A welding positioning device for tower and flange

Abstract

The utility model discloses a tower and flange welding positioning device, belonging to the field of welding equipment. It includes a frame, a flange support device and a tower support device; the flange support device includes a pair of flange supports and a flange fixing mechanism, the pair of flange supports are installed on both sides of the frame, and the flange fixing mechanism is used to fix the flange; the tower support device includes a support platform and a pair of tower supports, the support platform is arranged in front of the frame, and the pair of tower supports are installed on both sides of the support platform. The utility model can reduce the welding strength when welding the flange and the tower, quickly and accurately realize the alignment of the tower and the flange, and improve the welding efficiency and welding accuracy.

Description

Technical Field

[0001] The utility model belongs to the field of welding equipment, and more specifically relates to a welding positioning device for a tower barrel and a flange. Background Art

[0002] The tower, also known as the wind turbine tower, is an important component of the wind power generation system. Its main function is to support the wind turbine generator set and absorb the vibration of the unit. The production process of the wind turbine tower includes multiple steps such as cutting with a CNC cutting machine, rolling and forming with a rolling machine, welding, roundness inspection, flange welding, sandblasting, and cost inspection. These steps ensure the quality and performance of the tower, which can effectively support the wind turbine generator set and ensure its stable operation.

[0003] Among them, in the flange welding step, the traditional method is that the worker directly places the welding flange on the ground, then places the tower on the flange, uses a crowbar to pry the tower or hammers the tower to align the position, and then manually welds after the position is aligned. The disadvantages are: the working environment is harsh, and the workers need to climb up to enter the tower when welding the flange and the inner wall of the tower, which is time-consuming and laborious; the alignment process of the welding flange and the tower consumes a lot of labor and is time-consuming.

[0004] In response to the above problems, some equipment that assists the positioning of flanges and towers has appeared on the market, which plays a role in saving manpower and time. For example, the Chinese patent application number is: CN201520531364.2, and the patent document published on November 11, 2015, which discloses a welding platform for a roller and a flange on a wind tower line, including a support platform and a fixture clamp assembly installed on the support platform, and multiple groups of the fixture clamp assemblies are arranged symmetrically relative to the center of the support platform; the fixture clamp assembly includes a first fixture clamp and a second fixture clamp radially arranged relative to the center of the support platform, and the roller and the flange are installed between the first fixture clamp and the second fixture clamp; the upper end of the first fixture clamp is spirally installed with a first screw rod, and the end of the first screw rod contacts the outer wall of the roller; the upper end of the second fixture clamp is spirally installed with a second screw rod, and the end of the second screw rod contacts the inner wall of the roller, and the inner side of the second fixture clamp contacts the inner wall of the flange. This technical solution reduces the labor intensity during flange welding and saves time by designing a welding platform for the tower and the flange.

[0005] Another example is the Chinese patent application number: CN202111167697.8, the patent document with the publication date of December 21, 2021, which discloses a tower flange welding auxiliary centering device, including a semicircular clamping ring, a tower clamping assembly, a flange support assembly and a guide wheel. The two semicircular clamping rings are hinged together to form a complete circle. At least two tower clamping assemblies are arranged on the semicircular clamping ring. The tower clamping assembly includes a threaded sleeve, a screw rod, a bevel gear, a pulley, a synchronous belt and a guide rod. At least two flange support assemblies are arranged next to the tower clamping assembly. The flange support assembly includes a guide rail, a slider, a clamping assembly and a flange through-hole positioning rod. One end of the guide rod is sleeved on the screw rod, and the other end passes through the guide rail and forms a moving pair with the guide rail, and the end of the guide rod is connected to the slider. The synchronous drive of the threaded sleeve to rotate is achieved through the pulley, belt and bevel gear, and then the screw rod achieves synchronous movement, so as to achieve the centering clamping of the tower and reduce the labor intensity during flange welding.

