Lens testing device

Abstract

The application discloses a lens detection device, which comprises a detection box, a feeding unit and a discharging unit, a detection unit and a carrying unit arranged in the detection box; the feeding unit is used for feeding lenses to the detection unit; the discharging unit comprises a first conveying mechanism used for conveying qualified lenses and a second conveying mechanism used for conveying defective lenses; the carrying unit is located between the detection unit and the first conveying mechanism and the second conveying mechanism and is used for placing the lenses in the first conveying mechanism and the second conveying mechanism correspondingly. After the detection of the lenses is completed, the carrying unit can pick up the lenses after the detection is completed, can place the qualified lenses in the first conveying mechanism and can place the defective lenses in the second conveying mechanism, so that the lenses can be classified, and the lenses can be quickly picked up for tray loading in the subsequent process, and the detection efficiency can be greatly improved.

Description

Technical Field

[0001] This application relates to the field of lens testing technology, specifically to a lens testing device. Background Technology

[0002] Optical lenses are widely used in various fields, so the quality requirements for them are becoming increasingly stringent. After manufacturing, optical lenses need to be inspected so that workers can screen out substandard products. Because defective lenses may be mixed in, after inspection, lenses with defects need to be sorted out to ensure that defective lenses are not mixed with qualified lenses. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a lens inspection device that improves inspection efficiency and is suitable for large-volume lens inspection, employing the following technical solution: A lens testing device includes a testing box, a feeding unit, and a unloading unit, as well as a testing unit and a conveying unit disposed within the testing box; the feeding unit is used to supply lenses to the testing unit. The unloading unit includes a first conveying mechanism for conveying qualified lenses and a second conveying mechanism for conveying defective lenses; The transport unit is located between the detection unit and the first transport mechanism and the second transport mechanism, and is used to place the lens in the first transport mechanism and the second transport mechanism respectively.

[0004] Preferably, the detection unit includes a rotatable rotating platform and a detection component, as well as detection stations evenly distributed along the circumference of the rotating platform, wherein the detection component is used to detect the lenses within the detection stations.

[0005] More preferably, the rotating platform is circumferentially distributed with a plurality of opening and closing components, each of the opening and closing components including a pair of openable and closable clamping plates, and the clamping plates are provided with a plurality of movable clamping blocks rotatably connected to them, the movable clamping blocks forming the detection station.

[0006] Preferably, the feeding unit includes a third conveying mechanism and a transfer component, the transfer component being used to supply the lens on the third conveying mechanism to the detection unit, the third conveying mechanism being arranged side by side with the second conveying mechanism.

[0007] More preferably, the transfer component includes a support frame connecting the detection box and a gripping component disposed on the support frame, the gripping component being used to grip the lens, and an xz axis drive component connecting the gripping component and the support frame.

[0008] Preferably, the feeding unit is further provided with a shielding component, which includes a linear drive component and a shielding plate. The linear drive component is used to drive the shielding plate to cover the shielding lens of the feeding unit.

[0009] Preferably, the conveying unit includes an adsorption shaft and a rotating assembly, as well as a power component connecting the adsorption shaft and the rotating assembly. The adsorption shaft is used to pick up and place lenses, and the rotating assembly is used to drive the adsorption shaft to move between the detection unit and the first conveying mechanism and the second conveying mechanism.

[0010] Preferably, the first conveying mechanism, the second conveying mechanism, and the feeding unit are all provided with positioning components, which are used to limit the position of the lens.

[0011] Compared with the prior art, the beneficial effects of this application are as follows: After the lens inspection is completed, the transport unit can pick up the inspected lenses, place qualified lenses to the first transport mechanism and defective lenses to the second transport mechanism, thereby classifying the lenses so that they can be quickly picked up and trayed later, which can greatly improve the inspection efficiency, while the overall structure is compact. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a top view of this application; Figure 3 This is a schematic diagram of the structure during material loading in this application; Figure 4 This is a structural diagram of the material cutting process in this application.

[0013] In the picture: 10. Testing box; 20. Feeding unit; 210. Third conveying mechanism; 220. Transfer assembly; 221. X-axis drive cylinder; 222. Z-axis drive cylinder; 223. Gripping assembly; 30. Unloading unit; 310. First conveying mechanism; 320. Second conveying mechanism. 40. Detection unit; 400. Detection station; 410. Rotating platform; 420. Detection assembly; 430. Opening and closing assembly; 50. Conveying unit; 510. Adsorption shaft; 520. Rotating assembly; 530. Power unit; 60. Obstruction component; 70. Positioning component. Detailed Implementation

[0014] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0015] See Figures 1 to 4 To further elaborate on this application: Combination Figure 1 and Figure 2 A lens testing device includes a testing box 10, a feeding unit 20, and a discharging unit 30, as well as a testing unit 40 and a conveying unit 50 disposed within the testing box 10. The feeding unit 20 supplies lenses to the testing unit 40. The testing box 10 includes a support and a sealing plate that encloses the support. The feeding unit 20, the discharging unit 30, the testing unit 40, and the conveying unit 50 are all mounted on the support.

