Large diameter optical lens mounting device and method using magnetic composite suction

Abstract

The present invention discloses a large-diameter optical lens mounting device and method by magnetic composite adsorption. The device includes a support frame, a motor, a magnetic vacuum adsorption cup, a magnetic base, and a traction frame. A telescopic measuring rod is attached to the motor, and telescopic flexible ropes are provided at both ends of the measuring rod. A vertically movable magnetic vacuum adsorption cup is attached to the middle of the measuring rod, and a flexible gasket is provided at the mouth of the adsorption cup. The magnetic base includes a magnetic conductor housing and a rotatable long magnet. A tray is attached to the magnetic base, and an annular buffer component is provided on the surface of the tray. The present invention can be adapted to the mounting of optical lenses with different diameters and mirror surface shapes, has a stable and controllable adsorption force, causes less damage to the film layer on the surface of the optical lens, has good alignment between the center of the suction cup and the center of the lens, and when performing eccentricity adjustment, the stress of the lens does not affect the quality of the image formed, and since it is offset from the center, the lens can be prevented from falling. When multiple optical lenses are mounted, the device of the present invention can be reused.

Description

[Technical Field]

[0001] The present invention belongs to the field of precision optical system assembly and calibration, and is mainly applied to the assembly of precision optical lens groups, especially to large-diameter optical concave-convex lenses with multiple coated lens groups. [Background technology]

[0002] With the continuous advancement of science and technology, optical lenses are becoming more and more widely used. Currently, manual suction cups or conveying are the primary methods used for assembly and adjustment of large-diameter optical lenses. However, these methods have significant limitations. First, the manual suction force is unstable, making them prone to falling during assembly and irreversible damage to the optical lens. Second, while manual suction cups have a consistent diameter and shape, optical lenses have both concave and convex surfaces and vary greatly in radius of curvature. For concave and convex lenses with small radii of curvature, the suction force is insufficient. Furthermore, because optical lenses have large diameters, the suction position must be located at the center of the lens. However, in actual work, visual inspection is required, and the suction cup tends to wobble after suction, making it difficult to accurately align the center of the suction cup with the center of the lens. This limits the applicability of manual suction cups.

[0003] However, optical lens mounting tools that use magnetic suction cannot control the strength of the magnetic force, making them prone to accidents such as falling if the optical lens is very heavy. If the optical lens is very light, the lower magnet may suddenly become attracted to the lens as the upper magnet approaches, damaging the lens. While conventional optical lens assembly devices can successfully mount small-diameter optical lenses, not only is the suction power insufficient for medium- and large-diameter optical lenses, but for heavy lenses, it is difficult to even place the lens in the lens holder before mounting. Furthermore, repeated vacuum suction of the optical lens leaves suction marks that can damage the film layer. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to overcome at least one of the drawbacks described in the above-mentioned prior art, the present invention provides a suction attachment tool that can accommodate different aperture diameters and mirror surface shapes, has controllable suction force, and causes less damage to the surface film layer. [Means for solving the problem]

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a magnetic composite suction mounting device for large-diameter optical lenses, the device comprising: a support frame, a motor, a magnetic vacuum suction cup, a magnetic base, a measuring rod, a flexible rope, a gas pump, and a traction frame for mounting an optical lens; the measuring rod and the flexible rope can be extended or retracted by the motor; the gas pump is connected to the support frame by a wire rope at a position corresponding to the center of the measuring rod; a driving mechanism for driving the gas pump to move up and down is connected to the wire rope; the magnetic vacuum suction cup is connected to the underside of the gas pump by a gas guide pipe; a flexible gasket is installed at the mouth of the magnetic vacuum suction cup; the magnetic base is placed under the magnetic vacuum suction cup in use; the magnetic base comprises a magnetic conductor housing and a cavity within the magnetic conductor housing; a long magnet is installed in the cavity; a long magnet rotation control part is installed in the magnetic conductor housing for controlling the rotation of the long magnet; magnetic isolation parts are installed on the upper and lower sides of the cavity; an exchangeable tray is installed on the magnetic base; and an annular buffer part is installed on the surface of the tray.

