Air tightness detection device for metal wave tube production

Abstract

The utility model discloses an air tightness detection device for metal wave tube production, which relates to the technical field of air tightness detection devices and comprises an L-shaped base, a detection water sump is fixedly connected to the top of the L-shaped base, a separation filter screen is fixedly connected to the bottom in a cavity of the detection water sump, and a water pump is fixedly connected to the interior of the bottom cavity of the detection water sump. The side wall of the detection water sump is fixedly connected with a U-shaped pipe, and one end of the water pump penetrates through the side wall of the detection water sump. According to the L-shaped base provided by the utility model, the metal wave tube is dried after detection on the basis of marking a leaked tube section during automatic detection of the metal wave tube, so that the problem that the existing air tightness detection device for metal wave tube production cannot automatically clean residual water after detection is solved; and a leaked pipe section cannot be automatically marked during detection, so that the pipe section is inconvenient to return to a factory for maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of airtightness testing devices, specifically to an airtightness testing device for the production of metal wave tubes. Background Technology

[0002] After metal tubes are extruded, minor leaks inevitably occur due to the manufacturing process and impacts, resulting in substandard quality. The traditional method for testing the sealing performance of metal tubes is to visually inspect for bubbles by immersing them in water or oil. The airtightness of the tube is tested under pressure, and whether bubbles emerge from the water is used to determine if there are any leaks in the metal tube.

[0003] Existing airtightness testing devices for metal wave tube production require immersing the metal wave tube in water for testing. This leaves water residue on the surface and inside the tube, which cannot be automatically cleaned. Furthermore, the devices can only detect leaks but cannot automatically mark leaking sections, making return for repair inconvenient. Therefore, it is necessary to solve the problems of existing airtightness testing devices for metal wave tube production that fail to automatically clean residual water after testing and fail to automatically mark leaking sections during testing, thus hindering return for repair. Utility Model Content

[0004] In view of the problems existing in the current airtightness testing device for metal wave tube production, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an airtightness testing device for metal wave tube production, which solves the problems that existing airtightness testing devices for metal wave tube production cannot automatically clean residual moisture after testing, and cannot automatically mark leaking pipe sections during testing, making it inconvenient to return them to the factory for repair.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An airtightness testing device for metal waveguide production includes: an L-shaped base; a test water chamber fixedly connected to the top of the L-shaped base; a separation filter fixedly connected to the bottom of the test water chamber; a water pump fixedly connected to the bottom cavity of the test water chamber; a U-shaped tube fixedly connected to the side wall of the test water chamber; one end of the water pump fixedly connected to one end of the U-shaped tube; a water supply plate fixedly connected to the other end of the water pump; and a plurality of first mounting pipe heads fixedly connected to the inner side wall of one end of the test water chamber, one end of each first mounting pipe head passing through the side wall of the test water chamber and fixedly connected to the side wall of the water supply plate. The test water tank is fixedly connected to a drying chamber via a transmission mechanism. Multiple second mounting pipe heads are fixedly connected to the side wall of the drying chamber. A support plate is fixedly connected to one end of the L-shaped base via a drive mechanism. Multiple electric valves are fixedly connected to the top of the support plate. Multiple U-shaped detection marking devices are fixedly connected to the bottom of the support plate. One end of each U-shaped detection marking device passes through the side wall of the support plate and is fixedly connected to the output end of an electric valve. A power supply mechanism is provided on the side wall of the L-shaped base, and a control terminal is fixedly connected to the side wall of the test water tank.

[0008] Preferably, the transmission mechanism includes a first cylinder, a first sliding port, and a first support block. The first cylinder is fixedly connected to the side wall cavity of the detection water tank. A first sliding port is opened on one side wall of the detection water tank and a first support block is slidably connected thereto. One end of the first support block is fixedly connected to one end of the first cylinder, and a drying chamber is fixedly connected to the other end of the first support block.

[0009] Preferably, the driving mechanism includes a second cylinder, a second sliding port, and a second support block. The second cylinder is fixedly connected to one end cavity of the L-shaped base. The top of one end of the L-shaped base is provided with a second sliding port and is slidably connected to the second support block. One side wall of the second support block is fixedly connected to one end of the second cylinder, and the other end of the second support block is fixedly connected to the side wall of the support plate.

