Optical element detection device

Abstract

The utility model discloses an optical element detection device, which belongs to the technical field of optical elements and comprises a detection table, a lifting mechanism and a detection mechanism, and the lifting mechanism is fixedly arranged on the detection table and used for adjusting the height of the detection mechanism. A positioning plate is fixedly arranged on the detection table, a cross-shaped sliding groove is formed in the positioning plate, a positioning block is arranged in the cross-shaped sliding groove, a rotating motor is arranged at the bottom of the detection table, the output end of the rotating motor is connected with a rotating shaft, a rotating disc is arranged on the rotating shaft, four first connecting shafts are arranged at the bottom of the rotating disc, and a second connecting shaft is arranged at the bottom of the sliding block. A connecting rod is arranged between the first connecting shaft and the second connecting shaft, and the positioning block is used for positioning the optical element. According to the utility model, the optical element can be quickly positioned at the bottom of the detection device and at the center of the detection end, so that the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical element technology, and in particular to an optical element detection device. Background Technology

[0002] In the field of optical component manufacturing and testing, with the rapid development of industries such as smartphones, security monitoring, and laser processing, the market demand for optical components (such as lenses, filters, and prisms) has grown dramatically and their specifications have become increasingly diversified. The surface precision and dimensional tolerances of optical components directly affect imaging quality and optical system performance; therefore, high-precision testing has become a key link in ensuring product quality.

[0003] Existing optical component testing equipment consists of a fixed testing stage, adjustable fixtures, and testing instruments. The fixtures are fixed to the testing stage by mechanical structures such as screws and knobs. The clamping arms or positioning pins of the fixtures are manually adjusted to place and clamp the optical components. The testing instruments (such as microscopes or CCD cameras) are fixed next to the testing stage by a bracket for testing.

[0004] Because adjustable fixtures require the optical element to be positioned at the output center of the testing instrument during adjustment, it is impossible to guarantee that the element will always be in the center of the testing instrument during the positioning process of optical elements of different sizes. Multiple calibrations are required, resulting in low testing efficiency. Utility Model Content

[0005] This invention provides an optical component testing device that can solve the problem in the prior art that when testing optical components, it is impossible to guarantee that the component is always located in the center of the testing instrument, requiring multiple calibrations.

[0006] An optical element inspection device includes an inspection platform, a lifting mechanism, and an inspection mechanism. The lifting mechanism is fixedly mounted on the inspection platform and is used to adjust the height of the inspection mechanism. A positioning plate is fixedly mounted on the inspection platform, and a cross-shaped groove is formed on the positioning plate. A positioning block is disposed within the cross-shaped groove. A rotary motor is disposed at the bottom of the inspection platform, and a rotating shaft is connected to the output end of the rotary motor. A turntable is disposed on the rotating shaft, and four first connecting shafts are disposed at the bottom of the turntable. A second connecting shaft is disposed at the bottom of the positioning block. A connecting rod is disposed between the first connecting shafts and the second connecting shafts. The positioning block is used to position the optical element.

[0007] According to one embodiment of the present invention, the lifting mechanism includes a lifting seat, a lifting motor and a lead screw. The lifting seat is fixedly mounted on the testing platform, and a lifting groove is provided on the lifting seat. The lead screw is rotatably mounted in the lifting groove. The lifting motor is fixedly mounted on the top of the lifting seat, and its output end is connected to the lead screw.

[0008] According to one embodiment of the present invention, the detection mechanism includes a slider, a detection frame and a CCD camera. The slider is mounted on a lead screw, the detection frame is fixedly mounted on the side wall of the slider, and the CCD camera is mounted on the detection frame with its output end located above the positioning plate.

[0009] According to one embodiment of the present invention, the output end of the CCD camera is located at the center of the positioning plate on the projection of the positioning plate.

[0010] According to one embodiment of the present invention, a connecting plate is provided on the top of the turntable, and the top of the connecting plate is fixedly disposed on the top of the positioning plate.

[0011] According to one embodiment of the present invention, the size of the positioning block is adapted to the size of the cross groove.

[0012] According to one embodiment of the present invention, a control panel is provided on the testing platform.

[0013] According to one embodiment of the present invention, a plurality of adjustment buttons are provided on one side of the control panel.

[0014] According to one embodiment of the present invention, the slider size is adapted to the lifting groove.

[0015] According to one embodiment of the present invention, a limiting ring is disposed on the first connecting shaft and the second connecting shaft, and the limiting ring is used to limit the connecting rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a rotary motor to start the rotating shaft, which in turn rotates the turntable on the shaft. Four first connecting shafts at the bottom of the turntable rotate together with the turntable, and these first connecting shafts are connected to second connecting shafts at the bottom of the positioning blocks via connecting rods. Due to the transmission effect of the connecting rods, when the turntable rotates, the four positioning blocks simultaneously move along the cross grooves towards the center of the positioning plate, automatically clamping and fixing the optical element. This allows for rapid positioning of the optical element at the center of the detection end, improving detection efficiency and adapting to the detection of both circular and square optical elements. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an optical element detection device.

