CN104014918B - The non-high frequency plasma cutting gun of middle striking - Google Patents
The non-high frequency plasma cutting gun of middle striking Download PDFInfo
- Publication number
- CN104014918B CN104014918B CN201410212439.0A CN201410212439A CN104014918B CN 104014918 B CN104014918 B CN 104014918B CN 201410212439 A CN201410212439 A CN 201410212439A CN 104014918 B CN104014918 B CN 104014918B
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- China
- Prior art keywords
- striking
- main body
- head main
- arc electrode
- rifle head
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- 238000005520 cutting process Methods 0.000 title claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005194 fractionation Methods 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
- 238000003672 processing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
Abstract
The present invention relates to the non-high frequency plasma cutting gun of striking in one, it comprises handle, rifle head main body, middle arc electrode, middle striking nozzle, protective sleeve and the driver part that in driving, arc electrode is separated with middle striking nozzle, described rifle head main body is fixedly connected with handle, the top of described middle arc electrode is provided with the cylindricality connector be connected with described driver part, the middle part of middle arc electrode is provided with lug boss, lug boss is columniform convex, the below of lug boss is provided with the striking portion of the taper surface of reduced diameter, taper wall is provided with in the middle part of the cavity of middle striking nozzle interior, this taper wall is corresponding with the taper surface size in striking portion.Middle striking of the present invention non-high frequency plasma cutting gun adopts the striking mode of non-high frequency, interference can not be caused to the equipment of periphery, striking position is arranged in the middle part of middle arc electrode, extend the service life of middle arc electrode and middle striking nozzle, simultaneously, optimize cooling system, enhance the overall cooling performance of burning torch, extend service life.
Description
Technical field
The present invention relates to the non-high frequency plasma cutting gun of striking in welding gun field, particularly one.
Background technology
Plasma cutting gun cutting is the metal local melting utilizing the heat of high-temperature plasma electric arc to make workpiece incision, and borrows the isoionic foundation of high speed to discharge motlten metal to form a kind of processing method of otch.Time the advantage of plasma cut is cutting thickness little metal, plasma cutting speeds is opened, and cut surface is bright and clean, and thermal deformation is little, does not almost have heat affected area.Because traditional high-frequency arc strike technology can produce serious electromagnetic interference, affect the normal operation of peripheral facility, therefore have developed the plasma cutting gun of non-high frequency.The electrode of existing plasma cutting gun and the contacting ignition arc position of nozzle are positioned at the lower end of electrode, when plasma cutting gun uses, striking position localized hyperthermia, the striking position on electrode and nozzle is easy to damage, cause electrode and nozzle short for service life, replacement frequency is high.
Summary of the invention
The object of the invention is to the problem of easily damaging for electrode and the nozzle of existing plasma cutting gun pointed in background technology, a kind of non-high frequency plasma cutting gun of middle striking that can solve foregoing problems is provided.
The technical scheme realizing goal of the invention of the present invention is as follows:
The non-high frequency plasma cutting gun of striking in one, it comprises handle, rifle head main body, middle arc electrode, middle striking nozzle, protective sleeve and the driver part that in driving, arc electrode is separated with middle striking nozzle, described rifle head main body is fixedly connected with handle, the top of described middle arc electrode is provided with the cylindricality connector be connected with described driver part, the middle part of middle arc electrode is provided with lug boss, lug boss is columniform convex, the below of lug boss is provided with the striking portion of the taper surface of reduced diameter, the middle part of middle arc electrode and bottom extend in the cavity of middle striking nozzle interior, the lower end of middle striking nozzle is provided with out arc hole, taper wall is provided with in the middle part of the cavity of middle striking nozzle interior, this taper wall is corresponding with the taper surface size in striking portion, ring of eddy is connected with at the top of middle striking nozzle, the top of ring of eddy is connected with rifle head main body, described protective sleeve be arranged on middle striking nozzle and rifle head main body outside, protective sleeve top is connected with rifle head main body, the position being arranged in the bottom of striking nozzle in the lower end of protective sleeve is provided with protection cotton up to cover.
For the ease of arc electrode and middle striking nozzle in controlling being separated and closed, described driver part comprises piston and piston rod, the lower end of piston rod is fixedly connected with middle arc electrode, piston is fixed on the piston rod and is arranged in the top of arc electrode, the top being positioned at piston is on the piston rod provided with back-moving spring, the top being positioned at back-moving spring in rifle head main body inside is provided with limiting section, piston rod inner is provided with gas passage, the top of piston rod is connected with airway, piston rod wall is provided with pore between piston and middle arc electrode, on rifle head main body wall, the position corresponding with this pore position is provided with passage.
