Water immersion leak detection equipment

Abstract

A water immersion leak detection device disclosed by the present invention comprises a rack, a driving device, an objective table, a clamp assembly, an air supply device and a visual identification system, the rack is provided with a water tank, the driving device is arranged on the rack, the objective table is in transmission connection with the driving device, the driving device can drive the objective table to go up and down in the water tank, the clamp assembly is arranged on the objective table, and the air supply device is connected with the visual identification system. The clamp assembly is used for fixing a workpiece, the air supply device can be connected with the workpiece and can inflate the workpiece, and the visual recognition system is arranged on the rack and can detect bubbles of the water tank. The driving device can drive the objective table to ascend out of the water tank, so that an operator can place an inflated workpiece in the water tank conveniently, the workpiece can be clamped and fixed through the clamp assembly, then the objective table descends into the water tank through the driving device, manual operation steps can be reduced, bubbles can be automatically recognized through the visual recognition system, manual observation is replaced, and the working efficiency is improved. The automation degree is good, the detection accuracy can be improved, and manpower is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of testing equipment, and in particular to a water immersion leak detection device. Background Technology

[0002] In existing technologies, airtightness testing often employs the water immersion method. This method typically involves filling the component under test with gas at a certain pressure and immersing it in water. The presence of leaks is determined by observing the appearance of bubbles in the water. However, this method relies heavily on manual operation: operators must manually place the component in the water and maintain it for a certain period, while continuously observing the water surface for bubbles. This manual approach has significant drawbacks: firstly, it is labor-intensive and inefficient, making it unsuitable for testing large batches of products; secondly, human observation is susceptible to visual fatigue and distraction, making it easy to miss minute leaks, leading to a risk of missed detections and compromising the accuracy and reliability of the test results. Furthermore, the low level of automation in the entire testing process hinders the achievement of standardized and traceable testing procedures. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a water immersion leak detection device that can solve the problem of low automation in the detection process.

[0004] According to a first aspect of the present invention, a water immersion leak detection device includes: a frame, a drive device, a stage, a clamp assembly, an air supply device, and a vision recognition system. The frame is provided with a water tank. The drive device is disposed on the frame. The stage is pulsatorically connected to the drive device. The drive device is capable of driving the stage to move up and down within the water tank. The clamp assembly is disposed on the stage and is used to fix a workpiece. The air supply device is connected to the workpiece and is capable of inflating the workpiece with air. The vision recognition system is disposed on the frame and is capable of detecting air bubbles in the water tank.

[0005] The water immersion leak detection device according to the present invention has at least the following beneficial effects: the driving device can drive the platform to rise out of the water tank so that the operator can put the inflated workpiece in. The workpiece can be clamped and fixed by the clamping assembly. Then the driving device lowers the platform into the water tank, which can reduce manual operation steps. The visual recognition system can automatically identify air bubbles, replacing manual observation. It has a high degree of automation and can improve detection accuracy and reduce manual labor.

[0006] According to some embodiments of the present invention, the clamping assembly includes a plurality of cylinders, each cylinder having a clamping portion, the cylinders driving the clamping portion to clamp the workpiece.

[0007] According to some embodiments of the present invention, the stage includes a support seat and a base plate, the support seat is disposed on the top surface of the base plate, the base plate is provided with mesh holes, and the cylinder component is detachably mounted on the support seat.

[0008] According to some embodiments of the present invention, the driving device includes at least one driving member, the driving member is disposed on one side of the water tank, a connecting frame is provided on the top surface of the bottom plate, a transmission seat is provided on the top of the connecting frame, the transmission seat extends outside the water tank, the driving member is connected to the transmission seat in a driving manner, and the driving member is capable of driving the transmission seat to move up and down.

[0009] According to some embodiments of the present invention, at least two driving members are provided, at least one driving member is provided on each side of the water tank, and the bottom plate is provided with two connecting frames, which are disposed near the inner sidewall of the water tank.

[0010] According to some embodiments of the present invention, a filtration device is also included, wherein the water tank is provided with an inlet and an outlet connected to the filtration device, and the filtration device is capable of filtering the water in the water tank.

[0011] According to some embodiments of the present invention, the filtration device includes a circulating water pump and a filter, wherein the inlet, the circulating water pump, the filter and the outlet are connected in sequence.

