A flexible lens bending device

Abstract

The utility model discloses a flexible lens bending device, including base and being located on the distance adjusting device of base, one side of distance adjusting device is equipped with moving device, and moving device is matched through the eccentric position cooperation of connecting rod and carousel, and is equipped with the buffer chuck device for clamping flexible lens on distance adjusting device and moving device, the utility model can simulate the dynamic bending working condition in the actual use of different flexible lenses, and effectively verifies the bending resistance of flexible lens.

Description

Technical Field

[0001] This utility model relates to the field of flexible lens device technology, and in particular to a flexible lens bending device. Background Technology

[0002] In the field of flexible optical lenses, TPU flexible lenses are widely used in gas masks due to their high elasticity, impact resistance, and biocompatibility. Based on the usage and function of gas masks, the design of the eye area is crucial. Appropriate lens structure, size, and materials can improve the protective performance, optical performance, wearing comfort, visibility, and other aspects of the gas mask. To verify whether lens materials will crack after repeated bending under specific conditions, bending tests are often required. To ensure the visibility performance of gas masks, lenses often employ an anti-fog coating design; bending tests can also verify the stability of this anti-fog coating. Currently, bending tests for lenses often involve manual bending to check for cracks. The number of bends and the speed cannot guarantee the reliability of the test. Existing general-purpose bending machines have a fixed bending radius, which cannot adapt to the diverse testing needs of flexible lenses. Furthermore, the rigid clamps used in many bending machines are prone to damaging flexible lenses. Therefore, a bending device needs to be designed that allows for adjustable bending numbers and speeds, ensuring the flexible lenses remain undamaged and meeting diverse testing requirements. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a flexible lens bending device that ensures that the number of bends and the speed of bending are adjustable, ensures that the flexible lens is not damaged, and meets diverse testing needs.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a flexible lens bending device, including a base and an adjusting device disposed on the base, a moving device is provided on one side of the adjusting device, the moving device is engaged with the eccentric position of the turntable through a connecting rod, and a buffer clamping device for clamping the flexible lens is provided on the adjusting device and the moving device.

[0005] Preferably, the adjusting device includes a bracket fixedly connected to the base, a stud rotatably connected to the bracket, one end of the stud being fixedly connected to a rotating handle, an adjusting block with threaded engagement on the surface of the stud, and a buffer chuck device installed on the top of the adjusting block.

[0006] Preferably, a guide rod is provided below the stud, the surface of the guide rod slides in conjunction with the inside of the adjusting block, and both ends of the guide rod are fixed to the bracket.

[0007] Preferably, the moving device includes a slide rail fixedly connected to the base, the slide rail slidingly engaging with the slider, a moving block mounted on the slider, and a buffer clamp device mounted on the top of the moving block.

[0008] Preferably, the buffer chuck device includes a mounting plate, with a vertical plate and a baffle respectively mounted vertically at both ends of the top of the mounting plate. A threaded rod with threaded engagement is threaded through the vertical plate, and a pressure plate with engagement with the baffle is provided at one end of the threaded rod.

[0009] Preferably, the other end of the threaded rod is provided with an operating handle.

[0010] Preferably, a bearing is provided at the position where the end of the threaded rod connects to the pressure plate.

[0011] Preferably, the top of the slider is connected to the bottom of the moving block via a connecting plate, the connecting shaft at one end of the connecting rod is rotatably connected to one end of the connecting plate via a rotating bearing, and the connecting shaft at the other end of the connecting rod is rotatably connected to the surface of the turntable via a rotating bearing; the center of the turntable is connected to the servo motor inside the base via a rotating shaft.

[0012] Preferably, a bending count measuring device is provided below the turntable.

[0013] Preferably, a controller for controlling the rotation speed of the turntable is installed on the front side of the base, and the controller is equipped with a speed adjustment knob.

[0014] The beneficial effects of this utility model are:

[0015] (1) The flexible lens bending device provided by this utility model is specifically used for bending life testing of flexible lenses, which overcomes the problems of rigid clamping damage to flexible optical elements, bending trajectory not conforming to actual working conditions, and insufficient adaptability of traditional general bending equipment.

[0016] (2) This utility model adopts a crank connecting rod plus eccentric wheel composite transmission structure to accurately control the bending angle, frequency and reciprocating trajectory, simulate the dynamic bending conditions in actual use of flexible lenses, and ensure test consistency.

[0017] (3) This utility model can simulate the dynamic bending conditions of different flexible lenses in actual use, and effectively verify the bending resistance of flexible lenses. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a flexible lens bending device;

[0019] Figure 2 for Figure 1 A front view structural diagram;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure after installing the flexible lens;

[0021] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure;

[0022] Figure 5 This is a schematic diagram of the buffer clamp device on the adjusting device.

[0023] Figure 6 This is a schematic diagram of the buffer clamp device on the mobile device. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-6 As shown, a flexible lens bending device includes a base 1 and an adjusting device 2 disposed on the base 1. A moving device 3 is provided on one side of the adjusting device 2. The moving device 3 is engaged with the turntable 6 at an eccentric position via a connecting rod 5. A buffer chuck device 4 for clamping the flexible lens is provided on the adjusting device 2 and the moving device 3.

[0026] Preferably, the adjusting device 2 includes a bracket 2-1 fixedly connected to the base 1. A stud 2-2 is rotatably connected to the bracket 2-1. One end of the stud 2-2 is fixedly connected to a rotating handle 2-3. An adjusting block 2-4 with a threaded engagement is provided on the surface of the stud 2-2. A buffer chuck device 4 is installed on the top of the adjusting block 2-4. In this embodiment, when the stud 2-2 is rotated by rotating the handle 2-3, the adjusting block 2-4 can be moved, thereby adjusting the distance between the two buffer chuck devices 4. This allows for adaptive adjustment according to different flexible lens sizes and also adjusts the bending degree of the flexible lens. In this embodiment, the adjustment range of the adjustment block 2-4 is 10-150mm. After the flexible lens is installed on the two buffer clamp devices 4, the bending degree of the flexible lens can be changed by the adjustment block 2-4, so that its bending radius is continuously adjustable from 0-100mm, ensuring that lenses or gas mask bodies of different sizes and shapes can be bent. With the help of the servo motor driving the turntable, the bending angle (0~180°) can be precisely controlled to adapt to the curvature test of different flexible lenses.

[0027] Preferably, a guide rod 2-5 is provided below the stud 2-2, the surface of the guide rod 2-5 is in sliding fit with the inside of the adjusting block 2-4, and both ends of the guide rod 2-5 are fixed to the bracket 2-1. The guide rod 2-5 makes the movement of the adjusting block 2-4 more stable.

[0028] Preferably, the moving device 3 includes a slide rail 3-1 fixedly connected to the base 1. The slide rail 3-1 is slidably engaged with the slider 3-2. A moving block 3-3 is mounted on the slider 3-2, and a buffer clamp device 4 is mounted on the top of the moving block 3-3. In this embodiment, when the turntable 6 rotates, the moving block 3-3 and the slider 3-2 can be driven to reciprocate on the slide rail 3-1 by the connecting rod 5.

[0029] Preferably, the buffer chuck device 4 includes a mounting plate 4-1, with a vertical plate 4-2 and a baffle 4-3 vertically mounted at both ends of the top of the mounting plate 4-1. A threaded rod 4-4, threadedly engaged with the vertical plate 4-2, is threaded through the vertical plate 4-2, and a pressure plate 4-5, engaging with the baffle 4-3, is provided at one end of the threaded rod 4-4. In this embodiment, the mounting plate 4-1 of one buffer chuck device 4 is fixedly connected to the moving block 3-3, and the mounting plate 4-1 of the other buffer chuck device 4 is fixedly connected to the adjusting block 2-4.

[0030] In this embodiment, the buffer chuck device 4 is an adaptive flexible clamp. The clamping ends (i.e., the surfaces of the pressure plate 4-5 and the baffle 4-3) can be further padded with silicone to avoid rigid contact damage to the lens. The spacing between the entire clamping ends can be adjusted by bolts to accommodate flexible lenses of different sizes and curvatures, thus expanding the testing range.

[0031] Preferably, the other end of the threaded rod 4-4 is provided with an operating handle 4-6. In this embodiment, when the threaded rod 4-4 is rotated by the operating handle 4-6, the threaded rod 4-4 will move axially, thereby pushing the pressure plate 4-5 closer to or away from the baffle 4-3, thereby clamping or releasing the flexible lens.

[0032] Preferably, a bearing is provided at the connection point between the end of the threaded rod 4-4 and the pressure plate 4-5. With this design, when the threaded rod 4-4 rotates, the pressure plate 4-5 will not rotate accordingly.

[0033] Preferably, the top of the slider 3-2 is connected to the bottom of the moving block 3-3 via a connecting plate 3-4, the connecting shaft at one end of the connecting rod 5 is rotatably connected to one end of the connecting plate 3-4 via a rotating bearing, and the connecting shaft at the other end of the connecting rod 5 is rotatably connected to the surface of the turntable 6 via a rotating bearing; the center of the turntable 6 is connected to a servo motor inside the base 1 via a rotating shaft. In this embodiment, when the servo motor is working, it can drive the turntable 6 to rotate, thereby driving the connecting rod 5 to swing, ultimately causing the moving block 3-3 to reciprocate along the slide rail 3-1.

