JPH07185943A - Method and device for electric discharge machining - Google Patents

Abstract

PURPOSE:To automatically exchange a number of works with machining electrodes by storing the fundamental actions to execute the positioning of the works, the measurement of the core deviation of the electrodes and the electric discharge machining by the data on the machining electrodes in a numerical control device. CONSTITUTION:The data on the positioning of works 2 and the data on the electric discharge machining are stored in a storing means mounted oh a work mounting jig, and the data on electrodes 1 are stored in a storing means mounted on the electrode mounting jig. The fundamental actions to execute the positioning of the works, the measurement of the core deviation of the electrodes and the electric discharge machining by the data are stored in a numerical control device 10. This constitution automatically exchanges a number of works 2 with the machining electrodes 1 by an exchanging means 130, and facilitates the preparation of the program from the positioning and measuring process of the works 2 to the electric discharge machining through the measurement process of the core deviation of the electrodes. In addition, the repetitive errors by the electrode exchange and the thermal displacement of a machine are corrected to execute the measurement process of correction of the core deviation of the electrodes on the electric discharge machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric discharge machining apparatus and an electric discharge machining method for exchanging a plurality of workpieces and automatically performing electric discharge machining using a plurality of machining electrodes.

[0002]

2. Description of the Related Art Conventionally, as a prior art document related to an electric discharge machine, one disclosed in Japanese Patent Laid-Open No. 3-178731 is known. FIG. 22 is an overall configuration diagram showing a conventional electric discharge machine. In FIG. 22, 1 is a machining electrode for electric discharge machining, 2 is a workpiece to be machined,
3 is a machining tank, 4 is a machining fluid such as insulating oil stored in the machining tank 3, 5 is a pulse current generator for supplying a machining voltage between the machining electrode 1 and the workpiece 2, and 8a is a spindle. 15 is a ball screw for moving the Z-axis direction, 8c is a ball screw for moving the workpiece 2 in the X-axis direction, 9a is a servomotor for rotationally driving the Z-axis direction ball screw 8a, and 9b is Y.
Servo motor that rotationally drives a ball screw (not shown) in the axial direction, 9c is a servo motor that rotationally drives the ball screw 8c in the X-axis direction, and 10 is each servo motor 9a, 9b, 9
A numerical controller for appropriately controlling the drive of c according to a machining program, 11 is a head located above the electric discharge machine,
Reference numeral 12 is a column that is a frame material that fixes and supports the head 11, 13 is a bed that is a base of the electric discharge machine, 14b is a moving table that moves the workpiece 2 together with the machining tank 3 in the Y-axis direction, and 14c. Is a moving table for moving the workpiece 2 in the X-axis direction together with the processing tank 3, 15 is a spindle for moving the machining electrode 1 in the Z-axis direction, 16 is an electrode for automatically exchanging the machining electrode 1 mounted on the spindle. An exchange device, 17 is an arm for grasping the machining electrode 1 or the like at the time of electrode exchange operation, 18 is a magazine rack in which various tools such as the machining electrode 1 can be stored,
Reference numeral 90 is a reference probe that is housed in the magazine rack 18, and 95 is a probe cover that protects the measurement probe 96 used in a coordinate measuring machine or the like from the working liquid 4.

Next, the operation of the prior art will be described. Here, a machining method in which a plurality of machining electrodes 1 are replaced, the reference of the machining electrodes 1 is measured by the measurement probe 96, and electric discharge machining is performed will be described.

In order to perform electric discharge machining at a predetermined position on the workpiece 2, it is necessary to measure the reference position of the workpiece 2 in advance. FIG. 25 is a data input diagram for the workpiece, which shows an example of data for positioning the workpiece 2 input to the numerical control device 10. In FIGS. 5 and 25 showing the state of data input described above, the variable H610 is the X distance 140 from the positioning start position A1 for measuring the upper surface of the workpiece 2, and the variable H620 is the upper surface of the workpiece 2. The Y distance 141 from the positioning start position A1 for measurement, the variable H615 is the X distance 142 from the positioning start position A1 to the side surface measurement position, and the variable H625 is the positioning start position A1.
To the side surface measurement position, the variable H601 is the Z distance 144 from the upper surface of the workpiece 2 in the side surface measurement,
The variable H247 is the positioning pattern and the variable H463 is the positioning speed. In carrying out the positioning measurement of the workpiece 2, necessary data is input to the variables as shown in FIG. 25 on the numerical controller 10. In the description here, a value is input as the data necessary for positioning the center of the column in order to measure the center position of the workpiece 2, as shown in FIG.

FIG. 23 is a main part process diagram showing a workpiece measuring process. 22 and 23, the reference probe 90 is attached to the head 11 according to a command from the numerical controller 10, and the reference probe 90 is moved to a point on the measurement probe 96. A Y-axis servo motor 9b is attached to the Y-axis moving table 14b via a ball screw (not shown).
Is connected to the X-axis direction moving table 14c via the ball screw 8c, the X-axis servo motor 9c is connected, and the main shaft 15 is connected via the ball screw 8a to the Z-axis servo motor 9a. ing. Numerical control device 10
The main shaft 15 in the vertical direction (Z-axis direction) in response to a command from
Then, by moving the moving tables 14b and 14c in the front-rear direction and the left-right direction (Y-axis direction, X-axis direction), the center position of the measuring probe 96 and the center of the column are determined to set the reference position (see FIG. 23 (a)). Next, the spindle 15 is moved up and down in accordance with a command from the numerical controller 10, and the moving table 14 is moved.
By moving b and 14c back and forth and left and right, they are moved to the positioning start position on the workpiece 2. Then, the pillar center of the workpiece 2 is positioned. The reference position obtained by the positioning measurement is stored as the work coordinate W1 system. In this way, the relative distance between the measurement probe 96 and the workpiece 2 is obtained. The positioning measurement based on the command from the numerical control device 10 was explained, but the operation box at hand (not shown)
Alternatively, manual positioning may be performed (see FIG. 23 (b)).

In order to continuously perform electric discharge machining while automatically exchanging a plurality of machining electrodes 1, it is necessary to measure the reference position of the machining electrode 1 immediately before the electric discharge machining. Figure 2
6 is a data input diagram for a machining electrode showing an example of data for measuring a reference position of the machining electrode 1 input to the numerical controller 10. In FIG. 26, a variable H110 is a positioning start position B1 for measuring the bottom surface of the machining electrode 1.
From the positioning start position B1 for measuring the bottom surface of the machining electrode 1
51, a variable H111 is an X distance 152 from the positioning start position B1 to the side surface measurement position, a variable H121 is a Y distance 153 from the positioning start position B1 to the side surface measurement position, and a variable H101 is a Z distance from the bottom surface of the machining electrode 1 in the side surface measurement.
Distance 154, variable H106 is electrode length 155, variable H2
47 is a positioning pattern, and variable H445 is a positioning speed. In performing the electrode core misalignment correction measurement of the machining electrode 1, necessary data is input to the variables as shown in FIG. 26 on the numerical controller 10. In this description,
As shown in FIG. 26, a value is input as data necessary for positioning the center of the column in order to measure the center position of the machining electrode 1.
In this data input, the sequence number means the magazine rack number.

Then, it is necessary to input the data necessary for the electric discharge machining. FIG. 27 is an electrical discharge machining data input diagram showing an example of data for electrical discharge machining input to the numerical control device 10. In FIG. 27, variables H01 and H1
6 and a variable H31 are X and Y pitch distances and machining depths indicating the respective first machining positions from the stored work coordinate reference position, and similarly variables H02, H17 and H.
32 is the second X and Y pitch distance and the working depth. A variable H201, a variable H251 and a variable H271 are the machining electrode 1 for roughing / finishing 1 machining at the first machining position, respectively.
No. and finishing 2 and finishing 3, and the number of the machining electrode 1 for machining and the machining condition number, similarly, the variables H202, H252 and H272 are the rough machining at the second machining position.
It is the number of the machining electrode 1 for finishing 1 machining, the number of the machining electrode 1 for finishing 2 and finishing 3, and the machining condition number. In the processing condition number, there is described a reduction margin on one side of the processing electrode 1, an E-pack of electrical conditions corresponding to the roughness of the finished surface, a left margin in the side direction and a left margin in the bottom direction. A variable H501 indicates W1 of the work coordinate system number and sets which of the above pitch distance data is to be used.
2 indicates W2 of the work coordinate system number, and is used to set which of the above pitch distance data is used.

FIG. 24 is a main part process chart showing the steps of the electric discharge machining method. In FIGS. 22 and 24, the first machining electrode 1 used for electric discharge machining in response to a command from the numerical control device 10 is used. Attach a certain electrode number T21 to the spindle 15,
Move to a determined point on the measurement probe 96.
Using the data of the sequence number N21 shown in FIG. 26, the spindle 15 is moved in the vertical direction and the moving tables 14b, 14c are moved in the front-rear direction and the left-right direction in accordance with a command from the numerical control device 10 to position the measuring probe 96 and the center of the column. Then, the electrode reference position is obtained. This operation is called electrode core misalignment correction measurement (see FIG. 24A). Next, it moves to the processing positions of variables H01 and H16 shown in FIG. Figure 2
The workpiece 2 is subjected to electric discharge machining with the data of the variable H271 of the machining condition number shown in FIG. A pulse current generator 5 applies a pulse current between the machining electrode 1 and the workpiece 2. Due to this energization, intermittent electric discharge is generated in the gap between the machining electrode 1 and the workpiece 2, and the workpiece 2 is processed by the electric discharge (see FIG. 24 (b)). When the electric discharge machining by the first machining electrode 1 is completed, the electrode number T which is the second machining electrode 1
22 is mounted on the spindle and moved to a defined point on the measuring probe 96. Sequence number N2 shown in FIG.
The electrode misalignment is corrected according to the command from the numerical controller 10 using the data of No. 2 (see FIG. 24 (c)). Next, the workpiece 2 is moved to the machining positions of the variables H02 and H17 shown in FIG. 27, and the workpiece 2 is subjected to electric discharge machining using the data of the variable H272 of the machining condition numbers shown in FIG. 27 (see FIG. 24 (d)).

As described above, there is a feature that the misalignment correction is automatically performed during each electric discharge machining and the electric discharge machining is performed, and the pre-setup for taking the electrode misalignment correction when using a plurality of machining electrodes 1 It has become possible to save work time. The measuring probe 96 does not electrically detect the contact with the machining electrode 1 and is of a touch type, so that it is not affected by dust, dust, or oil smoke caused by electric discharge machining. Even if misalignment correction is performed during each processing, the contact position detection accuracy is 1/100.
It can be suppressed to less than or equal to mm, and there is no precision defect.
Further, in the above-mentioned conventional example, the positioning method by the electrode core misalignment correction has been described by simply allocating the center of the machining electrode 1. However, even in the case of the machining electrode 1 having a different shape, the positioning pattern can be arbitrarily created and other than the center allocating. There is nothing wrong with the method.

Such a processing method can be realized with high accuracy and automation, and the set-up work for preliminarily correcting the misalignment of a plurality of electrodes can be omitted, so that the set-up time can be shortened.

Here, in Japanese Patent Laid-Open No. 1-146638, a readable / writable memory is built in a tool of a machine tool,
It is disclosed that information such as the correction amount of the diameter and length of the tool, the use time or the number of uses, the life time or the number of lives is stored in advance so that the tool life can be automatically managed. However, the tool core misalignment correction has not been automated, and the actual situation is that a great deal of time is still spent for tool misalignment correction and other setups.

Further, Japanese Patent Application Laid-Open No. 4-201124 discloses an electric discharge machining electrode and a device therefor capable of solving the above-mentioned problems. FIG. 28 shows an overall configuration diagram of this electric discharge machine. It should be noted that the same reference numerals and symbols are given to those having the same configuration or corresponding portions as those of the above-described conventional apparatus. In FIG. 28, 1
Reference numeral 00 denotes a memory tag capable of recording electrode information such as an electrode number, an amount of misalignment from a reference, a machining program, etc., which is mounted on one side of the outer peripheral surface of the shank 20. 123
Is an electrode information read / write means arranged at a position where the electrode information can be read from the memory tag 100. This is because a plurality of processing electrodes 1 having a memory tag 100 in which electrode information such as a unique electrode number, an electrode core misalignment amount, and a processing program are recorded in advance are stored in a magazine rack 18 and desired from the magazine rack 18. The machining electrode 1 is taken out while reading the machining electrode number, the electrode core misalignment correction is read to perform the electrode core misalignment correction, and then the machining program is read to perform the electric discharge machining based on the machining program.

With this device, the step of measuring the electrode misalignment on the electric discharge machine is not required, the operating time of the electric discharge machine is significantly improved, and the misalignment correction of the machining electrode can be automated. Further, since the machining program is stored in the electrode recording means, the memory capacity of the numerical control device can be reduced correspondingly, and the information of machining electrodes removed from the magazine rack can be easily managed.

[0014]

Since the conventional electric discharge machining apparatus and electric discharge machining method are configured as described above, if the machining electrode 1 is forgotten to be stored in the electrode exchanging device 16, a program is executed during automatic operation. It will stop. Further, even when the machining electrode 1 is housed in the electrode exchanging device 16, if there is even one forgetting input of various data relating to the machining electrode 1 which is prepared in the numerical controller 10 during the automatic operation. The program will stop. These simple mistakes are easy to make, and in order to re-automatically drive, there was a problem that the program had to be modified and started from the beginning. In addition, various data regarding the machining electrode 1 and various data regarding electric discharge machining are provided to the numerical controller 10.
There was also a problem that the machining program could not be started until it was input into.

Further, in the electric discharge machining apparatus shown in FIG. 28, which is an overall configuration diagram of the electric discharge machining electrode and its apparatus disclosed in Japanese Patent Laid-Open No. 4-201124, the machining electrode 1 is forgotten to be housed in the electrode exchanging device 16. In some cases, there is no problem as described above, except that the program is stopped during automatic operation, but the electrode core shift correction measurement process on the electric discharge machine is not necessary, so the electrode exchange device 16 is replaced. There is a problem that it is not possible to correct even the repeat error due to, and it is inferior in terms of high-precision processing. The measurement of the electrode core misalignment correction needs to be performed as an external setup. In addition, when considering from setup to electrical discharge machining, it is not a series of automation including measurement of the reference position of the workpiece 2, measurement of misalignment of the machining electrode 1, electrical discharge machining, etc. I can't say.

