Water storage tank air bag immersion type detection tool

Abstract

The utility model discloses a water storage tank air bag immersion type detection tool, which relates to the technical field of product detection and comprises a water storage tank capable of accommodating a product, an ultrasonic probe capable of extending below the water level in the water storage tank and an expansion mechanism arranged in the water storage tank. And the water level in the water storage tank is raised to be higher than the product. Through the action of the expansion mechanism, the water level in the water storage tank can be flexibly adjusted to ensure that the water level can be higher than a product to be detected, so that more comprehensive water immersion detection is realized, and compared with a detection mode that the product ascends and descends in water by utilizing a conventional lifting mechanism, the detection mode disclosed by the utility model does not need to lift and descend the product; and submerging of the product can be realized only by flexibly adjusting the height of the water level, and subsequent detection is realized.

Description

Technical Field

[0001] This utility model relates to the field of product testing technology, specifically to a water tank airbag immersion testing fixture. Background Technology

[0002] In industrial sectors such as aerospace, petrochemicals, and power, the detection of internal defects in products is crucial. Traditional inspection methods have limitations when dealing with complex-shaped workpieces, multi-layered materials, or defects requiring inspection at depths below the surface. Ultrasonic testing, as an important non-destructive testing method, utilizes the propagation characteristics of ultrasonic waves within materials to detect internal defects. This has led to the development of ultrasonic immersion probes to meet the demands for efficient and accurate inspection of complex structures and materials.

[0003] The existing testing process involves setting up a water tank, installing ultrasonic testing probes within the tank, and then placing a clamp inside the tank to hold and fix the product to be tested. Water is then added to the tank through a water pipe until the water level is above the product and maintained for a period of time before testing. Generally, if rapid immersion and removal of the product from the water is required, a lifting mechanism for supporting the clamp is installed within the tank, while maintaining a constant water level. This mechanism moves the clamp up and down within the tank, enabling the product to enter and exit the water. Existing lifting mechanisms are typically rigid structures such as cylinders or hydraulic cylinders, but these have drawbacks: firstly, the corrosion and oxidation resistance of the metal deteriorates after immersion in water; secondly, the sealing of moving parts in the mechanical structure (such as cylinders, bearing guide rods, etc.) deteriorates, allowing impurities in the water (such as aluminum shavings) to easily enter the mechanical structure, causing problems such as restricted movement, jamming, and inability to reach the correct position.

[0004] Based on this, we propose a water tank airbag immersion testing fixture to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a water tank airbag immersion testing fixture. This testing fixture, through the setting of an expansion mechanism, allows the water level in the water tank to be adjusted according to the degree of expansion to submerge the product to be tested, making the testing convenient and flexible.

[0006] To solve the above problems, this utility model provides the following technical solution:

[0007] The water tank airbag immersion testing fixture includes a water tank that can hold the product, an ultrasonic probe that can be inserted into the water tank below the water level, and an expansion mechanism located in the water tank. When the product is placed in the water tank, the expansion mechanism can expand to raise the water level in the water tank until it is higher than the product.

[0008] As a further embodiment of this utility model: the expansion mechanism includes an airbag disposed in the water storage tank. The airbag has a contracted state and an expanded state that can be switched between each other, so that when the product is placed in the water storage tank, the airbag can switch from the contracted state to the expanded state.

[0009] As a further embodiment of this utility model: a limiting frame is provided in the water storage tank, and an airbag is located in the limiting frame. The airbag has a common inlet and outlet for inflation and deflation, and the common inlet and outlet of the airbag is clamped and limited by two parallel crossbeams on the limiting frame.

[0010] As a further embodiment of this utility model: the testing fixture also includes a three-way connector, an inflation / deflation connector is provided on the wall of the water storage tank, a pressure relief valve is provided on one end of the three-way connector, and the other two ends are respectively connected to the common inlet and outlet of the airbag and the inflation / deflation connector.

[0011] As a further embodiment of this utility model, the testing fixture also includes a workbench located inside the water storage tank and a clamp located on the workbench.

[0012] As a further embodiment of this utility model: the fixture includes a base plate disposed on the top of the workbench, and a plurality of clamping blocks are evenly distributed on the base plate.

[0013] As a further embodiment of this utility model: the airbag is cylindrical in shape, and the common inlet and outlet are located at the end of the airbag.

[0014] As a further embodiment of this utility model, the water storage tank is equipped with a number of pressure sensors and a number of liquid level sensors.

[0015] As a further embodiment of this utility model: the testing fixture also includes an air pump and a solenoid valve, the air outlet of the air pump is connected to the air inlet of the solenoid valve, and the air outlet of the solenoid valve is connected to the air filling and exhaust connector.

[0016] As a further embodiment of this invention, the testing fixture also includes a robotic arm located beside the water storage tank, with an ultrasonic probe mounted on the end effector of the robotic arm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By using the expansion mechanism, the water level in the water tank can be flexibly adjusted to ensure that the water level is higher than the product to be tested, thereby achieving a more comprehensive immersion test. Compared with the test method that uses a conventional lifting mechanism to raise and lower the product in the water, the test method of this application does not require the product to be raised or lowered. The product can be submerged simply by flexibly adjusting the water level to achieve subsequent testing.

[0019] 2. As the core component of the expansion mechanism, the airbag can flexibly switch between the contracted and expanded states. It is easy to operate and responds quickly. This design not only improves the detection efficiency but also ensures the stability of water level regulation, making it suitable for the detection of products of different sizes.

[0020] 3. The setting of the limiting frame effectively fixes the position of the airbag and prevents it from shifting during the inflation process. The design of the shared inlet and outlet simplifies the inflation and deflation operation of the airbag. The clamping and limiting of the two parallel crossbeams further enhances the stability of the structure and improves the reliability of the overall tooling.

[0021] 4. The introduction of the three-way connector makes the inflation and deflation of the airbag more convenient, while the setting of the pressure relief valve ensures the safety of the airbag under high pressure. This design not only improves the flexibility of operation, but also enhances the safety performance of the tooling, and is suitable for long-term and high-frequency testing tasks.

[0022] 5. The design of the workbench and fixtures ensures that the product can be firmly fixed during the testing process, preventing displacement caused by changes in water level. This structure improves the accuracy of the test and is especially suitable for products that require high-precision testing.

[0023] 6. The introduction of a pressure sensor enables real-time monitoring of air pressure changes within the airbag, while the introduction of a liquid level sensor enables real-time monitoring of water level changes at a specific point in the water tank. The two work together, and when either reaches a set threshold, the airbag stops inflating, ensuring safety during the testing process. This design improves the intelligence level of the tooling and is suitable for application scenarios with high requirements for the testing environment. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 .

[0027] In the diagram: 1. Water tank; 2. Ultrasonic probe; 3. Airbag; 301. Common inlet / outlet; 4. T-connector; 5. Inflation / exhaust connector; 6. Pressure relief valve; 7. Limiting frame; 8. Parallel beam; 9. Workbench; 10. Base plate; 11. Clamping block; 12. Pressure sensor; 13. Air pump; 14. Solenoid valve; 15. Robotic arm. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-2 As shown, the water tank airbag immersion testing fixture includes a water tank 1 and a robotic arm 15 located beside the water tank 1. An ultrasonic probe 2 is mounted on the end effector of the robotic arm 15. When the product to be tested is placed in the water tank 1 and below the water level, the robotic arm 15 can drive the ultrasonic probe 2 below the water level to test the product. Similarly, to automate the placement and removal of products from the water tank 1, this application may also include a robotic arm located beside the water tank 1. A gripping component can be mounted on the end effector of the robotic arm, allowing for the appropriate gripping of the product.

[0030] To facilitate product testing, this application includes an expansion mechanism within the water tank 1, provided the product is placed above the water level. This expansion mechanism has two states: a contraction state and an expansion state. Normally, the expansion mechanism is in the contraction state. When it is necessary to lower the product below the water level, the mechanism can be switched from the contraction state to the expansion state. During this switch, the expansion mechanism displaces a certain amount of water, causing the water level to gradually rise until it is higher than the product. Maintaining this expansion state ensures the product remains below the water level, facilitating subsequent testing. After testing, simply switching the expansion mechanism from the expansion state back to the contraction state lowers the water level below the product's initial position.

[0031] To automate the control of the water level, this application includes several pressure sensors 12 within the water storage tank 1. These pressure sensors 12 monitor the expansion amount of the expansion mechanism. As the water level gradually rises, it indicates that the expansion mechanism is expanding. When the water level reaches a preset position higher than the product, the pressure sensors 12 transmit a pressure signal to the controller. The controller then acts on the expansion mechanism, stopping its expansion. Similarly, several level sensors (not shown in the figure) can be added to the water storage tank 1. These level sensors detect changes in the water level at a specific location within the tank, reflecting the liquid level height. When a level sensor detects that a location is covered by water, it transmits a level signal to the controller. The controller then acts on the expansion mechanism, stopping its expansion. The pressure sensors and level sensors can be used simultaneously, and either one will act on the expansion mechanism once it reaches a set threshold. It should be noted that the controller is designed using conventional technologies, such as microcontrollers and PLCs. To avoid unnecessary complexity, these will not be elaborated upon here.

[0032] The expansion mechanism can be any component with the aforementioned contraction and expansion characteristics found in the prior art, such as the airbag 3. This application uses the airbag 3 as an example for illustration: the expansion mechanism includes an airbag 3 (preferably cylindrical), which has switchable contraction and expansion states. When transitioning from the contraction state to the expansion state, it is only necessary to inflate the airbag 3; when transitioning from the expansion state to the contraction state, it is only necessary to deflate the airbag 3.

[0033] In order to ensure that the airbag 3 can be stably placed in the water tank 1, this application provides a limiting frame 7 in the water tank 1. The limiting frame 7 is located outside the airbag 3 and serves to limit the airbag 3. At the same time, in order to more stably inflate and deflate the common inlet and outlet 301 of the airbag 3, two parallel beams 8 are provided on the limiting frame 7. The common inlet and outlet 301 is limited between the two parallel beams 8. When inflating and deflateing the common inlet and outlet 301, the airbag 3 can be stably inflated and deflated because the common inlet and outlet 301 is limited.

[0034] In this application, the airbag 3's inlet and outlet are set as a common inlet / outlet 301. This application also includes a three-way connector 4, an air pump 13, a solenoid valve 14, and an inflation / deflation connector 5 located on the wall of the water storage tank 1. The specific connections are as follows: the air outlet of the air pump 13 is connected to the air inlet of the solenoid valve 14; the air outlet of the solenoid valve 14 is connected to one end of the inflation / deflation connector 5; the first end of the three-way connector 4 is connected to the common inlet / outlet 301 of the airbag 3; the second end is equipped with a pressure relief valve 6 (which relieves pressure when the internal pressure of the airbag 3 is too high); and the third end is connected to the other end of the inflation / deflation connector 5 via a flexible hose (not shown in the figure). When it is necessary to inflate the airbag 3, the air pump 13 can be started, the solenoid valve 14 can be switched to the inflation state, and the gas flow can be controlled to the inflation / deflation connector 5 to inflate the airbag 3. When the water level reaches the specified height, the airbag 3 can be pressurized. When it is necessary to deflate the airbag 3, the solenoid valve 14 can be switched to the deflation state to deflate the airbag 3.

[0035] Furthermore, to ensure the product is stably placed inside the water tank 1, this application also includes a worktable 9 disposed within the water tank 1 and a clamp disposed on the worktable 9. The clamp can be any type of clamping component with clamping function in the prior art. For example, the clamp includes a base plate 10 disposed on the top of the worktable 9, on which a plurality of clamping blocks 11 are evenly distributed, and the plurality of clamping blocks 11 form an adjustable clamping area, which is used to limit and fix the product.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A water tank airbag immersion testing fixture, characterized in that, It includes a water tank (1) that can hold the product, an ultrasonic probe (2) that can be inserted into the water tank (1) below the water level, and an expansion mechanism installed in the water tank (1). When the product is placed in the water tank (1), the expansion mechanism can expand to raise the water level in the water tank (1) until it is higher than the product.

2. The water tank airbag immersion testing fixture according to claim 1, characterized in that, The expansion mechanism includes an airbag (3) disposed in the water tank (1). The airbag (3) has a contracted state and an expanded state that can be switched between each other, so that when the product is placed in the water tank (1), the airbag (3) can switch from the contracted state to the expanded state.

3. The water tank airbag immersion testing fixture according to claim 2, characterized in that, The water storage tank (1) is provided with a limiting frame (7), and the airbag (3) is located in the limiting frame (7). The airbag (3) has a common inlet and outlet (301) for inflation and deflation, and the common inlet and outlet (301) of the airbag (3) is clamped and limited by two parallel crossbeams (8) on the limiting frame (7).

4. The water tank airbag immersion testing fixture according to claim 3, characterized in that, The testing fixture also includes a three-way connector (4), an air filling and air filling connector (5) is provided on the wall of the water storage tank (1), a pressure relief valve (6) is provided on one end of the three-way connector (4), and the other two ends are respectively connected to the common inlet and outlet (301) of the airbag (3) and the air filling and air filling connector (5).

5. The water tank airbag immersion testing fixture according to any one of claims 1-4, characterized in that, The testing fixture also includes a workbench (9) located inside the water tank (1) and a clamp located on the workbench (9).

6. The water tank airbag immersion testing fixture according to claim 5, characterized in that, The fixture includes a base plate (10) disposed on the top of the workbench (9), and a plurality of clamping blocks (11) are evenly distributed on the base plate (10).

7. The water tank airbag immersion testing fixture according to claim 3 or 4, characterized in that, The airbag (3) is cylindrical in shape and has a common inlet and outlet (301) located at the end of the airbag (3).

8. The water tank airbag immersion testing fixture according to any one of claims 1-4, characterized in that, The water storage tank (1) is equipped with several pressure sensors (12) and several liquid level sensors.

9. The water tank airbag immersion testing fixture according to claim 4, characterized in that, The testing fixture also includes an air pump (13) and a solenoid valve (14). The air outlet of the air pump (13) is connected to the air inlet of the solenoid valve (14), and the air outlet of the solenoid valve (14) is connected to the air filling and exhaust connector (5).

10. The water tank airbag immersion testing fixture according to any one of claims 1-4, characterized in that, The testing fixture also includes a robotic arm (15) located next to the water tank (1), and an ultrasonic probe (2) located on the end effector of the robotic arm (15).

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