An intelligent welding positioning device for large wind turbine stator base

Abstract

The invention discloses an intelligent welding positioning device for a large-scale wind turbine stator base, which is applied to the technical field of welding positioning, including a flip assembly including a base plate, a drive box fixed on the top of the base plate, a rotation drive 1 arranged inside the drive box, a connecting disk fixed on the output end of the rotation drive 1, a bearing platform fixed in the middle of the connecting disk, and a rotation drive 2 arranged below the base plate; the detection assembly includes a hydraulic cylinder and a rotation drive 3, a support plate fixed on the output end of the electric telescopic rod 2, two groups of cylinders fixed on one side of the support plate, a push plate fixed on the output end of the cylinder, two groups of long grooves opened inside the support plate, the push plate arranged inside the long groove, and a distance sensor fixed on the side of the push plate close to the long groove. The invention has the characteristics of conveniently detecting the position of the wind turbine stator base during welding to achieve precise positioning.

Description

Technical Field

[0001] The invention relates to the technical field of welding positioning, and in particular to an intelligent welding positioning device for a large wind power stator frame. Background Art

[0002] During the wind power generation process, the fan blades driven by wind drive the rotor to rotate and cut the magnetic flux lines to interact with the stator to generate electricity. The rotor is subjected to a large bending moment in the horizontal direction caused by the blades due to gravity, which requires the wind turbine stator base assembly to be more stable and firm. The wind turbine stator base assembly needs to be welded together using welding equipment to improve its structural strength.

[0003] The existing welding devices are generally automated welding, which realizes efficient welding of wind turbine stator frames by integrating advanced robot technology, sensor technology, machine vision technology and precise control system. However, it is difficult for the welding device to accurately align the assembled wind turbine stator frame during welding, which easily affects the welding strength.

[0004] Therefore, it is necessary to design a large-scale wind turbine stator base intelligent welding positioning device that can conveniently detect the position of the wind turbine stator base during welding to achieve precise positioning. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent welding positioning device for a large wind turbine stator frame to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a large-scale wind turbine stator base intelligent welding positioning device, comprising a welding assembly, a flip assembly, a pressing assembly, a clamping assembly, and a detection assembly, wherein the welding assembly is arranged on one side of the flip assembly, the pressing assembly and the clamping assembly are arranged on the flip assembly, the detection assembly is arranged below the welding assembly, the clamping assembly is used to clamp the wind turbine stator base, the pressing assembly is used to press and clamp the wind turbine stator base, and the detection assembly is used to adjust the position of the wind turbine stator base;

[0007] The flip assembly includes a bottom plate, a drive box is fixed on the top of the bottom plate, a rotary drive 1 is arranged inside the drive box, a connection disk is fixed on the output end of the rotary drive 1, a bearing platform is fixed in the middle of the connection disk, and a rotary drive 2 is arranged below the bottom plate;

[0008] The detection component includes a hydraulic cylinder and a rotary drive three, the hydraulic cylinder is fixed on a base plate, a sleeve is fixed on the output end of the hydraulic cylinder, five groups of fixing seats are fixed around the sleeve, the interior of the fixing seat is connected to an electric telescopic rod two through a rotary drive three, a support plate is fixed on the output end of the electric telescopic rod two, two groups of cylinders are fixed on one side of the support plate, a push plate is fixed on the output end of the cylinder, two groups of long grooves are opened inside the support plate, the push plate is arranged inside the long groove, and a distance sensor is fixed on the side of the push plate close to the long groove.

[0009] According to the above technical solution, the welding assembly includes a bracket and a linear drive, the upper part of the bracket is connected to a sliding rod through the linear drive, the lower part of the sliding rod is connected to a welding mechanical arm, the welding mechanical arm is a multi-section mechanical arm, and the lower part of the sliding rod is fixed with a first camera;

[0010] A control cabinet is arranged on one side of the bracket, and a third camera is arranged on the welding robot arm.

[0011] According to the above technical solution, the clamping assembly is arranged above the supporting platform, and the clamping assembly includes a mounting seat, the upper sliding connection slide rod of the mounting seat, the internal thread of the mounting seat is connected to a threaded rod, a handwheel is fixed on the threaded rod, and the other end of the two groups of slide rods is fixed with a pressure plate 1, and the pressure plate 1 is connected to the threaded rod by a bearing.

