CN202943344U - Electrochemical machining (ECM) device of electrochemical machining narrow groove - Google Patents
Electrochemical machining (ECM) device of electrochemical machining narrow groove Download PDFInfo
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- CN202943344U CN202943344U CN 201220569324 CN201220569324U CN202943344U CN 202943344 U CN202943344 U CN 202943344U CN 201220569324 CN201220569324 CN 201220569324 CN 201220569324 U CN201220569324 U CN 201220569324U CN 202943344 U CN202943344 U CN 202943344U
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- lifting sliding
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Abstract
The utility model relates an electrochemical machining (ECM) device of an electrochemical machining narrow groove. The ECM device comprises power source equipment and a base, wherein a machine frame is arranged on the base, and the ECM device is characterized in that the base is provided with a fixed seat which is used for containing parts to be machined, a lifting sliding seat is arranged on the machine frame, the lifting sliding seat is arranged above the fixed seat, a vibration mechanism is arranged in the lifting sliding seat, and an electrode clamp and a tool electrode are arranged at the bottom of the lifting sliding seat. The ECM device can effectively remove passivation coating so as to protect the tool electrode and prolong service life. A high-frequency narrow-pulse power source is adopted so as to effectively guarantee that the interior of a part has no remaining internal stress, a narrow slot pitch is obtained, and quality of a product is improved.
Description
Technical field
The utility model relates to narrow grooving apparatus and method, especially to carry out ECM device and the processing method of the higher narrow groove of electrochemistry processing of precision than difficult to machine material.
Background technology
ECM is electrochemistry processing, since coming out the 1950's, through semicentennial development, ready-madely has been an important branch of machine-building.Electrolyzed Processing is used in war industry in China the earliest, along with the development of new and high technology and the development of novel war products, novel difficult-to-machine material, high accuracy, great surface quality, the integrally-built part of complicated shape thin-walled are increasing, for Electrolyzed Processing has been opened up more wide application prospect.
The processing technology of narrow groove is full-fledged in China, and narrow groove part is widely used in the industries such as defense industry, cosmetology, biochemistry.Along with the progress of the development science and technology in epoch, market is also more and more higher to the requirement of narrow groove, and according to product needed, part reduces as much as possible the width of groove, or guarantees the required precision of narrow groove under the prerequisite that guarantees structure, intensity.
China adopts the narrow grooves of processes such as milling, grinding, punching press, electrolysis at present mostly, from aspects such as processing cost, production efficiency, machining accuracy, the ranges of work relatively, various processing methods all have pluses and minuses separately, the traditional processing mode such as milling, grinding, punching press is due to the restriction that is subject to the aspects such as cutter width, part material, the limiting value of processing narrow groove is larger, and the more difficult control of the precision of cutter thickness; In addition, also can be at the residual burr of piece surface or flange, the residual internal stress after processing can cause part deformation, affect the stability of product.
The utility model content
The utility model provides ECM device and the processing method of the narrow groove of a kind of electrochemistry processing for above-mentioned defective, has reduced to add man-hour to the damage of tool-electrode, has extended the service life of tool-electrode, and the narrow groove smoothness that processes is good.
For this reason, the utility model is taked following technical scheme, the ECM device of the narrow groove of a kind of electrochemistry processing, comprise power-supply device and pedestal, frame is set on pedestal, it is characterized in that being provided for holding on described pedestal the holder of part to be processed, one lifting sliding seat is set on described frame, the described lifting sliding seat of gig arranges vibrating mechanism in the top of holder in described lifting sliding seat, and the bottom of described lifting sliding seat arranges electrode holder and tool-electrode.Electrochemical discharge processing easily forms passivating film and hinders processing in the metal surface, if can't remove fast, can cause the tool-electrode burn.Vibrating mechanism can allow tool-electrode intermittently work, and allows simultaneously hydraulic pressure present periodic variation, more effectively removes passivating film, the protection tool-electrode.
Described tool-electrode is except the bottom surface, and remaining surface is covered with insulating coating.Can adopt different electrode processing according to shape, the size of the narrow groove of processing, the form and dimensional precision of electrode directly affects size and the profile of part, the length of process time can affect the groove width size equally, in the situation that the accurate control time is more difficult, can be with electrode surface coating, only the section of keeping on file is working face.
