Automatic welding equipment for wind power tower drum production and control method

Abstract

The invention relates to the field of wind power tower tube welding, in particular to automatic welding equipment for wind power tower tube production and a control method.The automatic welding equipment comprises a seat rail, and a sliding table is arranged on the seat rail in a sliding fit mode; the limiting mechanism is used for carrying out clamping and heat insulation treatment on the tower drum, and the limiting mechanism is arranged on the sliding table; support rollers are arranged on the seat rails, each support roller is composed of a supporting seat and a rotating roller, the number of the support rollers is two, the support rollers are symmetrically arranged on the two sides of the lower portion of the tower drum and used for driving the tower drum to rotate, and the rotating rollers in the support rollers are connected with a motor through a coupler. According to the automatic welding equipment for wind power tower drum production and the control method, a device with a certain low temperature is placed at the welding position, so that the device is used for absorbing waste heat, the influence of high temperature on base metal near a welding seam is reduced, and the problems of coarse grains, hardness reduction and the like are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power tower welding, and in particular to automatic welding equipment and a control method for producing wind power towers. Background Art

[0002] The wind turbine tower is the tower pole for wind power generation. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the unit.

[0003] Due to the long length of wind turbine towers, in order to improve the convenience of transportation and preparation efficiency, the existing technology often adopts segmented welding to form small segments that are easy to transport and assemble, and then transport them to the site for secondary welding and assembly. In the small segment stage, the tower is mostly welded manually, which requires preparatory work such as coaxial adjustment and weld adjustment. The welding efficiency is low. In addition, during the welding process, there will be solder splashing and a large amount of high-temperature heat generated at the welding site. The splashing solder will cause burns and damage to other parts of the tower. The high-temperature heat will not only cause thermal stress on the outer wall of the tower, but also on the inner wall. Summary of the Invention

[0004] The present invention provides automatic welding equipment and a control method for producing wind turbine towers to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an automatic welding device for producing a wind turbine tower, comprising a seat rail, on which a sliding table is slidably adapted; A limiting mechanism for clamping and heat-insulating the tower, wherein the limiting mechanism is arranged on the sliding platform; The seat rail is provided with a support roller, wherein the support roller is composed of a support seat and a rotating roller. There are two support rollers and they are symmetrically arranged on both sides below the tower, and are used to drive the tower to rotate. The rotating roller in the support roller is connected to a motor through a coupling, and the motor is fixedly mounted on the outside of the support roller seat; A scraping mechanism for smoothing protruding weld parts and cleaning spattered weld points, the scraping mechanism being slidably adapted on the seat rail; An inserting plate is inserted into the outer side of the seat rail, a bracket is fixedly connected to the top of the inserting plate, and a welding head is provided on the bracket, wherein the welding head is used to weld the two towers.

[0006] Preferably, the limiting mechanism includes a part to be welded and a circular bearing platform, wherein the part to be welded is the tower, the circular bearing platform is slidably mounted on the outside of the sliding platform, and a hollow rod is rotatably mounted inside the circular bearing platform.

[0007] Preferably, the hollow rod is fixedly connected with an annular pipe on the outside, one side of the annular pipe is connected with the external inflating device, the other side of the annular pipe is fixedly connected with a hollow pipe, wherein the annular pipe and the hollow pipe are used for gas flow and backflow treatment, and the annular pipe has elasticity.

[0008] Preferably, a support shaft frame is fixedly installed at the bottom of the inner cavity of the hollow rod, a central shaft is rotatably installed in the support shaft frame, and one end of the central shaft away from the support shaft frame is rotatably installed in the inner cavity of the hollow rod.

[0009] Preferably, a shaft sleeve is fixedly connected to the outside of the central shaft, an external block is fixedly connected to the outside of the shaft sleeve, and the two ends of the external block are symmetrically and slidably matched with limiting rails; The limiting rails are used for limiting the angle of deflection of the central shaft; A double-head strip is fixedly connected to the inside of the hollow rod at an end away from the limiting rails.

[0010] Preferably, a curved panel is inserted into the surface of the hollow rod, one side of the curved panel having a curved surface is extruded and matched with the external block, and an elastic protective pad is fixedly connected to the side of the curved panel away from the external block, wherein the elastic protective pad is extruded and matched with the inner wall of the to-be-welded part; The outside of the curved panel is inserted into the hollow pipe, a gas cushion ring is fixedly connected to one end of the hollow pipe away from the annular pipe, and a No. 2 nested arc-shaped ring is fixedly installed on the inside of the gas cushion ring.

[0011] Preferably, the cleaning mechanism comprises a square frame body, the square frame body is slidably matched with the seat rail, and elastic heat insulation sheets are fixedly connected to the inside of the square frame body, wherein the number of the elastic heat insulation sheets is two, and the two elastic heat insulation sheets are symmetrically connected to the upper and lower sides of the inner cavity of the square frame body; A No. 2 nested arc-shaped ring is fixedly installed at one end of the elastic heat insulation sheet away from the square frame body, and an elastic ring is fixedly connected to the inner wall of the No. 2 nested arc-shaped ring.

[0012] Preferably, a fixed block is fixedly connected to the outside of the square frame body, an embedded rod is fixedly installed at the top of the fixed block, an inner sliding rod is slidably matched with the inside of the embedded rod, and the bottom of the inner sliding rod is fixedly connected with the No. 2 nested arc-shaped ring. A nut is fixedly installed at the top of the embedded rod, a threaded rod is threadedly connected with the inside of the nut, a No. 1 bearing is extruded and matched with the bottom of the threaded rod, and the outside of the No. 1 bearing is fixedly connected with the inner sliding rod. The top end of the threaded rod is fixedly connected with a top rod, the outer side of the top rod is extruded with a No. 2 bearing, the outer side of the No. 2 bearing is fixedly connected with a reset spring, and the bottom end of the reset spring is fixedly connected with the nut.

[0013] Preferably, the outer side of the square frame body is fixedly connected with a connecting shaft, the outer side of the connecting shaft is rotatably installed with a flattening scraper, the outer side of the connecting shaft is fixedly connected with a connecting sleeve, the bottom of the connecting sleeve is fixedly installed with an electric push rod, and the bottom of the electric push rod is fixedly installed with a impurity removing scraper; The outer side of the impurity removing scraper is fixedly installed with a small motor, the output end of the small motor is connected with a layered blade, wherein the layered blade is rotatably installed in the interior of the impurity removing scraper, the top end of the impurity removing scraper is sleeved with a liquid inlet pipe, and the bottom end is sleeved with a liquid outlet pipe. The outer side of the bottom of the impurity removing scraper is fixedly connected with a No. 1 guide strip, and the outer side of the No. 1 guide strip is connected with a No. 2 guide strip through a connecting piece.

[0014] The control method of the automatic welding of the wind power tower drum production comprises the following steps: Step one: through the rotation of the central shaft, the shaft sleeve fixedly connected on the outer side of the central shaft will deflect clockwise together with the external connecting block, and extrude and adapt with the curved surface part of the curved surface plate, and the other side of the curved surface plate is fixedly connected with the elastic protective pad, so that the elastic protective pad will move outward and extrude the inner wall of the to-be-welded part, so that the hollow rod is tightly connected with the to-be-welded part. Step two: with the outward movement of the curved surface plate, the hollow pipe will move outward together with the air cushion ring, wherein the air cushion ring is elastic and the inner side is connected with the No. 1 nested arc ring, so that the inner diameter of the air cushion ring will increase until the part to be welded near the to-be-welded part. Step three: after the device inside the to-be-welded part is set, the height of the two to-be-welded parts is adjusted by the sliding table, so that the centers of the two to-be-welded parts are at the same height, then the motor is started, the rotating roller in the support roller connected with the output end through the shaft coupling will rotate and drive the to-be-welded part to rotate, then the plug-in plate is inserted into the interior of the seat rail, so that the welding head connected with the support will move towards the part to be welded of the to-be-welded part, and finally the welding process is realized.

[0015] Compared with the prior art, the beneficial effects of the present application are: 1. When the inner wall clamping treatment is performed on the to-be-welded part with a large inner diameter size, the central shaft is again deflected clockwise, so that the curved surface plate can extend outward by a certain length and clamp the inner wall of the to-be-welded part with a large size, thereby achieving the effect that the inner wall clamping treatment can be performed on to-be-welded parts of different sizes.

[0016] 2. By placing a device with low temperature at the welding position, the device absorbs the residual heat, reducing the influence of high temperature on the base metal near the weld, avoiding problems such as grain coarsening and hardness reduction. In addition, the air cushion ring is in the form of a ring, so that the heat stress caused by uneven temperature is reduced by uniform heat dissipation.

