Optical crystal ab-plane detection device and detection method thereof

Abstract

The application provides an optical crystal AB surface detection device and a detection method in the field of optical crystal detection. The position and the orientation of the hexahedral coated glass in the blue film wafer disc are quickly photographed, positioned and determined through a CCD camera. The hexahedral coated glass which needs to be turned over is exchanged and adsorbed by a vertically cooperating pickup assembly and a moving pickup assembly so that the coated surface B faces upward. A turning mechanism is not needed, the turning operation process is simplified, the rapid detection, pickup, turning and transfer of the crystal AB surface are realized, and the detection efficiency is improved. The disclosed detection method of the optical crystal AB surface replaces manual judgment and turning and transfer by using a microscope and a clamp, improves the detection speed and accuracy, and realizes rapid identification and turning and transfer.

Description

Technical Field

[0001] This invention relates to the field of optical crystal testing, and in particular to an optical crystal AB surface testing device and its testing method. Background Technology

[0002] Optical crystals are crystal materials used as optical media materials, mainly used to make windows, lenses and prisms in the ultraviolet and infrared regions. They are classified into single crystals and polycrystalline crystals according to their crystal structure.

[0003] An optical crystal is a hexahedral coated glass, which mainly includes a coated surface A and a coated surface B arranged opposite each other, and four circumferentially distributed cut surfaces C. The coating thickness of coated surface A and coated surface B is different. Traditional testing equipment requires manual identification of coated surface A and coated surface B using a microscope. Then, the hexahedral coated glass is clamped and placed into the testing box with coated surface B facing up. Manual identification of coated surface A and coated surface B is required before clamping. If the surface needs to be flipped, it needs to be turned over. The operation is cumbersome, the detection speed of coated surface A and coated surface B is slow, and the optical crystal is small in size. When using manual clamps to flip it, the clamping and flipping operation is difficult.

[0004] This application provides an optical crystal AB surface detection device and method, which realizes automated detection and clamping. Summary of the Invention

[0005] The purpose of this application is to solve the problems of slow detection speed and high operation difficulty when manually inspecting the AB surface of an optical crystal and flipping and clamping it. Compared with the prior art, this application provides an optical crystal AB surface inspection device and method that can realize the use of CCD camera to capture images and perform picking, flipping and transferring operations, thereby improving the detection speed and detection effect.

[0006] An optical crystal AB-side inspection device includes a worktable, on which symmetrically arranged blue film wafers and inspection boxes are placed. Multiple hexahedral coated glasses after crystal expansion are bonded to the blue film wafers. The hexahedral coated glasses include coated surfaces A and B, which are arranged opposite each other and have different coating thicknesses, and four cut surfaces C. A transfer frame is provided on the worktable between the blue film wafers and the inspection boxes. The transfer frame is connected to a first power mechanism that drives the transfer frame to rotate. A set of symmetrically arranged planar two-dimensional lead screw assemblies are installed on the transfer frame. A pick-and-flip mechanism for picking up and flipping the hexahedral coated glasses is connected below the planar two-dimensional lead screw assemblies.

[0007] The pickup and flipping mechanism includes a mounting frame on which a CCD camera for determining the orientation of the coated surface of the hexahedral coated glass is mounted. A vertical pickup component is fixedly mounted inside the CCD camera on the mounting frame. A movable pickup component is located outside the vertical pickup component. The movable pickup component is connected to a rotating disk that is rotatably connected to the mounting frame. The rotating disk is connected to a second servo motor. A rotary table that is rotatably connected to the rotating disk is fixedly connected to the movable pickup component. A third servo motor that is fixedly connected to the rotating disk is connected to the rotary table.

[0008] Furthermore, the CCD camera is connected to an angle adjustment mechanism, which includes a mounting shaft fixedly connected to the CCD camera and rotatably connected to the mounting bracket. The mounting shaft is connected to a swing power mechanism, which includes a first driven gear fixed to the end of the mounting shaft. The first driven gear meshes with a rack frame slidably connected to the mounting bracket. The rack frame is engaged with an eccentric disk. The eccentric disk is fixedly connected to a transmission shaft rotatably connected to the mounting bracket. The end of the transmission shaft is fixedly connected to a second driven gear that meshes with a rotating disk. The circumferential sidewall of the rotating disk is provided with locking teeth that mesh with the second driven gear.

