CN101862871B - Electrochemical burring device and burring process thereof - Google Patents
Electrochemical burring device and burring process thereof Download PDFInfo
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- CN101862871B CN101862871B CN2010102087849A CN201010208784A CN101862871B CN 101862871 B CN101862871 B CN 101862871B CN 2010102087849 A CN2010102087849 A CN 2010102087849A CN 201010208784 A CN201010208784 A CN 201010208784A CN 101862871 B CN101862871 B CN 101862871B
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Abstract
The invention relates to the technical field of surface treatment, in particular to an electrochemical burring device and a burring process thereof. The invention mainly performs the burring of a casting through the electrochemical process, and the burring device comprises an operating platform and a tool fixture capable of moving freely. The operating platform comprises an operating window for fetching the tool fixture, and an electrode connected with an anode. The tool fixture comprises a base fixture and a top cap fixture capable of being buckled with the base. Due to that the tool fixture is connected with a cathode, the top of the operating platform is connected with the anode, the end top of the red copper electrode is of 0.2-1 mm lower than the top surface of the through hole on the side deviated from a conducting device of the top cap fixture, the invention can greatly enhance the work efficiency, save the labor cost, and the alloy-steel casting is hardly of electric breakdown during the burring of the alloy-steel casting, thereby protecting the integrity of the alloy-steel casting.
Description
Technical field
The present invention relates to technical field of surface, particularly relate to electrochemical deburring equipment and deburring technology thereof.
Background technology
Magnesium alloy is that base adds the alloy that other elements are formed with magnesium.Because it has following advantage: (1) though, the proportion of magnesium alloy is heavier than plastics,, the intensity of Unit Weight and spring rate are higher than plastics, so under the situation of same intensity parts, it is thin and light that the parts of magnesium alloy can be done than plastics.In addition, because the specific strength of magnesium alloy is also high than aluminium alloy and iron, therefore, under the intensity that does not reduce parts, can alleviate the weight of the parts of aluminium or iron; (2), the magnesium alloy intensity ratio of quality (intensity with) that compares is the highest.The specific stiffness ratio of quality (rigidity with) is near aluminium alloy and steel, far above engineering plastics; (3), in elastic range, when magnesium alloy received shock loading, the energy of absorption was big more half the than Al-alloy parts, so magnesium alloy has good antidetonation noise abatement performance; (4), the magnesium alloy fusing point is lower than aluminium alloy fusing point, the die cast performance is good.Mg alloy castings tensile strength and aluminium alloy castings are suitable, generally can reach 250MPA, reach as high as Mpa more than 600.Yield strength, percentage elongation and aluminium alloy also are more or less the same; (5), magnesium alloy also has excellent corrosion resisting performance, capability of electromagnetic shielding, shielding property can be accomplished 100% recycling; (6), the casting row accurate to dimension of magnesium alloy member stability higher pressure foundry goods is high, can carry out high-accuracy mechanical processing; (7), magnesium alloy has good die cast performance, the I of die casting wall thickness reaches 0.5mm.
Also have in addition high heat conduction and electric conductivity, nonmagnetic, shielding good and nontoxic characteristics.Thereby be widely used, reach light-weighted purpose.
Especially at mobile portable phone, the size of the LCD screen on the notebook computer increases every year, and at their the branch support framework and the housing at the back side, Application of Magnesium becomes hot topic gradually.But, because workpiece such as mobile phone, notebook are little, and behind the abrasive tool moulding, the burr that stays on its workpiece, the burr that especially complicated inner chamber position or cross bore intersection etc. are local all is more unmanageable, traditional technology can only be manual process; Workload is very big; Even staff constantly increases,, also can cause the quality of product unstable, the efficient of doing over again height because personnel's qualification and operation technique is different; And through after grind to produce accomplishing, flow to the back operation and can bring a lot of artificial problems, for example: damage, scuffing, overground, burr processing is not in place etc.Manual process on the one hand accessibility is poor, and inefficiency on the other hand is especially in the process of manual burr, because the activity of magnesium alloy is easy to generate potential safety hazard.People have done big quantity research for this reason; Wherein, One Chinese patent application number is 200580031236.0 patent documentation; Just disclose a kind of electrochemical machiningtool and the method for using this electrochemical machiningtool converted products, it comprises electrode body, this electrochemical machiningtool and the method that is associated; Utilize electrochemistry processing to carry out burr with groove machined electrode and deburring electrode and handle, the cover for seat of using said electrochemical machiningtool and the method that is associated to process has the oil sump that radial dynamic pressure produces groove, axial hydrodynamic generation groove and removed burr.Said cover for seat can be used on the hydrodynamic pressure bearing of the Spindle Motor that is used for hard disk drive.Though it is artificial that the document utilizes machinery to replace, equipment is comparatively complicated, punctures workpiece in the process of place to go burr easily; Especially be not suitable for being applied on the Mg alloy castings.
Summary of the invention
One of the object of the invention is, a kind of low cost, high efficiency electrochemical deburring equipment are provided.
Two of the object of the invention is, the method for utilizing the said equipment deburring is provided.
The present invention realizes through following technical scheme:
Electrochemical deburring equipment comprises workbench and the tool fixture that can move freely; Said workbench comprises electric control system, the action pane of the tool fixture of taking and the electrode that is connected anode; Said tool fixture comprises base tool and the top cap fixture that can fasten with base;
Said base tool is provided with the groove that can hold electrolyte, is provided with water inlet in the groove, and water inlet break-through base tool sidewall links to each other with outside oral siphon;
Be provided with electric installation between base tool and the top cap fixture, electric installation is fixed on the top cap fixture through connector, and electric installation one side is provided with electrode connecting parts;
Said top cap fixture is provided with at least one tool through hole perpendicular to base tool direction; Be provided with tubulose red copper electrode in each through hole.
Corresponding to the tool through hole on the top cap fixture, also be provided with through hole on the said electric installation, an end of red copper electrode is located in the through hole on the electric installation, and the other end is located in the through hole of top cap fixture.
Said electric installation is an electrode copper coin that can cover the groove mouth.
Said red copper electrode is located at the end in the through hole of top cap fixture, and the end top of red copper electrode is lower than through hole top end face 0.2～1mm that top cap fixture deviates from electric installation one side.
Be provided with tubular filler in the said red copper electrode tube.
Also be provided with delivery port in the said base tool groove, delivery port break-through base tool sidewall links to each other with the outer rows water pipe.
Use the process of above-mentioned electrochemical deburring equipment deburring, preparation process is following:
Step 4, open valve, electrolyte is flow in the groove of base tool through oral siphon, water inlet successively;
Step 6, take off the alloy-steel casting of crossing through electrochemical treatments from tool fixture and carry out clean; Earlier place cleaning fluid to clean 3～6 seconds alloy-steel casting; Then place clear water to clean 3～6 seconds, cleaned 3～6 seconds with aqueous slkali then, cleaned 3～6 seconds with clear water more at last;
Deburring operation is accomplished in step 7, oven dry.
Electrolyte described in the step 4 is the salting liquid of one or more mixing in sodium nitrate, sodium chloride or the sodium carbonate, and wherein the weight ratio of salt and water is 1: 3.
Electrolyte described in the step 4 is sodium nitrate solution.
Cleaning fluid is counted by weight percentage described in the step 6, is the mixed solution of 45%～80% nitric acid and 20%～55% hydrofluoric acid.
Aqueous slkali described in the step 5 is a sodium hydroxide solution.
