KR101876269B1 - Small hole electric discahrging machine having function of automatically changing electrod - Google Patents

Abstract

The present invention relates to a small-hole electric discharging machine having a function of automatically changing an electrode. Also, the present invention relates to a small-hole electric discharging machine having a function of automatically changing an electrode guide and an electrode and a function of cutting the electrode. The small-hole electric discharging machine includes a machining frame vertically extending and being able to lift; an electrode chuck being able to lift along the machining frame, an electrode to be processed being mounted to a lower portion of the electrode chuck; a guide chuck engaged to a lower portion of the machining frame and mounted with an electrode guide for receiving and guiding a lower end of the electrode which is mounted to the electrode chuck; an electrode holder rotatably installed to one side of the machining frame and provided with a plurality of electrode along a circumference thereof at regular intervals; an electrode holding part mounted to the electrode chuck to hold the electrode to be replaced or the electrode held by the electrode holder; and a first horizontal transfer device for reciprocating the electrode holding part in a horizontal direction to transfer the electrode held by the electrode holder to the lower portion of the electrode chuck or to transfer the electrode mounted to the electrode chuck to the electrode holder.

Description

TECHNICAL FIELD [0001] The present invention relates to an electrodeless discharge machining apparatus having an electrode automatic replacement function,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hemostatic discharge machining apparatus, and more particularly, to a hemostatic discharge machining apparatus capable of automatically replacing a discharge electrode. Further, the present invention relates to a blood-stem electric discharge machine equipped with an electrode, an electrode guide automatic replacement and an electrode cutting function.

Generally, a small hole drilling electric discharge machine is a device that processes a fine hole with a diameter of 0.05mm to 6.0mm by discharging using a discharge electrode. In recent years, . Meanwhile, since the discharge electrode is repeatedly applied with the pulse voltage, the electrode portion of the discharge electrode is continuously worn out. When the discharge electrode becomes less than a certain length, the discharge electrode is replaced with a new discharge electrode. Should be done. However, in the case of the conventional electrodeless discharge machine, when the discharge electrode is worn out and needs to be replaced, the discharge electrode needs to be replaced by the operator at a predetermined cycle, so that it takes a long time to replace the discharge electrode. Further, since the worker must directly determine the length of the discharge electrode and then determine whether to replace the discharge electrode, if the replacement time of the discharge electrode is delayed even a little, the drilling operation can not be performed accurately, There is a problem.

Thus, in Korean Patent No. 1051042 'Super Drill equipped with an electrode exchanger', a technique of automatically replacing a tube electrode (i.e., a discharge electrode) has been proposed, but a finger having a long plate has a long discharge The discharge electrode is shaken because the electrode is placed in a state in which it is laid over the electrode, so that the storage state is unstable and it is difficult to replace the electrode. In addition, since the discharge electrode is composed of the electrode head and the electrode, and the electrode guide for holding the electrode is not provided with the guide replacement device for automatically replacing the electrode guide even though it is necessary to replace it according to the standard to be used for machining, It takes a long time and it is difficult to select suitable guides.

On the other hand, the discharge electrode wears on the end portion due to friction during processing as time goes on, and the discharge effect is lowered. In this case, the electrode needs to be replaced when the end wear is severe. In the case of replacing the electrode, it takes a long time, so it is advantageous in terms of work efficiency to prolong the replacement period. However, if the replacement cycle is long, the work must be performed with the worn electrode, which lowers the processing accuracy. Therefore, there is a demand for a technique capable of maintaining the machining accuracy at a high level while prolonging the replacement period of the electrode.

Korean Patent No. 1051042 Korea Patent No. 1548262

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a blood-stem electric discharge machine capable of automatically replacing a discharge electrode by a simple method. It is another object of the present invention to provide a blood-stem electric discharge machining apparatus capable of automatically replacing not only electrodes but also electrode guides, and capable of cutting end portions of worn electrodes.

