An aircraft sensor sealing test device

Abstract

The present invention relates to the technical field of aircraft sensor testing, and specifically discloses a sealing test device for aircraft sensors, including: a main console, a simulation detection mechanism, a sample extraction and installation mechanism, and an air source unit; the simulation detection mechanism is arranged on the left side of the main console, and the simulation detection mechanism can automatically detect the sealing performance of aircraft sensor workpieces; the sample extraction and installation mechanism is arranged on the front side outside the simulation detection mechanism, and the sample extraction and installation mechanism can sample and select aircraft sensor workpieces processed on the assembly line and install the aircraft sensor workpieces inside the simulation detection mechanism. By adopting an automated sampling and installation detection technology, the sampled sensors are automatically installed on the simulated aircraft structural parts, more realistically simulating the installation environment of the sensors, detecting and evaluating the internal and external sealing conditions, and simulating the working state of the sensors, so as to timely discover the sealing problems occurring during the working process and perform repairs and improvements.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft sensor testing, and specifically to a sealing test device for aircraft sensors. Background Art

[0002] Aircraft sensors are devices used on aircraft to sense and measure various physical quantities, chemical quantities, and flight state parameters. They provide key information for aircraft flight control, navigation, engine management, environmental monitoring, and other systems to ensure the safe flight and efficient operation of the aircraft. Among them, the aircraft angle-of-attack sensor is an important device for measuring the angle (angle of attack) between the aircraft wing and the airflow. The angle-of-attack sensor provides real-time angle-of-attack information for the pilot, enabling the pilot to understand the flight attitude of the aircraft and the airflow conditions, avoiding the aircraft from entering a stall state, and ensuring flight safety. At the same time, the pilot can adjust the flight attitude according to the angle-of-attack data, optimize flight performance, improve fuel efficiency, and reduce operating costs. The signal of the angle-of-attack sensor is one of the important input parameters of the aircraft flight control system. The flight control system automatically adjusts the rudder deflection, engine thrust, etc. of the aircraft according to the angle-of-attack information to maintain the stable flight of the aircraft and achieve various flight tasks. The vane-type angle-of-attack sensor consists of a vane installed outside the aircraft fuselage and an angle measurement mechanism. The vane rotates with the direction of the airflow, and its rotation angle is proportional to the angle of attack of the aircraft. The angle measurement mechanism measures the rotation angle of the vane and converts it into an electrical signal or a mechanical signal, which is transmitted to the aircraft instrument or flight control system to display the angle-of-attack value of the aircraft.

[0003] In the prior art, the detection of the vane-type angle-of-attack sensor cannot simulate the state after actual installation. The installed sensor may generate new leakage paths due to the connection part with the aircraft fuselage, which is difficult to detect in traditional separate sensor sealing detection, and the sealing components of the vane-type angle-of-attack sensor may become loose during operation, and this potential risk cannot be found in static detection. Summary of the Invention

[0004] The purpose of the present invention is to provide a sealing test device for aircraft sensors to solve the problems mentioned in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A sealing performance testing device for aircraft sensors, comprising: a main console, a simulation detection mechanism, a sample extraction and installation mechanism, and a gas source unit; the simulation detection mechanism is arranged on the left side of the main console, and the simulation detection mechanism can automatically detect the sealing performance of aircraft sensor workpieces; the sample extraction and installation mechanism is arranged on the front side outside the simulation detection mechanism, and the sample extraction and installation mechanism can sample and select aircraft sensor workpieces processed on the assembly line and install the aircraft sensor workpieces inside the simulation detection mechanism; the gas source unit is arranged on the left side of the simulation detection mechanism, and the gas source unit is electrically connected to the main console.

[0006] Preferably, the simulation detection mechanism includes: a vacuum chamber, an electrically controlled sealing door, a fixed partition, a helium mass spectrometer leak detector, a movable partition, a first electric telescopic rod, a mounting member, and an angle-of-attack sensor workpiece; the vacuum chamber is installed on the left side of the main console, the vacuum chamber is connected to the gas source unit through a pipeline, and the vacuum chamber is electrically connected to the main console; the electrically controlled sealing door is installed at the top opening of the vacuum chamber, and the electrically controlled sealing door is electrically connected to the main console; the number of the fixed partitions is two, and the two fixed partitions are respectively installed in the middle of the left and right sides inside the vacuum chamber along the up and down directions; the helium mass spectrometer leak detector is installed at the bottom end of the rear side inside the vacuum chamber, and the helium mass spectrometer leak detector is electrically connected to the main console; the movable partition is inserted into the inner sides of the left and right fixed partitions along the up and down directions; the number of the first electric telescopic rods is four, and the four first electric telescopic rods are respectively installed at the bottom end inside the vacuum chamber along the up and down directions and are located on the front and rear sides of the movable partition, and the telescopic ends of the four first electric telescopic rods are respectively connected to the left and right sides of the top ends of the two sides of the front side of the movable partition, and the first electric telescopic rods are electrically connected to the main console; the mounting member is embedded in the middle of the movable partition; the angle-of-attack sensor workpiece can be detachably installed inside the mounting member.