When a plurality of workpieces 2 are present and a plurality of machining electrodes 1 are overlapped for electric discharge machining, if a machining program is attached to the electrodes, the machining program concerning the machining position for each workpiece 2 There is a problem that recording becomes complicated. Further, when the reduction allowance of the machining electrode 1 for rough machining and the machining electrode 1 for finish machining are the same, a machining program is created by making a complicated description when trying to effectively utilize the machining electrode 1 for finish machining for rough machining. It is necessary, and if the storage capacity of the storage device such as the memory tag 100 is limited, there is a possibility that it cannot be stored.

Considering finally forming into a predetermined product and automatically exchanging a plurality of workpieces 2, the machining program is not attached to the machining electrodes, but rather the machining program It is neat to attach it to the part to be processed, which is convenient from the viewpoint of management.

Therefore, the present invention has been made in order to solve such a problem, and is highly efficient in automation from the positioning of the workpiece 2 to the electric discharge machining through the misalignment correction measurement of the machining electrode 1. An object of the present invention is to provide an electric discharge machining apparatus and an electric discharge machining method that are highly accurate and can easily create a machining program.

[0019]

Means for Solving the Problems Claim 1 or Claim 2
In the electric discharge machining apparatus or the electric discharge machining method according to the first aspect of the invention, the data setting means is used to set various data relating to the positioning of the workpiece and various data relating to the electric discharge machining in the storage means mounted on the workpiece mounting jig. A workpiece data setting step of storing the workpiece in the workpiece exchanging means, and an electrode data setting step of setting various data regarding the machining electrode in a storage means attached to an electrode mounting jig and storing the data in the automatic electrode / workpiece exchanging means. Reading various data relating to the workpiece stored in the storage means attached to the workpiece attaching jig during the exchange of the workpiece attaching jig from the automatic electrode / workpiece exchanging means Workpiece data reading process, check whether the work piece mounting jig is housed in the automatic electrode / workpiece exchanging means, and if the work piece mounting jig is housed, the work piece is processed. Check process to move the process to the data reading process, and if it is not stored, move the storage rack to the next step to check whether it is stored, and read the various data related to the work And a workpiece data transfer step of transferring it to the numerical control device as electric discharge machining data, and automatically attaching the workpiece mounting jig from the automatic electrode / workpiece exchanging means to a chuck installed at a predetermined position on the moving table. And a workpiece positioning step of positioning the workpiece by replacing the reference probe with the spindle when the positioning operation of the workpiece is not performed, and the automatic electrode / workpiece exchanging means. An electrode for reading various data relating to the processed electrode stored in the storage means attached to the electrode attachment jig during the replacement of the electrode attachment jig from And over data reading step,
An electrode data transfer step of transferring the read various data relating to the machining electrode as electrode misalignment data to the numerical control device and a positioning operation for exchanging the machining electrode and measuring the reference position of the machining electrode are not performed. Sometimes an electrode measuring step for measuring the center deviation amount for measuring the reference position of the machining electrode, an electric discharge machining step for electric discharge machining immediately after the electrode measuring step for measuring the center deviation amount, and a workpiece mounting jig. When the processing of the attached workpiece is completed, the workpiece is stored in the automatic electrode / workpiece exchanging means.

According to a third aspect or the fourth aspect of the electric discharge machining apparatus or the electric discharge machining method, various data relating to the positioning of the workpiece and the machining electrode are stored in the storage means mounted on the workpiece mounting jig by using the data setting means. Data setting step of setting various data relating to electric discharge machining and various data relating to electric discharge machining as one unit and storing them in the automatic electrode / workpiece exchanging means, and attaching the workpiece from the automatic electrode / workpiece exchanging means A data reading step of reading various data relating to the machining electrode and the workpiece stored in the storage means attached to the workpiece attaching jig during the replacement of the jig; and the automatic electrode / processing Check whether the work attachment jig is stored in the work exchanging means, and if it is stored, move the processing to the data reading step, and if not store it. A checking step of the storage rack to check whether they are housed transferred to the next step,
From the automatic electrode / workpiece exchanging means, a data transfer step of transferring the read various data regarding the machining electrode and the workpiece as electrode misalignment data, workpiece positioning data and electric discharge machining data to a numerical controller. The workpiece mounting jig is automatically replaced with a chuck installed at a predetermined position on the moving table, and when the positioning operation of the workpiece is not performed, the reference probe is replaced with the main spindle to perform the workpiece processing. A workpiece positioning step for positioning a workpiece,
The electrode measurement step of exchanging the machining electrode and measuring the misalignment amount for measuring the reference position of the machining electrode when the positioning operation for measuring the reference position of the machining electrode is not performed, and the misalignment amount measurement are performed. An electric discharge machining step of performing electric discharge machining immediately after the electrode measuring step, and a machining object stored in the automatic electrode / workpiece exchanging means when machining of the workpiece mounted on the workpiece mounting jig is completed. And an article storage step.

In the electric discharge machining apparatus or the electric discharge machining method according to the fifth or sixth aspect, various data relating to the positioning of the workpiece and machining are stored in the storage means attached to the workpiece attaching jig using the data setting means. A data setting step of setting various data relating to electrodes and various data relating to electric discharge machining as one set and storing them in the automatic electrode / workpiece exchanging means, and the workpiece from the automatic electrode / workpiece exchanging means A data reading step of reading various data relating to the machining electrode and the workpiece stored in the storage means attached to the workpiece attaching jig during the process of exchanging the attaching jig; It is checked whether the workpiece mounting jig is stored in the workpiece exchanging means, and if it is stored, the process is transferred to the data reading step and it is not stored. At the time, the storage rack is moved to the next step to check whether or not it is stored, and the read data about the machining electrode and the workpiece are used as electrode misalignment data, workpiece positioning data, and electrical discharge machining data. Data transfer step of transferring to the numerical control device as the above, and automatically exchanging the workpiece mounting jig from the automatic electrode / workpiece exchanging means to a chuck installed at a predetermined position of the moving table, The work piece positioning step of positioning the work piece by replacing the reference probe with the spindle when the work piece positioning operation is not performed, and when the work electrode is replaced, the work electrode is set to the automatic electrode / work piece. When not stored in the workpiece exchanging means, the command for canceling the misalignment measurement for measuring the reference position of the machining electrode and the electric discharge machining is numerically controlled. And a command output step of outputting the machining electrode, and measuring the reference position of the machining electrode when the machining electrode is replaced and the positioning operation for measuring the reference position of the machining electrode is not performed. Process, an electric discharge machining process in which electric discharge machining is performed immediately after the electrode measuring process for measuring the amount of misalignment, and the machining of the workpiece mounted on the workpiece mounting jig is completed, the automatic electrode And a workpiece storing step of storing the workpiece in the workpiece exchange means.

Further, in the electric discharge machining apparatus or the electric discharge machining method according to claim 7 or 8, in addition to the means provided in any one of claims 1 to 6, a data setting means is used to store in the storage means. The data setting step of setting various data regarding positioning of the workpiece, various data regarding machining electrodes, and various data regarding electric discharge machining is set on the workpiece mounting jig as various data regarding positioning of the workpiece. Set the X dimension, Y dimension, and Z dimension from the reference position of one of the plurality of positions to the measurement position on the side surface of the workpiece, the X dimension and Y dimension to the measurement position on the upper surface, the plate thickness, and the positioning method. , X dimension, Y dimension and Z dimension from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode and X dimension and Y dimension from the measurement position on the bottom surface as various data relating to the machining electrode. Set the positioning method, and sets the processing position data and the processing electrode number and the machining condition column number or machining condition number from the set reference position by said workpiece positioning as various data concerning the electric discharge machining.

Further, in the electric discharge machining apparatus or the electric discharge machining method according to claim 9 or 10, the machining electrode stored in the memory means in addition to the means provided in any one of claims 1 to 6. In the data reading step of reading various data relating to the above, when the stored various data are read, a signal of being used is recorded, and when the signal of being used is read, data to be transferred to the numerical controller as electrode misalignment data. A command for canceling the transfer process and the electrode measuring process for measuring the misalignment amount for measuring the reference position of the machining electrode is output to the numerical controller.

According to the eleventh or twelfth aspect of the electric discharge machining apparatus or the electric discharge machining method, in addition to the means provided in any one of the first to sixth aspects, the machining target stored in the storage means is provided. In the data reading step of reading various data relating to the object and the electric discharge machining, when the stored various data are read, a signal of being used is recorded, and when the signal of being used is read, numerical control is performed as workpiece positioning data. A command for canceling the data transfer step of transferring to the apparatus and the workpiece positioning step of positioning the workpiece is output to the numerical controller.

Further, in the electric discharge machining apparatus or the electric discharge machining method according to claim 13 or 14, in addition to the means provided in claim 5 or 6, when the machining electrode is replaced,
The command output step for instructing the numerical control device when the machining electrode is not housed temporarily suspends the operation of the numerical control device and attaches the electrode as a machining electrode number and various data relating to the machining electrode on the monitor screen. Displaying an input section for setting various data of X dimension, Y dimension and Z dimension from the center of the jig to the measurement position on the side surface of the machining electrode and X dimension, Y dimension and positioning to the measurement position on the bottom surface, When various data are set and input and the machining electrode is housed in the automatic electrode / workpiece exchanging means, the electrode mounting jig having the machining electrode mounted thereon is housed, the numerical control device starts to operate again.

[0026]

According to the first or second aspect of the present invention, first, the data setting means is used to set the workpiece positioning data and the electric discharge machining data in the storage means to be attached to the workpiece attaching jig, and the electrode attaching jig is set. The electrode misalignment data is set in the storage means attached to the and stored in the automatic electrode / workpiece exchange means. By activating the numerical controller or automatic electrode / workpiece exchange means, the automatic electrode / workpiece exchange means
Judge whether the workpiece mounting jig is stored,
Read the contents of the storage means attached to the workpiece mounting jig and transfer the workpiece positioning data and electrical discharge machining data to the numerical controller while the workpiece mounting jig is being replaced only when it is stored. , It operates so as to be attached to a chuck installed at a predetermined position on the moving table. The reference probe is replaced with the spindle, and the workpiece is positioned based on the read workpiece positioning data, and the coordinate position is set. Next, in the middle of exchanging the electrode mounting jig according to the command of the necessary machining electrode number from the numerical controller, the contents of the storage means mounted on the electrode mounting jig are read and the electrode misalignment data is transferred to the numerical controller. Then, the electrode mounting jig is attached to the main shaft, and the misalignment amount is measured by measuring the reference position of the machining electrode from the read electrode misalignment data. The above-described operation is repeated until all the read electrical discharge machining data is used, by performing electrical discharge machining to a desired machining position, surface roughness, and size from the initially read electrical discharge machining data. When all the machining of the work piece is completed, it operates so that the work piece mounting jig mounted on the chuck is stored in the automatic electrode / work piece exchange means, and the storage rack for the automatic electrode / work piece exchange means is opened. It works to rotate to the next step.

In the third or fourth aspect, first, the data setting means is used to set the workpiece positioning data, the electrical discharge machining data, and the electrode misalignment data in the storage means attached to the workpiece attaching jig. Stored in automatic electrode / workpiece exchange means. By activating the numerical controller or activating the automatic electrode / workpiece exchanging means, the automatic electrode / workpiece exchanging means judges whether or not the workpiece mounting jig is housed, and only when it is housed. While replacing the workpiece mounting jig, the contents of the storage means mounted on the workpiece mounting jig are read and the workpiece positioning data, electrical discharge machining data, and electrode misalignment data are transferred to the numerical controller.
It operates so as to be attached to a chuck installed at a predetermined position on the moving table. The reference probe is replaced with the spindle, and the workpiece is positioned based on the read workpiece positioning data, and the coordinate position is set. Next, the electrode attachment jig is attached to the spindle according to a required machining electrode number command from the numerical control device, and the misalignment amount is measured by measuring the reference position of the machining electrode from the read electrode misalignment data. From the read electric discharge machining data, electric discharge machining is performed to a desired machining position, surface roughness, and size, and the above operation is repeated until all the read electric discharge machining data are used. When all the machining of the work piece is completed, it operates so that the work piece mounting jig mounted on the chuck is stored in the automatic electrode / work piece exchange means, and the storage rack for the automatic electrode / work piece exchange means is opened. It works to rotate to the next step.

In the fifth or sixth aspect, first, the data setting means is used to set the workpiece positioning data, the electric discharge machining data, and the electrode misalignment data in the storage means mounted on the workpiece mounting jig. Stored in automatic electrode / workpiece exchange means. By activating the numerical controller or activating the automatic electrode / workpiece exchanging means, the automatic electrode / workpiece exchanging means judges whether or not the workpiece mounting jig is housed, and only when it is housed. While replacing the workpiece mounting jig, the contents of the storage means mounted on the workpiece mounting jig are read and the workpiece positioning data, electrical discharge machining data, and electrode misalignment data are transferred to the numerical controller.
It operates so as to be attached to a chuck installed at a predetermined position on the moving table. The reference probe is replaced with the spindle, and the workpiece is positioned based on the read workpiece positioning data, and the coordinate position is set. Next, it operates so as to exchange the machining electrode according to the command of the necessary machining electrode number from the numerical controller, but the electrode mounting jig is not accommodated in the automatic electrode / workpiece exchanging means at the commanded machining electrode number. If it is stored, the command to cancel the misalignment measurement to measure the reference position of the machining electrode and the electric discharge machining is output to the numerical controller, and if it is stored, the electrode mounting jig is mounted on the spindle, and the read electrode misalignment data is read. Then, the misalignment amount is measured to measure the reference position of the machining electrode. The above-mentioned operation is repeated until the read electrical discharge machining data is subjected to electrical discharge machining to a desired machining position, surface roughness, and dimensions, and all of the read electrical discharge machining data is used. When all the machining of the work piece is completed, it operates so that the work piece mounting jig mounted on the chuck is stored in the automatic electrode / work piece exchange means, and the storage rack for the automatic electrode / work piece exchange means is opened. It works to rotate to the next step.

