Automobile accessory die-casting die

Abstract

The utility model relates to the technical field of automobile part die-casting, in particular to an automobile part die-casting die. The technical problems that after an existing automobile part die-casting die is subjected to die casting for a long time, heat in the die cannot be taken away in time, the defects of shrinkage cavities, hot cracks and the like of castings are caused, and serious quality problems are caused are solved. According to the technical scheme, the automobile part die-casting die comprises a bottom plate, a supporting assembly, a fixed die assembly, a water cooling assembly, an air cooling assembly, a movable die assembly and a pressing assembly; compared with the problems of shrinkage cavities, hot cracks and other defects of castings caused by the fact that heat is difficult to take away in time in the die-casting process of a traditional automobile part die-casting die, a secondary cooling method is adopted in the automobile part die-casting die, cooling liquid is subjected to secondary air cooling, the temperature of circulating cooling liquid is greatly reduced, and therefore the cooling effect is improved, and the service life of the automobile part die-casting die is prolonged. And the situation that the quality of a casting finished product is affected due to deformation of the mold caused by overheat because heat cannot be taken away in time is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting of automobile parts, in particular to a die-casting mold for automobile parts. Background Art

[0002] Auto parts die-casting mold is a kind of mold specially used for manufacturing auto parts. When manufacturing auto parts, molten non-ferrous metal material is injected into the mold, filled into the cavity by pressure, and then cooled and solidified to form the required shape of auto parts. The design and manufacture of auto parts die-casting molds need to consider many factors, such as the shape, size, material, production efficiency, cost, etc. of the parts. At the same time, in order to ensure the quality and precision of die-casting parts, strict quality control and inspection of the mold are also required. During the die-casting process, the mold will expand due to high temperature. The cooling system can effectively control the temperature of the mold and prevent the mold from deformation due to overheating. Existing auto parts die-casting molds are usually cooled by coolant (such as water or special coolant). Long-term die-casting will cause the heat inside the mold to not be taken away in time, resulting in defects such as shrinkage holes and thermal cracks in the castings, causing serious quality problems. Utility Model Content

[0003] In order to overcome the problem that the existing die-casting molds for automotive parts are usually cooled by coolants (such as water or special coolants) during die-casting, long-term die-casting will cause the heat inside the mold to not be taken away in time, resulting in defects such as shrinkage cavities and thermal cracks in the castings, causing serious quality problems.

[0004] The technical scheme of the utility model is: a die-casting mold for automobile parts, comprising a bottom plate, a support component, a fixed mold component, a water cooling component, an air cooling component, a movable mold component and a pressing component; a support component for providing stable support for the operation of the die-casting mold for automobile parts is arranged above the bottom plate, a fixed mold component is arranged above the support component, a water cooling component is arranged on one side of the fixed mold component, an air cooling component for starting secondary cooling to improve the cooling effect after long-term die-casting is arranged on one side of the support component, a movable mold component is arranged above the fixed mold component, and a pressing component is arranged on one side of the movable mold component.

[0005] Preferably, by setting up a support component, stable support can be provided for the operation of the die-casting mold for automotive parts; by setting up a fixed mold component, the shape of the die-casting can be fixed to ensure the stability and accuracy of the mold during the die-casting process; by setting up a water-cooling component, circulating coolant can be used to cool both sides of the mold to prevent defects such as shrinkage holes and thermal cracks in the casting, thereby improving the dimensional accuracy and surface finish of the casting; by setting up an air-cooling component, the coolant can be air-cooled after a long period of die-casting to prevent excessive heat from not being removed in time, resulting in deformation of the mold due to overheating, thereby affecting the quality of the finished casting; by setting up a movable mold component, molten metal can be allowed to enter the mold cavity to form a casting; by setting up a pressing component, the mold can be opened and closed accurately and stably, thereby ensuring the accuracy and quality of automotive parts.

[0006] Preferably, the support assembly includes support columns and support plates; support columns are arranged above the base plate, four groups of support columns are arranged, and support plates are arranged above the support columns. When in use, the four groups of support columns and support plates can provide stable support for the operation of the die-casting mold of automotive parts.

[0007] Preferably, the fixed mold assembly includes a lower mold body and a lower mold plate; the lower mold body is arranged above the support plate, and the lower mold plate is arranged on the inner bottom surface of the lower mold body. When in use, the shape of the die-casting can be fixed by setting the lower mold body and the lower mold plate, thereby ensuring the stability and accuracy of the mold during the die-casting process.

