CN113751837A - Single-sided and double-sided forming welding method based on Key-TIG technology and intelligent equipment - Google Patents
Single-sided and double-sided forming welding method based on Key-TIG technology and intelligent equipment Download PDFInfo
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- CN113751837A CN113751837A CN202010482753.6A CN202010482753A CN113751837A CN 113751837 A CN113751837 A CN 113751837A CN 202010482753 A CN202010482753 A CN 202010482753A CN 113751837 A CN113751837 A CN 113751837A
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- 238000003466 welding Methods 0.000 title claims abstract description 176
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 32
- 230000004927 fusion Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims abstract description 4
- 238000012797 qualification Methods 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims 1
- 239000011261 inert gas Substances 0.000 abstract description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010937 tungsten Substances 0.000 abstract description 3
- 229910052721 tungsten Inorganic materials 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
- 229910001338 liquidmetal Inorganic materials 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007778 shielded metal arc welding Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- 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
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides an intelligent equipment design based on a Key-TIG (tungsten inert gas) deep fusion welding system and a laser contour online detection system, aiming at the urgent need of the modern industrial production for a high-efficiency single-side welding double-side forming welding technology, based on the Key-TIG deep fusion keyhole welding technical principle, the equipment is composed of the Key-TIG deep fusion welding system and the laser contour online detection system, the technical advantages of single-side welding double-side forming welding, deep fusion welding and online detection of the Key-TIG deep fusion welding technology are comprehensively utilized, the technical bottlenecks of high assembly requirement of the Key-TIG welding and low qualification rate of single-side welding double-side forming welding are solved, high-efficiency and high-quality single-side welding double-side forming welding can be realized, the welding operation difficulty is reduced, and the welding automation is easy to realize.
Description
Technical Field
The invention relates to the field of welding technology and equipment, in particular to a single-sided and double-sided forming welding method based on Key-TIG technology and intelligent equipment.
Background
The welding technology is widely applied to the fields of aerospace, nuclear energy equipment, marine engineering, petroleum refining, heavy machinery and the like, and plays an important role in the development of national economy and national construction. However, due to the limitation of the welding forming principle, the welding is usually difficult to realize the single-side welding and double-side forming, so in order to meet the quality requirement, the welding joint of the key component is generally finished by adopting double sides; this results in an increase in the number of welding processes and, at the same time, increases the difficulty of the process design in order to ensure welding accessibility. At present, the common welding methods for single-sided and double-sided forming are manual arc welding (SMAW), Tungsten Inert Gas (TIG), plasma welding and laser welding; the requirements of manual arc welding (SMAW) and Tungsten Inert Gas (TIG) on the technical level of welding operators are high; the equipment investment cost of plasma welding and laser welding is high, and the welding assembly requirement is high, for example, the assembly clearance of laser welding is required to be less than 0.1 mm. Keyhole welding, Key-TIG for short, is a new welding method to realize the deep fusion welding by forming the lock hole with heavy current; the device can realize single-side welding and double-side forming of the base metal with the thickness of 3-16mm, has the advantages of high efficiency, high quality and low cost, and has good application prospect. The quality of Key-TIG welding is closely related to the assembly state of a component to be welded, particularly the assembly clearance; under the same welding current, when the assembly gap is too small, a lock hole cannot be formed, single-side welding double-sided forming cannot be realized, and when the assembly gap is too large, the single-side welding double-sided forming cannot be formed either by welding through easily. Therefore, it is necessary to develop an intelligent welding control method to ensure that the welding current matches the assembly gap for welding quality. The traditional welding quality method for ensuring Key-TIG single-side welding and double-side forming mainly comprises two methods: one is preorder control, namely, a blanking process and an assembly process before welding operation are strictly controlled, and the assembly clearance of a component to be welded is ensured to be stabilized within the range of 0-0.5mm, so that the method increases the overall production cost; the other method is manual process intervention, namely, in the welding process, an experienced welder observes the state of a molten pool and adjusts the welding current according to the state of the molten pool so as to realize the double-sided forming of single-sided welding.
Disclosure of Invention
The invention provides a Key-TIG single-side welding double-side forming intelligent equipment design aiming at the technical bottleneck of Key-TIG welding single-side welding double-side forming based on an adaptive control principle, which is used for solving the problems of high assembly requirement of Key-TIG welding, low qualification rate of single-side welding double-side forming and the like.
In order to achieve the purpose, the invention provides a single-sided and double-sided forming welding method and intelligent equipment based on Key-TIG technology, which comprise the following steps: Key-TIG deep penetration welding system, laser profile on-line measuring system.
