Lens testing device

Abstract

The invention discloses a lens testing device, which belongs to the technical field of lens testing and comprises a base and a top plate fixedly connected to the top end, through holes penetrating through the upper side and the lower side of the top plate are symmetrically formed in the top plate, the upper end of each through hole in the top plate is fixedly connected with a limiting pipe, and the upper end of a corresponding limiting rod extends into each limiting pipe. An air cylinder is further mounted on the upper surface of the top plate, the telescopic end of the air cylinder movably penetrates to the position below the top plate, the telescopic end of the air cylinder is fixedly connected with a mounting plate, and the upper surface of the mounting plate is connected with the lower ends of the limiting rods. When the device is used, an external air source is not needed, a motor does not need to be configured, the motor does not need to be matched with the external air source, the stability of the device is better, it is guaranteed that the device can stably improve the testing efficiency of the lens, energy consumption can be reduced, energy conservation and emission reduction are facilitated, in addition, the tested lens can be pulled out in time, and the testing efficiency is improved. And the test efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lens testing, and specifically provides a lens testing device. Background Technique

[0002] In the field of optical imaging, as a core component, the performance of a lens directly determines key indicators such as imaging clarity, color reproduction, and distortion degree. With the rapid development of industries such as smartphones, security monitoring, drone aerial photography, and medical imaging, the market's requirements for the quality and performance of lenses are becoming increasingly stringent. Therefore, an efficient and accurate lens testing device has become an important link in ensuring product quality. A lens testing device can test a lens to ensure its ex-factory quality. When the existing lens testing devices are in use, there are still some technical problems. An optical lens testing device disclosed in CN119354501A needs to manually pull out a sliding rack during use, so it cannot ensure that the sliding rack can be promptly withdrawn after the lens test is completed. In addition, before pulling out the sliding rack, it is necessary to control a driving motor and a gas source to rotate a gas guiding column, drive a suction cup to flip, and after the suction cup flips, adsorb the tested lens. This requires a certain coordination between the gas source and the driving motor to ensure that after the suction cup flips and presses on the lens, the driving motor stops running, and the gas source extracts the gas in the gas guiding column to make the suction cup adsorb the lens, and then the driving motor is reversed so that the suction cup adsorbs the lens and then flips. This means that during use, if the driving motor and the gas source malfunction and the starting timing of the two is incorrect, it will lead to chaos in the testing process of the lens testing device and is not conducive to its stable lens testing. Therefore, a lens testing device is needed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a lens testing device to solve the problems that the existing lens testing devices cannot ensure the timely extraction of the sliding rack and the stable progress of the testing process during use as mentioned in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A lens testing device includes a base and a top plate fixedly connected to the top end. Through holes penetrating the upper and lower sides are symmetrically formed on the top plate. At the upper end of each through hole on the top plate, a limiting tube is fixedly connected, and the upper end of a corresponding limiting rod extends into each limiting tube. A cylinder is also installed on the upper surface of the top plate, and the telescopic end of the cylinder movably penetrates to the lower side of the top plate. The telescopic end of the cylinder is fixedly connected with a mounting plate, and the upper surface of the mounting plate is connected to the lower end of the limiting rod. A test bench is installed between the mounting plate and the base. A pushing component is connected to the limiting rod, and the pushing component includes a drive shaft tube connected to the base through a damping bearing. A feeding component is installed on the pushing component, and the feeding component includes a suction cup for adsorbing the lens.

[0005] Preferably, the test bench is composed of an upper fixture and a lower fixture. The upper fixture is fixedly connected to the base, the lower fixture is installed on the lower surface of the mounting plate, and the upper fixture and the lower fixture are correspondingly arranged.

[0006] Preferably, the pushing component includes a triangular plate fixedly connected to the limiting rod. The lower end of the triangular plate is connected to the top end of a shaft rod, and the lower end of the shaft rod movably extends into the interior of the drive shaft tube. A guiding block is arranged on the part of the shaft rod inside the drive shaft tube. A folded line groove is arranged on the inner side of the drive shaft tube, and the guiding block is engaged and slidably connected in the folded line groove.

[0007] Preferably, the pushing component further includes a transmission gear key-connected to the outside of the drive shaft tube, and two mutually parallel rack plates are meshed and connected to the transmission gear. The lower surface of the rack plate is fixedly connected to the base through a sliding structure.

