CN204711392U - A kind of self-action air plasma cutting torch - Google Patents
A kind of self-action air plasma cutting torch Download PDFInfo
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- CN204711392U CN204711392U CN201520399995.3U CN201520399995U CN204711392U CN 204711392 U CN204711392 U CN 204711392U CN 201520399995 U CN201520399995 U CN 201520399995U CN 204711392 U CN204711392 U CN 204711392U
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Abstract
The utility model provides a kind of self-action air plasma cutting torch, and comprise cylindrical shell, electrode, electrokinetic adsorption device, piston, metal derby, sealing ring and nozzle, it is characterized in that: cylindrical shell has body cavity, body cavity is divided into upper and lower body cavity; Electrode is located at hypocoelom top and can be moved up and down; Nozzle has root and mouth, and root abuts electrode, and mouth protrudes outside lower body accent; Piston is located at epicoeloma and is abutted with the electrode in hypocoelom; Epicoeloma wall is also provided with first, second limited block, and the first limited block to be positioned at below the second limited block and to have spacing; The upper surface of piston is fixed with metal derby, corresponding metal derby establishes electrokinetic adsorption device between accent to the second limited block of upper body, by previous constructions, solve striking energy coincidence and improve cutting accuracy technical problem, reached structure simple, be easy to operation, be also beneficial to the good result realizing automated job.
Description
Technical field
The utility model provides a kind of plasma cutting-torch, especially a kind of self-action air plasma cutting torch.
Background technology
At present, plasma arc cutting generally has two kinds of striking modes, is respectively contact and transferred arc formula arc maintenance formula.Namely wherein said contact is connected be attached to workpiece with the nozzle of electrode insulation on cutting power supply positive pole, then high-frequency high-voltage current is added on the electrode of joining power negative terminal, electrode is made to spray electric arc, electric arc forms plasma arc under voltage, air pressure, magnetic fields, plasma arc smooth combustion is maintained by big current, then slightly raise nozzle and avoid red-hot workpiece damage nozzle, start cutting.This cutting mode is applicable to the low power cutting machine of small area analysis more.Namely described transferred arc formula is connected to cutting power supply positive pole on nozzle by certain resistance and relay switch, first high-frequency high-voltage current is added between electrode and nozzle, electrode and nozzle is made to form electric arc owing to there being resistance current limliting, electric arc is less, is commonly called as little arc, then nozzle on the workpiece of direct joining power positive pole, the electric arc that between electrode and workpiece, just forming energy is larger, form plasma arc after electric arc is compressed, and nozzle and connecting of positive source are disconnected, start cutting.
Above two kinds of striking modes have a common ground: the air gap namely between electrode and nozzle with 1.5mm to 3mm, the DC voltage that plasma arc cutting power supply exports is less than 300 volts according to the unusual of output current, 300 volts can not produce electric arc on the air gap, then start cutting.High-frequency high-voltage current has comparatively intense radiation, easily produces interference to other electronic equipment.
In order to solve the problem, the direct current striking air plasma cutter cutting torch of prior art, as CN202527840U utility model patent comprises secured core, movable core, electrode and nozzle, movable core is arranged on below secured core, there is gap between the two, spring is provided with between movable core and secured core, secured core is wound with inductance coil, one end of inductance coil and Electrode connection, electrode is connected with movable core, nozzle cage is contained in the bottom of electrode and is connected on secured core, and nozzle is provided with insulation sleeve.Above-mentioned cutting torch electrode before connection cutting power supply contacts with nozzle, during striking, workpiece is connected with the positive pole of cutting power supply, when connect cutting power supply and nozzle and absorption surface time, cutting power supply output current makes movable core move in the magnetic field that inductance coil produces, movable core is with moving electrode to move simultaneously, there is the moment in gap in electrode and nozzle, small gap very easily produces electric arc, voltage simultaneously between electrode and nozzle is elevated to killer voltage by zero, and electric arc forms plasma arc under voltage, air pressure, magnetic fields.
