CN206247944U - Cannon boresight fixture assembly - Google Patents

Abstract

The utility model discloses a target calibration device for artillery. It includes a cylindrical insertion rod (3) with a reed (2) outside it, and an optical component (1) coaxial with the cylindrical insertion rod (3), especially the optical component (1) is a Telescopic lens group (12), wherein, light source is the point light source (14) that is arranged in sequence, aperture diaphragm (15), astigmatism sheet (16) and plane mirror (11), and plane mirror (11) is positioned at telescopic lens group (12) on the incident light path, and form an angle of 40 to 50° with the incident light path; an imaging component (4) coaxial with it is also placed in the inner cavity of the cylindrical insertion rod (3), and the imaging component (4) is sequentially arranged from the same optical axis The set cross reticle (41), focusing imaging lens group and photosensitive array (44); the input end of the point light source (14) and the output end of the photosensitive array (44) are all electrically connected to the display (5). It has the characteristics of reasonable structure, practicality and convenient use, and can be widely used in the calibration of various artillery targets.

Description

artillery target calibration device

technical field

The utility model relates to a target calibration device, in particular to a cannon target calibration device.

Background technique

In order to improve the shooting accuracy and effectiveness of artillery, existing integrated weapon platforms, such as artillery on aircraft, warships and tanks, are mostly equipped with fire control radars. During the use of these guns equipped with fire control radars, it is often necessary to calibrate them so that the axis of the guns coincides with the center of the cross target surface of the fire control radars. At present, most of the target calibration equipment commonly used by people is the naval gun target calibration mirror produced by Chongqing Zhujiang Optoelectronics Technology Co., Ltd. The naval gun target calibration mirror is mainly composed of a cylindrical insertion rod with a reed outside, and an optical component coaxial with the cylindrical insertion rod, wherein the optical component is a telescope and an adjustable eyepiece perpendicular to it; First, aim the fire control radar of the naval gun at a certain star point in the sky, so that the star point falls on the center of the cross target surface of the fire control radar, and then insert the target mirror of the naval gun into the barrel of the naval gun from the muzzle , the external reed eliminates the gap between the naval gun target mirror and the inner barrel of the gun barrel, so that the mechanical axes of the two are parallel, and by adjusting the deviation angle of the artillery axis, the star point and the cross point in the naval gun target mirror Wipe centers coincide. Although this kind of naval gun target calibration mirror can be used for naval gun target calibration, there are also shortcomings. First of all, when aiming at the star point, the gun muzzle of the naval gun is relatively high, and it is inconvenient and unsafe to observe through the eyepiece Secondly, the pupil of the human eye is too small, and the field of view cannot be seen completely. It is necessary to continuously shift the gaze of the eye to see the entire field of view, which not only cannot be observed directly, but also makes the efficiency of observation low; Differences make the accuracy of observation difficult to be highly consistent.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art, and provide a reasonable structure, practical and easy-to-use artillery target calibration device.

In order to solve the technical problem of the utility model, the adopted technical solution is: the artillery target calibration device includes a cylindrical insertion rod with a reed outside it, and an optical component coaxial with the cylindrical insertion rod. In particular, the The optical component is a telescopic head group with a light source, wherein the light source is a point light source, a small hole diaphragm, an astigmatism sheet and a plane mirror arranged in sequence. 50° angle;

The inner cavity of the cylindrical plunger is also provided with an imaging component coaxial with it, and the imaging component is composed of a cross reticle, a focusing imaging lens group and a photosensitive array arranged in sequence on the same optical axis;

The input end of the point light source and the output end of the photosensitive array are both electrically connected to the display.

As a further improvement of the artillery target calibration device:

Preferably, the point light source, aperture diaphragm, astigmatism sheet, plane mirror and telescopic lens group are placed in the lens barrel; it is convenient for its installation and maintenance.

Preferably, the inner wall of the lens barrel and the cylindrical insertion rod is a tolerance fit, and the screw on the cylindrical insertion rod is fixedly connected with the lens barrel; it ensures that the optical axis of the lens barrel is coaxial with the mechanical axis of the cylindrical insertion rod, ensuring The accuracy of the utility model is within 1 mil.

