Automatic cutting system and method for fan blade

Abstract

The invention relates to the field of wind power generation, in particular to an automatic fan blade cutting system and method.The automatic fan blade cutting system comprises an overturning and shifting device, a control device, a mechanical arm, a cutting device and a carrying device, and the mechanical arm is installed beside the overturning and shifting device and connected with the cutting device; the control device is connected with the turnover displacement device, the mechanical arm, the cutting device and the carrying device. The overturning and shifting device comprises two sets of overturning mechanisms which are oppositely arranged, each set of overturning mechanism comprises a clamping assembly and a rotating assembly, the rotating assembly comprises a rotating motor, a rotating gear set and a rotating fixing plate, the rotating motor is connected with the rotating gear set, the rotating gear set is connected with the rotating fixing plate, and the rotating gear set is connected with the rotating fixing plate. The clamping assembly is fixed to the rotary fixing plate, the control device controls the torque of the rotary motor to achieve accurate control over multi-angle overturning, and the cutting device and the mechanical arm are matched to compensate a cutting path through further overturning in the cutting process.

Description

Technical Field

[0001] The invention relates to the field of wind power generation, and in particular to an automatic cutting system and method for wind turbine blades. Background Art

[0002] Wind power generation refers to the conversion of wind kinetic energy into electrical energy, and wind power generation requires the use of corresponding wind power generation equipment. Wind turbine blades are the core components of wind turbine equipment that convert natural wind energy into wind turbine electrical energy. They are also the main basis for measuring the design and technical level of wind turbines. In the actual production and processing of wind turbine blades, they need to be cut and polished.

[0003] However, the wind blade cutting equipment used in the prior art still has the following shortcomings: the size of the wind blades is often huge and the shape is irregular, which makes it inconvenient to clamp and fix the wind blades according to the actual size of the wind turbine blades. When the wind blades are relatively wide, the robot arm cannot reach forward enough and it is difficult to completely cut the wind blades without turning them over. Summary of the invention

[0004] The technical problem that the present application aims to solve is to provide an automatic cutting system and method for fan blades that can adapt to various shapes and sizes of fan blades and realize multi-angle flipping. The control device realizes precise control of multi-angle flipping by controlling the torque of the rotating motor and the rotating gear set. In conjunction with the cutting device and the manipulator, the cutting path can be compensated by further flipping during the cutting process.

[0005] The specific technical solution of the present application is: an automatic cutting system for wind turbine blades, including a flipping and positioning device, a control device, a manipulator, a cutting device and a conveying device, wherein the manipulator is installed next to the flipping and positioning device, the manipulator is connected to the cutting device, and the control device is respectively connected to the flipping and positioning device, the manipulator, the cutting device and the conveying device; the flipping and positioning device includes a flipping mechanism, the flipping mechanisms are relatively arranged in two groups, each group of flipping mechanisms includes a clamping assembly and a rotating assembly, the rotating assembly includes a rotating motor, a rotating gear group and a rotating fixed plate, the rotating motor is connected to the rotating gear group, the rotating gear group is connected to the rotating fixed plate, and the clamping assembly is fixed on the rotating fixed plate.

[0006] Furthermore, the clamping assembly includes multiple clamping rollers and pressure plates, the clamping rollers are fixed side by side with the rotating fixed plate, and the pressure plate is fixed above the clamping rollers; the clamping assembly also includes a hydraulic electric cylinder and an electric cylinder motor, the electric cylinder motor is connected to the hydraulic electric cylinder, and the end of the hydraulic electric cylinder fixes the pressure plate above the clamping roller.

[0007] Further preferably, the clamping assembly also includes a telescopic cylinder and a guide rail, which are fixed on the rotating fixed plate, and the pressure plate is slidably connected to the guide rail. The clamping assembly also includes an L-shaped connecting plate, a plurality of guide pillars and a guide sleeve located above the pressure plate, the L-shaped connecting plate is slidably connected to the guide rail, one side of the L-shaped connecting plate is connected to the telescopic cylinder, and the hydraulic cylinder passes through the other side of the L-shaped connecting plate and is fixed to the L-shaped connecting plate; the other side of the L-shaped connecting plate is provided with a plurality of through holes for the guide pillars to pass through, the guide sleeves are fixed at the through holes, and the guide pillars pass through the guide sleeves to be connected to the pressure plate.

