JPH066098A - Electronic part mis-installation preventing method and device - Google Patents

Abstract

PURPOSE:To enable mounting errors to be detected and adequately corrected before a mounter is made to start operating by a method wherein the selection of mounter controlling program tapes, electronic parts, and printed boards and the check of the arrangement sequence of part cases to part cassettes are carried out by comparing and collating bar codes with each other. CONSTITUTION:A mounter controlling program tape discriminating bar code, a part arrangement table discriminating bar code which tells the arrangement of electronic parts inside a cassette, and a printed board specifying discrimination bar code are provided. Data inputted from a personal computer 15 are stored in a memory 16 inside a main body 14. A collating program and data needed for collation are inputted from the personal computer 15. Bar code data read out by a bar code reader 13 are also stored in the memory 16. A control section 17 compares data stored in the memory 16 with each other in accordance with the collating program. Basing on the comparison result concerned, a display 18 and an alarm 19 are energized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component erroneous mounting prevention method and apparatus, and more particularly to an electronic component for preventing erroneous loading when inserting an electronic component into a printed circuit board by an automatic electronic component mounting machine. The present invention relates to a method and a device for preventing component erroneous mounting.

[0002]

2. Description of the Related Art Electronic component automatic mounting machines are often used to insert (ie, mount) electronic components into a printed circuit board.

FIG. 7 is a perspective view of an essential part showing an example of a conventional electronic component automatic mounting machine. In the figure, an electronic component automatic mounting machine (hereinafter simply referred to as mounting machine) 1
Has a plurality of component boxes 3 accommodating the electronic components 2 in a taped state, and a parts cassette 4 on which the component boxes 3 are placed. The electronic component 2 housed in the component box 3 is guided by the supply guide 5 and supplied to the insertion head (not shown).

On the other hand, the printed circuit board on which the electronic parts are mounted is loaded on a storage rack (not shown), guided by the printed circuit board transfer arm 6 and transferred onto the XY table 7. The XY table 7 drives the printed circuit board in the XY directions in accordance with a planned mounting program, and aligns the planned electronic component insertion position so that it is directly below the insertion head.

The printed circuit board on which the planned electronic components have been inserted is carried out by the unloader 8 to the next step. Each of the above components is controlled according to the procedure written on the program tape set in the controller 9.

The work procedure executed by the worker in the mounting work is as follows. At the time of starting the mounting machine 1 or switching the model of the printed circuit board, first, a program tape according to the model and process is selected and set in the control device 9 of the mounting machine 1. Following this, electronic parts are selected according to the parts list corresponding to the model or process, and the parts box 3 containing the electronic parts is placed in the parts cassette 4 in a predetermined arrangement order. Finally, the accommodation rack on which the printed circuit boards are loaded is arranged in conformity with the transfer arm 6, and the mounting machine 1 is activated.

[0007]

In the above-mentioned mounting work by the mounting machine, the selection and replacement work of the program tape and a large number of component boxes performed at the time of starting the mounting machine or changing the model are extremely complicated. Occasionally, parts boxes were misaligned or program tapes were incorrectly installed. Such an error may not be discovered until the inspection after the component mounting is completed, and there is a problem that a defective substrate in which the component is not mounted as planned may occur.

The object of the present invention is to solve the above problems,
It is an object of the present invention to provide an electronic component erroneous mounting prevention method and apparatus which can detect the error and notify the operator if the selection of the program tape, the printed circuit board, the electronic component, etc. is incorrect.

[0009]

SUMMARY OF THE INVENTION To solve the above problems and to achieve the object, the present invention provides a bar code for identifying a mounting machine control program tape, and an array table showing an array of electronic parts in a parts cassette. The identification bar code and the identification bar code for identifying the printed circuit board are collated with the reference data for collation, and when the data indicated by each bar code and the reference data match, the sequence listing The barcode indicating the arrangement sequence information for each electronic component included in is compared with the electronic component identification barcode added to the parts box in the parts cassette, and as a result of the comparison, it is confirmed that the barcodes match. The first is to issue an instruction to operate the mounting machine when
It is a feature of.

