JP2721092B2 - Wire electric discharge machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire electric discharge machine, and more particularly to a wire electric discharge machine capable of easily removing an inner (core) portion of a machining locus of a workpiece and further from the wire electric discharge machine. The present invention relates to a wire electric discharge machine capable of automatically discharging an inner (core) portion.

[0002]

2. Description of the Related Art FIG. 20 is a perspective view showing a schematic configuration of a conventional wire electric discharge machine described in Japanese Patent Publication No. 63-59810. In the drawing, reference numeral 1 denotes a work to be processed, 2 denotes a mounting base for supporting the work 1 substantially vertically, 3 denotes a vertical moving base on which the mounting base 2 is fixed, and 4 denotes a vertical moving base. 5 is a guide for guiding the movement of the slider 4, 6 is the vertical moving table 3 and a vertical feed screw screwed into the slider 4, 7
Is a drive motor for rotating the feed screw 6.

Reference numeral 8 denotes a wire electrode, and 9 denotes a substantially U-shaped gantry that is supported substantially horizontally. At the time of wire electric discharge machining, the work piece 1 is attached to the substantially U-shaped tip of the gantry 9. Is located. Reference numeral 10 denotes a collection roller disposed on the upper surface of the gantry 9, and collects the wire electrode 8. 11 is a guide roller located on the wire supply side of the gantry 9, 12 is a guide roller located on the wire recovery side of the gantry 9, and 13 is an automatic roller attached to the tip of the gantry 9 on the substantially U-shaped wire supply side. The connection means 14 is also an automatic connection means attached to the substantially U-shaped wire recovery side end of the gantry 9. The connection, cutting, and cutting of the wire electrode 8 are performed by the pair of automatic connection means 13 and 14. The guide is performed when the wire electrode 8 runs.

Reference numeral 15 denotes an automatic connection means support for adjusting and fixing the automatic connection means 14 in the thickness direction of the work 1 in accordance with the thickness of the work 1, and 16 denotes a support for mounting the gantry 9 in the horizontal direction. Is a guide for guiding the movement of the slider 4, 18 is a horizontal feed screw screwed into the gantry 9 and the slider 16, and 19 is a drive motor for rotating the feed screw 18. Reference numeral 20 denotes a machining locus formed by wire electric discharge machining, and the workpiece 1 is moved by the machining locus 20 into an outer portion 1a and an inner (core) portion 1b.
Divided into

Next, the operation will be described. The conventional wire electric discharge machine is configured as described above, and performs electric discharge machining while relatively moving the wire electrode 8 of the mounting base 2 to which the workpiece 1 is fixed, thereby performing machining. The object 1 is processed into a desired shape. That is, the feed screw 6 in the vertical direction is driven forward and reverse to rotate the mounting table 2 and the workpiece 1.
Is appropriately moved in the vertical direction, and the horizontal feed screw 18 is driven to rotate forward and reverse to appropriately move the wire electrode 8 in the horizontal direction, and furthermore, this vertical movement and the horizontal movement are coordinated with each other. While performing wire electric discharge machining, a machining locus 20 of a predetermined shape is drawn on the workpiece 1,
Was separated into an outer portion 1a and a core portion 1b.

The traveling speed and tension of the wire electrode 8 during the processing are controlled by a driving device and a tension adjusting mechanism (both not shown) provided in the gantry 9, and the traveling position is controlled by a pair of automatic connection. It is precisely regulated by the means 13 and 14. A predetermined repetitive pulse voltage is applied to the wire electrode 8 and the workpiece 1 from a processing power supply (not shown), and a discharge is generated between the wire electrode 8 and the workpiece 1. Further, a processing liquid is spouted and supplied from a processing liquid supply device (not shown) to a processing part of the wire electrode 8 and the workpiece 1 to remove and cool the processing powder during the processing. .

