CN108284258B - One kind being totally submerged formula wire electrochemical micro-machining fixture and radial fliud flushing method - Google Patents
One kind being totally submerged formula wire electrochemical micro-machining fixture and radial fliud flushing method Download PDFInfo
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- CN108284258B CN108284258B CN201810337152.9A CN201810337152A CN108284258B CN 108284258 B CN108284258 B CN 108284258B CN 201810337152 A CN201810337152 A CN 201810337152A CN 108284258 B CN108284258 B CN 108284258B
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- line electrode
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- inner cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/02—Electrical discharge machining combined with electrochemical machining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/14—Supply or regeneration of working media
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a kind of fixture for being totally submerged formula wire electrochemical micro-machining and radial fliud flushing methods, line electrode are fixed on above-mentioned fixture, are placed on above electrolytic cell；One end of flushing hole connects adjustable micro peristaltic pump, and the other end connects inner cavity, and the electrolyte in electrolytic cell is drawn into fixture by adjustable micro peristaltic pump and enters inner cavity by flushing hole, entire chuck body is run through in inner cavity；When workpieces processing, line electrode face workpiece is simultaneously fed to workpiece translation, when workpiece contacts with line electrode and starts Electrolyzed Processing, the processing product occurred in process is removed by the fliud flushing of relative motion and adjustable micro peristaltic pump between line electrode and workpiece.The present invention ensure that removal of the line electrode to the floccule and bubble that generate in workpiece process by dedicated fixture and fliud flushing method, the stability of the processing greatly improved, and easy to operate, easy to accomplish.
Description
Technical field
The present invention relates to one kind to be totally submerged formula wire electrochemical micro-machining fixture and radial fliud flushing method, belongs to micro-
Thin electrical-chemistry method technical field.
Background technique
With being constantly progressive for modern science and technology, the micromation of product and precise treatment become Main Trends of The Development it
One.More and more micro elements and micro-structure are applied among the industrial circles such as medical treatment, electronics, new energy, national defence.Constantly gush
Existing novel micro element and micro-structure have driven the manufacture demand of metal micro structure.Corresponding micro-processing technology becomes mesh
Before quickly grow, one of most dynamic science and technology, the great attention by countries in the world.
Micro Electrochemical Fabrication, micro Electrochemical Fabrication material transfer be carried out with ion scale, and
The size of metal ion is about 0.1nm even more small, and electrical-chemistry method also has that tool is lossless, workpiece surface to be machined
Unstressed, machined surface quality, it is unrelated with part material hardness the advantages that, therefore this processing technology is in field of micro-manufacture
There is very big development potentiality.Wire electrochemical micro-machining technology is one of numerous micro Electrochemical Fabrications, is
A kind of Electrolyzed Processing new method of cutting processing is carried out to workpiece using wire as tool cathode.Using metal wire as tool
Line electrode, line electrode are connected with power cathode, and workpiece connects positive pole.Line electrode and workpiece are in high-precision kinematic system
Under control, continuous relative motion is carried out by machining locus, electrochemical reaction, workpiece material quilt occur between workpiece and line electrode
Ablation finally processes required workpiece by desired trajectory.
It is well known that the size for processing gap determines the quality of processing in precise and tiny processing.But it is too small in processing gap
When, there are two crucial problems.Although needing to consume a large amount of electrolyte firstly, processing, under partial picture, it is totally submerged
Processing can generate certain influence to the electric double layer of workpiece surface in the electrolytic solution.
Secondly, the processing product (floccule and bubble) generated in process can not be discharged in time, and fresh electrolysis
Liquid can not also timely enter processing gap, floccule can prevent reaction progress, and bubble it will cause the bendings of line electrode very
To damage.Therefore, while guaranteeing lesser processing gap, how to guarantee that line electrode from the influence of liquid stream, promotes simultaneously
The discharge for processing gap Inner electrolysis product, which becomes, restricts the critical issue that electrolysis linear cutter technology actual application level improves.
Summary of the invention
In order to while guaranteeing lesser processing gap, prevent the bending of line electrode and promote processing gap Inner electrolysis
The discharge of product, the present invention provide one kind and are totally submerged formula wire electrochemical micro-machining fixture and radial fliud flushing method, lead to
It crosses dedicated fixture and fliud flushing method ensure that line electrode removes the floccule and bubble generated in workpiece process
It removes, the stability of the processing greatly improved, and easy to operate, it is easy to accomplish.
