Detection device for optical lens

Abstract

The detection device for the optical lens comprises a base, a guide rail is arranged on the base, a detection table is arranged on the guide rail in a sliding mode, a storage rack is arranged on the detection table, a detection head is arranged on the base, and the detection head is right opposite to the storage rack; the detection bench is provided with a radial positioning assembly and an axial positioning assembly which carry out radial positioning and axial positioning on the lens respectively. The motor can simultaneously control the radial positioning assembly and the axial positioning assembly to realize radial and axial positioning of the lens, and the electric push rod controls the rotating wheel to rotate the adjusting ring, detects the opening smoothness of the adjusting ring, and controls the opening of the airflow pipeline in a linkage manner. And pressure gas in the pipeline can be sprayed out.

Description

Technical Field

[0001] The present invention relates to the field of optical lens detection, and particularly to a detection device for an optical lens. Background Art

[0002] An optical lens is a core component of an optical imaging system that converges light rays from an object onto an imaging plane (such as a sensor or film) to form a clear image. The performance of the optical lens directly affects the imaging quality, so detection is a key link to ensure the reliability of the lens.

[0003] The detection of optical lenses mainly includes: optical performance detection, such as MTF (Modulation Transfer Function), distortion and aberration detection, detection of chromatic dispersion phenomenon, and optimization of lens coating technology; mechanical and structural detection; such as focusing accuracy, anti-shake performance, lens assembly accuracy, etc.; environmental adaptability detection, mainly including temperature and humidity tests to ensure the stability of the lens in different environments, as well as shock and vibration resistance to simulate physical shocks during transportation or use and verify the structural strength.

[0004] Currently, for the detection of optical lenses, the clamping and positioning of the lens rely on radial clamping by jaws, which can adapt to lenses of different diameters, but at the same time, axial positioning of the lens cannot be achieved. At the same time, for the detection of the mechanical focusing mechanism of the lens, it is necessary to control the rotation of the adjustment ring. Currently, it is manually rotated by an operator to detect the smoothness of the rotation of the adjustment ring, and the focusing effect is detected simultaneously, with low automation. Moreover, currently, the temperature and humidity tolerance tests of the lens are generally not carried out.

[0005] The present invention provides a detection device for an optical lens, which can achieve the purpose of synchronously clamping the lens radially and axially, automatically control the rotation of the adjustment ring to detect smoothness and fully expose the lens surface, and perform temperature tolerance detection on the lens surface. Summary of the Invention

[0006] According to the problems raised in the background art, the present invention provides a detection device for an optical lens to solve, and the following further elaborates on the present invention.

[0007] An inspection device for an optical lens, comprising a base, a guide rail is provided on the base, a detection table is slidably provided on the guide rail, a placement rack is provided on the detection table, a detection head is provided on the base, and the detection head is opposite to the placement rack; an axial positioning assembly for axially positioning the lens is provided on the detection table, the axial positioning assembly includes a motor connected to the detection table, and lead screws rotatably arranged side by side on the detection table, the two lead screws rotate synchronously, two sections of threads with opposite helix directions are provided on the lead screws, a moving frame is fitted on each section of the thread, a first connecting rod is rotatably connected to the moving frame, the first connecting rod is rotatably connected to a lifting frame, a guide rod is connected to the detection table, the lifting frame is slidably fitted with the guide rod through the support arm thereon, a sliding sleeve is sleeved outside one guide rod, an axial sleeve is sleeved outside the sliding sleeve, an axial positioning rod is connected to the top of the axial sleeve, a first spring is sleeved outside the sliding sleeve, an upper limit cap is connected to the top of the sliding sleeve, and two shoulders are provided at the bottom, the upper end and the lower end of the first spring respectively abut against the upper limit cap and the axial sleeve, the support arm of the lifting frame is fitted on the lower shoulder of the sliding sleeve, and the bottom of the axial sleeve is fitted on the upper shoulder of the sliding sleeve.

