Anti-shrinkage die casting device for automobile aluminum alloy parts
By introducing detection components, quantitative injection components, and cooling circuits into the die-casting device, the problems of insufficient mold cleanliness and gas discharge were solved, achieving high-quality forming of aluminum alloy parts and preventing surface defects and shrinkage porosity.
Patent Information
- Application Number
- CN202510368689.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2045-03-27
AI Technical Summary
Existing die-casting equipment fails to meet standards for mold cleanliness and gas venting when producing automotive aluminum alloy parts, resulting in surface defects or shrinkage issues after the aluminum alloy parts are formed.
A die-casting device for preventing shrinkage and loosening of automotive aluminum alloy parts was designed. It is equipped with a detection component to detect the mold, a quantitative injection component to control the flow rate of molten metal and to quickly cool it through a cooling circuit, and a push component to prevent molten metal residue, thus ensuring the integrity of the mold and the quality of the finished product.
The mold integrity is ensured by the detection component, the flow rate of molten metal is controlled by the quantitative injection component, the cooling circuit cools down the temperature quickly, and the ejector component prevents residue. This improves the forming quality and consistency of aluminum alloy parts and prevents surface defects and shrinkage porosity.
Smart Images
Figure CN120170043B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aluminum alloy die casting technology, specifically to an anti-shrinkage die casting device for automotive aluminum alloy parts. Background Technology
[0002] Die casting equipment is also called die casting machine. Die casting machine is a machine used for pressure casting. It includes two types: hot pressure chamber and cold pressure chamber. Later, it was divided into two types: vertical and horizontal. Under pressure, the die casting machine injects molten metal into the mold to cool and solidify. After the mold is opened, a solid metal casting can be obtained.
[0003] In the process of producing automotive aluminum alloy parts, existing die-casting equipment usually requires cleaning and venting of the mold. However, after cleaning and venting, existing die-casting equipment usually does not have subsequent testing functions. Sometimes the cleanliness of the mold and the gas venting may not meet the standards, resulting in defects or shrinkage on the surface of the aluminum alloy parts after forming. Summary of the Invention
[0004] The purpose of this invention is to provide a die-casting device for preventing shrinkage and loosening of automotive aluminum alloy parts, so as to solve the problems mentioned in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a die-casting device for preventing shrinkage of automotive aluminum alloy parts, comprising a die-casting equipment body, the die-casting equipment body including an injection tank and a die-casting assembly, a support platform installed at the bottom of the injection tank and the die-casting assembly, a water tank and a controller installed on the side of the support platform, a quantitative injection assembly installed between the injection tank and the die-casting assembly, and two sets of detection components installed on the die-casting assembly, the quantitative injection assembly limiting the flow rate of molten metal, and the detection components detecting the mold.
[0006] Furthermore, 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 is coiled around the concave mold. The inlet and outlet of the cooling circuit are respectively connected to a water tank. The water tank is connected to the inlet of the cooling circuit through a water pump.
[0007] Furthermore, the die-casting assembly includes a support frame, a mounting frame, and multiple sets of cylinders. The support frame is mounted above the casting block, and multiple sets of cylinders are mounted on the support frame. The multiple sets of cylinders are equidistantly mounted above the support frame. A detection component and multiple sets of support rods are mounted below the support frame. The multiple sets of support rods cooperate with the multiple sets of cylinders. Limiting grooves are opened on opposite sides of the support rods. Support rods are installed between the support frames, and the support rods are slidably connected within the limiting grooves. The output end of the cylinder is connected to the support rods via the support rods. The mounting frame is mounted between the two sets of support rods via bearings.
[0008] Furthermore, multiple sets of limiting rings are respectively installed on the opposite side of the two sets of support rods, and sliders are respectively installed on both sides of the mounting frame. The limiting rings are provided with sliding grooves, and the sliding grooves cooperate with the sliders.
[0009] When the mounting bracket rotates 180 degrees, one end of the slide groove will limit the position of the slider.
[0010] The mounting blocks are installed between the mounting brackets. One side of the mounting block is equipped with another set of detection components, and the other side of the mounting block is equipped with a convex mold. The convex mold and the concave mold cooperate with each other. One set of detection components cooperates with the concave mold, and the other set of detection components cooperates with the convex mold.
