Automobile part die-casting die with ejection demolding function

Abstract

The utility model discloses an automobile part die-casting die with an ejection demolding function, and relates to the technical field of die-casting dies. The die-casting die comprises a workbench, the top of the workbench is fixedly connected with a fixed die, the top of the fixed die is provided with a die cavity, the rear end of the top of the workbench is fixedly connected with a die-casting assembly, and an inner cavity of the workbench is fixedly connected with an ejection mechanism; the die-casting assembly comprises a mounting plate. Molten metal is poured in the die cavity in the fixed die, the first hydraulic cylinder is started through the external controller, the first hydraulic cylinder drives the lifting plate to move, the lifting plate drives the upper die to descend, and the upper die and the fixed die are assembled, so that the purpose of quick die casting can be achieved; and the lifting plate can drive a spring to be compressed while sliding on the surfaces of the limiting columns, the purpose of buffering protection can be effectively achieved, and the service life of the automobile part die-casting die is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a die casting mold for automotive parts with ejection and demolding function. Background Technology

[0002] Die casting, also known as pressure casting, is a metal casting process. Its basic process is as follows: molten metal is first cast into the cavity of a mold at low or high speed. The mold has movable cavity surfaces. As the molten metal cools, it is pressurized and forged, which not only eliminates shrinkage cavities and porosity defects in the blank, but also makes the internal structure of the blank reach the forged state with broken grains, and the comprehensive mechanical properties of the blank are significantly improved.

[0003] Currently, traditional automotive parts die-casting molds lack effective ejection structures, resulting in low material discharge efficiency after workpiece forming, which reduces production efficiency. In addition, the lack of buffer protection functions reduces the service life of the mold.

[0004] To address these issues, we provide a die-casting mold for automotive parts with an ejection and demolding function. Utility Model Content

[0005] The purpose of this utility model is to provide a die-casting mold for automotive parts with an ejection and demolding function. By cooperating with the die-casting components and the ejection mechanism, it solves the problem that traditional die-casting molds for automotive parts lack an effective ejection structure during use, resulting in low material discharge efficiency after workpiece forming, thereby reducing workpiece production efficiency. At the same time, it lacks a certain buffer protection function, which reduces the service life of the mold.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a die-casting mold for automotive parts with ejection and demolding function, including a worktable, a fixed mold fixedly connected to the top of the worktable, a mold cavity opened on the top of the fixed mold, a die-casting assembly fixedly connected to the rear end of the top of the worktable, and an ejection mechanism fixedly connected to the inner cavity of the worktable.

[0008] The die-casting assembly includes a mounting plate, the bottom of which is fixedly connected to a worktable, a mounting platform fixedly connected to the top of the mounting plate, a first hydraulic cylinder fixedly connected to the bottom of the mounting platform, a lifting plate fixedly connected to the bottom of the first hydraulic cylinder, an upper mold fixedly connected to the bottom of the lifting plate, and limit posts fixedly connected to the four corners of the top of the worktable. The top of the limit posts penetrates the bottom of the lifting plate and extends to the top of the lifting plate, and springs are sleeved on the surface of the limit posts.

[0009] The ejection mechanism includes a connecting seat, the bottom of which is fixedly connected to the inner wall of the worktable, a second hydraulic cylinder is fixedly connected to the top of the connecting seat, a positioning plate is fixedly connected to the top of the second hydraulic cylinder, an ejection plate is fixedly connected to the top of the positioning plate, and the top of the ejection plate penetrates the bottom of the fixed mold and extends to the top of the fixed mold.

[0010] By adopting the above technical solution, molten metal can be injected into the mold cavity inside the fixed mold for rapid cooling and forming, ensuring the production efficiency of the workpiece. The limiting post can limit the lifting plate, ensuring the stability of the lifting plate during movement. At the same time, the spring can provide shock absorption for the lifting plate, effectively reducing the damage to the mold caused by the pressure generated when the upper mold and the fixed mold come into contact, and greatly extending the service life of the mold.

[0011] The present invention is further configured such that a circular groove is provided on the top of the fixed mold, the ejector plate is circular in shape, and the top of the ejector plate extends into the inner cavity of the circular groove.

[0012] By adopting the above technical solution, the circular groove can be used in conjunction with the ejector plate. The circular groove and the ejector plate are on the same plane, which can facilitate the ejection of the workpiece.

[0013] The present invention is further configured such that limit sleeves are fixedly connected to the four corners of the bottom of the lifting plate, and the bottom of the limit sleeves is in contact with the spring.

[0014] By adopting the above technical solution, the spring can be installed and limited by the limiting sleeve, thus ensuring the stability of the spring during the compression process.

[0015] The present invention is further configured such that limit grooves are provided on both sides of the front end and both sides of the rear end of the lifting plate, and limit blocks that cooperate with the limit grooves are fixedly connected to both sides of the front end and both sides of the rear end of the fixed mold.

[0016] By adopting the above technical solution, the connection between the fixed mold and the lifting plate can be limited by the limiting groove and the limiting block, thus ensuring the stability during the mold closing process.

[0017] The present invention is further configured such that positioning posts are fixedly connected to the four corners of the top of the fixed mold, and positioning grooves that cooperate with the positioning posts are opened at the four corners of the bottom of the upper mold.

[0018] By adopting the above technical solution, the positioning pins and positioning grooves can improve the stability of the fixed mold and the upper mold during mold closing, thereby improving the forming effect of the workpiece.

[0019] The present invention is further configured such that the top of the lifting plate is provided with an installation groove, the bottom of the inner cavity of the installation groove is provided with an installation hole, and the bottom of the first hydraulic cylinder extends into the inner cavity of the installation groove.

[0020] By adopting the above technical solution, the first hydraulic cylinder can be installed through the mounting groove and mounting hole, ensuring the stability of the installation of the first hydraulic cylinder.

[0021] The present invention is further provided that the surface of the workbench is provided with a maintenance plate, and fasteners are provided at the four corners of the surface of the maintenance plate, and the maintenance plate is fixedly connected to the workbench by the fasteners.

[0022] By adopting the above technical solution, the internal structure of the workbench can be inspected and repaired using inspection plates and fasteners, thereby achieving the purpose of convenient maintenance.

[0023] The present invention is further provided that both sides of the bottom of the workbench are fixedly connected to a base, and the bottom of the base is provided with an anti-vibration pad.

[0024] By adopting the above technical solution, the workbench can be supported by the base and anti-vibration pad, ensuring the overall stability and shock resistance of the workbench.

[0025] This utility model has the following beneficial effects:

[0026] 1. This utility model achieves rapid die casting by pouring molten metal into the mold cavity inside the fixed mold and activating the first hydraulic cylinder through an external controller. The first hydraulic cylinder drives the lifting plate to move, and the lifting plate drives the upper mold to descend. The upper mold and the fixed mold are then closed, thereby achieving the purpose of rapid die casting. While the lifting plate slides on the surface of the limit post, it can drive the spring to compress, which can effectively play the purpose of buffer protection and greatly extend the service life of the automotive parts die casting mold.

[0027] 2. This utility model starts the second hydraulic cylinder through an external controller. The second hydraulic cylinder drives the positioning plate to move, and the positioning plate drives the ejector plate to move. The ejector plate ejects the cooled and formed workpiece, thereby effectively ensuring the workpiece discharge efficiency. At the same time, the ejector plate has a circular structure, which can ensure the uniformity of force. The ejector plate and the mold cavity are on the same plane, which can reduce the generation of burrs on the workpiece surface and improve the workpiece production quality. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0029] Figure 1 A three-dimensional structural view of a die-casting mold for automotive parts with ejection and demolding function;

[0030] Figure 2 A perspective view of the fixed mold in a die-casting mold for automotive parts with ejection and demolding function;

[0031] Figure 3 A perspective view of the ejection mechanism in a die-casting mold for automotive parts with ejection and demolding function;

[0032] Figure 4 A perspective view of a lifting plate in a die-casting mold for automotive parts with ejection and demolding functions;

[0033] Figure 5 This is a perspective view of the upper mold in a die-casting mold for automotive parts with ejection and demolding functions.

[0034] In the attached diagram: 1. Worktable; 2. Fixed mold; 3. Mold cavity; 4. Die-casting assembly; 5. Ejection mechanism; 6. Mounting plate; 7. Mounting platform; 8. First hydraulic cylinder; 9. Lifting plate; 10. Upper mold; 11. Limiting post; 12. Spring; 13. Connecting seat; 14. Second hydraulic cylinder; 15. Positioning plate; 16. Ejection plate; 17. Circular groove; 18. Limiting sleeve; 19. Limiting groove; 20. Limiting block; 21. Positioning post; 22. Positioning groove; 23. Mounting groove; 24. Mounting hole; 25. Inspection plate; 26. Base. Detailed Implementation

[0035] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Specific Implementation Example 1

[0037] Please see Figures 1-5 This utility model is a die-casting mold for automotive parts with ejection and demolding function, including a worktable 1, a fixed mold 2 fixedly connected to the top of the worktable 1, a mold cavity 3 opened on the top of the fixed mold 2, a die-casting assembly 4 fixedly connected to the rear end of the top of the worktable 1, and an ejection mechanism 5 fixedly connected to the inner cavity of the worktable 1.

[0038] The die-casting assembly 4 includes a mounting plate 6, the bottom of which is fixedly connected to the workbench 1, a mounting platform 7 is fixedly connected to the top of the mounting plate 6, a first hydraulic cylinder 8 is fixedly connected to the bottom of the mounting platform 7, a lifting plate 9 is fixedly connected to the bottom of the first hydraulic cylinder 8, an upper mold 10 is fixedly connected to the bottom of the lifting plate 9, and limit posts 11 are fixedly connected to the four corners of the top of the workbench 1. The top of the limit posts 11 penetrates the bottom of the lifting plate 9 and extends to the top of the lifting plate 9, and a spring 12 is sleeved on the surface of the limit posts 11.

[0039] The ejection mechanism 5 includes a connecting seat 13. The bottom of the connecting seat 13 is fixedly connected to the inner wall of the worktable 1. A second hydraulic cylinder 14 is fixedly connected to the top of the connecting seat 13. A positioning plate 15 is fixedly connected to the top of the second hydraulic cylinder 14. An ejection plate 16 is fixedly connected to the top of the positioning plate 15. The top of the ejection plate 16 penetrates the bottom of the fixed mold 2 and extends to the top of the fixed mold 2.

[0040] Specifically: molten metal can be injected into the mold cavity 3 inside the fixed mold 2 for rapid cooling and forming, ensuring the production efficiency of the workpiece. The limiting post 11 can limit the lifting plate 9, ensuring the stability of the lifting plate 9 during movement. At the same time, the spring 12 can provide shock absorption for the lifting plate 9, effectively reducing the damage to the mold caused by the pressure generated when the upper mold 10 contacts the fixed mold 2, and greatly extending the service life of the mold. Specific Implementation Example 2

[0042] Please see Figures 1-5 Based on the first specific embodiment, the top of the fixed mold 2 is provided with a circular groove 17, the ejector plate 16 is circular in shape, and the top of the ejector plate 16 extends into the inner cavity of the circular groove 17. Limit sleeves 18 are fixedly connected to the four corners of the bottom of the lifting plate 9, and the bottom of the limit sleeves 18 contacts the spring 12. Limit grooves 19 are provided on both sides of the front end and both sides of the rear end of the lifting plate 9. Limiting blocks 20 that cooperate with the limiting grooves 19 are fixedly connected to both sides of the front end and both sides of the rear end of the fixed mold 2. Positioning pins 2 are fixedly connected to the four corners of the top of the fixed mold 2. 1. The four corners of the bottom of the upper mold 10 are provided with positioning grooves 22 that cooperate with the positioning pins 21. The top of the lifting plate 9 is provided with an installation groove 23. The bottom of the inner cavity of the installation groove 23 is provided with an installation hole 24. The bottom of the first hydraulic cylinder 8 extends into the inner cavity of the installation groove 23. The surface of the worktable 1 is provided with a maintenance plate 25. Fasteners are provided at the four corners of the surface of the maintenance plate 25. The maintenance plate 25 is fixedly connected to the worktable 1 by the fasteners. The bottom sides of the worktable 1 are fixedly connected with bases 26. The bottom of the bases 26 is provided with anti-vibration pads.

[0043] Specifically: the circular groove 17 can be used in conjunction with the ejector plate 16. The circular groove 17 and the ejector plate 16 are on the same plane, which facilitates the ejection of the workpiece. The limiting sleeve 18 can be used to install and limit the spring 12, ensuring the stability of the spring 12 during compression. The limiting groove 19 and the limiting block 20 can limit the connection between the fixed mold 2 and the lifting plate 9, ensuring the stability during mold closing. The positioning pin 21 and the positioning groove 22 can ensure the stability of the fixed mold 2 and the upper mold 10 during mold closing, improving the forming effect of the workpiece. The mounting groove 23 and the mounting hole 24 can be used to install the first hydraulic cylinder 8, ensuring the stability of the installation of the first hydraulic cylinder 8. The inspection plate 25 and fasteners can be used to inspect the internal structure of the worktable 1, thereby achieving the purpose of convenient maintenance. The base 26 and the anti-vibration pad can support the worktable 1, ensuring the overall stability and vibration resistance of the worktable 1.