[0008] Preferably, it further includes a radial positioning assembly, the radial positioning assembly includes a guide cylinder connected to the detection table, a second guide rod is slidably fitted in the guide cylinder, a telescopic member is connected to the end of the second guide rod, a second moving frame is connected to the output end of the telescopic member, a radial positioning member is connected to the second moving frame, a third guide rod is further connected to the detection table, the second moving frame is slidably fitted on the third guide rod, and a second spring is provided outside the telescopic member. The second guide rod is controlled to move, and the radial positioning member abuts against the outer wall of the lens and stops, so as to adapt to lenses with different diameters.

[0009] Preferably, a linkage rod is rotatably connected to the detection table, and two chutes are provided on the linkage rod; a sliding column is connected to the moving frame, a second connecting rod is connected to the second guide rod, and second sliding columns are connected to both sides of the second connecting rod, and the sliding column and the second sliding column are respectively located in the chutes on the linkage rod. By controlling the motor, the radial positioning assembly and the axial positioning assembly can be actuated to simultaneously position the lens radially and axially.

[0010] Preferably, the second moving frame is connected with a mounting rod, a rotating wheel is connected with the mounting rod, a driven wheel is connected with the bottom of the mounting rod, a gear is rotatably connected with the detection platform, the gear is coaxially connected with the driving wheel, and the gear and the driving wheel rotate synchronously; the detection platform is connected with a guide slot frame, a fourth guide rod is arranged in the guide slot frame, a slider is built in the guide slot frame and is slidably matched with the fourth guide rod, a third spring is sleeved on the fourth guide rod, and the two ends of the third spring contact the slider and the inner wall of the guide slot frame respectively, a tensioning wheel is rotatably connected with the slider, and the driven wheel, the driving wheel and the tensioning wheel are connected through a second conveyor belt; the detection platform is also connected with an electric push rod, and the output of the electric push rod is connected with a rack, and the rack is meshed with the gear. Controlling the electric push rod can control the rotation of the adjusting ring in linkage.

[0011] Preferably, the top of the axial sleeve is connected to a nozzle bracket, the nozzle bracket is connected to a nozzle, the nozzle is connected to an air pipe, and the pressurized gas in the air pipe is sprayed from the nozzle to the lens, so as to spray air to the lens for temperature resistance testing.

[0012] Preferably, the rack is connected with a second telescopic member, the second telescopic member is slidably connected with an extrusion frame, the second telescopic member is provided with a fourth spring, one side of the extrusion frame is connected with a roller, and the end is set as an extrusion slope; the detection platform is connected with a guide frame, the guide frame is provided with a wheel groove, the side of the guide frame away from the wheel groove is provided with a slope surface, the side away from the wheel groove is also rotatably connected with a one-way plate, and the rotation connection between the one-way plate and the guide frame is provided with a torsion spring; a valve is provided on the airflow pipeline, the valve is rotatably connected with a screw sleeve, the screw sleeve is connected to the valve plate inside the valve, the screw sleeve is matched with a screw, the valve and the screw are connected with an ear plate, the ear plates are connected by a third telescopic member, the third telescopic member is provided with a fifth spring, and the end of the rotating member acts on the extrusion frame. When the lens needs to be blown for testing, the lens is in the open state, the linkage airflow pipeline is in the passage state, and the airflow resistance test is completed.

[0013] Beneficial effect: Compared with the prior art, the present invention can realize radial and axial positioning of the lens by controlling the radial positioning component and the axial positioning component through a motor at the same time, and at the same time control the rotating wheel to rotate the adjusting ring through the electric push rod, detect the opening smoothness of the adjusting ring, and control the opening of the airflow pipeline in a linkage manner. Only after the lens is opened, the pressurized gas in the pipeline can be ejected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 : A schematic diagram of the structure of a detection device for an optical lens according to the present invention;

[0015] Figure 2 : Schematic diagram of the structure of the test table and the components installed on the surface;

[0016] Figure 3 :Figure 1 Schematic enlarged view of the structure at position A in [the figure];

