Lens testing device

Abstract

The present invention discloses a lens testing device, which belongs to the field of lens testing technology. The device comprises a base and a top plate fixedly connected to the top, wherein the top plate is symmetrically provided with through holes running through the upper and lower sides thereof, the upper end of each through hole on the top plate is fixedly connected to a limit tube, and the upper end of a corresponding limit rod is inserted into each limit tube, and a cylinder is also installed on the upper surface of the top plate, and the telescopic end of the cylinder is movable and passes through the bottom of the top plate, and the telescopic end of the cylinder is fixedly connected to a mounting plate, and the upper surface of the mounting plate is connected to the lower end of the limit rod. When in use, the invention does not require an external air source or a motor, and thus does not require the motor to cooperate with the external air source, thereby making it more stable. This not only ensures that the device can stably improve the efficiency of lens testing, but also reduces energy consumption, thereby contributing to energy conservation and emission reduction. In addition, the tested lens can be promptly extracted, further improving the testing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lens testing, and in particular to a lens testing device. Background Art

[0002] In the field of optical imaging, lenses are core components whose performance directly determines key indicators such as image clarity, color reproduction, and distortion. With the rapid development of industries such as smartphones, security surveillance, drone aerial photography, and medical imaging, the market has increasingly stringent requirements for lens quality and performance. Therefore, efficient and accurate lens testing equipment has become a vital link in ensuring product quality.

[0003] A lens testing device can test lenses to ensure their factory quality. However, existing lens testing devices still have some technical problems when used. Publication No. CN119354501A discloses an optical lens testing device. During use, the sliding frame must be manually pulled out, which cannot ensure that the sliding frame can be pulled out in time after the lens test is completed.

[0004] In addition, before the sliding frame is pulled out, the driving motor and the air source need to be controlled to rotate the air guide column, drive the suction cup to flip, and then adsorb the lens after the suction cup flips. In this process, the air source and the driving motor need to cooperate with each other to ensure that after the suction cup flips and presses on the lens, the driving motor stops running, and the air source extracts the air in the air guide column to make the suction cup adsorb the lens, and then the driving motor is reversed to make the suction cup adsorb the lens and then flip. If the driving motor and the air source malfunction during use, resulting in the wrong start timing of the two, the test process of the lens testing equipment will be chaotic, which is not conducive to stable lens testing.

[0005] Therefore, a lens testing device is needed to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a lens testing device to solve the problem in the prior art that the existing lens testing device cannot ensure the timely withdrawal of the sliding frame during use and cannot ensure the stable conduct of the testing process.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A lens testing device comprises a base and a top plate fixedly connected to the top, the top plate being symmetrically provided with through holes running through the upper and lower sides thereof, the upper end of each through hole on the top plate being fixedly connected to a limit tube, and the upper end of a corresponding limit rod extending into each limit tube, a cylinder being further installed on the upper surface of the top plate, and the telescopic end of the cylinder being movably extended to the bottom of the top plate, the telescopic end of the cylinder being fixedly connected to a mounting plate, and the upper surface of the mounting plate being connected to the lower end of the limit rod, a test bench being installed between the mounting plate and the base, a pushing assembly being connected to the limit rod, and the pushing assembly comprising a transmission shaft tube connected to the base via a damping bearing, a feeding assembly being installed on the pushing assembly, and the feeding assembly comprising a suction cup for adsorbing the lens.

[0009] Preferably, the test bench is composed of an upper jig and a lower jig, the upper jig is fixedly connected to the base, and the lower jig is installed on the lower surface of the mounting plate, and the upper jig and the lower jig are arranged correspondingly.

[0010] Preferably, the pushing assembly includes a triangular plate fixedly connected to the limiting rod, the lower end of the triangular plate is connected to the top end of the shaft rod, and the lower end of the shaft rod is movably extended into the interior of the transmission shaft tube, and a guide block is provided on the part of the shaft rod inside the transmission shaft tube, and a fold line groove is provided on the inner side of the transmission shaft tube, and the guide block is engaged and slidably connected in the fold line groove.

[0011] Preferably, the pushing assembly also includes a transmission gear keyed to the outside of the transmission shaft tube, and two parallel rack plates are meshedly connected to the transmission gear, and the lower surface of the rack plate is fixedly connected to the base through a sliding structure.

[0012] Preferably, the feeding assembly further includes a sliding groove provided on the upper surface of each rack plate, and the lower end of the mounting seat is slidably connected in the sliding groove, the upper end of the mounting seat is provided with three protrusions, and a twist shaft tube is connected between the first protrusion and the second protrusion at the upper end of the mounting seat, and the two ends of the twist shaft tube are respectively passed through the first protrusion and the second protrusion at the upper end of the mounting seat. A twist screw rod is threaded through the twist shaft tube, and the outer side of the twist screw rod and the inner side of the twist shaft tube are provided with mutually matching The screw thread is matched with the third protrusion on the upper end of the mounting seat, and a strip hole with a prismatic cross-section is provided at the end of the screw rod near the third protrusion on the upper end of the mounting seat, and a prismatic limit strip with a shape matching it is movably extended into the strip hole, and the end of the limit strip outside the screw rod is fixedly connected to the third protrusion on the upper end of the mounting seat, and a spring is provided between the third protrusion on the upper end of the mounting seat and the end of the screw rod close to it, and each of the rack plates is also fixedly connected to an extrusion seat, and the extrusion seat is arranged corresponding to the screw rod.

[0013] Preferably, the feeding assembly also includes an installation groove set on the side of each rack plate, and a piston tube is installed in each installation groove, the rear end of the piston rod is seamlessly slidably connected in the piston tube, and the front end of the piston rod seamlessly slides through the piston tube.

[0014] Preferably, a spring 2 is installed between the rear end of the piston rod and the inner side of the piston tube, and the area between the rear end and the front end of the piston rod in the piston tube is connected to the lower end of the air guide tube, and an inclined annular groove is provided on the outer side of the twisted shaft tube, and a transmission seat is nested on the outer side of the twisted shaft tube, and the transmission seat is provided with an inclined arc groove that passes through the inner and outer sides thereof, and a transmission block is provided through the arc groove, and the transmission block is also slidably connected to the annular groove, and the outer side of the twisted shaft tube is connected to the lower surface of the main air pipe through a bearing, and the lower surface of the main air pipe is also fixedly connected to the transmission seat, and the main air pipe is connected with bronchi at equal intervals, and a suction cup is provided at the outer end of each bronchus, and the main air pipe is connected with the upper end of the corresponding air guide pipe.

[0015] Preferably, a pressure block and a limiting block are further provided on the base, the pressure block is provided corresponding to the front end of the piston rod, and the limiting block is provided corresponding to the third protrusion on the upper end of the mounting seat.

[0016] Preferably, the middle and lower part of the pressing block is provided with an oblique surface, the front end of the piston rod is provided with an isosceles trapezoidal structure, and the oblique side of the isosceles trapezoidal structure at the front end of the piston rod corresponds to the oblique surface of the middle and lower part of the pressing block.

[0017] Preferably, the distance between the first protrusion on the upper end of the mounting seat and the transmission gear is smaller than the distance between the second protrusion and the transmission gear, and the distance between the second protrusion on the upper end of the mounting seat and the transmission gear is smaller than the distance between the third protrusion and the transmission gear.

[0018] Compared with the prior art, the present invention has the following beneficial effects: when in use, the lens testing device does not require an external air source or a motor, thereby eliminating the need for a motor to cooperate with an external air source, thereby improving its stability. This not only ensures that the lens testing efficiency can be stably improved, but also reduces energy consumption, thereby contributing to energy conservation and emission reduction. In addition, the tested lens can be promptly extracted, further improving testing efficiency.

