JPS63163606A - System for generating nc program with fixed cycle function of automatic programming device - Google Patents

Abstract

PURPOSE:To generate an NC program with an arbitrary format even when the generating systems of the NC programs are different. CONSTITUTION:When a data corresponding to a process method and fixed cycle format and the data of fixed cycle are inputted to a data input part 1, those data are fixed cycle format in a fixed cycle generating format data 2000, and fixed cycle data format areas 2201, 2202,...220n in a data group 2200 of the fixed cycle format, via a fixed cycle generating data input means 10. Next, the fixed cycle format data corresponding to the process method of a tool locus data area is selected at the control part 1100 of a fixed cycle generating part in an NC program generating part 1000 by a switching signal SF. In such a way, it is possible to easily and rapidly respond to even a new NC machine tool only by setting the data which stipulates a program generating format of fixed cycle.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a method for creating a fixed cycle function NC program in an automatic programming device that creates an NC program for controlling an NC machine tool.

(Technical background of the invention and its problems) If an NC program for controlling an NG (numerical control) machine tool is created using an automatic programming device, complex machining can be commanded manually using simple machining data. Even when changing the machine, an automatic programming device can create an NC program that matches the command system of the changed NC machine tool. And the automatic programming device
If an NC machine tool can perform a fixed operation such as hole drilling as a fixed cycle function, then
Create an NC program using the machine tool's fixed cycle function. NC that commands this fixed cycle function
The format of the program is determined for each function type, such as trill cycle, tap cycle, etc. Following the G code that specifies the function type, the data specifying a series of machine operations is
It is configured by issuing commands in a predetermined order for each function type together with each code such as Y, I, J, etc. However, conventional automatic programming devices do not have a fixed cycle function.
In the method of creating a program, only one fixed cycle creation part or one type of NC program can be created, and when the target NC machine tool changes and the format of the fixed cycle NC program changes. However, it was not easy to deal with this problem without adding or changing the fixed cycle creation section.

FIG. 6 is a block diagram showing an example of such a conventional automatic programming device, in which an operator or the like inputs machining data specifying the type of machining using a data input unit consisting of a keyboard and a CRT. The data is recorded in the processed data area 3 via the processed data input means 2,
ρ is applied. Machining data area 3 in tool path data creation section 4
Tool trajectory data is created based on the machining data from , and the tool trajectory data is written in the tool trajectory data area 5 with ↑ and 0. On the other hand, operators etc. use the data human resources department 1 to
When the fixed cycle corresponding data is input manually, this corresponding data is stored in the processing method/fixed cycle corresponding data area 7 via the processing method/fixed cycle corresponding data input means 6.

Next, in the control unit 1100 of the fixed cycle creation unit in the NG program creation unit 1000, the tool path data area 5
The machining method SA in the tool path data area and the machining method/canned cycle corresponding data SB from the machining method/canned cycle corresponding data area 7 are successively retrieved and compared, and the canned cycle group 120
n fixed cycle creation units 1201 , 1 configuring 0
Among 202 and 12On, the fixed cycle generation section corresponding to the machining method of the tool path data area is selected by the switching signal SC. Then, an NC program is created by the tool path data SD from the tool path data area 5 in the NG program creation section 1300 for non-canned cycles and the selected canned cycle creation section in the canned cycle group 1200, and is stored in the NC program area 8. Memorized, paper tape, etc. 9
is output to.

In this way, in conventional automatic programming devices, each canned cycle generator can generate N of canned cycles in a certain format.
The drawback was that only C programs could be created.

(Object of the Invention) The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to enable an automatic programming device to create an NC program in an arbitrary format even when the creation method of the NC program is different. An object of the present invention is to provide a method for creating a fixed cycle function NC program in an automatic programming device, which enables easy expansion of target NC machine tools.

(Summary of the invention) - The invention relates to a method for creating a fixed cycle function NC program in an automatic programming device.
In an automatic programming device that creates an NC program for controlling a machine tool, a plurality of fixed cycle data are stored in advance so that they can be changed from the outside, and the stored data is stored in accordance with a specified machining method. The NC program can be created in any format by selecting one of the fixed cycle format data and comparing the tool trajectory data with the selected fixed cycle format data.

