Transparent part stress detection system
By using polarizers and imaging devices in a transparent parts stress detection system, the stress and deformation of transparent parts can be automatically analyzed, solving the problem of poor consistency in manual inspection and achieving high-precision stress detection of transparent parts.
Patent Information
- Application Number
- CN202423127849.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the current technology, stress detection of transparent lenses relies on manual inspection, which has problems of poor consistency and visual fatigue, resulting in inaccurate stress determination.
By employing a first beam splitting structure and a second beam splitting structure, combined with polarization detection and imaging devices, the stress and deformation of transparent parts are automatically analyzed by detecting the colored stripes generated by the transparent parts in an anisotropic medium. The grayscale distribution of the part image is converted using polarizers and imaging devices to achieve high-precision stress detection.
It enables high-precision automatic detection of stress in transparent parts, reducing the deviation of manual inspection and improving the accuracy and consistency of inspection.
Smart Images
Figure CN223756189U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stress detection technical field especially relates to a transparent spare stress detection system. BACKGROUND
[0002] Transparent lens is widely used in remote controller and computer and so on product display screen, in the process of assembling display screen, need to detect three -dimensional size and defect of transparent lens, if the deformation amplitude of transparent lens is too big, then unqualified, after detecting that transparent lens exists defect, manual repair is carried out to different defects such as black point, scratch, bubble, deformation and air line.
[0003] Three -dimensional size and defect of transparent lens are detected by artificial, and artificial inspection has poor consistency, and long -time repeated work is easy to produce visual fatigue, causes quality accident, according to the defect type of transparent lens, the stress received by the transparent lens can be judged, and in the case where the defect type detected by artificial exists deviation, the stress received by the transparent lens will also appear deviation.
[0004] Therefore, a transparent spare stress detection system that can automatically detect the stress received by the transparent lens and has high accuracy is needed. UTILITY MODEL CONTENT
[0005] To overcome the problems in the related art, the utility model aims at providing a transparent spare stress detection system, which can automatically detect the stress received by the transparent lens and has high accuracy.
[0006] A transparent spare stress detection system, comprising a first light splitting structure and a second light splitting structure, a polarization detection site is arranged between the first light splitting structure and the second light splitting structure, and the polarization detection site is used for placing a transparent part; a light source is arranged on the side of the first light splitting structure away from the second light splitting structure, and an imaging device is arranged on the side of the second light splitting structure away from the first light splitting structure; the imaging device is used for converting visible light filtered by the second light splitting structure into a part image and detecting the stress received by the transparent part according to the part image.
[0007] The transparent part is placed in a polarization detection position, and a light source is turned on, the light source emits visible light to the first light splitting structure, the visible light passes through the first light splitting structure, the transparent part and the second light splitting structure in sequence, the visible light filtered by the second light splitting structure is irradiated on the imaging device, the imaging device converts the received visible light into a part image, and stress received by the transparent part is detected according to the part image. The transparent part, such as a transparent lens, has anisotropy, and the optical axis direction coincides with the stress direction. When light propagates in an anisotropic medium, birefringence occurs, the transparent part is placed between the first light splitting structure and the second light splitting structure, the visible light passing through the first light splitting structure is reflected and refracted on the surfaces on both sides of the transparent part, so that color fringes appear on the transparent part. The greater the stress received by the transparent part, the greater the deformation, and the stronger the anisotropy of the transparent part, and the more dense the color fringes formed. The part image converted by the imaging device is a gray-scale image, and the defect type of the transparent part can be judged according to the gray value distribution of the part image, and the stress received by the transparent part can be automatically detected according to the gray value distribution of the part image and the defect type, and the accuracy is high.
[0008] In the preferable technical scheme of the utility model, the first light splitting structure is a first polaroid, and the second light splitting structure is a second polaroid.
[0009] The first polaroid and the second polaroid make light of a specific vibration frequency and vibration direction pass through, the first polaroid and the second polaroid are of the same type, and the first polaroid is of a linear polaroid or a circular polaroid.
[0010] In the preferable technical scheme of the utility model, the light source is a white light source.
[0011] White light is composite light, containing light of multiple colors, and the transparent lens receives the white light passing through the first polaroid, light of different colors has different refractive indexes, so that color fringes appear on the transparent lens.
[0012] In the preferable technical scheme of the utility model, the transparent part stress detection system further comprises a deformation detection device, the deformation detection device is located below the imaging device, and the deformation detection device is used for detecting deformation of the transparent part.
