CN204381639U - A kind of minor diameter inner wall overlaying arc welding gun head - Google Patents
A kind of minor diameter inner wall overlaying arc welding gun head Download PDFInfo
- Publication number
- CN204381639U CN204381639U CN201420817217.7U CN201420817217U CN204381639U CN 204381639 U CN204381639 U CN 204381639U CN 201420817217 U CN201420817217 U CN 201420817217U CN 204381639 U CN204381639 U CN 204381639U
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- CN
- China
- Prior art keywords
- rifle head
- head body
- tungsten electrode
- gas shield
- shield cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of minor diameter inner wall overlaying arc welding gun head; it is made up of rifle head body, gland, tungsten electrode folder, tungsten electrode, gas shield cover, air inlet pipe, water inlet pipe and outlet pipe; feature is: on the outer peripheral face of tungsten electrode folder, have an annular guide channel; the center cavity inwall of rifle head body has a ring-shaped ventilation groove; the outer face of rifle head body evenly offers the venthole of the annular air channel of some connections; gas shield cover is threaded on the other end of rifle head body, forms one and protect air cavity between the porcelain arc cover body of gas shield cover and rifle head body.The utility model is reasonable in design, and the porcelain arc cover body of gas shield cover prevents high temperature scaling loss, long service life; Gas shield cover is threaded on rifle head body, conveniently can change, reduce production cost.
Description
Technical field
The utility model relates to the annex of soldering appliance, especially a kind of minor diameter inner wall overlaying arc welding gun head.
Background technology
We know, tubule inner-wall automatic built-up welding machine is the special welding machine carrying out built-up welding at steel cylinder, cone cylindrical and internal circular surfaces.Its principle is the welding method using argon arc welding to fill silk, and workpiece rotates in conjunction with welding torch straight line moving, to cover the facing surface of weldment; It is mainly made up of systems etc. such as frame, base, main transmission box, welding tractor, moving of car mechanisms, and welding tractor, with welding gun motion axially, coordinates the rotation of main shaft, can realize spirality built-up welding and the built-up welding of calibration straight line.Such as; a built-up welding welding gun is disclosed in " two water-cooled extra small bore inside pipe wall TIG built-up welding welding gun and overlaying method " disclosed in CN103692069A Chinese invention patent application description disclosed in 2 days April in 2014; the rifle head of this built-up welding welding gun is provided with annular water-cooling groove; annular water-cooling groove is connected with aqueduct; arc ions gas passage is connected with the tungsten electrode of rifle head, and arc protection gas passage communicates with the protection air cavity of rifle head.Through shunting after ion-gas enters rifle head, be evenly dispersed in around tungsten electrode, electric current conducts to tungsten electrode by coolant guide pipe, by the ion-gas ionization around tungsten electrode, and producing electric arc at tungsten electrode tip, protection gas to enter after rifle head through shunting, is evenly dispersed in around electric arc, electric arc and molten bath are protected, to eliminate the adverse effect to built-up welding such as swing, air-flow; Cooling water, at water-cooling groove internal circulation flow, ensures the good cooling to rifle head.The protection air cavity of the built-up welding arc welding gun head of this structure is
onegas shield cover is fixedly connected with rifle head body and forms; gas shield cover adopts metal material to be made; when continuous long working, preventing gas guard shield is heated and scaling loss for a long time, there is preventing gas guard shield fragile and cannot change, increase the deficiency of production cost.
Summary of the invention
To be fixedly connected with rifle head body to there is preventing gas guard shield easy burn-out and the deficiency cannot changing, increase production cost to overcome in prior art metal gas protective cover, the utility model provides the minor diameter inner wall overlaying arc welding gun head of a kind of reasonable in design, gas shield cover long service life, gas shield cover and the releasable connection of rifle head body.
The utility model solves the technical scheme that its technical problem adopts: a kind of minor diameter inner wall overlaying arc welding gun head, it is by rifle head body, gland, tungsten electrode presss from both sides, tungsten electrode, gas shield cover, air inlet pipe, water inlet pipe and outlet pipe composition, a center cavity is offered in rifle head body, described gland is threaded on rifle head body one end, described tungsten electrode clamp fit over rifle head body center cavity in and be fixed by gland, described tungsten electrode is fixed on tungsten electrode folder and goes up and stretch out the center cavity of rifle head body, described air inlet pipe is communicated with the center cavity of rifle head body, an annular cooling chamber is offered in rifle head body outside center cavity, described water inlet pipe, outlet pipe is connected with annular cooling chamber respectively, it is characterized in that: on the outer peripheral face of tungsten electrode folder, have an annular guide channel, the center cavity inwall of rifle head body has a ring-shaped ventilation groove be connected with center cavity, the outer face of rifle head body evenly offers the venthole of the annular air channel of some connections, described gas shield cover is made up of the porcelain arc cover body of a gradually closing and a threaded joints, this gas shield cover is threaded in through its threaded joints on the other end of rifle head body, form one between the porcelain arc cover body of gas shield cover and rifle head body and protect air cavity.
The utility model is that the protection air cavity between annular guide channel, the porcelain arc cover body of ring-shaped ventilation groove, some ventholes and gas protective cover on rifle head body center cavity inwall and rifle head body pressed from both sides by air inlet pipe, tungsten electrode forms protective gas passage jointly, protection gas is evenly dispersed in around tungsten electrode through this protective gas passage, and the electric arc produce tungsten electrode and molten bath are protected; Annular cooling chamber in water inlet pipe, rifle head body and outlet pipe form cooling-water duct, and cooling water is at this cooling-water duct internal circulation flow, and carry out good cooling to rifle head, the utility model is reasonable in design.The porcelain arc cover body of its gas shield cover effectively prevent high temperature scaling loss, long service life; Gas shield cover is threaded on rifle head body, achieves the releasable connection with rifle head body, conveniently can change, reduce production cost after gas shield cover scaling loss.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further.
