Pipe and flange butt welding seam aligning and fixing tool
By designing the counter-end fixing tooling for pipe and flange butt welding welds, and using longitudinal angle steel fixing parts and adjustment screws, the problem of difficult interface alignment during welding is solved, and the welding quality and production efficiency are improved.
Patent Information
- Application Number
- CN202421807426.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-29
AI Technical Summary
During the welding process between the pipe and the flange, it is difficult to ensure the centering of the interface, resulting in poor weld molding and unqualified welding quality, which increases rework and waste.
A workpiece for the butt welding weld of pipes and flanges is designed, using longitudinal angle steel fixing parts and adjustment screws. By adjusting the height of the screws, the flatness and axial alignment of the pipes and flanges are ensured.
It effectively ensures the flatness and axial alignment of the pipe and flange during welding, controls the welding gap, reduces deformation, and improves production efficiency and product quality.
Smart Images
Figure CN222791022U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ship tooling parts, and particularly relates to a fixing tool for butt-welding weld seams of pipes and flanges. Background Art
[0002] The welding of pipes and flanges has been widely used in many fields such as petroleum, chemical industry, and shipbuilding. The welding process is particularly important for the centering of pipes and flanges. Misalignment of the joints may lead to poor weld formation and unqualified welding quality, which in turn leads to unqualified pipeline tightness and test failure. Our factory processes a huge number of pipes. The inconvenience of interface centering during welding makes assembly difficult, increases unnecessary rework and waste, and this problem is particularly prominent in the welding process of prefabricated pipes in our factory. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a pipe and flange butt welding weld joint fixing tool, which is easy to operate, saves time and labor, has low production cost, and is safe and reliable.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A butt-weld joint fixing tool for a pipe and a flange comprises a longitudinal angle steel fixing piece and an adjusting screw. A through hole is opened at one end of the connecting edge of the longitudinal angle steel fixing piece, a nut is arranged inside the longitudinal angle steel fixing piece, the nut and the through hole are arranged coaxially, the upper end of the adjusting screw is penetrated by a through hole and a nut, and is threadedly connected with the nut; one end of the longitudinal angle steel fixing piece provided with the adjusting screw is placed inside the pipe, the upper and lower ends of the adjusting screw are respectively in contact with the upper and lower inner walls of the pipe, the other end of the longitudinal angle steel fixing piece is penetrated by a flange, and the two ends of the upper end face of the longitudinal angle steel fixing piece are respectively in contact with the upper side wall of the flange through hole and the upper side wall of the pipe.
[0006] Furthermore, the open end of the longitudinal angle steel fixing piece faces upward, and the connecting edge of the longitudinal angle steel fixing piece and the centerline axis of the pipe are located in the same vertical plane.
[0007] Furthermore, both side end surfaces of the open end of the longitudinal angle steel fixing piece are completely fitted with the inner side wall of the pipe.
[0008] Furthermore, the nut is fixedly connected to the longitudinal angle steel fixing piece by welding.
[0009] Furthermore, the longitudinal angle steel fixing piece is a 50mmX50mmX5mm angle steel.
[0010] The utility model discloses a pipe and flange butt welding weld joint fixing device, which can effectively ensure the flatness of the pipe and the flange during welding, improve the axial centering degree, control the weld gap, effectively control the deformation during welding, improve the production efficiency and product quality, and also improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the butt welding seam fixing tooling for pipes and flanges according to the utility model;
[0012] Figure 2 The utility model is a schematic diagram of the use state of the pipe and flange butt welding weld joint fixing tool.
