CN220782539U - Forced double-cooling water-cooling bent pipe and welding gun - Google Patents
Forced double-cooling water-cooling bent pipe and welding gun Download PDFInfo
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- CN220782539U CN220782539U CN202322445999.8U CN202322445999U CN220782539U CN 220782539 U CN220782539 U CN 220782539U CN 202322445999 U CN202322445999 U CN 202322445999U CN 220782539 U CN220782539 U CN 220782539U
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- water
- cooling
- tube core
- nozzle
- bin
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- 238000001816 cooling Methods 0.000 title claims abstract description 80
- 238000003466 welding Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 22
- 239000000498 cooling water Substances 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 238000010073 coating (rubber) Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 abstract 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 6
- 229920001568 phenolic resin Polymers 0.000 description 6
- 239000005011 phenolic resin Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a forced double-cooling water-cooling bent pipe and a welding gun, which belong to the technical field of welding, and structurally comprise a pipe core, a pipe core outer pipe sleeved on the outer side of the pipe core and a bent pipe packing layer sleeved on the outer side of the pipe core, wherein a water inlet channel and a water return channel are arranged between the pipe core and the pipe core outer pipe, a pipe core extending part extending to the outside of the pipe core outer pipe is arranged at the front end of the pipe core, a pipe core head is arranged on the outer side of the pipe core extending part, a first water cooling bin is formed between the inner wall of the pipe core head and the outer wall of the pipe core extending part, the first water cooling bin is communicated with the water inlet channel and the water return channel, a nozzle seat is arranged on the outer side of the pipe core head, a second water cooling bin is formed between the inner wall of the nozzle seat and the outer wall of the pipe core head, and the inner wall of the nozzle seat is provided with an insulating layer. Compared with the prior art, the forced double-cooling water-cooling bent pipe has excellent heat insulation and refrigeration effects and has good popularization and application values.
Description
Technical Field
The utility model relates to the technical field of welding, and particularly provides a forced double-cooling water-cooling bent pipe and a welding gun.
Background
Consumable electrode Gas Metal Arc Welding (GMAW) is one welding method commonly used in the industry today. The welding gun is connected with a power supply through a cable to supply current to generate an electric arc between the contact tip and the workpiece for welding. The welding gun gas circuit provides shielding gas to shield and protect the welding area and can take away part of heat, so that the temperature of the front end is reduced. However, for high-power and full-load welding guns, more water cooling is needed to meet the use requirements while gas cooling is needed.
The water-cooling welding gun has the advantages that when the welding wire at the front end of the welding gun is in fusion welding, the current is large, a large amount of heat is generated, the temperature of the front end of the bent pipe is high, and the front end of the welding gun can work normally only by cooling the water path. The efficiency of cooling the circulating water flow in the bent pipe is high and low, and the performance of the welding gun is directly influenced.
Disclosure of Invention
The utility model aims at the defects of the prior art and provides a forced double-cooling water-cooling bent pipe capable of greatly improving the cooling effect of a welding gun.
The technical scheme adopted for solving the technical problems is as follows: a forced double cooling water-cooling elbow comprises a tube core, an outer tube sleeved outside the tube core and an elbow wrapping layer sleeved outside the outer tube, wherein a water inlet channel and a water return channel are arranged between the tube core and the outer tube of the tube core, and the forced double cooling water-cooling elbow is characterized in that
The front end of the tube core is provided with a tube core extension part extending out of the tube core outer tube, the outer side of the tube core extension part is provided with a tube core head, a first water cooling bin is formed between the inner wall of the tube core head and the outer wall of the tube core extension part, the first water cooling bin is communicated with the water inlet channel and the water return channel,
the outside of the tube core head is provided with a nozzle seat, a second water cooling bin is formed between the inner wall of the nozzle seat and the outer wall of the tube core head, the second water cooling bin is communicated with the first water cooling bin through a water inlet and a water return port which are arranged on the side wall of the tube core head, and the inner wall of the nozzle seat is provided with an insulating layer.
Preferably, the forced double cooling water-cooled elbow pipe of the utility model further comprises a corner support sleeved at the rear end of the pipe core head, wherein the inner hole of the corner support is provided with a support insulating layer, the outer side surface of the corner support is fixedly connected with the rear end of the nozzle seat, and the rear end of the corner support is connected with the elbow pipe rubber coating layer.
