CN112276468A - Pipeline welding rotation auxiliary device and pipeline welding method - Google Patents
Pipeline welding rotation auxiliary device and pipeline welding method Download PDFInfo
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- CN112276468A CN112276468A CN202011094976.1A CN202011094976A CN112276468A CN 112276468 A CN112276468 A CN 112276468A CN 202011094976 A CN202011094976 A CN 202011094976A CN 112276468 A CN112276468 A CN 112276468A
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- rotating shaft
- pipe fitting
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- driving
- hollow structure
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- 238000003466 welding Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims abstract description 26
- 239000011261 inert gas Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052786 argon Inorganic materials 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- 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
- B23K31/027—Making tubes with 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
- B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen
-
- 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 for a procedure covered by only one of the other main groups of this subclass
-
- 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
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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 discloses a pipeline welding rotation auxiliary device, which comprises a rack and a rotating shaft rotationally connected to the rack; a hollow structure capable of ventilating is arranged in the rotating shaft, and when a pipe fitting to be welded is arranged on the rotating shaft, the inner cavity of the pipe fitting can be communicated with the hollow structure; thereby rotating the rotating shaft to weld the pipe fittings and simultaneously introducing inert gas into the pipe fittings from the hollow structure. Also discloses a pipeline welding method, which comprises the following steps: mounting a pipe fitting to be welded on the upper part of a rotatable rotating shaft on a frame; rotating and ventilating: the power mechanism drives the rotating shaft to drive the pipe fitting to rotate, and meanwhile, inert gas is introduced into the inner cavity of the pipe fitting through a hollow structure arranged in the rotating shaft; a welding step: and welding the rotating pipe fittings. The rotary shaft of the rotary auxiliary device for pipeline welding is provided with a ventilation ring, so that argon can be filled into the rotary shaft simultaneously, and the welding process protection effect can be performed on the inner part of a pipe fitting.
Description
Technical Field
The invention belongs to the technical field of pipelines, and particularly relates to a pipeline welding rotation auxiliary device and a pipeline welding method.
Background
In the process of pipeline welding, a common positioner is used for welding, and the positioner is a special welding auxiliary device and is suitable for rotary welding displacement so as to obtain an ideal machining position and welding speed. The automatic welding machine can be used in cooperation with an operating machine and a welding machine to form an automatic welding center, and can also be used for workpiece deflection during manual operation. The worktable rotation adopts the stepless speed regulation of a frequency converter, and the speed regulation precision is high. The remote control box can realize remote operation on the workbench, and can also be connected with an operating machine and a welding machine control system to realize linkage operation; the positioner for welding plays a great role in improving the working efficiency in the welding process of the pipe fitting, but the positioner for welding cannot fill argon gas into the pipe fitting, so that the working procedures are increased, and the clamping operation of the pipe fitting is inconvenient. For this reason, development and improvement of an apparatus for welding pipes are required.
Disclosure of Invention
The invention aims to provide a pipeline welding rotation auxiliary device and a pipeline welding method, and aims to solve the problems in the background art.
In order to achieve the purpose, the specific technical scheme of the pipeline welding rotation auxiliary device and the pipeline welding method is as follows:
a pipeline welding rotation auxiliary device comprises a rack and a rotating shaft which is rotatably connected with the rack; a hollow structure capable of ventilating is arranged in the rotating shaft, and when a pipe fitting to be welded is arranged on the rotating shaft, the inner cavity of the pipe fitting can be communicated with the hollow structure; thereby rotating the rotating shaft to weld the pipe fittings and simultaneously introducing inert gas into the pipe fittings from the hollow structure.
Furthermore, the end part of the rotating shaft is connected with a positioning fixture which can be used for fixing the pipe fitting, a fixture through hole is formed in the positioning fixture, and the positioning fixture and the pipe fitting to be welded are connected in a mutual inserting mode, so that the inner cavity of the pipe fitting is communicated with the fixture through hole and the hollow structure.
Furthermore, the upper ends of the positioning fixture and the rotating shaft are detachably connected through screws, the matching end of the positioning fixture is of a cylindrical structure, and the outer diameter of the matching end of the positioning fixture and the inner diameter of the pipe to be welded are in clearance fit insertion connection.
