Optical assembly method of VR equipment lens and auxiliary assembly

Abstract

The invention belongs to the technical field of optical device assembling, and particularly relates to an optical assembling method of a VR equipment lens and an auxiliary assembly, the auxiliary assembly comprises an ultrasonic cleaning machine, and the ultrasonic cleaning machine comprises a cleaning cylinder and a transducer; the ultrasonic cleaning machine further comprises a fan blade, the fan blade is rotationally connected to the center of the bottom of the cleaning cylinder, the fan blade is connected with a driving piece installed in the ultrasonic cleaning machine, and the fan blade drives the cleaning agent in the cleaning cylinder to rotate. When the lens and other components are fixed, the lens is horizontally placed in the middle of the hanging rod, the cleaning agent flows to firstly wash the edge of the lens, the roughness of the edge of the lens is lower than that of the surface of the lens, the surface of the lens is cleaned when the cleaning agent washes the edge of the lens and passes through the upper portion and the lower portion of the lens, and the washing effect of the cleaning agent on the front face of the surface of the lens is reduced; and in cooperation with the effect that the sponge plate intercepts the cleaning agent and reduces the flow speed, protection measures in the lens cleaning process are increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical device assembly, and specifically relates to an optical assembly method and auxiliary components for a VR device lens. Background Art

[0002] When assembling a VR device lens, pollutants such as dust and impurities will adhere to the surface of the lens, affecting light transmission and imaging quality, and may also form gaps between the lenses, changing the thickness and uniformity of the air gap; impurities entering the glue will affect the performance and bonding strength of the glue; therefore, ultrasonic cleaning components are usually required for the optical assembly of the lens because ultrasonic cleaning has the advantages of high efficiency, thoroughness, and little damage to parts, and can effectively meet the strict requirements for part cleanliness in optical assembly; Although ultrasonic cleaning is a relatively gentle cleaning method, if the lens collides with other hard objects in the cleaning tank, or there are hard particle impurities in the cleaning liquid, it is still possible to produce scratches on the lens surface, affecting the optical performance and imaging quality of the lens; the edges of the lens are usually relatively fragile, and during ultrasonic cleaning, due to high-frequency vibration, slight friction or collision may occur between the lens and the fixing device or other lenses, easily causing chipping at the lens edge and damaging the integrity of the lens; in order to improve the optical performance of the lens, many lens surfaces are coated with multiple layers of optical films; when performing ultrasonic cleaning, if the cleaning parameters are not selected properly, such as too high power, too long cleaning time, or inappropriate cleaning liquid, it may cause damage to the optical film layer, such as film layer peeling, blistering or thinning, thereby reducing the light transmittance of the lens, increasing the reflectivity, and affecting the clarity and color reproducibility of the imaging. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art and solve the above technical problems; the present invention proposes an optical assembly method and auxiliary components for a VR device lens.

[0004] The technical solution adopted by the present invention to solve its technical problems is: the present invention proposes an optical assembly method for a VR device lens, and the assembly method includes the following steps: S1: Before assembly, parts including lenses and lens barrels are cleaned using an ultrasonic cleaning machine to remove dust, grease and other contaminants on the surface, ensuring the cleanliness of the optical surface; the lenses are measured for various dimensional and shape accuracies, including outer diameter, center thickness and radius of curvature, to ensure that they meet the design requirements; S2: Use a precision positioning tool or fixture to position the lens barrel, first install the low-order lens, and then gradually install the high-order lenses, and use washers and fixing rings to adjust the spacing between the lenses to maintain the stability of the air gap and prevent the lenses from contacting each other; S3: Insert a diaphragm to control the light passing aperture, and install a filter element including an infrared cut-off filter to filter light in a specific wavelength band; after completion of the assembly, conduct optical performance tests, including imaging quality, resolution, distortion, and chromatic aberration, to ensure that the lens meets the design standards.

[0005] An optical assembly auxiliary component for a VR device lens, including an ultrasonic cleaning machine, which includes a cleaning tank and a transducer; characterized in that the ultrasonic cleaning machine further includes: A fan blade, which is rotatably connected to the center of the bottom of the cleaning tank, and the fan blade is connected to a driving member installed inside the ultrasonic cleaning machine, and the fan blade drives the cleaning agent in the cleaning tank to rotate; support rods are evenly arranged at the top of the cleaning tank, and hanging grooves are evenly opened on the support rods, and the hanging grooves are arranged in a straight line along the support rods. A hanging tool is arranged in the cleaning tank, and the hanging tool is located at the middle position between the inner wall of the cleaning tank and the fan blade; the inner wall of the cleaning tank is evenly provided with sponge plates, and an adsorbent is stored in the sponge plates; Hanging rods, which are slidably connected to the hanging tool through springs, and every four adjacent hanging rods are in a group and multiple groups are evenly arranged, and the hanging rods in each group slide symmetrically in pairs; a rubber strip is arranged on one side of the hanging rods, and the surfaces of the rubber strips in each group of hanging rods are close to each other; a hook is rotatably connected to the top end of the hanging tool, and the hook is engaged with the hanging groove.

