Defect detection equipment for precise lens

Abstract

The invention discloses defect detection equipment for precise lenses, and belongs to the technical field of lens detection devices.The defect detection equipment comprises a rotary shooting mechanism, the rotary shooting mechanism comprises a first U-shaped plate fixed to a frame, a first motor is mounted on the first U-shaped plate, and a second motor is mounted on the second U-shaped plate; an output shaft of the first motor penetrates through the first lifting plate and the shell and extends to the telescopic cylinder, concave grooves are formed in the two sides of the bottom end of the telescopic cylinder, movable rods are connected to the two sides of the bottom end of the telescopic cylinder in a limiting mode, one end of each movable rod is connected with a camera through a bent rod, and the other opposite end of each movable rod extends to the pressing plate. The movable rod is connected with the top of the inner wall of the telescopic cylinder through a first spring, and a second lifting plate is fixedly installed on the movable rod. The technical problems that existing detection equipment is generally designed to be a fixing mechanism, manual processing is needed when multi-directional camera shooting work is achieved, a light source also needs adaptive matching adjustment, operation is complex, and the working efficiency is reduced can be solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lens detection devices, and particularly relates to a defect detection equipment for precision lenses. BACKGROUND

[0002] The precision lens is a key component for improving optical performance in AI glasses and other intelligent devices, and through aspheric design and precision molding technology, high-precision image capture and real-time data processing are realized. The core functions are as follows:

[0003] ‌Aspheric design: effectively control the speed of light and focal length by optimizing the optical shape of the lens, improve the clarity of the image.‌Precision molding technology: combine eye rotation trajectory data to optimize the point position of different areas of the lens, reduce edge distortion, and ensure clear imaging in the entire field of view.

[0004] Lens detection mainly includes the following contents: optical performance detection, including diopter, astigmatism, light transmittance and reflectance parameter measurement, to ensure that the optical performance of the lens meets the standard.

[0005] Physical performance detection, covering surface quality, checking scratches, bubbles and other defects, impact resistance, wear resistance and light transmittance, etc., to evaluate the durability and safety of the lens.

[0006] Geometric parameter detection, measuring lens center thickness, edge thickness, optical center deviation and other size data to ensure that the geometric parameters of the lens meet the specifications.

[0007] During the processing of the lens, further camera processing is required for external influences, so as to detect the corresponding defects. However, for lenses of different sizes, corresponding focusing processing is required to obtain the best clear image information. In addition, the existing equipment is usually designed with fixed mechanisms, which requires manual processing when implementing multi-directional camera work. The light source also needs to be adaptively adjusted, which is complicated to operate, and the focusing processing also prolongs the working time, reduces the working efficiency, and affects the use effect of the detection equipment. SUMMARY

[0008] The purpose of the present application is to provide a defect detection equipment for precision lenses, which solves the technical problem that the existing detection equipment is usually designed with fixed mechanisms, which requires manual processing when implementing multi-directional camera work, and the light source also needs to be adaptively adjusted, which is complicated to operate, and the focusing processing also prolongs the working time, reduces the working efficiency.

[0009] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0010] A defect detection equipment for precision lenses, comprising:

[0011] The rotating shooting mechanism comprises a first U-shaped plate fixed on a frame, a first motor is installed on the first U-shaped plate, an output shaft of the first motor penetrates through a first lifting plate and a shell and extends to a telescopic cylinder, recessed grooves are formed on both sides of the bottom end of the telescopic cylinder and movable rods are connected in position, one end of the movable rods is connected with a camera through a bent rod, and the other end extends to a pressing plate;

[0012] The movable rods and the inner wall top of the telescopic cylinder are connected through a first spring, a second lifting plate is fixedly installed on the movable rods, a first bevel gear is fixedly installed on the output shaft of the first motor and is placed in the shell, second bevel gears are engaged in transmission on both ends of the outer wall of the first bevel gear, a bidirectional cam is connected to one end of the central shaft of the second bevel gear, and the upper panel and the lower panel are correspondingly connected through movable abutment on both ends of the bidirectional cam.

[0013] Further, the extended end of the top of the upper panel abuts on the first lifting plate, the extended end of the bottom of the lower panel abuts on the second lifting plate, and the second spring and the third spring are correspondingly connected between the upper panel and the lower panel and the inner wall of the shell, and a guide groove is formed on the shell and connected with the extended end of the upper panel and the lower panel.

