A detection device

Abstract

The utility model discloses a detection device, including a conveyor belt and a shooting component, wherein the conveyor belt is used to convey a detection member, and the shooting component includes a mobile frame, a conveyor belt guide and a shooting device, wherein the mobile frame spans the conveyor belt, the conveyor belt guide and the shooting device are fixed on the mobile frame, the conveyor belt is sleeved on the conveyor belt guide, and the conveyor belt guide is used to guide the conveyor belt to form a gap in the conveying direction, wherein the gap makes the conveyor belt absent between the shooting device and the detection member, and the mobile frame and the gap can move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction. The utility model can immediately realize retesting when taking photos abnormally, and at the same time, the shooting area is not blocked by the conveyor belt, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of appearance detection, in particular to a detection device. Background Art

[0002] Photovoltaic modules, also known as solar panels, are components made by connecting several single cells in series and parallel and tightly sealing them. They are one of the core parts of photovoltaic power generation systems. They are composed of photovoltaic cells made of semiconductor materials (such as silicon) and can generate direct current when exposed to sunlight. Since silicon has the characteristic of electroluminescence (EL), the appearance of solar panels can be inspected by EL cameras. Specifically, a large number of unbalanced carriers are injected into the solar cell through probes. The large number of unbalanced carriers injected from the diffusion area can continuously recombine and emit light, emitting photons. These photons are then captured by EL cameras. The appearance of solar panels can be inspected by using computer puzzle processing to analyze the collected image features.

[0003] In the prior art, the photovoltaic components in the EL appearance inspection equipment of photovoltaic components are transported by the assembly line conveyor belt, and the camera is fixed under the conveyor belt. Through several pauses of the conveyor belt and multiple pressurization of the probe, the camera can take pictures of different parts of the component, and then the computer performs puzzle processing and image feature analysis. In order to ensure the assembly rhythm of the machine, the computer can complete the image feature analysis and realize the appearance inspection of the component only when the component flows out of the appearance inspection equipment. Because the component is conveyed by the assembly line, the above-mentioned inspection equipment cannot immediately realize re-testing (repeated photography) when there is an abnormality in the photography (abnormal parking position of the photovoltaic component on the conveyor belt causes puzzle abnormality, photovoltaic component does not normally pressurize and emit light, causing electroluminescent camera photography abnormality). If re-testing is required, the component must be transported to the inspection area again, and the inspection efficiency is low. In addition, there is a conveyor belt obstruction between the camera and the component of the existing inspection equipment, resulting in the need to adjust the image puzzle multiple times when taking pictures, further reducing the inspection efficiency. Therefore, it is urgent to provide an appearance inspection equipment that can realize immediate re-testing when taking pictures abnormally, and at the same time, there is no conveyor belt obstruction in the shooting area. Utility Model Content

[0004] In order to solve at least one of the problems mentioned in the above background technology, the utility model provides a detection device, which can immediately perform retesting when the photo is abnormal, and at the same time, the shooting area is not blocked by the conveyor belt, so the detection efficiency is high.

[0005] The specific technical solutions provided by the utility model are as follows:

[0006] The utility model provides a detection device, comprising a conveyor belt and a shooting component, wherein the conveyor belt is used to convey a detection member, and the shooting component comprises a moving frame, a conveyor belt guide and a shooting device, the moving frame spans the conveyor belt, the conveyor belt guide and the shooting device are fixed on the moving frame, the conveyor belt is sleeved on the conveyor belt guide, the conveyor belt guide is used to guide the conveyor belt to form a gap in a conveying direction, the gap makes the conveyor belt absent between the shooting device and the detection member, and the moving frame and the gap can move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction.

