JPH03120408A - One-article collation inspection instrument - Google Patents

Abstract

PURPOSE:To eliminate inspection omission and to shorten the time required to locate and collate a component to be inspected by displaying various items and the insertion position of an electronic component which are read out of a storage medium on the screen of a CRT, and collating them with an electronic component on a board to be inspected. CONSTITUTION:A board inspection table 2 holds the board 1 to be inspected at a specific position. The storage medium is stored with the correct shapes, insertion directions, specification items, and insertion positions of all electronic components. A controller 7 reads the various items and insertion position of the electronic component out of the storage medium to display the correct shape, insertion direction, and specification similarly on the CRT 4, and also allows a component irradiating device 3 to irradiate the insertion position of the electronic component. An input device such as a keyboard 8 or mouse 9 is used to input a display on the CRT 4 corresponding to the electronic component viewed at the irradiated insertion position or whether or not there is the display to the controller 7. The controller 7 decides whether or not the input data match the read data on the electronic component to decide whether or not the electronic component is inserted into the specific position and whether or not the insertion direction and specifications are correct.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a one-item verification inspection device used for one-item verification inspection in the manufacturing process of printed circuit boards.

[Conventional technology]

When mass-producing boards with electronic components mounted on them, in order to minimize the occurrence of defective products, a pre-inspection is carried out to determine whether the designated electronic components are inserted in the designated positions and in the designated direction before mass production begins. There is a need to.

This inspection is carried out by an inspector who looks at each part one by one and compares it with the first workpiece completed by that machine and the standard product made in advance for each insertion machine in the manufacturing process in a mass production system. It is called a one-item verification inspection because it is carried out using a procedure in which a machine determines whether or not a prescribed electronic component is inserted in a prescribed position and in a prescribed direction.

In addition, even during mass production, in order to detect as early as possible the occurrence of defective products due to component insertion errors, etc., and to minimize the occurrence of defective products, we sample the boards to be inspected at an appropriate rate and A one-item verification inspection similar to the above is performed.

[Problem to be solved by the invention]

As mentioned above, conventional one-item verification inspection requires the preparation of standard products in advance, and the pre-made standard products must be carefully prepared to avoid errors. In some cases, a large number of standard products are required, which requires a lot of time and effort to create the standard products.

In addition, because the inspector compares and contrasts the board to be inspected with the standard product and compares each component one by one, it takes time to find the component on the board to be inspected or the standard product, which is inefficient. . In particular, when the number of parts increases, the time required for inspection becomes significantly longer, placing a large mental and physical burden on the inspector.

Furthermore, since test accuracy depends on the examiner's attentiveness and persistence, this is disadvantageous in terms of increasing reliability. In other words, as the number of electronic components to be inspected increases, the attentiveness decreases due to habituation, leading to overlooking components to be inspected or making erroneous judgments based on erroneous or uncertain memories based on preconceptions. More likely.

The present invention has been made in view of the above circumstances, and enables the inspection of all electronic components to be inspected without omission, shortens the time required to discover and collate the inspected components, and eliminates the need for uncertain memory. It is an object of the present invention to provide a one-item collation inspection device that can prevent erroneous judgments based on erroneous memorization.

[Means to solve the problem]

In order to achieve the above object, the one-item verification inspection device according to the present invention includes a board inspection table that holds a board to be inspected at a predetermined position, and a board inspection table that holds a board to be inspected at a predetermined position, and a board inspection device that detects any one point on the board to be inspected held on the board inspection table. A component irradiation device to irradiate, a CRT placed near the board inspection table, and a storage medium that stores the correct shape, insertion direction, specifications, and insertion position of all electronic components to be mounted on the board to be tested. , read out the specifications and insertion positions of each electronic component in a predetermined order from this storage medium, and
a control device that simultaneously displays the correct shape, insertion direction, and specifications of the electronic component read out and the incorrect shape, insertion direction, and specifications of the electronic component, and causes the component irradiation device to irradiate the insertion position of the electronic component; and an input device for inputting to a control device the display or absence of the display on the CRT corresponding to the electronic component visually recognized at the inserted position, and the control device inputs the input data of the input device and the electronic component read out. It is configured to determine whether the electronic component is inserted into a predetermined position, the direction of insertion, and whether the specifications are correct or incorrect by determining whether the electronic component matches or does not match the data.

[Effect]

In the one-item verification inspection device of the present invention, the specifications and insertion position of each electronic component read from the storage medium are displayed on the CRT screen, and the display is compared and contrasted with each electronic component on the board to be inspected. There is no need to make products.