To this end, a blood-stem electric discharge machining apparatus according to the present invention comprises: a processing frame extending vertically and configured to be movable up and down; An electrode chuck configured to be movable up and down along the machining frame and having a work electrode mounted on a lower side thereof; A guide chuck mounted on the lower side of the processing frame and equipped with an electrode guide for guiding the lower end of the electrode mounted on the electrode chuck to be inserted therethrough; An electrode holder configured to be rotatable on one side of the processing frame and configured such that a plurality of electrodes are spaced apart from each other by a predetermined distance; An electrode finger disposed on the electrode chuck to hold an electrode to be replaced or an electrode held in the electrode holder; And a first horizontal transfer device configured to horizontally reciprocate the electrode finger to transfer the electrode placed on the electrode holder to the lower side of the electrode chuck or to transfer the electrode mounted on the electrode chuck to the electrode holder .

Here, the electrode holder is formed in a disk shape, and a plurality of mounting grooves, on which the electrode-coupling sockets are mounted, are continuously arranged around the outer circumferential surface of the electrode holder.

And, the blood-cleaning electric discharge machine according to the present invention comprises: a motor; A driving gear rotated according to the motor driving; A driven gear coupled to the electrode holder and rotating the electrode holder as it rotates in engagement with the drive gear; And a fixed disk disposed at the lower side of the electrode holder and protruding from a central axis inserted into the center of the electrode holder and the driven gear at a center thereof and coupled with the first horizontal transfer device at a lower side thereof.

Here, the electrode fingers may have a clamping structure to hold the electrode head coupled to the upper end of the electrode.

The first horizontal transfer device is composed of an air cylinder, and the first horizontal transfer device is horizontally disposed such that the cylinder rod is laterally oriented. A vertical bar arranged vertically in parallel with the electrode is coupled to the end of the cylinder rod. And the electrode finger is coupled to the upper end of the vertical bar.

In addition, the lower end of the vertical bar is provided with a guide piece having a V-shaped concave groove formed therein so as to support and guide the electrode when the electrode is transferred.

The guide supply unit may further include a rotary cylinder, a rotary cylinder whose one end is coupled to the rotary cylinder and is rotated in a horizontal direction, and the other end of the rotary cylinder is connected to the other end of the rotary cylinder, And a rotary disk which is rotatably coupled and has a plurality of electrode guides accommodated and mounted around the periphery thereof.

A motor installed at a side of the rotary disk of the rotary arm so as to penetrate the rotary arm with the motor shaft disposed vertically downward; A drive pulley coupled to a motor shaft of the motor; A rotating shaft coupled to a lower side of the rotating disk and disposed through the rotating disk; A driven pulley coupled to the rotating shaft; And a belt interconnecting the drive pulley and the driven pulley.

The electrode cutting unit may further include an electrode cutting unit for cutting the worn lower end of the electrode mounted on the electrode chuck, wherein the electrode cutting unit includes a grip member including a pair of fingers moving in opposite directions by pneumatic pressure, And a second horizontal transfer device coupled to a rear side of the first and second clamp members to horizontally move the first and second clamp members.

According to the present invention as described above, the discharge electrode and the electrode guide can be automatically replaced by a simple method, thereby improving the working efficiency. In addition, it is possible to automatically cut the end portion of the worn electrode, thereby increasing the replacement period of the electrode, thereby reducing the time loss due to the electrode replacement and maintaining the high accuracy.

1 is a perspective view of a blood-gas-discharge machine according to the present invention,
FIGS. 2A and 2B are perspective views of a processing part of a blood-gas-discharge processor according to the present invention,
FIG. 3A is a perspective view of a guide chuck of a degassing electric discharge machine according to the present invention,
FIG. 3B is a perspective view of a guide chuck of a blood purge discharge machine according to the present invention,
FIG. 4 is a perspective view illustrating an electrode supplying portion of a degassing electric discharge machine according to the present invention,
FIG. 5 is an exploded perspective view of an electrode supply part of a blood purge discharge machine according to the present invention,
FIG. 6 is a sectional view of the electrode feeder of the electrode feeder according to the embodiment of the present invention,
FIG. 7 is a perspective view of a guide supply portion and an electrode cutout portion of a blood purge discharge machine according to the present invention,
8 is an exploded perspective view of a guide supply unit according to the present invention,
FIGS. 9A to 9C are operation states for explaining a method of supplying and replacing an electrode in a blood-cleaning electric discharge machine according to the present invention;
FIGS. 10A and 10B are operation states for explaining a method of supplying and replacing an electrode guide in a blood-cleaning electric discharge machine according to the present invention;
FIG. 10C is an operational state view for explaining a method of cutting an electrode in a blood-cleaning electric discharge machine according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the configuration and operation of a blood purge discharge machine having an electrode automatic replacement function according to the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in FIG. 1, a blood purge discharge machine according to the present invention includes a processing unit 100, an electrode supply unit 200, a guide supply unit 300, and an electrode cutoff unit 400.