The present invention mainly adopts electrochemical deburring, and deburring equipment comprises workbench and the tool fixture that can move freely; Workbench comprises the action pane of the tool fixture of taking, the electrode of connection anode; Tool fixture comprises base tool and the top cap fixture that can fasten with base; Because what connect on the tool fixture is negative electrode; The top of workbench connects anode; And the end top that reaches the red copper electrode is lower than through hole top end face 0.2～1mm that top cap fixture deviates from electric installation one side; Length in conjunction with burr is coordinated discharge time, except making alloy-steel casting in the process of deburring, is not easy by electrical breakdown; Be provided with tubular filler in the red copper electrode tube, can make on the one hand the red copper electrode tube in use repeatedly, can not be out of shape, protected the red copper electrode interior not corroded on the other hand,, increase the service life.The present invention has protected outside the integrality of alloy-steel casting, also has following advantage:
(1), electrochemical deburring machine utilizes the electrochemical metal process technology; In specialized designs tool fixture system; Workpiece links to each other with the both positive and negative polarity of power supply respectively with electrode, and under the effect of electric field and electrolyte, the two poles of the earth produce charge-exchange; Realize " ion remaval " of privileged site, reach technological requirements such as deburring, rounding, polishing and moulding;
(2), the electrolyte Automatic Cycle filter to reuse, the mud after the filtration and residue are squeezed into a piece pie, directly taking-up is reclaimed, environmental protection does not have other pollutions;
(3), electric control system is made up of power supply major loop, PLC control circuit, operation control circuit, controlled drive circuit and signal acquisition testing circuit, can realize the parameter storage and call;
Production and labour costs have been reduced when (4), increasing work efficiency;
Use thimble and the aperture deburring of this equipment to product at present, each circulation is no more than 1 minute and can accomplishes, and after parameter adjustment was good, good reproducibility guaranteed constant product quality.Basically solved artificial deburring work, can not need use file, need not to start workpiece processing, can save the fixedly consumptive material that the workshop is long-term.According to present improvement, the production line personnel can solve thimble hair personnel, carry out personnel and loft personnel in the product, only product are carried out periphery and handle and get final product.One notebook is an example, handles identical position burr, and per tour 5 people manufactured a finished product 280 in 10 hours, and per tour 1 people manufactured a finished product 1880 in 10 hours behind the use electrochemical deburring machine, and operating efficiency improves more than 30 times.
In a word, the present invention not only equipment and technology is comparatively simple, and greatly reduces production cost, and is environmentally friendly; Especially be particularly suitable for the burr on the foundry goods of this special relatively material institute moulding of magnesium alloy, certainly, the present invention also is fit to the deburring of other alloy-steel castings simultaneously.
Figure of description
Fig. 1 is the sketch map of the present invention under user mode;
Fig. 2 is the three-dimensional exploded view of the tool fixture of electrochemical deburring equipment of the present invention;
Fig. 3 is the stereogram of the electric installation top cap fixture of electrochemical deburring equipment of the present invention;
Fig. 4 is the stereogram of the another kind of embodiment of the electric installation top cap fixture of electrochemical deburring equipment of the present invention;
Fig. 5 is the stereogram of another embodiment of the electric installation top cap fixture of electrochemical deburring equipment of the present invention;
Fig. 6 is the enlarged drawing at A place among Fig. 2;
Fig. 7 is the enlarged drawing at B place among Fig. 3.
Concrete embodiment
Below in conjunction with the specific embodiment the present invention is done further detailed description, to help it will be apparent to those skilled in the art that the present invention.
Electrochemical deburring equipment comprises workbench 1 and the tool fixture 2 that can move freely;
Use the process of above-mentioned electrochemical deburring equipment deburring, preparation process is following:
Step 4, open valve, sodium nitrate electrolyte is flow in the groove 213 of base tool through oral siphon 9, water inlet 211 successively;
Step 6, take off the alloy-steel casting of crossing through electrochemical treatments 5 from tool fixture 2 and carry out clean; Place the mixed solution of 80% nitric acid and 20% hydrofluoric acid to clean 3 seconds alloy-steel casting 5 earlier; Then place clear water to clean 3 seconds; Cleaned 3 seconds with the NaOH aqueous slkali then, cleaned 3 seconds with clear water more at last;
Deburring operation is accomplished in step 7, oven dry.
At last alloy-steel casting is sent into subsequent processing and change into processing.
Electrochemical deburring equipment comprises workbench 1 and the tool fixture 2 that can move freely;
Tool fixture 2 is seen Fig. 2, comprises base tool 21, electric installation 3 and the top cap fixture 22 that can fasten with base; Base tool 21 is provided with the groove 213 that can hold electrolyte; Groove 213 1 side-walls are provided with water inlet 211; Water inlet 211 break-through base tools 21 sidewalls link to each other with outside oral siphon 9; Groove 213 at are provided with delivery port 212, and delivery port 212 break-through base tools 21 sidewalls link to each other with the outer rows water pipe; Electric installation 3 is that a cube electrode copper coin 32 is formed with electric wire 33, sees Fig. 4; The electrode copper coin is fixed on the top cap fixture through connector 4; Electric installation 3 one sides are provided with electrode connecting parts 31; The electrode copper coin is provided with a plurality of through holes 333 perpendicular to base tool 21 directions, and through hole on the corresponding tool electrode copper coin also is provided with tool through hole 222 on the top cap fixture 22; Be provided with tubulose red copper electrode 223 in each through hole; One end of red copper electrode 223 is located in the through hole 333 on the electric installation 3; The other end is located in the through hole 222 of top cap fixture 22; The end top of red copper electrode 223 is lower than the through hole top end face 0.6mm that top cap fixture 22 deviates from electric installation 3 one sides, i.e. a=0.6mm.Be filled with the filler 224 of tubulose in the pipe of red copper electrode, promptly be provided with filler 224 in the red copper electrode, filler 224 is provided with the liquid pass hole 225 of the electrolyte that can circulate.Filler 224 can make on the one hand red copper electrode tube 223 in use repeatedly, can not be out of shape, and has protected the red copper electrode interior not corroded on the other hand, increases the service life.
Wherein, because the relative position difference of burr on the foundry goods 5 in order to practice thrift electrode copper coin 32 costs, is not being pulled the part burr of drawing together on the electrode copper coin, can be connected with the electrode copper coin through the red copper electrode that conductive electric wire 31 will pass top cap fixture.
Use the process of above-mentioned electrochemical deburring equipment deburring, preparation process is following:
Step 4, open valve, sodium nitrate electrolyte is flow in the groove 213 of base tool through oral siphon 9, water inlet 211 successively;
Step 6, take off the alloy-steel casting of crossing through electrochemical treatments 5 from tool fixture 2 and carry out clean; Place the mixed solution of 65% nitric acid and 35% hydrofluoric acid to clean 4 seconds alloy-steel casting 5 earlier; Then place clear water to clean 4 seconds; Cleaned 4 seconds with the NaOH aqueous slkali then, cleaned 4 seconds with clear water more at last;
Deburring operation is accomplished in step 7, oven dry; Send into subsequent processing and change into processing.
Electrochemical deburring equipment comprises workbench 1 and the tool fixture 2 that can move freely;
Tool fixture 2 is seen Fig. 2, comprises base tool 21, electric installation 3 and the top cap fixture 22 that can fasten with base; Base tool 21 is provided with the groove 213 that can hold electrolyte; Groove one side-walls is provided with water inlet 211; Water inlet 211 break-through base tools 21 sidewalls link to each other with outside oral siphon 9; Groove 213 at are provided with delivery port 212, and delivery port 212 break-through base tools 21 sidewalls link to each other with the outer rows water pipe; Electric installation is a conductor wire 33; Be provided with a plurality of through holes 222 perpendicular to base tool direction on the top cap fixture 22; Be provided with tubulose red copper electrode 223 in each through hole, an end of red copper electrode 223 is located in the through hole 222 of top cap fixture 22, and the other end links to each other with conductor wire 3; The end top of red copper electrode 223 is lower than the through hole top end face 1mm that top cap fixture 22 deviates from electric installation 3 one sides, i.e. a=1mm.The pipe of red copper electrode interior 223 is filled with the filler 224 of tubulose, promptly is provided with filler 24 in the red copper electrode 223, and filler 24 is provided with the liquid pass hole 225 of the electrolyte that can circulate.Filler can make on the one hand red copper electrode tube 223 in use repeatedly, can not be out of shape, and has protected red copper electrode 223 inside not corroded on the other hand, increases the service life.
