JPH03161253A - Production command system in automatic production line - Google Patents

Abstract

PURPOSE:To avoid stoppage of a whole automatic production line by way of backing it up even when it comes to be impossible to read out contents of an ID card by providing a line computer and memorizing information which is the same as a device information written in each ID card in the memory of the line computer. CONSTITUTION:Even when it comes to be impossible to read out contents of an ID card 3 due to some cause, information memorized in the memory of a line computer 7 is read out. Consequently, it is possible to grasp the contents of ID card 3 and command a specified work breakdown to work facilities 61-6n on the basis thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a production instruction system in an automatic production line.

[Prior Art] In production lines such as automobile factories, various types of workpieces are transported onto the same assembly line, and different parts are assembled to each workpiece.

FIG. 8 shows an example of a line for automatically assembling parts onto a workpiece such as an engine. In this figure, 1 is a conveyor as a conveying device, and a plurality of types of engines 2 are sequentially conveyed at a predetermined speed in the direction of arrow X. I've decided to send it to you.

An ID card 3 is attached to each engine 2 at an appropriate location.

Reference numeral 4 denotes a light station controller installed at the most upstream side of the conveyor l in the transport direction. The memory in the card 3 contains the m type of engine 2 < vehicle model information), the type of parts to be assembled (parts information), and the type of tool used for assembly @
Antenna ANT. has a function to write in-process information such as (tool information). A controller C0 is provided.

Is 5I~5,l along the conveyance direction of conveyor 1? , and each work station 5, to 51 is a work station provided sequentially downstream of the light station 4.
is equipped with white moving parts assembling devices 61 to 67 as working equipment, antennas ANT, -ANTn for reading out information written in the ID card 3, and an automatic parts assembling device based on the read contents. Controllers CI to Cn having the function of instructing work contents to 61 to 6o
and is provided.

FIG. 9 shows an example of in-process information written in the memory in the ID card 3. For example, the in-process information of the work station 5, A. stomach. The in-process information for a. work station 5■ is A. b. In-process information of the work station 63 is shown in A. b. It corresponds to C.

In such an automatic assembly line, when the engine 2 is transported by the conveyor 1, predetermined in-process information is written in the ID card 3 attached to it at the light station 4, and then , sent to the first work station 51? Ru. This work station 5.
7, the ID card 3 by the antenna ANT,
The information written in is read out, and based on the read content, the controller C instructs the automatic parts assembling device 6l about assembly details such as the types of parts and tools that correspond to the vehicle type of the engine 2, Based on this instruction, the automatic parts assembling device 6 assembles predetermined parts into the engine 2. Thereafter, engine 2 is operated at work stations 5■, 5s in the same manner.
...5. , and so on are sent one after another.

[Problem to be solved by the invention]

By the way, if for some reason it is not possible to read the TD card 3 at the work station, for example 5. Since the contents of assembly are not instructed to the automatic parts assembling device 68, the predetermined work cannot be performed at the work station 5■. In this case, can the in-process information written in the ID card 3 attached to the engine 2 in the work station 5 be seen by human eyes? Therefore, the worker in charge of the assembly line could not read this and manually give instructions to the automatic parts assembly device 6■, and as a result, the entire automatic assembly line stopped. It will end up being put away.

The present invention has been made with the above-mentioned considerations in mind, and its purpose is to back up the contents of the ID card even if the contents of the ID card cannot be read out for some reason at the work station. An object of the present invention is to provide a production instruction system (hereinafter simply referred to as a production instruction system) for an automatic production line that can avoid stopping the entire production line.

(Means for solving tlli91) In order to achieve the above-mentioned object, the production instruction system according to the first invention associates parts information and tool information with vehicle type information on an ID card attached to each workpiece. In addition to writing in-process information for each work station, a line computer is installed.
A feature of this line computer is that the same information as the in-process information written in each D card is stored in the memory of this line computer.

Further, the production instruction system according to the second invention writes vehicle type information in an ID card attached to each workpiece, and stores parts information and tool information in association with the vehicle type information in the memory of each controller. It is characterized by the fact that [Operation] According to the production instruction system according to the first invention having the above-mentioned characteristic structure, even if the contents of the ID card cannot be read out for some reason, the information stored in the memory of the line computer can be read out. By reading I
The contents of the D card can be grasped, and based on this, the predetermined work contents can be instructed to the work equipment.

