Gas cylinder assembly welding detection piece

Abstract

A gas cylinder assembly welding detection piece comprises a debugging simulation mandrel, a welding detection sample piece I and a welding detection sample piece II which are sequentially connected, and the debugging simulation mandrel is further connected with a positioning mandrel of a gas cylinder assembly clamping device. And the position of a connecting seam between the welding detection sample piece I and the welding detection sample piece II is consistent with that of a welding seam at the joint of an inflation plug and a gas cylinder of an original gas cylinder assembly. The gas cylinder component welding seam detection device can replace a gas cylinder component, is used for welding seam cutting detection of the gas cylinder component, is consistent in welding effect and effective in detection result, can complete qualification measurement of a welding seam without cutting the gas cylinder component, avoids unnecessary economic losses such as gas cylinder scrapping caused by cutting damage of the gas cylinder component due to welding seam detection, and improves the detection efficiency. And meanwhile, personnel injury accidents caused by high-pressure gas leakage are also avoided.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder testing technology, and in particular to a gas cylinder assembly welding testing component. Background Technology

[0002] Ground-based gas cylinders are lightweight stainless steel high-pressure gas storage cylinders, serving as a long-term energy reserve. After high-pressure filling of the cylinder assembly, the filling weight must be tested to ensure it falls within the range of 205±10g, and a weight retest must be conducted after seven days. If the weight change of the gas inside the cylinder assembly does not exceed 0.02g, the cylinder assembly is considered to have passed the filling test. To ensure that the cylinder assembly does not leak under conditions such as low temperature, high temperature, low pressure, humidity, vibration, repeated impacts, transportation, and drops, and that its performance remains unchanged after 10 years of storage, welding is required at the filling plug and cylinder interface to meet these requirements and ensure that the cylinder assembly's performance conforms to the product's intended use.

[0003] Because the welding process for gas cylinder components requires welds with a width of 0.5–1.2 mm and a penetration depth of 0.7–1 mm, and because each gas cylinder component can only be mounted onto the fixture for the next laser welding step after the welding is confirmed to be completely qualified, it is necessary to inspect the welds of the gas cylinder components. Currently, the inspection method typically involves cutting the weld between the gas cylinder component and the filling plug during the first sample inspection of the weld in the welding process, and then measuring the weld width and penetration depth on the cut surface to determine if the weld is qualified. However, this inspection method has the following shortcomings:

[0004] 1. Directly cutting the gas cylinder assembly during inspection will damage the assembly and cause economic losses such as the scrapping of the gas cylinder;

[0005] 2. Cutting gas cylinder components can easily cause leakage of high-pressure gas inside the cylinder, leading to personal injury accidents and posing a significant safety hazard. Summary of the Invention

[0006] The purpose of this invention is to provide a gas cylinder assembly welding inspection component that is easy to install and whose size, position, and welding parameters can be easily adjusted, in order to avoid the scrapping of gas cylinder components due to weld inspection and the occurrence of accidents caused by high-pressure gas leakage. This component can replace the gas cylinder assembly for weld inspection and overcome the shortcomings of the existing technology.

[0007] The technical solution adopted by this utility model is: a welding inspection component for a gas cylinder assembly, including a debugging simulation mandrel, a welding inspection sample I, and a welding inspection sample II. One end of the debugging simulation mandrel is connected to the positioning mandrel of the gas cylinder assembly clamping device, and the other end is connected to the welding inspection sample I. The other end of the welding inspection sample I is connected to the welding inspection sample II. The connection seam between the welding inspection sample I and the welding inspection sample II is consistent with the weld seam at the interface between the inflation plug and the gas cylinder of the original gas cylinder assembly.

[0008] A further technical solution is that the debugging simulation mandrel is cylindrical, with one end concave to form a cylindrical groove and the other end protruding to form a cylindrical protrusion, and the cylindrical groove is threadedly connected to the positioning mandrel.

[0009] A further technical solution is that the welding test sample I is sleeve-shaped and fits over the cylindrical protrusion of the debugging simulation mandrel. The overall length of the debugging simulation mandrel after it is fitted with the welding test sample I is equal to that of the gas cylinder assembly.

[0010] Furthermore: the welding test specimen II is cylindrical, with a micro-step protruding from one end to form a connecting seam, and a cylindrical step protruding from the micro-step. The welding test specimen I is fitted over the cylindrical step.

[0011] Furthermore, the other end of the welding test sample II protrudes to form a frustum-shaped protrusion.

[0012] Due to the adoption of the above technical solution, the gas cylinder assembly welding inspection piece of this utility model has the following beneficial effects:

[0013] 1. This utility model can replace gas cylinder components and be used for weld seam cutting and inspection of gas cylinder components. It can complete the qualification measurement of weld seams without cutting the gas cylinder components, avoiding unnecessary economic losses such as gas cylinder scrapping caused by cutting and damaging the gas cylinder components during weld seam inspection. It also avoids personnel injury accidents caused by high-pressure gas leakage, and has high safety performance.

[0014] 2. Because this utility model uses a combination of a debugging simulation mandrel and welding test sample I to replace the gas cylinder assembly, uses welding test sample II to replace the inflation plug, and uses the connection seam formed by the structural cooperation of welding test sample I and welding test sample II to replace the welding seam between the gas cylinder interface and the inflation plug of the original gas cylinder assembly, the welding effect of the test sample of this utility model is equivalent to the welding effect of the gas cylinder assembly, so that the weld width and penetration parameters are also consistent. The detection effect of the weld seam of the test sample of this utility model is equivalent to the detection effect of the weld seam of the gas cylinder assembly, and the detection result is reliable and effective.

[0015] 3. This utility model has a simple structure and is easy to install. It can be quickly connected to the welding mandrel and welding fixture of the gas cylinder assembly. It can also be used to adjust the size and position of laser welding, welding parameters and weld inspection. After welding inspection, the gas cylinder assembly can be directly removed and reinstalled. It is convenient to use, low in cost and will not cause economic loss.

[0016] The technical features of the gas cylinder assembly welding inspection piece of this utility model will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure of the welding inspection piece for the gas cylinder assembly of this utility model;

[0018] Figure 2 This is a schematic diagram of the debugging simulation mandrel structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the welding inspection sample I of this utility model;

[0020] Figure 4 This is a schematic diagram of the welding inspection sample II of this utility model.

[0021] In the picture:

[0022] 1—Debugging simulation mandrel, 11—Cylindrical groove, 12—Cylindrical protrusion, 2—Welding test sample I, 3—Welding test sample II, 31—Micro step, 32—Cylindrical step, 33—Frustum protrusion, 4—Connecting seam, 5—Rotating chuck, 6—Positioning mandrel. Detailed Implementation

[0023] Example

[0024] A welding inspection component for gas cylinder components, such as Figure 1 As shown, it includes a debugging simulation mandrel 1, a welding test sample I2, and a welding test sample II3. One end of the debugging simulation mandrel 1 is connected to the extended end of the positioning mandrel 6 in the rotating chuck 5 of the gas cylinder assembly clamping device, and the other end is connected to the welding test sample I2. The other end of the welding test sample I2 is connected to the welding test sample II3. The connecting seam 4 between the welding test sample I2 and the welding test sample II3 is consistent with the position of the weld seam at the interface between the inflation plug and the gas cylinder of the original gas cylinder assembly.

[0025] The debugging simulation mandrel 1 is cylindrical, with one end recessed to form a cylindrical groove 11 (i.e., an internal thread is machined at one end of the debugging simulation mandrel 1), and the other end protruding to form a cylindrical protrusion 12. The cylindrical groove 11 (internal thread) is threadedly connected to the positioning mandrel 6 (external thread).

[0026] The welding test sample I2 is sleeve-shaped and fits over the cylindrical protrusion 12 of the debugging simulation mandrel 1. The overall length of the debugging simulation mandrel 1 and the welding test sample I2 is equal to that of the gas cylinder assembly.

[0027] The welding test sample II3 is cylindrical, with a micro-step 31 protruding from one end. A cylindrical step 32 protrudes from the micro-step 31. The welding test sample I2 is fitted over the cylindrical step 32. The diameter of the micro-step 31 is larger than that of the welding test sample I2, so that a small connecting seam 4 is formed between the welding test sample I2 and the welding test sample II3.

[0028] The other end of the welding test sample II3 protrudes to form a frustum protrusion 33.

[0029] Installation and testing process:

[0030] (1) Install test pieces:

[0031] Screw the debugging simulation mandrel 1 into the extended end of the positioning mandrel 6 inside the rotary chuck 5. Insert the welding test sample I2 into the head of the debugging simulation mandrel 1, that is, put the welding test sample I2 on the outside of the cylindrical protrusion 12. Then insert the cylindrical step 32 of the welding test sample II3 into the welding test sample I2. Finally, use the tailstock on the laser welding machine to hold the welding test sample II3 in place.

[0032] (2) Adjust welding parameters:

[0033] according to Figure 1 The gap between the welding test specimen I2 and the welding test specimen II3 was adjusted to check the weld points and parameters.

[0034] (3) Welding and inspection:

[0035] After the position parameters are adjusted, the welding program is started to weld the connection seam 4 between welding test sample I2 and welding test sample II3. Then, the welded connection seam 4 between welding test sample I2 and welding test sample II3 is cut to inspect the weld and penetration depth, and the test results are obtained.

[0036] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A welding inspection component for gas cylinder components, characterized in that: The test components include a debugging simulation mandrel (1), a welding test sample I (2), and a welding test sample II (3). One end of the debugging simulation mandrel (1) is connected to the positioning mandrel (6) of the gas cylinder assembly clamping device, and the other end is connected to the welding test sample I (2). The other end of the welding test sample I (2) is connected to the welding test sample II (3). The connection seam (4) between the welding test sample I (2) and the welding test sample II (3) is consistent with the weld seam at the interface between the gas cylinder and the gas cylinder of the original gas cylinder assembly.

2. The gas cylinder assembly welding inspection piece according to claim 1, characterized in that: The debugging simulation mandrel (1) is cylindrical, with one end recessed to form a cylindrical groove (11) and the other end protruding to form a cylindrical protrusion (12). The cylindrical groove (11) is threadedly connected to the positioning mandrel (6).

3. The gas cylinder assembly welding inspection piece according to claim 2, characterized in that: The welding test sample I (2) is sleeve-shaped and is fitted over the cylindrical protrusion (12) of the debugging simulation mandrel (1). The overall length of the debugging simulation mandrel (1) and the welding test sample I (2) is equal to that of the gas cylinder assembly.

4. The gas cylinder assembly welding inspection piece according to claim 3, characterized in that: The welding test specimen II (3) is cylindrical, with a micro step (31) protruding from one end to form a connecting seam (4). A cylindrical step (32) protrudes from the micro step (31), and the welding test specimen I (2) is fitted over the cylindrical step (32).

5. The gas cylinder assembly welding inspection piece according to claim 4, characterized in that: The other end of the welding test sample II (3) protrudes to form a frustum protrusion (33).

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