Optical element surface inspection conveyor and method

Abstract

The application discloses an optical element surface detection conveying device, which comprises a movable plate with an adjustable height position arranged on the top of a conveying mechanism and vertically slidingly installed to the inside of a conveying groove; a plurality of dust suction covers are equidistantly installed on the plate surface of the movable plate, and the dust suction ports of the dust suction covers face the conveying loading surface above the conveying mechanism. The application has the advantages that it can be applied to the dust removal treatment of optical elements with different thicknesses, and the dust suction effect during the conveying of optical elements with different thicknesses is ensured by adjusting the height position of the movable plate and equidistantly installing a plurality of dust suction covers on the movable plate.

Description

Technical Field

[0001] This application relates to the field of optical element measurement and conveying, and in particular to an optical element surface inspection and conveying device and method. Background Technology

[0002] Optical components include lenses, prisms, mirrors, etc., and are mostly flat, sheet-like objects; they can be used in various optical instruments, such as microscopes, telescopes, cameras, projectors, etc.

[0003] After optical components are manufactured, they need to undergo a series of tests and measurements to determine whether they are qualified. During the testing process, conveyor devices are often used to transport optical components between different processes. The upper conveyor surface of traditional conveyors is often directly exposed to the outside air. If such conveyor devices are directly applied to the testing of optical components, the optical components will be directly exposed to the air, affecting their subsequent use. In addition, during the manufacturing process, debris or dust may adhere to the surface of the optical components. Even on a closed conveyor, no new dust will fall on the surface of the optical components, but the dust that has already adhered cannot be removed. Summary of the Invention

[0004] To address the aforementioned issues, this invention designs an optical element surface inspection and conveying device. By adjusting the height of the movable plate, it ensures that the dust collection port at the bottom of the dust collection hood can approach and abut against the top of optical elements of different thicknesses, avoiding excessive spacing between the bottom of the dust collection hood and the optical elements, which would affect the dust collection effect. This ensures the dust collection effect during the conveying of optical elements of different thicknesses. By designing a flipping component, the optical elements can be flipped to achieve dust collection on both sides of the optical elements.

[0005] The objective of this invention is achieved as follows: An optical element surface inspection and conveying device includes a platform, a conveying groove is formed on the top of the platform along its length, a conveying mechanism is provided in the conveying groove, and an inlet and an outlet are respectively provided at the left and right ends of the conveying groove; the top of the conveying mechanism is provided with a movable plate whose height position is adjustable, and the movable plate is slidably installed vertically inside the conveying groove. Several dust suction hoods are installed at equal intervals on the surface of the movable plate, and the dust suction ports of the dust suction hoods face the conveying surface above the conveying mechanism.

[0006] In the aforementioned optical element surface inspection and conveying device, a top plate is fixedly installed on the top of the platform; two first observation holes are opened on the end of the top plate near the discharge port, and two second observation holes are opened on the end of the movable plate near the discharge port, with the second observation holes located below the first observation holes; a flipping assembly is provided between two adjacent dust collection hoods and between the two second observation holes, and the flipping assembly is placed on the conveying platform above the conveying mechanism; an electric push rod is fixedly installed on the top plate, and the output shaft end of the electric push rod is fixedly connected to the movable plate.

[0007] The flipping assembly includes a clamping mechanism and a second servo motor; the clamping mechanism includes a block, the middle of which is fixedly connected to the output shaft end of the second servo motor.

[0008] The clamping mechanism further includes guide rods, grippers, soft pads, a dual-axis motor, screws, and nuts. A guide rod is fixedly installed on each side of the block, and grippers are provided on the guide rods. Each gripper has a guide hole, and the guide rod is clearance-fitted to the guide hole. The dual-axis motor is fixedly installed on the block, and a screw is fixedly installed on each of the two conveying shafts of the dual-axis motor, with the screw threads at both ends of the motor rotating in opposite directions. A nut is fixedly installed on the end of each gripper near the block, and the screw is threadedly connected to the nut. A soft pad is fixedly adhered to the gripper.

[0009] A guide sleeve is fixedly installed on the outer wall of the second servo motor on the side away from the clamping mechanism. A sleeve hole is provided inside the guide sleeve, and a gear column is connected to the sleeve hole with clearance fit.

[0010] The gear column passes through a slot on the movable plate, and a first rotating shaft is fixedly connected to the top of the gear column. The first rotating shaft is rotatably installed with the bottom of the top plate. A ring of evenly distributed tooth grooves is formed on the cylindrical surface of the gear column, and the gear column is connected to a cylindrical gear through the tooth grooves.

[0011] A protective shell is fixedly installed on the bottom surface of the movable plate. A second rotating shaft is rotatably installed inside the protective shell. The lower end of the second rotating shaft extends to the bottom of the protective shell and is fixedly sleeved with a cylindrical gear at the lower end of the second rotating shaft. A third servo motor is fixedly installed on the outer wall of the protective shell. A worm gear is fixedly connected to the output shaft end of the third servo motor. The worm gear is rotatably installed inside the protective shell. The worm gear is meshed with a worm wheel. The worm wheel is fixedly sleeved on the shaft surface of the second rotating shaft located inside the protective shell.

[0012] The aforementioned optical element surface inspection and conveying device further includes a vacuum cleaner and a diverter tube. The vacuum cleaner has a vacuum tube installed at its suction end, and a connection port is installed in the middle of the diverter tube. The connection port is connected to the end of the vacuum tube away from the vacuum cleaner. Both ends of the diverter tube are fixedly fitted with caps. Multiple interfaces are installed at equal intervals along the length of the bottom of the diverter tube. The interfaces penetrate the top plate and extend to the bottom of the top plate. A rubber corrugated tube is fixedly sleeved at the bottom of the interface, and the bottom end of the rubber corrugated tube is connected to the top of the vacuum hood.

[0013] The aforementioned optical element surface inspection and conveying device includes a conveying mechanism comprising a conveyor belt, a drive roller, a driven roller, and a carrier roller. The drive roller and the driven roller are rotatably mounted inside both ends of a conveying trough. The conveyor belt is wound around the drive roller and the driven roller, and the top surface of the conveyor belt forms a conveying surface. There are several carrier rollers, which are fixedly installed at equal intervals inside the conveying trough. The carrier rollers are in contact with the top and bottom surfaces of the conveyor belt. A first servo motor is fixedly mounted on the platform, and the output shaft end of the first servo motor is fixedly connected to the middle of the drive roller.

[0014] A method for inspecting and transporting the surface of an optical component, comprising the following steps: An external power supply and control device are provided for power supply and electrical control, wherein the first observation hole is used to mount an external detection camera; The movable plate is driven by an electric push rod to slide vertically in the conveying trough to achieve height adjustment. This is used to adjust the distance between the dust collection port at the bottom of the dust collection hood and the conveying surface of the conveyor belt, ensuring that optical elements of different thicknesses can pass through and that the dust collection port is close to and abuts against the top of the optical elements of different thicknesses. When the conveying mechanism is working, the first servo motor drives the active roller to rotate, and together with the driven roller, drives the conveyor belt to flow. The optical element is put into the feed port of the conveying trough and is conveyed to the discharge port position through the conveying surface of the conveyor belt. During the vacuuming process, the suction tube, diverter tube, interface, and rubber corrugated tube guide the airflow, creating negative pressure at the bottom of the vacuum hood. After the optical element moves to the bottom of the vacuum hood, the dust on the upper surface enters through the suction port at the bottom of the vacuum hood, and then sequentially enters the vacuum cleaner through the rubber corrugated tube, interface, diverter tube, and suction tube to achieve vacuuming. The rubber corrugated tube is flexible and does not affect the height adjustment of the vacuum hood. After the optical element passes through the dust suction port at the bottom of the dust hood, it moves into the clamping mechanism of the flip assembly. Initially, the two jaws of the clamping mechanism open with their jaws facing to the left. The screw is driven to rotate by a dual-axis motor. The screw and nut are threaded together and guided by the guide hole and guide rod, thus realizing the jaw drive. The two screws in the clamping mechanism have opposite threads, so the two jaws move closer or further apart. When the two jaws are close together, they are used to clamp the optical element. After the clamping mechanism in the flipping assembly clamps the optical element, it is driven by a second servo motor to flip the clamping mechanism and the optical element together. During the flipping process, the conveyor belt's conveyor surface acts as a barrier, pushing the second servo motor to slide along the length of the gear column via a guide sleeve. Specifically, the clamping mechanism flips 180°, changing the orientation of the optical element by switching its top and bottom surfaces. Further, a third servo motor drives the worm gear to rotate. Through the meshing of the worm gear and worm wheel, the second rotating shaft and the cylindrical gear rotate together. The meshing of the cylindrical gear and the gear column... The gear column rotates, causing the guide sleeve to rotate 180° with it, thus rotating the clamping mechanism and optical element from the left to the right side of the gear column. Then, the two grippers move away from each other, releasing the optical element. The optical element is then transported by the conveying mechanism, allowing it to leave the clamping mechanism. Immediately after the optical element leaves the clamping mechanism, the clamping mechanism reverses via a third servo motor, resetting the clamping mechanism. A flipping component is installed between every two dust collection hoods, allowing each hood to vacuum the top and bottom surfaces of the optical element separately. Multiple dust collection hoods enable multiple vacuuming operations on both the top and bottom surfaces. After being conveyed and vacuumed, the optical element moves to a first observation hole position. A detection camera takes a picture of the surface of the optical element through a second observation hole, and the image is used to determine whether there are scratches and cracks. Then, the optical element is flipped by a flipping assembly between the two second observation holes, and the top and bottom sides are swapped. The detection camera in another first observation hole takes a picture of the surface of the optical element, and the image is used to determine whether there are scratches and cracks, thus achieving a preliminary inspection of the appearance of both sides.

[0015] The advantages of the optical element surface inspection and conveying device of the present invention are: it can be applied to the dust removal process of optical elements of different thicknesses during conveying. Through the design of a movable plate with adjustable height and multiple dust suction hoods installed at equal intervals on the movable plate, the dust suction port at the bottom of the dust suction hood can be close to and abut against the top of the optical elements of different thicknesses during the conveying process of optical elements of different thicknesses by adjusting the height of the movable plate. This avoids the gap between the bottom of the dust suction hood and the optical element being too large, which would affect the dust suction effect. It ensures the dust suction effect during the conveying process of optical elements of different thicknesses. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the optical element surface detection and conveying device of the present invention; Figure 2 This is a schematic diagram of the movable plate at the left end of the conveyor trough and the structure below it. Figure 3 This is a schematic diagram of the movable plate and the structure below it at the right end of the conveyor trough. Figure 4 This is a schematic diagram of the clamping mechanism. Figure 5 This is a schematic diagram of the installation structure of the clamping mechanism; Figure 6 This is a schematic diagram of the structure of a gear spur and a cylindrical gear; Figure 7 This is a schematic diagram of the internal structure of the protective shell; Figure 8 A schematic diagram of the structure for mounting the guide rod and gripper; Figure 9 This is a schematic diagram of the guide sleeve and bushing structure; Figure 10 This is a schematic diagram of the conveying mechanism.

[0017] In the diagram: 1. Platform; 2. Vacuum cleaner; 3. Conveying trough; 4. Conveying mechanism; 401. Conveyor belt; 402. Driven roller; 403. Driven roller; 404. Carrier roller; 5. First servo motor; 6. Top plate; 7. Movable plate; 8. Electric push rod; 9. Diverter pipe; 10. Cover; 11. Connection port; 12. Vacuum pipe; 13. First observation hole; 14. Interface; 15. Rubber corrugated pipe; 16. Vacuum hood; 17. Clamping mechanism; 1701. Block ; 1702, Guide rod; 1703, Gripper; 1704, Soft pad; 1705, Dual-axis motor; 1706, Screw; 1707, Nut; 1708, Guide hole; 18, Second observation hole; 19, Second servo motor; 20, Guide sleeve; 2001, Sleeve hole; 21, Gear post; 22, Through slot; 23, First rotating shaft; 24, Protective shell; 25, Cylindrical gear; 26, Second rotating shaft; 27, Third servo motor; 28, Worm; 29, Worm wheel. Detailed Implementation

[0018] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Method 1 The following are specific embodiments of the optical element surface inspection and conveying device of the present invention.

[0020] The optical element surface inspection and conveying device in this specific embodiment, such as Figure 1-10As shown, the device includes a platform 1, with a conveying trough 3 extending along its length at the top. A conveying mechanism 4 is installed within the conveying trough 3, and an inlet and an outlet are respectively located at the left and right ends of the conveying trough 3. A height-adjustable movable plate 7 is installed on the top of the conveying mechanism 4, and the movable plate 7 is vertically slidably installed inside the conveying trough 3. Several dust suction hoods 16 are evenly spaced on the surface of the movable plate 7, with the suction ports of the dust suction hoods 16 facing the conveying surface above the conveying mechanism 4. The top of the platform 1 is fixed... A top plate 6 is fixedly installed, and an electric push rod 8 is fixedly installed on the top surface of the top plate 6. The output shaft end of the electric push rod 8 is fixedly connected to the movable plate 7. The electric push rod 8 drives the movable plate 7 to move up and down, so that the movable plate 7 slides vertically in the conveying groove 3 to adjust the height position. This is used to adjust the distance between the dust suction port at the bottom of the dust suction hood 16 and the conveying surface of the conveyor belt 401, so as to ensure the passage of optical elements of different thicknesses and to make the dust suction port close to and abut against the top of the optical elements of different thicknesses.