The machining unit 100 receives a machining discharge electrode (hereinafter abbreviated as "electrode") from the electrode supply unit 200 and supplies electric power to the workpiece (not shown) disposed in the oil bath 10 provided at the lower side. A processing frame 110, an electrode chuck 120, and a guide chuck 130 are used as a part for processing a hole by using a discharge.

The processing frame 110 is a vertically extended frame having an electrode chuck 120 holding the electrode 1 vertically movably mounted on the front side and a guide chuck 130 . The electrode 1 is provided with an electrode head 2 inserted and coupled to the bottom of a socket 3 to be described later and a set of rod-shaped metal electrodes inserted and coupled under the electrode head 2, (Not shown). The lower end of the electrode 1 passes through the electrode guide 4 mounted on the guide chuck 130 and is extended so that the end portion thereof is exposed downward. The inclined angle can be adjusted by rotating the processing frame 110 by the rotary cylinder 180 disposed on the rear side, and the position of the processing frame 110 in the horizontal direction can be changed by the horizontal transfer device 190.

FIG. 2A is a perspective view of the machining unit 100 viewed from the left, and FIG. 2B is a perspective view of the machining unit 100 viewed from the right side. As shown in the figure, the machining unit 100 includes a first elevating motor 140 and a first lead screw 142 for raising and lowering the electrode chuck 120. The first elevating motor 140 is disposed on the upper bracket 160 horizontally mounted on the upper end of the processing frame 110 such that the motor shaft is directed downward and the first lead screw 142 is coupled to the motor shaft do. As shown in FIG. 2B, a first nut block 144 is coupled to a first lead screw 142 on one side of the electrode chuck 120. The first nut block 144 is moved up and down by the screw action of the first lead screw 142 when the first lead screw 142 is rotated according to the operation of the first elevating motor 140 The entire electrode chuck 120 coupled to the first nut block 144 is lifted up and down.

The machining unit 100 further includes a second elevating motor 150 and a second lead screw 152. The second elevating motor 150 and the second lead screw 152 are used to move the entire processing part 100 including the processing frame 110, the electrode chuck 120 and the guide chuck 130 up and down. The second elevating motor 150 is disposed on the upper bracket 160 at the upper end of the processing frame 110 such that the motor shaft is directed downward and the second lead screw 152 is disposed at the second elevating motor 150, As shown in Fig. 2A, a second nut block 154 is screwed into the bracket connecting the rotary cylinder 180 and the processing frame 110 to the second lead screw 152. In this case, do. With this configuration, when the second lead screw 152 is rotated according to the driving of the second elevating motor 150, the vertical position of the rotary cylinder 180 is fixed, so that the second nut block 154 is also positioned The second lead screw 152 is moved up and down by a screw action with the second nut block 154 so that the entire machining portion 100 is vertically moved up and down.

The guide chuck 130 is a portion for gripping the electrode guide 4 mounted on the lower side of the lower bracket 170 mounted on the lower end of the processing frame 110. 3A and 3B are a perspective view and an exploded view of the guide chuck 130, respectively. The guide chuck 130 includes a guide holder 132 having a guide insertion hole 133 into which the electrode guide 4 is inserted in a vertical direction and a guide holder 132 having a guide hole 132 extending in the horizontal direction from the outside of the guide holder 132. [ And a fixing key 134 for pressing and fixing the electrode guide 4 inserted into the guide insertion hole 133 as it is horizontally moved into and out of the guide insertion hole 133. As shown in FIG. 3B, the fixed key 134 is formed in a rod shape extending in the horizontal direction, and its tip end is curved in a shape corresponding to the shape of the outer circumferential surface of a guide electrode, which will be described later.

The fixed key 134 is reciprocally moved in the horizontal direction (forward and backward direction in the drawing) for fixing and separating replacement of the guide electrode. The fixed key 134 may be manually movable horizontally or horizontally movably by an air cylinder or the like. 3B shows a structure in which a link 135 is coupled to the rear end of the fixed key 134 and a press rod 136 is coupled to the upper end of the link 135. [ When the pressing rod 136 is gripped and moved forward or rearward through the structure, the fixed key 134 connected to the link 135 can be moved in the forward and backward directions. When the link 135 or the pressure rod 136 is connected to the air cylinder, the fixed key 134 can be automatically moved in the forward and backward directions. As the fixed key 134 is moved in the horizontal direction, the guide electrode can be fixed to or separated from the guide holder 132. The method of replacing the guide electrode will be described later in more detail.

The electrode supplying unit 200 supplies the electrode 1 to the processing unit 100 for the first time and supplies the new electrode 1 again after recovering the worn electrode 1 during use. 4 and 5 are a perspective view and an exploded view of the electrode supplying unit 200. As shown in FIG. The electrode feeder 200 includes a first rotation motor 210, an electrode holder 230, an electrode finger 250, and a first horizontal feed device 260.

First, the first rotary motor 210 is vertically disposed such that a motor shaft is directed downward, and a driving gear 212 is connected to the motor shaft. A driven gear 214 is connected to the driving gear 212 and an electrode holder 230 to be described later is coupled to a lower side of the driven gear 214. The driving gear 212 and the driven gear 214 may be constituted by a pair of spur gears or helical gears.

The electrode holder 230 is generally disk-shaped, and a plurality of mounting grooves 232 on which an electrode-coupling socket 3 to be described later is mounted are continuously spaced apart from each other by a predetermined distance. The lower end of the outer circumferential surface of the socket 3 is seated in the fixing groove 232 and the fixing frame 3a protruding from the central outer circumferential surface of the socket 3 is inserted into the fixing groove 232 of the electrode holder 230, .

The electrode holder 230 and the driven gear 214 are vertically fixed by bolts or the like. A center shaft 220 is inserted through the center of the electrode holder 230 and the driven gear 214. A bearing 224 is disposed on an outer circumferential surface of the center shaft 220, And is formed to protrude perpendicularly to the disk-shaped fixed disk 222. The driving gear 212 and the driven gear 214 engaged with the driving gear 212 are rotated and the electrode holder 230 fixedly coupled to the driven gear 214 is rotated by the center shaft 220 As shown in Fig.

The electrode finger 250 is provided on the lower side of the electrode holder 230, more specifically, below the fixed disk 222. The electrode finger 250 is configured to grip the electrode head 2 and is configured to be generally clamped and reciprocally movable horizontally by the first horizontal feed device 260. 4 and 5, the first horizontal transfer device 260 is coupled to a side surface of a cylinder bracket 262 coupled to a lower side of the fixed disk 222, The vertical bar 240 to be described later is moved horizontally.

In FIG. 6, the coupling structure of the first horizontal transfer device 260, the electrode finger 250, and the vertical bar 240 is shown in more detail. As shown, according to an embodiment of the present invention, the first horizontal transfer device 260 may be constituted by an air cylinder. Here, the first horizontal transfer device 260 is horizontally disposed such that the cylinder rod is oriented sideways, and the vertical bar 240 is coupled to the end of the cylinder rod. The vertical bar 240 is vertically disposed in parallel with the electrode 1 coupled to the electrode head 2. A vertical V-shaped concave groove is formed at the lower end of the vertical bar 240 so that the electrode is inserted and supported and guided A guide piece 242 is formed. The electrode finger 250 is disposed at the upper end of the vertical bar 240. The electrode finger 250 is coupled to the upper end of the vertical bar 240 and grips the electrode head 2 as it is caught by the edge of the engaging groove 2a formed on the outer peripheral surface of the electrode head 2. Here, the electrode finger 250 may be fixedly installed so as to be always open in correspondence with the diameter of the engagement groove 2a of the electrode head 2. And may be configured to be opened and closed by the air cylinder to perform the clamping action.

When the first horizontal transfer device 260 is expanded and operated, the vertical bar 240 and the electrode finger 250 coupled to the upper end of the vertical bar 240 move in the horizontal direction, It is possible to horizontally feed the socket 3 and the electrode head 2 fixed to the mounting groove 232 and a set of the electrodes 1 coupled thereto and horizontally to the machining unit 100, And then the electrode holder 230 is recovered. This operation will be described later in more detail.

The rotation support plate 234 and the electrode holder 230 are connected to the electrode holder 230 by a plurality of connections 236. The rotation support plate 234 is spaced apart from the electrode holder 230 by a predetermined distance, ) Rods. A plurality of 'V' concave grooves are continuously formed on the outer circumferential surface of the rotation support plate 234 so as to stably accommodate the lower end of the electrode 1 held by the electrode holder 230.

7 is a perspective view of the guide feeder 300 and the electrode cutout 400. FIG. The guide supply part 300 serves to supply the electrode guide 4 to the lower guide holder 132 of the machining part 100. The electrode cut part 400 is used in the machining part 100 to wear And cuts the lower end portion of the electrode 1 automatically. Hereinafter, each configuration and operation will be described.

8 is an exploded view of the guide supply part 300. As shown in FIG. As shown in the figure, the guide supply unit 300 includes a rotary arm 310, a rotary cylinder 320, a second rotary motor 330, and a rotary disk 340.

The rotary arm 310 is a plate member which is elongated in the longitudinal direction, and a rotary cylinder 320 is coupled to one end of the rotary arm 310. The rotary arm 310 is rotated in the horizontal direction about the axis of the rotary cylinder 320 by the operation of the rotary cylinder 320. [

A rotating disk 340 is rotatably mounted on the other end of the rotary arm 310. The rotary disk 340 is formed with a guide receiving groove 340a which is concave at regular intervals along the edge. The electrode guide 4 is accommodated in the guide receiving groove 340a. The rotary rocking arm 310 is configured to be rotatable. To this end, the second rotary motor 330 is provided on the side of the rotary disk 340 of the rotary arm 310. The motor shaft of the second rotary motor 330 extends vertically downward and penetrates the rotary rocking arm 310. A drive pulley 332 is coupled to the motor shaft. A rotating shaft 342 disposed through the rotating arm 310 is coupled to the rotating disk 340 and a shaft 334 is coupled to the rotating shaft 342. The drive pulleys 332 and 334 are interconnected by a belt 336. When the driving pulley 332 is rotated according to the rotation of the second rotating motor 330, the connecting shaft 334 is rotated by the belt 336 and the rotating shaft 342 coupled with the shaft 334 is rotated Is rotated, and the rotary disk 340 coupled to the upper portion is rotated.

7, the electrode cutout 400 includes a clamping member 410 and a second horizontal transfer device 420. [ According to one embodiment of the present invention, the clamping member 410 may be constituted by a clamping cylinder which performs gripping operation by a pair of fingers 412 moving in opposite directions by pneumatic pressure. The cutter 414 is coupled to the inside of the two fingers 412, respectively. A second horizontal conveying device 420 is coupled to the rear side of the clamping member 410. As a result, the clamping member 410 moves toward the processing unit 100 in accordance with the expansion operation of the second horizontal transfer device 420 to cut the lower end of the worn electrode 1.

Hereinafter, the operation of the blood-gas-discharge machine according to the present invention will be described.