[0012] According to some embodiments of the present invention, the frame includes a base and a cover, the cover is disposed on the top of the base, the base is provided with the water tank, the rear side of the water tank has a receiving cavity, the filter device and the air supply device are disposed in the receiving cavity, the drive device is provided on the left and right sides of the water tank, and the visual recognition system includes at least one camera, the cover is provided with the camera.

[0013] According to some embodiments of the present invention, an alarm device is also included, which is capable of activating an alarm based on a detection signal from the visual recognition system.

[0014] According to some embodiments of the present invention, the air supply device is also connected to each of the cylinder components and supplies air to the cylinder components.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of some embodiments of the present invention; Figure 2 for Figure 1 A schematic diagram from another direction; Figure 3 for Figure 1 Exploded view of the equipment; Figure 4 for Figure 1 A sectional view of the equipment.

[0017] Figure label: Frame 100, water tank 110, base 120, receiving cavity 121, cover 130; Drive unit 200, drive component 210; Platform 300, bearing seat 310, base plate 320, mesh 321, connecting frame 322, transmission seat 323; Fixture assembly 400, cylinder component 410, clamping part 411; Gas supply device 500; Camera 600; Workpiece 700; Filter device 800, circulating water pump 810, filter 820; Alarm device 900. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Reference Figures 1 to 4 According to a first aspect of the present invention, a water immersion leak detection device includes a frame 100, a drive device 200, a stage 300, a clamp assembly 400, an air supply device 500, and a vision recognition system. The frame 100 is provided with a water tank 110. The drive device 200 is disposed on the frame 100. The stage 300 is connected to the drive device 200 in a transmission manner. The drive device 200 can drive the stage 300 to rise and fall within the water tank 110. The clamp assembly 400 is disposed on the stage 300 and is used to fix a workpiece 700. The air supply device 500 can be connected to the workpiece 700 and can inflate the workpiece 700 with air. The vision recognition system is disposed on the frame 100 and can detect air bubbles in the water tank 110. The drive unit 200 can drive the platform 300 to rise out of the water tank 110, so that the operator can put the inflated workpiece 700 into it. The clamping assembly 400 can clamp and fix the workpiece 700. Then the drive unit 200 lowers the platform 300 into the water tank 110, which can reduce manual operation steps. The vision recognition system can automatically identify air bubbles, replacing manual observation. It has a high degree of automation and can improve detection accuracy and reduce manpower.

[0022] Specifically, the water tank 110 can be equipped with a water inlet for replenishing water. A level sensor can be installed inside the water tank 110 to stop water intake when a predetermined level is reached, and to automatically replenish water if the level is insufficient. The water tank 110 can be opened to the front of the frame 100 for easy observation by the operator. The drive unit 200 can be a drive motor or a drive cylinder. The platform 300 is connected to the drive unit 200, which drives the platform 300 to rise and fall, allowing it to rise above the water tank 110 and descend to the bottom wall of the water tank 110. The fixture assembly 400 can match the shape of the workpiece 700. After the drive device 200 drives the stage 300 to rise, the operator can directly lock the workpiece 700 onto the stage 300 using the fixture assembly 400 and connect the inflation device for inflation. Alternatively, the inspected workpiece 700 can be directly removed without manual placement or removal of it from the water tank 110, making operation more convenient and improving inspection efficiency. During inspection, air bubbles can be identified manually or through a visual recognition system. The visual recognition system can capture images of the surface of the water tank 110 and determine the airtightness of the workpiece 700 by detecting air bubbles. The specific visual recognition technology is conventional and will not be described in detail here. The entire inspection process only requires manual loading and unloading, or can be performed using a robotic arm, resulting in a high degree of automation. Furthermore, detecting air bubbles through a visual recognition system avoids human error and improves inspection accuracy.

[0023] Reference Figure 3 In some embodiments of the present invention, the clamping assembly 400 includes a plurality of cylinders 410, each cylinder 410 having a clamping portion 411, which drives the clamping portion 411 to clamp the workpiece 700. Specifically, the clamping assembly 400 needs to be submerged in the water tank 110. By configuring the clamping assembly 400 with cylinders 410, it can maintain normal operation underwater. The cylinders 410 are connected via flexible air hoses, which does not affect the lifting and lowering of the platform 300. The clamping portion 411 can be positioned on the output shaft of the cylinder 410 according to the shape of the workpiece 700. Each cylinder 410 can be arranged with a clamping position according to the shape of the workpiece 700.

[0024] Reference Figure 3In some embodiments of the present invention, the stage 300 includes a support 310 and a base plate 320. The support 310 is disposed on the top surface of the base plate 320, and the base plate 320 is provided with mesh holes 321. The cylinder component 410 is detachably mounted on the support 310. Specifically, the support 310 may be provided with multiple connection holes of different workpiece 700 specifications. The cylinder component 410 can be replaced on the support 310 according to the requirements of different specifications of workpiece 700 to meet the testing of multiple specifications of products. The base plate 320 may be provided with dense mesh holes 321 to allow water in the water tank 110 to flow through.

[0025] It is conceivable that the support 310 can also be detachably installed on the base plate 320, and different support 310s can be replaced to adapt to workpieces 700 of different specifications.

[0026] Reference Figures 3 to 4 In some embodiments of the present invention, the driving device 200 includes at least one driving member 210, which is disposed on one side of the water tank 110. A connecting frame 322 is provided on the top surface of the base plate 320, and a transmission seat 323 is provided on the top of the connecting frame 322. The transmission seat 323 extends outside the water tank 110. The driving member 210 is connected to the transmission seat 323 in a transmission manner, and the driving member 210 can drive the transmission seat 323 to move up and down. Specifically, the driving member 210 can be a cylinder component, an electric lifting component, etc., and the base plate 320 can match the shape of the bottom wall of the water tank 110 to cover the entire area of ​​the water tank 110 for the support seat 310 to be installed. The connecting bracket 322 is attached to the edge of the base plate 320 and is located near the inner wall of the water tank 110, allowing the transmission seat 323 on top of the connecting bracket 322 to extend outward to the outside of the water tank 110. This enables the driving component 210 to drive the base plate 320 inside the water tank 110 to rise and fall via the transmission seat 323 from outside the water tank 110. The driving device 200 has a simple structure and does not need to be located inside the water tank 110, thus reducing the risk of damage.

[0027] Reference Figures 3 to 4 In some embodiments of the present invention, at least two drive members 210 are provided, with at least one drive member 210 on each side of the water tank 110, and two connecting frames 322 on the bottom plate 320, the connecting frames 322 being disposed near the inner sidewall of the water tank 110. Specifically, two drive members 210 can be provided, with one drive member 210 on each of the left and right sides of the water tank 110, and connecting frames 322 and transmission seats 323 on the bottom plate 320 near the left and right sides. The two drive members 210 can simultaneously drive the bottom plate 320 to move up and down, making the lifting movement more stable.

[0028] Reference Figures 2 to 3In some embodiments of the present invention, a filter device 800 is also included. The water tank 110 is provided with an inlet and an outlet connected to the filter device 800, which can filter the water in the water tank 110. Specifically, during the testing process, impurities on the workpiece 700 can easily accumulate in the water tank 110, affecting bubble observation. By setting up the filter device 800, the water in the water tank 110 can enter the filter device 800 from the inlet for filtration, and then the filtered water can flow back into the water tank 110 from the outlet to keep the water in the water tank 110 clean, which facilitates the detection of leaking bubbles.

[0029] Reference Figures 2 to 3 In some embodiments of the present invention, the filtration device 800 includes a circulating water pump 810 and a filter 820, with the inlet, circulating water pump 810, filter 820, and outlet connected in sequence. Specifically, the inlet can be located at the bottom of the water tank 110, and the outlet can be located at a higher position on the side wall of the water tank 110. The inlet and outlet can be equipped with corresponding valves. When the circulating water pump 810 is started, it draws water from the water tank 110 into the filter 820. The filter 820 can be a cylindrical filter 820 to facilitate cleaning of the filter screen inside the cylinder. The filtered water flows back into the water tank 110 from the outlet.

[0030] Reference Figures 2 to 3 In some embodiments of the present invention, the frame 100 includes a base 120 and a cover 130. The cover 130 is located on top of the base 120. The base 120 has a water tank 110, and the rear side of the water tank 110 has a receiving cavity 121. A filter device 800 is located in the receiving cavity 121. Driving devices 200 are located on the left and right sides of the water tank 110. The visual recognition system includes at least one camera 600, and the cover 130 has a camera 600. Specifically, the base 120 has an upward-opening water tank 110, and the left and right sides of the water tank 110 have space for the driving devices 200. The rear side of the water tank 110 has a receiving cavity 121, which can accommodate a large filter device 800 and an air supply device 500. The sidewalls of the cover 130 can be made of transparent material to facilitate inward observation. Multiple cameras 600 can be provided and installed inside the cover 130. The cameras 600 can be aimed downward at the surface of the water tank 110.

[0031] Reference Figures 1 to 3 In some embodiments of the present invention, an alarm device 900 is also included, which can activate an alarm based on a detection signal from a visual recognition system. Specifically, the alarm device 900 can be electrically connected to the visual recognition system. When the visual recognition system detects a bubble and determines that there is a leak, the alarm device 900 can be activated to alert staff.

[0032] It is conceivable that the alarm device 900 could be equipped with a warning light and emit an alarm sound.

[0033] In some embodiments of the present invention, the air supply device 500 is also connected to each cylinder component 410 and supplies air to the cylinder component 410. Specifically, the air supply device 500 may be equipped with an air compressor and a buffer air tank, and can be connected to the clamp assembly 400 and the workpiece 700 through air pipes and various valves, so as to share an air source, reduce the required parts, and simplify the structure.

[0034] It is conceivable that a pressure testing instrument could be installed in the air circuit for inflating workpiece 700 to determine whether the supplied air pressure is within the normal range and to provide feedback to the air supply device 500 for control. Furthermore, the pressure testing instrument could also check the airtightness of workpiece 700 by monitoring changes in air pressure.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water immersion leak detection device, characterized in that, include: The frame (100) is equipped with a water tank (110); A drive unit (200) is mounted on a frame (100); The platform (300) is connected to the drive device (200) and the drive device (200) is capable of driving the platform (300) to rise and fall within the water tank (110); A clamping assembly (400) is provided on the stage (300) and is used to fix the workpiece (700). An air supply device (500) is capable of being connected to the workpiece (700) and of filling the workpiece (700) with air; A visual recognition system is provided on the rack (100) and is capable of detecting air bubbles in the water tank (110).

2. The water immersion leak detection device according to claim 1, characterized in that, The clamping assembly (400) includes a plurality of cylinders (410), each cylinder (410) having a clamping part (411), the cylinders (410) driving the clamping part (411) to clamp the workpiece (700).

3. The water immersion leak detection device according to claim 2, characterized in that, The stage (300) includes a support (310) and a base plate (320). The support (310) is located on the top surface of the base plate (320). The base plate (320) has a mesh (321). The cylinder component (410) is detachably installed on the support (310).

4. The water immersion leak detection device according to claim 3, characterized in that, The driving device (200) includes at least one driving member (210), which is located on one side of the water tank (110). The top surface of the base plate (320) is provided with a connecting frame (322), and the top of the connecting frame (322) is provided with a transmission seat (323). The transmission seat (323) extends outside the water tank (110). The driving member (210) is connected to the transmission seat (323) in a transmission manner, and the driving member (210) can drive the transmission seat (323) to move up and down.

5. The water immersion leak detection device according to claim 4, characterized in that, At least two drive members (210) are provided, and at least one drive member (210) is provided on both sides of the water tank (110). The bottom plate (320) is provided with two connecting brackets (322), and the connecting brackets (322) are provided close to the inner side wall of the water tank (110).

6. The water immersion leak detection device according to claim 1, characterized in that, It also includes a filter device (800), the water tank (110) is provided with an inlet and an outlet connected to the filter device (800), the filter device (800) is capable of filtering the water in the water tank (110).

7. The water immersion leak detection device according to claim 6, characterized in that, The filtration device (800) includes a circulating water pump (810) and a filter (820), with the inlet, the circulating water pump (810), the filter (820) and the outlet connected in sequence.

8. The water immersion leak detection device according to claim 6, characterized in that, The frame (100) includes a base (120) and a cover (130). The cover (130) is located on top of the base (120). The base (120) is provided with a water tank (110). The rear side of the water tank (110) has a receiving cavity (121). The filter device (800) and the air supply device (500) are located in the receiving cavity (121). The drive device (200) is provided on the left and right sides of the water tank (110). The visual recognition system includes at least one camera (600). The cover (130) is provided with the camera (600).

9. The water immersion leak detection device according to claim 1, characterized in that, It also includes an alarm device (900) that can activate an alarm based on the detection signal from the visual recognition system.

10. The water immersion leak detection device according to claim 2, characterized in that, The air supply device (500) is also connected to each of the cylinder components (410) and supplies air to the cylinder components (410).

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