A pipe welding flange auxiliary frame assembly
By designing a pipe welding flange auxiliary frame assembly, which utilizes heating wires and fans for preheating and a motor to drive rotation, the problems of long cooling time after pipe welding and heat loss during preheating are solved, thereby improving welding efficiency and production line smoothness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG QIJI QIANCHENG ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-05
AI Technical Summary
Pipes require several minutes to cool naturally after welding, which reduces the smoothness of the production line. Furthermore, the preheating process before welding causes heat loss, affecting production efficiency.
The system employs a pipe welding flanged bracket assembly, which preheats the pipe connections using heating wires and a fan, and uses a motor to drive the pipes to rotate, combined with a fan and a water tank for rapid heat dissipation.
It achieves efficient preheating and heat dissipation of pipelines, eliminates the need for preheating tooling, and improves welding efficiency and production line smoothness.
Smart Images

Figure CN224322635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding processing technology, specifically to a pipe welding flange auxiliary frame assembly. Background Technology
[0002] Pipe welding is a method for connecting pipes, commonly used in industries such as plumbing, gas transmission, petroleum, and chemicals. The process involves heating two sections of pipe to a sufficiently high temperature and then using filler metal (welding rods) to fuse them together, forming a strong connection. For larger pipes, a support structure is usually required to support the pipe. This support structure also has the function of driving the pipe to rotate, so that the unwelded area of the pipe can be rotated to face the worker, making it easier to carry out continuous welding work.
[0003] After welding, pipes need to be allowed to cool naturally before other processing work (such as painting for corrosion protection) can be carried out. However, the natural cooling time can take several minutes to several hours, which increases the pipe processing time and reduces the smoothness of the production line. In addition, preheating the pipes helps to remove gases, especially hydrogen gas that overflows from the weld. Therefore, preheating fixtures are often used to preheat the pipes before welding. After preheating, the pipes need to be transferred to the welding site. This can easily lead to the loss of preheated heat during the transfer of the preheated pipes. To address the above problems, the inventors have proposed a pipe welding flange auxiliary frame assembly to solve the above problems. Utility Model Content
[0004] To address the issues of natural cooling required after pipe welding, which often takes several minutes and reduces production line efficiency, and the preheating of pipes before welding using preheating fixtures followed by transfer to the welding area, resulting in heat loss during preheating; the purpose of this invention is to provide a pipe welding flange support assembly.
[0005] To solve the above technical problems, the present invention adopts the following technical solution: a pipe welding flange auxiliary frame assembly, including a base, an installation box fixedly connected to the center of the top of the base, an arc-shaped installation box one fixedly connected to the center of the top of the installation box, an L-shaped installation plate fixedly connected to the center of the back end of the installation box, a top plate provided below the L-shaped installation plate, an arc-shaped installation box two fixedly connected to the center of the bottom end of the top plate, and the arc-shaped installation box two and the arc-shaped installation box one are symmetrically distributed. Several air outlets are symmetrically opened at opposite ends of the arc-shaped installation box two and the arc-shaped installation box one. A fan is provided on the inner wall of the arc-shaped installation box two and the arc-shaped installation box one on the side away from the air outlet. A water tank is fixedly connected to the center of the air outlet on the inner wall of the arc-shaped installation box one. Several heating wires are fixedly connected between the side walls of the arc-shaped installation box two.
[0006] Preferably, an electric cylinder is provided at the top of the L-shaped mounting plate, and the output end of the electric cylinder passes through the L-shaped mounting plate and is fixedly connected to the top plate. The top of the mounting box is symmetrically provided with sliding grooves near the center.
[0007] Preferably, a vertical box is slidably connected to the top of the mounting box and located at the slide groove, and the two vertical boxes are symmetrically distributed. A double-headed electric cylinder is provided at the center of the interior of the mounting box, and the output end of the double-headed electric cylinder is fixedly connected to both vertical boxes.
[0008] Preferably, a hydraulic chuck is rotatably connected to one end of the vertical box near the center of the mounting box, and the two hydraulic chucks are symmetrically distributed.
[0009] Preferably, a motor is provided on the side wall of the vertical box, and the output end of the motor passes through the vertical box and is fixedly connected to the hydraulic chuck. A water inlet pipe is fixedly connected to the side end of the water tank near the top, and a water outlet pipe is fixedly connected to the other side end of the water tank near the bottom.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. In this utility model, by activating the heating wire and one of the fans, hot air is blown towards the pipe connection through the air outlet. At the same time, two motors drive two pipes to rotate simultaneously, ensuring that the pipe connection is heated evenly. This achieves the preheating of the pipes, eliminating the need for a preheating fixture and improving work efficiency.
