top of the top rod pressure plate is connected to several top rods, and the other end of the top rods can be movably inserted through the top rod plate and the upper template.

[0011] Preferably, the upper template is connected to a plurality of sleeves and a sleeve rod is slidably connected inside the sleeve, and one end of the sleeve rod is connected to the top rod plate.

[0012] Preferably, a spring is connected between the sleeve and the sleeve rod.

[0013] Preferably, the triangular block has a hollow groove, and the base plate has several slots.

[0014] Preferably, the surface of the side mold is provided with a contour groove that matches the outer wall of the lower mold and the upper mold, and a connecting block is connected to the center of the top of the push rod pressure plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) By driving the five side molds to open simultaneously through five oil cylinders, this five-mold design can cool the five windows of the five-spoke wheel hub evenly at the same time, effectively avoiding casting defects caused by uneven cooling, reducing shrinkage cavities, slag holes and other problems, greatly improving the yield of the five-spoke wheel hub castings. The improvement of the yield means a reduction in the number of defective products in the production process, thereby reducing production costs, reducing material waste and improving the economic benefits of the enterprise.

[0017] (2) The five-mold wheel hub structure mold has a reasonable workflow design and the components work together to make the whole casting process smoother and more efficient. During the mold closing process, the upper mold plate drives the upper mold and the lower mold to close in place first. Then, the five side mold cylinders drive the five side molds to move inward to close the mold. This orderly mold closing method ensures the sealing and accuracy of the mold cavity and provides good conditions for the casting of aluminum molten metal. During the mold opening and ejection process, the five side mold cylinders drive the side molds to move outward to open the mold first. Then, the upper mold plate drives the upper mold and the wheel hub casting to move upward. Finally, through the cooperation of the tray on the casting machine and the mold ejector mechanism, the wheel hub casting is accurately transported to the next process. The whole process has a high degree of automation, reduces manual intervention, improves production efficiency, shortens the production cycle, and is conducive to the company to achieve large-scale production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] In the diagram: 1. Base plate; 2. Lower mold; 3. Upper mold; 4. Upper template; 5. Side mold; 6. Triangular block; 7. Lifting pipe; 8. Mold cavity; 9. Ejector plate; 10. Ejector pressure plate; 11. Ejector; 12. Sleeve; 13. Sleeve rod; 14. Hollow groove; 15. Slot; 16. Contour groove; 17. Connecting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] This utility model provides, for example Figure 1-3 The five-part mold for a wheel hub structure shown includes:

[0025] A base plate 1, a lower mold 2 is connected to the top center of the base plate 1 and an upper mold 3 is provided on the top of the lower mold 2, and an upper template 4 is connected to the top of the upper mold 3;

[0026] Side mold 5, the side mold 5 is provided in several groups, the several groups of side mold 5 are all located between the base plate 1 and the upper template 4, and the lower mold 2 and the upper mold 3 are located between the several groups of side mold 5, and a triangular block 6 is provided between two adjacent groups of side mold 5.

[0027] A liquid riser pipe 7 is provided at the center of the bottom of the base plate 1. A mold cavity 8 is provided between the lower mold 2 and the upper mold 3 and the mold cavity 8 is connected to the liquid riser pipe 7. The liquid riser pipe 7 is located at the center of the bottom of the base plate 1 and can accurately and efficiently transport liquid from the bottom of the base plate 1 to the mold cavity 8.

[0028] The upper template 4 is provided with a top rod plate 9 at the top, and a top rod pressure plate 10 is provided at the top of the top rod plate 9.

[0029] The top of the top rod pressure plate 10 is connected to several top rods 11, and the other end of the top rod 11 can be moved through the top rod plate 9 and the upper template 4.

[0030] The upper template 4 is connected to several sleeves 12, and a sleeve rod 13 is slidably connected inside the sleeve 12. One end of the sleeve rod 13 is connected to the top rod plate 9. A spring is connected between the sleeve 12 and the sleeve rod 13. When the force of pressing the top rod pressure plate 10 downwards disappears from the top rod plate 9, the elastic potential energy of the spring will be converted into kinetic energy, pushing the sleeve rod 13 to slide inside the sleeve 12, so that the top rod plate 9 and the top rod pressure plate 10 return to their initial positions, ensuring that the mechanical structure can repeat the operation according to the predetermined working cycle.

[0031] The triangular block 6 has a hollow groove 14, and the base plate 1 has a number of slots 15. The hollow groove 14 and the slots 15 can reduce the amount of material used in the triangular block 6 and the base plate 1, and reduce the overall structural weight.

[0032] The surface of the side mold 5 is provided with a contour groove 16 that matches the outer wall of the lower mold 2 and the upper mold 3. The contour groove matches the shape of the outer wall of the lower mold 2 and the upper mold 3, forming a positioning stop when the mold is closed, ensuring that the upper and lower molds are accurately aligned along the contour groove 16, and avoiding product size deviation caused by misalignment. A connecting block 17 is connected to the top center of the ejector plate 10. The connecting block 17 can be connected to a hydraulic cylinder. When the equipment drives the hydraulic cylinder, it can drive the connecting block 17 to move downward, thereby driving the ejector plate 10 to push the ejector 11 synchronously, and ejecting the molded product from the mold cavity.

