CN212047947U - Automatic testing device for airborne fire control system - Google Patents

Abstract

The utility model discloses an airborne fire control system automatic testing device, which comprises a testing rotary table and an automatic testing system, wherein the testing rotary table comprises a supporting mechanism and a rotating mechanism arranged on the supporting mechanism, the automatic testing system is arranged on the rotating mechanism, and the rotating mechanism and the automatic testing system are driven to rotate by a rotary driving mechanism arranged on the supporting mechanism, so that the turning angle speed of an airplane is simulated, after an electric conduction circuit formed by an electric brush and a conducting ring of the automatic testing system is powered, corresponding parameters of an airborne fire control system are obtained, and the qualification judgment is carried out on a measuring result; through controlling test revolving stage pivoted to open and stop, drive the rotation of airborne fire control system, simulation aircraft turn angle speed finally obtains the corresponding parameter of airborne fire control system by automatic test system to carry out the qualification to the measuring result and judge, realize testing airborne fire control system's dynamic behavior and static performance, alone can accomplish the detection to airborne fire control system, the material resources of using manpower sparingly.

Description

Automatic testing device for airborne fire control system

The technical field is as follows:

the utility model relates to an airborne fire control system test field especially relates to an airborne fire control system automatic testing device.

Background art:

the airborne fire control system is used for calculating a fire control formula, outputting aiming symbols and controlling an aiming process, the performance of the airborne fire control system directly influences the aiming precision of a fighter plane and the fighting efficiency of the fighter plane, and therefore the performance of the airborne fire control system must be periodically detected out of position.

When the off-position detection is carried out on the airborne fire control system, the airborne fire control system needs to be installed on a detection frame for detection, then various parameters of the airborne fire control system are collected and comprehensively judged, and the off-position detection of the airborne fire control system is completed; among the prior art, personnel need adopt multiple instrument to carry out artifical the collection to machine carries fire control system in proper order, then synthesize the judgement after inputting the industrial computer, need a plurality of personnel to accomplish detection operation in coordination, simultaneously, current test stand that carries out fixing to machine carries fire control system is fixed knot structure, can not simulate machine carries fire control system's operational environment, has reduced the accuracy that detects, consequently, current simple fixed test stand can not satisfy the detection demand.

The utility model has the following contents:

this novel technical problem that will solve is: the automatic test device for the airborne fire control system overcomes the defects of the prior art, drives the airborne fire control system to rotate by controlling the test rotary table to start and stop, simulates the turning angle speed of the airplane, finally obtains corresponding parameters of the airborne fire control system through the automatic test system, judges the qualification of the measurement result, and tests the dynamic performance and the static performance of the airborne fire control system.

This neotype technical scheme is: the utility model provides an airborne fire control system automatic testing device, is in including test revolving stage and setting automatic test system on the test revolving stage, characterized by: the test turntable comprises a supporting mechanism and a rotating mechanism arranged on the supporting mechanism, the automatic test system is arranged on the rotating mechanism, the rotating mechanism and the automatic test system are driven to rotate by a rotary driving mechanism arranged on the supporting mechanism, the turning angle speed of the airplane is simulated, after the automatic test system is powered by a conductive circuit formed by an electric brush and a conductive ring, corresponding parameters of the airborne fire control system are obtained, the qualification judgment is carried out on the measurement result, and the test on the dynamic performance and the static performance of the airborne fire control system is completed;

the automatic test system comprises an industrial personal computer, an excitation box, a measurement box and a color camera which are connected with each other,

an industrial personal computer: running test software, providing a test human-computer interaction interface, controlling the excitation box to automatically output various excitation signals required by the tested equipment, controlling the measurement box to automatically test various functions and performance parameters of the tested equipment, and automatically judging the qualification of the test result;

an excitation box: outputting various excitation signals required by the tested equipment and carrying out rotation control on the rotating mechanism;

a measuring box: measuring the function and performance parameters of the tested equipment;

color camera: a blended image of the sight ring and the scale marks is taken from the optical barrel.

Furthermore, the supporting mechanism comprises a chassis, a support column and a support column fixing device, the chassis is a circular steel plate, one end of the support column is fixed at the circle center of the circular steel plate of the base through the support column fixing device, and the rotating mechanism is supported after the conducting ring is sleeved at the other end of the support column.

Furthermore, the rotating mechanism comprises a rotating table board, a rotating cylinder and a seat, the upper part of the rotating cylinder is fixedly connected with the rotating table board, the lower part of the rotating cylinder is sleeved on the support of the supporting mechanism and is connected with a second worm gear through a second worm gear connecting steel plate connected with the rotating cylinder, and the second worm gear rotates on the support fixing device of the supporting mechanism through a two-plane worm gear bearing.

