CN204308354U - A kind of multi-cavity type electric machining graphite electrode - Google Patents
A kind of multi-cavity type electric machining graphite electrode Download PDFInfo
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- CN204308354U CN204308354U CN201420686008.3U CN201420686008U CN204308354U CN 204308354 U CN204308354 U CN 204308354U CN 201420686008 U CN201420686008 U CN 201420686008U CN 204308354 U CN204308354 U CN 204308354U
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Abstract
The utility model discloses a kind of multi-cavity type electric machining graphite electrode, belong to ceramic precision processing technology field.This electrode comprises electrode body, connecting rod, securing member and electrode clamping plate, wherein, electrode body is offered five die cavities, electrode body is made to form roughing, middle processing and fine finishining continuous electric machining crescent curved surface, link is connected with precision EDM equipment by securing member, the graphite multi-cavity type machined electrode that the utility model provides has that working (machining) efficiency is high, reusable, processing cost is low, machining accuracy high.
Description
Technical field
The utility model belongs to ceramic precision processing technology field, particularly relates to a kind of edm electrode.
Background technology
With ZrB
2for the superhigh temperature ceramics of representative has high fusing point, high hardness, excellent electric conductivity and anti-oxidant ablation characteristics, have broad application prospects in fields such as metallurgy, Aeronautics and Astronautics.But due to the fragility that it is intrinsic, make it shape comparatively difficulty, therefore select suitable processing method and technique, significant to the precision form of superhigh temperature ceramics.
In many processing methods, precision EDM method is applicable to the precision form of superhigh temperature ceramics very much, and no matter to simple shape or complicated shape, precision EDM all can realize.In electric machining process, edm electrode determines superhigh temperature ceramics Components Shape and requirement on machining accuracy, and therefore select which kind of machined electrode just very important, it will directly have influence on shape and the machining accuracy of superhigh temperature ceramics component.
Prepare a kind of Novel electric machined electrode importance technically and be mainly reflected in good working (machining) efficiency, machining accuracy, convertibility, repeatability and low cost.
Exist using red copper electrode as edm electrode in prior art, its advantage is good conductivity, and its deficiency shows:
(1) red copper electrode quality is softer, leave standstill, transport and use procedure in yielding, finally affect machining accuracy and quality.
(2) red copper electrode material fusing point is low, realizes material remove in electric machining process by electric discharge ablation release liner.Because superhigh temperature ceramics fusing point is high, need larger energy could remove unnecessary material, comparatively large to the ablation of red copper electrode material, waste greatly and easily cause high temperature deformation, affects machining accuracy.
(3) red copper electrode material density is large, is 4.8 times of graphite electrode density.Even cannot clamping for machining large parts lifting difficulty.
(4) from material cost factor, comparatively graphite electrode material price is high a lot of for the red copper electrode material of same volume, and many processing rear electrodes cannot recycle and cause waste of material.
Because prior art exists above-mentioned problems, so the present inventor studies existing electrode assembly and improves, to developing, working (machining) efficiency is high, reusable, processing cost is low, the Novel electric machined electrode that machining accuracy is high.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide a kind of multi-cavity type electric machining graphite electrode, the electrode body of this machined electrode is offered five die cavities, electrode body is made to form roughing and fine finishining continuous electric machining crescent curved surface, link is connected with precision EDM equipment by securing member, the advantage that working (machining) efficiency is high, machining accuracy is high, processing cost is low of superhigh temperature ceramics complex component can be realized, complete the utility model on this basis.
The technical solution of the utility model is, a kind of multi-cavity type electric machining graphite electrode, comprise and connect electrode body, electrode body is tabular, this electrode body 1 offers the first die cavity, the second die cavity from bottom to top successively, 3rd die cavity, the 4th die cavity 14 and the 5th die cavity, wherein the first die cavity and the second die cavity are roughing operation machined electrode; 3rd die cavity and the 4th die cavity are semifinishing operation machined electrode; 5th die cavity is finishing step machined electrode, and the shape profile of die cavity mates with the contour structures of work piece, is the former of work piece formpiston, and the material of electrode body is graphite.
Wherein, the first die cavity, the second die cavity, the cavity shape profile of the 3rd die cavity, the 4th die cavity and the 5th die cavity is processed crescent pottery negative camber is the former of formpiston.First die cavity, the second die cavity, the 3rd die cavity, the 4th die cavity and the 5th die cavity can realize ceramic material roughing, in be worked into fine finishining, process does not need to change electrode, realizes component processing once-forming, and then increases working (machining) efficiency and machining accuracy.
Preferably, connecting rod, securing member and electrode clamping plate can also be comprised.Arrange connecting hole in the lower end of electrode body, this connecting hole is used for connecting electrode body and connecting rod, and wherein, connecting rod TBE (threaded both ends), be conveniently connected with electromachining equipment, connecting rod and electrode body are fixed by the electrode clamping plate of securing member and electromachining equipment.
Electrode body described in the utility model selects the raw material of high conductivity electrode graphite to make, and this raw material has good electric conductivity and moderate mechanical strength, is suitable as electrode body material.
Electrode body described in the utility model, connecting rod, securing member and electrode clamping plate can select the arbitrary raw material in graphite, stainless steel or alloy to make.
According to the multi-cavity type electric machining graphite electrode that the utility model provides, there is following beneficial effect:
(1) described multi-cavity type electric machining graphite electrode appearance and size is stablized, high to the machining accuracy of pottery;
(2) described multi-cavity type electric machining graphite electrode can be used as single-cavity and cavity uses, and thus can reach the high efficiency of ceramic electrical processing;
(3) manufacturing process is simple, can obtain described multi-cavity type electric machining graphite electrode, have industrial applicibility by small shaping processing technology;
(4) can to give full play to machining graphite electrode material density little for described multi-cavity type electric machining graphite electrode, and fusing point is high, the advantage that the efficiency of heating surface is high;
Accompanying drawing explanation
The structural front view of the electrode body of the multi-cavity type electric machining graphite electrode of a kind of preferred embodiment of Fig. 1 the utility model;
Fig. 2 is the A-A direction view of Fig. 1;
Fig. 3 is the upward view of Fig. 2.
The front view of the Standard figure of the multi-cavity type electric machining graphite electrode of a kind of preferred embodiment of Fig. 4 the utility model;
Wherein: 1-electrode body, 2-connecting rod, 3-securing member, 4-electrode clamping plate, 11-first die cavity, 12-second die cavity, 13-the 3rd die cavity, 14-the 4th die cavity, 15-the 5th die cavity, B represents datum level.
Detailed description of the invention
Be described in detail below by the utility model, feature of the present utility model and advantage will illustrate along with these and become more clear, clear and definite.
Word " exemplary " special here means " as example, embodiment or illustrative ".Here need not be interpreted as being better than or being better than other embodiment as any embodiment illustrated by " exemplary ".Although the various aspects of embodiment shown in the drawings, unless otherwise indicated, accompanying drawing need not be drawn in proportion.
A kind of working (machining) efficiency and precision much higher cavate electric machining graphite electrode disclosed in the utility model.
In a preferred embodiment of the present utility model, as shown in figures 1-4, provide a kind of multi-cavity type electric machining graphite electrode, this electrode assembly comprises electrode body 1; Connecting rod 2 and securing member 3 can also be comprised.
Wherein, described electrode body 1 is tabular, the profile of the utility model to electrode body 1 is not particularly limited to, it can be cuboid, square, cylinder, Elliptic Cylinder, irregular body or other arbitrary shape, its concrete shape can be determined according to the shape need of required tool member, in a detailed description of the invention of the present utility model, as shown in figures 1-4, it is rectangle.
This electrode body 1 is offered the first die cavity 11, second die cavity the 12, three die cavity 13, the 4th die cavity 14 and the 5th die cavity 15 from bottom to top successively.Wherein the first die cavity 11 and the second die cavity 12 are roughing operation machined electrode; 3rd die cavity 13 and the 4th die cavity 14 are semifinishing operation machined electrode; 5th die cavity 15 is finishing step machined electrode.Therefore, the structure arranged by the utility model, can realize the roughing of ceramic material, in be worked into fine finishining, process does not need to change electrode, realizes component processing once-forming, and then increases working (machining) efficiency and machining accuracy.
The cavity structure of this graphite electrode contains roughing, semifinishing, fine finishining three kinds of structures simultaneously, can realize the processing of the roughing of same structure part, semifinishing, fine finishining three phases without the need to changing electrode; This cavity electrode decreases the locating and machining error produced because changing Different electrodes simultaneously, and decreases the electrode clamping time, therefore significantly can improve working (machining) efficiency and the machining accuracy of structural member:.
Meanwhile, the die cavity in this electrode body 1 can be made up of single-cavity and cavity; And the cavity shape in electrode body 1 can be concave surface, convex surface, curved surface, cambered surface, cylinder, cuboid, square, ellipsoid or irregular shape surface.The cavity shape profile of electrode body 1 is processed crescent pottery negative camber is the former of formpiston; Namely the shape profile of die cavity mates with the contour structures of work piece, is the former of work piece formpiston.
Arrange connecting hole in the upper end of electrode body 1, this connecting hole is used for connecting electrode body 1 and connecting rod 2, and wherein, connecting rod 2 TBE (threaded both ends), is conveniently connected with electromachining equipment.Connecting rod 2 is fixed by securing member 3 and electromachining equipment with electrode body 1.
Electrode body 1 described in the utility model selects the raw material of high conductivity electrode graphite to make, and this raw material has good electric conductivity and moderate mechanical strength, is suitable as electrode body material.