[0008] Furthermore, the flipping and shifting device also includes a shifting mechanism, which includes a moving track, with a fixed platform and a sliding platform connected at both ends of the moving track. The sliding platform is driven by a track motor, one group of flipping mechanisms is installed on the fixed platform as a fixed machine, and the other group of flipping mechanisms is installed on the sliding platform as a mobile machine. Furthermore, the two robots are opposite to each other, the robot connected to the cutting device is the first robot, and the robot connected to the transporting device is the second robot; it also includes a ground rail, which is fixed on the ground parallel to the flipping and positioning device, and the first robot is slidably connected to the ground rail.

[0009] Further preferably, the cutting device includes a mounting frame, a cutting motor, a saw blade and a dust cover, the mounting frame is connected to the first manipulator through a flange, the dust cover is fixedly connected to the mounting frame, the cutting motor is fixed inside the mounting frame, the saw blade is rotatably connected inside the dust cover, and the cutting motor is connected to the saw blade.

[0010] Further preferably, it also includes a dust collector and a dust removal pipeline, the dust collector and the dust removal pipeline are connected through a hose, and the dust removal pipeline is fixed on the first manipulator; a dust suction pipe is provided on the dust cover, and a merging pipe is fixed on the mounting frame, the dust suction pipe and the merging pipe are connected through a hose, and the merging pipe is connected to the dust removal pipeline through a hose.

[0011] Further preferably, the handling device includes a suction cup group and a suction cup connecting frame, the suction cup group is fixed on the suction cup connecting frame, the suction cup connecting frame is fixed to the second manipulator flange, and a spring is also fixed between the suction cup group and the suction cup connecting frame.

[0012] Preferably, it also includes conveyor belts for transporting perpendicularly to each other, the first conveyor belt crosses the flipping and shifting device and is fixed directly below the fan blades, the width of the first conveyor belt is greater than the width of the fan blades, the second conveyor belt is fixed on one side of the flipping and shifting device, the top surface of the first conveyor belt is higher than that of the second conveyor belt, and the first conveyor belt transports in the direction of the second conveyor belt.

