CN1212918A - Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space - Google Patents
Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space Download PDFInfo
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- CN1212918A CN1212918A CN 97109255 CN97109255A CN1212918A CN 1212918 A CN1212918 A CN 1212918A CN 97109255 CN97109255 CN 97109255 CN 97109255 A CN97109255 A CN 97109255A CN 1212918 A CN1212918 A CN 1212918A
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- welding
- electric arc
- narrow gap
- wire electric
- narrow space
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- 238000003466 welding Methods 0.000 title claims abstract description 74
- 230000006835 compression Effects 0.000 title claims description 17
- 238000007906 compression Methods 0.000 title claims description 17
- 238000010891 electric arc Methods 0.000 title claims description 15
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims description 6
- 235000005822 corn Nutrition 0.000 title claims description 6
- 240000008042 Zea mays Species 0.000 title description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 241000209149 Zea Species 0.000 claims 2
- 230000004927 fusion Effects 0.000 abstract description 5
- 239000000498 cooling water Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 235000015111 chews Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Arc Welding In General (AREA)
Abstract
An automatic welding apparatus with integraed narrow-gap automatic welding torch and non-contact tracking system features that its narrow-gap welding torch is composed of flat torch body with insulating coating sprayed on its external surface, electrically conducting mouth in the torch body, circulated cooling water channels at both sides of conducting mouth, and conic gas nozzle near the cooling water channel. Its advantages are uniform fusion of two side wall without swinging arc, simple apparatus, low cost and high welding quality.
Description
The invention belongs to welding technology field, particularly a kind of narrow gap auto welding connects equipment.
It is a kind of high efficiency in the thick plates field, high-quality, welding technique cheaply that narrow gap welding connects.The narrow gap auto welding connection technology that present industrial circle is applied mainly contains three kinds, i.e. the narrow gap of submerged-arc welding technology, argon tungsten-arc welding (TIG weldering) narrow gap technology and the narrow gap of gas metal-arc welding technology.
It is simple and stable that the narrow gap of submerged-arc welding technology (referring to " narrow gap welding connects " P192～P242 page or leaf) has a productivity ratio height, technology, but it is huge to exist auxiliary equipment, welding locus bad adaptability, limitation such as weld heat input is difficult for reducing to reduced levels, and groove gap is big.
Argon tungsten-arc welding (TIG weldering) narrow gap technology (referring to " narrow gap technology " P165～P191 page or leaf) metallurgical quality excellence, it is more easy to control to be shaped, and welding process is stable, but welding productivity is low, the cost height, and the equipment complexity, the adaptability of steel grade is relatively poor.
The narrow gap of gas metal-arc welding technology; common form has: non-ferrous metal melting utmost point inert gas-shielded arc welding narrow gap technology and narrow technology of molten ferrous metal utmost point gas shielded arc welding (referring to " narrow gap technology " P23～P164 page or leaf); though they can overcome some deficiency of submerged-arc welding and the narrow gap of argon tungsten-arc welding technology; but still the evenly reliable fusion problem that exists to solving the two side must adopt complicated swinging technique; solid core welding wire is difficult to adapt to complicated and diversified engineering steel needs; the narrow gap of the molten ferrous metal utmost point gas shielded arc welding technology that the industrial production application percentage is bigger (as the MAG weldering) technology is complicated (polynary protective gas mixing), the high deficiency of welding production cost.
Purpose of the present invention is exactly a kind of automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space of developing at above-mentioned situation.
The present invention is by the non-homogeneous compression narrow gap welding torque 4 of integral type, flux-cored wire wire feeder 13, and root ceramics forming pad 3 welds dolly 5 automatically, automatically weld track 7, permanent-magnet steel 8, walking gear 9, two dimension is from motion tracking executing agency 10, optical pickocff 11, Arc Welding Power 12, CO
2Gas cylinder 14, computer image treatment and tracking control system 15 are formed.Wherein integral type narrow gap welding torque 4 is coated with the platypelloid type welding torch body 19 of insulating coating 20 by outer surface, the conduction that the centre position is provided with in platypelloid type welding torch body chews 17, chew the recirculated water cooling passage 18 that both sides are provided with in conduction, constitute at the recirculated water cooling passage 18 other shrinkage type gas nozzles 16 that are provided with.
In order to ensure the Accurate Position Control of narrow gap welding torque in groove, can adopt contactless laser automatic tracking system, promptly constituted from motion tracking executing agency 10, Computer Image Processing and tracking control system 15 by laser sensor 11, two dimension.
