A full-spectrum zero position calibration device
By combining an autocollimating theodolite, a pentagonal prism, and a plane mirror, and using limiting blocks and ball bearings for fixation, the zero-position calibration device for the full-spectrum aiming instrument's mirror assembly achieves efficient and accurate calibration, solving the problems of long calibration time and large errors in existing technologies, and improving aiming accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NO 6409 FACTORY PLA
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing technology, the zero-position calibration of the reflector group of the full-spectrum aiming instrument requires multiple devices, is time-consuming and has large errors, and is prone to optical axis deviation during the calibration process, affecting aiming accuracy.
A combination of autocollimating theodolite, pentagonal prism, and plane mirror is used. The full-spectrum aiming mirror assembly is fixed by limiting blocks and ball bearings. Precise adjustment and testing are carried out in conjunction with the beam path of the autocollimating theodolite to reduce assembly and adjustment errors.
This improves the efficiency and accuracy of zero-position calibration of the full-spectrum aiming mirror assembly, reduces errors, and ensures aiming accuracy.
Smart Images

Figure CN224594935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of full-spectrum calibration equipment technology, and in particular to a full-spectrum zero-position calibration device. Background Technology
[0002] Full-spectrum sights can significantly improve aiming speed and accuracy for drones. Calibrating the zero point of a full-spectrum sight is a crucial step in ensuring accurate aiming. Full-spectrum sights require zero-point calibration of the aiming baseline before leaving the factory. During use, due to component aging and vibration, the zero point of the aiming baseline may shift, reducing aiming accuracy and necessitating frequent calibration.
[0003] In the existing technology, the detection and debugging of the full-spectrum aiming mirror group requires several devices such as a full-spectrum platform and a light source, which takes a long time and has a large error. The full-spectrum aiming mirror group is prone to optical axis deviation when it is fixed.
[0004] Therefore, there is an urgent need for a full-spectrum zero-position calibration device that can improve efficiency, enhance zero-position accuracy, and ensure error range, for full-spectrum aiming instrument reflector assembly full-spectrum zero-position debugging and testing. Utility Model Content
[0005] This invention provides a full-spectrum zero-position calibration device, which can efficiently and accurately adjust and detect the full-spectrum zero position of the full-spectrum aiming mirror assembly, reducing assembly and adjustment errors.
[0006] To achieve the above objectives, this utility model provides a full-spectrum zero-position calibration device, comprising: an autocollimating theodolite, detachably fixed to a tripod; and a calibration platform, comprising: a base plate for bearing load, on which a movable theodolite base is placed, a plane mirror above the theodolite base, a first support frame above the base plate, and a calibration plate above the first support frame. The calibration plate is used to place a pentagonal prism and a full-spectrum aiming instrument mirror assembly to be calibrated. The full-spectrum aiming instrument mirror assembly is fixed by a limiting block. The pentagonal prism is arranged on the beam path emitted by the autocollimating theodolite. The reflecting surface of the plane mirror is placed horizontally upward and vertically below the pentagonal prism, so that the beam emitted by the autocollimating theodolite is refracted by the pentagonal prism and then vertically downward into the plane mirror. The plane mirror is used to allow the light reflected by the plane mirror to enter the center of the autocollimating theodolite by moving the theodolite base.
[0007] Preferably, a second support frame is provided above the base plate. The second support frame includes two support plates and a horizontal plate fixed above the support plates. The two support plates and the horizontal plate are combined to form a frame structure. The horizontal plate is used to place the autocollimating theodolite after it has been disassembled from the tripod.
[0008] Preferably, the first support frame includes: two upright plates and a connecting plate fixed above the upright plates, the two upright plates and the connecting plate are combined to form a frame structure, and an adjustment plate is provided above the connecting plate.
[0009] Preferably, two limiting blocks are fixed on the coupling plate and arranged along the length of the coupling plate. The limiting blocks have limiting holes, and a ball is fixed in the limiting hole. A limiting adjustment and fastening screw is provided behind the ball in the limiting hole. A chamfer is provided in front of the limiting hole to prevent the ball from rolling out of the limiting hole. The ball protrudes outward along the side of the limiting block to tighten the full-spectrum aiming mirror assembly to be adjusted.
