An image quality detection device of an optical lens

Abstract

The utility model discloses an image quality detection device of optical lens relates to lens quality detection technical field, including main part shell, the main part shell middle portion inner wall fixed mounting has the slide rail, the slide rail inboard wall rotationally installed has the gear ring, the inboard wall rotationally installed of gear ring has two opposite setting connecting shafts, and the fixed mounting of installation ring is installed between the opposite end of two connecting shafts, two movable support, two movable support are slidably installed in the upper and lower sides of main part shell inner wall respectively. The utility model discloses, through control electric push rod elongation or shortening, makes the installation ring with connecting shaft as the rotation center rotation to change the inclination angle of lens, to change the angle of light irradiation to lens, also can drive bevel gear rotation through starting motor, then the meshing drive of bevel gear and the tooth of gear ring upper tooth makes lens horizontal rotation, to make the scratch and the defect on lens more clearly present.

Description

Technical Field

[0001] This utility model relates to the field of lens quality testing technology, and in particular to an image quality testing device for optical lenses. Background Technology

[0002] Optical lenses are the core components of optical systems, used to focus light, form clear images, or change the optical path. They are widely used in cameras, microscopes, telescopes, medical equipment, industrial inspection, and security monitoring. During the production of optical lenses, in order to avoid the impact of scratches or dents on the lens surface on image quality, it is generally necessary to inspect the lens surface using a CCD inspection device.

[0003] In current technology, when inspecting the quality of lenses, the first step is to place the lens under a CCD high-definition camera and inspect one side first. After inspecting one side, the lens is flipped over. This results in multiple positioning actions, which affects the inspection efficiency. Secondly, for some special angles and minor lens scratches, the recognition is low. If the lens is inspected from a single angle, it is difficult to distinguish defective products, thus missing defective products. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an image quality inspection device for optical lenses. It solves the problems of multiple positioning actions caused by flipping the lens, which affects inspection efficiency; secondly, the low recognition rate of lens scratches at certain angles and of minor degree; and the difficulty in distinguishing defective products when inspecting the lens from a single angle, thus missing defective products.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An image quality detection device for an optical lens includes a main housing, a slide rail fixedly installed on the inner wall of the middle part of the main housing, a toothed ring rotatably installed on the inner side wall of the slide rail, and two opposing connecting shafts rotatably installed on the inner side wall of the toothed ring, with a mounting ring fixedly installed between the opposite ends of the two connecting shafts. Two movable brackets are slidably installed on the upper and lower sides of the inner wall of the main body shell. Adjusting rods are threaded through and threaded onto the top and bottom of the main body shell. The two adjusting rods are threaded through and threaded onto the two movable brackets. A connecting bracket is fixedly installed on the inner side wall of the toothed ring. An electric push rod is rotatably installed on the upper end of the connecting bracket. The other end of the electric push rod is rotatably connected to the mounting ring. A drive assembly, which is mounted on the side wall of the main housing and is used to drive the toothed ring to rotate; A clamping assembly, which is mounted on a mounting ring and is used to clamp a lens.

[0006] Preferably, the driving component includes: The motor is fixedly mounted on the outer wall of the main body shell. The output end of the motor passes through the main body shell. A bevel gear is fixedly mounted on the output end of the motor. The bevel gear meshes with the toothed portion at the top of the toothed ring.

[0007] Preferably, the clamping assembly includes: Two connecting rods are symmetrically and slidably mounted on the side wall of the mounting ring. Each connecting rod has a clamping block fixedly mounted on one opposite end. Each connecting rod has a spring sleeved on its outer wall. One end of each spring is fixedly connected to the two clamping blocks, and the other end of each spring is fixedly connected to the mounting ring.

[0008] Preferably, a CCD camera is fixedly installed on the inner walls of the top and bottom of the main body shell, and the CCD camera is connected to the display screen via an HDMI interface.

[0009] Preferably, the two connecting shafts are at 90° to the two connecting rods respectively, and the connecting bracket is horizontal and perpendicular to the two connecting shafts.

[0010] Preferably, multiple lights are fixedly installed on each of the two movable supports on opposite sides, and the multiple lights are connected in parallel.

[0011] Preferably, a control panel is fixedly installed on the outer wall of the main body shell.

