CN205380346U - Take arc welding of dry -type under water welding set of nozzle - Google Patents
Take arc welding of dry -type under water welding set of nozzle Download PDFInfo
- Publication number
- CN205380346U CN205380346U CN201620037641.9U CN201620037641U CN205380346U CN 205380346 U CN205380346 U CN 205380346U CN 201620037641 U CN201620037641 U CN 201620037641U CN 205380346 U CN205380346 U CN 205380346U
- Authority
- CN
- China
- Prior art keywords
- welding
- barrel
- gun
- nozzle
- gun barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Resistance Welding (AREA)
Abstract
The utility model discloses a take arc welding of dry -type under water welding set of nozzle, welding set includes welder, air supply equipment and the control unit: welder includes barrel and electrode holder, is equipped with the air inlet on the barrel, is equipped with the self -holding mechanism of assembly welding rod in the barrel, and axial direction is last, and one side lumen of barrel passes through the air inlet is connected with air supply equipment's the end of giving vent to anger, and the port department in this side pipe chamber is equipped with the gas nozzle to but be equipped with the end cover of external -open upset, the end cover is closed through elastic mechanism automatic control, be equipped with advancing mechanism in the barrel opposite side lumen, self -holding mechanism installs on advancing mechanism, is driven by advancing mechanism and moves on barrel axial direction. The utility model relates to a novelty, convenient operation, just easy realization adopt protective gas from the interior spun mode of welder nozzle, form a local space dry -type environment fast, the drying of welding rod in the time of just can guaranteeing underwater welding.
Description
Technical field
This utility model belongs to field of machining, relates to underwater welding technology, is specially a kind of underwater dry-type electric arc welder with nozzle.
Background technology
At present, Underwater Welding is just becoming a more and more popular and practical solder technology, it is particularly suited for boats and ships, ocean engineering much needs the occasion that underwater portion is keeped in repair, but affected by working environment, Underwater Welding there is also the difficult point of a lot of enforcement technology, easily intake including weld seam and welding material and cause that weld seam hydrogen content increases, the potential safety hazard that the electric conductivity of water is brought, and during welding, workman does not see the position of electric arc and weld seam in water, the operant skill of workman is required more high, wherein, in water, during welding, the waterproof problem of weld seam and welding material is the most prominent.In traditional water, dry type solder technology great majority are the confined spaces utilizing drainage arrangement to form a dry type, and the method then carrying out again welding carries out.Forefathers are such as had to add a welding enclosure on the helmet, air draining is utilized to form dry type space in welding enclosure, although this method can accomplish weld in water and weld the same effect on the bank to greatest extent, but its cost is huge, device is complicated, and take time and effort, often it is not suitable in water to Welding Structure keeping in repair the occasion of especially emergency maintenance.And in existing welding method, the mechanism such as wire feed flexible pipe that welding wire is omitted from growing very much and very big wire reel that adopts SMAW in water to compare, therefore in water, SMAW is again a kind of underwater welding method of current most prospect.So developing a set of waterproof problem that can either solve underwater electrode, the requirement to operative's technical ability when welding in water can be reduced again, can guarantee that again that the weldering device of welder's safety just seems particularly urgent and important simultaneously.
Utility model content
Technical purpose of the present utility model be to provide a kind of improve prior art not enough the underwater dry-type arc welding torch device with nozzle, utilize gas draining, manufacture the dry type environment being suitable for welding.
For realizing above-mentioned technical purpose, technical scheme disclosed in this utility model is:
Underwater dry-type electric arc welder with nozzle, it is characterised in that include welding gun, air feed equipment and control unit:
Described welding gun includes gun barrel and electrode holder, gun barrel is provided with air inlet, the automatic clamping mechanism of assembling welding rod it is provided with in gun barrel, on axial direction, the side tube chamber of gun barrel is connected with the outlet side of air feed equipment by described air inlet, and the port in this side pipe chamber is provided with gas nozzle, and is provided with the end cap of closed port, described end cap can overturn by external-open, and automatically controls closedown by elastic mechanism；Being provided with propulsive mechanism in gun barrel opposite side tube chamber, described automatic clamping mechanism is arranged on described propulsive mechanism, propulsive mechanism drive and move on gun barrel axial direction, and described air feed equipment, automatic clamping mechanism, propulsive mechanism are connected with described control unit respectively.
