CN204843225U - Crin MIG - aluminium welding head - Google Patents
Crin MIG - aluminium welding head Download PDFInfo
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- CN204843225U CN204843225U CN201520500496.9U CN201520500496U CN204843225U CN 204843225 U CN204843225 U CN 204843225U CN 201520500496 U CN201520500496 U CN 201520500496U CN 204843225 U CN204843225 U CN 204843225U
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Abstract
The utility model discloses a crin MIG - aluminium welding head, it includes control system, still include with wire feed rolls alignment mechanism, welding wire drive feed mechanism, welding wire play wire feed rolls mouth alignment mechanism and water -cooled welder are gone into to the welding wire that control system connects, the welding wire go into wire feed rolls alignment mechanism with welding wire drive feed mechanism is connected, welding wire drive feed mechanism with the welding wire goes out wire feed rolls mouth alignment mechanism and connects, the welding wire go out wire feed rolls mouth alignment mechanism with water -cooled connect the welding torch. The utility model discloses a welding wire advances the wire feed rolls entry all has school silk mechanism with the export to guarantee the straightness accuracy of welding wire after getting into welder, send a resistance when reducing to weld, thereby it is steady to reach when the welding welding current, effectively improve because the inhomogeneities of welding resistance leads to welding current undulant the shaping of welding seam during the influence welding.
Description
Technical field
The utility model relates to automatic welding equipment technical field, is specifically related to a kind of crin MIG-aluminum soldering machine head.
Background technology
Along with the development of aluminium, the process technology of aluminium also obtains the progress of advancing by leaps and bounds.But, because aluminium has multiple physics and the chemical property features such as oxidisability is strong, fusing point is low, heat conduction is fast, linear expansion coefficient is large, the latent heat of fusion is large, therefore select the welding method be applicable to become the emphasis of concern.For Welded, the welding procedure that current most of producer adopts is AC-TIG WELDING and the welding of consumable electrode filament gas shielded.Ac argon arc weld connects, and usually adopts single welding or double rush-harvesting and rush-planting synchronous welding, although quality can ensure, appearance forming is fine, and welding efficiency is lower, and production cost is high.Adopt consumable electrode filament gas to protect welding, although welding efficiency obtains certain improvement, welding inherent quality is difficult to ensure, easily produces pore problem; Therefore cannot be used widely in the welding of pressure vessel critical welding seams always, be only applied to the welding of structural member.It is how under the prerequisite ensureing welding quality, to improve welding efficiency that the cut deal of industrial aluminium welds current technical barrier, for the aluminum alloy materials of cut deal, by suitably increasing heat input, reduce molten bath setting rate, bubble is allowed fully to overflow, be that one both can solve pore problem, the effective way of welding efficiency can be improved again.
Why consumable electrode filament MIG weldering cannot be applied in pressure vessel critical welding seams, and most important reason to solve pore problem.The reason that aluminium weld blowhole is formed, main or the process based prediction model of aluminium welding itself determines, the dissolubility difference of hydrogen in liquid aluminium alloy and solid aluminum alloy is very large, the density of aluminium alloy is little simultaneously, and the rate of climb of bubble in molten bath is comparatively slow, adds that the thermal conductivity of aluminium is strong, molten bath condensation is fast, therefore, the bubble of rising often has little time effusion, stays in weld seam and becomes pore; The oxidability of aluminium alloy simultaneously, aluminium is very easily combined with oxygen in atmosphere and generates fine and close solid Al
2o
3film is thin, thickness about 0.1 μm, Al
2o
3fusing point up to 2030 DEG C, considerably beyond the fusing point (about 660 DEG C) of Al and Alalloy, Al
2o
3density 3.5-3.9g/cm
3, the density of Al is 2.7g/cm
3, be about 1.4 times of aluminium; In welding process, aluminum oxide film can hinder the good combination between metal, and easily forms slag inclusion.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides the crin MIG-aluminum soldering machine head of the aluminum alloy materials meeting cut deal.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of crin MIG-aluminum soldering machine head, it comprises control system, also comprises that the welding wire be connected with described control system enters wire feed rolls aligning mechanism, welding wire drives feed mechanism, welding wire goes out wire feed rolls mouth aligning mechanism and water cooled welding gun; Described welding wire enters wire feed rolls aligning mechanism and drives feed mechanism to be connected with described welding wire; Described welding wire driving feed mechanism goes out wire feed rolls mouth aligning mechanism with described welding wire and is connected; Described welding wire goes out wire feed rolls mouth aligning mechanism and is connected with described water cooled welding gun.
