An apparatus for automatic detection of lens sub-s

Abstract

The utility model discloses a kind of equipment for lens sub-s automatic detection, its technical solutions main point is including machine table, be equipped with feeding device on machine table, the detection device for detecting lens sub-s, discharging device, feeding device includes the first suction nozzle for detecting the interferometer by suction lens, drives the first suction nozzle and moves first linear motor along X axis direction, drives the second linear motor along Y axis direction and moves the first suction nozzle, the first lifting drive mechanism of driving the first suction nozzle lifting, discharging device includes the second suction nozzle for separating storage by suctioning away lens after detection, drives the third linear motor along X axis direction and moves the second suction nozzle, drives the fourth linear motor along Y axis direction and moves the second suction nozzle, the second lifting drive mechanism of driving the second suction nozzle lifting.The utility model is through the multilayer tray design of feeding box and receiving material box, realize continuous automatic production, greatly promote efficiency improvement.

Description

Technical Field

[0001] This utility model relates to the field of lens testing equipment technology, and in particular to a device for automatic lens sizing testing. Background Technology

[0002] Asperger's angle (AS) refers to irregular variations in the aperture of a lens surface in localized areas, manifesting as distortion or deformation of interference fringes. For example, when there are localized depressions or protrusions on the lens surface, it leads to uneven spacing of the interference fringes; this deviation is called AS. Excessive AS can cause light scattering, aberrations such as coma and astigmatism, and reduce the imaging quality of the optical system or the laser transmission efficiency.

[0003] Current technology relies mainly on manual loading and unloading when testing lens saturation, resulting in low testing efficiency and a high error rate.

[0004] The information disclosed in the background section is only for enhancing the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for automatic detection of lens asymmetry.

[0006] This utility model is achieved through the following technical solution.

[0007] An automatic lens assimilation detection device includes a machine table 1, characterized in that: the machine table 1 is provided with a feeding device, a detection device for detecting lens assimilation, and a discharging device for sorting qualified and unqualified products. The detection device is located between the feeding device and the discharging device, and an opening is provided in the middle of one side of the machine table 1. The detection device includes an interferometer 2 located at the opening. The feeding device includes a first suction nozzle 6 for sucking the lens to the interferometer 2 for detection, a first linear motor 4 for driving the first suction nozzle 6 to move along the X-axis, a second linear motor 5 for driving the first suction nozzle 6 to move along the Y-axis, and a first lifting drive mechanism 7 for driving the first suction nozzle 6 to rise and fall. The discharging device includes a second suction nozzle 8 for sucking away the detected lenses and storing them separately, a third linear motor 9 for driving the second suction nozzle 8 to move along the X-axis, a fourth linear motor 10 for driving the second suction nozzle 8 to move along the Y-axis, and a second lifting drive mechanism 12 for driving the second suction nozzle 8 to rise and fall.

[0008] The lens automatic inspection equipment described above is characterized in that: the first linear motor 4 is mounted on the machine base 1, a first mounting plate 13 driven by the first linear motor 4 to move along the X-axis direction is mounted on the first linear motor 4, the second linear motor 5 is mounted on the first mounting plate 13, a second mounting plate 14 driven by the second linear motor 5 to move along the Y-axis direction is mounted on the second linear motor 5, a first lifting drive mechanism 7 is mounted on the second mounting plate 14, a lifting mechanism 40 is provided at the bottom of the interferometer 2, and an electric gripper 44 is also provided next to the first suction nozzle 6.

[0009] The lens automatic inspection device described above is characterized in that: the first lifting drive mechanism 7 includes a first drive motor 15 mounted on the second mounting plate 14, a first transmission belt 16 driven by the first drive motor 15, a first lifting plate 17 fixed on the first transmission belt 16, and the first suction nozzle 6 fixed on the first lifting plate 17.

