Optical lens thickness detection device

Abstract

The invention discloses an optical lens thickness detection device, and relates to the technical field of thickness detection, a displacement mechanism comprises an objective table and a telescopic driving piece, a motor is arranged on the objective table, the motor is externally connected with a sliding frame and a limiting frame matched with the sliding frame, and the limiting frame is fixedly connected to a telescopic section of the telescopic driving piece; the telescopic section of the telescopic driving piece is further provided with a stress piece, the stress piece is connected with the limiting frame, a spring is arranged between the stress piece and the telescopic section of the telescopic driving piece, and a spring is also arranged between the limiting frame and the sliding frame. According to the optical lens thickness detection device, after the object to be detected synchronously moves through the sliding frame, the detection points on the object to be detected change, and in the state, the object to be detected is rotated through the motor, so that the thicknesses of multiple points are continuously detected in the current'equal-thickness ring ', and the detection accuracy is improved. According to the scheme, the detectable range of the to-be-detected object can be covered without dead angles, and the thickness uniformity of the to-be-detected object can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of thickness detection, and in particular to a device for detecting the thickness of an optical lens. Background Art

[0002] The thickness detection of optical lenses is an important step before the lenses are qualified to leave the factory, which ensures the quality and function of the lenses. At present, the thickness detection of optical lenses is mostly divided into non-contact measurement such as laser or optical interference principle and probe contact measurement based on displacement sensor principle. In the process of detecting the thickness of optical lenses, not only the center thickness and edge thickness should be detected, but also the thickness uniformity of the lens should be tested. If the thickness of the lens is uneven, it will cause differences in focal lengths in different areas, thus affecting the imaging quality. Uneven thickness may also lead to uneven distribution of internal stress, thereby reducing the mechanical strength of the lens and increasing the risk of breakage.

[0003] In the prior art, for example, a Chinese invention patent with patent publication number CN117537727B discloses a multi-thickness detection device for optical lenses: "capable of detecting the thickness of multiple optical glasses at one time"; Among them, in order to ensure that the thickness of multiple optical lenses can be detected at the same time, because the detection direction is towards the side of the optical lens, only the distance from the top to the bottom of the optical lens under the side perspective can be measured. The detection dimension only exists in two dimensions, and the thickness uniformity of the optical lens cannot be detected. In order to solve this problem, we propose an optical lens thickness detection device. Summary of the invention

[0004] [Technical issues solved] In view of the shortcomings of the prior art, the present invention provides an optical lens thickness detection device, which has the advantages of thickness uniformity detection and "no dead angle" detection, and can effectively solve the problems in the background technology.

[0005]

Technical solution

[0006] Preferably, the conveying mechanism adopts a belt conveying mechanism, the shifting mechanism is set up near the discharge end of the conveying mechanism, the detection mechanism is set up on the conveying mechanism, and the detection point of the detection mechanism is exactly at the center of the conveying area on the conveying mechanism.

[0007] Preferably, the telescopic driving member is fixedly connected to the outside and can be fixedly connected to the frame of the conveying mechanism or the detection mechanism. The telescopic driving member is any one of a cylinder, an electric push rod or a hydraulic cylinder. The selection of the telescopic driving member depends on the structural size of the object to be detected.

[0008] Preferably, the loading platform is fixedly connected to the rotor of the motor based on its geometric center, the motor casing is fixedly connected to the slide, and two sliding bars are provided on the limit frame. The two sliding bars penetrate the slide and slide relative to the slide. The limit frame can be directly fixedly connected to the telescopic section of the telescopic drive member, or fixedly connected to the force-bearing member, and the two ends of the spring in the slide and the limit frame are fixedly connected to the limit frame and the slide respectively.

[0009] Preferably, the initial state of the spring in the slide and the limit frame is a contracted state, such as Figure 4 The structural status shown.

[0010] Preferably, the length of the slide is slightly larger than the radius of the object to be detected, so that the slide can drive the object to be detected to perform a lateral movement beyond its own radius, under the premise that the motor drives the object to be detected to rotate through the stage, so as to achieve full coverage of the detection range of the edge thickness or center thickness on the object to be detected.

[0011] Preferably, the force-bearing member can be a general plate, and a stopper is provided on the conveying mechanism. During the moving stroke of the telescopic driving member, the force-bearing member will contact the stopper.

[0012] Preferably, the spring coefficient between the force-bearing member and the telescopic driving member is relatively large, and is sufficient to support all structural components in the displacement mechanism except the telescopic driving member when the force-bearing member is not under force.

[0013] Preferably, in order to avoid excessive interference with laser thickness detection, the contact portion between the stage and the object to be detected adopts a spherical structure to minimize direct contact between the stage and the object to be detected. At this time, in order to ensure stable support for the object to be detected, there are at least three support points on the stage.

[0014] Preferably, the direction of the slide facing the telescopic section on the telescopic driving member is an inclined surface, and a pulley is provided at one end of the telescopic section on the telescopic driving member corresponding to the inclined surface.

[0015] Preferably, the wheel frame of the pulley is fixedly connected to the telescopic section of the telescopic drive member, and the pulley is in direct contact with the slide frame.

[0016] Preferably, a rotating member and a driving member are arranged between the force-bearing member and the limit frame, and the driving member is fixedly connected to the telescopic section of the telescopic driving member: when the rotating member is not subjected to force by the driving member, the rotating member cannot rotate; when the rotating member is subjected to force by the driving member, the rotating member drives the limit frame to rotate.

[0017] Preferably, when the thickness of the object to be detected detected by the detection mechanism exceeds a thickness threshold, the telescopic driving member is driven to drive the driving member to apply force to the rotating member.

[0018] Preferably, the thickness threshold may be preset with an upper thickness limit and a lower thickness limit to form a standard range of the thickness of the object to be detected. When the detected thickness of the object to be detected exceeds this range, it is regarded as a defective product.

[0019] Preferably, the rotating member includes gear one and gear two, and gear one and gear two are relatively vertically mounted and meshed based on the axial direction thereon, wherein gear one is fixedly connected to the limit frame, and gear two is mounted in a direction opposite to the moving direction of the driving member, and a rotating seat is provided on gear two, and the rotating seat rotates after receiving the force from the driving member.

[0020] Preferably, gear one and gear two are helical gears, gear one is fixedly connected to a limit frame via a connecting frame, gear one and gear two are meshed and can rotate with each other and cannot be separated, the rotating seat is fixedly connected to gear two, and gear two is a hollow structure.

[0021] Preferably, the driving member comprises a trigger rod matched with the rotating seat and a limit head for limiting the rotation of the gear 1, and the trigger rod and the limit head are both fixedly connected to the telescopic section on the telescopic driving member; A limit groove is provided on the gear 1, and the limit groove matches the structure of the limit head.

[0022] Preferably, the limit head is a square structure.

[0023] Preferably, the rotating seat and the trigger rod are any one of a screw assembly or a screw bolt. The common feature of such structures is that the axial linear motion of the screw is converted into the rotational motion of the bolt.

[0024] Preferably, the conveying member on the conveying mechanism is replaced with an object carrier, and the side profile of the object carrier is a truncated cone-like structure that gradually increases in size from top to bottom, which matches the structure of the object to be detected. In this way, supported transportation of the object to be detected can be achieved. In this state, even the object to be detected, such as an optical lens, can still be stably supported after frequent movements.

[0025]

Beneficial Effects

[0026] Figure 1 The overall structure of an optical lens thickness detection device of the present invention is shown in FIG. Figure 1 .

[0027] Figure 2 The overall structure of an optical lens thickness detection device of the present invention is shown in FIG. Figure 2 .

[0028] Figure 3 The figure is a side view of an optical lens thickness detection device of the present invention.

[0029] Figure 4 The present invention is a schematic structural diagram of a displacement mechanism in an optical lens thickness detection device.

[0030] Figure 5 The figure is a top view of a displacement mechanism in an optical lens thickness detection device according to the present invention.

[0031] Figure 6 It is a structural schematic diagram of a displacement mechanism in an optical lens thickness detection device as a preferred embodiment of the present invention.

[0032] Figure 7 It is a schematic structural diagram of a shift mechanism as a rotating part in a preferred embodiment of an optical lens thickness detection device of the present invention.

[0033] Figure 8 It is a schematic structural diagram of a displacement mechanism as a driving member in a preferred embodiment of an optical lens thickness detection device of the present invention.

[0034] Fig. 9 The figure is a schematic diagram of the docking state of a displacement mechanism in an optical lens thickness detection device of the present invention as a preferred embodiment.

[0035] Fig.10 It is a structural schematic diagram of a conveying mechanism in an optical lens thickness detection device as a preferred embodiment of the present invention.

[0036] In the figure: 001. Object to be tested; 1. Conveying mechanism; 2. Shifting mechanism; 3. Detection mechanism; 11. Stopper; 12. Object carrier; 21. Loading platform; 22. Motor; 23. Slide; 24. Telescopic driving member; 25. Force bearing member; 26. Spring; 27. Limiting frame; 251. Pulley; 271, rotating member; 272, driving member; 273, connecting frame; 2711, gear one; 2712, gear two; 2713, rotating seat; 27111, limit slot; 2721, trigger rod; 2722, limit rod; 27221, limit head. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and functional effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] [Example 1] In order to address the shortcomings of the existing technology, such as Figures 1 to 3As shown, the present invention provides an optical lens thickness detection device, wherein the conveying mechanism 1 adopts a belt conveying mechanism 1, the shifting mechanism 2 is mounted at a discharge end adjacent to the conveying mechanism 1, and the detection mechanism 3 is mounted on the conveying mechanism 1, and the detection point of the detection mechanism 3 is exactly at the center of the conveying area on the conveying mechanism 1.

[0039] It should be noted that, in the process of testing the object to be tested 001 such as an optical lens, the object to be tested 001 is transported by the transport mechanism 1. After being transported to the bottom of the detection mechanism 3, the object to be tested 001 is moved by the shift mechanism 2 according to the thickness position to be tested. For example, for the center thickness of the object to be tested 001, it is necessary to first transport the object to be tested 001 to the center position thereof corresponding to the detection point position on the detection mechanism 3. During this period, the transport mechanism 1 needs to stop transporting the object to be tested 001. After the center thickness detection of the object 001 to be detected is completed, if the edge thickness of the object 001 to be detected needs to be detected, the object 001 to be detected needs to be moved by the shift mechanism 2, and then the edge thickness detection is performed according to the above-mentioned method steps for center thickness detection; In the above process of edge thickness detection, in order to detect the uniformity of the thickness of the object to be detected 001, it is necessary to rotate the detection mechanism 3 through the shift mechanism 2. On the premise that the detection mechanism 3 remains stationary, the thickness of the same "equal thickness ring" on the object to be detected 001 is randomly sampled or continuously detected, and during this period, the position of the object to be detected 001 is moved to detect different "equal thickness rings" on the object to be detected 001; During this period, the position of the object to be detected 001 is moved by the shift mechanism 2, and the position of the detection point on the object to be detected 001 is changed to detect the thickness of the detection point on different "equal thickness rings".

[0040] Among them, the detection point is such as the light source on the laser non-contact detection mechanism 3, or the probe on the contact detection mechanism 3. When the contact detection mechanism 3 is used, the detection thickness of the object 001 to be detected is based on the difference between the downward stroke of the probe and the moving stroke of the telescopic drive member 24. Compensation coefficients such as the redundant stroke of the telescopic drive member 24 need to be reasonably calculated.

[0041] Specifically, Figure 4 , 5 As shown, a displacement mechanism 2 for an optical lens thickness detection device, a telescopic driving member 24 is fixedly connected to the outside, and can be fixedly connected to the frame of the conveying mechanism 1 or the detection mechanism 3, the telescopic driving member 24 is any one of a cylinder, an electric push rod or a hydraulic cylinder, and the selection of the telescopic driving member 24 depends on the structural size of the object to be detected 001; The stage 21 is fixedly connected to the rotor of the motor 22 based on its geometric center. The housing of the motor 22 is fixedly connected to the slide 23. Two slide bars are arranged on the limit frame 27. The two slide bars penetrate the slide 23 and slide relative to it. The limit frame 27 can be directly fixedly connected to the telescopic section of the telescopic driving member 24, or fixedly connected to the force-bearing member 25. The two ends of the spring 26 in the slide 23 and the limit frame 27 are fixedly connected to the limit frame 27 and the slide 23 respectively.

[0042] The initial state of the spring 26 in the slide 23 and the limit frame 27 is a contracted state. Figure 4 The structural state shown; the length of the slide 23 is slightly larger than the radius of the object to be detected 001, so that the slide 23 can drive the object to be detected 001 to move horizontally beyond its own radius, and under the premise that the motor 22 drives the object to be detected 001 to rotate through the stage 21, the detection range of each edge thickness or center thickness on the object to be detected 001 can be fully covered; The force-bearing member 25 can be a general plate. A stopper 11 is provided on the conveying mechanism 1. During the movement of the telescopic driving member 24, the force-bearing member 25 will contact the stopper 11. The spring 26 between the force-bearing member 25 and the telescopic driving member 24 has a large spring coefficient. When the force-bearing member 25 is not stressed, it is sufficient to support all structural components of the displacement mechanism 2 except the telescopic driving member 24. In order to avoid excessive interference with the laser thickness detection, the contact part between the stage 21 and the object to be detected 001 adopts a spherical structure to minimize the direct contact between the stage 21 and the object to be detected 001. At this time, in order to ensure stable support for the object to be detected 001, there are at least three supporting points on the stage 21.