[0006] Furthermore, the support frame is a gantry that can move back and forth.

[0007] Furthermore, the magnetic vacuum suction cup is made of cast iron material and has a diameter smaller than the diameter of the optical lens, and the tray is made of flexible material.

[0008] Furthermore, the magnetic vacuum suction cup has a conical hollow passage inside, the end of the passage with a larger diameter is the suction end, and the flexible gasket is provided at the suction end.

[0009] Furthermore, a wire rope is further connected between the magnetic vacuum suction cup and the gas pump, and an expandable reinforced plastic bellows is used as the gas guide pipe.

[0010] Furthermore, the measuring rod is provided with a scale for marking the diameter of the optical lens and the traction frame.

[0011] Furthermore, the magnetic isolation component is a copper plate.

[0012] Furthermore, the motor includes a first motor and a second motor, and both the first motor and the second motor are fixedly attached to a support frame; the measuring rod includes a left telescopic rod and a right telescopic rod, a gear is connected to an output end of the first motor, the left telescopic rod is engaged with the gear on one side, and the right telescopic rod is engaged with the gear on the opposite side, and the measuring rods are extended and retracted in the horizontal direction by being driven by the first motor; A fixed pulley is attached to each end of the left telescopic rod and the right telescopic rod, and the middle part of the flexible rope is attached to a second motor, one end of which passes through the left fixed pulley of the right telescopic rod and the right fixed pulley in this order before hanging down from the right end of the right telescopic rod, and the other end of which passes through the right fixed pulley of the left telescopic rod and the left fixed pulley in this order before hanging down from the left end of the left telescopic rod, and the flexible rope is extended or retracted along the end of the measuring rod by driving the second motor.

[0013] A method for mounting a large diameter optical lens by magnetic composite attraction, which utilizes the above device, includes the following steps: Step 1: Based on the concave and convex shape of the optical lens, select an appropriate tray and attach it to the magnetic base. Place the optical lens on the tray so that their centers are aligned. The tray and the optical lens are separated by an annular buffer part. The long magnet is rotated by the long magnet rotation control part until it is in a vertical position. At this time, the magnetic base is not magnetic. Step 2: Adjust the extension and contraction of the measuring rod to bring the flexible ropes at both ends into close contact with both sides of the optical lens. At this time, the value read by the measuring rod is equal to the diameter of the optical lens, and the magnetic vacuum suction cup is positioned at the center of the optical lens. The magnetic vacuum suction cup is controlled to descend to the central surface of the optical lens, and the long magnet rotation control part is used to rotate the long magnet until it is horizontal. At this time, the magnetic base has ferromagnetic properties, so it can stably adsorb the magnetic vacuum suction cup, and the optical lens is stably held by the magnetic vacuum suction cup and the magnetic base. In step 3, the gas pump is turned on to create a negative pressure environment inside the magnetic vacuum suction cup, and the gas extraction amount of the gas pump is adjusted so that the optical lens can be stably adsorbed to the magnetic vacuum suction cup. Step 4: Adjust the height of the magnetic vacuum suction cup to lift the optical lens to a preset height, select a towing frame of the appropriate size based on the measurement result of step 2, place the towing frame at a position corresponding to the flexible ropes on both ends of the measuring rod, and fasten the flexible ropes to the towing frame. At this time, the adsorbed optical lens is located at the center of the towing frame, and adjust the height of the magnetic vacuum suction cup to place the optical lens at the appropriate position on the base of the towing frame. In step 5, the long magnet is rotated by the long magnet rotation control part until it is in a vertical position, causing the magnetic base to lose its magnetism, and the magnetic base, tray, and annular buffer part are removed from the opening at the bottom of the towing frame. Step 6: Turn off the gas pump to let the magnetic vacuum suction cup lose its suction force, and then lift up the magnetic vacuum suction cup. Step 7: Using a flexible rope, place the traction frame containing the optical lens at an appropriate position on the large lens tube, and rotate the screws on both sides of the large lens tube to adjust and fix the traction frame to the middle position on the large lens tube. In step 8, steps 1 to 7 are repeated in this order for the other optical lenses to place them in the large lens tube. [Effects of the Invention]