[0044] The working principle of this utility model is as follows: Molten metal is poured into the mold cavity 3 inside the fixed mold 2. An external controller activates the first hydraulic cylinder 8, which moves the lifting plate 9. The lifting plate 9 then lowers the upper mold 10, allowing the upper mold 10 to close with the fixed mold 2, thus achieving rapid die casting. While the lifting plate 9 slides on the surface of the limiting post 11, it compresses the spring 12, effectively providing buffer protection and greatly extending the service life of the automotive parts die casting mold. An external controller activates the second hydraulic cylinder 14, which moves the positioning plate 15. The positioning plate 15 then moves the ejector plate 16, which ejects the cooled and formed workpiece, effectively ensuring efficient workpiece output. The circular structure of the ejector plate 16 ensures uniform force distribution. Since the ejector plate 16 and the mold cavity 3 are on the same plane, it reduces burrs on the workpiece surface and improves workpiece production quality.

[0045] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to specific implementation methods. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A die-casting mold for automotive parts with ejection and demolding function, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a fixed mold (2), the top of the fixed mold (2) is provided with a mold cavity (3), the rear end of the top of the workbench (1) is fixedly connected to a die casting assembly (4), and the inner cavity of the workbench (1) is fixedly connected to an ejection mechanism (5). The die-casting assembly (4) includes a mounting plate (6), the bottom of which is fixedly connected to the workbench (1), a mounting platform (7) is fixedly connected to the top of the mounting plate (6), a first hydraulic cylinder (8) is fixedly connected to the bottom of the mounting platform (7), a lifting plate (9) is fixedly connected to the bottom of the first hydraulic cylinder (8), an upper mold (10) is fixedly connected to the bottom of the lifting plate (9), and limit posts (11) are fixedly connected to the four corners of the top of the workbench (1). The top of the limit post (11) penetrates the bottom of the lifting plate (9) and extends to the top of the lifting plate (9). A spring (12) is sleeved on the surface of the limit post (11). The ejection mechanism (5) includes a connecting seat (13), the bottom of which is fixedly connected to the inner wall of the worktable (1), a second hydraulic cylinder (14) is fixedly connected to the top of the connecting seat (13), a positioning plate (15) is fixedly connected to the top of the second hydraulic cylinder (14), an ejection plate (16) is fixedly connected to the top of the positioning plate (15), and the top of the ejection plate (16) penetrates the bottom of the fixed mold (2) and extends to the top of the fixed mold (2).

2. The die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: The top of the fixed mold (2) is provided with a circular groove (17), the shape of the ejector plate (16) is circular, and the top of the ejector plate (16) extends into the inner cavity of the circular groove (17).

3. The die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: Limit sleeves (18) are fixedly connected to the four corners of the bottom of the lifting plate (9), and the bottom of the limit sleeves (18) is in contact with the spring (12).

4. The die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: Limiting grooves (19) are provided on both sides of the front end and both sides of the rear end of the lifting plate (9), and limiting blocks (20) that cooperate with the limiting grooves (19) are fixedly connected on both sides of the front end and both sides of the rear end of the fixed mold (2).

5. A die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: The four corners of the top of the fixed mold (2) are fixedly connected with positioning posts (21), and the four corners of the bottom of the upper mold (10) are provided with positioning grooves (22) that cooperate with the positioning posts (21).

6. A die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: The top of the lifting plate (9) is provided with an installation groove (23), and the bottom of the inner cavity of the installation groove (23) is provided with an installation hole (24). The bottom of the first hydraulic cylinder (8) extends into the inner cavity of the installation groove (23).

7. A die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: The surface of the workbench (1) is provided with a maintenance plate (25), and fasteners are provided at the four corners of the surface of the maintenance plate (25). The maintenance plate (25) is fixedly connected to the workbench (1) by the fasteners.

8. A die-casting mold for automotive parts with ejection and demolding function according to claim 1, characterized in that: The workbench (1) has bases (26) fixedly connected to both sides of its bottom, and the bottom of the bases (26) is provided with anti-vibration pads.

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