[0017] Figure 4 : Schematic diagram of the structure of each component installed under the detection tabletop;

[0018] Figure 5 : Figure 4 Schematic enlarged view of the structure at position B in [the figure];

[0019] Figure 6 : Figure 5 Schematic diagram of the internal structure of the valve at position C in [the figure];

[0020] In the figure: base 1, guide rail 2, detection table 3, storage rack 4, detection head 5, motor 6, lead screw 7, pulley 8, conveyor belt 9, moving frame 10, first connecting rod 11, lifting frame 12, guide rod 13, support arm 121, sliding sleeve 14, axial sleeve 15, axial positioning rod 16, first spring 17, upper limit cap 18, guide cylinder 19, second guide rod 20, telescopic member 21, second moving frame 22, radial positioning member 23, third guide rod 24, second spring 25, linkage rod 26, chute 261, sliding column 27, second connecting rod 28, second sliding column 29, mounting rod 30, runner 31, driven wheel 32, gear 33, driving wheel 34, guide groove frame 35, fourth guide rod 36, slider 37, third spring 38, tension pulley 39, second conveyor belt 40, electric push rod 41, rack 42, nozzle support 43, nozzle 44, air pipe 45, second telescopic member 46, extrusion frame 47, extrusion inclined surface 471, fourth spring 48, roller 49, guide frame 50, pulley groove 501, slope surface 502, one-way plate 51, valve 52, valve plate 53, nut sleeve 54, screw rod 55, ear plate 56, third telescopic member 57, fifth spring 58. Specific implementation manner

[0021] Next, a specific embodiment of the present invention will be elaborated in detail in conjunction with the attached Figures 1 - 6 drawings.

[0022] Referring to the attached Figures 1 - 2 drawings, a detection device for an optical lens includes a base 1, a guide rail 2 is provided on the base 1, a detection table 3 is slidably provided on the guide rail 2, a storage rack 4 is provided on the detection table 3, and the lens to be detected is placed on this storage rack 4. Before detection, the detection table 3 is pulled out to place the lens on the storage rack, and then the detection table 3 is pushed back. A detection head 5 is provided on the base 1, and during detection, the detection head 5 faces the storage rack 4, and image information from the lens can be obtained.

[0023] A radial positioning assembly and an axial positioning assembly for respectively performing radial and axial positioning on the lens are provided on the detection table 3.

[0024] Referring to the attachedFigures 2 - 3 The axial positioning assembly includes a motor 6 connected to the detection platform 3, and screw rods 7 rotatably arranged side by side on the detection platform 3, wherein one of the screw rods 7 is connected to the output shaft of the motor 6, and both screw rods 7 are key-connected with pulleys 8, and the pulleys 8 are connected through a transmission belt 9. The screw rod 7 is provided with two sections of threads with opposite rotation directions, and each section of the threads is matched with a moving frame 10. The moving frame 10 is rotatably connected with a first connecting rod 11, and the first connecting rod 11 is rotatably connected to a lifting frame 12. A guide rod 13 is connected to the detection table 3, and the lifting frame 12 slides with the guide rod 13 through the support arm 121 thereon; a guide rod 13 is provided with a sliding sleeve 14 on the outer sleeve, and an axial sleeve 15 is also provided on the outer sleeve of the sliding sleeve 14. The top of the axial sleeve 15 is connected to an axial positioning rod 16, and the sliding sleeve 14 is provided with a first spring 17 on the outer sleeve, and the top of the sliding sleeve 14 is connected to an upper limit cap 18, and the bottom is provided with two shoulders. The upper and lower ends of the first spring 17 respectively abut against the upper limit cap 18 and the axial sleeve 15, the support arm 121 of the lifting frame 12 is matched with the lower shoulder on the sliding sleeve 14, and the bottom of the axial sleeve 15 is matched with the upper shoulder on the sliding sleeve 14.