Further, according to the production instruction system according to the second invention comprising the above-mentioned characteristic structure, even if the contents of the ID card cannot be read out for some reason, the vehicle model information and the like are stored in the memory of each controller. It is possible to read the part information and tool information that are stored in association with each other, and to instruct the work equipment to carry out a predetermined work content based on this.

〔Example] Embodiments of the present invention will be described below with reference to the drawings.

In the following drawings, the same symbols as those shown in FIG. 8 indicate the same or equivalent components.

FIG. 1 shows the structure of the production instruction system according to the first invention, and in this figure, 7 indicates each work station 5, to 5.
It is a line computer provided in common to the light stage gong 4, and is connected to a controller Co provided in the light stage gong 4.

Then, an ID card 3 (assumed to have numbers 1 to m) attached to each work 2 transported by the conveyor 1.
As shown in FIG. 2(A), each work station 51 to 51 associates parts information and tool information with vehicle type information.
In-process information for every 51 units is written. Also, Figure 2 (
As shown in FIG. B), the memory 8 of the line computer 7 includes memory sections 81 to 8. for each of the above IDs
The same information as the in-process information written in the card 3 is stored.

? In the production instruction system structured as described above, when the engine 2 is transported by the conveyor 1, the ID card 3 attached to the engine 2 is assigned to each work station 5 at the light station 4. -5, in-process information is written, and the same information as the above-mentioned in-process information is also stored in a predetermined memory section 8I of the line computer 7. When this is completed, it is sent to the first work station 5l, where the in-process information is read out in the same way as in the past, and based on the content, the controller C1 instructs the automatic parts assembly device 61 about the assembly details. Based on this instruction, the automatic parts assembling device 61 assembles predetermined parts into the engine 2.

Thereafter, in the same manner, engine 2 is operated at work station 5■,
5, . . . 51 are sent sequentially.

And, for example, work station 5! If the contents of the ID card 3 cannot be read out for some reason, is it possible to understand the contents of the ID card 3 by reading out the information stored in the memory 8 of the line computer 7? Based on this, predetermined work contents can be manually instructed to the automatic parts assembling device 6■, and the predetermined assembling is performed based on this, so the entire automatic assembling line can be never stops.

FIG. 3 shows the structure of the production instruction system according to the second invention, in particular, the light station 4 and each work station 5. The configuration of the controllers C0, C, -C (collectively referred to as controller rollers C) provided in the controllers C0, C, -C, -57 is distinctive.

That is, FIG. 4 shows an example of the configuration of one controller C. In this figure, 9 is a control section, and 10 is an I/O that controls input/output with the antenna ANT. And 11
14 is a memory consisting of a vehicle type storage section 12 and a data table 13 for each part, and 14 is a display section. In addition, in FIG. 4, 6 indicates an automatic parts assembling device.

As shown in FIG. 5, the vehicle type storage section 12 includes three memory sections 12+. With a small capacity memory consisting of 12g and 12s, the light station 4 receives vehicle type information (one of the symbols A, B, etc. in the figure) sent from a control unit not shown. When the next car type information comes, it is always stored in the first memory section 12+, and when the next car model information comes, the data stored first is stored in the second memory section 1.
h, and the next data is pushed out to the first memory section 12.h. is stored in In addition, each work station 5L
~5o, the data stored in the D card 3 is read out, and in the order of reading, the memory sections 12+, 1 of the storage unit 12 of each work station 51~57 are read out.
2z, 123. In this case, similar to the writing in the write station 4, the data is stored in an extrusion manner. And in Light Station 4,
The vehicle type information is written in the ID card 3 attached to each workpiece 2. In addition, as shown in FIG. 6, the data table 13 of the controllers 01 to C1 provided at each work station 5, to 5 includes vehicle type information, parts information (type a in the figure) and tool information via an address. It has been stored in advance in association with ? In the production instruction system configured in this way, when the engine 2 is conveyed by the conveyor 1, the controller C0 installed in the light station 4 executes the procedure shown in FIG. 7(A). The vehicle type information is written to the 10 card 3 attached to the engine 2, and at the same time, the vehicle type information is written to the vehicle type storage section 12. Once this is complete, the first work station 5
7 (B) in the controller C.
The data table 13 is read out according to the procedure shown in FIG. The automatic parts assembling device 6l assembles predetermined parts into the engine 2 based on the instructions. Thereafter, engine 2 is operated at work station 5g in the same manner. 5-...
・51 and so on are sent sequentially.