On the basis of such scheme, improve further or preferred technical scheme also include:
Described welder is additionally provided with welding rod thermophore, described welding rod thermophore is provided with the barrel chamber can being enclosed within welding gun gun barrel, barrel chamber port is provided with the barrel chamber end cap of closed port, described barrel chamber end cap can in open upset, and automatically control closedown by elastic mechanism, welding rod location and installation is at the location mid-shaft of barrel chamber, and a thermophore into the barrel chamber deposits an electrode.
Described welding rod thermophore is provided with sealing ring outside end cap, and the external diameter of the internal diameter of described sealing ring and the welding gun gun barrel section that can be inserted into barrel chamber agrees with, and makes gun barrel just be inserted in sealing ring, it is prevented that to put in thermophore and intake.
Consider in underwater environment, simple dependence vision judges that the usage degree of welding rod is relatively difficult, propulsive mechanism or automatic clamping mechanism easily burn out, can on described propulsive mechanism or automatic clamping mechanism mounting temperature sensor, described temperature sensor is connected with described control unit.The principle that when utilizing welding rod to be soldered, electric arc can steeply rise from temperature close to temperature sensor, by electric arc automatic distinguishing, reduces operation easier when welding in water further.
The middle part of welding gun gun barrel is provided with the guide rail of the constraint propulsive mechanism direction of motion, and guide rail is electrically connected with the source of welding current by cable, and as the ingredient of electrode, welding rod is electrically connected with guide rail by automatic clamping mechanism.
Described propulsive mechanism preferably employs double-acting cylinder or hydraulic cylinder, and the chuck of automatic clamping mechanism is arranged on the piston rod stretching out cylinder body；Welding circuit is provided with the current sensor of detection welding current, described cylinder or hydraulic cylinder control keying for the air inlet of cavity or the inlet passing ratio electromagnetic valve advanced to gun barrel port side by piston rod, described current sensor, proportional solenoid are connected with control unit respectively, control unit control the aperture of proportional solenoid according to the output signal of current sensor.
Beneficial effect:
This utility model welder is novel in design, easy to operate, use safety and be easily achieved; adopt the mode that protective gas sprays in torch neck; quickly form a local space dry type environment; and ensure that the dry of welding rod during Underwater Welding; this utility model implementation cost is low; and easily operated, be suitable for promoting the use of, it may be achieved high-quality, efficient, save time, labour-saving Arc Welding Process under water.
Accompanying drawing explanation
Fig. 1 is the structural representation of welding gun；
Fig. 2 is the structural representation of thermophore；
Fig. 3 is the fundamental diagram of control unit；
Fig. 4 is the automatic blow-out theory diagram of welding rod；
Fig. 5 is the schematic flow sheet of welding process；
1:1-electrode holder in figure, 2-cable, 3-welds button, 4-pause button, 5-send bar button, and 6-supplies gas button, 7-air inlet, 8-air inlet, 9-piston rod, 10-torch neck, 11-piston rod guide rail, 12-waterproof insulation overcoat, 13-end cap, 14-elastic mechanism, 15-electromagnetic chuck, 16-temperature sensor, 17-welding rod, 18-air inlet.
In Fig. 2: the waterproof thermal-insulated overcoat of 19-, 20-elastic mechanism, 21-sealing ring, 22-end cap, 23-welding rod, 24-fixed support.
Detailed description of the invention
In order to illustrate the technical solution of the utility model and technical purpose, below in conjunction with drawings and the specific embodiments, this utility model is described further.
A kind of underwater dry-type electric arc welder with nozzle, including welding gun, air feed equipment, welding rod thermophore and circuit control system etc..
Described circuit control system is partly made up of control unit and the electromagnetic valve (including proportional solenoid) being connected with control unit respectively, temperature sensor, current sensor, the displacement transducer etc. based on PLC.
As it is shown in figure 1, described welding gun includes gun barrel and is provided with welding button 3, pause button 4, send the electrode holder 1 of bar button 5, receipt button, the control knob such as button 6, clamp bar button of supplying gas, welding gun is externally provided with waterproof insulation overcoat 12.
Described gun barrel is provided with air inlet 18, is provided with the automatic clamping mechanism of assembling welding rod 17 in gun barrel, adopts electromagnetic clamping mechanism in the present embodiment.On gun barrel axial direction, gun barrel side tube chamber is connected with the outlet side of air feed equipment by described air inlet 18, the port in this side pipe chamber is provided with gas nozzle 10, and it is provided with the end cap 13 of closed port, described end cap 13 is arranged on gun barrel by hinge, can overturn by external-open, and by elastic mechanism 14(such as torsion spring) automatically control closedown；Gun barrel opposite side tube chamber is provided with the propulsive mechanism that double-acting miniature cylinder is constituted, described electromagnetic clamping mechanism is arranged on the end that double-acting miniature cylinder stretches out the piston rod 9 of cylinder body, under control unit control, driven by cylinder and move on gun barrel axial direction, complete the propelling movement to welding rod 17 and pumpback action.
Described temperature sensor is arranged on the chuck of electromagnetic clamping mechanism, the middle part of gun barrel is provided with the guide rail 11 of constraint double-acting miniature cylinder piston rod 9 direction of motion, described guide rail 11 is electrically connected with the source of welding current by cable 2, ingredient as electrode, welding rod 17 is electrically connected with guide rail 11 by electromagnetic clamping mechanism, forms welding circuit.
Described welding circuit is provided with the current sensor of detection welding current, the air inlet 7 passing ratio electromagnetic valve 1A4 of the double-acting miniature cylinder cavity for being advanced to gun barrel port side by piston rod 9 controls to open and close, and the air inlet 8 of opposite side cavity is controlled by electromagnetic valve 1A2.
As shown in Figure 2, described welding rod thermophore is provided with waterproof thermal-insulated overcoat 19 and deposits the barrel chamber of welding rod 23, barrel chamber port is provided with the barrel chamber end cap 22 of closed port, described barrel chamber end cap 22 is arranged on welding rod thermophore by hinge, can in open upset, and by elastic mechanism 20(such as torsion spring) automatically control closedown, welding rod 23 is by fixed support 24 location and installation location mid-shaft in barrel chamber, conveniently it is directed at the electromagnetic clamping mechanism in welding gun, and a thermophore into the barrel chamber only deposits an electrode.Welding rod thermophore is provided with sealing ring 21 outside end cap, and the external diameter of the internal diameter of described sealing ring 21 and the welding gun gun barrel section that can be inserted into barrel chamber agrees with.
During welding, pressing the welding button 3 on electrode holder 1, the coil of proportional solenoid 1A4 obtains electric, and spool position moves, and compression air enters from double-acting miniature cylinder air inlet 7, and cylinder piston rod 9 moves downward along guide rail 11 guide direction, and welding rod 17 is down sent into.After welding rod 17 and absorption surface, control unit output signal closes proportional solenoid 1A4 immediately, opens the electromagnetic valve 1A2 controlling the air inlet 8 that piston rod moves upward, and after welding rod 17 pumpback campaign 0.5s, ignite electric arc.Exported signal by control unit after 0.5s, close air inlet 8, and open proportional solenoid 1A4, continue welding rod 17 to be down sent into weld.The chuck upper end of electromagnetism clamping mechanism is equipped with temperature sensor, and when welding rod 17 is soon soldered, temperature sensor is owing to now from close to arc position, temperature steeply rises.Control unit output signal, solid-state relay SSR input loses signal, and outfan disconnects, and welding arc extinguishes, with burnout-proof piston rod 9 and chuck.During welding, the instant piston 9 of welding rod 17 feed rate down move down speed, the aperture moving down speed passing ratio electromagnetic valve 1A4 of piston rod 9 is adjusted, and before striking, welding rod 17 remains maximum toward proportional solenoid 1A4 aperture when moving down；After striking, by the current sensor within the source of welding current, welding current is sent to PLC control unit A/D module EM235, PLC digital module output one amplified circuit of pwm signal after give proportional solenoid one 4 ~ 20mA proportional to welding current of 1A4 coil analogue signal.The aperture of proportional solenoid 1A4 and the proportional relation of this analog quantity.In advance determine welding current by engineer testing and proportionate relationship that piston rod moves down between speed, equal to ensure electrode feeding speed and burn-off rate.
What the present embodiment relied on double-acting miniature cylinder piston rod 9 moves up and down the automatic feed realizing welding rod 1 and pumpback function, and do so mainly avoids that welding in water is manual send bar, reduces operation easier.The size design of gas nozzle 10 should be of moderate size, if being made the operation inconvenience of too big welding gun, too little then protection domain is too small, and after electric arc, weld seam easily soaks.The clamping of welding rod realizes by electromagnetic clamping mechanism, and the waterproof in welding process ensures mainly by spraying protective gas at a high speed from gas nozzle 10.
When adopting this utility model underwater dry-type electric arc welder with nozzle to weld, can implement as follows:
Step 1: before lower water, first opens electric welding machine and PLC control cabinet on the coast and sets welding current.
Step 2: after lower water, first send protection gas and installs the first electrode.
Pressing the button 6 of supplying gas on electrode holder 1, PLC control unit output signal controls the electromagnetic valve 1A1 coil of protection gas and obtains electric, and electromagnetic valve 1A1 opens.The gas of air feed equipment output on the bank is sent into from nozzle air inlet 18, backs down the end cap 13 below nozzle, and is arranged by the water body around weld zone.Now, piston rod 9 and electromagnetic chuck are in the initial position at top dead centre place, and welding gun gun barrel is inserted thermophore barrel chamber, and when the bottom of welding rod thermophore barrel chamber contacts welding gun port, welding rod upper end just contacts with electromagnetic chuck.Now clicking the clamp bar button on electrode holder, the coil of electromagnetic chuck obtains electric, by welding rod 23 interlinear notes.After welding rod 23 end is clamped, gun barrel is withdrawn from from waterproof thermal-insulated device barrel chamber.End cap 22 upper end of welding rod thermophore is equipped with rubber seal, and under elastic mechanism 20 acts on, welding rod thermophore separates rear end cap 11 and can quickly close with welding gun, will not soak.
Step 3: after good for the position adjustment of welding gun, presses welding button 3.PLC control unit output signal controls the coil of proportional solenoid 1A4 and obtains electric, and piston rod 9 follows track 11 of double-acting miniature cylinder moves down, and welding rod 17 is quickly sent into downwards.After welding rod 17 and absorption surface, PLC control unit detects welding current, exports control signal, makes the coil losing electricity of proportional solenoid 1A4, and electromagnetic valve 1A2 obtains electric, and piston rod moves upward 0.5s, and welding rod pumpback, ignite electric arc.After 0.5s the coil of proportional solenoid 1A4 again electric, electromagnetic valve 1A2 dead electricity, welding rod continue feeding weld.The speed that moves down of piston rod 9 is matched by Underwater Welding engineer testing and welding current.
Step 4: when welding rod is nearly soldered, is experienced temperature by the temperature sensor on electromagnetic chuck top, and PLC control unit output signal is by welding arc automatic distinguishing, with burnout-proof piston rod 9 and electromagnetic chuck.Operator should unclamp welding button 3 immediately after finding arc extinction.Now, the piston rod 9 of double-acting miniature cylinder in succession electromagnetic chuck should in lower dead center.Now pressing the receipt button on electrode holder, the coil of electromagnetic valve 1A2 obtains electric, piston rod 9 moves, above moves on to trigger bit displacement sensor during top dead centre, the coil losing electricity of electromagnetic valve 1A2, and piston rod 9 is parked in top dead center position.Now click the clamp bar button on electrode holder again, by clamp bar push-button reset.Electromagnetic chuck coil KA3 dead electricity, the electrode stub not burnt down is from gun barrel port Automatic-falling.