In order to strengthen the Product Precision of rifle head main body, strengthen cooling effect, extend life of product, described rifle head main body comprises piston tube, tube connector and is connected to the adapter sleeve at tube connector lower ending opening place, tube connector is connected to the middle and lower part of piston tube, and adapter sleeve is connected to the bottom of tube connector.
In order to ensure the sealing between adapter sleeve and piston rod, be provided with seal groove in the middle part of described adapter sleeve inwall, arrange sealing ring in seal groove, piston rod passes from sealing circle, makes to keep air-tightness between adapter sleeve and piston rod.
Limiting section described in such scheme is the step surface of the bottom being arranged on piston tube.
Passage described in such scheme is arranged on the tube wall of described tube connector.
In order to reduce the resistance of piston stroking upward; be convenient to arc electrode in piston driving be separated with middle striking nozzle; the wall of described rifle head main body is positioned at above piston and is provided with leakage hole, described leakage hole is arranged on the tube wall of tube connector, and is positioned at the top of described protective sleeve.
In order to strengthen the air-tightness of protective sleeve and rifle head main body connecting portion; in the below of the connecting portion of described protective sleeve and rifle head main body; sealing ring is provided with between protective sleeve and rifle head main body; cooling down is carried out for the ease of centering striking nozzle; protective sleeve inside is provided with the flange collar of striking nozzle in support; this flange collar is provided with cooled gas path, and the below of protective sleeve is provided with refrigerating gas outlet.
For the ease of the placement of burning torch, the below of described protective sleeve is provided with turning rolls, turning rolls is provided with the support member corresponding with protective sleeve shape.
The advantage of middle striking of the present invention non-high frequency plasma cutting gun is: the striking mode 1) adopting non-high frequency, can not cause interference, can guarantee the normal operation of peripheral facilities to the equipment of periphery; 2) in, between arc electrode and middle striking nozzle, striking position is arranged in the middle part of arc electrode, and contact area is large, localized hyperthermia can be avoided to cause the damage of middle arc electrode and middle striking nozzle, the service life of arc electrode and middle striking nozzle in prolongation; 3) rifle head main body structure simplifies, and production assembling is all fairly simple, effectively can improve the precision of product; 4) cooling system of burning torch of the present invention is through optimal design, enhances cooling effect, extends the service life of middle striking nozzle; 5) protective sleeve is provided with protection cotton up to cover close to the position of plasma arc, can extend the service life of protective sleeve, reduce use cost.
Accompanying drawing explanation
Fig. 1 is the fractionation schematic diagram of the non-high frequency plasma cutting gun of middle striking of the present invention;
Fig. 2 is the assembling schematic diagram of the non-high frequency plasma cutting gun of middle striking of the present invention;
Fig. 3 is the sectional view of the non-high frequency plasma cutting gun of middle striking of the present invention;
In figure, 1 is handle, 2 is rifle head main body, 3 is middle arc electrode, 4 is middle striking nozzle, 5 is protective sleeve, 6 is cylindricality connector, 7 is striking portion, 8 for going out arc hole, 9 is taper wall, 10 is ring of eddy, 11 is protection cotton up to cover, 12 is piston, 13 is piston rod, 14 is back-moving spring, 15 is limiting section, 16 is gas passage, 17 is airway, 18 is pore, 19 is passage, 20 is piston tube, 21 is tube connector, 22 is adapter sleeve, 23 is sealing ring, 24 is leakage hole, 25 is cooled gas path, 26 is refrigerating gas outlet, 27 is turning rolls.
