CN111716069A - Pipeline external butt-joint device and butt-joint welding method thereof - Google Patents
Pipeline external butt-joint device and butt-joint welding method thereof Download PDFInfo
- Publication number
- CN111716069A CN111716069A CN202010611845.XA CN202010611845A CN111716069A CN 111716069 A CN111716069 A CN 111716069A CN 202010611845 A CN202010611845 A CN 202010611845A CN 111716069 A CN111716069 A CN 111716069A
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- pipe
- misalignment
- screw rod
- gap
- control screw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Abstract
The invention discloses an external pipe aligning device, which comprises: the device comprises a main body, an offset control device, a gap control device and a buckling device, wherein the offset control device, the gap control device and the buckling device are arranged on the main body. The invention also discloses a butt welding method of the pipeline external butt welding device. When the butt welding device is used for butt welding of pipelines, the misalignment amount and the gap can be effectively controlled, and the butt welding device is particularly suitable for butt installation of pipelines with the diameters of 200mm and above.
Description
Technical Field
The invention relates to a pipeline welding technology, in particular to an external aligning device for a pipeline and an aligning welding method thereof.
Background
The butt joint device is a tool used for adjusting the butt joint of a pipeline and a pipeline to be aligned when the pipeline is installed. Generally, the following are classified according to the use location: the device comprises an in-pipe mouth aligner and an out-pipe mouth aligner; the method is divided into the following steps according to power sources: hydraulic, pneumatic, mechanical, etc.
When the pipeline assembly is welded, the control of the misalignment amount and the gap directly influences the welding quality, and the misalignment amount and the gap of a welding opening are difficult to control by a conventional aligning device so as to keep the misalignment amount and the gap uniform. The mouth-aligning device is complex to assemble and disassemble, auxiliary tools such as a jack and the like are needed during mouth aligning, and a part of welding seams can not be subjected to backing welding under the condition that the mouth-aligning device is not disassembled.
Disclosure of Invention
The technical problem solved by the invention is to provide an external pipeline aligning device and an aligning welding method thereof, which can effectively control the misalignment amount and the gap when pipelines are aligned and welded, and are particularly suitable for the assembly and installation of pipelines with the diameter of 200mm or more.
The technical scheme is as follows:
pipeline external aligning device includes: the device comprises a main body, a misalignment amount control device, a gap control device and a buckling device; the main body comprises two annular split bodies, each split body comprises two semicircular arc-shaped plates, one ends of the two semicircular arc-shaped plates are hinged together through a first bolt, and the other ends of the two semicircular arc-shaped plates are connected through a buckle device; the misalignment amount control device is connected between two components of a whole that can function independently, and misalignment amount control device includes: the device comprises a misalignment plate body, a first misalignment amount control screw rod and a second misalignment amount control screw rod; the misalignment plate body is provided with two first threaded through holes, and the first misalignment amount control screw rod and the second misalignment amount control screw rod are respectively arranged in the two first threaded through holes; the gap control device is connected between the two split bodies and is arranged at intervals with the misalignment amount control device; the gap control device includes: a gap plate body and a gap control screw rod; the clearance plate body is provided with a second threaded through hole, the clearance control screw rod is installed in the second threaded through hole, and the front end of the clearance control screw rod is provided with a tip.
Further, the main body is symmetrically provided with at least two pairs of misalignment amount control devices and gap control devices.
Furthermore, a groove is formed in the plate body at the position of the staggered edge between the two first threaded through holes.
Further, the outer wall surface included angle of the tip 34 is 30-70 degrees.
Further, the buckle device includes: a handle, a hook and a connecting end plate; the end part of one semi-circular arc plate is hinged with the handle by a second bolt, and the connecting end plate is fixed on the side wall of the end part of the other semi-circular arc plate; one end of the hook is movably connected to the handle, and the other end of the hook is hooked to the connecting end plate.
Furthermore, the first misalignment amount control screw rod, the second misalignment amount control screw rod, the gap control screw rod, the first bolt and the end cap of the second bolt are all in an inner hexagonal form and an outer hexagonal form.