[0010] Preferably, the power supply mechanism includes a hot air blower, a polyurethane foaming agent, an airflow pipe, and a liquid pipe. The hot air blower and the polyurethane foaming agent are fixedly connected to both ends of the side wall of the L-shaped base, respectively. The output end of the hot air blower is fixedly connected to the airflow pipe, and the other end of the airflow pipe is fixedly connected to the input end of the drying chamber. The output end of the polyurethane foaming agent is threadedly connected to multiple liquid pipes, and the other end of each liquid pipe is fixedly connected to the input end of the corresponding electric valve.

[0011] Furthermore, each of the U-shaped detection marking devices is a U-shaped plate, and a marking nozzle is fixedly connected to its inner sidewall. Infrared detection devices are fixedly connected to the inner sidewalls of both ends of the U-shaped detection marking device.

[0012] Preferably, the bottom of the L-shaped base is fixedly connected with multiple casters.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model utilizes multiple first mounting pipe heads and multiple second mounting pipe heads installed in the detection water tank to simultaneously perform detection by installing multiple metal wave tubes. By threading the threaded connection ends of both ends of the metal wave tubes to the first and second mounting pipe heads respectively, and using infrared detection devices installed on the inner sidewalls of both ends of the U-shaped detection marking device, the temperature distribution is analyzed by detecting the thermal radiation of the object surface. When there is a leak in the metal wave tube, the liquid flow at the leak point will cause a local temperature change. This temperature change can be captured by an infrared detection device (such as an infrared thermal imager), thereby determining the leak point.

[0015] 2. This utility model utilizes multiple liquid pipes installed at the output end of the polyurethane foaming agent to provide marking materials to the U-shaped detection and marking device through corresponding electric valves. After the polyurethane foaming agent is sprayed out, it adheres to the pipe section of the metal wave tube and rapidly expands and solidifies upon contact with air to perform marking.

[0016] 3. This utility model utilizes an airflow pipe installed at one end of a hot air blower to provide hot air to the drying chamber. The hot air flows through multiple second installation pipes into the metal wave tube cavity and is quickly dried by the high-temperature hot air. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a front structural diagram of the present invention;

[0019] Figure 2 This is a front structural cross-sectional view of the present invention;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. L-shaped base; 2. Detection water tank; 3. Separation filter; 4. Water pump; 5. U-shaped pipe; 6. Water supply plate; 7. First mounting pipe head; 8. Drying chamber; 9. Second mounting pipe head; 10. Support plate; 11. Electric valve; 12. U-shaped detection marking device; 13. Control end; 14. First cylinder; 15. First sliding port; 16. First support block; 17. Second cylinder; 18. Second sliding port; 19. Second support block; 20. Hot air blower; 21. Polyurethane foaming agent; 22. Airflow pipe; 23. Liquid pipe; 24. Marking nozzle; 25. Infrared detection device; 26. Casters. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses an airtightness testing device for the production of metal wave tubes.

[0026] This utility model provides, for example Figure 1-4The device shown is an airtightness testing device for metal wave tube production, comprising: an L-shaped base 1, a test water tank 2 fixedly connected to the top of the L-shaped base 1, a separation filter 3 fixedly connected to the bottom of the test water tank 2, a water pump 4 fixedly connected to the bottom cavity of the test water tank 2, a U-shaped tube 5 fixedly connected to the side wall of the test water tank 2, one end of the water pump 4 fixedly connected to one end of the U-shaped tube 5, and a water supply plate 6 fixedly connected to the other end of the water pump 4. Multiple first mounting pipe heads 7 are fixedly connected to the inner side wall of one end of the test water tank 2, one end of each first mounting pipe head 7 passing through the side wall of the test water tank 2 and fixedly connected to the side wall of the water supply plate 6. The test water tank 2 has a cavity inside the side wall cavity. A drying chamber 8 is fixedly connected via a transmission mechanism. Multiple second mounting pipe heads 9 are fixedly connected to the side wall of the drying chamber 8. A support plate 10 is fixedly connected to one end of an L-shaped base 1 via a drive mechanism. Multiple electric valves 11 are fixedly connected to the top of the support plate 10, and multiple U-shaped detection marking devices 12 are fixedly connected to the bottom of the support plate 10. One end of each U-shaped detection marking device 12 passes through the side wall of the support plate 10 and is fixedly connected to the output end of the electric valve 11. A power supply mechanism is provided on the side wall of the L-shaped base 1, and a control terminal 13 is fixedly connected to the side wall of the detection water tank 2. The system utilizes multiple first mounting pipe heads 7 and multiple second mounting pipe heads 9. This allows for simultaneous detection by installing multiple metal wave tubes. The threaded ends of the metal wave tubes are connected to the first mounting head 7 and the second mounting head 9, respectively. A water pump 4 pumps water from the bottom cavity of the detection water tank 2 through a U-shaped pipe 5 to the cavity of the water supply plate 6. The water supply plate 6 then supplies water to the multiple second mounting heads 9, filling the cavity of the metal wave tubes. A transmission mechanism drives multiple U-shaped detection marking devices 12 to detect leaks in the metal wave tubes during movement. When a leak is detected, the control terminal 13 automatically opens the electric valve 11, and the power supply mechanism provides marking power to the U-shaped detection marking devices 12. The raw materials are marked with leaking pipe sections to facilitate identification of leaks during return-to-factory repairs. A power supply mechanism simultaneously provides hot air to the drying chamber 8. This hot air flows through multiple second mounting pipe heads 9 into the metal wave tube cavity for rapid drying at high temperatures. A drive mechanism moves these second mounting pipe heads 9 to accommodate metal wave tubes of varying lengths. Straightening the metal wave tube facilitates testing, thus solving the problems of existing metal wave tube production airtightness testing devices that cannot automatically clean residual moisture after testing and cannot automatically mark leaking pipe sections during testing, hindering return-to-factory repairs.

[0027] In order to move multiple second mounting pipe heads 9, such as Figure 2 and 3As shown, the transmission mechanism includes a first cylinder 14, a first sliding port 15, and a first support block 16. The first cylinder 14 is fixedly connected to the side wall cavity of the detection water tank 2. The first sliding port 15 is opened on one side wall of the detection water tank 2 and the first support block 16 is slidably connected thereto. One end of the first support block 16 is fixedly connected to one end of the first cylinder 14, and the other end of the first support block 16 is fixedly connected to the drying chamber 8. By using the first cylinder 14, the first support block 16 in the first sliding port 15 is moved, thereby driving the drying chamber 8 at one end of the first support block 16 to move, so that multiple second mounting tube heads 9 follow and move.

[0028] To move multiple U-shaped detection markers to detect the metal waveguide, such as... Figure 1-4 As shown, the driving mechanism includes a second cylinder 17, a second sliding port 18, and a second support block 19. The second cylinder 17 is fixedly connected to one end cavity of the L-shaped base 1. The second sliding port 18 is opened at the top of one end of the L-shaped base 1 and is slidably connected to the second support block 19. One side wall of the second support block 19 is fixedly connected to one end of the second cylinder 17, and the other end of the second support block 19 is fixedly connected to the side wall of the support plate 10. By using the second cylinder 17, the second support block 19 in the second sliding port 18 is pushed to move, causing the support plate 10 at the other end of the second support block 19 to move accordingly, thereby driving multiple U-shaped detection marking devices 12 to move and detect the metal wave tube.

[0029] In order to supply power to the U-shaped detection marking device 12 and the drying chamber 8, such as Figure 1-3 The power supply mechanism includes a hot air blower 20, a polyurethane foaming agent 21, an airflow pipe 22, and a liquid pipe 23. The hot air blower 20 and the polyurethane foaming agent 21 are fixedly connected to both ends of the side wall of the L-shaped base 1, respectively. The output end of the hot air blower 20 is fixedly connected to the airflow pipe 22, and the other end of the airflow pipe 22 is fixedly connected to the input end of the drying chamber 8. The output end of the polyurethane foaming agent 21 is threadedly connected to multiple liquid pipes 23, and the other end of each liquid pipe 23 is fixedly connected to the input end of the corresponding electric valve 11. Hot air is supplied to the drying chamber 8 through the airflow pipe 22 at one end of the hot air blower 20. The marking material is supplied to the U-shaped detection and marking device 12 through the corresponding electric valve 11 through the multiple liquid pipes 23 at the output end of the polyurethane foaming agent 21. After being sprayed out, the polyurethane foaming agent 21 adheres to the pipe section of the metal wave tube and rapidly expands and solidifies upon contact with air to perform marking.

[0030] In order for the U-shaped detection and marking device 12 to perform detection and marking functions, such as Figure 2-4As shown, each U-shaped detection marking device 12 is a U-shaped plate, and a marking nozzle 24 is fixedly connected to the inner wall. Infrared detection devices 25 are fixedly connected to the inner walls at both ends of the U-shaped detection marking device 12. The infrared detection devices 25 set on the inner walls at both ends of the U-shaped detection marking device 12 are used to analyze the temperature distribution by detecting the thermal radiation on the surface of the object. When there is a leak in the metal wave tube, the liquid flow at the leak point will cause a local temperature change. This temperature change can be captured by the infrared detection device 25 (such as an infrared thermal imager) to determine the leak point. When the infrared detection device 25 is sensed, it receives the signal through the control terminal 13 and controls the marking nozzle 24 to spray polyurethane foam to mark the pipe section at the leak point.

