Slotted elbow welding seam convex hull shaping and opening smashing tool

Abstract

The utility model relates to a seamed bent pipe welding seam convex hull shaping and opening smashing tool which comprises a supporting sleeve, a threaded rod and a base plate, a nut is fixedly welded to the top of the supporting sleeve, the nut is matched with the threaded rod, the outer diameter of the base plate is matched with the inner diameter of a steel pipe to be shaped, the base plate is rotationally installed on the top of the threaded rod, and handles are arranged on the threaded rod and the supporting sleeve. The base plate can make close contact with the inner wall of the to-be-shaped steel pipe by rotating the threaded rod through the handle. The device is installed in a to-be-shaped pipeline and supports the to-be-shaped pipeline, and then a bump at the welding seam of the steel pipe is hammered and shaped through the hammer head, so that subsequent opening correction is facilitated, and the technical defect that the opening of the straight seam steel pipe is difficult to correct due to the fact that the welding seam of a material protrudes is overcome; the straightening rod is arranged, so that the supporting sleeve can be vertically placed along the diameter of the steel pipe, and deflection is avoided; the handle is arranged to be of a telescopic structure, so that the size can be reduced, and the handle is prevented from being hindered by the steel pipe wall when being rotated.

Description

Technical Field

[0001] This utility model relates to the field of pipe joint finishing technology, specifically to a tooling for shaping and finishing the bulge of welded bends in pipes. Background Technology

[0002] During production and transportation, steel pipes inevitably develop dents or ovals at both ends due to their own weight or external forces. End straightening improves the mechanical properties of the pipe end material, ensuring stability during secondary forming processes such as necking and flattening, and preventing cracking or shape distortion. When straightening the ends of 508x7.1mm straight seam steel pipes (24YX-348), the protrusion at the weld seam of the raw material increased the difficulty of straightening. Simultaneously, the slow back-and-forth movement of the hydraulic straightening machine hindered the increase in straightening speed. Therefore, we designed a hammering fixture to support the pipe ends, manually shaping the bulge at the weld seam to maintain roundness with the surrounding area. Utility Model Content

[0003] The purpose of this invention is to overcome the technical defects in the prior art, which make it difficult to straighten the pipe ends of straight seam steel pipes due to the protrusion at the weld seam, and to provide a tooling for shaping and hammering the protrusion at the weld seam of seamed bent pipes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a tooling for shaping and hammering the bulge of a welded pipe bend, comprising a support sleeve, a threaded rod, and a pad. A nut is fixedly welded to the top of the support sleeve, and the nut cooperates with the threaded rod. The outer diameter of the pad matches the inner diameter of the steel pipe to be shaped, and it is rotatably mounted on the top of the threaded rod. Both the threaded rod and the support sleeve are provided with handles. By rotating the threaded rod through the handles, the pad can be made to tightly contact the inner wall of the steel pipe to be shaped.

[0005] Furthermore, the height of the support sleeve is greater than the radius of the steel pipe to be shaped, and the upper and lower ends are respectively provided with a first convex ring and a second convex ring. The first convex ring is slidably connected to the support sleeve, and the second convex ring is fixed on the support sleeve. Two straightening rods are symmetrically provided on both sides of the support sleeve. The straightening rods include a first connecting rod and a second connecting rod that are hinged to each other. The ends of the first connecting rod and the second connecting rod that are far apart from each other are respectively hinged to the side walls of the first convex ring and the second convex ring.

[0006] Furthermore, the pad is available in various models to match different steel pipe models in the prior art.

[0007] Furthermore, the top of the threaded rod is provided with a spherical connector, and the bottom of the pad is provided with a spherical connecting groove. The spherical connector and the spherical connecting groove are matched and can be detachably connected.

[0008] Furthermore, the handle includes a fixed rod and a telescopic sleeve, the telescopic sleeve being sleeved on the outside of the fixed rod, and the two being slidably connected.

[0009] Furthermore, the fixed rod is provided with an anti-detachment block at one end near the telescopic sleeve, and an anti-detachment ring is provided at the end of the telescopic sleeve. The diameter of the anti-detachment block is larger than the inner diameter of the anti-detachment ring and smaller than the outer diameter of the anti-detachment ring.

