Automatic detection device for uniformity of light-emitting surface of LED lamp

Abstract

The utility model relates to the technical field of LED lamp detection, in particular to an LED lamp light-emitting surface uniformity automatic detection device, which comprises a main body, the top of the main body is fixedly connected with a clamping assembly, the side surface of the main body is fixedly connected with a moving assembly, and the side surface of the moving assembly is fixedly connected with an optical measurement assembly. The servo motor is used for driving the threaded block to move on the lead screw, then the detection mechanism can move transversely, the high-precision ball screw transmission mechanism is adopted, the servo motor is matched, and the accurate movement of the detection shooting mechanism is achieved by controlling the rotation angle and direction of the servo motor. Fixing is achieved through telescopic adjustable clamping plates of the first telescopic rods, the clamping mechanism can have certain buffering performance by being matched with a buffering cushion for use, and damage to the lamp in the fixing process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting testing technology, specifically an automated testing device for the uniformity of the light-emitting surface of an LED lamp. Background Technology

[0002] LED lights are widely used due to their high efficiency, energy saving, and long lifespan. The uniformity of their light-emitting surface is an important indicator for measuring product quality.

[0003] Currently, LED lighting fixture testing devices cannot flexibly and quickly adjust their positions. Consequently, when testing different areas of the luminous surface, each movement requires a significant amount of time for adjustment and positioning, resulting in an excessively long testing process. Furthermore, continuous and stable movement is difficult to achieve, leading to interruptions or discontinuous data acquisition during testing. This not only affects the completeness and accuracy of the test results but may also necessitate repeated testing to compensate for interruptions, further wasting time and manpower. Additionally, current fixture clamps cannot firmly hold LED lights, resulting in uneven clamping force distribution and causing the lights to wobble or shift position during testing. Therefore, an automated LED luminous surface uniformity testing device is needed to address these issues. Utility Model Content

[0004] To address the current limitations of LED lighting fixture testing devices in flexibly and quickly adjusting their positions, which leads to lengthy adjustment and positioning times for each movement when testing different areas of the luminous surface, resulting in an excessively long testing process and difficulty in achieving continuous and stable movement, interruptions or discontinuous data acquisition occur during testing. This not only affects the integrity and accuracy of the test results but may also require repeated testing to compensate for interruptions, further wasting time and manpower. Furthermore, current fixture clamps cannot firmly hold LED lighting fixtures, resulting in uneven clamping force distribution and causing the fixtures to shake or shift position during testing. The purpose of this invention is to provide an automated testing device for the uniformity of the luminous surface of LED lights, thereby solving the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automated detection device for the uniformity of LED light emission surface includes a main body, a clamping component fixedly connected to the top of the main body, a moving component fixedly connected to the side of the main body, and an optical measurement component fixedly connected to the side of the moving component.

[0007] The clamping assembly includes a worktable, a bracket is fixedly connected to the top of the worktable, a first telescopic rod is installed inside the bracket, a clamping plate is fixedly connected to the output end of the first telescopic rod, and a cushioning pad is fixedly connected to the side of the clamping plate.

[0008] The moving component includes a mounting frame, a servo motor is mounted on the side of the mounting frame, a lead screw is fixedly connected to the output end of the servo motor, and a threaded block is threadedly connected to the side of the lead screw.

[0009] The optical measurement assembly includes a mounting plate, a second telescopic rod is mounted on the side of the mounting plate, and the threaded block is fixedly connected to the mounting plate.

[0010] As a preferred embodiment of this utility model, two of the bracket, the first telescopic rod, the clamping plate, and the buffer pad are provided.

[0011] As a preferred embodiment of this utility model, the output end of the second telescopic rod is fixedly connected to a base, the bottom of the base is fixedly connected to a high-resolution industrial camera, and the side of the base is fixedly connected to an aperture.

[0012] As a preferred embodiment of this utility model, the mounting bracket is internally fixedly connected to a slide rail, and a slider is slidably connected to the side of the slide rail, with the slider being fixedly connected to the mounting plate.

[0013] As a preferred embodiment of this utility model, a bearing is fixedly connected inside the mounting bracket, and the lead screw extends into the interior of the bearing.

[0014] As a preferred embodiment of this utility model, the main body includes a support frame, a support rod is fixedly connected to the bottom of the support frame, and a foot is fixedly connected to the bottom of the support rod.

[0015] As a preferred embodiment of this utility model, a vertical rod is fixedly connected to the top of the support frame, an operation interface is fixedly connected to the side of the vertical rod, and a support plate is fixedly connected to the top of the support frame.

[0016] As a preferred embodiment of this utility model, a working indicator light is fixedly connected to the side of the support plate, and a housing is fixedly connected to the bottom of the support plate, with a programmable logic controller installed inside the housing.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by using a servo motor to drive the threaded block to move on the lead screw, the detection mechanism can be moved laterally. This high-precision ball screw transmission mechanism, in conjunction with a servo motor, achieves precise movement of the detection and imaging mechanism by controlling the rotation angle and direction of the servo motor. This allows for point-by-point or line-by-line scanning detection of different areas of the light-emitting surface. The height of the high-resolution industrial camera can be controlled by extending and retracting the second telescopic rod to ensure the imaging quality of the imaging equipment at different height positions.

[0019] 2. In this utility model, the fixing is achieved by using the telescopic adjustable clamp of the first telescopic rod. With the use of the buffer pad, the clamping mechanism can have a certain buffering performance, avoiding damage to the lamp during the fixing process. This ensures that the light-emitting surface of the LED lamp is in the same position and angle each time it is placed. This ensures that the imaging device can be aligned with the same area of ​​the light-emitting surface each time it is detected, thus improving the repeatability and reliability of the detection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model;

[0022] Figure 3 This is a schematic diagram of the optical measurement component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the clamping component structure of this utility model.

[0024] In the diagram: 1. Main body; 101. Support frame; 102. Support rod; 103. Foot; 104. Vertical rod; 105. Operating interface; 106. Support plate; 107. Work indicator light; 108. Housing; 109. Programmable logic controller; 2. Clamping assembly; 201. Worktable; 202. Bracket; 203. First telescopic rod; 204. Clamping plate; 205. Buffer pad; 3. Moving assembly; 301. Mounting frame; 302. Servo motor; 303. Lead screw; 304. Threaded block; 305. Slide rail; 306. Slider; 307. Bearing; 4. Optical measurement assembly; 401. Mounting plate; 402. Second telescopic rod; 403. Base; 404. High-resolution industrial camera; 405. Aperture. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0027] An automated detection device for the uniformity of LED light emission surface includes a main body 1, a clamping component 2 fixedly connected to the top of the main body 1, a moving component 3 fixedly connected to the side of the main body 1, and an optical measuring component 4 fixedly connected to the side of the moving component 3.

[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the clamping assembly 2 includes a worktable 201, a bracket 202 fixedly connected to the top of the worktable 201, a first telescopic rod 203 installed inside the bracket 202, a clamping plate 204 fixedly connected to the output end of the first telescopic rod 203, and a buffer pad 205 fixedly connected to the side of the clamping plate 204. The moving assembly 3 includes a mounting frame 301, a servo motor 302 mounted on the side of the mounting frame 301, a lead screw 303 fixedly connected to the output end of the servo motor 302, and a threaded block 304 threadedly connected to the side of the lead screw 303. The optical measurement assembly 4 includes a mounting plate 401, a second telescopic rod 402 mounted on the side of the mounting plate 401, and the threaded block 304 fixedly connected to the mounting plate 401. By using high-resolution imaging equipment and a high-precision mechanical moving mechanism, it can accurately measure the brightness information of the luminous surface, with high detection accuracy, and can meet the requirements of high-precision detection.

[0029] The system includes two components: a bracket 202, a first telescopic rod 203, a clamping plate 204, and a buffer pad 205. The output end of the second telescopic rod 402 is fixedly connected to a base 403. A high-resolution industrial camera 404 is fixedly connected to the bottom of the base 403. An aperture 405 is fixedly connected to the side of the base 403. A slide rail 305 is fixedly connected inside the mounting bracket 301. A slider 306 is slidably connected to the side of the slide rail 305. The slider 306 is fixedly connected to the mounting plate 401. A bearing 307 is fixedly connected inside the mounting bracket 301. A lead screw 303 extends into the bearing 307. The adjustable clamping plate 204 of the first telescopic rod 203 is used for fixation. The use of the buffer pad 205 provides a certain buffering performance for the clamping mechanism, preventing damage to the lamp during the fixing process.

[0030] In this embodiment, as Figure 1 and Figure 4 As shown, the main body 1 includes a support frame 101. A support rod 102 is fixedly connected to the bottom of the support frame 101, and a foot 103 is fixedly connected to the bottom of the support rod 102. A vertical rod 104 is fixedly connected to the top of the support frame 101, and an operation interface 105 is fixedly connected to the side of the vertical rod 104. A support plate 106 is fixedly connected to the top of the support frame 101, and a work indicator light 107 is fixedly connected to the side of the support plate 106. A housing 108 is fixedly connected to the bottom of the support plate 106. A programmable logic controller 109 is installed inside the housing 108. The programmable logic controller 109 serves as the control core of the entire detection device, responsible for coordinating the actions of various components. It receives instructions from the operator, such as starting detection and stopping detection, and controls the imaging equipment's shooting, the movement of the mobile platform, and data acquisition operations according to a preset program. The operator can input detection parameters through this interface.

[0031] The workflow of this utility model is as follows: When using the automated LED lamp luminous surface uniformity detection device designed in this scheme, the operator places the LED lamp to be tested on the worktable 201. The adjustable clamp 204 of the first telescopic rod 203 is used to fix the LED lamp. The operator inputs detection parameters, such as the detection area and resolution, through the operation interface 105 and starts the detection program. First, the servo motor 302 drives the threaded block 304 to move on the lead screw 303, and the extension and retraction of the second telescopic rod 402 controls the height of the high-resolution industrial camera 404, thereby adjusting the position of the high-resolution industrial camera 404. Subsequently, a high-resolution industrial camera 404 can be controlled to capture images of the LED light-emitting surface. Image processing software is used to preprocess the images and extract the brightness information of the light-emitting surface. The position of the high-resolution industrial camera 404 can be controlled to scan different areas of the light-emitting surface point by point or line by line. After the entire light-emitting surface is inspected, the collected brightness information is calculated and analyzed according to the preset uniformity evaluation standard to generate an inspection report. The inspection results are displayed to the operator through the operation interface 105. The operator judges whether the uniformity of the LED light-emitting surface meets the requirements based on the inspection results. For lights that do not meet the requirements, further adjustments or repairs can be made.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated detection device for the uniformity of LED light-emitting surface, comprising a main body (1), characterized in that: A clamping assembly (2) is fixedly connected to the top of the main body (1), a moving assembly (3) is fixedly connected to the side of the main body (1), and an optical measuring assembly (4) is fixedly connected to the side of the moving assembly (3). The clamping assembly (2) includes a worktable (201), a bracket (202) is fixedly connected to the top of the worktable (201), a first telescopic rod (203) is installed inside the bracket (202), a clamping plate (204) is fixedly connected to the output end of the first telescopic rod (203), and a cushioning pad (205) is fixedly connected to the side of the clamping plate (204). The moving component (3) includes a mounting bracket (301), a servo motor (302) is mounted on the side of the mounting bracket (301), a lead screw (303) is fixedly connected to the output end of the servo motor (302), and a threaded block (304) is threadedly connected to the side of the lead screw (303). The optical measurement assembly (4) includes a mounting plate (401), a second telescopic rod (402) is mounted on the side of the mounting plate (401), and the threaded block (304) is fixedly connected to the mounting plate (401).

2. The automated detection device for the uniformity of LED lamp light-emitting surface according to claim 1, characterized in that, Two of the bracket (202), the first telescopic rod (203), the clamp (204), and the cushioning pad (205) are provided.

3. The automated detection device for the uniformity of LED lamp light-emitting surface according to claim 1, characterized in that, The output end of the second telescopic rod (402) is fixedly connected to a base (403), the bottom of the base (403) is fixedly connected to a high-resolution industrial camera (404), and the side of the base (403) is fixedly connected to an aperture (405).

4. The automated detection device for the uniformity of LED light-emitting surface according to claim 1, characterized in that, The mounting bracket (301) is internally fixedly connected to a slide rail (305), and a slider (306) is slidably connected to the side of the slide rail (305). The slider (306) is fixedly connected to the mounting plate (401).

5. The automated detection device for the uniformity of LED lamp light-emitting surface according to claim 1, characterized in that, The mounting bracket (301) has a bearing (307) fixedly connected inside, and the lead screw (303) extends into the interior of the bearing (307).

6. The automated detection device for the uniformity of the light-emitting surface of an LED lamp according to claim 1, characterized in that, The main body (1) includes a support frame (101), a support rod (102) is fixedly connected to the bottom of the support frame (101), and a foot (103) is fixedly connected to the bottom of the support rod (102).

7. The automated detection device for the uniformity of LED lamp light-emitting surface according to claim 6, characterized in that, A vertical rod (104) is fixedly connected to the top of the support frame (101), an operation interface (105) is fixedly connected to the side of the vertical rod (104), and a support plate (106) is fixedly connected to the top of the support frame (101).

8. The automated detection device for the uniformity of the light-emitting surface of an LED lamp according to claim 7, characterized in that, A working indicator light (107) is fixedly connected to the side of the support plate (106), and a housing (108) is fixedly connected to the bottom of the support plate (106). A programmable logic controller (109) is installed inside the housing (108).

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