CN106524833A - Target space angle position simulator and application method - Google Patents

Abstract

The invention discloses a target space angle position simulator and a using method. Including the base frame (1), the base frame (1) is provided with a beam driving device (3), the beam driving device (3) is connected with the rotating beam (4), and the rotating beam (4) is provided with a linear slide ( 5), the linear slide table (5) is connected with the follow-up mechanism (6). The invention has the characteristics of simple structure and high testing precision.

Description

A target space angular position simulator and its application method

technical field

The invention relates to an experimental platform for a seeker test, in particular to a target space angular position simulator and a using method.

Background technique

The spatial characteristics of the target space angular position simulator reflect the angular position of the target to be detected and tracked by the seeker, which includes the motion and position characteristics of the target. The target space angular position simulator is mainly used to test the line-of-sight angular velocity parameters of the seeker used in the missile guidance control system. The line-of-sight angular velocity test needs to simulate the change of the target space angular position. Therefore, in the seeker test, the target space angle must be used The position simulator is used to simulate the angular position of the target space. At present, the mainly used simulator mainly uses the Cartesian coordinate system to identify the position of the sensor on the follower mechanism; this structure mainly has the following disadvantages: 1) the structure is complex; 2) the precision is low; the follower mechanism is arranged on two supporting guide beams (One is the abscissa and the other is the ordinate). During the test, the follower mechanism moves along the two supporting and guiding beams to reach the preset position. The two supporting and guiding beams are relatively long (generally 4 meters), and are prone to deformation. At this time, there are two deformation factors, the compensation algorithm is relatively complicated, and the test error is also large, thereby reducing the test accuracy.

Contents of the invention

The object of the present invention is to provide a target space angular position simulator and its usage method. The invention has the characteristics of simple structure and high testing precision.

The technical scheme of the present invention: a target space angular position simulator, including a base frame, a beam driving device is provided on the base frame, the beam driving device is connected with the rotating beam, and a linear sliding platform is arranged on the rotating beam, and the linear sliding table Connect with follower mechanism.

In the aforementioned target space angular position simulator, the base frame is further provided with an annular support, and a braking ring is provided on the annular support, and the braking ring is connected to the rotating beam through a braking device.

In the aforementioned target space angular position simulator, the brake device includes brake pads, the brake pads are connected to the driving cylinder, and the driving cylinder is connected to the rotating beam.

In the aforementioned target space angular position simulator, the linear slide table includes a linear guide rail, the two ends of the linear guide rail are respectively provided with a driven pulley and a linear drive motor, and a synchronous belt is connected between the driven pulley and the linear drive motor. , the synchronous belt includes two parallel belt bodies, one of which is connected with a connecting block, and the connecting block is connected with the linear guide rail through a linear slider.

In the aforementioned target space angular position simulator, the follow-up mechanism includes a follow-up support platform, the follow-up support platform is connected with the bearing seat, the bearing seat is connected with a rotating frame above, and the bottom is connected with the first rotation drive mechanism; The rotating frame is connected with a sensor fixing frame, and the sensor fixing frame is connected with the second rotating drive mechanism; the follow-up supporting platform is also connected with the connecting block.

The method of using the aforementioned target space angular position simulator is as follows: during testing, fix the guide head to be tested at a certain position away from the simulator, fix the sensor on the follower mechanism, and at this time the guide head sends out a signal to reach the preset position. Position, the sensor moves to the preset position to receive signals under the compound motion of the rotation of the rotating beam and the movement of the follower mechanism along the linear sliding table to realize the test.

In the aforementioned method of using the target space angular position simulator, when the rotating beam rotates to a preset position, the brake pads of the braking device contact the brake ring to brake the rotating beam.

In the aforementioned method of using the target space angular position simulator, the movement of the follower mechanism along the linear sliding table is that the linear drive motor drives the synchronous belt to move, and the synchronous belt drives the follower mechanism to move along the linear guide rail to a preset position.

In the aforementioned method of using the target space angular position simulator, the first rotating drive mechanism drives the rotating frame to rotate along the central axis of the bearing seat, and the second rotating driving mechanism drives the sensor fixing frame to rotate. The rotation in the above two directions constitutes a composite rotation The sensor rotates to the preset position to receive the signal from the guide head to realize the test.

Beneficial effect

Compared with the prior art, the present invention has the following beneficial effects:

In the present invention, a crossbeam driving device is arranged on the base frame, the crossbeam driving device is connected with the rotating crossbeam, a linear sliding table is arranged on the rotating crossbeam, and the linear sliding table is connected with the follow-up mechanism; through this structure, the double guide columns of the traditional Cartesian coordinate system are replaced structure, which in turn makes the structure simpler.

The present invention constitutes a polar coordinate system through the rotation of the rotating crossbeam and the conforming motion of the follow-up mechanism sliding along the linear sliding table. Through this structure, the traditional rectangular coordinate system is replaced; because only one pole coordinate system is used in the polar coordinate system of the present invention The guide beam is supported (that is, the rotating beam), so one deformation factor is reduced, thereby simplifying the compensation algorithm, reducing the test error, and then improving the test accuracy.

The invention adopts the synchronous belt to drive the follow-up mechanism to move along the linear slide table, and compared with the linear motor, the repeat positioning accuracy is higher, and the test accuracy is further improved.

The present invention respectively drives the rotating frame and the sensor fixing frame to rotate through the first rotary driving mechanism and the second rotary driving mechanism to adjust the attitude of the sensor so that it can better receive the signal from the guide head, and effectively improves the simulator experiment. The sensitivity of the platform improves the reliability of the simulator experiment platform.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the front view of the present invention;

Fig. 3 is a schematic diagram of the connection structure between the linear slide table and the follow-up mechanism;

Fig. 4 is a schematic structural diagram of the experimental platform of the target space angular position simulator.

The marks in the drawings are: 1-base frame, 2-ring bracket, 3-beam driving device, 4-rotating beam, 5-linear slide table, 6-following mechanism, 7-braking ring, 8-braking device ,9-linear guide rail, 10-driven pulley, 11-linear drive motor, 12-synchronous belt, 13-connecting block, 14-linear slider, 15-following support table, 16-bearing seat, 17-rotary frame , 18-first rotary drive mechanism, 19-inductor fixing frame, 20-second rotary drive mechanism, 21-brake pad, 22-drive cylinder, 23-guide head, 24-inductor, 25-simulator.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

Example 1. A target space angular position simulator, constituted as shown in Figure 1-3, includes a base frame 1, a beam driving device 3 is provided on the base frame 1, the beam driving device 3 is connected with a rotating beam 4, and the rotating beam 4 is A linear slide table 5 is provided, and the linear slide table 5 is connected with a follow-up mechanism 6 .

The aforementioned pedestal 1 is also provided with an annular support 2 , and the annular support 2 is provided with a braking ring 7 , which is connected to the rotating beam 4 via a braking device 8 .

The aforementioned braking device 8 includes brake pads 21 , the brake pads 21 are connected to the driving cylinder 22 , and the driving cylinder 22 is connected to the rotating beam 4 . Through this structure, when braking, the driving cylinder 22 pushes the brake pad 21 to contact the brake ring 7 to achieve braking.

The aforementioned linear slide table 5 includes a linear guide rail 9, and the two ends of the linear guide rail 9 are respectively provided with a driven pulley 10 and a linear drive motor 11, and a synchronous belt 12 is connected between the driven pulley 10 and the linear drive motor 11, and the synchronous belt 12 includes two belts parallel to each other, one of which is connected with a connecting block 13, and the connecting block 13 is connected with the linear guide rail 9 via a linear slider 14.

Aforesaid follow-up mechanism 6 comprises follow-up support platform 15, and follow-up support platform 15 is connected with bearing seat 16, and bearing seat 16 top is connected with swivel frame 17, and the bottom is connected with first rotation drive mechanism 18; Described swivel frame 17 A sensor fixing frame 19 is connected to it, and the sensor fixing frame 19 is connected to the second rotation driving mechanism 20;

The using method of aforementioned target space angular position simulator is: when testing, the guide head 23 to be tested is fixed at a certain position apart from simulator 25 (being the target space angular position simulator of the present invention), and inductor 24 is fixed. On the follow-up mechanism 6, specifically, be fixed on the sensor fixed frame 19, form the target space angle position simulator experiment platform (as shown in Figure 4), at this moment, the guide head 23 sends a signal to arrive at the preset position, and the sensor 24 moves to the preset position to receive signals under the compound motion of the rotation of the rotating crossbeam 4 and the movement of the follower mechanism 6 along the linear slide 5 to realize the test.

When the aforementioned rotating beam 4 rotates to a preset position, the brake pads 21 of the braking device 8 contact the brake ring 7 to brake the rotating beam 4 .

The movement of the aforementioned follow-up mechanism 6 along the linear slide 5 is that the linear drive motor 11 drives the synchronous belt 12 to move, and the synchronous belt 12 drives the follow-up mechanism 6 to move to a preset position along the linear guide rail 9 .

The aforementioned first rotation drive mechanism 18 drives the rotating frame 17 to rotate along the central axis of the bearing seat 16, and the second rotation drive mechanism 20 drives the sensor fixing frame 19 to rotate. The rotation in the above two directions constitutes a compound rotation to rotate the sensor to a preset The position accepts the signal of the seeker to realize the test.

Claims (9)

1. A target space angular position simulator, characterized in that: it comprises a pedestal (1), the pedestal (1) is provided with a crossbeam driving device (3), the crossbeam driving device (3) and the rotating crossbeam (4 ) connection, the rotating beam (4) is provided with a linear slide (5), and the linear slide (5) is connected with the follow-up mechanism (6). 2. The target space angular position simulator according to claim 1, characterized in that: the base frame (1) is also provided with a ring bracket (2), and the ring bracket (2) is provided with a brake ring ( 7), the brake ring (7) is connected with the rotating beam (4) through the brake device (8). 3. The target space angular position simulator according to claim 2, characterized in that: the brake device (8) includes brake pads (21), the brake pads (21) are connected to the driving cylinder (22), and the driving cylinder (22) is connected with rotating beam (4). 4. The target space angular position simulator according to claim 1 or 2, characterized in that: the linear slide table (5) includes a linear guide rail (9), and the two ends of the linear guide rail (9) are respectively equipped with A synchronous belt (12) is connected between the driving pulley (10) and the linear drive motor (11), the driven pulley (10) and the linear drive motor (11), and the synchronous belt (12) includes two parallel belt bodies , one of the belts is connected with a connection block (13), and the connection block (13) is connected with the linear guide rail (9) via a linear slide block (14). 5. The target space angular position simulator according to claim 4, characterized in that: the follow-up mechanism (6) includes a follow-up support platform (15), a follow-up support platform (15) and a bearing seat (16 ) connection, a rotating frame (17) is connected above the bearing seat (16), and a first rotating drive mechanism (18) is connected below; the rotating frame (17) is connected with a sensor fixing frame (19), and the sensor The fixed frame (19) is connected with the second rotary drive mechanism (20); the said follow-up support platform (15) is also connected with the connecting block (13). 6. A method for using the target space angular position simulator as described in any one of claims 1-5, characterized in that: during testing, the guide head to be tested is fixed at a certain position away from the simulator, and the induction The device is fixed on the follow-up mechanism (6), at this time, the guide head sends out a signal to reach the preset position, and the compound movement of the sensor in the rotation of the rotating beam (4) and the movement of the follow-up mechanism (6) along the linear slide (5) Move down to the preset position to receive the signal and realize the test. 7. The method of using the target space angular position simulator according to claim 5, characterized in that: when the rotating beam (4) rotates to the preset position, the brake pads (21) of the braking device (8) Comes into contact with the brake ring (7) to brake the rotating beam (4). 8. The method of using the target space angular position simulator according to claim 6, characterized in that: the follow-up mechanism (6) moves along the linear sliding table (5), and the linear drive motor (11) drives synchronously The belt (12) moves, and the timing belt (12) drives the follower mechanism (6) to move along the linear guide rail (9) to a preset position. 9. The method of using the target space angular position simulator according to claim 7, characterized in that: the first rotation drive mechanism (18) drives the rotation frame (17) to rotate along the central axis of the bearing seat (16), and the second rotation The driving mechanism (20) drives the sensor fixing frame (19) to rotate, and the rotation in the above two directions constitutes a composite rotation to rotate the sensor to a preset position to receive a signal from the guide head to realize the test.