[0017] 3. By synchronously shrinking the elastic ring and tightly attaching it to the outside of the welded part, the required welding position of the welded part is wrapped and separated, avoiding the influence of a large amount of heat generated during welding on other parts of the welded part. At the same time, the elastic heat insulation sheet also plays a role in blocking part of the high-temperature solder splashed out.

[0018] 4. When welding two tower cylinders with the same inner diameter and different outer diameters, the angle of the smoothing blade on the tower cylinder with the larger outer diameter does not change, and the angle of the smoothing blade on the other tower cylinder with the smaller outer diameter is deflected downward, thereby playing a role in smoothing the welding points of tower cylinders with different outer diameters.

[0019] 5. When the blade rotates to the bottom, the cleaning liquid stored inside flows out and is discharged outward from the liquid outlet pipe, and is sprayed on the outside of the welded part, thereby playing a role in periodically spraying the cleaning liquid and then using the impurity removal scraper to remove the splashed welding points. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the external structure of the automatic welding equipment for wind turbine tower production.

[0021] Figure 2 The figure is a schematic diagram of the overall structure.

[0022] Figure 3 The figure is a schematic diagram of the structure of the limiting mechanism.

[0023] Figure 4 The figure is a schematic diagram of the axial cross-sectional structure of the limiting mechanism.

[0024] Figure 5 The figure is a schematic diagram of the first cross-sectional structure of the limiting mechanism.

[0025] Figure 6 The figure is a schematic diagram of the second cross-sectional structure of the limiting mechanism.

[0026] Figure 7 The figure is a schematic diagram of the enlarged structure of part of the limiting mechanism.

[0027] Figure 8 The figure is a schematic diagram of the structure of the welding assembly and the driving assembly.

[0028] Figure 9 Structure diagram of the cleaning and scraping mechanism of the present application.

[0029] Figure 10 Structure diagram of the adjusting assembly of the cleaning and scraping mechanism of the present application.

[0030] Figure 11 Structure diagram of the cleaning assembly of the cleaning and scraping mechanism of the present application.

[0031] Figure 12 Structure diagram of the cleaning assembly of the cleaning and scraping mechanism of the present application.

[0032] In the figure: 1, seat rail; 2, sliding table; 3, limiting mechanism; 4, cleaning and scraping mechanism; 5, plugboard; 6, support; 7, welding head; 8, support roller; 9, motor; 31, workpiece to be welded; 32, circular bearing table; 33, hollow rod; 34, annular tube; 35, hollow tube; 36, support shaft frame; 37, central shaft; 38, shaft sleeve; 39, external connecting block; 30, limiting rail; 301, double-head strip; 302, curved plate; 303, elastic protective pad; 304, air cushion ring; 305, No. 1 nested arc ring; 41, square frame body; 42, elastic heat insulation sheet; 43, No. 2 nested arc ring; 44, elastic ring; 45, fixed block; 46, inner sliding rod; 47, embedded rod; 48, nut; 49, threaded rod; 40, No. 1 bearing; 401, top rod; 402, No. 2 bearing; 403, reset spring; 51, connecting shaft; 52, smoothing scraper; 53, connecting sleeve; 54, electric push rod; 55, impurity removing scraper; 56, small motor; 57, layered blade; 58, liquid inlet pipe; 59, liquid outlet pipe; 50, No. 1 guide strip; 501, No. 2 guide strip. DETAILED DESCRIPTION

[0033] Hereinafter, the present application will be further described in conjunction with the drawings and the specific embodiments. It should be noted that, under the premise of no conflict, the following described embodiments or technical features can be combined in any manner to form new embodiments. It is known that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] Please refer to Figures 1 to 12 , the present application provides a technical solution: as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, including seat rail 1, slidingly fitted with sliding table 2 on seat rail 1; The limiting mechanism 3 for clamping and heat insulation treatment of the tower drum is arranged on the sliding table 2; The seat rail 1 is provided with support rollers 8, wherein the support rollers 8 are composed of support seats and rotating rollers, the number of the support rollers 8 is two and they are symmetrically arranged on both sides below the tower drum and are used to drive the tower drum to rotate, the rotating rollers in the support rollers 8 are connected with motors 9 through shaft couplings, and the motors 9 are fixedly installed on the outside of the support roller seats 8; Wherein the number of the motors 9 and the support roller seats 8 is two, and the two motors 9 are controlled by different controllers, because the size and mass of part of the tower drums have a certain deviation, so the purpose of the two motors 9 is to make the two tower drums rotate synchronously; In addition, in order to ensure the synchronous rotation of the symmetrically designed support roller seats 8, the motor needs to be selected as a high-power servo motor, so as to ensure the synchronous rotation of the support roller seats 8 on both sides, in the technical scheme of the present application, how to realize the synchronous rotation of the support roller seats 8 on both sides is a disclosed technical means, for the present application, what needs to be applied is the existing function of synchronous rotation, and how to realize the synchronous rotation is not described here.

