Die casting system and control method thereof

Abstract

The invention provides a die-casting system and a control method thereof. The die-casting system comprises a die-casting machine body, a die and a die replacement system. The die comprises a universal part and a difference part, the universal part is fixedly mounted on the die-casting machine main body, and the difference part is detachably connected with the universal part; the mold replacement system comprises a carrying platform, and the carrying platform is used for supporting and carrying the difference part. The die-casting system is high in die replacement efficiency, and meanwhile the safety of the replacement process is high.

Description

Technical Field

[0001] The present disclosure relates to the field of die casting technology, and in particular to a die casting system and a control method thereof. Background Art

[0002] With the continuous development of integrated die-casting technology, more and more types of products are produced using die-casting technology. For example, in traditional vehicles, a larger structure formed by the cooperation of multiple parts can be directly integrated with the die-casting system, effectively reducing the number of parts and improving production efficiency. The mold installed in the die-casting machine in the die-casting system can also be replaced to achieve the production of different products.

[0003] In the related art, when replacing a mold of a die-casting system, the mold needs to be lifted and moved to a target position so as to install the mold to a corresponding part of the die-casting machine.

[0004] However, for some heavy molds (for example, large molds may actually weigh up to 100 tons), there will be greater safety risks during the mold lifting and moving process, and the piping and wiring installation time is long, resulting in low mold replacement efficiency. Summary of the invention

[0005] In view of this, the present disclosure provides a die-casting system and a control method thereof, which can improve the efficiency of mold replacement and at the same time, the replacement process is relatively safe.

[0006] Specifically, the following technical solutions are included:

[0007] In a first aspect, a die casting system is provided, comprising a die casting machine body, a die and a die replacement system;

[0008] The die comprises a common part and a differential part, the common part is fixedly mounted on the die-casting machine body, and the differential part is detachably connected to the common part;

[0009] The mold replacement system includes a transport platform, and the transport platform is used to support and transport the difference part.

[0010] Optionally, the transport platform has a rolling portion, and the rolling portion is used to support and move the difference portion.

[0011] Optionally, the rolling portion includes a plurality of rollable rollers, and the plurality of rollable rollers are arranged side by side.

[0012] Optionally, the die-casting machine body includes a first body and a second body relative to each other, the mold includes a first sub-mold and a second sub-mold, the common part of the first sub-mold is fixedly installed on the first body, and the common part of the second sub-mold is fixedly installed on the second body.

[0013] Optionally, the mold replacement system further includes a driving structure, and the driving structure is used to drive the transport platform to enter between the first body and the second body or to exit between the first body and the second body.

[0014] Optionally, the transport platform includes a first transport position and a second transport position;

[0015] The first transporting position is used to support and transport the difference portion of the first sub-mold;

[0016] The second transporting position is used to support and transport the difference portion of the second sub-mold.

[0017] Optionally, the first transporting position includes a first sub-rolling portion and a first sub-limiting portion, the first sub-rolling portion is used to support the difference portion of the first sub-mold, and the first sub-limiting portion is used to limit the movement of the first sub-mold in a direction away from the first body;

[0018] The second transporting position includes a second sub-rolling portion and a second sub-limiting portion, wherein the second sub-rolling portion is used to support the difference portion of the second sub-mold, and the second sub-limiting portion is used to limit the movement of the second sub-mold in a direction away from the second body.

[0019] Optionally, the common portion includes a retractable hook structure, and the different portion includes a groove structure, and the hook structure and the groove structure can be switched between a connected state and a separated state.

[0020] Optionally, the hook structure comprises a rod portion and a connecting end portion, and the connecting end portion has a size larger than that of the rod portion;

[0021] The groove structure includes an entry section and a accommodating section, which are arranged along the depth direction of the groove. The entry section includes a large-size portion and a small-size portion, the size of the large-size portion is larger than the size of the connecting end, and the size of the small-size portion is smaller than the size of the connecting end and larger than the size of the rod portion.

[0022] Optionally, the large-size portion and the small-size portion of the entry section extend gradually.