In the seventh or eighth aspect, in addition to the operation of any one of the first to sixth aspects, the data necessary for positioning the workpiece is on the workpiece mounting jig. Items of X dimension, Y dimension and Z dimension from the reference position of one of the set plurality to the measurement position on the side surface of the workpiece and X dimension and Y dimension to the measurement position of the upper surface, plate thickness and positioning method The data required to perform the electrode core misalignment correction measurement are the X dimension, Y dimension and Z dimension from the center of the electrode mounting jig to the measurement position on the side of the machining electrode and the X dimension and Y dimension from the bottom measurement position. In the item of and positioning method, the data required for electrical discharge machining is entered in the items of machining position data, machining electrode number, machining condition column number or machining condition number from the reference position set by workpiece positioning. by doing Data is 憶 i.e., processing Puraguramu is adapted to be created.

According to the ninth or tenth aspect of the present invention, in addition to the operation of any one of the first to sixth aspects, the electrode mounting jig is replaced while the electrode mounting jig is replaced by the automatic electrode / workpiece replacement means. When reading the contents of the storage means attached to the tool, transfer the electrode misalignment data to the numerical controller,
The used signal is recorded. When the signal of "used" is read when reading the contents of the storage means, the transfer of the electrode misalignment data to the numerical control device and the misalignment amount measurement for measuring the reference position of the machining electrode are canceled. Operates to output a command to the numerical controller.

According to claim 11 or claim 12,
In addition to the operation according to any one of claims 1 to 6, the content of the storage means attached to the attachment jig is read during the exchange of the workpiece attachment jig by the automatic electrode / workpiece exchange means. At this time, the workpiece positioning data and the electric discharge machining data are transferred to the numerical control device, and a signal of being used is recorded. When a signal of "used" is read when reading the contents of the storage means, a command for canceling the transfer of the workpiece positioning data to the numerical controller and the positioning of the workpiece is issued by the numerical controller. To output to.

In Claim 13 or Claim 14,
In addition to the function of claim 5 or claim 6, when the numerical control device instructs the machining electrode number for exchanging the machining electrode to the automatic electrode / workpiece exchanging means, the electrode mounting jig is assigned to the machining electrode number. If is not stored, the operation of the numerical controller is temporarily stopped, and the X dimension from the center of the electrode mounting jig to the measurement position on the side of the machining electrode is displayed on the monitor screen as the machining electrode number and various data related to the machining electrode. After inputting the necessary data according to the displayed data setting contents, display the input section for setting the Y dimension, Z dimension and various data such as the X dimension and Y dimension to the measurement position on the bottom and the positioning method. After the set is completed, the required machining electrode is attached to the electrode mounting jig, and the automatic electrode / workpiece replacement means stores the electrode mounting jig in the machining electrode number. Again it determines that starts the operation of the numerical controller.

[0033]

EXAMPLES The present invention will be described below based on specific examples. <First Embodiment> FIG. 1 is an overall configuration diagram showing an electric discharge machine in an electric discharge machine and an electric discharge method according to a first embodiment of the present invention. In this embodiment, the same reference numerals and symbols are given to those having the same configurations or corresponding portions as those of the above-described conventional apparatus, and detailed description thereof will be omitted.
In FIG. 1, 131 is a data setting means for setting various data regarding positioning of the workpiece 2, various data regarding the machining electrode 1 and various data regarding electric discharge machining, and is recorded in the memory tag 100 which is a storage means here. It Thirteen
Reference numeral 0 is composed of an arm 17, a magazine rack 18, and a drive unit 122. The workpiece mounting jig 132 and the electrode mounting jig 1
The determination means 120 determines whether or not 34 is stored, and drives the magazine rack 18 and the arm 17 to a position where they can be exchanged. An automatic electrode / workpiece exchange means (AWC), a reading means here. The (electrode information read / write means) 123 reads the information recorded in the memory tag 100. Numerical control unit (NC) 10
A basic program for the operation of positioning the work piece 2, replacing the working electrode 1, measuring the electrode core misalignment correction, and working based on the data transferred from the reading means 123 is stored in. In addition, in the following description, the workpiece 2 is processed into the processing tank 3
The moving table 14b for moving the Y-axis direction together with the moving table 14c for moving the workpiece 2 together with the processing tank 3 in the X-axis direction are the moving tables 14.

Next, the procedure of the automatic operation method of the electric discharge machining apparatus according to the first embodiment of the present invention will be described with reference to the flow chart of FIG.
And FIG. 5 will be described. First, the data setting means 131 inputs the following data. (1) Data related to positioning of the work piece 2 and electric discharge machining (2) Data related to misalignment correction measurement of the machining electrode 1 The format of this input data is variable format and man-machine interface format. ing. Specifically, it will be described later with reference to FIGS. 14, 15, 16 and 17. The input data concerning the misalignment correction measurement of the machining electrode 1 is attached to one surface of the outer peripheral surface of the electrode attachment jig 134 to which the machining electrode 1 is attached.
00, and the inputted data relating to the positioning of the workpiece 2 and the electric discharge machining are stored in the memory tag 100 mounted on one surface of the outer peripheral surface of the workpiece mounting jig 132 to which the workpiece 2 is mounted. Record and fix these electrode mounting jigs 134
The workpiece attaching jig 132 and the workpiece attaching jig 132 are inserted into the corresponding storage portions of the magazine rack 18 of the automatic electrode / workpiece exchanging means 130 (step S1).

When the automatic electrode / workpiece exchanging means 130 is activated, the magazine rack 18 is driven to the start position by the driving section 122, and the workpiece attaching jig 132 is stored by the judging means 120. The magazine rack 18 is driven to the position where it is located (steps S2, S3, S4). When the magazine rack 18 stops at the position where the workpiece mounting jig 132 is stored, the determination means 120 instructs the numerical control device 10 to store the storage part number, and the arm 17 is driven based on the information. ing. The data stored in the memory tag 100 of the workpiece mounting jig 132 by the reading means 123 during the process of exchanging the workpiece mounting jig 132 by the arm 17 to the chuck 133 mounted on the moving table 14 of the electric discharge machine. Is read, and the workpiece positioning and electric discharge machining data is transferred to the numerical controller 10 in the form of a variable (step S
5). This data is stored in a predetermined memory area of the numerical controller 10 (processing data call 140 in FIG. 4). After that, the numerical controller 10 commands the servomotors 9a, 9b, 9c to move the workpiece mounting jig 132 to the chuck 133, and moves the moving table 14 to the chuck 133 and clamps it (step S6).

Now, the numerical controller 10 after receiving the workpiece positioning and electric discharge machining data transferred from the reading means 123 will be briefly described. FIG. 4 shows the configuration of a basic program stored in the numerical control device 10 for positioning of a workpiece, electrode replacement, electrode core misalignment correction measurement, and electric discharge machining. It is a block diagram showing a flow. The basic program here has a configuration that meets the following specifications. Number of processing pitches for the work piece ... 12 processing condition rows ... 4 types (rough,
Medium, finishing 1, finishing 2) Positioning pattern: 6 types (column center, hole center, corner) Misalignment correction pattern: 5 types (column center, corner)

In FIG. 4, the basic program is roughly divided into two structures, a positioning program for the workpiece 2 and an electric discharge machining program. Reference numeral 150 is a program for performing a positioning operation. A positioning program that uses the positioning variable data stored in the memory by the positioning data call 149 as a calling positioning program, 1
52 is an electrode replacement command for calling variable data relating to electric discharge machining stored in the memory by the machining data calling 151, and is an electrode replacement command for issuing an electrode replacement command, and 154 is an electrode misalignment data calling 1
The electrode core misalignment program 156, which is the variable data relating to the electrode misalignment correction stored in the memory by 53, is used as a misalignment correction measurement program.
5 is a process condition number call that calls variable data relating to the process data stored in the memory by 5 and selects a process condition number. Among these numbers are the finish surface roughness, the electrical conditions for the electrode reduction allowance, the bottom surface direction, and the side surface direction. Data for the remaining fee is stored. A machining program 157 is a program for actually performing electric discharge machining from the condition number call 156 and data such as machining depth. This basic program is configured to operate in the order of rough, medium, finishing 1, and finishing 2. The above-described programs for positioning the workpiece, measuring electrode core misalignment correction, and electric discharge machining are rough machining 141, It operates in the program blocks of the intermediate machining 142, the finishing 1 machining 143, and the finishing 2 machining 144.

The numerical controller 10 stores a storage number in which a reference probe 90, which is a probe for positioning the workpiece 2, is stored (usually the storage number is T10).
Is issued and the reference probe 90 is already attached to the spindle, no replacement command is issued (step S7). Reference probe 9
0 by the automatic electrode / workpiece changing means 130
(Step S8), the reference probe 90 is moved so that the tip of the reference probe 90 is located at the set position on the measurement probe 96, that is, the point of B1 in FIG. Step S9) (FIG. 3B)
reference).

When positioning the workpiece 2, the position A1, on the workpiece mounting jig 132 set in FIG. 5, is set.
The positioning start position is obtained by the numerical controller 10 from any one of A2, A3, A4 and A5 and the plate thickness data of the workpiece 2 of the data regarding the positioning of the workpiece 2 stored in the memory. For example, when the positioning start location is designated as A1, the reference probe 90 is set at the point B2 in FIG.
The tip is moved so as to be positioned, and the positioning operation is performed from that position (step S10) (see FIG. 11C). In this way, the relative distance to the measurement probe 96 fixed to the probe cover 95 is obtained. The above-mentioned positioning start place is the workpiece mounting jig 1 shown in FIG.
The four corners of 32 and the central part are A1, A2, and A, respectively.
The coordinate position is stored in advance by the numbers 3, A4 and A5.

In the above-mentioned positioning operation, six types are prepared, such as corner positioning for setting each corner reference position of a rectangular shape, column center positioning for setting a center reference position, and hole center positioning. Since there are five positioning start positions, 30 patterns of positioning are prepared. The above-mentioned positioning start location is A
Although 5 types of A1, A2, A3, A4, and A5 have been described, if the type of the workpiece mounting jig 132 for mounting the workpiece 2 is different, the above-mentioned respective positioning start positions are different, and thus the jigs are used. Number and A1, A2, A3, A4, A mentioned above
It is easily conceivable to distinguish by 5, or to have many numbers such as A11.

After the positioning of the workpiece 2 is completed, when the numerical controller 10 issues a storage number in which the necessary processing electrodes are stored, the magazine rack 18 is driven by the drive unit 122 to the electrode storage number position and stopped. . While exchanging the electrode mounting jig 134 with the main shaft 15 of the electric discharge machine by the arm 17, the reading means 123 reads the data stored in the memory tag 100 of the electrode mounting jig 134 and sends it to the numerical controller 10 in the form of a variable. Transfer the electrode misalignment data.
This data is stored in a predetermined memory area of the numerical controller 10 (processing data call 14 in FIG. 4).
0). After that, the numerical controller 10 sets the electrode mounting jig 134.
Servomotors 9a, 9b, 9 to move the spindle to the spindle 15.
Instructing c, the moving table 14 is moved to the main shaft 15 and clamped (steps S11 and S12). After exchanging the machining electrode 1, the set position on the measurement probe 96, that is,
The tip of the electrode for roughing is moved so as to be located at the point B1 in FIG. 5, electrode misalignment is measured, the electrode reference position is determined, the amount of electrode misalignment is determined, and stored in the numerical controller 10 (step S14) (see FIG. 3 (d)). Further, in the operation of the electrode core misalignment correction measurement described above, the two-sided measurement for measuring the correction amount from each corner reference position of the square shape, the column center measurement and the hole center measurement for measuring the correction amount from the electrode center position, etc. 6 types are prepared.

When the electrode misalignment correction measurement is completed, the numerical controller 10 sends a command to the servomotors 9a, 9b, 9c to move the rough machining electrode to the machining position to move the rough machining electrode to the machining position. The electric discharge machining is performed with the electric condition and the amount of driving specified by the machining condition number called in 156 in FIG. 4 (step S15) (FIG. 3).
(See (e)).

When the rough machining is completed, as shown in FIG. 4, the numerical controller 10 searches the rough machining 141 for 12 machining pitches to determine whether there is similar rough machining.
After that, it proceeds to the block 142 for medium processing. Whether or not the electric discharge machining for one workpiece 2 is completed is determined by rough machining 141, medium machining 142, and finish 1 machining 14 of the basic program stored in the numerical controller 10.
3, it is determined that the finishing 2 processing 144 has been completed (step S16). Step S16 of FIG.
If NO is determined in step S11, the above-described steps S11 to S15 are repeated until YES is determined (see FIGS. 3 (f) and 3 (g)).

