CN211014053U - High-precision automatic object surface flaw image capturing device - Google Patents
High-precision automatic object surface flaw image capturing device Download PDFInfo
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- CN211014053U CN211014053U CN201921455202.XU CN201921455202U CN211014053U CN 211014053 U CN211014053 U CN 211014053U CN 201921455202 U CN201921455202 U CN 201921455202U CN 211014053 U CN211014053 U CN 211014053U
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Abstract
A high-precision automatic object surface flaw image capturing device comprises a base, a detected object bearing seat, a plurality of image capturing devices, a plurality of optical fiber light source variable wavelength modules and a time-sharing control module, wherein the base is provided with a CNC rotating unit and an XY axis plane moving unit, the detected object bearing seat is arranged above the base, the image capturing devices are erected above the base and around the detected object bearing seat, and the optical fiber light source variable wavelength modules are arranged behind the upper surface of the base and extend to be provided with point optical fiber light sources. The utility model discloses make the relevance ratio promote to make and detect the precision and increase, simultaneously because the timesharing function also can stagger get for instance the reflection of light interference that the time point avoided many light sources to cause, consequently the formation of image quality is also corresponding and promote to better detection function.
Description
Technical Field
The utility model relates to an automatic object surface flaw image acquisition device of high accuracy can apply to the device that needs image acquisition relatively such as object surface flaw, indicates especially that a structure is simple and easy but effectual and have practicality and utilize complete surface flaw image acquisition device, borrows by this timesharing control module group to trigger respectively the control point optical fiber lamp source and polish and trigger the design that the camera got for instance at different times, consequently the better detection function of formation of image quality.
Background
The conventional image capturing device for object surface defects generally comprises one or more sets of relatively uniform light sources, such as a C-shaped light for curved surface, a coaxial light for planar surface, or a uniform backlight light source, and the image capturing device captures images and performs detection for many years.
However, when the uniform light source is disposed at the position where the camera frame reflects the plane light, the light received by the camera is reduced due to the defect, but when the size of the defect is small, the brightness of the whole screen is high, and the defect cannot be clearly displayed, so that the uniform light source cannot make the small-sized defect and the background have obvious brightness change in imaging, and the defect image capturing device formed by the uniform light source design has the disadvantage of poor effect on the small-sized defect, and causes the basic structure such as poor efficiency.
Moreover, the object surface inspection has different defect definitions due to industry differences, taking the mobile phone frame as an example, the common defects in the industry include defects of line type, strip type, dot type, polishing deficiency type, scratch and some defects commonly found in the frame and body seam area (also called as a thin film area where the IMF area Insert film is embedded between the frame and the body), the detection device with a uniform light source and a single camera is conventionally used in the past, which can detect the obvious dot type defect and the serious scratch exactly, but can detect the accuracy of about 0.1mm only for the line and polishing deficiency type, and cannot detect the defects in the IMF area at all.
Therefore, there is a need to provide specific improvements and further provide more technical options in the industry, which are the problems to be solved at present.
SUMMERY OF THE UTILITY MODEL
The main technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art, and to provide a high-precision automatic object surface flaw image capturing device, which is mainly aimed at effectively avoiding the basic defects of the prior detecting device with a uniform light source and a single camera, such as insufficient detection precision of the frame and the machine body seam area, and having a deep practicability; the defect detection device has the advantages that most of light rays cannot be sensed by the image capturing device after being reflected, only the reflected light rays of the defect part are left, so that the image of the defect in the image capturing device is very obvious, the detection rate is further improved, and the detection precision is improved; it not only has simple structure and better effect, but also meets the requirement of the user.
The utility model provides a technical scheme that its technical problem adopted is:
a high-precision automatic object surface flaw image capturing device is suitable for devices which need image capturing such as object surface flaws and the like, and at least comprises a base, wherein the base is provided with a CNC rotating unit and an XY axis plane moving unit; the object detection bearing seat is arranged between the front end above the base and the central area; a plurality of image capturing devices which are erected above the base and around the detection object bearing seat; a plurality of optical fiber light source variable wavelength modules which are arranged at the rear end above the base and extend to a point optical fiber light source for communication; the time-sharing control module is in communication with the image capturing device and the plurality of point optical fiber light sources and can respectively make a trigger control command.
The detection object bearing seat can be embedded in the detection object frame or supported by the bottom, so that the detection object is positioned above the base.
The image capturing device is composed of a lens, a video camera or a camera.
The image capturing device captures a plurality of continuous frames of images according to the optical fiber light flashing frequency generated by the time-sharing control module.
Wherein an image capturing device is aligned with the middle portion of the image capturing point.
The remaining image capturing devices are focused on the upper part and the lower part of the image capturing point respectively from top to bottom and from bottom to top.
