CN207930137U - A kind of dedicated welding robot of airconium alloy plates - Google Patents
A kind of dedicated welding robot of airconium alloy plates Download PDFInfo
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- CN207930137U CN207930137U CN201820303572.0U CN201820303572U CN207930137U CN 207930137 U CN207930137 U CN 207930137U CN 201820303572 U CN201820303572 U CN 201820303572U CN 207930137 U CN207930137 U CN 207930137U
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Abstract
The utility model provides a kind of dedicated welding robot of airconium alloy plates, including welding gun, rack, linear module, servo motor, wire reel, welding wire, wire feeder, argon tanks, appendix, control cabinet and special fixture, the welding gun is under the driving of servo motor, it is slided with the slide unit level of linear module, the reciprocal welding in the U-shaped groove welding bead of two pieces of airconium alloy plates composition, and do not stopped in the middle part of each welding bead.The utility model provides welding robot, easy to operate, at low cost, is not limited by ambient enviroment；The degree of automation is higher, and welding efficiency is enhanced about more than once than traditional welding method.
Description
Technical field
The utility model is related to welding technology field more particularly to a kind of dedicated welding robots of airconium alloy plates.
Background technology
Zirconium is a kind of corrosion resistant metal, belongs to rare non-ferrous metal material, and zirconium and zircaloy have excellent corrosion resistance, it is right
Most of organic acids, inorganic acid, highly basic and some fused salts have extraordinary corrosion resistance；And with preferable heat resistance, processing
Property, there is application in industries such as oil, chemical industry, nuclear energy.But zirconium metal in welding to welding procedure and welding condition require compared with
Height, Seam and heat effected zone easily by element pollutions such as oxygen, hydrogen, nitrogen in air, generate hard and crisp compound, and generate brittleness
Acicular structure, so that the hardness of welding point, intensity is improved, but plasticity declines, corrosion resistance also declines to a great extent.
The welding of traditional airconium alloy plates uses manual argon arc welding bottoming, and manual electric arc welding capping, this method is due to by people
The influence of member, equipment, material, environment, weld seam be also easy to produce crackle, stomata, slag inclusion, incomplete fusion, it is lack of penetration the defects of, heat input
Excessive, heat affected area increases；And this welding method efficiency is low, and operator's labor intensity is big, and there is also ginsengs in product quality
The disadvantage that difference is uneven, stability is poor.
Worker can be made to be freed from the manual labor of big intensity using welding robot welding, manpower be saved, when welding
The welding parameter of every weld seam can all be set, reduce welding quality is influenced by human factor, is reduced to worker
The requirement of operating technology improves welding quality and quality stability, although welding robot welding field have it is above-mentioned excellent
Gesture, but currently without a kind of welding robot dedicated for airconium alloy plates welding.
The utility model provides a kind of dedicated welding robot of airconium alloy plates, easy to operate, at low cost, is not limited by environment
System, the degree of automation is higher, protects zirconium material to prevent from polluting in entire technical process, and welding point has higher intensity and same
When with excellent plasticity and toughness.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of dedicated welding robot of airconium alloy plates.
The utility model is realized with following technical solution：
A kind of dedicated welding robot of airconium alloy plates, the welding robot include welding gun, rack, linear module, watch
Take motor, wire reel, welding wire, wire feeder, argon tanks, appendix, control cabinet and special fixture.
Further, the servo motor is arranged in the end of the linear module, for driving the linear module, institute
Linear module is stated on the crossbeam of the rack；The argon tanks, control cabinet are arranged on the platform of the rack；It is described
Argon tanks are connected to by the appendix on the welding gun；The welding gun, wire reel, welding wire, wire feeder composition one are whole
Body is mounted on the slide unit of the linear module, realizes the horizontal rectilinear motion of welding gun；The special fixture is arranged described
The underface of welding gun positions airconium alloy plates to be welded for fastening.
