Anti-shrinkage-porosity die-casting device for automobile aluminum alloy part

Abstract

The invention discloses an automobile aluminum alloy part shrinkage porosity preventing die-casting device, and relates to the technical field of aluminum alloy part die-casting, the automobile aluminum alloy part shrinkage porosity preventing die-casting device comprises a die-casting equipment main body, the die-casting equipment main body comprises a material injection tank and a die-casting assembly, a supporting platform is installed at the bottoms of the material injection tank and the die-casting assembly, and a water tank and a controller are installed on the side face of the supporting platform; a quantitative material injection assembly is installed between the material injection tank and the die casting assembly, two sets of detection assemblies are installed on the die casting assembly, the quantitative material injection assembly can limit the flow of molten metal, the detection assemblies can detect a die, and therefore when the device is used, the die can be detected after each time of die casting, and the die casting efficiency is improved. Meanwhile, when the device injects molten metal into the die-casting assembly, the total amount of the molten metal can be limited through the quantitative injection assembly, the situation that the molten metal entering the die-casting assembly is excessive, and consequently the partial area of a finished product is too thick or too thin is prevented, and the situation that the molten metal remains on the inner wall of a feeding pipe can be prevented through the pushing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting of aluminum alloy parts, and specifically relates to a die-casting device for preventing shrinkage porosity of automotive aluminum alloy parts. Background Art

[0002] The die-casting device is also called a die-casting machine. A die-casting machine is a machine used for die-casting, including two types: a hot chamber and a cold chamber, and then it is further divided into two types: vertical and horizontal. Under pressure, the die-casting machine injects molten metal liquid into the mold for cooling and forming. After the mold is opened, a solid metal casting can be obtained;

[0003] During the production of automotive aluminum alloy parts by the existing die-casting devices, it is usually necessary to clean and exhaust the mold. However, after cleaning and exhausting, the existing die-casting devices usually do not have subsequent detection functions. Sometimes, the cleanliness and gas discharge conditions inside the mold do not meet the standards, resulting in surface defects or shrinkage porosity of the aluminum alloy parts after forming. Summary of the Invention

[0004] The purpose of the present invention is to provide a die-casting device for preventing shrinkage porosity of automotive aluminum alloy parts to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A die-casting device for preventing shrinkage porosity of automotive aluminum alloy parts, including a die-casting equipment main body. The die-casting equipment main body includes a feeding tank and a die-casting assembly. A support platform is installed at the bottom of the feeding tank and the die-casting assembly. A water tank and a controller are installed on the side of the support platform. A quantitative feeding assembly is installed between the feeding tank and the die-casting assembly. Two groups of detection components are installed on the die-casting assembly. The quantitative feeding assembly can limit the flow rate of the molten metal, and the detection components can detect the mold.

[0006] Further, a casting block and a concave mold are installed above the support platform. The concave mold is installed inside the casting block. A cooling circuit is installed between the casting block and the concave mold. The cooling circuit spirals around the concave mold. The water inlet and outlet of the cooling circuit are respectively connected to the water tank. The water tank is connected to the water inlet of the cooling circuit through a water pump.

[0007] Further, the die-casting assembly includes a support frame, a mounting frame, and multiple groups of cylinders. The support frame is installed above the casting block. Multiple groups of cylinders are installed above the support frame. The multiple groups of cylinders are respectively equidistantly installed above the support frame. One group of detection components and multiple groups of support rods are installed below the support frame. The multiple groups of support rods cooperate with the multiple groups of cylinders. Limiting grooves are respectively opened on the opposite sides of the support rods. A support rod is installed between the support frames. The support rod is slidably connected to the limiting groove. The output end of the cylinder is connected to the support rod through the support rod. The mounting frame is installed between the two support rods through bearings.

