A semi-solid aluminum alloy die casting rapid trimming die

Abstract

The utility model discloses a kind of semi-solid aluminum alloy die casting fast trimming die, including upper die holder and lower die holder, the bottom surface of the upper die holder is provided with at least one T-shaped guide slot, replaceable wear-resistant bushing is embedded in the T-shaped guide slot, cutter assembly is provided in the T-shaped guide slot, the cutter assembly is made of multiple independent modularized blades, the top of the modularized blade is fixedly connected with the T-shaped slider matched with T-shaped guide slot, the modularized blade is embedded in T-shaped guide slot by T-shaped slider, the top surface of the lower die holder is installed with workpiece positioning seat.The utility model has the beneficial effects: through the design of modularized blade, the setting of flexible protective layer and the optimization design of waste collection cavity and flow guide, the problem of poor adaptability of traditional trimming die, fixed system mismatch is solved, avoid workpiece surface damage, realize waste fast collection, reach the purpose of high-efficiency cutting, waste collection is convenient.

Description

Technical Field

[0001] This utility model relates to the field of metal processing and mold manufacturing technology, specifically to a quick edge cutting mold for semi-solid aluminum alloy die castings. Background Technology

[0002] Semi-solid aluminum alloy die casting technology is a novel forming process developed in recent years. By controlling the flow characteristics of aluminum alloy in a semi-solid state during die casting, the density and mechanical properties of parts can be significantly improved. Studies have shown that the semi-solid rheological die casting process can achieve a stable laminar flow state of the alloy liquid in the pressure chamber, avoiding turbulence and thus obtaining die castings with no internal porosity defects and excellent surface quality. However, despite the higher dimensional accuracy and better performance of semi-solid aluminum alloy die castings, flash, overflow, and gate defects are still unavoidable after forming, requiring subsequent removal.

[0003] Currently, edge trimming of die-cast parts mainly relies on traditional methods, such as cutting machines, band saws, or manual hammering to remove slag pockets and gates. These methods are not only inefficient and time-consuming, but also fail to guarantee product consistency and quality stability. Furthermore, existing trimming dies are mostly designed for ordinary die-cast aluminum alloys and do not fully consider the unique characteristics of semi-solid aluminum alloy die-cast parts, easily leading to product deformation or rough cuts during the trimming process. Simultaneously, because semi-solid aluminum alloy die-cast parts have higher requirements for dimensional accuracy and surface quality, conventional positioning seats are prone to damaging their surfaces when supporting the workpiece, and their fixing effect is unsatisfactory, further affecting processing quality and efficiency. In addition, the collection of small scrap pieces generated during the trimming process is inconvenient, not only reducing work efficiency but also adversely affecting the production environment.

[0004] Therefore, developing a rapid trimming mold that can adapt to the characteristics of semi-solid aluminum alloy die castings to achieve efficient and precise trimming operations, and to solve problems such as waste collection and workpiece fixation, has significant practical value and application prospects. Utility Model Content

[0005] The present invention aims to solve the problems of inefficient cutting and inconvenient waste collection mentioned in the background art, and provides a high-efficiency cutting and convenient waste collection semi-solid aluminum alloy die casting quick edge cutting mold.

[0006] A quick trimming mold for semi-solid aluminum alloy die castings includes an upper mold base and a lower mold base mounted on a press. The upper mold base is slidably connected to the press, and the lower mold base is fixedly connected to the press. The bottom surface of the upper mold base is provided with at least one T-shaped guide groove. A replaceable wear-resistant bushing is embedded in the T-shaped guide groove. A cutting blade assembly is provided in the T-shaped guide groove. The cutting blade assembly consists of multiple independent modular blades. A T-shaped slider that mates with the T-shaped guide groove is fixed to the top of each modular blade. The modular blade is embedded in the T-shaped guide groove through the T-shaped slider. A workpiece positioning seat is installed on the top surface of the lower mold base.

[0007] By incorporating T-shaped guide grooves and modular blades, the blades can be flexibly replaced according to the shape and size of different die-cast parts, significantly improving the mold's adaptability. Replaceable wear-resistant bushings reduce wear on the guide grooves, extending the mold's lifespan. The workpiece positioning seat ensures the stability of the die-cast part during the trimming process; the workpiece positioning seat can also be flexibly replaced according to the shape and size of different die-cast parts, improving trimming accuracy and consistency. This achieves the goals of high connection strength and easy installation.

[0008] Preferably, the workpiece positioning seat is equipped with at least two positioning pins and multiple fastening bolts, and the workpiece positioning seat is installed on the top surface of the lower mold base by means of positioning pins and fastening bolts. Installing the workpiece positioning seat by positioning pins and fastening bolts provides a firm fixing method, preventing the workpiece positioning seat from shifting during high-pressure cutting, enhancing the reliability and safety of the mold, and facilitating the precise positioning and disassembly maintenance of the workpiece positioning seat.

[0009] Preferably, the surface of the workpiece positioning seat is provided with a mounting groove, and a flexible protective layer is embedded in the mounting groove. By providing a mounting groove and a flexible protective layer on the surface of the workpiece positioning seat, the die-cast part body is supported and protected. During the die-cast part placement and clamping process, the hard metal positioning seat is prevented from scratching or damaging the relatively soft aluminum alloy casting surface, thereby improving product quality and reducing the scrap rate. At the same time, the flexible protective layer is replaceable and easy to maintain.

[0010] Preferably, the lower mold base has a waste collection cavity inside, and a guide channel is formed on the side of the lower mold base. The guide channel is located below the cutting area, and the waste collection cavity is connected to the cutting area through the guide channel. The inclination angle of the guide channel is 30° to 45°, and the inner wall of the guide channel is coated with a low-friction coating. The design of the waste collection cavity and the inclined guide channel enables automatic collection and discharge of cutting waste, reducing manual cleaning time and improving production efficiency. The inclination angle of the guide channel and the low-friction coating ensure smooth flow of waste and prevent blockage.

[0011] Preferably, a pneumatic vibrator is installed on the side wall of the waste collection chamber, and a cleaning door is provided at the bottom of the waste collection chamber. The pneumatic vibrator promotes the flow and collection of waste, prevents waste from accumulating in the guide channel or chamber, ensures the stability of continuous production, reduces downtime, and the cleaning door facilitates quick waste removal and keeps the mold clean.

[0012] Preferably, a tapered set screw is fixed between the modular blade and the T-shaped slider, with the end of the tapered set screw pressing against the inner side of the T-shaped slider. Fixing the modular blade to the T-shaped slider with the tapered set screw enhances the lateral stability of the blade, prevents the blade from loosening or shifting during the cutting process, and improves cutting accuracy and tool life.

[0013] The beneficial effects of this utility model are as follows: By designing modular blades, setting flexible protective layers, and optimizing the design of waste collection chambers and flow guides, the problems of poor adaptability and mismatch of fixing systems in traditional edge cutting dies are solved. This simplifies installation and maintenance, avoids damage to the workpiece surface, and enables rapid waste collection, thereby improving production efficiency and edge cutting accuracy. It achieves the goals of efficient cutting and convenient waste collection. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic front view of the structure of this utility model;

[0016] Figure 2 A top view of the flexible protective layer being installed in the positioning mold;

[0017] Figure 3 This is a sectional view of the lower mold base;

[0018] Figure 4 This is a side view of the T-shaped guide groove;

[0019] Figure 5 This is a side sectional view of the connection between the T-shaped slider and the modular blade.

[0020] Among them, 1. Upper mold base, 11. T-shaped guide groove, 12. Wear-resistant bushing, 13. T-shaped slider, 2. Lower mold base, 21. Waste collection cavity, 22. Flow guide groove, 23. Low friction coating, 24. Pneumatic vibrator, 25. Cleaning door, 3. Cutting blade assembly, 31. Modular blade, 4. Workpiece positioning seat, 41. Positioning pin, 42. Fastening bolt, 43. Mounting groove, 44. Flexible protective layer, 5. Conical end set screw, 6. Press. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to the embodiments.

[0022] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and "vertical" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Furthermore, in the description of this utility model, unless otherwise stated, "multiple", "multiple groups", and "multiple roots" mean two or more.

[0025] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0026] like Figure 1 and Figure 4 As shown, a quick edge trimming mold for semi-solid aluminum alloy die casting includes an upper mold base 1 and a lower mold base 2 mounted on a press 6. The upper mold base 1 is slidably connected to the press 6, and the lower mold base 2 is fixedly connected to the press 6. The bottom surface of the upper mold base 1 is provided with at least one T-shaped guide groove 11. A replaceable wear-resistant bushing 12 is embedded in the T-shaped guide groove 11. A cutting blade assembly 3 is provided in the T-shaped guide groove 11. The cutting blade assembly 3 is composed of multiple independent modular blades 31. A T-shaped slider 13 that cooperates with the T-shaped guide groove 11 is fixedly connected to the top of the modular blade 31. The modular blade 31 is embedded in the T-shaped guide groove 11 through the T-shaped slider 13. A workpiece positioning seat 4 is installed on the top surface of the lower mold base 2.

[0027] like Figure 2 As shown, at least two positioning pins 41 and multiple fastening bolts 42 are installed on the workpiece positioning seat 4. The workpiece positioning seat 4 is installed on the top surface of the lower mold base 2 by the positioning pins 41 and fastening bolts 42.

[0028] The surface of the workpiece positioning seat 4 is provided with a mounting groove 43, and a flexible protective layer 44 is embedded in the mounting groove 43.

[0029] like Figure 3 As shown, a waste collection cavity 21 is provided inside the lower mold base 2, and a guide groove 22 is provided on the side of the lower mold base 2. The guide groove 22 is located below the cutting edge area. The waste collection cavity 21 is connected to the cutting edge area through the guide groove 22. The inclination angle of the guide groove 22 is 30° to 45°, and the inner wall of the guide groove 22 is coated with a low friction coating 23.

[0030] A pneumatic vibrator 24 is installed on the side wall of the waste collection chamber 21, and a cleaning door 25 is opened at the bottom of the waste collection chamber 21.

[0031] like Figure 5 As shown, a tapered set screw 5 is fixed between the modular blade 31 and the T-shaped slider 13, and the end of the tapered set screw 5 is pressed against the inner side of the T-shaped slider 13.

[0032] One embodiment of this utility model:

[0033] like Figure 1 and Figure 2 As shown, the upper mold base 1 and the lower mold base 2 are made of high-strength steel. The bottom surface of the upper mold base 1 has two T-shaped guide grooves 11, each containing a replaceable wear-resistant bushing 12 (made of cemented carbide). The cutting assembly 3 consists of four independent modular blades 31 (made of high-speed steel), each blade having a T-shaped slider 13 bolted to its top, which is embedded in the T-shaped guide groove 11. The modular blades 31 and the T-shaped sliders 13 are laterally locked together by tapered set screws 5. The top surface of the lower mold base 2 is fitted with a workpiece positioning seat 4 via at least two positioning pins 41 and four fastening bolts 42. The workpiece positioning seat 4 has a mounting groove 43 on its surface, within which a flexible polyurethane protective layer 44 is embedded. The lower mold base 2 has a waste collection chamber 21 inside, which is connected to the cutting area via a guide channel 22 with an inclination angle of 40°. The inner wall of the guide channel 22 is coated with a polytetrafluoroethylene low-friction coating 23. A pneumatic vibrator 24 is installed on the side wall of the waste collection chamber 21, and a hinged cleaning door 25 is provided at the bottom.

[0034] Operating Procedure: Place the semi-solid aluminum alloy die-cast part into the workpiece positioning seat 4. The flexible protective layer 44 adheres to the workpiece surface to prevent scratches. Start the press 6, and the upper mold seat 1 descends, aligning the cutting blade assembly 3 with the flash area of ​​the workpiece. The modular blade 31 moves smoothly under the guidance of the T-shaped guide groove 11 to cut the flash. The stroke and length of the cutting blade assembly 3 are precisely calculated, ensuring that its cutting edge only reaches the flash, gate, or overflow groove that needs to be removed from the die-cast part. The cut waste slides along the guide groove 22 into the waste collection chamber 21. The pneumatic vibrator 24 is activated every 5 minutes, vibrating for 10 seconds to ensure that the waste completely falls to the bottom of the chamber. After cutting, the upper mold seat 1 rises, the workpiece is removed, and the cutting quality is checked.

[0035] After every 1000 workpieces are produced, open the cleaning door 25 to remove waste materials, and replace the modular blade 31 or wear-resistant bushing 12 according to the blade wear condition.

[0036] Results: This mold enables rapid edge trimming of die-cast parts with high precision, automatic waste collection, an increase in production efficiency of approximately 30%, and a 20% reduction in mold maintenance costs. It is suitable for automated production lines.

[0037] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick trimming mold for semi-solid aluminum alloy die castings, comprising an upper mold base (1) and a lower mold base (2) mounted on a press (6), characterized in that, The upper mold base (1) is slidably connected to the press (6), and the lower mold base (2) is fixedly connected to the press (6). The bottom surface of the upper mold base (1) is provided with at least one T-shaped guide groove (11). A replaceable wear-resistant bushing (12) is embedded in the T-shaped guide groove (11). A cutting blade assembly (3) is provided in the T-shaped guide groove (11). The cutting blade assembly (3) is composed of multiple independent modular blades (31). A T-shaped slider (13) that cooperates with the T-shaped guide groove (11) is fixedly connected to the top of the modular blade (31). The modular blade (31) is embedded in the T-shaped guide groove (11) through the T-shaped slider (13). A workpiece positioning seat (4) is installed on the top surface of the lower mold base (2).

2. The rapid edge trimming mold for semi-solid aluminum alloy die castings according to claim 1, characterized in that, At least two positioning pins (41) and multiple fastening bolts (42) are installed on the workpiece positioning seat (4). The workpiece positioning seat (4) is installed on the top surface of the lower mold base (2) by the positioning pins (41) and fastening bolts (42).

3. The rapid edge trimming mold for semi-solid aluminum alloy die castings according to claim 2, characterized in that, The side surface of the workpiece positioning seat (4) is provided with a mounting groove (43), and a flexible protective layer (44) is embedded in the mounting groove (43).

4. The rapid edge trimming mold for semi-solid aluminum alloy die castings according to claim 1, characterized in that, The lower mold base (2) has a waste collection cavity (21) inside, and a guide groove (22) is provided on the side of the lower mold base (2). The guide groove (22) is located below the cutting edge area. The waste collection cavity (21) is connected to the cutting edge area through the guide groove (22). The inclination angle of the guide groove (22) is 30° to 45°. The inner wall of the guide groove (22) is coated with a low friction coating (23).

5. A rapid trimming mold for semi-solid aluminum alloy die castings according to claim 4, characterized in that, A pneumatic vibrator (24) is installed on the side wall of the waste collection chamber (21), and a cleaning door (25) is opened at the bottom of the waste collection chamber (21).

6. The rapid edge trimming mold for semi-solid aluminum alloy die castings according to claim 1, characterized in that, A tapered set screw (5) is fixed between the modular blade (31) and the T-shaped slider (13), and the end of the tapered set screw (5) is pressed against the inner side of the T-shaped slider (13).

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