CN219064301U

CN219064301U - Mirror gun connecting mechanism with high repeated clamping precision

Info

Publication number: CN219064301U
Application number: CN202223382985.8U
Authority: CN
Inventors: 韦湘宜; 吴轶刚; 高赫; 吴洁明; 叶兵; 王志强; 周晖; 孟海能
Original assignee: JIANGSU NORTH HUGUANG OPTICS ELECTRONICS CO Ltd
Current assignee: JIANGSU NORTH HUGUANG OPTICS ELECTRONICS CO Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-23
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to a mirror gun connecting mechanism with high repeated clamping precision, which comprises the following components: the middle part of the shell is provided with a screw hole; a compacting surface which is processed on one surface of the shell and the horizontal height of which is lower than that of the screw hole 1. Compared with the prior art, the utility model has the advantages that: the movable dovetail is provided with a locking part (a locking screw and a locking nut), the locking point is aligned with the center position of two positioning points of the fixed dovetail, so that when the movable dovetail is locked, the center of the fixed dovetail is subjected to the tension perpendicular to the dovetail surface, the position and the direction of the tension relative to the dovetail positioning surface are always unchanged, the length of the movable dovetail matching surface is shorter, the movable dovetail matching surface is arranged at the center position of the whole length and corresponds to a fulcrum, and three-point fastening is formed for the whole locking mechanism, so that the movable dovetail is a stable fastening structure.

Description

Mirror gun connecting mechanism with high repeated clamping precision

Technical Field

The utility model relates to a sighting telescope technology, in particular to a telescope gun connecting mechanism with high repeated clamping precision.

Background

At present, the connection interface of the sighting telescope is standardized gradually, a Picatinny dovetail interface is mostly adopted, a connection seat locking mechanism mainly comprises a fixed dovetail part, a movable dovetail part, a locking spanner, a screw rod and the like, a shooter fixes the dovetail of the connection seat to be attached to one side of the dovetail of the gun epithelial card during locking, the movable dovetail is pushed to be attached to the other side of the dovetail on the gun through rotating the locking spanner, and the locking spanner is screwed to enable the connection seat to be held tightly on the dovetail surface of the dovetail on the gun, so that locking is realized.

The fixed dovetail of the connecting seat plays a role in positioning, and the movable dovetail plays a role in locking. To ensure the stability of repeated card loading, the requirements of two aspects should be satisfied: 1) The positioning stability is good when the fixed dovetail is repeatedly clamped, and the fixed dovetail positioning surface is ensured to have a longer length; 2) The locking force needs to be reasonably distributed, so that the consistency of the locking force received by the contact surface of the dovetail surface on the gun and the two positioning surfaces of the connecting seat after repeated clamping is guaranteed, and the consistency of the contact area is good.

In the prior art, the requirement 1) is followed, in the prior art, the fixed dovetail (the length of the matching surface is longer, the middle part is removed, two ends are respectively provided with a small section of positioning surface matched with the dovetail surface of the gun, and the longer the positioning surface is, the middle part is not matched, so that the structure meets the requirement of high matching precision; the prior art does not meet the requirement 2), and the structure of the connecting seat has two forms: the connecting seat adopts a screw and nut locking mode, the movable dovetail also adopts the same structure of the fixed dovetail, the matching length is longer, the middle part is removed, and a small section of locking surface combined with the dovetail surface of the gun is reserved at two ends; in another form, the connector has a locking screw and a locking nut on each of the two locking surfaces, and the two locking nuts are locked during locking.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects that in the prior art, the structure form of the connecting seat adopts a two-point positioning and four-point fixed locking mode (wherein two points are positioning points), and as the structure is not provided with a mechanism for limiting locking force, repeated clamping is unstable due to the following two factors:

first aspect factor: because two lock nuts around in the second kind connecting seat locking structure are shooter through rotatory spanner locking, all rely on the sensation locking of shooter, can cause two locking dynamics around like this different, cause the objective optical axis to have the deviation for the angle of barrel. The first connecting seat has the advantages that as the two locking surfaces are arranged at the two ends of the movable dovetail, the movable dovetail swings in the locking process, the surface which is in contact and locking with the fixed dovetail cannot keep good consistency, the stress of the positioning surface is inconsistent, a certain deflection angle is generated between the optical axis of the objective lens and the gun barrel, and the phenomenon of poor repeated clamping precision is caused;

second aspect factor: in the second connecting seat locking process, if the front locking nut is locked first, the objective lens deflects to the left relative to the gun barrel, and the locking force of the rear locking nut is larger, so that the angle of the objective lens cannot be corrected. Similarly, if the back lock nut is locked first, the objective deflects an angle to the right relative to the gun barrel, and the locking force of the front lock nut is larger, so that the deflection angle of the optical axis of the objective cannot be corrected, and the problem of poor repeated clamping precision is generated.

In order to solve the technical problems, the utility model provides a mirror gun connecting mechanism with high repeated clamping precision, which comprises the following components:

the middle part of the shell is provided with a screw hole 1;

the compacting surface 2 is processed on one surface of the shell, and the horizontal height of the compacting surface 2 is lower than that of the screw hole 1.

Compared with the prior art, the utility model has the advantages that: the movable dovetail is provided with a locking part (a locking screw and a locking nut), the locking point is aligned with the center position of two positioning points of the fixed dovetail, so that when the movable dovetail is locked, the center of the fixed dovetail is subjected to the tension perpendicular to the dovetail surface, the position and the direction of the tension relative to the dovetail positioning surface are always unchanged, the length of the movable dovetail matching surface is shorter, the movable dovetail matching surface is arranged at the center position of the whole length and corresponds to a fulcrum, and three-point fastening is formed for the whole locking mechanism, so that the movable dovetail is a stable fastening structure.