The thickness of described coating is 2um-0.10mm.Coating can guarantee tool-electrode in processing during narrow groove, avoid the tool-electrode side due to process time length on the impact of notch dimensional accuracy.
Described power-supply device adopts the high frequency short duration current, has processing effect preferably.
Utilize above-mentioned ECM device to carry out the processing method of the narrow groove of electrochemistry processing as follows:
A, electrolyte and the concentration suitable according to the material selection of part to be processed are done sunykatuib analysis according to the dimensional accuracy of part to be processed to flow field, this class parameter of machining gap of ECM device, determine working fluid pressure, electric current; According to the current efficiency of selected electrolyte, the volume electrochemical equivalent of part material and the feed speed that current density is determined lathe.
B, according to the ECM device parameter that simulates, determine size, coat side and the coating layer thickness of tool-electrode, the processing and fabricating tool-electrode is according to required flow field configuration water jacket.
C, debugging ECM lathe, modulation dissolving electrolyte guarantees that concentration of electrolyte, pH value reach desired extent; Detect the induction hysteresis and wait impact, guarantee that vibrating mechanism is consistent with high frequency narrow arteries and veins power supply discharge frequency; The parameter of feed speed, supply voltage, water flow pressure, vibration frequency is set.
D, last with special fixture clamping, tool setting, coordinates water jacket to begin examination processing workpiece, and according to the actual measured results Optimal Parameters, through repeatedly adjusting, finally guaranteeing narrow groove dimensional accuracy after Optimal Parameters.
The utlity model has following beneficial effect, 1. be provided with vibrating mechanism on the lifting sliding seat, this vibrating mechanism effectively engagement tool electrode carries out work, removes fast and be formed on passivating film on the metal surface in the electrochemical discharge process; Vibrating mechanism can allow tool-electrode intermittently work, and allows simultaneously hydraulic pressure present periodic variation, more effectively removes passivating film, with the protection tool-electrode, increases the service life.
2. the utility model adopts high frequency narrow arteries and veins power supply, and the method that is engaged in the surperficial applying coating of tool-electrode makes electrode tool add man-hour at the material large to difficulty of processing (for example metal-base composites), can guarantee effectively that inside parts is without residualinternal stress, in order to obtain narrower slot pitch, the quality of improving product.
3. tool-electrode can be designed to various profiles, with difform processing needs in satisfied processing of producing and manufacture process.
Description of drawings
Fig. 1 is the structural representation of utility model ECM device.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.
ECM device as shown in Figure 1, on pedestal 8, connection frame 9, the holder 4 that is used for holding part 2 to be processed is installed on pedestal 8, one lifting sliding seat 5 is installed on frame 9, lifting sliding seat 5 is positioned at the top of holder 4, the interior vibrating mechanism 6 that arranges of lifting sliding seat 5, bottom installing electrodes fixture 3 and the tool-electrode 1 of lifting sliding seat 5.Tool-electrode 1 is except the bottom surface, and remaining surface is covered with insulating coating, and the thickness of coating is 2um-0.10mm, also is included as the power-supply device 7 that whole ECM device provides power supply, and it adopts the high frequency short duration current.
The utility model utilizes the operating procedure of the narrow groove of ECM machined as follows:
1, at first, electrolyte and the concentration suitable according to the material selection of part to be processed; According to the dimensional accuracy of part to be processed, the parameters such as the flow field of ECM machine, machining gap are done sunykatuib analysis, determine working fluid pressure, electric current; According to the current efficiency of selected electrolyte, the volume electrochemical equivalent of part material and the feed speed that current density is determined lathe.
2, according to the parameter that simulates, determine size, coat side, the coating layer thickness (being generally 2um-0.10mm) of tool-electrode, the purpose of coating is to guarantee tool-electrode when the narrow groove of processing, avoid the instrument side due to process time length on the impact of notch dimensional accuracy.The processing and fabricating tool-electrode designs and produces special-purpose water jacket according to required flow field (comprising pressure, the flow direction etc.).
3, debugging ECM lathe, modulation dissolving electrolyte guarantees that concentration of electrolyte, pH value reach desired extent; Detect the induction hysteresis and wait impact, guarantee that vibrating mechanism is consistent with high frequency narrow arteries and veins power supply discharge frequency; The parameters such as feed speed, supply voltage, water flow pressure, vibration frequency are set.
4, at last, with special fixture clamping, tool setting, coordinate water jacket to begin examination processing workpiece, and according to the actual measured results Optimal Parameters, by adjustment, Optimal Parameters are finally guaranteed narrow groove dimensional accuracy repeatedly.
When adopting the narrow groove of traditional handicraft processing, the notch both sides are very coarse, more can make part produce distortion when thin-walled material is softer.The thin-wall product that adopts the moving ECM of high frequency narrow pulsating of the present utility model to process, its shape is various, does not limit material technology, and notch both sides do not have burr.
Experimental result shows, adopts the moving ECM device of high frequency narrow pulsating of the present utility model to carry out the narrow groove of Electrolyzed Processing, with respect to conventional machining process, following advantage is arranged:
1, the Electrolyzed Processing principle is that metal anode is dissolved in electrolyte, belongs to electrochemical corrosion, thus add do not have man-hour residual should, can not cause part deformation;
2, under normal operation circumstances, negative electrode can not damage, therefore the uniformity of narrow groove is fine;
3, the size of the required negative electrode of Electrolyzed Processing, shape can accurately be controlled, therefore the groove width range of work of part is wider, can process difform narrow groove;
4, because negative electrode does not contact with part, therefore the notch of part is without burr, flange.
Should be understood that these embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (4)
1. the ECM device of the narrow groove of electrochemistry processing, comprise power-supply device and pedestal, frame is set on pedestal, it is characterized in that being provided for holding on described pedestal the holder of part to be processed, one lifting sliding seat is set on described frame, the described lifting sliding seat of gig arranges vibrating mechanism in the top of holder in described lifting sliding seat, and the bottom of described lifting sliding seat arranges electrode holder and tool-electrode.
2. the ECM device of the narrow groove of a kind of electrochemistry processing according to claim 1, is characterized in that described tool-electrode except the bottom surface, and remaining surface is covered with insulating coating.
3. a kind of electrochemistry according to claim 2 is processed the ECM device of narrow groove, and the thickness that it is characterized in that described coating is 2um-0.10mm.
4. the ECM device of the according to claim 1 and 2 or 3 narrow grooves of described a kind of electrochemistry processing, is characterized in that described power-supply device adopts the high frequency short duration current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220569324 CN202943344U (en) | 2012-10-31 | 2012-10-31 | Electrochemical machining (ECM) device of electrochemical machining narrow groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220569324 CN202943344U (en) | 2012-10-31 | 2012-10-31 | Electrochemical machining (ECM) device of electrochemical machining narrow groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202943344U true CN202943344U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220569324 Expired - Lifetime CN202943344U (en) | 2012-10-31 | 2012-10-31 | Electrochemical machining (ECM) device of electrochemical machining narrow groove |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909445A (en) * | 2012-10-31 | 2013-02-06 | 海宁市新艺机电有限公司 | ECM (Electrochemical Machining) device and machining method of electrochemical machining narrow groove |
| CN103862120A (en) * | 2014-03-17 | 2014-06-18 | 章华 | Molding method of valve throttle disc labyrinth slot |
| CN103962662A (en) * | 2014-05-15 | 2014-08-06 | 章华 | Method for forming valve mark |
-
2012
- 2012-10-31 CN CN 201220569324 patent/CN202943344U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909445A (en) * | 2012-10-31 | 2013-02-06 | 海宁市新艺机电有限公司 | ECM (Electrochemical Machining) device and machining method of electrochemical machining narrow groove |
| CN103862120A (en) * | 2014-03-17 | 2014-06-18 | 章华 | Molding method of valve throttle disc labyrinth slot |
| CN103962662A (en) * | 2014-05-15 | 2014-08-06 | 章华 | Method for forming valve mark |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |