JPS6332603A - Production indicating device - Google Patents

Abstract

PURPOSE:To early detect of wrong inputs and to eliminate the reciprocating motions between the master and slave stations, by using a teaching box for replacement of data which is connected communicatably to slave stations and displays the data contents of all files of a master station. CONSTITUTION:In an assembling process the symbols of parts to be assembled are supplied through a keyboard switch 20 of a teaching box TB14 and a request is given to a master station 2 via a network 13 for a list of parts symbols. The station 2 sends the specification symbols of those assembling parts to the TB14. These symbols are stored in a memory 18 and an optional parts specification symbol is displayed on a display device 22. Then a symbol showing an indicating element 10 is supplied via a keyboard 2 to indicate the parts corresponding to the relevant specification symbol. A signal is sent to each slave station 12 and each element 10 works in response to the corresponding signal. At the same time, the symbols of these elements 10 are stored in the memory 18 of the TB14. The next parts specification symbol is displayed on the device 22. The same operation is repeated and a table of correspondence is produced on the memory 18. Based on this table, the station 2 extracts the processes and the areas where the parts are changed and corrects other files.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement of a production instruction device for the purpose of improving the efficiency of a production line that assembles parts to a plurality of types of objects to be assembled.

(Prior Art) When manufacturing products consisting of many parts on a mantissa production line, for example, when assembling a car, parts to be assembled according to each car type are prepared in advance for each process, and each process After selecting the parts to be assembled according to the type of car body that arrived, the installation work is carried out.

In order to improve the efficiency of such work, it is necessary to know the type of vehicle before the vehicle arrives at each process, select the parts to be assembled according to the vehicle type, and complete work preparations. be. A production instruction device for smoothly carrying out this preparation was devised by the present applicant, and a patent application has been filed (Japanese Unexamined Patent Application Publication No. 1983-1999-1).
10.0551).

An example of assembling multiple types of automobiles on a production line according to the above invention will be described.

This production instruction device has a master station, a slave station, and a barcode league, and the master station has a host combinator, a storage medium,
The machine is equipped with a control panel and a control panel, and is used to select the parts to be assembled according to the type of car body at each process. The slave station is installed in each process as a terminal equipped with a parts selection indicator that indicates the parts to be assembled selected by the master station using a lamp, etc., and a CPU (central processing unit) that controls this indicator. It is.

The barcode league is for transmitting information to the master station according to the vehicle body type tta.

The storage medium consisting of the magnetic disk of the master station contains a file that stores process-specific parts data, a file that encodes and stores car model-specific parts specification data, a symbol of the car model-specific parts specifications, and the parts selection instruction machine. A correspondence table of each display element,
A list of parts symbols for each assembly part is provided.

The barcode reader is installed at the first step of the production line, and each car body to be assembled has a sticker printed with a symbol indicating the car type in the form of a barcode. When a vehicle arrives at the first stage of the production line, a barcode league reads the code symbol on a sticker affixed to the vehicle body and transmits the vehicle model symbol to the host computer. This is done for each vehicle that arrives on the production line.

A slave station is installed for each process and communicates with the host computer.
Since multiple slave stations communicate with each other, # on the slave) W: J side.
i. Multiple interfaces are provided. This multiplex interface and the master station are connected via a network. The configuration of the slave station includes, in addition to a CPU and a parts selection indicator, a memory, an input/output board, operation switches, a parts signal display, and a process symbol display.

Next, to explain the operation, when a car body comes to the production line, the barcode reader reads the barcode recorded on the sticker affixed to the car body. Store. Next, the host computer selects the part symbol of the part to be attached according to the process and the vehicle type from among the process-specific assembly part data files based on the stored vehicle model symbol.

Thereafter, based on this part symbol, the specification symbol of the attachment part corresponding to the vehicle type that has arrived at the process is selected from the vehicle type-specific component specification data file.

Next, the specification symbol of this part is transmitted to the slave station, and the slave station uses the specification symbol of this part as an index based on the correspondence table between the symbol of the part specification for each vehicle model and each display element of the parts selection indicator. The specifications of the assembled parts are displayed by lighting a lamp or the like that is a display element of the selection indicator.