[0008] Further, multiple groups of limiting rings are respectively installed on the opposite sides of the two groups of support rods. Sliders are respectively installed on both sides of the mounting frame. A sliding groove is formed on the limiting ring, and the sliding groove is matched with the slider;

[0009] When the mounting frame rotates 180 degrees: one end of the sliding groove will limit the position of the slider;

[0010] A mounting block is installed between the mounting frames. Another group of detection components is installed on one side surface of the mounting block. A convex mold is installed on the other side surface of the mounting block. The convex mold is matched with the concave mold. One group of the detection components is matched with the concave mold, and the other group of the detection components is matched with the convex mold.

[0011] Further, a flipping motor is installed on the side surface of one group of support rods, and the output end of the flipping motor is connected to the mounting frame.

[0012] Further, the detection component includes a fixed block. An acoustic wave transmitter and multiple groups of acoustic wave receivers are installed on the fixed block. The acoustic wave generator and the acoustic wave receivers are respectively installed inside the fixed block in an embedded manner. The fixed block is matched with the concave mold.

[0013] Further, the quantitative feeding component includes a driving component and a feeding pipe. The driving component is installed at the bottom of the feeding pipe. A driving ring is installed outside the feeding pipe through a bearing. The outer ring of the driving ring is connected to the driving component. A flow sensor is installed at one end of the feeding pipe close to the injection tank. The flow sensor is connected to the controller. Multiple groups of connecting rods are installed inside the feeding pipe. A limiting rod is installed between the connecting rods. A limiting magnet is installed at the end of the limiting rod away from the injection tank. A pushing component is installed inside the feeding pipe. The pushing component is matched with the driving ring.

[0014] Further, multiple groups of positive magnets and multiple groups of negative magnets are arranged on the inner circumference of the driving ring. The multiple groups of positive magnets and the multiple groups of negative magnets are respectively installed inside the driving ring in an alternating manner. Multiple groups of positive magnets and multiple groups of negative magnets are also arranged on the outer circumference of the pushing component. The positive magnets and the negative magnets on the pushing component are also installed inside the pushing component in an alternating manner.

[0015] Further, the pushing component includes a pushing plate. The outer circumference of the pushing plate is matched with the inner circumference of the driving ring. A neodymium iron boron magnet ring is arranged on the inner circumference of the pushing plate. Neodymium iron boron magnet plates are installed between the neodymium iron boron magnet rings. The inner wall of the neodymium iron boron magnet ring and the outer wall of the neodymium iron boron magnet plate attract each other. The side surface of the neodymium iron boron magnet plate is matched with the limiting magnet.

[0016] Further, the driving component includes a driving motor and a lead screw. The fixed end of the driving motor is installed between the die-casting block and the concave mold. The output end of the driving motor is connected to the lead screw, and the lead screw and the outer part of the driving ring are respectively provided with mutually matching threads.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the device is in use, two different detection components can respectively detect the concave mold and the convex mold, thereby ensuring the integrity of the mold after each die-casting and preventing the finished product from being incomplete due to mold damage.

[0019] When the concave mold or the convex mold is damaged, the device can quickly replace the concave mold and the convex mold. When replacing concave molds and convex molds of different shapes, the detection components need to be replaced together, so that the detection components can always match the concave mold and the convex mold.

[0020] 2. Through the quantitative feeding component of the device, the molten metal supplied by the feeding tank to the die-casting component can be limited, preventing the molten metal entering the die-casting component from being excessive, resulting in some areas of the finished product being too thick or too thin. Therefore, through the quantitative feeding component, it can be ensured that the molten metal required for each die-casting meets the best standard.

