CN115138943A - Multifunctional underwater TIG electric arc repair welding drainage device and repair method - Google Patents
Multifunctional underwater TIG electric arc repair welding drainage device and repair method Download PDFInfo
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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
- B23K9/00—Arc welding or cutting
- B23K9/0061—Underwater arc welding
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention provides a multifunctional underwater TIG electric arc repair welding drainage device and a repair method, relates to the technical field of underwater electric arc welding and underwater electric arc additive repair equipment, and aims to solve the problem that a drainage device for local dry-method underwater TIG electric arc additive repair suitable for corner positions does not exist in the prior art. The device comprises a drainage cover main body, a connecting mechanism, an air inlet mechanism, a welding mechanism, a monitoring mechanism and an illuminating mechanism, wherein the air inlet mechanism, the welding mechanism, the monitoring mechanism and the illuminating mechanism are arranged on the drainage cover main body; the air inlet mechanism comprises a high-pressure air inlet module and a low-pressure air inlet module, the drainage gas can be introduced into the drainage cover main body through the low-pressure air inlet module, and the high-pressure gas is introduced into the drainage cover main body through the high-pressure air inlet module after the drainage of the area to be welded is stable so as to sweep water drops in the area to be welded; the monitoring mechanism comprises a binocular module, a gas pressure sensor and a temperature and humidity sensor.
Description
Technical Field
The invention relates to the technical field of underwater arc welding and underwater arc additive repair equipment, in particular to a multifunctional underwater TIG arc repair welding drainage device and a repair method.
Background
With the increasing demand of human beings on energy, ocean oil gas, nuclear power and inland water resource are developed into main new sources of human energy, the manufacturing, connection and remanufacturing of in-service structural members of underwater steel structural members in related engineering can not be realized by the participation of underwater processing technology, and a large number of right-angle welding seams exist in a large number of underwater structures and need to be welded and remanufactured. The underwater welding technology becomes an essential key technology for underwater engineering construction and maintenance.
Underwater welding techniques include wet and dry underwater laser welding and underwater arc welding. The TIG arc welding technology has the following advantages: the TIG arc welding process is widely applied at present, the technology is mature, the cost is low, and the forming maintenance of most materials can be realized; the TIG arc maintenance process ensures the welding speed, the quality of a welding joint and the accessibility of a welding seam and avoids splashing, thereby being an optimal welding process. The local dry underwater welding system is easy to simplify and build, is particularly suitable for the maintenance of large and small equipment, improves the welding efficiency to a great extent and reduces the working cost. Therefore, the local dry method underwater TIG arc welding is regarded as an underwater remanufacturing technology with huge development and application potential and receives more and more extensive attention, and as the demands of welding and remanufacturing at various positions of an underwater structural member are gradually increased, the underwater welding demands can not be completely met only by a welding mode aiming at a plane position, wherein the welding and remanufacturing aiming at the corner junction of the structural member becomes a new research focus.
In order to ensure the quality of underwater welding and additive repair, a local dry environment of a workpiece to-be-additively-welded area needs to be created, and a set of drainage device for local dry-method underwater TIG electric arc additive repair suitable for corner positions does not exist in the prior art.
Disclosure of Invention
In view of the above, the present invention aims to provide a multifunctional underwater TIG arc repair welding drainage device and a repair method, so as to solve the technical problem that no drainage device for local dry underwater TIG arc additive repair is available in the prior art.
In order to achieve the purpose, the invention provides a multifunctional underwater TIG electric arc repairing welding drainage device which comprises a drainage cover main body, a connecting mechanism, an air inlet mechanism, a welding mechanism, a monitoring mechanism and an illuminating mechanism, wherein the air inlet mechanism, the welding mechanism, the monitoring mechanism and the illuminating mechanism are arranged on the drainage cover main body;
the air inlet mechanism comprises a high-pressure air inlet module and a low-pressure air inlet module, the drainage gas can be introduced into the drainage cover main body through the low-pressure air inlet module, and the high-pressure gas is introduced into the drainage cover main body through the high-pressure air inlet module after the drainage of the area to be welded is stable so as to sweep water drops in the area to be welded;
monitoring mechanism includes two mesh modules, gas pressure sensor and temperature and humidity sensor, lighting mechanism provides the illumination for the welding cavity, two mesh modules are used for observing the welding condition in the welding cavity, gas pressure sensor with temperature and humidity sensor all set up in on the drainage cover main part, be used for monitoring gas pressure and temperature and humidity change in the welding cavity.
As a further improvement of the invention, the drainage cover main body comprises a drainage cover body and a drainage cover end cover, the drainage cover end cover is detachably fixed on the drainage cover body, a sealing structure is arranged between the drainage cover end cover and the drainage cover body, the welding cavity is formed inside the drainage cover body, the end part of the drainage cover body far away from the drainage cover end cover is of an opening structure, the connecting mechanism is connected with the drainage cover body, and the air inlet mechanism, the welding mechanism, the monitoring mechanism and the illuminating mechanism are all installed on the drainage cover end cover.
As a further improvement of the invention, the drainage cover body comprises a drainage cover middle part and a drainage cover lower part connected with the drainage cover middle part, the drainage cover middle part is provided with a connecting hole for connecting with the connecting mechanism, the inner wall of the drainage cover lower part is provided with a profiling sealing sponge, the profiling sealing sponge is installed on the inner wall of the drainage cover lower part in an extruding way through a profiling heat insulation steel ring, and the profiling sealing sponge and the profiling heat insulation steel ring are both arranged in the welding cavity.
As a further improvement of the present invention, the welding mechanism includes a welding gun fixture, a TIG welding gun, a wire feeding pipe, a synchronous gas blowing pipe, and a fixing frame, the welding gun fixture is mounted on the end cover of the drain cover, a welding gun mounting hole is formed on the welding gun fixture, a synchronous gas blowing pipe mounting hole and a wire feeding pipe mounting hole are formed on the end cover of the drain cover, the fixing frame is disposed in the welding chamber, the TIG welding gun can be mounted on the fixing frame through the welding gun mounting hole, the wire feeding pipe can be mounted on the fixing frame through the wire feeding pipe mounting hole, the synchronous gas blowing pipe can be mounted on the fixing frame through the synchronous gas blowing pipe mounting hole, and the wire feeding pipe and the synchronous gas blowing pipe are located on both sides of the TIG welding gun.
As a further improvement of the invention, the low-pressure air inlet module comprises a low-pressure drainage gas quick-connection plug, a low-pressure drainage gas inlet hole is formed in the end cover of the drainage cover, and the low-pressure drainage gas quick-connection plug is arranged at the low-pressure drainage gas inlet hole;
the high-pressure air inlet module comprises a high-pressure drainage gas quick-connection plug and a high-pressure gas spray pipe, a high-pressure drainage gas inlet hole is formed in the end cover of the drainage cover, the high-pressure drainage gas quick-connection plug is installed at the high-pressure drainage gas inlet hole, and the high-pressure gas spray pipe is communicated with the high-pressure drainage gas quick-connection plug.
As a further improvement of the invention, the number of the low-pressure drainage gas inlet holes is four, the low-pressure drainage gas inlet holes are distributed on the end cover of the drainage cover in a rectangular shape by taking the TIG welding gun as a center, the number of the high-pressure drainage gas inlet holes is two, the high-pressure drainage gas inlet holes are symmetrically arranged on two sides of the TIG welding gun, drainage gas can be introduced into the drainage cover main body through the low-pressure drainage gas quick-welding plug, and after local drainage of a region to be welded is stable, high-pressure gas entering the high-pressure drainage gas quick-welding plug can be sprayed into the drainage cover main body through the high-pressure gas spray pipe.
As a further improvement of the invention, two binocular module mounting holes and two lighting mechanism mounting holes are formed in the end cover of the drainage cover, the two lighting mechanisms and the two binocular modules are distributed in a rectangular shape by taking a TIG welding gun as a center, wherein the two lighting mechanisms are distributed according to a diagonal line, and the two binocular modules are distributed according to the other diagonal line.
As a further improvement of the invention, the connecting mechanism comprises a connecting part and a mounting part, the mounting part and the drainage cover main body form a detachable fixed connection through the connecting part, the mounting part and the underwater motion platform are detachably and fixedly connected, and the connecting part is fixedly connected with the mounting part.
As a further improvement of the invention, the profiling sealing sponge is a compressible flame-retardant sponge material, and the profiling sealing sponge is connected with the inner wall of the lower part of the drainage cover in a gluing mode.
