A laser calibration device and method based on main and auxiliary calibrators cooperation

Abstract

The application discloses a laser calibration device and method based on main and auxiliary calibrators, relates to the technical field of laser calibration, and is used for calibrating different caliber firearms. The laser calibration device comprises a main calibrator and an auxiliary calibrator. The main calibrator is arranged in a barrel of the firearm, and the auxiliary calibrator is clamped to the lower edge of the barrel. The main calibrator of the laser calibration device comprises a laser module, a plug rod assembly and an adapter. The auxiliary calibrator of the laser calibration device comprises a guide rail assembly, an irradiation module and an adjusting assembly, which is used for adjusting the irradiation direction of the irradiation light beam emitted by the irradiation module. The automatic centering of the laser module and the plug rod assembly is realized, and the influence of disassembling and assembling the plug rod assembly on coaxiality is effectively avoided. Meanwhile, the adapter adopts a radial expansion structure, tightly abuts against the inner wall of the barrel, cooperates with the positioning of the muzzle conical end face, keeps the laser light beam highly coaxial with the barrel axis, and greatly improves the calibration precision of the firearm.

Description

Technical Field

[0001] This application relates to the field of laser calibration technology, and in particular to a laser calibration device and method based on the collaboration of master and auxiliary calibrators. Background Technology

[0002] During the use and testing of firearms, the calibration of the sight is a crucial step in ensuring shooting accuracy. Laser calibration devices are usually used to assist in the calibration of the sight.

[0003] Currently, most commonly used laser calibration devices employ insert-type or external-mounted structures, using a laser beam to simulate the barrel's axis for calibration. However, when a single insert-type laser calibration device is applied to firearms such as those held in one hand, the device has few support points, making it prone to radial wobble, tilting, or eccentricity within the barrel. This makes it difficult to ensure that the calibration beam emitted by the laser device is coaxial with the barrel axis, resulting in low calibration accuracy. While an external-mounted laser calibration device, fixed to the barrel by a rail, can be mounted for extended periods, it is difficult to guarantee parallelism with the barrel and coaxiality with the muzzle axis, leading to low aiming accuracy and consequently, low calibration precision. Summary of the Invention

[0004] The main purpose of this application is to provide a laser calibration device and method based on the collaboration of master and auxiliary calibrators, which aims to solve the problem of low calibration accuracy in traditional laser calibration devices.

[0005] To achieve the above objectives, this application provides a laser calibration device based on the cooperation of a main and auxiliary calibrators for calibrating firearms of different calibers. The laser calibration device includes a main calibrator and an auxiliary calibrator; the main calibrator is inserted into the barrel; and the auxiliary calibrator is clamped at the lower part of the barrel. The main calibrator of the laser calibration device includes: A laser module has a first end and a second end disposed opposite to each other in a first direction. The first end of the laser module is used to emit a first laser beam, and the second end of the laser module has a battery compartment. The first direction is the axis of the laser beam. The insertion rod assembly has a connecting portion and an insertion portion disposed opposite to each other in a first direction; the connecting portion of the insertion rod assembly is connected to the second end of the laser module, the axial direction of the insertion rod assembly coincides with the axial direction of the laser beam, and the insertion portion of the insertion rod assembly passes through the gun barrel; the second direction is perpendicular to the first direction; An adapter, installed at one end of the plug-in portion, is used for coaxial positioning of the barrels of firearms of different calibers; the adapter can expand along a second direction to abut against the inner wall of the barrel, so that the plug-in assembly is coaxial with the barrel; the second direction is radial to the plug-in assembly; The auxiliary calibrator of the laser calibration device includes: A guide rail assembly for securing the auxiliary calibrator to the lower edge of the barrel; An illumination module includes a laser emitting unit and an illumination emitting unit; the laser emitting unit is used to emit a second laser beam; the illumination emitting unit is used to emit an illumination beam, and the illumination spots of the laser beam and the illumination beam are focused in the same direction; An adjustment component is used to adjust the irradiation direction of the irradiation beam emitted by the irradiation module; The laser beam is coaxial with the extended line of the bore axis of the gun barrel; one end of the plug-in part of the plug-in assembly is provided with an adapter interface; the adapter interface is used to connect an adapter that matches the barrel of the firearm of different calibers.

[0006] Optionally, the second end of the laser module is provided with a first conical guide surface, and the connecting part of the plug assembly is provided with a second conical guide surface; the first conical guide surface and the second conical guide surface fit together and abut against each other; the second end of the laser module and the connecting part of the plug assembly are connected by threads so that the first conical guide surface and the second conical guide surface fit tightly together.

[0007] Optionally, the insertion part of the plug assembly includes a snap-fit ​​part and an insertion part; the snap-fit ​​part is provided with a tapered slope; wherein, when the insertion part of the plug assembly passes through the gun barrel, the tapered slope of the snap-fit ​​part snaps against the muzzle of the gun barrel.

[0008] Optionally, the adapter includes an elastically deformable portion and a fixing screw; The elastic deformation portion of the adapter is connected to the insertion portion of the plug assembly via the fixing screw, wherein the elastic deformation portion of the adapter expands to abut against the inner wall of the barrel as the fixing screw is screwed in.

[0009] Optionally, the auxiliary calibrator further includes: a connecting wire assembly; for synchronizing the emission of the laser beam from the illumination module of the auxiliary calibrator with the firing of the firearm.

