KR20040019943A - Supporting apparatus for macroscopic inspection of industrial products - Google Patents

Abstract

PURPOSE: To easily search a defective portion in an electronic circuit component or the like, using information from another inspection device, to conduct confirmation work by the same operation, and to surely carry out visual inspection. CONSTITUTION: This visual inspection support device for an industrial product having a camera unit comprising at least the first camera and the second camera for photographing an inspection object from different directions is provided with an inspection result collecting and inspection result data preparing means for collecting an inspection result or the like of the another inspection device to prepare an inspection result data, and a defective portion tracing means for tracing the defective portion ascertained already in the another inspection device. The inspection result or the like collected by the inspection result collecting and inspection result data preparing means is provided to the defective portion tracing means, and the camera unit is driven according to the inspection result data prepared by the inspection result collecting and inspection result data preparing means.

Description

Visual inspection support apparatus for industrial products {SUPPORTING APPARATUS FOR MACROSCOPIC INSPECTION OF INDUSTRIAL PRODUCTS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual inspection support apparatus for industrial products, and in particular, for visual inspection of electronic circuit boards and other industrial products provided with ICs such as ICs, LSIs, VLSIs, and electronic components such as resistors and capacitors. The present invention relates to a visual inspection support apparatus for an industrial product.

In the circuit board installation, it is necessary for the operator (operator) to visually inspect whether the electronic circuit board is correctly arranged with various electronic circuit elements such as ICs, LSIs, resistors or capacitors, and whether soldering is performed reliably. .

The inventors have combined a camera unit for photographing an inspection object by combining a front video camera (CCD camera) and an inclination video camera (CCD camera), an inspection object such as an electronic circuit board, and the camera unit relatively as necessary. A moving monitor, an image monitor for selectively reproducing the captured image signal of the camera unit, and a control for shooting the main inspection portion of the inspection object in a predetermined order and shooting mode and controlling the image monitor to reproduce the image signal; First, a visual inspection support apparatus for an industrial product having a device and an instruction device for instructing the control device to proceed with photographing is proposed.

By using the visual inspection support apparatus of this industrial product, the self-inspection apparatus (inspection apparatus of the same type; the inspection apparatus originally equipped in the visual inspection support apparatus of this industrial product) K1) Automatic judgment is performed to visually inspect the industrial product. However, using other visual inspection support apparatuses of this industrial product, other inspection apparatuses for which automatic determination by the machine is performed (inspection apparatuses of different models; inspections which are not originally equipped in the visual inspection support apparatus of industrial products but are separately equipped) Using various information (various data) in the apparatus K2, it is necessary to visually inspect an industrial product such as an electronic circuit board.

When various information (various data) of the other inspection apparatus K2 on which the automatic determination by this machine is performed is used for the visual inspection support apparatus of this industrial product, unevenness arises in the determination of acceptance depending on the setting of the inspection determination conditions. . Therefore, it is necessary for the operator (operator) to visually inspect the point indicated by the defective point ("NG" point).

However, it takes time to find the defective part ("NG" part) on the actual electronic circuit board based on the test result output from the other inspection device K2, and the time loss (time loss) in the inspection process do. If a plurality of different types of inspection devices K2 (K2a, K2b, etc.) are used, the method of outputting the inspection results is different, and based on the inspection results output from the other inspection devices K2 (K2a, K2b, etc.). It takes more time to find the defective part ("NG: location") on the actual electronic circuit board, resulting in a time loss (time loss) in the inspection process.

In addition, when the visual inspection support apparatus of an industrial product is comprised in combination with another inspection apparatus K2, it is preferable to link smoothly with this other inspection apparatus K2, In other words, it cooperates with another inspection apparatus K2. It is desirable to operate smoothly.

Usually, when different inspection apparatuses K2 (K2a, K2b, etc.) of a plurality of manufacturers are used, the data (output format) of the inspection results are different, so that the method of verification after the different inspection apparatus processes is determined individually. There was a need. It is preferable that all of these confirmation operations be the same operation.

