A blanking die

Abstract

The application provides a blanking die for cutting automobile side outer plates, comprising a lower die device and an upper die device arranged above the lower die device, the lower die device having a lower die base and a cutter block and a material supporting assembly arranged on the lower die base; the material supporting assembly comprises a plurality of material supporting racks distributed on the outer side of the cutter block, the plurality of material supporting racks at least comprising a first material supporting rack, the first material supporting rack having a connecting rod, a plurality of first rollers connected to the connecting rod and a first base connected to both ends of the connecting rod, the first base being connected to the lower die base, a first elastic member being arranged between the connecting rod and the first base to enable the first rollers on the connecting rod to protrude upward from the cutter block under the action of the first elastic member.

Description

Technical Field

[0001] This application relates to the field of vehicle component manufacturing technology, specifically to a blanking die. Background Technology

[0002] Due to the limitations of the styling seams, the shape of the automotive side panel is relatively complex. Ordinary rectangular materials cannot meet the forming requirements. It is necessary to use a blanking die to pre-cut the sheet material before the drawing forming process so that the inner and outer contours of the sheet material meet the requirements.

[0003] In existing technology, the blanking die has a support frame and a sliding roller fixed on the support frame. The support frame is located on the lower die, and the support frame and the lower die are connected by a nitrogen spring. In the initial state, the nitrogen spring extends and lifts the support frame above the cutting block on the lower die. During operation, the sheet metal is above the sliding roller, and the press drives the upper die downward. The upper die cutting block contacts the sheet metal and presses down on the support frame. The nitrogen spring is compressed, so that the lower die cutting block contacts the sheet metal and generates pressure, thereby cutting off the waste material.

[0004] However, the existing material support structure still has the following shortcomings: First, the load-bearing frame is composed of multiple aluminum profiles. Errors accumulate during the assembly process, leading to the risk of loose screws after prolonged use. This can result in the entire material support structure becoming loose, with localized collapse and deformation, affecting the accuracy of the material sheet boundaries and impacting the stability and reliability of subsequent production. Second, errors in the installation height and stroke of multiple nitrogen springs can easily cause the load-bearing frame to become uneven, affecting the accuracy of the material sheet boundaries and shortening the spring lifespan. Utility Model Content

[0005] In view of this, this application provides a blanking die that can solve the problems of low reliability, poor accuracy and high cost in the prior art.

[0006] To achieve the above objectives, this application provides the following technical solution: A blanking die for cutting the outer side panel of an automobile includes a lower die assembly and an upper die assembly disposed above the lower die assembly. The lower die assembly has a lower die base and a cutting block and a material support assembly disposed on the lower die base. The material support assembly includes multiple material support frames distributed on the outer side of the blade block. The multiple material support frames include at least a first material support frame. The first material support frame has a connecting rod, multiple first rollers connected to the connecting rod, and a first base connected to at least both ends of the connecting rod. The first base is connected to the lower mold base. A first elastic element is provided between the connecting rod and the first base so that the first rollers on the connecting rod can protrude upward from the blade block under the action of the first elastic element.

[0007] During operation, multiple first material support frames distributed on the lower die base transport and support the sheet material. When the sheet material is held on the lower die base, the lower die device moves downward and presses down on the sheet material. Simultaneously, the sheet material presses down on the multiple first material support frames, causing the first elastic elements in the multiple first material support frames to deform under force, and causing the connecting rod and the first roller on the connecting rod to move downward until the first roller is no higher than the cutting block. Then, the cutting block and the upper die device cooperate to cut the sheet material. After cutting, the upper die device moves upward, the first elastic elements of the multiple first material support frames return to their original deformation, and drive the connecting rod and the first roller to move upward until the first roller is higher than the cutting block. Then, the sheet material is unloaded through the multiple first material support frames. With this configuration, multiple material support frames are individually connected to the lower die base, eliminating the need for a load-bearing frame. This greatly reduces the risk. Even if some material support frames are damaged in actual production, it does not affect the overall situation, demonstrating good structural stability and reliability. While reducing production costs, it also avoids the accumulation of assembly errors, improves the edge accuracy of the sheet material, and reduces the risk of wrinkling and cracking during the drawing process of the parts. Furthermore, each material support rack is equipped with a first elastic element, which can be set as a regular spring, eliminating the need for a nitrogen spring. This helps reduce costs and facilitates disassembly and maintenance.

