Die clamping mechanism for aluminum die-casting mold
By introducing a movable mold base and a driving device into the aluminum shell die-casting mold, the problem of insufficient mold stability was solved, achieving high-precision die-casting and high-quality aluminum shell forming, meeting the high standard requirements of automotive aluminum shells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU XIANGGUANGHONG METAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-19
AI Technical Summary
Existing aluminum shell die-casting molds suffer from structural design defects or improper material selection during the die-casting process, resulting in insufficient mold stability and an inability to accurately maintain the formed shape, thus affecting the forming quality and mechanical properties of the aluminum shell.
The design of the movable mold base, combined with the drive device and multi-directional movable groove, ensures the stability and flexibility of the mold during the die casting process. By precisely controlling the flow and filling of aluminum liquid, the internal structure of the aluminum shell is optimized, reducing porosity and shrinkage defects.
It improves the density and mechanical properties of aluminum shells, meeting the strength and durability requirements of automotive aluminum shells, extending the service life of molds and reducing wear.
Smart Images
Figure CN224372786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting mold technology, and in particular to a mold closing and forming mechanism for aluminum shell die casting mold. Background Technology
[0002] In aluminum die-casting molds, some current mold structures lack sufficient stability. This is mainly manifested in the mold's tendency to deform or shift during the die-casting process due to structural design flaws or improper material selection. The high pressure and high speed of molten metal impact during die-casting further damages the already unstable mold structure, making it impossible to accurately maintain the intended shape. This lack of stability directly reduces the quality of the aluminum shell. Due to the instability of the mold structure, dimensional deviations are prone to occur during molding, failing to meet high-precision design requirements. This can lead to defects such as flow marks and porosity on the aluminum shell surface, severely affecting its appearance and mechanical properties. Utility Model Content
[0003] To solve the above problems, this utility model provides a mold closing and forming mechanism for aluminum shell die casting molds, which makes the mold opening and closing action smoother by setting a movable mold base, reducing auxiliary time, reducing mold wear, and extending the service life of the mold.
[0004] The technical solution adopted by this utility model is: a mold closing and forming mechanism for aluminum shell die casting mold, including a forming mold and a driving device. The forming mold consists of a first fixed mold base, a second fixed mold base, a third fixed mold base, a first movable mold base, and a second movable mold base. The first fixed mold base is mated and connected with the second fixed mold base and the third fixed mold base, forming a die casting cavity between them. The die casting cavity is provided with a first movable groove in a first direction and a second movable groove in a second direction. The second movable mold base is disposed in the second movable groove, and the first movable mold base is disposed in the first movable groove. The driving device is used to drive the first movable mold base to move within the first movable groove.
[0005] A further improvement to the above solution is that the first fixed mold base is provided with a first connecting platform and a second connecting platform, the first connecting platform and the second connecting platform are located on the same side of the first fixed mold base, and the height of the first connecting platform is lower than the height of the second connecting platform; the second fixed mold base is located on the first connecting platform and the second fixed mold base is located on the second connecting platform.
[0006] A further improvement to the above solution is that an arc-shaped groove is provided on the first connecting platform, and an arc-shaped boss is provided on the second fixed mold base, wherein the arc-shaped boss cooperates with the arc-shaped groove.
[0007] A further improvement to the above scheme is that the second movable groove is disposed on one side of the second fixed mold base, and one end of the second movable groove extends through to one side of the second fixed mold base.
[0008] A further improvement to the above scheme is that the first fixed mold base is provided with a first groove, the second fixed mold base is provided with a second groove, and the third fixed mold base is provided with a third groove, wherein the first groove is connected to the second groove and the third groove to form a second movable groove.
[0009] A further improvement to the above scheme is that the second movable mold base is provided with a shaping ejector pin, one end of which extends into the die-casting cavity.