[0011] Furthermore, a set of the support rods is equipped with a tilting motor on its side, and the output end of the tilting motor is connected to the mounting bracket.
[0012] Furthermore, the detection component includes a fixing block, on which a sound wave transmitter and multiple sets of sound wave receivers are mounted. The sound wave transmitter and sound wave receivers are respectively embedded in the fixing block, and the fixing block cooperates with the concave mold.
[0013] Furthermore, the quantitative injection assembly includes a drive assembly and a feed tube. The drive assembly is installed at the bottom of the feed tube. A drive ring is installed on the outside of the feed tube via a bearing. The outer ring of the drive ring is connected to the drive assembly. A flow sensor is installed at the end of the feed tube near the injection tank. The flow sensor is connected to a controller. Multiple sets of connecting rods are installed inside the feed tube. Limiting rods are installed between the connecting rods. A limiting magnet is installed at the end of the limiting rod away from the injection tank. A pushing assembly is installed inside the feed tube. The pushing assembly cooperates with the drive ring.
[0014] Furthermore, the inner circumference of the drive ring is provided with multiple sets of positive magnets and multiple sets of negative magnets, which are respectively staggered and installed inside the drive ring. Similarly, the outer circumference of the pusher assembly is provided with multiple sets of positive magnets and multiple sets of negative magnets, and the positive magnets and negative magnets on the pusher assembly are also staggered and installed inside the pusher assembly.
[0015] Furthermore, the pushing assembly includes a pushing plate, the periphery of which cooperates with the inner circumference of the driving ring, a neodymium iron boron magnet ring is provided on the inner circumference of the pushing plate, a neodymium iron boron magnet plate is installed between the neodymium iron boron magnet rings, the inner wall of the neodymium iron boron magnet rings and the outer wall of the neodymium iron boron magnet plate attract each other, and the side of the neodymium iron boron magnet plate cooperates with a limiting magnet.
[0016] Furthermore, the drive assembly includes a drive motor and a lead screw. The fixed end of the drive motor is installed between the die-casting block and the die cavity, and the output end of the drive motor is connected to the lead screw. The lead screw and the drive ring are respectively provided with mutually cooperating threads.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] 1. When in use, the device can detect the concave mold and the convex mold separately through two different detection components, thereby ensuring the integrity of the mold after each die casting and preventing the finished product from being defective due to mold damage.
[0019] When a die or punch is damaged, the device can quickly replace the die or punch. When replacing a die or punch of a different shape, the detection component needs to be replaced together so that the detection component can always match the die or punch.
[0020] 2. The quantitative injection component of this device can limit the amount of molten metal supplied from the injection tank to the die-casting assembly, preventing excessive molten metal from entering the die-casting assembly and causing some areas of the finished product to be too thick or too thin. In this way, the quantitative injection component can ensure that the molten metal required for each die-casting meets the optimal standard.
[0021] 3. When injecting molten metal into the concave die, the pusher assembly can push the molten metal in the feed tube. In actual use, the drive ring can move on the feed tube under the drive assembly. Because the drive ring cooperates with the pusher plate, it can drive the pusher plate to push the molten metal in the feed tube. During the pushing process, it can also prevent the molten metal from remaining on the inner wall of the feed tube, and at the same time, it can also block the flow of molten metal. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the isometric structure of the present invention;
[0023] Figure 2 This is a partial isometric structural diagram of the present invention;
[0024] Figure 3 This is a schematic diagram of the drive component and drive ring structure of the present invention;
[0025] Figure 4 This is a schematic diagram of the side structure of the present invention;
[0026] Figure 5 This is a schematic diagram of the mounting bracket and a set of detection components of the present invention;
[0027] Figure 6 This is a schematic diagram of the disassembled structure of the quantitative injection component of the present invention;
[0028] Figure 7 This is a schematic diagram of the support rod and strut structure of the present invention;
[0029] Figure 8 This is a schematic diagram of the material pushing component structure of the present invention.
[0030] In the diagram: 1. Main body of die-casting equipment; 11. Injection tank; 12. Support platform; 121. Casting block; 122. Concave mold; 13. Water tank; 14. Controller; 2. Die-casting components; 21. Support frame; 211. Support rod; 2111. Limiting groove; 22. Mounting frame; 221. Punch mold; 23. Cylinder; 24. Support rod; 241. Limiting ring; 25. Tilting motor; 3. Quantitative injection component; 31. Feeding pipe; 311. Connecting rod; 312. Limiting rod; 313. Limiting magnet; 32. Drive ring; 33. Flow sensor; 4. Detection component; 41. Fixing block; 411. Acoustic wave transmitter; 412. Acoustic wave receiver; 5. Drive component; 51. Drive motor; 52. Lead screw; 6. Pushing component; 61. Pushing plate; 62. Neodymium iron boron magnet ring; 63. Neodymium iron boron magnet plate. Detailed Implementation
[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Example: Figures 1-8 As shown, the present invention provides a technical solution for a die-casting device for preventing shrinkage of automotive aluminum alloy parts, including a die-casting equipment body 1. The die-casting equipment 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 sets of detection components 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 components 4 can detect the mold.
[0033] When using this device, molten metal is first supplied to the injection tank 11. The injection tank 11 continuously heats the molten metal, maintaining its state and ensuring that the molten metal supplied to the die-casting component 2 is not in a semi-solid state. Simultaneously, when the injection tank 11 injects metal into the die-casting component 2, the amount of molten metal injected is determined by the metering injection component 3 based on the size of the mold, preventing the mold from becoming overloaded due to excessive molten metal injection. Furthermore, after prolonged use following casting, cracks may appear in the mold. However, existing die-casting equipment lacks detection capabilities, meaning defects can only be detected upon finished product output. The detection component 4 of this device can inspect the mold after each casting cycle, ensuring its integrity.
[0034] like Figure 1-3 As shown, in this embodiment, specifically, 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. The inlet and outlet of the cooling circuit are respectively connected to a water tank 13. The water tank 13 is connected to the inlet of the cooling circuit through a water pump.
[0035] Therefore, when the device is forming a workpiece, the cooling circuit of the device can quickly cool down the high-temperature molten metal. The cooling circuit can absorb the heat of the molten metal, thereby helping the workpiece to be formed faster. The water tank 13 can circulate the liquid in the cooling circuit, thereby maintaining the temperature of the liquid in the cooling circuit and preventing the liquid temperature from being too high, which would slow down the forming speed.
[0036] like Figure 1-4 As shown in this embodiment, specifically, the die-casting assembly 2 includes a support frame 21, a mounting frame 22, and multiple sets of cylinders 23. The support frame 21 is installed above the casting block 121. Multiple sets of cylinders 23 are installed above the support frame 21, and the multiple sets of cylinders 23 are equidistantly installed above the support frame 21. A detection assembly 4 and multiple sets of support rods 211 are installed below the support frame 21. The multiple sets of support rods 211 cooperate with the multiple sets of cylinders 23. Limiting grooves 2111 are respectively opened on opposite sides of the support rods 211. Support rods 24 are installed between the support frames 21. The support rods 24 are slidably connected to the limiting grooves 2111. The output end of the cylinder 23 is connected to the support rod 24 through the support rods 211. The mounting frame 22 is installed between the two sets of support rods 24 through bearings.
[0037] When in use, the die-casting component 2 of this device can die-cast workpieces. Specifically, the die-casting component 2 is mainly supported by the support frame 21 and the mounting frame 22. Multiple sets of 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 sets of support rods 24, when the support rods 24 move, they will also drive the mounting frame 22 to rise or fall. At the same time, since the two 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 sets of support rods 24. When the mounting frame 22 rotates, it can drive the device on the mounting frame 22 to rotate, thereby facilitating the completion of the die-casting process and inspection.
[0038] like Figure 5 As shown in this embodiment, specifically, multiple sets of limiting rings 241 are respectively installed on the opposite side of the two sets of support rods 24, and sliders are respectively installed on both sides of the mounting frame 22. The limiting rings 241 are provided with sliding grooves, and the sliding grooves cooperate with the sliders.