[0025] When the lens placed on the storage rack 4 is axially positioned, the motor 6 controls the screw rod 7 to rotate, so that the two movable racks 10 thereon move away from each other, the lifting rack 12 will descend, and the support arm 121 will slide downward on the guide rod 13. During the sliding process, the support arm 121 will press down the lower boss on the sliding sleeve 14, so that the sliding sleeve 14 will move downward with the lifting rack 12. At this time, based on the elastic force of the first spring 17, the axial sleeve 15 is pressed tightly against the upper boss on the sliding sleeve 14, and the axial sleeve 15 will also move downward with the lifting rack 12 until the axial positioning rod 16 connected to the axial sleeve 15 contacts the top of the lens. It should be clear that before the axial positioning rod 16 contacts the top of the lens, the lifting rack 12, the sliding sleeve 14, the first spring 17, the axial sleeve 15, and the axial positioning rod 16 constitute a whole that descends in a linked manner. After the axial positioning rod 16 contacts the top of the lens, the motor 6 continues to control the lifting frame 12 to descend a certain distance. At this time, based on the blocking of the axial positioning rod 16 by the lens, the axial sleeve 15 remains stationary at the current height, and the sliding sleeve 14 will also descend synchronously with the lifting frame 12. At this time, the upper limit cap 18 on the top moves downward and disengages from the top plate of the axial sleeve 15, and compresses the first spring 17. The bottom of the axial sleeve 15 also disengages from the upper shoulder of the sliding sleeve 14. At this time, the elastic force of the first spring 17 will be transmitted to the axial positioning rod 16 through the axial sleeve 15, maintaining the continuous downward pressure of the axial positioning rod 16 on the lens.

[0026] Reference Figure 2 and 4, the radial positioning assembly includes a guiding cylinder 19 connected to the detection table 3. The guiding cylinder 19 is slidably and fittingly connected to a second guiding rod 20. The end of the second guiding rod 20 is connected with a telescopic member 21. The output end of the telescopic member 21 is connected with a second moving frame 22. A radial positioning member 23 is connected to the second moving frame 22. The detection table 3 is further connected with a third guiding rod 24. The second moving frame 22 is slidably fitted on the third guiding rod 24. A second spring 25 is arranged outside the telescopic member 21.

[0027] When radially positioning the lens placed on the storage rack 4, the second guiding rod 20 is controlled to move, and moves forward under the guiding action of the guiding cylinder 19. The second moving frame 22 slides on the third guiding rod 24 under the pushing of the second spring 25 until the radial positioning member 23 abuts against the outer wall of the lens and stops. After that, the second guiding rod 20 is controlled to continue to move forward for a certain distance. At this time, the telescopic member 21 retracts, and the second spring 25 is compressed, which can adapt to lenses of different diameters.

[0028] Reference appendix Figure 2 , in this embodiment, to adapt to lenses with different diameter-height ratios, and the motor 6 can be used to control the actions of the radial positioning assembly and the axial positioning assembly to simultaneously realize the radial and axial positioning of the lens. The specific solution is as follows: A linkage rod 26 is rotatably connected to the detection table 3, and two sliding grooves 261 are arranged on the linkage rod 26; A sliding column 27 is connected to the moving frame 10. The second guiding rod 20 is connected with a second connecting rod 28. Two second sliding columns 29 are connected to both sides of the second connecting rod 28. The sliding column 27 and the second sliding columns 29 are respectively located in the sliding grooves 261 on the linkage rod 26.

[0029] When the motor 6 operates and the moving frame 10 moves, on the one hand, it enables the axial positioning assembly to perform axial positioning when it moves. On the other hand, the sliding column 27 slides in the sliding groove 261 on the linkage rod 26 and pushes the linkage rod 26 to rotate. The rotating linkage rod 26 will link the second connecting rod 28 to move linearly closer to or away from the guiding cylinder 19, thereby linking the movement of the second guiding rod 20. In this way, it is realized that the actions of the radial positioning assembly and the axial positioning assembly can be achieved by a single power source, that is, the motor 6, and the positioning of the lens can be completed at one time. The existence of the first spring 17 and the second spring 25 can adapt to lenses with different diameter-height ratios.

[0030] Reference appendix Figure 2 , Figure 4 and Figure 5The second movable frame 22 is connected to a mounting rod 30, and the mounting rod 30 is connected to a rotating wheel 31. The setting height of the rotating wheel 31 on the mounting rod 30 is adjusted according to the height of the lens adjustment ring. The rotating wheel 31 moves with the second movable frame 22. When the radial positioning member 23 abuts against the outer wall of the lens, the rotating wheel 31 also contacts the lens adjustment ring. A driven wheel 32 is connected to the bottom of the mounting rod 30, and a gear 33 is also rotatably connected to the testing platform 3. The gear 33 is coaxially connected to a driving wheel 34, and the gear 33 rotates synchronously with the driving wheel 34; a guide slot frame 35 is also connected to the testing platform 3, and a fourth guide rod 36 is arranged in the guide slot frame 35. A slider 37 that is slidably fitted on the fourth guide rod 36 is built in the guide slot frame 35, and a third spring 38 is sleeved on the fourth guide rod 36. The two ends of the third spring 28 contact the slider 37 and the inner wall of the guide slot frame 35 respectively, and a tensioning wheel 39 is rotatably connected to the slider 37. The driven wheel 32, the driving wheel 34 and the tensioning wheel 39 are connected by a second conveyor belt 40; an electric push rod 41 is also connected to the testing platform 3, and the output of the electric push rod 41 is connected to a rack 42, and the rack 42 meshes with the gear 33.

[0031] When it is necessary to detect the smooth rotation of the adjustment ring, and to open or close the hidden lens, the electric push rod 41 can be controlled to rotate the adjustment ring. Specifically, the electric push rod 41 extends to push the rack 42 to move, and the rack drives the gear 33 to rotate through meshing transmission, thereby driving the driving wheel 34 to rotate, and the rotation action is transmitted to the driven wheel 32 through the second conveyor belt 40. Finally, the rotating wheel 31 is driven to rotate through the mounting rod 30, and the rotating wheel 31 contacts the lens adjustment ring, and the lens adjustment ring rotates in a linked manner.

[0032] The existence of the tensioning wheel 39 is to maintain the second conveyor belt 40 in a taut state at all times under the elastic force of the third spring 28. At the same time, because the rotating wheel 31 is connected to the second movable frame 22, when the radial positioning assembly radially positions the lens, the rotating wheel 31 also moves toward the lens, that is, the driven wheel 32 has the freedom of movement, while the driving wheel 34 has only the freedom of rotation. At this time, the change in the distance between the driven wheel 32 and the driving wheel 34 will be adjusted by the tensioning wheel 39.

[0033] Reference Figures 2 - 3 The top of the axial sleeve 15 is connected to a nozzle bracket 43, and the nozzle bracket 43 is connected to a nozzle 44. The nozzle 44 is connected to an air pipe 45. The pressurized gas in the air pipe 45 is sprayed from the nozzle 44 to the lens, so that the temperature resistance of the lens can be tested.

[0034] Reference Figures 4 - 6, according to common sense, when detecting the temperature resistance of the lens, the adjusting ring must be in the open state. In this embodiment, a linkage design is carried out for the pressurized air pipeline, that is, only after the adjusting ring is opened, the pressurized air pipeline can be opened and the pressurized gas inside can be ejected. The specific solution is as follows: A second telescopic member 46 is connected to the rack 42, an extrusion frame 47 is slidably connected to the second telescopic member 46, a fourth spring 48 is sleeved outside the second telescopic member 46, a roller 49 is connected to one side of the extrusion frame 47, and the end is provided with an extrusion inclined surface 471. A guide frame 50 is connected to the detection table 3, a pulley groove 501 is provided on the guide frame 50, a slope surface 502 is provided on one side of the guide frame 50 away from the pulley groove 501, and a one-way plate 51 is rotatably connected to the side away from the pulley groove 501. A torsion spring is provided at the rotational connection of the one-way plate 51 and the guide frame 50, and the free end of the one-way plate 51 abuts against the slope surface 502 under the action of the torsion spring. A valve 52 is provided on the air pipeline, the valve plate 53 in the valve 52 rotates to open or close the air pipeline, a screw sleeve 54 is rotatably connected outside the valve 52, the valve plate 53 is connected to the screw sleeve 54 to form a linkage rotation unit, a screw rod 55 is also engaged with the screw sleeve 54, ears 56 are connected to the valve 52 and the screw rod 55, and the ears 56 are connected by a third telescopic member 57. A fifth spring 58 is sleeved outside the third telescopic member 57, and the end of the rotating member 54 acts on the extrusion frame 47.