Preferably, the point light source is an LED light source, or an incandescent light source, or a neon bulb light source; it not only makes the source of the point light source more abundant, but also facilitates its replacement after damage.

Preferably, the aperture of the pinhole diaphragm is 0.5 mm.

Preferably, the astigmatism sheet is opal glass sheet or frosted glass sheet.

Preferably, the plane mirror is covered with an anti-reflection film for visible light, and its transmittance is ≥ 98%, which ensures the clarity of the imaging of the reference object for calibration on the photosensitive array.

Preferably, the cross reticle, the focusing imaging lens group and the photosensitive array are placed in the imaging tube, and are fixedly connected to the end face of the cylindrical insertion rod through the flange plate and the fixing screw at one end of the imaging tube; Maintenance is also convenient for adjusting the deviation between the visual axis of the imaging tube and the mechanical axis of the cylindrical insertion rod.

Preferably, the focusing imaging lens group is composed of a first imaging lens and a second imaging lens connected in series.

Preferably, the photosensitive array is a CCD photosensitive array, or a CMOS photosensitive array.

Compared with the beneficial effects of the prior art, it is:

After adopting such a structure, the utility model does not require the target calibration personnel to climb up to the gun muzzle and use human eyes to approach the eyepiece to calibrate the target, and only needs the target calibration personnel to only pay attention to the image of the display, and also avoids the target calibration personnel's human eyes. Due to individual differences, the calibration of the artillery target is not only convenient, safe, intuitive and efficient, but also ensures the consistency of the calibration accuracy, and has the characteristics of reasonable structure, practicality and easy use; it can be widely used in various Various types of artillery, such as ground suppression artillery, anti-aircraft guns, anti-tank artillery, tank guns, aviation machine guns, naval guns, coastal guns and fortress guns.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a basic structure of the utility model.

FIG. 2 is a schematic diagram of a basic structure of the optical component in FIG. 1 .

FIG. 3 is a schematic diagram of a basic structure of the imaging component in FIG. 1 .

detailed description

The preferred mode of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

Referring to Figure 1, Figure 2 and Figure 3, the composition of the artillery target calibration device is as follows:

A reed 2 is placed outside the cylinder of the cylindrical insertion rod 3, and an optical component 1 and an imaging component 4 coaxial with it are built in the cylinder; wherein, the optical component 1 is a telescopic lens group 12 with a light source; the light sources are arranged in sequence Point light source 14, pinhole diaphragm 15, astigmatism sheet 16 and plane mirror 11, plane mirror 11 is located on the incident light path of telescopic lens group 12, and is 45 (can be 40～50) ° angle with incident light path. Aforesaid point light source 14, pinhole diaphragm 15, astigmatism sheet 16, plane mirror 11 and telescopic lens group 12 are placed in lens barrel 13, and this lens barrel 13 is the tolerance fit with the inner wall of cylindrical insertion rod 3, and through cylindrical shape The screw on the insertion rod 3 is fixedly connected with the lens barrel 13 . The above-mentioned point light source 14 is an LED light source (or an incandescent light source, or a neon bulb light source), the aperture of the aperture diaphragm 15 is 0.5mm, and the astigmatism sheet 16 is an opal glass sheet (or frosted glass sheet), and the plane mirror 11 is covered with Visible light anti-reflection coating, its transmittance ≥ 98%.

The imaging component 4 is composed of a cross reticle 41, a focusing imaging lens group and a photosensitive array 44 arranged in sequence on the same optical axis; wherein the cross reticle 41, the focusing imaging lens group and the photosensitive array 44 are placed in the imaging tube 46, and The flange plate 45 and the fixing screw at one end of the imaging tube 46 are fixedly connected with the end face of the cylindrical insertion rod 3 . The above-mentioned focus imaging lens group is composed of a first imaging lens 42 and a second imaging lens 43 connected in series, and the photosensitive array 44 is a CCD photosensitive array (or a CMOS photosensitive array).

