A die device for extrusion casting of deformed aluminum alloy ingots

Abstract

This utility model discloses a die device for extrusion casting of deformable aluminum alloy ingots, including a worktable, a lower die at one end of the lower surface of the inner wall of the worktable, and an upper die correspondingly arranged at the upper end of the lower die. A tight-fitting assembly is provided inside the lower die, and a hydraulic cylinder is provided at one end of the upper surface of the inner wall of the worktable, with its extension connected to one end of the upper die. This utility model can effectively avoid flash problems, improve the sealing effect of the parting surface, and promptly expel gas, thereby improving the strength of the finished product.

Description

Technical Field

[0001] This utility model belongs to the field of casting mold technology, and specifically relates to a device for extruding and casting molds for deformed aluminum alloy ingots. Background Technology

[0002] In the field of metal processing, wrought aluminum alloys are widely used in aerospace, automobile manufacturing, electronic equipment and many other fields due to their good mechanical properties and processing performance.

[0003] Traditional casting methods often result in castings with porous internal structures and numerous porosity defects, leading to unsatisfactory density and mechanical properties. Extrusion casting, however, applies high pressure to the molten metal during the casting process, causing it to solidify under pressure. This effectively improves the internal structure of the casting, enhancing its density and mechanical properties.

[0004] However, most extrusion casting equipment currently suffers from insufficient sealing of the parting surface, which easily leads to flash problems during use, affecting the molding quality. Furthermore, the inability of gas to escape in a timely manner results in numerous pores in the castings, which in turn leads to low molding strength. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a deformable aluminum alloy ingot extrusion casting mold device, so as to solve the technical defects of existing extrusion casting mold devices, such as insufficient sealing of the parting surface resulting in flash, inability to expel gas in time leading to many pores and low forming strength.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A die-casting apparatus for extruding aluminum alloy ingots includes a worktable, a lower die at one end of the lower surface of the inner wall of the worktable, an upper die at the upper end of the lower die, a tight assembly inside the lower die, and a hydraulic cylinder at one end of the upper surface of the inner wall of the worktable, with the extended end of the hydraulic cylinder connected to one end of the upper die.

[0008] The upper surface of the lower mold is provided with a cavity for extruding and casting wrought aluminum alloy ingots. The cavity is used to place semi-solid wrought aluminum alloy ingots. The contact surface between the upper mold and the lower mold is a parting surface. The edge of the parting surface is provided with a shallow groove. The shallow groove is provided with an exhaust hole. The exhaust hole extends to the outside of the lower mold.

[0009] As a further embodiment of this utility model, wedge-shaped grooves are provided on both sides of the upper surface of the upper mold, and electric push rods are provided at both ends of the hydraulic cylinder. The electric push rods are installed at one end of the upper surface of the inner wall of the worktable.

[0010] As a further embodiment of this utility model, the electric push rod piston rod is connected to a wedge block, which can be inserted into a wedge groove.

[0011] As a further embodiment of this utility model, the tight assembly includes a rectangular groove and a frame plate. The rectangular groove is opened at one end of the upper surface of the lower mold, and there is a certain gap between the rectangular groove and the shallow groove. The frame plate is located inside the rectangular groove.

[0012] As a further embodiment of this utility model, multiple sets of springs are provided on the lower surface of the inner wall of the rectangular groove, and the multiple sets of springs are arranged in a rectangular shape and located at the four corners of the rectangular groove. A damper is connected to one end of the upper surface of each set of springs.

[0013] As a further embodiment of this utility model, multiple sets of dampers are respectively installed on one end of the lower surface of the frame plate, and a sealing strip is fixedly bonded to the upper surface of the frame plate.

[0014] Compared with the prior art, the extrusion casting mold device for deformed aluminum alloy ingots provided by this utility model has the following beneficial effects: the device can effectively avoid flash problems during use, effectively improve the sealing effect of the parting surface, and can timely discharge gas, thereby improving the strength of the finished product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the electric push rod in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the shallow groove in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the compact component in an embodiment of this utility model.

