Pipeline welding tool
By designing welding fixtures for pipe fittings and utilizing automated rotation driven by gantry cranes and motors, the problems of long preparation time, high labor intensity, and high safety risks associated with traditional manual rotating frames have been solved, achieving efficient and safe pipe welding.
Patent Information
- Application Number
- CN202422957545.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Traditional manual rotating gantry welding machines have problems such as long welding preparation time, high labor intensity, and high safety risks in pipe welding, and they are difficult to adapt to bends of different sizes.
A welding fixture for pipe fittings was designed, which uses a gantry crane to lift and place the workpiece. Combined with the fixing method of screw and pressure plate, the automatic rotation of the flipping shaft and rotating shaft driven by the motor provides convenient and precise adjustment of the welding angle.
It greatly simplifies the preparation work before welding, reduces labor intensity, lowers operational risks, improves welding efficiency and flexibility, adapts to bends of different sizes, and ensures welding quality and safety.
Smart Images

Figure CN223544461U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipe fitting welding technology, specifically to a pipe fitting welding fixture. Background Technology
[0002] To ensure welding quality and improve production efficiency, various pipe welding auxiliary devices have been widely researched and applied. Currently, the market offers a wide variety of pipe welding auxiliary devices, including manual rotating frames and automatic welding machines. Manual rotating frames, as a common auxiliary tool, allow operators to adjust the angle of the workpiece during welding, facilitating the welding of complex welds. Automatic welding machines go a step further, achieving a high degree of automation in the welding process through preset programs and precise control of robotic arms, significantly improving welding accuracy and efficiency, but at a higher cost.
[0003] In practical applications, traditional manual rotating frames require the curved surfaces of pipes to be pre-welded onto the rotating disk before welding the connecting end faces in order to maintain the stability of the workpiece welding. This increases preparation time and reduces production efficiency. Furthermore, when placing pipe workpieces, workers need to bear high labor intensity, which not only increases the risk of operation but also may cause workers to be easily scratched by the pipe cross-section due to careless operation. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a pipe fitting welding fixture that has advantages such as low cost and ease of fixing, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution: a pipe fitting welding fixture, including a base plate, two bases fixedly connected to the upper surface of the base plate, a flipping shaft rotatably connected between the two bases, a flipping frame fixedly connected to the outer surface of the flipping shaft, a rotating shaft provided on one side of the top of the flipping frame, and a turntable fixedly connected to the right end of the rotating shaft;
[0006] The outer surface of the turntable has a set of distributed threaded holes, and one side of the turntable contacts the workpiece.
[0007] The above solution, using a gantry crane, allows for easy lifting and placement of workpieces, significantly reducing labor intensity and operational risks. The combination of screws and pressure plates securely fixes the workpiece to the turntable, effectively preventing movement and falls during welding and further enhancing operational safety. Unlike traditional methods, it eliminates the need to pre-weld the curved pipe surface onto the turntable, greatly simplifying pre-welding preparations and improving the flexibility and efficiency of welding operations. The distributed threaded hole design on the turntable allows the fixture to accommodate bends of different sizes, further expanding its application range. With the first and second motors, the fixture achieves automated rotation of the tilting and rotating shafts, providing operators with a more convenient and precise method for adjusting welding angles.
[0008] Furthermore, a gantry crane is installed on the upper surface of the base plate.
[0009] The above scheme, through the setting of the gantry crane, can achieve the purpose of lifting the workpiece, making it convenient for users to place the workpiece on the turntable.
[0010] Furthermore, each of the multiple threaded holes has a threaded rod connected to a screw, and the outer surface of each screw is in contact with the workpiece.
[0011] The above solution, by setting the threaded rod, can achieve the purpose of limiting the workpiece and preventing it from moving.
[0012] Furthermore, each of the two screws has a pressure plate fitted onto its outer surface, and both pressure plates are in contact with the inner walls of both ends of the workpiece. The other end of each of the two screws is threaded with a nut.
[0013] The above scheme and settings can achieve the purpose of fixing the workpiece and prevent it from falling.
[0014] Furthermore, a first motor is mounted on the back of the base at the rearmost end, and the output end of the first motor is fixedly connected to the rear end of the flip shaft.
[0015] The above scheme, through the setting of the first motor, can provide power for the rotation of the flip shaft.