[0016] The unloading unit 30 includes a first conveying mechanism 310 for unloading qualified lenses and a second conveying mechanism 320 for unloading defective lenses. Both the first conveying mechanism 310 and the second conveying mechanism 320 are belt conveying mechanisms, which use two synchronous conveyor belts to support and transport the lenses to reduce the contact area with the lenses.

[0017] The transport unit 50 is located between the detection unit 40 and the first transport mechanism 310 and the second transport mechanism 320, and is used to place the lenses into the first transport mechanism 310 and the second transport mechanism 320 respectively. When the transport unit 50 picks up a qualified lens, it places the lens into the first transport mechanism 310; when the transport unit 50 picks up a defective lens, it places the lens into the second transport mechanism 320. This classifies the lenses after the detection unit 40 has completed its inspection, so that the lenses can be trayed later, thereby improving the overall work efficiency.

[0018] Combination Figure 2 and Figure 3 The detection unit 40 includes a rotatable rotating platform 410 and detection components 420, as well as detection stations 400 evenly distributed circumferentially on the rotating platform 410. The detection components 420 (421, 422, 423, 424) are used to detect the lenses within the detection stations 400 (400b, 400c, 400d, 400e). The rotating platform 410 is driven by a turntable motor at its bottom to achieve rotation. Figure 2The rotating platform 410 rotates counterclockwise. In this embodiment, there are a total of 6 detection stations 400, so the rotating platform 410 rotates 60 degrees (360° / 6) each time. Four detection stations 400 (400b, 400c, 400d, 400e) correspond one-to-one with the four vision modules of the detection component 420, and the remaining two detection stations 400 (400a, 400f) correspond to the feeding unit 20 (loading) and the conveying unit 50 (unloading), respectively, realizing the continuous flow of "loading-detection-unloading". The vision module includes vision cameras and light source components respectively located on both sides of the detection stations 400 (400b, 400c, 400d, 400e). Figure 3 The middle section (located on the top and bottom sides of the inspection station) is used to inspect for defects in the lenses (burrs, bright spots, sparkles, black spots, bubbles, scratches, and fingerprints, etc.).

[0019] Combination Figure 3 The rotating platform 410 is circumferentially distributed with several opening and closing components 430. Each opening and closing component 430 includes a pair of openable and closable clamping plates. Several movable clamping blocks are rotatably connected to the clamping plates, and the movable clamping blocks form the detection station 400. The clamping plates can be driven by a finger cylinder to achieve the opening and closing action, clamping the lens from the side and avoiding interference with the detection unit 40's detection of the lens. In this embodiment, two movable clamping blocks are provided on the inner side of each clamping plate. The movable clamping blocks are hinged to the clamping plates through a rotating shaft. The movable clamping blocks can rotate around the rotating shaft at a small angle and can automatically adjust the clamping angle according to the outer diameter of the lens, thereby adapting to the stable clamping of lenses of different sizes.

[0020] Combination Figure 2 and Figure 3 The feeding unit 20 includes a third conveying mechanism 210 and a transfer component 220. The transfer component 220 is used to supply lenses from the third conveying mechanism 210 to the detection unit 40. The third conveying mechanism 210 and the second conveying mechanism 320 are arranged side by side. The transfer component 220 is located at the top end of the third conveying mechanism 210 and is used to pick up lenses from the third conveying mechanism 210 and place them in the corresponding detection station 400 (400a). The third conveying mechanism 210 may have the same structure as the first conveying mechanism 310 and the second conveying mechanism 320.

[0021] Combination Figure 3In this embodiment, the transfer component 220 includes a support frame connected to the detection box 10, and a gripping component 223 disposed on the support frame. The gripping component 223 is used to grip the lens, and an xz-axis drive component is provided between the gripping component 223 and the support frame. Specifically, the gripping component 223 grips the side of the lens; the xz-axis drive component is used to drive the gripping component 223 to move the lens along the x-axis and z-axis. The xz-axis drive component includes an x-axis drive cylinder 221 and a z-axis drive cylinder 222. The x-axis drive cylinder 221 drives the gripping component 223 to move via the z-axis drive cylinder 222. This structure has low manufacturing cost.

[0022] Combination Figure 1 and Figure 2 To improve the accuracy of the detection by the detection unit 40, in this embodiment, the feeding unit is further provided with a shielding component 60. The shielding component 60 includes a linear drive component and a shielding plate. The linear drive component is used to drive the shielding plate to cover the shielding lens of the feeding unit. The linear drive component can be a cylinder. The shielding plate can shield the lens on the third conveying mechanism 210, preventing external dust and impurities from contaminating the lens and ensuring the lens is clean before detection.

