A precision die-casting mold based on magnesium alloy material

Abstract

The present invention relates to the technical field of die casting molds, and in particular to a precision die casting mold based on magnesium alloy materials, comprising a base, a workbench fixedly connected to the top of the base, a top plate arranged above the workbench, a die casting model and a mold seat arranged on opposite sides of the workbench and the top plate, a controller fixedly installed on the workbench, a placement opening at the bottom of the mold seat, a fixing structure for clamping and fixing the mold seat arranged on the workbench, a demoulding structure for facilitating demoulding of the mold in the mold seat arranged on the workbench, a cooling structure for cooling the mold seat to assist demoulding arranged on the base, a baffle movably installed in the placement opening, a driving structure for driving the top plate to move vertically arranged on the workbench, and a mounting structure for fixing the die casting model arranged on the top plate. Compared with the demoulding method in the prior art, the present invention is more convenient for demoulding of the mold through the arrangement of the cooling structure and the demoulding structure, and is not easy to damage the mold.

Description

Technical Field

[0001] The invention relates to the technical field of die casting moulds, and in particular to a precision die casting mould based on magnesium alloy materials. Background Art

[0002] Die casting is a method of casting liquid die forging, a process completed on a special die casting forging machine. Its basic process is that the molten metal is first cast and filled into the mold cavity at a low or high speed. The mold has a movable cavity surface, which is pressurized and forged as the molten metal cools, which not only eliminates the shrinkage defects of the blank, but also makes the internal structure of the blank reach the broken grains of the forged state.

[0003] Magnesium-aluminum alloy profiles are everywhere in life. In the prior art, precision die-casting molds are usually used to die-cast aluminum-magnesium alloys. However, after the magnesium-aluminum alloy profiles are die-cast, they often need to be cooled naturally before demolding, which slows down the entire production rhythm, affects production efficiency, and thus affects the subsequent work of the entire production line. At the same time, in the prior art, ejectors or ejectors are generally used to eject the die-cast and cooled molds during the demolding process. However, due to the easy adhesion to the mold seat, violent ejection can easily cause the mold to wear or even damage, affecting the subsequent use of the mold. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that after the magnesium-aluminum alloy profile is die-casted, it often needs to be cooled naturally before demolding, which slows down the entire production rhythm, affects production efficiency, and thus affects the subsequent work of the entire production line. At the same time, the prior art generally uses an ejector pin or an ejector rod to eject the die after die-casting and cooling during the demolding process. However, due to the easy adhesion to the mold seat, violent ejection can easily cause the mold to wear or even damage, affecting the subsequent use of the mold. Therefore, a precision die-casting mold based on magnesium alloy material is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A precision die-casting mold based on magnesium alloy material, comprising a base with four legs fixedly connected at the bottom, a workbench with an inner cavity fixedly connected at the top of the base, a top plate arranged above the workbench, a die-casting model and a mold seat arranged on opposite sides of the workbench and the top plate, a controller fixedly installed on the workbench, a placement opening opened at the bottom of the mold seat, a fixing structure for clamping and fixing the mold seat arranged on the workbench, a demoulding structure for facilitating demoulding of the mold in the mold seat arranged on the workbench, and a cooling structure for cooling the mold seat to assist demoulding arranged on the base;

[0007] A baffle is movably installed in the placement port, a driving structure for driving the top plate to move vertically is arranged on the workbench, and a mounting structure for fixing the die-casting model is arranged on the top plate.

[0008] Preferably, the driving structure includes a horizontal plate fixedly connected to the two vertical side walls of the workbench, a cylinder 1 is fixedly connected to the horizontal plate, and the output ends of the tops of the two cylinders 1 are fixedly connected to the top plate.

[0009] Preferably, the cooling structure includes a motor 1 fixedly connected to the top of the base, an output end of the top of the motor 1 is fixedly connected to a fan blade, and the fan blade rotates in the inner cavity of the workbench.

