Micro-distance lens detection device

Abstract

The invention discloses a micro-distance lens detection device. The micro-distance lens detection device comprises a workbench; the lens limiting and clamping mechanism comprises a first motor installed on the working table, an output shaft of the first motor extends to a first lead screw in the working table, and first lead screw nuts moving in the opposite directions are in spiral transmission with the two ends of the outer wall of the first lead screw correspondingly; one end of the first lead screw nut is fixed to the clamping plate, the clamping plate is connected with a strip-shaped groove in the length direction of the supporting plate, the two ends of the supporting plate are movably connected to the arc-shaped openings in the inner wall of the workbench, and material guiding openings are formed between the two sides of the supporting plate and the inner wall of the workbench. The technical problems that when a focusing system goes wrong, manual distance operation adjustment is needed, the operation mode is inconvenient, the working efficiency is reduced, and practical application of the device is not facilitated can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical component detection devices, and particularly relates to a lens detection device for micro distances. Background Art

[0002] Optical lenses are essential components in machine vision systems, directly affecting the quality of imaging and the implementation and effect of algorithms. Optical lenses can be classified into short-focus lenses, medium-focus lenses, and long-focus lenses according to focal length; wide-angle, standard, and telephoto lenses according to field of view size; and fixed-aperture fixed-focus lenses, manual-aperture fixed-focus lenses, automatic-aperture fixed-focus lenses, manual zoom lenses, automatic zoom lenses, automatic-aperture motorized zoom lenses, motorized three-variable lenses, etc. according to structure.

[0003] When performing detection work on optical lenses, it is often necessary to perform corresponding image analysis on their outer shapes and the surfaces of the lenses through a camera, so as to determine whether the appearance of the lens is within the standard requirements. However, in the existing lens outer shape detection work, the lens is usually placed on the workbench first, and then the image is taken through the camera. However, when the camera takes pictures, it is necessary to perform focusing processing to obtain a clear near-object image, or directly perform distance adjustment to obtain the corresponding image. However, if there is a problem with the focusing system, it is necessary to perform manual distance operation adjustment, which is more inconvenient, reduces work efficiency, is not conducive to the actual application of the device, and has a low degree of automation. Summary of the Invention

[0004] The purpose of the present invention is to provide a lens detection device for micro distances to solve the technical problem that when there is a problem with the focusing system, it is necessary to perform manual distance operation adjustment, which is more inconvenient, reduces work efficiency, and is not conducive to the actual application of the device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A lens detection device for micro distances, comprising: A workbench; A lens limit clamping mechanism, the lens limit clamping mechanism includes a first motor installed on the workbench, the output shaft of the first motor extends to a first lead screw inside the workbench, both ends of the outer wall of the first lead screw are helically driven with reversely moving first lead screw nuts, one end of the first lead screw nut is fixed on a clamping plate, the clamping plate is connected with a strip-shaped groove along the length direction of a support plate, both ends of the support plate are movably connected to arc-shaped openings on the inner wall of the workbench, and guide openings are formed between both sides of the support plate and the inner wall of the workbench, and one end of the guide opening extends to a collection box at the bottom end of the inner wall of the workbench; The first motor upper housing is sleeved and fixedly mounted with a first gear ring, the outer wall of the first gear ring is meshed and driven with a first rotating tooth fixed on the movable shaft, one end of the movable shaft extends to the workbench, and the other end extends to the rotating handle. As the first motor is started, the clamping plates at both ends are clamped or separated from the lens, and as the rotating handle rotates, the clamping plates drive the support plates to swing at the arc-shaped opening as the center of the first lead screw; A lens detection mechanism, the lens detection mechanism comprises a frame placed on a workbench, a second motor is fixedly mounted on the top of the frame, an output shaft of the second motor extends to a driving wheel and a second lead screw in sequence, the driving wheel and the driven wheel are connected via a conveyor belt transmission, one end of the driven wheel is fixed to a rotating rod, both ends of the rotating rod are integrally formed with protrusions, the protrusions are movably embedded in concave grooves connected to both ends of the inner wall of the lifting rod, and a matching rotating camera assembly is connected to the lifting rod; Among them, the outer wall of the second screw is spirally driven with a second screw nut fixed on the bracket, one end of the bracket extends to the fixed ring, and the bracket is provided with a rotating groove connected to the lifting rod, and the cross beams at both ends of the fixed ring are connected with interference grooves along the frame height direction.