[0035] The cleaning mechanism 4 for flattening the welded protruding part and cleaning the spatter welding point is slidably fitted on the seat rail 1; The outside of the seat rail 1 is inserted with an insertion plate 5, the top of the insertion plate 5 is fixedly connected with a support 6, the support 6 is provided with a welding head 7, wherein the welding head 7 is used for welding treatment of the two tower drums.

[0036] The limiting mechanism 3 comprises a to-be-welded part 31 and a circular bearing table 32, wherein the to-be-welded part 31 is the tower drum, the circular bearing table 32 is slidably installed on the outside of the sliding table 2, and the hollow rod 33 is rotatably installed in the inside of the circular bearing table 32; after the device in the to-be-welded part 31 is set, the height of the two to-be-welded parts 31 is adjusted by the sliding table 2, so that the centers of the two to-be-welded parts 31 are at the same height, then the motor 9 is started, so that the rotating roller in the support roller 8 connected with the output end of the motor 9 through the shaft coupling rotates and drives the to-be-welded part 31 to rotate, then the insertion plate 5 is inserted into the inside of the seat rail 1, so that the welding head 7 connected with the support 6 moves towards the part to be welded of the to-be-welded part 31, and finally the welding treatment is realized.

[0037] The outside of the hollow rod 33 is fixedly connected with a ring-shaped pipe 34, one side of the ring-shaped pipe 34 is connected with external inflating equipment, the other side of the ring-shaped pipe 34 is fixedly connected with a hollow pipe 35, wherein the ring-shaped pipe 34 and the hollow pipe 35 are used for gas flow and backflow treatment, and the ring-shaped pipe 34 has elasticity; The bottom of the inner cavity of the hollow rod 33 is fixedly provided with a support shaft frame 36, the inner part of the support shaft frame 36 is rotatably provided with a central shaft 37, and the end of the central shaft 37 away from the support shaft frame 36 is rotatably provided in the inner part of the hollow rod 33; The outer side of the central shaft 37 is fixedly connected with a shaft sleeve 38, the outer side of the shaft sleeve 38 is fixedly connected with an external connecting block 39, and the two ends of the external connecting block 39 are symmetrically slidably matched with the limiting rails 30; The limiting rails 30 are used for limiting the angle of deflection of the central shaft 37; The outer side of the limiting rails 30 is fixedly connected with a double-head strip 301, and the end of the double-head strip 301 away from the limiting rails 30 is fixedly connected to the inner side of the hollow rod 33; the two ends of the external connecting block 39 are slidably matched with the limiting rails 30, and the limiting rails 30 are used for limiting the angle of deflection of the external connecting block 39, so as to avoid the disengagement of the external connecting block 39 from the curved panel 302.

[0038] The surface of the hollow rod 33 is inserted with a curved panel 302, one side of the curved panel 302 with a curved surface is extruded and matched with the external connecting block 39, the side of the curved panel 302 away from the external connecting block 39 is fixedly connected with an elastic protective pad 303, and the elastic protective pad 303 is extruded and matched with the inner wall of the to-be-welded part 31; the to-be-welded part 31 is sleeved on the outer wall of the hollow rod 33 by using an external driving device, then the central shaft 37 is driven to deflect clockwise, at this time, the shaft sleeve 38 fixedly connected to the outer side of the central shaft 37 will deflect clockwise together with the external connecting block 39, and is extruded and matched with the curved part of the curved panel 302, the curved panel 302 subjected to extrusion will pass through the surface of the hollow rod 33 and extend outward, and the other side of the curved panel 302 is fixedly connected with the elastic protective pad 303, so that the elastic protective pad 303 will move outward and extrude the inner wall of the to-be-welded part 31, so as to achieve the purpose of tightly connecting the hollow rod 33 and the to-be-welded part 31 together, and when the inner wall of the to-be-welded part 31 with a large inner diameter size is clamped, the central shaft 37 is again deflected clockwise, so that the curved panel 302 can extend outward by a certain length, and the inner wall of the to-be-welded part 31 with a large size is clamped, thereby achieving the effect that the inner wall of the to-be-welded part 31 with different sizes can be clamped.