[0010] Optionally, the irradiation assembly further includes a laser switching switch and an illumination switching switch: the switching switch is used to switch the mode of the laser source of the laser unit to emit laser beams of different wavelengths; The lighting switching switch is used to switch the frequency of the lighting beam of the lighting unit to emit lighting beams with different intermittent durations.

[0011] Optionally, the adjustment assembly includes a ballistic adjustment unit and a wind deflection adjustment unit: The ballistic adjustment unit is used to vertically adjust the irradiation module so that the laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide vertically with the extension line of the bore center axis of the firearm. The wind deflection adjustment unit is used to adjust the illumination module horizontally so that the laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the horizontal extension of the bore axis of the firearm.

[0012] Optionally, the laser module further includes a calibration adjustment knob, which is used to adjust the direction of the laser beam emitted by the laser module.

[0013] Furthermore, this application also provides a laser calibration method based on the collaboration of master and auxiliary calibrators, applied to the aforementioned laser calibration device, wherein the laser calibration method includes: The main calibrator is inserted into the muzzle of the firearm, and the adapter is expanded by rotating the plug assembly of the main calibrator to fit tightly against the inner wall of the barrel of the firearm. The auxiliary calibrator is mounted on the lower edge of the barrel of the firearm via a guide rail assembly, and the illumination direction of the illumination assembly of the auxiliary calibrator is changed by adjusting the adjustment assembly of the auxiliary calibrator. Observe the deviation between the spot of the first laser beam of the main calibrator and the target point corresponding to the sight of the firearm, and adjust the calibration adjustment knob until the spot of the first laser beam completely coincides with the target point; When the spot of the first laser beam of the main calibrator completely coincides with the target point corresponding to the sight of the firearm, the adjustment component of the auxiliary calibrator is adjusted until the spot of the second laser beam completely coincides with the target point.

[0014] Optionally, after mounting the auxiliary calibrator of the laser calibration device to the lower edge of the barrel of the firearm via the rail assembly, the method further includes: Observe the spot of the first laser beam of the main calibrator, the spot of the second laser beam of the auxiliary calibrator, and the deviation of the target point corresponding to the sight of the firearm; Simultaneously adjust the calibration adjustment knob and the adjustment components of the auxiliary calibrator until the spot of the first laser beam and the spot of the second laser beam completely coincide with the target point; Remove the main calibrator and keep the auxiliary calibrator attached to the lower edge of the barrel of the firearm for simulated firing.

[0015] Optionally, the calibration adjustment knob includes a windage adjustment knob and a vertical adjustment knob; the step of observing the deviation between the spot of the first laser beam of the main calibrator and the front sight of the firearm, and adjusting the calibration adjustment knob includes: Observe the deviation of the spot of the first laser beam from the vertical and horizontal directions of the sight of the firearm; if the spot of the first laser beam is deviated to the right in the horizontal direction, turn the windage adjustment knob clockwise; if the spot of the first laser beam is deviated to the left in the horizontal direction, turn the windage adjustment knob counterclockwise; if the spot of the first laser beam is deviated to the upper vertical direction, turn the vertical adjustment knob clockwise; if the spot of the first laser beam is deviated to the lower vertical direction, turn the vertical adjustment knob counterclockwise.

[0016] This application proposes a laser calibration device based on the coordinated operation of a main and auxiliary calibrators, comprising a main calibrator and an auxiliary calibrator. During firearm calibration, the insertion rod assembly of the main calibrator is first inserted into the barrel. By rotating the insertion rod assembly, the elastic deformation part of the adapter expands to contact the inner wall of the barrel, thereby aligning the axial direction of the insertion rod assembly with the bore axis of the barrel. Simultaneously, the auxiliary calibrator is mounted on the lower edge of the firearm's barrel via a guide rail assembly. By adjusting the calibration adjustment knob, the laser beam's illumination spot aligns with the firearm's front sight. The laser beams are completely aligned with the target point, and the illumination spot of the auxiliary calibrator's illumination component is adjusted to completely coincide with the target point. This ensures that the two sets of lasers emitted by the laser calibration device are aligned with the extended line of the barrel's bore axis, achieving automatic alignment of the laser module and the insertion rod assembly. This effectively avoids the impact of disassembling and assembling the insertion rod assembly on coaxiality. At the same time, the adapter adopts a radial expansion structure, which tightly abuts against the inner wall of the barrel. Combined with the muzzle tapered end face positioning, this ensures that the laser beam and the barrel axis remain highly coaxial, significantly improving the calibration accuracy of the firearm. Attached Figure Description

[0017] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed herein.

[0019] Figure 1 A schematic diagram of the overall structure of a laser calibration device based on the collaboration of a master and auxiliary calibrator, provided for an embodiment of this application; Figure 2 A schematic diagram of the structure of the main calibrator of a laser calibration device based on the collaboration of main and auxiliary calibrators, provided in an embodiment of this application; Figure 3 A schematic diagram illustrating the pairing of the plug assembly and adapter of a laser calibration device based on a master-slave calibrator system, provided for embodiments of this application; Figure 4 A left-side view of an auxiliary calibrator in a laser calibration device based on master-auxiliary calibrator collaboration, provided in an embodiment of this application; Figure 5 A right-side view of an auxiliary calibrator in a laser calibration device based on master-auxiliary calibrator collaboration, provided in an embodiment of this application; Figure 6 A flowchart of a laser calibration method based on master-slave calibrator collaboration is provided for embodiments of this application; In the diagram: 1. Barrel; 2. Main calibrator; 3. Auxiliary calibrator; 201. Laser module; 2011. Calibration adjustment knob; 202. Conical connecting surface; 204. Threaded connecting surface; 203. Insert rod assembly; 205. Adapter; 301. Guide rail assembly; 3011. Locking nut; 3012. Clip; 302. Battery compartment; 303. Left side switch unit; 401. Laser emitting unit; 402. Illumination emitting unit; 403. Right side switch unit; 404. Windage adjustment unit; 405. Ballistic adjustment unit; 406. Indicator unit; X direction: Barrel axis direction ( ); Y direction: Vertical direction perpendicular to X direction.

[0020] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0025] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 A schematic diagram of the overall structure of a laser calibration device based on the collaboration of a master and auxiliary calibrator, provided for an embodiment of this application; Figure 2 A schematic diagram of the structure of the main calibrator of a laser calibration device based on the collaboration of main and auxiliary calibrators, provided in an embodiment of this application; Figure 3 A schematic diagram illustrating the pairing of the plug assembly and adapter of a laser calibration device based on master-auxiliary calibrator collaboration, provided for embodiments of this application; Figure 4 A left-side view of an auxiliary calibrator in a laser calibration device based on master-auxiliary calibrator collaboration, provided in an embodiment of this application; Figure 5 A right-side view of an auxiliary calibrator in a laser calibration device based on master-auxiliary calibrator collaboration, provided in an embodiment of this application; Figure 6A flowchart of a laser calibration method based on the collaboration of a master and auxiliary calibrator is provided for an embodiment of this application.

[0027] refer to Figure 1 A laser calibration device based on the cooperation of a main and auxiliary calibrators is shown for calibrating firearms of different calibers. The firearms have a barrel 1. The laser calibration device includes a main calibrator 2 and an auxiliary calibrator 3. The main calibrator 2 is inserted into the barrel 1. The auxiliary calibrator is clamped at the lower part of the barrel 1. The main calibrator 2 of the laser calibration device includes: The laser module 201 has a first end and a second end disposed opposite to each other in a first direction. The first end of the laser module 201 is used to emit a first laser beam, and the second end of the laser module 201 has a battery compartment. The first direction is the axis of the laser beam. The insertion rod assembly 203 has a connecting portion and an insertion portion disposed opposite to each other in a first direction; the connecting portion of the insertion rod assembly 203 is connected to the second end of the laser module, the axial direction of the insertion rod assembly 203 coincides with the axial direction of the first laser beam, and the insertion portion of the insertion rod assembly 203 is inserted into the barrel 1; the second direction is the radial direction of the insertion rod assembly 203; an adapter is used for coaxial positioning of the barrels of the firearms of different calibers; the adapter can expand in the second direction to abut against the inner wall of the barrel, so that the insertion rod assembly and the barrel remain coaxial; The adapter 205 is used for positioning the barrels of the firearms of different calibers; the adapter can expand in the second direction to abut against the inner wall of the barrel, so that the insert rod assembly is coaxial with the barrel; the second direction is the radial direction of the insert rod assembly.

[0028] The auxiliary calibrator 3 of the laser calibration device includes: The guide rail assembly 301 is used to fix the lower edge of the barrel 1; An illumination module includes a laser emitting unit and an illumination emitting unit; the laser emitting unit is used to emit a second laser beam; the illumination emitting unit is used to emit an illumination beam; the laser beam and the illumination beam have the same illumination direction; An adjustment component is used to adjust the irradiation direction of the irradiation module via an adjustment knob; The laser beam is coaxial with the extended line of the barrel's bore axis; the insertion part of the insertion rod assembly is provided with an adapter interface; the adapter interface is used to connect to the adapter of the elastically deformable part in the second direction; the elastically deformable part of the adapter can abut against the inner wall of the barrel of different caliber firearms, so that the insertion part of the insertion rod assembly is coaxial with the extended line of the barrel's bore axis; the adapter includes an expandable plastic cap and a locking screw, which pushes the plastic cap outward when the screw is screwed in, tightly fitting the inner wall of the barrel with different inner diameters; the other end is provided with a tapered end face for pressing the muzzle end face to achieve dual positioning.

[0029] This application provides a laser calibration device, including a main calibrator 2 and an auxiliary calibrator 3. The laser module further includes a calibration adjustment knob 2011, which is used to adjust the direction of the first laser beam emitted by the laser module so that the direction of the laser beam is coaxial with the radial direction of the insertion component. The calibration adjustment knob includes a windage adjustment knob and a vertical adjustment knob. The windage adjustment knob is used to adjust the horizontal direction of the target point being aimed at by the sight; the vertical adjustment knob is used to adjust the vertical direction of the target point being aimed at by the sight. During firearm calibration, the insertion rod assembly 203 of the main calibrator 2 can be inserted into the barrel first. By rotating the insertion rod assembly 203 clockwise, the elastic deformation part of the adapter expands to contact the inner wall of the barrel, thereby keeping the axis of the insertion rod assembly 203 aligned with the axis of the barrel's bore center. The calibration adjustment knob 2011 of the main calibrator 2 can be adjusted to ensure that the laser beam's illumination spot is completely aligned with the firearm's front sight and the target point. The adjustment assembly of the auxiliary calibrator 3 can be adjusted to ensure that the illumination spot of the auxiliary calibrator's illumination assembly is completely aligned with the target point. This ensures that the two sets of lasers emitted by the laser calibration device are aligned with the extension line of the barrel's bore center axis and the target point, improving calibration accuracy. After calibration, the main calibrator 2 can be removed, leaving only the auxiliary calibrator 3. The illumination module of the auxiliary calibrator 3 can be used in simulated shooting training and testing scenarios, thereby improving the compatibility and versatility of the laser calibration device.

[0030] It should be noted that, as Figure 1 As shown, the first direction is Figure 1 The X direction, that is, the propagation path of the first laser beam emitted by the laser module 201 of the main calibrator 2, is the first direction. When the insertion rod assembly 203 is inserted into the barrel 1, the axis of the barrel 1, the axis of the insertion rod assembly 203, and the axis of the second laser beam emitted by the laser module 201 coincide. Here, coincidence can also be understood as coaxiality. The second direction is the radial direction of the insertion rod assembly, for example... Figure 1The Y direction is perpendicular to the X direction; the elastic deformation part of the adapter 205 can be expanded (right-hand tightening) or contracted (left-hand loosening) by rotating the plug assembly 203 radially.

[0031] Furthermore, the second end of the laser module 201 is provided with a first tapered guide surface, and the connecting part of the plug assembly 203 is provided with a second guide surface; the first tapered guide surface and the second tapered guide surface fit and abut against each other to achieve axial alignment and coaxial positioning during threaded connection.

[0032] The insertion part of the insertion rod assembly 203 includes a snap-fit ​​part and an insertion part; the snap-fit ​​part is provided with a tapered slope; wherein, when the insertion part of the insertion part is inserted into the gun barrel, the tapered slope of the snap-fit ​​part snaps into the muzzle of the gun barrel.

[0033] The connecting portion of the insert assembly 203 engages with the second end of the laser module 201 via two sides of the threaded connecting surface 204, ensuring a tight fit between the outer and inner surfaces of the tapered connecting surface 202. The insert assembly 203 is screwed into the laser module via a threaded connection; the first and second tapered guide surfaces can be brought into contact by rotation; as the insert assembly rotates in the right-hand tightening direction, it gradually tightens inward, ensuring a tight fit between the first tapered guide surface of the second end of the laser module and the second guide surface of the connecting portion.

[0034] The tapered guide surface is used to release the fit when unscrewing to the left and to achieve high-precision coaxial alignment when tightening to the right, avoiding radial runout caused by threaded connections. The laser module 201 and the insertion rod assembly 203 can be connected via a tapered surface and threaded connection. For example, the connecting part of the insertion rod assembly 203 has a tapered, tapered guide slope, and correspondingly, the second end of the laser module has a concave tapered mating surface. Through the wedging action of the tapered guide surface, the axes of the insertion rod assembly and the laser module are automatically corrected, ensuring coaxiality after connection. When the threaded connection is tightened, interference or tight contact pressure is generated between the tapered guide surfaces, further strengthening the connection and eliminating radial clearance. Therefore, the impact of battery removal and replacement on coaxiality can be effectively avoided. The insertion part of the insertion rod assembly can expand through the adapter to contact the inner wall of the barrel, while the tapered platform engages with the muzzle, providing double protection for the coaxiality of the insertion rod assembly and the barrel, thereby ensuring the coaxiality of the laser beam and the extended axis of the barrel bore, improving the calibration accuracy of the laser beam.

[0035] It should be understood that there are many types and structures of traditional lasers, all of which can be used to emit laser beams of different wavelengths according to preset modes. Therefore, the details of how the laser module 201 achieves laser emission will not be elaborated here.

[0036] The laser module 201 can be powered by a battery. A button battery, such as a 1.5V lithium-ion battery, is inserted into the battery compartment from the second end of the laser module 201. The laser module 201 and the plug assembly 203 are then connected by a threaded connection, and the button battery is fixed in the battery compartment. This makes it easier to replace the battery even when the laser calibration device is being carried around, making it more convenient to use.

[0037] Of course, the battery can be installed inside the laser module 201, just like in the traditional solution. The laser module 201 can have two parts that are screwed together, with the battery installed inside. The two parts can be separated by rotation for battery replacement.

[0038] refer to Figure 2 In an exemplary embodiment, the main calibrator 2 of the laser calibration device may further include: a battery module, which is connected and fixed by mutual threading and is electrically connected to each other; wherein the battery module extends in a first direction.

[0039] It should be understood that the battery module contains batteries arranged along the first direction. This allows the operator to hold the battery module and insert or remove the insertion rod assembly 203 into the barrel 1, making it easier to apply force and operate.

[0040] Of course, the control switches of the laser calibration device, such as buttons, knobs, or switches, can be located on the side of the laser module 201 or on the connection between the laser module 201 and the plug assembly 203.

[0041] In this embodiment, the main calibrator 2 of the laser calibration device can switch between different modes by pressing a control switch, such as adaptation mode, gun calibration mode, and power-off mode. In the power-off state, pressing the switch switches to adaptation mode. In adaptation mode, the laser emitted by the laser calibration device adopts a flash laser that is visible to the human eye, so that the operator can quickly locate the laser spot. At the same time, it can effectively reduce power consumption and extend the usage time. Pressing the switch again switches to gun calibration mode. In gun calibration mode, the laser emitted by the laser calibration device will form a fixed laser spot. Pressing the switch again switches to power-off mode, and the laser calibration device enters the power-off state.