[0021] 3. When injecting molten metal into the concave mold, the pushing component can push the molten metal in the feeding pipe. Specifically, in use, the driving ring is driven by the driving component to move on the feeding pipe. Since the driving ring cooperates with the pushing plate, the pushing plate can be driven to push the molten metal in the feeding pipe. During the pushing process, it can also prevent the molten metal from remaining on the inner wall of the feeding pipe and can also block the flow of the molten metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an isometric structural view of the present invention;

[0023] Figure 2 is an isometric partial structural view of the present invention;

[0024] Figure 3 is a structural view of the driving component and the driving ring of the present invention;

[0025] Figure 4 is a side structural view of the present invention;

[0026] Figure 5 is a structural view of the mounting rack and a set of detection components of the present invention;

[0027] Figure 6 is a split structural view of the quantitative feeding component of the present invention;

[0028] Figure 7 Structural schematic diagram of the support rod and the support bar of the present invention;

[0029] Figure 8 Structural schematic diagram of the material pushing assembly of the present invention.

[0030] In the figure: 1. Main body of die-casting equipment; 11. Injection tank; 12. Support platform; 121. Casting block; 122. Concave die; 13. Water tank; 14. Controller; 2. Die-casting assembly; 21. Support frame; 211. Support rod; 2111. Limit groove; 22. Mounting frame; 221. Convex die; 23. Cylinder; 24. Support bar; 241. Limit ring; 25. Tipping motor; 3. Quantitative injection assembly; 31. Feeding pipe; 311. Connecting rod; 312. Limit rod; 313. Limiting magnet; 32. Driving ring; 33. Flow sensor; 4. Detection assembly; 41. Fixed block; 411. Sound wave emitter; 412. Sound wave receiver; 5. Driving assembly; 51. Driving motor; 52. Lead screw; 6. Material pushing assembly; 61. Pushing plate; 62. Neodymium iron boron magnet ring; 63. Neodymium iron boron magnet plate. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: As Figures 1-8 shown, the present invention provides a technical solution for an anti-shrinkage die-casting device for automotive aluminum alloy parts, including a die-casting equipment main body 1. The die-casting equipment main body 1 includes an injection tank 11 and a die-casting assembly 2. A support platform 12 is installed at the bottom of the injection tank 11 and the die-casting assembly 2. A water tank 13 and a controller 14 are installed on the side of the support platform 12. A quantitative injection assembly 3 is installed between the injection tank 11 and the die-casting assembly 2. Two groups of detection assemblies 4 are installed on the die-casting assembly 2. The quantitative injection assembly 3 can limit the flow rate of the molten metal, and the detection assembly 4 can detect the die.

[0033] When the device is in use, first, metal liquid needs to be supplied into the charging tank 11. The charging tank 11 of this device can continuously heat the metal liquid to maintain the state of the metal liquid, ensuring that the metal liquid supplied when the charging tank 11 injects material into the die-casting assembly 2 is not in a semi-solidified state. At the same time, when the charging tank 11 injects material into the die-casting assembly 2, according to the size of the mold, the quantitative feeding assembly 3 is used to determine the metal liquid injected into the die-casting assembly 2, preventing too much metal liquid from being injected and causing the mold to be full. At the same time, after die-casting and long-term use, cracks will occur in the mold. However, because the existing die-casting equipment does not have a detection function, it can only be known whether the mold is defective when the finished product is produced. The detection component 4 of this device can detect the mold of this device, so that this device can detect the mold after each die-casting to ensure the integrity of the mold.

[0034] As Figures 1-3 shown, in this embodiment, specifically, a die-casting block 121 and a concave mold 122 are installed above the support platform 12. The concave mold 122 is installed inside the die-casting block 121. A cooling circuit is installed between the die-casting block 121 and the concave mold 122. The cooling circuit spirals around the concave mold 122. The water inlet and outlet of the cooling circuit are respectively connected to the water tank 13. The water tank 13 is connected to the water inlet of the cooling circuit through a water pump.

[0035] Thus, when the device forms a workpiece, the cooling circuit of the device can quickly cool the high-temperature metal melt. The cooling circuit can absorb the heat of the metal melt, thereby helping the workpiece to form faster. Through the water tank 13, the liquid in the cooling circuit can be circulated, and thus the temperature of the liquid in the cooling circuit can be maintained all the time, preventing the liquid temperature from being too high and causing the forming speed to slow down.