[0023] In a second aspect, a control method for a die-casting system is provided. The die-casting system is as described above, and the method comprises:

[0024] Controlling the movement of a transport platform of the mold transport system to transport the difference portion of the mold to a target position, wherein the difference portion is opposite to the common portion of the mold when located at the target position;

[0025] The common part of the mold is controlled to be connected with the difference part of the mold.

[0026] Optionally, the common part includes a retractable hook structure, and the difference part includes a groove structure, and the hook structure and the groove structure can be switched between a connected state and a separated state; the hook structure has a rod part and a connecting end part, and the size of the connecting end part is larger than the size of the rod part; the groove structure includes an entry section and a receiving section, and the entry section and the receiving section are arranged along the depth direction of the groove, and the entry section includes a large-size part and a small-size part, and the size of the large-size part is larger than the size of the connecting end part, and the size of the small-size part is smaller than the size of the connecting end part and larger than the size of the rod part;

[0027] The controlling the connection between the common part of the mold and the difference part of the mold comprises:

[0028] Controlling the hook structure to extend so that the connecting end of the hook structure enters the receiving section of the groove structure through the large-size portion of the entry section of the groove structure;

[0029] Controlling the movement of the transport platform so that the orthographic projection of the connecting end of the hook structure at the bottom of the groove structure at least partially overlaps with the orthographic projection of the small-size portion at the bottom of the groove structure;

[0030] Controlling the transport platform to move toward the universal portion, and controlling the hook structure to retreat until the difference portion contacts the universal portion;

[0031] The common portion and the different portion are fixedly connected.

[0032] The disclosed embodiment provides a die-casting system and a control method thereof, wherein the die of the die-casting system is divided into a common part and a difference part, and when the die is replaced, only the difference part actually needs to be replaced, which is conducive to improving the replacement efficiency of the die and reducing the cost of developing and manufacturing the die. The die-casting system also includes a die replacement system, and the transport platform of the die replacement system can support and transport the difference part, and during the installation of the difference part, the difference part can be stably placed on the transport platform without being in a suspended state, which is safer and more stable during the installation process, which is conducive to further improving the replacement efficiency of the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1A schematic structural diagram of a die-casting system provided in an embodiment of the present disclosure;

[0035] Figure 2 A partial structural schematic diagram of a die-casting system provided by an embodiment of the present disclosure when a mold is being replaced;

[0036] Figure 3 A partial structural schematic diagram of a die-casting system provided by an embodiment of the present disclosure when a mold is being replaced;

[0037] Figure 4 A top view of a transport platform provided in an embodiment of the present disclosure;

[0038] Figure 5 A top view of a mold in a die-casting system provided by an embodiment of the present disclosure;

[0039] Figure 6 A front view of a difference portion of a mold in a die-casting system provided by an embodiment of the present disclosure;

[0040] Figure 7 A flow chart of a control method for a die-casting system provided in an embodiment of the present disclosure;

[0041] Figure 8 A flow chart of a control method for a die-casting system provided in an embodiment of the present disclosure.

[0042] The reference numerals in the figures represent respectively:

[0043] 1-die casting machine body; 11-first body; 12-second body;

[0044] 2-mold; 21-first sub-mold; 22-second sub-mold; x-universal part; x1-hook structure; x11-rod part; x12-connecting end; y-difference part; y1-groove structure; y11-entry section; y111-large size section; y112-small size section; y12-accommodation section;

[0045] 3-mold replacement system; 31-conveying platform; 3101-first conveying position; 31011-first sub-limiting part; 3102-second conveying position; 31021-second sub-limiting part; 311-rolling part; 3111-first sub-rolling part; 3112-second sub-rolling part; z-roller; 32-driving structure.

[0046] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0048] The directional nouns involved in the embodiments of the present disclosure, such as "upper", "lower", "side", etc., are generally based on the relative directional relationship between the structures when the components in the die-casting system are usually arranged, and these directional nouns are used only to more clearly describe the relationship between the structures, not to describe the absolute directional. When the components in the die-casting system are placed in different postures, the directional may change, for example, "upper" and "lower" may be interchangeable.

[0049] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art.

[0050] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0051] In a first aspect, an embodiment of the present disclosure provides a die casting system.

[0052] refer to Figure 1-6 , the die casting system of the embodiment of the present disclosure includes a die casting machine body 1, a die 2 and a die replacement system 3;

[0053] The mold 2 includes a common part x and a difference part y, the common part x is fixedly mounted on the die-casting machine body 1, and the difference part y is detachably connected to the common part x;

[0054] The mold changing system 3 comprises a transport platform 31, and the transport platform 31 is used to support and transport the difference part y.

[0055] The die casting system provided by the embodiment of the present disclosure is divided into a common part and a difference part, and when replacing the die, only the difference part actually needs to be replaced, which is conducive to improving the replacement efficiency of the die and reducing the cost of developing and manufacturing the die. The die casting system also includes a die replacement system, and the transport platform of the die replacement system can support and transport the difference part, and in the process of installing the difference part, the difference part can be stably placed on the transport platform without being in a suspended state, which is safer and more stable during the installation process, which is conducive to further improving the replacement efficiency of the die.

[0056] In some embodiments, reference Figure 1The transport platform 31 has a rolling portion 311, and the rolling portion 311 is used to support and move the difference portion y.

[0057] By setting a rolling part on the conveying platform, when the common part and the differential part are connected and installed, the differential part can be easily removed from the conveying platform without the need to set up an additional structure for dragging or lifting the differential part, which is conducive to simplifying the die-casting system and improving the installation efficiency of the differential part.

[0058] Optional, reference Figure 1 The rolling portion 311 includes a plurality of rollable rollers z, and the plurality of rollable rollers z are arranged side by side.

[0059] Implementing the roller portion by means of a plurality of rollers arranged side by side can ensure that the differential portion can be easily removed even without a dedicated drive structure to drive the rollers, which is low in cost and has good stability.

[0060] In the embodiments of the present disclosure, only the rolling part is implemented by means of multiple rollers as an example. In another embodiment, the rolling part may include two rotating shafts and a flexible support plate, and the flexible support plate is mounted outside the two opposite rotating shafts and moves under the drive of the two rotating shafts. The differential part may be placed on the flexible support plate, and the movement of the flexible support plate drives the differential part to move.

[0061] In some embodiments, reference Figure 1 The die-casting machine body 1 includes a first main body 11 and a second main body 12 relative to each other, the mold 2 includes a first sub-mold 21 and a second sub-mold 22, the universal part x of the first sub-mold 21 is fixedly installed on the first main body 11, and the universal part x of the second sub-mold 22 is fixedly installed on the second main body 12.

[0062] In this embodiment, the mold is divided into a first sub-mold and a second sub-mold, and the common parts of the two sub-molds are respectively installed on the main body on both sides of the die-casting machine, which can achieve more flexible product preparation.

[0063] According to the actual shape of the mold, one of the first sub-mold and the second sub-mold can be concave and the other can be convex. In this case, the convex sub-mold can be called a male mold and the concave sub-mold can be called a female mold; or the first sub-mold and the second sub-mold can both be concave. The drawings of the present disclosure only illustrate the structure between the two with a square sub-mold, without showing the specific shape of the sub-mold itself, but this does not constitute a limitation on the shape of the sub-mold.

[0064] Optional, reference Figure 1 The mold replacement system 3 also includes a driving structure 32 , which is used to drive the transport platform 31 to enter between the first body 11 and the second body 12 or to exit between the first body 11 and the second body 12 .

[0065] In this embodiment, the position of the transport platform can be flexibly controlled by means of the driving structure. When the transport platform is controlled to withdraw from between the first body and the second body, the first body and the second body of the die-casting machine can be molded together for production. When the mold needs to be replaced, the transport platform can be controlled to enter between the first body and the second body to transport the difference part of the mold to the target position, thereby improving the efficiency of mold replacement.

[0066] Optional, reference Figure 2-4 , the transport platform 31 includes a first transport position 3101 and a second transport position 3102;

[0067] The first transporting position 3101 is used to support and transport the difference portion y of the first sub-mold 21;

[0068] The second transporting position 3102 is used to support and transport the difference portion y of the second sub-mold 22 .

[0069] In this embodiment, different transport positions are used to transport different parts of different sub-moulds, so that different sub-moulds can be transported simultaneously, which is beneficial to improving the efficiency of mould replacement.

[0070] Optional, reference Figure 4 The first transporting position 3101 includes a first sub-rolling portion 3111 and a first sub-limiting portion 31011, the first sub-rolling portion 3111 is used to support the difference portion y of the first sub-mold 21, and the first sub-limiting portion 31011 is used to limit the movement of the first sub-mold 21 in a direction away from the first body 11;

[0071] The second transport position 3102 includes a second sub-rolling portion 3112 and a second sub-limiting portion 31021, the second sub-rolling portion 3112 is used to support the difference portion y of the second sub-mold 22, and the second sub-limiting portion 31021 is used to limit the movement of the second sub-mold 22 in a direction away from the second body 12.

[0072] In this embodiment, the first transport position has a first sub-rolling portion and a first sub-limiting portion, so that the difference portion of the first sub-mold placed in the first transport position can only move in a direction close to the common portion of the first sub-mold, but cannot move in the opposite direction, which is conducive to avoiding unnecessary falling events and improving the replacement efficiency of the first sub-mold. The second transport position has a second sub-rolling portion and a second sub-limiting portion, so that the difference portion of the second sub-mold placed in the second transport position can only move in a direction close to the common portion of the second sub-mold, but cannot move in the opposite direction, which is conducive to avoiding unnecessary falling events and improving the replacement efficiency of the second sub-mold.

[0073] Optional, reference Figure 4The first limiting part and the second limiting part can be formed into a concave shape, with the opening of the first limiting part facing the first body and the opening of the second limiting part facing the second body. Alternatively, the first limiting part is only a protruding structure at the part of the first transport position away from the first body, and the second limiting part is only a protruding structure at the part of the second transport position away from the second body. The shapes of the first limiting part and the second limiting part can be changed according to actual needs.

[0074] Optional, reference Figure 2-4 The first limit part and the second limit part can be arranged in sequence along a direction perpendicular to the mold locking direction, where the mold locking direction is the direction of movement of the first body and the second body when they approach each other. In this way, the size of the transport platform in the mold locking direction is small, which is conducive to transporting different sizes of difference parts, and it is not easy to have a situation where the difference parts are too large to enter the mold locking space (the mold locking space is the space between the first body and the second body).

[0075] In some embodiments, reference Figure 2-3 and 5-6, the common part x includes a retractable hook structure x1, and the different part y includes a groove structure y1, and the hook structure x1 and the groove structure y1 can be switched between a connected state and a separated state.

[0076] Based on the above arrangement, it can be ensured that the common part and the difference part of the mold can be switched between the connected state and the separated state at will. At the same time, the same common part can be adapted to a variety of difference parts with different structures or sizes, and it is only necessary to ensure that the groove structure of the corresponding size is formed on the difference part.

[0077] Optional, reference Figure 2-3 and 5-6, the hook structure x1 comprises a rod portion x11 and a connecting end portion x12, wherein the size of the connecting end portion x12 is larger than the size of the rod portion x11;

[0078] The groove structure y1 includes an entry section y11 and a accommodating section y12, which are arranged along the depth direction of the groove. The entry section y11 includes a large-size portion y111 and a small-size portion y112. The size of the large-size portion y111 is larger than the size of the connecting end x12, and the size of the small-size portion y112 is smaller than the size of the connecting end x12 and larger than the size of the rod portion x11.

[0079] Based on the above arrangement, when the difference part needs to be installed, the difference part can be moved to a position opposite to the general part with the help of a transport platform; the hook structure can be controlled to extend relative to the main body of the general part; the position of the transport platform is fine-tuned so that the groove structure of the difference part is opposite to the hook structure, so that the connecting end of the hook structure enters the accommodating section through the large-size part of the entry section of the groove structure; and the position of the transport platform is fine-tuned (so that the transport platform moves perpendicular to the clamping direction) so that the position of the connecting end of the hook structure in the accommodating section changes until the orthographic projection of the connecting end of the hook structure at the bottom of the groove structure overlaps with the orthographic projection of the small-size part at the bottom of the groove structure at least partially, or the orthographic projection of the connecting end at the bottom of the groove structure includes the orthographic projection of the small-size part at the bottom of the groove structure. At this time, the hook structure can be retracted, and since the connecting end of the hook structure is stuck by the small-size part of the entry section of the groove structure, the hook structure can drive the difference part to move in the direction close to the general part until the difference part contacts the general part (in this process, the hook structure and the groove structure are in a connected state). It can be seen that the above arrangement can make the general part and the difference part mutually positioned, which is convenient for the connection and installation of the two, and improves the stability after installation. On the other hand, when the differential part needs to be removed, the hook structure extends and presses the differential part, so that the differential part moves away from the common part (the differential part moves relative to the transport platform in the initial stage, and moves with the transport platform in the later stage); then, by controlling the micro-movement of the transport platform, the hook structure is withdrawn from the groove structure (the relevant process is the reverse process of the process described above, and the details can be referred to the above description); finally, the transport platform can transport the differential part out of the clamping space. The above process is only described by taking the replacement of a certain sub-mold as an example, and the replacement of another sub-mold is the same.

[0080] Optionally, the driving structure is further configured to drive the roller of the rolling part to move, so as to improve the efficiency of the movement of the differentiating part when the hook structure of the common part pulls the differentiating part. When the hook structure is extended and matched with the groove structure of the differentiating part, the driving structure can also drive the transport platform to move in a direction close to the common part, so as to reduce the distance that the hook structure needs to extend.

[0081] Optionally, the bottom of the transport platform has rollers, and the driving structure is also connected to the rollers to drive the rollers to move and drive the transport platform to move. In this way, the movement resistance of the transport platform is small and the transport efficiency is high. In the specific implementation, the aforementioned driving structure can be one or more, and the specific number is determined according to the needs.

[0082] Optionally, the die-casting system further includes a hydraulic clamp or a clamping pin to further fix the difference part and the common part as a whole to the die-casting machine body. In this way, the connection stability between the difference part and the common part can be effectively improved, and the working stability of the die-casting system in subsequent production can be improved. Optionally, the hydraulic clamp or the clamping pin can be embedded in the die-casting machine body or embedded in the common part.

[0083] Optional, reference Figure 6 , the large-size portion y111 and the small-size portion y112 of the entry segment y11 are gradually extended. This can effectively reduce the time and movement resistance of the process of connecting the hook structure and the groove structure together through the mobile handling platform, thereby improving the installation efficiency of the mold. Optionally, the entry segment y11 can be pear-shaped as a whole.

[0084] Optionally, the connecting end x12 of the hook structure x1 may be cylindrical or square, etc. The receiving section y12 of the groove structure y1 may be cylindrical or square, etc. The shape definition here is only an example and can be adjusted as required.

[0085] Optionally, the die-casting system further includes a temperature control system, which is embedded in the die-casting machine body.

[0086] The die-casting system of the disclosed embodiment can be used for manufacturing aluminum alloy products. Before the differential part is transported by means of a transport platform, the differential part can be moved to the transport platform by means of hoisting. In addition, the fluid connection of the die-casting system of the disclosed embodiment can adopt the Stäubli automatic quick-connect plate solution, that is, in the mold closing state (that is, the state where the first sub-mold and the second sub-mold are fitted to form a sealed chamber), the cooling lines respectively arranged in the differential part and the common part are connected by a telescopic hook structure.

[0087] In summary, the die-casting system provided by the embodiment of the present disclosure not only has a high efficiency in changing the mold, but also ensures that the process of changing the mold is safer and more stable; at the same time, the universal part of the same mold can be adapted to different differential parts, which can greatly reduce the development costs of different molds and achieve the purpose of cost optimization. Since the universal part is installed on the main body of the die-casting machine for a long time, when changing the mold, only the differential part with a smaller weight needs to be moved, making the process of automatically changing the mold safer and faster.