[0035] When it is necessary to blow air to detect the lens, the lens is pre-opened (usually after other detection steps are completed). After that, the electric push rod 41 acts to pull the rack 42 to move, and the lens is closed. The closing process has been described before, so it will not be repeated here. During this process, the extrusion frame 47 moves synchronously. Due to the elastic force of the fourth spring 48, the roller 49 always contacts the outer wall of the guide frame 50 and rolls on it until it reaches the pulley groove 501. At this time, the electric push rod 41 reaches the stroke limit and the lens is in the closed state. When reaching the pulley groove 501, under the elastic force of the fourth spring 48, the roller 49 enters the guide frame 50 from the pulley groove 501 and presses on the inner wall of the guide frame 50. The extrusion frame 47 moves closer to the guide frame 50. Then the electric push rod 41 acts in the reverse direction, and the roller 49 moves towards the slope surface 502. During the process, the extrusion inclined surface 471 of the extrusion frame 47 first extrudes the screw rod 55, the screw rod 55 moves linearly upward, and drives the nut 54 to rotate through screw transmission, thereby driving the valve plate 53 to rotate, completing the opening operation of the air pipeline, and the pressurized gas in the pipeline is sprayed onto the lens. Before the roller 49 reaches the slope surface 502, the air pipeline is in a continuously open state, and the air resistance detection is completed. When the electric push rod 41 extends to reach the stroke limit, the roller 49 moves on the slope surface 502, will push open the one-way plate 51, and at the same time compress the fourth spring 48, the distance between the extrusion frame 47 and the guide frame 50 is pulled apart, and the one-way plate 51 and the valve plate 53 are reset.

[0036] In the present invention, the radial and axial positioning of the lens can be achieved by controlling the radial positioning component and the axial positioning component through the motor at the same time. At the same time, the electric push rod is used to control the rotating wheel to rotate the adjustment ring, detect the opening smoothness of the adjustment ring, and link the control of the opening of the airflow pipeline. Only after the lens is opened, the pressurized gas in the pipeline can be ejected.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection device for an optical lens, comprising a base (1), a guide rail (2) is provided on the base (1), a detection table (3) is slidably provided on the guide rail (2), a storage rack (4) is provided on the detection table (3), and a detection head (5) is provided on the base (1), and the detection head (5) is facing the storage rack (4); characterized in that: An axial positioning assembly for axially positioning the lens is provided on the detection table (3). The axial positioning assembly includes a motor (6) connected to the detection table (3), and lead screws (7) rotatably arranged side by side on the detection table (3). The two lead screws (7) rotate synchronously. Two sections of threads with opposite helix directions are provided on the lead screws (7), and a moving frame (10) is fitted on each section of the thread. A first connecting rod (11) is rotatably connected to the moving frame (10), and the first connecting rod (11) is rotatably connected to a lifting frame (12). A guide rod (13) is connected to the detection table (3), and the lifting frame (12) is slidably fitted with the guide rod (13) through a support arm (121) thereon. A sliding sleeve (14) is sleeved outside a guide rod (13), an axial sleeve (15) is sleeved outside the sliding sleeve (14), an axial positioning rod (16) is connected to the top of the axial sleeve (15), a first spring (17) is sleeved outside the sliding sleeve (14), an upper limit cap (18) is connected to the top of the sliding sleeve (14), and two shoulders are provided at the bottom. The upper end and the lower end of the first spring (17) respectively abut against the upper limit cap (18) and the axial sleeve (15). The support arm (121) of the lifting frame (12) is fitted on the lower shoulder of the sliding sleeve (14), and the bottom of the axial sleeve (15) is fitted on the upper shoulder of the sliding sleeve (14).