[0008] Preferably, the feeding component further includes sliding grooves each arranged on the upper surface of each rack plate, and the lower end of a mounting seat is slidably connected in the sliding groove. Three protrusions are arranged at the upper end of the mounting seat. A twist shaft tube is connected between the first protrusion and the second protrusion at the upper end of the mounting seat. The two ends of the twist shaft tube respectively penetrate through the first protrusion and the second protrusion at the upper end of the mounting seat through bearings. A twist screw rod is threadedly penetrated through the twist shaft tube, and mutually matching twist-shaped threads are arranged on the outer side of the twist screw rod and the inner side of the twist shaft tube. A strip-shaped hole with a prismatic cross-section is arranged at the end of the twist screw rod close to the third protrusion at the upper end of the mounting seat, and a prismatic limiting strip with a shape matching it movably extends into the strip-shaped hole. The end of the limiting strip outside the twist screw rod is fixedly connected to the third protrusion at the upper end of the mounting seat. A first spring is arranged between the third protrusion at the upper end of the mounting seat and the end of the twist screw rod close to it. An extrusion seat is fixedly connected to each rack plate, and the extrusion seat corresponds to the twist screw rod.

[0009] Preferably, the feeding assembly further includes mounting grooves provided on the side surfaces of each rack plate, and piston tubes are installed in each mounting groove. The rear end of a piston rod is slidably connected in the piston tube without a gap, and the front end of the piston rod slidably penetrates through the piston tube without a gap.

[0010] Preferably, a second spring is installed between the rear end of the piston rod and the inner side of the piston tube. The area between the rear end and the front end of the piston rod in the piston tube communicates with the lower end of a guide air pipe. An inclined annular groove is provided on the outer side of the twist drill shaft tube, and a transmission seat is nested on the outer side of the twist drill shaft tube. An inclined and through arc-shaped groove is provided on the transmission seat and penetrates through the inner and outer sides thereof, and a transmission block is penetrated through the arc-shaped groove. The transmission block is also slidably connected in the annular groove. The outer side of the twist drill shaft tube is connected to the lower surface of a main air pipe through a bearing. The lower surface of the main air pipe is also fixedly connected to the transmission seat. The main air pipe is connected with bronchial tubes in a uniformly spaced manner, and suction cups are provided at the outer ends of each bronchial tube. The main air pipe is connected with the upper end of the corresponding guide air pipe in a penetrating manner.

[0011] Preferably, a pressing block and a limiting block are further provided on the base. The pressing block is correspondingly arranged with the front end of the piston rod, and the limiting block is correspondingly arranged with the third protrusion at the upper end of the mounting seat.

[0012] Preferably, an inclined plane is provided in the middle and lower part of the pressing block. The front end of the piston rod is arranged in an isosceles trapezoid structure, and the hypotenuse of the isosceles trapezoid structure at the front end of the piston rod corresponds to the inclined plane in the middle and lower part of the pressing block.

[0013] Preferably, the distance between the first protrusion at the upper end of the mounting seat and the transmission gear is less than the distance between the second protrusion and the transmission gear, and the distance between the second protrusion and the transmission gear at the upper end of the mounting seat is less than the distance between the third protrusion and the transmission gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When the lens testing device is in use, it does not need to be externally connected to a gas source, nor does it need to be equipped with a motor. Therefore, it does not require the cooperation of the motor and the external gas source, so that its stability is better. It not only ensures that it can stably improve the testing efficiency of the lens, but also can reduce energy consumption, thus contributing to energy conservation and emission reduction. In addition, it can timely extract the lens after testing, further improving the testing efficiency. 1. During the process of the air cylinder driving the limiting rod and the mounting plate to move up and down, the shaft rod will be driven to move up and down synchronously. Furthermore, the drive shaft tube can be stably driven to rotate forward and backward through the broken line groove and the guide block, and thus the transmission gear can be stably rotated forward and backward. During this process, the rack plate reciprocates, and thus one of the two rack plates can be extracted without manually extracting the rack plate, which helps to timely extract the lens after testing, thereby improving the testing efficiency. 2. During the downward movement of the rack plate towards the lower part of the mounting plate, the mounting seat will move synchronously with it until the mounting seat contacts the limit block and is thus restricted from further movement. After that, as the rack plate continues to move, the mounting seat will slide relatively in the sliding groove on the upper surface of the rack plate. At the same time, the extrusion seat will extrude the twist drill screw rod, thereby achieving the purpose of driving the twist drill shaft tube to rotate. When the twist drill shaft tube rotates, it will drive the transmission seat to rotate reciprocally through the arc-shaped groove, the transmission block, and the annular groove, that is, it can drive the main air pipe to swing reciprocally. During this process, the suction cup can be swung to the upper surface of the upper and lower fixtures of the test bench, so that it is not necessary for the motor to drive at the appropriate time, and the stability of the suction cup swinging to the surface of the upper and lower fixtures of the test bench can be ensured; 3. After the suction cup swings to the surface of the lower fixture, when the rack plate continues to move, the pressure block will contact the piston rod, which can facilitate the movement of the piston rod into the piston tube, so that the air guide tube can suck the gas in the main air pipe into the piston tube, thus facilitating the suction cup to put down the lens. Subsequently, it swings reversely away from the lower fixture. During the reverse movement of the rack plate, the twist drill shaft tube can be rotated reversely through the first spring. The suction cup will swing to the lower fixture. At this time, as the rack plate continues to move reversely, the pressure block and the piston rod will gradually stop contacting. Through the second spring, the suction cup will suck the tested lens on the lower fixture and then swing away from the lower fixture. When the rack plate continues to move reversely until the mounting seat moves with it, the tested lens will be taken out. During this process, another rack plate will send another group of lenses to be tested onto the lower fixture for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 of the present invention Figure 1 is the enlarged structural schematic diagram of point A in the present invention; Figure 3 is the rear view structural schematic diagram of the present invention; Figure 4 is the sectional view structural schematic diagram of the present invention; Figure 5 of the present invention Figure 4 is the enlarged structural schematic diagram of point B in the present invention; Figure 6 is the connection structural schematic diagram of the rack plate and the transmission gear of the present invention; Figure 7 of the present invention Figure 6 is the enlarged structural schematic diagram of point C in the present invention; Figure 8 is the partial sectional view structural schematic diagram of the rack plate of the present invention; Figure 9 of the present invention Figure 8 is the enlarged structural schematic diagram of point D in the present invention; Figure 10Schematic diagram of the connection structure between the twist drill screw rod and the twist drill shaft tube of the present invention; Figure 11 Schematic diagram of the connection structure between the twist drill shaft tube and the transmission block of the present invention; Figure 12 Schematic diagram of the connection structure between the shaft rod and the transmission shaft of the present invention.

[0016] In the figure: 1, base; 2, top plate; 3, limit tube; 4, cylinder; 5, limit rod; 6, mounting plate; 7, triangular plate; 8, shaft rod; 9, rack plate; 10, pressing block; 11, suction cup; 12, transmission shaft tube; 13, test bench; 14, transmission gear; 15, sliding structure; 16, limit block; 17, sliding groove; 18, mounting seat; 19, piston rod; 20, main air pipe; 21, branch air pipe; 22, guide air pipe; 23, twist drill screw rod; 24, extrusion seat; 25, twist drill shaft tube; 26, limit strip; 27, spring one; 28, mounting groove; 29, piston tube; 30, spring two; 31, transmission seat; 32, arc groove; 33, transmission block; 34, ring groove; 35, fold line groove; 36, guide block. Specific embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1 - 12 , the present invention provides the following technical solutions: Embodiment 1: To solve the problem that in the past, when using a lens testing device, manually pulling out the sliding frame caused the inability to timely remove the tested lens, the following technical solutions are provided. Specifically, a lens testing device includes a base 1 and a top plate 2 fixedly connected to the top. Through holes penetrating the upper and lower sides are symmetrically opened on the top plate 2. The upper end of each through hole on the top plate 2 is fixedly connected with a limit tube 3, and the upper end of the corresponding limit rod 5 extends into each limit tube 3. The upper surface of the top plate 2 is also provided with a cylinder 4, and the telescopic end of the cylinder 4 movably penetrates to the lower side of the top plate 2. The telescopic end of the cylinder 4 is fixedly connected with a mounting plate 6, and the upper surface of the mounting plate 6 is connected to the lower end of the limit rod 5. A test bench 13 is installed between the mounting plate 6 and the base 1. A pushing component is connected to the limit rod 5, and the pushing component includes a transmission shaft tube 12 connected to the base 1 by a damping bearing. The test bench 13 is composed of an upper fixture and a lower fixture. The upper fixture is fixedly connected to the base 1, and the lower fixture is installed on the lower surface of the mounting plate 6. The upper fixture and the lower fixture are correspondingly arranged.

