Wind power flange sample saw cutting device and method thereof

Abstract

The invention relates to the technical field of wind power flange machining, in particular to a wind power flange sample saw cutting device and a method thereof.The wind power flange sample saw cutting device is provided with a bearing disc, a circular storage opening, a storage groove, a downward-pressing lifting assembly and an inward-pushing clamping cutting assembly, and the bearing disc is connected with the downward-pressing lifting assembly in a matched mode; the downward pressing and lifting assembly lifts the inward pushing, clamping and cutting assembly out of the interior of the fixed base table, it is ensured that only when a wind power flange workpiece exists on the bearing disc, the inward pushing, clamping and cutting assembly can be ejected out, cutting can be conducted, and safety is higher; secondly, the wind power flange workpiece is fixed through mutual cooperation of an external clamping mechanism and an internal pushing clamping cutting assembly above the bearing disc, the inner side and the outer side of the wind power flange workpiece can be fixed, meanwhile, the fixing positions on the inner side are the two sides of a notch, it is guaranteed that the wind power flange workpiece is still kept stable after the notch is formed, and the machining efficiency is improved. Burrs and pits at the notches are greatly reduced, and the saw cutting quality is improved.

Description

Technical Field

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

[0002] Wind turbine flanges are important load-bearing components for connecting wind turbine equipment. The macroscopic deformation and microstructural state of the ring forming process need to be strictly controlled. In order to ensure the quality of the produced wind turbine flanges, improve the manufacturing process of wind turbine flanges, improve the mechanical properties of wind turbine flanges, and provide a scientific reference basis, it is necessary to saw the produced wind turbine flange samples to verify whether the various mechanical properties of the wind turbine flanges meet the use requirements.

[0003] Regarding the sample cutting of wind turbine flanges, there are devices and methods for cutting wind turbine flange samples in the prior art, such as a device and a method for automatically cutting wind turbine flange samples using a CNC lathe disclosed in patent publication number CN114749950B. This device solves the problem that wind turbine flanges are bulky and difficult to move, and can monitor the cutting stroke of the wind turbine flange and the temperature of the cutting mechanism in real time, ensuring the safe and stable operation of the cutting mechanism and reducing the failure rate.

[0004] However, in actual use, it was found that burrs and pits appeared on the cut surfaces of the sawed specimens, which affected the subsequent mechanical properties testing of the specimens. At the same time, the saw disc was often easily damaged, and the service life of the saw disc was greatly reduced. The main reason was that during the sawing process, the wind turbine flange was fixed by setting a fixing clamp on the outer ring surface of the wind turbine flange. As a result, after a cut appeared on the wind turbine flange during the sawing process, the outer fixing clamp continued to provide inward support force toward the center of the inner ring of the wind turbine flange, causing the wind turbine flange body to loosen and shift. At this time, the cut and the saw disc shifted, resulting in a large number of burrs and pits, and even direct breakage of the saw disc. Moreover, in actual use, the saw disc is always exposed to the outside, which poses certain safety hazards.

[0005] To this end, we disclose a sawing device that can simultaneously clamp and fix the wind turbine flange workpiece inside and outside during the sawing process, and can also store the saw disc to ensure that sawing is only performed after the wind turbine flange workpiece is in place. Summary of the invention

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

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind power flange sample sawing device, comprising a fixed base, four supporting feet are arranged at the bottom of the fixed base, one end of a plurality of supporting springs is arranged on the fixed base, and the other end of the plurality of supporting springs is connected to a bearing plate for placing the wind power flange, and the bearing plate is integrally sleeved on the fixed base, a circular receiving opening is provided through the axis of the bearing plate and the fixed base, and four receiving grooves are provided in a circumferential array on the bearing plate and the fixed base outside the circular receiving opening; A downward pressing and lifting assembly is also coaxially arranged below the fixed base, and the downward pressing and lifting assembly is located on the inner sides of the four supporting feet. The downward pressing and lifting assembly includes a downward pressing mechanism, a mounting tube, a lifting seat and a supporting plate. The mounting tube is coaxially arranged below the fixed base, and the lower end of the lifting seat is coaxially inserted into the mounting tube, and the supporting plate is coaxially installed on the upper end surface of the lifting seat. Four mounting notches are symmetrically arranged around the annular surface of the mounting tube, and a transmission tooth is rotatably installed in a single mounting notch, and both sides of the transmission tooth are placed outside the mounting notch. Four lifting gear rods are symmetrically installed around the annular surface of the lower end of the lifting seat, and the lifting gear rods are meshed with one side of the transmission tooth. The pressing mechanism is installed around the outer annular surface of the installation cylinder, and the lower end of the pressing mechanism is meshed with the other side of the transmission gear, and the upper end of the pressing mechanism passes through the support plate and the fixed base and is connected to the bottom of the bearing plate; The upper end surface of the support plate is also provided with an inward pushing clamping and cutting assembly, which is lifted from the circular receiving opening and the receiving groove after being pressed down by the downward pressing and lifting assembly, and the lifted inward pushing clamping and cutting assembly is higher than the height of the supporting plate, and four external clamping mechanisms are symmetrically arranged between the gaps of the four receiving grooves on the supporting plate, and the external clamping mechanisms and the inward pushing clamping and cutting assembly are used for clamping the wind turbine flange inside and outside for sawing.

[0008] A further technical solution of the present application is as follows: the pressing mechanism includes a stabilizing block installed around the outer ring surface of the mounting cylinder, a pressing gear rod and a pressing hole inserted and slidably installed inside the stabilizing block, the lower end of the pressing gear rod is engaged with the other side of the transmission tooth, the pressing hole is opened through the supporting plate and the fixed base, and the upper end of the pressing gear rod is connected to the bottom of the supporting plate through the pressing hole.

[0009] A further technical solution of the present application is as follows: the inner push clamping and cutting assembly comprises a driving mechanism mounted on the support plate, and four clamping and cutting mechanisms mounted on the driving mechanism; The driving mechanism comprises a first driving groove, a second driving groove and a driving motor, wherein the first driving groove and the second driving groove are mutually intersected and opened on the upper end surface of the supporting plate from bottom to top, a driving motor is installed at one end inside the first driving groove and the second driving groove, a power output shaft of a single driving motor is connected to one end of a first driving screw, the other end of the first driving screw is connected to one end of a second driving screw, the outer sides of the first driving screw and the second driving screw are both threadedly connected to driving screw sleeves, and a clamping and cutting mechanism is connected above each driving screw sleeve; The first drive screw and the second drive screw have the same length and opposite outer thread directions.

[0010] A further technical solution of the present application is that limit blocks are symmetrically arranged on both sides of the single driving screw sleeve, and both ends of the limit blocks are slidably connected to the inside of the first driving groove and the second driving groove.

[0011] A further technical solution of the present application is: a single clamping and cutting mechanism includes a cutting seat, a saw disc and two storage cylinders, an installation cavity is formed inside the cutting seat, the saw disc is rotatably installed inside the installation cavity, and the two storage cylinders are symmetrically installed on both sides of the upper end of the cutting seat, a cavity is provided inside the single storage cylinder, one end of a contraction spring is connected to the bottom of the cavity, an inner push fixing rod is also inserted in the cavity, one end of the inner push fixing rod is connected to the other end of the contraction spring, and the other end of the inner push fixing rod is connected to an inner push clamping block.

[0012] A further technical solution of the present application is as follows: the external clamping mechanism includes a synchronous cylinder and a peripheral clamping plate, the number of the synchronous cylinders and the peripheral clamping plate is four, and the four synchronous cylinders are symmetrically installed in the gaps of the four storage grooves on the carrier plate, and the four peripheral clamping plates are respectively connected to the ends of the four synchronous cylinders.

[0013] A further technical solution of the present application is as follows: the inner push clamp block is in an L-shape, and the inner push clamp block fits on the inner annular surface of the wind turbine flange.