[0010] Preferably, the demoulding structure comprises a moving frame slidably connected to the inner cavity of the workbench, a pair of vertical plates are fixedly connected to the top of the moving frame, a rotating rod is rotatably connected to the opposite sides of the two vertical plates, a motor 2 for driving the rotating rod to rotate is fixedly connected to the vertical plate, a concave frame is vertically slidably connected to the moving frame, a top rod is fixedly connected to the top of the concave frame, a rack is fixedly connected to the concave frame, a half gear is fixedly sleeved at the middle of the axis of the rotating rod, and the gear on the half gear is meshingly connected to the rack;

[0011] The workbench is provided with a driving member for driving the movable frame to move vertically.

[0012] Preferably, the driving member includes a slide groove one opened on the workbench to facilitate the sliding of the movable frame, a screw is rotatably connected in the slide groove one, and the screw and the movable frame are threadedly connected, and the top of the screw extends to above the workbench and is fixedly connected to a rotating handle seat.

[0013] Preferably, the fixed structure includes four mounting seats fixedly connected to the workbench, a slide groove 2 is opened on the top of the mounting seat, a cylinder 2 is fixedly connected in the slide groove 2, a movable plate is fixedly connected to the output end of the cylinder 2, and the movable plate and the slide groove 2 are slidably connected, a cross bar is fixedly connected to the movable plate, and a clamping block is fixedly connected to one end of the cross bar close to the mold seat, and the clamping block abuts against the outer wall of the mold seat.

[0014] Preferably, the mounting structure comprises a pair of vertical rods fixedly connected to the bottom of the top plate, the bottoms of the two vertical rods are fixedly connected with mounting plates, and the mounting plates and the die-casting model are fixedly mounted by means of fastening bolts.

[0015] Preferably, the baffle and the placement opening are matched, and the placement opening is designed as an inverted "convex" structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets a cooling structure, and the motor with fan blades fixedly connected to the top output end is fixedly connected to the base. After the die casting of the mold is completed, the motor drives the fan blades to rotate to reduce the temperature in the mold base, thereby making it easier to demold the subsequent mold.

[0018] 2. The present invention sets up a demoulding structure, wherein the movable frame and the screw are threadedly connected, the gear surface of the half gear fixedly sleeved on the rotating rod is meshed with the rack on the concave frame, and the second motor is used to drive the rotating rod to rotate. Under the action of the rotation of the rotating rod, the cooperation of the half gear and the rack makes the push rod at the top of the concave frame reciprocate in the vertical direction to push the baffle, so that the mold and the mold seat are gradually separated, and the rotation of the screw makes the push rod slowly move upward, thereby separating the mold from the mold seat, realizing the demoulding work of the mold, and not easily damaging the mold.

[0019] 3. The present invention sets a fixed structure, and the movable plate is fixedly connected to the output end of the second cylinder. The movable plate and the clamping block are connected by a cross bar. The staff can adjust the positions of the four clamping blocks accordingly according to the size of the actual mold base, so that the four clamping blocks can fix and clamp the mold base, thereby improving the overall applicability of the device.

[0020] 4. The present invention sets up a mounting structure, a pair of vertical rods are fixedly connected to the bottom of the top plate, the same mounting plate is fixedly connected to the bottom of the two vertical rods, and the mounting plate is fixedly installed with the die-casting mold by fastening bolts. Therefore, when the staff replaces different mold seats, the die-casting model can be replaced accordingly, ensuring the progress of the die-casting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a precision die-casting mold based on magnesium alloy material proposed by the present invention;

[0022] Figure 2 This is an internal cross-sectional view of a workbench in a precision die-casting mold based on magnesium alloy material proposed by the present invention;

[0023] Figure 3 A three-dimensional diagram of a demoulding structure in a precision die-casting mold based on a magnesium alloy material proposed by the present invention;

[0024] Figure 4 A three-dimensional diagram of a fixing structure in a precision die-casting mold based on magnesium alloy material proposed by the present invention;

[0025] Figure 5 A three-dimensional diagram of an installation structure in a precision die-casting mold based on a magnesium alloy material proposed by the present invention;

[0026] Figure 6This is an internal cross-sectional view of a die seat in a precision die-casting die based on magnesium alloy material proposed by the present invention.