The input end of the point light source 14 and the output end of the photosensitive array 44 are both electrically connected to the display 5 .

The working mechanism of the present utility model is that the reference object located at a distance is imaged on the photosensitive array 44 through the plane mirror 11 and the telescopic lens group 12 of the optical component 1, and the cross reticle 41 and the focusing imaging lens composition of the imaging component 4; The point light source 14 of the optical component 1 illuminates the reticle 41 of the imaging component 4 through the aperture diaphragm 15, the astigmatism sheet 16, the plane mirror 11 and the telescopic lens group 12, and the cross on the reticle 41 The filament is imaged on the photosensitive array 44 through the focusing imaging lens group of the imaging component 4 . The photosensitive array 44 transmits the above-mentioned imaging information to the screen of the display 5 via a cable for display. The display 5 provides power for the point light source 14 at the same time.

When in use, first aim the fire control radar of the artillery at a long-distance reference object—a certain star point in the starry sky, so that the star point coincides with the center of the cross target surface of the fire control radar; then insert the utility model into the barrel of the artillery Afterwards, adjust the pitch angle and the azimuth angle of the artillery, make the star point shown on the display 5 coincide with the center of the crosshair image, and promptly complete the calibration target work of the artillery.

Apparently, those skilled in the art can make various changes and modifications to the artillery target calibration device of the present utility model without departing from the spirit and scope of the present utility model. In this way, if these modifications and variations to the present utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (10)

1. A gun target calibration device, comprising a cylindrical plunger (3) with a reed (2) outside it, and an optical component (1) coaxial with the tubular plunger (3), characterized in that: The optical component (1) is a telescopic lens group (12) with a light source, wherein the light source is a point light source (14), a small hole diaphragm (15), a diffuser (16) and a plane mirror (11) arranged in sequence , the plane mirror (11) is located on the incident light path of the telescopic lens group (12), and forms an angle of 40 to 50° with the incident light path; The inner cavity of the cylindrical plunger (3) is also provided with an imaging component (4) coaxial therewith, and the imaging component (4) consists of a cross reticle (41) sequentially arranged on the same optical axis, a focusing imaging Composition of lens group and photosensitive array (44); The input end of the point light source (14) and the output end of the photosensitive array (44) are both electrically connected to the display (5). 2. The artillery target calibration device according to claim 1, characterized in that point light source (14), aperture diaphragm (15), astigmatism sheet (16), flat mirror (11) and telescopic lens group (12) are placed in the lens barrel (13). 3. The artillery target calibration device according to claim 2, characterized in that the lens barrel (13) and the inner wall of the cylindrical insertion rod (3) are tolerance fit, and the screw on the cylindrical insertion rod (3) and the mirror Tube (13) is fixedly connected. 4. The artillery target calibration device according to claim 1, characterized in that the point light source (14) is an LED light source, or an incandescent light source, or a neon bulb light source. 5. The artillery target calibration device according to claim 1, characterized in that the aperture of the aperture diaphragm (15) is 0.5 mm. 6. The artillery target calibration device according to claim 1, characterized in that the astigmatism sheet (16) is an opal glass sheet or a frosted glass sheet. 7. The artillery target calibration device according to claim 1, characterized in that the plane mirror (11) is covered with a visible light anti-reflection film, and its transmittance is more than or equal to 98%. 8. The artillery target calibration device according to claim 1, characterized in that the cross reticle (41), the focusing imaging lens group and the photosensitive array (44) are placed in the imaging tube (46), and through the imaging tube (46) ) The flange plate (45) at one end and the set screw are fixedly connected with the end face of the tubular plunger (3). 9. The artillery target calibration device according to claim 1, characterized in that the focusing imaging lens group is composed of a first imaging lens (42) and a second imaging lens (43) connected in series. 10. The artillery target calibration device according to claim 1, characterized in that the photosensitive array (44) is a CCD photosensitive array, or a CMOS photosensitive array.