阅读说明：本技术 一种密封性产品气密性测试机构及测试方法 (Airtightness testing mechanism and method for sealing product ) 是由 齐照山 林东峰 何育林 陶良军 杨湖湖 陈明 于 2020-06-24 设计创作，主要内容包括：本发明提供了一种密封性产品气密性测试机构及测试方法,包括：测试架；至少一组定位检测组件,定位检测组件设置在测试架上,用于固定及检测待测产品；其中,定位检测组件包括：若干个定位气管,定位气管设置在测试架上,用于通过抽气使待测产品吸附在测试架上；测试探头,测试探头通过弹性连接片与测试架连接,测试探头上设置有充气孔,待测产品在定位气管的作用下吸附在测试架上并压缩测试探头,使测试探头的充气孔与待测产品的透气孔紧密连接,从而向待测产品内充气；压力传感器,用于检测待测产品内的压强。该机构能够同时检测密封性产品的气密性以及是否漏贴防水透气贴,检测速度更快,效率、精度更高。(The invention provides a mechanism and a method for testing the air tightness of a sealing product, which comprises the following steps: a test jig; the positioning detection assembly is arranged on the test frame and used for fixing and detecting a product to be detected; wherein, the location detection subassembly includes: the positioning air pipes are arranged on the test frame and used for adsorbing a product to be tested on the test frame through air suction; the test probe is connected with the test frame through the elastic connecting sheet, an inflation hole is formed in the test probe, a product to be tested is adsorbed on the test frame under the action of the positioning air pipe and compresses the test probe, so that the inflation hole of the test probe is tightly connected with the air hole of the product to be tested, and the product to be tested is inflated; and the pressure sensor is used for detecting the pressure intensity in the product to be detected. This mechanism can detect the gas tightness of leakproofness product simultaneously and whether leak and paste waterproof ventilative subsides, and detection speed is faster, and efficiency, precision are higher.)

1. A leakproofness product gas tightness accredited testing organization, its characterized in that includes:

a test jig;

the positioning detection assembly is arranged on the test frame and used for fixing and detecting a product to be detected;

wherein the positioning detection assembly comprises:

the positioning air pipes are arranged on the test frame and used for enabling the product to be tested to be adsorbed on the test frame through air suction;

the test probe is connected with the test frame through an elastic connecting sheet, an inflation hole is formed in the test probe, the product to be tested is adsorbed on the test frame under the action of the positioning air pipe and compresses the test probe, so that the inflation hole of the test probe is tightly connected with the inflation hole of the product to be tested, and the product to be tested is inflated;

and the pressure sensor is used for detecting the pressure intensity in the product to be detected.

2. The tightness testing mechanism of a sealing product according to claim 1, characterized in that: the side of test jig is provided with the first sensor of a plurality of, first sensor respectively with the location determine module corresponds, is used for detecting whether the product that awaits measuring is set level.

3. The tightness testing mechanism of a sealing product according to claim 1, characterized in that: be provided with the location mounting groove on the test jig, location determine module all sets up in the location mounting groove.

4. The tightness testing mechanism of a sealing product according to claim 3, wherein: the bottom surface of the positioning installation groove is provided with a plurality of air pipe positioning holes, and the positioning air pipes are respectively arranged in the corresponding air pipe positioning holes.

5. The tightness testing mechanism of a sealing product according to claim 1, characterized in that: still include the test cabinet, be provided with the open chamber that holds of one side in the test cabinet, the test jig is installed hold the intracavity.

6. The tightness testing mechanism of a sealing product according to claim 5, wherein: the test cabinet further comprises:

the control box is arranged in the test cabinet and used for controlling the operation of a system;

the display screen is arranged at the top of the test cabinet, is connected with the control box and is used for displaying test data;

the three-color lamp is arranged at the top end of the test cabinet, is connected with the control box and is used for displaying a test result;

two safety gratings are respectively arranged on two sides of the opening of the accommodating cavity and are connected with the control box.

7. The airtightness testing mechanism for hermetic products according to any one of claims 1 to 6, wherein: the test probe is also provided with a second sensor, and the second sensor is used for detecting whether to place the product to be tested.

8. The airtightness testing mechanism for hermetic products according to any one of claims 1 to 6, wherein: and a sealing ring is arranged on the inflation hole.

