CN1226592C - Position detecting method, position detecting apparatus and method for positioning printed circuit board - Google Patents

Position detecting method, position detecting apparatus and method for positioning printed circuit board Download PDF

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Publication number
CN1226592C
CN1226592C CNB031067808A CN03106780A CN1226592C CN 1226592 C CN1226592 C CN 1226592C CN B031067808 A CNB031067808 A CN B031067808A CN 03106780 A CN03106780 A CN 03106780A CN 1226592 C CN1226592 C CN 1226592C
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mentioned
benchmark
position detecting
picture
circuit board
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CN1487265A (en
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福岛正人
村松义和
崎野忠志
酒井庄三
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UHT Corp
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UHT Corp
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0266Marks, test patterns or identification means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00General purpose image data processing
    • G06T1/0007Image acquisition
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/0002Inspection of images, e.g. flaw detection
    • G06T7/0004Industrial image inspection

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Quality & Reliability (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

Provided is a method and a device that can precisely image-pick up a plurality of reference portions arranged in a very small space in a short time without generating a mutual interference in a plurality of camera means, and can detect the coordinates of the each reference portion and to provide a method of positioning a print circuit board. The detection method and the detector are provided with an optical guide means (10) wherein images of the at least two reference portions are divided into a plurality of images corresponding to the every reference portion by an optical splitting means, wherein images of the at least two reference portions (31a) incident into incident ports (11a) are divided into a plurality of images corresponding to the every reference portion by the optical splitting means, and wherein the plurality of images are guided respectively to emission ports (11b), and the camera means (20) faced respectively to the plurality of emission ports (11b). A plurality of image-picked-up data by the plurality of camera means (20) are image-processed to detect the coordinates of the respective reference portions (31a).

Description

Method for detecting position, position detecting device, and the localization method of printed circuit board (PCB)
Technical field
The present invention relates to method for detecting position and the position detecting device of a kind of detection with each coordinate at a plurality of benchmark position of slight gap configuration, particularly relate to and being suitable for as the printed circuit board (PCB) that is formed on the printing element is carried out the preceding operation of stamping-out, detect accurately the coordinate at benchmark position on the base station that benchmark position on the printed circuit board (PCB) and mounting have printed circuit board (PCB) etc. method for detecting position, position detecting device, and use the localization method of the printed circuit board (PCB) of this method for detecting position and position detecting device.
Background technology
Be formed at the occasion of the printed circuit board (PCB) w on the printing element W such as fexible film at stamping-out, require high precision (with reference to Fig. 8) along the part of the ㄈ font of the recontour line w1 of its end, the stamping-out of so-called finishing hole w2.Promptly, form the connection lead of a plurality of Wiring patterns in the end of the printed circuit board (PCB) w that surrounds by this finishing hole w2, comprising finishing hole w2 in interior occasion of printed circuit board (PCB) w integral body being carried out stamping-out by the decompressor in past, punching precision around the above-mentioned connection wire portion is low, so, be easy to take place the bad connection of this wire portion and this wire portion, produce the problem that product reliability descends.
Therefore, prior art (with reference to No. the 2662477th, Japanese patent gazette) nearby is provided with alignment mark in the end of printed circuit board (PCB), by camera heads such as ccd video cameras this alignment mark is made a video recording, simultaneously, detect by the coordinate of Flame Image Process this alignment mark, should detected coordinate as benchmark, by drift stamping-out is carried out in the finishing hole of the end of printed circuit board (PCB).
; according to above-mentioned prior art; when the end of printed circuit board (PCB) and drift are inconsistent on angle; need carry out angle modification to the printing element that forms this printed circuit board (PCB) or drift and the metal pattern corresponding with this drift; so, need detect the coordinate of two alignment marks at least to each printed circuit board (PCB).
Yet, in the occasion of wanting two alignment marks to be made a video recording with 1 camera head, owing to need make field range wideer than the occasion of 1 alignment mark being made a video recording by 1 camera head of identical resolution characteristic, the deterioration in accuracy of for this reason making a video recording.
