Optical lens surface flatness detection device

Abstract

The utility model relates to the technical field of optical lens detection, and discloses an optical lens surface flatness detection device which comprises a base, a support is fixedly arranged on one side of the top of the base, and a flatness detection assembly is fixedly arranged on the top of the support. An annular positioning plate is arranged at the top of the base, supporting rods are arranged on the two sides of the annular positioning plate, the lower ends of the supporting rods are fixedly connected with the top of the base, the two sides of the annular positioning plate are rotationally connected with the two supporting rods through rotating shafts, and a lens clamping mechanism is arranged in the annular positioning plate; the lens clamping mechanism comprises two arc-shaped clamping plates and two springs, and the two arc-shaped clamping plates are symmetrically located in the annular positioning plate. According to the utility model, an elastic clamping structure is adopted, so that the clamping of the optical lens is more convenient, the turnover operation of the clamped optical lens is facilitated, the optical lens does not need to be repeatedly disassembled and assembled, and the flatness detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lens detection, in particular to a device for detecting the surface flatness of an optical lens. Background Art

[0002] After the optical lens is produced, it needs to be tested by testing equipment to check the flatness of the optical lens, so as to ensure that the flatness of the optical lens surface meets the specified requirements and eliminate defects on the optical lens surface to determine the quality and reliability of the optical lens and ensure that the optical lens will not produce optical distortion or affect the imaging quality during use.

[0003] For example, the patent number CN116753869A discloses a device for detecting the flatness of an optical lens for a camera, including a lens fixing unit and an instrument positioning unit: the instrument positioning unit is arranged on the lens fixing unit, and is used to detect the flatness of the fixed lens; the lens fixing unit includes an I-shaped table, the lower end of the I-shaped table is evenly fixedly installed with universal wheels, a circular column is fixedly installed in the middle of the upper end of the I-shaped table, the upper end of the circular column is provided with an annular groove, an electric telescopic rod is fixedly installed on the annular groove, the telescopic end of the electric telescopic rod is fixedly installed with an annular support frame for supporting the lens and positioning the center of the lens, a negative pressure adsorption frame for fixing the center of the lower end of the lens is fixedly installed on the upper end of the circular column and located in the middle of the annular support frame, and an extrusion frame for extruding the upper end surface of the lens to ensure that the lower end surface of the lens is at the same height is fixedly installed on the upper end of the I-shaped table.

[0004] In the above scheme, the lens is clamped by a screw fixing structure. Although the function of stable clamping can be achieved, the clamping efficiency is not high. Moreover, some optical lenses require double-sided flatness detection. At this time, the optical lens needs to be manually removed, turned over and clamped again, resulting in low detection efficiency. Therefore, an optical lens surface flatness detection device is proposed. Utility Model Content

[0005] The utility model aims to solve the problems raised by the background technology and provides a device for detecting the surface flatness of an optical lens.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for detecting the flatness of the surface of an optical lens comprises a base, a bracket is fixedly provided on one side of the top of the base, and a flatness detection component is fixedly provided on the top of the bracket; an annular positioning plate is provided on the top of the base, support rods are provided on both sides of the annular positioning plate, and the lower ends of the support rods are fixedly connected to the top of the base, both sides of the annular positioning plate are rotatably connected to the two support rods through a rotating shaft, and a limiting mechanism is provided between the shaft wall of one of the rotating shafts and the corresponding support rod; a lens clamping mechanism is provided inside the annular positioning plate, and the lens clamping mechanism includes two arc-shaped clamping plates and two springs, the two arc-shaped clamping plates are symmetrically located inside the annular positioning plate, and the side walls of the two arc-shaped clamping plates are fixedly connected to the inner wall of the annular positioning plate through springs.

[0008] Preferably, the limiting mechanism includes a limiting pin and a limiting plate, the limiting pin is laterally inserted on the rod wall of the support rod, the limiting plate is fixed on the shaft wall of the rotating shaft, the side wall of the limiting plate is provided with a limiting hole, and the end of the limiting pin is inserted into the interior of the limiting hole.

[0009] Preferably, a magnetic ring is fixedly provided on the rod wall of the support rod, and a magnetic block which is magnetically attracted to the magnetic ring is fixedly provided on the head of the limit latch.

[0010] Preferably, the number of the limiting holes is two, and the two limiting holes are distributed in an angled manner.

[0011] Preferably, the bracket is an L-shaped bracket.

[0012] Preferably, protective rubber pads are fixedly provided on the inner walls of the two arc-shaped clamping plates.