2. The detection device for an optical lens according to claim 1, characterized in that: It further includes a radial positioning assembly. The radial positioning assembly includes a guide cylinder (19) connected to the detection table (3), a second guide rod (20) is slidably fitted in the guide cylinder (19), a telescopic member (21) is connected to the end of the second guide rod (20), a second moving frame (22) is connected to the output end of the telescopic member (21), a radial positioning member (23) is connected to the second moving frame (22), a third guide rod (24) is further connected to the detection table (3), and the second moving frame (22) is slidably fitted on the third guide rod (24). A second spring (25) is provided outside the telescopic member (21).

3. The detection device for an optical lens according to claim 2, characterized in that: A linkage rod (26) is rotatably connected to the detection table (3), and two chutes (261) are provided on the linkage rod (26); a sliding column (27) is connected to the moving frame (10), a second connecting rod (28) is connected to the second guide rod (20), and second sliding columns (29) are connected to both sides of the second connecting rod (28). The sliding column (27) and the second sliding columns (29) are respectively located in the chutes (261) on the linkage rod (26).

4. The detection device for an optical lens according to claim 3, wherein: An installation rod (30) is connected to the second moving frame (22). A runner (31) is connected to the installation rod (30). A driven wheel (32) is connected to the bottom of the installation rod (30). A gear (33) is rotatably connected to the detection table (3). A driving wheel (34) is coaxially connected to the gear (33). The gear (33) and the driving wheel (34) rotate synchronously. A guide groove frame (35) is connected to the detection table (3). A fourth guide rod (36) is provided in the guide groove frame (35). A slider (37) slidably fitted on the fourth guide rod (36) is provided inside the guide groove frame (35). A third spring (38) is sleeved on the fourth guide rod (36). Two ends of the third spring (28) respectively contact the slider (37) and the inner wall of the guide groove frame (35). A tension wheel (39) is rotatably connected to the slider (37). The driven wheel (32), the driving wheel (34) and the tension wheel (39) are connected by a second conveyor belt (40). An electric push rod (41) is further connected to the detection table (3). An output of the electric push rod (41) is connected to a rack (42). The rack (42) meshes with the gear (33).

5. The detection device for an optical lens according to claim 4, wherein: A nozzle support (43) is connected to the top of the axial sleeve (15). A nozzle (44) is connected to the nozzle support (43). The nozzle (44) communicates with an air pipe (45). The pressurized gas in the air pipe (45) is sprayed from the nozzle (44) onto the lens.

6. The detection device for an optical lens according to claim 5, characterized in that: A second telescopic member (46) is connected to the rack (42). A pressing frame (47) is slidably connected to the second telescopic member (46). A fourth spring (48) is sleeved outside the second telescopic member (46). A roller (49) is connected to one side of the pressing frame (47). The end portion is provided with a pressing inclined surface (471). A guide frame (50) is connected to the detection table (3). A pulley groove (501) is provided on the guide frame (50). A slope surface (502) is provided on one side of the guide frame (50) away from the pulley groove (501). A one-way plate (51) is rotatably connected to the side away from the pulley groove (501). A torsion spring is provided at the rotational connection of the one-way plate (51) and the guide frame (50). A valve (52) is provided on the air flow pipeline. A screw sleeve (54) is rotatably connected to the outside of the valve (52). The screw sleeve (54) is connected to a valve plate (53) inside the valve. A screw rod (55) is engaged with the screw sleeve (54). Ear plates (56) are connected to the valve (52) and the screw rod (55). The ear plates (56) are connected by a third telescopic member (57). A fifth spring (58) is sleeved outside the third telescopic member (57). The end of the rotating member (54) acts on the pressing frame (47).

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