[0009] Preferably, the rack frame is horizontally L-shaped, and includes a horizontal rack, a snap-fit ​​frame integrally formed with the horizontal rack and vertically arranged, and a sliding slot disposed on the upper part of the horizontal rack. The inner wall of the mounting bracket is fixedly connected with a slide rail that mates with the sliding slot.

[0010] Preferably, the transfer frame includes a rotating plate, with a support shaft fixedly connected to the lower end of the rotating plate, and the support shaft is rotatably connected to the worktable through a bearing seat; the first power mechanism includes a worm gear sleeved on the support shaft, the worm gear meshing with a worm, and the worm connected to a first servo motor.

[0011] Preferably, the rotating plate is a rectangular plate, and mounting slots for mounting planar two-dimensional lead screw assemblies are provided on both sides of the rotating plate. A protective cover is fitted on the outside of the first servo motor.

[0012] Preferably, the planar two-dimensional lead screw assembly includes a longitudinally arranged Y-axis lead screw assembly and a transversely arranged X-axis lead screw assembly connected to the Y-axis lead screw assembly. Both the Y-axis lead screw assembly and the X-axis lead screw assembly include a sliding groove, a moving block nested in the sliding groove, a lead screw threadedly connected to the moving block, and a lead screw motor connected to the lead screw. The moving block of the X-axis lead screw assembly is fixedly connected to the mounting bracket.

[0013] Preferably, the vertical pickup component and the mobile pickup component have the same structure, both including a voice coil motor and a bakelite nozzle fixedly connected to the voice coil motor.

[0014] Preferably, the rotating disk is provided with an integrally formed mounting cylinder, the mounting frame is provided with a mounting column that cooperates with the mounting cylinder, the mounting cylinder is sleeved on the mounting column and rotatably connected to it, the second servo motor is fixedly connected to the mounting frame by bolts, the third servo motor is fixedly connected to the rear wall of the rotating disk by bolts, and an infrared ranging sensor is installed on the side wall of the moving pickup component.

[0015] An optical crystal AB surface inspection method is used to inspect the optical crystal AB surface inspection device as described above, including the following steps: Step 1, the hexahedral coated glass on the material tray is manually adsorbed and leveled using a blue film, then the blue film is expanded, and the expanded blue film is placed on the blue film wafer disk on the worktable.

[0016] Step 2: Take multi-angle photos of the hexahedral coated glass on the blue film wafer disk using a CCD camera to determine the position of the hexahedral coated glass and the orientation of the coated surface B.

[0017] Step 3: The pick-up and flip mechanism picks up and lifts the hexahedral coated glass on the blue film wafer disk. Based on the position of the hexahedral coated glass and the orientation of the coated surface B in Step 2, it is determined whether to perform the vertical pick-up component and the moving pick-up component to exchange and adsorb so that the coated surface B of the hexahedral coated glass faces upward. Then, the operation is performed so that the coated surface B of the hexahedral coated glass faces upward.

[0018] Step 4: Start the transfer rack to horizontally transfer the flipped hexahedral coated glass to the top of the detection box, and then put the flipped hexahedral coated glass into the detection box.

[0019] Preferably, the determination of whether to perform the exchange adsorption operation between the vertical pickup component and the moving pickup component in step three is based on three cases: First, if the coating surface B of the hexahedral coated glass is facing upward in its initial state, the exchange adsorption between the vertical pickup component and the moving pickup component is not required; Second, if the coating surface B of the hexahedral coated glass is facing downward in its initial state, the exchange adsorption between the vertical pickup component and the moving pickup component is required, causing the hexahedral coated glass to flip so that the coating surface B faces upward; Third, if the coating surface B of the hexahedral coated glass is horizontal in its initial state, the exchange adsorption between the vertical pickup component and the moving pickup component is required, causing the hexahedral coated glass to flip so that the coating surface B faces upward.

