Deep hole redundancy inspection device
By using a method of combining white LED sunlight light sources with optical fibers in spacecraft products, the problem of difficulty in detecting excess in fine deep holes and narrow gaps in the prior art is solved, and the efficient and low-risk detection effect of excess is achieved.
Patent Information
- Application Number
- CN202420937791.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The prior art is difficult to effectively detect the fine deep holes and excesses in narrow gaps in spacecraft products, especially when the aperture diameter is less than Φ8mm or the hole depth exceeds 10mm, there are obvious shortcomings in visual observation and strong light flashlight filling methods.
Using a method of combining a white LED sunlight source with optical fibers, the light beam is shot into the fiber core, and soft light is emitted in the deep holes by reflecting and refraction. The different diameters and lengths of the optical fibers are used to adapt to the detection of excesses of different depths and apertures.
It realizes efficient detection of fine deep holes and excesses in narrow gaps, reduces quality risks, improves detection efficiency, and the material of optical fibers is soft and does not easily damage the product surface.
Smart Images
Figure CN222579935U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a deep hole excess matter inspection device, belonging to the technical field of deep hole excess matter detection of spacecraft products. Background Art
[0002] Spacecraft products have very strict requirements for the control of excess materials, especially for manned spacecraft products, where the control and inspection of excess materials is particularly important. Taking structural panels and satellite structural parts as an example, the combined processing, drilling, tapping, installation of wire screw sleeves, gluing and other links are prone to produce excess materials. The excess materials mainly include residual glue left in gluing, residual tails of wire screw sleeves, and debris generated in machine tool processing. The presence of excess materials in deep holes, especially when they remain in hidden parts, small deep holes, and narrow gaps, are not easy to be found. If they fall into the satellite during the subsequent lifting, flipping, transportation, mechanical testing, and launch of the spacecraft product, it will cause fatal damage to the spacecraft product.
[0003] At present, the inspection of excess objects in deep holes of spacecraft products is usually carried out by visual observation supplemented by flashlight fill light. This method has the following disadvantages: 1) It is limited by the hole diameter and hole depth: when the hole diameter is ≤Φ8mm, or the hole diameter is greater than Φ8mm and the hole depth is greater than 10mm, it is impossible to effectively observe the situation inside the hole by visual observation alone; 2) When using a strong flashlight to fill light, due to the strong light, the point light source will produce a dazzling light spot, resulting in a large contrast between light and dark inside and outside the hole, and the situation inside the hole cannot be effectively observed; 3) Due to the characteristics of the metal material of spacecraft products, strong reflections will be generated when irradiated with a strong flashlight, which is harmful to the eyes and easy to cause visual fatigue; 4) When using a strong flashlight to illuminate, the light irradiation angle needs to be repeatedly adjusted to observe the inside of the deep hole, and the work efficiency is low.
[0004] Based on the above problems, existing detection methods are difficult to meet the deep hole excess material detection process of spacecraft structural products. Utility Model Content
[0005] The technical problem solved by the utility model is: in view of the problems that the existing means of supplementary lighting in the process of detecting excess objects in deep holes of spacecraft structural products have light intensity, large light and dark contrast inside and outside the hole, strong reflection, easy visual fatigue, low detection efficiency, etc., a deep hole excess object inspection device is proposed.
[0006] The utility model solves the above technical problems through the following technical solutions: a deep hole excess material inspection device, including a light guide fiber, a conversion sleeve, an LED lamp, a light control button, a light control module, a battery, a charging and discharging module, a charging socket and a shell;
[0007] The light guide fiber is installed at one end of the conversion sleeve, and the shell is installed at the other end of the conversion sleeve. The LED lamp, the light control module, the battery, the charge and discharge module, and the charging socket are installed in the conversion sleeve and the shell, and the light control button is set in the window on the shell; the LED lamp is connected to the light control button for controlling the LED lamp switch and brightness adjustment, the light control button is connected to the light control module, and the light control module is connected to the battery for powering the LED lamp; the battery is connected to the charge and discharge module for controlling the battery charging and discharging, and the charge and discharge module is connected to the charging socket.
[0008] Furthermore, the diameters of the optical fiber include Φ0.25mm, Φ1mm, Φ2mm, and Φ3mm.
