A radar waveguide air tightness detection tool

Abstract

The present application provides a radar waveguide air tightness detection tool, which relates to the field of detection tooling, including a base, on which a height adjustment mechanism and an auxiliary component are provided; the height adjustment mechanism is provided with a workbench for placing a radar cover, so as to adjust the height of the radar cover to be tested; the execution end of the auxiliary component is located on the side of the workbench, and the execution end of the auxiliary component can move away from or close to the workbench; the first sealing component and the second sealing component are connected to the execution end of the auxiliary component, so as to adjust the first sealing component and the second sealing component in the horizontal direction; the detection component is placed in the closed detection cavity, and the air extraction unit is connected to the closed detection cavity and is configured to extract the air in the closed detection cavity. The present application makes the detection tooling more widely applicable through the height adjustment mechanism and the auxiliary component, and realizes the convenient detection effect through the detection component and the air extraction unit.

Description

Technical Field

[0001] The present application relates to the technical field of detection devices, and specifically to a radar waveguide air tightness detection tool. Background Art

[0002] The radome is a cover installed on the radar; the radome is generally in the form of a cover with openings at both ends; it can prevent the environment from affecting and interfering with the working state of the radar antenna, but when the cover is produced, it is difficult to determine the airtightness of the cover itself; if a cover that is not airtight is installed on the radar, the surrounding environment will affect the device inside the cover, so it needs to be professionally tested using airtightness testing tooling.

[0003] However, the existing detection tooling has low applicability, resulting in the detection effect being greatly affected by the size of the radome. Summary of the Invention

[0004] In order to improve the applicability of the detection tooling, the present application provides a radar waveguide air tightness detection tooling.

[0005] In order to solve the above problems, the following technical solutions are provided:

[0006] A radar waveguide air tightness detection tool, characterized by comprising:

[0007] A base, the base being provided with a height adjustment mechanism for adjusting the height and an auxiliary component for adjusting the horizontal spacing;

[0008] The height adjustment mechanism is provided with a workbench for placing the radome; the execution end of the auxiliary component is located on the side of the workbench, and the execution end of the auxiliary component can move away from or close to the workbench;

[0009] A first sealing component is provided at the base or the execution end of the auxiliary component;

[0010] A second sealing assembly is connected to the execution end of the auxiliary assembly, and the first sealing assembly and the second sealing assembly are respectively located on both sides of the workbench, and when abutting and mating, they seal the openings at both ends of the radar cover to be tested to form a closed detection cavity;

[0011] a detection assembly placed in the sealed detection chamber and configured to be in a first detection state under atmospheric air density and in a second detection state under a preset air density;

[0012] The air extraction unit is connected to the sealed detection cavity and is configured to extract air from the sealed detection cavity.

[0013] The radar waveguide air tightness detection tooling of the present application, wherein the auxiliary components include an adjustment screw, a movable bracket, and a drive motor;

[0014] The adjusting screw is rotatably connected to the base, the movable bracket slides on the base and is threadedly connected to the adjusting screw, and the movable bracket is located on the side of the workbench; the driving motor is fixed to the base and the output shaft is transmission-connected to one end of the adjusting screw;

[0015] The second sealing component is arranged on the movable bracket; the first sealing component is fixed on the base.

[0016] The radar waveguide air tightness detection tooling of the present application, the auxiliary components include an adjustment screw, a first movable bracket, a second movable bracket, and a drive motor;

[0017] The adjusting screw is rotatably connected to the base, and two ends of the adjusting screw are respectively provided with a left-handed thread and a right-handed thread, and the first movable bracket and the second movable bracket are respectively threadedly connected to the left-handed thread and the right-handed thread; and the first movable bracket and the second movable bracket are located on opposite sides of the workbench;

[0018] The driving motor is fixed on the base and the output shaft is transmission-connected to the adjusting screw;

[0019] The first sealing assembly and the second sealing assembly are respectively connected to the corresponding first movable bracket and the second movable bracket.

[0020] The radar waveguide air tightness detection tool of the present application, the first sealing assembly and the second sealing assembly each include a connecting cover and a sealing body;

[0021] The first movable bracket and the second movable bracket are each provided with a through opening, and the connecting covers are respectively provided on the side walls of the first movable bracket and the second movable bracket opposite to each other; the sealing body is fixed to the first movable bracket / the second movable bracket and is provided between the corresponding connecting cover and the first movable bracket / the second movable bracket to form an installation space;

[0022] The opening diameter is larger than the port diameter of the radar to be tested, and the two sealing bodies abut against the radar to be tested; the closed detection cavity includes the installation space and an internal cavity of the radar to be tested that is connected to the installation space.

[0023] The radar waveguide air tightness detection tool of the present application, the sealing body includes a connecting plate and a sealing gasket;

[0024] The connecting plate is fixed on the first movable bracket / the second movable bracket;

[0025] The sealing gasket is fixed on the corresponding connecting plate, and the sealing gasket is located on the side of the connecting plate facing the workbench;

[0026] The sealing gasket is provided with a first communicating hole, and the connecting plate is provided with a second communicating hole communicating with the first communicating hole, so that the installation space is communicated with the internal cavity.

[0027] The radar waveguide air tightness detection tool of the present application, the detection component includes a connecting rod and a detection ball;

[0028] The first end of the connecting rod is hinged to any one of the connecting covers, the detection ball is fixed to the second end of the connecting rod, and the detection ball is located in the internal cavity / the installation space;

[0029] The interior of the detection ball is filled with a gas whose density is less than the density of atmospheric air under standard atmospheric pressure.

[0030] The radar waveguide air tightness detection tooling of the present application, the air extraction unit includes a suction pump and a connecting pipe, the two ends of the connecting pipe are respectively connected to the suction pump and any one of the connecting covers; a control valve is provided on the connecting pipe.

[0031] The radar waveguide air tightness detection tooling of the present application, the height adjustment mechanism includes a telescopic cylinder whose output direction is along the vertical direction, and the workbench is connected to the output end of the telescopic cylinder.

[0032] In the radar waveguide air tightness detection tool of the present application, at least a portion of the connection cover is a transparent plate.

[0033] The hinge point of the connecting rod is arranged on the transparent plate.

[0034] The radar waveguide air tightness detection tool of the present application is provided with at least one pulley on the top surface of the inner wall of the opening, and the pulley is used to guide the radar cover to be tested to extend therein.

[0035] Due to the adoption of the above technical solution, this application has the following advantages and positive effects compared with the existing technology:

[0036] 1. Through the height adjustment mechanism and the auxiliary components for realizing horizontal spacing adjustment, the radome located on the workbench can be adjusted in the height direction; further, it is convenient to realize that the radome is accurately located between the two sealing components, thereby increasing the applicability of the radar waveguide air tightness detection tooling; further, the auxiliary components drive the sealing component to move in the horizontal direction, thereby facilitating the adjustment of the spacing between the first sealing component and the second sealing component, and at the same time facilitating the two sealing components to abut against the corresponding radome openings, perform sealing, and form a closed detection cavity. The adjustability in the height and horizontal directions increases the applicability of the radar waveguide air tightness detection tooling of this embodiment, and plays the effect of facilitating installation and fixation.

[0037] Second, when the sealing gasket abuts against the radome, so that the installation space is connected to the internal cavity of the radome, the detection ball is located in the radome, and the suction pump is used to suck the sealing channel, and the overall airtightness is fed back through the detection ball;

[0038] When the overall air tightness is good, the density inside the radome will gradually decrease and be lower than the density inside the detection ball. At this time, the detection ball can be seen gradually falling through the transparent plate. Similarly, when the air tightness is poor, the detection ball stops moving. In this way, the air tightness test of the radome can be completed quickly, making the overall detection steps more intuitive and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of a radar waveguide air tightness detection tooling according to an embodiment of the present application;

[0040] Figure 2 A schematic diagram of a sealing body in a radar waveguide air tightness detection tooling according to an embodiment of the present application;

[0041] Figure 3 In the radar waveguide air tightness detection tool of the embodiment of the present application Figure 1 Structural diagram at A in the middle

[0042] Description of reference numerals:

[0043] 1. Base; 2. Height adjustment mechanism; 3. Auxiliary components; 4. Workbench; 5. First sealing component; 6. Second sealing component; 7. Detection component; 8. Air extraction unit; 9. Drive motor; 10. Adjustment screw; 11. First movable bracket; 12. Second movable bracket; 13. Connecting cover; 14. Suction pump; 15. Connecting pipe; 16. Control valve; 17. Connecting plate; 18. Sealing gasket; 21. Connecting rod; 22. Detection ball; 23. Telescopic cylinder; 24. Transparent plate; 25. Pulley. DETAILED DESCRIPTION

[0044] The advantages and features of the present application will be more clearly understood from the following description and claims.

[0045] Example 1

[0046] See Figure 1 and 2 In one embodiment, a radar waveguide air tightness detection tool includes a base 1, on which is provided a height adjustment mechanism 2 for adjusting the height and an auxiliary component 3 for adjusting the horizontal spacing, as well as a first sealing component 5 and a second sealing component 6 for abutting both ends of the radar cover, a detection component 7 for detecting air tightness, and an air extraction unit 8.

[0047] A workbench 4 for placing the radome is provided on the height adjustment mechanism 2, and the workbench 4 is arranged horizontally; the execution end of the auxiliary component 3 is located on the side of the workbench 4, and the execution end of the auxiliary component 3 can move away from or close to the workbench 4; the first sealing component 5 is provided on the base 1 or the execution end of the auxiliary component 3; the second sealing component 6 is connected to the execution end of the auxiliary component 3, and the first sealing component 5 and the second sealing component 6 are respectively located on both sides of the workbench 4, and when abutting and matching, they seal the openings at both ends of the radome to be tested to form a closed detection cavity;

[0048] The auxiliary component 3 has two execution ends, and the first sealing component 5 and the second sealing component 6 are both connected to the execution ends of the auxiliary component 3 , and the first sealing component 5 and the second sealing component 6 are located on opposite sides of the workbench 4 .

[0049] The first sealing component 5 and the second sealing component 6 are connected to or away from the opening end of the corresponding radar cover through the auxiliary component 3; the detection component 7 is used to be placed in the closed detection cavity, and is configured to be in a first detection state under the atmospheric air density and a second detection state under the preset air density; the air extraction unit 8 is connected to the closed detection cavity and is configured to extract air in the closed detection cavity.

[0050] In this embodiment, the height of the workbench 4 is adjusted through a height adjustment mechanism 2. The auxiliary assembly 3 drives the horizontal adjustment of the first and second sealing assemblies 5 and 6, allowing the radome to be spatially adjusted and accurately positioned between the first and second sealing assemblies 5 and 6. Furthermore, the first and second sealing assemblies 5 and 6 abut against the open ends of the radome, forming a sealed detection chamber that is isolated from the outside air. An air extraction unit 8 then evacuates the sealed detection chamber, enabling observation through the detection assembly 7. The height adjustment mechanism 2 and auxiliary assembly 3 not only expand the applicability of the detection tooling, but also facilitate detection.

[0051] The specific structure of the radar waveguide air tightness detection tooling of this embodiment is further described below:

[0052] In this embodiment, the upper surface of the base 1 is provided with grooves, which are located on both sides of the workbench 4; the auxiliary assembly 3 includes an adjusting screw 10, a first movable bracket 11, a second movable bracket 12 (the first movable bracket 11 and the second movable bracket 12 are the aforementioned actuators), and a drive motor 9;

[0053] The adjusting screw 10 is rotatably connected to the base 1 and is located in the groove. A left-handed thread and a right-handed thread are respectively formed at both ends of the adjusting screw 10. The first movable bracket 11 and the second movable bracket 12 are respectively threadedly connected to the left-handed thread and the right-handed thread. The side walls of the first movable bracket 11 and the second movable bracket 12 abut against the inner wall of the groove to achieve horizontal movement of the first movable bracket 11 and the second movable bracket 12. The first movable bracket 11 and the second movable bracket 12 are located on opposite sides of the workbench 4.

