Fixing device of seeker and inertial measurement unit for semi-physical simulation

Abstract

The utility model discloses a fixing device for a seeker and an inertial measurement unit for semi-physical simulation, which is characterized in that a plurality of radial limiting grooves are distributed on the circumference of a rotary table switching base, positioning columns are connected in the limiting grooves in a sliding manner, the positioning columns are matched with positioning holes on a base plate of a five-axis rotary table, and the positioning holes are matched with the limiting grooves. The seeker adapter base and the turntable adapter base are coaxially arranged at an interval through the telescopic mechanism, the seeker adapter base is used for connecting and fixing a seeker, the bracket is arranged at one end, far away from the turntable base, of the seeker adapter base, and the bracket is used for mounting an inertial measurement unit; according to the fixing device for the seeker and the inertial measurement unit for semi-physical simulation, the positioning columns slide in the limiting grooves to adapt to positioning hole rings with different diameters, so that the rotary table switching base adapts to substrates with different specifications, and meanwhile, the telescopic mechanism adjusts the interval between the seeker switching base and the rotary table switching base; the device is suitable for seekers of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seeker simulation experiment, more particularly, relate to a kind of for semi-physical simulation seeker and the fixing device of inertial measurement unit. BACKGROUND

[0002] Before the flight test or target test of newly developed weapon system, the semi-physical simulation of whole weapon system closed loop is needed, so as to verify the performance, guidance precision and reliability of guidance equipment and control system, and the semi-physical simulation of weapon system is usually completed by five-axis turntable.

[0003] Target simulator is usually fixed on the outer two frames of five-axis turntable, for simulating the position information (pitch line-of-sight angle, yaw line-of-sight angle) of missile-target of the system, and guidance equipment is usually fixed on the inner three frames of five-axis turntable, for simulating the attitude (pitch angle, yaw angle and roll angle) of the system; the guidance equipment mainly includes seeker equipment and inertial measurement unit, etc., the seeker is used for tracking target, and the inertial measurement unit is used for measuring the angular velocity of system rotation; it is particularly crucial that the seeker and the inertial measurement unit are fixed on the five-axis turntable, if not fixed firmly, measurement error will be artificially introduced, leading to the failure of semi-physical simulation. Most seekers are frame structures, containing servo platform inside, the rotation of frame is controlled to realize the tracking of target, the line-of-sight angular velocity is measured by gyro on the frame, and during the process of semi-physical simulation, the axis (yaw axis and pitch axis) of seeker frame is required to coincide with the axis (yaw axis and pitch axis) of five-axis turntable due to the close distance between target and seeker, so the installation position requirement of axis (yaw axis and pitch axis) of seeker frame is consistent for different length seeker frame, i.e. the axis (yaw axis and pitch axis) of seeker frame coincides with the axis of five-axis turntable, if not, measurement error will be artificially introduced, leading to the failure of semi-physical simulation. Different seekers have different diameters and lengths, and different turntables have different types of installation interfaces, so a suitable fixing device needs to be customized before each semi-physical simulation according to different mechanical interfaces of seeker and turntable, to fix the seeker on the inner three frames of five-axis turntable.

[0004] In the prior art, the installation holes for connection at the base plate of five-axis turntable of different manufacturers are usually not unified in most positions, different installation components cannot be adapted, and the length and diameter of different seekers are different, so a special fixing device needs to be customized for semi-physical simulation before semi-physical simulation, which is very inconvenient, and most devices are customized, some devices are discarded after being used once, which wastes a lot of resources. A new integrated device is needed to ensure that the axis of seeker frame coincides with the axis of turntable, adapt to the installation interfaces of different five-axis turntables and different diameters of seekers.

[0005] Now, a new type of seeker and inertial measurement unit fixing device for semi-physical simulation is proposed to solve the above problems. Content of the utility model

[0006] The utility model discloses to the existing technology, provide a kind of fixing device for semi-physical simulation of seeker and inertial measurement unit, solve the need of custom-made exclusive fixing device before existing semi-physical simulation to be used for guaranteeing seeker frame axis and turntable axis coincides, the mounting interface of adaptation different five-axis turntable and different diameter seeker, the existing mode is very inconvenient, and since most devices are custom-made, some devices are discarded after subsequent use, waste many resources problems.

[0007] To achieve the above object, the utility model provides a kind of fixing device for semi-physical simulation of seeker and inertial measurement unit, comprising:

[0008] The base plate is provided with a plurality of positioning holes circumferentially distributed;

[0009] The turntable adapter base is circumferentially distributed with a plurality of radial limit grooves, the limit groove is slidably connected with the positioning column, and the positioning column is matched with the positioning hole on the base plate of the five-axis turntable;

[0010] The seeker adapter base is coaxially spaced apart from the turntable adapter base by the telescopic mechanism, and the seeker adapter base is used to connect and fix the seeker;

[0011] The bracket is arranged at the end of the seeker adapter base away from the turntable base, and the bracket is used to install the inertial measurement unit.

