Optical waveguide inspection and sorting equipment

Abstract

The present invention relates to the technical field of optical waveguide sheet detection equipment, and discloses an optical waveguide sheet detection and sorting equipment, including a frame, an optical waveguide sheet detection mechanism, a feeding module, a discharging module and a handling module; the optical waveguide sheet detection mechanism includes a placement through hole and a first shooting detection module, and the optical waveguide sheet is placed in the placement through hole; the first detection camera of the first shooting detection module is driven by a first longitudinal linear module to move away from or approach the optical waveguide sheet; the depth of field distance of the first detection camera is less than the thickness of the optical waveguide sheet. The feeding module and the discharging module are respectively arranged at the upstream and downstream of the optical waveguide sheet detection mechanism; the handling module is used to transfer the optical waveguide sheet between the feeding module, the optical waveguide sheet detection mechanism and the discharging module to realize automatic detection, and in the case where only a single first detection camera is used to shoot from one side of the optical waveguide sheet, the image of the upper surface and the lower surface of the optical waveguide sheet can be effectively obtained, and there is no need to repeatedly carry the optical waveguide sheet, thereby avoiding damage to the optical waveguide sheet.

Description

Technical Field

[0001] The present invention relates to the technical field of optical waveguide plate detection equipment, and in particular to an optical waveguide plate detection and sorting equipment. Background Art

[0002] As an important optical device, optical waveguide plays an important role in optical communication, optical biosensing, optical transistors, etc. Optical waveguides are light-transmitting and thin. During the front and back detection process, the background at the bottom interferes with the light to a certain extent, affecting the detection effect. There is a problem that optical waveguide detection mechanisms or equipment are prone to false detection, resulting in low detection efficiency. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an optical waveguide sheet detection and sorting device, which can realize automatic detection through the linkage of a handling module, an optical waveguide sheet detection mechanism, a feeding module and a discharging module, and combines the movement of a first detection camera and reasonably configures the depth of field distance of the first detection camera to reduce the interference of the bottom background on the light, realizes double-sided detection of the optical waveguide sheet, effectively improves the detection efficiency and reduces the risk of damage to the optical waveguide sheet.

[0004] An embodiment of the present invention provides an optical waveguide sheet detection and sorting device, comprising:

[0005] Frame;

[0006] The optical waveguide sheet detection mechanism comprises a rotating placement module and a first shooting detection module, wherein the rotating placement module is connected to the frame, the rotating placement module is provided with a placement through hole, the inner wall of the placement through hole is provided with a support portion extending toward the middle of the placement through hole, and the support portion is used to support the optical waveguide sheet; the first shooting detection module is connected to the frame, the first shooting detection module comprises a first detection camera and a first longitudinal linear module, the first detection camera is arranged above the placement through hole, the depth of field distance of the first detection camera is less than the thickness of the optical waveguide sheet, the first detection camera is used to capture an image of a first surface of the optical waveguide sheet, and is driven by the first longitudinal linear module to move a preset distance toward the direction close to the optical waveguide sheet, so as to capture a partial or full image of a second surface of the optical waveguide sheet through the optical waveguide sheet;

[0007] A feeding module is arranged upstream of the optical waveguide sheet detection mechanism, the feeding module comprises a feeding platform and an ejector module, the feeding platform is provided with a first mounting position, the first mounting position is used to mount a feeding wafer ring, the feeding wafer ring is suitable for carrying the optical waveguide sheet to be detected, the feeding platform is connected to the frame and is arranged above the ejector module;

[0008] A discharging module connected to the frame and located downstream of the optical waveguide sheet detection mechanism;

[0009] The transport module is connected to the feeding module, the optical waveguide sheet detection mechanism and the discharging module.

[0010] The embodiments of the present invention have at least the following beneficial effects: the transport module, the optical waveguide sheet detection mechanism, the feeding module and the discharging module are linked to realize automatic detection, the depth of field distance of the first detection camera is smaller than the thickness of the optical waveguide sheet, and the first and second surfaces of the optical waveguide sheet will not fall into the depth of field range of the first detection camera at the same time when shooting the image, that is, the first detection camera can only obtain a clear image of the corresponding surface when shooting the first or second surface of the optical waveguide sheet, and in view of the light transmittance of the optical waveguide sheet, when only a single first detection camera is used to shoot from one side of the optical waveguide sheet, clear images of the first and second surfaces of the optical waveguide sheet can be effectively obtained by moving the first detection camera to control the change of the focus, and the entire detection process does not require repeated transport or turning of the optical waveguide sheet, which effectively avoids damage to the optical waveguide sheet during transport or turning.

[0011] According to some embodiments of the present invention, the supply platform is provided with a second mounting position, and the second mounting position is used to mount a supply tray, and the supply tray is suitable for carrying the optical waveguide sheet to be inspected.

[0012] According to some embodiments of the present invention, the optical waveguide sheet detection and sorting device further comprises a pre-scan module connected to the frame, the pre-scan module comprises a pre-scan camera, the pre-scan camera is located above the feeding module, the detection field of the pre-scan camera is oriented toward the feeding module, and is used to detect the position of the optical waveguide sheet;

[0013] The feeding module also includes a first feeding linear module, a second feeding linear module and a feeding rotating module. The extension directions of the first feeding linear module and the second feeding linear module are parallel to the rotating placement module and there is an angle between the two. The fixed end of the first feeding linear module is connected to the frame, the free end of the first feeding linear module is connected to the fixed end of the second feeding linear module, the free end of the second feeding linear module is connected to the fixed end of the feeding rotating module, the free end of the feeding rotating module is connected to the feeding carrier and the rotation axis of the feeding rotating module is perpendicular to the rotating placement module.

[0014] According to some embodiments of the present invention, the pre-scan module also includes a pre-scan linear module, a free end of the pre-scan linear module is connected to the pre-scan camera, a fixed end of the pre-scan linear module is connected to the frame, and the pre-scan linear module extends in a direction perpendicular to the rotating placement module.

[0015] According to some embodiments of the present invention, the transport module includes at least one nozzle module, the nozzle module includes a first nozzle, the nozzle module is connected to the frame, and the first nozzle can move relative to the frame;

[0016] The suction nozzle module also includes a first conveying linear module, a second conveying linear module, a third conveying linear module and a conveying rotating module. The extension directions of the first conveying linear module and the second conveying linear module are parallel to the rotating placement module and there is an angle between the two. The third conveying linear module extends in a direction perpendicular to the rotating placement module. The fixed end of the first conveying linear module is connected to the frame, the free end of the first conveying linear module is connected to the fixed end of the second conveying linear module, the free end of the second conveying linear module is connected to the fixed end of the third conveying linear module, the free end of the third conveying linear module is connected to the fixed end of the conveying rotating module, the free end of the conveying rotating module is connected to the first suction nozzle, and the rotation axis of the conveying rotating module is perpendicular to the rotating placement module.

[0017] According to some embodiments of the present invention, the transport module includes two nozzle modules, which are respectively a loading nozzle module and a unloading nozzle module; the first nozzle of the loading nozzle module is suitable for transporting the optical waveguide sheet of the feeding module to the optical waveguide sheet detection mechanism; the first nozzle of the unloading nozzle module is suitable for transporting the optical waveguide sheet of the optical waveguide sheet detection mechanism to the unloading module.

[0018] According to some embodiments of the present invention, the optical waveguide sheet detection and sorting equipment further includes a loading and shooting module, the loading and shooting module includes a loading and shooting camera, the loading and shooting module is connected to the frame, the loading and shooting camera is arranged between the feeding module and the optical waveguide sheet detection mechanism, and the loading and shooting camera is suitable for taking an image of the optical waveguide sheet adsorbed by the loading nozzle module;

[0019] and / or,

[0020] The optical waveguide sheet detection and sorting equipment also includes a material unloading overhead shooting module, which includes a material unloading overhead shooting camera. The material unloading overhead shooting module is connected to the frame, and the material unloading overhead shooting camera is arranged between the optical waveguide sheet detection mechanism and the discharging module. The material unloading overhead shooting camera is suitable for capturing the image of the optical waveguide sheet adsorbed by the material unloading suction nozzle module.

[0021] According to some embodiments of the present invention, the optical waveguide sheet detection and sorting device further comprises a flip module, the flip module comprises a second suction nozzle and a flip rotation module, the second suction nozzle is connected to the free end of the flip rotation module, the fixed end of the flip rotation module is movably connected to the frame, and the rotation axis of the flip rotation module is parallel to the rotation placement module;

[0022] The second suction nozzle is suitable for switching between a flipping material taking state and a flipping material feeding state. The flipping material taking state is a state in which the second suction nozzle is located above the optical waveguide sheet detection mechanism and adsorbs the optical waveguide sheet after detection. The flipping material feeding state is a state in which the second suction nozzle adsorbs the optical waveguide sheet after detection and flips the optical waveguide sheet 180 degrees.

[0023] The first suction nozzle can absorb the optical waveguide sheet on the second suction nozzle in the flip feeding state and move to the discharge module.

