CN218673352U - Improved antiaircraft gun target correcting mirror - Google Patents

Abstract

The utility model discloses an improved generation antiaircraft gun boresight, including body subassembly (1), objective assembly (2), eyepiece assembly (3) and installation axle (4), the front end of body subassembly (1) is fixed in objective assembly (2), the rear end of body subassembly (1) is fixed in installation axle (4), the top at body subassembly (1) is installed along axial book 90 in subassembly (3) of visualing. The utility model discloses improve antiaircraft gun boresight compact structure, interference immunity are strong, except can satisfying the standard school of sighting line with other photoelectric equipment under the artillery normal atmospheric temperature, especially solved the problem that ordinary boresight lens proofread the precision and worsen under high and low temperature environment (-40 ℃ -50 ℃).

Description

Improved antiaircraft gun target correcting mirror

Technical Field

The utility model relates to a correcting mirror technical field, concretely relates to improved generation antiaircraft gun boresight.

Background

The parallelism of the gun barrel axis and the photoelectric aiming axis in the gun system directly influences the shooting precision of the gun, and the prior parallelism calibration method generally adopts a target plate parallelism adjusting method or a remote target method. The target correcting lens positioning shaft is inserted into a gun barrel, the axis of the gun barrel is transferred to a target correcting lens aiming line, a target correcting person aims at a corresponding cross target on a target plate through the target correcting lens to realize the parallelism calibration of the gun and the photoelectric aiming axis, and the calibration precision of a gun system is determined by the precision and the stability of the target correcting lens aiming line, so that the shooting precision of the gun is determined. The coincidence degree of the sighting line and the positioning shaft of the existing gun target calibration lens can be adjusted to 0.1 mil at normal temperature, but when the gun target calibration lens is used in high and low temperature environments, particularly under the condition of low temperature of minus 40 ℃, due to shrinkage and deformation of parts, the coincidence degree of the sighting line and the positioning shaft is changed to 0.4 mil at most, the use requirement is obviously exceeded, and the shooting efficiency of the gun is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an improved generation antiaircraft gun borescope, reduce borescope's deviation under high and low temperature environment through shortening optical path length, increase positional stability.

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides an improved generation antiaircraft gun boresight mirror, includes body subassembly, objective lens subassembly, eyepiece subassembly and installation axle, objective lens subassembly fixed mounting is in the front end of body subassembly, the rear end at the body subassembly is fixed to the installation axle, eyepiece subassembly is along the top at the body subassembly of axial rotation 90.

Specifically, the body subassembly includes body, pentagon prism, optics graticule, spring plate, housing screw, dog screw, installation axle mount pad, the pentagon prism passes through spring plate and housing screw to be installed in the inside of body, optics graticule is glued in the seat hole of body with the glue, the dog passes through the outside of dog fix with screw at the body, and housing screw is located the dog.

Specifically, objective lens subassembly includes the lens cone, circular optical wedge seat is installed at both ends about in the lens cone front end cavity, circular optical wedge seat surface interval 30 is equipped with a plurality of regulation holes, it has two sets of optical wedge group to bond through silica gel on the circular optical wedge seat, install two veneer objective in the lens cone rear end cavity to compress tightly through the clamping ring.

Specifically, installation axle one end is provided with the conical surface, and the other end is provided with the elasticity card pipe, and the middle part position is provided with the face of cylinder, is provided with interior locating hole at the link with the body.

Specifically, the included angle between the two reflecting surfaces of the pentagonal prism is 45 degrees.

Specifically, the optical wedge group is composed of a first optical wedge and a second optical wedge, the first optical wedge is made of K9, and the second optical wedge is made of ZF2.

Specifically, the installation axle sets up interior locating hole, installation axle one end is packed into in the installation axle mount pad, and interior locating hole corresponds with the locating hole in the installation axle mount pad.

Based on the technical scheme, the following technical effects can be generated:

1. the target correcting lens realizes the linear adjustability of aiming lines through the 360-degree rotation of the two optical wedge groups, and each optical wedge group realizes achromatization through the combination of different optical materials, thereby avoiding the imaging quality of an optical system of the target correcting lens from being deteriorated and influencing the aiming precision.

2. The light rays are stably turned by 90 degrees through the pentagonal prism with the included angle of 45 degrees between the two reflecting surfaces, and the pentagonal prism is not influenced by the rotation of the pentagonal prism.

3. The utility model discloses set up the cooperation that cylindrical surface realized and barrel inner wall on the location axle, increase the school target mirror location reliability.

4. The utility model discloses bond optics graticule on the body, pentaprism is with clamp plate snap-on in the body bottom surface, no middle transition part, reduces the deformation under the high low temperature environment, has improved the environmental suitability of school target mirror.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the body assembly of the present invention;

fig. 3 is a sectional view of the installation shaft of the present invention;

FIG. 4 is a diagram of an optical system according to the present invention;

fig. 5 is a cross-sectional view of an objective lens assembly of the present invention;

fig. 6 is a cross-sectional view of the pentaprism of the present invention;

fig. 7 is a cross-sectional view of the optical wedge assembly of the present invention;

in the figure, 1-body component, 2-objective component, 3-eyepiece component, 4-installation shaft, 5-body, 6-pentagonal prism, 7-optical reticle, 8-spring pressure plate, 9-compression screw, 10-stop, 11-stop screw, 12-installation shaft installation seat, 13-installation shaft positioning hole, 14-conical surface, 15-cylindrical surface, 16-elastic clamping tube, 17-optical wedge group, 18-objective group, 19-triangular prism, 20-objective tube, 21-optical wedge seat, 22-objective pressing ring, 23-optical wedge I, 23-optical wedge II.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the improved antiaircraft gun target calibration lens comprises a body assembly 1, an objective lens assembly 2, an eyepiece assembly 3 and a mounting shaft 4, wherein the objective lens assembly 2 is fixedly mounted at the front end of the body assembly 1, the mounting shaft 4 is fixed at the rear end of the body assembly 1, and the eyepiece assembly 3 is axially rotated by 90 degrees and mounted above the body assembly 1.

As shown in fig. 2, the body assembly 1 includes a body 5, a pentagonal prism 6, an optical reticle 7, a spring pressing plate 8, a compression screw 9, a stopper 10, a stopper screw 11, and an installation shaft mounting seat 12, the pentagonal prism 6 is installed inside the body 5 through the spring pressing plate 8 and the compression screw 9, the optical reticle 7 is adhered in a seat hole of the body 5 with glue, the stopper 10 is fixed outside the body 5 through the stopper screw 11, and the compression screw 9 is located on the stopper 10, so as to reduce the change of an optical axis caused by slight change of the position of the pentagonal prism 6, the installation mode of the pentagonal prism 6 is improved, the pentagonal prism is directly installed on the inner bottom surface of the body 5 without an intermediate transition link, and then the prism is compressed through the spring pressing plate 8 and the compression screw 9; the facet of the pentagonal prism 6 is positioned by the stopper 10 and the stopper screw 11, and the pentagonal prism 6 is prevented from moving.

As shown in fig. 5, the objective lens assembly 2 includes a lens barrel 19, circular optical wedge seats 20 are installed at the upper and lower ends in a cavity at the front end of the lens barrel 19, a plurality of adjusting holes are formed in the surface of the circular optical wedge seats 20 at intervals of 30 °, two optical wedge groups 17 are bonded to the circular optical wedge seats 20 through silica gel, a double-cemented objective lens 18 is installed in the cavity at the rear end of the lens barrel 19 and is pressed by a pressing ring 21, as shown in fig. 5, the optical wedge groups 17 can be indirectly adjusted by adjusting the adjusting holes in the optical wedge seats 20, the rotation angle of the two optical wedge groups 17 relative to the optical axis is adjusted to adjust the offset of the optical axis, and the coaxial deviation between the optical axis and the mechanical axis is less than or equal to 0.1 dense position.

As shown in fig. 3, one end of the mounting shaft 4 is provided with a conical surface 14, the other end is provided with an elastic clamping tube 16, the middle position is provided with a cylindrical surface 15, an inner positioning hole 13 is arranged at the connecting end with the body 5, in order to ensure that the mounting shaft 4 is tightly matched with a gun barrel without a gap after being inserted into the gun barrel, the left end of the mounting shaft 4 is provided with a conical matching surface with an angle of 1 degree, and the conical surface and the gun barrel are relieved from eliminating a radial gap; an elastic clamping tube is arranged at the right end of the mounting shaft 4, the outer diameter of the elastic clamping tube is 0.5mm larger than the inner diameter of the gun barrel, so that on one hand, the radial clearance between the elastic clamping tube and the gun barrel is eliminated, and on the other hand, the mounting shaft is prevented from being clamped with the gun barrel after being inserted into the gun barrel; the middle part of the mounting shaft 4 is provided with a cylindrical surface with the length of 150mm, and the cylindrical surface is matched with an inner hole of the gun barrel, so that the influence of gravity on the positioning of the target correcting lens during target correction can be prevented.

As shown in fig. 6 and 4, the included angle between the two reflecting surfaces of the pentagonal prism 6 is 45 °, and the included angle between the emergent ray and the incident ray is 2 times of the included angle between the two reflecting surfaces of 45 °, so that the emergent ray can be stably turned by 90 ° without being affected by the plane rotation angle of the pentagonal prism 6. Meanwhile, light rays are reflected twice in the pentagonal prism 6, the refracted optical path is more compared with that of a right-angle prism, and the optical reticle 7 positioned on the focal plane is closer to the pentagonal prism 6, so that the whole system is more compact, and the influence of structural deformation on precision is less under high-temperature and low-temperature environments.

As shown in fig. 7, the optical wedge group 17 is composed of a first optical wedge 22 and a second optical wedge 23, the first optical wedge 22 is made of K9, and the second optical wedge 23 is made of ZF2, so that chromatic aberration caused by a wedge angle to the whole optical system can be eliminated.

The installation axle 4 sets up interior locating hole 13, installation axle 4 one end is packed into in installation axle mount pad 12, and interior locating hole 13 corresponds with the locating hole in installation axle mount pad 12.

The specific implementation process comprises the following steps:

the utility model discloses a working process as follows: when the device is used, one end of the elastic clamping tube 16 of the installation shaft 4 is inserted into a gun barrel of an artillery from a gun muzzle, the artillery is operated to enable the gun barrel to point to a target, as shown in an optical system shown in figure 4, target surface light passes through the optical wedge group 17 and the objective lens group 18 and is reflected twice by the pentagonal prism 6, a light path is turned by 90 degrees to be imaged on a division plane of the optical division plate 7, a division and a target plate image are imaged at an eye point position through the ocular lens group 3, a target corrector can simultaneously observe the images of the division and the target plate image, and the relative angle of the optical wedge group 17 is turned according to the deviation condition of the cross center of the target plate and the cross center of the division, so that the parallelism calibration of the gun barrel and an electro-optical sighting axis is realized.

The present invention has been described in detail with reference to the accompanying drawings and the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (7)

1. The improved antiaircraft gun target calibration lens is characterized by comprising a body assembly (1), an objective lens assembly (2), an eyepiece assembly (3) and an installation shaft (4), wherein the objective lens assembly (2) is fixedly installed at the front end of the body assembly (1), the installation shaft (4) is fixed at the rear end of the body assembly (1), and the eyepiece assembly (3) is installed above the body assembly (1) along the axial rotation of 90 degrees.

2. The improved antiaircraft gun borescope according to claim 1, wherein the body assembly (1) comprises a body (5), a pentagonal prism (6), an optical reticle (7), a spring pressing plate (8), a compression screw (9), a stop block (10), a stop block screw (11) and a mounting shaft mounting seat (12), the pentagonal prism (6) is mounted inside the body (5) through the spring pressing plate (8) and the compression screw (9), the optical reticle (7) is glued in a seat hole of the body (5) by glue, the stop block (10) is fixed outside the body (5) through the stop block screw (11), and the compression screw (9) is positioned on the stop block (10).

3. The improved antiaircraft gun target calibration lens according to claim 1, wherein the objective lens assembly (2) comprises a lens barrel (19), circular optical wedge seats (20) are installed at the upper and lower ends in a cavity at the front end of the lens barrel (19), a plurality of adjusting holes are formed in the surfaces of the optical wedge seats (20) at intervals of 30 degrees, two optical wedge groups (17) are bonded on the circular optical wedge seats (20) through silica gel, and a double-glued objective lens (18) is installed in a cavity at the rear end of the lens barrel (19) and is pressed tightly through a pressing ring (21).

4. The improved antiaircraft gun borescope according to claim 1, wherein the mounting shaft (4) is provided with a conical surface (14) at one end, an elastic clamping tube (16) at the other end, a cylindrical surface (15) at the middle position, and an inner positioning hole (13) at the end connected with the body (5).

5. The improved antiaircraft gun borescope according to claim 2, wherein the angle between the two reflecting surfaces of the pentagonal prism (6) is 45 °.

6. The improved antiaircraft gun borescope according to claim 3, wherein the optical wedge set (17) is composed of a first optical wedge (22) and a second optical wedge (23), the material of the first optical wedge (22) is K9, and the material of the second optical wedge (23) is ZF2.

7. An improved antiaircraft gun borescope according to claim 4, wherein the mounting shaft (4) is provided with an internal locating hole (13), one end of the mounting shaft (4) is fitted into the mounting shaft mounting seat (12), and the internal locating hole (13) corresponds to the locating hole in the mounting shaft mounting seat (12).

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