CN206966811U - A kind of selfreparing tool-electrode turning formula electric discharge device - Google Patents

A kind of selfreparing tool-electrode turning formula electric discharge device Download PDF

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Publication number
CN206966811U
CN206966811U CN201720269808.9U CN201720269808U CN206966811U CN 206966811 U CN206966811 U CN 206966811U CN 201720269808 U CN201720269808 U CN 201720269808U CN 206966811 U CN206966811 U CN 206966811U
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China
Prior art keywords
tool
electrode
workpiece
electric discharge
abrasive particle
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Expired - Fee Related
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CN201720269808.9U
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Chinese (zh)
Inventor
刘江文
杨逍潇
郭钟宁
陈少国
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Guangdong University of Technology
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Guangdong University of Technology
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Abstract

The utility model discloses a kind of selfreparing tool-electrode turning formula electric discharge device, mainly includes tool-electrode and metal derby;Wherein, tool-electrode includes metallic matrix and the abrasive grain layer of metal base surface is consolidated in by conductive abrasive particle bonding agent;Tool-electrode and workpiece can rotate around own axes, and tool-electrode can along perpendicular to the direction of axis of workpiece close to or away from workpiece;Metal derby is pressed on the abrasive grain layer of tool-electrode;When in use, the tool-electrode grinding metal derby of rotation, so as to forming metal adhesion layers on the abrasive grain layer that caused chip will adhere to tool-electrode, electro-discharge machining is carried out using the adhesion layer, spark effect in process can cause the loss of adhesion layer, but the adhesion layer of loss will be ground metal derby again to obtain supplement reconstruction by tool-electrode, so that the geometry of tool-electrode is recovered in time, this undoubtedly extends the service life of tool-electrode, improves machining accuracy and reduces processing cost.

