JPH0673084B2 - Auxiliary function recovery method in numerical control device - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an auxiliary function returning method when machining is restarted from the middle of an NC part program in numerical control (NC) machining.

(Technical background of the invention and its problems) FIG. 5 shows an example of a block configuration of a conventional numerical control device, in which the NC part program 1 is read from a paper tape or the like,
The NC part program (hereinafter referred to as a part program) read by the syntax interpretation control unit 2 is analyzed, and the axis movement target value, the auxiliary function command value, etc. are transferred to the function generation control unit 3 based on the analysis result. Then, the function generation control unit 3 outputs the axis movement target value to the axis movement control unit 4 that actually performs the axis movement, and also outputs the auxiliary function command value to the auxiliary function execution control unit 5 that classifies and executes the auxiliary functions by function. Consider the operation timing data such as whether to complete the auxiliary function operation before starting the axis movement operation, whether to perform the auxiliary function operation simultaneously with the axis movement, or whether to perform the auxiliary function operation after the axis movement operation is completed. Then, the axis movement control unit 4 and the auxiliary function execution control unit 5 realize machining by a numerical controller (not shown).

However, in such a device, part program 1
When resuming machining from the middle of the process, the operator, etc. sequentially checks the process sheet etc. from the beginning according to the auxiliary function and judges the final state of the effective auxiliary function for the auxiliary function required at that time. In order to avoid a machine collision when returning to the auxiliary function after comparing with the state of the processing machine, the axis movement command to save the spindle, the auxiliary function command to select the tool, the auxiliary function command to attach the tool to the spindle, the rotation of the spindle Consider the order of auxiliary function operations to be restored, such as auxiliary function commands that specify the number and auxiliary function commands that determine the rotation direction of the spindle, make notes, and execute them sequentially through manual input commands (auxiliary Since it is necessary to restore the function) and the work is very troublesome, there is a problem that mistakes such as command omission are likely to occur and it takes time.

(Object of the Invention) The present invention has been made under the circumstances as described above, and an object of the present invention is to provide an auxiliary function which should be restored at that time when machining is restarted from the middle of a part program. Displayed according to the set auxiliary function classification, the operator judges the current state of the processing machine, considers the auxiliary function execution sequence, and then sequentially selects or adds the auxiliary functions to be executed from the display and adds the auxiliary functions. To provide an auxiliary function returning method which solves the above-mentioned problems and facilitates resuming in the middle of processing by editing and creating a returning part program while comparing with the display and executing the auxiliary function returning part program. It is in.

(Summary of the Invention) The present invention relates to a method of returning an auxiliary function in a numerical control device, and when machining is restarted from the middle of a part program in numerical control machining, a category of auxiliary function commands is set and stored in advance, Auxiliary function commands up to the part where machining is desired to be restarted are extracted from the part program and stored according to the classification, and auxiliary functions to be restored are displayed according to the classification, and the auxiliary function restoration program is displayed using the display data. Is created and executed.

(Embodiment of the Invention) FIG. 1 shows an example of the configuration of an apparatus for implementing the method of the present invention, and a storage device 11 for storing classification data of auxiliary function commands.
And a command auxiliary function storage device 13 for storing the command auxiliary function data and an auxiliary function return program memory device 15 for storing the created auxiliary function return program, and displays necessary data etc. to display the auxiliary data. A CRT 17 for guiding the creation of a function restoration program and a keyboard 18 for inputting necessary data are provided. Further, the auxiliary function classification input control section 10 is provided which is connected to the CRT 17 and the keyboard 18 and controls the input of the auxiliary function classification and stores the auxiliary function classification data in the auxiliary function classification storage device 11. The command auxiliary function display is controlled by using the classification data, and the command auxiliary function data is stored in the command auxiliary function storage device 13
A command assisting function display control section 12 for storing the information is provided. Further, an auxiliary function edit control unit 14 is provided between the command auxiliary function storage device 13 and the auxiliary function return program storage device 15, and cooperates with the keyboard 18 to perform edit control of the auxiliary function and assist the creation program thereof. It is adapted to be stored in the function restoration program storage device 15. Furthermore,
The auxiliary function return program stored in the auxiliary function return program storage device 15 is an auxiliary function return program output control unit.
16 is input to the syntax interpretation control unit 2 and the function generation control unit 3
It is designed to work and execute the part program in cooperation with.

With such a configuration, its operation will be described with reference to the flowchart of FIG.