[0020] Compared with the prior art, the advantages of this invention are:

[0021] (1) This invention uses a CCD camera to quickly photograph, locate, and determine the position of the hexahedral coated glass and the orientation of the coated surface B in the blue film wafer disk. By using the vertical pickup component and the moving pickup component that cooperate with each other, the hexahedral coated glass that needs to be flipped is exchanged and adsorbed so that its coated surface B faces upward. There is no need to set up a separate flipping mechanism, which simplifies the flipping operation process and realizes the rapid detection, pickup, flipping, and transfer of the AB surface of the crystal, thereby improving the detection efficiency.

[0022] (2) The present invention uses a rotating platform set on a rotating disk to fix the moving pickup component, which facilitates the adjustment of the orientation of the moving pickup component so that its bakelite suction head faces the coating surface B of the hexahedral coated glass, thereby quickly realizing the exchange adsorption and flipping.

[0023] (3) The present invention uses an angle adjustment mechanism that is connected to the CCD camera and linked to the rotating disk to facilitate the adjustment of the shooting angle of the CCD camera on the hexahedral coated glass, so that when the CCD camera is tilted to shoot, the orientation of the coating surface B of the hexahedral coated glass is positioned, thereby facilitating the determination of whether to perform exchange adsorption and the rotation angle of the moving pickup component during adsorption.

[0024] (4) The detection method of the AB surface of the optical crystal disclosed in this invention replaces the manual judgment and flipping transfer using a microscope and clamps, which improves the detection speed and accuracy, and realizes rapid identification and flipping transfer. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the assembly structure of the rotating frame in this invention;

[0027] Figure 3 This is a schematic diagram of the assembly structure of the planar two-dimensional lead screw assembly and the pickup and flipping mechanism in this invention;

[0028] Figure 4 This is a rear view schematic diagram of the rotating disk in this invention;

[0029] Figure 5 This is a schematic diagram of the state structure when flipping occurs without the need for exchange adsorption in this invention;

[0030] Figure 6 This is a schematic diagram illustrating the state in which the movable pickup component needs to be rotated to be below the crystal for adsorption in this invention;

[0031] Figure 7 This is a schematic diagram showing the state in which the movable pickup component needs to be rotated to the side of the crystal for adsorption in this invention;

[0032] Figure 8This is a cross-sectional view of the mounting bracket in this invention;

[0033] Figure 9 This is a cross-sectional view of the rotating disk in this invention.

[0034] Figure 10 This is a schematic diagram of the angle adjustment mechanism in this invention;

[0035] Figure 11 In this invention Figure 10 Enlarged structural diagram at point B;

[0036] Figure 12 This is a three-dimensional structural diagram of the rack frame in this invention.

[0037] The diagram labels are as follows: 1. Workbench; 2. Transfer frame; 201. Rotating plate; 2011. Mounting slot; 202. Support shaft; 203. Worm gear; 204. Worm; 205. First servo motor; 206. Protective cover; 3. Planar two-dimensional lead screw assembly; 301. Y-axis lead screw assembly; 302. X-axis lead screw assembly; 4. Pick-up and flipping mechanism; 401. Mounting frame; 4011. Mounting column; 402. CCD camera; 403. Vertical pickup assembly; 404. Bakelite suction head; 405. 4051 Rotating disk; 406 Mounting cylinder; 407 Rotating stage; 408 Moving pickup assembly; 409 Infrared ranging sensor; 410 Second servo motor; 5 Blue film wafer disk; 6 Detection box; 7 Hexahedral coated glass; 8 Mounting shaft; 9 First driven gear; 10 Rack frame; 1001 Horizontal rack; 1002 Sliding slot; 1003 Snap-fit ​​frame; 11 Slide rail; 12 Eccentric disk; 13 Drive shaft; 14 Second driven gear. Detailed Implementation

[0038] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0039] Example 1:

[0040] This invention provides an optical crystal AB surface detection device. Please refer to [link / reference]. Figure 1-9The system includes a workbench 1, on which symmetrically arranged blue film wafer disks 5 and a test box 6 are placed. Multiple hexahedral coated glass 7 after crystal expansion are bonded to the blue film wafer disks 5. The hexahedral coated glass 7 includes a coated surface A and a coated surface B arranged opposite each other with different coating thicknesses, as well as four cut surfaces C. The workbench 1 is provided with a transfer frame 2 located between the blue film wafer disks 5 and the test box 6. The transfer frame 2 is connected to a first power mechanism that drives the transfer frame 2 to rotate. A set of symmetrically arranged planar two-dimensional lead screw assemblies 3 are installed on the transfer frame 2. Below the planar two-dimensional lead screw assemblies 3 is a pick-up and flipping mechanism 4 for picking up and flipping the hexahedral coated glass 7.

