CN108602153A - The weld assembly of reversible contact tip and reversible contact tip - Google Patents
The weld assembly of reversible contact tip and reversible contact tip Download PDFInfo
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- CN108602153A CN108602153A CN201780011302.0A CN201780011302A CN108602153A CN 108602153 A CN108602153 A CN 108602153A CN 201780011302 A CN201780011302 A CN 201780011302A CN 108602153 A CN108602153 A CN 108602153A
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Abstract
The weld assembly of reversible contact tip and reversible contact tip is disclosed.A kind of example welding contact tip includes the first axis end sections of the wire outlet of the endoporus with welding contact tip, is adjacent to the threaded middle section of first axis end sections and is adjacent to the second axial end portions of threaded middle section, wherein the threaded middle section includes the external screw thread being configured to the screw-internal thread fit of the gaseous diffuser of welding torch.
Description
Related application
Present patent application advocates entitled " reversible contact tip (Reversible Contact filed on 2 18th, 2016
Tip entitled " reversible contact tip filed in No. 62/296,958 U.S. Provisional Patent Application) " and on 2 16th, 2017
And weld assembly (the Reversible Contact Tips and Welding Assemblies for of reversible contact tip
Reversible Contact Tips) " No. 15/434,248 U.S. Patent application priority.No. 62/296,958
The full content of U.S. Provisional Patent Application and No. 15/434,248 U.S. Patent application is incorporated herein by reference.
Background technology
The disclosure relates in general to welding system, and more particularly, is related in the welding torch for welding system
Contact tip.
Welding is the technique become increasingly prevalent in various industry and application.In addition, as welding generally increases
Add, automatic Welding Process also just becomes to become more and more popular.As the automation in welding field increases, meet automated maintenance
The simple designs of target are more valuable.For example, the maintenance complexity with welding system reduces, automation complexity can also drop
It is low.
It therefore, can it is advantageous to provide a kind of mechanisms, the mechanism to make the replacement for the component frequently replaced in welding system
Become simple with fixation.This theme provides a kind of mechanism, for contacting replacement and fixation of the tip in welding system.
Invention content
Summarizing below has some embodiments for the range that matches with the theme initially advocated.These embodiments are not intended to limit
The range for making advocated theme, on the contrary, these embodiments are intended merely to provide the brief overview of the possibility form of this theme.It is practical
On, this theme can cover can be similar to or different from embodiment set forth below various forms.
In certain embodiments, a kind of welding contact tip includes：First axis end sections have welding contact tip
Endoporus the first welding wire opening；And second axial end portions, there is the second welding wire of the endoporus of welding contact tip to open
Mouthful, welding contact tip is reversible, so that when the second welding wire opening is the outlet opening of welding wire, the first welding wire opening is
The feed opening of welding wire, and when the first welding wire opening is the outlet opening of welding wire, the second welding wire opening is the input of welding wire
Opening.
Description of the drawings
When reading specific implementation mode with reference to attached drawing, these and other feature, aspect and the advantage of the disclosure will become
It is best understood from, wherein in whole attached drawings, same reference numerals indicate same section, in the accompanying drawings：
Fig. 1 is Metallic Inert Gas (MIG) welding system with power supply and wire-feed motor according to the aspect of the disclosure
Embodiment.
Fig. 2 is the side view according to the embodiment of the welding torch of the MIG welding systems of Fig. 1 of the aspect of the disclosure.
Fig. 3 is the cross-sectional perspective view according to a part for the welding torch of Fig. 2 of the aspect of the disclosure.
Fig. 4 is the cross-sectional side view according to the part of the welding torch of Fig. 3 of the aspect of the disclosure.
Fig. 5 is the exploded view according to the part of the welding torch of Fig. 3 of the aspect of the disclosure.
Fig. 6 is the exploded cross-sectional side view according to the part of the welding torch of Fig. 3 of the aspect of the disclosure.
Fig. 7 is the cross-sectional perspective view according to the another embodiment of the welding torch of Fig. 2 of the aspect of the disclosure.
Fig. 8 is the exploded view according to the part of the welding torch of Fig. 7 of the aspect of the disclosure.
Fig. 9 is the exploded cross-sectional side view according to the part of the welding torch of Fig. 7 of the aspect of the disclosure.
Attached drawing is not necessarily drawn to scale.In appropriate circumstances, similar or identical reference numeral is for indicating similar or phase
Same component.
Specific implementation mode
One or more embodiments of the disclosure are described below.In order to provide the concise description to these embodiments,
All features of actual implementation mode may not be described in the present specification.It will be appreciated that in any such actual implementation scheme
In exploitation, such as in any engineering or design object, numerous decisions specifically for embodiment are made to realize developer's
Specific objective, for example, meeting, system is related and the relevant constraints of business, and the constraints can be between embodiment
It is different.Also, it should be appreciated that such development may be complicated and time-consuming, but it still will can benefit from the disclosure
The regular works that those of ordinary skill is designed, constructs and manufactures.