[0014] A further technical solution of the present application is as follows: a base is also provided on the outer ring at the lower end of the mounting tube, and the base is fixed to the ground by fixing bolts.

[0015] A further technical solution of the present application is that the number of transmission teeth in a single installation slot is at least one.

[0016] A method for sawing a wind turbine flange sample, 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 after lifting. After the wind turbine flange is placed on the bearing plate, the wind turbine flange's own weight presses the bearing plate down to the fixed base, and drives the downward pressing lifting assembly to press down, and lifts the inner push clamping cutting assembly from the circular receiving opening and the receiving groove, and the inner push clamping cutting assembly is lifted onto the bearing plate. At this time, the fixed base supports the bearing plate and the wind turbine flange, and at the same time, several support springs under the bearing plate are contracted to store force; Step 2: The wind turbine flange is clamped on the outer ring by the external clamping mechanism on the bearing plate to achieve positioning and fixing of the wind turbine flange; Step 3: Support and clamp both sides of the sawing part of the inner ring of the wind turbine flange by working the inner push clamping cutting assembly, and saw the sample at the same time. After the sawing is completed, retract the inner push clamping cutting assembly and take out the sawed sample; Step 4: Take out the remaining wind turbine flange. At this time, several support springs release their force to lift the carrier plate and reset it. During the reset process, press down and move the lifting assembly upward, retract the inner push clamping and cutting assembly from the circular receiving port and the receiving groove and reset it. The sample sawing is completed.

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention provides a carrying plate, a circular receiving opening, a receiving groove, a downward pressing and lifting assembly and an inner pushing clamping and cutting assembly. Firstly, the carrying plate is connected to the fixed base through a plurality of supporting springs to support and place the wind turbine flange. In the process of placing the wind turbine flange, the downward pressing and lifting assembly is connected with the carrying plate to lift the inner pushing clamping and cutting assembly out of the fixed base, ensuring that the inner pushing clamping and cutting assembly can be pushed out and cutting can be performed only when there is a wind turbine flange workpiece on the carrying plate, which is safer. Secondly, the wind turbine flange workpiece is fixed by the external clamping mechanism above the carrying plate and the inner pushing clamping and cutting assembly cooperating with each other, and the wind turbine flange workpiece can be fixed on both the inside and outside, and the inner fixing position is on both sides of the incision, and the fixing time is during sawing, so that the wind turbine flange workpiece is ensured to remain stable after the incision occurs, which greatly reduces the occurrence of burrs and pits at the incision, reduces the damage of the saw disk, and improves the quality of sawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a wind turbine flange sample sawing device provided by the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 It is a schematic diagram of the structure of the inner push clamping cutting assembly and the support plate in the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the clamping and cutting mechanism in the present invention; Figure 7 It is a structural schematic diagram of the driving mechanism in the present invention.

