A targeting device and method

Abstract

The application discloses a kind of target calibration device and method, target calibration device includes target calibration platform subassembly and target calibration plate, target calibration platform subassembly includes target calibration platform, left positioning shaft and right positioning shaft;Right positioning shaft is equipped with right mechanical target calibration hole, the right surface of target calibration plate is equipped with target calibration hole reference target calibration cross line and table level sight reference target calibration cross line.Product to be calibrated is clamped between left positioning shaft and right positioning shaft and thus firmly and stably fixed, without target calibration personnel hand-held shoulder, make target calibration result stable and reliable, good consistency, target calibration operation does not need higher professional skill and proficiency.Through using the application, the quality of target calibration is improved, the target calibration conclusion of operator and target calibration personnel is unified, and the conclusion difference phenomenon of operator target calibration operation once and target calibration personnel re-inspection operation once is reduced.

Description

Technical Field

[0001] This invention relates to the field of weapon aiming calibration technology, and in particular to a calibration device and method. Background Technology

[0002] Currently, the methods for calibrating individual weapons or similar civilian products, both domestically and internationally, are very simple. Calibration is often carried out by personnel holding the weapon by hand or on their shoulder. This method is crude and has the following drawbacks:

[0003] 1. The calibration accuracy is not high and the efficiency is low. After the operator performs the calibration once, the inspector has to perform another calibration status confirmation operation.

[0004] 2. The target calibration method is very outdated and cannot keep up with the needs of the times;

[0005] 3. The high degree of human error leads to inconsistencies in the calibration conclusions between operators and inspectors;

[0006] 4. Different batches of operators, or even the same operator viewing the scope multiple times (due to variations in eye position within the scope's observation port), will produce inconsistent calibration results. This leads to variations in the calibration status of each batch of products, resulting in discrepancies in calibration conclusions. Therefore, traditional calibration methods cannot guarantee that different people, or even the same person, will maintain the same position within the scope's observation port each time, thus failing to ensure consistent calibration conclusions and resulting in low calibration quality.

[0007] 5. It has many drawbacks, such as requiring high levels of professional skills and proficiency from the target calibration personnel;

[0008] 6. High requirements are placed on the professional skills and eyesight of the target calibration personnel;

[0009] 7. Low calibration efficiency. In traditional calibration, after the operator performs the calibration once, the inspector must perform a second calibration status confirmation operation, resulting in low calibration efficiency due to the two operations.

[0010] 8. Highly limited by ambient light levels. Traditional target calibration typically requires a distance of 25 meters to clearly see the calibration board's markings, thus demanding high light quality.

[0011] 9. Inspectors can only see the calibration results, not the calibration process, and therefore cannot make a judgment on the calibration process;

[0012] 10. Traditional positioning methods cannot guarantee that the product being calibrated will not rotate along its circumference during the calibration process;

[0013] 11. Traditional target calibration cannot guarantee that different people, or even the same person, will be in the same position at the scope's observation port each time. Therefore, it cannot guarantee the consistency of the calibration results, and the quality of the calibration is not high. Summary of the Invention

[0014] The technical problem to be solved by the present invention is to improve a calibration device and method to address the problem that the calibration conclusions of individual weapons are greatly affected by human factors and require high professional skills and proficiency from the calibration personnel.

[0015] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0016] A target calibration device includes a target calibration platform assembly and a target calibration plate disposed on the left side of the target calibration platform assembly. The target calibration platform assembly includes a target calibration surface, a left positioning shaft fixedly disposed on the left end of the target calibration surface, and a right positioning shaft disposed on the right end of the target calibration surface. The left and right positioning shafts are coaxial. A left mechanical target calibration hole is provided through the center of the left positioning shaft. A crosshair is installed on the left end face of the left positioning shaft, and the center point of the crosshair coincides with the center line of the left mechanical target calibration hole. A right mechanical target calibration hole is provided through the center of the right positioning shaft. The target calibration plate has a target hole reference crosshair and a scale front sight reference crosshair on its right side. The scale front sight reference crosshair is located below the target hole reference crosshair. The center point of the target hole reference crosshair, the center point of the crosshair, and the axis of the right mechanical target hole are on the same straight line, which is perpendicular to the right side of the target calibration plate. The product to be calibrated is stuck between the left and right positioning axes, and the center point of the scale front sight reference crosshair, the scale of the product to be calibrated, and the front sight of the product to be calibrated are on the same straight line.

[0017] Furthermore, a support plate is vertically fixed to the left end of the calibration table, and the left positioning shaft is fixedly connected to the support plate through it. The product to be calibrated is fitted onto the left positioning shaft, and an anti-rotation positioning block is fixedly provided on the left positioning shaft to cooperate with the notch on the left end of the product to be calibrated.

[0018] Furthermore, a support plate is vertically fixed to the right end of the calibration table, and the right positioning shaft is slidably connected to the support plate. A tapered right positioning seat is elastically connected to the side of the support plate near the left positioning shaft. The right positioning seat is fixedly connected to the right positioning shaft, and a helical spring is sleeved on the right positioning shaft. The helical spring is disposed between the right positioning seat and the support plate. The right positioning seat is supported inside the product being calibrated. The right positioning seat is provided with a through hole, and the axis of the through hole, the axis of the right mechanical calibration hole, and the center point of the cross calibration line are located on the same straight line.

[0019] Furthermore, on the right side of the calibration plate, next to the calibration hole reference crosshair, a sight reference crosshair is provided. The sight reference crosshair and the sight of the product being calibrated are located on the same side of the calibration hole reference crosshair, and the sight reference crosshair coincides with the calibration crosshair inside the sight of the product being calibrated.

[0020] Furthermore, the target calibration platform is equipped with a target calibration positioning and image projection device, which includes an image acquisition instrument and a display screen connected to the image acquisition instrument. The image acquisition instrument corresponds to the observation port of the aiming scope.

[0021] Furthermore, two support components are arranged along the axial direction of the sight on the target calibration platform. The two support components are connected to the target calibration platform by positioning screws III. A rotating shaft support plate component is provided between the two support components. The lower end of the rotating shaft support plate component is rotatably connected to the target calibration platform, and the upper end of the rotating shaft support plate component is connected to the image acquisition instrument. When the rotating shaft support plate component rotates to the support component close to the sight, the image acquisition instrument is close to the observation port of the sight. When the rotating shaft support plate component rotates to the support component away from the sight, the image acquisition instrument is away from the observation port of the sight.

[0022] Furthermore, an image acquisition bracket component is slidably connected to the upper end of the rotating shaft support plate component, and a positioning screw II for locking the position of the image acquisition bracket component is screwed onto the rotating shaft support plate component.

[0023] A target calibration method includes the following steps:

[0024] S1, Perform target hole calibration of the target product: Install the target product on the target calibration table assembly, view from the right mechanical target calibration hole to the left, and adjust the height of the target calibration plate so that the center of the target calibration reference crosshair on the target calibration plate, the center point of the crosshair, and the right mechanical target calibration hole are on the same straight line.

[0025] S2, Perform mechanical sight calibration: Based on the set distance between the calibration table assembly and the calibration plate, adjust the sights on the product being calibrated accordingly, so that the center of the crosshairs of the sights and the front sight, the front sight and the sight are on the same straight line.

[0026] The positive effects of this invention are:

[0027] 1. This invention includes a calibration table assembly and a calibration plate. The calibration table assembly includes a calibration table surface, a left positioning axis, and a right positioning axis. The right positioning axis has a right mechanical calibration hole, and the right side of the calibration plate has a calibration hole reference crosshair and a sight reference crosshair. The product to be calibrated is held securely and stably between the left and right positioning axes, eliminating the need for calibration personnel to hold or carry it by hand. This ensures stable, reliable, and consistent calibration results, and the calibration operation does not require high levels of professional skills or proficiency.

[0028] 2. The target calibration table is equipped with a target calibration positioning and image projection device, which includes an image-capturing instrument and a display screen connected to the image-capturing instrument. The image-capturing instrument corresponds to the observation port of the sight. This invention upgrades the target calibration method from the primitive and outdated manual shoulder-carrying and hand-held method to a modern and advanced level. It combines mechanical target calibration with electronic instruments, utilizing an electronic image capture and automatic projection method. The target calibrator and the inspection personnel only need to look at the display screen in front of them to simultaneously view the same entire target calibration process and results. By using this invention, the quality of target calibration is improved, and the target calibration conclusions of the operator and the target calibrator are unified. At the same time, it reduces the discrepancy between the conclusions of the operator's target calibration operation and the target calibrator's re-inspection operation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 yes Figure 1 View from direction A;

[0031] Figure 3 yes Figure 1 A magnified view of a section of the central I area;

[0032] Figure 4 yes Figure 3 View B in the middle;

[0033] Figure 5 yes Figure 1 Enlarged view of part II in the image;

[0034] Figure 6 This is a schematic diagram of the calibration plate;

[0035] Figure 7 yes Figure 1 Enlarged view of a section of central III;

[0036] 1. Left positioning component; 2. Targeted product; 3. Front sight; 4. Rear sight; 5. Sight; 6. Image acquisition instrument; 7. Display screen; 8. Right positioning component; 9. Right mechanical target calibration hole; 10. Target calibration table; 11. Positioning screw I; 12. Positioning bearing component; 13. Positioning screw II; 14. Rotary shaft support plate component; 15. Image acquisition bracket component; 16. Positioning screw III; 17. Support component; 18. Left mechanical target calibration hole; 19. Crosshair for target calibration; 20. Target calibration table; 21. Target calibration plate; 22. Target calibration positioning image acquisition and projection device; 23. Right positioning seat; 24. Helical spring; 25. Right positioning shaft; 26. Left positioning shaft; 27. Anti-rotation positioning block; 28. Rear sight reference crosshair for target calibration; 29. ​​Target calibration hole reference crosshair for target calibration; 30. Sight reference crosshair for target calibration. Detailed Implementation

[0037] Example 1

[0038] like Figures 1 to 7 As shown, a target calibration device includes a target calibration platform assembly 20 and a target calibration plate 21 disposed on the left side of the target calibration platform assembly 20. The target calibration plate 21 can be height adjusted by a telescopic rod at its lower part. The target calibration platform assembly 20 includes a target calibration surface 10, a left positioning shaft 26 fixedly disposed on the left end of the target calibration surface 10, and a right positioning shaft 25 fixedly disposed on the right end of the target calibration surface 10. A support leg is also provided under the target calibration surface 10. The axes of the left positioning shaft 26 and the right positioning shaft 25 are both horizontal. A cross-shaped target calibration line 19 is installed on the left end face of the left positioning shaft 26. The center point of the cross-shaped target calibration line 19 coincides with the center line of the left mechanical target calibration hole 18 in the center of the left positioning shaft 26. The cross-shaped target calibration line 19 is composed of a circular outer ring that is locked at the left end of the left positioning shaft 26 and a cross-shaped nylon line disposed in the inner ring. The center point of the left positioning axis 26, the crosshair 19, and the right positioning axis 25 are coaxial. A left mechanical target calibration hole 18 is passed through the center of the left positioning axis 26, and a right mechanical target calibration hole 9 is passed through the center of the right positioning axis 25. The right side of the target calibration plate 21 is printed with a target calibration hole reference crosshair 29 and a sight reference crosshair 28. The sight reference crosshair 28 is located below the target calibration hole reference crosshair 29. The center point of the target calibration hole reference crosshair 29, the center point of the crosshair 19, and the axis of the right mechanical target calibration hole 9 are on the same straight line, perpendicular to the right side of the target calibration plate 21. The target product 2 is a rocket launcher, positioned between the left positioning axis 26 and the right positioning axis 25. The center point of the sight reference crosshair 28, the notch on the sight scale 4 of the target product 2, and the sight 3 of the target product 2 are on the same straight line. The target calibration plate 30 is equipped with a backlight tube, making it easier to observe the target calibration hole reference crosshair 29 and the sight line reference crosshair 28.

[0039] A vertical rectangular support plate is fixedly connected to the left end of the calibration table 10. The left positioning shaft 26 is fixedly connected to the support plate. The left end of the calibration product 2 is fitted onto the left positioning shaft 26. An anti-rotation positioning block 27 is fixedly provided at the right end of the left positioning shaft 26. The anti-rotation positioning block 27 is engaged in the notch at the left end of the calibration product 2 to prevent the calibration product 2 from rotating.

[0040] A vertical rectangular support plate is also vertically fixed to the right end of the calibration platform 10. The right positioning shaft 25 is slidably connected to the support plate. The left side of the support plate is provided with a right positioning seat 23 with a tapered left part, and the left part of the right positioning seat 23 is inserted into the tapered surface of the right end of the product 2 being calibrated. A helical spring 24 is sleeved on the right positioning shaft 25, and the helical spring 24 is disposed between the right positioning seat 23 and the support plate. The right positioning seat 23 has a through hole along its axis, and the axis of the through hole, the axis of the right mechanical calibration hole 9, and the cross calibration line 19 are located on the same straight line.

