CN209513647U - Detection device - Google Patents
Detection device Download PDFInfo
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- CN209513647U CN209513647U CN201920102247.2U CN201920102247U CN209513647U CN 209513647 U CN209513647 U CN 209513647U CN 201920102247 U CN201920102247 U CN 201920102247U CN 209513647 U CN209513647 U CN 209513647U
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Abstract
The utility model provides a kind of detection device and detection method, wherein detection device includes: mobile device, and the mobile device includes multiple transmission devices, and multiple transmission devices are for moving determinand along identical direction of transfer；There is gap, the transmission device surface has a loading end for placing determinand, and determinand is located at the loading end and across the gap when detection between adjacent transmission device；Light emitting device, for the gap emission detection light, the detection light to form the first signal light and second signal light through determinand；First detection device obtains the first detection information for detecting first signal light；Second detection device, for detecting second signal light the second detection information of acquisition across the gap, first detection device and the second detection device are located at the loading end two sides.The assay device structures are simple, and cost is relatively low, and can reduce erroneous detection.
Description
Technical field
The utility model relates to detection field, in particular to a kind of detection device.
Background technique
Glass material modern industry manufacture in be widely used, such as mobile phone screen, optical lens, cell piece,
Camber display screen etc..With the progress of level of processing, more and more glass products are designed to curved-surface structure, more preferable to realize
Function or reach better appearance.Since curvature portion difficulty of processing is larger, mirror surface curved surface have it is biggish be likely to occur defect,
To influence its function and appearance, it is therefore desirable to be detected to this part, to guarantee product qualification rate.
The method for mainly using optical detection to the detection of glass product surface defect is reduced to increase detection accuracy
False detection rate generally requires to carry out product multi-channel detection, including bright field detection, dark field detection and backlight detection.Bright field detection
It is the beam intensity by detecting determinand surface reflection, to realize the method detected to determinand surface.Bright field detection
Have many advantages, such as that high sensitivity, program setting are simple, there is important application in industrial detection.Dark field detection be by detection to
The scattered light intensity on object surface is surveyed, to realize the method detected to determinand surface.The defects of dark field detection is to protrusion
Better sensitivity can be achieved in detection.Backlight detection is by passing the beam through glass product, to the light beam through glass product
It is detected.Backlight detection has very high precision to the chipping of detection glass product.
However, the prior art detects product often through multichannel, and needs to the front-back two-sided detection of product, this
Result in detection device volume larger, structure is complicated, higher cost.
Summary of the invention
The utility model solves the problems, such as to be to provide a kind of detection device, can simplify the structure of detection device, reduce at
This.
To solve the above problems, the utility model provides a kind of detection device, comprising: mobile device, the mobile device
Including multiple transmission devices, multiple transmission devices are for moving determinand along identical direction of transfer；Adjacent transmission device it
Between there is gap, the transmission device surface has a loading end for placing determinand, and determinand is located at described hold when detection
Section and across the gap；Light emitting device, for the gap emission detection light, the detection light is through determinand formation the
One signal light and second signal light；First detection device obtains the first detection information for detecting first signal light；Second
Detection device, for detect across the gap second signal light obtain the second detection information, first detection device and
Second detection device is located at the loading end two sides.
Optionally, the light emitting device includes: first light source, is configured as generation and is used to form the first of the first signal light
Detect light；Second light source is configured as generating the second detection light for being used to form second signal light, the second detection light and the
The direction of propagation of one detection light is different.
Optionally, the first detection light is not identical as the wavelength of the second detection light.
Optionally, the first light source and second light source are located at the same side of the loading end；Alternatively, the first light source
Loading end two sides are located at second light source, and the first light source is located at the same of the loading end with the first detection device
Side.
Optionally, first detection device includes the first filtering assembly, for filtering out the first signal light；Described second visits
Surveying device includes the second filtering assembly, for filtering out second signal light.
Optionally, the central axis upright of the first detection light is in the loading end, the first detection device camera lens
Optical axis and loading end normal between have acute angle；Have between the central axis and loading end normal of the second detection light
There is acute angle, the optical axis of the second detection device camera lens is vertical with loading end.