[0013] Preferably, pressing frames are inserted on both sides of the annular positioning plate, and one end of the two pressing frames extends into the interior of the annular positioning plate and is fixedly connected to the side walls of the two arc-shaped clamping plates respectively.

[0014] Preferably, the two pressing frames are separately arranged in a staggered manner, and a non-slip rubber sleeve is fixedly provided on one side of the pressing frame located outside the annular positioning plate.

[0015] Preferably, the annular positioning plate is located directly below the flatness detection component.

[0016] Compared with the prior art, the utility model provides a device for detecting the surface flatness of an optical lens, which has the following beneficial effects:

[0017] 1. The optical lens surface flatness detection device is provided with an annular positioning plate, an arc clamp and a spring. When the optical lens needs to be fixed, the arc clamp is manually pulled to both sides. At this time, the optical lens is directly placed between the two arc clamps, and the elastic force applied to the arc clamp by the spring enables the optical lens to be quickly clamped and fixed.

[0018] 2. The optical lens surface flatness detection device has rotating shafts on both sides of the annular positioning plate. The annular positioning plate can be rotated by the rotating shafts so that the optical lens clamped inside can be turned over, which is convenient for detecting the flatness of both sides of the optical lens without repeatedly clamping the optical lens.

[0019] 3. The optical lens surface flatness detection device is provided with a limit pin and a limit plate. Since the position of the rotating shaft can be rotated at will, the limit pin is inserted into the limit hole on the limit plate to fix the position between the rotating shaft and the support rod, so that the position of the annular positioning plate and the optical lens inside is fixed.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model adopts an elastic clamping structure, which makes the clamping of the optical lens more convenient. At the same time, it is convenient to directly turn over the clamped optical lens without repeatedly disassembling and assembling the optical lens, thereby improving the efficiency of flatness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an optical lens surface flatness detection device proposed by the utility model;

[0022] Figure 2 for Figure 1 A top view of the middle annular positioning plate;

[0023] Figure 3 for Figure 1 A magnified view of the structure of the local A part;

[0024] Figure 4 for Figure 3 Side view of the center limit plate.

[0025] In the figure: 1. base; 2. bracket; 3. flatness detection component; 4. annular positioning plate; 5. support rod; 6. rotating shaft; 7. arc clamping plate; 8. spring; 9. limit pin; 10. limit plate; 11. limit socket; 12. magnetic ring; 13. magnetic block; 14. protective rubber pad; 15. pressing frame; 16. anti-slip rubber sleeve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Example 1

[0029] Reference Figure 1-2 , an optical lens surface flatness detection device comprises a base 1, a bracket 2 is fixedly arranged on one side of the top of the base 1, the bracket 2 is an L-shaped bracket, a flatness detection assembly 3 is fixedly arranged on the top of the bracket 2, an annular positioning plate 4 is arranged on the top of the base 1, the annular positioning plate 4 is located directly below the flatness detection assembly 3, support rods 5 are arranged on both sides of the annular positioning plate 4, and the lower ends of the support rods 5 are fixedly connected to the top of the base 1, and both sides of the annular positioning plate 4 are rotatably connected to the two support rods 5 through a rotating shaft 6. After the optical lens is fixed inside the annular positioning plate 4, the surface flatness of the optical lens can be directly detected through the flatness detection assembly 3. When it is necessary to detect the other side of the optical lens, the annular positioning plate 4 is rotated by hand, so that the annular positioning plate 4 is rotated through the rotating shaft 6 angle and the optical lens inside is automatically turned over, so that the other side of the optical lens can be directly detected.

[0030] Example 2

[0031] Reference Figure 1-2A lens clamping mechanism is provided inside the annular positioning plate 4, and the lens clamping mechanism includes two arc-shaped clamping plates 7 and two springs 8. The two arc-shaped clamping plates 7 are symmetrically located inside the annular positioning plate 4, and the side walls of the two arc-shaped clamping plates 7 are fixedly connected to the inner wall of the annular positioning plate 4 through the springs 8. Pressing frames 15 are inserted on both sides of the annular positioning plate 4, and one end of the two pressing frames 15 extends to the inside of the annular positioning plate 4 and is fixedly connected to the side walls of the two arc-shaped clamping plates 7 respectively. The two pressing frames 15 are staggered and separately arranged, and the pressing frames 15 are located on the annular positioning plate 4. A non-slip rubber sleeve 16 is fixedly provided on one side of the exterior, and protective rubber pads 14 are fixedly provided on the inner walls of the two arc-shaped clamping plates 7. When the optical lens needs to be clamped, the hands push the pressing frames 15 on both sides at the same time, so that the two arc-shaped clamping plates 7 are relatively separated and the springs 8 are compressed. Then the optical lens is directly placed inside the two arc-shaped clamping plates 7, and then the outside of the pressing frames 15 are released. At this time, the springs 8 apply elastic force to the arc-shaped clamping plates 7 and automatically clamp the optical lens. The protective rubber pads 14 can prevent the optical lens from contacting the arc-shaped clamping plates 7, thereby avoiding wear.

