Auxiliary positioning tool for welding flanges at different angles on pipeline
By designing an auxiliary positioning tool for welding flanges of different angles in pipelines, using push bolts and steering bolts to achieve accurate positioning of flanges and pipelines, the problem that existing positioning tool is difficult to accurately locate flanges of different angles is improved Welding efficiency and product quality.
Patent Information
- Application Number
- CN202421213543.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing positioning tooling is difficult to accurately locate pipe flanges of different angles, resulting in welding deviations, affecting the welding effect, and requires frequent cutting and repair welding, reducing processing efficiency and product aesthetics.
An auxiliary positioning tool is designed, including an adjustment plate, a curved flange positioning plate and an angle adjustment mechanism. The inclination angle of the flange is adjusted by pushing bolts and the horizontal angle of the steering bolts are adjusted to achieve accurate positioning of flanges of different angles. .
It improves construction efficiency, reduces the workload of on-site cutting, rewelding and repair, and ensures the aesthetics of processed products and welding quality.
Smart Images
Figure CN222471331U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of flange welding, in particular to an auxiliary positioning tool used for welding flanges at different angles in pipelines. Background Art
[0002] Pipelines are parts used to transport gas, liquid or fluid with solid particles. Pipes are divided into straight pipes and bent pipes. Bends are mainly used for connections at the corners of pipes. Generally, in order to facilitate the installation of pipes, flanges are welded at both ends of the bent and straight pipes to facilitate the later disassembly and maintenance of the pipes.
[0003] In order to ensure the accuracy of flange installation, before welding the pipe and the flange, it is necessary to align the pipe and the flange first to avoid welding deviation and affect the welding effect; according to the current technical level of automatic pipe welding machines, it is very difficult to dock the flange surfaces, and the existing positioning tooling can basically only be used for flange welding positioning of straight pipes. For pipe flange welding at different angles and welding of some inclined flanges, there will be problems of inaccurate positioning, and some even cannot achieve positioning work; it is often necessary to cut the pipe on site to make it meet the flange welding, or due to inaccurate positioning during the welding process, it is necessary to perform repeated work of welding and repair, which reduces the processing efficiency and results in poor aesthetics of the processed products. Summary of the invention
[0004] The utility model addresses the deficiencies of the prior art and provides an auxiliary tooling for welding flanges at different angles in pipelines. The auxiliary tooling can assist in positioning flange welding at different angles. During the positioning process, the push bolts can be used to adjust the inclination angle of the flange to meet the control of different inclined surfaces. By adjusting the steering bolts, the control of different horizontal angles can be met, thereby improving construction efficiency.
[0005] In order to achieve the above-mentioned technical objectives, the utility model provides an auxiliary positioning tool for welding flanges at different angles in pipelines, the auxiliary positioning tool comprising an adjusting plate, a first flange positioning plate and a second flange positioning plate are respectively provided at both ends of the telescopic adjusting plate, the first flange positioning plate and the second flange positioning plate are both arc-shaped positioning plates, and positioning holes corresponding to the flanges to be installed are provided on the flange positioning plates; the first flange positioning plate is fixedly connected to the end of the adjusting plate, and the plate surface of the first flange positioning plate is perpendicular to the plate surface of the adjusting plate; the second flange positioning plate is connected to the adjusting plate by a hinge component, and an angle adjustment mechanism is provided between the adjusting plate and the second flange positioning plate, and the second flange positioning plate is parallel to the first flange positioning plate when no adjustment is performed.
[0006] The better technical solution of the utility model is as follows: the adjustment plate includes a first plate body fixedly connected to the first flange positioning plate, and a second plate body hingedly connected to the second flange positioning plate, the first plate body and the second plate body are sleeved with each other, one end of the sleeved part is connected by a rotating bolt, and the other end is connected by a pipe angle adjustment bolt, and when the pipe angle adjustment bolt is loosened, the two plate bodies rotate along the rotating bolt to adjust the angle between the two plate bodies.
[0007] A better technical solution of the utility model: the angle adjustment mechanism includes a bolt adjustment sleeve fixed on the adjustment plate and a push bolt threadedly connected to the bolt adjustment sleeve, the end of the push bolt contacts the plate surface of the second flange positioning plate adjacent to the adjustment plate, and the second flange positioning plate is pushed to rotate along the hinge component by the push bolt.
[0008] A better technical solution of the utility model: the curvature of the first flange positioning plate and the second flange positioning plate matches the pipeline to which the flange is to be welded.
[0009] A better technical solution of the utility model: the first flange positioning plate and the second flange positioning plate are symmetrically arranged at two ends of the adjustment plate, and the adjustment plate is located on the midline of the two flange positioning plates.
[0010] A more optimal technical solution of the utility model: the angle adjustment mechanism controls the second flange positioning plate to rotate ±80° along the hinge component.
[0011] A more preferred technical solution of the utility model is that adjustment handles are respectively provided on the first plate body and the second plate body away from the contact surface with the outer wall of the pipeline of the flange to be welded.
[0012] A better technical solution of the utility model is that the rotation angle of the first plate body and the second plate body is controlled within a range of 0 to 45 degrees.
[0013] The utility model uses the push bolts to adjust the inclination angle of the flange during the auxiliary positioning process to meet the control of different inclined surfaces, and the steering bolts are adjusted to meet the control of different horizontal angles, thereby improving the construction efficiency; the tooling can simultaneously meet the two functions of flange inclination adjustment and pipeline angle adjustment.
[0014] The utility model solves the problem of controlling the positioning accuracy during the welding operation of flanges and pipe segments with different curvatures and inclinations during pipeline layout, and can realize the flange welding positioning of pipes at different angles. Through the cooperation of the tooling and the automatic pipe welding machine, the construction efficiency can be effectively improved, the cost can be reduced, the repetitive work of continuous cutting, patch welding and repair on site can be reduced, the processing efficiency can be improved, and the aesthetics of the processed products can be ensured at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 , Figure 2It is a schematic diagram of the structure of the utility model at different angles;
[0016] Figure 3 It is a plan schematic diagram of the utility model;
[0017] Figure 4 This is a schematic diagram of the pipeline angle adjustment state of the utility model;
[0018] Figure 5 This is a schematic diagram of the flange tilt adjustment of the utility model;
[0019] Figure 6 This is a diagram of the use state of the utility model auxiliary straight pipe 90 degree flange welding;
[0020] Figure 7 This is a diagram of the use state of the utility model for assisting straight pipe inclined flange welding;
[0021] Figure 8 This is a usage diagram of the auxiliary elbow flange welding of the utility model.
[0022] In the figure: 1—first flange positioning plate, 400—first plate body, 401—second plate body, 402—pipe angle adjustment bolt, 2—second flange positioning plate, 3—positioning hole, 4—adjustment plate, 400—first plate body, 401—second plate body, 402—pipe angle adjustment bolt, 403—rotation bolt, 5—hinge component, 6—angle adjustment mechanism, 600—bolt adjustment sleeve, 601—thrust bolt, 7—pipe, 8—adjustment handle, 9—flange to be installed. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Figures 1 to 8 The drawings are all of embodiments, which are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiments of the utility model. The following technical solutions shown in the drawings are specific solutions of the embodiments of the utility model and are not intended to limit the scope of the utility model to be protected. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0025] An auxiliary positioning tool for welding flanges at different angles in a pipeline is provided in an embodiment, such as Figures 1 to 3 As shown, the auxiliary positioning tooling includes an adjustment plate 4, and a first flange positioning plate 1 and a second flange positioning plate 2 are symmetrically provided at both ends of the telescopic adjustment plate, the first flange positioning plate 1 and the second flange positioning plate 2 are both arc-shaped positioning plates, and a positioning hole 3 corresponding to the flange 9 to be installed is opened on the flange positioning plate 2; the curvature of the first flange positioning plate 1 and the second flange positioning plate 2 matches the pipe 7 to which the flange is to be welded, and the adjustment plate 4 is located on the midline of the two flange positioning plates, and when in use, the inner annular surfaces of the first flange positioning plate 1 and the second flange positioning plate 2 can both be in close contact with the outer wall of the pipe 7. The adjustment plate 4 includes a first plate body 400 fixedly connected to the first flange positioning plate 1, and a second plate body 401 hingedly connected to the second flange positioning plate 2, the first plate body 400 and the second plate body 401 are sleeved with each other, one end of the sleeved part is connected by a rotating bolt 403, and the other end is connected by a pipe angle adjustment bolt 402, and when the pipe angle adjustment bolt 402 is loosened, as shown Figure 4 As shown, the two plates are rotated along the rotating bolt 403 to adjust the angle between the two plates. The rotation angle of the first plate 400 and the second plate 401 is between 0 and 45 degrees. Adjustment handles 8 are respectively provided on the first plate 400 and the second plate 401 away from the contact surface of the outer wall of the pipe 7 to be welded with the flange.