[0027] In the figure: 1. base; 2. workbench; 3. horizontal plate; 4. cylinder 1; 5. top plate; 6. controller; 7. die-casting model; 8. mold base; 9. motor 1; 10. fan blade; 11. movable frame; 12. screw; 13. rotating handle seat; 14. concave frame; 15. top rod; 16. vertical plate; 17. rotating rod; 18. motor 2; 19. rack; 20. half gear; 21. mounting seat; 22. cylinder 2; 23. movable plate; 24. horizontal rod; 25. clamping block; 26. vertical rod; 27. mounting plate; 28. placement port; 29. ​​baffle; 30. slide 1; 31. slide 2. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-Figure 6 , a precision die-casting mold based on magnesium alloy material, including a base 1 with four legs fixedly connected at the bottom, a workbench 2 with an inner cavity fixedly connected at the top of the base 1, a top plate 5 is arranged above the workbench 2, a die-casting model 7 and a mold seat 8 are arranged on the opposite sides of the workbench 2 and the top plate 5, a controller 6 is fixedly installed on the workbench 2, a placement port 28 is opened at the bottom of the mold seat 8, a fixing structure for clamping and fixing the mold seat 8 is arranged on the workbench 2, a demolding structure for facilitating demolding of the mold in the mold seat 8 is arranged on the workbench 2, and a cooling structure for cooling the mold seat 8 to assist demolding is arranged on the base 1; the four legs ensure the stability of the entire structure; the high-precision controller 6 is responsible for regulating various parameters in the die-casting process; the fixing structure can clamp and fix the mold seat 8 to prevent displacement during high-pressure injection or cooling; the cooling structure cools the mold seat 8, thereby shortening the cooling time of the product, assisting in rapid demolding, and greatly improving the overall production efficiency;

[0030] A baffle 29 is movably installed in the placement opening 28 , a driving structure for driving the top plate 5 to move vertically is arranged on the workbench 2 , and a mounting structure for fixing the die-casting model 7 is arranged on the top plate 5 .

[0031] The driving structure includes a horizontal plate 3 fixedly connected to two vertical side walls of the workbench 2, a cylinder 4 fixedly connected to the horizontal plate 3, and the output ends of the tops of the two cylinders 4 are fixedly connected to the top plate 5. The arrangement of the two cylinders 4 facilitates the vertical movement of the top plate 5 to adapt to the diversified production needs under different magnesium alloy materials and different product requirements;

[0032] The cooling structure includes a motor 9 fixedly connected to the top of the base 1, and a fan blade 10 is fixedly connected to the output end of the top of the motor 9, and the fan blade 10 rotates in the inner cavity of the workbench 2. The fan blade 10 is arranged in the inner cavity of the workbench 2. This design enables the fan blade 10 to provide a maximum wind flow coverage area in a limited space, thereby optimizing the cooling effect; when the fan blade 10 rotates, a strong airflow is generated, and the airflow is directed to the mold base 8 and the magnesium alloy product that has just been die-cast, quickly taking away the heat, accelerating the cooling process of the mold and the product, thereby shortening the overall cycle time and improving production efficiency;

[0033] The demoulding structure includes a moving frame 11 slidably connected to the inner cavity of the workbench 2, a pair of vertical plates 16 are fixedly connected to the top of the moving frame 11, and a rotating rod 17 is rotatably connected to the opposite sides of the two vertical plates 16, and a motor 18 for driving the rotating rod 17 to rotate is fixedly connected to the vertical plate 16, a concave frame 14 is vertically slidably connected to the moving frame 11, a push rod 15 is fixedly connected to the top of the concave frame 14, and a rack 19 is fixedly connected to the concave frame 14, a half gear 20 is fixedly sleeved at the middle of the axis of the rotating rod 17, and the gear on the half gear 20 is meshed with the rack 19; the push rod 15 directly acts on the baffle 29 in the mold seat 8 during the demoulding process, thereby acting on the magnesium-aluminum alloy material;

[0034] The workbench 2 is provided with a driving member for driving the moving frame 11 to move vertically.