[0007]

In the above-described conventional wire electric discharge machine, the workpiece is supported substantially vertically, and the wire electrode is run substantially horizontally to perform electric discharge machining. Therefore, even if the outer portion and the inner (core) portion of the workpiece are completely separated by the machining trajectory, the inner (core)
The part was supported resting in the outer part.
However, after the above-mentioned processing step of separating the outer part and the core part is completed, it is necessary to quickly remove the core part from the outer part in order to continuously proceed to the next processing step. Therefore, in a conventional wire electric discharge machine of this kind, a special removing device (for example, a method of adsorbing an inner (core) portion by a magnetic force using a magnet and transporting it to another place, or a piston It is necessary to provide an inner (core) portion by using the above method (for example, a method of extruding the inner (core) portion).

In the above-mentioned inner (core) part removing method using a magnet, the removing operation cannot be performed due to the material (for example, a non-magnetic material) of the workpiece, and the magnet and the piston cannot be removed. In the inner (core) part removal method used, the removal operation is not performed smoothly due to the shape of the inner (core) part, which hinders completely unattended automatic processing for a plurality of continuous processing steps.
There was a problem that work efficiency was poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and at the same time, is capable of inexpensively promoting the downsizing of the apparatus, executing completely unmanned automatic processing for a plurality of continuous processing steps, An object of the present invention is to provide a wire electric discharge machine capable of improving work efficiency.

[0010]

A wire electric discharge machine according to the present invention comprises: a pair of automatic connection means supported on both sides of a workpiece at substantially horizontal positions; A traveling wire electrode, mounting means for supporting the workpiece substantially vertically between the pair of automatic connection means, and relatively moving the mounting means and the wire electrode to process the workpiece by the wire electrode Driving means for forming a trajectory;
The mounting means should be attached to the workpiece in a direction perpendicular to the running direction of the wire electrode , and in a direction perpendicular to the vertical direction.
A rotating means for separating the inner (core) portion of the workpiece by rotating in a direction , and a discharging means for automatically discharging the separated inner (core) portion from the wire electric discharge machine. It is.

[0011] Further, the discharge means is provided with the inner side (core).
It is constituted by a shooter having a predetermined inclination angle on which a bar member for lowering a friction coefficient with a portion is arranged.

[0012] Further, the discharging means is provided on the inner side (core).
Gas or (and) to slide the part down in a certain direction
It is constituted by a shooter having a predetermined inclination angle and having a jetting means for jetting a liquid.

[0013] Further, the discharge means may be provided on the inner side (core).
A predetermined inclination angle in which a rod member for lowering a coefficient of friction with the portion is disposed, and a jetting means for jetting a gas or (and) a liquid to slide down the inner (core) portion in a predetermined direction; Is constituted by a shooter having.

Further, the discharge means is constituted by an operation type shooter whose inclination angle can be changed.

[0015] Further, the discharge means is provided with the inner side (core).
A rod member for lowering the coefficient of friction with the portion is arranged, and is constituted by an operation type shooter capable of changing its inclination angle.

[0016] Further, the discharge means is provided with the inner side (core).
A rod member for lowering the coefficient of friction with the portion is provided, and a jetting means for jetting gas or (and) liquid to slide down the inner (core) portion in a predetermined direction is provided. It is constituted by a variable operation type shooter.

Further, the discharging means discharges the inner (core) portion on the chute by a discharging member operated by air pressure or hydraulic pressure.

Further, the discharge means is provided on the inner side (core).
It is constituted by a belt conveyor that conveys the portion in a predetermined direction.

Further, the discharging means is provided on the inner side (core).
It comprises a shooter having a predetermined inclination angle for sliding down a portion in a predetermined direction, and vibration applying means for applying vibration to the shooter.

[0020] Further, the discharging means is provided on the inner side (core).
It comprises a shooter having a predetermined inclination angle on which a bar member for lowering the friction coefficient with the portion is arranged, and vibration applying means for applying vibration to the shooter.