[0006] Furthermore, the rotating camera assembly includes a second rotating tooth fixed on the bottom of the lifting rod, the outer wall of the second rotating tooth is meshed with a second gear ring, the rotating ring on the second gear ring is provided with an annular groove along the inner wall edge of the fixed ring, the outer wall edge of the rotating ring is provided with a first roller placed on the inner wall of the annular groove, and a interference groove is formed between the first roller, the annular groove and the rotating ring.

[0007] Furthermore, buffer pads are connected to the upper and lower ends of the outer wall of the rotating ring close to the annular groove.

[0008] Furthermore, a panel is installed on the top of the fixed ring through a column, a third motor is fixedly connected to the panel, an output shaft of the third motor extends to the turntable, a first fixed axis of a circular array is installed on the turntable, one end of the first fixed axis is connected to the second fixed axis through a swing rod, and a first camera is fixedly installed on the bottom of the turntable.

[0009] Furthermore, both ends of the swing arm are connected to the first fixed shaft and the second fixed shaft by a rotatable installation, the second fixed shaft is connected to the telescopic member, the telescopic member includes a pushing rod movably connected to the inner wall of the sleeve, one end of the pushing rod is connected to the second camera, and the other end is fixed to the trapezoidal block, the trapezoidal block is connected to a guide block close to the length direction of the inner wall of the sleeve, and the outer wall edge of the guide block is provided with a slope surface that contacts and fits with the trapezoidal block.

[0010] Furthermore, the trapezoidal block and the side wall of the sleeve are connected by a compression spring, and moving rods are installed at both ends of the trapezoidal block. A guide ring is arranged on the outer wall of the moving rod and is placed on the guide block.

[0011] Furthermore, one end of the moving rod is connected with a limiting ring located between the trapezoidal block and the sleeve side plate. With the start of the third motor, the swing rod drives the second camera on the telescopic member to move closer or separate simultaneously.

[0012] Furthermore, the vertical central axes of the driving wheel and the second lead screw are on the same axis, and the driving wheel and the second lead screw are fixedly connected through a coupling.

[0013] Furthermore, second rollers are arranged around the upper shell of the first motor and are placed on the workbench. An anti - detachment groove connected to the upper shell of the first motor is arranged at one end of the second roller.

[0014] To sum up, due to the adoption of the above - mentioned technical solutions, the beneficial effects of the present invention are as follows: (1) A lens limiting and clamping mechanism is provided. The lens is placed on the support plate. The first motor starts and drives the rotation of the first lead screw. Through the action of screw drive, the clamping plates at both ends perform centering and clamping work on the lens. At this time, rotate the turning handle, so that the first rotating tooth drives the first motor on the first gear ring to start rotating. In this way, the clamping mechanism as a whole can be swung through the first motor, and the clamping plates can swing in the arc - shaped opening with the first lead screw as the center. In the swinging process of the support plate, the particulate impurities generated in the detection process can be introduced into the material guiding port and finally centrally processed through the collection box. The design is reasonable, which can ensure the cleanliness of the workbench surface and is beneficial to ensuring the stability of the subsequent lens imaging detection work.

[0015] (2) A lens detection mechanism is provided. When the second motor starts, it can drive the movement of the second lead screw and the driving wheel at the same time. Through the action of screw drive, the second lead screw can drive the fixed ring on the bracket to move up and down. The driving wheel can drive the rotating rod on the driven wheel to rotate together, and the protruding part on the rotating rod is movably embedded in the concave groove on the lifting rod. In this way, the fixed ring can drive the lifting rod to rotate together and can also allow the lifting rod to rotate freely. Through the above - mentioned linkage mechanism design, the imaging part can enter the position point for shooting the lens. At the same time, the above - mentioned structure is a linkage setting, which reduces the use of electrical appliances, reduces energy consumption, and is convenient for the detection operation of the lens.