Further technical scheme is that welding wire enters that wire feed rolls aligning mechanism comprises fast pulley, the school silk wheel that floats, school silk wheel rotary bracket and first compress operating grip; Described fast pulley is taken turns with described floating school silk and is connected, and silk wheel in described floating school is taken turns rotary bracket with described school silk and is connected, and described school silk wheel rotary bracket and described first compresses operating grip and is connected.
Further technical scheme is that fast pulley inside is provided with rolling bearing.
Further technical scheme is that welding wire drives feed mechanism to comprise welding wire drive motors, wire feed rolls assembly, thread pressing wheel and the second compression operating grip; Described drive motors is connected with described wire feed rolls assembly; Described thread pressing wheel and described second compresses operating grip and is connected.
Further technical scheme is that wire feed rolls assembly comprises wire feed rolls insulation sleeve and wire feed rolls, and described wire feed rolls insulation sleeve is connected with described wire feed rolls; Described wire feed rolls insulation sleeve is that 3840 epoxy novolac materials are made.
Further technical scheme is that water cooled welding gun forms primarily of the enterprising air chamber connected successively, middle air storage chamber, lower discharge chamber, conducting rod, ignition tip and water-cooled nozzle.
Further technical scheme is that enterprising air chamber forms primarily of the air inlet pipe connected successively, air chamber, upper baffle and upper insulation sleeve.
Further the middle air storage chamber of technical scheme shunts copper mesh composition under baffle, gas in connecting successively shunt copper mesh, copper bush and gas.
Further to be lower discharge chamber to be connected copper sheathing, upper diversion sleeve, air chamber primarily of the upper chamber connected successively to technical scheme with lower chamber be connected copper sheathing with water-cooled nozzle and lower diversion sleeve forms.
Further technical scheme is that water-cooled nozzle forms primarily of water inlet pipe, outlet pipe and nozzle; Described water inlet pipe is connected with described nozzle, and described outlet pipe is connected with described nozzle; Described water inlet pipe and outlet pipe are all that red copper material is made.
Compared with prior art, one of the beneficial effects of the utility model are: welding wire of the present utility model enters wire feed rolls entrance and exit Jun Youjiaosi mechanism, thus ensure the linearity of welding wire after entering welding gun, wire-feeder resistance when reducing to weld, thus it is steady to reach the welding current when welding, effective improvement, owing to welding the inhomogeneities of resistance, causes welding current to fluctuate, and during impact welding, weld seam is shaping.
Weld for crin MIG, gage of wire is large, and electric current is large, and therefore shielding gas flow amount is large, usually will reach the argon flow amount of 50 ~ 60L/min, so be furnished with the special argon gas stream gauge of 120L.
Crin MIG is welded, gas flow is large, and speed is fast, easily causes arc zone turbulence, affect arc shape and stability, therefore welding gun devises unique current divider (upper and lower shunting body), and argon gas fully mixes after entering intermediate cap, through current divider out after be evenly distributed at whole arc zone, speed is moderate, in welding process, electric arc is highly stable, and arc stiffness is good, can ensure enough fusion penetrations.
For avoiding arc light radiations heat energy scaling loss protective cover and electrode, protective cover is designed to water-cooling pattern.
Control system adopts the drive plate of the KZ-1 of my company, and the control system of the Multifunctional buried arc welding trolley produced with my company is general.
Because when crin MIG is welded on welding, the removing surface degree of butt-welding fitting and welding wire requires higher, so the wire feeder portion of material of this head adopts all steel material, welding gun part adopts full copper piece material, improve equipment appearance performance and parts cleaning degree in use, improve the self-radiating of the welding gun when long-time welding simultaneously, extend the service life of welding gun.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is that in the utility model embodiment, welding wire enters wire feed rolls mouth aligning mechanism primary structure schematic diagram.