[0026] An auxiliary positioning tool for welding flanges at different angles in a pipeline is provided in an embodiment, such as Figures 1 to 3As shown, the first flange positioning plate 1 is fixedly connected to the end of the adjustment plate 4, and the plate surface of the first flange positioning plate 1 is perpendicular to the plate surface of the adjustment plate 4; the second flange positioning plate 2 is connected to the adjustment plate 4 through a hinge component 5, and an angle adjustment mechanism 6 is provided between the adjustment plate 4 and the second flange positioning plate 2, and the second flange positioning plate 2 is parallel to the first flange positioning plate 1 when no adjustment is performed. The angle adjustment mechanism 6 includes a bolt adjustment sleeve 600 fixed to the adjustment plate 4 and a push bolt 601 threadedly connected to the bolt adjustment sleeve 600, the end of the push bolt 601 contacts the plate surface of the second flange positioning plate 2 adjacent to the adjustment plate 4, and the second flange positioning plate 2 is pushed to rotate along the hinge component 5 through the push bolt 601; the angle adjustment mechanism 6 controls the second flange positioning plate 2 to rotate ±80° along the hinge component 5, as shown in FIG. Figure 5 and Figure 7 shown.
[0027] The utility model uses the push bolts to adjust the inclination angle of the flange during the auxiliary positioning process to meet the control of different inclined surfaces, and the steering bolts are adjusted to meet the control of different horizontal angles, thereby improving the construction efficiency; the tooling can simultaneously meet the two functions of flange inclination adjustment and pipeline angle adjustment.
[0028] The first flange positioning plate 1 at one end of the adjusting plate 4 of the auxiliary positioning fixture in the embodiment is fixedly connected to the first plate body 400 at 90 degrees, and this end can be directly used for welding the positioning straight pipe and the flange. Figure 6 As shown, the utility model is installed at the flange welding end of the straight pipe, and the inner rings of the two flange positioning plates are pressed against the surface of the straight pipe. At this time, the adjustment plate 4 is parallel to the pipeline, and the outer arc-shaped plate surface of the first flange positioning plate 1 is flush with the end face of the straight pipe. At this time, the vertically arranged first flange positioning plate 1 is in a vertical state with the straight pipe. The flange 9 to be installed is pressed against the first flange positioning plate 1 to ensure that the flange 9 to be installed and the pipeline 7 are also 90 degrees. Then, the flange 9 to be installed is fixed to the first flange positioning plate 1 by positioning bolts, and then the inner ring of the flange 9 to be installed is welded to the end face of the straight pipe by a welding mechanism.
[0029] In the embodiment, the second flange positioning plate 2 at the other end of the adjusting plate 4 of the auxiliary positioning fixture is connected to the second plate body 401 through a hinge member 5. The second flange positioning plate 2 can rotate up and down by ±80° along the hinge member 5, and a push bolt 601 is provided at the connection part. The design of this part is mainly used for flange installation and positioning of the inclined surface of the pipeline. When used specifically, Figure 7As shown, the device is installed at the end of the inclined surface of the pipeline, and the inner ring surface of the first flange positioning plate 1 is closely attached to the outer wall of the pipeline 7, and then the angle of the second flange positioning plate 2 is adjusted according to the inclination angle of the inclined end surface of the pipeline 7. During the adjustment process, a scale or an angle ruler can be used to assist in the adjustment to ensure that the inclination angle of the second flange positioning plate 2 is consistent with the inclination angle of the inclined end surface of the pipeline 7; during the specific adjustment process, the push bolt 601 is used for adjustment, and the push bolt 601 can be extended or shortened to adjust the inclination angle of the second flange positioning plate 2. One or more push bolts 601 can be set, and the specific design is based on the requirements. Only one is shown in the attached figure. After adjusting the angle of the second flange positioning plate 2, the flange 9 to be installed is closely attached to the second flange positioning plate 2, and the flange 9 to be installed is completely connected with the inclined end surface of the pipeline 7, and then the flange 9 to be installed is fixed and locked with the second flange positioning plate 2 by the positioning bolts, and the inner ring of the flange 9 to be installed is welded to the end surface of the pipeline by the welding mechanism.