Description

A kind of selfreparing tool-electrode turning formula electric discharge device
Technical field
Machining equipment technical field is the utility model is related to, more particularly to a kind of selfreparing tool-electrode turning formula is put Electric machining device.
Background technology
Axle (or set) class part is most common vital part in engineering goods, the height and surface quality of its machining accuracy Quality directly affect the performance of product.The rotary surface of these parts is mostly processed by way of turning.
Traditional turnery processing is to go to cut softer object using the higher object of hardness as cutter, passes through extruding Method is by the unnecessary material removal on workpiece to be processed surface, so that workpiece reaches defined geometry, dimensional accuracy With the processing method of surface quality.With the development of science and technology, the material with premium properties is applied in numerous Advanced Equipments, Such as high temperature alloy, stainless steel, titanium alloy, unimach, the machinability of this kind of material are poor, it is difficult to using traditional Method carries out the turnery processing of part, and be thus born unconventional method for turning.
Unconventional method for turning mainly has electrochemistry turning and electric spark turning etc..Electrochemistry turnery processing is to pass through electricity The metal removal in region to be processed is made workpiece reach defined geometry, dimensional accuracy and surface quality by the method for chemistry Processing method.Although its in process negative electrode it is lossless, without macroscopical cutting force, suitably process various hard-cutting materials zero Part and thin-wall part, it is high in machining efficiency, surface quality is good the advantages that, easily there is dispersion corrosion in but the bad control of its locality, It is unfavorable for ensureing machining accuracy.Electric spark turnery processing is to spark over to add by using the electrode pair workpiece of standard shape Work, so that by the metal removal in region to be processed, workpiece is set to reach adding for defined geometry, dimensional accuracy and surface quality Work method.Although this method can process the conductive material of any hardness, because the process is electro-discharge machining, electrode is being processed Itself can also sustain damage while workpiece, and this undoubtedly will greatly influence machining accuracy and crudy, therefore, how provide A kind of processing for superhard material has:Machining accuracy is high, the method for turning that service life is long, processing cost is low turns into Those skilled in the art's important technological problems urgently to be resolved hurrily.
Utility model content
In view of this, the utility model provides a kind of selfreparing tool-electrode turning formula electric discharge device, to reach The geometry of tool-electrode is recovered in time in process, improve machining accuracy and crudy, extend work Have the service life length of electrode, reduce the purpose of processing cost.
To achieve the above object, the utility model provides following technical scheme:
A kind of selfreparing tool-electrode turning formula electric discharge device, mainly includes:
Tool-electrode, including metallic matrix and the abrasive grain layer for being fixedly arranged at the metal base surface, the abrasive grain layer bag Abrasive particle is included, the abrasive particle is consolidated in the tool base by abrasive particle bonding agent, and the abrasive particle bonding agent is conductive material;
Metal derby, it is pressed on the abrasive grain layer;
The tool-electrode and workpiece to be processed can rotate on each axis, and tool-electrode can be along perpendicular to workpiece spindle The direction of line is close or away from workpiece.
Preferably, the metal derby is aluminium block or copper billet.
Preferably, the abrasive particle gathers on the inside of the abrasive grain layer and surface.
Preferably, the abrasive particle can be made up of diamond, carborundum, aluminum oxide or cubic boron nitride.
Preferably, the abrasive particle can be rhombus, triangle or irregular polygon structure.
Preferably, the tool-electrode rotates under first driving means driving, the output end of the first driving means It is connected by rotary shaft with the tool-electrode.
Preferably, in addition to load carrier, the load carrier includes workbench and be arranged at can on the workbench The motion platform and its control system of horizontal and vertical movement.
Preferably, in addition to it is used for the tank for holding working solution, it is internally provided with for clamping the workpiece to be processed Fixture, the tank is arranged on the motion platform, and the open top of the tank is higher than the top of the fixture.
It can be seen from the above technical proposal that a kind of selfreparing tool-electrode turning formula electric discharge provided by the utility model adds Frock is put, and mainly includes tool-electrode and metal derby;Wherein, tool-electrode includes metallic matrix and passes through conductive abrasive particle knot Mixture is consolidated in the abrasive grain layer of metal base surface, and tool-electrode and workpiece can rotate around own axes, and tool-electrode can With along perpendicular to the direction of axis of workpiece close to or away from workpiece;Metal derby is pressed on the abrasive grain layer of tool-electrode;
When in use, the rotating shaft of tool-electrode is extremely connected by the first brush 13 with the one of electrode 9, and workpiece to be processed passes through Second brush 14 is extremely connected with the another of electrode 9, and tool-electrode rotates around own axes, and area I is established in tool-electrode adhesion layer Metal adhesion layers are formed in the gap that the metal fragment as caused by abrasive particle grinding metal derby will adhere to abrasive grain layer Abrasive Grain, and Pass through with the rotation of tool-electrode up to tool-electrode adhesion layer shaping area II and reach processing district III, and in processing district III to work Part carries out electro-discharge machining.In electric discharge machining process, metal adhesion layers can be depleted, and abrasive particle will be exposed to tool-electrode table again Face, it is allowed to regain grinding capacity.With the rotation of tool-electrode, ground after tool-electrode adhesion layer area IV to be compensated Grain reaches tool-electrode adhesion layer and establishes area I, establishes area's I abrasive grain layers in tool-electrode adhesion layer and metal derby is ground again Cut so that the metal adhesion layers consumed obtain supplement and rebuild, i.e. loss of the tool-electrode in electric discharge machining process can obtain To timely repairing, the geometry of tool-electrode is set to be recovered in time, so as to extend the service life of tool-electrode, The influence to Workpiece Machining Accuracy due to tool electrode loss is avoided, ensures workpiece quality, reduces processing cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structure for selfreparing tool-electrode turning formula electric discharge device that the utility model embodiment provides Schematic diagram;
Fig. 2 is a kind of the cross-sectional of selfreparing tool-electrode turning formula electric discharge device that the utility model embodiment provides Schematic diagram;