(Embodiment of the invention) Figure 1 is a block diagram of an apparatus for realizing the system of the present invention.
This is shown in correspondence with the figure, and in the tree invention, a new fixed cycle creation data input means 1O, a processing method/fixed cycle format corresponding data area 2100 in the fixed cycle creation format data 2000, and a fixed cycle format data group 22 are shown.
Fixed cycle format data area 2201, 220 in 00
2. ..., 22On and NG program creation section 10
A fixed cycle creation section 1400 in 00 is provided.

Here, when the operator etc. manually enters processing method/fixed cycle format corresponding data and fixed cycle format data in the data human power section 1, these data are converted into fixed cycle creation format data 2 via the fixed cycle creation data human power means IO.
Processing method/fixed cycle format compatible data area 2 within 000
100 and the fixed cycle format data area 2201.2202 in the fixed cycle format data group 2200.・” ,
22On in the format shown in FIGS. 2 and 3, respectively. Note that a detailed explanation of these data will be given later.

Next, in the control unit 1100 of the fixed cycle creation unit in the NG program creation unit 1000, from the tool path data area 5 to the machining method SA of the tool path data area and the machining method/fixed from the machining method/canned cycle format corresponding data area 2100. The cycle format compatible data SE is read out and collated, and n fixed cycle format data areas 2201, 2202 . ...-, 22O
Among n, fixed cycle format data corresponding to the machining method in the tool path data area is selected by the switching signal SF. Then, based on the tool trajectory data SD from the tool trajectory data area 5 and the previously selected fixed cycle format data, the fixed cycle creation unit 1400 creates an NG program. From the above, if you want to change the format of the fixed cycle NG program created by the fixed cycle creation unit 1400, conventionally the fixed cycle creation unit 1201 shown in FIG.
, 1202. ....However, in the present invention, it is possible to change the fixed cycle format data using the fixed cycle creation data manual means lO shown in FIG. Become.

Here, regarding the processing method/fixed cycle format compatible data and fixed cycle format data of the present invention, Figs.
This will be explained with reference to the figures.

The data corresponding to machining methods and fixed cycle formats in FIG. 2 are machining method types in the tool path data area indicated by machining methods A, B, . . . and format data 1.2. Fixed cycle format data numbers indicated by ... are registered in pairs, and are used to link fixed cycle format data corresponding to processing methods.

The fixed cycle format data shown in FIG.
It defines the format of the program. This fixed cycle format data is composed of cycle function code data and format data, and each data will be explained next.

First of all, an NG program consists of a series of letters, numbers, new line symbols, etc. Data consisting of a pair of letters such as G, X, J and the number following the letter is called a word, and a series of words is A block of data arranged in a specified order and separated by line feed symbols is called a block. The NG program that commands a fixed cycle consists of one block, and the format is determined for each function type of the fixed cycle. Generally, following the G code word that specifies the function type,
A word that specifies the position on the X axis of a certain process, YIiIl
The commands are given in the order of words that specify positions on the machine, and then the word groups that specify a series of machine operations are given in the order determined for each function type.

The cycle function code data according to the present invention is as follows.

It was provided to register the G code word that specifies the type of function, and any character string can be registered.

The format data in the present invention is provided for registering a group of words specifying a series of mechanical operations, and any format of the word group can be registered. This group of words consists of character 1.
2. ..., numerical value 1゜2, ..., attribute 1, 2. ...
It consists of data, and the characters to be output to the words of the NG program are registered as arbitrary character strings in the character data. Further, the numerical value to be output to the word of the NG program is determined from numerical data and attribute data, and the attribute data represents the attribute of the word.

There are roughly two types of attributes for this word. One is a type that refers to numerical data as a numerical value to be output to the word, and the other type is a type that refers to numerical data as a numerical value to be output to a word. This type refers to data.

The former type that refers to numerical data is fixed cycle N.
It is used when it is desired to output a constant word or code during a G program, and the latter type that refers to tool trajectory data is used for words that change command values based on tool trajectory data.

Next, with reference to the flowchart of FIG. 4, the operation of the newly installed portions subsequent to the fixed cycle creation data manual means 10 shown in FIG. 1 will be explained.