[0014] Further, the frame and the shell are connected through a fixed rod, the top of the first lifting plate and the frame are connected through a fourth spring, an activity port is formed on the first lifting plate and connected with the fixed rod, the outer wall edge of the output shaft of the first motor is fixedly connected with the first lifting plate through a bearing, and the bottom of the first lifting plate is provided with annularly distributed irradiation lamps.

[0015] Further, the both ends of the inner wall of the shell and the bidirectional cam are connected through support rods, and the outer wall edge of the support rods is provided with an annular groove connected with the bidirectional cam.

[0016] Further, it further comprises a polishing dust purification mechanism, the polishing dust purification mechanism comprises a second U-shaped plate fixed on the frame, a cylinder is installed on the second U-shaped plate, one end of the piston rod of the cylinder extends to a pushing block, a second motor is fixedly installed on the pushing block, an output shaft of the second motor extends to a grinding wheel, taper air suction pipes are arranged on both sides of the grinding wheel, and one end of the taper air suction pipes is connected with a water tank in a dust removal box through a pump body.

[0017] Further, the water tank is symmetrically arranged relative to the center of the dust removal box, a third motor is fixedly installed on the outer wall of the dust removal box, an output shaft of the third motor penetrates the dust removal box and extends to the center gear, the outer wall of the center gear is respectively meshed with reversely moving first and second gear plates, one end of the first gear plate is fixed on the partition plate at the bottom of the water tank, and the extended end of the second gear plate penetrates the partition plate and extends to the filter screen below the telescopic pipe.

[0018] Further, the filter screen is arranged on the side wall of the water tank in an inclined manner, a sliding groove connected with the second gear plate is formed in the partition plate, a sealing ring is fixedly installed on the sliding groove in a viscous manner, fifth springs are connected between the bottom of the inner wall of the dust removal box and the bottom of the partition plate on both sides, and an inclined pipe is connected between the water tank and the collecting box at the center of the dust removal box.

[0019] Further, the top of the water tank is connected with the exhaust fan through a U-shaped pipe, and the limit grooves are connected to both sides of the filter screen along the height direction of the water tank, and the sealing cavity is formed between the partition plate and the side wall of the water tank.

[0020] Further, the conveying line is installed on the frame and extends along the preset direction to carry and convey the lenses.

[0021] As described above, by adopting the above technical scheme, the beneficial effects of the present application are:

[0022] (1) In the present application, the conveying line can not only be used to carry and convey the lenses, but also can provide corresponding processing space for the external image and polishing work of the lenses, which is beneficial to improve the stability of the device.

[0023] (2) In the application, when the image information of the lens is photographed, the first motor can drive the camera on the bending rod to rotate and shoot under the mechanical transmission, at this time the output shaft of the first motor can drive the first bevel gear to rotate, under the gear meshing transmission, the force can be transmitted to the second bevel gear, and the rotation of the two-way cam at both ends is driven, cooperating with the upper panel on the second spring and the lower panel on the third spring, the upper panel and the lower panel can move up and down, the upper panel moves upward to drive the first lifting plate to move upward, the lower panel moves downward to drive the camera on the second lifting plate to move downward, and the first lifting plate is movably connected to the output shaft of the first motor through the bearing, which can ensure the free upward and downward movement of the first lifting plate, and the second lifting plate is fixedly connected to the movable rod, so that the camera on the bending rod can move up and down during rotation, thereby automatically completing the focusing process by controlling the distance between the camera and the lens, which has high automation, clear and comprehensive image information, and the camera and the irradiation lamp move synchronously, which means that the camera moves downward to obtain clearer image information, the irradiation lamp moves upward, the light intensity does not need to be too obvious to complete the shooting work, the camera moves upward, the distance between the camera and the lens increases, the image transmission distance is long, and the light intensity is weak, so the irradiation lamp moves downward to increase the light intensity, thereby making up for the light energy loss in transmission, and the camera is always in the best light shooting environment through automatic adjustment, effectively improving the image acquisition quality and stably detecting the defects of the lens.

[0024] (3) In the application, when the appearance of the lens has corresponding burrs, burrs and other conditions, the polishing mechanism is used for polishing, the dust generated in the polishing process is sucked into the dust removal box through the conical suction pipe for filtration and purification, which can effectively improve the processing environment and ensure the stability of the processing table. The particles precipitated on the filter screen, the setting of the telescopic pipe on the filter screen can not only exhaust the smoke into the water body, but also make the telescopic pipe move up and down freely, which can automatically return under the self-weight action of the telescopic pipe, so that the exhaust port on the telescopic pipe is always in the water body. When the third motor starts, it can drive the rotation of the central gear, under the gear meshing transmission, the partition and the filter screen move vertically and reversely, so that the filter screen rises, the partition drives the water level to drop, thereby prolonging the draining time of the particles, and then the particles are discharged into the collection box under the action of inclination. During the descending process of the filter screen, the partition drives the water level to rise, thereby increasing the contact area and time of the liquid with the smoke by increasing the liquid height, so that the smoke can be fully purified in the water body, and the purification quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, below the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and other accompanying drawings can be obtained by those of ordinary skill in the art without any creative effort based on these accompanying drawings.

[0026] Figure 1 is a structural schematic diagram of a defect detection device for a precision lens according to the present application Figure 1 ;

[0027] Figure 2 is a structural schematic diagram of a defect detection device for a precision lens according to the present application Figure 2 ;

[0028] Figure 3 is a left view of a defect detection device for a precision lens according to the present application

[0029] Figure 4 is an enlarged view of A of the present application Figure 1 ;

[0030] Figure 5 is a connection schematic diagram of an extension cylinder and a movable rod according to the present application

[0031] Figure 6 is an internal schematic diagram of a shell according to the present application

[0032] Figure 7 is a meshing transmission schematic diagram of a first bevel gear and a second bevel gear according to the present application

[0033] Figure 8 is an internal schematic diagram of a dust removal box according to the present application

[0034] The accompanying drawings are as follows: 1, a rotating shooting mechanism; 2, a first U-shaped plate; 3, a first motor; 4, a first lifting plate; 5, a shell; 6, an extension cylinder; 7, a movable rod; 8, a camera; 9, a pressing plate; 10, a first spring; 11, a second lifting plate; 12, a first bevel gear; 13, a second bevel gear; 14, a bidirectional cam; 15, an upper panel; 16, a lower panel; 17, a second spring; 18, a third spring; 19, a fixed rod; 20, a fourth spring; 21, a bearing; 22, an irradiation lamp; 23, a polishing dust purification mechanism; 24, a second U-shaped plate; 25, an air cylinder; 26, a pushing block; 27, a second motor; 28, a grinding wheel; 29, a conical air suction pipe; 30, a dust removal box; 31, a water tank; 32, a third motor; 33, a central rotating gear; 34, a first gear plate; 35, a second gear plate; 36, a partition plate; 37, an extension pipe; 38, a filter screen; 39, a fifth spring; 40, a collection box; 41, an exhaust fan; 42, a conveying line. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0036] Reference is made to the drawings in the specification Figure 1 - the drawings Figure 8 As shown in the drawings, a defect detection device for precision lenses comprises a rotating shooting mechanism 1, the rotating shooting mechanism 1 comprising a first U-shaped plate 2 fixed on a frame, a first motor 3 mounted on the first U-shaped plate 2, an output shaft of the first motor 3 penetrating through a first lifting plate 4 and a shell 5 and extending to a telescopic cylinder 6, recessed grooves being formed on both sides of the bottom end of the telescopic cylinder 6 and limitingly connected with movable rods 7, a camera 8 being connected with one end of the movable rods 7 through a bent rod, and the other end extending to a pressing plate 9.

[0037] The movable rods 7 and the inner wall top of the telescopic cylinder 6 are connected through a first spring 10, and a second lifting plate 11 is fixedly mounted on the movable rods 7, a first bevel gear 12 being fixedly mounted on the output shaft of the first motor 3 and placed inside the shell 5, second bevel gears 13 being meshingly driven on both ends of the outer wall of the first bevel gear 12, a bidirectional cam 14 being connected with one end of the central shaft of the second bevel gears 13, and an upper panel 15 and a lower panel 16 being correspondingly connected with both ends of the bidirectional cam 14 through an active abutting manner.

[0038] Specifically, the recessed grooves connected with the movable rods 7 cooperate with the first spring 10, which not only can drive the movable rods 7 to rotate freely through the telescopic cylinder 6, but also can ensure the normal up-and-down movement of the movable rods 7, and meanwhile, the movable rods 7 can press and fix the lenses through the active abutting manner of the pressing plate 9 during the up-and-down movement, so as to ensure that the lenses are in the corresponding processing position points.

