Flange welding fixing mechanism

Abstract

The utility model discloses a flange welding fixing mechanism, and belongs to the field of welding. Comprising a fixing frame, a positioning pin and a fixing piece, a bearing surface for placing a flange and a first abutting surface in contact with the outer wall surface of a pipeline are formed on the fixing frame; the bearing surface is provided with at least two positioning pins; a mounting surface for placing the fixing piece is formed on the fixing frame; a second abutting surface which is in contact with the outer wall surface of the pipeline is formed on the fixing piece; the projection positions of the first abutting face and the second abutting face on a plane perpendicular to the ground are matched. The welding device has the beneficial effects that the positioning pin can limit the flange in the horizontal direction, and the first abutting face formed on the fixing frame and the second abutting face formed on the fixing piece can make contact with the outer wall face of the pipeline, so that the pipeline is arranged on the flange in the vertical direction, workers can conveniently weld the pipeline and the flange, and the welding efficiency is improved. And the problem of cost increase caused by spare part waste due to welding dislocation is solved.

Description

Technical Field

[0001] This application relates to the field of welding, and more specifically, to a flange welding and fixing mechanism. Background Technology

[0002] When welding existing pipes and flanges, due to the lack of suitable fixing tools, employees need to use a ruler to measure the position during the welding process. They need to frequently adjust the position to ensure the welding quality. They also need to support the pipe with one hand and weld with the other, resulting in low welding precision. Welding misalignment leads to waste of spare parts and increases costs. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section, some embodiments of this application provide a flange welding and fixing mechanism. The flange forms a straight hole, and the fixing mechanism includes: a fixing frame, locating pins, and a fixing element. The fixing frame has a bearing surface for placing the flange and a first abutment surface that contacts the outer wall of the pipe. At least two locating pins are provided on the bearing surface. The locating pins match the diameter of the straight hole. The fixing frame forms an mounting surface for placing the fixing element. The fixing element forms a second abutment surface that contacts the outer wall of the pipe. The first abutment surface and the second abutment surface are positioned in a plane perpendicular to the ground. The distance between the first abutment surface and the second abutment surface matches the diameter of the pipe.

[0005] Furthermore, the fastener includes: a fixing plate, a bolt, and a nut; the fixing plate forms the second abutment surface; the mounting surface forms a positioning hole; the fixing plate forms a connecting hole that matches the positioning hole; when the bolt passes through the connecting hole and the positioning hole in sequence and is threadedly connected to the nut, the first abutment surface and the second abutment surface are matched in the projection position on a plane perpendicular to the ground.

[0006] Furthermore, the fastener forms a protrusion; the mounting surface forms a positioning hole that matches the diameter of the protrusion; when the outer wall surface of the protrusion abuts against the inner wall surface of the positioning hole, the first abutting surface and the second abutting surface are positioned in a projection on a plane perpendicular to the ground.

[0007] Furthermore, the fixing frame includes: a support section and a guide section; the support section is in contact with the ground, and the end of the support section facing away from the ground forms the bearing surface; the guide section is located at the middle position of the support section in a direction perpendicular to the ground; the guide section forms the first contact surface and the mounting surface.

[0008] Furthermore, a distance greater than 30cm is formed between the bearing surface and the mounting surface.

[0009] Furthermore, the widths of the first contact surface and the second contact surface are greater than or equal to 1 cm.

[0010] Furthermore, the support section forms a collection groove; the collection groove is used to collect debris generated during the welding process.

[0011] The beneficial effects of this application are as follows: the locating pin can limit the flange in the horizontal direction, and the first abutting surface formed on the fixing bracket and the second abutting surface formed on the fixing member can contact the outer wall surface of the pipe, so that the pipe is set on the flange in the vertical direction, which makes it convenient for employees to weld the pipe and the flange, and will not cause waste of spare parts due to welding misalignment, thus avoiding the problem of increased costs. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0014] In the attached diagram:

[0015] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0016] Figure 2 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the support section, guide section and surrounding parts;

[0017] Figure 3 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first abutting surface, the second abutting surface, and some surrounding parts;

[0018] Figure 4 This is a structural diagram of a part of an embodiment, mainly showing the structure of the mounting surface;

[0019] Figure 5This is a partial exploded view of an embodiment, mainly showing the structure of the protrusion and the positioning hole.