To achieve the above object, the present invention provides the following technical scheme that
A kind of fixture for wire electrochemical micro-machining, the fixture include chuck body, and the chuck body is
One rectangular-shape, a flushing hole is arranged on a face of the chuck body, and the flushing hole extends vertically through entire fixture
Ontology is connected to opposite, inwardly opens up an inner cavity in flushing hole outlet port, entire chuck body, flushing hole are run through in inner cavity
One end communicated with inner cavity；The two sides in the face of the inner cavity are symmetrical arranged two screws, for locking line electrode, line electrode at
"U" shaped tenses connection by two screws, and a line passes through by the face where inner cavity and above inner cavity.
The face adjacent where face and inner cavity where two screws is cut into cambered surface.
The inner cavity is rectangular-shape groove.
A kind of radial fliud flushing method being totally submerged formula wire electrochemical micro-machining, includes the following steps:
(1), line electrode is fixed on above-mentioned fixture, submergence is in the electrolytic solution；
(2), one end of flushing hole connects adjustable micro peristaltic pump, and the other end connects inner cavity,；
(3), in the electrolytic solution workpieces processing when, line electrode face workpiece simultaneously to workpiece be translatable feed, when workpiece and line electricity
When pole contacts and starts Electrolyzed Processing, pass through the fliud flushing of relative motion and adjustable micro peristaltic pump between line electrode and workpiece
Remove the processing product occurred in process.
The method of relative motion between above-mentioned steps central electrode and workpiece is as follows:
Industrial personal computer carries out axially reciprocating a little by motion control card control clamp strap moving-wire electrode, to utilize line
The wall surface viscosity of electrode drives processing product to leave processing gap, and then participates in fresh electrolyte in reaction.
The method of the fliud flushing of adjustable micro peristaltic pump is as follows in above-mentioned steps:
After the bubble processed in product is brought away from processing gap, the lower regions in processing gap can be largely close in, are led to
It crosses adjustable micro peristaltic pump and radial fliud flushing is carried out to line electrode and its near zone, processing product is blown off and processes gap, is guaranteed
Processing is gone on smoothly.
Advantageous effects of the invention:
This method meets the requirement of micro-electrochemical machining wire cutting, in minimum processing gap, effectively removes electrolysis
Bubble caused by processing and floccule, admirably ensure that processing quality and processing efficiency.It meanwhile being also fine electrical fire
Liquid-charging type in flower processing provides a kind of feasible thinking.Therefore the present invention has preferable transplantability and exploitability, fits
Close further further investigation and development.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fixture；
Fig. 2 is the schematic perspective view of fixture；
Fig. 3 is the process schematic diagram of line electrode and workpiece；
Fig. 4 is that line electrode and workpiece feed machining sketch chart；
Fig. 5 is the schematic diagram that line electrode axially moves back and forth a little along itself.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, 2, 3, a kind of fixture for wire electrochemical micro-machining, the fixture include chuck body 5,
The chuck body 5 is a rectangular-shape, and a flushing hole 1, the flushing hole is arranged on a face of the chuck body 5
1, which extends vertically through entire chuck body 5, is connected to opposite, inwardly opens up an inner cavity 4 in 1 outlet port of flushing hole, inner cavity 4 is passed through
Entire chuck body 5 is worn, one end of flushing hole 1 is communicated with inner cavity 4；The two sides in the face of the inner cavity 4 are symmetrical arranged two spiral shells
Nail 2, for locking line electrode 3, line electrode 3 tenses connection by two screws 2 at "U" shaped, and a line passes through where inner cavity 4
Face and pass through above inner cavity 4.
The face adjacent where face and inner cavity 4 where two screws 2 is cut into cambered surface.
The inner cavity 4 is rectangular-shape groove.
A kind of radial fliud flushing method being totally submerged formula wire electrochemical micro-machining, includes the following steps:
(1), line electrode 3 is fixed on above-mentioned fixture, submergence is in the electrolytic solution；
(2), one end of flushing hole 1 connects adjustable micro peristaltic pump, and the other end connects inner cavity 4；
(3), in the electrolytic solution workpieces processing 6 when, 3 face workpiece 6 of line electrode simultaneously to workpiece 6 be translatable feed, when workpiece 6 with
Line electrode 3 contacts and when starting Electrolyzed Processing, as shown in Figure 4, Figure 5, by the relative motion between line electrode 3 and workpiece 6 with
And the fliud flushing of adjustable micro peristaltic pump removes the processing product occurred in process.