For example, if the controller Ct at work station 5■ becomes unable to read the data table 13 for some reason, the controller installed at the work station 51 immediately before the controller Ct? The vehicle type storage section 12 of the first vehicle is read out. For example, in the example shown in FIG. 5, the vehicle type corresponding to the work station 5t is A, which is stored in the memory section 123 in the vehicle type storage section 12 of the controller C1. Therefore, by doing as described above, the necessary information can be obtained, and from this, it is possible to manually instruct the automatic parts assembling device 6■ on the predetermined work content.
Since the predetermined assembly is performed based on this, the entire automatic assembly line does not stop, unlike in the past. By the way, if a defective product occurs in the middle of an automatic assembly line, the defective product may be thrown out of the line or a corrected product may be put into the line midway.In such a case, the engine 2 conveyor However, according to the second aspect of the invention, the contents of the vehicle type storage section l2 can be cleared when taking out the engine, and the read operation can be performed when reinserting the engine. This makes it possible to eliminate misalignment between the engine 2 and the assembled parts. 4. Although the above-described embodiments are all production instruction systems for lines that automatically assemble parts to workpieces such as engines, the present invention is not limited to this, and can be widely applied to automatic production lines.

〔Effect of the invention〕

As explained above, according to the inventions described in claims (1) and (2), even if the contents of the ID card cannot be read out for some reason at the work station, the contents of the ID card can be automatically backed up. It is possible to avoid stopping the entire production line. In particular, claim (2)
According to the invention described in , there is an advantage that it is possible to deal with the occurrence of defective products in the middle of an automatic production line.

[Brief explanation of the drawing]

1 to 7 show embodiments of the present invention, and FIG. 1 is a first embodiment of the present invention.
Figure 2 (A) is a diagram showing an example of the structure of a production instruction system in an automatic production line according to the invention, Figure 2 (A) is a diagram showing an example of in-process information written on an ID card used in the system, Figure 2 (B) is FIG. 2 is a diagram showing a memory of a line computer. FIG. 3 is a diagram showing an example of the structure of a production instruction system in an automatic production line according to the second invention, FIG. 4 is a diagram showing an example of the structure of the controller, and FIG. 5 is an example of the structure of the vehicle type storage section. FIG. 6 is a diagram showing an example of the structure of a data table, and FIGS. 7(A) and (B) are flowcharts showing write and read operations in the controller. FIG. 8 is a diagram showing the structure of a production instruction system in a conventional automatic production line, and FIG. 9 is a diagram showing the memory contents of an ID card used in the system. 1... Transfer device (conveyor), 2... Work (engine), 3... ID card, 5. ~5,l...Work station controller, 6,6l~6o...Work equipment (automatic parts assembly equipment), 7...Line combination tool, 8.11
...Memory, C, C. ~C1...controller. Applicant Shinmei Kogyo Co., Ltd. Agent Patent Attorney Hideo Fujimoto Figure 5 A BA CB DC Procedural Amendment (Method) March 2010 Nora 1. Case description: Patent Application No. 297155 2. Name of the invention Production instruction system that can be pressed on an automatic production line 3. Relationship with the case of the person making the amendment

Claims (2)

[Claims] (1) Each of the plurality of work stations provided along the transport device that transports the workpieces is equipped with work equipment and a controller equipped with a reading device, and the ID card attached to each workpiece being transported is In a production instruction system for an automatic production line, in which a controller at each work station reads written information, and the controller instructs each work equipment to perform work based on the read content, each of the ID cards In addition to writing in-process information for each work station in which parts information and tool information are associated with vehicle type information, a line computer is also provided, and the in-process information written in each ID card and the in-process information written in each ID card are stored in the memory of this line computer. A production instruction system for an automatic production line characterized by storing the same information. (2) Each of the plurality of work stations provided along the transport device that transports the workpieces is equipped with work equipment and a controller equipped with a reading device, and the ID card attached to each workpiece being transported is In a production instruction system for an automatic production line, in which a controller at each work station reads written information, and the controller instructs each work equipment to perform work based on the read content, each of the ID cards A production instruction system for an automatic production line, characterized in that vehicle type information is written in the controller, and parts information and tool information are stored in the memory of each controller in association with the vehicle type information.