Wind power shaft die forging prefabricated blank tool
Through the design of the precast blank tooling forged wind power shafts, the problems of poor deformation of the head and rods and low material utilization in wind power shaft forging are solved, and efficient and accurate molding and material utilization are achieved, reducing processing allowance and cost .
Patent Information
- Application Number
- CN202420998748.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-10
AI Technical Summary
During the wind power shaft forging process, the deformation difference between the head and the rod is large, resulting in difficulty in forming in the closed mold, low material utilization, and the existing methods cannot effectively forge the blind holes of the head and cause large material for flashes. .
A wind power shaft die forging precast blank tool is designed, including stamping parts, forgings, tooling bodies and bases. It is processed into pre-forged parts by extrusion between stamping parts and tooling bodies, and a guide hole is stamped through the stamping head, using a connecting head Fixed connection with stamping equipment, the tool body and the base are limited by bolts or pin keys to ensure stable and precise positioning.
It improves production efficiency and molding accuracy, reduces failure rate and equipment wear, improves material utilization rate and overall processing quality, and reduces subsequent processing allowance and cost.
Smart Images
Figure CN222175815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wind power shafts, in particular to a wind power shaft die forging preform tooling. Background Art
[0002] The wind power market has a wide range of applications, and there is a huge demand for wind power shaft forgings. Wind power shafts are mainly composed of a rod and a head. The length of the rod is 1.7 to 2.3 times the length of the head, the diameter of the rod is about 50% of the diameter of the head, and the weight of the rod is about 65% of the weight of the head. During extrusion die forging, the deformation difference between the head and the rod is large, and closed die forming is somewhat difficult.
[0003] The existing wind turbine shaft forging process determines its shape according to the selected equipment. Most of them use the membrane forging method on the free forging equipment to realize the forming of the product; the model forging method is used on the screw press, etc.
[0004] The material utilization rate of the membrane forging method is about 63%. Due to the limited specifications of the raw materials, it is usually necessary to lengthen the rod, and the margin is generally large.
[0005] The material utilization rate of die forging on a screw press is about 65%, the flash consumes a large amount of material, and the blind hole in the head cannot be forged, which also occupies part of the material. Utility Model Content
[0006] The utility model provides a wind power shaft die forging preform tooling, which solves the above-mentioned technical problems.
[0007] The utility model solves the above-mentioned technical problems as follows:
[0008] A wind turbine shaft die forging preform tooling comprises a stamping part, a forging blank, a tooling body and a base, wherein the tooling body is installed in the base, a forming cavity is opened in the tooling body, a forging blank is placed in the forming cavity, a stamping part is mounted above the tooling body, a punching head is provided on the stamping part, the forging blank is processed into a preforging by extrusion of the stamping part and the tooling body, and a guide hole is punched out at the top of the preforging by the punching head.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Furthermore, a connecting head is provided at the top end of the stamping part, and the stamping part is fixedly connected to the stamping equipment via the connecting head.
[0011] The beneficial effects of adopting the above further scheme are:
[0012] Stable connection: The connector design allows the stamping parts to be directly and fixedly connected to the stamping equipment, ensuring the stability of the stamping parts during operation. This direct connection method is more reliable and can avoid loosening or falling off during operation, thus improving operational safety.
[0013] Easy operation: The connector is fixedly connected to the stamping equipment, making the installation and removal process simple and convenient. Workers only need to insert the connector into the corresponding interface or fixed point of the stamping equipment to complete the connection. There is no need for complicated operation steps, saving time and labor costs.
[0014] Improve production efficiency: The stable connection ensures the effective transmission of force and power between the stamping parts and the stamping equipment, which is conducive to improving production efficiency. The stamping equipment can apply pressure and movement to the stamping parts more stably, thereby speeding up production and reducing production cycles.
[0015] Reduced failure rate: Due to the design of the connector, the stamping parts are tightly connected to the stamping equipment, which reduces the failure rate caused by loose connection during the working process. This helps to reduce downtime and maintenance costs in production and improve the reliability and stability of the equipment.
[0016] Furthermore, the tool body is limitedly connected to the base by bolts or pin keys.