[0016] (3) A rotating camera assembly is provided. When the lifting rod rotates, it can drive the rotation of the second rotating gear. Through the meshing transmission between gears, the rotating ring can rotate within the fixed ring. During the rotation of the rotating ring, it can drive the second camera to perform detection work on different surfaces. At the same time, it moves in a rolling friction manner, which can effectively reduce the frictional resistance between transmission parts, thereby improving the service life of the device. In addition, the buffer pad on the abutting groove can not only buffer and protect the outer wall of the rotating ring, but also play a role in abutting and limiting, preventing the transmission parts from deviating in position during movement, thereby improving the detection accuracy and the safety of device use.

[0017] (4) A telescopic member is provided. When the third motor is started, it can drive the rotation of the turntable. Due to the rotational connection of the swing rod, the second camera can perform centering movement, thereby adaptively adjusting the distance between the second camera and the lens. The trapezoidal block in the telescopic member cooperates with the slope on the guiding block, which can not only finely adjust the movement of the trapezoidal block during horizontal movement, but also, when the trapezoidal block contacts the edge of the guiding block, reduce the impact force by expanding the contact surface, preventing the structure from being damaged by collision. At the same time, a guiding ring and a compression spring are provided during the movement of the trapezoidal block, which can ensure the stability of the movement position and also enable the transmission parts to automatically reset during movement, effectively ensuring the detection accuracy, facilitating operation, and having high control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 is a schematic structural view of a micro-distance lens detection device of the present invention Figure 1 ; Figure 2 is a schematic structural view of a micro-distance lens detection device of the present invention Figure 2 ; Figure 3 is a front view of a micro-distance lens detection device of the present invention; Figure 4 is a left view of a micro-distance lens detection device of the present invention; Figure 5 is a schematic connection diagram of the support plate and the workbench of the present invention; Figure 6 is a schematic connection diagram of the first lead screw and the first lead screw nut of the present invention Figure 7 is the enlarged view of part A of the present invention Figure 1 ; Figure 8 is the schematic diagram of the spiral meshing of the worm and the turbine of the present invention Figure 9 is the enlarged view of part B of the present invention Figure 1 ; Figure 10 is the schematic diagram of the connection between the rotating rod and the lifting rod of the present invention Figure 11 is the enlarged view of part C of the present invention Figure 4 ; Figure 12 is the schematic diagram of the connection between the rotating ring and the fixed ring of the present invention Figure 13 is the enlarged view of part D of the present invention Figure 2 ; Figure 14 is the schematic diagram of the structure of the telescopic member of the present invention

[0020] Reference numerals: 1, workbench; 2, lens limit clamping mechanism; 3, first motor; 4, first lead screw; 5, first lead screw nut; 6, clamping plate; 7, support plate; 8, arc-shaped opening; 9, material guiding opening; 10, collection box; 11, first gear ring; 12, first rotating gear; 13, rotating handle; 14, lens detection mechanism; 15, second motor; 16, driving wheel; 17, second lead screw; 18, driven wheel; 19, conveyor belt; 20, rotating rod; 21, protruding part; 22, lifting rod; 23, rotating camera assembly; 24, second lead screw nut; 25, fixed ring; 26, second rotating gear; 27, second gear ring; 28, rotating ring; 29, annular groove; 30, first roller; 31, buffer pad; 32, panel; 33, third motor; 34, turntable; 35, first fixed shaft; 36, swing rod; 37, second fixed shaft; 38, first camera; 39, telescopic member; 40, sleeve; 41, push rod; 42, second camera; 43, trapezoidal block; 44, guide block; 45, slope; 46, compression spring; 47, moving rod; 48, guide ring; 49, second roller; 50, turbine; 51, worm Detailed implementation manners

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0022] Refer to the attached drawings of the specification Figure 1 、 Figure 2 、Figure 5 , Figure 6 and Figure 7 As shown in Figure 5 , Figure 6 and Figure 7 , a micro-distance lens detection device includes: A workbench 1; a lens limit clamping mechanism 2, which includes a first motor 3 installed on the workbench 1. The output shaft of the first motor 3 extends to a first lead screw 4 inside the workbench 1. Both ends of the outer wall of the first lead screw 4 are helically driven with first lead screw nuts 5 moving in opposite directions. One end of the first lead screw nut 5 is fixed to a clamping plate 6. The clamping plate 6 is connected with a strip-shaped groove along the length direction of a support plate 7. Both ends of the support plate 7 are movably connected to arc-shaped openings 8 on the inner wall of the workbench 1. And guide material openings 9 are formed between both sides of the support plate 7 and the inner wall of the workbench 1. One end of the guide material opening 9 extends to a collection box 10 at the bottom end of the inner wall of the workbench 1; Among them, a first gear ring 11 is sleeved and fixedly installed on the upper shell of the first motor 3. The outer wall of the first gear ring 11 is meshed and driven with a first rotating gear 12 fixed on a movable shaft. One end of the movable shaft extends to the workbench 1, and the relative other end extends to a rotating handle 13. As the first motor 3 starts, the clamping plates 6 at both ends clamp or separate from the lens. As the rotating handle 13 rotates, the clamping plate 6 drives the support plate 7 and swings at the arc-shaped opening 8 with the first lead screw 4 as the center; Specifically, the support plate 7 itself can be movably connected to the workbench 1. When the lens is placed on the support plate 7, corresponding imaging detection work can be conveniently carried out. When not in detection work, the lens can be clamped first, and then the support plate 7 is driven to rotate through a transmission member, so that the dust and impurities generated on the surface during the detection process or during long-term use fall into the guide material opening 9 through the tilting action, and are finally centrally processed through the collection box 10. In this way, it is not necessary to move the lens back and forth to carry out the cleaning work, which is convenient for personnel operation and improves work efficiency.

[0023] The lens limit clamping mechanism 2 is set. The lens is placed on the support plate 7. The first motor 3 starts and drives the rotation of the first lead screw 4. Through the helical drive action, the clamping plates 6 at both ends perform centering clamping work on the lens. At this time, the rotating handle 13 is rotated, so that the first rotating gear 12 drives the first motor 3 on the first gear ring 11 to start rotating. In this way, the whole clamping mechanism can be swung through the first motor 3, and the clamping plate 6 can swing at the arc-shaped opening 8 with the first lead screw 4 as the center. In this way, the support plate 7 can introduce the particulate impurities generated during the detection process into the guide material opening 9 during the swinging process, and are finally centrally processed through the collection box 10. The design is reasonable, which can ensure the cleanliness of the surface of the workbench 1 and is conducive to ensuring the stability of the subsequent lens imaging detection work.

[0024] In addition, a positioning hole is provided at the connection between the movable shaft on the first rotating tooth 12 and the workbench 1, and the positioning hole is locked and fixed by a stop pin. This can ensure the stability of the first motor 3 on the first gear ring 11 and prevent shaking, thereby giving the support plate 7 a corresponding balancing effect.

[0025] refer to Figure 1 , Figure 7 and Figure 8 For the method of locking and fixing the first motor 3 by the first rotating tooth 12 in cooperation with the stop pin, a turbine 50 can also be replaced on the outer wall of the first motor 3, and then a worm 51 which is spirally meshed with the turbine 50 is provided, and one end of the worm 51 is connected to the handle 13, so that the helical meshing transmission between the worm 51 and the turbine 50 can also drive the rotation of the upper shell of the first motor 3, and the worm 51 drives the turbine 50 to rotate with "self-locking", so that the first motor 3 can be fixed after rotating to a corresponding angle position, that is, the turbine 50 can only be driven to rotate by the worm 51.

