CN220153547U

CN220153547U - Optical lens piece testing platform

Info

Publication number: CN220153547U
Application number: CN202321234668.3U
Authority: CN
Inventors: 汪德峰; 郑顺亮; 王云; 徐海华
Original assignee: Nanjing Jiabo Optical Instrument Co ltd
Current assignee: Nanjing Jiabo Optical Instrument Co ltd
Priority date: 2023-05-20
Filing date: 2023-05-20
Publication date: 2023-12-08
Anticipated expiration: 2033-05-20

Abstract

The utility model relates to an optical lens detection platform, which is applied to the field of optical lens detection. The optical lens detection device comprises a detection table and a detection assembly, wherein the detection assembly is fixed on the detection table, a turntable for placing an optical lens is arranged on the detection table, the turntable is driven to rotate by a motor fixed on the detection table, an adsorption hole is formed in the turntable and is communicated with a vacuumizing machine, and the optical lens is placed on the turntable and is fixed on the turntable by adsorption holes; the detection group comprises an abutting part and a detection part, one end of the abutting part abuts against the outer edge of the optical lens, the other end of the abutting part is provided with a sliding block, and the sliding block is sleeved on the detection part and slides on the detection part. The utility model has the effect of more accurate detection result.

Description

Optical lens piece testing platform

Technical Field

The utility model relates to the field of optical lens detection, in particular to an optical lens detection platform.

Background

The finished optical lens is generally a standard master. Various properties of the optical lens are required to be detected before the optical lens leaves the factory, wherein the roundness detection of the appearance of the optical lens is performed. The roundness tester is generally used for detecting the roundness of the appearance of the optical lens

A roundness tester in the related art, for example, a name issued by the national intellectual property agency 2020.11.17, is a roundness tester for an optical lens, in which a lens is fixed by a suction cup under negative pressure, and a sensor for detecting roundness is driven by a motor to detour the lens by one turn to test a change in a distance from the sensor to an edge of the lens to obtain the roundness of the lens.

With respect to the related art in the above, the inventors found that there are the following drawbacks: the optical lens has higher transmittance, so that the optical lens can not be in direct contact with the periphery of the optical lens after the sensor is used for bypassing the optical lens for a circle, most of signals are easy to attenuate through the lens, so that feedback signals received by the sensor are poor, and the accuracy of detection results is finally affected.

Disclosure of Invention

In order to solve the problem of inaccurate roundness detection results of an optical lens, the utility model provides an optical lens detection platform.

The utility model provides an optical lens detection platform, which adopts the following technical scheme:

the optical lens detection platform comprises a detection table and a detection assembly, wherein the detection assembly is fixed on the detection table, a rotary table for placing an optical lens is arranged on the detection table, the rotary table is driven to rotate by a motor fixed on the detection table, an adsorption hole is formed in the rotary table and communicated with a vacuumizing machine, and the optical lens is placed on the rotary table and is adsorbed and fixed on the rotary table through the adsorption hole;

the detection group comprises an abutting part and a detection part, one end of the abutting part abuts against the outer edge of the optical lens, the other end of the abutting part is provided with a sliding block, and the sliding block is sleeved on the detection part to slide.

By adopting the technical scheme, the optical lens is fixed on the turntable, and the turntable is driven by the motor to rotate, so that the optical lens rotates, at the moment, the abutting part abuts against the outer edge of the optical lens and rotates along with the optical lens, and the abutting part can keep a circle around the optical lens in a state of abutting against the outer edge of the optical lens. Because the optical lens is always abutted against the abutting part, if the outer edge of the optical lens is not smooth enough, the abutting part is pushed to move in the horizontal direction, and finally the sliding block slides on the detection part, so that the signal of the detection part changes, and the roundness detection of the outer edge of the optical lens can be completed. And because the abutting part is always abutted against the outer edge of the optical lens in the whole detection process, the detection result is more accurate.

Optionally, the accommodating groove is formed in the detection table, the motor is fixed at the bottom of the accommodating groove, the rotary disc is fixed on the rotary shaft of the motor and is flush with the notch of the accommodating groove, the side wall of the accommodating groove is provided with the air suction hole, the vacuum extractor is communicated with the air suction hole, and the adsorption hole is communicated with the accommodating groove.

