A continuous punching die for a fan blade support

Abstract

The utility model discloses a kind of continuous stamping die of fan blade support, comprising: upper die and lower die, the upper die includes upper die holder, upper die plate and pressing plate, the lower die includes lower die holder, lower die plate and feed inlet, the feed inlet is installed in the feed end of the lower die holder, multiple groups of buoyancy guide pins are symmetrically laid on the both sides of the lower die plate;Punch group, plane forming punch, solid forming punch and slitting cutter head are sequentially arranged from front to back on the upper die plate, corresponding punch forming position, plane structure forming position, solid structure forming position and blanking position are one by one arranged on the surface of the lower die plate, cavity is equipped below the lower solid stamping forming position and blanking position, the material ejecting mechanism that can simultaneously eject workpiece on solid stamping forming position and blanking position is installed in the cavity, high-pressure air head is also installed on the blanking position. By the above-mentioned mode, the utility model can integrate multiple stamping dies, improve workpiece production efficiency, and significantly reduce the equipment cost of production line.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, and in particular to a continuous stamping die for a fan blade bracket. Background Technology

[0002] The structure of the wind turbine blade support is complex and requires multiple stamping processes in actual production. In traditional wind turbine blade support production lines, the wind turbine blade support is generally made by stamping the raw steel strip through multiple independent stamping dies. Different stamping processes need to be connected by conveyor belts, and each stamping process requires a material unloading and feeding step. This not only results in low overall production efficiency, but also requires dedicated personnel to handle the unloading and feeding, which consumes a lot of manual labor time. Some automated production lines use robotic arms to assist in the operation, which significantly increases equipment costs. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a continuous stamping die for a wind turbine blade bracket, which can integrate multiple stamping steps, improve production efficiency, and reduce production costs and production line equipment investment.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A continuous stamping die for a wind turbine blade support is provided. The continuous stamping die for the wind turbine blade support includes an upper die and a lower die. The lower die is located directly below the upper die. The upper die includes an upper die base, an upper template, and a pressure plate. The upper die base is located above the entire die. The upper template is fixed on the upper die base. The pressure plate is suspended below the upper template by multiple sets of spring-loaded mechanisms. The lower die includes a lower die base, a lower template, and a feed inlet. The feed inlet is installed at the feed end of the lower die base. The lower template is fixed on the lower die base and located directly below the upper template. Multiple sets of floating guide pins are symmetrically arranged on both sides of the lower template. When the material is pressed... When the upper die is pressed down, the floating guide pin can pass through the pre-reserved through hole on the pressure plate and be inserted into the corresponding pin hole on the upper template. The upper template is arranged with punch group, planar forming punch, three-dimensional forming punch and cutting head in sequence from front to back along the forming path of the fan blade bracket. The surface of the lower template is provided with corresponding punch forming position, planar structure forming position, three-dimensional structure forming position and unloading position. The lower template has a through cavity below the three-dimensional stamping forming position and the unloading position. The cavity is equipped with an ejector mechanism that can simultaneously eject the workpieces on the three-dimensional stamping forming position and the unloading position. A high-pressure fan head is also installed on the unloading position. The high-pressure fan head is connected to a high-pressure air source.

[0005] In a preferred embodiment of the present invention, the ejector mechanism includes a spring ejector rod and two workpiece support plates. The two workpiece support plates are symmetrically installed on both sides of the spring ejector rod and are respectively located directly below the three-dimensional structure forming position and the unloading position.

[0006] In a preferred embodiment of this utility model, the high-pressure blower is located inside the material feeding position.

[0007] In a preferred embodiment of this utility model, the upper template is divided into three independent upper forming sub-templates from front to back according to the forming sequence of the fan blade bracket. The punch assembly is arranged on the first upper forming sub-template, the planar forming punch is installed on the middle upper forming sub-template, and the three-dimensional forming punch and the cutting head are installed on the last upper forming sub-template. The pressure plate is correspondingly divided into three sub-pressure plates, and the lower template is correspondingly divided into three lower forming sub-templates. The punch forming position is located on the first lower forming sub-template, the planar structure forming position is located on the middle lower forming sub-template, and the three-dimensional structure forming position and the material unloading position are located on the last lower forming sub-template. At least three guide pillars are also installed on the upper template, with at least one guide pillar installed above each upper forming sub-template. The corresponding lower forming sub-templates are provided with one-to-one guide positioning holes. When the upper mold base is pressed down, the top of the guide pillar passes through the preset through hole on the corresponding sub-pressure plate and is inserted into the guide positioning hole provided on the corresponding lower forming sub-template. At least two sets of spring-pressing mechanisms are installed between each upper forming sub-template and the corresponding sub-pressing block. Each set of spring-pressing mechanisms includes a spring-lifting pin with its root fixed to the upper forming sub-template and its top mounted on the corresponding sub-pressing plate, and a compression spring installed between the sub-pressing plate and the upper forming sub-template.

[0008] The beneficial effects of this utility model are as follows: This utility model optimizes the production process of the existing wind turbine support production line, integrating multiple stamping and forming steps into a continuous stamping die. This not only saves the time of transferring dies between different stamping processes, but also saves the time of loading and unloading. The steel strip raw material only needs to be fed in from the inlet to obtain the finished workpiece from the outlet, which significantly improves production efficiency. Moreover, the final unloading is achieved by blowing the material outward with a high-pressure fan, which eliminates the need for manual labor and robotic arms, further improving efficiency while reducing the equipment investment of the production line. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the material cutting process in a preferred embodiment of the present invention;

[0010] Figure 2 This is a schematic diagram of the die-clamping process in the embodiment shown.

[0011] The components in the attached diagram are labeled as follows:

[0012] 1. Workpiece, 2. Feed port, 3. Upper mold base, 4. Upper template, 5. Pressure plate, 6. Lower mold base, 7. Lower template, 8. Spring ejector rod, 9. Workpiece support plate, 10. Punch assembly, 11. Flat forming punch, 12. Three-dimensional forming punch, 13. Slitting head, 14. High-pressure fan, 15. Floating guide pin, 16. Guide column, 17. Spring lifting pin, 18. Compression spring. Detailed Implementation

[0013] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0014] Please see Figure 1 and Figure 2 The embodiments of this utility model include:

[0015] A continuous stamping die for a wind turbine blade bracket includes an upper die and a lower die. The lower die is located directly below the upper die. The upper die includes an upper die base 3, an upper template 4, and a pressure plate 5. The upper die base 3 is located above the entire die. The upper template 4 is fixed to the upper die base 3. The pressure plate 5 is suspended below the upper template 4 by multiple sets of spring-loaded mechanisms. The lower die includes a lower die base 6, a lower template 7, and a feed inlet 2. The feed inlet 2 is installed at the feed end of the lower die base 6. The lower template 7 is fixed to the lower die base 6 and located directly below the upper template 3. Multiple sets of floating guide pins 15 are symmetrically arranged on both sides of the lower template 3. By setting the floating guide pins 15, the forward path of the steel strip entering the die can be restricted to prevent the steel strip from shifting and causing stamping misalignment. When the die is pressed down, the floating guide pin 15 can pass through the pre-reserved through hole on the pressure plate 5 and be inserted into the corresponding pin hole on the upper template 4, which can also improve the alignment accuracy of the upper and lower dies. The upper template 4 is provided with punch group 10, planar forming punch 11, three-dimensional forming punch 12 and cutting head 13 in sequence from front to back along the forming path of the fan blade bracket. The surface of the lower template 7 is provided with corresponding punch forming position, planar structure forming position, three-dimensional structure forming position and blanking position. The lower template 7 is provided with a through cavity below the three-dimensional stamping forming position and the blanking position. The cavity is equipped with a ejector mechanism that can simultaneously eject the workpiece 1 on the three-dimensional stamping forming position and the blanking position. A high-pressure fan head 14 is also installed on the blanking position. The high-pressure fan head 14 is connected to a high-pressure air source.

[0016] The synchronous ejector mechanism includes a spring ejector rod 8 and two workpiece support plates 9. The two workpiece support plates 9 are symmetrically installed on both sides of the spring ejector rod 8 and are located directly below the three-dimensional structure forming position and the unloading position, respectively. The reason for adopting this structure is that after the workpiece 1 is stamped by the three-dimensional forming punch 12, it changes from a planar state to a three-dimensional state. Therefore, during stamping, the contraction of the spring ejector rod 8 is needed to drive the workpiece support plates 9 to sink, supporting the workpiece 1 as a whole and avoiding damage to the formed three-dimensional structure when the upper die presses down. After the stamping is completed, the upper die resets, and the spring ejector rod 8 resets, driving the workpiece support plates 9 on both sides to lift the workpiece 1. At this time, the workpiece 1 that has been separated at the original unloading position can be blown out of the unloading position by the high-pressure blower. Then, the semi-finished workpieces 1 of each subsequent station can enter the corresponding next processing position in sequence and repeat the above stamping and avoidance actions.

[0017] The high-pressure blower 14 is located inside the unloading position. During the separation process between the upper and lower molds, the activation of the high-pressure blower uses high-pressure gas to rotate the formed workpiece 1, which has been separated from the surrounding steel strip by the cutting head 13, and blow it out of the unloading position onto the conveyor belt outside the mold. If the high-pressure blower 14 is not placed inside, there is a certain probability that the workpiece 1 will be blown into the mold, potentially damaging it during the next stamping.

[0018] The upper template 4 is divided into three independent upper forming sub-templates from front to back according to the forming sequence of the fan blade bracket. The punch group 10 is arranged on the first upper forming sub-template, the planar forming punch 11 is installed on the middle upper forming sub-template, and the three-dimensional forming punch 12 and the cutting head 13 are installed on the last upper forming sub-template. The pressure plate 5 is correspondingly divided into three sub-pressure plates, and the lower template 7 is correspondingly divided into three lower forming sub-templates. The punch forming position is located on the first lower forming sub-template, the planar structure forming position is located on the middle lower forming sub-template, and the three-dimensional structure forming position and the blanking position are located on the last lower forming sub-template. In this way, the entire mold is divided into three independent parts from the raw material steel strip inlet to the workpiece 1 outlet. This ensures that the three parts operate independently during actual pressing, effectively preventing mutual interference of the stamping action and improving the stamping accuracy.

[0019] The upper template 4 is also equipped with up to three guide posts 16. Each upper forming sub-template is equipped with a guide post 16. The corresponding lower forming sub-template is provided with a one-to-one guide positioning hole. When the upper mold base 3 is pressed down, the top of the guide post 16 passes through the preset through hole on the corresponding sub-press plate and is inserted into the guide positioning hole provided on the corresponding lower forming sub-template.

[0020] At least two sets of spring-loaded mechanisms are installed between each upper forming sub-template and its corresponding sub-pressing block, typically four sets in practice. These mechanisms are symmetrically arranged in pairs at the four corners of the corresponding upper forming sub-module. Each set of spring-loaded mechanisms includes a spring-loaded lifting pin 17 with its root mounted on the upper forming sub-template and its top mounted on the corresponding sub-pressing plate, and a compression spring 18 installed between the sub-pressing plate and the upper forming sub-template. In this way, the spring-loaded lifting pin 17 can stably suspend each sub-pressing plate below the corresponding forming sub-module. During the stamping process, the sub-pressing plate first falls and presses against the steel strip on the corresponding lower forming sub-template, and then the upper forming sub-template falls to complete the stamping action. After stamping, during the reset process, the compression spring 18 will again separate the sub-pressing plate from the corresponding upper forming sub-template to prevent adhesion.

[0021] This utility model integrates multiple stamping steps into one mold through a unified design of the stamping process of the wind turbine blade bracket. In this way, after the raw steel strip is continuously unwound into the mold from the feed port 2, it can be directly formed through multiple continuous stamping actions. Moreover, when unloading, it is directly blown out from the unloading position by a high-pressure blower. On the one hand, it realizes continuous automated processing of the wind turbine blade bracket. On the other hand, it does not require manual action or the use of a robotic arm during unloading, and the structure is simple and efficient.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A continuous punching die for a fan blade holder, characterized by, The continuous stamping die for the fan blade bracket includes an upper die and a lower die. The lower die is located directly below the upper die. The upper die includes an upper die base, an upper template, and a pressure plate. The upper die base is located above the entire die. The upper template is fixed on the upper die base. The pressure plate is suspended below the upper template by multiple sets of spring-loaded mechanisms. The lower die includes a lower die base, a lower template, and a feed port. The feed port is installed at the feed end of the lower die base. The lower template is fixed on the lower die base and located directly below the upper template. Multiple sets of floating guide pins are symmetrically arranged on both sides of the lower template. When the upper die is pressed down, the floating guide pins can pass through the through holes reserved on the pressure plate and insert into the corresponding pin holes arranged on the upper template. Along the forming path of the fan blade bracket, the upper template is sequentially arranged with a punch group, a planar forming punch, a three-dimensional forming punch, and a slitting head. The lower template surface is provided with corresponding punch forming positions, planar structure forming positions, three-dimensional structure forming positions, and unloading positions. The lower template has a through cavity below the three-dimensional stamping forming position and the unloading position. An ejector mechanism is installed in the cavity to simultaneously eject the workpieces on the three-dimensional stamping forming position and the unloading position. A high-pressure fan head is also installed on the unloading position, and the high-pressure fan head is connected to a high-pressure air source.

2. The continuous punching die for a fan blade holder according to claim 1, wherein The ejector mechanism includes a spring ejector rod and two workpiece support plates. The two workpiece support plates are symmetrically installed on both sides of the spring ejector rod and are located directly below the three-dimensional structure forming position and the unloading position, respectively.

3. The continuous punching die for a fan blade holder according to claim 1, wherein The high-pressure blower is located inside the material unloading position.

4. The continuous stamping die for the wind turbine blade bracket according to claim 1, characterized in that, The upper template is divided into three independent upper forming sub-templates in the forming sequence of the fan blade bracket from front to back. The punch assembly is arranged on the first upper forming sub-template, the planar forming punch is installed on the middle upper forming sub-template, and the three-dimensional forming punch and the slitting head are installed on the last upper forming sub-template. The pressure plate is divided into three sub-pressure plates accordingly, and the lower template is divided into three lower forming sub-templates accordingly. The punch forming position is located on the first lower forming sub-template, the planar structure forming position is located on the middle lower forming sub-template, and the three-dimensional structure forming position and the material unloading position are located on the last lower forming sub-template.

5. The continuous stamping die for the wind turbine blade support according to claim 4, characterized in that, The upper template is also equipped with at least 3 guide pillars, and at least one guide pillar is installed above each upper forming sub-template. The corresponding lower forming sub-template is provided with one-to-one guide positioning holes. When the upper mold base is pressed down, the top of the guide pillar passes through the preset through hole on the corresponding sub-press plate and is inserted into the guide positioning hole provided on the corresponding lower forming sub-template.

6. The continuous stamping die for the wind turbine blade bracket according to claim 4, characterized in that, At least two sets of spring-pressing mechanisms are installed between each upper forming sub-template and the corresponding sub-pressing block. Each set of spring-pressing mechanisms includes a spring-lifting pin with its root fixed to the upper forming sub-template and its top mounted on the corresponding sub-pressing plate, and a compression spring installed between the sub-pressing plate and the upper forming sub-template.

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