[0012] 2. The fan at the water tank in this utility model can deliver cold air upwards. Combined with the operation of two motors, it can quickly dissipate heat at the pipe connection, improve heat dissipation efficiency, and shorten the waiting time for subsequent processing. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a cross-sectional view of the mounting box of this utility model.
[0016] Figure 3 This is a two-section structural schematic diagram of the arc-shaped mounting box of this utility model.
[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0018] In the diagram: 1. Base; 2. Mounting box; 21. Double-headed electric cylinder; 22. Slide groove; 23. Arc-shaped mounting box one; 24. Fan; 25. Water tank; 26. Air outlet; 27. Water outlet pipe; 28. Water inlet pipe; 3. Vertical box; 31. Hydraulic chuck; 32. Motor; 4. L-shaped mounting plate; 41. Top plate; 42. Arc-shaped mounting box two; 44. Heating wire; 45. Electric cylinder one. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example: Figure 1-4 As shown, this utility model provides a technical solution: a pipe welding flange auxiliary frame assembly, including a base 1, a mounting box 2 fixedly connected to the center of the top of the base 1, an arc-shaped mounting box 23 fixedly connected to the center of the top of the mounting box 2, an L-shaped mounting plate 4 fixedly connected to the center of the back end of the mounting box 2, a top plate 41 provided below the L-shaped mounting plate 4, an arc-shaped mounting box 42 fixedly connected to the center of the bottom end of the top plate 41, and the arc-shaped mounting box 42 and the arc-shaped mounting box 23 are symmetrically distributed. Several air outlets 26 are symmetrically opened at opposite ends of the arc-shaped mounting box 42 and the arc-shaped mounting box 23. Fans 24 are installed on the inner wall of the side away from the air outlet 26. A water tank 25 is fixedly connected to the inner wall of the arc-shaped mounting box 1 23 near the center of the air outlet 26. Several heating wires 44 are fixedly connected between the side walls of the arc-shaped mounting box 2 42. An electric cylinder 1 45 is provided to drive the arc-shaped mounting box 2 42 to rise and fall under the action of two guide telescopic rods. After the arc-shaped mounting box 2 42 is lowered, it is convenient for the staff to remove dust from the air outlet 26. The electrical components in this application and their compatible power supply are electrically connected through wires. A suitable controller should be selected according to the actual situation to meet the control requirements. The detailed connection method is a well-known technology in this field.
[0021] An electric cylinder 45 is installed at the top of the L-shaped mounting plate 4, and the output end of the electric cylinder 45 passes through the L-shaped mounting plate 4 and is fixedly connected to the top plate 41.
[0022] By adopting the above technical solution, the electric cylinder 45 is operated, thereby causing the fixedly connected top plate 41 to rise and fall under the action of the two guide telescopic rods.
[0023] The top of the mounting box 2 has symmetrical sliding grooves 22 near the center.
[0024] By adopting the above technical solution, symmetrical sliding grooves 22 are opened at the top of the mounting box 2 near the center, which is to facilitate the sliding of the vertical box 3 and play a guiding and limiting role.
[0025] A vertical box 3 is slidably connected to the top of the mounting box 2 at the slide groove 22, and the two vertical boxes 3 are symmetrically distributed.
[0026] The vertical box 3 is set up by adopting the above technical solution in order to facilitate the installation and fixing of the hydraulic chuck 31 and the motor 32.
[0027] A double-headed electric cylinder 21 is installed at the center of the inside of the mounting box 2. The output end of the double-headed electric cylinder 21 is fixedly connected to both vertical boxes 3.
[0028] By adopting the above technical solution, the working double-headed electric cylinder 21 can be activated to make the two fixedly connected vertical boxes 3 move towards each other, thereby achieving the effect of adjusting the distance between the two vertical boxes 3.
[0029] A hydraulic chuck 31 is rotatably connected to one end of the vertical box 3 near the center of the mounting box 2, and the two hydraulic chucks 31 are symmetrically distributed.
[0030] By adopting the above technical solution, a hydraulic chuck 31 is set on the side of the vertical box 3 to facilitate direct positioning of the pipeline. The hydraulic chuck 31 is mounted on a disc to facilitate adjustment of its angle.
[0031] A motor 32 is installed on the side wall of the vertical box 3, and the output end of the motor 32 passes through the vertical box 3 and is fixedly connected to the hydraulic chuck 31.