[0013] Among them, 1-angle steel longitudinal fixing piece, 2-nut, 3-adjusting screw, 4-pipe, 5-butt welding flange. DETAILED DESCRIPTION
[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0015] like Figure 1 As shown, a butt-weld joint fixing tool for pipes and flanges comprises a longitudinal angle steel fixing piece 1 and an adjusting screw 3. A through hole is opened at one end of the connecting edge of the longitudinal angle steel fixing piece 1, and a nut 2 is arranged inside the longitudinal angle steel fixing piece 1. The nut 2 is welded and fixedly connected to the longitudinal angle steel fixing piece 1, and the nut 2 is arranged coaxially with the through hole. The upper end of the adjusting screw 3 is penetrated by a through hole and a nut 2, and is threadedly connected with the nut 2; one end of the longitudinal angle steel fixing piece 1 provided with the adjusting screw 3 is placed inside the pipe 4, and the upper and lower ends of the adjusting screw 3 are respectively abutted against the upper and lower inner walls of the pipe 4, and the other end of the longitudinal angle steel fixing piece 1 is penetrated by a flange 5, and the two ends of the upper end face of the longitudinal angle steel fixing piece 1 are respectively abutted against the upper side walls of the through hole of the flange 5 and the upper side walls of the pipe 4.
[0016] The longitudinal angle steel fixing member 1 is a 50mmX50mmX5mm angle steel; the open end of the longitudinal angle steel fixing member 1 faces upward, and the end surfaces on both sides of the open end are completely in contact with the inner wall of the pipe 4, and the connecting edge of the longitudinal angle steel fixing member 1 and the centerline axis of the pipe 4 are located in the same vertical plane.
[0017] like Figure 2 As shown, the steps of using this embodiment are as follows:
[0018] 1. The commonly used L50X50X5 angle steel is used for longitudinal fixing of the angle steel. A hole matching the adjusting screw 3 is drilled at the end of the angle steel, and the fixing nut 2 is welded in the V-mouth of the angle steel. The adjusting screw 3 is screwed into the angle steel nut 2 to adjust the height;
[0019] 2. Before welding the pipe 4 and the flange 5, insert the "V"-shaped longitudinal angle steel into the pipe 4, and rotate the adjusting screw 3 so that the bottom of the screw presses against the inner wall of the lower pipe 4, thereby achieving the purpose of fixing the longitudinal angle steel. Because the two longitudinal edges of the angle steel are in full contact with the pipe 4, it is ensured that the longitudinal angle steel and the pipe 4 are in a parallel line;
[0020] 3. When welding the pipe 4 and the flange 5, directly put the flange 5 on the longitudinal angle steel fixing piece 1, and start welding after adjusting the weld gap. The operation is convenient, time-saving, labor-saving, safe and reliable.
[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A butt welding fixture for pipe and flange, characterized in that: It includes a longitudinal angle steel fixing piece and an adjusting screw, wherein a through hole is opened at one end of the connecting edge of the longitudinal angle steel fixing piece, a nut is arranged inside the longitudinal angle steel fixing piece, the nut and the through hole are arranged coaxially, the upper end of the adjusting screw is penetrated by a through hole and a nut, and is threadedly connected with the nut; the end of the longitudinal angle steel fixing piece provided with the adjusting screw is placed inside the pipe, the upper and lower ends of the adjusting screw are respectively in contact with the upper and lower inner walls of the pipe, the other end of the longitudinal angle steel fixing piece is penetrated by a flange, and the two ends of the upper end face of the longitudinal angle steel fixing are respectively in contact with the upper side wall of the flange through hole and the upper side wall of the pipe.
2. A pipe and flange butt welding seam fixing tool according to claim 1, characterized in that: The open end of the longitudinal angle steel fixing piece faces upward, and the connecting edge of the longitudinal angle steel fixing piece and the center line axis of the pipe are located in the same vertical plane.
3. A pipe and flange butt welding seam fixing tool according to claim 2, characterized in that: The end surfaces on both sides of the open end of the longitudinal angle steel fixing piece are completely fitted with the inner side wall of the pipe.
4. A pipe and flange butt welding seam fixing tool according to claim 1, characterized in that: The nut is fixedly connected to the longitudinal angle steel fixing piece by welding.
5. The pipe and flange butt welding seam fixing tool according to claim 1 is characterized in that: The longitudinal angle steel fixing piece is a 50mmX50mmX5mm angle steel.