As described above, in the electric discharge machining apparatus and the electric discharge machining method of the first embodiment of the present invention, a plurality of workpieces 2 are exchanged and positioned, and a plurality of machining electrodes 1 are exchanged and positioned so that the workpieces are 2 for automatically performing electric discharge machining using the machining electrode 1, and positioning the workpiece 2 in the storage means including the memory tag 100 attached to the workpiece attachment jig 132 using the data setting means 131. Workpiece data setting step of setting various data relating to electric discharge machining and various data relating to electric discharge machining and storing them in the automatic electrode / workpiece exchanging means 130, and the memory tag 10 attached to the electrode attachment jig 134.
An electrode data setting step of setting various data related to the machining electrode 1 in the storage means consisting of 0 and storing it in the automatic electrode / workpiece exchanging means 130, and the automatic electrode / workpiece exchanging means 130.
Reading various data relating to the workpiece 2 stored in the storage means including the memory tag 100 attached to the workpiece attaching jig 132 during the process of exchanging the workpiece attaching jig 132 from the workpiece data reading. The process and whether or not the workpiece attaching jig 132 is housed in the automatic electrode / workpiece exchanging means 130 are checked, and if stored, the process is transferred to the workpiece data reading step and not stored. At the time, the numerical control device carries out a check process for moving the storage rack including the magazine rack 18 to the next step to check whether the storage rack is stored, and various read data of the workpiece 2 as workpiece positioning data and electrical discharge machining data. Workpiece data transfer process for transferring to the work piece 10, and the work piece mounting jig 132 from the automatic electrode / workpiece exchange means 130.
The chuck 1 installed at a predetermined position on the moving table 14
33, and a workpiece positioning step of positioning the workpiece 2 by replacing the reference probe 90 with the spindle 15 when the workpiece 2 is not positioned.
From the automatic electrode / workpiece exchange means 130 to the electrode mounting jig 1
An electrode data reading step of reading various data relating to the machining electrode 1 stored in the storage means mounted on the electrode mounting jig 134 during the exchange of 34, and various data relating to the read machining electrode 1 are referred to as electrode misalignment data. A step of transferring the electrode data to the numerical control device 10 as a process, and a misalignment amount for measuring the reference position of the machining electrode 1 when the machining electrode 1 is replaced and the positioning operation for measuring the reference position of the machining electrode 1 is not performed. When the electrode measuring step of performing measurement, the electric discharge machining step of performing electric discharge machining immediately after the electrode measuring step of measuring the misalignment amount, and the machining of the workpiece 2 mounted on the workpiece mounting jig 132 are completed. Work piece 2 is automatically electroded
And a workpiece storing step of storing the workpiece in the workpiece exchanging means 130. Based on the workpiece data setting step and the electrode data setting step, the workpiece data reading step to the workpiece storing step are performed. The steps are sequentially performed and the steps from the workpiece data setting step to the workpiece storing step are sequentially repeated.

Therefore, first, the workpiece positioning data and the electric discharge machining data are set in the storage means attached to the workpiece attachment jig by using the data setting means, and the electrode core misalignment is set in the storage means attached to the electrode attachment jig. Data is set and stored in the automatic electrode / workpiece exchange means. By activating the numerical control device or activating the automatic electrode / workpiece exchanging means, the automatic electrode / workpiece exchanging means determines whether or not the workpiece mounting jig is housed, and only when it is housed. While exchanging the workpiece mounting jig, the contents of the storage means mounted on the workpiece mounting jig are read and the workpiece positioning data and EDM data are transferred to the numerical control device and are transferred to the predetermined position on the moving table. Operated to attach to the installed chuck. The reference probe is exchanged with the spindle, and the workpiece positioning data is read from the workpiece positioning data to set the coordinate position. Next, in the middle of exchanging the electrode mounting jig according to the command of the necessary machining electrode number from the numerical controller, the contents of the storage means mounted on the electrode mounting jig are read and the electrode misalignment data is transferred to the numerical controller. Then, the electrode mounting jig is mounted on the main shaft, and the misalignment amount is measured by measuring the reference position of the machining electrode from the read electrode misalignment data. The electrical discharge machining data read first is subjected to electrical discharge machining to a desired machining position, surface roughness, and size, and the above operation is repeated until all the read electrical discharge machining data are used. When all the machining of the work piece is completed, the work piece attachment jig attached to the chuck is operated to be stored in the automatic electrode / work piece exchange means, and the storage rack of the automatic electrode / work piece exchange means is operated. It is operated to rotate to the next step.

Therefore, the data regarding the positioning of the workpiece and the data regarding the electric discharge machining are stored in the storage means mounted on the workpiece mounting jig, and the data regarding the electrodes are stored in the storage means mounted on the electrode mounting jig. Based on that data, the basic operations for positioning the workpiece, measuring the electrode misalignment, and performing electrical discharge machining were stored in the numerical control device.Therefore, a large number of workpieces and machining electrodes were automatically replaced, This facilitates program creation from the workpiece positioning measurement process to the electrode core misalignment measurement process to electrical discharge machining, and enables automatic operation. Furthermore, since the electrode core misalignment correction measurement process is performed on the electric discharge machine, it is not necessary for the operator to carry out setup operations such as electrode core misalignment correction measurement and positioning of the work piece. It is possible to correct thermal displacement and perform high-precision electrical discharge machining. In addition, if the workpiece and the electrode can be manufactured, the machining program can be started simply by storing the jig for mounting it in the automatic electrode / workpiece exchanging means, and the electrical discharge machining can be started efficiently and the electrical discharge machining can be started. However, there is an effect that a machining program for another workpiece can be easily created. In particular, when performing additional machining such as precision driving on a workpiece that has already been subjected to electrical discharge machining, data regarding the positioning of the workpiece and data regarding the misalignment measurement of the electrodes can be left as data, which is simple. The machining program can be modified and created.

<Second Embodiment> FIG. 6 is an overall configuration diagram showing an electric discharge machining apparatus and an electric discharge machining apparatus in an electric discharge machining method according to a second embodiment of the present invention. In this embodiment, the same reference numerals and symbols are given to those having the same configurations or corresponding portions as those of the first embodiment described above, and the description thereof will be omitted.

The procedure of the automatic operation method of the electric discharge machining apparatus according to the second embodiment of the present invention is based on the flow chart of FIG. 7 and is a main part process diagram showing the electric discharge machining process of FIG. 3, and FIG. 4 and FIG. And explain. First of all, the data setting means 1
At 31, the following data is input. (1) Data related to positioning of the workpiece 2 (2) Data related to misalignment measurement of the machining electrode 1 (3) Data related to electrical discharge machining The input data format is variable format and man-machine interface format. It is supposed to do. Specifically, it will be described later with reference to FIGS. 10 and 13. The input data regarding the positioning of the workpiece 2 and the data regarding the electric discharge machining and the data regarding the misalignment correction measurement of the machining electrode 1 are provided on one surface of the outer peripheral surface of the workpiece attaching jig 132 to which the workpiece 2 is attached. The attached memory tag 100
To record. The workpiece mounting jig 132 and the electrode mounting jig 134 are inserted into the corresponding storage portions of the magazine rack 18 of the automatic electrode / workpiece exchanging means 130.

In FIG. 7, steps S1 to S
The operation up to 4 is almost the same as that of the first embodiment, and therefore the description is omitted here. Further, the steps different from the first embodiment are that step S12 in FIG. 2 is unnecessary and step S21 is different. When the magazine rack 18 stops at the position where the workpiece mounting jig 132 is stored, the determination means 120 instructs the numerical control device 10 to store the storage part number, and the arm 17 is driven based on the information. There is. Workpiece mounting jig 132 by arm 17
During the exchange with the chuck 133 mounted on the moving table 14 of the electric discharge machine, the reading means 123 reads the data stored in the memory tag 100, and the numerical controller 10 positions and discharges the workpiece in a variable format. The processing data and the electrode misalignment data are transferred (step S21).
This data is stored in a predetermined memory area of the numerical controller 10. The operations in steps S6 to S11 are almost the same as those in the first embodiment, and therefore the description thereof is omitted here. When the positioning of the work piece 2 is completed, the numerical control device 10 commands the storage number in which the necessary electrodes are stored, and the arm 17 operates to mount the electrode mounting jig 134 on the spindle 15, and clamps. At this time, the reading means 123 causes the memory tag 10 of the electrode mounting jig 134 during the electrode replacement.
The operation of reading the data stored in 0 and transferring the workpiece positioning and electrical discharge machining data in the form of variables to the numerical controller 10 is not performed. Since the operations in steps S13 to S16 are almost the same as those in the first embodiment, the description thereof is omitted here.

As described above, according to the electric discharge machining apparatus and the electric discharge machining method of the second embodiment of the present invention, a plurality of workpieces 2 are exchanged and positioned, and a plurality of machining electrodes 1 are exchanged and positioned so that the workpieces are processed. 2 for automatically performing electric discharge machining using the machining electrode 1, and positioning the workpiece 2 in the storage means including the memory tag 100 attached to the workpiece attachment jig 132 using the data setting means 131. Data setting step for setting various data regarding the machining electrode 1, various data regarding the machining electrode 1 and various data regarding the electric discharge machining as one unit and storing them in the automatic electrode / workpiece exchanging means 130, and automatic electrode / workpiece exchanging. The workpiece mounting jig 132 is replaced while the workpiece mounting jig 132 is being exchanged from the means 130.
A data reading step of reading various data relating to the machining electrode 1 and the workpiece 2 stored in the storage means attached to the workpiece, and the workpiece mounting jig 132 is housed in the automatic electrode / workpiece exchanging means 130. Checking whether or not it is stored, the process is transferred to the data reading process when it is stored, and when it is not stored, the storage rack including the magazine rack 18 is moved to the next step to check whether it is stored or not. , A data transfer step of transferring the read various data regarding the machining electrode 1 and the workpiece 2 to the numerical controller 10 as electrode misalignment data, workpiece positioning data and electric discharge machining data, and automatic electrode / workpiece exchanging means. From 130, the workpiece mounting jig 132 is automatically replaced with the chuck 133 installed at a predetermined position on the moving table 14, A reference measuring element 90 when not performing a positioning operation of the object 2 to replace the spindle 15 the workpiece 2
Workpiece positioning step for positioning and machining electrode 1
And an electrode measuring step for measuring the reference position of the machining electrode 1 when the positioning operation for measuring the reference position of the machining electrode 1 is not carried out, and the electrode measurement for measuring the center deviation amount. Immediately after the process, the electric discharge machining process is performed, and when the machining of the workpiece 2 mounted on the workpiece mounting jig 132 is completed, the workpiece storing step is stored in the automatic electrode / workpiece exchanging means 130. Based on the data setting step, the data reading step to the workpiece storing step are sequentially performed, and the data setting step to the workpiece storing step are sequentially repeated.

Therefore, first, the workpiece positioning data, the electric discharge machining data, and the electrode misalignment data are set in the storage means mounted on the workpiece mounting jig by using the data setting means, and the automatic electrode / workpiece exchanging means is set. It is stored. By activating the numerical control device or activating the automatic electrode / workpiece exchanging means, the automatic electrode / workpiece exchanging means determines whether or not the workpiece mounting jig is housed, and only when it is housed. While replacing the workpiece mounting jig, the contents of the storage means mounted on the workpiece mounting jig are read, and the workpiece positioning data, electrical discharge machining data, and electrode misalignment data are transferred to the numerical controller and moved. It is operated so as to be attached to a chuck installed at a predetermined position on the table. The reference probe is exchanged with the spindle, and the workpiece positioning data is read from the workpiece positioning data to set the coordinate position. Next, an electrode attachment jig is attached to the spindle according to a required machining electrode number command from the numerical controller, and a misalignment amount measurement is performed to measure the reference position of the machining electrode from the read electrode misalignment data. The above-mentioned operation is repeated until all the read data of the electric discharge machining are used after performing the electric discharge machining to the desired machining position, surface roughness and dimension from the read data of the electric discharge machining. When all the machining of the work piece is completed, the work piece attachment jig attached to the chuck is operated so as to be stored in the automatic electrode / work piece exchange means, and the storage rack for the automatic electrode / work piece exchange means. Is operated to rotate to the next step.

Therefore, the storage means mounted on the workpiece mounting jig stores the data regarding the positioning of the workpiece, the data regarding the electric discharge machining, and the data regarding the electrodes to be used as one integrated data. ,
A large number of workpieces and electrodes can be automatically replaced, and the program creation from the positioning measurement step of the workpiece to the electrode misalignment measurement step to the electrical discharge machining can be further facilitated and automatic operation can be performed. Furthermore, since data is recorded for each workpiece, there is an effect that it is easy to manage. In addition, since only the workpiece is stored in the storage means, the number of stored operations is smaller than that in the first embodiment.

<Third Embodiment> FIG. 8 is an overall configuration diagram showing an electric discharge machine in an electric discharge machine and an electric discharge machine method according to a third embodiment of the present invention. In this embodiment, the same reference numerals and symbols are given to those having the same configurations or corresponding portions as those of the first and second embodiments described above, and detailed description thereof will be omitted. Numeral 135 outputs an appropriate command to the numerical controller 10 when the electrode mounting jig 134 and the workpiece mounting jig 132 are not stored in the automatic electrode / workpiece exchanging means 130 in response to the command from the numerical controller 10. It is a check means to do.

The procedure of the automatic operation method of the electric discharge machining apparatus according to the third embodiment of the present invention is based on the flowchart of FIG. 9 and is a main part process diagram showing the electric discharge machining process of FIG. And explain. Since the data setting means 131 sets data, records it in the memory tag 100, and stores it in the magazine rack 18 of the automatic electrode / workpiece exchanging means 130, the operation is almost the same as in the second embodiment. The description is omitted.

In FIG. 9, steps S1 to S
The operation up to 11 is almost the same as that of the flowchart of FIG. 7 of the second embodiment, and therefore the description is omitted here. Also,
The step different from the flowchart of FIG. 7 of the second embodiment is that step S22 is different. When the numerical controller 10 commands the storage number in which the necessary processing electrodes are stored, the magazine rack 18 is driven by the drive unit 122 to the electrode storage number position and stopped. Check means 1 here
Reference numeral 35 determines whether or not the electrode mounting jig 134 is housed at the electrode housing number position. If not stored, a command is output to the numerical controller 10 to skip the steps S13 to S15 and move the process to step S16. If the electrodes are stored, the arm 17 outputs a command to the numerical controller 10 to replace the electrodes. While the electrode mounting jig 134 is being replaced with the main shaft 15 of the electric discharge machine by the arm 17, the reading means 12 is used.
3 reads the data stored in the memory tag 100 of the electrode mounting jig 134, and transfers the electrode misalignment data in the form of a variable to the numerical controller 10. This data is stored in a predetermined memory area of the numerical controller 10 (processing data call 140 in FIG. 4). After that, the numerical controller 10 commands the servomotors 9a, 9b, 9c to move the electrode mounting jig 132 to the main shaft 15, moves the moving table 14 to the main shaft 15 and clamps it, and then moves to the process of step S13. (Step S2
2). The operations in steps S13 to S16 described above are almost the same as those in the flowchart of FIG. 7 of the second embodiment, and therefore the description thereof is omitted here.