[0039] The outer side of the curved panel 302 is inserted with the hollow tube 35, the end of the hollow tube 35 away from the annular tube 34 is fixedly connected with the air cushion ring 304, and the inner side of the air cushion ring 304 is fixedly installed with the first nested arc-shaped ring 305. The outer side of the hollow rod 33 is fixedly connected with the annular tube 34, the annular tube 34 is elastic, one side of the annular tube 34 is connected with the external air pump, the other side of the annular tube 34 is connected with the hollow tube 35, and the end of the hollow tube 35 away from the annular tube 34 is connected with the air cushion ring 304, wherein the annular tube 34, the hollow tube 35 and the air cushion ring 304 are communicated, so that the gas flow with a certain low temperature enters the air cushion ring 304, and the hollow tube 35 is sleeved on the outer side of the curved panel 302, so that the hollow tube 35 moves outward together with the air cushion ring 304 as the curved panel 302 moves outward, wherein the air cushion ring 304 is elastic, and the inner side of the air cushion ring 304 is connected with the first nested arc-shaped ring 305, so that the inner diameter of the air cushion ring 304 increases until the position close to the required welding position of the workpiece to be welded, but the air cushion ring 304 cannot be attached to the required welding position. Therefore, by placing the device with a certain low temperature at the welding position, the device is used to absorb the residual heat, reduce the influence of high temperature on the base metal near the weld, and avoid problems such as coarse grains and hardness reduction. In addition, the air cushion ring 304 is annular, so that the heat is evenly dissipated to reduce the thermal stress caused by uneven temperature.

[0040] As shown in Figure 8 , Figure 9 and Figure 10 , the cleaning mechanism 4 includes a square frame body 41 which is slidably fitted on the seat rail 1, and the inner side of the square frame body 41 is fixedly connected with elastic heat insulation sheets 42, wherein the number of the elastic heat insulation sheets 42 is two and they are symmetrically connected on the upper and lower sides of the inner cavity of the square frame body 41. The end of the elastic heat insulation sheet 42 away from the square frame body 41 is fixedly installed with a second nested arc-shaped ring 43, and the inner wall of the second nested arc-shaped ring 43 is fixedly connected with an elastic ring 44; in addition, before welding, the square frame body 41 needs to be slid along the seat rail 1 and moved towards the welding position, wherein the square frame body 41 is composed of two upper horizontal rods and two vertical rods, and the inner side of the two upper horizontal rods is fixedly connected with the elastic heat insulation sheets 42, and the other end of the elastic heat insulation sheets 42 is connected with the second nested arc-shaped ring 43, wherein the nested arc-shaped ring is composed of an arc-shaped embedded ring nested in an arc-shaped sleeve ring, so as to achieve the purpose of synchronous expansion and contraction in the plane.

[0041] The outer side of the square frame body 41 is fixedly connected with a fixed block 45, the top of the fixed block 45 is fixedly installed with an embedded rod 47, the inner side of the embedded rod 47 is slidably fitted with an inner slide rod 46, and the bottom of the inner slide rod 46 is fixedly connected with the second nested arc-shaped ring 43. The top of the embedded rod 47 is fixedly provided with a nut 48, the inside of the nut 48 is threadedly connected with a threaded rod 49, the bottom of the threaded rod 49 is extruded and adapted with a first bearing 40, and the outside of the first bearing 40 is fixedly connected with the inner slide rod 46; The top end of the threaded rod 49 is fixedly connected with a top rod 401, the outside of the top rod 401 is extruded and adapted with a second bearing 402, the outside of the second bearing 402 is fixedly connected with a reset spring 403, wherein the number of the fixed blocks 45, the inner slide rods 46 to the reset springs 403 is four, and they are arranged on the four rod members of the square frame body 41, and the bottom end of the reset spring 403 is fixedly connected with the nut 48. In addition, the outside of the four rod members of the square frame body 41 is fixedly connected with the fixed block 45, by forward rotating the top rod 401, the threaded rod 49 connected with the bottom end thereof will move downward along the nut 48 spirally, wherein the nut 48 is fixed, thus the reset spring 403 connected with the top rod 401 through the second bearing 402 will be compressed, at the same time, the inner slide rod 46 connected with the threaded rod 49 through the first bearing 40 will move downward along the embedded rod 47, and drive the second nested arc ring 43 to shrink, until the elastic ring 44 connected with the inside thereof will shrink synchronously and tightly adhere to the outside of the to-be-welded piece 31, so as to wrap and separate the side of the required welding position of the to-be-welded piece 31, avoid a large amount of heat generated in the welding process to affect other parts of the to-be-welded piece 31, and the elastic heat insulation sheet 42 also plays a role of blocking part of the high-temperature solder splashed out.