[0054] The driving motor 9 is fixed on the base 1 and the output shaft is connected to one end of the adjusting screw 10;

[0055] The first sealing assembly 5 and the second sealing assembly 6 are connected to the corresponding first movable bracket 11 and second movable bracket 12 respectively.

[0056] The driving motor 9 drives the adjusting screw 10 to rotate. Due to the setting of the left-handed thread and the right-handed thread, the first movable bracket 11 and the second movable bracket 12 can move relative to or opposite to each other; thereby, on the one hand, the synchronous movement of the first movable bracket 11 and the second movable bracket 12 is achieved, and on the other hand, the forward and reverse rotation of the driving motor 9 is used to facilitate the control of the movement direction of the first movable bracket 11 and the second movable bracket 12.

[0057] Further explanation, the first sealing assembly 5 and the second sealing assembly 6 each include a connecting cover 13 and a sealing body;

[0058] The first movable bracket 11 and the second movable bracket 12 are each provided with a through opening, and the connecting cover 13 is respectively provided on the side wall of the first movable bracket 11 and the second movable bracket 12 opposite to each other; the sealing body is fixed to the first movable bracket 11 or the second movable bracket 12 and is provided between the corresponding connecting cover 13 and the first movable bracket 11 or the second movable bracket 12, and an installation space is formed between the sealing body and the connecting cover 13;

[0059] The opening diameter is larger than the port diameter of the radar to be tested, and the two sealing bodies are in contact with the radar to be tested; the closed detection cavity includes an installation space and an internal cavity of the radar to be tested that is connected to the installation space.

[0060] To further illustrate, the sealing body includes a connecting disc 17 and a sealing gasket 18;

[0061] The connecting plate 17 is fixed on the first movable bracket 11 / the second movable bracket 12;

[0062] The sealing gasket 18 is fixed on the corresponding connecting plate 17, and the sealing gasket 18 is located on the side of the connecting plate 17 facing the workbench 4;

[0063] A first communicating hole is formed on the sealing gasket 18 , and a second communicating hole communicating with the first communicating hole is formed on the connecting plate 17 . The first communicating hole and the second communicating hole are coaxially arranged so that the installation space and the internal cavity are connected.

[0064] When the sealing gasket 18 is driven by the auxiliary component 3, the sealing gasket 18 comes into contact with the opening of the radar cover, and a closed detection cavity is formed. The installation space and the internal cavity are connected through the first connecting hole and the second connecting hole, and are isolated from the outside air. The detection of the radar cover is achieved through the detection component 7 and the air extraction unit 8.

[0065] To further illustrate, the detection assembly 7 includes a connecting rod 21 and a detection ball 22;

[0066] The first end of the connecting rod 21 is hinged to any connecting cover 13, and the detection ball 22 is fixed to the second end of the connecting rod 21, and the detection ball 22 is located in the internal cavity / installation space;

[0067] The interior of the detection ball 22 is filled with a gas having a density less than the density of atmospheric air under standard atmospheric pressure.

[0068] The air extraction unit 8 exhausts air, causing the gas density in the sealed detection chamber to decrease. When the gas density in the sealed detection chamber is lower than the gas density in the detection ball 22, the detection ball 22 is in the second detection state, that is, the falling state. At the same time, in order to reduce the influence of the connecting rod 21 on the detection ball 22, the mass of the connecting rod 21 should be reduced as much as possible.

[0069] The air extraction unit 8 includes a suction pump 14 and a connecting pipe 15, the two ends of the connecting pipe 15 are respectively connected to the suction pump 14 and any connecting cover 13; a control valve 16 is provided on the connecting pipe 15; the suction pump 14 is fixed on the outer wall of the connecting cover 13, and the suction pump 14 and the detection ball 22 are respectively arranged on the connecting covers 13 on both sides; the connecting pipe 15 is connected to the closed detection cavity.

[0070] During the inspection, the suction pump 14 is turned on to extract the gas inside the radome. When the overall airtightness is good, the gas density inside the radome will gradually decrease and be less than the gas density inside the detection ball 22. At this time, the detection ball 22 can be seen gradually falling down or the hinge point changing through the transparent plate 24. Similarly, when the airtightness of the radome is not good, the detection ball 22 stops moving. In this way, the airtightness inspection of the radome can be completed quickly.

