JP2948262B2 - Abnormal list screen display system in automatic line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention is applied to an automatic production line, and when an abnormality occurs, monitoring that can clearly display the item that caused the abnormality. Related to the device.

"Conventional technology and its problems" In an automatic line composed of many processes such as an automobile production line, it is constantly monitored whether the processes to be executed are being performed reliably, and abnormalities occur. In such a case, it is necessary to immediately respond to the abnormality.

In other words, there is a possibility that all the production lines are stopped based on one abnormality, and it is necessary to immediately know the cause of the abnormality and to deal with it promptly.

The present invention has been made in view of the above circumstances, and enables an operator to directly recognize the cause of the occurrence of an abnormality through visual perception, and can quickly respond to the cause of the abnormality. The purpose is to provide an abnormal list screen display system in a line.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an abnormality list screen display system that displays an abnormality that has occurred in an automatic line, and includes various sensors provided in a component of the automatic line. And a display unit for displaying an abnormality of the automatic line, and a control unit for displaying the content of the abnormality obtained based on the detection signal of the sensor on the display unit, wherein the control unit detects the detection output from the sensor. Determining means for determining whether or not an abnormality has occurred based on a signal; classification means for classifying the content of the abnormality based on the determination result in accordance with an abnormality level, for each of a plurality of restoration correspondence levels; and The display unit is provided with driving means for displaying each restoration correspondence level.

According to the present invention, after determining whether or not an abnormality has occurred based on a detection signal output from a sensor, the abnormality content is determined based on the determination result in accordance with the abnormality level. Separately, furthermore, the contents of the classified abnormalities are displayed on the display unit for each recovery response level, so when an abnormality occurs in the automatic line, the operator refers to the display contents of the display unit, The operator can directly recognize the degree of the abnormality by visual recognition.

Embodiment First, a schematic configuration of the entire system will be described with reference to FIG.

Reference numeral 1 denotes an operation display unit.
An operation panel 2 for outputting various commands such as mode setting and screen display switching, a CRT 3 for displaying data, and a CP for controlling the CRT 3
It consists of U4.

The output of the operation panel 2 is supplied to a CPU 6 as a master controller for controlling automatic machines 5a, 5b... 5i provided for each station (ST) of the automatic line.
The CPU 6 supplies the supplied instruction to each of the automatic machines 5a, 5b,... 5i, or supplies predetermined instructions to various information supplied from the automatic machines 5a, 5b,. And CR
It is designed to be displayed on T3.

The automatic machines 5a to 5i are each configured by a conveyor for transporting various assembled parts, an industrial robot (for example, a handling robot, a sealing robot, a welding robot, a painting robot, and the like) for processing the various assembled parts, and It operates in a mode corresponding to the command supplied from the CPU 6, and includes a power supply motor M as a driving source for performing various operations, or a solenoid SOL for controlling hydraulic and pneumatic devices. together with, and a sensor S ₁ for collecting data indicating the limit switch LS, or other operating conditions as a sensor for detecting the operation over a predetermined stroke.
All of these devices have remote I / O port 7
A signal is transmitted to and received from the CPU 6 via the CPU.

The power supply of the automatic machine 5a-5i, a pressure source, voltage sensor S _2, respectively are provided, the data of the pressure has to be supplied to the CPU 6, in the CPU 6, the value is normal not Is determined. Furthermore, so that the emergency stop switch provided in the automatic line (information about occurrence of an abnormality) information supplied from the (not shown) and various sensors S ₂ is also supplied to the CPU 6.

Next, the control contents of the CRT 3 at the time of abnormality set in the CPU 6 and the CRT 3 displayed by the CPU 6 (CPU 4).
And a specific example of the display screen will be described. In addition,
The CPU 4 is provided as a driving unit for driving the CRT 6, and the driving is performed based on the control contents of the CPU 6, and substitutes a part of the control function of the CPU 6.

The CPU6 is adapted as input data to perform abnormal determination of whether, as described above, emergency stop switch, the limit switch LS and the detection signal output from the sensor S ₁ · S ₂ is captured, Based on this detection signal, the CPU 6 executes “emergency stop”, “servo overrun”,
After determining the type of abnormality such as "sequencer abnormality" or "welding power supply abnormality" (by the judging means indicated by reference numeral 6A), the judgment result is classified (by the classification means indicated by reference numeral 6B), and the CR
It is displayed in a predetermined display column on T3.

Also, what is displayed on the CRT 3 is a first display screen for an entire line as shown in FIG. 2 and a second display screen for an individual station as shown in FIG. And a third display screen for status display as shown in FIG.

The screens for the entire line, for the individual station, and for the status display will be described below.

First, the display screen of the entire line shown in FIG. 2 has a station display section (T / F, 1ST, 2ST,...) For displaying the station at the location where the abnormality has occurred, and details of the abnormality that has occurred at each station. And an abnormality content display section which is roughly divided into three according to the abnormality response level according to the abnormality level, and lights up and displayed. The abnormality content display section includes "immediate stop" and "1 cycle stop". , And “alarm” (the station display unit is denoted by a reference numeral, and each of the abnormality content display units is denoted by a reference numeral).

Note that the "immediate stop" indicates an emergency stop state when an abnormality that cannot continue the operation of the automatic machines 5a to 5i occurs, and the "1 cycle stop" Indicates a stop state in which the operation of the automatic machines 5a to 5i in which an abnormality has occurred is stopped when a predetermined processing cycle ends, and the "alarm" refers to the automatic machine 5a.
Although the operations of 5i to 5i are not particularly stopped, the occurrence of the abnormality is notified by sound or light.

Then, when the CPU 6 displays, for example, “1ST” and “immediate stop” on the display screen for the entire line, next, what specifically caused the “immediate stop” of “1ST” Is displayed on the individual station display screen shown in FIG. Switching to the individual station display screen is performed, for example, by pressing a switch (not shown) provided on the operation panel 2, but is not limited to this, and is automatically switched after a predetermined time. You may do it.

Hereinafter, a specific example of the display screen for the individual station will be described with reference to FIG.

On the display screen for the individual station, items of "immediate stop", "1 cycle stop", and "alarm" corresponding to the display screen of the whole line in FIG. A "trouble name" showing an example is provided.

When an abnormality occurs, one (one or more in some cases) of the “trouble name” classified into “immediate stop”, “one cycle stop”, and “alarm” for each station.
Are selectively turned on (indicated by reference numerals in FIG. 3). In FIG. 3, for example, the display of “1ST” is specifically shown.

Note that the trouble names of the “immediate stop” include “emergency stop”, “sequencer abnormality”,
There are "welding power supply abnormality" and the like, and the trouble name of "1 cycle stop" includes "trans thermo abnormality" and "hydraulic servo abnormality" as indicated by reference numerals, and The trouble name is “sequence battery error”.

If "LS (Limit Switch) Abnormal" is displayed at the time of the "immediate stop", the changeover switch (not shown) provided on the operation panel 2 is further depressed.
As shown in the figure, a "body display screen" is displayed, the type of the limit switch is specifically displayed on the screen, and an abnormal portion is selectively lit by the limit switch. The limit switches displayed on the “status display screen” are provided on, for example, a cam plate, an ejector, and the like.

2 to 3 based on the display of the screens shown in FIGS. 2 to 4 described above, the selective lighting display of the abnormal part on the screen, and the ON operation of the changeover switch. Switching and switching of the screen from FIG. 3 to FIG. 4 are performed by a control program stored in a memory (not shown) of the CPU 6. Switching from the screen shown in FIG. 3 to the screen shown in FIG. 4 is performed by a changeover switch (not shown).
Is performed by pressing, but is not limited to this, and may be automatically switched after a predetermined time.

According to the screen display pattern described above, the CPU 6, (one) when the abnormality based on the detection signal from the limit switch LS or sensor S ₁ · S ₂ it is determined whether or not occurred, the abnormality occurs, The whole line display screen shown in FIG. 2 is displayed on the CRT3, that is, the station where the abnormality has occurred and the content of the abnormality (“immediate stop”, “1 (2) After that, on the condition that the changeover switch provided on the operation panel 2 is pressed, as shown in FIG. The trouble name of the content ("immediate stop", "1 cycle stop", "alarm") is displayed specifically. (3) After that, it is confirmed that the changeover switch provided on the operation panel 2 is pressed again. Fig. 4 As shown in
The name of the trouble where an abnormality has occurred (for example, the abnormal location of the limit switch) is displayed more specifically.

In other words, according to the system for displaying an abnormality list screen in an automatic line according to the present embodiment, when various abnormalities occur in each station, a screen showing the abnormalities, FIG. 2 to FIG. 3, and FIG. By sequentially switching from FIG. 4 to FIG. 4, the operator can visually recognize the cause of the occurrence of an abnormality. As shown in Fig. 3, it is classified and displayed according to the abnormal level.
By referring to the contents of the classified abnormalities, the operator can directly recognize the degree of the abnormalities, thereby obtaining an effect of quickly coping with the cause of the abnormalities.

Further, the information on the abnormality is continuously obtained through the screen without going to the site where the abnormality has occurred. In this regard, the effect that the countermeasure against the abnormality can be promptly taken is also obtained. .

In this embodiment, the cause of the abnormality can be known in detail by sequentially switching the screen display by one CRT 3. However, the present invention is not limited to this. May be displayed. Also, characters (for example, “for the entire line”, “for the individual station”),
“Status display” may be selected by the CPU 6 and only the abnormal item may be displayed in a predetermined part of the space (and the remaining part of the space may be displayed on an arbitrary screen). ).

Further, the display unit is not limited to the CRT, but may include a plurality of abnormal contents described in advance in characters (for example, “station”, “immediate stop”, “1 cycle stop”, “alarm”
And the like, a "trouble name" corresponding to each of these items, and a lamp selectively pointing to the character described above.

[Effects of the Invention] As described above in detail, according to the present invention, after determining whether or not the above has occurred based on the detection signal output from the sensor, the abnormality content is determined to be abnormal based on the determination result. According to the level, it is divided into a plurality of recovery response levels, and furthermore, the contents of the classified abnormalities are displayed on the display unit for each recovery response level, so if an error occurs in the automatic line, the display on the display unit By referring to the contents, the operator can immediately recognize the contents of the abnormality and the degree of the abnormality, and can quickly respond to the abnormality. The effect is obtained.

Further, the information on the abnormality can be known through, for example, a screen that is a display unit without going to the site where the abnormality has occurred. In this regard, it is possible to promptly deal with the abnormality. The effect that can be obtained is obtained.

[Brief description of the drawings]

1 to 4 are views showing an embodiment of the present invention,
FIG. 1 is a block diagram of a system including a functional block diagram,
2 to 4 are diagrams showing examples of screens displayed on the display unit. S ₁・ S ₂ …… Sensor, 3… CRT (display), 4… CPU
(Control unit), 6 CPU (control unit)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B23P 21/00 307

Claims (1)

(57) [Claims] 1. An abnormality list screen display system for displaying an abnormality that has occurred in an automatic line, comprising: various sensors provided in a component of the automatic line; a display unit for displaying an abnormality in the automatic line; A control unit for displaying on the display unit the content of the abnormality obtained based on the detection signal, wherein the control unit determines whether or not an abnormality has occurred based on the detection signal output from the sensor; and A classification unit that classifies the details of the abnormality into a plurality of restoration support levels according to the abnormality level based on the determination result; and a driving unit that displays the classification result on the display unit for each restoration support level. An abnormal line screen display system for an automatic line, comprising: