A fixture for detecting obstructions in instrument panel cover windows

By integrating a CCD detection lens into the inspection fixture, the problem of misjudgment in the traditional instrument cover window inspection was solved, and the accurate identification and automated analysis of the window position were realized, thus improving the inspection accuracy and efficiency.

CN224455693UActive Publication Date: 2026-07-03YUYAO RUIQI ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUYAO RUIQI ELECTRONICS CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-03

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Abstract

This utility model discloses a fixture for detecting occlusion of instrument cover windows, relating to the field of inspection fixtures. The fixture includes: a workbench frame, a positioning unit, a display, a CCD sensor, a computer host, and a test switch. The positioning unit is mounted on the workbench frame and is used to position and fix the test product. The display and CCD sensor are mounted on the workbench frame, the computer host is located at the bottom of the workbench frame, and the test switch is located on the workbench frame. This fixture, by integrating a CCD sensor, can identify the position of the window and output specific values ​​(such as offset and occlusion area), providing data support for process optimization and overcoming the limitation of traditional inspection tools that can only make qualitative judgments.
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Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, specifically a tooling for detecting obstructions in the viewing window of an instrument cover. Background Technology

[0002] In the field of instrument manufacturing, the quality inspection of instrument cover windows is a crucial step in ensuring the overall performance and reliability of the instrument. As a vital window for information exchange between the instrument and the outside world, the position and any obstructions to the window directly affect the clarity and accuracy of the displayed information, thus significantly impacting data acquisition by operators and the monitoring of equipment operation.

[0003] Traditionally, the inspection of instrument cover windows mainly relies on a combination of inspection tools and manual visual inspection. However, traditional inspection tools have limited functionality, only able to roughly determine whether there is a positional deviation or obstruction of the window, but unable to accurately obtain the specific numerical value of the window's position. Manual visual inspection is greatly affected by the subjective factors of the inspectors. Different inspectors have differences in vision, work experience, and judgment standards, which inevitably leads to deviations in the inspection results of the same window and results in misjudgments. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a testing fixture that solves the problems of traditional testing methods, which can only roughly determine whether there is a positional deviation or obstruction of the window, cannot accurately obtain the specific value of the window's position, and suffer from misjudgments due to differences in human visual perception.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A fixture for detecting obstruction of an instrument cover window includes:

[0006] Workbench frame;

[0007] A positioning unit is mounted on the workbench frame and is used to position and fix the test product.

[0008] The display is mounted on the workbench frame;

[0009] A CCD detection lens is mounted on the worktable frame;

[0010] The computer host is located at the bottom of the workbench frame;

[0011] A test switch is mounted on the workbench frame.

[0012] Preferably, the positioning unit includes:

[0013] The light panel is fixedly connected to the workbench frame;

[0014] A fixed fixture is installed on the lamp plate.

[0015] Preferably, a mounting base is fixedly connected to the workbench frame, and a protective cover is movably engaged on the mounting base.

[0016] Preferably, the protective cover is provided with a fixing component, which is used to fix the mounting base and the protective cover.

[0017] Preferably, the fixing component includes:

[0018] The insertion rod is slidably connected within the mounting base and the protective cover;

[0019] The circular piece is fixedly connected to the insertion rod;

[0020] A spring is fixedly connected between the disc and the protective cover.

[0021] Preferably, the CCD detection lens is installed directly above the lamp panel. The CCD detection lens is used to focus and capture images of the cover window and UI interface, convert light signals into electrical signals, and generate digital images for subsequent analysis.

[0022] Preferably, the computer host is placed in the lower left corner of the workbench. The computer host is used to run dedicated detection software, control the CCD lens to acquire images, analyze data, and output detection results.

[0023] Preferably, the test switch is installed in the lower left corner of the workbench, and the test switch is used to trigger the CCD inspection process and start image acquisition and analysis.

[0024] Its beneficial effects are as follows:

[0025] This occlusion detection fixture for instrument cover windows integrates a CCD detection lens to identify the window position and output specific values ​​(such as offset and occlusion area), providing data support for process optimization and overcoming the limitations of traditional inspection tools that can only make qualitative judgments. At the same time, the use of automated CCD inspection technology shortens the inspection time for a single piece, reduces misjudgments caused by differences in human visual inspection, and improves production efficiency and inspection accuracy. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the CCD detection lens assembly structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the protective cover structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.

[0031] In the diagram: 1. Monitor; 2. CCD detection lens; 3. Fixture; 4. Lamp board; 5. Computer host; 6. Test switch; 7. Workbench frame; 8. Mounting base; 81. Protective cover; 9. Fixing component; 91. Insert rod; 92. Circular piece; 93. Spring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] This utility model discloses a fixture for detecting occlusion of an instrument cover window, according to the attached... Figure 1-2 As shown, it includes:

[0035] The workbench frame 7, as the main support structure of the tooling, is assembled from aluminum alloy profiles (1200mm long × 1200mm high × 800mm wide), providing a stable and lightweight installation base.

[0036] The positioning unit is set on the workbench frame 7 and is used to position and fix the test product;

[0037] Display 1 is set on the workbench frame 7. The function of display 1 is to display the detection results, raw images and operation interface in real time. It also supports multi-window display to facilitate monitoring by operators.