[0013] The present application also proposes a cutting method based on the above-mentioned automatic cutting system for wind turbine blades, comprising the following steps: S1. The control device controls the manipulator to connect the transport device and fix the fan blade, and place the fan blade flat on the clamping roller of the flipping and positioning device, and the clamping assembly fixes the fan blade; S2, the control device controls the manipulator to release the transport device, the manipulator connects to the cutting device, the cutting path is pre-set on the control device, and the flipping and positioning device flips the fan blade so that the cutting position of the fan blade is close to the manipulator; S3, the control device starts the cutting device and controls the manipulator to start cutting the fan blades along the cutting path; if the cutting device on the manipulator is not sufficient to complete the entire cutting path, the control device controls the flipping and positioning device to further flip the fan blades, thereby compensating for the cutting path; S4. After the cutting is completed, the manipulator and the flipping and positioning device return to the origin, the clamping assembly is released, and the manipulator switches to the connecting and handling device to remove the cut materials and fan blades from the clamping roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The control device of the present invention realizes precise control of multi-angle flipping by controlling the torque of the rotating motor and the rotating gear group. The manipulator is connected to the cutting device to cut the fan blades. For fan blades with huge sizes, the stroke of the manipulator is not enough to complete the complete cutting path, so the operation can only be stopped. The control device of the present invention can compensate for the cutting path by further flipping during the cutting process by controlling the flipping and positioning device, thereby improving the automation level of the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the automatic cutting system for wind turbine blades according to an embodiment of the present application; Figure 2 It is a schematic diagram of the clamping state of the flipping and positioning device in the embodiment of the present application; Figure 3 It is a schematic diagram of the internal structure of the rotating assembly in the embodiment of the present application; Figure 4 It is a schematic diagram of the structure of the clamping assembly in the embodiment of the present application; Figure 5 It is a structural schematic diagram of the displacement mechanism in the embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the cutting device in the embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the transport device in the embodiment of the present application; Figure 8 It is a schematic diagram of the structure of the dust collector, dust removal pipeline and ground rail in the embodiment of the present application; Fig. 9This is a schematic diagram of the structure of the first conveyor belt and the second conveyor belt in the embodiment of the present application; In the figure: 1. flip-shift device; 11. clamping assembly; 1101. clamping roller; 1102. pressing plate; 1103. telescopic cylinder; 1104. guide rail; 1105. L-shaped connecting plate; 1106. guide column; 1107. guide sleeve; 1108. electric cylinder motor; 1109. hydraulic cylinder; 12. rotating assembly; 121. rotating motor; 122. rotating gear set; 123. rotating fixed plate; 13. shifting mechanism; 1301. moving track; 13 02. Fixed platform; 1303. Sliding platform; 1304. Track motor; 21. First manipulator; 22. Second manipulator; 3. Cutting device; 31. Mounting frame; 32. Cutting motor; 33. Saw blade; 34. Dust cover; 35. Dust suction pipe; 36. Junction pipe; 4. Transport device; 41. Suction cup group; 42. Suction cup connecting frame; 43. Spring; 5. Dust collector; 6. Ground rail; 7. Dust removal pipeline; 8. First conveyor belt; 9. Second conveyor belt. DETAILED DESCRIPTION To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0016] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] Example See also Figures 1 to 9The present embodiment provides an automatic cutting system for wind turbine blades, comprising a flipping and positioning device 1, a control device, a manipulator, a cutting device 3 and a transporting device 4, wherein the manipulator is installed beside the flipping and positioning device 1, and is connected to the cutting device 3, and the control device is respectively connected to the flipping and positioning device 1, the manipulator, the cutting device 3 and the transporting device 4; the flipping and positioning device 1 comprises a flipping mechanism, and the flipping mechanisms are relatively arranged in two groups, and each group of flipping mechanisms comprises a clamping assembly 11 and a rotating assembly 12, and the rotating assembly 12 comprises a rotating motor 121, a rotating gear set 122 and a rotating fixed plate 123, and the rotating motor 121 is connected to the rotating gear set 122, and the rotating gear set 122 is connected to the rotating fixed plate 123, and the clamping assembly 11 is fixed on the rotating fixed plate 123; the clamping assembly 11 comprises a plurality of clamping rollers 1101 and a pressing plate 1102, and the clamping rollers 1101 are fixed side by side with the rotating fixed plate 123, and the pressing plate 1102 is fixed above the clamping rollers 1101. The flipping mechanism is set as two groups, which can prevent the fan blades with huge size from twisting during the flipping process. At the same time, for the fan blades with complex shapes and small sizes, the flipping mechanism on either side can clamp and flip, thereby improving the cutting efficiency; the rotating motor 121 and the rotating gear set 122 are convenient for precise control of the rotation angle, so that the fan blades can be flipped at multiple angles for cutting; the inside of the fan blade is hollow, the clamping roller 1101 is placed under the fan blade, and the pressure plate 1102 extends into the fan blade and presses down to clamp the fan blade, and the clamping roller 1101 can better adapt to the fan blades with circular arc shape, making the clamping more secure. The manipulator is connected to the cutting device 3 to cut the fan blades. For the fan blades with huge size, the manipulator's stroke is insufficient to complete the complete cutting path, so the operation can only be stopped. The control device of the present invention can compensate for the cutting path by further flipping during the cutting process by controlling the flipping and positioning device 1, thereby improving the automation level of the cutting operation.