[0019] 1. When the cylinder drives the limit rod and the mounting plate to move up and down, it will drive the shaft to move up and down synchronously, and then the transmission shaft tube can be stably driven to rotate forward and reverse through the folding groove and the guide block, which can also make the transmission gear rotate forward and reverse stably. During this process, the rack plate moves back and forth, and one of the two rack plates can be pulled out without manually pulling out the rack plate, which helps to timely pull out the tested lens, thereby improving the testing efficiency;

[0020] 2. When the rack plate moves toward the bottom of the mounting plate, it will cause the mounting seat to move synchronously with it until the mounting seat contacts the limit block, thereby being restricted from further movement. After that, the rack plate continues to move, causing the mounting seat to slide relatively in the sliding groove on the upper surface of the rack plate. At the same time, the extrusion seat will squeeze the twist screw, thereby achieving the purpose of driving the twist shaft tube to rotate. When the twist shaft tube rotates, it will drive the transmission seat to rotate back and forth through the arc groove, transmission block and ring groove, that is, it can drive the main air pipe to swing back and forth. During this process, the suction cup can be swung to the upper surface of the upper and lower fixtures of the test bench, thereby eliminating the need for the motor to drive at the right time, and ensuring the stability of the suction cup swinging to the upper and lower fixture surfaces of the test bench.

[0021] 3. After the suction cup swings to the surface of the lower fixture, the rack plate continues to move, causing the pressure block to contact the piston rod, thereby facilitating the piston rod to move into the piston tube, so that the air guide tube can suck the gas in the main air pipe into the piston tube, thereby facilitating the suction cup to put down the lens, and then it swings in the opposite direction to move away from the lower fixture. During the reverse movement of the rack plate, the twisted shaft tube can be reversed by spring 1, and the suction cup will swing to the lower fixture. At this time, the rack plate continues to move in the opposite direction, so that the pressure block and the piston rod gradually no longer contact, and the suction cup will absorb the tested lens on the lower fixture through spring 2, and then swing away from the lower fixture. When the rack plate continues to move in the opposite direction until the mounting seat moves with it, the tested lens will be pulled out. During this process, the other rack plate will send another group of lenses to be tested to the lower fixture for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of point A;

[0024] Figure 3 This is a rear view structural diagram of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of point B;

[0027] Figure 6 This is a schematic diagram of the connection structure between the rack plate and the transmission gear of the present invention;

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of point C in the middle;

[0029] Figure 8This is a schematic diagram of a partial cross-sectional structure of a rack plate of the present invention;

[0030] Figure 9 For the present invention Figure 8 The enlarged structural diagram of point D in the middle;

[0031] Figure 10 This is a schematic diagram of the connection structure between the twisted screw rod and the twisted shaft tube of the present invention;

[0032] Figure 11 This is a schematic diagram of the connection structure between the twisted shaft tube and the transmission block of the present invention;

[0033] Figure 12 This is a schematic diagram of the connection structure between the shaft rod and the transmission shaft of the present invention.

[0034] In the figure: 1. Base; 2. Top plate; 3. Limiting tube; 4. Cylinder; 5. Limiting 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. Limiting block; 17. Sliding groove; 18. Mounting seat; 19. Piston rod; 20. Main air pipe; 21. Bronchial tube; 22. Air guide tube; 23. Twist wire rod; 24. Extrusion seat; 25. Twist shaft tube; 26. Limiting strip; 27. Spring 1; 28. Mounting groove; 29. ​​Piston tube; 30. Spring 2; 31. Transmission seat; 32. Arc groove; 33. Transmission block; 34. Ring groove; 35. Broken line groove; 36. Guide block. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1-12 , the present invention provides the following technical solutions:

[0037] Embodiment 1: To solve the problem that the lens test device in the past cannot be taken out of the tested lens in time due to the manual extraction of the sliding frame during use, the following technical solution is provided. Specifically, a lens test device includes a base 1 and a top plate 2 fixedly connected to the top. The top plate 2 is symmetrically provided with through holes running through the upper and lower sides thereof. The upper end of each through hole in the top plate 2 is fixedly connected to a limit tube 3, and the upper end of each limit tube 3 extends into the corresponding limit rod 5. The upper surface of the top plate 2 is also installed with a cylinder 4, and the cylinder 4 The telescopic end of the cylinder 4 is movable and extends to the bottom of the top plate 2. The telescopic end of the cylinder 4 is fixedly connected to the mounting plate 6, and the upper surface of the mounting plate 6 is connected to the lower end of the limiting rod 5. A test bench 13 is installed between the mounting plate 6 and the base 1. The limiting rod 5 is connected to a pushing assembly, and the pushing assembly includes a transmission shaft tube 12 connected to the base 1 through a damping bearing. The test bench 13 is composed of an upper jig and a lower jig. The upper jig is fixedly connected to the base 1, and the lower jig is mounted on the lower surface of the mounting plate 6. The upper jig and the lower jig are arranged correspondingly.