[0012] Optionally, the seeker adapter base comprises:

[0013] The guide rail pressure disc, the driving disc, the bottom disc and the plurality of clamping jaws are coaxially arranged in sequence, the outer periphery of the driving disc is provided with a driving handle, the bottom disc cooperates with the guide rail pressure disc to form a chamber structure, the driving disc is rotatably connected in the chamber structure, and the chamber structure is provided with a avoiding groove matched with the driving handle;

[0014] The guide rail pressure disc is provided with a first central avoiding hole and a plurality of radial guide rail grooves;

[0015] The driving disc is provided with a second central avoiding hole and a plurality of circumferentially distributed guide grooves;

[0016] The inertial measurement unit is arranged on the axis of the bottom disc through the bracket;

[0017] The clamping jaw is slidably arranged in the guide rail groove, a guide wheel is arranged on the clamping jaw, the guide wheel is arranged in the guide groove, and the driving disc rotates to drive the clamping jaw to move in the guide rail groove.

[0018] Optionally, the positioning hole and the positioning column are threadedly connected.

[0019] Optionally, the clamping jaw is in an L-shaped structure, and a limiting hole for positioning the guide head is arranged on the clamping jaw.

[0020] Optionally, the telescopic mechanism comprises a plurality of circumferentially distributed telescopic rods, and two ends of the telescopic rod are connected with the guide head adapter base and the rotary table adapter base respectively.

[0021] Optionally, the telescopic rod comprises a sleeve and a support column, the support column is inserted into the sleeve, a limiting bolt is arranged on the outer periphery of the sleeve, and the limiting bolt is used for limiting the movement of the support column in the sleeve.

[0022] Optionally, a fastening bolt is further arranged, the fastening bolt is axially arranged through the guide head adapter base and is threadedly connected with the end of the support column.

[0023] Optionally, the guide head adapter base is provided with a threaded hole, the fastening bolt is threadedly connected in the threaded hole, and a positioning slot is arranged at one end of the support column close to the threaded hole.

[0024] Optionally, the support frame comprises a connecting plate and a horizontal plate, the connecting plate is connected with the guide head adapter base, one end of the horizontal plate is connected with the connecting plate, and the other end of the horizontal plate is connected with the inertial measurement unit.

[0025] Optionally, the clamping jaw is provided with eight.

[0026] The utility model provides a kind of fixing device for semi-physical simulation guide head and inertial measurement unit, its beneficial effect lies in:

[0027] The fixing device for semi-physical simulation guide head and inertial measurement unit is adapted to positioning hole ring of different diameters by the positioning column sliding in the limiting slot, so that the rotary table adapter base is adapted to base plate of different specifications, improve versatility, the inertial measurement unit and guide head are fixed by the guide head adapter base, so that guide head and inertial measurement unit are coaxial, and the telescopic mechanism adjusts the interval between guide head adapter base and rotary table adapter base, and is adapted to guide head of different specifications.

[0028] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0030] Figure 1 A schematic diagram of the fixing device for a seeker and inertial measurement unit for semi-physical simulation according to an embodiment of the present invention is shown.

[0031] Figure 2 A schematic diagram of the turntable adapter base of a fixing device for a guide head and inertial measurement unit for semi-physical simulation according to an embodiment of the present invention is shown.

[0032] Figure 3 This invention illustrates a mounting device for a seeker and inertial measurement unit used in a hardware-in-the-loop simulation, according to an embodiment of the present invention. Figure 1 Enlarged view of point A.

[0033] Figure 4 This invention illustrates a mounting device for a seeker and inertial measurement unit used in a hardware-in-the-loop simulation, according to an embodiment of the present invention. Figure 2 Enlarged view of point B.

[0034] Figure 5 A schematic diagram of the guide head adapter base of a fixing device for a guide head and inertial measurement unit for semi-physical simulation according to an embodiment of the present invention is shown.

[0035] Figure 6 An exploded view of the guide head adapter base of a fixing device for a guide head and inertial measurement unit for semi-physical simulation according to an embodiment of the present invention is shown.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Base plate; 2. Turntable adapter base; 3. Guide head adapter base; 4. Guide head; 5. Limiting groove; 6. Positioning post; 7. Inertial measurement unit; 8. Telescopic rod; 9. Fastening bolt; 10. Bracket;

[0038] 31. Guide rail pressure plate; 32. Drive plate; 33. Chassis; 34. Gripper; 35. Guide wheel. Detailed Implementation

[0039] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application is more thoroughly and completely conveyed to those skilled in the art, and the scope of the present application is fully conveyed to those skilled in the art.

