CN111250816A - Disposable cutting device for bevel groove of pipeline - Google Patents
Disposable cutting device for bevel groove of pipeline Download PDFInfo
- Publication number
- CN111250816A CN111250816A CN201811464206.4A CN201811464206A CN111250816A CN 111250816 A CN111250816 A CN 111250816A CN 201811464206 A CN201811464206 A CN 201811464206A CN 111250816 A CN111250816 A CN 111250816A
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- China
- Prior art keywords
- connecting portion
- cutting device
- pipeline
- annular track
- connecting part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000005520 cutting process Methods 0.000 title claims abstract description 75
- 238000003466 welding Methods 0.000 abstract description 14
- 230000001788 irregular Effects 0.000 abstract description 2
- 238000005498 polishing Methods 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
-
- 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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
-
- 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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
Abstract
The invention discloses a disposable cutting device for a bevel groove of a pipeline, which comprises a magnetic flame cutting machine, an annular track, a fixed clamp, a first connecting part, a second connecting part, a bolt and a nut, wherein the magnetic flame cutting machine moves around the outside of the annular track; the circular orbit one end still is connected with fixed clamp, is equipped with first connecting portion on the circular orbit, also corresponds on the periphery of fixed clamp to be equipped with the second connecting portion, and first connecting portion are connected through the bolt with the second connecting portion. The pipeline mouth cutting device is simple in structure, novel in style and convenient to operate, an irregular pipeline mouth can be cut skillfully according to requirements, a line is not required to be drawn, workers in the ordinary technical level can also cut, the cut face formed by cutting is flat, welding operation can be carried out without excessive polishing, a large amount of manpower and material resources are effectively saved, the practicability is high, and the pipeline mouth cutting device is suitable for popularization and use.
Description
Technical Field
The invention belongs to the technical field of pipeline cutting, and particularly relates to a one-time cutting device for a bevel groove of a pipeline.
Background
In pipe manufacturing and installation, it is often necessary to bevel cut the pipe. At present, most of the adopted modes are that a cutting torch is used for cutting along a drawn lead wire after manual line drawing, and the end part of a cut is uneven or is provided with a notch after the cutting torch is directly used for cutting, particularly when a pipeline with a large pipe diameter is cut, the cutting torch is manually adopted for cutting more inconveniently, so that an oblique opening cutting device with convenient operation and strong practicability needs to be developed.
At present, it needs about perhaps adjusting the pipeline angle trend about the restriction of topography needs in pipeline installation, the angle is too little can't use the elbow, the common way is, during less angle, in the within range that the amount of unfitness of butt joint allows, one side cuts the oblique mouthful and the original neat mouthful of group of opposite side is right up, when the angle is slightly big, in order to avoid the unfitness of butt joint, adopt two sides to cut the oblique mouthful group to be right, the setting-out in all processes, the cutting, it all needs artifical the completion to polish, need consume a large amount of time and human cost, and it is high to require gas cutting worker's technical level, even so, the group is also ideal inadequately to the clearance, consequently, the improvement to pipeline oblique mouthful cutting becomes.
Disclosure of Invention
The invention aims to provide a simple and efficient bevel groove cutting technology aiming at the defects, a line is not needed to be drawn, high-tech workers are not needed to perform gas cutting, the groove on the formed bevel is the same as the original port, excessive grinding is not needed, and the bevel surface is smooth and the bevel can be finished at one time.
The technical scheme for realizing the aim is as follows: a disposable cutting device for a bevel groove of a pipeline comprises a magnetic flame cutting machine, an annular track, a fixed clamp, a first connecting part, a second connecting part, a bolt and a nut, wherein the magnetic flame cutting machine moves around the outside of the annular track; the circular orbit one end still is connected with fixed clamp, the circular orbit on be equipped with first connecting portion, also correspond on the periphery of fixed clamp and be equipped with the second connecting portion, first connecting portion are connected through bolt and nut with the second connecting portion.