Through the fixed cycle creation data input means 10, the processing method/fixed cycle format corresponding data area 2100 or the
The control unit 1100 of the fixed cycle creation unit reads out the machining method/canned cycle format corresponding data and the machining method of the tool locus data area stored in the tool locus data area 5, and reads out the machining method/fixed cycle format corresponding data and the machining method of the tool locus data area stored in the tool locus data area 5. The number N of cycle format data is determined (step Sl). Then, the fixed cycle creation unit 1400 outputs the character string of the cycle function code data in the fixed cycle format data of this number N to the NC program area 8 (step S2), and also outputs the character string of the cycle function code data from the tool trajectory data area 5. Reads the machining position information (X, Y) and performs unit system processing,
An X command and an NG program for the X command are created and output to the NC program area 8 (step S3). Further, the fixed cycle creation unit 1400 sets the number of the word of the format data in the fixed cycle format data of number N to 1 by
Step S4), it is determined whether the data of the word numbered 1 (1) is valid or not (Step S5), and if it is not valid, the process is terminated. On the other hand, judgment step S5
If the data of the word number 1 (1) is valid, the character string of the number I (1) is output to the NC program area 8. In step S5), the attribute number '+] (1) is 1' whether the value refers to numerical values or tool path data (step S7)
, in the case of the type that refers to numerical values, the numerical value of number 1 (1) is output to the NC program area 8 (step 5
8). On the other hand, if the value of the attribute is of the type that refers to tool path data in judgment step S7, it is further determined which of the tool path data the attribute with the number I (1) refers to, and The data to be processed is read out from the tool path data area 5 where the data exists, subjected to unit system processing, and output to the NC program area (step 59). Next, 1 is added to the word number ■(1) of the format data (step 510), and it is determined whether or not the word with number I(2) exists (step 511), and if it does not exist, the process ends. do. On the other hand, if the word with the number ■(2) exists in the judgment step Sll, the process returns to step 55 and the process is repeated until there are no more words.

Next, a specific example of the processing of the fixed circle creating section 1400 in the present invention will be explained with reference to FIG.

Machining data IQQ in the tool trajectory data area shown in the same figure.
is stored in the tool path data area 5, and the tool path data 1
The fixed cycle format data 200 corresponding to the trill machining of the processing method W in 00 is the fixed cycle format data group 22.
It is stored in one area in 00. First, create cycle function code 1401 or fixed cycle format data 20
Character string r registered in cycle function code data within 0
Read G811SG and output to NC program area 8. Next, the X command and the X command creation 1402 are processed data 1.
The machining positions X (SX) and y (sy) within 00 are read out, combined with the characters X and Y, respectively, and the unit system processing 1403 converts the numerical values into numbers, and then outputs them to the NC program area 8. Also, character data determination 1411 in word data creation + 410 is the character l in the word with number 1.
ni'fIf 6! The character string rZJs11 read out is read out as a character, and on the other hand, the numerical data determination 1412 reads out the data SI of attribute 1 in the word numbered 1, and reads out the corresponding machining end position Z (SJ) from the tool path data 100. As a numerical value, unit system processing date 03 converts the numerical value into a number. Then, the characters and numbers are combined using word creation 14×3 and output to the NC program area 8. This operation is repeated until there are no more words left, and the data shown in the NC program area 8 is created.

(Effects of the Invention) As described above, according to the NC program creation method of the present invention, it is possible to easily and quickly adapt to new IC machine tools by simply setting the data that defines the fixed cycle NG program creation format. It is possible to significantly reduce the number of man-hours.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a device that implements the tree invention method, FIG. 2 is a diagram showing an example of processing method/fixed cycle format data, and FIG. 3 is a diagram showing an example of fixed cycle format data. FIG. 4 is a flowchart showing a partial processing example of the tree invention method, FIG. 5 is a block diagram showing details of the data flow of the present invention, and FIG. 6 is a block diagram showing an example of a conventional automatic programming device. l...data input section, 2...processing data manual means,
3... Machining data area, 4... Tool trajectory data creation section, 5... Tool trajectory data area, 8... NC program area, 9... Paper tape, etc., 10... Fixed cycle creation data Human power means, 1000... NC program creation section, l 100... Control section for fixed cycle creation section, 1300... NC program creation section other than fixed cycles, 1400... Fixed cycle creation section, 2000.
... Fixed cycle creation format data, 2100... Processing method/fixed cycle format compatible data area, 2200...
Fixed cycle format data group, 2201, 2202.・・・
・, 220 units...Fixed cycle format data.

Claims (1)

[Claims] In an automatic programming device that creates an NC program for controlling an NC machine tool, a plurality of canned cycle format data are stored in advance so that they can be changed from the outside, and the stored data is stored in accordance with a designated machining method. A fixed cycle in an automatic programming device, characterized in that the NC program is created in an arbitrary format by selecting one of the fixed cycle format data and comparing machining data with the selected fixed cycle format data. How to create a functional NC program.