[0041] The pickup and flipping mechanism 4 includes a mounting frame 401, on which a CCD camera 402 is mounted to determine the orientation of the coated surface of the hexahedral coated glass 7. A vertical pickup component 403 is fixedly mounted inside the CCD camera 402 on the mounting frame 401. A movable pickup component 407 is provided outside the vertical pickup component 403. The movable pickup component 407 is connected to a rotating disk 405 that is rotatably connected to the mounting frame 401. A second servo motor 409 is connected to the rotating disk 405. A rotary table 406 that is rotatably connected to the rotating disk 405 is fixedly connected to the movable pickup component 407. A third servo motor 410 that is fixedly connected to the rotating disk 405 is connected to the rotary table 407.

[0042] Specifically, when inspecting the hexahedral coated glass 7, the CCD camera 402 is activated. The CCD camera 402 takes pictures of the hexahedral coated glass 7 inside the blue film wafer disk 5, locates the position of the hexahedral coated glass 7 and identifies its coated surface. Then, the planar two-dimensional lead screw assembly 3 located above the blue film wafer disk 5 is activated. The planar two-dimensional lead screw assembly 3 moves the pick-up and flip mechanism 4 to the positioning position. Then, the vertical pick-up assembly 403 is activated. The vertical pick-up assembly 403 moves downward to pick up and lift the positioned hexahedral coated glass 7.

[0043] There are three cases based on the orientation of the coating surface ( Figure 5-7 In the first method, when the vertical pickup component 403 moves downward and adsorbs onto the coating surface B of the hexahedral coated glass 7, the transfer frame 2 is activated, causing the transfer frame 2 to drive the pickup flipping mechanism 4 to rotate 180 degrees, so that the hexahedral coated glass 7 moves above the detection box 6. Then, the vertical pickup component 403 is activated again, and the vertical pickup component 403 moves downward to put the hexahedral coated glass 7 into the detection box 6.

[0044] The second method involves the vertical pickup component 403 moving downwards and adsorbing onto the coating surface A of the hexahedral coated glass 7. First, the vertical pickup component 403 moves upwards, causing the hexahedral coated glass 7 to detach from the blue film wafer disk 5. Second, the second servo motor 409 is activated, causing the moving pickup component 407 to rotate 90 degrees to below the coating surface B of the hexahedral coated glass 7. Third, the moving pickup component 407 is activated to adsorb and fix the coating surface B of the hexahedral coated glass 7. Then, the vertical pickup component 403 moves upwards, causing the vertical pickup component 403 to detach from the blue film wafer disk 5. The pickup component 403 disengages from the coated surface A of the hexahedral coated glass 7; in the fourth step, the third servo motor 410 is started, which drives the rotary table 406 to rotate 180 degrees, causing the hexahedral coated glass 7 to flip 180 degrees so that the coated surface B faces upward; in the fifth step, the transfer frame 2 is started, which drives the pickup flipping mechanism 4 to rotate 180 degrees, causing the hexahedral coated glass 7 to move above the detection box 6, and then the moving pickup component 407 is started again to move the hexahedral coated glass 7 downward and place it into the detection box 6;

[0045] The third method involves the following steps: When the vertical pickup component 403 moves downward and adheres to the cut surface C of the hexahedral coated glass 7, the first step is to move the vertical pickup component 403 upward to detach the hexahedral coated glass 7 from the blue film wafer disk 5. The second step is to activate the second servo motor 409, which rotates the rotating disk 405 to drive the moving pickup component 407 to rotate, so that the moving pickup component 407 faces the coated surface B of the hexahedral coated glass 7. Then, the moving pickup component 407 is activated to adhere and fix the hexahedral coated glass 7. After that, the vertical pickup component 403 is activated to detach from the hexahedral coated glass 7. The third step is to activate the transfer frame 2, which drives the pickup flipping mechanism 4 to rotate 180 degrees, so that the hexahedral coated glass 7 moves above the detection box 6. Then, the moving pickup component 407 is activated again to move the hexahedral coated glass 7 downward and place it into the detection box 6.

