VR lens appearance contour measurement and detection equipment

Abstract

The utility model belongs to the technical field of lens detection equipment, and discloses VR lens appearance contour measurement and detection equipment which comprises a concave camera, the right end of the concave camera is rotatably connected with a first fine adjustment platform, the right end of the first fine adjustment platform is slidably connected with a first support, and the bottom end of the first support is fixedly provided with a box body. A second support is fixedly arranged in the box body, a second fine adjustment platform is fixedly arranged on the outer side of the second support, a second lens is rotationally connected to the outer side of the second fine adjustment platform, a convex camera is fixedly arranged at the bottom end of the second lens, and a servo module is fixedly arranged at the top end of the box body. And a sliding block is slidably connected to the outer side of the servo module. The lens feeding device has the advantages that the efficiency can be high, the speed is high, and lenses can be conveniently placed into the discharging box.

Description

Technical Field

[0001] The utility model relates to the field of VR lens appearance contour measurement and detection equipment, specifically to a curved lens appearance contour size measurement and detection used for AR / VR and other products. A specially corresponding optical solution and visual detection system are used to take pictures and detect VR lenses, check the size of the convex and concave contours of VR lens products, and compare the photographed images with CAD template drawings to determine whether the process specification requirements are met. Background Art

[0002] In the conventional VR lens process, after the lens is processed by CNC machine tools to mill out the curved surface contour, it is necessary to measure whether the outer contour dimensions meet the standards. Usually the detection standard is ±50um. The naked eye cannot determine whether the contour exceeds the limit, so the contour of the product after CNC needs to be measured with the help of CMM.

[0003] The patent specification with application number 202123173475.5 discloses an automatic detection device for the appearance size of optical lenses, including a frame, a detection box and an electrical control box respectively arranged at the upper and lower ends of the frame, and a parallel loading belt conveyor and a unloading belt conveyor are installed in the detection box; an automatic detection device is provided between the loading belt conveyor and the unloading belt conveyor, and a dual-channel material moving device is provided above the loading belt conveyor and the unloading belt conveyor.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned automatic detection equipment for the appearance dimensions of optical lenses has the following problems: the measurement efficiency of this equipment is low, and it takes 18 minutes to get a result after measuring a product. There are hidden dangers that cannot be discovered in time when the equipment fails and processing errors occur. The equipment introduction cost is high and the production efficiency is low. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a VR lens appearance profile measurement and detection device, which has the advantages of high efficiency, high speed, and the ability to conveniently place the lens into a blanking box.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a VR lens appearance contour measurement and detection device, comprising a concave camera, the right end of the concave camera is rotatably connected to a first fine-tuning platform, the right end of the first fine-tuning platform is slidably connected to a first bracket, the bottom end of the first bracket is fixedly provided with a box, the interior of the box is fixedly provided with a second bracket, the outer side of the second bracket is fixedly provided with a second fine-tuning platform, the outer side of the second fine-tuning platform is rotatably connected to a second lens, the bottom end of the second lens is fixedly provided with a convex camera, the top end of the box is fixedly provided with a servo module, and the outer side of the servo module is slidably connected to a slider.

[0007] Preferably, a support frame is fixedly disposed on the outer side of the first bracket, and a first annular light source is fixedly disposed on the front end of the support frame.

[0008] Preferably, a slot is formed at the top of the box body, and a second annular light source is fixedly disposed inside the slot of the box body.

[0009] Preferably, a circular slot is provided inside the first fine-tuning platform, and a second threaded rod is rotatably connected inside the circular slot of the first fine-tuning platform.

[0010] Preferably, the second threaded rod is connected through the first bracket, and a rotating block is fixedly provided on the top end of the second threaded rod.

[0011] Preferably, a profiling jig is fixedly provided at the rear end of the second fixing plate, a material receiving box is pressed against the bottom end of the profiling jig, and the material receiving box is fixed at the top end of the box body.