[0019] Explanation of the symbols in the schematic diagram: 1. Carrying plate; 2. Synchronous cylinder; 3. Outer clamp; 4. Support foot; 5. Pressing gear rod; 6. Mounting tube; 7. Mounting notch; 8. Base; 9. Transmission gear; 10. Inward push clamping cutting assembly; 11. Storage slot; 12. Stabilizing block; 13. Lifting gear rod; 14. Lifting seat; 15. Pressing hole; 16. Support spring; 17. Support plate; 18. Fixed base; 19. First driving slot; 20. Driving motor; 21. First driving screw; 22. Second driving screw; 23. Second driving slot; 24. Driving screw sleeve; 25. Limiting block; 26. Cutting seat; 27. Storage tube; 28. Contraction spring; 29. ​​Inward push clamping block; 30. Inward push fixing rod; 31. Saw disc. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0021] See also Figures 1 to 7 In one embodiment of the present application, a wind power flange sample sawing device includes a fixed base 18, four supporting feet 4 are arranged at the bottom of the fixed base 18, one end of a plurality of supporting springs 16 is arranged on the fixed base 18, and the other end of the plurality of supporting springs 16 is connected to a bearing plate 1 for placing the wind power flange, and the bearing plate 1 is integrally sleeved on the fixed base 18, a circular receiving opening is opened through the axis of the bearing plate 1 and the fixed base 18, and four receiving grooves 11 are opened in a circumferential array outside the circular receiving opening on the bearing plate 1 and the fixed base 18; A pressing and lifting assembly is also coaxially arranged below the fixed base 18, and the pressing and lifting assembly is located inside the four supporting feet 4. The pressing and lifting assembly includes a pressing mechanism, a mounting tube 6, a lifting seat 14 and a supporting plate 17. The mounting tube 6 is coaxially arranged below the fixed base 18, and the lower end of the lifting seat 14 is coaxially inserted into the mounting tube 6, and the supporting plate 17 is coaxially installed on the upper end surface of the lifting seat 14. Four mounting notches 7 are symmetrically opened around the annular surface of the mounting tube 6, and a transmission tooth 9 is rotatably installed in a single mounting notch 7, and the two sides of the transmission tooth 9 are placed outside the mounting notch 7. Four lifting gear rods 13 are symmetrically installed around the annular surface of the lower end of the lifting seat 14, and the lifting gear rod 13 is meshed with one side of the transmission tooth 9; The pressing mechanism is installed around the outer annular surface of the installation cylinder 6, and the lower end of the pressing mechanism is meshed with the other side of the transmission gear 9, and the upper end of the pressing mechanism passes through the support plate 17 and the fixed base 18 and is connected to the bottom of the carrier plate 1; The upper end surface of the lifting seat 14 is also provided with an inner push clamping and cutting assembly 10. The inner push clamping and cutting assembly 10 is lifted from the circular receiving opening and the receiving groove 11 after being pressed down by the downward pressing lifting assembly, and the lifted inner push clamping and cutting assembly 10 is higher than the height of the supporting plate 1. Four external clamping mechanisms are symmetrically arranged between the gaps between the four receiving grooves 11 on the supporting plate 1. The external clamping mechanism and the inner push clamping and cutting assembly 10 are used for sawing the wind turbine flange after clamping it inside and outside.

[0022] Furthermore, the number of the transmission tooth 9 in a single mounting slot 7 is at least one.

[0023] This embodiment is implemented as follows: during sawing, the wind turbine flange of the sample to be sawed is hoisted by an external hoisting device, and is placed on the bearing plate 1 after hoisting. After the wind turbine flange is placed on the bearing plate 1, the wind turbine flange is pressed down by its own weight to be close to the fixed base 18, and the pressing and lifting assembly is driven to be pressed down. During the pressing process, the pressing mechanism drives the transmission gear 9 to rotate, and at the same time, the other side of the transmission gear 9 drives the four lifting gear rods 13 to move up. The number of transmission teeth 9 is a plurality, which ensures that during the upward movement of the lifting gear rod 13, it will be gradually Gradually contact each transmission tooth 9, ensuring that the lifting gear rod 13 will not be separated from the transmission gear 9 during the entire upward movement, ensuring the stability of the lifting, and the lifting seat 14 and the lifting plate will be driven to move upward during the upward movement of the lifting gear rod 13, thereby lifting the inner push clamping cutting assembly 10 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 bearing plate 1 and the wind turbine flange are supported by the fixed base 18, and at the same time, a number of support springs 16 under the bearing plate 1 are contracted to store force; 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. 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.

[0024] 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.

[0025] 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.

[0026] 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; The driving mechanism includes a first driving groove 19, a second driving groove 23 and a driving motor 20, wherein the first driving groove 19 and the second driving groove 23 are cross-connected with each other from bottom to top and are arranged on the upper end surface of the supporting plate 17, and the driving motor 20 is installed at one end of the first driving groove 19 and the second driving groove 23, and 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, and the outer sides of the first driving screw 21 and the second driving screw 22 are both threadedly connected with a driving screw sleeve 24, and a clamping and cutting mechanism is connected above each of the single driving screw sleeves 24; The first driving screw 21 and the second driving screw 22 have the same length and opposite outer thread directions.

