Camera shell air tightness detection equipment

Abstract

The utility model relates to the technical field of camera shell air tightness detection, and discloses camera shell air tightness detection equipment, which comprises a downward pressing module, a guide module, a base module and an air tightness detection assembly, and is characterized in that the downward pressing module comprises a guide plate, the guide plate is arranged in an ascending or descending manner under driving force, and the guide module is used for guiding of the guide plate; the base module is provided with a base groove, the base groove is used for placing a camera shell, the airtightness detection assembly comprises an airtightness detector, a detection plate and a main detection pipe, the airtightness detector is used for detecting the airtightness of the camera shell, the downward pressing module is used for applying downward pressing force to the detection plate, and the detection plate is pressed to drive the main detection pipe to abut against the camera shell. Through the cooperation of the air tightness detector and the main detection tube, the air tightness of the camera housing is detected. In this way, the automation degree of air tightness detection is high, manual intervention is reduced, the pressing accuracy of the pressing module is effectively guaranteed, the clamping accuracy of the camera shell is improved, and the air tightness detection effect and the air tightness detection accuracy are guaranteed.

Description

Technical Field

[0001] This utility model patent relates to the technical field of camera housing airtightness testing, and more specifically, to camera housing airtightness testing equipment. Background Technology

[0002] As an essential component of electronic devices, the camera's performance affects the user experience. The camera housing is used to assemble the various components of the camera, thereby enabling the camera to take photos and videos.

[0003] Currently, the airtightness of the camera housing affects the overall lifespan of the camera. Therefore, it is necessary to conduct airtightness testing on the manufactured camera housings. For example, the prior patent with authorization announcement number CN211855722U discloses an airtightness testing fixture for cameras, used to test the airtightness of the camera's sealing parts. The airtightness testing fixture includes a base assembly, a pressurizing mechanism, a water tank, and a positioning clamp assembly. The base assembly is provided with a positioning part, the camera is located at the positioning part, and the positioning clamp assembly presses the camera down from above. The base assembly is also provided with a cavity, which is connected to the pressurizing mechanism through a first pipe and to the water tank through a second pipe. A pressure relief valve is provided between the second pipe and the water tank. The camera's sealing part is fastened to the opening of the cavity, and a first sealing element is also provided at the camera's sealing part. The first sealing element and the camera's sealing part together seal the opening of the cavity.

[0004] In existing technologies, the camera housing is positioned by swinging, which has poor automation, easily leads to camera housing displacement, insufficient positioning accuracy, and affects the airtightness detection effect and accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a camera housing airtightness testing device, which aims to solve the problem of insufficient positioning accuracy in existing camera housing airtightness testing devices.

[0006] This utility model is implemented as follows: a camera housing airtightness testing device includes a pressing module, a guiding module, a base module, and an airtightness testing assembly. The pressing module includes a guide plate, which is arranged to rise or fall under a driving force. The guiding module passes through the guide plate and is used to guide the guide plate longitudinally. The base module has a base groove for placing the camera housing. The airtightness testing assembly includes an airtightness detector, a testing plate, and a main testing tube. The airtightness detector and the main testing tube are arranged in communication and the airtightness detector is used to test the airtightness of the camera housing. The testing plate and the main testing tube are arranged vertically, and the main testing tube is arranged longitudinally. The pressing module is located above the testing plate and is used to apply downward pressure to the testing plate. The pressure on the testing plate causes the main testing tube to press against the camera housing.

[0007] Furthermore, the pressing module includes a pressing plate and multiple pressing columns. The pressing plate is arranged horizontally, and the pressing columns are arranged longitudinally. The two ends of the pressing columns are respectively connected to the guide plate and the pressing plate. The pressing plate and the detection plate are stacked together.

[0008] Furthermore, pressure plate grooves are formed at both ends of the lower pressure plate, and the pressure plate grooves are arranged in a through manner. The lower pressure module includes two positioning rods, which are arranged longitudinally. The two positioning rods are respectively arranged to dock with the guide plate and the base module, and the positioning rods can move through the pressure plate grooves.

