CN109848528A - A kind of fine cold compress welding gun of small-bore inner hole - Google Patents
A kind of fine cold compress welding gun of small-bore inner hole Download PDFInfo
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- CN109848528A CN109848528A CN201910247273.9A CN201910247273A CN109848528A CN 109848528 A CN109848528 A CN 109848528A CN 201910247273 A CN201910247273 A CN 201910247273A CN 109848528 A CN109848528 A CN 109848528A
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- high temperature
- temperature resistant
- gun
- small
- outer cylinder
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- 238000003466 welding Methods 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 26
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 15
- 239000010937 tungsten Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 210000000476 body water Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 12
- 238000010891 electric arc Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000002633 protecting effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- -1 protect electric arc Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The present invention provides a kind of fine cold compress welding guns of small-bore inner hole, including the body of a gun, pipette tips in front of the body of a gun and heated filament channel are set, the pipette tips include high temperature resistant outer cylinder, the high temperature resistant current divider of the high temperature resistant outer barrel and the tungsten electrode being arranged in inside the high temperature resistant current divider are set, high temperature resistant outer cylinder top is provided with sealing cover, the tungsten electrode tip is stretched out from the through-hole for being provided with the high temperature resistant shunt base, the lateral wall on high temperature resistant outer cylinder top is arranged with water-cooling bend, the corresponding air inlet in position is offered on the high temperature resistant outer cylinder and the side wall of high temperature resistant current divider middle and upper part;The heated filament channel is mounted on immediately below the body of a gun, and the outlet end in the heated filament channel extends to the bottom end of the high temperature resistant outer cylinder straightly.The fine cold compress welding gun of the small-bore inner hole has the advantages that design science, compact-sized, increasing material effect is good, welding efficiency is high.
Description
Technical field
The present invention relates to a kind of fine cold compress special welding machines, specifically, relate to a kind of fine cold compress of small-bore inner hole
Welding gun.
Background technique
It adopts and is needed in mining equipment using some dedicated three-level hydraulic cylinders, wherein the precision requirement of middle cylinder holes is higher,
It is easy to happen abrasion, burn into leakage after prolonged use, this just needs to repair it, and traditional mode is using viscous
Glue or electric welding technician's manual welding, cannot reach the requirement of bond strength, corrosion resistance, uniformity;Moreover, process when welding
Complexity, due to the diameter very little of middle cylinder holes, traditional welding gun can not be protruded into hole, it is therefore desirable to be passed through five steps, 1. first will
The hole boring of middle cylinder bottom valve is at the hole of diameter 120mm depth 40mm, and 2. vehicle mends product, and 3. vertical position welding is welded, and 4. groove milling, 5. coarse-fine vehicle is repaired
It is multiple.
Fine cold compress special welding machine is the increasing material repair apparatus that applicant is directed to that above-mentioned dedicated tubing specially designs, and is passed through
Digitize synchronous precision precise controlling, swinging technique utilization, the high-performance pulse low-temp low-pressure source of welding current and heater supply
It organically combines, meets the repairing needs of dedicated tubing, but different tubing and position feature difference, this, which just needs to use, meets it
The welding gun of feature, to guarantee welding effect.
In order to make pipette tips be able to bear the high temperature and biggish electric current of electric arc, such welding gun pipette tips and electrode wires are intended to bear
Higher temperature, therefore, it is necessary to add radiator structure Butt welding gun pipette tips and electrode wires to be cooled down in time, to guarantee welding gun just
Often work, meanwhile, in order to protect molten bath, it is also necessary to protection gas is provided, and existing welding gun pipette tips topology layout reasonability is poor,
Result in that existing welding gun pipette tips volume is larger, for the small-bore inner hole (aperture 45mm, depth 200mm) of small-bore,
Can not the portion of inserting into the inner welded, if by force reduce pipette tips size, be easy to cause heat dissipation not in time, protect gas air-flow not
Coordinate, is easy to happen failure;Therefore mostly use the mode of plating to be repaired before, increase material, it is undesirable that this mode increases material effect,
Durability is not strong.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, thus provide a kind of design science, it is compact-sized, increase material effect
The fine cold compress welding gun of the small-bore inner hole that fruit is good, welding efficiency is high.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of fine cold compress welding gun of small-bore inner hole,
Including the body of a gun, the pipette tips being arranged in front of the body of a gun and heated filament channel, the pipette tips include high temperature resistant outer cylinder, are arranged described
The high temperature resistant current divider of high temperature resistant outer barrel and the tungsten electrode being arranged in inside the high temperature resistant current divider, the high temperature resistant outer cylinder
Top is provided with sealing cover, and the tungsten electrode tip is stretched out from the through-hole for being provided with the high temperature resistant shunt base, the resistance to height
The lateral wall on warm outer cylinder top is arranged with water-cooling bend, the side wall of the high temperature resistant outer cylinder and high temperature resistant current divider middle and upper part
On offer the corresponding air inlet in position;The heated filament channel is mounted on immediately below the body of a gun, the outlet in the heated filament channel
Hold the bottom end for directly extending to the high temperature resistant outer cylinder level with both hands.