[0020] Figure label:

[0021] 1. Workbench;

[0022] 2. Hydraulic cylinder; 201. Upper mold; 202. Wedge groove; 203. Lower mold; 204. Electric push rod; 205. Wedge block; 206. Extrusion casting cavity for deformed aluminum alloy ingots;

[0023] 3. Tight assembly; 301. Frame plate; 302. Sealing strip; 303. Damper; 304. Spring; 305. Rectangular groove;

[0024] 4. Shallow groove; 401. Vent hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0027] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0028] See appendix Figures 1-4 As shown in the figure, an embodiment of the present invention provides a mold device for extruding and casting deformable aluminum alloy ingots, including a workbench 1, a lower mold 203 is provided at one end of the lower surface of the inner wall of the workbench 1, an upper mold 201 is correspondingly provided at the upper end of the lower mold 203, a tight assembly 3 is provided inside the lower mold 203, and a hydraulic cylinder 2 is provided at one end of the upper surface of the inner wall of the workbench 1, with the extended end of the hydraulic cylinder 2 connected to one end of the upper mold 201.

[0029] The upper surface of the lower mold 203 is provided with a deformed aluminum alloy ingot extrusion casting cavity 206, which is used to place a semi-solid deformed aluminum alloy ingot. The contact surface between the upper mold 201 and the lower mold 203 is a parting surface. The edge of the parting surface is provided with a shallow groove 4, and the shallow groove 4 is provided with an exhaust hole 401. The exhaust hole 401 extends to the outside of the lower mold 203.

[0030] The upper mold 201 has wedge-shaped grooves 202 on both sides of its upper surface, and the hydraulic cylinder 2 has electric push rods 204 at both ends. The electric push rods 204 are installed at one end of the upper surface of the inner wall of the worktable 1. The piston rod of the electric push rod 204 is connected to a wedge block 205, which can be inserted into the wedge-shaped groove 202.

[0031] In the above technical solution, a shallow groove 4 is provided at the edge of the parting surface, and an exhaust hole 401 is opened in the shallow groove 4 and extends to the outside. During extrusion casting, the air in the extrusion casting cavity 206 of the deformed aluminum alloy ingot is discharged to the outside side of the lower mold 203 through the exhaust hole 401 in the shallow groove 4 at the edge of the parting surface, so as to ensure the forming quality of the aluminum alloy ingot and avoid defects such as porosity during the forming process of the aluminum alloy ingot. Furthermore, the depth of the shallow groove 4 is 0.05-0.1mm, which allows gas to pass through the semi-solid metal, making it convenient to use a deformed aluminum alloy ingot extrusion casting mold device.

[0032] Through the design of electric push rod 204 and hydraulic cylinder 2, the semi-solid deformed aluminum alloy ingot is placed in the deformed aluminum alloy ingot extrusion casting cavity 206 of the lower mold 203. Then, the extension end of the hydraulic cylinder 2 pushes the upper mold 201 to move downward until the upper mold 201 and the parting surface of the lower mold 203 are pressed together. Afterward, the piston rod of the electric push rod 204 drives the wedge block 205 to descend and insert into the wedge groove 202 provided on the upper surface of the upper mold 201. This can enhance the stability of the mold, prevent the mold from loosening and affecting the quality of the aluminum alloy product, and ensure the stability of the forming. Then, the tight component 3 can effectively prevent overflow from the parting surface during extrusion, thereby reducing the flash problem.

[0033] See appendix Figures 3 to 4 As shown, the tight assembly 3 includes a rectangular groove 305 and a frame plate 301. The rectangular groove 305 is formed at one end of the upper surface of the lower mold 203, and there is a certain gap between the rectangular groove 305 and the shallow groove 4. The frame plate 301 is located inside the rectangular groove 305. Multiple sets of springs 304 are provided on the lower surface of the inner wall of the rectangular groove 305. The multiple sets of springs 304 are arranged in a rectangular shape and located at the four corners of the rectangular groove 305. A damper 303 is connected to one end of the upper surface of each set of springs 304. The multiple sets of dampers 303 are respectively installed at one end of the lower surface of the frame plate 301. A sealing strip 302 is fixedly bonded to the upper surface of the frame plate 301.

[0034] To reduce flash during product molding, the upper mold 201 is used to press and adhere the material to the surface of the frame plate 301. The spring 304 drives the material to descend. After the upper mold 201 and the lower mold 203 are pressed and adhered, the spring 304 rebounds, preventing leakage of the sealing strip 302 bonded to the upper surface of the frame plate 301. This avoids mold damage and product defects caused by overflow and reduces the occurrence of low extrusion molding strength.

[0035] In this embodiment of the invention, a semi-solid deformed aluminum alloy ingot is placed in the extrusion casting cavity 206 of the lower mold 203. The extension end of the hydraulic cylinder 2 pushes the upper mold 201 downward until the upper mold 201 and the parting surface of the lower mold 203 are pressed together. The piston rod of the electric push rod 204 drives the wedge block 205 to descend and insert into the wedge groove 202 provided on the upper surface of the upper mold 201, thereby enhancing the stability of the mold, preventing the mold from loosening and affecting the quality of the aluminum alloy product, and ensuring the forming process. For stability, the upper mold 201 is pressed and adhered to the surface of the frame plate 301, and is driven to descend by the spring 304. After the upper mold 201 and the lower mold 203 are pressed and adhered, the spring 304 rebounds, so that the sealing strip 302 bonded to the upper surface of the frame plate 301 prevents the aluminum alloy liquid from leaking, avoiding mold damage and product defects caused by overflow. During extrusion casting, the air in the extrusion casting cavity 206 of the deformed aluminum alloy ingot is discharged to the outside side of the lower mold 203 through the exhaust hole 401 in the shallow groove 4 at the edge of the parting surface.

[0036] In summary, the present invention can effectively avoid flash problems during use, effectively improve the sealing effect of the parting surface, and can timely discharge gas, thereby improving the strength of the finished product.

[0037] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for forming a die for extrusion casting of a wrought aluminium alloy ingot, comprising a worktable (1), characterised in that: The workbench (1) has a lower mold (203) at one end of the lower inner wall surface, and an upper mold (201) is correspondingly provided at the upper end of the lower mold (203). The lower mold (203) has a tight assembly (3) inside, and a hydraulic cylinder (2) is provided at one end of the upper inner wall surface of the workbench (1). The extension end of the hydraulic cylinder (2) is connected to one end of the upper mold (201). The upper surface of the lower mold (203) is provided with a deformable aluminum alloy ingot extrusion casting forming cavity (206). The contact surface between the upper mold (201) and the lower mold (203) is a parting surface. The edge of the parting surface is provided with a shallow groove (4). The shallow groove (4) is provided with an exhaust hole (401). The exhaust hole (401) extends to the outside of the lower mold (203). The tight assembly (3) includes a rectangular groove (305) and a frame plate (301). The rectangular groove (305) is opened at one end of the upper surface of the lower mold (203), and there is a certain gap between the rectangular groove (305) and the shallow groove (4). The frame plate (301) is located inside the rectangular groove (305). Multiple sets of springs (304) are provided on the lower surface of the inner wall of the rectangular groove (305), and the multiple sets of springs (304) are arranged in a rectangular shape and located at the four corners of the rectangular groove (305). A damper (303) is connected to one end of the upper surface of each set of springs (304).

2. The apparatus for extrusion casting forming a wrought aluminum alloy ingot according to claim 1, characterized in that: The upper mold (201) has wedge grooves (202) on both sides of its upper surface, and the hydraulic cylinder (2) has electric push rods (204) at both ends. The electric push rods (204) are installed on one end of the upper surface of the inner wall of the worktable (1).

3. The apparatus according to claim 2, wherein: The piston rod of the electric push rod (204) is connected to a wedge block (205), which can be inserted into the wedge groove (202).

4. A device for extrusion casting forming of a wrought aluminium alloy ingot according to any one of claims 1-3, characterized in that: Multiple sets of dampers (303) are respectively installed on one end of the lower surface of the frame plate (301), and a sealing strip (302) is fixedly bonded to the upper surface of the frame plate (301).

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