[0009] Furthermore, the camera housing airtightness testing device includes a pressure limiting component, which includes a horizontal limiting plate and a vertical limiting plate. The horizontal limiting plate is arranged horizontally, and its two ends are respectively connected to the upper part of the vertical limiting plate. The lower part of the vertical limiting plate extends longitudinally in the direction toward the base module, and the base groove is located below the horizontal limiting plate. The detection plate is stacked with the horizontal limiting plate, and the main inspection tube extends downward through the horizontal limiting plate. The lower part of the vertical limiting plate and the lower part of the main inspection tube are synchronously abutting each other.

[0010] Furthermore, the guide module includes four guide rods, which are arranged longitudinally, with the four guide rods arranged at four corresponding corners, and the four guide rods synchronously penetrating the guide plate.

[0011] Furthermore, the base module includes an upper substrate and a lower substrate, the upper substrate and the lower substrate are stacked together, the upper substrate forms the base groove, the lower substrate has at least one air detection cavity, the upper part of the air detection cavity is connected to the base groove, the lower part of the air detection cavity is connected to the air tightness detector, and the air tightness detector is used to detect the airflow state of the air detection cavity.

[0012] Furthermore, the upper substrate has a plurality of base grooves, each base groove being arranged at intervals along the length direction, and the lower substrate has a plurality of gas detection channels, each gas detection channel being arranged in a one-to-one correspondence with each base groove and connected to it, and each gas detection channel being connected to the air tightness detector.

[0013] Furthermore, the base module includes a bottom substrate, which is horizontally placed and fixedly arranged, and the upper substrate, the lower substrate and the bottom substrate are stacked in sequence; the bottom substrate has a confluence cavity, and each of the gas detection channels is arranged in communication with the confluence cavity, and the confluence cavity is arranged in communication with the air tightness detector.

[0014] Furthermore, the airtightness testing assembly includes a secondary test tube, which is arranged longitudinally and is arranged at intervals with the main test tube; the camera housing has an outer shell and a shell hole, the main test tube extends through the shell hole into the interior of the camera housing, and the secondary test tube is arranged against the outer shell.

[0015] Furthermore, the camera housing airtightness testing equipment includes a testing box, a workbench, and a control box. The testing box, the control box, and the airtightness tester are respectively installed on the workbench, and the airtightness tester and the pressure module are respectively arranged in signal communication with the control box.

[0016] Compared with existing technologies, the camera housing airtightness testing equipment provided by this utility model, when performing airtightness testing on the camera housing, loads the camera housing into the base groove, which positions the camera housing. Then, the pressing module moves downwards, and under the positioning effect of the guide module, the linearity and accuracy of the pressing module's movement are ensured. The pressing module applies downward pressure to the detection plate, which drives the main inspection tube to press against the camera housing. Then, through the cooperation of the airtightness tester and the main inspection tube, the airtightness of the camera housing is tested. In this way, the degree of automation is high, manual intervention is reduced, the pressing accuracy of the pressing module is effectively guaranteed, and the loading and clamping accuracy of the camera housing is improved, ensuring the airtightness testing effect and accuracy. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the camera housing airtightness testing device provided by this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the cooperation between the pressure module and the base module of the camera housing airtightness testing device provided by this utility model;

[0019] Figure 3This is a three-dimensional schematic diagram of the cooperation between the upper substrate and the main inspection tube of the camera housing airtightness testing device provided by this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the upper substrate of the camera housing airtightness testing device provided by this utility model in the loading state;

[0021] Figure 5 This is a three-dimensional schematic diagram of the upper substrate of the camera housing airtightness testing device provided by this utility model;

[0022] Figure 6 This is a three-dimensional schematic diagram of the lower substrate of the camera housing airtightness testing device provided by this utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the cooperation between the base module and the airtightness testing assembly of the camera housing airtightness testing device provided by this utility model;

[0024] Figure 8 This is a three-dimensional schematic diagram of the camera housing airtightness testing device provided by this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Reference Figure 1-8 The image shown is a preferred embodiment of the present invention.