9. A test method for the airtightness test mechanism for the sealing product according to any one of claims 1 to 8, comprising the steps of:

adsorbing the product to be tested through the positioning air pipe, enabling the product to be tested to compress the test probe, and enabling the air inflation hole of the test probe to be tightly connected with the air vent of the product to be tested;

testing the initial pressure in the product to be tested through the pressure sensor, and obtaining the preset inflation time of the product to be tested when the preset pressure is reached through big data;

inflating the product to be tested through the inflation hole of the test probe to enable the product to be tested to reach the preset pressure intensity, and measuring the actual inflation time;

maintaining the pressure of the product to be detected for a preset pressure maintaining time;

measuring the real-time pressure in the product to be measured after the preset pressure maintaining time through the pressure sensor;

and obtaining a test result according to the actual inflation time and the difference value between the preset pressure and the real-time pressure.

10. The testing method according to claim 9, wherein the obtaining of the test result specifically comprises:

when the actual inflation time is longer than the preset inflation time, the product to be tested leaks;

when the actual inflation time is less than the preset inflation time, the product to be tested is not attached with the waterproof breathable paste;

when the actual inflation time is equal to the preset inflation time and the difference value between the preset pressure and the real-time pressure is not greater than a preset difference value, the product to be tested is not leaked;

and when the actual inflation time is equal to the preset inflation time and the difference value between the preset pressure and the real-time pressure is larger than a preset difference value, the product to be detected leaks.

Technical Field

The invention relates to the technical field of air tightness testing, in particular to a mechanism and a method for testing air tightness of a sealing product.

Background

Some sealing products, such as radars, are not completely sealed, but some air holes are required to be formed in the shell, waterproof breathable patches are attached to the air holes, and in addition, other places are required to be sealed. However, in the actual production process of the radar, the rest positions of the radar may be leaked, and the waterproof breathable paste is also easy to leak, so that the air tightness of the radar is not in line with the standard, and the performance of the radar is affected. Therefore, it is necessary to detect the airtightness of the radar and whether the waterproof and breathable tape is missed.

In the prior art, whether the radar is missed to be pasted with the waterproof breathable paste is usually manually detected, or the air tightness of the radar is manually detected through an air tightness detector, the detection efficiency is low, and the detection result precision is not high. Therefore, an air tightness testing mechanism which can simultaneously detect the air tightness of a sealing product and detect whether to leak and stick a waterproof breathable paste or not, and has higher detection speed and higher precision is needed.

Disclosure of Invention

The invention aims to provide a mechanism and a method for testing the air tightness of a sealing product, which can be used for simultaneously detecting the air tightness of the sealing product and whether a waterproof breathable paste is missed or not, and have the advantages of higher detection speed, higher efficiency and higher precision.

The technical scheme provided by the invention is as follows:

the invention provides a tightness test mechanism for a sealing product, which comprises:

a test jig;

the positioning detection assembly is arranged on the test frame and used for fixing and detecting a product to be detected;

wherein the positioning detection assembly comprises:

the positioning air pipes are arranged on the test frame and used for enabling the product to be tested to be adsorbed on the test frame through air suction;

the test probe is connected with the test frame through an elastic connecting sheet, an inflation hole is formed in the test probe, the product to be tested is adsorbed on the test frame under the action of the positioning air pipe and compresses the test probe, so that the inflation hole of the test probe is tightly connected with the inflation hole of the product to be tested, and the product to be tested is inflated;

and the pressure sensor is used for detecting the pressure intensity in the product to be detected.

The positioning air pipe is connected with the air suction device, so that a product to be tested can be firmly adsorbed on the test frame after being placed on the test frame, the test probe is also arranged on the test frame and is connected with the test frame through the elastic connecting piece, when the product to be tested is adsorbed on the test frame, the test probe can be compressed, an inflation hole of the test probe is tightly connected with an air hole of the product to be tested, the product to be tested is inflated through the inflation hole, the actual inflation time required by inflating gas with preset pressure intensity can be measured, whether the product to be tested leaks air or is pasted with a waterproof breathable paste can be judged according to the actual inflation time, the pressure in the product to be tested is kept for a period of time, the leakage amount is measured, the leakage amount is compared with the preset difference value, whether the product to be tested is qualified or leaked can be further determined, and the mechanism can simultaneously detect the air tightness of the product to be tested and whether the waterproof breathable paste is pasted, and a plurality of products to be detected are detected simultaneously, so that the detection speed is higher, and the efficiency and the precision are higher.

Further, the side of test jig is provided with the first sensor of a plurality of, first sensor respectively with the location determine module corresponds, is used for detecting whether the product that awaits measuring is set level.

Set up first sensor through the side at the test jig, first sensor is laser sensor, radar sensor etc. for whether the product that detects is set level, thereby guarantee the gas charging hole of test probe and the bleeder vent zonulae occludens of the product that awaits measuring, avoid influencing the precision of test.

Further, be provided with the location mounting groove on the test jig, location determine module all sets up in the location mounting groove.

Through setting up the location mounting groove, the big or small size of location mounting groove matches with the size of the product that awaits measuring, and location determine module all sets up in the location mounting groove, can make the product that awaits measuring fix a position fast when placing the product that awaits measuring, improves detection efficiency.

Furthermore, the bottom surface of the positioning installation groove is provided with a plurality of air pipe positioning holes, and the positioning air pipes are respectively arranged in the corresponding air pipe positioning holes.

Through setting up the trachea locating hole, can be fixed with the location trachea to be favorable to making the product that awaits measuring fixed when adsorbing the product that awaits measuring, when avoiding the test, the product that awaits measuring rocks, influences the measuring accuracy.

Further, still include the test cabinet, be provided with the open chamber that holds of one side in the test cabinet, the test jig is installed hold the intracavity.

Through setting up the test cabinet, the test jig is installed in the intracavity that holds of test cabinet, can make the test mechanism form an organic whole to the use of test mechanism is convenient for.

Further, the test cabinet further comprises:

the control box is arranged in the test cabinet and used for controlling the operation of a system;

the display screen is arranged at the top of the test cabinet, is connected with the control box and is used for displaying test data;

the three-color lamp is arranged at the top end of the test cabinet, is connected with the control box and is used for displaying a test result;

two safety gratings are respectively arranged on two sides of the opening of the accommodating cavity and are connected with the control box.

In this embodiment, the control box is a PLC control box for controlling the operation of the entire system; the display screen is used for displaying test data and displaying test results in forms, images and the like; the three-color lamp is used for visually displaying a test result, if a product to be tested is qualified, a green lamp is displayed, a yellow lamp is displayed in the test process, and if the product to be tested is unqualified, a red lamp is displayed; the safety grating is equivalent to a starting switch, when a product to be tested is placed on the test frame, a hand or a machine and the like are required to stretch into the accommodating cavity, the placing is to be completed, and when the safety grating detects that the hand or the machine completely exits from the accommodating cavity, the control box control system starts to operate and detect.

Further, a second sensor is further arranged on the detection probe and used for detecting whether the product to be detected is placed or not.

Through set up the second sensor on test probe, the second sensor is radar sensor etc. can detect and survey whether to place the product that awaits measuring on the probe, simultaneously, can also scan the two-dimensional code that the product that awaits measuring pasted this department to the record is traceed back.

Further, a sealing ring is arranged on the air charging hole.

Through set up the sealing washer on aerifing the hole, can guarantee the hole of aerifing of test probe and the bleeder vent zonulae occludens of the product that awaits measuring to when preventing to the product that awaits measuring to aerify, gas leakage influences the test result.

In addition, the invention also provides a test method for the airtightness test mechanism for the leakproofness product, which comprises the following steps:

adsorbing the product to be tested through the positioning air pipe, enabling the product to be tested to compress the test probe, and enabling the air inflation hole of the test probe to be tightly connected with the air vent of the product to be tested;

testing the initial pressure in the product to be tested through the pressure sensor, and obtaining the preset inflation time of the product to be tested when the preset pressure is reached through big data;

in the embodiment, the initial pressure of the product to be measured is 2Kpa, the preset pressure is 12Kpa, that is, the pressure of the charged gas is 10Kpa, and the preset charging time T of the product when the product is charged to 12Kpa is 5s is obtained according to the big data;

inflating the product to be tested through the inflation hole of the test probe to enable the product to be tested to reach the preset pressure intensity, and measuring the actual inflation time;

maintaining the pressure of the product to be detected for a preset pressure maintaining time, wherein the preset pressure maintaining time is 3s in the embodiment;

measuring the real-time pressure in the product to be measured after the preset pressure maintaining time through the pressure sensor;

and obtaining a test result according to the actual inflation time and the difference value between the preset pressure and the real-time pressure.

Further, the obtaining of the test result specifically includes:

when the actual inflation time is longer than the preset inflation time, the product to be tested leaks;

when the actual inflation time is less than the preset inflation time, the product to be tested is not attached with the waterproof breathable paste;

when the actual inflation time is equal to the preset inflation time and the difference value between the preset pressure and the real-time pressure is not greater than a preset difference value, the product to be tested is not leaked;

when the actual inflation time is equal to the preset inflation time and the difference between the preset pressure and the real-time pressure is greater than a preset difference, the product to be tested leaks, and in this embodiment, the preset difference is determined according to the product characteristics.

According to the tightness testing mechanism and the testing method of the sealing product provided by the invention, the positioning air pipe is arranged and connected with the air suction device, so that the product to be tested can be firmly adsorbed on the testing frame after being placed on the testing frame, the testing frame is also provided with the testing probe which is connected with the testing frame through the elastic connecting piece, when the product to be tested is adsorbed on the testing frame, the testing probe can be compressed, the air inflation hole of the testing probe is tightly connected with the air inflation hole of the product to be tested, the product to be tested is inflated through the air inflation hole, the actual inflation time required for inflating the gas with the preset pressure can be measured, whether the product to be tested leaks or is attached with the waterproof breathable adhesive can be judged according to the actual inflation time, the pressure in the product to be tested is kept for a period of time, the leakage amount is measured, and the leakage amount is compared with the preset difference value, whether the product to be detected is qualified or leaked can be further determined, so that the mechanism can simultaneously detect the air tightness of the product to be detected and whether the waterproof breathable paste is leaked or not, a plurality of products to be detected are simultaneously detected, the detection speed is higher, and the efficiency and the precision are higher.

Drawings

The foregoing features, technical features, advantages and embodiments of the present invention will be further explained in the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.

FIG. 1 is a schematic diagram of a test rack according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a mounting structure of a product to be tested according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a test rack according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a test probe according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the overall structure of the test cabinet according to the embodiment of the present invention;

FIG. 6 is a schematic diagram of a state flow architecture of an embodiment of the present invention;

FIG. 7 is a schematic diagram of a determination process according to an embodiment of the invention.

Reference numbers in the figures: 10-a test jig; 11-a first sensor; 12-positioning the mounting groove; 13-air pipe positioning hole; 20-positioning the detection assembly; 21-positioning the trachea; 22-test probe; 23-an elastic connecting piece; 24-an inflation hole; 25-a second sensor; 30-a product to be tested; 40-a test cabinet; 41-an accommodating cavity; 42-a control box; 43-a display screen; 44-three color lamps; 45-safety grating.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

Example 1

In an embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a mechanism for testing air tightness of a sealed product, including a testing frame 10 and at least one set of positioning and detecting components 20, where the positioning and detecting components 20 are disposed on the testing frame 10 and used for fixing and detecting a product 30 to be tested. The number of the positioning detection assemblies 20 is not fixed, and can be determined according to the use environment, in this embodiment, the product 30 to be detected is placed on the positioning detection assemblies 20 by hands, so that the number of the positioning detection assemblies 20 is two, and the left hand and the right hand can be operated simultaneously, in other embodiments, the positioning detection assemblies 20 can be further provided with multiple groups, for example, the product 30 to be detected is placed on the positioning detection assemblies 20 by a manipulator.

In this embodiment, the product 30 to be tested is a radar, and a specific air hole is provided with a waterproof air-permeable patch, but in the actual production process, other positions of the radar may be leaked, and the waterproof air-permeable patch may not be attached to the air hole, so that the air tightness of the radar needs to be tested to determine whether the radar is qualified, and in other embodiments, the product 30 to be tested may also be other products similar to radars.

The positioning detection assembly 20 includes a plurality of positioning air tubes 21, a test probe 22, and a pressure sensor. The positioning air pipe 21 is arranged on the test frame 10 and used for enabling the product 30 to be tested to be adsorbed on the test frame 10 through air suction.

The test probe 22 is connected with the test frame 10 through an elastic connecting sheet 23, an inflation hole 24 is arranged on the test probe 22, the product 30 to be tested is adsorbed on the test frame 10 under the action of the positioning air pipe 21 and compresses the test probe 22, so that the inflation hole 24 of the test probe 22 is tightly connected with the inflation hole of the product 30 to be tested, and the product 30 to be tested can be inflated, in the embodiment, the test probe 22 is connected with an inflation device, and an inflation pipeline can penetrate through the test frame 10.

Preferably, a sealing ring is arranged on the air charging hole 24. By arranging the sealing ring on the air charging hole 24, the air charging hole 24 of the test probe 22 can be ensured to be tightly connected with the air holes of the product 30 to be tested, so that the gas leakage is prevented from influencing the test result when the product 30 to be tested is charged.

The pressure sensor is used for detecting the pressure inside the product 30 to be measured, including the initial pressure, the pressure after inflation, the pressure after pressure maintaining, and the like, and in this embodiment, the pressure sensor is installed inside the product 30 to be measured or at the inflation hole 24.

By arranging the positioning air pipe 21, the positioning air pipe 21 is connected with the air suction device, so that the product 30 to be tested can be firmly adsorbed on the test frame 10 after the product 30 to be tested is placed on the test frame 10, the test probe 22 is also arranged on the test frame 10, the test probe 22 is connected with the test frame 10 through the elastic connecting sheet 23, when the product 30 to be tested is adsorbed on the test frame 10, the test probe 22 can be compressed, the air inflation hole 24 of the test probe 22 is tightly connected with the air inflation hole of the product 30 to be tested, the product 30 to be tested is inflated through the air inflation hole 24, the actual inflation time required by the gas filled with the preset pressure can be measured, whether the product 30 to be tested leaks air or is pasted with a waterproof breathable paste can be judged according to the actual inflation time, the pressure in the product 30 to be tested is kept for a period of time, the leakage amount is measured, the leakage amount is compared with the preset difference value, whether the product 30 to be detected is qualified or leaked can be further determined, so that the mechanism can simultaneously detect the air tightness of the product 30 to be detected and whether the waterproof breathable paste is leaked or not, and a plurality of products 30 to be detected are simultaneously detected, therefore, the detection speed is higher, and the efficiency and the precision are higher.

Example 2

In an embodiment of the present invention, as shown in fig. 1 to 4, on the basis of embodiment 1, a plurality of first sensors 11 are disposed on a side surface of a test rack 10, and the first sensors 11 respectively correspond to the positioning detection assemblies 20 and are used for detecting whether a product 30 to be tested is laid flat.

Set up first sensor 11 through the side at test jig 10, first sensor 11 is laser sensor, radar sensor etc. for whether detect the product 30 that awaits measuring and set level, thereby guarantee that the gas charging hole 24 of test probe 22 and the bleeder vent zonulae occludens of the product 30 that awaits measuring, avoid influencing the precision of test.

Preferably, the test jig 10 is provided with a positioning installation groove 12, and the positioning detection components 20 are all arranged in the positioning installation groove 12.

Through setting up location mounting groove 12, the size and the dimensions of location mounting groove 12 and the size matching of the product 30 that awaits measuring, location determine module 20 all sets up in location mounting groove 12, can make the product 30 that awaits measuring fix a position fast when placing the product 30 that awaits measuring, improves detection efficiency.

Further preferably, the bottom surface of the positioning installation groove 12 is provided with a plurality of air pipe positioning holes 13, and the positioning air pipes 21 are respectively arranged in the corresponding air pipe positioning holes 13.

Through setting up trachea locating hole 13, can be fixed with location trachea 21 to be favorable to making the product 30 that awaits measuring fixed when adsorbing the product 30 that awaits measuring, when avoiding the test, the product 30 that awaits measuring rocks, influences the measuring accuracy.

Preferably, the test probe 22 is further provided with a second sensor 25, and the second sensor 25 is used for detecting whether the product 30 to be tested is placed.

Through set up second sensor 25 on test probe 22, second sensor 25 is radar sensor etc. can detect whether place the product 30 that awaits measuring on the test probe 22, simultaneously, can also scan the two-dimensional code that the product 30 that awaits measuring pasted this department to the record is traceed back.

Example 3

An embodiment of the present invention, as shown in fig. 5, further includes a test cabinet 40 on the basis of embodiment 1 or embodiment 2, wherein an accommodating cavity 41 with an open side is arranged in the test cabinet 40, and the test rack 10 is installed in the accommodating cavity 41.

By providing the test cabinet 40, the test rack 10 is mounted in the receiving cavity 41 of the test cabinet 40, enabling the testing mechanism to be formed as an organic whole for use by the testing mechanism. Meanwhile, an air suction device for sucking air through the positioning air tube 21 and an air inflation device for inflating air through the test probe 22 are placed at the bottom of the test cabinet 40 to facilitate the test.

Preferably, the test cabinet further comprises a control box 42, a display screen 43, a tri-color light 44, and two safety light barriers 45. The control box 42 is arranged in the test cabinet 40 and is used for controlling the operation of the system; the display screen 43 is arranged at the top of the test cabinet 40, is connected with the control box 42 and is used for displaying test data; the three-color lamp 44 is arranged at the top end of the test cabinet 40, is connected with the control box 42 and is used for displaying a test result; the two safety gratings 45 are respectively arranged at two sides of the opening of the accommodating cavity 41 and are connected with the control box 42.

In this embodiment, the control box 42 is a PLC control box for controlling the operation of the whole system; the display screen 43 is used for displaying test data, and can display test results in forms, images and the like; the three-color lamp 44 is used for visually displaying a test result, for example, a green lamp is displayed when a product to be tested is qualified, a yellow lamp is displayed in the test process, and a red lamp is displayed when the product to be tested is unqualified; the safety grating 45 is equivalent to a start switch, when the product 30 to be tested is placed on the testing jig 10, a hand or a machine needs to be inserted into the accommodating cavity 41, and when the safety grating 45 detects that the hand or the machine completely exits the accommodating cavity 41 after the placement is completed, the control box 42 controls the system to operate and start the detection.

Example 4

An embodiment of the present invention, as shown in fig. 6, on the basis of any of the above embodiments, the present invention further provides a testing method for the tightness testing mechanism of the sealing product, including the steps of:

and S1, adsorbing the product to be tested through the positioning air pipe, enabling the product to be tested to compress the test probe, and enabling the air charging hole of the test probe to be tightly connected with the air hole of the product to be tested.

Specifically, the positioning air pipe is connected with the air suction device and used for enabling a product to be tested placed on the test frame to be tightly adsorbed on the test frame through air suction, and compressing the test probe in an adsorption process, so that the air inflation hole of the test probe can be tightly connected with the air holes of the product to be tested, and the product to be tested can be inflated through the test probe.

And S2, testing the initial pressure in the product to be tested through the pressure sensor, and obtaining the preset inflation time of the product to be tested when the preset pressure is reached through big data.

In this embodiment, taking radar as an example, the initial pressure of the product to be measured is 2Kpa, the preset pressure is 12Kpa, that is, the pressure of the charged gas is 10Kpa, and the preset charging time T of the product when the product is charged to 12Kpa is 5s according to the big data.

And S3, inflating the product to be tested through the inflation hole of the test probe to enable the product to be tested to reach the preset pressure, and measuring the actual inflation time.

And S4, maintaining the pressure of the product to be detected for a preset pressure maintaining time. In the present embodiment, the preset dwell time is 3 s.

And S5, measuring the real-time pressure in the product to be measured after the preset pressure maintaining time through the pressure sensor.

After step S5, a venting setting is also included for venting gas from the product to be tested, in this embodiment, the venting time is 1S.

And S6, obtaining a test result according to the actual inflation time and the difference value between the preset pressure and the real-time pressure.

Preferably, as shown in fig. 7, obtaining the test result specifically includes:

when the actual inflation time is longer than the preset inflation time, the product to be detected has leakage at other positions; when the actual inflation time is less than the preset inflation time, the waterproof breathable paste is not pasted at the breathable hole of the product to be detected; when the actual inflation time is equal to the preset inflation time and the difference between the preset pressure and the real-time pressure is not greater than the preset difference, the product to be tested is qualified and has not been leaked; and when the actual inflation time is equal to the preset inflation time and the difference value between the preset pressure and the real-time pressure is greater than the preset difference value, the product to be detected has leakage at other positions. The preset difference is determined according to the product characteristics, and in this embodiment, taking radar as an example, the preset difference is 0-1 pa.

After whether the product to be tested is leaked or whether the waterproof breathable paste is pasted or not is determined, the test result can be uploaded to an upper computer so that the test result can be displayed through a display screen.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.