JPH0827648B2 - NC part program generator - Google Patents

Description

The present invention relates to an NC part program generation device, and particularly, an NC part program generation suitable for facilitating the description of an NC part program for machining a complicated geometric shape. Regarding the device.

[Conventional technology]

Conventionally, as a numerical control (hereinafter referred to as "NC") part program generation device, as described in Japanese Patent Laid-Open No. 59-172008, NC language and high-level language such as BASIC language are simultaneously used for programming. , There is a way to generate an NC part program.

Also, as described in Japanese Patent Laid-Open No. 59-75307, there is a method in which a subprogram is created for each machining step and an NC part program is generated using this subprogram.

Further, in the method described in Japanese Patent Laid-Open No. 60-3008, a processing pattern is selected and processing data is input in accordance with a prompt statement prepared for the selected processing pattern (page 3, upper left column, lines 1 to 8). ), An NC program is created from this input data (page 3, upper right column, lines 15 to 18), and page 2 lower left column, lines 6 to 8 says, "This makes the operator NC It is possible to input in a general-purpose simple language (here, basic) instead of a code. "

[Problems to be solved by the invention]

In the method described in Japanese Patent Laid-Open No. 59-17008, training is required to describe a high-level language, and complicated programming in a high-level language is required even when performing simple geometrical shape calculation. Therefore, there is a problem that it takes a lot of time to describe the NC part program.

Also, in the latter method disclosed in Japanese Patent Laid-Open No. 59-75307, the part program can be described relatively easily in a unit of functional units by the multiple calling function of subprograms. However, since the subprogram has a geometry calculation capability that is lower than that in a high-level language,
There is a problem that it is not possible to calculate complicated geometric shapes.

Further, in the system described in JP-A-60-3008,
Each processing pattern was connected to the data input device
It is dedicated to the NC processing machine, the operator inputs data interactively using the processing pattern, and once input data can be applied only to the NC processing machine, it is not versatile. Further, when a new processing pattern is added, it is necessary to develop a program according to the newly added processing pattern, and there is a problem that the expandability is poor. In addition, since it can be applied only to existing programs and they can not be used in combination, when creating a new part program,
There is a problem that it takes a long time to create a new program, because all data must be programmed in order one by one.

Therefore, an object of the present invention is to enable an NC part program generation device to easily describe part program data, have general versatility, and create an NC part program for processing a complicated geometric shape. In addition, it is to make it easy to create a new program by using an already created program.

[Means for solving problems]

The above-mentioned purpose is described by the NC language and a simple language composed of a geometry definition statement including a point definition statement, a straight line definition statement, and a circle definition statement having a geometric shape calculation function, and a declaration statement including an operation statement having a four arithmetic operation function. The work area from which the specified part program data is read, and the part program data written in the NC language and simple language that is read into this work area are decoded, and based on the decoding result, geometric shape calculation and four arithmetic operations are executed. A part program data decoding unit that calculates numerical values used for numerical control while controlling the order of execution of part programs, a machine information storage unit that stores information specific to NC machines, and numerical values calculated by the above part program data decoding unit And the target NC based on the information unique to the NC machine stored in the machine information storage section
An NC part program generation unit for generating an NC part program in an NC language suitable for a machine, and a prepared part program storage unit for storing a prepared part program are provided. The part program decoding unit has a function, reads the created part program from the created part program storage unit based on the part program execution control function in the part program data, and reads the created part program. Decode and execute the created part program,
The NC part program generation unit is achieved by an NC part program generation device characterized by enabling creation of a newly created part program based on an already created part program decoded and executed by the part program decoding unit. .

[Action]

In the present invention configured as described above, the NC part program is automatically created by describing the part program data in the NC language and the simple language and inputting the part program data into the reading means. Here, since a simple language is different from a high-level language such as basic, it is easy to describe when creating a part program.

Also, by using a simple language in combination with the NC language, a program for machining a three-dimensional shape can be created, and a simple language that has a geometric shape calculation function and a four arithmetic operation function is used. Process
NC part program can be generated.

