JPH0674715A - Method and apparatus for detecting drill diameter for camera type printed board drill - Google Patents

Method and apparatus for detecting drill diameter for camera type printed board drill

Info

Publication number
JPH0674715A
JPH0674715A JP22984992A JP22984992A JPH0674715A JP H0674715 A JPH0674715 A JP H0674715A JP 22984992 A JP22984992 A JP 22984992A JP 22984992 A JP22984992 A JP 22984992A JP H0674715 A JPH0674715 A JP H0674715A
Authority
JP
Japan
Prior art keywords
drill
diameter
camera
drilling
circuit board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22984992A
Other languages
Japanese (ja)
Inventor
Hideo Bando
Teruhiko Kameyama
Koji Mitsui
Nobuo Oku
浩司 三井
輝彦 亀山
日出雄 坂東
信夫 奥
Original Assignee
Japan Steel Works Ltd:The
株式会社日本製鋼所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Steel Works Ltd:The, 株式会社日本製鋼所 filed Critical Japan Steel Works Ltd:The
Priority to JP22984992A priority Critical patent/JPH0674715A/en
Publication of JPH0674715A publication Critical patent/JPH0674715A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent imperfect drilling by determining the cross-sectional area and outer diameter of drill based on the image at the tip of image prior to drilling of a printed board and then detecting the diameter of a drill based on the cross-sectional area and outer diameter thus determined. CONSTITUTION:Before a printed board 2 is mounted on a machining table l, tip 4a of a drill 4 is imaged by means of a CCD camera 3 through a through hole 1a made through the machining table 1. The image 3a is fed into an image processing section 10 where the cross-sectional area S and the dimension D of profile at the tip 4a of the drill 4 are operated and then a decision is made whether the drill diameter A has a predetermined dimension or not. If the drill diameter A is normal, the printed board 2 is mounted on the machining table 1, a mark 2a is detected through the camera 3, the machining table 1 is driven in X-Y directions according to a signal 10a obtained from the processing section 10 to align the drill 4 with the center of the mark 2a, and then the drill 4 is lifted through a spindle 11 by means of an up/down unit 12 in order to drill a hole in the center of the mark 2a on the board 2 thus forming a drill hole 2A. This constitution realizes a highly reliable apparatus at low cost by eliminating the need of special sensor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for detecting a hole diameter of a camera type printed circuit board drilling machine, and more particularly to a new improvement for detecting the hole diameter of a hole by image processing.

[0002]

2. Description of the Related Art As a conventional method for detecting a drilling diameter of a camera-type printed circuit board boring machine of this type, as shown in FIG. An image from the camera 3 is captured, and an image from the camera 3 is subjected to image processing to form a drill hole 2A with a drill 4. That is, in order to detect the perforation diameter, the perforation hole of the printed circuit board after the perforation processing is inspected by image processing. Further, as another method, a method of directly measuring the drill diameter by a separately provided sensor has been adopted.

[0003]

Since the conventional method for detecting the hole diameter of the camera-type printed circuit board boring machine is configured as described above, the following problems exist. That is, in order to inspect the printed circuit board after processing the drill hole, for example, in the case of a drilling mistake such as drilling a hole diameter different from the predetermined hole diameter due to wear of the drill, runout of the drill, etc. Had a defective printed circuit board. Also, in the case of the method of mounting an independent sensor separately,
The mechanism was complicated and the cost was increased.

The present invention has been made to solve the above problems, and in particular, a method for detecting a drilling diameter of a camera-type printed circuit board boring machine which detects a drilling diameter by image processing, and The purpose is to provide a device.

[0005]

According to the present invention, there is provided a method for detecting a drilling diameter of a camera-type printed circuit board boring machine, wherein a mark at a predetermined position formed on the printed circuit board is subjected to image processing of an image obtained by a camera to perform the mark processing. In the camera-type printed circuit board drilling machine, which detects the center position of the mark (2a) and forms a drill hole in the mark (2a), before drilling the mark, images the drill using the camera, This is a method of detecting the drilling diameter based on the plane area or outer diameter of the drilling by processing.

Further, the drilling diameter detecting device for a camera-type printed circuit board boring machine according to the present invention detects a mark at a predetermined position formed on the printed circuit board by image-processing an image obtained by the camera, and the mark is detected. In a drilling diameter detection device for a camera-type printed circuit board boring machine that detects a drilling diameter of a drilling hole, a processing table for mounting the printed circuit board, and a vertical movement while rotating the drilling. This is a configuration including an up-and-down device for moving, an illuminating unit for illuminating the tip of the drill, and an image processing unit for performing the image processing.

[0007]

In the method and apparatus for detecting the drilling diameter of the camera-type printed circuit board boring machine according to the present invention, the tip of the drilling is imaged by the camera to obtain an image and the image is processed before the boring of the printed circuit board. By doing so, the perforation diameter of the perforation can be detected based on the plane area or the outside diameter dimension of the perforation. Therefore, since the perforation processing of the printed circuit board is performed after confirming the perforation diameter of the perforation, it is possible to completely prevent the perforation failure.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a method and apparatus for detecting a hole diameter of a camera type printed circuit board boring machine according to the present invention will be described in detail below with reference to the drawings. It should be noted that the same or equivalent portions as those of the conventional example will be described using the same reference numerals. 1 to 3 show a drilling diameter detecting device for a camera-type printed circuit board boring machine according to the present invention. FIG. 1 is a block diagram showing the entire structure, and FIG. 2 is a plan view showing the main part of FIG. FIG. 3 is an enlarged view of the main part of FIG.

In FIG. 1, reference numeral 1 is a processing table on which a printed circuit board 2 is placed. Above the processing table 1, a CCD type camera 3 is provided, and this camera is also provided. The image 3a from 3 is sent to a well-known image processing unit 10 so that arbitrary image processing can be performed.

A spindle 11 having a rotatable drill 4 is provided below the processing table 1 so as to be vertically movable by an up-and-down device 12, and the drill 4 can punch a mark 2a on a printed circuit board 2. Is configured.

A ring-shaped illumination unit 13 is coaxially arranged on the drill 4 to illuminate the drill 4, and the illumination unit 1
3 can be attached to the camera 3, for example.

Next, in the above-mentioned configuration, the drill 4 is actually cut.
When detecting the drilling diameter A of the tip 4a of the
Before placing the printed circuit board 2 on the top, the tip 4a of the drill 4 is imaged through the through hole 1a formed in the processing table 1, and the image 3a shown in FIG.

In the image processing section 10, the plane area S of the tip 4a or the outer diameter dimension D thereof is arithmetically processed on the basis of the image 3a, and the drilling diameter A of the drill 4 has a predetermined dimension. Determine whether or not.

As a result of the above judgment, when the cutting diameter A is normal, the printed circuit board 2 is placed on the processing table 1, the mark 2a is detected by the camera 3, and the mark is obtained by the image processing section 10. The signal 10a drives the machining table 1 in the XY direction so that the center of the drill 4 and the center of the mark 2a coincide with each other.

Next, in the above-mentioned state, when the drill 4 is lifted by the upper and lower parts 11, the mark 2 on the printed board 2 is moved.
The perforation hole 2A can be formed by making a hole in the center of a.

[0016]

Since the method and the device for detecting the drilling diameter of the camera type printed circuit board boring machine according to the present invention are configured as described above, the following effects can be obtained. That is, since the perforation diameter is detected before the perforation processing of the printed circuit board, the perforation processing can always be performed with a predetermined perforation diameter without causing a perforation failure unlike the conventional case. Further, it is possible to provide a highly reliable device at a low price without requiring a special sensor or the like.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a drilling diameter detection device of a camera-type printed circuit board boring machine according to the present invention.

FIG. 2 is a plan view of a main part of FIG.

FIG. 3 is an enlarged perspective view of a main part of FIG.

FIG. 4 is an explanatory diagram showing an image of a hole.

FIG. 5 is a configuration diagram showing a drilling diameter detection device of a conventional camera-type printed circuit board boring machine.

[Explanation of symbols]

 1 Processing Table 2 Printed Circuit Board 2A Drill Hole 2a Mark 3 Camera 3a Image 4 Drill 4a Tip 12 Vertical Device 13 Illuminator A Drill Diameter S Flat Area D Outer Diameter

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Mitsui 1-3, Takanodai, Yotsukaido, Chiba Stock Company Japan Steel Works

Claims (2)

[Claims]
1. A center position of the mark (2a) is detected by image-processing an image (3a) obtained by a camera (3) with a mark (2a) formed at a predetermined position on a printed circuit board (2). Then, in the camera type printed circuit board drilling machine configured to form a drill hole (2A) in the mark (2a), before drilling the mark (2a), drilling using the camera (3) ( 4) is imaged and the flat area (S) or outer diameter of the drill (4) is processed by image processing.
A method for detecting a hole diameter of a camera-type printed circuit board boring machine, characterized in that the hole diameter (A) is detected by (D).
2. The mark (2a) at a predetermined position formed on the printed circuit board (2) is detected by subjecting the image (3a) obtained by the camera (3) to image processing, and the mark (2a) is cut off. Processing for mounting the printed circuit board (2) in the drilling diameter detection device of the camera type printed circuit board hole making machine that detects the drilling diameter (A) of the drilling (4) forming the hole (2A) A table (1), and a vertical device (12) for vertically moving while rotating the drill (4),
Illumination unit (13) for illuminating the tip (4a) of the perforation (4)
And an image processing unit (10) for performing the image processing, and is configured to obtain the plane area (S) or outer diameter dimension (D) of the perforation (4) by the image processing. A drilling diameter detection device for a camera-type printed circuit board drilling machine.
JP22984992A 1992-08-28 1992-08-28 Method and apparatus for detecting drill diameter for camera type printed board drill Pending JPH0674715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22984992A JPH0674715A (en) 1992-08-28 1992-08-28 Method and apparatus for detecting drill diameter for camera type printed board drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22984992A JPH0674715A (en) 1992-08-28 1992-08-28 Method and apparatus for detecting drill diameter for camera type printed board drill

Publications (1)

Publication Number Publication Date
JPH0674715A true JPH0674715A (en) 1994-03-18

Family

ID=16898653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22984992A Pending JPH0674715A (en) 1992-08-28 1992-08-28 Method and apparatus for detecting drill diameter for camera type printed board drill

Country Status (1)

Country Link
JP (1) JPH0674715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6520718B1 (en) 1998-11-27 2003-02-18 Shigeki Nagatomo, Et Al. Sardine-bone construction method for large-section tunnel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6520718B1 (en) 1998-11-27 2003-02-18 Shigeki Nagatomo, Et Al. Sardine-bone construction method for large-section tunnel

Similar Documents

Publication Publication Date Title
US6362877B1 (en) Visual inspection supporting apparatus and printed circuit board inspecting apparatus, and methods of soldering inspection and correction using the apparatuses
KR950002212B1 (en) Method for detecting and correcting failure in mounting of electronic parts on substrate and apparatus therefor
US5134575A (en) Method of producing numerical control data for inspecting assembled printed circuit board
US4764969A (en) Apparatus for inspecting the surface of a material
US7777898B2 (en) Workpiece machining apparatus
JP3882840B2 (en) Solder printing inspection method, solder printing inspection machine and solder printing inspection system using this method
TWI276796B (en) Wiring pattern check up apparatus
EP0126492A2 (en) Circuit board inspection apparatus and method
JP3026981B2 (en) Compensation system for inspection of potentially distorted printed circuit boards
JP4667681B2 (en) Mounting inspection system and mounting inspection method
JP2006220426A (en) Method and system for inspecting mounted electronic component
US4758782A (en) Method and apparatus for inspecting printed circuit board
KR920003030A (en) Pattern inspection method of printed circuit board and its device
JP4946668B2 (en) Substrate position detection device and substrate position detection method
JP4809032B2 (en) Mounting board inspection device and printing device
US5138180A (en) Wire bonding inspecting apparatus utilizing a controlling means for shifting from one inspected area to another
KR100367222B1 (en) Inspection system for inspecting discrete wiring patterns formed on a continuous substrate sheet of a flexible material
US6084663A (en) Method and an apparatus for inspection of a printed circuit board assembly
EP1211015B1 (en) Wear control device for a cutting tip of a laser cutting apparatus
JP4454428B2 (en) Component edge detection method, component edge detection program, and inspection apparatus
US5529441A (en) Drill coordinate optimization for multi-layer printed circuit board
US20050190959A1 (en) Drill hole inspection method for printed circuit board fabrication
JPS60263807A (en) Instument for inspecting pattern defect of printed wiring board
ES2227971T3 (en) Brand inspection system.
WO2008026562A1 (en) Board appearance inspection method and device