Universal automatic machining equipment for welded support of large wind turbine generator

Abstract

The universal automatic machining equipment comprises a mounting mechanism and a driving mechanism, the driving mechanism is arranged above the mounting mechanism, the mounting mechanism is used for placing the welded support of the large wind turbine generator, and the driving mechanism is used for assembling bolts. Wherein the mounting mechanism comprises a clamping assembly, a rotating assembly, a clamping assembly, a supporting assembly and a roller assembly, the rotating assembly comprises a base plate and a bottom plate, the base plate is arranged above the bottom plate, a speed reducer is fixed to the bottom of the base plate, a first motor is arranged below the speed reducer, and a second motor is arranged below the first motor. A chain transmission group is connected between the first motor and the speed reducer, and a visual unit is fixed below the mounting plate; the output end of the hydraulic drive is fixed to the supporting column, and a plurality of distance sensors are fixed to the periphery of the supporting column, the matching degree between holes can be judged when bolts are installed, and the stability of bolt installation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bolt assembly of a rear bracket of a wind turbine generator, in particular to general automatic processing equipment for welding rear brackets of a large wind turbine generator set. Background Art

[0002] The wind turbine rear bracket is the bracket of the wind turbine, which is used to support, fix and protect the wind turbine. The wind turbine rear bracket needs to be used to weld various components, so it is called the welding rear bracket of the generator set.

[0003] The post-weld bracket of the wind turbine generator set also needs to be installed with various accessories to improve the stability of the post-weld bracket. Generally, the accessories are assembled on the post-weld bracket through general automatic processing equipment, and the bolts are assembled automatically. However, the general automatic processing equipment for the post-weld bracket of the existing wind turbine generator set cannot judge the fit of the holes when installing the bolts, resulting in unstable bolt installation.

[0004] Therefore, it is necessary to provide a universal automatic processing equipment for the welded rear bracket of a large wind turbine generator set, which can judge the fit between the holes when installing the bolts and improve the stability of the bolt installation. Summary of the invention

[0005] The object of the present invention is to provide a general automatic processing device for welding rear brackets of large wind turbines to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a general automatic processing equipment for welding rear brackets of large wind turbines, comprising a mounting mechanism and a driving mechanism, wherein the driving mechanism is arranged above the mounting mechanism, the mounting mechanism is used to place the welding rear brackets of the wind turbines, and the driving mechanism is used to assemble bolts, wherein: The mounting mechanism comprises a clamping assembly, a rotating assembly, a clamping assembly, a supporting assembly and a roller assembly, wherein: The rotating assembly includes a chassis and a bottom plate, the chassis is arranged above the bottom plate, a reducer is fixed to the bottom of the chassis, a first motor is arranged below the reducer, and a chain transmission group is connected between the first motor and the reducer; The clamping assembly is provided with three groups, each group of the clamping assembly includes a hydraulic cylinder and a base, the hydraulic cylinder and the base are fixed on the chassis, a clamping plate is slidably connected to the base, the clamping plate is arc-shaped, two groups of sliding rods are fixed on the clamping plate, the sliding rods are slidably connected to the base, and the output end of the hydraulic cylinder is fixedly connected to the clamping plate; The clamping assembly includes a bracket fixed on a bottom plate, a motor screw drive 1 is arranged on the bracket, a mounting plate is fixed on the motor screw drive 1, an electric telescopic rod is fixed on the mounting plate, and a clamping claw cylinder is fixed on the output end of the electric telescopic rod; A visual unit is fixed below the mounting plate; The support assembly is arranged in the middle of the chassis, and the support assembly includes a support column arranged on the chassis. A hydraulic drive is fixed above the center of the chassis, and the output end of the hydraulic drive is fixed to the support column. A plurality of distance sensors are fixed around the support column.

[0007] According to the above technical solution, the roller assembly includes a roller seat fixed on the bottom plate, and the roller seat is provided with a roller.

[0008] According to the above technical solution, the driving mechanism includes a moving component and a lifting component, the moving component includes two groups of support frames, the two groups of support frames are respectively fixed on both sides of the base plate, one group of the support frames is provided with a motor screw drive 2, and the two groups of support frames are slidably connected with a transverse fixing frame, the motor screw drive 2 is connected to the transverse fixing frame, one side of the transverse fixing frame is provided with a motor screw drive 3, the motor screw drive 3 is fixed with a bearing plate, and the bearing plate is connected to the lifting component.

