Weld joint structure for exposed groove on outer side of flange

Abstract

The utility model discloses a flange outer side exposed groove welding seam structure. A flange outer side exposed groove is formed in the outer side of the contact face of a non-square polygonal giant column flange and a non-square polygonal giant column web. A web outer side welding groove is formed in the outer side of the contact face of the non-square polygonal giant column web and the non-square polygonal giant column flange, and a web inner side welding groove is formed in the inner side of the contact face of the non-square polygonal giant column web and the non-square polygonal giant column flange. A flange inner side welding groove is formed in the inner side of the contact face of the non-square polygonal giant column flange and the non-square polygonal giant column web. Groove machining is carried out in a machining mode, and edges, groove angles and planeness are guaranteed; by changing the groove form and the groove position, welding deformation is reduced, and meanwhile the workload of subsequent weld reinforcement milling is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure welding, and particularly relates to an exposed groove weld structure on the outer side of a flange. Background Art

[0002] The exposed steel structure has a simple and generous appearance and smooth lines. These structures not only carry the functional loads of the building, but also are key elements of the building's appearance performance and design language.

[0003] For some support roof steel columns in airport projects, octagonal to dodecagonal cross-sections are adopted. For such non-square polygonal giant columns, the existing conventional processing and manufacturing method is to open an external groove at the corners and weld on the outside of the component. After welding, the edges are smooth transition welds. The grooves at the edges are processed by gas cutting, welded on the outside of the component, and the weld reinforcement is retained after welding, which cannot achieve the sharp-edged visual effect; the disadvantage of the existing processing and manufacturing method is that the grooves are processed by gas cutting, which cannot meet the visual requirements of the exposed steel structure, and the allowable angular deviation of the gas-cut groove is ±5°, which cannot meet the flatness requirements. At the same time, various gas cutting defects are likely to occur during the gas cutting process, and subsequent grinding and trimming are relatively cumbersome; when the weld reinforcement meets the specification requirements after welding with the existing processing and manufacturing method, no grinding treatment is carried out, which also cannot meet the visual requirements. Therefore, we introduce a new exposed groove weld structure on the outer side of the flange. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an exposed groove weld structure on the outer side of a flange, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The exposed groove weld structure on the outer side of the flange includes the flange of a non-square polygonal giant column and the web of a non-square polygonal giant column. There are multiple non-square polygonal giant column flanges and multiple non-square polygonal giant column webs. An exposed groove on the outer side of the flange is arranged on the outer side of the contact surface between the non-square polygonal giant column flange and the non-square polygonal giant column web. A welding groove on the outer side of the web is arranged on the outer side of the contact surface between the non-square polygonal giant column web and the non-square polygonal giant column flange. A welding groove on the inner side of the web is arranged on the inner side of the contact surface between the non-square polygonal giant column web and the non-square polygonal giant column flange. A welding groove on the inner side of the flange is arranged on the inner side of the contact surface between the non-square polygonal giant column flange and the non-square polygonal giant column web.

[0007] Preferably, the non-square polygonal giant column flanges and the non-square polygonal giant column webs are arranged in an alternating manner.

[0008] Preferably, the included angle between the intersecting inner sides of the non-square polygonal mega-column flange and the non-square polygonal mega-column web is 135°.

[0009] Preferably, gas shielded welding is used to weld the non-square polygonal mega-column flange and the non-square polygonal mega-column web from both the inside and outside of the member.

[0010] By adopting the above technical solution: welding deformation is reduced, and at the same time, the workload of subsequent milling of the weld reinforcement is also reduced.

[0011] Preferably, the exposed groove on the outer side of the flange is machined.

[0012] By adopting the above technical solution: for the exposed groove surface, machining is used for groove processing to ensure the edge, groove angle and flatness.

[0013] Preferably, the welding groove on the outer side of the web, the welding groove on the inner side of the web, and the welding groove on the inner side of the flange are all grooved by a semi-automatic flame cutting machine.

[0014] By adopting the above technical solution: for the welding groove surface, gas cutting is used for groove processing, which meets the welding requirements and saves costs at the same time.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. For the exposed groove surface, machining is used for groove processing to ensure the edge, groove angle and flatness; for the welding groove surface, gas cutting is used for groove processing, which meets the welding requirements and saves costs at the same time.

[0017] 2. By changing the groove form and groove position, the original external welding is adjusted to welding from both the inside and outside, reducing welding deformation, and at the same time, the workload of subsequent milling of the weld reinforcement is also reduced. For the weld reinforcement, a weld reinforcement milling machine is used to mill it flat to meet the flatness and appearance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the weld structure of the exposed groove on the outer side of the flange of the utility model;

[0019] Figure 2 It is a schematic diagram of the weld structure of the weld structure of the exposed groove on the outer side of the flange of the utility model;

[0020] Figure 3 It is an enlarged schematic diagram of the structure between the flange and the web of the weld structure of the exposed groove on the outer side of the flange of the utility model.

[0021] In the figure: 1. Flange of non-square polygon mega-column; 2. Web of non-square polygon mega-column; 3. Exposed groove on the outer side of the flange; 4. Welding groove on the outer side of the web; 5. Welding groove on the inner side of the web; 6. Welding groove on the inner side of the flange. Detailed implementation manners

[0022] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0023] Please refer to Figures 1 - 3 , the present utility model provides a technical solution:

[0024] The weld structure of the exposed groove on the outer side of the flange includes the flange 1 of the non-square polygon mega-column and the web 2 of the non-square polygon mega-column. There are multiple flanges 1 of the non-square polygon mega-column and multiple webs 2 of the non-square polygon mega-column. An exposed groove 3 on the outer side of the flange is arranged on the outer side of the contact surface between the flange 1 of the non-square polygon mega-column and the web 2 of the non-square polygon mega-column. A welding groove 4 on the outer side of the web is arranged on the outer side of the contact surface between the web 2 of the non-square polygon mega-column and the flange 1 of the non-square polygon mega-column. A welding groove 5 on the inner side of the web is arranged on the inner side of the contact surface between the web 2 of the non-square polygon mega-column and the flange 1 of the non-square polygon mega-column. A welding groove 6 on the inner side of the flange is arranged on the inner side of the contact surface between the flange 1 of the non-square polygon mega-column and the web 2 of the non-square polygon mega-column.

[0025] In this embodiment, the flanges 1 of the non-square polygon mega-column and the webs 2 of the non-square polygon mega-column are arranged in an alternating manner. The inner included angle formed by the intersection of the flanges 1 of the non-square polygon mega-column and the webs 2 of the non-square polygon mega-column is 135°. Gas shielded welding is used to weld between the flanges 1 of the non-square polygon mega-column and the webs 2 of the non-square polygon mega-column from both the inside and outside of the component.

[0026] Through the above scheme: By changing the groove form and groove position, the original external welding is adjusted to welding from both the inside and outside, reducing welding deformation. At the same time, the workload of subsequent milling of the weld reinforcement is also reduced. For the weld reinforcement, a weld reinforcement milling machine is used to mill it flat to meet the requirements of flatness and appearance.

[0027] In this embodiment, the exposed groove 3 on the outer side of the flange is machined, and the welding grooves 4 on the outer side of the web, the welding grooves 5 on the inner side of the web, and the welding grooves 6 on the inner side of the flange are all grooved by a semi-automatic flame cutting machine.

[0028] Through the above scheme: For the exposed groove surface, machining is used for groove processing to ensure the edge, groove angle and flatness; for the welding groove surface, gas cutting is used for groove processing to save costs while meeting welding requirements.

[0029] It should be noted that the present utility model is a structure of exposed groove weld on the outer side of the flange. The specific processing and manufacturing method has the following technological process: First, use flame heating in cooperation with a press to flatten the steel plate; Second, use computer nesting and a numerical control flame cutting machine for cutting and blanking; Third, the exposed groove 3 on the outer side of the flange is machined, and the welding grooves 4 on the outer side of the web, the welding grooves 5 on the inner side of the web, and the welding grooves 6 on the inner side of the flange are grooved by a semi-automatic flame cutting machine; Fourth, use an external tooling jig for component assembly; Fifth, use gas shielded welding to weld from both the inside and outside of the component; Sixth, use a weld reinforcement milling machine to mill the external weld reinforcement flat; Seventh, use ultrasonic flaw detection technology to detect the internal quality of the weld, use a tape measure, a square, a straightedge, etc. for component size acceptance, and use visual inspection for appearance acceptance; Eighth, use manual sandblasting for rust removal and high-pressure airless spraying for painting; For the entire weld structure, for the exposed groove surface, machining is used for groove processing to ensure the edge, groove angle, and flatness; For the welding groove surface, gas cutting is used for groove processing to save costs while meeting the welding requirements. By changing the groove form and groove position, the original external welding is adjusted to welding from both the inside and outside, reducing welding deformation and also reducing the workload of subsequent weld reinforcement milling. For the weld reinforcement, a weld reinforcement milling machine is used to mill it flat to meet the flatness and visual requirements.

[0030] The above has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. Exposed groove weld structure on the outer side of the flange, comprising a non-square polygonal mega-column flange (1) and a non-square polygonal mega-column web (2), characterized in that: A plurality of non-square polygon mega-column flanges (1) and non-square polygon mega-column webs (2) are provided. An exposed groove (3) on the outer side of the contact surface between the non-square polygon mega-column flange (1) and the non-square polygon mega-column web (2) is provided. A welding groove (4) on the outer side of the web is provided on the outer side of the contact surface between the non-square polygon mega-column web (2) and the non-square polygon mega-column flange (1). A welding groove (5) on the inner side of the web is provided on the inner side of the contact surface between the non-square polygon mega-column web (2) and the non-square polygon mega-column flange (1). A welding groove (6) on the inner side of the flange is provided on the inner side of the contact surface between the non-square polygon mega-column flange (1) and the non-square polygon mega-column web (2).

2. The fillet weld structure with the outside of the flange exposed according to claim 1, wherein: The non-square polygon mega-column flanges (1) and the non-square polygon mega-column webs (2) are distributed in an interlaced manner.

3. The fillet weld structure with exposed groove on the outer side of the flange according to claim 1, characterized in that: The inner included angle formed by the intersection of the non-square polygon mega-column flanges (1) and the non-square polygon mega-column webs (2) is 135°.

4. The exposed groove weld structure on the outer side of the flange according to claim 1, wherein: Gas shielded welding is used to weld between the non-square polygon mega-column flange (1) and the non-square polygon mega-column web (2) from both the inside and outside of the member.

5. The exposed groove weld structure on the outer side of the flange according to claim 1, characterized in that: The exposed groove (3) on the outer side of the flange is machined.

6. The exposed groove weld structure on the outer side of the flange according to claim 1, characterized in that: The welding grooves (4) on the outer side of the web, the welding grooves (5) on the inner side of the web, and the welding grooves (6) on the inner side of the flange are all grooved by a semi-automatic flame cutting machine.

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