CN212264990U - Pipeline and flange alignment device - Google Patents

Abstract

The disclosure relates to a device for aligning a pipeline and a flange, and belongs to the technical field of pipeline systems. The pipeline and flange alignment device comprises a bottom plate, a pipeline positioning frame and at least two flange positioning blocks; the fixed setting of pipeline locating rack is on the surface of bottom plate, and the pipeline locating rack has two crossing locating surfaces, and the locating surface all is perpendicular with the surface of bottom plate, has the clearance between the surface of locating surface and bottom plate, and every flange locating piece is all detachably connected with the surface of bottom plate. When the device is used, the side surface of the pipeline is leaned against the positioning surface of the pipeline positioning frame, and then the flange is placed on the bottom plate, so that the pipeline through hole is aligned with the flange through hole; and fixing at least two flange positioning blocks on the bottom plate at intervals and clinging to the side faces of the flanges. Like this to the pipeline and the flange of same model, only need adjust the position of flange locating piece once, need not all carry out artifical the alignment at every turn, realized the semi-mechanized operation of flange to the mouth, convenient to use is simple, align efficiently.

Description

Pipeline and flange alignment device

Technical Field

The disclosure relates to the technical field of pipeline systems, in particular to a pipeline and flange aligning device.

Background

Most of pipelines used in daily production are formed by connecting at least two sections of short pipelines. It is generally necessary to weld a flange to one end of the pipe before connecting the pipes and then to connect the two sections of pipe using the flange.

Before welding a flange at one end of a pipeline, aligning a flange through hole of the flange with a pipeline through hole of the pipeline, enabling a central shaft of the flange through hole and a central shaft of the pipeline through hole to be on the same straight line, ensuring the concentricity of the flange through hole and the pipeline through hole, and welding the flange with the pipeline. In the related art, the alignment of the flange through hole and the pipeline through hole is generally carried out manually, and the flange through hole and the pipeline through hole are aligned by manually and continuously adjusting the position of the flange or the pipeline.

However, manual adjustment of the position of the flange or pipe is slow. And after the pipeline and the flange are welded each time, when another pipeline and flange are welded, the positions of the pipeline and the flange need to be adjusted again, and the operation is complicated.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a device for aligning a pipeline and a flange, which can quickly adjust the positions of the flange and the pipeline to align a flange through hole and a pipeline through hole. The technical scheme is as follows:

the present disclosure provides a pipe and flange alignment apparatus, which includes a bottom plate, a pipe positioning frame, and at least two flange positioning blocks;

the pipeline positioning frame is fixedly arranged on the surface of the bottom plate, the pipeline positioning frame is provided with two crossed positioning surfaces, the positioning surfaces are perpendicular to the surface of the bottom plate, and a gap is formed between the positioning surfaces and the surface of the bottom plate;

each flange positioning block is detachably connected with the surface of the bottom plate.

In one implementation manner of the embodiment of the present disclosure, the pipe positioning frame includes a bracket, a connecting block, and two positioning plates, the bracket is fixed on the surface of the bottom plate, and the connecting block is respectively connected to the bracket and the two positioning plates; each positioning plate is provided with one positioning surface.

In one implementation of the disclosed embodiment, the support is a cylindrical structure with a hollow center.

In one implementation of the embodiment of the present disclosure, the pipe and flange alignment apparatus further includes: a sliding block and a pressing clamp;

the sliding block is arranged on the connecting block in a sliding manner along the horizontal direction;

the compaction clamp is connected with the sliding block and is provided with a compaction end, and a pipeline aligned with the flange is accommodated between the compaction end and the intersected positioning surface.

In an implementation manner of the embodiment of the present disclosure, the connecting block includes a first connecting block and a second connecting block fixed to a side of the first connecting block, the positioning plate is disposed on the first connecting block, and the sliding block is disposed on the second connecting block.

In one implementation manner of the embodiment of the present disclosure, the sliding block has sliding grooves penetrating through two opposite end surfaces of the sliding block, and the sliding grooves are arranged along the horizontal direction;

the pipe and flange aligning device further comprises a bolt, and the bolt penetrates through the sliding groove and is detachably connected with the connecting block.

