WO2020252788A1 - Air tightness detection device, air tightness detection system and air tightness detection method - Google Patents

Air tightness detection device, air tightness detection system and air tightness detection method Download PDF

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Publication number
WO2020252788A1
WO2020252788A1 PCT/CN2019/092404 CN2019092404W WO2020252788A1 WO 2020252788 A1 WO2020252788 A1 WO 2020252788A1 CN 2019092404 W CN2019092404 W CN 2019092404W WO 2020252788 A1 WO2020252788 A1 WO 2020252788A1
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air
detection
cavity
tightness
box
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PCT/CN2019/092404
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French (fr)
Chinese (zh)
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张顺
钟志勇
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深圳市大疆创新科技有限公司
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Priority to PCT/CN2019/092404 priority Critical patent/WO2020252788A1/en
Publication of WO2020252788A1 publication Critical patent/WO2020252788A1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/12Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water

Abstract

Disclosed are an air tightness detection device, an air tightness detection system and an air tightness detection method. The air tightness detection device comprises a control box (10), a detection box (20) and a driving assembly (30), which are arranged on the control box (10), and an image collection device (40) arranged in coordination with the detection box (20), wherein the detection box (20) can form a closed cavity under the action of the driving assembly (30), the cavity is used for accommodating at least one product to be tested, and an air inlet/outlet assembly (11) in communication with the cavity is provided in the control box (10); and the image collection device (40) is used for collecting an image in the cavity in real time and performing image analysis during air tightness detection to output an image analysis result so as to determine the air tightness of the product to be tested. By means of performing image collection on a product to be tested in a closed environment and analyzing the image, whether the product to be tested to meets air tightness requirements is detected. The testing efficiency is improved, the product to be tested is not damaged, requirements for testing products in batches are met, and the present invention is compatible with the testing of products of different specifications.

Description

一种气密性检测设备、检测系统及检测方法Air tightness detection equipment, detection system and detection method 【技术领域】【Technical Field】
本发明实施例属于测试技术领域,尤其涉及一种气密性检测设备、检测系统及气密性检测方法。The embodiment of the present invention belongs to the field of testing technology, and in particular relates to an air tightness detection device, a detection system and an air tightness detection method.
【背景技术】【Background technique】
随着电子产品比如手持拍照类设备的技术水平不断提高,对电子产品的气密性、防水性、寿命使用等要求越来越高,因而电子产品整机为密封体的气密性测试越来越重要。With the continuous improvement of the technical level of electronic products such as handheld camera equipment, the requirements for air tightness, waterproofness, and service life of electronic products are getting higher and higher. Therefore, the air tightness test of the whole electronic product as a sealed body is increasing. The more important.
现有的电子产品的气密性测试一般采用泡水测试的方式,这种测试方式要求测试设备的体积较大,设备成本相对较高,这种测试方式测试效率低,且在泡水测试过程中容易对电子产品造成损伤,亦不能满足批量产品测试需求,同时无法兼容不同规格产品的测试。The airtightness test of existing electronic products generally adopts the method of soaking in water. This method of testing requires a large volume of the test equipment and relatively high equipment cost. This test method has low test efficiency and is in the process of soaking. It is easy to cause damage to electronic products, and cannot meet the needs of mass product testing, and cannot be compatible with the testing of products of different specifications.
【发明内容】[Content of the invention]
于上述背景,本发明实施例提供一种气密性检测设备,以解决现有技术中所采用的测试方式的测试设备的体积大、测试效率低,且容易对被测产品造成损伤,不能满足批量产品测试需求和无法兼容不同规格产品的测试的问题;此外,本发明实施例还提供一种气密性检测系统及气密性检测方法。Against the above background, the embodiment of the present invention provides an air tightness testing device to solve the problem that the testing method used in the prior art has a large volume, low testing efficiency, and easily damages the product under test, which cannot satisfy The testing requirements of batch products and the problems of incompatibility with the testing of products of different specifications; in addition, the embodiment of the present invention also provides an air tightness detection system and an air tightness detection method.
本申请采用的技术方案具体如下。The technical solutions adopted in this application are as follows.
一种气密性检测设备,包括:An air tightness testing equipment, including:
控制箱,设置于所述控制箱上的检测箱和驱动组件,与所述检测箱配合设置的图像采集装置;A control box, a detection box and a drive assembly arranged on the control box, and an image acquisition device arranged in cooperation with the detection box;
其中,所述检测箱在所述驱动组件的作用下能够形成一密闭的腔体,所述腔体用于容纳至少一个被测产品,所述控制箱内设置有与所述腔体连通的进出气组件;Wherein, the detection box can form a closed cavity under the action of the drive assembly, the cavity is used to contain at least one product to be tested, and the control box is provided with an inlet and outlet communicating with the cavity. Gas component
所述图像采集装置在进行气密性检测时用于实时采集所述腔体内的图像并进行图像分析,以输出图像分析结果来确定被测产品的气密性。The image acquisition device is used to collect images in the cavity in real time and perform image analysis when performing air tightness testing, so as to output image analysis results to determine the air tightness of the tested product.
一种气密性检测系统,包括覆膜装置和如上所述的气密性检测设备,所述覆膜装置用于在检测前对被测产品表面形成检测膜,当被测产品气密性不合格时,所述检测膜在检测过程中将发生形变。An air-tightness detection system includes a film-coating device and the above-mentioned air-tightness detection equipment. The film-coating device is used to form a detection film on the surface of the tested product before the detection. When qualified, the detection film will be deformed during the detection process.
一种气密性检测方法,应用于上述的气密性检测系统,所述方法包括:An air tightness detection method, applied to the above air tightness detection system, the method comprising:
对被测产品进行覆膜操作,在被测产品表面形成一层检测膜;Laminating the tested product to form a layer of testing film on the surface of the tested product;
将被测产品放置于所述腔体内,使所述腔体形成密闭环境,并根据预设时间对所述腔体进行充气或者抽气;Placing the tested product in the cavity to form a sealed environment in the cavity, and inflating or pumping the cavity according to a preset time;
充气或者抽气结束后根据预设的保压时间对所述腔体进行保压,并实时采集被测产品的图像;After the completion of inflation or pumping, the cavity is pressure-maintained according to the preset pressure-holding time, and images of the tested product are collected in real time;
对采集的图像进行分析,当所述检测膜在所述保压时间内发生持续形变时,判定被测产品气密性不合格,并根据所述检测膜的形变位置确定被测产品的漏气点,否者判定为合格。Analyze the collected images. When the detection film undergoes continuous deformation during the dwell time, it is determined that the air tightness of the tested product is unqualified, and the leakage of the tested product is determined according to the deformation position of the detection film Point, otherwise it is judged as qualified.
本申请实施例提供的气密性检测设备、检测系统及气密性检测方法,通过对密闭环境中处于气密性测试中的被测产品进行图像采集,通过分析图像来确定被测产品是否满足气密性要求,这种测试设备体积小,测试效率提高,且不会对被测产品造成损伤,能够满足批量产品测试需求,同时可兼容不同规格的产品的测试。The air-tightness detection equipment, detection system, and air-tightness detection method provided by the embodiments of the present application collect images of the tested product in an air-tightness test in a closed environment, and analyze the images to determine whether the tested product meets the requirements Air-tightness requirements, this kind of test equipment is small in size, test efficiency is improved, and will not cause damage to the tested product, can meet the needs of batch product testing, and can be compatible with the testing of products of different specifications.
