CN114390172B - Device for automatically adjusting angle of auxiliary light source of line scanning camera according to thickness of artificial board - Google Patents
Device for automatically adjusting angle of auxiliary light source of line scanning camera according to thickness of artificial board Download PDFInfo
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- CN114390172B CN114390172B CN202111656417.XA CN202111656417A CN114390172B CN 114390172 B CN114390172 B CN 114390172B CN 202111656417 A CN202111656417 A CN 202111656417A CN 114390172 B CN114390172 B CN 114390172B
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- 238000005452 bending Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
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Abstract
The invention discloses a device for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board, which comprises an artificial board inspection board production line conveyor belt, a line scanning camera, a supporting device, an intermediate piece and an auxiliary light source adjusting mechanism; the supporting device is used for connecting the intermediate piece; the middle piece can move up and down along the supporting device; the middle piece is used for naturally falling to a position between the middle piece and the upper surface of the artificial board inspection board production line conveyor belt along the supporting device when the bottom of the middle piece is not contacted with the artificial board, and keeping a certain height; after contacting the artificial board, the bottom of the intermediate piece can slide or roll on the upper surface of the artificial board inspection line, and the intermediate piece rises in proportion to the thickness of the artificial board; the auxiliary light source adjusting mechanism comprises an auxiliary light source fixing rotating shaft and an auxiliary light source angle adjusting shaft. According to the invention, the auxiliary light source angle adjusting shaft is driven to automatically adjust the angle of the auxiliary light source through the up-and-down movement of the middleware, so that the area illuminated by the auxiliary light source is always positioned in the scanning area of the line scanning camera.
Description
Technical Field
The invention relates to the technical field of artificial board surface defect scanning, in particular to a device for automatically adjusting an angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board.
Background
The surface defect of the artificial board is one of important indexes for judging the quality of the artificial board, and the method for collecting the surface defect of the artificial board is generally to shoot the surface of the artificial board line by using a high-speed line scanning camera when the artificial board moves horizontally on a production line of the artificial board, splice the line by line shot pictures into a large picture and transmit the large picture to automatic identification software for carrying out. Because the shooting speed of the line scanning camera is extremely high, an auxiliary light source with high brightness, no stroboscopic effect, no chromatic aberration and excellent uniformity and consistency is required to illuminate the shooting area, so that the line scanning camera can perform scanning shooting. The auxiliary light source of the line scanning camera has great influence on the imaging quality of the line scanning camera.
In the field of scanning defects on the surface of an artificial board, an auxiliary light source of a line scanning camera is generally installed obliquely, and a certain angle is formed between the angle of the light source and the artificial board, so that more defects can be acquired. The traditional auxiliary light source is installed in a fixed angle, so that the areas illuminated by the auxiliary light source are different for artificial boards with different thicknesses, and the areas which can be illuminated by the auxiliary light source are limited in order to achieve high brightness and high light gathering property. If the fixed angle is adjusted, the auxiliary light source can illuminate the scanning area of the artificial board with specific thickness, and for the artificial boards with other thicknesses, the illuminated area and the scanning area of the line scanning camera are not completely overlapped, so that the photo becomes dark, and the defects of the artificial board are difficult to identify.
And on the artificial board inspection board production line, the artificial boards with different thicknesses can be continuously detected, and the production line efficiency is extremely low due to the fact that the production line is stopped to adjust the angle of the light source.
Disclosure of Invention
The invention aims at the defects of the prior art, and provides a device for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board.