[0019] Figure 2 This is a schematic diagram of the connecting rod installation.

[0020] Figure 3 This is a schematic diagram of the positioning block installation.

[0021] The attached diagram shows the following labels: 1. Inspection table; 2. Positioning plate; 21. Cross slide; 3. Rotary motor; 31. Rotating shaft; 32. Turntable; 33. Positioning block; 4. First connecting shaft; 41. Second connecting shaft; 42. Connecting rod; 5. Lifting seat; 51. Lifting groove; 52. Lead screw; 53. Lifting motor; 6. Slider; 61. Inspection frame; 62. CCD camera; 7. Connecting plate; 8. Control panel; 81. Adjustment button. Detailed Implementation

[0022] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0023] like Figures 1 to 3 As shown, an optical element inspection device includes an inspection platform 1, a lifting mechanism, and an inspection mechanism. The lifting mechanism is fixedly mounted on the inspection platform 1 and is used to adjust the height of the inspection mechanism. A positioning plate 2 is fixedly mounted on the inspection platform 1. A cross groove 21 is formed on the positioning plate 2, and a positioning block 33 is disposed within the cross groove 21. The size of the positioning block 33 is adapted to the size of the cross groove 21. A rotary motor 3 is disposed at the bottom of the inspection platform 1. The output end of the rotary motor 3 is connected to a rotating shaft 31. A turntable 32 is disposed on the rotating shaft 31. Four first connecting shafts 4 are disposed at the bottom of the turntable 32. A second connecting shaft 41 is disposed at the bottom of the positioning block 33. A connecting rod 42 is disposed between the first connecting shafts 4 and the second connecting shafts 41. The positioning block 33 is used to position the optical element.

[0024] After the rotary motor 3 starts, it outputs power to drive the rotating shaft 31 and the turntable 32 to rotate, and the first connecting shaft 4 at the bottom of the turntable 32 rotates accordingly. The first connecting shaft 4 is hinged to the second connecting shaft 41 at the bottom of the positioning block 33 through the connecting rod 42, which converts the circular motion of the turntable 32 into the linear motion of the positioning block 33 in the cross groove 21, so that the four positioning blocks 33 move synchronously toward or away from the center of the positioning plate 2, thereby realizing the clamping and releasing of the optical element.

[0025] The cross groove 21 on the positioning plate 2 provides a horizontal and vertical moving track for the positioning block 33, and the bottom of the positioning block 33 slides in the cross groove 21. When the rotary motor 3 drives the connecting rod 42 to move the positioning block 33, the positioning block 33 slides radially in the cross groove 21. By adjusting the spacing between the positioning blocks 33, the positioning and clamping of optical elements of different sizes can be achieved.

[0026] The lifting mechanism includes a lifting seat 5, a lifting motor 53, and a lead screw 52. The lifting seat 5 is fixedly mounted on the testing table 1. A lifting groove 51 is provided on the lifting seat 5. The lead screw 52 is rotatably mounted in the lifting groove 51. The lifting motor 53 is fixedly mounted on the top of the lifting seat 5, and its output end is connected to the lead screw 52.

[0027] After the lifting motor 53 starts, it drives the lead screw 52 to rotate within the lifting groove 51. The slider 6 on the lead screw 52, ​​due to its threaded engagement with the lead screw 52 and the limiting constraint of the lifting groove 51, can only move up and down along the groove. As the slider 6 moves, it synchronously raises and lowers the detection frame 61 and the CCD camera fixed to its side wall, achieving precise adjustment of the detection mechanism's height.

[0028] The detection mechanism includes a slider 6, a detection frame 61, and a CCD camera 62. The slider 6 is mounted on a lead screw 52, ​​and its dimensions are adapted to the lifting groove 51. The detection frame 61 is fixedly mounted on the side wall of the slider 6, and the CCD camera 62 is mounted on the detection frame 61, with its output end located above the positioning plate 2. The output end of the CCD camera 62 is projected onto the positioning plate 2 and is located at the center of the positioning plate 2.

[0029] The CCD camera is fixedly mounted on the inspection frame 61, and its output end is projected onto the positioning plate 2 at the center of the positioning plate 2. After the inspection mechanism is adjusted to a suitable height by the lifting mechanism, the CCD camera can acquire a clear image of the optical element located at the center of the positioning plate 2, ensuring that the inspection field of view covers the critical parts of the element.

[0030] A connecting plate 7 is provided on the top of the turntable 32, and the top of the connecting plate 7 is fixedly mounted on the top of the positioning plate 2. This improves the stability of the turntable 32's rotation.

[0031] The testing station 1 is equipped with a control panel 8. Several adjustment buttons 81 are provided on one side of the control panel 8.

[0032] Limiting rings are configured on the first connecting shaft 4 and the second connecting shaft 41. The limiting rings are used to limit the movement of the connecting rod 42, preventing the connecting rod 42 from axially moving or detaching from the connecting shaft during transmission.

[0033] The working principle of this invention is as follows: The optical element is placed in the cross groove 21 of the positioning plate 2. The rotary motor 3 is started, and its output drives the rotating shaft 31 to rotate, thereby causing the turntable 32 on the shaft 31 to rotate. The four first connecting shafts 4 at the bottom of the turntable 32 rotate together with the turntable 32. The first connecting shafts 4 are connected to the second connecting shafts 41 at the bottom of the positioning blocks 33 via connecting rods 42. Due to the transmission action of the connecting rods 42, when the turntable 32 rotates, the four positioning blocks 33 simultaneously move along the cross groove 21 towards the center of the positioning plate 2, automatically clamping and fixing the optical element.

[0034] Simultaneously, according to the testing requirements of the optical components, the lifting mechanism is activated via the adjustment button 81 on the control panel 8. The lifting motor 53 drives the lead screw 52 to rotate, and the slider 6 on the lead screw 52 moves up and down along the lifting groove 51. The testing frame 61 and CCD camera, fixed to the side wall of the slider 6, also rise and fall accordingly, adjusting the height of the testing mechanism. When the CCD camera is adjusted to a suitable position (its output end's projection on the positioning plate 2 is located at the center of the positioning plate 2), the CCD camera acquires and tests the image of the clamped optical components. The test data is transmitted to the control system for analysis and processing to determine whether the optical components are qualified. After the test is completed, the rotary motor 3 is restarted to rotate in the opposite direction, causing the positioning block 33 to move away from the center of the positioning plate 2, releasing the clamp on the optical components and facilitating their removal.

[0035] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An optical element testing device, comprising a testing platform (1), a lifting mechanism and a testing mechanism, wherein the lifting mechanism is fixedly mounted on the testing platform (1) and is used to adjust the height of the testing mechanism; Its features are, A positioning plate (2) is fixedly installed on the testing platform (1). A cross groove (21) is opened on the positioning plate (2). A positioning block (33) is installed in the cross groove (21). A rotary motor (3) is installed at the bottom of the testing platform (1). A rotating shaft (31) is connected to the output end of the rotary motor (3). A turntable (32) is installed on the rotating shaft (31). Four first connecting shafts (4) are installed at the bottom of the turntable (32). A second connecting shaft (41) is installed at the bottom of the positioning block (33). A connecting rod (42) is installed between the first connecting shaft (4) and the second connecting shaft (41). The positioning block (33) is used to position the optical element.

2. The optical element detection device as described in claim 1, characterized in that, The lifting mechanism includes a lifting seat (5), a lifting motor (53), and a lead screw (52). The lifting seat (5) is fixedly installed on the testing table (1). A lifting groove (51) is provided on the lifting seat (5). The lead screw (52) is rotatably installed in the lifting groove (51). The lifting motor (53) is fixedly installed on the top of the lifting seat (5), and its output end is connected to the lead screw (52).

3. The optical element detection device as described in claim 2, characterized in that, The detection mechanism includes a slider (6), a detection frame (61) and a CCD camera (62). The slider (6) is mounted on a lead screw (52). The detection frame (61) is fixedly mounted on the side wall of the slider (6). The CCD camera (62) is mounted on the detection frame (61), and its output end is located above the positioning plate (2).

4. The optical element detection device as described in claim 3, characterized in that, The output end of the CCD camera (62) is projected onto the positioning plate (2) and is located at the center of the positioning plate (2).

5. The optical element detection device as described in claim 1, characterized in that, The top of the turntable (32) is provided with a connecting plate (7), and the top of the connecting plate (7) is fixedly disposed on the top of the positioning plate (2).

6. The optical element detection device as described in claim 1, characterized in that, The dimensions of the positioning block (33) are adapted to the dimensions of the cross groove (21).

7. The optical element detection device as described in claim 1, characterized in that, The testing station (1) is equipped with a control panel (8).

8. The optical element detection device as described in claim 7, characterized in that, Several adjustment buttons (81) are provided on one side of the control panel (8).

9. The optical element detection device as described in claim 3, characterized in that, The slider (6) is sized to match the lifting groove (51).

10. The optical element detection device as described in claim 1, characterized in that, Limiting rings are configured on the first connecting shaft (4) and the second connecting shaft (41), and the limiting rings are used to limit the connecting rod (42).

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