[0020] Figure label:

[0021] 1. Flange; 11. Straight hole; 2. Pipe; 3. Fixing bracket; 31. Support section; 311. Bearing surface; 32. Guide section; 321. First abutment surface; 322. Mounting surface; 3221. Positioning hole; 4. Positioning pin; 5. Fixing component; 51. Fixing plate; 511. Second abutment surface; 512. Connecting hole; 52. Nut; 54. Protrusion. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0025] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Reference Figure 1-4

[0028] Example 1

[0029] A flange 1 welding and fixing mechanism is disclosed. The flange 1 has a straight hole 11, which is used to connect to flanges 1 on other pipes 2, so that the two pipes 2 can communicate with each other. A bolt is provided to pass through the straight holes 11 formed on two flanges 1 in sequence and is fixed by the bolt. The fixing mechanism includes a fixing frame 3, locating pins 4, and fixing elements 5. The fixing frame 3 has a bearing surface 311 for placing the flange 1 and a first abutment surface 321 that contacts the outer wall of the pipe 2. The bearing surface 311 is horizontally arranged to prevent the flange 1 from slipping. At least two locating pins 4 are provided on the bearing surface 311. The diameter of the locating pins 4 matches the diameter of the straight hole 11. The locating pins 4 are fixedly arranged on the bearing surface 311. In this embodiment, it is preferable that the two locating pins 4 are arranged opposite each other so that the flange 1 can be fixed on the bearing surface 311. In other embodiments, the number of locating pins 4 is the same as the number of straight holes 11 formed on the flange 1. Since the positions of the straight holes 11 formed on flanges 1 of different diameters are also different, in other embodiments, blind grooves matching the size of the straight holes 11 are formed on the bearing surface 311. The blind grooves are used to accommodate the locating pins 4, aligning them with the straight holes 11 on the flanges 1 to fix the flanges 1. Multiple blind grooves are provided on the bearing surface 311 according to the positions of the straight holes 11 on the flanges 1. Some flanges 1 with larger diameters can also be placed on the bearing surface 311, and the positions of the straight holes 11 formed on the flanges 1 correspond to the positions of the blind grooves, so that the locating pins 4 can pass through the straight holes 11 and be placed in the blind grooves to fix the flanges 1. The fixing bracket 3 forms a mounting surface 322 for placing the fixing member 5. The fixing member 5 forms a second abutment surface 511 that contacts the outer wall surface of the pipe 2. The first abutment surface 321 and the second abutment surface 511 are matched in projection position on a plane perpendicular to the ground. The distance between the first contact surface 321 and the second contact surface 511 is matched with the diameter of the pipe 2, which allows the pipe 2 to be fixed on the fixing bracket 3. The pipe 2 is placed above the end face of the flange 1 in a direction perpendicular to the ground, and one end of the pipe 2 is in contact with the end face of the flange 1. This facilitates the welding of the pipe 2 and the flange 1 by employees and avoids the problem of wasting spare parts and increasing costs due to welding misalignment.

[0030] Specifically, the fastener 5 includes a fixing plate 51, bolts, and nuts 52. The fixing plate 51 forms a second abutment surface 511. The mounting surface 322 forms a positioning hole 3221. The fixing plate 51 forms a connecting hole 512 that matches the positioning hole 3221. When the bolt passes through the connecting hole 512 and the positioning hole 3221 in sequence and is threaded to the nut 52, the first abutment surface 321 and the second abutment surface 511 are aligned in a projection position on a plane perpendicular to the ground. In this embodiment, the fixing plate 51 is fixed to the mounting surface 322 by bolts and nuts 52, which has a simple structure and is easy for operators to operate.

[0031] Specifically, the mounting bracket 3 includes a support section 31 and a guide section 32. The support section 31 is in contact with the ground, and the end of the support section 31 facing away from the ground forms a bearing surface 311. The guide section 32 is located in the middle of the support section 31 along a direction perpendicular to the ground. The guide section 32 forms a first contact surface 321 and a mounting surface 322. The placement of the guide section 32 in the middle of the support section 31 along a direction perpendicular to the ground allows for greater stability when the pipe 2 and flange 1 are placed on the mounting bracket. If the guide section 32 were located at the end of the support section 31, the mounting bracket 3 might tilt when the pipe 2 and flange 1 are placed on it, eventually causing the mounting bracket to fall to the ground, which would be detrimental to the welding of the pipe 2 and flange 1 by the workers.