Further, the control device displays all the electronic components to be inspected on the CRT in a predetermined order, and a spotlight illuminates the insertion position of the electronic component to be inspected.

Furthermore, the correct shape, insertion direction and specifications of the electronic component read from the storage medium and the incorrect shape, insertion direction and specifications of the electronic component are simultaneously displayed on the CRT. Since the display position of the specification and the display position of the incorrect shape, shape, insertion direction, and specification are appropriately replaced depending on the order of display, it is no longer possible to have a preconception that the display at a certain position is correct.

In the present invention, the order of the electronic components to be tested can be freely set. For example, by selecting and testing only the resistors in order, it is possible to stably read the color code indicating the specifications of the resistors. becomes possible.

In addition, in the present invention, the method by which the inspector obtains the inspection results is not particularly limited, and for example, the method for obtaining the inspection results may be printed out on a printer each time the inspection of each electronic component is completed, or after the inspection of all electronic components is completed. When incorrect attachment is detected, the control device can be configured to activate an alarm device to issue an alarm, or the control device can cause a display on a CRT to immediately notify the inspector of the detection of incorrect attachment.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram of a single-crystal matching inspection device according to an embodiment of the present invention.

This product verification inspection device includes a board inspection table 2 that holds a board to be inspected l in a predetermined position, and a component that is movable in the horizontal direction above the board to be inspected l held on the board inspection table 2. It is equipped with an irradiation device 3. This component irradiation device 3 is fixed to the upper side of the board inspection table 2, and includes a pair of front and rear X-direction guide rails 11 that guide the movement of the component irradiation device 3 in the Y direction (left and right directions in the figure), and both Y-direction guides. The board inspection table 2 is mounted on the upper side of the rail 11 so as to be movable in the Y direction, and is connected to the board inspection table 2 via an X direction guide rail 12 that guides the movement of the component irradiation device 3 in the Supported by Although not shown, on the rear side of the rear X-direction guide rail 11 is a Y-direction drive device that reciprocates the X-direction guide rail 12 and the component irradiation device 3 in the Y direction, and a Y-direction drive device built into the X-direction guide rail 12. , and an X-direction drive device that reciprocates the component irradiation device 3 in the X direction.

Near the board inspection table 2, a CRT 4 and a control device 7 are placed one above the other, and the control device 7 includes a disk driver 13, an input keyboard 8, an input mouse 9,
4 and a printer 15 are connected. Disk driver 1
3 stores a system floppy 14 storing a control program for controlling the operation of the control device 7, and the correct shapes, insertion directions, specifications, and insertion positions of all the electronic components 5 to be mounted on the board I to be inspected. The data floppy disk 6 is loaded. The operation of this disk driver 13 is controlled via the control device 7 in accordance with the control program of the system floppy 14.

FIG. 2 is a flow diagram showing an outline of the control program of the control device.

In this control program, after starting, the operator operates the keyboard 8 to input necessary information such as the inspection die, the name of the inspector, and the board identification number to be inspected, and then inputs a start command (Sl). The correct shape, insertion direction, specifications, and insertion position of the first electronic component 5 are read out from the data floppy disk 6 (S2), and the figure A showing the correct shape and insertion direction of the first electronic component 5 is displayed on the screen of the CRT 4. Figure B showing the correct shape and incorrect insertion direction of the electronic component 5; Display C1 showing the correct specifications of the electronic component; Display D-E showing two incorrect specifications of the electronic component 5; and Display F showing the insertion position. (S3), drive the X-direction drive device and the Y-direction drive device to move the component irradiation device 3 to a position on the XY coordinates corresponding to the correct insertion position, and irradiate light downward (S4). . After this, the screen displays whether or not the electronic component 5 is inserted in the irradiated insertion position and whether the inserted electronic component 5 is the one displayed on the screen. Input information on the matching results, such as which figure A-B corresponds to and which specification displayed on the screen, by operating the keyboard 8 or clicking with the mouse 9 (35), and Based on this input information, determine whether there is a mistake or not (S6).
If there is a mistake, the color of the screen is changed and an alarm attached to the control device 7 is activated to notify the inspector of the mistake (S7). Also, after this, for example, “1
5, ``Incorrect key operation'', ``2 Parts missing'', ``3 Wrong parts'', ``4 Wrong polarity'', and ``5 Insert into empty round''.
Display the following error conditions on the screen of the CRT 4 (S8), and after confirming which of these error conditions corresponds to the cause of the error being determined, the inspector clicks on the applicable error condition with the mouse 9. When the error condition is inputted (S9), the specified error condition is recorded in the control device 7 (SIO). After this, or if it is determined that there is no mistake in the step of determining the presence or absence of a mistake (S6), it is determined whether or not there is an uninspected electronic component 5 (511). If there is, the next electronic component 5 is moved up one by one in order (S12), and the correct shape, insertion direction, specification, and insertion position of the electronic component 5 are read out from the data floppy 6 (S12). Return to S2).