[0006] Preferably, a pressure filter plate is arranged in the cleaning tank, and the sponge plate is installed on the top of the pressure filter plate; a rotating rod is arranged inside the fan blade, and the bottom of the rotating rod passes through the bottom of the cleaning tank and is connected to the driving member. A lift is arranged at the bottom of the cleaning tank to drive the driving member and the rotating rod to lift and lower; pressure filter pipes are evenly arranged in the pressure filter plate, and a partition plate is arranged at the middle position of the pressure filter pipe. The inner parts of the pressure filter pipes on both sides of the partition plate are divided into a flowing water area and a filtering area. Filter cotton is arranged in the pressure filter plate, and the top and bottom of the flowing water area pass through the filter cotton, and the bottom of the filtering area is located inside the filter cotton; A sealing plate is slidably connected in the pressure filter pipe, and a flowing water hole is opened on the sealing plate. The sealing plates are connected to each other through a set of linkage ropes. A rotating shaft is rotatably connected to the middle part of the pressure filter plate, and the rotating shafts are symmetrically distributed at the edge parts on both sides of the pressure filter plate, and the outer surface of the rotating shaft is in contact with the inner wall of the cleaning tank; a rotating ring is sleeved on the rotating shaft, and one end of the linkage rope is connected to the top of one rotating ring, and the other end is sequentially connected to the sealing plates and then fixed to the bottom of the other rotating ring. The inner circle of the rotating ring is wavy, and a clamping block is slidably connected to the rotating shaft through a spring, and the end of the clamping block contacts the wavy inner circle of the rotating ring.

[0007] Preferably, a winding shaft is rotatably connected to one side of the pressure filter pipe in the pressure filter plate. The winding shaft is arranged for one-way rotation, and a rotating belt is stored inside the partition plate, and one end of the rotating belt is connected to the winding shaft; a pressure filter membrane is arranged in the middle part of the rotating belt, and the pressure filter membrane covers the bottom of the filtering area of the pressure filter pipe; a pushing plate is hinged to the outer surface of the winding shaft through a torsion spring, and the pushing plate meshes with the bottom surface of the sealing plate.

[0008] Preferably, the support rod is slidably connected to the top of the cleaning cylinder, a rotating circle is provided at one end of the support rod, a scraper is provided at the bottom of the rotating circle, and the scraper is made of rubber, and the bottom of the scraper contacts the top of the filter press plate.

[0009] Preferably, reinforcing ribs are evenly arranged on the rotating belt, and the reinforcing ribs are located between the sealing plate and the filter press membrane.

[0010] Preferably, an electric push rod is installed in the hook, a slider is slidably connected inside the hanger, a spiral groove is opened on the inner wall of the hanger, the edge of the slider is located in the spiral groove, and the telescopic end of the electric push rod extends into the hanger and is fixedly connected to the top of the slider.

[0011] Preferably, an extrusion bag is provided inside the hanger, the top of the extrusion bag is connected to the bottom of the slider, and the bottom is connected to the inner wall of the hanger, the suction end of the extrusion bag passes through the inner wall of the hanger to contact the outside world, and the discharge end of the extrusion bag is connected to the nozzle arranged in the rubber strip through a pipeline, and the nozzles are arranged vertically and face the two sides of the hanging rod.

[0012] Preferably, an air filter is provided at the end of the nozzle, and the air filter is close to the surface of the hanging rod.

[0013] Preferably, a first guide plate and a second guide plate are respectively provided at a portion of the hanging rod away from the rubber strip, and the first guide plate and the second guide plate are respectively located on both sides of the hanging rod.

[0014] The beneficial effects of the present invention are as follows: 1. The optical assembly method and auxiliary components of a VR device lens described in the present invention, when fixing components such as lenses, the lenses are placed flat in the middle of a hanging rod, and the flow of the cleaning agent first flushes the edge of the lens, the roughness of the edge of the lens is lower than that of the lens surface, and after the cleaning agent flushes the edge of the lens, the lens surface is cleaned when passing above and below the lens, thereby reducing the effect of the cleaning agent flushing the front surface of the lens, reducing the risk of damage to the lens surface, and cooperating with the sponge board to intercept the cleaning agent to reduce the flow rate, thereby increasing the protective measures during the lens cleaning process.

[0015] 2. The optical assembly method and auxiliary components of a VR device lens described in the present invention, when fixing components such as the lens barrel, the end opening of the lens barrel faces the sponge board, so that the lens barrel can follow the flow direction of the cleaning agent. When the cleaning agent quickly flows through the inner and outer surfaces of the lens barrel, a flushing effect is generated, which washes away impurities in the gaps on the surface of the lens barrel, thereby improving cleaning efficiency, reducing assembly time, and improving lens assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a perspective view of the auxiliary component of the present invention; Figure 2It is a top view of the cleaning tank; Figure 3 It is an internal schematic diagram of the auxiliary component of the present invention; Figure 4 It is a right side cross-sectional view when the filter press plate is stationary or descending; Figure 5 It is a left side cross-sectional view when the filter press plate is stationary or descending; Figure 6 It is a left side cross-sectional view when the filter press plate is rising; Figure 7 It is a schematic diagram when the filter press plate rises to contact the scraping blade; Figure 8 It is a three-dimensional view of the rotating shaft; Figure 9 It is a three-dimensional view of the winding shaft; Figure 10 It is a three-dimensional view of the hanger; Figure 11 It is a cross-sectional view of the spray pipe in a three-dimensional state; Figure 12 It is an internal schematic diagram of the connection between the hanger and the hook.