[0032] Example 3

[0033] Reference Figure 1 and 3 -4, a limit mechanism is provided between the shaft wall of one rotating shaft 6 and the corresponding supporting rod 5, the limit mechanism comprises a limit pin 9 and a limit plate 10, the limit pin 9 is arranged on the rod wall of the supporting rod 5 in a transversely plugged manner, the limit plate 10 is fixedly arranged on the shaft wall of the rotating shaft 6, a limit hole 11 is provided on the side wall of the limit plate 10, the end of the limit pin 9 is inserted into the inside of the limit hole 11, the number of the limit holes 11 is two, and the two limit holes 11 are arranged at 180°, the rod wall of the supporting rod 5 is fixedly provided with a magnetic ring 12, the head of the limit pin 9 is fixedly provided with a magnetic block 13 which is magnetically adsorbed with the magnetic ring 12, when it is necessary to fix the position of the annular positioning plate 4, the limit pin 9 is inserted into the rod wall of the supporting rod 5, and then the end of the limit pin 9 is inserted into the inside of the limit hole 11 on the limit plate 10, so that the position of the rotating shaft 6 together with the annular positioning plate 4 is fixed, thereby increasing the stability of the optical lens.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical lens surface flatness detection device, comprising a base (1), characterized in that: A bracket (2) is fixedly provided on one side of the top of the base (1), and a flatness detection component (3) is fixedly provided on the top of the bracket (2); An annular positioning plate (4) is provided on the top of the base (1), support rods (5) are provided on both sides of the annular positioning plate (4), and the lower ends of the support rods (5) are fixedly connected to the top of the base (1), and both sides of the annular positioning plate (4) are rotatably connected to the two support rods (5) via a rotating shaft (6), and a limiting mechanism is provided between the shaft wall of one of the rotating shafts (6) and the corresponding support rod (5); A lens clamping mechanism is provided inside the annular positioning plate (4), and the lens clamping mechanism comprises two arc-shaped clamping plates (7) and two springs (8). The two arc-shaped clamping plates (7) are symmetrically located inside the annular positioning plate (4), and the side walls of the two arc-shaped clamping plates (7) are fixedly connected to the inner wall of the annular positioning plate (4) via the springs (8).

2. The optical lens surface flatness detection device according to claim 1, characterized in that: The limiting mechanism comprises a limiting pin (9) and a limiting plate (10), wherein the limiting pin (9) is laterally inserted on the rod wall of the support rod (5), and the limiting plate (10) is fixedly arranged on the shaft wall of the rotating shaft (6). A limiting insertion hole (11) is provided on the side wall of the limiting plate (10), and the end of the limiting pin (9) is inserted into the interior of the limiting insertion hole (11).

3. The optical lens surface flatness detection device according to claim 2, characterized in that: A magnetic ring (12) is fixedly provided on the rod wall of the support rod (5), and a magnetic block (13) is fixedly provided on the head of the limit latch (9) and is magnetically attracted to the magnetic ring (12).

4. The optical lens surface flatness detection device according to claim 2, characterized in that: The number of the limiting plug holes (11) is two, and the two limiting plug holes (11) are arranged at a 180° distribution.

5. The optical lens surface flatness detection device according to claim 1, characterized in that: The bracket (2) is an L-shaped bracket.

6. The optical lens surface flatness detection device according to claim 1, characterized in that: The inner walls of the two arc-shaped clamping plates (7) are both fixedly provided with protective rubber pads (14).

7. The optical lens surface flatness detection device according to claim 1, characterized in that: Pressing frames (15) are inserted on both sides of the annular positioning plate (4), and one end of the two pressing frames (15) extends into the interior of the annular positioning plate (4) and is fixedly connected to the side walls of the two arc-shaped clamping plates (7) respectively.

8. The optical lens surface flatness detection device according to claim 7, characterized in that: The two pressing frames (15) are arranged separately and staggered, and a non-slip rubber sleeve (16) is fixedly provided on one side of the pressing frame (15) located outside the annular positioning plate (4).

9. The optical lens surface flatness detection device according to claim 1, characterized in that: The annular positioning plate (4) is located directly below the flatness detection component (3).

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