Aluminum alloy automobile wheel hub low pressure casting mold

Abstract

The utility model belongs to automobile aluminium alloy wheel hub casting mould equipment technical field, and disclose aluminium alloy automobile wheel hub low pressure casting mould, including work table, the inside of work table is provided with square groove, the inside spiral of square groove is equipped with screw rod, the outside thread of screw rod is equipped with nut, the upper end surface of nut is fixedly equipped with fixed plate no. 2, the inside middle of fixed plate no. 2 is equipped with threaded hole, the inside of fixed plate no. 2 is equipped with clamping groove, the utility model is equipped with buckle and clamping groove respectively on fixed plate no. 1 and fixed plate no. 2, when installing mould, buckle is clamped into clamping groove, makes fixed plate no. 1 and fixed plate no. 2 connect together, and by screwing threaded column into threaded hole, fixed plate no. 1 and fixed plate no. 2 are fixedly connected, and this design makes this device can quickly replace mould, reduces the cost of replacing mould.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive aluminum alloy wheel hub casting mold equipment, specifically a low-pressure casting mold for aluminum alloy automotive wheels. Background Technology

[0002] In the manufacturing of automotive aluminum alloy wheels, the aluminum alloy is generally heated to a liquid state, then poured into a special mold, and allowed to cool gradually before being shaped. This completes the processing of the automotive aluminum alloy wheel. However, since most existing automotive wheel molds do not have internal cooling devices, the solidification and shaping of the liquid aluminum alloy at the mold is relatively slow, which affects the processing effect of the automotive wheel. Therefore, based on the above problems, a low-pressure casting mold for automotive aluminum alloy wheels is proposed.

[0003] Meanwhile, a low-pressure casting mold for automotive aluminum alloy wheel hubs, with announcement number CN215697895U, is disclosed. This relates to the technical field of automotive aluminum alloy wheel hub casting mold equipment. The mold includes a bracket, a left mold, and a right mold. The left and right molds are respectively installed on the top end face of the bracket. The bottom end face and inner side face of the left and right molds are respectively provided with a water inlet cavity and an inner cavity. A water injection pipe is installed from the lower end face of the left and right molds to the inside of the water inlet cavity, while a water extraction pipe is installed from the upper end of the outer side face of the left and right molds to the inside of the inner cavity. Through the arrangement of the water injection pipe, water extraction pipe, water inlet cavity, partition, heat dissipation pipe, and connecting pipe, cooling water can circulate inside the mold, thus improving the cooling and shaping efficiency of the liquid aluminum alloy. Simultaneously, the arrangement of the connecting sleeve, water outlet, movable plate, and baffle can increase the impact force of the cooling water, thus ensuring the heat exchange effect of the cooling water. This mold is mainly used for cooling and shaping casting molds.

[0004] When using the aforementioned low-pressure casting mold for automotive aluminum alloy wheels, if different shapes of wheels need to be produced, the mold cannot be replaced, so it is necessary to purchase new equipment, which increases the production cost of the wheels.

[0005] Therefore, a low-pressure casting mold for aluminum alloy automotive wheel hubs is proposed to address the above-mentioned problems. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a low-pressure casting mold for aluminum alloy automotive wheel hubs, which has the advantages of allowing for mold replacement and reducing costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a low-pressure casting mold for aluminum alloy automobile wheel hubs, including a worktable, a square groove is provided inside the worktable, a lead screw is spirally provided inside the square groove, a nut is threaded on the outer side of the lead screw, a second fixing plate is fixedly provided on the upper end face of the nut, a threaded hole is provided in the middle of the second fixing plate, and a slot is provided inside the second fixing plate.

[0008] Preferably, a mold is fixedly provided on the inner side of the connecting plate, and the mold is fitted to the workbench. A spiral cooling channel is provided inside the mold.

[0009] By adopting the above technical solution, in the low-pressure casting process of aluminum alloy automotive wheels, the molten metal needs to be rapidly cooled and solidified after being injected into the mold. The spiral cooling channel enables the coolant to form a uniform and efficient cooling cycle inside the mold, accelerating the cooling rate of the molten metal and improving production efficiency. Furthermore, uniform cooling reduces stress concentration inside the wheel hub, lowering the probability of defects such as cracks and improving the product yield.

[0010] Preferably, a connecting plate is fixedly provided on the front and rear end faces of the mold, and a water inlet pipe is fixedly provided on the top of the mold.

[0011] By adopting the above technical solution, the water inlet pipe above mold one and the water outlet pipe that runs through the inside of the worktable and is fixedly installed with mold two constitute a complete cooling circulation system. Coolant enters the mold through the water inlet pipe, carries away heat through the spiral cooling channel, and is discharged through the water outlet pipe, ensuring the continuity and stability of the cooling process. This design makes the maintenance and management of the cooling system more convenient; only periodic checks of the connection between the water inlet and outlet pipes and the coolant level are required.

[0012] Preferably, a telescopic rod is fixedly provided on the left end face of the first connecting plate, a second connecting plate is fixedly provided on the left end face of the telescopic rod, and a spring is fixedly provided on the outer side of the telescopic rod.

[0013] By adopting the above technical solution, the combination of the telescopic rod and spring between connecting plate one and connecting plate two provides buffering and elastic support for the opening and closing of the mold. During mold closing, the telescopic rod can extend and retract according to the relative position of mold one and mold two, while the spring can absorb the impact force generated during mold closing, reducing collisions and wear between molds and extending the service life of the mold. During mold opening, the elasticity of the spring can assist mold two in smoothly separating from mold one, improving the efficiency of mold opening.

[0014] Preferably, a support column is fixedly provided on the lower end face of the workbench, and a water outlet pipe is provided through the interior of the workbench, and the water outlet pipe is fixedly set with the mold.

[0015] By adopting the above technical solution, the support columns fixedly installed on the lower end face of the worktable provide stable support for the entire mold system. During the low-pressure casting process, the mold will be subjected to significant pressure and impact forces. The support columns can evenly distribute these forces to the ground, ensuring the stability of the worktable, thereby ensuring the stability of the mold during the casting process and further improving the quality of the cast products.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model has buckles and slots respectively provided on the first and second fixing plates. When installing the mold, the buckles are inserted into the slots to connect the first and second fixing plates together. The threaded column is then turned into the threaded hole to fix the first and second fixing plates together. This design allows the device to quickly change the mold and reduce the cost of changing the mold.

[0017] 2. This invention addresses the issue that during the low-pressure casting process of aluminum alloy automotive wheel hubs, the molten metal needs rapid cooling and solidification after being injected into the mold. The spiral cooling channel enables the coolant to form a uniform and efficient cooling cycle within the mold, accelerating the cooling speed of the molten metal and improving production efficiency. Furthermore, uniform cooling reduces stress concentration inside the wheel hub, lowering the probability of defects such as cracks and increasing the product's pass rate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the water outlet pipe of this utility model; Figure 3 This is a schematic diagram of the installation structure of the telescopic rod of this utility model; Figure 4 This is a schematic diagram of the installation structure of the motor of this utility model; Figure 5 This is a schematic diagram of the installation structure of the square groove of this utility model.

[0019] In the diagram: 1. Workbench; 2. Support column; 3. Square channel; 4. Mold 1; 5. Mold 2; 6. Spiral cooling channel; 7. Water inlet pipe; 8. Connecting plate 1; 9. Telescopic rod; 10. Spring; 11. Fixing plate 1; 12. Threaded column; 13. Buckle; 14. Shaft; 15. Lead screw; 16. Nut; 17. Fixing plate 2; 18. Threaded hole; 19. Slot; 20. Motor; 21. Water outlet pipe; 22. Connecting plate 2. Detailed Implementation

[0020] 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.

[0021] The following describes an embodiment of this utility model based on its overall structure.

[0022] like Figures 1 to 5 As shown, this utility model provides a low-pressure casting mold for aluminum alloy automobile wheel hubs, including a worktable 1. A square groove 3 is formed inside the worktable 1. A lead screw 15 is spirally arranged inside the square groove 3. A nut 16 is threaded on the outer side of the lead screw 15. A fixing plate 17 is fixedly mounted on the upper end face of the nut 16. A threaded hole 18 is formed in the middle of the fixing plate 17. A slot 19 is formed inside the fixing plate 17. A mold 4 is attached to the right end of the upper end face of the worktable 1. A fixing plate 11 is fixedly mounted on the right end face of the mold 4. The fixed plate 11 has a threaded post 12 running through its interior. The lower end face of the fixed plate 11 is fixed with a buckle 13. The fixed plate 11 and the fixed plate 2 17 are respectively provided with buckles 13 and slots 19. When installing the mold, the buckles 13 are inserted into the slots 19 to connect the fixed plate 11 and the fixed plate 2 17 together. The fixed plate 11 and the fixed plate 2 17 are fixedly connected by rotating the threaded post 12 into the threaded hole 18. This design allows the device to quickly change the mold and reduce the cost of changing the mold.

[0023] In this embodiment, a rotating shaft 14 is fixedly mounted on the left end face of the lead screw 15, and a motor 20 is fixedly mounted on the right end face of the lead screw 15. The motor 20 is fixedly mounted to the worktable 1. A connecting plate 8 is fixedly mounted on the front and rear end faces of the mold 1 4. A telescopic rod 9 is fixedly mounted on the left end face of the connecting plate 1 8, and a connecting plate 22 is fixedly mounted on the left end face of the telescopic rod 9. A spring 10 is fixedly mounted on the outer side of the telescopic rod 9. The combination of the telescopic rod 9 and the spring 10 between the connecting plate 1 8 and the connecting plate 22 provides buffering and elastic support for the opening and closing of the mold. During the mold closing process, the telescopic rod 9 can be extended and retracted according to the relative position of the mold 1 4 and the mold 2 5, while the spring 10 can absorb the impact force generated during mold closing, reduce collisions and wear between molds, and extend the service life of the mold. During mold opening, the elasticity of the spring 10 can assist the mold 2 5 in smoothly separating from the mold 1 4, improving the efficiency of mold opening.

[0024] In this embodiment, a second mold 5 is fixedly mounted on the inner side of the second connecting plate 22, and the second mold 5 is fitted against the worktable 1. Both the first mold 4 and the second mold 5 have spiral cooling channels 6 inside. During the low-pressure casting process of aluminum alloy automotive wheel hubs, the molten metal needs to be rapidly cooled and solidified after being injected into the mold. The spiral cooling channels 6 enable the coolant to form a uniform and efficient cooling cycle inside the mold, accelerating the cooling speed of the molten metal and improving production efficiency. Moreover, uniform cooling can reduce stress concentration inside the wheel hub, lowering the probability of defects such as cracks in the product and improving the product qualification rate.

[0025] In this embodiment, a water inlet pipe 7 is fixedly installed above mold 4. The water inlet pipe 7 above mold 4 and the water outlet pipe 21, which runs through the inside of the workbench 1 and is fixedly installed with mold 2, constitute a complete cooling circulation system. Coolant enters the mold through the water inlet pipe 7, carries away heat through the spiral cooling channels 6 inside mold 4 and mold 2, and is then discharged through the water outlet pipe 21, ensuring the continuity and stability of the cooling process. This design makes the maintenance and management of the cooling system more convenient; only periodic checks of the connection between the water inlet pipe 7 and the water outlet pipe 21 and the coolant level are required.

[0026] In this embodiment, a support column 2 is fixedly installed on the lower end face of the workbench 1, and a water outlet pipe 21 is installed through the interior of the workbench 1. The water outlet pipe 21 is fixedly installed to the mold 5. The support column 2 fixedly installed on the lower end face of the workbench 1 provides stable support for the entire mold system. During the low-pressure casting process, the mold will be subjected to large pressure and impact forces. The support column 2 can evenly distribute these forces to the ground, ensuring the stability of the workbench 1, thereby ensuring the stability of the mold during the casting process and further improving the quality of the cast products.