Optionally, first signal light is to detect light the light beam formed is reflected or scattered through determinand；Second letter
Number light is to detect light to penetrate the light beam that determinand is formed.
Optionally, first detection device loading end search coverage and the second detection device loading end detection
Region is least partially overlapped.
Optionally, first detection device runs through to be measured along perpendicular to the direction of transfer in the search coverage of loading end
The area to be measured of object；Second detection device runs through determinand along perpendicular to the direction of transfer in the search coverage of loading end
Area to be measured.
Optionally, the transmission device includes: two rotating wheels；It is installed on the conveyer belt of rotating wheel, the rotating wheel is used
In drive conveyer belt rotation.
It optionally, further include third light source, the third light source is arc light source, and the light-emitting surface of the arc light source is arc
The cambered surface in face, the arc light source is recessed towards the direction away from loading end；The third light source is configured as emitting to determinand
Third detects light, and the third detection light reflects to form third signal light through determinand；Third detection device, it is described for detecting
Third signal light obtains third detection information.
Optionally, the detection device includes multiple gaps, and the multiple gap includes first gap and Second gap；Institute
Second signal light is stated for being received across the first gap by the second detection device；The third detection device and at least partly
Third light source is located at loading end close to the side of Second gap, and the third signal light is used for across the Second gap by third
Detection device receives.
Compared with prior art, the technical solution of the utility model has the advantage that
Technical solutions of the utility model provide detection device in, between the transmission device have gap, described second
Detection device is configurable for detecting the second signal light across the gap, and second detection device and the first detection
Device is located at loading end two sides, then the detection device can be by detecting the light beam of determinand tow sides to determinand
Multi-channel detection is carried out, so as to avoid the overturning of determinand, and then the structure of detection device can be simplified, and can accelerate
Detect speed.Meanwhile the detection light emits to the gap, first signal light and second signal light are all from the sky
Determinand at gap, therefore the detection device can realize the multi-channel detection of determinand in same gap, so as to
The integrated level for improving detection device, reduces the volume of detection device.
Further, the third light source is arc light source, and the light-emitting surface of the arc light source is cambered surface, the arc light source
Cambered surface face away from loading end direction recess.It can be to convex surface by the arc light source and third detection device
Determinand carries out bright field detection.
Further, the wavelength of the first detection light and the second detection light is different, and first detection device includes the
One filtering assembly can then remove influence of the second signal light to the first detection information；Second detection device includes second
Filtering assembly can then remove influence of first signal light to the second detection information, so as to improve detection accuracy.
Detailed description of the invention
Fig. 1 and Fig. 2 is the structural schematic diagram of one embodiment of detection device of the utility model；
Fig. 3 is the structural schematic diagram of another embodiment of detection device of the utility model；
Fig. 4 and Fig. 5 is the structural schematic diagram of the another embodiment of detection device of the utility model.
Specific embodiment
There are problems for existing detection device, such as: assay device structures are complicated, higher cost.
Its assay device structures complexity is analyzed now in conjunction with a kind of detection device, the reason of higher cost.
In order to improve the precision of detection, erroneous detection is reduced, multiple channels are often arranged to product in existing detection device setting
It is detected, since sense channel is more, causes assay device structures complicated, higher cost.In addition, double in order to be realized to product
Face detection, existing equipment have turnover device, for overturning to product, cause assay device structures complicated, detection speed
It spends slower.
To solve the technical problem, the utility model provides a kind of detection device, comprising: mobile device, the shifting
Dynamic device includes multiple transmission devices, and multiple transmission devices are for moving determinand along identical direction of transfer；Adjacent transmission
There is gap, the transmission device surface has a loading end for placing determinand, and determinand is located at when detection between device
The loading end and across the gap；Light emitting device, for the gap emission detection light, the detection light to be through determinand
Form the first signal light and second signal light；First detection device obtains the first detection letter for detecting first signal light
Breath；Second detection device, for detecting second signal light the second detection information of acquisition across the gap, first detection
Device and the second detection device are located at the loading end two sides.The assay device structures are simple, and cost is relatively low, and can
Reduce erroneous detection.