Metallic Inert Gas (MIG) or melting pole gas shielded arc welding (GMAW) welding gun are fitted with thread head to receive
MIG welds consumptive material.Example consumptive material includes contact tip holder, contact tip, contact tip lid and gas nozzle and other.
Disclosed contact tip holder has screw thread to coordinate with the thread head of MIG welding guns at one end.Disclosed Contact welding
Mouth holder has taper seat area to coordinate with contact tip at one end.Tip holder, which also has, is adjacent to taper bearing
The threaded portion in region with the threaded portion of tip lid to coordinate.
In some instances, contact tip holder is configured to accommodate MIG welding gun liners, wherein MIG in MIG welding guns
Welding gun liner conveys welding wire.In some instances, MIG welding guns liner is aligned by contact tip holder with contact tip.One
In a little examples, welding protection gas is directed to the region under tip lid from MIG welding guns by contact tip holder.At some
In example, contact tip holder includes mechanical connection and the electrical connection between contact tip and MIG welding guns.In some examples
In, contact tip holder provides mechanical connection and the electrical connection of contact tip lid and MIG welding guns.In some instances, it connects
Touch the mechanical connection that tip holder includes gas nozzle and MIG welding guns.
In some instances, welding wire (for example, electrode wire) is provided and arrives weldpool/molten bath by contact tip.In some examples
In, welding current is transmitted to welding wire by contact tip.
In some instances, contact tip lid includes mechanical connection and the electrical connection between contact tip and MIG welding guns.
In some instances, contact tip lid protects contact tip to be influenced from welding surroundings.In some instances, contact tip lid will
Protective gas is led out in the endoporus of gas nozzle.
In some instances, gas nozzle includes the mechanical connection with MIG welding guns.In some instances, gas nozzle will
Protective gas is guided to weldpool/molten bath.In some instances, gas nozzle makes itself to insulate with welding current.
Disclosed example contact tip lid is symmetrical.For example, the two half-unit of contact tip can shape having the same
Shape and/or feature, and contact tip is enable to be attached to MIG welding guns on forward direction or opposite direction.
In some instances, by squeezing contact tip between tip holder and tip lid, contact tip is attached to
MIG welding guns.Because it is symmetrical to contact tip, any orientation allows to be operated.In some instances, contact tip is solid
Holder and contact tip lid are combined together via threaded connection.Tip holder has bearing with any with contact tip
End coordinates.Contacting tip lid, there is similar bearing to be coordinated with the either end with contact tip.As contact tip lid is by spiral shell
It is connected on contact tip holder, during contact tip is secured in place, and is electrically connected and is established.
Contact tip lid is configured so that contact tip lid seals up contact tip, and protects contact tip from welding
Environment influences.In some instances, it is to expose that contact tip, which only has end face,.Contact tip lid is configured so that in Contact welding
The air gap is produced between the inner surface of mouth lid and the outer surface for contacting tip.Contact tip lid can be also configured such that weldering
Protective gas is connect to flow in this air gap before leaving tip lid.
The symmetric design of contact tip allows to contact to be installed on a tip direction in office, this provides the extended tip service life.
As in welding process period, using contact tip, contact tip is easy on the end closest to welding arc mechanical quickly
Abrasion.This end of contact tip, which is most of welding current, is transmitted to the position of welding wire, and therefore tip from contact tip
The mechanical condition of endoporus at this location is crucial.At a time, tip hole reaches enough wear extenies on this end,
So that welding arc is adversely affected.In conventional design, contact tip is removed, abandons and is changed to new tip.
In contrast, disclosed example contact tip enables tip to be installed in either direction, so that abrasion can be removed in people
Tip, be turned to opposed orientation, and contact tip is re-attached to MIG welding guns.It is designed compared to traditional tip, this overturning
Process can extraly use contact tip.
Welding procedure generates high temperature near welding arc.Also, molten metal drop is (for example, spatter
Object) usually generated around welding arc, the exposure table of welding gun consumptive material (tip, nozzle and diffuser) is projected and adhered to outward
Face.Contact tip is largely fully exposed to the radiant heat and spatter object of welding surroundings in conventional tip design.Exposed
The high temperature that tip surface is subjected to leads to the softening (for example, annealing) of typical copper contact tip.This softening accelerates tip endoporus
Mechanical wear, this shortens the tip service life.It is entirely encapsulated in tip lid by the way that part of the tip other than end face will be contacted
Interior, tip operates at a lower temperature, and therefore, will not so soften soon.Similarly, protect tip surface from melting
Molten drop influence can help tip temperature being kept as it is relatively low.In any case, lower tip temperature can help to prolong
The long contact tip service life.
