Die casting system and construction method and device thereof

Abstract

The invention relates to a die-casting system and a construction method and device thereof. The method comprises the steps that a die-casting cavity and a die-casting mold used for forming a target casting are designed according to the target casting; the die-casting central axis of the die-casting cavity is determined according to the die-casting cavity, the die central axis of the die-casting die is determined according to the die-casting die, and the die-casting central axis and the die central axis are coaxially arranged; and according to the die-casting die, a die-casting machine and a die-casting machine central axis of the die-casting machine are determined, and the die-casting machine central axis, the die-casting central axis and the die central axis are coaxially arranged. According to the method, a die-casting central axis, a die central axis and a die-casting machine central axis are coaxially arranged, so that the stress balance center of component force of die expansion force of molten metal liquid in a die-casting cavity in the die locking direction can act on the die central axis and the die-casting machine central axis; therefore, the problem that the mold locking force is unbalanced due to the fact that the target casting is irregular is solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle body parts, and in particular, to a die-casting system and a construction method and device thereof. Background Art

[0002] With the development of new energy vehicles, considering the requirements of strength and lightness, some body parts are manufactured by integrated die casting. In die casting production, the die casting system includes die casting molds and die casting machines. The die casting machine hydraulically injects molten metal into the die casting cavity of the die casting mold under pressure and cools it to form a solid metal casting after the mold is opened.

[0003] In the related art, the central axis of the die casting machine and the central axis of the mold are usually arranged coaxially in the clamping direction to balance the clamping force. However, the target casting to be die-cast is usually irregular, and the existence of the die expansion force, especially in medium and high pressure casting, will lead to unbalanced clamping force. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a die-casting system and a construction method and device thereof.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for constructing a die-casting system is provided, comprising:

[0006] Designing a die-casting cavity and a die-casting mold for molding the target casting according to the target casting;

[0007] Determine the die-casting center axis of the die-casting cavity according to the die-casting cavity, determine the die-casting mold center axis according to the die-casting mold, and arrange the die-casting center axis coaxially with the mold center axis; wherein the die-casting center axis extends along the clamping direction of the die-casting mold;

[0008] The die-casting machine and the die-casting machine center axis of the die-casting machine are determined according to the die-casting mold, and the die-casting machine center axis is coaxially arranged with the die-casting center axis and the mold center axis.

[0009] Optionally, the step of determining the die-casting center axis of the die-casting cavity according to the die-casting cavity comprises:

[0010] Obtaining a projection of the die-casting cavity in a first plane; wherein the first plane is a plane perpendicular to a clamping direction;

[0011] Constructing a rectangular coordinate system in the first plane so that the area of ​​the projection is evenly distributed in four quadrants of the rectangular coordinate system;

[0012] The axis passing through the intersection of the rectangular coordinate system and evenly distributing the projection area and along the clamping direction is the die-casting center axis.

[0013] Optionally, the method further comprises:

[0014] The die-casting machine ejector plate of the die-casting machine is designed, and the central axis of the ejector plate of the die-casting machine is arranged coaxially with the central axis of the die-casting machine, the central axis of the die-casting, and the central axis of the mold.

[0015] Optionally, the step of designing a die-casting machine ejector plate of the die-casting machine comprises:

[0016] Obtaining a projection of an ejector plate of a die-casting machine in a first plane; wherein the first plane is a plane perpendicular to a clamping direction;

[0017] Obtaining the geometric center of the projection of the ejector plate;

[0018] An axis parallel to the clamping direction is constructed through the geometric center of the projection of the ejector plate, and the axis is defined as the central axis of the projection of the ejector plate.

[0019] Optionally, the step of determining the die-casting machine and the die-casting machine center axis of the die-casting machine according to the die-casting mold comprises:

[0020] Obtaining a quadrilateral projection of four die-casting machine bars of the die-casting machine in a first plane; wherein the first plane is a plane perpendicular to the clamping direction;

[0021] Obtaining the geometric center of the quadrilateral projection;

[0022] An axis parallel to the clamping direction is constructed through the geometric center, and the axis is defined as the central axis of the die casting machine; and / or

[0023] The step of determining the center axis of the die casting mold according to the die casting mold comprises:

[0024] Obtaining a mold projection of the die-casting mold in a first plane; wherein the first plane is a plane perpendicular to a clamping direction;

[0025] Obtaining the geometric center of the mold projection;

[0026] An axis parallel to the clamping direction is constructed through the geometric center of the mold projection, and the axis is defined as the center axis of the mold.

[0027] Optionally, the method further comprises:

[0028] Designing a runner and a pouring gate of a die-casting mold according to the target casting; the pouring gate is located on one side of the die-casting cavity, and the central axis of the pouring gate is parallel to the central axis of the die-casting;

[0029] The position of the injection center of the die-casting machine is determined according to the position of the pouring gate.