[0017] The beneficial effects of adopting the above further scheme are:
[0018] Stable connection: Use bolts or pin keys to connect the tool body and the base to ensure a firm and reliable connection between them. This limited connection method can effectively resist vibration and impact during work, ensuring that the tool body will not loosen or fall off during use, thereby improving operational safety.
[0019] Precise positioning: Bolt or pin key connection provides precise positioning function, so that the tool body can be accurately positioned on the base. By designing appropriate connection holes and threads, precise alignment between the tool body and the base can be achieved, ensuring the stability and accuracy of the tool during use.
[0020] Easy to install and disassemble: The bolt or pin connection method makes the installation and disassembly process of the tooling body and the base relatively simple and quick. Just insert the bolt or pin into the corresponding hole and tighten it to complete the connection. No complicated operation steps are required, saving time and labor costs.
[0021] Strong adjustability: By adjusting the tightness of the bolts or replacing the pins of appropriate size, the tightness of the connection between the tooling body and the base can be adjusted. This adjustability can adapt to different working scenarios and needs, ensuring the stability and reliability of the connection.
[0022] Wear and corrosion resistance: Choosing high-quality bolt or pin key materials can improve their wear and corrosion resistance, extend service life and reduce maintenance costs.
[0023] Furthermore, the stamping part is coaxial with the tooling body, and the stamping head is located on the center line of the stamping part.
[0024] The beneficial effects of adopting the above further scheme are:
[0025] Maintaining centering: Since the stamping part is coaxial with the tooling body and the punch head is located on the center line of the stamping part, it can maintain centering during the stamping process. This means that the punch head will accurately apply pressure at the center of the stamping part, ensuring the stability and accuracy of the stamping part during processing.
[0026] Improve processing accuracy: The coaxial design ensures accurate alignment between the stamping part and the punch head, which is conducive to improving processing accuracy. The punch head is located on the center line of the stamping part, which can ensure that the force applied during the stamping process is evenly distributed, reducing errors in the processing process and improving processing accuracy and consistency.
[0027] Reduce vibration and deformation: The coaxial design helps reduce vibration and deformation that may occur during the stamping process. When the punch head and the stamping part are coaxially aligned, uneven force caused by eccentricity can be avoided, reducing vibration and deformation that may occur during processing and ensuring processing quality.
[0028] Improve work efficiency: Accurate centering and stable processing help improve work efficiency. Since the punch head is located on the center line of the stamping part, the processing process is more stable, which can reduce the number of adjustments and corrections, shorten the processing cycle, and improve production efficiency.
[0029] Reduce equipment wear: The coaxial design helps reduce equipment wear. The punch head and the punching part are coaxially aligned, which can reduce unnecessary lateral force, reduce equipment wear and extend the service life of the equipment.
[0030] The beneficial effects of the utility model are:
[0031] High forming precision: The die forging prefabrication tooling is designed with a forming cavity inside to place the forging blank, which can accurately control the shape and size of the forging during the prefabrication process. Through precise forming cavity design and processing, the geometric shape and size of the prefabricated blank are ensured to meet the requirements, thereby improving the overall quality and performance of the wind turbine shaft.
[0032] High material utilization rate: The die forging prefabrication process can effectively control the flow and deformation of materials and reduce waste. The design of the prefabricated tooling takes material utilization into consideration. Through precise molding cavity design and reasonable extrusion processing, the raw materials are utilized to the maximum extent and the cost is reduced.
[0033] Strong process stability: The die forging prefabrication tooling can realize automated production and reduce the impact of human factors on process stability. The tooling itself has a stable structure, and the parameters of each link in the prefabrication process can be accurately controlled, ensuring the quality and shape of each prefabricated blank are stable and consistent.
[0034] High production efficiency: The design of prefabricated tooling takes into account the improvement of production efficiency. Through the die forging prefabrication process, batch production can be achieved, the production cycle can be shortened, and production efficiency can be improved. The structural design of the tooling and the layout of the forming cavity take into account the process optimization of the production process, making the operation simple and saving time.