[0032] Specifically, a gap of more than 30cm is formed between the bearing surface 311 and the mounting surface 322. When workers are welding the pipe 2 and the flange 1, if the distance between the bearing surface 311 and the mounting surface 322 is too close, that is, if the distance between the mounting plate and the support section 31 is too close, then the workers will not have enough space to perform welding operations. Therefore, in this embodiment, a gap of more than 30cm is set between the bearing surface 311 and the mounting surface 322 so that workers have enough operating space to weld and fix the pipe 2 and the flange 1.

[0033] Specifically, the width of the first contact surface 321 and the second contact surface 511 is greater than or equal to 1 cm, so that when the pipe 2 is placed between the first contact surface 321 and the second contact surface 511, the contact area between the first contact surface 321 and the second contact surface 511 and the outer wall surface of the pipe 2 is larger, so that the mounting bracket and the fixing plate 51 can effectively fix the pipe body of the pipe 2.

[0034] Specifically, the support section 31 forms a collection groove for collecting debris generated during the welding process. In this embodiment, both the guide section 32 and the support section 31 have U-shaped cross-sections to reduce the overall weight of the fixing mechanism, making it easier for workers to carry or move.

[0035] Reference Figure 5

[0036] Example 2

[0037] The difference from Embodiment 1 is that the fastener 5 forms a protrusion 54. The protrusion 54 is a block structure. The fastener 5 is a plate structure. The mounting surface 322 forms a positioning hole 3221 that matches the diameter of the protrusion 54. When the outer wall surface of the protrusion 54 abuts against the inner wall surface of the positioning hole 3221, the first abutment surface 321 and the second abutment surface 511 are aligned in a projection position on a plane perpendicular to the ground. The protrusion 54 can be directly inserted into the positioning hole 3221 formed by the mounting surface 322 to achieve quick installation of the fastener 5. In other embodiments, the protrusion 54 may be a rod-shaped structure or a star-shaped structure.

[0038] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A flange welding fixing mechanism characterized by, The flange forms a straight hole, and the fixing mechanism includes: a fixing bracket, a locating pin, and a fixing element; The mounting bracket has a bearing surface for placing the flange and a first contact surface that contacts the outer wall of the pipe; at least two positioning pins are provided on the bearing surface, and the positioning pins match the diameter of the straight hole; The mounting bracket forms an installation surface for placing the fixing member; the fixing member forms a second abutment surface that contacts the outer wall of the pipe; the projection positions of the first abutment surface and the second abutment surface match on a plane perpendicular to the ground; the distance between the first abutment surface and the second abutment surface matches the diameter of the pipe.

2. The flange welding and fixing mechanism according to claim 1, characterized in that: The fasteners include: a fixing plate, bolts, and nuts; The fixing plate forms the second abutment surface; the mounting surface forms a positioning hole; the fixing plate forms a connecting hole that matches the positioning hole; when the bolt passes through the connecting hole and the positioning hole in sequence and is threaded to the nut, the first abutment surface and the second abutment surface are matched in the projection position on a plane perpendicular to the ground.

3. The flange welding and fixing mechanism according to claim 1, characterized in that: The fastener forms a protrusion; The mounting surface forms a positioning hole that matches the diameter of the protrusion; when the outer wall surface of the protrusion abuts against the inner wall surface of the positioning hole, the first abutting surface and the second abutting surface are positioned in a projection on a plane perpendicular to the ground.

4. The flange welding and fixing mechanism according to claim 1, characterized in that: The fixing frame includes: a support section and a guide section; The support section is in contact with the ground, and the end of the support section away from the ground forms the bearing surface; the guide section is located in the middle of the support section along a direction perpendicular to the ground; the guide section forms the first contact surface and the mounting surface.

5. The flange welding and fixing mechanism according to claim 1, 2, 3, or 4, characterized in that: A gap greater than 30cm is formed between the bearing surface and the mounting surface.

6. The flange welding and fixing mechanism according to claim 5, characterized in that: The widths of the first contact surface and the second contact surface are greater than or equal to 1 cm.

7. The flange welding and fixing mechanism according to claim 4, characterized in that: The support section forms a collection groove; the collection groove is used to collect debris generated during the welding process.

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