JPH01195505A - Numerical controller - Google Patents

Abstract

PURPOSE:To carry out the queuing of each system with a simplified queuing command by decoding the queuing command in a numerical controller at registration of a program and calculating and storing the queuing timing. CONSTITUTION:A generated program is received from an external input/output device 5 via an operating keyboard 2 or external interface 4 and stored in an address 3a of storage device 3. The stored program is immediately decoded by a processor 1 and the queuing timing of each system is calculated and stored in an address 3b of the storage device 3. When the execution of the program is command from outside, the processor 1 decodes the stored in both addresses 3a and 3b of the storage device 3 and performs the arithmetic operations for interpolation, correction, etc., for generation of the numerical information. Then the processor 1 gives the numerical information to a motion control unit 6 for control of the action of each axis.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in numerical control devices, and more particularly to a method for specifying a rendezvous command in a plurality of programs and a process for decoding the command.

[Conventional technology]

Conventionally, in numerical control devices that combine one or more control axes to form multiple control systems and control each axis according to a multi-system program, the waiting between each system is performed. If you want to use 10! programs for each system! m! l-; (
The method used was to specify a meeting using a command (where n, m, l-... are the system numbers for which you would like to make a meeting).

In other words, using FIG. 4 as an example, $1, $2, $3
After executing program block groups P11, P21, and P31, which are composed of one or multiple blocks with different execution times, in the three types of programs differentiated by
PI3, P22. If you want to run P32 at the same time, use the waiting symbol! , the system $2. which wants to meet in the previous block of PI3 in $1. Specify $3, (! 2! 3;) → ■P at $2
If you would like to meet at the block in front of 22, $1. $
3, (+17 3;) → O At $3, specify systems $1 and $2 for which you want to meet in the block before P32 (11! 2;) → ■.

Also, if you want to simultaneously execute PI3 and P33 after executing PI3 and P32 in the two systems $1 and $3,
Specify the system $3 that you want to meet in the block before PI3, (! 3;) → ■Specify the system $1 that you want to meet in the block before I'33. (!
1;) → ◎The waiting command is decoded during program execution, the waiting timing between each system is calculated, and the waiting between the specified systems is executed.

FIG. 5 is a time chart when the program shown in FIG. 4 is executed.

◎ and ■ are the waiting times of $1 and $3 until P12, P22, and P32 are executed simultaneously, [phase] is PI3. P3
It represents the waiting time of $3 until 3 are executed simultaneously.

[Problem to be solved by the invention]

Conventional numerical control devices are configured as described above, so you can designate the system you want to meet based on one system (for example, if you consider $1 as the standard! 2! 3) specification), the system for which the meeting was specified must also re-specify the meeting for other systems (in $2! 1! 3, in $3! 1! 2 specified), programming becomes complicated. Become,
Programmers are under a lot of pressure.

The reason why such a command system is required is that when executing the program, the program for each system is buffered several blocks at a time, and the wait specification is deciphered and executed. This is because the program does not have a function to calculate and store the meeting timing at the time of program registration.

The present invention was made in order to solve the above-mentioned problems, and it is possible to specify the waiting of each system using a simplified waiting command, and when the created program is registered, it is possible to specify the waiting between each system. It is an object of the present invention to provide a numerical control device that can calculate and store the waiting timing of each system (and thereby perform waiting between systems based on this result during program execution).

[Means to solve the problem]

The numerical control device according to the present invention can command a meeting using a meeting symbol and an arbitrary number, and by calculating and storing the meeting timing at the time of registering a program, each time is set based on this result when the program is executed. This makes it possible to meet up between systems.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a numerical control device showing one embodiment of the present invention, FIG. 2 is a block diagram of a program, and FIG. 3 is a conceptual diagram of a waiting table created inside the numerical control device.

In Figure 2, a waiting symbol and an arbitrary number are used to make a meeting between each system, and in the program for each system! A meeting is specified with the command n (n is an arbitrary number). However, overlapping of n within the same system is not allowed. In the present invention, the processor is provided with a program check function, so that if such a superimposed input is made after the program input is completed, an alarm is generated to make the programmer aware.

