CN201970004U - Electrode head for plasma cutting machine - Google Patents
Electrode head for plasma cutting machine Download PDFInfo
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- CN201970004U CN201970004U CN2011200432350U CN201120043235U CN201970004U CN 201970004 U CN201970004 U CN 201970004U CN 2011200432350 U CN2011200432350 U CN 2011200432350U CN 201120043235 U CN201120043235 U CN 201120043235U CN 201970004 U CN201970004 U CN 201970004U
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- electrode tip
- cut
- electrode
- supporting body
- tube wall
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Abstract
The utility model provides an electrode head for a plasma cutting machine. The electrode head comprises a bearing body, an electrode core and a hard soldering structure, wherein the bearing body is tubular and is provided with a tube wall and a closed end and an open end at the two ends of the tube wall; the closed end further extends into the bearing body to form a convex structure; a concave structure is formed towards the interior of the convex structure from the outer side in the center of the closed end; an annular channel is formed between the convex structure and the tube wall; and the electrode core is arranged in the concave structure and is fixedly connected to the concave structure through the hard soldering structure. The electrode head for the plasma cutting machine has higher strength and better cooling effect.
Description
Technical field
The utility model relates to CUT processing technology field, more especially relevant for a kind of CUT electrode tip.
Background technology
CUT is the machinery of metal material being processed by plasma cutting technique.The plasma cutting is to utilize the heat of high-temperature plasma electric arc to make the metal part or the local melting (and evaporation) of workpiece incision, and borrow the isoionic momentum of high speed to get rid of motlten metal to form a kind of processing method of otch, generally be used to cut the metal that is difficult to cut, especially (for example: stainless steel for non-ferrous metal, aluminium, copper, titanium, nickel) cutting effect is better, when its major advantage is the little metal of cutting thickness, the plasma cutting speed is fast, especially when cutting normal carbon steel sheet, speed can reach 5～6 times of oxygen cutting method, and cut surface is bright and clean, thermal deformation is little, almost there is not the heat affected area, so present stage has become metal-processing industry carries out cutting processing to metal material first-selection.
In addition, the cutting characteristic of electrode tip article on plasma arc and cutting quality, speed have extremely significantly influence, and electrode tip generally is by sleeve pipe, and supporting body and electrode constitute.In the prior art, the connected mode between the electrode tip is reached the mode of connection mostly by interference engagement (or claiming interference fit).But interfere pairing to make the high electrode tip of required precision, processing or mounting or dismounting and all compare difficulty.In general the assembling method of interference engagement has three kinds:
(1) plunging: available hammer adds cushion block and knocks and be pressed into or be pressed into forcing press, though so can reach close-fitting purpose, required extra clamp tool equipment clamping.When the size of workpiece hour, the setting of clamp tool and clamping are difficult, just can't construct.And because of moment be pressed into the excessive chuck apparatus that causes of strength often can't true closely clamping, produce and realize being difficult for, making inconvenient shortcoming in addition, member with CUT consists of example, it is very big that moment is pressed into strength, therefore the cooperation that is pressed into causes the electrode tip distortion easily or damages, and causing can't high accuracy, high accuracy electrode is inserted in the sleeve pipe, causes regular manufacturing waste product, cause the burden on the cost, comparatively be not inconsistent economic benefit.
(2) heat expansion method: the principle of utilizing object to expand with heat and contract with cold increases aperture wherein the sleeve pipe heating, then in the electrode load hole with the axle shape.Its heating means commonly used are sleeve pipe to be put into hot water (80 ℃～100 ℃) or deep fat (90 ℃～320 ℃) carries out.
(3) shrinkage method: the principle of utilizing object to expand with heat and contract with cold, the electrode of axle shape is cooled off, treat again electrode to be packed in the hole of sleeve pipe after electrode dwindles.Cooling means commonly used is to adopt dry ice and liquid nitrogen to cool off.Heat expansion method and shrinkage method are used for the cooperation of electrode tip component, have not only added operation procedure one, and more complicated whole process realizes also inconvenient.