[0024] According to some embodiments of the present invention, the discharging module comprises a discharging platform;

[0025] The discharge stage is equipped with at least two discharge wafer rings, and different discharge wafer rings are used to place optical waveguide sheets of different qualities;

[0026] or,

[0027] The discharging platform is equipped with at least two discharging trays, and different discharging trays are used to place the optical waveguide sheets of different qualities.

[0028] According to some embodiments of the present invention, the optical waveguide sheet detection and sorting equipment also includes a discharge detection module, the discharge detection module includes a discharge camera, the discharge detection module is connected to the frame, the discharge camera is located above the discharge module, the detection field of the discharge camera is toward the discharge module, and is used to detect the position of the optical waveguide sheet on the discharge module.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 It is an isometric view of an optical waveguide plate detection and sorting device according to an embodiment of the present invention;

[0032] Figure 2It is a structural schematic diagram of a feeding module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of an ejector pin module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0034] Figure 4 A schematic structural diagram of a pre-scan module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0035] Figure 5 This is one of the structural schematic diagrams of the handling module of the optical waveguide sheet detection and sorting equipment according to an embodiment of the present invention;

[0036] Figure 6 This is a second structural schematic diagram of a handling module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0037] Figure 7 It is a structural schematic diagram of a loading overhead shooting module and a unloading overhead shooting module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0038] Figure 8 A schematic diagram of the structure of a flip module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0039] Fig. 9 It is a schematic structural diagram of a discharging module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0040] Fig.10 It is a structural schematic diagram of a material discharging detection module of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0041] Fig.11 A schematic structural diagram of an optical waveguide sheet detection mechanism of an optical waveguide sheet detection and sorting device according to an embodiment of the present invention;

[0042] Fig.12 It is a structural schematic diagram of a rotation placement module of an optical waveguide sheet detection mechanism according to an embodiment of the present invention;

[0043] Fig.13 for Fig.12 A magnified view of the part A in the middle;

[0044] Fig.14 for Fig.13 Enlarged view of part B in the middle.

[0045] Reference numerals:

[0046] 100, frame;

[0047] 200, optical waveguide plate detection mechanism; 210, rotating placement module; 211, rotating placement table; 2111, placement through hole; 2112, support part; 21121, vacuum channel; 21122, vacuum air hole; 2113, material loading and unloading station; 2114, overhead detection station; 2115, overhead detection station; 2116, rotating base; 2117, vacuum support carrier; 212, platform; 220, first shooting detection module; 221, first detection camera; 222, first backlight source; 223, first horizontal linear module; 224, first vertical linear module; 230, second shooting detection module; 231, second detection camera; 234, second horizontal linear module;

[0048] 300, feeding module; 310, feeding carrier; 311, feeding wafer ring; 312, feeding carrier plate; 320, ejector module; 321, ejector; 322, ejector linear part; 323, first ejector adjustment part; 324, second ejector adjustment part; 340, first feeding linear module; 350, second feeding linear module; 360, feeding rotary module;

[0049] 400, discharging module; 410, discharging stage; 411, discharging wafer ring; 412, discharging tray; 420, discharging linear module; 430, positioning plate;

[0050] 500, handling module; 510, nozzle module; 511, first nozzle; 512, first handling linear module; 513, second handling linear module; 514, handling rotary module; 515, nozzle calibration assembly; 516, nozzle position detection member; 5161, slot-type photoelectric switch; 5162, detection sheet; 517, third handling linear module; 521, loading nozzle module; 522, unloading nozzle module;

[0051] 600, pre-scan module; 610, pre-scan camera; 620, pre-scan light source; 630, pre-scan adjustment screw; 640, pre-scan linear module;

[0052] 710, upward shooting module for loading materials; 711, upward shooting camera for loading materials; 712, upward shooting light source for loading materials; 713, upward shooting adjustment screw for loading materials; 714, linear module for loading materials; 720, upward shooting module for unloading materials; 721, upward shooting camera for unloading materials; 722, upward shooting light source for unloading materials; 723, upward shooting adjustment screw for unloading materials; 724, linear module for unloading materials;

[0053] 800, flip module; 810, second suction nozzle; 820, flip rotation module; 830, first flip linear module; 840, second flip linear module; 850, flip support module;

[0054] 900, material discharging detection module; 910, material discharging camera; 920, material discharging detection light source; 930, first material discharging detection linear module; 940, second material discharging detection linear module. DETAILED DESCRIPTION

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0058] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0059] In the following embodiments, to facilitate understanding of the drawings, a direction parallel to the rotation and placement module 210 is parallel to the XY plane in any diagram, and a direction perpendicular to the rotation and placement module 210 is perpendicular to the Z direction in any diagram.

[0060] Combination Figure 1 , Figure 2 , Figures 11 to 14As shown, the optical waveguide sheet detection and sorting device according to the embodiment of the present invention is used to detect optical waveguide sheets. The optical waveguide sheet detection and sorting device includes a frame 100, an optical waveguide sheet detection mechanism 200, a feeding module 300, a discharging module 400 and a handling module 500; the optical waveguide sheet detection mechanism 200 includes a rotating placement module 210 and a first shooting detection module 220, the rotating placement module 210 is connected to the frame 100, and the rotating placement module 210 is provided with a placement through hole 2111, and the inner wall of the placement through hole 2111 is extended to the middle of the placement through hole 2111 with a support portion 2112, and the support portion 2110 is provided with a first shooting detection module 220. 12 is used to support the optical waveguide sheet; the first shooting and detection module 220 is connected to the frame 100, and the first shooting and detection module 220 includes a first detection camera 221 and a first longitudinal linear module 224. The first detection camera 221 is arranged above the placement through hole 2111, and the depth of field distance of the first detection camera 221 is less than the thickness of the optical waveguide sheet. The first detection camera 221 is used to capture the image of the first side of the optical waveguide sheet, and move a preset distance toward the direction close to the optical waveguide sheet under the drive of the first longitudinal linear module 224 to capture a partial or full image of the second side of the optical waveguide sheet through the optical waveguide sheet. The feeding module 300 is arranged upstream of the optical waveguide sheet detection mechanism 200. The feeding module 300 includes a feeding platform 310 and an ejector module 320. The feeding platform 310 is provided with a first mounting position, and the first mounting position is used to mount a feeding wafer ring 311. The feeding wafer ring 311 is suitable for carrying the optical waveguide sheet to be detected. The feeding platform 310 is connected to the frame 100 and is arranged above the ejector module 320. The unloading module 400 is connected to the frame 100 and is located downstream of the optical waveguide sheet detection mechanism 200; the transport module 500 is connected to the feeding module 300, the optical waveguide sheet detection mechanism 200 and the unloading module 400.

[0061] It should be noted that the optical waveguide is light-transmissive, generally thin and has a large number of inspection dimensions. Conventional single-sided inspection solutions require multiple suction and movement of the optical waveguide to complete double-sided inspection, increasing the risk of damage to the optical waveguide.

[0062] According to the optical waveguide sheet inspection and sorting equipment of the embodiment of the present invention, the optical waveguide sheet to be inspected is usually placed on the feed wafer ring 311, the staff installs the feed wafer ring 311 on the first installation position of the feed carrier 310, the transport module 500 moves to above the feed wafer ring 311, the ejector module 320 lifts the optical waveguide sheet from the feed wafer ring 311, the transport module 500 transports the optical waveguide sheet and moves it to the placement through hole 2111, the first inspection camera 221 completes the inspection of the optical waveguide sheet, and the transport module 500 transports the inspected optical waveguide sheet to the discharging module 400, thereby realizing the automatic inspection of the optical waveguide sheet.

[0063] It can be understood that the images acquired by the first detection camera 221 at a certain distance on both sides of the focus point are clear, and this distance is the depth of field distance of the first detection camera 221. Due to the light transmittance of the optical waveguide sheet, when the depth of field distance is greater than the thickness of the optical waveguide sheet, the first surface and the second surface of the optical waveguide sheet may exist simultaneously within the depth of field range of the first detection camera 221. The first detection camera 221 captures an image in which the first surface and the second surface of the optical waveguide sheet overlap, affecting the detection effect of the defect position of the optical waveguide sheet.

[0064] In this embodiment, when the optical waveguide sheet detection mechanism 200 performs detection, the optical waveguide sheet is placed on the support portion 2112 of the rotating placement module 210 for support, and the optical waveguide sheet detection mechanism controls the first longitudinal linear module 224 to drive the first detection camera 221 to approach or move away from the optical waveguide sheet until the upper surface of the optical waveguide sheet enters the depth of field of the first detection camera 221 (i.e., the focus point is adjusted), and the first detection camera 221 captures an image of the upper surface (the captured upper surface image is a clear image). After the upper surface image is captured, the first detection camera 221 moves downward by a preset distance (e.g., a distance equal to the thickness of the optical waveguide sheet) until the lower surface of the optical waveguide sheet enters the depth of field of the first detection camera 221 (i.e., the focus point is adjusted), and captures an image of the lower surface (wherein, the image of the lower surface may be a partial image, specifically, the partial image may be an image of a partial range on the optical waveguide sheet blocked by the support portion 2112; of course, the image of the lower surface may also be the entire image of the lower surface) to achieve double-sided detection of the optical waveguide sheet.