[0012] Preferably, a fixing frame is fixedly provided at the bottom end of the box body, and a roller is fixedly provided at the bottom end of the fixing frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] When used in conjunction with the utility model, the equipment can transfer the product from the loading position to the front detection station and the back detection station through the detection platform. After CCD shooting and calculation with the CAD drawing contour matching algorithm, the result is determined, and then the product is transferred to the unloading position. The total time consumption is 6s. The structure is simple and the measurement accuracy is high. The measurement efficiency is greatly improved while reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall side structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first bracket of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the profiling fixture of the utility model.

[0019] In the figure: 1. concave camera; 2. first fine-tuning platform; 3. first lens; 4. first annular light source; 5. second annular light source; 6. material receiving box; 7. servo module; 8. box body; 9. profiling fixture; 10. roller; 11. first bracket; 12. second fine-tuning platform; 13. second lens; 14. convex camera; 15. slider; 16. second bracket; 17. support frame; 18. rotating block; 19. second threaded rod; 20. fixing frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 4 As shown, the utility model provides a VR lens appearance profile measurement and detection device, including a concave camera 1, the right end of the concave camera 1 is rotatably connected to a first fine-tuning platform 2, the concave camera 1 and the first lens 3 are installed on the first fine-tuning platform 2, and the concave camera 1 and the first lens 3 can be adjusted in the XZ and YZ angles in the horizontal direction by adjusting the first fine-tuning platform 2, so that the camera target surface is relatively parallel to the product profile, the first fine-tuning platform 2 includes a rotating slide and an angle swing slide, the rotating slide can be adjusted by a micrometer to realize XZ direction rotation, and the angle swing slide can be adjusted by a micrometer to realize YZ direction rotation, and the combination of the two can realize multi-dimensional angle adjustment in the XZ and YZ directions. The right end of the first fine-tuning platform 2 is slidably connected with the first bracket 11, the bottom end of the first bracket 11 is fixed with a box body 8 through integral molding, the interior of the box body 8 is fixed with a second bracket 16 through integral molding, the outer side of the second bracket 16 is fixedly provided with a second fine-tuning platform 12, the outer side of the second fine-tuning platform 12 is rotatably connected with a second lens 13, the bottom end of the second lens 13 is fixed with a convex camera 14 through integral molding, the top of the box body 8 is fixed with a servo module 7 through welding, the outer side of the servo module 7 is slidably connected with a slider 15, the outer side of the first bracket 11 is fixed with a support frame 17 through welding, and the front end of the support frame 17 is fixed with a first An annular light source 4 and a slot are provided at the top of the box body 8, a second annular light source 5 is fixedly arranged inside the slot of the box body 8, a circular slot is provided inside the first fine-tuning platform 2, a second threaded rod 19 is rotatably connected inside the circular slot of the first fine-tuning platform 2, the second threaded rod 19 is penetrated and connected with the first bracket 11, a rotating block 18 is fixed to the top of the second threaded rod 19 through integral molding, the rotating block 18 is controlled to rotate by rotating the second threaded rod 19, and the first fine-tuning platform 2 is further driven to move downward, and since the concave camera 1 and the first lens 3 are installed on the first fine-tuning platform 2, the concave camera 1 and the first lens 3 move synchronously with the first fine-tuning platform 2.

[0022] The rear end of the slider 15 is fixed with a profiling jig 9 by integral molding, and the bottom end of the profiling jig 9 is pressed against a receiving box 6, which is fixed to the top of the box body 8 by integral molding. The product is received by the receiving box 6, and then the product to be tested is placed in the profiling jig 9 and moves with the moving axis through the moving axis of the servo module 7. The bottom end of the box body 8 is fixed with a fixing frame 20 by welding, and the bottom end of the fixing frame 20 is fixed with a roller 10 by welding.