[0010] The lens automatic inspection equipment described above is characterized in that: the feeding device further includes a feeding box 18 and a first slide rail 19 provided on the machine base 1. The feeding box 18 contains multiple layers of first trays 20, and the first trays 20 contain multiple lenses to be inspected. A first cylinder 21 and a first drag rod 22 driven to rise and fall by the first cylinder 21 are provided on the first mounting plate 13. A first insertion hole 23 is provided at the end of the first tray 20 for the first drag rod 22 to insert and drag the first tray 20 along the first slide rail 19 to enter and exit the feeding box 18. A first screw drive mechanism 24 for driving the feeding box 18 to rise and fall is provided below the feeding box 18.

[0011] The lens automatic inspection equipment described above is characterized in that: a first positioning groove 25 is provided on the first material tray 20, and a first positioning block 26 positions the first material tray 20 after the first slide rail 19 is in place.

[0012] The lens automatic inspection equipment described above is characterized in that: a first photoelectric sensor 27 for detecting the position of the first lifting plate 17 is provided on the second mounting plate 14, and a third photoelectric sensor 11 for detecting whether the first material tray 20 in the loading box 18 has been raised or lowered into position is also provided on the machine base 1.

[0013] The lens ys automatic inspection equipment described above is characterized in that: the third linear motor 9 is mounted on the machine base 1, and a third mounting plate 28 driven by the third linear motor 9 to move along the X-axis direction is mounted on the third linear motor 9; the fourth linear motor 10 is mounted on the third mounting plate 28, and a fourth mounting plate 29 driven by the fourth linear motor 10 to move along the Y-axis direction is mounted on the fourth linear motor 10; and the second lifting drive mechanism 12 is mounted on the fourth mounting plate 29.

[0014] The lens s-as described above automatic inspection equipment is characterized in that: the second lifting drive mechanism 12 includes a second drive motor 30 mounted on the fourth mounting plate 29, a second transmission belt 31 driven by the second drive motor 30, a second lifting plate 32 fixed on the second transmission belt 31, and the second suction nozzle 8 fixed on the second lifting plate 32.

[0015] The lens automatic inspection equipment described above is characterized in that: the feeding device further includes a receiving box 33 and a second slide rail 34 provided on the machine base 1. The receiving box 33 contains multiple layers of second trays 35. A second cylinder 36 and a second drag rod 37 driven to rise and fall by the second cylinder 36 are provided on the third mounting plate 28. A second insertion hole 38 is provided at the end of the second tray 35 for the second drag rod 37 to insert and drag the second tray 35 along the second slide rail 34 to enter and exit the receiving box 33. A second screw drive mechanism 39 for driving the receiving box 33 to rise and fall is provided below the receiving box 33.

[0016] The lens automatic inspection device described above is characterized in that: a second photoelectric sensor 41 for detecting the position of the second lifting plate 32 is provided on the fourth mounting plate 29; a second positioning groove 42 is provided on the second material tray 35; and a second positioning block 43 positions the second material tray 35 after the second slide rail 34 is in position.

[0017] Compared with the prior art, the present invention has the following advantages.

[0018] 1. The material box of this utility model adopts a double-layer closed-loop lifting mechanism with a lead screw and photoelectric sensor. The layer changing time is ≤3 seconds, enabling unattended continuous testing for ≥4 hours and increasing single-shift production capacity by more than 2.5 times. It can realize automatic detection of lens sine, and workers only need to change the material box, which can greatly improve the detection efficiency and reduce labor costs.

[0019] 2. This utility model achieves continuous production and greatly improves efficiency through the multi-layer material tray design of the feeding box and receiving box.

[0020] 3. The interferometer of this utility model has a built-in scissor-type lifting mechanism that works in conjunction with the electric gripper for posture correction, so that the tilt angle between the lens and the optical axis of the interferometer is ≤0.05°, which can effectively improve the detection accuracy.

[0021] 4. This utility model greatly improves the repeatability of the nozzle positioning accuracy through closed-loop servo control of the first linear motor, the second linear motor and the lifting drive mechanism, and significantly reduces misjudgment of the lens due to position error; the modular material tray positioning groove and positioning block design is compatible with multiple lens specifications, eliminating the need to replace the material tray and making the equipment highly versatile. Attached Figure Description

[0022] Figure 1 This is a perspective view of the utility model.

[0023] Figure 2 This is one of the perspective views of this utility model with some parts omitted.

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0026] Figure 5 This is the second perspective view of the present invention with some parts omitted.