[0018] In the figure: cleaning tank 1, fan blade 11, driving part 12, support rod 13, hanging groove 14, hanger 15, sponge board 16, hanging rod 17, rubber strip 18, hook 19, filter press plate 2, rotating rod 21, elevator 22, filter press pipe 23, partition board 24, flowing water area 25, filtering area 26, filter cotton 27, sealing plate 3, flowing water hole 31, linkage rope 32, rotating shaft 33, rotating ring 34, clamping block 35, winding shaft 36, rotating belt 37, filter press membrane 38, pushing plate 39, rotating circle 4, scraping blade 41, reinforcing rib 42, electric push rod 43, slider 44, spiral groove 45, extrusion bladder 46, spray pipe 5, air filter net 51, first guide plate 52, second guide plate 53. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: In order to effectively solve the above problems, as shown in the accompanying drawings of the specification Figures 1 - 12 shown, an optical assembly auxiliary component for a VR device lens includes an ultrasonic cleaning machine, and the ultrasonic cleaning machine includes a cleaning tank 1 and a transducer; the ultrasonic cleaning machine further includes: The fan blade 11 is rotatably connected to the center of the bottom of the cleaning tank 1, and the fan blade 11 is connected to the driving member 12 installed inside the ultrasonic cleaning machine. The fan blade 11 drives the cleaning agent in the cleaning tank 1 to rotate; the top of the cleaning tank 1 is evenly provided with support rods 13, and the support rods 13 are evenly provided with hanging grooves 14. The hanging grooves 14 are arranged in a straight line along the support rods 13. A hanging tool 15 is arranged in the cleaning tank 1, and the hanging tool 15 is located at the middle position between the inner wall of the cleaning tank 1 and the fan blade 11; the inner wall of the cleaning tank 1 is evenly provided with sponge plates 16, and an adsorbent is stored in the sponge plates 16; The hanging rod 17 is slidably connected to the hanging tool 15 through a spring, and every four adjacent hanging rods 17 are in a group and multiple groups are evenly provided. The hanging rods 17 in each group slide symmetrically in pairs; a rubber strip 18 is arranged on one side of the hanging rod 17, and the surfaces of the rubber strips 18 in each group of hanging rods 17 are close to each other; the top end of the hanging tool 15 is rotatably connected to a hanging hook 19, and the hanging hook 19 is engaged with the hanging groove 14; The driving member 12 is a conventional driving device, such as a motor; the sponge plate 16 is a conventional sponge part for physically filtering the ultrasonic cleaning agent, and a type with high penetrability is selected to filter and purify the cleaning agent. Different types of adhesive substances are selected according to the components of the cleaning agent to adhere to the impurities entering the sponge plate 16. For example, polyacrylamide is a water-soluble polymer with a long-chain molecular structure. It can stretch in water and aggregate suspended particles through adsorption, bridging, etc., collect the impurities in the sponge plate 16, achieve the effect of purifying the cleaning agent, and reduce the impact on the effective components in the cleaning agent; the rubber strip 18 is a rubber conventionally used for fixing components in the lens. While flexibly contacting and fixing the components, the fixing effect is improved through the anti-slip characteristics of the rubber; the number of hanging rods 17 in each group of hanging rods 17 is at least four. The hanging rods 17 in a group are opposite to each other in pairs, such as the four vertices of a quadrilateral, and the two hanging rods 17 are close to each other and move through the spring.

[0021] Specific working process: Before the assembly of the VR device lens, there are many components, such as various lenses, pressing rings, lens barrels, etc. These components will have different ultrasonic cleaning intensities due to their sizes and materials. If all the components are to be cleaned, it will take more cleaning time, resulting in an extension of the lens assembly time; therefore, when cleaning the lens components, all the components are classified according to their sizes. The hanging tool 15 where the large-volume components are located is close to the fan blade 11, and the hanging tool 15 where the small-volume components are located is far from the fan blade 11; During cleaning, the driving member 12 is activated to drive the fan blade 11 to rotate. The fan blade 11 drives the cleaning agent in the cleaning cylinder 1 to rotate. The cleaning agent close to the fan blade 11 is strongly driven by the fan blade 11 and rotates quickly. The cleaning agent far from the fan blade 11 is weakly driven. The sponge plate 16 uniformly arranged on the inner wall of the cleaning cylinder 1 intercepts it, making the cleaning agent close to the inner wall of the cleaning cylinder 1 rotate weakly and slowly. In this way, the purpose of different rotation speeds of the inner layer and the outer layer inside the cleaning cylinder 1 is achieved; The fixture 15 where the large-volume component is located is close to the fan blade 11 and is strongly washed by the cleaning agent, effectively removing the dust in the gap of the lens barrel and improving the cleanliness of the lens barrel; the fixture 15 where the small-volume component is located is far from the fan blade 11 and is weakly washed by the cleaning agent, avoiding the impact of the washing action of the cleaning agent on the lens and protecting the lens; through the above method, multiple components can be cleaned at one time, increasing the scope of application, improving the cleaning efficiency of the lens assembly, shortening the assembly time, and thus improving the assembly efficiency of the lens; the ultrasonic cleaning effect is combined with the flowing cleaning agent, and the impurities are washed away by the cleaning agent as soon as they leave the component, avoiding the situation where the impurities are suspended around the component, resulting in reattachment or secondary contamination, thus improving the cleanliness of the component when taken out, and contributing to the cleanliness of the component during the subsequent drying process; moreover, when the cleaning agent rotates, a centrifugal force is generated, and the impurities in the cleaning agent move along the inner wall of the cleaning cylinder 1. The cleaning agent with impurities passes through the sponge plate 16 before rotating close to the fixture 15, and the sponge plate 16 and the internal adsorbent filter the cleaning agent, improving the cleanliness of the cleaning agent in contact with the small-volume component and avoiding damage to the surface of the small-volume component; The fixture 15 is fixed on the support rod 13 by the engagement of the hook 19 and the hanging groove 14, improving the stability of the fixture 15 when being washed by the rotating cleaning agent, thus improving the stability of the component during cleaning and avoiding the situation of shaking and wear; when installing the component on the fixture 15 before cleaning, a group of hanging rods 17 are separated from each other and placed in the middle position, and the edge of the component contacts the rubber strip 18 and rubs, and the rubber strip 18 scrapes and cleans the contact part of the component, avoiding the situation where the contact part between the rubber strip 18 and the edge of the component is not cleaned; the hanging rod 17 is reset under the influence of the spring, and the hanging rod 17 drives the rubber strip 18 to move and reset to squeeze the component, and the rubber strip 18 flexibly wraps the contact part of the component, achieving the fixation of the component by the rubber strip 18 while reducing the damage caused by extrusion, improving the cleaning effect of the lens assembly, thus improving the cleanliness of the component, and further improving the installation accuracy; When fixing components such as the fixed lens, the lens lies flat in the middle of the hanging rod 17. When the cleaning agent flows, it first flushes the edge of the lens. The roughness of the lens edge is lower than that of the lens surface. After the cleaning agent flushes the lens edge and passes above and below the lens, it cleans the lens surface, reducing the effect of the cleaning agent flushing the front surface of the lens and the risk of damage to the lens surface. Cooperating with the function of the sponge plate 16 to intercept the cleaning agent and reduce the flow rate, it increases the protection measures during the lens cleaning process; when fixing components such as the lens barrel, the end opening of the lens barrel faces the sponge plate 16, enabling the lens barrel to conform to the flow direction of the cleaning agent. When the cleaning agent quickly flows through the inner and outer surfaces of the lens barrel, it produces a flushing effect, washing away the impurities in the gaps on the lens barrel surface, improving the cleaning efficiency, reducing the assembly time, and improving the assembly efficiency of the lens.