[0046] It should be noted that in the third case, the CCD camera 402 takes pictures of the hexahedral coated glass 7 inside the blue film wafer disk 5 from multiple angles, thereby determining the orientation of the coated surface B of the hexahedral coated glass 7, and then controlling the moving pickup component 407 to rotate to the opposite side of the coated surface B.

[0047] Please see Figure 2 In this embodiment, the transfer frame 2 includes a rotating plate 201, and a support shaft 202 is fixedly connected to the lower end of the rotating plate 201. The support shaft 202 is rotatably connected to the worktable 1 through a bearing seat. The first power mechanism includes a worm gear 203 sleeved on the support shaft 202. The worm gear 203 meshes with a worm 204, and the worm 204 is connected to a first servo motor 205.

[0048] Specifically, the first servo motor 205 drives the support shaft 202 and the rotating plate 201 on it to rotate through the worm gear 204 and worm wheel 203, thereby realizing the transfer of the hexahedral coated glass 7.

[0049] In this embodiment, the rotating plate 201 is a rectangular plate, and mounting slots 2011 for mounting the planar two-dimensional lead screw assembly 3 are provided on both sides of the rotating plate 201. A protective cover 206 is fitted on the outside of the first servo motor 205.

[0050] Specifically, it facilitates the installation of the planar two-dimensional lead screw assembly 3.

[0051] Please see Figure 3 and Figure 4 In this embodiment, the planar two-dimensional lead screw assembly 3 includes a longitudinally arranged Y-axis lead screw assembly 301 and an X-axis lead screw assembly 302 connected to the Y-axis lead screw assembly 301 and arranged laterally.

[0052] In this embodiment, both the Y-axis lead screw assembly 301 and the X-axis lead screw assembly 302 include a sliding groove, a moving block nested in the sliding groove, a lead screw threadedly connected to the moving block, and a lead screw motor connected to the lead screw. The moving block of the X-axis lead screw assembly 302 is fixedly connected to the mounting bracket 401.

[0053] Specifically, the Y-axis lead screw assembly 301 adjusts the position of the pickup and flipping mechanism 4 in the longitudinal direction, and the X-axis lead screw assembly 302 adjusts the position of the pickup and flipping mechanism 4 in the horizontal direction, thereby ensuring that the pickup and flipping mechanism 4 moves in the two-dimensional plane, positions the hexahedral coated glass 7 at different positions, and performs pickup.

[0054] Please see Figure 3 In this embodiment, the vertical pickup component 403 and the moving pickup component 407 have the same structure, both of which include a voice coil motor and a bakelite suction head 404 fixedly connected to the voice coil motor.

[0055] Specifically, the bakelite suction head 404 is used to pick up and fix the hexahedral coated glass 7, thereby achieving rapid transfer and flipping.

[0056] Please see Figure 8 and Figure 9 In this embodiment, the rotating disk 405 is provided with an integrally formed mounting cylinder 4051, and the mounting frame 401 is provided with a mounting post 4011 that cooperates with the mounting cylinder 4051. The mounting cylinder 4051 is sleeved on the mounting post 4011 and rotatably connected to it. The second servo motor 409 is fixedly connected to the mounting frame 401 by bolts, and the third servo motor 410 is fixedly connected to the rear wall of the rotating disk 405 by bolts.

[0057] Specifically, it enables the installation of the rotating disk 405 and facilitates its rotation, thereby driving the mobile pickup component 407 to adjust its position.

[0058] Please see Figure 3 In this embodiment, an infrared ranging sensor 408 is installed on the side wall of the mobile pickup component 407.