In addition, the visual inspection support apparatus for industrial products needs to perform visual inspection on the point where it is judged to be focused visually, and in this case, visual inspection and other inspection devices for the point where it is judged to be visually focused. It is preferable to perform visual inspection of the point indicated by the defect point by K2) in a short time.

An object of the present invention is to provide a visual inspection support apparatus for an industrial product which can functionally combine another inspection apparatus with a visual inspection support apparatus for an industrial product.

SUMMARY OF THE INVENTION An object of the present invention is to provide a visual inspection support apparatus for an industrial product that is capable of reading and automatically converting inspection results or design data of another inspection apparatus when a visual inspection support apparatus of an industrial product is combined with another inspection apparatus. Is in.

An object of the present invention is to provide a visual inspection support apparatus for an industrial product that can improve the visual inspection efficiency when the visual inspection support apparatus for an industrial product is combined with another inspection apparatus.

SUMMARY OF THE INVENTION An object of the present invention is to provide a visual inspection support apparatus for an industrial product capable of performing visual inspection on a location that is determined to be visually intensive and visual inspection on a location indicated as a defective location by another inspection device in a short time. Is in.

1 is a schematic perspective view of a visual inspection support apparatus for an industrial product according to an embodiment of the present invention;

2 is a block diagram showing the functional relationship of each part of the visual inspection support apparatus for industrial products according to one embodiment of the present invention;

3 is a block diagram showing the functional relationship between data collection and other inspection apparatus of the visual inspection support apparatus for industrial products according to one embodiment of the present invention.

※ Explanation of symbols for main parts of drawing

1: electronic circuit board 2: camera unit

2a: front video camera 2b: tilt video camera

4a: Y-direction moving mechanism 5a: X-direction moving mechanism

6b: Z direction moving mechanism 7: Image monitor

8 control unit 9 remote control device for indication

The present invention provides a camera unit comprising at least a first camera and a second camera, each of which photographs an inspection object in a different direction, and moves the inspection object in at least one direction in a three-dimensional direction relative to the camera unit, if necessary. A moving unit, an image monitor for selectively reproducing the image signal photographed by the camera unit, a control device for controlling the reproduction of the main inspection portion of the inspection subject in the predetermined order and shooting mode and reproducing the image monitor; In the visual inspection support apparatus for an industrial product comprising an instruction device which gives the control device an instruction to proceed with the photographing, the visual inspection support apparatus for the industrial product again collects inspection results of another inspection apparatus and the like and collects the inspection result data. Inspection result collection and inspection result data creation means for creating a; A defect location tracking means for tracking a specified defect location, and providing inspection results collected by the inspection result collection and inspection result data creation means to the defect location tracking means, and collecting the inspection result and inspection result data. A visual inspection support apparatus for an industrial product, characterized in that for driving the camera unit in accordance with the inspection result data created by the creation means.

In addition, the present invention provides a camera unit comprising at least a first camera and a second camera, each of which photographs an inspection object in a different direction, and the inspection object in at least one direction relatively three-dimensional with respect to the camera unit, as necessary. Moving means for moving, an image monitor for selectively reproducing the image signal photographed by the camera unit, and a program for presetting a target to be visually inspected among the inspection objects in advance, and including a main inspection portion of the inspection object. A visual inspection support apparatus for an industrial product, comprising: a control device for shooting in a preset sequence and a shooting mode and controlling the image monitor to reproduce the image; The control device of the visual inspection support apparatus is similar to the main visual inspection of the inspection target. Visual inspection supporting apparatus of the industrial products, characterized in that to control to perform with the visual inspection of the defective portion of the other test apparatus.

Hereinafter, the visual inspection support apparatus of the industrial product of this invention is demonstrated based on drawing. 1 shows an embodiment of a visual inspection support apparatus for an industrial product to which the present invention is applied. Figure 2 is a block diagram showing the functional relationship of each part of the visual inspection support apparatus for industrial products according to an embodiment of the present invention.