Further, the special fixture includes chassis, support column, L-type fixture, fastening bolt；The chassis is located at
On ground, the support column setting is used to support airconium alloy plates in chassis upper surface, and the L-type fixture is arranged on the chassis
Both sides, and be provided with threaded hole, the fastening bolt and the corresponding threaded holes of the L-type fixture close, and compress the upper of airconium alloy plates
Surface, for fastening airconium alloy plates.
Further, the welding robot further includes a kind of combined type welding gun protective cover, and wherein welding gun protective cover is arranged
In the lower end of welding gun, the welding gun protective cover has the bending edges of opening upwards in the left and right sides；Two pieces of airconium alloy plates upper surfaces
Left protective cover and right protective cover is respectively set, the left protective cover and right protective cover are fastened by bolts in rear and front end special
It on fixture, prevents from moving or falling off in welding process, the left protective cover and right protective cover all have the bending edges that Open Side Down；
Left protective cover and right protective cover are overlapped with welding gun protective cover respectively.
Further, the process for using of the welding robot includes the following steps：
Step 1 needs the airconium alloy plates welded to be machined to two pieces, and is carried out to airconium alloy plates discharge surface clear
Reason, removes removing rust, grease and dust；
Two pieces of airconium alloy plates are fixed on special fixture by step 2, it is ensured that the relative position of two pieces of airconium alloy plates and therebetween
Gap forms U-shaped groove, while ensuring the position relationship of weld seam and the welding gun；
Step 3, the welding gun slide, in U under the driving of the servo motor with the slide unit level of the linear module
Reciprocal welding in type groove welding bead, and do not stopped in the middle part of each welding bead.
Further, the argon tanks use argon gas that quality purity is 99.99% range of flow are as protection gas
10L/min-15L/min。
Further, the welding wire uses flux-cored wire, and the gage of wire is 1.2mm-2.0mm, and welding current is
80A-140A, weldingvoltage 15-25V, 10~20cm/min of speed of welding are not preheated before weldering, each welding bead interlayer temperature control
At 100 DEG C or less.
Further, the width range for the U-shaped groove that two pieces of airconium alloy plates are constituted is 5-15mm, two pieces of airconium alloy plates
Gap size be 1-3mm；When welding, welding bead is successively superimposed, and bottom is backing run, and middle part is filler pass, and top is lid
Face welding bead needs between welding bead to carry out scarfing cinder processing, the nozzle inside diameter ranging from Ф 16-24mm of the welding gun.
Further, be provided with flux-cored wire in the welding gun, the flux-cored wire component include zircon sand, rutile,
Crome metal, niobium powder, silicomangan, molybdenum-iron, vanadium iron, nickel powder, tungsten powder, cobalt powder, almag, montmorillonite, potassium fluoroaluminate, oxidation
Antimony, palladium powder, kaolin, potassium feldspar, iron powder.
Further, flux-cored wire is provided in the welding gun, the flux-cored wire component includes zircon sand 20%, golden red
Stone 15.92%, crome metal 1.6%, niobium powder 3.5%, silicomangan 2.5%, molybdenum-iron 3.5%, vanadium iron 2.5%, nickel powder 2.92%,
Tungsten powder 1.52%, cobalt powder 4.59%, almag 5.93%, montmorillonite 2 .42%, potassium fluoroaluminate 0.71%, antimony oxide
1.55%, palladium powder 2.1%, kaolin 6.4%, potassium feldspar 0.05%, surplus iron powder.
The utility model has the beneficial effects that：
The dedicated welding robot of airconium alloy plates provided by the utility model, it is easy to operate, it is at low cost, not by ambient enviroment
Limitation.The degree of automation is higher, and welding efficiency is enhanced about more than once than traditional welding method.All high temperature in the welding process
High-purity argon gas shielded is given in region, protects zirconium material to prevent from polluting in entire technical process, and welding point has higher
Intensity and good plasticity and toughness.