In order to solve the technical problems, the device for automatically adjusting the angle of the auxiliary light source of the line scanning camera according to the thickness of the artificial board comprises an artificial board inspection board production line conveyor belt, a line scanning camera, a supporting device, a middleware and an auxiliary light source c adjusting mechanism;
the artificial board inspection board production line conveyor belt is used for conveying artificial boards with different thicknesses;
the line scanning camera is fixedly arranged above the artificial board inspection board production line conveyor belt and is used for enabling a scanning area to be arranged on the artificial board inspection board production line conveyor belt and at the rear part along the artificial board conveying direction;
the supporting device is used for connecting the intermediate piece; the middle piece can move up and down along the supporting device;
the middle piece is used for naturally falling to a position between the middle piece and the upper surface of the artificial board inspection board production line conveyor belt along the supporting device when the bottom of the middle piece is not contacted with the artificial board, and keeping a certain height; after contacting the artificial board, the bottom of the intermediate piece can slide or roll on the upper surface of the artificial board inspection line, and the intermediate piece rises in proportion to the thickness of the artificial board;
the auxiliary light source adjusting mechanism comprises an auxiliary light source fixing rotating shaft and an auxiliary light source angle adjusting shaft; the auxiliary light source fixing rotating shaft is fixedly connected with the tail part of the auxiliary light source; the auxiliary light source angle adjusting shaft is connected with the side face of the auxiliary light source, and the auxiliary light source angle adjusting shaft contacts the intermediate piece; the auxiliary light source angle adjusting shaft can move up and down along with the middleware and drive the auxiliary light source to rotate around the fixed rotating shaft for a certain angle, so that the area illuminated by the auxiliary light source is always positioned in the scanning area of the line scanning camera.
In particular, the supporting device is two supporting columns arranged at one side of the artificial board inspection board production line conveyor belt; a vertical guide rail is arranged on the support column; a damper is connected to the top in the vertical guide rail; the damper is connected with the intermediate piece.
In particular, the damper is connected to the intermediate piece by means of a connecting slider.
In particular, the intermediate piece comprises a cross bar and a vertical bar; the cross rod is connected with the supporting device and contacts with the auxiliary light source angle adjusting shaft; the number of the vertical rods is more than two; the vertical rod is perpendicular to the cross rod and is fixedly connected with the cross rod; the tail end of the vertical rod is connected with a small wheel; the small wheel can contact the artificial board and roll on the artificial board inspection line.
In particular, the radius of the small wheel is larger than the maximum thickness of the artificial board, and the distance between the lowest end of the small wheel and the upper surface of the artificial board inspection line conveyor belt is smaller than the distance between the upper surface of the artificial board with the minimum thickness and the upper surface of the artificial board inspection line conveyor belt.
Particularly, the middle part of the cross rod is provided with a cross rod bending part; the angle adjusting shaft of the auxiliary light source is fixedly arranged at the bending part of the cross rod.
In particular, a torsion spring hanger is also included; the torsion spring hanging bracket is arranged on the same side as the supporting device and is connected with the middle piece.
Particularly, the auxiliary light source angle adjusting shaft is adjusted to a position with a horizontal distance of lg from the central point of the auxiliary light source fixed rotating shaft; where lg= (Δh×Δh×tan (θ))/(Δh×tan (θ)/tan (β) -1)); the distance between the light source fixing rotating shaft and the upper surface of the thickest artificial board is h, and the thickness difference of the thickest artificial board is delta h; when the artificial board is the largest in thickness, the included angle between the light ray emitting direction and the vertical direction is theta; if the width of the light source is w, calculating an included angle beta between the light ray emitting direction and the vertical direction when the thickness of the artificial board is minimum; tan (β) = (h×tan (θ) -w)/(h+Δh).
A method for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board by using the device comprises the following steps:
(1) The artificial board moves forwards on the artificial board inspection board production line conveyor belt and contacts the bottom of the intermediate piece;
(2) The intermediate piece is lifted up to move up along the supporting device;
(3) The auxiliary light source angle adjusting shaft contacted with the middle piece moves upwards to drive the auxiliary light source to rotate around the auxiliary light source fixed rotating shaft, so that the angle of the auxiliary light source is adjusted; according to the different thickness of the artificial board, the lifted distance of the intermediate piece is different, the angle of the auxiliary light source is also different, but the position illuminated by the auxiliary light source after the angle of the auxiliary light source is regulated is always positioned in the shooting area of the line scanning camera;
(4) The artificial board continues to move forwards until the angle of the auxiliary light source is stable;
(5) The artificial board enters a line scanning camera shooting area, and the line scanning camera starts shooting;
(6) The artificial board leaves the shooting area of the line scanning camera, and the line scanning camera stops shooting;
(7) The middle piece is suspended, and naturally falls to a certain height with the upper surface of the artificial board inspection board production line conveyor along the supporting device;
(8) The next artificial board comes and starts over from step (1).
