CN205111048U - Plasma electrode - Google Patents
Plasma electrode Download PDFInfo
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- CN205111048U CN205111048U CN201520884299.1U CN201520884299U CN205111048U CN 205111048 U CN205111048 U CN 205111048U CN 201520884299 U CN201520884299 U CN 201520884299U CN 205111048 U CN205111048 U CN 205111048U
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- inner core
- electrode body
- electrode
- position limiting
- hole
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Abstract
The utility model discloses a plasma electrode, including electrode main part and brazing type inner core, the inside of electrode main part is equipped with the cooling hole, and the head of electrode main part is equipped with the inner core hole in intercommunication cooling hole, the welding of brazing type inner core is in the inner core hole of electrode main part, the brazing type inner core includes electrode main part inner core and electrode emitter, be equipped with the hole of brazing on the electrode main part inner core, the electrode emitter is brazed in the hole of brazing of electrode main part inner core. The utility model discloses a plasma electrode and brazing type inner core are split type structure, and electrode main part inner core adopts the mode of brazing to be connected with the electrode emitter, and again with the welding of electrode main part, the high temperature the during welding is little to the influence of electrode overall structure, even the in -process is being brazed because high temperature warp to some extent to electrode main part inner core, it influences also not have overall product's shape, can not influence whole product quality.
Description
Technical field
The utility model relates to a kind of plasma cutting machines electrode.
Background technology
Plasma electrode generally includes common cutting electrode and inserted plasma electrode.Common cutting electrode is directly fitted in by emitter stage in the hole on electric conductor end face, and technique is simple, and processing cost is low, but the life-span is short, easy loose contact; During interference press-fit connects, the size of the magnitude of interference is of crucial importance, and the magnitude of interference is too large, and material can not bear, and there will be cracking; The magnitude of interference is too little, and make caloric value large, can not good contact cause resistance excessive, function cannot realize.Inserted plasma electrode inlays a silver circle in electric conductor axis hole, by the mode press-fited, emitter stage is assembled in the axis hole of electric conductor, this electrode, compared with ordinary electrode, enhances the contact strength between emitter stage and electric conductor, decreases gap, improve electric conductivity, reduce contact resistance, improve thermal diffusivity, but owing to adopting press-fit approach, or can not eliminate gap completely, the life-span of electrode more needs further raising.
Application number is that the Chinese patent literature of CN201510150132.7 discloses " a kind of novel braze welding formula plasma electrode and manufacture method thereof ", by loading silver solder and emitter stage successively in the soldering hole of electrode body, then sub-assembly being put into vacuum drying oven soldering and making.Because brazing temperature is high, adopt the easily at high temperature deliquescing of common copper electrode body, distortion, thus cause product rejection, therefore usually adopt dispersion copper as soldering main body.Its shortcoming is: 1, product cost increases greatly; 2, the holding time is longer, and follow-up needs processes; 3, dispersion copper electric conductivity and product appearance undesirable.
Utility model content
The purpose of this utility model is to provide that a kind of quality is good, outward appearance is perfect, cost is low, the plasma electrode of long service life.
The technical scheme realizing the purpose of this utility model is: a kind of plasma electrode, comprises electrode body and braze welding type inner core; The inside of described electrode body is provided with Cooling Holes, and the head of electrode body is provided with the inner chip hole being communicated with Cooling Holes; Described braze welding type inner core is welded in the inner chip hole of electrode body; Described braze welding type inner core comprises electrode body inner core and electrode emitter; Described electrode body inner core is provided with soldering hole; Described electrode emitter soldering is in the soldering hole of electrode body inner core.
The outer wall of the electrode body inner core of described braze welding type inner core is provided with outer position limiting structure, and electrode body inner core is divided into larger diameter end and smaller diameter end by outer position limiting structure, and soldering hole is arranged on the end face of the larger diameter end of electrode body inner core; Position limiting structure in the position pressing close to Cooling Holes in the inner chip hole of electrode body is provided with and can matches with the outer position limiting structure on outer core in electrode body.
The outer position limiting structure of the electrode body inner core of described braze welding type inner core and the interior position limiting structure of electrode body to be outer position limiting structure be can be bonded to each other staircase structural model or wave structure or oblique angle type structure or circular arc type structure.
The material of the electrode body inner core of described electrode body and braze welding type inner core adopts oxygen-free copper.
Described braze welding type inner core is welded in the inner chip hole of electrode body by high energy beam current.
Described high energy beam current adopts laser.
Have employed technique scheme, the utility model has following beneficial effect: (1) plasma electrode of the present utility model and braze welding type inner core thereof are split-type structural, electrode body inner core adopts brazing mode to be connected with electrode emitter, weld with electrode body again, high temperature during welding is little to electrode integral structure influence, even if electrode body inner core because high temperature is out of shape to some extent, does not also affect the shape of Total Product in brazing process, integral product quality can not be affected.
(2) the interior position limiting structure of electrode body of the present utility model and the outer position limiting structure of electrode body inner core not only can play spacing effect when being press-fitted, and can also prevent welding slag in welding process from splashing.