[0009] Furthermore, the length of the light guide fiber includes 5 mm, 10 mm, 20 mm, and 30 mm.
[0010] Furthermore, the light-guiding fiber is transparent and colorless, conducts light throughout the fiber, and the material of the fiber core is polymethyl methacrylate.
[0011] Furthermore, the material of the conversion sleeve is aluminum alloy, the sleeve is screwed to the shell through threads, and one end of the light guide fiber is a conical structure.
[0012] Furthermore, the LED lamp is a white light source with a color temperature of 5000K.
[0013] Furthermore, the light control button controls the light through the light control module, turns the light on or off, and adjusts the light brightness.
[0014] Furthermore, the battery has charging and discharging functions, and the charging and discharging module is connected to the charging socket for charging.
[0015] The advantages of the utility model compared with the prior art are:
[0016] (1) Aiming at the problem of detecting excess objects in tiny deep holes and narrow gaps, the utility model adopts a method combining a white LED daylight light source with a light-guiding fiber to inject a light beam into the fiber core, and emits soft light in the deep hole through reflection and refraction, thereby achieving soft output of a surface light source, eliminating reflections in the deep hole, and reducing the contrast between light and dark inside and outside. By replacing light-guiding fibers of different diameters and lengths, the difficulty of inspecting excess objects in deep holes of different depths and apertures and narrow gaps is solved, thereby reducing potential quality risks of products and improving detection efficiency.
[0017] (2) The utility model provides a deep hole excess material inspection device, whose optical fiber material is non-conductive, transparent throughout, has low conduction attenuation, has an anti-static coating on the surface, is not easy to generate static electricity during use, and the material is soft and will not damage the surface of the product. It can transmit the light beam to the tail end and emit light throughout the body. The optical fiber is soft and not dazzling, and the material is soft and bendable. It can be bent without breaking and will not generate excess materials again.
[0018] (3) The utility model can be powered by batteries or by an external circuit. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A diagram of the internal circuit structure of the inspection device provided for the utility model;
[0020] Figure 2 This is the appearance of the inspection device provided for the utility model. DETAILED DESCRIPTION
[0021] The following is further described with reference to the accompanying drawings:
[0022] like Figure 1 , 2 As shown, a deep hole excess material inspection device includes a light guide fiber 1, a conversion sleeve 2, an LED lamp 3, a light control button 4, a light control module 5, a battery 6, a charge and discharge module 7, a charging socket 8 and a housing 9;
[0023] The light guide fiber 1 is installed at one end of the conversion sleeve 2, and the shell 9 is installed at the other end of the conversion sleeve 2. The LED lamp 3, the light control module 5, the battery 6, the charge and discharge module 7, and the charging socket 8 are installed in the conversion sleeve 2 and the shell 9. The light control button 4 is set in the window on the shell 9; the LED lamp 3 is connected to the light control button 4, the light control button 4 is connected to the light control module 5, the light control module 5 is connected to the battery 6, and the battery supplies power to the LED lamp 3; the battery 6 is connected to the charge and discharge module 7, and the charge and discharge module 7 is connected to the charging socket 8.
[0024] The diameter of the optical fiber 1 has four specifications, namely Φ0.25mm, Φ1mm, Φ2mm, and Φ3mm, which can be selected according to the diameter of the deep hole to be measured. The length of the optical fiber 1 has four specifications, namely 5mm, 10mm, 20mm, and 30mm, which can be selected according to the depth of the deep hole to be measured.
[0025] The light-guiding fiber 1 is transparent and colorless, and can conduct light throughout the body. The fiber core is made of polymethyl methacrylate, which is soft and will not damage the surface quality of the hole when in contact with the hole. The light-guiding fiber 1 is connected to the housing 9 through a conversion sleeve 2, which is made of aluminum alloy. The sleeve 2 is screwed to the housing 9 through threads. One side of the light-guiding fiber 1 is a conical structure, and the bottom diameter of the cone is larger than the diameter of the housing 9 to ensure that it is installed in place and does not fall off.
[0026] The LED lamp 3 is a white light source with a color temperature of about 5000K and clear color rendering.
[0027] The light control button 4 controls the light through the light control module 5. A short press turns the light on or off, and a long press adjusts the light brightness. After a long press until the brightness is appropriate, releasing the button can fix the brightness.
[0028] The battery 6 has charging and discharging functions, and the battery 6 is connected to the charging and discharging module 7. The battery 6 realizes the charging and discharging functions through the charging and discharging module 7, and the charging and discharging module 7 is charged by an external charging socket 8. When in use, the battery can be powered, and the external circuit can also be powered.
[0029] Usage process:
[0030] (1) According to the diameter and depth of the deep hole, the length and diameter of the optical fiber 1 are selected to match the length and diameter of the optical fiber 1 , and the optical fiber 1 is assembled into the conversion sleeve 2 .
[0031] (2) Tighten the conversion sleeve 2 to the housing 9 via threads.
[0032] (3) Insert the assembled front end optical fiber 1 of the deep hole excess material detection device into the deep hole.
[0033] (4) Turn on the light through the light control button 4, and adjust the light intensity according to the observation state. Adjust the insertion angle and depth of the light guide fiber 1 to achieve the best observation effect. When in use, the light guide fiber 1 contacts the inner wall of the deep hole and does not damage the inner wall. After the observation is completed, turn off the light through the light control button 4.
[0034] The utility model provides a deep hole excess material inspection device, with a shell diameter of Φ1.2cm, and light guide fiber diameters of four specifications, namely Φ0.25mm, Φ1mm, Φ2mm, and Φ3mm. The device length is 12cm-22cm, and the weight is about 15 grams. It has a small size and light weight, and can realize the inspection of excess materials in holes of different diameters and depths.
[0035] The utility model provides a deep hole excess material inspection device, wherein the LED white light source has a color temperature of about 5000K, which is close to natural sunlight and has clear color rendering.
[0036] The contents not described in detail in the utility model specification belong to the common knowledge of those skilled in the art.
Claims
1. A deep hole excess material inspection device, characterized in that: It comprises a light-guiding fiber (1), a conversion sleeve (2), an LED lamp (3), a light control button (4), a light control module (5), a battery (6), a charging and discharging module (7), a charging socket (8) and a housing (9); The optical fiber (1) is installed at one end of the conversion sleeve (2), and the housing (9) is installed at the other end of the conversion sleeve (2). The LED lamp (3), the light control module (5), the battery (6), the charge and discharge module (7), and the charging socket (8) are installed in the conversion sleeve (2) and the housing (9), and the light control button (4) is arranged in a window on the housing (9); the LED lamp (3) is connected to the light control button (4) for controlling the switch of the LED lamp and the brightness adjustment, the light control button (4) is connected to the light control module (5), and the light control module (5) is connected to the battery (6) for powering the LED lamp (3); the battery (6) is connected to the charge and discharge module (7) for controlling the charge and discharge of the battery, and the charge and discharge module (7) is connected to the charging socket (8).
2. A deep hole excess material inspection device according to claim 1, characterized in that: The diameter of the optical fiber (1) includes Φ0.25mm, Φ1mm, Φ2mm, and Φ3mm.
3. A deep hole excess material inspection device according to claim 2, characterized in that: The lengths of the optical fiber (1) include 5 mm, 10 mm, 20 mm and 30 mm.
4. The deep hole excess material inspection device according to claim 1, characterized in that: The light-guiding fiber (1) is transparent and colorless, conducts light throughout the fiber, and the material of the fiber core is polymethyl methacrylate.
5. The deep hole excess material inspection device according to claim 1, characterized in that: The material of the conversion sleeve (2) is aluminum alloy, the sleeve (2) is screwed to the outer shell (9) via a thread, and one end of the light guide fiber (1) is a conical structure.
6. The deep hole excess material inspection device according to claim 1, characterized in that: The LED lamp (3) is a white light source with a color temperature of 5000K.
7. The deep hole excess material inspection device according to claim 1, characterized in that: The light control button (4) controls the light through the light control module (5), thereby realizing the switching of the light and the adjustment of the light brightness.
8. The deep hole excess material inspection device according to claim 1, characterized in that: The battery (6) has charging and discharging functions, and the charging and discharging module (7) is connected to the charging socket (8) for charging.