Though propose to have the scheme that 2 camera heads corresponding with two alignment marks are set respectively, but at printed circuit board (PCB) is small-sized occasion, because the interval of two alignment marks also becomes microsize, so, produce above-mentioned 2 camera heads and may produce the problem of interference.In addition, though can consider by above-mentioned 2 camera heads being set obliquely to avoid the scheme of above-mentioned interference, in this occasion, because image fault, so can not obtain high-precision shooting.
In addition, though also can consider to correspond respectively to the scheme that two alignment marks move 1 camera head, in this occasion, owing to need the traveling time of camera head, so coordinate is elongated detection time.
Summary of the invention
The present invention makes in view of the above problems, its purpose be to provide a kind of do not make a plurality of camera heads interfere mutually with high precision at short notice to the method for detecting position of making a video recording, detect the coordinate at each benchmark position by a plurality of benchmark position of slight gap configuration, position detecting device, and the localization method of printed circuit board (PCB).
In order to address the above problem, method for detecting position of the present invention is divided into a plurality of pictures corresponding with each this benchmark position optically with the picture at least two benchmark positions, by each camera head these a plurality of pictures of cutting apart acquisition are made a video recording, thereby these a plurality of camera datas are carried out the coordinate that Flame Image Process detects above-mentioned each benchmark position respectively.
Here, the top that for example goes out horn shape for two of the outer radial line of ㄈ word shape finishing that is formed at the printed circuit board (PCB) on the printing element, said reference position be used for from a plurality of regulations position of the metal pattern of above-mentioned printing element stamping-out printed circuit board (PCB) etc.
In addition, above-mentioned optical segmentation means uses prism and catoptron etc. that facing one direction picture is divided into a plurality of pictures, and guide these a plurality of pictures respectively towards different directions, as concrete example, by making section is the prism mirror of isosceles triangle, to be divided into 2 parts from the picture that a direction incides the top side of this prism mirror, and make these two pictures cutting apart acquisition respectively towards different direction reflections.
According to above-mentioned technological means, the picture at a plurality of benchmark position is divided into a plurality of pictures corresponding with each this benchmark position optically, thereby makes the interval between these benchmark positions incide corresponding camera head respectively with enlarging.
In addition, in the position detecting device of the 2nd invention, picture with at least two benchmark positions will inciding the entrance port be divided into a plurality of pictures corresponding optically with each this benchmark position and with these a plurality of pictures of cutting apart acquisition respectively to the optical directory means of exit portal guiding and a plurality of respectively facing to the camera head of above-mentioned exit portal, by respectively the camera data that is obtained by these a plurality of camera heads being carried out Flame Image Process, thereby detect the coordinate at above-mentioned each benchmark position.
In addition, the position detecting device of the 3rd invention is characterised in that, above-mentioned optical directory means has the 1st reflection unit that the picture that makes at least two benchmark positions inciding above-mentioned entrance port reflects in the same direction, will be divided into the corresponding a plurality of pictures in each said reference position by the picture of the 1st reflection unit reflection and make these a plurality of pictures of cutting apart acquisition guide to optical branching device, and each picture of being cut apart by this optical branching device of reflection and it is guided to the 2nd reflection unit of above-mentioned exit portal of different directions respectively.
In addition, the position detecting device of the 4th invention is characterised in that, relatively moves by making above-mentioned optical directory means and above-mentioned camera head, and the field range of the picture at each benchmark position that making makes a video recording obtains moves.
Here, the occasion that the mobile mutually state that is included in fixing above-mentioned optical directory means of above-mentioned optical directory means and above-mentioned camera head moves the occasion of above-mentioned camera head, moves the occasion of above-mentioned optical directory means and make above-mentioned optical directory means under the state of fixing above-mentioned camera head and above-mentioned camera head both sides move towards different directions respectively.
In addition, the position detecting device of above-mentioned the 5th invention is characterised in that, the said reference position is two, by with the configuration direction of two above-mentioned the 2nd reflection units substantially the direction of orthogonal above-mentioned optical directory means and two above-mentioned camera heads are relatively moved, two above-mentioned field ranges are moved towards the approaching direction of leaving.