Description of the drawings
Fig. 1 is a kind of dedicated welding robot schematic diagram of airconium alloy plates provided in this embodiment；
Fig. 2 is the side view of special fixture provided in this embodiment.
Wherein：1- racks, the linear modules of 2-, 3- servo motors, 4- wire reels, 5- welding wires, 6- wire feeders, 7- welding guns,
81- argon tanks, 82- appendixs, 9- control cabinets, 10- airconium alloy plates, 11- special fixtures, the chassis 111-, 112- support columns, 113-
L-type fixture, 114- fastening bolts, 12- welding gun protective covers, the left protective covers of 13-, the right protective covers of 14-, a- backing runs, b- fillings
Welding bead, c- final pass.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
Embodiment 1：
A kind of dedicated welding robot of airconium alloy plates, as shown in Figure 1 including welding gun 7, rack 1, linear module 2, servo
Motor 3, wire reel 4, welding wire 5, wire feeder 6, argon tanks 81, appendix 82, control cabinet 9, special fixture 11 and welding gun are protected
Shield 12；
The servo motor is arranged in the end of the linear module 2, described linear for driving the linear module 2
Module 2 is mounted on the crossbeam of the rack 1.The argon tanks 81, control cabinet 9 are arranged on the platform of the rack 1.It is described
Argon tanks 81 are connected to by the appendix 82 on the welding gun 7.The welding gun 7, wire reel 4, welding wire 5,6 structure of wire feeder
At an integral installation on the slide unit of the linear module 2, the horizontal rectilinear motion of welding gun 7 is realized.The special fixture
11 are arranged in the underface of the welding gun 7, and airconium alloy plates 10 to be welded are positioned for fastening.
As shown in Fig. 2, the special fixture 11 includes chassis 111, support column 112, L-type fixture 113, fastening bolt 114；
The chassis 111 is located on the ground, and the support column 112 is arranged in 111 upper surface of chassis, is used to support airconium alloy plates 10,
The L-type fixture 113 is arranged in the both sides on the chassis 111, and is provided with threaded hole, and the fastening bolt 114 is pressed from both sides with the L-type
The corresponding threaded holes of tool 113 close, and the upper surface of airconium alloy plates 10 are compressed, for fastening airconium alloy plates 10.
As shown in Fig. 2, in order to protect zirconium material to prevent from polluting in entire technical process, all high temperature in the welding process
Region is intended to give high-purity argon gas shielded, and the protective cover of traditional welding gun has the gap presence always, do not formed one it is relatively close
Space is closed, if operated in the environment of there is wind in outdoor, protective gas is easy to be blown to four winds, and can not ensure to effective to supply
It gives, it will directly affect welding quality.A kind of combined gas protective cover, wherein welding gun protective cover is arranged in the utility model thus
12 are arranged in the lower end of welding gun 7, and the welding gun protective cover 12 has the bending edges of opening upwards in the left and right sides；Two blocks of zircaloys
Left protective cover 13 and right protective cover 14 is respectively set in plate upper surface, and the left protective cover 13 and right protective cover 14 are logical in rear and front end
It crosses bolt to be fastened on special fixture 11, prevents from moving or falling off in welding process, the left protective cover 13 and right protective cover 14
All have the bending edges that Open Side Down；Left protective cover 13 and right protective cover 14 are overlapped with welding gun protective cover 12 respectively, with zircaloy
Plate collectively forms an opposite confined space, can completely protect to-be-welded region.
The process for using of the welding robot includes the following steps：
Step 1 needs the airconium alloy plates 10 welded to be machined, and is carried out to 10 discharge surface of airconium alloy plates to two pieces
Cleaning, removes removing rust, grease and dust；
Two pieces of airconium alloy plates 10 are fixed on special fixture 11 by step 2, it is ensured that the relative position of two pieces of airconium alloy plates 10
And its gap, U-shaped groove is formed, while ensuring the position relationship of weld seam and welding gun 7；
Left protective cover 13 and right protective cover 14 are fastened by bolts in rear and front end on special fixture 11 by step 3, left
Protective cover 13 and right protective cover 14 are overlapped with welding gun protective cover 12 respectively；
Step 4, welding gun 7 slide, on the U-shaped slope under the driving of servo motor 3 with the slide unit level of linear module 2
Reciprocal welding in mouth welding bead, and do not stopped in the middle part of each welding bead.