【附图说明】【Explanation of drawings】
为了更清楚地说明本发明的方案,下面将对实施例描述中所需要使用的附图作一个简单介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to explain the scheme of the present invention more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. As far as personnel are concerned, they can obtain other drawings based on these drawings without creative work.
图1为本发明实施例提供的气密性检测设备的整体结构示意图;FIG. 1 is a schematic diagram of the overall structure of an air tightness detection device provided by an embodiment of the present invention;
图2为本发明实施例提供的气密性检测设备的爆炸图;Figure 2 is an exploded view of the air tightness detection equipment provided by an embodiment of the present invention;
图3为本发明实施例提供的驱动组件与检测箱连接的示意图;3 is a schematic diagram of the connection between the driving assembly and the detection box provided by the embodiment of the present invention;
图4为本发明实施例提供的控制箱的示意图;Figure 4 is a schematic diagram of a control box provided by an embodiment of the present invention;
图5为本发明实施例提供的气密性检测方法的流程框图。FIG. 5 is a flowchart of a method for detecting air tightness according to an embodiment of the present invention.
附图标记说明:Description of reference signs:
控制箱control box 1010
顶板roof 101101
底板Bottom plate 102102
侧板Side panel 103a、103b、103c、103d103a, 103b, 103c, 103d
进出气组件Inlet and outlet components 1111
控制板Control panel 1212
启动按钮start up button 121a、121b121a, 121b
复位按钮reset button 122122
急停按钮emergency button 123123
显示装置Display device 1313
显示屏Display screen 131131
屏幕盖板Screen cover 132132
扬声装置Loudspeaker 1414
锁扣件Lock fastener 15a、15b15a, 15b
提拉件Lifting pieces 16a、16b16a, 16b
检测箱Detection box 2020
座体Seat body 21twenty one
盖体Cover 22twenty two
密封件Seals 23twenty three
驱动组件Drive components 3030
转接板Adapter board 301301
导轨guide 302302
滑块Slider 303303
支撑件supporting item 3131
驱动件Drive 3232
驱动杆Drive rod 321321
缓冲件Buffer 3333
图像采集装置Image acquisition device 4040
摄像头camera 4141
罩组件Cover assembly 5050
防护件Protective parts 6060
【具体实施方式】【Detailed ways】
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述。除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。本发明的说明书和权利要求书及上述附图中的术语“包括”和“包含”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其他步骤或单元。In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The terms "including" and "including" in the specification and claims of the present invention and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.
在本文中提及“实施例”意味着,结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例,也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是,本文所描述的实施例可以与其它实施例相结合。Reference to "embodiments" herein means that a specific feature, structure or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art clearly and implicitly understand that the embodiments described herein can be combined with other embodiments.
本发明实施例提供一种气密性检测设备,包括:The embodiment of the present invention provides an air tightness detection device, including:
控制箱,设置于所述控制箱上的检测箱和驱动组件,与所述检测箱配合设置的图像采集装置;A control box, a detection box and a drive assembly arranged on the control box, and an image acquisition device arranged in cooperation with the detection box;
其中,所述检测箱在所述驱动组件的作用下能够形成一密闭的腔体,所述腔体用于容纳至少一个被测产品,所述控制箱内设置有与所述腔体连通的进出 气组件;Wherein, the detection box can form a closed cavity under the action of the drive assembly, the cavity is used to accommodate at least one product to be tested, and the control box is provided with an inlet and outlet communicating with the cavity. Gas component
所述图像采集装置在进行气密性检测时用于实时采集所述腔体内的图像并进行图像分析,以输出图像分析结果来确定被测产品的气密性。The image acquisition device is used to collect images in the cavity in real time and perform image analysis when performing air tightness testing, so as to output image analysis results to determine the air tightness of the tested product.
基于上述气密性检测设备,本发明实施例还提供一种气密性检测系统,包括覆膜装置和所述气密性检测设备,所述覆膜装置用于在检测前对被测产品表面形成检测膜,当被测产品气密性不合格时,所述检测膜在检测过程中将发生形变。Based on the above-mentioned air-tightness detection equipment, an embodiment of the present invention also provides an air-tightness detection system, which includes a film coating device and the air-tightness detection equipment, and the film coating device is used for testing the surface of the product to be tested before testing. A detection film is formed. When the air tightness of the tested product is unqualified, the detection film will be deformed during the detection process.
基于上述气密性检测系统,本发明实施例还提供一种气密性检测方法,所述方法包括:Based on the above air tightness detection system, an embodiment of the present invention also provides an air tightness detection method, the method includes:
对被测产品进行覆膜操作,在被测产品表面形成一层检测膜;Laminating the tested product to form a layer of testing film on the surface of the tested product;
将被测产品放置于所述腔体内,使所述腔体形成密闭环境,并根据预设时间对所述腔体进行充气或者抽气;Placing the tested product in the cavity to form a sealed environment in the cavity, and inflating or pumping the cavity according to a preset time;
充气或者抽气结束后根据预设的保压时间对所述腔体进行保压,并实时采集被测产品的图像;After the completion of inflation or pumping, the cavity is pressure-maintained according to the preset pressure-holding time, and images of the tested product are collected in real time;
对采集的图像进行分析,当所述检测膜在所述保压时间内发生持续形变时,判定被测产品气密性不合格,并根据所述检测膜的形变位置确定被测产品的漏气点,否者判定为合格。Analyze the collected images. When the detection film undergoes continuous deformation during the dwell time, it is determined that the air tightness of the tested product is unqualified, and the leakage of the tested product is determined according to the deformation position of the detection film Point, otherwise it is judged as qualified.
本申请实施例提供的气密性检测设备、检测系统及气密性检测方法,通过对密闭环境中处于气密性测试中的被测产品进行图像采集,通过分析图像来确定被测产品是否满足气密性要求,这种测试设备体积小,测试效率提高,且不会对被测产品造成损伤,能够满足批量产品测试需求,同时可兼容不同规格产品的测试。The air-tightness detection equipment, detection system, and air-tightness detection method provided by the embodiments of the present application collect images of the tested product in an air-tightness test in a closed environment, and analyze the images to determine whether the tested product meets the requirements Airtightness requirements, this kind of test equipment is small in size, test efficiency is improved, and will not cause damage to the tested product, can meet the needs of batch product testing, and can be compatible with the testing of products of different specifications.
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述。In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention.
本发明实施例提供一种气密性检测设备,可用于对具有气密性或者防水性检测需求的电子产品进行气密性检测,尤其是对小体积的电子产品的气密性检测,当然,对于具有气密性需求的非电子产品或者大体积具有气密性需求的电 子产品也可采用本发明实施例提供的气密性检测设备进行检测。在本实施例中,被检测的电子产品可以是单个电子功能模块,比如摄像模块,也可是组装后的电子产品整机,比如拍摄设备、移动终端、平板电脑、智能穿戴设备等。The embodiment of the present invention provides an airtightness detection device, which can be used for airtightness detection of electronic products with airtightness or waterproofness detection requirements, especially for airtightness detection of small-volume electronic products. Of course, For non-electronic products with air-tightness requirements or large-volume electronic products with air-tightness requirements, the air-tightness detection equipment provided in the embodiments of the present invention can also be used for detection. In this embodiment, the electronic product to be detected may be a single electronic functional module, such as a camera module, or an assembled electronic product, such as photographing equipment, mobile terminals, tablet computers, smart wearable devices, and so on.
结合图1和图2所示,本发明实施例提供的气密性检测设备包括控制箱10,设置于所述控制箱10上的检测箱20和驱动组件30,与所述检测箱20配合设置的图像采集装置40;其中,所述检测箱20在所述驱动组件30的作用下能够形成一密闭的腔体,所述腔体用于容纳至少一个被测产品,所述控制箱10内设置有与所述腔体连通的进出气组件11;所述图像采集装置40在进行气密性检测时能够实时采集所述腔体内的图像并进行图像分析,以输出图像分析结果来确定被测产品的气密性。进一步地,在一些实施例中,如图1所示,所述检测箱20和所述驱动组件30的外侧还可设置有起保护作用的罩组件50,所述罩组件50可固定在所述控制箱10之上,也可以是与所述驱动组件30相连接。As shown in FIG. 1 and FIG. 2, the air-tightness detection equipment provided by the embodiment of the present invention includes a control box 10, a detection box 20 and a drive assembly 30 arranged on the control box 10, which are arranged in cooperation with the detection box 20 The image acquisition device 40; wherein the detection box 20 can form a closed cavity under the action of the drive assembly 30, the cavity is used to contain at least one product under test, the control box 10 is provided There is an air inlet and outlet assembly 11 connected to the cavity; the image acquisition device 40 can collect images in the cavity in real time and perform image analysis during air tightness testing, so as to output image analysis results to determine the product under test Air tightness. Further, in some embodiments, as shown in FIG. 1, the detection box 20 and the outer side of the drive assembly 30 may also be provided with a protective cover assembly 50, and the cover assembly 50 may be fixed on the The control box 10 can also be connected to the drive assembly 30.
本发明提供的气密性检测设备在进行检测时,需配合辅助检测物,在本发明实施例中,辅助检测物可为包覆在被测产品表面的检测膜,其中检测膜可以是流动性泡沫膜或者软性塑料膜,当通过进出气组件11对所述腔体进行充气时或者抽气时,可使被测产品内外部的气压形成压力差,压力大的一侧的空气有向压力小的一侧流动的趋势,若被测产品漏气,则在漏气位置的检测膜将因空气的流动发生形变或者明显发生形变,此时通过所述图像采集装置40采集的图像可以分析得出检测膜发生形变的位置,既能确定被测产品是否漏气,还能在被测产品漏气时确定被测产品的漏气位置;当然,如果被测产品不漏气或者漏气的程度满足预设范围,则所述图像采集装置40采集的图像中的检测膜将不会发生形变或者形变不明显。在本实施例中,放入检测箱20的腔体中的被测产品的数量可以是两个或以上,方便进行批量检测,提高检测效率。The air tightness detection equipment provided by the present invention needs to cooperate with auxiliary detection objects when performing detection. In the embodiment of the present invention, the auxiliary detection objects may be detection films coated on the surface of the tested product, and the detection film may be fluidity. Foam film or soft plastic film, when the cavity is inflated or pumped through the air inlet and outlet assembly 11, the air pressure inside and outside the tested product can form a pressure difference, and the air on the side with higher pressure has a pressure The tendency of flow on the small side. If the tested product leaks, the detection film at the leak position will be deformed or significantly deformed due to the flow of air. At this time, the image collected by the image acquisition device 40 can be analyzed. The location of the deformation of the detection film can not only determine whether the tested product is leaking, but also determine the location of the tested product when the tested product is leaking; of course, if the tested product does not leak or the degree of leakage If the preset range is satisfied, the detection film in the image collected by the image collection device 40 will not be deformed or the deformation will not be obvious. In this embodiment, the number of tested products put into the cavity of the detection box 20 may be two or more, which facilitates batch detection and improves detection efficiency.
在本发明的一些实施例中,所述图像采集装置40可设置于所述腔体中,具体是指所述图像采集装置40整体位于所述腔体中并固定在所述腔体的腔壁上,所述图像采集装置40的摄像头朝向位于所述腔体中的检测位,所述图像采集装置40以无线连接的方式与外部部件发生通信连接;又或者所述图像采集装置40 与外部部件有线连接,其穿过所述检测箱20的箱壁进入到所述腔体中,所述图像采集装置40的摄像头朝向位于所述腔体中的检测位,此时所述摄像头可以是直接镶嵌在所述检测箱20的箱壁上,也可以是连接所述摄像头的连接线穿过箱壁,使连接线末端的摄像头悬放于所述腔体中,图2所示的图像采集装置40的摄像头41即为镶嵌于箱壁上的情形;又或者所述图像采集装置40设置于所述检测箱20之外,此时所述检测箱20采用透明材料,所述图像采集装置40位于所述检测箱20的一侧,且所述图像采集装置40的摄像头透过所述检测箱20的箱体朝向位于所述腔体中的检测位。In some embodiments of the present invention, the image acquisition device 40 may be disposed in the cavity, specifically it means that the image acquisition device 40 is entirely located in the cavity and fixed on the cavity wall of the cavity. Above, the camera of the image acquisition device 40 faces the detection position in the cavity, and the image acquisition device 40 communicates with external components in a wireless connection mode; or the image acquisition device 40 and the external components Wired connection, which penetrates the wall of the detection box 20 and enters the cavity. The camera of the image acquisition device 40 faces the detection position in the cavity. At this time, the camera can be directly embedded On the box wall of the detection box 20, the connecting wire connecting the camera may pass through the box wall, so that the camera at the end of the connecting wire is suspended in the cavity. The image acquisition device 40 shown in FIG. 2 The camera 41 is inlaid on the wall of the box; or the image acquisition device 40 is arranged outside the detection box 20, at this time the detection box 20 is made of transparent material, and the image acquisition device 40 is located at the One side of the detection box 20, and the camera of the image acquisition device 40 passes through the box body of the detection box 20 toward the detection position in the cavity.
在本发明实施例中,所述图像采集装置40包含的摄像头的数量可以是1至4个,需要说明的是,不论所述图像采集装置40是位于所述腔体内还是位于所述检测箱20之外,所述摄像头的数量具体以摄像头能够覆盖被测产品上的被检测部位为准,在一些实施例中摄像头的数量也可高于4个,在此不作限定。In the embodiment of the present invention, the number of cameras included in the image acquisition device 40 may be 1 to 4. It should be noted that whether the image acquisition device 40 is located in the cavity or in the detection box 20 In addition, the number of the cameras is specifically based on the cameras being able to cover the detected parts on the tested product. In some embodiments, the number of cameras may also be higher than 4, which is not limited here.
进一步参阅图3,并结合图2,在本发明实施例中,所述检测箱20包括座体21和盖体22,所述座体21固定在所述控制箱10上,具体的,所述座体21与所述控制箱10的上箱板固定连接;所述盖体22与所述驱动组件30固定连接,所述驱动组件30能够驱动所述盖体22运动,以使所述盖体22与所述座体21抵持或分离,其中抵持时用于形成密闭的腔体,分离时用于取放被测产品;所述进出气组件11与所述座体21的内腔连通,其中所述图像采集装置40整体或者所述图像采集装置40的摄像头可固定于所述座体21或者所述盖体22的内壁。Further referring to Fig. 3 and in combination with Fig. 2, in the embodiment of the present invention, the detection box 20 includes a base 21 and a cover 22, and the base 21 is fixed on the control box 10. Specifically, the The base body 21 is fixedly connected to the upper box plate of the control box 10; the cover body 22 is fixedly connected to the drive assembly 30, and the drive assembly 30 can drive the cover body 22 to move, so that the cover body 22 is resisted or separated from the seat body 21, wherein when resisting, it is used to form a closed cavity, and when separated, it is used to take and place the tested product; the air inlet and outlet assembly 11 communicates with the inner cavity of the seat body 21 , Wherein the entire image acquisition device 40 or the camera of the image acquisition device 40 can be fixed to the inner wall of the base 21 or the cover 22.