In addition, the position detecting device of the 6th invention is characterised in that, the said reference position is two, by above-mentioned optical directory means and two above-mentioned camera heads being relatively moved in the direction parallel with the configuration direction cardinal principle of two above-mentioned the 2nd reflection units, thereby the side in two above-mentioned field ranges is moved towards the direction with above-mentioned moving direction cardinal principle orthogonal, and the opposing party court direction opposite with the moving direction of an above-mentioned side's field range moved.
In addition, the 7th invention is the localization method of the printed circuit board (PCB) of use location pick-up unit, it is characterized in that: detect the coordinate at least two benchmark positions on the base station and a plurality of coordinates on the printed circuit board (PCB) corresponding respectively with these coordinates, a side or both sides in above-mentioned base station and the above-mentioned printed circuit board (PCB) are moved, make the said reference position on the above-mentioned printed circuit board (PCB) consistent with the said reference position on the above-mentioned base station.
Description of drawings
Fig. 1 is the skeleton view of signal structure that an example of position detecting device of the present invention is shown.
Fig. 2 is the in-built skeleton view that an example of optical directory means is shown.
Fig. 3 is the skeleton view that an example of the 2nd reflection unit is shown.
Fig. 4 is the skeleton view that an example that is electrically connected camera head and image processing apparatus is shown.
Fig. 5 (a1)-(c1) is for illustrating field range goes up the state that moves successively at metal pattern (base station) planimetric map, (a2)-(c2) for the planimetric map of the image that above-mentioned each field range shooting is obtained is shown.
Fig. 6 wants facial planes figure for tab order that printed circuit board (PCB) of the present invention is shown successively by (a)-(c).
Fig. 7 is another routine skeleton view that position detecting device of the present invention is shown.
Fig. 8 is the planimetric map that a printed circuit board (PCB) and an example of the printing element that forms a plurality of these printed circuit board (PCB)s are shown.
Embodiment
Below, form of implementation of the present invention is described with reference to the accompanying drawings.
Fig. 1 illustrates an example of position detecting device of the present invention.
This position detecting device A has optical directory means 10 and camera head 20; The picture that this optical directory means 10 will incide two benchmark positions of entrance port 11a is divided into two pictures corresponding with each this benchmark position, and these two pictures are guided to exit portal 11b respectively; This camera head 20 is respectively facing to two above-mentioned exit portal 10b, 10b; By a plurality of camera datas that obtained by these a plurality of camera heads 20 are carried out Flame Image Process, detect the coordinate at above-mentioned each benchmark position.
According to a preferred example of this form of implementation, the said reference position forms two position 31a, the 31a (with reference to Fig. 1) that horn shape in hole 31 of the コ word shape of the metal pattern corresponding with drift 30 (base station).
Optical directory means 10 in main body cover 11, have make from two benchmark position 31a, 31a of entrance port 11a incident as both sides all towards the rear the 1st reflection unit 12 of reflection, will be divided into by the picture of the 1st reflection unit 12 reflections a plurality of pictures corresponding with each said reference position 31a optical branching device 13, and each picture of cutting apart by this optical branching device 13 of reflection it is guided to the 2nd reflection unit 14 of above-mentioned exit portal 10b.
Main body cover 11 is T word shape substantially under plan view, 1 the entrance port 11a that has downwardly facing opening at its front position, simultaneously, the side has two exit portal 11b, 11b towards the top opening in its back-end, will from 1 entrance port 11a incident as guide to two exit portal 11b after the branch, 11b ground forms hollow shape with inside.
The 1st reflection unit 12 is a catoptron, and by fixing by the angle of inclination of about 45 degree in the main body cover 11 of horizontal supporting, reflection is from the picture of two benchmark position 31a, 31a of below incident, and the rear in main body cover 11 guides.The 1st reflection unit 12 then also can be prism as similarly acting on above-mentioned.
Optical branching device 13 is the prism mirror of cardinal principle isosceles triangle section, makes its top be fixed in the central rearward end of main body cover 11 under the state of above-mentioned the 1st reflection unit 12.This optical branching device 13 will from the picture of the 1st reflection unit 12 side incidents towards about 45 degree directions be divided into two partly reflections, these two pictures cutting apart acquisition are guided to the 2nd reflection unit 14.
The 2nd reflection unit 14 is so-called top-sprism (also claiming roof shape prism or reflecting surface prism), makes from the picture of plane of incidence 14a incident to be reflected by two reflecting surface 14b, 14c in this prism successively, from exit facet 14d outgoing (with reference to Fig. 3).The angle of above-mentioned two reflecting surface 14b, 14c is 90 degree, and the crest line 141 of these reflectings surface 14b, 14c is 45 degree with the angle of plane of incidence 14a.
Acquisition is cut apart in the reflection of the 2nd reflection unit 14 by optical branching device 13 each picture with its be fixed to with guiding to exit portal 11b main body cover 11 about each inboard of exit portal 11b, 11b, and these two the 2nd reflection units 14,14 dispose its plane of incidence 14a, 14a opposite to each other.
Describe the effect of the 2nd reflection unit 14 below in detail.As shown in Figure 3, literal P incide the coordinate (di, di ') of plane of incidence 14a as p the time, in the some 14b1 of reflecting surface 14b reflection, become on the X-Z plane, return clockwise turn 90 degrees, the picture p ' that obtains of revolution 45 degree clockwise on X-Y plane.
This, becomes and return the picture p that turn 90 degrees, turns round 45 degree clockwise on X-Y plane clockwise on the X-Z plane in the some 14c1 of reflecting surface 14c reflection as p ' ", from coordinate (do, the do ') outgoing of exit facet 14d.
Yet, optical directory means 10 according to above-mentioned formation, as shown in Figure 2, be shown in the literal R of workpiece face Wx and being reflected by inciding the 1st reflection unit 12 of literal L of the 1st reflection unit 12 belows, become picture r2 vertical and picture l2 with above-mentioned workpiece face Wx as r1, l1.
These incide optical branching device 13 as r2 with as l2, be divided into above-mentioned two literal R and literal L corresponding respectively two as r3 and as l3 reflected.These as r3 and as l3 in the opposite direction along with directly advance to the rectangular direction of the incident direction of optical branching device 13, incide the 2nd reflection unit 14 on right side and the 2nd reflection unit 14 in left side respectively.
By the reflecting surface 14b (with reference to Fig. 3) in the 2nd reflection unit 14 that reflexes to the right side, return the picture r4 that turn 90 degrees acquisition as r3 thereby become the literal R that makes toward the clockwise direction on the workpiece face Wx.
In addition, reflect the picture l4 that becomes literal L turning anticlockwise 90 acquisitions that make on the workpiece face Wx as l3 by the 2nd reflection unit 14 interior reflecting surface 14b by the left side.
Camera head 20 about inciding respectively as r4 with as l4.
These camera heads 20,20 are ccd video camera, and two outgoing 11b, the 11b ground towards optical directory means 10 disposes respectively.
Each camera head 20 is bearing in the horizontal mobile mechanism (not shown) that is constituted by ball screw mechanism, guide rail, servo motor etc. towards the XY direction with moving horizontally.
In addition, be electrically connected display 43 (with reference to Fig. 4) by image two branch circuit plate 41 and image processing apparatus 42, the display 43,43 about will being shown in respectively by two images of two camera heads, 20,20 shootings in the rear end of each camera head 20.
Position detecting device A according to above-mentioned formation, the picture of two benchmark position 31a, 31a on the metal pattern 30 is reflected successively by the 1st reflection unit 12, optical branching device the 13, the 2nd reflection unit 14, thereby be divided into two pictures corresponding to each said reference position 31a, this each picture of cutting apart is by camera head 20 shootings, be shown in each display 43, simultaneously, carry out Flame Image Process, detect its coordinate by image processing apparatus 42.
At this moment, metal pattern 30 is by the field range S about on relative this metal pattern 30, the state configuration that S has angle, about field range S, the different occasion of width of width and two benchmark position 31a, 31a between S, by towards with the configuration direction of two the 2nd reflection units 14,14 substantially the direction of orthogonal or/and parallel substantially direction moves horizontally both sides' camera head 20,20, each position of field range S, S about removable.