[0014] The present invention has the following advantageous effects compared to the prior art. The device and method of the present invention can accommodate the installation of optical lenses of different diameters and mirror shapes, has stable and controllable suction force, and because the contact surface contains a flexible material, it causes little damage to the film layer on the surface of the optical lens. The center of the suction cup and the center of the lens are well aligned, so when performing subsequent decentering adjustment, the quality of the image formed will not be affected by stress on the lens. In addition, when visually checking the suction state, the problem of the lens falling off due to being off-center can be avoided. When installing multiple optical lenses, the device of the present invention can be used repeatedly. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a structural schematic diagram of a large-diameter optical lens mounting device using magnetic composite adsorption. [Figure 2] FIG. 2 is a detailed structural diagram of the grip portion in FIG. [Figure 3] FIG. 3 is a schematic diagram of the structure of negative pressure adsorption and magnetic gripping. [Figure 4] FIG. 4 is a structural schematic diagram of a flexible tray employed for a convex optical lens. [Figure 5] FIG. 5 is a structural schematic diagram of a flexible tray used for a concave optical lens. [Figure 6] FIG. 6 is a process diagram of a method for attaching a large-diameter optical lens by magnetic composite adsorption. [Figure 7]FIG. 7 is a structural diagram of the telescopic rod control by the first motor and the flexible rope control by the second motor. [Figure 8] FIG. 8 is a partially enlarged schematic diagram of the motor control structure. [Explanation of symbols]

[0016] (Symbols in the figure) 1. Gas pump 2 Magnetic Vacuum Suction Cups 3.1 Third motor 3.2 First motor 3.3 Second motor 4 Flexible gasket 5.1 Right telescopic rod 5.2 Left telescopic rod 5.3 Left fixed pulley 5.4 Right-hand fixed pulley 6 Gantry 7 Optical Lenses 8 Magnetic Base 9 trays 10 Annular buffer parts 11 Handle 12 Copper plate 13 Long magnet 14 Towing frame 15 screws 16 Large Lens Tube 17 Flexible Rope 18 Wire Rope 19 Gas guide pipe DETAILED DESCRIPTION OF THE INVENTION

[0017] The invention will now be described in more detail in conjunction with the drawings.

[0018] In this embodiment, in response to the difficulty of installing optical lenses with different diameters and different radii of curvature in a large-diameter optical system with a long lens tube, a magnetic composite adsorption large-diameter optical lens installation tool is provided, which can safely, reliably, and quickly assemble optical lenses with various different radii of curvature, protect the film layer on the lens surface, and facilitate the subsequent assembly and adjustment of multiple lens groups (such as decentering adjustment), thereby allowing large-diameter optical lenses to be installed safely and reliably within a lens tube.

[0019] As shown in Figures 1 to 3, the structure of the magnetic composite suction large-diameter optical lens mounting device of this embodiment includes a support frame, a motor (specifically, a first motor 3.2 and a second motor 3.3), a magnetic vacuum suction cup 2, a magnetic base 8, and a traction frame 14 for mounting the optical lens 7. A plurality of traction frames 14 of different sizes and models are provided, and a selection is made based on the shape and size of the optical lens 7 to be mounted. Each traction frame 14 is a small frame dedicated to a single optical lens 7. By providing a traction frame 14 dedicated to a single optical lens 7, the large-diameter optical lens mounting device can be reused; otherwise, when mounting multiple optical lenses 7, the magnetic base 8 would not be removable. Conventionally, all optical lenses 7 are mounted in the same lens tube, and when adjusting, the screws 15 on the side walls are moved by directly abutting against the side walls of the optical lens 7. If the screws 15 contact too much, stress is generated, affecting the quality of the image. In this embodiment, a dedicated traction frame 14 is used, and when decentering adjustment is performed in the latter half of the mounting process, the screws 15 contact only the outer wall of the traction frame 14, not the optical lens 7, thereby avoiding the problem of stress affecting the quality of the image.

