Flange welding device

Abstract

The flange welding device particularly relates to the technical field of flange welding and comprises a workbench, telescopic rods are fixedly connected to the left side and the right side of the upper surface of the workbench, supporting rods are fixedly connected to the upper ends of the two telescopic rods, and positioning assemblies are rotationally connected to the interiors of the middles of the supporting rods. A positioning assembly is fixedly connected to the middle of the upper surface of the workbench, a clamping assembly is fixedly connected to the middle of the upper surface of the workbench, and supporting legs are fixedly connected to the left side and the right side of the lower surface of the workbench. And the situation that the flange or the pipe moves due to external force during welding and consequently the welding position deviates is prevented, the flange and the pipe can be rotated during welding after the flange and the pipe are positioned through the arranged clamping assembly, the working efficiency is improved, and welding is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flange welding, in particular to a flange welding device. Background Art

[0002] A flange is a component for connecting pipelines to each other. Flanges are often used in pipeline connections, and it is necessary to weld a flange to the outer end of a pipe to connect it to an external pipeline.

[0003] When welding a flange, it is necessary to align the center position of the flange with the central axis of the pipeline. Manual welding requires cooperation with other operators to align the flange and the pipe by hand for welding. However, this method cannot ensure the welding stability, and ordinary fixing devices cannot rotate after fixing the flange or the pipeline, resulting in troublesome welding. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a flange welding device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A flange welding device, including a workbench, both left and right sides of the upper surface of the workbench are fixedly connected with telescopic rods, both upper ends of the two telescopic rods are fixedly connected with support rods, a positioning component is rotatably connected inside the middle of the support rods, a clamping component is fixedly connected to the middle of the upper surface of the workbench, and both left and right sides of the lower surface of the workbench are fixedly connected with support legs.

[0006] Preferably, the positioning component includes a rotating frame I, four square sliding grooves are circularly arranged on the surface of the rotating frame I, sliding blocks I are slidably connected inside the four square sliding grooves, a connecting rod is fixedly connected to the lower surface of the sliding block I, a rotating rod is rotatably connected to the middle of the surface of the connecting rod, and a positioning block is fixedly connected to the lower end of the rotating rod.

[0007] Preferably, a sliding rod is movably connected to the middle of the rotating frame I, a handle is fixedly connected to the upper end of the sliding rod, a fixed block is fixedly connected to the lower part of the surface of the sliding rod, four rotating frames II are fixedly connected to the surface of the fixed block in a circular array, and the four rotating frames II are rotatably connected to the end of the rotating rod far from the connecting rod.

[0008] Preferably, a fixed ring is fixedly connected to the middle of the upper surface of the rotating frame I, a fastening ring is fixedly connected to the upper end of the fixed ring, fastening bolts are threadedly connected to both ends of the fastening ring, and both the fixed ring and the fastening ring are slidably connected to the sliding rod.

[0009] Preferably, the clamping assembly includes a motor, the output end of the motor is fixedly connected with an adjusting block, a plurality of arc-shaped holes penetrating through the upper and lower surfaces are formed on the surface of the adjusting block in a circular array, a second sliding block is rotatably connected inside each of the plurality of arc-shaped holes, a telescopic frame is fixedly connected to the lower end of the second sliding block, and a fixed frame is slidably connected below the telescopic frame.

[0010] Preferably, a sliding groove is formed at the rear end of the telescopic frame, a limiting rod is fixedly connected inside the sliding groove, a buffer spring is sleeved on the surface of the limiting rod, and a sliding frame is slidably connected to one side of the surface of the limiting rod close to the second sliding block.

[0011] Preferably, a third rotating frame is fixedly connected to both the upper and lower sides of the surface of the sliding frame, and a rotating wheel is rotatably connected to one side where the two third rotating frames are close to each other.

[0012] Preferably, a rotating column is fixedly connected to the middle of the upper surface of the adjusting block, a rotating block is rotatably connected inside the rotating column, and a placing plate is fixedly connected to the upper end of the rotating block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model can fix the flange and the pipe through the cooperation of the positioning assembly and the clamping assembly and ensure that the central axes of the flange and the pipe are on the same straight line, so that the welding effect is better.

[0015] 2. The clamping assembly of the present utility model can rotate the flange and the pipe during welding after positioning the flange and the pipe, which is convenient for welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the positioning assembly of the present utility model;

[0018] Figure 3 is an enlarged schematic diagram of the structure at A of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the clamping assembly of the present utility model;

[0020] Figure 5 is a schematic diagram of the structure of the clamping assembly of the present utility model.