[0006] However, although the above solution can reduce the welding strength when assisting the tower and the flange in welding, it is difficult to quickly and accurately achieve the alignment of the flange and the tower, resulting in that the efficiency of the flange welding is affected. Summary of the invention

[0007] 1. Problems to be solved

[0008] In view of the problem that existing equipment is difficult to achieve fast and accurate alignment of flange and tower when welding, the utility model provides a welding positioning device for tower and flange, which can reduce the welding strength when welding flange and tower, and at the same time quickly and accurately achieve the alignment of tower and flange, thereby improving welding efficiency and welding accuracy.

[0009] 2. Technical solution

[0010] To solve the above problems, the utility model adopts the following technical solutions.

[0011] A tower and flange welding positioning device comprises a frame, a flange supporting device and a tower supporting device; the flange supporting device comprises a pair of flange supporting members and a flange fixing mechanism, the pair of flange supporting members are installed on both sides of the frame, and the flange fixing mechanism is used to fix the flange; the tower supporting device comprises a supporting platform and a pair of tower supporting members, the supporting platform is arranged in front of the frame, and the pair of tower supporting members are installed on both sides of the supporting platform.

[0012] As a further improvement of the technical solution, there are two tower support devices, and a guide rail is arranged in front of the frame; one of the tower support devices is fixedly arranged between the frame and the guide rail, and the other tower support device is slidably installed on the guide rail.

[0013] As a further improvement of the technical solution, a slide groove is provided on the side of the frame, and the flange support is slidably installed on the slide groove.

[0014] As a further improvement of the technical solution, the flange support is rotatably mounted on the connecting plate, and the connecting plate is slidably mounted on the sliding groove.

[0015] As a further improvement of the technical solution, a round rod is fixedly installed on the support platform, and the tower support member is rotatably sleeved on the round rod.

[0016] As a further improvement of the technical solution, the flange fixing mechanism includes a telescopic driving member and a fixing hook, one end of the fixing hook is hinged to the frame, one end of the telescopic driving member is hinged to the frame, and the other end is hinged to the fixing hook.

[0017] As a further improvement of the technical solution, the frame is provided with a lifting guide rail, a lifting plate is slidably mounted on the lifting guide rail, and the telescopic driving member and the fixed hook are mounted on the lifting plate.

[0018] As a further improvement of the technical solution, a middle portion of the support platform is provided with an avoidance groove.

[0019] As a further improvement of the technical solution, a clamping device is fixedly installed in the middle of the frame, and the clamping device is used to clamp the flange and the tower.

[0020] As a further improvement of the technical solution, a horizontal slide rail is provided at the bottom of the rack, and the rack is slidably mounted on the horizontal slide rail.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] (1) The utility model provides a tower and flange welding positioning device, which is provided with a pair of flange supporting members and a pair of tower supporting members that match each other. After the positions of the pair of flange supporting members and the pair of tower supporting members are adjusted, the flange and the tower are placed thereon, so that the automatic alignment of the flange and the tower can be realized quickly and accurately, thereby reducing the welding strength of the flange and the tower and improving the welding efficiency;

[0024] (2) The utility model provides a tower and flange welding positioning device, which can adjust the distance between the two tower support devices according to the length of the tower by setting two tower support devices and sliding one of the tower support devices on the guide rail to adapt to different models of towers;

[0025] (3) The utility model provides a tower and flange welding positioning device, in which the flange support can slide on the slide groove to adjust the position and adapt to flanges of different diameters;

[0026] (4) The utility model provides a tower and flange welding positioning device, in which the flange support and the tower support are both rotatably installed, and can rotate in coordination with the flange and the tower when they rotate, thereby reducing the friction between the flange and the tower and protecting the flange and the tower surface from damage;

[0027] (5) The utility model provides a tower and flange welding positioning device. The flange fixing mechanism can fix the flange through a fixing hook after the flange is placed to prevent the flange from tipping over and ensure the normal progress of the welding work;