[0042] Reference Figure 3In an exemplary embodiment, the main calibrator 2 of the laser calibration device can be equipped with multiple adapters 205, the caliber of which ranges from 0.22 feet to 0.50 feet. Larger caliber adapters, such as 0.51 to 0.75 feet, for shotguns can also be equipped via different plug assemblies 203. Each adapter includes an elastic deformable portion and a fixing screw. The fixing screw allows the adapter to be installed onto the adapter connector on the plug portion of the plug assembly 203. Rotating the plug assembly 203 allows the elastic deformable portion of the adapter to expand and contract in a second direction. The fixing screw can be screwed into the adapter to achieve different degrees of radial expansion of the elastic deformable portion. Combined with the adapter connector of the plug assembly 203, it can adapt to different barrel firearms in the 0.220 to 0.750 caliber range, including conventional firearms and shotguns, eliminating the need for separate calibration devices for different calibers and offering high versatility.

[0043] One end of the insertion part of the insert rod assembly 203 is inserted into the barrel, and the other end of the insertion part is engaged with the muzzle of the firearm. The second direction is the radial direction of the insert rod assembly. The adapter can be used to expand in the second direction to make the insertion part of the insert rod assembly coaxial with the barrel section of the firearm for firearms of different calibers. The adapter includes an elastic deformation part and a fixing screw. The elastic deformation part of the adapter can be connected to the insertion part of the insert rod assembly by the fixing screw. As the fixing screw is screwed in, the elastic deformation part of the adapter expands to contact the inner wall of the barrel section.

[0044] Furthermore, the auxiliary calibrator 3 also includes a connecting wire assembly, which connects to the illumination module via wires to synchronize the emission of the illumination beam from the auxiliary calibrator's illumination module with the firing of the firearm's bolt. This can be applied during testing or simulated shooting, expanding the applicability of the laser calibration device while ensuring calibration accuracy; the connecting wire assembly enables synchronization of the illumination beam with the firing of the bolt, improving the convenience of subsequent shooting assistance.

[0045] refer to Figure 4 and Figure 5In an exemplary embodiment, the auxiliary calibrator 3 can be mounted on the lower edge of the barrel of a firearm via a guide rail assembly 301. The guide rail assembly 301 includes a locking nut 3011 and a latching member 3012. The locking nut 3011 is used to latch and lock the auxiliary calibrator 3 onto the lower edge of the barrel of the firearm or onto a sleeper. The latching member 3012 is used to fix the guide rail assembly 301 onto the auxiliary calibrator 3. The auxiliary calibrator 3 also includes a battery compartment 302, which is used to install a battery pack that provides power to the illumination module. The illumination assembly also includes a left-side switch unit 303 and a right-side switch unit 403, both of which include a laser switch and an illumination switch. The laser switch is used to switch the mode of the laser source of the laser emitting unit 401 to emit laser beams of different wavelengths. The illumination switch is used to switch the frequency of the illumination beam of the illumination emitting unit 402 to emit illumination beams of different intermittent durations, such as strobe beams. The laser switch and illumination switch can be buttons, knobs, or pushbuttons. They can be integrated into one switch or separate switches, and can be located on the two side housings of the auxiliary calibrator 3, such as 303 and 403. The irradiation assembly includes a laser emitting unit 401 and an illumination emitting unit 402. The laser emitting unit 401 is used to emit a second laser beam; the illumination emitting unit 402 is used to emit an illumination beam. The illumination spots of the second laser beam and the illumination beam are focused in the same direction. The irradiation module of the auxiliary calibrator 3 achieves consistent focusing of the laser beam and the illumination beam, and the laser wavelength and illumination beam frequency can be switched via the laser switch and illumination switch to meet the needs of different application scenarios.

[0046] The adjustment assembly is used to adjust the direction of the illumination beam emitted by the illumination module via an adjustment knob. The adjustment assembly includes a windage adjustment unit 404 and a ballistic adjustment unit 405. The windage adjustment unit 404 is located on the side of the auxiliary calibrator, and the ballistic adjustment unit 405 is located at the bottom of the auxiliary calibrator. The windage adjustment unit 404 is used to adjust the illumination module horizontally so that the second laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the extension line of the barrel centerline of the firearm horizontally. The ballistic adjustment unit 405 is used to adjust the illumination module vertically so that the second laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the extension line of the barrel centerline of the firearm vertically. The illumination module of the auxiliary calibrator achieves consistent spot focusing of the laser beam and the illumination beam, and can switch the laser wavelength and illumination beam frequency via laser and illumination switches to meet the needs of different usage scenarios. The connecting wire assembly can synchronize the illumination beam with the bolt release, improving the convenience of subsequent shooting assistance.

[0047] In an exemplary embodiment, the laser emitting unit 401 and the illumination emitting unit 402 of the irradiation module can be adjusted to have the same beam focus. The laser emitting unit 401 can switch between different wavelengths of laser light, such as 650nm and 520nm, via a laser switch. The illumination emitting unit 402 can switch between different frequencies of illumination beams, such as constant light and intermittent flashing, via an illumination switch. The irradiation module can be connected to the adjustment assembly. The adjustment knob of the ballistic adjustment unit 405 corresponds to vertical adjustment, and the adjustment knob of the wind deflection adjustment unit 404 corresponds to horizontal adjustment. The indicator unit 406 is used to indicate the power status of the auxiliary calibrator, such as an indicator light: when the power supply is normal and the power is sufficient, the indicator light is constantly lit; when the power is insufficient, the indicator light flashes to remind the user to replace the battery or charge it in time; when the power is disconnected, the indicator light is off.

[0048] If it is necessary to synchronize the illumination beam with the trigger bolt, connect one end of the connecting wire assembly to the illumination module and the other end to the trigger mechanism of the firearm. The assembled auxiliary calibrator 3 is connected to the lower edge of the barrel 1 via the guide rail assembly 301 to complete the mounting of the auxiliary calibrator 3. The guide rail assembly 301 is compatible with Picatinny / dovetail rails to ensure the stability of the mounted firearm. refer to Figure 6 Based on the above embodiments, this application also provides a laser calibration method based on the cooperation of master and auxiliary calibrators, applied to the above-mentioned laser calibration device. The laser calibration method may include the following steps: S100. Insert the main calibrator of the laser calibration device into the barrel of the firearm, and expand the adapter by rotating the plug assembly of the main calibrator to fit tightly against the inner wall of the barrel of the firearm.

[0049] S200. The auxiliary calibrator of the laser calibration device is mounted on the lower edge of the barrel of the firearm via a guide rail assembly, and the auxiliary calibrator is fixed to the firearm by operating the locking screw of the guide rail assembly.

[0050] S300. Observe the deviation between the spot of the first laser beam of the main calibrator and the target point corresponding to the sight of the firearm, and adjust the calibration adjustment knob until the spot of the first laser beam completely coincides with the target point corresponding to the sight of the firearm.

[0051] S400: When the spot of the first laser beam of the main calibrator completely coincides with the target point corresponding to the sight of the firearm, observe the deviation between the spot of the second laser beam of the auxiliary calibrator and the target point, and adjust the adjustment component of the auxiliary calibrator until the spot of the second laser beam completely coincides with the target point.

[0052] S500: Disassemble the main calibrator of the laser calibration device and keep the auxiliary calibrator attached to the lower edge of the barrel of the firearm for simulated shooting.

[0053] It should be noted that the firearm can be fixed in place to ensure its position remains constant and prevents changes in its position during sight adjustments, which could affect subsequent calibration. The distance between the firearm and the target can be adjusted according to the actual situation. For example, if firearm calibration needs to be performed at a distance of 100 meters from the target, the distance between the firearm and the target can be 100 meters. The specific distance can be adjusted according to the actual situation, such as 50 meters, 100 meters, or 200 meters.

[0054] In an exemplary embodiment, during the process of inserting the main calibrator 2 of the laser calibration device into the barrel 1, an adapter of the corresponding specification can be selected first according to the caliber of the gun barrel. At this time, the elastic deformation part is in a contracted state, which facilitates the insertion end of the insertion rod assembly to pass into the barrel. For conventional firearms with a .220–.50 ft caliber, the elastic deformation part can be radially expanded by tightening the insert assembly counterclockwise (clockwise) to engage the fixing screw, thus ensuring a tight fit against the inner wall of the barrel. For shotguns with a .510–.750 ft caliber, when replacing the fitting elastic deformation part, the insert assembly can be unscrewed counterclockwise to loosen the fixing screw, causing the elastic deformation part to radially contract and allowing the original adapter to be removed. The corresponding size adapter can then be reinstalled onto the tip of the insert end. The adapter corresponding to the barrel caliber can be installed into the fitting interface of the insert assembly. The elastic deformation part can be initially fixed by engaging the fixing screw. Finally, by rotating the insert assembly of the main calibrator clockwise, the elastic deformation part of the adapter can be expanded to fit tightly against the inner wall of the firearm's barrel. The conical platform of the insertion part of the insertion rod assembly is snapped into the muzzle to fix the main calibrator to the barrel, ensuring that the insertion rod assembly and the barrel are coaxial, thereby making the first laser beam emitted by the laser module coaxial with the extended line of the barrel's bore axis.

[0055] With the firearm fixed, observe the first laser beam emitted by the main calibrator of the laser calibration device to form a calibration path, directly hitting the target point along the X-direction, serving as a reference for the barrel axis. Observe whether the light spot formed on the target paper moves. If it doesn't move, it indicates that the laser axis coincides with the barrel axis, facilitating subsequent calibration. If it moves, observe whether the range of movement is within a threshold range. If it is, it indicates a high degree of coaxiality between the laser axis and the barrel axis, allowing for calibration. If it's outside the threshold range, it indicates a low degree of coaxiality, requiring fine-tuning of the laser emission direction by adjusting the calibration adjustment knob on the laser module. The calibration adjustment knob can be adjusted by observing the deviation between the light spot of the first laser beam emitted by the main calibrator and the firearm's sight, until the light spot of the first laser beam completely coincides with the firearm's sight at the target point.

[0056] The auxiliary calibrator of the laser calibration device can be mounted on the lower edge of the gun barrel via a guide rail assembly, for example, by hanging it from the lower edge of the barrel or sleeper; and the auxiliary calibrator is fixed to the gun by tightening the locking screws of the guide rail assembly. The illumination direction of the illumination component of the auxiliary calibrator can be adjusted by operating the adjustment component of the auxiliary calibrator. At this time, the auxiliary laser path emitted by the auxiliary calibrator is in its initial state, which deviates from the calibration path of the main calibrator and needs to be corrected by the adjustment component. For example, the ballistic adjustment unit is used to adjust the vertical direction of the illumination module so that the second laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the vertical extension of the muzzle axis of the gun; the windage adjustment unit is used to adjust the horizontal direction of the illumination module so that the second laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the horizontal extension of the muzzle axis of the gun. When the spot of the laser beam from the main calibrator is completely aligned with the sight of the firearm, the adjustment component of the auxiliary calibrator is adjusted so that the spot of the first laser beam emitted by the irradiation module is completely aligned with the target point.

[0057] In steps S300 and S400, the firing direction of the first laser beam can be finely adjusted by adjusting the aiming adjustment knob of the firearm: if the spot of the first laser beam is horizontally biased to the right, rotate the windage adjustment knob clockwise to correct the spot of the first laser beam to the left; if the spot of the first laser beam is horizontally biased to the left, rotate the windage adjustment knob counterclockwise to correct the spot of the first laser beam to the right; if the spot of the first laser beam is vertically biased to the up, rotate the vertical adjustment knob clockwise to correct the spot of the first laser beam to the down; if the spot of the first laser beam is vertically biased to the down, rotate the vertical adjustment knob upward to correct the spot of the first laser beam upward, so that the spot of the first laser beam completely coincides with the target point. At this point, the bore axis of the firearm barrel intersects with the aiming line of the sight at a distance of 100m from the target, such as the target point. The calibration adjustment knob can be repeatedly fine-tuned until the laser spot of the main calibrator and the front sight of the firearm sight are completely aligned with the target point. At this point, the aiming reference of the firearm sight is completely matched with the axis of the barrel, thus completing the basic calibration of the firearm sight.

[0058] While maintaining the laser spot of the main calibrator stably aligned with the target, the laser emission unit of the auxiliary calibrator can be activated. At this point, the auxiliary laser path of the auxiliary calibrator initially deviates from the calibration path of the main calibrator. The emission direction of the auxiliary laser is adjusted using the adjustment components (ballistic adjustment unit and windage adjustment unit) of the auxiliary calibrator: adjusting the ballistic adjustment unit (vertical adjustment knob) corrects the deviation of the auxiliary laser in the Y direction, ensuring the second laser beam spot coincides with the target in the vertical direction; adjusting the windage adjustment unit (horizontal adjustment knob) corrects the deviation of the second laser beam in the X direction, ensuring the second laser spot coincides with the target in the horizontal direction. The calibration path is the first laser path emitted by the main calibrator (barrel axis reference); the auxiliary laser path is the second laser path emitted by the auxiliary calibrator (the path to be calibrated); and the target is the calibration reference point. After calibration, rotate the main calibrator's insertion rod assembly counterclockwise to retract the adapter's elastic deformation part, pulling the insertion rod assembly out of the barrel. This completes the disassembly of the main calibrator. The auxiliary calibrator remains mounted on the lower part of the barrel and can be directly used for subsequent live-fire training. The laser emission unit assists in aiming, and the illumination emission unit provides illumination or dazzle effects. Furthermore, the second laser beam can be synchronously emitted when the trigger is pulled via the connecting wire assembly. The auxiliary calibrator can remain mounted on the lower part of the barrel long-term. Its second laser beam and illumination beam are precisely matched to the barrel axis, eliminating the need for repeated calibration. It can be directly used for subsequent live-fire training: the laser emission unit provides aiming assistance, the illumination emission unit provides nighttime illumination or tactical dazzle effects, and the connecting wire assembly enables synchronous emission of the laser / illumination beams when the trigger is pulled, improving shooting convenience and accuracy.

[0059] After the firearm calibration is completed, the main calibrator can be removed, leaving only the auxiliary calibrator. The illumination module of the auxiliary calibrator is used for simulated shooting training and in real combat scenarios, improving the compatibility and versatility of the laser calibration device.

[0060] In the embodiments of this application, the main calibrator ensures the coaxiality of the laser beam and the barrel bore axis through dual positioning via adapter expansion and conical platform engagement, providing a precise reference for calibration. The auxiliary calibrator completes direction matching under the reference of the main calibrator and can be mounted for a long time after calibration without repeated calibration, significantly reducing ammunition consumption and time costs for live-fire calibration. The calibration process is simple to operate, the deviation adjustment logic is clear, and it is compatible with barrels of different calibers and lengths, making it highly versatile and suitable for the calibration needs of various firearms such as pistols, short-barreled shotguns, and short-barreled rifles.

[0061] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A laser calibration device based on master-slave calibrator collaboration, characterized in that, The laser calibration device is used to calibrate firearms of different calibers. It includes a main calibrator and an auxiliary calibrator. The main calibrator is inserted into the barrel of the firearm, and the auxiliary calibrator is clamped to the lower edge of the barrel. The main calibrator of the laser calibration device includes: A laser module has a first end and a second end disposed opposite to each other in a first direction. The first end of the laser module is used to emit a first laser beam, and the second end of the laser module has a battery cavity for installing a battery that provides power to the laser module. The first direction is the axis of the first laser beam. The insertion rod assembly has a connecting part and an insertion part arranged opposite to each other in a first direction; the connecting part of the insertion rod assembly is connected to the second end of the laser module, the axial direction of the insertion rod assembly coincides with the axial direction of the first laser beam, one end of the insertion part of the insertion rod assembly is inserted into the barrel, and the other end of the insertion part is snapped into the muzzle of the firearm. An adapter, installed at one end of the plug-in portion, is used for coaxial positioning of the barrels of firearms of different calibers; the adapter can expand along a second direction to abut against the inner wall of the barrel, so that the plug-in assembly is coaxial with the barrel; the second direction is the radial direction of the plug-in assembly; The auxiliary calibrator of the laser calibration device includes: A guide rail assembly for securing the auxiliary calibrator to the lower edge of the barrel; The illumination module includes a laser emitting unit and an illumination emitting unit; the laser emitting unit is used to emit a second laser beam; the illumination emitting unit is used to emit an illumination beam; the illumination spots of the laser beam and the illumination beam are focused in the same direction; An adjustment component is used to adjust the irradiation direction of the irradiation beam emitted by the irradiation module; The first laser beam is coaxial with the extended line of the bore axis of the gun barrel; one end of the plug-in part of the plug-in assembly is provided with an adapter interface; the adapter interface is used to connect an adapter that matches the barrel of the firearm of different calibers.

