A vr coated lens film strength testing machine

Abstract

The application belongs to the technical field of lens testing, and provides a VR coated lens film strength testing machine, which comprises a base, a conveying belt is arranged in the base, a plurality of groups of placing plates are arranged on the conveying belt, the placing plates are connected with the conveying belt through telescopic rods, a placing groove is formed in the surface of the placing plates away from the conveying belt, a supporting plate is fixedly installed on the middle side wall in the base, the lower surface of the placing plate is flush with the upper surface of the supporting plate when the telescopic rods are in the shortest state, a fixing frame is fixedly installed in the middle of the base, and a first telescopic piece pointing to the base is fixedly installed on the fixing frame. Compared with the prior art, the application has the following beneficial effects: the placing plates can be fixed through the supporting plate and the pressing plate, the coated lenses on the placing plates are fixed through the fixing assembly, so that the coated lenses are always in a stable state during the testing process, and the detection accuracy of the strength of the coated lenses is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lens testing, and particularly relates to a VR coated lens film strength testing machine. BACKGROUND

[0002] During lens processing, coating treatment is generally performed to increase light transmittance and reduce light reflectivity. In order to achieve a certain hardness of the lens after coating, the lens is not easy to be scratched, and the lens is effectively protected. Generally, an ultra-micro particle hardening film is added to the coating material.

[0003] After the lens is coated, the film strength of the lens needs to be inspected according to the product quality requirements. The traditional standard is to rub the lens with a standard stress pen for 50 times, and no damage or film peeling occurs, which is qualified. This checking method completely depends on the skills of employees. Sometimes, due to the poor skills of employees, the number of rubbings is not enough, which can lead to the outflow of defective lenses. In view of the above technical problems, the Chinese patent with the patent announcement number CN109297846A is used to transport and place the coated lens on the conveying belt. Then the coated lens is directly fixed and tested on the conveying belt. Since the conveying belt is mostly made of soft material, when the coated lens is stressed, the stress will be transmitted to the conveying belt, causing the deformation of the conveying belt. At this time, the placement of the coated lens is unstable, which causes the standard stress pen to not always be in contact with the coated lens, and the contact pressure between the coated lens and the standard stress pen changes, reducing the accuracy of the test. SUMMARY

[0004] The purpose of the present application is to provide a VR coated lens film strength testing machine, which aims to solve the technical problem that the standard stress pen cannot always be in contact with the coated lens in the prior art, reducing the accuracy of the test.

[0005] The present application is implemented as follows: a VR coated lens film strength testing machine, comprising a base, a conveying belt is arranged in the base, a plurality of placement plates are arranged on the conveying belt, the placement plates are connected with the conveying belt through telescopic rods, a placement groove is arranged on the surface of the placement plate away from the conveying belt, a support plate is fixedly installed on the side wall of the middle part of the base, the lower surface of the placement plate is flush with the upper surface of the support plate when the telescopic rod is in the shortest state, a fixing frame is fixedly installed in the middle part of the base, a first telescopic piece pointing to the base is fixedly installed on the fixing frame, a lifting frame is fixedly installed on the output end of the first telescopic piece, the lifting frame is U-shaped and the end part of the lifting frame is fixedly installed with a pressing plate used in cooperation with the support plate, a standard stress pen is arranged on the lifting frame, a rotary power piece is arranged on the lifting frame to drive the standard stress pen to move back and forth, and a fixing assembly is arranged in the lifting frame.

[0006] Further technical solutions: one end of the support plate is fixedly installed with a protrusion, the protrusion is arranged at an angle with the support plate and points to the conveying belt.

[0007] Further technical solutions: The second telescopic part is fixedly installed in the lifting frame and points to the base, the output end of the second telescopic part is fixedly installed with a frame-shaped mounting bracket, a sliding plate is slidingly installed on the mounting bracket, a support plate is fixedly installed on the surface of the sliding plate close to the conveying belt, a standard stress pen is fixedly installed on the support plate, and a rotary power element is fixedly installed at one end of the mounting bracket and drives the sliding plate to move.

[0008] Further technical solutions: The output end of the rotary power element is fixedly installed with a rotating disc, the rotating disc is connected with the sliding plate through a connecting plate, the connecting plate is rotationally connected with the rotating disc and the sliding plate, and the position where the connecting plate is connected with the rotating disc is located at the edge of the rotating disc.