The order of the electronic components 5 to be inspected can be freely set; for example, only resistors may be selected in order for inspection.

In the step (S3) of displaying the second and subsequent electronic components 5 to be inspected on the screen of the CRT 4, the position of the correct figure A of the electronic component 5 displayed on the screen of the CRT 4 and the position of displaying its correct specification C are respectively They are replaced as appropriate depending on the position and display order of the incorrect figure B or the incorrect specification D-E.

If it is determined that there are no uninspected electronic parts in the step of determining the presence or absence of uninspected parts (S11), "End" is displayed on the screen. After printing out the name and test results (314), the process ends.

Next, the operating procedure of this product verification inspection device will be explained based on FIG. 3.

The inspector first attaches the board to be inspected l to a predetermined position on the board inspection table 2 (S21), turns on the power to the control device 7 (522), and inserts the system floppy 14 and data floppy 6 into the disk drive 13. 523), use the keyboard 8 to enter the inspection date, inspector's name, and board 1 to be inspected.
The name, identification number, etc. of the electronic component 5 are input, and a start command is input (S24). As a result, the control device 7 is activated and a figure showing the correct shape and insertion direction of the first electronic component 5 is displayed on the screen of the CRT 4. A, a figure B showing the correct shape and incorrect insertion direction of the electronic component 5, a display C showing the correct specifications of the electronic component 1, two incorrect specifications D of the electronic component 5
-E and a display F indicating the insertion position are displayed (S3), and a point on the board to be inspected 1 corresponding to the correct insertion position of the electronic component 5 is irradiated by the component irradiation device 3 (S4)
. The inspector pays attention to the irradiation point and places the electronic component 5 at that irradiation point.
525), and if not, operate the keyboard 8 to input the information containing the error (S26). In addition, if an electronic component 5 is inserted at the irradiation point, the electronic component 5 at the irradiation point is further compared and verified with the display on the screen of the CRT 4, and the inserted electronic component 5 is displayed on the screen. Two shapes A-B
527), and if it is determined that it does not apply to any of the above, operate the keyboard 8 to input the information containing the error 326).
, if the inserted electronic component 5 corresponds to either of the two figures A to H displayed on the screen, click on the corresponding screen display with the mouse 9 to input information on which one it is. (32B). Also, it is determined whether the specifications of the inserted electronic component 5 correspond to any of the specifications displayed on the screen (329), and if it does not correspond to any of the specifications, operate the keyboard 8. 526), and if the specifications of the inserted electronic component 5 correspond to any of the specifications displayed on the screen, click on the corresponding screen display with the mouse 9. Input information as to whether it is (S30). Then, when the control circuit 7 confirms that an error has been notified to the inspector via the CRT 4 based on the data input by these keyboard operations (S26) or mouse 9 operations (328) and (S30), S31),
The inspector clicks on the applicable error conditions displayed in the display of error conditions (S8) with the mouse 9 to instruct the operator (532) and stores the error conditions in the control bag W7;
Here, if uninspected electronic components 5 remain,
For the next electronic component 5, the steps starting from the display on the CRT 4 (S3) and the irradiation by the component irradiation device 3 (S4) are repeated.

When the inspection of all the electronic components 5 is completed, "Complete" is displayed on the screen of the CRT 4 (313), and the printer 15 displays necessary information such as the inspection department, the name of the inspector, the name of the board 1 to be inspected, the identification number, etc., and the inspection. The results will be printed out (S
14).

The above is a case where the inspector visually reads the part to be inspected that has been irradiated by the irradiation device 3, but an imaging device is attached to the irradiation device 3, and the image and data read directly from the part to be inspected are stored in a floppy. It is also possible to adopt a system in which the correct image of the correct part is automatically compared within the control device, and in this case, steps 325 to S30 are unnecessary.

According to this product verification inspection device, the shape, insertion direction, and specifications of each electronic component 5 read from the data floppy 6 are displayed on the screen of the CRT 4, and the display and the corresponding electronic component 5 of the board 1 to be inspected are By comparing and contrasting, there is no need to create a standard product, and the labor and time required to create a standard product can be saved.