Further, since information unique to the NC machine is stored in the machine information storage unit, it is possible to use the same part program for multiple NC machines with different specifications by changing the information as appropriate.
An NC part program can be generated and a highly versatile device can be obtained.

Further, by using the already-created part program stored in the already-created part program storage unit, a new part program can be easily created in a short time.

〔Example〕

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

In FIG. 1, reference numeral 1 denotes the entire NC part program generation device of the present invention. The NC part program generation device 1 inputs the part program data 2 described in NC language and simple language. , NC according to the prescribed procedure
Generate a part program and output NC tape information 3. The NC tape information 3 is input to the NC machine 4 by using a tape as a medium or by data transmission. The simplified language used to describe the part program data 2 together with the NC language has a geometrical shape function, four arithmetic operations function, part program execution control function, etc., as described later.

The NC part program generation device 1 includes a created part program storage unit 10, an input data storage unit 11, a work area 12, a part program data decoding unit 13, a machine information storage unit 14, and an NC part program generation unit 15. It consists of

The part program data 2 is read in the work area 12, and the part program data decoding unit 13 sets the part program data 2 read in this work area 1 to 1
Decode each sentence. And the part program data decoding section
Based on the result of the decoding, 13 calculates the numerical value to be used for numerical control while executing the geometrical shape calculation and the four arithmetic operations and controlling the part program execution order. Further, the part program decoding unit 13 reads the created part program from the corresponding created part program storage unit 10 into the work area 12 in response to the request of the inputted part program data 2 for the part program, and decodes and executes it. At the same time, the input data required for calculation is read from the input data storage unit 11 to the work area 12.

The NC part program generation unit 15 generates an NC part program using the numerical values calculated by the part program decoding unit 13 and stored in the work area 12. At this time
The NC part program generation unit 15 reads the information specific to the NC machine stored in the machine information storage unit 14, changes the address of the NC part program, etc., and creates the NC tape information 3 suitable for the target NC machine. To do.

The part program data 2 is described in the NC language and the simple language as described above.
As shown in the "major item" column in FIG. 2, it is composed of a function definition statement, a declaration statement, an execution control statement, a geometry definition statement, and an input / output statement. The major item “NC sentence” corresponds to the NC language.

The function definition statement of the simple language consists of a tape header label statement, a processing surface specification statement, a sequence No setting statement, and a debug statement, as shown in the “Sub-item” column. The declaration statement is an array declaration statement and an operation statement. Statement and the execution control statement is GOTO
Statements, IF statements, CALL statements, MACRO statements, and END statements, geometric definition statements consist of point definition statements, line definition statements, and circle definition statements, and input / output statements include message output statements, SPACE output statements, and R
It consists of an EAD sentence. Each sentence of these small items has the function shown in the "function" column.

In this way, the simple language used with the NC language has various functions, and in particular, it is possible to calculate an arbitrary geometric shape by the functions of the point definition statement, the straight line definition statement, and the circle definition statement of the geometry definition statement. The four arithmetic operations can be performed by the function of the operation statement of the declaration statement. That is, this simple language has a geometric shape calculation function and a four arithmetic operation function, so that even a part program for processing a complicated geometric shape can be described.

The concrete contents of the point definition sentence, the straight line definition sentence, and the circle definition sentence in the geometric definition sentence of this simple language are as shown in FIGS. 3, 4, and 5, respectively. By using this geometric definition statement, not only is it possible to calculate an arbitrary geometric shape, but also by using the function of extracting the X coordinate value, Y coordinate value, radius value, etc. of the geometric shape calculation result, the calculated value can be calculated. Can be treated as a variable and can be set as the movement amount of the NC command.

The operation sentence in the simple language can be defined by a usual mathematical method.

Next, the operation of the NC part program generator 1 will be described with reference to the flowchart shown in FIG. The processing procedure of this flowchart is stored in the part program decoding unit 13 in advance.

First, in step 21, all the input part program data 2 are read into the work area 12. Next, in step 22, from work area 12 to part program 1
The sentence is taken out, the type of the sentence is determined in step 23, and the grammar of the sentence is checked in step 24. Next, according to the determination results from step 25 to step 30, sentence execution processing is performed.
If the execution control statement is determined in step 25, step 31
And execute the execution control statement execution process to control the execution of the part program such as GOTO statement, IF statement, CALL statement, and
If it is determined in 26 that it is a function definition statement, the process proceeds to step 32, where the function definition statement execution process that specifies the machining surface is performed, and if it is determined in step 27 that it is a declaration statement, the process proceeds to step 33 and the array declaration. , Performs a declarative statement execution process for processing four arithmetic operations, etc., and proceeds to step 34 if step 28 is determined to be a definition statement, and performs a geometric definition statement execution process for processing shape definitions of points, straight lines, and circles. If it is determined to be an NC sentence in step 29, the process proceeds to step 35, the NC sentence execution process for creating an NC sentence is performed, and if it is determined to be an input / output sentence in step 30, the process proceeds to step 36, and externally. Input / output statement execution processing that processes reading of input data of

Finally, in step 37, it is determined whether or not the part program is completed, and if it is not completed, the process returns to step 22 and the above process is repeated.

The contents of the execution control statement execution process performed in step 31 will be described with reference to FIGS. 7 and 8.

FIG. 7 is a flow chart showing the flow of execution control statement execution processing, and FIG. 8 is a diagram showing an example of a part program using multiple calls.

When the CALL statement which is the execution control statement for calling the subpart program A is decoded with the statement No I of the main part program M included in the part program data 2 shown in FIG. In step 41 shown in the figure, it is determined as a CALL statement, and in step 51, the part program name M and the statement No I + 1 to be executed next are stacked 100
And the stack pointer 101 is set to M (upper left in FIG. 8). Next, in step 52, the variable data being calculated is saved in the work area 12, and in step 53, the subpart program A is searched from the created part program storage unit 10, and the subpart program A is stored in the work area 12.
, And the statement number to be executed next is set at the beginning of the subpart program A, and the parameters are passed from the main part program M.

When the CALL statement that calls the subpart program B is decoded by the statement No J of the subpart program A, the execution control statement execution processing executes the processing from step 51 to step 53 in the same manner as above. As a result, the part program name A and the sentence No J + 1 are set in the stack 100, and the stack pointer 101 is set to A. (Eighth
(Upper right in the figure) Next, at the end of the subpart program B, when the END statement, which is the execution control statement indicating the end of the part program, is decoded, in the execution control statement execution process, it is determined to be the END statement at step 42, and the stack 100 at step 61. Determines if is empty. In this case, since data is set in the stack 100, the part program name A at the top of the stack 100 and the statement No J + 1 to be executed next are taken out from the stack 100 in step 62, and the stack pointer 101 is set to M. Set (bottom right of Fig. 8). In step 63, the variable data is returned from the work area 12, and in step 64, the subpart program A is searched from the created part program storage unit 10, and the subpart program A is set in the work area 12.
And the statement number to be executed next is set to J + 1.

Similarly, when the END statement is decoded at the end of the subpart program A, the processing from step 62 to step 64 is executed, the statement No I + 1 of the main part program M is set as the statement No to be executed next, and the stack 100 is set. Empty (bottom left of Fig. 8). Finally, the main part program M
When the END statement is decoded at the end of the step, the stack is determined to be empty in step 61, so the part program end processing is executed in step 65.

In the above description, the case in which the calling depth of the part program is 2 has been described, but according to the present invention, the calling of the subpart program can be executed to an arbitrary depth by the same processing procedure.

Next, if it is determined in step 43 that the sentence is a GOTO sentence, then in step 71, the sentence No. for which the destination label is set is searched, and in step 72 the sentence No. to be executed next is set in the sentence No.
If it is judged as an IF statement in step 44, IF is judged in step 81.
The sentence is determined, and in step 82, the sentence number for which the jump destination label is set is searched based on the determination result, and in step 83, the sentence number to be executed next is set to the sentence number.

Based on the above procedure, the input part program data is decoded, and by processing according to the decoding result, an NC part program for the NC machine consisting only of the NC language can be generated.

In the above-described embodiment, the created part program storage unit 10 may include user macros and NC subpart programs.