[0035] Small overall machining allowance: During the prefabrication process, the pre-forging is processed by extrusion, which can control the machining allowance, reduce the subsequent processing steps, and reduce the manufacturing cost. After the preform is pre-forged, the shape and size are close to the final requirements, and only simple subsequent processing is required, such as punching out guide holes with a punch head, etc. The overall machining allowance is greatly reduced, which improves the processing efficiency.
[0036] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0038] In the attached picture:
[0039] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0040] Figure 2 It is a schematic diagram of the axial side appearance of the pre-forging of the utility model.
[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0042] 1. Connector; 2. Stamping part; 3. Stamping head; 4. Forging blank; 5. Tool body; 6. Forming cavity; 7. Base; 8. Guide hole; 9. Pre-forged part. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0044] See also Figure 1 to Figure 2 As shown, the embodiment provided by the utility model;
[0045] Embodiment 1
[0046] The wind turbine shaft die forging preform tooling comprises a stamping part 2, a forging blank 4, a tooling body 5 and a base 7. The tooling body 5 is installed in the base 7. The tooling body 5 is limitedly connected with the base 7 by bolts or pin keys. The tooling body 5 and the base 7 are connected by bolts or pin keys, which can ensure that the connection between them is firm and reliable. This limited connection method can effectively resist vibration and impact during the working process, ensure that the tooling body 5 will not loosen or fall off during use, and improve the operational safety. The bolt or pin key connection provides a precise positioning function, so that the tooling body 5 can be accurately positioned on the base 7. By designing suitable connecting holes and threads, precise alignment between the tooling body 5 and the base 7 can be achieved, ensuring the stability and accuracy of the tooling during use. The bolt or pin key connection method makes the installation and disassembly process of the tooling body 5 and the base 7 relatively simple and fast. The connection can be completed by simply inserting the bolt or pin key into the corresponding hole and then tightening it. No complicated operation steps are required, saving time and labor costs. By adjusting the tightness of the bolts or replacing the pins of appropriate size, the tightness of the connection between the tooling body 5 and the base 7 can be adjusted. This adjustability can adapt to different working scenarios and needs, ensuring the stability and reliability of the connection. Selecting high-quality bolt or pin material can improve its wear resistance and corrosion resistance, extend service life, and reduce maintenance costs. A forming cavity 6 is provided in the tooling body 5, and a forging blank 4 is placed in the forming cavity 6. A stamping part 2 is mounted above the tooling body 5. The stamping part 2 is coaxial with the tooling body 5, and the punch head 3 is located on the center line of the stamping part 2. Since the stamping part 2 is coaxial with the tooling body 5, the punch head 3 is located on the center line of the stamping part 2, so the centering during the stamping process can be maintained. This means that the punch head 3 will accurately apply pressure at the center position of the stamping part 2, ensuring the stability and accuracy of the stamping part 2 during the processing. The coaxial design ensures accurate alignment between the stamping part 2 and the punch head 3, which is conducive to improving processing accuracy. The punch head 3 is located on the center line of the stamping part 2, which can ensure that the force applied during the stamping process is evenly distributed, reduce errors in the processing process, and improve the accuracy and consistency of the processing. The coaxial design helps to reduce vibration and deformation that may occur during the stamping process. When the punch head 3 is coaxially aligned with the stamping part 2, the uneven force caused by eccentricity can be avoided, the vibration and deformation that may occur during the processing can be reduced, and the processing quality can be guaranteed. Accurate centering and stable processing help to improve work efficiency. Since the punch head 3 is located on the center line of the stamping part 2, the processing process is more stable, the number of adjustments and corrections can be reduced, the processing cycle can be shortened, and production efficiency can be improved. The coaxial design helps to reduce equipment wear.The punch head 3 is coaxially aligned with the stamping part 2, which can reduce unnecessary lateral force, reduce the degree of wear of the equipment, and extend the service life of the equipment. A connector 1 is provided at the top of the stamping part 2, and the stamping part 2 is fixedly connected to the stamping equipment through the connector 1. The design of the connector 1 allows the stamping part 2 to be directly fixedly connected to the stamping equipment, ensuring the stability of the stamping part 2 during operation. This direct connection method is more reliable and can avoid loosening or falling off during operation, thereby improving operational safety. The installation and disassembly process becomes simple and convenient by fixing the connector 1 with the stamping equipment. Workers only need to insert the connector 1 into the corresponding interface or fixed point of the stamping equipment to complete the connection, without complicated operating steps, saving time and labor costs. The stable connection method ensures the effective transmission of force and power between the stamping part 2 and the stamping equipment, which is conducive to improving production efficiency. The stamping equipment can apply pressure and action to the stamping part 2 more stably, thereby speeding up production and reducing production cycles. Due to the design of the connector 1, the stamping part 2 is tightly connected to the stamping equipment, reducing the failure rate caused by loose connection during the working process. This helps to reduce downtime and maintenance costs in production and improve the reliability and stability of the equipment. The stamping part 2 is provided with a stamping head 3, and the forging blank 4 is processed into a pre-forged part 9 by extrusion of the stamping part 2 and the tooling body 5, and the top of the pre-forged part 9 is punched out with a guide hole 8 by the stamping head 3. The shape is pre-forged by prefabrication in the mold, including the blind hole of the head. The head can be formed by upsetting during the final forging, with less overall processing allowance and high material utilization.
[0047] When the wind turbine shaft forging preform tooling according to Example 1 is used:
[0048] High forming accuracy: A forming cavity 6 is designed inside the die forging prefabrication tooling to place the forging blank 4, and the shape and size of the forging can be accurately controlled during the prefabrication process. Through the precise design and processing of the forming cavity 6, it is ensured that the geometric shape and size of the prefabricated blank meet the requirements, thereby improving the overall quality and performance of the wind turbine shaft.
[0049] High material utilization rate: The die forging prefabrication process can effectively control the flow and deformation of materials and reduce waste. The design of the prefabricated tooling takes material utilization into consideration. Through precise molding cavity design and reasonable extrusion processing, the raw materials are utilized to the maximum extent and the cost is reduced.
[0050] Strong process stability: The die forging prefabrication tooling can realize automated production and reduce the impact of human factors on process stability. The tooling itself has a stable structure, and the parameters of each link in the prefabrication process can be accurately controlled, ensuring the quality and shape of each prefabricated blank are stable and consistent.
[0051] High production efficiency: The prefabrication tooling design takes into account the improvement of production efficiency. Through the die forging prefabrication process, batch production can be achieved, the production cycle can be shortened, and production efficiency can be improved. The structural design of the tooling and the layout of the molding cavity 6 take into account the process optimization of the production process, making the operation simple and saving time.
[0052] Small overall machining allowance: During the prefabrication process, the pre-forged part 9 is extruded to control the machining allowance, reduce the subsequent processing steps, and reduce the manufacturing cost. After the preform is pre-forged, the shape and size are close to the final requirements, and only simple subsequent processing is required, such as punching out the guide hole 8 by the punch head 3, etc. The overall machining allowance is greatly reduced, which improves the processing efficiency.
[0053] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. Wind power shaft die forging preform tooling, characterized by: The invention comprises a stamping part (2), a forging blank (4), a tool body (5) and a base (7), wherein the tool body (5) is installed in the base (7), a forming cavity (6) is provided in the tool body (5), a forging blank (4) is placed in the forming cavity (6), a stamping part (2) is arranged above the tool body (5), a punching head (3) is arranged on the stamping part (2), the forging blank (4) is formed into a pre-forged part (9) by extrusion of the stamping part (2) and the tool body (5), and a guide hole (8) is punched out at the top of the pre-forged part (9) by the punching head (3).
2. The wind turbine shaft forging preform tooling according to claim 1 is characterized in that: A connecting head (1) is provided at the top end of the stamping part (2), and the stamping part (2) is fixedly connected to the stamping equipment via the connecting head (1).
3. The wind turbine shaft forging preform tooling according to claim 1 is characterized in that: The tool body (5) is position-limitedly connected to the base (7) via bolts or pin keys.
4. The wind turbine shaft forging preform tooling according to claim 1 is characterized in that: The punching part (2) is coaxial with the tool body (5), and the punching head (3) is located on the center line of the punching part (2).