Bending die for aluminum-based silicon carbide plate
By designing a multi-angle aluminum-based silicon carbide plate bending mold, combining heating and multi-angle shaping cavity group, the problems of aluminum-based silicon carbide plates being prone to cracking and difficult to bending at room temperature are solved, and multi-angle bending processing with high pass rate is achieved.
Patent Information
- Application Number
- CN202422357687.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Existing aluminum-based silicon carbide plates are prone to cracking when bent at room temperature, and existing bending equipment is difficult to achieve multi-angle bending, and the product pass rate is low.
An aluminum-based silicon carbide plate bending mold is designed, including an upper mold and a lower mold, and a shaping cavity group, a heating wire and an insulation board are provided. It can achieve multi-angle bending of 45°, 90°, 235° and 180° in a heating state, and bending of various shapes is achieved through the combination of different stamping ends and pedestals.
Under the heating state, the temperature of the aluminum-based silicon carbide plate rises to 220-240°C, reducing the risk of cracking and achieving high pass rate production with multi-angle bending.
Smart Images
Figure CN223185258U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum matrix silicon carbide plate processing, in particular to a bending die for aluminum matrix silicon carbide plates. Background Art
[0002] When bending products made of aluminum matrix silicon carbide in the prior art, at room temperature, the aluminum matrix silicon carbide material is highly brittle, and it is easy to crack during bending, resulting in a low product qualification rate. Therefore, a heating and adjustment mechanism is added to the bending equipment to raise the temperature of the aluminum matrix silicon carbide plate to 220 - 240 °C, and the aluminum matrix silicon carbide plate is bent under the heating state to improve cracking, so as to increase the product qualification rate.
[0003] However, the existing bending equipment uses a simple mechanical method to press the aluminum matrix silicon carbide plate. The stressed aluminum matrix silicon carbide plate is extremely easy to break due to its thin and brittle structure. Moreover, most of the existing bending equipment uses a single form of bending structure. One bending die can only bend the aluminum matrix silicon carbide plate into one shape. If you want to bend and process it at multiple angles, you can only meet the diverse bending requirements of the aluminum matrix silicon carbide plate by preparing various specifications of bending tools. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problem in the prior art that it is difficult to perform multi-angle bending and shaping on aluminum matrix silicon carbide plates, and a bending die for aluminum matrix silicon carbide plates is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A bending die for aluminum matrix silicon carbide plates, including an upper die and a lower die. A shaping cavity group for shaping the aluminum matrix silicon carbide plate is arranged between the upper die and the lower die. A heating wire connected to an external power supply is fixedly installed on the lower die, and a heat preservation plate fitting the shaping cavity group is arranged in the lower die;
[0007] The shaping cavity group includes a first bending part for bending the aluminum matrix silicon carbide plate to 45°, a second bending part for 90°, a third bending part for 235°, and a fourth bending part for 180°;
[0008] The first bending part, the second bending part, the third bending part, and the fourth bending part for 180° are arranged in sequence.
[0009] Preferably, the first bending part is composed of a first cushion block and a first stamping end head. The first cushion block is arranged in the lower die, and the first stamping end head is fixedly installed in the upper die.
[0010] Preferably, the outer corner angle of the lower end face of the first cushion block and the inner corner angle of the upper end face of the first stamping end head are both 145°.
[0011] Preferably, the second bending part is composed of a second cushion block and a second stamping end head. The second cushion block is arranged in the lower die, and the second stamping end head is fixedly installed in the upper die.
[0012] Preferably, the outer corner angle of the lower end face of the second cushion block and the inner corner angle of the upper end face of the second stamping end head are both 90°.
[0013] Preferably, the third bending part is composed of a third cushion block and a third stamping end head. The third cushion block is arranged in the lower die, and the third stamping end head is fixedly installed in the upper die.
[0014] Preferably, the outer corner angle of the lower end face of the third cushion block and the inner corner angle of the upper end face of the third stamping end head are both 55°.
[0015] Preferably, the fourth bending part is composed of a fourth cushion block, a fourth stamping end head, a water-drop-shaped groove and a notch. The fourth cushion block is arranged in the lower die, the fourth stamping end head is fixedly installed in the upper die, and the water-drop-shaped groove and the notch are respectively arranged at two sides of the fourth stamping end head.