[0065] Furthermore, the first detection camera 221 may use a lens with a medium magnification (magnification between 2 and 10 times, such as 4, 5 or 6 times). The greater the magnification, the clearer the details of the captured image. Generally speaking, the greater the magnification of the lens, the smaller the depth of field. In practical applications, a lens with a depth of field less than 1 / n of the thickness of the optical waveguide sheet may be selected, for example, the depth of field is less than 1 / 5 of the thickness of the optical waveguide sheet; or, the depth of field is less than 1 / 4 of the thickness of the optical waveguide sheet; or, the depth of field is less than 1 / 2 of the thickness of the optical waveguide sheet.

[0066] The depth of field distance of the first detection camera 221 is smaller than the thickness of the optical waveguide sheet. When shooting an image, the first and second surfaces of the optical waveguide sheet will not fall into the depth of field range of the first detection camera 221 at the same time. That is, when the first detection camera 221 shoots the first or second surface of the optical waveguide sheet, it can only obtain a clear image of the corresponding surface. In view of the light transmittance of the optical waveguide sheet, when only a single first detection camera 221 is used to shoot from one side of the optical waveguide sheet, clear images of the first and second surfaces of the optical waveguide sheet can be effectively obtained by moving the first detection camera 221 to control the change of the focus. The entire detection process does not require repeated transportation or turning over of the optical waveguide sheet, which effectively avoids damage to the optical waveguide sheet during transportation or turning over.

[0067] In this embodiment, combined with Figure 3 As shown, the ejector module 320 includes an ejector 321, an ejector straight portion 322 extending in a direction perpendicular to the rotation placement module 210 (Z direction), a first ejector adjustment portion 323, and a second ejector adjustment portion 324. The free end of the ejector straight portion 322 is connected to the ejector 321, and the fixed end of the ejector straight portion 322 is connected to the frame 100. The first ejector adjustment portion 323 and the second ejector adjustment portion 324 are parallel to the rotation placement module 210 (parallel to the XY plane) and are arranged at an angle. The first ejector adjustment portion 323 and the second ejector adjustment portion 324 are used to adjust the position of the ejector straight portion 322 relative to the frame 100 to ensure that the optical waveguide sheet lifted by the ejector 321 is within the operating range of the transport module 500; the ejector straight portion 322 can drive the ejector 321 to move along the Z direction shown in the figure to lift the expansion film of the feed wafer ring 311 upward.

[0068] In this embodiment, the first ejector adjustment portion 323 and the second ejector adjustment portion 324 are arranged at 90 degrees, and of course they can also be arranged at other angles; the ejector straight portion 322 can adopt a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0069] In this embodiment, the first longitudinal linear module 224 can be a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0070] In this embodiment, the preset distance that the first detection camera 221 moves downward is equal to the thickness of the optical waveguide sheet. The optical waveguide sheet detection mechanism does not need to adjust the moving distance of the first detection camera 221 for each optical waveguide sheet to be detected, but only needs to adjust the preset distance for different types of optical waveguide sheets (corresponding to different thicknesses), which effectively improves the debugging efficiency of the optical waveguide sheet detection mechanism. Of course, in other embodiments, the preset distance can also be set by the staff according to the use requirements. It should be noted that the first detection camera 221 can capture clear images within the depth of field range, so the depth of field distance of the first detection camera 221 can adapt to optical waveguide sheets of different thicknesses to a certain extent.

[0071] In some embodiments, in combination Figure 1 and Figure 2 As shown, the feeding platform 310 is provided with a second mounting position, and the second mounting position is used to mount a feeding tray 312, and the feeding tray 312 is suitable for carrying the optical waveguide sheet to be detected.

[0072] It should be noted that in the prior art, manufacturers have various ways of receiving optical waveguide sheets, currently mainly wafer rings and trays, while existing mainstream testing equipment is often only suitable for a single method of receiving materials and cannot be compatible.

[0073] In this embodiment, by providing the material feeding platform 310 with a first mounting position and a second mounting position, effective adaptation to different material supply modes is achieved, thereby improving the use flexibility of the optical waveguide sheet detection and sorting equipment.

[0074] In this embodiment, combined with Figure 2 As shown, the figure is an exploded view, and the feed wafer ring 311 and the feed loading tray 312 are only used for illustration. It can be understood that in actual use, the feed wafer ring 311 or the feed loading tray 312 needs to be connected to the feed carrier 310; the feed carrier 310 is a circular ring table, and the inner circle of the circular ring table avoids the movement of the ejector pin 321 on the ejector pin module 320. The upper surface of the feed carrier 310 is provided with a first mounting position which is connected to the feed wafer ring 311. The circular ring table has four grooves on its upper surface around the center for placing the four corners of the rectangular feed loading tray 312, and the four grooves constitute the second mounting position; of course, the first mounting position and the second mounting position can also be set separately, such as independently opening a circular groove as the first mounting position and independently opening a rectangular groove as the second mounting position.

[0075] In some embodiments, in combination Figure 1 , Figure 2 and Figure 4 As shown, the optical waveguide sheet detection and sorting device further includes a pre-scan module 600 connected to the frame 100, the pre-scan module 600 includes a pre-scan camera 610, the pre-scan camera 610 is located above the feeding module 300, the detection field of the pre-scan camera 610 is oriented toward the feeding module 300, and is used to detect the position of the optical waveguide sheet; the feeding module 300 further includes a first feeding linear module 340, a second feeding linear module 350 and a feeding rotary module 360, the first feeding linear module 340 and the second feeding linear module The extension direction of group 350 is parallel to the rotating placement module 210 and there is an angle between the two. The fixed end of the first feeding linear module 340 is connected to the frame 100, the free end of the first feeding linear module 340 is connected to the fixed end of the second feeding linear module 350, the free end of the second feeding linear module 350 is connected to the fixed end of the feeding rotation module 360, the free end of the feeding rotation module 360 ​​is connected to the feeding platform 310 and the rotation axis of the feeding rotation module 360 ​​is perpendicular to the rotating placement module 210.

[0076] It should be noted that in the process of moving the optical waveguide sheet by the transport module 500, there are certain requirements for the placement angle of the optical waveguide sheet between the upstream and downstream modules (for example, when the optical waveguide sheet is moved from the feeding module 300 to the optical waveguide sheet detection mechanism 200, the optical waveguide sheet needs to be arranged along the X direction in the figure to ensure that the optical waveguide sheet can be directly placed in the placement through hole 2111).

[0077] In this embodiment, the pre-scan camera 610 pre-scans the optical waveguide sheets on the feeding stage 310, and determines the distance offset and angle offset of each optical waveguide sheet based on the captured image. The first feeding linear module 340 and the second feeding linear module 350 control the movement of the optical waveguide sheets on the XY plane to offset the distance offset. The feeding rotation module 360 ​​rotates the feeding stage 310 so that the angle of each optical waveguide sheet after rotation corresponds to the placement angle required by the downstream module to eliminate the angle offset, thereby effectively ensuring the uniformity between the optical waveguide sheets in the same batch and improving the detection efficiency.

[0078] In this embodiment, the pre-scan module 600 further includes a pre-scan light source 620 , which is used to supplement light and improve the clarity of the image captured by the pre-scan camera 610 .

[0079] In this embodiment, the first feeding linear module 340 and the second feeding linear module 350 can adopt slide modules, movable screw modules, cylinders, etc., and the feeding rotary module 360 ​​can adopt stepper motors, servo motors, etc., without limitation here.

[0080] In some embodiments, in combination Figure 1 and Figure 4 As shown, the pre-scan module 600 also includes a pre-scan linear module 640 , the free end of the pre-scan linear module 640 is connected to the pre-scan camera 610 , the fixed end of the pre-scan linear module 640 is connected to the frame 100 , and the pre-scan linear module 640 extends in a direction perpendicular to the rotating placement module 210 .

[0081] The pre-scan linear module 640 drives the pre-scan camera 610 to move, and the focus point of the pre-scan camera 610 can be adjusted to accurately focus on the optical waveguide.

[0082] In this embodiment, the pre-scan module 600 also includes a pre-scan adjustment screw 630, which passes through the fixed end of the pre-scan linear module 640 and is connected to the free end of the pre-scan linear module 640. By rotating the pre-scan adjustment screw 630, the pre-scan camera 610 is relatively fixed to the frame 100 after reaching the focusing position.