[0013] In the preferable technical scheme of the utility model, the deformation detection device comprises an X-ray source, a deformation detection position is arranged close to the X-ray source, and the deformation detection position is used for detecting deformation of the transparent part.
[0014] In the preferable technical scheme of the utility model, the deformation detection position is provided with a fixed mold, the fixed mold is used for placing the transparent part, the fixed mold is placed in the light box, a strip lamp is arranged in the light box, the strip lamp is used for emitting visible light to the fixed mold, and the transparent part on the fixed mold is positioned.
[0015] In the preferable technical scheme of the utility model, the imaging device comprises a photoelectric receiving part, a photoelectric surface is arranged on one side of the second light splitting structure, and the photoelectric surface is used for receiving visible light filtered through the second light splitting structure.
[0016] In the preferable technical scheme of the utility model, one side of the photoelectric receiving part away from the photoelectric surface is provided with a CCD camera, the CCD camera is used for shooting the photoelectric receiving part, and the part image is obtained.
[0017] In the preferable technical scheme of the utility model, the imaging device further comprises a PLC processor, the PLC processor is electrically connected with the CCD camera, the PLC processor is used for processing and analyzing the part image shot by the CCD camera, and whether the transparent part has defects is judged.
[0018] In the preferable technical scheme of the utility model, the imaging device further comprises a light shielding device, the light shielding device is located between the photoelectric surface and the second polaroid, so as to form a channel for the light ray passing through the second polaroid to propagate.
[0019] The utility model has the advantages of:
[0020] The utility model provides a kind of transparent part stress detection system, including first light splitting structure and second light splitting structure, first light splitting structure and second light splitting structure between being provided with polarization detection site, polarization detection site is used to place transparent part;First light splitting structure is provided with light source on the side away from second light splitting structure, and second light splitting structure is provided with imaging device on the side away from first light splitting structure;Imaging device is used to convert the visible light filtered by second light splitting structure into part image, and according to part image detection stress received by transparent part.Puts transparent part in polarization detection site, opens light source, and light source emits visible light to first light splitting structure, and visible light successively passes through first light splitting structure, transparent part and second light splitting structure, and the visible light filtered by second light splitting structure is irradiated on imaging device, and imaging device converts the received visible light into part image, and according to part image detection stress received by transparent part.Transparent part, for example, transparent lens has anisotropy, and optical axis direction coincides with stress direction.Light is birefringent when propagating in anisotropic medium, and transparent part is placed between first light splitting structure and second light splitting structure, and the visible light passing through first light splitting structure produces reflection and refraction on the surface of both sides of transparent part, so that color stripe appears on transparent part.The greater stress received by transparent part, the greater deformation generated, leading to the stronger anisotropy of transparent part, and the more intensive color stripe formed.Part image converted by imaging device is gray image, and the defect type of transparent part can be judged according to the gray value distribution of part image, and the stress received by transparent part can be automatically detected according to the gray value distribution of part image and defect type, and the accuracy is higher. BRIEF DESCRIPTION OF DRAWINGS
[0021] Fig. 1 It is the structure schematic diagram of the transparent part stress detection system of the utility model;
[0022] Fig. 2 It is the composition schematic diagram of the polarization detection device and light source of the utility model;
[0023] Fig. 3 It is the composition schematic diagram of the transparent part stress detection system of the utility model.
[0024] Significant mark: 1, first polarizer;2, second polarizer;3, polarization detection site;4, light source;5, imaging device;6, deformation detection device;7, X-ray source;8, fixed mold;9, light box;10, photoelectric receiving part;11, photoelectric surface;12, CCD camera;13, PLC processor;14, light shielding device;15, polarization detection device;16, transparent part. DETAILED DESCRIPTION
[0025] Preferred embodiments of the present application will be described in greater detail below, with reference to the drawings. While preferred embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.
[0026] Example 1
[0027] As Figs. 1-3 shown, the present embodiment provides a transparent part stress detection system, which comprises a first light splitting structure and a second light splitting structure, a polarization detection site 3 is arranged between the first light splitting structure and the second light splitting structure, and the polarization detection site 3 is used to place a transparent part 16; a light source 4 is arranged on the side of the first light splitting structure away from the second light splitting structure, and an imaging device 5 is arranged on the side of the second light splitting structure away from the first light splitting structure; the imaging device 5 is used to convert visible light filtered by the second light splitting structure into a part image, and detect the stress received by the transparent part 16 according to the part image.