The Key-TIG deep fusion welding system consists of a welding power supply, a welding gun, a water cooler and an argon bottle.
The welding power supply is used for providing power for the whole welding process.
The welding gun is a special welding gun for K-TIG welding, and the adjustable range is 0-1000A.
The water chiller is used for cooling the welding gun in time in the welding process.
The argon bottle is used for providing protective gas for the whole welding process, and the protective gas is introduced to the surface and the bottom of the welding line during the welding process to ensure that the welding line is not oxidized.
The laser profile on-line detection system is composed of a laser measurement sensor and a data processor.
The laser measuring sensor is used for measuring the information of the assembly gap before butt welding.
And the data processor is used for storing and analyzing the assembly information acquired by the laser measuring sensor and giving the welding current according to the welding expert database.
The Key-TIG deep fusion welding system is mainly used for realizing single-side welding and double-side forming, and the principle is as follows: under the action of the arc pressure, the surface of the welded workpiece begins to sag downwards to form small pits, and the molten liquid metal is continuously extruded to the periphery of the molten pool and the small pits also continuously sag downwards, so that small holes penetrating through the workpiece are formed in the molten pool of the liquid metal. The inside of the molten pool is dynamically balanced under the actions of arc pressure, liquid metal surface tension, liquid metal static pressure and the like, and at the moment, the small holes can keep a relatively stable geometric shape. When the electric arc moves forwards, the small hole moves forwards along with the electric arc, and the original molten pool loses balance and gradually solidifies to form a welding seam.
The laser contour online detection system is based on a laser triangular reflection type principle, and lasers with specified wavelengths are integrated into a static laser line through a special lens group and projected onto the surface of a measured object; the laser line forms diffuse reflection on the surface of the measured object, and the reflected light penetrates through the specific optical system and is projected onto the sensitive photosensitive medium to form secondary forming size acquisition information.
The operation process flow of the Key-TIG single-side welding double-side forming welding intelligent equipment is as follows: the laser contour online detection system is used for measuring assembly parameters before welding, formulating subsequent welding control parameters according to the assembly parameters and transmitting the parameters to the K-TIG deep fusion welding system; and the K-TIG deep fusion welding system completes the whole welding process of arc striking, welding and arc stopping according to the received welding parameters.
The Key-TIG single-side welding and double-side forming welding intelligent equipment is characterized in that the welding object is any metal: carbon steel, low alloy steel, stainless steel, zirconium and alloys thereof, nickel and alloys thereof, titanium and alloys thereof, and the like.
The Key-TIG single-side welding and double-side forming welding intelligent equipment is characterized in that a material supply mode is paraxial wire feeding, and welding can be carried out without adding a welding wire.
The Key-TIG single-side welding and double-side forming welding intelligent equipment is characterized in that the equipment can be used for welding pipe type revolving body components, and can also be used for plane butt welding after the equipment is improved.
Drawings
FIG. 1 is a schematic diagram of a single-sided and double-sided forming welding intelligent device based on a K-TIG technology.
Fig. 2 is a process flow diagram of a welding operation.
Detailed Description
The details of the present invention and its embodiments are further described below by taking tube welding as an example in conjunction with the accompanying drawings.
With reference to fig. 1, the intelligent Key-TIG single-side welding and double-side forming welding equipment consists of a Key-TIG deep penetration welding system, a laser profile on-line detection system and a numerical control machining workbench.
The Key-TIG deep fusion welding system is composed of a welding power supply 3, a welding gun 4, a water cooler 1 and an argon bottle 2.
The welding power supply 3 is used to provide a welding heat source.
The welding gun 4 is a welding gun special for Key-TIG welding, and the adjustable range is 0-1000A.
The water chiller 1 is used for providing cooling water to cool the welding gun 4 and the laser measuring sensor 5 in the welding process.
The argon bottle 2 is used for providing protective gas for the whole welding process, and simultaneously providing protective gas for the surface and the root of the welding line to ensure that the welding line is not oxidized.
The laser profile on-line detection system consists of a laser measuring sensor 5 and a data processor 6.
And the laser measuring sensor 5 is used for measuring the information of the assembly gap before butt welding, and the measuring precision is 0.1 mm.
And the data processor 6 is used for storing and analyzing the assembly information acquired by the laser measuring sensor 5 and giving welding current according to the welding expert database.
The numerical control machining workbench comprises a base bed body 7, a fixed claw disc 8, a bracket 9 and a traveling machine head 10.
The basic bed body 7 is a carrier of a fixed claw disc 8, a bracket 9 and a walking machine head 10.
The fixed claw disk 8 is arranged on the base bed body 7, is a carrier of a workpiece 11 to be welded, has the rotating speed of 0-60R/min and the positioning precision of +/-0.1 mm, has the holding diameter of 60-500mm, and is matched with the bracket 12 to realize the maximum machining length of 4m and the maximum machining weight of 2 tons.
The walking machine head 10 is arranged on the base bed body 7 and is a carrier of the welding gun 4 and the laser measuring sensor 5, the walking speed is 0-500mm/min, the precision is +/-0.1 mm/1m, and the linear walking distance is 4.5 m.
The bracket 9 is arranged on the base bed body 7 and used for auxiliary supporting, mounting and positioning of the workpiece 11.
With reference to the flow chart of the welding operation in fig. 2, the process flow is briefly described as follows:
step 1, blanking a workpiece;
step 3, starting a welding online monitoring system;
step 4, collecting assembly data (gaps, staggered edges and groove angles) before welding;
step 5, formulating welding process parameters (welding current and welding speed) and feeding back the parameters to a Key-TIG deep fusion welding system;
and 8, closing the system power supply after welding is finished.
Claims (10)
1. The invention provides a Key-TIG single-side welding double-side forming welding intelligent equipment design aiming at the technical bottleneck of Key-TIG welding single-side welding double-side forming based on an adaptive control principle, and aims to solve the problems of high assembly requirement of Key-TIG welding, low qualification rate of single-side welding double-side forming and the like; the designed equipment can realize high-efficiency and high-quality single-side welding double-side forming and is easy to realize welding automation.
2. The single-sided and double-sided forming welding method and the intelligent equipment based on Key-TIG technology of claim 1, which consists of a Key-TIG deep fusion welding system and a laser profile on-line detection system.
3. The Key-TIG deep fusion welding system of claim 2, consisting of a welding power supply, a welding gun, a water cooler, and an argon bottle.
4. The laser profile on-line detection system as claimed in claim 2, which comprises a laser measurement sensor and a data processor.
5. The laser measurement sensor of claim 8, configured to enable measurement of pre-weld fit-up clearance information.
6. The data processor of claim 8, wherein the assembly information collected by the pair of laser measurement sensors is stored, analyzed, and the welding current is given according to a welding expert database.
7. The operation process flow of the Key-TIG single-side welding double-side forming welding intelligent equipment of claim 2 is as follows: the laser contour online detection system is used for measuring assembly parameters before welding, processing the assembly parameters, formulating subsequent welding control parameters according to the assembly parameters and transmitting the parameters to the K-TIG deep fusion welding system; and the K-TIG deep fusion welding system completes the whole welding process of arc striking, welding and arc stopping according to the received welding parameters.
8. The Key-TIG single-side welding and double-side forming welding intelligent equipment according to claim 2, wherein the welding object is any metal: carbon steel, low alloy steel, stainless steel, zirconium and alloys thereof, nickel and alloys thereof, titanium and alloys thereof, and the like.
9. The Key-TIG single-sided welding and double-sided forming intelligent welding equipment according to claim 2, characterized in that the material supply mode is paraxial wire feeding, and welding can be carried out without adding welding wires.
10. The Key-TIG single-side welding and double-side forming intelligent welding equipment according to claim 2, wherein the equipment can be used for welding of pipe type revolving body components, and can also be used for plane butt welding after the equipment is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482753.6A CN113751837A (en) | 2020-06-01 | 2020-06-01 | Single-sided and double-sided forming welding method based on Key-TIG technology and intelligent equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482753.6A CN113751837A (en) | 2020-06-01 | 2020-06-01 | Single-sided and double-sided forming welding method based on Key-TIG technology and intelligent equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113751837A true CN113751837A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010482753.6A Pending CN113751837A (en) | 2020-06-01 | 2020-06-01 | Single-sided and double-sided forming welding method based on Key-TIG technology and intelligent equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713938A (en) * | 2022-03-29 | 2022-07-08 | 奥特(南京)智能制造有限公司 | Automatic priming process method for process pipeline robot |
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2020
- 2020-06-01 CN CN202010482753.6A patent/CN113751837A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713938A (en) * | 2022-03-29 | 2022-07-08 | 奥特(南京)智能制造有限公司 | Automatic priming process method for process pipeline robot |
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Application publication date: 20211207 |