[0041] On the right side of the calibration plate 21, next to the calibration hole reference crosshair 29, is a sight reference crosshair 30. The sight reference crosshair 30 and the sight 5 of the product being calibrated are located on the same side as the calibration hole reference crosshair 29. Viewed from right to left, the sight reference crosshair 30 and the sight 5 of the product being calibrated are both located to the left of the axis of the product being calibrated, and the sight reference crosshair 30 coincides with the calibration crosshair inside the sight 5 of the product being calibrated.

[0042] In this embodiment, the target calibration method using the above-mentioned target calibration device includes the following steps:

[0043] S1, Perform target calibration of the calibration holes of the target product 2:

[0044] Pick up the product to be tested 2 and fit its right-end inner conical hole onto the rear positioning seat 23. Apply a force to the right, and the product to be tested 2 will push the rear positioning seat 23, and the rear positioning shaft 25 together will compress the coil spring 24 and move horizontally to the right until the left-end inner hole of the product to be tested 2 fits into the large-diameter positioning part of the right end of the front positioning shaft 26. Align the notch on the left end of the product to be tested 2 with the anti-rotation positioning block 27, and then release the product to be tested 2. Under the action of the coil spring 24, the product to be tested 2 will drive the rear positioning seat 23 and the rear positioning shaft 25 to move horizontally to the left until the front positioning shaft 26, the anti-rotation positioning block 27 and the rear positioning seat 23 together clamp and securely connect the front and rear positioning parts of the product to be tested 2, preventing the product to be tested 2 from rotating.

[0045] At this point, looking forward from the rear mechanical calibration hole 9, adjust the height of the calibration plate 21, and confirm through the right mechanical calibration hole 9 that the center point of the crosshair 19 is completely aligned with the reference calibration crosshair 29 on the calibration plate 21. (Generally, after the first debugging and fixing of the position, after all the calibration products 2 are installed, the center point of the crosshair 19 and the reference calibration crosshair 29 on the calibration plate 21 will definitely be aligned by observing through the right calibration hole 9; it only needs to be verified each time.)

[0046] S2, Perform mechanical sight calibration (using sight 4 and front sight 3):

[0047] Based on the distance between the calibration table assembly 20 and the calibration plate 21, adjust the scale 4 and the front sight 3 on the product being calibrated 2 to ensure that the scale 4, the front sight 3 and the crosshairs 28 of the calibration table 21 are aligned (three-point alignment mode for mechanical calibration).

[0048] Because the target product 2 is clamped by the front positioning shaft 26 and the rear positioning seat 23, it is firmly and stably fixed, eliminating the need for the target calibration personnel to hold it by hand or shoulder, thus ensuring stable and reliable calibration results without requiring high levels of professional skills or proficiency.

[0049] Example 2

[0050] The difference between this embodiment and Embodiment 1 is that:

[0051] The target calibration platform 10 is equipped with a target calibration positioning and image projection device 22, which includes an image capturing instrument 6 and a display screen 7 connected to the image capturing instrument 6. The image capturing instrument 6 can be a camera or a video camera, and the image capturing instrument 6 corresponds to the observation port on the right end of the sight 5.

[0052] Two support components 17 are arranged along the axis of the sight 5 on the target calibration platform 10, and the two support components 17 are arranged opposite each other. The top of the support component 17 is a groove plate. The two support components 17 are respectively connected to the target calibration platform 10 by positioning screws III 16. A plate-shaped rotating shaft support component 14 is provided between the two support components 17. A positioning bearing component 12 is fixedly connected to the target calibration platform 10 by positioning screws I11. The positioning bearing component 12 is a bearing seat with an internal bearing.

[0053] The lower end of the rotating shaft support plate component 14 is rotatably connected to the target calibration table 10 via the positioning bearing component 12, and the upper end of the rotating shaft support plate component 14 is connected to the image acquisition instrument 6. When the rotating shaft support component 14 rotates to be close to the support component 17 of the sight 5, the image acquisition instrument 6 is close to the observation port of the sight 5; when the rotating shaft support plate component 14 rotates to be away from the support component 17 of the sight 5, the image acquisition instrument 6 is away from the observation port of the sight 5. The inner ring of the bearing of the positioning bearing component 12 is fixedly connected to a rotating shaft, which is fixedly connected to the lower end of the rotating shaft support plate component 14.

[0054] The upper end of the rotating shaft support plate component 14 is slidably connected to a plate-shaped image acquisition bracket component 15. The image acquisition instrument 6 is fixedly connected to the upper end of the bracket component 15. A positioning screw II 13 for locking the position of the image acquisition bracket component 15 is screwed onto the rotating shaft support plate component 14. The positioning screw II 13 passes through an elongated hole on the rotating shaft support plate component 14 and is screwed onto the bracket component 15, thereby connecting the rotating shaft support plate component 14 and the bracket component 15. Loosening the positioning screw II 13 and pulling the bracket component 15 allows the positioning screw II 13 to move along the elongated hole, adjusting the position of the aiming scope 5. By adjusting the position of the bracket component 15, the image acquisition instrument 6 can be easily aligned with the observation port on the right end of the aiming scope 5.

[0055] After the mechanical sights have been calibrated, the following steps can be used to calibrate the sights 5 of the product being calibrated 2.

[0056] S3, Electronic Imaging Projection Target Calibration:

[0057] Turn on the power of the target calibration positioning image projection device 22, install the sight 5 equipped with the target calibration product 2 onto the target calibration product 2, rotate the image acquisition bracket component 15 to the left until the left support component 17 supports and positions it. The image acquisition instrument 6 aligns with the observation port on the right end of the sight 5 as the image acquisition bracket component 15 rotates. At this time, the display screen 7 will display in real time the target calibration status of the target calibration plate 21 as seen from the sight 5, that is, the actual positional deviation between the correction crosshair inside the sight 5 and the sight reference crosshair 30 on the target calibration plate 21. Then, the operator only needs to look at the display screen 7 in front of them and adjust the left and right adjustment shafts and the up and down adjustment shafts on the sight 5 respectively, so that the correction crosshair inside the sight 5 is fully aligned with the sight reference crosshair 30 on the target calibration plate 21, and the task is completed. Then, record the target calibration result on the product certificate. Rotate the image acquisition bracket component 15 to the right until the right support component 17 supports and positions it, so that the image acquisition instrument 6 is away from the sight 5, and the entire target calibration process is completed.

[0058] During this process, both the inspectors and the calibration personnel can simultaneously observe the entire calibration process and results without having to readjust the calibration device to verify the results themselves. (After the positioning bearing component 12, the rotating shaft support plate component 14, the image acquisition bracket component 15, and the support component 17 are initially adjusted into place, they are tightened with positioning screws I11, II13, and III16 respectively. Subsequently, each time a different calibration product is replaced, the image acquisition bracket component 15 will fall precisely into the appropriate position of the observation port of the sight 5, without requiring any further adjustments.)

[0059] The above-described embodiments are detailed and specific, illustrating preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention, aiming to enable those skilled in the art to understand and implement the invention. However, they are not limited to the present invention, and the patent scope of the present invention should not be limited to these embodiments. Any equivalent changes or modifications made to the spirit disclosed in the present invention, without departing from the structure of the present invention, such as local improvements within the system and alterations or transformations between subsystems, are still within the patent scope of the present invention. Currently, the technical solution of this application has undergone pilot testing, i.e., small-scale experiments before large-scale mass production. After the pilot testing, user surveys were conducted on a small scale, and the survey results showed high user satisfaction. Preparations are now underway for the formal production and industrialization of the product, including intellectual property risk warning surveys.