Step 4: repeat to install in step 2 action of welding rod.The action repeating step 3 after welding rod clamps is welded.If welding process needing suspend, workpiece being processed, clicking the pause button 4 on electrode holder, now PLC control unit output signal, control proportional solenoid 1A4 coil and electromagnetic valve 1A2 coil all dead electricity, welding rod no longer down send, arc extinction.Piston rod 9 is parked in as you were.To again weld, then press pause button 4, button reset, proportional solenoid 1A4 coil again electric, welding rod down send, and the action of welding rod pumpback striking is such as described in step 3.
Step 5: when welding process terminates, first clicks the clamp bar button on electrode holder, is come off by electrode stub.Then clicking button 6 of supplying gas, button 6 of supplying gas resets.The valve core of the electromagnetic valve now protecting gas resets, and protection QI GUAN is fallen.The end cap 13 at nozzle place closes under elastic mechanism 14 acts on, in case immersion in gun barrel port (nozzle).Finally clicking the receipt button on electrode holder 1, piston rod 9 returns to top dead center position and prepares for welding next time.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and this utility model claims scope and defined by appending claims, description and equivalent thereof.
Claims (6)
1. the underwater dry-type electric arc welder with nozzle, it is characterised in that include welding gun, air feed equipment and control unit:
Described welding gun includes gun barrel and electrode holder, gun barrel is provided with air inlet, the automatic clamping mechanism of assembling welding rod it is provided with in gun barrel, on axial direction, the side tube chamber of gun barrel is connected with the outlet side of air feed equipment by described air inlet, and the port in this side pipe chamber is provided with gas nozzle, and is provided with the end cap of closed port, described end cap can overturn by external-open, and automatically controls closedown by elastic mechanism；Being provided with propulsive mechanism in gun barrel opposite side tube chamber, described automatic clamping mechanism is arranged on described propulsive mechanism, propulsive mechanism drive and move on gun barrel axial direction, and described air feed equipment, automatic clamping mechanism, propulsive mechanism are connected with described control unit respectively.
2. the underwater dry-type electric arc welder with nozzle according to claim 1, it is characterised in that be provided with welding rod thermophore:
Described welding rod thermophore is provided with the barrel chamber can being enclosed within welding gun gun barrel, barrel chamber port is provided with the barrel chamber end cap of closed port, described barrel chamber end cap can in open upset, and automatically control closedown by elastic mechanism, welding rod location and installation is at the location mid-shaft of barrel chamber, and a thermophore into the barrel chamber deposits an electrode.
3. the underwater dry-type electric arc welder with nozzle according to claim 2, it is characterised in that described welding rod thermophore is provided with sealing ring outside end cap, the external diameter of the internal diameter of described sealing ring and the welding gun gun barrel section that can be inserted into barrel chamber agrees with.
4. the underwater dry-type electric arc welder with nozzle according to claim 1,2 or 3, it is characterised in that being provided with temperature sensor on described propulsive mechanism or automatic clamping mechanism, described temperature sensor is connected with described control unit.
5. the underwater dry-type electric arc welder with nozzle according to claim 1,2 or 3, it is characterized in that, the middle part of welding gun gun barrel is provided with the guide rail of the constraint propulsive mechanism direction of motion, guide rail is electrically connected with the source of welding current by cable, as the ingredient of electrode, welding rod is electrically connected with guide rail by automatic clamping mechanism.