进一步地,所述盖体22与所述座体21之间可设置有密封件23,以增加所述腔体的密闭性,具体的,所述密封件23可为橡胶圈,进一步地,在所述盖体22和/或所述座体21上还可设置所述密封件23的容置槽,图2中所述座体21上设置有容置槽,所述密封件23位于所述座体21的容置槽中。Further, a sealing member 23 may be arranged between the cover body 22 and the seat body 21 to increase the airtightness of the cavity. Specifically, the sealing member 23 may be a rubber ring. The cover body 22 and/or the seat body 21 may also be provided with a receiving groove for the sealing member 23. In FIG. 2, the seat body 21 is provided with a receiving groove, and the sealing member 23 is located in the In the accommodating groove of the seat body 21.
进一步地,如图3所示,并结合图2,所述驱动组件30包括支撑件31和固定在所述支撑件31上的驱动件32,所述驱动件32与所述盖体22固定连接,所述驱动件32能够带动所述盖体22运动,使所述盖体22和所述座体21抵持或者分离。在本实施例中,所述驱动件32可以是驱动气缸或者驱动电机,所述支 撑件31可以是支撑板或者支撑架。具体的,所述驱动件32的驱动杆321可以直接与所述盖体22连接,也可以是通过转接板与所述盖体22连接,图3所示即为通过转接板301连接的情形,进一步地,在所述支撑件31上还可设置至少一条导轨302,所述盖体22或者所述转接板通过至少一个滑块303与所述导轨302滑动连接,通过所述导轨302可对所述盖体22的运动进行导向,限定所述盖体22的运动轨迹。Further, as shown in FIG. 3 and in conjunction with FIG. 2, the drive assembly 30 includes a support 31 and a drive 32 fixed on the support 31, and the drive 32 is fixedly connected to the cover 22 The driving member 32 can drive the cover body 22 to move, so that the cover body 22 and the seat body 21 can resist or separate. In this embodiment, the driving member 32 may be a driving cylinder or a driving motor, and the supporting member 31 may be a supporting plate or a supporting frame. Specifically, the driving rod 321 of the driving member 32 may be directly connected to the cover body 22, or may be connected to the cover body 22 through an adapter plate. As shown in FIG. 3, it is connected through an adapter plate 301. Furthermore, at least one guide rail 302 can be further provided on the support 31, and the cover 22 or the adapter plate is slidably connected to the guide rail 302 through at least one slider 303, and the guide rail 302 The movement of the cover 22 can be guided to limit the movement track of the cover 22.
在一些实施例中,所述支撑件31上还设置有至少一个缓冲件33,所述缓冲件33在所述驱动件32带动所述盖体22与所述座体21分离时对所述盖体22的运动进行缓冲,同时也对所述盖体22的运动范围进行限制。In some embodiments, the supporting member 31 is further provided with at least one buffer member 33, and the buffer member 33 protects the cover when the driving member 32 drives the cover body 22 to separate from the seat body 21. The movement of the body 22 is buffered, and at the same time the movement range of the cover body 22 is restricted.
在一些实施例中,所述控制箱10上还设置有用于上料防护的防护件60,所述防护件60可直接安装在所述控制箱10的上箱板上,也可以通过安装板安装在所述控制箱10的上箱板上,在本实施例中,所述防护件60可采用安全光栅,具体地,安全光栅包括发射端和接收端,分别设置在控制箱10相对的两端。In some embodiments, the control box 10 is also provided with a protective member 60 for feeding protection. The protective member 60 can be directly installed on the upper box plate of the control box 10, or can be installed through a mounting plate. On the upper box board of the control box 10, in this embodiment, the protective member 60 can be a safety grating. Specifically, the safety grating includes a transmitting end and a receiving end, which are respectively arranged at opposite ends of the control box 10 .
本发明实施例通过驱动件32来压紧所述座体21和盖体22制造密闭环境,同时又能方便地分离所述座体21和盖体22,便于被测产品的取放。In the embodiment of the present invention, the driver 32 is used to compress the seat body 21 and the cover body 22 to create a closed environment, and at the same time, the seat body 21 and the cover body 22 can be conveniently separated, facilitating the taking and placing of the tested product.
基于上述实施例,在本发明实施例中,所述气密性检测设备还可包括气压检测装置(图中未示出),所述气压检测装置在进行气密性检测时能够实时采集所述腔体内的气压,以输出气压检测结果,配合所述图像分析结果来确定所述被测产品的气密性。在一些实施例中,所述气压检测装置为独立于所述检测箱20的气密仪,所述气密仪通过所述进出气组件11对所述腔体进行充气或抽气,并在充气或抽气后实时检测所述腔体内的气压变化;气密仪的灵敏度高于气压表,能够实时监控气压大小,通过气密仪控制和监控所述腔体内的气压,能够实现被测产品的微小漏气的检测。Based on the above-mentioned embodiment, in the embodiment of the present invention, the air tightness detection device may further include an air pressure detection device (not shown in the figure), and the air pressure detection device can collect the air tightness detection in real time. The air pressure in the cavity is used to output the air pressure detection result and cooperate with the image analysis result to determine the air tightness of the tested product. In some embodiments, the air pressure detection device is an air-tightness instrument independent of the detection box 20, and the air-tightness instrument inflates or evacuates the cavity through the air inlet and outlet assembly 11, and inflates Or detect the pressure change in the cavity in real time after pumping; the sensitivity of the air-tight instrument is higher than that of the barometer, which can monitor the air pressure in real time. The air-tight instrument can control and monitor the air pressure in the cavity to achieve the Detection of small air leaks.