[0021] like Figure 2-3 As shown, in specific implementation, two first observation holes 13 are opened on the end plate of the top plate 6 near the discharge port, and two second observation holes 18 are opened on the end plate of the movable plate 7 near the discharge port. The second observation holes 18 are located below the first observation holes 13. A flipping assembly is provided between two adjacent dust collection hoods 16 and between the two second observation holes 18, and the flipping assembly is placed on the conveying surface above the conveying mechanism 4. By providing a flipping assembly between every two dust collection hoods 16, the two dust collection hoods 16 can respectively perform dust collection on the upper and lower surfaces of the optical element. Through several dust collection hoods 16, multiple dust collections on both the upper and lower surfaces are achieved, ensuring that both surfaces are clean and dust-free. Effect: After being conveyed and vacuumed, the optical element moves to a first observation hole 13. The detection camera on the first observation hole 13 takes pictures of the surface of the optical element through a second observation hole 18. The staff watches the picture and judges whether there are scratches, cracks, etc. for preliminary appearance inspection. Then, the optical element is flipped by the flipping assembly between the two second observation holes 18, and the top and bottom sides are swapped. The other side of the optical element is inspected by the detection camera in the other first observation hole 13. This achieves appearance inspection of both sides of the optical element. The unqualified optical elements are screened out through the preliminary inspection and then sent to the next inspection equipment for subsequent inspection and measurement processes.

[0022] like Figure 4-5As shown, as a specific technical solution, the flipping assembly includes a clamping mechanism 17 and a second servo motor 19; the clamping mechanism 17 includes a block 1701, the middle part of which is fixedly connected to the output shaft end of the second servo motor 19, and the second servo motor 19 provides drive for flipping.

[0023] like Figure 4 As shown, the clamping mechanism 17 further includes a guide rod 1702, a gripper 1703, a soft pad 1704, a dual-axis motor 1705, a screw 1706, and a nut 1707; a guide rod 1702 is fixedly installed on both sides of the block 1701, and a gripper 1703 is provided on the guide rod 1702. A guide hole 1708 is provided on the gripper 1703, and the guide rod 1702 is clearance-fitted with the guide hole 1708. The dual-axis motor 1705 is fixedly installed on the block 1701, and a screw 1706 is fixedly installed on each of the two conveying shaft ends of the dual-axis motor 1705, with the screws 1706 at both ends of the dual-axis motor 1705 having opposite thread directions; A nut 1707 is fixedly installed at one end of the gripper 1703 near the block 1701, and the screw 1706 is threadedly connected to the nut 1707. A soft pad 1704 is fixedly adhered to the gripper 1703. The screw 1706 is driven to rotate by the dual-axis motor 1705, and the screw 1706 and the nut 1707 are screwed together. With the guidance of the guide hole 1708 and the guide rod 1702, the gripper 1703 is driven. The two screws 1706 in the clamping mechanism 17 have opposite threads, so the two grippers 1703 can move closer to each other and further away from each other. When the two grippers 1703 move closer to each other, they can clamp the optical element; when they move further away from each other, they can release the optical element.

[0024] like Figure 5 As shown, a guide sleeve 20 is fixedly installed on the outer wall of the second servo motor 19 away from the clamping mechanism 17. The guide sleeve 20 has a sleeve hole 2001, and a gear column 21 is connected to the sleeve hole 2001 with clearance fit. This vertical sliding installation ensures that the second servo motor 19 can move vertically when flipping, avoiding obstruction of the flipping adjustment.