Because the relative position difference of burr on the foundry goods, in order to practice thrift electrode copper coin cost, the big alloy-steel casting of distance between the few and burr for burr can be connected with the electrode copper coin through the red copper electrode 223 that conductive electric wire will pass top cap fixture 22.
Use the process of above-mentioned electrochemical deburring equipment deburring, preparation process is following:
Step 4, open valve, sodium carbonate electrolyte is flow in the groove 213 of base tool through oral siphon 9, water inlet 211 successively;
Step 6, take off the alloy-steel casting of crossing through electrochemical treatments 5 from tool fixture 2 and carry out clean; Place the mixed solution of 45% nitric acid and 55% hydrofluoric acid to clean 6 seconds alloy-steel casting 5 earlier; Then place clear water to clean 6 seconds; Cleaned 6 seconds with the potassium hydroxide aqueous slkali then, cleaned 6 seconds with clear water more at last;
Deburring operation is accomplished in step 7, oven dry; Send into subsequent processing and change into processing.
The foregoing description is preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention, so all equivalences of being done with the described characteristic of claim of the present invention, structure and principle change or modify, all should be included within the claim scope of the present invention.
Claims (10)
1. an electrochemical deburring equipment comprises workbench and the tool fixture that can move freely; Said workbench comprises electric control system, the action pane of the tool fixture of taking and the electrode that is connected anode; It is characterized in that: said tool fixture comprises base tool and the top cap fixture that can fasten with base;
Said base tool is provided with the groove that can hold electrolyte, is provided with water inlet in the groove, and water inlet break-through base tool sidewall links to each other with outside oral siphon;
Be provided with electric installation between base tool and the top cap fixture, electric installation is fixed on the top cap fixture through connector, and electric installation one side is provided with electrode connecting parts;
Said top cap fixture is provided with at least one tool through hole perpendicular to base tool direction; Be provided with tubulose red copper electrode in each through hole.
2. electrochemical deburring equipment according to claim 1; It is characterized in that: on the said electric installation corresponding to the tool through hole on the top cap fixture; Also be provided with through hole, an end of red copper electrode is located in the through hole on the electric installation, and the other end is located in the through hole of top cap fixture.
3. electrochemical deburring equipment according to claim 1 is characterized in that: said electric installation is an electrode copper coin that can cover the groove mouth.
4. electrochemical deburring equipment according to claim 1 is characterized in that: said red copper electrode, be located at the end in the through hole of top cap fixture, and the end top of red copper electrode is lower than through hole top end face 0.2～1mm that top cap fixture deviates from electric installation one side.
5. electrochemical deburring equipment according to claim 4 is characterized in that: be provided with tubular filler in the said red copper electrode tube.
6. use the process of any said electrochemical deburring equipment deburring among the claim 1-5, it is characterized in that: preparation process is following:
Step 1, elder generation install base tool, electric installation and the top cap fixture of tool fixture, with linking to each other with outer water pipe on the base tool;
Step 2, the action pane of tool fixture through workbench is placed on the electric glue base of workbench, the electrode connecting parts on the electric installation is connected with negative pole;
Step 3, alloy-steel casting is placed on top cap fixture deviates from electric installation one side, make that corresponding burr correspondence places the red copper electrode on the alloy-steel casting;
Step 4, open valve, electrolyte is flow in the groove of base tool through oral siphon, water inlet successively;
Step 5, opening power are utilized the electrochemical treatments burr; In the processing procedure, Control of Voltage is at 10～17v, and the processing time was controlled at 6～40 seconds, and the pH value is controlled at 6～9;
Step 6, take off the alloy-steel casting of crossing through electrochemical treatments from tool fixture and carry out clean; Earlier place cleaning fluid to clean 3～6 seconds alloy-steel casting; Then place clear water to clean 3～6 seconds, cleaned 3～6 seconds with aqueous slkali then, cleaned 3～6 seconds with clear water more at last;
Deburring operation is accomplished in step 7, oven dry.
7. according to the process of the said deburring of claim 6, it is characterized in that: electrolyte described in the step 4 is the salting liquid of one or more mixing in sodium nitrate, sodium chloride or the sodium carbonate, and wherein the weight ratio of salt and water is 1: 3.
8. according to the process of the said deburring of claim 6, it is characterized in that: electrolyte described in the step 4 is sodium nitrate solution.
9. according to the process of the said deburring of claim 6, it is characterized in that: cleaning fluid is counted by weight percentage described in the step 6, is the mixed solution of 45%～80% nitric acid and 20%～55% hydrofluoric acid.
10. according to the process of the said deburring of claim 6, it is characterized in that: aqueous slkali described in the step 5 is a sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102087849A CN101862871B (en) | 2010-06-24 | 2010-06-24 | Electrochemical burring device and burring process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102087849A CN101862871B (en) | 2010-06-24 | 2010-06-24 | Electrochemical burring device and burring process thereof |
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| CN101862871A CN101862871A (en) | 2010-10-20 |
| CN101862871B true CN101862871B (en) | 2012-01-04 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102011172B (en) * | 2010-12-28 | 2012-10-10 | 武汉航空仪表有限责任公司 | Electrolytic machining method for stainless steel tube with high length-diameter ratio |
| CN102139365A (en) * | 2010-12-30 | 2011-08-03 | 东莞市星河精密压铸模具有限公司 | Processing technique for removing burrs of die casting |
| DE102011014364A1 (en) * | 2011-03-17 | 2012-09-20 | Stoba Präzisionstechnik Gmbh & Co. Kg | Method and device for the electrochemical machining of workpieces |
| KR101396845B1 (en) * | 2012-07-26 | 2014-05-20 | 주식회사 에이에스티젯텍 | Electrolytic deflash apparatus for strip-shaped elements |
| CN102784985B (en) * | 2012-08-07 | 2014-09-10 | 李庆 | Multi-station numerically controlled machine tool for electrochemical deburring and polishing in high-pressure water and working method thereof |
| CN105269093A (en) * | 2014-05-28 | 2016-01-27 | 东北林业大学 | Portable and automatic electrochemical deburring device |
| CN104942880A (en) * | 2015-07-02 | 2015-09-30 | 张宝宝 | Deburring system and method for paper carrier band |
| CN106077859A (en) * | 2016-06-30 | 2016-11-09 | 徐工集团工程机械有限公司 | Remove the method and device of metal works burr |
| CN108746898B (en) * | 2018-06-27 | 2020-01-10 | 南通市中吕齿轮有限公司 | Gear deburring process |
| CN111085741A (en) * | 2020-01-10 | 2020-05-01 | 常州市佳杰医疗器械有限公司 | Surface treatment method for special-shaped surgical knife |
| CN111570952A (en) * | 2020-05-09 | 2020-08-25 | 中国航发沈阳发动机研究所 | Air-cooled hollow blade air film hole inner wall sharp corner rounding device and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3494837B2 (en) * | 1996-12-27 | 2004-02-09 | 保明 奥谷 | Manufacturing method of mold for deburring castings using electric discharge machining |
| US6019555A (en) * | 1997-11-20 | 2000-02-01 | Hudson Products Corporation | Debur tool for simultaneously removing burrs from and chamfering a hole in a workpiece |
| CN101457387B (en) * | 2007-12-13 | 2010-07-28 | 广西玉柴机器股份有限公司 | Method for removing cross-hole bur |
| CN201702480U (en) * | 2010-06-24 | 2011-01-12 | 东莞东运镁业有限公司 | Electrochemical deburring device |
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