Above-mentioned cutting torch does not need high-frequency high-voltage current to be loaded between electrode and nozzle when striking, the DC voltage only loading cutting power supply output can realize the electric arc that ignites, and avoids producing interference to other electronic equipment.In practical operation, the gap due to electrode and nozzle is fixing and cause striking energy inconsistent, thus cutting accuracy is reduced.
Summary of the invention
For solving the problems of the technologies described above, main purpose of the present utility model is to provide a kind of self-action air plasma cutting torch.
For reaching above-mentioned purpose, the technical scheme of the utility model application is: provide a kind of self-action air plasma cutting torch, it comprises cylindrical shell, electrode, electrokinetic adsorption device, piston, metal derby, sealing ring and nozzle, and wherein: cylindrical shell has body cavity, body cavity is divided into upper and lower body cavity; Electrode is located at hypocoelom top and can be moved up and down; Nozzle has root and mouth, and root abuts electrode, and mouth protrudes outside lower body accent; Piston is located at epicoeloma and is abutted with the electrode in hypocoelom; Epicoeloma wall is also provided with first, second limited block, and the first limited block to be positioned at below the second limited block and to have spacing; The upper surface of piston is fixed with metal derby, and corresponding metal derby establishes electrokinetic adsorption device between accent to the second limited block of upper body.
Preferred in the present embodiment, power switch and power supply that electrokinetic adsorption device comprises iron core, is wound in the magnetic induction loop of iron core, controls on/off.
Preferred in the present embodiment, piston in working order time, spacing by the first limited block.
Preferred in the present embodiment, piston is also provided with annular groove, in annular groove, be also embedded with sealing ring.
Preferred in the present embodiment, self-action air plasma cutting torch also comprises the wireway running through body cavity from cylindrical shell side, and wireway is arrange on the cylindrical shell of the below of the first limited block relative to the first limited block, and wireway communicates with hypocoelom simultaneously.
Compared with prior art, its useful effect is the utility model:
By adopting the gap between fixed electrode and nozzle, make striking energy coincidence, to reach the high object of cutting accuracy, structure is simple, easy to operate simultaneously, is also beneficial to and realizes automation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment.
Reference numeral comprises:
10-cylindrical shell, 11-hypocoelom, 12-epicoeloma, 13-first limited block, 14-second limited block, 20-electrode, 30-electrokinetic adsorption device, 31-iron core, 32-inductance coil, 33-power switch, 34-power supply, 40-piston, 50-metal derby, 60-sealing ring, 70-nozzle, 80-wireway.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the utility model is described in further detail.Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the technical solution of the utility model, and not should be understood to restriction of the present utility model.
In description of the present utility model, term " interior ", " outward ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, it is only the utility model instead of require that the utility model with specific azimuth configuration and operation, therefore must not should be understood to restriction of the present utility model for convenience of description.
Refer to shown in Fig. 1, the utility model provides a kind of self-action air plasma cutting torch, and it comprises cylindrical shell 10, insert in cylindrical shell 10 and along the electrode 20 of cylindrical shell 10 length direction movement and electrokinetic adsorption device 30 and the nozzle 70 that abuts against with electrode 20; The body cavity that cylindrical shell 10 has, body cavity is hypocoelom 11 and epicoeloma 12; Electrode 20 upper end to be plugged in hypocoelom 11 and to be fixedly connected with piston 40; The wall portion being positioned at epicoeloma 12 inner barrel 10 is respectively equipped with the first limited block 13 and the second limited block 14, first limited block 13 is positioned at below described second limited block 14, and has spacing therebetween; Piston 40 upper surface is fixed with metal derby 50, and metal derby 50 and electrokinetic adsorption device 30 produce magnetic force and attract each other.In the present embodiment, adopt the second limited block 14 can prevent from causing because electric current is excessive magnetic field absorption affinity increase and damage cutting torch, also can make to be formed between electrode 20 and nozzle 70 stable gap, thus make striking energy coincidence, reach higher cutting accuracy by this.In the present embodiment, electrokinetic adsorption device 30 comprises iron core 31, is wound in the magnetic induction loop 32 of iron core 31, controls power switch 33 and the power supply 34 of on/off.In the present embodiment, piston 40 in working order time, be subject to the first limited block 13 and limit, make it piston 40 and can not continue downward landing, piston 40 also offers annular groove, annular groove hold sealing ring 60 embed wherein.In the present embodiment, plasma cutting-torch also comprises wireway 80, and wireway 80 is arranged on the cylindrical shell 10 of the below of the first limited block, and communicates with hypocoelom 11.In the present embodiment, when starting striking, contacted with nozzle 70 by workpiece, power switch 33 switches on power 34, and power supply 34 outside forms loop, output current, current inductance coil 32(size of current equals given output current) produce magnetic field, make iron core 31 adsorbing metal block 50, thus drive piston 40 to move in body cavity, also be with moving electrode 20 to move simultaneously, started from scratch in the gap between electrode 20 and nozzle 70 and increase.Due to the spacing by the first limited block 13 and the second limited block 14, the stable gap of electrode and nozzle 70 is instantaneously made to produce electric arc.
Claims (5)
1. a self-action air plasma cutting torch, comprise cylindrical shell, electrode, electrokinetic adsorption device, piston, metal derby, sealing ring and nozzle, it is characterized in that: cylindrical shell has body cavity, body cavity is divided into upper and lower body cavity; Electrode is located at hypocoelom top and can be moved up and down; Nozzle has root and mouth, and root abuts electrode, and mouth protrudes outside lower body accent; Piston is located at epicoeloma and is abutted with the electrode in hypocoelom; Epicoeloma wall is also provided with first, second limited block, and the first limited block to be positioned at below the second limited block and to have spacing; The upper surface of piston is fixed with metal derby, and corresponding metal derby establishes electrokinetic adsorption device between accent to the second limited block of upper body.
2. self-action air plasma cutting torch according to claim 1, is characterized in that, power switch and power supply that electrokinetic adsorption device comprises iron core, is wound in the magnetic induction loop of iron core, controls on/off.
3. self-action air plasma cutting torch according to claim 1, is characterized in that, piston in working order time, spacing by the first limited block.
4. self-action air plasma cutting torch according to claim 1, it is characterized in that, piston is also provided with annular groove, in annular groove, be also embedded with sealing ring.
5. self-action air plasma cutting torch according to claim 1, is characterized in that, self-action air plasma cutting torch also comprises the wireway running through body cavity from cylindrical shell side, and the cylindrical shell that wireway is located at the below of the first limited block communicates with hypocoelom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520399995.3U CN204711392U (en) | 2015-06-11 | 2015-06-11 | A kind of self-action air plasma cutting torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520399995.3U CN204711392U (en) | 2015-06-11 | 2015-06-11 | A kind of self-action air plasma cutting torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204711392U true CN204711392U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520399995.3U Active CN204711392U (en) | 2015-06-11 | 2015-06-11 | A kind of self-action air plasma cutting torch |
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| CN (1) | CN204711392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453359A (en) * | 2018-01-30 | 2018-08-28 | 海宁杰盛新材料有限公司 | A kind of cutting machine for splash guard processing |
-
2015
- 2015-06-11 CN CN201520399995.3U patent/CN204711392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453359A (en) * | 2018-01-30 | 2018-08-28 | 海宁杰盛新材料有限公司 | A kind of cutting machine for splash guard processing |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 801, 901, 1001, workshop 3, fubilun Dingfeng science and Technology Park, west side of Songgang Avenue, Songgang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Mostar welding equipment Co., Ltd Address before: Two, building 41, building 67, 518000, mussel Road, Dongfang community, Songgang street, Baoan District, Guangdong, Shenzhen Patentee before: SHENZHEN SOLGOO TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 workshop B101 (first to fourth floors) of Chaojie Industrial Park, Danzi Middle Road, Jinsha community, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Mostar welding equipment Co., Ltd Address before: No. 801, 901, 1001, No. 3 workshop, fubilun Dingfeng science and Technology Park, west of Songgang Avenue, Songgang street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Mostar welding equipment Co., Ltd |