[0021]

In the wire electric discharge machine according to the present invention, a workpiece is supported substantially vertically by a mounting base between a pair of automatic connection means supported at a substantially horizontal position, and substantially horizontally between the automatic connection means. By moving the wire electrode and relatively moving the mount and the wire electrode, a machining locus is formed on the workpiece by wire discharge. During the electric discharge machining process, the core portion of the workpiece to be cut off by the machining locus is supported in a state mounted on the outer portion, and after the machining locus is formed, the mounting base is mounted. Is rotated together with the workpiece around a horizontal axis perpendicular to the running direction of the wire electrode, and after the electric discharge machining, the core portion of the workpiece is automatically moved from the outer portion by its own weight by this rotation. Slip out. The core that has slipped out due to its own weight is continuously discharged using a shooter or the like.

[0022]

【Example】

[Embodiment 1] An embodiment of the present invention will be described below. FIG.
1 is a perspective view showing a schematic configuration of a wire electric discharge machine according to an embodiment (Embodiment 1) of the present invention. In the figure,
Reference numerals 1 to 20 denote the same or the same components as those of the above-described conventional example, and a duplicate description will be omitted. In the figure, reference numeral 21 denotes a rotation support that rotatably supports the mounting table 2, reference numeral 22 denotes a drive motor mounted on the rotation support 21, and reference numeral 23 denotes an automatic discharge chute having an inclined angle.
Reference numeral 3a denotes a round bar (made of a slidable material such as SUS polished steel or plastic) attached so that the core portion 1b of the workpiece 1 is easily slid down by its own weight. The rotation support base 21 and the drive motor 22 constitute a rotation means for rotating the mounting base 2 together with the workpiece 1 about a horizontal axis perpendicular to the traveling direction of the wire electrode 8 after the processing locus 20 is formed. doing.

The wire electric discharge machine according to this embodiment is constructed as described above, and is obtained by adding a rotating means comprising a rotary support 21 and a drive motor 22 to a conventional device. Then, the workpiece 1 is machined into a desired shape by executing an electric discharge machining process while relatively moving the mount 2 to which the workpiece 1 is fixed and the wire electrode 8.

Here, the machining procedure by this wire electric discharge machine will be described. FIG. 19 is a front view showing the workpiece 1 by wire electric discharge machining and its machining locus.
In the figure, reference numeral 20 denotes a machining trajectory by wire electric discharge machining, 20a is a machining start portion, 20b is a machining end portion, and 20C
Are small holes through which the wire electrodes 8 are inserted in advance before the start of discharge;
b is an approach section connecting the small hole 20c and the processing start portion 20a. By forming the processing locus 20, the workpiece 1 is divided into an outer portion 1a and an inner (core) portion 1b.

Prior to starting the electric discharge machining process, a pre-drilled hole 20c is formed at a predetermined position on the workpiece 1.
The workpiece 1 is fixed to the mounting base 2 such that is above the center of gravity G of the core portion 1b. Then, the wire electrode 8 is inserted into the small hole 20c, and the positions of the automatic connection means 13 and 14 are adjusted to prepare for the start of discharge. After this preparation is completed, the electric discharge machining process is executed by supplying a predetermined voltage intermittently while keeping the predetermined distance between the wire electrode 8 and the workpiece 1 while running the wire electrode 8. I do.

First, the drive motor 7 is driven and the feed screw 6
Is rotated to lower the mounting table 2, thereby raising the wire electrode 8 relatively to the workpiece 1. Thus, first, the approach section 20d is subjected to electric discharge cutting. And
When the approaching section 20d reaches the descent start portion 20a, the electric discharge machining is continued while the drive motor 19 is driven, the feed screw 18 is rotated, and the gantry 9 is horizontally moved. Thereafter, the drive motor 7 is appropriately driven to move the workpiece 1 up and down. In this way, by continuing the wire discharge while relatively moving the mounting base 2 and the wire electrode 8, a machining path 20 having a cutting groove D having a predetermined width is formed on the workpiece 1. By the way, when the desired processing shape is a complicated shape in the workpiece 1, both the drive motors 7 and 19 for lifting and lowering and for horizontal movement may be operated by a control device (not shown).

Finally, the processing locus 20 is formed by the wire electrode 8.
The machining end portion 20b reaches the already formed machining start portion 20a, and the machining start portion 20a and the machining end portion 20b are connected to complete the formation of the machining locus 20b, and the electric discharge machining process ends. The workpiece 1 is divided into an outer portion 1a and a core portion 1b by the machining locus 20. In particular, as shown in FIG.
0a is set above the position of the center of gravity G of the predetermined shape to be processed, and the path of the processing locus 20 is set to be in the opposite direction to the rotation direction of the rotational moment of the center of gravity G with respect to the processing start portion 20a. By forming a machining locus 20 by wire discharge on the workpiece 1, the wire electrode 8 is formed.
In this case, a stable electric discharge machining is ensured to the end, and electric discharge machining by the wire electrode 8 is smoothly performed. Then, the electric discharge machining process is completed, and machining path 2
When the shape of the workpiece 0 is completed, the core portion 1b of the workpiece 1 falls by the width of the cutting groove D, and the outer portion 1b remains as it is.
a.

Next, the operation of removing the core portion 1b will be described. FIG. 2 is a front view of a main part showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment. As described above, the wire electric discharge machine according to this embodiment includes the rotating means including the rotation support table 21 and the drive motor 22 and the automatic discharge chute 23. After the machining locus 20 is formed by the above-described procedure, the rotating means is operated, and the mounting base 2 is moved together with the workpiece 1 in a direction orthogonal to the traveling direction of the wire electrode 8 and
First, it is rotated in a direction perpendicular to the vertical direction . In this procedure, first, the wire electrode 8 is cut when the processing is completed. This cutting process is automatically executed by the automatic connection means 13 and 14. Subsequently, the workpiece 1 supported by the mounting table 2 is driven by a drive motor 22 mounted on a rotation support table 21 so that a rotation shaft (not shown) connected to the drive motor 22 is centered. Then, the mounting table 2 and the workpiece 1 are rotated. With this rotation,
The outer portion 1a and the core portion 1b of the workpiece 1 rotate together, but when rotated to a certain angle, the core portion 1b automatically slides out of the outer portion 1a by its own weight.

As described above, in the embodiment, the core portion 1b of the workpiece 1 can be easily removed, and the automatic ejection chute 2 can be further removed.
According to 3, for example, after the above-described processing step of separating the outer part 1 a and the core part 1 b is completed, it is extremely convenient in the case of successively moving to the next processing step, etc. It can greatly contribute to the promotion of automation.

In particular, using a wire electric discharge machine,
In the case where a plurality of workpieces independent of the plurality of workpieces 1 are intermittently subjected to electric discharge machining, it is not necessary to remove the core portion 1b every time one machining process is completed. After all the machining processes are completed, the core portion 1b can be removed at one time at a time, and the removed core portion 1b can be automatically discharged to the outside of the wire electric discharge machine by the automatic discharge shooter 23. Shortening of the processing time can be promoted. Also, in the unlikely event that the core portion 1b is
Even if there is a portion that is not cut out from the wire, the wire electric discharge machine will not be damaged.

As described above, the wire electric discharge machine of this embodiment has a pair of automatic connection means 13 and 14 supported at a substantially horizontal position with the workpiece 1 interposed therebetween, and a pair of automatic connection means 13 and 14, a wire electrode 8 running substantially horizontally between
A mounting base 2 for supporting the workpiece 1 substantially vertically between the pair of automatic connection means 13 and 14, and the mounting base 2 and the wire electrode 8 are relatively moved to form a processing start portion of a processing locus 20. 20a is set above the position of the center of gravity G of the predetermined shape to be machined, and the path of the machining trajectory 20 is set so as to be in the opposite direction to the rotation direction of the rotational moment of the center of gravity G with respect to the machining start portion 20a. A driving unit for forming a machining locus 20 by wire discharge on the workpiece 1, and after the machining locus 20 is formed, the mounting table 2 is moved together with the workpiece 1 along a horizontal axis perpendicular to a traveling direction of the wire electrode 8. Rotating means for rotating the center.

The workpiece 1 is supported substantially vertically by the mounting base 2 between the pair of automatic connection means 13 and 14 supported at a substantially horizontal position. Since the electrode 8 is run, the mounting base 2 and the wire electrode 8 are relatively moved to form a machining trajectory 20 by wire discharge on the workpiece 1. The core portion 1b of the workpiece 1 to be cut off by the trajectory 20 is supported while being placed in the outer portion 1a.

After the machining locus 20 is formed, the mounting table 2 is rotated together with the workpiece 1 about a horizontal axis perpendicular to the traveling direction of the wire electrode 8. After the processing, the core portion 1b of the workpiece 1 automatically slides out of the outer portion 1a by its own weight. Therefore, the core portion 1b of the workpiece 1 after the processing can be easily removed, and furthermore, the automatic discharge chute 23
Thus, the core portion 1b can be discharged to the outside of the wire electric discharge machining apparatus, which is extremely convenient when performing a complete unmanned automatic machining process for a plurality of continuous machining processes.

Embodiment 2 FIG. 3 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (Embodiment 2) of the present invention. In the drawing, reference numerals 1 to 22 denote the same or corresponding components as those of the first embodiment, and a duplicate description will be omitted. Reference numeral 23 denotes an automatic discharge chute having an inclination angle, 25 denotes a nozzle (using air or an aqueous solution),
And air or an aqueous solution is discharged to the upper side surface of the core portion 1b of the workpiece 1 so that the core portion 1b easily slides down. FIG. 4 is a main part front view showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

Third Embodiment FIG. 5 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (third embodiment) of the present invention. In the drawing, reference numerals 1 to 22 denote the same or corresponding components as those of the first embodiment, and a duplicate description will be omitted. Reference numeral 23 denotes an automatic discharge shooter having an inclination angle, and reference numeral 23a denotes a round bar (SUS polished steel, plastic, etc.) which is attached so that the core portion 1b of the workpiece 1 is easily slid down by its own weight. ) And 25 is a nozzle (using air or an aqueous solution),
And air or an aqueous solution is discharged to the upper side surface of the core portion 1b of the workpiece 1 so that the core portion 1b easily slides down. FIG. 6 is a front view of a main part showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

[Embodiment 4] FIG. 7 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (Embodiment 4) of the present invention. In the drawing, reference numerals 1 to 22 denote the same or corresponding components as those of the first embodiment, and a duplicate description will be omitted. Reference numeral 23 denotes an operation-type automatic discharge shooter, and reference numeral 24 denotes a hinge for operating the automatic discharge shooter 23 up and down.
b makes it easy to slide down by its own weight. FIG. 8 is a main part front view showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

[Embodiment 5] FIG. 9 is a perspective view showing a schematic structure of a wire electric discharge machine according to another embodiment (embodiment 5) of the present invention. In the drawing, reference numerals 1 to 22 denote the same or corresponding components as those of the first embodiment, and a duplicate description will be omitted. Reference numeral 23 denotes an operation-type automatic discharge shooter, and reference numeral 23a denotes a round bar (SUS) attached so that the core portion 1b of the workpiece 1 slides easily under its own weight.
24 is a hinge for operating the automatic discharge shooter 23 up and down, and the core portion 1b of the workpiece 1 is easily slid down by its own weight. It is configured as follows. FIG. 10 is a main part front view showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG.
In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

Sixth Embodiment FIG. 11 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (sixth embodiment) of the present invention. In the drawings, reference numerals 1 to 22 denote the first embodiment.
Since the same or corresponding components are shown, redundant description will be omitted. Reference numeral 23 denotes an operation-type automatic discharge chute, and reference numeral 23a denotes a round bar (SU) attached so that the core portion 1b of the workpiece 1 can easily slide down by its own weight.
S polished steel, plastic, etc.). Numeral 24 is a hinge for operating the automatic ejection chute 23 up and down, and reference numeral 25 is a nozzle (using air or an aqueous solution), which is disposed above the operable automatic ejection chute 23 and is a core of the workpiece 1. Part 1b
Is designed to be easily slid down by its own weight. FIG.
FIG. 2 is a main part front view showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

Embodiment 7 FIG. 13 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (Embodiment 7) of the present invention. In the drawing, reference numerals 1 to 22 denote the same or corresponding components as those of the first embodiment, and a duplicate description will be omitted. Reference numeral 23 denotes an automatic discharge chute having an inclined angle, and reference numeral 26 denotes a pusher, which is disposed at the rear of the automatic discharge chute 23 and has a cylinder 2.
The core portion 1b of the workpiece 1 is ejected from the automatic ejection chute 23 by a forward and backward movement motion 7 (using air pressure or liquid pressure). FIG. 14 is a main part front view showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

[Embodiment 8] FIG. 15 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (Embodiment 8) of the present invention. In the drawings, reference numerals 1 to 22 denote the first embodiment.
Since the same or corresponding components are shown, redundant description will be omitted. Reference numeral 28 denotes a belt conveyor for discharging the core portion 1b of the workpiece 1 from the machine main body. FIG. 16 is a main part front view showing an operation of removing the core portion 1b by the wire electric discharge machine shown in FIG. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

Ninth Embodiment FIG. 17 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (ninth embodiment) of the present invention. In the figures, reference numerals 1 to 23 denote the first embodiment.
Since the same or corresponding components are shown, redundant description will be omitted. Reference numeral 29 denotes a vibration applying device (for example, a low-frequency vibrator) which applies vibration to the automatic discharge chute 23 to make the core portion 1b of the workpiece 1 slippery on the automatic discharge chute 23. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

Embodiment 10 FIG. 18 is a perspective view showing a schematic configuration of a wire electric discharge machine according to another embodiment (Embodiment 10) of the present invention. In the figure, reference numerals 1 to 23a denote the same or corresponding components to those of the first embodiment, and a duplicate description will be omitted. 29 is a vibration adding device (for example, a low frequency vibrator),
In order to make the core portion 1b slippery on the automatic discharge chute 23, vibration is added to the automatic discharge chute 23. In the drawings, the same reference numerals and symbols as those of the above-described embodiment denote the same or corresponding components as those of the above-described embodiment.

[0043]

As described above, according to the wire electric discharge machining apparatus of the present invention, a pair of automatic connection means supported on both sides of a workpiece at a substantially horizontal position, and a substantially horizontal connection between the pair of automatic connection means. A wire electrode that travels in a direction, mounting means for supporting the workpiece substantially vertically between the pair of automatic connection means, and moving the mounting means and the wire electrode relatively to each other by using the wire electrode on the workpiece. Driving means for forming a processing locus;
The mounting means should be attached to the workpiece in a direction perpendicular to the running direction of the wire electrode , and in a direction perpendicular to the vertical direction.
Rotating means for separating the inner (core) portion of the workpiece by rotating in the direction , and discharging means for automatically discharging the separated inner (core) portion from the inside of the wire electric discharge machine. In addition, it is possible to reduce the size of the apparatus at low cost, to execute a completely unmanned automatic processing for a plurality of continuous processing steps, and to greatly improve the work efficiency.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 1) according to the present invention.

FIG. 2 is a front view of a main part showing an operation of removing a core portion of the wire electric discharge machine shown in FIG. 1;

FIG. 3 is a perspective view showing a schematic configuration of a wire electric discharge machine (second embodiment) according to the present invention.

4 is a main part front view showing a core part removing operation of the wire electric discharge machine shown in FIG. 3;

FIG. 5 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 3) according to the present invention.

6 is an essential part front view showing a core removing operation of the wire electric discharge machine shown in FIG. 5;

FIG. 7 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 4) according to the present invention.

8 is a main part front view showing a core part removing operation of the wire electric discharge machine shown in FIG. 7;

FIG. 9 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 5) according to the present invention.

10 is a main part front view showing a core part removing operation of the wire electric discharge machine shown in FIG. 9;

FIG. 11 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 6) according to the present invention.

12 is a main part front view showing a core part removing operation of the wire electric discharge machine shown in FIG. 11;

FIG. 13 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 7) according to the present invention.

FIG. 14 is a front view of a main part showing a core part removing operation of the wire electric discharge machine shown in FIG. 13;

FIG. 15 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 8) according to the present invention.

16 is a main part front view showing a core part removing operation of the wire electric discharge machine shown in FIG. 15;

FIG. 17 is a perspective view showing a schematic configuration of a wire electric discharge machine (ninth embodiment) according to the present invention.

FIG. 18 is a perspective view showing a schematic configuration of a wire electric discharge machine (Embodiment 10) according to the present invention.

FIG. 19 is a front view showing a workpiece and a machining trajectory by the electric discharge machining of the wire electric discharge machine according to the present invention.

FIG. 20 is a perspective view showing a schematic configuration of a conventional wire electric discharge machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Workpiece 1a Outer part 1b Inner (core) part 2 Mounting base 3 Vertical moving base 6 Feed screw 7 Drive motor 8 Wire electrode 13 Automatic connection means 14 Automatic connection means 18 Feed screw 19 Drive motor 20 Processing locus 21 Rotation support Table 22 Drive motor 23 Automatic ejection shooter 24 Hinge 25 Nozzle 26 Pusher 27 Cylinder 28 Belt conveyor 29 Vibration applying device

Claims (11)

(57) [Claims] 1. A pair of automatic connection means supported on both sides of a workpiece at a substantially horizontal position, a wire electrode running substantially horizontally between the pair of automatic connection means, and a pair of automatic connection means between the pair of automatic connection means. Attachment means for supporting the workpiece substantially vertically, and drive means for relatively moving the attachment means and the wire electrode to form a machining trajectory by the wire electrode on the workpiece.
The mounting means should be attached to the workpiece in a direction perpendicular to the running direction of the wire electrode , and in a direction perpendicular to the vertical direction.
By comprising a rotation means for separating the inner (core) portion of the workpiece is rotated toward, and discharging means for automatically discharging the separated inner (core) portion from the wire electric discharge machining apparatus A wire electric discharge machine characterized by the above-mentioned. 2. The discharge means comprises a shooter having a predetermined inclination angle on which a rod member for reducing a coefficient of friction with the inner (core) portion is arranged. 2. The wire electric discharge machine according to claim 1. 3. The discharge means is constituted by a shooter having a predetermined inclination angle and having a jetting means for jetting a gas and / or a liquid to slide down the inner (core) portion in a predetermined direction. 2. The method according to claim 1, wherein
A wire electric discharge machine according to the above. 4. A rod member for lowering a coefficient of friction with the inner (core) portion is disposed in the discharging means, and
2. A shooter having a predetermined inclination angle, comprising a jetting means for jetting a gas or a liquid to slide down the inner (core) portion in a predetermined direction. Wire electric discharge machine. 5. The wire electric discharge machine according to claim 1, wherein said discharge means is constituted by an operation type shooter whose inclination angle can be changed. 6. The discharging means is provided with a rod member for lowering a coefficient of friction with the inner (core) portion, and
2. A wire electric discharge machine according to claim 1, wherein said wire electric discharge machine comprises an operation type shooter capable of changing its inclination angle. 7. The discharging means is provided with a rod member for lowering a coefficient of friction with the inner (core) portion, and
7. An operation type shooter comprising a jetting means for jetting a gas or (and) a liquid to slide down the inner (core) portion in a predetermined direction, and having a variable inclination angle. 2. The wire electric discharge machine according to claim 1. 8. The wire electric discharge machine according to claim 1, wherein the discharge means discharges the inner (core) portion on the chute by a discharge member operated by air pressure or hydraulic pressure. 9. The wire electric discharge machine according to claim 1, wherein the discharging means is constituted by a belt conveyor for conveying the inner (core) portion in a predetermined direction. 10. The discharge means comprises: a shooter having a predetermined inclination angle for sliding down the inner (core) portion in a predetermined direction; and a vibration applying means for applying vibration to the shooter. The wire electric discharge machine according to claim 1, wherein 11. A shooter having a predetermined inclination angle on which a rod member for lowering a coefficient of friction with the inner (core) portion is disposed, and a vibration applying vibration to the shooter. 2. The wire electric discharge machine according to claim 1, wherein said wire electric discharge machine comprises an adding means.