[0010] Preferably, a level is also placed on the connecting plate.
[0011] In the above-described implementation of this utility model, the full-spectrum aiming instrument reflector assembly to be debugged can be placed on a mounting plate and fixed by limiting blocks. After the autocollimating theodolite is placed in front of the full-spectrum aiming instrument reflector and leveled, autocollimation is performed. By adjusting the position of the full-spectrum aiming instrument reflector, the reflected light enters the center of the autocollimating theodolite. After fixing the position of the full-spectrum aiming instrument reflector, the rotary transformer is adjusted to make the current position of the full-spectrum aiming instrument reflector 0. The full-spectrum aiming instrument reflector assembly is then removed and reinstalled into the full-spectrum aiming instrument to complete the full-spectrum zero-position debugging. This utility model, through the application of an autocollimating theodolite, a pentagonal prism, and a plane reflector, reduces assembly and adjustment errors and improves the accuracy of detecting the 45° position of the full-spectrum aiming instrument reflector. The full-spectrum aiming instrument reflector assembly is positioned by two limiting blocks, resulting in higher positioning accuracy. Attached Figure Description
[0012] Figure 1 A schematic diagram of the structure of a full-spectrum zero-position calibration device provided by this utility model. Figure 1 ;
[0013] Figure 2 A schematic diagram of the structure of a full-spectrum zero-position calibration device provided by this utility model. Figure 2 ;
[0014] Figure 3 A schematic diagram of the structure of a full-spectrum zero-position calibration device provided by this utility model. Figure 3 ;
[0015] Figure 4 A schematic diagram of the calibration method for a full-spectrum zero-position calibration device provided by this utility model. Figure 1 ;
[0016] Figure 5 A schematic diagram of the calibration method for a full-spectrum zero-position calibration device provided by this utility model. Figure 2 ;
[0017] Figure 6 A schematic diagram of the calibration method for a full-spectrum zero-position calibration device provided by this utility model. Figure 3 ;
[0018] Figure 7 A schematic diagram of the limiting block limiting method of a full-spectrum zero-position calibration device provided by this utility model.
[0019] Figures 1-7 Figure labels in the diagram:
[0020] 1. Connecting plate; 2. Horizontal plate; 3. Support plate; 4. Base plate; 5. Vertical plate; 6. Limiting block; 7. Autocollimating theodolite; 8. Plane mirror; 9. Theodolite base; 10. Level; 11. Pentagonal prism; 12. Adjustment plate; 14. Full-spectrum platform; 15. Tripod; 16. First full-spectrum aiming instrument mirror; 17. Second full-spectrum aiming instrument mirror; 18. Rotary transformer; 19. Ball bearing; 20. Limiting adjustment and fastening screw. Detailed Implementation
[0021] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0022] In this utility model, for ease of description, directional terms such as "upper" and "lower" generally refer to the "upper" and "lower" along the Z-direction when the corresponding component is in use. Additionally, the directional terms "inner" and "outer" refer to the "inner" and "outer" relative to the contour of the corresponding component itself. Furthermore, the terms "first," "second," etc., used in this application are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are only for explaining and illustrating this utility model and should not be construed as limiting this utility model.
[0023] See Figures 1 to 7This utility model discloses a full-spectrum zero-position calibration device for detecting and adjusting the full-spectrum zero position of the reflector assembly of a full-spectrum aiming instrument. It includes an adjustment frame that can be placed on a full-spectrum platform 14. The adjustment frame includes a base plate 4, which has a plate-like structure and serves as a load-bearing element. A first support frame and a second support frame are located above the base plate 4. The second support frame is located on one side of the base plate 4 and supports an autocollimating theodolite 7 in its non-working state. The autocollimating theodolite 7 is used for angle measurement. When the autocollimating theodolite 7 needs to be used, it can be removed from the second support frame and placed on a tripod 15. The second support frame includes two support plates 3 and a horizontal plate 2 fixed above the support plates 3. The two support plates 3 and the horizontal plate 2 form a frame structure, and the autocollimating theodolite 7 is placed on the horizontal plate 2 for storage. Furthermore, the first support frame, located on the other side of the base plate 4, includes: two upright plates 5 and a connecting plate 1 fixed above the upright plates 5. The two upright plates 5 and the connecting plate 1 form a frame structure. An adjustment plate 12 is provided above the connecting plate 1 for placing the pentagonal prism 11 and the full-spectrum aiming mirror assembly to be adjusted.
[0024] For example, the two upright plates 5 and the two support plates 3 can be fixed to the base plate 4 with a number of screws and washers respectively. Similarly, the horizontal plate 2 and the connecting plate 1 can also be fixed to the two support plates 3 and the upright plates 5 with screws and washers respectively. It is understood that this embodiment does not limit the number and type of screws and washers, and can be set according to production needs.
[0025] Furthermore, two limiting blocks 6 are fixed on the coupling plate 1 along the length of the coupling plate 1. The limiting blocks 6 are used to position the full-spectrum aiming mirror assembly to be adjusted and prevent it from moving. The two limiting blocks 6 are located at the edge of the side end face of the coupling plate 1. The limiting blocks 6 have limiting holes. A ball bearing 19 is fixed in the limiting hole. A limiting adjustment and fastening screw 20 is provided behind the ball bearing 19. A chamfer is provided in front of the limiting hole of the limiting block 6 to prevent the ball bearing 19 from rolling out of the limiting hole. The ball bearing 19 protrudes outward along the side of the limiting block 6 to press against the full-spectrum aiming mirror assembly after it is placed.
[0026] Furthermore, the adjustment plate 12 has a rectangular plate structure and is located on the connecting plate 1. It has a central hole that runs radially through it. The pentagonal prism 11 can be placed at the corresponding position of the central hole of the adjustment plate 12. A level 10 is also fixed on the adjustment plate 12. The level 10 can be made horizontal by adjusting the full-spectrum platform 14. A movable theodolite base 9 is also provided above the base plate 4. The theodolite base 9 is located between the two vertical plates 5. A plane mirror 8 is provided above the theodolite base 9. The plane mirror 8 is vertically set below the pentagonal prism 11, with the reflecting surface of the plane mirror 8 facing upwards and placed horizontally.
[0027] When using the calibration device of this embodiment to test and adjust the reflector assembly of the full-spectrum aiming instrument, the autocollimating theodolite 7 is first removed from the second support frame and placed on the tripod 15. The pentagonal prism 11 is placed at the center hole of the modulation plate 12. For example, the autocollimating theodolite 7 can be placed 9m in front of the pentagonal prism 11, and the height of the autocollimating theodolite 7 can be equivalent to the placement height of the pentagonal prism 11, so as to ensure that the pentagonal prism 11 is placed on the beam path emitted by the autocollimating theodolite 7. After the autocollimating theodolite 7 is adjusted to be horizontal, it enters the autocollimating working state. After the reticle projection of the autocollimating theodolite 7 is refracted by the pentagonal prism 11, it is vertically downward and enters the plane reflector 8. By adjusting the theodolite base 9 below the plane reflector 8, the light reflected by the plane reflector 8 can enter the center of the autocollimating theodolite 7. Then, the plane reflector 8 and the theodolite base 9 below it are fixed with glue.
[0028] Further, after determining the positions of the plane mirror 8 and the theodolite mount 9, the level 10 and pentagonal prism 11 are removed from the adjustment plate 12. The full-spectrum aiming instrument mirror assembly to be adjusted is placed on the connecting plate 1 and fixed by the ball bearings 19 of the limiting block 6. Specifically, the full-spectrum aiming instrument mirror assembly includes: a first full-spectrum aiming instrument mirror 16, a second full-spectrum aiming instrument mirror 17, and a rotary transformer 18. The first full-spectrum aiming instrument mirror 16 is placed on the connecting plate 1 and fixed by the limiting block 6. The second full-spectrum aiming instrument mirror 17 is fixed below the rotary transformer 18. The rotary transformer 18 can drive the second full-spectrum aiming instrument mirror 17 to rotate. The full-spectrum aiming instrument integrated tester cable is connected, and the current position of the second full-spectrum aiming instrument mirror 17 is detected using the full-spectrum aiming instrument integrated tester. Then, the autocollimating theodolite 7 is placed in front of the second full-spectrum aiming instrument mirror 17, adjusted to be level, and autocollimation is performed. Adjust the position of the second full-spectrum aiming mirror 17 so that the reflected light enters the center of the autocollimating theodolite 7. At this time, the position of the second full-spectrum aiming mirror 17 is 45°, that is, the angle between the reflecting surface of the second full-spectrum aiming mirror 17 and the upper crystal is 45°. After fixing the position of the second full-spectrum aiming mirror 17, adjust the rotary transformer 18 to make the current position of the second full-spectrum aiming mirror 17 0, and then fix the position of the rotary transformer 18. The zero-position calibration is completed. Use the full-spectrum aiming comprehensive tester to drive the full-spectrum aiming mirror 17 to rotate α°, move and adjust the height of the tripod 15 and the angle of the autocollimating theodolite 7 to perform autocollimation operation. After the reticle projection of the autocollimating theodolite 7 is emitted, it is refracted by the second full-spectrum aiming mirror 17 and then enters the plane mirror 8 vertically downward. The reflected light enters the center of the autocollimating theodolite 7 along the original path. Read the value of the autocollimating theodolite 7 to see if it is 2α°, and confirm whether the error is within the acceptable range. After completing the above calibration work, remove the full-spectrum aiming mirror assembly and reinstall it into the full-spectrum aiming instrument to complete the full-spectrum zero-position calibration and debugging.
[0029] This embodiment of the invention reduces assembly and adjustment errors and improves the 45° position accuracy of the full-spectrum aiming instrument's reflector by utilizing the autocollimating theodolite 7, pentagonal prism 11, and plane reflector 8. The full-spectrum aiming instrument's reflector assembly is positioned using two limiting blocks 6 and ball bearings 19, resulting in higher positioning accuracy. The debugging bench of this embodiment features a rationally designed overall mechanical structure with bolted connections, facilitating easy assembly and disassembly.
[0030] The above provides a detailed description of the full-spectrum zero-point calibration device provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods disclosed in this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the core ideas disclosed in this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims disclosed in this utility model.
Claims
1. A full spectrum zero calibration device, characterized in that, include: The self-collimating theodolite can be detachably fixed to a tripod; The debugging stand includes: a base plate for supporting the instrument, a movable theodolite mount on the base plate, a plane mirror above the theodolite mount, a first support frame above the base plate, and a debugging plate above the first support frame. The debugging plate is used to place a pentagonal prism and a full-spectrum aiming instrument mirror assembly to be debugged. The full-spectrum aiming instrument mirror assembly is fixed by a limiting block. The pentagonal prism is arranged on the beam path emitted by the autocollimating theodolite. The reflecting surface of the plane mirror is placed horizontally upward and vertically below the pentagonal prism, so that the beam emitted by the autocollimating theodolite is refracted by the pentagonal prism and then vertically downward into the plane mirror. The plane mirror is used to allow the light reflected by the plane mirror to enter the center of the autocollimating theodolite by moving the theodolite mount.
2. A full spectrum zero calibration device as claimed in claim 1, characterized in that A second support frame is also provided above the base plate. The second support frame includes two support plates and a horizontal plate fixed above the support plates. The two support plates and the horizontal plate are combined to form a frame structure. The horizontal plate is used to place the autocollimating theodolite after it has been disassembled from the tripod.
3. A full spectrum zero calibration device as claimed in claim 2, characterized in that The first support frame includes: two upright plates and a connecting plate fixed above the upright plates. The two upright plates and the connecting plate are combined to form a frame structure. An adjustment plate is provided above the connecting plate.
4. A full spectrum zero calibration device as claimed in claim 3, characterized in that Two limiting blocks are fixed on the coupling plate and arranged along the length of the coupling plate. The limiting blocks have limiting holes, and ball bearings are fixed in the limiting holes. A limiting adjustment and fastening screw is provided behind the ball bearings in the limiting holes. A chamfer is provided in front of the limiting holes to prevent the ball bearings from rolling out of the limiting holes. The ball bearings protrude outward along the side of the limiting blocks to tighten the full-spectrum aiming mirror assembly to be adjusted.
5. A full spectrum zero calibration device as claimed in claim 3, wherein, A level is also placed on the connecting plate.