In an implementation manner of the embodiment of the present disclosure, the pressing clamp includes a first connecting member, a second connecting member, and a pressing rod having the pressing end, where the first connecting member and the pressing rod are both arranged along a sliding direction of the slider, the second connecting member is arranged along a sliding direction perpendicular to the slider, the first connecting member is connected to the slider, one end of the second connecting member is connected to the first connecting member, and the pressing rod is connected to the other end of the second connecting member.

In one implementation manner of the embodiment of the present disclosure, the pressing pliers further include a handle, the handle is connected to the second connecting member, and the pressing rod and the handle face opposite sides of the second connecting member respectively.

In one implementation of the embodiment of the present disclosure, the pipe and flange alignment apparatus further includes a positioning pointer, and the positioning pointer faces the flange.

In one implementation of the disclosed embodiment, an asbestos sheet is disposed on a surface of the base plate.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

when the pipeline and flange aligning device disclosed by the invention is used, the side surface of the pipeline is leaned against the positioning surface of the pipeline positioning frame, so that the side surface of the pipeline is vertical to the surface of the bottom plate; then placing the flange on the bottom plate, and continuously adjusting the position of the flange to align the pipeline through hole with the flange through hole; and fixing at least two flange positioning blocks on the bottom plate at intervals and clinging to the side faces of the flanges. The position of the flange positioning block is fixed, the pipeline and flange aligning device is reused, when the flange of the same model is aligned with the pipeline, the flange and the pipeline can be aligned only by attaching the side face of the pipeline to the positioning face and attaching the side face of the flange to the flange positioning block. Then, the pipeline and the flange are welded, so that for the pipeline and the flange of the same model, the position of the flange positioning block is adjusted only once, manual alignment is not needed at each time, semi-mechanical operation of flange alignment is realized, the use is convenient and simple, and the alignment efficiency is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a pipe and flange alignment apparatus provided in an embodiment of the present disclosure;

FIG. 2 is a top view of a pipe and flange alignment apparatus provided in accordance with an embodiment of the present disclosure;

fig. 3 is a front view of a pipe and flange alignment apparatus provided in an embodiment of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a pipe and flange alignment device according to an embodiment of the present disclosure. Referring to fig. 1, the pipe and flange alignment apparatus includes a base plate 10, a pipe positioning bracket 20, and at least two flange positioning blocks 30. The pipeline positioning frame 20 is fixedly arranged on the surface of the bottom plate 10, the pipeline positioning frame 20 is provided with two crossed positioning surfaces (namely, the two positioning surfaces are arranged in a V shape), the positioning surfaces are both vertical to the surface of the bottom plate 10, and a gap is formed between the positioning surfaces and the surface of the bottom plate 10; each flange positioning block 30 is detachably coupled to a surface of the base plate 10.

In this implementation, when using the pipe and flange alignment apparatus of the present disclosure, the side of the pipe 2 is first abutted against the positioning surface of the pipe positioning frame 20, so that the side of the pipe 2 is perpendicular to the surface of the bottom plate 10; then placing the flange 1 on the bottom plate 10, and continuously adjusting the position of the flange 1 to align the pipeline through hole with the flange through hole; and then at least two flange positioning blocks 30 are fixed on the bottom plate 10 at intervals and tightly attached to the side surface of the flange 1. At the moment, the position of the flange positioning block 30 is fixed, the pipeline and flange aligning device is reused, when the flange 1 of the same model is aligned with the pipeline 2, only the side face of the pipeline 2 is required to be attached to the positioning face, and the side face of the flange 1 is attached to the flange positioning block 30, so that the flange and the pipeline can be aligned. Then carry out pipeline 2 and flange 1 welding (spot welding), like this to the pipeline and the flange of same model, only need adjust the position of flange locating piece 30 once, need not all carry out artifical the alignment at every turn, realized the semi-mechanized operation of flange butt joint, convenient to use is simple, align efficiently.

The pipeline and flange alignment device that this disclosure provided is applicable to flush joint flange, butt welding flange and socket joint welding flange homoenergetic.

In the embodiment of the present disclosure, the pipes 2 are all cylindrical, the positioning surfaces of the pipe positioning frames 20 intersect to form an intersection angle, and the cylindrical pipe 2 is placed between the two positioning surfaces, so that the two positioning surfaces are both attached to the side surface of the cylindrical pipe 2. Since the locating surface is perpendicular to the surface of the base plate 10, the pipe 2 is also perpendicular to the surface of the base plate 10. And then the flange 1 is placed on the surface of the bottom plate 10, so that the sealing surface of the pipeline 2 and the flange 1 can be ensured to be vertical, and the verticality of the pipeline 2 and the flange surface of the flange 1 can be ensured. Wherein the sealing surface of the flange 1 represents the surface against which the flange abuts.

In the disclosed embodiment, the Nominal Diameter (DN) of the pipe 2 may range from 40 millimeters (mm) to 80 mm. The length of the pipe 2 may range between 0.2 meters (m) and 1.0 meter.

For example, the pipe 2 may have a nominal diameter of 60 mm and a length of 0.5 m.

In the disclosed embodiment, the thickness of the flange 1 may be between 20 mm and 100 mm, for example, when the flange 1 is a flat welded flange, the thickness of the flange 1 may be 30 mm, and when the flange 1 is a neck-butt welded flange, the thickness of the flange may be 80 mm because the neck-butt welded flange has a tapered neck. Wherein the thickness of the flange refers to the height in the direction perpendicular to the surface of the flange.

In one implementation of the disclosed embodiment, the pipe-to-flange alignment apparatus may include two flange positioning blocks 30. Fig. 2 is a top view of a pipe and flange alignment device provided in an embodiment of the present disclosure. Referring to fig. 2, two flange positioning blocks 30 are arranged at intervals around the flange 1.

In this implementation, the two flange positioning blocks 30 are tangent to the outer circle of the flange 1, and for the same type of flange 1, the size of the flange is the same, and the diameters of the outer circles are the same. The position of the circle can be determined when the position of any two points on the circle is known, as well as the diameter of the circle. Namely, the position of the flange can be determined by two flange positioning blocks 30.

In the embodiment of the present disclosure, the flange positioning block 30 has sliding grooves arranged along the horizontal direction a, the sliding grooves penetrate through two opposite sides of the flange positioning block 30, the bottom plate 10 has threaded holes, bolts penetrate through the threaded holes from the bottom surface of the bottom plate and penetrate through the sliding grooves of the flange positioning block 30, and then nuts are screwed on the bolts to connect the flange positioning block 30 and the bottom plate 10. The flange positioning block 30 is slidable in the horizontal direction a. When the position of the flange 1 is determined, the flange positioning block 30 is moved to enable the flange positioning block 30 to be attached to the side face of the flange 1, when the flange positioning block 30 is not moved in place, the flange positioning block 30 is not pressed tightly by bolts, when the flange positioning block 30 is moved in place, the flange positioning block 30 is pressed tightly by the bolts, and therefore the effect of fixing the flange positioning block 30 is achieved. When the pipeline and flange aligning device is used again and the flange 1 of the same model is aligned with the pipeline 2, the flange and the pipeline can be aligned only by sticking the side surface of the pipeline 2 to the positioning surface and sticking the side surface of the flange 1 to the flange positioning block 30.

In the embodiment of the present disclosure, the thickness of the flange positioning block 30 may be between 20 mm and 40 mm in a direction perpendicular to the surface of the base plate 10, which ensures the stability of the flange positioning block 30. For example, the thickness of the flange positioning block 30 may be 20 mm.

In one implementation of the embodiment of the present disclosure, the bottom plate 10 and the pipe positioning frame 20 may both be made of metal, so as to ensure the strength and stability of the bottom plate 10 and the pipe positioning frame 20.

In one implementation of the embodiment of the present disclosure, the pipe positioning frame 20 may be welded on the bottom plate 10, so that the bottom plate 10 and the pipe positioning frame 20 are connected more firmly, and the stability of the pipe positioning frame 20 is ensured.

In the disclosed embodiment, the thickness of the base plate 10 may range between 10 mm and 20 mm, ensuring the strength of the base plate 10. For example, the thickness of the base plate 10 may be 12 mm.

In one implementation of the disclosed embodiment, an asbestos sheet is disposed on the surface of the base plate 10.

In this implementation, the base plate 10 is made of metal, and when the flange 1 is placed, the flange 1 may collide with the base plate 10, and the flange surface of the flange 1 may be damaged. The asbestos plate is arranged on the surface of the bottom plate 10, the asbestos plate is made of soft materials, the flange face of the flange 1 is prevented from being damaged, meanwhile, the asbestos plate is not conductive, and welding current is prevented from damaging the flange sealing face in the welding process.

Referring again to fig. 1, the pipe positioning frame 20 may include a bracket 201, a connecting block 202, and two positioning plates 203, the bracket 201 is fixed on the surface of the base plate 10, the connecting block 202 is respectively connected to the bracket 201 and the two positioning plates 203, and each positioning plate 203 has a positioning surface.

In this implementation, a bracket 201 is disposed on the pipe positioner 20, and the bracket 201 is used to support the connection block 202 and the two positioning plates 203. The positioning surface is formed by two crossed positioning plates 203, so that the pipeline is positioned conveniently. Because the diameter ratio of flange 1 will be bigger than the diameter of pipeline 2, consequently set up connecting block 202 between support 201 and locating plate 203, can make and have a distance between locating plate 203 and the support 201, just so can guarantee that the position of flange can not be taken up by support 201, cause the flange can't align with the pipeline.

In an implementation manner of the embodiment of the present disclosure, the bracket 201, the connecting block 202, and the positioning plate 203 may be made of metal materials, so as to ensure stability and strength of the bracket 201 and the positioning plate 203. Simultaneously can weld support 201, connecting block 202 and locating plate 203, convenient preparation, with welding power cord lug connection on support 201 simultaneously, provide the electric energy through support 201 to pipeline 2, accomplish the welding, need not be to pipeline or flange joint power cord in the welding operation process.

In the disclosed embodiment, angle steel may be directly used to form two intersecting positioning plates 203.

Illustratively, the width of the angle iron edge may range between 50 mm and 70 mm, and the thickness of the angle iron edge may range between 2 mm and 5 mm. The width of the angle steel edge indicates the width of the right-angle edge of the angle steel, and the thickness of the angle steel edge indicates the thickness of the right-angle edge of the angle steel.

For example, the width of the angle steel edge may be 60 mm, and the thickness of the angle steel edge may be 3 mm.

Illustratively, the length of the angle steel may range between 0.15 meters and 0.2 meters, for example the length of the angle steel may be 0.18 meters.

Referring again to fig. 1, the stent 201 is a cylindrical structure with a hollow center.

In this implementation, the bracket 201 is arranged in a cylindrical structure with a hollow middle part, so that the weight of the pipeline and flange alignment device can be reduced, and the pipeline and flange alignment device can be conveniently carried. But also reduces the consumption of the material for manufacturing the pipeline bracket 201 and saves the cost.

Illustratively, the support 201 may be a hollow square steel cylinder.

Illustratively, the width of the sides of the square steel from which the bracket 201 is made may range between 50 mm and 70 mm, and the thickness of the sides of the square steel may range between 2 mm and 5 mm. Wherein, the side width of the square steel indicates the width of the right-angle side of the square steel, and the side thickness of the square steel indicates the thickness of the right-angle side of the square steel.

For example, the square steel edge may be 60 mm wide and 3 mm thick.

Illustratively, the length of the stent 201 may range between 0.25 meters and 0.35 meters, for example the stent 201 may have a length of 0.3 meters.

In the disclosed embodiment, the positioning plate 203 has a gap with the surface of the base plate 10 in the vertical direction, so that the flange 1 can be placed in the gap, thereby achieving alignment of the flange and the pipe.

Referring again to fig. 1, the pipe and flange alignment apparatus further comprises: a slide block 40 and a pressing clamp 50, wherein the slide block 40 is arranged on the connecting block 202 in a sliding way along the horizontal direction a. A clamping jaw 50 is connected to the slide 40 and the clamping jaw 50 has a clamping end 501, between which clamping end 501 and the intersecting locating surfaces a pipe 2 aligned with the flange 1 is received.

In this implementation, a slider 40 and a crimping tong 50 are arranged on the pipe-to-flange alignment, and movement of the crimping tong 50 is driven by movement of the slider 40, causing the crimping end 501 to secure the pipe 2. Because the pressing pliers 50 can slide along with the sliding blocks 40, the positioning and pressing of pipelines with different pipe diameters can be realized by adjusting the positions of the pressing pliers 50.

Referring again to fig. 1, the connection block 202 includes a first connection block 221 and a second connection block 222 fixed to a side of the first connection block 221, the positioning plate 203 is disposed on the first connection block 221, and the slider 40 is disposed on the second connection block 222.

In this implementation, the first connecting block 221 and the second connecting block 222 are respectively connected to the positioning plate 203 and the sliding block 40, and the second connecting block 222 is connected to the side surface of the first connecting block 221, so that a space is formed between the sliding block 40 and the pressing pliers 50 and the pipeline 2, and the position of the pipeline 2 can be conveniently adjusted.

Illustratively, the first connection block 221 and the second connection block 222 may also be hollow structures, so as to reduce the weight of the pipe and flange alignment device, reduce manufacturing materials, and save cost.

Fig. 3 is a front view of a pipe and flange alignment apparatus provided in an embodiment of the present disclosure. Referring to fig. 3, the connecting block 202 has two first connecting blocks 221, the two first connecting blocks 221 are arranged at intervals, and the two first connecting blocks 221 are simultaneously connected with the bracket 201 and the positioning plate 203, so that the stability of the positioning plate 203 is ensured, meanwhile, the manufacturing material can be reduced, and the cost is saved. Note that the second connecting block 222, the slider 40, and the pressing jaw 50 are not shown in fig. 3.

Referring again to fig. 1, the slider 40 has sliding grooves 401 penetrating through opposite end surfaces of the slider 40, and the sliding grooves 401 are arranged in the horizontal direction a. The pipe and flange alignment apparatus further includes a bolt 60, and the bolt 60 is detachably coupled to the connection block 202 through the slide groove 401.

In the embodiment of the present disclosure, the sliding groove 401 is disposed on the sliding block 40, and the sliding block 40 slides along the sliding groove 401 and the bolt 60, so that the pressing end 501 of the pressing clamp 50 slides, the position of the pressing end in the horizontal direction a is adjusted, and the pipes with different pipe diameters are positioned and pressed, thereby ensuring the stability of the pipe 2.

In the embodiment of the present disclosure, at least two protrusions are disposed on the connecting block 202, the protrusions are disposed along the horizontal direction a, and each protrusion is in contact with the lower surface of the sliding block 40 and is used for supporting the sliding block 40, so that the sliding block 40 can rotate around the bolt 60, and the sliding block 40 can only slide along the horizontal direction a.

Illustratively, the bumps can be welding spots, and are convenient to manufacture.

Referring again to fig. 1, the pressing pliers 50 includes a first connecting member 502, a second connecting member 503, and a pressing rod 504 having a pressing end 501, the first connecting member 502 and the pressing rod 504 are both arranged along the sliding direction of the slider 40, the second connecting member 503 is arranged along the direction perpendicular to the sliding direction of the slider 40, the first connecting member 502 is connected to the slider 40, one end of the second connecting member 503 is connected to the first connecting member 502, and the pressing rod 504 is connected to the other end of the second connecting member 503.

In this implementation, it is more convenient to arrange the compression end 501 by the first connector 502, the second connector 503, and the compression lever 504. The sliding block 40, the first connecting piece 502, the second connecting piece 503 and the pressing rod 504 are connected in sequence, and when the sliding block 40 slides, the first connecting piece 502, the second connecting piece 503 and the pressing rod 504 are driven to slide, so that the pressing end 501 is driven to slide, and the pipe aligning device is suitable for pipe aligning operations with different diameters.

In the embodiment of the present disclosure, each of the first connecting member 502 and the second connecting member 503 may be a plate, that is, each of the first connecting member 502 and the second connecting member 503 may be a connecting plate.

Referring again to fig. 1, the compaction clamp 50 further includes a connecting bolt 506, and the first connecting member 502 and the second connecting member 503 may be hinged by the connecting bolt 506.

Illustratively, the first connection member 502 and the second connection member 503 each have a through hole, and the connection bolt 506 passes through the through holes of the first connection member 502 and the second connection member 503 in turn, and then a nut is screwed on the connection bolt 506 to connect the first connection member 502 and the second connection member 503, so that the second connection member 503 can rotate around the first connection member 502. When the pipeline 2 is compressed, the second connecting member 503 and the compressing rod 504 are rotated, so that the compressing end 501 abuts against the side wall of the pipeline 2, and the pipeline 2 is compressed. After welding is completed, the second connector 503 and the clamping bar 504 are rotated in the opposite direction to remove the clamping end 501 and remove the welded pipe and flange.

In the embodiment of the present disclosure, since the first connecting member 502 and the second connecting member 503 are hinged, for the same type of pipeline and flange, after the position of the slider 40 is adjusted by the first welding, the position of the slider 40 does not need to be adjusted again when the subsequent welding is performed again, and the pipeline 2 can be compressed only by rotating the second connecting member 503 and the compressing rod 504.

In the embodiment of the present disclosure, the sliding direction of the sliding block 40 may be the same as the horizontal direction a, on one hand, the sliding block 40 is convenient to arrange, and on the other hand, the pressing end 501 can move towards the pipeline 2 along the horizontal direction a, so that the moving distance of the pressing end 501 is the shortest, which is more convenient.

Referring again to fig. 1, the compaction clamp 50 further includes a handle 505, the handle 505 is connected to the second connector 503, and the compaction bar 504 and the handle 505 are respectively directed to opposite sides of the second connector 503.

In this implementation, a handle 505 is disposed on the pressing clamp 50, the pressing clamp 50 is connected to the slider 40, the sliding of the pressing clamp 50 and the slider 40 can be controlled by the handle 505, and the second connecting member 503 and the pressing rod 504 can be rotated by the handle 505, which is more convenient.

In the disclosed embodiment, the pressing rod 504 and the handle 505 are disposed at the opposite ends of the second connecting member 503, so that it is more convenient to control the sliding of the pressing pliers 50 and the slider 40 by the handle 505, and to rotate the second connecting member 503 and the pressing rod 504 by the handle 505.

For example, the second connecting member 503 and the pressing rod 504, and the second connecting member 503 and the handle 505 may be connected by welding.

The use of the disclosed pipe and flange alignment apparatus is explained below by way of example for a flush welded flange and a butt welded flange, respectively:

1. when the pipeline and flange aligning device disclosed by the invention is used for operating the flat welding flange, the sealing surface end of the flat welding flange is downwards placed on the bottom plate on which the asbestos plate is well padded, then the side surface of the pipeline 2 leans against the positioning surface of the pipeline positioning frame 20, so that the lower end of the pipeline is inserted into the inner hole of the flat welding flange, the height of the pipe is adjusted to be a proper welding height, and the pipeline 2 is fixed by pulling the pressing pliers, and then the flat welding flange can be welded.

2. When using this disclosed pipeline and flange alignment device operation welding neck flange, at first lean on the side of pipeline 2 on the locating surface of pipeline locating rack 20, the distance of adjustment pipeline lower extreme and bottom plate makes its distance just be fit for welding neck flange's high back, pulls the pressing plier and fixes the pipeline, puts down the welding neck flange sealing surface down on the bottom plate of having filled up the asbestos board again, adjusts the flange position, makes its and pipeline concentric back, can weld. If a large number of welding production needs to be aligned, the flange positioning block 30 needs to be installed and adjusted. After the position of the flange is adjusted for the first time, the flange positioning blocks 30 are installed, so that the 2 flange positioning blocks 30 are respectively attached to the outer sides of the flanges and fixed, and the position of the flanges with the same size can be positioned.

Referring again to fig. 1, the pipe-to-flange alignment apparatus further includes a positioning finger 70, the positioning finger 70 facing the flange 1.

In this implementation, when the both ends of pipeline 2 all need mounting flange 1, can align the screw hole of two flanges, guarantee the depth of parallelism of the screw hole of two flanges, then make the mark on the same position of two flanges, when using this disclosed pipeline and flange alignment device, place flange 1 on bottom plate 10 after, circumferential direction rotates flange 1, makes the mark on flange 1 aim at location pointer 70, then electrically welds.

In the disclosed embodiment, the pipe-to-flange alignment apparatus may also be provided with two positioning fingers 70. Two positioning pointers 70 are respectively located at the upper and lower ends of the pipe positioner 20.

Illustratively, when flanges 1 are required to be mounted at two ends of a pipeline 2, welding of a flange at one end can be completed firstly, then the pipeline is turned over up and down, the welded flange faces upwards, bolt holes of an upper flange and a lower flange are aligned, parallelism and bolt hole positions of the two flanges are guaranteed, then marks are made on the upper flange and the lower flange, and then an upper positioning pointer and a lower positioning pointer are mounted to enable the upper positioning pointer and the lower positioning pointer to point to the marks of the upper flange and the lower flange respectively. When reusing this disclosed pipeline and flange alignment device batch operation, after pipeline one end flange welding, overturn the pipeline from top to bottom, make upper end flange mark relative with last location pointer, place flange 1 again on bottom plate 10 after, circumferential direction flange 1 makes the mark on the flange 1 align down location pointer 70, then electrically welds, just so can realize batch operation, avoids the repeated position alignment to pipeline both ends flange bolt hole.

Wherein, a movable plate can be connected to the pipe positioning frame 20, the movable plate is detachably connected to the pipe positioning frame 20, and the upper positioning pointer is mounted on the movable plate.

For example, the movable plate and the pipe positioning frame 20 may be connected by bolts and easily detached.

In the embodiment of the present disclosure, the positioning pointer 70 may be connected to the bracket 201, so as to ensure the stability of the positioning pointer 70.

As shown in fig. 1, one end of the positioning pointer 70 is fixed on the side wall of the bracket 201, and the other end faces the flange 1.

For example, the positioning pointer 70 may be a magnetic positioning pointer, the bracket 201 is an iron bracket, and the positioning pointer 70 may be connected to the bracket 201 by magnetic force, so that the positioning pointer 70 may be easily replaced and removed. When the positioning pointer 70 is not needed, the positioning pointer 70 can be directly taken down, and the use is more convenient.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims (10)

1. A pipe and flange alignment apparatus, characterized in that the pipe and flange alignment apparatus comprises a base plate (10), a pipe positioning frame (20) and at least two flange positioning blocks (30);

the pipeline positioning frame (20) is fixedly arranged on the surface of the bottom plate (10), the pipeline positioning frame (20) is provided with two crossed positioning surfaces, the positioning surfaces are perpendicular to the surface of the bottom plate (10), and a gap is formed between the positioning surfaces and the surface of the bottom plate (10);

each flange positioning block (30) is detachably connected with the surface of the bottom plate (10).

2. The pipe and flange alignment device according to claim 1, wherein the pipe positioning frame (20) comprises a bracket (201), a connecting block (202) and two positioning plates (203), the bracket (201) is fixed on the surface of the bottom plate (10), and the connecting block (202) is respectively connected with the bracket (201) and the two positioning plates (203); each positioning plate (203) is provided with one positioning surface.

3. The pipe and flange alignment device of claim 2, wherein the support (201) is a cylindrical structure with a hollow center.

4. The pipe and flange alignment device of claim 2, further comprising: a slide block (40) and a pressing clamp (50);

the sliding block (40) is arranged on the connecting block (202) in a sliding manner along the horizontal direction (a);

the pressing clamp (50) is connected with the sliding block (40), and the pressing clamp (50) is provided with a pressing end (501), and the pressing end (501) and the intersected positioning surface are used for accommodating a pipeline (2) aligned with the flange (1).

5. The pipe and flange alignment device according to claim 4, wherein the connection block (202) comprises a first connection block (221) and a second connection block (222) fixed to a side of the first connection block (221), the positioning plate (203) is disposed on the first connection block (221), and the sliding block (40) is disposed on the second connection block (222).

6. The pipe and flange alignment device according to claim 4, wherein said slider (40) has sliding grooves (401) extending through opposite end faces of said slider (40), said sliding grooves (401) being arranged along said horizontal direction (a);

the pipe and flange alignment device further comprises a bolt (60), and the bolt (60) penetrates through the sliding groove (401) to be detachably connected with the connecting block (202).

7. The pipe and flange alignment device according to claim 4, wherein the pressing clamp (50) comprises a first connector (502), a second connector (503), and a pressing rod (504) having the pressing end (501), the first connector (502) and the pressing rod (504) are both arranged along the sliding direction of the slider (40), the second connector (503) is arranged along the sliding direction perpendicular to the slider (40), the first connector (502) is connected with the slider (40), one end of the second connector (503) is connected with the first connector (502), and the pressing rod (504) is connected with the other end of the second connector (503).

8. Pipe and flange alignment device according to claim 7, wherein the clamping jaw (50) further comprises a handle (505), the handle (505) being connected to the second connector (503), the clamping bar (504) and the handle (505) being directed towards opposite sides of the second connector (503).

9. Pipe and flange alignment device according to any one of claims 1 to 8, further comprising a positioning index (70), said positioning index (70) being directed towards the flange (1).

10. Pipe and flange alignment device according to any one of claims 1 to 8, wherein an asbestos sheet is arranged on the surface of the bottom plate (10).

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