[0012] Preferably, two telescopic rods are fixedly installed on the opposite side of each of the two clamping blocks, and the other end of the four telescopic rods is fixedly connected to the mounting ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The lens is clamped by a clamping assembly, and CCD cameras are installed on both the top and bottom sides of the main body shell to facilitate visual inspection of the top and bottom sides of the lens. This eliminates the need to flip the lens, avoids repositioning the lens, reduces the chance of lens contamination, and improves inspection efficiency.

[0014] 2. By controlling the extension or retraction of the electric push rod, the mounting ring rotates around the connecting shaft, thereby changing the tilt angle of the lens and thus changing the angle at which light hits the lens. The motor can also be started to drive the bevel gear to rotate, and then through the meshing of the bevel gear and the teeth on the toothed ring, the lens can be rotated horizontally. This allows for multi-angle inspection, making scratches and defects on the lens clearer and avoiding the omission of defective products with minor scratches. Attached Figure Description

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the slide rail in this utility model; Figure 4 This is a schematic diagram of the regional structure of the movable support in this utility model.

[0017] Legend: 1. Main body shell; 2. Slide rail; 3. CCD camera; 4. Control panel; 5. Motor; 6. Connecting bracket; 7. Electric push rod; 8. Bevel gear; 9. Toothed ring; 10. Adjusting rod; 11. Connecting shaft; 12. Telescopic rod; 13. Spring; 14. Connecting rod; 15. Clamping block; 16. Movable bracket; 17. Lighting lamp; 18. Mounting ring. Detailed Implementation

[0018] This application provides an image quality inspection device for optical lenses, which effectively solves the problems of multiple positioning actions caused by flipping the lens, which affects the inspection efficiency; secondly, for some special angles and minor lens scratches, the recognition is low, and if the lens is inspected from a single angle, it is difficult to distinguish defective products, thus missing defective products.

[0019] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problems of multiple positioning actions caused by lens flipping, which affects detection efficiency; secondly, the low recognition rate of lens scratches at certain angles and of minor degree; and difficulty in distinguishing defective products when inspecting the lens from a single angle, thus missing defective products. The overall idea is as follows: To address the problems existing in the prior art, this utility model provides an image quality detection device for an optical lens, including a main body shell 1, a slide rail 2 fixedly installed on the inner wall of the middle part of the main body shell 1, a toothed ring 9 rotatably installed on the inner side wall of the slide rail 2, and two opposing connecting shafts 11 rotatably installed on the inner side wall of the toothed ring 9, with an installation ring 18 fixedly installed between the opposite ends of the two connecting shafts 11. Two movable brackets 16 are slidably installed on the upper and lower sides of the inner wall of the main body shell 1. Adjusting rods 10 are threaded through and threaded onto the top and bottom of the main body shell 1. The two adjusting rods 10 are threaded through and threaded onto the two movable brackets 16. A connecting bracket 6 is fixedly installed on the inner side wall of the toothed ring 9. An electric push rod 7 is rotatably installed on the upper end of the connecting bracket 6. The other end of the electric push rod 7 is rotatably connected to the mounting ring 18. A drive assembly is mounted on the side wall of the main housing 1 and is used to drive the toothed ring 9 to rotate. A clamping assembly is mounted on the mounting ring 18 and is used to clamp the lens.

[0020] Furthermore, the driving components include: Motor 5 is fixedly installed on the outer wall of the main body shell 1. The output end of motor 5 passes through the main body shell 1. A bevel gear 8 is fixedly installed at the output end of motor 5. The bevel gear 8 meshes with the toothed part at the top of the toothed ring 9.

[0021] Furthermore, the clamping assembly includes: Two connecting rods 14 are symmetrically slidably mounted on the side wall of the mounting ring 18. Each of the two connecting rods 14 has a clamping block 15 fixedly mounted on one opposite end. Each of the two connecting rods 14 has a spring 13 sleeved on its outer wall. One end of each spring 13 is fixedly connected to the two clamping blocks 15, and the other end of each spring 13 is fixedly connected to the mounting ring 18.

[0022] Furthermore, CCD cameras 3 are fixedly installed on the inner walls of the top and bottom of the main body shell 1.

[0023] Furthermore, the two connecting shafts 11 are at 90° to the two connecting rods 14 respectively, and the connecting bracket 6 is horizontal and perpendicular to the two connecting shafts 11.