[0010] A further improvement to the above solution is that the driving device includes a driving mounting frame, a driving module, a sliding module, a limiting module, and a driving link. The driving mounting frame is disposed on one side of the forming mold. The driving module is disposed on the driving mounting frame and is used to drive the driving link to move. The limiting module is used to limit the movement of the driving link. One end of the driving link is connected to the sliding module. The sliding module is connected to the first movable mold base to drive the first movable mold base to reciprocate toward the die-casting cavity.
[0011] A further improvement to the above solution is that the drive module is a drive cylinder or a hydraulic cylinder, and the drive connecting rod is movably disposed within the cylinder body of the drive module.
[0012] A further improvement to the above solution is that the sliding module includes sliding guide plates disposed on both sides of the drive linkage and a slider disposed between the two sliding guide plates. The slider is slidably disposed on the sliding guide plates, and the first movable mold base is disposed on the slider and slides with the slider.
[0013] A further improvement to the above solution is that a sliding guide groove is provided on the sliding guide plate, the sliding guide groove is parallel to the axis of the drive connecting rod, and the slider is slidably disposed on the sliding guide groove.
[0014] The beneficial effects of this utility model are:
[0015] Compared to existing aluminum shell die-casting molds, this invention ensures high-precision die-casting through the forming mold. A first fixed mold base, a second fixed mold base, and a third fixed mold base are connected to form a die-casting cavity. This stable connection effectively withstands the high pressure during the die-casting process, ensuring the stability of the die-casting cavity and thus providing precise dimensions and good surface quality for automotive aluminum shells. Movable grooves are provided in different directions within the die-casting cavity, corresponding to the first and second movable mold bases, enhancing the mold's flexibility. During the die-casting process, a drive device moves the first movable mold base within the first movable groove, precisely controlling the flow and filling of the molten aluminum, optimizing the internal structure of the aluminum shell, reducing defects such as porosity and shrinkage, and improving the density and mechanical properties of the aluminum shell, meeting the stringent strength and durability requirements of automotive aluminum shells. The movable grooves in different directions within the die-casting cavity, corresponding to the first and second movable mold bases, enhance the mold's flexibility. During the die-casting process, the drive unit moves the first movable mold base within the first movable groove, precisely controlling the flow and filling of the molten aluminum. This optimizes the internal structure of the aluminum shell, reduces defects such as porosity and shrinkage, and improves the density and mechanical properties of the aluminum shell, meeting the stringent strength and durability requirements of automotive aluminum shells. This invention, through the design of the movable mold base, makes the mold opening and closing actions smoother, reduces auxiliary time, lowers mold wear, and extends the mold's service life. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the mold closing and forming mechanism for the aluminum shell die-casting mold of this utility model;
[0017] Figure 2 for Figure 1 Another perspective three-dimensional schematic diagram of the mold closing and forming mechanism for die-casting molds for aluminum shells;
[0018] Figure 3 for Figure 1 Another perspective three-dimensional schematic diagram of the mold closing and forming mechanism for die-casting molds for aluminum shells;
[0019] Figure 4 for Figure 1 A schematic diagram of the forming mold of the die-casting mechanism for aluminum shells;
[0020] Figure 5 for Figure 1 Exploded view of the forming mold of the die-casting mechanism for aluminum shells;
[0021] Figure 6 for Figure 1 An exploded view of the forming mold of the die-casting mechanism for aluminum shells.
