CN218800144U - Pipeline flange plate welding positioning device - Google Patents

Abstract

The application discloses pipeline flange dish welding position device, through both ends face coplane and with wait to weld two limiting plates of flange dish pipeline vertically, inject the welded position and the straightness that hangs down of ring flange, the technical problem that the flange welding is efficient and the straightness that hangs down receives the human factor influence among the prior art is solved in the preparation. The device mainly comprises two limiting parts which are clamped at two sides of the outer edge of the pipeline of the flange plate to be welded, a connecting piece which is used for connecting the two limiting parts, and a lifting handle which is arranged at the top of the connecting piece; the connecting pieces are correspondingly connected to the corresponding positions at the upper parts of the two limiting pieces; the two limiting parts are used for being attached to the two end faces of the flange plate to be welded in a coplanar mode. The device has the advantages of simple structure, low manufacturing cost, accurate positioning, labor saving and the like.

Description

Pipeline flange plate welding positioning device

Technical Field

The application relates to the technical field of flange plate welding, in particular to a pipeline flange plate welding and positioning device.

Background

The flange is a disc-shaped part with a plurality of bolt holes in a circumferential array, and is common in pipeline engineering. The flanges are used in pairs, and in pipeline engineering, the flanges are mainly used for connecting pipelines, a flange plate is arranged at the end of each pipeline needing to be connected, bolt holes of the two flange plates are aligned during connection, and the flanges are fixedly connected by bolts.

A large number of steel pipelines exist under a mine and are respectively used as a pressure water pipe and a pressure air pipe, because the pipeline laying length is long, a plurality of pipelines are required to be communicated in sequence, and when pipelines need to be extended or old pipelines need to be replaced, the pipelines need to be connected and used by welding flanges at two ends of a steel pipe for ensuring the connection reliability between the pipelines.

However, the cut of the port of the steel pipe may be crooked when leaving the factory, and in addition, the influence of human factors of welding personnel in the welding process can lead to the welding to be accomplished the back steel pipe and the ring flange not mutually perpendicular, be 90 degrees right angle included angles, in case the ring flange appears crooked, need cut the steel pipe again, weld once more after the correction, waste time and energy, inefficiency. In addition, the welding flanges at two ends of the steel pipe are often corrected and positioned by square feet, for example, patent document (CN 202676116U) known by the inventor discloses a verticality inspection ruler for pipeline flanges, which is used for measuring the change degree of the verticality of the pipeline flanges caused by deformation caused by over-force during the process of assembling, welding and transporting the pipeline flanges.

However, in the process of implementing the technical solution in the embodiment of the present application, the inventor of the present application finds that the above technology has at least the following technical problems: when using the square to carry out the ring flange and proofreaies and correct the location, must alone hand square and ring flange alone in addition carry out the spot welding location, operating personnel easily receives the burning and scalding because of can't accomplish comprehensive protection, has the potential safety hazard, and the flange straightness that hangs down receives the human factor to influence great moreover, and the incline appears easily, causes the rework.

The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

Disclosure of Invention

In view of at least one of above technical problem, this disclosure provides a pipeline flange dish welding position device, through two terminal surfaces coplane and with wait to weld two limiting plates of flange dish pipeline vertically, inject the welding position and the straightness that hangs down of ring flange, solve among the prior art flange welding inefficiency and the straightness that hangs down and receive the technical problem that human factor influences.

According to one aspect of the disclosure, a pipeline flange welding and positioning device is provided, which comprises two limiting parts clamped at two sides of the outer edge of a pipeline with a flange plate to be welded, a connecting part used for connecting the two limiting parts, and a lifting ring arranged at the top of the connecting part; the connecting pieces are correspondingly connected to the corresponding positions at the upper parts of the two limit pieces; the two limiting parts are used for being attached to the two end faces of the flange plate to be welded to be coplanar.

In some embodiments of the disclosure, the connecting member is provided with a groove for keeping parallel to the pipeline of the flange to be welded, and the groove is perpendicular to the two coplanar end surfaces of the two limiting members for attaching to the flange to be welded.

In some embodiments of the present disclosure, the connector is embodied as a channel or i-steel.

In some embodiments of the present disclosure, a vertical distance between the two limiting members is consistent with a diameter of a pipe of the flange plate to be welded.

In some embodiments of the present disclosure, the pipe joint further includes a fixing hole disposed at a position where the two limiting members correspond to the tangent line of the pipe, and a limiting bolt disposed in the fixing hole, wherein the fixing hole is provided with a thread matched with the limiting bolt.

In some embodiments of the disclosure, the two limiting members are respectively provided with an ear plate for being bolted with a corresponding bolt hole of the flange plate to be welded.