[0023] Workflow and principle:

[0024] A VR lens appearance profile measurement and detection device includes a detection platform and a detection and measurement station. The detection platform is used to place products and move products from loading and unloading positions to the detection station. After the detection is completed, it returns to the loading and unloading positions, and then puts the products into a receiving box 6. The detection and measurement station includes a front measurement module and a back measurement module. The convex and concave profiles of the curved product are photographed by the front measurement module and the back measurement module. The photographed images are compared with CAD template drawings. The contours of the two are compared and the results are output through an algorithm, thereby realizing the appearance profile measurement of the VR lens. The detection platform includes a moving axis and a profiling fixture 9. The profiling fixture 9 is processed according to the profiling of the product 3D drawing. The convex and concave profiles are exposed by supporting the product feature area. The profiling fixture 9 is installed on the moving axis, and the product to be tested is placed on the profiling fixture. 9 moves with the moving axis, the measuring station includes a detection mechanism and a light source assembly, the detection mechanism includes a first fine-tuning platform 2, a concave camera 1 and a first lens 3, the concave camera 1 and the first lens 3 are installed on the first fine-tuning platform 2, the concave camera 1 and the first lens 3 can be adjusted in the XZ and YZ angles in the horizontal direction by adjusting the first fine-tuning platform 2, the second lens 13 and the convex camera 14 can be adjusted in the XZ and YZ angles in the horizontal direction by adjusting the second fine-tuning platform 12, so that the camera target surface is relatively parallel to the product contour, the first fine-tuning platform 2 and the second fine-tuning platform 12 respectively include a rotating slide and an angle swing slide, the rotating slide can be adjusted by a micrometer to realize XZ direction rotation, the angle swing slide can be adjusted by a micrometer to realize YZ direction rotation, and the combination of the two can realize XZ and YZ direction multi-dimensional angle adjustment. The second fine-tuning platform 12 and the first fine-tuning platform 2 are installed on the lifting slide to adjust the working height of the camera. The measuring station includes a front measurement module and a back measurement module, which are mirror images and respectively detect the convex and concave contours of the curved product. The detection platform is located between the detection mechanism and the light source assembly during detection, and the product contour is presented through back lighting.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A VR lens appearance profile measurement and detection device, comprising a concave camera (1), characterized in that: The right end of the concave camera (1) is rotatably connected to a first fine-tuning platform (2), the right end of the first fine-tuning platform (2) is slidably connected to a first bracket (11), a box (8) is fixedly arranged at the bottom end of the first bracket (11), a second bracket (16) is fixedly arranged inside the box (8), a second fine-tuning platform (12) is fixedly arranged on the outside of the second bracket (16), a second lens (13) is rotatably connected to the outside of the second fine-tuning platform (12), a convex camera (14) is fixedly arranged at the bottom end of the second lens (13), a servo module (7) is fixedly arranged at the top end of the box (8), and a slider (15) is slidably connected to the outside of the servo module (7).

2. The VR lens appearance profile measurement and detection device according to claim 1, characterized in that: A support frame (17) is fixedly arranged on the outer side of the first bracket (11), and a first annular light source (4) is fixedly arranged on the front end of the support frame (17).

3. The VR lens appearance profile measurement and detection device according to claim 1, characterized in that: A slot is provided at the top of the box body (8), and a second annular light source (5) is fixedly arranged inside the slot of the box body (8).

4. The VR lens appearance profile measurement and detection device according to claim 1, characterized in that: A circular slot is provided inside the first fine-tuning platform (2), and a second threaded rod (19) is rotatably connected inside the circular slot of the first fine-tuning platform (2).

5. The VR lens appearance profile measurement and detection device according to claim 4, characterized in that: The second threaded rod (19) is connected through the first bracket (11), and a rotating block (18) is fixedly arranged at the top end of the second threaded rod (19).

6. The VR lens appearance profile measurement and detection device according to claim 1, characterized in that: A profiling jig (9) is fixedly provided at the rear end of the sliding block (15), and a material receiving box (6) is pressed against the bottom end of the profiling jig (9), and the material receiving box (6) is fixed at the top end of the box body (8).

7. The VR lens appearance profile measurement and detection device according to claim 6, characterized in that: A fixing frame (20) is fixedly arranged at the bottom end of the box body (8), and a roller (10) is fixedly arranged at the bottom end of the fixing frame (20).

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