[0040] As shown in Figures 1-6 A fixing device for a seeker and an inertial measurement unit in a semi-physical simulation, comprising:

[0041] A rotary table adapter base 2, a plurality of radial limiting grooves 5 are circumferentially distributed on the rotary table adapter base 2, a positioning column 6 is slidably connected in the limiting groove 5, and the positioning column 6 is matched with a positioning hole on the base plate 1 of the five-axis rotary table;

[0042] A seeker adapter base 3, the seeker adapter base 3 is coaxially and spaced apart from the rotary table adapter base 2 through an extension mechanism, and the seeker adapter base 3 is used for connecting and fixing a seeker 4;

[0043] A support 10, the support 10 is arranged at one end of the seeker adapter base 3 away from the rotary table base, and the support 10 is used for mounting an inertial measurement unit.

[0044] Specifically, the base plate 1 circumferentially distributes a plurality of positioning holes, the plurality of positioning holes form a positioning hole ring, the positioning column 6 is adapted for use of different diameter positioning hole rings by sliding in the limiting groove 5, thereby making the rotary table adapter base 2 adapt to use of different specifications of the base plate 1, improving the universality, the inertial measurement unit 7 and the seeker 4 are fixed through the seeker adapter base 3, the seeker 4 and the inertial measurement unit 7 are coaxial, and the extension mechanism adjusts the interval between the seeker adapter base 3 and the rotary table adapter base 2, thereby adapting to use of different specifications of the seeker 4.

[0045] Further, each positioning column 6 can also be arranged on a plurality of concentric circles for use. For example, eight positioning columns 6, four in a group, are divided into two groups, and the two groups of positioning columns 6 are respectively distributed on two concentric circles, that is, the two groups of positioning columns 6 are respectively located at two ends of the limiting groove 5, facilitating uniform stress and stable connection.

[0046] In the embodiment, the seeker adapter base 3 comprises:

[0047] A guide rail pressure disc 31, a driving disc 32, a bottom disc 33 and a plurality of clamping jaws 34 are coaxially arranged in sequence, a driving handle is arranged on the outer periphery of the driving disc 32, the bottom disc 33 cooperates with the guide rail pressure disc 31 to form a chamber structure, the driving disc 32 is rotationally connected in the chamber structure, and the chamber structure is provided with an avoiding groove matched with the driving handle;

[0048] The guide rail pressure disc 31 is provided with a first central avoiding hole and a plurality of radial guide rail grooves;

[0049] The driving disc 32 is provided with a second center avoiding hole and a plurality of circumferentially distributed guide grooves;

[0050] The inertial measurement unit 7 is arranged on the axis of the chassis 33 through the support 10;

[0051] The clamping jaw 34 is slidingly arranged in the guide rail groove, and the guide wheel 35 arranged on the clamping jaw 34 is arranged in the guide groove, and the driving disc 32 rotationally drives the clamping jaw 34 to move in the guide rail groove.

[0052] Specifically, the guide groove is obliquely arranged, the driving disc 32 rotationally drives the clamping jaw 34 to move along the guide groove, the clamping jaw 34 is limited by the guide rail groove, thereby enabling each clamping jaw 34 to clampingly guide the guide head 4 in the guide rail groove, and the use is simple and convenient.

[0053] In the embodiment, the positioning hole and the positioning column 6 are threadedly connected.

[0054] Specifically, the positioning column 6 is a slidable bolt, and the adaptability is improved through sliding movement.

[0055] In the embodiment, the clamping jaw 34 has an L-shaped structure, and the clamping jaw 34 is provided with a limiting hole for positioning the guide head 4.

[0056] Specifically, different shapes of the guide head 4 are adapted for use, the limiting hole can be provided with a screw to fasten the guide head 4, and the connection stability is improved.

[0057] In the embodiment, the telescopic mechanism includes a plurality of circumferentially distributed telescopic rods 8, and the two ends of the telescopic rod 8 are respectively connected with the guide head adapter base 3 and the turntable adapter base 2.

[0058] Specifically, the interval between the guide head adapter base 3 and the turntable adapter base 2 is adjusted through the telescopic rod 8.

[0059] Further, the positioning column 6 is located outside the telescopic rod 8, facilitating installation and use.

[0060] In the embodiment, the telescopic rod 8 includes a sleeve and a support, the support is inserted into the sleeve, and the outer periphery of the sleeve is provided with a limiting bolt for limiting the movement of the support in the sleeve.

[0061] Specifically, the position of the support in the sleeve is fixed through the limiting bolt, thereby ensuring the stability of the interval between the guide head adapter base 3 and the turntable adapter base 2.

[0062] Further, the support can be extracted from the sleeve to adapt to the installation of the guide head 4.

[0063] In the embodiment, a fastening bolt 9 is further included, which is axially threaded through the guide head adapter base 3 and threadedly connected with the end of the support.

