Forming die for boss of aluminum-based silicon carbide plate

Abstract

The utility model relates to the technical field of aluminum-based silicon carbide plate processing, in particular to a boss forming die of an aluminum-based silicon carbide plate, which comprises an upper die and a lower die, and an upper shaping core and a lower shaping core which correspond to each other are fixedly mounted on the upper die and the lower die respectively. And preheating mechanisms for heating the upper shaping core body and the lower shaping core body are arranged on the upper mold and the lower mold. The upper shaping core body is provided with the first heat generation wire and the first heat conduction wire, and the lower shaping core body is provided with the second heat generation wire and the second heat conduction wire, so that the temperature of the aluminum-based silicon carbide plate is raised to 220-240 DEG C, the aluminum-based silicon carbide plate is bent in a heating state to improve cracking, and the qualified rate of products is improved; the upper shaping core body and the lower shaping core body are correspondingly arranged, so that a shaping cavity used for bending and processing the aluminum-based silicon carbide plate is conveniently formed, and heat preservation plates wrapping the upper shaping core body and the lower shaping core body are arranged in the upper die and the lower die, so that the heat preservation effect of the upper die and the lower die is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-based silicon carbide plate processing, in particular to a boss forming die of the aluminum-based silicon carbide plate. Background Art

[0002] Aluminum-based silicon carbide plates, as the raw material for important components in electronic products such as mobile phones, have the significant advantages of high strength, high thermal conductivity and light weight. However, silicon carbide materials are highly brittle and easily crack when stretched, resulting in low product qualification rates.

[0003] Under existing conditions, direct extrusion shaping is often used when bending aluminum-based silicon carbide plates. However, the thin and light aluminum-based silicon carbide plates are very brittle at room temperature. Due to their thin and brittle structure, the plates are easily broken when the mold is stamped on the plates, affecting the product qualification rate. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that it is difficult to perform plastic processing on an aluminum-based silicon carbide plate, and proposes a boss forming die for an aluminum-based silicon carbide plate.

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

[0006] The boss forming mold of the aluminum-based silicon carbide plate includes an upper mold and a lower mold, on which corresponding upper shaping cores and lower shaping cores are fixedly installed respectively, and the upper mold and the lower mold are provided with preheating mechanisms for heating the upper shaping cores and the lower shaping cores.

[0007] Preferably, the upper mold and the lower mold are correspondingly distributed up and down.

[0008] Preferably, the upper shaping core is located at the lower end of the upper mold, and the lower shaping core is located at the upper end of the lower mold.

[0009] Preferably, the upper shaping core and the lower shaping core have corresponding surfaces integrally connected with staggered limiting end heads.

[0010] Preferably, a shaping cavity for placing the aluminum-based silicon carbide plate is formed between the upper mold and the lower mold through the upper shaping core and the lower shaping core.

[0011] Preferably, the preheating mechanism includes a first heat generating wire of an external power source, a first heat conducting wire, a second heat generating wire of an external power source, and a second heat conducting wire.

[0012] Preferably, the first heat generating wire is connected to one side of the upper shaping core, and the first heat conducting wire is connected to the same side of the upper shaping core;

[0013] The second heat generating wire is connected to one side of the lower shaping core, and the second heat conducting wire is connected to the other side of the lower shaping core.

[0014] Preferably, both the upper shaping core and the lower shaping core are covered with insulation boards.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The utility model sets a first heat generating wire and a first heat conducting wire on the upper shaping core, and sets a second heat generating wire and a second heat conducting wire on the lower shaping core. When the temperature of the aluminum-based silicon carbide plate rises to 220-240°C, the aluminum-based silicon carbide plate is bent in a heated state to improve cracking, thereby improving the product qualification rate.

[0017] 2. The utility model is provided with an upper shaping core and a lower shaping core to form a shaping cavity for bending aluminum-based silicon carbide plates, and an insulation plate covering the upper shaping core and the lower shaping core is provided in the upper mold and the lower mold to ensure the insulation effect of the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the boss forming die for the aluminum-based silicon carbide plate proposed in the present invention;

[0019] Figure 2 This is a bottom view of the boss forming die for the aluminum-based silicon carbide plate proposed in the present invention;

[0020] Figure 3 This is a front cross-sectional view of a boss forming die for an aluminum-based silicon carbide plate proposed in the present invention;

[0021] Figure 4 This is a top sectional view of the boss forming die for the aluminum-based silicon carbide plate proposed in the present invention;

[0022] Figure 5 This is a side sectional view of the boss forming die for the aluminum-based silicon carbide plate proposed in the present invention.

[0023] In the figure: 1. Upper mold; 2. Lower mold; 3. Upper shaping core; 4. Lower shaping core; 5. Shaping cavity; 6. First heat-generating wire; 7. First heat-conducting connection; 8. Second heat-generating wire; 9. Second heat-conducting connection; 10. Insulation board. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-Figure 5The boss forming mold of the aluminum-based silicon carbide plate includes an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 are respectively fixedly installed with corresponding upper shaping cores 3 and lower shaping cores 4. It should be noted that the upper shaping core 3 is a boss structure and the lower shaping core 4 is a groove structure. By driving the upper shaping core 3 to move vertically downward, pressure is applied to the aluminum-based silicon carbide plate located in the lower shaping core 4.

[0026] The upper mold 1 and the lower mold 2 are provided with a preheating mechanism for heating the upper shaping core 3 and the lower shaping core 4. Figure 1 With attached Figure 2 The preheating mechanism includes a first heat generating wire 6 connected to an external power source, a first heat conducting wire 7, a second heat generating wire 8 connected to an external power source, and a second heat conducting wire 9. By connecting the first heat generating wire 6 and the second heat generating wire 8 to the power source, the upper shaping core 3 and the lower shaping core 4 are heated synchronously, so that the temperature of the upper shaping core 3 and the lower shaping core 4 rises rapidly to 180-200°C. Then, the temperature is raised to 220-240°C through the first heat conducting wire 7 and the second heat conducting wire 9:

[0027] Further explanation:

[0028] First, the first heat-generating wire 6 is connected to one side of the upper shaping core 3, and the first heat-conducting wire 7 is connected to the same side of the upper shaping core 3, so as to heat the upper shaping core 3 and ensure that the upper shaping core 3 can pressurize and shape the upper end of the aluminum-based silicon carbide plate;

[0029] Secondly, the second heat-generating wire 8 is connected to one side of the lower shaping core 4, and the second heat-conducting wire 9 is connected to the other side of the lower shaping core 4, so as to heat the lower shaping core 4 and ensure that the lower shaping core 4 can pressurize and shape the lower end of the aluminum-based silicon carbide plate.

[0030] The upper die 1 and the lower die 2 are correspondingly distributed up and down.

[0031] The upper shaping core 3 is located at the lower end of the upper mold 1 , and the lower shaping core 4 is located at the upper end of the lower mold 2 .

[0032] The upper shaping core 3 and the lower shaping core 4 are integrally connected to the corresponding surfaces with staggered limiting ends, so that a shaping cavity 5 for placing the aluminum-based silicon carbide plate is formed between the upper mold 1 and the lower mold 2 through the upper shaping core 3 and the lower shaping core 4, while avoiding excessive extrusion of the aluminum-based silicon carbide plate by the upper shaping core 3 and the lower shaping core 4.

[0033] The upper shaping core 3 and the lower shaping core 4 are both covered with an insulation board 10. The insulation board 10 adopts a 匚-shaped groove structure and is embedded in the upper mold 1 and the lower mold 2 to fully wrap the upper shaping core 3 and the lower shaping core 4.

[0034] It should be noted that the specific model specifications of the upper mold 1 and the lower mold 2 need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0035] The functional principle of this utility model can be explained through the following operation modes:

[0036] The upper shaping core 3 is heated by the first heat generating wire 6 and the first heat conducting wire 7, while the lower shaping core 4 is heated by the second heat generating wire 8 and the second heat conducting wire 9;

[0037] An aluminum-based silicon carbide plate is placed in the shaping cavity 5 and is insulated by a heat preservation plate;

[0038] The upper shaping core 3 is driven downward by the upper mold 1 to pressurize and shape the aluminum-based silicon carbide plate.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A boss forming die for an aluminum-based silicon carbide plate, comprising an upper die (1) and a lower die (2), characterized in that: The upper mold (1) and the lower mold (2) are respectively fixedly mounted with corresponding upper shaping cores (3) and lower shaping cores (4), and the upper mold (1) and the lower mold (2) are provided with preheating mechanisms for heating the upper shaping cores (3) and the lower shaping cores (4); The upper mold (1) and the lower mold (2) are correspondingly distributed up and down; The upper shaping core (3) is located at the lower end of the upper mold (1), and the lower shaping core (4) is located at the upper end of the lower mold (2); The upper shaping core (3) and the lower shaping core (4) have corresponding surfaces integrally connected with staggered limiting end heads.

2. The boss forming die for the aluminum-based silicon carbide plate according to claim 1, characterized in that: A shaping cavity (5) for placing an aluminum-based silicon carbide plate is formed between the upper mold (1) and the lower mold (2) via an upper shaping core (3) and a lower shaping core (4).

3. The boss forming die for the aluminum-based silicon carbide plate according to claim 1, characterized in that: The preheating mechanism comprises a first heat-generating wire (6) connected to an external power source, a first heat-conducting wire (7), a second heat-generating wire (8) connected to the external power source, and a second heat-conducting wire (9).

4. The boss forming die for the aluminum-based silicon carbide plate according to claim 3, characterized in that: The first heat-generating wire (6) is connected to one side of the upper shaping core (3), and the first heat-conducting wire (7) is connected to the same side of the upper shaping core (3); The second heat-generating wire (8) is connected to one side of the lower shaping core (4), and the second heat-conducting wire (9) is connected to the other side of the lower shaping core (4).

5. The boss forming die for the aluminum-based silicon carbide plate according to claim 4, characterized in that: The upper shaping core (3) and the lower shaping core (4) are both covered with a heat-insulating plate (10).

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