A rotary tube airtightness testing device

Abstract

This utility model discloses a gas tightness testing device for a gyrotube assembly, comprising a helium detection connector, a clamping mechanism for holding the helium detection connector and engaging it with a helium detection port on the gyrotube assembly, and a welding mechanism for welding and blowing helium at the welded parts on the gyrotube assembly. The helium detection connector is placed on a bracket on one side of the gyrotube assembly equipment and is connected to an external helium detection device. This solution allows for immediate gas tightness testing at the same workstation after the gyrotube assembly is completed, without disassembly. The clamping mechanism delivers the helium detection connector to the helium detection port on the gyrotube assembly, and the welding robotic arm drives the blowing pipe to move to the welding point on the gyrotube assembly and blows out helium. The helium detection device detects any helium leakage, thus determining the sealing performance of the gyrotube assembly. This solution achieves fully automated testing, eliminating the time bottleneck and logistics constraints of manual operation, and significantly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rotary tube airtightness testing technology, specifically to a rotary tube overall airtightness testing device. Background Technology

[0002] As a high-power microwave device, the gyrotron must maintain a high vacuum state inside to ensure normal operation. After the entire gyrotron is welded, the airtightness of the weld seam is a key indicator that determines whether the vacuum inside the tube can be maintained. Therefore, airtightness testing is an essential and highly demanding testing step in the production process.

[0003] Currently, the entire gyrotube is typically transported manually to a separate airtightness testing workstation for airtightness testing. This method has significant drawbacks: First, manual handling and clamping are inefficient, becoming a bottleneck in production cycle; second, the separate testing station requires additional space and logistics, increasing production complexity and management costs.

[0004] As the production of rotary tubes moves towards automation and intelligence, there is an urgent need to optimize and improve the airtightness testing process in order to increase production efficiency. Utility Model Content

[0005] To address the aforementioned shortcomings of the existing technology, this utility model provides a rotary tube airtightness testing device, which is integrated into an automated production line to achieve rapid, accurate, and automatic docking and testing, thereby solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A device for testing the air tightness of a gyrotube assembly is provided, comprising a helium detection connector, a clamping mechanism for holding the helium detection connector and engaging with the helium detection port on the gyrotube assembly, and a welding mechanism for welding and blowing gas onto the welded parts on the gyrotube assembly. The helium detection connector is placed on a bracket on one side of the gyrotube component assembly equipment, and the helium detection connector is connected to an external helium detection device.

[0008] Furthermore, the bracket is equipped with a mounting plate, on which two vertical plates are arranged side by side. Each of the two vertical plates has a horizontal slot on one side, in which the helium detection connector is secured. Above the two vertical plates, a telescopic rotary cylinder is fixed to the mounting plate. The telescopic end of the telescopic rotary cylinder is equipped with a pressure block for pressing the helium detection connector tightly into the horizontal slot.

[0009] Furthermore, the helium detection connector is connected to an external helium detection device via a metal flexible tube.

[0010] Furthermore, the bottom of the horizontal slot is arc-shaped.

[0011] Furthermore, the welding mechanism has a welding robotic arm, which is equipped with a mounting block and a welding torch. The welding torch includes an air blowing pipe and a welding needle located at the front end of the air blowing pipe.

[0012] Furthermore, the blowing pipe is connected to the argon supply equipment and the helium supply equipment respectively through the gas path.

[0013] Furthermore, the clamping mechanism includes a clamping robotic arm and servo grippers mounted on the clamping robotic arm.

[0014] Furthermore, the servo gripper includes two V-shaped clamps for centering and holding the helium detector connector.

[0015] Furthermore, the rotary tube airtightness testing device is integrated into the rotary tube automated assembly and welding production line, and the rotary tube is clamped and positioned by the rotary tube component assembly equipment on the production line.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. After the gyrotube is welded, the gas tightness test can be performed immediately at the same station without removing the gyrotube. The helium detection connector is sent to the helium detection port on the gyrotube by the clamping mechanism. The welding robot arm drives the blowing pipe to move to the welding point on the gyrotube and blows out helium. The helium detection equipment is used to detect whether there is a helium leak, thereby determining the sealing performance of the gyrotube.

[0018] 2. This solution, through the cooperation of clamping and welding mechanisms, completely replaces the manual handling of helium testing connectors, enabling fully automated testing. At the same time, the testing process is seamlessly integrated into the automated production cycle of the rotary tube assembly, eliminating the time bottleneck and logistics turnover of manual operation, and significantly improving production efficiency.

[0019] 3. This solution uses the welding mechanism for welding as a mobile gas source. When welding the entire gyroscope tube with a welding needle, argon gas can be blown out through the air blowing pipe as a welding shielding gas to prevent weld oxidation. During airtightness testing, helium gas can be blown out to the welding point through the air blowing pipe, thus achieving multiple uses with one machine, simplifying the system structure and reducing equipment manufacturing costs.

[0020] 4. The clamping mechanism of this solution has extremely high repeatability, which ensures that the helium detector connector is precisely and coaxially aligned with the helium detector port each time, thereby guaranteeing the accuracy and consistency of the alignment and avoiding problems such as eccentricity, oblique insertion, or uneven tightening torque that may occur during manual operation. This ensures that the sealing surface connection quality is consistent for each test, greatly reduces false alarms caused by poor alignment, and improves the reliability of the test results. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of the present invention will become clearer through the drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the main idea of ​​the present utility model.

[0022] Figure 1 This is a schematic diagram of the structure of a rotary tube airtightness testing device.

[0023] Figure 2 This is a schematic diagram of the helium detector connector.

[0024] Figure 3 This is a schematic diagram of the clamping mechanism.

[0025] Figure 4 This is a schematic diagram of the welding mechanism.

[0026] Figure 5 This is a schematic diagram of the welding torch.

[0027] Among them, 1. Helium detector connector, 2. Clamping mechanism, 21. Clamping robotic arm, 22. Servo gripper, 23. V-shaped clamping block, 3. Welding mechanism, 31. Welding robotic arm, 32. Mounting block, 33. Air blowing pipe, 34. Welding needle, 4. Bracket, 5. Mounting plate, 6. Vertical plate, 7. Horizontal slot, 8. Telescopic rotary cylinder, 9. Pressure block, 10. Helium detector port, 11. Gyroscope component, 12. Gyroscope component assembly equipment. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] like Figure 1 As shown, the gyrotube airtightness testing device of this solution includes a helium detection connector 1, a clamping mechanism 2 for clamping the helium detection connector 1 and docking with the helium detection port 10 on the gyrotube, and a welding mechanism 3 for welding and blowing gas on the welding parts on the gyrotube. The helium detection connector 1 is placed on a bracket 4 on one side of the gyrotube component assembly equipment 12.

[0033] As an optional implementation method, such as Figure 2 As shown, a mounting plate 5 is provided on the bracket 4, and two vertical plates 6 are arranged side by side on the mounting plate 5. A horizontal slot 7 is opened on one side of each of the two vertical plates 6. The helium detection connector 1 is locked in the horizontal slot 7. A telescopic rotary cylinder 8 is fixed on the mounting plate 5 above the two vertical plates 6. The telescopic end of the telescopic rotary cylinder 8 is provided with a pressure block 9 for pressing the helium detection connector 1 tightly into the horizontal slot 7. The helium detection connector 1 is connected to an external helium detection device through a metal hose to facilitate the movement of the helium detection connector 1. The bottom of the horizontal slot 7 is arc-shaped to facilitate the stable locking of the helium detection connector 1.

[0034] As an optional implementation method, such as Figure 3 As shown, the clamping mechanism 2 includes a clamping robotic arm 21 and a servo gripper 22 mounted on the clamping robotic arm 21. The servo gripper 22 includes two V-shaped clamping blocks 23 for centering and clamping the helium detection connector 1. The clamping mechanism 2 of this solution has extremely high repeatability, ensuring that the helium detection connector 1 is precisely and coaxially aligned with the helium detection port 10 each time, thereby guaranteeing alignment accuracy and consistency and avoiding problems such as eccentricity, oblique insertion, or uneven tightening torque that may occur during manual operation. This ensures consistent sealing surface connection quality for each test, greatly reduces false alarms caused by poor alignment, and improves the reliability of the test results.

[0035] As an optional implementation method, such as Figure 4 and Figure 5 As shown, the welding mechanism 3 has a welding robotic arm 31. The welding robotic arm 31 is equipped with a mounting block 32, and the mounting block 32 is equipped with a welding torch. The welding torch includes an air blowing pipe 33 and a welding needle 34 located at the front end of the air blowing pipe 33. The air blowing pipe 33 is connected to an argon gas supply device and a helium gas supply device through a gas path.

[0036] The airtightness testing device for the gyro tube in this solution is integrated into the automated assembly and welding production line for the gyro tube. The gyro tube component 11 is clamped and positioned by the gyro tube component assembly equipment 12 on the production line. Then, the gyro tube can be welded through the welding needle 34, and argon gas can be blown out through the air blowing pipe 33 as a welding shielding gas to prevent the weld from oxidizing.

[0037] After the gyrotube is welded, the airtightness test can be performed immediately at the same workstation without disassembling the entire gyrotube. The helium detection connector 1 is delivered to the helium detection port 10 on the gyrotube via the clamping mechanism 2. The welding robotic arm 31 drives the blowing pipe 33 to move to the welding point on the gyrotube and blows out helium. The helium detection equipment detects whether there is a helium leak, thereby determining the airtightness of the gyrotube. This solution completely replaces the manual handling of the helium detection connector 1 for picking up, placing, connecting, and disassembling, achieving fully automated testing. At the same time, the testing process is seamlessly integrated into the automated production cycle of the gyrotube, eliminating the time bottleneck and logistics turnover of manual operation, and significantly improving production efficiency.

[0038] The helium leak detection process of this solution is as follows: Clamping mechanism 2 clamps helium test connector 1 — telescopic rotary cylinder 8 releases — clamping mechanism 2 sends helium test connector 1 to helium test port 10 for docking — helium test equipment operates — blowing pipe 33 moves to the welding point and blows out helium — helium test equipment checks for helium leaks — after the helium test equipment completes the test — welding mechanism 3 returns to the waiting position — clamping mechanism 2 sends helium test connector 1 back — telescopic rotary cylinder 8 clamps helium test connector 1 — clamping mechanism 2 returns to the waiting position — helium leak detection process is completed.

[0039] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, they should not be construed as limiting the scope of protection of this patent; various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims are still within the scope of protection of this patent.

Claims

1. A device for detecting the airtightness of a gyrotron tube assembly, characterized in that It includes a helium detection connector, a clamping mechanism for holding the helium detection connector and connecting it to the helium detection port on the gyrotube, and a welding mechanism for welding and blowing gas on the welding parts on the gyrotube. The helium detection connector is placed on a bracket on one side of the gyrotube component assembly equipment, and the helium detection connector is connected to an external helium detection device.

2. The gyrotron integrated tube air tightness detection device according to claim 1, characterized in that, The bracket is provided with a mounting plate, on which two vertical plates are arranged side by side. Each of the two vertical plates has a horizontal slot on one side. The helium detection connector is locked in the horizontal slot. Above the two vertical plates, a telescopic rotary cylinder is fixed to the mounting plate. The telescopic end of the telescopic rotary cylinder is provided with a pressure block for pressing the helium detection connector tightly into the horizontal slot.

3. The gyrotron integrated tube air tightness detection device according to claim 2, characterized in that, The helium detection connector is connected to an external helium detection device via a metal flexible tube.

4. The gyrotron integrated tube air tightness detection device according to claim 2, characterized in that, The bottom of the horizontal slot is arc-shaped.

5. The gyrotron integrated tube hermeticity testing apparatus of claim 1, wherein, The welding mechanism is a welding robotic arm, which is equipped with a mounting block and a welding torch. The welding torch includes an air blowing pipe and a welding needle located at the front end of the air blowing pipe.

6. The gyrotron integrated tube air tightness detection device according to claim 5, characterized in that, The blowing pipe is connected to the argon supply equipment and the helium supply equipment respectively through the gas path.

7. The rotary tube airtightness testing device according to claim 1, characterized in that, The clamping mechanism includes a clamping robotic arm and servo grippers mounted on the clamping robotic arm.

8. The gyrotron integrated tube air tightness detection device according to claim 7, characterized in that, The servo gripper includes two V-shaped clamping blocks for centering and holding the helium detector connector.

9. The device for detecting the gas tightness of a gyrotron tube according to any one of claims 1 to 8, characterized in that, The rotary tube airtightness testing device is integrated into the rotary tube automated assembly and welding production line, and the rotary tube is clamped and positioned by the rotary tube component assembly equipment on the production line.

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