[0009] According to the above technical solution, the lifting assembly includes a threaded sleeve fixed on the center of the supporting plate, a motor screw drive four is arranged on the supporting plate, the screw on the motor screw drive four is threadedly connected to the threaded sleeve, a connecting plate is fixed on one side of the motor screw drive four, and the connecting plate is slidably connected to the supporting plate.

[0010] According to the above technical solution, two groups of bolt assembly components and two groups of bolt limiting components are arranged on the right side of the connecting plate, and each group of the bolt assembly components includes a motor screw drive five, and the motor screw drive five is fixed on the connecting plate, and a lifting plate is fixed on the motor screw drive five, and the lifting plate is slidably connected to the connecting plate, and an automatic bolt locker is fixed on the lifting plate.

[0011] According to the above technical solution, each group of the bolt limiting components includes a mounting base fixed on the lifting plate, a first cylinder is fixed on the mounting base, a connector is fixed on the output end of the first cylinder, a connecting frame is fixed on the connector, a connecting base is fixed on the connecting frame, the connecting base and the lifting plate are slidably connected, a lower mounting sleeve is fixed at the bottom of the connecting seat, a lower bearing of the mounting sleeve is connected to a limiting sleeve, a limiting claw is fixed below the lifting plate, the limiting sleeve is arranged in the limiting claw, and the output end of the automatic bolt locker is arranged in the limiting sleeve.

[0012] According to the above technical solution, the bolt assembly assembly includes the following usage method: First, control the first cylinder to extend, and push the connecting seat to run on the lifting plate through the connector, so that the limit sleeve is driven downward to press the bolt surface through the installation sleeve, and then control the motor screw to drive the fifth start to drive the automatic bolt locker to move downward, and at the same time start the automatic bolt locker to rotate the bolt to fix the accessories to the rear bracket of the wind turbine.

[0013] According to the above technical solution, after the first set of bolts are assembled, the rotating assembly is started to drive the chassis to run, and then the next set of holes corresponding to the wind turbine rear bracket and the accessories are moved again to the bottom of the clamping assembly, and the bolts are continued to be placed in the corresponding holes. At this time, when placing the bolts, it is necessary to use the visual unit to analyze whether the bolts are placed smoothly to determine the fit between the accessories and the holes in the rear bracket of the wind turbine.

[0014] Compared with the prior art, the beneficial effect achieved by the present invention is as follows: the present invention, by providing a visual unit, after the first group of bolts are assembled, the rotating assembly is started to drive the chassis to run, and then the next group of holes corresponding to the wind turbine rear bracket and the accessories are moved again to the bottom of the clamping claw assembly, and the bolts are continued to be placed in the corresponding holes. At this time, when placing the bolts, it is necessary to use the visual unit to analyze whether the bolts are placed smoothly to judge the fit between the accessories and the holes in the rear bracket of the wind turbine, thereby improving the stability of the bolt installation and ensuring the installation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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: Figure 1 It is a schematic diagram of the overall front structure of the present invention; Figure 2 It is a schematic bottom view of the overall structure of the present invention; Figure 3 is a three-dimensional schematic diagram of the mounting mechanism of the present invention; Figure 4 is a schematic diagram of the interior of the driving mechanism of the present invention; Figure 5 The present invention Figure 1 A local enlarged schematic diagram of area A; Figure 6 The present invention Figure 5 A local enlarged schematic diagram of the C region; Figure 7 The present invention Figure 4 A local enlarged schematic diagram of area B; Figure 8 The present invention Figure 2 A local enlarged schematic diagram of the D region; Fig. 9 is a two-dimensional schematic diagram of a visual unit of the present invention; In the figure: 1. bottom plate; 2. chassis; 3. support frame; 4. motor screw drive three; 5. bracket; 6. motor screw drive one; 7. first motor; 8. reducer; 9. limit sleeve; 10. support column; 11. distance sensor; 12. hydraulic cylinder; 13. base; 14. clamping plate; 15. slide rod; 16. mounting plate; 17. electric telescopic rod; 18. clamping claw cylinder; 19. motor screw drive five; 20. connecting plate; 21. lifting plate; 22. automatic bolt locker; 23. connecting seat; 24. roller; 25. mounting seat; 26. first cylinder; 27. connector; 28. connecting frame; 29. ​​mounting sleeve; 30. limit clamping claw; 31. bearing plate; 32. threaded sleeve; 33. motor screw drive four; 34. roller seat; 35. visual unit. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-9 , the present invention provides a technical solution: a general automatic processing equipment for the welded rear bracket of a large wind turbine, comprising a mounting mechanism and a driving mechanism, the driving mechanism is arranged above the mounting mechanism, the mounting mechanism is used to place the welded rear bracket of the wind turbine, and the driving mechanism is used to assemble bolts; The mounting mechanism includes a clamping assembly, a rotating assembly, a clamping assembly, a supporting assembly and a roller assembly. The rotating assembly includes a chassis 2 and a bottom plate 1. The chassis 2 is arranged above the bottom plate 1. A reducer 8 is fixed to the bottom of the chassis 2. A first motor 7 is arranged below the reducer 8. A chain transmission group is connected between the first motor 7 and the reducer 8. When the first motor 7 is started, the reducer 8 is driven to run through the chain transmission group, and the chassis 2 is driven to rotate through the cooperation of the internal gears of the reducer 8. There are three groups of clamping assemblies, each group of clamping assemblies includes a hydraulic cylinder 12 and a base 13, the hydraulic cylinder 12 and the base 13 are fixed on the chassis 2, a clamping plate 14 is slidably connected to the base 13, the clamping plate 14 is arc-shaped, two groups of slide bars 15 are fixed to the clamping plate 14, the slide bars 15 are slidably connected to the base 13, the output end of the hydraulic cylinder 12 is fixedly connected to the clamping plate 14, the rear bracket of the wind turbine is placed on the chassis 2, the hydraulic cylinder 12 is started to extend and drive the clamping plate 14 to approach the side of the rear bracket of the wind turbine, and the rear bracket of the wind turbine is clamped and fixed by the cooperation of the three groups of clamping assemblies; The clamping assembly includes a bracket 5 fixed on the base plate 1, a motor screw drive 6 is provided on the bracket 5, a mounting plate 16 is fixed on the motor screw drive 6, an electric telescopic rod 17 is fixed on the mounting plate 16, a clamping claw cylinder 18 is fixed on the output end of the electric telescopic rod 17, and a bolt transmission device is provided on one side of the bracket 5 for transmitting bolts. The motor screw drive 6 is started to drive the mounting plate 16 to move, and the bolts on the transmission device are clamped by the clamping claw cylinder 18 and transported to the top of the rear bracket of the wind turbine. The electric telescopic rod 17 is started to extend, and the clamping claw cylinder 18 is controlled to insert the bolts into the bolt holes of the rear bracket of the wind turbine.

[0018] A vision unit 35 is fixed below the mounting plate 16 .

[0019] The support assembly is arranged in the middle of the chassis 2, and the support assembly includes a support column 10 arranged on the chassis 2. A hydraulic drive is fixed above the center of the chassis 2, and the output end of the hydraulic drive is fixed to the support column 10. A plurality of distance sensors 11 are fixed around the support column 10, and accessories of the rear bracket of the wind turbine are arranged above the support column 10.

[0020] The vision unit 35 may be a camera.

[0021] The roller assembly includes a roller seat 34 fixed on the base plate 1 , on which a roller 24 is arranged, and the roller 24 is in contact with the chassis 2 . The roller assembly can support the chassis 2 .

[0022] The driving mechanism includes a moving component and a lifting component. The moving component includes two groups of support frames 3. The two groups of support frames 3 are respectively fixed on both sides of the base plate 1. One group of support frames 3 is provided with a motor screw drive 2. The two groups of support frames 3 are slidably connected with a transverse fixing frame. The motor screw drive 2 is connected to the transverse fixing frame. When the motor screw drive 2 is started, the transverse fixing frame is driven to move. A motor screw drive 3 4 is provided on one side of the transverse fixing frame. A bearing plate 31 is fixed on the motor screw drive 3 4. The bearing plate 31 is connected to the lifting component. When the motor screw drive 3 4 is started, the bearing plate 31 is driven to move. The lifting component is driven to move back and forth on the chassis 2 through the cooperation of the motor screw drive 2 and the motor screw drive 3 4.