Further, the present invention is a program tape identification bar code for mounting machine control, an identification bar code of an array table showing an arrangement of electronic parts in a parts cassette, an identification bar code for identifying a printed circuit board, and an electronic part. A bar code reader for reading a bar code for identifying parts and a bar code indicating array sequence information for each electronic part included in the array table, and an input unit for inputting reference data to be compared with each bar code. The point that means for comparing the data shown by each of the read bar codes and the reference data to determine a match or mismatch and a means for outputting an operation instruction of the mounting machine when the data match are provided. There are two characteristics.

[0011]

According to the present invention having the above characteristics, it is possible to confirm whether the reference data and the bar code data match or not. Therefore, if there is an error in the selection of the program tape or the arrangement order of the electronic components in the parts cassette, the mismatch of the data is detected, and the error can be corrected based on the detection result.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the mounting machine 1 described with reference to FIG. 7 is used, and in the following description, the same symbols as those in FIG. 7 indicate the same or equivalent parts. FIG. 3A is a perspective view showing a rack accommodating printed circuit boards.
FIG. 9B is a diagram showing an example of a model management table placed on the rack.

In FIG. 3A, a predetermined number of printed circuit boards 9 are housed in a rack 10. This rack 1
0 is arranged so as to face the transfer arm 6 and is sequentially transferred into the mounting machine 1. A model management table 11 is placed on the rack 10. In the model management table 11, as shown in FIG. 3B, the model and type of the printed circuit board 9, that is, the bar code 21 as identification information for identifying the printed circuit board and the process name 22a for each process. , Table number 22
The bar code 22 indicating the number b and the program tape number 22c for mounting machine control is entered.

The table number 22b indicates the arrangement order of the component boxes 3 arranged in the parts cassette 4 for mounting electronic components on the printed circuit board 9 housed in the rack 10 on which the model management table 11 is placed. This is information for identifying the parts array table shown.

In this way, the printed circuit board 9 stored in the rack 10 can be identified by the bar code 21,
A bar code is a table number of a sequence table showing a process in which the printed circuit board is used, and an array of the component boxes 3 of electronic components mounted in the process, and a program tape number used for controlling the mounting machine in the process. It can be identified by 22.

FIG. 4 is a perspective view showing a program tape for controlling the mounting machine. The bar code of the bar code label 31 attached to the program tape 12 includes a process name and a program tape number. .

FIG. 5 is a perspective view showing the parts cassette 4 and the parts box 3 accommodated in the parts cassette 4, and the bar code label 41 attached to the parts box 3 has a part name and a part name for identifying the parts. Information such as rating and manufacturer's name is shown in bar code.

FIG. 6 is a diagram showing an example of the electronic parts arrangement table. In the electronic parts arrangement table, a bar code 51 indicating a table number as identification information, parts names and ratings described in the order of arrangement, and a manufacturer name. , And information 52 indicating the arrangement order are indicated by a bar code. This electronic component arrangement table may be arranged at any place of the mounting machine 1, and the rack 1
They may be arranged side by side in the model management table 11 above 0.

3 to 6, the bar code has the same pattern as that of a well-known bar code.
Detailed illustration is omitted.

Next, a collating device for reading the bar code and confirming that the selection of the program tape and the selection and arrangement of the parts box are correct based on the result will be described.

FIG. 1 is a block diagram showing the structure of the collation device. In the figure, the collating device comprises a bar code reader 13 and a main body 14. Further, a personal computer (hereinafter referred to as a personal computer) 15 can be connected to the main body 14 as an external input device, and data input from the personal computer 15 is stored in a storage unit 16 in the main body 14. From the personal computer 15, a collation program and data necessary for collation are input. The barcode information read by the barcode reader 13 is also stored in the storage unit 16.

The control unit 17 compares the data stored in the storage unit 16 according to the collation program and activates the display unit 18 and the alarm unit 19 based on the comparison result. The control unit 17 compares the data input from the personal computer 15 with the data read by the barcode reader 13, or compares a plurality of data read by the barcode reader 13.

Next, the collating operation by the collating device having the above-mentioned structure will be described with reference to the flow chart of FIG. Before entering the process of this flowchart, first, the personal computer 15 is provided with a collation program and data necessary for collation.
To the storage unit 16.