[0022] Explanation of reference numerals in the attached drawings: Molding mold 1, First fixed mold base 11, First connecting platform 111, Second connecting platform 112, Arc-shaped groove 113, First groove 114, Second fixed mold base 12, Arc-shaped boss 121, Second groove 122, Third fixed mold base 13, Third groove 131, First movable mold base 14, Second movable mold base 15, Shaping ejector pin 151, Die casting cavity 16, First movable groove 161, Second movable groove 162, Driving device 2, Driving mounting bracket 21, Driving module 22, Sliding module 23, Sliding guide plate 231, Slider 232, Sliding guide groove 233, Limiting module 24, Driving connecting rod 25. Detailed Implementation
[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0026] like Figures 1-6As shown, in one embodiment of this utility model, a mold-closing and forming mechanism for aluminum shell die-casting molds is provided, including a forming mold 1 and a driving device 2. The forming mold 1 consists of a first fixed mold base 11, a second fixed mold base 12, a third fixed mold base 13, a first movable mold base 14, and a second movable mold base 15. The first fixed mold base 11 is mated and connected to the second fixed mold base 12 and the third fixed mold base 13, forming a die-casting cavity 16 between them. The die-casting cavity 16 has a first movable groove 161 in a first direction and a second movable groove 162 in a second direction. The second movable mold base 15 is disposed in the second movable groove 162, and the first movable mold base 14 is disposed in the first movable groove 161. The driving device 2 is used to drive the first movable mold base 14 to move within the first movable groove 161. This embodiment ensures high-precision die-casting through the forming mold 1. The first fixed mold base 11, the second fixed mold base 12, and the third fixed mold base 13 are connected to form the die-casting cavity 16. This stable connection effectively withstands the high pressure during the die-casting process, ensuring the stability of the die-casting cavity 16 and thus providing precise dimensions and good surface quality for the automotive aluminum shell. The die-casting cavity 16 has movable grooves in different directions, corresponding to the first movable mold base 14 and the second movable mold base 15, enhancing the mold's flexibility. During the die-casting process, the drive device 2 drives the first movable mold base 14 to move within the first movable groove 161, precisely controlling the flow and filling of the molten aluminum, optimizing the internal structure of the aluminum shell, reducing defects such as porosity and shrinkage, improving the density and mechanical properties of the aluminum shell, and meeting the stringent requirements for strength and durability of automotive aluminum shells. The die-casting cavity 16 has movable grooves in different directions, corresponding to the first movable mold base 14 and the second movable mold base 15, enhancing the mold's flexibility. During the die-casting process, the drive device 2 drives the first movable mold base 14 to move within the first movable groove 161, which can precisely control the flow and filling of the aluminum liquid, optimize the internal structure of the aluminum shell, reduce defects such as porosity and shrinkage, improve the density and mechanical properties of the aluminum shell, and meet the stringent requirements for strength and durability of automotive aluminum shells. In this embodiment, the movable mold base makes the mold opening and closing actions smoother, reduces auxiliary time, reduces mold wear, and extends the service life of the mold.
[0027] The first fixed mold base 11 is provided with a first connecting platform 111 and a second connecting platform 112, which are located on the same side of the first fixed mold base 11. The height of the first connecting platform 111 is lower than the height of the second connecting platform 112. The second fixed mold base 12 is located on the first connecting platform 111 and the second fixed mold base 12 is located on the second connecting platform 112. Specifically, the first connecting platform 111 is provided with an arc-shaped groove 113, and the second fixed mold base 12 is provided with an arc-shaped boss 121, which mates with the arc-shaped groove 113. In this embodiment, the design of different heights provides a clear positioning reference for the installation of subsequent components, enabling the second fixed mold base 12 to be accurately installed in the corresponding position, ensuring the rationality and stability of the layout of the entire mold-closing structure. The arc-shaped groove 113 on the first connecting platform 111 mates with the arc-shaped boss 121 on the second fixed mold base 12. On the one hand, during the mold closing process, the arc-shaped boss 121 and the groove are precisely matched, which can effectively guide the second fixed mold base 12 to be accurately positioned, improve the accuracy and efficiency of mold closing, and reduce aluminum shell die-casting defects caused by positioning deviations. On the other hand, it enhances the connection stability between the two mold bases, and can effectively disperse pressure when subjected to high pressure during the die-casting process, preventing displacement or loosening between the mold bases.