[0027] Figure 6 yes Figure 5 A magnified view of point C in the middle.

[0028] Figure 7 yes Figure 5 Enlarged view of point D in the middle.

[0029] In the diagram: 1 is the machine base; 2 is the interferometer; 3 is the fourth photoelectric sensor; 4 is the first linear motor; 5 is the second linear motor; 6 is the first suction nozzle; 7 is the first lifting drive mechanism; 8 is the second suction nozzle; 9 is the third linear motor; 10 is the fourth linear motor; 11 is the third photoelectric sensor; 12 is the second lifting drive mechanism; 13 is the first mounting plate; 14 is the second mounting plate; 15 is the first drive motor; 16 is the first transmission belt; 17 is the first lifting plate; 18 is the feeding box; 19 is the first slide rail; 20 is the first material tray; 21 is the first cylinder; 22 is the first drag bar; 2 3 is the first insertion hole; 24 is the first lead screw drive mechanism; 25 is the first positioning groove; 26 is the first positioning block; 27 is the first photoelectric sensor; 28 is the third mounting plate; 29 is the fourth mounting plate; 30 is the second drive motor; 31 is the second transmission belt; 32 is the second lifting plate; 33 is the receiving box; 34 is the second slide rail; 35 is the second material tray; 36 is the second cylinder; 37 is the second drag rod; 38 is the second insertion hole; 39 is the second lead screw drive mechanism; 40 is the lifting mechanism; 41 is the second photoelectric sensor; 42 is the second positioning groove; 43 is the second positioning block; 44 is the electric gripper. Detailed Implementation

[0030] The technical features of this utility model will be further described in detail below with reference to the accompanying drawings so that those skilled in the art can understand them.

[0031] An automatic lens assimilation detection device includes a machine base 1, on which are mounted a loading device, a detection device for detecting lens assimilation, and a unloading device. The detection device is located between the loading and unloading devices. The loading device picks up lenses and places them onto the detection device, while the unloading device separates the inspected lenses into qualified and unqualified products. An opening is provided in the middle of one side of the machine base 1. The detection device includes an interferometer 2 located at the opening. A lifting mechanism 40 is provided at the bottom of the interferometer 2 to raise and lower the interferometer 2 to a suitable position for easy detection of lens assimilation. The lifting mechanism 40 adopts a scissor-type pneumatic structure. The entire device is enclosed in a housing, which includes an operating table and warning lights.

[0032] Example 1: The feeding device includes a first suction nozzle 6 for sucking the lens onto the interferometer 2 for testing, a first linear motor 4 for driving the first suction nozzle 6 to move along the X-axis, a second linear motor 5 for driving the first suction nozzle 6 to move along the Y-axis, and a first lifting drive mechanism 7 for driving the first suction nozzle 6 to rise and fall. The unloading device includes a second suction nozzle 8 for sucking away the tested lenses and storing them separately, a third linear motor 9 for driving the second suction nozzle 8 to move along the X-axis, a fourth linear motor 10 for driving the second suction nozzle 8 to move along the Y-axis, and a second lifting drive mechanism 12 for driving the second suction nozzle 8 to rise and fall.

[0033] Specifically, a first mounting plate 13, driven by the first linear motor 4 to move along the X-axis, is mounted on the first linear motor 4. A second linear motor 5 is mounted on the first mounting plate 13, and a second mounting plate 14, driven by the second linear motor 5 to move along the Y-axis, is mounted on the second linear motor 5. A first lifting drive mechanism 7 is mounted on the second mounting plate 14. The lens to be inspected is mounted on the first tray 20, and the first suction nozzle 6 is driven to move linearly in three dimensions to pick up the lens to be inspected onto the interferometer 2.

[0034] The first lifting drive mechanism 7 includes a first drive motor 15 mounted on the second mounting plate 14, a first transmission belt 16 driven by the first drive motor 15, a first lifting plate 17 fixed on the first transmission belt 16, and the first suction nozzle 6 fixed on the first lifting plate 17.

[0035] The first suction nozzle 6 is driven to rise and fall by the first transmission belt 16. An electric claw 44 is also provided next to the first suction nozzle 6 to correct the position of the misplaced lens during the adsorption process, so as to ensure that the lens is placed in the center position on the interferometer 2.

[0036] A first photoelectric sensor 27 is provided on the second mounting plate 14 to detect the position of the first lifting plate 17, ensuring that the first suction nozzle 6 can rise or fall to a specified height; when the first lifting plate 17 is driven, it moves up and down along the slide rail to ensure stable and accurate up and down movement.

[0037] The feeding device includes a third linear motor 9 mounted on the machine base 1, a third mounting plate 28 driven by the third linear motor 9 to move along the X-axis, a fourth linear motor 10 fixedly mounted on the third mounting plate 28, a fourth mounting plate 29 driven by the fourth linear motor 10 to move along the Y-axis, and a second lifting drive mechanism 12 for driving the second suction nozzle 8 to rise and fall on the fourth mounting plate 29.

[0038] The second lifting drive mechanism 12 has the same structure as the first lifting drive mechanism 7, including a second drive motor 30 mounted on the fourth mounting plate 29, a second transmission belt 31 driven by the second drive motor 30, a second lifting plate 32 fixed on the second transmission belt 31, and a second suction nozzle 8 fixed on the second lifting plate 32. The second lifting plate 32 is driven to move up and down along the slide rail. A second photoelectric sensor 41 for detecting the position of the second lifting plate 32 is provided on the fourth mounting plate 29.

[0039] The second suction nozzle 8 can also be driven to move linearly in three dimensions to pick up the inspected lenses and load them into the second tray 35. The inspected lenses are loaded into the second tray 35, which is approximately twice the size of the first tray 20, as about half of the second tray 35 is used to hold qualified products and the other half to hold unqualified products. The first tray 20 and the second tray 35 are mounted on the machine base 1.

[0040] Example 2 is based on Example 1, with the addition of a feeding box 18 and a receiving box 33.

[0041] The feeding device also includes a feeding box 18 and a first slide rail 19 on the machine base 1. The feeding box 18 is equipped with multiple layers of the first material trays 20. Multiple lenses to be inspected are provided on the first material trays 20. Each layer of the first material tray 20 must be pushed in and pulled out along the slide rail on the inner wall of the feeding box 18.

[0042] A first cylinder 21 and a first drag rod 22 driven by the first cylinder 21 are provided on the first mounting plate 13. A first insertion hole 23 is provided at the end of the first material tray 20 for the first drag rod 22 to insert and drag the first material tray 20 along the first slide rail 19 into and out of the loading box 18. The first suction nozzle 6 and the first drag rod 22 are respectively located on both sides of the second linear motor 5. The first drag rod 22 only needs to be driven by the first linear motor 4 to move along the X-axis direction and does not need to be driven by the second linear motor 5.

[0043] Below the loading box 18, there is a first lead screw drive mechanism 24 that drives the loading box 18 to rise and fall. The purpose is to drive the first tray 20 of a certain layer of the loading box 18 to align with the first slide rail 19, so that the drag rod 22 can pull out the first tray 20 of that layer in the loading box 18 or push the first tray 20 on the first slide rail 19 into that layer in the loading box 18. A third photoelectric sensor 11 is also provided on the machine base 1 to detect whether the first tray 20 of the loading box 18 has risen and fallen into place.

[0044] A first positioning groove 25 is provided on the first material tray 20, and a first positioning block 26 is provided on the first slide rail 19 to position the first material tray 20 after it is in place.

[0045] The first drag bar 22 pulls out the first tray 20, and then the first suction nozzle 6 sucks the lens on it onto the interferometer 2. After sucking up all the lenses on one layer of the first tray 20, it is pushed back to the loading box 18 by the first drag bar 22. Then the loading box 18 is raised and lowered to drag the first tray 20 of the other layer of the loading box 18 onto the first slide rail 19 and is positioned by the first positioning block 26.