[0025] like Figure 5As shown, as a specific technical solution, the gear column 21 penetrates the through slot 22 on the surface of the movable plate 7, and a first rotating shaft 23 is fixedly connected to the top of the gear column 21. The first rotating shaft 23 is rotatably installed on the bottom of the top plate 6. A ring of evenly distributed tooth grooves is formed on the cylindrical surface of the gear column 21, and the gear column 21 is connected to a cylindrical gear 25 through the tooth grooves. A protective shell 24 is fixedly installed on the bottom plate surface of the movable plate 7. A second rotating shaft 26 is rotatably installed inside the protective shell 24. The lower end of the second rotating shaft 26 extends to the bottom of the protective shell 24, and the lower end of the second rotating shaft 26 is fixedly sleeved with the cylindrical gear 25. A third servo motor 27 is fixedly installed on the outer wall of the protective shell 24. A worm gear 28 is fixedly connected to the output shaft end of the 7. The worm gear 28 is rotatably installed inside the protective shell 24. The worm gear 28 is meshed with a worm wheel 29. The worm wheel 29 is fixedly sleeved onto the shaft surface of the second rotating shaft 26 located inside the protective shell 24. The third servo motor 27 drives the worm gear 28 to rotate. Through the meshing transmission between the worm gear 28 and the worm wheel 29, the second rotating shaft 26 and the cylindrical gear 25 are driven to rotate together. Through the meshing transmission between the cylindrical gear 25 and the gear column 21, the gear column 21 rotates. When the gear column 21 rotates, the guide sleeve 20 rotates together, specifically by 180°, so that the clamping mechanism 17 and the optical element clamped thereon can exchange positions on the left and right sides of the gear column 21.

[0026] like Figure 1-3 As shown, in a specific implementation, it also includes a vacuum cleaner 2 and a diversion pipe 9. The vacuum cleaner 2 has a suction pipe 12 connected to its suction end. A connection port 11 is connected to the middle of the diversion pipe 9, and the connection port 11 is connected to the end of the suction pipe 12 furthest from the vacuum cleaner 2. Both ends of the diversion pipe 9 are fixedly fitted with caps 10. Multiple interfaces 14 are evenly spaced along the length of the bottom of the diversion pipe 9. Each interface 14 penetrates the top plate 6 and extends below the top plate 6. A rubber corrugated pipe 15 is fixedly sleeved at the bottom of each interface 14. The bottom end of the vacuum cleaner 16 is connected to the top end of the vacuum hood 16. During the vacuuming process, the vacuum cleaner 2 guides the air through the vacuum hose 12, the diverter 9, the interface 14, and the rubber corrugated hose 15, creating a negative pressure at the bottom end of the vacuum hood 16. The optical element moves to the bottom end of the vacuum hood 16, and the dust and dirt on the upper surface of the optical element enter through the vacuum port at the bottom end of the vacuum hood 16. Then, it enters the vacuum cleaner 2 through the rubber corrugated hose, the interface 14, the diverter 9, and the vacuum hose 12 in sequence, thus achieving vacuuming. The rubber corrugated hose 15 has a certain degree of flexibility and will not affect the height adjustment of the vacuum hood 16.

[0027] like Figure 10As shown, the conveying mechanism 4 includes a conveyor belt 401, a drive roller 402, a driven roller 403, and carrier rollers 404. The drive roller 402 and the driven roller 403 are rotatably mounted inside both ends of the conveying trough 3. The conveyor belt 401 is wound around the drive roller 402 and the driven roller 403, and the top surface of the conveyor belt 401 forms a conveying surface. There are several carrier rollers 404, and these carrier rollers 404 are fixedly installed at equal intervals inside the conveying trough 3. Roller 404 contacts the top and bottom surfaces of conveyor belt 401; a first servo motor 5 is fixedly installed on the platform 1, and the output shaft end of the first servo motor 5 is fixedly connected to the middle of the active roller 402; the first servo motor 5 drives the active roller 402 to rotate, and in conjunction with the driven roller 403, can drive the conveyor belt 401 to flow. The inlet of the conveying trough 3 is used for the placement of optical element materials, and the conveying surface of the conveyor belt 401 provides a support for placement and conveying to the outlet position.

[0028] Method 2 The following are specific embodiments of the optical element surface detection and conveying method of the present invention.

[0029] The optical component surface inspection and conveying method according to this specific embodiment includes the following steps: An external power supply and control device are provided for power supply and electrical control, wherein the first observation hole 13 is used to mount an external detection camera; The movable plate 7 is driven by the electric push rod 8 to slide vertically in the conveying groove 3 to achieve height adjustment. This is used to adjust the distance between the dust suction port at the bottom of the dust suction hood 16 and the conveying surface of the conveyor belt 401, ensuring that optical elements of different thicknesses can pass through and that the dust suction port is close to and abuts against the top of the optical elements of different thicknesses. When the conveying mechanism 4 is working, the first servo motor 5 drives the active roller 402 to rotate, and in conjunction with the driven roller 403, drives the conveyor belt 401 to flow. The optical element is put into the inlet of the conveying trough 3 and is conveyed to the outlet position through the conveying surface of the conveyor belt 401. During the vacuuming process, the vacuum cleaner 2 guides the air through the suction pipe 12, the diverter pipe 9, the interface 14, and the rubber corrugated pipe 15, creating a negative pressure at the bottom of the vacuum hood 16. After the optical element moves to the bottom of the vacuum hood 16, the dust on the upper surface enters through the suction port at the bottom of the vacuum hood 16, and then sequentially enters the vacuum cleaner 2 through the rubber corrugated pipe 15, the interface 14, the diverter pipe 9, and the suction pipe 12, thus achieving vacuuming. The rubber corrugated pipe 15 is elastic and does not affect the height adjustment of the vacuum hood 16. After the optical element passes through the dust suction port at the bottom of the dust suction hood 16, it moves into the clamping mechanism 17 of the flip assembly. Initially, the two jaws 1703 of the clamping mechanism 17 have their openings facing to the left. The screw 1706 is driven to rotate by the dual-axis motor 1705. The screw 1706 is threadedly connected to the nut 1707 and guided by the guide hole 1708 and the guide rod 1702, thus driving the jaws 1703. The threads of the two screws 1706 in the clamping mechanism 17 rotate in opposite directions, so that the two jaws 1703 move closer to each other or further away from each other. When the two jaws 1703 are close to each other, they are used to clamp the optical element. After the clamping mechanism 17 in the flipping assembly clamps the optical element, it is driven by the second servo motor 19 to flip the clamping mechanism 17 and the optical element together. During the flipping process, the clamping mechanism 17 is blocked by the conveying surface of the conveyor belt 401, which pushes the second servo motor 19 to slide along the length of the gear column 21 through the guide sleeve 20. Specifically, the clamping mechanism 17 flips 180 degrees, and the upper and lower sides of the optical element are reversed, changing the orientation of the optical element. Further, the third servo motor 27 drives the worm gear 28 to rotate. Through the meshing of the worm gear 28 and the worm wheel 29, the second rotating shaft 26 and the cylindrical gear 25 are driven to rotate together. Through the meshing of the cylindrical gear 25 and the gear column 29, the second rotating shaft 26 and the cylindrical gear 25 rotate together. The meshing of gear 1 causes gear column 21 to rotate, and guide sleeve 20 rotates 180° with gear column 21, thereby rotating clamping mechanism 17 and optical element from the left side to the right side of gear column 21; then the two grippers 1703 move away from each other, releasing the optical element, and then it is transported by conveying mechanism 4, so that the optical element leaves clamping mechanism 17. After clamping mechanism 17 leaves clamping mechanism 17, clamping mechanism 17 immediately reverses through third servo motor 27 driving worm gear 28 to reset clamping mechanism 17; by setting a flipping component between each pair of dust collection hoods 16, the two dust collection hoods 16 respectively clean the upper and lower surfaces of the optical element, and multiple dust collection hoods 16 are used to achieve multiple cleaning of the upper and lower surfaces; After being conveyed and vacuumed, the optical element moves to a first observation hole 13. A detection camera takes a picture of the surface of the optical element through a second observation hole 18. The image is used to determine whether there are scratches or cracks. Then, the optical element is flipped by a flipping assembly between the two second observation holes 18, and the top and bottom sides are swapped. The detection camera in another first observation hole 13 takes a picture of the surface of the optical element, and the image is used to determine whether there are scratches or cracks. This achieves a preliminary inspection of the appearance of both sides.

[0030] It should be noted that the circuits, electronic components and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon.

[0031] It should also be noted that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An optical element surface inspection and conveying device, comprising a platform (1), wherein a conveying groove (3) is provided on the top of the platform (1) along its length, a conveying mechanism (4) is provided in the conveying groove (3), and an inlet and an outlet are respectively provided at the left and right ends of the conveying groove (3); characterized in that: The top of the conveying mechanism (4) is provided with a movable plate (7) whose height position can be adjusted, and the movable plate (7) is slidably installed vertically into the interior of the conveying trough (3); A plurality of dust collection hoods (16) are installed at equal intervals on the surface of the movable plate (7), and the dust collection ports of the dust collection hoods (16) face the conveying surface above the conveying mechanism (4). A top plate (6) is fixedly installed on the top of the platform (1); two first observation holes (13) are opened on the end plate of the top plate (6) near the discharge port, and two second observation holes (18) are opened on the end plate of the movable plate (7) near the discharge port. The second observation holes (18) are located below the first observation holes (13); a flipping component is provided between the two adjacent dust collection hoods (16) and between the two second observation holes (18), and the flipping component is placed on the conveying surface above the conveying mechanism (4); an electric push rod (8) is fixedly installed on the top plate of the top plate (6), and the output shaft end of the electric push rod (8) is fixedly connected to the movable plate (7); The flipping assembly includes a clamping mechanism (17) and a second servo motor (19); the clamping mechanism (17) includes a block (1701), the middle part of which is fixedly connected to the output shaft end of the second servo motor (19); A guide sleeve (20) is fixedly installed on the outer wall of the second servo motor (19) away from the clamping mechanism (17). A sleeve hole (2001) is provided inside the guide sleeve (20), and a gear column (21) is connected to the sleeve hole (2001) with clearance fit.

2. The optical element surface inspection and conveying device according to claim 1, characterized in that: The clamping mechanism (17) further includes a guide rod (1702), a gripper (1703), a soft pad (1704), a dual-axis motor (1705), a screw (1706), and a nut (1707); a guide rod (1702) is fixedly installed on both sides of the block (1701), and the gripper (1703) is provided on the guide rod (1702). The gripper (1703) has a guide hole (1708) on it. The guide rod (1702) is closed with the guide hole (1708). The block (1701) is closed with the guide hole (1708). The dual-axis motor (1705) is fixedly installed on the block (1701). A screw (1706) is fixedly installed on each of the two conveying shafts of the dual-axis motor (1705), and the screws (1706) at both ends of the dual-axis motor (1705) have opposite threads. A nut (1707) is fixedly installed on one end of the gripper (1703) near the block (1701), and the screw (1706) is threadedly connected to the nut (1707). A soft pad (1704) is fixedly adhered to the gripper (1703).

3. The optical element surface inspection and conveying device according to claim 1, characterized in that: The gear column (21) passes through the through slot (22) on the surface of the movable plate (7), and the top of the gear column (21) is fixedly connected to the first rotating shaft (23). The first rotating shaft (23) is rotatably installed on the bottom of the top plate (6). A ring of evenly distributed tooth grooves is opened on the cylindrical surface of the gear column (21), and the gear column (21) is connected to the cylindrical gear (25) through the tooth groove meshing.

4. The optical element surface inspection and conveying device according to claim 3, characterized in that: A protective shell (24) is fixedly installed on the bottom plate surface of the movable plate (7). A second rotating shaft (26) is rotatably installed inside the protective shell (24). The lower end of the second rotating shaft (26) extends to the bottom of the protective shell (24), and the lower end of the second rotating shaft (26) is fixedly sleeved with a cylindrical gear (25). A third servo motor (27) is fixedly installed on the outer wall of the protective shell (24). A worm gear (28) is fixedly connected to the output shaft end of the third servo motor (27). The worm gear (28) is rotatably installed inside the protective shell (24). The worm gear (28) is meshed with a worm wheel (29). The worm wheel (29) is fixedly sleeved on the shaft surface of the second rotating shaft (26) located inside the protective shell (24).

5. The optical element surface inspection and conveying device according to claim 1, characterized in that: It also includes a vacuum cleaner (2) and a diverter pipe (9). The vacuum cleaner (2) is connected to a vacuum pipe (12) at the vacuuming end. The diverter pipe (9) is connected to a connection port (11) in the middle. The connection port (11) is connected to the end of the vacuum pipe (12) away from the vacuum cleaner (2). Both ends of the diverter pipe (9) are fixedly fitted with caps (10). The bottom of the diverter pipe (9) is connected to multiple interfaces (14) at equal intervals along the length direction. The interfaces (14) penetrate the top plate (6) and extend to the bottom of the top plate (6). The bottom end of the interface (14) is fixedly fitted with a rubber corrugated pipe (15). The bottom end of the rubber corrugated pipe (15) is connected to the top of the vacuum cover (16).

6. The optical element surface inspection and conveying device according to claim 1, characterized in that: The conveying mechanism (4) includes a conveyor belt (401), a drive roller (402), a driven roller (403), and a carrier roller (404). The drive roller (402) and the driven roller (403) are rotatably installed at the two ends of the conveying trough (3). The drive roller (402) and the driven roller (403) are wound with the conveyor belt (401). The top surface of the conveyor belt (401) forms a conveying surface. There are several carrier rollers (404), and several carrier rollers (404) are fixedly installed at equal intervals inside the conveying trough (3). The carrier rollers (404) are in contact with the top and bottom surfaces of the conveyor belt (401). A first servo motor (5) is fixedly installed on the platform (1). The output shaft end of the first servo motor (5) is fixedly connected to the middle part of the drive roller (402).

