A reversible lens coating surface detection device

Abstract

The utility model relates to lens coating detection technical field, especially for a kind of turnover type lens coating surface detection device, including placing table, the top of placing table is fixed with support rod, the top of support rod is fixed with uniform speed turnover mechanism and penetrates;Uniform speed turnover mechanism includes cavity screw rod, cavity screw rod's outside is equipped with support spring, the front end of support spring outside is installed with uniform speed turnover piece, the front end of uniform speed turnover piece is installed with the lens limiting piece for the limiting of circular lens;Uniform speed turnover piece includes screw rod connecting sleeve, the front end of screw rod connecting sleeve is installed with two link rods, and the angle area of link rod inner side is provided with inclined slot, and the inner side of screw rod connecting sleeve is installed with screw thread positioning bead, in the utility model, through the uniform speed turnover mechanism set, the core pain point that traditional lens coating detection turns over speed out of control, key angle stays short is solved, and the convenience and stability of detection operation are optimized simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of lens coating inspection technology, specifically a flip-type lens coating surface inspection device. Background Technology

[0002] In the lens production process, in order to ensure a high pass rate, it is crucial to conduct manual inspection of the coating of round lenses before they leave the factory. Currently, in order to achieve multi-angle observation of the coating of round lenses, the common practice is to use an external round clamp to fix it on the outside of the lens, and then use a connecting shaft to drive the clamp and the lens to rotate together. Under sufficient light conditions, the inspectors carefully observe the mirror coating and look for defects. However, during actual operation and adjustment, this method revealed problems. Circular lenses often have a flattened elliptical structure. When the inspector flips the lens through the connecting shaft, the weight of the lens and the fixture will have an impact. Especially when the lens is flipped from a position of ±45° to a vertical angle, the circular lens and fixture will flip rapidly due to gravity. As a result, the lens angle stay time is too short during this process, and the inspector cannot fully inspect the key parts. As a result, it is difficult to accurately observe and detect defects on the coating surface, which hinders the control of the lens's factory quality. Therefore, a flip-type lens coating surface inspection device is proposed to address the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a flip-type lens coating surface inspection device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A flip-type lens coating surface inspection device includes a placement stage, a support rod fixed above the placement stage, and a uniform speed flipping mechanism fixed through the top of the support rod. The uniform speed flipping mechanism includes a cavity screw, a support spring sleeved on the outer side of the cavity screw, a uniform speed flipping component installed at the front end of the outer side of the support spring, and a lens limiting component for limiting a circular lens installed at the front end of the uniform speed flipping component. The uniform speed flipping component includes a screw connecting sleeve, two connecting rods installed at the front end of the screw connecting sleeve, a slanted groove formed in the corner area of ​​the inner side of the connecting rod, and a threaded positioning bead installed on the inner side of the screw connecting sleeve, the threaded positioning bead being embedded in the threaded groove of the cavity screw. The lens limiting component includes two symmetrical lens limiting arms, a light source passage cavity formed on one side of the lens limiting arm, and a lens holder for limiting a circular lens fixed on the other side of the lens limiting arm.

[0005] As a further optimization of this utility model, the front end of the inner side of the cavity screw is fixed with an LED lamp body, and both sides of the front end of the cavity screw are fixed with limiting rods for limiting the support spring.

[0006] As a further optimization of this utility model, the two light-transmitting cavities of the light source are located on both sides of the front end of the cavity screw, the inner side of the lens holder has an arc structure, and the lens holder and the lens limiting arm are parallel to each other.

[0007] As a further optimization of this utility model, the rear end of the lens limiting arm is provided with a mating groove, and the vertical projection shape of the lens limiting arm is a semi-circular structure with a notch accounting for five-sixths of the total area.

[0008] As a further optimization of this utility model, the front end of the lens limiting arm is fixed with a magnetic connector. The outer side of the magnetic connector is a hemispherical structure, and a magnetic block is embedded in the inner side of the magnetic connector. The two magnetic connectors are attracted to each other by the magnetic block.

[0009] As a further optimization of this utility model, the axis of the screw connecting sleeve and the axis of the hollow screw are located on the same straight line, and the end of the threaded positioning bead has a hemispherical structure.

[0010] As a further optimization of this utility model, the two connecting rods are located at the bottom and top of the front end of the screw connecting sleeve, respectively. The end of the connecting rod near the lens limiting arm is inclined, and the included angle between the vertical projections of the two connecting rods is 30°.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a uniform speed flipping mechanism, the core pain points of uncontrolled flipping speed and short dwell time at key angles in traditional lens coating inspection are solved. At the same time, the convenience and stability of the inspection operation are optimized. The matching groove can effectively avoid structural interference when the lens limiting arm opens and closes, ensuring smooth clamping action. The transmission structure of the threaded positioning ball and the cavity screw can drive the lens to achieve uniform and stable flipping, allowing the inspector to fully inspect key areas at various angles and avoid missing coating defects. 2. The magnetic limiting structure allows for quick loading and unloading of lenses, with a secure and damage-free clamping. The built-in coaxial LED light source shines directly onto the lens through the light-transmitting cavity, and the tilting connecting rod does not obstruct the light path, ensuring clear visibility of the coated surface. In addition, the support spring enables automatic component reset, and the limiting rod prevents component separation, greatly improving the efficiency and accuracy of the inspection operation and providing a reliable guarantee for the quality control of lenses leaving the factory. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lens limiting component of this utility model in its open and closed state; Figure 3 This is a schematic diagram of the uniform speed flipping component of this utility model; Figure 4 This is a structural schematic diagram of the uniform speed flipping component and the lens limiting component of this utility model; Figure 5 This is a schematic diagram of the lens limiting component of this utility model; Figure 6 This is a schematic diagram of the cavity screw of this utility model.

[0013] In the diagram: 1. Placement platform; 2. Support rod; 3. Uniform speed tilting mechanism; 31. Hollow screw; 32. Support spring; 33. Uniform rotation component; 34. Lens limiting component; 35. LED lamp body; 36. Limiting rod; 331. Screw connecting sleeve; 332. Connecting rod; 333. Inclined groove; 334. Threaded positioning ball; 341. Lens limiting arm; 342. Light source passage cavity; 343. Lens holder; 344. Mating groove; 345. Magnetic connector. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-6 This utility model provides a technical solution: A flip-type lens coating surface inspection device includes a placement platform 1, a support rod 2 fixed above the placement platform 1, and a uniform speed flipping mechanism 3 fixed through the top of the support rod 2. The uniform speed flipping mechanism 3 includes a hollow screw 31, a support spring 32 sleeved on the outer side of the hollow screw 31, a uniform speed flipping component 33 installed at the front end of the outer side of the support spring 32, a lens limiting component 34 for limiting the circular lens installed at the front end of the uniform speed flipping component 33, an LED light body 35 fixed at the front end of the inner side of the hollow screw 31, and limiting components for limiting the support spring 32 fixed on both sides of the front end of the hollow screw 31. Positioning rod 36; Uniform speed flipping component 33 includes screw connecting sleeve 331, with two connecting rods 332 installed at the front end of screw connecting sleeve 331, and inclined grooves 333 opened in the corner area of ​​the inner side of the connecting rods 332. Threaded positioning beads 334 are installed on the inner side of screw connecting sleeve 331 and are embedded in the threaded groove of the cavity screw 31; Lens limiting component 34 includes two left and right symmetrical lens limiting arms 341, with a light source passage cavity 342 opened on one side of the lens limiting arm 341, and a lens holder 343 for limiting a circular lens is fixed on the other side of the lens limiting arm 341.

[0017] To further explain, the axis of the screw connecting sleeve 331 and the axis of the cavity screw 31 are on the same straight line. The end of the threaded positioning bead 334 has a hemispherical structure. The coaxial screw connecting sleeve 331 and the cavity screw 31 ensure transmission stability. The hemispherical threaded positioning bead 334 reduces the frictional resistance of the thread groove, realizes uniform rotation of the lens, and solves the problem of rapid rotation caused by gravity. As a further implementation of this solution, two connecting rods 332 are located at the bottom and top of the front end of the screw connecting sleeve 331, respectively. The end of the connecting rod 332 near the lens limiting arm 341 is inclined, and the vertical projection angle between the two connecting rods 332 is 30°. This inclined connecting rod 332 is adapted to the rotation path of the lens limiting arm 341, which not only avoids blocking the light transmission cavity 342, but also provides stable support for lens flipping, thus solving the problems of component interference and light source blocking. As a further implementation of this solution, the two light-transmitting cavities 342 are located on both sides of the front end of the cavity screw 31, and the inner side of the lens holder 343 has an arc structure. The lens holder 343 and the lens limiting arm 341 are parallel to each other. Specifically, the light-passing cavity 342 avoids the light path of the LED lamp body 35, ensuring that the light fully covers the lens, and the arc lens holder 343 fits the lens contour and is parallel to the limiting arm, thus firmly holding the lens. As a further implementation of this solution, a mating groove 344 is provided at the rear end of the lens limiting arm 341. The vertical projection shape of the lens limiting arm 341 is a semi-circular structure with a notch accounting for five-sixths of the total area. The mating groove 344 provided in this way can avoid structural interference in the open and closed state. As a further implementation of this solution, a magnetic connector 345 is fixed to the front end of the lens limiting arm 341. The outer side of the magnetic connector 345 is a hemispherical structure, and a magnetic block is embedded in the inner side of the magnetic connector 345. The two magnetic connectors 345 are attracted to each other by the magnetic block. The hemispherical magnetic connector 345 configured in this way enables the lens to be quickly opened and closed and clamped, and the magnetic attraction ensures stable clamping.

[0018] Work process: Before testing, the two lens limiting arms 341 are in the open and closed state. The mating groove 344 at the rear end can avoid structural interference with the connecting rod 332, making it easy for the tester to place the round lens stably between the two lens holders 343, ensuring that the lens and the lens holders 343 remain parallel. During the installation and fixing stage, the lens limiting arm 341 is pushed inward to rotate around the connecting rod 332. Under the magnetic attraction of the built-in magnetic block of the magnetic connector 345, the two lens limiting arms 341 are completely closed, and the circular lens is stably clamped through the lens holder 343. Then, the LED lamp body 35 inside the cavity screw 31 is opened, and the light shines on the lens coating surface through the light source cavity 342. The inclined connecting rod 332 will not block the light source, ensuring that the upper and lower surfaces of the lens are fully illuminated. During the flipping test, the magnetic connector 345 in the closed state is pushed, which drives the uniform flipping component 33 to move axially along the cavity screw 31, and the threaded positioning bead 334 rotates uniformly along the screw thread groove, so as to achieve smooth and uniform flipping of the lens. To inspect key areas, stop pushing to fix the lens angle. After the inspection is completed, release the magnetic connector 345. The elastic force of the support spring 32 drives the uniform speed flipping component 33 and the lens limiting component 34 to return to the initial installation angle. The limiting rod 36 can prevent the uniform speed flipping component 33 from separating from the cavity screw 31. Open the lens limiting arm 341 to remove the lens for easy use in the next inspection.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flip-type lens coating surface inspection device, comprising a placement stage (1), characterized in that: A support rod (2) is fixed above the placement platform (1), and a uniform speed flipping mechanism (3) is fixed through the top of the support rod (2). The uniform speed flipping mechanism (3) includes a cavity screw (31), a support spring (32) is sleeved on the outside of the cavity screw (31), a uniform speed flipping component (33) is installed at the front end of the outside of the support spring (32), and a lens limiting component (34) for limiting the circular lens is installed at the front end of the uniform speed flipping component (33). The uniform speed rotating component (33) includes a screw connecting sleeve (331), and two connecting rods (332) are installed at the front end of the screw connecting sleeve (331). An inclined groove (333) is opened in the corner area of ​​the inner side of the connecting rod (332). A threaded positioning bead (334) is installed on the inner side of the screw connecting sleeve (331). The threaded positioning bead (334) is embedded in the threaded groove of the hollow screw (31). The lens limiting member (34) includes two left and right symmetrical lens limiting arms (341). A light source passage cavity (342) is opened on one side of the lens limiting arm (341), and a lens holder (343) for limiting a circular lens is fixed on the other side of the lens limiting arm (341).

2. The flip-type lens coating surface inspection device according to claim 1, characterized in that: The front end of the cavity screw (31) is fixed with an LED lamp body (35), and both sides of the front end of the cavity screw (31) are fixed with limiting rods (36) for limiting the support spring (32).

3. The flip-type lens coating surface inspection device according to claim 1, characterized in that: The two light-transmitting cavities (342) are located on both sides of the front end of the cavity screw (31), the inner side of the lens holder (343) has an arc structure, and the lens holder (343) and the lens limiting arm (341) are parallel to each other.

4. The flip-type lens coating surface inspection device according to claim 1, characterized in that: The rear end of the lens limiting arm (341) is provided with a mating groove (344), and the vertical projection shape of the lens limiting arm (341) is a semi-circular structure with a notch accounting for five-sixths of the total area.

5. The flip-type lens coating surface inspection device according to claim 1, characterized in that: The front end of the lens limiting arm (341) is fixed with a magnetic connector (345). The outer side of the magnetic connector (345) is a hemispherical structure, and a magnetic block is embedded in the inner side of the magnetic connector (345). The two magnetic connectors (345) are attracted to each other by the magnetic block.

6. The flip-type lens coating surface inspection device according to claim 1, characterized in that: The axis of the screw connecting sleeve (331) and the axis of the cavity screw (31) are on the same straight line, and the end of the threaded positioning bead (334) has a hemispherical structure.

7. The flip-type lens coating surface inspection device according to claim 1, characterized in that: The two connecting rods (332) are located at the bottom and top of the front end of the screw connecting sleeve (331), respectively. The end of the connecting rod (332) near the lens limiting arm (341) is inclined, and the vertical projection angle between the two connecting rods (332) is 30°.

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