Through adopting above-mentioned technical scheme, the evacuation machine is through the air in the extraction storage tank for form the atmospheric pressure difference between storage tank and the external environment, if the optical lens is placed on the absorption hole this moment, the outside high atmospheric pressure of absorption hole can tightly suppress the optical lens and fix on the carousel, and even support the portion to support to paste on the outer fringe of optical lens and also be insufficient for promoting the optical lens skew, thereby ensured the accuracy of testing result.

Optionally, the notch department of holding groove is equipped with a pair of sealing washer, a pair of be equipped with the clearance between the sealing washer, the carousel inserts in the clearance, the sealing washer with the terminal surface butt of carousel.

Through adopting above-mentioned technical scheme, set up a pair of sealing washer in the clearance department on the lateral wall of carousel and holding tank for the clearance of this department can be sealed, makes the adsorption affinity of absorption hole department bigger at the evacuation machine during operation, thereby makes the optical lens piece can be inseparabler fix on the carousel, even support the portion of pasting and support and paste also be insufficient for promoting the optical lens piece skew on the outer fringe of optical lens piece, thereby ensured the accuracy of testing result.

Optionally, the abutting part comprises an abutting wheel and a transmission frame, the abutting wheel is rotationally connected to one end of the transmission frame, the outer edge of the abutting wheel abuts against the outer edge of the optical lens, the optical lens rotates to drive the outer edge of the abutting wheel to rotate, the other end of the transmission frame is fixedly connected with the sliding block, and the abutting wheel moves to drive the sliding block to move through the transmission frame.

By adopting the technical scheme, if the outer edge of the optical lens is not smooth enough, the outer edge of the optical lens can push the abutting wheel, so that the abutting wheel moves to finally drive the sliding block to move on the detection part, the signal of the detection part changes, and the roundness of the optical lens can be detected. The abutting part is always abutted against the outer edge of the optical lens in the whole detection process, and the detection result is more accurate.

Optionally, the detection portion includes the slip axle of fixing on the inspection table, the slip axle is followed the length direction of inspection table is laid, the epaxial cladding displacement sensor that slides, the slider cover is established the epaxial and the epaxial reciprocating motion that slides.

By adopting the technical scheme, the sliding block triggers the displacement sensors at different positions on the sliding shaft when sliding on the sliding shaft, and the roundness of the optical lens can be detected by utilizing the change of the signals of the displacement sensors at different positions. The abutting part is always abutted against the outer edge of the optical lens in the whole detection process, and the detection result is more accurate.

Optionally, the detection bench is equipped with the groove of sliding, the axle of sliding is fixed on the lateral wall in the groove of sliding, the epaxial cover of sliding establishes the pressure spring, the one end of pressure spring is fixed on the slider deviates from on the lateral wall of carousel one side, the other end of pressure spring is fixed on the lateral wall in the groove of sliding.

Through adopting above-mentioned technical scheme, the pressure through the pressure spring promotes to support the wheel and rotates the in-process and contact with the outer fringe of optical lens throughout at optical lens to support the wheel and can support the outer fringe of pasting at optical lens throughout at optical lens outside circumference detection process, ensured true circle degree testing result's accuracy.

Optionally, the centre of a circle department of carousel is equipped with centering groove, be equipped with the laser lamp in the centering groove, the lamp holder of laser lamp with the terminal surface parallel and level of carousel.

Through adopting above-mentioned technical scheme, laser lamp sends laser in the center department of carousel to the operator of being convenient for aligns the center department of optical lens piece with the center department of carousel, makes the testing result more accurate.

Optionally, the adsorption holes are uniformly distributed on the turntable in a circumferential shape with the centering groove as a center.

Through adopting above-mentioned technical scheme, the absorption hole equipartition is favorable to being provided with even adsorption affinity at the surface of optical lens for optical lens is more stable to be fixed carries out the roundness test on the carousel, ensures the accuracy of test result.