Fig. 3 is that in the utility model embodiment, welding wire drives feed mechanism primary structure schematic diagram.
Fig. 4 is that in the utility model embodiment, welding wire goes out wire feed rolls mouth aligning mechanism primary structure schematic diagram.
Fig. 5 is water cooled welding gun structural representation in the utility model embodiment.
Fig. 6 is upper air cell structure schematic diagram in the utility model embodiment.
Fig. 7 is the middle air storage chamber structural representation in the utility model embodiment.
Fig. 8 is lower discharge chamber structural representation in the utility model embodiment.
Fig. 9 is water-cooled nozzle structural representation in the utility model embodiment.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in detail.
As shown in Figures 1 to 9, according to an embodiment of the present utility model, the present embodiment discloses a kind of crin MIG-aluminum soldering machine head, and it mainly comprises: welding wire enters wire feed rolls mouth aligning mechanism 1, welding wire drives feed mechanism 2, welding wire goes out wire feed rolls mouth aligning mechanism 3, water cooled welding torch 4 and control system.Concrete, in the present embodiment, welding wire enters the effect of wire feed rolls mouth aligning mechanism in this head is that alignment enters the welding wire of wire feed rolls, makes welding wire more straight before entering wire feed rolls, thus ensures that wire feed is steady; It floats primarily of two groups of fast pulleys 11, a group, and school silk takes turns 12, rotary bracket 13 taken turns by school silk and the first compression operating grip 14 forms.Wherein fast pulley is made up of fixed axis, rolling bearing and wheel case; The effect of fast pulley in this head is for alignment welding wire provides each strong point up and down, is provided with rolling bearing in fast pulley simultaneously, thus ensures that welding wire is more steady through the little operation of out-of-date resistance in the above.
Further, the school silk wheel that floats is made up of mandrel, rolling bearing and wheel case, and the school effect of silk wheel in this head of floating is for aligning mechanism provides the 3rd pressure spot.
The school effect of silk wheel rotary bracket in this head is for silk wheel in floating school provides stress action spot, the power of compression first operating grip is passed to floating school silk wheel.Compressing the effect of operating grip in this head is for aligning mechanism provides external force, when operating personnel are left-handed or dextrorotation compresses operating grip, determines the size of aligning mechanism strength.
Further, in the present embodiment, welding wire drives feed mechanism to form primarily of welding wire drive motors 21, wire feed rolls assembly 22, thread pressing wheel 23 and the second compression operating grip 24; The model that welding wire drive motors and decelerator adopt Chengdu Hanyan Weida Technology Co., Ltd. to produce is that A2-9 hangs submerged arc welding machine head drive motors, and this drive motors uses tool to have the following advantages on this head:
A. its structure adopts full-enclosed structure, can use under the environment that dust is more;
B. its motor is DC servo motor, can realize speed seal ring and control, thus reach the object accurately controlling wire feed rate from control;
C. owing to adopting the model of Chengdu Hanyan Weida Technology Co., Ltd. to be that A2-9 hangs submerged arc welding machine head drive motors, it controls the controller that employing model is KZ-1 Multifunctional buried arc welding trolley, thus meets the needs that a kind of controller realizes two kinds of welding manners replacings.
In the present embodiment, the object of wire feed rolls assembly drives welding wire to enter water cooled welding torch; Wire feed rolls assembly is primarily of wire feed rolls insulation sleeve and wire feed rolls composition; The effect of wire feed rolls insulation sleeve is that the revolving force of drive motors is passed to wire feed rolls, its material adopts 3840 epoxy novolacs simultaneously, thus reach the object that drive motors and welding system fully insulate, avoid because welding cathode contact is bad, form welding circuit by drive motors, thus damage drive motors; The model that wire feed rolls adopts Chengdu Hanyan Weida Technology Co., Ltd. to produce is the standard wire feed rolls that A2-9 hangs submerged arc welding machine head, thus reaches the needs that namely this head can meet MIG and SEW two kinds of welding manner wire feeds.