[0030] According to a second aspect of an embodiment of the present disclosure, there is also provided a die casting system for forming a target casting, comprising:

[0031] A die-casting mold, comprising a die-casting cavity for molding a target casting, wherein in a clamping direction, a die-casting center axis of the die-casting cavity is coaxially arranged with a mold center axis of the die-casting mold, wherein the die-casting center of the die-casting cavity is an axis parallel to the clamping direction and passing through a force balance center of the die-casting cavity; and

[0032] A die-casting machine is used to unlock the die-casting mold in a locking direction, wherein in the locking direction, a die-casting machine center axis of the die-casting machine is coaxially arranged with the die-casting center axis and the mold center axis.

[0033] Optionally, the die-casting mold includes a pouring gate and a runner connecting the pouring gate and the die-casting cavity; the pouring gate is located on the symmetric center line of the die-casting cavity and is located on one side of the die-casting cavity; wherein the symmetric center line of the die-casting cavity is the symmetric center line of the target casting;

[0034] The die-casting machine comprises an injection center, and the injection center is arranged opposite to the pouring gate.

[0035] Optionally, the die-casting machine further comprises a die-casting machine ejector plate, and in the clamping direction, the ejector plate center axis of the die-casting machine ejector plate is coaxially arranged with the die-casting machine center axis, the die-casting center axis, and the mold center axis.

[0036] Optionally, the die-casting machine comprises four die-casting machine bars, and projections of the four die-casting machine bars in the first plane are arranged in a rectangular shape, and an axis along the clamping direction and passing through the geometric center of the rectangle is the central axis of the die-casting machine.

[0037] According to a third aspect of the embodiment of the present disclosure, there is also provided a construction device for a die casting system, comprising:

[0038] A first design module is configured to design a die-casting cavity and a die-casting mold for molding the target casting according to the target casting;

[0039] A first determining module is configured to determine a die-casting central axis of the die-casting cavity according to the die-casting cavity, determine a die-casting die central axis according to the die-casting die, and arrange the die-casting central axis coaxially with the die central axis; wherein the die-casting central axis extends along a clamping direction of the die-casting die;

[0040] The second determination module is configured to determine the die-casting machine and the die-casting machine center axis of the die-casting machine according to the die-casting mold, and arrange the die-casting machine center axis coaxially with the die-casting center axis and the mold center axis.

[0041] Through the above technical scheme, that is, the construction method of the die-casting system disclosed in the present invention, the die-casting cavity and the die-casting mold are first designed according to the target casting, wherein the die-casting cavity is a cavity surrounded by the die-casting mold for molding the target casting, and then the die-casting center axis of the die-casting cavity is determined according to the die-casting cavity, wherein the die-casting center axis is an axis parallel to the clamping direction and passing through the force balance center of the die-casting cavity, and by arranging the die-casting center axis coaxially with the mold center axis of the die-casting mold, the die expansion force of the die-casting cavity can act on the mold center axis, and finally, the die-casting machine and the die-casting machine center axis are determined according to the die-casting mold, and the die-casting machine center line is arranged coaxially with the die-casting center axis and the mold center axis to achieve a three-axis coaxial arrangement. Through the above-mentioned construction method, the die-casting center axis, the mold center axis and the die-casting machine center axis are coaxially arranged. During the die-casting process, the component of the mold expansion force of the molten metal liquid in the die-casting cavity in the locking direction acts on the mold center axis of the die-casting mold with the force balance center as the moment center, and then is transmitted to the die-casting machine center axis, thereby solving the problem of uneven locking force caused by the irregularity of the target casting.

[0042] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0044] Figure 1 is a flow chart of a method for constructing a die casting system provided by an exemplary embodiment of the present disclosure.

[0045] Figure 2 is a flow chart of a construction device of a die casting system provided by an exemplary embodiment of the present disclosure.

[0046] Figure 3 It is a schematic structural diagram of a die-casting system provided by an exemplary embodiment of the present disclosure.

[0047] Figure 4 A schematic diagram of the disassembled structure of a die-casting system provided by an exemplary embodiment of the present disclosure.

[0048] Figure 5 A schematic structural diagram of a die-casting system for ejecting a target casting after molding is provided in an exemplary embodiment of the present disclosure.

[0049] Figure 6 Schematic diagram of a die-casting mold and a die-casting machine of a die-casting system provided by an exemplary embodiment of the present disclosure, viewed along a clamping direction.

[0050] Figure 7 It is a schematic diagram of a die-casting mold and a die-casting cavity of a die-casting system provided by an exemplary embodiment of the present disclosure observed along the clamping direction.

[0051] Description of Reference Numerals

[0052] 10-target casting; 20-die casting mold; 20a-die casting center axis; 20b-die mold center axis; 21-ejector mechanism; 21a-ejector center axis; 210-die casting cavity; 220-pouring gate; 230-runner; 30-die casting machine; 30a-die casting machine center axis; 30b-shot center; 31-die casting machine plate; 31a-plate center axis; 32-die casting machine bar; 33-die casting machine ejector plate; 33a-ejector plate center axis;

[0053] 200 - construction device of die-casting system; 201 - first design module; 202 - first determination module; 203 - second determination module. DETAILED DESCRIPTION

[0054] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0055] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0056] In the related technologies, most of the current industry can achieve the coincidence of the die-casting mold center and the die-casting machine center, but do not consider the positional relationship between the die-casting center of the target casting and the center of the mold and the die-casting machine, that is, there is no record of the scheme for achieving the coincidence of the product center (die-casting center in this embodiment), the mold center axis and the die-casting machine center axis. There is also no arrangement scheme for the center of the die-casting machine ejector plate 33 to coincide with the above three.

[0057] This embodiment mainly solves the problems existing in the related art from two aspects: that is, this solution is used to solve the problem of uneven clamping force caused by the misalignment between the product center and the die-casting machine center, and also to solve the problem of ejection failure caused by the misalignment between the product ejection center and the ejector plate center of the die-casting machine.

[0058] Figure 1 FIG. 1 is a flow chart showing a method for constructing a die casting system according to an exemplary embodiment. Figure 1 As shown, the method for constructing the die-casting system includes steps S101 to S103.

[0059] In step S101 , a die-casting cavity and a die-casting mold for molding the target casting are designed according to the target casting.

[0060] First, a process analysis is performed on the target casting 10, including alloy, casting size and structure, and casting technology analysis; secondly, a die-casting process scheme is designed, including the die-casting cavity 210, parting surface, pouring gate 220 position, runner 230 layout, etc.; finally, the structure design of the die-casting mold 20 is performed, including the die-casting cavity 210, ejection mechanism 21, cooling mechanism, etc.

[0061] In step S102, a die-casting central axis of the die-casting cavity is determined according to the die-casting cavity, a mold central axis of the die-casting mold is determined according to the die-casting mold, and the die-casting central axis is coaxially arranged with the mold central axis.

[0062] The die casting center axis is parallel to the clamping direction and passes through the force balance center of the die casting cavity, so that during the die casting process, the component of the expansion force of the molten metal liquid in the die casting cavity in the clamping direction can be balanced with the force balance center as the moment center. Figure 3 and Figure 4 The direction shown by A in the figure; the first plane is a plane perpendicular to the clamping direction.

[0063] In the design of the whole vehicle, the shape and size of the product are designed according to the matching of the opponent parts, the structural connection mode, and the product function. The target casting 10 determines the position of the die-casting center to a certain extent. According to the size and shape of the target casting 10, the die-casting mold 20 for producing the product is designed to ensure that the die-casting center axis 20a coincides with the mold center axis 20b in the clamping direction.

[0064] In step S103, the die-casting machine and the die-casting machine center axis are determined according to the die-casting mold, and the die-casting machine center axis is coaxially arranged with the die-casting center axis and the mold center axis.

[0065] Wherein, the die-casting center axis, the mold center axis and the die-casting machine center axis all extend along the clamping direction of the die-casting mold.

[0066] According to the size and shape of the die-casting mold 20, the die-casting machine 30 is designed and / or selected to ensure that the die-casting center axis, the mold center axis 20b and the die-casting machine center axis 30a coincide with each other in the clamping direction. The die-casting machine 30 is determined according to the size and shape of the die-casting mold 20, so that the die-casting machine center axis 30a and the mold center axis 20b are coaxially arranged in the clamping direction, so that the die-casting center axis 20a, the mold center axis 20b and the die-casting machine center axis 30a can be coaxially arranged in a straight line to avoid uneven clamping force. The step of determining the die-casting machine 30 according to the die-casting mold 20 includes determining the positions of the die-casting machine plate 31, the die-casting machine injection center 30b, the die-casting machine bar 32 and the die-casting machine ejector plate 33.

[0067] Through the above technical scheme, that is, the construction method of the die-casting system disclosed in the present invention, the die-casting cavity and the die-casting mold are first designed according to the target casting, wherein the die-casting cavity is a cavity surrounded by the die-casting mold for molding the target casting, and then the die-casting center axis 20a of the die-casting cavity is determined according to the die-casting cavity, wherein the die-casting center axis 20a is an axis parallel to the clamping direction and passing through the force balance center of the die-casting cavity, and by arranging the die-casting center axis 20a and the mold center axis 20b of the die-casting mold 20 coaxially, the die expansion force of the die-casting cavity can act on the mold center axis 20b, and finally, the die-casting machine and the die-casting machine center axis 30a are determined according to the die-casting mold, and the die-casting machine center axis 30a is arranged coaxially with the die-casting center axis 20a and the mold center axis 20b to achieve a three-axis coaxial arrangement. Through the above-mentioned construction method, that is, the die-casting center axis 20a, the mold center axis 20b and the die-casting machine center axis 30a are coaxially arranged, so that during the die-casting process, the component of the mold expansion force of the molten metal liquid in the die-casting cavity in the locking direction acts on the mold center axis of the die-casting mold with the force balance center as the moment center, and then is transmitted to the die-casting machine center axis, thereby solving the problem of uneven locking force caused by the irregularity of the target casting.

