High-power wind power fanning strip progressive punching die

Abstract

The utility model relates to the technical field of wind power fanning strip progressive punching dies, in particular to a high-power wind power fanning strip progressive punching die which comprises a die body composed of a multi-station upper die base and a multi-station lower die base. A guide hole stamping station, a cramp groove stamping station, a first idle step, a groove profile stamping station, a second idle step and a blanking station are sequentially arranged on the die body; the multi-station lower die holder is provided with a concave die block at each station, and a plurality of concave die blocks form a concave die set; a male die set corresponding to the female die set is arranged on the station upper die plate, and guide nails are arranged on the positions, on the two sides of the cramp groove stamping station, the two sides of the first idle step, the two sides of the groove type stamping station, the two sides of the second idle step and the two sides of the blanking station, of the station upper die plate. Complicated shapes are punched out in several steps, finally, appearance downward leakage type automatic output groove scrap waste materials are also discharged and collected, the die manufacturing difficulty is lowered, the rigidity strength of a die cutting edge is improved, the die material returning force is reduced, the total punching pressure is lowered, and the total service life of the die is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine fan-shaped sheet stage punching dies, in particular to a high-power wind turbine fan-shaped sheet stage punching die. Background Art

[0002] With the rapid development of wind power technology, wind power generation has become an important part of global renewable energy. As the core component of wind turbines, the design, manufacturing and performance of wind turbine blades are directly related to the overall efficiency and service life of wind turbines. Wind turbine blades usually adopt fan-shaped or trapezoidal designs to optimize the capture and conversion efficiency of wind energy.

[0003] Direct-drive fan-shaped pieces are currently produced using a full-repetitive punching process and are manufactured using a large-stroke single-point press. The punching frequency is 30 times / minute, resulting in low production efficiency, concentrated force on the mold, a short life span after one sharpening, and a prominent bottleneck in large-scale industrial production. Direct-drive fan-shaped pieces are currently produced using a full-repetitive punching process and are manufactured using a large-stroke single-point press. The punching frequency is 30 times / minute, resulting in low production efficiency, concentrated force on the mold, a short life span after one sharpening, and a prominent bottleneck in large-scale industrial production.

[0004] Therefore, it is particularly important to design a high-power wind turbine fan-shaped sheet stage punching die to change the above technical defects and improve the overall practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a high-power wind turbine fan-shaped sheet progressive punching die to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-power wind turbine fan-shaped sheet progressive punching die comprises a die body consisting of a multi-station upper die base and a multi-station lower die base; the die body is sequentially provided with a guide hole punching station, a clip slot punching station, a first idle step, a slot stamping station, a second idle step and a blanking station; the multi-station lower die base is provided with a concave module at each station, and a plurality of concave modules constitute a concave die group; the multi-station upper die base is provided with a convex die group corresponding to the concave die group, and the station upper die base is provided with guide pins on both sides of the clip slot punching station, the first idle step, the slot stamping station, the second idle step and the blanking station.

[0008] As a preferred solution of the present invention, the top of the multi-station lower die base is provided with several outer guide column sleeves, and one side of the outer guide column sleeve is provided with an inner guide column sleeve; one end of the multi-station lower die base is provided with a waste cutting lower die, the top of the die group is provided with a stop plate, and the stop plate is provided with several avoidance grooves, and the top of the stop plate is provided with a multi-station upper die base; one end of the multi-station upper die base is connected to the waste cutting upper die; the bottom of the multi-station upper die base is provided with several outer guide columns, and one side of the outer guide columns is provided with an inner guide column.

[0009] As a preferred solution of the present invention, the die group includes several die blocks, each of which is provided with a stamping groove of different sizes; the punch group includes several punch blocks, each of which is adapted to the stamping groove; and the stop plate is provided with a clearance opening for avoiding the punch blocks; the die group and the punch group are respectively connected to the multi-station lower die base and the multi-station upper die base by bolts.

[0010] As a preferred solution of the present invention, the die set and the punch set are made of high-quality hard alloy material, and the surfaces of the die set and the punch set are titanium-plated.