9A to 9C show an operation state diagram for explaining a process of supplying and replacing the electrode 1 to the machining unit 100 by the electrode supplying unit 200. As shown in FIG. First, as shown in FIG. 9A, a plurality of sets of the socket 3, the electrode head 2, and the electrode 1 are mounted on the initial electrode holder 230. The electrode set 120 of the machining unit 100 is in a state in which the electrode set currently used is mounted. 9B, the first horizontal feed device 260 is inflated to move the vertical bars 240 and the electrode fingers (not shown) coupled to the upper ends thereof, 250 to the lower side of the electrode chuck 120 of the processing unit 100. Accordingly, the electrode finger 250 grips the electrode head 2 of the electrode set mounted on the electrode chuck 120. In this state, when the electrode chuck 120 is moved upward, the electrode set is separated from the electrode chuck 120. Then, as shown in FIG. 9C, the first horizontal transfer device 260 is contracted to return the vertical bar 240 and the electrode finger 250 to their original positions, (230). 9C, another electrode set in which the electrode holder 230 is placed in the adjacent mounting groove 232 in accordance with the driving of the first rotation motor 210, And is rotated by a predetermined angle so as to be located on the same line as the earth 250. [ In the current state, when a reverse operation of the above-described process is performed, another new electrode set is mounted on the working electrode chuck 120. That is, the first horizontal transfer device 260 expands and the electrode finger 250 moves to the lower side of the electrode chuck 120 of the processing unit 100 while grasping the new electrode set, The electrode replacement is completed as the new electrode set is mounted on the electrode chuck 120.

10A and 10B show an operation state diagram for explaining a process of replacing the electrode guide 4 by the guide supply unit 300. FIG. 10C shows an operation state diagram for explaining the abrasive electrode cutting process by the electrode cut- Lt; / RTI > First, as shown in FIG. 10A, the electrode guide 4 is placed in the guide receiving groove 340a of the original rotating disk 340. As shown in FIG. The electrode guide 4 is well known and its detailed description is omitted. 10B, the rotary arm 310 is rotated by the rotary cylinder 320 in the lower side of the guide chuck 130 of the machining unit 100 in order to supply the electrode guide 4 to the machining unit 100, . Then, the entire machining portion 100 is moved downward. Then, the upper end of the electrode guide 4 is inserted into the guide insertion hole 133 formed in the guide holder 132 of the guide chuck 130. The side of the electrode guide 4 is pressed and fixed while the fixed key 134 shown in Figs. 3A and 3B is horizontally moved in the present state, The mounting is completed. Then, the machining unit 100 rises again and returns to its original position.

When the electrode guide 4 mounted on the guide chuck 130 of the machining unit 100 is replaced, the machining unit 100 is lowered in a state where the rotary disk 340 is positioned below the guide chuck 130 The fixed key 134 releases the pressing of the electrode guide 4 to the rotating disk 340 in a state in which it is housed in the hollow guide receiving groove 340a of the rotating disk 340. Then, The rotation disc 340 is rotated by a predetermined angle in accordance with the operation of the electrode holder 330 so that the other electrode guides 4 mounted in the adjacent guide receiving recesses 340a are positioned below the electrode chuck 120. [ In this state, the machining unit 100 is lowered as in the case of mounting the electrode guide 4 described above, and the replacement of the electrode guide 4 is completed as the new electrode chuck 120 grasps and fixes the new electrode guide 4 do.

When the lower end of the electrode is worn during processing, the second horizontal transfer device 420 of the electrode cutout portion 400 expands and the clamping member 410 moves to the processing portion 100 as shown in FIG. 10C. The pair of fingers 412 move in the direction opposite to each other in accordance with the operation of the clamping member 410 by the cutter 414 provided inside the fingers 412 The lower end of the electrode 1 is cut. After the cutting is completed, the second horizontal feed device 420 is contracted and the clamping member 410 is returned to its original position.

In this way, the automatic supply and replacement of the electrode and the electrode guide 4 and the cutting operation of the worn electrode can be automatically performed.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

1: Electrode 2: Electrode head
2a: Retaining groove 3: Socket
3a: Strap 4: Electrode guide
10: Oil tank 100:
110: machining frame 120: electrode chuck
130: guide chuck 132: guide holder
133: guide insertion hole 134: fixed key
135: Link 136: Pressure rod
140: first elevating motor 142: first lead screw
144: first nut block 150: second lift motor
152: second lead screw 154: second nut block
160: upper bracket 170: lower bracket
180: Rotary cylinder 190: Horizontal feed device
200: electrode supplier 210: first rotation motor
212: driving gear 214: driven gear
220: center shaft 222: fixed disk
224: Bearing 230: Electrode holder
232: mounting groove 240: vertical bar
242: Guide piece 250: Electrode wave earth
260: first horizontal feed device 300: guide feeder
310: Rotor arm 320: Rotary cylinder
330: second rotating motor 332: driving pulley
334: driven pulley 336: belt
340: rotating disk 342: rotating shaft
400: electrode cutting portion 410:
412: finger 414: cutter
420: second horizontal feed device