[0031] To facilitate the relocation of the device to other work areas, such as Figure 1 and 2 As shown, the bottom of the L-shaped base 1 is fixedly connected with multiple casters 26, which facilitates the movement of the device to other work areas.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An airtightness testing device for metal waveguide production, comprising: The L-shaped base (1) is characterized in that a detection water tank (2) is fixedly connected to the top of the L-shaped base (1), a separation filter (3) is fixedly connected to the bottom of the cavity of the detection water tank (2), a water pump (4) is fixedly connected to the bottom cavity of the detection water tank (2), a U-shaped pipe (5) is fixedly connected to the side wall of the detection water tank (2), one end of the water pump (4) is fixedly connected to one end of the U-shaped pipe (5), and the other end of the water pump (4) is fixedly connected to a water supply plate (6). A plurality of first installation pipe heads (7) are fixedly connected to the inner side wall of one end of the detection water tank (2), one end of each first installation pipe head (7) passes through the side wall of the detection water tank (2) and is fixedly connected to the side wall of the water supply plate (6). A drying chamber (8) is fixedly connected to the side wall cavity of the chamber (2) through a transmission mechanism. Multiple second installation pipe heads (9) are fixedly connected to the side wall of the drying chamber (8). A support plate (10) is fixedly connected to one end cavity of the L-shaped base (1) through a drive mechanism. Multiple electric valves (11) are fixedly connected to the top of the support plate (10). Multiple U-shaped detection marking devices (12) are fixedly connected to the bottom of the support plate (10). One end of each U-shaped detection marking device (12) passes through the side wall of the support plate (10) and is fixedly connected to the output end of the electric valve (11). A power supply mechanism is provided on the side wall of the L-shaped base (1). A control end (13) is fixedly connected to the side wall of the detection water chamber (2).

2. The airtightness testing device for metal waveguide production according to claim 1, characterized in that, The transmission mechanism includes a first cylinder (14), a first sliding port (15) and a first support block (16). The first cylinder (14) is fixedly connected to the side wall cavity of the detection water tank (2). The first sliding port (15) is opened on one side wall of the detection water tank (2) and is slidably connected to the first support block (16). One end of the first support block (16) is fixedly connected to one end of the first cylinder (14), and the other end of the first support block (16) is fixedly connected to the drying chamber (8).

3. The airtightness testing device for metal waveguide production according to claim 1, characterized in that, The driving mechanism includes a second cylinder (17), a second sliding port (18), and a second support block (19). The second cylinder (17) is fixedly connected to one end cavity of the L-shaped base (1). The second sliding port (18) is opened at the top of one end of the L-shaped base (1) and is slidably connected to the second support block (19). One end sidewall of the second support block (19) is fixedly connected to one end of the second cylinder (17), and the other end of the second support block (19) is fixedly connected to the sidewall of the support plate (10).

4. The airtightness testing device for metal waveguide production according to claim 1, characterized in that, The power supply mechanism includes a hot air blower (20), a polyurethane foaming agent (21), an airflow pipe (22), and a liquid pipe (23). The hot air blower (20) and the polyurethane foaming agent (21) are fixedly connected to both ends of the side wall of the L-shaped base (1). The output end of the hot air blower (20) is fixedly connected to the airflow pipe (22). The other end of the airflow pipe (22) is fixedly connected to the input end of the drying chamber (8). The output end of the polyurethane foaming agent (21) is threadedly connected to multiple liquid pipes (23). The other end of each liquid pipe (23) is fixedly connected to the input end of the corresponding electric valve (11).

5. The airtightness testing device for metal waveguide production according to claim 1, characterized in that, Each of the U-shaped detection marking devices (12) is a U-shaped plate, and a marking nozzle (24) is fixedly connected to the inner side wall. Infrared detection devices (25) are fixedly connected to the inner side walls of both ends of the U-shaped detection marking device (12).

6. The airtightness testing device for metal waveguide production according to claim 1, characterized in that, The bottom of the L-shaped base (1) is fixedly connected to multiple casters (26).

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