In some instances, contact tip by forcing most of flowing of the protective gas around the outer diameter of tip compared with
It is operated under low temperature.Theoretically, the protective gas of this process removes heat via forced convertion from tip.
In some instances, contact tip lid preferably resists spatter object.This can be helped prevent because of interrupted gas
Weld blowhole problem caused by body stream.Tip lid can be by material apart from copper of the attachment with preferable resistance to welding splash
Material (for example, brass or ceramics) is made.The part of the contact tip exposed to electric arc across contact tip lid can have anti-splashing
Object coating is further to resist splash.
In some instances, contact tip shape is simplified, this realizes the faster manufacturing cost processed and reduce.Pass through
Identical process operation is executed to the either end of tip, the quantity of different operation is reduced.The reduction of different process operations will process
The quantity of tool and/or station needed for during process is minimized.Process time and cost subtract relative to Conventional contact tip
It is few.
In some instances, conventional gas nozzle is compared, gas nozzle is maintained on MIG welding guns, this is improved with spray
Mouth wears the physical security of gas nozzle during use.The endoporus of typical sleeve type nozzle is easy to wear during use.
It wears the repetition installation due to nozzle and removes.As hole is worn, the frictional force applied via typical keeping method reduces,
Nozzle can be loosened or be fallen from MIG welding guns.Proposed design mitigates the abrasion on nozzle bore, and provide additional retentivity with
It helps nozzle keeping secured.
Although disclosing example taper, the taper of other sizes and/or angle can be used for contacting tip.In some examples
In, taper tip end, which can be replaced, extends out formula end.In some instances, taper tip end can be replaced flat end.
Some examples cover the negative thread with male thread and with cooperation on tip holder in tip.In some realities
In example, nozzle is attached via being threadedly coupled and contacting tip holder.
In some instances, between tip lid and tip holder connection have shoulder with the ladder in nozzle assembly
Structure engages.Nozzle assembly can have threaded portion, the threaded portion to be configured to the matching thread part with tip holder
Engagement.As nozzle assembly is bolted on tip holder, nozzle interior hierarchic structure engages with tip lid shoulder and will weldering
Mouth lid is pushed towards tip holder.When nozzle is fully assembled, contact tip be fixed on tip holder and tip lid it
Between, it is connect with the mechanical/electrical of MIG welding guns to generate contact tip.
Referring now to attached drawing, and with reference first to Fig. 1, welding system 10 is illustrated as comprising the power supply for being couple to wire-feed motor 14
12.In the illustrated embodiment, power supply 12 and wire-feed motor 14 separate, so that wire-feed motor 14 can be located at close to welding position
At a distance away with power supply 12.However, it should be understood that in some embodiments, wire-feed motor 14 can be with 12 1 bodily form of power supply
At.Power supply 12 weld power can be supplied to welding torch 16 via wire-feed motor 14 or power supply 12 can directly supply weld power
To welding torch 16.Wire-electrode 18 (for example, solid welding wire, flux-cored wire, coating welding wire) is supplied to welding torch 16 by wire-feed motor 14.It can
It is integral or gas (for example, CO2, argon gas) is supplied to welding torch 16 by the gas supply device 20 that is separated with power supply 12 with power supply 12.
Operator can pull the trigger 22 of welding torch 16 to initiate electric arc 24 between electrode 18 and workpiece 26.In some embodiments, it welds
Welding system 10 can be touched by automation interface (including (but not limited to) programmable logic controller (PLC) (PLC) or robot controller)
Hair.Welding system 10 is designed to provide welding wire (for example, electrode 18), weld power and protective gas to welding torch 16.Such as this
The technical staff in field is understood, and welding torch 16 can be many different types of welding torches, and can be conducive to use various combinations
Electrode 18 and gas.
Welding system 10 can receive data setting via operator interface 28 set on power supply 12 from operator.Behaviour
Work person's interface 28 can be incorporated into the front panel of power supply 12, and permissible selection such as welding procedure (for example, welding rod welding,
TIG weld, MIG welding), by the type of the electrode 18 used, voltage and current setting, transfer mode (for example, short circuit, pulse,
Injection, pulse) etc. settings.Specifically, welding system 10 allow with will pass through welding torch 16 by a variety of materials (for example, steel or
Aluminium) electrode 18 (for example, welding wire) that constitutes carries out MIG welding (for example, pulsed MIG welding).The welding setting is communicated
To the control circuit 30 in power supply 12.
