JP3134498B2 - Numerical control unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical control apparatus for processing a work, and more particularly to a work control apparatus for processing a work and a work changing apparatus for replacing the work with another one. The present invention relates to a numerical control device of a type capable of performing such operations.

[0002]

2. Description of the Related Art Conventionally, a numerical control device of the type described above comprises (a) numerical control information storage means for storing numerical control information necessary for numerically controlling not only a work processing device but also a work exchange device; ) It is configured to include numerical control means for numerically controlling the work processing device and the work exchange device based on the stored numerical control information.

[0003]

The numerical control information used in the conventional apparatus is information obtained by combining information for operating a work processing apparatus and information for operating a work exchange apparatus. For this reason, the operator can take the numerical control information into consideration while considering the relationship between the information relating to the work processing and the information relating to the work exchange and the mutual positional relationship (that is, the execution order of each operation) in the numerical control information as a whole. It has to be created and takes time.

[0004] Further, the time at which the workpiece is to be replaced is not always fixed, and may be limited in relation to a processing target or the like. For example, when the processing goal is to reduce the time required for one processing as much as possible, the processing time is shortened by performing the work exchange in parallel with a certain operation of the work processing apparatus. For this purpose, the operator selects an appropriate one from at least one operation to be performed by the work processing apparatus, and transmits numerical control information so that the selected operation is performed in parallel with the work exchange. Will be created.

[0005] However, numerical control information is not always created correctly, that is, it is not always created as intended by an operator, and in fact, it may not be created correctly due to, for example, an operator's mistake. In this case, if the workpiece exchange is not performed in parallel with a certain appropriate operation of the workpiece processing device,
When the goal of shortening the processing time cannot be achieved, and the work exchange is performed in parallel with a certain operation of the work processing device, but the operation is not suitable for parallel operation with the work exchange. In this case, work processing is hindered. In the latter case, for example, if a workpiece is exchanged while the workpiece processing device is currently engaging a tool with the workpiece, the workpiece that should otherwise be kept at a fixed position is moved by the workpiece exchange device. Then, the work and the work processing device are damaged.

As is apparent from the above description, in the conventional apparatus, it takes time and effort to create the numerical control information so that the workpiece can be exchanged at the correct time. There was a problem that a mistake could lead to a serious accident. The present invention has been made to solve this problem,
The information relating to the work exchange and the information relating to the work machining can be created independently of each other, and the two information are automatically combined without operator intervention to control the work machining apparatus and the work exchange apparatus, respectively, thereby achieving numerical values. It is an object of the present invention to provide a numerical controller capable of reducing the burden of creating control information and preventing an operator from making a mistake.

[0007]

To achieve this object, the gist of the present invention is to provide a work processing apparatus for processing a work and a work exchange apparatus for replacing the work with another work as shown in FIG. the apparatus for controlling each of which includes information necessary to numerically controlled (a) workpiece machining device, a work
A numerical value that does not include the information required to numerically control the switching equipment
A numerical control information storage means 1 for storing control information, (b) based on the stored numerical control information among a plurality of operation to be performed on the workpiece machining device, in parallel with the workpiece exchange operation by the workpiece exchange device A parallel operation storage means 2 for storing a parallel operation which is an operation to be executed, and (c) numerical control
The work processing apparatus is numerically controlled based on the numerical control information stored in the information storage means 1, and the parallel operation record is performed.
If the parallel operation is not stored in the storage unit 2,
Work exchange to the workpiece exchange device prior to the operation of the
While the parallel operation is stored in the parallel operation storage means 2.
If stored, when the operation of each time to be executed by the workpiece machining apparatus matches the parallel operation stored in parallel operation storing means 2, parallel and workpiece machining apparatus and word over click changer which operate, if they do not match, lies in the as including a numerical control unit 3 for Ru is operated only work machining apparatus.

[0008]

Therefore, in the numerical controller according to the present invention, the operator prepares the numerical control information so as not to include the information for exchanging the work, and further, performs the work machining to execute the work exchange in parallel. operation, that parallel of the device
The column operation is stored separately from the numerical control information, and based on both the information, the numerical control means 3 determines that each operation to be executed by the work processing device matches the stored parallel operation , The device and the work exchange device are operated in parallel, and if they do not match, only the work processing device is operated. That is, in the numerical control device according to the present invention, the operator needs to perform numerical control information on work machining and information on work exchange (information on which operation of the work machining device the work exchange operation is performed in parallel with). )
Are stored independently of each other, the numerical control means 3
Thus, the two pieces of information are correctly linked and the workpiece machining and the workpiece exchange are performed as intended by the operator without the intervention of the operator. Also, the parallel operation memory
If the parallel operation is not stored in the stage 2,
Prior to the operation of the machining equipment, the workpiece
Let them work. If the parallel operation is not stored,
The work is replaced at the same time.

[0009]

As a result, according to the present invention, the burden on the operator in creating the numerical control information is reduced, and the operator is not mistaken when combining the information on the work exchange and the information on the work processing. There is no room for occurrence, and the effect is obtained that the work exchange is always performed at the correct time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An NC apparatus according to an embodiment of the present invention will be described below in detail with reference to the drawings.

The NC device is connected to a machine tool 8 shown in FIG. 2 and numerically controls the machine tool. The machine tool 8 processes a workpiece mounted on a pallet with a tool 12 such as a drill and a tap mounted on a main shaft 10. The XY axis moving device 14, the Z axis moving device 16,
It comprises a spindle rotating device 18, a tool changing device 20, a pallet changing device 22, and the like.

The XY-axis moving device 14 uses the X-axis motor 30 and the Y-axis motor 32 as drive sources, respectively, and moves the tool 12 in the direction of the main shaft with respect to the workpiece (hereinafter referred to as the Z-axis direction. ) Is relatively moved in the X-axis direction and the Y-axis direction, which are perpendicular to the X-axis direction. Z axis moving device 16
Moves the tool 12 relative to the workpiece in the Z-axis direction using the Z-axis motor 34 as a drive source. Spindle rotating device 1
8 rotates the spindle 10 using the spindle motor 36 as a drive source, thereby rotating the tool 12. Tool changer 2
0 has a tool magazine 42 which is turned by a magazine motor 40, and a large number of tools 12 are
The plurality of tool pots are detachably stored and held, and indexing is performed to a position where one of the tools 12 can be replaced with a tool for mounting the tool 12 on the spindle 10. The tool changer 20 further removes the tool 12 from the spindle 10 and removes the tool magazine 42
After that, the indexed tool 12 is mounted on the spindle 10.

The pallet changing device 22 intermittently rotates a horizontal table 48 about an axis parallel to the Z axis by using a pallet changing motor (hereinafter, simply referred to as a C-axis motor) 46 as a driving source. By rotating the table 48 by 180 degrees, the respective positions of the first pallet 50 on the left side in the figure and the second pallet 52 on the right side of the two parts of the table 48 symmetrical with respect to the rotation axis. Are exchanged alternately.
At present, the first pallet 50 is located at the attachment / detachment position where the worker attaches / detaches the work via the door 56 which can be opened / closed by the operator, and the second pallet 52 is located at the machining position where the machining of the work by the tool 12 is performed. However, the table 48 is rotated by 180 degrees in this state, so that the first
The pallet 50 is moved to the processing position, and the second pallet 52 is moved to the attaching / detaching position.

That is, in the present embodiment, the pallet changing device 22 is a "work changing device" in the present invention.
The portion of the machine tool 8 excluding the pallet changing device 22 constitutes one embodiment of the “work processing device” of the present invention.

As shown in FIG. 1, the NC device 100 is mounted on the rear of the machine tool 8. The present NC device 10
0 is mainly composed of a computer, and the computer has a plurality of CPUs, that is, a master CPU 111, a slave CPU 112, and an ATC as shown in FIG.
The CPU 113 is provided.

[0016] The master CPU 111
The entire system is controlled comprehensively, and the NC device 100
A master ROM 114 preliminarily storing a general control program, constants, and the like for controlling the whole as a whole, and a first master RAM 1 temporarily storing variables, flags, and the like during execution of machining control.
15 and a second master RAM 116 in which NC programs and the like necessary for processing various works are stored in advance. The second master RAM 116 stores data as it is even after the power is turned off. Then, the master CPU 111 is an input unit (for example, a key) 123 for inputting an NC program and other data.
And display means (for example, a liquid crystal screen) 124 for displaying the NC programs and the like. The input means 123 and the display means 124 are provided on an operation panel 125 on the front of the machine tool 8, as shown in FIG.

