KR20200017852A - Electrochemical machining apparatus using magnetic electrode induction and electrochemical machining method using the same - Google Patents

Abstract

The present invention relates to an electrochemical machining apparatus using magnetic electrode induction wherein movement of a tool for electrochemical machining is controlled outside a workpiece to facilitate machining for the internal part of the workpiece, and an electrochemical machining method using the same. According to the present invention, the electrochemical machining apparatus using the magnetic electrode induction comprises: a table supporting a workpiece; a moving electrode tool performing electrochemical machining while moving to a machining region of the workpiece; an electrode movement guide unit including a magnetic part to control the advancing direction of the moving electrode tool; an electrolyte supply unit supplying an electrolyte to the workpiece; and a power supply unit supplying power to the workpiece to perform electrochemical machining.

Description

Electrochemical machining apparatus using magnetic electrode induction and electrochemical machining method using the same {Electrochemical machining apparatus using magnetic electrode induction and electrochemical machining method using the same}

The present invention relates to an electrochemical processing apparatus using magnetic electrode induction and an electrochemical processing method using the same, and more particularly, to control the movement of a tool for electrochemical processing from the outside of the object to be processed to the inside of the object. The present invention relates to an electrochemical processing apparatus using magnetic electrode induction and an electrochemical processing method using the same.

Electrochemical processing works on the principle of electrocorrosion. For this purpose, the workpiece is contacted with the anode and the tool is contacted with the cathode. The conductive liquid, also referred to as electrolyte, is pumped through a working gap between the workpiece and the tool.

When a voltage is applied between the workpiece and the tool, current flows to start electrolysis, whereby metal ions are released from the workpiece, and electrochemical machining of the set zones takes place.

This electrochemical machining technology has no difficulty in maintaining precision due to the wear of the tool, compared to the conventional machining technique by physical contact, and machining can be performed at a location that is difficult to access, and in particular, simultaneous machining at various points on the workpiece. There is an advantage that this is possible. Moreover, as mentioned above, since no direct contact occurs between the tool and the workpiece, machining takes place virtually without wear, ensuring a very constant process quality and not causing mechanical stresses or thermal effects to the workpiece to be machined.

The conventional electrochemical processing apparatus adjusts the machining position with respect to the workpiece by moving the tool through a control mechanism such as a six-axis robot outside the workpiece. However, in this type of electrochemical processing device, the surface of the object is easily processed, but the machining inside the object is difficult.

Korean Laid-Open Patent No. 10-2010-0058538: Method and apparatus for electrochemical processing Korean Registered Patent No. 10-1053371: ECM Processing Equipment

The present invention has been made to solve the above problems, by controlling the movement of the moving electrode tool entered into the inside of the object from the outside of the object to be easily made electrochemical processing and electrochemical polishing on the inside of the object to be processed. An object of the present invention is to provide an electrochemical processing apparatus using magnetic electrode induction and an electrochemical processing method using the same.

Electrochemical processing apparatus using the magnetic electrode induction according to the present invention is a table for supporting the object to be processed, a moving electrode tool for performing electrochemical processing while moving to the processing target region of the object, the progress of the mobile electrode tool An electrode transfer guide unit including a magnetic to control the direction, an electrolyte supply unit for supplying an electrolyte solution to the processing object, and a power supply for applying power to the electrochemical processing to the processing object.

It is preferable to further include a position tracking unit for tracking the position of the mobile electrode tool.

The electrode transfer guide unit is a cylindrical rotary part for rotating based on a rotating shaft extending in one direction on both sides of the table, a guide rail formed to extend along the circumferential direction on the inner circumferential surface of the cylindrical rotating portion, and travel along the guide rail It may include, the rail running body including the magnetic, and the movement control unit for driving the cylindrical rotating portion and the rail running body to move the rail running body to a position corresponding to the movement path of the moving electrode tool. desirable.

The movable electrode tool includes a movable body and a fixed magnet fixedly installed inside the movable body, and a fixed magnet for tracking the magnetic of the electrode transfer guide unit, wherein the position tracking unit is provided inside the movable body and adjusts the position of the movable body. It is preferable to include a position tracking sensor for transmitting a signal so that it can be traced, and a signal receiving unit for receiving a signal transmitted from the position tracking sensor.

The moving electrode tool may further include a cathode line which is connected to one side of the movable body and formed with an insulating coating to polish the processed surface after the processing is performed on the object while the movable body moves.

Insulating beads may be formed in the cathode line to be spaced apart from each other by a predetermined distance along the longitudinal direction.

Preferably, the movable body of the mobile electrode tool is provided with a conductive layer connected to the front of the cathode.