In addition, the meeting sign is! There is no problem in using other general codes such as PM code. Pll,
PI3, PI3, P21, P22, P31, P32, P
As explained in FIG. 4, 33 is a program block group consisting of one or multiple blocks having different execution times.

After executing pH, P21, P31, PI3, P22. P3
2 at the same time, use the block before the program blocks P12, P22, and P32 that you want to execute simultaneously! Specify 1 → ■■■ Also, if you want to execute PI3 and P33 at the same time after executing PI3 and P32, use the block before PI3゜P33! Specify 2.

→ ■■ The program created as described above is inputted from the external input/output device 5 via the operating keyboard 2 or external interface 4 and stored at the designated address 3a of the storage device 6, as shown in FIG.

Immediately after this program is stored in the designated address 63 of the storage device 30, it is decoded by the processor 1, the waiting timing between each system is calculated, and the program is stored in the designated address 6b of the storage device 3.

When commanded to execute a program from the outside, the processor 1 decodes the program for each system stored at the address 3a of the storage device B and the waiting timing data stored at the address 6b, and performs interpolation, correction, etc. The operation of each axis is controlled by giving this numerical information to the motion control unit B. At this time, address 3b of storage device B
Waiting between each system is executed based on the waiting timing stored in .

Figure 3 shows the designated address 6 of storage device B in Figure 1.
FIG. 3 is a conceptual diagram of different meeting timings stored in FIG.

The first meeting timing is PI3, P22. P3
It is taken in the first block of block group 2, and P is shown at $1 in the table.
12h, P22h is written to $2, and P32h is written to $3. → ■Here P12h, P22h%P32h
represent the numbers of the first blocks of P12, P22, and P32, respectively. Now, PI3, P22, and P32 can be executed simultaneously.

The second waiting timing is taken at the first block of PI3 and P33, P13h is placed on $1 of the table, and P3 is placed on $3 of the table.
3h is written.

→ ■ Here, P13h and P33h represent the numbers of the first blocks of P13 and P33, respectively. Now, PI3, P33
can be executed simultaneously.

Furthermore, if the numerical control device is equipped with a monitor screen,
This timing table can also be displayed and confirmed. Further, in the present invention, the address 3a% which is the first storage section
Although the address 6b, which is the second storage section, is provided in one storage device B, it goes without saying that it may be provided separately.

〔Effect of the invention〕

As described above, according to the present invention, when a program is registered, a waiting command is decoded within the numerical control device, and the waiting timing is calculated and stored (thereby, the waiting of each system is executed using a simplified waiting command). can do.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the numerical control device according to the present invention, Fig. 2 is a block diagram of a program used in the numerical control device according to the present invention, and Fig. 3 is a waiting timing created inside the numerical control device. Hong's conceptual diagram, Figure 4 is a block diagram of a program using conventional rendezvous commands,
FIG. 5 is a time chart when the programs shown in FIGS. 2 and 4 are executed. 1... Processor, 2... Operation keyboard (input means) 6...
...Storage device, 6a...First storage section, 3b...Second storage section. 4...External interface. 5...External input/output device. 6...Motion control unit. Figure 4 at 3'

Claims (1)

[Claims] One or more control axes among the plurality of control axes are combined to form a plurality of control systems, and the control system is created for each control system of the plurality of control systems, and has the function of coordinating operations with different control systems. In a numerical control device that controls the operation of each control axis according to a program having a waiting command to be issued, an input means for inputting the program, a first storage section for storing the program input by the input means, a processor having a function of calculating a waiting timing between the respective control systems based on a waiting command of the program stored in the first storage unit;
It has a second storage section that stores data on the waiting timing calculated by this processor, and an operation control section that controls the operation of the control axis, and when a start signal of the program is input from the outside, the second storage section stores data of the waiting timing calculated by the processor. The program stored in the first storage unit and the meeting timing data stored in the second storage unit are input to the processor and calculated, and the calculation result is input to the operation control unit. A numerical control device that controls the control axis.