The slave CPU 112 performs machining of various works and pallet replacement. As shown in FIG. 3, a slave ROM 117 previously stores a motor drive program, constants and the like for machining and pallet replacement of various works. And a slave RAM 118 that temporarily stores variables, flags, and the like during execution of machining control. Then, the slave CPU 112 controls the X-axis motor 30, Y-axis motor 32, Z-axis motor 34,
6 and a C-axis motor 46.

The ATC CPU 113 controls tool change, and temporarily stores an ATC ROM 119 in which a magazine turning program, constants, and the like necessary for tool change are stored in advance, and variables, flags, and the like during execution of the tool change control. It is connected to the ATCRAM 120. And AT
The CCPU 113 is connected to the magazine motor 40.

Master CPU 111 and slave CPU 11
Between them, a common RAM 121 between MSs is connected in order to mutually communicate commands and other information between them.
In this inter-MS common RAM 121, the master CPU
Various information is written and read from both the CPU 111 and the slave CPU 112. Then, the master CPU 111 controls the X-axis motor 30, the Y-axis motor 32, the Z-axis motor 34, the main shaft motor 36, and the C-axis motor 46 via the inter-MS common RAM 121 and the slave CPU 112. The X-axis motor 30 and the like are configured to perform as many parallel operations as the machine tool 8 allows.

As shown conceptually in FIG. 4, various flags ("F" at the end of the figure)
) And various numerical data (indicated by suffix “V” in the figure) are stored in advance. Hereinafter, the functions of these flags and numerical data will be described.

A. Function of various flags Execution start command flag (“START
F "): A flag for instructing the start of one execution of machining control in the state of" 1 ". By setting by the master CPU 111 and reading by the slave CPU 112, the slave CP
A flag for the U112 to monitor the issuing status of the master CPU 111.

An execution end flag (“END” in the figure)
F "): A flag notifying that one execution of machining control has been completed in the state of" 1 ". Unlike the previous flag, the slave CPU 112 sets the master CPU 11
A flag for the master CPU 111 to monitor the state of the slave CPU 112, that is, the actual processing state, by reading 1.

Main shaft operation state command flag (“SP CMD F” in the figure): Main shaft 10 in the state of “0”
Command to stop the main spindle 1 in the state of "1".
A flag instructing to rotate 0 to the right, and instructing the main shaft 10 to rotate to the left in the state of “2”. A flag for the slave CPU 112 to monitor the issuing state of the master CPU 111, similarly to the execution start command flag.

B. Functions of Various Numerical Data (1) The master CPU 1 is set by the slave CPU 112
Numerical data for the master CPU 111 to monitor the state of the slave CPU 112, that is, the actual machining state (sequentially updated by the slave CPU 112) by reading by the master CPU 111. X-axis current position data (“X POS in FIG.
V "): Numerical data representing the current position of the tool 12 in the X-axis direction. Y-axis current position data (in the figure, "Y POS
V "): Numerical data representing the current position of the tool 12 in the Y-axis direction. Z-axis current position data (“Z POS in the figure
V "): Numerical data representing the current position of the tool 12 in the Z-axis direction. C-axis current position data (“C POS in the figure
V "): Numerical data representing the current angular position of the table 48. Specifically, when the first pallet 50 of the table 48 is at the attachment / detachment position facing the operator, it is “0 (representing 0 degrees)”, and when the second pallet 52 is at the attachment / detachment position, it is “180000 (180 degrees). Represents).

(2) The slave CPU 112 sets and reads out the slave CP
Numerical data for U112 to monitor the issuing status of master CPU 111 X-axis movement command value data (in the figure, "X CMD"
V "): Numerical data for instructing the amount of movement of the tool 12 in the X-axis direction, that is, the amount of drive of the X-axis motor 30. Y-axis movement command value data (“Y CMD in the figure”
V "): Numerical data for instructing the amount of movement of the tool 12 in the Y-axis direction, that is, the amount of drive of the Y-axis motor 32. Z-axis movement command value data (“Z CMD in the figure
V "): Numerical data for instructing the amount of movement of the tool 12 in the Z-axis direction, that is, the amount of drive of the Z-axis motor 34. C-axis rotation command value data (“C CMD in the figure”
V "): The amount of rotation of the table 48, that is, the C-axis motor 4
Numerical data for commanding the driving amount of 6. When the table 48 is turned (work exchange), it becomes “180000”. Spindle speed command value data (“SP C
MDV "): Numerical data for instructing the rotation speed of the spindle 10, that is, the rotation speed of the spindle motor 36. Feed speed command value data (“FEED
V "): Numerical data for commanding the feed speed of the spindle 10 (movement speed in the Z-axis direction), that is, the rotation speed of the Z-axis motor 34.

Master CPU 111 and ATC CPU 113
Between them, an inter-MA common RAM 122 similar to the inter-MS common RAM 121 is connected. This common RA between MAs
As conceptually shown in FIG. 5, M122 includes a tool change start command flag (“A START F” in the figure),
Tool change end flag ("A END F" in the figure)
And tool pot number data (“A POT
V ") is set. Hereinafter, these flags and the like will be described.

Tool change start command flag: A flag for commanding the start of one tool change execution in the state of “1”.
The ATC CPU 113 sets the master CPU 111 and reads the data.
A flag for monitoring the issuing status of 111. Tool change end flag: A flag indicating that the execution of one tool change has been completed in the state of "1". ATC
The setting by the CPU 113 and the reading by the master CPU 111 cause the master CPU 111 to
For monitoring the status of the tool, that is, the actual tool change status. Tool pot number data: Numerical data representing the number of the tool pot to be determined this time in the tool magazine 42. Similar to the tool change start command flag, ATCCP
Numerical data for U113 to monitor the issuing status of master CPU 111.

The structure of the second master RAM 116 is shown in FIG.
Is shown conceptually. This second master RAM 116 has N
A C program and a parallel operation instruction code indicating an operation to be executed in parallel with pallet exchange are stored in advance. This parallel operation instruction code is input to the input means 12 by the operator.
3 can be set as desired. In the figure,
A tap cut program, which is an example of an NC program, and an instruction code “M06”, which is an example of a parallel operation instruction code, that indicates tool exchange are described.

That is, the NC program has a plurality of types and amounts of operations to be executed on at least one work mounted on each of the pallets 50 and 52, arranged in the order of the operations. In the present embodiment, this constitutes one aspect of the “numerical control information” of the present invention.

The general control program stored in the master ROM 114 is represented by a flowchart shown in FIG. This comprehensive control program is roughly described as follows:
While sequentially reading out the operation instructions in the NC program one by one from the second master RAM 116, the motors 30 and the like are controlled so that the operation instructions are realized. Further, this comprehensive control program determines whether or not a parallel operation instruction code is stored in the second master RAM 116 prior to reading out the NC program. Pallet exchange is performed by rotating 48 by 180 degrees,
On the other hand, when the parallel operation instruction code is stored,
After reading the NC program, it is sequentially determined whether or not each operation instruction corresponds to the current parallel operation instruction code. If so, the current operation and the pallet exchange are executed in parallel. If not, only this operation is executed alone.

The comparison between the operation command and the parallel operation command code of each time and the machining control according to the result are shown in FIG. 7 in S321, 322, 323,.
The execution contents are classified into two types. That is, of all the operation contents that can be controlled by the NC device 100, there are two execution contents, one that can be operated in parallel with the pallet exchange operation and the other that cannot be executed (parallel operation instruction not set). They are classified into types. One example of the former is the execution contents of the parallel operation of the tool change and the pallet change, and details thereof are shown in the flowchart of FIG.

Hereinafter, the overall control program will be described in detail with reference to FIG. First, in step S300 (hereinafter simply referred to as S300; the same applies to other steps), it is determined whether or not a parallel operation instruction code has been set this time. That is, the second master RAM 116
Is determined whether or not the parallel operation instruction code is stored. If it is not stored this time, the determination is YES, and pallet replacement is performed in S320.

The details of this step are shown in the flowchart of FIG. That is, first, in S401, the C-axis rotation command value data is set to “18” in the inter-MS common RAM 121.
0000 ", and then, in S402, the execution start command flag is set to" 1 "in the inter-MS common RAM 121, thereby instructing the slave CPU 112 to start executing pallet exchange. afterwards,
In S403, it is waited for the execution end flag to become “1” in the inter-MS common RAM 121.
It is waited for the slave CPU 112 to end the current pallet exchange. If pallet change is completed, the judgment is YE
It becomes S, and it moves to 301 of FIG.

In this step, the second master RAM
One operation instruction is read from 116, and in the following steps, the type of the current operation instruction is determined,
In order to realize the operation content of this time, the common R
Various flags and various command value data of the AM 121 are set.

More specifically, first, in S311, the current operation command is a positioning movement command (“G0
0 ") is determined. Here, the “positioning movement command” means a command to move the tool 12 in the X and Y axis directions to position the tool 12 with respect to the workpiece at the processing position.