[0028] (6) The utility model provides a tower and flange welding positioning device, wherein the clamping device can clamp the flange and the tower separately during flange welding, thereby preventing the flange and the tower from shaking during welding and affecting the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the positioning device with a tower and a flange;

[0030] Figure 2 This is a schematic diagram of the structure of the positioning device with only flange;

[0031] In the figure: 1. frame; 11. horizontal slide rail; 2. flange support device; 21. flange support member; 22. flange fixing mechanism; 221. telescopic drive member; 222. fixing hook; 223. lifting guide rail; 224. lifting plate; 23. slide groove; 24. connecting plate; 3. tower support device; 31. support platform; 32. tower support member; 33. guide rail; 34. round rod; 35. avoidance groove; 4. clamping device. DETAILED DESCRIPTION

[0032] Exemplary embodiments of the present invention are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from the spirit and scope of the present invention. The more detailed description of the embodiments of the present invention below is not intended to limit the scope of the claimed present invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, in order to propose the best way to perform the present invention, and is sufficient to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0033] Example 1

[0034] A tower and flange welding positioning device is used to support and fix the tower and flange when the tower and flange are welded, reduce the welding strength of the tower and flange, and improve the welding efficiency. The specific structure and technical effect are described in detail below.

[0035] like Figure 1 and Figure 2 As shown, the equipment mainly includes a frame 1, a flange supporting device 2 and a tower supporting device 3.

[0036] The rack 1 is a mounting base, and a horizontal slide rail 11 is provided at the bottom thereof. The rack 1 is slidably mounted on the horizontal slide rail 11 , so that the rack 1 can be moved horizontally.

[0037] The flange support device 2 includes a pair of flange support members 21 and a flange fixing mechanism 22. A pair of flange support members 21 are installed on both sides of the frame 1, and the flange fixing mechanism 22 is used to fix the flange. Specifically, the flange fixing mechanism 22 includes a telescopic drive member 221, a fixing hook 222 and a lifting plate 224. A lifting guide rail 223 is provided on the frame 1, and a lifting plate 224 is slidably installed on the lifting guide rail 223. By setting the lifting plate 224 to adjust the height of the flange fixing mechanism 22, the flange fixing mechanism 22 can be adapted to flanges of different sizes. One end of the fixing hook 222 is hinged to the lifting plate 224, one end of the telescopic drive member 221 is hinged to the lifting plate 224, and the other end is hinged to the fixing hook 222.

[0038] In this embodiment, the telescopic driving member 221 adopts a cylinder, and the fixed hook 222 is a hook-shaped structure. The telescopic cylinder can control the fixed hook 222 to rotate along the hinge point between it and the lifting plate 224, thereby clamping and fixing the flange placed on the flange support member 21.

[0039] In addition, a slide groove 23 is provided on the side of the frame 1, a connecting plate 24 is slidably mounted on the slide groove 23, and the flange support 21 is rotatably mounted on the connecting plate 24. The flange support 21 can slide on the slide groove 23 to adjust the position to adapt to flanges of different diameters.

[0040] There are two tower support devices 3, and a single tower support device 3 includes a support platform 31 and a pair of tower support members 32. The support platform 31 is arranged in front of the frame 1, and a pair of tower support members 32 are installed on both sides of the support platform 31. Specifically, a round rod 34 is fixedly installed on the support platform 31, and the tower support member 32 is rotatably sleeved on the round rod 34. In order to better place the tower on the support platform 31, an avoidance groove 35 is provided in the middle of the support platform 31 to provide a placement space for the tower.

[0041] In this embodiment, since the flange support 21 and the tower support 32 are both rotatably installed, they can rotate in coordination with the flange and the tower, reducing the friction between the flange and the tower and protecting the flange and the tower surface from damage.

[0042] A guide rail 33 is provided in front of the frame 1, one of the tower support devices 3 is fixedly provided between the frame 1 and the guide rail 33, and the other tower support device 3 is slidably installed on the guide rail 33. By providing two tower support devices 3 and slidably installing one of the tower support devices 3 on the guide rail 33, the distance between the two tower support devices 3 can be adjusted according to the length of the tower to adapt to different models of towers.

[0043] In addition, a clamping device 4 is fixedly installed in the middle of the frame 1. The clamping device 4 includes a flange clamping device and a tower clamping device, which are used to clamp the flange and the tower respectively. Specifically, a lifting drive mechanism such as an oil cylinder is fixedly installed in the middle of the frame 1. Two telescopic rods are arranged at the bottom of the oil cylinder. The positions of the telescopic rods correspond to the positions of the flange and the tower during welding, and the shapes of the ends of the telescopic rods match the shapes of the flange and the tower. When welding the flange and the tower, the telescopic rod descends to clamp the flange and the tower to prevent the flange and the tower from shaking and affecting the welding accuracy.

[0044] During operation, the positions of a pair of flange supports 21 and a pair of tower supports 32 are adjusted so that after the flange and the tower are placed on them, their centers are on the same straight line, that is, the automatic alignment of the flange and the tower is achieved quickly and accurately. Then the frame 1 is moved so that the flange and the tower are close to each other for welding.

[0045] In summary, the tower and flange welding positioning device of this embodiment can reduce the welding strength when welding the flange and the tower, while quickly and accurately realizing the alignment of the tower and the flange, thereby improving the welding efficiency and welding accuracy.

Claims

1. A tower and flange welding positioning device, characterized in that: The invention comprises a frame (1), a flange support device (2) and a tower support device (3); the flange support device (2) comprises a pair of flange support members (21) and a flange fixing mechanism (22); the pair of flange support members (21) are installed on both sides of the frame (1); the flange fixing mechanism (22) is used to fix the flange; the tower support device (3) comprises a support platform (31) and a pair of tower support members (32); the support platform (31) is arranged in front of the frame (1); and the pair of tower support members (32) are installed on both sides of the support platform (31).

2. The tower and flange welding positioning device according to claim 1, characterized in that: The tower support devices (3) have two, and a guide rail (33) is arranged in front of the frame (1); one of the tower support devices (3) is fixedly arranged between the frame (1) and the guide rail (33), and the other tower support device (3) is slidably installed on the guide rail (33).

3. The tower and flange welding positioning device according to claim 2, characterized in that: A slide groove (23) is provided on the side of the frame (1), and the flange support (21) is slidably mounted on the slide groove (23).

4. The tower and flange welding positioning device according to claim 3, characterized in that: The flange support (21) is rotatably mounted on a connecting plate (24), and the connecting plate (24) is slidably mounted on a sliding groove (23).

5. The tower and flange welding positioning device according to claim 4, characterized in that: A round rod (34) is fixedly mounted on the support platform (31), and the tower support member (32) is rotatably sleeved on the round rod (34).

6. The tower and flange welding positioning device according to claim 1, characterized in that: The flange fixing mechanism (22) comprises a telescopic driving member (221) and a fixing hook (222), one end of the fixing hook (222) being hinged to the frame (1), one end of the telescopic driving member (221) being hinged to the frame (1), and the other end being hinged to the fixing hook (222).

7. The tower and flange welding positioning device according to claim 6, characterized in that: The frame (1) is provided with a lifting guide rail (223), a lifting plate (224) is slidably mounted on the lifting guide rail (223), and the telescopic driving member (221) and the fixing hook (222) are mounted on the lifting plate (224).

8. A tower and flange welding positioning device according to any one of claims 1 to 5, characterized in that: The support platform (31) has an avoidance groove (35) in the middle.

9. A tower and flange welding positioning device according to any one of claims 1 to 5, characterized in that: A clamping device (4) is fixedly installed in the middle of the frame (1), and the clamping device (4) is used to clamp the flange and the tower.

10. A tower and flange welding positioning device according to any one of claims 1 to 5, characterized in that: A horizontal slide rail (11) is provided at the bottom of the frame (1), and the frame (1) is slidably mounted on the horizontal slide rail (11).

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