This correspondence table between the symbols of parts specifications for each vehicle type and the display elements of the parts selection indicator is provided in the recording medium of the master station, but is transmitted to each slave station as a correspondence table according to each process when the production line is operating. and held in memory. The purpose of this is to reduce the time the host combiator spends selecting component specifications, and to prevent original data from being destroyed or altered due to power outages or operational errors on the slave station side. Yes, just in case, this makes the operation of slave stations even more F#! In addition, the space for installing the slave station can be made much smaller.

By the way, for example, when an instruction for a new part is required in a ruru process, the new part for that process can be registered from the slave station to the master station by the following operation.

First, a unique symbol indicating the process is set using the operation switch of the slave station, and the slave station address of the master station is called. Next, after setting the part symbol, it is transmitted to the host combiator using the registration switch. Next, the host combinator indexes the process-specific assembly parts data file based on the process symbol and stores the component symbol corresponding to the symbol in the storage location. This means that a new part has been registered in a certain process.

Next, the host computer returns the symbol of the process where the slave station is installed and the registered parts symbol to this slave station via the network, and the slave station uses the CPU to display the process symbol display and the parts symbol display. displayed on each machine. The operator can confirm that the registration has been completed, and the part data update work is completed.

(Problem to be solved by the invention) When updating process and parts data from a slave station,
In the past, it was possible to deal with changes in the process at a slave station, but it was not possible to deal with increases or decreases in the number of instructed parts, or changes in the arrangement of the indicating elements of the parts selection indicating device. Rarely.

This is because the correspondence table between the component specification symbols for each assembled item and the indicating elements of the component selection indicating device must be changed.
This is because it is necessary to transmit and store data related to parts from a file in a storage medium of a master station to a slave station to perform a batch production. In other words, the slave station has a small footprint,
Furthermore, since the configuration is simplified to simplify operations, updates cannot be performed from the slave station side, other than simple data changes, due to reasons such as small memory capacity.

Therefore, such update work involves directly operating the host computer, and transmitting the correspondence table from the master station via the network to the memory of the slave station that has been changed after the update.

During the update process, it is not possible to check whether the parts selection instruction machine installed in the slave station is working properly, so the parts selection machine installed in the slave station cannot be checked. It was necessary to transmit the correspondence table to the slave station and check the contents of the correspondence table.

In other words, in the correspondence table wA deer; correction,
Moreover, since it is necessary to go back and forth between the Kfi station and the slave station several times for confirmation, there is a drawback that work efficiency is extremely low.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention is configured to be connected to one slave station so as to be able to communicate with it, display all the data contents of files held by the master station, and to A teaching box was installed to update the data.

(Function) After the teaching pendant is communicably connected to the slave station, the contents of the file held by the master station are displayed on the display device of this teaching pendant. Next K.

The user operates the teaching box while looking at this display device, and updates the data, which is the file contents, while checking the operation of the component instruction device via the slave station.

As described above, by operating the teaching pendant via one slave station, the data is updated while actually operating the parts selection instruction device, so it is possible to detect incorrect inputs early, and the master station and slave This eliminates the need to travel back and forth to the station, leading to improved work efficiency.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In FIG. 1, 1 is a production instruction device, 2 is a master station, a host computer 3, and a recording medium 4 consisting of a magnetic disk.
and a console 5 for operating the host computer 3.

Recording medium 4 includes a list of parts symbols, Table 6 (Figure 3), which shows symbols for all parts specifications required in each process, and a process-specific set for selecting part symbols according to vehicle type and process. File 7 (Fig. 4) of attached parts data, file 8 (Fig. 5) of parts specification data for each assembled part showing symbols of parts specifications according to the vehicle model, and parts selection instruction machine 9 (described later) for each process. ), and a correspondence table 11 (FIG. 6) of assembly parts specification data by vehicle type.

Reference numeral 12 denotes a slave station, which is installed in each process and controls the component selection instruction device 9, respectively. The component selection designator 9 operates a designation element 10 consisting of a lamp corresponding to the designated component selected by the master station 2 to designate the component. The slave station 12 is
It is connected to the master station 2 via the network 13 so as to be able to communicate with each other, and has a function of partially updating the contents of both files 7 and 8 of the master station 2.

14 is a teaching box, the configuration of which is shown in FIG. The teaching box 14 has a CPU 15,
CP[J is connected to the slave station 12 via a path 16 and a communication interface 17 so as to be able to communicate with each other. Further, the CPU 15 is connected to a memory 18 via a bus 16, a keyboard switch 20 via an input port 19, and further connected to a display device 22 via an output port 21.

The procedure for adding a new assembly process and starting parts instruction using the production instruction device with the above configuration will be explained.

First, the slave station 12 is installed and connected to the master station 2 via the network 13 so as to be communicable in a process that requires instructions.

Next, after setting the communication address of the master station 2, the teaching box 14 is communicably connected to the slave station 12, and is also communicably connected to the master station 2. Next, when the teaching box 14 requests the official address of the slave station 12 using the keyboard switch 20, the master station 2 displays the official address on the display device 2 of the teaching box 14 via the slave station 12ft.
2 Display on top. Next, the official address of this slave station 12 is set using the keyboard switch 20. As a result, the frame related to the new process data is changed to file 7 of process-specific parts data.
It means that I kept my inner KAI.

Next, the part symbols of the parts to be assembled in this step are input from the keyboard switch 20 of the teaching box 14, and the parts symbol list 6 is requested via the master station 2i/(network 15).

The master station 2 transmits the specification symbol regarding the assembled part to the teaching box, stores it in the memory 18, and displays it on the display [2].
24C Display any part specification symbol.

Next, a symbol indicating the instruction element 10ft, which indicates the component corresponding to the component specification symbol, is inputted from the keyboard switch 20. The signal is transmitted to the slave station 12 to operate the instruction element 10 corresponding to the symbol, and to store the symbol of the instruction element 10 of the teaching box 14. When this storage is completed, the next part specification symbol is displayed on the display device 22, and the work continues in the same manner to complete the production of the corresponding garment 11 on the memory 18.

After completing the creation of the correspondence table 11, it is transmitted to the master station 2 via the slave station 12 and the network 13, and registered in the address of the slave station 2 on the storage medium 4. The master station 2 changes the process and parts based on this correspondence table 11, i! : Extract and correct other files.

In the above embodiment, the case where the slave station 12 is newly installed will be explained.Next, when changing the installation process of the slave station 12, an alternative system will be described in which the address of the slave station 12 is requested from the master station 2. Then, the predetermined addresses of each of the 12 slave stations need only be input from the keyboard switch 20, and the rest is exactly the same.

(Effects) As explained in detail above, the production instruction device of the present invention has the following features:
When rewriting various files of the host combiator when updating a small process, use a teaching pendant.
It is possible to complete the update work on the slave station side while operating and checking each device at the site. Therefore, errors in registration can be detected immediately, and there is no need to go back and forth between the master station and the slave station, improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the production instruction device of the present invention, FIG. 2 is an explanatory diagram showing the configuration of the teaching box in FIG. 1, and FIG. 3 is an explanatory diagram showing the configuration of the teaching box in FIG. Figure 4 is a schematic diagram showing an example of a list of parts symbols that have been observed. Figure 4 is a schematic diagram showing an example of a file of assembled parts data for each process. Figure 5 is a diagram showing part specifications for each assembled item. FIG. 6 is a schematic diagram showing an example of a data file. FIG. 6 is a schematic diagram showing an example of a correspondence table between component specification symbols for each item to be assembled and designation element symbols of a component selection designation device. 1 Production instruction device 2 Master station

Claims (1)

[Claims] (1) It has a file of assembly parts data for each process and a file of parts specification data for each part to be assembled, and based on both files, it specifies the parts to be assembled according to the parts to be assembled that arrive at each process. In an instruction device that includes a master station and a slave station that is installed in each of the steps and has means for displaying the specified contents of the master station, the instruction device is connected to the slave station so as to be able to communicate with the slave station, and is connected to the slave station so as to be able to communicate with the slave station. A production instruction device characterized in that all data contents are displayed and a teaching box is provided for updating the data.