[0012] According to the above technical solution, four groups of pressing components are provided, and the four groups of pressing components are respectively arranged around the supporting platform, and each group of pressing components includes an electric telescopic rod 1, and a pressure plate 2 is fixed to the output end of the electric telescopic rod 1. The contraction of the electric telescopic rod 1 presses the pressure plate 2 onto the wind turbine stator base.

[0013] According to the above technical solution, a vertical rod is fixed on the top of the driving box, and a second camera is fixed on one side of the vertical rod facing the wind turbine stator base;

[0014] The middle of the supporting platform is arranged to be in a hollow state.

[0015] According to the above technical solution, a warning light is fixed to the top of the bracket.

[0016] According to the above technical solution, the control cabinet includes a welding positioning control system, the welding positioning control system includes a welding detection module and a positioning processing module, the welding detection module includes an image generation submodule, a distance receiving submodule and a trial operation submodule, the image generation submodule is electrically connected to the first camera, the second camera and the third camera, the distance receiving submodule is electrically connected to the distance sensor, and the trial operation submodule is electrically connected to the rotation drive one, the rotation drive two and the welding robot arm.

[0017] According to the above technical solution, the positioning processing module includes a clamping submodule, a detection submodule and an alarm submodule. The clamping submodule is electrically connected to the electric telescopic rod one, the detection submodule is electrically connected to the hydraulic cylinder, the electric telescopic rod two and the cylinder, and the alarm submodule is electrically connected to the warning light.

[0018] According to the above technical solution, the detection component includes the following usage method:

[0019] When the detection component enters the inner wall of the wind turbine stator base, the second electric telescopic rod is controlled to extend so that the support plate is against the two groups of inner walls of the wind turbine stator base. When the support plate is against the inner wall of the wind turbine stator base, the push plate also contacts the inner wall. At this time, the cylinder is controlled to extend to drive the push plate to push toward the two groups of inner walls of the wind turbine stator base. Since there are two groups of cylinders, one group contacts the upper inner wall of the wind turbine stator base, and the other group contacts the lower inner wall of the wind turbine stator base. When the two groups of push plates are extended and contact the inner wall of the wind turbine stator base, the distance sensor detects the distance to the inner wall of the long slot to judge the moving distance of the push plate. When the distance between the upper and lower push plates does not change, it means that the upper and lower wind turbine stator base inner walls are matched at the joint. When the distance between the upper and lower push plates is inconsistent, it means that the upper and lower wind turbine stator base inner walls are not matched at the joint.

[0020] Compared with the prior art, the beneficial effect achieved by the present invention is that the present invention, by providing a detection component and a welding positioning control system, detects the matching degree of two sets of docked wind turbine stator frames before welding, and thus makes real-time adjustments to achieve precise positioning, thereby improving the welding strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 2 It is a schematic top view of the overall result of the present invention;

[0024] Figure 3 The present invention Figure 1 A magnified schematic diagram of region A;

[0025] Figure 4 The present invention Figure 2 A magnified schematic diagram of region B;

[0026] Figure 5 is a two-dimensional cross-sectional schematic diagram of a support plate of the present invention;

[0027] Figure 6The present invention Figure 1 Schematic diagram of the enlarged C region;

[0028] Figure 7 is a schematic diagram of a welding positioning control system of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection between the upper and lower wind turbine stator frames of the present invention;

[0030] In the figure: 1. bracket; 2. drive box; 3. bottom plate; 4. rotary drive 2; 5. control cabinet; 6. sliding rod; 7. welding robot arm; 8. vertical rod; 9. second camera; 10. bearing platform; 11. electric telescopic rod 1; 12. pressure plate 2; 13. mounting seat; 14. pressure plate 1; 15. hand wheel; 16. threaded rod; 17. sliding rod; 18. hydraulic cylinder; 19. sleeve; 20. fixing seat; 21. electric telescopic rod 2; 22. support plate; 23. first camera; 24. cylinder; 25. push plate; 26. connecting plate; 27. long slot; 28. warning light; 29. ​​distance sensor. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-8 The present invention provides a technical solution: an intelligent welding positioning device for a large wind turbine stator base, comprising a welding assembly, a flip assembly, a pressing assembly, a clamping assembly, and a detection assembly. The welding assembly is arranged on one side of the flip assembly, the pressing assembly and the clamping assembly are arranged on the flip assembly, the detection assembly is arranged below the welding assembly, the clamping assembly is used to clamp the wind turbine stator base, the pressing assembly is used to press and clamp the wind turbine stator base, and the detection assembly is used to adjust the position of the wind turbine stator base.