[0008] In one optional embodiment, the first material support further includes a first swing arm, a first end of which is hinged to the first base, and a second end of which is hinged to the connecting rod. A first elastic element is disposed between the first swing arm and the first base to drive the second end of the first swing arm to swing upwards. By employing a lever mechanism, the first swing arm drives the connecting rod to swing upwards relative to the first base. The first elastic element, connected between the first swing arm and the first base, is not directly subjected to the downward force of the connecting rod, which helps protect the first elastic element and improves the structural stability of the first material support.

[0009] In one optional embodiment, the first elastic element is connected to a first position of the first swing arm, and the distance between the first end of the first swing arm and the first position is less than the distance between the second end of the first swing arm and the first position. During the swinging process of the first swing arm, the movement path of the first position of the first swing arm is less than half the movement path of the second end of the first swing arm, which can reduce the deformation of the first elastic element and prevent the first elastic element from getting stuck and damaged.

[0010] In one optional embodiment, a first through groove is provided above the first base, and the first end of the first swing arm is hinged to the two side walls of the first through groove. By embedding the first end of the first swing arm into the first through groove of the first base, the swing of the first swing arm can be limited and protected by the through groove, and the reliability and stability of the connection between the first swing arm and the first base can also be improved.

[0011] In one optional embodiment, the first elastic element is configured as a compression spring, and a first spring groove is provided between the bottom of the first through groove and the first swing arm for the first elastic element to be embedded. Since the first elastic element is disposed in the first spring groove, the first spring groove can protect the first elastic element, and since the end of the first elastic element is located in the first spring groove, the connection of the first elastic element is also more stable and reliable.

[0012] In one optional embodiment, 3-6 first rollers are provided on the connecting rod between two adjacent first bases. One first base can correspond to multiple first rollers, which reduces the number of first bases used, simplifies the structure, reduces assembly workload, and also gives the first material support frame better support stability.

[0013] In one optional embodiment, the plurality of material support frames includes at least a second material support frame. The second material support frame has a second base, a second roller, and a second elastic element. The second elastic element is connected between the second base and the second roller, allowing the second roller to protrude upwards from the cutting block under the action of the second elastic element. Since each second material support frame has a second base and a second roller, each second material support frame forms a support point, thus providing single-point support for the material sheet. During processing, the second material support frames can be batch-processed without requiring individual design, which helps reduce processing costs. When the first and second material support frames are assembled on the lower die base, the first material support frame can be assembled in a large area of ​​the lower die base, and the second material support frame can be assembled in a small area. By rationally distributing the first and second material support frames, the support balance and stability are improved.

[0014] In one optional embodiment, the second material support further includes a second swing arm, a first end of which is hinged to the second base, and a second end of which is hinged to the second roller. A second elastic element is connected between the second base and the second swing arm to drive the second end of the second swing arm to swing upwards. By employing a lever mechanism, the second swing arm drives the second roller to swing upwards relative to the second base. The second elastic element, connected between the second swing arm and the second base, is not directly subjected to the downward force of the second roller, which helps protect the second elastic element and improves the structural stability of the second material support.

[0015] In one optional embodiment, the second elastic element is connected to a second position of the second swing arm, and the distance between the first end of the second swing arm and the second position is less than the distance between the second end of the second swing arm and the second position. During the swinging process of the second swing arm, the movement path of the second position of the second swing arm is less than half the movement path of the second end of the second swing arm, which can reduce the deformation of the second elastic element and prevent the second elastic element from getting stuck and damaged.