In view of this, how to connect the existing shortcoming of fitting method and research and develop improvement at above-mentioned prior art electrode tip component, allow each assembly of electrode tip can closely connect cooperation, and the connection matching program is more simplified, and avoid unnecessary damage, real target for the required effort research and development of relevant industry.
The utility model content
In order to solve the desirable not to the utmost part of aforementioned prior art, the utility model provides a kind of CUT electrode tip, includes supporting body, electrode cores and hard solder structure.Supporting body in a tubular form, the blind end and the open end that have a tube wall and be positioned at the tube wall two ends, blind end more stretches out a projective structure towards the inside of supporting body, the central authorities of blind end are by an outer sunk structure, annular groove of formation between projective structure and the tube wall of being formed with towards the inside of projective structure; Electrode cores is arranged in the sunk structure, and is solidly connected to sunk structure by the hard solder structure.
Described CUT electrode tip, wherein, the hard solder thickness of structure is between 0.01 millimeter to 5 millimeters.
Described CUT electrode tip, wherein, sunk structure is a cylinder hole, electrode cores is a column.
Described CUT electrode tip, wherein, electrode cores is a hafnium matter structure.
Described CUT electrode tip, wherein, electrode cores is a zirconium matter structure.
Described CUT electrode tip, wherein, supporting body is copper structure.
Described CUT electrode tip, wherein, supporting body is silver structure.
Described CUT electrode tip, wherein, the outside of the tube wall of supporting body and the connecting portion of blind end further is formed with the lead angle structure of a ring-type.
Therefore, main purpose of the present utility model provides a kind of CUT electrode tip, technological means by hard solder, make electrode cores be solidly connected in the sunk structure of supporting body by the hard solder structure, therefore, CUT of the present utility model does not need excessive external force extruding when making of electrode tip, and hard solder intensity is greater than the intensity of prior art interference fit, so electrode tip is not yielding and damage, stress intensity is preferable.
Another purpose of the present utility model provides a kind of CUT electrode tip, and by the technological means of hard solder, its electric conductivity is better than the electric conductivity of prior art interference fit, can improve the cutting usefulness of CUT.
A purpose more of the present utility model provides a kind of CUT electrode tip, be with hafnium matter structure or zirconium matter structure as the electrode cores material, discharge effect and radiating effect are good than prior art all.
Description of drawings
Fig. 1 is the CUT electrode tip sectional exploded view that the utility model proposes.
Fig. 2 is the CUT electrode tip profile that the utility model proposes.
Fig. 3 is CUT another profile of electrode tip that the utility model proposes.
Primary clustering symbol description in the accompanying drawing
Supporting body 1
Tube wall 11
Blind end 12
Open end 13
Sunk structure 15
Electrode cores 2
Hard solder thickness of structure T
Lead angle structure 4
The specific embodiment
Because the utility model discloses a kind of CUT electrode tip, CUT relative theory and the implementation method wherein utilized have been that those of ordinary skills can understand, so with hereinafter explanation, no longer do complete description.Simultaneously,, be intended to express the implication relevant, also do not need, formerly statement according to the complete drafting of actual size with the utility model feature with the accompanying drawing that is hereinafter contrasted.
Electrode tip must possess high conductivity, the electric conductivity high person of healing, and its operating efficiency is higher.CUT except possessing the high conductivity, also need possess higher structural strength and high temperature resistant degree and higher electron emission rate with electrode tip.As with regard to the electric conductivity of metal, silver is best, is copper, gold, aluminium in regular turn secondly.Though silver is good splendid with the electric conductivity of gold, but fusing point is too low, non-refractory, the back that is heated is softening easily; And CUT is in when operation, and the electrode cores of electrode tip be because high heat and high temperature can take place discharge generation electric arc, therefore silver and gold and be not suitable for the electrode cores of CUT.If entire electrode is all used silver simultaneously, also too expensive, be not inconsistent economic benefit.Therefore, the utility model at first proposes a kind of CUT electrode tip of novelty, go in conjunction with copper and metal silver-colored, that reach other high rate discharge by suitable structure, can take into account high conductivity, high structural strength, high rate discharge, but can suitably reduce material cost, splendid industrial value is arranged.
