CN110524096A - For connecting the plasma gun of vacuum welding equipment - Google Patents
For connecting the plasma gun of vacuum welding equipment Download PDFInfo
- Publication number
- CN110524096A CN110524096A CN201910719646.8A CN201910719646A CN110524096A CN 110524096 A CN110524096 A CN 110524096A CN 201910719646 A CN201910719646 A CN 201910719646A CN 110524096 A CN110524096 A CN 110524096A
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- nozzle
- electrode tip
- water cooling
- water
- plasma
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- 238000003466 welding Methods 0.000 title claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 110
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 125000006850 spacer group Chemical group 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 39
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000006641 stabilisation Effects 0.000 claims description 14
- 238000011105 stabilization Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 239000001307 helium Substances 0.000 claims description 9
- 229910052734 helium Inorganic materials 0.000 claims description 9
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 238000001727 in vivo Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 241001672694 Citrus reticulata Species 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 25
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 238000005260 corrosion Methods 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 10
- 230000008020 evaporation Effects 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000002195 synergetic effect Effects 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 230000008602 contraction Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000027950 fever generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
Abstract
It provides a kind of for connecting the plasma gun of vacuum welding equipment, there is the head of falling cup-shape electrode, the cooling spacer of the water cooling jacket to turn up upwards and the internal full immersed type water cooling of set is integrally formed with electrode tip；Tight fit installation rounding frustum shape has the guide ring of swirl channel outside electrode tip water cooling jacket；Swirl channel lower central is equipped with the gallery centre bore that a length of twice of diameter of hole is integrally formed with nozzle；Gallery centre bore, which is integrally formed to turn up upwards, is formed with the cooling spacer of the double-deck nozzle water of nozzle water cooling jacket and the intracorporal interval of set；The cooling spacer of nozzle water and housing formed in the abundant water cooling of nozzle axially outer side into outgoing water cooling circuit.Highly ionized and sufficiently compression can be obtained in gas in plasma column of the present invention, and arc energy high concentration and linearity height are designed without beat, the electrode tip of full immersed type water-cooling structure, effectively extends the welding gun service life；And weldquality is uniform, it is relatively reliable, practical and durable.
Description
Technical field
The invention belongs to operations to transport plasma gun technical field, and in particular to it is a kind of for connect vacuum welding equipment it is equal from
Sub- welding gun.
Background technique
Plasma gun is to generate electric arc between rifle inwardly projecting orifice (anode) and electrode (cathode) by penetrating, and ionizes gas by electric current
Body ionizes gas, to reach the state of plasma.The steam of ionization is by the internal pressure generated with plasma beam
Form jetting nozzle, that is, convert electrical energy into the energy of plasma arc to bombard metal, whereby to non-combustible material (such as sponge
The metal or alloy electrode such as titanium, zirconium briquetting) it is cut, it welds, the plasma of the heat treatment process of melting welding and other forms
Generating means.Currently, dividing plasma gun according to the electrode head material connecting with vacuum welding equipment, it is generally divided into two kinds: one
Kind is the plasma gun using tungsten electrode, and another kind uses the plasma gun of copper alloy electrode.Wherein, electrode tip and nozzle
For one of the main consumable part of welding gun, the structure, quality of the two are directly related to the quality and life of Plasma Welding product
Produce efficiency.Under the prior art, lasting a long time for tungsten electrode plasma gun is but had the disadvantage that, is easy to produce in use
Raw high desnity metal is mingled with, and influences properties of product.It is mingled with although copper electrode plasma gun will not generate high density, is welded
Rifle structure influences, and service life is shorter, it is therefore desirable to frequently replace electrode tip, reduce production efficiency, and influence to a certain degree
Welding quality.In this regard, to improve and evading technology drawback present in aforementioned techniques status, it is proposed that one kind can effectively reduce
The corrosion of local evaporation caused by copper electrode generates heat；It is also avoided that simultaneously and generates the plasma that high desnity metal is mingled in welding process
Welding gun structure technical solution.