Further, thread pressing wheel adopts roller bearing to be directly pressed in the reverse side of welding wire, increases the frictional force of welding wire and wire feed rolls, its pressing section adopts the handle having stage clip, adopt the principle pressure welding silk of lever, ensure the constant pressure of welding wire and wire feed rolls, thus ensure the stationarity of wire feed.
Further, because its rigidity of aluminium alloy welding wire is all lower than welding wire for hidden arc welding, all straight after entering water cooled welding torch for ensureing aluminium welding wire, so adopt secondary school silk; It is that alignment enters the welding wire of water cooled welding torch that welding wire goes out the effect of wire feed rolls mouth aligning mechanism in this head, makes welding wire more straight before entering water cooled welding torch, thus ensures that welding wire and ignition tip conduct electricity evenly, thus reduce the fluctuation of electric current when welding; Welding wire goes out by one group of fast pulley 31, a group, wire feed rolls mouth aligning mechanism floats that school silk takes turns 32, school silk is taken turns rotary bracket 33 and the 3rd and compressed operating grip 34 and form.
Further, in the present embodiment, water cooled welding torch forms primarily of enterprising air chamber 41, middle air storage chamber 42, lower discharge chamber 43, conducting rod 44, ignition tip 45 and water-cooled nozzle 46; Wherein enterprising air chamber forms primarily of air inlet pipe 411, air chamber 412, upper baffle 413 and upper insulation sleeve 414.
Further, the effect of middle air storage chamber in this welding gun is, allow argon gas at middle air storage chamber second diffluence, ensure argon gas entering lower discharge chamber Flow Velocity evenly, form primarily of shunting copper mesh 424 under middle baffle 421, gas being shunted copper mesh 422, copper bush 423 and gas.
Further, lower discharge chamber to be connected copper sheathing 431, upper diversion sleeve 432, air chamber primarily of upper chamber and to be connected copper sheathing 433 with water-cooled nozzle and lower diversion sleeve 434 forms with lower chamber.
In the present embodiment, conducting rod Main Function is that positive pole is communicated with ignition tip by welding, forms current loop required when welding, simultaneously for welding wire passes through path smoothly by providing safety.
Ignition tip Main Function allows welding wire fully contact with ignition tip, forms current loop required when welding.
Further, in the present embodiment, water-cooled nozzle forms primarily of water inlet pipe 441, outlet pipe 442 and nozzle 443; Concrete, the effect of water inlet pipe is that the water at low temperature in cooling water tank is imported nozzle cooling chamber, and its material adopts the convenient processing of red copper and welding, effectively can reduce the formation of incrustation scale simultaneously; The effect of outlet pipe is that the high-temperature water in nozzle cooling chamber is derived nozzle cooling chamber, flows into cooling water tank, takes away the heat that nozzle produces at hyperthermia radiation, reduce the bulk temperature that whole welding gun is large, improve the service life of ignition tip and welding gun; Its material adopts the convenient processing of red copper and welding, effectively can reduce the formation of incrustation scale simultaneously; The effect of nozzle is protection appearance of weld during welding; form obvious range of atomization at weld edge simultaneously; there is provided speed moderate argon shield; thus when making welding electric arc and protective atmosphere more concentrated; fusion penetration is darker; molten bath is under protective cover atmosphere protection always, and weld seam is not oxidized, and has metallic luster.
Due to when carrying out crin MIG and welding, requiring that welding gun will have certain angle of inclination in workpiece, is advisable with 75 ~ 90 degree in welding gun inclination angle; Angle of inclination is larger, and fusion penetration is more shallow, and molten bath scope is also larger, and arc atmosphere is not concentrated simultaneously, and liquid metals protection is bad, can cause metal severe oxidation, the shortcomings such as appearance of weld is bad; Based on the appearance of this situation, increase the diameter of nozzle in the present embodiment, the outlet interior diameter of nozzle is Φ 33mm; so just can ensure that the angle of inclination of welding gun and workpiece is as far as possible little; effectively raise weld seam protection scope, improve the shaping of weld seam simultaneously, increase welding penetration.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any one embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although the multiple explanatory embodiment here with reference to utility model is described the utility model, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (10)
1. a crin MIG-aluminum soldering machine head, it comprises control system, it is characterized in that: also comprise that the welding wire be connected with described control system enters wire feed rolls aligning mechanism, welding wire drives feed mechanism, welding wire goes out wire feed rolls mouth aligning mechanism and water cooled welding gun; Described welding wire enters wire feed rolls aligning mechanism and drives feed mechanism to be connected with described welding wire; Described welding wire driving feed mechanism goes out wire feed rolls mouth aligning mechanism with described welding wire and is connected; Described welding wire goes out wire feed rolls mouth aligning mechanism and is connected with described water cooled welding gun.