[0038] The pushing assembly 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 of the shaft rod 8, and the lower end of the shaft rod 8 is movably extended into the interior of the transmission shaft tube 12, and a guide block 36 is provided on the portion of the shaft rod 8 in the transmission shaft tube 12. A folding groove 35 is provided on the inner side of the transmission shaft tube 12, and the guide block 36 is engaged and slidably connected in the folding groove 35. The pushing assembly also includes a transmission gear 14 connected to the outer side of the transmission shaft tube 12 by a key, and two rack plates 9 parallel to each other are meshed and connected on 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 cylinder 4 drives the limiting rod 5 and the mounting plate 6 to move in the vertical direction, they will move synchronously in the vertical direction through the triangular plate 7 and the shaft rod 8;

[0039] During the movement of the shaft 8 in the vertical direction, the guide block 36 provided thereon will move in the folding groove 35. Since the folding groove 35 is provided on the inner side of the transmission shaft tube 12, the transmission shaft tube 12 will be caused to rotate forward and reverse intermittently, thereby driving the transmission gear 14 to rotate forward and reverse intermittently, so that the two meshing rack plates 9 can move back and forth. This makes it possible for the tested lens to be removed from the lower jig in time when the cylinder 4 drives the upper jig provided on the mounting plate 6 to move upward after the lens test is completed, thereby helping to improve the test efficiency.

[0040] Embodiment 2: In order to solve the problem that the previous lens testing device requires the coordinated use of a motor and an air 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.

[0041] The feeding assembly also includes a sliding groove 17 provided on the upper surface of each rack plate 9, and the lower end of the mounting seat 18 is slidably connected in the sliding groove 17, and the upper end of the mounting seat 18 is provided with three protrusions, and a twisted shaft tube 25 is connected between the first protrusion and the second protrusion at the upper end of the mounting seat 18, and the two ends of the twisted shaft tube 25 respectively pass through the first protrusion and the second protrusion at the upper end of the mounting seat 18. A twisted wire rod 23 is threaded through the twisted shaft tube 25, and the outer side of the twisted wire rod 23 and the inner side of the twisted shaft tube 25 are provided with mutually matching twisted threads. The end of the twisted wire rod 23 near the third protrusion at the upper end of the mounting seat 18 is provided with a strip hole with a prismatic cross section, and a strip hole is movably extended into the strip hole. A prismatic limit strip 26 having a shape matching that of the limit strip 26, the end of the limit strip 26 outside the twist wire rod 23 is fixedly connected to the third protrusion on the upper end of the mounting seat 18, and a spring 27 is provided between the third protrusion on the upper end of the mounting seat 18 and the end of the twist wire rod 23 close to it. An extrusion seat 24 is also fixedly connected to each rack plate 9, and the extrusion seat 24 is arranged corresponding to the twist wire rod 23. The distance between the first protrusion on the upper end of the mounting seat 18 and the transmission gear 14 is smaller than the distance between the second protrusion and the transmission gear 14, and the distance between the second protrusion on the upper end of the mounting seat 18 and the transmission gear 14 is smaller than the distance between the third protrusion and the transmission gear 14. The feeding assembly also includes a mounting groove provided on each side of the rack plate 9. 28, and each mounting groove 28 is installed with a piston tube 29, the piston tube 29 is seamlessly slidably connected with the rear end of the piston rod 19, and the front end of the piston rod 19 is seamlessly slidably penetrated through the piston tube 29, a spring 2 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 connected with the lower end of the air guide tube 22, the outer side of the twist shaft tube 25 is provided with an inclined annular groove 34, and the outer side of the twist shaft tube 25 is nested with a transmission seat 31, the transmission seat 31 is provided with an inclined arc groove 32 running through the inner and outer sides thereof, and a transmission block 33 is penetrated on the arc groove 32, and the transmission block 33 is also slidably connected in the annular groove 34, the twist shaft tube 25 The outer side is connected to the lower surface of the main air pipe 20 through a bearing, and the lower surface of the main air pipe 20 is also fixedly connected to the transmission seat 31. The main air pipe 20 is evenly spaced and connected with the bronchial tube 21, and the suction cup 11 is provided at the outer end of each bronchial tube 21. The main air pipe 20 is connected with the upper end of the corresponding air guide tube 22. A pressing block 10 and a limit block 16 are also provided on the base 1. The pressing block 10 is corresponding to the front end of the piston rod 19, and the limit block 16 is corresponding to the third protrusion on the upper end of the mounting seat 18. The middle and lower part of the pressing block 10 is provided with a beveled surface, and the front end of the piston rod 19 is provided with an isosceles trapezoidal structure, and the hypotenuse of the isosceles trapezoidal structure at the front end of the piston rod 19 corresponds to the beveled surface of the middle and lower part of the pressing block 10. Figure 4-11As the rack plate 9 moves toward the limit block 16, the piston rod 19 gradually moves away from the pressure block 10, which is farther away from the limit block 16. As a result, the piston rod 19 is reset under the action of the second spring 30, so that the gas in the main air pipe 20 is sucked into the interior of the piston tube 29 through the air guide pipe 22. At this time, the suction cup 11 will tightly adsorb the lens.