[0024] Furthermore, multiple lighting lamps 17 are fixedly installed on opposite sides of the two movable brackets 16.

[0025] Furthermore, a control panel 4 is fixedly installed on the outer wall of the main body shell 1, and multiple lights 17 are connected to the control panel 4 via wires.

[0026] Furthermore, two telescopic rods 12 are fixedly installed on the opposite side of each of the two clamping blocks 15, and the other ends of the four telescopic rods 12 are fixedly connected to the mounting ring 18.

[0027] in: Main body shell 1: Cylindrical stainless steel metal shell with an open front and four support feet welded to the bottom to facilitate lens positioning. The lens is isolated by the main body shell 1, which can reduce the impact of external light on appearance inspection. Slide rail 2: It is a circular metal slide rail with an annular groove on the inner side for mounting toothed ring 9, so that toothed ring 9 can rotate relative to slide rail 2; CCD camera 3: A visible light CCD camera for industrial appearance inspection, which is vertically installed on the top and bottom of the main body shell 1, with the detection end aligned with the lens to be inspected; Control panel 4: An integrated touchscreen control panel used to control the on / off status of multiple lights 17; Motor 5: It is a DC servo motor. Its output end is connected to bevel gear 8 through a coupling. The main body is fixed on it by a metal bracket and bolts. Connecting bracket 6: It is an L-shaped metal bracket with a fixed bearing at the upper end for rotational connection with the electric push rod 7, and the lower end is fixed to the inner wall of the toothed ring 9 by bolts; Electric actuator 7: This is a miniature electric actuator with U-shaped bearings installed at both ends, so that both ends can be rotatably connected to the connecting bracket 6 and the toothed ring 9 respectively; Bevel gear 8: A metal helical bevel gear, horizontally mounted at the output end of motor 5, used to link motor 5 with tooth ring 9; Toothed ring 9: It is a circular metal ring. The outer ring is rotatably connected to the slide rail 2. The top is fixedly installed with evenly distributed helical teeth near the inner ring. The helical teeth can mesh with the bevel gear 8. Adjusting rod 10: It is a metal rod with threads on the surface and a plastic knob attached to one end. The up and down position of the movable bracket 16 can be adjusted by rotating the knob. Connecting shaft 11: It is a metal shaft with retaining ring grooves on the outer walls at both ends for installing retaining rings to prevent the connecting shaft 11 from separating from the mounting ring 18 and the toothed ring 9. The line connecting the two connecting shafts 11 coincides with one of the diameters of the mounting ring 18. Telescopic rod 12: It is a stainless steel telescopic rod with a threaded hole at one end, which is connected to the clamping block 15 by bolts, and the other end is fixedly connected to the mounting ring 18 by welding; Spring 13: It is a stainless steel spring, initially in a semi-compressed state, and its two ends are fixed to the mounting ring 18 and the clamping block 15 respectively by glue; Connecting rod 14: It is a stainless steel metal rod with a threaded hole at one end, which is fixed to the clamping block 15 by bolts. The other end is welded with a limit block with a larger diameter to prevent separation from the mounting ring 18. Clamping block 15: Made of rubber, with V-shaped grooves at the notches on opposite sides of both clamping blocks 15 to facilitate clamping the lens; Movable bracket 16: It is an aluminum alloy metal ring with grooves on both sides. A strip-shaped slider is slidably installed in each groove. The slider is fixed on the inner wall of the main body shell 1 so that the movable bracket 16 can slide up and down along the inner wall of the main body shell 1. Lighting lamp 17: LED lighting lamps, all illuminating the lens area. Multiple lighting lamps 17 are connected in parallel to facilitate individual control of the lighting lamps 17 at each angle. Mounting ring 18: It is a circular stainless steel ring with a bearing seat welded to one side of the top for rotatable connection with electric push rod 7. The outer wall has four through holes at equal angles for mounting two connecting shafts 11 and two connecting rods 14 respectively.

[0028] Working principle: The first step is to push the two clamps 15 to separate them. During this process, the telescopic rod 12 will shorten, which can improve stability. At the same time, the spring 13 will be compressed under the push of the clamps 15. Then, the lens is aligned with the groove of the two clamps 15. Next, the clamps 15 are released, so that the clamps 15 clamp the lens under the push of the spring 13, so that both the top and bottom sides of the lens can be detected.

[0029] The second step involves activating two CCD cameras 3 to capture images from the top and bottom sides of the lens, which are then transmitted to the display screen for inspection. Rotating the adjustment lever 10 moves the movable bracket 16 up or down, adjusting the position of the illumination lamp 17. The control panel 4 controls the designated illumination lamp 17 to be turned on or off, allowing for easy switching of the beam illuminating the lens. This improves the clarity of scratches and defects, enhancing the identification of defective products. The top and bottom illumination lamps 17 should not be activated simultaneously to prevent interference with the CCD camera 3 on the opposite side. After inspecting one side, the activation status of the top and bottom illumination lamps 17 can be switched, allowing direct inspection of the other side of the lens without secondary positioning, thus improving efficiency.

[0030] Third, during the inspection process, by controlling the extension or retraction of the electric push rod 7 on the connecting bracket 6, the mounting ring 18 rotates around the connecting shaft 11 as the rotation center, thereby changing the tilt angle of the lens to change the angle at which light shines on the lens. The motor 5 can also be started to drive the bevel gear 8 to rotate, and then through the meshing transmission between the bevel gear 8 and the teeth on the toothed ring 9, the lens can be rotated horizontally, so that multi-angle inspection can be performed to more clearly present scratches and defects on the lens and avoid missing defective products with small scratches.

[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An image quality testing device for an optical lens, characterized in that, include: The main body shell (1) has a slide rail (2) fixedly installed on the inner wall of the middle part of the main body shell (1). A toothed ring (9) is rotatably installed on the inner side wall of the slide rail (2). Two oppositely arranged connecting shafts (11) are rotatably installed on the inner side wall of the toothed ring (9). An installation ring (18) is fixedly installed between the opposite ends of the two connecting shafts (11). Two movable brackets (16) are slidably installed on the upper and lower sides of the inner wall of the main body shell (1). Adjusting rods (10) are threaded through and threaded on the top and bottom of the main body shell (1). The two adjusting rods (10) are threaded through and threaded to the two movable brackets (16). A connecting bracket (6) is fixedly installed on the inner side wall of the toothed ring (9). An electric push rod (7) is rotatably installed on the upper end of the connecting bracket (6). The other end of the electric push rod (7) is rotatably connected to the mounting ring (18). A drive assembly is mounted on the side wall of the main housing (1) and is used to drive the toothed ring (9) to rotate; A clamping assembly is mounted on a mounting ring (18) and is used to clamp a lens.

2. The image quality detection device for an optical lens as described in claim 1, characterized in that, The driving component includes: The motor (5) is fixedly installed on the outer wall of the main body shell (1). The output end of the motor (5) passes through the main body shell (1). A bevel gear (8) is fixedly installed on the output end of the motor (5). The bevel gear (8) meshes with the toothed part at the top of the toothed ring (9).

3. The image quality detection device for an optical lens as described in claim 1, characterized in that, The clamping assembly includes: Two connecting rods (14) are symmetrically slidably mounted on the side wall of the mounting ring (18). Each of the two connecting rods (14) has a clamping block (15) fixedly mounted on one opposite end. Each of the two connecting rods (14) has a spring (13) sleeved on its outer wall. One end of each spring (13) is fixedly connected to the two clamping blocks (15), and the other end of each spring (13) is fixedly connected to the mounting ring (18).

4. The image quality detection device for an optical lens as described in claim 1, characterized in that: CCD cameras (3) are fixedly installed on the inner walls of the top and bottom of the main body shell (1).

5. The image quality detection device for an optical lens as described in claim 1, characterized in that: The two connecting shafts (11) are at 90° to the two connecting rods (14) respectively, and the connecting bracket (6) is horizontal and perpendicular to the two connecting shafts (11).

6. The image quality detection device for an optical lens as described in claim 1, characterized in that: Multiple lighting lamps (17) are fixedly installed on opposite sides of the two movable supports (16).

7. The image quality detection device for an optical lens as described in claim 6, characterized in that: A control panel (4) is fixedly installed on the outer wall of the main body shell (1), and multiple lighting lamps (17) are connected to the control panel (4) via wires.

8. The image quality detection device for an optical lens as described in claim 3, characterized in that: Two telescopic rods (12) are fixedly installed on the opposite side of each of the two clamping blocks (15), and the other end of the four telescopic rods (12) is fixedly connected to the mounting ring (18).

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