Further, the argon tanks 81 use argon gas that quality purity is 99.99% range of flow are as protection gas
10L/min-15L/min。
Further, the welding wire 5 uses flux-cored wire, and 5 a diameter of 1.2mm-2.0mm of the welding wire, welding current
For 80A-140A, weldingvoltage 15-25V, 10~20cm/min of speed of welding, do not preheated before weldering, each welding bead interlayer temperature control
System is at 100 DEG C or less.
Further, the width range for the U-shaped groove that two pieces of airconium alloy plates 10 are constituted is 5-15mm, two blocks of zircaloys
The gap size of plate 10 is 1-3mm；When welding, welding bead is successively superimposed, and bottom is backing run a, and middle part is filler pass b, top
Portion is final pass c, needs to carry out scarfing cinder processing between welding bead.
Further, the nozzle inside diameter range of the welding gun 7 is preferably Ф 16-24mm.
Embodiment 2：
A kind of dedicated welding robot of airconium alloy plates, specific work process are：
Step 21 needs the airconium alloy plates welded to be machined to two pieces, and is carried out to airconium alloy plates discharge surface clear
Reason, removes removing rust, grease and dust；
Two pieces of airconium alloy plates are fixed on special fixture by step 22, adjust two pieces of airconium alloy plates relative position and its
Gap, forms U-shaped groove, and the width of U-shaped groove is 10mm, and the gaps of two pieces of airconium alloy plates is 2mm, welding gun weld seam just on
Side, welding head is apart from striking point 5mm；
Left protective cover 13 and right protective cover 14 are fastened by bolts in rear and front end on special fixture 11 by step 23,
Left protective cover 13 and right protective cover 14 are overlapped with welding gun protective cover 12 respectively；
Before step 24, welding, argon tanks use the argon gas conduct that quality purity is 99.99% to protect gas, and range of flow is
The nozzle inside diameter of 10L/min, welding gun are Ф 20mm；Welding wire uses flux-cored wire, a diameter of 1.6mm；
When step 25, welding, welding gun slides, in the U under the driving of servo motor with the slide unit level of linear module
Reciprocal welding in type groove welding bead, welding bead are successively superimposed, and are not stopped in the middle part of each welding bead；When backing run, welding current
It is 20 ± 0.5V, speed of welding 10cm/min for 100 ± 5A, weldingvoltage；When filler pass, welding current be 110 ± 5A,
Weldingvoltage is 20 ± 0.5V, speed of welding 10cm/min；When final pass, welding current is 120 ± 5A, weldingvoltage is
20 ± 0.5V, speed of welding are 10cm m/min；Each welding bead interlayer temperature control is at 80 ± 5 DEG C；It needs to carry out scarfing cinder between welding bead
Processing.
Embodiment 3：
The utility model provides a kind of novel seamed type flux-cored wire, is made of intradermal medicine core of wrapping up in outside zircaloy, Suo Youyuan
Material medicinal powder is carried out with being sieved before part, and powder mesh number is about 80-90 mesh, to obtain the best medicinal powder proportioning of performance, setting comparison
Influence of the experimental test different material constituents content to flux-cored wire performance, different test group material component contents such as 1 institute of table
Show (content wt.%)：
The different test group material component content ratios of table 1
Flux-cored wire is produced according to aforementioned proportion using steel belt molding method respectively, obtains diameter 1.2mm's and diameter 1.6mm
8 kinds (No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8), each flux-cored wire include two kinds of specifications (diameter 1.2mm and diameters
1.6mm), production technology uses the prior art, it should be noted that ensures as far as possible when adding medicinal powder into machine high in quality
Really, by adding trace element into medicine core and rare earth element and be transitioned into weld metal, it is strong that refined crystalline strengthening, solid solution will be generated
The strengthening effects such as change and precipitation strength；The obdurability that weld metal is promoted while crystal grain thinning, improves zirconium metallic high temperature quilt
Brittle weakness under activation condition, but into medicine core, the optimal proportion of addition trace element and rare earth element needs numerous studies and examination
Testing could obtain.
Embodiment 4：
The welding robot that Application Example 1 provides is to above-mentioned 8 kinds of flux-cored wires to be detected：Test piece for welding is selected
600Mpa grades of airconium alloy plates, test piece for welding size are 50mmX200mmX20mm.Welding process is with reference to GB/T 17493-2008 marks
Standard, main welding parameters are：When backing run, welding current is 100 ± 5A, weldingvoltage is 20 ± 0.5V, speed of welding is
10cm/min；When filler pass, welding current is 110 ± 5A, weldingvoltage is 20 ± 0.5V, speed of welding 10cm/min；
When final pass, welding current is 120 ± 5A, weldingvoltage is 20 ± 0.5V, speed of welding is 10cm m/min；Each welding bead layer
Between temperature control at 80 ± 5 DEG C；It is needed between welding bead after carrying out scarfing cinder processing per pass welding completion, scarfing cinder, after completion scarfing cinder
Carry out down the welding of one of weld seam.
1, mechanical property test
Weld metal mechanical property test requires to execute according to GB/T 17493-2008, impact and tensile sample interception weldering
Metal part is stitched, weld metal vickers hardness test carries out on HVS-1000 type digital display microhardness testers, as a result such as 2 institute of table
Show：
2 mechanical property test result of table
| Test group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Yield strength MPa | 269 | 272 | 307 | 281 | 292 | 335 | 281 | 289 |
| Tensile strength Mpa | 531.2 | 556.0 | 617.1 | 552.5 | 569.7 | 618.9 | 573.4 | 542.3 |
2, microstructure observation
Stretch and impact test after the completion of, to sample carry out wire cutting produce metallographic and SEM samples, needed after sample hot insert through
Cross 240#、400#、800#、1200#、1600#Silicon carbide paper is polished step by step, until without apparent cut under low power metallographic microscope,
Back scattering imaging is carried out with scanning electron microscope.Fracture and stomata are with without, less, moderate, more, more classifications, for 1-8 medicine cores
Welding wire is given a mark, and is given a mark the results detailed in Table 3：
3 microstructure observation's result of table
| Test group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Crack | It is moderate | It is more | Nothing | It is less | Nothing | Nothing | It is moderate | It is more |
| Stomata | It is more | It is less | Nothing | It is more | It is more | Nothing | Nothing | It is moderate |
In conjunction with weld appearance and above-mentioned test result, No. 6 flux-cored wire best performances of 1.6mm diameters, in the welding process
Show uniform, continuous, the good weld appearance of molding；It splashes small, splashing particle is based on little particle；Tensile strength is
618.9Mpa, yield strength 335Mpa are significantly higher than similar product, and are broken when testing and are broken in base material, and slight crack is remote
From in weld heat-affected zone；On Extrude Face flaws are there are no in any direction of Seam and heat effected zone；Flux-cored wire exists
Volume of smoke and pernicious gas will not be generated in welding process；The welding wire is applicable to the all-position welding of zircaloy plank, has
Effect improves weld seam impact toughness, and in the welding process, the viscosity and coagulating property of slag are good, can all-position welding, it is especially suitable
Close vertical downward weldering.
Liquid penetrant testing accordingly is made to weld seam and does not find excessive defect with ray detection, meets CB3958/-2004/ respectively
II grade with the evaluation requirement of II grade of CB/T3558-2011B；Welding point tensile strength is more than 600MPa；Amplify after corrosion test
800 times of joint weldings for observing macrocorrosion sample and heat affected area surface do not find macroscopic crackle, incomplete fusion etc.
Defect, weld seam is specious, and Weld Performance is excellent, has higher intensity and good plasticity and toughness.
Flux core welding wire provided by the utility model can realize efficient mechanical automatic welding, be easy to control welded condition
And it can directly observe electric arc；Deposition rate is high, especially during all-position welding, remains to use high current operation, welding effect
Rate greatly improves, and thermal weld stress is small, welding deformation is small, stomata is small；Flux-cored wire containing zirconium provided by the utility model overcomes
Zirconium metal is only capable of the disadvantage welded with titanium, niobium, silver, vanadium, can directly be welded with a variety of alloys, metal；The utility model provides
Flux-cored wire ensure that heat-resisting, the corrosion resistance characteristic of zircaloy；Electric arc softness is almost without splashing when weld job；Welding bead appearance
It is beautiful.
Above disclosures are merely preferred embodiments of the utility model, with this utility model cannot be limited certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (4)
1. a kind of dedicated welding robot of airconium alloy plates, it is characterised in that：The welding robot includes welding gun, rack, line
Property module, servo motor, wire reel, welding wire, wire feeder, argon tanks, appendix, control cabinet and special fixture；It is described to watch
It takes motor to be arranged in the end of the linear module, for driving the linear module, the linear module to be mounted on the machine
On the crossbeam of frame；The argon tanks, control cabinet are arranged on the platform of the rack；The argon tanks are connected by the appendix
It is connected on the welding gun；The welding gun, wire reel, welding wire, wire feeder constitute an integral installation in the linear module
On slide unit, the horizontal rectilinear motion of welding gun is realized；The special fixture is arranged in the underface of the welding gun, for fastening
Position airconium alloy plates to be welded；The special fixture includes chassis, support column, L-type fixture, fastening bolt；The chassis is located
On the ground, the support column setting is used to support airconium alloy plates in chassis upper surface, and the L-type fixture is arranged at the bottom
The both sides of disk, and it is provided with threaded hole, the fastening bolt and the corresponding threaded holes of the L-type fixture close, and compress airconium alloy plates
Upper surface, for fastening airconium alloy plates.
2. welding robot according to claim 1, it is characterised in that：The welding robot further includes welding gun protection
Cover.
3. welding robot according to claim 2, it is characterised in that：
Wherein welding gun protective cover is arranged in the lower end of welding gun, and the welding gun protective cover has the bending of opening upwards in the left and right sides
Side；Left protective cover and right protective cover is respectively set in two pieces of airconium alloy plates upper surfaces, and the left protective cover and right protective cover are front and back
Both ends are fastened by bolts on special fixture, prevent from moving or falling off in welding process, the left protective cover and right protective cover
All have the bending edges that Open Side Down；Left protective cover and right protective cover are overlapped with welding gun protective cover respectively.
4. welding robot according to claim 3, it is characterised in that：It is provided with flux-cored wire in the welding gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820303572.0U CN207930137U (en) | 2018-03-06 | 2018-03-06 | A kind of dedicated welding robot of airconium alloy plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820303572.0U CN207930137U (en) | 2018-03-06 | 2018-03-06 | A kind of dedicated welding robot of airconium alloy plates |
Publications (1)
| Publication Number | Publication Date |
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| CN207930137U true CN207930137U (en) | 2018-10-02 |
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ID=63653750
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| CN201820303572.0U Expired - Fee Related CN207930137U (en) | 2018-03-06 | 2018-03-06 | A kind of dedicated welding robot of airconium alloy plates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213672A (en) * | 2018-03-06 | 2018-06-29 | 盐城工学院 | A kind of dedicated welding robot of airconium alloy plates |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213672A (en) * | 2018-03-06 | 2018-06-29 | 盐城工学院 | A kind of dedicated welding robot of airconium alloy plates |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20181002 Termination date: 20190306 |