A smart helium leak detection device for steel drum welds

Abstract

This utility model discloses an intelligent helium leak detection device for steel drum welds, relating to the field of weld detection technology. It includes an operating table with a welding device mounted on one end of its upper surface and a positioning platform fixedly mounted on the other end. A helium injection device is movably connected to the top of the positioning platform. The helium injection device includes a support frame, a gas supply pipe, and a gas tank. The support frame is rotatably connected to the positioning platform. Helium from the gas tank is delivered through the gas supply pipe, and a cover plate covers the opening of the steel drum. Helium is injected into the inside of the steel drum through the gas supply pipe. If there is a leak in the weld, helium will escape. By capturing the helium, the leak can be determined. The leak point can be intelligently identified based on the helium flow path. A servo motor and gear meshing drive the support plate to rotate, achieving precise positioning and rotation of the steel drum, facilitating comprehensive weld detection. The support frame in the helium injection device is rotatable and will not affect the normal deployment of the steel drum.

Description

Technical Field

[0001] This utility model relates to the field of weld seam inspection technology, and in particular to an intelligent helium leak detection device for steel barrel weld seams. Background Technology

[0002] Steel drum weld inspection is a process of testing the sealing performance, strength, and other properties of the welded joints of steel drums. After welding, steel drums may have defects such as porosity, cracks, and incomplete penetration, which can lead to leakage.

[0003] For example, CN218847561U discloses a sealing detection device for the weld seam of a steel drum, including a base and a horizontal plate. The horizontal plate is supported and fixed on the top of the base by a support rod, and the support rod is located on the lower outer side of the horizontal plate. A bottom groove is opened in the middle of the surface of the base, and a lower rubber sleeve is embedded and fixed inside the bottom groove. A pressure sensor is installed in the middle of the surface of the base. An electric push rod is vertically installed in the middle of the surface of the horizontal plate. The protruding end of the electric push rod extends through to the bottom of the horizontal plate, and a lifting plate is horizontally welded and fixed at the bottom of the electric push rod.

[0004] However, existing steel drum weld inspection devices have low inspection efficiency because they mostly use manual operation or semi-automated processes. The steel drums need to be moved multiple times and the inspection steps are cumbersome and time-consuming. The positioning is also inaccurate. Due to the lack of a precise positioning mechanism, the steel drums are placed in a large position, making it difficult to align the weld during inspection, resulting in missed or false inspections. This makes it difficult to meet the high efficiency and accuracy requirements for weld sealing inspection in the steel drum production process. Utility Model Content

[0005] The purpose of this invention is to solve the problems of low detection efficiency, inaccurate positioning, and complex structure in the existing technology, and to propose an intelligent helium leak detection device for steel barrel welds.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent helium leak detection device for steel barrel welds, comprising an operating table, a welding device installed at one end of the upper surface of the operating table, a positioning platform fixedly installed at the other end of the upper surface of the operating table, a helium injection device movably connected to the top of the positioning platform, the helium injection device comprising a support frame, a gas supply pipe and a gas tank, the support frame being rotatably connected to the positioning platform, the gas supply pipe being fixedly installed on the top of the support frame, the other end of the gas supply pipe being connected to the gas tank, and a cover plate being fitted onto the outer wall of the support frame.

[0007] Preferably, a support platform is fixedly installed on the top of the positioning platform, and a support plate is rotatably installed on the top of the support platform.

[0008] Preferably, a servo motor is fixedly installed at one end of the support platform, and a gear is fixedly installed at the output end of the servo motor, with the gear meshing with the support plate.

[0009] Preferably, sliders are slidably connected to both sides of the support frame, and a strip hole is provided at the junction of the support frame and the sliders.

[0010] Preferably, a limit rod is fixedly installed on the lower surface of the slider, and an extension plate is fixedly installed on the bottom of the support frame.

[0011] Preferably, the bottom of the positioning platform has a positioning hole, and the limiting rod passes through the extension plate and is inserted into the positioning hole.

[0012] Preferably, the slider has a through hole inside.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, helium gas in the gas tank is transported through a gas delivery pipe, and a cover plate covers the opening of the steel drum. Helium gas is injected into the inside of the steel drum through the gas delivery pipe. If there is a leak in the weld, helium gas will escape. The leak can be judged by capturing the helium gas. The leak point can be intelligently determined according to the flow path of the helium gas. The support plate is rotated by the meshing of a servo motor and gears to achieve precise positioning and rotation of the steel drum, which facilitates comprehensive inspection of the weld. The support frame in the helium gas injection device can rotate without affecting the normal deployment of the steel drum.

[0015] 2. In this utility model, when it is necessary to deploy the steel barrel, first pull the slider upward to drive the limiting rod to move on the extension plate until the limiting rod is pulled out from the positioning hole. Then the support frame can be rotated to expose the space above the bearing platform. At this time, the steel barrel can be deployed on the support plate. The through hole in the slider can prevent the slider from falling off the support frame. Through the insertion and cooperation of the limiting rod and the positioning hole, a stable positioning can be achieved after the position is adjusted, preventing the helium injection device from shaking or shifting during the detection process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of one side of an intelligent helium leak detection device for steel barrel weld seams proposed in this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the other side of the intelligent helium leak detection device for steel barrel weld seams proposed in this utility model.

[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the helium injection device and positioning platform of the intelligent helium leak detection device for steel barrel weld seams proposed in this utility model.

[0019] Figure 4 This is a schematic diagram showing the disassembled structure of the slider and support frame of the intelligent helium leak detection device for steel barrel weld seams proposed in this utility model.

[0020] Legend: 1. Operating table; 2. Welding device; 3. Positioning table; 4. Helium injection device; 5. Support platform; 6. Servo motor; 7. Support plate; 8. Positioning hole; 41. Support frame; 42. Gas pipe; 43. Gas tank; 44. Cover plate; 45. Extension plate; 46. Slider; 47. Limiting rod; 48. Strip hole; 49. Through hole. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides an intelligent helium leak detection device for steel drum welds, including an operating table 1. A welding device 2 is installed at one end of the upper surface of the operating table 1, and a positioning platform 3 is fixedly installed at the other end of the upper surface of the operating table 1. A helium injection device 4 is movably connected to the top of the positioning platform 3. The helium injection device 4 includes a support frame 41, a gas supply pipe 42, and a gas tank 43. The support frame 41 is rotatably connected to the positioning platform 3. The gas supply pipe 42 is fixedly installed on the top of the support frame 41, and the other end of the gas supply pipe 42 is connected to the gas tank 43. A cover plate 44 is sleeved on the outer wall of the support frame 41. A bearing platform 5 is fixedly installed on the top of the positioning platform 3. A support plate 7 is rotatably installed on the top of the bearing platform 5. A servo motor 6 is fixedly installed at one end of the bearing platform 5. A gear is fixedly installed at the output end of the servo motor 6, and the gear meshes with the support plate 7.

[0024] The specific setup and function of this embodiment are described below. The welding device 2 on the operating table 1 first completes the welding of the steel drum's seam. The steel drum is placed on the support plate 7 of the bearing platform 5 with its opening facing upwards. The servo motor 6 drives the support plate 7 to rotate and adjust the direction of the steel drum through gear meshing. Helium gas is injected into the helium gas injection device 4 on the positioning platform 3. Helium gas from the gas tank 43 is delivered through the gas pipe 42. The cover plate 44 covers the opening of the steel drum, and helium gas is injected into the inside of the steel drum from the gas pipe 42. If there is a leak in the weld, helium gas will escape. By capturing the helium gas, the leak situation can be determined. The leak point can be intelligently determined based on the helium gas flow path, and the gas flow rate can be used to determine... The size of the leak point enables comprehensive intelligent detection of leakage. The servo motor 6, through meshing with gears, drives the support plate 7 to rotate, achieving precise positioning and rotation of the steel drum. This facilitates comprehensive inspection of the weld seams. The support frame 41 in the helium injection device 4 is rotatable without affecting the normal deployment of the steel drum. The cover plate 44 can seal the opening of the steel drum, ensuring that helium can only flow out from the leak point at the weld seam, improving detection accuracy. The welding device 2 and the helium side leakage device are integrated into the operating table 1, realizing integrated welding and inspection, reducing the steel drum handling process, and improving work efficiency. The tight fit of each component structure can effectively detect the sealing of the steel drum weld seams, ensuring the quality of the steel drum.

[0025] Example 2: Figure 3 and Figure 4 As shown, sliders 46 are slidably connected to both sides of the support frame 41. A strip hole 48 is provided at the junction of the support frame 41 and the slider 46. A limit rod 47 is fixedly installed on the lower surface of the slider 46. An extension plate 45 is fixedly installed at the bottom of the support frame 41. A positioning hole 8 is provided at the bottom of the positioning platform 3. The limit rod 47 passes through the extension plate 45 and is inserted into the interior of the positioning hole 8. A through hole 49 is provided inside the slider 46.

[0026] The overall effect of this embodiment is that the sliders 46 on both sides of the support frame 41 can slide along the strip holes 48. When it is necessary to deploy the steel barrel, first pull the sliders 46 upward, causing the limiting rod 47 to move on the extension plate 45 until the limiting rod 47 is pulled out from the positioning hole 8. Then, the support frame 41 can be rotated to expose the space above the bearing platform 5. At this time, the steel barrel can be deployed onto the support plate 7. After the steel barrel is deployed, the support frame 41 is rotated back to the vertical state, and then the limiting rod 47 is inserted into the positioning hole 8 at the bottom of the positioning platform 3 to make the support frame 41 firmly fixed. The through hole 49 in the slider 46 can prevent the slider 46 from falling off the support frame 41. Through the insertion and cooperation of the limiting rod 47 and the positioning hole 8, a stable positioning can be achieved after the position is adjusted, preventing the helium injection device 4 from shaking or shifting during the detection process, ensuring the accuracy and stability of helium injection, thereby improving the accuracy and reliability of the helium side leakage detection of the steel barrel weld and ensuring the validity of the detection results.

[0027] The usage and working principle of this device are as follows: Place the steel drum on the operating table 1 at the welding device 2 to complete the weld. After welding, place the steel drum on the support plate 7 of the bearing platform 5 with the opening facing upwards. Pull the sliders 46 on both sides of the support frame 41 upwards to pull the limit rod 47 out of the positioning hole 8 at the bottom of the positioning table 3. Rotate the support frame 41 to expose the space above the bearing platform 5 to place the steel drum. After the steel drum is deployed, rotate the support frame 41 back to the vertical position, insert the limit rod 47 to fix it, start the servo motor 6, and drive the support plate 7 to rotate through gear meshing to adjust the direction of the steel drum. Helium gas in the gas tank 43 is delivered through the gas pipe 42. The cover plate 44 covers the opening of the steel drum and injects helium gas into the inside of the steel drum. If there is a leak in the weld, helium gas will escape. By capturing the helium gas, the leakage situation can be judged, and the intelligent helium side leak detection of the steel drum weld can be completed.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A smart helium leak detection device for steel drum welds, comprising an operating table (1), characterized in that: A welding device (2) is installed at one end of the upper surface of the operating table (1), and a positioning table (3) is fixedly installed at the other end of the upper surface of the operating table (1). A helium injection device (4) is movably connected to the top of the positioning table (3). The helium injection device (4) includes a support frame (41), a gas pipe (42) and a gas tank (43). The support frame (41) is rotatably connected to the positioning table (3). The gas pipe (42) is fixedly installed on the top of the support frame (41). The other end of the gas pipe (42) is connected to the gas tank (43). A cover plate (44) is fitted on the outer wall of the support frame (41).

2. The intelligent helium leak detection device for steel drum weld according to claim 1, characterized in that: The top of the positioning platform (3) is fixedly installed with a bearing platform (5), and the top of the bearing platform (5) is rotatably installed with a support plate (7).

3. The intelligent helium leak detection device for steel drum welds of claim 1, wherein: A servo motor (6) is fixedly installed at one end of the support platform (5), and a gear is fixedly installed at the output end of the servo motor (6), and the gear meshes with the support plate (7).

4. The intelligent helium leak detection device for steel drum welds of claim 1, wherein: Both sides of the support frame (41) are slidably connected to sliders (46), and a strip hole (48) is provided at the junction of the support frame (41) and the sliders (46).

5. The intelligent helium leak detection device for steel drum welds of claim 1, wherein: A limit rod (47) is fixedly installed on the lower surface of the slider (46), and an extension plate (45) is fixedly installed on the bottom of the support frame (41).

6. The intelligent helium leak detection device for steel drum welds of claim 1, wherein: The bottom of the positioning platform (3) is provided with a positioning hole (8), and the limiting rod (47) passes through the extension plate (45) and is inserted into the inside of the positioning hole (8).

7. The intelligent helium leak detection device for steel drum welds of claim 1, wherein: The slider (46) has a through hole (49) inside.

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