[0009] Further technical solutions: The fixing assembly comprises a horizontal plate, the horizontal plate is fixedly installed in the mounting bracket, two groups of moving plates are slidingly installed on the horizontal plate, and a servo module for driving the two groups of moving plates to synchronously and reversely move is arranged on the horizontal plate, and a clamping plate is fixedly installed at one end of the moving plate close to the conveying belt.

[0010] Further technical solutions: The clamping plate is provided with a V-shaped structure with opposite openings, the V-shaped opening width of the clamping plate is greater than the width of the placing groove, and a gap is arranged between the clamping plate and the pressing plate when the pressing plate is in contact with the placing plate.

[0011] Further technical solutions: Two side walls of the base are fixedly installed with a bottom plate through a support rod, a first electromagnet is arranged on the bottom plate, a second electromagnet is fixedly installed on the two side walls of the base, the first electromagnet and the second electromagnet are correspondingly distributed, the first electromagnet and the second electromagnet on the same side are distributed on the upper side and the lower side of the placing plate, a permanent magnet for cooperating with the first electromagnet and the second electromagnet is fixedly installed on the placing plate, two magnetic poles of the permanent magnet are located at the upper end and the lower end, and the distribution area of the support plate is located in the distribution area of the first electromagnet and the second electromagnet.

[0012] Further technical solutions: A plurality of groups of vertically arranged vertical rods are slidingly installed on the bottom plate, the vertical rods penetrate through the bottom plate, one end of the vertical rod is fixedly connected with the first electromagnet, a plurality of groups of elastic elements are fixedly installed on the bottom plate and arranged around the vertical rods, and one end of the elastic element away from the bottom plate is fixedly connected with the end of the vertical rod.

[0013] Further technical solutions: The two side walls of the base are fixedly installed with a guide plate, the guide plate is located inside the side wall of the base and is provided with a horizontal section and an inclined section, the horizontal section of the guide plate is located in the distribution area of the first electromagnet and the second electromagnet, the inclined section of the guide plate is located outside the distribution area of the first electromagnet and the second electromagnet, the inclined section of the guide plate points to the conveying belt, a rotating rod is rotationally installed on the side surface of the placing plate, and the rotating rod is in rolling contact with the guide plate.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] 1、 through the support plate and the pressing plate can be fixed to the placement plate, through the fixed assembly on the plated lens on the placement plate is fixed, so as to ensure that the plated lens is always in stable state during the test, the standard stress pen can always keep the set pressure with the surface of the plated lens and slide contact, improve the detection accuracy of the plated lens strength.

[0016] 2、 through the first electromagnet, the second electromagnet and the permanent magnet cooperate with each other to lift the height of the placement plate, so that the height of the placement plate is higher than the support plate when moving, avoid the friction between the placement plate and the support plate during the movement, avoid the abrasion of the support plate and the placement plate, avoid the subsequent placement plate compression process to the conveying belt, avoid the elongation deformation of the conveying belt, improve the service life of the conveying belt.

[0017] 3、 through the elastic piece, the placement plate can slowly and stably descend to the support plate before testing, through the guide plate and the rotating rod cooperate, the height of the placement plate can slowly and stably descend to the lowest position after testing, avoid the impact caused by the rapid descent of the placement plate, reduce the probability of damage of the plated lens caused by impact, further improve the stability of the plated lens during testing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the present application.

[0019] Figure 2 It is the structure schematic diagram of the base inside in the present application.

[0020] Figure 3 It is the structure schematic diagram of the placement plate in the present application.

[0021] Figure 4 It is the structure schematic diagram of the fixed frame in the present application.

[0022] Figure 5 It is the structure schematic diagram of the lifting frame in the present application.

[0023] Figure 6 It is the structure schematic diagram of the first electromagnet in the present application.

[0024] In the drawings: 1, base; 2, conveying belt; 3, telescopic rod; 4, placing plate; 5, placing groove; 6, permanent magnet; 7, rotating rod; 8, supporting plate; 9, protruding block; 10, fixing frame; 11, first telescopic piece; 12, lifting frame; 13, pressing plate; 14, second telescopic piece; 15, mounting frame; 16, sliding plate; 17, rotating power piece; 18, rotating disc; 19, connecting plate; 20, supporting plate; 21, standard stress pen; 22, cross plate; 23, moving plate; 24, clamping plate; 25, servo module; 26, supporting rod; 27, bottom plate; 28, vertical rod; 29, elastic piece; 30, first electromagnet; 31, second electromagnet; 32, guide plate; 33, fixing assembly. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0026] The specific implementation of the present application will be described in detail below with reference to specific embodiments.

[0027] As Figures 1-6As shown, a VR coated lens film strength testing machine provided by the application, including base 1, the base 1 is provided with conveyor belt 2, the conveyor belt 2 is provided with multiple groups of placing plate 4, the placing plate 4 is connected with the conveyor belt 2 through telescopic rod 3, the surface of the placing plate 4 away from the conveyor belt 2 is provided with placing groove 5, the middle side wall of the base 1 is fixedly installed with support plate 8, one end of the support plate 8 is fixedly installed with lug 9, the lug 9 is arranged at an angle with the support plate 8 and the lug 9 points to the conveyor belt 2, the lower surface of the placing plate 4 is flush with the upper surface of the support plate 8 when the telescopic rod 3 is in the shortest state, the middle of the base 1 is fixedly installed with fixed frame 10, the first telescopic piece 11 pointing to the base 1 is fixedly installed on the fixed frame 10, the output end of the first telescopic piece 11 is fixedly installed with lifting frame 12, the lifting frame 12 is U-shaped and the end thereof is fixedly installed with pressing plate 13 used in cooperation with the support plate 8, the standard stress pen 21 is arranged on the lifting frame 12 and the rotating power piece 17 driving the standard stress pen 21 to reciprocate is arranged on the lifting frame 12, the second telescopic piece 14 pointing to the base 1 is fixedly installed in the lifting frame 12, the output end of the second telescopic piece 14 is fixedly installed with frame-shaped mounting bracket 15, the sliding plate 16 is slidingly installed on the mounting bracket 15, the surface of the sliding plate 16 close to the conveyor belt 2 is fixedly installed with support plate 20, the standard stress pen 21 is fixedly installed on the support plate 20, the rotating power piece 17 is fixedly installed at one end of the mounting bracket 15 and drives the sliding plate 16 to move, the output end of the rotating power piece 17 is fixedly installed with turntable 18, the turntable 18 is connected with the sliding plate 16 through connecting plate 19, the connecting plate 19 is rotatably connected with the turntable 18 and the sliding plate 16, the position of the connecting plate 19 connected with the turntable 18 is located at the edge of the turntable 18, the fixed assembly 33 is arranged in the lifting frame 12.

[0028] In actual application, the coated lens to be detected is placed in the placing groove 5 on the placing plate 4, and the placing plate 4 is moved by the conveying belt 2. When the placing plate 4 moves to the support plate 8, the movement is stopped. When the placing plate 4 moves and the height of the conveying belt 2 drops, the placing plate 4 first contacts the protrusion 9, and the placing plate 4 is moved upward by the protrusion 9, so that the placing plate 4 can move to the support plate 8. Then the first telescopic piece 11 drives the lifting frame 12 to move downward until the pressing plate 13 tightly presses the placing plate 4 on the support plate 8. After the placing plate 4 is fixed, the coated lens is fixed by the fixing assembly 33 so as to be located directly below the standard stress pen 21. Then the second telescopic piece 14 drives the mounting frame 15 to move downward, so that the nib of the standard stress pen 21 contacts the coated lens and reaches the set pressure value. During the test, the rotating power piece 17 drives the rotating disc 18 to rotate, and the rotating disc 18 drives the sliding plate 16 to reciprocate through the connecting plate 19, so that the standard stress pen 21 reciprocally slides on the surface of the coated lens. After a set time, the standard stress pen 21 completes the set number of sliding times. At this time, the second telescopic piece 14 drives the mounting frame 15 to reset, so that the standard stress pen 21 moves away from the coated lens. Then the first telescopic piece 11 drives the lifting frame 12 to reset, so that the fixing of the placing plate 4 is released. The conveying belt 2 continues to drive the placing plate 4 to move until the next group of placing plates 4 moves to the placing plate 4 and stops again. The coated lens after the test is taken down and classified. During the test of the coated lens, the placing plate 4 is fixed by the support plate 8 and the pressing plate 13, and the coated lens on the placing plate 4 is fixed by the fixing assembly 33, so as to ensure that the coated lens is in a stable state during the test, and the standard stress pen 21 can always slide in contact with the surface of the coated lens at a set pressure, thereby improving the detection accuracy of the strength of the coated lens.