[0068] In yet another embodiment, the step of determining the die casting center axis of the die casting cavity according to the die casting cavity comprises:

[0069] The projection of the die-casting cavity in the first plane is obtained; wherein the first plane is a plane perpendicular to the clamping direction (it may be a plane where the parting surface of the die-casting mold is located or a plane parallel to the parting surface of the die-casting mold).

[0070] A rectangular coordinate system is constructed in the first plane so that the projected areas are evenly distributed in the four quadrants of the rectangular coordinate system.

[0071] The axis passing through the intersection of the rectangular coordinate system and evenly distributing the projection area and along the clamping direction is the die-casting center axis.

[0072] The intersection of the average distribution of the projection area in the rectangular coordinate system is the force balance center of the die casting cavity. An axis parallel to the clamping direction is constructed through the force balance center, and the axis is defined as the die casting center axis.

[0073] The projection of the die casting cavity in the first plane corresponds to the projection shape of the target casting. It is necessary to obtain the force balance center of the projection, which can also be understood as the torque center. The multiple force components of the expansion force in the clamping direction are evenly distributed on the projection surface. Therefore, the force balance center can be regarded as a point where multiple force components can reach or maintain balance relative to the torque of the force balance center. The balance here does not refer to the balance achieved by the opposite directions of the torque (i.e., one positive and one negative), but can be the balance with the same direction, distributing the expansion force evenly in the four quadrants of the above-mentioned rectangular coordinate system. For example, when the force balance center is used as the fulcrum, the torque components in the four quadrants of the above-mentioned rectangular coordinate system in parallel to the clamping direction are the same. The projection shape of the target casting can be regular, and the corresponding force balance center is its geometric center; the projection of the target casting may also be irregular. When the target casting is irregular in shape, a rectangular coordinate system is constructed in the first plane so that the projection area is evenly distributed in the four quadrants of the rectangular coordinate system. Because the pressure of the die casting cavity force is the same, the area distribution of the component force in the first plane determines the magnitude of the force in each quadrant. The center of the rectangular coordinate system is the force balance center of the die casting cavity, and then an axis parallel to the clamping direction is constructed through the force balance center, which is defined as the die casting center axis.

[0074] During the die-casting process, the die-casting machine 30 hydraulically injects the molten metal into the die-casting cavity 210 of the die-casting mold 20 under pressure. At this time, a die-expanding force will be generated in the die-casting cavity 210, and the die-expanding force acts on the side wall of the die-casting cavity 210. The component of the die-expanding force in the clamping direction will directly act on the die-casting mold, so that the center where multiple component forces are balanced is defined as the force balance center, and the die-casting center axis 20a is defined as passing through the force balance center and parallel to the axis in the clamping direction. When the die-casting center axis 20a is coaxially arranged with the mold center axis of the die-casting mold 20 in the clamping direction, the die-expanding force generated by the molten metal in the die-casting cavity 210 can act on the mold center axis 20b and be transmitted to the die-casting machine center axis 30a of the die-casting machine 30, thereby avoiding the imbalance of the clamping force.

[0075] In yet another embodiment, the method further comprises:

[0076] Design the ejector plate of the die-casting machine, and arrange the center axis of the ejector plate of the die-casting machine coaxially with the center axis of the die-casting machine, the center axis of the die casting, and the center axis of the mold.

[0077] According to the size and shape of the target casting 10, the size of the ejector plate 33 of the die casting machine is designed, and in the direction of the mold locking, the die casting center 20a is ensured to coincide with the center axis 33a of the ejector plate. Usually, the die casting mold 20 is designed to be provided with an ejector mechanism 21 for ejecting the target casting 10 after molding, and the ejection operation is realized by the ejector plate 33 of the die casting machine. Therefore, in this method, the center axis 33a of the ejector plate is arranged to be coaxial with the center axis 30a of the die casting machine, the center axis 20a of the die casting, and the center axis 20b of the mold. During the ejection operation, an ejection force is applied to the target casting 10 after molding, and the ejection force can act on the center position of the casting in the die casting cavity 210 through the ejector mechanism 21, which can ensure the smooth ejection of the die casting, and avoid the ejection failure caused by the center axis 33a of the ejector plate not coinciding with the center of the molded casting when the molded casting is ejected.

[0078] In yet another embodiment, the step of designing a die casting machine ejector plate of a die casting machine comprises:

[0079] Obtain an ejector plate projection of the die-casting machine ejector plate in a first plane; wherein the first plane is a plane perpendicular to the clamping direction.

[0080] Obtain the geometric center of the ejector plate projection.

[0081] An axis parallel to the clamping direction is constructed through the geometric center of the projection of the ejector plate, and the axis is defined as the central axis of the projection of the ejector plate.

[0082] In yet another embodiment, the method further comprises:

[0083] The steps of determining the die casting machine and the die casting machine center axis of the die casting machine according to the die casting mold include:

[0084] Obtain the quadrilateral projection of four die-casting machine bars of the die-casting machine in the first plane; wherein the first plane is a plane perpendicular to the clamping direction.

[0085] Get the geometric center of the quadrilateral projection.

[0086] An axis parallel to the clamping direction is constructed through the geometric center, and the axis is defined as the center axis of the die-casting machine.

[0087] The die-casting machine center axis 30a is formed by obtaining the quadrilateral projection of the die-casting machine bar in the first plane and obtaining the geometric center of the quadrilateral projection, and constructing an axis parallel to the clamping direction through the geometric center.

[0088] In yet another embodiment, the method further comprises:

[0089] A mold projection of the die-casting mold in a first plane is obtained; wherein the first plane is a plane perpendicular to the clamping direction.

[0090] Gets the mold geometric center of the mold projection.

[0091] An axis parallel to the clamping direction is constructed through the geometric center of the mold, and the axis is defined as the mold center axis 20b.

[0092] As above, the mold center axis 20b is formed by obtaining the mold projection of the die-casting mold in the first plane and obtaining the geometric center of the mold projection, and constructing an axis parallel to the clamping direction through the geometric center.

[0093] In another embodiment, the step of determining the die-casting machine 30 according to the die-casting mold 20 and arranging the central axis 30a of the die-casting machine coaxially with the central axis 20b of the mold includes:

[0094] The die casting machine plate 31 is determined according to the die casting die 20, and the center axis 31a of the plate is coaxially arranged with the center axis 20b of the die.

[0095] The die casting machine 30 includes a die casting machine plate 31, and four die casting machine bars 32 connected to the die casting machine plate 31 and extending in the die clamping direction. The projections of the four die casting machine bars 32 in a plane perpendicular to the die clamping direction are arranged in a rectangular shape, and the axis along the die clamping direction and passing through the geometric center of the rectangle is the die casting machine center axis 30a. The bar center axis 31a coincides with the geometric center of the rectangle, that is, in the die clamping direction, the plate center axis 31a, the geometric centers 31a of the four die casting machine bars coincide with the die casting machine center axis 30a.

[0096] In yet another embodiment, the method further comprises:

[0097] The runner 230 and the pouring gate 220 of the die-casting mold 20 are designed according to the target casting 10 . The pouring gate is located at one side of the die-casting cavity, and the central axis of the pouring gate is parallel to the central axis of the die-casting.

[0098] The position of the shot center 30 b of the die casting machine is determined according to the positions of the runner 230 and the pouring gate 220 .

[0099] The position of the injection center 30b of the die casting machine is designed according to the shape and position of the runner and the pouring gate 220 designed for the target casting 10. The die casting mold 20 also includes a runner 230 and a pouring gate 220, wherein the pouring gate 220 is connected to the die casting cavity 210 through the runner 230. The design of the die casting mold 20 also includes the design of the runner 230 and the design of the pouring gate 220. The position of the injection center is arranged opposite to the flow gate to receive the molten metal liquid from the injection center. It should be noted that, as Figure 6As shown, when the target casting 10 is an axisymmetric structure, the target casting 10 has the same center line as the die casting cavity 210, that is, the die casting cavity center line B, and the center axis of the pouring port 220 is located in the plane where the extension line of the die casting cavity center line B intersects with the die casting center axis 20a, and is parallel to the die casting center axis 20a, and is located on one side of the die casting cavity 210. For example, it can be located below the die casting cavity. It is understandable that if Figure 6 After the die in the die casting mold 20 is rotated by a certain angle, for example, 90 degrees clockwise, the pouring gate can also be arranged on the left side of the die casting cavity 210. Similarly, according to the different arrangements of the die casting mold 20, it can also be arranged on the upper side or right side of the die casting cavity 210. The position of the injection center 30b of the die casting machine can be determined according to the position of the pouring gate 220 of the die casting mold 20, and the two can be arranged relative to each other in the clamping direction, that is, the injection center 30b is arranged coaxially with the central axis of the pouring gate.

[0100] It is worth noting that in some embodiments, the molten metal at the junction of the injection center and the pouring port 220 will also generate a mold expansion force. Therefore, at this time, after comprehensive consideration of the die-casting center, a new die-casting center is determined (at this time, the new die-casting center will be closer to the injection center than the original die-casting center), and the die-casting center is arranged coaxially with the mold center axis 20b.