[0032] By adopting the above technical solution, the working motor 32 causes the fixedly connected hydraulic chuck 31 to rotate under the action of the disc.
[0033] A water inlet pipe 28 is fixedly connected to the side end of the water tank 25 near the top, and a water outlet pipe 27 is fixedly connected to the other side end of the water tank 25 near the bottom.
[0034] By adopting the above technical solution, the water inlet pipe 28 is set to facilitate the addition of ice water to the water tank 25, and the water outlet pipe 27 is set to replace the ice water. Both the water inlet pipe 28 and the water outlet pipe 27 are equipped with protective caps.
[0035] Working principle: When using this device, firstly, the two pipes to be welded are respectively placed on two hydraulic chucks 31, and the working hydraulic chucks 31 are started to complete the limiting work of the pipes. Then, the working double-headed electric cylinder 21 is started, so that the two vertical boxes 3 drive the two pipes to move towards each other. Once the two pipes are connected, the heating wire 44 and one of the fans 24 are started, so that hot air is blown to the pipe connection through the air outlet 26. At the same time, the two motors 32 are started to achieve the effect of rotating the two pipes at the same time. This can preheat the connection of the two pipes, thus eliminating the need to use a preheating fixture to preheat the pipes.
[0036] After preheating the pipe connection, one of the fans 24 and the heating wire 44 can be turned off. Then, welding equipment (such as a welding gun, which will not be described in detail here) is used to weld it. After welding is completed, the fan 24 at the water tank 25 (the water tank 25 needs to be filled with suitable cold water before operation) can be turned on to achieve the effect of supplying cold air upwards. The two motors 32 are used to complete the heat dissipation effect at the pipe connection, thereby improving the efficiency of heat dissipation at the pipe connection and avoiding affecting the time of subsequent processing.
[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A pipe welding flange auxiliary frame assembly, comprising a base (1), characterized in that: A mounting box (2) is fixedly connected to the top center of the base (1), an arc-shaped mounting box (23) is fixedly connected to the top center of the mounting box (2), an L-shaped mounting plate (4) is fixedly connected to the back center of the mounting box (2), a top plate (41) is provided below the L-shaped mounting plate (4), an arc-shaped mounting box (42) is fixedly connected to the bottom center of the top plate (41), and the arc-shaped mounting box (42) and the arc-shaped mounting box (23) are symmetrically distributed; The arc-shaped mounting box 2 (42) and the arc-shaped mounting box 1 (23) are symmetrically provided with several air outlets (26) at opposite ends. The inner walls of the arc-shaped mounting box 2 (42) and the arc-shaped mounting box 1 (23) away from the air outlets (26) are provided with fans (24). A water tank (25) is fixedly connected to the center of the inner wall of the arc-shaped mounting box 1 (23) near the air outlet (26). Several heating wires (44) are fixedly connected between the side walls of the arc-shaped mounting box 2 (42).
2. The pipe welding flange auxiliary frame assembly as described in claim 1, characterized in that, The top of the L-shaped mounting plate (4) is provided with an electric cylinder (45), and the output end of the electric cylinder (45) passes through the L-shaped mounting plate (4) and is fixedly connected to the top plate (41).
3. The pipe welding flange auxiliary frame assembly as described in claim 1, characterized in that, The top of the mounting box (2) is symmetrically provided with sliding grooves (22) near the center.
4. The pipe welding flange auxiliary frame assembly as described in claim 3, characterized in that, The mounting box (2) is slidably connected to a vertical box (3) at the top of the mounting box (2) and at the slide groove (22), and the two vertical boxes (3) are symmetrically distributed.
5. A pipe welding flange auxiliary frame assembly as described in claim 4, characterized in that, A double-headed electric cylinder (21) is provided at the center of the installation box (2), and the output end of the double-headed electric cylinder (21) is fixedly connected to two vertical boxes (3).
6. A pipe welding flange auxiliary frame assembly as described in claim 4, characterized in that, The vertical box (3) is rotatably connected to a hydraulic chuck (31) on one side near the center of the mounting box (2), and the two hydraulic chucks (31) are symmetrically distributed.
7. A pipe welding flange auxiliary frame assembly as described in claim 6, characterized in that, A motor (32) is provided on the side wall of the vertical box (3), and the output end of the motor (32) passes through the vertical box (3) and is fixedly connected to the hydraulic chuck (31).
8. A pipe welding flange auxiliary frame assembly as described in claim 1, characterized in that, A water inlet pipe (28) is fixedly connected to the side end of the water tank (25) near the top, and a water outlet pipe (27) is fixedly connected to the other side end of the water tank (25) near the bottom.