(3) material of electrode body of the present utility model and electrode body inner core all adopts oxygen-free copper, and not only material cost reduces greatly, and material high energy beam current of the same race welding, and welded rear range estimation no-welding-seam, product surface quality is perfect.
(4) braze welding type inner core of the present utility model and electrode body adopt advanced high energy beam current to weld, and two sections of material can merge completely, and braze welding type inner core hardness that is first and electrode body can not reduce, and effectively ensure that quality and the service life of product.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
Fig. 2 is the structural representation of the electrode body of embodiment 1 of the present utility model.
Fig. 3 is the structural representation of the electrode body inner core of the braze welding type inner core of embodiment 1 of the present utility model.
Fig. 4 is the schematic diagram that the braze welding type inner core of embodiment 1 of the present utility model is placed in brazing jig.
Fig. 5 is the schematic diagram of braze welding type inner core by press fitting device press-in electrode body of embodiment 1 of the present utility model.
Fig. 6 is the structural representation of the braze welding type inner core of embodiment 2 of the present utility model.
Fig. 7 is the structural representation of the braze welding type inner core of embodiment 3 of the present utility model.
Fig. 8 is the structural representation of the braze welding type inner core of embodiment 4 of the present utility model.
Detailed description of the invention
(embodiment 1)
See Fig. 1 to Fig. 3, the plasma electrode of the present embodiment comprises electrode body 1 and braze welding type inner core 2.
The inside of electrode body 1 is provided with Cooling Holes 11, and the head of electrode body 1 is provided with the inner chip hole 12 being communicated with Cooling Holes 11.Braze welding type inner core 2 is welded in the inner chip hole 12 of electrode body 1.Braze welding type inner core 2 comprises electrode body inner core 21 and electrode emitter 22.The material of electrode emitter 22 is hafnium, zirconium, tungsten etc.Electrode body inner core 21 is provided with soldering hole 211.Electrode emitter 22 soldering is in the soldering hole 211 of electrode body inner core 21.The material of the electrode body inner core 21 of electrode body 1 and braze welding type inner core 2 all adopts oxygen-free copper.The outer wall of the electrode body inner core 21 of braze welding type inner core 2 is provided with outer position limiting structure 212, and electrode body inner core 21 is divided into larger diameter end and smaller diameter end by outer position limiting structure 212, and soldering hole 211 is arranged on the end face of the larger diameter end of electrode body inner core 21.Position limiting structure 13 in the position pressing close to Cooling Holes 11 in the inner chip hole 12 of electrode body 1 is provided with and can matches with the outer position limiting structure 212 on electrode body inner core 21 outer wall.In the present embodiment, the outer position limiting structure 212 of electrode body inner core 21 and the interior position limiting structure 13 of electrode body 1 are staircase structural model that can be bonded to each other.
The manufacture method of the plasma electrode of the present embodiment, comprises the following steps:
1., oxygen-free copper is adopted to make electrode body inner core 21, and outer position limiting structure 212 is processed on outer wall, electrode body inner core 21 is divided into larger diameter end and smaller diameter end by outer position limiting structure 212, then on the end face of the larger diameter end of electrode body inner core 21, processes soldering hole 211.
2., make electrode solder 23 and electrode emitter 22, electrode solder 23 is silver solder preferably.
3., by the soldering hole 211 of electrode body inner core 21 place upward, then electrode solder 23 and electrode emitter 22 are put into successively the soldering hole 211 of electrode body inner core 21, obtain core assembly in electrode.
4., core assembly in electrode is inverted in brazing jig 3.See Fig. 4, brazing jig 3 comprises fixture cover 31, soldering balancing weight 32 and ceramic backing 33.Fixture cover 31 cylindrically hollow structure, the two ends up and down of hollow space are equipped with cavity, the middle intercommunicating pore for being communicated with upper and lower cavity.The top of ceramic backing 32 is provided with the boss that the lower chamber that overlaps 31 with fixture matches.Soldering balancing weight 32 is placed in the upper cavity of fixture cover 31.In electrode, core assembly is placed in the intercommunicating pore of fixture cover 31, and electrode body inner core 21 contacts with soldering balancing weight 32, electrode emitter 22 contacts with ceramic backing 33.
5., by soldering processes core assembly in electrode is made braze welding type inner core 2, technique is specially: core assembly in electrode is put into vacuum drying oven → vacuumize → step heating to brazing temperature → soldering → cool → come out of the stove.
6., oxygen-free copper is adopted to make electrode body 1, and process Cooling Holes 11 in the inside of electrode body 1, process at the head of electrode body 1 and be communicated with the inner chip hole 12 of Cooling Holes 11, position limiting structure 13 in requiring the position pressing close to Cooling Holes 11 in inner chip hole 12 to reserve can to match with the outer position limiting structure 212 on electrode body inner core 21 outer wall.
7., by press fitting device 4, braze welding type inner core 2 is press-fitted into electrode body 1.See Fig. 5, press fitting device 4 comprises base 41, locating piece 42, guide pin bushing 43 and depression bar 44.Base 41 is provided with vertical rod 411.The upper end of locating piece 42 is provided with locating hole 421, and locating hole 421 coordinates with the smaller diameter end of electrode body inner core 21.The center of guide pin bushing 43 is provided with pilot hole, and one end of pilot hole coordinates with the larger diameter end of electrode body inner core 21, and the other end coordinates with electrode body 1.When being press-fitted, first with the vertical rod 411 on base 41, locating piece 42 is headed in the Cooling Holes 11 of electrode body 1, and support electrode main body 1, then guide pin bushing 43 is enclosed within the head of electrode body 1, by depression bar 44, braze welding type inner core 2 is pressed in the inner chip hole 12 of electrode body 1, in the process of press-in, guide pin bushing 43 plays guide effect, locating piece 42 plays positioning action, and process of press in is until terminate when outer position limiting structure on electrode body inner core 21 outer wall 212 is fitted with the interior position limiting structure 13 in the inner chip hole 12 of electrode body 1 is spacing.
8., to the gap that is press-fitted between braze welding type inner core 2 with electrode body 1 carry out high energy beam current and weld, high energy beam current preferably adopts laser.
9., to the electrode after high energy beam current welding carry out numerical control turning, remove the weld seam produced in welding process, complete electrode fabrication.
(embodiment 2)
See Fig. 6, the present embodiment is substantially the same manner as Example 1, and difference is: the outer position limiting structure 212 of electrode body inner core 21 and the interior position limiting structure 13 of electrode body 1 are wave structure that can be bonded to each other.
(embodiment 3)
See Fig. 7, the present embodiment is substantially the same manner as Example 1, and difference is: the outer position limiting structure 212 of electrode body inner core 21 and the interior position limiting structure 13 of electrode body 1 are oblique angle type structure that can be bonded to each other.
(embodiment 4)
See Fig. 8, the present embodiment is substantially the same manner as Example 1, and difference is: the outer position limiting structure 212 of electrode body inner core 21 and the interior position limiting structure 13 of electrode body 1 are circular arc type structure that can be bonded to each other.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a plasma electrode, is characterized in that: comprise electrode body (1) and braze welding type inner core (2); The inside of described electrode body (1) is provided with Cooling Holes (11), and the head of electrode body (1) is provided with the inner chip hole (12) being communicated with Cooling Holes (11); Described braze welding type inner core (2) is welded in the inner chip hole (12) of electrode body (1); Described braze welding type inner core (2) comprises electrode body inner core (21) and electrode emitter (22); Described electrode body inner core (21) is provided with soldering hole (211); Described electrode emitter (22) soldering is in the soldering hole (211) of electrode body inner core (21).
2. a kind of plasma electrode according to claim 1, it is characterized in that: the outer wall of the electrode body inner core (21) of described braze welding type inner core (2) is provided with outer position limiting structure (212), electrode body inner core (21) is divided into larger diameter end and smaller diameter end by outer position limiting structure (212), and soldering hole (211) are arranged on the end face of the larger diameter end of electrode body inner core (21); The position pressing close to Cooling Holes (11) in the inner chip hole (12) of electrode body (1) is provided with the interior position limiting structure (13) that can match with the outer position limiting structure (212) on electrode body inner core (21) outer wall.
3. a kind of plasma electrode according to claim 2, is characterized in that: the outer position limiting structure (212) of the electrode body inner core (21) of described braze welding type inner core (2) and the interior position limiting structure (13) of electrode body (1) for outer position limiting structure (212) be can be bonded to each other staircase structural model or wave structure or oblique angle type structure or circular arc type structure.
4. a kind of plasma electrode according to claim 1, is characterized in that: the material of the electrode body inner core (21) of described electrode body (1) and braze welding type inner core (2) adopts oxygen-free copper.
5. a kind of plasma electrode according to claim 1, is characterized in that: described braze welding type inner core (2) is welded in the inner chip hole (12) of electrode body (1) by high energy beam current.
6. a kind of plasma electrode according to claim 5, is characterized in that: described high energy beam current adopts laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884299.1U CN205111048U (en) | 2015-11-06 | 2015-11-06 | Plasma electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884299.1U CN205111048U (en) | 2015-11-06 | 2015-11-06 | Plasma electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205111048U true CN205111048U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520884299.1U Withdrawn - After Issue CN205111048U (en) | 2015-11-06 | 2015-11-06 | Plasma electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN205111048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252160A (en) * | 2015-11-06 | 2016-01-20 | 常州特尔玛枪嘴有限公司 | Plasma electrode and manufacturing method thereof |
-
2015
- 2015-11-06 CN CN201520884299.1U patent/CN205111048U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252160A (en) * | 2015-11-06 | 2016-01-20 | 常州特尔玛枪嘴有限公司 | Plasma electrode and manufacturing method thereof |
| CN105252160B (en) * | 2015-11-06 | 2017-08-25 | 常州特尔玛枪嘴有限公司 | A kind of plasma electrode and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20170825 |