CN201136075Y - Dentiform electric spark expanding and processing rotating electrode by local directional inner spraying liquid-feeding of sparking liquid - Google Patents
Dentiform electric spark expanding and processing rotating electrode by local directional inner spraying liquid-feeding of sparking liquid Download PDFInfo
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- CN201136075Y CN201136075Y CNU2007200586526U CN200720058652U CN201136075Y CN 201136075 Y CN201136075 Y CN 201136075Y CN U2007200586526 U CNU2007200586526 U CN U2007200586526U CN 200720058652 U CN200720058652 U CN 200720058652U CN 201136075 Y CN201136075 Y CN 201136075Y
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Abstract
The utility model relates to a tooth-shaped electric spark generating processing rotary electrode, spark liquid of which sprays inwards and provides liquid in a local orientation way, and the rotary electrode comprises a tool electrode and a local orientation inward spraying structure which are connected through a sealing felt. The tool electrode comprises three parts: one end is a tooth-shaped section, the other end is a taper section, and the middle part is a column section. The local orientation inward spraying structure comprises the sealing felt, a felt fixed seat, a water entry steel tube and a fixed shoe plate, wherein, the sealing felt is fixed on the sealing felt which is connected with the water entry steel tube and is fixed through a locknut, and a compression spring is arranged between the locknut and the fixed shoe plate. The rotary electrode effectively solves the problems of the processing and liquid feed, and the rotary electrode has the advantages of stable manufacturing procedure, uniform discharge, notable heat rejection and deslagging, stable liquid feeding, no flow force influence and no vibration.
Description
Technical field
The utility model belongs to spray apparatus field in the directed feed flow of machine-building, and the profile of tooth electric spark generate of spray feed flow is processed rotation electrode in the particularly a kind of spark liquid local orientation.
Background technology
In spark machined, existing spark liquid supply mode mainly contains following several at present:
Immersion way: when more shallow, soak in electric spark liquid workpiece and tool-electrode working portion and working region for working depth.It is residual that shortcoming is that spark machined product, slag, molten bits are easy to, and is difficult for getting rid of, and causes " secondary discharge " easily, lowers efficiency, and usually adopts regularly the way of cutter lifting to get rid of product.
Liquid-charging type: be divided into outside towards liquid and interior spray towards liquid, the deslagging effect is all good than immersion way, and is outside controlled poor towards the liquid flow direction, is difficult for for darker corner's deslagging, strengthens liquid supply pressure and may cause electrode vibration, destroy machining accuracy; In spray during towards liquid, pressure spark liquid enters by the tool pipe electrode interior, liquid can be got rid of residue clean thorough through flowing out from pipe electrode and the workpiece gap between machining hole behind the machining area more up hill and dale.Spark liquid flows out to flowing all around in managing in the process, can not realize directed flow as required.Can reduce the operating pressure of spark liquid in some cases, the underfed that perhaps needs.
Summary of the invention
Bigger profile of tooth chip removal has some setbacks at existing electric spark generate processing aspect ratio, feed flow is insufficient, and the purpose of this utility model is to provide the profile of tooth electric spark generate of spray feed flow in a kind of spark liquid local orientation to process rotation electrode.This electrode makes the direct useful effect of electric spark working solution in the discharge machining area, improves working (machining) efficiency, improves machining accuracy, reduces surface roughness.
This electrode also can be applicable to Special Working Technology, as, the synchronous conjugation internal thread machining of inner surface spline, internal gear, internal thread, electric spark that electrolysis generate processing aspect ratio is big, mixed powder electric spark fine finishining etc. provide effective tool construction design, drainage set.
This electrode also can be applicable to other machining similar applications, and promptly revolving meber need provide the liquid spray application field of fixing a certain direction, as: spray cooling fluid, drilling prospection engineering etc. in the internal grinding emery wheel.
The utility model is achieved by the following technical solution: the profile of tooth electric spark generate processing rotation electrode of spray feed flow in a kind of spark liquid local orientation comprises and sprays structure in tool-electrode (7) and the local orientation; The spray structure is connected by sealing felt (21) in described tool-electrode (7) and the local orientation.
Described tool-electrode (7) comprises three parts, and an end is that profile of tooth section (a), the other end are conical section (c), and mid portion is cylindrical section (b); Be provided with row's jet apertures (28) in each tooth root groove of described tool-electrode profile of tooth section (a), the equidistant axial arranging of described every row's jet apertures (28), each jet apertures (28) is vertical with tool-electrode (7) central shaft, each jet apertures (28) communicates with the deep hole (29) that is parallel to tool-electrode (7) central shaft, one end of deep hole (29) is provided with plug (31) interference fit seal, the radially inlet opening (30) that the other end and its diameter etc. are big communicates, and described radially inlet opening (30) is located at the cylindrical section (b) of tool-electrode (7).
The spray structure comprises sealing felt (21), felt holder (22), entry steel pipe (25) and fixed support plate (26) in the described local orientation, described sealing felt (21) is fixed on the felt holder (22), felt holder (22) is connected with entry steel pipe (25), felt holder (22) is fixing by locking nut (23), and compression spring (24) is set between locking nut (23) and the fixed support plate (26).
In order to realize the utility model better, described every row's jet apertures (28) is 9 jet apertures.Described sealing felt (21) is fixed on the felt holder (22) by embedding or bonding way.
Described felt holder (22) and entry steel pipe (25) are by being threaded and being locked by locking nut (23).
The utlity model has following characteristics:
1, the profile of tooth electric spark generate processing rotation electrode of spray feed flow in the spark liquid of the present utility model local orientation, no matter whether instrument turns round, one discharge a fluid stream of electrode ejection sprays in vertical plane all the time from the top down, liquid effectively arrives the processing region of discharge, thereby keeps elevated pressures and sufficient flow.
2, the jet apertures of equidistant axial arranging and axially deep hole intersect connect and with other mutual disconnected tool-electrode structures: the tool-electrode of electric spark generate internal gear processing is an external gear, every row's jet apertures is opened in each tooth root rooved face, by a deep hole that parallels to the axis one row's jet apertures is communicated with, this deep hole one end has the plug interference fit seal, and the radially inlet opening that the other end and its diameter etc. are big communicates.
3, the exterior arc surface of tool-electrode middle circle shell of column and the local way of contact of sealing felt holder: felt holder and felt present square structure, form local the contact with the outer round surface that the radially inlet opening of tool-electrode is located, be that tool-electrode forwards any position to, can guarantee to have at least 3 inlet openings to communicate, thereby guarantee the continuous supply of spark liquid with felt holder inner chamber.And 3 inlet openings having only nethermost position just can have spark liquid to enter, and reaching nethermost 3 row's jet apertures (row has nine apertures, and is uniform) has spark liquid to eject, and realizes the effective feed flow of local orientation.Cremate liquid just can be supplied with by continuously-directional like this, promptly cremate liquid can only from 3 of tool-electrode intermediate cylindrical part bottom position radially the inlet opening enter the deep hole that is connected separately, eject by nethermost 3 row's jet apertures again, realize the effective feed flow of local orientation.
4, dual floating structure: the tool-electrode revolution, and sealing felt and felt holder maintain static, the leakage problem of movable sealing is solved by two floating structures.The pre-pressing force of compression spring allows assemblies such as sealing felt, felt holder, locking nut, entry steel pipe press to the electrode contact surface all the time when electrode rotates, and makes the sealing felt remain good the contact with tool-electrode.Sealing felt self has certain compressibility and floatability, can compensating electrode structure contact surface local uneven and avoid leaking.
The utility model compared with prior art has following advantage and beneficial effect:
(1) feed flow is abundant, the pressure abundance, deslagging, heat-sinking capability are strong: common feed flow sprays along 360 ° of directions of tool-electrode, increases outlet diameter, not only makes liquid supply pressure reduce, reduce flow velocity, reduce the effective discharge of working region, and the direction confusion of pouring down of deslagging, unfavorable deslagging and used working solution to flow out, liquid circulation velocity reduces, the radiating effect variation.The above-mentioned shortcoming that can overcome common feed flow is sprayed by the local orientation that the utility model concentrates on the working region, can be described as " steel is used on the blade ".
(2) better solve movable sealing problem, nothing leakage: dual floating structure makes movable sealing respond well, and interface does not have the leakage liquid ejection, keep-ups pressure on the one hand, and the work-yard is clean on the other hand, does not pollute motor.
(3) be convenient to the motion of viewing tool electrode and piece pole: because local orientation sprays, in the fabrication cycles process, can clearly watch machined surface, provide convenience for adjusting parameter.
(4) adaptability is strong, adapts to the electrode of different-diameter: when the local way of contact makes tool-electrode vary in diameter or contact site vary in diameter, can adopt assemblies such as same set of felt, felt holder, compression spring, steel pipe.
(5) versatility is good: device also can be used for the bigger situations of occasion, particularly aspect ratio such as other electric spark generate processing (spline, screw thread, internal tooth synchronous pulley), mixed powder electric spark fine finishining, also can be used for the electrolyte feed flow of Electrolyzed Processing.
(6) device is simplified: cooperate the special tool(s) electrode, this liquid feed device is simple in structure, and component count is few, and is with low cost, and processing unit (plant) is easy; It is simple and easy to do that adjustment is installed.
This device effectively solves big spark machined feed flow of aspect ratio and deslagging bits problem, make process steadily, discharge evenly, heat extraction, deslagging effect are remarkable, feed flow itself steadily, aneroid dynamic effect, friction.
Description of drawings
Fig. 1 is the structural representation of rotation electrode of the present utility model.
Fig. 2 is a tool-electrode structural representation of the present utility model.
Fig. 3 is the left projection view of the tool-electrode of Fig. 2.
Wherein: the 7-tool-electrode; 21-seals felt; 22-felt holder; The 23-locking nut; 24-compresses spring; 25-entry steel pipe; The 26-fixed support plate; 27-pressure spark liquid flexible pipe; The 28-jet apertures; The 29-deep hole; The 30-inlet opening; The 31-plug; A-profile of tooth section; The b-cylindrical section; The c-conical section.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, the profile of tooth electric spark generate processing rotation electrode of spray feed flow comprises spray structure in tool-electrode 7 and the local orientation in the spark liquid local orientation; The spray structure is connected by sealing felt 21 in described tool-electrode 7 and the local orientation.
As Fig. 2, shown in Figure 3, described tool-electrode 7 comprises three parts, and an end is that profile of tooth section a, the other end are conical section c, and mid portion is cylindrical section b; Be provided with row's jet apertures 28 in each tooth root groove of described tool-electrode profile of tooth section a, every row's jet apertures 28 has 9 jet apertures.Described every row's jet apertures 28 equidistant uniform axial settings, each jet apertures 28 is vertical with tool-electrode 7 central shafts, each jet apertures 28 is communicated with the deep hole 29 that is parallel to tool-electrode 7 central shafts, one end of deep hole 29 is provided with plug 31 interference fit seal, the radially inlet opening 30 that the other end and its diameter etc. are big is connected, and radially inlet opening 30 is located at the cylindrical section b of tool-electrode 7.Tool-electrode 7 number of teeth z1, the deep hole 29 of z1 number connect with row's jet apertures 28 in the teeth groove, with blasthole 30 UNICOMs of right-hand member z1 number, the plug 31 and the deep hole 29 left end interference fit of z1 number form the independent water-flowing path of z1 number thus.
As shown in Figure 1, the spray structure comprises sealing felt 21, felt holder 22, entry steel pipe 25 and fixed support plate 26 in the described local orientation.Described sealing felt 21 is fixed on the felt holder 22 by embedding or bonding way.Described felt holder 22 and entry steel pipe 25 are by being threaded and by locking nut 23 lockings.Felt holder 22 is fixing by locking nut 23, and compression spring 24 is set between locking nut 23 and the fixed support plate 26.Entry steel pipe 25 is connected with pressure spark liquid flexible pipe 27.Hole on entry steel pipe 25 and the fixed support plate 26 is a matched in clearance.
During tool-electrode 7 revolutions, sealing felt 21 and felt holder 22 are motionless, the leakage problem of movable sealing is solved by two floating structures, the pre-pressing force of compression spring 24 makes assemblies such as sealing felt 21, felt holder 22, locking nut 23, entry steel pipe 25 press to the electrode contact surface all the time when electrode rotates, and makes sealing felt 21 remain good the contact with tool-electrode 7.Sealing felt 21 self has certain compressibility and floatability, can compensating electrode structure contact surface local uneven and avoid leaking.
In order to implement better, below some needs explanation:
1. deep hole 29 is processed and plugs 31: electrode material is red copper or brass, common deep hole 29 can adopt mechanical drilling to finish, if aspect ratio is especially big, can adopt spray electric discharge machining method realization in the pipe electrode, pipe electrode can be bought in general mold tool market.The sealing of left end can be adopted cylindrical plug or steel ball 31, and interference is pressed into just can.
2. felt is fixed: sealing felt 21 can adopt water-fast gluing connecing with felt holder 22; Also can adopt the groove of on felt holder 22, opening up-small and down-big four sides UNICOM, will seal felt 21 and embed wherein.
3. inlet opening 30 needs chamfering: in order to reduce wearing and tearing, inlet opening 30 necessary chamferings, the deburring of rotary electrode to fixing seal felt 21.
4. felt holder 22 is repaiied arc: for guaranteeing sealing felt 21 pressurized degree unanimity all around, felt holder 22 can correction of the flank shape become radius of curvature and the arc surface that the tool-electrode radius equates, reaches better sealing and guide effect.
5. entry steel pipe 25 outer surfaces and fixed support plate 26 are slidingly matched: the plate hole of entry steel pipe 25 surfaces and fixed support plate 26 need be done polishing, cylindricity is done specification requirement, and fit clearance is controlled at 0.03～0.05mm.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1, the profile of tooth electric spark generate processing rotation electrode of spray feed flow in a kind of spark liquid local orientation is characterized in that: described rotation electrode comprises and sprays structure in tool-electrode (7) and the local orientation; The spray structure is connected by sealing felt (21) in described tool-electrode (7) and the local orientation;
Described tool-electrode (7) comprises three parts, and an end is that profile of tooth section (a), the other end are conical section (c), and mid portion is cylindrical section (b); Be provided with row's jet apertures (28) in each tooth root groove of described tool-electrode profile of tooth section (a), the equidistant axial arranging of described every row's jet apertures (28), each jet apertures (28) is vertical with tool-electrode (7) central shaft, each jet apertures (28) communicates with the deep hole (29) that is parallel to tool-electrode (7) central shaft, one end of deep hole (29) is provided with plug (31) interference fit seal, the radially inlet opening (30) that the other end and its diameter etc. are big communicates, and described radially inlet opening (30) is located at the cylindrical section (b) of tool-electrode (7);
The spray structure comprises sealing felt (21), felt holder (22), entry steel pipe (25) and fixed support plate (26) in the described local orientation, described sealing felt (21) is fixed on the felt holder (22), felt holder (22) is connected with entry steel pipe (25), felt holder (22) is fixing by locking nut (23), and compression spring (24) is set between locking nut (23) and the fixed support plate (26).
2, the profile of tooth electric spark generate processing rotation electrode of spray feed flow in a kind of spark liquid according to claim 1 local orientation, it is characterized in that: described every row's jet apertures (28) is 9 jet apertures.
3, the profile of tooth electric spark generate processing rotation electrode of spray feed flow in a kind of spark liquid according to claim 1 local orientation is characterized in that: described sealing felt (21) is by embedding or bonding way is fixed on the felt holder (22).
4, the profile of tooth electric spark generate processing rotation electrode of spray feed flow in a kind of spark liquid according to claim 1 local orientation is characterized in that: described felt holder (22) and entry steel pipe (25) are by being threaded and being locked by locking nut (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200586526U CN201136075Y (en) | 2007-10-24 | 2007-10-24 | Dentiform electric spark expanding and processing rotating electrode by local directional inner spraying liquid-feeding of sparking liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200586526U CN201136075Y (en) | 2007-10-24 | 2007-10-24 | Dentiform electric spark expanding and processing rotating electrode by local directional inner spraying liquid-feeding of sparking liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201136075Y true CN201136075Y (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200586526U Expired - Fee Related CN201136075Y (en) | 2007-10-24 | 2007-10-24 | Dentiform electric spark expanding and processing rotating electrode by local directional inner spraying liquid-feeding of sparking liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201136075Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744158A (en) * | 2019-10-31 | 2020-02-04 | 华南理工大学 | Electrolytic finish machining method for micro-wire gear |
| CN111168169A (en) * | 2020-01-10 | 2020-05-19 | 安徽工业大学 | Electrolytic cathode, cathode processing method, electrolytic system containing cathode and system using method |
| CN112404617A (en) * | 2020-11-18 | 2021-02-26 | 上海交通大学 | Electricity liquid allies oneself with confession device |
| CN114734104A (en) * | 2021-12-31 | 2022-07-12 | 中国航空工业集团公司北京航空精密机械研究所 | Oil spraying device for deep hole inner side wall hole electric spark machining |
-
2007
- 2007-10-24 CN CNU2007200586526U patent/CN201136075Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744158A (en) * | 2019-10-31 | 2020-02-04 | 华南理工大学 | Electrolytic finish machining method for micro-wire gear |
| CN110744158B (en) * | 2019-10-31 | 2021-02-12 | 华南理工大学 | Electrolytic finish machining method for micro-wire gear |
| CN111168169A (en) * | 2020-01-10 | 2020-05-19 | 安徽工业大学 | Electrolytic cathode, cathode processing method, electrolytic system containing cathode and system using method |
| CN111168169B (en) * | 2020-01-10 | 2021-03-16 | 安徽工业大学 | Electrolytic cathode, cathode processing method, electrolytic system containing cathode and system using method |
| CN112404617A (en) * | 2020-11-18 | 2021-02-26 | 上海交通大学 | Electricity liquid allies oneself with confession device |
| US20220226917A1 (en) * | 2020-11-18 | 2022-07-21 | Shanghai Jiao Tong University | Electro-hydraulic combined device |
| US11794264B2 (en) * | 2020-11-18 | 2023-10-24 | Shanghai Jiao Tong University | Electro-hydraulic combined device |
| CN114734104A (en) * | 2021-12-31 | 2022-07-12 | 中国航空工业集团公司北京航空精密机械研究所 | Oil spraying device for deep hole inner side wall hole electric spark machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20111024 |