[0021] In the figure: 1, workbench; 2, telescopic rod; 3, support rod; 4, positioning component; 5, clamping component; 6, support leg; 401, first rotating frame; 402, square sliding groove; 403, first sliding block; 404, connecting rod; 405, rotating rod; 406, positioning block; 407, sliding rod; 408, handle; 409, fixing ring; 410, fastening ring; 411, fastening bolt; 412, fixing block; 413, second rotating frame; 501, motor; 502, adjusting block; 503, arc-shaped hole; 504, second sliding block; 505, telescopic frame; 506, limiting rod; 507, buffer spring; 508, sliding frame; 509, third rotating frame; 510, rotating wheel; 511, fixing frame; 512, rotating column; 513, rotating block; 514, placing plate; 515, sliding groove. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , the present invention provides a technical solution: a flange welding device, including a workbench 1. Telescopic rods 2 are fixedly connected to both the left and right sides of the upper surface of the workbench 1. Support rods 3 are fixedly connected to the upper ends of the two telescopic rods. A positioning component 4 is rotatably connected to the middle inside of the support rod 3. A clamping component 5 is fixedly connected to the middle of the upper surface of the workbench 1. Support legs 6 are fixedly connected to both the left and right sides of the lower surface of the workbench 1.

[0024] Through the mutual cooperation of the provided positioning component 4 and clamping component 5, the flange and the pipe can be fixed and it is ensured that the central axes of the flange and the pipe are on the same straight line. Through the provided clamping component 5, after positioning the flange and the pipe, the flange and the pipe can be rotated during welding, which is convenient for welding.

[0025] Please refer to Figure 2 , Figure 3 , the positioning component 4 includes a first rotating frame 401. Four square sliding grooves 402 are circularly arranged on the surface of the first rotating frame 401. First sliding blocks 403 are slidably connected to the interiors of the four square sliding grooves 402. A connecting rod 404 is fixedly connected to the lower surface of the first sliding block 403. A rotating rod 405 is rotatably connected to the middle of the surface of the connecting rod 404. A positioning block 406 is fixedly connected to the lower end of the rotating rod 405.

[0026] A sliding rod 407 is movably connected to the middle of the first rotating frame 401. The upper end of the sliding rod 407 is fixedly connected to a handle 408. Below the surface of the sliding rod 407, a fixed block 412 is fixedly connected. On the surface of the fixed block 412, four second rotating frames 413 are fixedly connected in a circular array. All four second rotating frames 413 are rotatably connected to one end of the rotating rod 405 away from the connecting rod 404.

[0027] In the middle of the upper surface of the first rotating frame 401, a fixed ring 409 is fixedly connected. The upper end of the fixed ring 409 is fixedly connected to a fastening ring 410. Both ends of the fastening ring 410 are threadedly connected with fastening bolts 411. Both the fixed ring 409 and the fastening ring 410 are slidably connected to the sliding rod 407.

[0028] When using this device, by pulling up the handle 408, the sliding rod 407 is driven to move upward. The fixed block 412 below is driven by the sliding rod 407 to move, and then the second rotating frame 413 is driven to move. The second rotating frame 413 drives the rotating rod 405 to expand, and then the connecting rod 404 is driven to expand. The positioning block 406 below is driven by the connecting rod 404. Then, by rotating the fastening bolt 411, the fastening ring fixes the sliding rod 407, achieving the purpose of positioning the pipeline from the inside of the pipeline.

[0029] Please refer to Figure 4 、 Figure 5 The clamping assembly 5 includes a motor 501. The output end of the motor 501 is fixedly connected to an adjusting block 502. A number of arc-shaped holes 503 penetrating the upper and lower surfaces are formed in a circular array on the surface of the adjusting block 502. A second sliding block 504 is rotatably connected inside each of the number of arc-shaped holes 503. The lower end of the second sliding block 504 is fixedly connected to a telescopic frame 505. The telescopic frame 505 is slidably connected below to a fixed frame 511.

[0030] A sliding groove 515 is formed at the rear end of the telescopic frame 505. A limiting rod 506 is fixedly connected inside the sliding groove 515. A buffer spring 507 is sleeved on the surface of the limiting rod 506. A sliding frame 508 is slidably connected to one side of the surface of the limiting rod 506 close to the second sliding block 504.

[0031] On the upper and lower sides of the surface of the sliding frame 508, third rotating frames 509 are fixedly connected. A rotating wheel 510 is rotatably connected to the side where the two third rotating frames 509 are close to each other.

[0032] In the middle of the upper surface of the adjusting block 502, a rotating column 512 is fixedly connected. A rotating block 513 is rotatably connected inside the rotating column 512. The upper end of the rotating block 513 is fixedly connected to a placement plate 514.

[0033] When using this device, first place the flange above the placement plate 514, then drive the adjustment block 502 to rotate through the motor 501, thereby causing the second sliding block 504 to move. The second sliding block 504 drives the telescopic frame 505 below to contract or expand, and drives the sliding frame 508 above to contract or expand, thereby driving the rotating wheel 510 to clamp the flange, moving the flange to the middle of the placement plate 514. I have set the limit rod 506 and the buffer spring 507, which can prevent the large force generated between the rotating wheel 510 and the flange from damaging the flange and this device when clamping the flange. Through the rotating column 512 and the rotating block 513, the flange can also be rotated after the flange is fixed.