One or more technical solutions provided in the embodiments of the present application have at least any one of the following technical effects or advantages:

1. the two limiting plates are clamped on the pipeline to be welded, two end faces of the two limiting plates are perpendicular to the pipeline to be welded, the position of the limiting plates is fixed, the end faces perpendicular to the pipeline are fixed, the welding position and the verticality of the flange plate to be welded play an effective limiting and correcting role, and the technical problems that human input and the verticality of the flange plate body are greatly influenced by human factors due to a manual holding mode are effectively solved.

2. The connecting piece can be effectively guaranteed to be parallel to the pipelines of the flange plates to be welded through the grooves, so that the two limiting parts are guaranteed to be perpendicular to the coplanar end faces, attached to the flange plates to be welded, of the pipelines under the condition that a positioning measuring tool is not needed, the perpendicularity of the flange plates is guaranteed, and errors and complex measuring processes caused by manual operation are avoided.

3. Two locating parts are equipped with the fixed orifices respectively, realize waiting the extrusion of welded tube through the spacing bolt that corresponds, guarantee the certainty of limiting plate position from this, produce the problem that thrust leads to two locating parts to shift to two locating parts when avoiding welding the ring flange, guarantee the firm of locating part position, and then guarantee ring flange welding position's accuracy.

4. Because set up and be used for treating the otic placode of welding the ring flange through the bolt fastening, can effectively fix and treat the welding ring flange, further avoided under the special circumstances if the pipeline is not the location problem of initial welding time ring flange under the level prevention state, prevent that the ring flange from breaking away from or the skew pipeline is treated the welding position because of factors such as gravity, guarantee to treat that the ring flange corresponds the terminal surface and closely laminate with the limiting plate.

Drawings

Fig. 1 is a schematic structural diagram of a pipe flange welding and positioning device in an embodiment of the present application.

Fig. 2 is a schematic use state diagram of a pipeline flange welding and positioning device in an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a pipe flange welding and positioning device according to another embodiment of the present application.

In the above figures, 1 is a limiting part, 2 is a connecting part, 3 is a handle, 4 is a fixing hole, 5 is a fastening bolt, 6 is a pipeline to be welded, 7 is a flange to be welded, and 8 is an ear plate.

Detailed Description

In the description of the present application, it is to be understood that the orientations and positional relationships as referred to with the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", and the like are based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present application. The term "connected" and "coupled" when used in this application includes both direct and indirect connections (couplings), unless otherwise specified.

The components and parts in the following examples are all conventional commercially available products unless otherwise specified.

For better understanding of the technical solutions of the present application, the technical solutions will be described in detail below with reference to the drawings and specific embodiments.

The embodiment discloses a pipe flange welding and positioning device, which is shown in fig. 1 and comprises two limiting parts 1 clamped on two sides of the outer edge of a pipe to be welded, a connecting part 2 for connecting the two limiting parts 1, and a handle 3 arranged at the top of the connecting part 2.

In this embodiment, flange plates need to be welded to the DN100 pipeline, the two limiting members 1 are respectively two channel steels with a width of 50mm, and the connecting member 2 is a # 11 h-shaped steel with a length of 200 mm. In order to limit the limiting part 1 on the flange plate to be welded, the limiting part 1 is arranged symmetrically left and right relative to the connecting part 2, so that the outer end faces of the two limiting plates are coplanar, and the outer end faces serve as stress supporting faces to respectively support two sides of the flange plate. For avoiding connecting piece 2 to influence the laminating spacing between two locating parts and the flange dish of taking the welding, the event is with the one end at connecting piece 2 of the welding of two locating parts 1 symmetry, prevent that the locating part that the terminal surface of connecting piece 2 surpasss two outside terminal surfaces coplanar of two locating parts place leads to can't with wait to weld the flange dish laminating. In addition, for guaranteeing to wait to weld the straightness that hangs down of ring flange, need to ensure that two locating part 1 coplanar both ends face and wait to weld the pipeline mutually perpendicular, for this reason, in this embodiment, utilize the recess of the I-steel that connecting piece 2 adopted for two groove arms coincide with waiting to weld the pipeline when using, guarantee that this connecting piece 2 is parallel with the pipeline, set up two locating part 1 and connecting piece 2 mutually perpendicularly again, make two locating part 1's coplanar end face and wait to weld the pipeline mutually perpendicular from this, and then guaranteed the straightness that hangs down of waiting to weld the ring flange of laminating with it.