[0033] When casting the wheel hub, the upper mold plate 3 moves downward under the drive of the casting machine's transmission mechanism (cylinder). The upper mold plate 3 moves downward together with the lower mold 2, so that the upper mold 3 can accurately close with the lower mold 2, forming a closed structure at the bottom and top of the mold cavity 8. Then, the five side mold cylinders 5 on the casting machine start to work. The pistons inside the cylinders move linearly under the pressure of hydraulic oil, driving the five sets of side molds 5 to move closer to the upper mold 3. The triangular blocks 6 between two adjacent sets of side molds 5 can stabilize the position of the side molds 5 and strengthen the mold structure during the movement of the side molds 5. When the side molds 5 move to the predetermined position, they can close the side of the mold. At this time, the entire mold is closed.

[0034] After the mold is closed, molten aluminum is injected from the riser pipe 7 at the center of the bottom of the base plate 1. Under the combined action of gravity and the pressure applied by the die casting machine, the molten aluminum flows smoothly into the mold cavity 8. After the molten aluminum fills the mold cavity 8, it begins to cool and solidify. The five side molds 5 of the five-spoke wheel hub structure mold correspond to five windows. This design allows the cooling medium (usually water or air) to cool the five-spoke wheel hub evenly at the same time. This results in a smaller temperature gradient and uniform shrinkage of the wheel hub casting during solidification. During solidification, the molten aluminum gradually changes from liquid to solid, and its internal structure also changes. The uniform cooling method reduces the generation of internal stress, thereby effectively avoiding casting defects such as shrinkage cavities and slag holes, and ensuring the quality of the wheel hub casting.

[0035] After the wheel hub casting has solidified, the mold opening and ejection stage begins. The five side mold cylinders (5) work in reverse, with the pistons inside the cylinders moving outwards under the action of hydraulic oil, opening the sides of the mold. The movement speed and stroke of the side molds (5) are precisely controlled by the hydraulic system, which is also equipped with control components such as synchronization valves or proportional valves. The synchronization valves precisely adjust the flow rate of hydraulic oil into each cylinder, ensuring that the pistons of the five cylinders move at the same speed. The proportional valves, based on signals from the control system, proportionally adjust the pressure and flow rate of each cylinder, further ensuring the synchronicity and stability of the movement of the five side molds (5), thus achieving precise mold closing and opening. After the five sets of side molds (5) are opened, the upper mold plate (3) is transferred on the casting machine. Driven by the moving mechanism, the upper mold 3 and the wheel hub casting product move upward together. When the wheel hub casting is lifted to a certain height, the tray on the casting machine table is driven by the transmission mechanism to move below the wheel hub casting. Then, the external hydraulic cylinder pushes the push rod plate 10 downward. The push rod 11 pushes the wheel hub casting under the action of the push rod plate 10. The wheel hub casting overcomes the adhesion between itself and the mold and is pushed off the mold, falling onto the tray. Finally, the tray is transferred to the next process under the action of the linear motion mechanism. The entire wheel hub casting product casting process is thus completed. The linear motion mechanism usually adopts a cylinder or electric push rod to achieve fast and accurate movement of the tray.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A five-part mold for a wheel hub structure, characterized in that, include: A base plate (1) is provided with a lower mold (2) at the top center of the base plate (1) and an upper mold (3) is provided at the top of the lower mold (2). An upper template (4) is provided at the top of the upper mold (3). Side mold (5), the side mold (5) is provided in several groups, the several groups of side mold (5) are all located between the base plate (1) and the upper template (4), and the lower mold (2) and the upper mold (3) are located between the several groups of side mold (5), and a triangular block (6) is provided between two adjacent groups of side mold (5).

2. The five-part mold for a wheel hub structure according to claim 1, characterized in that: The bottom center of the base plate (1) is provided with a riser pipe (7), and a mold cavity (8) is provided between the lower mold (2) and the upper mold (3), and the mold cavity (8) is connected to the riser pipe (7).

3. The five-part mold for a wheel hub structure according to claim 1, characterized in that: The upper template (4) is provided with a top rod plate (9) at the top and a top rod pressure plate (10) at the top of the top rod plate (9).

4. The five-part mold for a wheel hub structure according to claim 3, characterized in that: The top of the top rod pressure plate (10) is connected to several top rods (11), and the other end of the top rod (11) can be moved through the top rod plate (9) and the upper template (4).

5. The five-part mold for a wheel hub structure according to claim 1, characterized in that: The upper template (4) is connected to several sleeves (12), and a sleeve rod (13) is slidably connected inside the sleeve (12). One end of the sleeve rod (13) is connected to the top rod plate (9).

6. The five-part mold for a wheel hub structure according to claim 5, characterized in that: A spring is connected between the sleeve (12) and the sleeve rod (13).

7. The five-part mold for a wheel hub structure according to claim 1, characterized in that: The triangular block (6) has a hollow groove (14), and the base plate (1) has several slots (15).

8. A five-part mold for a wheel hub structure according to claim 3, characterized in that: The surface of the side mold (5) is provided with a contour groove (16) that matches the outer wall of the lower mold (2) and the upper mold (3), and a connecting block (17) is connected to the top center of the top rod pressure plate (10).

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