[0011] As a preferred solution of the present invention, a discharge port is provided on the top of the multi-station lower mold base, a pad is provided on the top of the discharge port, a discharge plate is provided on the top of the pad, the discharge plate is fixedly connected to the multi-station upper mold base, and the discharge plate passes through the avoidance groove.

[0012] As a preferred solution of the present invention, a plurality of disc springs are provided at the bottom end of the multi-station upper die base.

[0013] As a preferred solution of the present invention, an oil groove is provided on the unloading plate and the oil groove is centrally arranged in a wave shape. An oil guide hole is provided on the unloading plate for filling. The stop plate is connected to the multi-station lower mold base by bolts.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with a pilot hole punching station, a buckle slot punching station, a first idle step, a slot punching station, a second idle step and a blanking station on the die body, so that a complex shape is punched out in several steps, and finally the shape is dropped and the slot chips are automatically discharged and the waste is collected, which reduces the difficulty of die manufacturing, improves the rigidity of the die cutting edge, reduces the die ejection force, reduces the total stamping pressure, and increases the total life of the die.

[0016] 2. In the utility model, the holes are punched with guide pins first, and then the punch group and the die group are precisely aligned with each other as the feeder steps forward. The guide pins guide the position of the sector piece, and the disc springs reduce vibration and protect the mold. After the stamping is completed, the discharge plate pushes out the formed piece, the wave oil groove lubricates and reduces wear, and the upper and lower dies for cutting waste are used to cut off the waste. This solves the problems of low production efficiency of the mold, concentrated force on the mold, and prominent bottlenecks in large-scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the fan-shaped piece mold station layout

[0018] Figure 2 It is a planar structural diagram of the entire utility model;

[0019] Figure 3 A schematic diagram of the overall plane of the present invention;

[0020] Figure 4 This is a schematic diagram of the overall disassembled structure of the utility model;

[0021] In the figure: 1. Multi-station lower die base; 11. Guide hole punching station; 12. Buckle slot punching station; 13. First idle step; 14. Slot punching station; 15. Second idle step; 16. Blanking station; 101. Outer guide pin sleeve; 103. Inner guide pin sleeve; 104. Concave die group; 105. Lower die for waste cutting; 106. Stop plate; 107. Avoidance groove; 108. Upper multi-station die base; 109. Punch die group; 110. Upper die for waste cutting; 111. Outer guide pin; 112. Inner guide pin. DETAILED DESCRIPTION

[0022] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. Several embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0026] See Figure 1-2 The high-power wind turbine fan-shaped sheet progressive punching die of this embodiment includes a die body composed of a multi-station upper die base 108 and a multi-station lower die base 1; the die body is sequentially provided with a guide hole stamping station 11, a clip groove stamping station 12, a first empty step 13, a slot stamping station 14, a second empty step 15 and a blanking station 16; the multi-station lower die base 1 is provided with a concave module at each station, and a plurality of concave modules constitute a concave die group 104; the multi-station lower die base 1 is provided with a punch group 109 corresponding to the concave die group 104, and the station upper die base 1 is provided with guide pins on both sides of the clip groove stamping station 12, the first empty step 13, the slot stamping station 14, the second empty step 15 and the blanking station 16.

[0027] The utility model provides a guide hole punching station, a buckle slot punching station, a first empty step, a slot punching station, a second empty step and a blanking station on the die body, so that complex shapes can be punched out in several steps, thereby reducing the difficulty of die manufacturing, improving the rigidity of the die cutting edge, reducing the die ejection force, reducing the total stamping pressure, and increasing the total life of the die.

[0028] The provision of the first idle step 13 and the second idle step 15 increases the strength and rigidity of the mold, ensuring the life of the mold and product quality. The idle stations reduce the pressure and load during continuous processing, avoid interference between molded parts, and protect various parts of the mold from damage, thereby enhancing the durability and stability of the mold.

[0029] First, the fan-shaped sheet material to be processed is placed on the multi-station lower die base 1 through an external servo feeder to ensure that the material is correctly aligned. Then the multi-station upper die base 108 is driven down by a press. The first step is to punch the guide holes on both sides. The second step is that as the feeder sends one step, the guide pins at the second station first accurately guide and position the guide holes. The subsequent stations are analogous to this. The punch group 109 is accurately aligned with the die blocks in the die group 104. Each punch block enters the corresponding stamping groove to stamp the fan-shaped sheet material. At the same time, during the stamping process, the first station punches out the second set of guide holes to guide the fan-shaped sheet and stabilize its position.

[0030] The working process of the utility model is as follows: when using this kind of high-power wind turbine fan-shaped sheet progressive punching die, first, the fan-shaped sheet material to be processed is placed on the multi-station lower die base 1 through an external servo feeder to ensure that the material is correctly aligned, and then the multi-station upper die base 108 is driven down by a press. In the first step, the fan-shaped sheet material is punched out with a guide hole at the guide hole punching station 11, and the feeder conveys the punched material for a step distance, and the guide pins are accurately guided and positioned at the buckle sheet slot punching station 12. The punch and die of this station cooperate to punch out the buckle sheet slot, and the guide hole punching station 11 punches the guide hole at the same time as the buckle sheet slot, and the feeder continues to convey the material for a step distance, and then the guide pins are pressed at the buckle sheet slot punching station 12. At the first empty step 13, the guide pins are used for guidance, and this station does not participate in the stamping of the material. At the same time, the buckle slot stamping station 12 punches the buckle slot on the delivered material, and the guide hole stamping station 11 also punches the guide holes on the delivered material at the same time. The material continues to be transported forward, and the subsequent stations are analogous. At each station, the guide pins are first accurately guided and positioned, and then the punch group 109 is accurately aligned with the die blocks in the die group 104 to stamp the fan-shaped sheet material. At the same time, during the stamping process, the first station punches out the second set of guide holes at the same time, which are used to adapt the guide pins and punching holes in the subsequent process, guide the fan-shaped sheet, and stabilize its position. Example 2

[0031] like Figure 3 and 4 In this embodiment, a plurality of outer guide column sleeves 101 are provided at the top of the multi-station lower die base 1, an inner guide column sleeve 103 is provided on one side of the outer guide column sleeve 101, a concave die group 104 is provided on the top of the multi-station lower die base 1, a waste cutting lower die 105 is provided at one end of the multi-station lower die base 1, a stop plate 106 is provided on the top of the concave die group 104, a plurality of avoidance grooves 107 are provided on the stop plate 106, a multi-station upper die base 108 is provided on the top of the stop plate 106, a punch group 109 is provided at the bottom of the multi-station upper die base 108, one end of the multi-station upper die base 108 is connected to the waste cutting upper die 110, a plurality of outer guide columns 111 are provided at the bottom of the multi-station upper die base 108, and an inner guide column 112 is provided on one side of the outer guide column 111.

[0032] The die set 104 includes several die blocks, each of which is provided with a punching groove of different sizes. The punch set 109 includes several punch blocks, which are adapted to the punching grooves, and the stop plate 106 is provided with an avoidance opening for avoiding the punch blocks. The die set 104 and the punch set 109 are respectively connected to the multi-station lower die base 1 and the multi-station upper die base 108 by bolts, which is convenient for replacement after the die set is damaged. The die set 104 and the punch set 109 are made of high-quality carbide material, and the surfaces of the die set 104 and the punch set 109 are titanium-plated to extend the service life of the die set. A discharge port is provided on the top of the multi-station lower die base 1, and a pad is provided on the top of the discharge port. A discharge plate is provided on the top of the pad, which is fixedly connected to the multi-station upper die base 108, and the discharge plate passes through the avoidance groove 107, and the finished product is unloaded through the discharge plate. A number of disc springs are provided at the bottom end of the multi-station upper die base 108, and a number of guide pins are provided on the bottom surface of the multi-station upper die base 108. The vibration between the components is alleviated by the disc springs, and the guide holes are punched out on both sides of the fan-shaped piece through the guide pin punch, and then the guide pins are used for precise correction. An oil groove is provided on the discharge plate, and the oil groove is wavy and centered. An oil guide hole is provided on the discharge plate for filling, which delays and reduces edge wear. The stop plate 106 is connected to the multi-station lower die base 1 by bolts to ensure the smooth progress of the stamping process.

[0033] During the stamping process of this embodiment, the disc spring effectively alleviates the impact vibration between the multi-station upper die base 108 and the multi-station lower die base 1, protecting the die from damage. After the third step of stamping is completed, the unloading plate pushes the formed fan-shaped piece out of the die group 104 to complete the unloading action. At the same time, the wavy oil groove on the unloading plate is filled with lubricating oil through the oil guide hole, which effectively delays and reduces the wear of the die cutting edge, thereby improving the service life and stamping accuracy of the die. Finally, the waste cutting upper die 110 cooperates with the waste cutting lower die 105 to cut and separate the waste generated during the stamping process, keeping the working area clean. During the entire work process, the outer guide pin 111 and the inner guide pin 112 as well as the outer guide pin sleeve 101 and the inner guide pin sleeve 103 ensure the precise guidance and smooth operation between the multi-station upper die base 108 and the multi-station lower die base 1, thereby ensuring the accuracy and stability of stamping.

[0034] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is controlled by a controller, and the control circuit of the controller can be realized through simple circuit connection by technicians in this field. It is common knowledge in this field, so this application document will no longer explain the control method and circuit connection in detail.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-power wind turbine fan-shaped sheet progressive punching die, characterized by: The invention comprises a die body consisting of a multi-station upper die base (108) and a multi-station lower die base (1); the die body is provided with a guide hole punching station (11), a buckle slot punching station (12), a first empty step (13), a slot punching station (14), a second empty step (15) and a blanking station (16) in sequence; the multi-station lower die base (1) is provided with a concave module at each station, and a plurality of concave modules constitute a concave die group (104); a convex die group (109) corresponding to the concave die group (104) is provided on the station upper die base, and the multi-station lower die base (1) is provided with guide pins on both sides of the buckle slot punching station (12), the first empty step (13), the slot punching station (14), the second empty step (15) and the blanking station (16).

2. The high-power wind turbine fan-shaped sheet progressive punching die according to claim 1, characterized in that: The top of the multi-station lower die base (1) is provided with a plurality of outer guide column sleeves (101), and one side of the outer guide column sleeve (101) is provided with an inner guide column sleeve (103); one end of the multi-station lower die base (1) is provided with a waste cutting lower die (105), the top of the die group (104) is provided with a stop plate (106), the stop plate (106) is provided with a plurality of avoidance grooves (107), and the top of the stop plate (106) is provided with a multi-station upper die base (108); one end of the multi-station upper die base (108) is connected to the waste cutting upper die (110); the bottom of the multi-station upper die base (108) is provided with a plurality of outer guide columns (111), and one side of the outer guide columns (111) is provided with an inner guide column (112).

3. A high-power wind turbine fan-shaped sheet progressive punching die according to claim 2, characterized in that: The die set (104) includes a plurality of die blocks, each of which is provided with a punching groove of different sizes. The punch set (109) includes a plurality of punch blocks, each of which is adapted to the punching groove. The stop plate (106) is provided with a clearance opening for avoiding the punch blocks. The die set (104) and the punch set (109) are respectively connected to the multi-station lower die base (1) and the multi-station upper die base (108) by bolts.

4. A high-power wind turbine fan-shaped sheet progressive punching die according to claim 3, characterized in that: The concave die set (104) and the convex die set (109) are made of high-quality hard alloy material, and the surfaces of the concave die set (104) and the convex die set (109) are titanium-plated.

5. The high-power wind turbine fan-shaped sheet progressive punching die according to claim 1, characterized in that: A discharge port is provided at the top of the multi-station lower die base (1), a pad is provided at the top of the discharge port, a discharge plate is provided at the top of the pad, the discharge plate is fixedly connected to the multi-station upper die base (108), and the discharge plate passes through the avoidance groove (107).

6. A high-power wind turbine fan-shaped sheet progressive punching die according to claim 5, characterized in that: An oil groove is provided on the discharge plate and is centrally arranged in a wave shape. An oil guide hole is provided on the discharge plate for filling the oil. The stop plate (106) is connected to the multi-station lower die base (1) by bolts.

7. The high-power wind turbine fan-shaped piece progressive punching die according to claim 4, characterized in that: The bottom end of the multi-station upper die base (108) is provided with a plurality of disc springs.

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