[0020] Specifically, a gantry 6 is employed as the support frame, and the gantry 6 can move back and forth, and both the first motor 3.2 and the second motor 3.3 are fixedly attached to the gantry 6.

[0021] A measuring rod 5 extending along the horizontal direction is attached to the first motor 3.2, and most preferably, the first motor 3.2 is attached to the midpoint of the measuring rod 5. Preferably, the structure of the measuring rod 5 includes a left telescopic rod 5.2 and a right telescopic rod 5.1, as shown in Figures 7 and 8, and a gear is connected to the output end of the first motor 3.2, with the left telescopic rod 5.2 meshing with the gear on one side and the right telescopic rod 5.1 meshing with the gear on the opposite side, so that both ends of the measuring rod 5 can be extended and retracted in the horizontal direction by driving the first motor 3.2, and the position of the measuring rod 5 relative to the wire rope 18 is symmetrical, i.e., the length of the left telescopic rod 5.2 extending leftward from the connection point of the wire rope 18 is equal to the length of the right telescopic rod extending rightward from the connection point of the wire rope 18. Most preferably, the measuring rod is further provided with scales for marking the diameters of the optical lens 7 and the towing frame 14. A fixed pulley is attached to each end of the left telescopic rod 5.2 and the right telescopic rod 5.1, i.e., a left fixed pulley 5.3 and a right fixed pulley 5.4 are attached to each of the left telescopic rod 5.2 and the right telescopic rod 5.1, and the middle part of a flexible rope 17 is attached to the second motor 3.3, one end of which passes through the left fixed pulley 5.3 and the right fixed pulley 5.4 of the right telescopic rod 5.1 in this order and hangs down from the right end of the right telescopic rod 5.1, and the other end of which passes through the right fixed pulley 5.4 and the left fixed pulley 5.3 of the left telescopic rod 5.2 in this order and hangs down from the left end of the left telescopic rod 5.2, and the flexible rope 17 is extended or retracted along the end of the measuring rod 5 by driving the second motor 3.3.

[0022] The gas pump 1 is attached to the middle of the measuring rod 5 by a wire rope 18, which is connected to a third motor 3.1, which is fixed to the gantry 6. The magnetic vacuum suction cup 2 is connected to the gas pump 1 by a gas guide pipe 19, the diameter of which is smaller than the diameter of the optical lens 7. Most preferably, the magnetic vacuum suction cup 2 is also connected to the gas pump 1 by a wire rope, and the gas guide pipe may be an expandable reinforced plastic bellows. The magnetic vacuum suction cup 2 can be moved up and down by the drive of the third motor 3.1. An annular flexible gasket 4 is installed at the opening of the magnetic vacuum suction cup 2 to prevent scratches or dirt on the surface of the optical lens 7. In this embodiment, the magnetic vacuum suction cup 2 is preferably made of flexible cast iron. The interior of the magnetic vacuum suction cup 2 is a conical hollow passage, which is evacuated when the gas pump 1 is operating. The larger-diameter end of the passage is the suction end, and the flexible gasket 4 is installed at the suction end. When the optical lens 7 is sucked, the amount of gas extracted by the gas pump 1 may be adjusted depending on the weight of the sucked optical lens 7.

