Drilling device for wind power tower drum flange production

Abstract

The invention relates to the technical field of wind power tower drum manufacturing, and discloses a drilling device for wind power tower drum flange production, which comprises a base, a portal frame mounted on the outer wall of the base and a machine body mounted on the outer wall of the portal frame, a grinding head is mounted on a main shaft of the machine body, a drill bit is fixedly connected to the bottom end of the grinding head, and a plurality of sliding grooves are formed in the outer wall of the grinding head. According to the invention, through the close cooperation of the linkage rotating mechanism and the positioning rotating mechanism, the multiple clamping blocks are driven to synchronously approach the flange main body, the driving wheel firstly contacts the circumferential outer wall of the flange main body, under the continuous action of the linkage rotating mechanism, the flange main body reversely pushes the driving wheel, and the driving wheel pushes the inclined block through the sliding rod I; the inclined block is matched with the lever to enable the second sliding rod to drive the lower pressing wheel to press downwards, linkage limiting of the driving wheel and the lower pressing wheel on the periphery and the upper portion of the flange body is achieved, the flange body is stabilized, displacement shaking is effectively prevented, and the stability of the device is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine tower manufacturing, and in particular to a drilling device for producing wind turbine tower flanges. Background Art

[0002] In the current booming wind power industry, wind turbine towers are the key supporting structures of wind power generation systems. The processing quality of their flanges plays a decisive role in the stability and safety of the entire wind power equipment. In the production process of wind turbine flanges, opening holes and grooves on their surfaces is an essential and important process. At present, in actual drilling operations, it is often necessary to drill holes at different positions of wind turbine flanges. However, the existing fixing device lacks a rotation function, which makes it impossible to flexibly adjust the position of the wind turbine flange during the drilling process. This causes operators to frequently disassemble and reinstall the wind turbine flange when facing different drilling positions. This not only increases the complexity and tediousness of the operation, but also greatly wastes time and labor costs, seriously affecting the drilling efficiency of the wind turbine flange. Furthermore, existing drilling devices require additional processes and equipment to polish away burrs on the hole edges after drilling. This not only increases production processes and costs, but also reduces production efficiency. Furthermore, due to manual labor or equipment precision issues, this separate polishing process may not guarantee that burrs on every hole are evenly and thoroughly polished away, impacting the quality and subsequent performance of the flange. Therefore, a drilling device for wind turbine tower flange production was proposed to address this issue. Summary of the Invention

[0003] The main purpose of the present invention is to provide a drilling device for producing wind turbine tower flanges, aiming to effectively solve the problems raised in the above-mentioned background technology.

[0004] The present application provides a drilling device for wind turbine tower flange production using the following technical solutions: A drilling device for producing wind turbine tower flanges, comprising a base, a gantry mounted on the outer wall of the base, and a body mounted on the outer wall of the gantry, wherein a grinding head is mounted on the main shaft of the body, a drill bit is fixedly connected to the bottom end of the grinding head, a plurality of slide grooves are formed on the outer wall of the grinding head, a plurality of milling cutters are slidably connected to the inner walls of the plurality of slide grooves, a mounting cavity connected to the plurality of slide grooves is provided inside the grinding head, and a chamfering mechanism for driving the plurality of milling cutters to freely extend and retract is installed inside the mounting cavity; A plurality of fixing seats are fixedly connected to the top outer wall of the base, and the plurality of fixing seats are evenly distributed in a circular array with equal spacing. A flange body is placed above the plurality of fixing seats, and a positioning and rotating mechanism is installed on the outer wall of the fixing seat for synchronously limiting the upper and peripheral positions of the flange body and driving the flange body to rotate; A linkage rotation mechanism is installed on the bottom outer wall of the base, and the linkage rotation mechanism is used to drive multiple groups of positioning mechanisms to operate synchronously.

[0005] Preferably, the positioning and rotating mechanism includes a driving wheel, a sliding rod, an inclined block, a lever and a lower pressure wheel, the driving wheel is rotatably connected to one end of the sliding rod through an axle frame, the driving wheel fits into the circumferential outer wall of the flange body, the sliding rod is slidably connected to the outer wall of the clamping block, and the inclined block is fixedly connected to the end of the sliding rod away from the driving wheel, the outer wall of the sliding rod is sleeved with a spring, and the spring is located between the axle frame and the clamping block.