A transmission power transmitter for wireless power transmission and a reception power for receiving power from the transmission power transmitter so that the mobile electrode tool can be powered by a wireless power transmission method; A positive pole transmitter which extends and is connected to a coil, the moving object from the moving object to the workpiece, and transmits a positive pole of the power received by the receiving power coil, and a negative pole transmitting unit which transmits a negative pole from the receiving power coil to the moving object. It can be provided.

The transmitting power transmitter and the receiving power coil may be formed to perform a magnetic resonance type power transmission using a magnetic resonance phenomenon.

The electrochemical processing method according to the present invention comprises the steps of seating the object on the table, arranging a mobile electrode tool on one side of the object, supplying an electrolyte solution to the object and the mobile electrode tool, and Connecting a cathode power source to the object to be processed and a cathode electrode to the moving electrode tool, and controlling the moving electrode tool to be moved to a position for processing by using a fixed magnet built into the moving electrode tool through an electrode transfer guide unit; Steps.

The movable electrode tool includes a movable body in which the fixed magnet is embedded, and a cathode line connected to the movable body and extending along the moving path of the movable body, and after completion of processing of the object by the movable electrode tool, Removing, connecting a cathode power source to the cathode line, supplying an electrolyte solution to a processing portion where the cathode line extends, and connecting an anode power source to the object to be processed to polish the processed surface by the moving body. can do.

According to the electrochemical processing apparatus using the magnetic electrode induction and the electrochemical processing method using the same according to the present invention to control the movement of the moving electrode tool from the outside of the object, a separate actuator or robot for controlling the position of the moving electrode tool Since it is not necessary, the processing convenience for the object to be processed may be increased.

1 is a conceptual diagram of an embodiment of an electrochemical processing apparatus using magnetic electrode induction according to the present invention,
2 is a view showing a first embodiment of a moving electrode tool of the present invention;
3 is a view showing a state in which the object to be processed electrochemical processing by the moving electrode tool of FIG.
4 is a view of a second embodiment of a moving electrode tool;
5 is a view of a third embodiment of a mobile electrode tool to which a wireless power transmission method is applied;
6 is a view showing a process in which the moving electrode tool proceeds while processing the object by the electrode transfer guide unit,
7 is a view of a state of undergoing electrochemical polishing after processing.

Hereinafter, an electrochemical processing apparatus using magnetic electrode induction and an electrochemical processing method using the same will be described in detail with reference to the accompanying drawings. As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structures are shown in an enlarged scale than actual for clarity of the invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 conceptually illustrates the configuration of one embodiment of an electrochemical processing apparatus 10 using magnetic electrode induction of the present invention.

Electrochemical processing apparatus 10 using the magnetic electrode induction of the present embodiment is a table 100 for supporting the object to be processed (1), the movable electrode is connected to the negative electrode power source for performing electrochemical processing on the object (1) The tool 200, the electrode transfer guide unit 300 for controlling the moving direction of the moving electrode tool 200, the position tracking unit 400 for tracking the position of the moving electrode tool 200, and the electrolyte It is provided with an electrolyte supply unit 500 for supplying, and a power supply unit 600 for applying power.

The movable electrode tool 200 has a fixed magnet 220 is formed therein, the electrode transfer guide unit 300 is driven to control the traveling direction through the fixed magnet 220.

The electrode transfer guide unit 300 is formed on the inner circumferential surface of the cylindrical rotating part 310 and the cylindrical rotating part 310 to rotate based on the rotation axis connecting both sides of the table 100 on which the processing object 1 is seated And a guide rail 320, a rail running body 330 traveling along the guide rail 320, and a movement controller 350 for controlling positions of the cylindrical rotating part 310 and the rail running body 330.

Cylindrical rotating part 310 is formed in a cylindrical shape having an inner diameter larger than the width of the table 100, it is possible to rotate around the rotation axis. Although not shown, the rotating shaft 310 is provided with a stepping motor or an actuator connected to the rotating member 310 or the rotating shaft 310 so that the rotating member 310 can be rotated on the rotating shaft 310. ) Can be controlled.

The inner circumferential surface of the cylindrical rotating part 310 is provided with a guide rail 320 extending along the circumferential direction, and the rail running body 330 may travel the inner circumferential surface of the cylindrical rotating part 310 along the guide rail 320. It is formed to be.

Traveling of the rail running body 330 is also controlled by the movement control unit 350.

The rail running body 330 is provided with a control magnet 340 for the moving magnet to control the moving direction of the moving electrode tool 200. Accordingly, when the cylindrical rotating unit 310 is rotated by the movement control unit 350, and the moving driving body moves along the guide rail 320, the rail driving body 330 corresponds to the direction in which the moving electrode tool 200 should proceed. The position of the fixed magnet 220 of the moving electrode tool 200 is dragged to the control magnet 340 to control the moving direction of the moving electrode tool 200.

The position tracking unit 400 calculates position information by tracking the position of the moving electrode tool 200, and includes a position tracking sensor 410 embedded in the moving electrode tool 200, and the position tracking sensor 410. It includes a signal receiving unit 420 for receiving a signal transmitted from.

The signal receiver 420 is provided in plural so as to be adjacent to the table 100, and accurately calculates the position of the mobile electrode tool 200 through the signal transmitted from the position tracking sensor 410 received by the signal receiver 420. can do.

The position information of the moving electrode tool 200 obtained by the position tracking unit 400 is transmitted to the movement control unit 350, and the movement control unit 350 is based on the tracking information of the position tracking unit 400. Cylindrical rotary part 310 and the rail driving 쳉 to control the position of the 200.

The electrolyte supply unit 500 supplies an electrolyte solution for electrochemical processing, and includes an electrolyte tank 510 and a supply pump 520.

The electrolyte tank 510 stores an electrolyte solution made of sodium chloride (NaCl) or other liquids through which electricity can flow, and is supplied to the object 1 through a supply pump 520.

Although not shown, the electrolyte solution supplied to the object to be processed 1 is recovered again, and the foreign matter is filtered and then supplied again to the electrolyte tank 510, and may be reused.

The supply of the electrolyte may also be controlled by the movement control unit 350, or may be supplied and recovered through separate control means.

The mobile electrode tool 200 is connected to a cathode power source for electrochemical processing, and includes a moving body 210 and a fixed magnet 220 provided inside the moving body 210 as shown in FIG. 2. .

The movable body 210 may be formed in a spherical shape having a predetermined internal space, a conductive layer 211 is formed on the outer circumferential surface, and the fixed magnet 220 is a control magnet provided in the rail running body 330. The moving direction of the moving body 210 is guided by tracking 340.

The movable body 210 has a protruding bead 212 protruding outward from the outer circumferential surface, the protruding height of the protruding bead 212 is relatively larger than the thickness of the conductive layer 211. Therefore, the conductive layer 211 does not directly contact the surface of the object 1 by the protruding bead 212.

The position tracking sensor 410 is provided at one side of the inside of the moving body 210 and transmits the position information of the moving body 210.

As shown in FIG. 3, the moving electrode tool 200 tracks the control magnet 340 formed on the rail running body 330 even in the inside of the object 1, so that the moving electrode tool 200 is moved. When the electrolyte is supplied inside, electrochemical processing is performed.

4 shows a second embodiment of the moving electrode tool 200.

In the movable electrode tool 200 of the present embodiment, the cathode line 230 is connected to the rear of the movable body 210, and the insulating line 231 is formed in the cathode line 230 to be spaced a predetermined distance along the longitudinal direction. have.

The cathode line 230 is formed for the polishing process, after the processing is made inside the object 1 through electrochemical processing, the moving body 210 is separated, and the cathode line in the state filled with the electrolyte solution When the cathode power source is connected to the 230, the surface of the processing unit may be polished to form a smooth processing surface.

The moving electrode tool 200 may be formed to be wirelessly powered as shown in FIG. 5.

In this case, a magnetic resonance power transmission method using magnetic resonance may be applied. A power supply unit 600 for supplying power is provided to be adjacent to the object to be processed 1, and the power supply unit 600 includes a power transmitter for transmission. 610 is provided. The transmission power transmitter 610 is a coil for power transmission.

The moving electrode tool 200 is provided with a receiving power coil 240 for receiving power from the transmission power transmitter 610 inside the moving body 210 as shown in FIG.

The receiving power coil 240 transmits power from the transmitting power transmitter 610 by a magnetic resonance phenomenon, and the negative power of the receiving power coil 240 is connected to the moving object 210 through the negative electrode transmitting unit 241. It is transmitted to the electrode layer formed in the front, the positive electrode power is connected to the object to be processed (1) through the positive electrode transmission unit 242 is extended from the moving object 210 to the object to be processed (1).

In this embodiment, since a separate power transmission line does not need to be provided to supply power to the moving body 210, the moving body 210 can be more freely moved and the configuration can be simplified.

Referring to the electrochemical processing through the electrochemical processing apparatus 10 using the magnetic electrode induction of the present invention described above are as follows.

First, the workpiece 1 is placed on the tail, and then the moving electrode tool 200 is disposed on the workpiece 1.

The cathode is connected to the moving electrode tool 200 and the anode power source is connected to the object 1 while supplying the electrolyte. The object 1 is then processed by electrochemical processing, as shown in FIG. 6, by controlling the movement of the cylindrical rotating part 310 and the rail running body 330, the magnet 340 for controlling the rail running body 330. If the position of the control panel 220 is embedded in the moving electrode tool 200, the fixed magnet 220 proceeds while tracking the control magnet 340, so that the machining can be performed while controlling the moving direction of the moving electrode tool 200. have.

After the processing is completed, the moving body 210 is separated as shown in FIG. 7, the negative electrode is connected to the negative electrode line 230 connected to the moving body 210 along the processing unit, and the electrolyte is supplied to provide polishing. Conduct.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention should not be limited to the embodiments set forth herein but should be construed in the broadest scope consistent with the principles and novel features set forth herein.

1: object
10: electrochemical processing apparatus using magnetic electrode induction
100: table
200: moving electrode tool
210: mobile body 211: conductive layer
212: protruding bead 220: fixed magnet
230: cathode line 231: insulated beads
240: power coil for receiving 241: negative electrode transmission unit
42: positive electrode transmission unit
300: electrode transfer guide unit
310: cylindrical rotating portion 320: guide rail
330: rail driving body 340: control magnet
350: movement control unit
400: location tracking unit
410: location tracking sensor 420: signal receiving unit
500: electrolyte supply unit
510: electrolyte tank 520: supply pump
600: power supply
610: power transmitter for transmission

Claims (11)

A table for supporting the object to be processed;
A moving electrode tool for performing electrochemical processing while moving to the processing target region of the processing target;
An electrode transfer guide unit including a magnetic to control a traveling direction of the moving electrode tool;
An electrolyte supply unit supplying an electrolyte solution to the object to be processed;
Electrochemical processing apparatus using a magnetic electrode induction characterized in that it comprises a power supply for applying power to proceed the electrochemical processing to the object.
The method of claim 1,
Electrochemical processing apparatus using a magnetic electrode induction characterized in that it further comprises a position tracking unit for tracking the position of the moving electrode tool.
The method of claim 1,
The electrode transfer guide unit has a cylindrical rotating portion for rotating based on a rotating shaft extending in one direction on both sides of the table,
A guide rail formed to extend in a circumferential direction on an inner circumferential surface of the cylindrical rotating part;
A rail driving body capable of traveling along the guide rail and including the magnetic;
And a movement control unit for driving the cylindrical rotating unit and the rail running body to transfer the rail running body to a position corresponding to the moving path of the moving electrode tool.
The method of claim 2,
The moving electrode tool is a moving body,
It is fixed to the inside of the moving body, including a fixed magnet for tracking the magnetic of the electrode transfer guide unit,
The position tracking unit is provided in the inside of the moving body and the position tracking sensor for transmitting a signal to track the position of the moving body,
Electrochemical processing apparatus using a magnetic electrode induction comprising a signal receiving unit for receiving a signal transmitted from the position tracking sensor.
The method of claim 4, wherein
The movable electrode tool further comprises a cathode line which is connected to one side of the movable body and is insulated and coated with copper wire in order to polish the processed surface after processing is performed on the object while the movable body is moved. Electrochemical processing apparatus using electrode induction.
The method of claim 5,
Insulating beads are formed in the cathode line to be spaced apart from each other by a predetermined interval along the longitudinal direction electrochemical processing apparatus using the magnetic electrode induction.
The method of claim 4, wherein
The movable body of the mobile electrode tool is an electrochemical processing apparatus using a magnetic electrode induction, characterized in that the conductive layer is formed on the front surface connected to the cathode.
The method of claim 4, wherein
The mobile electrode tool can be powered by a wireless power transmission method,
A power transmitter for transmission for wireless power transmission,
A reception power coil formed in the mobile electrode tool, for receiving power from the transmission power transmitter;
A positive pole transmitter which extends from the movable body to the object to be processed and transmits positive poles of the power received by the receiving power coil;
Electrochemical processing apparatus using the magnetic electrode induction characterized in that it further comprises a negative electrode transmission unit for transmitting the negative electrode from the receiving power coil to the moving body.
The method of claim 8,
The transmitting power transmitter and the receiving power coil are electrochemical processing apparatuses using magnetic electrode induction, characterized in that formed to perform the magnetic resonance-type power transmission using the magnetic resonance phenomenon.
Mounting the object on a table;
Disposing a moving electrode tool on one side of the object;
Supplying an electrolyte solution to the object to be processed and the moving electrode tool;
Connecting a cathode power source to the workpiece and a cathode power source to the moving electrode tool;
An electrochemical machining method comprising the step of controlling the moving electrode tool to move to a position for processing by using the fixed magnet built into the moving electrode tool through the electrode transfer guide unit of claim 3.
The method of claim 10,
The movable electrode tool includes a movable body in which the fixed magnet is embedded, and a cathode line connected to the movable body and extending along the moving path of the movable body,
After the processing of the object to be processed by the mobile electrode tool, the moving body is removed, the negative electrode is connected to the negative electrode line, the negative electrode line is supplied with the electrolyte solution, and the positive electrode is connected to the object to be processed. And polishing the processed surface processed by the moving body.

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