[0016] Preferably, the lower end face of the fourth cushion block is parallel to the upper end face of the fourth stamping end head.
[0017] Preferably, guiding protrusions for penetrating through the aluminum matrix silicon carbide plate are integrally connected to the first cushion block, the second cushion block, the third cushion block and the fourth cushion block.
[0018] Compared with the prior art, the utility model has the following advantages:
[0019] 1. A shaping cavity group is formed between the upper die and the lower die of the utility model, which includes a first bending part, a second bending part, a third bending part and a fourth bending part, so as to facilitate the bending processing of the aluminum matrix silicon carbide plate in the forms of 45°, 90°, 235° and 180°.
[0020] 2. The utility model adds heating wires and a heat preservation plate, so that the temperature of the aluminum matrix silicon carbide plate rises to 220-240 °C. Bending the aluminum matrix silicon carbide plate in the heating state can improve cracking and ensure the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural view of a bending die for an aluminum matrix silicon carbide plate proposed by the utility model;
[0022] Figure 2 is a sectional view of a bending die for an aluminum matrix silicon carbide plate proposed by the utility model;
[0023] Figure 3 is a schematic view of the initial state of the structure of the first bending part of a bending die for an aluminum matrix silicon carbide plate proposed by the utility model;
[0024] Figure 4 This is a schematic diagram of the first bending portion structure forming state of the aluminum-based silicon carbide plate bending die proposed in the present invention;
[0025] Figure 5 This is a schematic diagram of the initial state of the second bending portion structure of the aluminum-based silicon carbide plate bending die proposed in the present invention;
[0026] Figure 6 This is a schematic diagram of the second bending portion structure forming state of the aluminum-based silicon carbide plate bending die proposed in the present invention;
[0027] Figure 7 This is a schematic diagram of the initial state of the third bending portion structure of the aluminum-based silicon carbide plate bending die proposed in the present invention;
[0028] Figure 8 This is a schematic diagram of the third bending portion structure forming state of the aluminum-based silicon carbide plate bending die proposed in the present invention;
[0029] Figure 9 This is a schematic diagram of the initial state of the fourth bending portion structure of the aluminum-based silicon carbide plate bending die proposed in the present invention;
[0030] Figure 10 This is a schematic diagram of the forming state of the fourth bending part structure of the aluminum-based silicon carbide plate bending die proposed in the present invention.
[0031] In the figure: 1. Upper mold; 2. Lower mold; 3. Heating wire; 4. Insulation board; 5. Shaping cavity group; 501. First bending part; 50101. First cushion; 50102. First punching end; 502. Second bending part; 50201. Second cushion; 50202. Second punching end; 503. Third bending part; 50301. Third cushion; 50302. Third punching end; 504. Fourth bending part; 50401. Fourth cushion; 50402. Fourth punching end; 50403. Water drop groove; 50404. Notch; 6. Guide protrusion. DETAILED DESCRIPTION
[0032] 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.
[0033] Reference Figures 1 - 10, an aluminum-based silicon carbide plate bending die, including an upper die 1 and a lower die 2. There is a shaping cavity group 5 for shaping the aluminum-based silicon carbide plate between the upper die 1 and the lower die 2. The shaping cavity group 5 includes a first bending part 501 for bending the aluminum-based silicon carbide plate to 45°, a second bending part 502 for bending it to 90°, a third bending part 503 for bending it to 235°, and a fourth bending part 504 for bending it to 180°. It should be noted that by placing the aluminum-based silicon carbide plate at the pad position corresponding to the angle and then applying pressure to the aluminum-based silicon carbide plate with the stamping head corresponding to the angle, the aluminum-based silicon carbide plate can be bent to the required angle.
[0034] A heating wire 3 connected to an external power supply is fixedly installed on the lower die 2, and a heat insulation board 4 conforming to the shaping cavity group 5 is arranged inside the lower die 2. The upper die 1 and the lower die 2 are preheated through the heating wire 3 so that the temperature of the upper die 1 and the lower die 2 reaches 150°C. Then, an aluminum-based silicon carbide plate is placed on the lower die 2, and through further heating, the temperature of the aluminum-based silicon carbide plate rises to 220 - 240°C, thereby softening the structure of the aluminum-based silicon carbide plate itself and making it easier to bend.