As shown in the drawing, the visual inspection support apparatus of the industrial product of this embodiment is an apparatus for inspecting each part of the electronic circuit board 1 to be inspected, and its main component is a front video camera (front CCD camera). (2a) and a camera unit (2) consisting of two video cameras, a tilting video camera (an inclined CCD camera) 2b, a holding unit (3) for holding the electronic circuit board (1), and a holding unit ( 3) the base portion 4, the door frame 5, the Y-direction moving mechanism 4a for the Y-direction movement of the holding portion 3, and the rotating mechanism 6a provided in the camera unit 2. ) And the Z-direction moving mechanism 6b moving in the lifting direction, the X-direction moving mechanism 5a for moving the X direction of the camera unit 2 provided in the door-shaped frame 5, the image monitor 7, and the image With the control unit 8 installed integrally with the monitor 7 and the instruction remote control unit 9 for giving an instruction to the control unit 8 There is sex.

The front video camera 2a and the tilt video camera 2b are provided so that the angle formed between the optical axis of the tilt video camera 2b and the optical axis of the front video camera 2a is 45 degrees. The balancer 2c is provided in the upper part of the front video camera 2a. The rotating mechanism 6a is rotated about the front video camera 2a. An instrument box 10 is provided above the front video camera 2a, and the rotary mechanism 6a and the Z-direction moving mechanism 6b are housed therein.

The rotating member 6a and the Z-direction moving mechanism 6b, and the shaft member for Z-direction movement and rotation, are arranged in line with the mechanism box 10. The upper part of the front video camera 2a is couple | bonded with the lower end of this shaft member. The camera unit 2 receives the action of the rotation by the rotating mechanism 6a and the movement of the Z direction by the Z-direction moving mechanism 6b.

The X direction moving mechanism 5a moves the mechanism box 10 along the horizontal portion of the door-shaped frame 5, that is, in the X direction. The X direction movement mechanism 5a moves the camera unit 2, the rotation mechanism 6a, and the Z direction movement mechanism 6b simultaneously in the X direction via the mechanism box 10. FIG.

The holding part 3 is provided so that both ends of the electronic circuit board 1 may be held by a pole piece, etc., and it can move freely on the rail members 4b and 4b provided in the base part 4.

As the image monitor 7, a CRT display is employed.

The control unit 8 includes an external storage device 11. In the program storage area 11a of the external memory device 11, a program determined for the photographing order of all the main inspection parts of the electronic circuit board 1 to be inspected, the operation of each part for each main inspection part, and the like are held. In the image storage area 11b of the external storage device 11, image data indicating a normal state of all the major inspection sites of the electronic circuit board 1 that are difficult to determine is held.

The instruction remote control unit 9 instructs the control unit 8 to start the operation, notifies the completion of visual inspection of the main inspection site, and prompts the transition to the next major inspection site. Instructs the re-photographing operation of the main inspection part that has already been completed for review.

The image signal outputs of the front video camera 2a and the tilt video camera 2b of the camera unit 2 are connected to the image monitor 7 via the image switching unit 12 and to the external storage device 11. The image data of the image storage area 11b of the image) is converted into the A / D converter 13, and the image signal output thereof is connected to the image monitor 7 via the image switching unit 12.

According to the visual inspection support apparatus of the industrial product of this embodiment, the holding unit 3 holds the electronic circuit board 1 to be inspected, and then instructs the start remote control device 9 to start the operation. The unit 3 moves as needed in the Y direction by the operation of the Y-direction moving mechanism 4a, and the camera unit 2 moves to the operation of the Z-direction moving mechanism 6a and the X-direction moving mechanism 5a. Thereby moving in the Z and X directions as necessary.

In addition, the rotating mechanism 6a rotates to move the camera unit 2, and the first main inspection portion of the target electronic circuit board 1 is the front video camera 2a or the tilt of the camera unit 2. A zooming operation is performed with the video camera 2a or 2b which faces the use video camera 2b and which is faced as necessary, and photographs of the main inspection site at an appropriate magnification.

For example, when the first main inspection site observes from the front of the IC and confirms its model number, the front video camera 2a of the camera unit 2 is positioned so as to photograph it from the front. At this time, by the rotation operation by the rotating mechanism 6a, the front video camera 2a sets the direction so that the characters indicating the model number of the IC can be photographed in the upright state, and indicates the model number of the IC. Photograph the characters in an upright position.

The image signal obtained by photographing in this way is input to the image monitor 7 via the image switching part 12, and is reproduced here. Therefore, the operator (inspection person) can perform accurate inspection because the model number of the IC can be visually read in the upright state.

In addition, when the first main inspection portion inspects the installation state of the electronic circuit board 1 of the IC, the inclined video camera 2b of the camera unit 2 is selected. At this time, the tilting video camera 2b is positioned so that the tilting video camera 2b can be photographed from the direction of the optimal angle with respect to the IC, and the photographing in the tilting direction of the IC is performed from the position.

The image signal obtained by photographing in this way is input to the image monitor 7 via the image switching part 12, and is reproduced here. Therefore, the worker (inspection person) can observe the installation state of the IC to the electronic circuit board 1 from the inclined direction, so that accurate visual inspection can be performed.

When there are circumstances such as the inspection points of the main inspection sites that are complicated and difficult to store accurately, image data of the normal state of the main inspection sites is transferred from the image storage area 11b of the external storage device 11 according to the program. The analog image signal which is read and obtained by A / D conversion of the read image data by the A / D converter 13 is input to the image monitor 7 via the image switching unit 12. And since it is reproduced alternately with the image of the main inspection part, the worker (inspection person) can compare this and perform the inspection work more easily and accurately.

In this manner, after the visual inspection of the first major inspection portion ends, the instruction remote control device 9 is operated to notify the end thereof, and the following operation is urged. According to the program, the same operation as described above is performed for each part of the apparatus toward the shooting of the next main inspection part.

In the same manner, the worker (inspection person) can visually inspect the electronic circuit board 1, and the same operation is repeated for all the main inspection parts to complete the inspection work.

The visual inspection support apparatus of the industrial product of the above embodiment is an apparatus for inspecting each part of the electronic circuit board 1 to be inspected, and is a self-inspection apparatus (inspection apparatus of the same type) K1 by a machine (for human sense). An example of visually inspecting an industrial product by performing automatic determination was described.

The visual inspection support apparatus of the industrial product of the present invention uses an electronic circuit board or the like by using various information (various data) from another inspection apparatus (an inspection apparatus of another model) K2 in which automatic determination by a machine is performed again. Visually inspect industrial products.

Various information (various data) of another inspection apparatus (inspection apparatus of another model) K2 is introduced into the visual inspection support apparatus of this industrial product, for example via a network.

Network from another machine (separate device) that holds the results of a test (another test result) with another tester (K2), that is, from another machine (other device) not originally equipped with the visual inspection support device of this industrial product. Various data are introduced into the visual inspection support apparatus of this industrial product by means of reading the various data.

The visual inspection support apparatus of the industrial product of the present invention is, in order to be functionally linked with another inspection apparatus K2, in other words, in order to operate smoothly in cooperation with the other inspection apparatus K2, two software (described below) Function) (A and B) (two structural means).

One software (function: constituent means) (A) is a component of software (function) that collects inspection results of another inspection apparatus K2, etc. (A1). ) Is composed of software (function) for which no operation is performed, and (A3) software (function) for providing the collected test results to software (function) B via a network or the like.

Another software (function) B is (B1) a configuration of software (function) that tracks (instructs the machine) a defect point ("NG" point) already known of another inspection apparatus K2, In other words, for example, the configuration of computer aided inspection (CAI), (B2) the configuration of software (function) that the user (worker) performs when performing visual inspection, in other words, Configuration of the software (function) that presses a button (a button labeled "OK" for good quality) or a button for a defective item (a button labeled "NG" for defective goods), and (B3) the test result data generated by software (A). Therefore, it consists of software (function) that moves a hardware member (robot) equipped with a video camera.

The visual inspection support apparatus for an industrial product of the present invention reads inspection results and design data from another inspection apparatus K2 in advance via a network and stores them in the control unit 8.

After reading the inspection results or design data from the other inspection apparatus K2 into the control section 8, the visual inspection support apparatus of the industrial product of the above embodiment performs a different magnetic inspection when inspecting each part of the electronic circuit board to be inspected. The automatic determination and visual inspection by the machine (not based on human senses) by the device (an inspection device of another model) K2 is performed in the same manner as the example of automatic determination and visual inspection by the machine by the magnetic inspection device K1. Lose.

As described above, in the visual inspection support apparatus of the industrial product of the embodiment, the data collection software (function) (A) and the inspection software (function) (B) are configured separately, and two software (functions) are provided. Has (A and B)

The two software (functions) A and B described above are configured to operate with one or a plurality of personal computers (PCs).

For example, inspection result data from another inspection apparatus K2 is collected via a network, and inspection results from another inspection apparatus K2 are converted into a standard data format and stored.

In addition, by inverting the standard data format, various data for the other inspection apparatus K2 can be reversed.

As described above, according to the visual inspection support apparatus of the industrial product of one embodiment of the present invention, the inspection result or design data of the other inspection apparatus K2 is read, and the automatic conversion is performed to face the defective part ("NG" point). Since the moving video camera 2a or the tilting video camera 2b is moved and the captured image is displayed on the image monitor 7 or the like, the operation of finding an inspection point (defective location ("NG" location)) is unnecessary. do.

Thereby, the visual inspection support apparatus of the industrial product of the above embodiment reads the inspection result and design data from the other inspection apparatus K2 and performs automatic conversion, so that various information from the other inspection apparatus K2 ( Improved efficiency of visual inspection of industrial products such as electronic circuit boards by various data) can be achieved.

3 is a block diagram showing the functional relationship between data collection and other inspection apparatus of the visual inspection support apparatus for industrial products according to one embodiment of the present invention.

The visual inspection support apparatus of the industrial product of the present invention can correspond to a plurality of different inspection apparatuses [automatically optical inspections: for example, other inspection apparatus K2a, another inspection apparatus K2b, and another inspection apparatus K2c]. Can be.

According to the visual inspection support apparatus of the industrial product which is one Embodiment of this invention, it connects to several other inspection apparatuses (for example, another inspection apparatus K2a, another inspection apparatus K2b, and another inspection apparatus K2c). In this case, the difference between the different inspection apparatuses K2a, K2b, and K2c is absorbed by the software A that performs data collection. In other words, the software (function) A has a function to even out the differences among the different inspection apparatuses K2a, K2b, and K2c.

Thereby, a user (worker) does not change the software (function) B which directly operates, but does not change several inspection apparatuses (for example, another inspection apparatus K2a, another inspection apparatus K2b, and another inspection apparatus). (K2c)] can be handled.

As described above, the visual inspection paper apparatus of the industrial product of the present invention can read inspection results and design data from another inspection apparatus K2.

According to the above embodiment of the present invention, since various data from a plurality of different inspection apparatuses K2 can be stored in one database, it is easy to take statistics of inspection contents and the like.

Moreover, since various data can be collectively managed and the statistical result can be fed back to a pre-process, the bundle of defects can be prevented beforehand.

In addition, there are two types of visual inspection after electronic circuit board installation using various information (various data) from other inspection apparatus K2.

