A wind power flange specimen sawing device and its method

Abstract

The present invention relates to the technical field of wind power flange processing. More specifically, the present invention provides a wind power flange specimen sawing device and method. By setting a bearing plate, a circular storage opening, a storage groove, a pressing and lifting component, and an inner pushing and clamping cutting component, through the cooperative connection between the bearing plate and the pressing and lifting component, the pressing and lifting component can lift the inner pushing and clamping cutting component out of the fixed base, ensuring that only when there is a wind power flange workpiece on the bearing plate can the inner pushing and clamping cutting component be pushed out for cutting, which is safer. Secondly, the fixation of the wind power flange workpiece is achieved through the mutual cooperation of the external clamping mechanism above the bearing plate and the inner pushing and clamping cutting component, which can fix the wind power flange workpiece on both the inner and outer sides. At the same time, the inner fixation position is on both sides of the cut, ensuring that the wind power flange workpiece remains stable after the cut, significantly reducing the appearance of burrs and pits at the cut, and improving the quality of sawing.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power flange processing, and more specifically, to a wind power flange specimen sawing device and method thereof. Background Technique

[0002] Wind power flanges are important load-bearing components for connecting wind power equipment. It is necessary to strictly control the macroscopic deformation and microscopic tissue state during the ring forming process of the ring. In order to ensure the quality of the produced wind power flanges, improve the manufacturing process of the wind power flanges, improve the mechanical properties of the wind power flanges, and provide a scientific reference basis, it is necessary to saw the specimens of the produced wind power flanges to verify whether the mechanical properties of the wind power flanges meet the usage requirements.

[0003] Regarding the sawing of wind power flange specimens, there are already devices and methods for cutting wind power flange specimens in the prior art. For example, a device and method for automatically cutting wind power flange specimens on a numerically controlled lathe disclosed in Patent Publication No. CN114749950B solves the problem that wind power flanges are heavy and difficult to move, can monitor the cutting stroke of the wind power flange and the temperature of the cutting mechanism in real time, ensures the safe and stable operation of the cutting mechanism, and reduces the failure rate.

[0004] However, it is found in the actual use process that burrs and pits appear on the cut surfaces of the sawn specimen samples, which affects the subsequent mechanical property testing of the specimen samples. At the same time, the saw blade is often easily damaged, and the service life of the saw blade is greatly reduced. The main reason is that during the sawing process, the wind power flange is fixed by setting a fixed fixture on the outer ring surface of the wind power flange. This causes the outer fixed fixture to continue to provide an inward support force towards the center of the inner ring of the wind power flange after the cut appears on the wind power flange during the sawing process, resulting in loosening and offset of the wind power flange body. At this time, the cut and the saw blade are offset, resulting in a large number of burrs and pits, and even directly causing the saw blade to break; moreover, in the actual use process, the saw blade is always exposed, which poses a certain safety hazard.

[0005] Therefore, we disclose a sawing device that can clamp and fix the wind power flange workpiece both inside and outside during the sawing process, and can also store the saw blade to ensure that sawing is only carried out after the wind power flange workpiece is in place. Summary of the Invention

[0006] The purpose of the present invention is to provide a wind power flange specimen sawing device to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present invention provides the following technical solution: A sawing device for a wind power flange specimen, comprising a fixed base platform, four support feet are provided at the bottom of the fixed base platform, one ends of a number of support springs are provided on the fixed base platform, and the other ends of the number of support springs are connected to a bearing plate for placing the wind power flange, and the bearing plate is integrally sleeved on the fixed base platform. A circular storage opening is penetrated through the centers of the bearing plate and the fixed base platform, and four storage grooves are circumferentially arranged on the bearing plate and the fixed base platform outside the circular storage opening;

[0008] A pressing and lifting assembly is also coaxially arranged below the fixed base platform. The pressing and lifting assembly is located inside the four support feet. The pressing and lifting assembly includes a pressing mechanism, an installation cylinder, a lifting seat and a support plate. The installation cylinder is coaxially arranged below the fixed base platform, and the lower end of the lifting seat is coaxially inserted into the interior of the installation cylinder. The support plate is coaxially installed on the upper end surface of the lifting seat. Four installation slots are symmetrically arranged around the circumferential surface of the installation cylinder. A transmission gear is rotatably installed in a single installation slot, and both sides of the transmission gear are placed outside the installation slot. Four lifting toothed rods are symmetrically installed around the circumferential surface of the lower end of the lifting seat, and the lifting toothed rods are meshed with one side of the transmission gear;

[0009] The pressing mechanism is installed around the circumferential surface of the outer ring of the installation cylinder, and the lower end of the pressing mechanism is meshed with the other side of the transmission gear. The upper end of the pressing mechanism penetrates through the support plate and the fixed base platform and is connected to the bottom of the bearing plate;

[0010] An inner pushing, clamping and cutting assembly is also provided on the upper end surface of the support plate. The inner pushing, clamping and cutting assembly is lifted from the circular storage opening and the storage grooves after being pressed by the pressing and lifting assembly, and the lifted inner pushing, clamping and cutting assembly is higher than the height of the bearing plate. Four external clamping mechanisms are symmetrically arranged between the gaps of the four storage grooves on the bearing plate. The external clamping mechanisms and the inner pushing, clamping and cutting assembly are used for sawing after clamping the inside and outside of the wind power flange.

[0011] A further technical solution of the present application: The pressing mechanism includes a stabilizing block installed around the circumferential surface of the outer ring of the installation cylinder, a pressing toothed rod inserted and slidably installed inside the stabilizing block, and a pressing hole. The lower end of the pressing toothed rod is meshed with the other side of the transmission gear. The pressing hole is penetrated through the support plate and the fixed base platform, and the upper end of the pressing toothed rod is connected to the bottom of the bearing plate through the pressing hole.

[0012] A further technical solution of the present application: The inner pushing, clamping and cutting assembly includes a driving mechanism installed on the support plate, and four clamping and cutting mechanisms installed on the driving mechanism;

[0013] The driving mechanism includes a first driving groove, a second driving groove and a driving motor. The first driving groove and the second driving groove are intersecting with each other from bottom to top and are formed on the upper end surface of the support disk. One end inside the first driving groove and the second driving groove is equipped with a driving motor. The power output shaft of a single driving motor is connected to one end of a first driving screw, and the other end of the first driving screw is connected to one end of a second driving screw. Both the outer sides of the first driving screw and the second driving screw are threadedly connected with driving nuts, and a clamping and cutting mechanism is connected above each driving nut.

[0014] The first driving screw and the second driving screw have the same length, and the thread directions on their outer sides are opposite.

[0015] A further technical solution of the present application: Limiting blocks are symmetrically arranged on both sides of each driving nut, and both ends of the limiting blocks are slidably connected inside the first driving groove and the second driving groove.

[0016] A further technical solution of the present application: Each clamping and cutting mechanism includes a cutting seat, a saw blade and two receiving cylinders. An installation cavity is formed inside the cutting seat. The saw blade is rotatably installed inside the installation cavity, and two receiving cylinders are symmetrically installed on both sides of the upper end of the cutting seat. A cavity is arranged inside each receiving cylinder. One end of a compression spring is connected to the bottom inside the cavity. An inner pushing fixing rod is also inserted inside the cavity, and one end of the inner pushing fixing rod is connected to the other end of the compression spring. The other end of the inner pushing fixing rod is connected to an inner pushing clamping block.

[0017] A further technical solution of the present application: The external clamping mechanism includes a synchronous cylinder and an outer peripheral clamping plate. The number of the synchronous cylinders and the outer peripheral clamping plates is four. The four synchronous cylinders are symmetrically installed in the gaps of the four receiving grooves on the bearing disk, and the four outer peripheral clamping plates are respectively connected to the ends of the four synchronous cylinders.

[0018] A further technical solution of the present application: The inner pushing clamping block is in an L shape, and the inner pushing clamping block fits above the inner ring surface of the wind power flange.

[0019] A further technical solution of the present application: A base is also arranged on the outer ring of the lower end of the installation cylinder, and the base is fixed to the ground through fixing bolts.

[0020] A further technical solution of the present application: The number of transmission teeth in a single installation notch is at least one.