[0023] Combination Figure 2 and Figure 4 In this embodiment, the conveying unit 50 includes an adsorption shaft 510 and a rotating assembly 520, as well as a power component 530 connecting the rotating assembly 520 and the adsorption shaft 510. The power component 530 is a cylinder used to drive the adsorption shaft 510 to move along the z-axis. The adsorption shaft 510 is provided with a suction cup for picking up and placing lenses. The rotating assembly 520 is used to drive the adsorption shaft 510 to move between the detection unit 40 and the first conveying mechanism 310 and the second conveying mechanism 320. The suction cup picks up the lens by adsorbing it with negative pressure. When the lens held by the opening and closing assembly moves with the rotating platform 410 to the detection station 400 (400f) corresponding to the conveying unit 50, the suction cup picks up the lens first. If the detection unit 40 determines that the lens is qualified, the rotating assembly 520 drives the suction cup to move the lens to the first conveying mechanism 310. If it is determined to be a defective lens, it is moved to the second conveying mechanism 320. The rotating assembly 520 can be a motor or a rotary cylinder.

[0024] Combination Figure 2 and Figure 3Each of the first conveying mechanism 310, the second conveying mechanism 320, and the feeding unit 20 is further equipped with a positioning component 70, which is used to limit the position of the lens. The positioning component 70 includes a pair of openable and closable limiting plates, which are arranged opposite to each other and driven by a cylinder. This prevents the lens from being difficult to pick up or grip due to tilting.

[0025] In one embodiment, a unloading mechanism is further included, which is used to unload lenses from the first conveying mechanism 310 and the second conveying mechanism 320 and place the lenses into corresponding material boxes; wherein, the unloading mechanism includes a first unloading assembly for unloading qualified lenses from the first conveying mechanism 310 and a second unloading assembly for unloading defective lenses from the second conveying mechanism 320. The first unloading assembly and the second unloading assembly can adopt existing unloading structures.

[0026] How this application works: The lenses are conveyed to the transfer assembly 220 via the third conveying mechanism 210. The transfer assembly 220 picks up the lenses from the third conveying mechanism 210 and places them one by one into the corresponding detection station 400 (400a). The rotating platform 410 rotates with the opening and closing assembly 430 to pick up the lenses from the transfer assembly 220. The lenses held by the opening and closing assembly 430 pass through the detection assembly 420 in sequence to complete the lens detection. When the lens rotates to the detection station 400 (400f) corresponding to the handling unit 50, the handling unit 50 picks up the lens and places it on the corresponding first conveying mechanism 310 or second conveying mechanism 320. The unloading mechanism then places the lenses on the first conveying mechanism 310 and the second conveying mechanism 320 into the corresponding material box.

Claims

1. A lens testing device, characterized in that: It includes a testing box, a feeding unit, and a unloading unit, as well as a testing unit and a conveying unit disposed within the testing box; the feeding unit is used to supply lenses to the testing unit; The unloading unit includes a first conveying mechanism for conveying qualified lenses and a second conveying mechanism for conveying defective lenses; The transport unit is located between the detection unit and the first transport mechanism and the second transport mechanism, and is used to place the lens in the first transport mechanism and the second transport mechanism respectively.

2. The lens testing device according to claim 1, characterized in that: The detection unit includes a rotatable rotating platform and detection components, as well as detection stations evenly distributed along the circumference of the rotating platform. The detection components are used to detect the lenses within the detection stations.

3. The lens testing device according to claim 2, characterized in that: The rotating platform is circumferentially distributed with several opening and closing components. Each opening and closing component includes a pair of openable and closable clamping plates. Several movable clamping blocks are rotatably connected to the clamping plates, and the movable clamping blocks together form the detection station.

4. The lens testing device according to claim 1, characterized in that: The feeding unit includes a third conveying mechanism and a transfer component. The transfer component is used to supply the lens on the third conveying mechanism to the detection unit. The third conveying mechanism is arranged side by side with the second conveying mechanism.

5. The lens testing device according to claim 4, characterized in that: The transfer component includes a support frame connecting the detection box and a gripping component mounted on the support frame. The gripping component is used to grip the lens, and an xz axis drive component is provided between the gripping component and the support frame.

6. The lens testing device according to claim 1, characterized in that: The feeding unit is also provided with a shielding component, which includes a linear drive component and a shielding plate. The linear drive component is used to drive the shielding plate to cover the shielding lens of the feeding unit.

7. The lens testing device according to claim 1, characterized in that: The conveying unit includes an adsorption shaft and a rotating assembly, as well as a power component connecting the adsorption shaft and the rotating assembly. The adsorption shaft is used to pick up and place lenses, and the rotating assembly is used to drive the adsorption shaft to move between the detection unit and the first conveying mechanism and the second conveying mechanism.

8. The lens testing device according to claim 1, characterized in that: The first conveying mechanism, the second conveying mechanism, and the feeding unit are all equipped with positioning components, which are used to limit the position of the lens.

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