Adjustable lens multi-aperture precision measuring device

Abstract

The utility model belongs to the technical field of lens measurement, and particularly relates to an adjustable lens multi-aperture precision measuring device, which comprises a base and a wavefront tester fixedly connected to the top of the base, a mounting rack is arranged above the wavefront tester, a light source piece is fixedly connected to the inner wall of the top of the mounting rack, and the light source piece is fixedly connected to the top of the mounting rack. A supporting plate is arranged on the mounting frame, a mounting hole is formed in the top of the supporting plate, a clamping mechanism used for fixing a lens is arranged between the supporting plate and the mounting hole, and a displacement mechanism is arranged between the supporting plate and the mounting frame. According to the utility model, the structure design is reasonable, the position and angle of the to-be-detected lens can be adjusted, the defects of the lens can be more comprehensively and accurately identified by detecting the to-be-detected lens at different positions and angles, compared with the traditional fixing device, the detection range and accuracy are greatly improved, the lens can be stably clamped, and the detection efficiency is improved. And the influence on the measurement precision caused by deflection and shaking during measurement is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lens measurement technology, and in particular to an adjustable multi-aperture precision measuring device for lenses. Background Technology

[0002] During the lens manufacturing process, it is necessary to inspect the quality of the lenses, including detecting defects such as flaws, bubbles, and cracks, as well as measuring the optical parameters of the lenses, such as focal length and radius of curvature, to ensure that the product quality meets the standard requirements.

[0003] However, existing multi-aperture precision measuring devices for lenses have shortcomings in use. They are inconvenient to adjust the position and angle of the lens under test, and cannot detect lenses at different positions and angles. This makes it impossible to identify lens defects more comprehensively and accurately, which not only reduces the detection range but also greatly reduces the accuracy of the detection. Therefore, we propose an adjustable multi-aperture precision measuring device for lenses to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings mentioned above by proposing an adjustable lens multi-aperture precision measuring device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable lens multi-aperture precision measuring device includes a base and a wavefront tester fixedly connected to the top of the base. A mounting frame is provided above the wavefront tester. A light source is fixedly connected to the inner top wall of the mounting frame. A support plate is provided on the mounting frame. A mounting hole is provided on the top of the support plate. A clamping mechanism for fixing the lens is provided between the support plate and the mounting hole. A displacement mechanism is provided between the support plate and the mounting frame. A column is fixedly connected to the top of the base. An angle adjustment mechanism is provided between the column and the mounting frame.

[0007] In a preferred embodiment of this utility model, the clamping mechanism includes a sleeve fixedly connected to one side of the support plate. A drive motor is fixedly connected to the top of the sleeve, and a driving bevel gear is fixedly connected to the output shaft of the drive motor. A bidirectional lead screw is rotatably arranged inside the sleeve. A driven bevel gear is fixedly sleeved on the outer side of the bidirectional lead screw. The driving bevel gear meshes with the driven bevel gear. Two adjusting plates are threaded on the outer side of the bidirectional lead screw. A connecting plate is fixedly connected to the side of the two adjusting plates that are far apart from each other. A sliding rod is fixedly connected to the side of the two connecting plates that are close to each other. An arc-shaped clamping plate is fixedly connected to the side of the two sliding rods that are close to each other.

[0008] As a preferred embodiment of this utility model, the support plate has sliding holes on both the front and rear sides, two sliding rods are slidably sleeved in the corresponding sliding holes, and two arc-shaped clamps are movably set in the mounting holes.

[0009] As a preferred embodiment of this utility model, two stabilizing plates are fixedly connected to the bottom inner wall of the housing, and the bidirectional lead screw is rotatably connected to the two stabilizing plates.

[0010] As a preferred embodiment of this utility model, the angle adjustment mechanism includes a rotary motor fixedly connected to the top of the column, a rotary shaft fixedly connected to the output shaft of the rotary motor, a rotating plate fixedly connected to the top end of the rotary shaft, and a mounting bracket fixedly connected to one side of the rotating plate.

[0011] As a preferred embodiment of this invention, a counterweight is fixedly connected to the other side of the rotating plate, and the rotating shaft is located between the counterweight and the mounting frame.

[0012] In a preferred embodiment of this utility model, the displacement mechanism includes a servo motor fixedly connected to one side of the mounting frame and a threaded sleeve rotatably connected to one side of the mounting frame. A drive bevel gear is fixedly connected to the output shaft of the servo motor, and a driven bevel gear is fixedly sleeved on the outer side of the threaded sleeve. The drive bevel gear meshes with the driven bevel gear, and a threaded rod is threaded inside the threaded sleeve. One end of the threaded rod is fixedly connected to one side of the support plate.