[0083] In this embodiment, the pre-scanning linear module 640 can adopt a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0084] In some embodiments, in combination Figure 1 , Figure 5 and Figure 6As shown, the transport module 500 includes at least one suction nozzle module 510, the suction nozzle module 510 includes a first suction nozzle 511, the suction nozzle module 510 is connected to the frame 100, and the first suction nozzle 511 can move relative to the frame 100; the suction nozzle module 510 also includes a first transport linear module 512, a second transport linear module 513, a third transport linear module 517 and a transport rotation module 514, the extension directions of the first transport linear module 512 and the second transport linear module 513 are parallel to the rotation placement module 210 and there is an angle between the two, and the third transport linear module 517 is parallel to the rotation placement module 210. The linear module 517 extends in a direction perpendicular to the rotating placement module 210, the fixed end of the first transport linear module 512 is connected to the frame 100, the free end of the first transport linear module 512 is connected to the fixed end of the second transport linear module 513, the free end of the second transport linear module 513 is connected to the fixed end of the third transport linear module 517, the free end of the third transport linear module 517 is connected to the fixed end of the transport rotary module 514, the free end of the transport rotary module 514 is connected to the first suction nozzle 511 and the rotation axis of the transport rotary module 514 is perpendicular to the rotating placement module 210.

[0085] It can be understood that during the process of the first suction nozzle 511 sucking the optical waveguide sheet, due to the influence of the vacuum airflow, the optical waveguide sheet sucked by the first suction nozzle 511 may have a certain angle deviation compared to before suction. The first suction nozzle 511 is driven to rotate by setting the conveying rotation module 514 to compensate for the angle deviation of the optical waveguide sheet, thereby ensuring that the optical waveguide sheet on the first suction nozzle 511 corresponds to the placement through hole 2111, so that the optical waveguide sheet detection and sorting equipment can accurately place the optical waveguide sheet on the downstream module (such as the rotating placement module 210, the discharge module 400, etc.) only through the first conveying linear module 512, the second conveying linear module 513, and the third conveying linear module 517, without using a high-precision moving mechanism like a multi-axis robotic arm, thereby effectively reducing the cost of the optical waveguide sheet detection and sorting equipment.

[0086] In this embodiment, combined with Figure 5 As shown, the first transport linear module 512 is arranged along the X direction, the second transport linear module 513 is arranged along the Y direction, and the third transport linear module 517 is arranged along the Z direction. The combination of the three realizes the translation of the suction nozzle in three-dimensional space, and combines with the transport rotation module 514 to realize the rotation on the XY plane. In other embodiments, the angle between the first transport linear module 512 and the second transport linear module 513 may not be ninety degrees, and the angle formed can realize the free movement of the first suction nozzle 511 on the plane.

[0087] In this embodiment, the first transport linear module 512, the second transport linear module 513 and the third transport linear module 517 can adopt slide modules, movable screw modules, cylinders, etc.; the transport rotary module 514 can adopt stepper motors, servo motors, etc., which are not limited here.

[0088] In this embodiment, combined with Figure 5 and Figure 6 As shown, the nozzle module 510 also includes a nozzle position detection component 516, which is used to detect the position of the nozzle, so as to achieve precise control of the downward pressure height of the first nozzle 511, so as to prevent the optical waveguide sheet from being crushed or damaged when the optical waveguide sheet is adsorbed and carried multiple times; the nozzle position detection component 516 can be in the form of a slot-type photoelectric switch 5161 and a detection sheet 5162, one end of the detection sheet 5162 is relatively fixed to the first nozzle 511, and the other end is inserted into the slot of the slot-type photoelectric switch 5161. When the first nozzle 511 presses down the optical waveguide sheet, the detection sheet 5162 moves with the pushed first nozzle 511, triggering the slot-type photoelectric switch 5161 to alarm and stop pressing down the optical waveguide sheet.

[0089] In other embodiments, the nozzle position detection element 516 may also be a laser distance detection element (to detect the moving distance of the first nozzle 511 ), a pressure sensor (to detect the pressure of the first nozzle 511 ), etc.

[0090] In other embodiments, the transport module 500 may also adopt other transport forms, such as non-contact transport, such as magnetic levitation, electrostatic levitation, electromagnetic levitation, light particle levitation, sound wave levitation, etc.

[0091] In some embodiments, in combination Figure 1 As shown, the transport module 500 includes two nozzle modules 510, which are respectively a loading nozzle module 521 and a unloading nozzle module 522; the first nozzle 511 of the loading nozzle module 521 is suitable for transporting the optical waveguide sheet of the feeding module 300 to the optical waveguide sheet detection mechanism 200; the first nozzle 511 of the unloading nozzle module 522 is suitable for transporting the optical waveguide sheet of the optical waveguide sheet detection mechanism 200 to the discharging module 400.

[0092] In this embodiment, the first suction nozzle 511 of the loading suction nozzle module 521 sucks the optical waveguide sheet to be inspected from the feeding module 300 and moves it to the rotating placement module 210 for inspection. While the loading suction nozzle module 521 is loading, the first suction nozzle 511 of the unloading suction nozzle module 522 sucks the optical waveguide sheet that has been inspected from the rotating placement module 210 and moves it to the unloading module 400.

[0093] In this embodiment, the loading process of the loading nozzle module 521 and the unloading process of the unloading nozzle module 522 do not affect each other, which effectively improves the loading and unloading efficiency of the optical waveguide sheet.

[0094] In this embodiment, the loading nozzle module 521 and the unloading nozzle module 522 realize independent movement in the three-axis directions of XYZ by a closed-loop control system, so as to achieve high-speed and high-precision loading and unloading of the optical waveguide.

[0095] Of course, in other embodiments, a greater number of nozzle modules 510 may be provided.

[0096] In some embodiments, in combination Figure 1 , Figure 5 and Figure 7 As shown, the optical waveguide sheet detection and sorting equipment also includes a loading and shooting module 710, which includes a loading and shooting camera 711. The loading and shooting module 710 is connected to the frame 100, and the loading and shooting camera 711 is arranged between the feeding module 300 and the optical waveguide sheet detection mechanism 200. The loading and shooting camera 711 is suitable for capturing the image of the optical waveguide sheet adsorbed by the loading nozzle module 521.

[0097] As mentioned above, when the transport module 500 moves the optical waveguide, there are certain requirements for the placement angle of the optical waveguide between the upstream and downstream modules. When the first suction nozzle 511 adsorbs the optical waveguide, the vacuum airflow will cause the optical waveguide to have an angle deviation.

[0098] In this embodiment, the first suction nozzle 511 of the loading suction nozzle module 521 sucks the optical waveguide sheet to be inspected from the feeding module 300 and moves to above the loading overhead camera 710, and the loading overhead camera 711 photographs the optical waveguide sheet on the first suction nozzle 511, and determines the distance offset and angle offset of the optical waveguide sheet based on the photographed image, and the first transport linear module 512 and the second transport linear module 513 control the movement of the optical waveguide sheet on the XY plane to offset the distance offset, and the transport rotation module 514 rotates the first suction nozzle 511 so that the angle of the optical waveguide sheet after rotation corresponds to the placement angle required by the downstream module to eliminate the angle offset, effectively ensuring the uniformity between the optical waveguide sheets of the same batch and improving the detection efficiency. After the adjustment of the optical waveguide sheet is completed, the first suction nozzle 511 moves the optical waveguide sheet to be inspected to the optical waveguide sheet detection mechanism 200.

[0099] In this embodiment, the loading and shooting module 710 also includes a loading and shooting light source 712, which is arranged above the loading and shooting camera 711 to supplement light and improve the clarity of the image taken by the loading and shooting camera 711.

[0100] In this embodiment, the loading and shooting module 710 further includes a loading linear module 714, the free end of which is connected to the loading and shooting camera 711, the fixed end of which is connected to the frame 100, and the loading linear module 714 extends in a direction perpendicular to the rotation placement module 210. The loading and shooting camera 711 is driven to move by the loading linear module 714, and the focus of the loading and shooting camera 711 can be adjusted to accurately focus on the optical waveguide.

[0101] In this embodiment, the loading and upward shooting module 710 also includes a loading and upward shooting adjustment screw 713, which passes through the fixed end of the loading and upward shooting linear module 714 and is connected to the free end of the loading and upward shooting linear module 714. By rotating the loading and upward shooting adjustment screw 713, the loading and upward shooting camera 711 is relatively fixed to the frame 100 after reaching the focusing position.

[0102] In this embodiment, the feeding linear module 714 can adopt a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0103] In one embodiment, in combination Figure 1 , Figure 5 and Figure 7 As shown, the optical waveguide sheet detection and sorting equipment also includes a material unloading overhead shooting module 720, and the material unloading overhead shooting module 720 includes a material unloading overhead shooting camera 721. The material unloading overhead shooting module 720 is connected to the frame 100, and the material unloading overhead shooting camera 721 is arranged between the optical waveguide sheet detection mechanism 200 and the discharge module 400. The material unloading overhead shooting camera 721 is suitable for capturing the image of the optical waveguide sheet adsorbed by the unloading nozzle module 522.