[0088] In a second aspect, an embodiment of the present disclosure provides a control method for a die-casting system. The die-casting system here is as described above and will not be described again here. The method can be executed by a controller or control device in the die-casting system.

[0089] refer to Figure 7 , the method comprises:

[0090] Step 701 : Control the transport platform 31 of the mold 2 transport system to move, so as to transport the different portion y of the mold 2 to a target position. When the different portion y is located at the target position, it is opposite to the common portion x of the mold 2 .

[0091] The purpose of this step is to control the movement of the transport platform to control the difference part to move to the target position, so as to facilitate the connection between the difference part and the common part. The specific details can be referred to the above embodiment, which will not be repeated here.

[0092] Step 702 : Control the common part x of the mold 2 to be connected with the different part y of the mold 2 .

[0093] In this step, controlling the connection between the common part and the differential part may refer to controlling the working state of the hydraulic clamp or the clamping pin of the die casting system to further fix the differential part and the common part as a whole to the die casting machine body. Alternatively, controlling the connection structure (such as the hook structure described above) provided on the common part and the connection structure (such as the groove structure described above) provided on the differential part to be connected to each other.

[0094] Optional, reference Figure 8 , step 702 includes:

[0095] Step 7021: Control the hook structure x1 to extend so that the connecting end x12 of the hook structure x1 enters the accommodating section y12 of the groove structure y1 through the large-size portion y111 of the entering section y11 of the groove structure y1.

[0096] Step 7022: Control the movement of the transport platform 31 so that the orthographic projection of the connecting end x12 of the hook structure x1 at the bottom of the groove structure y1 at least partially overlaps with the orthographic projection of the small-size portion y112 at the bottom of the groove structure y1.

[0097] Step 7023: Control the transport platform 31 to move toward the universal portion x, and control the hook structure x1 to retreat until the difference portion y contacts the universal portion x.

[0098] Step 7024: Fixedly connect the common part x and the different part y.

[0099] The above steps 7021-7023 can be implemented by the controller or control device by accurately controlling the position of the transport platform and the length of the hook structure. Step 7024 can be implemented by the controller controlling the state of the hydraulic clamp or the clamping pin. The details of the above steps can all be referred to the previous embodiments, and will not be repeated here.

[0100] In summary, the embodiment of the present disclosure provides a control method for a die-casting system, which is used to replace a die of the die-casting system. With this method, the replacement efficiency of the die can be higher and the safety can be better.

[0101] In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

[0102] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only.

[0103] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A die casting system, characterized in that: It comprises a die-casting machine body (1), a die (2) and a die replacement system (3); The mold (2) comprises a common part (x) and a difference part (y), wherein the common part (x) is fixedly mounted on the die-casting machine body (1), and the difference part (y) is detachably connected to the common part (x); The mold replacement system (3) comprises a transport platform (31), and the transport platform (31) is used to support and transport the difference part (y).

2. The die casting system according to claim 1, characterized in that: The transport platform (31) has a rolling portion (311), and the rolling portion (311) is used to support and move the difference portion (y).

3. The die casting system according to claim 2, characterized in that: The rolling portion (311) includes a plurality of rollable rollers (z), and the plurality of rollable rollers (z) are arranged side by side.

4. The die casting system according to any one of claims 1 to 3, characterized in that: The die-casting machine body (1) comprises a first body (11) and a second body (12) which are opposite to each other; the mold (2) comprises a first sub-mold (21) and a second sub-mold (22); the universal part (x) of the first sub-mold (21) is fixedly mounted on the first body (11); and the universal part (x) of the second sub-mold (22) is fixedly mounted on the second body (12).

5. The die casting system according to claim 4, characterized in that: The mold replacement system (3) further comprises a driving structure (32), wherein the driving structure (32) is used to drive the transport platform (31) to enter between the first body (11) and the second body (12) or to exit between the first body (11) and the second body (12).