[0022] Embodiment Two: On the basis of Embodiment One, a filter press plate 2 is arranged in the cleaning cylinder 1, and the sponge plate 16 is installed on the top of the filter press plate 2; a rotating rod 21 is arranged inside the fan blade 11, and the bottom of the rotating rod 21 passes through the bottom of the cleaning cylinder 1 and is connected to the driving member 12. A lifter 22 is arranged at the bottom of the cleaning cylinder 1 to drive the driving member 12 and the rotating rod 21 to lift and lower; filter press pipes 23 are evenly arranged in the filter press plate 2, and a partition plate 24 is arranged at the middle position of the filter press pipe 23. The inner parts of the filter press pipes 23 on both sides of the partition plate 24 are divided into a flowing water area 25 and a filtering area 26. A filter cotton 27 is arranged in the filter press plate 2. The top and bottom of the flowing water area 25 pass through the filter cotton 27, and the bottom of the filtering area 26 is located inside the filter cotton 27; A sealing plate 3 is slidably connected in the filter press pipe 23. A flowing water hole 31 is opened on the sealing plate 3, and the sealing plates 3 are connected to each other through a set linkage rope 32. A rotating shaft 33 is rotatably connected to the middle part of the filter press plate 2, and the rotating shafts 33 are symmetrically distributed at the edge parts on both sides of the filter press plate 2. The outer surface of the rotating shaft 33 contacts the inner wall of the cleaning cylinder 1; a rotating ring 34 is sleeved on the rotating shaft 33, and one end of the linkage rope 32 is connected to the top of one rotating ring 34, and the other end is sequentially connected to the sealing plate 3 and then fixed to the bottom of the other rotating ring 34. The inner circle of the rotating ring 34 is wavy, and a clamping block 35 is slidably connected to the rotating shaft 33 through a spring. The end of the clamping block 35 contacts the wavy inner circle of the rotating ring 34; A winding shaft 36 is rotatably connected to one side of the filter press pipe 23 in the filter press plate 2. The winding shaft 36 is arranged for one-way rotation, and a rotating belt 37 is stored inside the partition plate 24. One end of the rotating belt 37 is connected to the winding shaft 36; a filter press membrane 38 is arranged in the middle part of the rotating belt 37, and the filter press membrane 38 covers the bottom of the filtering area 26 of the filter press pipe 23; a pushing plate 39 is hinged to the outer surface of the winding shaft 36 through a torsion spring, and the pushing plate 39 meshes with the bottom surface of the sealing plate 3; The support rod 13 is slidably connected to the top of the cleaning cylinder 1. A rotating ring 4 is arranged at one end of the support rod 13. A scraping blade 41 is arranged at the bottom of the rotating ring 4, and the scraping blade 41 is made of rubber. The bottom of the scraping blade 41 contacts the top of the filter press plate 2; Reinforcing ribs 42 are evenly arranged on the rotating belt 37, and the reinforcing ribs 42 are located between the sealing plate 3 and the filter pressing membrane 38; The lift 22 is a device commonly used for lifting. The lift 22 drives the rotating rod 21 to lift, and the driving member 12 drives the rotating rod 21 to rotate. The connecting parts of the various parts in the cleaning cylinder 1 are sealed with conventional sealing parts such as sealing rubber sleeves to avoid contact with the cleaning agent; the filter pressing plates 2 above and below the rotating shaft 33 are sealed with the inner wall of the cleaning cylinder 1; when the water flow hole 31 in the sealing plate 3 is located inside the filtering area 26 of the filter pressing pipe 23, the sealing plate 3 is in the initial position; when the water flow hole 31 in the sealing plate 3 is located inside the water flow area 25 of the filter pressing pipe 23, the sealing plate 3 is in the end position; the edge of the rotating belt 37 is located inside the filter pressing pipe 23, so that during the filter pressing process, the cleaning agent will not flow away through the contact part between the rotating belt 37 and the inner wall of the filter pressing pipe 23, affecting the filter pressing effect.