Claims

1. A target calibration device, characterized in that, The system includes a target calibration platform assembly (20) and a target calibration plate (21) disposed to the left of the target calibration platform assembly (20). The target calibration platform assembly (20) includes a target calibration table surface (10), a left positioning shaft (26) fixedly disposed at the left end of the target calibration table surface (10), and a right positioning shaft (25) disposed at the right end of the target calibration table surface (10). The left positioning shaft (26) and the right positioning shaft (25) are coaxial. A left mechanical target calibration hole (18) is provided through the center of the left positioning shaft (26). A cross target calibration line (19) is installed on the left end face of the left positioning shaft (26). The center point of the cross target calibration line (19) coincides with the center line of the left mechanical target calibration hole (18). A right mechanical target calibration hole (9) is provided through the center of the right positioning shaft (25). The target plate (21) has a target hole reference crosshair (29) and a scale front sight reference crosshair (28) on its right side. The scale front sight reference crosshair (28) is located below the target hole reference crosshair (29). The center point of the target hole reference crosshair (29), the center point of the crosshair (19), and the axis of the right mechanical target hole (9) are on the same straight line, which is perpendicular to the right side of the target plate (21). The target product (2) is stuck between the left positioning shaft (26) and the right positioning shaft (25). The center point of the scale front sight reference crosshair (28), the scale (4) of the target product (2), and the front sight (3) of the target product (2) are on the same straight line. On the right side of the calibration plate (21), a sight reference calibration crosshair (30) is provided next to the target hole reference calibration crosshair (29). The sight reference calibration crosshair (30) and the sight (5) of the product being calibrated (2) are located on the same side of the target hole reference calibration crosshair (29). The sight reference calibration crosshair (30) coincides with the calibration crosshair inside the sight (5) of the product being calibrated (2). Two support components (17) are provided on the target calibration platform (10) along the axial direction of the sight (5). The two support components (17) are connected to the target calibration platform (10) by positioning screws III (16). A rotating shaft support plate component (14) is provided between the two support components (17). The lower end of the rotating shaft support plate component (14) is rotatably connected to the target calibration platform (10), and the upper end of the rotating shaft support plate component (14) is connected to the image acquisition instrument (6). When the rotating shaft support plate component (14) rotates to the support component (17) close to the sight (5), the image acquisition instrument (6) is close to the observation port of the sight (5). When the rotating shaft support plate component (14) rotates to the support component (17) away from the sight (5), the image acquisition instrument (6) is away from the observation port of the sight (5).

2. The target calibration device according to claim 1, characterized in that, A support plate is vertically fixed to the left end of the calibration table (10), and the left positioning shaft (26) is fixedly connected to the support plate through it. The calibration product (2) is fitted on the left positioning shaft (26), and an anti-rotation positioning block (27) is fixedly provided on the left positioning shaft (26) to cooperate with the notch at the left end of the calibration product (2).

3. The target calibration device according to claim 1, characterized in that, A support plate is vertically fixed to the right end of the calibration table (10). The right positioning shaft (25) is slidably connected to the support plate. A tapered right positioning seat (23) is elastically connected to the side of the support plate near the left positioning shaft (26). The right positioning seat (23) is fixedly connected to the right positioning shaft (25). A helical spring (24) is sleeved on the right positioning shaft (25). The helical spring (24) is set between the right positioning seat (23) and the support plate. The right positioning seat (23) is supported inside the product (2) being calibrated. The right positioning seat (23) is provided with a through hole. The axis of the through hole, the axis of the right mechanical calibration hole (9), and the center point of the cross calibration line (19) are on the same straight line.

4. The target calibration device according to claim 1, characterized in that, The target calibration platform (10) is provided with a target calibration positioning image projection device (22), which includes the image acquisition instrument (6) and a display screen (7) connected to the image acquisition instrument (6). The image acquisition instrument (6) corresponds to the observation port of the aiming scope (5).

5. The target calibration device according to claim 1, characterized in that, The upper end of the rotating shaft support plate component (14) is slidably connected to the image acquisition bracket component (15), and the rotating shaft support plate component (14) is screwed with a positioning screw II (13) for locking the position of the image acquisition bracket component (15).

6. A target calibration method, characterized in that, Using a target calibration device according to any one of claims 1 to 5 includes the following steps: S1, Perform target calibration of the target hole of the target product (2): Install the target product (2) on the target calibration table assembly (20), view from the right mechanical target calibration hole (9) to the left, and adjust the height of the target calibration plate (21) so that the center of the target calibration reference crosshair (29) on the target calibration plate (21), the center point of the crosshair (19) and the right mechanical target calibration hole (9) are on the same straight line; S2, perform mechanical sight calibration: according to the set distance between the calibration table assembly (20) and the calibration plate (21), adjust the scale (4) and the front sight (3) on the target product (2) accordingly, so that the center of the crosshair (28) of the scale and the front sight, the front sight (3) and the scale (4) are on the same straight line.

Images