For example, such shown in Fig. 5 (a1), field range S, the S of metal pattern 30 about on this metal pattern 30 that is relatively obtained by two camera heads 20,30 has in the clockwise direction under the state of angle and disposes, and, wide occasion between field range S, S about the width ratio of two benchmark position 31a, 31a, court is with the configuration direction orthogonal ground of two the 2nd reflection units 14 and near mobile two camera heads 20,20 of the direction (the X1 direction of Fig. 1) of two benchmark position 31a.Like this, the field range S on right side moves towards the Rx1 direction, and the field range S in left side moves towards the Lx1 direction, promptly moves (Fig. 5 (b1)) towards the direction that enlarges between two field range S, S.
In addition, two camera heads 20,20 are moved to (the Y2 direction of Fig. 1) towards the left parallel with the configuration direction of two the 2nd reflection units 14.Like this, the field range S on right side moves towards Ry2 direction (the following direction of Fig. 5), and the field range SL in left side moves (Fig. 5 (c1)) to Ly2 direction (the last direction of Fig. 5).
Therefore, two benchmark position 31a, 31a are positioned at the deflection position of the cardinal principle central authorities of corresponding field range S respectively, on display 43,43, also at the benchmark position 31a of the position display correspondence of the cardinal principle central authorities of each display 43 of deflection.
Each coordinate of benchmark position 31a, 31a is detected by Flame Image Process, as required, revises the angle of metal pattern 30 and the drift (not shown) corresponding with this metal pattern 30 or coincides with the angle of the printing element W of this metal pattern 30.
The moving direction of above-mentioned camera head 20 is an example, two camera heads 20 can be moved towards desired horizontal direction by above-mentioned horizontal mobile mechanism respectively, about field range S, S respectively towards moving with the corresponding direction of moving direction of corresponding camera head 20.
Promptly, relative to moving of the X1 direction of the camera head 20 on right side, its field range S moves towards the Rx1 direction, relative to moving of the X2 direction of the camera head 20 on right side, its field range S moves towards the Rx2 direction, and relative to moving of the Y1 direction of the camera head 20 on right side, its field range S moves towards the Ry1 direction, relative to moving of the Y2 direction of the camera head 20 on right side, its field range S moves towards the Ry2 direction.
The moving of X1 direction relative to the camera head 20 in left side, its field range S moves towards the Lx1 direction, the moving of X2 direction relative to the camera head 20 in left side, its field range S moves towards the Lx2 direction, the moving of Y1 direction relative to the camera head 20 in left side, its field range S moves towards the Ly1 direction, and relative to the moving of Y2 direction of the camera head 20 in left side, its field range S moves towards the Ly2 direction.
Below, illustrate that according to Fig. 6 the position detecting device A that uses above-mentioned formation is positioned printed circuit board (PCB) w for order on the metal pattern 30 (base station).
At first, shown in Fig. 6 (a),, carry out Flame Image Process, thereby detect coordinate by 42 pairs of photographed images of making a video recording respectively of image processing apparatus by camera head 20 for two benchmark position 31a, 31a on the metal pattern 30 of mounting printing element W.
Then, detecting mounting by above-mentioned position detecting device A is two each coordinates (with reference to Fig. 6 (b)) that go out horn shape benchmark position w1a, w1a on the recontour line w1 of ㄈ word shape of printed circuit board (PCB) w end in above-mentioned metal pattern 30 printing element W nearby with said reference position 31a, position that 31a is corresponding.
By the revolution that can carry out horizontal direction and mobile known conveying mechanism or travel mechanism's (not shown) printing element W or metal pattern 30 are moved towards XY direction or gyratory directions, make benchmark position w1a, w1a consistent with benchmark position 31a, 31a, overlap printing element W and metal pattern 30, the printed circuit board (PCB) w end on printing element W is by the drift (not shown) stamping-out finishing hole w2 (with reference to Fig. 6 (c)) of ㄈ word shape section.
Below, another example of position detecting device of the present invention is described according to Fig. 7.
