Pipe welding tool

By combining upper and lower steel plates with rubber strips and a level, the design solves the problem that traditional tooling is difficult to adapt to different pipe fittings and control parallelism, achieving efficient and stable pipe welding, and improving welding accuracy and yield.

CN223863222UActive Publication Date: 2026-02-03BEIJING HUDU ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520382775.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Traditional pipe welding fixtures are difficult to adapt to pipes of different diameters and shapes, resulting in frequent adjustments to the fixture position during the welding process and difficulty in accurately controlling the levelness and parallelism of the pipes, which affects welding quality and efficiency.

Method used

The upper and lower steel plates form a channel for clamping pipe fittings, and multiple rubber strips are installed in the channel. Combined with detachable connections and a level design, the stability and parallelism of the pipe fittings are ensured, and the through grooves provide flexibility and convenience.

Benefits of technology

It improves welding quality and efficiency, reduces welding defects caused by uneven pipelines, lowers production costs and operation time, and enhances the stability and safety of clamping.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipe welding tool which comprises an upper steel sheet and a lower steel sheet, the upper steel sheet and the lower steel sheet are connected, a channel capable of clamping a pipe fitting is formed between the upper steel sheet and the lower steel sheet, one side end of the upper steel sheet is hinged to one side end of the lower steel sheet, and the other side end of the upper steel sheet is detachably connected with the other side end of the lower steel sheet. A gradienter is arranged on the upper steel sheet, through grooves are formed in the upper steel sheet and the lower steel sheet, and a plurality of rubber strips are arranged in the channel and fixedly connected to the upper steel sheet and the lower steel sheet respectively.
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Description

Technical Field

[0001] This utility model relates to the field of tooling and fixtures, and in particular to a pipe welding tooling. Background Technology

[0002] With the development of industrial technology and the increasing complexity of pipeline systems, the requirements for the precision and efficiency of pipe welding are becoming increasingly stringent. Traditional pipe welding fixtures typically employ simple clamp designs, such as using fixed clamps or simple supports to hold the pipes in place. However, these methods have significant limitations. For example, traditional clamps often cannot adapt well to pipes of different diameters and shapes, leading to frequent adjustments to the clamp position or reinstallation of the clamps during the welding process. This not only increases workload but may also affect weld quality.

[0003] Furthermore, traditional spirit level positioning methods are insufficient for accurately controlling the levelness and parallelism of pipe fittings, especially when dealing with long pipe sections or multiple fittings arranged in parallel. This can easily lead to problems such as fittings being uneven or misaligned, resulting in a decline in the overall performance of the pipeline system after welding, and even causing safety hazards such as leaks. Therefore, in practice, repeated welding is often required to correct deviations caused by inaccurate initial installation, which significantly reduces work efficiency and increases production costs.

[0004] To address the aforementioned issues, existing pipe welding fixtures urgently require a method to more effectively secure pipe fittings and ensure their levelness and parallelism. This application is proposed based on this need, aiming to solve the shortcomings of existing technologies through innovative design, improve welding quality and efficiency, and reduce production costs. Summary of the Invention

[0005] The purpose of this utility model is to provide a pipe welding fixture that can fix the pipeline and ensure the parallelism of the pipeline.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pipe welding fixture, comprising an upper steel plate and a lower steel plate, wherein the upper steel plate and the lower steel plate are connected and form a channel for clamping pipe fittings, one end of the upper steel plate is hinged to one end of the lower steel plate, and the other end of the upper steel plate is detachably connected to the other end of the lower steel plate, wherein the upper steel plate is provided with a level, and both the upper steel plate and the lower steel plate are provided with through grooves, wherein multiple rubber strips are provided in the channel, and the multiple rubber strips are respectively fixed to the upper steel plate and the lower steel plate.

[0007] Compared with existing technologies, the advantages of this utility model are as follows: A channel for clamping pipe fittings is formed between the upper and lower steel plates, and multiple rubber strips are installed within the channel, which are respectively fixed to the upper and lower steel plates. This design not only increases the friction between the pipe fitting and the tooling, preventing slippage, but also effectively protects the surface of the pipe fitting from damage, ensuring the stability and safety of the clamping. One end of the upper steel plate is hinged to one end of the lower steel plate, and the other end is detachably connected. This design makes the tooling easy to open and close, facilitating quick installation and disassembly of pipe fittings, improving work efficiency and reducing operation time. The upper steel plate is equipped with a level, which can monitor and adjust the level of the pipe fitting in real time during installation, ensuring that the parallelism of the pipe fitting meets the requirements. This design avoids the problem of repeated welding in traditional methods, significantly improving welding quality and efficiency. Both the upper and lower steel plates have through grooves. This design not only reduces the overall weight of the tooling but also provides greater flexibility and convenience for subsequent welding work, such as welding operations or observation of the welding process through the through grooves. Improving welding precision and efficiency: Through the above design, the pipe welding fixture of this utility model can effectively fix the pipe fittings and ensure their parallelism, thereby reducing welding defects caused by unevenness in the pipeline and improving welding precision and yield. In addition, it reduces the need for repeated on-site welding, further improving production efficiency and reducing costs.

[0008] In some embodiments of this invention, both the upper and lower steel plates are arc-shaped sheet structures, and the channel formed by the connection of the upper and lower steel plates is elliptical. The arc-shaped sheet structure design allows the upper and lower steel plates to better conform to the shape of the pipe fitting, providing a more uniform pressure distribution and ensuring a more stable clamping. The elliptical channel not only accommodates pipe fittings of different diameters but also increases the contact area, reducing the risk of damage to the pipe fitting surface and improving the safety and reliability of the clamping.

[0009] In some embodiments of this utility model, multiple rubber strips are all arc-shaped and are adhered to the upper steel sheet and the lower steel sheet. The arc-shaped rubber strip design increases the contact area with the pipe fitting, providing better friction and preventing slippage. The rubber strip material has a certain degree of elasticity and cushioning, effectively protecting the pipe fitting surface from damage and enhancing clamping stability, making it particularly suitable for applications requiring high-precision fixing.

[0010] In some embodiments of this invention, the upper steel plate is provided with two through slots, which are distributed on both sides of the level. The through slot design not only reduces the overall weight of the tooling but also provides greater flexibility and convenience for welding operations. Arranging the through slots on both sides of the level allows the operator to observe or operate through them without affecting the level's functionality, ensuring real-time monitoring and adjustment of the levelness during welding, thus improving work efficiency and welding quality.

[0011] In some embodiments of this invention, the lower steel sheet has two through slots, and the two through slots on the upper steel sheet are arranged vertically corresponding to the two through slots on the lower steel sheet. This vertically corresponding through slot design makes the tooling more flexible in use, facilitating welding operations from different angles. This design allows operators to weld or inspect through the through slots, ensuring a clear view during the welding process, convenient operation, and further improving welding efficiency and quality. Furthermore, the symmetrical layout helps maintain the overall balance and stability of the tooling.

[0012] In some embodiments of this utility model, the level is a bubble level, which is magnetically connected to the upper steel plate. The bubble level is a simple and effective tool that can intuitively display the horizontal state of the pipe fitting, facilitating quick calibration. The magnetic connection makes the level easy and quick to install and remove, requiring no additional tools and simplifying the operation. Furthermore, the magnetic connection ensures the stability of the level during use, preventing displacement due to vibration or other external forces.

[0013] In some embodiments of this utility model, the upper steel plate has a locking hole on its side end, and the lower steel plate has a rotatable locking pin connected to its side end. The locking pin is connected to a nut, and the locking pin can be rotated to engage with the locking hole. The nut, when turned, locks the upper and lower steel plates together. This locking hole and locking pin design provides a simple and reliable locking mechanism, ensuring a tight fit between the upper and lower steel plates when clamping the pipe fitting, preventing loosening. The rotatable design of the locking pin makes it easy to operate; locking or unlocking can be completed with a simple rotation. The nut design further enhances the locking effect; the tightening force can be adjusted by turning the nut, ensuring the stability and safety of the clamp, and making it suitable for various pipe fitting sizes and shapes. This design not only improves the ease of operation but also enhances the reliability and durability of the tooling. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a diagram showing the unfolded form of this utility model.

[0016] In the diagram: 1. Upper steel plate; 2. Lower steel plate; 3. Channel; 6. Level; 7. Through groove; 8. Rubber strip; 16. Clip hole; 17. Locking pin; 18. Nut. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0019] It should be noted that the terms "first" and "second" in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0020] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0021] like Figures 1-2 As shown, a pipe welding fixture includes an upper steel plate 1 and a lower steel plate 2. The upper steel plate 1 and the lower steel plate 2 are connected and form a channel 3 between them for clamping pipe fittings. One end of the upper steel plate 1 is hinged to one end of the lower steel plate 2, and the other end of the upper steel plate 1 is detachably connected to the other end of the lower steel plate 2. The upper steel plate 1 is equipped with a level 6. Both the upper steel plate 1 and the lower steel plate 2 are provided with through grooves 7. Multiple rubber strips 8 are provided in the channel 3, and the multiple rubber strips 8 are respectively fixed to the upper steel plate 1 and the lower steel plate 2.

[0022] In the above structure: a channel 3 is formed between the upper steel plate 1 and the lower steel plate 2 to clamp the pipe fitting, and multiple rubber strips 8 are installed within the channel 3, which are respectively fixed to the upper steel plate 1 and the lower steel plate 2. This design not only increases the friction between the pipe fitting and the tooling, preventing slippage, but also effectively protects the surface of the pipe fitting from damage, ensuring the stability and safety of the clamping. One end of the upper steel plate 1 is hinged to one end of the lower steel plate 2, and the other end is detachably connected. This design makes the tooling easy to open and close, facilitating quick installation and disassembly of the pipe fitting, improving work efficiency and reducing operation time. The upper steel plate 1 is equipped with a level 6, which can monitor and adjust the level of the pipe fitting in real time during installation, ensuring that the parallelism of the pipe fitting meets the requirements. This design avoids the problem of repeated welding in traditional methods, significantly improving welding quality and efficiency. Both the upper steel plate 1 and the lower steel plate 2 are provided with through grooves 7. This design not only reduces the overall weight of the tooling but also provides greater flexibility and convenience for subsequent welding work. For example, welding operations or observation of the welding process can be performed through the through grooves 7. Improved welding accuracy and efficiency: Through the above design, the pipe welding tooling of this utility model can effectively fix the pipe fittings and ensure their parallelism, thereby reducing welding defects caused by unevenness in the pipeline and improving welding accuracy and yield. Furthermore, it reduces the need for repeated on-site welding, further improving production efficiency and reducing costs.

[0023] Furthermore, both the upper steel sheet 1 and the lower steel sheet 2 have an arc-shaped sheet structure, and the channel 3 formed by the connection between the upper steel sheet 1 and the lower steel sheet 2 is elliptical.

[0024] Furthermore, multiple rubber strips 8 are all arc-shaped strips, and multiple rubber strips 8 are bonded to the upper steel sheet 1 and the lower steel sheet 2.

[0025] Furthermore, the upper steel plate 1 is provided with two through slots 7, which are distributed on both sides of the level 6.

[0026] Furthermore, the lower steel sheet 2 is provided with two through slots 7, and the two through slots 7 of the upper steel sheet 1 are arranged vertically corresponding to the two through slots 7 of the lower steel sheet 2.

[0027] Furthermore, the level 6 is a bubble level 6, and the level 6 is magnetically connected to the upper steel plate 1.

[0028] Furthermore, the upper steel plate 1 has a locking hole 16 on its side end, and the lower steel plate 2 has a rotatable locking pin 17 on its side end. The locking pin 17 is connected to a nut 18. The locking pin 17 can be locked into the locking hole 16 by rotation, and the nut 18 can be locked and fixed by screwing.

[0029] The basic principles, main features, and advantages of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe welding fixture, characterized in that: It includes an upper steel plate and a lower steel plate, the upper steel plate and the lower steel plate are connected and form a channel between them for clamping pipe fittings, one end of the upper steel plate is hinged to one end of the lower steel plate, and the other end of the upper steel plate is detachably connected to the other end of the lower steel plate. The upper steel plate is equipped with a level, and both the upper steel plate and the lower steel plate have through grooves. Multiple rubber strips are arranged in the channel, and the multiple rubber strips are respectively fixed to the upper steel plate and the lower steel plate.

2. The pipe welding fixture according to claim 1, characterized in that: Both the upper steel sheet and the lower steel sheet have an arc-shaped sheet structure, and the channel formed by the connection between the upper steel sheet and the lower steel sheet is elliptical.

3. The pipe welding fixture according to claim 2, characterized in that: The multiple rubber strips are all arc-shaped and are bonded to the upper steel sheet and the lower steel sheet.

4. The pipe welding fixture according to claim 1, characterized in that: The upper steel plate is provided with two through slots, which are distributed on both sides of the level.

5. The pipe welding fixture according to claim 4, characterized in that: The lower steel sheet has two through slots, and the two through slots of the upper steel sheet are arranged vertically corresponding to the two through slots of the lower steel sheet.

6. The pipe welding fixture according to claim 1, characterized in that: The level is a bubble level, and the level is magnetically connected to the upper steel plate.

7. The pipe welding fixture according to claim 1, characterized in that: The upper steel plate has a locking hole on its side end, and the lower steel plate has a rotatable locking pin on its side end. The locking pin is connected to a nut. The locking pin can be rotated to engage with the locking hole, and the nut can be screwed on to lock the upper steel plate and the lower steel plate together and fix them in place.