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the power of the artificial board inspection line is utilized, the middleware rises to a certain height in proportion to the thickness of the artificial board according to different artificial board thicknesses, and drives the auxiliary light source angle adjusting shaft to automatically adjust the angle of the auxiliary light source, so that the area illuminated by the auxiliary light source is always positioned in the scanning area of the line scanning camera, and the imaging quality is improved. The invention uses a mechanical structure, and has simple and reliable structure; the artificial board is powered by the motion of the artificial board, so that no additional power source is needed; the light source angle adjusting shaft can be adjusted according to the relative installation positions of the line scanning camera and the light source, and the application range is wide.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side view of a structure according to a first embodiment of the present invention;
FIG. 2 is a top view of a first embodiment of the present invention;
FIG. 3 is a schematic diagram of an optical path of an auxiliary light source according to a first embodiment of the present invention;
FIG. 4 is a side view of a second embodiment of the present invention;
fig. 5 is a top view of a second embodiment of the present invention.
In the figure, 1. Support column; 2. the auxiliary light source is used for fixing the rotating shaft; 3. an auxiliary light source; 4. an auxiliary light source angle adjustment shaft; 5. a cross bar; 6. a vertical rod; 7. a small wheel; 8. an artificial board; 9. a conveying belt of a board production line of the artificial board inspection board; 10. a line scan camera; 11. torsion spring hanger.
Description of the embodiments
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
It should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an azimuth or a positional relationship based on that shown in the drawings, or that the inventive product is commonly put in place when used, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. It will be apparent to those skilled in the art that the specific meaning of the terms described above in the present invention,
examples
As shown in fig. 1 and 2, the device for automatically adjusting the angle of the auxiliary light source of the line scanning camera according to the thickness of the artificial board in the embodiment comprises an artificial board inspection board production line conveyor belt 9, a line scanning camera 10, a supporting device, a middleware and an auxiliary light source adjusting mechanism.
The artificial board inspection board production line conveyor belt 9 is used for conveying artificial boards 8 with different thicknesses.
The line scanning camera 10 is fixedly arranged above the artificial board inspection board production line conveyor 9, and a scanning area is arranged on the artificial board inspection board production line conveyor 9 and at the rear part along the conveying direction of the artificial board 8.
And the supporting device is used for connecting the intermediate piece. The intermediate piece can move up and down along the supporting device. The supporting device is two supporting columns 1 arranged on one side of a conveying belt 9 of the artificial board inspection board production line. The support column 1 is provided with a vertical guide rail. The top in the vertical guide rail is connected with a damper. The damper is connected with the intermediate piece. The damper is connected with the intermediate piece through the connecting sliding block.
The middle piece is used for naturally falling to a position between the middle piece and the upper surface of the artificial board inspection board production line conveyor belt 9 along the supporting device when the bottom of the middle piece is not contacted with the artificial board 8; after contacting the artificial board 8, the bottom of the intermediate member can slide or roll on the upper surface of the artificial board inspection line, and the intermediate member rises in proportion to the thickness of the artificial board 8. The intermediate piece comprises a cross bar 5 and a vertical bar 6. The cross rod 5 is connected with the supporting device and contacts the auxiliary light source angle adjusting shaft 4. The vertical bars 6 of this embodiment are four. The vertical rod 6 is perpendicular to the cross rod 5 and fixedly connected with the cross rod 5. The tail end of the vertical rod 6 is connected with a small wheel 7. The small wheel 7 can contact the artificial board 8 and can roll on the artificial board inspection line. The radius of the small wheel 7 is larger than the maximum thickness of the artificial board 8, and the distance between the lowest end of the small wheel 7 and the upper surface of the artificial board detection line conveyor belt 9 is slightly smaller than the distance between the upper surface of the artificial board 8 with the minimum thickness and the upper surface of the artificial board detection line conveyor belt 9. The middle part of the cross bar 5 is provided with a cross bar bending part. The angle adjusting shaft 4 of the auxiliary light source is fixedly arranged at the bending part of the cross rod. Because the auxiliary light source 3 must illuminate the whole panel and the vertical bar 6 is in contact with the panel surface of the artificial board 8, the cross bar 5 cannot block the line of sight of the line scanning camera 10, so that the curved arrangement of the position in contact with the light source allows the line scanning camera 10 to work better.