[0006] Preferably, the top outer wall of the clamping block is slidably connected to a slide rod 2, the lower pressure wheel is rotatably connected to the bottom end of the slide rod 2, the lower pressure wheel fits against the top outer wall of the flange body, the outer wall of the slide rod 2 is sleeved with a spring 2, one end of the spring 2 is fixedly connected to the top outer wall of the clamping block, and the other end is fixedly connected to the outer wall of the slide rod 2.

[0007] Preferably, the lever is rotatably connected to the inner wall of the clamping block through an axle pin, and one end of the lever is rotatably connected to a pulley, which abuts against the inclined surface of the inclined block. A movable groove is provided on the outer wall of the other end of the lever, and the lever is movably connected to the top end of the slide rod 2 through the movable groove.

[0008] Preferably, a self-locking motor is fixedly mounted on the bottom outer wall of the shaft frame, and the output shaft end of the self-locking motor passes through the shaft frame and is fixedly connected to the axis of the driving wheel.

[0009] Preferably, the chamfering mechanism includes a bidirectional screw rotatably connected to the inside of the installation cavity, the outer wall of the bidirectional screw is symmetrically threaded with two nut rings, the outer wall of the nut ring is rotatably connected with multiple connecting rods, and each upper and lower two connecting rods are hinged to the outer wall of the milling cutter at one end away from the nut ring, and a micro motor is also fixedly installed inside the grinding head, and the end of the output shaft of the micro motor is fixedly connected to one end of the bidirectional screw.

[0010] Preferably, the linked rotating mechanism includes a rotating disk rotatably connected to the bottom outer wall of the base through a fixed shaft, the outer wall of the rotating disk is provided with a plurality of arc-shaped inclined grooves, the bottom middle outer wall of the rotating disk is fixedly connected to a worm gear, the bottom outer wall of the base is rotatably connected to a worm through two shaft seats, the worm gear is meshed with the worm gear, and the bottom outer wall of the base is also fixedly mounted with a stepper motor through a mounting bracket, and the end of the output shaft of the stepper motor is fixedly connected to one end of the worm gear.

[0011] Preferably, the outer walls of the plurality of fixed seats are provided with limiting grooves, the outer wall of the base is provided with a plurality of avoidance grooves, the avoidance grooves correspond to the limiting grooves, the bottom outer wall of the clamping block is fixedly connected with a moving rod, the moving rod is slidably connected to the inner walls of the limiting grooves and the avoidance grooves, and its bottom end is slidably connected to the inner wall of the arc-shaped inclined groove.

[0012] Preferably, the top outer wall of the fixing seat is rotatably connected to two rollers, and the rollers are located between the flange body and the fixing seat.

[0013] Preferably, a plurality of connection blocks are fixedly connected to the bottom outer wall of the base, and the plurality of connection blocks are evenly distributed in a circumferential array with equal intervals, and the plurality of connection blocks are rotatably connected to the circumferential outer wall of the rotating disk.

[0014] In summary, this application has the following beneficial technical effects: 1. Through the positioning rotation mechanism and linkage rotation mechanism, the driving wheel in the positioning rotation mechanism is connected to the self-locking motor, which can drive the flange body to rotate. At the same time, the linkage rotation mechanism can drive multiple clamps to move synchronously through the cooperation of the stepping motor, worm, worm wheel and rotating disk, so as to achieve precise positioning and stable fixation of the flange body. In actual drilling operations, when it is necessary to drill holes in different positions of the wind turbine flange, there is no need to frequently disassemble and reinstall the wind turbine flange. The position of the flange body can be flexibly adjusted by rotating the driving wheel, so that the drill bit can be accurately aligned with different drilling positions. This design greatly simplifies the operating process, avoids the waste of time and manpower caused by frequent disassembly and installation, significantly improves the drilling efficiency of the wind turbine flange, and reduces the complexity and tediousness of the operation; 2. This device integrates the functions of drilling and chamfering. After the drill bit completes the drilling operation, the chamfering mechanism can be started immediately. The chamfering mechanism drives the bidirectional screw through a micro motor, driving the nut ring and the connecting rod to extend the milling cutter from the slide slot to mill and chamfer the burrs on the inner wall edges on the upper and lower sides of the drilled hole. This integrated drilling and deburring design does not require additional processes and equipment to deal with burrs on the edge of the hole, reducing the production process and reducing production costs. At the same time, since the chamfering mechanism directly performs burr grinding after drilling and the movement of the milling cutter is precisely controlled by the device, it can ensure that the burrs of each hole can be evenly and thoroughly ground off. Compared with a separate grinding process, the grinding accuracy and quality are greatly improved, thereby improving the overall quality and subsequent performance of the wind turbine tower flange.

