Pipe fitting welding opposite seam positioning tool
By designing a positioning fixture for pipe welding seams, and utilizing an adjustable clamping body and a clamping block lifting structure, the problem of insufficient positioning accuracy in pipe welding was solved, achieving efficient and stable welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-10
AI Technical Summary
In the existing technology, it is difficult to guarantee the positioning accuracy of the seam during the pipe welding process, resulting in low welding quality and efficiency, and it relies on manual operation, which is time-consuming and labor-intensive.
A pipe fitting welding seam positioning fixture was designed, including a pipe fitting positioning seat and a seam clamp. It adopts an adjustable clamp body and a clamping block lifting structure, which can adapt to pipe fittings of different specifications and sizes. The clamping block limiting structure and anti-slip pad ensure the accuracy and stability of positioning.
It improved the positioning accuracy and stability of pipe welding, enhanced the versatility and practicality of tooling, and improved welding quality and efficiency.
Smart Images

Figure CN223981410U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fitting processing technology, specifically to a pipe fitting welding seam positioning tool. Background Technology
[0002] In existing technologies, the positioning accuracy of the weld seam directly affects the welding quality and efficiency during pipe fitting welding. Traditional methods for positioning the weld seam in pipe fitting welding often rely on manual operation, which is not only time-consuming and labor-intensive, but also makes it difficult to guarantee positioning accuracy. Summary of the Invention
[0003] In view of this, the present invention provides a tooling for positioning the weld seam of pipe fittings.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A pipe fitting welding seam positioning fixture includes a pipe fitting positioning seat and a seam clamp. The pipe fitting positioning seat has a pipe fitting positioning groove at its center along its length. The seam clamp includes two adjustable clamping bodies symmetrically arranged on both sides of the pipe fitting positioning groove. Each adjustable clamping body includes a clamping block and a clamping block support. The clamping block is movably mounted on the clamping block support. The clamping block support is movably mounted on the pipe fitting positioning seat along its width. The pipe fitting to be welded is placed in the pipe fitting positioning groove, and the clamping block clamps and fixes the pipe fitting to be welded.
[0006] Preferably, the pipe fitting positioning seat has a central protrusion forming a pipe fitting positioning part, and the pipe fitting positioning part has clamp movable parts on both sides. The pipe fitting positioning groove is formed on the pipe fitting positioning part. The adjustable clamps are symmetrically arranged on the clamp movable parts on both sides of the pipe fitting positioning part. The clamp movable parts are provided with clamp sliding grooves. The clamping block support is movably arranged in the clamp sliding groove. The clamp movable parts are provided with clamping block limiting structures, and the clamping block limiting structures limit the movement of the clamping block support.
[0007] Preferably, a clamping block lifting groove is formed on the side of the clamping block bracket near the pipe positioning groove along the height direction of the clamping block bracket, and the clamping block has a lifting connection end, which extends into the clamping block lifting groove and connects with the clamping block bracket.
[0008] Preferably, the clamping block bracket has a support part and an adjustment part. The adjustment part is located on the top of the support part, and the clamping block lifting groove is opened on the adjustment part. The bottom end of the adjustment part is opened with a lifting screw hole that communicates with the clamping block lifting groove. A lifting screw is installed in the lifting screw hole, and one end of the lifting screw extends into the clamping block lifting groove and connects with the lifting connection end.
[0009] Preferably, the clamping block has an inclined surface that connects with the pipe to be welded, and an anti-slip pad is provided on the inclined surface.
[0010] Preferably, the clamping block limiting structure is a limiting screw, and a sliding screw hole communicating with the outside of the clamping block sliding groove is opened on the side wall of the clamping block sliding groove away from the pipe positioning part. One end of the limiting screw passes through the sliding screw hole and extends into the clamping block sliding groove to connect with the bottom of the clamping block bracket.
[0011] Preferably, the anti-slip pad is bonded and fixed to the inclined surface, and the anti-slip pad is made of rubber.
[0012] The beneficial effects of this utility model are as follows: By setting a joint clamp on the pipe fitting positioning seat, the pipe fitting to be welded can be precisely positioned, ensuring the accuracy and stability of the joint. The adjustable clamp allows the tooling to adapt to pipe fittings of different specifications and sizes, enhancing the tooling's versatility and practicality. The design of clamp lifting and clamp support movement allows the clamp to be flexibly adjusted to adapt to different shapes and positional requirements of the pipe fittings, further improving welding quality and efficiency. 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] Appendix Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0015] 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.
[0016] The present invention will now be further described with reference to the accompanying drawings.
[0017] This utility model provides the following technical solution:
[0018] As attached Figure 1As shown, this utility model discloses a pipe fitting welding seam positioning fixture, including a pipe fitting positioning seat 1 and a seam clamping fixture 2. The pipe fitting positioning seat 1 has a pipe fitting positioning groove 3 formed at its center along its length. The seam clamping fixture 2 includes two adjustable clamping bodies 4 symmetrically arranged on both sides of the pipe fitting positioning groove 3. Each adjustable clamping body 4 includes a clamping block 5 and a clamping block support 6. The clamping block 5 is movably mounted on the clamping block support 6, and the clamping block support 6 is movably mounted on the pipe fitting positioning seat 1 along its width. A pipe fitting 7 to be welded is placed in the pipe fitting positioning groove 3, and the clamping block 5 clamps and fixes the pipe fitting 7 to be welded. Specifically, in this design, by setting the seam clamping fixture 2 on the pipe fitting positioning seat 1, the pipe fitting 7 to be welded can be accurately positioned, ensuring the accuracy and stability of the pipe fitting seam. The adjustable clamping bodies 4 allow the fixture to adapt to pipe fittings of different specifications and sizes, enhancing the fixture's versatility and practicality. The design of lifting clamp 5 and moving clamp support 6 allows clamp 5 to be flexibly adjusted to adapt to different shapes and positional requirements of pipe fittings, further improving welding quality and efficiency.
[0019] Furthermore, the pipe fitting positioning seat 1 has a centrally protruding pipe fitting positioning part 8. The pipe fitting positioning part 8 has clamping movable parts 9 on both sides. The pipe fitting positioning groove 3 is formed on the pipe fitting positioning part 8. Adjustable clamps are symmetrically arranged on the clamping movable parts 9 on both sides of the pipe fitting positioning part 8. Clamping grooves 10 are formed on the clamping movable parts 9. The clamping block support 6 is movably arranged within the clamping groove 10. A clamping block limiting structure 11 is provided on the clamping movable part 9, which limits the movement of the clamping block support 6. Specifically, in this embodiment, the height of the pipe fitting positioning part 8 is higher than the height of the clamping movable part 9, so that the pipe fitting positioning groove 3 is in a relatively high position, facilitating the insertion and removal of pipe fittings, and also facilitating welding operations. The design of the clamping movable part 9 allows the adjustable clamping body 4 to move flexibly in the width direction of the pipe fitting positioning seat 1 to accommodate pipe fittings of different sizes. The clamp groove 10 allows the clamp support 6 to slide smoothly on the clamp movable part 9, ensuring that the clamp 5 can be accurately aligned with the pipe fitting. The clamp limiting structure 11 limits the movement of the clamp support 6, preventing it from exceeding the predetermined range during movement, thereby ensuring that the clamp 5 can stably clamp the pipe fitting and improving the accuracy and stability of welding.
[0020] Furthermore, a clamping block lifting groove 12 is formed along the height direction of the clamping block support 6 on the side near the pipe positioning groove 3. The clamping block 5 has a lifting connection end 13, which extends into the clamping block lifting groove 12 and connects to the clamping block support 6. Specifically, in this embodiment, the design of the clamping block lifting groove 12 enables the clamping block 5 to move up and down on the clamping block support 6, which greatly enhances the flexibility of the tooling in clamping and fixing the pipe fitting. The connection between the lifting connection end 13 and the clamping block support 6 is stable and reliable, ensuring that the clamping block 5 will not shake or fall off during the lifting process, thereby ensuring the stability and safety of the pipe fitting during the welding process. By adjusting the height of the clamping block 5, it can adapt to pipe fittings of different diameters or shapes, making the application range of the tooling wider. In addition, the cooperation between the clamping block lifting groove 12 and the lifting connection end 13 also makes the adjustment process of the clamping block 5 simpler and faster, improving work efficiency.
[0021] Furthermore, the clamping block bracket 6 has a support portion 14 and an adjustment portion 15. The adjustment portion 15 is located on the top of the support portion 14, and the clamping block lifting groove 12 is formed on the adjustment portion 15. A lifting screw hole 16 communicating with the clamping block lifting groove 12 is formed at the bottom of the adjustment portion 15. A lifting screw 17 is installed in the lifting screw hole 16, and one end of the lifting screw 17 extends into the clamping block lifting groove 12 and connects to the lifting connection end 13. Specifically, in this embodiment, the design of the adjustment portion 15 makes the structure of the clamping block bracket 6 more reasonable, enabling both the clamping block 5 to achieve lifting movement and flexible movement in the width direction of the pipe fitting positioning seat 1. The lifting screw hole 16 and the lifting screw 17 provide a simple and effective adjustment method. By rotating the lifting screw 17, the height of the clamping block 5 can be precisely adjusted to accommodate pipe fittings of different specifications. This adjustment method is not only easy to operate but also has high adjustment accuracy, ensuring the stability and accuracy of the pipe fittings during the welding process. In addition, the connection between the lifting screw 17 and the lifting connection end 13 is stable and reliable, and can withstand a large clamping force, ensuring that the pipe fitting will not shake or fall off during the welding process, thereby improving the welding quality and efficiency.
[0022] Furthermore, the clamping block 5 has an inclined surface 18 that contacts the pipe fitting 7 to be welded, and an anti-slip pad 19 is provided on the inclined surface 18. Specifically, in this embodiment, the design of the inclined surface 18 allows the clamping block 5 to better fit the outer surface of the pipe fitting, increasing the contact area between the clamping block 5 and the pipe fitting, thereby improving the clamping effect. The anti-slip pad 19 further enhances the friction between the clamping block 5 and the pipe fitting, preventing the pipe fitting from sliding or falling off during the welding process due to thermal expansion or other external forces. This design not only improves the stability and safety of the tooling but also helps to ensure welding quality and efficiency. At the same time, the combined use of the inclined surface 18 and the anti-slip pad 19 allows the tooling to be more widely adapted to pipe fittings of different materials and shapes, further improving the versatility and practicality of the tooling.
[0023] Furthermore, the clamping block limiting structure 11 is a limiting screw. A sliding screw hole 20, communicating with the outside of the clamping block 5's sliding groove, is opened on the side wall of the groove away from the pipe positioning part 8. One end of the limiting screw passes through the sliding screw hole 20 and extends into the clamping block 5's sliding groove to connect with the bottom of the clamping block support 6. Specifically, in this embodiment, by rotating the limiting screw, the position of the clamping block support 6 within the clamping groove 10 can be precisely adjusted, thereby achieving precise control over the movement range of the clamping block 5. This limiting method is not only easy to operate but also has high limiting accuracy, ensuring that the clamping block 5 remains stable when clamping the pipe, preventing the pipe from loosening or falling off due to the clamping block support 6 moving beyond the predetermined range. Simultaneously, the connection between the limiting screw and the clamping block support 6 is robust and reliable, capable of withstanding large clamping forces, ensuring the stability and safety of the tooling during use. In addition, the sliding screw hole 20 allows for easy installation and removal of the limiting screw, facilitating adjustment and maintenance by the user according to actual needs, further improving the practicality and convenience of the tooling.
[0024] Furthermore, the anti-slip pad 19 is adhered and fixed to the inclined surface 18, and the anti-slip pad 19 is made of rubber. Specifically, in this embodiment, the rubber anti-slip pad 19 has good elasticity and friction, which can effectively prevent the pipe fitting from sliding or falling off during the welding process. At the same time, the rubber material also has a certain degree of heat resistance, which can withstand high temperatures during the welding process without deformation or damage, thereby ensuring the stability and safety of the tooling. The adhesion and fixing method between the anti-slip pad 19 and the inclined surface 18 is simple and effective, ensuring that the anti-slip pad 19 will not fall off or shift during use, thereby ensuring the clamping effect of the tooling on the pipe fitting.
[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A pipe welding butt joint positioning tool, characterized by: The utility model provides a pipe positioning seat and a pair of seam clamp, the pipe positioning seat is provided with a pipe positioning groove in the center along the length direction of the pipe positioning seat, the pair of seam clamp is provided with two adjustable clamping bodies on both sides of the pipe positioning groove, the adjustable clamping body is provided with a clamping block and a clamping block support, the clamping block is arranged on the clamping block support in a lifting mode, and the clamping block support is movably arranged on the pipe positioning seat along the width direction of the pipe positioning seat, the pipe positioning groove is arranged with a pipe to be welded, and the clamping block is used for clamping and fixing the pipe to be welded.
2. The pipe welding butt joint positioning fixture of claim 1, wherein: The pipe positioning seat is provided with a pipe positioning part in the center, the pipe positioning part is provided with a clamp movable part on both sides, the pipe positioning groove is arranged on the pipe positioning part, the adjustable clamp is arranged on the clamp movable part on both sides of the pipe positioning part, the clamp movable part is provided with a clamp sliding groove, the clamping block support is movably arranged in the clamp sliding groove, and the clamp movable part is provided with a clamping block limiting structure.
3. The pipe welding butt joint positioning fixture of claim 1, wherein: The clamping block support is provided with a clamping block lifting groove on one side close to the pipe positioning groove along the height direction of the clamping block support, the clamping block is provided with a lifting connecting end, and the lifting connecting end is connected with the clamping block support by extending into the clamping block lifting groove.
4. The pipe welding butt joint positioning fixture of claim 3, wherein: The clamping block support is provided with a supporting part and an adjusting part, the adjusting part is arranged on the top of the supporting part, the clamping block lifting groove is arranged on the adjusting part, the adjusting part is provided with a lifting screw hole communicated with the clamping block lifting groove at the bottom end, a lifting screw is arranged in the lifting screw hole, and one end of the lifting screw is connected with the lifting connecting end by extending into the clamping block lifting groove.
5. The pipe welding butt joint positioning fixture of claim 1, wherein: The clamping block is provided with an inclined surface connected with the pipe to be welded, and an antiskid pad is arranged on the inclined surface.
6. The pipe welding butt joint positioning fixture of claim 2, wherein: The clamping block limiting structure is a limiting screw, the clamping block sliding groove is provided with a sliding screw hole communicated with the outside of the clamping block sliding groove on the groove wall away from the pipe positioning part, and one end of the limiting screw is connected with the bottom of the clamping block support by extending into the clamping block sliding groove through the sliding screw hole.
7. The pipe welding butt joint positioning fixture of claim 5, wherein: The antiskid pad is fixedly connected with the inclined surface, and the antiskid pad is made of rubber.