JPH04275854A - Set-up data managing method for nc machine tool - Google Patents

Abstract

PURPOSE:To easily modify initial set-up data and add other data to the set-up data by automatically making the set-up data required for the preparation before the machining by means of an NC machine tool, integrating the data in the machining program and displaying the data on a CRT. CONSTITUTION:After making an NC program based on the drawing using an interactive automatic programming function, set-up data are extracted from this machining program, being added to the end of the machining program in the form of a note. In setting-up, the machining program is automatically analyzed by a set-up data analyzing circuit being displayed on a CRT. When other data are added to the set-up data or the set-up data are modified on the CRT, the above note is rewritten when operation is completed.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention applies to NC machine tools.
The present invention relates to a method of incorporating data necessary for setup, which is preparatory work for machining, into the machining program itself to facilitate the management of setup data.

0002

2. Description of the Related Art When machining is performed using an NC machine tool, it is necessary to prepare setup data necessary for preparatory work for machining, in addition to a machining program that describes machining data for a workpiece. This setup data is the amount of correction corresponding to the tool, jig, tool shape, etc. used in the machining program, and based on this setup data, the automatic tool changer (
Preparatory work is being carried out such as arranging the tools to be used in the ATC tool magazine, installing the jigs to be used on the table, and registering the correction amount in the tool correction data memory of the NC machine tool in correspondence with the tool number. .

[0003] Conventionally, this setup data has been prepared using notes, photographs,
It was created in the form of paper strips such as sketches, and saved separately from the processing program. This setup data is changed at the same time when the machining program is revised after the workpiece is actually machined, or when the design is changed, and multiple setup data are often created together with the machining program for one workpiece. .

0004

[Problem to be Solved by the Invention] When setup data is stored in the form of a piece of paper such as a memo, the recording medium is different from that of a processing program that is recorded on a paper tape, floppy disk, etc., so it is difficult to manage it all at once. , and are stored in separate locations. When the user attempts to use the processing program at a later date, it takes time to search for the memo, etc., and if the memo or the like is lost, the processing may not be possible even if the processing program remains.

Therefore, the present invention automatically creates setup data, includes it integrally in the machining program, allows it to be displayed on the CRT display of the control panel of the NC machine tool, and allows for easy changes and additions from the keyboard. The purpose is to make it possible.

[0006]

[Means for Solving the Problems] The present invention is an NC machine tool that reads NC commands of a machining program and performs cutting processing. A setup data management method is provided, which is characterized in that it is included in a machining program in the form of command annotations and is integrally stored and saved.

This setup data can be created by having the automatic programming function section of the NC machine tool automatically extract it from the machining program source when creating the machining program.

In order to utilize this setup data, a setup data analysis circuit is provided in the NC machine tool, and the CR of the operation panel is
In order to display data on the T-display arbitrarily and to respond to changes in the contents, a setup data change circuit is installed in the NC machine tool, and additions, corrections, and changes can be made from the keyboard of the operation panel.
It is possible to perform deletion.

[0009]

[Operation] When creating a machining program through dialogue, the interactive automatic programming function extracts setup data from data input based on drawings, etc., and adds it to the machining program in the form of annotations. Therefore, it is no longer necessary to create setup data, and if the machining program is saved, the setup data is simultaneously saved integrally.

When this machining program is stored in the machining program memory of the NC machine tool and the setup screen is displayed,
The setup data analysis circuit extracts the setup data and displays it on the CRT.
Display on the display. Based on this, the setup work can proceed.

When adding or modifying setup data, the display is changed using the keyboard, and when the operation is completed, the setup data changing circuit automatically rewrites the annotation text.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the overall system configuration of the present invention. In this figure, 1 is the control signal inside the NC machine tool.
Bus line for sending and receiving data, 2 and 3 are CRT display and keyboard of the control panel of the machine, 4 is C
This is an interactive automatic program function section controlled by the PU5. 6 is a setup data analysis circuit, and 7 is a setup data change circuit, each of which is controlled by the CPU 8. 9 is a machining program memory, 10 is a setup data storage memory,
11 is a machining program created including setup data.

The functions of the above configuration will be briefly explained. First, using the interactive automatic program function unit 4, data necessary for machining is input from the keyboard 3 while viewing the display on the CRT display 2, based on the machining drawings provided by the designer. The interactive automatic programming function unit 4 creates machining data, which is the original content of the NC machining program, from the input drawing data, and at the same time creates setup data in the form of annotations. Then, both are integrated as one machining program 11 and stored in the machining program memory 9.

The setup data analysis circuit 6 analyzes the machining program 11, extracts setup data, and stores it in the setup data storage memory 10. This memory content is C
It is displayed on the RT display 2, and you can make preparations by looking at this display (preparation work for tools and jigs to be used before NC processing, etc.)
It can be performed.

[0015] This setup data can be added or modified as desired during the setup operation. That is, when the contents of additions and corrections are entered into the setup data storage memory 10 using the keyboard 3, this is confirmed on the display on the CRT display 2, and a completion instruction is given using the keyboard 3, the setup data change circuit 7 The contents of the setup data portion of the machining program in the program memory 9 are rewritten.

The functions of each component will be explained in detail below. FIG. 2 is a flowchart illustrating the functions of the interactive automatic programming function section 4, which automatically creates a machining program 11 including setup data such as tools to be used and estimated machining time from data input using the keyboard 3 based on the machining drawing. , a processing procedure up to storage in the machining program memory 9 of the NC machine tool is shown. The data to be entered is
The data is temporarily stored in the dialogue source data storage memory 12 of the functional unit 4. This data includes initial setting data that determines the workpiece coordinate system to be used, machining definitions that specify machining methods such as milling, machining position definitions that determine machining range and dimensions,
These include tool data to specify the tool to be used, data to specify the subprogram to be used, and estimated machining time. After the NC machining data is created, necessary data is extracted from the setup data and added in the form of annotations after the NC machining program. An example of this setup data is shown in FIG. 3, and its contents will be explained below.

The setup data is written after the machining program in the form of comments with line numbers starting with P. P1
is used to specify a tool, and in this example, P101 is specified at the beginning.
Three pieces of tool data starting with line numbers ~P103 are described. In the symbols for this part, T1 to T3 are tool numbers, which are assigned in order of use in the machining program, starting from T1. H1 to H3 are height correction numbers. 3 D's
O is the tool diameter correction number, and three types of data can be written for one tool. 0 is an unregistered state. N...... is an abbreviation of tool diameter, and K...... is tool diameter. B
0 and B1 are necessary data when storing in a magazine by distinguishing between large diameter and small diameter. M... is the material, and the :... part is auxiliary and describes the number of blades, tap pitch, etc. P2 and P3 indicate subprogram numbers, P5 indicates estimated machining time, and P10 indicates actual machining time. P2/… and P3
/... is a line that describes the subprogram number used in this machining program, 14 is the number, and 0 is an unused state. P4/... indicates the number and code of the workpiece coordinate system to be used, P5/... describes the estimated machining time, and P10/... describes the actual machining time. The lines P6/ to P9/ are unused portions, and can be used by defining them.

FIG. 4 is a flowchart illustrating the creation and processing of setup data in the interactive automatic programming function unit 4. The used tool data is extracted from a used tool list created in the interaction source data storage memory 12. At this time, if the same tool is used in a plurality of processes, it is combined into one used tool, and the tools are created in the order of T1, T2, . . . in the order of the used tools. If the same tool is used with different compensation numbers in each process, they are
It is summarized into one used tool data. The case where the correction numbers are different is, for example, when the tool diameter is set smaller than the actual diameter to increase the amount of penetration during rough cutting, and when the tool diameter is set larger than the actual diameter and the amount of penetration is reduced during finishing.

The work coordinate system to be used, the subprogram number, etc. have already been input when inputting the source data through dialogue. Further, as the estimated machining time, the machining time determined by the interactive automatic programming function section 4 is output. These extracted data are once set in the setup data file, and then output in the form of annotations to the machining program memory 10 following the end of the machining program. Note that the annotations include internal codes (for example, tool names such as "end mill" are N1, N
2,...).

As described above, when a machining program to which setup data is added is stored in the machining program memory 10 (immediately after the machining program is created, and when an already created machining program is called into the memory).
It becomes possible to display setup data and perform add/update setup operations.

To display the setup data, the setup data analysis circuit 6 analyzes and extracts the setup data from the machining program 11 in the machining program memory 9, and stores it in the setup data storage memory 10 (memory for displaying setup screen). carried out by This setup data analysis process is performed on the setup data operation screen 13 as shown in FIG. 6 by selecting the menu on the CRT display 2 of the control panel.
is displayed, and the procedure shown in FIG. 5 is performed.

Analysis activation key 14 (shown is
The screen display showing the contents of the function key below) is pressed to start the analysis. This is the machining program 1
Reads blocks (one line) at a time, and collects tool data (compensation amount related to the tool used, etc.) and workpiece data (coordinate system used,
Only setup data (other than tool data such as tools used) are extracted and stored in the setup data storage memory 10. After reading the last line of the machining program,
The setup data stored in the memory 10 as an internal code is converted into characters and displayed on the CRT display 2 in the format shown in FIG. 6 or 7, for example.

Note that the setup data in the machining program may be created by humans, so check the format and confirm the existence of both work data and tool data.If the data is incorrect, an alarm will be displayed and the analysis will be performed. I am trying to cancel the process.

FIG. 6 shows a screen showing the start of analysis and the analysis results of workpiece data. In this display, 15 is the number of the selected machining program, 16 is the workpiece data,
As work data, estimated machining time, workpiece coordinates used, jig number used (JIGNO0008.1003), and subprogram number used are displayed. The [Work Data] field contains an unused blank space (
), where you can write arbitrary data such as the presser foot.

FIG. 7 is displayed when tool data display is selected from the menu, and the tools used are displayed in a list in the order of use.

Preparation work can be carried out by looking at the displays shown in FIGS. 6 and 7 (print output can also be obtained if necessary). When this display is displayed, move the cursor to the corresponding data display field on the screen and enter information using the keyboard to add, change, or change the displayed content.
Can be deleted. The target of this addition/change is, for example, Figure 6.
In the work data operation screen shown in FIG. 7, data on the jig used and comments are shown, and in the tool data shown in FIG. 7, correction amounts, assistance, etc. are shown. This changes the contents stored in the setup data storage memory 10, and the actual change of setup data is performed by pressing the change completion key 17 and operating the setup data changing circuit 7 shown in FIG. This operation is performed by the machining program memory 9 as shown in the processing flow shown in FIG.
The contents stored in the setup data storage memory 10 are replaced with the contents stored in the setup data storage memory 10.

[0027]

According to the present invention, the machining program and the setup data can be handled as one data, so by storing only the machining program, the machining program and the setup data can be easily managed all at once. As a result, the trouble of storing setup data and accidents of losing setup data are eliminated.
Productivity can be improved.

In particular, since the interactive automatic programming function section automatically creates the setup data, it is possible to eliminate the trouble and errors in conventional manual creation work, thereby improving work efficiency and reliability. Can be done.

Furthermore, the setup data of the present invention can be added or modified as desired from the CRT display of the control panel.
It is possible to easily and quickly respond to changes in work content during actual machining.

[Brief explanation of the drawing]

FIG. 1: NC that implements the setup data management method of the present invention
It is a system configuration diagram of a machine tool.

FIG. 2 is a flowchart showing an overview of processing data and setup data creation processing by the interactive automatic program function unit.

FIG. 3 is a program list showing an example of setup data added to the end of a machining program.

FIG. 4 is a flowchart showing a specific example of setup data creation processing in the interactive automatic programming function unit.

FIG. 5 is a processing flow diagram of a setup data analysis circuit.

FIG. 6 is a diagram showing a setup operation screen on a CRT display that displays work data.

FIG. 7 is a diagram showing a CRT display-like setup operation screen that displays tool data.

FIG. 8 is a diagram showing a processing flow of a setup data change circuit.

[Explanation of symbols]

2 CRT display 3 Keyboard 4 Interactive automatic program function unit 6 Setup data analysis circuit 7 Setup data change circuit 9 Machining program memory 10 Setup data storage memory (memory for displaying setup screen)

Claims (3)

[Claims] [Claim 1] In an NC machine tool that reads NC commands of a machining program and performs cutting, setup data such as tools, jigs, and correction amounts necessary for machining are stored in N.
A setup data management method characterized by including it in a machining program and integrally storing and saving it in the form of annotations of C commands. 2. The setup data management method according to claim 1, wherein the setup data is automatically extracted and generated from the machining program source by an automatic programming function section of the NC machine tool when creating the machining program. 3. Arbitrarily displaying the setup data on a CRT display of the operation panel using a setup data analysis circuit provided in the NC machine tool, and using a setup data changing circuit provided in the NC machine tool, 2. The setup data management method according to claim 1, wherein addition, modification, and deletion can be performed from a keyboard on an operation panel.