[0042] When the rack plate 9 moves to the point where the third protrusion on the upper end of the mounting seat 18 contacts the limit block 16, the mounting seat 18 no longer moves with the rack plate 9. At this time, the rack plate 9 continues to move, causing the extrusion seat 24 to squeeze the twisted screw rod 23, thereby driving the twisted shaft tube 25 to rotate and compressing the spring 1 27.

[0043] During the rotation of the twisted shaft tube 25, the transmission seat 31 rotates back and forth through the arc groove 32, the transmission block 33 and the annular groove 34, that is, the main air pipe 20 connected to it swings, and then drives the bronchial tube 21 and the suction cup 11 to swing back and forth;

[0044] After the suction cup 11 swings to contact the surface of the lower fixture, the rack plate 9 continues to move, causing the piston rod 19 to be gradually squeezed by the pressure block 10 closer to the limit block 16, thereby causing the piston tube 29 to absorb the gas in the main air pipe 20 through the air guide pipe 22, so that the suction cup 11 can no longer adhere to the lens;

[0045] Then the rack plate 9 continues to move, causing the suction cup 11 to swing away from the lower jig. After that, the guide block 36 moves in the vertical portion of the folding groove 35, so that the upper jig contacts the lower jig, and the lens is tested.

[0046] During the reverse process, the upper jig first moves away from the lower jig. When the guide block 36 moves in the inclined arc part in the folding groove 35, the rack plate 9 will move in the reverse direction, so that the suction cup 11 can be swung to the surface of the lower jig first, and then the suction cup 11 adsorbs the lens. After that, the suction cup 11 swings away from the surface of the lower jig, and then the mounting seat 18 moves in the reverse direction with the rack plate 9, and finally the suction cup 11 releases the lens, so that the staff can take out the tested lens.

[0047] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 running through the upper and lower sides thereof. The upper end of each through hole on the top plate (2) is fixedly connected to a limiting tube (3), and the upper end of a corresponding limiting rod (5) is inserted into each limiting tube (3). A cylinder (4) is also installed on the upper surface of the top plate (2), and the telescopic end of the cylinder (4) is movable and passes through the bottom of the top plate (2). The telescopic end of the cylinder (4) is fixedly connected to a mounting plate (6), and the upper surface of the mounting plate (6) is connected to the lower end of the limiting rod (5). A test bench (13) is installed between the mounting plate (6) and the base (1). A pushing assembly is connected to the limiting rod (5), and the pushing assembly includes a transmission shaft tube (12) connected to the base (1) through a damping bearing. The pushing assembly 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 the shaft rod (8), and the lower end of the shaft rod (8) is movable and extends into the interior of the transmission shaft tube (12), a guide block (36) is provided on the portion of the shaft rod (8) in the transmission shaft tube (12), a folding groove (35) is provided on the inner side of the transmission shaft tube (12), and the guide block (36) is engaged and slidably connected in the folding groove (35), and the pushing assembly also includes a transmission gear (14) connected to the outer side of the transmission shaft tube (12) by a key, and two parallel rack plates (9) are meshed and connected on the transmission gear (14), and the lower surface of the rack plate (9) is fixedly connected to the base ( 1), a feeding assembly is installed on the pushing assembly, and the feeding assembly includes a suction cup (11) for adsorbing the lens, the feeding assembly also includes a sliding groove (17) provided on the upper surface of each rack plate (9), and the lower end of the mounting seat (18) is slidably connected in the sliding groove (17), the upper end of the mounting seat (18) is provided with three protrusions, and a twisted shaft tube (25) is connected between the first protrusion and the second protrusion at the upper end of the mounting seat (18), and the two ends of the twisted shaft tube (25) are respectively passed through the first protrusion and the second protrusion at the upper end of the mounting seat (18), and the thread on the twisted shaft tube (25) passes through a twisted screw rod (23), and the outer side of the twisted screw rod (23) and the inner side of the twisted shaft tube (25) are provided with corresponding screws. The twisted threads match each other, and the twisted wire rod (23) is provided with a strip hole with a prismatic cross section at the end of the third protrusion on the upper end of the mounting seat (18), and a prismatic limiting strip (26) with a shape matching the strip hole is movably extended into the strip hole, and the end of the limiting strip (26) outside the twisted wire rod (23) is fixedly connected to the third protrusion on the upper end of the mounting seat (18), and a spring (27) is provided between the third protrusion on the upper end of the mounting seat (18) and the end of the twisted wire rod (23) close to it. Each of the rack plates (9) is also fixedly connected to an extrusion seat (24), and the extrusion seat (24) is corresponding to the twisted wire rod (23). The feeding assembly also includes a mounting groove (28) provided on the side of each rack plate (9).A piston tube (29) is installed in each mounting groove (28), and the rear end of the piston rod (19) is seamlessly slidably connected in the piston tube (29), and the front end of the piston rod (19) is seamlessly slidably penetrated through the piston tube (29), and a spring 2 (30) is installed between the rear end of the piston rod (19) and the inner side of the piston tube (29), and the area between the rear end and the front end of the piston rod (19) in the piston tube (29) is connected with the lower end of the air guide tube (22), and the outer side of the twisted shaft tube (25) is provided with an inclined annular groove (34), and the outer side of the twisted shaft tube (25) is nested with a transmission seat (31), and the transmission seat (31) is provided with an arc groove (32) that is inclined and passes through the inner and outer sides thereof, and a transmission block (33) is penetrated on the arc groove (32), and the transmission block (33) is also slidably connected in the annular groove (34), and the twisted shaft tube (25) is provided with an inclined annular groove (34). ) is connected to the lower surface of the main air pipe (20) through a bearing, and 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 to the bronchial tubes (21) at equal intervals, and a suction cup (11) is provided at the outer end of each bronchial tube (21). The main air pipe (20) is connected to the upper end of the corresponding air guide tube (22). The base (1) is also provided with a pressing block (10) and a limiting block (16). The pressing block (10) is provided corresponding to the front end of the piston rod (19), and the limiting block (16) is provided corresponding to the third protrusion at the upper end of the mounting seat (18). The middle and lower part of the pressing block (10) is provided with an oblique section. The front end of the piston rod (19) is provided as an isosceles trapezoidal structure, and the oblique side of the isosceles trapezoidal structure at the front end of the piston rod (19) corresponds to the oblique section of the middle and lower part of the pressing block (10).

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

3. The lens testing device according to claim 2, wherein: The distance between the first protrusion on the upper end of the mounting seat (18) and the transmission gear (14) is smaller than the distance between the second protrusion and the transmission gear (14), and the distance between the second protrusion on the upper end of the mounting seat (18) and the transmission gear (14) is smaller than the distance between the third protrusion and the transmission gear (14).

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