[0033] A warning light 28 is fixed to the top of the bracket 1 .

[0034] The welding assembly includes a bracket 1 and a linear drive. A sliding rod 6 is connected to the top of the bracket 1 through the linear drive. A welding robot arm 7 is connected to the bottom of the sliding rod 6. The welding robot arm 7 is a multi-section robot arm. A first camera 23 is fixed below the sliding rod 6. The sliding rod 6 can be controlled to move on the top of the bracket 1 through the linear drive to adjust the position of the welding robot arm 7.

[0035] A control cabinet 5 is disposed on one side of the bracket 1 , and a third camera (not shown in the figure) is disposed on the welding robot arm 7 .

[0036] The flipping assembly includes a base plate 3, with a drive box 2 fixed on both sides of the base plate 3, a rotation drive 1 is arranged inside the drive box 2, a connecting disk 26 is fixed to the output end of the rotation drive 1, a supporting platform 10 is fixed in the middle of the connecting disk 26, and a rotation drive 2 is arranged below the base plate 3. The rotation drive 2 drives the base plate 3 to rotate, thereby driving the supporting platform 10 to rotate. The rotation drive 1 can drive the supporting platform 10 to flip, and the combination of the rotation drive 2 and the rotation drive 1 can drive the supporting platform 10 to flip up and down.

[0037] The clamping assembly is arranged above the supporting platform 10, and the clamping assembly includes a mounting seat 13, an upper sliding connection slide rod 17 of the mounting seat 13, an internal thread of the mounting seat 13 is connected to a threaded rod 16, a hand wheel 15 is fixed to the threaded rod 16, and a pressure plate 14 is fixed to the other end of the two sets of slide rods 17, and the pressure plate 14 and the threaded rod 16 are connected by bearings. The wind turbine stator base is placed on the supporting platform 10, and the hand wheel 15 is rotated to push the pressure plate 14 toward the wind turbine stator base to clamp the wind turbine stator base.

[0038] Four groups of pressing components are provided, and the four groups of pressing components are respectively arranged around the supporting platform 10. Each group of pressing components includes an electric telescopic rod 11, and a pressing plate 2 12 is fixed to the output end of the electric telescopic rod 11. The electric telescopic rod 11 is retracted to press the pressing plate 2 12 onto the wind turbine stator base, and the wind turbine stator base can be fixed by cooperating with the clamping component.

[0039] A vertical rod 8 is fixed on the top of the driving box 2, and a second camera 9 is fixed on one side of the vertical rod 8 facing the wind turbine stator base.

[0040] The middle of the carrying platform 10 is set to be in a hollow state.

[0041] The detection component includes a hydraulic cylinder 18 and a rotary drive 3. The hydraulic cylinder 18 is fixed on the bottom plate 3. A sleeve 19 is fixed to the output end of the hydraulic cylinder 18. Five sets of fixed seats 20 are fixed around the sleeve 19. The interior of the fixed seat 20 is connected to an electric telescopic rod 21 through a rotary drive 3. The output end of the electric telescopic rod 21 is fixed to a support plate 22. Two sets of cylinders 24 are fixed on one side of the support plate 22. A push plate 25 is fixed to the output end of the cylinder 24. Two sets of long grooves 27 are opened inside the support plate 22. The push plate 25 is arranged inside the long slot 27, and a distance sensor 29 is fixed on one side of the push plate 25 close to the long slot 27. When the detection component needs to be started, the hydraulic cylinder 18 is started to extend to drive the five groups of electric telescopic rods 21 to move to the middle of the wind turbine stator base through the hollow part of the bearing platform 10, and then the electric telescopic rods 21 are driven to rotate by the rotation drive 3, so that the support plate 22 faces the inner wall of the wind turbine stator base, and then the electric telescopic rods 21 are controlled to extend to make the support plate 22 contact with the inner wall of the wind turbine stator base.

[0042] The control cabinet 5 includes a welding positioning control system, which includes a welding detection module and a positioning processing module. The welding detection module includes an image generation submodule, a distance receiving submodule and a test operation submodule. The image generation submodule is electrically connected to the first camera 23, the second camera 9 and the third camera. The distance receiving submodule is electrically connected to the distance sensor 29. The test operation submodule is electrically connected to the rotary drive 1, the rotary drive 2 and the welding robot arm 7.

[0043] The positioning processing module includes a clamping submodule, a detection submodule and an alarm submodule. The clamping submodule is electrically connected to the electric telescopic rod 11, the detection submodule is electrically connected to the hydraulic cylinder 18, the electric telescopic rod 21 and the cylinder 24, and the alarm submodule is electrically connected to the warning light 28.

[0044] Embodiment 1;

[0045] In this embodiment, the rotation drive one, the rotation drive two and the rotation drive three are all driven by motors, and the linear drive is driven by a motor threaded rod.

[0046] In this embodiment, the wind turbine stator base is clamped, and before welding, it is detected whether the two sets of wind turbine stator bases match each other, and the precise positioning is improved, thereby improving the welding strength.

[0047] Specifically, two wind turbine stator frames are stacked and placed on the supporting platform 10, the clamping assembly is started to clamp the two groups of wind turbine stator frames, and then the pressing assembly is started to press the two groups of wind turbine stator frames. It should be added that when clamping the wind turbine stator frames, the positions of the two groups of wind turbine stator frames are adjusted in real time to ensure that the wind turbine stator frames are docked and matched, thereby ensuring the welding quality.

[0048] After the wind turbine stator base is clamped, the trial operation submodule controls the start of the rotation drive 1 and the rotation drive 2, so that the flip assembly drives the two groups of wind turbine stator bases to flip, and drives the two groups of wind turbine stator bases to test run. After the test run, the flip assembly is suspended, and the first camera 23 and the second camera 9 are started to take photos of the wind turbine stator base from multiple angles, and transmit them to the image generation submodule, so that a complete three-dimensional image appearance of the complete wind turbine stator base is formed in the image generation submodule. Since the normal three-dimensional image appearance is set in the image generation submodule, the real-time generated image appearance is compared with the set image appearance. If the two do not match, it means that the position is offset during the trial run, indicating that the clamping component is not clamped well. After the flipping component stops, readjust the position of the wind turbine stator base, increase the strength of the clamping component to improve the clamping force. If the appearance of the image generated in real time is consistent with the set image appearance, it means that no displacement has occurred. When ensuring that there is no problem on the outside of the wind turbine stator base, it is necessary to further determine whether the internal docking of the wind turbine stator base matches to ensure the overall clamping accuracy. At this time, start the detection submodule to control the detection component to enter the inner walls of the two sets of wind turbine stator bases to determine whether the internal docking of the wind turbine stator base matches.

[0049] Specifically, when the detection component enters the inner wall of the wind turbine stator base, the electric telescopic rod 21 is controlled to extend so that the support plate 22 is against the two groups of inner walls of the wind turbine stator base. When the support plate 22 is against the inner wall of the wind turbine stator base, the push plate 25 also contacts the inner wall. At this time, the cylinder 24 is controlled to extend to drive the push plate 25 to push toward the two groups of inner walls of the wind turbine stator base. Since the cylinder 24 is provided with two groups, one group contacts the upper inner wall of the wind turbine stator base, and the other group contacts the lower inner wall of the wind turbine stator base. When the two groups of push plates 25 are extended and contact the inner wall of the wind turbine stator base, the distance sensor 29 detects the distance to the inner wall of the long slot 27 to judge the moving distance of the push plate 25. When the distance between the upper and lower groups of push plates 25 does not change, it indicates that the upper and lower wind turbine stator base inner wall joints match. When the distance between the upper and lower groups of push plates 25 is inconsistent, it indicates that the upper and lower wind turbine stator base inner wall joints do not match.

[0050] When the push plate 25 is working, the external first camera 23 and the second camera 9 are started again to transmit the taken photos to the image generation submodule to determine whether the outside of the wind turbine stator base is displaced under the action of the push plate 25. When the moving distances of the five groups of push plates 25 have not changed, and the outside of the wind turbine stator base has not been displaced under the action of the push plate 25, it means that the overall upper and lower wind turbine stator base inner wall joints are matched, and subsequent welding work can be carried out. At this time, the detection component is restored to its original position, the flip component and the welding robot arm 7 are started to work together, and the welding of the two groups of wind turbine stator base joints begins.

[0051] When the distances between at least one of the two groups of push plates 25 are inconsistent, and the outside of the wind turbine stator base does not move under the action of the push plates 25, it means that the inner walls of the upper and lower wind turbine stator bases are uneven, which can easily affect the welding strength and subsequent welding work cannot be performed. At this time, the signal is transmitted to the alarm submodule to control the warning light 28 to light up red, and the staff will handle it.

[0052] When the distances between at least one of the two groups of push plates 25 are inconsistent, and the outside of the wind turbine stator base is displaced under the action of the push plates 25, it means that the upper and lower wind turbine stator bases will move when subjected to force, indicating that the clamping assembly is unstable and the staff is required to inspect the clamping assembly.

[0053] Through the above steps, the matching degree of two sets of butt-jointed wind turbine stator frames is detected before welding, so that real-time adjustment can be made to achieve precise positioning, thereby improving the welding strength.

[0054] Embodiment 2:

[0055] In this embodiment, when welding two sets of wind turbine stator frame welds, the size of the welds is judged to improve the welding quality.

[0056] Specifically, the welding robot arm 7 is first controlled to weld two sets of wind turbine stator base joint welds (such as Figure 8 As shown in the figure, during welding, the third camera detects the gap between the two groups of wind turbine stator frames in real time, and transmits the photographed photos to the image generation submodule to determine the size of the gap between the two groups of wind turbine stator frames during welding. If the gap between the welds is large, the signal is transmitted to the pressing submodule to start the electric telescopic rod 11 to contract, further press the upper wind turbine stator frame, increase the tightness of the butt welds between the two groups of wind turbine stator frames, thereby improving the welding quality. When the pressing submodule is working, if the gap between the welds is still large, the swing amplitude of the welding robot arm 7 is controlled to expand the welding range.

[0057] It should be added that when welding, the external weld of the wind turbine stator frame should be welded first, and then the internal weld of the wind turbine stator frame should be welded.

[0058] After the welding of the welds at the external joints of the two groups of wind turbine stator frames is completed, the flipping of the flipping assembly is stopped, and the detection assembly is started through the detection submodule to push the inner wall of the wind turbine stator frame again. The method in Example 1 is used to judge the positions of the two groups of wind turbine stator frames again to judge whether the welding is firm. If displacement occurs, it means that the welding is not firm. The alarm submodule is used to alarm the staff, and the staff will do the welding. If no displacement occurs, it means that the welding is firm. The wind turbine stator frame is removed and the next process is entered.

