JP2628925B2 - Modal command management system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modal command management system for a numerical controller, and more particularly to a modal command management system for managing a plurality of sets of modal commands.

[Conventional technology]

The automatic operation of the numerical control device includes a memory operation that operates according to a program created in advance, and a one-time operation on the spot.
There is an MDI operation that performs an operation while inputting a command for each block. Once commanded, the modal command, which is valid until a cancel command or another command in the same group comes, is managed and used in common without being distinguished between memory operation and MDI operation. I have.

Here, an example of the modal command is as follows.
G code belonging to group 1 is G00, G01, G0
2, G03, those belonging to group 2 are G17, G18, G19,
Those belonging to group 3 include G90 and G91. Separately, there are modal commands such as S code and T code.

[Problems to be solved by the invention]

Even in the conventional numerical control device, when the memory operation and the MDI operation are independently performed, there is almost no trouble in the operation. However, in the actual operation of the numerical controller, the MDI operation may be performed by intervening in the normal memory operation, due to the previous setup and special circumstances that occurred during the operation.

However, since the programs stored in the memory are assumed to be continuously executed, there are the following problems in the conventional management of modal instructions.

(A) The modal command at the time of the intervention for performing the MDI operation is determined by the current modal command of the memory operation at the time of the intervention. Before performing the MDI operation, the operator needs to confirm the current valid modal command status and give a new modal command so that the intended operation is performed.

(B) The modal command after the intervention in the MDI operation is changed by the MDI operation. When the operation returns from the MDI operation to the memory operation, the memory operation cannot be continued correctly without changing the modal command that was valid in the normal MDI operation. To restart the memory operation properly, it is necessary to return to the modal command before the intervention in the MDI operation. In particular, MDI
When the operation by driving is completed, forgetting to return to the modal command before the start of the MDI operation, often hinders the memory operation.

The present invention has been made in view of such a point,
In order to prevent confusion between modal commands caused by switching between memory operation and MDI operation,
It is an object of the present invention to provide a modal command management system having means for separately managing by MDI operation.

[Means for solving the problem]

According to the present invention, in order to solve the above-described problems, in a modal command management method for managing a modal command used in automatic operation of a numerical controller, a memory operation and a
A first memory for storing a plurality of sets of modal commands for MDI (manual data input) operation, an operation selection circuit for selecting the memory operation and the MDI operation, and A switch for switching between any of the memory operation and the MDI operation stored in the first memory and the MDI operation, and outputs an NC instruction.
A modal command management system is provided, comprising: NC command output means; and a second memory for storing a modal command for operation sent from the first memory via the switch. .

[Action]

In the numerical controller, the MDI operation is performed by intervening in the memory operation. Modal command and MD for starting memory operation
Each modal command is separately stored and managed in the first memory so that the modal command when starting the I operation is appropriately used and not confused. When the memory operation is selected by the operation selection circuit, the first operation is performed by the switch.
Is sent to the second memory and used as an operation modal command. When a modal command is issued by a new NC command during operation, the modal command in the first memory is sequentially rewritten, and the rewritten modal command is stored in the second memory. Driving is performed.

When the MDI operation is selected by intervening in the memory operation, the MDI operation is stored in the first memory by the switch.
A modal command for the MDI operation is sent to the second memory, and the MDI operation is performed according to the modal command in the second memory.

As a result, when the operation is switched from the memory operation to the MDI operation, and conversely, when the operation is switched from the MDI operation to the memory operation, the modal instruction of the first memory which is separately managed is used. No more trouble.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual diagram of the present invention. Here, the G code will be described as an example of the modal command, and the G code will be referred to as GA, G
Display in B, G1a, etc. The initial G code GA is stored in the memory 6 as a parameter PA. The initial G code GA is a G code in an initial state in which nothing has been commanded after the power is turned on, is used for the first memory operation after the power is turned on, and is sent to the memory 1 when the power is turned on.

In response to a selection signal from the operation selection circuit 2, the switching unit 3
Is switched to the memory operation mode, the initial G code GA of the memory operation is stored in the memory 5, and the memory operation is started with the G code GA. The memory operation is continued by the NC command from the NC program 4a of the NC command output means 4, and when a new G code G1a is commanded by the NC command, the G code of the memory 1 is switched to G1a. The G code of No. 5 is also switched to G1a, and the memory operation is performed by the new G code G1a.

Here, after the memory operation is interrupted and when the memory operation is restarted, the updated G code G1a is used as the G code. In the same way, a new G code
When G2a is commanded and memory operation is interrupted or when memory operation is restarted, the G code is the updated G code
G2a will be used.

Thus, every time the memory operation is restarted, the G code stored in the memory 1 is sent to the memory 5, and the memory operation is performed by the G code in the memory 5. As a result, the G code during the memory operation is not affected even if the MDI operation is performed in the middle.

On the other hand, the MDI operation is performed by intervening in the memory operation due to previous setup or special circumstances that occurred during the operation. The G code GB, which is an initial modal command for starting the MDI operation, is stored in the memory 6 as a parameter PB as in the case of the memory operation. If the user does not want to use the G code GB, the user can set the G code GB from the MDI modal command setting screen 7.

In response to a selection signal from the operation selection circuit 2, the switching unit 3
Is switched to the MDI operation mode, the MDI operation is started using the G code GB which is the initial modal command of the MDI operation. The operation is continued by a command from the MDI input device 4b, and the G code is sequentially rewritten. MD in memory 5
The current G code of the I operation is stored and used only during the operation, and will not be used again later. The G code used each time the MDI operation is started uses the above-described initial G code GB in principle. In particular, when the G code at the time of memory operation interruption is used as it is,
By operating from the MDI modal command setting screen 7, a modal command for memory operation currently stored in the first memory 1 can be called and used. The MDI modal command setting screen will be described later.

Memory operation and MD as automatic operation of the numerical controller
Although I operation has been described, tape operation and DNC operation are handled in the same way as memory operation.

In the above description, the G code has been described as an example, but other modal commands such as F, S, and T codes are processed in exactly the same manner.

FIG. 2 is a schematic configuration diagram of hardware of a numerical controller for implementing the present invention. The processor 11 controls the entire numerical controller according to the system program stored in the RMO 12. EPROM or EEPROM is used for the ROM 12. The RAM 13 is an SRAM or the like, and stores various data or input / output signals. The nonvolatile memory 14 uses a battery-backed CMOS, and stores parameters to be retained even after power is turned off, a pitch error correction amount, a tool correction amount, and the like. The nonvolatile memory 14 has a memory 1 storing an initial modal command for the memory operation and the MDI operation or an updated modal command, a memory 5 storing a current modal command for the memory operation and the MDI operation, and a memory operation. A memory 6 in which an initial modal command of the MDI operation is stored as a parameter is also provided. Under the control of the processor 11, the initial modal command GA for the memory operation, the current modal command G1a → G2a → − which is sequentially rewritten in the memory operation, and the initial modal command GB for the MDI operation are controlled by the PMC 18 under the control of the processor 11.
It is used for controlling a machine tool 19 (described later) from a (described later).

The graphic control circuit 15 converts the digital signal into a signal for display and supplies the signal to the display 16. The display 16 uses a CRT or a liquid crystal display, and displays the position of each axis, the state of input / output signals, parameters, and the like. The operation panel 17 includes a keyboard and the like, and is used for inputting various data or operating the machine tool 19.

A PMC (programmable machine controller) 18 receives an output signal via a bus 20, processes the output signal with a sequence program, and controls a machine tool 19. Further, it receives an input signal from the machine side, performs processing by a sequence program,
To transfer the input signal.

These components are connected to each other by a bus 20.

In FIG. 2, components such as an axis control circuit, a servo amplifier, a servo motor, a spindle amplifier, and a spindle motor are omitted. Further, a multiprocessor system may be provided by using a plurality of processors.

FIG. 3 is a diagram showing an MDI modal command setting screen in one embodiment of the present invention. In the figure, the setting screen 7 includes
A column for setting a modal command for performing MDI operation and soft keys are prepared. Soft key 7a to set the initial modal command with parameter PB, soft key 7b to perform MDI input, soft key 7c to store the MDI input result as a parameter, modal command when memory operation is interrupted When the key is used continuously, the soft key 7d is pressed to set the initial modal command. In the example described on the setting screen 7, three G codes are displayed in the left column.
G01, G17, G91 and 100 after the address code of F in the upper right
Is described. This is done by pressing the soft key 7b to make MDI input and then performing key input from the operation panel. G01, G17, G9
Numerals 1 are arranged in the order of the group numbers to which the modal commands belong, and indicate the positioning, the selection of the XY plane, and the setting of the incremental dimension modal commands. Further, the numerical value 100 input after the address code F indicates the setting of the modal command with the feed speed set to 100.

As described above, the modal commands for the memory operation and the MDI operation are stored in the memory 1 and managed separately. The initial modal command is stored as a parameter in the memory 6 and separately transferred to the memory 1 to be used as a modal command when the power is turned on.

If you do not want to use the initial modal command during MDI operation, you can set a new one from the MDI modal command setting screen.

When the initial modal command is not set by the above parameters or by key operation from the MDI modal command setting screen, M
When the DI modal command is not set again, the current modal command used in the memory operation can be diverted and used continuously.

Also, the memory operation is performed after the MDI operation by setting the initial modal command by the parameter or by performing key operation from the MDI modal command setting screen,
When performing the MDI operation again, the modal command in the previous MDI operation can be used as it is.

〔The invention's effect〕

As described above, in the present invention, the mode of the modal command of the memory operation and the MDI operation of the numerical control device is separately managed, and the dedicated dull command is used for the memory operation and the MDI operation. Misuse of modal commands due to changes in driving is eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram of the present invention, FIG. 2 is a schematic configuration diagram of hardware of a numerical controller for implementing the present invention, and FIG. 3 is an embodiment of the present invention. It is a figure showing an MDI modal command setting screen. 1 ... memory 2 ... operation selection circuit 3 ... switch 4 ... NC command output means 4a ... NC program 4b ... MDI input device 5 ... memory 6 ... memory 7 ... setting screen 11 ... processor 12 ROM 13 RAM 14 Non-volatile memory 15 Graphic control circuit 16 Display 17 Operation panel 18 PMC 19 Machine tool 20 Bus

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Watanabe 3580 Kobaba, Oshino-za, Oshino-mura, Minamitsuru-gun, Yamanashi Pref.

Claims (5)

(57) [Claims] 1. A modal command management system for managing modal commands used in automatic operation of a numerical controller, comprising: a memory operation and an MDI (manual data input).
A first memory for storing a plurality of sets of modal instructions for operation, an operation selection circuit for selecting the memory operation and the MDI operation, and a first signal stored in the first memory according to a selection signal from the operation selection circuit. A switch for switching between any of the modal commands of the memory operation and the MDI operation; an NC command output means for outputting an NC command; and a modal command for the operation sent from the first memory via the switch. A modal command management system, comprising: 2. Memory operation and MDI set at power-on
2. The modal command management system according to claim 1, further comprising a third memory for storing an initial modal command for operation. Setting an initial modal command for the MDI operation;
2. A modal command management system according to claim 1, further comprising a modal command setting means for performing display. 4. If the initial modal commands for the memory operation and the MDI operation are not set when the power is turned on, the modal command used in the memory operation during the MDI operation is read and set as a modal command for the operation. 3. The modal command management system according to claim 2, wherein the system is configured as described above. 5. When the initial modal commands for the memory operation and the MDI operation are set when the power is turned on, the MDI operation is performed, the memory operation is performed, and the MDI operation is performed again when the MDI operation is performed again. 3. The modal command management system according to claim 2, wherein an initial modal command is used.