Alloy forming die and vehicle

By designing alloy forming molds, a stable bond between the magnesium alloy shell and the aluminum alloy inserts was achieved, solving the problem of electro-corrosion of the magnesium alloy shell and reducing cost and weight.

CN223557224UActive Publication Date: 2025-11-18CHONGQING JINKANG POWER NEW ENERGY CO LTD
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Patent Information

Application Number
CN202423167571.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-18
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

When magnesium alloy housings are connected to steel bolts, there is an issue of electro-corrosion, which leads to a decrease in durability. At the same time, using aluminum bolts or aluminum washers increases costs and weight.

Method used

An alloy forming mold is provided, including a fixed mold and a moving mold, with a switchable core-pulling assembly, which enables the integral forming of a magnesium alloy shell and an aluminum alloy insert through two working states, thereby reducing process costs and avoiding weight increase.

Benefits of technology

A stable bond between the magnesium alloy shell and the aluminum alloy insert was achieved, reducing process costs and avoiding weight increase, while also solving the problem of electro-corrosion.

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Abstract

The utility model provides an alloy forming mold and a vehicle, the alloy forming mold comprises a fixed mold and a movable mold, the fixed mold is provided with a concave cavity, the movable mold is provided with a convex mold core and a core-pulling through hole, the fixed mold is connected with the movable mold, the mold core is embedded in the cavity and forms a mold cavity, the alloy forming mold further comprises a core-pulling assembly stretching into the mold cavity from the core-pulling through hole, and the core-pulling assembly is connected with the movable mold. The core pulling assembly comprises an outer shell and an inner core which are movably connected and has a first working state and a second working state which can be switched, in the first working state, the mold cavity is used for forming the shell, the shell is made of first alloy, in the second working state, the outer shell is separated from the inner core, and an insert space is formed between the inner core and the shell; the mold cavity is used for forming an insert, the insert is made of second alloy, and the insert and the shell are integrally formed. The problem that the process cost and the weight are increased when the first alloy shell and the second alloy insert are combined is solved.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of manufacturing of hybrid vehicle gearbox housings, in particular to an alloy forming die and a vehicle. BACKGROUND

[0002] With the rapid development of the domestic new energy vehicle market, the housing as one of the core components of the new energy electric drive assembly becomes more important in terms of technology update and cost control. Since the magnesium alloy has the characteristics of high strength and light weight, the magnesium alloy is applied more and more in the new energy vehicle market, and the application of the magnesium alloy electric drive housing will become a development trend. However, the magnesium alloy housing is connected by steel bolts, and the electric corrosion is formed between the magnesium alloy housing and the steel bolt due to the potential difference, which has a great influence on the durability of the magnesium alloy housing. Usually, the aluminum bolt or aluminum gasket method is used to reduce the problem of electric corrosion of the magnesium alloy housing. However, in order to improve the strength of the aluminum bolt, the diameter of the bolt needs to be increased to meet the use requirements, and the increase of the diameter of the aluminum bolt or the increase of the aluminum gasket will cause the problems of cost and weight increase. CONTENT OF THE UTILITY MODEL

[0003] The application provides an alloy forming die and a vehicle, the alloy forming die comprises a fixed die and a movable die; the fixed die is provided with a recessed cavity; the movable die is provided with a protruding core and a core pulling hole; the fixed die and the movable die are connected, the core is embedded in the cavity and forms a mold cavity;

[0004] The alloy forming die further comprises a core pulling assembly extending into the mold cavity from the core pulling hole, the core pulling assembly comprises an outer shell and an inner core connected movably, and the core pulling assembly has switchable first and second working states;

[0005] In the first working state, the mold cavity is used for forming a housing, and the material of the housing is a first alloy; in the second working state, the outer shell is separated from the inner core, so that a insert space is formed between the inner core and the housing, the mold cavity is used for forming an insert, the material of the insert is a second alloy, and the insert is integrally formed with the housing.

[0006] In some embodiments, the outer shell is provided with an anti-falling boss, and the anti-falling boss has a rectangular structure.

[0007] In some embodiments, the outer shell has a cylindrical structure, the anti-falling boss is formed by protruding outward along the outer wall of the outer shell, and the outer shell and the anti-falling boss are movably connected with the mold plate of the movable die.

[0008] In some embodiments, the outer shell is provided with an inner hole, the inner hole has a through hole structure, and the inner hole is movably connected with the inner core.