[0029] In one example of the embodiment, the rotating power piece 17 is an electric motor, and of course can also be other components capable of outputting rotary power such as a hydraulic motor. The electric motor drives the standard stress pen 21 to reciprocally move. The first telescopic piece 11 and the second telescopic piece 14 are respectively a first electric telescopic rod and a second electric telescopic rod, and of course can also be other components capable of actively changing the length such as a hydraulic cylinder. The first electric telescopic rod drives the lifting frame 12 to move up and down, and the second electric telescopic rod drives the mounting frame 15 to move up and down.

[0030] As shown in Figures 1-4 The fixing assembly 33 includes a horizontal plate 22 fixedly installed in the mounting frame 15. Two groups of moving plates 23 are slidably installed on the horizontal plate 22, and a servo module 25 for driving the two groups of moving plates 23 to synchronously and reversely move is arranged on the horizontal plate 22. A clamping plate 24 is fixedly installed on one end of each moving plate 23 close to the conveying belt 2.

[0031] Specifically, the clamping plate 24 is provided with an open opposite V-shaped structure, the V-shaped opening width of the clamping plate 24 is greater than the width of the placing groove 5, and a gap is arranged between the clamping plate 24 and the pressing plate 13 when the pressing plate 13 is in contact with the placing plate 4.

[0032] In actual application, after the fixing of the placing plate 4 is completed, a gap exists between the lower surface of the clamping plate 24 and the placing plate 4, the two groups of moving plates 23 are synchronously moved to the middle by the servo module 25, the moving plates 23 drive the clamping plate 24 to move, the clamping plate 24 pushes the coated lens to move in the placing groove 5 after contacting the coated lens, and finally the two groups of clamping plates 24 are in contact with the coated lens and make the coated lens located directly below the standard stress pen 21, so that the fixing and positioning of the coated lens are realized.

[0033] As shown in Figures 1-3 , Figure 6 , a VR coated lens film strength testing machine is provided, two side walls of the base 1 are fixedly installed with the bottom plate 27 through the supporting rod 26, the first electromagnet 30 is arranged on the bottom plate 27, the second electromagnet 31 is fixedly installed on the two side walls of the base 1, the first electromagnet 30 and the second electromagnet 31 are correspondingly distributed, the first electromagnet 30 and the second electromagnet 31 on the same side are located on the upper and lower sides of the placing plate 4, the permanent magnet 6 used in cooperation with the first electromagnet 30 and the second electromagnet 31 is fixedly installed on the placing plate 4, two magnetic poles of the permanent magnet 6 are located at the upper and lower ends, and the distribution area of the supporting plate 8 is located in the distribution area of the first electromagnet 30 and the second electromagnet 31.

[0034] Specifically, a plurality of groups of vertical rods 28 are slidably installed on the bottom plate 27, the vertical rods 28 penetrate through the bottom plate 27, one end of the vertical rod 28 is fixedly connected with the first electromagnet 30, a plurality of groups of elastic members 29 are fixedly installed on the bottom plate 27 and distributed around the vertical rod 28, and one end of the elastic member 29 away from the bottom plate 27 is fixedly connected with the end of the vertical rod 28.

[0035] Specifically, the guide plate 32 is fixedly installed on the two side walls of the base 1, the guide plate 32 is located inside the side wall of the base 1 and is provided with a horizontal section and an inclined section, the horizontal section of the guide plate 32 is located in the distribution area of the first electromagnet 30 and the second electromagnet 31, the inclined section of the guide plate 32 is located outside the distribution area of the first electromagnet 30 and the second electromagnet 31, the inclined section of the guide plate 32 points to the conveying belt 2, the placing plate 4 is rotatably installed with the rotating rod 7 on the side surface, and the rotating rod 7 is in rolling contact with the guide plate 32.

[0036] In actual application, the first electromagnet 30 and the second electromagnet 31 are powered during testing. When the placement plate 4 moves to make the permanent magnet 6 enter the distribution area of the first electromagnet 30 and the second electromagnet 31, the magnetic poles of the first electromagnet 30 and the second electromagnet 31 that are close to the permanent magnet 6 after being powered are the same as the magnetic poles of the permanent magnet 6 itself. The pushing force of the second electromagnet 31 on the permanent magnet 6 is weaker than the pushing force of the first electromagnet 30 on the permanent magnet 6. Therefore, under the magnetic force of the first electromagnet 30 and the second electromagnet 31, the placement plate 4 is lifted upward by a set distance, so that the height of the placement plate 4 is higher than the height of the support plate 8. The placement plate 4 keeps moving. When the placement plate 4 moves above the support plate 8, the lifting frame 12 moves downward to make the pressing plate 13 contact the placement plate 4. Then the pressing plate 13 pushes the placement plate 4 to move downward until the placement plate 4 is pressed on the support plate 8. When the placement plate 4 moves downward, the first electromagnet 30 is pushed downward by the permanent magnet 6 and the elastic member 29 is stretched. At this time, the placement plate 4 can be stably placed and fixed on the support plate 8. After the subsequent test is completed, the pressing plate 13 moves upward, and the first electromagnet 30 is reset under the action of the elastic member 29. At this time, the placement plate 4 is separated from the support plate 8 again. Then the placement plate 4 continues to move. When the placement plate 4 moves to the back side of the first electromagnet 30, the rotating rod 7 contacts the guide plate 32. With the continuous movement of the placement plate 4, the permanent magnet 6 is separated from the distribution area of the first electromagnet 30. When the permanent magnet 6 is separated from the distribution area of the first electromagnet 30, the rotating rod 7 moves to the connection position of the inclined section and the horizontal section of the guide plate 32. The subsequent movement of the placement plate 4 makes the height of the placement plate 4 slowly decrease to the lowest position under the action of the rotating rod 7 and the guide plate 32. The height of the placement plate 4 is lifted by the cooperation of the first electromagnet 30, the second electromagnet 31 and the permanent magnet 6, so that the height of the placement plate 4 during movement is higher than the height of the support plate 8. This avoids the friction between the placement plate 4 and the support plate 8 during movement, avoids the wear of the support plate 8 and the placement plate 4, avoids the application of force to the conveying belt 2 during the pressing process of the placement plate 4, avoids the elongation and deformation of the conveying belt 2, improves the service life of the conveying belt 2, and slowly and stably lowers the placement plate 4 to the support plate 8 before testing through the elastic member 29. The height of the placement plate 4 can stably and slowly decrease to the lowest position after testing through the cooperation of the guide plate 32 and the rotating rod 7, which avoids the impact caused by the rapid descent of the placement plate 4, reduces the probability of damage of the coated lens caused by impact, and further improves the stability of the coated lens during testing.

[0037] In an example of the present application, the elastic member 29 is a spring, which can also be a spring ball or other elastic component. The spring is compressed to apply a pushing force to the first electromagnet 30, so that the placement plate 4 is stably lowered and reset.

[0038] The above merely describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0039] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A VR coated lens film strength tester machine comprising a base (1), characterized in that, The base (1) is provided with a conveying belt (2), a plurality of groups of placing plates (4) are arranged on the conveying belt (2), the placing plates (4) are connected with the conveying belt (2) through telescopic rods (3), the surface of the placing plates (4) away from the conveying belt (2) is provided with a placing groove (5), a supporting plate (8) is fixedly installed on the middle side wall in the base (1), the lower surface of the placing plate (4) is flush with the upper surface of the supporting plate (8) when the telescopic rod (3) is in the shortest state, a fixed frame (10) is fixedly installed in the middle of the base (1), a first telescopic piece (11) pointing to the base (1) is fixedly installed on the fixed frame (10), a lifting frame (12) is fixedly installed at the output end of the first telescopic piece (11), the lifting frame (12) is U-shaped and the end portion thereof is fixedly installed with a pressing plate (13) used in cooperation with the supporting plate (8), a standard stress pen (21) is arranged on the lifting frame (12), a rotating power piece (17) driving the standard stress pen (21) to move back and forth is arranged on the lifting frame (12), and a fixing assembly (33) is arranged in the lifting frame (12). The base (1) is provided with a conveying belt (2), a plurality of groups of placing plates (4) are arranged on the conveying belt (2), the placing plates (4) are connected with the conveying belt (2) through telescopic rods (3), the surface of the placing plates (4) away from the conveying belt (2) is provided with a placing groove (5), a supporting plate (8) is fixedly installed on the middle side wall in the base (1), the lower surface of the placing plate (4) is flush with the upper surface of the supporting plate (8) when the telescopic rod (3) is in the shortest state, a fixed frame (10) is fixedly installed in the middle of the base (1), a first telescopic piece (11) pointing to the base (1) is fixedly installed on the fixed frame (10), a lifting frame (12) is fixedly installed at the output end of the first telescopic piece (11), the lifting frame (12) is U-shaped and the end portion thereof is fixedly installed with a pressing plate (13) used in cooperation with the supporting plate (8), a standard stress pen (21) is arranged on the lifting frame (12), a rotating power piece (17) driving the standard stress pen (21) to move back and forth is arranged on the lifting frame (12), and a fixing assembly (33) is arranged in the lifting frame (12). The base (1) is provided with a conveying belt (2), a plurality of groups of placing plates (4) are arranged on the conveying belt (2), the placing plates (4) are connected with the conveying belt (2) through telescopic rods (3), the surface of the placing plates (4) away from the conveying belt (2) is provided with a placing groove (5), a supporting plate (8) is fixedly installed on the middle side wall in the base (1), the lower surface of the placing plate (4) is flush with the upper surface of the supporting plate (8) when the telescopic rod (3) is in the shortest state, a fixed frame (10) is fixedly installed in the middle of the base (1), a first telescopic piece (11) pointing to the base (1) is fixedly installed on the fixed frame (10), a lifting frame (12) is fixedly installed at the output end of the first telescopic piece (11), the lifting frame (12) is U-shaped and the end portion thereof is fixedly installed with a pressing plate (13) used in cooperation with the supporting plate (8), a standard stress pen (21) is arranged on the lifting frame (12), a rotating power piece (17) driving the standard stress pen (21) to move back and forth is arranged on the lifting frame (12), and a fixing assembly (33) is arranged in the lifting frame (12).

2. The VR coated lens film strength tester of claim 1, wherein, The base (1) is provided with a conveying belt (2), a plurality of groups of placing plates (4) are arranged on the conveying belt (2), the placing plates (4) are connected with the conveying belt (2) through telescopic rods (3), the surface of the placing plates (4) away from the conveying belt (2) is provided with a placing groove (5), a supporting plate (8) is fixedly installed on the middle side wall in the base (1), the lower surface of the placing plate (4) is flush with the upper surface of the supporting plate (8) when the telescopic rod (3) is in the shortest state, a fixed frame (10) is fixedly installed in the middle of the base (1), a first telescopic piece (11) pointing to the base (1) is fixedly installed on the fixed frame (10), a lifting frame (12) is fixedly installed at the output end of the first telescopic piece (11), the lifting frame (12) is U-shaped and the end portion thereof is fixedly installed with a pressing plate (13) used in cooperation with the supporting plate (8), a standard stress pen (21) is arranged on the lifting frame (12), a rotating power piece (17) driving the standard stress pen (21) to move back and forth is arranged on the lifting frame (12), and a fixing assembly (33) is arranged in the lifting frame (12).

3. The VR coated lens film strength tester of claim 1, wherein, ​ 4. The VR coated lens film strength tester of claim 3, wherein, The output end of the rotating power element (17) is fixedly provided with a rotating disc (18), the rotating disc (18) is connected with the sliding plate (16) through a connecting plate (19), the connecting plate (19) is rotatably connected with the rotating disc (18) and the sliding plate (16), and the position, where the connecting plate (19) is connected with the rotating disc (18), is located at the edge of the rotating disc (18).

5. The VR coated lens film strength tester of claim 1, wherein, The fixing assembly (33) comprises a horizontal plate (22) fixedly arranged in the mounting frame (15), two groups of moving plates (23) slidably arranged on the horizontal plate (22), and a servo module (25) arranged on the horizontal plate (22) and used for driving the two groups of moving plates (23) to move reversely synchronously, and the moving plate (23) is fixedly provided with a clamping plate (24) at one end close to the conveying belt (2).

6. The VR coated lens film strength tester of claim 5, wherein, The clamping plate (24) is provided with a V-shaped structure with opposite openings, the V-shaped opening width of the clamping plate (24) is greater than the width of the placing groove (5), and a gap is arranged between the clamping plate (24) and the pressing plate (13) when the pressing plate (13) is in contact with the placing plate (4).

7. The VR coated lens film strength tester of claim 1, wherein, The base (1) is provided with a guide plate (32) fixedly arranged on each side wall, the guide plate (32) is arranged inside the side wall of the base (1) and is provided with a horizontal section and an inclined section, the horizontal section of the guide plate (32) is located in the distribution area of the first electromagnet (30) and the second electromagnet (31), the inclined section of the guide plate (32) is located outside the distribution area of the first electromagnet (30) and the second electromagnet (31), the inclined section of the guide plate (32) points to the conveying belt (2), and the placing plate (4) is rotatably provided with a rotating rod (7) on the side surface, and the rotating rod (7) is in rolling contact with the guide plate (32).

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