The auxiliary light source adjusting mechanism comprises an auxiliary light source fixing rotating shaft 2 and an auxiliary light source angle adjusting shaft 4. The auxiliary light source fixing rotating shaft 2 is fixedly connected with the tail part of the auxiliary light source 3. The auxiliary light source angle adjustment shaft 4 is connected to the side face of the auxiliary light source 3, and the auxiliary light source angle adjustment shaft 4 contacts the intermediate member. The auxiliary light source angle adjusting shaft 4 is fixed, can move up and down along with the middleware and drives the auxiliary light source 3 to rotate around the fixed rotation shaft by a certain angle, so that the area illuminated by the auxiliary light source 3 is always positioned in the scanning area of the line scanning camera 10.
The method for automatically adjusting the angle of the auxiliary light source of the line scanning camera according to the thickness of the artificial board by using the device comprises the following steps:
(1) The artificial board 8 moves forward on the artificial board inspection board production line conveyor belt 9, contacts the first vertical rod 6, and the small wheel 7 on the first vertical rod 6 contacts the upper surface of the artificial board 8 and rolls on the artificial board 8, so that damage to the artificial board 8 can be avoided.
(2) The first vertical bar 6 is lifted up, causing one end of the cross bar 5 to move upwards along the support means.
(3) The auxiliary light source angle adjusting shaft 4 contacted with the cross rod 5 also moves upwards to drive the auxiliary light source 3 to rotate around the auxiliary light source fixed rotating shaft 2, so that the angle of the auxiliary light source 3 is adjusted; according to the thickness of the artificial board 8, the lifted distance of the intermediate member is different, and the angle of the auxiliary light source 3 is also different, but the position illuminated by the auxiliary light source 3 after adjusting the angle of the auxiliary light source 3 is always located in the shooting area of the line scanning camera 10.
(4) The artificial board 8 continues to move forward, and the angle of the auxiliary light source 3 is basically stable as the second vertical rod 6 contacts the artificial board 8 and lifts upwards until the second vertical rod 6 rolls on the artificial board 8; even if the artificial board 8 contacts the third vertical rod 6 and the fourth vertical rod 6, at this time, since the four vertical rods 6 are all at the same height, the artificial board 8 only slightly contacts the third vertical rod 6 or the fourth vertical rod 6, and the stability of the light source angle is not affected.
(5) The artificial board 8 enters the photographing area of the line scanning camera 10, and the line scanning camera 10 starts photographing.
(6) The artificial board 8 leaves the photographing area of the line scanning camera 10, and the line scanning camera 10 stops photographing.
(7) The vertical rod 6 is suspended, and the vertical rod 6 naturally falls to a certain height along the supporting device and keeps a certain height with the upper surface of the artificial board inspection board production line conveyor belt 9;
(8) The next artificial board 8 is restarted from step (1).
As shown in fig. 3, the derivation process of the installation position of the auxiliary light source angle adjustment shaft is calculated according to the installation height of the auxiliary light source fixed rotation shaft, the maximum thickness difference of the artificial board, and the like.
The point A is an auxiliary light source fixing rotating shaft, the point G is an auxiliary light source angle adjusting shaft, the BD is the upper surface of the thinnest artificial board, the EC is the upper surface of the thickest artificial board, the ED is the difference between the maximum thickness and the minimum thickness of the artificial board, and the point B, C is the middle position where the auxiliary light source emits light rays to contact the artificial board. To ensure that the auxiliary light source always falls in the shooting area of the line scan camera, the horizontal distance of B, C cannot be greater than the auxiliary light source width.
The auxiliary light source angle adjustment axis G is positioned at a position where the distance of the HG is equal to the distance of the ED (i.e., the maximum thickness difference of the artificial board) when the thickness of the artificial board is minimum, i.e., a position where the maximum height of the auxiliary light source lifted is equal to the maximum thickness difference of the board.
The fixed known amounts are: distance h=l between auxiliary light source fixed rotation axis and the upper surface of thickest artificial board AE Maximum artificial board thickness difference Δh=l ED When the artificial board is maximum in thickness, the included angle theta= CAD between the light emitting direction and the vertical direction, and the width of the auxiliary light source is w.