[0026] refer to Figure 1 , Figure 2 , Figure 9 and Figure 10 , the lens detection mechanism 14, the lens detection mechanism 14 includes a frame placed on the workbench 1, a second motor 15 is fixedly installed on the top of the frame, the output shaft of the second motor 15 extends to the driving wheel 16 and the second lead screw 17 in sequence, the driving wheel 16 and the driven wheel 18 are connected by a conveyor belt 19, one end of the driven wheel 18 is fixed on the rotating rod 20, both ends of the rotating rod 20 are integrally formed with a protrusion 21, the protrusion 21 is movably embedded in the concave grooves connected to the two ends of the inner wall of the lifting rod 22, and the lifting rod 22 is connected with a matching rotating camera assembly 23; Among them, the outer wall of the second screw 17 is spirally driven with a second screw nut 24 fixed on the bracket, one end of the bracket extends to the fixed ring 25, and the bracket is provided with a rotating groove connected to the lifting rod 22, and the cross beams at both ends of the fixed ring 25 are connected with interference grooves along the frame height direction.

[0027] A lens detection mechanism 14 is set, and the second motor 15 is started, which can drive the movement of the second screw 17 and the driving wheel 16 at the same time. The second screw 17 can drive the fixing ring 25 on the bracket to move up and down through the spiral transmission action. The driving wheel 16 can drive the rotating rod 20 on the driven wheel 18 to rotate together, and the protrusion 21 on the rotating rod 20 is movably embedded in the concave groove on the lifting rod 22, so that the fixing ring 25 can drive the lifting rod 22 to rotate together and also allow the lifting rod 22 to rotate freely. Through the above-mentioned linkage mechanism design, the camera can enter the position point where the lens is shot. At the same time, the above-mentioned structure is a linkage setting, which reduces the use of electrical appliances, reduces energy consumption, and facilitates the detection operation of the lens.

[0028] The bracket on the second lead screw nut 24 can support and connect the fixed ring 25. At the same time, the cross beams at both ends of the fixed ring 25 can also play a role of motion guidance when moving on the frame, preventing the fixed ring 25 from deviating from its position during the up and down movement. At the same time, the inner wall of the bracket is provided with a rotating groove connected to the rotating rod 20, which can support and connect the rotating rod 20 and ensure the free movement of the rotating rod 20.

[0029] refer to Figure 1 , Figure 4 , Figure 11 and Figure 12 The rotating camera assembly 23 includes a second rotating tooth 26 fixed on the bottom of the lifting rod 22, and the outer wall of the second rotating tooth 26 is meshed with a second gear ring 27 for transmission. A rotating ring 28 on the second gear ring 27 is provided with an annular groove 29 along the inner wall edge of the fixed ring 25, and a first roller 30 is provided on the inner wall of the annular groove 29 at the outer wall edge of the rotating ring 28, and a resistance groove is formed between the first roller 30, the annular groove 29 and the rotating ring 28.

[0030] Buffer pads 31 are connected to the upper and lower ends of the outer wall of the rotating ring 28 near the annular groove 29, and a rotating camera assembly 23 is set. When the lifting rod 22 is rotating, it can drive the second rotating tooth 26 to rotate. Through the meshing transmission between the gears, the rotating ring 28 can rotate in the fixed ring 25. During the rotation, the rotating ring 28 can drive the second camera 42 to perform detection work on different surfaces. At the same time, the movement is carried out in a rolling friction manner, which can effectively reduce the friction resistance between the transmission parts, thereby increasing the service life of the device. In addition, the buffer pad 31 on the interference groove can not only play a buffering and protective role on the outer wall of the rotating ring 28, but also play a role of interference limiting, preventing the transmission parts from deviating from their position during the movement process, thereby improving the detection accuracy and the safety of the device.

[0031] refer to Figure 1 , Figure 2 , Figure 13 and Figure 14, a panel 32 is installed on the top end of the fixed ring 25 through a column. A third motor 33 is fixedly connected to the panel 32. The output shaft of the third motor 33 extends to the turntable 34. An annular array of first fixed shafts 35 is installed on the turntable 34. One end of the first fixed shaft 35 is connected to a second fixed shaft 37 through a swing rod 36. And a first camera 38 is fixedly installed at the bottom of the turntable 34. Both ends of the swing rod 36 are connected to the first fixed shaft 35 and the second fixed shaft 37 in a rotatable mounting manner. The second fixed shaft 37 is connected to a telescopic member 39. The telescopic member 39 includes a push rod 41 movably connected to the inner wall of the sleeve 40. One end of the push rod 41 is connected to a second camera 42, and the other end is fixed to a trapezoidal block 43. A guide block 44 is connected to the trapezoidal block 43 along the length direction of the inner wall of the sleeve 40. And a slope 45 in contact with the trapezoidal block 43 is provided on the outer wall edge of the guide block 44.

[0032] The trapezoidal block 43 and the side wall of the sleeve 40 are connected by a compression spring 46. And moving rods 47 are installed at both ends of the trapezoidal block 43. A guide ring 48 placed on the guide block 44 is provided on the outer wall of the moving rod 47. One end of the moving rod 47 is connected to a limiting ring located between the trapezoidal block 43 and the side plate of the sleeve 40. As the third motor 33 starts, the swing rod 36 drives the second camera 42 on the telescopic member 39 to move closer or separate simultaneously.

[0033] By setting the telescopic member 39, when the third motor 33 starts, it can drive the rotation of the turntable 34. Due to the rotatable connection setting of the swing rod 36, the second camera 42 can be moved centrally, thereby adaptively adjusting the distance between the second camera 42 and the lens. The slope on the trapezoidal block 43 in the telescopic member 39 cooperates with the slope 45 on the guide block 44, which can not only finely adjust the movement of the trapezoidal block 43 during horizontal movement, but also, when the trapezoidal block 43 contacts the edge of the guide block 44, reduce the impact force by expanding the contact surface, preventing the structure from being damaged by collision. At the same time, the trapezoidal block 43 is provided with a guide ring 48 and a compression spring 46 during movement, which can ensure the stability of the movement position and also enable the transmission part to automatically reset during movement, effectively ensuring the detection accuracy, being convenient to operate and having high control accuracy.

[0034] The vertical central axes of the driving wheel 16 and the second lead screw 17 are on the same axis, and the driving wheel 16 and the second lead screw 17 are fixedly connected by a coupling. The setting of the coupling can ensure the effective transmission of the power of the second motor 15 to the driving wheel 16 and the second lead screw 17. Second rollers 49 are provided around the upper shell of the first motor 3 and are placed on the workbench 1. An anti-off groove connected to the upper shell of the first motor 3 is provided at one end of each second roller 49. The anti-off groove on the upper shell of the first motor 3 is recessed inward. In this way, the second rollers 49 are not likely to deviate in position during rolling, so that the second rollers 49 can move precisely on the corresponding tracks.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

[0036] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific embodiments. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A lens detection device for micro distances, characterized in that, include: Workbench (1); A lens limit clamping mechanism (2), the lens limit clamping mechanism (2) comprising a first motor (3) mounted on a workbench (1), the output shaft of the first motor (3) extending to a first lead screw (4) inside the workbench (1), both ends of the outer wall of the first lead screw (4) being spirally driven with a first lead screw nut (5) that moves in the opposite direction, one end of the first lead screw nut (5) being fixed to a clamping plate (6), the clamping plate (6) being connected with a strip groove along the length direction of a support plate (7), both ends of the support plate (7) being movably connected to an arc-shaped opening (8) on the inner wall of the workbench (1), and a material guide opening (9) being formed between both sides of the support plate (7) and the inner wall of the workbench (1), one end of the material guide opening (9) extending to a collection box (10) at the bottom end of the inner wall of the workbench (1); The first motor (3) has a first gear ring (11) sleeved and fixedly mounted on the upper housing, and the outer wall of the first gear ring (11) is meshed and driven with a first rotating tooth (12) fixed on the movable shaft, one end of the movable shaft extends to the workbench (1), and the other end extends to the rotating handle (13), and as the first motor (3) is started, the clamping plates (6) at both ends are clamped or separated from the lens, and as the rotating handle (13) rotates, the clamping plates (6) drive the support plates (7) to swing at the arc-shaped opening (8) with the first lead screw (4) as the center; A lens detection mechanism (14), the lens detection mechanism (14) comprising a frame placed on a workbench (1), a second motor (15) being fixedly mounted on the top of the frame, an output shaft of the second motor (15) extending to a driving wheel (16) and a second lead screw (17) in sequence, the driving wheel (16) and the driven wheel (18) being connected by a conveyor belt (19), one end of the driven wheel (18) being fixed to a rotating rod (20), both ends of the rotating rod (20) being integrally formed with protrusions (21), the protrusions (21) being movably embedded in concave grooves connected to both ends of the inner wall of a lifting rod (22), and a matching rotating camera assembly (23) being connected to the lifting rod (22); The outer wall of the second lead screw (17) is spirally driven with a second lead screw nut (24) fixed on the bracket, one end of the bracket extends to the fixing ring (25), and the bracket is provided with a rotation groove connected to the lifting rod (22), and the cross beams at both ends of the fixing ring (25) are connected with abutment grooves along the height direction of the frame.