[0016] In one optional embodiment, a second through groove is provided above the second base, and the first end of the second swing arm is hinged to the two side walls of the second through groove; the second elastic element is configured as a compression spring, and a second spring groove for the second elastic element to be embedded is provided between the bottom of the second through groove and the second swing arm. By embedding the first end of the second swing arm into the second through groove of the second base, the swing of the second swing arm can be limited and protected by the through groove, and the reliability and stability of the connection between the second swing arm and the second base can also be improved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a structural diagram illustrating the installation of a material support assembly according to some embodiments of this application.

[0019] Figure 2 A perspective view of a material support assembly shown for some embodiments of this application.

[0020] Figure 3 A cross-sectional view of a first material support frame (two first bases) shown for some embodiments of this application.

[0021] Figure 4 A cross-sectional view of a first material support frame (three first bases) shown for some embodiments of this application.

[0022] Figure 5 A cross-sectional view of a second material rack shown for some embodiments of this application. Figure 1 .

[0023] Figure 6 A cross-sectional view of a second material rack shown for some embodiments of this application. Figure 2 .

[0024] Explanation of reference numerals in the attached drawings: 1. First material support frame; 2. Second material support frame; 3. Lower mold base; 4. Cutting block; 11. First base; 12. First swing arm; 13. First roller; 14. Connecting rod; 15. First spring groove; 21. Second base; 22. Second swing arm; 23. Second roller; 24. Second spring groove; 211. Second through groove. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] like Figures 1-6 As shown in the figure, this application provides a blanking die for cutting the outer side panel of an automobile. It includes an upper die device and a lower die device. The upper die device is located above the lower die device. The upper die device can move up and down under the drive of a press so that the upper die device is closer to and farther away from the lower die device. Through the cooperation of the upper die device and the lower die device, the sheet is pressed into the required shape and separated from the sheet for further processing to form the outer side panel of the automobile.

[0027] The lower die device includes a lower die base 3, a cutting block 4, and a material support assembly. Both the cutting block 4 and the material support assembly are located on the upper side of the lower die base 3. The cutting block 4 is used to cut the material sheet on the lower die base 3, and the material support assembly is used to support and transport the material sheet on the lower die base 3. Under the action of the material support assembly, the material sheet can be input into the lower die base 3 and output from the lower die base 3. When the material sheet is on the lower die base 3, the material support assembly supports the material sheet. Simultaneously, the upper die device presses down on the material sheet, causing the material support assembly to move downwards. The cutting of the material sheet is completed through the cooperation of the cutting block 4 and the upper die device.

[0028] The material support assembly includes multiple material support brackets arranged in an array on the lower die base 3, located outside the cutter blocks 4, so that the multiple material support brackets provide support for the material sheet outside the cutter blocks 4. Here, both the multiple material support brackets and the cutter blocks 4 are disposed on the lower die base 3. The material support brackets are arranged in areas of the lower die base 3 where the cutter blocks 4 are not located. For example, multiple cutter blocks 4 are spaced apart and located in the middle of the lower die base 3. The multiple material support brackets are distributed in the area around the cutter blocks 4, and located in the area between two adjacent cutter blocks 4.

[0029] It should be noted that the installation positions of multiple material support racks can be arranged in a more reasonable matrix pattern based on previous designs and usage experience. For example, in positions where there are no processes and only support is required, the arrangement density of the material support racks can be reduced, or the number of support rollers on the material support racks can be reduced, in order to achieve the purpose of weight reduction and cost reduction. In positions where there are edge trimming processes, the arrangement density of the material support racks can be increased, or the number of support rollers can be increased to improve support stability.

[0030] The shapes and structures of the multiple material support frames can be identical or different. When the multiple material support frames have identical structures, they can all be configured as first material support frames 1, that is, multiple first material support frames 1 are distributed on the lower mold base 3. When the multiple material support frames have different structures, they can include some first material support frames 1 and some second material support frames 2, that is, first material support frames 1 and second material support frames 2 are mixed and distributed on the lower mold base 3. The following is a specific explanation using first material support frames 1 and second material support frames 2 as examples.

[0031] In the first embodiment, such as Figure 3-4 As shown, the first material support frame 1 includes a connecting rod 14, a first base 11, a first elastic element, and first rollers 13. Multiple first rollers 13 are provided, spaced apart on the connecting rod 14. Each first roller 13 protrudes upward from the connecting rod 14 and can rotate relative to the connecting rod 14, thus supporting and transporting the material sheet. The first base 11 is connected to the lower mold base 3. At least two first bases 11 are provided and connected to at least two ends of the connecting rod 14. For example, two first bases 11 are provided and connected to both ends of the connecting rod 14, or three first bases 11 are provided, with two first bases 11 connected to both ends of the connecting rod 14 and the third first base 11 connected to the middle of the connecting rod 14. The first elastic element is connected between the first base 11 and the connecting rod 14. The first elastic element causes the connecting rod 14 to move up and down relative to the first base 11 through its own elastic deformation, so that the first roller 13 on the connecting rod 14 can protrude upward from the blade block 4. That is, in the natural state, under the elastic action of the first elastic element, when the first roller 13 supports the material sheet, the first roller 13 still protrudes upward from the blade block 4, so that there is a gap between the material sheet and the blade block 4, and the blade block 4 is prevented from scratching the material sheet during transportation.

[0032] During use, multiple first material support frames 1 distributed on the lower die base 3 transport and support the material sheet. When the material sheet is held on the lower die base 3, the lower die device moves downward and presses down on the material sheet. At the same time, the material sheet presses down on the multiple first material support frames 1. The first elastic elements in the multiple first material support frames 1 deform under force, causing the connecting rod 14 and the first roller 13 on the connecting rod 14 to move downward until the first roller 13 is no higher than the cutting block 4. Then, the cutting block 4 and the upper die device cooperate to cut the material sheet. After the cutting is completed, the upper die device moves upward, the first elastic elements of the multiple first material support frames 1 return to their original deformation, and drive the connecting rod 14 and the first roller 13 to move upward until the first roller 13 is higher than the cutting block 4. Then, the multiple first material support frames 1 unload the material sheet.

[0033] This configuration, with multiple material support brackets individually connected to the lower die base 3, eliminates the need for a load-bearing frame, significantly mitigating risk. Even if some support brackets are damaged during actual production, the overall structure remains unaffected, demonstrating good structural stability and reliability. This reduces production costs while preventing the accumulation of assembly errors, improving sheet boundary accuracy, and lowering the risk of wrinkling and cracking during drawing. Furthermore, each support bracket is equipped with a first elastic element, which can be a standard spring, eliminating the need for nitrogen springs, thus reducing costs and facilitating disassembly and maintenance.

[0034] Since each first material support frame 1 has multiple first rollers 13, each first material support frame 1 can form multiple support points, thereby forming multi-point support for the material sheet, which is beneficial to improving support stability. The number of first rollers 13 on each first material support frame 1 can be set to three, four, five, or six, specifically according to the number of first bases 11. The number of first rollers 13 on the connecting rod 14 between two adjacent first bases 11 is set to 3-6, for example, three, four, or five. In this way, one first base 11 can correspond to multiple first rollers 13, which can reduce the number of first bases 11 used, simplify the structure, reduce assembly workload, and also give the first material support frame 1 better support stability. For example, two first bases 11 are spaced apart on the connecting rod 14 of the first material support frame 1, and three or four first rollers 13 are provided on the connecting rod 14; or, three first bases 11 are spaced apart on the connecting rod 14 of the first material support frame 1, and seven or eight first rollers 13 are provided on the connecting rod 14.

[0035] The first material support frame 1 also includes a first swing arm 12. The first end of the first swing arm 12 is hinged to the first base 11, and the second end of the first swing arm 12 is hinged to a connecting rod 14. A first elastic element is disposed between the first swing arm 12 and the first base 11. By swinging the second end of the first swing arm 12 upwards relative to the first end, the connecting rod 14 can be driven to swing upwards relative to the first base 11, thereby completing the vertical displacement of the connecting rod 14 and the first roller 13. The lengths of the first swing arms 12 within the same first material support frame 1 are consistent, ensuring that the connecting rod 14 remains horizontal during operation, improving the stability of the material support. Furthermore, the first elastic element connects the first swing arm 12 and the first base 11, and the elastic force of the first elastic element drives the first swing arm 12 to swing upwards relative to the first base 11. In this way, by using a lever, the first swing arm 12 drives the connecting rod 14 to swing upward relative to the first base 11. The first elastic element is connected between the first swing arm 12 and the first base 11 and will not be directly subjected to the downward force of the connecting rod 14, which is beneficial to protect the first elastic element and improve the structural stability of the first material support frame 1.

[0036] In other solutions, the connecting rod 14 can also be connected to the first base 11 in the form of a telescopic rod or a slider groove, that is, the first elastic element is set vertically and acts directly on the connecting rod 14.

[0037] The first elastic element is connected to a first position on the first swing arm 12, which is located at the middle of the first swing arm 12. The distance between the first end of the first swing arm 12 and the first position is not zero, and the distance between the second end of the first swing arm 12 and the second position is also not zero. Here, the distance between the first end of the first swing arm 12 and the first position is less than the distance between the second end of the first swing arm 12 and the first position. During the swinging process of the first swing arm 12, the movement path of the first position of the first swing arm 12 is less than half the movement path of the second end of the first swing arm 12. This can reduce the deformation of the first elastic element and prevent the first elastic element from getting stuck and damaged.

[0038] In some designs, a first through groove is provided above the first base 11. The first through groove has two opposing side walls. The first end of the first swing arm 12 is located within the first through groove and hinged to the two opposing side walls of the first through groove. For example, a pin can be inserted through both side walls of the first through groove and the first end of the first swing arm 12. In this way, by embedding the first end of the first swing arm 12 into the first through groove of the first base 11, the swing of the first swing arm 12 can be limited and protected by the through groove, and the reliability and stability of the connection between the first swing arm 12 and the first base 11 can also be improved.

[0039] The first elastic element is configured as a compression spring, such as a helical spring, with its two ends abutting against the bottom of the first swing arm 12 and the first through groove, respectively. Furthermore, a first spring groove 15 is provided between the first swing arm 12 and the bottom of the first through groove, and the first elastic element is disposed within the first spring groove 15. The first spring groove 15 protects the first elastic element, and because the end of the first elastic element is located within the first spring groove 15, the connection of the first elastic element is more stable and reliable.

[0040] In the specific design, the first swing arm 12 is provided with a first spring groove 15 on the side facing the bottom of the first through groove and the bottom of the first through groove. The two ends of the first elastic member are embedded in the two first spring grooves 15. When the two first spring grooves 15 abut, they can limit the swing of the first swing arm 12. At this time, the first elastic member still has good reliability when it is in the two first spring grooves 15.

[0041] In the second embodiment, the plurality of material racks, in addition to the first material rack 1 described above, also include a second material rack 2, that is, the plurality of material racks are formed by a combination of the first material rack 1 and the second material rack 2. Figure 5-6 As shown, the second material support 2 includes a second base 21, a second elastic element, and a second roller 23. The second base 21 is connected to the lower mold base 3. One second base 21 and one second roller 23 are provided. The second roller 23 is connected to the second base 21 via the second elastic element. The second roller 23 protrudes upward from the connecting rod 14 and can rotate relative to the second base 21, thus supporting and transporting the material sheet. The second elastic element connects the second base 21 and the second roller 23. Through its elastic deformation, the second elastic element causes the second roller 23 to move vertically relative to the second base 21, allowing it to protrude upward from the cutting block 4. In its natural state, under the elastic action of the second elastic element, when the second roller 23 supports the material sheet, it still protrudes upward from the cutting block 4, creating a gap between the material sheet and the cutting block 4 to prevent the cutting block 4 from scratching the material sheet during transport.

[0042] During use, the first material support frame 1 and the second material support frame 2, distributed on the lower die base 3, transport and support the material sheet. When the material sheet is held on the lower die base 3, the lower die device moves downward and presses down on the material sheet. At the same time, the material sheet presses down on the first material support frame 1 and the second material support frame 2. The first elastic element of the first material support frame 1 and the second elastic element of the second material support frame 2 are deformed under force, causing the first roller 13 and the second roller 23 to move downward until the first roller 13 and the second roller 23 are no higher than the cutting block 4. Then, the cutting block 4 and the upper die device cooperate to cut the material sheet. After the cutting is completed, the upper die device moves upward. The first elastic element of the first material support frame 1 and the second elastic element of the second material support frame 2 return to their original deformation and drive the first roller 13 and the second roller 23 to move upward until the first roller 13 and the second roller 23 are higher than the cutting block 4. Then, the material sheet is unloaded through the first material support frame 1 and the second material support frame 2.

[0043] With this configuration, both the first material support 1 and the second material support 2 are individually connected to the lower die base 3, eliminating the need for a load-bearing frame. This significantly reduces risk, and even if some material support frames are damaged during actual production, the overall structure remains intact, demonstrating good structural stability and reliability. This reduces production costs while also preventing the accumulation of assembly errors, improving sheet boundary accuracy, and lowering the risk of wrinkling and cracking during drawing. Furthermore, the first and second elastic components can be set as ordinary springs, eliminating the need for nitrogen springs, which helps reduce costs and facilitates disassembly and maintenance.

[0044] Since each second material support 2 has a second base 21 and a second roller 23, each second material support 2 forms a support point, thus providing single-point support for the material sheet. During processing, the second material support 2 can be batch-processed without the need for individual design, which helps reduce processing costs. When the first material support 1 and the second material support 2 are assembled on the lower mold base 3, the first material support 1 can be assembled in a large area on the lower mold base 3, and the second material support 2 can be assembled in a small area on the lower mold base 3. By rationally distributing the first material support 1 and the second material support 2, the support balance and stability can be improved.

[0045] The second material support 2 also includes a second swing arm 22. The first end of the second swing arm 22 is hinged to the second base 21, and the second end is hinged to the second roller 23. A second elastic element is disposed between the second swing arm 22 and the second base 21. By swinging the second end of the second swing arm 22 upwards relative to the first end, the second roller 23 can be driven to swing upwards relative to the second base 21, thereby completing the vertical displacement of the second roller 23. Furthermore, the second elastic element connects the second swing arm 22 and the second base 21, and its elastic force drives the second swing arm 22 to swing upwards relative to the second base 21. Thus, using a lever mechanism, the second swing arm 22 drives the second roller 23 to swing upwards relative to the second base 21. The second elastic element, connected between the second swing arm 22 and the second base 21, is not directly subjected to the downward force of the second roller 23, which helps protect the second elastic element and improves the structural stability of the second material support 2.

[0046] In other solutions, the second roller 23 can also be connected to the second base 21 in the form of a telescopic rod or a slider groove, that is, the second elastic element is set vertically and acts directly on the second roller 23.

[0047] The second elastic element is connected to a second position on the second swing arm 22, which is located at the middle of the second swing arm 22. The distance between the first end of the second swing arm 22 and the second position is not zero, and the distance between the second end of the second swing arm 22 and the second position is also not zero. Here, the distance between the first end of the second swing arm 22 and the second position is less than the distance between the second end of the second swing arm 22 and the second position. During the swinging process of the second swing arm 22, the movement path of the second position of the second swing arm 22 is less than half the movement path of the second end of the second swing arm 22. This can reduce the deformation of the second elastic element and prevent the second elastic element from getting stuck and damaged.

[0048] In some solutions, such as Figure 6 As shown, a second through groove 211 is provided above the second base 21. The second through groove 211 has two opposing side walls. The first end of the second swing arm 22 is located in the second through groove 211 and is hinged to the two opposing side walls of the second through groove 211. For example, a pin can be inserted through both side walls of the second through groove 211 and the first end of the second swing arm 22. In this way, by embedding the first end of the second swing arm 22 into the second through groove 211 of the second base 21, the swing of the second swing arm 22 can be limited and protected by the through groove, and the reliability and stability of the connection between the second swing arm 22 and the second base 21 can be improved.

[0049] The second elastic element is configured as a compression spring, such as a helical spring, with both ends abutting the bottom of the second swing arm 22 and the second through groove 211, respectively. Furthermore, a second spring groove 24 is provided between the bottom of the second swing arm 22 and the second through groove 211, and the second elastic element is disposed within the second spring groove 24. The second spring groove 24 protects the second elastic element, and because the end of the second elastic element is located within the second spring groove 24, the connection of the second elastic element is more stable and reliable.

[0050] In the specific design, the side of the second swing arm 22 facing the bottom of the second through groove 211 and the bottom of the second through groove 211 are both provided with second spring grooves 24. The two ends of the second elastic member are embedded in the two second spring grooves 24. When the two second spring grooves 24 abut, they can limit the swing of the second swing arm 22. At this time, the second elastic member still has good reliability when it is in the two second spring grooves 24.

[0051] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0052] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0053] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0054] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0055] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0056] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A blanking die for cutting outer side panels of automobiles, characterized in that, It includes a lower mold device and an upper mold device disposed above the lower mold device. The lower mold device has a lower mold base (3) and a cutting block (4) and a material support assembly disposed on the lower mold base (3). The material support assembly includes multiple material support frames distributed on the outside of the blade block (4). The multiple material support frames include at least a first material support frame (1). The first material support frame (1) has a connecting rod (14), multiple first rollers (13) connected to the connecting rod (14), and a first base (11) connected to at least both ends of the connecting rod (14). The first base (11) is connected to the lower mold base (3). A first elastic element is provided between the connecting rod (14) and the first base (11) so that the first rollers (13) on the connecting rod (14) can protrude upward from the blade block (4) under the action of the first elastic element.

2. The blanking die according to claim 1, characterized in that, The first material support frame (1) further includes a first swing arm (12), the first end of the first swing arm (12) is hinged to the first base (11), the second end of the first swing arm (12) is hinged to the connecting rod (14), and the first elastic element is disposed between the first swing arm (12) and the first base (11) to drive the second end of the first swing arm (12) to swing upward.

3. The blanking die according to claim 2, characterized in that, The first elastic element is connected to the first position of the first swing arm (12), and the distance between the first end of the first swing arm (12) and the first position is less than the distance between the second end of the first swing arm (12) and the first position.

4. The blanking die according to claim 2, characterized in that, A first through groove is provided above the first base (11), and the first end of the first swing arm (12) is hinged to the two side walls of the first through groove.

5. The blanking die according to claim 4, characterized in that, The first elastic element is configured as a compression spring, and a first spring groove (15) is provided between the bottom of the first through groove and the first swing arm (12) for the first elastic element to be embedded.

6. The blanking die according to claim 2, characterized in that, Between two adjacent first bases (11), the first rollers (13) on the connecting rod (14) are provided in 3-6 positions.

7. The blanking die according to any one of claims 1-6, characterized in that, The plurality of material support frames include at least a second material support frame (2), the second material support frame (2) having a second base (21), a second roller (23) and a second elastic member, the second elastic member being connected between the second base (21) and the second roller (23) so that the second roller (23) can protrude upward from the blade block (4) under the action of the second elastic member.

8. The blanking die according to claim 7, characterized in that, The second material support frame (2) further includes a second swing arm (22), the first end of the second swing arm (22) is hinged to the second base (21), the second end of the second swing arm (22) is hinged to the second roller (23), and the second elastic element is connected between the second base (21) and the second swing arm (22) to drive the second end of the second swing arm (22) to swing upward.

9. The blanking die according to claim 8, characterized in that, The second elastic element is connected to the second position of the second swing arm (22), and the distance between the first end of the second swing arm (22) and the second position is less than the distance between the second end of the second swing arm (22) and the second position.

10. The blanking die according to claim 8, characterized in that, A second through groove (211) is provided above the second base (21), and the first end of the second swing arm (22) is hinged to the two side walls of the second through groove (211); the second elastic element is configured as a compression spring, and a second spring groove (24) for the second elastic element to be embedded is provided between the bottom of the second through groove (211) and the second swing arm (22).

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