[0015] 3. Through the close cooperation of the linkage rotation mechanism and the positioning rotation mechanism, the linkage rotation mechanism is started, the stepper motor drives the worm to rotate, the worm engages the worm wheel to rotate the rotating disk, and the arc-shaped inclined groove of the rotating disk pushes the moving rod, driving the clamping block to move on the fixed seat, so that multiple clamping blocks are synchronously close to the flange body, and the driving wheel first contacts the outer wall of the flange body. Under the continuous action of the linkage rotation mechanism, the flange body pushes the driving wheel back, and the driving wheel pushes the inclined block through the first slide bar, and the inclined block cooperates with the lever to make the second slide bar drive the lower pressure wheel to press down, so as to realize the linkage limitation of the driving wheel and the lower pressure wheel on the outer periphery and the top of the flange body, stabilize the flange body, effectively prevent displacement and shaking, and greatly enhance the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an embodiment of the application; Figure 2 It is a structural diagram of the fixing seat in the embodiment of the application; Figure 3 is a bottom perspective view of an embodiment of the application; Figure 4 is an exploded schematic diagram of an embodiment of the application; Figure 5 This is a bottom structural diagram of the machine body in the embodiment of the application; Figure 6 is an exploded schematic diagram of a grinding head in an embodiment of the application; Figure 7 for Figure 6 A magnified schematic diagram of the structure in the middle.

[0017] Explanation of the accompanying symbols: 1. Base; 2. Gantry; 3. Machine body; 4. Grinding head; 5. Drill bit; 6. Slide; 7. Milling cutter; 8. Bidirectional screw; 9. Nut ring; 10. Connecting rod; 11. Micro motor; 12. Fixed shaft; 13. Rotating disk; 14. Arc-shaped inclined groove; 15. Shaft seat; 16. Worm; 17. Worm gear; 18. Mounting frame; 19. Stepper motor; 20. Avoid groove; 21. Fixed seat; 22. Limit groove; 23. Moving rod; 24. Connecting block; 25. Flange body; 26. Clamping block; 27. Slide rod 1; 28. Spring 1; 29. ​​Shaft frame; 30. Driving wheel; 31. Self-locking motor; 32. Inclined block; 33. Lever; 34. Pulley; 35. Slide rod 2; 36. Spring 2; 37. Movable groove; 38. Lower pressure wheel; 39. Roller. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-6 This application is described in further detail.

[0019] The embodiment of the present application discloses a drilling device for producing a wind turbine tower flange. Figure 1-6The gantry 2 is mounted on the outer wall of the base 1, which provides a stable installation position for the body 3. The grinding head 4 is mounted on the main shaft of the body 3, and the bottom end of the grinding head 4 is firmly connected to the drill bit 5. At the same time, the outer wall of the grinding head 4 is provided with a plurality of slide grooves 6, and an installation cavity connected with the slide groove 6 is arranged inside the grinding head 4 for installing the milling cutter 7 and the chamfering mechanism. It is worth noting that the gantry 2 cooperates with the body 3, and through the driving components inside the grinding head 4, it can drive the grinding head 4 and the drill bit 5 to adjust the front, back, left, right, up and down positions. This is the existing technology and will not be described in detail.

[0020] On the top outer wall of the base 1, there are fixedly connected a plurality of fixed seats 21 evenly distributed in an equidistant circular array. The fixed seats 21 are used to carry the flange body 25 to be processed. The outer wall of each fixed seat 21 is installed with a positioning and rotating mechanism, which is mainly composed of a driving wheel 30, a slide bar 27, an inclined block 32, a lever 33, a lower pressure wheel 38, a clamping block 26, an axle frame 29, a spring 1 28, a slide bar 2 35, a spring 2 36 and a pulley 34.