[0023] The lifting assembly includes a threaded sleeve 32 fixed on the center of the bearing plate 31, and a motor screw drive four 33 is provided on the bearing plate 31. The screw on the motor screw drive four 33 is threadedly connected to the threaded sleeve 32. A connecting plate 20 is fixed to one side of the motor screw drive four 33. The connecting plate 20 and the bearing plate 31 are slidably connected. The motor screw drive four 33 is started, and the motor screw drive four 33 moves up and down through the cooperation between the screw on the motor screw drive four 33 and the threaded sleeve 32, thereby driving the connecting plate 20 to move up and down; Two groups of bolt assembly components and two groups of bolt limiter components are arranged on the right side of the connecting plate 20, each group of bolt assembly components includes a motor screw drive 5 19, the motor screw drive 5 19 is fixed on the connecting plate 20, a lifting plate 21 is fixed on the motor screw drive 5 19, the lifting plate 21 and the connecting plate 20 are slidably connected, an automatic bolt locker 22 is fixed on the lifting plate 21, and the motor screw drive 5 19 is started to drive the lifting plate 21 to slide up and down on the connecting plate 20, thereby driving the automatic bolt locker 22 to move up and down; Each set of bolt limiting components includes a mounting seat 25 fixed on the lifting plate 21, a first cylinder 26 fixed on the mounting seat 25, a connector 27 fixed on the output end of the first cylinder 26, a connecting frame 28 fixed on the connector 27, a connecting seat 23 fixed on the connecting frame 28, the connecting seat 23 and the lifting plate 21 are slidably connected, a lower mounting sleeve 29 is fixed to the bottom of the connecting seat 23, the lower bearing of the mounting sleeve 29 is connected to the limiting sleeve 9, a limiting clamp 30 is fixed below the lifting plate 21, the limiting sleeve 9 is arranged in the limiting clamp 30, and the output end of the automatic bolt locker 22 is arranged in the limiting sleeve 9.

[0024] A general automatic processing device for welding rear brackets of large wind turbines also includes a control system, and the distance sensor 11 and the visual unit 35 are both electrically connected to the control system; It should be noted that the general automatic processing equipment is controlled and operated by a control system.

[0025] It should be added that the above-mentioned motor screw drive is an existing motor that controls the screw to rotate and controls the device to run linearly. It is a prior art and will not be described in detail here.

[0026] Embodiment 1: In this embodiment, the bolts are installed on the accessories of the rear bracket of the wind turbine; Specifically, place the rear bracket of the wind turbine on the chassis 2, and then place the accessories of the rear bracket of the wind turbine on the rear bracket of the wind turbine so that the holes are aligned with each other, start the hydraulic drive to control the support column 10 to lift, which can support the accessories and facilitate the subsequent installation of bolts, start the external bolt transmission equipment to transport the bolts to the bottom of the clamping assembly, start the clamping assembly to clamp the bolts and run them above the holes, start the electric telescopic rod 17 to extend and drive the clamping claw cylinder 18 to put the bolts into the holes.

[0027] The chassis 2 is driven to rotate by the rotating assembly, and the hole for inserting the bolt is moved to the bottom of the automatic bolt locker 22. The lifting assembly and the moving assembly are controlled to operate so that a group of bolt assembly assemblies that first approach the bolt are moved to the top of the bolt to start installing the bolt.

[0028] When the bolt assembly assembly moves downward to work, first control the first cylinder 26 to extend, and push the connecting seat 23 to run on the lifting plate 21 through the connector 27, so as to drive the limit sleeve 9 to press down the bolt surface through the installation sleeve 29, and then control the motor screw drive five 19 to start and drive the automatic bolt locker 22 to move downward, and at the same time start the automatic bolt locker 22 to rotate the bolt to fix the accessory to the rear bracket of the wind turbine.

[0029] It should be added that when the bolt assembly is working, the limiting clamp 30 plays a limiting role on the limiting sleeve 9, so as to ensure the stability of the assembly bolt.

[0030] After the first set of bolts are assembled, the rotating assembly is started to drive the chassis 2 to run, and then the next set of holes corresponding to the wind turbine rear bracket and the accessories are moved to the bottom of the clamp assembly again, and the bolts are placed in the corresponding holes. At this time, when placing the bolts, it is necessary to use the visual unit 35 to analyze whether the bolts are placed smoothly to determine the matching degree between the accessories and the holes of the wind turbine rear bracket: Specifically, when the clamping claw cylinder 18 clamps the bolt and places it in the hole between the accessory and the rear bracket of the wind turbine, the visual unit 35 is started to capture the situation of the bolt being placed. When it is identified that the bolt is successfully placed in the hole, it indicates that the fit between the accessory and the rear bracket of the wind turbine is high. When it is identified that the bolt cannot be successfully placed in the hole, a signal is transmitted to the hydraulic cylinder 12 near the place where the bolt is not smoothly placed, and the hydraulic cylinder 12 at that place is started to extend, so that the clamping plate 14 squeezes the side of the rear bracket of the wind turbine where the bolt is not smoothly placed, causing it to deform slightly, so that the hole of the rear bracket of the wind turbine at that place can be slightly displaced so as to correspond to the hole on the accessory, and the fit between the hole of the accessory and the hole of the rear bracket of the wind turbine is adjusted. At this time, the clamping claw cylinder 18 is controlled again to adjust the position of the bolt. When the bolt completely enters the hole between the accessory and the rear bracket of the wind turbine, it indicates that the fit between the hole of the accessory and the rear bracket of the wind turbine is intermediate. At this time, the bolt and the hole are moved to the bottom of the automatic bolt locker 22 by rotating the assembly again. After the hydraulic cylinder 12 pushes the rear bracket of the wind turbine to form a slight deformation, the bolt placement position is readjusted. When the visual unit 35 recognizes that the bolt still cannot be placed normally, it means that the hole between the accessory and the rear bracket of the wind turbine is low-level. The signal is transmitted to the control system, and the installation of the bolt is suspended for processing by the staff.