Based on above-mentioned, the body of a gun include gun body outer tube, the water cooling water inlet pipe for being disposed side by side on the gun body outer tube,
Water cooling outlet pipe and air inlet pipe, the pipe of the tube wall of the water cooling water inlet pipe, the tube wall of the water cooling outlet pipe and the air inlet pipe
Wall contacts two-by-two, and the both ends of the water-cooling bend are respectively communicated with the water cooling water inlet pipe and the water cooling outlet pipe, the air inlet
Pipe is connected to inside the high temperature resistant current divider after the air inlet.
Based on above-mentioned, the electrode wires for connecting the pipette tips are provided in the air inlet pipe.
Based on above-mentioned, the high temperature resistant current divider includes the arc tapered portion of lower section, is uniformly opened in the arc tapered portion
Equipped with multiple gas scattering holes.
Based on above-mentioned, high temperature resistant current divider middle and upper part and high temperature resistant outer cylinder middle and upper part interference fit.
Based on above-mentioned, high temperature resistant outer cylinder bottom end is provided with shunting net, described in the bottom end of the arc tapered portion is stretched out
Shunting net setting.
Based on above-mentioned, the tip of the tungsten electrode is smoothly arranged.
Based on above-mentioned, the body of a gun surface is arranged there are two support sleeve, and each support sleeve corresponds to the body of a gun and sets
It is equipped with fastening bolt, the heated filament channel is corresponded on each support sleeve and offers installation through-hole.
Based on above-mentioned, the installation through-hole shape is circle, and each support sleeve corresponds to the heated filament channel setting
There is a channel fastening bolt.
Based on above-mentioned, the sealing cover is screw.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, and specifically, the present invention exists
High temperature resistant current divider is arranged in the high temperature resistant outer barrel, keeps air-flow more uniform, and diffusing air current protects flame;In the resistance to height
Water-cooling bend described in the lateral wall winding on warm outer cylinder top, cools down the position for being easy to burn out in real time, by the air inlet
Be provided with immediately below the water-cooling bend, after protection gas enters the high temperature resistant current divider, air can be driven discharge, avoid it is residual
It stays, to improve protecting effect;The straight setting in outlet end in the heated filament channel avoids space hold caused by bending;
Entire welding gun structure rationally, compact layout, occupied space is controlled to minimum, can satisfy size in the small-bore of small-bore
The requirement in hole is welded to protrude into inside the inner hole of small-bore, increases material, compared with the mode that plating is repaired, is welded due to height
Temperature effect, the product durability and quality of reparation are greatly improved, and convey and pass through to the nozzle in the heated filament channel
The welding wire of preheating is crossed, the mobility after increasing welding wire melting improves flatness, with design science, compact-sized, increasing material effect
Fruit is good, welding efficiency is high.
The water cooling water inlet pipe, the water cooling outlet pipe and the air inlet pipe are arranged side by side, can to setting it is described into
The electrode wires of tracheae are cooled down in real time, avoid causing electrode wires to be blown because of high current.
High temperature resistant current divider middle and upper part and high temperature resistant outer cylinder middle and upper part interference fit, avoid inside and outside air inlet it
Between formed gas leakage gap, influence the stability of protection air-flow.