As described above, according to the electric discharge machining apparatus and the electric discharge machining method of the third embodiment of the present invention, a plurality of workpieces 2 are exchanged and positioned, and a plurality of machining electrodes 1 are exchanged and positioned to produce a workpiece. 2 for automatically performing electric discharge machining using the machining electrode 1, and positioning the workpiece 2 in the storage means including the memory tag 100 attached to the workpiece attachment jig 132 using the data setting means 131. Data setting step for setting various data regarding the machining electrode 1, various data regarding the machining electrode 1 and various data regarding the electric discharge machining as one unit and storing them in the automatic electrode / workpiece exchanging means 130, and automatic electrode / workpiece exchanging. The workpiece mounting jig 132 is replaced while the workpiece mounting jig 132 is being exchanged from the means 130.
A data reading step of reading various data relating to the machining electrode 1 and the workpiece 2 stored in the storage means attached to the workpiece, and the workpiece mounting jig 132 is housed in the automatic electrode / workpiece exchanging means 130. Checking whether or not it is stored, the process is transferred to the data reading process when it is stored, and when it is not stored, the storage rack including the magazine rack 18 is moved to the next step to check whether it is stored or not. , A data transfer step of transferring the read various data regarding the machining electrode 1 and the workpiece 2 to the numerical controller 10 as electrode misalignment data, workpiece positioning data and electric discharge machining data, and automatic electrode / workpiece exchanging means. From 130, the workpiece mounting jig 132 is automatically replaced with the chuck 133 installed at a predetermined position on the moving table 14, A reference measuring element 90 when not performing a positioning operation of the object 2 to replace the spindle 15 the workpiece 2
Workpiece positioning step for positioning and machining electrode 1
When exchanging, machining electrode 1 is automatic electrode / workpiece exchanging means 1
When not housed in 30, the command output step of outputting the command for canceling the misalignment measurement for measuring the reference position of the machining electrode 1 and the electric discharge machining to the numerical control device 10 and the machining electrode 1 are replaced, and the machining electrode is replaced. 1. Electrode machining immediately after the electrode measurement step of measuring the misalignment amount for measuring the reference position of the machining electrode 1 when the positioning operation for measuring the reference position of No. 1 and the electrode measurement step of measuring the misalignment amount are performed. And a workpiece storing step of storing the workpiece 2 mounted on the workpiece mounting jig 132 in the automatic electrode / workpiece exchanging means 130 when the processing of the workpiece 2 mounted on the workpiece mounting jig 132 is completed.
Based on the data setting step, the data reading step to the workpiece storing step are sequentially performed, and the data setting step to the workpiece storing step are sequentially repeated.

Therefore, first, the workpiece positioning data, the electric discharge machining data, and the electrode misalignment data are set in the storage means attached to the workpiece attaching jig by using the data setting means, and the automatic electrode / workpiece exchanging means is set. It is stored. By activating the numerical control device or activating the automatic electrode / workpiece exchanging means, the automatic electrode / workpiece exchanging means determines whether or not the workpiece mounting jig is housed, and only when it is housed. While replacing the workpiece attachment jig, the contents of the storage means attached to the workpiece attachment jig are read and the workpiece positioning data, electrical discharge machining data, and electrode misalignment data are transferred to the numerical controller and moved. It is operated so as to be attached to a chuck installed at a predetermined position on the table. The reference probe is exchanged with the spindle, and the workpiece positioning data is read from the workpiece positioning data to set the coordinate position. Next, the operation of exchanging the machining electrode is performed according to the command of the necessary machining electrode number from the numerical control device.
If it is not stored in the workpiece exchange means, a command to cancel the core displacement measurement and the electric discharge machining that measures the reference position of the machining electrode is output to the numerical control device. A misalignment amount is measured by measuring the reference position of the machining electrode based on the read electrode misalignment data attached to the spindle. The above-mentioned operation is repeated until the read electric discharge machining data is subjected to electric discharge machining to a desired machining position, surface roughness, and dimensions, and all the read electric discharge machining data are used. When all the machining of the work piece is completed, the work piece attachment jig attached to the chuck is operated so as to be stored in the automatic electrode / work piece exchange means, and the storage rack for the automatic electrode / work piece exchange means. Is operated to rotate to the next step.

Therefore, when a command is issued to replace the required electrode by the numerical control device, the machining electrode is used even if the machining electrode is not accommodated at the predetermined accommodation position of the automatic electrode / workpiece exchanging means. Since the command to replace the machining electrode required for the next machining is omitted by omitting the electrode misalignment measurement and the electrical discharge machining operation that are performed, the program does not stop and machining regarding the machining electrode that is not stored is not performed. It is possible to automatically replace a large number of workpieces and electrodes, and to automatically perform electrical discharge machining through the positioning measurement step of the workpiece and the electrode core misalignment measurement step.

<Fourth Embodiment> FIG. 10 is a view showing an example of the data input format of the data setting means 131 in the electric discharge machining apparatus and the electric discharge machining method according to the fourth embodiment of the present invention.
It is intended to simplify the data input regarding the positioning of the workpiece 2, the data regarding the misalignment correction measurement of the machining electrode 1, and the data input regarding the electrical discharge machining described in the second embodiment. The data input section of the man-machine interface shown in FIG. 10 includes a positioning section for positioning the workpiece 2, an electrode centering section for performing misalignment correction measurement of the machining electrode 1 and machining for performing electrical discharge machining. It is divided into three parts.

The positioning section will be described with reference to FIGS. 10 and 11. First, decide what kind of positioning to perform, and enter the following numerical values in the measurement pattern part. The following measurement patterns are prepared.・ 201 ・ ・ ・ Corner positioning (corner positioning) ・ 202 ・ ・ ・ Column center positioning (center positioning) ・ 203 ・ ・ ・ Hole center positioning (center positioning) The position of the workpiece 2 to be brought into contact with is input to the end face measurement position portion. The positioning start position is at the four corners of the workpiece mounting jig 132 as shown in FIG.
1, A2, A3, A4 and A5 which is the central portion, and their positions are stored in advance. Z end face measurement at the end face measurement position (upper face end face measurement), X end face measurement (X direction end face measurement), and Y
X and Y for edge measurement (Y direction edge measurement)
Kyori and Z-kyori have different meanings depending on the combination of the measurement pattern and the positioning start position described above. Here, a case will be described in which the measurement pattern 201 and the positioning start position A5 are input in combination. When you want to measure the end face at C1 on the upper surface, you want to measure the end face at the X distance of Z from the positioning start position A5 to the X distance of Z, the Y distance of Z from the positioning start position A5 to the Y distance of 16 and from C2 and C3. In case of X, the positioning start position A
5 to the side surface measurement position, the X distance 162, the Z distance from the work piece upper surface 166 to the X Z distance, and the Y Y distance from the positioning start position A5 to the side measurement position Y distance 163 and the Z distance. Is the Z distance 164 from the top surface of the workpiece
Enter. The plate thickness 165 of the workpiece is input to the plate thickness portion. In the coordinate system, the position to be used as a reference after the positioning measurement is completed and the number of the coordinate system to be set are input. The positioning speed is a part for inputting the positioning speed when the end face is actually positioned. FIG. 10 shows an input example in the case where the column center is positioned from the substantially center of the workpiece, the center position is obtained, and the coordinate system in which the obtained position is zero is set as W01.

There are places where parameters such as the radius (or diameter) of the reference probe 90, the radius (or diameter) of the measuring probe 96, the approach distance, etc. are input to the numerical controller 10. The numerical control device 10 calculates and gives an instruction in consideration of the input numerical value.

The electrode centering portion will be described with reference to FIGS. 10 and 12. When setting the data, the storage number to be stored is determined, and a numerical value is input in the T number section. Also, decide what kind of positioning to perform,
Enter the following numerical values in the measurement pattern section. The following measurement patterns are prepared.・ 41 ・ ・ ・ Corner positioning (corner positioning) ・ 11 ・ ・ ・ Column center positioning (center positioning) ・ 31 ・ ・ ・ Hole center positioning (center positioning) The positioning start position is the measurement probe 9 as shown in FIG.
It is B1 which is the end position of the pillar center positioning with 6, and is stored in advance. The X edge, Y edge, and Z edge for performing Z edge surface measurement (upper edge surface measurement), X edge surface measurement (X direction edge surface measurement), and Y edge surface measurement (Y direction edge surface measurement) at the edge surface measurement position are the measurement patterns described above. Depending on the meaning. Here, the case of inputting with the measurement pattern 11 will be described. If you want to measure the end face with D1 on the bottom of the electrode, the X from Z is X from the positioning start position B1.
If you want to measure the end face at Y distance 171, the Y distance from the positioning start position B1 for the Z distance, and D2 and D3, the X distance 172, X from the positioning start position B1 to the side surface measurement position for the X distance at X. Enter the Z distance 176 from the top surface of the work piece in Z, the Y distance 173 from the positioning start position B1 to the side surface measurement position in Y Y, and the Z distance 174 from the top surface in the work area. To do.
In the electrode length portion, 175, which is the length from the end surface where the electrode mounting jig 134 and the main shaft 15 are in contact to the electrode bottom surface, is input. The positioning speed is a part for inputting the positioning speed when the end face is actually positioned. In FIG. 10, electrode misalignment correction is performed by performing column center positioning from the center of the electrode mounting jig 134 (may be referred to as almost the center of the electrode when the machining electrode 1 is mounted almost at the center of the electrode mounting jig 134). An input example for measurement is shown.

The actual operation of electrode core misalignment correction measurement is performed by inputting the radius (or diameter) of the reference probe 90 or the radius (or diameter) of the measuring probe 96 input to the numerical controller 10.
It is performed by taking into consideration the numerical values of the parameters such as the approach distance and the approach distance, and issuing an instruction.

The processing section will be described. Here, the condition number and electrode number (storage number) corresponding to the processing position and the processing depth can be input and set. The relation between the condition number and the electrode number is that if any numerical value is input from the rough machining electrode number to the finishing 2 machining electrode number, the electrical condition corresponding to the machining content and the bottom direction left margin and the side direction margin are selected. A search is made in the numerical controller 10. In FIG. 10, using the condition number 06, rough machining is performed at the machining pitch X00.00Y00.00 with the machining depth of 5.0 mm and the electrode of the storage number 21, machining pitch X00.
An input example is shown at 00Y00.00 when the medium depth machining is performed with the electrode having the storage number 22 at the machining depth of 6.0 mm. The number of processing pitches for the workpiece 2 can be set up to 12. It goes without saying that the number of processing pitches can be changed by changing the configurations of the basic program stored in the data setting means 131 and the numerical control device 10.

Further, as another data input format example of the data setting means 131, there is one as shown in FIG. FIG. 13 is a data input diagram in the case where the data regarding the positioning of the workpiece 2, the data regarding the misalignment correction measurement of the machining electrode 1, and the data regarding the electric discharge machining are all input by variables.

Next, an example of the data input format of the data setting means 131 when the electric discharge machining apparatus described in the first embodiment is used will be described. FIG. 14 is a diagram showing an input format example of data relating to misalignment measurement of the machining electrode 1, and FIG. 15 is a diagram showing an input format example of data relating to positioning of the workpiece 2 and electric discharge machining. 14 and 15
Since the detailed description in (1) is almost the same as that described in the second embodiment, the description thereof will be omitted here.

Other examples of data input formats of the data setting means 131 include those shown in FIGS. 16 and 17. FIG. 16 shows a case where all the data relating to the misalignment correction measurement of the machining electrode 1 are input by variables, and FIG. 17 shows a case where all the data relating to the positioning of the workpiece 2 and the data concerning electric discharge machining are inputted by the variables. It is a data input diagram.

As described above, the fourth embodiment of the present invention is the data setting means 13 in the electric discharge machining apparatus and the electric discharge machining method described in the first embodiment, the second embodiment or the third embodiment.
The data setting step of setting various data relating to positioning of the workpiece 2, various data relating to the machining electrode 1 and various data relating to electric discharge machining in the storage means comprising the memory tag 100 using As various data regarding the X dimension, Y dimension and Z dimension from one reference position among a plurality of set positions on the workpiece mounting jig 132 to the measurement position on the side surface of the workpiece 2 and the measurement position on the upper surface. Set the X dimension, Y dimension, plate thickness and positioning method of
The electrode mounting jig 134 is used as various data regarding the machining electrode 1.
X dimension, Y from the center of the workpiece to the measurement position on the side of the machining electrode 1
Dimension and Z dimension, X dimension and Y dimension up to the measurement position on the bottom surface, and the positioning method are set, and the machining position data and machining electrode number from the reference position set by the positioning of the workpiece 2 as various data related to the electric discharge machining. The processing condition column number or the processing condition number is set.

Therefore, in addition to the operation of the first embodiment, the second embodiment, or the third embodiment, the data necessary for positioning the workpiece is a plurality of data set on the workpiece mounting jig. From the reference position to the measurement position on the side surface of the work piece from the reference position, and the X dimension and Y size to the measurement position on the upper surface, the plate thickness, and the positioning method. The data necessary to perform the correction measurement are the X dimension, Y dimension and Z dimension from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode and the X dimension and Y dimension to the measurement position on the bottom surface and the positioning method. The data required for electrical discharge machining is stored in the items by numerically inputting the machining position data from the reference position set by workpiece positioning, machining electrode number, machining condition column number or machining condition number item. Let Over data that is, processing Puraguramu is created.

Therefore, in addition to the effect of the first embodiment or the second embodiment or the third embodiment, the data to be recorded in the storage means, that is, the workpiece positioning data and the electrode misalignment by the data setting means. The measurement data and the processing data are only input numerically through the man-machine interface in an interactive format, which simplifies data input, greatly shortens the time required to create a program, and reduces the storage capacity to be stored in the storage means. .

<Fifth Embodiment> Next, the procedure of the automatic operation method of the electric discharge machining apparatus according to the fifth embodiment of the present invention will be described with reference to the flowchart of FIG. It will be described with reference to FIGS. Since the data setting means 131 sets data, records it in the memory tag 100, and stores it in the magazine rack 18 of the automatic electrode / workpiece exchanging means 130, the operation is almost the same as in the second embodiment. The description is omitted.