[0021] A method for a wind power flange specimen sawing device, the method includes the following steps:

[0022] Step 1: Use an external lifting device to lift the wind power flange to be sampled and place it on the bearing plate. After the wind power flange is placed on the bearing plate, the bearing plate is pressed down by the weight of the wind power flange itself and approaches the fixed base, driving the downward pressure lifting component to press down, and pushing the inner pushing clamping and cutting component out from the circular storage opening and the storage groove. The inner pushing clamping and cutting component rises onto the bearing plate. At this time, the fixed base supports the bearing plate and the wind power flange, and at the same time, several support springs below the bearing plate contract and store energy;

[0023] Step 2: Operate the external clamping mechanism on the bearing plate to clamp the outer ring of the wind power flange to achieve positioning and fixing of the wind power flange;

[0024] Step 3: Operate the inner pushing clamping and cutting component to support and clamp both sides of the inner ring sawing area of the wind power flange, and simultaneously perform sample sawing. After sawing is completed, retract the inner pushing clamping and cutting component and take out the sawing sample;

[0025] Step 4: Take out the remaining wind power flange. At this time, several support springs release force to lift the bearing plate back to its original position. During the reset process, the downward pressure lifting component moves upward to retract the inner pushing clamping and cutting component from the circular storage opening and the storage groove back to its original position, and the sample sawing is completed.

[0026] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0027] By setting the bearing plate, circular storage opening, storage groove, downward pressure lifting component and inner pushing clamping and cutting component, first, the bearing plate is connected to the fixed base through several support springs to support and place the wind power flange. During the process of placing the wind power flange, through the cooperative connection between the bearing plate and the downward pressure lifting component, the downward pressure lifting component is enabled to lift the inner pushing clamping and cutting component out from the inside of the fixed base, ensuring that only when there is a wind power flange workpiece on the bearing plate can the inner pushing clamping and cutting component be pushed out and cutting can be carried out, which is safer. Secondly, for the fixation of the wind power flange workpiece, it is achieved through the mutual cooperation of the external clamping mechanism above the bearing plate and the inner pushing clamping and cutting component, which can fix the wind power flange workpiece on both the inner and outer sides. At the same time, the inner fixing position is on both sides of the cut, and the fixing timing is during sawing. In this way, it is ensured that the wind power flange workpiece remains stable after the cut appears, significantly reducing the appearance of burrs and pits at the cut, reducing the situation of saw blade damage, and improving the quality of sawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of a wind power flange sample sawing device provided by the present invention;

[0029] Figure 2 is the side view structural schematic diagram of the present invention;

[0030] Figure 3 is a schematic cross-sectional structure diagram of the present invention;

[0031] Figure 4 is a schematic three-dimensional structure diagram of the present invention;

[0032] Figure 5 is a schematic structure diagram of the inner pushing clamping and cutting assembly and the support disk in the present invention;

[0033] Figure 6 is a schematic cross-sectional structure diagram of the clamping and cutting mechanism in the present invention;

[0034] Figure 7 is a schematic structure diagram of the driving mechanism in the present invention.

[0035] Explanation of the reference numerals in the schematic diagram:

[0036] 1. Bearing disk; 2. Synchronous cylinder; 3. Peripheral clamping plate; 4. Support feet; 5. Lower pressing tooth bar; 6. Installation cylinder; 7. Installation notch; 8. Base; 9. Transmission tooth; 10. Inner pushing clamping and cutting assembly; 11. Storage groove; 12. Stabilizing block; 13. Lifting tooth bar; 14. Lifting seat; 15. Lower pressing hole; 16. Support spring; 17. Support disk; 18. Fixed base; 19. First driving groove; 20. Driving motor; 21. First driving screw; 22. Second driving screw; 23. Second driving groove; 24. Driving nut; 25. Limiting block; 26. Cutting seat; 27. Storage cylinder; 28. Compression spring; 29. Inner pushing clamping block; 30. Inner pushing fixing rod; 31. Saw disk. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be further described below in conjunction with the embodiments.

[0038] Please refer to Figures 1 to 7 , in an embodiment of the present application, a wind power flange specimen sawing device includes a fixed base 18. Four support feet 4 are provided at the bottom of the fixed base 18. One end of a plurality of support springs 16 is provided on the fixed base 18, and the other end of the plurality of support springs 16 is connected to a bearing disk 1 for placing the wind power flange. The bearing disk 1 is integrally sleeved on the fixed base 18. A circular storage opening is penetrated through the centers of the bearing disk 1 and the fixed base 18, and four storage grooves 11 are circumferentially arranged on the bearing disk 1 and the fixed base 18 outside the circular storage opening;

[0039] A downward pressing and lifting assembly is also coaxially arranged below the fixed base 18. The downward pressing and lifting assembly is located inside the four supporting feet 4. The downward pressing and lifting assembly includes a downward pressing mechanism, a mounting cylinder 6, a lifting seat 14 and a supporting disc 17. The mounting cylinder 6 is coaxially arranged below the fixed base 18, and the lower end of the lifting seat 14 is coaxially inserted into the interior of the mounting cylinder 6. The supporting disc 17 is coaxially mounted on the upper end surface of the lifting seat 14. Four mounting notches 7 are symmetrically arranged around the circumferential surface of the mounting cylinder 6. A transmission gear 9 is rotatably mounted in a single mounting notch 7, and both sides of the transmission gear 9 are located outside the mounting notch 7. Four lifting rack bars 13 are symmetrically mounted around the circumferential surface of the lower end of the lifting seat 14. The lifting rack bars 13 are meshed with one side of the transmission gear 9;

[0040] The downward pressing mechanism is mounted around the outer circumferential surface of the mounting cylinder 6, and the lower end of the downward pressing mechanism is meshed with the other side of the transmission gear 9. The upper end of the downward pressing mechanism penetrates through the supporting disc 17 and the fixed base 18 and is connected to the bottom of the bearing disc 1;

[0041] An inner pushing, clamping and cutting assembly 10 is further arranged on the upper end surface of the lifting seat 14. The inner pushing, clamping and cutting assembly 10 is lifted from the circular storage opening and the storage groove 11 after being pressed down by the downward pressing and lifting assembly. And the lifted inner pushing, clamping and cutting assembly 10 is higher than the height of the bearing disc 1. Four external clamping mechanisms are symmetrically arranged on the bearing disc 1 at the gaps between the four storage grooves 11. The external clamping mechanisms and the inner pushing, clamping and cutting assembly 10 are used for sawing after clamping the inside and outside of the wind power flange.

[0042] Furthermore, the number of the transmission gears 9 in a single mounting notch 7 is at least one.

[0043] This embodiment is implemented as follows: During sawing, the wind power flange to be sawn is lifted by an external hoisting device and placed on the bearing disc 1 after being lifted. After the wind power flange is placed on the bearing disc 1, the bearing disc 1 is pressed down close to the fixed base 18 by the weight of the wind power flange itself, and the downward pressing and lifting assembly is driven to press down. During the pressing-down process, the downward pressing mechanism will drive the transmission gear 9 to rotate, and at the same time, the other side of the transmission gear 9 will drive the four lifting rack bars 13 to move upward. And the number of the transmission gears 9 is several, which ensures that during the upward movement of the lifting rack bars 13, they will gradually contact each transmission gear 9, ensuring that the lifting rack bars 13 will not be disengaged from the transmission gear 9 during the entire upward movement process, ensuring the stability of the lifting. During the upward movement of the lifting rack bars 13, the lifting seat 14 and the lifting disc will be driven to move upward together, thereby jacking up the inner pushing, clamping and cutting assembly 10 from the circular storage opening and the storage groove 11. The inner pushing, clamping and cutting assembly 10 rises onto the bearing disc 1. At this time, the fixed base 18 supports the bearing disc 1 and the wind power flange, and at the same time, several support springs 16 below the bearing disc 1 contract and store energy;

[0044] Then, the external clamping mechanism on the carrier plate 1 works to clamp the outer ring of the wind turbine flange to achieve the positioning and fixing of the wind turbine flange. The next step is to perform sample sawing on the wind turbine flange. The sawing operation is performed by the inner push clamping and cutting assembly 10, and while performing sample sawing, the two sides of the inner ring of the wind turbine flange are supported and clamped to ensure the stability of the wind turbine flange during the sawing process. After the sawing is completed, the inner push clamping and cutting assembly 10 is retracted to take out the sawed sample.

[0045] The remaining wind turbine flange is taken out, and at this time, several supporting springs 16 release their force to lift and reset the carrier plate 1. During the reset process, the downward pressing lifting assembly moves upward, and the inner push clamping cutting assembly 10 is retracted and reset from the circular receiving opening and the receiving groove 11, and the sample sawing is completed.

[0046] See also Figure 1 , Figure 2 and Figure 3 As a preferred embodiment of the present application, the pressing mechanism includes a stabilizing block 12 installed around the outer ring surface of the mounting tube 6, a pressing gear rod 5 and a pressing hole 15 inserted and slidably installed inside the stabilizing block 12, the lower end of the pressing gear rod 5 is engaged with the other side of the transmission tooth 9, the pressing hole 15 is opened through the supporting plate 17 and the fixed base 18, and the upper end of the pressing gear rod 5 is connected to the bottom of the supporting plate 1 through the pressing hole 15.

[0047] This embodiment is implemented as follows: During actual use, the pressing mechanism is realized by the stabilizing block 12 installed around the outer ring surface of the mounting tube 6, cooperating with the pressing gear rod 5 which is inserted and slides inside, and the lower end of the pressing gear rod 5 is meshed with the side of the transmission tooth 9, while the upper end of the pressing gear rod 5 is connected to the bottom of the supporting plate 1, ensuring that during the downward movement of the supporting plate 1, the pressing gear rod 5 will move downward smoothly inside the stabilizing block 12 and drive the transmission tooth 9 to rotate, and during the rotation of the transmission tooth 9, the lifting gear rod 13 meshed with it on the other side moves up, thereby lifting the support plate 17 and the inner push clamping cutting assembly 10 onto the supporting plate 1, and the pressing holes 15 that are opened through the support plate 17 and the fixed base 18 are to ensure that the movement of the pressing gear rod 5 will not be blocked or affected.

[0048] See also Figures 1 to 7 , as a preferred embodiment of the present application, the inner push clamping and cutting assembly 10 includes a driving mechanism mounted on the support plate 17, and four clamping and cutting mechanisms mounted on the driving mechanism;

[0049] The driving mechanism includes a first driving groove 19, a second driving groove 23 and a driving motor 20. The first driving groove 19 and the second driving groove 23 are arranged vertically and intersect with each other on the upper end surface of the support disc 17. At one end inside the first driving groove 19 and the second driving groove 23, a driving motor 20 is installed. One end of the power output shaft of a single driving motor 20 is connected to one end of a first driving screw 21, and the other end of the first driving screw 21 is connected to one end of a second driving screw 22. The outer sides of the first driving screw 21 and the second driving screw 22 are both threadedly connected with driving nuts 24, and a clamping and cutting mechanism is connected above each driving nut 24;

[0050] The first driving screw 21 and the second driving screw 22 are of the same length and have opposite thread directions on the outer sides.

[0051] Furthermore, limit blocks 25 are symmetrically arranged on both sides of each driving nut 24, and both ends of the limit blocks 25 are slidably connected inside the first driving groove 19 and the second driving groove 23.

[0052] Furthermore, each clamping and cutting mechanism includes a cutting seat 26, a saw disc 31 and two receiving cylinders 27. An installation cavity is formed inside the cutting seat 26. The saw disc 31 is rotatably installed inside the installation cavity, and the two receiving cylinders 27 are symmetrically installed on both sides of the upper end of the cutting seat 26. A cavity is provided inside each receiving cylinder 27. One end of a compression spring 28 is connected to the bottom inside the cavity, and an inner pushing fixing rod 30 is also inserted into the cavity. One end of the inner pushing fixing rod 30 is connected to the other end of the compression spring 28, and the other end of the inner pushing fixing rod 30 is connected to an inner pushing clamping block 29.

[0053] Furthermore, the inner pushing clamping block 29 is in an L shape and fits above the inner ring surface of the wind power flange.

[0054] This embodiment is implemented as follows: For the internal push clamping and cutting assembly 10, the first drive groove 19 and the second drive groove 23 are arranged crosswise. A drive motor 20 is installed inside the two drive grooves. The power output shaft of a single drive motor 20 is connected to the first drive screw 21. The first drive screw 21 is connected to the second drive screw 22. When the drive motor 20 works, it drives the first drive screw 21 and the second drive screw 22 to rotate. During the rotation of the two screws, they will synchronously drive the drive nuts 24 connected to their respective outsides to rotate. Limiting blocks 25 are arranged on both sides of a single drive nut 24. The limiting blocks 25 slide inside the drive grooves where they are located to limit the rotation of the drive nut 24, so as to realize the movement of the drive nut 24 on the outside of the drive screw to which it is connected. Moreover, the lengths of the first drive screw 21 and the second drive screw 22 inside the same drive groove are the same, and the outer thread directions are opposite, ensuring that the two drive nuts 24 inside the same drive groove will move in opposite directions. During the movement, they drive the clamping and cutting mechanisms connected to them to move. Subsequently, the clamping and cutting mechanisms work to fix and cut the inner side of the wind power flange.

[0055] The clamping and cutting mechanism adopts the cutting seat 26 to install the saw blade 31. The saw blade 31 is installed inside the installation cavity of the cutting seat 26. During the movement of the cutting seat 26, the two receiving cylinders 27 symmetrically arranged above the cutting seat 26 will also move synchronously. One end of the contraction spring 28 is connected inside the receiving cylinder 27. An internal push fixing rod 30 is also inserted inside the receiving cylinder 27. Due to its length, the internal push fixing rod 30 will come into contact with the inner ring surface of the wind power flange in advance. Subsequently, the cutting seat 26 continues to move to bring the saw blade 31 into contact with the inner ring of the wind power flange for sawing. At this time, the internal push fixing rod 30 will drive the contraction spring 28 to contract and store energy. At the same time, the internal push fixing rod 30 is retracted into the receiving cylinder 27. This process is continuously maintained and the pressure is gradually increased. This also ensures that while the incision becomes deeper from the inside to the outside, the fixing force also becomes greater. In this way, both sides of the saw blade 31, that is, both sides of the incision, are stable, ensuring that the outward supporting force provided by the clamping and cutting mechanism can offset a certain amount of the inward supporting force provided by the external clamping mechanism. It should be noted that whether the inward supporting force provided by the external clamping mechanism is continuous or fixed has no impact. In this way, the stability of the wind power flange is achieved, ensuring that the incision will not shift, and reducing the generation of burrs and pits.

[0056] Moreover, the contact between the internal push fixing rod 30 and the wind power flange is completed by the internal push clamping block 29. The shape of the internal push clamping block 29 can be set as an L shape to ensure that the lower end of the internal push clamping block 29 can stably contact the inner ring surface of the wind power flange.

[0057] Please refer to Figures 1 to 7, as a preferred embodiment of the present application, the external clamping mechanism includes a synchronous cylinder 2 and a peripheral clamping plate 3. The number of the synchronous cylinders 2 and the peripheral clamping plates 3 is four. The four synchronous cylinders 2 are symmetrically installed in the gaps of the four receiving grooves 11 on the bearing plate 1, and the four peripheral clamping plates 3 are respectively connected to the ends of the four synchronous cylinders 2.

[0058] Furthermore, a base 8 is also provided on the outer ring at the lower end of the installation cylinder 6, and the base 8 is fixed to the ground by fixing bolts.

[0059] This embodiment is implemented as follows: For the external clamping mechanism, the use of the synchronous cylinder 2 and the peripheral clamping plate 3 can ensure the synchronous operation of multiple synchronous cylinders 2, clamp and correct the wind power flange, and the peripheral clamping plate 3 can better contact the outer circular surface of the wind power flange; and a base 8 is also provided on the outer ring at the lower end of the installation cylinder 6, and the base 8 is fixed to the ground by fixing bolts, which ensures the stable operation of the pressing and lifting assembly and prevents the installation cylinder 6 from lifting itself, resulting in the inability of the inner pushing clamping and cutting assembly 10 to be stably lifted.

[0060] Please refer to Figures 1 to 7 , a method for a wind power flange sample sawing device of the present invention, the method includes the following steps:

[0061] Step 1: Lift the wind power flange to be sampled by an external hoisting device, and place it on the bearing plate 1 after lifting. After the wind power flange is placed on the bearing plate 1, the bearing plate 1 is pressed down close to the fixed base 18 by the weight of the wind power flange itself, and drives the pressing and lifting assembly to press down, pushing the inner pushing clamping and cutting assembly 10 out of the circular receiving opening and the receiving groove 11. The inner pushing clamping and cutting assembly 10 rises to the bearing plate 1. At this time, the fixed base 18 supports the bearing plate 1 and the wind power flange, and at the same time, several support springs 16 below the bearing plate 1 contract and store energy;

[0062] Step 2: The external clamping mechanism on the bearing plate 1 works to clamp the outer ring of the wind power flange to achieve positioning and fixing of the wind power flange;

[0063] Step 3: The inner pushing clamping and cutting assembly 10 works to support and clamp both sides of the inner ring sawing part of the wind power flange, and at the same time perform sample sawing. After sawing is completed, the inner pushing clamping and cutting assembly 10 is retracted, and the sawing sample is taken out;

[0064] Step 4: Take out the remaining wind power flange. At this time, several support springs 16 release force to lift the bearing plate 1 to reset. During the reset process, the pressing and lifting assembly moves up to retract and reset the inner pushing clamping and cutting assembly 10 from the circular receiving opening and the receiving groove 11, and the sample sawing is completed.

[0065] In summary, the present invention is provided with a bearing plate 1, a circular storage opening, a storage groove 11, a pressing and lifting assembly, and an inward pushing, clamping and cutting assembly 10. First, the bearing plate 1 is connected to the fixed base 18 through a plurality of support springs 16 to support and place the wind power flange. During the process of placing the wind power flange, through the cooperative connection between the bearing plate 1 and the pressing and lifting assembly, the pressing and lifting assembly lifts the inward pushing, clamping and cutting assembly 10 out of the fixed base 18, ensuring that only when there is a wind power flange workpiece on the bearing plate 1 can the inward pushing, clamping and cutting assembly 10 be ejected and cutting can be carried out, which is safer. Secondly, the fixation of the wind power flange workpiece is achieved through the mutual cooperation of the external clamping mechanism above the bearing plate 1 and the inward pushing, clamping and cutting assembly 10, which can fix the wind power flange workpiece on both the inner and outer sides. At the same time, the inner fixing position is on both sides of the cut, and the fixing timing is during sawing. In this way, it is ensured that the wind power flange workpiece remains stable after the cut is made, significantly reducing the appearance of burrs and pits at the cut, reducing the damage of the saw blade 31, and improving the quality of sawing.

[0066] The above schematically describes the present invention and its implementation manners. This description is not restrictive, and only one of the implementation manners of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if an ordinary technician in the art is inspired by it and designs a structural manner and an embodiment similar to this technical solution without creative work without departing from the purpose of the present invention's creation, it shall fall within the protection scope of the present invention.

[0067] In addition, it should be understood that although this specification is described according to implementation manners, not every implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A sawing device for a wind power flange specimen, comprising a fixed base (18), and four supporting feet (4) are arranged at the bottom of the fixed base (18), and it is characterized in that: One end of a plurality of support springs (16) is arranged on the fixed base (18), and the other ends of the plurality of support springs (16) are connected to a bearing plate (1) for placing a wind power flange. The bearing plate (1) is integrally sleeved on the fixed base (18). A circular storage opening is formed through the centers of the bearing plate (1) and the fixed base (18). Four storage grooves (11) are circumferentially arranged on the bearing plate (1) and the fixed base (18) outside the circular storage opening. A pressing and lifting assembly is coaxially arranged below the fixed base (18). The pressing and lifting assembly is located inside the four support feet (4). The pressing and lifting assembly includes a pressing mechanism, an installation cylinder (6), a lifting seat (14), and a support plate (17). The installation cylinder (6) is coaxially arranged below the fixed base (18). The lower end of the lifting seat (14) is coaxially inserted into the interior of the installation cylinder (6). The support plate (17) is coaxially installed on the upper end surface of the lifting seat (14). Four installation notches (7) are symmetrically arranged around the circumferential surface of the installation cylinder (6). A transmission gear (9) is rotatably installed in a single installation notch (7), and both sides of the transmission gear (9) are located outside the installation notch (7). Four lifting racks (13) are symmetrically installed around the circumferential surface of the lower end of the lifting seat (14). The lifting rack (13) is engaged with one side of the transmission gear (9). The pressing mechanism is installed around the outer circumferential surface of the installation cylinder (6), and the lower end of the pressing mechanism is engaged with the other side of the transmission gear (9). The upper end of the pressing mechanism penetrates through the support plate (17) and the fixed base (18) and is connected to the bottom of the bearing plate (1). An inner pushing, clamping, and cutting assembly (10) is further arranged on the upper end surface of the support plate (17). The inner pushing, clamping, and cutting assembly (10) is lifted from the circular storage opening and the storage grooves (11) after being pressed by the pressing and lifting assembly. The lifted inner pushing, clamping, and cutting assembly (10) is higher than the height of the bearing plate (1). Four external clamping mechanisms are symmetrically arranged on the bearing plate (1) at the gaps between the four storage grooves (11). The external clamping mechanisms and the inner pushing, clamping, and cutting assembly (10) are used for sawing after clamping the wind power flange inside and outside. The inner pushing, clamping, and cutting assembly (10) includes a driving mechanism installed on the support plate (17), and four clamping and cutting mechanisms installed on the driving mechanism. A single clamping and cutting mechanism includes a cutting seat (26), a saw disc (31), and two storage cylinders (27). An installation cavity is formed inside the cutting seat (26). The saw disc (31) is rotatably installed inside the installation cavity. The two storage cylinders (27) are symmetrically installed on both sides of the upper end of the cutting seat (26). A cavity is arranged inside a single storage cylinder (27). One end of a contraction spring (28) is connected to the bottom inside the cavity. An inner pushing fixed rod (30) is also inserted into the cavity, and one end of the inner pushing fixed rod (30) is connected to the other end of the contraction spring (28). The other end of the inner pushing fixed rod (30) is connected to an inner pushing clamp block (29).

