CN102794517A - Electrode for processing electrolytic slot of blisk and processing method - Google Patents
Electrode for processing electrolytic slot of blisk and processing method Download PDFInfo
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- CN102794517A CN102794517A CN2012102720099A CN201210272009A CN102794517A CN 102794517 A CN102794517 A CN 102794517A CN 2012102720099 A CN2012102720099 A CN 2012102720099A CN 201210272009 A CN201210272009 A CN 201210272009A CN 102794517 A CN102794517 A CN 102794517A
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Abstract
The invention relates to an electrode for processing electrolytic slot of a blisk and a processing method. The electrode comprises a working cathode device, an electrolyte bath, an HSK hydraulic clutch, a changeover disk, an electrolyte discharge valve, and an electrolyte overflow port, wherein the changeover disk, the electrolyte discharge valve, the electrolyte overflow port and the work cathode device are arranged on the bottom of the electrolyte bath; the HSK hydraulic clutch is connected with the electrolyte bath through the changeover disk; and the work cathode device comprises a bottom plate, a guide seal jacket, a work cathode and an insulation baffle. The electrode provided by the invention can ensure uniform profile allowance of the blisk after the slotting processing as much as possible to construct foundation for the further blisk profile fine processing. Compared with that of the existing processing method, the processing method provided by the invention has the advantages that the processing efficiency is up to 1mm/min and is improved by 50%, and the cost can be reduced by 50%.
Description
Technical field
The invention belongs to technical field of electrolysis processing, be specifically related to a kind of electrode and processing method that is used for the blisk electrolysis fluting processing of aviation field.
Background technology
The principle of Electrolyzed Processing is to utilize metal in electrolyte, the principle of anodic solution can take place and remove material, works the work piece into a kind of non-traditional cutting working method of type.During Electrolyzed Processing, instrument (cutter) is connected to dc source as negative electrode, workpiece as anode.In electrolyte, tool cathode is shifted to the workpiece anode with certain speed, between instrument and the workpiece charge-exchange takes place, and anode workpiece is dissolved, and is taken away by swiftly flowing electrolyte, thereby reaches point-device processing request.
Adopt extensive use on the advanced abroad aero-engine of electrolytic method processing blisk.Developed six Shaft and NC Machining Test electrolytic machine tools processing blisk like U.S. Ex-Cello-O company abroad; It adopts whole block type electrode, feeding angle to tilt 30 °; The electrolyte stream flowing mode adopts lateral flow type; Be that electrolyte flows into, flows out from the exhaust limit from the blade leading edge,, therefore can't process the narrow blisk of leaf passage because of it adopts whole block type electrode.Domestic Nanjing Aero-Space University adopts a kind of thin slice shaped electrode processing blisk leaf; Thin electrode is the distortion profile similar with blade profile; The mode that electrolyte adopts blade root to flow to blade tip, this method are suitable for the narrow blisk processing of leaf passage.But should technology still can not accomplish not have surplus processing, also need carry out finish-milling blade profile and runner.
Summary of the invention
According to the deficiency of prior art, the embodiment of the invention proposes a kind of electrode and processing method that is used for the processing of blisk electrolysis fluting, with the purpose that realizes that working (machining) efficiency is high, cost is low, crudy is good.
A kind of electrode that is used for the processing of blisk electrolysis fluting; Comprise work cathode assembly, electrolytic bath, HSK hydraulic chuck, switching base, electrolyte drain valve and electrolyte overfall; Wherein, the electrolytic bath bottom is provided with switching base, electrolyte drain valve, electrolyte overfall and work cathode assembly; The HSK hydraulic chuck is connected with electrolytic bath through the switching base;
Described work cathode assembly comprises base plate, water conservancy diversion sealing shroud, work negative electrode, first insulation barrier and second insulation barrier; Wherein, base plate is provided with the water conservancy diversion sealing shroud, and the end face two ends of water conservancy diversion sealing shroud are provided with first insulation barrier and second insulation barrier; Between first insulation barrier and second insulation barrier, be provided with the work negative electrode; Described work negative electrode has and the surperficial curvature that leaf dish runner profile adapts of processing, and has fluting on the work negative electrode, and this fluting is communicated with to extending below with water conservancy diversion sealing shroud inner chamber; And the port of said fluting is as the liquid outlet of electrolyte, and the lower ending opening of water conservancy diversion sealing shroud inner chamber is the electrolyte supply opening; Described fluting has and the edge radian that leaf dish runner profile adapts of processing.
Described first insulation barrier and second insulation barrier are used to protect the metal surface of non-processing part.