[0019] The pushing component includes a triangular plate 7 fixedly connected to the limiting rod 5. The lower end of the triangular plate 7 is connected to the top end of a shaft rod 8, and the lower end of the shaft rod 8 extends into the interior of the transmission shaft tube 12 movably. A guiding block 36 is provided on the part of the shaft rod 8 inside the transmission shaft tube 12. A folding groove 35 is provided on the inner side of the transmission shaft tube 12. The guiding block 36 is engaged and slidably connected in the folding groove 35. The pushing component further includes a transmission gear 14 key-connected to the outside of the transmission shaft tube 12, and two parallel rack plates 9 are meshed with the transmission gear 14. The lower surface of the rack plate 9 is fixedly connected to the base 1 through a sliding structure 15. According to Figure 1 , Figure 2 , Figure 3 and Figure 12 , when the air cylinder 4 drives the limiting rod 5 and the mounting plate 6 to move in the vertical direction, it will move synchronously in the vertical direction through the triangular plate 7 and the shaft rod 8; During the process of the shaft rod 8 moving in the vertical direction, the guiding block 36 provided on it will move in the folding groove 35. Since the folding groove 35 is provided on the inner side of the transmission shaft tube 12, it will cause the transmission shaft tube 12 to rotate intermittently forward and backward, and then drive the transmission gear 14 to rotate intermittently forward and backward, so that the two rack plates 9 engaged with it can reciprocate. This makes it possible to timely remove the tested lens from the lower fixture when the air cylinder 4 drives the upper fixture provided on the mounting plate 6 to move upward after the lens test is completed, thus helping to improve the test efficiency.

[0020] Embodiment 2: To solve the problem that the previous lens testing device requires the cooperation of a motor and a gas source, which leads to an unstable testing process, the following technical solution is provided. Specifically, a feeding component is installed on the pushing component, and the feeding component includes a suction cup 11 for adsorbing the lens.

[0021] The feeding assembly further includes sliding grooves 17 provided on the upper surface of each rack plate 9, and the lower end of a mounting seat 18 is slidably connected in the sliding groove 17. Three protrusions are provided at the upper end of the mounting seat 18. A twist drill shaft tube 25 is connected between the first protrusion and the second protrusion at the upper end of the mounting seat 18. Both ends of the twist drill shaft tube 25 respectively penetrate through the first protrusion and the second protrusion at the upper end of the mounting seat 18 by bearings. A twist drill screw rod 23 is threadedly penetrated through the twist drill shaft tube 25, and matching twist-shaped threads are provided on the outer side of the twist drill screw rod 23 and the inner side of the twist drill shaft tube 25. A strip-shaped hole with a prismatic cross-section is provided at the end of the twist drill screw rod 23 close to the third protrusion at the upper end of the mounting seat 18, and a prismatic limiting strip 26 with a shape matching it is movably inserted into the strip-shaped hole. The end of the limiting strip 26 outside the twist drill screw rod 23 is fixedly connected to the third protrusion at the upper end of the mounting seat 18. A first spring 27 is provided between the third protrusion at the upper end of the mounting seat 18 and the end of the twist drill screw rod 23 close to it. A pressing seat 24 is further fixedly connected to each rack plate 9, and the pressing seat 24 is arranged corresponding to the twist drill screw rod 23. The distance between the first protrusion at the upper end of the mounting seat 18 and the transmission gear 14 is less than the distance between the second protrusion and the transmission gear 14, and the distance between the second protrusion at the upper end of the mounting seat 18 and the transmission gear 14 is less than the distance between the third protrusion and the transmission gear 14. The feeding assembly further includes mounting grooves 28 provided on the side surface of each rack plate 9, and a piston tube 29 is installed in each mounting groove 28. The rear end of a piston rod 19 is slidably connected in the piston tube 29 without a gap, and the front end of the piston rod 19 slidably penetrates through the piston tube 29 without a gap. A second spring 30 is installed between the rear end of the piston rod 19 and the inner side of the piston tube 29. The area between the rear end and the front end of the piston rod 19 in the piston tube 29 is communicated with the lower end of an air guide tube 22. An inclined annular groove 34 is provided on the outer side of the twist drill shaft tube 25, and a transmission seat 31 is nested on the outer side of the twist drill shaft tube 25. An inclined arc-shaped groove 32 penetrating through its inner and outer sides is provided on the transmission seat 31, and a transmission block 33 is penetrated through the arc-shaped groove 32. The transmission block 33 is also slidably connected in the annular groove 34. The lower surface of a main air tube 20 is connected to the outer side of the twist drill shaft tube 25 by a bearing, and the lower surface of the main air tube 20 is also fixedly connected to the transmission seat 31. Bronchial tubes 21 are connected to the main air tube 20 at equal intervals and penetrate through it, and suction cups 11 are provided at the outer ends of each bronchial tube 21. The upper end of the air guide tube 22 corresponding to it is connected to the main air tube 20 by penetration. A pressing block 10 and a limiting block 16 are further provided on the base 1. The pressing block 10 is arranged corresponding to the front end of the piston rod 19, and the limiting block 16 is arranged corresponding to the third protrusion at the upper end of the mounting seat 18. An inclined plane is provided at the middle and lower part of the pressing block 10. The front end of the piston rod 19 is arranged in an isosceles trapezoid structure, and the hypotenuse of the isosceles trapezoid structure at the front end of the piston rod 19 corresponds to the inclined plane at the middle and lower part of the pressing block 10. According to Figures 4 - 11During the process of the rack plate 9 moving towards the limit block 16, the piston rod 19 will gradually move away from the pressing block 10 which is at a relatively long distance from the limit block 16. As a result, under the action of the second spring 30, the piston rod 19 will reset, causing the gas in the main air pipe 20 to be inhaled into the interior of the piston pipe 29 through the air guide pipe 22. At this time, the suction cup 11 will tightly adsorb the lens. When the rack plate 9 moves until the third protrusion on the upper end of the mounting seat 18 contacts the limit block 16, the mounting seat 18 can be made not to move with the rack plate 9 any more. At this time, if the rack plate 9 continues to move, it will cause the extrusion seat 24 to extrude the twist drill screw rod 23, thereby driving the twist drill shaft tube 25 to rotate, and at the same time compressing the first spring 27. During the rotation of the twist drill shaft tube 25, through the arc groove 32, the transmission block 33 and the annular groove 34, the transmission seat 31 rotates forward and backward reciprocally, that is, the main air pipe 20 connected to it swings, thereby driving the bronchial tube 21 and the suction cup 11 to swing reciprocally. After the suction cup 11 swings to contact the surface of the lower fixture, if the rack plate 9 continues to move, the piston rod 19 will be gradually extruded by the pressing block 10 which is at a relatively short distance from the limit block 16, causing the piston pipe 29 to suck the gas in the main air pipe 20 through the air guide pipe 22, so that the suction cup 11 no longer adsorbs the lens. Subsequently, the rack plate 9 continues to move, causing the suction cup 11 to swing away from the lower fixture. After that, the guide block 36 will move in the vertical part of the broken line groove 35, so that the upper fixture contacts the lower fixture, and then the lens is tested. During the reverse process, the upper fixture first moves away from the lower fixture. When the guide block 36 moves in the inclined arc part of the broken line groove 35, the rack plate 9 will move reversely, so that the suction cup 11 can be first swung to the surface of the lower fixture, then the suction cup 11 adsorbs the lens. After that, the suction cup 11 swings away from the surface of the lower fixture. Subsequently, the mounting seat 18 moves reversely with the rack plate 9. Finally, the suction cup 11 releases the lens, facilitating the staff to take out the tested lens.

[0022] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens testing device, comprising a base (1) and a top plate (2) fixedly connected to the top, characterized in that: The top plate (2) is symmetrically provided with through holes penetrating its upper and lower sides. At the upper end of each through hole on the top plate (2), a limit tube (3) is fixedly connected. The upper end of a corresponding limit rod (5) extends into each limit tube (3). The upper surface of the top plate (2) is further provided with a cylinder (4), and the telescopic end of the cylinder (4) movably penetrates to the lower side of the top plate (2). The telescopic end of the cylinder (4) is fixedly connected with a mounting plate (6), and the upper surface of the mounting plate (6) is connected to the lower end of the limit rod (5). A test bench (13) is installed between the mounting plate (6) and the base (1). A pushing component is connected to the limit rod (5), and the pushing component includes a transmission shaft tube (12) connected to the base (1) through a damping bearing. A feeding component is installed on the pushing component, and the feeding component includes a suction cup (11) for adsorbing the lens.

2. The lens testing device according to claim 1, wherein: The test bench (13) consists of an upper fixture and a lower fixture. The upper fixture is fixedly connected to the base (1), and the lower fixture is installed on the lower surface of the mounting plate (6). The upper fixture and the lower fixture are arranged correspondingly.

3. The lens testing device according to claim 2, wherein: The pushing component includes a triangular plate (7) fixedly connected to the limit rod (5). The lower end of the triangular plate (7) is connected to the top end of a shaft rod (8), and the lower end of the shaft rod (8) movably extends into the interior of the transmission shaft tube (12). A guiding block (36) is arranged on the part of the shaft rod (8) inside the transmission shaft tube (12). A folded line groove (35) is arranged on the inner side of the transmission shaft tube (12), and the guiding block (36) is engaged and slidably connected in the folded line groove (35).

4. The lens testing device according to claim 3, wherein: The pushing component further includes a transmission gear (14) key-connected to the outer side of the transmission shaft tube (12), and two mutually parallel rack plates (9) are meshed and connected to the transmission gear (14). The lower surface of the rack plate (9) is fixedly connected to the base (1) through a sliding structure (15).

5. The lens testing device according to claim 4, wherein: The feeding component further includes sliding grooves (17) provided on the upper surface of each rack plate (9), and the lower end of a mounting seat (18) is slidably connected in the sliding grooves (17). Three protrusions are provided at the upper end of the mounting seat (18). A twist drill shaft tube (25) is connected between the first and second protrusions at the upper end of the mounting seat (18). Both ends of the twist drill shaft tube (25) respectively penetrate through the first and second protrusions at the upper end of the mounting seat (18) by bearings. A twist drill screw rod (23) is threadedly penetrated through the twist drill shaft tube (25), and matching twist-shaped threads are provided on the outer side of the twist drill screw rod (23) and the inner side of the twist drill shaft tube (25). A strip-shaped hole with a prismatic cross-section is provided at the end of the twist drill screw rod (23) close to the third protrusion at the upper end of the mounting seat (18), and a prismatic limiting strip (26) with a shape matching it is movably inserted into the strip-shaped hole. The end of the limiting strip (26) outside the twist drill screw rod (23) is fixedly connected to the third protrusion at the upper end of the mounting seat (18). A first spring (27) is provided between the third protrusion at the upper end of the mounting seat (18) and the end of the twist drill screw rod (23) close to it. An extrusion seat (24) is fixedly connected to each rack plate (9), and the extrusion seat (24) is arranged corresponding to the twist drill screw rod (23).

6. The lens testing device according to claim 5, wherein: The feeding component further includes mounting grooves (28) provided on the side surface of each rack plate (9), and a piston tube (29) is installed in each mounting groove (28). The rear end of a piston rod (19) is slidably connected in the piston tube (29) without a gap, and the front end of the piston rod (19) slidably penetrates through the piston tube (29) without a gap.

7. The lens testing apparatus according to claim 6, wherein: A second spring (30) is installed between the rear end of the piston rod (19) and the inner side of the piston tube (29). The area between the rear end and the front end of the piston rod (19) in the piston tube (29) is communicated with the lower end of a guide air pipe (22). An inclined annular groove (34) is provided on the outer side of the twist drill shaft tube (25), and a transmission seat (31) is nested on the outer side of the twist drill shaft tube (25). An inclined arc-shaped groove (32) penetrating through the inner and outer sides of the transmission seat (31) is provided on the transmission seat (31), and a transmission block (33) is penetrated through the arc-shaped groove (32). The transmission block (33) is also slidably connected in the annular groove (34). The lower surface of a main air pipe (20) is connected to the outer side of the twist drill shaft tube (25) by a bearing. The lower surface of the main air pipe (20) is also fixedly connected to the transmission seat (31). The main air pipe (20) is connected with bronchial tubes (21) in a uniformly spaced manner through holes, and suction cups (11) are provided at the outer ends of each bronchial tube (21). The upper end of the corresponding guide air pipe (22) is penetrated and connected to the main air pipe (20).

8. The lens testing device according to claim 7, wherein: A pressing block (10) and a limiting block (16) are further provided on the base (1). The pressing block (10) is arranged corresponding to the front end of the piston rod (19), and the limiting block (16) is arranged corresponding to the third protrusion at the upper end of the mounting seat (18).

9. The lens testing device according to claim 8, wherein: An inclined plane is provided at the middle and lower part of the pressing block (10), and the front end of the piston rod (19) is provided with an isosceles trapezoid structure, and the hypotenuse of the isosceles trapezoid structure at the front end of the piston rod (19) corresponds to the inclined plane at the middle and lower part of the pressing block (10).

10. A lens testing device according to claim 8, characterized in that: The distance between the first convex block at the upper end of the mounting seat (18) and the transmission gear (14) is less than the distance between the second convex block and the transmission gear (14), and the distance between the second convex block at the upper end of the mounting seat (18) and the transmission gear (14) is less than the distance between the third convex block and the transmission gear (14).

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