In FIG. 18, steps S1 to S11 perform almost the same operation as in the flowchart of FIG. 7 of the second embodiment, and therefore the description thereof is omitted here. Further, a step different from the flowchart of FIG. 7 of the second embodiment is that step S23 is different. When the workpieces 2 having the same machining content are exchanged for electrical discharge machining, it is necessary to perform electrical discharge machining with the electrode once used. According to the first embodiment, the second embodiment and the third embodiment described above, the electrode misalignment is measured every time the electrode is replaced. When the electrode core displacement measurement is performed, the reference position of the electrode may be displaced, so that many workpieces 2 and machining electrodes 1 are automatically replaced, After the electrode misalignment measurement process, the electrical discharge machining cannot be automatically operated with high accuracy.

When the numerical controller 10 issues a storage number in which the necessary processing electrode 1 is stored, the magazine rack 1
8 is driven to the electrode storage number position by the drive unit 122 and stopped. During the process of exchanging the electrode mounting jig 134 with the spindle 15 of the electric discharge machine by the arm 17, the reading means 123 reads the data stored in the memory tag 100 of the electrode mounting jig 134 and the signal indicating whether or not the misalignment has been measured. The electrode misalignment data and the signal indicating whether or not the misalignment has been measured are transferred to the numerical controller 10 in a variable format. When the reading means 123 reads the data of the memory tag 100 of the electrode mounting jig 134, if the misalignment is not measured, the misalignment measured signal is recorded in the memory tag 100. This data is stored in a predetermined memory area of the numerical controller 10 (processing data call 140 in FIG. 4). After that, the numerical controller 10 commands the servomotors 9a, 9b, 9c to move the electrode mounting jig 132 to the main shaft 15, and moves the moving table 14 to the main shaft 15 for clamping.

If there is no signal that the center misalignment has been measured, after the machining electrode is replaced, the set position on the measurement probe 96,
That is, the tip of the electrode for roughing is moved so as to be located at the point B1 in FIG. 5, electrode misalignment is measured, the electrode reference position is obtained, the electrode misalignment amount is obtained, and the numerical controller 10 is operated.
To store. Further, if there is a signal of which the misalignment has been measured, the steps S13 and S14 are omitted,
As described above, the electrode replacement is performed using the misalignment amount obtained in the first step, and the electric discharge machining is performed without performing misalignment measurement (step S23). The operations from step S14 to step S16 are almost the same as those in the flowchart of FIG. 7 of the second embodiment, so the description thereof is omitted here.

As described above, the fifth embodiment of the present invention stores in the storage means including the memory tag 100 in the electric discharge machining apparatus and the electric discharge machining method described in the first embodiment, the second embodiment or the third embodiment. In the data reading step of reading various data relating to the processed electrode 1 that has been recorded, when the stored various data is read, a signal of being used is recorded, and when the signal of being used is read, numerical values are obtained as electrode misalignment data. A data transfer step of transferring to the control device 10,
Numerical control device 10 issues a command to cancel the electrode measurement process for measuring the misalignment amount for measuring the reference position of machining electrode 1.
Is output to.

Therefore, in addition to the operation of the first embodiment, the second embodiment, or the third embodiment, it is mounted on the electrode mounting jig while the electrode mounting jig is being replaced by the automatic electrode / workpiece replacement means. When reading the contents of the storage means, the electrode misalignment data is transferred to the numerical control device, and the signal of being used is recorded. When the signal of "used" is read when reading the contents of the storage means, the transfer of the electrode misalignment data to the numerical control device and the misalignment amount measurement for measuring the reference position of the machining electrode are canceled. The command is operated to output to the numerical controller.

Therefore, in addition to the effects of the first embodiment, the second embodiment, or the third embodiment, a workpiece having the same machining content is automatically replaced and the electrode used once is subjected to electric discharge machining. Even in the automatic operation, if the electrode misalignment is not measured before the electric discharge machining for the electrode to be used, the electrode misalignment is measured.If the electrode misalignment is measured, do not perform the electrode misalignment measurement. Therefore, a large number of workpieces and electrodes can be automatically exchanged while maintaining high accuracy, and automatic operation of electrical discharge machining can be performed through the positioning measurement step of the workpiece and the electrode misalignment measurement step. Further, once the electrode misalignment measurement is performed, the electrode misalignment measurement is not performed before the electric discharge machining, so that the time required for that can be shortened and the efficiency is improved.

<Sixth Embodiment> Next, the procedure of the automatic operation method of the electric discharge machining apparatus according to the sixth embodiment of the present invention will be described with reference to the flowchart of FIG. This will be described with reference to FIGS. 4 and 5 and the overall configuration diagram of the electric discharge machine shown in FIG. Since the data setting means 131 sets data, records it in the memory tag 100, and stores it in the magazine rack 18 of the automatic electrode / workpiece exchanging means 130, the operation is almost the same as in the second embodiment. The description is omitted.

In FIG. 19, steps S1 to S6 and step S21 operate in substantially the same way as the flowchart of FIG. 7 of the second embodiment, and therefore their explanation is omitted here. Further, a step different from the flowchart of FIG. 7 of the second embodiment is that step S24 is different. According to the above-mentioned first embodiment, second embodiment and third embodiment, in the case where the already processed workpiece 2 is exchanged and the additional processing with the precision driving is performed, the workpiece is not replaced every time the workpiece is replaced. Since the workpiece positioning measurement is performed, the machining liquid 4 and sludge generated by the machining adhere to the workpiece 2, and the workpiece positioning reference is used as the workpiece reference. Since the positions may shift, a large number of workpieces 2 and machining electrodes 1 are automatically exchanged, and electrical discharge machining cannot be automatically operated with high accuracy through a positioning measurement step of the workpiece 2 and an electrode core deviation measurement step. Become.

The judging means 120 instructs the numerical controller 10 to enter the storage part number, and the arm 17 is driven based on the information. During the process of exchanging the workpiece mounting jig 132 with the chuck 133 mounted on the table of the electric discharge machine by the arm 17, the reading means 123 is the workpiece stored in the memory tag 100 of the workpiece mounting jig 132. The positioning and electrical discharge machining data and the signal indicating whether the positioning measurement has been completed are read, and the workpiece positioning and electrical discharge machining data and the signal indicating whether the positioning measurement has been completed are transferred to the numerical control device 10. When the reading means 123 reads the data of the memory tag 100 of the workpiece mounting jig 132, if the positioning measurement is not completed, the signal of the positioning measurement is recorded in the memory tag 100. This data is stored in a predetermined memory area of the numerical controller 10 (processing data call 140 in FIG. 4). afterwards,
The numerical controller 10 commands the servomotors 9a, 9b, 9c to move the workpiece mounting jig 132 to the chuck 133, moves the moving table 14 to the chuck 133 and clamps it, and omits steps S7 to S10. ,
Then, the process proceeds to step S11. If there is no signal for which positioning measurement has been completed, the workpiece mounting jig 132 is replaced, and then the process proceeds to step S7 (step S23). Since the operation from step S7 to step S16 is almost the same as the flowchart of FIG. 7 of the second embodiment,
The description is omitted here.

As described above, the sixth embodiment of the present invention is stored in the storage means including the memory tag 100 in the electric discharge machining apparatus and the electric discharge machining method described in the first embodiment, the second embodiment, or the third embodiment. When the data reading step of reading various data relating to the workpiece 2 and the electric discharge machining that have been performed records a signal of being used when reading the stored data, and when the signal of being used is read, the workpiece is processed. A command for canceling the data transfer step of transferring the object positioning data to the numerical controller 10 and the workpiece positioning step of positioning the workpiece 2 is output to the numerical controller 10.

Therefore, in addition to the operation of the first embodiment or the second embodiment or the third embodiment, the automatic electrode / workpiece exchanging means attaches to the attachment jig during the exchange of the workpiece attachment jig. When reading the contents of the stored storage means, the workpiece positioning data and the electric discharge machining data are transferred to the numerical control device, and the signal of being used is recorded. When a signal of "used" is read when reading the contents of the storage means, a command for canceling the transfer of the workpiece positioning data to the numerical controller and the positioning of the workpiece is issued by the numerical controller. Is operated to output to.

Therefore, in addition to the effects of the first embodiment or the second embodiment or the third embodiment, the automatic operation for further performing the additional machining such as the precision driving on the workpiece to which the electric discharge machining is applied is further performed. Also, since the positioning measurement is performed if the positioning measurement is not performed on the workpiece and the positioning measurement is not performed if the positioning measurement is performed, a large number of workpieces are maintained with high accuracy. The workpiece and the electrode can be automatically exchanged, and the electric discharge machining can be automatically operated through the positioning measurement process of the workpiece and the electrode misalignment measurement process. Further, once the workpiece positioning is performed, the workpiece positioning measurement is not performed after the workpiece replacement, so that the time required for this can be shortened and the efficiency is improved.

<Seventh Embodiment> Next, the procedure of the automatic operation method of the electric discharge machining apparatus according to the seventh embodiment of the present invention will be described with reference to the flow chart of FIG. It will be described with reference to FIGS. 4 and 5 showing the overall configuration of the electric discharge machine shown in FIG. Data setting means 131
Data is set by and is recorded in the memory tag 100 and automatically
Since the operation of storing the workpiece exchange means 130 in the magazine rack 18 is almost the same as that of the third embodiment, its explanation is omitted here.

In FIG. 20, steps S1 to S11 perform almost the same operation as the flowchart of FIG. 9 of the third embodiment, and therefore the description thereof is omitted here. Further, steps different from the flowchart of FIG. 18 of the fifth embodiment are that step S25 is different and step S26 is added. When the numerical controller 10 commands the storage number in which the necessary processing electrodes are stored, the magazine rack 18 is driven by the drive unit 122 to the electrode storage number position and stopped. Here, the checking means 135 determines whether or not the electrode mounting jig 134 is housed at the electrode housing number position. If not stored, a command to suspend the numerical controller 10 and the CR of the numerical controller 10
A command to display the data input section as shown in FIG. 21 on the T screen is output to the numerical controller 10.

The input section displayed on the CRT screen will be described with reference to FIGS. 21 and 12. When setting the data, decide what kind of positioning to perform, and enter the following numerical values in the measurement pattern part. The following measurement patterns are prepared.・ 41 ・ ・ ・ Corner positioning (corner positioning) ・ 11 ・ ・ ・ Column center positioning (center positioning) ・ 31 ・ ・ ・ Hole center positioning (center positioning) The positioning start position is the measurement probe 9 as shown in FIG.
It is B1 which is the end position of the pillar center positioning with 6, and is stored in advance. The X pattern, the Y pattern, and the Z pattern for performing the Z edge measurement (top edge measurement), X edge measurement (X direction edge measurement), and Y edge measurement (Y direction edge measurement) at the edge measurement position are the measurement patterns described above. Depending on the meaning. Here, the case of inputting with the measurement pattern 11 will be described. When it is desired to measure the end face at D1 on the bottom surface of the electrode, the X distance of Z is 170 from the positioning start position B1, and the Y distance of Z is the positioning start position B1.
If you want to measure the end face with Y distance 171, D2 and D3, the X distance of X is 172 from the positioning start position B1 to the side measurement position, and the Z distance of X is from the top surface of the workpiece. 176, Y distance 173 from the positioning start position B1 to the side surface measurement position is input to the Y distance, and Z distance 174 from the upper surface of the workpiece is input to the Z distance.
In the electrode length portion, 175, which is the length from the end surface where the electrode mounting jig 134 and the main shaft 15 are in contact to the electrode bottom surface, is input. The positioning speed is a part for inputting the positioning speed when the end face is actually positioned.

In FIG. 21, the column center is positioned from the center of the electrode mounting jig 134 (may be referred to as the center of the electrode when the machining electrode 1 is mounted almost at the center of the electrode mounting jig 134). An input example in the case of performing electrode displacement correction measurement is shown. All data is input to these input parts, the machining electrode 1 is attached to the electrode attachment jig 134, and the electrode attachment jig 134 is accommodated in each corresponding accommodation position of the magazine rack 18 of the automatic electrode / workpiece exchanging means 130. Then, when the numerical controller 10 is pressed to start and restart it, the process is shifted to the beginning of the step S25. Also, if stored, the arm 17
Then, a command is output to the numerical controller 10 to replace the machining electrode 1. The arm 17 allows the electrode mounting jig 134
During the process of exchanging the main shaft 15 of the electric discharge machine, the reading means 1
23 reads the data stored in the memory tag 100 of the electrode mounting jig 134, and transfers the electrode misalignment data in a variable format to the numerical controller 10. This data is stored in a predetermined memory area of the numerical controller 10 (processing data call 140 in FIG. 12). After that, the numerical controller 10 commands the servomotors 9a, 9b, 9c to move the electrode mounting jig 134 to the main shaft 15, moves the moving table 14 to the main shaft 15 and clamps it, and then moves to step S13. (Step S
25). The operations of steps S13 to S16 described above are almost the same as those of the flowchart of FIG. 7 of the second embodiment and the flowchart of FIG. 9 of the third embodiment, and therefore the description thereof is omitted here.

In addition, the electrode mounting jig 1 using the arm 17
If there is no data when the reading means 123 reads the data stored in the memory tag 100 of the electrode mounting jig 134 while replacing 34 with the spindle 15 of the electric discharge machine, the numerical control device 10 is operated. Transfer the signal that there is no data. After that, it goes without saying that the operation as described in the above-mentioned embodiment is performed.

As described above, the seventh embodiment of the present invention is the numerical control when the machining electrode 1 is not housed when the machining electrode 1 is replaced in the electric discharge machining apparatus and the electric discharge machining method described in the third embodiment. The command output step of commanding the device 10 comprises:
The operation of the numerical control device 10 is temporarily stopped, and the X dimension, Y dimension from the center of the electrode mounting jig 134 to the measurement position on the side surface of the machining electrode 1 as the machining electrode number and various data relating to the machining electrode 1 are displayed on the monitor screen. An input unit for setting various data such as the Z dimension and the X dimension up to the measurement position on the bottom surface and the Y dimension and positioning is displayed, and the various data are set and input and the machining electrode 1 is automatically electrode / workpiece exchanging means 130.
When the electrode attachment jig 134 to which the machining electrode 1 is attached is housed, the numerical controller 10 starts to operate again.