Furthermore, a rotating cylinder bearing and the electric brush are sleeved between the rotating cylinder and the supporting column, a steel beam is welded in the middle of the rotating cylinder, and the seat is arranged on the steel beam through bolts.

Furthermore, the rotary table top is a circular plywood, the upper surface of the rotary table top is provided with a tested device, an industrial personal computer and a color camera mounting hole, and the lower surface of the rotary table top is provided with a rotary cylinder, an excitation box and a measurement box mounting hole.

Furthermore, a conical cylindrical fixing frame is arranged on the mounting hole of the industrial personal computer, the industrial personal computer is fixedly arranged at the top of the fixing frame, an optical cylinder and a rotating shaft are arranged in the middle of the fixing frame, a tested device is arranged at one end of the rotating shaft, the other end of the rotating shaft is rotatably connected with the inside of the fixing frame, a rotating mechanism comprises a worm wheel and a worm which are matched with each other to rotate, the worm wheel is sleeved on the rotating shaft, the worm is arranged in the fixing frame through a worm bearing, and one end of the worm is connected with a worm operating; the worm wheel is provided with a stop hole, a stop pin penetrating through the fixing frame and connected with the stop hand wheel is movably arranged in the stop hole, and the rotating shaft is installed in the fixing frame through a rotating bearing.

Furthermore, the rotary driving mechanism comprises an electric motor, a control mechanism, a gearbox and two groups of worm gears, the electric motor is started, stopped and rotated positively and negatively under the action of the control mechanism and is connected with the gearbox through the first group of worm gears, and the gearbox is linked with a worm gear II in the rotary mechanism through the second group of worm gears to drive the rotary mechanism to rotate.

Furthermore, the industrial personal computer comprises an industrial computer, and a DIO module, a bus module, an A/D module, a D/A module and a video acquisition module which are arranged in the industrial computer; the DIO module is used for outputting discrete magnitude signals and controlling corresponding circuits in the excitation box and the measurement box to work; the bus module is used for simulating other airborne equipment to exchange information with the airborne fire control system; the A/D module is used for acquiring continuously changed analog signals sent by the equipment to be tested, the rotating speed sensor and the like; the D/A module is used for outputting analog voltage to the excitation box; the video acquisition module is used for acquiring the video of the color camera and automatically testing the aiming ring angle of the fire control system.

Furthermore, the excitation box comprises a motor start-stop relay circuit, a motor reversing circuit, a switch signal simulation circuit, an alternating current/direct current power supply module, a load module and an excitation signal switch module which are controlled by discrete signals output by the DIO module; the motor starting and stopping relay circuit and the motor reversing circuit are used for controlling the rotation of the motor; the switch signal simulation circuit is used for simulating the switch action during single-piece testing; the alternating current and direct current power supply module is used for outputting various power supply signals required by the tested equipment; the load module is used for simulating load parameters required by the tested equipment; the excitation signal switch matrix is used for controlling the output and disconnection of the excitation signal; and the operational amplifier circuit in the excitation box is used for amplifying the analog voltage, analog distance and height continuous change signals from the D/A module.

Furthermore, the measuring box comprises an intelligent instrument, a signal conditioning circuit and a measuring signal switch matrix; the intelligent instrument is used for automatically testing various measuring signals of the tested equipment; the signal conditioning circuit is used for conditioning signals from the tested equipment and the rotating speed sensor so that the signals meet the measurement requirements of the A/D module; the measurement signal switch matrix is used for orderly connecting each measured signal to an input channel of a meter pen or an A/D module of the intelligent instrument.

This neotype beneficial effect is:

1. this is novel through control test revolving stage pivoted open and stop, drives the machine and carries fire control system and rotate, and simulation aircraft turning angle speed finally obtains the corresponding parameter of machine carrying fire control system by automatic test system to carry out the qualification judgement to the measuring result, realize testing the dynamic behavior and the static performance of machine carrying fire control system, alone can accomplish the detection to machine carrying fire control system, the material resources of using manpower sparingly.

2. This novel chassis is a circular steel sheet, and the pillar passes through pillar fixing device to be fixed in circular steel sheet centre of a circle position, guarantees the stability that the chassis supported, prevents to topple over because of the chassis supports the shakiness in the use, causes personnel, machine to carry fire control system and automated inspection system's damage.

3. This novel rotatory cylinder cover supports through rotatory rotary drum bearing between and on the pillar, guarantees rotatory section of thick bamboo pivoted stability on the pillar, and the fixed rotatory mesa that is provided with the mounting hole in pillar top is convenient for carry out fixed mounting to automatic testing system and machine year movable system, guarantees the stability of installation, when preventing that rotatory mesa from rotating, automatic testing system and machine carries dropping of fire control system.

4. This is novel through the cover wire ring on the pillar and the brush of setting in rotatory section of thick bamboo form conducting circuit, realizes supplying power to automatic test system and the machine-carried moving system who installs on rotatory mesa, and when the brush was rotatory along with rotatory section of thick bamboo, the brush can contact with the conducting ring constantly, guarantees the stability of supplying power.

5. This novel rotatory bobbin base portion is connected with second worm wheel through second connection steel sheet of worm wheel, and the worm wheel cover sets up on pillar fixing device through the two planar bearing of worm wheel on the pillar, when realizing supporting rotatory bobbin and rotatory mesa, still guarantees its rotatory stability.

6. This novel welding of rotatory section of thick bamboo middle part has the girder steel, installs the seat through the bolt for the tester takes, when rotatory mesa drives automatic test system and machine carries fire control system and rotates, realizes operating personnel's together rotation, and the personnel of being convenient for carry out the testing operation.

7. This novel control mechanism realizes opening of motor and stops, steering control and rotational speed measurement to realize testing revolving stage simulation aircraft 12 kinds of turn angle speed through 6 gears gearboxes, be convenient for carry out accurate detection to machine carries fire control system.

8. This is novel to drive the worm through worm operating handle and rotate, and the worm drives the worm wheel and rotates, and the worm wheel cover is in the axis of rotation to realize that the axis of rotation drives the equipment under test who connects and rotates, realize the adjustment to equipment under test angle, the use installation angle of simulation machine carries fire control system, still through the optical tube who installs, reads the aiming ring angle of machine year fire control system output, improves and detects the precision.

9. Be provided with the locking hole on this novel worm wheel, insert the locking hole or extract from the braking hole through locking hand wheel operation stop pin, realize fixed spacing to the worm wheel, prevent that mounting bracket two from rotating in the detection, the influence detects the precision.

10. This novel machine carries fire control system automatic testing device adopts general design technique, can test multiple machine and carry fire control system, can carry out the single test, also can carry out integrated test of integrated system.

11. This is novel to angle signal measurement, therefore, this system adopts image recognition's method to aim angle measurement, has both improved the measuring accuracy, has improved efficiency of software testing again, has solved among the current method, reads the aiming ring angle through the people earlier, and the angle data manual input that will read again to test system causes to interpret the error big, the problem of inefficiency.

12. This novel high-speed color camera of adoption can measure at a high speed and aim ring angle from the mixed image of aiming ring and scale mark that the optical cylinder shot, can also monitor the difficult aiming ring trouble of beating that is observed by the human eye.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present application.

Fig. 2 is a schematic structural diagram of the support mechanism.

Fig. 3 is a schematic structural view of the rotating mechanism.

Fig. 4 is a schematic structural view of the rotation driving mechanism.

Fig. 5 is a schematic structural view of the rotating mechanism.

Fig. 6 is a schematic structural view of the optical cylinder.

Fig. 7 is a schematic structural view of the fixing frame.

Fig. 8 is a top view of the rotating table.

Fig. 9 is a lower view of the rotary table.

Fig. 10 shows a motor control circuit.

FIG. 11 is a block diagram of an automatic test system connection.

Fig. 12 is a schematic view of automatic measurement of the aiming ring angle.

The specific implementation mode is as follows:

example (b): see fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, and fig. 12; in the figure, 1-supporting mechanism, 2-rotating mechanism, 3-rotating driving mechanism, 4-electric brush, 5-conducting ring, 6-industrial control computer, 7-excitation box, 8-measuring box, 9-color camera, 10-fixing frame, 11-transmission shaft, 12-optical cylinder, 13-worm, 14-worm bearing, 15-worm operating handle, 16-stop hole, 17-stop hand wheel, 18-stop pin, 19-rotating bearing and 20-worm wheel;

1 a-chassis, 1 b-pillar, 1 c-pillar fixing device;

2 a-a rotary table surface, 2 b-a rotary drum, 2 c-a seat, 2 d-a rotary drum bearing, 2 e-a test table connecting steel plate, 2 f-a steel beam, 2 g-a seat, 2 h-a worm gear connecting steel plate and 2 i-a worm gear two-plane bearing;

the system comprises a 3 a-motor, a 3 b-gearbox, a 3 c-worm gear mechanism, a 3 d-start-stop control switch, a 3e-DIO module, a 3 f-motor start-stop relay circuit, a 3 g-motor steering relay circuit, a 3 h-gear handle, a 3b 1-input shaft and a 3b 2-output shaft;

12 a-socket, 12 b-bulb, 12 c-dial, 12 d-lens group, 12 e-optical cylinder mounting hole;

6 a-an industrial computer, 6 b-a bus module, 6c-A/D module, 6D-D/A module, 6 e-a video acquisition module and 6 f-a speed sensor;

7 a-a motor reversing circuit, 7 b-a switching signal simulation circuit, 7 c-an operational amplifier circuit, 7 d-an alternating current and direct current power supply module, 7 e-a load module and 7 f-an excitation signal switch matrix;

8 a-an intelligent instrument, 8 b-a signal conditioning circuit and 8 c-a measurement signal switch matrix;

the device comprises an A-tested device I, a B-tested device II, a C-tested device III, a D-tested device IV, an E-tested device V, an F-tested device VI, a G-tested device VII, an H-aiming ring, an I-scale center, a J-scale and a K-wire hole.

The application discloses an automatic testing device of an airborne fire control system, which comprises a testing rotary table and an automatic testing system arranged on the testing rotary table, wherein the testing rotary table comprises a supporting mechanism 1 and a rotating mechanism 2 arranged on the supporting mechanism 1, the automatic testing system is arranged on the rotating mechanism 2, the rotating mechanism 2 and the automatic testing system are driven to rotate by a rotary driving mechanism 3 arranged on the supporting mechanism 1, the turning angle speed of an airplane is simulated, after power is supplied to a conducting circuit formed by an electric brush 4 and a conducting ring 5 of the automatic testing system, corresponding parameters of the airborne fire control system are obtained, the qualification judgment is carried out on the measuring result, and the testing on the dynamic performance and the static performance of the airborne fire control system is completed;

the automatic test system comprises an industrial personal computer 6, an excitation box 7, a measurement box 8 and a color camera 9 which are connected with each other;

an industrial personal computer 6: running test software, providing a test human-computer interaction interface, controlling the excitation box 7 to automatically output various excitation signals required by the tested equipment, controlling the measurement box 8 to automatically test various functions and performance parameters of the tested equipment, and automatically judging the qualification of the test result;

excitation box 7: various excitation signals required by the tested equipment are output, and the rotation control of the rotating mechanism 2 is carried out;

measurement box 8: measuring the function and performance parameters of the tested equipment;

the color camera 9: capturing a blended image of the sight ring and the scale marks from the optical barrel 12;

through controlling test revolving stage pivoted to open and stop, drive the rotation of airborne fire control system, simulation aircraft turn angle speed finally obtains the corresponding parameter of airborne fire control system by automatic test system to carry out the qualification to the measuring result and judge, realize testing airborne fire control system's dynamic behavior and static performance, alone can accomplish the detection to airborne fire control system, the material resources of using manpower sparingly.

The present application will be described in detail below with reference to examples and the accompanying drawings.

The test turntable has the functions of installation and simulation of the turning angle speed of the fighter plane and mainly comprises a supporting mechanism 1, a rotating mechanism 2 and a rotary driving mechanism 3.

a. Supporting mechanism

The supporting mechanism 1 is used for stabilizing and supporting the testing rotary table and preventing the testing rotary table from toppling over and comprises a chassis 1a, a support 1b, a support fixing device 1c, a power plug, a connecting circuit and other component mounting hole positions.

The chassis 1a is a round steel plate which is a stable balance weight of the whole testing turntable and is contacted with the ground, and a mounting hole for fixing the rotary driving mechanism 3 is also reserved on the chassis 1 a.

The pillar 1b is a supporting mechanism of the rotary test table, and is fixed at the center of the circle of the chassis 1a by a pillar fixing device 1 c.

The power plug is connected with the chassis 1a, and a three-phase power supply is used for supplying power to the whole system.

The conductive ring 5 is mounted on the upper portion of the support 1b and connected to the brush 4 on the inner wall of the rotating cylinder 2b of the rotating mechanism 2 for switching power signals between the chassis 1a and the rotating mechanism 2.

b. Rotating mechanism

The rotating mechanism 2 is used for mounting an automatic test system, a mounting bracket, and the like, and can rotate around the column 1b of the support mechanism 1 to simulate the aircraft turning angle speed. The swivel mechanism 2 includes a swivel table 2a, a swivel cylinder 2b, and a seat 2 c.

(a) The rotary table top 2a is a circular plywood, and mounting holes for tested equipment 1-7 and a color camera 9 are reserved on the upper surface of the rotary table top; the lower surface is provided with a mounting hole of the rotary cylinder 2b and mounting holes of an excitation box 7 and a measurement box 8 of the automatic test system.

(b) The rotary cylinder 2b is used to realize the rotation of the rotary table top 2a around the pillar 1b of the support mechanism 1, simulating the turning acceleration of the airplane. The rotary cylinder 2b is a steel cylinder, which is sleeved outside the pillar 1b of the supporting mechanism 1, and a rotary cylinder bearing 2d is respectively arranged at the upper and lower parts and connected with the pillar 1b, and can rotate around the pillar 1 b. A circular test bench connecting steel plate 2e is welded at the upper part of the rotary cylinder 2b and is connected with the rotary table board 2a through bolts to drive the rotary table board 2a to rotate; the middle part is welded with a steel beam 2f, and a seat 2g is installed through bolts and used for a tester to sit; the lower part is welded with a second worm wheel connecting steel plate 2h, the second worm wheel connecting steel plate is connected with a second worm wheel of the rotary driving mechanism 3 through a bolt and rotates under the driving of the second worm wheel (a worm and gear mechanism 3 c), the second worm wheel sleeve is arranged on the support column 1b and is arranged on the support column fixing device 1c through a two-plane worm wheel bearing 2i, and the rotary stability of the rotary cylinder 2b and the rotary table top 2a is guaranteed while the rotary cylinder 2b and the rotary table top 2a are supported. .

(c) The electric brush 4 is connected with the conducting ring 5 of the supporting mechanism 1 and is used for continuously connecting the three-phase alternating current from the supporting mechanism 1 to the rotary table top 2a when the rotating mechanism 2 rotates around the supporting column of the supporting mechanism 1, so as to be used by an automatic testing system and a tested device; meanwhile, a speed measuring sensor signal from the rotary driving mechanism 3 is transferred to an automatic test system for the test of the automatic test system.

c. Rotary driving mechanism

The rotary driving mechanism 3 is used for driving the rotary mechanism 2 to rotate around the support column 1b of the supporting mechanism 1, and simulating the aircraft turning angular speed. The rotation driving mechanism 3 mainly comprises a motor 3a, a control mechanism, a gearbox 3b, a worm and gear mechanism 3c and the like.

(a) The motor 3a adopts a three-phase asynchronous motor with the power of 0.8 kilowatt.

(b) The control mechanism is composed of a start-stop control switch 3d and a motor control circuit, and is mainly used for realizing start-stop, steering control and rotating speed measurement of the motor 3 a. The start-stop control switch 3d is mounted on the chassis 1a of the support mechanism 1 and used for switching on and off of the motor circuit.

When starting the test, the start-stop control switch 3d is arranged at the 'on' position, and the motor circuit is switched on; when the test is finished or the test needs to be interrupted, the start-stop control switch 3d is placed at the off position, and the motor circuit is switched on. The motor control circuit is used for outputting and cutting off a motor power supply and controlling the reversing of the motor power supply and mainly comprises an industrial personal computer 6, a DIO module 3e, a motor start-stop relay circuit 3f, a motor steering relay circuit 3g, an electric brush 4, a conducting ring 5 and connecting wires.

When the automatic testing device works, 3 signal wires of a power supply of 380V and 50Hz from a plug of the supporting mechanism 1 are connected to the conducting ring 5 of the support column 1a of the supporting mechanism 1, and are connected to a motor steering relay circuit 3g in the automatic testing system through the electric brush 4 on the inner wall of the rotary cylinder 2b of the rotary testing table; next, the industrial personal computer 6 automatically outputs a discrete control signal to the motor steering relay circuit 3g through the DIO module 3e according to the motor steering parameter specified by the test program, and switches on a corresponding relay to realize the switching of the motor steering circuit; finally, the industrial personal computer 6 automatically outputs discrete control signals to the motor start-stop control relay circuit 3f through the DIO module 3e, the start-stop relay is switched on, a power supply of 380V and 50Hz is sent to a motor coil, and the motor 3a starts to rotate. After the test is finished, the industrial personal computer 6 automatically outputs discrete control signals to the motor start-stop control relay circuit through the DIO module 3e, the start-stop relay is closed, the power supply of the motor is cut off, and the motor 3a stops rotating. If the motor control circuit is abnormal, the power supply of the motor 3a can be cut off through the start-stop control switch 3 d.

(c) The gearbox 3b is used to set the rotational speed of the rotary table top 2 a. The gearbox 3b has 6 gears and is controlled by a gear handle 3 h. Because the motor 3a can rotate in the forward and reverse directions, the test turntable can simulate 12 turning angular speeds.

(d) The worm gear mechanism 3c is used for changing the transmission ratio and the transmission direction. The test turntable is provided with two sets of worm and gear mechanisms, one set (a worm gear I) is connected with the motor 3a, and the other set (a worm gear II) is connected with the rotary cylinder 2b of the rotary mechanism 2.

When the airplane rotation angle simulation device works, the rotation speed of the motor 3a is reduced through a group of worm gears (a worm wheel I) and then transmitted to the input shaft 3b1 of the gearbox 3b, is output through the output shaft 3b2 of the gearbox 3b after being controlled by the gear of the gearbox 3b, is transmitted to the rotary cylinder 2b of the rotary mechanism 2 through a set of worm gears (a worm wheel II), drives the rotary cylinder 2b to rotate, and then drives the rotary table surface 2a through the rotary cylinder 2b to simulate airplane rotation angle speed.

d. Fixing frame

Seven tested devices are arranged on the rotary table top 2 a; wherein, a equipment under test and industrial computer 6 pass through mount 10 and install on rotatory mesa 2a, and mount 10 is the supporting mechanism of a equipment under test and industrial computer 6 mounting bracket, and its bottom links to each other with rotatory mesa 2a through four bolts, and well lower part passes through transmission shaft 11 and a equipment under test and links to each other, and well upper portion installs optical cylinder 12 through two screws, and the industrial computer 6 is installed through four screws at the top.

One end of the rotating shaft 11 is provided with a tested device, the other end of the rotating shaft 11 is connected with a rotating mechanism in the fixed frame 10, the rotating mechanism comprises a worm wheel 20 and a worm 13 which are matched with each other to rotate, the worm wheel 20 is sleeved on the rotating shaft 11, the worm 13 is installed in the fixed frame 10 through a worm bearing 14, and one end of the worm 13 penetrates through the fixed frame 10 and then is connected with a worm operating handle 15; the worm wheel 20 is provided with a stop hole 16, a stop pin 18 penetrating the fixed frame 10 and connected with a stop hand wheel 17 is movably arranged in the stop hole 16, and the rotating shaft 11 is arranged in the fixed frame 10 through a rotating bearing 19.

e. Optical tube

The optical cylinder 12 is used for displaying angle scales and is installed on the fixed frame 10 through an optical cylinder installation hole 12e, during testing, the industrial personal computer 6 controls the excitation box 7 to output 220V alternating current power, the alternating current power is sent to the bulb 12b through a socket 12a of the optical cylinder 12, the bulb 12b emits light, the dial 12c is circular optical glass, transversely and vertically staggered scale marks are drawn on the dial and installed on a focal plane of the lens group 12d, light of the bulb 12b irradiates the dial 12c, and clear scale images are formed after being processed by the lens group 12d and are used for reading the aiming ring angle output by the equipment to be tested on the fixed frame 10.

The automatic test system is used for completing off-position automatic test of the performance of the airborne fire control system and comprises an industrial personal computer 6, an excitation box 7, a measurement box 8 and a color camera 9.

The industrial personal computer 6 is a control core of the system testing system, runs testing software, provides a testing human-computer interaction interface, controls the excitation box 7 to automatically output various excitation signals required by the tested equipment, controls the measurement box 8 to automatically test various functions and performance parameters of the tested equipment, and automatically judges the qualification of the test result. The industrial personal computer 6 mainly comprises an industrial computer 6a, a DIO module 3e, a bus module 6b, an A/D module 6c, a D/A module 6D and a video acquisition module 6e which are arranged in the computer.

The DIO module 3e is used for outputting discrete quantity signals and controlling corresponding circuits in the excitation box 7 and the measurement box 8 to work.

The bus module 6b is used for simulating other onboard equipment to exchange information with the onboard fire control system.

The A/D module 6c is used for collecting continuously changing analog signals sent by the tested equipment, the rotating speed sensor 6f and the like.

The D/a module 6D is used to output an analog voltage to the excitation tank 7.

The video acquisition module 6e is used for acquiring videos of the color camera 9 and automatically testing the angle of the aiming ring of the airborne fire control system.

The excitation box 7 is used for outputting various excitation signals required by the tested equipment and performing rotation control on the rotating mechanism 2, and comprises a motor start-stop relay circuit 3f, a motor reversing circuit 7a, a switch signal analog circuit 7b, an operational amplifier circuit 7c, an alternating current/direct current power supply module 7d, a load module 7e and an excitation signal switch matrix 7 f.

The motor start-stop relay circuit 3f and the motor commutation circuit 7a are used for motor rotation control.

The switch signal simulation circuit 7b is used for simulating the switch action during the single-piece test.

The operational amplifier circuit 7c is used to amplify the analog voltage from the D/a module 6D, and to simulate a signal whose distance, height, and the like are continuously changed.

The ac/dc power supply module 7d is used for outputting various power supply signals required by the device to be tested.

The load module 7e is used for simulating the load parameters required by the device under test.

The excitation signal switch matrix 7f is used to control the output and disconnection of the excitation signal.

In the excitation box 7, except the operational amplifier circuit 7c, the rest circuits are controlled by discrete signals output by the DIO module 3 e.

The measuring box 8 is used for measuring the functions and performance parameters of the tested equipment and mainly comprises an intelligent instrument 8a, a signal conditioning circuit 8b and a measuring signal switch matrix 8 c.

The intelligent instrument 8a is used for automatic testing of various measuring signals of the tested equipment, including power supply, current, resistance, frequency and the like.

The signal conditioning circuit 8b is used for conditioning signals from the tested device and the rotating speed sensor 6f, so that the signals meet the measurement requirements of the A/D module 6 c.

The measurement signal switch matrix 8c is used for orderly connecting each measured signal to the input channel of the pen-shape or A/D module 6c of the intelligent instrument 8 a.