[0071] At the same time, the control valve 16 can be used to control whether the connecting pipe 15 is open.

[0072] To further explain, the height adjustment mechanism 2 includes a telescopic cylinder 23 with an output direction along the vertical direction, and the workbench 4 is connected to the output end of the telescopic cylinder 23 .

[0073] The telescopic steel is used to realize the telescopic movement of the workbench 4, thereby realizing the adjustment of the height of the radome.

[0074] To further explain, at least a portion of the connection cover 13 is a transparent plate 24 .

[0075] The hinge point of the connecting rod 21 is arranged on the transparent plate 24, so that the detection ball 22 is easy to observe.

[0076] To further explain, at least one pulley 25 is provided on the top surface of the inner wall of the opening. The pulley 25 is used to guide the radome to be tested to extend therein, thereby reducing friction on the radome and reducing damage to the product.

[0077] The implementation principle of the radar waveguide air tightness detection tooling of the embodiment of the present application is as follows: when in use, the radar cover is first placed on the workbench 4, and then the radar cover is located between the two sealing bodies through the telescopic cylinder; the detection ball 22 is placed in the inner cavity of the radar cover, and then the drive motor 9 is adjusted. By adjusting the rotation of the screw 10, the movable brackets at both ends are close to each other, and finally the open end face of the radar cover is against the sealing gasket 18, and the preparation work is completed; during detection, the gas inside the radar cover is extracted by turning on the suction pump 14. When the overall air tightness is good, the density inside the radar cover will gradually decrease and be less than the density inside the detection ball 22. At this time, the detection ball 22 can be seen gradually floating up through the transparent plate 24. Similarly, when the air tightness is not good, the detection ball 22 stops moving, so that the air tightness detection of the radar cover can be quickly completed.

[0078] Example 2:

[0079] Reference Figure 1 and 3 A radar waveguide air tightness detection tool includes a base 1, on which is provided a height adjustment mechanism 2 for adjusting the height and an auxiliary component 3 for adjusting the horizontal spacing, as well as a first sealing component 5 and a second sealing component 6 for abutting the two ends of the radar cover, a detection component 7 for detecting air tightness, and an air extraction unit 8.

[0080] A workbench 4 for placing the radome is provided on the height adjustment mechanism 2, and the workbench 4 is arranged horizontally; the execution end of the auxiliary component 3 is located on the side of the workbench 4, and the execution end of the auxiliary component 3 can move away from or close to the workbench 4; the first sealing component 5 is fixed to the base 1 and cannot be moved, and the second sealing component 6 is arranged at the execution end of the auxiliary component 3 to realize the mobility of the second sealing component 6.

[0081] Among them, the auxiliary component 3 includes an adjusting screw 10, a movable bracket, and a driving motor 9;

[0082] The adjusting screw 10 is rotatably connected to the base 1, the movable bracket slides on the base 1 and is threadedly connected to the adjusting screw 10, and the movable bracket (actuating end) is located on the side of the workbench 4 away from the first sealing assembly 5; the drive motor 9 is fixed to the base 1 and the output shaft is transmission-connected to one end of the adjusting screw 10, so that the movable bracket moves along the axis of the adjusting screw 10;

[0083] The detection component 7 is placed in the sealed detection cavity and is configured to be in a first detection state under atmospheric air density and in a second detection state under a preset air density; the air extraction unit 8 is connected to the sealed detection cavity and is configured to extract air in the sealed detection cavity.

[0084] The structures of the first sealing assembly 5 and the second sealing assembly 6 are the same as those in the first embodiment, and the height adjustment mechanism 2 is the same as that in the first embodiment.

[0085] The rotation of the adjusting screw 10 is achieved by driving the motor 9, and the rotation of the adjusting screw 10 realizes the movement of the movable bracket, driving the second sealing component 6 to approach or move away from the first sealing component 5, realizing adjustment in the horizontal direction, thereby achieving contact or release of the radar cover.

[0086] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if such changes fall within the scope of the claims of the present invention and their equivalents, they will still fall within the scope of protection of the present invention.

Claims

1. A radar waveguide air tightness detection tool, characterized in that: include: A base, the base being provided with a height adjustment mechanism for adjusting the height and an auxiliary component for adjusting the horizontal spacing; The height adjustment mechanism is provided with a workbench for placing the radome to be tested; the execution end of the auxiliary component is located on the side of the workbench, and the execution end of the auxiliary component can move away from or close to the workbench; A first sealing component is provided at the base or the execution end of the auxiliary component; A second sealing assembly is connected to the execution end of the auxiliary assembly, and the first sealing assembly and the second sealing assembly are respectively located on both sides of the workbench, and when abutting and mating, they seal the openings at both ends of the radar cover to be tested to form a closed detection cavity; an air extraction unit, connected to the sealed detection cavity and configured to extract air from the sealed detection cavity; The auxiliary assembly includes an adjusting screw, a first movable bracket, a second movable bracket, and a driving motor; The first sealing assembly and the second sealing assembly are respectively connected to the corresponding first movable bracket and the second movable bracket; The first sealing assembly and the second sealing assembly each include a connecting cover and a sealing body; The first movable bracket and the second movable bracket are each provided with a through opening, and the connecting cover is respectively provided on the side wall of the first movable bracket and the second movable bracket opposite to each other; the sealing body is fixed to the first movable bracket or the second movable bracket and provided between the corresponding connecting cover and the first movable bracket or the second movable bracket, and forms an installation space with the connecting cover; The opening diameter is larger than the port diameter of the radome to be tested, and the two sealing bodies abut against the radome to be tested; the closed detection cavity includes the installation space and the internal cavity of the radome to be tested that is connected to the installation space; A detection assembly is placed in the sealed detection cavity, comprising a connecting rod and a detection ball; a first end of the connecting rod is hinged to any one of the connecting covers, the detection ball is fixed to the second end of the connecting rod, and the detection ball is located in the internal cavity and / or the installation space; the interior of the detection ball is filled with a gas having a density less than the density of atmospheric air under standard atmospheric pressure; before the air extraction unit extracts gas, the gas density in the sealed detection cavity is the density of atmospheric air under standard atmospheric pressure, and the detection ball is in a first detection state, i.e., a floating state; the gas density in the sealed detection cavity is reduced by the extraction of gas by the air extraction unit; when the gas density in the sealed detection cavity is lower than the gas density in the detection ball, the detection ball is in a second detection state, i.e., a falling state; The adjusting screw is rotatably connected to the base, and two ends of the adjusting screw are respectively provided with a left-handed thread and a right-handed thread, and the first movable bracket and the second movable bracket are respectively threadedly connected to the left-handed thread and the right-handed thread; and the first movable bracket and the second movable bracket are located on opposite sides of the workbench; The driving motor is fixed on the base and the output shaft is transmission-connected to the adjusting screw; The sealing body includes a connecting disc and a sealing gasket; The connecting plate is fixed on the first movable bracket or the second movable bracket; The sealing gasket is fixed on the corresponding connecting plate, and the sealing gasket is located on the side of the connecting plate facing the workbench; The sealing gasket is provided with a first communicating hole, and the connecting plate is provided with a second communicating hole communicating with the first communicating hole, so that the installation space is communicated with the internal cavity.

2. The radar waveguide air tightness detection tool according to claim 1, characterized in that: The air extraction unit includes a suction pump and a connecting pipe, wherein both ends of the connecting pipe are respectively connected to the suction pump and any one of the connecting covers; and a control valve is provided on the connecting pipe.

3. The radar waveguide air tightness detection tool according to claim 1, characterized in that: The height adjustment mechanism includes a telescopic cylinder whose output direction is along the vertical direction, and the workbench is connected to the output end of the telescopic cylinder.

4. The radar waveguide air tightness detection tool according to claim 1, characterized in that: At least a portion of the connection cover is a transparent plate; The hinge point of the connecting rod is arranged on the transparent plate.

5. The radar waveguide air tightness detection tool according to claim 1, characterized in that: At least one pulley is provided on the top surface of the inner wall of the opening, and the pulley is used to guide the radar cover to be tested to extend therein.

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