6. the underwater dry-type electric arc welder with nozzle according to claim 1,2 or 3, it is characterised in that:
Described propulsive mechanism is double-acting cylinder or hydraulic cylinder, and the chuck of automatic clamping mechanism is arranged on the piston rod stretching out cylinder body；
Welding circuit is provided with the current sensor of detection welding current, described cylinder or hydraulic cylinder control keying for the air inlet of cavity or the inlet passing ratio electromagnetic valve advanced to gun barrel port side by piston rod, described current sensor, proportional solenoid are connected with control unit respectively, control unit control the aperture of proportional solenoid according to the output signal of current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037641.9U CN205380346U (en) | 2016-01-15 | 2016-01-15 | Take arc welding of dry -type under water welding set of nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037641.9U CN205380346U (en) | 2016-01-15 | 2016-01-15 | Take arc welding of dry -type under water welding set of nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205380346U true CN205380346U (en) | 2016-07-13 |
Family
ID=56348590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620037641.9U Withdrawn - After Issue CN205380346U (en) | 2016-01-15 | 2016-01-15 | Take arc welding of dry -type under water welding set of nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205380346U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478959A (en) * | 2016-01-15 | 2016-04-13 | 江苏海事职业技术学院 | Underwater dry electric arc welding device with nozzle and welding method |
| CN112157337A (en) * | 2020-11-30 | 2021-01-01 | 苏州风何以机械设备有限公司 | Anti-splashing device for handheld electric arc welding electrode |
| CN112318006A (en) * | 2020-11-04 | 2021-02-05 | 王学金 | Dry welding and clamping equipment for underwater welding |
-
2016
- 2016-01-15 CN CN201620037641.9U patent/CN205380346U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478959A (en) * | 2016-01-15 | 2016-04-13 | 江苏海事职业技术学院 | Underwater dry electric arc welding device with nozzle and welding method |
| CN112318006A (en) * | 2020-11-04 | 2021-02-05 | 王学金 | Dry welding and clamping equipment for underwater welding |
| CN112157337A (en) * | 2020-11-30 | 2021-01-01 | 苏州风何以机械设备有限公司 | Anti-splashing device for handheld electric arc welding electrode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105478959A (en) | Underwater dry electric arc welding device with nozzle and welding method | |
| CN205380346U (en) | Take arc welding of dry -type under water welding set of nozzle | |
| CN105689867A (en) | Gas shielded welding machine provided with air throttling device and working method of gas shielded welding machine | |
| CN205111033U (en) | Gas shield electric welding machine | |
| CN204524502U (en) | A kind of novel welding set | |
| CN1817541A (en) | Semi-automatic underwater welder with local dryness | |
| CN208628617U (en) | Automatic soldering is used in a kind of production of auto parts and components | |
| CN203304753U (en) | Argon-recyclable TIG welding device | |
| CN201175802Y (en) | Nozzle of gas-shielded welder | |
| CN205888337U (en) | Anti -burning electric soldering tweezers | |
| CN206677363U (en) | A kind of argon arc welding machine for being easy to radiating | |
| CN208246022U (en) | A kind of electric welding blowout prevention spark device | |
| CN110977114A (en) | Steel bridge welding process and device thereof | |
| CN206415714U (en) | A kind of robot welding wire aoxidizes removing device | |
| CN209078024U (en) | A kind of Integral pneumatic welding gun | |
| CN208713114U (en) | A kind of welding mechanism of mash welder | |
| JPS54136547A (en) | Consumable electrode arc welder servable for gouging work | |
| CN216263972U (en) | Gas protection electric welding machine capable of effectively preventing light pollution | |
| CN205673745U (en) | Fixed welding gun group | |
| CN113696212B (en) | Operating head of heat-sensitive moxibustion robot | |
| CN211248736U (en) | Steel bridge welding device | |
| CN208771126U (en) | A kind of concentration exhaust apparatus of transformer lead pin hatching line laser machine | |
| CN203992777U (en) | Air cooling type argon arc welding gun | |
| CN203304754U (en) | Automatic submerged arc welding device for tank | |
| CN215654549U (en) | Waste gas treatment device of environment-friendly heat cleaning furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160713 Effective date of abandoning: 20180123 |