If the current operation command is a positioning movement command, the determination in S311 is YES, and in S321, a flag and command value data for realizing positioning movement are set. Specifically, the X-axis movement command value data and the like are set to appropriate values, and the execution start command flag is set to “1”.
The X-axis motor 30 and the like are controlled via the U112, and as a result, the positioning movement, which is the current operation command, is realized. In this step, M
The execution end flag is “1” in the inter-S common RAM 121
Is determined, that is, whether or not the positioning movement has been completed, and if it has been completed, the process proceeds to S303.

In this step, the slave RAM 1
It is determined whether or not a program end flag (not shown) indicating that processing has been completed for all of the current NC programs in the state of “1” is “1”. This time, assuming that it is "0" instead of "1",
If the determination is NO, the process returns to S301 and the next execution of the operation command is started. However, if it is assumed to be “1”, the determination becomes YES, and one processing control (normally, processing for one workpiece) ) Ends.

The case where the current operation command is a positioning movement command has been described above, but if not, the determination in S311 is NO, and in S312, the current operation command is a cutting movement command (see FIG. In "G0
1 ") is determined. Here, the “cutting movement command” means a command to move the tool 12 in order to cut the workpiece with the tool 12.

If the current operation command is a cutting movement command, the determination in S312 is YES, and in S322, a flag for cutting movement and command value data are set in accordance with S321, and thereafter, , S303.

If the current operation command is neither a positioning movement command nor a cutting movement command, both the determinations in S311 and S312 are NO, and in S313, the current operation command is a tool change command ("M06" in the figure). ) Is determined.

If the current operation command is a tool change command, the determination in S313 is YES, and in S323, a flag and command value data for executing the tool change command are set. The details will be described with reference to FIG.

First, in S501, the common RA between MSs
In M121, the value of the tool pot is set to the number of the tool pot from which the tool 12 should be taken out of the tool magazine 42 this time. Next, in S502, it is determined whether or not the current parallel operation instruction code is “M06”, that is, whether or not the current operation instruction is one that enables parallel operation with pallet exchange. Assuming that "M06" is stored as the parallel operation instruction code this time, the determination is YES, the C-axis rotation instruction value data is set to "180000" in S503, and the execution start instruction flag is set to "180000" in S504. 1 ", and the tool change start command flag is also set to" 1 ".

In this embodiment, the magazine rotation can be executed independently of each other by the slave CPU 112 and the tool exchange by the ATC CPU 113.
If the execution start command flag and the tool change start command flag are simultaneously set to “1”, the slave CPU 11
2, rotation of the C-axis motor 46, that is, pallet change, is executed, and at the same time, rotation of the magazine motor 40, that is, tool change, by the ATC CPU 113 is executed. However, executing the parallel operation using two CPUs is not indispensable for implementing the present invention, and the present invention may be implemented such that one CPU performs the parallel operation. .

In a series of machining, the tool change is not always performed only once, but may be performed plural times. Therefore, S502 is designed so that the determination is YES only when the current operation content, that is, the tool change and the parallel operation command match for the first time, and the determination becomes NO when they match again. This is because if the work is changed during the second or subsequent tool change, the work is changed without finishing the machining.

Thereafter, in S505, both the pallet exchange and the tool exchange are terminated, and it is waited that both the execution end flag and the tool exchange end flag become "1". If they become "1", the judgment becomes YES. The process returns to S303 in FIG.

On the other hand, unlike the above example, the parallel operation instruction code is not set, or "M0
If a parallel operation instruction code other than “6” is set, the determination in S502 is NO, and in S510,
Only the tool change start command flag is set to "1", whereby only the tool change by the ATC CPU 113 is executed. Thereafter, it is waited in S511 that the tool change is completed.

The current operation command is not the above-mentioned positioning movement command or the like, but a program end command (“M30” in the figure).
), The determination in S315 of FIG.
In S, a program end process for setting the program end flag to "1" is executed in S325. In this case, if it is determined in S303 whether or not the program end flag is “1”, the determination becomes YES, and the single execution of the comprehensive control program ends.

As is apparent from the above description, in the present embodiment, when the parallel operation instruction code is not set, the work exchange is performed alone prior to the current machining. Therefore, in the present embodiment, even if the operator forgets to set the parallel operation instruction code in the NC device 100, the work exchange is performed without fail before the current NC machining, so that the work exchange is not performed. In addition, there is obtained an advantage that a situation in which the current NC processing is performed on the processed work does not occur. In addition, when the workpiece exchange is intentionally performed independently, the operator does not need to set the parallel operation instruction code, and the effect of reducing the burden on the operator is obtained.

On the other hand, when the parallel operation instruction code is set, the work exchange is performed in parallel with the tool exchange. Since the tool change can be performed irrespective of the existence of the work, a parallel operation with the work change is possible, and the tool change (more precisely, the first tool change) is performed as described above. Since the processing is performed at the beginning of the processing, that is, in a state where the processing (including positioning and the like) on the workpiece is not substantially performed, the workpiece replacement is performed in parallel with the workpiece replacement at the beginning of a series of processing. Will be executed.

Therefore, in the present embodiment, when the operator wants to execute the work changing operation in parallel with the tool changing operation, the operator does not need to directly describe the parallel operation request in the NC program, and performs the work changing operation. It is only necessary to set a tool change operation in the NC device 100 as an operation to be executed in parallel with the operation. Therefore, in the present embodiment, the operator does not need to consider the parallel operation when creating the NC program, thereby reducing the burden of creating the NC program and avoiding the mistake in the description of the NC program related to the work exchange. In addition, there is an effect that it is not necessary to worry about an accident due to a description error.

As is apparent from the above description, in this embodiment, the portion of the second master RAM 116 for storing the NC program constitutes one mode of the "numerical control information storage means 1" of the present invention. 2nd master RAM1
16, the part storing the parallel operation instruction code cooperates with the input means 123 to constitute one embodiment of the "requested parallel operation storage means 2", and the part of the computer of the NC apparatus 100 other than the second master RAM 116. Constitute one aspect of the “numerical control means 3”.

Although the embodiment of the present invention has been described in detail with reference to the drawings, various modifications and improvements may be made based on the knowledge of those skilled in the art without departing from the scope of the claims. The present invention can be carried out in the mode in which it is performed.

[Brief description of the drawings]

FIG. 1 is a diagram conceptually showing a configuration of the present invention.

FIG. 2 is a side view schematically illustrating a machine tool in which the NC device according to one embodiment of the present invention is used.

FIG. 3 is a system diagram showing an electric system of the NC device together with an electric system of a machine tool.

FIG. 4 is a diagram conceptually showing a configuration of an inter-MS common RAM in FIG. 3;

5 is a diagram conceptually showing a configuration of an inter-MA common RAM in FIG. 3;

FIG. 6 is a diagram conceptually showing a configuration of a second master RAM in FIG. 3;

FIG. 7 is a flowchart showing a comprehensive control program stored in advance in a master ROM of FIG. 3;

FIG. 8 is a flowchart showing details of S320 in FIG. 7;

FIG. 9 is a flowchart illustrating details of S323 in FIG. 7;

[Explanation of symbols]

 8 Machine tool 22 Pallet changing device 100 NC device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-311408 (JP, A) JP-A-2-121003 (JP, A) JP-A-59-202507 (JP, A) JP-A-2- 234204 (JP, A) JP-A-61-62104 (JP, A) JP-A-5-94206 (JP, A) JP-A-62-66306 (JP, U) (58) Fields investigated (Int. ⁷ , DB name) G05B 19/18-19/46 B23Q 15/00-15/28

Claims (1)

(57) [Claims] An apparatus for controlling a work processing apparatus for processing a work and a work exchange apparatus for exchanging the work for another work, wherein information necessary for numerically controlling the work processing apparatus is provided . Including
Information necessary for numerically controlling the workpiece exchange device.
And numerical control information storage means for storing the numerical control information excluding, based on the stored numerical control information among a plurality of operation to be performed on the workpiece machining device, parallel to the workpiece exchange operation by the workpiece exchange device Action that should be performed
A parallel operation storage means for storing a certain parallel operation, and numerically controlling the work processing apparatus based on numerical control information stored in the numerical control information storage means ,
If no parallel operation is stored in the parallel operation storage means,
In this case, the work exchange is performed prior to the operation of the work processing device.
While the exchange device performs the workpiece exchange operation,
When the parallel operation stage is stored, when each round of operations to be executed by the workpiece machining apparatus matches the parallel operation stored in parallel operation storage means, and a work machining apparatus
A word over click changer parallel operated, if they do not match
The numerical control apparatus which comprises a numerical control unit Ru is operated only work machining apparatus.