The operation of control circuit 30 is to control the generation of weld power output, wherein weld power output is by electrical power conversion
Circuit 32 is applied to electrode 18 and it is expected to weld operation to execute.For example, in some embodiments, control circuit 30 may be adapted to adjust
Pulsed MIG welding schemes, wherein pulsed MIG welding schemes can have molten metal from welding wire to the weld seam formed
Melt many aspects of short circuit transfer and/or the injection transfer of weldpool.It during operation, can be by adjusting in electrode 18 and workpiece
The electric current of the electric arc 24 formed between 26 and the operating parameter of voltage pulse control these transfer modes.
Control circuit 30 is couple to power conversion circuit 32, and wherein power conversion circuit 32 supplies weld power (for example, arteries and veins
Rush waveform), which is applied to the electrode 18 at welding torch 16.Power conversion circuit 32 is couple to as shown in arrow 10
Electric power source.The electric power for being applied to power conversion circuit 32 may originate from power grid, but other electric power sources can also be used, for example, engine
Electric power caused by the generator of driving, battery, fuel cell or other alternative energy sources.The component of power conversion circuit 32 can wrap
Containing chopper, boost converter, buck converter, inverter etc..
Control circuit 30 controls the electric current and/or voltage for the weld power for being supplied to welding torch 16.Control circuit 30 can be at least
One or more sensors 36 for being based partially in wire-feed motor 14 or welding torch 16 and the electric current and/or voltage for monitoring electric arc 24.
In some embodiments, the processor 35 of control circuit 30 is at least partially based on the feedback from sensor 36 and determines and/control
Arc length or electrode development length processed.Arc length is defined herein as the length of the electric arc between electrode 18 and workpiece 26
Degree.Processor 35 is determined using the data (for example, algorithm, instruction, operating point) stored in memory 37 and/or control electricity
Arc length or electrode development length.The data stored in memory 37 can be received via operator interface 28, network connection,
Or it is preloaded before the assembling of control circuit 30.The operation of power supply 12 can be controlled under one or more of patterns,
For example, constant voltage (CV) shaping modes, wherein under constant voltage (CV) shaping modes, control circuit 30 is in the welding operation phase
Between change welding current while by weldingvoltage control be substantial constant.That is, welding current can at least portion
Divide and is based on weldingvoltage.As adjunctively or alternatively, power supply 12 can be controlled under current control mode, wherein in current control
Under pattern, welding current is controlled independently of weldingvoltage.In some embodiments, power supply 12 is controlled with constant
It is operated under electric current (CC) pattern, wherein under constant current (CC) pattern, control circuit 30 is changing weldering during welding operation
By welding current control it is substantial constant while connecing voltage.
The embodiment of the welding torch 16 of Fig. 2 pictorial images 1.As discussed about Fig. 1, welding torch 16 includes trigger 22, the trigger 22
For initiating to weld and electrode 18 being supplied to pad.Specifically, trigger 22 is arranged on handle 38.Welding operator exists
Handle 38 is held when executing welding.In first end 40, handle 38 is couple to cable pipe 42, wherein welding consumptive material is (for example, electrode, guarantor
Shield gas etc.) it is supplied to pad.Welding consumptive material usually travels across handle 38 and is left at second end 44, wherein second
End 44 is arranged in the at one end opposite with first end 40 on handle 38.
Welding torch 16 includes the neck 46 extended from the second end 44 of handle 38.Therefore, neck 46 be coupled in handle 38 with
Between welding tip 48.As it should be noted that when trigger 22 is pressed or activates, welding wire (for example, electrode 18) travels across
Cable pipe 42, handle 38, neck 46 and welding tip 48 so that welding wire from the end of welding tip 48 50 (for example, welding torch weld
Mouth) extend.In addition, as illustrated in Figure 2, handle 38 is fixed to neck 46 via fastener 52 and 54, and via fastening
Part 52 and 54 and be fixed to cable pipe 42.Illustrate welding tip 48, a wherein part for welding tip 48 be removed with show from
The electrode 18 that the contact tip 56 being arranged in welding tip 48 extends.
Fig. 3 is the cross-sectional perspective view of a part for the welding torch 16 of Fig. 2.As shown, contact tip holder 58 is contacting
Contact welding mouth 56 is received between the stage of replacement of tip 56, helps to contact tip 56 and the machinery of welding torch 16 couples, and contribute to
Contact tip 56 is electrically coupled to power supply 12, and following article is discussed in detail.
It includes two end sections 60a and 60b and middle section 62 to contact tip 56.Two end sections 60a and 60b
From middle section 62 towards the corresponding tapered variations of end surfaces 64a and 64b.Endoporus 66 extends the length of contact tip 56.Contact
Tip 56 is reversible, wherein any of two ends 60a and 60b of contact tip 56 can be towards will occur welding arc
Position positioning.In some instances, the reversible property of contact tip 56 extends contact tip 56 in the following way
Service life：Two ends 60a and 60b can be used before replacing or abandoning contact tip 56, rather than are being replaced or abandoned it
The preceding end that Conventional contact tip only can be used.
It includes bearing 68, wherein end sections 60a, 60b of 68 holding contact tip 56 of bearing to contact tip holder 58
In one.In illustrated example, bearing 68 holds end sections 60b.It includes external screw thread to contact tip holder 58 also
70, wherein external screw thread 70 and the internal thread 72 of contact tip lid 76 coordinates.It includes bearing 96, wherein bearing to contact tip lid 76 also
Another in end sections 60a, 60b of 96 holding contact tips 58.In illustrated example, contact tip lid 76 is held
Seat 96 holds end sections 60a.Bearing 96 has the taper of the taper bigger than end sections 60a, 60b.
Contact tip lid 76 can be screwed into or be spirally connected into the contact locking of tip holder 58 connection (for example, via screw thread 70,
72), so that contact tip 56 is assembled by compressing by is seated in the bearing for contacting tip lid 76 and contact tip holder 58
68, in 96 the two.Therefore, contact tip 56 is held securely by contact tip lid 76 and contact tip holder 58, so that
Wire-electrode 18 can be pushed through contact tip 56.
The outer surface of the inner surface and contact tip 56 that contact tip lid 76 forms annular region 98.Contact tip holder
58 comprising contribute to protective gas to welding position movement (for example, entered across welding torch 16 be formed in welding tip 48 and
Contact in the internal volume 100 between tip lid 56) gas ports.It can also includes compressible member to contact tip holder 58
74, for example, compressible circumferential direction ring.Welding tip 48 is pushed on axially on contact tip holder 58, as illustrated in arrow 80.
In certain embodiments, compressible member 74 can be the rubber or steel installed around the periphery of contact tip holder 58
Ring.In the relaxed state of compressible member 74, the outer diameter of compressible member 74 may be slightly larger than a part for welding tip 48
Internal diameter, when welding tip 48 is fixed to contact tip holder 58, welding tip 48 abuts compressible member 74.With weldering
It connects nozzle 48 to be pushed on contact tip holder 58,74 radial compression of compressible member, to allow welding tip 48 to pacify
Above compressible member 74 and it is completely installed on contact tip holder 58.As long as welding tip 48 is mounted on Contact welding
On mouth holder 58, compressible member 74 is just maintained in compressive state.In compressive state, compressible member 74 is continuously by diameter
It is applied to power on the endoporus of welding tip 48, as illustrated in arrow 78.
However, embodiment as described herein does not provide axial rub to prevent welding from spraying dependent on this radial load 78 merely
Mouth 48 slips away during use contacts tip holder 58.One of this situation the reason is that, depend solely on axial rub with will
Welding tip 48, which remains to contact tip holder 58, will be presented certain defects.For example, as time go on, frictional force may not
Reduce avoidablely, to allow welding tip 48 to be fallen from contact tip holder 58.More specifically, compressible member 74
It may as time go on be worn by the repetition installation/removal met with during normal use.In order to mitigate these defects,
As illustrated in fig. 3, in certain embodiments, the endoporus of welding tip 48 along itself and contact tip holder 58 bonding length
Without constant diameter, but include to allow compressible member 74 in addition to frictional force also to apply to axially retain power (such as arrow 80
It is illustrated) endoporus.More specifically, in certain embodiments, the endoporus of welding tip 48 includes with conical surface 84
Internal circumferential groove 82, wherein when welding tip 48 is installed on contact tip holder 58, compressible member 74 interfaces with
On conical surface 84.
Fig. 4 is the sectional side view of the part of the illustrated welding torches of Fig. 3 16.As shown, it is connect when welding tip 48 is fixed to
When touching tip holder 58, conical surface 84 and contact tip of the compression element 74 in the internal circumferential groove 82 of welding tip 48
It is radially compressed between the outer surface 86 of holder 58, wherein outer surface 86 is radially outward prolonged with the opposite sides from outer surface 86
The adjacent wall 90,92 stretched forms exterior circumferential groove 88 together.Therefore, compression element 74 generates radially outer power Fradial,
In radially outer power FradialIt generates and is at least partly retained on welding tip 48 suitably relative to contact tip holder 58
Axial friction F in positionfriction.In addition, when welding tip 48 is fixed to contact tip holder 58, compression element 74
In the conical surface 84 and the exterior circumferential groove 88 of contact tip holder 58 of the internal circumferential groove 82 of welding tip 48
It is axially compressed between first wall 90.Therefore, compression element 74 generates axial force Faxial, the axial force FaxialRelative to contact
Tip holder 58 at least partly by welding tip 48 hold it is in place in.
Example contact tip lid 76 also includes the gas for helping for gas to be transported to internal volume 100 from annular region 98
Port, gas can be discharged to welding position from internal volume 100 from gas nozzle 48.
Fig. 5 is the exploded view according to a part for the welding torch of Fig. 2 of the disclosure.Fig. 6 is the welding torch according to Fig. 2 of the disclosure
A part exploded cross-sectional side view.
Fig. 7 is the cross-sectional perspective view of the another embodiment of the welding torch 16 of Fig. 2.As illustrated in figure 7, contact tip fixing
Device 104 receives Contact welding mouth 106 between the stage of replacement of contact tip 106, contributes to the mechanical coupling for contacting tip 106 and welding torch 16
It connects, and helps to contact being electrically coupled to for tip 106 and power supply 12, as discussed in detail herein.
It includes two end sections 108a and 108b and middle section 110 to contact tip 106.With Fig. 3, Fig. 5 and Fig. 6
Two end sections 60a and 60b on the contrary, end sections 108a and 108b not from middle section 110 towards corresponding end surfaces 112a
It is tapered with 112b.In fact, end sections 108a and 108b is divided by corresponding shoulder 114a and 114b with middle section 110
It opens.Endoporus 116 extends the length of contact tip 106.Contact tip 106 is reversible, wherein two ends of contact tip 106
Any of 108a and 108b can be positioned towards the position that welding arc will occur.In some instances, tip 106 is contacted
Reversible property extends the service life of contact tip 106 in the following way：It can before replacing or abandoning contact tip 106
(for example, consumption) two ends 108aa and 108bb are used, rather than Conventional contact weldering only can be used before replacement or discarding
One end of mouth.
It includes bearing 118, the wherein end sections of 118 holding contact tip 106 of bearing to contact tip holder 104
One in 108a, 108b.In illustrated example, bearing 118 holds end sections 108b via opposite shoulder 120.
It includes that external screw thread 122, wherein external screw thread 122 and the internal thread 124 of nozzle 126 coordinate to contact tip holder 104 also.
With the example implementation above with reference to the contact welding nozzle component described in Fig. 3 on the contrary, contact tip lid 128 is as spray
The removable member of mouth 126 is included into nozzle 126.Example contact tip lid 128 is fixed via compressible elastomeric ring 130
Into nozzle 126.However, other attachments or fixing means can be used instead of compressible elastomeric ring 130.When nozzle 126 is by spiral shell
When being connected on contact tip holder 104, nozzle 126 fixes contact tip lid 128.
Contact tip lid 128 also and include bearing 132, the wherein end sections 108a of 132 holding contact tip 106 of bearing,
Another in 108b.In illustrated example, the bearing 132 of contact tip lid 132 holds end sections 108a.Bearing
132 contact the shoulder 114a of tip 106 with opposite shoulder 134 with contact.
When nozzle 126 be screwed into or be spirally connected into contact tip holder 104 locking connection (for example, via screw thread 122,
124) when, contact tip 106 is in place and in the bearing 118 of the bearing 132 of contact tip lid 128 and contact tip holder 104
Between compress.Therefore, contact tip 106 is held securely by contact tip lid 128 and contact tip holder 108, so that
Wire-electrode 18 can be pushed through contact tip 106.
The outer surface of the inner surface and contact tip 106 that contact tip lid 128 forms annular region 136.It is solid to contact tip
Holder 104 include contribute to protective gas be moved to welding position (for example, entered across welding torch 16 be formed in nozzle 126 and
Contact in the internal volume 100 between tip lid 128) gas ports 138.
Fig. 8 is the exploded view of the part of the welding torch of Fig. 7.Fig. 9 is the exploded cross-sectional side view of the part of the welding torch of Fig. 7.
Example contact tip lid 76,128 and contact tip 56,106 are configured so that reversible contact tip 56,106 is logical
Cross the end of the end surfaces 64a for contacting 76,128 exposure of tip lid, 64,112a, 112b substantially with reversible contact tip 76,128
Surface flushes.
Disclosed example contacts tip, contact tip lid, contact tip holder, nozzle and/or more generally welds
Torch component is configured to install contact tip, contact tip lid, contact tip holder and/or nozzle tool-freely and/or exempt from
Replace to tool contact tip, contact tip lid, contact tip holder and/or nozzle.As used herein, term " is exempted from
Tool " expression can be completed with hand and/or without using torque intensifying tools such as such as spanners.
Contact tip 56,106 can have external screw thread so that contact tip 56,106 can be solid in contact tip lid 76,128
The fixed contact tip holder 58,104 that arrives is fixed to the internal thread of contact tip lid 76,128 and/or is fixed to contact tip before
Holder 58,104 (for example, be fixed in the bearing of contact tip lid 76,128 and/or fixed to contact tip holder 58,
104)。
Example welding contacts tip：First axis end sections have the first weldering of the endoporus of welding contact tip
Silk opening；And second axial end portions, there is the second welding wire opening of the endoporus of welding contact tip, welding contact tip
It is reversible, so that when the second welding wire opening is the outlet opening of welding wire, the first welding wire opening is the feed opening of welding wire,
And when the first welding wire opening is the outlet opening of welding wire, the second welding wire opening is the feed opening of welding wire.
Some examples welding contact tip also includes between first axis end sections and the second axial end portions
Middle section.
In some instances, first axis end sections and the second axial end portions are tapers, and middle section
It is not tapered.
In some instances, first axis end sections and the second axial end portions are non-threadeds.
In some instances, the first end surfaces of welding contact tip and the second end surfaces include anti-splash coating.
In some instances, first axis end sections and the second axial end portions and non-tapered, and first axle
Include in the shoulder between first axis end sections and middle section to end sections.
In some instances, welding contact tip has mirror image in the plane both sides vertical with the welding contact endoporus of tip
Symmetry.Additionally or alternatively, welding contact tip can have rotational symmetry around the endoporus of contact tip.
In some instances, first axis end sections and the second axial end portions include being located in welding contact tip
End between external screw thread.External screw thread can be used for weld contact tip and consolidate fixed to contact tip lid and/or contact tip
Holder.
Example welding gun component includes：Reversible contact tip, including：First axis end sections and with first axis end
Partly the second opposite axial end portions, endoporus extend through between first axis end sections and the second axial end portions
Cross reversible contact tip；Tip holder is contacted, including is used to receive first axis end sections or the second axial end portions
In one the first bearing；And contact tip lid, including the second bearing, second bearing receiving first axis end sections
Or second in axial end portions another and when contacting tip lid and being connected to contact tip holder with contact tip
First bearing cooperation of holder and hold reversible contact tip securely.
In some instances, there is first axis end sections the first cone angle, the second axial end portions to have the first cone
Angle, and the bearing for contacting tip lid has the second cone angle, the second cone angle steeper than the first cone angle.
In some instances, contact tip lid holds reversible contact tip, so that first with contact tip lid contact
One in axial end portions or the second axial end portions has the end substantially flushed with the end surfaces of contact tip lid
Surface.
In some instances, the inner surface of contact tip lid has screw thread, the outer surface of contact tip holder to have screw thread, and
And the inner surface for contacting tip lid is connected with the outer surface of contact tip holder to hold reversible contact tip securely.
In some instances, reversible contact tip further includes being in first axis end sections and the second axial end portions
Between middle section, contact tip holder include for allow gas flow to it is reversible contact tip middle section and connect
The first gas port in the annular region between tip lid is touched, and it includes for allowing gas from annulus to contact tip lid
The second gas port of domain flowing.
In some instances, contact tip lid is configured so that via annular region from tip holder is contacted to second
The gas flowing of gas ports removes heat from reversible contact tip.
In some instances, contact tip lid be configured to protect with the first axis end sections of the second bearing seat contact or
At least part of second axial end portions.
In some instances, contact tip holder and contact tip lid are configured to replace or install tool-freely reversible
Contact tip.
In some instances, contact tip lid is configured to hold reversible contact tip so that being exposed by contact tip lid
And the end surfaces of the reversible contact tip of the opening with endoporus are substantially flushed with the end surfaces of reversible contact tip.
Although describing the method and/or system of the present invention, those skilled in the art with reference to certain embodiments
It should be understood that various changes can be carried out, and alternative equivalent, without departing from the method for the present invention and/or the range of system.This
Outside, many modifications can be carried out so that particular condition or material are adapted to the teaching of the disclosure, without departing from the scope of the present disclosure.Cause
This, it is desirable to method and/or system of the invention is not limited to disclosed particular embodiment, but the method for the present invention and/or
System will include all embodiments fallen within the scope of the appended claims.
Claims (20)
1. a kind of welding contacts tip, including：
First axis end sections, the first axis end sections have the first welding wire of the endoporus of the welding contact tip
Opening；And
Second axial end portions, second axial end portions have the second of the endoporus of the welding contact tip
Welding wire is open, and the welding contact tip is reversible, so that when second welding wire opening is the outlet opening of welding wire,
The first welding wire opening is the feed opening of the welding wire, and when first welding wire opening is the described defeated of the welding wire
When going out to be open, the second welding wire opening is the feed opening of the welding wire.
Further include in the first axis end sections and described the 2. welding according to claim 1 contacts tip
Middle section between two axial end portions.
3. welding according to claim 2 contacts tip, wherein the first axis end sections and described second are axially
End sections are tapers, and the middle section is not tapered.
4. welding according to claim 1 contacts tip, wherein the first axis end sections and described second are axially
End sections are non-threadeds.
5. welding according to claim 1 contacts tip, wherein the first end surfaces and second of the welding contact tip
End surfaces include anti-splash coating.
6. welding according to claim 1 contacts tip, wherein the first axis end sections and described second are axially
End sections are simultaneously non-tapered, and the first axis end sections include in the first axis end sections and centre
Shoulder between part.
7. welding according to claim 1 contacts tip, wherein welding contact tip with the welding Contact welding
The plane both sides that the endoporus of mouth is vertical have mirror symmetry.
8. welding according to claim 1 contacts tip, wherein the first axis end sections and described second are axially
End sections include the external screw thread being located between the end of the welding contact tip.
9. a kind of welding gun component, including：
Reversible contact tip, including first axis end sections and opposite with the first axis end sections second are axially
End sections, endoporus extend through described reversible between the first axis end sections and second axial end portions
Contact tip；
Tip holder is contacted, including is configured to receive the first axis end sections or second axial end portions
In one the first bearing；And
Tip lid is contacted, including the second bearing, second bearing are configured to receive the first axis end sections or institute
State another in the second axial end portions and the quilt when the contact tip lid is connected to the contact tip holder
Be configured to it is described contact tip holder the first bearing cooperation and hold the reversible contact tip securely.
10. welding gun component according to claim 9, wherein the first axis end sections have the first cone angle, it is described
Second axial end portions have first cone angle, and second bearing of the contact tip lid has the second cone
Angle, second cone angle are steeper than first cone angle.
11. welding gun component according to claim 9, wherein the Contact welding mouth lid is configured to hold the reversible contact
Tip, so that with the first axis end sections of the contact tip lid contact or second axial end portions
It is one have substantially with the end surfaces that flush of end surfaces of the contact tip lid.
12. welding gun component according to claim 9, wherein the inner surface of the Contact welding mouth lid has screw thread, the contact
There is a screw thread in the outer surface of tip holder, and the inner surface of the contact tip lid and the contact tip holder
The outer surface is configured to connection to hold the reversible contact tip securely.
13. welding gun component according to claim 9, wherein the reversible contact tip further includes being in the first axis
Middle section between end sections and second axial end portions, the contact tip holder includes for allowing gas
Body flow to first in the annular region between the middle section and the contact tip lid of the reversible contact tip
Gas ports, and the contact tip lid includes the second gas port for allowing gas to be flowed from the annular region.
14. welding gun component according to claim 13, wherein the Contact welding mouth lid is configured so that via the ring
Gas flowing of the shape region from the contact tip holder to the second gas port is removed from the reversible contact tip
Heat.
15. welding gun component according to claim 9 is held wherein the Contact welding mouth lid is configured to protect with described second
At least part of the tactile first axis end sections of seated connection or second axial end portions.
16. welding gun component according to claim 9, wherein the Contact welding mouth holder and the contact tip lid by with
It is set to and replaces and install the reversible contact tip tool-freely.
17. welding gun component according to claim 9, wherein the Contact welding mouth lid is configured to hold the reversible contact
Tip is so that the reversible contact tip contacts the exposure of tip lid and with the end surfaces base of the bore openings by described
It is flushed with the end surfaces of the reversible contact tip in sheet.
18. welding gun component according to claim 9, wherein the welding contact tip with the reversible contact tip
The vertical plane both sides of the endoporus have mirror symmetry.
19. welding gun component according to claim 9, further includes nozzle, the nozzle is configured to the contact tip
Lid is connected to the contact tip holder to exert a force towards the contact tip holder to the contact tip lid.
20. welding gun component according to claim 9, wherein the reversible contact tip includes shoulder, the shoulder by with
It is set to and the corresponding shoulder contact at least one of first bearing or second bearing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662296958P | 2016-02-18 | 2016-02-18 | |
| US62/296,958 | 2016-02-18 | ||
| PCT/US2017/018059 WO2017142992A1 (en) | 2016-02-18 | 2017-02-16 | Reversible contact tips and welding assemblies for reversible contact tips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108602153A true CN108602153A (en) | 2018-09-28 |
Family
ID=63609085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780011302.0A Pending CN108602153A (en) | 2016-02-18 | 2017-02-16 | The weld assembly of reversible contact tip and reversible contact tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108602153A (en) |
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| CN113874150A (en) * | 2019-04-24 | 2021-12-31 | 亚历山大·宾策尔焊接技术两合公司 | Welding device and method for operating a welding device |
| CN115229314A (en) * | 2022-07-29 | 2022-10-25 | 安徽中科大禹科技有限公司 | Dissimilar metal plate welding equipment |
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| CN115229314B (en) * | 2022-07-29 | 2023-07-04 | 安徽中科大禹科技有限公司 | Dissimilar metal plate welding equipment |
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Application publication date: 20180928 |