First side of described electrolytic bath is the inclined-plane, and second side is provided with an electrolytic bath front apron.
The electrode that employing is used for the processing of blisk electrolysis fluting carries out method for processing, may further comprise the steps:
Step 1, with blisk workpiece positioning and clamping on lathe Z axle, and the blisk workpiece connected positive source;
Step 3, leaf dish workpiece and working electrode are carried out automatic tool preset, confirm unslotted leaf dish workpiece and initial relative position of working electrode and machining gap;
Advantage of the present invention:
A kind of electrode and processing method that is used for the processing of blisk electrolysis fluting of the present invention; The blade profile surplus that has guaranteed fluting processing back formation is even as far as possible; For the fine finishining of next step blade profile is laid a solid foundation, working (machining) efficiency of the present invention is high, can reach 1mm/min; Can improve 50% with respect to existing processing method working (machining) efficiency, cost can reduce by 50%.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention blisk electrolysis fluting machined electrode;
Wherein, (a) be front view; (b) be vertical view; The 1-electrolytic bath; The 2-HSK hydraulic chuck; The 3-base of transferring; 4-electrolyte drain valve; 5-electrolyte overfall; 1-1-electrolytic bath front apron;
Fig. 2 is an embodiment of the present invention work cathode assembly structural representation;
Wherein, 6-1-base plate; 6-2-water conservancy diversion sealing shroud; The 6-3-negative electrode of working; 6-4 first insulation barrier; 6-5-second insulation barrier;
Fig. 3 is positioned at the notching construction sketch map on the work negative electrode for an embodiment of the present invention;
Wherein, 6-3-1 liquid outlet; The 6-3-2-supply opening;
Fig. 4 is an embodiment of the present invention blisk workpiece and slotted electrode sketch map;
Wherein, 7-blade; 8-blisk workpiece;
Fig. 5 is the flow process chart of an embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is further specified.
A kind of electrode and processing method that is used for the processing of blisk electrolysis fluting of the present invention can be and adopt electrolysis or additive method to carry out the accurately machined roughing operation of blisk blade profile, and blade profile surplus basic controlling is at 1 ~ 1.5mm.The blade profile runner that the present invention the is primarily aimed at blisk pre-profiling processing of slotting.Enforcement of the present invention is based on the electrolysis lathe that possesses multiaxis.
Like (a) among Fig. 1 with (b) shown in the figure; A kind of electrode that is used for the processing of blisk electrolysis fluting; Described electrode comprises work cathode assembly 6, electrolytic bath 1, HSK hydraulic chuck 2, switching base 3, electrolyte drain valve 4 and electrolyte overfall 5, and the electrolyte drain valve adopts ball valve made of plastic Q11F-10V, DN25 type in the embodiment of the invention; Wherein, Electrolytic bath 1 bottom is provided with switching base 3, electrolyte drain valve 4, electrolyte overfall 5 and work cathode assembly 6, and HSK hydraulic chuck 2 is connected with electrolytic bath 1 through switching base 3, and described HSK hydraulic chuck 2 connects lathe; First side of described electrolytic bath is the inclined-plane, and second side is provided with an electrolytic bath front apron 1-1.
As shown in Figure 2; Described work cathode assembly 6 comprises base plate 6-1, water conservancy diversion sealing shroud 6-2, work negative electrode 6-3, the first insulation barrier 6-4 and the second insulation barrier 6-5; Wherein, base plate 6-1 is provided with water conservancy diversion sealing shroud 6-2, and the end face two ends of water conservancy diversion sealing shroud 6-2 are provided with the first insulation barrier 6-4 and the second insulation barrier 6-5; Between the first insulation barrier 6-4 and the second insulation barrier 6-5, be provided with work negative electrode 6-3; Described work negative electrode 6-3 has and the surperficial curvature that leaf dish runner profile adapts of processing, and has fluting on the work negative electrode 6-3, and this fluting extends through water conservancy diversion sealing shroud 6-2 downwards; The port of fluting is as the liquid outlet 6-3-1 of electrolyte, and the lower ending opening of fluting is electrolyte supply opening 6-3-2; Described fluting has and the edge radian that leaf dish runner profile adapts of processing.
Be the electrode type face portion can be according to the different structure of leaf dish part, be designed to different shapes through the gap, satisfy the requirement of its fluting processing; Work negative electrode 6-3 calculates the shape of confirming liquid outlet according to each cross-section data of blade of blisk workpiece 8, simultaneously according to the shaping rule of latasuture with the end seam, calculating processing gap.The profile of water conservancy diversion sealing shroud 6-2 confirms that according to the space between two vane foils on the leaf dish its inner cavity size is then confirmed according to the blade profile of blade, thereby contained blade profile.