It is understandable to enable the above objects, features, and advantages of the utility model to become apparent, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.
Fig. 1 and Fig. 2 is the structural schematic diagram of one embodiment of detection device of the utility model.
Fig. 1 and Fig. 2 are please referred to, Fig. 2 is the partial enlarged view of Fig. 1, and the detection device includes: mobile device, the shifting
Dynamic device includes multiple transmission devices 100, and multiple transmission devices 100 are for moving determinand 110 along identical direction of transfer；
There is gap between adjacent transmission device 100,100 surface of transmission device has the loading end for placing determinand 110,
The mobile device is for making determinand be sent to another transmission device across the gap from a transmission device；
Light emitting device, for the gap emission detection light, the detection light to form the first signal light through determinand 110
With second signal light；
First detection device 211 obtains the first detection information for detecting first signal light；
Second detection device 212, it is described for detecting second signal light the second detection information of acquisition across the gap
Second detection device 212 and the first detection device 211 are located at the loading end two sides.
There is gap, second detection device 212 is configurable for detection across institute between the transmission device 100
The second signal light in gap is stated, and first detection device 211 and the second detection device 212 are located at loading end two sides,
Then the detection device can carry out multi-channel detection to determinand 110 by detecting the light beam of 110 tow sides of determinand, from
And it can be avoided the overturning of determinand 110, and then the structure of detection device can be simplified, and can accelerate to detect speed.Meanwhile
The detection light emits to the gap, and first signal light and second signal light are all from the determinand of the gap
110, therefore the detection device can realize the multi-channel detection of determinand 110 in same gap, so as to improve inspection
The integrated level of measurement equipment reduces the volume of detection device.
In the present embodiment, the light emitting device includes: first light source 221, is configured as generation and is used to form the first signal
First detection light of light；Second light source 222, is configured as generating the second detection light for being used to form second signal light, and described the
Two detection light are different from the first detection direction of propagation of light.
In the present embodiment, the first light source 221 and second light source 222 are located at loading end two sides, and described first
Light source 221 and the first detection device 211 are located at the same side of the loading end.
Specifically, the first light source 221 is bright field light source in the present embodiment, i.e., described first signal light is the first spy
Survey the reflected light that light is reflected to form through determinand 110；The second light source 222 is bright field light source, i.e., the described second signal light is
The reflected light that second detection light is reflected to form through determinand 110.In other embodiments, the first light source 221 and the second light
One or both of source 222 is dark field.
In the present embodiment, the detection device can realize the two-sided bright field detection to determinand 110 in same gap,
So as to reduce the volume of detection device.
In other implementations, the first light source 221 and second light source 222 are located at the same side of the loading end.Specifically
, when the first light source 221, second light source 222 and the first detection device 211 are located at the same side of loading end, described
One signal light is that the first detection light reflects through determinand 110 or scatter the light beam formed, and the second signal light is the second detection
Light penetrates the light beam that determinand 110 is formed.When the first light source 221, second light source 222 and the second detection device 212 are located at
When the same side of loading end, first signal light is that the first detection light penetrates the light beam that determinand 110 is formed, second letter
Number light is that the second detection light reflects through determinand 110 or scatter the light beam of formation.
In the present embodiment, it is described first detection light center line and perpendicular between the plane of the direction of transfer have first
Acute angle, 211 camera lens optical axis of the first detection device and is equal to perpendicular to the angle between the plane of the direction of transfer
First acute angle；Described second detects light center line and perpendicular to sharp with second between the plane of the direction of transfer
Angle angle, 212 camera lens optical axis of the second detection device and perpendicular to the angle between the plane of the direction of transfer be equal to institute
State the second acute angle.
In the present embodiment, the transmission device 100 includes: at least two rotating wheels 101 and positioned at being wound on two rotating wheels
The conveyer belt 102 in outside.
Specifically, the number of rotating wheel 101 is two in the present embodiment, the item number of the conveyer belt is two.Two biographies
Band is sent to be wound on the outside of two rotating wheels in parallel to each other.
In the present embodiment, the cross section of the conveyer belt is circle.In other embodiments, the cross section of the conveyer belt
It can also be rectangle or ellipse.The item number of the conveyer belt can be one.
The loading end is the plane where the region that conveyer belt is used to contact with determinand.It is each to transmit in the present embodiment
Region of the band for contacting with determinand is a contact line, and the loading end is where two contact line of two conveyer belts
Plane.
In the present embodiment, the material of the conveyer belt is skin.In other embodiments, the material of the conveyer belt can be
Metal.
If the depth-to-width ratio in gap is excessive between adjacent transmission device 100, it is easy to block the second detection light generation；If
Depth-to-width ratio between adjacent transmission device 100 is too small, and the excessive determinand 110 of spacing is easy from institute between adjacent transmission device 100
It states in gap and slides, if the specific rotation radius is smaller, curvature is larger, and conveyer belt 102 is easy to cause to contact with determinand 110
Uneven surface.
If second acute angle is excessive, the second detection light and second signal light are easy by transmission device 100
It blocks；If second acute angle is too small, it is unfavorable for the installation of the second detection device 212 and second light source 222.
The width of second light beam is bigger, easier to be blocked by transmission device 100.Therefore, between adjacent transmission device
Distance, 101 diameter of rotating wheel, cooperate between the second width of light beam and the second acute angle.
Specifically, the minimum spacing d between adjacent transmission device 100 is 40mm ~ 55m, such as 45mm in the present embodiment；
The diameter of rotating wheel 101 is 13mm ~ 17mm, such as 15mm；The diameter of belt is 1.5mm ~ 2.5mm, such as 2mm；Described second
Acute angle is 15 ° ~ 45 °, such as 30 °.
In other embodiments, the number of one or both of the first light source 221 and second light source 222 is more
It is a.Correspondingly, the number of one or both of second detection device 212 and first detection device 211 is multiple.Or
Person, successively alternately the first detection of transmitting light, first detection device 211 are used for successively alternately multiple first light sources 221
Detection difference first detects the first signal light that light generates；Successively alternately transmitting second detects light, institute to multiple second light sources 222
The second detection device 212 is stated for successively alternately detection difference second to detect the second signal light that light generates.
In the present embodiment, the first detection light is not identical as the wavelength of the second detection light.
In the present embodiment, first detection device 211 includes the first filtering assembly, for filtering out the first signal light；Institute
Stating the second detection device 212 includes the second filtering assembly, for filtering out second signal light.
The wavelength of the first detection light and the second detection light is different, and first detection device 211 includes the first filter
Optical assembly can then remove influence of the second signal light to the first detection information；Second detection device 212 includes the second filter
Optical assembly can then remove influence of first signal light to the second detection information, so as to improve detection accuracy.
First filtering assembly includes the combination of one or both of optical filter or grating.It is described to state the second filtering assembly
It is combined including one or both of optical filter or grating.
In the present embodiment, first detection device 211 is on the search coverage edge of loading end perpendicular to the direction of transfer
Through the area to be measured of determinand 110；Second detection device 212 is on the search coverage edge of loading end perpendicular to the sender
To the area to be measured for running through determinand 110.Therefore, when the mobile device drive determinand 110 behind the gap, the inspection
Measurement equipment can detect entire area to be measured.
In the present embodiment, first detection device 211 is being held in the search coverage of loading end with the second detection device 212
The search coverage of section is least partially overlapped.Specifically, described the with detection device 211 loading end search coverage and second
Detection device 212 is completely overlapped in the search coverage of loading end.
First detection device 211 refers to the first detection device 211 to determinand 110 in the search coverage of loading end
Shoot an image, captured 110 surface region of determinand；Search coverage of second detection device 212 in loading end
Refer to that the second detection device 212 shoots an image, captured 110 surface region of determinand to determinand 110.