[0046] The feeding device also includes a receiving box 33 and a second slide rail 34 mounted on the machine base 1. The receiving box 33 contains multiple layers of second trays 35. A second cylinder 36 and a second drag rod 37 driven by the second cylinder 36 are provided on the third mounting plate 28. At the end of the second tray 35, a second insertion hole 38 is provided for the second drag rod 37 to be inserted to drag the second tray 35 along the second slide rail 34 in and out of the receiving box 33. The second suction nozzle 8 and the second drag rod 37 are respectively located on both sides of the fourth linear motor 10.

[0047] Below the receiving box 33, there is a second lead screw drive mechanism 39 that drives the receiving box 33 to rise and fall. The purpose is to drive the slide rail of a certain layer on the inner wall of the receiving box 33 to align with the second slide rail 34, so that the second drag rod 37 can pull out the second tray 35 of that layer in the receiving box 33 or push the second tray 35 on the second slide rail 34 into that layer in the receiving box 33. A fourth photoelectric sensor 3 is also provided on the machine base 1 to detect whether the second tray 35 of the receiving box 33 has risen and fallen into place.

[0048] A second positioning groove 42 is provided on the second material tray 35, and a second positioning block 43 is provided on the second slide rail 34 to position the second material tray 35 after it is in place.

[0049] The working process of this utility model device is as follows:

[0050] The first lead screw drive mechanism 24 drives the first material tray 20 of one layer of the feeding box 18 to align with the first slide rail 19. The first drag rod 22 is driven by the first linear motor 4 to move along the X-axis and is driven by the first cylinder 21 to descend and insert into the first insertion hole 23 of the first material tray 20, dragging the first material tray 20 to the designated position of the first slide rail 19, where it is positioned by the first positioning block 26.

[0051] The first suction nozzle 6 is driven by the first linear motor 4 to move along the X-axis, driven by the second linear motor 5 to move along the Y-axis, and driven by the first lifting drive mechanism 7 to lift and grab the lens in the first material tray 20 to the interferometer 2 for ALS detection.

[0052] The second lead screw drive mechanism 39 drives the second material tray 35 of one layer of the receiving box 33 to align with the second slide rail 34. The second drag rod 37 is driven by the third linear motor 9 to move along the X-axis and is driven by the second cylinder 36 to descend and insert into the second insertion hole 38 of the second material tray 35, dragging the second material tray 35 to the designated position of the second slide rail 34, where it is positioned by the second positioning block 43.

[0053] The second suction nozzle 8 is driven by the third linear motor 9 to move along the X-axis, and by the fourth linear motor 10 to move along the Y-axis. It is driven by the second lifting drive mechanism 12 to lift and grab the lens that has been tested in the interferometer 2 to the second material tray 35. The control system controls the second suction nozzle 8 to place the lens into the qualified / unqualified area of ​​the second material tray 35 according to the data of the interferometer 2. Qualified products and unqualified products are stored separately.

[0054] This utility model achieves four major technical effects: full automation, continuous operation, high precision, and multi-specification compatibility. The high-speed, high-precision linear motor, the lifting mechanism and electric gripper ensuring lens posture, and the material box circulation ensuring continuous material supply—these three elements work synergistically and are indispensable. Through the integrated innovation of mechanical, electrical control, and optical fields, it solves the long-standing problem of "manual dependence + precision bottleneck" in this field.

[0055] The embodiments described herein are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. An apparatus for automatic detection of lens asymmetry, comprising an organic stage (1), characterized in that: The machine (1) is equipped with a feeding device, a detection device for detecting the asthma of the lens, and a discharging device for sorting qualified and unqualified products. The detection device is located between the feeding device and the discharging device. An opening is provided in the middle of one side of the machine (1). The detection device includes an interferometer (2) located at the opening. The feeding device includes a first suction nozzle (6) for sucking the lens to the interferometer (2) for detection, a first linear motor (4) for driving the first suction nozzle (6) to move along the X-axis, a second linear motor (5) for driving the first suction nozzle (6) to move along the Y-axis, and a first lifting drive mechanism (7) for driving the first suction nozzle (6) to rise and fall. The discharging device includes a second suction nozzle (8) for sucking away the detected lenses and storing them separately, a third linear motor (9) for driving the second suction nozzle (8) to move along the X-axis, a fourth linear motor (10) for driving the second suction nozzle (8) to move along the Y-axis, and a second lifting drive mechanism (12) for driving the second suction nozzle (8) to rise and fall.