[0007] By means of the above technical scheme, the conveyor belt of the utility model is used to convey the inspection piece that needs to be inspected for appearance. When the inspection piece is conveyed to the gap of the conveyor belt, that is, the first inspection position, the conveyor belt stops running, and the shooting device starts to take pictures and inspect the first part of the inspection piece, and synchronously transmits the image to the computer for puzzle and image analysis. Then the moving frame starts to move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction, and the gap also moves synchronously with the moving frame. When the moving frame moves to the second inspection position, the moving frame stops, and the shooting device starts to take pictures and inspect the second part of the inspection piece, and synchronously transmits the image to the computer for puzzle and image analysis. Then the moving frame continues to move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction. The notch also moves synchronously. When it moves to the third detection position, the moving frame stops, and the shooting device starts to take photos of the third part of the detection piece, and synchronously transmits the image to the computer for puzzle and image analysis. Repeat the above actions until all parts of the detection piece are photographed. At this time, the computer completes the image puzzle and analysis. If an abnormal image is found (the abnormal stop position of the component on the conveyor belt causes the puzzle to be abnormal or the camera takes photos abnormally), the shooting device takes photos and the movement of the moving frame can immediately realize retesting until there is no abnormal image on the computer. Then, the photo detection of the current detection piece can be stopped, and the conveyor belt will re-run to transport the detection piece, and the next detection piece will be transported to the detection position of the notch, and the above detection process will be repeated for photo appearance detection. Through the above process, the detection device of the utility model can immediately realize retesting when the detection piece is photographed abnormally. At the same time, when taking photos, the notch makes it possible to prevent the camera and the detection piece from being blocked by the conveyor belt, that is, the shooting area of ​​the camera is not blocked by the conveyor belt, so the number of times the image puzzle is adjusted can be reduced, and the detection efficiency is high.

[0008] As a preferred embodiment of the above scheme, the shooting assembly further includes a driving member, and the driving member is used to drive the mobile frame to move along the conveying direction of the conveyor belt or the opposite direction of the conveying direction. The driving member includes a driving motor, and the driving motor is preferably a servo motor. According to the above scheme, the driving motor drives the mobile frame to move along the conveying direction of the conveyor belt or the opposite direction of the conveying direction. The driving motor is a servo motor, which can realize servo control of the mobile frame, so that the mobile frame can be accurately positioned when moving, thereby further improving the appearance inspection efficiency of the inspection part.

[0009] As a preferred embodiment of the above scheme, the driving member further comprises a screw, the driving motor drives the screw to rotate, and the screw is threadedly connected to the moving frame. According to the above scheme, the driving motor servo controls the rotation of the screw, and the screw drives the moving frame to move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction through the threaded connection with the moving frame, so that the moving frame can be effectively moved and accurately positioned, and the appearance inspection efficiency of the inspection part is high.

[0010] As a preferred embodiment of the above scheme, the mobile frame includes a frame body, a bottom plate and a top plate, the bottom plate and the top plate are respectively located below and above the detection member, the bottom plate and the top plate are respectively fixed with the shooting device, and the notch is located between the shooting device on the bottom plate and the detection member. According to the above scheme, the bottom plate and the top plate of the mobile frame are distributed below and above the detection member, and the camera is located on the bottom plate and the top plate, so that the mobile frame will not affect the detection member when moving, and the shooting device can respectively realize comprehensive photo detection of the front and back of the detection member.

[0011] As a preferred embodiment of the above scheme, the conveyor belt guide comprises a fixing member and a guide wheel, the guide wheel is rotatably arranged on the fixing member, the conveyor belt is sleeved on the guide wheel, and the fixing member is fixed to the bottom plate. According to the above scheme, by arranging the fixing member and the guide wheel, the conveyor belt guide can more effectively guide the conveyor belt to form a notch in the conveying direction.

[0012] As a preferred embodiment of the above scheme, the fixing member includes two first columns and a fixing plate, the first columns are fixed to the bottom plate, both ends of the fixing plate are fixed to the lower end of the first columns, the guide wheel includes an upper guide wheel and a lower guide wheel, the upper guide wheel is rotatably set on the upper end of the first column, the lower guide wheel is rotatably set on the fixing plate, the conveyor belt passes through the upper guide wheel on one of the first columns, the lower guide wheel and the upper guide wheel on another of the first columns in sequence, and the notch is located between the upper guide wheels. According to the above scheme, by installing guide wheels on the upper ends of the two first columns, arranging lower guide wheels on the fixed plate, and the conveyor belt is sleeved on the upper guide wheels and the lower guide wheels, the conveyor belt can be guided from the upper guide wheel of one first column through the lower guide wheel under the detection part and then back to the upper guide wheel of the other column, thereby allowing the conveyor belt to form a gap in the conveying direction, so that when the shooting device on the bottom plate takes pictures and detects the detection part above the gap, the shooting area is not blocked by the conveyor belt, thereby improving the detection efficiency. At the same time, when the mobile frame moves, the first column, the upper guide wheel, the fixed plate, and the lower guide wheel will move with the mobile frame, the conveyor belt does not move, and the upper guide wheel and the lower guide wheel move along the conveyor belt. This can effectively ensure that the gap moves with the mobile frame when the mobile frame moves, so that the detection part is fixed and the shooting device moves, and different parts of the detection part are photographed and detected, and at the same time, there is no conveyor belt blocking when taking pictures.