[0064] Specifically, the fastening bolt 9 avoids the driving disc 32 when passing through the adapter base 3 of the seeker, so as to avoid hindering the rotation of the driving disc 32, and the rotation of the driving disc 32 cannot drive the inertial measurement unit to rotate.

[0065] In the embodiment, the adapter base 3 of the seeker is provided with a threaded hole, the fastening bolt 9 is threadedly connected in the threaded hole, and the threaded hole is provided with a positioning slot at one end close to the support.

[0066] Specifically, the positioning slot cooperates with the fastening bolt 9 to ensure the axial precision and stability of the telescopic rod 8.

[0067] In the embodiment, the support 10 comprises a connecting plate and a horizontal plate, the connecting plate is connected with the adapter base 3 of the seeker, one end of the horizontal plate is connected with the connecting plate, and the other end of the horizontal plate is connected with the inertial measurement unit 7.

[0068] Specifically, the support 10 is L-shaped, so that the inertial measurement unit is conveniently installed and fixed.

[0069] In the embodiment, the clamping jaw 34 is provided with eight.

[0070] The fixing device for the seeker 4 and the inertial measurement unit 7 used in the semi-physical simulation is used in the embodiment, and the installation and use are taken as examples:

[0071] First, the support and the adapter base 3 of the seeker are connected, then the seeker 4 is installed, and finally the rotary table adapter base 2 is connected with the base plate 1.

[0072] The above has described the embodiments of the utility model, the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A fixture for semi-physical simulation of a seeker and an inertial measurement unit, characterized by, include: A turntable adapter base, wherein multiple radially distributed limiting grooves are provided on the turntable adapter base, and a positioning post is slidably connected in the limiting groove, and the positioning post is engaged with the positioning hole on the base plate of the five-axis turntable. A guide head adapter base is provided, which is coaxially spaced with the turntable adapter base via a telescopic mechanism. The guide head adapter base is used to connect and fix the guide head. A bracket is disposed at one end of the guide head adapter base away from the turntable base, and the bracket is used to mount the inertial measurement unit.

2. The fixture for a semi-physical simulation of a seeker and an inertial measurement unit according to claim 1, characterized in that The guide head adapter base includes: The guide rail pressure plate, drive plate, chassis and multiple grippers are arranged coaxially in sequence. The drive plate has a drive handle on its outer periphery. The chassis and the guide rail pressure plate form a chamber structure. The drive plate is rotatably connected in the chamber structure. The chamber structure is provided with a clearance groove that cooperates with the drive handle. The guide rail pressure plate is provided with a first central clearance hole and multiple radial guide rail grooves; The drive disk is provided with a second central clearance hole and multiple circumferentially distributed guide grooves; The inertial measurement unit is mounted on the axis of the chassis via a bracket; The gripper is slidably disposed in the guide rail groove, and a guide wheel is provided on the gripper. The guide wheel is disposed in the guide groove, and the drive disk rotates to drive the gripper to move in the guide rail groove.

3. The fixture for a semi-physical simulation of a seeker and an inertial measurement unit according to claim 1, characterized in that, The positioning hole and the positioning post are threadedly connected.

4. The fixture for semi-physical simulation of a seeker and inertial measurement unit according to claim 2, wherein The gripper has an L-shaped structure and is provided with a limiting hole for positioning the guide head.

5. The fixture for semi-physical simulation of a seeker and inertial measurement unit according to claim 1, wherein The telescopic mechanism includes multiple circumferentially distributed telescopic rods, the two ends of which are respectively connected to the guide head adapter base and the turntable adapter base.

6. The fixture for a semi-physical simulation of a seeker and an inertial measurement unit according to claim 1, characterized in that, The telescopic rod includes a sleeve and a support column. The support column is inserted into the sleeve. A limit bolt is provided on the outer periphery of the sleeve to restrict the movement of the support column within the sleeve.

7. The fixture for a semi-physical simulation of a seeker and an inertial measurement unit according to claim 6, characterized in that It also includes a fastening bolt, which passes axially through the guide head adapter base and is threaded to the end of the support column.

8. The fixture for a semi-physical simulation of a seeker and an inertial measurement unit according to claim 7, characterized in that The guide head adapter base is provided with a threaded through hole, and the fastening bolt is threaded into the threaded through hole. A positioning slot is provided at one end of the threaded through hole near the support column.

9. The fixture for a semi-physical simulation of a seeker and an inertial measurement unit according to claim 1, characterized in that, The support includes a connecting plate and a horizontal plate. The connecting plate is connected to the guide head adapter base. One end of the horizontal plate is connected to the connecting plate, and the other end of the horizontal plate is connected to the inertial measurement unit.

10. The fixture for semi-physical simulation of a seeker and inertial measurement unit according to claim 2, wherein, The gripper is provided with eight grippers.

Images