[0028] The first light splitting structure and the second light splitting structure both adopt polarizing plates, the first light splitting structure is a first polarizing plate 1, and the second light splitting structure is a second polarizing plate 2. The polarizing plate is a thin film that can select a specific frequency of polarized light, and the working principle of the polarizing plate is to use the structure of the polarizing plate to absorb the component of light vibration in a specific direction, so that the light passing through the polarizing plate only contains the vibration component in a specific direction.
[0029] The first light splitting structure can convert the natural light emitted by the light source 4 into polarized light, reduce the reflection of light, and enhance the contrast of colors on the transparent part 16. In the present embodiment, the transparent part 16 is a transparent lens, which is made of polycarbonate. The transparent lens is made of an isotropic amorphous material, but during the injection molding process of the transparent lens, the external pressure is not removed before cooling and forming, forming residual stress, so that the transparent lens has anisotropy, and the optical axis direction coincides with the stress direction. When light propagates in an anisotropic medium, birefringence occurs, and the transparent lens is placed between the first light splitting structure and the second light splitting structure, and the polarized light after the first light splitting structure splits is irradiated onto the transparent lens, forming color fringes. The greater the stress received by the transparent lens, the greater the deformation, resulting in stronger anisotropy, and the more dense the color fringes formed.
[0030] The second light splitting structure filters the light passing through the transparent lens, so that polarized light in a specific direction passes, and the imaging device 5 converts the polarized light passing through the second light splitting structure into a part image. The imaging device 5 analyzes the gray value distribution of the part image, the gray value being between 0-255, 0 being black and 255 being white. According to the gray value distribution of the part image, the defect type of the transparent lens can be determined. Combined with the gray value distribution of the part image and the defect type of the transparent lens, the stress received by the transparent lens can be determined, and whether the quality of the transparent lens is qualified can be judged.
[0031] The embodiment provides a transparent part stress detection system, which comprises a first light splitting structure and a second light splitting structure, a polarization detection position 3 is arranged between the first light splitting structure and the second light splitting structure, and the polarization detection position 3 is used for placing a transparent part 16; a light source 4 is arranged on the side of the first light splitting structure away from the second light splitting structure, and an imaging device 5 is arranged on the side of the second light splitting structure away from the first light splitting structure; the imaging device 5 is used for converting visible light filtered by the second light splitting structure into a part image, and detecting the stress received by the transparent part 16 according to the part image. The transparent part 16 is placed on the polarization detection position 3, the light source 4 is turned on, the light source 4 emits visible light to the first light splitting structure, the visible light passes through the first light splitting structure, the transparent part 16 and the second light splitting structure in turn, the visible light filtered by the second light splitting structure irradiates on the imaging device 5, the imaging device 5 converts the received visible light into a part image, and the stress received by the transparent part 16 is detected according to the part image. The transparent part 16, for example, a transparent lens, has anisotropy, and the optical axis direction coincides with the stress direction. When light propagates in an anisotropic medium, birefringence occurs. The transparent part 16 is placed between the first light splitting structure and the second light splitting structure, the visible light passing through the first light splitting structure is reflected and refracted on the surfaces on both sides of the transparent part 16, so that color fringes appear on the transparent part 16. The greater the stress received by the transparent part 16, the greater the deformation, and the stronger the anisotropy of the transparent part 16, and the more dense the color fringes formed. The part image converted by the imaging device 5 is a gray image, the defect type of the transparent part 16 can be determined according to the gray value distribution of the part image, and the stress received by the transparent part 16 can be automatically detected according to the gray value distribution of the part image and the defect type, and the accuracy is high.
[0032] Embodiment 2
[0033] As Figs. 1-3As shown, the embodiment provides a transparent part stress detection system, which comprises a first light splitting structure and a second light splitting structure, a polarization detection site 3 is arranged between the first light splitting structure and the second light splitting structure, and the polarization detection site 3 is used to place a transparent part 16; a light source 4 is arranged on the side of the first light splitting structure away from the second light splitting structure, and an imaging device 5 is arranged on the side of the second light splitting structure away from the first light splitting structure; the imaging device 5 is used to convert visible light filtered by the second light splitting structure into a part image, and detect stress received by the transparent part 16 according to the part image.
[0034] The first light splitting structure is a first polarizer 1, the second light splitting structure is a second polarizer 2, and the light source 4 is a white light source.