[0013] As a preferred embodiment of the above scheme, the conveyor belt is provided with a plurality of conveyor belts, the plurality of conveyor belts are arranged at intervals, the detection member is placed on the conveyor belt, the conveyor belt guide is provided with a plurality of groups, the conveyor belts correspond to the conveyor belt guides one by one, the conveyor belt is sleeved on a driving wheel and a plurality of driven wheels, the driving wheel and the driven wheels are rotatably arranged on a second column, the driving wheel is connected to a conveyor belt motor, the conveyor belt motor is preferably a servo motor, the driving wheels between different conveyor belts are connected by a first rotating shaft, the corresponding driven wheels between different conveyor belts are connected by a second rotating shaft, the corresponding upper guide wheels between different groups of conveyor belt guides and the corresponding lower guide wheels between different groups of conveyor belt guides are all connected by a third rotating shaft. According to the above scheme, several conveyor belts are arranged at intervals, and several groups of conveyor belt guides correspond to the conveyor belts one by one, so that a hollow area is formed between the conveyor belts. The shooting device on the bottom plate is arranged on the bottom plate corresponding to the hollow area, which further ensures that the shooting area of ​​the shooting device is not blocked by the conveyor belt. The conveyor belt motor is a servo motor that can realize servo control of the conveyor belt, so that the detection part can be accurately positioned when it is transported to the detection position, thereby improving the detection efficiency.

[0014] As a preferred embodiment of the above scheme, the photographing device includes an electroluminescent camera, a front camera and a back camera, and several groups of the electroluminescent cameras and the front camera are fixed on the bottom plate, and several groups of the back camera are fixed on the lower end surface of the top plate, and the electroluminescent cameras, the front camera and the back camera are respectively arranged correspondingly. According to the above scheme, the electroluminescent camera and the front camera respectively perform electroluminescent detection and front appearance detection on the detection part, and the back camera performs back appearance detection on the detection part. At the same detection position, the electroluminescent cameras, the front cameras and the back cameras of the same group and the corresponding group take pictures of the same part of the detection part, and the electroluminescent cameras, the front cameras and the back cameras of different groups take pictures of different parts of the detection part. At different detection positions, the electroluminescent cameras, the front cameras and the back cameras take pictures of different parts of the detection part, and after all parts of the detection part are detected, the computer completes the image puzzle and analysis.

[0015] As a preferred embodiment of the above solution, the detection device further comprises a clamping member and a power supply mechanism of the detection member. According to the above solution, the clamping member is used to clamp and position the detection member, and the power supply mechanism is used to power the detection member.

[0016] As a preferred embodiment of the above scheme, the clamping member includes a cylinder unit and a clamping block, the clamping block is used to clamp and position the detection member, the clamping block is fixed on the piston shaft of the cylinder unit, the cylinder unit can drive the clamping block to move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction or perpendicular to the conveying direction of the conveyor belt, and the power-on mechanism is used to power the detection member. According to the above scheme, when the detection member is conveyed to the first detection position, the cylinder unit drives the clamping block to move, the clamping block clamps and positions the detection member, and then the power-on mechanism powers the detection member, the detection member emits a bright light, and then the electroluminescent camera, the front camera and the back camera take photos of the detection member for detection. The setting of the clamping member ensures that the detection member will not shift or shake when the power-on mechanism powers the detection member, and the positioning of the detection member is more stable when taking photos, thereby ensuring the photo detection effect.