[0101] Figure 2 FIG. 2 is a block diagram of a construction device 200 for a die casting system according to an exemplary embodiment. Figure 2 As shown, based on the same inventive concept, the construction device 200 of the die-casting system includes a first design module 201 , a first determination module 202 and a second determination module 203 .

[0102] The first design module 201 is configured to design a die casting cavity 210 and a die casting mold 20 for molding the target casting 10 according to the target casting 10 .

[0103] The first determination module 202 is configured to determine a die-casting central axis of the die-casting cavity according to the die-casting cavity, determine a mold central axis of the die-casting mold according to the die-casting mold, and arrange the die-casting central axis coaxially with the mold central axis.

[0104] The second determination module 203 is configured to determine the die-casting machine and the die-casting machine center axis of the die-casting machine according to the die-casting mold, and arrange the die-casting machine center axis 30a coaxially with the die-casting center axis 20a and the mold center axis 20b.

[0105] The construction device of the die-casting system disclosed in the present invention, the first design module 201 is configured to design a die-casting cavity and a die-casting mold according to a target casting, wherein the die-casting cavity is a cavity surrounded by the die-casting mold for molding the target casting, the first determination module 202 is configured to determine the die-casting center axis of the die-casting cavity according to the die-casting cavity, wherein the die-casting center axis is an axis parallel to the clamping direction and passing through the force balance center of the die-casting cavity, and by arranging the die-casting center axis coaxially with the mold center axis of the die-casting mold, the die expansion force of the die-casting cavity can act on the mold center axis, the second determination module 203 is configured to determine the die-casting machine and the die-casting machine center axis according to the die-casting mold, and arrange the die-casting machine center line coaxially with the die-casting center axis and the mold center axis to achieve a three-axis coaxial arrangement. Through the above-mentioned construction method, the die-casting center axis, the mold center axis and the die-casting machine center axis are coaxially arranged. During the die-casting process, the component of the mold expansion force of the molten metal liquid in the die-casting cavity in the locking direction acts on the mold center axis of the die-casting mold with the force balance center as the moment center, and then is transmitted to the die-casting machine center axis, thereby solving the problem of uneven locking force caused by the irregularity of the target casting.

[0106] Based on the same inventive concept, Figures 3 to 7 As shown, the embodiment of the present disclosure further provides a die-casting system for forming a target casting 10. The die-casting system can be constructed based on the construction method of the die-casting system described above. The die-casting system includes:

[0107] The die-casting mold 20 comprises a die-casting cavity 210 for forming a target casting 10, and a die-casting center axis 20a of the die-casting cavity is coaxially arranged with a mold center axis 20b of the die-casting mold 20, wherein the die-casting center axis 20a of the die-casting cavity is an axis parallel to the clamping direction and passing through the force balance center of the die-casting cavity 210; and a die-casting machine 30, for unlocking the die-casting mold 20 along the clamping direction, wherein in the clamping direction, the die-casting machine center axis 30a is coaxially arranged with the die-casting center axis 20a and the mold center axis 20b.

[0108] The die-casting system disclosed in the present invention coaxially arranges the die-casting center axis 20a, the mold center axis 20b and the die-casting machine center axis 30a, so that during the die-casting process, the balance center of the component of the mold expansion force of the molten metal liquid in the die-casting cavity 210 in the clamping direction can act on the mold center axis 20b and then be transmitted to the die-casting machine center axis 30a, thereby solving the problem of unbalanced clamping force caused by the irregularity of the target casting 10.

[0109] like Figure 4 and Figure 6As shown, the die-casting machine 30 may include four die-casting machine bars 32, and the projections of the four die-casting machine bars 32 in a plane perpendicular to the clamping direction are arranged in a rectangular shape, and the axis along the clamping direction and passing through the geometric center of the rectangle is the die-casting machine center axis 30a. The four die-casting machine bars 32 provide the die-casting mold 20 with a clamping force. Normally, the mold center axis 20b coincides with the above-mentioned die-casting machine center axis 30a. When the die-expanding force of the die-casting cavity 210 does not coincide with the mold center axis 20b, different forces will be generated on the four die-casting machine bars 32, thereby affecting the balance of the clamping force. The present disclosure determines the die-casting center axis 20a, and arranges the die-casting center axis 20a coaxially with the mold center axis 20b and the die-casting machine center axis 30a, so that the four die-casting machine bars 32 are uniformly stressed along the clamping direction, thereby ensuring a balanced clamping force.

[0110] In one embodiment, the die casting machine 30 includes a die casting machine plate 31. In the die locking direction, the plate center axis 31a is coaxially arranged with the die casting center axis 20a and the mold center axis 20b. In the die locking direction, the plate center axis 31a and the geometric centers of the four die casting machine 30 bars coincide with the die casting machine center axis 30a.

[0111] In another embodiment, the die-casting mold 20 includes a pouring gate 220 and a runner 230 connecting the pouring gate 220 and the die-casting cavity 210; the pouring gate 220 is located on the symmetry center line of the die-casting cavity 210 and is located on one side of the die-casting cavity 210; wherein the symmetry center line of the die-casting cavity 210 is the symmetry center line of the target casting 10. The die-casting machine 30 includes a shot center 30b of the die-casting machine, and the shot center 30b of the die-casting machine is arranged opposite to the pouring gate 220.

[0112] The die-casting mold 20 also includes a runner 230 and a pouring gate 220, wherein the pouring gate 220 is connected to the die-casting cavity 210 through the runner 230, and the design of the die-casting mold 20 also includes the design of the runner 230 and the design of the pouring gate 220, and the position of the injection center 30b of the die-casting machine is arranged relative to the pouring gate 220, that is, the two can be arranged relative to each other in the clamping direction, and the pouring gate 220 is used to receive the molten metal liquid from the injection center 30b. It should be noted that the position of the injection center 30b of the die-casting machine can be determined according to the position of the pouring gate 220 of the die-casting mold 20.

[0113] It is worth noting that the molten metal at the junction of the die-casting machine's shot center 30b and the pouring port 220 will also generate a die expansion force. Therefore, at this time, after comprehensive consideration of the die-casting center, a new die-casting center is determined (at this time, the new die-casting center 20b will be closer to the die-casting machine's shot center 30b relative to the original die-casting center), and the die-casting center axis 20a is arranged coaxially with the mold center axis 20b.

[0114] In some embodiments, the die casting machine 30 further comprises a die casting machine ejector plate 33. In the clamping direction, the ejector plate central axis 33a is coaxially arranged with the die casting central axis 20a and the mold central axis 20b.

[0115] like Figure 4 and Figure 5 As shown, the die-casting mold 20 includes an ejection mechanism 21 for ejecting the target casting 10 after molding. The ejection mechanism 21 has an ejection center axis 21a of the ejection mechanism, and the ejection operation is realized by the die-casting machine ejector plate 33 of the die-casting machine 30. Therefore, in the device, the ejector plate center axis 33a is arranged to coincide with the ejection center axis 21a and the die-casting center axis 20a. During the ejection operation, an ejection force is applied to the target casting 10 after molding. The ejection force can act on the die-casting of the casting in the die-casting cavity 210 through the ejection mechanism 21, and the ejection center axis 21a of the ejection mechanism coincides with the center of the casting (i.e., the die-casting center 20a of the die-casting mold), so as to ensure the smooth ejection of the die-casting, and avoid the ejection failure caused by the non-coincidence between the ejector plate center axis 33a of the die-casting machine 30 and the center of the molded casting when the molded casting is ejected.

[0116] Through the above technical scheme, that is, the die-casting system disclosed in the present invention, includes a die-casting mold 20 and a die-casting machine 30, wherein the die-casting mold 20 includes a die-casting cavity 210 for molding the target casting 10, and the die-casting center axis 20a of the die-casting cavity is determined according to the die-casting cavity 210, wherein the die-casting center axis 20a is the axis of the die-casting cavity 210 passing through its force balance center in the locking direction of the die-casting mold 20, and the die-casting center axis 20a is coaxially arranged with the mold center axis 20b\die-casting machine center axis 30a. In the above device, the die-casting center axis 20a, the mold center axis 20b and the die-casting machine center axis 30a are coaxially arranged, so that during the die-casting process, the balance center of the component of the mold expansion force of the molten metal liquid in the die-casting cavity 210 in the locking direction can act on the mold center axis 20b, and then be transmitted to the die-casting machine center axis 30a, thereby solving the problem of unbalanced locking force caused by the irregularity of the target casting 10, improving the die-casting production efficiency, and reducing the failure rate of the mold.

[0117] Furthermore, the die casting machine 30 further includes a die casting machine ejector plate 33, and in the clamping direction, the ejector plate central axis 33a is arranged with the die casting central axis 20a, the mold central axis 20b and the die casting machine central axis 30a, so as to solve the ejection failure problem caused by the ejection central axis 21a of the casting after molding not being coaxial with the ejector plate central axis 33a.

[0118] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. 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 to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0119] 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 method for constructing a die-casting system, characterized in that: include: Designing a die-casting cavity and a die-casting mold for molding the target casting according to the target casting; Determine the die-casting center axis of the die-casting cavity according to the die-casting cavity, determine the die-casting mold center axis according to the die-casting mold, and arrange the die-casting center axis coaxially with the mold center axis; wherein the die-casting center axis extends along the clamping direction of the die-casting mold; The die-casting machine and the die-casting machine center axis of the die-casting machine are determined according to the die-casting mold, and the die-casting machine center axis is coaxially arranged with the die-casting center axis and the mold center axis.

2. The method according to claim 1, characterized in that The step of determining the die casting center axis of the die casting cavity according to the die casting cavity comprises: Obtaining a projection of the die-casting cavity in a first plane; wherein the first plane is a plane perpendicular to a clamping direction; Constructing a rectangular coordinate system in the first plane so that the area of ​​the projection is evenly distributed in four quadrants of the rectangular coordinate system; The axis passing through the intersection of the rectangular coordinate system and evenly distributing the projection area and along the clamping direction is the die-casting center axis.

3. The method according to claim 1, characterized in that The method further comprises: The die-casting machine ejector plate of the die-casting machine is designed, and the central axis of the ejector plate of the die-casting machine is arranged coaxially with the central axis of the die-casting machine, the central axis of the die-casting, and the central axis of the mold.

4. The method according to claim 3, characterized in that The step of designing a die-casting machine ejector plate of a die-casting machine comprises: Obtaining a projection of an ejector plate of a die-casting machine in a first plane; wherein the first plane is a plane perpendicular to a clamping direction; Obtaining the geometric center of the projection of the ejector plate; An axis parallel to the clamping direction is constructed through the geometric center of the projection of the ejector plate, and the axis is defined as the central axis of the projection of the ejector plate.

5. The method according to any one of claims 1 to 4, characterized in that: The step of determining the die-casting machine and the die-casting machine center axis of the die-casting machine according to the die-casting mold comprises: Obtaining a quadrilateral projection of four die-casting machine bars of the die-casting machine in a first plane; wherein the first plane is a plane perpendicular to the clamping direction; Obtaining the geometric center of the quadrilateral projection; An axis parallel to the clamping direction is constructed through the geometric center, and the axis is defined as the central axis of the die casting machine; and / or The step of determining the center axis of the die casting mold according to the die casting mold comprises: Obtaining a mold projection of the die-casting mold in a first plane; wherein the first plane is a plane perpendicular to a clamping direction; Obtaining the geometric center of the mold projection; An axis parallel to the clamping direction is constructed through the geometric center of the mold projection, and the axis is defined as the center axis of the mold.

6. The method according to claim 1, characterized in that The method further comprises: Designing a runner and a pouring gate of a die-casting mold according to the target casting; the pouring gate is located on one side of the die-casting cavity, and the central axis of the pouring gate is parallel to the central axis of the die-casting; The position of the injection center of the die-casting machine is determined according to the position of the pouring gate.

7. A die casting system for forming a target casting, characterized in that: include: A die-casting mold, comprising a die-casting cavity for molding a target casting, wherein in a clamping direction, a die-casting center axis of the die-casting cavity is coaxially arranged with a mold center axis of the die-casting mold, wherein the die-casting center axis of the die-casting cavity is an axis parallel to the clamping direction and passing through a force balance center of the die-casting cavity; and A die-casting machine is used to unlock the die-casting mold in a locking direction, wherein in the locking direction, a die-casting machine center axis of the die-casting machine is coaxially arranged with the die-casting center axis and the mold center axis.

8. The die casting system according to claim 7, characterized in that: The die-casting mold comprises a pouring gate and a runner connecting the pouring gate and the die-casting cavity; the pouring gate is located on the symmetric center line of the die-casting cavity and is located on one side of the die-casting cavity; wherein the symmetric center line of the die-casting cavity is the symmetric center line of the target casting; The die-casting machine comprises an injection center, and the injection center is arranged opposite to the pouring gate.

9. The die casting system according to claim 7, characterized in that: The die-casting machine further comprises a die-casting machine ejector plate, wherein in the clamping direction, the ejector plate center axis of the die-casting machine ejector plate is coaxially arranged with the die-casting machine center axis, the die-casting center axis and the mold center axis.

10. The die casting system according to any one of claims 7 to 9, characterized in that: The die-casting machine comprises four die-casting machine bars, the projections of the four die-casting machine bars in the first plane are arranged in a rectangular shape, and the axis along the clamping direction and passing through the geometric center of the rectangle is the central axis of the die-casting machine.

11. A construction device for a die casting system, characterized in that: include: A first design module is configured to design a die-casting cavity and a die-casting mold for molding the target casting according to the target casting; A first determining module is configured to determine a die-casting central axis of the die-casting cavity according to the die-casting cavity, determine a die-casting die central axis according to the die-casting die, and arrange the die-casting central axis coaxially with the die central axis; wherein the die-casting central axis extends along a clamping direction of the die-casting die; The second determination module is configured to determine the die-casting machine and the die-casting machine center axis of the die-casting machine according to the die-casting mold, and arrange the die-casting machine center axis coaxially with the die-casting center axis and the mold center axis.

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