[0021] The clamping block 26 is connected to the fixed seat 21 and the base 1 through the moving rod 23. Specifically, a limiting groove 22 is provided on the outer wall of the fixed seat 21, and an avoidance groove 20 corresponding to the limiting groove 22 is provided on the outer wall of the base 1. The moving rod 23 on the outer wall of the bottom of the clamping block 26 can slide flexibly on the inner wall of the limiting groove 22 and the avoidance groove 20, and its bottom end can slide on the inner wall of the arc-shaped inclined groove 14 of the rotating disk 13, which provides a track and power source for the movement of the clamping block 26.

[0022] The slide bar 27 is slidably connected to the outer wall of the clamping block 26, and one end thereof is rotatably connected to the driving wheel 30 through the shaft bracket 29. The driving wheel 30 is used to fit the circumferential outer wall of the flange body 25. The outer wall of the slide bar 27 is sleeved with a spring 28. The spring 28 is located between the shaft bracket 29 and the clamping block 26. It can provide elastic pressure for the driving wheel 30 to ensure that the driving wheel 30 can better fit the flange body 25 during operation. A self-locking motor 31 is fixedly installed on the bottom outer wall of the shaft bracket 29. The output shaft end of the self-locking motor 31 passes through the shaft bracket 29 and is fixedly connected to the axis of the driving wheel 30. When the self-locking motor 31 is started, it can drive the driving wheel 30 to rotate, thereby driving the flange body 25 to rotate.

[0023] The second slide bar 35 is slidably connected to the top outer wall of the clamping block 26, and its bottom end is rotatably connected to the lower pressure wheel 38. The lower pressure wheel 38 is used to fit the top outer wall of the flange body 25. The outer wall of the second slide bar 35 is sleeved with a second spring 36. One end of the second spring 36 is fixedly connected to the top outer wall of the clamping block 26, and the other end is fixedly connected to the outer wall of the second slide bar 35. The second spring 36 can apply downward pressure to the lower pressure wheel 38, further enhancing the fixing effect on the flange body 25.

[0024] The lever 33 is rotatably connected to the inner wall of the clamping block 26 by an axle pin, and one end of the lever is rotatably connected to the pulley 34, which abuts the inclined surface of the inclined block 32. A movable groove 37 is provided on the outer wall of the other end of the lever 33, and the lever 33 is movably connected to the top end of the sliding rod 2 35 through the movable groove 37. When the sliding rod 1 27 moves, the inclined block 32 pushes the pulley 34, causing the lever 33 to rotate around the axle pin, thereby driving the sliding rod 2 35 to move up and down, realizing the downward pressing or lifting action of the lower pressure wheel 38.

[0025] In addition, the top outer wall of the fixing seat 21 is rotatably connected to two rollers 39, which are located between the flange body 25 and the fixing seat 21. Their function is to reduce the friction between the flange body 25 and the fixing seat 21 when placed and rotated, making the operation smoother.

[0026] The bottom outer wall of the base 1 is rotatably connected to the rotating disk 13 through a fixed shaft 12. The outer wall of the rotating disk 13 is provided with a plurality of arc-shaped inclined grooves 14. The arc-shaped inclined grooves 14 are evenly distributed along the circumferential direction of the rotating disk 13. The curvature and inclination angle thereof are precisely designed to ensure that when the rotating disk 13 rotates, the moving trajectory and distance of the moving rod 23 can be accurately controlled. The depth of the arc-shaped inclined grooves 14 is slightly larger than the diameter of the bottom end of the moving rod 23, and the width is slightly wider than the diameter of the bottom end of the moving rod 23, providing space for the moving rod 23 to slide smoothly.

[0027] The bottom middle outer wall of the rotating disk 13 is fixedly connected to the worm gear 17, and the bottom outer wall of the base 1 is rotatably connected to the worm 16 through two shaft seats 15. The worm 16 and the worm wheel 17 are engaged with each other. The bottom outer wall of the base 1 is also fixedly installed with a stepper motor 19 through a mounting bracket 18. The end of the output shaft of the stepper motor 19 is fixedly connected to one end of the worm 16. When the stepper motor 19 is started, it will drive the worm 16 to rotate, and the rotating disk 13 is rotated through the meshing action of the worm 16 and the worm wheel 17.