[0017] As a preferred embodiment of the above scheme, the detection device also includes a main frame, the cylinder unit of the clamping piece is fixed on the upper part of the main frame, a cross bar is fixed on the top of the main frame, the cross bar extends along the conveying direction of the conveyor belt and is located above the detection piece, a plurality of groups of power-on mechanisms are fixed on the cross bar, the second column is arranged on both sides of the main frame along the conveying direction of the conveyor belt, the bottom of the conveyor belt passes through the bottom of the main frame, a main cross plate is fixed in the middle of the bottom of the main frame along the conveying direction of the conveyor belt, the drive motor is fixed at one end of the main cross plate, the lead screw is located above the main cross plate, a support plate is fixed in the middle of the bottom of the movable frame, the support plate is screwed on the lead screw, a side cross plate is fixed on the bottom side of the main frame along the conveying direction of the conveyor belt, a guide rail extending along the conveying direction of the conveyor belt is fixed on the side cross plate, a slider is fixed on the bottom side of the movable frame, and the slider can slide on the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 The structural diagram of the utility model is shown in which the main frame and the detection components are hidden;

[0021] Figure 3 for Figure 2 The structural schematic diagram of the mobile frame is hidden;

[0022] Figure 4 It is a schematic diagram of the structure of the top plate of the utility model when viewed from above. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As described in the background technology, the existing photovoltaic component appearance inspection equipment cannot immediately perform retesting (repeated photography) when abnormalities occur during photography (abnormality in the parking position of the photovoltaic component on the conveyor belt causes abnormal puzzles, and abnormality in the electroluminescent camera photography caused by the photovoltaic component not being normally pressurized to emit light). If retesting is required, the component must be re-conveyed to the inspection area, and the inspection efficiency is low. In addition, there is a conveyor belt obstruction between the camera and the component of the existing inspection equipment, resulting in the need to adjust the image puzzle multiple times when taking pictures, further reducing the inspection efficiency. The utility model can immediately perform retesting when abnormalities occur during photography, and at the same time, there is no conveyor belt obstruction in the shooting area, and the inspection efficiency is high. The embodiments of the utility model are described in detail below.

[0025] Embodiment 1

[0026] like Figures 1 to 4 As shown, the utility model provides a detection device, including a conveyor belt 1 and a shooting component 2, the conveyor belt 1 is used to convey the detection member 100, the shooting component 2 includes a movable frame 21, a conveyor belt guide 22 and a shooting device 23, the movable frame 21 spans the conveyor belt 1, the conveyor belt guide 22 and the shooting device 23 are fixed on the movable frame 21, the conveyor belt 1 is sleeved on the conveyor belt guide 22, the conveyor belt guide 22 is used to guide the conveyor belt 1 to form a gap 11 in the conveying direction, the gap 11 makes the conveyor belt 1 absent between the shooting device 23 and the detection member 100, the movable frame 21 and the gap 11 can move along the conveying direction of the conveyor belt 1 or in the opposite direction of the conveying direction.

[0027] The photographing assembly 2 further includes a driving member 24, which is used to drive the mobile frame 21 to move along the conveying direction of the conveyor belt 1 or the opposite direction of the conveying direction. The driving member 24 includes a driving motor 241, and the driving motor 241 is preferably a servo motor. The driving motor 241 drives the mobile frame 21 to move along the conveying direction of the conveyor belt 1 or the opposite direction of the conveying direction. The driving motor 241 is a servo motor that can realize servo control of the mobile frame 21, so that the mobile frame 21 can be accurately positioned when moving, thereby further improving the appearance inspection efficiency of the inspection member 100. The driving member 24 also includes a lead screw 242, and the driving motor 241 drives the lead screw 242 to rotate, and the lead screw 242 is threadedly connected to the mobile frame 21. The driving motor 241 servo controls the rotation of the lead screw 242, and the lead screw 242 drives the mobile frame 21 to move along the conveying direction of the conveyor belt 1 or in the opposite direction of the conveying direction through the threaded connection with the mobile frame 21, so that the mobile frame 21 can be effectively moved and accurately positioned, and the appearance inspection efficiency of the inspection piece 100 is high.

[0028] The mobile frame 21 includes a frame body 211, a bottom plate 212 and a top plate 213, wherein the bottom plate 212 and the top plate 213 are respectively located below and above the detection member 100, the camera 23 is respectively fixed on the bottom plate 212 and the top plate 213, and the notch 11 is located between the camera 23 on the bottom plate 212 and the detection member 100. The bottom plate 212 and the top plate 213 of the mobile frame 21 are distributed below and above the detection member 100, and the camera 23 is located on the bottom plate 212 and the top plate 213, so that the mobile frame 21 will not affect the detection member 100 when moving, and the camera 23 can respectively realize comprehensive photo detection of the front and back sides of the detection member 100. The photographing device 23 includes an electroluminescent camera 231, a front camera 232 and a back camera 233. Several groups of the electroluminescent cameras 231 and the front cameras 232 are fixed on the bottom plate 212, and several groups of the back cameras 233 are fixed on the lower end surface of the top plate 213. The electroluminescent cameras 231, the front cameras 232 and the back cameras 233 are arranged correspondingly.

[0029] The conveyor belt guide 22 includes a fixing member 221 and a guide wheel 222. The guide wheel 222 is rotatably arranged on the fixing member 221. The conveyor belt 1 is sleeved on the guide wheel 222. The fixing member 221 is fixed on the bottom plate 212. By arranging the fixing member 221 and the guide wheel 222, the conveyor belt guide 22 can more effectively guide the conveyor belt 1 to form the notch 11 in the conveying direction. The fixing member 221 includes two first columns 223 and a fixing plate 224, the first columns 223 are fixed on the bottom plate 212, and both ends of the fixing plate 224 are fixed on the lower end of the first column 223. The guide wheel 222 includes an upper guide wheel 225 and a lower guide wheel 226, the upper guide wheel 225 is rotatably set on the upper end of the first column 223, and two lower guide wheels 226 are provided, and the two lower guide wheels 226 are rotatably set on the fixing plate 224. The conveyor belt 1 passes through the upper guide wheel 225, the lower guide wheel 226 on one of the first columns 223 and the upper guide wheel 225 on another of the first columns 223 in sequence, and the notch 11 is located between the upper guide wheels 225 of the two first columns 223. By installing guide wheels 225 on the upper ends of the two first columns 223, arranging lower guide wheels 226 on the fixing plate 224, and sleeve the conveyor belt 1 on the upper guide wheels 225 and the lower guide wheels 226, the conveyor belt 1 can be guided from the upper guide wheel 225 of one first column 223 through the lower guide wheel 226 below the detection member 100 and then back to the upper guide wheel 225 of the other column 223, thereby forming a notch 11 in the conveying direction of the conveyor belt 1, so that when the camera 23 on the bottom plate 212 takes a photo of the detection member 100 above the notch 11, the camera can take a photo. The photographing area is not blocked by the conveyor belt 1, which improves the detection efficiency. At the same time, when the mobile frame 21 moves, the first column 223, the upper guide wheel 225, the fixed plate 224, and the lower guide wheel 226 will move with the mobile frame 21, and the conveyor belt 1 does not move. The upper guide wheel 225 and the lower guide wheel 226 move along the conveyor belt 1. This can effectively ensure that when the mobile frame 21 moves, the gap 11 also moves with the mobile frame 21, so that the detection piece 100 is fixed and the shooting device 23 moves, and different parts of the detection piece 100 are photographed and detected. At the same time, there is no conveyor belt 1 blocking the way when taking pictures.The conveyor belt 1 is provided with a plurality of conveyor belts 1, and the plurality of conveyor belts 1 are arranged at intervals. The detection member 100 is placed on the conveyor belt 1, and the conveyor belt guide 22 is provided with a plurality of groups. The conveyor belt 1 corresponds to the conveyor belt guide 22 one by one. The conveyor belt 1 is sleeved on a driving wheel 12 and a plurality of driven wheels 13, and the driving wheel 12 and the driven wheels 13 are rotatably arranged on a second column 14. The driving wheel 12 is connected to a conveyor belt motor 15, and the conveyor belt motor 15 is preferably a servo motor. The conveyor belt motor 15 is fixed on the second column 14. The driving wheels 12 between different conveyor belts 1 are connected by a first rotating shaft 16, and the corresponding driven wheels 13 between different conveyor belts 1 are connected by a second rotating shaft 17. The corresponding upper guide wheels 225 between different groups of conveyor belt guides 22 and the corresponding lower guide wheels 226 between different groups of conveyor belt guides 22 are all connected by a third rotating shaft 18. Several conveyor belts 1 are arranged at intervals, and several groups of conveyor belt guides 22 correspond to the conveyor belts 1 one by one, so that a hollow area is formed between the conveyor belts 1. The shooting device 23 on the bottom plate 212 is arranged on the bottom plate 212 corresponding to the hollow area, which further ensures that the camera shooting area is not blocked by the conveyor belt 1. The conveyor belt motor 15 is a servo motor that can realize servo control of the conveyor belt 1, so that the detection part 100 can be accurately positioned when it is transported to the detection position, thereby improving the detection efficiency. In this embodiment, five conveyor belts 1 are provided, and five groups of conveyor belt guides 22 are provided. The five groups of conveyor belt guides 22 are provided with five fixed plates 224. A group of electroluminescent cameras 231 and front cameras 232 are fixed on the bottom plate 212 between adjacent fixed plates 224. There are a total of four groups of electroluminescent cameras 231 and front cameras 232, and the electroluminescent cameras 231 and front cameras 232 are located between the third rotating shafts 18. A back camera 233 is fixed on the lower end surface of the top plate 213 directly above each group of electroluminescent cameras 231 and front cameras 232. The electroluminescent camera 231 and the front camera 232 perform electroluminescent detection and front appearance detection on the inspection piece 100 respectively, and the back camera 233 performs back appearance detection on the inspection piece 100. At the same inspection position, the electroluminescent camera 231, the front camera 232 and the back camera 233 of the same group photograph the same part of the inspection piece 100, and the electroluminescent cameras 231, the front camera 232 and the back camera 233 of different groups photograph different parts of the inspection piece 100. At different inspection positions, the electroluminescent camera 231, the front camera 232 and the back camera 233 respectively photograph and detect different parts of the inspection piece 100. After all parts of the inspection piece 100 are inspected, the computer completes image puzzle and analysis.

[0030] The detection device also includes a clamping member 3 and a power-on mechanism 4 of the detection member 100, the clamping member 3 includes a cylinder unit 31 and a clamping block 32, the clamping block 32 is fixed on the piston shaft of the cylinder unit 31, the cylinder unit 31 can drive the clamping block 32 to move along the conveying direction of the conveyor belt 1 or in the opposite direction of the conveying direction or perpendicular to the conveying direction of the conveyor belt 1, the power-on mechanism 4 is used to power the detection member 100, in this embodiment, the cylinder unit 31 includes a first cylinder 311 and a second cylinder 312, the second cylinder 312 is fixed on the piston shaft of the first cylinder 311, and the clamping block 32 is fixed on the piston shaft of the first cylinder 311. On the piston shaft of the second cylinder 312, the clamping block 32 has a right-angled clamping groove corresponding to the edge of the detection piece 100, and the clamping groove can clamp the edge of the detection piece 100. The first cylinder 311 drives the clamping block 32 to move along the conveying direction of the conveyor belt 1 or in the opposite direction of the conveying direction. The second cylinder 312 drives the clamping block 32 to move in a conveying direction perpendicular to the conveyor belt 1. The detection piece 100 is respectively provided with a plurality of groups of clamping pieces 3 on the front and rear sides along the conveying direction of the conveyor belt 1. The power-on mechanism 4 includes a probe pressing cylinder 41 and a probe 42 fixed on the piston shaft of the probe pressing cylinder 41. A plurality of power-on mechanisms 4 are provided above the detection piece 100. When the detection piece 100 is transported to the first detection position, the cylinder unit 31 drives the clamping block 32 to move, and the clamping block 32 clamps the detection piece 100 in place. Then the power-on mechanism 4 powers on the detection piece 100, and the detection piece 100 emits a bright light. Then the electroluminescent camera 231, the front camera 232 and the back camera 233 take photos of the detection piece 100 for detection. The setting of the clamping member 3 ensures that the detection piece 100 will not shift or shake when the power-on mechanism 4 powers on the detection piece 100. At the same time, the positioning of the detection piece 100 is more stable when taking photos, thereby ensuring the photo detection effect.