[0042] As shown in Figure 11 and Figure 12 , the outside of the square frame body 41 is fixedly connected with a connecting shaft 51, the outside of the connecting shaft 51 is rotatably provided with a smoothing scraper 52, the outside of the connecting shaft 51 is fixedly connected with a connecting sleeve 53, the bottom of the connecting sleeve 53 is fixedly provided with an electric push rod 54, and the bottom of the electric push rod 54 is fixedly provided with a scavenging scraper 55; wherein the smoothing scraper 52 is clamped and matched with the connecting shaft 51, and the role is to smooth the part of the welding point protruding or uneven, in addition, the smoothing scraper 52 is adjustable in angle, so as to play a role of welding point smoothing treatment for different outer diameter tower drums.

[0043] The small motor 56 is fixedly installed outside the impurity removing scraper 55, the output end of the small motor 56 is connected with the layered blade 57, the layered blade 57 is rotatably installed inside the impurity removing scraper 55, the top end of the impurity removing scraper 55 is sleeved with the liquid inlet pipe 58, and the bottom end is sleeved with the liquid outlet pipe 59; the first guide strip 50 and the second guide strip 501 are tightly attached to the top of the to-be-welded part 31, the two guide strips are plastic, and simultaneously play the role of guiding the cleaning liquid and flowing outwards, avoiding the interference influence on the welding position. The impurity removing scraper 55 is used for cleaning the ring side of the to-be-welded part 31 close to the welding position, the impurity removing scraper 55 can be lifted by the electric push rod 54, then the small motor 56 is started, the layered blade 57 connected with the output end of the small motor 56 rotates clockwise, the top of the layered blade 57 is attached to the liquid inlet pipe 58, therefore, when the opening position of the top of the layered blade 57 is communicated with the liquid inlet pipe 58, the cleaning liquid in the liquid inlet pipe 58 is stored in the blade of the layered blade 57, when the blade rotates to the bottom, the cleaning liquid stored in the blade flows downwards and is discharged outwards from the liquid outlet pipe 59, and is sprayed on the outside of the to-be-welded part 31, thereby playing the role of periodically spraying the cleaning liquid and then using the impurity removing scraper 55 to remove the splashing welding point.

[0044] The first guide strip 50 is fixedly connected to the outside of the bottom of the impurity removing scraper 55, the outside of the first guide strip 50 is connected with the second guide strip 501 through the connecting piece.

[0045] The hollow rod 33 is fixedly connected with the annular pipe 34, and the annular pipe 34 is elastic, and one side of the annular pipe 34 is connected with the external air pump, and the other side of the annular pipe 34 is connected with the hollow pipe 35, and the end of the hollow pipe 35 far from the annular pipe 34 is connected with the air cushion ring 304, wherein the annular pipe 34, the hollow pipe 35 and the air cushion ring 304 are communicated, so that the airflow with a certain low temperature enters the air cushion ring 304, and the hollow pipe 35 is sleeved on the outer side of the curved plate 302, so that the hollow pipe 35 moves outward with the curved plate 302, wherein the air cushion ring 304 is elastic, and the inner side of the air cushion ring 304 is connected with the first nested arc ring 305, so that the inner diameter of the air cushion ring 304 increases until the position close to the welding part of the to-be-welded part 31.

[0046] When the device inside the to-be-welded part 31 is set, the height of the two to-be-welded parts 31 is adjusted by the sliding table 2, so that the centers of the two to-be-welded parts are at the same height, then the motor 9 is started, so that the rotating roller in the support roller 8 connected with the output end through the shaft coupling rotates and drives the to-be-welded part 31 to rotate, then the plug-in plate 5 is inserted into the inside of the seat rail 1, so that the welding head 7 connected with the support 6 moves to the position to be welded of the to-be-welded part 31, and finally the welding process is realized.