Fig. 3 is the partial enlargement structural representation at A in Fig. 2;
Fig. 4 is a kind of vertical profile for selfreparing tool-electrode turning formula electric discharge device that the utility model embodiment provides Schematic diagram.
Embodiment
The utility model provides a kind of selfreparing tool-electrode turning formula electric discharge device, to reach extension instrument electricity Pole service life, machining accuracy is improved, lift crudy, reduce the purpose of processing cost.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-Fig. 3 is referred to, Fig. 1 is a kind of selfreparing tool-electrode turning formula electric discharge that the utility model embodiment provides The structural representation of processing unit (plant), Fig. 2 are a kind of selfreparing tool-electrode turning formula electric discharge that the utility model embodiment provides The cross-sectional schematic diagram of processing unit (plant), Fig. 3 are the partial enlargement structural representation at A in Fig. 2.
The utility model embodiment provides a kind of selfreparing tool-electrode turning formula electric discharge device, mainly including work Have electrode 1 and metal derby 2.
Wherein, tool-electrode 1 includes metallic matrix 11 and is fixedly arranged at the abrasive grain layer 12 on the surface of metallic matrix 11, abrasive grain layer 12 include abrasive particle 12a, and abrasive particle 12a is consolidated in tool base 11 by abrasive particle bonding agent, and abrasive particle bonding agent is conductive material, Tool-electrode 1 and workpiece 3 can be rotated around own axes and tool-electrode can along perpendicular to the direction of axis of workpiece it is close or Person is away from workpiece;Metal derby 2 is pressed on its abrasive grain layer 12.
Compared with prior art, a kind of selfreparing tool-electrode turning formula electro-discharge machining that the utility model embodiment provides Device, when in use, the rotating shaft of tool-electrode are extremely connected by the first brush 13 with the one of electrode 9, and workpiece to be processed passes through Two brushes 14 are extremely connected with the another of electrode 9, and tool-electrode rotates around own axes, tool-electrode adhesion layer establish area I by Metal adhesion layers are formed in the gap that metal fragment caused by abrasive particle grinding metal derby will adhere to abrasive grain layer Abrasive Grain, and with The rotation for tool-electrode reaches processing district III by tool-electrode adhesion layer shaping area II, and workpiece is entered in processing district III Row electro-discharge machining.In electric discharge machining process, metal adhesion layers can be depleted, and abrasive particle will be exposed to tool-electrode surface again, It is allowed to regain grinding capacity.With the rotation of tool-electrode, in the abrasive particle after tool-electrode adhesion layer area IV to be compensated Reach tool-electrode adhesion layer and establish area I, establish area's I abrasive grain layers in tool-electrode adhesion layer is ground to metal derby again, So that the metal adhesion layers consumed obtain supplement rebuild, i.e., loss of the tool-electrode in electric discharge machining process can obtain and When reparation, the geometry of tool-electrode is recovered in time, so as to extend the service life of tool-electrode, avoid Due to influence of the tool electrode loss to Workpiece Machining Accuracy, ensure workpiece quality, reduce processing cost.
In the utility model embodiment, metal derby forms the material of metal adhesion layers using soft easy grinding, than Such as copper, aluminium is made, and certainly, above-mentioned material is only one kind side of being preferable to carry out that the utility model embodiment provides Case, it is not limited thereto in practical operation, does not limit herein.
As can be seen that abrasive particle 12a, which is used to be ground with metal derby 2, produces metal fragment, abrasive particle 12a property in from the discussion above Can energy and state be directly connected to metal adhesion layers 5 and smoothly be formed, and ground effect can be caused to drop significantly after abrasive particle 12a losses It is low, it is unfavorable for the formation of metal adhesion layers 5.The reason for causing abrasive particle 12a to be lost, mainly has in frictional dissipation and friction process Caused substantial amounts of heat.Therefore, the effect of grinding is influenceed in order to avoid abrasive particle 12a loss, in the utility model embodiment, Abrasive particle 12a is made up of high-temperature wearable insulating materials, for example can use diamond, carborundum, aluminum oxide and cubic boron nitride Made Deng high-melting-point, wear-resisting and insulation material, abrasive particle 12a, Neng Goujin are made by using high-temperature wearable insulating materials Amount reduces abrasive particle 12a loss, ensures the smooth formation of metal adhesion layers 5.With the progress of processing, when instrument top layer abrasive particle is ground Damage is serious, and after losing grinding capacity, metal adhesion layers will be difficult to establish in time, spark discharge will abrasive particle bonding agent and workpiece it Between produce, in this case, spark discharge effect will remove the abrasive particle bonding agent of skim-coat abrasive particle, cause top layer Grain Falling Off, So that the new abrasive particle of bottom exposes tool surfaces, the dressing of implementation tool.
Further optimize above-mentioned technical proposal, in the utility model embodiment, abrasive particle 12a preferably there are sharp corners Structure, such as rhombus, triangle or irregular polygon structure.
Further optimize above-mentioned technical proposal, in the utility model embodiment, tool-electrode 1 is under drive device driving Rotation, the output end of drive device are connected by rotary shaft 4 with tool-electrode 1.
In the utility model embodiment, as shown in figure 1, tool-electrode and workpiece to be processed can rotate on each axis, And tool-electrode can along perpendicular to the direction of axis of workpiece close to or away from workpiece, metal derby is pressed on the mill of tool-electrode On granulosa.
In the utility model embodiment, referring to Fig. 4, Fig. 4 is a kind of selfreparing that the utility model embodiment provides The elevational schematic of tool-electrode turning formula electric discharge device, a kind of selfreparing tool-electrode turning formula electric discharge device is also Including load carrier 8, load carrier 8 include workbench 81 and be arranged on workbench 81 can horizontal and vertical movement motion Platform 82 and its control system 83.
In the utility model embodiment, as shown in Figure 4, a kind of selfreparing tool-electrode turning formula electric discharge device Also include being used for the tank 6 for holding working solution 10, it is internally provided with the fixture 7 for clamping the workpiece to be processed 3, described Tank 6 is arranged on the motion platform 82, and the open top of the tank 6 is higher than the top of the fixture 7.So, exist In electric discharge machining process, working solution 10 can be injected in tank 6, working solution 10 serves as discharge medium in electric discharge machining process. Working solution 10 can be deionized water.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (6)