[0039] When the mounting bracket 22 rotates 180 degrees: one end of the slide groove will limit the position of the slider;
[0040] The mounting blocks are installed between the mounting brackets 22. Another set of detection components 4 is installed on one side of the mounting block, and a convex mold 221 is installed on the other side of the mounting block. The convex mold 221 and the concave mold 122 cooperate with each other. One set of detection components 4 cooperates with the concave mold 122, and the other set of detection components 4 cooperates with the convex mold 221.
[0041] In order to ensure that when the mounting bracket 22 rotates, when the mounting bracket 22 rotates clockwise or flips 180 degrees, the slider on the mounting bracket 22 will be limited by the groove on the limiting ring 241. Therefore, when it is necessary to die-cast the workpiece, it is only necessary to align the punch 221 with the die 122. When it is necessary to inspect the die 122 and the punch 221, it is only necessary to reverse 180 degrees so that the two sets of detection components 4 are respectively matched with the die 122 and the punch 221, so that the die 122 and the punch 221 can be inspected separately.
[0042] like Figure 1 As shown in this embodiment, specifically, a set of support rods 24 are equipped with a flip motor 25 on their side, and the output end of the flip motor 25 is connected to the mounting bracket 22;
[0043] Therefore, when the flip motor 25 rotates, it can drive the mounting bracket 22 to rotate.
[0044] like Figure 4-5As shown, in this embodiment, specifically, the detection component 4 includes a fixing block 41, on which a sound wave transmitter 411 and multiple sets of sound wave receivers 412 are installed. The sound wave transmitter 411 and the sound wave receivers 412 are respectively embedded in the fixing block 41, and the fixing block 41 cooperates with the concave mold 122.
[0045] The two sets of detection components 4 of the device can detect the concave mold 122 and the convex mold 221 respectively. The fixing blocks 41 of the two sets of detection components 4 are respectively matched with the concave mold 122 and the convex mold 221. Because the two sets of fixing blocks 41 are respectively matched with the concave mold 122 and the convex mold 221, when the sound wave generating component acts on the concave mold 122 or the convex mold 221, the sound wave receiver 412 can receive the emitted sound wave. Then, the controller 14 compares the obtained value with the complete data, and thus it can be determined whether the concave mold 122 or the convex mold 221 has a defect. The complete data of the device is the value tested when the concave mold 122 and the convex mold 221 are intact.
[0046] like Figure 6 As shown in this embodiment, specifically, the quantitative injection component 3 includes a drive component 5 and a feeding pipe 31. The drive component 5 is installed at the bottom of the feeding pipe 31. A drive ring 32 is installed on the outside of the feeding pipe 31 through a bearing. The outer ring of the drive ring 32 is connected to the drive component 5. A flow sensor 33 is installed at the end of the feeding pipe 31 near the injection tank 11. The flow sensor 33 is connected to the controller 14. Multiple sets 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 the 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 cooperates with the drive ring 32.
[0047] When in use, the metering injection component 3 of the device can limit the amount of material supplied to the die cavity 122. Specifically, the flow sensor 33 can detect the amount of molten metal supplied by the injection tank 11 to the feed pipe 31. When the predetermined value is reached, the injection tank 11 will stop supplying molten metal, and at the same time the pusher component 6 will push the molten metal to supply all the molten metal into the die cavity 122, preventing some molten metal from remaining on the inner wall of the feed pipe 31.
[0048] like Figure 6 and Figure 8As shown in this embodiment, specifically, the inner circumference of the drive ring 32 is provided with multiple sets of positive magnets and multiple sets of negative magnets, and the multiple sets of positive magnets and multiple sets of negative magnets are respectively alternately installed in the drive ring 32. The outer circumference of the pusher assembly 6 is also provided with multiple sets of positive magnets and multiple sets of negative magnets, and the positive magnets and negative magnets on the pusher assembly 6 are also alternately installed in the pusher assembly 6.
[0049] Because the inner ring of the drive ring 32 attracts the outer ring of the pusher assembly 6, when the drive ring 32 moves, it will drive the pusher assembly 6 to move together in the feed pipe 31, thereby facilitating the pushing of materials and preventing materials from sticking to the inner wall of the feed pipe 31.
