CN201471028U - Small-hole electrolytic deburring device and tool - Google Patents
Small-hole electrolytic deburring device and tool Download PDFInfo
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- CN201471028U CN201471028U CN2009201687097U CN200920168709U CN201471028U CN 201471028 U CN201471028 U CN 201471028U CN 2009201687097 U CN2009201687097 U CN 2009201687097U CN 200920168709 U CN200920168709 U CN 200920168709U CN 201471028 U CN201471028 U CN 201471028U
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Abstract
The utility model relates to a small-hole electrolytic deburring device with a diameter of not more than 2.0 mm and a length-diameter ratio of more than 40 and a tool, which is particularly applicable to the electrolytic machining of an oil ejector body and other devices with ultra-deep small holes and crossed small holes. The small-hole electrolytic deburring device is characterized in that the operating temperature of electrolyte is automatically controlled within the scope of 25 plus or minus 1 DEG C; and a transitional circular arc with a radius of 0.5-1.0 mm is formed at the junction of two inner holes on a workpiece, so that the fluidity of fuel oil in an oil duct is improved. An electrolytic machining cathode adopts a specially made slender brazed copper tube, the centre hole diameter of the tube is less than 1.0 mm; the wall thickness s of the tube is equal to 12-20 percent of the diameter of a small hole; and the length of the tube is larger than 40 times of the diameter of a processing hole.
Description
Technical field
The utility model relates to a kind of aperture electrochemical deburring equipment and instrument, particularly relates to a kind of diameter that is used for and is not more than 2.0mm, and draw ratio is greater than the electrochemical deburring equipment and the instrument of 40 aperture.
Background technology
Electrolyzed Processing is a kind of special processing technology, is to utilize electrochemistry anodic solution principle to remove the processing method of material.It is fast that it has process velocity, and surface quality is good, not limited by the strength of materials, hardness, toughness, and do not have advantage such as macroscopical cutting force, obtained using widely in industries such as Aeronautics and Astronautics, automobile, engines.In engine fuel injection system product manufacturing technology, use electrochemical deburring technology, high efficiency, remove Small-deep Hole on the oil injector body at low cost and the interior burr of aperture of intersecting is a key process technology.In existing patent documentation, as CN101052751A, the electrochemical deburring method that GB1275246 provides is not suitable for super dark aperture deburring.The electrolytic deburring machine of selling on the market, for example the DJK6032A electrolytic deburring machine of the long blower fan electricity in Suzhou scientific ﹠ technical corporation production can only be used for common endoporus deburring.So in the prior art scope, still lack a kind of diameter that is applicable to and be not more than 2.0mm, draw ratio is greater than 40 super dark aperture, intersects the electrochemical deburring equipment and the instrument of aperture.The trans-corporation that has has at present grasped above-mentioned key technology, utilizes fuel injector product that above-mentioned technology produces public offering.But these companies are protected the said equipment and instrument as know-how, do not publish on publication, also do not apply for a patent.Simultaneously, there are not this aperture electrochemical deburring equipment and instrument public offering on the domestic and international market yet.Therefore above-mentioned technology does not belong to the scope of prior art.
Summary of the invention
The utility model provides a kind of hole diameter d to be not more than 2.0mm, and draw ratio L/d is greater than 40 aperture electrochemical deburring equipment and instrument, is specially adapted to oil injector body etc. and has super dark aperture, intersects the part processing of aperture.
The technical scheme that the utility model adopted is: design a kind of new aperture electrochemical deburring equipment and instrument, comprise that the negative electrode that aperture electrolytic deburring machine, Electrolyzed Processing use, the diameter d that it is characterized in that aperture are not more than 2.0mm, the draw ratio L/d of aperture is greater than 40.This equipment can make the operating temperature of electrolyte be controlled at automatically in 25 ± 1 ℃ of scopes.When using the said equipment and instrument, can make the transition arc of formation R0.5-R1.0mm in two endoporus junctions on the workpiece, thereby improve the flow behavior of oil duct intermediate fuel oil by the negative electrode of selecting suitable geomery.The feature of the instrument that wherein said Electrolyzed Processing is used is the negative electrode that the pipe of employing brass manufacturing is used as Electrolyzed Processing, tube outer diameter d
1Diameter less than 1.5mm, be used for the mesopore d of electrolyte circulation on the pipe
2Diameter is less than 1.0mm, and the wall thickness s of pipe equals 12%～20% of hole diameter d, and the length of pipe is greater than 40d.
The beneficial effects of the utility model and advantage are, enlarged the range of application of aperture electrochemical deburring technology, interior Burr Problem is removed in the electrolysis that has solved the minor diameter superdeep holes, can make that two endoporus junctions form suitable transition arc on the workpiece, thereby improve the cleannes of precision parts such as oil injector body, and improve the flow behavior of oil duct intermediate fuel oil.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an aperture electrolytic deburring machine structural representation of the present utility model.
Fig. 2 is the negative electrode enlarged drawing that Electrolyzed Processing of the present utility model is used.
Among the figure 1, the lathe bed assembly, 2, the electrolyte case, 3, electrical equipment control device, 4, lathe bed, 5, workbench, 6, anchor clamps, 7, negative electrode, 8, brass tube, 9, insulating protective layer.
The specific embodiment
Fig. 1 is one and implements oil injector body oil inlet and oil return of the present utility model hole electrolytic deburring machine.Workpiece material is the 20CrMo steel, hardness HRc25～35.This Machine Tool design is two stations, and each station is installed two anchor clamps, can process two oil injector bodies simultaneously.This lathe comprises three major parts: lathe bed assembly 1, electrolyte case 2, electrical equipment control device 3.Its medial bed assembly is made up of stainless steel lathe bed 4 and anticorrosive work platform 5.On two stations, have 4 independently electrolysis anchor clamps 6.Electrolyte case 2 adopts stainless steel to be welded.The device of heating and cooling electrolyte is housed in the electrolyte case 2, and is controlled at automatically in 25 ± 1 ℃ of scopes by the precision temperature control section in the electrical equipment control device 3.Electrolyte adopts the aqueous solution of sodium nitrate and sodium chlorate, and voltage, electric current and workpiece material, size used when concrete prescription needs according to Electrolyzed Processing are definite through testing.Electrolyte needs through multistage filtering, with the cleannes that guarantee to enter the cathode tube mesopore and arrive the electrolyte on Electrolyzed Processing surface.Electrolysis power adopts the DC pulse voltage-stabilized power supply, and voltage 6～18V is adjustable continuously.Except that loading and unloading needed manual operations, all the other process were automatic control.Negative electrode is the main tool that Electrolyzed Processing is used.Fig. 2 is the enlarged drawing of negative electrode.The utility model adopts the negative electrode of the elongated pipe 8 of brass manufacturing as the aperture electrochemical deburring.In the present embodiment, the diameter d of the enterprising spill port of workpiece oil injector body is 1.5～2mm.The outside diameter d of brass tube 8
1Be designed to 0.9～1.4mm, pipe wall thickness S is 0.2～0.4mm.Non-electrolysis position outside cathode tube will add an insulating protective layer 9.The mesopore d that is used for electrolyte circulation on the pipe
2Diameter be 0.5～0.7mm.Electrolyte can be by the mesopore d of negative electrode like this
2Enter the electrolysis position, make electrolysis positional precision height, shapeliness, thus can remove the burr of junction, oil inlet and oil return road preferably, form suitable transition arc.The radius of transition arc is R0.5～R1.0mm.The supply pump pressure of supplying with electrolyte is 1.5～2MPa.This pressure can make electrolyte flow through the mesopore d of cathode tube fast
2, so that take away electrolysate and heat.Its flow velocity can be up to 20～30 meter per seconds.
Claims (3)
1. aperture electrochemical deburring equipment and instrument comprise the negative electrode that aperture electrolytic deburring machine, Electrolyzed Processing are used, and it is characterized in that the diameter d of aperture is not more than 2.0mm, and the draw ratio L/d of aperture is greater than 40; This equipment can make the operating temperature of electrolyte be controlled at automatically in 25 ± 1 ℃ of scopes.
2. aperture electrochemical deburring equipment according to claim 1 and instrument is characterized in that selecting the negative electrode of suitable geomery, can make two endoporus junctions on the workpiece form the transition arc of R0.5-R1.0mm.
3. aperture electrochemical deburring instrument according to claim 1, the negative electrode that it is characterized in that adopting the pipe of brass manufacturing to use, tube outer diameter d as Electrolyzed Processing
1Diameter less than 1.5mm, be used for the mesopore d of electrolyte circulation on the pipe
2Diameter is less than 1.0mm, and the wall thickness s of pipe equals 12%～20% of hole diameter d, and the length of pipe is greater than 40d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201687097U CN201471028U (en) | 2009-08-07 | 2009-08-07 | Small-hole electrolytic deburring device and tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201687097U CN201471028U (en) | 2009-08-07 | 2009-08-07 | Small-hole electrolytic deburring device and tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201471028U true CN201471028U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201687097U Expired - Lifetime CN201471028U (en) | 2009-08-07 | 2009-08-07 | Small-hole electrolytic deburring device and tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN201471028U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234832A (en) * | 2011-06-30 | 2011-11-09 | 清华大学 | Precise controllable electrolysis removal technology for burrs on inner bore intersection line of mechanical metal part |
| CN103990873A (en) * | 2014-06-09 | 2014-08-20 | 广西玉柴机器股份有限公司 | Electrochemical deburring tool for diesel engine |
| CN109434723A (en) * | 2018-12-28 | 2019-03-08 | 吉林博仁科技有限责任公司 | A kind of ECM tooling of floated connection oil injector seat |
-
2009
- 2009-08-07 CN CN2009201687097U patent/CN201471028U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234832A (en) * | 2011-06-30 | 2011-11-09 | 清华大学 | Precise controllable electrolysis removal technology for burrs on inner bore intersection line of mechanical metal part |
| CN102234832B (en) * | 2011-06-30 | 2012-12-05 | 清华大学 | Precise controllable electrolysis removal technology for burrs on inner bore intersecting line of mechanical metal part |
| CN103990873A (en) * | 2014-06-09 | 2014-08-20 | 广西玉柴机器股份有限公司 | Electrochemical deburring tool for diesel engine |
| CN109434723A (en) * | 2018-12-28 | 2019-03-08 | 吉林博仁科技有限责任公司 | A kind of ECM tooling of floated connection oil injector seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FIRST AUTOMOBILE WORKS GROUP CORPORATION Free format text: FORMER OWNER: WUXI FUEL INJECTION EQUIPMENT INSTITUTE, CHINA FAW GROUP CORPORATION Effective date: 20120222 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214063 WUXI, JIANGSU PROVINCE TO: 130011 CHANGCHUN, JILIN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120222 Address after: 130011 No. 2259 Dongfeng Avenue, West New Economic and Technological Development Zone, Changchun Patentee after: China FAW Group Corporation Address before: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 15 Patentee before: Wuxi Fuel Injection Equipment Institute, China FAW Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |