JPH09201723A - Wire electric discharge machine - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] Information that cannot be determined at the time of creating an NC program for multi-cavity machining can be easily and definitely set. SOLUTION: A plurality of independent NC programs for machining individual machining shapes in multi-cavity machining, a plurality of independent data set setting screens for setting data corresponding to the plurality of independent NC programs, and a display thereof. A plurality of independent NC programs, a plurality of corresponding data set setting screens and a plurality of data set information storage means, and a plurality of data set information storage means for storing the contents. Performs multi-cavity machining of the machining shape of.

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 for continuously machining a plurality of machining shapes using a wire electric discharge machine, which is a so-called numerical control (hereinafter simply referred to as "NC") program. The present invention relates to a wire electric discharge machine that sets information that is difficult to include in the NC program in the machining step.

[0002]

2. Description of the Related Art First, at the NC program creating stage, there are positioning start coordinate information, mirror image information, coordinate rotation information, etc., which are difficult to include in the NC program being created. Here, the positioning start coordinate information, the mirror image information, and the coordinate rotation information will be described.

[Positioning start coordinate information] First, there is positioning start coordinate information as such information. When performing continuous machining of a plurality of works, a wire is previously inserted into a machining start hole formed in the works to start machining. However, the processing start hole may be formed at a position with the end surface of the work as a reference so as not to interfere with the multi-piece processing.
In such a case, in order to automatically perform continuous machining, the end surface of the work is detected by contact with the wire electrode, the position of the machining start hole is determined and positioned, and the wire is inserted there Be started. The machining start hole of the end face of this work, that is, the positioning start coordinate information, is near the corner of the end face of the work actually installed. The position where the work is installed in the actual machining stage is determined by the NC program. It is generally unknown at the creation stage. Or NC
Surface plate assumed at the time of program creation (table saddle)
It may be different from the position of. Therefore, assuming such a case, the positioning start coordinate information is made variable in the NC program, and when the positioning start coordinate information is fixed in the machining stage, the actual coordinate information is set as the variable from the variable setting screen. The setting is done. Alternatively, an NC program using the work coordinate system is created at the time of creating the NC program, and the work coordinate origin is set on the work coordinate screen in the machining stage.

[Mirror Image Information] Secondly, mirror image information is difficult information to include in the NC program at the NC program creating stage. Depending on the position of the machining start hole drilled in the work, machining may not be possible according to the NC program, but machining may be possible if a mirror image or axis replacement is applied (hereinafter, this is also included in the "mirror image information"). ])). In such a case, the mirror image switch on the operation panel of the NC device is operated to reset the work to a workable position and then the machining is started. The mirror image switch may exist as a position setting item on the screen of the NC device. However, in any case, for example, 1
When the mirror image information is different between the second processing and the second processing, the switch has to be changed during the processing. Therefore, an operator who switches the switch in the middle of processing must constantly monitor the work, resulting in poor work efficiency. Therefore, like the positioning start coordinates, the mirror image command is preset as a variable in the NC program, and when it is determined which axis is actually applied, the variable at that time is specified to a predetermined value. That is, the variable of the position setting item on the screen of the NC device is set when the mirror image information is fixed in the processing stage.

[Coordinate rotation information] Thirdly, coordinate rotation information is difficult information to include in the NC program at the NC program creation stage. For the work, the X axis and the Y axis of the NC program are normally set parallel to each other with the X axis and the Y axis of the surface plate as a reference. That is, the NC program is created assuming that the X and Y axes of the surface plate are the X and Y axes of the NC program. However, the work may be set obliquely depending on reasons such as when the work is too large or when it interferes with the jig. In such a case, it is necessary to measure the inclination of the work and input the inclination angle as coordinate rotation information from the operation panel of the NC device. Alternatively, similarly to the example of the positioning start coordinates and the mirror image information described above, the coordinate rotation command is set in advance in the NC program as a variable, and the actual angle to be set is set as a variable, and the machining is performed. When the rotation angle is decided at the stage, the variable is set from the screen.

Next, a series of processes of the above-mentioned positioning start coordinates, mirror image information, and coordinate rotation information in the conventional wire electric discharge machine will be described. FIG. 4 is a block diagram showing the overall functional configuration of a conventional wire electric discharge machine, FIG. 5 is an explanatory diagram showing the main part of an NC program example in the conventional wire electric discharge machine, and FIG. 6 is a conventional wire electric discharge machine. It is explanatory drawing which shows the example of a variable setting screen in a processing apparatus. FIG. 7 is a plan view showing a state in which the work is attached to the surface plate in the wire electric discharge machining apparatus according to the related art and the embodiment of the present invention.