Then the angle β (++bad) between the light emission direction and the vertical direction can be calculated when the artificial plate thickness is minimum:
wherein: tan (β) = (h tan (θ) -w)/(h+Δh);
it can be calculated that when the thickness of the plate is minimum, the horizontal distance between the auxiliary light source angle adjusting shaft and the center point of the fixed rotating shaft is as follows:
lg = (Δh *Δh * tan(θ))/( Δh *(tan(θ)/tan(β) -1))；
namely, in the concrete implementation, the thickness of the plate is minimized, the angle adjusting shaft of the auxiliary light source is adjusted to the position with the horizontal distance of lg from the center point of the fixed rotating shaft,
examples
As shown in fig. 4 and 5, the structure and the angle adjustment method of the present embodiment are the same, except that the present embodiment further includes a torsion spring hanger 11. The torsion spring hanger 11 is arranged on the same side as the supporting device and is connected with the cross bar 5. The torsion spring hanger 11 can offset the gravity of the cross rod 5, the vertical rod 6 and the auxiliary light source 3, so that the auxiliary light source adjusting mechanism can better adjust the irradiation angle of the auxiliary light source 3.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the patentees may make various modifications or alterations within the scope of the appended claims, and are intended to be within the scope of the invention as described in the claims. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. The foregoing is merely a preferred embodiment of the invention, and it should be noted that, due to the limited text expressions, there is objectively no limit to the specific structure, and that, for a person skilled in the art, modifications, adaptations or variations may be made without departing from the principles of the present invention, and the above technical features may be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.
Claims (9)
1. The utility model provides a device according to supplementary light source angle of wood-based plate thickness automatic adjustment line scanning camera which characterized in that: comprises an artificial board inspection board production line conveyor belt, a line scanning camera, a supporting device, a middle piece and an auxiliary light source adjusting mechanism;
the artificial board inspection board production line conveyor belt is used for conveying artificial boards with different thicknesses;
the line scanning camera is fixedly arranged above the artificial board inspection board production line conveyor belt and is used for enabling a scanning area to be arranged on the artificial board inspection board production line conveyor belt and at the rear part along the artificial board conveying direction;
the supporting device is used for connecting the intermediate piece; the middle piece can move up and down along the supporting device;
the middle piece is used for naturally falling to a position between the middle piece and the upper surface of the artificial board inspection board production line conveyor belt along the supporting device when the bottom of the middle piece is not contacted with the artificial board, and keeping a certain height; after contacting the artificial board, the bottom of the intermediate piece can slide or roll on the upper surface of the artificial board inspection line, and the intermediate piece rises in proportion to the thickness of the artificial board;
the auxiliary light source adjusting mechanism comprises an auxiliary light source fixing rotating shaft and an auxiliary light source angle adjusting shaft; the auxiliary light source fixing rotating shaft is fixedly connected with the tail part of the auxiliary light source; the auxiliary light source angle adjusting shaft is connected with the side face of the auxiliary light source, and the auxiliary light source angle adjusting shaft contacts the intermediate piece; the auxiliary light source angle adjusting shaft can move up and down along with the middleware and drive the auxiliary light source to rotate around the fixed rotating shaft for a certain angle, so that the area illuminated by the auxiliary light source is always positioned in the scanning area of the line scanning camera.
2. The device for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board as claimed in claim 1, wherein: the supporting device is two supporting columns arranged on one side of the artificial board inspection board production line conveyor belt; a vertical guide rail is arranged on the support column; a damper is connected to the top in the vertical guide rail; the damper is connected with the intermediate piece.
3. The device for automatically adjusting the angle of the auxiliary light source of the line scanning camera according to the thickness of the artificial board as claimed in claim 2, wherein: the damper is connected with the middle piece through the connecting sliding block.
4. The device for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board as claimed in claim 1, wherein: the intermediate piece comprises a cross bar and a vertical bar; the cross rod is connected with the supporting device and contacts with the auxiliary light source angle adjusting shaft; the number of the vertical rods is more than two; the vertical rod is perpendicular to the cross rod and is fixedly connected with the cross rod; the tail end of the vertical rod is connected with a small wheel; the small wheel can contact the artificial board and roll on the artificial board inspection line.
5. The device for automatically adjusting the angle of the auxiliary light source of the line scan camera according to the thickness of the artificial board as claimed in claim 4, wherein: the radius of the small wheel is larger than the maximum thickness of the artificial board, and the distance between the lowest end of the small wheel and the upper surface of the artificial board inspection line conveyor belt is slightly smaller than the distance between the upper surface of the artificial board with the minimum thickness and the upper surface of the artificial board inspection line conveyor belt.