[0029] The camera housing airtightness testing equipment includes a pressing module 1, a guide module 2, a base module 3, and an airtightness testing assembly 4. The pressing module 1 includes a guide plate 11, which is arranged to rise or fall under the driving force. The guide module 2 passes through the guide plate 11 and is used to guide the guide plate 11 longitudinally. The base module 3 has a base groove 311 for placing the camera housing. The airtightness testing assembly 4 includes an airtightness detector, a testing plate 41, and a main testing tube 42. The airtightness detector and the main testing tube 42 are arranged in communication and the airtightness detector is used to test the airtightness of the camera housing 5. The testing plate 41 and the main testing tube 42 are arranged vertically and vertically. The pressing module 1 is located above the testing plate 41 and is used to apply downward pressure to the testing plate 41. The testing plate 41 is pressed, causing the main testing tube 42 to press against the camera housing 5.

[0030] The aforementioned camera housing airtightness testing equipment, when performing airtightness testing on the camera housing 5, loads the camera housing 5 into the base groove 311, which positions the camera housing 5. Then, the pressing module 1 moves downwards, and under the positioning effect of the guide module 2, the linearity and accuracy of the pressing module 1's movement are ensured. The pressing module 1 applies downward pressure to the detection plate 41, and the detection plate 41 drives the main inspection tube 42 to press against the camera housing 5. Then, through the cooperation of the airtightness tester and the main inspection tube 42, the airtightness of the camera housing 5 is tested. In this way, the degree of automation is high, manual intervention is reduced, the pressing accuracy of the pressing module 1 is effectively guaranteed, and the loading and clamping accuracy of the camera housing 5 is improved, ensuring the airtightness testing effect and accuracy.

[0031] The air tightness tester works by filling the camera housing 5 with a certain pressure of gas (such as air or nitrogen) and monitoring the internal pressure of the camera housing 5 in real time through a high-precision pressure sensor. If the internal pressure drops significantly over time, it indicates that there is a leak and the product is not airtight.

[0032] Alternatively, by evacuating the inside of the camera housing 5 through the main inspection tube 42, the internal volume of the camera housing 5 is V, and the internal pressure is P. Under constant temperature conditions, after a few seconds or tens of seconds, its internal volume does not change, but the internal pressure drops by a certain value ΔP. At this point, we can determine that the gas sealing performance of the workpiece is poor.

[0033] In the actual airtightness test, an allowable leakage value is defined. When the leakage value of the camera housing 5 is less than this value, the workpiece is considered "leak-free" and is called a qualified product. Only when the leakage value of the camera housing 5 is greater than this value is it considered "unqualified" or "severely leaking".

[0034] Alternatively, by filling the inside of the camera housing 5 with gas through the main inspection tube 42, the internal pressure of the camera housing 5 is P. Under constant temperature, after a few seconds or tens of seconds, its internal volume does not change, but the internal pressure drops by a certain value ΔP. At this time, we can determine that the gas sealing performance of the workpiece is not good.

[0035] The lower part of the main inspection tube 42 is equipped with a sealing ring. When the air tightness is tested, the sealing ring is arranged in a pressing manner with the camera housing 5. Under the action of the sealing ring, leakage is avoided and the accuracy of the air tightness test is improved.

[0036] The pressing module 1 includes a pressing plate 12 and multiple pressing columns 13. The pressing plate 12 is arranged horizontally, and the pressing columns 13 are arranged vertically. The two ends of the pressing columns 13 are respectively connected to the guide plate 11 and the pressing plate 12. The pressing plate 12 is stacked with the detection plate 41. In this way, under the action of the pressing columns 13, the rising or falling of the guide plate 11 drives the pressing plate 12 to rise or fall, thereby driving the detection plate 41 to rise or fall, so as to press down on the camera housing 5 and prevent leakage.

[0037] The two ends of the lower pressure plate 12 form pressure plate grooves, which are arranged in a through manner. The lower pressure module 1 includes two positioning rods, which are arranged longitudinally. The two positioning rods are respectively connected to the guide plate 11 and the base module 3. The positioning rods can move through the pressure plate grooves.

[0038] In this way, the two positioning rods can position and limit the movement of the lower pressure plate 12, thereby improving the accuracy of the movement of the lower pressure plate 12.