[0047] In addition, before welding, the square frame body 41 needs to be slid along the seat rail 1 and moved towards the welding position, wherein the square frame body 41 is composed of two upper and lower horizontal rods and two left and right vertical rods, and the inner sides of the two upper and lower horizontal rods are fixedly connected with elastic heat insulation sheets 42, and the other end of the elastic heat insulation sheets 42 is connected with the second nested arc-shaped ring 43. In addition, the outer sides of the four rod members of the square frame body 41 are fixedly connected with fixing blocks 45, by positively rotating the top rod 401, the threaded rod 49 connected with the bottom end thereof will move downward along the nut 48 in a spiral manner, wherein the nut 48 is fixed, thus the return spring 403 connected with the top rod 401 through the first bearing 402 will be compressed, and at the same time, the inner sliding rod 46 connected with the threaded rod 49 through the first bearing 40 will move downward along the embedded rod 47, and drive the second nested arc-shaped ring 43 to shrink, until the elastic ring 44 connected with the inner side thereof synchronously shrinks and tightly abuts against the outer side of the welding part 31.

[0048] The other side of the top horizontal rod of the square frame body 41 is fixedly connected with a connecting shaft 51, and the outer side of the connecting shaft 51 is installed with a smoothing scraper 52, wherein the smoothing scraper 52 is clamped with the connecting shaft 51, and the smoothing scraper 52 is adjustable in angle. By tightly abutting the first guide strip 50 and the second guide strip 501 against the top of the welding part 31, wherein the two guide strips are plastic, and the impurity removing scraper 55 is used for cleaning the ring side of the welding part 31 close to the welding position, and the impurity removing scraper 55 can be lifted and lowered through the electric push rod 54, then the small motor 56 is started, so that the layered blade 57 connected with the output end thereof will rotate clockwise, wherein the top of the layered blade 57 is abutted with the liquid inlet pipe 58, thus when the position of the opening at the top of the layered blade 57 is communicated with the liquid inlet pipe 58, the cleaning liquid in the liquid inlet pipe 58 will be stored in the blade of the layered blade 57, and when the blade rotates to the bottom, the cleaning liquid stored in the interior will flow downward and be discharged outward from the liquid outlet pipe 59 and sprayed on the outer side of the welding part 31.

[0049] The above embodiment is only a preferred embodiment of the present application, and cannot be used to limit the protection scope of the present application, and those skilled in the art can make various transformations without creative labor based on the above concept, and all the transformations fall within the protection scope of the present application.

Claims

1. Automatic welding equipment for wind turbine tower production, characterized by: include: A seat rail, wherein a sliding platform is slidably adapted on the seat rail; A limiting mechanism for clamping and heat-insulating the tower, wherein the limiting mechanism is arranged on the sliding platform; The seat rail is provided with a support roller, wherein the support roller is composed of a support seat and a rotating roller. There are two support rollers and they are symmetrically arranged on both sides below the tower, and are used to drive the tower to rotate. The rotating roller in the support roller is connected to a motor through a coupling, and the motor is fixedly mounted on the outside of the support roller seat; A scraping mechanism for smoothing protruding weld parts and cleaning spattered weld points, the scraping mechanism being slidably adapted on the seat rail; An inserting plate is inserted into the outer side of the seat rail, a bracket is fixedly connected to the top of the inserting plate, and a welding head is provided on the bracket, wherein the welding head is used to weld the two towers.

2. The automatic welding equipment for wind turbine tower production according to claim 1 is characterized in that: The limiting mechanism includes a part to be welded and a circular bearing platform, wherein the part to be welded is the tower, the circular bearing platform is slidably installed on the outside of the sliding platform, and a hollow rod is rotatably installed inside the circular bearing platform.

3. The automatic welding equipment for producing wind turbine towers according to claim 2 is characterized in that: The outer side of the hollow rod is fixedly connected to an annular tube, one side of the annular tube is connected to an external inflation device, and the other side of the annular tube is fixedly connected to a hollow tube, wherein the annular tube and the hollow tube are both used for gas flow and reflux processing, and the annular tube is elastic.

4. The automatic welding equipment for wind turbine tower production according to claim 3 is characterized in that: A fulcrum is fixedly mounted on the bottom of the inner cavity of the hollow rod, a central shaft is rotatably mounted inside the fulcrum, and one end of the central shaft away from the fulcrum is rotatably mounted inside the hollow rod.