[0031] The detection device also includes a main frame 5, the cylinder unit 31 of the clamping member 3 is fixed to the upper part of the main frame 5, a cross bar 51 is fixed to the top of the main frame 5, the cross bar 51 extends along the conveying direction of the conveyor belt 1 and is located above the detection member 100, a plurality of groups of power-on mechanisms 4 are fixed to the cross bar 5, the second column 14 is arranged on both sides of the main frame 5 along the conveying direction of the conveyor belt 1, the bottom of the conveyor belt 1 passes through the bottom of the main frame 5, and a main cross bar 51 is fixed to the middle of the bottom of the main frame 5 along the conveying direction of the conveyor belt 1. Plate 52, the driving motor 241 is fixed at one end of the main cross plate 52, the screw 242 is located above the main cross plate 52, a support plate 214 is fixed in the middle of the bottom of the movable frame 21, the support plate 214 is screwed on the screw 242, a side cross plate 53 is fixed on the bottom side of the main frame 5 along the conveying direction of the conveyor belt 1, a guide rail 6 extending along the conveying direction of the conveyor belt 1 is fixed on the side cross plate 53, a slider 215 is fixed on the bottom side of the movable frame 21, and the slider 215 can slide on the slide rail 6.

[0032] The conveyor belt 1 of the utility model is used to convey the inspection piece 100 that needs to be inspected for appearance. In this embodiment, the inspection piece 100 is a photovoltaic module 100 (solar panel). When the photovoltaic module 100 is conveyed to the notch 11 of the conveyor belt 1, that is, the first inspection position, the conveyor belt motor 15 brakes to stop the conveyor belt 1, and the cylinder unit 31 drives the clamping block 32 to move. The clamping block 32 clamps the photovoltaic module 100 and positions it. Then the power-on mechanism 4 powers on the photovoltaic module 100, and the photovoltaic module 100 emits bright light. The electroluminescent camera 231, the front camera 232 and the back camera 233 start to focus on the light. The first part of the photovoltaic component 100 is photographed and tested, and the image is synchronously transmitted to the computer for puzzle and image analysis. Then the driving motor 241 drives the lead screw 242 to rotate, and the lead screw 242 drives the mobile frame 21 to start moving along the conveying direction of the conveyor belt 1 or the opposite direction of the conveying direction. At the same time, the gap 11 also moves synchronously with the mobile frame 21. When it moves to the second detection position, the driving motor 241 brakes to stop the mobile frame 21 to achieve precise positioning. Then the electroluminescent camera 231, the front camera 232 and the back camera 233 start to take pictures and detect the second part of the photovoltaic component 100, and synchronously transmit the image to the computer for puzzle and image analysis. The image is transmitted to the computer for puzzle and image analysis, and then the driving motor 241 drives the mobile frame 21 to continue to move along the conveying direction of the conveyor belt 1 or the opposite direction of the conveying direction, and the gap 11 also moves synchronously. When the mobile frame 21 moves to the third detection position, the electroluminescent camera 231, the front camera 232 and the back camera 233 start to take pictures of the third part of the photovoltaic component 100, and synchronously transmit the image to the computer for puzzle and image analysis. Repeat the above actions until all parts of the photovoltaic component 100 are photographed. At this time, the computer completes the image puzzle and analysis. In this embodiment, , the mobile frame 21 moves twice, and the camera 23 takes photos and detects at three detection positions. If an abnormal image is found (the abnormal parking position of the photovoltaic component 100 on the conveyor belt 1 causes the puzzle to be abnormal, and the photovoltaic component 100 is not normally pressurized to emit light, causing the electroluminescent camera 231 to take photos abnormally), the camera 23 takes photos and the mobile frame 21 moves to immediately achieve retesting, until there is no abnormal image on the computer, then the photo detection of the current photovoltaic component 100 can be stopped, and the conveyor belt 1 reruns to transport the photovoltaic component, and the next photovoltaic component is transported to the detection position of the notch 11, and the above detection process is repeated to perform photo appearance detection. Through the above process, the detection device of the utility model can immediately achieve retesting when the photovoltaic component 100 is abnormally photographed. At the same time, when taking photos, the notch 11 is used to make the electroluminescent camera 231, the front camera 232 and the photovoltaic component 100 not blocked by the conveyor belt 1, that is, the shooting area of ​​the electroluminescent camera 231 and the front camera 232 is not blocked by the conveyor belt 1, so the number of times the image puzzle is adjusted can be reduced, and the detection efficiency is high.