7. A method for inspecting and transporting the surface of an optical element, characterized in that: The steps are as follows: An external power supply and control device are provided for power supply and electrical control, wherein the first observation hole (13) is used to install an external detection camera; The movable plate (7) is driven by the electric push rod (8) to slide vertically in the conveying groove (3) to achieve height adjustment. This is used to adjust the distance between the dust suction port at the bottom of the dust suction hood (16) and the conveying surface of the conveyor belt (401), ensuring that optical elements of different thicknesses can pass through, and making the dust suction port close to and abut against the top of optical elements of different thicknesses. When the conveying mechanism (4) is working, the first servo motor (5) drives the active roller (402) to rotate, and cooperates with the driven roller (403) to drive the conveyor belt (401) to flow. The optical element is put into the inlet of the conveying trough (3) and is conveyed to the outlet position through the conveying surface of the conveyor belt (401). During the vacuuming process, the vacuum cleaner (2) guides the air through the suction pipe (12), the diverter pipe (9), the interface (14) and the rubber corrugated pipe (15), creating a negative pressure at the bottom of the vacuum cover (16). After the optical element moves to the bottom of the vacuum cover (16), the dust on the upper surface enters through the suction port at the bottom of the vacuum cover (16), and then enters the vacuum cleaner (2) through the rubber corrugated pipe (15), the interface (14), the diverter pipe (9) and the suction pipe (12) in sequence, thus achieving vacuuming. The rubber corrugated pipe (15) is elastic and does not affect the height adjustment of the vacuum cover (16). After the optical element passes through the dust suction port at the bottom of the dust suction hood (16), it moves into the clamping mechanism (17) of the flip assembly. Initially, the two jaws (1703) of the clamping mechanism (17) open their jaws to the left. The screw (1706) is driven to rotate by the dual-axis motor (1705). The screw (1706) is threadedly connected to the nut (1707). The guide hole (1708) and the guide rod (1702) guide the jaws (1703) to drive them. The threads of the two screws (1706) in the clamping mechanism (17) rotate in opposite directions, so that the two jaws (1703) move closer to each other or further away from each other. When the two jaws (1703) are close to each other, they are used to clamp the optical element. After the clamping mechanism (17) in the flipping assembly clamps the optical element, it is driven by the second servo motor (19) to flip the clamping mechanism (17) and the optical element together. During the flipping process, the clamping mechanism (17) is blocked by the conveyor surface of the conveyor belt (401), and the second servo motor (19) is pushed to slide along the length direction of the gear column (21) through the guide sleeve (20). Specifically, the clamping mechanism (17) flips 180°, and the upper and lower sides of the optical element are reversed, changing the orientation of the optical element. Further, the third servo motor (27) drives the worm (28) to rotate. Through the meshing of the worm (28) and the worm wheel (29), the second rotating shaft (26) and the cylindrical gear (25) are driven to rotate together. Through the meshing of the cylindrical gear (25) and the gear column (21), the second rotating shaft (26) and the cylindrical gear (25) rotate together. The meshing of 21) causes the gear column (21) to rotate, and the guide sleeve (20) rotates 180° with the gear column (21), thereby causing the clamping mechanism (17) and the optical element to rotate from the left side to the right side of the gear column (21); then the two grippers (1703) move away from each other, releasing the optical element, and then conveying it through the conveying mechanism (4), so that after the optical element leaves the clamping mechanism (17), the clamping mechanism (17) immediately reverses through the third servo motor (27) driving the worm (28) to reset the clamping mechanism (17); by setting a flipping component between each pair of dust collection hoods (16), the two dust collection hoods (16) respectively clean the upper and lower surfaces of the optical element, and multiple dust collection hoods (16) are used to achieve multiple cleaning of the upper and lower surfaces; After being conveyed and vacuumed, the optical element moves to a first observation hole (13). The detection camera takes a picture of the surface of the optical element through the second observation hole (18). Based on the picture, it is determined whether there are scratches and cracks. Then, the optical element is flipped through the flipping assembly between the two second observation holes (18), and the top and bottom sides are swapped. The detection camera in the other first observation hole (13) takes a picture of the surface of the optical element. Based on the picture, it is determined whether there are scratches and cracks, thus realizing the preliminary inspection of the appearance of both sides.

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