The underwater TIG electric arc repairing and repairing method applies the multifunctional underwater TIG electric arc repairing welding drainage device and comprises the following steps:
s1: connecting and debugging the multifunctional underwater TIG electric arc repair welding drainage device, then installing the device on an underwater motion platform, turning on the illuminating mechanism, the binocular module and the gas pressure sensor to complete the water inlet action, and introducing drainage gas into the drainage cover main body through the low-pressure gas inlet module;
s2: moving the underwater motion platform to a region to be welded, observing the drainage condition in the multifunctional underwater TIG electric arc repairing welding drainage device through the binocular module, turning on the temperature and humidity sensor, and determining a welding starting point after the drainage condition is stable; at the moment, high-pressure gas is introduced into the drainage cover main body through the high-pressure gas inlet module, and the residual water drops and other impurities in the area to be welded are swept through the readings of the binocular module and the temperature and humidity sensor to form a relatively dry and clean welding space;
s3: after the readings of the temperature and humidity sensor are stable, setting welding parameters according to welding requirements, observing the moving condition of the welding position and the shape of a molten pool through the binocular module after arc starting, and timely adjusting the position of a welding mechanism and the air flow in a welding chamber according to different water depths and by combining the readings of the temperature and humidity sensor, the gas pressure sensor and the observation condition of the binocular module in the welding process;
s4: after the welding work is finished, the multifunctional underwater TIG electric arc repairing welding drainage device finishes the water outlet action along with the underwater moving platform.
The multifunctional underwater TIG electric arc repairing welding drainage device provided by the invention aims at the welding drainage device at the corner position, the shape and the angle of the corner of the welding drainage device can meet the requirements of different corner positions to be repaired through the adjustment of the profiling structure at the lower part of the drainage cover main body, and the multifunctional underwater TIG electric arc repairing welding drainage device has higher practicability; the welding drainage device adjusts the gas flow by monitoring the gas pressure in the welding cavity in real time through the gas pressure sensor and the temperature and humidity sensor and the temperature change in the drainage cover main body in the welding process, prevents the sealing drainage performance from being reduced due to too small gas flow and prevents the molten pool from being damaged due to too large gas flow, thereby achieving the best forming effect, being suitable for different water depths and welding environment temperatures, and having better adaptability; the welding water device is provided with a binocular module, a front camera of the welding water device is used for aligning the position to be welded, a rear camera of the welding water device is used for observing the welding seam forming condition and the shape of a molten pool, arc breakage and wire sticking are prevented, real-time tracking of the welding seam is realized, and controllability of a welding process is improved, so that work failure rate is reduced, and work efficiency is improved; the welding drainage device integrates various sensors, so that the manual re-inspection cost can be effectively saved, and the consumption of protective gas is reduced to the maximum extent, so that the welding cost is effectively reduced, and the welding quality is improved; the underwater electric arc additive manufacturing device has the advantages of reasonable structure, adaptability to corner positions, sufficient working chamber space and good watertight performance, is suitable for underwater electric arc additive manufacturing workpieces in shallow water environments and deep water environments, and completes underwater environment repair and electric arc welding of structural members.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a multifunctional underwater TIG arc repair welding drainage device provided by an embodiment of the invention;
FIG. 2 is a schematic bottom view of a multifunctional underwater TIG arc repair welding drainage device provided by an embodiment of the invention;
FIG. 3 is a schematic structural view of a drain cover body according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a drain cover body according to an embodiment of the present invention;
FIG. 5 is a schematic view of an end cap of a drain cover provided by an embodiment of the invention;
FIG. 6 is a schematic view of a welding mechanism provided by an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a binocular module provided in an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a fixing frame according to an embodiment of the present invention;
FIG. 9 is a schematic view of a torch fixture according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a connection mechanism provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic structural view of a profiling heat insulation steel ring provided by the embodiment of the invention;
FIG. 12 is a schematic structural view of a conformable sealing sponge provided in accordance with embodiments of the present invention;
FIG. 13 is a schematic view of the multifunctional underwater TIG arc repair welding drainage device according to an embodiment of the present invention;
fig. 14 is another schematic view of the working state of the multifunctional underwater TIG arc repair welding drainage device provided by the embodiment of the invention.