[0035] The polarization detection site 3 is arranged between the first polarizer 1 and the second polarizer 2, and the transparent part 16 is placed on the polarization detection site 3. In this embodiment, the transparent part 16 is taken as a transparent lens as an example. The transparent lens is made of polycarbonate as an example. The transparent lens is made of an isotropic amorphous material, but in the injection molding process of the transparent lens, the external pressure is not removed before cooling and forming, forming residual stress, so that the transparent lens has anisotropy, and the optical axis direction coincides with the stress direction.
[0036] The first polarizer 1 and the second polarizer 2 make light of a specific vibration frequency and vibration direction pass through, the types of the first polarizer 1 and the second polarizer 2 are the same, and the type of the first polarizer 1 is a linear polarizer or a circular polarizer.
[0037] White light is composite light, which contains light of multiple colors. The transparent lens receives white light that has passed through the first polarizer 1. Different colors of light have different refractive indices, so that color fringes will appear on the transparent lens.
[0038] The first light splitting structure of the embodiment is a first polarizer 1, the second light splitting structure is a second polarizer 2, and the light source 4 is a white light source. The first polarizer 1 and the second polarizer 2 make light of a specific vibration frequency and vibration direction pass through, the types of the first polarizer 1 and the second polarizer 2 are the same, and the type of the first polarizer 1 is a linear polarizer or a circular polarizer.
[0039] Embodiment 3
[0040] As Figs. 1-3As shown, the embodiment provides a transparent part stress detection system, which comprises a first light splitting structure and a second light splitting structure, a polarization detection site 3 is arranged between the first light splitting structure and the second light splitting structure, and the polarization detection site 3 is used to place a transparent part 16; a light source 4 is arranged on the side of the first light splitting structure away from the second light splitting structure, and an imaging device 5 is arranged on the side of the second light splitting structure away from the first light splitting structure; the imaging device 5 is used to convert visible light filtered by the second light splitting structure into a part image, and detect stress received by the transparent part 16 according to the part image.
[0041] The transparent part stress detection system further comprises a deformation detection device 6, which is located below the imaging device 5, and the deformation detection device 6 is used to detect deformation of the transparent part 16.
[0042] The deformation detection device 6 comprises an X-ray source 7, and a deformation detection site is arranged close to the X-ray source 7, and the deformation detection site is used to detect deformation of the transparent part 16.
[0043] The deformation detection site is provided with a fixed mold 8, and the fixed mold 8 is used to place the transparent part 16; the fixed mold 8 is placed in a light box 9, and a strip-shaped lamp is arranged in the light box 9, and the strip-shaped lamp is used to emit visible light to the fixed mold 8 to position the transparent part 16 on the fixed mold 8.
[0044] The first light splitting structure, the second light splitting structure and the polarization detection site 3 constitute a polarization detection device 15, and the polarization detection device 15 and the deformation detection device 6 are both arranged in a detection box, and the deformation detection device 6 is arranged below the polarization detection device 15. After the deformation detection device 6 is used to detect deformation of the transparent part 16 such as a transparent lens, the polarization detection device 15 is used to detect stress received by the transparent lens.
[0045] The transparent lens is placed on the fixed mold 8 to prevent displacement of the transparent lens. After the position of the transparent lens is fixed, the X-ray source 7 is started, the X-ray source 7 emits X-rays to the transparent lens on the fixed mold 8, the X-rays penetrate the transparent lens, and thus the size of the transparent lens is obtained. The size of the transparent lens is compared with a standard size, and whether the size of the transparent lens is qualified can be judged.
[0046] The deformation amount of the transparent lens needs to meet the following standards: the deformation amplitude of the visible surface of the transparent lens cannot be greater than 0.8 mm, and the deformation amplitude of the invisible surface cannot be greater than 1.2 mm. If the deformation amplitude of the visible surface and / or the invisible surface of the transparent lens is greater than the corresponding threshold value, an alarm prompt is issued, and the transparent lens is processed to reduce the deformation amount of the transparent lens, so that the transparent lens meets the size standard.
[0047] Before deformation detection, the transparent lens is placed on the fixed mold 8, and the strip-shaped lamp in the light box 9 is turned on to emit visible light so that the operator can determine the position of the transparent lens. The strip-shaped lamp can be arranged on the inner side wall of the light box 9 or near the fixed mold 8 in the light box 9, which is not limited here.