Therefore, in addition to the operation of the third embodiment,
When the numerical control device commands the automatic electrode / workpiece exchanging means the machining electrode number for exchanging the machining electrode, if the machining electrode number does not contain the electrode mounting jig, the operation of the numerical controller On the monitor screen as the machining electrode number and various data relating to the machining electrode, from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode from the X dimension, Y dimension and Z dimension to the measurement position on the bottom surface. The input section for setting various data such as the X and Y dimensions and the positioning method is displayed. After the necessary data is input according to the displayed data setting, the setting is completed, and the necessary machining electrodes are attached to the electrode mounting jig. Since the machining electrode number of the automatic electrode / workpiece replacement means is stored in the machine, it is determined that the automatic electrode / workpiece replacement means is housed in the electrode mounting jig, and the numerical control device is again installed. Operation of is started.

Therefore, in addition to the effects of the third embodiment,
When a command is issued to automatically replace a large number of workpieces and electrodes, and to perform the electrical discharge machining through the positioning measurement process of the workpieces and the electrode misalignment measurement process to perform electrical discharge machining, the numerical control device replaces the required electrodes. When the electrode is not stored in the predetermined storage position of the automatic electrode / workpiece exchanging means, the input part of the data related to the electrode misalignment measurement is displayed on the CRT screen of the numerical controller. By inputting the data and storing the electrode mounting jig at a predetermined position of the automatic electrode / workpiece exchanging means of the electrode mounting jig, the program can be continuously executed. Even if there is a forgotten storage, automatic operation can be continued. In addition, the program can be automatically modified so that it does not have to be started from the beginning by revising the program for re-automatic operation.

[0092]

As described above, according to the electric discharge machining apparatus and the electric discharge machining method of the first or second aspect, the data regarding the positioning of the workpiece and the data regarding the electric discharge machining are attached to the workpiece mounting jig. The data regarding the machining electrode is stored in the storage means attached to the storage means mounted in the storage means attached to the electrode mounting jig. Since the operation is stored in the numerical controller, a large number of workpieces and machining electrodes are automatically exchanged, and a program can be created from the positioning measurement process of the workpiece to the electrode misalignment measurement process to electrical discharge machining. There is an effect that it is easy and automatic operation is possible. Further, since the electrode core misalignment correction measurement process is performed on the electric discharge machine, it is not necessary for the operator to carry out setup operations such as electrode core misalignment correction measurement and positioning of the work piece. The effect of being able to correct the heat transition of is, and being able to perform electric discharge machining with high accuracy. In addition, if the workpiece and the machining electrode can be manufactured, the machining program can be started simply by storing the jig for mounting it in the automatic electrode / workpiece exchanging means, and the electric discharge machining can be efficiently started and the electric discharge machining can be started. Even in the middle, it is possible to easily create a machining program for another workpiece. In particular, when performing additional machining such as precision driving on a workpiece that has been electro-discharge machined, data regarding the workpiece positioning and data regarding the electrode misalignment correction measurement can be left as data.
There is also an effect that the machining program can be easily modified and created.

According to the electric discharge machining apparatus and the electric discharge machining method of the third or fourth aspect, the data relating to the positioning of the workpiece and the data relating to the electric discharge are used in the storage means mounted on the workpiece mounting jig. Since the data related to the machining electrodes are stored as one set of data, many workpieces and machining electrodes are automatically exchanged,
There is an effect that the program creation from the positioning measurement process of the workpiece to the electrode core deviation measurement process to the electric discharge machining can be further facilitated and the automatic operation can be performed. Furthermore,
Since data is recorded for each workpiece, there is an effect that it is easy to manage. Further, the number of operations stored in the storage means is limited to that of the workpiece, compared with the first aspect.

According to the electric discharge machining apparatus and the electric discharge machining method of the fifth or sixth aspect, when the numerical control device gives an instruction to replace the necessary machining electrode, a predetermined value of the automatic electrode / workpiece exchanging means is determined. Even if the machining electrode is not stored in the storage position, the command to replace the machining electrode necessary for the next machining is omitted by omitting the electrode misalignment measurement and the electric discharge machining operation performed using the machining electrode. Since there is no program stop, a large number of workpieces and machining electrodes are automatically replaced without machining the machining electrodes that are not housed, and electric discharge machining is performed from the workpiece positioning measurement process to the electrode misalignment measurement process. There is an effect that the automatic driving can be performed.

According to the electric discharge machining apparatus and the electric discharge machining method of the seventh or eighth aspect, in addition to the effect of any one of the first to sixth aspects, data to be recorded in the storage means, that is, By using the data setting means, the workpiece positioning data, the electrode misalignment measurement data, and the machining data can be entered in the man-machine interface only as numerical values in an interactive format, which simplifies the data input and greatly reduces the time required to create a program. This has the effect of shortening the storage capacity and reducing the storage capacity stored in the storage means.

According to the electric discharge machining apparatus and the electric discharge machining method of the ninth or tenth aspect, in addition to the effect of any one of the first to sixth aspects, a workpiece having the same machining content is further processed. Even in automatic operation such as automatic replacement and electrical discharge machining with a machining electrode that has been used once, electrode core misalignment measurement is performed on the machining electrode to be used unless the electrode core misalignment is measured before electrical discharge machining. Since the electrode core misalignment measurement is not performed if misalignment measurement is performed, a large number of workpieces and machining electrodes are automatically exchanged while maintaining high accuracy, and the positioning measurement process of the workpiece is performed. There is an effect that the electric discharge machining can be automatically operated through the electrode misalignment measuring step. Further, once the electrode misalignment measurement is performed, the electrode misalignment measurement is not performed before the electric discharge machining, so that the time required for that can be shortened and the efficiency is improved.

According to the electric discharge machining apparatus and the electric discharge machining method of the eleventh or twelfth aspect, in addition to the effect of any one of the first to sixth aspects, an electric discharge machined workpiece is further added. On the other hand, even in automatic operation such as performing additional machining such as precision driving, do not perform positioning measurement if positioning measurement is not performed on the workpiece, and do not perform positioning measurement if positioning measurement is performed. Since a large number of workpieces and machining electrodes are automatically exchanged while maintaining high accuracy, the electrical discharge machining can be automatically operated through the workpiece positioning measurement process and the electrode misalignment measurement process. There is. Further, once the workpiece positioning is performed, the workpiece positioning measurement is not performed after the workpiece replacement, so that the time required for this can be shortened and the efficiency is improved.

According to the electric discharge machining apparatus and the electric discharge machining method of claim 13 or 14, claim 5 or 6
In addition to the effect of the above, in addition, a number of workpieces and machining electrodes are automatically exchanged, and it is necessary by the numerical control device in the automatic operation to perform electrical discharge machining after the workpiece positioning measurement process to the electrode misalignment measurement process. When the machining electrode is instructed to be replaced, if the machining electrode is not stored in the predetermined storage position of the automatic electrode / workpiece exchange means, the CR of the numerical controller is used.
The data input section for electrode misalignment measurement is displayed on the T screen, and the data input and the electrode mounting jig are set at predetermined positions of the automatic electrode / workpiece exchanging means of the electrode mounting jig. Since the program is continuously executed by storing the machining electrode, even if the necessary machining electrode is forgotten to be stored, the automatic operation can be continuously performed. In addition, there is an effect that it is possible to perform an automatic operation such that the program need not be restarted from the beginning by additionally modifying the program for the automatic operation again.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an electric discharge machine in an electric discharge machine and an electric discharge machine method according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a procedure of an automatic operation method of an electric discharge machine according to the first embodiment of the present invention.

FIG. 3 is a main part process chart showing a process of electric discharge machining of the electric discharge machine according to the first embodiment of the present invention.

FIG. 4 is a block diagram showing the flow of a basic program for positioning of a workpiece, electrode replacement, electrode core misalignment correction measurement, and electric discharge machining.

FIG. 5 is a diagram showing a workpiece positioning and an electrode core misalignment correction measurement start position.

FIG. 6 is an overall configuration diagram showing an electric discharge machine in an electric discharge machine and an electric discharge machine method according to a second embodiment of the present invention.

FIG. 7 is a flowchart showing a procedure of an automatic operation method for an electric discharge machine according to a second embodiment of the present invention.

FIG. 8 is an overall configuration diagram showing an electric discharge machine in an electric discharge machine and an electric discharge machine method according to a third embodiment of the present invention.

FIG. 9 is a flowchart showing a procedure of an automatic operation method for an electric discharge machine according to a third embodiment of the present invention.

FIG. 10 is a diagram showing an example of a data input format of a data setting means of an electric discharge machine according to a fourth embodiment of the present invention.

FIG. 11 is a diagram showing the relationship between the workpiece and the data of the data setting means of the electric discharge machine according to the fourth embodiment of the present invention.

FIG. 12 is a diagram showing a relationship between machining electrodes and data of a data setting means of an electric discharge machine according to a fourth embodiment of the present invention.

FIG. 13 is a diagram showing another example of the data input format of the data setting means of the electric discharge machine according to the fourth embodiment of the present invention.

FIG. 14 is a diagram showing an example of a data input format of a data setting means of an electric discharge machine according to a fourth embodiment of the present invention.

FIG. 15 is a diagram showing an example of a data input format of a data setting means of an electric discharge machine according to a fourth embodiment of the present invention.

FIG. 16 is a diagram showing another example of the data input format of the data setting means of the electric discharge machine according to the fourth embodiment of the present invention.

FIG. 17 is a diagram showing another example of the data input format of the data setting means of the electric discharge machine according to the fourth embodiment of the present invention.

FIG. 18 is a flow chart showing the procedure of an automatic operation method for an electric discharge machine according to the fifth embodiment of the present invention.

FIG. 19 is a flowchart showing a procedure of an automatic operation method for an electric discharge machine according to a sixth embodiment of the present invention.

FIG. 20 is a flow chart showing the procedure of an automatic operation method for an electric discharge machine according to the seventh embodiment of the present invention.

FIG. 21 is a diagram showing an example of a data input format displayed on the CRT screen by the checking means of the electric discharge machine according to the seventh embodiment of the present invention.

FIG. 22 is an overall configuration diagram showing a conventional electric discharge machine.

FIG. 23 is a main part process chart showing a conventional process of measuring a workpiece.

FIG. 24 is a main part process chart showing a conventional electrical discharge machining process.

FIG. 25 is a diagram showing an example of a data input format for positioning a conventional workpiece.

FIG. 26 is a diagram showing an example of a data input format for performing conventional misalignment correction measurement of a machining electrode.

FIG. 27 is a diagram showing an example of a data input format for performing conventional electric discharge machining.

FIG. 28 is an overall configuration diagram showing another conventional electric discharge machining apparatus.

[Explanation of symbols]

 1 Machining Electrode 2 Workpiece 10 Numerical Control Device (NC) 14 Moving Table 15 Spindle 18 Magazine Rack 90 Reference Measuring Element 100 Memory Tag (Memory Means) 123 Reading Means 130 Automatic Electrode / Workpiece Changing Means (AWC) 131 Data Setting means 132 Workpiece mounting jig 133 Chuck 134 Electrode mounting jig 135 Checking means

Claims (14)