Furthermore, a power mechanism capable of driving the rotating shaft to automatically rotate is further installed on the rack, the output end of the power mechanism is connected with the rotating shaft, and inert gas is introduced from the hollow structure while the power mechanism drives the rotating shaft to rotate to weld the pipe fitting.
Further, the external diameter of rotation axis rotates to cup joint the ring of ventilating, and the ring slot that link up with hollow structure is seted up to the inside wall of ventilating the ring, the air inlet with ring slot through connection is seted up to the lateral wall of ventilating the ring, lets in inert gas from the air inlet, passes through ring slot, hollow structure in proper order, treats the welded pipe fitting.
Furthermore, the hollow structure is an L-shaped tubular groove structure, the vertical section of the L-shaped tubular groove is coaxially arranged with the rotating shaft and the circular groove, and the horizontal section of the L-shaped tubular groove is vertically arranged with the vertical section of the L-shaped tubular groove.
Furthermore, the power mechanism comprises a motor, the motor is fixed on the frame, and the output end of the motor is connected to the rotating shaft through a transmission assembly in a driving manner.
Furthermore, the transmission assembly comprises a driving shaft assembly and a driven shaft assembly, the driving shaft assembly is in transmission connection with the driven shaft assembly through a chain, and an output shaft of the driven shaft assembly is connected with the rotating shaft.
Furthermore, the driving shaft assembly comprises a driving fixing plate connected to the lower end face of the top plate of the rack, a driving support plate connected to the lower end of the driving fixing plate, a driving bottom plate connected to the lower end of the driving support plate, and a driving chain wheel rotatably connected to the driving bottom plate; the driving chain wheel is connected to the transmission shaft of the motor, the driving chain wheel is connected with the driven shaft assembly through chain driving, and the outer wall of the motor is connected to the lower end of the driving bottom plate.
Furthermore, the driven shaft assembly comprises a driven chain wheel connected to the chain, a driven wheel shaft coaxially connected with the driven chain wheel, a driven bottom plate rotationally connected with the driven wheel shaft, a driven support plate connected to the driven bottom plate, and a driven fixing plate connected to the driven support plate; the driven wheel shaft is simultaneously and rotatably connected to the driven base plate and the driven fixing plate which are arranged in parallel.
Furthermore, a speed regulator is further mounted on the frame and electrically connected to the motor.
A pipeline welding method comprises the following steps of,
a feeding step: mounting a pipe fitting to be welded on the upper part of a rotatable rotating shaft on a frame;
rotating and ventilating: the power mechanism drives the rotating shaft to drive the pipe fitting to rotate, and meanwhile, inert gas is introduced into the inner cavity of the pipe fitting through a hollow structure arranged in the rotating shaft;
a welding step: and welding the rotating pipe fittings.
Furthermore, a ventilation ring is rotatably sleeved on the rotating shaft in the rotating and ventilation steps, a circular ring groove is formed in the inner side wall of the ventilation ring, and an air inlet is formed in the side wall of the ventilation ring; and the inert gas is introduced from the gas inlet, passes through the circular groove and the hollow structure, and finally reaches the inner cavity of the pipe fitting to be welded.
Compared with the prior art, the invention has the following beneficial effects:
1. the rotary shaft of the rotary auxiliary device for pipeline welding is provided with the ventilation ring, so that argon can be filled into the rotary shaft simultaneously, the welding process protection is performed on the inner part of the pipe fitting, the procedures are reduced, and the effect of protecting the pipe fitting can be achieved.
2. A matched positioning clamp is designed according to the size of an inner hole of the pipe fitting, and the pipe is positioned in an inserting mode, so that the convenience in feeding of the pipe fitting is ensured; and the pipe fitting welding is accomplished the back thermal expansion, and pipe fitting hole size and positioning fixture clearance are big, and the work piece can easily be taken off, guarantees that the clamping is convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the main drive shaft assembly and motor mounting arrangement;
FIG. 3 is a block diagram of the driven shaft assembly;
FIG. 4 is a perspective view of tubing and vent related structures;
FIG. 5 is a full sectional view of FIG. 4;
fig. 6 is a view showing the structure of a vent ring.
The reference numbers in the figures illustrate: the device comprises a rack 1, a speed regulator 2, a driving shaft assembly 3, a chain 4, a driven shaft assembly 5, a rotating shaft 6, a vent ring 7, a positioning clamp 8, a pipe fitting 9, a motor 10 and a welding line 11; a drive sprocket 31, a drive bottom plate 32, a drive support plate 33, and a drive fixing plate 34; a driven sprocket 51, a driven base plate 52, a driven support plate 53, a driven fixing plate 54, a bearing 55 and a driven wheel shaft 56; hollow structure 61, air inlet 71, annular groove 72.
Detailed Description
For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-6, which illustrate the invention.
Referring to fig. 1, a pipeline welding rotation auxiliary device is designed, and the device comprises a frame 1, a speed regulator 2, a driving shaft assembly 3, a chain 4, a driven shaft assembly 5, a rotating shaft 6, a vent ring 7, a positioning clamp 8 and the like. The main structure comprises a frame 1 and a rotating shaft 6 which is rotatably connected with the frame 1; have seted up hollow structure 61 that can ventilate in rotation axis 6, it is all can to rotate rotation axis 6 and can adopt manual rotation or automatic electric drive, can with rotation axis 6 with treat the direct grafting of tip of welded pipe fitting 9, for convenient ann tears pipe fitting 9 open, protection rotation axis 6, can have positioning fixture 8 that can be used to fixed pipe fitting 9 at rotation axis 6's end connection, set up the anchor clamps through-hole on positioning fixture 8, positioning fixture 8 with treat to connect through the mode of pegging graft each other between the welded pipe fitting 9, thereby make pipe fitting 9 inner chamber and anchor clamps through-hole, hollow structure 61 three communicates all can. When the pipe 9 to be welded is inserted into the rotating shaft 6, the rotating shaft 6 is rotated to weld the pipe 9, and inert gas is introduced into the pipe 9 from the hollow structure 61 to protect the interior of the pipe 9 during the welding process, for example, the inert gas is argon.
The specific ventilation path in this embodiment is: the outer diameter of the rotating shaft 6 is rotatably sleeved with the ventilation ring 7, as shown in fig. 6, the inner side wall of the ventilation ring 7 is provided with a circular groove 72 communicated with the hollow structure 61, the side wall of the ventilation ring 7 is provided with an air inlet 71 communicated with the circular groove 72, and inert gas is introduced from the air inlet 71 and sequentially passes through the circular groove 72, the hollow structure 61 and the pipe fitting 9 to be welded. Wherein, hollow structure 61 is L type tubulose groove structure, and the vertical section of L type tubulose groove sets up with rotation axis 6, ring groove 72 coaxial line, and the horizontal section of L type tubulose groove sets up with the vertical section of L type tubulose groove is perpendicular.
In the embodiment, an automatic driving mode is adopted, a power mechanism capable of driving the rotating shaft 6 to automatically rotate is further mounted on the frame 1, the power mechanism is electrically connected with the speed regulator 2, the rotating linear speed can be adjusted according to working requirements, the welding speed is further matched, the output end of the power mechanism is connected with the rotating shaft 6, and inert gas is introduced from the hollow structure 61 while the power mechanism drives the rotating shaft 6 to rotate to weld the pipe fitting 9. Wherein, power unit includes motor 10, and motor 10 is fixed in on the frame 1, the output of motor 10 passes through driving shaft subassembly 3 and driven shaft subassembly 5, be connected through 4 transmissions of chain between driving shaft subassembly 3 and the driven shaft subassembly 5, it rotates to drive driven shaft subassembly 5 when driving shaft subassembly 3, driven shaft subassembly 5's output shaft rotation axis 6 drives rotation axis 6 and rotates, rotation axis 6 rotates the rotation that drives the pipe fitting 9 that treats welding on it, operating personnel welds the pipeline along welding seam 11.