2. The device for automatic lens asperformance detection according to claim 1, characterized in that: The first linear motor (4) is mounted on the machine base (1). A first mounting plate (13) driven by the first linear motor (4) to move along the X-axis is mounted on the first linear motor (4). The second linear motor (5) is mounted on the first mounting plate (13). A second mounting plate (14) driven by the second linear motor (5) to move along the Y-axis is mounted on the second linear motor (5). A first lifting drive mechanism (7) is mounted on the second mounting plate (14). A lifting mechanism (40) is provided at the bottom of the interferometer (2). An electric gripper (44) is also provided next to the first suction nozzle (6).

3. The device for automatic detection of lens asymmetry according to claim 2, characterized in that: The first lifting drive mechanism (7) includes a first drive motor (15) mounted on the second mounting plate (14), a first transmission belt (16) driven by the first drive motor (15), a first lifting plate (17) fixed on the first transmission belt (16), and the first suction nozzle (6) fixed on the first lifting plate (17).

4. The device for automatic detection of lens asymmetry according to claim 3, characterized in that: The feeding device also includes a feeding box (18) and a first slide rail (19) on the machine base (1). The feeding box (18) contains multiple first trays (20). The first trays (20) contain multiple lenses to be tested. A first cylinder (21) and a first drag bar (22) driven to move up and down by the first cylinder (21) are provided on the first mounting plate (13). At the end of the first tray (20), a first insertion hole (23) is provided for the first drag bar (22) to be inserted to drag the first tray (20) along the first slide rail (19) into and out of the feeding box (18). A first screw drive mechanism (24) for driving the feeding box (18) to move up and down is provided below the feeding box (18).

5. The device for automatic lens asperformance detection according to claim 4, characterized in that: A first positioning groove (25) is provided on the first material tray (20), and a first positioning block (26) is provided on the first slide rail (19) after the first material tray (20) is in place.

6. The device for automatic lens asperformance detection according to claim 4, characterized in that: A first photoelectric sensor (27) for detecting the position of the first lifting plate (17) is provided on the second mounting plate (14), and a third photoelectric sensor (11) for detecting whether the first material tray (20) in the loading box (18) has been raised or lowered into position is also provided on the machine base (1).

7. The device for automatic lens asperformance detection according to claim 1, characterized in that: The third linear motor (9) is mounted on the machine base (1). A third mounting plate (28) driven by the third linear motor (9) to move along the X-axis is mounted on the third linear motor (9). The fourth linear motor (10) is mounted on the third mounting plate (28). A fourth mounting plate (29) driven by the fourth linear motor (10) to move along the Y-axis is mounted on the fourth linear motor (10). The second lifting drive mechanism (12) is mounted on the fourth mounting plate (29).

8. The device for automatic lens asperformance detection according to claim 7, characterized in that: The second lifting drive mechanism (12) includes a second drive motor (30) mounted on the fourth mounting plate (29), a second transmission belt (31) driven by the second drive motor (30), a second lifting plate (32) fixed on the second transmission belt (31), and the second suction nozzle (8) fixed on the second lifting plate (32).

9. The device for automatic lens asperformance detection according to claim 8, characterized in that: The feeding device also includes a receiving box (33) and a second slide rail (34) on the machine base (1). The receiving box (33) contains multiple layers of second trays (35). A second cylinder (36) and a second drag bar (37) driven to rise and fall by the second cylinder (36) are provided on the third mounting plate (28). A second insertion hole (38) is provided at the end of the second tray (35) for the second drag bar (37) to be inserted to drag the second tray (35) along the second slide rail (34) into and out of the receiving box (33). A second screw drive mechanism (39) for driving the receiving box (33) to rise and fall is provided below the receiving box (33).

10. The device for automatic detection of lens asymmetry according to claim 9, characterized in that: A second photoelectric sensor (41) for detecting the position of the second lifting plate (32) is provided on the fourth mounting plate (29); a second positioning groove (42) is provided on the second material tray (35), and a second positioning block (43) positions the second material tray (35) after the second slide rail (34) is in place.

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