[0023] As shown in FIG. 2 , the magnetic base 8 includes a magnetic conductor housing made of a magnetically conductive material, a cavity formed within the magnetic conductor housing, a rotatable elongated magnet 13 disposed within the cavity, and a magnet rotation control element for controlling the rotation of the elongated magnet 13, specifically a handle 11 in this embodiment. Magnetic isolation elements are provided on the inner walls of the cavity on both the top and bottom sides, and are used to break the magnetic connection between the magnetic conductor and the elongated magnet, specifically a rectangular copper plate 12 in this embodiment. A tray 9 is attached to the magnetic base 8, preferably made of a flexible material and detachable. The tray 9 includes various models, both convex and concave, and is selected based on the shape and size of the optical lens to be mounted. FIGS. 4 and 5 show typical flexible tray structures used for convex and concave optical lenses. An annular cushioning element 10 is provided on the surface of the tray 9, which in this embodiment is a thin, elastic, annular pad. When in use, place the magnetic base 8 under the magnetic vacuum suction cup 2 and place the long magnet 13 horizontally by controlling the handle 11, i.e., when the north and south poles of the magnet face the magnetic conductor, the magnetic base 8 has ferromagnetic properties and can be used to adsorb the cast iron suction cup.

[0024] As shown in FIG. 6, the optical lens mounting method using the above-mentioned magnetic composite suction large diameter optical lens mounting device includes the following steps: In step 1, a suitable tray 9 is selected based on the concave and convex shape of the optical lens 7 and attached to the magnetic base 8. The optical lens 7 is placed on the tray 9 so that the centers are aligned. A cleaning tool is used to clean the optical lens 7 to be attached. The tray 9 and the optical lens 7 are separated by an annular buffer part 10. The magnetic base 8 is placed under the tray 9, and the long magnet 13 is rotated by the handle 11 until it is vertical. At this time, the magnetic base 8 has no magnetic field. See FIG. 6(a).

[0025] In step 2, the movement of the gantry 6 is controlled, and the first motor 3.2 adjusts the extension and contraction of the measuring rod 5 to bring the flexible ropes 17 at both ends of the measuring rod 5 into close contact with both sides of the optical lens 7. At this time, the length of the measuring rod 5 is approximately equal to the diameter of the optical lens 7, and the magnetic vacuum suction cup 2 is positioned approximately at the center of the optical lens 7. The third motor 3.1 controls the magnetic vacuum suction cup 2 to slowly descend to the central surface of the optical lens 7, and the handle 11 is used to rotate the long magnet 13 until it is horizontal. At this time, the magnetic base 8 has ferromagnetic properties, which can stably adsorb the magnetic vacuum suction cup 2. The optical lens 7 is stably held by the magnetic vacuum suction cup 2 and the magnetic base 8. The ring-shaped buffer 10 on the tray 9 prevents damage to the coated optical lens 7 during the gripping process. See Figures 6(b), 6(c), and 6(d).

[0026] In step 3, the gas pump 1 is turned on to create a negative pressure environment inside the magnetic vacuum suction cup 2, and the amount of gas extracted by the gas pump 1 is adjusted so that the optical lens 7 can be stably adsorbed to the magnetic vacuum suction cup 2. A flexible gasket 4 is provided on the end surface of the magnetic vacuum suction cup 2, so that the film group on the lens surface can be effectively protected even when subjected to strong adsorption. In step 4, the third motor 3.1 is controlled to adjust the height of the magnetic vacuum suction cup 2 with the wire rope 18 to lift the optical lens 7 to a predetermined height, and a traction frame 14 of an appropriate size is selected based on the measurement result of step 2. The traction frame 14 is placed at a position corresponding to the flexible rope 17 at both ends of the measuring rod 5, and the flexible rope 17 is fixed to the upper end surface of the traction frame 14. At this time, the adsorbed optical lens 7 is positioned approximately at the center of the traction frame 14, and the third motor 3.1 is controlled to adjust the height of the magnetic vacuum suction cup 2 with the wire rope 18 to lift the optical lens 7 to the appropriate position at the base of the traction frame 14. See Figure 6 (e) and (f).