In the present embodiment, first detection device 211 is line detector, i.e., the search coverage of described first detection device
To be linear, 211 search coverage of the first detection device extends perpendicularly to the direction of transfer.In other embodiments
In, first detection device 211 is surface detector, i.e., the search coverage of described first detection device is a face.
In the present embodiment, second detection device 212 is line detector, i.e., the detection of described second detection device 212
Region be it is linear, 212 search coverage of the second detection device extends perpendicularly to the direction of transfer.In other implementations
In example, second detection device 212 is surface detector, i.e., the search coverage of described second detection device is a face.
First detection device 211 loading end search coverage and the second detection device 212 loading end detection
Region is least partially overlapped, can reduce equipment volume.
Fig. 3 is the structural schematic diagram of another embodiment of the utility model detection device.
Referring to FIG. 3, the present embodiment does not repeat herein with the something in common of Fig. 1 and embodiment illustrated in fig. 2, difference
Place includes: that first signal light is to detect light the light beam formed is reflected or scattered through determinand；The second signal light is to visit
It surveys light and penetrates the light beam that determinand is formed.
In the present embodiment, the light emitting device 220 only includes a light source, detection light arrival determinand surface it
Afterwards, it is partially reflected or is scattered by determinand and form the first signal light, partially form second signal light through the determinand.
Detection device described in the present embodiment can be realized in same gap to determinand light field or dark field detection, and energy
It is enough that backlight detection is carried out to determinand 110.
Fig. 4 and Fig. 5 is the structural schematic diagram of the another embodiment of detection device of the utility model.
Fig. 4 and Fig. 5 are please referred to, Fig. 5 is the side view of part in the x-direction in the region Fig. 41.
This will not be repeated here for the something in common of the present embodiment and embodiment illustrated in fig. 1, and difference includes:
In the present embodiment, the first light source 141 is dark field, and first signal light is the first detection light through to be measured
The scattering light that the scattering of object 110 is formed.
In the present embodiment, the number of the first light source 141 and second light source 142 is one.In other embodiments, institute
When to state first light source 141 be dark field, the number of the first light source 141 can be it is multiple, multiple first light sources 141 emit
The first detection light the direction of propagation it is different.When the second light source 142 is dark field, the number of the second light source 142
It can be multiple, the direction of propagation difference for the second detection light that multiple second light sources 142 emit.
In the present embodiment, the direction of propagation of the first detection light is perpendicular to the loading end；First detection device
There is acute angle between the optical axis of 113 camera lens and the first detection optical propagation direction.The direction of propagation of the second detection light
There is acute angle between loading end normal, the camera lens optical axis of second detection device 114 is vertical with loading end.
In the present embodiment, the detection device includes multiple gaps, and the multiple gap includes first gap, Second gap
With third gap.It is received specifically, the second signal light passes through the first gap by the second detection device.
The detection device further include:
First stroboscopic light source 121 is configured as emitting the 4th detection light to the area to be measured of determinand 110, and the described 4th visits
It surveys light and forms fourth signal light through area to be measured；
Second stroboscopic light source 122, be configured as to determinand 110 emit the 5th detection light, it is described 5th detection light pass through to
It surveys object and forms the 5th signal light, first stroboscopic light source 121 and the second stroboscopic light source 122 are configured as repeatedly alternately to institute
State the 4th detection light of the transmitting of determinand 110 and the 5th detection light.
4th detection device 111 is configured as repeatedly alternately detecting the fourth signal light and the 5th signal light, obtains
4th detection information.
The detection device includes the first stroboscopic light source 121 and the second stroboscopic light source 122.Due to first stroboscopic light source
121 and second stroboscopic light source 122 be configured as repeatedly alternately to the determinand 110 transmitting the 4th detection light and the 5th detection
Light, the 4th detection device 111 are configured as repeatedly alternately detecting the fourth signal light and the 5th signal light, then being capable of basis
Detection time separates the 4th detection device 111 according to the first detection information that fourth signal light and the 5th signal light obtain, and obtains
Take first detection information in different channels.Since the time does not have overlapping, so as to improve detection accuracy.Meanwhile the inspection
Measurement equipment can obtain the first detection information of fourth signal light and the 5th signal light by the 4th detection device 111, from
And the structure of detection device can be simplified, integrated level is improved, and can reduce cost.
In the present embodiment, the detection device includes the loading end for placing determinand 110.
The determinand 110 includes opposite the first face and the second face, and second face with the mobile device for connecing
Touching.
In the present embodiment, first stroboscopic light source 121 is bright field light source, and the 4th detection light is anti-through determinand 110
Fourth signal light is formed after penetrating；Second stroboscopic light source 122 is backlight, i.e., the described 5th detection light passes through the determinand
110, it forms the 5th signal light and is received by the 4th detection device 111.First stroboscopic light source 121 and the 4th detection device 111
Positioned at the same side of the loading end.Specifically, first stroboscopic light source 121 is located at described hold with the 4th detection device 111
Side of the section far from mobile device；Second stroboscopic light source 122 and the 4th detection device 111 are located at the loading end
Two sides, i.e., described second stroboscopic light source 122 are located at the loading end close to the side of mobile device.
In the present embodiment, first stroboscopic light source 121 and the second stroboscopic light source 122 alternately shine, the 4th detection
Device 111 only alternately detects the fourth signal light and the 5th signal light.
In the present embodiment, the wavelength of the 4th detection light and the 5th detection light is identical.The 4th detection light and the 5th
The wavelength for detecting light is identical, can simplify the adjusting difficulty of the 4th detection device 111.In other embodiments, it the described 4th visits
The wavelength for surveying light and the 5th detection light can not be identical.
4th detection device 111 is line detector, i.e., described 4th detection device 111 is on 110 surface of determinand
Search coverage is linear.Specifically, the search coverage shoots an image institute for the 4th detection device 111 in the present embodiment
110 surface region of determinand of shooting.The detecting area of 4th detection device 111 runs through institute along perpendicular to the direction of transfer
State the area to be measured of determinand 110.
First stroboscopic light source 121 and the second stroboscopic light source 122 are linear light source, first stroboscopic light source 121 and the
Two stroboscopic light sources 122 extend perpendicularly to direction of transfer 110 surface of determinand formation hot spot, and hot spot is along direction of transfer
Through the area to be measured of the determinand 110.In other embodiments, first stroboscopic light source and the second stroboscopic light source can be
Area source, the 4th detection device can be surface detector.
First stroboscopic light source 121 and the second stroboscopic light source 122 are linear light source, i.e., described first stroboscopic light source, 121 He
The length of the light-emitting surface of second stroboscopic light source 122 is much larger than width.
In the present embodiment, the light-emitting surface of first stroboscopic light source 121 is plane.The processing cost of planar light source is low, energy
Enough reduce the cost of detection device.In other embodiments, the light-emitting surface of first stroboscopic light source can be curved surface.
Specifically, the determinand 110 is mobile phone shell.In other embodiments, the determinand can be flat glass.
The detection device further include: processing system, for according to the 4th of 111 different moments of the 4th detection device the detection
Information extracts the 4th detection of fourth signal light and the 5th signal light respectively, forms the first image and the second image；Control dress
It sets, for sending the first stroboscopic trigger signal to the first stroboscopic light source 121 and the 4th detection device 111, to the second stroboscopic light source
122 and the 4th detection device 111 send the second stroboscopic trigger signal.
The processing system is used to obtain the of fourth signal light according to the triggered time of the first stroboscopic trigger signal
Four detection informations form the first image, and obtain the of the 5th signal light according to the triggered time of the 5th stroboscopic trigger signal
Four detection informations form the second image.
Triggered time refers to the time for making light source emission detection light or detection device being made to obtain the 4th detection information.
Minimum range between adjacent transmission device 100 and the contact point of determinand 110 is less than area to be measured along direction of transfer
The half of size.