[0027] Furthermore, limit blocks 25 are symmetrically arranged on both sides of the 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 .

[0028] Furthermore, a single clamping and cutting mechanism includes a cutting seat 26, a saw disc 31 and two storage tubes 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 storage tubes 27 are symmetrically installed on both sides of the upper end of the cutting seat 26, a single storage tube 27 is provided with a cavity inside, one end of a contraction spring 28 is connected to the bottom of the cavity, an inner push fixing rod 30 is also inserted in the cavity, one end of the inner push fixing rod 30 is connected to the other end of the contraction spring 28, and the other end of the inner push fixing rod 30 is connected to an inner push clamping block 29.

[0029] Furthermore, the inner push clamp block 29 is L-shaped, and the inner push clamp block 29 is attached to the inner annular surface of the wind turbine flange.

[0030] This embodiment is implemented as follows: for the inner push clamping cutting assembly 10, a first driving groove 19 and a second driving groove 23 are cross-arranged, and a driving motor 20 is installed inside the two driving grooves. The power output shaft of a single driving motor 20 is connected to a first driving screw 21, and the first driving screw 21 is connected to the second driving screw 22. The driving motor 20 works to drive the first driving screw 21 and the second driving screw 22 to rotate. During the rotation of the two screws, the driving screw sleeves 24 connected to the outer sides of each screw are synchronously driven to rotate, and the two sides of the single driving screw sleeve 24 are Limit blocks 25 are provided, and the limit blocks 25 slide inside the driving grooves where they are located to limit the rotation of the driving screw sleeves 24, so that the driving screw sleeves 24 can move outside the driving screws to which they are connected, and the first driving screw 21 and the second driving screw 22 in the same driving groove have the same length and opposite outer thread directions, which ensures that the two driving screw sleeves 24 in the same driving groove will move in opposite directions. During the movement, the clamping and cutting mechanisms to which they are connected are driven to move, and then the clamping and cutting mechanisms work to fix and cut the inner side of the wind turbine flange.

[0031] The clamping and cutting mechanism uses a cutting seat 26 to install a saw disc 31. The saw disc 31 is installed inside the installation cavity inside the cutting seat 26. During the movement of the cutting seat 26, the two storage cylinders 27 symmetrically arranged above the cutting seat 26 will also move synchronously. The storage cylinder 27 is connected to one end of a contraction spring 28. An inner push fixing rod 30 is also inserted into the storage cylinder 27. Due to its length, the inner push fixing rod 30 will contact the inner ring surface of the wind turbine flange in advance. Then the cutting seat 26 continues to move to make the saw disc 31 contact the inner ring of the wind turbine flange for sawing. At this time, the inner push fixing rod 30 will drive the contraction spring 28 to contract and store force, and at the same time, push the fixing rod 30 inwards to the inside of the storage tube 27. This process is maintained continuously and the pressure is gradually increased, which ensures that as the incision becomes deeper and deeper from the inside to the outside, the fixing force is also increasing. This ensures that both sides of the saw disk 31, that is, both sides of the incision are stable, and ensures that the outward supporting force provided by the clamping and cutting mechanism can be offset to a certain extent with the inward supporting force provided by the external clamping mechanism. It should be noted that this has no effect on whether the inward supporting force provided by the external clamping mechanism is continuous or fixed. In this way, the stability of the wind turbine flange is achieved, which ensures that the incision will not be offset and reduces the generation of burrs and pits.

[0032] The contact between the inner push fixing rod 30 and the wind turbine flange is completed by the inner push clamping block 29, and the shape of the inner push clamping block 29 can be set to be L-shaped to ensure that the lower end of the inner push clamping block 29 can stably contact the inner annular surface of the wind turbine flange.