Therefore, in the NC part program generation device of the present embodiment, since a simple language having a geometric shape calculation function and four arithmetic operations functions can be added to the NC language and used,
It is possible to create a part program for machining a complicated geometric shape, easily describe the part program, and reduce the man-hours for creating the NC part program.

The simple language also has a part program execution control function, so it is possible to call multiple part programs with variables as parameters, and by dividing the part program into sub-part programs of small functional units and storing them. , A newly created part program can be created by simply calling a combination of already created part programs, or a part of it can be used to create a new part program, significantly reducing the number of steps required to create a new part program. can do.

Further, by storing the created part program in the created part program storage unit in this way, it is possible to accumulate technology.

〔The invention's effect〕

As is apparent from the above, in the part program generation device of the present invention, since it is possible to describe a part program in the NC language and a simple language having at least a geometric shape calculation function and four arithmetic operations functions, it is possible to complicate a complicated geometric shape. It is possible to create a part program for machining, and it is easy to describe the part program, and the man-hours for creating the NC part program can be greatly reduced.

Furthermore, since a simple language is used by adding it to the NC language, 3
It is possible to generate an NC part program that processes complicated shapes of dimensions. Furthermore, in the machine information storage unit,
Since information unique to the NC machine can be stored, it is possible to generate NC part programs for a plurality of NC machines having different specifications by using the same part program by changing the information as appropriate. In addition, by using the created part program stored in the created part program storage unit,
A new part program can be easily created in a short time.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of an NC part program generation device according to a position embodiment of the present invention, FIG. 2 is an explanatory diagram showing specifications of a simplified language used in the present invention, and FIG.
FIG. 4 is an explanatory diagram showing a definition method and a function of a point definition sentence in the geometric definition sentence of the simplified language, and FIG. 4 is an explanatory diagram showing a definition method and a function of a straight line definition sentence in the geometric definition sentence. FIG. 5 is an explanatory view showing the function of the method of defining a circle definition statement in the same geometry definition statement, and FIG. 6 is a flowchart showing the processing procedure performed by the part program data decoding unit of the NC part program generation device. FIG. 7 is a flowchart showing the contents of the processing procedure of the execution control statement execution processing in the flowchart, and FIG. 8 is an explanatory view showing multiple invocation of part programs in the execution control statement execution processing. In the figure, reference numeral 1 ... NC part program generator, 2 ...
Part program data, 12 ... work area (reading means), 13 ... part program data decoding section (decoding means), 15 ... NC part program generation section (generation means)

Front Page Continuation (72) Inventor Takashi Obiga 3-1-1, Saiwaicho, Hitachi City, Ibaraki Hitachi Ltd. Hitachi factory (72) Inventor Kazuhiro Igarashi 3-1-1, Saiwaicho, Hitachi City, Ibaraki Hitachi, Ltd., Hitachi Works (56) References JP-A-60-3008 (JP, A) JP-A-59-172008 (JP, A)

Claims (1)

[Claims] 1. A simple language composed of an NC language and a geometric definition statement having a geometric definition function, a point definition statement, a straight line definition statement, and a circle definition statement, and a declaration statement having an arithmetic statement function having four arithmetic operations. The work area (12) from which the written part program data is read, and the part program data written in NC language and simple language read in this work area (12) are decoded,
Based on the decoding result, the part program data decoding part (13) that calculates the numerical value used for numerical control while storing geometric information and four arithmetic operations and controlling the part program execution order, and stores information unique to the NC machine Machine information storage unit (14), the numerical value calculated by the part program data decoding unit (13) and the machine information storage unit (14)
Adapted to the target NC machine based on information specific to the NC machine
An NC part program generation unit (15) for generating an NC part program in the NC language and an already-created part program storage unit (10) for storing an already-created part program are provided. The part program decoding section (13) has an execution control function, and the part program decoding section (13) is based on the part program execution control function in the part program data, and the created part program storage section (10).
The above-mentioned created part program is read from and the read created part program is decoded and executed, and the NC part program generation unit (15) is created and executed by the part program decoding unit (13). An NC part program generation device capable of creating a newly created part program based on a part program.