2. The laser calibration device as described in claim 1, characterized in that, The second end of the laser module is provided with a first conical guide surface, and the connecting part of the plug assembly is provided with a second conical guide surface; the first conical guide surface and the second conical guide surface fit and abut against each other; The second end of the laser module is connected to the connection part of the plug-in component by a thread, so that the first tapered guide surface and the second tapered guide surface fit tightly together.

3. The laser calibration device as described in claim 1, characterized in that, The insertion part of the plug assembly includes a snap-fit ​​part and an insertion part; the snap-fit ​​part is provided with a tapered slope. When the insertion part of the plug is inserted into the gun barrel, the conical slope of the locking part locks into the muzzle of the gun barrel.

4. The laser calibration device as described in claim 1, characterized in that, The adapter includes an elastically deformable part and a fixing screw; The elastically deformable part of the adapter is connected to the plug-in part of the plug assembly by the fixing screw; As the fixing screw is screwed in, the elastic deformation part of the adapter expands to abut against the inner wall of the gun barrel.

5. The laser calibration device as described in claim 1, characterized in that, The auxiliary calibrator also includes: A connecting wire assembly is provided, which is connected to the illumination module via a wire, to synchronize the emission of the illumination beam from the illumination module of the auxiliary calibrator with the firing of the firearm.

6. The laser calibration device as described in claim 1, characterized in that, The irradiation assembly further includes a switching unit, which comprises a laser switch and an illumination switch: The laser switch is used to switch the mode of the laser source of the laser unit to emit laser beams of different wavelengths. The lighting switch is used to switch the frequency of the lighting beam of the lighting unit to emit lighting beams with different intermittent durations.

7. The laser calibration device as described in claim 1, characterized in that, The adjustment components include a wind deflection adjustment unit and a ballistic adjustment unit: The wind deflection adjustment unit is used to adjust the illumination module in the horizontal direction so that the second laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the extension line of the bore center axis of the firearm in the horizontal direction. The ballistic adjustment unit is used to vertically adjust the illumination module so that the second laser beam emitted by the laser emitting unit and the illumination beam emitted by the illumination emitting unit coincide with the extension line of the bore center axis of the firearm in the vertical direction.

8. The laser calibration device as described in claim 1, characterized in that, The laser module also includes a calibration adjustment knob, which is used to adjust the direction of the first laser beam emitted by the laser module.

9. A laser calibration method based on master-slave calibrator collaboration, characterized in that, Applied to the laser calibration apparatus according to any one of claims 1 to 8; The laser calibration method includes: The main calibrator is inserted into the muzzle of the firearm, and the adapter is expanded by rotating the plug assembly of the main calibrator to fit tightly against the inner wall of the barrel of the firearm. The auxiliary calibrator is mounted on the lower edge of the barrel of the firearm via a guide rail assembly, and the illumination direction of the illumination component of the auxiliary calibrator is adjusted by operating the adjustment component of the auxiliary calibrator. Observe the deviation between the spot of the first laser beam of the main calibrator and the target point corresponding to the sight of the firearm, and adjust the calibration adjustment knob until the spot of the first laser beam completely coincides with the target point; When the spot of the first laser beam of the main calibrator completely coincides with the target point corresponding to the sight of the firearm, observe the deviation between the spot of the second laser beam of the auxiliary calibrator and the target point, and adjust the adjustment component of the auxiliary calibrator until the spot of the second laser beam completely coincides with the target point.

10. The laser calibration method as described in claim 9, characterized in that, After mounting the auxiliary calibrator to the lower edge of the barrel of the firearm via the rail assembly, the method further includes: Observe the spot of the first laser beam of the main calibrator, the spot of the second laser beam of the auxiliary calibrator, and the deviation of the target point corresponding to the sight of the firearm; Simultaneously adjust the calibration adjustment knob and the adjustment components of the auxiliary calibrator until the spot of the first laser beam and the spot of the second laser beam completely coincide with the target point; Remove the main calibrator and keep the auxiliary calibrator attached to the lower edge of the barrel of the firearm for simulated firing.

11. The laser calibration method as described in claim 9, characterized in that, The calibration adjustment knob includes a windage adjustment knob and a vertical adjustment knob; the process of observing the deviation between the spot of the first laser beam of the main calibrator and the target point corresponding to the sight of the firearm, and adjusting the calibration adjustment knob, includes: Observe the deviation of the spot of the first laser beam from the target point corresponding to the sight of the firearm in the vertical and horizontal directions; If the spot of the first laser beam is deflected to the right in the horizontal direction, turn the wind deflection adjustment knob clockwise. If the spot of the first laser beam is deflected to the left in the horizontal direction, turn the wind deflection adjustment knob counterclockwise. If the spot of the first laser beam is biased upward in the vertical direction, turn the vertical adjustment knob clockwise. If the spot of the first laser beam is lower in the vertical direction, turn the vertical adjustment knob counterclockwise.

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