具体的,当被测产品放入检测箱20后,通过气密仪对检测箱20内部不断对加压或者减压,加压或减压的过程一般控制的特定的时长内,比如1至5秒钟,将检测箱20内部的气压加压或者减压至一个额定值,然后保压预设的时长,比如10分钟,该保压预设的时长与被测产品的类型以及加压或者减压的额定值 存在关联,在实际方案中可根据实际情况来设定,以能够满足测试要求同时不对被测产品造成损害为准;在保压时被测产品内外部将存在压力差,压力大的一侧的空气存在将向压力小的一侧渗透的趋势,如果保压一段时间后,如果所述气压检测装置检测到所述检测箱20内部的气压没有变化,则说明被测产品气密性良好,若所述气压检测装置检测到所述检测箱20内部的气压发生变化,则说明被测产品有漏气现象,其中,若气密仪初始对检测箱20加压,则检测箱20内部的气压会减小,若气密仪初始对检测箱20加压,则检测箱20内部的气压会增加;如此配合图像采集装置40能快速的筛选出不良产品,并确定不良产品的漏气位置,便于甄别被测产品的气密性,对被测产品没有损伤,提升了产品线良率和生产效率。在实际情况中,不同的被测产品漏气的程度不同,因此对于被测产品是否满足气密性要求,可设定气压变化阈值,只有气压变化超出阈值时才判断被测产品不满足气密性要求,该气压变化阈值可通过对合格产品的测试来获得。Specifically, after the product to be tested is put into the detection box 20, the inside of the detection box 20 is continuously pressurized or decompressed by the air-tight instrument. The process of pressurization or decompression is generally controlled within a specific time period, such as 1 to 5. Second, pressurize or depress the air pressure inside the detection box 20 to a rated value, and then hold the pressure for a preset time, such as 10 minutes. The preset time for the pressure hold is related to the type of product being tested and the pressurization or reduction The rated value of the pressure is related, and can be set according to the actual situation in the actual plan, so as to meet the test requirements and not cause damage to the tested product; when the pressure is maintained, there will be a pressure difference between the inside and the outside of the tested product, and the pressure is high There is a tendency for the air on the side to penetrate to the side with a lower pressure. If the pressure is maintained for a period of time, if the air pressure detection device detects that the air pressure inside the detection box 20 does not change, it means that the product under test is airtight If the air pressure detection device detects a change in the air pressure inside the detection box 20, it indicates that the product under test is leaking. Among them, if the airtight instrument initially pressurizes the detection box 20, the detection box 20 The internal air pressure will decrease. If the air-tight instrument initially pressurizes the detection box 20, the air pressure inside the detection box 20 will increase; in this way, with the image acquisition device 40, the defective products can be quickly screened out and the air leakage of the defective products can be determined The location facilitates the identification of the airtightness of the tested product, does not damage the tested product, and improves the product line yield and production efficiency. In actual situations, different tested products have different degrees of air leakage. Therefore, whether the tested product meets the air-tightness requirements, the air pressure change threshold can be set, and only when the air pressure change exceeds the threshold can it be judged that the tested product does not meet the air tightness The air pressure change threshold can be obtained by testing qualified products.
进一步地,在本发明实施例中,所述图像采集装置40与设置于所述控制箱10内的控制组件电性连接,需要说明的是,本实施例为方便表示各部件,在图1至4中实现电性连接的连接线路和部分连接接口省略未示出;所述控制组件包括控制板12和与所述控制板12连接的按钮组,所述按钮组部分地穿过所述控制箱10的箱体设置,所述控制板12可分别连接所述按钮组、所述驱动件32和所述图像采集装置40,在一些实施例中还可连接所述进出气组件11,以控制所述进出气组件11的开启或关闭,在具体的实施例中,如图4所示,所述按钮组包括但不限于启动按钮(121a、121b)、复位按钮122、急停按钮123等,此处设两个启动按钮可以控制不同的部件启动,比如控制驱动件32启动和图像采集装置40启动,当然也可控制其他部件启动,在此不作限定。在一些实施例中,如图4所示,所述控制箱10的箱体上还设置有与所述控制板12连接的显示装置13和/或扬声装置14,其中显示装置13可用于显示检测参数和检测结果等,如图2所示,在本实施例中所述显示装置13包括显示屏131和对所述显示屏131起保护作用的屏幕盖板132,所述图像采集装置40配合所述显示屏131时,也 可以在显示屏131中实时显示采集的图像,直接观测被测产品表面的结构变化来分析判断出被测产品是否漏气以及确认漏气位置;所述扬声装置14可用于提示被测产品是否漏气或者用于设备故障报警等。本发明实施例中,如图2所示,所述控制箱10的箱体包括顶板101、底板102和侧板(103a、103b、103c、103d),所述按钮组、所述显示装置13和所扬声装置14可位于同一个侧板上,也可以位于不同的侧板上;在一些实施例中,所述顶板101和所述侧板采用活动连接,可通过打开所述顶板101对所述控制箱10内部进行部件安装或者检修,常规情况下所述顶板101和所述侧板可通过锁扣件(15a、15b)进行锁紧;在另一些实施例中,所述侧板上还可设置提拉件(16a、16b),方便搬运所述检测箱20或者整体搬运所述气密性检测设备。Further, in the embodiment of the present invention, the image acquisition device 40 is electrically connected to the control assembly provided in the control box 10. It should be noted that this embodiment is for the convenience of showing various components. The connection lines and part of the connection interfaces for electrical connection in 4 are omitted and not shown; the control assembly includes a control board 12 and a button group connected to the control board 12, and the button group partially penetrates the control box 10, the control board 12 can be connected to the button group, the driving member 32 and the image acquisition device 40 respectively. In some embodiments, the air inlet and outlet assembly 11 can also be connected to control the Regarding the opening or closing of the air inlet and outlet assembly 11, in a specific embodiment, as shown in FIG. 4, the button group includes but is not limited to a start button (121a, 121b), a reset button 122, an emergency stop button 123, etc. Two activation buttons are provided to control the activation of different components, such as the activation of the driver 32 and the activation of the image acquisition device 40. Of course, other components can also be activated, which is not limited here. In some embodiments, as shown in FIG. 4, the box body of the control box 10 is also provided with a display device 13 and/or a speaker device 14 connected to the control board 12, wherein the display device 13 can be used for displaying The detection parameters and detection results, etc., as shown in FIG. 2, the display device 13 in this embodiment includes a display screen 131 and a screen cover 132 that protects the display screen 131, and the image acquisition device 40 cooperates When the display screen 131 is used, the collected images can also be displayed in the display screen 131 in real time, and the structural changes on the surface of the tested product can be directly observed to analyze and determine whether the tested product is leaking and confirm the location of the leak; the speaker device 14 can be used to prompt whether the tested product is leaking or for equipment failure alarms. In the embodiment of the present invention, as shown in Figure 2, the box body of the control box 10 includes a top plate 101, a bottom plate 102 and side plates (103a, 103b, 103c, 103d), the button group, the display device 13 and The speaker devices 14 can be located on the same side panel or on different side panels; in some embodiments, the top panel 101 and the side panel are movably connected. The inside of the control box 10 is installed or overhauled. Under normal circumstances, the top plate 101 and the side plate can be locked by locking members (15a, 15b); in other embodiments, the side plate is also Lifting parts (16a, 16b) can be provided to facilitate the transportation of the detection box 20 or the overall transportation of the air tightness detection equipment.
本发明实施例提供的气密性检测设备,方便被测产品的取放,在测试过程中,通过对密闭环境进行充气或抽气,并对充气或抽气后处于气密性测试中的覆膜的被测产品进行图像采集,通过分析图像来确定被测产品是否满足气密性要求,这种测试设备体积小,操作方便,测试效率提高,且不会对被测产品造成损伤,不良产品能够回收返工,能够满足批量产品测试需求,同时可兼容不同规格产品的测试,此外,图像采集装置40结合气压检测装置能够更加快捷地确定被测产品的气密性,提高检测效率。The air-tightness testing equipment provided by the embodiments of the present invention facilitates the taking and placing of the tested product. During the test, the airtightness test is performed by inflating or pumping air in a closed environment, and covering the air-tightness test after inflation or pumping. The image of the tested product of the film is collected, and the image is analyzed to determine whether the tested product meets the air-tightness requirements. This kind of test equipment is small in size, convenient to operate, and the test efficiency is improved, and it will not cause damage to the tested product, and defective products It can be recycled and reworked, can meet the needs of batch product testing, and can be compatible with the testing of products of different specifications. In addition, the image acquisition device 40 combined with the air pressure detection device can more quickly determine the air tightness of the tested product and improve the detection efficiency.