[0027] In step 5, the long magnet 13 is rotated by the handle 11 until it is in a vertical position, the magnetic base 8 loses its magnetism, the magnetic force disappears, and the magnetic base 8, tray 9, and annular buffer part 10 are removed from the opening at the bottom of the traction frame 14. See (g) of Figure 6.

[0028] In step 6, the gas pump 1 is turned off to cause the magnetic vacuum suction cup 2 to lose its suction force, and the magnetic vacuum suction cup 2 is lifted up. See (h) of FIG.

[0029] In step 7, the flexible ropes 17 at both ends of the measuring rod 5 are fixed to the upper end surface of the traction frame 14, so that the flexible ropes 17 function as a traction rope. The second motor 3.3 controls the flexible ropes 17 to slowly place the traction frame 14 containing the optical lens 7 at an appropriate position on the large lens tube 16, and then rotate the screws 15 on both sides of the large lens tube 16 to adjust and fix the traction frame 14 to the middle position on the large lens tube 16. See (i) and (j) in Figure 6.

[0030] In step 8, for the other optical lenses, select the appropriate tray 9 and traction frame 14 based on their concave and convex shapes, and place each optical lens 7 in the traction frame 14 according to the above steps, and then place them sequentially into the large lens tube 16.

[0031] As can be seen from the above, the device and method for mounting a large-diameter optical lens using magnetic composite suction in this embodiment can stably and safely suction a large-diameter optical lens having multiple lens groups, overcomes the problem of the optical lens accidentally falling off due to unstable suction force using a single suction force, and avoids problems such as scratches and dirt that may occur while the suction cup is in contact with the mirror surface. The traction frame designed specifically for a single lens reduces the difficulty of subsequent assembly and adjustment of an optical lens having multiple lens groups, and can achieve stable mounting for both concave and convex optical lenses, effectively solving the problem of optical lenses being very heavy and difficult to assemble due to the deep lens tube.

[0032] The above-mentioned are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any amendments, equivalent replacements, or improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. a magnetic base for mounting a large-diameter optical lens using magnetic composite suction, the magnetic base comprising: a support frame, a motor, a magnetic vacuum suction cup, a magnetic base, a measuring rod, a flexible rope, a gas pump, and a traction frame for mounting an optical lens, the measuring rod and the flexible rope being extendable and retractable by the motor; the gas pump is connected to the support frame by a wire rope at a position corresponding to the center of the measuring rod, and a driving mechanism for driving the gas pump to move up and down is connected to the wire rope; the magnetic vacuum suction cup is connected to the underside of the gas pump by a gas guide pipe; a flexible gasket is installed at the mouth of the magnetic vacuum suction cup; the magnetic base is placed under the magnetic vacuum suction cup in use; the magnetic base comprises a magnetic conductor housing and a cavity in the magnetic conductor housing, a long magnet is installed in the cavity, a long magnet rotation control part is installed in the magnetic conductor housing for controlling the rotation of the long magnet, magnetic isolation parts are installed on the upper and lower sides of the cavity; an exchangeable tray is installed on the magnetic base, and an annular buffer part is installed on the surface of the tray.

2. 2. The large-diameter optical lens mounting device with magnetic composite suction as claimed in claim 1, wherein said support frame is a gantry that can move back and forth.

3. 2. The magnetic composite suction large diameter optical lens mounting device of claim 1, characterized in that the magnetic vacuum suction cup is made of cast iron material, the diameter of which is smaller than the diameter of the optical lens, and the tray is made of flexible material.

4. 2. The magnetic composite suction large-diameter optical lens mounting device according to claim 1, wherein the magnetic vacuum suction cup has a conical hollow passage inside, the large-diameter end of the passage is an adsorption end, and the flexible gasket is provided at the adsorption end.

5. 2. The large-diameter optical lens mounting device using magnetic composite suction as claimed in claim 1, characterized in that a wire rope is further connected between the magnetic vacuum suction cup and the gas pump, and an expandable reinforced plastic bellows is used as the gas guide pipe.

6. 2. The large-diameter optical lens mounting device with magnetic composite suction as claimed in claim 1, characterized in that the measuring rod is provided with a scale for marking the diameter of the optical lens and the traction frame.

7. 2. The large-diameter optical lens mounting device with magnetic composite suction as claimed in claim 1, wherein said magnetic isolation part is a copper plate.

8. the motors include a first motor and a second motor, both of which are fixedly attached to a support frame; the measuring rod includes a left telescopic rod and a right telescopic rod, a gear is connected to an output end of the first motor, the left telescopic rod meshes with the gear on one side, and the right telescopic rod meshes with the gear on the opposite side, and the measuring rods extend and retract in the horizontal direction by being driven by the first motor; 2. The large-diameter optical lens mounting device using magnetic composite suction as claimed in claim 1, characterized in that: fixed pulleys are attached to both ends of the left telescopic rod and the right telescopic rod; a middle part of the flexible rope is attached to a second motor; one end of the flexible rope passes through the left fixed pulley of the right telescopic rod and the right fixed pulley in this order, and hangs down from the right end of the right telescopic rod; and the other end of the flexible rope passes through the right fixed pulley of the left telescopic rod and the left fixed pulley in this order, and hangs down from the left end of the left telescopic rod; and the flexible rope is extended or retracted along the end of the measuring rod by driving the second motor.

9. A method for mounting a large-diameter optical lens by magnetic composite adsorption, comprising: Step 1: Selecting an appropriate tray based on the concave and convex shape of the optical lens, attaching it to the magnetic base, placing the optical lens on the tray so that their centers are overlapped, and separating the tray and the optical lens with an annular buffer part, and rotating the long magnet by the long magnet rotation control part until it is in a vertical position, at this time the magnetic base has no magnetism; Step 2: Adjust the extension and contraction of the measuring rod to bring the flexible ropes at both ends of the measuring rod into close contact with both sides of the optical lens, and the value read by the measuring rod at this time is equal to the diameter of the optical lens, and the magnetic vacuum suction cup is located at the center of the optical lens, and the magnetic vacuum suction cup is controlled to descend to the center surface of the optical lens, and the long magnet is rotated by the long magnet rotation control part until it reaches a horizontal position, and at this time, the magnetic base has ferromagnetic properties, so that the magnetic vacuum suction cup can be stably adsorbed, and the optical lens is stably held by the magnetic vacuum suction cup and the magnetic base; Step 3: turning on the gas pump to create a negative pressure environment inside the magnetic vacuum suction cup, and adjusting the gas extraction amount of the gas pump so that the optical lens is stably adsorbed to the magnetic vacuum suction cup; Step 4: adjust the height of the magnetic vacuum suction cup to lift the optical lens to a preset height, select a towing frame of the appropriate size according to the measurement result of step 2, place the towing frame at a position corresponding to the flexible rope at both ends of the measuring rod, and fasten the flexible rope to the towing frame, so that the adsorbed optical lens is located at the center of the towing frame, and adjust the height of the magnetic vacuum suction cup to place the optical lens at an appropriate position on the base of the towing frame; Step 5: rotating the long magnet by the long magnet rotation control part until the long magnet is in a vertical position, causing the magnetic base to lose its magnetism, and then removing the magnetic base, the tray, and the annular buffer part from the opening at the bottom of the towing frame; Step 6: Turn off the gas pump to let the magnetic vacuum suction cup lose its suction force and lift up the magnetic vacuum suction cup; Step 7: Using a flexible rope, place the towing frame containing the optical lens at a suitable position on the large lens tube, and then rotate the screws on both sides of the large lens tube to adjust and fix the towing frame at the middle position of the large lens tube; and step 8 for placing the optical lens in the large lens tube by repeating steps 1 to 7 in this order for other optical lenses.

Images