As shown in Figure 3, have fluting on the described work negative electrode 6-3, and this fluting is communicated with to extending below with water conservancy diversion sealing shroud 6-2 inner chamber, said fluting is as the liquid outlet 6-3-1 of electrolyte, and the lower ending opening of water conservancy diversion sealing shroud 6-2 inner chamber is electrolyte supply opening 6-3-2; This kind method for designing makes electrolyte form pressure seal; Electrolyte gets into water conservancy diversion sealing shroud 6-2 through electrode bottom supply opening 6-3-2; Flow out from the liquid outlet 6-3-1 of work negative electrode 6-3 through water conservancy diversion sealing shroud 6-2, after the electrolyte of outflow is full of electrolytic bath 1, flow out from electrolyte overfall 5.Electrolytic bath 1 is full of electrolyte, can guarantee that the processing district of the blade 7 of work negative electrode 6-3 and processing is full of electrolyte, Flow Field Distribution is even, avoids short circuit, guarantee processing continue carry out.The described first insulation barrier 6-4 and the second insulation barrier 6-5 are used to protect the metal surface of non-processing part.
As shown in Figure 4, described electrode is fixed on the electrolysis machine bed motion axle through HSK high-precision hydraulic chuck, cooperates with workpiece simultaneously to realize the multi-shaft interlocked of electrolysis fluting processing.Blisk workpiece 8 is installed on the longitudinal axis rotating disk of lathe, and blisk workpiece 8 is fed to work negative electrode 6-3 position, arrive any blade 7 position as the initial manufacture position to rotary integral leaf dish workpiece 8, carry out first blade profile fluting processing along B.
Adopt the described electrode that is used for the processing of blisk electrolysis fluting to carry out method for processing, its flow chart is as shown in Figure 5, may further comprise the steps:
Step 1, with blisk workpiece positioning and clamping on lathe Z axle, and the blisk workpiece connected positive source;
Step 3, leaf dish workpiece and working electrode are carried out automatic tool preset, confirm unslotted leaf dish workpiece and initial relative position of working electrode and machining gap;
Add man-hour at fluting, blisk workpiece 8 is carried out tool setting with work negative electrode 6-3, i.e. the alignment pin of leaf dish and electrode touching obtains the initial manufacture position, and described initial manufacture position can calculate through required Working position.Arrive any blade 7 position as the initial manufacture position along B to rotary integral leaf dish workpiece 8, confirm the processing primary clearance, logical electrolyte also is full of electrolytic bath 1; The positive pole that blisk workpiece 8 is connected dc source; Work negative electrode 6-3 is connected the negative pole of dc source, starts lathe, workpiece along Z to (vertically) feeding; Be Y simultaneously and rotatablely move to (C is a swinging axle) to (leaf spiral rotating shaft) and C, begin to carry out the processing of blade profile fluting to, B.When electrode reaches blade profile root runner position, accomplish fluting processing.With blisk workpiece 8 along Z after from electrode, withdrawing from, to the rotation calibration, move to next blade profile position along B, repeat above-mentioned steps, until accomplishing the processing of whole leaf dish blade profile fluting.
Claims (4)
1. one kind is used for the electrode that blisk electrolysis fluting is processed; It is characterized in that: comprise work cathode assembly (6), electrolytic bath (1), HSK hydraulic chuck (2), switching base (3), electrolyte drain valve (4) and electrolyte overfall (5); Wherein, electrolytic bath (1) bottom is provided with switching base (3), electrolyte drain valve (4), electrolyte overfall (5) and work cathode assembly (6); HSK hydraulic chuck (2) is connected with electrolytic bath (1) through switching base (3);
Described work cathode assembly (6) comprises base plate (6-1), water conservancy diversion sealing shroud (6-2), work negative electrode (6-3), first insulation barrier (6-4) and second insulation barrier (6-5); Wherein, Base plate (6-1) is provided with water conservancy diversion sealing shroud (6-2); The end face two ends of water conservancy diversion sealing shroud (6-2) are provided with first insulation barrier (6-4) and second insulation barrier (6-5); Between first insulation barrier (6-4) and second insulation barrier (6-5), be provided with work negative electrode (6-3); Described work negative electrode (6-3) has and the surperficial curvature that leaf dish runner profile adapts of processing, and has fluting on the work negative electrode (6-3), and this fluting is communicated with to extending below with water conservancy diversion sealing shroud (6-2) inner chamber; And the port of said fluting is as the liquid outlet (6-3-1) of electrolyte, and the lower ending opening of water conservancy diversion sealing shroud (6-2) inner chamber is electrolyte supply opening (6-3-2); Described fluting has and the edge radian that leaf dish runner profile adapts of processing.
2. the electrode that is used for the processing of blisk electrolysis fluting according to claim 1, it is characterized in that: described first insulation barrier (6-4) and second insulation barrier (6-5) are used to protect the metal surface of non-processing part.
3. the electrode that is used for the processing of blisk electrolysis fluting according to claim 1, it is characterized in that: first side of described electrolytic bath (1) is the inclined-plane, second side is provided with an electrolytic bath front apron (1-1).
4. adopt the described electrode that is used for the processing of blisk electrolysis fluting of claim 1 to carry out method for processing, it is characterized in that: may further comprise the steps:
Step 1, with blisk workpiece positioning and clamping on lathe Z axle, and the blisk workpiece connected positive source;
Step 2, electrolytic bath pass through HSK chuck clamping on lathe X axle, and working electrode is connected power cathode; Inject electrolyte through the electrolyte supply opening and be full of electrolyte until electrolytic bath;
Step 3, leaf dish workpiece and working electrode are carried out automatic tool preset, confirm unslotted leaf dish workpiece and initial relative position of working electrode and machining gap;
Step 4, with the energising of blisk workpiece and working electrode; Through the relative movement orbit between digital control system control working electrode and the blisk workpiece; And, comprise machining gap, speed, electric current, voltage and pulse frequency through adjustment Electrolyzed Processing parameter, accomplish the processing of blisk fluting.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400163A (en) * | 2014-09-29 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Blisk electrolysis slotting machining annular electrode and technology method |
| CN105345178A (en) * | 2015-11-22 | 2016-02-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrolysis open groove wing-shaped cathode device and design method thereof |
| CN106363264A (en) * | 2016-11-25 | 2017-02-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for protecting outlet face in electric spark punching make-up machining process |
| CN106944686A (en) * | 2017-03-30 | 2017-07-14 | 南京航空航天大学 | Blade subregion independence feed flow and the electrolytic machining clamper and method for having gas-tight layer |
| CN107052483A (en) * | 2017-03-30 | 2017-08-18 | 南京航空航天大学 | Insulation shielding jacking Electrolyzed Processing cathod system and processing method |
| WO2020215606A1 (en) * | 2019-04-23 | 2020-10-29 | 安徽理工大学 | Tool cathode with variable inner cavity and used for performing electrolytic machining on blisk with big-twisted blade |
| CN113210770A (en) * | 2021-04-20 | 2021-08-06 | 沈阳航天新光集团有限公司 | Electrolytic machining process for constant-section high-temperature alloy blisk |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400163A (en) * | 2014-09-29 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Blisk electrolysis slotting machining annular electrode and technology method |
| CN104400163B (en) * | 2014-09-29 | 2017-12-29 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of blisk electrolysis fluting processing annular electrode and process |
| CN105345178A (en) * | 2015-11-22 | 2016-02-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrolysis open groove wing-shaped cathode device and design method thereof |
| CN105345178B (en) * | 2015-11-22 | 2017-10-27 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of design method for being electrolysed fluting aerofoil profile cathode assembly |
| CN106363264A (en) * | 2016-11-25 | 2017-02-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for protecting outlet face in electric spark punching make-up machining process |
| CN106363264B (en) * | 2016-11-25 | 2019-01-08 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of electric spark-erosion perforation adds the method protected to exit face in working hour |
| CN106944686A (en) * | 2017-03-30 | 2017-07-14 | 南京航空航天大学 | Blade subregion independence feed flow and the electrolytic machining clamper and method for having gas-tight layer |
| CN107052483A (en) * | 2017-03-30 | 2017-08-18 | 南京航空航天大学 | Insulation shielding jacking Electrolyzed Processing cathod system and processing method |
| CN106944686B (en) * | 2017-03-30 | 2019-01-15 | 南京航空航天大学 | Blade subregion independence feed flow and the electrolytic machining clamper and method for having gas-tight layer |
| WO2020215606A1 (en) * | 2019-04-23 | 2020-10-29 | 安徽理工大学 | Tool cathode with variable inner cavity and used for performing electrolytic machining on blisk with big-twisted blade |
| CN113210770A (en) * | 2021-04-20 | 2021-08-06 | 沈阳航天新光集团有限公司 | Electrolytic machining process for constant-section high-temperature alloy blisk |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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