JPH02253311A - Numerical controller - Google Patents

Abstract

PURPOSE:To enable a worker to perform a proper treatment to recover the abnormality by displaying selectively the comments showing the contents of the abnormality, the treating method, etc., in accordance with the level of the worker at occurrence of the abnormality. CONSTITUTION:When the abnormality occurs, an error code generating means 3 produces an error code in accordance with the area or the contents of the abnormality. Then the abnormality display data stored in an abnormality display data storage means 1 is retrieved based on the error code and the level of a worker set by a level setting means 4. A display control means 5 displays the abnormality display data containing the contents and the treating method of the abnormality on a display means 2. As a result, the comments showing the contents and the treating method, etc., of the abnormality set for each worker level are selectively displayed. Thus the abnormality is smoothly recovered, and the time related to the abnormality is shortened.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a numerical control device that is capable of selectively providing comments expressing the nature of the abnormality and how to deal with it, etc. that are appropriate to the level of the operator when an abnormality occurs in a numerically controlled machine tool.

[Prior art]

Conventionally, when an abnormality occurs in a numerically controlled machine tool, a comment indicating the details of the abnormality corresponding to the error code and how to deal with it is displayed on the screen of a CRT display device automatically or by the operator's key operation, etc. That's what I do. Then, the operator needs to confirm the comment indicating the content of the abnormality and its countermeasure, etc., and execute appropriate abnormality recovery measures.

[Problem to be solved by the invention]

However, the comments that are displayed when the above-mentioned abnormality occurs and indicate the details of the abnormality and how to deal with it are displayed with the same content to the site worker, site manager, maintenance worker, etc., and are not suitable for the worker. There are many cases where it is easy to understand. In other words, a worker may be a site worker who is in charge of only operating machine tools for normal workpiece processing, a site manager who supervises the site work, or a maintenance worker who is responsible for the maintenance and management of machine tools or their ancillary equipment. Even if the cause of the abnormality is the same, the scope of work that must be handled is determined in advance depending on the level of the worker. Therefore, it is preferable that the contents of the comment indicating the details of the abnormality and the countermeasures, etc., also indicate the scope of work that is tailored to the level of the worker. The present invention has been made to solve the above-mentioned problems, and its purpose is to enable operators to send comments indicating the nature of the abnormality and how to deal with it when an abnormality occurs in a numerically controlled machine tool. It is an object of the present invention to provide a numerical control device that enables an operator to perform appropriate abnormality recovery measures by selectively displaying information in accordance with the level.

[Means to solve the problem]

The structure of the invention to solve the above problem is as shown in the concept in FIG. an abnormality display data storage means 1 for storing the abnormality display data; a display means 2 for displaying the abnormality display data; an error code generation means 3 for detecting an abnormality and generating the error code corresponding to the detected abnormality; a level setting means 4 for setting the worker level corresponding to the abnormality display data displayed on the means 2; an error code generated by the error code generating means 3; and the work set in the level setting means 4. and a display control means 5 for searching the abnormality display data storage means 1 for abnormality display data corresponding to the user level and displaying the abnormality display data on the display means 2.

[Effect]

When an abnormality occurs, an error code is generated by the error code generating means 3 according to the abnormality location and abnormality content. Based on the error code and the operator level set by the level setting means 4, the abnormality display data stored in the abnormality display data storage means 1 is searched, and the display control means 5 searches the abnormality display data, which includes the abnormality content and its countermeasure method. Display data is displayed on the display means 2. Then, the operator can take appropriate abnormality recovery measures by confirming the details of the abnormality and its countermeasures corresponding to the set operator level.

【Example】

The present invention will be described below based on specific examples. In Fig. 2, 10 is an anguinilla slide type grinding machine;
20 is a numerical control device. The grinding machine 10 includes a grindstone stand 11 that supports a grinding wheel G, and a workpiece table 13 on which a workpiece W is placed. The grindstone head 11 and the workpiece table 13 are moved by servo motors 12.14 which are each rotationally driven by a drive circuit 16.17. The servo motors 12 and 14 are equipped with absolute encoders 18 and 18 for detecting their rotational positions as absolute positions.
19 are connected. Further, the output multiples of the absolute encoders 18 and 19 are input to the CPU 21 via the interface 29. Note that 15 is an end face sizing device for positioning the workpiece W in the axial direction. The numerical control device 20 includes a CPU 21, a RAM 24, and a ROM.
25, pulse generator 23, interface 26.27.
28 and 29, and command pulses sent from the pulse generator 23 are supplied to the drive circuits 16 and 17. The RAM 24 has an error display data area 2 that stores error codes and error display data consisting of error contents and countermeasures for each worker level corresponding to the error code.
41 and an NC data area 242 for storing NC data are formed. As shown in FIG. 5, the abnormality display data is composed of a table showing error codes, abnormalities that occur corresponding to each error code number, and countermeasures for each worker level in response to the abnormalities that occur. On the other hand, a display control circuit 37 is connected to the interface 26, and a CRT display device 38 is connected to the display control circuit 37. The interface 27 includes a data writing device 36 that presets abnormality display data in the abnormality display data area 241 and has operation keys for setting the operator level, and a bubble cassette input/output device that stores NC data. 34 is connected. Further, in order to control the sequence of the grinding machine 10, a sequence controller 40 is provided, and its output terminal is connected to the CPU 21 to detect an abnormality in the grinding machine 10. Next, its effect will be explained. FIG. 3 is a flowchart showing the processing procedure of the CPU 21 of the apparatus of this embodiment. The flowchart in FIG. 3 will be explained with reference to FIGS. 4(a) and 4(c) showing the display screen of the CR7 display device 38. The program shown in FIG. 3 is activated at regular time intervals by an interval timer interrupt. In step 100, the output signal of the sequence controller 40 is input, and in the next step 102, it is determined from the input signal and the state of the numerical control device 20 whether or not an abnormality has occurred in the grinding machine 10 or the numerical control device 20. be done. If an abnormality has occurred, the determination in step 102 is YES, and the process moves to step 104. In step 104, an error code corresponding to the abnormal location is generated and stored, and the process proceeds to step 106, where the error code stored in step 104 and the initial setting of the worker level corresponding to the error code for the on-site worker are used. The error display data area 241 of the RAM 24 is searched, and the error code and the error details for field workers, which are the initial settings of the worker level corresponding to the error code, and their countermeasures are shown in FIG. 4(a).
As shown in , the error code "
"Abnormality C100" and "Abnormality content rNC abnormality" are displayed on the CR7 display device 38 via the interface 26 and display control circuit 37 of the numerical control device 20. Next, proceed to step 108, and if you want to display the display for field workers, which is the initial setting of the worker level in step 106, and the display for maintenance workers, which is a different worker level, for example, Press the operation key "Maintenance" 361 of the data writing device 36 to set for maintenance workers, and if you do not want to change the display, press the operation key rOK of the data writing device 36, 3
Press 62. Next, the process moves to step 110, and in step 108, it is determined whether or not there is an input for another worker level change setting than the display in step 106. If in step 108 there is another worker level change setting than the display in step 106, the determination in step 110 is Y[lS, and the process moves to step 112. In step 112, the error display data area 241 is searched based on the error code stored in step 104 and the worker level for the maintenance worker inputted in the change setting in step 108, and the error code and worker level are changed. As shown in Figure 4 (c), the error details and countermeasures for maintenance workers are displayed together with the date and time of the error, as well as the error code "Abnormal C100J, Abnormal Details rPcU."
The content displayed on the CR7 display device 38 is changed to "Thumb check error", countermeasure r Check PCU card", and the program is terminated. Note that if no abnormality has occurred in step 102 described above, the determination is NO and the process moves to step 114. In step 114, various numerical control screens at that point are displayed, and the program is ended. Further, in step 108, the operation key r of the data writing device 36 is pressed.
If OK and +362 are pressed and there is no operator level change setting, the determination at step 110 is NO and the program ends. In the above embodiment, the abnormality display data storage means is the abnormality display data area 241, and the display means is the CPU 21.
, a display control circuit 37, and a CR7 display device 38. Further, the error code generation means is performed from step 100 to
At step 102, the level setting means performs steps 108 to 11o.
In step 106 and step 11, the display control means
Achieved in 2. In the above program, when an error occurs,
First, the CR7 display device 38 automatically displays the details of the abnormality for the field worker, which is the initial setting of the worker level, and how to deal with it.
After the information is displayed, the worker sets the worker level he/she wants to check and displays it. On the other hand, when an error occurs, the error code may be stored, and after the operator performs a key operation input to set the worker level, the error display data may be searched and displayed. . As mentioned above, workers can specify their worker level and receive comments on the details of the abnormality that are easy to understand and how to deal with it, which is appropriate for that level. This makes it possible to quickly deal with problems.

【Effect of the invention】

In the present invention, an error code generation means detects an abnormality and generates an error code corresponding to the abnormality, and the display control means stores the abnormality display data storage means based on the error code and the operator level determined by the level setting means. Since abnormality display data is searched and displayed on the display means, when an abnormality occurs, by setting the worker level, it is possible to selectively display comments expressing the abnormality details and countermeasures for each worker level. . Therefore, when it is possible to respond to the situation on-site, the abnormality recovery process can be carried out smoothly and the abnormality response time can be shortened. Furthermore, since there is no need to understand unnecessarily complicated abnormalities and how to deal with them, it is possible to prevent mistakes due to insufficient understanding. Furthermore, since the display content can be set in advance for each worker level, the display content is suitable for the worker and is easy to understand, which also has the effect of eliminating the need for unnecessary explanations to the worker.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the concept of the present invention. FIG. 2 is a configuration diagram showing a numerical control device and a grinding machine according to a specific embodiment of the present invention. FIG. 3 is a flowchart showing the processing procedure of the CPU used in the device of the embodiment. FIG. 4(a) and FIG. 4(b) are explanatory diagrams showing the display screen of the CRT display device when an abnormality is displayed. FIG. 5 is an explanatory diagram showing the contents of the abnormality display data. 10...Grinding! 12,14゛...Servo motor 20
...Numerical control device 21-CP U24°...R
AM 241・°・−Abnormal display data area 242・N
C data area

Claims (1)

[Scope of Claims] Abnormality display data storage means for storing abnormality display data consisting of error codes, abnormality contents for each worker level corresponding to the error codes, countermeasures thereof, etc.; and a display for displaying the abnormality display data. means, error code generation means for detecting an abnormality and generating the error code corresponding to the detected abnormality, and level setting means for setting the worker level corresponding to the abnormality display data displayed on the display means. and searching the abnormality display data storage means for abnormality display data corresponding to the error code generated by the error code generation means and the worker level set in the level setting means, and storing the abnormality display data. A numerical control device comprising display control means for displaying information on the display means.