[0028] At the same time, the bottom outer wall of the base 1 is fixedly connected with a plurality of connecting blocks 24 evenly distributed in an equidistant circular array. The connecting blocks 24 are rotatably connected to the circumferential outer wall of the rotating disk 13. The connecting blocks 24 support and stabilize the rotation of the rotating disk 13, ensuring that the rotating disk 13 can run smoothly during operation.

[0029] The interior of the grinding head 4 is provided with an installation cavity connected to a plurality of slide grooves 6, and the chamfering mechanism is installed in this installation cavity. The chamfering mechanism is mainly composed of a bidirectional screw rod 8, a nut ring 9, a connecting rod 10 and a micro motor 11. The bidirectional screw rod 8 is rotatably connected to the interior of the installation cavity, and its outer wall is symmetrically threaded with two nut rings 9. The outer wall of the nut ring 9 is rotatably connected with a plurality of connecting rods 10. The end of each upper and lower connecting rod 10 away from the nut ring 9 is hinged to the outer wall of the milling cutter 7. The interior of the grinding head 4 is also fixedly installed with a micro motor 11. The end of the output shaft of the micro motor 11 is fixedly connected to one end of the bidirectional screw rod 8. When the micro motor 11 is started, it will drive the bidirectional screw rod 8 to rotate, so that the two nut rings 9 move toward or away from each other on the bidirectional screw rod 8. Through the transmission action of the connecting rod 10, the milling cutter 7 is driven to extend and retract in the slide groove 6, thereby realizing the chamfering and grinding of the edge of the inner wall of the drilled hole.

[0030] It is worth noting that the micro motor 11 adopts wireless power supply technology, which can avoid the wear and entanglement problems caused by physical connection. Wireless power supply is mainly based on the principle of electromagnetic induction. The transmitting coil generates an alternating magnetic field, and the receiving coil induces current in the magnetic field, thereby powering the micro motor 11. Specifically: according to the power and working distance of the micro motor 11, suitable transmitting coils and receiving coils are designed. The transmitting coil is usually installed on the outside of the grinding head 4, and the receiving coil is installed inside the grinding head 4 near the micro motor 11. A wireless power supply transmitting module is installed on the outside and connected to the power supply. A wireless power supply receiving module is installed inside the grinding head 4 and connected to the micro motor 11. The position and parameters of the transmitting and receiving coils are adjusted to ensure the efficiency and stability of wireless power supply.