Summary of the invention
Present invention solves the technical problem that: provide it is a kind of for connecting the plasma gun of vacuum welding equipment, by falling cup-shaped
The improvement of the electrode tip and electrode tip axial direction full immersed type water-cooling structure of structure, solve the prior art under plasma gun because of electricity
The corrosion of local evaporation caused by the insufficient fever of cartridge water cooling, causes electrode tip service life short, need to frequently replace, and reduces production
The technical issues of efficiency；By the guide ring and guide ring mounting structure of special construction, synergetic electrode head water cooling and nozzle
Water-cooling structure collective effect, solution high-temperature plasma arc column energy density concentration is limited, and working gas degree of ionization needs into one
The technical issues of step is promoted；By guide ring to the spiral eddy flow effect of contraction of plasma column, a length of bore dia in hole is cooperateed with
Twice of gallery center hole structure improves collective effect, solves under the prior art plasma column to the anti-beat of central compressed
The linearity have technical problem to be hoisted.
The technical solution adopted by the present invention: for connecting the plasma gun of vacuum welding equipment, with what is installed in nozzle
Electrode tip, and the electrode block being arranged outside nozzle, electrode tip and electrode block electric connection of power supply form plasma column, and feature exists
In: electrode tip is coaxially integrally formed interval of turning up upwards with electrode tip rim of a cup bottom end and is formed with electrode tip water cooling in cup-like structure
But housing, the interval between electrode tip lateral wall is coaxially provided with the cooling spacer of electrode tip water to electrode tip water cooling jacket set in vivo,
The cooling spacer of electrode tip water and electrode tip water cooling jacket formed in electrode tip axially outer side full immersed type water cooling into outgoing
Water cooling circuit；It is close to the air guide that the cooling jacket bottom excircle side wall tight fit installation of electrode tip water is in rounding frustum shape
Ring, the insertion of guide ring lateral wall are mounted on the nozzle eddy flow cup inner sidewall in inverted cone cup body shape；Nozzle eddy flow cup inner sidewall
Be made positioned at nozzle top and nozzle integrated molding, and be formed between nozzle eddy flow cup inner sidewall and guide ring lateral wall make etc. from
Swirl channel of the charged particle from the helically wire shaped of the conducting that tangentially becomes a mandarin in subarc column；The swirl channel and water are cooling outer
Set covers external plasma gas passage connection composition for air circuit；Swirl channel lower central is equipped with gallery centre bore,
Gallery center hole length is twice of its diameter and is made with the molding of nozzle portion integral；Gallery centre bore bottom end with
Nozzle is coaxially integrally formed interval of turning up upwards and is formed with nozzle water cooling jacket, nozzle water cooling jacket set in vivo with nozzle eddy flow
It is equipped with the cooling spacer of double-deck nozzle water in interval between cup lateral wall, is spaced in the cooling spacer innermost layer spacer of double-deck nozzle water
Side wall is close to the installation of nozzle eddy flow cup lateral wall tight fit；The cooling spacer of double-deck nozzle water in interval and nozzle water cooling jacket shape
The abundant water cooling of nozzle axially outer side is interior into outgoing water cooling circuit in pairs.
In above-mentioned technical proposal, to effectively reduce local evaporation corrosion caused by copper electrode generates heat；It avoids welding simultaneously
High desnity metal is generated in journey to be mingled with, preferably: the electrode tip is oxygen-free copper electrode tip, and electrode tip electric connection of power supply is positive,
Electrode block electric connection of power supply cathode.
In above-mentioned technical proposal, sufficient axial water-cooled effect is realized for the electrode tip to cup-like structure, preferably: institute
It states the integrally formed bottom end inner sidewall in electrode tip bottom end and electrode tip water cooling jacket bottom end and the cooling spacer of electrode tip water is axial
The axial gap of reserved≤10mm between Basolateral wall.
In any of the above-described technical solution, to prevent plasma column 5 because beat occurs in the setting of guide ring 6, further:
Circulation current stabilization cavity is equipped with below the guide ring between gallery centre bore, the circulation current stabilization cavity is in nozzle eddy flow
Cup cup body inside bottom is arranged and is cylindrical cavity.
In above-mentioned technical proposal, to promote the sealing performance between nozzle 1 and the cooling spacer 104 of nozzle water, further:
Mating surface, which is equipped with, between the nozzle eddy flow cup cup body lateral wall and the cooling spacer body inner sidewall of nozzle water is fitted in groove
Sealing ring.
In above-mentioned technical proposal, to control using gas mass flow meter 9, stable plasma column gas source is maintained to supply
It gives, preferably: supplying argon gas or helium between the cooling spacer inner sidewall of the nozzle water and electrode tip water cooling jacket lateral wall；
It supplies and gas mass flow meter is installed on the steam line of argon gas or helium.
In above-mentioned technical proposal, for convenience of dismantling and replacing, and guarantee the sealing performance of welding gun, further: the spray
Mouth water cooling jacket is fixed with one with welding gun housing by the sealing of sealing ring companion flange formula connection structure axial compression.
The present invention compared with prior art the advantages of:
1, this programme falls the improvement of the electrode tip and electrode tip axial direction full immersed type water-cooling structure of cup-like structure, can equity
The abundant water cooling of ion welding gun electrode head, the corrosion of local evaporation caused by avoiding electrode tip from generating heat, extends electrode tip service life, is
Improving production efficiency provides reliable guarantee；This programme back taper is formed with the guide ring and guide ring 6 of helix swirl channel 601
Mounting structure, 1 full immersed type water-cooling structure collective effect of 2 full immersed type water cooling of synergetic electrode head and nozzle, high-temperature plasma arc
Column energy density is more concentrated, and working gas degree of ionization is obviously improved；The helix swirl channel 601 of guide ring 6 is to plasma
The spiral eddy flow effect of contraction of arc column, 102 structure of gallery centre bore that a length of twice of bore dia of collaboration hole are improved common
Effect, plasma column are obviously improved to the anti-bias pendulum linearity and energy density of central compressed, especially meet titanium sponge, zirconium
Equal metal or alloy electrode presses fast integral solder demand；
2, this programme uses oxygen-free copper electrode tip, synergetic electrode head and electrode block and power supply anti-convention to be conductively connected common make
With, not only avoid be easy to produce in lead electrode welding process high desnity metal be mingled with influence welding quality the technical issues of；And
And local evaporation corrosion caused by copper electrode generates heat is effectively prevented, therefore, the service life is longer for electrode tip, plasma pipette tips
Comprehensive service life effectively extends to 200 hours or more；
3, this programme plasma gas is converted from the helix ring of eddy of conducting ring 6 into the higher gallery of the linearity
During 102 high-density plasma arc column of heart hole, transition is carried out by circulation current stabilization cavity 602；Wherein, gallery centre bore
102 pairs of plasma columns 5 play the role of mechanical compression, make 5 reduced cross-sectional area of plasma column；And circulation current stabilization cavity 602 is right
5 energy of plasma column plays the role of transition current stabilization before further assembling, and prevents plasma column 5 from beat, plasma arc occur
It is more reliable and more stable to weld quality；
4, this programme nozzle 1 and electrode tip 2 is interior into outgoing full immersed type water-cooling structure, plays thermal contraction to electric arc and arrests
Shu Zuoyong, air-flow realizes external cooling and constraint after the water cooling that plasma column 5 is constantly sent by outer portion near end, makes ion arc column
5 conductive sections reduce, and generate thermal pinch, and plasma column 5 is further compressed；It at the same time, is 5 electricity of plasma column
Stream is smoothly from the arc column center of the gallery centre bore 102 of nozzle 1 by providing support, and conjunction with mechanical is shunk and water cooling is restrained
Collective effect is shunk, arc current density further sharply increases；
5, the charged particle in this programme plasma column 5 is logical in the 6 helix eddy flow of guide ring of back taper tangential flow guiding
Under road 601 acts on, the charging particle movement in plasma column 5 oneself can generate magnetic field electromagnetic force, make between charged particle
It attracts each other, generates pinch effect, and then compress 5 electric arc of plasma column further；
6, this programme plasma column 5 is heat-shrinked by mechanical compression, water cooling, electromagnetism is heat-shrinked three's synergistic effect, arc
Gas in column has obtained the ionization of height and has fully compressed, arc energy by high concentration, temperature up to very high degree (about
1~20,000 degree), after the effect of pinch effect and the thermal diffusion of internal arctube reach balance, electric arc becomes stable plasma arc
Complete the welding of particulate metal.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Specific embodiment
1 specific embodiments of the present invention are described with reference to the accompanying drawing.It is worth understanding, embodiment is described below and is only shown
Example property, rather than to concrete restriction of the invention.
Embodiment below facilitates a better understanding of the present invention, but does not limit the present invention.Plasma in following embodiments
Arc column obtains the control method of stably and controllable plasma column 5 by the control of gas mass flow meter, is conventional method.It is following
Component materials used in embodiment (such as oxygen-free copper) are unless otherwise specified commercially available.Related vacuum welding in following embodiments
The realization for the control circuit that case and plasma gun are electrically connected is unless otherwise specified conventional control mode.
In the present invention, in the absence of explanation to the contrary, it is to be understood that: term " center ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "inner", "outside", "top", "bottom" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " connects
Connect ", " setting ", " being equipped with " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, set
It sets, or is integrally connected, is arranged.For another example can be directly connected, can also be indirectly connected by other intermediate members.It is right
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
For connecting the plasma gun of vacuum welding equipment, there is the electrode tip 2 installed in nozzle 1, and in 1 peripheral hardware of nozzle
The electrode block 3 set, electrode tip 2 and 3 electric connection of power supply 4 of electrode block form plasma column 5, are different from the prior art down, authorize
Notification number is a kind of " plasma welding gun head " patent of invention of CN201669504U: the feature of this patent plasma welding gun head
Be: (as shown in Figure 1) described electrode tip 2 is coaxially integrally formed with 2 rim of a cup bottom end of electrode tip and turns up upwards in cup-like structure
Interval is formed with electrode tip water cooling jacket 201, and 201 sets of the electrode tip water cooling jacket is in vivo between 2 lateral wall of electrode tip
Interval is coaxially provided with the cooling spacer 202 of electrode tip water, the cooling spacer 202 of the electrode tip water and electrode tip water cooling jacket 201
Formed in 2 axially outer side full immersed type water cooling of electrode tip into outgoing water cooling circuit；As it can be seen that the present invention passes through the knot of falling cup-shaped
The structure improvement of the electrode tip 2 of structure and electrode tip 2 and the integrally formed water-cooling structure of water cooling jacket 201, compared with the prior art
For, the full immersed type for realizing electrode tip 2 is fully cooled, the generation of 2 local pyrexia of electrode tip evaporation corrosion is effectively prevented, because
The service life is longer for this.Moreover, being close to the installation of electrode tip water cooling jacket 201 bottom cylindrical week side wall tight fit is in rounding
The guide ring 6 of frustum shape, and the insertion of 6 lateral wall of guide ring is mounted in the nozzle eddy flow cup 101 in inverted cone cup body shape
Side wall；101 inner sidewall of nozzle eddy flow cup is located at 1 top of nozzle and is made with the integrated molding of nozzle 1, and nozzle eddy flow cup 101
Being formed between 6 lateral wall of inner sidewall and guide ring makes in plasma column 5 charged particle from the helically line for the conducting that tangentially becomes a mandarin
The swirl channel 601 of shape；The swirl channel 601 is connected to group with 201 sets of external plasma gas passages of water cooling jacket
At for air circuit.That is the present invention by the setting of guide ring 6, gas by guide ring 6 during flow velocity be improved, and cut
Line direction enters electrode cephalic par, realizes plasma column 5 to central compressed, the high-temperature plasma of energy density high concentration
The generation of arc column 5 in 5 high speed impact to metal block of high-temperature plasma arc column, can be such that it melts rapidly and reach welding effect.Not only
In this way, 601 lower central of swirl channel is equipped with gallery centre bore 102,102 length of gallery centre bore is
And it is made with the molding of 1 portion integral of nozzle twice of its diameter；Gallery centre bore 102 can play plasma column 5
The concentration effect of contraction of current stabilization constant current, enables the degree of ionization of working gas to increase, to obtain stably and controllable plasma column.
On this basis, to carry out abundant water cooling to nozzle 1: 102 bottom end of gallery centre bore and nozzle 1 is coaxial is integrally formed
Upward interval of turning up is formed with nozzle water cooling jacket 103, and 103 sets of nozzle water cooling jacket is in vivo and on the outside of nozzle eddy flow cup 101
It is equipped with the cooling spacer 104 of double-deck nozzle water in interval between wall, is spaced in the cooling 104 innermost layer spacer of spacer of double-deck nozzle water
Side wall is close to the installation of 101 lateral wall tight fit of nozzle eddy flow cup；The cooling spacer 104 of double-deck nozzle water in interval and nozzle water are cooling
Housing 103 formed in the abundant water cooling of 1 axially outer side of nozzle into outgoing water cooling circuit.
On the basis of above-described embodiment, to effectively reduce local evaporation corrosion caused by copper electrode generates heat；It avoids welding simultaneously
It generates high desnity metal in the process to be mingled with, preferably: the electrode tip 2 is oxygen-free copper electrode tip, and the electrode tip 2 is electrically connected electricity
4 anode of source, 3 electric connection of power supply of electrode block, 4 cathode.It is electrically connected by the anti-convention polarity with power supply 4, avoids the loss of copper electrode
And corrosion.
Moreover, the abundant axial water-cooled effect of full immersed type is realized for the electrode tip 2 to cup-like structure, preferably: institute
State the integrally formed bottom end inner sidewall in 2 bottom end of electrode tip and 201 bottom end of electrode tip water cooling jacket and the cooling spacer of electrode tip water
The axial gap of reserved≤10mm between 202 axial Basolateral walls.
On this basis, to prevent plasma column 5 because beat occurs in the setting of guide ring 6, further: the air guide
It is equipped with circulation current stabilization cavity 602 between 6 lower section of ring and gallery centre bore 102, the circulation current stabilization cavity 602 is revolved in nozzle
101 cup body inside bottom of flow cup is arranged and is cylindrical cavity.The plasma column 5 for assembling eddying flow state enters long and narrow logical
Before road centre bore 102, abundant current stabilization is carried out to plasma gas, to guarantee welding quality.
To promote the sealing performance between nozzle 1 and the cooling spacer 104 of nozzle water, further: the nozzle eddy flow cup
Mating surface is equipped with the sealing ring being fitted in groove between 101 cup body lateral walls and the cooling 104 body inner sidewall of spacer of nozzle water
7.Embodiment as shown in Figure 1, the groove radially open system in 101 cup body lateral wall of nozzle eddy flow cup, and sealing ring 7 is fitted in recessed
In slot, reliably sealed off to being established between helium or argon working gas channel and the water cooling passageway of nozzle 1.
On the basis of above-described embodiment, to control using gas mass flow meter 9, stable plasma column gas source is maintained to supply
It gives, preferably: supplying argon gas between cooling 104 inner sidewall of spacer of the nozzle water and 201 lateral wall of electrode tip water cooling jacket
Or helium；It supplies and gas mass flow meter 9 is installed on the steam line of argon gas or helium.Using helium or argon gas as work gas
Body is able to satisfy the reliable welding demand of particulate metal.Working gas flow is controlled using gas mass flow meter 9, Ke Yiwei
The Plasma Welding arc column for keeping steady fixed.On the basis of above-described embodiment, for convenience of dismantling and replacing, and guarantee the leakproofness of welding gun
Can, further: the nozzle water cooling jacket 103 passes through 801 companion flange formula connection structure axis of sealing ring with welding gun housing 8
It is fixed with one to sealing is compressed.
About the omission of electric operation control circuit figure, power supply, gas mass flow meter, controller etc. are equipped with the external power supply for connecing alternating current
Circuit, power supply, gas mass flow meter, controller etc. are in current supply circuit, and are powered by external alternating current or DC battery jar.
Wherein, current supply circuit belongs to the prior art, therefore correlation circuit diagram is omitted.
By above description it can be found that: firstly, the present invention fall cup-like structure electrode tip and the axial full leaching of electrode tip
The improvement of formula water-cooling structure, can be to the abundant water cooling of plasma welding gun electrode head, and local evaporation caused by avoiding electrode tip from generating heat is rotten
Erosion extends electrode tip service life, provides reliable guarantee for improving production efficiency；It is logical that this programme back taper is formed with helix eddy flow
The cooling knot of 6 mounting structure of guide ring and guide ring in road 601,2 full immersed type water cooling of synergetic electrode head and 1 full immersed type water of nozzle
Structure collective effect, high-temperature plasma arc column energy density are more concentrated, and working gas degree of ionization is obviously improved；The spiral shell of guide ring 6
Spin line swirl channel 601 to the spiral eddy flow effect of contraction of plasma column, a length of twice of bore dia of collaboration hole it is long and narrow logical
Centre bore 102 structure in road improves collective effect, and plasma column is aobvious to the anti-bias pendulum linearity and energy density of central compressed
It writes and is promoted, especially meet the metal or alloy electrode such as titanium sponge, zirconium and press fast integral solder demand.
Secondly, the present invention uses oxygen-free copper electrode tip, synergetic electrode head and electrode block and power supply anti-convention to be conductively connected
Collective effect, not only avoid be easy to produce in lead electrode welding process high desnity metal be mingled with influence welding quality technology ask
Topic；And local evaporation corrosion caused by copper electrode generates heat is effectively prevented, therefore, the service life is longer for electrode tip, plasma
The Comprehensive service life of pipette tips effectively extends to 200 hours or more.
Furthermore the present invention fall plasma gas converted from the helix ring of eddy of conducting ring 6 it is higher long and narrow to the linearity
During 102 high-density plasma arc column of channel center hole, transition is carried out by circulation current stabilization cavity 602；Wherein, gallery
Centre bore 102 plays the role of mechanical compression to plasma column 5, makes 5 reduced cross-sectional area of plasma column；And circulation current stabilization cavity
602 pairs of 5 energy of plasma column play the role of transition current stabilization before further assembling, and prevent plasma column 5 from beat occur, wait from
It is more reliable and more stable that subarc welds quality.
Moreover, astern nozzle 1 and electrode tip 2 of the present invention is interior into outgoing full immersed type water-cooling structure, rises to electric arc
To the effect of restraining is heat-shrinked, air-flow realizes external cooling and constraint after the water cooling that plasma column 5 is constantly sent by outer portion near end,
5 conductive section of ion arc column is reduced, thermal pinch is generated, plasma column 5 is further compressed；At the same time, for etc.
5 electric current of ion arc column is smoothly received from the arc column center of the gallery centre bore 102 of nozzle 1 by providing support, conjunction with mechanical
Contracting and water cooling, which are restrained, shrinks collective effect, and arc current density further sharply increases.The band that the present invention falls in plasma column 5
Band electrochondria of the charged particle under 6 helix swirl channel 601 of the guide ring effect of back taper tangential flow guiding, in plasma column 5
Son movement oneself can generate magnetic field electromagnetic force, make to attract each other between charged particle, generate pinch effect, and then make
5 electric arc of ion arc column is further compressed.
The working principle of the invention: when work, oxygen-free copper electrode tip 2 connects the anode of power supply 4, and titanium sponge electrode block 3 connects electricity
The cathode in source 4 reduces local evaporation corrosion caused by oxygen-free copper electrode tip 2 generates heat；And positive electricity cartridge 2 and nozzle 1 are all made of entirely
Into outgoing abundant water-cooling structure in immersion, after working gas (argon gas or helium) ionization, in 1 cold wall of nozzle of abundant water cooling,
And to the continuous compression constraint in center under 2 electric power of the full immersed type electrode tip effect of sufficiently water cooling, and it is final, in the long and narrow of nozzle 1
The high-temperature plasma arc column 5 of energy density high concentration, and 5 high-speed punching of high-temperature plasma arc column are formed in channel center hole 102
Hitting on metal electrode block 3 melts metal rapidly, achievees the purpose that the reliable and stable welding of high quality.
It is mingled in conclusion the present invention avoids generation high desnity metal in welding process first；Secondly, plasma column
5 are heat-shrinked by mechanical compression, water cooling, electromagnetism is heat-shrinked three's synergistic effect, not only effectively increase the energy of plasma arc
Density, and the plasma welding arc that can keep steady fixed；Gas in arc column has obtained the ionization of height and has fully compressed, arc energy
Amount is by high concentration, and temperature is up to very high degree (about 1~20,000 degree)；Moreover, the use of plasma pipette tips is especially extended
Service life；After the effect of pinch effect and the thermal diffusion of internal arctube reach balance, the plasma arc that arc energy becomes stable is complete
The integral solder of the particulate metal such as fast is pressed at the metal or alloy electrode such as titanium sponge, zirconium, and welding arc quality is efficient, stablizes, is reliable.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Above-described embodiment, only presently preferred embodiments of the present invention, is not intended to limit the invention practical range, therefore all with this
The equivalence changes that content described in invention claim is done should all be included within scope of the invention as claimed.
Claims (7)
1. the plasma gun for connecting vacuum welding equipment has the electrode tip (2) installed in nozzle (1), and in nozzle (1)
The electrode block (3) of outer setting, electrode tip (2) and electrode block (3) electric connection of power supply (4) form plasma column (5), and feature exists
In: the electrode tip (2) is coaxially integrally formed interval of turning up upwards with electrode tip (2) rim of a cup bottom end and is formed in cup-like structure
Electrode tip water cooling jacket (201), the electrode tip water cooling jacket (201) set in vivo between electrode tip (2) lateral wall between
It is cooling spacer (202) every being coaxially provided with electrode tip water, the electrode tip water cooling spacer (202) and electrode tip water cooling jacket
(201) it is formed to the interior into outgoing water cooling circuit of electrode tip (2) axially outer side full immersed type water cooling；It is cooling to be close to electrode tip water
Housing (201) bottom cylindrical week side wall tight fit installs the guide ring (6) in rounding frustum shape, and guide ring (6) lateral wall
Insertion is mounted on nozzle eddy flow cup (101) inner sidewall in inverted cone cup body shape；Nozzle eddy flow cup (101) the inner sidewall position
Be integrally formed and be made in nozzle (1) top and nozzle (1), and nozzle eddy flow cup (101) inner sidewall and guide ring (6) lateral wall it
Between be formed with the swirl channel (601) of the helically wire shaped for making plasma column (5) interior charged particle from the conducting that tangentially becomes a mandarin；Institute
It states swirl channel (601) plasma gas passage external with water cooling jacket (201) set and is connected to composition for air circuit；The rotation
Circulation road (601) lower central is equipped with gallery centre bore (102), and gallery centre bore (102) length is that it is straight
And it is made with the molding of nozzle (1) portion integral twice of diameter；Gallery centre bore (102) bottom end and nozzle (1) are coaxial
It is integrally formed interval of turning up upwards and is formed with nozzle water cooling jacket (103), nozzle water cooling jacket (103) set is revolved with nozzle in vivo
It is cooling spacer (104) that it is equipped with double-deck nozzle water in interval between flow cup (101) lateral wall, is spaced the cooling spacer of double-deck nozzle water
(104) innermost layer spacer inner sidewall is close to the installation of nozzle eddy flow cup (101) lateral wall tight fit；Double-deck nozzle water in interval is cooling
Spacer (104) and nozzle water cooling jacket (103) are formed to the interior cooling into outgoing water of the abundant water cooling of nozzle (1) axially outer side
Circuit.
2. according to claim 1 for connecting the plasma gun of vacuum welding equipment, it is characterised in that: the electrode tip
It (2) is oxygen-free copper electrode tip, electrode tip (2) electric connection of power supply (4) anode, electrode block (3) electric connection of power supply (4) cathode.
3. according to claim 1 for connecting the plasma gun of vacuum welding equipment, it is characterised in that: the electrode tip
(2) bottom end and the integrally formed bottom end inner sidewall in electrode tip water cooling jacket (201) bottom end and electrode tip water are cooling spacer (202)
The axial gap of reserved≤10mm between axial Basolateral wall.
4. according to claim 1 or 2 or 3 for connecting the plasma gun of vacuum welding equipment, it is characterised in that: described to lead
Circulation current stabilization cavity (602), the circulation current stabilization cavity are equipped with below compression ring (6) between gallery centre bore (102)
(602) it is arranged in nozzle eddy flow cup (101) cup body inside bottom and is cylindrical cavity.
5. according to claim 1 for connecting the plasma gun of vacuum welding equipment, it is characterised in that: the nozzle eddy flow
Mating surface, which is equipped with, between cup (101) cup body lateral wall and cooling spacer (104) the body inner sidewall of nozzle water is fitted in groove
Sealing ring (7).
6. according to claim 5 for connecting the plasma gun of vacuum welding equipment, it is characterised in that: the nozzle water cooling
But argon gas or helium are supplied between spacer (104) inner sidewall and electrode tip water cooling jacket (201) lateral wall；Supply argon gas or helium
Gas mass flow meter (9) are installed on the steam line of gas.
7. according to claim 1 for connecting the plasma gun of vacuum welding equipment, it is characterised in that: the nozzle water cooling
But it is one that housing (103) and welding gun housing (8) are connected by the sealing of sealing ring (801) companion flange formula connection structure axial compression
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719646.8A CN110524096A (en) | 2019-08-06 | 2019-08-06 | For connecting the plasma gun of vacuum welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719646.8A CN110524096A (en) | 2019-08-06 | 2019-08-06 | For connecting the plasma gun of vacuum welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110524096A true CN110524096A (en) | 2019-12-03 |
Family
ID=68661480
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910719646.8A Pending CN110524096A (en) | 2019-08-06 | 2019-08-06 | For connecting the plasma gun of vacuum welding equipment |
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| Country | Link |
|---|---|
| CN (1) | CN110524096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799411A (en) * | 2022-05-13 | 2022-07-29 | 扬州英诺精密机械科技有限公司 | Thermal cutting device for automobile disassembly |
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