[0009] In some embodiments, the inner core comprises a front section and a rear section of an integral structure, the front section is a conical structure for forming the inner hole of the insert.

[0010] In some embodiments, the rear section is a straight cylindrical structure, and the rear section is movably connected with the outer shell.

[0011] In some embodiments, the fixed mold is further provided with a main runner and a sub-runner, the main runner injects a first alloy fluid to form the shell body, and the sub-runner injects a second alloy fluid to form the insert.

[0012] In some embodiments, the fixed mold is internally provided with a cooling water channel comprising a water inlet and a water outlet; and the movable mold is internally provided with a cooling water channel comprising a water inlet and a water outlet.

[0013] In some embodiments, the first alloy is a magnesium alloy, and the second alloy is an aluminum alloy.

[0014] After the above technical solution is adopted, the beneficial effects are:

[0015] The application provides an alloy forming mold and a vehicle. The alloy forming mold comprises a fixed mold and a movable mold. The fixed mold is provided with a recessed cavity. The movable mold is provided with a protruding core and a core-pulling perforation. The fixed mold and the movable mold are connected. The core is embedded in the cavity and forms a mold cavity. The alloy forming mold further comprises a core-pulling assembly that extends into the mold cavity from the core-pulling perforation. The core-pulling assembly comprises an outer shell and an inner core that are movably connected. The core-pulling assembly has switchable first and second working states. Through the two switchable working states, the first alloy shell and the second alloy insert can be formed, thereby reducing the process cost of combining the first alloy shell and the second alloy insert and avoiding the increase in the weight of the alloy shell. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 It is a structural exploded view of an alloy forming mold.

[0018] Figure 2 It is a structural view of a movable mold of an alloy forming mold.

[0019] Figure 3 It is a structural view of a core-pulling assembly of an alloy forming mold.

[0020] Figure 4A sectional view of an alloy insert of an alloy forming die.

[0021] Figure 5 A sectional view of a fixed die of an alloy forming die.

[0022] Figure 6 A sectional view of an alloy housing of an alloy forming die.

[0023] 100 - alloy forming die;

[0024] 10 - fixed die; 11 - cavity; 12 - main gate; 121 - main sub-gate; 13 - sub-gate; 131 - sub-sub-gate; 15 - fixed die plate;

[0025] 20 - movable die; 21 - core; 22 - core-pulling hole; 23 - movable die plate;

[0026] 30 - cavity;

[0027] 50 - core-pulling assembly; 51 - outer shell; 511 - anti-ejection boss; 52 - inner core; 521 - front section; 522 - rear section;

[0028] 60 - alloy housing; 61 - first alloy housing; 62 - second alloy insert; 63 - mounting hole. DETAILED DESCRIPTION

[0029] For better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0030] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0032] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0033] In order to reduce the process cost of magnesium alloy shell combined with aluminum alloy and solve the problem of weight increase of alloy shell, the application provides an alloy forming die 100, Figure 1 It is an exploded view of the structure of the alloy forming die, Figure 2 It is a structural view of the moving die of the alloy forming die, as shown in Figure 1 And Figure 2 The alloy forming die 100 includes a fixed die 10 and a moving die 20; the fixed die 10 is provided with a recessed cavity 11; the moving die 20 is provided with a protruding core 21 and a core pulling hole 22; the fixed die 10 and the moving die 20 are connected, and the core 21 is embedded in the cavity 11 and forms a mold cavity 30;

[0034] The alloy forming die 100 further includes a core pulling assembly 50 extending into the mold cavity 30 from the core pulling hole 22, the core pulling assembly 50 includes a movable outer shell 51 and an inner core 52, and the core pulling assembly 50 has a switchable first working state and a second working state;

[0035] In the first working state, the mold cavity 30 is used for forming a shell, and the material of the shell is a first alloy; in the second working state, the outer shell 51 is separated from the inner core 52, so that a insert space is formed between the inner core 52 and the shell, and the mold cavity 30 is used for forming an insert, the material of the insert is a second alloy, and the insert is integrally formed with the shell.

[0036] From the above, the problem solving path of the technical scheme of the application is to provide a mold with two working states, so that the shell of the first alloy material and the insert of the second alloy material can be formed at one time, thereby facilitating to improve the combination stability of the first alloy and the second alloy after pouring forming.

[0037] In order to make the technical scheme, object and advantage of the application more clear and explicit, the technical scheme of the application will be further described in detail below in combination with the drawings and examples. At the same time, in order to facilitate understanding, the alloy forming die 100 is placed horizontally, that is, the closing direction of the fixed die 10 and the moving die 20 is consistent with the horizontal direction.

[0038] The alloy forming die 100 is usually applied in casting or pressure casting forming process, the alloy forming die 100 is installed on a machine table, alloy fluid is poured or injected into the flow channel of the mold through special equipment, the alloy fluid is cooled and formed in the mold cavity 30, and after the mold is separated, the alloy workpiece is taken out, so it can be seen that the alloy forming die 100 is the matrix of the alloy workpiece forming and has the function of producing a shell.

[0039] The alloy forming die 100 comprises a fixed die 10 and a movable die 20; the fixed die 10 is provided with a concave cavity 11; the movable die 20 is provided with a convex core 21 and a core-pulling through hole 22; the fixed die 10 and the movable die 20 are connected, and the core 21 is embedded in the cavity 11 and forms a die cavity 30.

[0040] In some embodiments, the fixed die 10 is a square structure, the movable die 20 is also a square structure, and the fixed die 10 and the movable die 20 can be connected by snap-fitting to form the alloy shell 60.

[0041] Specifically, please continue to refer to Figure 1 , the fixed die 10 is a square structure and is provided with an inwardly recessed cavity, which is a square box type for forming the outer surface of the required alloy shell 60, and the junction of the cavity bottom wall and the cavity peripheral wall of the box type structure is a circular arc corner, and the junction angle of the cavity bottom wall and the cavity peripheral wall is greater than 90 degrees.

[0042] The movable die 20 is also a square structure and is provided with a convex core 21, which is a square protrusion for forming the inner surface of the required alloy shell 60, and the junction of the top surface of the core 21 and the peripheral surface of the core 21 is a circular arc corner, and the junction angle of the top surface of the core 21 and the peripheral surface of the core 21 is greater than 90 degrees.

[0043] After the fixed die 10 and the movable die 20 are connected by snap-fitting, the die cavity 30 is formed between the cavity 11 and the core 21, and after the alloy fluid is injected, the alloy shell 60 is formed.

[0044] In the above scheme, the cavity 11 of the fixed die 10 and the core 21 of the movable die 20 have a certain slope, which is beneficial to the subsequent alloy shell 60 after forming and separating from the die.

[0045] In some embodiments, the movable die 20 is internally provided with a cooling water channel (not shown) including a water inlet (not shown) and a water outlet (not shown).

[0046] Specifically, the movable die template 23 is internally provided with a U-shaped cooling water channel (not shown), the cooling water channel (not shown) is a hole structure and internally circulates cooling water to adjust the temperature of the movable die 20, the cooling water channel (not shown) includes a water inlet (not shown) and a water outlet (not shown), and the water inlet (not shown) and the water outlet (not shown) of the cooling water channel (not shown) are connected to related cooling circulating machine equipment.

[0047] In the above scheme, the movable die 20 is internally provided with a U-shaped cooling water channel (not shown), which is a mature process structure in the field of forming die technology, and the cooling water running through the cooling water channel (not shown) is used to quickly adjust the temperature of the die and the alloy shell 60 in the die cavity 30, which is beneficial to the forming of the alloy shell 60 and the subsequent separation from the die.

[0048] The fixed mold 10 and the movable mold 20 are also provided with guide sleeves, mold electric heaters, mold installation positions and other structures. The movable mold 20 is also provided with ejection structures, guide columns, mold installation positions and core-pulling push-pull structures.

[0049] Figure 3 It is a structure diagram of core-pulling of an alloy forming mold, Figure 4 It is a structure diagram of a cross section of an alloy insert of an alloy forming mold, as shown in Figure 3 and Figure 4 In order to improve the bonding strength of the first alloy shell 61 and the second alloy insert 62 and avoid the problem of weight increase, the alloy forming mold 100 also includes a core-pulling assembly 50 extending into the mold cavity 30 from the core-pulling hole 22. The core-pulling assembly 50 includes an outer shell 51 and an inner core 52 which are movably connected. The core-pulling assembly 50 and the core-pulling hole 22 are arranged in the movable mold 20.

[0050] As shown in Figure 3 , the core-pulling assembly 50 includes the outer shell 51 and the inner core 52, and the core-pulling assembly 50 can form the mounting hole 63 of the alloy shell 60 in the mold cavity 30. The outer shell 51 is provided with an anti-extrusion boss 511 which is a rectangular structure.

[0051] The outer shell 51 is a cylindrical structure, and the anti-extrusion boss 511 is formed outwardly along the outer wall of the outer shell 51. The outer shell 51 and the anti-extrusion boss 511 are movably connected with the movable mold plate 23.

[0052] Specifically, please continue to refer to Figure 1 , the core 21 of the movable mold 20 is provided with four core-pulling holes penetrating the movable mold plate 23. At least four core-pulling assemblies 50 are arranged in the core-pulling holes 22 in the horizontal direction, and the four core-pulling assemblies 50 are used to form the second metal insert of the alloy shell 60. The outer shell 51 of the core-pulling assembly 50 is a cylindrical structure, and the surface of the cylinder is provided with an anti-extrusion boss 511 which is parallel to the axis of the cylinder. The anti-extrusion boss 511 is a rectangular structure and protrudes in the radial direction. The length of the anti-extrusion boss 511 is slightly shorter than the length of the outer shell 51. The outer shell 51 and the anti-extrusion boss 511 form an integral structure and can be slidably connected with the movable mold plate 23 and reciprocally moved. The structure of the outer shell 51 is to form a groove in the mounting hole 63 of the first alloy shell 61. The design of the groove structure is to pour the molten second alloy between the inner core 52 and the mounting hole 63 of the first alloy shell 61 which is cooled and formed, thereby forming the insert 62.

[0053] Please refer to Figure 3 and Figure 4The outer shell 51 is internally provided with a through hole structure, the through hole is movably connected with the inner core 52, the inner core 52 comprises a front section 521 and a rear section 522 which are in an integral structure, the front section 521 is a conical structure for forming an inner hole of the insert, and the rear section 522 is a straight cylindrical structure, and the rear section 522 is movably connected with the outer shell 51.

[0054] Specifically, the inner hole of the outer shell 51 is a circular through hole structure, the inner hole of the outer shell 51 is provided with the inner core 52 which is slidably fitted, the length of the front section 521 of the inner core 52 is equal to the depth of the mounting hole 63 of the first alloy shell 61, the front section 521 of the inner core 52 is conical, and the taper is 1-3 degrees, so that the inner core 52 can be separated from the mounting hole 63 after the mounting hole 63 of the first alloy shell 61 is formed. The rear section 522 of the inner core 52 is a straight cylindrical section. The inner core 52 can be slidably fitted with the inner hole of the outer shell 51, and the length of the inner core 52 is greater than the length of the outer shell 51.

[0055] In the above scheme, the outer shell 51 and the inner core 52 of the core pulling assembly make the second alloy insert 62 be formed. Because the outer shell 51 has the anti-extrusion boss 511, the mounting hole 63 of the first alloy shell 61 has a groove, and the groove is a non-through groove structure with a blocking step at the top end, so that the second alloy has a protruding structure which is combined with the groove of the first alloy and the connection is more firm. In addition, because the front section 521 of the inner core 52 is conical, the taper is beneficial to the retraction and separation of the inner core 52.

[0056] The main purpose of the technical scheme of the present application is to reduce the process cost and weight of the combination of the first alloy shell 61 and the second alloy insert 62, and the two working states of the core pulling assembly 50 can achieve this technical target.

[0057] In some embodiments, referring to Figure 1 and Figure 3 , the core pulling assembly 50 has switchable first and second working states.

[0058] In the first working state, the mold cavity 30 is used for forming a shell, and the material of the shell is the first alloy; in the second working state, the outer shell 51 and the inner core 52 are separated, so that the inner core 52 and the shell form an insert space, the mold cavity 30 is used for forming an insert, the material of the insert is the second alloy, and the insert and the shell are integrally formed.

[0059] Specifically, in the first working state, the fixed mold 10 and the movable mold 20 are tightly connected, the outer shell 51 and the inner core 52 in the core pulling assembly 50 are moved forward into the mold cavity 30, and the top of the outer shell 51 and the inner core 52 is flush, the first alloy fluid is injected into the mold cavity 30 to form the first alloy shell 61.