6. The device for automatically adjusting the angle of the auxiliary light source of the line scan camera according to the thickness of the artificial board as claimed in claim 4, wherein: the middle part of the cross rod is provided with a cross rod bending part; the angle adjusting shaft of the auxiliary light source is fixedly arranged at the bending part of the cross rod.
7. The device for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board as claimed in claim 1, wherein: the device also comprises a torsion spring hanger; the torsion spring hanging bracket is arranged on the same side as the supporting device and is connected with the middle piece.
8. The device for automatically adjusting the angle of an auxiliary light source of a line scanning camera according to the thickness of an artificial board as claimed in claim 1, wherein: the auxiliary light source angle adjusting shaft is adjusted to a position with a horizontal distance of lg from the center point of the auxiliary light source fixed rotating shaft; where lg= (Δh×Δh×tan (θ))/(Δh×tan (θ)/tan (β) -1)); the distance between the light source fixing rotating shaft and the upper surface of the thickest artificial board is h, and the thickness difference of the thickest artificial board is delta h; when the artificial board is the largest in thickness, the included angle between the light ray emitting direction and the vertical direction is theta; when the width of the light source is w, calculating that the artificial board has the minimum thickness, and the included angle between the light ray emitting direction and the vertical direction is beta; tan (β) = (h×tan (θ) -w)/(h+Δh).
9. A method for automatically adjusting an angle of an auxiliary light source of a line scan camera according to an artificial plate thickness using the apparatus of any one of claims 1 to 7, comprising the steps of:
(1) The artificial board moves forwards on the artificial board inspection board production line conveyor belt and contacts the bottom of the intermediate piece;
(2) The intermediate piece is lifted up to move up along the supporting device;
(3) The auxiliary light source angle adjusting shaft contacted with the middle piece moves upwards to drive the auxiliary light source to rotate around the auxiliary light source fixed rotating shaft, so that the angle of the auxiliary light source is adjusted; according to the different thickness of the artificial board, the lifted distance of the intermediate piece is different, the angle of the auxiliary light source is also different, but the position illuminated by the auxiliary light source after the angle of the auxiliary light source is regulated is always positioned in the shooting area of the line scanning camera;
(4) The artificial board continues to move forwards until the angle of the auxiliary light source is basically stable;
(5) The artificial board enters a line scanning camera shooting area, and the line scanning camera starts shooting;
(6) The artificial board leaves the shooting area of the line scanning camera, and the line scanning camera stops shooting;
(7) The middle piece is suspended, and naturally falls to a certain height with the upper surface of the artificial board inspection board production line conveyor along the supporting device;
(8) The next artificial board comes and starts over from step (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111656417.XA CN114390172B (en) | 2021-12-31 | 2021-12-31 | Device for automatically adjusting angle of auxiliary light source of line scanning camera according to thickness of artificial board |
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| CN202111656417.XA CN114390172B (en) | 2021-12-31 | 2021-12-31 | Device for automatically adjusting angle of auxiliary light source of line scanning camera according to thickness of artificial board |
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| CN114390172B true CN114390172B (en) | 2024-01-05 |
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|---|---|---|---|---|
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| JP2008076283A (en) * | 2006-09-22 | 2008-04-03 | Olympus Corp | Method for adjusting optical axis of substrate inspection device, and optical axis adjusting sample |
| CN104296902A (en) * | 2014-11-02 | 2015-01-21 | 苏州精创光学仪器有限公司 | Novel full-automatic glass surface stress meter |
| CN208872675U (en) * | 2018-08-16 | 2019-05-17 | 常熟品智自动化科技有限公司 | Tooth hole thread detection device and system |
| CN210243520U (en) * | 2019-08-06 | 2020-04-03 | 苏州未艾视智能科技有限公司 | Self-adjusting artificial board double-sided visual detection device |
| CN212030740U (en) * | 2020-05-25 | 2020-11-27 | 佛山市顺德区德天建材有限公司 | Device for automatically checking chromatic aberration |
| CN213364601U (en) * | 2020-10-29 | 2021-06-04 | 北京微视新纪元科技有限公司 | Visible light industry camera scanning device |
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| CN114390172A (en) | 2022-04-22 |
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