The shunting net carries out second diffluence to protection air-flow, keeps the air-flow sprayed more uniform.
The tip of the tungsten electrode is smoothly arranged, arc blow is avoided.
The setting of two support sleeves facilitates the direction for adjusting the heated filament channel and advance and retreat distance, to adapt to difference
The needs of cylinder bottom inner stopper welding.
Detailed description of the invention
Fig. 1 is the perspective view of the fine cold compress welding gun of small aperture inner hole of the present invention.
Fig. 2 is the side schematic view of the fine cold compress welding gun of small aperture inner hole of the present invention.
Fig. 3 is the structural schematic diagram of pipette tips in the present invention.
In figure: 1. pipette tips;2. gun body outer tube;3. water cooling water inlet pipe;4. water cooling outlet pipe;5. air inlet pipe;6. heat
Silk channel;7. support sleeve;8. fastening bolt;9. water-cooling bend;11. high temperature resistant outer cylinder;12. high temperature resistant current divider;13.
Tungsten electrode;14. shunting net;15. screw;121. arc tapered portion;122. gas scattering hole.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
As shown in Figure 1-3, a kind of fine cold compress welding gun of small-bore inner hole, including the body of a gun, is arranged in front of the body of a gun
Pipette tips 1 and heated filament channel 6, the pipette tips 1 include high temperature resistant outer cylinder 11, the high temperature resistant being arranged in inside the high temperature resistant outer cylinder 11
Current divider 12 and the tungsten electrode 13 being arranged in inside the high temperature resistant current divider 12, high temperature resistant outer cylinder 11 specifically can be using copper pipes etc.
Alloy copper product resistant to high temperature can be used in heat-resist material, the high temperature resistant current divider 12, and the high temperature resistant outer cylinder 11 pushes up
End is provided with sealing cover, dismounts for convenience, and the sealing cover is specially screw 15, and 13 tip of tungsten electrode is described from being provided with
The through-hole of 12 bottom of high temperature resistant current divider stretches out, and tungsten electrode 13 protects gas for dispersing for providing electric arc, high temperature resistant current divider 12,
Air-flow is uniformly dispersed in short distance, it is more preferable to arc protection effect.
The lateral wall on 11 top of high temperature resistant outer cylinder is arranged with water-cooling bend 9, and the main circuit of pipette tips 1 is arranged at
Portion, winding water-cooling bend 9, can radiate in time here, avoid burning out, the high temperature resistant outer cylinder 11 and the high temperature resistant current divider
The corresponding air inlet in position is offered on the side wall of 12 middle and upper parts, the air inlet hole arrangement is in the underface of water-cooling bend 9, a side
It is more compact on the position of face, on the other hand, after protection gas enters the high temperature resistant current divider, air can be driven to discharge, avoided
Residual;The body of a gun includes gun body outer tube 2, the water cooling water inlet pipe 3 being disposed side by side on inside the gun body outer tube 2, water cooling water outlet
Pipe 4 and air inlet pipe 5, the tube wall two of the tube wall of the water cooling water inlet pipe 3, the tube wall of the water cooling outlet pipe 4 and the air inlet pipe 5
Two contacts, the both ends of the water-cooling bend 9 are respectively communicated with the water cooling water inlet pipe 3 and the water cooling outlet pipe 4, the air inlet pipe
5 are connected to inside the high temperature resistant current divider 12 after the air inlet, are provided in the air inlet pipe 5 for connecting the rifle
First 1 electrode wires.Water cooling water inlet pipe 3, water cooling outlet pipe 4 and water-cooling bend 9 constitute water-cooling system, to pipette tips 1 and its electrode
Line is cooled down in time, avoids being burned during the work time, and air inlet pipe 5 conveys inert gas into pipette tips 1, protects electric arc.
The heated filament channel 6 is mounted on immediately below the body of a gun, and the outlet end in the heated filament channel 6 extends to institute straightly
The bottom end for stating high temperature resistant outer cylinder 1, space hold caused by avoiding the outlet end in heated filament channel 6 from being bent, and guarantee the size of pipette tips 1
In minimum state.
The high temperature resistant current divider 12 includes the arc tapered portion 121 of lower section, is uniformly opened up in the arc tapered portion 121
There are multiple gas scattering holes 122,11 bottom end of high temperature resistant outer cylinder is provided with shunting net 14, the arc tapered portion 121
Bottom end is stretched out the shunting net 14 and is arranged;After protection air-flow in air inlet pipe 5 enters pipette tips 1, by gas scattering hole 122 and divide
The second diffluence of drift net 14, to improve the uniformity of protection air-flow in short distance.
Since 1 size of pipette tips is smaller, the area ratio that air inlet occupies is relatively high, and protection gas is easy to shunt from high temperature resistant
Gap leakage between device 12 and high temperature resistant outer cylinder 11 causes the unstable of air-flow, in order to avoid protecting gas leakage, the resistance to height
Warm 12 middle and upper part of current divider and 11 middle and upper part of high temperature resistant outer cylinder interference fit, specifically, can be by high temperature resistant current divider 12
The wall thickness of 11 middle and upper part of middle and upper part and high temperature resistant outer cylinder is arranged thicker, and the stability of air-flow can be improved in this way.
In order to avoid there is blow phenomenon, the tip of the tungsten electrode 13 is smoothly arranged, and it is non-pointed.
So set, entire welding gun structure is reasonable, compact layout, size is set to reach 27-40mm, so as to meet aperture
The requirement of the small-bore inner hole of diameter is welded to protrude into inside the inner hole of small-bore, increases material.
The body of a gun surface is arranged there are two support sleeve 7, and each support sleeve 7 corresponds to the body of a gun and is provided with fastening
Bolt 8 corresponds to the heated filament channel 6 on each support sleeve 7 and offers installation through-hole;The installation through-hole shape is circle
Shape, each support sleeve 7 correspond to the heated filament channel 6 and are provided with a channel fastening bolt.As needed, rotational support set
7 and heated filament channel 6, it can adjust the direction in heated filament channel 6, push and pull support sleeve 7, can adjust the outlet end in the heated filament channel 6
Support sleeve 7 can be fixed in front-rear position, fastening bolt 8, and heated filament channel 6 can be fixed in channel fastening bolt, so as to
Capturing position.
When specifically used, firstly, pipette tips 1 are protruded into small-bore inner hole by the direction in fine tuning heated filament channel 6 and front-rear position
It is interior, it is directed at welding position;Then, from air inlet pipe 5 to pipette tips 1 convey inert gas, protect electric arc, metal drop, from water cooling into
Water pipe 4 inputs coolant liquid;Finally, startup power supply, the welding wire by preheating is sent out of heated filament channel 6, by the electric arc of tungsten electrode 3
High-temperature fusion is liquid, and pipette tips 1 are welded using welding method is swung, meanwhile, middle cylinder body rotation, until welding finishes.After tested,
The welding gun is ideal to the molding of small-bore inner hole, and unilateral welding increases material 1.5mm, flatness 0.30mm, internal diameter 45mm before welding,
Postwelding internal diameter 42mm, welding fabrication controllability are high.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof;To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced;Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of fine cold compress welding gun of small-bore inner hole, it is characterised in that: including the body of a gun, the pipette tips being arranged in front of the body of a gun
With heated filament channel, the pipette tips include high temperature resistant outer cylinder, the high temperature resistant current divider that the high temperature resistant outer barrel is arranged in and set
Set the tungsten electrode inside the high temperature resistant current divider, high temperature resistant outer cylinder top is provided with sealing cover, the tungsten electrode tip from
The through-hole for being provided with the high temperature resistant shunt base stretches out, and it is curved that the lateral wall on high temperature resistant outer cylinder top is arranged with water cooling
The corresponding air inlet in position is offered on the side wall of pipe, the high temperature resistant outer cylinder and high temperature resistant current divider middle and upper part;It is described
Heated filament channel is mounted on immediately below the body of a gun, and the outlet end in the heated filament channel extends to the high temperature resistant outer cylinder straightly
Bottom end.
2. inner hole fine cold compress welding gun in small-bore according to claim 1, it is characterised in that: the body of a gun includes outside gun body
Water cooling water inlet pipe, water cooling outlet pipe and the air inlet pipe managed, be disposed side by side on the gun body outer tube, the water cooling water inlet pipe
The tube wall of tube wall, the tube wall of the water cooling outlet pipe and the air inlet pipe contacts two-by-two, and the both ends of the water-cooling bend connect respectively
Lead to the water cooling water inlet pipe and the water cooling outlet pipe, the air inlet pipe is connected to the high temperature resistant shunting after passing through the air inlet
Inside device.
3. inner hole fine cold compress welding gun in small-bore according to claim 2, it is characterised in that: be provided in the air inlet pipe
For connecting the electrode wires of the pipette tips.
4. inner hole fine cold compress welding gun in small-bore according to claim 1-3, it is characterised in that: the high temperature resistant
Current divider includes the arc tapered portion of lower section, is uniformly provided with multiple gas scattering holes in the arc tapered portion.
5. inner hole fine cold compress welding gun in small-bore according to claim 4, it is characterised in that: in the high temperature resistant current divider
Top and high temperature resistant outer cylinder middle and upper part interference fit.
6. inner hole fine cold compress welding gun in small-bore according to claim 5, it is characterised in that: high temperature resistant outer cylinder bottom end
It is provided with shunting net, the shunting net setting is stretched out in the bottom end of the arc tapered portion.
7. inner hole fine cold compress welding gun in small-bore according to claim 4, it is characterised in that: the tip of the tungsten electrode is smooth
Setting.
8. according to claim 1, the fine cold compress welding gun of the described in any item small-bore inner holes in 2,3,5,6 or 7, it is characterised in that:
The body of a gun surface is arranged there are two support sleeve, and each support sleeve corresponds to the body of a gun and is provided with fastening bolt, each
The heated filament channel is corresponded on the support sleeve offers installation through-hole.
9. inner hole fine cold compress welding gun in small-bore according to claim 8, it is characterised in that: the installation through-hole shape is
Circle, each support sleeve correspond to the heated filament channel and are provided with a channel fastening bolt.
10. according to claim 1, the fine cold compress welding gun of the described in any item small-bore inner holes in 2,3,5,6,7 or 9, feature exist
In: the sealing cover is screw.
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CN201910247273.9A CN109848528A (en) | 2019-03-29 | 2019-03-29 | A kind of fine cold compress welding gun of small-bore inner hole |
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CN201910247273.9A CN109848528A (en) | 2019-03-29 | 2019-03-29 | A kind of fine cold compress welding gun of small-bore inner hole |
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CN201910247273.9A Pending CN109848528A (en) | 2019-03-29 | 2019-03-29 | A kind of fine cold compress welding gun of small-bore inner hole |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110434434A (en) * | 2019-08-31 | 2019-11-12 | 厦门曦哲贸易有限公司 | A kind of insulating ceramics shunting device of the porous shunting of axial direction |
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CN201755717U (en) * | 2010-08-20 | 2011-03-09 | 常州特尔玛机电实业有限公司 | Connector for TIG welding gun |
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CN104475943A (en) * | 2014-12-22 | 2015-04-01 | 威海石岛重工有限公司 | Small-diameter inner wall-surfacing torch head |
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CN209830561U (en) * | 2019-03-29 | 2019-12-24 | 郑州煤机综机设备有限公司 | Fine cold-compress welding gun for small-bore inner hole |
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2019
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US6066823A (en) * | 1998-09-15 | 2000-05-23 | Lageose; Michael M. | Semiautomatic tube welding apparatus |
JP2007030006A (en) * | 2005-07-28 | 2007-02-08 | Mitsubishi Heavy Ind Ltd | Welding torch, welding equipment and welding method |
CN101733522A (en) * | 2009-12-07 | 2010-06-16 | 昆山华恒工程技术中心有限公司 | Small-bore TIG (tungsten inert gas) surfacing torch |
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CN110434434A (en) * | 2019-08-31 | 2019-11-12 | 厦门曦哲贸易有限公司 | A kind of insulating ceramics shunting device of the porous shunting of axial direction |
CN110434434B (en) * | 2019-08-31 | 2021-11-05 | 嘉兴卓十生物科技有限公司 | Insulating ceramic shunt equipment of porous reposition of redundant personnel of axial |
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