The optical fiber light sources irradiated by the point optical fiber light source are approximately arranged on the same plane and are evenly distributed up and down relative to the frame of the image taking point, and the optical fiber light source irradiated by the single point optical fiber light source is irradiated from the side upper part relative to the film seam area of the image taking point embedded between the frame and the machine body, so that the optical fiber light sources irradiated by the point optical fiber light source can form different light intensity and angle distribution on the surface of an object to be measured according to the image taking of the point to enable the defect area and the background to have more obvious light and shade change during imaging.
The light source generated by the point optical fiber light source can generate a point light source, and the optical fiber light source variable wavelength module can enable the light source generated by the point optical fiber light source to be changed into different wavelength colors, so that the point optical fiber light source has higher adaptability to the surfaces and flaws of different types and colors.
Therefore, the utility model relates to a high-precision automatic object surface flaw image capturing device, which utilizes the time-sharing control module to respectively trigger the control point fiber lamp source to polish at different times, and is matched with the time-sharing control module to respectively trigger the image capturing device to capture images at different times, when the device is used after combination, the base has the characteristics of a CNC rotating unit and an XY moving unit, which not only can lead the detection object bearing to move and rotate, but also can lead the frame of the detection object to move at a constant speed, so that the whole circle of the frame can be captured by the image capturing point, so as to capture images into continuous images, and the time-sharing control module respectively triggers the control point fiber lamp source to polish at different times and the image capturing device to capture images at different times, thereby having higher brightness contrast ratio of flaws and backgrounds when capturing images, and improving the detection rate, and make and detect the precision and increase, simultaneously because the timesharing function also can stagger get for instance the reflection of light interference that the time point avoided many light sources to cause, consequently the formation of image quality is also corresponding and promote to better detection function, and become the utility model discloses an effective intention.
The utility model has the advantages that the utility model aims to effectively avoid the defects of the prior detection device with the uniform light source and the single camera, which has the practicability for the detection precision of the frame and the joint area of the machine body is not enough; the defect detection device has the advantages that most of light rays cannot be sensed by the image capturing device after being reflected, only the reflected light rays of the defect part are left, so that the image of the defect in the image capturing device is very obvious, the detection rate is further improved, and the detection precision is improved; it not only has simple structure and better effect, but also meets the requirement of the user.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a block diagram of the circuit of the present invention.
Fig. 3 is a perspective view of the embodiment of the present invention.
Fig. 4 is a top view structural diagram of an illumination mode of a partial structural embodiment of the present invention.
Fig. 5 is a side view structural diagram of an irradiation pattern according to a part of the structural embodiment of the present invention.
The reference numbers in the figures illustrate:
CNC rotary unit 10
XY-axis plane moving unit 11
Test object bearing seat 2
A plurality of image capturing devices 3
Several fiber optic source variable wavelength modules 4
Point optical fiber lamp source 40
Three fiber optic light sources 400
A single fiber optic light source 401
Time-sharing control module 5
Detailed Description
The following description of the embodiments of the present invention with reference to specific embodiments will be made to show, by way of illustration, other advantages and features of the present invention. The present invention can be implemented or applied by other different embodiments, and various details in the present specification can be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, with reference to the remaining drawings, the present invention provides a high-precision automatic object surface flaw image capturing device, comprising:
a base 1 having a CNC rotation unit 10 and an XY-axis plane movement unit 11;
a detecting object bearing seat 2 arranged between the front end and the central area above the base 1, wherein the detecting object bearing seat 2 can be embedded in the inner part of the frame of the detecting object 6 or supported by the bottom, so that the detecting object 6 is positioned above the base 1;
a plurality of image capturing devices 3, wherein the plurality of image capturing devices 3 are erected above the base 1 and around the detection object bearing 2 to drive one of the image capturing devices 3 to be aligned with the middle part of the image taking point, the rest image capturing devices 3 are respectively aligned with the upper part and the lower part of the image taking point from top to bottom and from bottom to top in focal distance, the image capturing devices 3 are all composed of a lens, a camera or a camera, and can capture a plurality of continuous images of frames according to the optical fiber light flash frequency generated by the time-sharing control module 5;
a plurality of optical fiber light source variable wavelength modules 4, wherein the optical fiber light source variable wavelength modules 4 are arranged at the upper rear end of the base 1 and extend point optical fiber light sources 40 which are connected to form different light intensity and angle distribution on the surface of an object to be detected according to the configuration of the image capturing points so that the defect area and the background have more obvious light and shade changes during imaging; the optical fiber light sources irradiated by the point optical fiber light source 40, wherein at least three optical fiber light sources 400 are approximately arranged on the same plane and are evenly distributed up and down on a frame facing an image taking point of the detected object 6, and the optical fiber light source 401 irradiated by the single point optical fiber light source irradiates from the side upper part on a film seam area embedded between the frame of the detected object 6 and the machine body facing the image taking point, so that the optical fiber light sources irradiated by the point optical fiber light source can form different light intensity and angle distribution on the surface of the detected object 6 according to the configuration of the image taking point, and a defect area and a background have more obvious light and shade change during imaging; in addition, the light source generated by the point optical fiber light source 40 can generate a point light source, and the optical fiber light source variable wavelength module 4 can control the light source generated by the point optical fiber light source 40 to have different wavelength colors, so that the point optical fiber light source has higher adaptability to different types and colors of surfaces and defects.
The time-sharing control module 5 is connected with the image capturing device 3 and a plurality of point optical fiber light sources 40, and can respectively make a trigger control command.
Please refer to fig. 3, 4 and 5 for a front view; the utility model relates to a high-precision automatic object surface flaw image capturing device, which mainly triggers the control point optical fiber lamp source 40 to perform light-up at different times by the time-sharing control module 5, and the time-sharing control module 5 is provided to simultaneously trigger the image capturing device 3 to capture images at different times, so as to provide a simple structure and better effect, and further meets the requirement of the user, fully achieves the purposes that most of the reflected light rays cannot be sensed by the image capturing device, only the reflected light rays of the flaw part are left, so that the image of the flaw in the image capturing device is very obvious, thereby improving the detection rate and improving the detection precision, and because the utility model discloses have a plurality of cameras and collocation a plurality of fiber optic sources, really have and to make the flaw in each region all present the complete perfect effect of purpose function.
By means of the above-mentioned combination of the components, when the high-precision automatic object surface defect image capturing device is used for capturing object surface defect images, the detecting object bearing 2 can be displaced and rotated according to the characteristics of the base tool CNC rotating unit 10 and XY moving unit 11, the frame with the guiding detecting object 6 can move at a constant speed, so that the whole circle of the frame can be captured by the image capturing point, so as to capture the images into a continuous graph, and the time-sharing control module 5 can respectively trigger the control point optical fiber lamp source 40 to illuminate at different times and the image capturing device 3 to capture the images at different times, so that the defect and the background can have higher bright-dark contrast when capturing the images, the detection rate is improved, the detection precision is increased, and the image-capturing time point can be staggered to avoid the reflection interference caused by multiple light sources, therefore, the imaging quality is correspondingly improved to a better detection function, thereby becoming the effective originality of the utility model.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.
Claims (5)
1. A high-precision automatic object surface flaw image capturing device is characterized by comprising:
a base having a CNC rotation unit and an XY axis plane moving unit;
the detection object bearing seat is arranged between the front end above the base and the central area;
a plurality of image capturing devices, wherein the image capturing devices are erected above the base and around the detection object bearing seat to drive one image capturing device to be aligned with the middle part of the image taking point, and the rest image capturing devices are respectively aligned with the upper part and the lower part of the image taking point from top to bottom and from bottom to top in focal distance;
the optical fiber light source variable wavelength modules are arranged at the rear end above the base and extend to point optical fiber light sources which are connected with each other and are configured according to the configuration of the image-taking points to form different light intensity and angle distribution on the surface of an object to be detected so that a defect area and a background have more obvious light and shade changes during imaging;
the time-sharing control module is connected with the image capturing device and a plurality of point optical fiber lamp sources and can respectively make a trigger control instruction.
2. The apparatus of claim 1, wherein the object holder is embedded in the frame of the object or supported by the bottom of the frame of the object, so that the object is positioned above the base.
3. The apparatus of claim 1, wherein the image capturing devices are all composed of a lens, a video camera or a camera.
4. The apparatus of claim 1, wherein the image capturing device captures a plurality of continuous images of the frame according to a flashing frequency of a fiber lamp generated by the time-sharing control module; the optical fiber light sources irradiated by the point optical fiber light source are approximately arranged on the same plane and are evenly distributed up and down on a frame facing an image taking point of an object to be measured, and the optical fiber light source irradiated by the single point optical fiber light source is irradiated from the side upper part to the image taking point of the object to be measured and embedded in a film seam area between the frame and a machine body, so that the optical fiber light sources irradiated by the point optical fiber light source can form different light intensity and angle distribution on the surface of the object to be measured according to the configuration of the image taking point, and a defect area and a background have more obvious light and shade change during imaging.
5. The apparatus of claim 1, wherein the point light source generates a point light source, and the fiber-optic variable wavelength module is capable of controlling the point light source to have different wavelength colors, so that the apparatus is more adaptable to different types and colors of surface and surface defects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455202.XU CN211014053U (en) | 2019-09-03 | 2019-09-03 | High-precision automatic object surface flaw image capturing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921455202.XU CN211014053U (en) | 2019-09-03 | 2019-09-03 | High-precision automatic object surface flaw image capturing device |
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| CN211014053U true CN211014053U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189109A (en) * | 2021-01-15 | 2021-07-30 | 深圳锦绣创视科技有限公司 | Flaw judgment system and flaw judgment method based on artificial intelligence |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189109A (en) * | 2021-01-15 | 2021-07-30 | 深圳锦绣创视科技有限公司 | Flaw judgment system and flaw judgment method based on artificial intelligence |
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