At first, please refer to shown in Figure 1ly, be the preferred embodiment that the utility model proposed, for a kind of CUT with electrode tip 100, include supporting body 1, electrode cores 2, hard solder structure 3.Secondly supporting body 1 is preferable with the tubular structure of copper structure or silver structure, and silver is the metal of electric conductivity the best, is copper, but visual actual demand, uses the preferable metal material of other electric conductivity.Supporting body has a tube wall 11 in addition, and the blind end 12 and open end 13 that are positioned at tube wall 11 two ends, and blind end 12 is relative two ends with open end 13, blind end 12 more stretches out a projective structure 14 towards the inside of supporting body 1, the central authorities of blind end 12 are by be formed with a sunk structure 15 outward towards the inside of projective structure 14, form an annular groove 16 between projective structure 14 and the tube wall 11, electrode cores 2 is arranged in the sunk structure 15, and is solidly connected to sunk structure 15 by hard solder structure 3.
Please refer to Fig. 2, electrode cores 2 is good with metal high temperature resistant and that discharge rate is higher, wherein, nearly 2200 ℃ of the melting temperatures of hafnium, and when normal temperature resistance to oxidation, so electrode cores 2 with hafnium matter structure serve as preferred, secondly be zirconium matter structure.
In this preferred embodiment, importantly, the utility model is by the technology of hard solder, can make hard solder structure 3 have preferable high-temperature resistance (compared to soft soldering), and in welding process, can not hurt soldered material (compared to arc welding), so hard solder is for making the selection process of CUT with electrode tip.Simultaneously, for technology by hard solder, electrode cores 2 is fixed in the sunk structure 15 of supporting body 1, hard solder structure 3 only can be made up of silver and copper, can not contain other metal material, otherwise electrode cores 2 can not be fixed in steadily just in the sunk structure 15 of supporting body 1; And hard solder structure 3 is preferable to contain 20%～80% silver.In the preferred embodiment, please continue with reference to shown in Figure 2, hard solder structure 3 forms the light wall pipe shapes, and hard solder thickness of structure T is being preferable between 0.01 millimeter to 5 millimeters.The concrete size of hard solder thickness of structure T can adjust according to actual demand.
In addition, when described sunk structure 15 is cylinder hole, described electrode cores 2 thinks that column is preferable, if the CUT that the utility model is proposed has better stress intensity with electrode tip 100, described sunk structure 15 thinks that uniform cylindrical hole is preferable, described electrode cores 2 thinks that the uniform cylinder of external diameter is preferable, can certainly adopt other column structure, for example triangular prism, tetragonal prism etc.Please continue with reference to figure 2, in order further to reduce cost of manufacture, it is preferable that projective structure 14 forms a uniform cylinder of external diameter, so that turning is made.And, form an annular groove 16 between described projective structure 14 and the described tube wall 11, can power pole piece 2 operated discharge and when producing high temperature, cooling fluid can successfully mobile to reach the effect of heat radiation annular groove 16 in.
Because CUT needs the favorable conductive effect with electrode tip 100, so CUT seems very crucial with selecting for use of each assembly material in the electrode tip 100.CUT in this preferred embodiment preferably uses copper structure or silver structure as conductive material with electrode tip 100, supporting body 1, and its purpose is not only saved extra cost of manufacture than other conductive material, and has splendid conductance simultaneously; 2 preferred hafnium matter structures of using of electrode cores, next uses zirconium matter structure, its discharge rate is higher, and hardness is big, the intensity height, normal temperature can effectively avoid being subjected to strong oxide etch down, even also can not damage electrode tip under the situation of electronics emission repeatedly, prolongs the life-span of CUT with electrode tip 100 so can show to land.What specify is that " hard solder " has silver soldering, brazing, aluminium weldering according to the difference of scolder ... etc.Being good with silver soldering wherein, in this preferred embodiment, being good to use silver soldering, and silver and copper are only arranged in the scolder, is preferable to contain 20%～80% silver more.