In the present embodiment, the transmission device 100 has one or more gaps, and one or more of gaps include the
Three gaps, second stroboscopic light source 122 are located at loading end close to the side of the transmission device；The second detection light is used for
The determinand 110 is reached across the third gap.
In the present embodiment, second stroboscopic light source 122 is backlight, and is located at the loading end close to mobile device
Side.The 5th detection light passes through the third gap, exposes to 110 second face of determinand, and penetrate the determinand 110
The 5th signal light is formed, is received by the 4th detection device 111.
In this implementation, the detection device further include: third light source 131, the third light source 131 are arc light source, institute
The light-emitting surface for stating arc light source is cambered surface, and the cambered surface of the arc light source is recessed towards the direction away from loading end.
The third light source 131 is configured as emitting third detection light to determinand 110, and the third detection light is through to be measured
Object 110 reflects to form third signal light, and the third light source 131 and the first stroboscopic light source 121 are respectively used to irradiation determinand 110
Two opposite surfaces；Third detection device 112 obtains the second detection information for detecting the third signal light.
Specifically, in the present embodiment, the determinand 110 includes opposite the first face and the second face, first face and
Second mask is cambered surface；First face is concave surface, i.e., described first is recessed facing towards the second face；Second face is convex surface,
I.e. described second faces the direction protrusion away from the first face.
In the present embodiment, the light-emitting surface of first stroboscopic light source 121 is plane, then first stroboscopic light source 121 is used
In irradiating first face, to be detected to first face.
The third light source 131 is configured as providing detection to the examined object at least one curved detection surface
The normal of light, the curved detection surface at least two positions on bending direction is not parallel；
Third detection device 112 is continuous along the bending direction in the examined object for acquiring the detection light
The reflected light on surface.
In the present embodiment, first stroboscopic light source 121 and third light source 131 be can be realized to bending determinand 110
Two-sided detection.
The third light source 131 is arc light source, for irradiating convex surface, to detect to convex surface.Due to described
Three light sources 131 are arc light source, and the direction of propagation for the third detection light that the arc light source emits to convex surface is different, are easily guaranteed that
The third signal light that third detection light is formed after convex refractive can be received by third detection device 112, so as to right
It is detected on convex surface.
There is third acute angle folder between the optical axis of the camera lens of the third detection device 112 and the plane of vertical direction of transfer
Angle.The 4th detection light that the third light source 131 emits is with the plane of symmetry, the plane of symmetry and perpendicular to the direction of transfer
There is the 4th acute angle, the 4th acute angle is equal to third acute angle between plane.
In this implementation, the multiple gap further includes Second gap.
In the present embodiment, at least partly third light source 131 and the third detection device 112 are located at loading end close to mobile
The side of device.The third detection light passes through the Second gap and is incident to 110 surface of determinand.
If the third acute angle is excessive, it is easily moved device and blocks；If the third acute angle is too small,
It is unfavorable for the installation of third detection device 112 and third light source 131.Specifically, the third acute angle is 10 ° ~ 20 °.
In the present embodiment, the light-emitting surface of the third light source 131 is continuous curved surface.Among the i.e. described third light source 131
Without opening, then the third light source 131 can provide intensity more uniform 4th detection light for determinand 110, so as to
Enough improve detection accuracy.
The detection device of the present embodiment can be realized the light field and dark field detection and backlight inspection two-sided to determinand 110
It surveys, so as to carry out multi-channel detection to determinand 110, and then improves detection accuracy, reduce the missing inspection of defect.
Although the utility model discloses as above, the utility model is not limited to this.Anyone skilled in the art,
It does not depart from the spirit and scope of the utility model, can make various changes or modifications, therefore the protection scope of the utility model
It should be defined by the scope defined by the claims..
Claims (12)
1. a kind of detection device characterized by comprising
Mobile device, the mobile device include multiple transmission devices, and multiple transmission devices are for making determinand along identical biography
Send direction mobile；There is gap, the transmission device surface has the carrying for placing determinand between adjacent transmission device
Face, the mobile device is for making determinand be sent to another transmission device across the gap from a transmission device；
Light emitting device, for the gap emission detection light, the detection light to form the first signal light and second through determinand
Signal light；
First detection device obtains the first detection information for detecting first signal light；
Second detection device, for detecting second signal light the second detection information of acquisition across the gap, described first is visited
It surveys device and the second detection device is located at the loading end two sides.
2. detection device as described in claim 1, which is characterized in that the light emitting device includes: first light source, is configured as
Generate the first detection light for being used to form the first signal light；Second light source is configured as generation and is used to form second signal light
Second detection light, the second detection light are different from the first detection direction of propagation of light.
3. detection device as claimed in claim 2, which is characterized in that the wavelength of the first detection light and the second detection light is not
It is identical.
4. detection device as claimed in claim 2, which is characterized in that the first light source and second light source are located at the carrying
The same side in face；Alternatively, the first light source and second light source are located at loading end two sides, and the first light source and first
Detection device is located at the same side of the loading end.
5. detection device as claimed in claim 2, which is characterized in that first detection device includes the first filtering assembly,
For filtering out the first signal light；Second detection device includes the second filtering assembly, for filtering out second signal light.
6. detection device as claimed in claim 2, which is characterized in that the central axis upright of the first detection light is in described
Loading end has acute angle between the optical axis and loading end normal of the first detection device camera lens；The second detection light
Central axis and loading end normal between there is acute angle, the optical axis of the second detection device camera lens and loading end hang down
Directly.
7. detection device as described in claim 1, which is characterized in that first signal light is that detection light is reflected through determinand
Or the light beam that scattering is formed；The second signal light is to detect light to penetrate the light beam that determinand is formed.
8. detection device as described in claim 1, which is characterized in that search coverage of first detection device in loading end
It is least partially overlapped in the search coverage of loading end with the second detection device.
9. detection device as described in claim 1, which is characterized in that search coverage of first detection device in loading end
Along the area to be measured for running through determinand perpendicular to the direction of transfer；Second detection device is hung down on the search coverage edge of loading end
Directly run through the area to be measured of determinand in the direction of transfer.
10. detection device as described in claim 1, which is characterized in that the transmission device includes: two rotating wheels；Installation
In the conveyer belt of rotating wheel, the rotating wheel is for driving conveyer belt to rotate.
11. detection device as described in claim 1, which is characterized in that further include third light source, the third light source is arc
Light source, the light-emitting surface of the arc light source are cambered surface, and the cambered surface of the arc light source is recessed towards the direction away from loading end；
The third light source is configured as emitting third detection light to determinand, and the third detection light is reflected to form through determinand
Third signal light；Third detection device obtains third detection information for detecting the third signal light.
12. detection device as claimed in claim 11, which is characterized in that the detection device includes multiple gaps, described more
A gap includes first gap and Second gap；The second signal light is used for across the first gap by the second detection device
It receives；
The third detection device and at least partly third light source are located at loading end close to the side of Second gap, the third letter
Number light across the Second gap by third detection device for being received.
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| CN201920102247.2U CN209513647U (en) | 2019-01-18 | 2019-01-18 | Detection device |
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| CN201920102247.2U CN209513647U (en) | 2019-01-18 | 2019-01-18 | Detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988550A (en) * | 2019-12-17 | 2020-04-10 | 合肥诺宸智能装备有限公司 | Automatic test platform of product signal |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988550A (en) * | 2019-12-17 | 2020-04-10 | 合肥诺宸智能装备有限公司 | Automatic test platform of product signal |
| CN110988550B (en) * | 2019-12-17 | 2022-04-01 | 合肥诺宸智能装备有限公司 | Automatic test platform of product signal |
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Address after: 518110 101 201 301, No.2, Shanghenglang fourth industrial zone, Tongsheng community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zhongke feice Technology Co.,Ltd. Address before: 518110 101 201 301, No.2, Shanghenglang fourth industrial zone, Tongsheng community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Zhongke Flying Test Technology Co.,Ltd. |