[0060] In the second working state, the fixed mold 10 and the moving mold 20 remain engaged and tightly connected, while the inner core 52 in the core-pulling assembly 50 remains stationary and is pulled out of the outer shell 51 and retracted to the rear section 522 of the inner core 52. That is, the outer shell 51 and the inner core 52 are in a stepped state, with only the front section 521 of the inner core 52 exposed on the top of the outer shell 51. In this state, the first alloy shell 61 has been formed. After the outer shell 51 in the core-pulling assembly 50 retracts a certain distance, a groove is formed at the corresponding position of the first alloy shell 61 due to the anti-detachment boss 511 structure. This forms a small mold cavity at the front end of the outer shell 51 and the exposed inner core 52. Then, the second alloy fluid is injected. After the second alloy fluid flows into the small mold cavity and cools, it forms the second alloy insert 62. After the alloy shell 60 and the alloy insert are cooled, the inner core 52 is removed, thus forming the inner hole of the second alloy insert 62. The second alloy insert 62 is like a kit fitted inside the first alloy shell. Due to the anti-detachment boss 511 of the outer shell 51 of the core-pulling assembly 50, the first alloy shell 61 forms a groove. This groove makes the second alloy insert 62 and the first alloy shell 61 firmly connected and prevent them from detaching.

[0061] In the above scheme, the core-pulling assembly 50 has a switchable first working state and a second working state. The two states have a clear division of labor. Its first working state can form the first alloy shell 61, while its second working state has the function of pulling out the outer shell 51 and the inner core 52 twice. Therefore, it can form the second alloy insert 62 and form the inner hole of the insert, without the need to add subsequent processes. It has the advantages of process integration and cost reduction.

[0062] In some implementations... Figure 5 This is a schematic diagram of the structure of the fixed mold of an alloy forming die, as shown below. Figure 5 As shown, the fixed mold 10 is also provided with a main runner 12 and a secondary runner 13. The main runner 12 injects a first alloy fluid to fill the mold cavity 30 and cools to form the shell body. The secondary runner 13 injects a second alloy fluid to fill the mold cavity 30 and cools to form an insert.

[0063] Specifically, the main runner 12 is a cylindrical structure located in and through the fixed mold plate 15. The main runner 12 branches out from the surface of the fixed mold plate 15 and into three main sub-runners 121 extending to the cavity 11. The main sub-runners 121 are shallow groove structures connected to the main runner 12. Both the main runner 12 and the main sub-runners 121 are used to form the first alloy shell 61. During the forming process, the first alloy fluid first enters the main runner 12. After the main runner 12 is filled, the first alloy fluid overflows through the three main sub-runners into the mold cavity 30 and fills the mold cavity 30 to form the first alloy shell 61.

[0064] The sub-runner 13 is in a cylindrical structure, a part of the sub-runner 13 is arranged in the fixed mold plate 15 and penetrates the fixed mold plate 15, and another part of the sub-runner 13 is arranged on the surface of the movable mold plate 23.

[0065] The sub-runner 13 is divided into four sub-runners 131 extending to the core 21, the sub-runners 131 are in a shallow groove structure and are in communication with the sub-runner 13, and the sub-runner 13 and the sub-runners 131 are both used for forming the second alloy insert 62. In the forming process, the second alloy fluid first enters the sub-runner 13, and after the sub-runner 13 is filled, the second alloy fluid overflows through the four sub-runners 131 into the mold cavity 30, that is, the position of the core pulling, and is filled to form the second alloy insert 62.

[0066] In the above scheme, the main runner 12 is used for forming the first alloy shell 61, and the sub-runner 13 is used for forming the second alloy insert 62. This double-runner structure is the basis for realizing the double-alloy integration. In addition, the first and second alloy runners are both process structure accessories and have no actual use function. This shallow groove structure of the runner is easy to separate from the shell.

[0067] In some embodiments, the fixed mold 10 is internally provided with a cooling water channel (not shown) including a water inlet (not shown) and a water outlet (not shown);

[0068] Specifically, the fixed mold 10 is internally provided with a U-shaped cooling water channel (not shown), the cooling water channel (not shown) is in a hole structure and internally flows cooling water to adjust the temperature of the movable mold 20, the cooling water channel (not shown) includes a water inlet (not shown) and a water outlet (not shown), and the water inlet (not shown) and the water outlet (not shown) of the cooling water channel (not shown) are connected to related cooling circulating machine equipment.

[0069] In the above scheme, the fixed mold 10 is internally provided with a U-shaped cooling water channel (not shown), and this structure is a mature process structure in the technical field of forming molds. The cooling water flowing through the cooling water channel (not shown) is used to quickly adjust the temperature of the mold and the alloy shell 60 in the mold cavity 30, which is beneficial to the forming and subsequent separation of the alloy shell 60 from the mold.

[0070] The fixed mold 10 and the movable mold 20 can be processed and manufactured by using mold steel materials. In some processes, non-metallic materials can also be used to manufacture molds. The molds can be manufactured by using mechanical processing methods or other methods, which are not limited.

[0071] In some embodiments, Figure 6 A structure diagram of an alloy shell of an alloy forming mold is shown in FIG. 1. Figure 6As shown, the first alloy is a magnesium alloy used to form the first alloy shell 61, and the second alloy is an aluminum alloy used to form the second alloy insert 62, in the technical solution of the present application, the aluminum alloy insert and the magnesium alloy shell are fused into one body and form a plurality of mounting holes 63 of the magnesium alloy shell, and after the plurality of aluminum alloy mounting holes 63 are provided with steel bolts, the direct contact with the magnesium alloy shell can be effectively isolated, which solves the problem of galvanic corrosion caused by the magnesium alloy shell and the steel bolt, and also solves the problems of process cost and weight increase of the combination of the first alloy shell 61 and the second alloy insert 62.

[0072] In the technical solution of the present application, the alloy forming die 100 includes a fixed die 10 and a movable die 20, the fixed die 10 is provided with a recessed cavity 11, the movable die 20 is provided with a protruding core 21 and a core pulling hole 22, the fixed die 10 and the movable die 20 are connected, the core 21 is embedded in the cavity 11 and forms a mold cavity 30, the alloy forming die 100 further includes a core pulling assembly 50 extending into the mold cavity 30 from the core pulling hole 22, the core pulling assembly 50 includes a movable outer shell 51 and an inner core 52, and the core pulling assembly 50 has a switchable first working state and a second working state. In the first working state, the magnesium alloy shell is formed, in the second working state, the aluminum alloy insert is formed, and then the alloy shell is cooled by the cooling water running through the cooling water channels of the fixed die 10 and the movable die 20, then the fixed die 10 and the movable die 20 are separated, the core is retracted, the alloy shell can be removed from the alloy forming die 100, the magnesium alloy gate and the aluminum alloy gate connected to the alloy shell are cut off by using a cutting device, and the processing process of the alloy shell is completed.

[0073] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An alloy forming die characterized by, The alloy forming die comprises a fixed die and a movable die; the fixed die is provided with a concave cavity; the movable die is provided with a convex core and a core pulling hole; the fixed die and the movable die are connected, and the core is embedded in the cavity and forms a mold cavity; The alloy forming die further comprises a core pulling assembly extending into the mold cavity from the core pulling hole, the core pulling assembly comprising a movably connected outer shell and an inner core, and the core pulling assembly has switchable first and second working states; In the first working state, the mold cavity is used for forming a shell, and the shell is made of a first alloy; in the second working state, the outer shell is separated from the inner core, so that an insert space is formed between the inner core and the shell, and the mold cavity is used for forming an insert, and the insert is made of a second alloy, and the insert is integrally formed with the shell.

2. The alloyed forming die of claim 1, wherein The outer shell is provided with an anti-extraction boss which is a rectangular structure.

3. The alloyed forming die of claim 2, wherein, The outer shell is a cylindrical structure, and the anti-extraction boss is formed by protruding outward along the outer wall of the outer shell, and the outer shell and the anti-extraction boss are movably connected with the mold plate of the movable die.

4. The alloyed forming die of claim 1 wherein, The outer shell is provided with an inner hole which is a through hole structure and is movably connected with the inner core.

5. The alloyed forming die of claim 1 wherein, The inner core comprises a front section and a rear section which are an integral structure, and the front section is a conical structure for forming an inner hole of the insert.

6. The alloyed forming die of claim 5, wherein, The rear section is a straight cylindrical structure, and the rear section is movably connected with the outer shell.

7. The alloyed forming die of claim 1 wherein, The fixed die is further provided with a main runner and a sub-runner, the main runner injects a first alloy fluid to form a main body of the shell, and the sub-runner injects a second alloy fluid to form the insert.

8. The alloyed shaped mold of claim 1 wherein, The fixed die is internally provided with a cooling water channel comprising a water inlet and a water outlet; the movable die is internally provided with a cooling water channel comprising a water inlet and a water outlet.

9. The alloyed shaped mold of claim 1 wherein, The first alloy is a magnesium alloy; and the second alloy is an aluminum alloy.

10. A vehicle characterized by comprising: The vehicle comprises the alloy forming die according to any one of claims 1-9.