Preferably, the supporting insulating layer is preferably an encapsulated phenolic resin layer.
Preferably, a corner insulator ring is provided between the front end of the inside of the nozzle carrier and the outside of the die head.
Preferably, the front end of the second water cooling bin is provided with a front end sealing element,
the front end sealing piece can be in interference sealing fit with the nozzle holder and the tube core head, and can also be in interference sealing fit with the nozzle holder, the tube core head and the corner insulating ring.
Preferably, the front end seal consists of a front end sealing ring (preferably an O-ring), a corner insulation collar, the front end sealing ring being arranged between the corner insulation collar and the corner insulation ring.
Preferably, the rear end of the second water cooling bin is provided with a rear end sealing piece, and the rear end sealing piece is in interference sealing fit with the nozzle seat and the tube core head. The back end seal is preferably an O-ring seal.
Preferably, at least two water inlet channels and at least two water return channels are arranged between the tube core and the tube core outer tube. It is particularly preferred to provide three water inlet channels and three water return channels.
Preferably, the nozzle holder is made of a metal material.
Preferably, the insulating layer of the inner wall of the nozzle holder may be a glue coating layer, a ceramic layer or the like, and particularly preferably, the ceramic insulating layer is sprayed on the inner wall of the nozzle holder.
Preferably, the water inlet and the water return port of the second water cooling bin are respectively arranged at the lower end and the upper end of the side wall of the tube core head, the water inlet is close to the front end of the second water cooling bin, and the water inlet is close to the rear end of the second water cooling bin.
A further technical task of the present utility model is to provide a welding gun.
The welding gun comprises a nozzle, a conductive nozzle seat and the forced double-cooling water-cooling bent pipe, wherein the nozzle is in taper fit with the nozzle seat, and the conductive nozzle is arranged at the front end of the forced double-cooling water-cooling bent pipe through the conductive nozzle seat.
Compared with the prior art, the forced double-cooling water-cooling bent pipe and the welding gun have the following outstanding beneficial effects:
the double-layer water cooling structure strengthens the performance of the forced cooling nozzle and the nozzle seat, and
the nozzle seat is made of metal material and is in taper fit with the nozzle, so that the contact area is larger, and the heat conduction performance is better; the forced cooling water in the water cooling bin circulates to ensure that heat generated by the welding gun during welding is not easy to accumulate at the nozzle seat and the nozzle, so that the heat is more easily taken away, and the temperature of the nozzle and the nozzle seat can be quickly cooled and reduced;
the front end of the first water cooling bin is very close to the contact tip seat (less than 10 mm), and water paths for water inflow and water return reach at least two water inflow channels and at least two water return channels, so that water flows are faster and guide is more stable, and the capability of forcedly cooling the contact tip seat and the contact tip is further enhanced;
and a ceramic spraying insulating layer is arranged in the inner cavity of the nozzle seat, and has excellent insulating property and good heat conducting property. The performance requirement of the welding gun in working can be met, the insulating performance of the welding gun and circulating cooling water can be kept, and good heat conducting performance can be kept, so that the circulating cooling water can carry away redundant heat;
(IV) the nozzle holder, after being fixed to the corner support, may have a certain positioning effect on the O-ring; the corner supports are made of phenolic resin with inner holes encapsulated, so that the corner supports can be insulated and heat-resistant, have enough supporting strength to fix the nozzle holder, and are matched with the ceramic insulating layer on the inner wall of the nozzle holder to form an insulating barrier, so that the nozzle holder and the bent pipe core are kept enough insulating, and circulating water can be skillfully sealed in the water cooling bin.
Drawings
FIG. 1 is a schematic diagram of a forced double cooling water-cooled elbow structure according to an embodiment;
FIG. 2 is a cross-sectional view of the water-cooled elbow A-A of FIG. 1;
FIG. 3 is a schematic diagram of a water-cooled welding gun according to a second embodiment;
FIG. 4 is an exploded view of the front end of the water-cooled welding gun of FIG. 3;
FIG. 5 is a schematic diagram of the cooling water flow of the water cooled welding torch of FIG. 3.