[0023] Specific working process: After each cleaning operation is completed, the worker removes the hanging tool 15 and prepares to replace the next batch of hanging tools 15 to be cleaned, and the ultrasonic cleaning machine enters the self-cleaning mode; the lift 22 drives the driving member 12 and the rotating rod 21 to rise, the rotating rod 21 drives the filter pressing plate 2 and the fan blade 11 to rise, and the edge part of the filter pressing plate 2 scrapes off the impurities attached to the inner wall of the cleaning cylinder 1. The scraped impurities are mixed with the cleaning agent. Affected by the frictional force, the rotating shaft 33 rolls up along the inner wall of the cleaning cylinder 1. The rotating shaft 33 is fixed by the extrusion of the wave-shaped inner ring of the rotating ring 34 through the clamping block 35, so that the rotating shaft 33 on one side of the filter pressing plate 2 drives the rotating ring 34 on one side to rotate and wind up the linkage rope 32, and the rotating ring 34 on the other side unwinds the linkage rope 32. The sealing plate 3 is dragged by the linkage rope 32 and moves from the initial position to the end position, so that the water flow hole 31 is located in the water flow area 25 of the filter pressing pipe 23, so that when the filter pressing plate 2 rises, the cleaning agent can smoothly pass through the water flow area 25 of the filter pressing pipe 23 and pass through the filter pressing plate 2; since the distance that the sealing plate 3 moves from the filtering area 26 to the water flow area 25 is short, when the rotating shaft 33 drags the linkage rope 32 through the rotating ring 34, the sealing plate 3 can move quickly to avoid affecting the flow of the cleaning agent; after the sealing plate 3 moves to the end position, the sealing plate 3 no longer moves, and the rotating ring 34 is fixed and does not rotate after being affected. The clamping block 35 is squeezed into the rotating shaft 33 by the wave-shaped inner ring of the rotating ring 34, achieving the purpose that the rotating ring 34 is fixed and does not rotate while the rotating shaft 33 continues to rotate, avoiding excessive friction between the rotating shaft 33 and the inner wall of the cleaning cylinder 1 and generating debris and other impacts; After the filter pressing plate 2 rises to the limit position, it is convenient for workers to replace consumables such as the sponge plate 16 inside, improving the convenience of use. The elevator 22 drives the filter pressing plate 2 to descend through the rotating rod 21. The filter pressing plate 2 drives the rotating shaft 33 to descend. One side of the rotating shaft 33 drives the rotating ring 34 to unwind the linkage rope 32, and the other side of the rotating shaft 33 drives the rotating ring 34 to wind up the linkage rope 32, so that the sealing plate 3 is reversely pulled and reset by the linkage rope 32 when descending, and the water flow holes 31 enter the filtration area 26 of the filter pipe 23; as the filter pressing plate 2 presses down, the cleaning agent is filtered and purified by the filter cotton 27, reducing the impurities inside the cleaning agent. The filtered cleaning agent passes through the filtration area 26 of the filter pipe 23 and the water flow holes 31 to penetrate the filter plate until the filter pressing plate 2 resets to the bottom of the cleaning cylinder 1. After each cleaning, the cleaning agent is pressure-filtered by using the time interval for replacing the hanging tool 15, combined with the filtration of the cleaning agent during the cleaning process, improving the cleanliness of the cleaning agent, thereby improving the cleaning effect of the lens assembly, and then facilitating the assembly of the lens assembly; and, through the above method, the purpose of continuously and efficiently cleaning the lens assembly is achieved, avoiding excessive impurities in the cleaning agent from adhering to or damaging the assembly; When the sealing plate 3 moves from the initial position to the end position, the sealing plate 3 passes through the winding shaft 36. The depression at the bottom of the sealing plate 3 meshes with the pushing plate 39. At this time, the pushing plate 39 cannot swing due to the setting of the one-way rotating hinge. The pushing plate 39 meshes with the bottom of the sealing plate 3 and drives it to rotate. The winding shaft 36 winds up the rotating belt 37. The rotating belt 37 drives the used filter membrane 38 to wind up and brings out the new filter membrane 38, covering the bottom of the filtration area 26 of the filter pipe 23; when the sealing plate 3 moves from the end position to the initial position, the sealing plate 3 passes through the winding shaft 36 and contacts the pushing plate 39. At this time, the pushing plate 39 during the reset process can swing over the bottom of the sealing plate 3. The winding shaft 36 is fixed and does not rotate. The rotating belt 37 drives the filter membrane 38 to cover the bottom of the filtration area 26 to achieve the filtration effect; at this time, the filter pressing plate 2 descends, and the cleaning agent is filtered and purified multiple times by the filter cotton 27 and the filter membrane 38, further improving the cleanliness of the cleaning agent, improving the cleaning efficiency, reducing the assembly time, and improving the assembly efficiency of the lens; and, during cleaning, the water flow holes 31 are located in the filtration area 26, and some impurities will settle on the filter membrane 38 in the filter pipe 23. During the pressure filtration process, the impurities are collected as the filter membrane 38 is wound up, avoiding contamination inside the filtration area 26 of the filter pipe 23 and affecting the pressure filtration effect; Before the blade 11 rises to the limit position, the blade 11 enters the inner ring of the rotating ring 4, and the blade 11 engages with the rotating ring 4. At this time, the blade 11 drives the scraping blade 41 to rotate through the rotating ring 4, so that the blade 11 drives the scraping blade 41 to rotate and scrape the top of the filter press plate 2 and the sealing plate 3, while squeezing the support rod 13 to rise; the scraping blade 41 scrapes some of the impurities deposited on the top of the filter press plate 2, mixes with the cleaning agent and passes through the flowing water area 25 of the filter pipe 23 together, improving the cleanliness of the top of the filter press plate 2, avoiding the situation that too many impurities remain on the inner wall of the cleaning cylinder 1 and the top of the filter press plate 2, resulting in the reduction of the effect of the filter cleaning agent, thereby improving the cleanliness of the cleaning cylinder 1, and further improving the cleaning effect of the lens assembly; moreover, the filter press plate 2 rises to clean the inner wall of the cleaning cylinder 1, and is mixed with the impurities cleaned by the scraping blade 41 in the cleaning agent and enters below the filter press plate 2, accelerating the flow of the impurities and avoiding the situation that the impurities get stuck in the connection part between the filter press plate 2 and the cleaning cylinder 1, resulting in the residue of the impurities; Further, by providing the reinforcing rib 42, when the cleaning agent contacts the filter membrane 38 for filtration below the filter pipe 23, the reinforcing rib 42 is located above the filter membrane 38 to provide support for the filter membrane 38, avoiding the situation that the filter membrane 38 is broken due to the high filter pressure, thereby improving the stability of the filter membrane 38; and, when the filter membrane 38 is wound up, impurities settle on the top of the filter membrane 38. During the process of the impurities moving along the inclined guide of the filter membrane 38, the impurities are intercepted by the reinforcing rib 42, avoiding the situation that the impurities continue to move, resulting in the settled impurities not being collected with the winding of the filter membrane 38; in addition, during the process of winding the filter membrane 38, the reinforcing rib 42 is provided between the inner layer and the outer layer of the filter membrane 38 to prevent contact between the inner layer and the outer layer of the filter membrane 38, avoiding the situation that the hard impurities between them pierce the filter membrane 38 and cause the outflow of the impurities, thereby improving the practicability.

[0024] Embodiment Three: On the basis of Embodiment Two, an electric push rod 43 is installed in the hook 19, a slider 44 is slidably connected inside the hanger 15, a spiral groove 45 is formed on the inner wall of the hanger 15, and the edge of the slider 44 is located in the spiral groove 45. The telescopic end of the electric push rod 43 extends into the hanger 15 and is fixedly connected to the top of the slider 44; the electric push rod 43 is a conventional electric telescopic device; the two ends of the hanger 15 are the head end and the tail end respectively; An extrusion bladder 46 is arranged inside the hanger 15. The top of the extrusion bladder 46 is connected to the bottom of the slider 44, and the bottom is connected to the inner wall of the hanger 15. The suction end of the extrusion bladder 46 passes through the inner wall of the hanger 15 to contact the outside, and the discharge end of the extrusion bladder 46 is connected to the spray pipe 5 arranged inside the rubber strip 18 through a pipeline. The spray pipes 5 are arranged vertically and distributed on both sides of the hanging rod 17.

[0025] Specific workflow: During the cleaning process of the lens assembly, the head end of the fixture 15 is located in front of the tail end and first contacts the cleaning agent. The components located at the head end of the fixture 15 are flushed more strongly than those at the tail end of the fixture 15. Subsequently, the hook 19 engages and fixes with the hanging groove 14, and the fixture 15 and the hook 19 are in a rotating state. The electric push rod 43 is activated to drive the slider 44 to descend within the fixture 15. Both the electric push rod 43 and the slider 44 are in a fixed and non-rotating state. The slider 44 presses against the spiral groove 45 to drive the fixture 15 to rotate slowly, causing the head end and the tail end of the fixture 15 to swap positions, so that the components at the tail end of the fixture 15 can be flushed by the cleaning agent. For example, there are grooves in the lens barrel facing the tail end of the fixture 15. The cleaning agent flowing normally from the head end to the tail end of the fixture 15 cannot flush these grooves, resulting in residue of impurities. After swapping the head and tail positions, the grooves in the lens barrel facing the tail end of the fixture 15 are also directly facing the flow direction of the cleaning agent, which helps to improve the cleaning effect, reduce the residue of impurities, and thus improve the assembly accuracy. When the slider 44 descends, the slider 44 presses on the extrusion bladder 46. The air or stored cleaning gas inside the extrusion bladder 46 enters the spray pipe 5 and is ejected from both sides of the rubber strip 18 through the spray pipe 5, forming countless tiny bubbles in the cleaning liquid. These bubbles generate a powerful impact force when they burst, namely the cavitation effect, to achieve the purpose of cleaning the lens assembly and improve the cleaning effect. Under strong cavitation, the cleaning effect is better, but if the cavitation is too strong, it will damage the lens. If the cavitation effect is weak, the cleaning effect may be poor, and the stubborn stains on the lens barrel cannot be thoroughly cleaned. Therefore, the worker can automatically adjust the telescopic speed of the electric push rod 43 according to the components on the fixture 15. For example, the volume of the extrusion bladder 46 inside the fixture 15 where the lens is located is small, and the volume of the extrusion bladder 46 inside the fixture 15 where the lens barrel is located is large, so as to achieve the purpose of adapting to different strengths of the cavitation effect according to the type of the component to be cleaned, improve the cleaning efficiency, and thus improve the assembly efficiency of the lens. Moreover, since the spray pipe 5 is located inside the rubber strip 18 and is evenly distributed vertically from top to bottom, a wavy surface is formed inside the rubber strip 18. When the rubber strip 18 fixes the components, the wavy surface formed by the spray pipes 5 indirectly contacts the components through the rubber strip 18, clamping the edges of the components in the gaps between adjacent spray pipes 5 to reinforce the installation of the components and improve the stability during the cleaning process of the components. Moreover, at greater depths, due to the greater pressure, the generation and growth of bubbles are somewhat inhibited, and the number of bubbles is relatively small. However, the energy when the bubbles burst is greater. At shallower depths, the pressure is smaller, bubbles are easily generated and the number is larger, but the energy of a single bubble bursting is relatively small. For lens cleaning, too many or too few bubbles may not be conducive to cleaning. Too many bubbles may affect the effective transmission of the cavitation effect, while too few bubbles cannot provide sufficient impact force to remove impurities. Therefore, the worker determines the depth of the hanger 15 in the cleaning agent according to the actual cleaning effect and the component type. For example, the lens is located in the shallow layer of the cleaning agent to clean surface impurities, and the lens barrel is located in the deep layer of the cleaning agent to clean stubborn stains, so as to be able to adopt different cleaning intensities for different component types and clean them in the same batch, thereby improving the convenience of use.

[0026] Embodiment Four: On the basis of Embodiment Three, a filter screen 51 is provided at the end of the nozzle 5, and the filter screen 51 is close to the surface of the hanging rod 17; On the parts of the hanging rod 17 far from the rubber strip 18, a first deflector 52 and a second deflector 53 are respectively provided, and the first deflector 52 and the second deflector 53 are respectively located on both sides of the hanging rod 17.

[0027] Specific working process: By setting the filter screen 51, on the one hand, the gas ejected from the nozzle 5 is filtered to avoid the components being contaminated by suspended impurities in the gas. On the other hand, after the gas is ejected through the filter screen 51, bubbles of uniform size are formed, avoiding the cleaning effect of the cavitation effect on the lens assembly being affected by non-uniform bubble sizes, thereby improving the practicality; When the front end of the hanger 15 is in front of the tail end, the second deflector 53 is in front of the first deflector 52. The water flow contacts the second deflector 53 and generates a guiding effect, causing the cleaning agent to flow towards the edge part of the component. While improving the flushing effect, the bubbles are carried close to the lens assembly, further improving the cleaning effect. When the tail end of the hanger 15 is in front of the front end, the first deflector 52 is in front of the second deflector 53. The water flow contacts the first deflector 52 and generates a guiding effect, also causing the cleaning agent to flow towards the edge part of the component, ensuring that the change of the position of the hanger 15 does not affect the flow effect of the cleaning agent around the lens assembly, helping to improve the cleaning effect and reduce the residue of impurities, thereby improving the assembly accuracy.

[0028] Embodiment Five: An optical assembly method for a VR device lens, the assembly method comprising the following steps: S1: Before assembly, parts including lenses and lens barrels are cleaned using an ultrasonic cleaning machine to remove dust, grease and other contaminants on the surface and ensure the cleanliness of the optical surface; the lenses are measured for various dimensional and shape accuracies, including outer diameter, central thickness and radius of curvature, to ensure they meet the design requirements; S2: Use a precision positioning tool or fixture to position the lens barrel. First, install the low-order lenses, and then gradually install the high-order lenses. Use washers and retaining rings to adjust the spacing between the lenses, maintain the stability of the air gap, and prevent the lenses from contacting each other; S3: Insert a diaphragm to control the light passing aperture, and install filter elements including an infrared cut-off filter to filter light in a specific wavelength band. After completion of the assembly, conduct optical performance tests, including imaging quality, resolution, distortion, and chromatic aberration, to ensure that the lens meets the design standards.

[0029] The above has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An optical assembly method for a lens of a VR device, characterized in that: The assembly method includes the following steps: S1: Before assembly, parts including lenses and lens barrels are cleaned using an ultrasonic cleaner to remove dust, grease, and other contaminants on the surface, ensuring the cleanliness of the optical surface; the lenses are measured for various dimensional and shape accuracies, including outer diameter, central thickness, and radius of curvature, to ensure they meet the design requirements; S2: Use a precision positioning tool or fixture to position the lens barrel. First, install the low-order lenses, and then gradually install the high-order lenses. Use washers and retaining rings to adjust the spacing between the lenses, maintaining the stability of the air gap and preventing the lenses from contacting each other; S3: Insert a diaphragm to control the light passing aperture, and install filter elements including an infrared cut-off filter to filter light in specific wavelength bands; after completion of assembly, conduct optical performance tests, including imaging quality, resolution, distortion, and chromatic aberration, to ensure that the lens meets the design standards.

2. An optical assembly auxiliary component for a VR device lens, comprising an ultrasonic cleaning machine, the ultrasonic cleaning machine including a cleaning tank (1) and a transducer; characterized in that, The ultrasonic cleaner further includes: A fan blade (11), the fan blade (11) is rotatably connected to the center of the bottom of the cleaning tank (1), and the fan blade (11) is connected to a driving member (12) installed inside the ultrasonic cleaner. The fan blade (11) drives the cleaning agent in the cleaning tank (1) to rotate; the top of the cleaning tank (1) is evenly provided with support rods (13), and hanging grooves (14) are evenly opened on the support rods (13). The hanging grooves (14) are arranged linearly along the support rods (13). A hanging tool (15) is arranged inside the cleaning tank (1), and the hanging tool (15) is located at the middle position between the inner wall of the cleaning tank (1) and the fan blade (11); the inner wall of the cleaning tank (1) is evenly provided with sponge plates (16), and an adsorbent is stored in the sponge plates (16); Hanging rods (17), the hanging rods (17) are slidably connected to the hanging tool (15) through springs, and every four adjacent hanging rods (17) form a group and multiple groups are evenly provided. The hanging rods (17) in each group slide symmetrically in pairs; a rubber strip (18) is arranged on one side of the hanging rods (17), and the surfaces of the rubber strips (18) in each group of hanging rods (17) are close to each other; the top end of the hanging tool (15) is rotatably connected to a hook (19), and the hook (19) is engaged with the hanging groove (14).