Preferably, the shell is arranged on the movable dovetail, and the shell passes through the screw hole 1 through the matched screw and is additionally provided with an adaptive nut at the end of the screw to realize fixed connection.

Preferably, the compression surface 2 is arranged in a position in the middle of the housing and has a length shorter than the length of the lower edge of the housing.

Preferably, the contact points of the tightening surface 2 and the two matched positioning surfaces form a triangular contact enclasping structure.

Preferably, the shell is provided with a locking point, the locking point is aligned with the center position of two positioning points of the dovetail, the center of the dovetail is stressed by the pulling force perpendicular to the dovetail surface, and the position and the direction of the pulling force relative to the dovetail positioning surface are unchanged when the shell is locked.

Preferably, the tightening surface 2 is arranged in the middle of the movable dovetail, and forms a triangular contact enclasping structure with the contact points of the two positioning surfaces, the central positions of the two positioning surfaces of the fixed dovetail are subjected to tensile force in the corresponding direction, the contact surface of the tightening surface 2 and the movable dovetail is short, and the rotation moment generated by two positioning points of the fixed dovetail which are longer is small.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

FIG. 1 is a schematic diagram of the front structure of a gun connection mechanism with high repeated clamping accuracy of the present utility model;

fig. 2 is a schematic side view of the mirror gun connection mechanism of the present utility model.

Detailed Description

As shown in fig. 1, the present embodiment provides a mirror gun connection mechanism with high repeated clamping accuracy, a housing, and a screw hole 1 formed in the middle of the housing; the constriction surface 2, the constriction surface 2 is machined on one side of the housing and is lower than the height of the screw hole 1. It can be seen that the utility model adopts a structure that a locking component (a locking screw and a locking nut) is arranged on the moving dovetail, the locking point is aligned to the center position of two locating points of the fixed dovetail, thus, when the locking is carried out, the center of the fixed dovetail is subjected to the pulling force perpendicular to the dovetail locating surface, the position and the direction of the pulling force relative to the dovetail locating surface are always unchanged, if the moving dovetail adopts two sections of dovetail locking surfaces (two fulcrums) at two ends of the first connecting seat in the prior art, the swinging occurs in the locking process of the moving dovetail, the contact surface of the locking surface and the dovetail locating surface after each time of clamping can be different, the direction of the fixed dovetail pulling force can be changed, the relative angle between the optical axis of the objective lens and the gun barrel can be changed, and the change amount of the optical axis of the sighting telescope relative to the gun barrel angle after repeated clamping is larger.

In one embodiment of the utility model, as shown in fig. 2, the housing is provided on the moving dovetail, the housing is fixedly connected by a mating screw passing through the screw hole 1 and attaching an adapted nut to the end of the screw. The device adopts a single screw rod and a single nut, is the same as the structure form of the first connecting seat, does not adopt the structure form of the second connecting seat, adopts a novel movable dovetail structure, is provided with a short locking surface at one section in the middle of the movable dovetail, forms a triangular contact enclasping structure with two positioning surface contact points, and is provided with a pulling force along the direction of an arrow in the drawing, the central position of the two positioning surfaces of the fixed dovetail is provided with a small rotating moment generated by the two positioning points with a long fixed dovetail due to the short contact surface of the movable dovetail, and the change amount of the deflection angle of an optical axis of an objective lens and a gun barrel generated after repeated clamping is small, so the repeated clamping precision is high.

In one embodiment of the utility model, as shown in fig. 1 and 2, the compression surface 2 is provided in a position in the middle of the housing and is of a short length. The contact points of the tightening surface 2 and the two matched positioning surfaces form a triangular contact enclasping structure. The locking mechanism of the locking spanner in the middle is adopted, only one locking fulcrum is adopted, two positioning points are arranged on the fixed dovetail, the locking force is in the middle, the consistency of the contact surfaces of the two fixed dovetail surfaces and the dovetail surface on the gun after repeated clamping is good, the consistency of the forces received by the two fixed dovetail surfaces after repeated clamping is good, and the repeated clamping precision can reach two thousandths.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. The utility model provides a mirror rifle coupling mechanism with high repetition dress card precision which characterized in that includes:

the middle part of the shell is provided with a screw hole (1);

and the tightening surface (2) is processed on one surface of the shell, and the horizontal height of the tightening surface (2) is lower than that of the screw hole (1).

2. The mirror gun connection mechanism of claim 1, wherein: the shell is arranged on the movable dovetail, and the shell passes through the screw hole (1) through the matched screw and is additionally provided with an adaptive nut at the end part of the screw to realize fixed connection.

3. The mirror gun connection mechanism of claim 1, wherein: the tightening surface (2) is arranged in the middle of the shell and has a length shorter than the length of the lower edge of the shell.

4. The mirror gun connection mechanism of claim 1, wherein: the contact points of the tightening surface (2) and the two matched positioning surfaces form a triangular contact enclasping structure.

5. The mirror gun connection mechanism of claim 1, wherein: the shell is provided with a locking point, the locking point is aligned to the center of two positioning points of the dovetail, the center of the dovetail is subjected to the tensile force perpendicular to the dovetail surface, and the position and the direction of the tensile force relative to the dovetail positioning surface are unchanged when the shell is locked.

6. The mirror gun connection mechanism of claim 1, wherein: the tightening surface (2) is arranged in the middle of the movable dovetail, and after a triangular contact enclasping structure is formed between the tightening surface and the contact point of the two positioning surfaces, the center positions of the two positioning surfaces of the fixed dovetail are subjected to tensile forces in corresponding directions, the contact surface of the tightening surface (2) and the movable dovetail is short, and the rotation moment generated by two positioning points with longer fixed dovetail is small.