The NC program creating apparatus 1 writes an NC program for performing multi-piece processing on a recording medium such as a floppy disk (FLD) or a paper tape. The NC program storage device 2 stores the NC program created by the NC program creation device 1 for performing multi-cavity machining. The NC program interpreting means 3 analyzes the program according to a predetermined grammar when executing the NC program for multi-cavity machining. Further, the positioning start coordinate information storage means 4 is NC
N for multi-cavity machining analyzed by the program interpreting means 3
Only the positioning start coordinates are stored from the C program. The mirror image information storage means 5 stores only the mirror image information from the NC program for multi-cavity machining analyzed by the NC program interpretation means 3. Further, the coordinate rotation information storage means 6 stores only the coordinate rotation information from the NC program for multi-cavity machining analyzed by the NC program interpretation means 3. Then, the positioning execution means 7 reads the positioning start coordinate information from the positioning start coordinate information storage means 4 and executes the positioning in the machining start hole. The mirror image execution means 8 reads the mirror image information from the mirror image information storage means 5 and executes the mirror image operation. The coordinate rotation execution means 9 reads the coordinate rotation from the coordinate rotation information storage means 6 and executes the coordinate rotation operation. These operations are performed by moving the surface plate 40 (see FIG. 7).

Further, the variable setting screen 30 shows the contents of the variable setting information displayed on the display (CRT) 10 provided in the wire electric discharge machine, which is stored in a predetermined area of the built-in display memory and also the work coordinates. Setting screen 3
Reference numeral 1 indicates the work coordinate setting state displayed on the display 10 of the wire electric discharge machine as described above.
It is stored in a predetermined area of the built-in display memory. These are displayed by superimposing the variable setting screen 30 on the work coordinate setting screen 31. The operation panel 11 is an input device provided in the wire electric discharge machine, and is NC
Change and selection of programs and creation of NC programs,
Used for setting constants of NC program. The mirror image switch 11a is a dedicated switch arranged on the operation panel 11, and moves the surface plate 40 when it is determined that machining cannot be performed according to the NC program from the position of the machining start hole formed in the work. , This switch resets the work position so that it can be machined.

Next, the processing operation of the positioning start coordinates, the mirror image information, and the coordinate rotation information in the conventional wire electric discharge machine will be described. First, the NC program created by the NC program creation device 1 is stored in the NC program in the NC device through a storage medium such as a floppy disk or paper tape.
It is stored in the C program storage device 2. At this time, the NC program for performing the multi-cavity machining is one NC program for sequentially machining a plurality of shapes as shown in FIG. In FIG. 5, PR is an NC program that controls the wire electric discharge machine, PM is an instruction explaining the meaning of the NC program PR, and NC program P
It is added for the explanation of R. For example, [N1
00] means the first processing, and [G00XH100YH
101;] indicates variable numbers “H100” and “H101” that specify the setting positions of the X axis and the Y axis by default.
In this block, the positioning start coordinates are designated at an appropriate position for each shape processing. [G62XH102Y
H103;] indicates variable numbers "H102" and "H103" that specify the X-axis and Y-axis setting positions by default, and this block controls the mirror image. [K
H104;] is a variable number "H10" specified in the initial setting.
4 "means that the coordinate rotation is controlled. [M20;] means that the wire is inserted, and [G29X1;] means that the contact position after the wire is inserted is determined. [M21;] means wire cutting. And
[G92X0Y0;] and [G01X100Y0;] mean the end of the shape processing. Here, a specific program for shape processing is omitted. These variable numbers "H ...
For "," a variable that allows the actual value to be determined at the machining stage is substituted, but there are cases where other commands that use the work coordinate system are used.