[0035] The first bending part 501, the second bending part 502, the third bending part 503, and the fourth bending part 504 are distributed in sequence as follows:
[0036] First, refer to the attached drawings of the specification Figure 3 and the attached Figure 4 , the first bending part 501 is composed of a first pad 50101 and a first stamping head 50102. The first pad 50101 is opened in the lower die 2, and the first stamping head 50102 is fixedly installed in the upper die 1. The outer angle of the lower end surface of the first pad 50101 and the inner angle of the upper end surface of the first stamping head 50102 are both 145°. By applying pressure to the aluminum-based silicon carbide plate initially in a straight plate structure, the aluminum-based silicon carbide plate is bent to 45°.
[0037] Secondly, refer to the attached drawings of the specification Figure 5 and the attached Figure 6 , the second bending part 502 is composed of a second pad 50201 and a second stamping head 50202. The second pad 50201 is opened in the lower die 2, and the second stamping head 50202 is fixedly installed in the upper die 1. The outer angle of the lower end surface of the second pad 50201 and the inner angle of the upper end surface of the second stamping head 50202 are both 90°. By applying pressure to the aluminum-based silicon carbide plate initially in a straight plate structure, the aluminum-based silicon carbide plate is bent to 90°.
[0038] Thirdly, refer to the attached drawings of the specification Figure 7 and the attached Figure 8, the third bending part 503 is composed of a third cushion block 50301 and a third stamping end 50302. The third cushion block 50301 is provided in the lower die 2, and the third stamping end 50302 is fixedly installed in the upper die 1. The outer corner angle of the lower end surface of the third cushion block 50301 and the inner corner angle of the upper end surface of the third stamping end 50302 are both 55°. By applying pressure to the aluminum matrix silicon carbide plate with an initial straight plate structure, the aluminum matrix silicon carbide plate is bent to 235°.
[0039] Finally, refer to the attached drawings of the specification Figure 9 and the attached Figure 10 , the fourth bending part 504 is composed of a fourth cushion block 50401, a fourth stamping end 50402, a water droplet groove 50403 and a notch 50404. The fourth cushion block 50401 is provided in the lower die 2, and the fourth stamping end 50402 is fixedly installed in the upper die 1. The water droplet groove 50403 and the notch 50404 are respectively arranged on both sides of the fourth stamping end 50402. The lower end surface of the fourth cushion block 50401 is parallel to the upper end surface of the fourth stamping end 50402. It should be noted that the aluminum matrix silicon carbide plate with a straight plate structure is bent to 90 degrees through the second bending part 502, and then the 90° aluminum matrix silicon carbide plate is bent to 180° through the fourth bending part 504. Because a water droplet groove 50403 is arranged on one side of the fourth stamping end 50402, it avoids directly applying pressure to one end of the bent aluminum matrix silicon carbide plate. The two end faces of the middle position of the bent aluminum matrix silicon carbide plate do not contact each other and form a hollow structure with a water droplet cross-section. Because a notch 50404 is arranged on the other side of the fourth stamping end 50402, a 90° bend can be formed for the aluminum matrix silicon carbide plate with a longer length.
[0040] Guide protrusions 6 for penetrating the aluminum matrix silicon carbide plate are integrally connected to the first cushion block 50101, the second cushion block 50201, the third cushion block 50301 and the fourth cushion block 50401, so as to facilitate the sleeved limit of the aluminum matrix silicon carbide plate placed on the lower die 2 and avoid displacement due to force.
[0041] It should be noted that the specific model specifications of the upper die 1 and the lower die 2 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated here.
[0042] The functional principle of the present utility model can be described through the following operation methods:
[0043] The upper die 1 and the lower die 2 are heated by the heating wire 3, and the heat preservation board 4 is used for heat preservation maintenance;
[0044] When it is necessary to bend the aluminum matrix silicon carbide plate to 45°, the aluminum matrix silicon carbide plate is placed in the first bending part 501, and the first stamping end 50102 in the upper die 1 is controlled to move down until the aluminum matrix silicon carbide plate is bent to 45°.
[0045] When it is necessary to bend the aluminum matrix silicon carbide plate to 90°, place the aluminum matrix silicon carbide plate in the second bending part 502, and control the second stamping end 50202 in the upper die 1 to move down until the aluminum matrix silicon carbide plate is bent to 90°.
[0046] When it is necessary to bend the aluminum matrix silicon carbide plate to 235°, place the aluminum matrix silicon carbide plate in the third bending part 503, and control the third stamping end 50302 in the upper die 1 to move down until the aluminum matrix silicon carbide plate is bent to 235°.
[0047] When it is necessary to bend the aluminum matrix silicon carbide plate to 180°, place the aluminum matrix silicon carbide plate in the fourth bending part 504, and control the fourth stamping end 50402 in the upper die 1 to move down until the aluminum matrix silicon carbide plate is bent to 180°.
[0048] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. Aluminum-based silicon carbide plate bending die, comprising an upper die (1) and a lower die (2), characterized in that: A shaping cavity group (5) for shaping the aluminum-based silicon carbide plate is provided between the upper mold (1) and the lower mold (2), a heating wire (3) connected to an external power source is fixedly mounted on the lower mold (2), and a heat preservation plate (4) is provided in the lower mold (2) to fit the shaping cavity group (5); The shaping cavity group (5) comprises a first bending portion (501) for bending the aluminum-based silicon carbide plate to 45°, a second bending portion (502) of 90°, a third bending portion (503) of 235°, and a fourth bending portion (504) of 180°; The first bending portion (501), the second bending portion (502), the third bending portion (503) and the fourth bending portion (504) are distributed in sequence.
2. The aluminum-based silicon carbide plate bending die according to claim 1, characterized in that: The first bending portion (501) is composed of a first cushion (50101) and a first punching end (50102), wherein the first cushion (50101) is opened in the lower die (2), and the first punching end (50102) is fixedly installed in the upper die (1).
3. The aluminum-based silicon carbide plate bending die according to claim 2, characterized in that: The outer angle of the lower end surface of the first pad (50101) and the inner angle of the upper end surface of the first punching end (50102) are both 145°.
4. The aluminum-based silicon carbide plate bending die according to claim 3, characterized in that: The second bending portion (502) is composed of a second cushion (50201) and a second punching end (50202), wherein the second cushion (50201) is opened in the lower die (2), and the second punching end (50202) is fixedly installed in the upper die (1).
5. The aluminum-based silicon carbide plate bending die according to claim 4, characterized in that: The outer angle of the lower end surface of the second pad (50201) and the inner angle of the upper end surface of the second punching end head (50202) are both 90°.
6. The aluminum-based silicon carbide plate bending die according to claim 5, characterized in that: The third bending portion (503) is composed of a third pad (50301) and a third punching end (50302), wherein the third pad (50301) is opened in the lower die (2), and the third punching end (50302) is fixedly installed in the upper die (1).
7. The aluminum-based silicon carbide plate bending die according to claim 6, characterized in that: The outer angle of the lower end surface of the third pad (50301) and the inner angle of the upper end surface of the third punching end (50302) are both 55°.
8. The aluminum-based silicon carbide plate bending die according to claim 7, characterized in that: The fourth bending portion (504) is composed of a fourth cushion (50401), a fourth punching end (50402), a water drop groove (50403) and a notch (50404); the fourth cushion (50401) is provided in the lower die (2), and the fourth punching end (50402) is fixedly installed in the upper die (1); the water drop groove (50403) and the notch (50404) are respectively provided on both sides of the fourth punching end (50402).
9. The aluminum-based silicon carbide plate bending die according to claim 8, characterized in that: The lower end surface of the fourth pad (50401) is parallel to the upper end surface of the fourth punching end (50402).
10. The aluminum-based silicon carbide plate bending die according to claim 9, characterized in that: The first pad (50101), the second pad (50201), the third pad (50301) and the fourth pad (50401) are all integrally connected with a guide protrusion (6) for penetrating the aluminum-based silicon carbide plate.