[0013] In a preferred embodiment of this invention, a bearing is fixedly connected to one side of the mounting bracket, the threaded sleeve is fixedly fitted inside the inner ring of the bearing, and a limit rod is fixedly connected to one side of the support plate, the limit rod being slidably mounted on the mounting bracket.

[0014] In this utility model, an adjustable lens multi-aperture precision measuring device is described. The lens is placed in the mounting hole, and the drive motor is started. The drive motor drives the rotation of the active bevel gear, which in turn drives the rotation of the driven bevel gear and the bidirectional lead screw. The bidirectional lead screw causes two adjusting plates, a connecting plate, a sliding rod, and an arc-shaped clamping plate to move closer together and firmly abut against the front and rear sides of the lens. This allows the lens to be clamped and fixed on the support plate, preventing deflection and shaking during measurement that could affect measurement accuracy. The rotating motor drives the rotation of the rotating shaft and the rotating plate, which in turn drives the synchronous rotation of the mounting frame, the light source, and the lens, thereby adjusting the angle between the lens and the wavefront tester.

[0015] In this utility model, an adjustable multi-aperture precision measuring device for lenses is described. A servo motor drives the rotation of an active bevel gear, which in turn drives the rotation of a driven bevel gear and a threaded sleeve. The threaded sleeve, along with the limiting rod, drives the horizontal movement of the threaded rod, support plate, and lens, thereby adjusting the position and angle of the lens under test. By inspecting lenses at different positions and angles, lens defects can be identified more comprehensively and accurately. Compared with traditional fixed devices, the detection range and accuracy are greatly improved. The light beam emitted by the light source passes through the lens under test and reaches the wavefront tester. Through the processing and analysis of the wavefront tester, various defects of the lens under test can be accurately identified.

[0016] This utility model has a reasonable structural design and can adjust the position and angle of the lens under test. By testing the lens under test at different positions and angles, the defects of the lens can be identified more comprehensively and accurately. Compared with traditional fixed devices, the detection range and accuracy are greatly improved, and the lens can be clamped securely to avoid deviation and shaking during measurement, which would affect the accuracy of the measurement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable lens multi-aperture precision measuring device proposed in this utility model;

[0018] Figure 2 This is a perspective view of the displacement mechanism of an adjustable lens multi-aperture precision measuring device proposed in this utility model;

[0019] Figure 3 A top perspective view of the clamping mechanism of an adjustable lens multi-aperture precision measuring device proposed in this utility model;

[0020] Figure 4 This is a perspective view of the clamping mechanism of an adjustable lens multi-aperture precision measuring device proposed in this utility model.

[0021] In the diagram: 1. Base; 2. Wavefront tester; 3. Column; 4. Angle adjustment mechanism; 5. Mounting bracket; 6. Light source; 7. Displacement mechanism; 8. Support plate; 9. Clamping mechanism; 10. Mounting hole; 41. Rotary motor; 42. Rotating shaft; 43. Counterweight; 44. Rotating plate; 71. Servo motor; 72. Driving bevel gear; 73. Driven bevel gear; 74. Threaded rod; 75. Threaded sleeve; 76. Bearing; 77. Limiting rod; 90. Stabilizing plate; 91. Housing; 92. Drive motor; 93. Adjusting plate; 94. Connecting plate; 95. Slide rod; 96. Arc-shaped clamp; 97. Driving bevel gear; 98. Driven bevel gear; 99. Bidirectional lead screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 An adjustable lens multi-aperture precision measuring device includes a base 1 and a wavefront tester 2 fixedly connected to the top of the base 1. A mounting frame 5 is provided above the wavefront tester 2. A light source 6 is fixedly connected to the inner wall of the top of the mounting frame 5. A support plate 8 is provided on the mounting frame 5. A mounting hole 10 is opened on the top of the support plate 8. A clamping mechanism 9 for fixing the lens is provided between the support plate 8 and the mounting hole 10. A displacement mechanism 7 is provided between the support plate 8 and the mounting frame 5. A column 3 is fixedly connected to the top of the base 1. An angle adjustment mechanism 4 is provided between the column 3 and the mounting frame 5.

[0024] Specifically, refer to Figure 1 , Figure 3 and Figure 4 As shown, the clamping mechanism 9 includes a housing 91 fixedly connected to one side of the support plate 8. A drive motor 92 is fixedly connected to the top of the housing 91. A drive bevel gear 97 is fixedly connected to the output shaft of the drive motor 92. A bidirectional lead screw 99 is rotatably arranged inside the housing 91. A driven bevel gear 98 is fixedly sleeved on the outer side of the bidirectional lead screw 99. The drive bevel gear 97 meshes with the driven bevel gear 98. Two adjusting plates 93 are threaded on the outer side of the bidirectional lead screw 99. A connecting plate 94 is fixedly connected to the side of the two adjusting plates 93 that are far apart from each other. A sliding rod 95 is fixedly connected to the side of the two connecting plates 94 that are close to each other. An arc-shaped clamping plate 96 is fixedly connected to the side of the two sliding rods 95 that are close to each other.