The butt welding method of the pipe external butt welding device comprises the following steps:
placing the pipeline outer mouth aligning device at the end parts of two pipelines needing mouth aligning welding, opening the connection of a buckle device on the pipeline outer mouth aligning device, and surrounding the pipe orifice position of the pipeline end part with a semicircular arc-shaped plate from the outer side of the pipeline end part;
hooking the hook on the connecting end plate, closing the handle, and respectively hooping the two split bodies at the pipe orifice positions of the two pipelines, wherein the opposite port positions of the two pipelines are positioned between the two split bodies;
adjusting the pipe orifice gaps of the two pipelines to ensure that the misalignment quantities around the two pipe orifices are the same, respectively screwing a first misalignment quantity control screw rod and a second misalignment quantity control screw rod on the misalignment quantity control devices around the two pipe orifices, abutting against the peripheries of the two pipe orifices, and fixing the relative positions of the pipe orifices of the two pipelines;
and the gap control screw rod of the gap control device is rotated, the tip of the gap control screw rod acts on the grooves of the two orifices, the relative positions of the two grooves are finely adjusted, the width of the gap is controlled, root welding is carried out on the periphery of the grooves of the two orifices, and the butt welding of the two orifices is completed.
Preferably, the misalignment amount control device is removed after the root welding is finished.
Preferably, a crowbar is used to be clamped at the groove for levering, so that the rotary pipe external aligning device rotates on the pipe, and the relative position of the pipe external aligning device and the pipe is adjusted, and the pipe orifice gap of the two pipes is aligned.
Preferably, the diameter of the conduit is at least 200 mm.
The invention has the technical effects that:
the invention has the advantages of convenient use, convenient operation, low cost, repeated use and effective control of the misalignment amount and the gap, and is particularly suitable for the assembly and installation of pipelines with DN200 (diameter of 200mm) and above.
Drawings
FIG. 1 is a schematic structural view of an external pipe end-piece according to the present invention;
FIG. 2 is a schematic structural diagram of an edge misalignment control device according to the present invention;
FIG. 3 is a schematic view of the gap control apparatus of the present invention;
fig. 4 is a schematic view of the structure of the end of the bolt in the form of an inner and outer hexagon according to the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
Fig. 1 is a schematic structural view of the external orifice aligning device of the pipeline in the invention.
Pipeline external aligning device includes: the device comprises a main body 1, a misalignment amount control device 2, a gap control device 3 and a buckling device 4; the misalignment amount control device 2, the gap control device 3, and the engaging device 4 are attached to the main body 1.
The main part 1 comprises two annular split bodies 11, the split bodies 11 comprise two semicircular arc-shaped plates, one ends of the two semicircular arc-shaped plates are hinged together through a first bolt 7, and the other ends of the two semicircular arc-shaped plates are connected through a buckle device 4. The buckle device 4 includes: a handle 41, a hook 42 and a connecting end plate 43; the end part of one semi-circular arc plate is hinged with the handle 41 by a second bolt 8, and the connecting end plate 43 is fixed on the side wall of the end part of the other semi-circular arc plate; one end of the hook 42 is movably connected to the handle 41, and the other end is hooked on the connecting end plate 43.
Fig. 2 is a schematic view showing the structure of the misalignment amount control device 2 according to the present invention.
The misalignment amount control device 2 is connected (welded) between the two split bodies 11, and four misalignment amount control devices 2 are symmetrically arranged on the periphery of the main body 1.
The misalignment amount control device 2 includes: the device comprises a misalignment plate body 21, a first misalignment amount control screw rod 22 and a second misalignment amount control screw rod 23; the misalignment plate body 21 is provided with two first threaded through holes 25, the first misalignment amount control screw 22 and the second misalignment amount control screw 23 are respectively installed in the two first threaded through holes 25, and a groove 24 is formed in the misalignment plate body 21 between the two first threaded through holes 25.
The first misalignment amount control screw 22 and the second misalignment amount control screw 23 on each misalignment amount control device 2 respectively act on the end parts of two pipelines needing aligning, and the misalignment amount of the end parts of the two pipelines is controlled through the first misalignment amount control screw 22 and the second misalignment amount control screw 23.
Fig. 3 is a schematic view showing the structure of the gap control device 3 according to the present invention.
The gap control devices 3 are connected (welded) between the two split bodies 11, four gap control devices 3 are symmetrically arranged on the periphery of the main body 1, and the gap control devices 3 and the misalignment amount control devices 2 are arranged at intervals.
The gap control device 3 includes: a gap plate body 31, a gap control screw 32; the gap plate body 31 is provided with a second threaded through hole 33, the gap control screw 32 is installed in the second threaded through hole 33, and a tip 34 is provided at the front end of the gap control screw 32. The outer wall angle of the tip 34 is 60.
The gap control screw rod 32 on the gap control device 3 acts on the groove parts of two pipelines needing to be butted, the gap control screw rod 32 controls the misalignment amount of the end parts of the two pipelines, and the size of the gap is controlled by controlling the depth of the tip 34 of the four-direction gap control screw rod 32 entering the groove parts of the two pipelines.
Fig. 4 is a schematic view showing the structure of the end of the bolt of the present invention in the form of an inner and outer hexagon.
The first misalignment amount control screw rod 22, the second misalignment amount control screw rod 23, the gap control screw rod 32, the first bolt 7 and the second bolt 8 all adopt an inner hexagonal form and an outer hexagonal form so as to meet the operation requirements under various operating environments.
The butt welding method of the pipeline external butt welding device comprises the following specific steps:
step 1: placing the pipeline outer mouth aligning device at the end parts of two pipelines needing mouth aligning welding, opening the connection of a buckle device 4 on the pipeline outer mouth aligning device, and surrounding the pipe orifice position of the pipeline end part with a semicircular arc-shaped plate from the outer side of the pipeline end part;
the device can be suitable for pipeline assembly installation of DN200 and above.
Step 2: hooking the hook 42 on the connecting end plate 43, closing the handle 41, and respectively hooping the two split bodies 11 at the pipe orifice positions of the two pipelines, wherein the opposite port positions of the two pipelines are positioned between the two split bodies 11;
and step 3: adjusting the pipe orifice gaps of the two pipelines to ensure that the misalignment quantities around the two pipe orifices are the same, respectively screwing a first misalignment quantity control screw rod 22 and a second misalignment quantity control screw rod 23 on the misalignment quantity control device 2 around the two pipe orifices, abutting against the peripheries of the two pipe orifices, and fixing the relative positions of the pipe orifices of the two pipelines;
the clearance is adjusted to ensure that the misalignment amount around the clearance between the two pipe orifices is the same, thereby meeting the standard requirement. If the pipeline external butt joint device is required to be rotated, a crowbar is clamped at the groove 24 to be pried so as to rotate the pipeline external butt joint device.
And 4, step 4: the gap control screw rod 32 of the gap control device 3 is rotated, the tip end 34 of the gap control screw rod 32 acts on the grooves of the two orifices, the relative positions of the two grooves are finely adjusted, the gap width is controlled, root welding is carried out on the periphery of the grooves of the two orifices, and the butt welding of the two orifices is completed.
After the adjustment is finished, root welding can be carried out, and the misalignment amount control device 2 is removed after 100% root welding is finished, so that effective guarantee is provided for the quality of a welded junction.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. An external pipe aligning device, comprising: the device comprises a main body, a misalignment amount control device, a gap control device and a buckling device; the main body comprises two annular split bodies, each split body comprises two semicircular arc-shaped plates, one ends of the two semicircular arc-shaped plates are hinged together through a first bolt, and the other ends of the two semicircular arc-shaped plates are connected through a buckle device; the misalignment amount control device is connected between two components of a whole that can function independently, and misalignment amount control device includes: the device comprises a misalignment plate body, a first misalignment amount control screw rod and a second misalignment amount control screw rod; the misalignment plate body is provided with two first threaded through holes, and the first misalignment amount control screw rod and the second misalignment amount control screw rod are respectively arranged in the two first threaded through holes; the gap control device is connected between the two split bodies and is arranged at intervals with the misalignment amount control device; the gap control device includes: a gap plate body and a gap control screw rod; the clearance plate body is provided with a second threaded through hole, the clearance control screw rod is installed in the second threaded through hole, and the front end of the clearance control screw rod is provided with a tip.
2. The external pipe aligning device of claim 1, wherein the main body is symmetrically provided with at least two pairs of misalignment control devices and gap control devices.
3. The pipe outer adapter according to claim 1, wherein a recess is provided in the plate body at the offset between the two first threaded through holes.
4. The pipe outer mouth piece according to claim 1, wherein the outer wall surface angle of the tip 34 is 30-70 °.
5. The pipe outer mouth piece according to claim 1, wherein the snap means comprises: a handle, a hook and a connecting end plate; the end part of one semi-circular arc plate is hinged with the handle by a second bolt, and the connecting end plate is fixed on the side wall of the end part of the other semi-circular arc plate; one end of the hook is movably connected to the handle, and the other end of the hook is hooked to the connecting end plate.
6. The pipe external aligning device of claim 5, wherein the first misalignment amount control screw, the second misalignment amount control screw, the gap control screw, the first bolt and the end cap of the second bolt are in an internal hexagonal form and an external hexagonal form.
7. A butt welding method for an external pipe butt welding device comprises the following steps:
placing the pipeline outer mouth aligning device at the end parts of two pipelines needing mouth aligning welding, opening the connection of a buckle device on the pipeline outer mouth aligning device, and surrounding the pipe orifice position of the pipeline end part with a semicircular arc-shaped plate from the outer side of the pipeline end part;
hooking the hook on the connecting end plate, closing the handle, and respectively hooping the two split bodies at the pipe orifice positions of the two pipelines, wherein the opposite port positions of the two pipelines are positioned between the two split bodies;
adjusting the pipe orifice gaps of the two pipelines to ensure that the misalignment quantities around the two pipe orifices are the same, respectively screwing a first misalignment quantity control screw rod and a second misalignment quantity control screw rod on the misalignment quantity control devices around the two pipe orifices, abutting against the peripheries of the two pipe orifices, and fixing the relative positions of the pipe orifices of the two pipelines;
and the gap control screw rod of the gap control device is rotated, the tip of the gap control screw rod acts on the grooves of the two orifices, the relative positions of the two grooves are finely adjusted, the width of the gap is controlled, root welding is carried out on the periphery of the grooves of the two orifices, and the butt welding of the two orifices is completed.
8. The butt welding method for the pipe outer butt connector according to claim 7, wherein the misalignment amount control device is removed after the root welding is completed.
9. The butt welding method for the pipe external butt device according to claim 7, wherein a crowbar is used to pry the groove, so that the rotary pipe external butt device rotates on the pipe to adjust the relative position of the pipe external butt device and the pipe to align the pipe orifice gap of the two pipes.
10. The butt welding method of the pipe outer butt according to claim 1, wherein the diameter of the pipe is at least 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611845.XA CN111716069A (en) | 2020-06-30 | 2020-06-30 | Pipeline external butt-joint device and butt-joint welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611845.XA CN111716069A (en) | 2020-06-30 | 2020-06-30 | Pipeline external butt-joint device and butt-joint welding method thereof |
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| CN111716069A true CN111716069A (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010611845.XA Pending CN111716069A (en) | 2020-06-30 | 2020-06-30 | Pipeline external butt-joint device and butt-joint welding method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500349A (en) * | 2021-07-22 | 2021-10-15 | 中建安装集团有限公司 | Pipeline aligning device for realizing accurate pipe orifice butt joint |
-
2020
- 2020-06-30 CN CN202010611845.XA patent/CN111716069A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500349A (en) * | 2021-07-22 | 2021-10-15 | 中建安装集团有限公司 | Pipeline aligning device for realizing accurate pipe orifice butt joint |
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