[0010] The beneficial effects of this utility model are as follows: The weld seam shaping and hammering tool of this utility model is installed inside the pipe to be shaped, supports it, and then hammers and shapes the bulge at the weld seam of the steel pipe, thereby facilitating subsequent end-to-end alignment. It solves the problem caused by the bulge at the weld seam of the raw material to the end-to-end alignment work, improves the speed and quality of end-to-end alignment, and provides a strong guarantee for the smooth production of pipe fittings. The straightening rods are symmetrically provided on both sides of the support sleeve, which can straighten the support sleeve when it is placed, ensuring that the support sleeve is placed vertically and along the diameter of the steel pipe, avoiding skewness. The handle is designed as a telescopic structure, which can reduce the size and avoid the obstruction of the steel pipe wall when turning the handle. Attached Figure Description

[0011] Figure 1 This is a diagram showing the usage status of the tooling for shaping and hammering the weld seam protrusion of the welded pipe of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the tooling for shaping and hammering the weld bulge of the welded pipe of this utility model.

[0013] Figure 3 This is an exploded view of the tooling for shaping and hammering the weld bulge of the welded pipe of this utility model.

[0014] Figure 4 yes Figure 3 Enlarged view of section A;

[0015] Figure 5 yes Figure 3 Enlarged view of section B;

[0016] 1. Support sleeve; 2. Threaded rod; 3. Washer plate; 4. Nut; 5. Handle; 6. Convex ring one; 7. Convex ring two; 8. Straightening rod; 9. Connecting rod one; 10. Connecting rod two; 11. Spherical connector; 12. Spherical connecting groove; 13. Fixing rod; 14. Telescopic sleeve; 15. Anti-detachment block; 16. Anti-detachment ring. Detailed Implementation

[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] Embodiments of this utility model: such as Figure 1 , 2 As shown, a tooling for shaping and hammering the bulge of a welded pipe bend includes a support sleeve 1, a threaded rod 2, and a pad 3. A nut 4 is fixedly welded to the top of the support sleeve 1, and the nut 4 cooperates with the threaded rod 2. The outer diameter of the pad 3 matches the inner diameter of the steel pipe to be shaped, and it is rotatably mounted on the top of the threaded rod 2. Both the threaded rod 2 and the support sleeve 1 are provided with handles 5. By rotating the threaded rod 2 through the handles 5, the pad 3 can be made to tightly contact the inner wall of the steel pipe to be shaped.

[0019] With the above structure, the support sleeve 1 and threaded rod 2 are placed vertically inside the steel pipe to be shaped. Then, the pad 3 is installed on the top of the threaded rod 2. Rotating the threaded rod 2 causes the pad 3 to move upward and press against the steel pipe to be shaped. Then, the weld protrusion on the steel pipe is struck with a hammer to shape it and make it round with the surrounding area. This tooling is lightweight and portable, and can greatly improve work efficiency.

[0020] like Figure 1 , 2 As shown in Figure 3, the height of the support sleeve 1 is greater than the radius of the steel pipe to be shaped. It has a first convex ring 6 and a second convex ring 7 at its upper and lower ends, respectively. The first convex ring 6 is slidably connected to the support sleeve 1, and the second convex ring 7 is fixed on the support sleeve 1. Two straightening rods 8 are symmetrically arranged on both sides of the support sleeve 1. The straightening rod 8 includes a first connecting rod 9 and a second connecting rod 10 that are hinged to each other. The ends of the first connecting rod 9 and the second connecting rod 10 that are far apart from each other are respectively hinged to the side walls of the first convex ring 6 and the second convex ring 7.

[0021] With the above structure, after the support sleeve 1 is placed into the steel pipe to be shaped, the convex ring 6 is loosened and the two connecting rods 9 are pulled to both sides so that the bottom end of the connecting rods 9 contacts the inner wall of the steel pipe. When the two connecting rods 9 contact the inner wall of the steel pipe at the same time, it means that the support sleeve 1 is placed in a vertical position and the support sleeve 1 is located on the diameter of the steel pipe, so as to avoid the support sleeve 1 from being tilted and thus ensure the stability of the support.

[0022] The pad 3 is available in various models to match different steel pipe models in the prior art.

[0023] The above structure allows this device to be adapted to different steel pipes, thus broadening its application range.

[0024] like Figure 4 As shown, the threaded rod 2 has a spherical connector 11 at the top and a spherical connecting groove 12 at the bottom of the pad 3. The spherical connector 11 and the spherical connecting groove 12 are fitted together and can be detachably connected.

[0025] The above structure facilitates the installation and removal of the pad 3, and ensures that the threaded rod 2 and the pad 3 can rotate relative to each other; it is worth noting that... Figure 4 The pad 3 in the middle is in a transparent state.

[0026] like Figure 5 As shown, the handle 5 includes a fixed rod 13 and a telescopic sleeve 14, with the telescopic sleeve 14 sleeved on the outside of the fixed rod 13 and the two slidably connected.

[0027] The fixed rod 13 is provided with an anti-detachment block 15 at one end near the telescopic sleeve 14, and an anti-detachment ring 16 is provided at the end of the telescopic sleeve 14. The diameter of the anti-detachment block 15 is larger than the inner diameter of the anti-detachment ring 16 and smaller than the outer diameter of the anti-detachment ring 16.

[0028] The above structure allows the handle 5 to extend and retract, thus preventing the handle 5 from being obstructed by the steel pipe wall when rotating the threaded rod 2; it is worth noting that... Figure 5 The telescopic sleeve 14 in the middle is in a transparent state.

[0029] 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 process, method, article, or apparatus.

[0030] 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.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A seamed elbow weld bulge shaping swage, characterized by: The device includes a support sleeve (1), a threaded rod (2), and a pad (3). A nut (4) is fixedly welded to the top of the support sleeve (1). The nut (4) and the threaded rod (2) cooperate with each other. The outer diameter of the pad (3) matches the inner diameter of the steel pipe to be shaped. It is rotatably mounted on the top of the threaded rod (2). Both the threaded rod (2) and the support sleeve (1) are provided with handles (5). By rotating the threaded rod (2) through the handles (5), the pad (3) can be made to closely contact the inner wall of the steel pipe to be shaped.

2. A seamed elbow weld crown shaping swage as defined in claim 1 wherein: The height of the support sleeve (1) is greater than the radius of the steel pipe to be shaped. It has a convex ring one (6) and a convex ring two (7) at its upper and lower ends respectively. The convex ring one (6) is slidably connected to the support sleeve (1), and the convex ring two (7) is fixed on the support sleeve (1). The support sleeve (1) has two straightening rods (8) symmetrically arranged on both sides. The straightening rod (8) includes a connecting rod one (9) and a connecting rod two (10) that are hinged to each other. The ends of the connecting rod one (9) and the connecting rod two (10) that are far apart from each other are hinged to the side walls of the convex ring one (6) and the convex ring two (7) respectively.

3. A seamed elbow weld crown shaping swage as defined in claim 1 wherein: The pad (3) is available in various models, which are matched with different steel pipe models in the prior art.

4. A seamed elbow weld crown shaping swage as defined in claim 3 wherein: The threaded rod (2) is provided with a spherical connector (11) at the top and a spherical connecting groove (12) at the bottom of the pad (3). The spherical connector (11) and the spherical connecting groove (12) are matched and can be detachably connected.

5. A seamed elbow weld crown shaping swage as defined in claim 1 wherein: The handle (5) includes a fixed rod (13) and a telescopic sleeve (14), the telescopic sleeve (14) being sleeved on the outside of the fixed rod (13), and the two are slidably connected.

6. The tooling for shaping and hammering the bulge of a welded pipe bend according to claim 5, characterized in that: The fixed rod (13) is provided with an anti-detachment block (15) at one end near the telescopic sleeve (14), and an anti-detachment ring (16) is provided at the end of the telescopic sleeve (14). The diameter of the anti-detachment block (15) is larger than the inner diameter of the anti-detachment ring (16) and smaller than the outer diameter of the anti-detachment ring (16).

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