[0039] The camera housing airtightness testing equipment includes a pressure limiting component 6, which includes a horizontal limiting plate and a vertical limiting plate. The horizontal limiting plate is arranged horizontally, and its two ends are respectively connected to the upper part of the vertical limiting plate. The lower part of the vertical limiting plate extends longitudinally in the direction towards the base module 3, and the base groove 311 is located below the horizontal limiting plate. The detection plate 41 is stacked with the horizontal limiting plate, and the main inspection tube 42 extends downward through the horizontal limiting plate. The lower part of the vertical limiting plate and the lower part of the main inspection tube 42 are synchronously abutting each other.

[0040] In this way, under the action of the pressure limiting component 6, the downward pressure of the pressure module 1 is prevented from being too large, which protects the camera housing 5 and prevents the camera housing 5 from being damaged by pressure.

[0041] In other words, when the pressure limiting component 6 moves to a point of contact with the base module 3, the lower part of the main inspection tube 42 is arranged in a pressing manner with the camera housing 5. At this time, the movement of the main inspection tube 42 is completed, and the contact sealing with the camera housing 5 is completed, which facilitates the subsequent airtightness test of the camera housing 5.

[0042] The guide module 2 includes four guide rods 21, which extend longitudinally and are arranged at four corresponding corners. The four guide rods 21 pass through the guide plate 11 synchronously. In this way, under the action of the four guide rods 21, the movement of the guide plate 11 is positioned and the offset is limited, ensuring the accuracy of the movement of the guide plate 11 and ensuring that the downward pressure is applied horizontally downward.

[0043] The base module 3 includes an upper substrate 31 and a lower substrate 32, which are stacked together. The upper substrate 31 forms a base groove 311, and the lower substrate 32 has at least one air detection channel 321. The upper part of the air detection channel 321 is connected to the base groove 311, and the lower part of the air detection channel 321 is connected to an air tightness detector. The air tightness detector is used to detect the airflow state of the air detection channel 321. In this way, the air tightness of the camera housing 5 can be detected by the cooperation of the air detection channel 321 and the air tightness detector.

[0044] The upper substrate 31 has a plurality of base grooves 311, which are arranged at intervals along the length direction. The lower substrate 32 has a plurality of air detection channels 321, which are arranged in a one-to-one correspondence with each base groove 311 and are connected. Each air detection channel 321 is also connected to an air tightness tester. In this way, multiple camera housings 5 ​​can be tested for air tightness at the same time, thus improving the testing efficiency.

[0045] The base module 3 includes a base plate 33, which is horizontally placed and fixedly arranged. The upper base plate 31, the lower base plate 32 and the base plate 33 are stacked in sequence. The base plate 33 has a merging cavity, and each air detection channel 321 is connected to the merging cavity. The merging cavity is connected to the air tightness detector.

[0046] This makes it easier to test each gas detection cavity 321 without having to set up multiple detection ports, thus reducing costs and space requirements.

[0047] The airtightness testing assembly 4 includes a secondary test tube 43, which is arranged longitudinally and is spaced apart from the main test tube 42. The camera housing 5 has an outer shell and a shell hole. The main test tube 42 extends through the shell hole into the interior of the camera housing 5, while the secondary test tube 43 is arranged against the outer shell. Under the action of the secondary test tube 43, the outer shell of the camera housing 5 is tested. At the same time, the secondary test tube 43 can also serve as a reference to improve the testing accuracy of the main test tube 42.

[0048] The camera housing airtightness testing equipment includes a testing box, a workbench 7, and a control box. The testing box, control box, and airtightness tester are respectively installed on the workbench 7. The airtightness tester and the pressure module 1 are respectively arranged in a signal communication with the control box. In this way, the operator can control the pressure module 1 and the airtightness tester through the control box, which is simple and convenient.

[0049] The air tightness tester can be positive pressure type, differential pressure type, or quantitative type. Models: JC-TC-50, JC-TC-100, JC-TC-500, JC-TC-S20, JC-C100051, JC-LZ10020.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A camera housing air tightness detection apparatus, characterized in that, The application relates to a camera shell air tightness detection equipment, which comprises a downward pressing module, a guide module, a base module and an air tightness detection assembly, the downward pressing module comprises a guide plate, the guide plate is arranged to ascend or descend under the action of a driving force, the guide module penetrates through the guide plate and is used for longitudinally guiding the guide plate, the base module has a base groove used for placing a camera shell, the air tightness detection assembly comprises an air tightness detector, a detection plate and a main detection pipe, the air tightness detector is arranged in communication with the main detection pipe and is used for detecting the air tightness of the camera shell, the detection plate is arranged in upper and lower assembly with the main detection pipe, the main detection pipe is arranged longitudinally, the downward pressing module is arranged above the detection plate and is used for applying downward pressing force to the detection plate, and the detection plate drives the main detection pipe to press against the camera shell under the action of the pressure.

2. The camera housing hermeticity inspection apparatus of claim 1, wherein, The downward pressing module comprises a downward pressing plate and a plurality of downward pressing columns, the downward pressing plate is arranged horizontally, the downward pressing columns are arranged longitudinally, the two ends of the downward pressing columns are respectively arranged in butt joint with the guide plate and the downward pressing plate, and the downward pressing plate is arranged in stack with the detection plate.

3. The camera housing hermeticity inspection apparatus of claim 2, wherein, The two ends of the downward pressing plate are respectively formed with pressing plate grooves arranged in penetration, the downward pressing module comprises two positioning rods arranged longitudally, the two ends of the positioning rods are respectively arranged in butt joint with the guide plate and the base module, and the positioning rods are movably penetrated through the pressing plate grooves.

4. The camera housing hermeticity inspection apparatus of any one of claims 1-3, wherein, The camera shell air tightness detection equipment comprises a pressure limiting piece, the pressure limiting piece comprises a horizontal limiting plate and a vertical limiting plate, the horizontal limiting plate is arranged horizontally, the two ends of the horizontal limiting plate are respectively arranged in butt joint with the upper part of the vertical limiting plate, the lower part of the vertical limiting plate is arranged in longitudinal extension towards the base module, and the base groove is arranged below the horizontal limiting plate; the detection plate is arranged in stack with the horizontal limiting plate, the main detection pipe is penetrated through the horizontal limiting plate and arranged in downward extension, the lower part of the vertical limiting plate is arranged in synchronous contact with the lower part of the main detection pipe.

5. The camera housing hermeticity inspection apparatus of any one of claims 1-3, wherein, The guide module comprises four guide rods arranged in longitudinal extension, the four guide rods are arranged in four-corner corresponding arrangement, and the four guide rods are synchronously penetrated through the guide plate.

6. The camera housing hermeticity inspection apparatus of any one of claims 1-3, wherein The base module comprises an upper base plate and a lower base plate arranged in stack, the upper base plate forms the base groove, and the lower base plate has at least one air detection cavity, the upper part of the air detection cavity is arranged in communication with the base groove, the lower part of the air detection cavity is arranged in communication with the air tightness detector, and the air tightness detector is used for detecting the air flow state of the air detection cavity.

7. The camera housing hermeticity inspection apparatus of claim 6, wherein, The upper base plate is formed with a plurality of base grooves arranged in length direction in interval corresponding arrangement, the lower base plate is formed with a plurality of air detection cavities arranged in one-to-one corresponding and communication with the base grooves, and each air detection cavity is arranged in communication with the air tightness detector.

8. The camera housing hermeticity inspection apparatus of claim 7, wherein, The base module includes a bottom substrate, the bottom substrate is horizontally arranged and fixed, the upper substrate, the lower substrate and the bottom substrate are sequentially arranged and fixed; the bottom substrate has a convergence cavity, each gas detection cavity is in communication with the convergence cavity, and the convergence cavity is in communication with the air tightness detector.

9. The camera housing hermeticity inspection apparatus of any one of claims 1-3, wherein, The air tightness detection assembly includes a sub-detection tube, the sub-detection tube is arranged longitudinally, and the sub-detection tube is arranged in spaced correspondence with the main detection tube; the camera housing has a shell outer surface and a shell hole portion, the main detection tube extends through the shell hole portion to the inside of the camera housing, and the sub-detection tube is arranged in abutment with the shell outer surface.

10. The camera housing hermeticity inspection apparatus of any one of claims 1-3, wherein, The camera housing air tightness detection equipment includes a detection box, a workbench and a control box, the detection box, the control box and the air tightness detector are respectively arranged on the workbench, and the air tightness detector and the lower pressing module are respectively in signal communication with the control box.

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