[0031] Through the above steps, the matching conditions between the holes can be judged when installing the bolts, thereby improving the stability of the bolt installation and ensuring the installation quality.

[0032] Embodiment 2: In this embodiment, when the second set of bolts cannot be installed smoothly, in order to ensure that the third set of bolts can be placed smoothly, a secondary installation method is adopted when installing the second set of bolts; Specifically, after the second group of bolts is adjusted in the manner of Example 1, the second group of bolts is moved to the bottom of the first group of bolt assembly components, and the first group of bolt assembly components are controlled to start installing the second group of bolts. It should be noted that the installation of the second group of bolts is paused halfway, and then the second group of bolts is moved to the bottom of the second group of bolt assembly components by the rotating component. At this time, the clamping jaw assembly is controlled to install the third group of bolts. If it is identified through the visual unit 35 that the third group of bolts are installed smoothly, it means that the installation of the second group of bolts does not affect the position of the third group of holes of the accessories and the rear bracket of the wind turbine, then the second group of bolt assembly components are continued to be controlled to assemble the bolts. If the visual unit 35 identifies that the third group of bolts is not smooth, it means that the installation of the second group of bolts affects the position of the subsequent accessories and the rear bracket holes of the wind turbine, then repeat the step of slightly deforming the rear bracket of the wind turbine in Example 1 to match the positions of the accessories and the rear bracket holes of the wind turbine, and then readjust the third group of bolts.

[0033] Through the above steps, a staged installation is adopted when installing the second set of bolts to ensure that the third set of bolts can be installed in place. It can also be determined whether the installation of the bolts will affect the matching degree between the subsequent accessories and the rear bracket holes of the wind turbine, thereby ensuring the quality of the bolt assembly.

[0034] Embodiment three: In this embodiment, the distance sensor 11 is used to determine the deformation of the rear bracket of the wind turbine when it is squeezed, and to determine whether the rear bracket of the wind turbine is prone to deformation; Specifically, when it is necessary to adjust the relationship between the accessories and the hole of the rear bracket of the wind turbine, the distance sensor 11 is used to analyze whether the inner diameter of the rear bracket of the wind turbine has changed. Since the normal distance between the inner wall of the rear bracket of the wind turbine and the support column 10 is set in the control system, the distance sensor 11 transmits the real-time detected distance between the inner wall of the rear bracket of the wind turbine and the support column 10 to the control system. When the distance changes, it means that the inner diameter of the rear bracket of the wind turbine changes when it is squeezed, indicating that the rear bracket of the wind turbine is prone to deformation, which means that there may be problems with the quality of the rear bracket of the wind turbine, and the signal is transmitted to the control system to inform the staff.

[0035] 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.