Above-mentioned position detecting device A can move horizontally two camera heads, 20,20 ground and constitute, and this position detecting device B fixes two camera heads 20,20, and can move horizontally optical directory means 10 towards the XY direction, about other formation, because it is same with above-mentioned position detecting device A, so, adopt same-sign, omit the detailed description that repeats.
Can make optical directory means 10 the same with the occasion of above-mentioned position detecting device A, constitute (not shown) by ball screw mechanism, guide rail, servo motor etc. towards the horizontal mobile mechanism that the XY direction moves.
According to this position detecting device A, about field range S, S towards moving with the corresponding direction of the moving direction of optical directory means 10.
That is, relative to moving of the X1 of optical directory means 10 direction, the field range S on right side moves towards the Rx2 direction, and simultaneously, the field range S in left side moves towards the Lx2 direction.
In addition, relative to moving of the X2 of optical directory means 10 direction, the field range S on right side moves towards the Rx1 direction, and simultaneously, the field range S in left side moves towards the Lx1 direction.
In addition, relative to moving of the Y1 of optical directory means 10 direction, the field range S on right side moves towards the Ry2 direction, and simultaneously, the field range S in left side moves towards the Ly2 direction.
In addition, relative to moving of the Y2 of optical directory means 10 direction, the field range S on right side moves towards the Ry1 direction, and simultaneously, the field range S in left side moves towards the Ly1 direction.
Above-mentioned position detecting device A makes two camera heads 20,20 constitute respectively with moving horizontally, but also two camera heads, 20,20 one can be fixed, make this two camera head 20,20 is moved towards the XY direction, thereby obtain simpler structure.
In addition, as a preference, above-mentioned position detecting device A and B have two displays 43,43 by corresponding respectively to two camera heads 20,20, make the tracing property that moves of relative visual field scope S, S good, simultaneously, the area of each field range S can be guaranteed broad, but also the photographed images of two camera heads 20,20 can be shown to single display.
In addition, above-mentioned position detecting device A and B show picture with two benchmark position 31a, 31a and are divided into two, the example of by camera head these two pictures cutting apart acquisition being made a video recording respectively, but also the benchmark position more than 3 can be divided into a plurality of pictures corresponding, respectively a plurality of pictures that this cuts apart acquisition be made a video recording by camera head with each this benchmark position.
In addition, above-mentioned position detecting device A and B can be in same device, have optical directory means 10, the formation of camera head 20,20, image processing apparatus 42, display 43,43 etc., also can be the formation that a part or each device with above-mentioned formation are provided with as independent device.
In addition, above-mentioned optical directory means 10 show have the 1st reflection unit 12, optical branching device 13, and the preferred example of two the 2nd reflection units 14,14, but as for the picture of at least two reference parts being divided into formation, then for example also can forming the formation that only has optical branching device 13 or on the basis of the formation of above-mentioned optical directory means 10, appending the optical branching device or/and the formation of reflection unit to a plurality of pictures of each reference part correspondence.
In addition, the benchmark position that above-mentioned position detecting device A and B form the shooting object is not limited to benchmark position 31a on the above-mentioned metal pattern 30 and the benchmark position w1a on the above-mentioned printing element W, for example also can be to be located on the metal pattern or at least two alignment marks that printing element is first-class.
The present invention constitutes as described above, so, can obtain such effect of following record.
Because the picture at least two benchmark positions is divided into corresponding with each benchmark position respectively a plurality of pictures, by camera head this each picture is made a video recording, so, a plurality of camera heads are interfered mutually, can make a video recording to a plurality of benchmark position that disposes by slight gap in the short time by high precision, can detect the coordinate (claim 1-3) at each benchmark position.
And, as optical directory means and camera head are relatively moved, then each benchmark position can be contained in this field range is moved.For example, at the benchmark position be two and make two camera heads simultaneously towards with the configuration direction of two the 2nd reflection units occasion that moves of the direction of orthogonal substantially, along with moving of two camera heads, can make two field ranges towards moving near the direction of leaving.In addition, be two at the benchmark position and make two camera heads simultaneously towards the occasion that moves with the parallel substantially directions of the configuration direction of two the 2nd reflection units, along with moving of two camera heads, can make two above-mentioned sides within the vision towards with the above-mentioned moving direction of camera head substantially the direction of orthogonal move, simultaneously, make the opposing party court direction opposite move (claim 4-7) with the moving direction of an above-mentioned side's field range.