[0033] See also Figures 1 to 7As 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 cylinder 2 and the peripheral clamping plate 3 is four, and the four synchronous cylinders 2 are symmetrically installed in the gaps of the four receiving grooves 11 on the supporting plate 1, and the four peripheral clamping plates 3 are respectively connected to the ends of the four synchronous cylinders 2.

[0034] Furthermore, a base 8 is provided on the outer ring at the lower end of the mounting tube 6, and the base 8 is fixed to the ground by fixing bolts.

[0035] This embodiment is implemented as follows: for the external clamping mechanism, the use of a synchronous cylinder 2 and an outer clamping plate 3 can ensure that multiple synchronous cylinders 2 work synchronously, clamp and correct the wind turbine flange, and the outer clamping plate 3 can better contact the outer cylindrical surface of the wind turbine flange; and the outer ring at the lower end of the mounting tube 6 is also provided with a base 8, and the base 8 is fixed to the ground by fixing bolts to ensure the stable operation of the downward pressure lifting assembly and prevent the mounting tube 6 from lifting itself, causing the inner push clamping and cutting assembly 10 to be unable to be stably lifted.

[0036] See also Figures 1 to 7 , a method for a wind turbine flange sample sawing device of the present invention, 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 lifting. 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, and lifts the inner push clamping cutting assembly 10 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, several support springs 16 under the bearing plate 1 are contracted to store force; Step 2: The external clamping mechanism on the carrier plate 1 is operated to clamp the outer ring of the wind turbine flange to achieve positioning and fixing of the wind turbine flange; Step 3: The inner push clamping cutting assembly 10 is operated to support and clamp the two sides of the sawing part of the inner ring of the wind turbine flange, and the sample is sawed at the same time. After the sawing is completed, the inner push clamping cutting assembly 10 is retracted and the sawed sample is taken out; Step 4: Take out the remaining wind turbine flange. At this time, several support springs 16 release their force to lift and reset the carrier plate 1. During the reset process, press down and move the lifting assembly upward to retract the inner push clamping cutting assembly 10 from the circular receiving opening and the receiving groove 11 to reset the sample. The sample sawing is completed.

[0037] In summary, the present invention is provided with a bearing plate 1, a circular receiving opening, a receiving groove 11, a downward pressing and lifting assembly and an inner pushing clamping and cutting assembly 10. First, the bearing plate 1 is connected to the fixed base 18 through a plurality of supporting springs 16 to support and place the wind turbine flange. In the process of placing the wind turbine flange, the bearing plate 1 is connected with the downward pressing and lifting assembly to realize the downward pressing and lifting assembly to lift the inner pushing clamping and cutting assembly 10 out of the fixed base 18, ensuring that the inner pushing clamping and cutting assembly can be lifted out of the fixed base 18 only when there is a wind turbine flange workpiece on the bearing plate 1. The part 10 is pushed out before cutting can be carried out, which is safer; secondly, the fixing of the wind power flange workpiece is achieved through the cooperation of the external clamping mechanism above the supporting plate 1 and the inner push clamping and cutting component 10, which can fix the wind power flange workpiece on both sides inside and outside, and the inner fixing position is on both sides of the incision, and the timing of fixing is during sawing. In this way, the wind power flange workpiece is guaranteed to remain stable after the incision occurs, which greatly reduces the occurrence of burrs and pits at the incision, reduces the damage of the saw disk 31, and improves the quality of sawing.

[0038] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wind turbine flange sample sawing device, comprising a fixed base (18), wherein the bottom of the fixed base (18) is provided with four supporting legs (4), characterized in that: One end of a plurality of support springs (16) is disposed on the fixed base (18), and the other end of the plurality of support springs (16) is connected to a bearing plate (1) for placing a wind turbine flange, and the bearing plate (1) is integrally sleeved on the fixed base (18), a circular receiving opening is provided through the axis of the bearing plate (1) and the fixed base (18), and four receiving grooves (11) are provided in a circumferential array outside the circular receiving opening on the bearing plate (1) and the fixed base (18); A downward pressing and lifting assembly is also coaxially arranged below the fixed base (18), and the downward pressing and lifting assembly is located on the inner side of the four supporting feet (4). The downward pressing and lifting assembly comprises a downward pressing mechanism, a mounting tube (6), a lifting seat (14) and a supporting plate (17). The mounting tube (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 tube (6), and the supporting plate (17) is coaxially installed on the upper end surface of the lifting seat (14). Four mounting notches (7) are symmetrically opened around the annular surface of the mounting tube (6), and a transmission tooth (9) is rotatably installed in a single mounting notch (7), and the two sides of the transmission tooth (9) are placed outside the mounting notch (7). Four lifting gear rods (13) are symmetrically installed around the annular surface of the lower end of the lifting seat (14), and the lifting gear rods (13) are meshed with one side of the transmission tooth (9); The pressing mechanism is installed around the outer annular surface of the installation cylinder (6), and the lower end of the pressing mechanism is meshed with the other side of the transmission tooth (9), and the upper end of the pressing mechanism passes through the support plate (17) and the fixed base (18) and is connected to the bottom of the carrier plate (1); The upper end surface of the support plate (17) is also provided with an inner push clamping and cutting assembly (10), and the inner push clamping and cutting assembly (10) is lifted from the circular receiving opening and the receiving groove (11) after being pressed down by the downward pressing and lifting assembly, and the lifted inner push clamping and cutting assembly (10) is higher than the height of the carrier plate (1), and four external clamping mechanisms are symmetrically arranged between the gaps of the four receiving grooves (11) on the carrier plate (1), and the external clamping mechanisms and the inner push clamping and cutting assembly (10) are used to clamp the wind turbine flange inside and outside and then saw it; The inward-pushing clamping and cutting assembly (10) comprises a driving mechanism mounted on a supporting plate (17), and four clamping and cutting mechanisms mounted on the driving mechanism; A single clamping cutting mechanism comprises a cutting seat (26), a saw disc (31) and two storage tubes (27); a mounting cavity is formed inside the cutting seat (26); the saw disc (31) is rotatably mounted inside the mounting cavity, and the two storage tubes (27) are symmetrically mounted on both sides of the upper end of the cutting seat (26); a cavity is arranged inside the single storage tube (27); one end of a contraction spring (28) is connected to the bottom of the cavity; an inner push fixing rod (30) is also inserted into the cavity; one end of the inner push fixing rod (30) is connected to the other end of the contraction spring (28); and the other end of the inner push fixing rod (30) is connected to an inner push clamping block (29).

2. A wind turbine flange sample sawing device according to claim 1, characterized in that: 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. A wind turbine flange sample sawing device 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 thread directions in opposite directions.

4. A wind turbine flange sample sawing device according to claim 3, characterized in that: 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. A wind turbine flange sample sawing device according to claim 1, characterized in that: 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. A wind turbine flange sample sawing device 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. A wind turbine flange sample sawing device according to claim 1, characterized in that: 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. A wind turbine flange sample sawing device 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 sawing a wind turbine flange sample, characterized in that: A wind turbine flange sample sawing device applied to any one of claims 1 to 9, 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: The external clamping mechanism on the carrier plate (1) is operated to clamp the outer ring of the wind turbine flange, thereby achieving positioning and fixing of the wind turbine flange; Step 3: The inner push clamping cutting assembly (10) is operated to support and clamp the two sides of the sawing position of the inner ring of the wind turbine flange, and the sample is sawed at the same time. After the sawing is completed, the inner push clamping cutting assembly (10) is retracted to take out the sawed sample; Step 4: Take out the remaining wind turbine flange. At this time, the support springs (16) release their force, lift the carrier plate (1) and reset it. During the reset process, press down and move the lifting assembly upward, and retract the inner push clamping cutting assembly (10) from the circular receiving opening and the receiving groove (11) to reset it. The sample sawing is completed.

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