Claims (9)

A processing frame (110) formed vertically and configured to be movable up and down;
An electrode chuck 120 configured to be able to move up and down along the processing frame 110 and to which the working electrode 1 is mounted on the lower side;
A guide chuck 130 coupled to a lower side of the processing frame 110 and having an electrode guide 4 inserted therein for guiding a lower end of an electrode mounted on the electrode chuck 120;
An electrode holder 230 configured to be rotatable on one side of the processing frame 110 and configured such that a plurality of electrodes 1 are spaced apart from each other by a predetermined distance;
An electrode fingers 250 mounted on the electrode chuck 120 and configured to hold an electrode to be replaced or an electrode held in the electrode holder 230;
The electrode finger 250 may be horizontally moved so as to transfer the electrode placed on the electrode holder 230 to the lower side of the electrode chuck 120 or to transfer the electrode mounted on the electrode chuck 120 to the electrode holder 230, And a first horizontal transfer device (260) configured to reciprocate the first horizontal transfer device
The first horizontal transfer device 260 is composed of an air cylinder, and the first horizontal transfer device 260 is horizontally disposed such that the cylinder rod is laterally oriented. The first horizontal transfer device 260 is disposed vertically And the electrode finger 250 is coupled to an upper end of the vertical bar 240;
Wherein a vertical guide bar (242) is formed at the lower end of the vertical bar (240) so that an electrode is inserted and supported and guided when the electrode is transferred. The method according to claim 1,
Wherein the electrode holder (230) is formed in a disk shape, and a plurality of mounting grooves (232) on which an electrode coupling socket (3) is mounted are continuously arranged around the outer circumferential surface of the electrode holder (230). The method according to claim 1,
A first rotation motor 210;
A driving gear 212 rotated according to the driving of the first rotary motor 210;
A driven gear 214 coupled to the electrode holder 230 and rotating the electrode holder 230 in association with rotation of the driving gear 212;
A center shaft 220 protruding from the center of the electrode holder 230 and inserted into the center of the electrode holder 230 and the driven gear 214 is provided at the center of the electrode holder 230, Further comprising a stationary disk (222) to which said stationary disk (260) is coupled. The method according to claim 1,
Wherein the electrode fingers (250) are formed in a gripping shape so as to grip an electrode head (2) coupled to an upper end of the electrode. delete delete The method of claim 1,
And a guide supply unit 300 for supplying the electrode guide 4 to the guide chuck 130. The guide supply unit 300 includes a rotary cylinder 320 and a rotary cylinder 320 having one end coupled to the rotary cylinder 320 And a rotary disk 340 rotatably coupled to the other end of the rotary arm 310 and having a plurality of electrode guides 4 accommodated around the edges thereof, Wherein the first and second electrodes are connected to each other. 8. The method of claim 7,
A second rotary motor 330 installed at a side of the rotary disk 340 of the rotary arm 310 and installed to penetrate the rotary arm 310 vertically with the motor shaft facing downward;
A drive pulley 332 coupled to the motor shaft of the second rotary motor 330;
A rotating shaft 342 coupled to a lower side of the rotating disk 340 and disposed through the rotating arm 310;
A driven pulley 334 coupled to the rotating shaft 342;
Further comprising a belt (336) interconnecting the drive pulley (332) and the driven pulley (334). The method according to claim 1,
The electrode cutting unit 400 further includes a pair of fingers 412 which move in opposite directions to each other by pneumatic pressure, and the electrode cutting unit 400 cuts the worn lower end of the electrode mounted on the electrode chuck 120 A cutter 414 provided on the inner side of the two fingers 412 and a cutter 414 coupled to a rear side of the cutter member 410 to horizontally move the cutter member 410, 2 horizontal transfer device (420).

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