CN113319457A - Pipeline welding method - Google Patents
Pipeline welding method Download PDFInfo
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- CN113319457A CN113319457A CN202110601677.0A CN202110601677A CN113319457A CN 113319457 A CN113319457 A CN 113319457A CN 202110601677 A CN202110601677 A CN 202110601677A CN 113319457 A CN113319457 A CN 113319457A
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- 238000003466 welding Methods 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
- B23K37/0217—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member being fixed to the workpiece
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of pipeline welding, and discloses a pipeline welding method which comprises the following steps of firstly, assembling a track, wherein a frame is provided with a plurality of sections of guide rails, the plurality of sections of guide rails are assembled to form an annular track, and a pipeline to be welded is positioned in the annular track; and step two, welding, wherein the welding device moves along the annular track to weld the pipeline to be welded. The invention has the following advantages and effects: the invention originally adopts the assembly of a plurality of sections of tracks to form the annular track, the annular track is not installed and fixed on the pipeline to be welded but fixed relative to the frame, and the position of the frame relative to the pipeline to be welded is fixed, so that the welding device can weld the pipeline to be welded when moving along the annular track. The pipeline to be welded can be clamped through the clamping device on the frame on the basis, and the relative position of the frame and the pipeline to be welded is prevented from changing. The circular orbit is convenient to assemble, and the welding efficiency and the welding quality of the pipeline can be obviously improved.
Description
Technical Field
The invention relates to the technical field of pipeline welding, in particular to a pipeline welding method.
Background
The pipeline transportation is a transportation form generated along with the development of industries such as petroleum production, natural gas, chemical industry and the like, and has the advantages of large transportation volume, sustainable operation, low cost and the like. The pipeline construction process has long paving line and huge welding workload, in particular to a girth welding procedure. In order to reduce the welding cost and labor intensity in the process of laying the pipeline construction and improve the welding quality, the automatic all-position pipeline welding equipment is provided in the prior art, and the pipeline can be welded by 360 degrees. All-position pipeline automatic weld equipment includes guide tracked all-position pipeline welding robot, the outer circumference welding robot of portable pipe, climbs a pipe robot etc. and its fixed guide rail of mating formation on the pipeline that adopts more, and welding set climbs the pipe along the guide rail motion to weld the pipeline, the guide rail adopts modes such as magnetism to fix on the pipeline more. The above prior art has the following disadvantages: the guide rail is fixed on the pipeline through the form of magnetism, and first one the pipeline all is the pipe, need consume more time during the installation, leads to welding efficiency ten minutes lowly. And secondly, the position of the track after the track is installed and fixed on the arc outer wall of the pipeline is not firm, and the track is particularly applied to the pipeline made of stainless steel. So, welding set is easy off tracking very much when climbing the pipe, directly can lead to welding quality low, welding position off tracking, seriously influences pipeline welding efficiency and pipeline efficiency of mating formation.
Disclosure of Invention
The invention aims to provide a pipeline welding method which has the effects of convenience in rail assembly and high welding efficiency.
The technical purpose of the invention is realized by the following technical scheme: a pipeline welding method comprises the following steps that firstly, a track is assembled, a frame is provided with a plurality of sections of guide rails, the plurality of sections of guide rails are assembled to form an annular track, and a pipeline to be welded is located in the annular track; and step two, welding, wherein the welding device moves along the annular track to weld the pipeline to be welded.
By adopting the technical scheme, the pipeline to be welded comprises the two pipelines, namely the pipeline I and the pipeline II. The first pipeline and the second pipeline are coaxially arranged, and the end part of the first pipeline is aligned to the end part of the second pipeline.
The invention is further provided with: in the first step, the relative position of the annular track formed after assembly and the frame is fixed.
By adopting the technical scheme, the annular rail formed after assembly is fixed on the frame and not on the pipeline to be welded, and a gap is formed between the inner wall of the annular rail and the outer wall of the pipeline to be welded and is not attached and contacted. The welding method of the invention is applied to pipelines with larger diameter and larger self weight, such as transportation pipelines in the industries of petroleum, natural gas and chemical industry. The pipeline to be welded and the frame are respectively kept fixed in relative positions by means of self weight, and the annular rail formed after assembly is fixed on the frame and is fixed in relative position with the frame, so that the annular rail is also fixed in relative position with the pipeline to be welded, and the welding device of the annular rail can weld the pipeline to be welded. Compared with the prior art that the rails are installed and fixed on the pipeline to be welded in the modes of magnetic attraction and the like, the invention adopts the guide rails which are assembled in multiple sections, and the annular rail formed after assembly is fixed relative to the frame, so that the assembly difficulty of the annular rail is greatly simplified, and the installation and fixation efficiency of the annular rail is effectively improved.
The invention is further provided with: in the first step, a clamping device is installed on the frame or the guide rails, and after the plurality of sections of guide rails are assembled to form the annular track, the clamping device acts to clamp the pipeline to be welded so as to keep the relative position between the annular track and the pipeline to be welded fixed.
By adopting the technical scheme, the clamping device is arranged on the frame, the pipeline to be welded is clamped after the clamping device acts, the relative positions of the frame and the annular track and the pipeline to be welded are kept fixed, and the influence on welding caused by the change of the relative positions of the frame and the annular track and the pipeline to be welded in the welding process is avoided.
The invention is further provided with: in the first step, the number of the tracks is two or three or four or more.
The invention is further provided with: in the first step, the motion trail of the guide rail is a straight line, an arc line or a curve in the assembling process.
The invention is further provided with: in the second step, the welding device comprises a distance measuring sensor, the welding device moves for one circle along the annular track, and the distance measuring sensor measures data at the welding groove of the pipeline to be welded and transmits the data to the welding device; and the welding device converts the measured welding groove data into execution motion data and welds the pipeline to be welded.
By adopting the technical scheme, the annular track is formed after the plurality of sections of guide rails are assembled, and the annular track can be positioned at the coaxial line with the pipeline to be welded and can also be positioned at the different coaxial lines with the pipeline to be welded. The welding device comprises a distance measuring sensor, before the welding device welds the pipeline to be welded, the welding device firstly moves for a circle along the annular track, and the distance measuring sensor measures data at a welding groove of the pipeline to be welded and transmits the data to the welding device. And adjusting the welding position of the welding device, and welding the pipeline to be welded.
In the invention, the welding groove refers to a position on the pipeline to be welded.
The invention is further provided with: when the welding device moves around the annular track, the distance measuring sensor measures the welded groove data of the pipeline to be welded and converts the groove data into the execution motion data of the next circle of welding of the welding device.
By adopting the technical scheme, after the distance measuring sensor measures the welding groove data of the pipeline to be welded, the data is converted into the execution motion data of the next circle of welding of the welding device, and the welding operation and the measuring operation can be carried out simultaneously or not simultaneously.
The process of welding operation and measuring operation simultaneously: when the welding device moves around the annular track, the groove of the track to be welded is welded, and meanwhile, the distance measuring sensor measures the groove data which are just welded and converts the groove data into execution data during the next circle of welding of the welding device.
The welding operation and the measuring operation are not performed simultaneously: after the welding device finishes welding for one circle, the welding device shrinks and returns to the zero point of the annular track, at the moment, the distance measuring sensor is opened, the welding device moves around the annular track for one circle again and then returns to the zero point, the distance measuring sensor converts the welded groove shape and size data into execution motion data in the process, and the next circle of welding is started. The welding effect detection is performed in such a circulating way, and data for detecting the welding effect are ensured after each welding. This process can reduce the effect of the welding arc on the accuracy of the ranging sensor measurements.
The invention is further provided with: the distance measuring sensor is a laser distance measuring sensor.
Through adopting above-mentioned technical scheme, the preferred laser rangefinder sensor that is preferred to the rangefinder sensor, also can select other types of rangefinder sensor.
The invention is further provided with: in the first step, after the pipeline to be welded is positioned in the annular track, a gap is formed between the outer wall of the pipeline to be welded and the inner wall of the annular track.
Through adopting above-mentioned technical scheme, treat that welded pipe outer wall and annular track inner wall are contactless.
The invention is further provided with: before the first step, a preparation step is also included, the pipeline to be welded is placed at a designated position, and a crane is used for transporting the frame to the pipeline to be welded; and step three, after the welding in the step two is finished, the plurality of guide rails are separated, and the transport frame is separated from the pipeline after the welding is finished.
Through adopting above-mentioned technical scheme, adopt the crane to transport the frame, be convenient for transport the frame and weld the pipeline at the pipeline transportation line site of mating formation.
And after the welding is finished, the transport frame leaves the pipeline after the welding is finished, and the next group of pipelines to be welded are continuously welded. The pipeline to be welded is horizontal, which means that the pipeline to be welded is in a horizontal state in the welding process; the vertical pipeline to be welded means that the pipeline to be welded is in a vertical state in the welding process. The pipe welding method of the present invention can be applied regardless of whether the pipe to be welded is horizontal or vertical.
The invention has the beneficial effects that:
firstly, the invention creatively adopts the assembly of a plurality of sections of tracks to form the annular track, and the annular track is not installed and fixed on the outer wall of the pipeline to be welded but fixed on the frame. The relative position of the frame and the pipeline to be welded is fixed, and the pipeline to be welded can be welded when the welding device moves along the annular track. The circular track is convenient to assemble, the zero position and the motion trail of the welding device are fixed, the relative coordinate position of the welding device is accurate, and the measured data has an accurate relative coordinate system, so that the welding device is fast to fix and operate, the time is saved, and the pipeline welding efficiency is obviously improved.
Secondly, when fixing the track installation on treating the welded pipe outer wall among the prior art, the track laminating is at the pipeline outer wall, so, same track can only be used for the pipeline of a diameter specification. The assembled annular rail is fixed on the frame, and a gap is formed between the annular rail and the outer wall of the pipeline to be welded, so that the same annular rail can be applied to pipelines to be welded with various diameter specifications, and the annular rail has a wide application range and strong practicability.
And thirdly, the assembled annular track may or may not be in the coaxial position relative to the pipeline to be welded. The welding device comprises a distance measuring sensor, the distance measuring sensor measures data of the position of the pipeline to be welded, and the welding device adjusts the welding position to facilitate welding of the pipeline to be welded. The invention does not require that the position of the annular track and the pipeline to be welded are in the same axial line position, and only needs to ensure that the frame and the annular track and the pipeline to be welded keep fixed relative positions, thereby being very beneficial to paving and welding the pipeline on the site in a pipeline transportation line.
In the prior art, the rail is fixedly arranged on the pipeline to be welded, when the welding device performs welding along the rail motion, the welding quality is judged by naked eyes, and the labor intensity of workers is high. When the welding device moves along the annular track, the welding device welds a pipeline to be welded, a distance measuring sensor in the welding device collects data of a position just welded, the relative coordinate system of the measuring device is accurately repeatedly positioned, welding seam quality inspection can be rapidly carried out by winding a circle again, the quality condition of the last welding dimension can be reflected through the measured data, the dimension position of the next welding can be fed back, data reference is provided for the welding of the next circle of the welding device, the welding quality is high, and the labor intensity of workers is low.
The frame and the pipeline to be welded can be fixed in relative positions by means of respective self weight, and the pipeline to be welded can be clamped by the clamping device on the basis, so that the relative positions of the frame, the annular track and the pipeline to be welded are kept fixed, and the relative positions of the frame and the pipeline to be welded are prevented from being changed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view showing the positional relationship among a frame, an accommodation space, and a pipe to be welded in example 1.
Fig. 2 is a schematic structural diagram of the two-stage track, the welding device, the splicing drive device and the clamping device in embodiment 1.
Fig. 3 is a schematic view of the two-stage guide rail of embodiment 1 assembled into an endless track.
Fig. 4 is a schematic structural view of a holding device of embodiment 1.
Fig. 5 is a schematic view of a state in which the holding jig of embodiment 1 holds a pipe to be welded.
FIG. 6 is a schematic view showing the positional relationship between the welding apparatus and the pipes to be welded in example 1.
Fig. 7 is a schematic view of the positional relationship between the guide rails of embodiment 2.
Fig. 8 is a schematic view of the positional relationship between the guide rails of embodiment 3.
Fig. 9 is a schematic view of the positional relationship between the guide rails of embodiment 4.
Fig. 10 is a schematic view of the positional relationship between the guide rails of embodiment 5.
In the figure, 1, a frame 2 and a guide rail; 21. a circular arc rack; 3. a welding device; 31. a traveling motor; 32. a ranging sensor; 4. assembling a driving device; 5. a clamping device; 6. a pipe to be welded; 61. a first pipeline; 62. a second pipeline; 7. an annular track.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1: a pipeline welding method comprises the following steps,
the method comprises a preparation step, wherein the pipeline 6 to be welded is placed at a designated position, the pipeline 6 to be welded comprises a first pipeline 61 and a second pipeline 62, and the first pipeline 61 and the second pipeline 62 are in coaxial positions and are in a horizontal state. The frame 1 is hoisted by a crane to the pipe 6 to be welded.