[0104] In this embodiment, the first suction nozzle 511 of the unloading suction nozzle module 522 sucks the optical waveguide sheet that has been inspected from the rotating placement module 210 and moves to the unloading overhead shooting module 720. The unloading overhead shooting camera 721 photographs the optical waveguide sheet on the first suction nozzle 511, and determines the distance offset and angle offset of the optical waveguide sheet based on the photographed image. The first transport linear module 512 and the second transport linear module 513 control the movement of the optical waveguide sheet on the XY plane to offset the distance offset. The transport rotating module 514 rotates the first suction nozzle 511 so that the angle of the optical waveguide sheet after rotation corresponds to the placement angle required by the downstream module to eliminate the angle offset, thereby effectively ensuring the uniformity between the optical waveguide sheets of the same batch and improving the inspection efficiency. After the adjustment of the optical waveguide sheet is completed, the first suction nozzle 511 continues to move to move the optical waveguide sheet that has been inspected to the unloading module 400.

[0105] In this embodiment, the unloading overhead shooting module 720 also includes an unloading overhead shooting light source 722, which is arranged above the unloading overhead shooting camera 721 to supplement light and improve the clarity of the image taken by the unloading overhead shooting camera 721.

[0106] In this embodiment, the blanking and overhead shooting module 720 further includes a blanking linear module 724, a free end of the blanking linear module 724 is connected to the blanking and overhead shooting camera 721, a fixed end of the blanking linear module 724 is connected to the frame 100, and the blanking linear module 724 extends in a direction perpendicular to the rotation placement module 210. The blanking and overhead shooting camera 721 is driven to move by the blanking linear module 724, and the focus of the blanking and overhead shooting camera 721 can be adjusted to accurately focus on the optical waveguide sheet.

[0107] In this embodiment, the unloading upward shooting module 720 also includes an unloading upward shooting adjustment screw 723, which passes through the fixed end of the unloading linear module 724 and is connected to the free end of the unloading linear module 724. By rotating the unloading upward shooting adjustment screw 723, the unloading upward shooting camera 721 is relatively fixed to the frame 100 after reaching the focusing position.

[0108] In this embodiment, the blanking linear module 724 can adopt a slide module, a movable screw module, a cylinder, etc., and there is no limitation here.

[0109] Of course, in one embodiment, the optical waveguide sheet inspection and sorting device can be provided with a loading overhead shooting module 710 and an unloading overhead shooting module 720 at the same time to ensure the stability and efficiency of the loading and unloading processes of the optical waveguide sheet inspection and sorting device.

[0110] In the above three embodiments, combined Figure 1 and Figure 5 As shown, the nozzle module 510 also includes a nozzle calibration component 515. Taking the loading nozzle module 521 as an example, the nozzle calibration component 515 is fixedly connected to the third transport linear module 517. During the debugging stage of the optical waveguide detection and sorting equipment, the loading overhead camera 711 photographs the position of the calibration block. Since the nozzle calibration component 515 is fixed relative to the first nozzle 511 and the transport rotating module 514 as a whole, the position of the first nozzle 511 in the XY plane can be determined to achieve calibration of the position of the first nozzle 511, which is convenient for initializing compensation for the movement error of the first nozzle 511.

[0111] In some embodiments, in combination Figure 1 , Figure 5 and Figure 8As shown, the optical waveguide sheet detection and sorting equipment also includes a flip module 800, and the flip module 800 includes a second suction nozzle 810 and a flip rotation module 820. The second suction nozzle 810 is connected to the free end of the flip rotation module 820, and the fixed end of the flip rotation module 820 is movably connected to the frame 100, and the rotation axis of the flip rotation module 820 is parallel to the rotation placement module 210; the second suction nozzle 810 is suitable for switching between a flip material picking state and a flip material feeding state. The flip material picking state is a state in which the second suction nozzle 810 is located above the optical waveguide sheet detection mechanism 200 to adsorb the optical waveguide sheet after inspection; the flip material feeding state is a state in which the second suction nozzle 810 adsorbs the optical waveguide sheet after inspection and flips the optical waveguide sheet 180 degrees; the conveying module 500 can convey the optical waveguide sheet on the second suction nozzle 810 in the flip feeding state and move it to the discharge module 400.

[0112] In this embodiment, when the staff needs to flip the optical waveguide sheet (for example, flip the optical waveguide sheet with defects on the lower surface of the optical waveguide sheet in the rotating placement module 210 to facilitate manual inspection of the defects of the optical waveguide sheet), the second suction nozzle 810 of the flipping module 800 moves to the top of the optical waveguide sheet detection mechanism 200, and sucks the optical waveguide sheet after detection in the flipping material taking state, and then switches from the flipping material taking state to the flipping material feeding state, flips the sucked optical waveguide sheet by 180 degrees, and then the transport module 500 moves to the top of the second suction nozzle 810 to transport the optical waveguide sheet and transfer it to the unloading module 400. By setting the flipping module 800, the position of the optical waveguide sheet can be flexibly adjusted, effectively adapting to different usage requirements.

[0113] In this embodiment, combined with Figure 1 and Figure 8 As shown, the flip module 800 also includes a first flip linear module 830 and a second flip linear module 840. The first flip linear module 830 is arranged parallel to the horizontal plane, and the extension direction of the second flip linear module 840 is perpendicular to the rotation placement module 210. The fixed end of the first flip linear module 830 is connected to the frame 100, the free end of the first flip linear module 830 is connected to the fixed end of the second flip linear module 840, and the free end of the second flip linear module 840 is connected to the flip rotation module 820. The movement of the second suction nozzle 810 is realized by the first flip linear module 830 and the second flip linear module 840 to absorb the optical waveguide sheet on the material taking and placing station 2113.

[0114] In this embodiment, combined with Figure 8As shown, the flip module 800 further includes a flip support module 850, which is disposed below the flip rotation module 820. The fixed end of the flip support module 850 is connected to the free end of the first flip linear module 830. The free end of the flip support module 850 is adapted to switch between a supporting state and a non-supporting state. In the supporting state, the free end of the flip support module 850 pushes and supports the free end of the flip rotation module 820. In the non-supporting state, the free end of the flip support module 850 avoids the free end of the flip rotation module 820. Through the flip support module 850, the second suction nozzle 810 connected to the flip rotation module 820 can stably cooperate with the transport module 500 to complete the transfer of the optical waveguide sheet in the flip feeding state, thereby improving production efficiency.

[0115] In this embodiment, the first flip linear module 830, the second flip linear module 840 and the flip support module 850 can adopt slide modules, moving screw modules, cylinders, etc.; the flip rotation module 820 can adopt stepper motors, servo motors, etc., which are not limited here.

[0116] In some embodiments, in combination Figure 1 and Fig. 9 As shown, the discharging module 400 includes a discharging platform 410 .

[0117] In one embodiment, in combination Fig. 9 As shown, the unloading stage 410 is installed with at least two unloading wafer rings 411 , and different unloading wafer rings 411 are used to place optical waveguide sheets of different qualities.

[0118] In this embodiment, the discharge platform 410 is equipped with two discharge wafer rings 411, which are respectively used to place qualified optical waveguide sheets and unqualified optical waveguide sheets. Furthermore, different areas can be set in the discharge wafer ring 411 for placing unqualified optical waveguide sheets, and each area integrates optical waveguide sheets with the same type of defects, thereby achieving efficient feedback on the production quality of the optical waveguide sheets, facilitating process improvement, and improving production quality.

[0119] Of course, instead of setting partitions on a single discharge wafer ring 411 , multiple discharge wafer rings 411 corresponding to each other may be set for optical waveguides with different defect types.

[0120] In one embodiment, in combination Fig. 9 As shown, the unloading platform 410 is equipped with at least two unloading trays 412. Different unloading trays 412 are used to place optical waveguides of different qualities. The unloading trays 412 in this embodiment have the same effect as the unloading wafer ring 411 in the previous embodiment, and will not be described again here.

[0121] In the above two embodiments, combined Fig. 9As shown, multiple discharge wafer rings 411 or multiple discharge material trays 412 can be pre-installed on the positioning plate 430, and the positioning plate 430 is connected to the discharge platform 410 to reduce the installation and debugging time; of course, installation positions can also be set on the discharge platform 410 for independent discharge wafer rings 411 or discharge material trays 412, and the specific form can refer to the structural form of the first installation position and the second installation position in the feeding module 300.

[0122] In the above two embodiments, the discharge module 400 also includes a discharge linear module 420, the fixed end of the discharge linear module 420 is connected to the frame 100, and the free end of the discharge linear module 420 is connected to the discharge loading plate 412 or the discharge wafer ring 411 to drive the discharge platform 410 to move relative to the frame 100, so that the discharge platform 410 adapts to the activity range of the transport module 500; in this embodiment, the discharge linear module 420 can adopt a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0123] In some embodiments, in combination Figure 1 and Fig.10 As shown, the optical waveguide sheet detection and sorting equipment also includes a discharge detection module 900, and the discharge detection module 900 includes a discharge camera 910. The discharge detection module 900 is connected to the frame 100, and the discharge camera 910 is located above the discharge module 400. The detection field of the discharge camera 910 is toward the discharge module 400, and is used to detect the position of the optical waveguide sheet on the discharge module 400.

[0124] In this embodiment, the discharging camera 910 is used to obtain a captured image of the optical waveguide sheet on the discharging module 400, and based on the captured image, it is determined whether the optical waveguide sheet is stably placed and the position information of each optical waveguide sheet (which may include the orientation and angle offset on the XY plane, etc.), to ensure that each optical waveguide sheet is stably placed in the discharging module 400.

[0125] In this embodiment, the material discharging detection module 900 further includes a material discharging detection light source 920 , which is used to supplement light and improve the clarity of images captured by the material discharging camera 910 .

[0126] In this embodiment, the discharge detection module 900 further includes a first discharge detection linear module 930 and a second discharge detection linear module 940. The extension direction of the first discharge detection linear module 930 is parallel to the rotation placement module 210, and the extension direction of the second discharge detection linear module 940 is perpendicular to the rotation placement module 210. The fixed end of the first discharge detection linear module 930 is connected to the frame 100, the free end of the first discharge detection linear module 930 is connected to the fixed end of the second discharge detection linear module 940, and the free end of the second discharge detection linear module 940 is connected to the discharge camera 910. In order to realize the movement of the discharge camera 910 in the X direction and the Z direction, expand the coverage of the discharge camera 910, and adapt to discharge wafer rings 411 or discharge material trays 412 of different types and sizes.

[0127] In some embodiments, the nozzle module 510 further includes a negative pressure gauge (not shown in the figure), the two ends of which are respectively connected to the first nozzle 511 and an external vacuum source, and the negative pressure gauge is used to detect the pressure value between the first nozzle 511 and the external vacuum source.

[0128] It should be noted that in the related art, a laser sensor is usually used to detect the adsorption effect between the optical waveguide sheet and the first suction nozzle 511 , which can only detect whether the optical waveguide sheet falls, and cannot timely feedback the adsorption status of the first suction nozzle 511 and the optical waveguide sheet.

[0129] In the present embodiment, by setting a negative pressure gauge, when the detection value of the negative pressure gauge exceeds the set value range, it can be accurately determined that the optical waveguide is not adsorbed on the first suction nozzle 511. At the same time, when the detection value is within the set value range but the value is closer to the end value of the set value range, it can be determined that the first suction nozzle 511 or the pipeline connecting the first suction nozzle 511 and the external vacuum source is partially blocked. Therefore, the optical waveguide detection and sorting equipment can prompt the staff to deal with it in time based on the detection value to ensure the stable operation of the equipment.

[0130] In some embodiments, in combination Fig.11 As shown, the first shooting and detecting module 220 also includes a first transverse linear module 223 , and the first detecting camera 221 is used to move along the length direction of the placement through hole 2111 under the drive of the first transverse linear module 223 to adjust the shooting area of ​​the first detecting camera 221 .

[0131] In this embodiment, the first detection camera 221 is connected to the first longitudinal linear module 224 via the first transverse linear module 223, the free end of the first transverse linear module 223 is connected to the first detection camera 221, the fixed end of the first transverse linear module 223 is connected to the free end of the first longitudinal linear module 224, and the moving direction of the free end of the first transverse linear module 223 is the same as the length direction of the optical waveguide sheet corresponding to the first shooting detection module 220. In other embodiments, it can also be configured that the first longitudinal linear module 224 is connected to the frame 100 via the first transverse linear module 223, in which case the first transverse linear module 223 drives the first detection camera and the first longitudinal linear module 224 to move as a whole.

[0132] It can be understood that the greater the magnification of the camera, the clearer the details of the captured image are displayed, but the field of view is smaller. In this embodiment, the first detection camera 221 can be moved relative to the optical waveguide sheet driven by the first horizontal linear module 223. The first detection camera 221 can shoot the optical waveguide sheet multiple times along the moving direction of the first horizontal linear module 223 to obtain partial images of multiple optical waveguide sheets. By combining multiple partial images into an image of a complete optical waveguide sheet, higher clarity can be obtained, thereby effectively improving the detection accuracy of the optical waveguide sheet.

[0133] Furthermore, when the multiple local images acquired by the first detection camera 221 have overlapping areas, the multiple local images can be synthesized into an overall image of the optical waveguide plate, so as to facilitate subsequent manual re-inspection of the optical waveguide plate by combining the synthesized overall image; of course, the multiple local images acquired by the first detection camera 221 can also be discontinuous, such as taking pictures and spot checks on key defect areas of the optical waveguide plate.

[0134] Furthermore, the number of local images obtained by the first detection camera 221 on the first and second surfaces of the optical waveguide plate may be inconsistent. For example, the first detection camera 221 may obtain continuous local images on the first surface of the optical waveguide plate, while only obtaining images of the local range blocked by the support portion 2112 on the second surface of the optical waveguide plate.

[0135] In this embodiment, the first transverse linear module 223 can be a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0136] In this embodiment, the first detection camera 221, driven by the first horizontal linear module 223, takes 5 partial images of the optical waveguide sheet to synthesize an overall image; of course, based on the size of the detection field of view of the first detection camera 221 and the size of the optical waveguide sheet, the number of shots of the first detection camera 221 and the position of the acquired partial image can be adaptively adjusted.

[0137] In some embodiments, in combination Figures 11 to 14As shown, the rotating placement module 210 includes a base 212 and a rotating placement table 211. The base 212 is connected to the frame 100. The rotating placement table 211 is rotatably mounted on the base 212. The placement through hole 2111 is arranged on the rotating placement table 211, and the number of the placement through holes 2111 is multiple. The position of the first detection camera 221 is adapted to one of the multiple placement through holes 2111.

[0138] In this embodiment, Fig.12 and Fig.13 As shown, four placement through holes 2111 are arranged on the rotating placement table 211. As the rotating placement table 211 rotates, the placement through holes 2111 can be rotated and switched between positions. By setting the first detection camera 221 above one of the placement through holes 2111, the remaining placement through holes 2111 can be used for other work processes. For example, the placement through hole 2111 before the placement through hole 2111 corresponding to the first detection camera 221 can be used as a material picking and placing station, so that the image shooting process of the first detection camera 221 and the material picking and placing process of other optical waveguide sheets are carried out synchronously, thereby effectively improving the detection efficiency of the optical waveguide sheet detection mechanism.

[0139] In this embodiment, the remaining two of the four placement through holes 2111 will be described in detail later. Of course, the number of placement through holes 2111 can be adjusted based on actual needs. For example, three placement through holes 2111 are set, and the three placement through holes 2111 are symmetrically spaced one hundred and twenty degrees around the rotation axis of the rotating placement table 211. A larger number of placement through holes 2111 can also be set, such as five placement through holes 2111. More placement through holes 2111 can adapt to more work processes. For example, in this embodiment, in addition to the placement through holes 2111 corresponding to the first inspection camera 221 and the placement through holes 2111 of the material loading and unloading station, other inspection equipment can be set on other placement through holes 2111, such as an appearance inspection camera for appearance re-inspection.

[0140] In some embodiments, in combination Figures 11 to 14 As shown, the optical waveguide sheet detection mechanism also includes a second shooting detection module 230, and the second shooting detection module 230 includes a second detection camera 231. The position of the second detection camera 231 is adapted to one of the multiple placement through holes 2111 and is located below the placement through hole 2111.

[0141] In this embodiment, for the convenience of description, different placement through holes 2111 on the rotating placement table 211 are distinguished as different workstations. Fig.12 and Fig.13As shown, in this embodiment, four placement through holes 2111 are provided on the rotating placement table 211, three of which correspond to the material loading and unloading station, the overhead inspection station and the overhead inspection station. The optical waveguide sheet to be inspected is first placed in the material loading and unloading station 2113, and the rotating placement table 211 rotates to rotate the optical waveguide sheet to be inspected to the overhead inspection station 2115, and the image of the upper surface and part of the lower surface (the part blocked by the support part 2112) of the optical waveguide sheet is obtained by the first inspection camera 221. After the acquisition is completed, the rotating placement table 211 continues to rotate to rotate the optical waveguide sheet to the overhead inspection station 2114, and the image of all or part of the lower surface (the part not blocked by the support part 2112) of the optical waveguide sheet is obtained by the second inspection camera 231.

[0142] In this embodiment, through the cooperation of multiple placement through holes 2111 and the second detection camera 231, the material loading and unloading process, the overhead detection process and the overhead detection process of the optical waveguide sheet can be carried out simultaneously, which greatly shortens the debugging cycle and detection time of the optical waveguide sheet detection mechanism and effectively improves the production efficiency of the optical waveguide sheet.

[0143] In this embodiment, the detection field of the second detection camera 231 does not pass through the optical waveguide sheet when taking the lower surface image, which is clearer than the partial lower surface image obtained by the first detection camera 221, thereby improving the detection accuracy. By performing comprehensive detection on the image of the lower surface of the optical waveguide sheet taken by the second detection camera 231 and the partial image of the blocked portion of the lower surface of the optical waveguide sheet taken from top to bottom by the first detection camera 221, the lower surface of the optical waveguide sheet can be comprehensively detected, which is conducive to improving the detection accuracy.

[0144] In this embodiment, the upward shooting inspection station 2114 and the downward shooting inspection station 2115 are separately provided, that is, the placement holes 2111 corresponding to the first inspection camera 221 and the second inspection camera 231 are different; of course, in other embodiments, the first inspection camera 221 and the second inspection camera 231 can also be provided to correspond to the same placement hole 2111, and can be respectively provided on the upper and lower sides of the placement hole 2111.