[0034] Working principle: When using this device, first place the flange above the placement plate 514, then drive the adjustment block 502 to rotate through the motor 501, thereby causing the second sliding block 504 to move. The second sliding block 504 drives the telescopic frame 505 below to contract or expand, and drives the sliding frame 508 above to contract or expand, thereby driving the rotating wheel 510 to clamp the flange, moving the flange to the middle of the placement plate 514. I have set the limit rod 506 and the buffer spring 507, which can prevent the large force generated between the rotating wheel 510 and the flange from damaging the flange and this device when clamping the flange. Then place the pipe above the flange, lower the telescopic rod 2 so that the positioning block 406 enters the interior of the pipe, and then drive the sliding rod 407 to move upward by pulling up the handle 408. The sliding rod 407 drives the fixed block 412 below to move, thereby driving the second rotating frame 413 to move. The second rotating frame 413 drives the rotating rod 405 to expand, thereby driving the connecting rod 404 to expand. The connecting rod 404 drives the positioning block 406 below, and then rotate the fastening bolt 411 to fix the fastening ring to the sliding rod 407, achieving the purpose of positioning the pipe from the interior of the pipe. During welding, due to the rotatable placement plate 514, the rotating wheel 510 and the rotatable positioning assembly 4, the pipe can be rotated, thereby driving the flange to rotate so that the welding work can be completed by one person.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange welding device, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to telescopic rods (2) on both sides, and the upper ends of the two telescopic rods are fixedly connected to support rods (3). The middle of the support rods (3) is rotatably connected to a positioning assembly (4). The middle of the upper surface of the workbench (1) is fixedly connected to a clamping assembly (5). The lower surface of the workbench (1) is fixedly connected to support legs (6) on both sides.

2. A flange welding device according to claim 1, characterized in that: The positioning assembly (4) comprises a rotating frame (401), the surface of the rotating frame (401) is provided with four square slide grooves (402) in a circular array, the insides of the four square slide grooves (402) are all slidably connected to a sliding block (403), the lower surface of the sliding block (403) is fixedly connected to a connecting rod (404), the middle part of the surface of the connecting rod (404) is rotatably connected to a rotating rod (405), and the lower end of the rotating rod (405) is fixedly connected to a positioning block (406).

3. A flange welding device according to claim 2, characterized in that: A sliding rod (407) is movably connected to the middle of the rotating frame 1 (401), a handle (408) is fixedly connected to the upper end of the sliding rod (407), a fixed block (412) is fixedly connected below the surface of the sliding rod (407), and four rotating frames 2 (413) are fixedly connected in a circular array on the surface of the fixed block (412), and the four rotating frames 2 (413) are all rotatably connected to one end of the rotating rod (405) away from the connecting rod (404).

4. A flange welding device according to claim 2, characterized in that: A fixing ring (409) is fixedly connected to the middle of the upper surface of the rotating frame (401), a fastening ring (410) is fixedly connected to the upper end of the fixing ring (409), fastening bolts (411) are threadedly connected to both ends of the fastening ring (410), and the fixing ring (409) and the fastening ring (410) are both slidably connected to the sliding rod (407).

5. A flange welding device according to claim 1, characterized in that: The clamping assembly (5) comprises a motor (501), the output end of the motor (501) is fixedly connected to an adjusting block (502), the surface of the adjusting block (502) is provided with a plurality of circular array arc holes (503) penetrating the upper and lower surfaces, the interiors of the plurality of arc holes (503) are rotatably connected to a second sliding block (504), the lower end of the second sliding block (504) is fixedly connected to a telescopic frame (505), and a fixed frame (511) is slidably connected below the telescopic frame (505).

6. A flange welding device according to claim 5, characterized in that: The rear end of the telescopic frame (505) is provided with a sliding groove (515), the interior of the sliding groove (515) is fixedly connected with a limiting rod (506), the surface of the limiting rod (506) is sleeved with a buffer spring (507), and the surface of the limiting rod (506) is slidably connected with a sliding frame (508) on one side close to the sliding block 2 (504).

7. A flange welding device according to claim 6, characterized in that: The upper and lower sides of the surface of the sliding frame (508) are fixedly connected to rotating frames three (509), and the sides of the two rotating frames three (509) close to each other are rotatably connected to rotating wheels (510).

8. A flange welding device according to claim 5, characterized in that: A rotating column (512) is fixedly connected to the middle of the upper surface of the adjustment block (502), a rotating block (513) is rotatably connected inside the rotating column (512), and a placement plate (514) is fixedly connected to the upper end of the rotating block (513).

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