Fig. 1 is the main sectional view of a kind of structure of the present utility model;
Fig. 2 is along the A-A line sectional view in 1;
Fig. 3 is along the B-B line sectional view in 1.
Mark in figure: 1. gas shield cover, 2. rifle head body, 201. center cavities, 202. annular cooling chambers, 203. ventholes; 3. air inlet pipe, 4. gland, 5. outlet pipe, 6. ring-shaped ventilation groove, 7. tungsten electrode folder; 701. annular guide channels, 8. tungsten electrode, 9. water inlet pipe, 10. protect air cavity.
Detailed description of the invention
In Fig. 1, Fig. 2, a kind of minor diameter inner wall overlaying arc welding gun head, it is made up of rifle head body 2, gland 4, tungsten electrode folder 7, tungsten electrode 8, gas shield cover 1, air inlet pipe 3, water inlet pipe 9 and outlet pipe 5.
As shown in Figure 1, Figure 2, Figure 3 shows, in rifle head body 2, offer a center cavity 201, tungsten electrode folder 7 is assemblied in the center cavity 201 of rifle head body 2, and gland 4 is threaded on rifle head body 2 one end, and tungsten electrode folder 7 is fixed, tungsten electrode 8 to be fixed on tungsten electrode folder 7 and to stretch out the center cavity 201 of rifle head body 2.
In Fig. 1, Fig. 2, offer an annular cooling chamber 202 in the rifle head body 2 outside center cavity 201, water inlet pipe 9, outlet pipe 5 are connected with annular cooling chamber 202 respectively.
In Fig. 1, Fig. 2, air inlet pipe 3 is communicated with the center cavity 201 of rifle head body 2.
As shown in Figure 1, the outer peripheral face of tungsten electrode folder 7 has an annular guide channel 701, center cavity 201 inwall of rifle head body 2 has a ring-shaped ventilation groove 6 be connected with center cavity 201.
In Fig. 1, Fig. 3, the outer face of rifle head body 2 evenly offers the venthole 203 of the annular air channel 6 of some connections.The number of venthole 203 is determined according to actual conditions.The present embodiment is 20.
In FIG; gas shield cover 1 by a gradually closing porcelain arc cover body and a threaded joints forms, as shown in Figure 1 and Figure 2; gas shield cover 1 is threaded on the other end of rifle head body 2 through its threaded joints, forms one and protect air cavity 10 between the porcelain arc cover body of gas shield cover 1 and rifle head body 2.The porcelain arc cover body of gas shield cover 1 effectively prevent high temperature scaling loss, extends the service life of gas shield cover 1; Gas shield cover 1 is threaded on rifle head body 2, achieves the releasable connection with rifle head body 2, conveniently can change, reduce production cost after gas shield cover 1 scaling loss.
The utility model forms cooling-water duct by the annular cooling chamber 202 in water inlet pipe 9, rifle head body 2 and outlet pipe 5, and cooling water, at this cooling-water duct internal circulation flow, carries out good cooling to rifle head; Meanwhile, electric current conducts to tungsten electrode 8 by cooling-water duct, produces electric arc, filler wire at tungsten electrode 8 tip.Protection air cavity 10 between the porcelain arc cover body of the annular guide channel 701 on air inlet pipe 3, tungsten electrode folder 7, ring-shaped ventilation groove 6, venthole 203 and gas protective cover 1 on rifle head body 2 center cavity 201 inwall and rifle head body 2 forms protective gas passage jointly; protection gas is evenly dispersed in around tungsten electrode 8 through this protective gas passage; the electric arc produce tungsten electrode 8 and molten bath are protected, to eliminate the adverse effect to built-up welding such as swing, air-flow.
Claims (1)
1. a minor diameter inner wall overlaying arc welding gun head, it is by rifle head body, gland, tungsten electrode presss from both sides, tungsten electrode, gas shield cover, air inlet pipe, water inlet pipe and outlet pipe composition, a center cavity is offered in rifle head body, described gland is threaded on rifle head body one end, described tungsten electrode clamp fit over rifle head body center cavity in and be fixed by gland, described tungsten electrode is fixed on tungsten electrode folder and goes up and stretch out the center cavity of rifle head body, described air inlet pipe is communicated with the center cavity of rifle head body, an annular cooling chamber is offered in rifle head body outside center cavity, described water inlet pipe, outlet pipe is connected with annular cooling chamber respectively, it is characterized in that: on the outer peripheral face of tungsten electrode folder, have an annular guide channel, the center cavity inwall of rifle head body has a ring-shaped ventilation groove be connected with center cavity, the outer face of rifle head body evenly offers the venthole of the annular air channel of some connections, described gas shield cover is made up of the porcelain arc cover body of a gradually closing and a threaded joints, this gas shield cover is threaded in through its threaded joints on the other end of rifle head body, form one between the porcelain arc cover body of gas shield cover and rifle head body and protect air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817217.7U CN204381639U (en) | 2014-12-22 | 2014-12-22 | A kind of minor diameter inner wall overlaying arc welding gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817217.7U CN204381639U (en) | 2014-12-22 | 2014-12-22 | A kind of minor diameter inner wall overlaying arc welding gun head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204381639U true CN204381639U (en) | 2015-06-10 |
Family
ID=53354394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817217.7U Expired - Fee Related CN204381639U (en) | 2014-12-22 | 2014-12-22 | A kind of minor diameter inner wall overlaying arc welding gun head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204381639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-12-22 CN CN201420817217.7U patent/CN204381639U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |