JPH10161718A - Machine tool working information outputting method and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine tool working information outputting method and its device capable of correctly outputting the number and the name of a workpiece. SOLUTION: The method outputting working information on a machine tool working according to an NC working program previously prepares a collating file 143 for collating a starting program number being the program number of the NC working program to be started at the time of satarting working and the number and the name of the workpiece, records working information of the machine tool including the starting program number. Then at the time of reconstituting the log data and outputting it as reconstituted working information, the method retrieves the collating file to coordinate the number and the name of the object to be machined and outputs the number and the name of the corresponding workpiece with the starting program number.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool operation information output method for outputting or recording machine tool operation information from a position near or at a remote location from a machine tool, and an apparatus therefor.

[0002]

2. Description of the Related Art Since operation information such as a machining time record of a machine tool, a machine operation history, and a processed product record relates to production management, an NC unit of an individual machine tool is used to store LA in a factory.
The data was transmitted to a production management computer (server) via a communication cable such as N (local area network) or the like, and was counted and recorded by the production management computer. Since the production management computer records and manages the processing schedule of each machine tool as the production management data, the operation information of the machine tool is output according to the part number and product name of the workpiece in the data of the processing schedule. The output here includes output to a screen, output (recording) to a file, output to a communication line, and the like.

[0003]

In the conventional method for processing and outputting operation information of a machine tool, the product number and the product name are output in accordance with the data of the processing schedule of the machine tool. Otherwise, information is erroneously output. This problem cannot be ignored, as workers on site often need to cut into a hurry workpiece and change the processing order in relation to pre-processing and post-processing. It is a problem.

Accordingly, an object of the present invention is to provide a method and an apparatus for outputting operation information of a machine tool which can accurately output a product number and a product name when outputting operation information of the machine tool. .

[0005]

In order to achieve the above object, a method for outputting operation information of a machine tool according to the present invention is a method for outputting operation information of a machine tool which performs machining in accordance with an NC machining program. A collation file for collating the start program number, which is the program number of the NC machining program to be started at the time of start, with the part number or the product name of the workpiece is created in advance, and the operation information of the machine tool including the start program number is log data. When recording and outputting the log data as reconfiguration operation information,
For the start program number on the log data,
The collation file is searched, and the part number or product name of the workpiece is made to correspond, and the part number or product name of the corresponding workpiece is output together with the start program number.

In the method for outputting operation information of a machine tool, the output as the reconfiguration operation information is recording in an operation information file, and the log data is reconfigured and recorded as the operation information file. At this time, the collation file is searched for the start program number on the log data, and the part number or product name of the workpiece is made to correspond to the start program number. It can be recorded in an information file.

In the above-mentioned method for outputting operation information of a machine tool, it is preferable that the operation information is transmitted from an NC unit for controlling the machine tool via a communication medium.

The machine tool operation information output device according to the present invention is a device for outputting machine tool operation information for performing machining in accordance with an NC machining program.
A main storage device, an auxiliary storage device, and an NC stored in the main storage device or the auxiliary storage device and started at the start of machining
A collation file for collating a starting program number, which is a program number of a machining program, with a part number or a product name of a workpiece, and operating information of a machine tool including the starting program number as log data as the main storage device or the auxiliary storage device Log search means to record the work file number or product name corresponding to the start program number, and search means for searching the collation file to obtain the work part number or product name corresponding to the start program number. Output means for outputting.

The machine tool operation information output device according to the present invention is a device for outputting machine tool operation information for performing machining in accordance with an NC machining program, comprising: information processing means;
A main storage device, an auxiliary storage device, and an NC stored in the main storage device or the auxiliary storage device and started at the start of machining
A collation file for collating a starting program number, which is a program number of a machining program, with a part number or a product name of a workpiece, and operating information of a machine tool including the starting program number as log data as the main storage device or the auxiliary storage device Log recording means for recording the log data, the log data recorded by the log recording means to convert the log data to reconstruct the operation information, and a data conversion means for recording as an operation information file in the auxiliary storage device, The data conversion means
For the start program number, the collation file is searched to associate the part number or product name of the workpiece, and the part number or product name of the corresponding workpiece together with the start program number is recorded in the operation information file. .