Reference numerals: 1. a connecting mechanism; 110. an installation part; 120. a connecting portion; 2. a welding gun clamp; 3. a drain cover end cap; 31. installing a threaded hole; 32. a low pressure drainage gas inlet; 33. a lighting mechanism mounting hole; 34. a synchronous air blowing pipe mounting hole; 35. a temperature and humidity sensor mounting hole; 36. a gas pressure sensor mounting hole; 37. mounting holes for the binocular modules; 38. a high pressure drainage gas inlet; 39. a wire feeding pipe mounting hole; 4. a drain cover body; 41. the middle part of the drainage cover; 411. connecting holes; 42. the lower part of the drainage cover; 5. profiling sealing sponge; 6. profiling a heat insulation steel ring; 7. a synchronous air blowing pipe; 8. an illumination mechanism; 9. a TIG welding torch; 10. a wire feeding pipe; 11. a high pressure gas nozzle; 12. a fixed mount; 13. a binocular module; 131. a camera; 132. an attenuation sheet; 133. an optical filter; 134. a splash-proof lens; 135. a protective shell; 14. welding parts; 15. a gas pressure sensor; 16. a temperature and humidity sensor; 17. a low-pressure drainage gas quick-connection plug; 18. high-pressure drainage gas quick-connection plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Referring to fig. 1 to 14, the invention provides a multifunctional underwater TIG electric arc repair welding drainage device, which comprises a drainage cover main body, a connecting mechanism 1, an air inlet mechanism, a welding mechanism, a monitoring mechanism and a lighting mechanism 8, wherein the air inlet mechanism, the welding mechanism, the monitoring mechanism and the lighting mechanism are arranged on the drainage cover main body; the air inlet mechanism comprises a high-pressure air inlet module and a low-pressure air inlet module, the drainage gas can be introduced into the drainage cover main body through the low-pressure air inlet module, and the high-pressure gas is introduced into the drainage cover main body through the high-pressure air inlet module after the drainage of the area to be welded is stable so as to sweep water drops in the area to be welded; monitoring mechanism includes two mesh modules 13, gas pressure sensor 15 and temperature and humidity sensor 16, and lighting mechanism 8 provides the illumination for the welding cavity, and two mesh modules 13 are used for observing the welding condition in the welding cavity, and gas pressure sensor 15 and temperature and humidity sensor 16 all set up on the drainage cover main part for gas pressure and the humiture change in the monitoring welding cavity.
The drain cover main part in this embodiment includes drain cover body 4 and drain cover end cover 3, and drain cover end cover 3 detachable fixes on drain cover body 4, and is concrete, is provided with installation screw hole 31 on the drain cover end cover 3, and can realize being connected through the bolt between the drain cover body 4. Be provided with seal structure between drainage cover end cover 3 and the drainage cover body 4, this seal structure can be the sealing silica gel circle, and the inside welding cavity that forms of drainage cover body 4, and the tip of keeping away from drainage cover end cover 3 on the drainage cover body 4 is open structure, and open structure is linked together with the welding cavity, and coupling mechanism 1 is connected with drainage cover body 4, and air inlet mechanism, welding mechanism, monitoring agency and lighting mechanism 8 all install on drainage cover end cover 3.
Specifically, the drain cover body 4 in this embodiment includes the drain cover middle part 41 and the drain cover lower part 42 that is connected with the drain cover middle part 41, and the drain cover middle part 41 is provided with the connecting hole 411 that is used for being connected with coupling mechanism 1, is provided with the profile modeling sealing sponge 5 on the inner wall of drain cover lower part 42, and the thermal-insulated steel ring 6 of profile modeling is connected with the inner wall of drain cover lower part 42 through the profile modeling sealing sponge 5, and the thermal-insulated steel ring 6 of profile modeling sealing sponge 5 and profile modeling all sets up in the welding chamber. The drainage gas can effectively drain water out of the welding chamber through the profiling sealing sponge 5; the profile modeling heat insulation steel ring 6 and the profile modeling sealing sponge 5 are installed to extrude the drainage cover body 4. It should be noted that, in order to accommodate different weldments 14, the lower portion 42 of the drain cover in this embodiment can be shaped to accommodate different angles of corner positions to be welded. The shape of the profiling sealing sponge 5 and the profiling heat insulation steel ring 6 can be changed according to the angle of the corner positions to be welded, so as to adapt to the structure of the lower part 42 of the drainage cover.
In the embodiment, the lighting mechanism 8 adopts an LED lighting lamp, the lamp body of the lighting mechanism is made of stainless steel, the protection grade is IP68, the profiling sealing sponge 5 is made of a compressible flame-retardant sponge material, the profiling sealing sponge 5 is installed on the inner wall of the lower portion 42 of the drain cover through the profiling heat-insulating steel ring 6 in an extruding manner, and in order to further enhance the fixation between the profiling heat-insulating steel ring 6, the profiling sealing sponge 5 and the lower portion 42 of the drain cover, preferably, the profiling sealing sponge 5 and the inner wall of the lower portion 42 of the drain cover and the profiling heat-insulating steel ring 6 and the profiling sealing sponge 5 can be connected in a gluing manner.