[0018] Preferably, the clamping assembly 11 includes a hydraulic cylinder 1109 and an electric cylinder motor 1108, the clamping rollers 1101 are fixed side by side on the rotating fixed plate 123, the electric cylinder motor 1108 is connected to the hydraulic cylinder 1109, and the end of the hydraulic cylinder 1109 fixes the pressing plate 1102 above the clamping roller 1101. The electric cylinder motor 1108 drives the hydraulic cylinder 1109 downward or upward, drives the pressing plate 1102 downward or upward, and cooperates with the clamping roller 1101 to clamp and release the fan blades.

[0019] Preferably, the clamping assembly 11 also includes a telescopic cylinder 1103 and a guide rail 1104, the telescopic cylinder 1103 and the guide rail 1104 are fixed on the rotating fixed plate 123, the pressure plate 1102 is slidably connected to the guide rail 1104, and the clamping assembly 11 also includes an L-shaped connecting plate 1105, a plurality of guide pillars 1106 and a guide sleeve 1107 located above the pressure plate 1102, the L-shaped connecting plate 1105 is slidably connected to the guide rail 1104, one side of the L-shaped connecting plate 1105 is connected to the telescopic cylinder 1103, the hydraulic cylinder 1109 passes through the other side of the L-shaped connecting plate 1105 and is fixed to the L-shaped connecting plate 1105; the other side of the L-shaped connecting plate 1105 is provided with a plurality of through holes for the guide pillars 1106 to pass through, the guide sleeves 1107 are fixed at the through holes, and the guide pillars 1106 pass through the guide sleeves 1107 to be connected to the pressure plate 1102. Before placing the fan blade, the telescopic cylinder 1103 is in a contracted state, and the pressing plate 1102 retracts; after placing the fan blade on the clamping roller 1101, the telescopic cylinder 1103 pushes the pressing plate 1102 out through the L-shaped connecting plate 1105 and extends it into the hollow fan blade, and the pressing plate 1102 presses down to clamp the fan blade. This avoids the interference of the pressing plate 1102 in placing the fan blade, improves the efficiency of the robot's handling, and improves the automation efficiency.

[0020] Further preferably, the clamping assembly 11 is further provided with a limit plate, which connects and fixes two adjacent guide posts 1106 on the same side at the same level. The limit plate can prevent the pressure plate 1102 from rushing out of the guide rod during the lifting process, and can also enhance the stability of the guide rod and reduce noise.

[0021] Further preferably, the clamping assembly 11 also includes a fixed frame and a shell, the shell wraps and supports the rotating assembly 12, the fixed frame is fixed on the rotating fixed plate 123, the fixed frame and the rotating fixed plate 123 together surround the side and bottom of the clamping assembly 11, the telescopic cylinder 1103, the clamping roller 1101 and the guide rail 1104 are fixed on the fixed frame, and the side of the fixed frame facing the fan blade is provided with an opening for the pressure plate 1102 to press down, and the clamping roller 1101 and the pressure plate 1102 extend from the opening. In this embodiment, the front and rear sides are semi-enclosed, the guide rail 1104 is fixed to the top of the front and rear sides of the fixed frame, and the telescopic cylinder 1103 is fixed to the fixed frame through a connecting plate. The fixed frame can provide a large load-bearing capacity to support the entire clamping assembly 11 and the fan blade, so that the stability of the flipping and positioning device 1 is stronger, the control of the cutting process is more accurate, and noise or failure caused by machine shaking during cutting is avoided. In this embodiment, a stopper is further provided on one side of the fixing frame facing the fan blades, and protective rubber pads are provided on the stopper and the clamping roller 1101 to enhance the protection of the fan blades. Further preferably, the clamping roller 1101 is also provided with a sensor for detecting whether the fan blade is placed on the clamping roller 1101, and a buffer spring is also provided between the clamping rollers 1101, and the buffer spring is fixed to the bottom surface of the fixing frame. The buffer spring can provide a buffer during the pressing process of the pressing plate 1102, so as to avoid damage to the fan blade caused by pressing too fast or too hard.

[0022] Furthermore, it also includes a displacement mechanism 13, which includes a moving track 1301, a fixed platform 1302 and a sliding platform 1303 connected to the moving track 1301, and the sliding platform 1303 is driven by a track motor 1304. A set of flipping mechanisms is installed on the fixed platform 1302 as a fixed machine, and another set of flipping mechanisms is installed on the sliding platform 1303 as a mobile machine, and the mobile machine slides back and forth toward the fixed machine. For large-scale wind turbine blades with large widths, the displacement mechanism 13 can adaptably adjust the distance between the two sets of flipping mechanisms to adapt to the processing of wind turbine blades with more widths.

[0023] In this embodiment, the manipulators are two opposed to each other, the manipulator connected to the cutting device 3 is the first manipulator 21, and the manipulator connected to the transport device 4 is the second manipulator 22; the manipulator also includes a ground rail 6, which is fixed on the ground in parallel with the flipping and positioning device 1, and the first manipulator 21 is slidably connected to the ground rail 6. When the lateral travel of the manipulator is insufficient, the control device can control the ground rail 6 to make the first manipulator 21 translate as a whole, thereby realizing compensation for the horizontal displacement of the first manipulator 21.

[0024] Further preferably, the cutting device 3 includes a mounting frame 31, a cutting motor 32, a saw blade 33 and a dust cover 34. The mounting frame 31 is connected to the first manipulator 21 through a flange, the dust cover 34 is fixedly connected to the mounting frame 31, the cutting motor 32 is fixed inside the mounting frame 31, the saw blade 33 is rotatably connected inside the dust cover 34, and the cutting motor 32 is connected to the saw blade 33. The saw blade 33 is driven by the cutting motor 32 to ensure high-speed operation of the saw blade 33, which is convenient for the control of the control device. The first manipulator 21 is responsible for movement, and the cutting device 3 is responsible for cutting, which makes the cutting process of cutting the fan blades easier to control.

[0025] Further preferably, it also includes a dust collector 5 and a dust collection pipeline 7, the dust collector 5 and the dust collection pipeline 7 are connected through a hose, and the dust collection pipeline 7 is fixed on the first manipulator 21; the dust cover 34 is provided with a dust suction pipe 35, and a junction pipe 36 is fixed on the mounting frame 31, the dust suction pipe 35 and the junction pipe 36 are connected through a hose, and the junction pipe 36 is connected to the dust collection pipeline 7 through a hose. The dust collection pipeline 7, the junction pipe 36 and the dust collection pipe 35 are connected through a hose, which avoids interference of the manipulator during movement, and dust removal is performed at the end where cutting dust is generated, which can significantly improve the dust removal efficiency and minimize dust flying.

[0026] Further preferably, the handling device 4 includes a suction cup group 41 and a suction cup connecting frame 42, the suction cup group 41 is fixed on the suction cup connecting frame 42, the suction cup connecting frame 42 is flange-fixed to the second manipulator 22, and a spring 43 is also fixed between the suction cup group 41 and the suction cup connecting frame 42. The contact surface of the suction cup is relatively soft, which avoids damage to the fan blades due to equipment reasons during the process of carrying the fan blades. A spring 43 is fixed under each suction cup, so that the suction cup group 41 can adapt to fan blades of various surface shapes, thereby improving the effect of adsorption and fixation. The suction cup group 41 is fixed to the second manipulator 22 through the suction cup connecting frame 42. The second manipulator 22 is responsible for movement, and the suction cup group 41 is responsible for fixation, which also makes process control easier.

[0027] As a preferred embodiment, it also includes conveyor belts for transporting vertically to each other. The first conveyor belt 8 crosses the flipping and shifting device 1 and is fixed directly below the fan blades. The width of the first conveyor belt 8 is greater than the width of the fan blades. The second conveyor belt 9 is fixed on one side of the flipping and shifting device 1. The top surface of the first conveyor belt 8 is higher than the second conveyor belt 9. The first conveyor belt 8 transports in the direction of the second conveyor belt 9.