In the present invention, the auxiliary function classification input control unit 10 allows the operator or the supplier of the numerical control device (manufacturer) to use the keyboard 18 while observing the CRT 17 to classify auxiliary function instruction address characters and classification data based on the numerical values thereof. It is registered in the storage device 11 (see FIG. 3). And
When the operator performs a sequence search from the beginning of the part program for a portion to be restarted during machining, the command auxiliary function display control unit 12 extracts the auxiliary function command from the part program via the function generation control unit 3, and The latest command auxiliary function is stored in the command auxiliary function memory device 13 for each classified item according to the classification registered in advance in the auxiliary function classification memory device 11, and the auxiliary function commands of the part program are classified and displayed on the CRT 17. That is, a search for a sequence in which machining is desired to be restarted is started (step S1).
It is input (step S2), and it is determined whether it is an auxiliary function command (step S3). Then, in the case of the auxiliary function command, the command auxiliary function is stored in accordance with the auxiliary function address character and the auxiliary function group classified in advance in the auxiliary function classification storage device 11 via the command auxiliary function display control unit 12. The data is stored in 13 and displayed on the CRT 17 as shown in the left part of FIG. 4 (step S4), and the sequence search is performed up to the part program portion to be restarted (step S5). Here, when the sequence search up to the part program portion to be restarted is completed, the operator displays the required auxiliary function command from the classification display of the auxiliary function command of the part program commanded up to the sequence by the auxiliary function edit control unit 14 After judging the state of the processing machine and considering the order of execution of auxiliary functions, the auxiliary functions to be executed are sequentially selected from the display, and auxiliary function commands or position commands other than the displayed auxiliary functions are added. Edit and create the return program while comparing it with the display (step S6),
The auxiliary function return program storage device 15 stores the created auxiliary function return program. The screen for creating the auxiliary function return program has the structure shown in FIG. 4, for example.
The auxiliary function commands instructed by the part program up to the sequence part where machining is to be restarted are classified and displayed on the left part, and the auxiliary function return program being edited and created is displayed on the right part.

In the display of auxiliary function command classification registration shown in FIG. 3, M03 to M05 indicate that they are in the same group, and "*"
Indicates that there is no numerical classification. Also, M03 ~ M
05 indicates spindle-related data, and M07 to M09 indicate coolant-related data.

When the creation of the auxiliary function return program is completed in this way (step S7), the auxiliary function return program stored in the auxiliary function return program storage device 15 is input with an execution command from the keyboard 18 by a switch or the like (step S10). ), Auxiliary function recovery program output control unit 1
After the necessary data such as the target position command and axis movement data generated by the time the sequence search is completed from the beginning of the part program to the part where machining is to be restarted by 6 is saved (step S11), it is transmitted to the syntax interpretation control unit 2. (Step S12). As a result, the auxiliary function return is executed, and the auxiliary functions required for resuming machining midway are sequentially prepared for execution in the order specified by the auxiliary function return program (step S1.
3) After that, the necessary data such as the target position command and axis movement data that have been saved are returned (step S14), and the NC part program for which machining is to be restarted is waited for.

In this way, when restarting machining from the middle of the part program, there is an auxiliary function that should be prepared (returned) in advance.
It is displayed on the CRT17 according to its auxiliary function address calculator and auxiliary function classification, and judges the current state of the processing machine,
After selecting the auxiliary function execution sequence, the auxiliary functions to be executed are sequentially selected from the display, and auxiliary function commands or position commands other than those displayed are added to compare the auxiliary function return program with the display. While editing and creating, the auxiliary function return program can be sequentially executed in the order specified by the auxiliary function return program.

(Effect of the Invention) As described above, according to the restoration method of the present invention, when the machining is restarted from the middle of the part program, the auxiliary functions necessary at that time are displayed according to the preset classification, and the auxiliary functions are displayed. The operator can edit and create a return program while comparing it with the display such as selecting or adding a return program, and the auxiliary function return can be sequentially executed in the order specified by the created auxiliary function return program. It is not necessary to classify and make a note of all auxiliary function commands from the beginning of the machine to the part where you want to restart machining, and also consider the order in which the auxiliary functions are restored according to the current machine state, and then successively input manual commands. There is no need to execute it through the machine, and there is a machine collision due to an auxiliary function command leakage etc. This has the remarkable effect that the auxiliary function recovery preparation time can be significantly shortened while preventing it.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing an example of an apparatus for realizing the auxiliary function restoring method of the present invention, FIG. 2 is a flowchart showing an operation example thereof, and FIG. 3 is a diagram showing an example screen of auxiliary function command classification registration, FIG. 4 is a diagram showing a display example of the auxiliary function return program, and FIG. 5 is a block diagram showing a general example of a conventional numerical control apparatus. 1 ... NC part program, 2 ... syntax interpretation control unit, 3
...... Function generation control unit, 4 ... Axis movement control unit, 5 ... Auxiliary function execution control unit, 10 ... Auxiliary function classification input control unit, 11 ...
… Auxiliary function classification storage device, 12 …… Command auxiliary function display control unit, 13 …… Command auxiliary function storage device, 14 …… Auxiliary function editing control unit, 15 …… Auxiliary function return program storage device, 16…
… Auxiliary function recovery program output control block, 17 …… CRT, 18
……keyboard.

Claims (1)

[Claims] 1. When resuming machining from the middle of a part program in numerically controlled machining, a classification of auxiliary function commands is set and stored in advance, and auxiliary function commands up to the part where machining is to be restarted are stored in the part program. The auxiliary functions to be restored are stored in accordance with the classification, the auxiliary functions to be restored are displayed according to the classification, and the auxiliary function restoration program is edited and created using the display data and executed. Auxiliary function recovery method in numerical control device.