[0036] Finally, it should be noted that the above 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. A general automatic processing equipment for welding rear brackets of large wind turbines, including a mounting mechanism and a driving mechanism, characterized in that: The driving mechanism is arranged above the mounting mechanism, the mounting mechanism is used to place the rear bracket of the wind turbine generator set after welding, and the driving mechanism is used to assemble bolts, wherein: The mounting mechanism comprises a clamping assembly, a rotating assembly, a clamping assembly, a supporting assembly and a roller assembly, wherein: The rotating assembly comprises a chassis (2) and a bottom plate (1), the chassis (2) being arranged above the bottom plate (1), a reducer (8) being fixed at the bottom of the chassis (2), a first motor (7) being arranged below the reducer (8), and a chain transmission group being connected between the first motor (7) and the reducer (8); The clamping components are provided in three groups, each group of the clamping components comprises a hydraulic cylinder (12) and a base (13), the hydraulic cylinder (12) and the base (13) are fixed on the chassis (2), a clamping plate (14) is slidably connected to the base (13), the clamping plate (14) is arc-shaped, two groups of sliding rods (15) are fixed to the clamping plate (14), the sliding rods (15) are slidably connected to the base (13), and the output end of the hydraulic cylinder (12) is fixedly connected to the clamping plate (14); The gripping assembly comprises a bracket (5) fixed on a base plate (1), a motor screw drive (6) being provided on the bracket (5), a mounting plate (16) being fixed on the motor screw drive (6), an electric telescopic rod (17) being fixed on the mounting plate (16), and a gripping claw cylinder (18) being fixed on the output end of the electric telescopic rod (17); A visual unit (35) is fixed below the mounting plate (16); The support assembly is arranged in the middle of the chassis (2), and comprises a support column (10) arranged on the chassis (2), a hydraulic drive is fixed above the center of the chassis (2), an output end of the hydraulic drive is fixed to the support column (10), and a plurality of distance sensors (11) are fixed around the support column (10).

2. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 1 is characterized by: The roller assembly comprises a roller seat (34) fixed on the base plate (1), and a roller (24) is arranged on the roller seat (34).

3. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 2 is characterized by: The driving mechanism comprises a moving component and a lifting component, wherein the moving component comprises two groups of support frames (3), the two groups of support frames (3) are respectively fixed to two sides of the bottom plate (1), one group of the support frames (3) is provided with a motor screw drive 2, the two groups of the support frames (3) are slidably connected with a transverse fixing frame, the motor screw drive 2 is connected to the transverse fixing frame, a motor screw drive 3 (4) is provided on one side of the transverse fixing frame, a bearing plate (31) is fixed on the motor screw drive 3 (4), and the bearing plate (31) is connected to the lifting component.

4. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 3 is characterized by: The lifting assembly comprises a threaded sleeve (32) fixed on the center of a bearing plate (31); a motor screw drive four (33) is arranged on the bearing plate (31); a screw on the motor screw drive four (33) is threadedly connected to the threaded sleeve (32); a connecting plate (20) is fixed on one side of the motor screw drive four (33); and the connecting plate (20) is slidably connected to the bearing plate (31).

5. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 4, characterized in that: Two groups of bolt assembly components and two groups of bolt limiting components are arranged on the right side of the connecting plate (20), and each group of the bolt assembly components includes a motor screw drive five (19), the motor screw drive five (19) is fixed on the connecting plate (20), a lifting plate (21) is fixed on the motor screw drive five (19), the lifting plate (21) is slidably connected to the connecting plate (20), and an automatic bolt locker (22) is fixed on the lifting plate (21).

6. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 5, characterized in that: Each group of the bolt limiting components comprises a mounting seat (25) fixed on the lifting plate (21), a first cylinder (26) fixed on the mounting seat (25), a connector (27) fixed on the output end of the first cylinder (26), a connecting frame (28) fixed on the connector (27), a connecting seat (23) fixed on the connecting frame (28), the connecting seat (23) and the lifting plate (21) are slidably connected, a lower mounting sleeve (29) is fixed at the bottom of the connecting seat (23), a lower bearing of the mounting sleeve (29) is connected to a limiting sleeve (9), a limiting clamping claw (30) is fixed below the lifting plate (21), the limiting sleeve (9) is arranged in the limiting clamping claw (30), and the output end of the automatic bolt locker (22) is arranged in the limiting sleeve (9).

7. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 6, characterized in that: The bolt assembly assembly includes the following method of use: First, the first cylinder (26) is controlled to extend, and the connecting seat (23) is pushed to move on the lifting plate (21) through the connector (27), so that the limiting sleeve (9) is driven downward to press the surface of the bolt through the installation sleeve (29), and then the motor screw drive five (19) is controlled to start and drive the automatic bolt locker (22) to move downward, and at the same time, the automatic bolt locker (22) is started to rotate the bolt to fix the accessory to the rear bracket of the wind turbine.

8. The general automatic processing equipment for welding rear brackets of large wind turbines according to claim 7, characterized in that: After the first set of bolts are assembled, the rotating assembly is started to drive the chassis (2) to run, and then the next set of holes corresponding to the wind turbine rear bracket and the accessories are moved to the bottom of the clamping claw assembly again, and the bolts are placed in the corresponding holes. At this time, when placing the bolts, it is necessary to use the visual unit (35) to analyze whether the bolts are placed smoothly to judge the matching degree between the accessories and the holes in the wind turbine rear bracket.

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