[0027] Working principle and process of low-pressure casting mold for aluminum alloy automobile wheels: When using the low-pressure casting mold for aluminum alloy automotive wheel hubs, during mold installation, the first fixing plate 11 and the second fixing plate 17 are connected by snapping the buckle 13 into the slot 19. Then, the first fixing plate 11 and the second fixing plate 17 are fixedly connected by turning the threaded post 12 into the threaded hole 18. This design allows for quick mold replacement, reducing the cost of mold replacement. After the mold is fixed, the two motors 20 are started simultaneously, and the motors 20 drive the lead screw 15 to rotate. Because the lead screw 15 and the nut 16 are threaded together, the nut 16 will move linearly along the lead screw 15, thereby driving the fixed plate 17 to move, which in turn causes the mold connected to the fixed plate 11 to move. As the mold 1 4 and the mold 2 5 approach each other, the telescopic rod 9 will extend and retract according to the actual situation. The spring 10 plays a role in buffering and elastic support, reducing the impact force when the mold is closed, until the mold 1 4 and the mold 2 5 are completely closed, forming a complete casting cavity. Through a suitable low-pressure casting equipment, the molten aluminum alloy is injected into the casting cavity formed by the mold 1 4 and the mold 2 5 at a certain pressure and speed.

[0028] During the injection process, the temperature, pressure, and flow rate of the molten metal must be strictly controlled to ensure casting quality. After the molten metal is injected into the mold cavity, coolant continuously enters mold 4 through the inlet pipe 7 and then flows into the spiral cooling channel 6 inside mold 5. The design of the spiral cooling channel 6 allows the coolant to form a uniform and efficient cooling cycle inside mold 5, accelerating the cooling speed of the molten metal. During the cooling process, the molten metal gradually solidifies into the shape of an aluminum alloy car wheel hub. The cooling time is reasonably adjusted according to factors such as the material of the aluminum alloy, the size and thickness of the wheel hub, to ensure that the wheel hub is completely solidified and has a uniform internal structure. When the wheel hub is completely solidified, the control motor 20 reverses, and the lead screw 15 rotates in the opposite direction, driving the fixing plate 17 and mold 4 to move to the right. At this time, the elasticity of the spring 10 assists in the smooth separation of mold 5 and mold 4. The telescopic rod 9 extends as the molds separate. After mold 4 and mold 5 are completely separated, the cast aluminum alloy car wheel hub is removed from the mold using appropriate tools.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-pressure casting mold for aluminum alloy automobile wheel hubs, comprising a worktable (1), characterized in that; The workbench (1) has a square groove (3) inside, and a lead screw (15) is spirally provided inside the square groove (3). A nut (16) is threaded on the outer side of the lead screw (15). A fixing plate (17) is fixed on the upper end face of the nut (16). A threaded hole (18) is provided in the middle of the interior of the fixing plate (17). A slot (19) is provided inside the fixing plate (17).

2. The low-pressure casting mold for aluminum alloy automotive wheel hubs according to claim 1, characterized in that: The upper right side of the workbench (1) is fitted with a mold (4), the mold (4) has a spiral cooling channel (6) inside, the right side of the mold (4) is fixed with a fixing plate (11), the inside of the fixing plate (11) is provided with a threaded column (12), and the lower side of the fixing plate (11) is fixed with a buckle (13).

3. The low-pressure casting mold for aluminum alloy automobile wheel hubs according to claim 2, characterized in that: The front and rear ends of the mold (4) are fixedly provided with connecting plates (8), and the top of the mold (4) is fixedly provided with water inlet pipe (7).

4. The low-pressure casting mold for aluminum alloy automobile wheel hubs according to claim 1, characterized in that: The left end face of the lead screw (15) is fixedly provided with a rotating shaft (14), and the right end face of the lead screw (15) is fixedly provided with a motor (20), and the motor (20) is fixedly set with the worktable (1).

5. The low-pressure casting mold for aluminum alloy automotive wheel hubs according to claim 3, characterized in that: A telescopic rod (9) is fixedly provided on the left end face of the first connecting plate (8), a second connecting plate (22) is fixedly provided on the left end face of the telescopic rod (9), and a spring (10) is fixedly provided on the outside of the telescopic rod (9).

6. The low-pressure casting mold for aluminum alloy automobile wheel hubs according to claim 5, characterized in that: The inner side of the connecting plate 2 (22) is fixedly provided with mold 2 (5), and mold 2 (5) is fitted to the workbench (1). The interior of mold 2 (5) is provided with spiral cooling channel (6).

7. The low-pressure casting mold for aluminum alloy automobile wheel hubs according to claim 1, characterized in that: The lower end face of the workbench (1) is fixedly provided with a support column (2), and the interior of the workbench (1) is provided with a water outlet pipe (21), and the water outlet pipe (21) is fixedly set with the mold (5).

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