[0033] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A detection device, characterized in that: It includes a conveyor belt and a shooting component, the conveyor belt is used to convey the detection part, the shooting component includes a moving frame, a conveyor belt guide and a shooting device, the moving frame spans the conveyor belt, the conveyor belt guide and the shooting device are fixed on the moving frame, the conveyor belt is sleeved on the conveyor belt guide, the conveyor belt guide is used to guide the conveyor belt to form a gap in the conveying direction, the gap makes the conveyor belt absent between the shooting device and the detection part, and the moving frame and the gap can move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction.

2. The detection device according to claim 1, characterized in that: The shooting assembly further includes a driving member, and the driving member is used to drive the movable frame to move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction.

3. The detection device according to claim 2, characterized in that: The driving member includes a driving motor and a lead screw. The driving motor drives the lead screw to rotate. The lead screw is threadedly connected to the moving frame.

4. The detection device according to claim 1, characterized in that: The movable frame comprises a frame body, a bottom plate and a top plate, wherein the bottom plate and the top plate are respectively located below and above the detection member, the shooting devices are respectively fixed on the bottom plate and the top plate, and the notch is located between the shooting device on the bottom plate and the detection member.

5. The detection device according to claim 4, characterized in that: The conveyor belt guide comprises a fixing member and a guide wheel, the guide wheel is rotatably arranged on the fixing member, the conveyor belt is sleeved on the guide wheel, and the fixing member is fixed on the bottom plate.

6. The detection device according to claim 5, characterized in that: The fixing member includes two first columns and a fixing plate, the first columns are fixed to the bottom plate, the two ends of the fixing plate are fixed to the lower end of the first columns, the guide wheels include an upper guide wheel and a lower guide wheel, the upper guide wheel is rotatably arranged on the upper end of the first column, the lower guide wheel is rotatably arranged on the fixing plate, the conveyor belt passes through the upper guide wheel, the lower guide wheel on one of the first columns and the upper guide wheel on another of the first columns in sequence, and the notch is located between the upper guide wheels.

7. The detection device according to claim 6, characterized in that: The conveyor belts are provided with a plurality of strips, and the plurality of conveyor belts are arranged at intervals. The detection member is placed on the conveyor belt, and the conveyor belt guides are provided with a plurality of groups. The conveyor belts correspond to the conveyor belt guides one by one. The conveyor belt is sleeved on a driving wheel and a plurality of driven wheels, and the driving wheel and the driven wheels are rotatably arranged on a second column. The driving wheel is connected to a conveyor belt motor, the driving wheels between different conveyor belts are connected by a first rotating shaft, and the corresponding driven wheels between different conveyor belts are connected by a second rotating shaft, and the corresponding upper guide wheels between different groups of conveyor belt guides and the corresponding lower guide wheels between different groups of conveyor belt guides are all connected by a third rotating shaft.

8. The detection device according to claim 4, characterized in that: The shooting device includes an electroluminescent camera, a front camera and a back camera. Several groups of the electroluminescent cameras and the front cameras are fixed on the bottom plate, and several groups of the back cameras are fixed on the lower end surface of the top plate. The electroluminescent cameras, the front cameras and the back cameras are arranged correspondingly.

9. The detection device according to any one of claims 1 to 8, characterized in that: It also includes a clamping member and a power-on mechanism of the detection member, wherein the clamping member is used to clamp and position the detection member, and the power-on mechanism is used to power the detection member.

10. The detection device according to claim 9, characterized in that: The clamping member includes a cylinder unit and a clamping block, wherein the clamping block is used to clamp and position the detection member, and the clamping block is fixed on the piston shaft of the cylinder unit. The cylinder unit can drive the clamping block to move along the conveying direction of the conveyor belt or in the opposite direction of the conveying direction or perpendicular to the conveying direction of the conveyor belt.

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