In the embodiment, the welding mechanism comprises a welding gun clamp 2, a TIG welding gun 9, a wire feeding pipe 10, a synchronous gas blowing pipe 7 and a fixing frame 12, the welding gun clamp 2 is installed on a drainage cover end cover 3, a welding gun installing hole is formed in the welding gun clamp 2, the TIG welding gun 9 is installed in the installing hole, the welding gun clamp 2 is used for positioning the TIG welding gun 9, a synchronous gas blowing pipe installing hole 34 and a wire feeding pipe installing hole 39 are formed in the drainage cover end cover 3, the fixing frame 12 is arranged in a welding chamber, the TIG welding gun 9 can penetrate through the welding gun installing hole to be installed on the fixing frame 12, the wire feeding pipe 10 can penetrate through the wire feeding pipe installing hole 39 to be installed on the fixing frame 12, the synchronous gas blowing pipe 7 can penetrate through the synchronous gas blowing pipe installing hole 34 to be installed on the fixing frame 12, and the wire feeding pipe 10 and the synchronous gas blowing pipe 7 are located on two sides of the TIG welding gun 9. The synchronous gas blowing pipe 7, the welding gun, the wire feeding pipe 10 and the fixing frame 12 are connected and fixed through bolts, and the wire feeding pipe 10 can meet the actual process requirements by rotating different wire feeding angles and welding wire materials.
The low-pressure air inlet module comprises a low-pressure drainage gas quick-connection plug 17, a low-pressure drainage gas inlet hole 32 is formed in the end cover 3 of the drainage cover, and the low-pressure drainage gas quick-connection plug 17 is installed at the low-pressure drainage gas inlet hole 32; the high-pressure air inlet module comprises a high-pressure drainage gas quick-connection plug 18 and a high-pressure gas spray pipe 11, a high-pressure drainage gas inlet hole 38 is formed in the end cover 3 of the drainage cover, the high-pressure drainage gas quick-connection plug 18 is installed at the high-pressure drainage gas inlet hole 38, and the high-pressure gas spray pipe 11 is communicated with the high-pressure drainage gas quick-connection plug 18. Drainage gas is uniformly introduced into the drainage cover main body through the low-pressure drainage gas quick-connection plug 17, after local drainage of a region to be welded is stable, high-pressure gas enters through the high-pressure drainage gas quick-connection plug 18 and is sprayed out of a nozzle through the high-pressure gas spray pipe 11, residual water drops in the region to be welded are effectively swept, the region to be welded is a dry environment, and the high-pressure gas spray pipe 11 can adjust the blowing direction according to different welding positions.
The low-pressure drainage gas quick-connection plug 17 and the high-pressure gas quick-connection plug are both 304 stainless steel threaded through connectors which are resistant to high and low temperatures and corrosion. The number of the low-pressure drainage gas inlet holes 32 is four, the low-pressure drainage gas inlet holes are distributed on the end cover 3 of the drainage cover in a rectangular shape by taking the TIG welding gun 9 as a center, the number of the high-pressure drainage gas inlet holes 38 is two, the high-pressure drainage gas inlet holes are symmetrically arranged on two sides of the TIG welding gun 9, drainage gas can be introduced into the drainage cover main body through the low-pressure drainage gas quick-welding plug 17, and after local drainage of a region to be welded is stable, high-pressure gas entering the high-pressure drainage gas quick-welding plug 18 can be sprayed into the drainage cover main body through the high-pressure gas spray pipe 11. The two high-pressure gas spray pipes 11 are correspondingly and symmetrically distributed, the front ends of the high-pressure gas spray pipes 11 are fan-shaped nozzles, residual water drops at the positions of welding areas can be effectively swept, and then the residual water drops are adsorbed by the profiling sealing sponge 5.
The temperature and humidity sensor 16 in the embodiment is a split type high temperature resistant temperature and humidity sensor 16, the waterproof grade is IP44, the precision is 0.1 ℃, 1.5 percent RH, the temperature range is-40-120 ℃, and a 304 stainless steel shell is adopted to monitor the drainage effect and the change condition of the temperature in the welding cavity in real time; the gas pressure sensor 15 is a diffused silicon automatic temperature compensation sensor, the waterproof grade is IP68, the precision is 0.2 percent FS, the problem of inaccurate measurement caused by temperature change can be effectively avoided by adopting a new generation temperature compensation technology, the gas pressure sensor adapts to a working environment of-40-125 ℃, the gas flow is adjusted by monitoring the gas pressure in real time, and the phenomenon that the sealing drainage performance is reduced due to too small gas flow and the molten pool is damaged due to too large gas flow is prevented. The end cover 3 of the drain cover is provided with a temperature and humidity sensor mounting hole 35 for mounting the temperature and humidity sensor 16 and a gas pressure sensor mounting hole 36 for mounting the gas pressure sensor 15.