That is, the collation operation described according to the flowchart of FIG. 2A is performed with reference to the collation data input from the personal computer 15. As the verification data, the model and type of the printed circuit board, the process identification code, the table number, and the program tape number are input.

In step S1, it is determined whether or not the information contained in the bar code 21 of the model management table 11 read by the bar code reader 13 and the model and type of the printed circuit board input from the personal computer 15 match. to decide. If they match, the process proceeds to step S2.

In step S2, the bar code reader 13
It is determined whether or not the information contained in the bar code 22 of the model management table 11 read by means of the process identification code entered from the personal computer 15, the table number, and the program tape number match. If they match, it is determined that the printed circuit board 9 suitable for the mounting process to be carried out is loaded on the rack 10, and the process proceeds to step S3.

In step S3, the bar code reader 13
It is determined whether or not the bar code of the bar code label 31 of the program tape 12 read by and the program tape number input from the personal computer 15 match. If they match, the process proceeds to step S4.

In step S4, the bar code reader 13
Bar code 51 read by and the personal computer 15
It is determined whether or not the table number input from is matched.
If they match, the process proceeds to step S5.

In step S5, the bar code 52 of the electronic parts array table and the bar code of the bar code label 41 of the parts box 3 are sequentially read to determine whether they match each other. This judgment is based on all the parts boxes 3 contained in the parts cassette 4.
And every one of the bar codes 52 in the electronic component array table are compared one by one.

If the determination in step S5 is affirmative, the process proceeds to step S6, and an instruction to display the work start permission is output to the display unit 18 of the collating device.

If any of the determinations in steps S1 to S5 is negative, the process proceeds to step S7, and an instruction for performing a display notifying the mismatch is output to the display unit 18 of the collating device. At the same time, an instruction to sound the buzzer for notifying the disagreement is output to the alarm unit 19. These display units 18
It is not always necessary to carry out both the display in step 2 and the notification by the buzzer in the alarm unit 19, and it is also possible to notify inconsistency by either one.

In the determination procedure in step S5, the component box 3 and the bar code 52 are collated one by one, but the invention is not limited to this and the following procedure may be used. First, in the data input before the process of the flow chart, the name of the electronic component to be mounted and its array are input, and the storage address of this component name and array data is stored in association with the table number. . As a result, according to the table number 51, data can be read from the storage area for the component name and the array data.

Therefore, the data indicating the name and arrangement of the electronic parts is read from the storage section 16 into the work area of the control section 17 by reading the table number 51, and the parts box 3
It can be compared with the bar code added to. That is,
In the collating operation for the process of step S5, only the bar code added to the table number 51 and the parts box 3 need be read, and the bar code 52 reading operation is unnecessary.

Next, the second embodiment will be described. In the above-described embodiment, the collation data and the program tape 1 are used with the collation data input from the personal computer 15 as a reference.
The barcode 2 and the barcode 51 showing the table number of the sequence listing shown in FIG. 6 were collated. In the second embodiment,
Based on the model management table, the data read from the bar code in the model management table by the bar code reader 13 is compared with the bar code of the program tape 12 and the bar code 51 indicating the table number of the array table shown in FIG. I am trying to do it.

The matching operation in the second embodiment is shown in FIG.
This will be described with reference to the flowchart of (b). Before entering the process of this flowchart, a collation program and data necessary for collation are first input from the personal computer 15. The data required for matching is only the model and type of the printed circuit board.

In FIG. 2B, in step S10, the information contained in the bar code 21 of the model management table 11 read by the bar code reader 13 and the model and type of the printed circuit board input from the personal computer 15 are entered. It is determined whether and match. If they match, the process proceeds to step S11.

In step S11, the bar code reader 1
The contents of the barcode 22 of the model management table 11 read in step 3 are stored in the storage unit 16.

In step S12, the bar code reader 1
It is determined whether or not the bar code of the bar code label 31 of the program tape 12 read by 3 and the program tape number read from the bar code 22 of the model management table 11 match. If they match, step S1
Go to 3.

In step S13, the bar code reader 1
It is determined whether or not the bar code 51 of FIG. 6 read by 3 and the table number read from the bar code 22 of the model management table 11 match. If they match, step S
Proceed to 14. The processing of steps S14, S15, and S16 is the same as the processing of steps S5, S6, and S7 of FIG.

In the above collating operation, for example, the collation device 14 and the bar code reader 13 are carried by the operator, the rack 10 is already arranged at a predetermined position of the mounting machine 1, and the cassette 4 is inserted.
It is performed in a state where the component boxes 3 are arranged.

As described above, in this embodiment, the operation of the mounting machine is started after confirming that the arrangement of the printed circuit board, the program tape, the electronic components, and the electronic components matches the reference data. it can.

In the present embodiment, the reference data for collation is input from the personal computer, but the input device may be integrated into the main body of the collation device and input from the input device.

[0043]

As is apparent from the above description, according to the present invention, the selection of the mounting machine control program tape, the electronic component, the printed circuit board, and the arrangement order of the component boxes of the electronic components to the parts cassette are correct. Whether or not it is wrong can be easily checked by comparing and collating barcodes.

Therefore, even if an error occurs due to the complexity of work at the time of starting the mounting machine or switching the model, the error can be detected prior to the operation of the mounting machine, and appropriate measures can be taken.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a matching device.

FIG. 2 is a flowchart showing the operation of the embodiment.

FIG. 3 is a perspective view showing a printed circuit board and a rack for storing the printed circuit board and an example of a model management table.

FIG. 4 is a perspective view of a mounting machine control program tape.

FIG. 5 is a perspective view of a parts box and a parts cassette accommodating electronic parts.

FIG. 6 is a diagram showing an example of a sequence table.

FIG. 7 is a perspective view showing an example of a mounting machine.

[Explanation of symbols]

3 ... Parts box, 4 ... Parts cassette, 9 ... Printed circuit board, 10 ... Rack, 11 ... Model management table, 12 ... Program tape, 13 ... Bar code reader, 14 ... Collation device, 15 ... Personal computer, 16 ... Storage unit, 17 ... control part, 18 ... display part, 19 ... alarm part, 21,
2, 31, 41, 51 ... Bar code

Front page continuation (72) Inventor Takashi Kijima 1st floor of Meiji Life Building, 1st floor, 6th Shimizu Koji, Wakabayashi-ku, Sendai City, Miyagi Prefecture

Claims (5)

[Claims] 1. An electronic component erroneous mounting prevention method for preventing erroneous mounting of electronic components in a mounting operation by an electronic component automatic mounting machine, wherein the program tape identification bar code and parts provided to a mounting machine control program tape. In order to identify the sequence table identification barcode given to the sequence table showing the sequence of the electronic parts in the cassette, and the printed circuit board, the identification barcode given to the management table is used as reference data for verification. When the step of collating and the data contained in each bar code and the reference data match, the bar code indicating the array sequence information for each electronic part contained in the array table is stored in the parts cassette. The step of collating with the barcode for identifying the electronic parts attached to the box, and as a result of the collation, the operation instruction of the mounting machine is issued when the agreement of the barcode is confirmed. A method for preventing erroneous mounting of electronic components, which comprises the steps of: 2. The reference data for collation is data input from an external input means, and the step of inputting this data from the external input means is further included. Electronic component mismounting prevention method. 3. The reference data for collation is a bar code assigned to a management table together with an identification bar code for specifying the printed circuit board, and the method further includes the step of reading the bar code. The method for preventing erroneous mounting of electronic components according to claim 1, wherein: 4. An electronic component erroneous mounting prevention device for preventing erroneous mounting of electronic components in a mounting operation by an electronic component automatic mounting machine, wherein the program tape identifying bar code and parts provided to the mounting machine control program tape. The sequence table identification barcode attached to the sequence table showing the arrangement of the electronic components in the cassette, the identification barcode attached to the management table to identify the printed circuit board, the electronic component identification barcode, and A bar code reader for reading a bar code indicating array sequence information for each electronic component included in the array table, an input unit for reference data to be compared with each bar code, and each bar code read A means for comparing the indicated data and the reference data to determine whether they match or not, and when the respective data match, give an operation instruction for the mounting machine. Electronic component mounting errors preventing apparatus characterized by comprising a means for force. 5. The electronic component erroneous mounting prevention device according to claim 4, wherein the barcode reader is used as the reference data input means.