[0028] This embodiment further provides a cutting method of the automatic cutting system for fan blades based on the automatic cutting system for fan blades, comprising the following steps: S1, the control device controls the moving machine of the flipping and positioning device 1 to move until the shortest distance of the fixed frame of the flipping mechanism is greater than the width of the fan blade, and the shortest distance relative to the clamping roller 1101 is less than the width of the fan blade, and the first manipulator 21 connects with the transport device 4 to place the fan blade on the clamping roller 1101 of the flipping and positioning device 1; after the sensor senses that the fan blade is placed on the clamping roller 1101, the control device starts the telescopic cylinder 1103 and the hydraulic cylinder 1109, and the pressing plate 1102 extends into the fan blade and presses down to compact the fan blade; S2, presetting a cutting path on the control device, flipping the fan blade by the flipping and positioning device 1, so that the cutting position of the fan blade is close to the second manipulator 22 connected to the cutting device 3, and the control device controls the first manipulator 21 connected to the transport device 4 to fix the preset cutting position of the fan blade; S3, the control device starts the cutting device 3, controls the second manipulator 22 to run along the cutting path to start cutting the fan blades; if the cutting device 3 on the second manipulator 22 is not sufficient to complete the entire cutting path, the control device controls the ground rail 6 to make the second manipulator 22 translate or controls the flipping and positioning device 1 to further flip the fan blades, thereby compensating for the cutting path; S4. After the cutting is completed, the first manipulator 21 and the flipping and positioning device 1 return to the origin, the clamping assembly 11 is released, and the second manipulator 22 removes the cut material and the fan blade from the clamping roller 1101.

[0029] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0030] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. An automatic cutting system for fan blades, characterized in that: The invention comprises a flipping and positioning device (1), a control device, a manipulator, a cutting device (3) and a transport device (4), wherein the manipulator is installed beside the flipping and positioning device (1), the manipulator is connected to the cutting device (3), and the control device is respectively connected to the flipping and positioning device (1), the manipulator, the cutting device (3) and the transport device (4); the flipping and positioning device (1) comprises a flipping mechanism, the flipping mechanism is relatively arranged in two groups, each group of flipping mechanisms comprises a clamping assembly (11) and a rotating assembly (12), the rotating assembly (12) comprises a rotating motor (121), a rotating gear group (122) and a rotating fixed plate (123), the rotating motor (121) is connected to the rotating gear group (122), the rotating gear group (122) is connected to the rotating fixed plate (123), and the clamping assembly (11) is fixed on the rotating fixed plate (123).

2. The automatic cutting system for wind turbine blades according to claim 1, characterized in that: The clamping assembly (11) comprises a plurality of clamping rollers (1101) and a pressure plate (1102), wherein the clamping rollers (1101) are fixed side by side with a rotating fixed plate (123), and the pressure plate (1102) is fixed above the clamping rollers (1101); the clamping assembly (111) further comprises a hydraulic electric cylinder (1109) and an electric cylinder motor (1108), wherein the electric cylinder motor (1108) is connected to the hydraulic electric cylinder (1109), and the end of the hydraulic electric cylinder (1109) fixes the pressure plate (1102) above the clamping rollers (1101).

3. The automatic cutting system for fan blades according to claim 2, characterized in that: The clamping assembly (11) further comprises a telescopic cylinder (1103) and a guide rail (1104), wherein the telescopic cylinder (1103) and the guide rail (1104) are fixed on the rotating fixed plate (123), and the pressing plate (1102) is slidably connected to the guide rail (1104). The clamping assembly (11) further comprises an L-shaped connecting plate (1105) located above the pressing plate (1102), a plurality of guide pillars (1106) and a guide sleeve (1107), wherein the L-shaped connecting plate (1105) and the guide rail are connected to each other. (1104) is slidably connected, one side of the L-shaped connecting plate (1105) is connected to the telescopic cylinder (1103), and the hydraulic cylinder (1109) passes through the other side of the L-shaped connecting plate (1105) and is fixed to the L-shaped connecting plate (1105); the other side of the L-shaped connecting plate (1105) is provided with a plurality of through holes for the guide pillars (1106) to pass through, and the guide sleeves (1107) are fixed at the through holes, and the guide pillars (1106) pass through the guide sleeves (1107) and are connected to the pressure plate (1102).

4. The automatic cutting system for wind turbine blades according to claim 1, characterized in that: The flipping and shifting device (1) further comprises a shifting mechanism (13), the shifting mechanism (13) comprising a moving track (1301), the two ends of the moving track (1301) being connected to a fixed platform (1302) and a sliding platform (1303), the sliding platform (1303) being driven by a track motor (1304), one set of flipping mechanisms being mounted on the fixed platform (1302) as a fixed machine, and another set of flipping mechanisms being mounted on the sliding platform (1303) as a moving machine.

5. The automatic cutting system for wind turbine blades according to claim 1, characterized in that: The manipulators are two opposed to each other, the manipulator connected to the cutting device (3) is a first manipulator (21), and the manipulator connected to the transport device (4) is a second manipulator (22); the manipulator also includes a ground rail (6), the ground rail (6) is fixed on the ground in parallel with the flipping and positioning device (1), and the first manipulator (21) is slidably connected to the ground rail (6).

6. The automatic cutting system for wind turbine blades according to claim 5, characterized in that: The cutting device (3) comprises a mounting frame (31), a cutting motor (32), a saw blade (33) and a dust cover (34); the mounting frame (31) is connected to the first manipulator (21) via a flange; the dust cover (34) is fixedly connected to the mounting frame (31); the cutting motor (32) is fixed inside the mounting frame (31); the saw blade (33) is rotatably connected inside the dust cover (34); and the cutting motor (32) is connected to the saw blade (33).

7. The automatic cutting system for wind turbine blades according to claim 6, characterized in that: It also comprises a dust collector (5) and a dust removal pipeline (7), the dust collector (5) and the dust removal pipeline (7) being connected via a hose, and the dust removal pipeline (7) being fixed on the first manipulator (21); a dust suction pipe (35) is provided on the dust cover (34), a junction pipe (36) is fixed on the mounting frame (31), the dust suction pipe (35) and the junction pipe (36) are connected via a hose, and the junction pipe (36) and the dust removal pipeline (7) are connected via a hose.

8. The automatic cutting system for wind turbine blades according to claim 5, characterized in that: The handling device (4) comprises a suction cup group (41) and a suction cup connecting frame (42), the suction cup group (41) is fixed on the suction cup connecting frame (42), the suction cup connecting frame (42) is flange-fixed to the second manipulator (22), and a spring (43) is also fixed between the suction cup group (41) and the suction cup connecting frame (42).

9. The automatic cutting system for wind turbine blades according to claim 1, characterized in that: It also includes conveyor belts for transporting vertically to each other, wherein a first conveyor belt (8) crosses the flipping and shifting device (1) and is fixed directly below the fan blades, the width of the first conveyor belt (8) is greater than the width of the fan blades, and a second conveyor belt (9) is fixed to one side of the flipping and shifting device (1), the top surface of the first conveyor belt (8) is higher than the second conveyor belt (9), and the first conveyor belt (8) is transported in the direction of the second conveyor belt (9).

10. A cutting method for a wind turbine blade according to any one of claims 1 to 8, characterized in that: The steps include: S1, the control device controls the manipulator to connect the transport device (4) to the fan blade and fix it, and place the fan blade flat on the flipping and positioning device (1), and the clamping component (11) fixes the fan blade; S2, the control device controls the manipulator to release the transport device (4), the manipulator connects to the cutting device (3), a cutting path is pre-set on the control device, and the flipping device (1) flips the fan blade so that the cutting position of the fan blade is close to the manipulator; S3, the control device starts the cutting device (3), controls the manipulator to start cutting the fan blade along the cutting path; if the cutting device (3) on the manipulator is not sufficient to complete the entire cutting path, the control device controls the flipping and positioning device (1) to further flip the fan blade, thereby compensating for the cutting path; S4. After the cutting is completed, the manipulator and the flipping and positioning device (1) return to the origin, the clamping assembly (11) is released, and the manipulator switches to connect the transport device (4) to remove the cut material and fan blades from the flipping and positioning device (1).

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