In addition, localization method according to above-mentioned printed circuit board (PCB), the assigned position of the printed circuit board of can be easily and correctly will be formed at printing element to the base stations such as metal pattern, and then can carry out the perforation processing of printed circuit board (PCB) accurately and cut off processing etc.

Claims (8)

1. method for detecting position, the picture at least two benchmark positions is divided into a plurality of pictures corresponding with each this benchmark position optically, by each camera head these a plurality of pictures of cutting apart acquisition are made a video recording, thereby these a plurality of camera datas are carried out the coordinate that Flame Image Process detects above-mentioned each benchmark position respectively.
2. position detecting device, picture with at least two benchmark positions will inciding the entrance port be divided into a plurality of pictures corresponding optically with each this benchmark position and with these a plurality of pictures of cutting apart acquisition respectively to the optical directory means of exit portal guiding and a plurality of respectively facing to the camera head of above-mentioned exit portal, by respectively the camera data that is obtained by these a plurality of camera heads being carried out Flame Image Process, thereby detect the coordinate at above-mentioned each benchmark position.
3. position detecting device according to claim 2 is characterized in that: above-mentioned optical directory means has the 1st reflection unit that the picture that makes at least two benchmark positions inciding above-mentioned entrance port reflects in the same direction, will be divided into the corresponding a plurality of pictures in each said reference position by the picture of the 1st reflection unit reflection and make these a plurality of pictures of cutting apart acquisition guide to optical branching device, and each picture of being cut apart by this optical branching device of reflection and it is guided to the 2nd reflection unit of above-mentioned exit portal of different directions respectively.
4. according to claim 2 or 3 described position detecting devices, it is characterized in that: relatively move by making above-mentioned optical directory means and above-mentioned camera head, the field range of the picture at each benchmark position that making makes a video recording obtains moves.
5. position detecting device according to claim 4, it is characterized in that: the said reference position is two, by above-mentioned optical directory means and two above-mentioned camera heads being relatively moved, thereby make two above-mentioned field ranges towards moving near the direction of leaving in direction with the configuration direction orthogonal of two above-mentioned the 2nd reflection units.
6. position detecting device according to claim 4, it is characterized in that: the said reference position is two, by above-mentioned optical directory means and two above-mentioned camera heads are relatively moved, thereby the side in two above-mentioned field ranges is moved towards the direction with above-mentioned moving direction orthogonal, and the opposing party court direction opposite with the moving direction of an above-mentioned side's field range moved.
7. position detecting device according to claim 5, it is characterized in that: the said reference position is two, by above-mentioned optical directory means and two above-mentioned camera heads are relatively moved, thereby the side in two above-mentioned field ranges is moved towards the direction with above-mentioned moving direction orthogonal, and the opposing party court direction opposite with the moving direction of an above-mentioned side's field range moved.
8. localization method that uses the printed circuit board (PCB) of described method for detecting position of claim 1 or the described position detecting device of claim 2, it is characterized in that: detect the coordinate at least two benchmark positions on the base station and a plurality of coordinates on the printed circuit board (PCB) corresponding respectively with these coordinates, a side or both sides in above-mentioned base station and the above-mentioned printed circuit board (PCB) are moved, make the said reference position on the above-mentioned printed circuit board (PCB) consistent with the said reference position on the above-mentioned base station.
CNB031067808A 2002-02-28 2003-02-28 Position detecting method, position detecting apparatus and method for positioning printed circuit board Expired - Fee Related CN1226592C (en)

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JP53958/2002 2002-02-28
JP2002053958A JP2003254714A (en) 2002-02-28 2002-02-28 Method and detector for detecting position, and method of positioning printed circuit board

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CN1487265A CN1487265A (en) 2004-04-07
CN1226592C true CN1226592C (en) 2005-11-09

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CN106444852B (en) * 2015-08-07 2019-07-26 欧姆龙株式会社 Image processing apparatus, method for correcting position and commercial plant

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