The method of relative motion between 3 central electrode 3 of above-mentioned steps and workpiece 6 is as follows:
Industrial personal computer carries out axially reciprocating a little by motion control card control clamp strap moving-wire electrode 3, to utilize
The wall surface viscosity of line electrode 3 drives processing product to leave processing gap, and then participates in fresh electrolyte in reaction.
The method of the fliud flushing of adjustable micro peristaltic pump is as follows in above-mentioned steps 3:
After the bubble processed in product is brought away from processing gap, the lower regions in processing gap can be largely close in, are led to
It crosses adjustable micro peristaltic pump and radial fliud flushing is carried out to line electrode 3 and its near zone, processing product is blown off and processes gap, is guaranteed
Processing is gone on smoothly.
After electrolyte enters inner cavity by flushing hole, since inner cavity is the semi-enclosed structure of only one side opening, so
The wall surface viscosity of inner cavity stays in electrolyte " " in inner cavity and participates in electrochemical reaction, and continually the electrolyte into inner cavity can
To promote the update of electrolyte in the lumen.
Embodiment:
In the present embodiment, include two relative motions between line electrode and workpiece.It is line electrode and workpiece first
Between feed motion；Referring to attached drawing 4, as shown, line electrode and workpiece under the control of high-precision kinematic system, are pressed and are added
Work track carries out continuous relative motion, electrochemical reaction occurs between workpiece and line electrode, workpiece material is finally pressed by ablation
Desired trajectory processes required workpiece.
But in process, a large amount of processing product, i.e. bubble and floccule can be generated in processing gap.Bubble
Presence with floccule easily leads to the bending of line electrode, largely affects the progress of processing, then the process of wire transporting
It is essential, as shown in Figure 5.Line electrode along itself axially moved back and forth a little (left arrow refer to line electrode into
Give, the arrow on right side refers to the reciprocating motion a little of line electrode), line electrode wall surface viscosity drives along processing gap electrolyte inside
" flowing " of electrode axial direction takes bubble and floccule out of processing gap, alleviates these processing products for machine process
Interference.
But even if bubble and floccule are carried over processing gap, also can bulk deposition above and below processing gap.This feelings
Shape can be such that other processing products are not discharged further, and fresh electrolyte can not also rapidly enter in processing gap, greatly
Machining accuracy and efficiency are hindered, then next process is fliud flushing process.
Workpiece in Fig. 3 to be in electrochemical machining process.The schematic diagram of fliud flushing is as shown in Figure 3.When bubble is brought away from
After processing gap, the lower regions in processing gap can be largely close in, at this time again by adjustable micro peristaltic pump to as line electricity
The tungsten wire and its near zone of pole carry out radial fliud flushing, and gap is processed in processing product " blowing off ", guarantees going on smoothly for processing.
Since inner cavity exists in the form of through slot in fixture, adjustable micro peristaltic pump is allowed to carry out fliud flushing with relatively large flow velocity,
Processing efficiency can be significantly improved.The specific flow velocity of adjustable micro peristaltic pump can freely regulate and control in tens of milliliters per minute.
When bubble is present in processing gap, line electrode can be easy to cause to be bent, processing quality also receives very big
It influences.During fliud flushing, on the one hand the liquid gone out can remove the bubble and floccule in processing gap well, together
Shi Gengxin processes the electrolyte in gap；But on the other hand, the radial force that the liquid gone out is given, it is also possible to lead to line
The bending of electrode is to influence the processing quality of joint-cutting.The concrete measure for solving this problem includes adjustable micro peristaltic pump
Using and pre-tensioner measure execution.The use of adjustable micro peristaltic pump can make flow velocity free in per minute in tens of milliliters
It changes, alleviate leads to the curved risk of line electrode since flow velocity is excessive to the full extent.Simultaneously as shown in Figure 1, line electrode
Tightness is controlled by screw, before processing, is done a degree of pre-tensioner measure by screw, is enhanced the rigid of line electrode
Property, it is possible to prevente effectively from part line electrode is because rigidity is not enough bent the situation impacted so as to cause processing quality.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of fixture for wire electrochemical micro-machining, it is characterised in that: the fixture includes chuck body (5), institute
Stating chuck body (5) is a rectangular-shape, and a flushing hole (1), the punching is arranged on a face of the chuck body (5)
Fluid apertures (1) extends vertically through entire chuck body (5) and is connected to opposite, inwardly opens up in one in flushing hole (1) outlet port
Entire chuck body (5) are run through in chamber (4), inner cavity (4), and one end of flushing hole (1) is communicated with inner cavity (4)；The face of the inner cavity (4)
Two sides be symmetrical arranged two screws (2), for locking line electrode (3), line electrode (3) at "U" shaped pass through two screws
(2) connection is tensed, a line passes through through the face where inner cavity (4) and above inner cavity (4).
2. a kind of fixture for wire electrochemical micro-machining according to claim 1, it is characterised in that: two screws
(2) the face adjacent where face and inner cavity (4) where is cut into cambered surface.
3. a kind of fixture for wire electrochemical micro-machining according to claim 1, it is characterised in that: the inner cavity
It (4) is rectangular-shape groove.
4. a kind of radial fliud flushing method for being totally submerged formula wire electrochemical micro-machining, it is characterised in that include the following steps:
(1), by line electrode (3) fixed fixture described in claim 1, submergence is in the electrolytic solution；
(2), one end of flushing hole (1) connects adjustable micro peristaltic pump, and the other end connects inner cavity (4)；
(3), in the electrolytic solution workpieces processing (6) when, line electrode (3) face workpiece (6) simultaneously to workpiece (6) be translatable feed, work as work
When part (6) contacts with line electrode (3) and starts Electrolyzed Processing, by relative motion between line electrode (3) and workpiece (6) and
The fliud flushing of adjustable micro peristaltic pump removes the processing product occurred in process.
5. a kind of radial fliud flushing method for being totally submerged formula wire electrochemical micro-machining according to claim 4, special
Sign is: the method for the relative motion between step (3) central electrode (3) and workpiece (6) is as follows:
Industrial personal computer carries out axially reciprocating a little by motion control card control clamp strap moving-wire electrode (3), to utilize line
The wall surface viscosity of electrode (3) drives processing product to leave processing gap, and then participates in fresh electrolyte in reaction.
6. a kind of radial fliud flushing method for being totally submerged formula wire electrochemical micro-machining according to claim 4, special
Sign is: the method for the fliud flushing of adjustable micro peristaltic pump is as follows in the step (3):
After the bubble processed in product is brought away from processing gap, the lower regions in processing gap can be largely close in, by can
It adjusts micro peristaltic pump to carry out radial fliud flushing to line electrode (3) and its near zone, processing product is blown off and processes gap, guarantee to add
Work is gone on smoothly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337152.9A CN108284258B (en) | 2018-04-16 | 2018-04-16 | One kind being totally submerged formula wire electrochemical micro-machining fixture and radial fliud flushing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337152.9A CN108284258B (en) | 2018-04-16 | 2018-04-16 | One kind being totally submerged formula wire electrochemical micro-machining fixture and radial fliud flushing method |
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| CN108284258A CN108284258A (en) | 2018-07-17 |
| CN108284258B true CN108284258B (en) | 2019-09-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994403B (en) * | 2018-08-29 | 2020-11-17 | 河海大学常州校区 | Superfine wire electrode tensioning clamp with piezoelectric effect component |
| CN109014461B (en) * | 2018-08-29 | 2020-05-19 | 河海大学常州校区 | Online detection and adjustment method for tension of wire electrode |
| CN108971679B (en) * | 2018-08-29 | 2020-06-09 | 河海大学常州校区 | Superfine wire electrode tensioning clamp with heat sensitive component |
| CN109014460B (en) * | 2018-08-29 | 2020-11-17 | 河海大学常州校区 | Micron-sized tensioning clamp for superfine line electrode in micro-electrolysis line cutting |
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| JP2002036032A (en) * | 2000-07-28 | 2002-02-05 | Olympus Optical Co Ltd | Electrolytic deburring device and electrolytic deburring method |
| CN1615199A (en) * | 2002-03-28 | 2005-05-11 | 三菱电机株式会社 | Working liquid ejector of wire electric discharge machine |
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Granted publication date: 20190910 |