Furthermore, the annular track is in a circular tube shape, and two end faces of the annular track are parallel to each other and are vertical to the side face; the first connecting part is arranged on the circumferential side surface of one end of the annular track; the fixed clamp is in a ring shape and is formed by combining a semicircular ring A and a semicircular ring B, the semicircular ring A and the semicircular ring B are symmetrically arranged, and the semicircular ring A and the semicircular ring B are respectively provided with a second connecting part.
Furthermore, at least four first connecting parts are arranged and uniformly distributed on the circumferential surface of the annular track; the second connecting portion on the fixed clamp correspond to the first connecting portion on the annular rail.
Furthermore, the two ends of the semicircular ring A and the semicircular ring B are respectively provided with a connecting sheet, and the semicircular ring A and the semicircular ring B penetrate through the connecting sheets through bolts to be connected and fixed with nuts.
Furthermore, the first connecting portion be equipped with four and be "ten" style of calligraphy mutual symmetry setting, second connecting portion with first connecting portion corresponding be equipped with four and equally be "ten" style of calligraphy mutual symmetry setting.
Furthermore, the second connecting portion on be equipped with the screw, be equipped with the elliptical hole on the first connecting portion and be used for the screw butt joint on with the second connecting portion.
Furthermore, first connecting portion and second connecting portion run through both sides on the bolt and be equipped with the nut respectively, be used for prescribing a limit to the position of first connecting portion, second connecting portion on the one hand, on the other hand is used for controlling distance and contained angle between the pipeline terminal surface at the track terminal surface at first connecting portion place and second connecting portion place.
The pipeline mouth cutting device is simple in structure, novel in style and convenient to operate, an irregular pipeline mouth can be cut skillfully according to requirements, a line is not required to be drawn, workers in the ordinary technical level can also cut, the cut face formed by cutting is flat, welding operation can be carried out without excessive polishing, a large amount of manpower and material resources are effectively saved, the practicability is high, and the pipeline mouth cutting device is suitable for popularization and use.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the circular track of the present invention.
Fig. 3 is a schematic view of the structure of the retainer clip of the present invention.
Fig. 4 is a schematic perspective view of the semicircular ring a of the present invention.
FIG. 5 is a schematic view of the overall second cutting mode of the present invention.
In the drawing, 1, a magnetic flame cutting machine 2, an annular rail 3, a fixed clamp 301, a semicircular ring A302, a semicircular ring B4., a first connecting part 401, an elliptical hole 5, a second connecting part 501, a connecting piece 502, a screw hole 6, a bolt 7, a nut 8, a welded pipeline C9 and a welded pipeline D α form an included angle.
Detailed Description
In order to facilitate understanding of those skilled in the art, the embodiments of the present invention will be further described with reference to the accompanying drawings.
The disposable cutting device for the bevel groove of the pipeline as shown in the attached figures 1-4 comprises a magnetic flame cutting machine 1, an annular track 2, a fixed hoop 3, a first connecting part 4, a second connecting part 5, a bolt 6 and a nut 7, wherein the magnetic flame cutting machine 1 moves around the outside of the annular track 2; annular track 2 one end still is connected with fixed clamp 3, is equipped with first connecting portion 4 on the annular track 2, also corresponds on the periphery of fixed clamp 3 and is equipped with second connecting portion 5, and first connecting portion 4 is connected through bolt 6 and nut 7 with second connecting portion 5.
The annular track 2 is in a circular tube shape, and two end faces of the annular track 2 are parallel to each other and are vertical to the side face; the first connecting part 4 is arranged on the circumferential side surface of one end of the annular track 2; at least four first connecting parts 4 are arranged and uniformly distributed on the circumferential surface of the annular track 2; the second connecting part 5 on the fixed hoop 3 is arranged corresponding to the first connecting part 4 on the annular track 2; the fixing clamp 3 is annular and is formed by combining a semicircular ring A301 and a semicircular ring B302, the semicircular ring A301 and the semicircular ring B302 are symmetrically arranged, and the semicircular ring A301 and the semicircular ring B302 are respectively provided with a second connecting part 5; connecting pieces 501 are respectively arranged at two ends of the semicircular ring A301 and the semicircular ring B302, and the semicircular ring A301 and the semicircular ring B302 penetrate through the connecting pieces 501 through bolts 6 to be connected and fixed with nuts 7.
Preferably, the first connecting parts 4 are four and symmetrically arranged in a cross shape, and the second connecting parts 5 and the first connecting parts 4 are correspondingly provided with four and symmetrically arranged in a cross shape; the second connecting part 5 is provided with a screw hole 502, and the first connecting part 4 is provided with an elliptical hole 401 for butting with the screw hole 502 on the second connecting part 5; the first connecting portion 4 and the second connecting portion 5 are respectively provided with a nut 7 penetrating through two sides of the bolt 6, and are used for limiting the positions of the first connecting portion 4 and the second connecting portion 5 on one hand, and controlling the distance and the included angle between the end face of the track where the first connecting portion 4 is located and the end face of the pipeline where the second connecting portion 5 is located on the other hand.
When the angle between the reference pipeline and the welding pipeline is judged to meet the requirements of 5 degrees and α degrees and 30 degrees, the inclined port on one side is cut to cause misalignment during welding, the angle does not meet the requirements of welding operation, and the welded pipeline and the reference pipeline which are continuously connected are required to be subjected to inclined port cutting respectively and then to be subjected to butt joint.
When the included angle α is less than 5 °, as shown in fig. 1, the operation is as follows:
the welded pipeline D9 is used as a reference pipeline, the welded pipeline D9 is wrapped and fixed by a semicircular ring A301 and a semicircular ring B302 of a fixing clamp 3 and used as a supporting pipe for butt joint of a target cutting pipeline, then bolts 6 penetrate through connecting sheets 501 at two ends of the semicircular ring A301 and the semicircular ring B302 for fixing, then the end face of the welded pipeline D9 is butted with the end face of the annular track 2, which is provided with the first connecting part 4, and the bolt 6 penetrates through an elliptical hole 401 on the first connecting part 4 and a screw hole 502 on the second connecting part 5 for connection after butt joint; the end face of the welded pipeline D9 is parallel to the end face of the annular track 2, the magnetic flame cutting machine 1 is installed on the annular track 2 after the end face is fixed, then the cutting operation can be carried out on the welded pipeline C8 by accurately finding the starting point of the cutting, the welded pipeline C8 can be assembled and welded with the welded pipeline D9 after the cutting is completed, the required error variable cannot exceed 10% of the thickness of the pipe wall during the assembly welding, and the gap between welding seam blunt edges is larger than three millimeters. When the thickness of the pipe wall is more than six millimeters, in order to ensure the later-stage assembly, the welding quality needs to be cut in a groove cutting mode; the cutting nozzle angle of the magnetic flame cutting machine 1 is adjusted to enable the cutting nozzle to cut the welded pipeline C8 in an inclined mode, and therefore the inclined opening slope cutting operation can be completed efficiently and at one time.
When the included angle is 5 ° < α <30 °, as shown in fig. 5, the specific operation is as follows:
the welded pipe D9 is used as a reference pipe and passes through the semicircle of the fixed hoop 3The ring A301 and the semicircular ring B302 are wrapped on the welding pipeline D9 and fixed to serve as support pipes for butt joint of target cutting pipelines, then bolts 6 penetrate through connecting pieces 501 at two ends of the semicircular ring A301 and the semicircular ring B302 to be fixed, then the end face of the welding pipeline D9 is butted with the end face of the annular track 2, which is provided with the first connecting portion 4, and the butted end face is connected with the screw hole 502 in the second connecting portion 5 through the bolt 6 penetrating through the elliptical hole 401 in the first connecting portion 4; the end face of the welded pipe D9 is formed with the end face of the circular rail 2
After the included angle is fixed, the magnetic flame cutting machine 1 is installed on the annular track 2, and then the cutting operation can be carried out on the welded pipeline C8 by aligning the starting point of the cutting; after cutting, the welded pipeline C8 is used as a reference pipeline for secondary cutting, the semi-circular ring A301 and the semi-circular ring B302 of the fixing clamp 3 are wrapped on the welded pipeline C8 to be fixed to serve as support pipes of a secondary cutting target pipeline, then bolts 6 penetrate through connecting pieces 501 at two ends of the semi-circular ring A301 and the semi-circular ring B302 to be fixed, then the cut end face of the welded pipeline C8 is butted with the end face, provided with the first connecting portion 4, of the annular track 2, and after the butt joint, the bolts 6 penetrate through the elliptical holes 401 in the first connecting portion 4 and the screw holes 502 in the second connecting portion 5 to be connected; the end face of the welded pipeline C8 after cutting is parallel to the end face of the annular track 2, the magnetic flame cutting machine 1 is installed on the annular track 2 after the end face is fixed, then the starting point of cutting is found accurately, secondary cutting operation can be carried out on the welded pipeline D9, the welded pipeline D9 can be welded with the welded pipeline C8 in an assembly mode after cutting is completed, the required error variable during assembly welding does not exceed 10% of the thickness of the pipe wall, and the welding seam is not larger than four millimeters; when the thickness of the pipe wall is more than six millimeters, in order to ensure the later-stage assembly, the welding quality needs to be cut in a groove cutting mode; adjusting the angle of a cutting nozzle of the magnetic flame cutting machine 1 to enable the cutting nozzle to cut the welded pipeline D9 obliquely; the bevel slope cutting operation can be efficiently finished at one time; the invention is not limited to single welding pipe cutting, and can also be used for cutting the ends of spiral pipes, seamless pipes and heating pipes.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby; all simple equivalent changes and modifications made according to the claims and the content of the creation specification of the present invention should still fall within the scope covered by the present patent.
Claims (8)
1. A disposable cutting device for a bevel groove of a pipeline comprises a magnetic flame cutting machine (1), an annular track (2), a fixed clamp (3), a first connecting part (4), a second connecting part (5), a bolt (6) and a nut (7), wherein the magnetic flame cutting machine (1) moves around the outside of the annular track (2); annular track (2) one end still is connected with fixed clamp (3), its characterized in that, annular track (2) on be equipped with first connecting portion (4), also correspond on the periphery of fixed clamp (3) and be equipped with second connecting portion (5), first connecting portion (4) are connected through bolt (6) and nut (7) with second connecting portion (5).
2. The disposable cutting device for the bevel groove of the pipeline according to claim 1, wherein the annular track (2) is in a shape of a circular tube, and two end faces of the annular track (2) are parallel to each other and are perpendicular to the side faces; the first connecting part (4) is arranged on the circumferential side surface of one end of the annular track (2); fixed clamp (3) be the ring form, form by semicircle ring A (301) and semicircle ring B (302) combination, semicircle ring A (301) and semicircle ring B (302) are the symmetry and set up, are equipped with second connecting portion (5) on semicircle ring A (301) and the semicircle ring B (302) respectively.
3. The disposable cutting device for the bevel groove of the pipeline according to claim 1 or 2, wherein at least four first connecting parts (4) are uniformly distributed on the circumferential surface of the annular track (2); and a second connecting part (5) on the fixed hoop (3) is arranged corresponding to a first connecting part (4) arranged on the annular track (2).
4. The disposable cutting device for the bevel groove of the pipeline according to claim 2, wherein connecting pieces (501) are respectively arranged at two ends of the semicircular ring A (301) and the semicircular ring B (302), and the semicircular ring A (301) and the semicircular ring B (302) penetrate through the connecting pieces (501) through bolts (6) to be connected and fixed with nuts (7).
5. The disposable cutting device for the bevel groove of the pipeline according to claim 3, wherein the first connecting parts (4) are provided with four crossed parts which are symmetrically arranged, and the second connecting parts (5) and the first connecting parts (4) are correspondingly provided with four crossed parts which are symmetrically arranged.
6. The disposable cutting device for the bevel groove of the pipeline according to claim 3, wherein the second connecting part (5) is provided with a screw hole (502), and the first connecting part (4) is provided with an elliptical hole (401) for butting with the screw hole (502) on the second connecting part (5).