[0028] The second movable groove 162 is disposed on one side of the second fixed mold base 12, with one end of the second movable groove 162 extending through to one side of the second fixed mold base 12. In this embodiment, the through-type second movable groove 162 ensures smoother movement of the moving parts during operation, reduces jamming, and thus improves the stability and accuracy of the mold closing action, which is particularly crucial for high-precision die casting of automotive aluminum shells. Simultaneously, the movable groove helps to achieve better force transmission and dispersion during the die casting process, allowing the molten aluminum to fill the mold cavity evenly, effectively avoiding molding defects caused by uneven pressure, such as bubbles and material shortages.
[0029] The first fixed mold base 11 is provided with a first groove 114, the second fixed mold base 12 is provided with a second groove 122, and the third fixed mold base 13 is provided with a third groove 131. The first groove 114 is connected to the second groove 122 and the third groove 131 to form a second movable groove 162. In this embodiment, the molten aluminum can be filled more evenly to various parts, effectively avoiding defects such as material shortage and air bubbles caused by poor flow of molten aluminum, and greatly improving the forming quality of automotive aluminum shells. Secondly, it enhances the overall stability of the mold. The interconnected grooves allow the stress on the mold to be more evenly distributed during mold closing and die casting, reducing the risk of damage to the mold caused by local stress concentration, extending the service life of the mold, and reducing production costs.
[0030] The second movable mold base 15 is provided with a shaping ejector pin 151, one end of which extends into the die-casting cavity 16. In this embodiment, after the molten aluminum is injected into the die-casting cavity 16, the shaping ejector pin 151 can accurately support and position specific parts of the aluminum shell, ensuring that the aluminum shell maintains a stable shape during the forming process and effectively avoiding deformation caused by the impact of molten aluminum or solidification shrinkage. After die-casting is completed, when the aluminum shell is ejected, the shaping ejector pin 151 helps to eject it smoothly, preventing the aluminum shell from cracking or being damaged due to uneven local stress, greatly improving the product yield, reducing production costs, and helping to carry out the efficient and stable production of automotive aluminum shell die casting.
[0031] The driving device 2 includes a driving mounting frame 21, a driving module 22, a sliding module 23, a limiting module 24, and a driving connecting rod 25. The driving mounting frame 21 is disposed on one side of the molding die 1. The driving module 22 is disposed on the driving mounting frame 21 and is used to drive the driving connecting rod 25 to move. The limiting module 24 is used to limit the movement of the driving connecting rod 25. One end of the driving connecting rod 25 is connected to the sliding module 23, and the sliding module 23 is connected to the first movable mold base 14 to drive the first movable mold base 14 to reciprocate toward the die-casting cavity 16. In this embodiment, the driving module 22 is disposed on the driving mounting frame 21, which can accurately and stably drive the driving connecting rod 25 to move, ensuring the efficiency and reliability of power transmission. The limiting module 24 limits the movement of the driving connecting rod 25, avoiding excessive displacement or deviation of the driving connecting rod 25 during movement, and ensuring the accuracy and stability of the mold closing action. The sliding module 23 is connected to the drive linkage 25 and the first movable mold base 14. Driven by the drive linkage 25, it can drive the first movable mold base 14 to reciprocate toward the die-casting cavity 16, realizing the opening and closing action of the mold. This is beneficial for the tight closing and precise separation of the mold during the aluminum shell die-casting process.
[0032] The drive module 22 is a drive cylinder or hydraulic cylinder, and the drive connecting rod 25 is movably disposed within the cylinder body of the drive module 22. The sliding module 23 includes sliding guide plates 231 disposed opposite to both sides of the drive connecting rod 25 and a slider 232 disposed between the two sliding guide plates 231. The slider 232 is slidably disposed on the sliding guide plates 231, and the first movable mold base 14 is disposed on the slider 232 and slides with the slider 232. In this embodiment, the drive module 22 uses a cylinder or hydraulic cylinder, which can provide stable and strong power output and accurately control the movement of the drive connecting rod 25 within the cylinder body, meeting the stringent requirements for mold movement accuracy in automotive aluminum shell die casting. In the sliding module 23, the oppositely disposed sliding guide plates 231 provide a precise sliding track for the slider 232, greatly improving the smoothness and straightness of the slider 232's sliding. The slider 232 slides smoothly on the guide plate, driving the first movable mold base 14 to move precisely, ensuring the positional accuracy of the mold when it is closed, and effectively avoiding defects in aluminum shell die casting caused by mold base offset, such as dimensional deviation and uneven parting surface.
