Special vehicle multi-axis consistency calibration device and calibration method

Abstract

The present invention discloses a multi-axis consistency calibration device and calibration method for special vehicles. The calibration device includes a multi-spectral collimator, a movable component, and a reflector assembly. The multi-spectral optical axis emitted by the multi-spectral collimator coincides with one of the optical axes of the special vehicle. The movable component is arranged between the multi-spectral collimator and the special vehicle. The reflector assembly is mounted on the movable component. The reflector assembly can be displaced by the movable component so that the multi-spectral optical axis emitted by the multi-spectral collimator is translated to different positions, which is used to adjust the remaining optical axes of the special vehicle to coincide with the multi-spectral optical axes at different positions. The present invention can solve the technical problems of existing multi-axis consistency calibration methods for special vehicles, such as the large space required, the cumbersome operation, and the low accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of factory inspection of special vehicles, and in particular to a multi-axis consistency calibration device and a calibration method for special vehicles. Background Art

[0002] Generally speaking, special vehicles require multiple axis consistency calibration before leaving the factory, including the gun axis, daylight aiming axis, low-light aiming axis, and infrared aiming axis. Existing methods for multi-axis consistency calibration of special vehicles include the target plate method, the large-aperture collimator method, the double pentaprism expansion method, and the conventional double-plane mirror expansion method. However, these methods all have some shortcomings to a greater or lesser extent: the conventional double-plane mirror expansion method will change with environmental changes such as temperature, and it is unknown whether the two reflectors are still parallel; the double pentaprism expansion method cannot achieve infrared light transmission, and only one direction can guarantee accuracy; the large-aperture parallel light tube method cannot be moved and requires a larger site; the target plate method is to place the target plate at a fixed distance, on which a target cross corresponding to each axis is designed, and a calibration mirror is inserted into the gun axis. Each observation and aiming equipment and the calibration mirror are aligned with the cross target on their respective target plates, then it is considered that the consistency correction of each axis is completed, and the size of the target plate is related to the distribution of each observation and aiming axis on the special vehicle. Usually, the length and width of the target plate can reach 1.8m×1.8m, which is relatively large in size, and different target plates need to be made or different stickers need to be printed on the target plate to adapt to different vehicles, which is more troublesome to operate. Summary of the Invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the present invention proposes a multi-axis consistency calibration device and calibration method for special vehicles, which solves the technical problems of the existing multi-axis consistency calibration method for special vehicles, such as the need for a large site, cumbersome operation and low accuracy.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a multi-axis consistency calibration device for a special vehicle, comprising:

[0006] A multi-spectral collimator, the multi-spectral light axis of which coincides with one of the optical axes of the special vehicle;

[0007] a movable component disposed between the multi-spectral collimator and the special vehicle;

[0008] A reflector assembly is mounted on the movable assembly. The reflector assembly can be displaced under the drive of the movable assembly so that the multispectral optical axis emitted by the multispectral parallel light tube is translated to different positions, and is used to adjust the remaining optical axes of the special vehicle to coincide with the multispectral optical axes at different positions.

[0009] In some embodiments, the movable assembly includes a guide rail, a first slider and a second slider, wherein the first slider and the second slider are respectively slidably connected to the guide rail;

[0010] The reflector assembly includes a first reflector and a second reflector, which are respectively installed on the first slider and the second slider. The first reflector and the second reflector move on the guide rail driven by the first slider and the second slider so that the distance between the reflection center points of the first reflector and the second reflector is equal to the distance between each two optical axes of the special vehicle.

[0011] In some embodiments, the length of the guide rail is greater than the distance between two optical axes that are farthest apart in the special vehicle.

[0012] In some embodiments, the first reflector is formed with a first reflective surface and a second reflective surface, and the angle α between the first reflective surface and the second reflective surface is 135°.

[0013] In some embodiments, the second reflector is formed with a third reflective surface and a transmissive surface, the angle β between the third reflective surface and the transmissive surface is 135°, the transmissive surface is parallel to the first reflective surface, and the third reflective surface is parallel to the second reflective surface.

[0014] In some embodiments, the reflector assembly further includes an autocollimator mounted on the second slider. The light axis emitted by the autocollimator can pass through the transmission surface to illuminate the first reflective surface and return to ensure parallelism between the first reflector and the second reflector.