6. The die casting system according to claim 4, characterized in that: The transport platform (31) comprises a first transport position (3101) and a second transport position (3102); The first transport position (3101) is used to support and transport the difference portion (y) of the first sub-mold (21); The second transport position (3102) is used to support and transport the difference portion (y) of the second sub-mold (22).

7. The die casting system according to claim 6, characterized in that: The first transporting position (3101) comprises a first sub-rolling portion (3111) and a first sub-limiting portion (31011), wherein the first sub-rolling portion (3111) is used to support the difference portion (y) of the first sub-mold (21), and the first sub-limiting portion (31011) is used to limit the movement of the first sub-mold (21) in a direction away from the first body (11); The second transport position (3102) includes a second sub-rolling portion (3112) and a second sub-limiting portion (31021), wherein the second sub-rolling portion (3112) is used to support the difference portion (y) of the second sub-mold (22), and the second sub-limiting portion (31021) is used to limit the movement of the second sub-mold (22) in a direction away from the second body (12).

8. The die casting system according to any one of claims 1 to 3 and 5 to 7, characterized in that: The common part (x) includes a retractable hook structure (x1), and the different part (y) includes a groove structure (y1). The hook structure (x1) and the groove structure (y1) can be switched between a connected state and a separated state.

9. The die casting system according to claim 8, characterized in that: The hook structure (x1) comprises a rod portion (x11) and a connecting end portion (x12), and the size of the connecting end portion (x12) is larger than the size of the rod portion (x11); The groove structure (y1) includes an entry section (y11) and a receiving section (y12), wherein the entry section (y11) and the receiving section (y12) are arranged along the depth direction of the groove, and the entry section (y11) includes a large-sized portion (y111) and a small-sized portion (y112), wherein the size of the large-sized portion (y111) is larger than the size of the connecting end portion (x12), and the size of the small-sized portion (y112) is smaller than the size of the connecting end portion (x12) and larger than the size of the rod portion (x11).

10. The die casting system according to claim 9, characterized in that: The large-size portion (y111) and the small-size portion (y112) of the entry section (y11) extend gradually.

11. A control method for a die casting system, characterized in that: The die casting system is as described in any one of claims 1 to 10, and the method comprises: Controlling the movement of a transport platform (31) of the mold (2) transport system to transport the difference portion (y) of the mold (2) to a target position, wherein the difference portion (y) is opposite to the common portion (x) of the mold (2) when located at the target position; The common part (x) of the mold (2) is controlled to be connected with the different part (y) of the mold (2).

12. The method according to claim 11, characterized in that The common part (x) includes a retractable hook structure (x1), and the difference part (y) includes a groove structure (y1), and the hook structure (x1) and the groove structure (y1) can switch between a connected state and a separated state; the hook structure (x1) has a rod part (x11) and a connecting end part (x12), and the size of the connecting end part (x12) is larger than the size of the rod part (x11); the groove structure (y1) includes an entry section (y11) and a receiving section (y12), and the entry section (y11) and the receiving section (y12) are arranged along the depth direction of the groove, and the entry section (y11) includes a large-size part (y111) and a small-size part (y112), and the size of the large-size part (y111) is larger than the size of the connecting end part (x12), and the size of the small-size part (y112) is smaller than the size of the connecting end part (x12) and larger than the size of the rod part (x11); The control of connecting the common part (x) of the mold (2) with the difference part (y) of the mold (2) comprises: Controlling the hook structure (x1) to extend so that the connecting end (x12) of the hook structure (x1) enters the receiving section (y12) of the groove structure (y1) through the large-size portion (y111) of the entry section (y11) of the groove structure (y1); Controlling the movement of the transport platform (31) so that the orthographic projection of the connecting end (x12) of the hook structure (x1) at the bottom of the groove structure (y1) at least partially overlaps with the orthographic projection of the small-size portion (y112) at the bottom of the groove structure (y1); The transport platform (31) is controlled to move in a direction approaching the universal portion (x), and the hook structure (x1) is controlled to retreat until the differential portion (y) contacts the universal portion (x); the universal portion (x) and the differential portion (y) are fixedly connected.

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