[0033] A sliding guide plate 231 is provided with a sliding guide groove 233, which is parallel to the axial direction of the drive connecting rod 25. The slider 232 is slidably disposed on the sliding guide groove 233. In this embodiment, the precise guiding effect ensures the stability and accuracy of the slider 232's movement. During the mold closing process, the slider 232 slides smoothly along the sliding guide groove 233, moving strictly according to the preset path, closely cooperating with the action of the drive connecting rod 25, greatly improving the mold closing accuracy, effectively avoiding aluminum shell forming defects caused by slider 232 offset, and ensuring the accuracy of product dimensions.
[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A mold closing and forming mechanism for an aluminum shell die-casting mold, characterized in that: The device includes a molding die and a driving device. The molding die consists of a first fixed mold base, a second fixed mold base, a third fixed mold base, a first movable mold base, and a second movable mold base. The first fixed mold base is mated and connected to the second and third fixed mold bases, forming a die-casting cavity between them. The die-casting cavity has a first movable groove in a first direction and a second movable groove in a second direction. The second movable mold base is disposed in the second movable groove, and the first movable mold base is disposed in the first movable groove. The driving device is used to drive the first movable mold base to move within the first movable groove.
2. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 1, characterized in that: The first fixed mold base is provided with a first connecting platform and a second connecting platform, which are located on the same side of the first fixed mold base. The height of the first connecting platform is lower than the height of the second connecting platform. The second fixed mold base is located on the first connecting platform and the second fixed mold base is located on the second connecting platform.
3. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 2, characterized in that: The first connecting platform is provided with an arc-shaped groove, and the second fixed mold base is provided with an arc-shaped boss, which cooperates with the arc-shaped groove.
4. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 1, characterized in that: The second movable groove is disposed on one side of the second fixed mold base, and one end of the second movable groove extends through to one side of the second fixed mold base.
5. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 1, characterized in that: The first fixed mold base is provided with a first groove, the second fixed mold base is provided with a second groove, and the third fixed mold base is provided with a third groove. The first groove is connected to the second groove and the third groove to form a second movable groove.
6. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 1, characterized in that: The second movable mold base is provided with a shaping ejector pin, one end of which extends into the die-casting cavity.
7. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 1, characterized in that: The driving device includes a driving mounting frame, a driving module, a sliding module, a limiting module, and a driving link. The driving mounting frame is disposed on one side of the forming mold. The driving module is disposed on the driving mounting frame and is used to drive the driving link to move. The limiting module is used to limit the movement of the driving link. One end of the driving link is connected to the sliding module. The sliding module is connected to the first movable mold base to drive the first movable mold base to reciprocate toward the die-casting cavity.
8. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 7, characterized in that: The drive module is a drive cylinder or a hydraulic cylinder, and the drive connecting rod is movably disposed within the cylinder body of the drive module.
9. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 8, characterized in that: The sliding module includes sliding guide plates disposed on both sides of the drive linkage and a slider disposed between the two sliding guide plates. The slider is slidably disposed on the sliding guide plates, and the first movable mold base is disposed on the slider and slides with the slider.
10. The mold closing and forming mechanism for aluminum shell die casting mold according to claim 9, characterized in that: The sliding guide plate is provided with a sliding guide groove, which is parallel to the axis of the drive connecting rod, and the slider is slidably disposed on the sliding guide groove.