[Claims] 1. An electric discharge machine for exchanging and positioning a plurality of workpieces, replacing and positioning a plurality of machining electrodes, and performing electric discharge machining of the workpieces using the machining electrodes, comprising: data setting means. Process data setting step of setting various data relating to the positioning of the workpiece and various data relating to electric discharge machining in the storage means attached to the workpiece attaching jig using An electrode data setting step of setting various data relating to the machining electrode in a storage means attached to an electrode mounting jig and storing the data in the automatic electrode / workpiece exchanging means; Reading the data of the workpiece stored in the storage means attached to the workpiece mounting jig during the replacement of the workpiece mounting jig Checking whether or not the workpiece mounting jig is stored in the taking step and the automatic electrode / workpiece exchanging means, and if the jig is stored, the process is transferred to the workpiece data reading step and stored. If not, move the storage rack to the next step to check if it is stored, and transfer the read data of the workpiece to the numerical controller as workpiece positioning data and EDM data. Workpiece data transfer process, and the workpiece mounting jig is automatically replaced from the automatic electrode / workpiece exchanging means to a chuck installed at a predetermined position on the moving table to perform positioning operation of the workpiece. A workpiece positioning step of positioning the workpiece by exchanging the reference probe with the spindle when not in operation; An electrode data reading step of reading various data regarding the machining electrode stored in the storage means attached to the electrode attaching jig during the replacement of the electrode attaching jig, and the read various data regarding the machining electrode to the electrode. An electrode data transfer step of transferring to the numerical control device as misalignment data, and the machining electrode is replaced, and the reference position of the machining electrode is measured when the positioning operation for measuring the reference position of the machining electrode is not performed. Electrode measuring step for measuring the amount of misalignment, electric discharge machining step for performing electric discharge machining immediately after the electrode measuring step for measuring the amount of misalignment, and machining of the workpiece mounted on the workpiece mounting jig And a workpiece storing step of storing the workpiece in the automatic electrode / workpiece exchanging means, the workpiece data setting step and the electrode. The process from the workpiece data reading process to the workpiece storing process is sequentially performed based on the data setting process, and the workpiece data setting process to the workpiece storing process is sequentially repeated. EDM equipment. 2. An electric discharge machining method for exchanging and positioning a plurality of workpieces, replacing and positioning a plurality of machining electrodes, and performing electric discharge machining of the workpieces using the machining electrodes, comprising data setting means. Process data setting step of setting various data relating to the positioning of the workpiece and various data relating to electric discharge machining in the storage means attached to the workpiece attaching jig using An electrode data setting step of setting various data relating to the machining electrode in a storage means attached to an electrode mounting jig and storing the data in the automatic electrode / workpiece exchanging means; Reading the data of the workpiece stored in the storage means attached to the workpiece mounting jig during the replacement of the workpiece mounting jig Checking whether or not the workpiece mounting jig is stored in the taking step and the automatic electrode / workpiece exchanging means, and if the jig is stored, the process is transferred to the workpiece data reading step and stored. If not, move the storage rack to the next step to check if it is stored, and transfer the read data of the workpiece to the numerical controller as workpiece positioning data and EDM data. Workpiece data transfer process, and the workpiece mounting jig is automatically replaced from the automatic electrode / workpiece exchanging means to a chuck installed at a predetermined position on the moving table to perform positioning operation of the workpiece. A workpiece positioning step of positioning the workpiece by exchanging the reference probe with the spindle when not in operation; An electrode data reading step of reading various data regarding the machining electrode stored in the storage means attached to the electrode attaching jig during the replacement of the electrode attaching jig, and the read various data regarding the machining electrode to the electrode. An electrode data transfer step of transferring to the numerical control device as misalignment data, and the machining electrode is replaced, and the reference position of the machining electrode is measured when the positioning operation for measuring the reference position of the machining electrode is not performed. Electrode measuring step for measuring the amount of misalignment, electric discharge machining step for performing electric discharge machining immediately after the electrode measuring step for measuring the amount of misalignment, and machining of the workpiece mounted on the workpiece mounting jig And a workpiece storing step of storing the workpiece in the automatic electrode / workpiece exchanging means, the workpiece data setting step and the electrode. The process from the workpiece data reading process to the workpiece storing process is sequentially performed based on the data setting process, and the workpiece data setting process to the workpiece storing process is sequentially repeated. Electrical discharge machining method. 3. An electric discharge machine for exchanging and positioning a plurality of workpieces, replacing and positioning a plurality of machining electrodes, and performing electric discharge machining of the workpieces using the machining electrodes, comprising data setting means. The data relating to the positioning of the workpiece, the data relating to the machining electrode, and the data relating to electric discharge machining are set in the storage means attached to the workpiece attaching jig by using the automatic electrode A data setting step of accommodating in the workpiece exchanging means, and a storage means attached to the workpiece attaching jig in the middle of exchanging the workpiece attaching jig from the automatic electrode / object exchanging means A data reading step of reading various stored data regarding the machining electrode and the workpiece, and the workpiece mounting jig is housed in the automatic electrode / workpiece exchanging means. Check if there is any, and if it is stored, move the processing to the data reading step, and if it is not stored, move the storage rack to the next step to check whether it is stored and check the read processing. A data transfer step of transferring various data relating to the electrode and the workpiece as electrode misalignment data, workpiece positioning data and electrical discharge machining data to a numerical control device, and the automatic electrode / workpiece exchanging means to the workpiece The mounting jig is automatically replaced with a chuck installed at a predetermined position on the moving table, and when the positioning operation of the workpiece is not being performed, the reference probe is replaced with the spindle to position the workpiece. The workpiece positioning step to be performed and the above-mentioned processing when the machining electrode is replaced and the positioning operation for measuring the reference position of the machining electrode is not performed. The electrode measurement process for measuring the misalignment amount to measure the reference position of the electrode, the electrical discharge machining process for performing electrical discharge machining immediately after the electrode measurement process for measuring the misalignment amount, and the process for attaching to the workpiece mounting jig When the processing of the workpiece is completed, the workpiece is stored in the automatic electrode / workpiece exchanging means. From the data reading step to the workpiece storing step based on the data setting step. And an electrical discharge machining apparatus which sequentially repeats from the data setting step to the workpiece storing step. 4. An electrical discharge machining apparatus and an electrical discharge machining method, wherein a plurality of workpieces are exchanged and positioned, a plurality of machining electrodes are exchanged and positioned, and the workpiece is electrical discharge machined using the machining electrodes. , The data setting means is used to set various data relating to the positioning of the workpiece, the data relating to the machining electrode and the data relating to electric discharge machining in a storage means attached to the workpiece attaching jig as one set. The data setting step of storing in the automatic electrode / workpiece exchanging means, and the workpiece attaching jig during the exchanging of the workpiece attaching jig from the automatic electrode / workpiece exchanging means A data reading step of reading various data relating to the machining electrode and the work piece stored in the storage means; and the work piece collection in the automatic electrode / work piece exchanging means. Check process to check whether the attached jig is stored, and if it is stored, move the process to the data reading process, and if it is not stored, move the storage rack to the next step and check whether it is stored And a data transfer step of transferring the read data on the machining electrode and the workpiece as electrode misalignment data, workpiece positioning data and electrical discharge machining data to a numerical controller, and the automatic electrode / workpiece exchange Means to automatically replace the workpiece mounting jig with a chuck installed at a predetermined position on the moving table, and when the positioning operation of the workpiece is not performed, the reference probe is replaced with the spindle. The workpiece positioning step of positioning the workpiece and the positioning operation of replacing the machining electrode and measuring the reference position of the machining electrode are performed. An electrode measuring step for measuring the misalignment amount for measuring the reference position of the machining electrode when there is no electrode, an electric discharge machining step for performing electrical discharge machining immediately after the electrode measuring step for measuring the misalignment amount, and the workpiece mounting jig. And a workpiece storing step of storing the workpiece in the automatic electrode / workpiece exchanging means when the processing of the workpiece mounted on the workpiece is completed, based on the data setting step. An electric discharge machining method characterized in that the steps up to the article storage step are sequentially performed, and the steps from the data setting step to the workpiece storage step are sequentially repeated. 5. An electric discharge machine for exchanging and positioning a plurality of workpieces, replacing and positioning a plurality of machining electrodes, and performing electric discharge machining of the workpieces using the machining electrodes. The data relating to the positioning of the workpiece, the data relating to the machining electrode, and the data relating to electric discharge machining are set in the storage means attached to the workpiece attaching jig by using the automatic electrode A data setting step of accommodating in the workpiece exchanging means, and a storage means attached to the workpiece attaching jig in the middle of exchanging the workpiece attaching jig from the automatic electrode / object exchanging means A data reading step of reading various stored data regarding the machining electrode and the workpiece, and the workpiece mounting jig is housed in the automatic electrode / workpiece exchanging means. Check if there is any, and if it is stored, move the processing to the data reading step, and if it is not stored, move the storage rack to the next step to check whether it is stored and check the read processing. A data transfer step of transferring various data relating to the electrode and the workpiece as electrode misalignment data, workpiece positioning data and electrical discharge machining data to a numerical control device, and the automatic electrode / workpiece exchanging means to the workpiece The mounting jig is automatically replaced with a chuck installed at a predetermined position on the moving table, and when the positioning operation of the workpiece is not being performed, the reference probe is replaced with the spindle to position the workpiece. When the workpiece positioning step is performed and the machining electrodes are replaced, the machining electrodes are automatically
If not stored in the workpiece replacement means, a command output step of outputting a command to the numerical controller to cancel the misalignment measurement for measuring the reference position of the machining electrode and the electric discharge machining, and exchanging the machining electrode Of the electrode measurement step of measuring the center deviation amount for measuring the reference position of the machining electrode when the positioning operation for measuring the reference position of the machining electrode is not performed, and the electrode measurement step of measuring the center deviation amount. Immediately after that, there are an electric discharge machining step of performing electric discharge machining, and a workpiece storing step of storing the workpiece in the automatic electrode / workpiece exchanging means when the processing of the workpiece mounted on the workpiece mounting jig is completed. The data reading step to the workpiece storing step are sequentially performed based on the data setting step, and the workpiece storing step is sequentially repeated from the data setting step. An electric discharge machining device characterized by: 6. An electric discharge machining method, wherein a plurality of workpieces are exchanged and positioned, a plurality of machining electrodes are exchanged and positioned, and the workpiece is automatically electric discharge machined using the machining electrodes. Various data relating to positioning of the workpiece, various data relating to the machining electrode, and various data relating to electric discharge machining are set in the storage means attached to the workpiece attaching jig by using the data setting means as one set. A data setting step of accommodating in the automatic electrode / workpiece exchanging means, and a step of attaching the workpiece mounting jig in the middle of exchanging the workpiece mounting jig from the automatic electrode / workpiece exchanging means A data reading step of reading various data relating to the machining electrode and the work piece stored in a storage means; and the work piece attachment jig in the automatic electrode / work piece exchange means. If it is stored, the process is transferred to the data reading process, and if it is not stored, the storage rack is moved to the next step to check whether it is stored. A data transfer step of transferring various data relating to the machining electrode and the workpiece as electrode core misalignment data, workpiece positioning data and electric discharge machining data to a numerical control device; The work piece mounting jig is automatically replaced with a chuck installed at a predetermined position on the moving table, and when the positioning operation of the work piece is not performed, the reference probe is replaced with the main spindle to move the work piece. The workpiece positioning step for positioning, and when the machining electrode is replaced, the machining electrode is
If not stored in the workpiece replacement means, a command output step of outputting a command to the numerical controller to cancel the misalignment measurement for measuring the reference position of the machining electrode and the electric discharge machining, and exchanging the machining electrode Then, an electrode measuring step of measuring a misalignment amount for measuring the reference position of the machining electrode when a positioning operation for measuring the reference position of the machining electrode is not performed, and an electrode measuring step of performing the misalignment amount measurement. Immediately after that, there are an electric discharge machining step of performing electric discharge machining, and a workpiece storing step of storing the workpiece in the automatic electrode / workpiece exchanging means when the processing of the workpiece mounted on the workpiece mounting jig is completed. The data reading step to the workpiece storing step are sequentially performed based on the data setting step, and the workpiece storing step is sequentially repeated from the data setting step. An electrical discharge machining method characterized by: 7. The data setting step of setting various data relating to positioning of a workpiece, various data relating to machining electrodes, and various data relating to electric discharge machining in a storage means by using a data setting means, the positioning of the workpiece. As various data regarding the X dimension, the Y dimension and the Z dimension from the reference position of one of the plurality set on the workpiece mounting jig to the measuring position of the workpiece side surface and the measuring position of the upper surface. The X dimension, Y dimension, plate thickness and positioning method are set, and X dimension, Y dimension, Z dimension and bottom surface measurement from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode as various data regarding the machining electrode. The X dimension and the Y dimension up to the position and the positioning method are set, and the machining position data from the reference position set by the workpiece positioning is set as various data regarding the electric discharge machining The electric discharge machining apparatus according to claim 1, 3 or 5, wherein a machining electrode number and a machining condition column number or a machining condition number are set. 8. The data setting step of setting various data relating to positioning of a workpiece, various data relating to machining electrodes, and various data relating to electric discharge machining in the storage means by using the data setting means, the positioning of the workpiece. As various data regarding the X dimension, the Y dimension and the Z dimension from the reference position of one of the plurality set on the workpiece mounting jig to the measuring position of the workpiece side surface and the measuring position of the upper surface. The X dimension, Y dimension, plate thickness and positioning method are set, and X dimension, Y dimension, Z dimension and bottom surface measurement from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode as various data regarding the machining electrode. The X dimension and the Y dimension up to the position and the positioning method are set, and the machining position data from the reference position set by the workpiece positioning is set as various data regarding the electric discharge machining 7. The electric discharge machining method according to claim 2, 4 or 6, wherein a machining electrode number and a machining condition column number or a machining condition number are set. 9. The data reading step of reading various data relating to a machining electrode stored in a storage means records a signal of being used when reading the stored data and reads a signal of being used. To output a command to cancel the data transfer process of transferring the electrode misalignment data to the numerical control device and the electrode measuring process of measuring the misalignment amount measuring the reference position of the machining electrode to the numerical control device. The electric discharge machining apparatus according to claim 1, 3, or 5. 10. The data reading step of reading various data relating to a machining electrode stored in a storage means records a signal of being used when reading the stored data and reads a signal of being used. To output a command to cancel the data transfer process of transferring the electrode misalignment data to the numerical control device and the electrode measuring process of measuring the misalignment amount measuring the reference position of the machining electrode to the numerical control device. The electric discharge machining method according to claim 2, claim 4, or claim 6. 11. The data reading step of reading various data relating to a workpiece and electric discharge machining stored in a storage means records a signal of being used and a signal of being used when the various data stored is read. When the is read, a command for canceling the data transfer step of transferring the workpiece positioning data to the numerical controller and the workpiece positioning step of positioning the workpiece is output to the numerical controller. The electric discharge machining apparatus according to claim 1, 3, or 5. 12. The data reading step of reading various data relating to a workpiece and electric discharge machining stored in a storage means records a signal of being used and a signal of being used when reading the stored data. When the is read, a command for canceling the data transfer step of transferring the workpiece positioning data to the numerical controller and the workpiece positioning step of positioning the workpiece is output to the numerical controller. The electric discharge machining method according to claim 2, claim 4, or claim 6. 13. When exchanging a machining electrode, the command output step of instructing the numerical control device when the machining electrode is not housed temporarily suspends the operation of the numerical control device and displays the machining electrode on the monitor screen. Numbers and various data relating to the machining electrodes, such as X dimension, Y dimension and Z dimension from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode, and X dimension, Y dimension and positioning from the measurement position on the bottom surface. When the input section for setting the data is displayed and the various data are set and input, and the machining electrode is housed in the automatic electrode / workpiece exchanging means, the electrode attachment jig having the machining electrode attached thereto is stored, the numerical controller The electric discharge machining apparatus according to claim 5, wherein the electric discharge machine starts to operate again. 14. When exchanging a machining electrode, the command output step of instructing a numerical control device when the machining electrode is not housed temporarily suspends the operation of the numerical control device and displays the machining electrode on a monitor screen. Numbers and various data relating to the machining electrodes, such as X dimension, Y dimension and Z dimension from the center of the electrode mounting jig to the measurement position on the side surface of the machining electrode, and X dimension, Y dimension and positioning from the measurement position on the bottom surface. When the input section for setting the data is displayed and the various data are set and input, and the machining electrode is housed in the automatic electrode / workpiece exchanging means, the electrode attachment jig having the machining electrode attached thereto is stored, the numerical controller 7. The electric discharge machining method according to claim 6, wherein the electric discharge machining is started again.