JPH01297897A - Component mounting apparatus - Google Patents

Abstract

PURPOSE:To achieve unmanned production of a base plate by arranging a control section which stores mounting status of each plate and given operation control signals to a mounting machine. CONSTITUTION:A printed circuit board 6 supplied from a base plate feeder 5 is stopped underneath a board data reader 7. The reader 7 reads bar codes on the board 6 and sends the data to a control computer 9. From the data, the computer 9 searches whether the board 6 have caused a component insertion error or not. In case the board has experienced the error, the computer 9 orders an inserting machine 8 to start inserting from next block number of the error block number. After the data are read, the board 6 is send to the inserting machine 8 and components are inserted thereon. If an insertion error takes place therein, the inserting machine 8 is stopped and the error block number is sent to the computer 9. The computer 9 stores the data and the board number. On the other hand, the board 6 is ejected from the inserting machine 8, and sent to a board accumulator 11 for storage.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a component mounting method that enables unattended continuous operation at night by managing and recording error information during component mounting and storing error boards separately. It is related to the device.

Conventional technology A component mounting device in this field is used to insert electronic components 2 ・＼
We will explain the combination of -now electronic component insertion machine and a printed circuit board with - code attached as board information as a model.

First, the conventional configuration will be explained based on the drawings.

FIG. 3 is a diagram showing the basic configuration of a conventional electronic component mounter system, as viewed from above.

In the figure, 1 is a board supply device, and a large number of printed circuit boards 2 are stored therein. When inserting, the printed circuit boards 2 are sent out one by one from here to three electronic component insertion machines. The basic function of the electronic component insertion machine 3 is to hold the electronic components in their cases and insert them one by one into the printed circuit board 2 that is sent out, and when the insertion is finished, the printed circuit board 2 is automatically transferred to the subsequent process. send out. Further, four conveyors are used for connection adjustment in the flow direction with the above two devices and the subsequent process.

Now, in a mounting system having such a configuration, the most important thing to pay attention to is the insertion error of the electronic component insertion machine 3 and how to deal with it. As indicated by the word insert,
Electronic components always come with leads 3 and 7, and the basic operation of the electronic component insertion machine 3 is to insert these leads into the holes in the printed circuit board 2. However, component leads are easily bent, and the positional relationship between the component and the board is established through many mechanical mechanisms.
A certain amount of deviation will occur. These sometimes result in insertion errors, which are inevitable to varying degrees in current insertion machines.

Therefore, the conventional method for dealing with this insertion error is to first automatically stop the insertion operation and issue a warning sign. Then, the worker visually checks the inserted state of the electronic component, does what he deems necessary, such as not removing it or holding the component, and then presses the re-insertion button to insert it correctly. After that, you can switch back to automatic insertion.

It is essential to visually check the error status in case of a tab or insertion error.

FIG. 4 is a flowchart showing this flow. The main flow represents the flow of producing one board. Among these, the subflow "insertion" represents the insertion operation in detail as a subflow. The key point of this process is that, as mentioned above, a human needs to make a decision as to whether or not to reinsert.

As a result, it is no longer possible to leave the entire flow to a machine.

Problems to be Solved by the Invention In the insertion machine system that exceeds the above problems, completely unmanned operation has not been achieved because it is necessary for a person to visually check insertion errors.

However, in order to increase operating efficiency and to effectively utilize unattended times such as nights and holidays, there is a need for a realistic unmanned automatic insertion machine system that is premised on the occurrence of insertion errors.

Therefore, in the present invention, the basics of the conventional insertion machine are -1-1.
By clearly distinguishing between an insertion error board and a normally inserted board, the present invention provides a system that can eliminate the need for human labor related to insertion errors.

Means for Solving the Problems In order to solve the above problems, in the present invention, the substrate -51\-
The present invention is characterized by being equipped with a control section that stores the number of 7 sheets and the mounting status and instructs the mounting machine to perform the mounting operation.

Function: Based on the above features, the present invention is capable of sending the number of the block when an insertion error occurs to the control unit, and storing the board number and the block number of the error as a pair.

Therefore, there is no need to visually check and correct the insertion error board on the spot, and it is sufficient to store it in another storage device for later correction. By doing this, continuous automatic operation can be realized even when unattended, such as at night.

Embodiment Hereinafter, an electronic component insertion machine and its system, which is an embodiment of the present invention, will be described with reference to the drawings.

First, FIG. 1 is a diagram showing the configuration of an electronic component inserter system according to the present invention, as viewed from above. In the figure, reference numeral 5 denotes a board supply device, and the function of storing and supplying printed circuit boards 6 is the same as the conventional one. 7 is a board information reader, which is essential for the present invention. 8 is an electronic component insertion machine which has the same structure as the conventional one. Reference numeral 9 is a management computer which is the central part of the present invention.

1o is a rotating device, and 11 is a substrate storage device 12, which is a conveyor.

The flow of the board 6 in the system configured as above will be explained. In FIG. 1, first, the printed circuit board 6 flowing from the board supply device 5 is stopped under the board information reader 7. As shown in FIG. A board number is written on the printed circuit board 6 in advance and a steam bar code is attached thereto. Then, the reader 7 reads this barcode and the management computer 9
send to

From this data, the 1fU computer 9 searches whether the board 6 has previously undergone an insertion operation or caused an insertion error, and in the case of an insertion error board, inserts from the block number next to the error block number. A command is given to the insertion machine 8.

If no insertion operation has been received yet, no command is issued. In any case, after the information has been read, the board 6 is sent to the inserter 8 and undergoes an inserting operation.

If an insertion error occurs here, the insertion machine 8 will stop 7 /\
-7 and sends the error block number to the management computer 9. The management computer 9 associates this information with the board number and stores it. On the other hand, the insertion of the substrate 6 is stopped after an error occurs, and after being ejected from the insertion machine 8, the flow is changed through the rotation device 10, and the substrate 6 is sent to and stored in the substrate storage device 11.

Of course, boards with no insertion errors are sent to the subsequent process as usual.

After the insertion of the through board is completed in this way, only the insertion error boards are stored in the board storage device 11, so they can be fed again from the board supply device 5 according to the convenience of the process. This reinsertion step is exactly the same as the insertion step described above.

FIG. 2 is a flowchart showing the flow of the substrate described above from the viewpoint of operation. Compared to the previous version, the main flow has two additional points: reading the barcode on the board and stocking insertion errors. On the other hand, in the sub-flow, there is no decision as to whether or not to re-insert as in the past, but all decisions are made by the mounting machine or the management computer, making it possible to produce boards without any personnel.

Effects of the Invention As described above, the present invention has a control unit that records management information for each board and gives instructions during mounting, and a control unit that transfers the mounted board to the subsequent process and also controls the control unit in case of insufficient mounting. It has a board storage device with the function of storing information on boards with mounting errors, and can record information on boards with mounting errors in the control unit and store them separately from boards that have been successfully mounted. The production of circuit boards can be completely automated. Additionally, machine downtime due to mounting errors can be eliminated, leading to improved operating rates.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an electronic component inserter system to which a component mounting apparatus according to an embodiment of the present invention is applied, FIG. 2 is a flowchart of the same, and FIG. 3 is a block diagram of a conventional electronic component inserter system. FIG. 4 is a flowchart of a conventional insertion process. 1... Board supply device, 2... Printed circuit board,
3...Electronic component insertion machine, 4...Conveyor, 5...Group 9/ Board feeding device, 6...Printed circuit board, 7...・
... Board information reader, 8... Electronic component insertion machine,
9... Management computer, 10... Rotating device, 11... Board storage bag fL 12...
····Conveyor. Name of agent: Patent attorney Toshio Nakao and one other person I/
)'Oto000-9 ;CJ Kuha No. 4 Main 70-

Claims (1)

[Claims] A board feeding device that holds boards on which components are mounted and can feed these boards one by one, a board information reading device that reads information marks provided on the surface of the board, and a board information reading device that reads management information of each board. A control unit that records and gives instructions when mounting components on a board, and a board storage device that has the function of sending boards on which component mounting has been completed to subsequent processes and storing them if the mounting is insufficient are installed externally. Parts loading device.