[0008] Preferably, the water cooling component includes a first cooling circulation pipeline, a liquid inlet valve, a coolant storage tank, a liquid extraction valve and a second cooling circulation pipeline; a first cooling circulation pipeline is arranged on one side of the lower mold body, the first cooling circulation pipeline passes through the support plate, a liquid inlet valve is arranged at one end of the first cooling circulation pipeline, a coolant storage tank is arranged below the liquid inlet valve, a liquid extraction valve is arranged on one side of the liquid inlet valve, a second cooling circulation pipeline is arranged above the liquid extraction valve, and the second cooling circulation pipeline passes through the support plate. When in use, during die casting, the liquid extraction valve is started to extract the coolant from the coolant storage tank into the second cooling circulation pipeline, and then enters the first cooling circulation pipeline from the external cooling pipeline, and then the liquid inlet valve is started to enter the coolant storage tank to complete the circulation, which can realize the cooling effect on both sides of the mold, prevent the casting from defects such as shrinkage holes and thermal cracks, and improve the dimensional accuracy and surface finish of the casting.

[0009] Preferably, the air cooling component includes an external cooling pipe, fins, an air conditioner and a fan; an external cooling pipe is arranged at one end of the second cooling circulation pipe, fins are arranged on the outside of the external cooling pipe, and the fins are arranged in multiple groups. The other end of the external cooling pipe is connected to the first cooling circulation pipe, an air conditioner is arranged on one side of the support plate, and a fan is arranged under the air conditioner. The fan is arranged in three groups. When in use, during a long period of die-casting, the heat of the mold is difficult to be taken away in time. After the air conditioner is started to generate cold air, the coolant flows from the second cooling circulation pipe into the external cooling pipe, to the multiple groups of fins and then into the first cooling circulation pipe. The three groups of fans are started to dissipate heat for the multiple groups of fins, take away a large amount of heat in the coolant and reduce the temperature of the coolant, thereby improving the cooling effect and preventing the heat from being too high and not being taken away in time, causing the mold to deform due to overheating, thereby affecting the quality of the finished casting.

[0010] Preferably, the movable mold assembly includes a hydraulic rod, a top plate, an injection hole and an upper mold body; a hydraulic rod is arranged on one side of the first cooling circulation pipeline, four groups of hydraulic rods are arranged, a top plate is arranged above the hydraulic rod, an upper mold body is arranged below the top plate, and an injection hole is opened above the top plate. When in use, the four groups of hydraulic rods are started to drive the upper mold body to move and close with the lower mold body to form a cavity, and the casting liquid is injected into the cavity from the injection hole to die-cast into a finished automotive part.

[0011] Preferably, the pressing assembly includes engaging plum blossom columns and plum blossom grooves; engaging plum blossom columns are provided on one side of the upper mold body, and four groups of engaging plum blossom columns are provided, and plum blossom grooves are provided on the other side of the lower mold body, and four groups of plum blossom grooves are provided. When in use, four groups of engaging plum blossom columns are inserted into four groups of plum blossom grooves during the die-casting process, so that the mold can be opened and closed accurately and stably without deviation, thereby ensuring the precision and quality of automotive accessories.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional die-casting molds for automotive parts, which are difficult to remove heat in time during die-casting, resulting in shrinkage holes, thermal cracks and other defects in the castings, the secondary cooling method is adopted in the die-casting molds for automotive parts. The coolant is cooled by secondary air, which greatly reduces the temperature of the circulating coolant, thereby improving the cooling effect and preventing the mold from being deformed due to overheating due to the inability to remove heat in time, thus affecting the quality of the finished castings;

[0014] 2. After the air conditioner is started to generate cold air, the coolant flows from the second cooling circulation pipe into the external cooling pipe, reaches multiple groups of fins, and then enters the first cooling circulation pipe. The three groups of fans are started to dissipate heat for multiple groups of fins, taking away a large amount of heat in the coolant to reduce the temperature of the coolant, thereby improving the cooling effect and preventing the mold from being deformed due to overheating due to the failure to remove the heat in time, thus affecting the quality of the finished casting;

[0015] 3. Start four sets of hydraulic rods to drive the upper mold body to move and close with the lower mold body to form a cavity, inject the casting liquid into the cavity from the injection hole, and die-cast it into a finished auto part. During the die-casting process, four sets of engaging plum blossom columns are inserted into four sets of plum blossom grooves, which can enable the mold to open and close accurately and stably without offset, thereby ensuring the accuracy and quality of auto parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows a left-view stereoscopic structure diagram of the die-casting mold for automobile parts of the utility model;

[0017] Figure 2 The three-dimensional structure diagram of the supporting assembly and the fixed mold assembly of the automobile parts die-casting mold of the utility model is shown;

[0018] Figure 3 The three-dimensional structure diagram of the water cooling assembly of the automobile parts die-casting mold of the utility model is shown;

[0019] Figure 4 What is shown is a three-dimensional structural schematic diagram of an air-cooling assembly of a die-casting mold for automobile parts of the utility model;

[0020] Figure 5 The following is a bottom-up schematic diagram of the three-dimensional structure of the die-casting mold pressing assembly of the automobile parts of the utility model;

[0021] Figure 6 The following is a bottom-up three-dimensional structural diagram of the movable mold assembly of the automotive parts die-casting mold of the utility model;

[0022] Explanation of the reference numerals: 1. bottom plate; 2. support assembly; 3. fixed mold assembly; 4. water-cooling assembly; 5. air-cooling assembly; 6. movable mold assembly; 7. pressing assembly; 201. support column; 202. support plate; 301. lower mold body; 302. lower mold plate; 401. first cooling circulation pipeline; 402. liquid inlet valve; 403. coolant storage tank; 404. liquid extraction valve; 405. second cooling circulation pipeline; 501. external cooling pipeline; 502. fin; 503. air conditioner; 504. fan; 601. hydraulic rod; 602. top plate; 603. liquid injection hole; 604. upper mold body; 701. engaging plum blossom column; 702. plum blossom groove. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1The utility model provides an embodiment: a die-casting mold for automobile parts, comprising a base plate 1, a support component 2, a fixed mold component 3, a water cooling component 4, an air cooling component 5, a movable mold component 6 and a pressing component 7; a support component 2 for providing stable support for the operation of the die-casting mold for automobile parts is arranged above the base plate 1, a fixed mold component 3 is arranged above the support component 2, a water cooling component 4 is arranged on one side of the fixed mold component 3, an air cooling component 5 for starting secondary cooling after long-term die-casting to improve the cooling effect is arranged on one side of the support component 2, a movable mold component 6 is arranged above the fixed mold component 3, and a pressing component 7 is arranged on one side of the movable mold component 6.

[0025] See also Figure 2 In this embodiment, the support assembly 2 includes a support column 201 and a support plate 202; a support column 201 is arranged above the bottom plate 1, and four groups of support columns 201 are arranged. A support plate 202 is arranged above the support column 201. When in use, the four groups of support columns 201 and the support plate 202 can provide a stable support for the operation of the automotive parts die-casting mold. The fixed mold assembly 3 includes a lower mold body 301 and a lower mold plate 302; a lower mold body 301 is arranged above the support plate 202, and a lower mold plate 302 is arranged on the inner bottom surface of the lower mold body 301. When in use, the shape of the die-casting can be fixed by setting the lower mold body 301 and the lower mold plate 302, thereby ensuring the stability and accuracy of the mold during the die-casting process.

[0026] See also Figure 3 In this embodiment, the water cooling assembly 4 includes a first cooling circulation pipeline 401, a liquid inlet valve 402, a coolant storage tank 403, a liquid extraction valve 404, and a second cooling circulation pipeline 405; a first cooling circulation pipeline 401 is provided on one side of the lower mold body 301, the first cooling circulation pipeline 401 passes through the support plate 202, a liquid inlet valve 402 is provided at one end of the first cooling circulation pipeline 401, a coolant storage tank 403 is provided below the liquid inlet valve 402, a liquid extraction valve 404 is provided on one side of the liquid inlet valve 402, and the liquid extraction valve 404 A second cooling circulation pipe 405 is arranged above the support plate 202, and the second cooling circulation pipe 405 runs through the support plate 202. When in use, during die casting, the liquid extraction valve 404 is started to extract the coolant from the coolant storage tank 403 to the second cooling circulation pipe 405, and then enters the first cooling circulation pipe 401 from the external cooling pipe 501, and then the liquid inlet valve 402 is started to enter the coolant storage tank 403 to complete the circulation, which can realize the cooling effect on both sides of the mold, prevent the casting from defects such as shrinkage holes and thermal cracks, and improve the dimensional accuracy and surface finish of the casting.

[0027] See also Figure 4In this embodiment, the air cooling component 5 includes an external cooling pipe 501, fins 502, an air cooler 503 and a fan 504; an external cooling pipe 501 is provided at one end of the second cooling circulation pipe 405, fins 502 are provided on the outside of the external cooling pipe 501, and multiple groups of fins 502 are provided. The other end of the external cooling pipe 501 is connected to the first cooling circulation pipe 401, an air cooler 503 is provided on one side of the support plate 202, and a fan 504 is provided below the air cooler 503. The fan 504 is provided in three groups. When in use, during the long die-casting process, the heat of the mold is difficult to be removed in time. After the air conditioner 503 is started to generate cold air, the coolant flows from the second cooling circulation pipe 405 into the external cooling pipe 501, reaches the multiple groups of fins 502 and then enters the first cooling circulation pipe 401. The three groups of fans 504 are started to dissipate heat from the multiple groups of fins 502, remove a large amount of heat in the coolant and reduce the temperature of the coolant, thereby improving the cooling effect and preventing excessive heat from being unable to be removed in time, causing the mold to deform due to overheating, thereby affecting the quality of the finished casting.

[0028] See also Figure 5 In this embodiment, the pressing assembly 7 includes a locking plum blossom column 701 and a plum blossom groove 702; a locking plum blossom column 701 is provided on one side of the upper mold body 604, and four groups of the locking plum blossom columns 701 are provided. The other side of the lower mold body 301 is provided with a plum blossom groove 702, and four groups of the plum blossom groove 702 are provided. When in use, the four groups of locking plum blossom columns 701 are inserted into the four groups of plum blossom grooves 702 during the die-casting process, so that the mold can be opened and closed accurately and stably without deviation, thereby ensuring the accuracy and quality of automotive accessories.

[0029] See also Figure 6 In this embodiment, the movable mold assembly 6 includes a hydraulic rod 601, a top plate 602, an injection hole 603 and an upper mold body 604; a hydraulic rod 601 is arranged on one side of the first cooling circulation pipeline 401, and four groups of hydraulic rods 601 are arranged. A top plate 602 is arranged above the hydraulic rod 601, and an upper mold body 604 is arranged below the top plate 602. An injection hole 603 is opened above the top plate 602. When in use, the four groups of hydraulic rods 601 are started to drive the upper mold body 604 to move and close with the lower mold body 301 to form a cavity, and the casting liquid is injected into the cavity from the injection hole 603 to die-cast into a finished automotive part.

[0030] When die-casting the die-casting mold for automobile parts, four groups of support columns 201 and support plates 202 are provided to provide stable support for the operation of the die-casting mold for automobile parts, and four groups of hydraulic rods 601 are started to drive the upper mold body 604 to move and close with the lower mold body 301 to form a cavity. During the die-casting process, four groups of engaging plum blossom columns 701 are inserted into four groups of plum blossom grooves 702, so that the mold can be opened and closed accurately and stably without deviation. The casting liquid is injected into the cavity from the injection hole 603, and the liquid extraction valve 404 is started to extract the coolant from the coolant storage tank 403 to the second cooling circulation pipeline 405. The outer cooling pipe 501 enters the first cooling circulation pipe 401, and then the liquid inlet valve 402 is started to enter the coolant storage tank 403 to complete the circulation. After the air conditioner 503 is started to generate cold air, the coolant flows from the second cooling circulation pipe 405 into the outer cooling pipe 501, reaches the multiple groups of fins 502, and then enters the first cooling circulation pipe 401. The three groups of fans 504 are started to dissipate heat for the multiple groups of fins 502, taking away a large amount of heat in the coolant to reduce the temperature of the coolant, improve the cooling effect, and prevent the mold from being deformed due to overheating due to the inability to take away the heat in time, thereby affecting the quality of the finished casting.

[0031] Through the above steps, by setting the support component 2, stable support can be provided for the operation of the die-casting mold for automotive parts; by setting the fixed mold component 3, the shape of the die-casting can be fixed to ensure the stability and accuracy of the mold during the die-casting process; by setting the water cooling component 4, the circulating coolant can be used to cool both sides of the mold to prevent defects such as shrinkage holes and thermal cracks in the casting, thereby improving the dimensional accuracy and surface finish of the casting; by setting the air cooling component 5, the coolant can be air-cooled after a long period of die-casting to prevent excessive heat from being removed in time, resulting in deformation of the mold due to overheating, thereby affecting the quality of the finished casting; by setting the movable mold component 6, molten metal can be introduced into the mold cavity to form a casting; by setting the pressing component 7, the mold can be opened and closed accurately and stably, thereby ensuring the accuracy and quality of automotive parts.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A die-casting mold for automobile parts, comprising a bottom plate (1); characterized in that: The invention also comprises a support component (2), a fixed die component (3), a water cooling component (4), an air cooling component (5), a movable die component (6) and a pressing component (7); a support component (2) is arranged above the bottom plate (1) to provide stable support for the operation of the die-casting die of automobile parts; a fixed die component (3) is arranged above the support component (2); a water cooling component (4) is arranged on one side of the fixed die component (3); an air cooling component (5) is arranged on one side of the support component (2) to enable secondary cooling after long-term die-casting to improve the cooling effect; a movable die component (6) is arranged above the fixed die component (3); and a pressing component (7) is arranged on one side of the movable die component (6).

2. The die-casting mold for automobile parts according to claim 1, characterized in that: The support assembly (2) comprises a support column (201) and a support plate (202); the support column (201) is arranged above the bottom plate (1), four groups of the support columns (201) are arranged, and the support plate (202) is arranged above the support column (201).

3. The die-casting mold for automobile parts according to claim 1, characterized in that: The fixed mold assembly (3) comprises a lower mold body (301) and a lower mold plate (302); the lower mold body (301) is arranged above the support plate (202), and the lower mold plate (302) is arranged on the inner bottom surface of the lower mold body (301).

4. The die-casting mold for automobile parts according to claim 3, characterized in that: The water cooling component (4) comprises a first cooling circulation pipeline (401), a liquid inlet valve (402), a cooling liquid storage tank (403), a liquid extraction valve (404) and a second cooling circulation pipeline (405); the first cooling circulation pipeline (401) is arranged on one side of the lower mold body (301), the first cooling circulation pipeline (401) passes through the support plate (202), the liquid inlet valve (402) is arranged at one end of the first cooling circulation pipeline (401), the cooling liquid storage tank (403) is arranged below the liquid inlet valve (402), the liquid extraction valve (404) is arranged on one side of the liquid inlet valve (402), the second cooling circulation pipeline (405) is arranged above the liquid extraction valve (404), and the second cooling circulation pipeline (405) passes through the support plate (202).

5. The die-casting mold for automobile parts according to claim 4, characterized in that: The air cooling component (5) comprises an external cooling pipe (501), fins (502), an air cooler (503) and a fan (504); an external cooling pipe (501) is arranged at one end of the second cooling circulation pipe (405), fins (502) are arranged outside the external cooling pipe (501), and the fins (502) are arranged in multiple groups; the other end of the external cooling pipe (501) is connected to the first cooling circulation pipe (401), an air cooler (503) is arranged on one side of the support plate (202), and a fan (504) is arranged below the air cooler (503), and the fan (504) is arranged in three groups.

6. The die-casting mold for automobile parts according to claim 4, characterized in that: The movable mold assembly (6) includes a hydraulic rod (601), a top plate (602), a liquid injection hole (603) and an upper mold body (604); a hydraulic rod (601) is arranged on one side of the first cooling circulation pipeline (401), and four groups of hydraulic rods (601) are arranged, a top plate (602) is arranged above the hydraulic rod (601), an upper mold body (604) is arranged below the top plate (602), and a liquid injection hole (603) is opened above the top plate (602).

7. The die-casting mold for automobile parts according to claim 1, characterized in that: The pressing assembly (7) comprises a locking plum blossom column (701) and a plum blossom groove (702); one side of the upper mold body (604) is provided with a locking plum blossom column (701), and the locking plum blossom column (701) is provided in four groups; the other side of the lower mold body (301) is provided with a plum blossom groove (702), and the plum blossom groove (702) is provided in four groups.

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