本发明实施例还提供一种气密性检测系统,可用于产品的气密性检测,包括覆膜装置和如上述的气密性检测设备,所述覆膜装置用于在检测前对被测产品表面形成检测膜,当被测产品气密性不合格时,所述检测膜在检测过程中将发生形变。所述检测膜可以是流动性泡沫膜或者软性塑料膜,相应的,所述覆膜装置可以是泡沫膜覆膜装置或者塑料膜覆膜装置。The embodiment of the present invention also provides an air-tightness detection system, which can be used for the air-tightness detection of products, including a film-coating device and the above-mentioned air-tightness detection equipment. A detection film is formed on the surface of the product. When the air tightness of the tested product is unqualified, the detection film will be deformed during the detection process. The detection film may be a fluid foam film or a flexible plastic film, and accordingly, the film coating device may be a foam film coating device or a plastic film coating device.
进一步地,所述气密性检测系统还可包括上下料装置,所述上下料装置用于将覆膜后的所述被测产品上料至所述腔体内,以及将检测完成的所述被测产品从所述腔体中移出;在一些实施例中,所述上下料装置也可以用于覆膜操作的上下料,在此不作限定。Further, the air-tightness detection system may further include a loading and unloading device for loading the tested product with the film into the cavity, and loading the tested product into the cavity. The product to be tested is removed from the cavity; in some embodiments, the loading and unloading device may also be used for loading and unloading of film coating operations, which is not limited herein.
本发明实施例提供的气密性检测系统,通过对被测的被测产品进行覆膜操作,并对覆膜的被测产品所处的密闭环境进行充气或抽气操作,之后对被测产品进行图像采集,通过分析图像来确定被测产品是否满足气密性要求,这种测试设备体积小,测试效率提高,且不会对被测产品造成损伤,能够满足批量产品测试需求,同时可兼容不同规格产品的测试,此外,结合气压检测装置能够更加快捷地确定被测产品的气密性,提高检测效率。The air-tightness detection system provided by the embodiment of the present invention performs a laminating operation on the tested product to be tested, and inflating or exhausting the airtight environment in which the tested product is covered, and then the tested product Image acquisition is performed to determine whether the product under test meets the air tightness requirements by analyzing the image. This test equipment is small in size, improves test efficiency, and does not cause damage to the product under test. It can meet the needs of batch product testing and is compatible. The test of products of different specifications, in addition, combined with the air pressure detection device can more quickly determine the air tightness of the tested product, and improve the detection efficiency.
本发明实施例还提供一种气密性检测方法,应用于上述的气密性检测系统,如图5所示,所述方法包括:The embodiment of the present invention also provides an air tightness detection method, which is applied to the above-mentioned air tightness detection system. As shown in FIG. 5, the method includes:
S1、对被测产品进行覆膜操作,在被测产品表面形成检测膜;S1. Laminate the tested product to form a testing film on the surface of the tested product;
S2、将被测产品放置于所述腔体内,使所述腔体形成密闭环境,并根据预设时间对所述腔体进行充气或者抽气;S2. Place the tested product in the cavity to form a closed environment in the cavity, and inflate or evacuate the cavity according to a preset time;
S3、充气或者抽气结束后根据预设的保压时间对所述腔体进行保压,并实时采集被测产品的图像;S3. After the completion of inflation or pumping, the cavity is pressure-maintained according to the preset pressure-holding time, and images of the tested product are collected in real time;
S4、对采集的图像进行分析,当所述检测膜在所述保压时间内发生持续形变时,判定被测产品气密性不合格,并根据所述检测膜的形变位置确定被测产品的漏气点,否者判定为合格。S4. Analyze the collected images. When the detection film undergoes continuous deformation during the dwell time, it is determined that the air tightness of the tested product is unqualified, and the test product is determined according to the deformation position of the detection film. Leak point, otherwise it is judged as qualified.
结合图1至图4,在本发明实施例中,所述检测膜为流动性泡沫膜或者软性塑料膜,在采用流动性泡沫膜时,所述流动性泡沫膜的厚度可配置为3至7毫米。结合上述实施例中提及的气密性检测设备及气密性检测系统,当通过覆膜装置完成对被测产品的覆膜操作后,将覆膜后的被测产品放置于气密性检测设备的检测箱20内,并通过气密仪和进出气组件11对所述检测腔的腔体进行充气时或者抽气,使被测产品内外部的气压形成压力差,压力大的一侧的空气有向压力小的一侧流动的趋势,之后保压一段时间,若被测产品漏气,则在漏气位置的检测膜将因空气的流动发生形变或者明显发生形变,此时通过所述图像采集装置40采集的图像可以分析得出检测膜发生形变的位置,既能确定被测产品是否漏气,还能在被测产品漏气时确定被测产品的漏气位置,以检测膜采用 流动性泡沫膜为例,在充气或者抽气阶段,由于充气或抽气过程是平缓进行,泡沫膜具有一定的稳定性,不会因为充气或者抽气而导致泡沫膜的模型发生变化,在保压阶段,如果被测产品不漏气,泡沫膜会维持膜型不变化,如果被测产品表面存在漏气现象,由于被测产品内外的气压差导致的空气流动,会使漏气位置的泡沫膜上出现凹陷或者鼓起,这样即便是局部细微的漏气都会体现在泡沫膜的表面,从而精确地确定漏气位置。1 to 4, in the embodiment of the present invention, the detection film is a fluid foam film or a flexible plastic film. When a fluid foam film is used, the thickness of the fluid foam film can be configured to be 3 to 7 mm. Combining the air-tightness detection equipment and air-tightness detection system mentioned in the above embodiments, after the laminating operation of the tested product is completed by the laminating device, the tested product after the film is placed in the air-tightness inspection In the detection box 20 of the equipment, and when the cavity of the detection chamber is inflated or pumped through the air-tightness instrument and the air inlet and outlet assembly 11, the air pressure inside and outside the tested product forms a pressure difference, and the pressure on the side The air tends to flow to the side with the lower pressure, and then the pressure is maintained for a period of time. If the tested product leaks, the detection film at the leaking position will be deformed or significantly deformed due to the flow of air. The image collected by the image acquisition device 40 can be analyzed to determine the location of the detection film deformation, which can not only determine whether the tested product is leaking, but also determine the leak location of the tested product when the tested product leaks to detect the film adoption Take the fluid foam film as an example. In the inflation or pumping stage, the foam film has a certain degree of stability because the inflation or pumping process is smooth, and the model of the foam film will not change due to inflation or pumping. In the pressure phase, if the tested product does not leak, the foam film will maintain the film shape unchanged. If there is air leakage on the surface of the tested product, the air flow caused by the difference in air pressure inside and outside the tested product will cause foam at the leaking location. There are depressions or bulges on the membrane, so that even a small local leak will be reflected on the surface of the foam membrane, so as to accurately determine the location of the leak.
当然,如果被测产品不漏气或者漏气的程度满足预设范围,则所述图像采集装置40采集的图像中的检测膜将不会发生形变或者形变不明显。在本实施例中,放入检测箱20的腔体中的被测产品的数量可以是两个或以上,方便进行批量检测,提高检测效率。Of course, if the tested product does not leak or the degree of air leakage meets the preset range, the detection film in the image collected by the image collection device 40 will not be deformed or the deformation is not obvious. In this embodiment, the number of tested products put into the cavity of the detection box 20 may be two or more, which facilitates batch detection and improves detection efficiency.