[0043] It should be noted that the present invention is an optical lens thickness detection device. Through the provided shift mechanism 2, in the process of detecting the thickness of the object to be detected 001, the telescopic driving member 24 drives all the components on the shift mechanism 2 except the telescopic driving member 24 to move vertically upward, so that the stage 21 acts on the object to be detected 001 to support the object to be detected 001. After the object to be detected 001 is supported on the stage 21 and moves up a certain distance, when the object to be detected 001 is separated from the contact with the conveying mechanism 1, at this time, during the process of the telescopic driving member 24 continuing to drive, the force-bearing member 25 is driven to be limited by the position of the stopper 11 on the conveying mechanism 1. Thereafter, during the process of the telescopic driving member 24 continuing to drive, the slide 23, together with the stage 21 and the motor 22, no longer continues to move upward, and the telescopic driving member 24 acts on the slide 23, so that the slide 23 slides relatively based on the limit frame 27 to realize the lateral displacement of the position of the object to be detected 001. The moving direction of the slide 23 is as shown in FIG. Figure 5 The structural state shown; In this state, the motor 22 drives the stage 21 to rotate, and based on the previous lateral shift of the position of the object 001 to be inspected, the thickness of each point on the object 001 to be inspected is detected.

[0044] It is worth mentioning that the continuous conveying of the object to be detected 001 is realized by the conveying mechanism 1, and in the process of detecting the thickness of the object to be detected 001, the telescopic driving member 24 drives the stage 21 to rise vertically so that the object to be detected 001 is separated from the contact with the conveying mechanism 1. During this period, the movement of the object to be detected 001 in the conveying direction of the conveying mechanism 1 is only indirectly realized by the force exerted by the telescopic driving member 24 on the slide 23, and the motor 22 drives the stage 21 to rotate the object to be detected 001. After the object to be detected 001 is synchronously moved by the slide 23, the detection point on it occurs. In this state, the motor 22 is used to rotate the object 001 to be inspected, so that the multi-point thickness can be continuously detected within the current "equal thickness ring". This solution can not only cover the detectable range of the object 001 to be inspected "without blind spots", but also detect the uniformity of the thickness of the object 001 to be inspected. On the one hand, it reduces the need for manual intervention and improves the degree of automation of the detection of the object 001 to be inspected, which meets the continuous operation requirements of the production line. On the other hand, it can more comprehensively evaluate the thickness detection results of the lens based on the thickness uniformity to ensure the reliability of the detection results.

[0045] As a preferred embodiment, specifically, Figure 4 As shown, a displacement mechanism 2 for an optical lens thickness detection device, a slide 23 has an inclined surface facing the telescopic section of the telescopic drive member 24, and a pulley 251 is provided at one end of the telescopic section of the telescopic drive member 24 corresponding to the inclined surface; the wheel frame of the pulley 251 is fixedly connected to the telescopic section of the telescopic drive member 24, and the pulley 251 is in direct contact with the slide 23.

[0046] As a preferred embodiment, specifically, Fig.10 As shown, a conveying mechanism 1 for an optical lens thickness detection device, the conveying member on the conveying mechanism 1 is replaced by a carrier 12, and the side profile of the carrier 12 is a frustum-like structure that gradually increases from small to large from top to bottom, which is consistent with the structure of the object 001 to be detected.

[0047] It should be noted that the present invention is an optical lens thickness detection device, which provides a conveying mechanism 1, and a conveying member such as a conveyor belt or a conveyor roller on the conveying mechanism 1 is structured in a shape such as a carrier 12, so that supported transportation of the object 001 to be detected can be achieved. In this state, even if the object 001 to be detected is an optical lens, the object 001 to be detected can still be stably supported after frequent movement.

[0048] [Example 2] Based on the above-mentioned first embodiment, during the process of detecting the thickness of the object to be detected 001, the thickness of the object to be detected 001 may not meet the standard. In order to facilitate the sorting of unqualified objects to be detected 001, this embodiment is proposed to further improve the structure of the shift mechanism 2: Specifically, Figures 6 to 9 As shown, a displacement mechanism 2 for an optical lens thickness detection device is provided with a rotating member 271 and a driving member 272 between a force-bearing member 25 and a limiting frame 27, and the driving member 272 is fixedly connected to the telescopic section of the telescopic driving member 24: when the rotating member 271 is not subjected to force by the driving member 272, the rotating member 271 cannot rotate; when the rotating member 271 is subjected to force by the driving member 272, the rotating member 271 drives the limiting frame 27 to rotate.

[0049] Furthermore, the rotating member 271 includes a gear 1 2711 and a gear 2 2712, and the gear 1 2711 and the gear 2 2712 are relatively vertically mounted and meshed based on the axial direction thereon, wherein the gear 1 2711 is fixedly connected to the limit frame 27, and the gear 2 2712 is mounted in the moving direction facing the driving member 272, and a rotating seat 2713 is arranged on the gear 2 2712, and the rotating seat 2713 rotates after receiving the force from the driving member 272; Gear 1 2711 and gear 2 2712 are helical gears. Gear 1 2711 is fixedly connected to the limit frame 27 through the connecting frame 273. Gear 1 2711 and gear 2 2712 are meshed and can rotate with each other and cannot be separated. The rotating seat 2713 is fixedly connected to gear 2 2712. Gear 2 2712 is a hollow structure. The driving member 272 includes a trigger rod 2721 that cooperates with the rotating seat 2713 and a limit head 27221 that limits the rotation of the gear 1 2711. The trigger rod 2721 and the limit head 27221 are both fixedly connected to the telescopic section of the telescopic driving member 24; a limit groove 27111 is opened on the gear 1 2711, and the limit groove 27111 is matched with the structure of the limit head 27221; the limit head 27221 is a square structure.

[0050] As a preferred embodiment, the rotating seat 2713 and the trigger rod 2721 are either a screw assembly or a screw bolt. The common feature of such structures is that the axial linear motion of the screw is converted into the rotational motion of the bolt.

[0051] Among them, when the thickness of the object to be detected 001 detected by the detection mechanism 3 exceeds the thickness threshold, the telescopic driving member 24 is driven to drive the driving member 272 to apply force to the rotating member 271; the thickness threshold can preset an upper thickness limit and a lower thickness limit to constitute a standard range of the thickness of the object to be detected 001. When the detected thickness of the object to be detected 001 exceeds this range, it is regarded as a defective product.

[0052] It should be noted that the present invention is an optical lens thickness detection device. Through the provided shift mechanism 2, during the thickness detection of the object to be detected 001, in the normal detection state, the limit rod 2722 acts on the gear 1 2711 to prevent the gear 1 2711 from rotating, so as to ensure the overall support stability of the stage 21, the motor 22, and the slide 23; When the center thickness or edge thickness of the object to be detected 001 does not meet the standard, the telescopic driving member 24 is controlled to continue to move upward until the trigger rod 2721 acts on the rotating seat 2713, driving the rotating seat 2713 to rotate. During the process of the trigger rod 2721 acting on the rotating seat 2713, the limit rod 2722 just breaks away from the contact with the gear 1 2711. Thereafter, the telescopic driving member 24 continues to drive, driving the trigger rod 2721 to act on the rotating seat 2713, so that the rotating seat 2713 drives the gear 2 2712 to rotate. During the rotation of the gear 2 2712, the gear 1 2711 rotates synchronously, so as to drive the loading platform 21, the motor 22, and the slide 23 to flip toward the conveying direction of the conveying mechanism 1 through the connecting frame 273, presenting a relative inclination angle, and in this state, the unloading of the object to be detected 001 is realized.

[0053] It is worth mentioning that if it is detected that the thickness of the object to be inspected 001 exceeds the preset thickness threshold, it is only necessary to drive the gear 2 2712 of the telescopic drive member 24 to drive the gear 1 2711 to rotate, thereby driving the slide 23 to flip, and unloading the object to be inspected 001 instead of continuing to transport it by the conveying mechanism 1, thereby realizing automatic sorting of unqualified objects to be inspected 001 without stopping the machine, which is more in line with the continuous operation requirements of the production line.