[0059] Specifically, it facilitates adjusting the distance between the bakelite suction head 404 of the mobile pickup component 407 and the hexahedral coated glass 7, and precisely moves the bakelite suction head 404 on the mobile pickup component 407 and the vertical pickup component 403 when they exchange adsorption and fixation, so as to avoid the hexahedral coated glass 7 falling off due to the failure of the exchange adsorption between the two.

[0060] This invention also provides a method for detecting the AB surface of an optical crystal, comprising the following steps: Step 1, manually using a blue film to adsorb and level the hexahedral coated glass 7 on a material tray, then expanding the blue film, and placing the expanded blue film on a blue film wafer disk 5 on a worktable 1; Step 2, using a CCD camera 402 to take multi-angle pictures of the hexahedral coated glass 7 on the blue film wafer disk 5 to locate the position of the hexahedral coated glass 7 and the orientation of the coated surface B; Step 3, using a pick-up and flipping mechanism 4 to pick up and flip the hexahedral coated glass 7 on the blue film wafer disk 5. The process involves suction and lifting. Based on the positioning of the hexahedral coated glass 7 and the orientation of the coated surface B as determined in step two, it is determined whether to perform an operation to exchange and adsorb the vertical pickup component 403 and the moving pickup component 407 so that the coated surface B of the hexahedral coated glass 7 faces upward. Then, the operation is performed to make the coated surface B of the hexahedral coated glass 7 face upward. In step four, the transfer frame 2 is activated to horizontally transfer the picked-up and flipped hexahedral coated glass 7 so that it is moved above the detection box 6. Then, the flipped hexahedral coated glass 7 is placed into the detection box 6.

[0061] Please see Figure 5-7 In this embodiment, the determination of whether to perform the exchange adsorption between the vertical pickup component 403 and the moving pickup component 407 to make the coated surface B of the hexahedral coated glass 7 face upwards is based on three cases: First, the coated surface B of the hexahedral coated glass 7 is facing upwards in its initial state, and the exchange adsorption between the vertical pickup component 403 and the moving pickup component 407 is not required; Second, the coated surface B of the hexahedral coated glass 7 is facing downwards in its initial state, and the exchange adsorption between the vertical pickup component 403 and the moving pickup component 407 is required to flip the hexahedral coated glass 7 so that the coated surface B faces upwards; Third, the coated surface B of the hexahedral coated glass 7 is horizontal in its initial state, and the exchange adsorption between the vertical pickup component 403 and the moving pickup component 407 is required to flip the hexahedral coated glass 7 so that the coated surface B faces upwards.

[0062] Example 2:

[0063] This invention provides an optical crystal AB surface detection device and method. Please refer to [link to relevant documentation]. Figure 10-12 The difference between this embodiment and embodiment 1 is that the CCD camera 402 is connected to an angle adjustment mechanism; the angle adjustment mechanism includes a mounting shaft 8 that is fixedly connected to the CCD camera 402 and rotatably connected to the mounting bracket 401, and the mounting shaft 8 is connected to a swing power mechanism.

[0064] Specifically, the mounting shaft 8 is rotated by the swing power mechanism, and the mounting shaft 8 drives the CCD camera 402 to swing, and then takes pictures of the hexahedral coated glass 7 in the blue film wafer disk 5 from multiple angles, so as to facilitate the identification of the orientation of the coated surface B on the hexahedral coated glass 7 with the cut surface C facing upward, and thus facilitate the determination of the rotation angle of the moving pickup component 407.

[0065] In this embodiment, the swing power mechanism includes a first driven gear 9 fixed to the end of the mounting shaft 8. The first driven gear 9 meshes with a rack frame 10 that is slidably connected to the mounting frame 401. The rack frame 10 is engaged with an eccentric disk 12. The eccentric disk 12 is fixedly connected to a transmission shaft 13 that is rotatably connected to the mounting frame 401. The end of the transmission shaft 13 is fixedly connected to a second driven gear 14 that meshes with a rotating disk 405. The circumferential sidewall of the rotating disk 405 is provided with locking teeth that mesh with the second driven gear 14.

[0066] Specifically, the second servo motor 409 drives the rotating disk 405 to rotate. The rotating disk 405 drives the eccentric disk 12 to rotate through the second passive gear 14 and the transmission shaft 13. The eccentric disk 12 drives the rack frame 10 to move laterally. The rack frame 10 drives the mounting shaft 8 and the CCD camera 402 fixed on it to rotate through the first passive gear 9, thereby adjusting the shooting angle of the CCD camera 402 and realizing multi-angle shooting of the hexahedral coated glass 7.

[0067] In this embodiment, the rack frame 10 is horizontally L-shaped. The rack frame 10 includes a horizontal rack 1001, a snap-fit ​​frame 1003 integrally formed with the horizontal rack 1001 and vertically arranged, and a sliding slot 1002 arranged on the upper part of the horizontal rack 1001. The inner wall of the mounting bracket 401 is fixedly connected with a slide rail 11 that cooperates with the sliding slot 1002.

[0068] Specifically, the CCD camera 402 can be oscillated within a certain angle by rotating the rotating disk 405, which simplifies the drive structure and makes adjustment convenient.

[0069] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto.

Claims

1. An optical crystal AB surface detection device, comprising a workbench (1), a symmetrically arranged blue film wafer disc (5) and a detection box (6) are placed on the workbench (1), a plurality of expanded hexahedral coated glasses (7) are adhered on the blue film wafer disc (5), the hexahedral coated glass (7) comprises a coated surface A and a coated surface B which are oppositely arranged and have different coating thicknesses, and four cutting surfaces C; characterized in that, The workbench (1) is provided with a transfer frame (2) between the blue film wafer disk (5) and the detection box (6). The transfer frame (2) is connected to a first power mechanism that drives the transfer frame (2) to rotate. A set of symmetrically arranged planar two-dimensional screw assemblies (3) are installed on the transfer frame (2). A picking and flipping mechanism (4) for picking up and flipping the hexahedral coated glass (7) is connected below the planar two-dimensional screw assembly (3). The pickup and flipping mechanism (4) includes a mounting frame (401), on which a CCD camera (402) for determining the orientation of the coated surface of the hexahedral coated glass (7) is mounted. A vertical pickup component (403) is fixedly mounted inside the CCD camera (402) on the mounting frame (401). A movable pickup component (407) is provided outside the vertical pickup component (403). The movable pickup component (407) is connected to a rotating disk (405) that is rotatably connected to the mounting frame (401). A second servo motor (409) is connected to the rotating disk (405). The movable pickup component (407) is fixedly connected to a rotating platform (406) that is rotatably connected to the rotating disk (405). A third servo motor (410) is fixedly connected to the rotating disk (405).

2. The optical crystal AB plane detection device according to claim 1, wherein The CCD camera (402) is connected to an angle adjustment mechanism. The angle adjustment mechanism includes a mounting shaft (8) that is fixedly connected to the CCD camera (402) and rotatably connected to the mounting bracket (401). The mounting shaft (8) is connected to a swing power mechanism. The swing power mechanism includes a first driven gear (9) fixed at the end of the mounting shaft (8). The first driven gear (9) meshes with a rack frame (10) that is slidably connected to the mounting bracket (401). The rack frame (10) is engaged with an eccentric disk (12). The eccentric disk (12) is fixedly connected to a transmission shaft (13) that is rotatably connected to the mounting bracket (401). The end of the transmission shaft (13) is fixedly connected to a second driven gear (14) that meshes with a rotating disk (405). The circumferential sidewall of the rotating disk (405) is provided with a locking tooth that meshes with the second driven gear (14).

3. The optical crystal AB plane detection device according to claim 2, wherein The rack frame (10) is horizontally L-shaped. The rack frame (10) includes a horizontal rack (1001), a snap-fit ​​frame (1003) integrally formed with the horizontal rack (1001) and vertically arranged, and a sliding slot (1002) arranged on the upper part of the horizontal rack (1001). The inner wall of the mounting bracket (401) is fixedly connected with a slide rail (11) that cooperates with the sliding slot (1002).

4. The optical crystal AB plane detection device according to claim 1, wherein The transfer frame (2) includes a rotating plate (201), and a support shaft (202) is fixedly connected to the lower end of the rotating plate (201). The support shaft (202) is rotatably connected to the worktable (1) through a bearing seat. The first power mechanism includes a worm gear (203) sleeved on the support shaft (202), and the worm gear (203) meshes with a worm (204). The worm (204) is connected to a first servo motor (205).

5. The optical crystal AB plane detection device according to claim 4, wherein The rotating plate (201) is a rectangular plate. The rotating plate (201) has mounting slots (2011) on both sides for mounting the planar two-dimensional lead screw assembly (3). The first servo motor (205) is fitted with a protective cover (206).

6. The optical crystal AB plane detection device according to claim 1, wherein The planar two-dimensional lead screw assembly (3) includes a longitudinally arranged Y-axis lead screw assembly (301) and a transversely arranged X-axis lead screw assembly (302) connected to the Y-axis lead screw assembly (301). Both the Y-axis lead screw assembly (301) and the X-axis lead screw assembly (302) include a sliding groove, a moving block nested in the sliding groove, a lead screw threadedly connected to the moving block, and a lead screw motor connected to the lead screw. The moving block of the X-axis lead screw assembly (302) is fixedly connected to the mounting bracket (401).

7. The optical crystal AB plane detection device according to claim 1, wherein The vertical pickup assembly (403) and the moving pickup assembly (407) have the same structure, both including a voice coil motor and a bakelite nozzle (404) fixedly connected to the voice coil motor.

8. The optical crystal AB plane detection device according to claim 1, wherein The rotating disk (405) is provided with an integrally formed mounting cylinder (4051), and the mounting frame (401) is provided with a mounting post (4011) that cooperates with the mounting cylinder (4051). The mounting cylinder (4051) is sleeved on the mounting post (4011) and rotatably connected to it. The second servo motor (409) is fixedly connected to the mounting frame (401) by bolts, and the third servo motor (410) is fixedly connected to the rear wall of the rotating disk (405) by bolts. An infrared ranging sensor (408) is installed on the side wall of the moving pickup component (407).

9. A detection method of optical crystal AB surface detection, characterized in that, The detection is performed using the optical crystal AB surface detection device as described in any one of claims 1-8, including the following steps: Step 1, the hexahedral coated glass (7) on the material tray is manually flattened by adsorption of the blue film, then the blue film is expanded, and the expanded blue film is placed on the blue film wafer disk (5) on the worktable (1); Step 2: Take multi-angle photos of the hexahedral coated glass (7) on the blue film wafer disk (5) using a CCD camera (402) to determine the position of the hexahedral coated glass (7) and the orientation of the coated surface B. Step 3: The pick-up and flip mechanism (4) picks up and lifts the hexahedral coated glass (7) on the blue film wafer disk (5). Based on the positioning of the hexahedral coated glass (7) and the orientation of the coated surface B in Step 2, it is determined whether to perform the exchange adsorption of the vertical pick-up component (403) and the moving pick-up component (407) so that the coated surface B of the hexahedral coated glass (7) faces upward. Then, the operation is performed so that the coated surface B of the hexahedral coated glass (7) faces upward. Step 4: Start the transfer rack (2) to horizontally transfer the flipped hexahedral coated glass (7) so that it moves above the detection box (6), and then put the flipped hexahedral coated glass (7) into the detection box (6).

10. The detection method for detecting the AB surface of an optical crystal according to claim 9, characterized in that, The judgment of whether to perform the exchange adsorption operation of the vertical pickup assembly (403) and the moving pickup assembly (407) in step three is based on three cases: first, the initial state of the six-sided coated glass (7) is that the coated surface B is upward, and the exchange adsorption of the vertical pickup assembly (403) and the moving pickup assembly (407) is not needed; second, the initial state of the six-sided coated glass (7) is that the coated surface B is downward, and the exchange adsorption of the vertical pickup assembly (403) and the moving pickup assembly (407) is needed, so that the six-sided coated glass (7) is flipped to make the coated surface B upward; third, the initial state of the six-sided coated glass (7) is that the coated surface B is horizontally oriented, and the exchange adsorption of the vertical pickup assembly (403) and the moving pickup assembly (407) is needed, so that the six-sided coated glass (7) is flipped to make the coated surface B upward.

Images