JPS62160506A - Correcting method for program of numerical controller - Google Patents

Abstract

PURPOSE:To facilitate correcting a working program by storing preliminarily countermeasures for problem resolution formed with an alarm list of the program detected by a numerical control device. CONSTITUTION:A memory where working programs are stored subjects working programs of NC devices read by a read processing part 2 to alarm discrimination by a subprocessing part 3 and transfers only wrong programs to a main processing part 4 to discriminate alarms. Data files 7 corresponding to these alarms are found in an alarm register part 5 by an alarm number search part 6. Data of countermeasures against alarm number causes, namely, FTA are preliminarily stored in data files 7 and are processed by a read processing part 8, and processing data are sent to the main processing part 4. Thereafter, data are transferred from the main processing part 4 to a CRT 9, and the operation of questions and answers are performed among a keyboard 10, the CRT 9, and the main processing part 4, and programs are corrected, and normal programs are stored.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention is a numerical control device that can correct everything from the occurrence of defects in machining programs to countermeasures on the same CRT screen.
The present invention relates to a program correction method for an NC device (hereinafter abbreviated as an NC device).

[Conventional technology]

Figure 4 shows the operating procedure when correcting a conventional NC device machining program. When an alarm occurs in the NC device, the operator examines each manual or related materials to estimate the cause and possible countermeasures. . However, this requires a mode switching operation. FIG. 5 shows a conventional CRT screen for confirming alarm numbers and contents.

Next, the operation will be explained. First, the flowchart shown in FIG. 4 shows the correction procedure of a machining program in a conventional NC device.
15) Check the program (ST-17) to see if there is an alarm? If there is no content, the next program contents are all selected and executed (ST-16), but if there are, the alarm processing section displays the alarm number and message on the CRT as shown in Figure 5 (ST-16). -23) This was to be taught to operators. Therefore, it was difficult to fully understand the cause even after watching the message meeting. In addition, in response to this alarm, the operator should check the program (S
As shown in T-25), the cause and countermeasures were determined by referring to all related materials, and corrections were made using the editing function.

It is necessary for the operator to repeatedly perform such operations until all program alarms are terminated, and therefore, a certain degree of experience is required to perform corrective operations for the causes.

All operations in (ST-24 to 27) are the work of the operator, and all program corrections are performed in (ST-13 to 2).
7) must be performed every time.

[Problem that the invention seeks to solve]

The conventional program correction method for numerical control equipment is performed as described above, so it is necessary to check various materials and read meters before the cause and countermeasures are completed, and it takes a lot of time to complete the correction. There were problems in that operations such as mode switching were required and were very complicated.

This invention was made in order to solve the above-mentioned problems, and it is possible to make corrections through Q&A in an interactive manner with a CRT, and to avoid burdening the user when correcting a program. The present invention also aims to provide a program correction method for a numerical control device that can shorten the time required to correct a machining program.

[Means to solve all problems]

A program correction method for a numerical control device according to the present invention includes:
You can proceed from alarm generation to correction on the same screen using CRT, and you can also see causes and countermeasures.
' A (Fault Tree Analysis
), it is possible to have a Q&A session in an interactive format by pre-memorizing the questions.

[Effect]

The question-and-answer function in this invention is a problem solving countermeasure (PTA) formed by the alarm list of the machining program detected by the numerical control device. All corrections can be made.

[Beak example]

An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a memory, 2 is a reading processing section, and a sub-processing section 3
It is connected to the. 4 is a main processing section, 5 is an alarm registration section that stores the data file 7, 6 is an alarm number search section, 8 is a reading processing section, 9 is a CRT, and 10 is a key M
-)-111 is an editing processing section, and 12 is a driving section. 9, 30 is the NC device main body.

Next, the operation of this invention will be explained. First, the memory 1 that stores the machining program is read by the reading processing section 2.
The processing program of the C device is judged as an alarm by the sub-processing section 3, only the malicious program is transferred to the main processing section 4, and all alarm judgments are made.

A data file 7 is found from the alarm registration section 5 through the alarm number search section 6, which corresponds to the alarm. The contents of the data file 7 are pre-stored with data for countermeasures against the cause of the alarm number, ie, PTA, which is then sent to the read processing section 8 for error processing, and the processed data is sent to the main processing section 4. Thereafter, data is transferred from the main processing section 4 to the CRT 9, and a question and answer operation is performed between the keyboard 10° CRT 9 and the main processing section 4, and the editing processing section 11 performs all corrections to the program.
Be sure of a legitimate program. Reference numeral 12 denotes a drive unit that is driven by program execution.

Figure 2 shows the PTA tracking algorithm.
First, when the program check is started (ST-13), the program of each block from the beginning of the machining program is read out (ST-14), and the presence or absence of an alarm is checked by the all-alarm discrimination circuit (ST = 15.16). ). When an alarm occurs, the alarm number will be displayed on the message 1cRT (ST-18) and at the same time,
Search for the confirmed alarm number from the diagnostic file (
ST-19) L, read the corresponding file sound 5T-2
0) Perform diagnostic processing. Then, display the malicious program on the CRT and register it in advance.
) to point out the location of the malicious program. 5T-21) Repeated question-and-answer sessions as part of the operating procedure during editing;
Correct the incorrect parts (5T-22). This question-and-answer function is an assistance function when making program corrections, and by pre-registering countermeasures for each alarm as a PTA in each alarm file, it is possible to convey the correct questions to the operator. So, “YES”N
The final confirmation of the operator can be made in an interactive format using only "O".

Further, FIG. 3 is a screen that allows for diagnosis details and Q&A.

In the above embodiment, the order of the correction method for alarms in a machining program is described, and it goes without saying that the procedure can also be applied to diagnosis of operational errors, processing when a numerical control device is abnormal, etc.

〔Effect of the invention〕

As described above, the present invention utilizes the processing program correction and diagnosis functions of the NC device to enable corrections to be made interactively with a CRT through Q&A, so that anyone other than professionals with interrogation knowledge can perform corrections. This has the advantage of allowing programs to be corrected easily and with high efficiency.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a numerical control device according to an embodiment of the present invention, FIG. 2 is a flowchart showing its processing procedure, FIG. 3 is a diagram of an operation screen on a CRT, and FIG. 4 is a diagram of a conventional numerical control device. A flowchart showing the program correction processing procedure,
FIG. 5 is an example of the diagnostic screen diagram of FIG. 4. In the figure, 1 is a memory, 2 is a reading processing section, 3 is a sub processing section, 4 is a main processing section, 7 is a data file, and 9 is a CRT.

Claims (1)

[Claims] In a method for correcting a program of a numerical control device configured to display a machining program of the numerical control device or an alarm number of a failure on a CRT, the machining program is stored in advance in the memory of the numerical control device; When an alarm occurs, the processing program is called to a sub-processing section to determine the contents of the alarm, the alarm determination result is transferred to the main processing section, and an alarm number search is executed in a data file in which the processing contents of the alarm are stored in advance; A program correction method for a numerical control device, characterized in that the results of the search processing are displayed on a CRT so that editing and correction of a machining program can be executed in an interactive manner.