2. crin MIG-aluminum soldering machine head according to claim 1, is characterized in that described welding wire enters wire feed rolls aligning mechanism and comprises fast pulley, floating school silk wheel, school silk wheel rotary bracket and the first compression operating grip; Described fast pulley is taken turns with described floating school silk and is connected, and silk wheel in described floating school is taken turns rotary bracket with described school silk and is connected, and described school silk wheel rotary bracket and described first compresses operating grip and is connected.
3. crin MIG-aluminum soldering machine head according to claim 2, is characterized in that described fast pulley inside is provided with rolling bearing.
4. crin MIG-aluminum soldering machine head according to claim 1, is characterized in that described welding wire drives feed mechanism to comprise welding wire drive motors, wire feed rolls assembly, thread pressing wheel and the second compression operating grip; Described drive motors is connected with described wire feed rolls assembly; Described thread pressing wheel and described second compresses operating grip and is connected.
5. crin MIG-aluminum soldering machine head according to claim 4, it is characterized in that described wire feed rolls assembly comprises wire feed rolls insulation sleeve and wire feed rolls, described wire feed rolls insulation sleeve is connected with described wire feed rolls; Described wire feed rolls insulation sleeve is that 3840 epoxy novolac materials are made.
6. crin MIG-aluminum soldering machine head according to claim 1, is characterized in that described water cooled welding gun forms primarily of the enterprising air chamber connected successively, middle air storage chamber, lower discharge chamber, conducting rod, ignition tip and water-cooled nozzle.
7. crin MIG-aluminum soldering machine head according to claim 6, is characterized in that described enterprising air chamber forms primarily of the air inlet pipe connected successively, air chamber, upper baffle and upper insulation sleeve.
8. crin MIG-aluminum soldering machine head according to claim 6, is characterized in that described middle air storage chamber shunts copper mesh composition under baffle, gas in connecting successively shunt copper mesh, copper bush and gas.
9. crin MIG-aluminum soldering machine head according to claim 6, is characterized in that described lower discharge chamber to be connected copper sheathing, upper diversion sleeve, air chamber primarily of the upper chamber connected successively and to be connected copper sheathing with water-cooled nozzle and lower diversion sleeve forms with lower chamber.
10. crin MIG-aluminum soldering machine head according to claim 6, is characterized in that described water-cooled nozzle forms primarily of water inlet pipe, outlet pipe and nozzle; Described water inlet pipe is connected with described nozzle, and described outlet pipe is connected with described nozzle; Described water inlet pipe and outlet pipe are all that red copper material is made.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500496.9U CN204843225U (en) | 2015-07-10 | 2015-07-10 | Crin MIG - aluminium welding head |
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| CN201520500496.9U CN204843225U (en) | 2015-07-10 | 2015-07-10 | Crin MIG - aluminium welding head |
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| CN204843225U true CN204843225U (en) | 2015-12-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736127A (en) * | 2017-04-06 | 2017-05-31 | 四川华冶电气有限公司 | Cathode steel bar total cross-section bonding machine |
-
2015
- 2015-07-10 CN CN201520500496.9U patent/CN204843225U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736127A (en) * | 2017-04-06 | 2017-05-31 | 四川华冶电气有限公司 | Cathode steel bar total cross-section bonding machine |
| CN106736127B (en) * | 2017-04-06 | 2018-08-24 | 四川华冶电气有限公司 | Cathode steel bar total cross-section bonding machine |
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