[0007] Preferably, a simulation detection component is arranged in front of the vacuum chamber, and an auxiliary installation component is arranged behind the movable partition.

[0008] Preferably, the simulation detection component includes: a rotation module, a double-ended electric telescopic rod, a first mounting seat, a toggle rod, a fixed seat, a micro motor, a rotating rod, and a connecting rod; the rotation module is installed on the front side inside the vacuum box, and the rotation module is electrically connected to the main console; the double-ended electric telescopic rod is installed on the rear side of the rotating end of the rotation module, and the double-ended electric telescopic rod is electrically connected to the main console; the number of the first mounting seats is two, and the two first mounting seats are respectively installed outside the telescopic ends on the upper and lower sides of the double-ended electric telescopic rod; the number of the toggle rods is two, and the two toggle rods are respectively rotatably connected to the inner sides of the upper and lower first mounting seats through a rotating shaft; the number of the fixed seats is two, and the two fixed seats are respectively installed at the inner ends on the right sides of the upper and lower first mounting seats; the number of the micro motors is two, and the two micro motors are respectively installed at the rear sides of the upper and lower fixed seats, and the micro motors are electrically connected to the main console; the number of the rotating rods is two, and one ends of the two rotating rods are respectively installed on the left sides of the rotating ends of the upper and lower micro motors; the number of the connecting rods is two, and one ends of the two connecting rods are respectively rotatably connected to the front ends on the right sides of the upper and lower toggle rods, and the right sides of the other ends of the two connecting rods are respectively rotatably connected to the other ends of the upper and lower rotating rods through a rotating shaft.

[0009] Preferably, the sample extraction and installation mechanism includes: an AGV robot, a robotic arm, and a grasping and installation component; the AGV robot is arranged on the front side outside the vacuum box, and the AGV robot can be remotely network-connected to the main console; the robotic arm is installed on the top of the AGV robot, and the robotic arm is electrically connected to the AGV robot; the grasping and installation component is installed at the bottom of the end execution part of the robotic arm.

[0010] Preferably, the grasping and mounting component includes: a mounting frame, a second mounting seat, a limiting component, a circular outer shell, a fourth electric telescopic rod, a driven gear, a magnetic screw sleeve, a second motor, and a driving gear; the mounting frame is fixedly installed at the bottom of the end execution part of the robotic arm; the second mounting seat is installed on the front side of the mounting frame; the limiting component is installed at the bottom of the second mounting seat along the front-back direction; the circular outer shell is installed at the bottom of the limiting end of the limiting component; the fourth electric telescopic rod is installed on the front side of the second mounting seat, and the telescopic end of the fourth electric telescopic rod passes through the second mounting seat and is connected to the top of the front side of the circular outer shell, and the fourth electric telescopic rod is electrically connected to the AGV robot; the number of the driven gears is four, and the four driven gears are respectively rotationally connected to the rear end of the inner cavity of the circular outer shell through bearings at intervals of 90 degrees along the circumferential direction; the number of the magnetic screw sleeves is four, and the four magnetic screw sleeves are respectively rotationally connected to the rear end of the outside of the circular outer shell through rotating shafts at intervals of 90 degrees along the circumferential direction, and the axes of the four magnetic screw sleeves extend into the inner cavity of the circular outer shell and are connected to the axes of the four driven gears; the second motor is installed at the front end of the outside of the circular outer shell, the rotating end of the second motor extends into the inner cavity of the circular outer shell, and the second motor is electrically connected to the AGV robot; the driving gear is fixedly installed at the rear side of the rotating end of the second motor, and the outside of the driving gear meshes with the four driven gears.

[0011] Preferably, a workpiece grasping unit is arranged on the inner side of the mounting frame.

[0012] Preferably, the magnetic screw sleeve is made of a magnetic material and can magnetically adsorb and fix bolts.

[0013] Compared with the prior art, the beneficial effects of the present invention are: [[ID=I1]]

[0014] 1. The first electric telescopic rods on the four sides extend to drive the movable partition plate to move upward along the inner side of the fixed partition plate out of the inner cavity of the vacuum box. The robotic arm drives the grasping and mounting component to insert the tail of the angle of attack sensor workpiece into the inner cavity of the mounting component. The auxiliary mounting component clamps and fixes the tail of the angle of attack sensor workpiece. The fourth electric telescopic rod extends to drive the circular outer shell to move backward, so that the fixing bolts on the four sides of the magnetic screw sleeve sequentially pass through the angle of attack sensor workpiece and the internal fixing screw holes of the mounting component. The second motor drives the driving gear to rotate, so that the four driven gears synchronously drive the magnetic screw sleeves to rotate under the rotating force of the driving gear, so that the four magnetic screw sleeves lock the internal fixing bolts to the angle of attack sensor workpiece and the inside of the mounting component. The first electric telescopic rod drives the movable partition plate to descend along the inner side of the fixed partition plate to the inner cavity of the vacuum box.

[0015] 2. The vacuum chamber evacuates its interior to a vacuum negative pressure state. The gas source unit fills the interior of the vacuum chamber with helium gas at a certain pressure and flow rate, and the space in front of the fixed partitions on the left and right sides. The helium mass spectrometer leak detector detects whether helium gas leaks from the angle-of-attack sensor workpiece to the space behind the fixed partitions on the left and right sides. If helium gas leakage is detected, the helium mass spectrometer leak detector sends a corresponding alarm signal to the main control console. During the detection process, the rotation module drives the double-end electric telescopic rod to rotate to the vertical state. The double-end electric telescopic rod shortens to drive the first mounting seats on the upper and lower sides to move the toggle rods inward to the positions on the upper and lower sides of the angle-of-attack sensor workpiece blades. The upper and lower micro-motors drive the rotating rods at the corresponding positions to rotate intermittently in the clockwise or counterclockwise direction, so that the rotating rods on the upper and lower sides drive one end of the connecting rod at the corresponding position to move inward or outward intermittently. Then, with the cooperation of the connecting rods on the upper and lower sides, the toggle rods are driven to swing inward or outward inside the first mounting seats, and the toggle rods on the upper and lower sides toggle the angle-of-attack sensor workpiece blades to make them swing, thereby simulating the working state of the angle-of-attack sensor workpiece.

[0016] In summary, the present invention adopts an automated sampling and installation detection technology to automatically install the sampled sensors on the simulated aircraft structural parts, more realistically simulate the installation environment of the sensors, detect and evaluate the internal and external sealing conditions, and simulate the working state of the sensors to promptly detect sealing problems occurring during the working process for repair and improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is Figure 1 an exploded view of the simulation detection mechanism of

[0019] Figure 3 is Figure 2 an enlarged view of part A of

[0020] Figure 4 is Figure 2 an enlarged view of part B of

[0021] Figure 5 is Figure 1 an exploded view of the sample extraction and installation mechanism of

[0022] Figure 6 is Figure 5 an exploded view of the grasping and installation component of

[0023] Figure 7 is Figure 6 an enlarged view of part C of

[0024] In the figure: 1. Main control console; 2. Simulation detection mechanism, including 21. Vacuum chamber, 22. Electrically controlled sealing door, 23. Fixed partition, 24. Helium mass spectrometer leak detector, 25. Movable partition, 26. First electric telescopic rod, 27. Mounting component, 28. Angle-of-attack sensor workpiece, 29. Rotation module, 210. Double-end electric telescopic rod, 211. First mounting seat, 212. Toggle rod, 213. Fixed seat, 214. Micro motor, 215. Rotating rod, 216. Connecting rod, 217. Mounting plate, 218. Guide rail frame, 219. Sleeve seat, 220. Second electric telescopic rod, 221. First mounting frame, 222. First slot seat, 223. Moving frame, 224. Linear motor, 225. Clamping module; 3. Sample extraction and installation mechanism, including 31. AGV robot, 32. Manipulator; 4. Gripping and mounting component, including 41. Mounting frame, 42. Second mounting frame, 43. Second slot seat, 44. Plug rod, 45. Third electric telescopic rod, 46. Clamping seat, 47. Belt cover, 48. First motor, 49. Drive belt, 410. Second mounting seat, 411. Limiting component, 412. Circular outer shell, 413. Fourth electric telescopic rod, 414. Driven gear, 415. Magnetic screw sleeve, 416. Second motor, 417. Driving gear; 5. Air source unit. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 - 7 , the present invention provides a technical solution: a sealing performance testing device for aircraft sensors, including: a main control console 1, a simulation detection mechanism 2, a sample extraction and installation mechanism 3, and an air source unit 5. The main control console 1 adopts two operation modes: automatic control and manual control; the simulation detection mechanism 2 is arranged on the left side of the main control console 1, and the simulation detection mechanism 2 can automatically detect the sealing performance of aircraft sensor workpieces; the sample extraction and installation mechanism 3 is arranged on the front side outside the simulation detection mechanism 2, and the sample extraction and installation mechanism 3 can sample and select aircraft sensor workpieces processed on the production line and install the aircraft sensor workpieces inside the simulation detection mechanism 2; the air source unit 5 is arranged on the left side of the simulation detection mechanism 2, the air source unit 5 is electrically connected to the main control console 1, and the air source unit 5 can be controlled by the main control console 1 to generate helium gas with a certain pressure and flow rate and fill it into the vacuum chamber 21. The inflation pressure of the air source unit 5 is adjusted according to the detection standard, and the helium gas inside the vacuum chamber 21 is recovered and reused after the detection is completed.