5. The automatic welding equipment for producing wind turbine towers according to claim 4 is characterized in that: The outer side of the central shaft is fixedly connected to a shaft sleeve, the outer side of the shaft sleeve is fixedly connected to an external block, and both ends of the external block are symmetrically slidably adapted to the limit rail; The limit rail is used to limit the angle of deflection of the central axis; The outer side of the limit rail is fixedly connected with a double-headed strip, and one end of the double-headed strip away from the limit rail is fixedly connected to the inner side of the hollow rod.

6. The automatic welding equipment for producing wind turbine towers according to claim 5 is characterized in that: A curved plate is inserted into the surface of the hollow rod, and the curved side of the curved plate is extruded and adapted to the external block. An elastic pad is fixedly connected to the side of the curved plate away from the external block, wherein the elastic pad is extruded and adapted to the inner wall of the workpiece to be welded; The outer side of the curved plate is plugged into the hollow tube. An end of the hollow tube away from the annular tube is fixedly connected to an air cushion ring. A number one nested arc ring is fixedly installed on the inner side of the air cushion ring.

7. The automatic welding equipment for wind turbine tower production according to claim 1 is characterized in that: The scraping mechanism includes a square frame, the square frame is slidably adapted on the seat rail, and an elastic heat insulation sheet is fixedly connected to the inner side of the square frame, wherein the number of the elastic heat insulation sheets is two and they are symmetrically connected to the upper and lower sides of the inner cavity of the square frame; A second nested arc ring is fixedly mounted on one end of the elastic heat insulation sheet away from the square frame, and an elastic ring is fixedly connected to the inner wall of the second nested arc ring.

8. The automatic welding equipment for producing wind turbine towers according to claim 7, characterized in that: The outer side of the square frame is fixedly connected to a fixed block, the top of the fixed block is fixedly installed with an embedded rod, the inner sliding rod is adapted to slide inside the embedded rod, and the bottom of the inner sliding rod is fixedly connected to the second nested arc ring; A nut is fixedly installed on the top of the embedded rod, the internal thread of the nut is connected to the threaded rod, the bottom of the threaded rod is extruded and adapted with a No. 1 bearing, and the outer side of the No. 1 bearing is fixedly connected to the inner sliding rod; The top end of the threaded rod is fixedly connected to a push rod, the outer side of the push rod is extruded and adapted with a No. 2 bearing, the outer side of the No. 2 bearing is fixedly connected to a return spring, and the bottom end of the return spring is fixedly connected to the nut.

9. The automatic welding equipment for producing wind turbine towers according to claim 7, characterized in that: The outer side of the square frame is fixedly connected to a connecting shaft, the outer side of the connecting shaft is rotatably mounted with a smoothing scraper, the outer side of the connecting shaft is fixedly connected to a connecting sleeve, the bottom of the connecting sleeve is fixedly mounted with an electric push rod, and the bottom of the electric push rod is fixedly mounted with a debris removal scraper; A small motor is fixedly mounted on the outside of the scraper, and the output end of the small motor is connected to a layered blade, wherein the layered blade is rotatably mounted inside the scraper. The top end of the scraper is provided with a liquid inlet pipe, and the bottom end is provided with a liquid outlet pipe. The outer side of the bottom of the scraper is fixedly connected to a guide bar No. 1, and the outer side of the guide bar No. 1 is connected to a guide bar No. 2 via a connecting piece.

10. A control method for automatic welding of wind turbine tower production, used for the automatic welding equipment for wind turbine tower production according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: Through the rotation of the central shaft, the sleeve fixedly connected to the outer side of the central shaft will deflect clockwise with the external block, and squeeze and adapt to the curved surface of the curved plate. The other side of the curved plate is fixedly connected to the elastic pad, so the elastic pad will move outward and squeeze the inner wall of the workpiece to be welded, so that the hollow rod and the workpiece to be welded are tightly connected together; Step 2: As the curved plate moves outward, the hollow tube moves outward with the air cushion ring. The air cushion ring has a certain elasticity and its inner side is connected to the nested arc ring No.

1. Therefore, the inner diameter of the air cushion ring will increase until it is close to the part to be welded; Step 3: After the device inside the workpiece to be welded is set, the height of the two workpieces to be welded is adjusted by the sliding table so that the centers of the two are at the same height. Then the motor is started so that the roller inside the support roller connected to its output end through the coupling will rotate and drive the workpiece to be welded to rotate. Then the insert plate is extended into the interior of the seat rail so that the welding head connected to it through the bracket will move toward the required welding part of the workpiece to be welded, and finally the welding process is completed.

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