7. The disposable cutting device for the bevel groove of the pipeline according to claim 5, wherein the second connecting part (5) is provided with a screw hole (502), and the first connecting part (4) is provided with an elliptical hole (401) for butting with the screw hole (502) on the second connecting part (5).
8. The disposable cutting device for the bevel groove of the pipeline according to claim 6 or 7, wherein nuts (7) are respectively arranged on two sides of the first connecting portion (4) and the second connecting portion (5) which penetrate through the bolt (6), and on one hand, the disposable cutting device is used for limiting the positions of the first connecting portion (4) and the second connecting portion (5), and on the other hand, the disposable cutting device is used for controlling the distance and the included angle between the end face of the track where the first connecting portion (4) is located and the end face of the pipeline where the second connecting portion (5) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464206.4A CN111250816A (en) | 2018-12-03 | 2018-12-03 | Disposable cutting device for bevel groove of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464206.4A CN111250816A (en) | 2018-12-03 | 2018-12-03 | Disposable cutting device for bevel groove of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111250816A true CN111250816A (en) | 2020-06-09 |
Family
ID=70951965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811464206.4A Pending CN111250816A (en) | 2018-12-03 | 2018-12-03 | Disposable cutting device for bevel groove of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111250816A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2659300A1 (en) * | 1976-12-29 | 1978-07-13 | Ruhrgas Ag | Flame cutting machine - for cutting pipe elbows or pipes at any desired angle |
| US4414041A (en) * | 1982-01-22 | 1983-11-08 | Rusk Richard W | Guide system for flame cutting of pipe |
| US20020138995A1 (en) * | 2001-03-30 | 2002-10-03 | Dennis Dameron | Method and apparatus for aligning and cutting pipe |
| CN102407393A (en) * | 2011-09-15 | 2012-04-11 | 梅广庆 | Method and system for realizing quick connection of pipes |
| CN102653039A (en) * | 2011-03-02 | 2012-09-05 | 上海宣邦金属新材料科技有限公司 | Portable intelligent pipe cutting machine and method thereof |
| CN104964093A (en) * | 2015-04-30 | 2015-10-07 | 李智超 | Method for pipeline dead point tie-in and aligning device used for tie-in |
| CN205464707U (en) * | 2016-03-17 | 2016-08-17 | 浙江博凡动力装备股份有限公司 | Pipeline bevel connection cutting device |
| CN209078001U (en) * | 2018-12-03 | 2019-07-09 | 余继武 | A kind of disposable cutter device of pipeline angle groove |
-
2018
- 2018-12-03 CN CN201811464206.4A patent/CN111250816A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2659300A1 (en) * | 1976-12-29 | 1978-07-13 | Ruhrgas Ag | Flame cutting machine - for cutting pipe elbows or pipes at any desired angle |
| US4414041A (en) * | 1982-01-22 | 1983-11-08 | Rusk Richard W | Guide system for flame cutting of pipe |
| US20020138995A1 (en) * | 2001-03-30 | 2002-10-03 | Dennis Dameron | Method and apparatus for aligning and cutting pipe |
| CN102653039A (en) * | 2011-03-02 | 2012-09-05 | 上海宣邦金属新材料科技有限公司 | Portable intelligent pipe cutting machine and method thereof |
| CN102407393A (en) * | 2011-09-15 | 2012-04-11 | 梅广庆 | Method and system for realizing quick connection of pipes |
| CN104964093A (en) * | 2015-04-30 | 2015-10-07 | 李智超 | Method for pipeline dead point tie-in and aligning device used for tie-in |
| CN205464707U (en) * | 2016-03-17 | 2016-08-17 | 浙江博凡动力装备股份有限公司 | Pipeline bevel connection cutting device |
| CN209078001U (en) * | 2018-12-03 | 2019-07-09 | 余继武 | A kind of disposable cutter device of pipeline angle groove |
Non-Patent Citations (1)
| Title |
|---|
| 郭海云;刘迅之;张虹;李欣;孙建华;: "钢管斜截切割的数学推导与工程实践", 焊管, no. 05, 15 September 2007 (2007-09-15), pages 49 - 50 * |
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