[0039] The extending end of the upper panel 15 abuts on the first lifting plate 4, the extending end of the lower panel 16 abuts on the second lifting plate 11, and the second spring 17 and the third spring 18 are correspondingly connected between the upper panel 15 and the lower panel 16 and the inner wall of the shell 5, and a guide groove is formed on the shell 5 and connected with the extending end of the upper panel 15 and the lower panel 16.

[0040] The frame and the shell 5 are connected through a fixed rod 19, the top of the first lifting plate 4 and the frame are connected through a fourth spring 20, and an active port is formed on the first lifting plate 4 and connected with the fixed rod 19, the output shaft of the first motor 3 is fixedly connected with the first lifting plate 4 through a bearing 21, and the bottom of the first lifting plate 4 is provided with annularly distributed irradiation lamps 22.

[0041] The bearing 21 on the first motor 3 is arranged not only to allow the output shaft of the first motor 3 to rotate freely, but also to ensure that the first lifting plate 4 moves up and down freely. During the up-and-down movement of the first lifting plate 4, the irradiation lamp 22 is synchronously moved. During the upward movement of the irradiation lamp 22, it means that the camera 8 moves downward, and during the upward movement of the irradiation lamp 22, it means that the irradiation area is expanded, so that there are more bright places, so that the image information of the lens can be effectively transmitted to the camera 8.

[0042] When the image information of the lens is captured, the first motor 3 is started. Under the action of mechanical transmission, the camera 8 on the bending rod can be rotated for shooting. At this time, the output shaft of the first motor 3 can drive the first bevel gear 12 to rotate. Under the action of gear meshing transmission, the force can be transmitted to the second bevel gear 13, and the rotation of the two-way cam 14 at both ends is driven. The upper plate 15 on the second spring 17 and the lower plate 16 on the third spring 18 can make the upper plate 15 and the lower plate 16 move up and down in opposite directions. During the upward movement of the upper plate 15, the first lifting plate 4 moves upward. During the downward movement of the lower plate 16, the camera 8 on the second lifting plate 11 moves downward. The first lifting plate 4 is movably connected to the output shaft of the first motor 3 through the bearing 21, which can ensure the free up-and-down movement of the first lifting plate 4. The second lifting plate 11 is fixedly connected to the movable rod 7. In this way, the camera 8 on the bending rod can move up and down during rotation, so that the distance between the camera 8 and the lens is controlled, and the focusing process is automatically completed. The degree of automation is high, the image information is clear and comprehensive, and the camera 8 and the irradiation lamp 22 move synchronously. When the camera 8 moves downward, the obtained image information becomes clearer. When the irradiation lamp 22 moves upward, the light intensity does not need to be too bright to complete the shooting work. When the camera 8 moves upward, the distance between the camera 8 and the lens increases, the image transmission distance is long, and the light intensity is weak. Therefore, the irradiation lamp 22 moves downward to increase the light intensity, thereby making up for the light energy loss in transmission. Through automatic adjustment, the camera 8 is always in the best light shooting environment, effectively improving the image acquisition quality, and stably detecting the defects of the lens.

[0043] In addition, the outer wall of the first bevel gear 12 is meshed with the second bevel gear 13 at both ends, and the second bevel gears 13 rotate in the same direction. In this way, the two-way cam 14 can simultaneously abut against the upper plate 15 and the lower plate 16, even if the rotation directions of the two are opposite. Since the two-way cam 14 is designed as a double convex structure, it can also abut against the upper plate 15 and the lower plate 16 at the same time, so that the upper plate 15 and the lower plate 16 can move up and down normally.

[0044] The support rods are connected between the inner wall of the shell 5 and the two-way cam 14, and the outer wall edge of the support rod is provided with an annular groove connected with the two-way cam 14, which can support and connect the two-way cam 14 and ensure the free rotation of the two-way cam 14.

[0045] The defect detection device for precision lenses further comprises a polishing dust purification mechanism 23, which comprises a second U-shaped plate 24 fixed on the frame, a cylinder 25 mounted on the second U-shaped plate 24, a piston rod of the cylinder 25 extending to a pushing block 26, a second motor 27 fixedly installed on the pushing block 26, an output shaft of the second motor 27 extending to a grinding wheel 28, a tapered air suction pipe 29 arranged on both sides of the grinding wheel 28, and a water tank 31 in a dust removal box 30 connected to one end of the tapered air suction pipe 29 through a pump body.

[0046] In an extended manner, a clamping plate can be adaptively added to the pushing block 26, so that during the downward movement of the pushing block 26, the clamping plate cooperates with the machined surface on the conveying line 42 to play a certain limiting and fixing role, thereby preventing position deviation during polishing and improving the accuracy of polishing.

[0047] The water tank 31 is symmetrically arranged with respect to the center of the dust removal box 30, a third motor 32 is fixedly installed on the outer wall of the dust removal box 30, an output shaft of the third motor 32 penetrates the dust removal box 30 and extends to a central gear 33, the central gear 33 is meshed with reversely moving first and second gear plates 34 and 35 at both ends of the outer wall, one end of the first gear plate 34 is fixed on a partition plate 36 at the bottom of the water tank 31, and the extended end of the second gear plate 35 penetrates the partition plate 36 and extends to a filter screen 38 below an extension pipe 37.

[0048] The filter screen 38 is arranged in an inclined manner on the side wall of the water tank 31, a sliding groove connected with the second gear plate 35 is formed in the partition plate 36, a sealing ring is installed on the sliding groove by viscous fixation, the bottom end of the partition plate 36 is connected to the inner wall bottom of the dust removal box 30 through fifth springs 39 on both sides, and a collecting box 40 between the water tank 31 and the center of the dust removal box 30 is connected through an inclined pipe.

[0049] When the corresponding burr, flash and other conditions appear on the appearance of the lens, the polishing mechanism is polished, and the dust generated in the polishing process is sucked into the dust removal box 30 through the conical suction pipe 29 to filter and purify, which can effectively improve the processing environment and ensure the stability of the processing table. The particulate impurities precipitate on the filter screen 38, and the telescopic pipe 37 on the filter screen 38 can not only exhaust into the water body, but also allow the telescopic pipe 37 to move up and down freely. Under the action of its own weight, the telescopic pipe 37 can automatically return, so that the exhaust port on the telescopic pipe 37 is always in the water body. When the third motor 32 starts, it can drive the rotation of the center gear 33. Under the action of gear meshing transmission, the baffle 36 and the filter screen 38 move vertically and reversely. In this way, during the rising process of the filter screen 38, the baffle 36 drives the water level to drop, thereby prolonging the draining time of the particulate impurities, and then the particulate impurities are discharged into the collection box 40 under the action of inclination. During the descending process of the filter screen 38, the baffle 36 drives the water level to rise, thereby increasing the contact area and time with the smoke dust by increasing the liquid height, so that the smoke dust can be fully purified in the water body, and the purification quality is improved.

[0050] Specifically, the water tank 31 at the top is connected to the exhaust fan 41 through a U-shaped pipe, and the filter screen 38 on both sides is connected to a limiting groove along the height direction of the water tank 31. A sealing cavity is formed between the baffle 36 and the side wall of the water tank 31. During the up and down movement of the filter screen 38 in the limiting groove, the position deviation during the movement can be prevented, thereby ensuring the stability of the transmission member during the movement.

[0051] A kind of precision lens defect detection equipment further includes conveying line 42, conveying line 42 is installed on frame and extends along preset direction, to carry and transport lens, the specific transmission principle of conveying line 42 is as follows:

[0052] The chain wheel starts to rotate under the driving action of the driver, and then a plurality of transmission rollers rotate synchronously under the transmission of the chain. The connection relationship of the above-mentioned transmission assembly is a conventional technical means for those skilled in the art, and will not be described in detail here, but it does not affect the effective implementation of the technical scheme of the present application.

[0053] Conveying line 42 can not only be used to carry and transport lenses, but also can provide corresponding processing space for the external image of the lens and polishing work, which is conducive to improving the stability of the device.

[0054] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes within the technical scope disclosed by the present application according to the technical scheme and inventive concept of the present application, which should be covered within the protection scope of the present application.

[0055] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to provide the best illustration of the application and its practical application to those skilled in the art and to enable those skilled in the art to utilize the application in its best mode. The application is only limited by the claims and their full scope and equivalents.

Claims

1. An apparatus for detecting defects in a precision lens, the apparatus comprising: Include: Rotating shooting mechanism (1), the rotating shooting mechanism (1) includes the first U-shaped plate (2) fixed on the frame, the first motor (3) is installed on the first U-shaped plate (2), the output shaft of the first motor (3) penetrates the first lifting plate (4) and the shell (5) and extends to the telescopic cylinder (6), the bottom end of the telescopic cylinder (6) is provided with recessed groove on both sides and is connected with the movable rod (7), one end of the movable rod (7) is connected with the camera (8) through the bent rod, and the other end extends to the pressing plate (9). The movable rod (7) and the inner wall top of the telescopic cylinder (6) are connected by the first spring (10), and the second lifting plate (11) is fixedly installed on the movable rod (7), the output shaft of the first motor (3) is fixedly installed with the first bevel gear (12) arranged in the shell (5), the outer wall of the first bevel gear (12) is engaged with the second bevel gear (13) on both ends, the center shaft of the second bevel gear (13) is connected with the bidirectional cam (14) on one end, and the bidirectional cam (14) is connected with the upper panel (15) and the lower panel (16) through the movable resistance mode on both ends.

2. The apparatus for detecting defects of a precision lens according to claim 1, wherein, The extending end of the upper panel (15) top is movably resisted on the first lifting plate (4), the extending end of the lower panel (16) bottom is movably resisted on the second lifting plate (11), and the second spring (17) and the third spring (18) are connected between the upper panel (15) and the lower panel (16) and the inner wall of the shell (5), and the shell (5) is provided with a guide groove connected with the extending end of the upper panel (15) and the lower panel (16).

3. The apparatus for detecting defects of a precision lens according to claim 2, wherein, The frame and the shell (5) are connected by the fixed rod (19), the fourth spring (20) is connected between the top of the first lifting plate (4) and the frame, and the first lifting plate (4) is provided with a movable opening connected with the fixed rod (19), and the outer wall edge of the output shaft of the first motor (3) is fixedly connected with the first lifting plate (4) through the bearing (21), and the bottom of the first lifting plate (4) is provided with annularly distributed irradiation lamps (22).

4. The apparatus for detecting defects of a precision lens according to claim 3, wherein, The inner wall of the shell (5) and the bidirectional cam (14) are connected by the support rod, and the outer wall edge of the support rod is provided with an annular groove connected with the bidirectional cam (14).

5. The apparatus for detecting defects of a precision lens according to claim 1, wherein, It also includes a polishing dust purification mechanism (23), the polishing dust purification mechanism (23) includes the second U-shaped plate (24) fixed on the frame, the air cylinder (25) is installed on the second U-shaped plate (24), the piston rod of the air cylinder (25) extends to the push block (26) on one end, the second motor (27) is fixedly installed on the push block (26), the output shaft of the second motor (27) extends to the grinding wheel (28), the grinding wheel (28) is provided with a conical air suction pipe (29) on both sides, and one end of the conical air suction pipe (29) is connected with the water tank (31) in the dust removal box (30) through the pump body.

6. The apparatus for detecting defects of a precision lens according to claim 5, wherein, The water tank (31) is symmetrically arranged relative to the dust removal box (30), a third motor (32) is fixedly installed on the outer wall of the dust removal box (30), the output shaft of the third motor (32) penetrates the dust removal box (30) and extends to the central gear (33), the outer wall of the central gear (33) is meshed with reversely moving first gear plate (34) and second gear plate (35) at both ends, one end of the first gear plate (34) is fixed on the partition plate (36) at the bottom of the water tank (31), and the extended end of the second gear plate (35) penetrates the partition plate (36) and extends to the filter screen (38) below the telescopic pipe (37).

7. The apparatus for detecting defects of a precision lens according to claim 6, wherein, The filter screen (38) is arranged on the side wall of the water tank (31) in an inclined manner, a sliding groove connected with the second gear plate (35) is formed in the partition plate (36), a sealing ring is fixedly installed on the sliding groove by viscosity, the bottom end of the partition plate (36) is connected to the inner bottom wall of the dust removal box (30) through the fifth spring (39) on both sides, and the collection box (40) is connected between the water tank (31) and the inner center of the dust removal box (30) through an inclined pipe.

8. The apparatus for detecting defects of a precision lens according to claim 7, wherein, The top of the water tank (31) is connected to the exhaust fan (41) through a U-shaped pipe, and the filter screen (38) is connected to a limiting groove along the height direction of the water tank (31) on both sides, and a sealing cavity is formed between the partition plate (36) and the side wall of the water tank (31).

9. The apparatus for detecting defects of a precision lens according to claim 1, wherein, It also includes a conveying line (42) which is installed on the frame and extends along a predetermined direction to carry and convey the lenses.

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