[0059] Through the above steps, whether the welding is firm can be detected after the welding is completed, so as to further ensure the welding quality of the wind turbine stator frame after welding.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent welding positioning device for a large wind turbine stator frame, comprising a welding assembly, a flip assembly, a pressing assembly, a clamping assembly, and a detection assembly, characterized in that: The welding assembly is arranged on one side of the flip assembly, the pressing assembly and the clamping assembly are arranged on the flip assembly, the detection assembly is arranged below the welding assembly, the clamping assembly is used to clamp the wind turbine stator base, the pressing assembly is used to press and clamp the wind turbine stator base, and the detection assembly is used to adjust the position of the wind turbine stator base; The flip assembly comprises a bottom plate (3), a drive box (2) is fixed on both sides of the bottom plate (3), a rotary drive 1 is arranged inside the drive box (2), a connection disk (26) is fixed at the output end of the rotary drive 1, a bearing platform (10) is fixed in the middle of the connection disk (26), and a rotary drive 2 (4) is arranged below the bottom plate (3); The detection component comprises a hydraulic cylinder (18) and a rotary drive three, the hydraulic cylinder (18) being fixed on a bottom plate (3), a sleeve (19) being fixed on the output end of the hydraulic cylinder (18), five groups of fixing seats (20) being fixed around the sleeve (19), the interior of the fixing seat (20) being connected to an electric telescopic rod (21) via a rotary drive three, the output end of the electric telescopic rod (21) being fixed to a support plate (22), two groups of cylinders (24) being fixed on one side of the support plate (22), a push plate (25) being fixed on the output end of the cylinder (24), two groups of long grooves (27) being opened inside the support plate (22), the push plate (25) being arranged inside the long grooves (27), and a distance sensor (29) being fixed on the side of the push plate (25) close to the long grooves (27); The welding assembly comprises a bracket (1) and a linear drive, the upper portion of the bracket (1) is connected to a sliding rod (6) via the linear drive, the lower portion of the sliding rod (6) is connected to a welding mechanical arm (7), the welding mechanical arm (7) is a multi-section mechanical arm, and a first camera (23) is fixed to the lower portion of the sliding rod (6); A control cabinet (5) is provided on one side of the bracket (1), and a third camera is provided on the welding robot arm (7); The clamping assembly is arranged above the bearing platform (10), and the clamping assembly comprises a mounting seat (13), the upper sliding connection of the mounting seat (13) is connected to a slide rod (17), the internal thread of the mounting seat (13) is connected to a threaded rod (16), a hand wheel (15) is fixed to the threaded rod (16), and a pressure plate (14) is fixed to the other end of the two groups of slide rods (17), and the pressure plate (14) and the threaded rod (16) are connected by a bearing; The pressing components are provided in four groups, and the four groups of pressing components are respectively arranged around the bearing platform (10), and each group of pressing components comprises an electric telescopic rod (11), and a pressing plate (12) is fixed to the output end of the electric telescopic rod (11), and the electric telescopic rod (11) presses the pressing plate (12) onto the wind turbine stator base; A vertical rod (8) is fixed to the top of the drive box (2), and a second camera (9) is fixed to a side of the vertical rod (8) facing the wind turbine stator base; The middle of the supporting platform (10) is arranged in a hollow state; A warning light (28) is fixed on the top of the bracket (1); The control cabinet (5) includes a welding positioning control system, the welding positioning control system includes a welding detection module and a positioning processing module, the welding detection module includes an image generation submodule, a distance receiving submodule and a test operation submodule, the image generation submodule is electrically connected to the first camera (23), the second camera (9) and the third camera, the distance receiving submodule is electrically connected to the distance sensor (29), and the test operation submodule is electrically connected to the first rotary drive, the second rotary drive and the welding robot arm (7); The positioning processing module comprises a pressing submodule, a detection submodule and an alarm submodule, the pressing submodule being electrically connected to the first electric telescopic rod (11), the detection submodule being electrically connected to the hydraulic cylinder (18), the second electric telescopic rod (21) and the cylinder (24), and the alarm submodule being electrically connected to the warning light (28).

2. According to claim 1, a large-scale wind turbine stator frame intelligent welding positioning device is characterized in that: The detection component includes the following usage method: When the detection component enters the inner wall of the wind turbine stator base, the second electric telescopic rod (21) is controlled to extend so that the support plate (22) abuts against the two sets of inner walls of the wind turbine stator base. When the support plate (22) abuts against the inner wall of the wind turbine stator base, the push plate (25) also contacts the inner wall. At this time, the cylinder (24) is controlled to extend to drive the push plate (25) to push toward the two sets of inner walls of the wind turbine stator base. Since the cylinder (24) is provided with two sets, one set contacts the inner wall of the upper wind turbine stator base. The other group is in contact with the inner wall of the wind turbine stator base below. When the two groups of push plates (25) are extended and in contact with the inner wall of the wind turbine stator base, the distance sensor (29) detects the distance to the inner wall of the long slot (27) to determine the moving distance of the push plates (25). When the distance between the upper and lower groups of push plates (25) does not change, it indicates that the joints of the upper and lower wind turbine stator base inner walls match. When the distance between the upper and lower groups of push plates (25) is inconsistent, it indicates that the joints of the upper and lower wind turbine stator base inner walls do not match.

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