[0036] As Figures 1-4 shown, in this embodiment, specifically, the die-casting assembly 2 includes a support frame 21, a mounting frame 22, and multiple groups of cylinders 23. The support frame 21 is installed above the die-casting block 121. Multiple groups of cylinders 23 are installed above the support frame 21. Multiple groups of the cylinders 23 are respectively equidistantly installed above the support frame 21. A group of detection components 4 and multiple groups of support rods 211 are installed under the support frame 21. Multiple groups of the support rods 211 cooperate with multiple groups of the cylinders 23. Limiting grooves 2111 are respectively opened on the opposite sides of the support rods 211. A support rod 24 is installed between the support frames 21. The support rod 24 is slidably connected to the limiting grooves 2111. The output end of the cylinder 23 is connected to the support rod 24 through the support rod 211. The mounting frame 22 is installed between two groups of support rods 24 through bearings.

[0037] When the die-casting assembly 2 of the device is in use, it can perform die-casting forming on workpieces. Specifically, during use, the die-casting assembly 2 is mainly supported by the support frame 21 and the mounting frame 22. Multiple cylinders 23 can push the support rods 24 to move between the support frames 21. Since the mounting frame 22 is installed between the two support rods 24, when the support rods 24 move, the mounting frame 22 will also move up or down. At the same time, because both ends of the mounting frame 22 are connected to the support rods 24 through bearings, the mounting frame 22 can also rotate between the two support rods 24. When the mounting frame 22 rotates, it can drive the devices on the mounting frame 22 to rotate, thus facilitating the completion of the die-casting process and inspection.

[0038] As Figure 5 shown, in this embodiment, specifically, multiple limit rings 241 are respectively installed on the opposite sides of the two support rods 24. Sliders are respectively installed on both sides of the mounting frame 22. A chute is opened on the limit ring 241, and the chute is matched with the slider;

[0039] When the mounting frame 22 rotates 180 degrees: one end of the chute will limit the position of the slider;

[0040] A mounting block is installed between the mounting frames 22. Another set of detection components 4 is installed on one side of the mounting block. A convex mold 221 is installed on the other side of the mounting block. The convex mold 221 cooperates with the concave mold 122. One set of the detection components 4 cooperates with the concave mold 122, and the other set of the detection components 4 cooperates with the convex mold 221;

[0041] In order to ensure that when the mounting frame 22 rotates, when the mounting frame 22 rotates forward or flips 180 degrees, the sliders on the mounting frame 22 will be limited by the chutes on the limit rings 241. Therefore, when die-casting a workpiece, only the convex mold 221 needs to be opposite to the concave mold 122, and then die-casting can be carried out on the workpiece. When it is necessary to detect the concave mold 122 and the convex mold 221, just reverse 180 degrees to make the two sets of detection components 4 respectively match the concave mold 122 and the convex mold 221, and then the concave mold 122 and the convex mold 221 can be detected respectively.

[0042] As Figure 1 shown, in this embodiment, specifically, a flipping motor 25 is installed on the side of one of the support rods 24. The output end of the flipping motor 25 is connected to the mounting frame 22;

[0043] Therefore, when the flipping motor 25 rotates, it can drive the mounting frame 22 to rotate.

[0044] As Figures 4-5As shown, in this embodiment, specifically, the detection component 4 includes a fixed block 41. An acoustic wave transmitter 411 and multiple groups of acoustic wave receivers 412 are installed on the fixed block 41. The acoustic wave generator and the acoustic wave receivers 412 are respectively installed inside the fixed block 41, and the fixed block 41 is matched with the concave mold 122.