The reference numerals in the drawings denote:
1.1, a tube core, 1.2, an outer tube of the tube core, 1.3, an elbow covering layer, 1.4, a tube core head, 1.5, a water inlet channel, 1.6, a water return channel, 2, a nozzle seat, 2.1, a ceramic insulating layer, 3, a corner support, 3.1, a phenolic resin layer, 4, a first water cooling bin, 5, a second water cooling bin, 5.1, a water inlet, 5.2, a water return port, 6, a corner insulating ring, 7.1, a corner insulating retainer ring, 7.2, a front end O-shaped sealing ring, 8, a rear end O-shaped sealing ring, 9.1, a nozzle, 9.2, a nozzle locking ring, 10.1, a conducting nozzle, 10.2, a conducting nozzle seat, 10.3 and a conducting nozzle seat insulating ring.
Detailed Description
The utility model will now be further described with reference to the drawings and specific examples, which are not intended to limit the utility model.
In the present utility model, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generically to refer to the upper, lower, left, and right illustrated in the drawings; "inner and outer" means inner and outer relative to the contour of the respective parts themselves.
Embodiment one:
as shown in fig. 1 and 2, the forced double cooling water-cooled elbow of the present embodiment mainly comprises a die 1.1, a die outer tube 1.2, an elbow glue coating layer 1.3, a die head 1.4, a nozzle holder 2 and a corner support 3.
As shown in figure 2, the tube core outer tube 1.2 and the bent tube rubber coating layer 1.3 are sequentially sleeved on the outer side of the tube core 1.1 from inside to outside. Three water inlet channels 1.5 and three water return channels 1.6 are processed between the tube core outer tube 1.2 and the tube core 1.1.
The front end of the die 1.1 has a die extension that extends beyond the die outer tube 1.2. The rear end of the tube core head 1.4 is fixedly connected with the front end of the tube core outer tube 1.2, so that a first water cooling bin 4 is formed between the inner wall of the tube core head 1.4 and the outer wall of the tube core extension part. The first water cooling bin 4 is communicated with the water inlet channel 1.5 and the water return channel 1.6.
After the phenolic resin layer 3.1 is encapsulated in the inner hole of the corner support 3, the phenolic resin layer 3.1 is assembled to the rear end of the pipe core head 1.4 through threads in the inner hole of the phenolic resin layer, and then the bent pipe is encapsulated again, so that the bent pipe glue-encapsulating layer 1.3 is formed. The outer side of the corner support 3 is provided with nozzle holder mounting threads.
The nozzle holder 2 is fastened to the corner support 3 by means of an internally threaded connection at its rear end. A second water cooling bin 5 is formed between the inner wall of the nozzle seat 2 and the outer wall of the tube core head 1.4. The second water cooling bin 5 is communicated with the first water cooling bin 4 through a water inlet 5.1 and a water return port 5.2. The water inlet 5.1 and the water return port 5.2 are respectively positioned at the lower end and the upper end of the side wall of the tube core head 1.4, the water inlet 5.1 is close to the front end of the second water cooling bin 5, and the water return port 5.2 is close to the rear end of the second water cooling bin 5. The nozzle seat 2 is made of metal material, and the inner wall of the nozzle seat is sprayed with a ceramic insulating layer 2.1.
The front end of the second water cooled bin 5 is fitted with corner insulation rings 6, front end O-ring seals 7.2 and corner insulation collars 7.1. Corner insulating ring 6 fits between the front end of the inside of nozzle holder 2 and the outside of die head 1.4. The front end seal, consisting of the front end O-ring 7.2 and the corner insulation collar 7.1, is simultaneously in an interference sealing fit with the nozzle holder 2, the die head 1.4, the corner insulation ring 6.
The rear end of the second water cooling bin 5 is provided with a rear end O-shaped sealing ring 8, and the rear end O-shaped sealing ring 8 is in abutting sealing fit with the nozzle seat 2 and the tube core head 1.4.
Embodiment two:
as shown in fig. 3 and 4, the welding gun comprises a nozzle 9.1, a nozzle locking ring 9.2, a conducting nozzle 10.1, a conducting nozzle base 10.2 and the forced double cooling water-cooling bent pipe in the first embodiment.
The nozzle 9.1 is in taper fit with the nozzle holder 2 and is secured by a nozzle locking ring 9.2. The conducting nozzle 10.1 is arranged at the front end of the forced double-cooling water-cooling bent pipe through a conducting nozzle seat 10.2, and a conducting nozzle seat insulating ring 10.3 is arranged between the conducting nozzle seat 10.2 and the nozzle 9.1. The matching mode of the conducting nozzle 10.1, the conducting nozzle seat 10.2 and the tube core head 1.4 is the same as that of the conducting nozzle, the conducting nozzle seat and the end part of the water-cooling bent tube in the existing gas shielded welding gun.
As shown in fig. 5, the cooling water entering the first water cooling bin 4 through the water inlet channel enters the second water cooling bin 5 through the water inlet 5.1, absorbs the heat of the nozzle seat 2, returns to the first water cooling bin 4 through the water return port 5.2, and flows out through the water return channel 1.6.
The above embodiment is only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a forced double cooling water-cooling return bend, includes the die, cup joints the die outer tube in the die outside and cup joints the return bend rubber coating layer in the die outer tube outside, is provided with water inlet channel and return water channel, its characterized in that between die and the die outer tube:
the front end of the tube core is provided with a tube core extension part extending out of the tube core outer tube, the outer side of the tube core extension part is provided with a tube core head, a first water cooling bin is formed between the inner wall of the tube core head and the outer wall of the tube core extension part, the first water cooling bin is communicated with the water inlet channel and the water return channel,
the outside of the tube core head is provided with a nozzle seat, a second water cooling bin is formed between the inner wall of the nozzle seat and the outer wall of the tube core head, the second water cooling bin is communicated with the first water cooling bin through a water inlet and a water return port which are arranged on the side wall of the tube core head, and the inner wall of the nozzle seat is provided with an insulating layer.
2. The forced double cooling water cooled elbow according to claim 1, further comprising a corner support sleeved at the rear end of the die head, the corner support inner bore being provided with a support insulation layer, the corner support outer side being fixedly connected with the nozzle holder rear end, the corner support rear end being connected with the elbow encapsulation layer.
3. A forced double cooling water cooled elbow according to claim 1 or 2, characterised in that a corner insulation ring is provided between the front end of the inside of the nozzle holder and the outside of the die head.
4. The forced double cooling water-cooled elbow according to claim 3, wherein the front end of the second water-cooled bin is provided with a front end seal,
the front end sealing piece is in abutting sealing fit with the nozzle seat and the tube core head,
or,
the front end sealing piece is in interference sealing fit with the nozzle holder, the tube core head and the corner insulating ring.
5. The forced double cooling water cooled elbow according to claim 4, wherein said front end seal consists of a front end sealing ring, a corner insulation collar, the front end sealing ring being arranged between the corner insulation collar and the corner insulation ring.
6. A forced double cooling water cooled elbow according to claim 3, wherein the rear end of the second water cooled bin is provided with a rear end seal in interference sealing engagement with the nozzle holder and the die head.
7. The forced double cooling water cooled elbow according to claim 3, wherein at least two water inlet channels and at least two water return channels are provided between the die and the die outer tube.
8. A forced double cooling water cooled elbow according to claim 3, wherein the nozzle holder is of metallic material and the inner wall of the nozzle holder is provided with a ceramic insulating layer.
9. The forced double cooling water-cooled elbow according to claim 3, wherein the water inlet and the water return port of the second water-cooled bin are respectively arranged at the lower end and the upper end of the side wall of the die head, the water inlet is close to the front end of the second water-cooled bin, and the water inlet is close to the rear end of the second water-cooled bin.
10. A welding gun comprising a nozzle, a contact tip holder, and the forced double cooling water-cooled elbow according to any one of claims 1-9,
the nozzle is in taper fit with the nozzle seat,
the conducting nozzle is arranged at the front end of the forced double-cooling water-cooling bent pipe through the conducting nozzle seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322445999.8U CN220782539U (en) | 2023-09-09 | 2023-09-09 | Forced double-cooling water-cooling bent pipe and welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322445999.8U CN220782539U (en) | 2023-09-09 | 2023-09-09 | Forced double-cooling water-cooling bent pipe and welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220782539U true CN220782539U (en) | 2024-04-16 |
Family
ID=90636897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322445999.8U Active CN220782539U (en) | 2023-09-09 | 2023-09-09 | Forced double-cooling water-cooling bent pipe and welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220782539U (en) |
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2023
- 2023-09-09 CN CN202322445999.8U patent/CN220782539U/en active Active
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