[0030] In the embodiment, the adjusting plate 4 of the auxiliary positioning tool is arranged in two sections, and as Figure 4 As shown, the angle between the two sections can be adjusted. The design purpose of this part is mainly to adapt it to the flange welding at the end of the elbow. When it is used specifically, Figure 8 As shown, first place the device at the end of the elbow where the flange is to be installed. If the flange installed at the end of the elbow is vertical to the pipeline, the first flange positioning plate 1 at the fixed end can be used directly. If the flange installed at the end of the elbow is an inclined surface, the second flange positioning plate 2 is used. The angle adjustment of the second flange positioning plate 2 is the same as the above-mentioned positioning adjustment of the inclined surface of the pipeline. After the flange positioning plate is selected, loosen the pipe angle adjustment bolt 402, and rotate the first plate body 400 and the second plate body 401 by adjusting the handle 8 so that their angles meet the bending angle of the elbow. Since the maximum bending angle of the elbow is 45°, the design of this part can fully meet the curvature adjustment. After adjustment, it can be fixed and locked by the pipe angle adjustment bolt 402. The adjusted angle adjustment plate 4 is parallel to the outer wall of the elbow. If the second flange positioning plate 2 is used for positioning, the inclination angle of the second flange positioning plate 2 needs to be adjusted to ensure that the second flange positioning plate 2 and the end face of the elbow mounting flange are on the same plane. Then, the flange positioning plate and the flange 9 to be installed are fixedly connected by the positioning bolts, and the inner ring of the flange 9 to be installed can be welded to the end face of the elbow using a welding mechanism.
[0031] After the auxiliary tooling of the utility model is applied in the project, the workload of welders is greatly reduced, especially the simulation of pipe cutting control lines with different inclination angles. Operators can quickly draw lines according to the set angles, reducing the time from the original 30 minutes to 3 minutes; the 90° positioning of the flange is reduced from the original 10 minutes to 5 minutes; the difficulty of positioning welding operations of the pipe welding machine is eliminated, the helping effect is extremely strong, and the work efficiency is improved by 60%.
[0032] The above is only one embodiment of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.
Claims
1. An auxiliary positioning tool for welding flanges at different angles in pipelines, characterized by: The auxiliary positioning tool comprises an adjustment plate (4), and a first flange positioning plate (1) and a second flange positioning plate (2) are respectively provided at both ends of the telescopic adjustment plate, the first flange positioning plate (1) and the second flange positioning plate (2) are both arc-shaped positioning plates, and a positioning hole (3) corresponding to the flange (9) to be installed is opened on the flange positioning plate (2); the first flange positioning plate (1) is fixedly connected to the end of the adjustment plate (4), and the plate surface of the first flange positioning plate (1) is perpendicular to the plate surface of the adjustment plate (4); the second flange positioning plate (2) is connected to the adjustment plate (4) by a hinge component (5), and an angle adjustment mechanism (6) is provided between the adjustment plate (4) and the second flange positioning plate (2), and the second flange positioning plate (2) is parallel to the first flange positioning plate (1) when no adjustment is performed.
2. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 1, characterized in that: The adjustment plate (4) comprises a first plate body (400) fixedly connected to the first flange positioning plate (1), and a second plate body (401) hingedly connected to the second flange positioning plate (2); the first plate body (400) and the second plate body (401) are sleeved together, one end of the sleeved part is connected by a rotating bolt (403), and the other end is connected by a pipeline angle adjustment bolt (402); and when the pipeline angle adjustment bolt (402) is loosened, the two plate bodies are rotated along the rotating bolt (403) to adjust the angle between the two plate bodies.
3. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 1 or 2, characterized in that: The angle adjustment mechanism (6) comprises a bolt adjustment sleeve (600) fixed on the adjustment plate (4) and a push bolt (601) threadedly connected to the bolt adjustment sleeve (600), the end of the push bolt (601) contacts the plate surface of the second flange positioning plate (2) adjacent to the adjustment plate (4), and the push bolt (601) pushes the second flange positioning plate (2) to rotate along the hinge component (5).
4. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 1 or 2, characterized in that: The curvatures of the first flange positioning plate (1) and the second flange positioning plate (2) match the pipe (7) to which the flange is to be welded.
5. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 1 or 2, characterized in that: The first flange positioning plate (1) and the second flange positioning plate (2) are symmetrically arranged at two ends of the adjustment plate (4), and the adjustment plate (4) is located on the midline between the two flange positioning plates.
6. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 1 or 2, characterized in that: The angle adjustment mechanism (6) controls the second flange positioning plate (2) to rotate along the hinge component (5) within ±80°.
7. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 2, characterized in that: Adjustment handles (8) are respectively provided on the first plate body (400) and the second plate body (401) away from the contact surface with the outer wall of the pipeline (7) to which the flange is to be welded.
8. The auxiliary positioning tool for welding flanges at different angles in pipelines according to claim 2, characterized in that: The rotation angle of the first plate body (400) and the second plate body (401) is controlled within a range of 0 to 45 degrees.