[0045] The two detection components 4 of the device can respectively detect the concave mold 122 and the convex mold 221. The fixed blocks 41 of the two detection components 4 are respectively matched with the concave mold 122 and the convex mold 221. Because the two fixed blocks 41 are respectively matched with the concave mold 122 and the convex mold 221, when the acoustic wave generating component acts on the concave mold 122 or the convex mold 221, the acoustic wave receivers 412 can receive the emitted acoustic waves, and then the obtained values are compared with the complete data through the controller 14, so as to know whether there are defects in the concave mold 122 or the convex mold 221. The complete data of the device is the values measured when the concave mold 122 and the convex mold 221 are intact.

[0046] As Figure 6 shown, in this embodiment, specifically, the quantitative feeding component 3 includes a driving component 5 and a feeding pipe 31. The driving component 5 is installed at the bottom of the feeding pipe 31. A driving ring 32 is installed outside the feeding pipe 31 through a bearing. The outer ring of the driving ring 32 is connected to the driving component 5. A flow sensor 33 is installed at one end of the feeding pipe 31 close to the injection tank 11. The flow sensor 33 is connected to the controller 14. Multiple groups of connecting rods 311 are installed inside the feeding pipe 31. A limiting rod 312 is installed between the connecting rods 311. A limiting magnet 313 is installed at one end of the limiting rod 312 away from the injection tank 11. A pushing component 6 is installed inside the feeding pipe 31. The pushing component 6 is matched with the driving ring 32.

[0047] When the quantitative feeding component 3 of the device is in use, it can limit the material supplied to the concave mold 122. Specifically, when in use, the flow sensor 33 can detect the molten metal supplied from the injection tank 11 to the feeding pipe 31. When the predetermined value is reached, the injection tank 11 will stop supplying the molten metal. At the same time, the pushing component 6 will push the molten metal and supply all the molten metal into the concave mold 122 to prevent some molten metal from remaining on the inner wall of the feeding pipe 31.

[0048] As Figure 6 and Figure 8 shown, in this embodiment, specifically, multiple groups of positive magnets and multiple groups of negative magnets are arranged on the inner circumference of the driving ring 32. The multiple groups of positive magnets and multiple groups of negative magnets are respectively installed alternately inside the driving ring 32. Multiple groups of positive magnets and multiple groups of negative magnets are also arranged on the periphery of the pushing component 6. The positive magnets and negative magnets on the pushing component 6 are also installed alternately inside the pushing component 6.

[0049] Since the inner ring of the driving ring 32 and the periphery of the material pushing component 6 attract each other, when the driving ring 32 moves, it will drive the material pushing component 6 to move in the feeding pipe 31 together, thereby facilitating the pushing of the material and preventing the material from sticking to the inner wall of the feeding pipe 31.

[0050] As Figure 8 shown, in this embodiment, specifically, the material pushing component 6 includes a material pushing plate 61. The periphery of the material pushing plate 61 cooperates with the inner periphery of the driving ring 32. A neodymium iron boron magnet ring 62 is arranged inside the material pushing plate 61. A neodymium iron boron magnet plate 63 is installed between the neodymium iron boron magnet rings 62. The inner wall of the neodymium iron boron magnet ring 62 and the outer wall of the neodymium iron boron magnet plate 63 attract each other. The side surface of the neodymium iron boron magnet plate 63 cooperates with the limiting magnet 313;

[0051] When the driving ring 32 of the device moves, because it cooperates with the material pushing plate 61, it can drive the material pushing plate 61 to move in the feeding pipe 31, thereby pushing the material and at the same time reducing the material remaining on the inner wall of the feeding pipe 31;

[0052] When the material pushing plate 61 moves towards the limiting rod 312, the limiting rod 312 will block the material pushing plate 61. The power provided by the driving ring 32 forces the material pushing plate 61 to separate from the neodymium iron boron magnet plate 63, causing the neodymium iron boron magnet plate 63 to adsorb on the limiting magnet 313. Because the material pushing plate 61 separates from the neodymium iron boron magnet plate 63, the molten metal will flow through the notch of the material pushing plate 61 into the concave mold 122. When the material pushing plate 61 moves towards the concave mold 122, because the attraction between the neodymium iron boron magnet plate 63 and the limiting magnet 313 is less than the attraction between the neodymium iron boron magnet plate 63 and the neodymium iron boron magnet ring 62, the neodymium iron boron magnet ring 62 can attract the neodymium iron boron magnet plate 63, thereby pushing the material and at the same time preventing some materials from remaining on the inner wall of the feeding pipe 31.

[0053] As Figure 3 shown, in this embodiment, specifically, the driving component 5 includes a driving motor 51 and a lead screw 52. The fixed end of the driving motor 51 is installed between the die casting block and the concave mold 122. The output end of the driving motor 51 is connected to the lead screw 52. The lead screw 52 and the outer part of the driving ring 32 are respectively provided with mutually cooperating threads;

[0054] When the driving component 5 of the device is in use, it can drive the driving ring 32 to rotate, so that the driving ring 32 can move on the feeding pipe 31 under the drive of the driving component 5. Specifically, when in use, the driving motor 51 can drive the lead screw 52 to rotate. Since the lead screw 52 and the driving ring 32 are provided with matching threads, when the lead screw 52 rotates, it will drive the driving ring 32 to rotate together, so that the driving ring 32 can move on the lead screw 52, and then the driving ring 32 can move on the feeding pipe 31.

[0055] Working principle: When the device is in use, it is first necessary to supply the molten metal into the injection tank 11. The injection tank 11 of the device can continuously heat the molten metal to maintain the state of the molten metal, ensuring that the molten metal supplied when the injection tank 11 injects into the die-casting component 2 is not in a semi-solidified state. At the same time, when the injection tank 11 injects into the die-casting component 2, it will determine the amount of molten metal injected into the die-casting component 2 through the quantitative injection component 3 according to the size of the mold, preventing too much molten metal from being injected and causing the mold to be full. At the same time, after die-casting and long-term use, cracks will occur in the mold. However, because the existing die-casting equipment does not have a detection function, it can only be known whether the mold is defective when the finished product is produced. The detection component 4 of this device can detect the mold of this device, so that this device can detect the mold after each die-casting to ensure the integrity of the mold.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A shrinkage-proof die-casting device for automotive aluminum alloy parts, comprising a die-casting equipment body (1), characterized in that: The die-casting equipment body (1) comprises a material injection tank (11) and a die-casting component (2); a support platform (12) is installed at the bottom of the material injection tank (11) and the die-casting component (2); a water tank (13) and a controller (14) are installed on the side of the support platform (12); a quantitative material injection component (3) is installed between the material injection tank (11) and the die-casting component (2); two groups of detection components (4) are installed on the die-casting component (2); the quantitative material injection component (3) can limit the flow rate of the molten metal, and the detection component (4) can detect the mold.

2. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 1, characterized in that: A casting block (121) and a concave mold (122) are installed above the support platform (12); the concave mold (122) is installed inside the casting block (121); a cooling circuit is installed between the casting block (121) and the concave mold (122); the cooling circuit is coiled around the concave mold (122); a water inlet and a water outlet of the cooling circuit are respectively connected to a water tank (13); and the water tank (13) is connected to the water inlet of the cooling circuit via a water pump.

3. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 2, characterized in that: The die-casting assembly (2) comprises a support frame (21), a mounting frame (22) and a plurality of groups of cylinders (23); the support frame (21) is mounted above the die-casting block (121); a plurality of groups of cylinders (23) are mounted above the support frame (21); the plurality of groups of cylinders (23) are respectively mounted above the support frame (21) at equal distances; a group of detection components (4) and a plurality of support rods (211) are mounted below the support frame (21); the plurality of groups of support rods (211) are mounted below the support frame (21); 11) cooperate with multiple groups of cylinders (23), the support rods (211) are respectively provided with limiting grooves (2111) on opposite sides, a support rod (24) is installed between the support frames (21), the support rod (24) is slidably connected with the limiting grooves (2111), the output end of the cylinder (23) is connected with the support rod (24) through the support rod (211), and the mounting frame (22) is installed between the two groups of support rods (24) through a bearing.

4. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 3, characterized in that: A plurality of limit rings (241) are respectively installed on opposite sides of the two groups of support rods (24), and slide blocks are respectively installed on both sides of the mounting frame (22). The limit rings (241) are provided with slide grooves, and the slide grooves cooperate with the slide blocks; When the mounting frame (22) rotates 180 degrees, one end of the slide groove will limit the position of the slide block; A mounting block is provided between the mounting frames (22); another group of detection components (4) is mounted on one side of the mounting block; a male mold (221) is mounted on the other side of the mounting block; the male mold (221) cooperates with the female mold (122); one group of detection components (4) cooperates with the female mold (122), and the other group of detection components (4) cooperates with the male mold (221).

5. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 4, characterized in that: A turning motor (25) is installed on the side of a group of the support rods (24), and the output end of the turning motor (25) is connected to the mounting frame (22).

6. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 5, characterized in that: The detection assembly (4) comprises a fixed block (41), on which a sound wave transmitter (411) and a plurality of groups of sound wave receivers (412) are installed. The sound wave generator and the sound wave receivers (412) are respectively embedded in the fixed block (41), and the fixed block (41) cooperates with the concave mold (122).

7. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 6, characterized in that: The quantitative injection assembly (3) comprises a driving assembly (5) and a feeding pipe (31). The driving assembly (5) is installed at the bottom of the feeding pipe (31). A driving ring (32) is installed on the outside of the feeding pipe (31) through a bearing. The outer ring of the driving ring (32) is connected to the driving assembly (5). A flow sensor (33) is installed at one end of the feeding pipe (31) close to the injection tank (11). The flow sensor (33) is connected to the controller (14). Multiple groups of connecting rods (311) are installed inside the feeding pipe (31). Limiting rods (312) are installed between the connecting rods (311). A limiting magnet (313) is installed at one end of the limiting rod (312) away from the injection tank (11). A pushing assembly (6) is installed in the feeding pipe (31). The pushing assembly (6) cooperates with the driving ring (32).

8. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 7, characterized in that: The inner periphery of the driving ring (32) is provided with a plurality of groups of positive pole magnets and a plurality of groups of negative pole magnets, and the plurality of groups of positive pole magnets and the plurality of groups of negative pole magnets are respectively installed in an alternating manner in the driving ring (32). The outer periphery of the pushing component (6) is also provided with a plurality of groups of positive pole magnets and a plurality of groups of negative pole magnets, and the positive pole magnets and the negative pole magnets on the pushing component (6) are also installed in an alternating manner in the pushing component (6).

9. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 8, characterized in that: The pusher assembly (6) includes a pusher plate (61), the outer periphery of the pusher plate (61) cooperates with the inner periphery of the drive ring (32), the inner periphery of the pusher plate (61) is provided with a neodymium iron boron magnet ring (62), and a neodymium iron boron magnet plate (63) is installed between the neodymium iron boron magnet ring (62), the inner wall of the neodymium iron boron magnet ring (62) and the outer wall of the neodymium iron boron magnet plate (63) attract each other, and the side surface of the neodymium iron boron magnet plate (63) cooperates with the limiting magnet (313).

10. The shrinkage-proof die-casting device for automotive aluminum alloy parts according to claim 9, characterized in that: The driving assembly (5) comprises a driving motor (51) and a screw rod (52); the fixed end of the driving motor (51) is installed between the die-casting block and the concave mold (122); the output end of the driving motor (51) is connected to the screw rod (52); and the screw rod (52) and the driving ring (32) are respectively provided with mutually matching threads on their exteriors.

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