JPH0388005A - Numerical controller - Google Patents

Abstract

PURPOSE:To increase the capacity of storage by comparing the character strings of a working program with that stored in a character string buffer prior to the storage of the working program in a storage means, coding the coincident character string and storing the coded result in the storage device. CONSTITUTION:At the time of receiving a working program reading command, a character string conversion means 11 inputs the command to a temporary storage area and then compares the character strings of the working program with that previously registered in the character string buffer 12 by an operator. When a coincident character string is found out, the character string is converted into an optional code obtained by compressing the character string. Since the operator can register plural number of characters in each character string and the plural number of character strings, the processing is repeated until the comparison of all the character strings is completed in order to compare and convert all the character strings. The working program whose conversion is completed is stored in the storage means 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a numerical control device, and particularly to an improvement in the format for storing machining programs.

[Prior Art] Conventionally, machining programs in numerical control devices (hereinafter referred to as NC devices) have been stored using storage means inside the NC devices.

Next, the role of the storage means will be explained through a description of the entire NC device.

FIG. 5 is a block diagram showing the main components and machines of a conventional NC of this type. In the figure, (1) is a numerical control section (hereinafter referred to as the control section), A connected machining program reading means reads the machining program stored in the program storage medium (3).

(4) is a storage means, (5) is a display unit control unit (hereinafter referred to as display unit I/F) for outputting various information to the display unit, and (7) is an operation unit, and Various operations are input to the control section (1) via an operation section control means (8) (hereinafter referred to as operation section I/F). (9) is a drive unit that controls the machine (10).

Next, the operation will be explained.

The machining program stored in the program storage medium (3) is read by the program reading means (2) and input to the control section (11).The control section C1 stores the machining program in the storage means (4). If the machining program needs to be modified, the data block contents of the machining program are displayed on the display section (6) via the display sections I and 'F (5).

Meanwhile, the operator (not shown) uses the display section (6) as described above.
), use the operation unit (7) to find the corresponding block from the contents of the data block of the machining program displayed in the program list and the operation unit I/F ( 8) to the control unit (1). and.

The control section (1) corrects the machining program stored in the storage means (4) based on the input correction data. The drive unit (9) amplifies the machine control signal output from the control unit (1) and drives the motor (not shown) provided in the machine (10) to obtain the desired product.
).

[The problem that the invention attempts to solve! ] Since the conventional NC device is configured as described above,
When storing the machining program in the storage means (4), the data of the machining program is written to the storage means without any particular processing, so the machining program may contain many of the same character strings or may be the same as other machining programs. It contains many character strings, and there was no way to efficiently store them.

Therefore, the storage capacity of the storage means (4) was quickly exceeded for the same character string.

This invention was made to efficiently use the storage means, and aims to shorten and store machining programs.

[Means to solve the problem]

The numerical control device according to the present invention includes a character string buffer in which a table of desired character strings in a machining program and corresponding reduction symbols is registered.

When storing a machining program in the storage means, refer to the table of the character string buffer, and if there is a character string of the machining program in the table, convert the character string of the machining program into a reduced symbol and store it in the storage means. This configuration includes a character string converting means for converting a character string.

[Operation] Before storing the machining program in the storage means, the character string conversion means of the machining program in the present invention compares the character string of the machining program with the character string stored in the character string buffer, and selects a matched character string. is encoded and stored in a storage means.

[Embodiment 1 of the invention Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, (1) to (lO) have the same functions as in FIG. (11) is a character string conversion means added in the present invention, and (12) is a character string buffer for registering character strings. Storage means for machining programs (
4), the character string that the operator has registered in the character string buffer (12) through the operation unit (7) is compared with the machining program in the character string conversion means (111), and the same character string that exists is compared with the machining program. The encoded machining program having the function of encoding is stored in the storage means (4).

FIG. 2 is a flowchart explaining the functions of the character string converting means (11).

A command to read the machining program (if stl is present, the machining program is read TS21.The machining program is not read directly into the storage means (4), but is read into the temporary storage area (not shown) of the character string conversion means fill. Chinoto.

After reading the machining program, 1 character string conversion means (I
ll is the string buffer (12) that the operator uses in advance.
Compare the character string registered in and the machining program (S3
), and if a matching character string is found in the machining program, convert the character string in the machining program into an arbitrary symbol reduced to a character string (S4).The arbitrary symbol is the character string in the machining program. It is also possible to use a character that does not exist as a character, such as the @ symbol, or to use a character that exists as a character in a processing program as a conversion character.

Since the number of characters and the number of character strings that can be registered by the operator are plural, the process is repeated until all character string comparisons are completed (S5) in order to compare and convert all character strings.

The converted machining program is stored in the storage means (4) (S61°, or when the machining program is retrieved from the storage means (4), it is stored in the character string conversion means (11).
1 performs an operation opposite to that described above.

FIG. 3 shows the state of the display section (6) when the operator registers a character string in the character string buffer (12) using the operation section (7) and the display section (6).

G1 is the symbol for -GQI'', and G2 is '''
GOOx 100. Zloo ; G28 XzT
- is symbolized, and these character strings are registered in the character string buffer (i2).

FIG. 4 shows the result of converting the machining program using the above character string.

Note that in the above embodiment, when the operator edits the machining program, the encoded machining program does not appear, but if the operator edits parameters etc. using symbols, the editing time can be shortened. Leads to.

[Effects of the Invention] As described above, according to the present invention, machining programs can be efficiently reduced and stored in the storage means, and as a result, more machining programs can be stored than before.

[Brief explanation of drawings]

FIGS. 1 to 4 are diagrams according to an embodiment of the present invention,
Fig. 1 is a diagram showing the overall configuration, Fig. 2 is a flowchart for explaining the operation, Fig. 3 is a diagram showing the display section during character string registration, and Fig. 4 is a diagram showing the effects of the conventional method and this invention. FIG. 5, which is a diagram for explaining the difference, is a configuration diagram showing the main components and machines of a conventional NC device. In the figure, (4) is a storage means, (11) is a character string conversion means, and (12) is a character string buffer. In addition, in FIG. 1, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a numerical control device comprising a storage means for storing a machining program, a character string buffer in which a table of desired character strings in the machining program and their corresponding reduction symbols is registered, and the machining program are stored in the storage means. and character string converting means that refers to the table of the character string buffer and, if there is a character string of the machining program in the table, converts the character string of the machining program into a reduced symbol and stores it in the storage means. Numerical control device.