[0010] In the machine tool operation information output device, there is provided a communication medium connection means, and the operation information of the machine tool is inputted through a communication medium connected to the communication medium connection means. Is preferred.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of a production management computer 1 as an operation information output device of the present invention. As the production management computer 1, a computer more than a small personal computer (so-called personal computer) can be used. The production management computer 1 is provided with a CPU 10 as information processing means for performing various data processing. The CPU 10 is connected via a bus 11 to a ROM 12 and a RAM 13 as main storage devices. CP
The U10 operates according to system programs and data such as BIOS stored in the ROM 12, and programs and data loaded in the RAM 13. As such programs, a log recording program 131, a data conversion program 132, a display control program 133, and the like, which will be described later, are loaded into the RAM 13.

A fixed disk device 14 is connected to the CPU 10 via a bus 11 as an auxiliary storage device. The CPU 10 is transferred from the fixed disk device 14 to the RAM 13.
Various application programs to be executed are loaded. At the same time, a log file 141 and an operation information file 142 to be described later are recorded on the fixed disk device 14, and a collation file 143 is created in advance. Further, peripheral devices are connected to the CPU 10 via a bus 11.

As peripheral devices, a display means 15 for displaying characters and figures and an input means 16 for an operator to input data are connected to the bus 11 via an interface circuit. As the display means 15, a CRT or a liquid crystal display panel can be used, and as the input means 16, a keyboard or the like can be used. As a peripheral device, an input / output device 17
The input / output device 17 includes an input / output device for an external storage medium such as a flexible disk, a magneto-optical disk, and a CD-ROM. The bus 11 is also connected to a timer 18. The CPU 10 can read time information from the timer 18, perform processing at a predetermined time interval by a timer interrupt from the timer 18 at predetermined time intervals, or perform processing at a predetermined time.

A LAN interface 19 which is a communication interface circuit is connected to the bus 11 of the production management computer 1.
A plurality of NC (numerical control) devices 2 are connected to 9 via a communication cable. Each NC device 2 also has a LAN interface 21, and the LAN interface 2
1 is connected to a communication cable. The production management computer 1 functions as a server. As the NC device 2, a so-called personal computer NC device having a function as a personal computer is desirable, but a normal NC device having a communication function is used.
It may be a device. The NC device 2 includes a machine tool (not shown)
Are connected and drive-control the spindle motors of the machine tool, and the X, Y, and Z axis motors according to the NC machining program.
It controls driving and positioning of each movable part of the machine tool.

FIG. 2 is a diagram showing a flow of processing until various operation information of the machine tool is recorded, converted, and finally displayed on the display means 15. The CPU 10 of the production management computer 1 reads various pieces of operation information of the machine tool transmitted from the NC device 2 via the communication cable in accordance with the log recording program 131, and reads the log file 14
Record in 1. The operation information includes a recording time, an operation state, a start program number (O number) which is a program number of the NC processing program started at the start of processing, an alarm state, an alarm number, a processing state, the number of processing, and the number of defective products. Various information such as a tool number, a spindle rotation speed, a use time, a rapid traverse time, and a cutting time are each sent as a fixed length field having a predetermined data length, and the fields of the various information are collectively sent as one record. come.

FIG. 3 shows an example of the structure of the operation information. One record is composed of n fields having a fixed length, and has a total length of 100 bytes. The NC apparatus 2 checks the state of the machine tool, for example, every 5 seconds. If there is a change in the state, sets the various information described above in each field of the operation information, and transfers one record of operation information to the production management computer 1. Send. The production management computer 1 records the received operation information as a log file 141.

FIG. 4 is a diagram showing the structure of the log file 141 and the operation information write and read operations.
The log file 141 records a maximum of 16 records of operation information sent from each NC device 2. The log is recorded by the log recording program 131 at a predetermined write position of the log file 141 indicated by the write pointer. Then, the value of the write pointer is advanced by one record. Log file 1
The operation information recorded in 41 is the data conversion program 1
32, one unprocessed record is read from the position indicated by the read pointer, and is decomposed into fields according to a predetermined field length or a delimiter. Each decomposed field is reconstructed and arranged for each NC device 2,
It is recorded as the operation information file 142. Then, the value of the read pointer is advanced by one record. The values of the write pointer and the read pointer are changed so as to move to the head of the file when the end of the file is exceeded. That is, the log file 141 functions as a ring buffer for 16 records.

The operation information file 142 organized for each NC unit 2 is composed of a plurality of types of files according to the purpose, and includes a machining time record file for displaying screens as shown in FIGS. It includes a performance file, processed product performance file, and the like. Display control program 133
According to the instruction input by the operator from the input means 16,
A file necessary for screen display is selected and read from the operation information file 142. Then, a screen corresponding to the operator's instruction is displayed on the display means 15 according to the information read from the file.

When converting the log file 141 into the operation information file 142 by the data conversion program 132, the part number and the product name of the workpiece are included as information, as in the work result record file (see FIG. 9) in the operation information file 142. As for the file, by searching the collation file 143 by the data conversion program 132 from the information of the start program number (O number) included in the operation information, the information of the part number and product name of the workpiece corresponding to the start program number is obtained. Then, the information is inserted into the processed product record file.

FIG. 5 is a diagram showing the data structure of the collation file 143. The collation file 143 stores a start program number (O number), a workpiece number, and a workpiece name in association with each other. By searching for the O number data in the operation information in the collation file 143, it is possible to find out the part number and product name of the workpiece corresponding to the O number.

FIG. 6 shows a screen on which the actual processing time file in the operation information file 142 is read and the actual processing time is displayed. To display this screen, the operator operates the input means 16 to select "production data management system", further selects "results management", and presses the function key F1 for selecting "machining time". . If it has been displayed last time, the previous machining time result screen is displayed and 1
If the number of times has not been displayed, a processing time result screen without a number is displayed. When the "daily / monthly" function key F4 is pressed once and "daily report" is selected, the start date and the end date can be manually input, so the start date: 1996/09 /
01 (September 1, 1996), end date: 1996/09
/ 10 (September 10, 1996) is input, and an execution key (not shown) is pressed, and a machining time result display screen of FIG. 6 is displayed.

The processing time result display screen displays a list of the contents of the processing time result file. The screen shows the date, tool number, tool name, number of spindle rotations, machine use time (seconds), rapid traverse time (seconds), cutting feeds such as G01, G02, G03 for each tool and tool. Cutting time (second), which is the time for which the machine is used for each tool, the rapid feed time, and the time obtained by subtracting the cutting time, for example, other time (seconds) such as the ATC operation time, and the O number of the starting NC machining program. The data is displayed. For example, the use time of the machine for each tool corresponds to the time from the execution of a tool replacement command to the execution of a tool replacement command for the next tool. Since the machining time such as the cutting time is displayed for each tool, the validity of the NC machining program and machining conditions can be confirmed. The “start date” and “end date” indicate a period to be displayed, and the operator inputs a desired period from the input unit 16.

The "machining time" function key F1 is shown at the bottom of FIG.
~ "Menu" function key F9 is provided. The "machining time" function key F1 is a function key for switching to and displaying a machining time actual result management screen, and the "machine operation" function key F2 is a function key for switching to and displaying a machine operation actual result management screen. The "processed product" function key F3 is a function key for switching to and displaying a processed product performance screen for performance management.

The "daily / monthly" function key F4 is a function key for switching and selecting between a daily report and a monthly report each time the key is pressed. That is, the function key F4 for selecting “daily / monthly report”
By pressing once, the "daily report" can be selected and the start date and the end date can be input. By pressing the "daily / monthly" function key F4 twice, the "monthly report" can be selected and the designated month can be input. The “start date”, “end date”, and “designated month” indicate a period to be displayed, and the operator inputs a desired period from the input unit 16. Further, a function key for selection such as this month / last month, this week / last week, yesterday / one yesterday may be separately provided. The “menu” function key F9 is a key for returning to the menu screen of the production data management system. The function keys F1 to F4 and F9 in FIGS. 7 and 9 have the same function.

In the screens shown in FIGS. 7 and 9, "Graph"
A function key F5 is provided. "Graph" function key F
Reference numeral 5 denotes a function key for graphing each selected result. In order to return FIGS. 8 and 10 in which each result is graphed to the previous screen, the “return” function key F15 in FIGS. 8 and 10 is pressed.

FIG. 7 shows a screen on which the machine operation result file in the operation information file 142 is read and the machine operation result is displayed. This is a screen when the function key F2 for selecting “machine operation” is pressed on the processing time result display screen of FIG. The machine operation result display screen displays the contents of the machine operation result file in a list, and displays the operation time of the machine tool every day. The screen shows the date, the time during which the operation preparation switch is “ON” (hour: minute), and the machining time (time: time during execution of the NC machining program from the start to the end thereof).
Minute) and alarm time (hour: minute) are displayed.

FIG. 8 is a screen displaying the data of the actual operation of the machine in a graph. This is a screen when the function key F5 for selecting “graph” is pressed on the machine operation result display screen of FIG. On the screen, data of operation preparation input time (hour), machining time / operation preparation input time (%), and alarm time / operation preparation input time (%) for each day are graphically displayed. Further, data obtained by summing the data over a predetermined period designated by the operator is also displayed in a graph.

FIG. 9 shows a screen on which the processed product record file in the operation information file 142 is read and the processed product record is displayed. This is a screen when the function key F3 for selecting “workpiece” is pressed in the screens of FIGS. 6 and 7. The processed product result display screen displays the contents of the processed product result file in a list, and displays the number of processes for each day and for each process part number. The screen displays the date, the product number, the product name, the start program number (O number), the number of processes, the number of good products, and the number of defective products. The data of the product number and the product name are obtained by searching the collation file 143 to obtain the product name and product number corresponding to the startup program number and writing the data in the processed product file.

FIG. 10 is a screen displaying data of processed product results in a graph. This is a screen when the function key F5 for selecting “graph” is pressed on the processed result display screen of FIG. The screen displays a graph of the number of non-defective products and the number of defective products for each day and each startup program number.

The processing time result file, the machine operation result file, the processed product result file, etc. displayed on the screen as described above store data for several months, and it is necessary to create weekly and monthly total data. It is also possible to perform comparison with last month's data. The capacity of the fixed disk device 14 built into the production management computer 1 is sufficient to be about 100 megabytes to 1 gigabyte.
The screens shown in FIGS. 6 to 10 are displayed on the local NC.
It can also be displayed on the device 2. That is, in response to a request from each NC device 2, an operation information file is transmitted from the production management computer 1 as a server to each NC device 2, and each N
The C device 2 performs a similar display based on the operation information file.

In the above embodiment, each NC device 2
The operation information sent from the computer to the production management computer 1 does not include the information on the product number and the product name of the workpiece, but includes only the information on the startup program number. Since the product number and product name are obtained, even if the processing schedule is changed, the product number and product name of the workpiece are not erroneously output, and accurate operation information can be output.

In the above embodiment, the operation information output device is a production management computer in which NC devices attached to a plurality of machine tools are connected via a factory LAN. Not only such a production management computer but also an NC device attached to each machine tool may locally output and record operation information. In this case, the production management can be performed by copying these operation information files recorded by the local NC unit to a recording medium such as a flexible disk and reading the copied information into a production management computer.

Also, the operation information output device records the part number and the product name of the workpiece together with the start program number in the operation information file. However, the operation information file is recorded as only the start program number, and is recorded on the screen display or the printer. May be searched at the time of output, and the part number and product name of the workpiece may be added. Further, the log data and the collation file are recorded as a file in the fixed disk device as the auxiliary storage device. However, in order to speed up the processing, one or both of the log data and the collation file are stored in the RAM as the main storage device. May be stored. Further, the communication medium constituting the network such as the LAN in the factory is not limited to wired communication such as a communication cable, but may use wireless communication.

[0034]

Since the present invention is configured as described above, it has the following effects.

The operation information sent from each NC unit does not include the information of the work part number and the product name, but only the information of the start program number. Since the product number and the product name are acquired, even if the processing schedule is changed, the product number and the product name of the workpiece are not erroneously output, and accurate operation information can be output.

In particular, when the operation information is transmitted via a communication medium such as a communication cable, the distance between the machine tool and the operation information output device is large, and the information may be output erroneously due to a schedule change or the like. It is easy for this to happen frequently, but by obtaining the part number and product name of the workpiece from the start program number, such errors can be eliminated and accurate operation information can be output.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of an NC apparatus according to the present invention.

FIG. 2 is a diagram illustrating a flow of processing of operation information of a machine tool.

FIG. 3 is a diagram illustrating an example of a structure of operation information;

FIG. 4 is a diagram illustrating a structure of a log file and writing and reading of operation information.

FIG. 5 is a diagram illustrating a data structure of a collation file;

FIG. 6 is a diagram showing a display screen of a processing time result.

FIG. 7 is a diagram illustrating a display screen of a machine operation result;

FIG. 8 is a diagram illustrating a graph display screen of a machine operation result.

FIG. 9 is a diagram illustrating a display screen of a processed product result;

FIG. 10 is a diagram illustrating a graph display screen of a processed product result;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Production management computer 2 ... NC device 10 ... CPU 11 ... Bus 12 ... ROM 13 ... RAM 14 ... Fixed disk device 15 ... Display means 16 ... Input means 17 ... Input / output device 18 ... Timer 19 ... LAN interface 21 ... LAN Interface 131 Log recording program 132 Data conversion program 133 Display control program 141 Log file 142 Operation information file 143 Reference file

Claims (6)

[Claims] 1. A method for outputting operation information of a machine tool for performing machining in accordance with an NC machining program, comprising: a starting program number which is a program number of an NC machining program to be started at the start of machining; A collation file (143) is created in advance, and the operation information of the machine tool including the start program number is recorded as log data (141), and the log data (141) is reconfigured and reconfigured. When outputting as information, the collation file (1) is added to the start program number on the log data (141).
43) A method of outputting operation information of a machine tool which retrieves 43) and associates the product number or product name of the workpiece with the start program number and outputs the product number or product name of the corresponding workpiece. 2. The operation information output method for a machine tool according to claim 1, wherein the output as the reconfiguration operation information is a record in an operation information file (142), and the log data (141). Is reconstructed and recorded as the operation information file (142), the collation file (143) is searched for the start program number on the log data (141) and the part number or product name of the workpiece And a machine tool operation information output method for recording, in the operation information file (142), a part number or a product name of a corresponding workpiece together with the start-up program number. 3. The method for outputting operation information of a machine tool according to claim 1, wherein the operation information is transmitted from an NC unit (2) for controlling the machine tool via a communication medium. Method of outputting machine tool operation information that is sent. 4. An apparatus for outputting operation information of a machine tool performing machining according to an NC machining program, comprising: an information processing means (10); a main storage device (12, 13); an auxiliary storage device (14). A collation file (143) for collating an activation program number, which is stored in the main storage device or the auxiliary storage device and is a program number of an NC machining program to be activated at the start of machining, with a part number or a product name of a workpiece; A log recording unit (10, 131) for recording operation information of the machine tool including the start program number as log data (141) in the main storage device or the auxiliary storage device; Search means for acquiring the part number or product name of the workpiece corresponding to the start program number; An operation information output device for a machine tool, comprising: output means for outputting a product number or product name. 5. An apparatus for outputting operation information of a machine tool performing machining according to an NC machining program, comprising: an information processing means (10); a main storage device (12, 13); an auxiliary storage device (14). A collation file (143) for collating an activation program number, which is stored in the main storage device or the auxiliary storage device and is a program number of an NC machining program to be activated at the start of machining, with a part number or a product name of a workpiece; A log recording unit (10, 131) for recording operation information of the machine tool including the start-up program number as log data (141) in the main storage device or the auxiliary storage device; and a log recording unit (10, 131). The log data (141) is converted to reconstruct operation information, and the operation information file (142) is stored in the auxiliary storage device (14).
The data conversion means (10, 132) records the collation file (143) with respect to the activation program number and searches for the part number of the workpiece or An operation information output device for a machine tool, wherein an operation information output device (142) records an article number or an item name of a corresponding workpiece together with the starting program number in the operation information file (142). 6. The operation information output device for a machine tool according to claim 4, further comprising a communication medium connecting means (19), connected to said communication medium connecting means (19). A machine tool operation information output device for inputting machine tool operation information via the communication medium provided.