The worker attaches the first work W1, the second work W2, and the third work W3 to predetermined positions on the surface plate 40 as shown in FIG. For the variable number "H ...", for example, X of the start coordinate
Set machine coordinates and Y machine coordinates. Further, how to apply the mirror image is determined, and, for example, "0" or "1" is set to the corresponding variable number "H ...".
Furthermore, the coordinate rotation is determined and the corresponding variable number "H ...
. ", For example, the rotation angle is set. These are performed on the variable setting screen 30 as shown in FIG. 6, for example. FIG. 6 is an explanatory view showing an example of a variable setting screen in a conventional wire electric discharge machining apparatus, and shows an example in which a designated value for a variable number “H ...” is set. In FIG. 6, D1 is a first parameter for specifying a first machining variable for obtaining a first machining shape.
Machining variable setting unit, D2 specifies a second machining variable that obtains the second machining shape, a second machining variable setting unit, and D3 specifies a third machining variable that obtains the third machining shape. It is a third processing variable setting unit. For example, for the first processing variable setting unit D1, each variable is X indicating the positioning start coordinate.
Variable numbers that specify the setting positions of the axis and Y axis "H100" is "100.0" and "H101" is "100.0", and variable numbers that specify the setting positions of the X axis and Y axis that indicate the mirror image It indicates that "H102" is "1", "H103" is "0", and the variable number "H104" that specifies the setting position for instructing coordinate rotation is "0.0".
Second machining variable setting unit D2, third machining variable setting unit D3
The same applies to.

The NC program interpreting means 3 reads the variable number "H ..." Specifying the set position set when the NC program PR for multi-cavity machining is executed, and the positioning start coordinates are stored in the positioning start coordinate storage means. 4, the mirror image information is set in the mirror image information storage means 5, and the coordinate rotation is set in the coordinate rotation storage means 6. Further, the positioning execution means 7 reads the positioning start coordinates from the positioning start coordinate storage means 4,
Positioning to the processing start hole is executed. Further, the mirror image execution means 8 reads information from the mirror image information storage means 5 and executes the mirror image operation. Then, the coordinate rotation execution means 9 reads the coordinate rotation from the coordinate rotation information storage means 6 and executes the coordinate rotation operation. In this way, this operation is the main NC program P
This is realized by calling the sequential subprograms set on the variable setting screen 30 and the work coordinate setting screen 31 by R, and performs multi-cavity machining. That is, each N
The C program PR is in the form of a subprogram, in which the positioning start coordinate information, the mirror image information, and the coordinate rotation information are read out and the positioning start coordinate information, the mirror image information, and the coordinate rotation information are set. It is carried out.

[0012]

As described above, for the information that cannot be determined at the stage of creating the NC program PR such as the positioning start coordinates, the mirror image information, and the coordinate rotation information in the conventional wire electric discharge machining apparatus, the operator On the surface plate 40 the first work W1, the second work W2, the third work W
After setting 3, the positioning start coordinates, the mirror image, and the coordinate rotation are set on the variable setting screen 30 as shown in FIG. Therefore, the positioning start coordinates are set by the operator using the variable number “H ...” From the variable setting screen 30 or the work coordinate setting screen 31 in the machining stage, and thus an input error may occur. Also,
The number of the work coordinate system corresponding to each work or the mirror image, the variable number that determines the coordinate rotation "H ..."
Need to know. Since these are all number information,
I had to remember that number information.

On the other hand, Japanese Unexamined Patent Publication No. 4-87724 discloses a storage means for a plurality of positioning data and a means for reading the numbers assigned to these from the NC program.
Further, Japanese Patent Laid-Open No. 58-25872 discloses an input / selection means for a plurality of operation point coordinates in robot control. However, the techniques disclosed in these publications are limited to coordinates, and it is necessary to separately set the mirror image information and coordinate rotation information other than the coordinates by the method described above. In addition, JP-A-2-26291
5, JP-A-62-173144, JP-A-5
-220625 discloses a means for registering a plurality of processing conditions and selecting and using them, but these do not disclose necessary data other than the processing conditions, and other than the processing conditions. Is set on each setting screen. Therefore, the present invention eliminates the need for human input errors and eliminates the need to remember the number of the work coordinate system corresponding to each work, the mirror image, or the variable number that determines the coordinate rotation. An object of the present invention is to provide a wire electric discharge machining apparatus that cannot be determined and can easily set information determined at the machining stage.

[0014]

According to a first aspect of the present invention, there is provided a wire electric discharge machining apparatus corresponding to a plurality of independent NC programs for machining individual machining shapes in multi-cavity machining and the plurality of independent NC programs. A plurality of independent data set setting screens for setting data and a data set information storage means for storing the display contents thereof, the plurality of independent NC programs and the plurality of data set setting screens and data corresponding thereto It is necessary to be aware of the correspondence between the machining shape and the variable number or the workpiece coordinate system number, because it is necessary to set multiple individual data sets by using the set information storage means and perform multiple machining to machine a plurality of machining shapes. Therefore, it is possible to eliminate an input error and easily perform multi-cavity processing.

A wire electric discharge machine according to claim 2 is
The data set setting is one or more information of positioning start coordinate information, mirror image information, and coordinate rotation information.

A wire electric discharge machine according to claim 3 is
The data set setting screen exists for each machining shape, and the data set can be set and displayed independently of other machining shapes.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment according to the present invention will be described below. FIG. 1 is a block diagram showing an overall functional configuration of a wire electric discharge machine according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a main part of an NC program example of the wire electric discharge machine according to an embodiment of the present invention. Further, FIG. 3 is an explanatory diagram showing an example of a data set setting screen of the wire electric discharge machine in one embodiment of the present invention. In the figure, the same reference numerals and symbols as those of the conventional example indicate the same or corresponding components as those of the conventional example, and therefore, duplicated description is omitted here.

NC program creating apparatus 1 of this embodiment
Creates an independent NC program 1, NC program 2 and NC program 3 for each shape processing even if a large number of floppy disks or paper tape recording media are processed, and the NC program storage device 2 An NC program 1, an NC program 2, and an NC program 3 are stored for each shape machining created by the NC program creating device 1. As shown in FIG. 2, the NC program 1, NC program 2, and NC program 3 for each shape machining store the NC program for each shape machining independently in a predetermined storage area. In other words, this means that it is not necessary to create a program for multi-cavity machining, but NC programs for each machining shape may be created individually. These NC programs individually execute individual machining. Is the same as the format. The multi-cavity machining control means 21 is
From the NC program stored in the NC program storage device 2, the NC program 1, NC program 2, and NC program 3 for machining a large number of pieces are specified, and data is stored in the selected NC program 1, NC program 2, and NC program 3. Correlate the set setting screen 33.

The data set setting screen 33 shows the contents of the data set setting information displayed on the display 10 of the wire electric discharge machine, and is stored in a predetermined area of the built-in display memory. The data set setting screen 1, the data set setting screen 2, and the data set setting screen 3 are displayed on the display 10. The data set setting screen 1, the data set setting screen 2, and the data set setting screen 3 are the data set information storage means 32.
It corresponds to the stored contents of the data set storage means 1, the data set storage means 2, and the data set storage means 3 stored in the. That is, corresponding to the NC program 1, NC program 2 and NC program 3 which are stored in the NC program storage device 2 and are used for multi-piece machining, the data set information storage means 32 stores the data set setting screen 1 and data shown in FIG. Positioning start coordinate information, mirror image information, and coordinate rotation information are set in the data set storage means 1, the data set storage means 2, and the data set storage means 3 so that the set setting screen 2 and the data set setting screen 3 can be output. The area is allocated.

Although the other configurations are basically common, the positioning start coordinate information storage means 4 is an NC for multi-cavity machining analyzed by the NC program interpretation means 3.
Positioning start coordinates are stored from a program, and further, positioning start coordinate information is stored from the data set storage means 1, the data set storage means 2 or the data set storage means 3. Further, the mirror image information storage means 5 is an NC
N for multi-cavity machining analyzed by the program interpreting means 3
Store mirror image information from C program, and
The mirror image information is stored from the data set storage means 1, the data set storage means 2 or the data set storage means 3. Then, the coordinate rotation information storage means 6 stores the NC programs 1 and N analyzed by the NC program interpretation means 3.
Corresponding to C program 2 and NC program 3, coordinate rotation information is stored from the NC program for multi-cavity machining,
Further, coordinate rotation information is stored from the data set storage means 1, the data set storage means 2 or the data set storage means 3.

Next, the operation of the wire electric discharge machine of this embodiment will be described. The operator attaches the first work W1, the second work W2, and the third work W3 to the predetermined positions of the surface plate 40, and then, in accordance with the shapes of the first work W1, the second work W2, and the third work W3. Positioning start coordinate information, mirror image information, and coordinate rotation information required for each machining can be independently operated for each shape on the data set setting screen 1, data set setting screen 2, and data set setting screen 3 of the data set setting screen 33. Set. Data set setting screen 33
For example, the layout of the positioning start coordinate information, the mirror image information, and the coordinate rotation information as shown in FIG. That is, data regarding one machining shape is set on one screen, and as in the conventional example described above,
It is not necessary to be aware of the correspondence between the machining shape and the variable number or the work offset number, and the same setting method as that for single-piece machining can be used, so there is no need to learn a new operation method. Of the data set setting screen 33, the data set in each data set setting screen 1, data set setting screen 2, and data set setting screen 3 are
It is stored in each data set storage means 1, data set storage means 2, and data set storage means 3 of the data set information storage means 32 for each processed shape. Data set storage means 1
Is each first work W1, second work W2, third work W3
That is, a data set required for one processing is stored, and one data set is set by one corresponding data set setting screen 33.

The multi-cavity machining control means 21 reads the NC program for each machining shape from the NC program storage device 2 and, at the same time, starts positioning coordinate information, mirror image information, and coordinates from the corresponding machining shape data set information storage means 32. The rotation information is read out and set in the positioning start coordinate information storage means 4, the mirror image information storage means 5, and the coordinate rotation information storage means 6, respectively. For example, when executing the NC program 1 in FIG. 1, the data set storage means 1 is read, and when executing the NC program 2, the data set storage means 2 is read. This operation is different from the multi-cavity machining which is realized by sequentially calling subprograms by the main NC program in the above-mentioned conventional example. In the conventional example, in order to realize this operation, each NC program is in the form of a subprogram, and it is necessary to have a part for reading the positioning start coordinates, the mirror image information, and the coordinate rotation information by referring to the variables. was there. Therefore, in the present embodiment, each machining shape can be set on an independent individual data set screen, and it is not necessary to be aware of the correspondence between the machining shape and the variable number or the work coordinate system number. It became possible to easily perform machining.

Then, the positioning execution means 7 reads the positioning start coordinates from the positioning start coordinate storage means 4,
Positioning to the processing start hole is executed. The mirror image execution means 8 reads information from the mirror image information storage means 5 and executes the mirror image operation. The coordinate rotation execution means 9 reads the coordinate rotation from the coordinate rotation information storage means 6 and executes the coordinate rotation operation. In this way, this operation is performed by the NC program 1, the NC program 2, and the NC program 3 corresponding to the first work W1, the second work W2, and the third work W3, respectively. By setting the screen 1, the data set setting screen 2, and the data set setting screen 3 by an independent operation for each shape, the NC program 1 and NC are sequentially displayed.
Program 2, NC program 3 and data set setting screen 1, data set setting screen 2, data set storage means 1, data set storage means 2, and data set storage means 3 set on the data set setting screen 3 are called together and a large number It is a machining process. That is, the NC program 1, the NC program 2, and the NC program by the data set storage unit 1, the data set storage unit 2, and the data set storage unit 3 set on the data set setting screen 1, the data set setting screen 2, and the data set setting screen 3, respectively. 3 is executed.

As described above, in the wire electric discharge machining apparatus of the present embodiment, a plurality of independent NC programs such as NC programs 1, NC programs 2 and NC programs 3 for machining individual machining shapes in multi-cavity machining, A data set setting screen 33 including a plurality of independent data set setting screens 1, a data set setting screen 2, and a data set setting screen 3 corresponding to the plurality of independent NC programs and storing data and the display contents thereof are stored. And a data set information storage means 32 comprising a data set storage means 1, a data set storage means 2 and a data set storage means 3, each of which uses the plurality of independent NC programs and a plurality of data set means corresponding thereto. Set multiple datasets to process multiple machining shapes It is intended. Therefore, it is not possible to make a decision at the NC program creation stage such as a plurality of independent NC programs 1, NC programs 2, NC programs 3, etc., and the data decided at that machining stage is used as individual data for each machining shape. Since it is possible to perform setting on the data set setting screen 33 including the set setting screen 1, the data set setting screen 2, and the data set setting screen 3, it is possible to set the machining shape and the variable number or the work coordinate system number of the conventional example described above. It is no longer necessary to be aware of the correspondence, it is possible to eliminate input errors and easily perform multi-cavity processing. Also, since the data setting for each of the first work W1, the second work W2, and the third work W3 of multi-piece machining can be performed in the same manner as the data setting for the conventional single-piece machining, the operation method can be newly learned. There is no need to do it. Further, there is also an effect that the NC program for machining described in the conventional example can be used without being changed by only dividing it. In the above-described embodiment, the data that cannot be determined in the NC program creation stage but in the machining stage is
Although the positioning start coordinates, the mirror image information, and the coordinate rotation information are mentioned, the taper angle, taper specifications, and processing conditions can also be included.

[0025]

As described above, a plurality of independent NC programs for machining individual machining shapes in multi-cavity machining and a plurality of independent data for setting data corresponding to the plurality of independent NC programs A set setting screen and a data set information storage means for storing the display contents, and a plurality of individual NC programs and the individual data using the plurality of data set setting screens and the data set information storage means corresponding thereto This is a multi-cavity process for setting a set and processing a plurality of processing shapes. Therefore, in the setting data necessary for machining a specific machining shape in multi-cavity machining, NC
The data that cannot be determined in the program creation stage and that can be determined in the machining stage can be set on each individual data set screen for each machining shape, eliminating the need to associate machining shapes with variable numbers or workpiece coordinate system numbers. Therefore, it is possible to eliminate an input error and easily perform multi-cavity machining. Further, since the data setting for each workpiece in the multi-cavity machining can be performed in the same manner as the data setting for the conventional single-cavity machining, it is not necessary to learn a new operation method. Then, it can be easily used by simply dividing the conventional NC program for individual machining. Therefore, there is no need for human input error, and there is no need to remember the number of the work coordinate system corresponding to each work or the mirror image and the variable number that determines the coordinate rotation, which cannot be determined at the NC program creation stage. The information determined at the processing stage can be easily set.

According to the second aspect of the present invention, the data set setting according to the first aspect is one or more of positioning start coordinate information, mirror image information, and coordinate rotation information. In addition to this, it becomes possible to input requirements that pose a problem when a plurality of workpieces are installed, and it is possible for even an unskilled person to easily carry out a multi-cavity machining of a plurality of machining shapes.

According to a third aspect of the present invention, the data set setting screen of the first aspect exists for each machining shape, and the data set can be set and displayed independently of other machining shapes. Therefore, in addition to the effect described in claim 1,
Data setting for individual workpieces in multi-cavity machining can be done in the same way as data setting for single-cavity machining, eliminating the need to learn new operation methods, eliminating input errors, and facilitating multi-cavity machining Can be run to.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall functional configuration of a wire electric discharge machine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a main part of an NC program example of a wire electric discharge machine according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an example of a data set setting screen of the wire electric discharge machine according to the embodiment of the present invention.

FIG. 4 is a block diagram showing an overall functional configuration of a conventional wire electric discharge machining apparatus.

FIG. 5 is a schematic diagram of N in a conventional wire electric discharge machine.
It is explanatory drawing which shows the principal part of a C program example.

FIG. 6 is an explanatory diagram showing an example of a variable setting screen in a conventional wire electric discharge machining apparatus.

FIG. 7 is a plan view showing a state in which a work is attached to a surface plate in a conventional wire electric discharge machining apparatus and an embodiment of the present invention.

[Explanation of symbols]

1 NC program creation device, 2 NC program storage device, 3 NC program interpretation means, 4 positioning start coordinate information storage means, 5 mirror image information storage means,
6 coordinate rotation information storage means, 7 positioning execution means, 8
Mirror image execution means, 9 coordinate rotation execution means, 1
0 display, 32 data set information storage means,
33 Data set setting screen.

Claims (3)

[Claims] 1. A plurality of independent numerical control (NC) programs for machining individual machining shapes in multi-cavity machining, and a plurality of data setting programs corresponding to the plurality of independent numerical control (NC) programs. An independent data set setting screen and a data set storage information means for storing the display content thereof, and a plurality of independent numerical control (NC) programs and the plurality of data set setting screens and data set information storage corresponding thereto. A wire electric discharge machining apparatus, characterized in that a plurality of machining shapes for machining a plurality of machining shapes are set by setting individual data sets using a means. 2. The wire electric discharge machine according to claim 1, wherein the data set setting is one or more of positioning start coordinate information, mirror image information, and coordinate rotation information. 3. The data set setting screen exists for each machining shape, and the data set can be set and displayed independently of other machining shapes.
2. The wire electric discharge machine according to claim 1.