[0031] The working principle of a drilling device for producing a wind turbine tower flange according to an embodiment of the present application is as follows: an operator places a flange body 25 to be processed on a plurality of fixing seats 21 stably. Before placement, the positioning rotation mechanism, under the action of the linkage rotation mechanism, places the clamping block 26 in an initial position. The initial position is away from the flange body 25, so that the driving wheel 30 and the lower pressure wheel 38 do not contact the outer wall of the flange body 25, providing sufficient space for the placement of the flange body 25 and facilitating the operation of the operator. After the flange body 25 is properly placed, the linkage rotation mechanism is started, the stepping motor 19 starts working, and drives the worm 16 to rotate. The worm 16 drives the rotating disk 13 to rotate by meshing with the worm wheel 17. When the rotating disk 13 rotates, the arc-shaped inclined groove 14 on its outer wall pushes the moving rod 23. Since the moving rod 23 is fixedly connected to the clamping block 26 and the moving rod 23 is restricted by the limiting groove 22 and the avoidance groove 20, the clamping block 26 will move along a predetermined trajectory on the fixing seat 21, thereby driving multiple clamping blocks 26 to synchronously approach the flange body 25; As the clamping block 26 approaches, the driving wheel 30 first contacts the circumferential outer wall of the flange body 25. Under the continuous advancement of the linkage rotation mechanism, the circumferential outer wall of the flange body 25 will reversely squeeze the multiple driving wheels 30, so that the multiple driving wheels 30 approach the inner wall of the clamping block 26. The movement of the driving wheel 30 pushes the inclined block 32 to move through the slide bar 1 27. The inclined surface of the inclined block 32 pushes the pulley 34 abutting against it, causing the lever 33 to rotate around the axle pin. When the lever 33 rotates, the movable groove 37 cooperates with the slide bar 2 35 to push the slide bar 2 35 downward, thereby pressing the lower pressure wheel 38 downward. Finally, the multiple driving wheels 30 and the multiple lower pressure wheels 38 can synchronously limit the outer periphery and the upper direction of the flange body 25, realizing the linkage effect of synchronous limiting and fixing in two directions, ensuring that the flange body 25 remains stable during the drilling and grinding process. After the flange body 25 is positioned and fixed, the machine body 3 is started. The main shaft of the machine body 3 drives the grinding head 4 and the drill bit 5 to rotate and descend. The drill bit 5 first contacts the flange body 25 and starts the drilling operation. As the drill bit 5 continues to drill, after the drilling operation is completed, burrs will inevitably appear on the inner wall edges of the upper and lower sides of the drilled hole. At this time, the chamfering mechanism is started, the micro motor 11 runs, driving the bidirectional screw 8 to rotate, causing the two nut rings 9 to move toward each other on the bidirectional screw 8, and through the transmission of the connecting rod 10, the multiple milling cutters 7 are pushed out from the slide 6. As the main shaft of the machine body 3 continues to descend, the multiple milling cutters 7 contact the inner wall edge above the drilled hole, milling and chamfering it, effectively grinding off the burrs above; After the burrs on the upper side are polished, the chamfering mechanism is activated again, the micro motor 11 rotates in the reverse direction, driving the bidirectional screw 8 to reverse, causing the nut ring 9 to move in the reverse direction, driving the multiple milling cutters 7 to retract into the chute 6, and then the main shaft of the body 3 drives the drill bit 5 to continue to descend, so that the multiple chute 6 on the grinding head 4 passes through the completed drill hole until the multiple milling cutters 7 are located below the drill hole; At this time, the chamfering mechanism restarts, and the micro motor 11 runs forward again, driving the multiple milling cutters 7 to extend out of the slide 6. Then, the main shaft of the body 3 drives the grinding head 4 and the drill bit 5 to rotate and rise slightly, so that the multiple milling cutters 7 contact the inner wall edge below the drill hole, and the burrs below are milled and chamfered; When the burrs below the drill hole are also ground off, the chamfering mechanism drives the multiple milling cutters 7 to retract into the slide groove 6 again. Finally, the main shaft of the body 3 drives the grinding head 4 and the drill bit 5 to rise and reset. At this point, the entire drilling and deburring operation is completed in one go, achieving the efficient effect of integrated drilling and deburring operations, and effectively improving the processing quality and production efficiency of the wind turbine tower flange.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A drilling device for producing a wind turbine tower flange, comprising a base (1), a gantry (2) mounted on the outer wall of the base (1), and a body (3) mounted on the outer wall of the gantry (2), characterized in that: The main shaft of the machine body (3) is equipped with a grinding head (4), the bottom end of the grinding head (4) is fixedly connected to a drill bit (5), the outer wall of the grinding head (4) is provided with a plurality of slide grooves (6), the inner walls of the plurality of slide grooves (6) are slidably connected to milling cutters (7), the interior of the grinding head (4) is provided with a mounting cavity connected to the plurality of slide grooves (6), and a chamfering mechanism for driving the plurality of milling cutters (7) to freely extend and retract is installed in the mounting cavity; The top outer wall of the base (1) is fixedly connected to a plurality of fixing seats (21), and the plurality of fixing seats (21) are evenly distributed in a circular array with equal spacing, a flange body (25) is placed above the plurality of fixing seats (21), and a positioning and rotating mechanism is installed on the outer wall of the fixing seat (21), which is used to synchronously limit the upper and peripheral positions of the flange body (25) and drive the flange body (25) to rotate; A linkage rotation mechanism is installed on the bottom outer wall of the base (1), and the linkage rotation mechanism is used to drive multiple positioning mechanisms to operate synchronously.

2. A drilling device for producing wind turbine tower flanges according to claim 1, characterized in that: The positioning rotation mechanism includes a driving wheel (30), a sliding rod (27), an inclined block (32), a lever (33) and a lower pressure wheel (38), wherein the driving wheel (30) is rotatably connected to one end of the sliding rod (27) through the shaft frame (29), and the driving wheel (30) is in contact with the circumferential outer wall of the flange body (25), and the sliding rod (27) is slidably connected to the outer wall of the clamping block (26), and the inclined block (32) is fixedly connected to the end of the sliding rod (27) away from the driving wheel (30), and the outer wall of the sliding rod (27) is sleeved with a spring (28), and the spring (28) is located between the shaft frame (29) and the clamping block (26).