[0016] Furthermore, a second motor is fixedly installed at the top of the tilting frame, and the output end of the second motor is fixedly connected to one end of the rotating shaft.
[0017] The above scheme, through the installation of a second motor, can provide power for the rotation of the turntable.
[0018] Furthermore, the turntable is made of stainless steel.
[0019] The above solutions and settings can improve the lifespan of the turntable.
[0020] Furthermore, one side of the turntable is polished.
[0021] The above solution can improve the overall flatness while avoiding scratches on the workpiece surface.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This pipe fitting welding fixture, using a gantry crane, can easily lift and place workpieces, greatly reducing the labor intensity of workers and lowering operational risks. Through a combination of screws and pressure plates, the workpiece is firmly fixed to the turntable, effectively preventing movement and falling during welding, further enhancing operational safety. Unlike traditional methods, it eliminates the need to pre-weld the curved pipe surface onto the turntable, significantly simplifying pre-welding preparation and improving the flexibility and efficiency of welding operations. The distributed threaded hole design on the turntable allows the fixture to adapt to bends of different sizes, further expanding its application range. With the addition of a first and second motor, the fixture achieves automated rotation of the tilting and rotating shafts, providing operators with a more convenient and precise method for adjusting welding angles. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;
[0025] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;
[0026] Figure 3 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 3 ;
[0027] Figure 4 This is a diagram of the screw structure of this application.
[0028] In the picture:
[0029] 1. Base plate; 2. Base; 3. Tilting shaft; 4. Tilting frame; 5. Rotating shaft; 6. Turntable; 7. Threaded hole; 8. Workpiece; 9. Gantry crane; 10. Screw; 11. Pressure plate; 12. Nut; 13. First motor; 14. Second motor. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a pipe fitting welding fixture includes a base plate 1. Two bases 2 are fixedly connected to the upper surface of the base plate 1. A flipping shaft 3 is rotatably connected between the two bases 2. A flipping frame 4 is fixedly connected to the outer surface of the flipping shaft 3. A rotating shaft 5 is provided on one side of the top of the flipping frame 4. A turntable 6 is fixedly connected to the right end of the rotating shaft 5. The flipping frame 4 allows for adjustment of the flipping angle of the turntable 6. A gantry crane 9 is installed on the upper surface of the base plate 1. The gantry crane 9 allows for lifting of the workpiece 8, making it convenient for the user to place the workpiece 8 on the turntable 6. A first motor 13 is installed on the back of the rear base 2. The output end of the first motor 13 is fixedly connected to the rear end of the flipping shaft 3. The first motor 13 provides power for the rotation of the flipping shaft 3.
[0032] Please see Figure 1 , Figure 2 and Figure 4 A second motor 14 is fixedly installed at the top of the flipping frame 4. The output end of the second motor 14 is fixedly connected to one end of the rotating shaft 5. The second motor 14 provides power for the rotation of the turntable 6. A set of distributed threaded holes 7 are opened on the outer surface of the turntable 6. One side of the turntable 6 contacts the workpiece 8. The distributed threaded holes 7 make it easy for users to weld bent pipes of different sizes. The threaded holes 7 are connected to screws 10 inside the threaded rods. The outer surface of each screw 10 contacts the workpiece 8. The threaded rods can limit the workpiece 8 and prevent it from moving.
[0033] Please see Figure 1 , Figure 2 and Figure 4 The outer surfaces of the two screws 10 are fitted with pressure plates 11, and the two pressure plates 11 are in contact with the inner walls of both ends of the workpiece 8. The other ends of the two screws 10 are threaded with nuts 12. Through the above arrangement, the workpiece 8 can be fixed and prevented from falling.
[0034] Please see Figure 1 , Figure 2 and Figure 3The turntable 6 is made of stainless steel. The above settings can improve the service life of the turntable 6. One side of the turntable 6 is polished to improve the overall flatness and avoid scratching the surface of the workpiece 8.
[0035] This embodiment of a pipe fitting welding fixture, using a gantry crane 9, can easily lift and place the workpiece 8, greatly reducing the labor intensity of workers and lowering operational risks. Through the combination of screw 10 and pressure plate 11, the workpiece 8 is firmly fixed on the turntable 6, effectively preventing the workpiece 8 from moving or falling during the welding process, further improving operational safety. Unlike traditional methods, there is no need to pre-weld the curved surface of the pipe onto the turntable 6, thus greatly simplifying the pre-welding preparation work and improving the flexibility and efficiency of the welding operation. The distributed threaded hole 7 design on the turntable 6 allows the fixture to adapt to bends of different sizes, further expanding the application range of the fixture. Through the setting of the first motor 13 and the second motor 14, this fixture realizes the automated rotation of the flipping shaft 3 and the rotating shaft 5, providing operators with a more convenient and precise way to adjust the welding angle.
[0036] The working principle of the above embodiment is as follows: First, the operator uses the gantry crane 9 on the tooling to easily lift the pipe workpiece 8 to be welded and accurately place it in the center of the turntable 6. The design of the gantry crane 9 greatly reduces the labor intensity of workers and also reduces the operational risks caused by manual handling. Next, the operator selects appropriate threaded holes 7 according to the size and shape of the pipe workpiece 8 and screws the screw 10 into these threaded holes 7. The outer surface of the screw 10 contacts the workpiece 8. By adjusting the screw depth of the screw 10, the workpiece 8 can be initially limited to prevent it from moving during the welding process. To further enhance the stability of the workpiece 8, the operator will attach pressure plates 11 to the outer surfaces of the two screws 10 respectively, and make the pressure plates 11 in close contact with the inner walls of both ends of the workpiece 8. Then, the operator tightens the nut 12 on the other end of the screw 10. The workpiece 8 is securely fixed to the turntable 6 by a combination of screw 10, pressure plate 11, and nut 12, effectively preventing the workpiece 8 from moving or falling during the welding process and ensuring the safety of the welding operation. After the workpiece 8 is fixed, the operator can control the first motor 13 to drive the rotating shaft 3 to rotate, thereby causing the rotating frame 4 and the workpiece 8 on the turntable 6 to rotate, achieving a preliminary adjustment of the welding angle. At the same time, the operator can also control the second motor 14 to drive the rotating shaft 5 to rotate, causing the turntable 6 and the workpiece 8 to rotate on the horizontal plane, further precisely adjusting the welding angle. Finally, the operator uses the welding equipment to perform welding operations on the workpiece 8 according to the welding process requirements. During the welding process, because the workpiece 8 is securely fixed to the turntable 6 and the welding angle can be flexibly adjusted, the welding quality and efficiency can be ensured.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A welding fixture for pipe fittings, comprising a base plate (1), characterized in that: Two bases (2) are fixedly connected to the upper surface of the base plate (1), and a flipping shaft (3) is rotatably connected between the two bases (2). A flipping frame (4) is fixedly connected to the outer surface of the flipping shaft (3). A rotating shaft (5) is provided on one side of the top of the flipping frame (4), and a turntable (6) is fixedly connected to the right end of the rotating shaft (5). The outer surface of the turntable (6) is provided with a set of distributed threaded holes (7), and one side of the turntable (6) is in contact with a workpiece (8).
2. The pipe fitting welding fixture according to claim 1, characterized in that: A gantry crane (9) is installed on the upper surface of the base plate (1).
3. The pipe fitting welding fixture according to claim 1, characterized in that: Among them, several The threaded hole (7) is connected to a screw (10) inside the threaded rod, and the outer surface of each screw (10) is in contact with the workpiece (8).
4. The pipe fitting welding fixture according to claim 3, characterized in that: Both of the screws (10) have pressure plates (11) fitted on their outer surfaces. Both pressure plates (11) are in contact with the inner walls of both ends of the workpiece (8). The other ends of both screws (10) are threaded with nuts (12).
5. The pipe fitting welding fixture according to claim 1, characterized in that: The back of the base (2) at the rear end is equipped with a first motor (13), and the output end of the first motor (13) is fixedly connected to the rear end of the flip shaft (3).
6. The pipe fitting welding fixture according to claim 1, characterized in that: The top of the flipping frame (4) is fixedly installed with a second motor (14), and the output end of the second motor (14) is fixedly connected to one end of the rotating shaft (5).
7. The pipe fitting welding fixture according to claim 1, characterized in that: The turntable (6) is made of stainless steel.
8. The pipe fitting welding fixture according to claim 1, characterized in that: One side of the turntable (6) is polished.