在本实施例中,对所述检测箱20内部的加压或减压过程一般控制的特定的时长内,比如1至5秒钟,在特定的时长内将检测箱20内部的气压加压或者减压至一个额定值。此外,对所述检测箱20内部的加压或减压后的保压也可设置预设的保压时长,比如对所述腔体进行保压的保压时间为8至12分钟,该保压预设的时长与被测产品的类型以及加压或者减压的额定值存在关联,在具体方案中可根据实际情况来设定,以能够满足测试要求同时不对被测产品造成损害为准;在保压过程中,被测产品内外部将存在压力差,如果被测产品漏气,空气从压力大的一侧向压力小的一侧渗透,使得所述腔体的气压会发生变化,因此,在一些实施例中,在实时采集被测产品的图像时,所述方法还包括实时检测所述腔体内的气压;此时可根据所述腔体内的气压检测结果和图像分析结果综合对被测产品的气密性进行确定。具体的,当被测产品放入检测箱20后,并在充气或抽气保压一段时间后,如果检测箱20内部的气压没有变化,则说明被测产品气密性良好,此时单凭气压变化也可判断出产品气密性;若检测箱20内部的气压发生变化,则说明被测产品有漏气现象,其中,若气密仪初始对检测箱20加压,则检测箱20内部的气压会减小,若气密仪初始对检测箱20加压,则检测箱20内部的气压会增加,快速的筛选出不良产品,此时配合图像采集装置40还能快速确定不良产品漏气位置,甄别被测产品的气密性是否符合要求的 过程对被测产品没有损伤,提升了产品线良率和生产效率。此外,还可对不良产品的漏气位置进行统计,确定漏气发生概率比较大的位置,可后续对产品的改良提供依据,在实际情况中,不同的被测产品漏气的程度不同,因此对于被测产品是否满足气密性要求,可设定气压变化阈值,只有气压变化超出阈值时才判断被测产品不满足气密性要求,该气压变化阈值可通过对合格产品的测试来获得。In this embodiment, the pressurization or decompression process inside the detection box 20 is generally controlled within a specific time period, such as 1 to 5 seconds, and the air pressure inside the detection box 20 is pressurized or Reduce pressure to a rated value. In addition, the pressure holding time after pressurization or decompression inside the detection box 20 can also be set for a preset pressure holding time. For example, the pressure holding time of the cavity is 8 to 12 minutes. The preset duration of pressure is related to the type of product under test and the rated value of pressure or pressure. It can be set according to the actual situation in the specific plan to meet the test requirements without causing damage to the product under test; In the process of holding pressure, there will be a pressure difference between the inside and outside of the tested product. If the tested product leaks, air will infiltrate from the side with higher pressure to the side with lower pressure, so that the air pressure in the cavity will change. In some embodiments, when the image of the tested product is collected in real time, the method further includes real-time detection of the air pressure in the cavity; at this time, the air pressure detection result in the cavity and the image analysis result can be comprehensively checked. Determine the air tightness of the product. Specifically, after the product to be tested is put into the detection box 20, and after inflating or evacuating and maintaining pressure for a period of time, if the air pressure inside the detection box 20 does not change, it means that the tested product has good air tightness. The air pressure change can also determine the air tightness of the product; if the air pressure inside the detection box 20 changes, it means that the product under test is leaking. Among them, if the airtight instrument initially pressurizes the detection box 20, the inside of the detection box 20 The air pressure will decrease. If the airtight instrument initially pressurizes the detection box 20, the air pressure inside the detection box 20 will increase, and the defective products will be quickly screened out. At this time, with the image acquisition device 40, the air leakage of the defective products can be quickly determined Location, the process of checking whether the air tightness of the tested product meets the requirements does not damage the tested product, which improves the product line yield and production efficiency. In addition, it can also perform statistics on the air leakage location of bad products to determine the location with a relatively high probability of air leakage, which can provide a basis for subsequent product improvement. In actual situations, different tested products have different degrees of air leakage, so Regarding whether the tested product meets the air tightness requirements, the air pressure change threshold can be set. Only when the air pressure change exceeds the threshold can the tested product not meet the air tightness requirements. The air pressure change threshold can be obtained by testing qualified products.
本发明实施例提供的气密性检测方法,通过将覆膜后的被测产品放入密闭环境后,通过对密闭环境进行充气或抽气,并对充气或抽气后处于气密性测试中的被测产品进行图像采集,通过分析图像来确定被测产品是否满足气密性要求,这种测试方式的测试效率提高,且不会对被测产品造成损伤,能够满足批量产品测试需求,同时可兼容不同规格产品的测试。The airtightness detection method provided by the embodiment of the present invention puts the covered product into a closed environment, inflates or evacuates the closed environment, and is in an airtightness test after inflating or evacuating Image acquisition of the tested product, through analyzing the image to determine whether the tested product meets the airtightness requirements, the test efficiency of this test method is improved, and it will not cause damage to the tested product, which can meet the needs of batch product testing. Compatible with the testing of products of different specifications.
显然,以上所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,附图中给出了本发明的较佳实施例,但并不限制本发明的专利范围。本发明可以以许多不同的形式来实现,相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来而言,其依然可以对前述各具体实施方式所记载的技术方案进行修改,或者对其中部分技术特征进行等效替换。凡是利用本发明说明书及附图内容所做的等效结构,直接或间接运用在其他相关的技术领域,均同理在本发明专利保护范围之内。Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or equivalently replace some of the technical features. . Any equivalent structure made by using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is similarly within the protection scope of the present invention.

Claims (20)

  1. 一种气密性检测设备,其特征在于,包括:控制箱,设置于所述控制箱上的检测箱和驱动组件,与所述检测箱配合设置的图像采集装置;An air-tightness detection equipment, which is characterized by comprising: a control box, a detection box and a drive assembly arranged on the control box, and an image acquisition device arranged in cooperation with the detection box;
    其中,所述检测箱在所述驱动组件的作用下能够形成一密闭的腔体,所述腔体用于容纳至少一个被测产品,所述控制箱内设置有与所述腔体连通的进出气组件;Wherein, the detection box can form a closed cavity under the action of the drive assembly, the cavity is used to contain at least one product to be tested, and the control box is provided with an inlet and outlet communicating with the cavity. Gas component
    所述图像采集装置在进行气密性检测时用于实时采集所述腔体内的图像并进行图像分析,以输出图像分析结果来确定被测产品的气密性。The image acquisition device is used to collect images in the cavity in real time and perform image analysis when performing air tightness testing, so as to output image analysis results to determine the air tightness of the tested product.
  2. 根据权利要求1所述的气密性检测设备,其特征在于,所述图像采集装置设置于所述腔体中,所述图像采集装置的摄像头朝向位于所述腔体中的检测位。The airtightness detection equipment according to claim 1, wherein the image acquisition device is arranged in the cavity, and a camera of the image acquisition device faces a detection position located in the cavity.
  3. 根据权利要求2所述的气密性检测设备,其特征在于,所述检测箱包括座体和盖体,所述座体固定在所述控制箱上,所述盖体与所述驱动组件固定连接,所述驱动组件用于驱动所述盖体运动,以使所述盖体与所述座体抵持或分离;The air-tightness testing equipment according to claim 2, wherein the detection box includes a seat body and a cover body, the seat body is fixed on the control box, and the cover body is fixed to the drive assembly Connected, the drive assembly is used to drive the cover body to move, so that the cover body is resisted or separated from the base body;
    所述图像采集装置固定于所述座体或者所述盖体的内壁,所述进出气组件与所述座体的内腔连通。The image acquisition device is fixed to the inner wall of the seat body or the cover body, and the air inlet and outlet components communicate with the inner cavity of the seat body.
  4. 根据权利要求3所述的气密性检测设备,其特征在于,所述盖体与所述座体之间设置有密封件。The air tightness testing equipment according to claim 3, wherein a sealing element is provided between the cover body and the seat body.
  5. 根据权利要求3所述的气密性检测设备,其特征在于,所述驱动组件包括支撑件和固定在所述支撑件上的驱动件,所述驱动件与所述盖体固定连接。The air tightness testing equipment according to claim 3, wherein the drive assembly comprises a support and a drive fixed on the support, and the drive is fixedly connected with the cover.
  6. 根据权利要求5所述的气密性检测设备,其特征在于,所述支撑件上还设置有缓冲件,所述缓冲件用于在所述驱动件带动所述盖体与所述座体分离时对所述盖体的运动进行缓冲。The air-tightness testing equipment according to claim 5, wherein the supporting member is further provided with a buffer member, and the buffer member is used for driving the driving member to separate the cover body from the seat body At the same time, the movement of the cover body is buffered.
  7. 根据权利要求1所述的气密性检测设备,其特征在于,所述控制箱上还设置有用于上料防护的防护件。The air-tightness testing equipment according to claim 1, wherein the control box is further provided with a protective piece for feeding protection.
  8. 根据权利要求1所述的气密性检测设备,其特征在于,所述检测箱采用透明材料,所述图像采集装置位于所述检测箱的一侧,且所述图像采集装置的摄像头透过所述检测箱的箱体朝向位于所述腔体中的检测位。The airtightness testing equipment according to claim 1, wherein the detection box is made of transparent material, the image acquisition device is located on one side of the detection box, and the camera of the image acquisition device penetrates The box body of the detection box faces the detection position in the cavity.
  9. 根据权利要求2至6任一项所述的气密性检测设备,其特征在于,所述摄像头的数量为1至4个。The air tightness detection device according to any one of claims 2 to 6, wherein the number of the cameras is 1 to 4.
  10. 根据权利要求1至8任一项所述的气密性检测设备,其特征在于,所述气密性检测设备还包括气压检测装置,所述气压检测装置在进行气密性检测时用于实时采集所述腔体内的气压,以输出气压检测结果,配合所述图像分析结果确定所述被测产品的气密性。The air-tightness detection equipment according to any one of claims 1 to 8, wherein the air-tightness detection equipment further comprises an air pressure detection device, and the air pressure detection device is used for real-time air tightness detection. Collect the air pressure in the cavity to output the air pressure detection result, and cooperate with the image analysis result to determine the air tightness of the tested product.
  11. 根据权利要求10所述的气密性检测设备,其特征在于,所述气压检测装置为独立于所述检测箱的气密仪,所述气密仪通过所述进出气组件对所述腔体进行充气或抽气,并在充气或抽气后实时检测所述腔体内的气压变化。The air-tightness testing equipment according to claim 10, wherein the air-pressure detecting device is an air-tightness instrument independent of the detection box, and the air-tightness instrument faces the cavity through the air inlet and outlet components. Perform inflation or pumping, and detect the change of air pressure in the cavity in real time after inflation or pumping.
  12. 根据权利要求1至8任一项所述的气密性检测设备,其特征在于,所述图像采集装置与设置于所述控制箱内的控制组件电性连接;The air-tightness detection equipment according to any one of claims 1 to 8, wherein the image acquisition device is electrically connected to a control component arranged in the control box;
    所述控制组件包括控制板和与所述控制板连接的按钮组,所述按钮组部分地穿过所述控制箱的箱体设置。The control assembly includes a control board and a button group connected with the control board, and the button group is partially arranged through the box body of the control box.
  13. 根据权利要求12所述的气密性检测设备,其特征在于,所述控制箱的箱体上还设置有与所述控制板连接的显示装置和/或扬声装置。The air-tightness testing equipment according to claim 12, wherein a display device and/or a speaker device connected to the control board are further provided on the box body of the control box.
  14. 一种气密性检测系统,其特征在于,包括覆膜装置和如权利要求1至13所述的气密性检测设备,所述覆膜装置用于在检测前对被测产品表面形成检测膜,当被测产品气密性不合格时,所述检测膜在检测过程中将发生形变。An air tightness detection system, which is characterized by comprising a film covering device and the air tightness detection equipment according to claims 1 to 13, and the film covering device is used to form a detection film on the surface of the tested product before the detection When the air tightness of the tested product is unqualified, the detection film will deform during the detection process.
  15. 根据权利要求14所述的气密性检测系统,其特征在于,还包括上下料装置,所述上下料装置用于将覆膜后的所述被测产品上料至所述腔体内,以及将检测完成的所述被测产品从所述腔体中移出。The air tightness detection system according to claim 14, further comprising a loading and unloading device, the loading and unloading device is used for loading the tested product after the film coating into the cavity, and The tested product after the test is completed is removed from the cavity.
  16. 一种气密性检测方法,应用于权利要求14或15所述的气密性检测系统,其特征在于,所述方法包括:An air-tightness detection method applied to the air-tightness detection system according to claim 14 or 15, characterized in that the method comprises:
    对被测产品进行覆膜操作,在被测产品表面形成检测膜;Laminating the tested product to form a testing film on the surface of the tested product;
    将被测产品放置于所述腔体内,使所述腔体形成密闭环境,并根据预设时间对所述腔体进行充气或者抽气;Placing the tested product in the cavity to form a sealed environment in the cavity, and inflating or pumping the cavity according to a preset time;
    充气或者抽气结束后根据预设的保压时间对所述腔体进行保压,并实时采集被测产品的图像;After the completion of inflation or pumping, the cavity is pressure-maintained according to the preset pressure-holding time, and images of the tested product are collected in real time;
    对采集的图像进行分析,当所述检测膜在所述保压时间内发生持续形变时,判定被测产品气密性不合格,并根据所述检测膜的形变位置确定被测产品的漏气点,否者判定为合格。Analyze the collected images. When the detection film undergoes continuous deformation during the dwell time, it is determined that the air tightness of the tested product is unqualified, and the leakage of the tested product is determined according to the deformation position of the detection film Point, otherwise it is judged as qualified.
  17. 根据权利要求16所述的气密性检测方法,其特征在于,在实时采集被测产品的图像时,所述方法还包括:The airtightness detection method according to claim 16, characterized in that, when the image of the tested product is collected in real time, the method further comprises:
    实时检测所述腔体内的气压,根据所述腔体内的气压检测结果和图像分析结果对被测产品的气密性进行确定。The air pressure in the cavity is detected in real time, and the air tightness of the tested product is determined according to the air pressure detection result and the image analysis result in the cavity.
  18. 根据权利要求16或17所述的气密性检测方法,其特征在于,所述检测膜为流动性泡沫膜或者软性塑料膜。The air tightness detection method according to claim 16 or 17, wherein the detection film is a fluid foam film or a flexible plastic film.
  19. 根据权利要求16或17所述的气密性检测方法,其特征在于,所述流动性泡沫膜的厚度为3至7毫米。The air tightness detection method according to claim 16 or 17, wherein the thickness of the fluid foam film is 3 to 7 mm.
  20. 根据权利要求16或17所述的气密性检测方法,其特征在于,对所述腔体进行保压的保压时间为8至12分钟。The air tightness detection method according to claim 16 or 17, characterized in that the pressure holding time for the pressure holding of the cavity is 8 to 12 minutes.
PCT/CN2019/092404 2019-06-21 2019-06-21 Air tightness detection device, air tightness detection system and air tightness detection method WO2020252788A1 (en)

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