Flange welding rotating die
By designing a rotating mold for flange welding, the deviation problem during flange welding was solved, achieving high-precision welding and ensuring appearance quality, simplifying the operation process and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2026-04-03
AI Technical Summary
In pipeline engineering, deviations are prone to occur during flange welding, making it difficult to ensure a tight seal. Furthermore, it requires highly skilled welders, as it is difficult to rotate the steel pipe and flange joint during the welding process, resulting in poor welding quality and appearance.
Design a flange welding rotating mold, including a turntable, positive and negative threaded rods, positioning seat, adjusting nut and rotating rod. Through the cooperation of these components, the flange can be fixed and rotated, ensuring the accuracy of the welding position and the appearance quality.
It improved welding precision, simplified procedures, reduced labor intensity, increased welding efficiency, and enhanced the sealing effect between the flange and the steel pipe.
Smart Images

Figure CN224073625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline welding technology, specifically a flange welding rotating mold. Background Technology
[0002] Welded flanges are components used to connect pipes to each other, attached to the pipe ends, and are the most common type of flange in piping engineering. Flange welding is an essential step in pipeline fabrication, and the quality of the flange welding directly affects the quality of the pipeline during installation and use.
[0003] In daily work, the assembled flanges are fixed in place for welding. This method is prone to welding deviations, making it difficult to ensure the sealing effect between the steel pipe and the flange joint. It also requires a high level of skill from the welder. Furthermore, it is difficult to rotate the steel pipe and flange joint during welding, resulting in poor appearance and difficulty in guaranteeing quality after welding. Utility Model Content
[0004] The purpose of this utility model is to provide a flange welding rotating mold. By setting up a turntable, positive and negative threaded rods, positioning seat, adjusting nut and rotating rod, it solves the problem that in daily work, the assembled flange is fixedly placed for welding. This method is prone to welding deviation during welding, making it difficult to ensure the sealing effect of the steel pipe and flange joint. It also requires a high level of skill from the welder. Furthermore, it is difficult to rotate the steel pipe and flange joint during welding, resulting in poor appearance and difficulty in guaranteeing quality after welding.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a flange welding rotating mold, including a turntable, the surface of which is provided with a plurality of strip-shaped perforations, a support welded to the middle of the back of the turntable, bearing seats fixedly installed on both the upper and lower sides of the support, and a positive and negative threaded rod rotatably connected to the support through the bearing seats;
[0006] Both ends of the positive and negative threaded rods are threaded with collars, and a positioning seat is fixedly connected to one side of the collars;
[0007] The positioning seat is slidably connected to the inside of the strip-shaped perforation, and two adjusting nuts are welded to the surface of the positive and negative threaded rods;
[0008] A rotating rod is welded to one end of the support, and a bearing is connected to the surface of the rotating rod via a spline. The rotating rod is rotatably connected to a sleeve through the bearing.
[0009] Preferably, sliders are fixedly connected to both sides of the positioning seat, and slide rails are fixedly connected to both the upper and lower sides of the back of the turntable, with the sliders slidably connected inside the slide rails.
[0010] Preferably, a support rod is welded to the surface of the sleeve, and an I-beam base is welded to the bottom end of the support rod.
[0011] This utility model provides a flange welding rotating mold, which has the following beneficial effects:
[0012] In use, the adjusting nut is turned with a wrench to rotate the threaded rod, which in turn moves the positioning seat to the appropriate position. The flange is then installed and fixed by inserting bolts. This allows for the fixing of flanges with different bolt hole spacings, making it highly versatile. After the flange is fixed, the turntable can be rotated to ensure that the welding position between the flange and the steel pipe is always in the flat welding position. The welder can control the rotation speed according to the welding speed to ensure the optimal welding position, thereby ensuring welding quality and appearance. This equipment can ensure flange welding accuracy, simplify the process, improve welding efficiency, reduce the number of operators, and reduce labor intensity. Attached Figure Description
[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a rear view schematic diagram of the structure of this utility model;
[0016] Figure 3 This is a structural breakdown diagram of the positioning seat of this utility model;
[0017] Figure 4 This is a structural disassembly diagram of the positive and negative threaded rods of this utility model.
[0018] The image shows:
[0019] 1. Turntable; 2. Strip perforation; 3. Support; 4. Bearing housing; 5. Threaded rod (positive and negative); 6. Collar; 7. Positioning seat; 8. Slider; 9. Slide rail; 10. Adjusting nut; 11. Rotating rod; 12. Bearing; 13. Sleeve; 14. Support rod; 15. I-beam base. Detailed Implementation
[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a flange welding rotating mold, including a turntable 1. The surface of the turntable 1 has multiple strip-shaped perforations 2. By inserting bolts through the strip-shaped perforations 2 and through the flange, the flange is fixed on the turntable 1. A support 3 is welded to the middle of the back of the turntable 1. Bearing seats 4 are fixedly installed on the upper and lower sides of the support 3. The support 3 is rotatably connected to a positive and negative threaded rod 5 through the bearing seats 4. The positive and negative threaded rod 5 has opposite threaded spiral directions from the middle to the upper and lower ends, so that when it rotates, it can drive the surface connector to move closer to the middle or push it to both ends.
[0023] Both ends of the positive and negative threaded rod 5 are threaded with collars 6. A positioning seat 7 is fixedly connected to one side of the collar 6. Slider 8 is fixedly connected to both sides of the positioning seat 7. Slide rails 9 are fixedly connected to the upper and lower sides of the back of the turntable 1. Slider 8 is slidably connected to the inside of the slide rails 9.
[0024] By rotating the positive and negative threaded rods 5, the collars 6 at both ends can be driven to move to both ends, and the positioning seat 7 can move up and down in the strip-shaped through hole 2. The position of the positioning seat 7 can be adjusted according to the distance of the bolt holes on the flange, thereby avoiding the difficulty of welding caused by the bolts in the flange moving up and down in the strip-shaped through hole 2 when the turntable 1 rotates.
[0025] The positioning seat 7 is slidably connected to the inside of the strip-shaped perforation 2. Two adjusting nuts 10 are welded to the surface of the positive and negative threaded rod 5. Personnel can rotate the adjusting nuts 10 with a wrench, thereby rotating the positive and negative threaded rod 5 to achieve the adjustment purpose.
[0026] A rotating rod 11 is welded to one end of the support 3. A bearing 12 is connected to the surface of the rotating rod 11 via a spline. A sleeve 13 is rotatably connected to the rotating rod 11 through the bearing 12. A support rod 14 is welded to the surface of the sleeve 13. An I-shaped base 15 is welded to the bottom end of the support rod 14.
[0027] The equipment is supported by the I-beam base 15 and the support rod 14, and the turntable 1 is rotated by the rotating rod 11 and the bearing 12, so that the flange can be rotated during welding, making it convenient for personnel to perform welding.
[0028] Specifically, when this flange welding rotating mold is in operation / use: During use, the adjusting nut 10 is turned by using a wrench to rotate the positive and negative threaded rod 5, which in turn moves the positioning seat 7 to the appropriate position. The flange is then installed and fixed by inserting bolts, thus fixing flanges with different bolt hole spacings, making it highly versatile. At the same time, after the flange is fixed, the turntable 1 can be rotated to ensure that the flange and steel pipe welding position is always in the flat welding position. During the process, the welding personnel can control the rotation speed according to the welding speed to ensure the optimal welding position, thereby ensuring welding quality and appearance. This equipment can ensure flange welding accuracy, simplify the process, improve welding efficiency, reduce the number of operators, and reduce labor intensity.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flange welding rotary die comprising a rotary table (1), characterized in that: The surface of the rotating disc (1) is provided with a plurality of strip-shaped perforations (2), the middle of the back of the rotating disc (1) is welded with a support (3), the upper and lower sides of the support (3) are fixedly installed with bearing seats (4), the support (3) is rotationally connected with a forward and reverse toothed lead screw (5) through the bearing seats (4); Both ends of the forward and reverse toothed lead screw (5) are threadedly connected with collars (6), one side of the collar (6) is fixedly connected with a positioning seat (7); The positioning seat (7) is slidingly connected in the strip-shaped perforation (2), the surface of the forward and reverse toothed lead screw (5) is welded with two adjusting nuts (10); One end of the support (3) is welded with a rotating rod (11), the surface of the rotating rod (11) is spline-connected with a bearing (12), the rotating rod (11) is rotationally connected with a sleeve seat (13) through the bearing (12).
2. The flange welding rotary die according to claim 1, wherein: Both sides of the positioning seat (7) are fixedly connected with sliding blocks (8), the upper and lower sides of the back of the rotating disc (1) are fixedly connected with sliding rails (9), the sliding blocks (8) are slidingly connected in the sliding rails (9).
3. The flange welding rotary die according to claim 1, wherein: The surface of the sleeve seat (13) is welded with a supporting rod (14), the bottom end of the supporting rod (14) is welded with an I-shaped base (15).