2. The wind power flange specimen sawing device according to claim 1, wherein, The pressing mechanism comprises a stabilizing block (12) mounted around the outer annular surface of the mounting tube (6), a pressing gear rod (5) inserted and slidably mounted inside the stabilizing block (12), and a pressing hole (15), wherein the lower end of the pressing gear rod (5) is meshed with the other side of the transmission tooth (9), the pressing hole (15) is penetrated and opened on the supporting plate (17) and the fixed base (18), and the upper end of the pressing gear rod (5) is connected to the bottom of the supporting plate (1) through the pressing hole (15).

3. The sawing device for a wind power flange specimen according to claim 1, characterized in that, The driving mechanism comprises a first driving groove (19), a second driving groove (23) and a driving motor (20); the first driving groove (19) and the second driving groove (23) are mutually intersecting and arranged on the upper end surface of the supporting plate (17) from bottom to top; a driving motor (20) is installed at one end of the first driving groove (19) and the second driving groove (23); a power output shaft of a single driving motor (20) is connected to one end of a first driving screw (21); the other end of the first driving screw (21) is connected to one end of a second driving screw (22); the outer sides of the first driving screw (21) and the second driving screw (22) are both threadedly connected to driving screw sleeves (24); and the upper side of each driving screw sleeve (24) is connected to a clamping and cutting mechanism; The first driving screw (21) and the second driving screw (22) have the same length and have outer threads in opposite directions.

4. The sawing device for a wind power flange specimen according to claim 3, wherein, Limit blocks (25) are symmetrically arranged on both sides of a single driving screw sleeve (24), and both ends of the limit blocks (25) are slidably connected to the inside of the first driving groove (19) and the second driving groove (23).

5. The sawing device for a wind power flange specimen according to claim 1, wherein The external clamping mechanism comprises a synchronous cylinder (2) and an outer clamping plate (3), wherein the number of the synchronous cylinder (2) and the outer clamping plate (3) is four, and the four synchronous cylinders (2) are symmetrically installed in the gaps between the four receiving grooves (11) on the carrier plate (1), and the four outer clamping plates (3) are respectively connected to the ends of the four synchronous cylinders (2).

6. The sawing device for a wind power flange specimen according to claim 1, characterized in that, The inner push clamp block (29) is in an L-shape, and the inner push clamp block (29) is fitted onto the inner annular surface of the wind turbine flange.

7. The sawing device for a wind power flange specimen according to claim 1, wherein, The outer ring at the lower end of the installation cylinder (6) is also provided with a base (8), and the base (8) is fixed to the ground by fixing bolts.

8. The sawing device for a wind power flange specimen according to claim 1, characterized in that, The number of the transmission tooth (9) in a single installation slot (7) is at least one.

9. A method for a sawing device of a wind power flange specimen, characterized in that, A wind turbine flange sample sawing device applied to any one of claims 1 to 8, the method comprising the following steps: Step 1: lift the wind turbine flange that needs to be sampled by external lifting equipment, and place it on the bearing plate (1). After the wind turbine flange is placed on the bearing plate (1), the wind turbine flange's own weight presses the bearing plate (1) down to the fixed base (18), and drives the downward pressing lifting assembly to press down, so that the inner push clamping cutting assembly (10) is lifted from the circular receiving opening and the receiving groove (11), and the inner push clamping cutting assembly (10) is lifted onto the bearing plate (1). At this time, the fixed base (18) supports the bearing plate (1) and the wind turbine flange, and at the same time, a plurality of support springs (16) below the bearing plate (1) are contracted to store force; Step 2: Operate the external clamping mechanism on the carrier plate (1) to clamp the outer ring of the wind power flange, realizing the positioning and fixing of the wind power flange; Step 3: Operate the inner-pushing clamping and cutting assembly (10) to support and clamp both sides of the inner ring sawing position of the wind power flange, and simultaneously perform sample sawing. After sawing is completed, retract the inner-pushing clamping and cutting assembly (10) and take out the sawed sample; Step 4: Take out the remaining wind power flanges. At this time, the force of several support springs (16) is released to lift the carrier plate (1) to reset. During the reset process, the downward pressing and lifting assembly moves upward to retract the inner-pushing clamping and cutting assembly (10) from the circular storage opening and the storage groove (11) for reset, and the sample sawing is completed.

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