In summary, the present utility model includes at least one of the following beneficial effects:

1. the optical lens is fixed on the turntable, and the turntable is driven by the motor to rotate, so that the optical lens rotates, at the moment, the abutting part abuts against the outer edge of the optical lens and rotates along with the optical lens, and the abutting part can keep a circle around the optical lens in a state of abutting against the outer edge of the optical lens. Because the optical lens is always abutted against the abutting part, if the outer edge of the optical lens is not smooth enough, the abutting part is pushed to move in the horizontal direction, and finally the sliding block slides on the detection part, so that the signal of the detection part changes, and the roundness detection of the outer edge of the optical lens can be completed. In addition, the abutting part is always abutted against the outer edge of the optical lens in the whole detection process, so that the detection result is more accurate;

2. in the detection process, the abutting wheel always abuts against the outer edge of the optical lens, the abutting wheel is pushed by the outer edge of the optical lens, the sliding block is driven to slide on the sliding shaft by the movement of the abutting wheel, the displacement sensors at different positions on the sliding shaft are triggered, and the roundness of the optical lens can be detected by utilizing the change of the signals of the displacement sensors at different positions. The abutting part is always abutted against the outer edge of the optical lens in the whole detection process, and the detection result is more accurate.

Drawings

FIG. 1 is a schematic diagram of an optical lens inspection platform according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an optical lens inspection platform according to an embodiment of the present utility model;

in the figure: 1. a detection table; 11. a receiving groove; 12. a slip groove; 13. an air suction hole; 14. a seal ring; 2. a detection assembly; 21. an abutting part; 211. a butting wheel; 212. a transmission frame; 22. a detection unit; 221. a slip shaft; 222. a displacement sensor; 23. a slide block; 24. a pressure spring; 3. a turntable; 31. a motor; 32. adsorption holes; 33. a vacuum extractor; 34. a centering groove; 35. a laser lamp; 4. an optical lens.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses an optical lens detection platform. Referring to fig. 1 and 2, an optical lens inspection platform includes an inspection station 1 and an inspection assembly 2. The detection assembly 2 is fixed on the detection table 1, the detection table 1 is rotationally connected with the rotary table 3, and the rotary table 3 is used for placing the optical lens 4. The detection table 1 is provided with a containing groove 11, and the containing groove 11 is used for containing the turntable 3. The motor 31 is fixed at the bottom of the accommodating groove 11, and the rotating shaft of the motor 31 and the turntable 3 are fixed at the center of the turntable 3 to drive the turntable 3 to rotate in the accommodating groove 11. The turntable 3 is provided with a plurality of adsorption holes 32, the adsorption holes 32 are communicated with the accommodating groove 11, and the side wall of the accommodating groove 11 is provided with an air suction hole 13 for being connected with a vacuum extractor 33. When the vacuum pump 33 works, negative pressure is formed in the accommodating groove 11, so that the pressure in the accommodating groove 11 is lower than the external pressure, and the external air is supplemented into the accommodating groove 11 from the adsorption hole 32, so that the optical lens 4 placed on the turntable 3 can be pressed and fixed on the turntable 3.

Referring to fig. 1 and 2, a centering groove 34 is formed on the end surface of the turntable 3 for placing the optical lens 4, the centering groove 34 coincides with the center of the turntable 3, and a laser lamp 35 is installed in the centering groove 34, and the laser emitted by the laser lamp 35 is always located at the center of the turntable 3 due to the coincidence of the centering groove 34 and the center of the turntable 3. The positioning function can be realized when the optical lens 4 is placed, and the circle center of the optical lens 4 is only required to be overlapped with the light of the laser lamp 35 in the placing process. The adsorption holes 32 are uniformly distributed on the turntable 3 with the centering groove 34 as a center to provide uniform suction force for the optical lens 4 during detection, so that the optical lens 4 can be more stably fixed on the turntable 3 during detection. Meanwhile, the lamp cap of the laser lamp 35 is at least required to be flush with the end face of the turntable 3 or lower than the end face of the turntable 3, and the surface of the optical lens 4 is not scratched during detection. More preferably, a rubber layer may be coated on the surface of the turntable 3, and only the suction hole 32 and the centering hole need be exposed. During detection, the optical lens 4 is in contact with the rubber layer, so that friction force is increased, the excrement surface of the optical lens 4 can be protected, and the possibility of scratching the surface of the optical lens 4 in the detection process is reduced.

Referring to fig. 1 and 2, a gap between the turntable 3 and the inner side wall of the accommodating groove may be sealed by the sealing rings 14, and specifically, a pair of sealing rings 14 may be fixed on the side wall of the accommodating groove, with a gap between the pair of sealing rings 14, and the turntable 3 is engaged in the gap. So that the sealing rings 14 respectively abut against the end faces of the turntable 3. When the vacuum extractor 33 works, air cannot flow from the gap to the accommodating groove 11 due to the blocking of the sealing ring 14, so that the negative pressure at the adsorption hole 32 is further increased, the adsorption force at the adsorption hole 32 is larger, and the fixation between the optical lens 4 and the turntable 3 is firmer.

Referring to fig. 1 and 2, a detecting assembly 2 is placed on a detecting table 1 on one side of a turntable 3. The detection assembly 2 comprises an abutting part 21 and a detection part 22, wherein the abutting part 21 and the detection part 22 are connected to the detection table 1 through a sliding block 23, and a sliding groove 12 can be formed in the detection table for melting the detection part 22. The detection portion 22 includes a sliding shaft 221, the slider 23 is sleeved on the sliding shaft 221 and can slide on the sliding shaft 221, the surface of the sliding shaft 221 is coated with the displacement sensor 222, and when the slider 23 slides to different positions of the sliding shaft 221, the displacement sensor 222 at the different positions can be triggered, so that the signal of the displacement sensor 222 changes. The abutting part 21 comprises an abutting wheel 211 and a transmission frame 212, one end of the transmission frame 212 is used for rotationally connecting the abutting wheel 211, the outer edge of the abutting wheel 211 abuts against the outer edge of the optical lens 4, and the optical lens 4 is in a rotating state during detection, so that the abutting wheel 211 can be driven to synchronously rotate. And the other end of the transmission frame 212 is fixed to the slider 23. During detection, the optical lens 4 rotates, and different positions on the outer edge of the optical lens 4 are sequentially contacted with the abutting wheel 211. Because the optical lens 4 is fixed on the turntable 3, when the outer edge of the optical lens 4 is not smooth enough, the outer edge pushes the abutting wheel 211, and finally drives the sliding block 23 to move on the sliding shaft 221, so as to trigger the signal changes of the displacement sensors 222 at different positions on the sliding shaft 221, and the true circle degree of the optical lens 4 can be calculated by recording the signal changes of the displacement sensors 222, so that the true circle degree detection of the optical lens 4 is completed.

Referring to fig. 1 and 2, a compression spring 24 is sleeved on the sliding shaft 221, one end of the compression spring 24 is fixed on the side wall of the sliding groove 12, the other end of the compression spring 24 is fixed on the side wall of the sliding block 23, which is away from the turntable 3, and the sliding block 23 is pushed by the pressure of the compression spring 24, so that the abutting wheel 211 can always contact with the outer edge of the optical lens 4 in the detection process, and the accuracy of the roundness detection result is ensured.

When the roundness of the optical lens 4 is detected, the laser lamp 35 is started firstly, the center of the optical lens 4 and the light beam of the laser lamp 35 are superposed on the turntable 3, then the vacuumizing machine 33 is started, so that a negative pressure state is formed in the accommodating groove 11, the optical lens 4 is pressed on the turntable 3 by utilizing the air pressure difference, at the moment, the sliding block 23 moves to one side of the optical lens 4 under the pushing of the pressure spring 24, and finally the abutting wheel 211 is driven to abut against the outer edge of the optical lens 4. The pushing force of the compression spring 24 is smaller than the adsorption force provided by the negative pressure, so that the abutting wheel 211 can abut against the outer edge of the optical lens 4 and does not push the optical lens 4 to move. Then, the motor 31 is started to drive the optical lens 4 to rotate, so that the outer edge of the optical lens 4 is sequentially contacted with the abutting wheel 211, if the optical lens 4 is not smooth enough, the outer edge of the optical lens 4 can push the abutting wheel 211, the optical lens is driven by the transmission frame 212 to finally drive the sliding block 23 to move along the sliding shaft 221, the displacement sensors 222 coated on different positions of the sliding shaft 221 are triggered, and the roundness value of the optical lens 4 can be calculated by reading the signal change of the sensors. The abutting wheel 211 is always in contact with the outer edge of the optical lens 4 in the detection process, and the detection result is more accurate and reliable.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides an optical lens piece testing platform, includes detection platform (1) and detection subassembly (2), detection subassembly (2) are fixed on detection platform (1), its characterized in that: the detection table (1) is provided with a rotary table (3) for placing an optical lens (4), the rotary table (3) is driven to rotate by a motor (31) fixed on the detection table (1), the rotary table (3) is provided with an adsorption hole (32), the adsorption hole (32) is communicated with a vacuumizing machine (33), the optical lens (4) is placed on the rotary table (3), and the optical lens (4) is adsorbed and fixed on the rotary table (3) through the adsorption hole (32);

the detection group comprises an abutting part (21) and a detection part (22), one end of the abutting part (21) abuts against the outer edge of the optical lens (4), the other end of the abutting part (21) is provided with a sliding block (23), and the sliding block (23) is sleeved on the detection part (22) and slides on the detection part (22).

2. The optical lens inspection platform according to claim 1, wherein: the detection table (1) is provided with a containing groove (11), the motor (31) is fixed at the bottom of the containing groove (11), the rotary disc (3) is fixed on the rotating shaft of the motor (31) and is flush with the notch of the containing groove (11), the side wall of the containing groove (11) is provided with an air suction hole (13), the vacuum extractor (33) is communicated with the air suction hole (13), and the adsorption hole (32) is communicated with the containing groove (11).

3. An optical lens inspection stage according to claim 2, wherein: the groove mouth of the accommodating groove (11) is provided with a pair of sealing rings (14), a gap is arranged between the pair of sealing rings (14), the rotary table (3) is inserted into the gap, and the sealing rings (14) are abutted to the end face of the rotary table (3).

4. The optical lens inspection platform according to claim 1, wherein: the abutting part (21) comprises an abutting wheel (211) and a transmission frame (212), the abutting wheel (211) is rotationally connected to one end of the transmission frame (212), the outer edge of the abutting wheel (211) abuts against the outer edge of the optical lens (4), the optical lens (4) rotates to drive the outer edge of the abutting wheel (211) to rotate, the other end of the transmission frame (212) is fixedly connected with the sliding block (23), and the abutting wheel (211) moves to drive the sliding block (23) to move through the transmission frame (212).

5. The optical lens inspection platform according to claim 4, wherein: the detection part (22) comprises a sliding shaft (221) fixed on the detection table (1), the sliding shaft (221) is arranged along the length direction of the detection table (1), the sliding shaft (221) is coated with a displacement sensor (222), and the sliding block (23) is sleeved on the sliding shaft (221) and moves back and forth on the sliding shaft (221).

6. The optical lens inspection stage according to claim 5, wherein: the detection table (1) is provided with a sliding groove (12), a sliding shaft (221) is fixed on the side wall of the sliding groove (12), a pressure spring (24) is sleeved on the sliding shaft (221), one end of the pressure spring (24) is fixed on the side wall of the sliding block (23) on one side deviating from the turntable (3), and the other end of the pressure spring (24) is fixed on the side wall of the sliding groove (12).

7. The optical lens inspection platform according to claim 1, wherein: the center of the turntable (3) is provided with a centering groove (34), a laser lamp (35) is arranged in the centering groove (34), and a lamp cap of the laser lamp (35) is flush with the end face of the turntable (3).

8. The optical lens inspection stage according to claim 7, wherein: the adsorption holes (32) are uniformly distributed on the turntable (3) in a circumference shape by taking the centering groove (34) as a center.