Electrode body 1 described in the utility model, connecting rod 2 and securing member 3 select the arbitrary raw material in graphite, stainless steel or alloy or its combined material to make.
The manufacture of the utility model to described graphite electrode is not particularly limited to, as above-mentioned material obtained by process equipments such as engraving machine, sintering process and machining centers.
When this calandria individual layer uses, preferably select graphite, alloy or its combination link processed, changeover portion and securing member, when this calandria stacking uses, preferably select pottery link processed, changeover portion and securing member.
More than in conjunction with detailed description of the invention and exemplary example, the utility model has been described in detail, but these explanations can not be interpreted as restriction of the present utility model.It will be appreciated by those skilled in the art that when not departing from the utility model spirit and scope, can carry out multiple equivalencing, modification or improvement to technical solutions of the utility model and embodiment thereof, these all fall in scope of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (8)
1. a multi-cavity type electric machining graphite electrode, is characterized in that, this machined electrode comprises electrode body (1); Described electrode body (1) is tabular, this electrode body (1) is offered the first die cavity (11), the second die cavity (12) from bottom to top successively, 3rd die cavity (13), the 4th die cavity (14) and the 5th die cavity (15), wherein the first die cavity (11) and the second die cavity (12) are processed for roughing operation; 3rd die cavity (13) and the 4th die cavity (14) are processed for semifinishing operation; 5th die cavity (15) is processed for finishing step; First die cavity (11), the second die cavity (12), the shape profile of the 3rd die cavity (13), the 4th die cavity (14) and the 5th die cavity (15) mates with the contour structures of work piece, be the former of work piece formpiston, the material of electrode body is graphite.
2. a kind of multi-cavity type electric machining graphite electrode according to claim 1, is characterized in that, the profile of electrode body (1) is rectangle, square, cylinder, Elliptic Cylinder.
3. a kind of multi-cavity type electric machining graphite electrode according to claim 1, is characterized in that, the first die cavity, the second die cavity, and the cavity shape profile of the 3rd die cavity, the 4th die cavity and the 5th die cavity is processed crescent pottery negative camber is the former of formpiston.
4. a kind of multi-cavity type electric machining graphite electrode according to claim 1, it is characterized in that, this machined electrode also comprises: connecting rod (2), securing member (3) and electrode clamping plate (4).
5. a kind of multi-cavity type electric machining graphite electrode according to claim 4, is characterized in that, arrange connecting hole in the lower end of electrode body 1, this connecting hole is used for connecting electrode body 1 and connecting rod (2), wherein, connecting rod (2) TBE (threaded both ends), is connected with electromachining equipment.
6. a kind of multi-cavity type electric machining graphite electrode according to claim 4, is characterized in that, connecting rod (2) is fixed by securing member (3) and electrode body (1) and electromachining equipment electrode clamping plate (4).
7. a kind of multi-cavity type electric machining graphite electrode according to claim 4, it is characterized in that, described electrode body (1), connecting rod (2) and securing member (3) can select the arbitrary raw material in graphite, stainless steel or alloy to make.
8. a kind of multi-cavity type electric machining graphite electrode according to claim 4, it is characterized in that, described electrode body selects the raw material of high conductivity electrode graphite to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686008.3U CN204308354U (en) | 2014-11-15 | 2014-11-15 | A kind of multi-cavity type electric machining graphite electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420686008.3U CN204308354U (en) | 2014-11-15 | 2014-11-15 | A kind of multi-cavity type electric machining graphite electrode |
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| CN204308354U true CN204308354U (en) | 2015-05-06 |
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| CN201420686008.3U Active CN204308354U (en) | 2014-11-15 | 2014-11-15 | A kind of multi-cavity type electric machining graphite electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160567A (en) * | 2017-07-04 | 2017-09-15 | 广东工业大学 | A kind of fine needle-like graphite electrode processing method |
| CN107263744A (en) * | 2017-07-04 | 2017-10-20 | 广东工业大学 | A kind of ultra-thin-wall graphite electrode processing method |
| CN113427092A (en) * | 2021-05-27 | 2021-09-24 | 中国航发南方工业有限公司 | Electric spark machining method for special-shaped concave cavity |
-
2014
- 2014-11-15 CN CN201420686008.3U patent/CN204308354U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160567A (en) * | 2017-07-04 | 2017-09-15 | 广东工业大学 | A kind of fine needle-like graphite electrode processing method |
| CN107263744A (en) * | 2017-07-04 | 2017-10-20 | 广东工业大学 | A kind of ultra-thin-wall graphite electrode processing method |
| CN113427092A (en) * | 2021-05-27 | 2021-09-24 | 中国航发南方工业有限公司 | Electric spark machining method for special-shaped concave cavity |
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