As shown in fig. 1; the driving shaft assembly 3 is fixed on the rack 1 through screws, the driven shaft assembly 5 is fixed on the rack 1 through screws, and the driving shaft assembly 3 and the driven shaft assembly 5 are located on the same axis and are driven through the chain 4.
As shown in fig. 2, the driving shaft assembly 3 includes a driving fixing plate 34 connected to a lower end surface of a top plate of the frame 1, a driving support plate 33 connected to a lower end of the driving fixing plate 34, a driving base plate 32 connected to a lower end of the driving support plate 33, and a driving sprocket 31 rotatably connected to the driving base plate 32; the driving chain wheel 31 is connected to the transmission shaft of the motor 10, the driving chain wheel 31 is connected with the driven shaft assembly 5 in a driving mode through the chain 4, and the outer wall of the motor 10 is connected to the lower end of the driving bottom plate 32.
As shown in fig. 3, the driven shaft assembly 5 comprises a driven sprocket 51 connected to the chain 4, a driven axle 56 coaxially connected with the driven sprocket 51, a driven base plate 52 rotatably connected with the driven axle 56, a driven support plate 53 connected with the driven base plate 52, and a driven fixing plate 54 connected with the driven support plate 53; the driven axle 56 is simultaneously rotatably connected to two driven base plates 52 and a driven fixing plate 54 which are arranged in parallel with each other. The rotating shaft 6 is fixed on the driven shaft assembly 5; the ventilation ring 7 is in clearance fit with the rotating shaft 6, and the ventilation ring 7 is arranged on the rotating shaft 6 and can rotate on the rotating shaft 6; positioning fixture 8 is installed on rotation axis 6, and pipe fitting 9 presss from both sides tightly through the hole and the cooperation of positioning fixture 8.
Aiming at the design, the pipeline welding method mainly comprises three steps of feeding, rotating, ventilating and welding: the rotating and ventilating step is that the rotating shaft 6 is driven by a power mechanism to drive the pipe fitting 9 to rotate, meanwhile, inert gas is introduced through a hollow structure 61 arranged in the rotating shaft 6, and then the inert gas enters the inner cavity of the pipe fitting 9 through a clamp through hole formed in the positioning clamp 8; finally, the rotating pipe 9 is welded.
As shown in fig. 4, the principle of the loading installation is as follows: the pipe fitting 9 is positioned and clamped with the positioning clamp 8 through an inner hole, the positioning clamp 8 adopts an h8 tolerance zone, and the inner hole of the pipe fitting 9 adopts an F8 tolerance zone. Before welding operation, a small gap is formed between the inner hole of the pipe fitting 9 and the positioning clamp 8, the pipe fitting 9 can be easily clamped on the positioning clamp 8 through the gap, and the rotating shaft 6 and the pipe fitting 9 cannot move relatively in the rotating process; after the welding operation, because the welding seam has produced the heat among the welding process, and the heat on the pipe fitting 9 is more than positioning fixture's heat, and pipe fitting 9 is heated the inflation size and is greater than positioning fixture, has consequently increased 9 holes of pipe fitting and positioning fixture 8's clearance, and pipe fitting 9 can easily follow positioning fixture 8 and take off.
A matched positioning clamp is designed according to the size of the inner hole of the pipe fitting 9, the size matching of the pipe fitting inner hole and the positioning clamp 8 in a cooling state is strictly controlled, so that the clearance between the pipe fitting 9 inner hole and the clamp is small, and the pipe fitting 9 and the positioning clamp 8 are ensured not to slip; the pipe fitting 9 is heated and expanded after welding, the size of the inner hole of the pipe fitting 9 and the clearance of the positioning fixture 8 are large, a workpiece can be easily taken down, and clamping is convenient to guarantee.
