Device for detecting wear resistance of optical coated lens

Abstract

The utility model relates to the technical field of detection devices, and discloses an optical coated lens wear resistance detection device which comprises a detection table used for fixing a lens to be detected, the detection table is provided with a clamping cavity, a friction head capable of rotating is arranged in the clamping cavity, an air pressure cavity is formed in the friction head, and the air pressure cavity is communicated with the clamping cavity. The top side of the friction head is open, a drum membrane is arranged on the top side of the friction head in a sealed mode, steel wool wraps the drum membrane, an air pump is fixedly arranged on the bottom side of the friction head, and the air pump communicates with the air pressure cavity through an air pipe; and the pressing assembly is arranged on one side of the detection table, and the pressing assembly can extend downwards to apply different pressures to the to-be-detected lens fixed on the detection table. According to the utility model, the tympanic membrane expands towards one side of the lens under the action of air pressure, so that the friction head is always attached in the rotating process, and the accuracy of wear resistance detection is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to detection device technical field relates to a kind of optical coating lens abrasion resistance detection device. BACKGROUND

[0002] In use, lens is inevitably contaminated and dusted, so lens needs to be wiped frequently, and the wiping process will rub the lens, causing damage to the lens surface, so the abrasion resistance of the lens is an important indicator to judge the quality of the lens. Therefore, abrasion resistance test needs to be conducted on the surface of the lens.

[0003] The existing test equipment has the following problems: the existing technology uses steel wool reciprocating to scrape the lens to simulate lens wear, but when facing arc-shaped lenses, the reciprocating structure is difficult to completely fit the lens when rising and falling along the arc surface, resulting in uneven local scraping, making it difficult to determine whether the local abrasion resistance is high or the contact force is insufficient. UTILITY MODEL CONTENTS

[0004] (I) Utility model purpose

[0005] The utility model aims to provide an optical coating lens abrasion resistance detection device to improve detection accuracy.

[0006] (II) Technical solution

[0007] To solve the above technical problems, the utility model provides an optical coating lens abrasion resistance detection device, comprising:

[0008] A detection table for fixing the lens to be tested is provided with a clamping cavity, a friction head capable of rotating is arranged in the clamping cavity, a gas pressure cavity is arranged in the friction head, a tympanic membrane is sealingly arranged on the top side of the friction head, steel wool is coated on the tympanic membrane, a gas pump is fixedly arranged on the bottom side of the friction head, and the gas pump is connected to the gas pressure cavity through a gas pipe; and

[0009] A pressing assembly is arranged on one side of the detection table, and the pressing assembly can be elongated downward to apply different sizes of pressure to the lens to be tested fixed on the detection table.

[0010] Optionally, the detection table includes a cylindrical table body, and the inner circular bottom of the table body is provided with a motor for driving the friction head to rotate.

[0011] Optionally, the clamping cavity of the detection table is provided with a clamping assembly for clamping the lens to be tested and an ejection assembly for ejecting the lens to be tested out of the clamping cavity, the clamping assembly and the ejection assembly are arranged in a circumferential array on the detection table, and the clamping assembly and the ejection assembly are arranged alternately.

[0012] Optionally, the clamping assembly comprises:

[0013] a first shaft rod arranged on the side wall of the detection table and slidingly extending along the radial direction of the detection table, one end of the first shaft rod being arranged with a first end head;

[0014] an inner clamping plate fixed to one end of the first shaft rod inside the detection table, and one side of the inner clamping plate facing the center of the detection table being provided with an inclined guide surface and a vertically clamping surface connected thereto, wherein the inclined guide surface is inclined from the side of the first shaft rod to the center of the detection table from top to bottom; and

[0015] a first spring sleeved on the outer end of the first shaft rod and abutting against the first end head and the detection table.