One of them is (a1) a visual inspection of a point determined to be visually focused, and the other is (a2) a point ("NG") indicated as a defective place by another inspection apparatus K2. Visual inspection.

The visual inspection support apparatus for the industrial product of the present invention can work in one process by arranging these two visual inspections.

To organize two visual inspections and work in one process, three software (functions) are required.

That is, the three software (functions) C include (C1) the configuration of software (functions) for collecting different test results and the like, (C2) the software (functions) for tracking NG points of other test devices K2. Configuration and (C3) Configuration of the software (function) for performing the central visual inspection.

With software C3, the key visual inspection point is programmed in advance.

When the software C1 collects other inspection results or the like, the program file made by the software C3 is also read at the same time to mix the data.

According to the above embodiment of the present invention, the visual inspection of the central visual inspection location and the visual inspection of the defective location ("NG" location) by the other inspection device K2 can be performed in one step.

It is also possible to mix-check the test results of the tilted (pre-teached) program and the test results of the other tester K2. That is, since the learning function is mounted, the visual inspection can be easily operated, and the next time the same point is inspected, it can be determined without performing a fine operation.

By integrating the results of the two visual inspections into one inspection result, the defective result can be managed in one unit.

According to the visual inspection support apparatus of the industrial product of the present invention, other inspection apparatuses can be combined functionally, and defects on the actual electronic circuit board based on the inspection results output from the other inspection apparatuses ("NG" points) Can be easily found, thereby improving the efficiency of visual inspection.

When the other inspection apparatus is combined with the visual inspection support apparatus of the industrial product of the present invention, the inspection result and the design data of the other inspection apparatus can be read and automatically converted, and the efficiency of the visual inspection can be improved.

According to the visual inspection support apparatus of the industrial product of the present invention, the visual inspection of the point judged to be intensively focused and the visual inspection of the point indicated by the other inspection device in a short time can be performed together in a short time.

Claims (3)

A camera unit comprising at least a first camera and a second camera respectively photographing the inspection object in different directions, and moving means for moving the inspection object in at least one direction in a three-dimensional direction relative to the camera unit, if necessary; An image monitor for selectively reproducing the image signal photographed by the camera unit, a controller for controlling the main inspection portion of the inspection subject to be reproduced by the image monitor by shooting in a preset order and shooting mode; In the visual inspection support device for industrial products, comprising an instruction device for giving an instruction to proceed with photographing, The visual inspection support apparatus for the industrial product further includes inspection result collection and inspection result data generating means for collecting the inspection results of another inspection apparatus and the like to create the inspection result data, and the defect points already known of the other inspection apparatus. And a defect point tracking means for tracking the test result collection and the test result collected by the test result collection and the test result data generating means, and the like by providing the test result collection means and the test result collection and the test result data generating means. Visual inspection support device for an industrial product, characterized in that for driving the camera unit in accordance with the inspection result data. A camera unit comprising at least a first camera and a second camera respectively photographing the inspection object in different directions, and moving means for moving the inspection object in at least one direction in a three-dimensional direction relative to the camera unit, if necessary; An image monitor for selectively reproducing the image signal photographed by the camera unit, and a program in which a target to be visually inspected in advance is pre-set among the inspection targets; In the visual inspection support apparatus for industrial products, comprising a control device that controls shooting to a photographing mode and reproduces the image monitor; The control apparatus of the visual inspection support apparatus of the industrial product controls visual inspection of the defective part of the inspection apparatus together with the main visual inspection in the inspection object. Device. The method of claim 2, The visual inspection support apparatus of the industrial product, which collects the inspection results of the other inspection apparatus and the like again, collects the inspection results for generating the inspection result data and the inspection result data generating means, and the defects for tracking the defect points of the other inspection apparatuses. And a test point collecting means and a test result collected by the test result collecting means and the test result data generating means to the defective point tracking means, and the test result data and the test result data generating means Visual inspection support apparatus for an industrial product, characterized in that for driving the camera unit.