The test working process comprises the following steps:

the automatic testing device for the airborne fire control system adopts a general design technology, can test various airborne fire control systems, can perform single piece testing, and can also perform overall testing of a complete set of system.

Parameters to be measured by an airborne fire control system are mainly classified into 2 types, one type is an electric signal, such as voltage, current, resistance, frequency, data and the like; one is the aiming ring angle.

For the electrical signal measurement, the automatic test system can automatically measure through the measuring instruments such as the smart meter 8a, the a/D module 6c, the DIO module 3e, the bus module 6b, and the like.

For angle signal measurement, a general method is to read the angle of the aiming ring by a person and then manually input the read angle data into a test system, so that the interpretation error is large and the efficiency is low. Therefore, the system adopts the image recognition method to measure the aiming angle, thereby not only improving the testing precision, but also improving the testing efficiency. The specific method is that the industrial personal computer 6 reads a mixed image of an aiming ring and a scale mark shot by the color camera 9 from the optical cylinder 12 through the video acquisition module 6e, coordinates of a scale center (O) and an aiming ring center (A) can be obtained through image recognition, a rectangular coordinate system is established by the scale center O, the coordinate of a point A can be calculated and recorded as A (x, y), and an aiming azimuth angle and a aiming pitch angle are x d, y d respectively, and d is an angle value represented by each grid of the scale. By adopting the high-speed color camera 9, the angle of the aiming ring can be measured at a high speed, and the jumping fault of the aiming ring which is not easy to be observed by human eyes can be monitored.

The airborne fire control system can be divided into static performance test and dynamic performance test according to the test content.

When a static performance test program of the airborne fire control system is carried out, a tester firstly puts a motor start-stop control switch 3d on a rotary driving system at an off position and cuts off a motor circuit; and then the tester selects the items to be tested, and starts the static parameter test program, and the static parameter test program finishes the test items selected by the tester one by one. When a static parameter test program tests a certain item, the industrial personal computer 6 outputs a control signal to the motor start-stop relay circuit 3f through the DIO module 3e, a motor power supply relay is disconnected, and the test rotary table does not rotate; then, the industrial personal computer 6 automatically controls the excitation box 7 to output various excitation signals required by the tested equipment according to the requirements of the current test items, and prompts testers to perform corresponding operations on the tested equipment, such as pulling a switch, rotating a handle and the like; and finally, the industrial personal computer 6 controls the measuring box 8 and the video acquisition module 6e to acquire various parameters to be tested of the current project and judges the qualification of the measuring result.

When a dynamic performance test program of an onboard fire control system is carried out, a tester firstly puts a motor start-stop control switch 3d on a rotary driving system at an 'on' position and switches on a motor circuit, but the motor does not rotate because the test system is not switched on a motor power supply; and then the tester selects the items to be tested, and finally, the dynamic parameter test program is started, and the dynamic parameter test program finishes the test items selected by the tester one by one. When a certain project is tested, the industrial personal computer 6 outputs a control signal to the motor steering relay circuit 3g through the DIO module 3e, and the motor steering is set; and then a control signal is output to a motor start-stop relay circuit 3f, a motor power supply relay is switched on, and the test rotary table starts to rotate. And then the industrial personal computer 6 acquires the rotating speed of the rotary table top 2a through the A/D module 6c and judges whether the rotating speed meets the requirement. If the test requirement is met, the industrial personal computer 6 outputs an excitation signal to complete test parameter testing, then outputs a control signal to the motor start-stop relay circuit 3d through the DIO module 3e, the power supply of the motor is disconnected, and the test rotary table stops rotating; if the test requirement is not met, the test system is prompted to fail, and the test is terminated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.

Claims (10)

1. The utility model provides an airborne fire control system automatic testing device, is in including test revolving stage and setting automatic test system on the test revolving stage, characterized by: the test turntable comprises a supporting mechanism and a rotating mechanism arranged on the supporting mechanism, the automatic test system is arranged on the rotating mechanism, the rotating mechanism and the automatic test system are driven to rotate by a rotary driving mechanism arranged on the supporting mechanism, the turning angle speed of the airplane is simulated, after the automatic test system is powered by a conductive circuit formed by an electric brush and a conductive ring, corresponding parameters of the airborne fire control system are obtained, the qualification judgment is carried out on the measurement result, and the dynamic performance and the static performance test of the airborne fire control system are completed;

the automatic test system comprises an industrial personal computer, an excitation box, a measurement box and a color camera which are connected with each other,

an industrial personal computer: running test software, providing a test human-computer interaction interface, controlling the excitation box to automatically output various excitation signals required by the tested equipment, controlling the measurement box to automatically test various functions and performance parameters of the tested equipment, and automatically judging the qualification of the test result;

an excitation box: outputting various excitation signals required by the tested equipment and carrying out rotation control on the rotating mechanism;

a measuring box: measuring the function and performance parameters of the tested equipment;

color camera: a blended image of the sight ring and the scale marks is taken from the optical barrel.

2. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the supporting mechanism comprises a chassis, a support column and a support column fixing device, the chassis is a circular steel plate, one end of the support column is fixed at the circle center position of the circular steel plate of the base through the support column fixing device, and the rotating mechanism is supported after the conducting ring is sleeved at the other end of the support column.

3. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the rotating mechanism comprises a rotating table board, a rotating cylinder and a seat, the upper part of the rotating cylinder is fixedly connected with the rotating table board, the lower part of the rotating cylinder is sleeved on a support column of the supporting mechanism and is connected with a second worm gear through a second worm gear connecting steel plate connected with the rotating cylinder, and the second worm gear rotates on a support column fixing device of the supporting mechanism through a two-plane worm gear bearing.

4. The automatic testing device of the airborne fire control system of claim 3, which is characterized in that: the seat is characterized in that a rotary cylinder bearing and the electric brush are sleeved between the rotary cylinder and the pillar, a steel beam is welded in the middle of the rotary cylinder, and the seat is arranged on the steel beam through bolts.

5. The automatic testing device of the airborne fire control system of claim 3, which is characterized in that: the rotary table top is a circular plywood, the upper surface of the rotary table top is provided with a tested device, an industrial personal computer and a color camera mounting hole, and the lower surface of the rotary table top is provided with a rotary cylinder, an excitation box and a measurement box mounting hole.

6. The automatic testing device of the airborne fire control system of claim 5, which is characterized in that: the industrial personal computer is characterized in that a conical cylindrical fixing frame is arranged on a mounting hole of the industrial personal computer, the industrial personal computer is fixedly arranged at the top of the fixing frame, an optical cylinder and a rotating shaft are arranged in the middle of the fixing frame, tested equipment is arranged at one end of the rotating shaft, the other end of the rotating shaft is connected with a rotating mechanism in the fixing frame, the rotating mechanism comprises a worm wheel and a worm which are matched with each other to rotate, the worm wheel is sleeved on the rotating shaft, the worm is arranged in the fixing frame through a worm bearing, and one end of; the worm wheel is provided with a stop hole, a stop pin penetrating through the fixing frame and connected with the stop hand wheel is movably arranged in the stop hole, and the rotating shaft is installed in the fixing frame through a rotating bearing.

7. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the rotary driving mechanism comprises an electric motor, a control mechanism, a gearbox and two groups of worm gears, the electric motor is started, stopped and rotated positively and negatively under the action of the control mechanism and is connected with the gearbox through the first group of worm gears, and the gearbox is linked with a worm gear II in the rotary mechanism through the second group of worm gears to drive the rotary mechanism to rotate.

8. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the industrial personal computer comprises an industrial computer, and a DIO module, a bus module, an A/D module, a D/A module and a video acquisition module which are arranged in the industrial computer; the DIO module is used for outputting discrete magnitude signals and controlling corresponding circuits in the excitation box and the measurement box to work; the bus module is used for simulating other airborne equipment to exchange information with the airborne fire control system; the A/D module is used for acquiring continuously changed analog signals sent by the equipment to be tested, the rotating speed sensor and the like; the D/A module is used for outputting analog voltage to the excitation box; the video acquisition module is used for acquiring the video of the color camera and automatically testing the aiming ring angle of the fire control system.

9. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the excitation box comprises a motor start-stop relay circuit, a motor reversing circuit, a switch signal simulation circuit, an alternating current/direct current power supply module, a load module and an excitation signal switch module, wherein the motor start-stop relay circuit, the motor reversing circuit, the switch signal simulation circuit, the alternating current/direct current power supply module, the load module and the excitation signal switch module are controlled by discrete signals output by the DIO module; the motor starting and stopping relay circuit and the motor reversing circuit are used for controlling the rotation of the motor; the switch signal simulation circuit is used for simulating the switch action during single-piece testing; the alternating current and direct current power supply module is used for outputting various power supply signals required by the tested equipment; the load module is used for simulating load parameters required by the tested equipment; the excitation signal switch matrix is used for controlling the output and disconnection of the excitation signal; and the operational amplifier circuit in the excitation box is used for amplifying the analog voltage, analog distance and height continuous change signals from the D/A module.

10. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the measuring box comprises an intelligent instrument, a signal conditioning circuit and a measuring signal switch matrix; the intelligent instrument is used for automatically testing various measuring signals of the tested equipment; the signal conditioning circuit is used for conditioning signals from the tested equipment and the rotating speed sensor so that the signals meet the measurement requirements of the A/D module; the measurement signal switch matrix is used for orderly connecting each measured signal to an input channel of a meter pen or an A/D module of the intelligent instrument.

Images