[0016] Optionally, the ejection assembly comprises:

[0017] a second shaft rod arranged on the side wall of the detection table and slidingly extending along the radial direction of the detection table, one end of the second shaft rod being arranged with an end head;

[0018] an ejection plate fixed to one end of the second shaft rod inside the detection table, and the ejection plate being a right-angled triangular plate, the inclined surface of the right-angled triangular plate facing one side of the center of the detection table, and the inclined surface being inclined from the side of the first shaft rod to the center of the detection table from top to bottom; and

[0019] a second spring sleeved on the outer end of the second shaft rod and abutting against the end head and the detection table.

[0020] Optionally, the pressing assembly comprises a guide rail and a sliding block, the sliding block being provided with a cross beam, the cross beam being provided with a digital thrust meter, and the digital thrust meter being provided with a pressing plate at the end thereof.

[0021] Optionally, the pressing plate has an arc-shaped inner concave surface.

[0022] Optionally, the eardrum is fixed to a threaded cover body, the threaded cover body being threadedly connected to the friction head, and the gap between the threaded cover body and the friction head being coated with sealing glue.

[0023] (Three) beneficial effects

[0024] The optical coating lens wear resistance detection device provided by the technical scheme has the advantages that the lens to be detected is fixed in the clamping cavity of the detection table, the pressing assembly is moved downward to be attached to the lens to be detected, gas is injected into the air pressure cavity, the eardrum expands to the side of the lens under the action of the air pressure, the eardrum is adapted to the shape of the lens and attached to the lens, the steel wool cloth wrapped around the friction head can be completely attached to the curved surface of the lens, different pressures are applied to the lens by the pressing assembly, then the lens surface is completely rubbed by rotating the friction head to drive the steel wool cloth to rotate, the soft eardrum changes at any time during the rotation process to keep being attached to the lens, and the accuracy of the wear resistance detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A structural schematic view of an optical coating lens wear resistance detection device provided by the embodiment of the present application under one visual angle;

[0026] Figure 2 An internal structural schematic view of the optical coating lens wear resistance detection device provided by the embodiment of the present application;

[0027] Figure 3 A structural schematic view of a clamping assembly;

[0028] Figure 4 A structural schematic view of an ejection assembly.

[0029] Explanation of reference numerals in the drawings: 1-base, 2-detection table, 3-clamping cavity, 4-motor, 5-friction head, 6-eardrum, 7-threaded cover body, 8-air pump, 9-air pipe, 10-guide rail, 11-sliding seat, 12-cross beam, 13-digital display thrust meter, 14-pressing plate, 15-clamping assembly, 1501-first shaft rod, 1502-inner clamping plate, 1503-inclined guide surface, 1504-vertical clamping surface, 1505-first spring, 1506-first end head, 16-ejection assembly, 1601-second shaft rod, 1602-ejection plate, 1603-inclined surface, 1604-second spring, 1605-second end head. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] It should be noted that all directional indications, such as upper, lower, left, right, front, back, and the like, are used to describe the relative positions between the components shown in the figures and the movement conditions of the components, and the directional indications change accordingly if the specific posture changes.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, if the present application has a description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. For example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed in the present application.

[0034] Referring to the drawings Figures 1 to 2 As shown in the drawings, the wear resistance detection device of the optical coating lens of the embodiment comprises a detection table 2 and a pressing assembly; the detection table 2 is used for fixing the lens to be tested, and the pressing assembly is used for applying different sizes of pressure to the lens to be tested. The detection table 2 and the pressing assembly are fixed on the same base 1.