3. The drilling device for producing a wind turbine tower flange according to claim 2, characterized in that: The top outer wall of the clamping block (26) is slidably connected to the second slide bar (35), the lower pressure wheel (38) is rotatably connected to the bottom end of the second slide bar (35), the lower pressure wheel (38) is fitted with the top outer wall of the flange body (25), the outer wall of the second slide bar (35) is sleeved with the second spring (36), one end of the second spring (36) is fixedly connected to the top outer wall of the clamping block (26), and the other end thereof is fixedly connected to the outer wall of the second slide bar (35).

4. A drilling device for producing wind turbine tower flanges according to claim 3, characterized in that: The lever (33) is rotatably connected to the inner wall of the clamping block (26) through an axle pin, and one end of the lever (33) is rotatably connected to a pulley (34), and the pulley (34) abuts against the inclined surface of the inclined block (32). A movable groove (37) is provided on the outer wall of the other end of the lever (33), and the lever (33) is movably connected to the top end of the second slide rod (35) through the movable groove (37).

5. The drilling device for producing a wind turbine tower flange according to claim 4, characterized in that: A self-locking motor (31) is fixedly mounted on the bottom outer wall of the shaft frame (29), and the output shaft end of the self-locking motor (31) passes through the shaft frame (29) and is fixedly connected to the axis of the driving wheel (30).

6. The drilling device for producing a wind turbine tower flange according to claim 1, characterized in that: The chamfering mechanism includes a bidirectional screw (8) rotatably connected to the inside of the installation cavity, the outer wall of the bidirectional screw (8) is symmetrically threaded with two nut rings (9), the outer wall of the nut ring (9) is rotatably connected to a plurality of connecting rods (10), and one end of each upper and lower two connecting rods (10) away from the nut ring (9) is hinged to the outer wall of the milling cutter (7), and a micro motor (11) is also fixedly installed inside the grinding head (4), and the end of the output shaft of the micro motor (11) is fixedly connected to one end of the bidirectional screw (8).

7. The drilling device for producing a wind turbine tower flange according to claim 5, characterized in that: The linkage rotation mechanism comprises a rotating disk (13) rotatably connected to the bottom outer wall of the base (1) via a fixed shaft (12), the outer wall of the rotating disk (13) is provided with a plurality of arc-shaped inclined grooves (14), a worm gear (17) is fixedly connected to the bottom middle outer wall of the rotating disk (13), a worm (16) is rotatably connected to the bottom outer wall of the base (1) via two shaft seats (15), the worm gear (16) is meshed with the worm gear (17), and a stepping motor (19) is fixedly mounted on the bottom outer wall of the base (1) via a mounting frame (18), the output shaft end of the stepping motor (19) is fixedly connected to one end of the worm gear (16).

8. The drilling device for producing a wind turbine tower flange according to claim 7, characterized in that: The outer walls of the plurality of fixed seats (21) are provided with limiting grooves (22), the outer wall of the base (1) is provided with a plurality of avoidance grooves (20), the avoidance grooves (20) corresponding to the limiting grooves (22), the outer wall of the bottom of the clamping block (26) is fixedly connected with a moving rod (23), the moving rod (23) is slidably connected to the inner walls of the limiting grooves (22) and the avoidance grooves (20), and the bottom end thereof is slidably connected to the inner wall of the arc-shaped inclined groove (14).

9. The drilling device for producing a wind turbine tower flange according to claim 8, characterized in that: The top outer wall of the fixing seat (21) is rotatably connected to two rollers (39), and the rollers (39) are located between the flange body (25) and the fixing seat (21).

10. The drilling device for producing a wind turbine tower flange according to claim 9, characterized in that: A plurality of connection blocks (24) are fixedly connected to the bottom outer wall of the base (1), and the plurality of connection blocks (24) are evenly distributed in an equidistant circular array, and the plurality of connection blocks (24) are rotatably connected to the circumferential outer wall of the rotating disk (13).

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