1. a kind of selfreparing tool-electrode turning formula electric discharge device, it is characterised in that mainly include:
Tool-electrode (1), including metallic matrix (11) and the abrasive grain layer (12) for being fixedly arranged at the metallic matrix (11) surface, institute Stating abrasive grain layer (12) includes abrasive particle (12a), and the abrasive particle (12a) is rhombus, triangle or irregular polygon structure, described Abrasive particle (12a) is consolidated in the tool base (11) by abrasive particle bonding agent, and the abrasive particle bonding agent is conductive material, described Tool-electrode (1) rotates under first driving means driving, and the output end of the first driving means passes through rotary shaft (4) and institute Tool-electrode (1) is stated to be connected;
Metal derby (2), it is pressed on the abrasive grain layer (12);
The tool-electrode and workpiece to be processed can rotate on respective axis, and tool-electrode can be along perpendicular to axis of workpiece Direction close to or away from workpiece.
2. a kind of selfreparing tool-electrode turning formula electric discharge device according to claim 1, it is characterised in that described Metal derby be copper billet or aluminium block.
3. a kind of selfreparing tool-electrode turning formula electric discharge device according to claim 1, it is characterised in that described Abrasive particle (12a) gathers in the inside and surface of the abrasive grain layer (12).
4. a kind of selfreparing tool-electrode turning formula electric discharge device according to claim 1, it is characterised in that described Abrasive particle (12a) is made up of diamond, carborundum, aluminum oxide or cubic boron nitride.
5. a kind of selfreparing tool-electrode turning formula electric discharge device according to claim 1, it is characterised in that also wrap Include load carrier (8), the load carrier (8) include workbench (81) and be arranged on the workbench (81) can laterally and The motion platform (82) vertically moved, motion platform (82) are connected with control system (83).
6. a kind of selfreparing tool-electrode turning formula electric discharge device according to claim 5, it is characterised in that also wrap The tank (6) for holding working solution (10) is included, it is internally provided with the fixture (7) for clamping the workpiece to be processed (3), The tank (6) is arranged on the motion platform (82), and the open top of the tank (6) is higher than the fixture (7) Top.
CN201720269808.9U 2017-03-17 2017-03-17 A kind of selfreparing tool-electrode turning formula electric discharge device Expired - Fee Related CN206966811U (en)

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Application Number Priority Date Filing Date Title
CN201720269808.9U CN206966811U (en) 2017-03-17 2017-03-17 A kind of selfreparing tool-electrode turning formula electric discharge device

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Application Number Priority Date Filing Date Title
CN201720269808.9U CN206966811U (en) 2017-03-17 2017-03-17 A kind of selfreparing tool-electrode turning formula electric discharge device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109226778A (en) * 2018-11-15 2019-01-18 深圳创源航天科技有限公司 A kind of metal powder granulates preparation facilities
CN112222546A (en) * 2020-10-10 2021-01-15 南京农业大学 Low-frequency vibration assisted cut-in type electrolytic turning method and implementation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109226778A (en) * 2018-11-15 2019-01-18 深圳创源航天科技有限公司 A kind of metal powder granulates preparation facilities
CN109226778B (en) * 2018-11-15 2024-01-30 深圳创源航天科技有限公司 Metal powder particle preparation device
CN112222546A (en) * 2020-10-10 2021-01-15 南京农业大学 Low-frequency vibration assisted cut-in type electrolytic turning method and implementation device
CN112222546B (en) * 2020-10-10 2021-10-19 南京农业大学 Low-frequency vibration assisted cut-in type electrolytic turning method and implementation device

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