As shown in fig. 1 to 6, the frame 1 is provided with two sections of guide rails 2 and two splicing driving devices 4, the two sections of guide rails 2 are both semicircular, each section of guide rail 2 is slidably connected to the frame 1, and the moving track of the guide rail 2 is a straight line.
Each splicing driving device 4 corresponds to one guide rail 2 and is used for driving the guide rails 2 to move. The assembling driving device 4 can select an electric cylinder or an electric push rod or a linear module or a servo module, and can also adopt other driving structures, such as a screw rod, a nut component and a motor, wherein the screw rod is rotationally connected to the frame 1, the motor is used for driving the screw rod to rotate, and the nut component is fixed with the guide rail 2. The assembling driving device 4 can play a role in pushing the guide rail 2 to move.
One of them section guide rail 2 goes up sliding connection has welding set 3, and welding set 3 includes walking motor 31, and walking motor 31 output shaft is fixed with the gear. Each section of guide rail 2 is also fixed with an arc rack 21, and the gear is meshed with the arc rack 21.
Firstly, assembling the tracks, wherein the assembly driving device 4 drives the guide rails 2 at the two ends to approach each other, the annular track 7 is formed after assembling, the closed ring is also formed after the arc racks 21 are assembled, and the welding device 3 can move for a whole circle along the annular track 7. After the pipeline 6 to be welded is positioned in the annular track 7, a gap is formed between the outer wall of the pipeline 6 to be welded and the inner wall of the annular track.
A plurality of clamping devices 5 are installed on the frame 1 or the guide rail 2, the clamping devices 5 can be linear modules or electric cylinders or electric push rods or other structures, and the clamping devices 5 clamp the outer wall of the pipeline 6 to be welded after acting so as to keep the annular rail 7 fixed relative to the pipeline 6 to be welded. The number of the clamping devices 5 can be multiple, and the clamping devices can be clamped on the first pipeline 61, the second pipeline 62 and the first pipeline 61 and the second pipeline 62 at the same time.
And step two, welding, wherein the welding device 3 comprises a distance measuring sensor 32, and the starting position of the welding device 3 is a zero position. The running motor 31 in the welding device 3 runs to drive the welding device 3 to move for a whole circle along the annular track 7, and the distance measuring sensor 32 collects data at the welding groove of the pipeline 6 to be welded and transmits the data to the welding device 3. And the welding device 3 converts the data transmitted back by the distance measuring sensor into execution motion data, adjusts the position of the inner welding gun, and starts to weld the pipeline 6 to be welded when the welding device 3 moves for a second circle along the annular track 7. Meanwhile, the distance measuring sensor 32 measures the shape and size data of the welding groove immediately after welding, and transmits the measured data to the welding device 3 to convert the measured data into the execution motion data of the next welding circle of the welding device 3. The welding device 3 continues to move along the circular track 7 for a plurality of turns to perform a plurality of welds.
And step three, after the welding in the step two is finished and the multiple guide rails 2 are separated, hoisting the frame 1 by using a crane, and hoisting the frame 1 away from the pipeline after the welding is finished.
Example 2: a pipe welding method is different from embodiment 1 in that, as shown in fig. 7, in the first step, the number of the guide rails 2 is three. The number of the assembling driving devices 4 is three, and the three assembling driving devices 4 are respectively in one-to-one correspondence with the three sections of guide rails 2.
Example 3: a pipe welding method is different from embodiment 1 in that, as shown in fig. 8, the number of the guide rails 2 is three, and one of the guide rails 2 is located above and fixed to the frame 1. Two sections of guide rails 2 are positioned below and are connected on the frame 1 in a sliding way. The number of the assembling driving devices 4 is two, and the two assembling driving devices 4 are respectively connected with the two sections of guide rails 2 positioned below one by one.
Example 4: a pipe welding method, which is different from embodiment 1 in that, as shown in fig. 9, the number of guide rails 2 is four, and four splicing drive devices 4 are provided, and are respectively connected to the four guide rails 2 in a one-to-one correspondence.
Example 5: a pipeline welding method is different from the embodiment 1 in that, as shown in figure 10, the number of guide rails 2 is two, the two sections of guide rails 2 are both hinged on a frame 1, a splicing driving device is two electric push rods, the two electric push rods are respectively in one-to-one correspondence with the two sections of guide rails 2, the electric push rods are hinged on the frame 1 and connected with the guide rails 2 and can drive the guide rails 2 to rotate on the frame 1, and the movement track of the guide rails 2 is an arc line.
Example 6: a pipeline welding method is different from the embodiment 1 in that the motion trail of a guide rail 2 is a curve, and the specific shape of the curve can be designed according to the working requirement.
Example 7: a pipeline welding method is different from the embodiment 1 in that in the second step, the welding operation and the measuring operation are not carried out simultaneously, after one circle of welding is finished by a welding device 3, the welding device 3 contracts and returns to the zero point position of an annular track, at the moment, a distance measuring sensor 32 is turned on, the welding device 3 moves around the annular track 7 for one circle again and returns to the zero point, the distance measuring sensor 32 measures the welded groove shape and size data in the process, the data are transmitted back to the welding device 3 and converted into execution motion data, the distance measuring sensor 32 is turned off, and the welding device 3 carries out welding again on a device to be welded in the next circle of motion along the annular track 7. The welding effect detection is performed in such a circulating way, and data for detecting the welding effect are ensured after each welding. This process can reduce the effect of the welding arc on the accuracy of the ranging sensor measurements.
Claims (10)
1. A pipeline welding method is characterized in that: comprises the following steps of (a) carrying out,
firstly, assembling a track, wherein a frame (1) is provided with a plurality of sections of guide rails (2), the plurality of sections of guide rails (2) are assembled to form an annular track (7), and a pipeline (6) to be welded is positioned in the annular track (7);
and step two, welding, wherein the welding device (3) moves along the annular track (7) to weld the pipeline (6) to be welded.
2. A method of welding pipes according to claim 1, characterized in that: in the first step, the relative position of the annular track (7) formed after assembly and the frame (1) is fixed.
3. A method of welding pipes according to claim 1, characterized in that: in the first step, a clamping device (5) is installed on a frame (1) or a guide rail (2), after a plurality of sections of guide rails (2) are assembled to form an annular track (7), the clamping device (5) acts to clamp a pipeline (6) to be welded so as to keep the relative position between the annular track (7) and the pipeline (6) to be welded fixed.
4. A method of welding pipes according to claim 1, 2 or 3, characterized in that: in the first step, the number of the tracks is two or three or four or more.
5. A method of welding pipes according to claim 1, 2 or 3, characterized in that: in the first step, the motion trail of the guide rail (2) in the assembling process is a straight line, an arc line or a curve.
6. A method of welding pipes according to claim 1, 2 or 3, characterized in that: in the second step, the welding device (3) comprises a distance measuring sensor (32), the welding device (3) moves for one circle along the annular track (7), and the distance measuring sensor (32) measures data at a welding groove of the pipeline (6) to be welded and transmits the data to the welding device (3); and the welding device converts the measured welding groove data into execution motion data and welds the pipeline to be welded.
7. The pipe welding method according to claim 6, wherein: in the second step, when the welding device moves around the annular track, the distance measuring sensor measures the welded groove data of the pipeline to be welded and converts the groove data into the execution motion data of the next circle of welding of the welding device.
8. The pipe welding method according to claim 6, wherein: the distance measuring sensor (32) is a laser distance measuring sensor.
9. A method of welding pipes according to claim 1, 2 or 3, characterized in that: in the first step, after the pipeline (6) to be welded is positioned in the annular track, a gap is formed between the outer wall of the pipeline (6) to be welded and the inner wall of the annular track.
10. A method of welding pipes according to claim 1, 2 or 3, characterized in that: before the first step, the method also comprises a preparation step, wherein the pipeline (6) to be welded is placed at a specified position, and the frame (1) is hoisted to the pipeline (6) to be welded by a crane; and step three, after the welding in the step two is finished, after the multiple guide rails (2) are separated, the transport frame (1) is separated from the pipeline after the welding is finished.
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| CN202110601677.0A CN113319457A (en) | 2021-05-31 | 2021-05-31 | Pipeline welding method |
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| CN202110601677.0A CN113319457A (en) | 2021-05-31 | 2021-05-31 | Pipeline welding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952118A (en) * | 2022-07-08 | 2022-08-30 | 成都熊谷加世电器有限公司 | Pipeline welding workstation and running gear |
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Application publication date: 20210831 |