During work, the welding wire electric arc of setting up between flux-cored wire 6 and the workpiece 1 is the thermal source of heating welding wire and workpiece, and this electric arc is by the CO of 16 ejections of the shrinkage type gas nozzle in the narrow gap welding torque 4
2Gas carries out from two sides of fusion length direction than the heat-flash compression, and groove width direction side is subjected to more weak hot compression.The result of this non-homogeneous hot compression makes the electric arc shape of cross section become ellipse, and long axis direction is parallel with groove gap width (G).Adopt the welding wire electric arc of this non-homogeneous compression to carry out downhand welding automatically in the dark narrow groove of big slab, during automatic vertical position, any electric arc swinging technique when not needing the welding of conventional narrow gap can very solve the even fusion problem of two side reliably.Cooperate the step-less adjustment of speed of welding and the correct selection of welding energy parameter, can obtain the remarkable concave of appearance of weld [in the accompanying drawing 5: e=(0.8-1.5) H], smooth surface, (ψ=W/H) greatly and the good quality solder joints of very easily adjusting for aspect ratio of weld.
Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space manufactured according to the present invention has following characteristics:
Dolly 5 and welding torch 4 are extremely succinct and reliability is higher; Because of adopting flux-cored wire can very adapt to all engineering steels neatly; The multilayer welding of free forming can very be carried out deposited control neatly, and then control the primary structure and the performance of joint easily and effectively; Low and weld heat input that be easy to adjust can satisfy the special weldability needs of thermo-responsive steel, high-strength steel; The groove gap narrower than conventional art will further reduce the welding production cost, improve welding productivity.
Best implementation of the present invention is to adopt thin footpath copper facing seamless flux-cored wire; The narrow gap welding torque Accurate Position Control adopts contactless laser automatic tracking system; Select the wire feeder of four-wheel drive for use, Arc Welding Power falls the low direct current flat characteristic power supply of rate and is advisable with slow.
Accompanying drawing 1 welds the hardware system schematic diagram automatically for non-homogeneous compression welding wire electric arc narrow space.1 is workpiece and groove among the figure, and 2 is the crystallization weld seam along the weld seam central lateral plane, and 3 is the ceramics forming liner, 4 is integral type narrow gap welding square, and 5 is to weld dolly automatically, and 6 are the section of stretching out flux-cored wire, 7 is aluminium alloy half flexible rail, 8 is permanent-magnet steel, and 9 is the driven wheel that is meshed with the track upper rack, and 10 is that two dimension is from motion tracking executing agency (electronic crosshead shoe), 11 is laser sensor, 12 is Arc Welding Power, and 13 is the four-wheel wire feeder, and 14 is CO
2Gas cylinder, 15 is computer image treatment and tracking control system.
Accompanying drawing 2 welds principle schematic automatically for the vertical upright downward non-homogeneous compression welding wire electric arc narrow space along weld seam center longitudinal profile among the embodiment.α represents welding wire positive pitch, V among the figure
wThe expression speed of welding.
Accompanying drawing 4 is non-homogeneous compression arc schematic diagram.21 is the electric arc shape of cross section after the non-homogeneous compression, and G is groove gap (G=8～12mm).
Accompanying drawing 5 is a seam cross-section weld bead shape schematic diagram.W represents weld width among the figure, and H represents the per pass throat depth, and e represents weld metal minimum point poor in the middle part of peak and welding bead are soaked in two side fusion, and when W=7～10mm, e is generally 3～6mm among the embodiment.
Claims (2)
1. automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space that has integral type narrow gap welding torque and automatic tracking system is characterized in that:
Described integral type narrow gap welding square is a non-homogeneous compression narrow gap welding square [4], it is coated with the platypelloid type welding torch body [19] of insulating coating [20] by outer surface, the conduction that the centre position is provided with in platypelloid type welding torch body [19] is chewed [17], chew the recirculated water cooling passage [18] that [17] both sides are provided with in conduction, constitute at the other shrinkage type gas nozzle [16] that is provided with of recirculated water cooling passage [18].
2. automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space according to claim 1 is characterized in that:
Described tracking system adopts by laser sensor [11], and two dimension is from motion tracking executing agency [10], and Computer Image Processing and tracking control system [16] constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97109255 CN1212918A (en) | 1997-09-26 | 1997-09-26 | Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97109255 CN1212918A (en) | 1997-09-26 | 1997-09-26 | Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1212918A true CN1212918A (en) | 1999-04-07 |
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ID=5171063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97109255 Pending CN1212918A (en) | 1997-09-26 | 1997-09-26 | Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308111C (en) * | 2004-10-21 | 2007-04-04 | 武汉大学 | Automatic welding-torch for ultra narrow gap and consumable electrode under gas coverage, and preparation method |
| CN100463755C (en) * | 2003-05-30 | 2009-02-25 | 株式会社安川电机 | Welding torches and welding robots |
| CN101687282B (en) * | 2007-07-04 | 2013-04-17 | 丰田自动车株式会社 | Welding equipment and welding method |
-
1997
- 1997-09-26 CN CN 97109255 patent/CN1212918A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463755C (en) * | 2003-05-30 | 2009-02-25 | 株式会社安川电机 | Welding torches and welding robots |
| CN1308111C (en) * | 2004-10-21 | 2007-04-04 | 武汉大学 | Automatic welding-torch for ultra narrow gap and consumable electrode under gas coverage, and preparation method |
| CN101687282B (en) * | 2007-07-04 | 2013-04-17 | 丰田自动车株式会社 | Welding equipment and welding method |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |