JPS59169748A - Method of handling abnormality in automatic machining equipment - Google Patents

Abstract

PURPOSE:To enable rapid repair of an automatic machining equipment when any abnormality is detected by judging whether it is the unattended time or not at present as well as the contents of the abnormality, indicating said contents of the abnormality at the man's existing time, and storing said contents and automatically stopping the equipment at the attended time. CONSTITUTION:When information on abnormality such as a trouble, etc. is inputted through a relay unit RU and an interface IF, a processor CPU collates working-hour zone data stored in a RAM and, when judged a man's existing time, warning is issued by means of warning lamps, etc., while the contents of the abnormality are recorded by driving a cathode-ray tube display unit CRTc and a printer PRT, and the number of abnormalities, etc. is obtained and loaded in a floppy disk FD1. When judged a man's inexistent time, on the other hand, the contents of abnormality is stored in the RAM and recorded by the PRT, the saving data are loaded in the FD1, FD2, the power source is cut off, and the whole is maintained in an engaged condition. Thereby, an abnormality can be easily handled enabling rapid repair.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a method for solving the problem when an abnormality occurs in an automatic processing device.
The present invention relates to an abnormality handling method for dealing with abnormalities.

[Prior art]

Conventionally, automatic processing equipment includes NC control equipment and NC
A machine tool is used, and if a series of machining data is replaced with a patch tape and sent to an NC control device, the NC machine tool will automatically and continuously machine the object according to the control of the patch tape. However, if an NC machine tool is equipped with various attached equipment, if any abnormality occurs such as a failure, it will take time to find the abnormal part, delay in repairing the abnormality, and reduce work efficiency. This caused the disadvantage of deterioration.

In addition, automatic processing equipment may be operated unmanned even at night, and if an abnormality occurs during this time and it automatically stops, the next day when the person in charge is dispatched and starts operation, the machine will continue to operate without knowing that the abnormality has occurred. Moreover, there are also disadvantages such as enlarging the failure area.

[Summary of the invention]

The present invention has the purpose of fundamentally solving such drawbacks of the conventional art, and stores machining data in a storage means, reads the machining data from therein according to a machining schedule, and sends the read machining data to the machining means. With this, in an automatic processing device that processes a workpiece using a processing means, when an abnormality in this automatic processing device is detected, it is possible to determine whether the current time is manned or unmanned, and
An extremely effective abnormality processing system for automatic processing equipment that determines the content of the abnormality and displays the content of the abnormality when it is manned, while storing the content of the abnormality and automatically stopping the processing equipment when it is unmanned. The present invention provides a method.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

Figure 1 is an overall configuration diagram, and the belt conveyor BC carrying a plurality of pants) PT is moved in the direction of the arrow.
It moves in steps and circulates by the pitch of one T, and on the PT (pants),
Each workpiece is placed one by one in a predetermined direction.

Further, an image sensor Is is provided opposite to the position Pa of the belt conveyor BC to photoelectrically detect dimensions such as the height and width of the object, and based on the detection output of this,
Computer commercials to check whether the object is planned in advance or not
P makes a judgment and issues a command to the robot control unit RC via the relay unit (RU) and the system controller SC, and when the object comes to position Pc, whether or not to grip the object with the hand 1 of the robot RB. is under control.

The object that has reached position PC via position pb is transferred to hand RH.
1, and is automatically supplied to the NCC machine chuck CH, and is processed by the NCC machine tool N as a processing means according to the machining data given from the computer CMP to the NC control unit CN. When the processing is completed, the object is removed from the chuck CH by the hand RH2 and discharged onto the pant (pants) PT which moved two steps during the processing and reached the position Pe.

Note that the next object that reaches position Pc by one step movement during processing is gripped by the empty hand R)II, and further one step movement of pallet PT-3= is performed. Then, after removal by hand RH2, supply to chuck C)I is performed by hand RHI, and the same operation continues from then on, so it corresponds to the operation of NCC machine tool N. The feeding and discharging of objects is repeatedly performed by a hand kt(t, RU2) serving as a feeding means and a discharging means.

However, the operations and actions of the belt conveyor BC, the image sensor ISl robot RB, and the NCC machine tool N are performed in synchronization with each other under the control of the system controller sC.

In addition, the computer CMP gives operation commands to the NCC machine tool N via the relay unit (RU), and
Send display data to the cathode ray tube display CRTM installed on the N side of the CC machine tool, and determine the type and order of objects to be placed on the PT.

It displays the processing allowance, the type of object being processed, the type of object to be processed, etc.

FIG. 2 is a block diagram of the electrical configuration, and shows the NCC machine tool N example: robot controller RC, system controller SC, image sensor! To prevent noise, control signals and response signals are exchanged between the S and the relay unit RU using DC 24V. Information is exchanged between machine CMPs using digital signals.

On the other hand, the computer system QI is mainly used for personal computers, etc., and includes a processor CPU, a fixed memory ROM, a variable memory RAM, a floppy desk FD11FD21 keyboard KB, a cathode ray tube display CRTc, a tape reader PTR, a printer PRT, and an interface. I/F etc. are arranged around the periphery, and they are interconnected by a bus BU.The processor CPU executes the instructions stored in the fixed memory ROM, and the management data given from the keyboard KB and the tape reader. Processing data read from the punch tape by PTH is accessed to variable memory RAM, management data is stored in floppy disk FDl, processing data is stored in the data area of floppy disk FD2,
Necessary processing data is read out according to management data such as the type and quantity of the object and sent to the NC control unit CN via the interface I/F.

In addition, these conditions are sent to the cathode ray tube display CRTc to display the necessary information, and the machining status is printed out to the printer PRT. At the same time, each part is monitored for abnormalities, and if an abnormality occurs, the The content is also displayed on the cathode ray tube display CRTc, and the printer P
It is designed to be printed out by RT.

FIG. 3 is a flowchart showing the data processing status performed before the processed data stored in the data area of the floppy disk FD2 is read out and sent out. ,
6 Figure No. 2 as object management data from the keyboard KB
Type, Quantity, Special Notes When the two-man operation is performed, a processing data address search is performed from 1 figure number 1 process, the required one is extracted from the address where the processing data is stored, and these 6 processing Arrange data addresses for each process”
.

In addition, in order to enable continuous machining using the same chuck diameter, each process is grouped by chuck diameter, and machining data addresses are arranged according to the 6 machining schedule. After determining the quantity and the order of each process, ``creation of a file of setup information'' including the shape data and quantity data of the object is performed, and the file is stored in the file area of the floppy disk FD2.

Therefore, the file area of the floppy desk FD2 stores processed data addresses arranged according to the processing schedule, and according to the contents, the processed data is sequentially read out from the data area serving as a storage means according to the processing schedule. In addition, it is temporarily stored in a variable memory RAM as a temporary storage means, and after being temporarily stored, it is read out in response to a request to the NC control unit CN, and is read out in response to a request from the The data is sent to the NC control unit CN via the I/F, and the above operations are repeated until the machining schedule is completed.

That is, in this example, the "1 setup information of the file area" and the processor CPU constitute a reading means that sequentially reads out the machining data, and thereby the machining data is read out in accordance with the machining schedule.

FIG. 4 is a flowchart showing the control situation by the processor CPU, and the parameters required for control by 1 initialization, namely the number m of pallet PT,
For example, if the number N of the object to be processed is set to zero in the number of the object to be gripped by the hand RH1, and the pants) PT moves by one position, a measurement request is issued. ” becomes YES, the counter for m in the processor CPU registers 1 according to m=m+1°′, and “measurement processing” is performed according to the detection output of the image sensor Is, and m≧ 3?°'
1 measurement request until becomes YES? '.

Repeat the following.

Pants) PT movement is performed and m≧3? If `` is YES, ``measurement processing'' is performed first.
Since it has reached the position PC in the figure, ' = +1
” causes the counter in the processor CPU to register 1, and then displays the message “Is it in the data?” ” determines whether the shape data of the object corresponding to the current K exists in the file area, and if this is YElllt, 6
One measurement data for data? Compare the shape data corresponding to the current K with the measurement data obtained by 1 measurement process, and if this is YES, further pants)P
T moves and Rm≧4? “Measurement request until YES”? ``Repeat the following steps, ``m≧4? If " is YES," the counter for N in the processor CPU is incremented by "1" by "N=N+1", and then "processed data N is transferred from FD2 to RAM" to correspond to N in the data file. Transfer the machining data to the variable memory RAM, and
〉4? "RAM - + CNC" assumes "No", the machining data read from the variable memory RAM is
After sending the data to the C control unit CN, the CRT y display causes the cathode ray tube display CRTM to display machining in progress and machining data, and the above operations are repeated.

In addition, if "Data = measurement data?" is YES,
Gripping the object with hand RH] and NC machine tool N
In response to "RAM-+CNC", the operation of the NC machine tool N is started.

However, after the hand RH1 grips and supplies the object, the pallet PT moves one step, and the hand RH1 moves one step.
1 grips the next object, and subsequently the ball (PT) moves one step further. Therefore, while machining the first object, the ball (m=5) F
T has reached position Pa, and 6 measurement processing for this
will be carried out.

Therefore, if "m)4'i'" is YES and "processing completed?" is YES according to the information from the NC control unit CCC, processing is performed on the floppy disk FD1 by "output processing". After storing the management data of the target object and creating a finished product list, it determines whether "processing is complete" according to the creation status and ENDFLAG, which will be described later. ``Repeat the following steps, and if this turns out to be YES, 1 night? ``Determine whether it is day or night, and if the error is No, instruct 6-stage replacement.''
Please send instructions for replacing the object on the cathode ray tube display (CRTy).
On the other hand, if YES, the process goes to "END" and stops each part because it is an unmanned time with no personnel present.

Also, if "One measurement data for data?" is NO, the object that reached the position Pc is different from the one planned, so the read address of the shape data file is moved to the next one by "Skip", and , the belt conveyor BC is caused to move one step, and the shape data that has been used until now is stored in the final address of the file area by 7 data exchange °''.

Note that if each object is processed sequentially and the last object is attached to the NC machine tool N, there will be no object in the ball (PT) at position Pc, and the shape data in the file area will be removed. Also, there will be no unused items, so there will be 6 data.゛' becomes No, ``E phantom DFLAG-''1
“ENDFLAG-1”K j
jl) ENDFLAG -7! '1' 11- Repeat the steps after ``N=N+1'' once for the set empty 0, and then ``Is there data X? “No” and “ENDFLAG”
=”1”? After “YES” “ENDPI, AD=”
After ENDFLAG is reset to ROII by "0", "Processing completed?""Processingcompleted?" via "YES" and "Output processing" ”, ENDFLAG is 1
"Processing completed?" becomes YES in response to the change from "" to "1" and the completion of creation of the finished product list.

FIG. 5 is a flowchart of abnormality processing by processor CPH, and when abnormality information such as failure is given via relay unit RU and interface I/F,
“Anomaly Detection” and “Night? If the answer is NO, it is determined that the current situation is manned, and the warning lights and bells that are omitted in the system are turned on and the bell is rung, etc., based on the system's "Sending an alarm" method, and the alarm is judged based on the "Abnormal content determination". The location of the abnormality is determined and the CRT display (CRT) and printer PRT
After driving ``Abnormal content display/print'', ``Abnormality history creation/memory'' is executed. Error occurrence 12
The number of times an abnormality has occurred for each part is determined, and the obtained data is stored in the floppy disk FD1.

Also, 6 nights? If '°' is YES, it is determined that the current time is unattended, and the location of the abnormality is determined by ``1 Abnormal Content Judgment'', and the result is stored in the variable memory RAM to perform 6 Abnormal Content Storage'', and the printer PRT is driven to perform "abnormal content printing", and then the data to be saved in the variable memory RAM is stored in the floppy disks FDI and FD2 by "6 Necessary Data Saving".

Next, 6 abnormal hiss) IJ-Create/memorize °',
Determine the number of times an abnormality has occurred for each abnormality location, store this data on the floppy disk FD+, and then turn off the power.
Turn off the power to all equipment, including the Yoshimi Calculator, and place the entire device in a locked state.

We met for 6 nights? ” is determined by the clock circuit in the processor CPU and variable memo I depending on the staff's work situation.
This is done by comparing with time zone data stored in JRAM.

Therefore, when manned, "abnormal content display/print"
When the machine is unattended, the malfunction details are memorized by "Printing the abnormality details" and "Saving necessary data", making it easy for staff to confirm the malfunctioning part and the failure situation, so repairs can be made quickly. At the same time, it is prevented from starting operation without knowing that an abnormality has occurred when dispatched.

However, in FIG. 4, only one of the hands RH1 and RB2 may be used, and the image sensor IS may be installed at another position along the belt conveyor BC. Depending on the shape of the object, the robot may ) Other supply means and discharge means may be applied without using RB.

In addition, the configuration in Figure 2 can be arbitrarily selected depending on the conditions, and in Figures 3 to 5, steps may be replaced or unnecessary steps may be omitted depending on the situation. However, the present invention can be modified in various ways, such as optionally adding a feedback gauging function to the NC machine tool N to actually measure the dimensions of the workpiece after machining and modify the machining data according to the results. It is free.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, the location where an abnormality occurs in automatic processing equipment is immediately displayed when manned, and is retained in print and memory when unmanned, making it easier to deal with the abnormality and repair it. Not only is it quick, but it also prevents starting operation without knowing that an abnormality has occurred at the time of dispatch, so a remarkable effect can be obtained in various automatic processing devices.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is an overall configuration diagram, Fig. 2 is a block diagram of the electrical configuration, Fig. 3 is a flowchart showing the data processing situation, and Fig. 4 is the control situation by the processor. FIG. 5 is a flowchart of abnormality processing by the processor. NM...NC machine tool, CNC...eNC control am,
RB...Robot, Rut, RB2...
・Hand, RC...Robot control unit, BC・15-...Belt conveyor, PT...Pallet, ■S
1III+1 image sensor, CPU...processor, RAM...variable memory, FDl, FD
2... Floppy desk, I/F... Interface, KB 11 @ @ 11 Keyboard, CR
TM, CRTc...-Cathode ray tube display, PTR
e-fist...tape reader. Patent applicant Yamatake Honeywell Co., Ltd. Agent Masaki Yamakawa (and one other person) 16- Fig. 1 1) T JP-A-59-IG974B (6) Fig. 3

Claims (1)

[Claims] processing means for processing the object according to the processing data;
When an abnormality in the automatic processing device is detected in an automatic processing device comprising a storage means for storing the processing data and a sending device for sending the processing data read from the storage device according to a processing schedule to the processing means. It is characterized by determining whether the current time is manned or unmanned and determining the content of the abnormality, displaying the content of the abnormality when the time is manned, and storing the content of the abnormality and stopping the automatic processing device when the time is unmanned. Abnormality handling method in automatic processing equipment.