In addition, the control device 7 controls all the electronic components 5 to be inspected.
are displayed on the CRT 4 in a predetermined order, and
Since the insertion position of the electronic component 5 to be inspected is illuminated by the spotlight of the component irradiation device 3, when searching for the electronic component 5 to be inspected on the board to be inspected 1 or the corresponding component of the standard product. Compared to the above, the electronic component 5 to be inspected can be found much more simply and accurately in a short time, and there is no need to search for a display on the CRT 4 to be compared and contrasted. Therefore, the time required for the test can be significantly shortened, the mental and physical burdens on the examiner can be significantly reduced, and there is no possibility that the test will be omitted.

Furthermore, the correct shape, insertion direction and specifications of each electronic component 5 read from the data floppy disk 6 and the incorrect shape, insertion direction and specifications are simultaneously displayed on the CRT 4. Since the display position of the specifications and the incorrect shape, insertion direction, and display position of the specifications are appropriately switched depending on the order of display, it is no longer possible to have a preconception that the display at a certain position is correct. As a result, it is possible to eliminate erroneous memories based on preconceptions and erroneous judgments caused by uncertain memories.

〔Effect of the invention〕

As described above, according to the one-item verification inspection apparatus of the present invention, the display on the CRT screen and each electronic component on the board to be inspected are visually compared and compared based on the data stored in the storage medium, and the electronic Since the presence or absence of component insertion errors is inspected, there is no need to create standard products in advance in which electronic components are correctly installed, and the labor and time required to create standard products can be saved.

In addition, all the electronic components to be inspected are displayed on the CRT in a predetermined order, and the insertion position of the electronic component to be inspected is illuminated by the spotlight of the component irradiation device, so the inspector can There is no need to search for electronic components that serve as a reference for inspection, and electronic components to be inspected on a board to be inspected can be found easily and within a short time. As a result, the time required for testing can be significantly shortened, and the mental and physical burden on the examiner can be significantly reduced. In addition, all electronic components to be inspected are displayed on the CRT in a predetermined order, and
Since the insertion position of the electronic component to be inspected is illuminated by the spotlight of the component irradiation device, there is no possibility that the inspection of the electronic component to be inspected will be missed.

Furthermore, the correct shape, insertion direction, and specifications of each electronic component read from the recording medium and the incorrect shape, insertion direction, and specifications are simultaneously displayed on the CRT. Since the display position of the erroneous shape, insertion direction, and specification are appropriately switched depending on the display order, it is no longer possible to have a preconception that the display at a certain position is correct. As a result, it is possible to eliminate erroneous memories based on preconceptions and erroneous judgments caused by uncertain memories.

It is possible to select and test a specific component type, for example, a resistor, but this method is not stable because the color code is visually checked continuously when reading the specifications of the resistor to be tested on the board under test. The color code can be determined accurately and quickly, and the inspection of all products can be completed without omitting inspection of any product, and there is no need to check the parts list one by one as in the conventional method.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a one-item collation inspection device according to an embodiment of the present invention, Fig. 2 is a flow diagram showing an outline of the control program of the control device, and Fig. 3 is a flow chart showing the procedure of its operation. be. In the figure, l... Board to be inspected, 2... Board inspection table, 3...
Component irradiation device, 4...CRT, 5...Electronic component, 6
...Data floppy, 7...Control device, 8...
・Keyboard, 9...Mouse.

Claims (1)

[Scope of Claims] [1] A board inspection stand (2) that holds the board to be inspected (1) in a predetermined position, and an arbitrary board on the board to be inspected (1) held on the board inspection stand (2). Component irradiation device that irradiates one point (3)
and a CRT (4) placed near the board inspection table (2).
and a storage medium (6) that stores necessary information such as the correct shape of all electronic components (5) to be mounted on the board to be inspected (1).
Then, the memory items such as the correct shape of each electronic component (5) are read out from this storage medium (6) in a predetermined order, and the read out correct items and incorrect items are simultaneously displayed on the CRT (4). , a control device (7) that causes the component irradiation device (3) to irradiate the insertion position of the electronic component (5);
) and electronic components recognized at the irradiated insertion position (5)
Input devices (8) and (9) for inputting the display or absence of the display on the CRT (4) corresponding to the above to the control device (7);
), and the control device (7) is equipped with an input device (8).
By determining the match/mismatch between the input data of (9) and the read data of electronic component (5), it is possible to determine whether or not the electronic component (5) is inserted into a predetermined position, the direction of insertion, and the correctness of the specifications. A one-item verification inspection device characterized by being configured to make a determination.