[0027] As a preferred solution, furthermore, as Figure 2 , Figure 3 and Figure 4 shown, the simulation detection mechanism 2 includes: a vacuum chamber 21, an electric control sealing door 22, a fixed partition 23, a helium mass spectrometer leak detector 24, a movable partition 25, a first electric telescopic rod 26, a mounting member 27, and an angle-of-attack sensor workpiece 28; the vacuum chamber 21 is installed on the left side of the main console 1, the vacuum chamber 21 is connected to the gas source unit 5 through a pipeline, the vacuum chamber 21 is electrically connected to the main console 1, the vacuum chamber 21 is controlled by the main console 1, and the vacuum chamber 21 can discharge the internal air; the electric control sealing door 22 is installed at the top opening of the vacuum chamber 21, the electric control sealing door 22 is electrically connected to the main console 1, the electric control sealing door 22 is controlled by the main console 1, and the electric control sealing door 22 can seal the top opening of the vacuum chamber 21; the number of the fixed partitions 23 is two, the two fixed partitions 23 are respectively installed in the middle of the left and right sides inside the vacuum chamber 21 along the up-and-down direction, the shape of the fixed partition 23 is a convex character structure, and the top of the fixed partition 23 contacts the sealing door of the electric control sealing door 22, which can divide the vacuum chamber 21 into two parts, front and back; the helium mass spectrometer leak detector 24 is installed at the bottom end of the rear side inside the vacuum chamber 21, and the helium mass spectrometer leak detector 24 is electrically connected to the main console 1; the movable partition 25 is inserted into the inner sides of the left and right fixed partitions 23 along the up-and-down direction, grooves adapted for insertion with the fixed partitions 23 are provided on the left and right sides of the movable partition 25, and the connection between the movable partition 25 and the fixed partitions 23 is sealed to ensure the sealing performance while the movable partition 25 moves between the fixed partitions 23; the number of the first electric telescopic rods 26 is four, the four first electric telescopic rods 26 are respectively installed at the bottom end inside the vacuum chamber 21 along the up-and-down direction and are located on the front and back sides of the movable partition 25, the telescopic ends of the four first electric telescopic rods 26 are respectively connected to the left and right sides of the top of the front side of the movable partition 25, the first electric telescopic rods 26 are electrically connected to the main console 1, and the first electric telescopic rods 26 are controlled by the main console 1 to drive the movable partition 25 to move up and down by extending and shortening itself; the mounting member 27 is embedded in the middle of the movable partition 25; the angle-of-attack sensor workpiece 28 can be detachably installed inside the mounting member 27.

[0028] More specifically, as Figure 3As shown in the figure, a simulation detection component is provided in front of the vacuum chamber 21. The simulation detection component includes: a rotation module 29, a double-ended electric telescopic rod 210, a first mounting seat 211, a toggle rod 212, a fixed seat 213, a micro motor 214, a rotating rod 215, and a connecting rod 216; the rotation module 29 is installed on the front side inside the vacuum chamber 21, the rotation module 29 is electrically connected to the main console 1, the rotation module 29 is controlled by the main console 1, and the rotation module 29 can drive the double-ended electric telescopic rod 210 to rotate clockwise or counterclockwise; the double-ended electric telescopic rod 210 is installed on the rear side of the rotating end of the rotation module 29, the double-ended electric telescopic rod 210 is electrically connected to the main console 1, the double-ended electric telescopic rod 210 is controlled by the main console 1, and the double-ended electric telescopic rod 210 can drive the first mounting seats 211 on the upper and lower sides to move synchronously inward or outward through its own elongation and shortening; the number of the first mounting seats 211 is two, and the two first mounting seats 211 are respectively installed outside the telescopic ends on the upper and lower sides of the double-ended electric telescopic rod 210; the number of the toggle rods 212 is two, and the two toggle rods 212 are respectively rotatably connected to the inside of the upper and lower first mounting seats 211 through a rotating shaft, the toggle rod 212 can swing upward or downward inside the first mounting seat 211, and the rear end of the toggle rod 212 is made of rubber material to avoid damaging the blade of the angle of attack sensor workpiece 28 when contacting it; the number of the fixed seats 213 is two, and the two fixed seats 213 are respectively installed at the inner ends on the right sides of the upper and lower first mounting seats 211; the number of the micro motors 214 is two, and the two micro motors 214 are respectively installed at the rear sides of the upper and lower fixed seats 213, the micro motor 214 is electrically connected to the main console 1, the micro motor 214 is controlled by the main console 1, and the micro motor 214 can drive the rotating rod 215 to rotate clockwise or counterclockwise; the number of the rotating rods 215 is two, and one ends of the two rotating rods 215 are respectively installed on the left sides of the rotating ends of the upper and lower micro motors 214; the number of the connecting rods 216 is two, one ends of the two connecting rods 216 are respectively rotatably connected to the front ends on the right sides of the upper and lower toggle rods 212 through a rotating shaft, and the other ends on the right sides of the two connecting rods 216 are respectively rotatably connected to the other ends of the upper and lower rotating rods 215 through a rotating shaft.

[0029] More specifically, as Figure 2 and Figure 4As shown, the rear side of the movable partition 25 is provided with auxiliary mounting components, which include: a mounting plate 217, a guide rail frame 218, a sleeve seat 219, a second electric telescopic rod 220, a first mounting frame 221, a first slot seat 222, a movable frame 223, a linear motor 224 and a clamping module 225; the mounting plate 217 is fixedly mounted on the top of the rear side of the movable partition 25; the guide rail frame 218 is mounted on the rear side of the bottom end of the mounting plate 217 in the vertical direction; the sleeve seat 219 is sleeved on the guide rail frame 218 in the left and right direction The sleeve seat 219 can move up and down outside the guide rail frame 218; the second electric telescopic rod 220 is installed at the bottom end of the mounting plate 217 along the up and down direction and is located on the inner side of the guide rail frame 218. The telescopic end of the second electric telescopic rod 220 is connected to the upper surface of the sleeve seat 219. The second electric telescopic rod 220 is electrically connected to the main control console 1. The second electric telescopic rod 220 is controlled by the main control console 1 and can drive the sleeve seat 219 to move up and down. The first mounting frame 221 is set The bottom end of the sleeve seat 219 is located outside the guide rail frame 218; there are two first slot seats 222, and the two first slot seats 222 are installed on the left and right sides of the middle of the top front side of the first mounting frame 221; the moving frame 223 is inserted into the inner cavity of the two left and right first slot seats 222 along the front and back directions, and the moving frame 223 can move back and forth in the inner cavity of the first slot seat 222; the linear motor 224 is installed at the bottom end of the sleeve seat 219, and the telescopic end of the linear motor 224 is connected to the rear bottom of the moving frame 223, and the linear The linear motor 224 is electrically connected to the main control console 1, and the linear motor 224 is controlled by the main control console 1. The linear motor 224 can drive the movable frame 223 to move forward and backward; the clamping module 225 is installed at the front end of the movable frame 223, and the clamping module 225 is electrically connected to the main control console 1. The clamping module 225 is controlled by the main control console 1. The clamping module 225 can clamp and fix the rear end of the angle of attack sensor workpiece 28, and the clamping structure of the clamping module 225 is adapted to the rear columnar structure of the angle of attack sensor workpiece 28.

[0030] As a preferred solution, further, Figure 5As shown in the figure, the sample extraction and installation mechanism 3 includes: an AGV robot 31, a robotic arm 32, and a grasping and installation component 4; the AGV robot 31 is arranged on the front side outside the vacuum chamber 21, and the AGV robot 31 can be remotely network-connected to the main console 1. The AGV robot 31 can remotely receive the control signal from the main console 1 and move while avoiding obstacles along a specified route. A control module is provided inside the AGV robot 31 to automate the control of the electrical components inside the sample extraction and installation mechanism 3; the robotic arm 32 is installed on the top of the AGV robot 31, and the robotic arm 32 is electrically connected to the AGV robot 31. The grasping and installation component 4 is installed at the bottom of the end execution part of the robotic arm 32. The robotic arm 32 is automatically controlled by the internal control module of the AGV robot 31, and the robotic arm 32 can drive the grasping and installation component 4 to move in multiple angular directions.

[0031] As a preferred solution, furthermore, as Figure 6 and Figure 7As shown in the figure, the grasping and installation component 4 includes: an installation frame 41, a second installation base 410, a limiting component 411, a circular outer shell 412, a fourth electric telescopic rod 413, a driven gear 414, a magnetic screw sleeve 415, a second motor 416 and a driving gear 417; the installation frame 41 is fixedly installed at the bottom of the end execution part of the robotic arm 32, the second installation base 410 is installed on the front side of the installation frame 41, the limiting component 411 is installed along the front-back direction at the bottom of the second installation base 410, the limiting guide rail in the limiting component 411 is installed along the front-back direction at the bottom of the second installation base 410, and the bottom of the limiting guide rail is sleeved with a limiting slider as the limiting end; the circular outer shell 412 is installed at the bottom of the limiting end of the limiting component 411; the fourth electric telescopic rod 413 is installed on the front side of the second installation base 410, the telescopic end of the fourth electric telescopic rod 413 passes through the second installation base 410 and is connected to the front top of the circular outer shell 412, the fourth electric telescopic rod 413 is electrically connected to the AGV robot 31, the fourth electric telescopic rod 413 is controlled by the internal control module of the AGV robot 31, and the fourth electric telescopic rod 413 can drive the circular outer shell 412 to move back and forth by its own elongation and shortening; the number of the driven gears 414 is four, and the four driven gears 414 are respectively rotatably connected to the rear end of the inner cavity of the circular outer shell 412 at intervals of 90 degrees along the circumferential direction; the number of the magnetic screw sleeves 415 is four, and the four magnetic screw sleeves 415 are respectively rotatably connected to the rear end of the outside of the circular outer shell 412 at intervals of 90 degrees along the circumferential direction, the axes of the four magnetic screw sleeves 415 extend into the inner cavity of the circular outer shell 412 and are connected to the axes of the four driven gears 414, and the magnetic screw sleeve 415 is made of magnetic material and can magnetically adsorb and fix bolts; the second motor 416 is installed at the front end of the outside of the circular outer shell 412, the rotating end of the second motor 416 extends into the inner cavity of the circular outer shell 412, the second motor 416 is electrically connected to the AGV robot 31, the second motor 416 is controlled by the internal control module of the AGV robot 31, and the second motor 416 can drive the driving gear 417 to rotate clockwise or counterclockwise; the driving gear 417 is fixedly installed at the rear side of the rotating end of the second motor 416, and the outside of the driving gear 417 meshes with the four driven gears 414.

[0032] More specifically, as Figure 6As shown, a workpiece grasping unit is provided inside the mounting bracket 41. The workpiece grasping unit includes: a second mounting frame 42, a second slot seat 43, a plug rod 44, a third electric telescopic rod 45, a clamping seat 46, a belt cover 47, a first motor 48, and a transmission belt 49; the second mounting frame 42 is rotatably connected to the middle of the right end inside the mounting bracket 41 through a rotating shaft; the number of the second slot seats 43 is two groups, and the number of each second slot seat 43 is two. The two groups of second slot seats 43 are respectively embedded in the upper and lower ends and the left and right sides inside the second mounting frame 42; the number of the plug rods 44 is two groups, and the number of each plug rod 44 is two. The two groups of plug rods 44 are respectively inserted into the inner cavities of the two groups of second slot seats 43, and the plug rod 44 can move inside and outside the second slot seat 43; the number of the third electric telescopic rods 45 is two. The two third electric telescopic rods 45 are respectively installed in the middle of the upper and lower ends outside the second mounting frame 42. The telescopic ends of the third electric telescopic rods 45 extend into the inside of the second mounting frame 42. The third electric telescopic rods 45 are electrically connected to the AGV robot 31 and are controlled by the internal control module of the AGV robot 31. The third electric telescopic rods 45 can drive the clamping seat 46 to move inside and outside through their own elongation and shortening; the number of the clamping seats 46 is two. The two clamping seats 46 are respectively arranged inside the upper and lower groups of plug rods 44, and the telescopic ends of the two third electric telescopic rods 45 are respectively connected to the outer sides of the upper and lower clamping seats 46; the belt cover 47 is installed at the left end inside the mounting bracket 41, and the left side of the axis of the second mounting frame 42 extends into the bottom of the inner cavity of the belt cover 47; the first motor 48 is installed at the top of the left end outside the belt cover 47. The rotating end of the first motor 48 extends into the inner cavity of the belt cover 47. The first motor 48 is electrically connected to the AGV robot 31 and is controlled by the internal control module of the AGV robot 31. The first motor 48 can drive the pulley at one end of the transmission belt 49 to rotate clockwise or counterclockwise; the axis of the pulley at one end of the transmission belt 49 is connected to the right side of the rotating end of the first motor 48, and the axis of the pulley at the other end of the transmission belt 49 is connected to the left end of the axis of the second mounting frame 42. The pulley at one end of the transmission belt 49 can play a role in transmitting between the second mounting frame 42 and the first motor 48.

[0033] The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process. The specific work is as follows:

[0034] Step 1: The staff places the fixing bolts inside the four magnetic screw sleeves 415 and fixes them magnetically inside the magnetic screw sleeves 415. The staff controls the main console 1 to start the AGV robot 31. The preset program inside the AGV robot 31 runs and controls the first motor 48, the robotic arm 32 and the third electric telescopic rod 45 to start. The AGV robot 31 moves to the sampling position of the angle of attack sensor workpiece 28 in the production line. The first motor 48 drives the second mounting frame 42 to rotate to the horizontal direction inside the mounting frame 41 under the drive of the transmission belt 49. The robotic arm 32 drives The second mounting frame 42 in the dynamic grasping mounting component 4 moves to the outside of the angle of attack sensor workpiece 28, and the third electric telescopic rods 45 on both sides extend to drive the clamping seats 46 at the corresponding positions to move inward under the limiting action of the insertion rods 44. The first motors 48 on both sides clamp and fix the front and rear sides of the top of the angle of attack sensor workpiece 28. The first motors 48 drive the second mounting frame 42 to flip to a vertical state under the drive belt 49, so that the second mounting frame 42 drives the inner angle of attack sensor workpiece 28 to flip from a vertical position to a horizontal position, and the AGV robot 31 moves to the front side of the vacuum box 21.

[0035] Step 2: The staff controls the main control console 1 to start the electric sealing door 22, the first electric telescopic rod 26, the second electric telescopic rod 220, the linear motor 224 and the clamping module 225. The electric sealing door 22 opens to release the seal on the top of the inner cavity of the vacuum box 21. The first electric telescopic rods 26 on the four sides extend to drive the movable partition 25 to move upward along the inner side of the fixed partition 23 out of the inner cavity of the vacuum box 21. The robot arm 32 drives the grabbing installation component 4 to insert the tail of the angle of attack sensor workpiece 28 into the installation component 2 7 cavity, the second electric telescopic rod 220 extends to drive the sleeve seat 219 to move downward along the guide rail frame 218, so that the sleeve seat 219 drives the first mounting frame 221 to align the front clamping module 225 with the tail position of the angle of attack sensor workpiece 28, and the linear motor 224 drives the moving frame 223 to move forward inside the first slot seat 222, so that the clamping module 225 moves to the outer side of the tail of the angle of attack sensor workpiece 28, and the clamping module 225 clamps and fixes the tail of the angle of attack sensor workpiece 28. The third electric telescopic rods 45 on the upper and lower sides are shortened to drive the clamping seat 46 to return to the starting position. The preset program inside the AGV robot 31 controls the fourth electric telescopic rod 413 and the second motor 416 to start. The fourth electric telescopic rod 413 extends to drive the circular housing 412 to move backward, so that the four side fixing bolts of the magnetic screw sleeve 415 pass through the internal fixing screw holes of the angle of attack sensor workpiece 28 and the mounting component 27 in sequence. The second motor 416 drives the driving gear 417 to rotate, so that the four side driven gears 414 synchronously drive the magnetic screw sleeve 415 to rotate under the action of the rotational force of the driving gear 417, so that the four side magnetic screw sleeves 415 lock the internal fixing bolts to the inside of the angle of attack sensor workpiece 28 and the mounting component 27. The fourth electric telescopic rod 413 shortens to drive the circular housing 412 to return to the initial position. The first electric telescopic rod 26 shortens to drive the movable partition 25 to descend along the inner side of the fixed partition 23 to the inner cavity of the vacuum box 21. The electrically controlled sealing door 22 is closed to re-seal the inner cavity of the vacuum box 21.

[0036] Step 3: The staff controls the main console 1 to start the vacuum chamber 21, the gas source unit 5, the helium mass spectrometer leak detector 24, the rotation module 29, the double-ended electric telescopic rod 210, and the micro motor 214. The vacuum chamber 21 discharges its interior to a vacuum negative pressure state. The gas source unit 5 fills the interior of the vacuum chamber 21 with helium gas at a certain pressure and flow rate in the space in front of the left and right fixed partitions 23. The helium mass spectrometer leak detector 24 detects whether helium gas leaks from the angle-of-attack sensor workpiece 28 to the space position behind the left and right fixed partitions 23. If helium gas leakage is detected, the helium mass spectrometer leak detector 24 sends a corresponding alarm signal to the main console 1. During the detection process, the rotation module 29 drives the double-ended electric telescopic rod 210 to rotate to a vertical state. The double-ended electric telescopic rod 210 shortens to drive the upper and lower first mounting seats 211 to move the toggle rod 212 inward to the positions on the upper and lower sides of the blades of the angle-of-attack sensor workpiece 28. The upper and lower micro motors 214 drive the rotating rods 215 at the corresponding positions to rotate intermittently in the clockwise or counterclockwise direction, so that the upper and lower rotating rods 215 drive one end of the connecting rod 216 at the corresponding position to move inward or outward intermittently. Then, with the cooperation of the upper and lower connecting rods 216, the toggle rod 212 is driven to swing inward or outward inside the first mounting seat 211. The upper and lower toggle rods 212 toggle the blades of the angle-of-attack sensor workpiece 28 to make them swing, thereby simulating the working state of the angle-of-attack sensor workpiece 28.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the sealing performance of aircraft sensors, characterized in that: include: Main console (1); A simulation detection mechanism (2) is arranged on the left side of the main control console (1), and the simulation detection mechanism (2) is capable of automatically detecting the sealing performance of an aircraft sensor workpiece; A sample extraction and installation mechanism (3) is arranged on the front side of the exterior of the simulation detection mechanism (2), and the sample extraction and installation mechanism (3) is capable of sampling aircraft sensor workpieces processed on the assembly line and installing the aircraft sensor workpieces inside the simulation detection mechanism (2); An air source unit (5) is arranged on the left side of the simulation detection mechanism (2), and the air source unit (5) is electrically connected to the main control console (1); The simulation detection mechanism (2) comprises: a vacuum box (21), a mounting member (27) and an angle of attack sensor workpiece (28); the vacuum box (21) is mounted on the left side of the main control console (1); the vacuum box (21) and the air source unit (5) are connected via a pipeline; the vacuum box (21) and the main control console (1) are electrically connected; the angle of attack sensor workpiece (28) is detachably mounted inside the mounting member (27); and a simulation detection component is provided in front of the vacuum box (21); The simulation detection component includes: A rotation module (29) is installed on the inner front side of the vacuum box (21), and the rotation module (29) is electrically connected to the main control console (1); A double-ended electric telescopic rod (210) is installed on the rear side of the rotating end of the rotating module (29), and the double-ended electric telescopic rod (210) is electrically connected to the main control console (1); A first mounting seat (211), wherein the number of the first mounting seats (211) is two, and the two first mounting seats (211) are respectively mounted on the outside of the upper and lower telescopic ends of the double-end electric telescopic rod (210); A toggle rod (212), wherein the number of the toggle rods (212) is two, and the two toggle rods (212) are rotatably connected to the inner sides of the upper and lower first mounting seats (211) respectively via a rotating shaft; A fixing seat (213), wherein the number of the fixing seats (213) is two, and the two fixing seats (213) are respectively mounted on the right inner ends of the upper and lower first mounting seats (211); A micro motor (214), wherein the number of the micro motors (214) is two, and the two micro motors (214) are respectively mounted on the rear sides of the upper and lower fixing seats (213), and the micro motors (214) are electrically connected to the main control console (1); Rotating rods (215), the number of the rotating rods (215) is two, and one end of the two rotating rods (215) is respectively mounted on the left side of the rotating ends of the upper and lower micro motors (214); The connecting rod (216) is provided in two numbers. One end of each of the two connecting rods (216) is rotatably connected to the front end of the right side of the upper and lower toggle rods (212) via a rotating shaft, and the right side of the other end of each of the two connecting rods (216) is rotatably connected to the other end of each of the upper and lower rotating rods (215) via a rotating shaft.

2. The device for testing the sealing performance of aircraft sensors according to claim 1, characterized in that: The simulation detection mechanism (2) further includes: An electrically controlled sealing door (22) is installed at the top opening of the vacuum box (21), and the electrically controlled sealing door (22) is electrically connected to the main control console (1); A fixed partition (23), wherein the number of the fixed partitions (23) is two, and the two fixed partitions (23) are respectively installed in the middle of the left and right sides of the interior of the vacuum box (21) along the up and down directions; A helium mass spectrometer leak detector (24) is installed at the bottom end of the rear side of the vacuum box (21), and the helium mass spectrometer leak detector (24) is electrically connected to the main console (1); A movable partition (25) is inserted into the inner sides of the two left and right fixed partitions (23) in the up-down direction, and a mounting member (27) is embedded in the middle of the movable partition (25); A first electric telescopic rod (26), the number of the first electric telescopic rods (26) is four, the four first electric telescopic rods (26) are respectively installed in the inner bottom end of the vacuum box (21) along the up and down directions and are located on the front and back sides of the movable partition (25), the telescopic ends of the four first electric telescopic rods (26) are respectively connected to the left and right sides of the top ends of the front sides of the movable partition (25), and the first electric telescopic rods (26) are electrically connected to the main control console (1).

3. The device for testing the sealing performance of aircraft sensors according to claim 2, characterized in that: An auxiliary mounting component is provided on the rear side of the movable partition (25).

4. The device for testing the sealing performance of aircraft sensors according to claim 3, characterized in that: The sample extraction and installation mechanism (3) comprises: An AGV robot (31) is arranged on the front side of the outside of the vacuum box (21), and the AGV robot (31) can be remotely connected to the main control console (1) via a network; A mechanical arm (32) is mounted on top of the AGV robot (31), and the mechanical arm (32) and the AGV robot (31) are electrically connected; The grabbing and mounting component (4) is mounted on the bottom of the end execution part of the mechanical arm (32).

5. The device for testing the sealing performance of aircraft sensors according to claim 4, characterized in that: The grabbing and mounting component (4) comprises: A mounting frame (41) fixedly mounted on the bottom of the end execution portion of the robotic arm (32); A second mounting seat (410) mounted on the front side of the mounting frame (41); A limiting assembly (411) is mounted on the bottom of the second mounting seat (410) along the front-to-back direction; A circular housing (412) is mounted on the bottom of the limiting end of the limiting component (411); a fourth electric telescopic rod (413) mounted on the front side of the second mounting seat (410), a telescopic end of the fourth electric telescopic rod (413) passing through the second mounting seat (410) and connected to the front top of the circular housing (412), and the fourth electric telescopic rod (413) and the AGV robot (31) being electrically connected; Driven gears (414), the number of the driven gears (414) being four, and the four driven gears (414) being rotatably connected to the rear end of the inner cavity of the circular housing (412) via bearings at 90-degree intervals along the circumferential direction; A magnetic screw sleeve (415), wherein the number of the magnetic screw sleeves (415) is four, and the four magnetic screw sleeves (415) are rotatably connected to the outer rear end of the circular housing (412) via a rotating shaft at 90-degree intervals along the circumferential direction, and the axes of the four magnetic screw sleeves (415) extend into the inner cavity of the circular housing (412) and are connected to the axes of four driven gears (414); A second motor (416) is mounted on the front end of the circular housing (412), a rotating end of the second motor (416) extends into the inner cavity of the circular housing (412), and the second motor (416) is electrically connected to the AGV robot (31); The driving gear (417) is fixedly mounted on the rear side of the rotating end of the second motor (416), and the outer side of the driving gear (417) is meshed with the four driven gears (414).

6. The device for testing the sealing performance of aircraft sensors according to claim 5, characterized in that: A workpiece grabbing unit is provided on the inner side of the mounting frame (41).

7. The device for testing the sealing performance of aircraft sensors according to claim 6, characterized in that: The magnetic screw sleeve (415) is made of magnetic material and can magnetically absorb the fixing bolt.

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