[0054] In this embodiment, those skilled in the art will appreciate that setting up a waste bin in the unloading direction of the object to be detected 001 is beneficial for sorting. The above-mentioned operation steps are implemented based on a control system, during which the control rule may adopt a threshold method, referring to the prior art. For example, the control system may enter the thickness threshold of the optical lens in advance. During the detection process, if the detection result of the detection mechanism 3 exceeds the thickness threshold of the optical lens, a corresponding driving electrical signal is output. For example, if a fluid pressure-actuated telescopic drive member 24 such as an oil cylinder or an air cylinder is used, the driving electrical signal is transmitted to the pump or solenoid valve of the oil supply system or the air supply system thereon for control, so as to change the extension length of the telescopic drive member 24. If a telescopic drive member 24 such as an electric push rod is used, the driving electrical signal is transmitted to the motor thereon for control. During this period, the control logic may adopt a simple PLC program or an embedded control program, which will not be elaborated in this embodiment.

[0055] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. An optical lens thickness detection device, comprising a conveying mechanism (1) and a detection mechanism (3), characterized in that: The device also comprises a shift mechanism (2), wherein the shift mechanism (2) comprises a loading platform (21) and a telescopic driving member (24), wherein a motor (22) for driving the loading platform (21) to rotate is arranged on the loading platform (21), wherein the motor (22) is externally connected to a slide frame (23), and a limit frame (27) cooperates with the slide frame (23), wherein the slide frame (23) can be laterally shifted in a vertical direction of the axial direction of the telescopic driving member (24) based on the limit frame (27), and the limit frame (27) is fixedly connected to the telescopic section of the telescopic driving member (24); A force-bearing member (25) is also provided on the telescopic section of the telescopic driving member (24), the force-bearing member (25) being connected to a limiting frame (27), and a spring (26) being provided between the force-bearing member (25) and the telescopic section of the telescopic driving member (24). Under the premise that the force-bearing member (25) is not subjected to force, the telescopic driving member (24) drives all structural components other than the telescopic driving member (24) on the displacement mechanism (2) to move, and after the force-bearing member (25) is subjected to force and cannot continue to move, the telescopic section of the telescopic driving member (24) applies force to the slide (23) so that the slide (23) slides relatively to the limiting frame (27), and a spring (26) is also provided between the limiting frame (27) and the slide (23).

2. The optical lens thickness detection device according to claim 1, characterized in that: The direction of the telescopic section on the telescopic driving member (24) facing the slide (23) is an inclined surface, and a pulley (251) is provided at one end of the telescopic section on the telescopic driving member (24) corresponding to the inclined surface.

3. The optical lens thickness detection device according to claim 1, characterized in that: A rotating member (271) and a driving member (272) are provided between the force-bearing member (25) and the limiting frame (27), and the driving member (272) is fixedly connected to the telescopic section of the telescopic driving member (24): when the rotating member (271) is not subjected to force by the driving member (272), the rotating member (271) cannot rotate; when the rotating member (271) is subjected to force by the driving member (272), the rotating member (271) drives the limiting frame (27) to rotate.

4. The optical lens thickness detection device according to claim 3, characterized in that: When the thickness of the object to be detected (001) detected by the detection mechanism (3) exceeds a thickness threshold, the telescopic driving member (24) is driven to drive the driving member (272) to apply force to the rotating member (271).

5. The optical lens thickness detection device according to claim 3, characterized in that: The rotating member (271) comprises a gear 1 (2711) and a gear 2 (2712), wherein the gear 1 (2711) and the gear 2 (2712) are relatively vertically mounted and meshed based on the axial direction thereof, wherein the gear 1 (2711) is fixedly connected to the limit frame (27), and the gear 2 (2712) is mounted in a direction facing the moving direction of the driving member (272), and a rotating seat (2713) is provided on the gear 2 (2712), and the rotating seat (2713) rotates after receiving the force from the driving member (272).

6. The optical lens thickness detection device according to claim 5, characterized in that: The driving member (272) comprises a trigger rod (2721) cooperating with the rotating seat (2713) and a limit head (27221) for limiting the rotation of the gear 1 (2711); the trigger rod (2721) and the limit head (27221) are both fixedly connected to the telescopic section on the telescopic driving member (24); A limiting groove (27111) is provided on the gear one (2711), and the structure of the limiting groove (27111) matches that of the limiting head (27221).

7. An optical lens thickness detection device according to claim 6, characterized in that: The rotating seat (2713) and the trigger rod (2721) are either a screw assembly or a screw bolt.

8. The optical lens thickness detection device according to claim 1, characterized in that: The conveying member on the conveying mechanism (1) is replaced by an object carrier (12), and the side profile of the object carrier (12) is a truncated cone-like structure that gradually increases in size from top to bottom, and is consistent with the structure of the object to be detected (001).

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