2. The lens detection device with a micro distance according to claim 1, characterized in that, The rotating camera assembly (23) comprises a second rotating tooth (26) fixed to the bottom of the lifting rod (22); the outer wall of the second rotating tooth (26) is meshed with a second gear ring (27); a rotating ring (28) on the second gear ring (27) is provided with an annular groove (29) along the inner wall edge of the fixed ring (25); a first roller (30) is provided at the outer wall edge of the rotating ring (28) and is placed on the inner wall of the annular groove (29); and a contact groove is formed between the first roller (30), the annular groove (29) and the rotating ring (28).

3. The lens detection device for a micro distance according to claim 2, characterized in that, Buffer pads (31) are connected to the upper and lower ends of the outer wall of the rotating ring (28) near the annular groove (29).

4. A micro-distance lens detection device according to claim 2, characterized in that, A panel (32) is mounted on the top of the fixing ring (25) via a column, a third motor (33) is fixedly connected to the panel (32), an output shaft of the third motor (33) extends to a turntable (34), a first fixed shaft (35) of an annular array is mounted on the turntable (34), one end of the first fixed shaft (35) is connected to a second fixed shaft (37) via a swing rod (36), and a first camera (38) is fixedly mounted on the bottom of the turntable (34).

5. The lens detection device with a micro distance according to claim 4, characterized in that, Both ends of the swing rod (36) are connected to a first fixed shaft (35) and a second fixed shaft (37) by means of rotational mounting; the second fixed shaft (37) is connected to a telescopic member (39); the telescopic member (39) comprises a push rod (41) movably connected to the inner wall of a sleeve (40); one end of the push rod (41) is connected to a second camera (42); the other end is fixed to a trapezoidal block (43); the trapezoidal block (43) is connected to a guide block (44) in the length direction of the inner wall of the sleeve (40); and the outer wall edge of the guide block (44) is provided with a slope surface (45) in contact with the trapezoidal block (43).

6. The lens detection device for a micro distance according to claim 5, characterized in that The trapezoidal block (43) and the side wall of the sleeve (40) are connected via a compression spring (46), and moving rods (47) are installed at both ends of the trapezoidal block (43). The outer wall of the moving rod (47) is provided with a guide ring (48) placed on the guide block (44).

7. The lens detection device for micro distance according to claim 6, wherein One end of the moving rod (47) is connected to a limiting ring located between the trapezoidal block (43) and the side plate of the sleeve (40), and as the third motor (33) is started, the swing rod (36) drives the second camera (42) on the telescopic member (39) to move together or apart.

8. The lens detection device for a micro distance according to claim 1, characterized in that The vertical central axes of the driving wheel (16) and the second lead screw (17) are maintained on the same axis, and the driving wheel (16) and the second lead screw (17) are fixedly connected via a coupling.

9. The lens detection device for micro distance according to claim 1, characterized in that, Second rollers (49) placed on the workbench (1) are provided around the upper shell of the first motor (3), and one end of the second roller (49) is provided with an anti-slip groove connected to the upper shell of the first motor (3).

Images