[0038] CCD detection lens 2 is set on the workbench frame 7 and installed directly above the light panel, vertically focusing to capture the cover window and UI interface;

[0039] The computer host 5 is located at the bottom of the workbench frame 7;

[0040] Test switch 6 is set on the workbench frame 7. Test switch 6 is used to trigger the CCD inspection process with one click and start image acquisition and analysis.

[0041] According to the appendix Figure 1-2 As shown, adjustments will be made according to the specific records. Furthermore, the positioning unit includes:

[0042] The light board 4 is fixedly connected to the workbench frame 7. The function of the light board 4 is to provide uniform backlight illumination, eliminate reflections and shadows on the cover plate surface, and ensure that the CCD lens captures images clearly.

[0043] Fixture 3 is set on the light plate 4. Fixture 3 is used to accurately position the cover plate to be tested and prevent image distortion caused by displacement during the test.

[0044] According to the appendix Figure 3-4 As shown in the specific record, further, a mounting base 8 is fixedly connected to the workbench frame 7. The mounting base 8 is used to provide a place for the protective cover 81 to be movably attached. The protective cover 81 is movably attached to the mounting base 8. The protective cover 81 is used to protect the CCD detection lens 2 and prevent it from being damaged by impact.

[0045] According to the appendix Figure 3-4 As shown, the protective cover 81 is provided with a fixing component 9. The fixing component 9 is used to fix the mounting base 8 and the protective cover 81. The fixing component 9 includes: a plug rod 91, a disc 92, and a spring 93. The plug rod 91 is slidably connected in the mounting base 8 and the protective cover 81. The disc 92 is fixedly connected to the plug rod 91. The spring 93 is fixedly connected between the disc 92 and the protective cover 81. The spring 93 provides elastic force to the plug rod 91, so that the plug rod is fixed in the mounting base 8.

[0046] According to the appendix Figure 1 As shown, the computer host 5 is placed in the lower left corner of the workbench. The computer host 5 is used to run dedicated detection software, control the CCD lens to acquire images, analyze data, and output detection results. The integrated design reduces space occupation, and the software algorithm realizes automated judgment and improves detection efficiency.

[0047] According to the appendix Figure 2 As shown, it is particularly important to emphasize that the CCD detection lens 2 is installed directly above the lamp panel. The CCD detection lens 2 is used to focus and capture images of the cover window and UI interface, convert light signals into electrical signals, and generate digital images for subsequent analysis. The test switch 6 is installed in the lower left corner of the workbench. The test switch 6 is used to trigger the CCD detection process and start image acquisition and analysis.

[0048] Working principle: When using this device, the operator places the cover plate into the fixing fixture 3, ensuring that it is aligned with the CCD lens 2, lights up the lamp panel 4 to provide uniform backlighting and eliminate reflections, and then presses the test switch 6. The CCD detection lens 2 captures an image and transmits it to the computer host 5. The computer host 5 runs an algorithm to identify the position of the character icons and the occlusion situation, generates the test results, and displays the results on the monitor 1 (such as "Pass" indicating qualified and "NG" indicating unqualified). At the same time, the computer host 5 stores the data.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shroud detection tooling for an instrument cover plate window, characterized by, include: Workbench frame (7); A positioning unit is provided on the workbench frame (7) and is used to position and fix the test product; A display (1) is mounted on the workbench frame (7); CCD detection lens (2) is mounted on the workbench frame (7); The computer host (5) is located at the bottom of the workbench frame (7); Test switch (6) is set on the workbench frame (7).

2. A shroud detection tool for an instrument panel cover window as defined in claim 1, wherein The positioning unit includes: The lamp panel (4) is fixedly connected to the workbench frame (7); The fixture (3) is set on the lamp plate (4).

3. A shroud detection tool for an instrument panel cover window as defined in claim 1, wherein A mounting base (8) is fixedly connected to the workbench frame (7), and a protective cover (81) is movably attached to the mounting base (8).

4. A shroud detection tool for an instrument panel cover window as defined in claim 3, wherein The protective cover (81) is provided with a fixing component (9), which is used to fix the mounting base (8) and the protective cover (81).

5. A shroud detection tool for an instrument panel cover window as defined in claim 4, wherein, The fixing component (9) includes: The insertion rod (91) is slidably connected within the mounting base (8) and the protective cover (81); The disc (92) is fixedly connected to the insert (91); A spring (93) is fixedly connected between the disc (92) and the protective cover (81).

6. The occlusion detection fixture for an instrument cover window according to claim 1, characterized in that, The CCD detection lens (2) is installed directly above the lamp panel. The CCD detection lens (2) is used to focus and capture images of the cover window and UI interface, convert light signals into electrical signals, and generate digital images for subsequent analysis.

7. A shroud detection tool for an instrument panel cover window as defined in claim 1, wherein The computer host (5) is placed in the lower left corner of the workbench. The computer host (5) is used to run special detection software, control the CCD lens to acquire images, analyze data, and output detection results.

8. A shroud detection tool for an instrument panel cover window as defined in claim 1, wherein, The test switch (6) is installed in the lower left corner of the workbench. The test switch (6) is used to trigger the CCD detection process and start image acquisition and analysis.