Two binocular module mounting holes 37 and two lighting mechanism mounting holes 33 have been seted up on the drain cover end cover 3, and two lighting mechanism 8 and two binocular modules 13 use TIG welder 9 to be the rectangular distribution as the center, and wherein, two lighting mechanism 8 distribute according to the diagonal, and two binocular modules 13 distribute according to another diagonal. The binocular module 13 in this embodiment includes a camera 131, an attenuation sheet 132, an optical filter 133, a splash-proof lens 134 and a protective casing 135, the joint between the camera 131 and the protective casing 135 is coated with a leak-proof glue, the optical filter 133 can filter out most of arc light, the attenuation sheet 132 can effectively avoid exposure, the whole welding process is observed, and real-time tracking of a welding seam is realized. And this binocular module 13 chooses for use two cameras 131, and its preceding camera 131 is used for treating the alignment of welding position, and back camera 131 is used for observing welding seam shaping condition molten bath form, prevents arc breaking and is stained with the silk, realizes welding seam real-time tracking, improves the welding process controllability to reduce the work failure rate, improve work efficiency. Camera 131 is 1944P high definition endoscope camera 131, but the video recording, and built-in LED lamp light filling, waterproof grade is IP67 level, has the auto focus regulatory function, can see the condition in the drainage device fast clearly.
The connecting mechanism 1 in this embodiment includes a connecting portion 120 and an installation portion 110, the installation portion 110 forms a detachable fixed connection with the drainage cover main body through the connecting portion 120, the installation portion 110 is detachably and fixedly connected with the underwater motion platform, and the connecting portion 120 is fixedly connected with the installation portion 110. Specifically, the connection portion 120 is connected to the drain cover main body through a bolt, and the mounting portion 110 is connected to the underwater motion platform through a bolt.
In addition, the invention also provides an underwater TIG electric arc repairing and repairing method, the underwater repairing work is carried out by using the multifunctional underwater TIG electric arc repairing welding drainage device, and the specific implementation steps comprise:
s1: connecting and debugging the multifunctional underwater TIG electric arc repair welding drainage device, then installing the device on an underwater motion platform, opening the illuminating mechanism 8, the binocular module 13 and the gas pressure sensor 15, connecting the underwater motion platform with the device (the multifunctional underwater TIG electric arc repair welding drainage device) to finish water inlet action, and introducing low-pressure drainage gas into the drainage cover main body through the low-pressure gas inlet module;
s2: moving the underwater motion platform to a region to be welded, observing the drainage condition in the multifunctional underwater TIG electric arc repairing welding drainage device through the binocular module 13, starting the temperature and humidity sensor 16, observing and adjusting the distance between the position to be welded and a tungsten electrode through the binocular module 13 after the drainage condition is stable, and determining the welding starting point; at the moment, high-pressure gas is introduced into the drainage cover main body through the high-pressure gas inlet module, and the residual water drops and other impurities in the area to be welded are swept through the readings of the binocular module 13 and the temperature and humidity sensor 16 to form a relatively dry and clean welding space;
s3: after the readings of the temperature and humidity sensor 16 are stable, welding parameters are set according to welding requirements, after an arc starts, the front camera 131 observes the moving condition of a welding position, the rear camera 131 observes the shape of a molten pool, and in the welding process, according to different water depths and the temperature in the drainage cover main body, the readings of the temperature and humidity sensor 16 and the gas pressure sensor 15 are combined with the binocular module 13 to observe and timely adjust the position of a welding mechanism and the size of gas flow (low-pressure gas flow in a welding cavity), arc breakage or wire sticking is prevented, and the forming effect and the welding efficiency are improved;
s4: after the welding work is finished, the air flow is increased according to the monitoring indication of the gas pressure sensor 15, and the device finishes the water outlet action along with the underwater motion platform.
The multifunctional underwater TIG electric arc repairing welding drainage device provided by the invention is specially used for dynamic drainage sealing of corner positions of the bottom surface and the side wall, the side wall and the side wall of an underwater large and small steel structural member and underwater TIG electric arc welding maintenance, and has higher pertinence; the shape and the angle of the corner of the welding drainage device can meet the requirements of different corner positions to be repaired through the adjustment of the profiling structure and the profiling sealing sponge of the lower part 42 of the drainage cover, and the welding drainage device has higher practicability; the welding drainage device adjusts the gas flow by monitoring the gas pressure in the welding cavity in real time through the gas pressure sensor 15 and the temperature and humidity sensor 16 and the temperature change in the drainage cover main body in the welding process, prevents the sealing drainage performance from being reduced due to too small gas flow and prevents the molten pool from being damaged due to too large gas flow, thereby achieving the best forming effect, being suitable for different water depths and welding environment temperatures, and having better adaptability; the welding water device is provided with a binocular module 13, wherein a front camera 131 is used for aligning the position to be welded, and a rear camera 131 is used for observing the forming condition of a welding seam and the shape of a molten pool, so that arc breakage and wire sticking are prevented, real-time tracking of the welding seam is realized, and the controllability of the welding process is improved, thereby reducing the work failure rate and improving the work efficiency; the binocular module 13 in the welding drainage device can realize accurate detection of the distance between a tungsten electrode, a welding wire and a workpiece to be welded, realize determination of the welding starting position before welding, and effectively avoid workload and errors of manual alignment and debugging before welding, thereby improving the welding working efficiency and accuracy; the welding drainage device integrates various sensors, so that the manual re-inspection cost can be effectively saved, and the consumption of protective gas is reduced to the maximum extent, so that the welding cost is effectively reduced, and the welding quality is improved; the underwater electric arc additive manufacturing device has the advantages of reasonable structure, adaptability to corner positions, sufficient working chamber space and good watertight performance, is suitable for underwater electric arc additive manufacturing workpieces in shallow water environments and deep water environments, and completes underwater environment repair and electric arc welding of structural members.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The multifunctional underwater TIG electric arc repairing welding drainage device is characterized by comprising a drainage cover main body, a connecting mechanism, an air inlet mechanism, a welding mechanism, a monitoring mechanism and an illuminating mechanism, wherein the air inlet mechanism, the welding mechanism, the monitoring mechanism and the illuminating mechanism are arranged on the drainage cover main body;
the air inlet mechanism comprises a high-pressure air inlet module and a low-pressure air inlet module, the drainage gas can be introduced into the drainage cover main body through the low-pressure air inlet module, and the high-pressure gas is introduced into the drainage cover main body through the high-pressure air inlet module after the drainage of the area to be welded is stable so as to sweep water drops in the area to be welded;
the monitoring mechanism comprises a binocular module, a gas pressure sensor and a temperature and humidity sensor, the illuminating mechanism provides illumination for the welding cavity, the binocular module is used for observing the welding condition in the welding cavity, and the gas pressure sensor and the temperature and humidity sensor are arranged on the drainage cover main body and used for monitoring the gas pressure and temperature and humidity change in the welding cavity.
2. The multifunctional underwater TIG arc repair welding drainage device according to claim 1, wherein the drainage cover main body comprises a drainage cover body and a drainage cover end cover, the drainage cover end cover is detachably fixed to the drainage cover body, a sealing structure is arranged between the drainage cover end cover and the drainage cover body, the welding cavity is formed inside the drainage cover body, an end portion, far away from the drainage cover end cover, of the drainage cover body is of an open structure, the connecting mechanism is connected with the drainage cover body, and the air inlet mechanism, the welding mechanism, the monitoring mechanism and the lighting mechanism are all mounted on the drainage cover end cover.
3. The multifunctional underwater TIG arc repair welding drainage device according to claim 2, wherein the drainage cover body comprises a drainage cover middle part and a drainage cover lower part connected with the drainage cover middle part, the drainage cover middle part is provided with a connecting hole used for being connected with the connecting mechanism, a profiling sealing sponge is arranged on the inner wall of the drainage cover lower part, the profiling sealing sponge is installed on the inner wall of the drainage cover lower part through a profiling heat insulation steel ring in an extrusion mode, and the profiling sealing sponge and the profiling heat insulation steel ring are both arranged in the welding cavity.
4. The multifunctional underwater TIG arc repair welding drainage device of claim 2, wherein the welding mechanism comprises a welding gun clamp, a TIG welding gun, a wire feeding pipe, a synchronous blowing pipe and a fixing frame, the welding gun clamp is mounted on the end cover of the drainage cover, a welding gun mounting hole is formed in the welding gun clamp, a synchronous blowing pipe mounting hole and a wire feeding pipe mounting hole are formed in the end cover of the drainage cover, the fixing frame is arranged in the welding chamber, the TIG welding gun can penetrate through the welding gun mounting hole and be mounted on the fixing frame, the wire feeding pipe can penetrate through the wire feeding pipe mounting hole and be mounted on the fixing frame, the synchronous blowing pipe can penetrate through the synchronous blowing pipe mounting hole and be mounted on the fixing frame, and the wire feeding pipe and the synchronous blowing pipe are located on two sides of the TIG welding gun.
5. The multifunctional underwater TIG arc repair welding drainage device according to claim 4, wherein the low-pressure gas inlet module comprises a low-pressure drainage gas quick-connection plug, a low-pressure drainage gas inlet hole is formed in an end cover of the drainage cover, and the low-pressure drainage gas quick-connection plug is installed at the low-pressure drainage gas inlet hole;
the high-pressure air inlet module comprises a high-pressure drainage gas quick-connection plug and a high-pressure gas spray pipe, a high-pressure drainage gas inlet hole is formed in the end cover of the drainage cover, the high-pressure drainage gas quick-connection plug is installed at the high-pressure drainage gas inlet hole, and the high-pressure gas spray pipe is communicated with the high-pressure drainage gas quick-connection plug.
6. The multifunctional underwater TIG arc repair welding drainage device of claim 5, wherein the number of the low-pressure drainage gas inlet holes is four, the low-pressure drainage gas inlet holes are distributed on the end cover of the drainage cover in a rectangular shape with the TIG welding gun as a center, the number of the high-pressure drainage gas inlet holes is two, the high-pressure drainage gas inlet holes are symmetrically arranged on two sides of the TIG welding gun, drainage gas can be introduced into the drainage cover main body through the low-pressure drainage gas quick-welding plug, and after local drainage of a region to be welded is stable, high-pressure gas entering the high-pressure drainage gas quick-welding plug can be sprayed out to the region to be welded in the drainage cover main body through the high-pressure gas spray pipe.
7. The multifunctional underwater TIG electric arc repair welding drainage device according to claim 4, wherein two binocular module mounting holes and two illumination mechanism mounting holes are formed in the end cover of the drainage cover, the two illumination mechanisms and the two binocular modules are distributed in a rectangular shape with a TIG welding gun as a center, the two illumination mechanisms are distributed according to a diagonal line, and the two binocular modules are distributed according to the other diagonal line.
8. The multifunctional underwater TIG arc repair welding drainage device of claim 1, wherein the connecting mechanism comprises a connecting portion and an installation portion, the installation portion is connected with the drainage cover body in a detachable fixed mode through the connecting portion, a detachable fixed connection is formed between the installation portion and the underwater motion platform, and the connecting portion is connected with the installation portion in a fixed mode.
9. The multifunctional underwater TIG arc repair welding drainage device of claim 3, wherein the profiling sealing sponge is a compressible flame-retardant sponge material, and the profiling sealing sponge is connected with the inner wall of the lower portion of the drainage cover in a gluing mode.
10. An underwater TIG arc repair and repair method, which is characterized in that the multifunctional underwater TIG arc repair and welding drainage device according to any one of claims 1 to 7 is applied, and comprises the following steps:
s1: connecting and debugging the multifunctional underwater TIG electric arc repair welding drainage device, then installing the device on an underwater motion platform, turning on the illuminating mechanism, the binocular module and the gas pressure sensor to complete the water inlet action, and introducing drainage gas into the drainage cover main body through the low-pressure gas inlet module;
s2: moving the underwater motion platform to a region to be welded, observing the drainage condition in the multifunctional underwater TIG electric arc repairing welding drainage device through the binocular module, turning on the temperature and humidity sensor, and determining a welding starting point after the drainage condition is stable; at the moment, high-pressure gas is introduced into the drainage cover main body through the high-pressure gas inlet module, and the residual water drops and other impurities in the area to be welded are swept through the observation of the binocular module and the reading of the temperature and humidity sensor, so that a relatively dry and clean welding space is formed;
s3: after the readings of the temperature and humidity sensor are stable, setting welding parameters according to welding requirements, observing the moving condition of the welding position and the shape of a molten pool through the binocular module after arc starting, and timely adjusting the position of a welding mechanism and the air flow in a welding chamber according to different water depths and by combining the readings of the temperature and humidity sensor, the gas pressure sensor and the observation condition of the binocular module in the welding process;
s4: after the welding work is finished, the multifunctional underwater TIG electric arc repairing welding drainage device finishes the water outlet action along with the underwater moving platform.
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