[0145] In the present embodiment, the four placement through holes 2111 of the optical waveguide plate detection mechanism are spaced ninety degrees apart; of course, the specific number of placement through holes 2111 can be adjusted based on different needs. For example, if only one material loading and unloading station 2113, one overhead inspection station 2114 and one downward inspection station 2115 are set, the interval between the stations is controlled to be one hundred and twenty degrees. If there are other station requirements, the number of placement through holes 2111 is increased. For example, if five placement through holes 2111 are set, the interval between each placement through hole 2111 is seventy-two degrees.

[0146] In this embodiment, combined with Fig.12 and Fig.13As shown, there are four support parts 2112, each in a group of two, and the corresponding first detection camera 221 only needs to obtain two partial lower surface images corresponding to each group of support parts 2112; of course, the number of partial lower surface images obtained by the first detection camera 221 can be adaptively adjusted for different numbers of support parts 2112.

[0147] In some embodiments, in combination Figure 1 As shown, the second shooting and detection module 230 also includes a second horizontal linear module 234, which is connected to the second detection camera 231 and is used to drive the second detection camera 231 to move along the length direction of the placement through hole 2111 to adjust the shooting area of ​​the second detection camera 231.

[0148] It can be understood that the greater the magnification of the camera, the clearer the details of the captured image are displayed, but the field of view is smaller. In this embodiment, the second detection camera 231 can be moved relative to the optical waveguide sheet driven by the second horizontal linear module 234. The second detection camera 231 can shoot the optical waveguide sheet multiple times along the moving direction of the second horizontal linear module 234 to obtain local images of multiple optical waveguide sheets. By combining multiple local images into a complete optical waveguide sheet image, higher clarity can be obtained, effectively improving the detection accuracy of the optical waveguide sheet.

[0149] Furthermore, when the multiple local images acquired by the second detection camera 231 have overlapping areas, the multiple local images can be synthesized into an overall image of the optical waveguide sheet, so as to facilitate subsequent manual re-inspection of the optical waveguide sheet by combining the synthesized overall image; of course, the multiple local images acquired by the second detection camera 231 can also be discontinuous, and key defect areas of the optical waveguide sheet can be photographed and inspected.

[0150] In this embodiment, the second transverse linear module 234 can be a slide module, a movable screw module, a cylinder, etc., which is not limited here.

[0151] In this embodiment, the second detection camera 231, driven by the second horizontal linear module 234, takes 5 partial images of the lower surface of the optical waveguide sheet to synthesize an overall image; of course, the number of shots of the second detection camera 231 can be adaptively adjusted based on the size of the detection field of view of the second detection camera 231 and the size of the optical waveguide sheet.

[0152] In some embodiments, in combination Fig.11 As shown, the first shooting and detecting module 220 further includes a first backlight source 222 , and the first backlight source 222 and the first detecting camera 221 are respectively located at two opposite sides of the placement through hole 2111 .

[0153] In this embodiment, the first backlight source 222 uses a coaxial light source, and the first backlight source 222 is used to supplement light, which can improve the clarity of the first detection camera 221 while avoiding the interference of the bottom background in the image taken by the detection camera on the imaging result, so as to improve the repeatability accuracy of the optical waveguide sheet detection mechanism, reduce the frequency of re-inspection, and effectively improve the detection efficiency of the optical waveguide sheet. In addition, a clear image can be obtained by reasonably controlling the exposure parameters of the first detection camera 221.

[0154] Of course, the second detection camera 231 can also be provided with a second backlight source (not shown in the figure). Specifically, the second backlight source and the second detection camera 231 are respectively located on opposite sides of the placement through hole 2111. In addition, in combination with the multiple placement through holes 2111 provided on the rotating placement table 211 as mentioned above, when the first detection camera 221 and the second detection camera 231 correspond to different placement through holes 2111, it is effectively ensured that the spatial arrangements of the first detection camera 221, the second detection camera 231, the first backlight source 222 and the second backlight source will not interfere with each other.

[0155] In some embodiments, in combination Figures 11 to 14 As shown, there are multiple support parts 2112, and the multiple support parts 2112 are distributed on the inner walls of the two long sides of the placement through hole 2111. A support position is set at one end of the support part 2112 away from the inside of the placement through hole 2111, and the width of the support position and the distance between the edge of the optical waveguide plate are within a set range.

[0156] In the present embodiment, a plurality of support portions 2112 are symmetrically arranged in groups of two on both sides of the through hole 2111; the symmetrically arranged support portions 2112 ensure that the optical waveguide sheet can be stably supported; of course, in other embodiments, an odd number of support portions 2112 may also be arranged, such as three support portions 2112, two of which are located on the same inner wall, and the remaining one is located on the other inner wall, so as to form a triangular structure to stably support the optical waveguide sheet.

[0157] In this embodiment, the part of each support portion 2112 located below the optical waveguide sheet is a support position, which will contact the optical waveguide sheet and may cause damage to the optical waveguide sheet. It is understandable that the optical waveguide sheet usually uses a certain range of the central area as an effective use area. By controlling the width of the support position and the distance between the edge of the optical waveguide sheet within a set range, the support position is effectively prevented from contacting the effective use area of ​​the optical waveguide sheet, and the support position is prevented from blocking or damaging the detection of the effective use area. It should be noted that the detection requirements of other areas on the optical waveguide sheet except the effective use area are relatively low.

[0158] In this embodiment, the image captured by the first detection camera 221 can also be used to determine the relationship between the width of the support position and the edge of the optical waveguide and the set range (i.e., edge distance detection) to determine whether the optical waveguide is placed correctly.

[0159] In this embodiment, the optical waveguide sheet detection mechanism may be provided with an alarm module, and the first detection camera 221 may be electrically connected to the alarm module. When the image result of the first detection camera 221 determines that the optical waveguide sheet is not correctly placed, the alarm module is controlled to alarm the staff.

[0160] In this embodiment, the placement through hole 2111 is in a strip shape. Of course, based on the optical waveguide sheet of different shapes, the shape of the placement through hole 2111 and the arrangement of the support part 2112 can be adaptively changed. For example, if it is a circle, the placement through hole 2111 can be set to a circle, and a plurality of support parts 2112 can be symmetrically arranged around the center of the circle of the placement through hole 2111.

[0161] In this embodiment, the maximum value of the setting range is 0.36 mm, and the width of the support position is 0.28 mm; of course, the setting range and the width of the support position can be adaptively adjusted based on optical waveguide sheets of different specifications.

[0162] In some embodiments, in combination Figure 12 to Figure 14 As shown, a vacuum channel 21121 is provided in the support position, and the vacuum channel 21121 is connected to an external vacuum source. By starting the external vacuum source, a negative pressure state is formed in the vacuum channel, so that the optical waveguide sheet is stably adsorbed on the support position.

[0163] In this embodiment, a plurality of vacuum air holes 21122 are provided at the bottom of the vacuum channel 21121, and the vacuum air holes 21122 connect the vacuum channel 21121 with an external vacuum source. The vacuum channel 21121 integrates and buffers the airflow in the plurality of vacuum air holes 21122, so as to avoid excessive local pressure on the surface where the optical waveguide sheet contacts the vacuum channel 21121 and thus causing damage.

[0164] In this embodiment, vacuum adsorption effectively reduces the contact between the surface of the optical waveguide and the support portion 2112, thereby reducing damage to the surface of the optical waveguide. The arrangement of the vacuum channel 21121 can be adjusted according to the size and shape of the optical waveguide to meet the fixing requirements of optical waveguides of different specifications.

[0165] In some embodiments, the rotation placement module 210 further includes a vacuum flow meter (not shown in the figure), which is disposed on a pipeline connecting the vacuum channel 21121 and an external vacuum source, and is used to detect the flow in the pipeline.

[0166] It is understandable that when the optical waveguide is adsorbed on the vacuum channel 21121 , the flow rates detected by the vacuum flowmeter corresponding to the optical waveguide in the fully adsorbed state and the partially adsorbed state are different, thereby determining whether the optical waveguide is stably placed on the support portion 2112 .

[0167] Furthermore, as mentioned in the above embodiments, the placement state of the optical waveguide sheet can also be determined in combination with the image detected by the first detection camera 221 .

[0168] In this embodiment, the optical waveguide sheet detection mechanism can be provided with an alarm module, and the vacuum flow meter and the first detection camera 221 can be electrically connected to the alarm module. When any one of the flow rate detected by the vacuum flow meter and the image of the first detection camera 221 determines that the optical waveguide sheet is not correctly placed, the alarm module is controlled to alarm and prompt the staff.

[0169] In some embodiments, in combination Figure 12 to Figure 14 As shown, the rotating placement table 211 includes a detachably connected rotating base 2116 and a vacuum support carrier 2117, the rotating base 2116 can rotate relative to the base 212, and the vacuum support carrier 2117 is provided with a placement through hole 2111. A groove is provided on the rotating base 2116 to match the vacuum support carrier 2117, and by replacing the vacuum support carrier 2117 with different placement through holes 2111 specifications to adapt to optical waveguides of different specifications, the adaptability of the optical waveguide detection mechanism is improved while reducing the debugging cost of the optical waveguide detection mechanism.

[0170] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An optical waveguide sheet detection and sorting device for detecting optical waveguide sheets, characterized in that: include: Frame (100); An optical waveguide sheet detection mechanism (200) comprises a rotation placement module (210) and a first shooting detection module (220), wherein the rotation placement module (210) is connected to the frame (100), the rotation placement module (210) is provided with a placement through hole (2111), the inner wall of the placement through hole (2111) is provided with a support portion (2112) extending toward the middle of the placement through hole (2111), the support portion (2112) being used to support the optical waveguide sheet; the first shooting detection module (220) is connected to the frame (100), the first shooting detection module The block (220) comprises a first detection camera (221) and a first longitudinal linear module (224), wherein the first detection camera (221) is arranged above the placement through hole (2111), the depth of field of the first detection camera (221) is less than the thickness of the optical waveguide sheet, and the first detection camera (221) is used to capture an image of a first surface of the optical waveguide sheet, and to move a preset distance in a direction close to the optical waveguide sheet under the drive of the first longitudinal linear module (224) so ​​as to capture a partial or full image of a second surface of the optical waveguide sheet through the optical waveguide sheet; A feeding module (300) is arranged upstream of the optical waveguide sheet detection mechanism (200), the feeding module (300) comprising a feeding platform (310) and a ejector module (320), the feeding platform (310) being provided with a first mounting position, the first mounting position being used to mount a feeding wafer ring (311), the feeding wafer ring (311) being suitable for carrying the optical waveguide sheet to be detected, the feeding platform (310) being connected to the frame (100) and being arranged above the ejector module (320); A material discharging module (400) connected to the frame (100) and located downstream of the optical waveguide sheet detection mechanism (200); A transport module (500) connected to the feeding module (300), the optical waveguide sheet detection mechanism (200) and the discharging module (400); The optical waveguide sheet detection and sorting equipment further comprises a flip module (800), wherein the flip module (800) comprises a second suction nozzle (810) and a flip rotation module (820), wherein the second suction nozzle (810) is connected to the free end of the flip rotation module (820), the fixed end of the flip rotation module (820) is movably connected to the frame (100), and the rotation axis of the flip rotation module (820) is parallel to the rotation placement module (210); the second suction nozzle (810) is suitable for being in a flip material taking state and a flip rotation module (820) in a flip material taking state and a flip rotation module (820) in a flip material taking state. The flipping feeding state is switched, wherein the flipping feeding state is a state in which the second suction nozzle (810) is located above the optical waveguide sheet detection mechanism (200) and adsorbs the optical waveguide sheet that has been inspected; the flipping feeding state is a state in which the second suction nozzle (810) adsorbs the optical waveguide sheet that has been inspected and flips the optical waveguide sheet 180 degrees; the transport module (500) is capable of transporting the optical waveguide sheet on the second suction nozzle (810) in the flipping feeding state and moving it to the discharging module (400); A support position is provided at one end of the support portion (2112) away from the placement through hole (2111), and a vacuum channel (21121) is provided in the support position. The vacuum channel (21121) is connected to an external vacuum source. By starting the external vacuum source, a negative pressure state is formed in the vacuum channel (21121), so that the optical waveguide sheet is stably adsorbed on the support position; a plurality of vacuum air holes (21122) are provided at the bottom of the vacuum channel (21121), and the vacuum air holes (21122) connect the vacuum channel (21121) and the external vacuum source.

2. The optical waveguide plate detection and sorting device according to claim 1, characterized in that: The material supply platform (310) is provided with a second mounting position, the second mounting position being used to mount a material supply tray (312), the material supply tray (312) being suitable for carrying the optical waveguide sheet to be inspected.

3. The optical waveguide plate detection and sorting device according to claim 1, characterized in that: The optical waveguide sheet detection and sorting device further comprises a pre-scan module (600) connected to the frame (100), the pre-scan module (600) comprising a pre-scan camera (610), the pre-scan camera (610) being located above the feeding module (300), the detection field of the pre-scan camera (610) facing the feeding module (300), and being used to detect the position of the optical waveguide sheet; The feeding module (300) further comprises a first feeding linear module (340), a second feeding linear module (350) and a feeding rotating module (360), wherein the extension directions of the first feeding linear module (340) and the second feeding linear module (350) are parallel to the rotating placement module (210) and an angle is formed between the two, the fixed end of the first feeding linear module (340) is connected to the frame (100), the free end of the first feeding linear module (340) is connected to the fixed end of the second feeding linear module (350), the free end of the second feeding linear module (350) is connected to the fixed end of the feeding rotating module (360), the free end of the feeding rotating module (360) is connected to the feeding carrier (310) and the rotation axis of the feeding rotating module (360) is perpendicular to the rotating placement module (210).

4. The optical waveguide plate detection and sorting device according to claim 3, characterized in that: The pre-scan module (600) further comprises a pre-scan linear module (640), the free end of the pre-scan linear module (640) being connected to the pre-scan camera (610), the fixed end of the pre-scan linear module (640) being connected to the frame (100), and the pre-scan linear module (640) extending in a direction perpendicular to the rotating placement module (210).

5. The optical waveguide plate detection and sorting device according to claim 1, characterized in that: The transport module (500) comprises at least one suction nozzle module (510), the suction nozzle module (510) comprises a first suction nozzle (511), the suction nozzle module (510) is connected to the frame (100), and the first suction nozzle (511) is movable relative to the frame (100); The nozzle module (510) further comprises a first transport linear module (512), a second transport linear module (513), a third transport linear module (517) and a transport rotation module (514); the extension directions of the first transport linear module (512) and the second transport linear module (513) are parallel to the rotation placement module (210) and there is an angle between the two; the third transport linear module (517) extends in a direction perpendicular to the rotation placement module (210); the fixed end of the first transport linear module (512) is connected to the frame (100), the free end of the first transport linear module (512) is connected to the fixed end of the second transport linear module (513), the free end of the second transport linear module (513) is connected to the fixed end of the third transport linear module (517), the free end of the third transport linear module (517) is connected to the fixed end of the transport rotary module (514), the free end of the transport rotary module (514) is connected to the first suction nozzle (511) and the rotation axis of the transport rotary module (514) is perpendicular to the rotation placement module (210).

6. The optical waveguide sheet detection and sorting device according to claim 5, characterized in that: The transport module (500) comprises two suction nozzle modules (510), wherein the two suction nozzle modules (510) are respectively a loading suction nozzle module (521) and a unloading suction nozzle module (522); the first suction nozzle (511) of the loading suction nozzle module (521) is suitable for transporting the optical waveguide sheet of the feeding module (300) to the optical waveguide sheet detection mechanism (200); and the first suction nozzle (511) of the unloading suction nozzle module (522) is suitable for transporting the optical waveguide sheet of the optical waveguide sheet detection mechanism (200) to the unloading module (400).

7. The optical waveguide sheet detection and sorting device according to claim 6, characterized in that: The optical waveguide sheet detection and sorting device further comprises a loading and shooting module (710), the loading and shooting module (710) comprising a loading and shooting camera (711), the loading and shooting module (710) being connected to the frame (100), the loading and shooting camera (711) being arranged between the feeding module (300) and the optical waveguide sheet detection mechanism (200), the loading and shooting camera (711) being suitable for capturing an image of the optical waveguide sheet adsorbed by the loading nozzle module (521); and / or, The optical waveguide sheet detection and sorting equipment also includes a material unloading overhead shooting module (720), the material unloading overhead shooting module (720) includes a material unloading overhead shooting camera (721), the material unloading overhead shooting module (720) is connected to the frame (100), the material unloading overhead shooting camera (721) is arranged between the optical waveguide sheet detection mechanism (200) and the discharging module (400), and the material unloading overhead shooting camera (721) is suitable for capturing an image of the optical waveguide sheet adsorbed by the material unloading suction nozzle module (522).

8. The optical waveguide plate detection and sorting device according to any one of claims 1 to 7, characterized in that: The material discharging module (400) comprises a material discharging platform (410); The discharge platform (410) is equipped with at least two discharge wafer rings (411), and different discharge wafer rings (411) are used to place optical waveguide sheets of different qualities; or, The discharge platform (410) is equipped with at least two discharge trays (412), and different discharge trays (412) are used to place optical waveguide sheets of different qualities.

9. The optical waveguide plate detection and sorting device according to any one of claims 1 to 7, characterized in that: The optical waveguide sheet detection and sorting equipment further comprises a discharge detection module (900), wherein the discharge detection module (900) comprises a discharge camera (910), wherein the discharge detection module (900) is connected to the frame (100), wherein the discharge camera (910) is located above the discharge module (400), wherein the detection field of the discharge camera (910) faces the discharge module (400), and is used to detect the position of the optical waveguide sheet on the discharge module (400).

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