Detailed description of the invention
Referring to figs. 1 through the non-high frequency plasma cutting gun of striking in the one shown in Fig. 3, it comprises handle 1, rifle head main body 2, middle arc electrode 3, middle striking nozzle 4, protective sleeve 5 and the driver part that in driving, arc electrode 3 is separated with middle striking nozzle 4, described rifle head main body 2 is fixedly connected with handle 1, the top of described middle arc electrode 3 is provided with the cylindricality connector 6 be connected with described driver part, the middle part of middle arc electrode 3 is provided with lug boss, lug boss is columniform convex, the below of lug boss is provided with the striking portion 7 of the taper surface of reduced diameter, the middle part of middle arc electrode 3 and bottom extend in the cavity of middle striking nozzle 4 inside, the lower end of middle striking nozzle 4 is provided with out arc hole 8, taper wall 9 is provided with in the middle part of the cavity of middle striking nozzle 4 inside, this taper wall 9 is corresponding with the taper surface size in striking portion 7, ring of eddy 10 is connected with at the top of middle striking nozzle 4, the top of ring of eddy 10 is connected with rifle head main body 2, described protective sleeve 5 be arranged on middle striking nozzle 4 and rifle head main body 2 outside, protective sleeve 5 top is connected with rifle head main body 2, the position being arranged in the bottom of striking nozzle 4 in the lower end of protective sleeve 5 is provided with protection cotton up to cover 11.
For the ease of arc electrode 3 and middle striking nozzle 4 in controlling being separated and closed, described driver part comprises piston 12 and piston rod 13, the lower end of piston rod 13 arranges female connecting hole, the cylindricality connector 6 on middle arc electrode 3 top is provided with the screw-internal thread fit external screw thread with this connecting hole, piston 12 to be fixed on piston rod 13 and to be arranged in the top of arc electrode 3, piston rod 13 is positioned at above piston 12 and is provided with back-moving spring 14, the top being positioned at back-moving spring 14 in rifle head main body 2 inside is provided with limiting section 15, the upper end of back-moving spring 14 withstands on limiting section 15, the lower end of back-moving spring 14 withstands on piston 12, piston rod 13 inside is provided with gas passage 16, the top of bar is connected with airway 17, piston rod 13 wall is provided with pore 18 between piston 12 and middle arc electrode 3, position corresponding with this pore 18 position on rifle head main body 2 wall is provided with passage 19.
In order to strengthen the Product Precision of rifle head main body 2, strengthen cooling effect, extend life of product, described rifle head main body 2 comprises piston tube 20, tube connector 21 and is connected to the adapter sleeve 22 at tube connector 21 lower ending opening place, tube connector 21 is connected to the middle and lower part of piston tube 20, and adapter sleeve 22 is connected to the bottom of tube connector 21.
In order to ensure the sealing between adapter sleeve 22 and piston rod 13, seal groove is provided with in the middle part of described adapter sleeve 22 inwall, arrange sealing ring 23 in seal groove, piston rod 13 passes from sealing circle 23, makes to keep air-tightness between adapter sleeve 22 and piston rod 13.
Limiting section 15 described in such scheme is for being arranged on the step surface of the bottom of piston tube 20.
Passage 19 described in such scheme is arranged on the tube wall of described tube connector 21.
In order to reduce the up resistance of piston 12; be convenient to arc electrode 3 in piston 12 drive be separated with middle striking nozzle 4; the wall of described rifle head main body 2 is positioned at above piston 12 and is provided with leakage hole 24; described leakage hole 24 is arranged on the tube wall of tube connector 21, and is positioned at the top of described protective sleeve 5.
In order to strengthen the air-tightness of protective sleeve 5 and rifle head main body 2 connecting portion; in the below of described protective sleeve 5 with the connecting portion of rifle head main body 2; sealing ring 23 is provided with between protective sleeve 5 and rifle head main body 2; cooling down is carried out for the ease of centering striking nozzle 4; protective sleeve 5 inside is provided with the flange collar of striking nozzle 4 in support; this flange collar is provided with cooled gas path 25, the below of protective sleeve 5 is provided with refrigerating gas outlet 26.In order to strengthen the cooling effect of centering striking nozzle 4, cooled gas path 25 is obliquely installed towards the direction of middle striking nozzle 4, makes in the outside wall surface of refrigerating gas by striking nozzle 4 in arrival direct after cooled gas path 25.
For the ease of the placement of burning torch, the below of described protective sleeve 5 is provided with turning rolls 27, turning rolls 27 is provided with the support member corresponding with protective sleeve 5 shape.
The non-high frequency plasma cutting gun of middle striking of the present invention in a non-operative state, the striking portion 7 of middle arc electrode 3 contacts with the taper wall 9 of middle striking nozzle 4 inside, the non-high frequency plasma cutting gun of middle striking in use, airway 17 on rifle head main body 2 is connected with high pressure plasma gas tank, then air valve is opened, plasma (orifice) gas enters into the gas passage 16 in piston rod 13 by airway 17, then derive from the pore 18 between piston 12 and middle arc electrode 3, then, the promotion piston 12 of high pressure plasma gas moves upward, piston 12 drives piston rod 13 and middle arc electrode 3 to move upward, middle arc electrode 3 is separated with middle striking nozzle 4, partial high pressure plasma gas is derived from the passage 19 rifle head main body 2, enter in the cavity of protective sleeve 5 inside, this part high pressure plasma gas enters in ring of eddy 10 by the pore 18 on ring of eddy 10, by the gas passage 16 in ring of eddy 10, enter in the cavity of striking nozzle 4 inside, then the striking portion 7 of middle arc electrode 3 and the taper surface of middle striking nozzle 4 inside is passed downwardly through, plasma-arc is excited in 7, this striking portion, electric arc is by the through hole ejection below middle striking nozzle 4, another part high pressure plasma gas is through the cooled gas path 25 on oversheath, in space in arrival between striking nozzle 4 and oversheath, centering striking nozzle 4 cools, and discharged by the refrigerating gas outlet 26 below oversheath.After middle striking non-high frequency plasma cutting gun end-of-job, powered-down, by the time after middle striking nozzle 4 and middle arc electrode 3 cool, close high pressure plasma gas valve, piston 12 is at the moved downward of back-moving spring 14, and piston 12 drives piston rod 13 and then in driving, arc electrode 3 moves downward, and makes the striking portion 7 of middle arc electrode 3 and the taper of middle striking nozzle 4 inside avoid returning to the closure state under initial state, finally be placed on turning rolls 27, use in order to next time.
Claims (9)
1. the non-high frequency plasma cutting gun of striking in a kind, it is characterized in that: it comprises handle, rifle head main body, middle arc electrode, middle striking nozzle, protective sleeve and the driver part that in driving, arc electrode is separated with middle striking nozzle, described rifle head main body is fixedly connected with handle, the top of described middle arc electrode is provided with the cylindricality connector be connected with described driver part, the middle part of middle arc electrode is provided with lug boss, lug boss is columniform convex, the below of lug boss is provided with the striking portion of the taper surface of reduced diameter, the middle part of middle arc electrode and bottom extend in the cavity of middle striking nozzle interior, the lower end of middle striking nozzle is provided with out arc hole, taper wall is provided with in the middle part of the cavity of middle striking nozzle interior, this taper wall is corresponding with the taper surface size in striking portion, ring of eddy is connected with at the top of middle striking nozzle, the top of ring of eddy is connected with rifle head main body, described protective sleeve be arranged on middle striking nozzle and rifle head main body outside, protective sleeve top is connected with rifle head main body, the position being arranged in the bottom of striking nozzle in the lower end of protective sleeve is provided with protection cotton up to cover.
2. the non-high frequency plasma cutting gun of middle striking according to claim 1, it is characterized in that: described driver part comprises piston and piston rod, the lower end of piston rod is fixedly connected with middle arc electrode, piston is fixed on the piston rod and is arranged in the top of arc electrode, the top being positioned at piston is on the piston rod provided with back-moving spring, the top being positioned at back-moving spring in rifle head main body inside is provided with limiting section, piston rod inner is provided with gas passage, the top of piston rod is connected with airway, piston rod wall is provided with pore between piston and middle arc electrode, on rifle head main body wall, the position corresponding with this pore position is provided with passage.
3. the non-high frequency plasma cutting gun of middle striking according to claim 2, it is characterized in that: described rifle head main body comprises piston tube, tube connector and is connected to the adapter sleeve at tube connector lower ending opening place, tube connector is connected to the middle and lower part of piston tube, and adapter sleeve is connected to the bottom of tube connector.
4. the non-high frequency plasma cutting gun of middle striking according to claim 3, it is characterized in that: in the middle part of described adapter sleeve inwall, be provided with seal groove, arrange sealing ring in seal groove, piston rod passes from sealing circle, makes to keep air-tightness between adapter sleeve and piston rod.
5. the non-high frequency plasma cutting gun of middle striking according to claim 3, is characterized in that: described limiting section is the step surface of the bottom being arranged on piston tube.
6. the non-high frequency plasma cutting gun of middle striking according to claim 3, is characterized in that: described passage is arranged on the tube wall of described tube connector.
7. the non-high frequency plasma cutting gun of middle striking according to claim 3; it is characterized in that: be positioned at above piston on the wall of described rifle head main body and be provided with leakage hole; described leakage hole is arranged on the tube wall of tube connector, and is positioned at the top of described protective sleeve.
8. the non-high frequency plasma cutting gun of middle striking according to claim 1; it is characterized in that: in the below of the connecting portion of described protective sleeve and rifle head main body; sealing ring is provided with between protective sleeve and rifle head main body; protective sleeve inside is provided with the flange collar of striking nozzle in support; this flange collar is provided with cooled gas path, and the below of protective sleeve is provided with refrigerating gas outlet.
9. the non-high frequency plasma cutting gun of middle striking according to claim 1, is characterized in that: the below of described protective sleeve is provided with turning rolls, turning rolls is provided with the support member corresponding with protective sleeve shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212439.0A CN104014918B (en) | 2014-05-19 | 2014-05-19 | The non-high frequency plasma cutting gun of middle striking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212439.0A CN104014918B (en) | 2014-05-19 | 2014-05-19 | The non-high frequency plasma cutting gun of middle striking |
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| Publication Number | Publication Date |
|---|---|
| CN104014918A CN104014918A (en) | 2014-09-03 |
| CN104014918B true CN104014918B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410212439.0A Active CN104014918B (en) | 2014-05-19 | 2014-05-19 | The non-high frequency plasma cutting gun of middle striking |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014918B (en) * | 2014-05-19 | 2016-02-17 | 常州市华瑞焊割机械有限公司 | The non-high frequency plasma cutting gun of middle striking |
| DE102016115463A1 (en) * | 2016-08-19 | 2018-02-22 | Ejot Gmbh & Co. Kg | Method for connecting at least two component layers |
| CN107442914B (en) * | 2017-09-28 | 2021-01-29 | 东北石油大学 | High-power plasma cutting torch for cutting stainless steel with thickness of 100-160 mm |
| CN109226948A (en) * | 2018-11-28 | 2019-01-18 | 黄山张氏焊接科技有限公司 | Double Purpose Galt is cut in a kind of universal plasma (orifice) gas slicing |
| CN109773314B (en) * | 2019-02-22 | 2023-10-31 | 上海亿诺焊接科技股份有限公司 | Plasma contact arc striking cutting gun head |
| CN112091388A (en) * | 2020-09-29 | 2020-12-18 | 孙景玉 | Cutting torch anti-collision protection device of numerical control plasma cutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5278388A (en) * | 1993-06-07 | 1994-01-11 | Huang Huang Nan | Plasma welding and cutting gun for discharging plasma gas with constant outlet pressure |
| US5695662A (en) * | 1988-06-07 | 1997-12-09 | Hypertherm, Inc. | Plasma arc cutting process and apparatus using an oxygen-rich gas shield |
| CN2719472Y (en) * | 2004-07-15 | 2005-08-24 | 常州市远洋焊割设备有限公司 | Air plasma arc cutting torch |
| CN1678164A (en) * | 2004-03-31 | 2005-10-05 | 株式会社大亨 | Plasma cutting torch |
| CN104014918A (en) * | 2014-05-19 | 2014-09-03 | 常州市华瑞焊割机械有限公司 | Medium-arc-striking non-high-frequency plasma cutting gun |
-
2014
- 2014-05-19 CN CN201410212439.0A patent/CN104014918B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695662A (en) * | 1988-06-07 | 1997-12-09 | Hypertherm, Inc. | Plasma arc cutting process and apparatus using an oxygen-rich gas shield |
| US5278388A (en) * | 1993-06-07 | 1994-01-11 | Huang Huang Nan | Plasma welding and cutting gun for discharging plasma gas with constant outlet pressure |
| CN1678164A (en) * | 2004-03-31 | 2005-10-05 | 株式会社大亨 | Plasma cutting torch |
| CN2719472Y (en) * | 2004-07-15 | 2005-08-24 | 常州市远洋焊割设备有限公司 | Air plasma arc cutting torch |
| CN104014918A (en) * | 2014-05-19 | 2014-09-03 | 常州市华瑞焊割机械有限公司 | Medium-arc-striking non-high-frequency plasma cutting gun |
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| CN104014918A (en) | 2014-09-03 |
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Denomination of invention: Medium arc non high-frequency plasma cutting gun Granted publication date: 20160217 Pledgee: China Construction Bank Corporation Changzhou Wujin sub branch Pledgor: CHANGZHOU HUARUI WELDING & CUTTING MACHINERY CO.,LTD. Registration number: Y2024980005968 |