[0025] Using the above scheme: Place the lens in the mounting hole 10, start the drive motor 92, the drive motor 92 drives the rotation of the active bevel gear 97, the active bevel gear 97 drives the rotation of the driven bevel gear 98 and the double-acting lead screw 99, the double-acting lead screw 99 drives the two adjusting plates 93, the connecting plate 94, the slide rod 95 and the arc-shaped clamping plate 96 to move closer to each other and firmly abut against the front and rear sides of the lens, thereby clamping and fixing the lens on the support plate 8, avoiding deflection and shaking during measurement and affecting the measurement accuracy.

[0026] Specifically, the support plate 8 has sliding holes on both the front and rear sides, and two sliding rods 95 are slidably sleeved in the corresponding sliding holes. Two arc-shaped clamps 96 are movably set in the mounting holes 10, which can guide and limit the arc-shaped clamps 96 and the sliding rods 95, making their movement more stable and smooth.

[0027] Specifically, two stabilizing plates 90 are fixedly connected to the bottom inner wall of the sleeve 91, and the bidirectional lead screw 99 is rotatably connected to the two stabilizing plates 90 through it, which can support the bidirectional lead screw 99 and make its rotation more stable.

[0028] Specifically, refer to Figure 1 As shown, the angle adjustment mechanism 4 includes a rotary motor 41 fixedly connected to the top of the column 3, a rotary shaft 42 fixedly connected to the output shaft of the rotary motor 41, a rotating plate 44 fixedly connected to the top of the rotating shaft 42, and a mounting bracket 5 fixedly connected to one side of the rotating plate 44.

[0029] The above scheme is adopted: the rotating motor 41 drives the rotating shaft 42 and the rotating plate 44 to rotate, and the rotating plate 44 drives the mounting bracket 5, the light source 6 and the lens to rotate synchronously, thereby adjusting the angle between the lens and the wavefront tester 2.

[0030] Specifically, a counterweight 43 is fixedly connected to the other side of the rotating plate 44, and the rotating shaft 42 is located between the counterweight 43 and the mounting bracket 5 to ensure the configuration of both sides of the rotating shaft 42, making its rotation more stable.

[0031] Specifically, refer to Figure 1 and Figure 2 As shown, the displacement mechanism 7 includes a servo motor 71 fixedly connected to one side of the mounting bracket 5 and a threaded sleeve 75 rotatably connected to one side of the mounting bracket 5. A drive bevel gear 72 is fixedly connected to the output shaft of the servo motor 71. A driven bevel gear 73 is fixedly sleeved on the outer side of the threaded sleeve 75. The drive bevel gear 72 and the driven bevel gear 73 mesh with each other. A threaded rod 74 is threaded inside the threaded sleeve 75. One end of the threaded rod 74 is fixedly connected to one side of the support plate 8.

[0032] The above scheme is adopted: the servo motor 71 drives the rotation of the active bevel gear 72, the active bevel gear 72 drives the rotation of the driven bevel gear 73 and the threaded sleeve 75, and the threaded sleeve 75 drives the threaded rod 74, the support plate 8 and the lens to move horizontally at the limit rod 77.

[0033] Specifically, a bearing 76 is fixedly connected to one side of the mounting bracket 5, and a threaded sleeve 75 is fixedly fitted inside the inner ring of the bearing 76. A limit rod 77 is fixedly connected to one side of the support plate 8. The limit rod 77 is slidably mounted on the mounting bracket 5 to guide the support plate 8, making its movement more stable and smooth. At the same time, it can support the threaded sleeve 75, making its rotation more stable.

[0034] In this invention, the lens is placed in the mounting hole 10, and the drive motor 92 is started. The drive motor 92 drives the rotation of the driving bevel gear 97, which in turn drives the rotation of the driven bevel gear 98 and the double-acting lead screw 99. The double-acting lead screw 99 drives the two adjusting plates 93, the connecting plate 94, the sliding rod 95, and the arc-shaped clamping plate 96 to move closer together and firmly abut against the front and rear sides of the lens. This allows the lens to be clamped and fixed on the support plate 8, preventing deflection and shaking during measurement that could affect measurement accuracy. The rotary motor 41 drives the rotation of the rotating shaft 42 and the rotating plate 44, which in turn drives the rotation of the rotating shaft 42 and the rotating plate 44. The synchronous rotation of the mounting bracket 5, the light source 6, and the lens allows for adjustment of the angle between the lens and the wavefront tester 2. The servo motor 71 drives the rotation of the active bevel gear 72, which in turn drives the rotation of the driven bevel gear 73 and the threaded sleeve 75. The threaded sleeve 75, along with the limit rod 77, drives the threaded rod 74, the support plate 8, and the lens to move horizontally, thereby adjusting the position and angle of the lens under test. By inspecting lenses at different positions and angles, lens defects can be identified more comprehensively and accurately. Compared to traditional fixed devices, the detection range and accuracy are significantly improved.

[0035] The light beam emitted by the light source 6 passes through the lens under test and reaches the wavefront tester 2. The wavefront tester 2 is a known existing technology and will not be described in detail in this article. Through the processing and analysis of the wavefront tester 2, various defects of the lens under test can be accurately identified.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable lens multi-aperture precision measuring device, characterized in that, The device includes a base (1) and a wavefront tester (2) fixedly connected to the top of the base (1). A mounting frame (5) is provided above the wavefront tester (2). A light source (6) is fixedly connected to the inner top wall of the mounting frame (5). A support plate (8) is provided on the mounting frame (5). A mounting hole (10) is provided on the top of the support plate (8). A clamping mechanism (9) for fixing the lens is provided between the support plate (8) and the mounting hole (10). A displacement mechanism (7) is provided between the support plate (8) and the mounting frame (5). A column (3) is fixedly connected to the top of the base (1). An angle adjustment mechanism (4) is provided between the column (3) and the mounting frame (5).

2. The adjustable lens multi-aperture precision measuring device according to claim 1, characterized in that, The clamping mechanism (9) includes a housing (91) fixedly connected to one side of the support plate (8). A drive motor (92) is fixedly connected to the top of the housing (91). A drive bevel gear (97) is fixedly connected to the output shaft of the drive motor (92). A bidirectional lead screw (99) is rotatably arranged inside the housing (91). A driven bevel gear (98) is fixedly sleeved on the outside of the bidirectional lead screw (99). The drive bevel gear (97) meshes with the driven bevel gear (98). Two adjusting plates (93) are threaded on the outside of the bidirectional lead screw (99). A connecting plate (94) is fixedly connected to the side of the two adjusting plates (93) that are far apart from each other. A slide rod (95) is fixedly connected to the side of the two connecting plates (94) that are close to each other. An arc-shaped clamping plate (96) is fixedly connected to the side of the two slide rods (95) that are close to each other.

3. The adjustable lens multi-aperture precision measuring device according to claim 2, characterized in that, The support plate (8) has sliding holes on both the front and rear sides, and two sliding rods (95) are slidably sleeved in the corresponding sliding holes. The two arc-shaped clamps (96) are movably set in the mounting holes (10).

4. The adjustable lens multi-aperture precision measuring device according to claim 2, characterized in that, Two stabilizing plates (90) are fixedly connected to the bottom inner wall of the sleeve (91), and the bidirectional lead screw (99) is rotatably connected to the two stabilizing plates (90).

5. The adjustable lens multi-aperture precision measuring device according to claim 1, characterized in that, The angle adjustment mechanism (4) includes a rotary motor (41) fixedly connected to the top of the column (3), a rotary shaft (42) fixedly connected to the output shaft of the rotary motor (41), a rotating plate (44) fixedly connected to the top of the rotating shaft (42), and a mounting bracket (5) fixedly connected to one side of the rotating plate (44).

6. The adjustable lens multi-aperture precision measuring device according to claim 5, characterized in that, A counterweight (43) is fixedly connected to the other side of the rotating plate (44), and the rotating shaft (42) is located between the counterweight (43) and the mounting bracket (5).

7. The adjustable lens multi-aperture precision measuring device according to claim 1, characterized in that, The displacement mechanism (7) includes a servo motor (71) fixedly connected to one side of the mounting bracket (5) and a threaded sleeve (75) rotatably connected to one side of the mounting bracket (5). A drive bevel gear (72) is fixedly connected to the output shaft of the servo motor (71). A driven bevel gear (73) is fixedly sleeved on the outside of the threaded sleeve (75). The drive bevel gear (72) meshes with the driven bevel gear (73). A threaded rod (74) is threaded inside the threaded sleeve (75). One end of the threaded rod (74) is fixedly connected to one side of the support plate (8).

8. The adjustable lens multi-aperture precision measuring device according to claim 7, characterized in that, A bearing (76) is fixedly connected to one side of the mounting bracket (5), and a threaded sleeve (75) is fixedly sleeved inside the inner ring of the bearing (76). A limit rod (77) is fixedly connected to one side of the support plate (8), and the limit rod (77) is slidably mounted on the mounting bracket (5).

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