In other embodiments, the two limiting members 1 may be rectangular steel plates, and the connecting member 2 may be formed of \ 21274channel steel, so that the two limiting members 1 are symmetrical with respect to the connecting member 2, and the end surfaces of the two limiting members 1, which are attached to the flange plate to be welded, are perpendicular to the connecting member. In order to ensure that the device can be stably clamped at the outer edge of a pipeline of the flange plate to be welded, the width of the connecting piece 2 is ensured so that the distance between the two limiting pieces 1 is consistent with the diameter of the pipeline to be welded, and a gap is prevented between the limiting pieces 1 and the pipeline to be welded, so that the device can easily shift around the pipeline to be welded to influence the determination of the welding position. In addition, in order to conveniently take and use the pipeline flange welding and positioning device, the lifting handle is arranged on the top surface of the connecting piece 2, and the device can be conveniently and quickly lifted or dropped through the lifting handle.

The ring flange need weld the tip of waiting to weld the pipeline, avoids the pipeline tip to surpass the ring flange plane to the unnecessary part of pipeline makes its ring flange and the unable laminating of other part pipeline ring flanges, leads to leaking, need prescribe a limit to the welding position of ring flange for this reason, and the atress takes place the skew when avoiding welding. The distance between the two limiting parts 1 is consistent with the diameter of the pipeline to be welded, so that the two limiting parts 1 can be tightly clamped on the two sides of the pipeline to be welded, but still have a sliding risk, in the embodiment, referring to fig. 1, the two limiting parts 1 are respectively provided with a fixing hole 4, the circle center of the fixing hole is located on a tangent line of the limiting part 1 and the pipeline to be welded, a thread is arranged in the fixing hole 4, the fixing hole corresponds to the fixing hole and further comprises a fastening bolt 5, after the two limiting parts 1 are clamped on the outer edge of the pipeline to be welded, the fastening bolt 5 is screwed in the corresponding fixing hole 4 until the fixing hole is tightly contacted with the pipeline to be welded, and therefore, the positions of the two limiting parts 1 are limited through the fastening bolt 5, and the relative movement between the two limiting parts and the pipeline to be welded is prevented.

When the device is used, referring to fig. 2, the two limiting parts 1 are clamped on two sides of the pipeline 6 to be welded through the lifting handle 3, the position of the device is adjusted according to the welding position of the flange 7 to be welded, the end parts of the arms on two sides of the connecting piece groove are tightly attached to the pipeline to be welded, and therefore the coplanar end parts of the limiting parts 1 are perpendicular to the pipeline. And then the fastening bolt 5 is screwed in the fixing hole 4 corresponding to the limiting part 1, and the limiting part 1 and the pipeline to be welded are prevented from sliding relatively through the tight contact of the fastening bolt and the pipeline to be welded, so that the position stability is realized. In other embodiments, in order to further fix the flange, it is avoided that when the old pipeline is vertical or inclined, if the flange is welded at the end of the old pipeline, the flange is separated from the end of the pipeline to be welded under gravity and is inconvenient to weld, in a non-horizontal state of the pipeline to be welded, for example, when the old pipeline is partially cut and a new pipeline is replaced by a flange connection. Therefore, the two limiting parts 1 are respectively provided with the lug plates 8, referring to fig. 3, the lug plates 8 are used for being correspondingly connected with the bolt holes of the flange plates to be welded through bolts, the connection between the flange plates to be welded and the limiting parts is realized through two-point fixation of the left lug plate and the right lug plate, and the connection between the flange plates to be welded and the limiting parts is released after the welding is finished, so that the welding requirements under special conditions are met.

While certain preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the disclosure.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention in the present application. Thus, it is intended that the present application also include such modifications and variations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (6)

1. A pipeline flange plate welding and positioning device is characterized by comprising two limiting parts, a connecting part and a lifting handle, wherein the two limiting parts are clamped on two sides of the outer edge of a pipeline of a flange plate to be welded; the connecting pieces are correspondingly connected to the corresponding positions at the upper parts of the two limiting pieces; the two limiting parts are used for being attached to the two end faces of the flange plate to be welded to be coplanar.

2. The pipe flange welding positioning device according to claim 1, wherein the connecting member is provided with a groove for keeping parallel to the pipe of the flange to be welded, and the groove is perpendicular to the two coplanar end surfaces of the two limiting members for fitting the flange to be welded.

3. The pipe flange welding positioning device according to claim 2, wherein the connecting piece is a channel steel or an I-steel.

4. The pipe flange welding positioning device of claim 1, wherein the vertical distance between the two limiting members is the same as the diameter of the pipe of the flange to be welded.

5. The pipe flange welding positioning device according to claim 1, further comprising fixing holes provided at positions of the two limiting members corresponding to a tangent of the pipeline, and limiting bolts provided in the fixing holes, wherein the fixing holes are provided with threads matching the limiting bolts.

6. The pipe flange welding positioning device according to claim 1, wherein the two position-limiting members are respectively provided with an ear plate for bolt connection with a corresponding bolt hole of the flange plate to be welded.

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