[0035] The detection table 2 comprises a cylindrical table body, the table body is vertically fixed and provided with a clamping cavity 3 along the axial direction, a motor 4 is arranged at the bottom of the table body in the clamping cavity 3, the output end of the motor 4 is upwardly and fixedly connected with a friction head 5, the friction head 5 is provided with a top-open air pressure cavity, a tympanic membrane 6 is sealingly arranged at the open side of the air pressure cavity, the tympanic membrane 6 is fixed on a threaded cover body 7, the threaded cover body 7 is threadedly connected with the friction head 5, and the gap between the threaded cover body 7 and the friction head 5 is coated with sealing glue, the tympanic membrane 6 is glued and covered with steel wire cloth, the bottom side of the friction head 5 is fixedly provided with an air pump 8, the air pump 8 rotates synchronously with the friction head 5, and the air pump 8 is communicated with the air pressure cavity through an air pipe 9. As can be imagined, air is injected into the air pressure cavity through the air pump 8, the tympanic membrane 6 gradually bulges as the pressure in the air pressure cavity increases, and after the lens to be detected is fixed in the clamping cavity 3, the bulging tympanic membrane 6 can well adhere to the lens to be detected under the pressure of the pressing assembly, so that the rotating friction head 5 can polish the arc-shaped concave surface of the lens to be detected.

[0036] In the embodiment, the pressing assembly is arranged on one side of the detection table 2 and comprises a guide rail 10 and a sliding block. The guide rail 10 is vertically arranged, and the guide rail 10 and the sliding block are only two sub-components of a conventional linear guide rail 10 structure. Of course, the linear guide rail 10 structure also comprises a power mechanism for driving the sliding block to move and other structures, and the linear guide rail 10 will not be described in detail here. In the above, the sliding block is fixedly provided with a cross beam 12, the cross beam 12 is provided with a digital display thrust meter 13, the end of the digital display thrust meter 13 is provided with a pressing plate 14, and the bottom surface of the pressing plate 14 has an arc-shaped inner concave surface so as to be attached to the arc-shaped convex surface of the lens to be detected. As can be imagined, in the specific detection process, the digital display thrust meter 13 is driven to move downward by the downward movement of the sliding block, so that the pressing plate 14 is in contact with the lens to be detected, and the lens to be detected is subjected to pressure by the movement of the sliding block, and the pressure is displayed by the digital display thrust meter 13, so as to complete the wear resistance test of the lens under different pressures.

[0037] In order to be able to fix the lens to be detected in the clamping cavity 3 and conveniently take out the lens to be detected after the test is completed, as shown in Figure 1 and Figure 2 , the clamping cavity 3 of the detection table 2 is provided with a clamping assembly 15 for clamping the lens to be detected and an ejection assembly 16 for ejecting the lens to be detected out of the clamping cavity 3, the clamping assembly 15 and the ejection assembly 16 are arranged in a circumferential array on the detection table 2, and the clamping assembly 15 and the ejection assembly 16 are alternately arranged.

[0038] , the clamping cavity 3 of the detection table 2 is provided with a clamping assembly 15 for clamping the lens to be detected and an ejection assembly 16 for ejecting the lens to be detected out of the clamping cavity 3, the clamping assembly 15 and the ejection assembly 16 are arranged in a circumferential array on the detection table 2, and the clamping assembly 15 and the ejection assembly 16 are alternately arranged. Figure 3As shown, the clamping assembly 15 includes a first shaft 1501, an inner clamping plate 1502 and a first spring 1505. The side wall of the detection table 2 is provided with a guide hole in the radial direction. The first shaft 1501 is inserted into the guide hole and slides in the guide hole. The first end of the first shaft 1501 located outside the detection table 2 is provided with a first end head 1506. The inner clamping plate 1502 is fixed to the end of the first shaft 1501 located inside the detection table 2. The side of the inner clamping plate 1502 facing the center of the detection table 2 has an inclined guide surface 1503 and a vertically clamping surface 1504 connected thereto. The inclined guide surface 1503 is inclined from the side of the first shaft 1501 to the center of the detection table 2 from top to bottom. The first spring 1505 is sleeved on the outer end of the first shaft 1501 and abuts against the first end head 1506 and the detection table 2.

[0039] Referring to Figure 4 As shown, the ejection assembly 16 includes a second shaft 1601, an ejection plate 1602 and a second spring 1604. The second shaft 1601 is inserted into the guide hole and is arranged alternately with the first shaft 1501. The second shaft 1601 slides in the guide hole. The end of the second shaft 1601 located outside the detection table 2 is provided with a second end head 1605. The ejection plate 1602 is fixed to the end of the second shaft 1601 located inside the detection table 2. The ejection plate 1602 is a right-angled triangular plate. The inclined surface 1603 of the right-angled triangular plate faces the center of the detection table 2. The inclined surface 1603 is inclined from the side of the first shaft 1501 to the center of the detection table 2 from top to bottom. The second spring 1604 is sleeved on the outer end of the second shaft 1601 and abuts against the second end head 1605 and the detection table 2.

[0040] The lens to be tested is placed in the clamping cavity 3. Since the first shaft 1501 and the second shaft 1601 are extended to the inside of the detection center in the initial state, the lens to be tested is placed on the inclined guide surface 1503 and the inclined surface 1603 after being placed. The inclined angle of the inclined surface 1603 and the inclined guide surface 1503 is the same. Under the pressing action of the pressing assembly, the inner clamping plate 1502 and the ejection plate 1602 are retracted outward until the lens to be tested is pushed down to be attached to the vertically clamping surface 1504. At this time, the vertically clamping surface 1504 is used to clamp the lens to be tested, and the expanded eardrum 6 and the pressing plate 14 are used to limit the lens to be tested upward and downward, so as to complete the fixation of the lens to be tested. When the test is completed, the pressing assembly is lifted downward. At this time, the first spring 1505 and the second spring 1604 are reset. Since the side of the ejection plate 1602 attached to the lens to be tested is the inclined surface 1603, when the second spring 1604 is reset, the ejection plate 1602 moves inward to push the lens to be tested upward, so that the lens to be tested is ejected from the clamping cavity 3, which is convenient for taking out.

[0041] The use method and working principle of the optical coated lens wear resistance detection device of the embodiment are as follows:

[0042] Firstly, the lens to be tested is placed into the clamping cavity 3, and the inner concave side of the lens to be tested faces downward;

[0043] Then, the slider is moved downward through the linear guide rail 10, and the pressing plate 14 presses the lens to be tested to the vertical clamping surface 1504 and contacts the eardrum 6;

[0044] Then, the eardrum 6 is inflated to fully adhere to the lens to be tested by injecting gas into the air pressure cavity through the air pump 8, and the digital display thrust meter 13 is read to zero at this time;

[0045] Finally, the motor 4 is started to drive the friction head 5 to rotate, and the lens to be tested is polished, and the pressure on the lens to be tested is changed by moving the fine adjustment slider downward.

[0046] After the polishing is completed, the slider rises, the first spring 1505 and the second spring 1604 reset, and the ejection plate 1602 ejects the lens to be tested upward.

[0047] It can be seen that, in the optical coated lens wear resistance detection device, the friction head is close to the lens, the soft eardrum is adhered to the arc surface of the lens, then the air pump is used to inject gas into the air pressure cavity. Under the action of air pressure, the eardrum expands to the side of the lens, adapts to the shape of the lens and adheres to the lens, so that the steel wool cloth wrapped around the friction head can fully adhere to the arc surface of the lens, and then under the action of the motor, the friction head drives the steel wool cloth to rotate, so that the surface of the lens is fully rubbed. Because of the adaptability of the soft eardrum, it changes all the time during rotation according to the contour change, and always maintains adhesion, which increases the accuracy of wear resistance detection.

[0048] It should be noted that the air pump can be selected as a type of Haolin D23L micro air pump, the product size is 31mm*51mm*56mm, and the digital display thrust meter can be selected as a type of Xinfang FGJ-20, and the thrust range is 0-200N.

[0049] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principle of the present application, a number of improvements and deformations can be made, and these improvements and deformations should be regarded as the protection range of the present application.

Claims

1. An apparatus for detecting the wear resistance of an optical coated lens, characterized in that, The utility model relates to a lens detection device, including: a detection platform (2) and a pressing assembly; the detection platform (2) is used for fixing a lens to be detected, and the pressing assembly is used for applying different sizes of pressure to the lens to be detected; the detection platform (2) and the pressing assembly are fixed on the same base (1).

2. The optical coated lens abrasion resistance detection device of claim 1, wherein, The detection platform (2) is provided with a clamping cavity (3), a rotatable friction head (5) is arranged in the clamping cavity (3), an air pressure cavity is arranged in the friction head (5), the top side of the friction head (5) is open and is provided with a tympanic membrane (6) in a sealing mode, the tympanic membrane (6) is covered with steel wire velvet, and a gas pump (8) is fixedly arranged at the bottom side of the friction head (5); the gas pump (8) is communicated with the air pressure cavity through an air pipe (9).

3. The optical coated lens abrasion resistance detection device of claim 2, wherein, The pressing assembly is arranged on one side of the detection platform (2), and the pressing assembly can be elongated downward to apply different sizes of pressure to the lens to be detected fixed on the detection platform (2).

4. The optical coated lens abrasion resistance detection device of claim 3, wherein, The detection platform (2) comprises a cylindrical platform body, and the inner circular bottom of the platform body is provided with a motor (4) used for driving the friction head (5) to rotate.

5. The optical coated lens abrasion resistance detection device of claim 4, wherein, The clamping cavity (3) of the detection platform (2) is provided with a clamping assembly (15) used for clamping the lens to be detected and an ejection assembly (16) used for ejecting the lens to be detected out of the clamping cavity (3); the clamping assembly (15) and the ejection assembly (16) are arranged in a circumferential array on the detection platform (2), and the clamping assembly (15) and the ejection assembly (16) are arranged alternately.

6. The optical coated lens abrasion resistance detection device of claim 5, wherein, The clamping assembly (15) comprises: a first shaft rod (1501) arranged on the side wall of the detection platform (2) and slidingly telescopic along the radial direction of the detection platform (2); one end of the first shaft rod (1501) located outside the detection platform (2) is provided with a first end head (1506); an inner clamping plate (1502) fixed to one end of the first shaft rod (1501) located inside the detection platform (2); one side of the inner clamping plate (1502) facing the center of the detection platform (2) is provided with an inclined guide surface (1503) and a vertical clamping surface (1504) connected therewith; the inclined guide surface (1503) is inclined from the side of the first shaft rod (1501) to the center of the detection platform (2) from top to bottom; and a first spring (1505) sleeved on the outer end of the first shaft rod (1501) and abutting against the first end head (1506) and the detection platform (2).

7. The optical coated lens abrasion resistance detection device of claim 6, wherein, The ejection assembly (16) comprises: a second shaft rod (1601) arranged on the side wall of the detection platform (2) and slidingly telescopic along the radial direction of the detection platform (2); one end of the second shaft rod (1601) located outside the detection platform (2) is provided with a second end head (1605). A top plate (1602) is fixed to one end of the second shaft (1601) inside the detection table (2), and the top plate (1602) is a right triangle plate, the inclined surface (1603) of the right triangle plate faces one side of the center of the detection table (2), and the inclined surface (1603) is inclined from the first shaft (1501) side to the center of the detection table (2) from top to bottom, and A second spring (1604) is sleeved on the outer end of the second shaft (1601), and abuts with the second end head (1605) and the detection table (2).

8. The optical coated lens abrasion resistance detection device of claim 7, wherein, The pressing assembly comprises a guide rail (10) and a sliding block, the sliding block is provided with a cross beam (12), the cross beam (12) is provided with a digital push gauge (13), and the tail end of the digital push gauge (13) is provided with a pressing plate (14).

9. The optical coated lens abrasion resistance detection device of claim 8, wherein, The bottom surface of the pressing plate (14) has an arc-shaped concave surface.

10. The optical coated lens abrasion resistance detection device of claim 2, wherein, The eardrum (6) is fixed on the threaded cover (7), the threaded cover (7) is threadedly connected with the friction head (5), and the gap between the threaded cover (7) and the friction head (5) is coated with sealing glue.

Images