Referring to fig. 5, the welding process and venting process are as follows: because the ventilation ring 7 is in clearance fit with the rotating shaft 6, when the rotating shaft 6 rotates, the ventilation ring 7 rotates in the opposite direction relative to the rotating shaft 6, a sealing ring can be clamped between the rotating shaft 6 and the ventilation ring 7, the ventilation ring 7 is static relative to the rack 1, argon enters the ventilation ring 7 through the air inlet 71, the L-shaped hollow structure 61 passing through the rotating shaft 6 is communicated with the circular ring groove 72 of the ventilation ring 7, the argon of the ventilation ring 7 can enter the positioning fixture 8 through a horizontal section hole of the rotating shaft 6 and then enters the pipe fitting 9, and therefore welding under the protection condition of the pipe fitting 9 is achieved.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (13)
1. A pipeline welding rotation auxiliary device comprises a rack (1) and a rotating shaft (6) which is rotatably connected with the rack (1);
the method is characterized in that: a hollow structure (61) capable of ventilating is arranged in the rotating shaft (6), and when a pipe fitting (9) to be welded is installed on the rotating shaft (6), the inner cavity of the pipe fitting (9) can be communicated with the hollow structure (61); thereby rotating the rotating shaft (6) to weld the pipe (9) and simultaneously introducing inert gas into the pipe (9) from the hollow structure (61).
2. The rotating auxiliary device for pipeline welding according to claim 1, wherein a positioning fixture (8) capable of being used for fixing the pipe fitting (9) is connected to the end of the rotating shaft (6), a fixture through hole is formed in the positioning fixture (8), and the positioning fixture (8) and the pipe fitting (9) to be welded are connected in a mutual insertion mode, so that the inner cavity of the pipe fitting (9) is communicated with the fixture through hole and the hollow structure (61).
3. The pipeline welding rotating auxiliary device according to claim 2, wherein the positioning fixture (8) is detachably connected with the upper end of the rotating shaft (6) through a screw, the matching end of the positioning fixture (8) is of a cylindrical structure, and the outer diameter of the matching end of the positioning fixture (8) and the inner diameter of the pipe (9) to be welded are inserted and connected in a clearance fit mode.
4. The pipeline welding rotation auxiliary device according to claim 3, wherein the frame (1) is further provided with a power mechanism capable of driving the rotating shaft (6) to rotate automatically, the output end of the power mechanism is connected with the rotating shaft (6), and inert gas is introduced from the hollow structure (61) while the power mechanism drives the rotating shaft (6) to rotate the welding pipe (9).
5. The pipeline welding rotation assisting device according to claim 4, wherein a ventilation ring (7) is rotatably sleeved on the outer diameter of the rotating shaft (6), a circular groove (72) communicated with the hollow structure (61) is formed in the inner side wall of the ventilation ring (7), an air inlet (71) communicated with the circular groove (72) is formed in the side wall of the ventilation ring (7), and inert gas introduced from the air inlet (71) passes through the circular groove (72), the hollow structure (61), the positioning clamp (8) and the pipe fitting (9) to be welded.
6. The pipe welding rotation assisting device according to claim 5, wherein the hollow structure (61) is an L-shaped tubular groove structure, a vertical section of the L-shaped tubular groove is coaxially arranged with the rotating shaft (6) and the circular groove (72), and a horizontal section of the L-shaped tubular groove is vertically arranged with the vertical section of the L-shaped tubular groove.
7. The pipe welding rotation assisting device according to claim 6, wherein the power mechanism comprises a motor (10), the motor (10) is fixed on the frame (1), and an output end of the motor (10) is drivingly connected to the rotating shaft (6) through a transmission assembly.
8. The pipeline welding rotation assisting device according to claim 7, wherein the transmission assembly comprises a driving shaft assembly (3) and a driven shaft assembly (5), the driving shaft assembly (3) and the driven shaft assembly (5) are in transmission connection through a chain (4), and an output shaft of the driven shaft assembly (5) is connected with the rotating shaft (6).
9. The pipe welding rotation assisting device according to claim 8, wherein the driving shaft assembly (3) comprises a driving fixing plate (34) connected to a lower end surface of a top plate of the machine frame (1), a driving support plate (33) connected to a lower end of the driving fixing plate (34), a driving bottom plate (32) connected to a lower end of the driving support plate (33), and a driving sprocket (31) rotatably connected to the driving bottom plate (32); the driving chain wheel (31) is connected to a transmission shaft of the motor (10), the driving chain wheel (31) is in driving connection with the driven shaft assembly (5) through the chain (4), and the outer wall of the motor (10) is connected to the lower end of the driving bottom plate (32).
10. The pipe welding rotation assist device according to claim 9, wherein the driven shaft assembly (5) comprises a driven sprocket (51) connected to the chain (4), a driven wheel shaft (56) coaxially connected to the driven sprocket (51), a driven base plate (52) rotatably connected to the driven wheel shaft (56), a driven support plate (53) connected to the driven base plate (52), and a driven fixing plate (54) connected to the driven support plate (53); the driven wheel shaft (56) is simultaneously and rotatably connected to two driven base plates (52) and a driven fixing plate (54) which are arranged in parallel.
11. The pipe welding rotation aid of claim 7 or 8, wherein the frame (1) is further provided with a speed regulator (2), and the speed regulator (2) is electrically connected to the motor (10).
12. A pipeline welding method is characterized by comprising the following steps,
a feeding step: a pipe fitting (9) to be welded is arranged on the upper part of a rotatable rotating shaft (6) on a frame (1);
rotating and ventilating: the power mechanism drives the rotating shaft (6) to drive the pipe fitting (9) to rotate, and meanwhile, inert gas is introduced into the inner cavity of the pipe fitting (9) through a hollow structure (61) arranged in the rotating shaft (6);
a welding step: welding the rotating pipe fitting (9).
13. The pipeline welding method according to claim 12, wherein a ventilation ring (7) is rotatably sleeved on the rotating shaft (6) in the rotating and ventilation step, a circular groove (72) is formed in the inner side wall of the ventilation ring (7), and an air inlet (71) is formed in the side wall of the ventilation ring (7); the inert gas is introduced from the gas inlet (71), passes through the annular groove (72) and the hollow structure (61), and finally reaches the inner cavity of the pipe fitting (9) to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094976.1A CN112276468A (en) | 2020-10-12 | 2020-10-12 | Pipeline welding rotation auxiliary device and pipeline welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094976.1A CN112276468A (en) | 2020-10-12 | 2020-10-12 | Pipeline welding rotation auxiliary device and pipeline welding method |
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| CN112276468A true CN112276468A (en) | 2021-01-29 |
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| CN202011094976.1A Pending CN112276468A (en) | 2020-10-12 | 2020-10-12 | Pipeline welding rotation auxiliary device and pipeline welding method |
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| CN206966950U (en) * | 2017-07-14 | 2018-02-06 | 沈阳晶品机电设备有限公司 | A kind of square opening flange connection |
| CN207642573U (en) * | 2017-11-10 | 2018-07-24 | 陕西隆翔停车设备集团有限公司 | A kind of fixture for the weldering of bipitch connecting rod group |
| CN111741829A (en) * | 2018-03-02 | 2020-10-02 | 利奥·拉尔卡 | Device for welding branch and extension pipes |
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2020
- 2020-10-12 CN CN202011094976.1A patent/CN112276468A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271985A (en) * | 1996-04-03 | 1997-10-21 | Iwai Tekkosho:Kk | Welding method using shielding gas and device for feeding shielding gas |
| CN201922215U (en) * | 2011-01-30 | 2011-08-10 | 广州美亚股份有限公司 | Welding fixture for pipe fitting |
| CN103639637A (en) * | 2013-11-06 | 2014-03-19 | 高密市万和车桥有限公司 | Stainless steel tube butt welding machine |
| CN205465025U (en) * | 2016-03-25 | 2016-08-17 | 河野精机(大连)有限公司 | Mouth of pipe ball tight positioner that expands |
| CN206966950U (en) * | 2017-07-14 | 2018-02-06 | 沈阳晶品机电设备有限公司 | A kind of square opening flange connection |
| CN207642573U (en) * | 2017-11-10 | 2018-07-24 | 陕西隆翔停车设备集团有限公司 | A kind of fixture for the weldering of bipitch connecting rod group |
| CN111741829A (en) * | 2018-03-02 | 2020-10-02 | 利奥·拉尔卡 | Device for welding branch and extension pipes |
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Application publication date: 20210129 |
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| RJ01 | Rejection of invention patent application after publication |