[0035] The driving member includes a slide groove 30 opened on the workbench 2 to facilitate the sliding of the movable frame 11. A screw rod 12 is rotatably connected in the slide groove 30, and the screw rod 12 is threadedly connected to the movable frame 11. The top of the screw rod 12 extends above the workbench 2 and is fixedly connected to a rotating handle seat 13.

[0036] The fixed structure includes four mounting seats 21 fixedly connected to the workbench 2, a slide groove 21 is opened on the top of the mounting seat 21, a cylinder 22 is fixedly connected in the slide groove 21, a movable plate 23 is fixedly connected to the output end of the cylinder 22, and the movable plate 23 and the slide groove 21 are slidably connected, a cross bar 24 is fixedly connected to the movable plate 23, and a clamping block 25 is fixedly connected to one end of the cross bar 24 close to the mold seat 8, and the clamping block 25 is abutted against the outer wall of the mold seat 8.

[0037] The mounting structure includes a pair of vertical rods 26 fixedly connected to the bottom of the top plate 5, and a mounting plate 27 is fixedly connected to the bottom of the two vertical rods 26, and the mounting plate 27 and the die-casting model 7 are fixedly mounted by fastening bolts.

[0038] The baffle plate 29 is matched with the placement opening 28, and the placement opening 28 is designed as an inverted "convex" structure.

[0039] The present invention can be explained by the following operation mode:

[0040] When using the device, first, place the mold base 8 to be used on the opposite sides of the four clamping blocks 25, and start the four cylinders 22 respectively. The cylinders 22 drive the moving plate 23 to move horizontally, and the moving plate 23 drives the crossbar 24 and the clamping blocks 25 to move horizontally. The clamping blocks 25 clamp the fixed mold base 8.

[0041] Then, the magnesium-aluminum alloy material is poured into the mold base 8, and the cylinder 1 4 is started, and the cylinder 1 4 drives the top plate 5, the vertical rod 26, the mounting plate 27 and the die-casting model 7 fixed by the fastening bolts to move vertically downward to die-cast the magnesium alloy material; after the die-casting is completed, the die-casting model 7 is reset under the action of the cylinder 1 4;

[0042] The motor 9 in the cooling structure is started, and the motor 9 drives the fan blade 10 to rotate. When the fan blade 10 rotates, a strong airflow is generated, and the airflow is directed to the mold base 8 and the magnesium alloy product that has just been die-cast, which quickly takes away the heat and accelerates the cooling process of the mold and the product, thereby shortening the overall cycle time and improving production efficiency;

[0043] Finally, the demoulding work is carried out, and the motor 2 18 is started. The motor 2 18 drives the rotating rod 17 to rotate, and the rotating rod 17 drives the half gear 20 to rotate. The half gear 20 drives the rack 19 to reciprocate up and down in the vertical direction, thereby driving the concave frame 14 and the push rod 15 to reciprocate vertically; at the same time, the staff manually rotates the rotating handle seat 13, and the rotating handle seat 13 drives the screw 12 to rotate, and the screw 12 drives the moving frame 11 to move upward, thereby gradually separating the mold and the mold seat 8. The rotation of the screw 12 causes the push rod 15 to slowly move upward, thereby separating the mold from the mold seat 8, realizing the demoulding work of the mold, and it is not easy to damage the mold.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision die-casting mold based on magnesium alloy material, comprising a base (1) with four legs fixedly connected to the bottom, a workbench (2) with an inner cavity fixedly connected to the top of the base (1), a top plate (5) arranged above the workbench (2), a die-casting model (7) and a mold seat (8) arranged on opposite sides of the workbench (2) and the top plate (5), a controller (6) fixedly installed on the workbench (2), characterized in that: The bottom of the mold seat (8) is provided with a placement opening (28); the workbench (2) is provided with a fixing structure for clamping and fixing the mold seat (8); the workbench (2) is provided with a demoulding structure for facilitating demoulding of the mold in the mold seat (8); and the base (1) is provided with a cooling structure for cooling the mold seat (8) to assist demoulding; A baffle (29) is movably installed in the placement opening (28); a driving structure for driving the top plate (5) to move vertically is provided on the workbench (2); and a mounting structure for fixing the die-casting model (7) is provided on the top plate (5); The demoulding structure comprises a moving frame (11) slidably connected to the inner cavity of the workbench (2), a pair of vertical plates (16) being fixedly connected to the top of the moving frame (11), a rotating rod (17) being rotatably connected to the opposite sides of the two vertical plates (16), a second motor (18) being fixedly connected to the vertical plate (16) for driving the rotating rod (17) to rotate, a concave frame (14) being vertically slidably connected to the moving frame (11), a top rod (15) being fixedly connected to the top of the concave frame (14), a rack (19) being fixedly connected to the concave frame (14), a half gear (20) being fixedly sleeved at the middle of the axis of the rotating rod (17), and a gear on the half gear (20) being meshingly connected to the rack (19); The workbench (2) is provided with a driving member for driving the movable frame (11) to move vertically.

2. The precision die-casting mold based on magnesium alloy material according to claim 1, characterized in that: The driving structure comprises a horizontal plate (3) fixedly connected to two vertical side walls of the workbench (2), a cylinder one (4) being fixedly connected to the horizontal plate (3), and output ends at the tops of the two cylinders one (4) are fixedly connected to the top plate (5).

3. The precision die-casting mold based on magnesium alloy material according to claim 1, characterized in that: The cooling structure comprises a motor 1 (9) fixedly connected to the top of the base (1), a fan blade (10) being fixedly connected to the output end of the top of the motor 1 (9), and the fan blade (10) rotating in the inner cavity of the workbench (2).

4. The precision die-casting mold based on magnesium alloy material according to claim 1, characterized in that: The driving member comprises a slide groove (30) provided on the workbench (2) for facilitating the sliding of the movable frame (11); a screw rod (12) is rotatably connected in the slide groove (30); the screw rod (12) and the movable frame (11) are threadedly connected; the top of the screw rod (12) extends above the workbench (2) and is fixedly connected to a rotating handle seat (13).

5. The precision die-casting mold based on magnesium alloy material according to claim 1, characterized in that: The fixed structure comprises four mounting seats (21) fixedly connected to the workbench (2), a second slide groove (31) is provided on the top of the mounting seat (21), a second cylinder (22) is fixedly connected inside the second slide groove (31), a movable plate (23) is fixedly connected to the output end of the second cylinder (22), and the movable plate (23) and the second slide groove (31) are slidably connected, a cross bar (24) is fixedly connected to the movable plate (23), and a clamping block (25) is fixedly connected to one end of the cross bar (24) close to the mold seat (8), and the clamping block (25) and the outer wall of the mold seat (8) are abutted against each other.

6. The precision die-casting mold based on magnesium alloy material according to claim 1, characterized in that: The mounting structure comprises a pair of vertical rods (26) fixedly connected to the bottom of the top plate (5), a mounting plate (27) fixedly connected to the bottom of the two vertical rods (26), and the mounting plate (27) and the die-casting model (7) are fixedly mounted by means of fastening bolts.

7. The precision die-casting mold based on magnesium alloy material according to claim 1, characterized in that: The baffle (29) is matched with the placement opening (28), and the placement opening (28) is designed as an inverted "convex" structure.

Images