[0050] like Figure 8 As shown, in this embodiment, specifically, the pushing component 6 includes a pushing plate 61. The outer periphery of the pushing plate 61 cooperates with the inner periphery of the driving ring 32. A neodymium iron boron magnet ring 62 is provided on the inner periphery of the 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 of the neodymium iron boron magnet plate 63 cooperates with the limiting magnet 313.
[0051] When the drive ring 32 of the device moves, it cooperates with the pusher plate 61, thereby driving the pusher plate 61 to move within the feed pipe 31, thus pushing the material and reducing the material remaining on the inner wall of the feed pipe 31.
[0052] When the pusher plate 61 moves toward the limiting rod 312, the limiting rod 312 will block the pusher plate 61. The power provided by the drive ring 32 forces the pusher plate 61 to separate from the neodymium iron boron magnet plate 63, so that the neodymium iron boron magnet plate 63 is attracted to the limiting magnet 313. Because the pusher plate 61 is separated from the neodymium iron boron magnet plate 63, the molten metal will flow into the cavity mold 122 through the notch of the pusher plate 61. When the pusher plate 61 moves toward the cavity 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 preventing some material from remaining on the inner wall of the feed pipe 31.
[0053] like Figure 3 As shown, in this embodiment, specifically, the drive assembly 5 includes a drive motor 51 and a lead screw 52. The fixed end of the drive motor 51 is installed between the die-casting block and the concave mold 122. The output end of the drive motor 51 is connected to the lead screw 52. The lead screw 52 and the drive ring 32 are respectively provided with mutually cooperating threads.
[0054] When in use, the drive assembly 5 of the device can drive the drive ring 32 to rotate, so that the drive ring 32 can move on the feed pipe 31 under the drive of the drive assembly 5. In specific use, the drive motor 51 can drive the lead screw 52 to rotate. Since the lead screw 52 and the drive ring 32 are provided with matching threads, when the lead screw 52 rotates, it will drive the drive ring 32 to rotate together, so that the drive ring 32 can move on the lead screw 52, and thus the drive ring 32 can move on the feed pipe 31.
[0055] Working Principle: When using this device, molten metal is first supplied to the injection tank 11. The injection tank 11 continuously heats the molten metal, maintaining its state and ensuring that the molten metal supplied to the die-casting component 2 is not in a semi-solid state. Simultaneously, when injecting molten metal into the die-casting component 2, the injection tank 11, based on the mold size, uses the metering injection component 3 to determine the amount of molten metal injected, preventing excessive molten metal from overloading the mold. Furthermore, after prolonged use following casting, cracks may appear in the mold. However, existing die-casting equipment lacks detection capabilities, meaning defects can only be detected upon finished product output. The detection component 4 of this device can inspect the mold after each casting cycle, ensuring its integrity.
[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An anti-shrinkage die casting device for an automobile aluminum alloy part, comprising a die casting device main body (1), characterized in that: Said die casting equipment body (1) includes injection tank (11) and die casting assembly (2), injection tank (11) and die casting assembly (2) bottom installation support platform (12), the side of support platform (12) is installed water tank (13) and controller (14), injection tank (11) and die casting assembly (2) between installation quantitative injection assembly (3), two sets of detection assembly (4) are installed on die casting assembly (2), quantitative injection assembly (3) can limit the flow of metal melt, detection assembly (4) can detect the mold; Two sets of support rods (24) are respectively installed on one side of a plurality of limiting rings (241), and sliding blocks are respectively installed on both sides of the mounting bracket (22). Slots are formed in the limiting rings (241), and the slots are matched with the sliding blocks. When the mounting bracket (22) rotates by 180 degrees, one end of the slot limits the position of the sliding block. A mounting block is installed between the mounting brackets (22), one side of the mounting block is installed with another set of detection assemblies (4), and the other side of the mounting block is installed with a convex mold (221). The convex mold (221) is matched with the concave mold (122), one set of detection assemblies (4) is matched with the concave mold (122), and the other set of detection assemblies (4) is matched with the convex mold (221). One side of one set of support rods (24) is installed with a turnover motor (25), and the output end of the turnover motor (25) is connected with the mounting bracket (22). The quantitative injection assembly (3) includes a drive assembly (5) and a feeding pipe (31). The drive assembly (5) is installed at the bottom of the feeding pipe (31). The outer side of the feeding pipe (31) is installed with a drive ring (32) through a bearing. The outer ring of the drive ring (32) is connected with the drive assembly (5). The end of the feeding pipe (31) close to the injection tank (11) is installed with a flow sensor (33), and the flow sensor (33) is connected with the controller (14). A plurality of connecting rods (311) are installed in the feeding pipe (31). Limiting rods (312) are installed between the connecting rods (311). Limiting magnets (313) are installed at the end of the limiting rods (312) away from the injection tank (11). A pushing assembly (6) is installed in the feeding pipe (31), and the pushing assembly (6) is matched with the drive ring (32). A plurality of positive magnets and a plurality of negative magnets are arranged in the drive ring (32). The plurality of positive magnets and the plurality of negative magnets are respectively installed in the drive ring (32) in a staggered manner. A plurality of positive magnets and a plurality of negative magnets are also arranged on the periphery of the pushing assembly (6). The positive magnets and the negative magnets on the pushing assembly (6) are also installed in the pushing assembly (6) in a staggered manner.
2. The anti-shrinkage die casting device for an automobile aluminum alloy part according to claim 1, characterized in that: The support platform (12) is provided with a casting block (121) and a concave mold (122), the concave mold (122) is arranged in the casting block (121), a cooling circuit is arranged between the casting block (121) and the concave mold (122), the cooling circuit is coiled around the concave mold (122), the water inlet and the water outlet of the cooling circuit are connected with a water tank (13), and the water tank (13) is connected with the water inlet of the cooling circuit through a water pump.
3. The anti-shrinkage die casting device for an automobile aluminum alloy part 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 air cylinders (23), the support frame (21) is arranged above the casting block (121), a plurality of air cylinders (23) are arranged above the support frame (21), the air cylinders (23) are equidistantly arranged above the support frame (21), a detection assembly (4) and a plurality of supporting rods (211) are arranged below the support frame (21), the supporting rods (211) are matched with the air cylinders (23), the supporting rods (211) are provided with limiting grooves (2111) on opposite sides, a supporting rod (24) is arranged between the support frames (21), the supporting rod (24) is slidably connected in the limiting grooves (2111), the air cylinders (23) are connected with the supporting rod (24) through the supporting rods (211), and the mounting frame (22) is arranged between the supporting rods (24) through bearings.
4. The anti-shrinkage die casting device for an automobile aluminum alloy part according to claim 3, characterized in that: The detection assembly (4) comprises a fixed block (41), the fixed block (41) is provided with a sound wave transmitter (411) and a plurality of sound wave receivers (412), the sound wave transmitter (411) and the sound wave receivers (412) are inlaid in the fixed block (41), and the fixed block (41) is matched with the concave mold (122).
5. The anti-shrinkage die casting apparatus for an automobile aluminum alloy member according to claim 4, characterized by: The pushing assembly (6) comprises a pushing plate (61), the pushing plate (61) is matched with the inner periphery of the driving ring (32), the inner periphery of the pushing plate (61) is provided with a neodymium iron boron magnet ring (62), the neodymium iron boron magnet ring (62) is provided with a neodymium iron boron magnet plate (63), the inner wall of the neodymium iron boron magnet ring (62) and the outer wall of the neodymium iron boron magnet plate (63) are attracted to each other, and the side surface of the neodymium iron boron magnet plate (63) is matched with the limiting magnet (313).
6. The anti-shrinkage die casting apparatus for an automobile aluminum alloy part according to claim 5, characterized in that: The driving assembly (5) comprises a driving motor (51) and a lead screw (52), the fixed end of the driving motor (51) is arranged between the die casting block and the concave mold (122), the output end of the driving motor (51) is connected with the lead screw (52), and the outer part of the lead screw (52) and the driving ring (32) are respectively provided with matching threads.
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