[0048] The deformation detection device 6 of the embodiment includes an X-ray source 7, and a deformation detection position is arranged near the X-ray source 7, which is used to detect the deformation of the transparent part 16. The deformation detection position is provided with a fixed mold 8 for placing the transparent part 16; the fixed mold 8 is placed in a light box 9, and a strip-shaped lamp is arranged in the light box 9, which is used to emit visible light to the fixed mold 8 to position the transparent part 16 on the fixed mold 8. The transparent lens is placed on the fixed mold 8 to prevent displacement of the transparent lens. After the position of the transparent lens is fixed, the X-ray source 7 is started to emit X-rays to the transparent lens on the fixed mold 8, and the X-rays penetrate the transparent lens to obtain the size of the transparent lens. The size of the transparent lens is compared with the standard size to determine whether the size of the transparent lens is qualified.
[0049] Embodiment 4
[0050] As shown in Figs. 1-3 The embodiment provides a transparent part stress detection system, which includes a first light splitting structure and a second light splitting structure, a polarization detection position 3 is arranged between the first light splitting structure and the second light splitting structure, the polarization detection position 3 is used to place a transparent part 16; a light source 4 is arranged on the side of the first light splitting structure away from the second light splitting structure, and an imaging device 5 is arranged on the side of the second light splitting structure away from the first light splitting structure; the imaging device 5 is used to convert visible light filtered by the second light splitting structure into a part image and detect stress received by the transparent part 16 according to the part image.
[0051] The transparent part stress detection system further includes a deformation detection device 6, which is located below the imaging device 5 and is used to detect the deformation of the transparent part 16.
[0052] The deformation detection device 6 includes an X-ray source 7, and a deformation detection position is arranged near the X-ray source 7, which is used to detect the deformation of the transparent part 16.
[0053] The imaging device 5 includes a photoelectric receiving part 10, and a photoelectric surface 11 is arranged on the side of the photoelectric receiving part 10 facing the second light splitting structure, which is used to receive visible light filtered by the second light splitting structure.
[0054] The photoelectric receiving part 10 is provided with a CCD camera 12 on the side away from the photoelectric surface 11, which is used to shoot the color stripes on the photoelectric receiving part 10.
[0055] The imaging device 5 further comprises a PLC processor 13, which is electrically connected with the CCD camera 12, and is used to process and analyze the part image shot by the CCD camera 12 to determine whether the transparent part 16 has defects.
[0056] The photoelectric surface 11 is an arc surface, which is convex towards the direction close to the second polarizer 2, so that it can better receive the visible light passing through the second polarizer 2. The photoelectric surface 11 sends the light signal to the photoelectric receiving part 10, which is excited by the light signal to emit photoelectrons and form an image. The number of photoelectrons is positively correlated with the intensity of visible light, that is, the greater the intensity of visible light, the more the number of photoelectrons, and the greater the average gray value of the corresponding part image.
[0057] The CCD camera 12 is a digital camera with a charge-coupled device, which has the advantages of high sensitivity, strong light resistance, small distortion, small size, long service life and shock resistance. The image of the object to be shot is focused on the CCD chip through the lens, and the CCD accumulates the corresponding proportion of electric charge according to the intensity of light. The electric charge accumulated by each pixel is moved point by point under the control of video timing, and after filtering and amplification processing, an image signal is output.
[0058] The part image shot by the CCD camera 12 is a gray-scale image, and the gray values of different regions in the part image are different. According to the gray value distribution of the part image, the defect type of the part image can be determined.
[0059] The CCD camera 12 is electrically connected with the PLC processor 13, and the CCD camera 12 transmits the shot part image to the PLC processor 13, which counts the gray value of each pixel point in the part image, and the gray value ranges from 0 to 255. 0 is black and 255 is white. The defect types of the transparent lens include black spots, scratches, bubbles, deformation and air lines, and the specific inspection and determination standards are as follows: (1) Black spots are controlled according to the standard of 0.5mm, and when the number of black spots exceeds 2, the distance between the two black spots needs to exceed 150mm. (2) Scratches are ≤0.2㎜ in width and ≤0.2㎜ in depth, the length of scratches is ≤5mm, and the number of scratches on the surface of a single workpiece is ≤2. (3) Bubbles are not allowed to appear. (4) Deformation is qualified as long as it does not affect assembly, appearance and function and there is no quality hidden danger. (5) Air lines are not allowed on the appearance surface and other parts.
[0060] The 1mm above and 1mm below the transparent lens display area is divided into 10 small blocks, and the gray value of the qualified silk screen area is stored in the computer processor as teaching data. The gray value of the 10 small blocks after silk screen is compared with the teaching data to determine whether it is qualified. If the gray value of the defect area analyzed is consistent with the gray value of the qualified teaching, the transparent part 16 is determined to be a qualified part. The transparent part 16 that passes the detection enters the next process, and if the transparent part 16 is unqualified, manual repair is performed according to different defect types.
[0061] Preferably, the imaging device 5 further comprises a light shielding device 14 located between the photoelectric surface 11 and the second polarizer 2 to form a channel for the light passing out of the second polarizer 2 to propagate, thereby isolating the influence of external light, so that the photoelectric surface 11 only receives the light passing out of the second polarizer 2 to better reflect the deformation and stress of the transparent part 16.
[0062] The imaging device 5 of the embodiment comprises a photoelectric receiving part 10, which is provided with a photoelectric surface 11 on the side facing the second light splitting structure, and the photoelectric surface 11 is used to receive visible light filtered by the second light splitting structure. The photoelectric receiving part 10 is provided with a CCD camera 12 on the side away from the photoelectric surface 11, and the CCD camera 12 is used to shoot the photoelectric receiving part 10 to obtain the part image. The photoelectric surface 11 is an arc surface, and the photoelectric surface 11 is convex towards the direction close to the second polarizer 2, so that the photoelectric surface 11 can better receive visible light passing through the second polarizer 2. The photoelectric surface 11 sends the light signal to the photoelectric receiving part 10, and the photoelectric receiving part 10 is excited by the light signal to emit photoelectrons to form an image. The number of photoelectrons is positively correlated with the intensity of visible light, that is, the greater the intensity of visible light, the more the number of photoelectrons, and the greater the average gray value of the corresponding part image.
[0063] Unless specifically stated otherwise, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in the various examples herein are not limiting of the scope of the application. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and are not to be construed as limiting. Thus, other examples of the example embodiments can have different values. It is noted that like reference numerals and letters in the various figures indicate like items, and further discussion of the same is not necessary in subsequent figures.
[0064] It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described is turned over, then a
[0065] In addition, it should be noted that the use of "first", "second", and the like words of resemblance to define parts, only for the convenience of the corresponding parts are distinguished, as no other declaration, the above words have no special meaning, therefore can not be understood as limiting the scope of protection of the present application.
[0066] The above only the preferred embodiments of the present application, and is not intended to limit the present application, for those skilled in the art, the present application can be various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.
Claims
1. A transparent part stress detection system, characterized by, The application relates to a polarized light detection device for detecting stress of a transparent part, comprising a first light splitting structure and a second light splitting structure, a polarized light detection position is arranged between the first light splitting structure and the second light splitting structure, and the polarized light detection position is used for placing the transparent part; a light source is arranged on a side of the first light splitting structure away from the second light splitting structure; an imaging device is arranged on a side of the second light splitting structure away from the first light splitting structure; the imaging device is used for converting visible light filtered by the second light splitting structure into a part image and detecting stress received by the transparent part according to the part image.
2. The transparent part stress detection system of claim 1, wherein, The first light splitting structure is a first polarizer, and the second light splitting structure is a second polarizer.
3. The transparent part stress detection system of claim 1, wherein, The light source is a white light source.
4. The transparent part stress detection system of claim 2, wherein, The application further comprises a deformation detection device, which is arranged below the imaging device and is used for detecting deformation of the transparent part.
5. The transparent part stress detection system of claim 4, wherein, The deformation detection device comprises an X-ray source, and a deformation detection position is arranged close to the X-ray source and is used for detecting deformation of the transparent part.
6. The transparent part stress detection system of claim 5, wherein, The deformation detection position is provided with a fixing mold used for placing the transparent part; the fixing mold is arranged in a light box, and a strip-shaped lamp is arranged in the light box and is used for emitting visible light to the fixing mold so as to position the transparent part on the fixing mold.
7. The transparent part stress detection system of claim 5, wherein, The imaging device comprises a photoelectric receiving part, and a photoelectric surface is arranged on a side of the photoelectric receiving part facing the second light splitting structure and is used for receiving visible light filtered by the second light splitting structure.
8. The transparent part stress detection system of claim 7, wherein, A CCD camera is arranged on a side of the photoelectric receiving part away from the photoelectric surface, and the CCD camera is used for shooting the photoelectric receiving part to obtain the part image.
9. The transparent part stress detection system of claim 8, wherein, The imaging device further comprises a PLC processor, which is electrically connected with the CCD camera and is used for processing and analyzing the part image shot by the CCD camera to determine whether the transparent part has defects.
10. The transparent part stress detection system of claim 7, wherein, The imaging device further comprises a light shielding device, which is arranged between the photoelectric surface and the second polarizer to form a channel for light rays passing through the second polarizer to propagate.