3. An optical assembly auxiliary component for a VR device lens according to claim 2, characterized in that: A pressure filter plate (2) is arranged inside the cleaning tank (1), and the sponge plate (16) is installed on the top of the pressure filter plate (2); a rotating rod (21) is arranged inside the fan blade (11), and the bottom of the rotating rod (21) passes through the bottom of the cleaning tank (1) and is connected to the driving member (12). A lifter (22) is arranged at the bottom of the cleaning tank (1) to drive the driving member (12) and the rotating rod (21) to lift and lower; pressure filter tubes (23) are evenly arranged inside the pressure filter plate (2), and a partition plate (24) is arranged at the middle position of the pressure filter tubes (23). The inner parts of the pressure filter tubes (23) on both sides of the partition plate (24) are divided into a flowing water area (25) and a filtering area (26). Filter cotton (27) is arranged inside the pressure filter plate (2). The top and bottom of the flowing water area (25) pass through the filter cotton (27), and the bottom of the filtering area (26) is located inside the filter cotton (27); A sealing plate (3) is slidably connected inside the pressure filtration tube (23). Water flow holes (31) are formed in the sealing plate (3). The sealing plates (3) are connected to each other through a set linkage rope (32). A rotating shaft (33) is rotatably connected to the middle part of the pressure filtration plate (2). The rotating shafts (33) are symmetrically distributed on both sides of the edge of the pressure filtration plate (2). The outer surface of the rotating shaft (33) contacts the inner wall of the cleaning cylinder (1); A rotating ring (34) is sleeved on the rotating shaft (33). One end of the linkage rope (32) is connected to the top of one rotating ring (34), and the other end is sequentially connected to the sealing plate (3) and then fixed to the bottom of the other rotating ring (34). The inner circle of the rotating ring (34) is wavy. A clamping block (35) is slidably connected to the inside of the rotating shaft (33) through a spring. The end of the clamping block (35) contacts the wavy inner circle of the rotating ring (34).

4. An optical assembly auxiliary component for a VR device lens according to claim 3, characterized in that: A winding shaft (36) is rotatably connected to one side of the pressure filtration tube (23) inside the pressure filtration plate (2). The winding shaft (36) is arranged for one-way rotation. A rotating belt (37) is stored inside the partition plate (24). One end of the rotating belt (37) is connected to the winding shaft (36); A pressure filtration membrane (38) is arranged in the middle part of the rotating belt (37). The pressure filtration membrane (38) covers the bottom of the filtration area (26) of the pressure filtration tube (23); A pushing plate (39) is hinged to the outer surface of the winding shaft (36) through a torsion spring. The pushing plate (39) meshes with the bottom surface of the sealing plate (3).

5. An optical assembly auxiliary component for a VR device lens according to claim 4, characterized in that: The support rod (13) is slidably connected to the top of the cleaning cylinder (1). A rotating ring (4) is arranged at one end of the support rod (13). A scraping blade (41) is arranged at the bottom of the rotating ring (4). The scraping blade (41) is made of rubber. The bottom of the scraping blade (41) contacts the top of the pressure filtration plate (2).

6. An optical assembly auxiliary component for a VR device lens according to claim 5, characterized in that: Reinforcing ribs (42) are uniformly arranged on the rotating belt (37). The reinforcing ribs (42) are located between the sealing plate (3) and the pressure filtration membrane (38).

7. An optical assembly auxiliary component for a VR device lens according to claim 2, characterized in that: An electric push rod (43) is installed inside the hook (19). A slider (44) is slidably connected inside the hanging tool (15). A spiral groove (45) is formed on the inner wall of the hanging tool (15). The edge of the slider (44) is located inside the spiral groove (45). The telescopic end of the electric push rod (43) extends into the hanging tool (15) and is fixedly connected to the top of the slider (44).

8. An optical assembly auxiliary component for a VR device lens according to claim 7, characterized in that: An extrusion bladder (46) is arranged inside the hanging tool (15). The top of the extrusion bladder (46) is connected to the bottom of the slider (44), and the bottom is connected to the inner wall of the hanging tool (15). The suction end of the extrusion bladder (46) passes through the inner wall of the hanging tool (15) and contacts the outside. The discharge end of the extrusion bladder (46) is connected to a spray pipe (5) arranged inside the rubber strip (18) through a pipeline. The spray pipes (5) are arranged vertically. The spray pipes (5) face both sides of the hanging rod (17).

9. An optical assembly auxiliary component for a VR device lens according to claim 8, characterized in that: A filter gas net (51) is arranged at the end of the spray pipe (5). The filter gas net (51) is close to the surface of the hanging rod (17).

10. An optical assembly auxiliary component for a VR device lens according to claim 9, characterized in that: A first guide plate (52) and a second guide plate (53) are respectively arranged at the part of the hanging rod (17) far from the rubber strip (18). The first guide plate (52) and the second guide plate (53) are respectively located on both sides of the hanging rod (17).

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