Please refer to shown in Figure 3ly, the tube wall of supporting body 1 11 and the outside of the connecting portion of blind end 12 further are formed with the lead angle structure 4 of a ring-type.Therefore, by the lead angle structure 4 on the supporting body 1, described CUT can generally not had the supporting body 1 of lead angle structure 4 finishing of operation of being more convenient for discharging with electrode tip 100.
Importantly, the disclosed CUT of the utility model electrode tip 100, wherein supporting body 1 is to cooperate with hard solder with electrode cores 2 affixed mode between the two, so do not need the excessive external force extruding as the picture prior art use interference fit when making, so CUT of the present utility model is preferable with electrode tip 100 stress.And, the CUT of the utility model use hard solder cooperation manufacturing can be greater than the CUT electrode tip intensity of using the manufacturing of prior art interference fit with the intensity of electrode tip 100, therefore, can make CUT can firmlyer connect cooperation closely with each member of electrode tip 100.Moreover, use hard solder to cooperate the program complexity that not only solves existing interference fit technology, need not use clamp tool, therefore make more conveniently, more can reduce manufacturing cost.
The above is the utility model preferred embodiment only, is not to apply for a patent right in order to limit the utility model; Simultaneously above description should be understood and implements for those of ordinary skills, so other does not break away from the equivalence of being finished under the spirit that the utility model discloses and change or modify, and all should be contained in the claim.
Claims (8)
1. a CUT electrode tip includes a supporting body (1) and an electrode cores (2), it is characterized in that:
Described CUT more comprises a hard solder structure (3) with electrode tip;
Described supporting body (1) in a tubular form, the blind end (12) and an open end (13) that have a tube wall (11) and be positioned at described tube wall (11) two ends, described blind end (12) more stretches out a projective structure (14) towards the inside of described supporting body (1), the central authorities of described blind end (12) form an annular groove (16) by being formed with a sunk structure (15) towards the inside of described projective structure (14) outward between described projective structure (14) and the described tube wall (11);
Described electrode cores (2) is arranged in the described sunk structure (15), and is solidly connected to described sunk structure (15) by described hard solder structure (3).
2. CUT electrode tip according to claim 1 is characterized in that: described hard solder thickness of structure (T) is between 0.01 millimeter to 5 millimeters.
3. CUT electrode tip according to claim 1 is characterized in that: described sunk structure (15) is a cylinder hole, and described electrode cores (2) is a column.
4. CUT electrode tip according to claim 1 is characterized in that: described electrode cores (2) is a hafnium matter structure.
5. CUT electrode tip according to claim 1 is characterized in that: described electrode cores (2) is a zirconium matter structure.
6. CUT electrode tip according to claim 1 is characterized in that: described supporting body (1) is copper structure.
7. CUT electrode tip according to claim 1 is characterized in that: described supporting body (1) is silver structure.
8. CUT electrode tip according to claim 1 is characterized in that: the outside of the described tube wall (11) of described supporting body (1) and the connecting portion of described blind end (12) further is formed with the lead angle structure (4) of a ring-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200432350U CN201970004U (en) | 2011-02-22 | 2011-02-22 | Electrode head for plasma cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200432350U CN201970004U (en) | 2011-02-22 | 2011-02-22 | Electrode head for plasma cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201970004U true CN201970004U (en) | 2011-09-14 |
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ID=44575110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200432350U Expired - Fee Related CN201970004U (en) | 2011-02-22 | 2011-02-22 | Electrode head for plasma cutting machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201970004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382387A (en) * | 2014-08-21 | 2016-03-09 | 林肯环球股份有限公司 | Multi-component electrode for a plasma arc cutting torch and cutting torch including the same |
-
2011
- 2011-02-22 CN CN2011200432350U patent/CN201970004U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382387A (en) * | 2014-08-21 | 2016-03-09 | 林肯环球股份有限公司 | Multi-component electrode for a plasma arc cutting torch and cutting torch including the same |
| CN105382387B (en) * | 2014-08-21 | 2019-08-13 | 林肯环球股份有限公司 | Multi-component electrode for plasma cutting torch and the cutting torch including the electrode |
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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: 20110914 Termination date: 20160222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |