CN210475821U - Plasma cutting gun nozzle - Google Patents
Plasma cutting gun nozzle Download PDFInfo
- Publication number
- CN210475821U CN210475821U CN201920502551.6U CN201920502551U CN210475821U CN 210475821 U CN210475821 U CN 210475821U CN 201920502551 U CN201920502551 U CN 201920502551U CN 210475821 U CN210475821 U CN 210475821U
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- China
- Prior art keywords
- nozzle
- ceramic tube
- wall
- annular
- plasma cutting
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- 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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- 239000000919 ceramic Substances 0.000 claims abstract description 73
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model provides a plasma cutting gun nozzle, which comprises a nozzle body, a nozzle head and an inner ceramic tube, wherein the nozzle head is arranged on the nozzle body and communicated with the nozzle body, and the nozzle head is provided with a nozzle; also comprises an outer ceramic tube; the inner ceramic tube is movably arranged in the nozzle in a penetrating way; the outer ceramic tube is movably sleeved outside the nozzle head; the lower end part of the inner ceramic tube is provided with a circle of limiting parts which extend outwards horizontally and are annular; the lower end part of the outer ceramic tube is provided with a circle of annular pressing part which extends horizontally inwards, wherein the pressing part is pressed on the outer wall of the limiting part; and a locking assembly used for locking the outer ceramic tube is arranged between the nozzle body and the outer ceramic tube. The utility model discloses can effectively improve the inside and the outside heat resistance of mouth.
Description
Technical Field
The utility model relates to a plasma cutting field, concretely relates to plasma cutting rifle nozzle.
Background
A plasma cutting torch is a machine for processing a metal material by means of a plasma cutting technique. Plasma cutting is a process in which the heat of a high temperature plasma arc is used to partially or locally melt (and vaporize) the metal at the cut of a workpiece and the molten metal is removed by the momentum of the high speed plasma to form the cut. Wherein the cutting is mainly performed by means of a nozzle of a cutting gun. The cutting gun nozzle in the prior art mainly comprises a nozzle body and a nozzle head. Because the temperature of the nozzle head is very high when the nozzle works, the nozzle head is easy to burn or deform after long-term use, and high-temperature resistant treatment is generally carried out on the nozzle head.
For example, utility model patent No. CN202367339U discloses a high temperature resistant nozzle and a plasma cutting machine. The high-temperature-resistant nozzle comprises a nozzle body and a nozzle head connected with the nozzle body, wherein a nozzle is arranged on the nozzle head, and a ceramic pipe is arranged in the nozzle.
Although the scheme can carry out heat-resistant protection on the inner wall of the nozzle through the ceramic tube, in practical use, the problem that after the nozzle head is used for a long time, not only the inner wall of the nozzle is burnt, but also the outer wall of the nozzle head is burnt at high temperature is found; by adopting the scheme, only the inner wall of the nozzle can be protected, and the outer wall of the nozzle head cannot be protected; and the ceramic tube in the scheme is assembled in the nozzle in an interference fit mode, so that the ceramic tube is difficult to take down for replacement.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a plasma cutting torch nozzle.
In order to solve the technical problem, the technical scheme of the utility model is that:
a nozzle of a plasma cutting gun comprises a nozzle body, a nozzle head and an inner ceramic tube, wherein the nozzle head is arranged on the nozzle body and communicated with the nozzle body, and a nozzle opening is formed in the nozzle head; also comprises an outer ceramic tube; the inner ceramic tube is movably arranged in the nozzle in a penetrating way; the outer ceramic tube is movably sleeved outside the nozzle head; the lower end part of the inner ceramic tube is provided with a circle of limiting parts which extend outwards horizontally and are annular; the lower end part of the outer ceramic tube is provided with a circle of annular pressing part which extends horizontally inwards, wherein the pressing part is pressed on the outer wall of the limiting part; and a locking assembly used for locking the outer ceramic tube is arranged between the nozzle body and the outer ceramic tube.
Preferably, the inner side wall of the nozzle is provided with a slot for inserting the inner ceramic tube; and the lower end wall of the nozzle is provided with an annular clamping groove for embedding the limiting part, wherein the depth of the annular clamping groove is smaller than the thickness of the limiting part.
Preferably, a first sealing ring is arranged on the contact surface of the annular clamping groove and the limiting part; and a second sealing ring is arranged on the contact surface of the limiting part and the pressing part.
Preferably, the locking assembly comprises an annular fixing plate fixedly connected to the lower wall of the nozzle body, wherein the fixing plate is sleeved outside the nozzle head and is coaxially arranged with the nozzle head; and a circle of annular skirtboard extending outwards is arranged on the outer wall of the upper end of the outer ceramic tube, and the skirtboard is connected with the fixed plate through a fastening piece.
Preferably, a plurality of through holes are distributed on the surface of the apron board in a circular array; the lower wall of the fixing plate is provided with threaded holes which correspond to the through holes one by one; the locking piece is a locking bolt, wherein the inner end of the locking bolt penetrates through the through hole and then is in threaded connection with the threaded hole.
Compare prior art, the utility model has the advantages that:
1 the utility model discloses not only be equipped with interior ceramic pipe in the spout, still be equipped with outer ceramic pipe in the outside of mouth head to not only can improve the heat resistance of spout inner wall, can also improve the heat resistance of mouth head outer wall, so can protect the spout inner wall, can protect the outer wall of mouth head again, thereby improved the life of mouth head greatly.
2 the utility model provides an interior ceramic pipe is the activity and establishes in the spout, and outer ceramic pipe is the activity and establishes in the nozzle outside to through set up spacing portion on including ceramic pipe, set up the portion that compresses tightly on outer ceramic pipe, and set up locking Assembly, thereby make interior ceramic pipe and outer ceramic pipe homoenergetic pull down, so just can change when damage appears including ceramic pipe or outer ceramic pipe.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention;
figure 2 is an exploded view of the nozzle tip portion.
Reference numerals: 1. a mouth body; 2. a mouth head; 21. a spout; 22. a slot; 23. a card slot; 3. an inner ceramic tube; 31. a limiting part; 4. an outer ceramic tube; 41. a pressing part; 5. a locking assembly; 51. a fixing plate; 511. a threaded hole; 52. a skirt board; 521. a through hole; 53. locking the bolt; 6. a first seal ring; 7. and a second seal ring.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
Example (b):
referring to fig. 1 and 2, the present embodiment provides an electrode nozzle of a plasma cutting gun, including a nozzle body 1, a nozzle head 2, and an inner ceramic tube 3, wherein the nozzle head 2 is disposed on the nozzle body 1 and is communicated with the nozzle body 1, and a nozzle opening 21 is disposed on the nozzle head 2; also comprises an outer ceramic tube 4; the inner ceramic tube 3 is movably arranged in the nozzle 21 in a penetrating way; the outer ceramic tube 4 is movably sleeved outside the nozzle head 2; the lower end part of the inner ceramic tube 3 is provided with a ring of limiting parts 31 which extend outwards horizontally and are annular; the lower end part of the outer ceramic tube 4 is provided with a circle of annular pressing part 41 which extends horizontally and inwards, wherein the pressing part 41 is pressed on the outer wall of the limiting part 31; wherein the limiting part 31 is made of ceramic material which is integrally formed with the inner ceramic tube 3; the pressing portion 41 is made of a ceramic material integrally molded with the outer ceramic tube 4.
A locking component 5 for locking the outer ceramic tube 4 is arranged between the nozzle body 1 and the outer ceramic tube 4.
Through the arrangement, the inner ceramic tube 3 is arranged in the nozzle 21, so that the heat resistance of the inner wall of the nozzle 21 can be improved; the outer ceramic tube 4 is arranged outside the nozzle head 2, so that the heat resistance of the outer wall of the nozzle head 2 can be improved, the inner wall of the nozzle 21 can be protected, the outer wall of the nozzle head 2 can be protected, and the service life of the nozzle head 2 is greatly prolonged.
Moreover, in the present embodiment, the inner ceramic tube 3 is movably disposed in the nozzle 21, and the outer ceramic tube 4 is movably disposed outside the nozzle 2, so that the inner ceramic tube 3 and the outer ceramic tube 4 can be disassembled for replacement.
The inner side wall of the nozzle 21 is provided with a slot 22 for the inner ceramic tube 3 to be inserted; an annular clamping groove 23 used for being embedded into the limiting portion 31 is formed in the lower end wall of the nozzle 21, wherein the depth of the annular clamping groove 23 is smaller than the thickness of the limiting portion 31, so that the lower wall of the limiting portion 31 protrudes out of the clamping groove 23, and the pressing portion 41 can compress the lower wall.
In order to improve the sealing performance between the nozzle 21 and the inner ceramic tube 3, a first sealing ring 6 is arranged on the contact surface between the annular clamping groove 23 and the limiting part 31; the contact surface between the limiting part 31 and the pressing part 41 is provided with a second sealing ring 7.
The locking component 5 comprises an annular fixing plate 51 fixedly connected to the lower wall of the nozzle body 1, wherein the fixing plate 51 is sleeved outside the nozzle head 2 and is coaxially arranged with the nozzle head 2; the outer wall of the upper end of the outer ceramic tube 4 is provided with a ring-shaped skirt plate 52 extending outwards, wherein the skirt plate 52 is connected with the fixed plate 51 through a fastener.
A plurality of through holes 521 are distributed on the surface of the apron board 52 in a circular array; the lower wall of the fixing plate 51 is provided with threaded holes 511 corresponding to the through holes 521 one by one; the locking member is a locking bolt 53, wherein the inner end of the locking bolt 53 is threaded in the threaded hole 511 after passing through the through hole 521.
The implementation principle is as follows: when the inner ceramic tube 3 and the outer ceramic tube 4 are installed, the inner ceramic tube 3 is firstly inserted into the nozzle 21 along the slot 22 until the limiting part 31 butts against the annular clamping groove 23, then the outer ceramic tube 4 is sleeved on the nozzle 2 from the outside of the nozzle 2, the through hole 521 is aligned with the threaded hole 511 until the pressing part 41 is pressed on the limiting part 31, then the locking bolt 53 penetrates through the through hole 521 and is screwed into the threaded hole 511, so along with the rotation of the locking bolt 53, the locking bolt 53 can continuously advance into the threaded hole 511, so under the action of the locking bolt 53, the outer ceramic tube 4 is driven by the skirt board 52 to vertically move upwards, the pressing part 41 continuously presses the limiting part 31 until the locking bolt 53 is difficult to continuously rotate, and at the moment, the pressing part 41 can be firmly pressed on the limiting part 31, so that the installation of the inner ceramic tube 3 and the outer ceramic tube 4 is completed. When the ceramic tube needs to be disassembled, similarly, the locking bolt 53 only needs to be screwed off firstly, so that the limitation of the locking bolt 53 is avoided, and the outer ceramic tube 4 and the inner ceramic tube 3 can be sequentially pulled out.
The above is only the typical example of the utility model, in addition, the utility model can also have other multiple concrete implementation manners, and the technical scheme that all adopt equivalent replacement or equivalent transform to form all falls within the scope of the utility model.
Claims (5)
1. A plasma cutting gun nozzle comprises a nozzle body (1), a nozzle head (2) and an inner ceramic tube (3), wherein the nozzle head (2) is arranged on the nozzle body (1) and communicated with the nozzle body (1), and a nozzle opening (21) is arranged on the nozzle head (2); the method is characterized in that: also comprises an outer ceramic tube (4); the inner ceramic tube (3) is movably arranged in the nozzle (21) in a penetrating way; the outer ceramic tube (4) is movably sleeved outside the nozzle head (2); the lower end part of the inner ceramic tube (3) is provided with a ring of limiting parts (31) which extend outwards horizontally and are annular; the lower end part of the outer ceramic tube (4) is provided with a circle of pressing part (41) which horizontally extends inwards and is annular, wherein the pressing part (41) is pressed on the outer wall of the limiting part (31); and a locking assembly (5) for locking the outer ceramic tube (4) is arranged between the nozzle body (1) and the outer ceramic tube (4).
2. A plasma cutting torch nozzle as defined in claim 1, wherein: the inner side wall of the nozzle (21) is provided with a slot (22) for the inner ceramic tube (3) to be inserted; an annular clamping groove (23) used for being embedded into the limiting portion (31) is formed in the lower end wall of the nozzle (21), and the depth of the annular clamping groove (23) is smaller than the thickness of the limiting portion (31).
3. A plasma cutting torch nozzle as defined in claim 2, wherein: a first sealing ring (6) is arranged on the contact surface of the annular clamping groove (23) and the limiting part (31); and a second sealing ring (7) is arranged on the contact surface of the limiting part (31) and the pressing part (41).
4. A plasma cutting torch nozzle as defined in any one of claims 1-3, wherein: the locking assembly (5) comprises an annular fixing plate (51) fixedly connected to the lower wall of the nozzle body (1), wherein the fixing plate (51) is sleeved outside the nozzle head (2) and is coaxially arranged with the nozzle head (2); a circle of annular skirting board (52) extending outwards is arranged on the outer wall of the upper end of the outer ceramic tube (4), wherein the skirting board (52) is connected with the fixing plate (51) through a fastening piece.
5. A plasma cutting torch nozzle as defined in claim 4, wherein: a plurality of through holes (521) are distributed on the surface of the apron board (52) in a circular array; the lower wall of the fixing plate (51) is provided with threaded holes (511) which correspond to the through holes (521) one by one; the fastener is a locking bolt (53), wherein the inner end of the locking bolt (53) penetrates through the through hole (521) and then is in threaded connection with the threaded hole (511).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502551.6U CN210475821U (en) | 2019-04-15 | 2019-04-15 | Plasma cutting gun nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502551.6U CN210475821U (en) | 2019-04-15 | 2019-04-15 | Plasma cutting gun nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210475821U true CN210475821U (en) | 2020-05-08 |
Family
ID=70489203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920502551.6U Expired - Fee Related CN210475821U (en) | 2019-04-15 | 2019-04-15 | Plasma cutting gun nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210475821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11772188B1 (en) * | 2021-11-04 | 2023-10-03 | Lockheed Martin Corporation | Additive friction stir deposition system for refractory metals |
-
2019
- 2019-04-15 CN CN201920502551.6U patent/CN210475821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11772188B1 (en) * | 2021-11-04 | 2023-10-03 | Lockheed Martin Corporation | Additive friction stir deposition system for refractory metals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 |
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| CF01 | Termination of patent right due to non-payment of annual fee |