[0034] Preferably, a bending count measuring device 7 is provided below the turntable 6. In this embodiment, the bending count measuring device 7 can measure the number of rotations of the turntable 6.

[0035] Preferably, a controller 8 for controlling the rotation speed of the turntable 6 is installed on the front side of the base 1, and the controller 8 is provided with a speed adjustment knob 8-1.

[0036] The working principle of this embodiment is as follows:

[0037] When the stud 2-2 is rotated by turning the handle 2-3, the adjusting block 2-4 can be moved, thereby adjusting the distance between the two buffer chuck devices 4. This allows for adaptive adjustment according to different flexible lens sizes and the degree of bending of the flexible lens. The flexible lens is then mounted onto the two buffer chuck devices 4. Specifically, rotating the threaded rod 4-4 by operating the handle 4-6 causes the threaded rod 4-4 to move axially, pushing the pressure plate 4-5 closer to the baffle 4-3, thus clamping the flexible lens. When the servo motor is working, it can drive the turntable. Rotation of 6 causes the connecting rod 5 to swing, ultimately causing the moving block 3-3 to reciprocate along the slide rail 3-1. During the reciprocating movement of the moving block 3-3, the buffer clamp device 4 on the moving block 3-3 also reciprocates, ultimately allowing the flexible lens to bend periodically. Each rotation of the turntable results in one bending of the flexible lens. The bending count metering device 7 can record the number of bending times in real time, while the speed adjustment knob 8-1 on the controller 8 can control the power of the servo motor and change the rotation speed of the turntable 6. When the number of bending times is reached, the device stops operating.

[0038] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A flexible lens bending device, comprising a base (1) and an adjustment device (2) disposed on the base (1), characterized in that, The adjusting device (2) is provided with a moving device (3) on one side. The moving device (3) is connected to the turntable (6) at an eccentric position via a connecting rod (5). The adjusting device (2) and the moving device (3) are provided with a buffer clamp device (4) for clamping the flexible lens.

2. The flexible lens bending device according to claim 1, characterized in that, The adjusting device (2) includes a bracket (2-1) fixedly connected to the base (1). A stud (2-2) is rotatably connected to the bracket (2-1). One end of the stud (2-2) is fixedly connected to the rotating handle (2-3). The surface of the stud (2-2) is provided with an adjusting block (2-4) that is threadedly engaged with it. A buffer chuck device (4) is installed on the top of the adjusting block (2-4).

3. The flexible lens bending device according to claim 2, characterized in that, A guide rod (2-5) is provided below the stud (2-2). The surface of the guide rod (2-5) slides in conjunction with the inside of the adjusting block (2-4). Both ends of the guide rod (2-5) are fixed on the bracket (2-1).

4. The flexible lens bending device according to claim 1, characterized in that, The moving device (3) includes a slide rail (3-1) fixedly connected to the base (1), the slide rail (3-1) and the slider (3-2) are slidably engaged, a moving block (3-3) is installed on the slider (3-2), and a buffer clamp device (4) is installed on the top of the moving block (3-3).

5. A flexible lens bending device according to claim 2 or 4, characterized in that, The buffer chuck device (4) includes a mounting plate (4-1). A vertical plate (4-2) and a baffle (4-3) are vertically mounted at both ends of the top of the mounting plate (4-1). A threaded rod (4-4) that is threaded to the vertical plate (4-2) is provided inside the vertical plate (4-2). A pressure plate (4-5) that is threaded to the baffle (4-3) is provided at one end of the threaded rod (4-4).

6. A flexible lens bending device according to claim 5, characterized in that, The other end of the threaded rod (4-4) is provided with an operating handle (4-6).

7. A flexible lens bending device according to claim 5, characterized in that, A bearing is provided at the position where the end of the threaded rod (4-4) connects to the pressure plate (4-5).

8. A flexible lens bending device according to claim 4, characterized in that, The top of the slider (3-2) is connected to the bottom of the moving block (3-3) via the connecting plate (3-4). The connecting shaft at one end of the connecting rod (5) is rotatably connected to one end of the connecting plate (3-4) via a rotating bearing. The connecting shaft at the other end of the connecting rod (5) is rotatably connected to the surface of the turntable (6) via a rotating bearing. The center of the turntable (6) is connected to the servo motor inside the base (1) via a rotating shaft.

9. A flexible lens bending device according to claim 1, characterized in that, A bending count measuring device (7) is provided below the turntable (6).

10. A flexible lens bending device according to claim 1, characterized in that, The base (1) is equipped with a controller (8) for controlling the rotation speed of the turntable (6) on the front side, and the controller (8) is provided with a speed adjustment knob (8-1).

Images