[0015] In some embodiments, an adjustment mechanism is further included, wherein the adjustment mechanism is mounted on the first slider, and the first reflector is mounted on the adjustment mechanism. The first reflector can adjust its posture under the drive of the adjustment mechanism so that the first reflector is parallel to the second reflector.

[0016] In some embodiments, the adjustment mechanism includes a base, an adjustment plate, an intermediate plate, a first adjusting nut, a second adjusting nut, a first rotating shaft, a second rotating shaft and a hinge seat, the base is fixed to the upper surface of the first slider, the hinge seat is fixed to one end of the base, the two ends of the first rotating shaft are respectively hinged to the two ends of the hinge seat, one end of the intermediate plate is rotatably connected to the first rotating shaft, a spring is provided between the other end of the intermediate plate and the base, the adjustment plate is provided on the upper surface of the intermediate plate, and one end of the adjustment plate is rotatably connected to one end of the intermediate plate through the second rotating shaft, a notch is formed at the other end of the adjustment plate, and the second adjusting nut is provided through the notch; at the same time, a pressure block is provided in the notch, and the first adjusting nut is provided through the pressure block and the intermediate plate.

[0017] In some embodiments, the multi-spectral collimator is a multi-spectral collimator.

[0018] In a second aspect, the present invention further provides a method for calibrating the multi-axis consistency of a special vehicle. The method is implemented based on the multi-axis consistency calibration device for a special vehicle provided in the first aspect of the present invention, and includes the following steps:

[0019] Step S1, determining a reference optical axis, wherein the reference optical axis is any one of the multiple optical axes of the special vehicle that coincides with the multispectral optical axis emitted by the multispectral collimator;

[0020] Step S2, setting a movable component between the special vehicle and the multi-spectral collimator, and installing a reflector component on the movable component;

[0021] Step S3, adjusting the position of the reflector assembly so that the multispectral optical axis emitted by the multispectral collimator is reflected by the reflector assembly at different positions, thereby translating the multispectral optical axis;

[0022] In step S4, the remaining optical axes of the special vehicle are adjusted to coincide with the multi-spectral optical axes at different positions, thereby completing the consistency calibration of the multi-axis lines.

[0023] Compared with the prior art, the present invention provides a multi-axis consistency calibration device and calibration method for special vehicles, which can directly mount the reflector assembly, movable assembly and multi-spectral collimator on the front end of the special vehicle. The device can be used after the optical axis position is aligned, without the need for a large space. The movable assembly can drive the reflector assembly to move, and translate the multi-spectral optical axis emitted by the multi-spectral collimator to different positions to adjust whether the remaining optical axes of the special vehicle coincide with the multi-spectral optical axes at different positions. If they coincide, the multi-optical axes are considered to be consistent, so there is no need to make different target plates, and the device has strong versatility and simple operation. In addition, the present invention also has the advantage of high correction accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall layout diagram of the multi-axis consistency calibration device for special vehicles according to the present invention;

[0025] Figure 2 is a schematic structural diagram of the first reflector of the present invention;

[0026] Figure 3 is a schematic structural diagram of the second reflector of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the adjustment mechanism of the present invention;

[0028] Figure 5 This is another structural diagram of the regulating mechanism of the present invention;

[0029] Figure 6 It is a flow chart of the multi-axis consistency calibration method for special vehicles described in the present invention.

[0030] The following are the descriptions of the reference numerals:

[0031] 100. Multi-spectral collimator;

[0032] 200, movable component, 210, guide rail, 220, first slider, 230, second slider;

[0033] 300, reflector assembly, 310, first reflector, 311, first reflective surface, 312, second reflective surface, 320, second reflector, 321, third reflective surface, 322, transmission surface, 330, autocollimator;

[0034] 400 , adjustment mechanism, 410 , base, 420 , adjustment plate, 430 , middle plate, 440 , first adjustment nut, 450 , second adjustment nut, 460 , first rotating shaft, 470 , second rotating shaft, 480 , hinged seat, 490 , pressure block. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] In view of the technical problems of the existing multi-axis consistency calibration method for special vehicles, such as the need for a large site, cumbersome operation and low accuracy, the present invention proposes a multi-axis consistency calibration device and calibration method for special vehicles.

[0037] Figure 1This is the overall layout diagram of the multi-axis consistency calibration device for special vehicles of the present invention, as shown in FIG. Figure 1 As shown, the calibration device includes a multi-spectral collimator 100, a movable component 200 and a reflector component 300. In the initial position, the multi-spectral optical axis emitted by the multi-spectral collimator 100 coincides with one of the optical axes of the special vehicle; the movable component 200 is arranged between the multi-spectral collimator 100 and the special vehicle; the reflector component 300 is installed on the movable component 200, and the reflector component 300 can be displaced under the drive of the movable component 200 so that the multi-spectral optical axis emitted by the multi-spectral collimator 100 is translated to different positions, which is used to adjust the remaining optical axes of the special vehicle to coincide with the multi-spectral optical axes at different positions.

[0038] When the multi-axis consistency calibration device for special vehicles provided by the present invention is used, first one of the optical axes of the special vehicle is selected as a reference, and then the multi-spectral optical axis emitted by the multi-spectral collimator 100 is adjusted to coincide with the reference optical axis, which is the initial position; then the reflector assembly 300 is moved by the movable assembly 200, so that the multi-spectral optical axis emitted by the multi-spectral collimator 100 is translated to different positions. When the multi-spectral optical axis is at a different position, the other optical axes of the special vehicle are adjusted so that the other optical axes coincide with the multi-spectral optical axes at the corresponding positions. When all the remaining optical axes coincide with the corresponding translated multi-spectral optical axes, the consistency calibration is completed. Compared with the prior art, the calibration device of the present invention can move the multi-spectral optical axis, thereby eliminating the need for a large site and the need to prepare target plates of different sizes, making the calibration process simpler and more accurate.

[0039] It should be noted that the multispectral optical axis emitted by the multispectral collimator 100 is translated to different positions, which means that after one of the optical axes of the special vehicle is selected as a reference, the distance between each of the remaining optical axes and the reference optical axis is different. The multispectral optical axis emitted by the multispectral collimator 100 can be translated to the above-mentioned different distances through the reflector assembly 300. Under the condition that the multispectral optical axis is translated to each of the above-mentioned positions, the optical axis corresponding to the special vehicle is adjusted to coincide with the multispectral optical axis at that position, that is, the optical axis is considered to be consistent with the reference optical axis.

[0040] In one embodiment, the movable component 200 includes a guide rail 210, a first slider 220 and a second slider 230, and the first slider 220 and the second slider 230 are respectively slidably connected to the guide rail 210; the reflector assembly 300 includes a first reflector 310 and a second reflector 320, and the first reflector 310 and the second reflector 320 are respectively installed on the first slider 220 and the second slider 230, and the first reflector 310 and the second reflector 320 move on the guide rail 210 under the drive of the first slider 220 and the second slider 230, so that the distance between the reflection center points o and o1 of the first reflector 310 and the second reflector 320 is equal to the distance between each two optical axes of the special vehicle.

[0041] In one embodiment, the length of the guide rail 210 is greater than the distance between the two farthest optical axes in the special vehicle to ensure consistent calibration of all optical axes of the special vehicle.

[0042] In one embodiment, Figure 2 As shown, the first reflector 310 is formed with a first reflective surface 311 and a second reflective surface 312. The angle α between the first reflective surface 311 and the second reflective surface 312 is 135°, and its accuracy is ±2″. In one embodiment, as Figure 3 As shown, the second reflector 320 is formed with a third reflective surface 321 and a transmissive surface 322 , and the included angle β between the third reflective surface 321 and the transmissive surface 322 is 135°, with an accuracy of ±2″.

[0043] In one embodiment, the transmission surface 322 is parallel to the first reflection surface 311 , and the third reflection surface 321 is parallel to the second reflection surface 312 .

[0044] In one embodiment, the reflector assembly 300 further includes an autocollimator 330, which is mounted on the second slider 230. The light axis emitted by the autocollimator 330 can be irradiated onto the first reflective surface 311 through the transmission surface 322 and returned, so as to monitor and adjust the parallelism between the first reflector 310 and the second reflector 320 in real time.

[0045] In one embodiment, the second reflector 320 is fixedly mounted on the second slider 230, and the first reflector 310 is movably mounted on the first slider 220 via an adjustment mechanism 400, so as to adjust the posture of the first reflector 310 to ensure that the transmission surface 322 is arranged parallel to the first reflection surface 311, and the third reflection surface 321 is arranged parallel to the second reflection surface 312.

[0046] In one embodiment, the calibration device further includes an adjustment mechanism 400 , wherein the adjustment mechanism 400 is mounted on the first slider 220 , and the first reflector 310 is mounted on the adjustment mechanism 400 .

[0047] In one embodiment, Figure 4 and Figure 5 As shown, the adjustment mechanism 400 includes a base 410, an adjustment plate 420, an intermediate plate 430, a first adjustment nut 440, a second adjustment nut 450, a first rotating shaft 460, a second rotating shaft 470 and a hinge seat 480. The base 410 is fixed to the upper surface of the first slider 220, the hinge seat 480 is fixed to one end of the base 410, the two ends of the first rotating shaft 460 are respectively hinged to the two ends of the hinge seat 480, and one end of the intermediate plate 430 is rotatably connected to the first rotating shaft 460. A spring is provided between the other end of the intermediate plate 430 and the base 410, the adjusting plate 420 is provided on the upper surface of the intermediate plate 430, and one end of the adjusting plate 420 is rotatably connected to one end of the intermediate plate 430 through a second rotating shaft 470, and a notch is formed at the other end of the adjusting plate 420, and the second adjusting nut 450 is provided through the notch; at the same time, a pressing block 490 is provided in the notch, and the first adjusting nut 440 is provided through the pressing block 490 and the intermediate plate 430.

[0048] The working principle of the above-mentioned adjustment mechanism 400 is as follows:

[0049] By rotating the first adjusting nut 440 downward, the pressure block 490 can be driven downward to move the intermediate plate 430 downward, and the other end of the intermediate plate 430 is rotatably connected to the base 410 via the first rotating shaft 460. Therefore, this end of the intermediate plate 430 can move up and down under the action of the first adjusting nut 440 to adjust the pitch attitude of the first reflecting mirror 310 on the first slider 220; at the same time, by rotating the second adjusting nut 450 left and right, the end of the adjusting plate 420 with the notch can be moved, and since the other end of the adjusting plate 420 is rotatably connected to the intermediate plate 430 via the second rotating shaft 470, the second adjusting nut 450 can drive the adjusting plate 420 to rotate horizontally on the intermediate plate 430 to adjust the left and right attitude of the first reflecting mirror 310 in the horizontal direction. The above two can ensure that the first reflecting mirror 310 and the second reflecting mirror 320 remain parallel.

[0050] In one embodiment, the light emitted by the multi-spectral collimator 100 is one of visible light, mid-infrared and far-infrared.

[0051] On the other hand, Figure 6As shown, the present invention provides a method for calibrating the consistency of multiple axes of a special vehicle. The calibration method is implemented based on a multi-axis consistency calibration device for a special vehicle provided by the present invention, and specifically includes the following steps:

[0052] Step S1, determining a reference optical axis, wherein the reference optical axis is any one of the multiple optical axes of the special vehicle that coincides with the multi-spectral optical axis emitted by the multi-spectral collimator 100;

[0053] Step S2, setting a movable component 200 between the special vehicle and the multi-spectral collimator 100, and installing a reflector component 300 on the movable component 200;

[0054] Specifically, the first slider 220 and the second slider 230 are slidably connected to the guide rail 210, and then the first reflector 310 and the second reflector 320 are installed on the first slider 220 and the second slider 230 respectively. During installation, pay attention to keeping the first reflective surface 311 parallel to the transmissive surface 322, and keeping the second reflective surface 312 parallel to the third reflective surface 321.

[0055] The parallelism of the first reflector 310 and the second reflector 320 can be monitored and adjusted in real time by the autocollimator 330 , and can be adjusted in conjunction with the adjustment mechanism 400 .

[0056] Step S3, adjusting the position of the reflector assembly 300 so that the multispectral optical axis emitted by the multispectral collimator 100 is reflected by the reflector assembly 300 at different positions, thereby translating the multispectral optical axis;

[0057] In step S4, the remaining optical axes of the special vehicle are adjusted to coincide with the multi-spectral optical axes at different positions, thereby completing the consistency calibration of the multi-axis lines.

[0058] The use process of the multi-axis consistency calibration device and calibration method for special vehicles provided by the present invention is as follows:

[0059] Taking one of the optical axes of the special vehicle as a reference, the visible light emitted by the multi-spectral collimator 100 is adjusted to coincide with it, and then the movable component 200 is placed between the multi-spectral collimator 100 and the special vehicle, and the distance between the first slider 220 and the second slider 230 is adjusted so that the distance between the reflection center points o and o1 of the first reflector 310 and the second reflector 320 is equal to the distance between the next optical axis to be calibrated and the reference optical axis. The optical axis to be calibrated is adjusted to coincide with the multi-spectral optical axis after translation through the first reflector 310 and the second reflector 320, and it is considered that the optical axis coincides with the reference optical axis. Repeat the above process to adjust the remaining optical axes one by one to coincide with the reference optical axis to complete the consistency calibration.

[0060] Therefore, the present invention can achieve in-situ calibration. The equipment can be directly installed on the front end of the special vehicle and can be used after the optical axis position is aligned, without requiring a large space. The equipment has strong scalability and versatility. As long as the length of the guide rail 210 can cover two products with a relatively long optical axis distance, it can be used without changing the accuracy. In addition, the present invention adopts a multi-spectral collimator and autocollimator for monitoring, which can easily achieve a parallel calibration accuracy within 10", which is higher than the target plate method.

[0061] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A multi-axis consistency calibration device for special vehicles, characterized in that: include: A multi-spectral collimator, the multi-spectral light axis of which coincides with one of the optical axes of the special vehicle; a movable component disposed between the multi-spectral collimator and the special vehicle; a reflector assembly mounted on the movable assembly, the reflector assembly being capable of displacement driven by the movable assembly so as to translate the multispectral optical axis emitted by the multispectral collimator to different positions, and being used to adjust the remaining optical axes of the special vehicle to coincide with the multispectral optical axes at different positions; The reflector assembly includes a first reflector and a second reflector, the first reflector is formed with a first reflective surface and a second reflective surface, the angle α between the first reflective surface and the second reflective surface is 135°, the second reflector is formed with a third reflective surface and a transmissive surface, the angle β between the third reflective surface and the transmissive surface is 135°, the transmissive surface is arranged parallel to the first reflective surface, and the third reflective surface is arranged parallel to the second reflective surface. The reflector assembly also includes an autocollimator, which is mounted on a second slider. The light axis emitted by the autocollimator can pass through the transmissive surface to illuminate the first reflective surface and return, so as to ensure the parallelism between the first reflector and the second reflector.

2. The multi-axis consistency calibration device for special vehicles according to claim 1, characterized in that: The movable assembly includes a guide rail, a first slider and a second slider, wherein the first slider and the second slider are respectively slidably connected to the guide rail; The first reflector and the second reflector are respectively installed on the first slider and the second slider. The first reflector and the second reflector move on the guide rail driven by the first slider and the second slider so that the distance between the reflection center points of the first reflector and the second reflector is equal to the distance between each two optical axes of the special vehicle.

3. The multi-axis consistency calibration device for special vehicles according to claim 2, characterized in that: The length of the guide rail is greater than the distance between two optical axes that are farthest apart in the special vehicle.

4. The multi-axis consistency calibration device for special vehicles according to claim 2, characterized in that: It also includes an adjustment mechanism, which is installed on the first slider. The first reflector is installed on the adjustment mechanism. The first reflector can adjust its posture under the drive of the adjustment mechanism so that the first reflector is parallel to the second reflector.

5. The multi-axis consistency calibration device for special vehicles according to claim 4, characterized in that: The adjusting mechanism includes a base, an adjusting plate, an intermediate plate, a first adjusting nut, a second adjusting nut, a first rotating shaft, a second rotating shaft and a hinge seat, the base is fixed to the upper surface of the first sliding block, the hinge seat is fixed to one end of the base, two ends of the first rotating shaft are respectively hinged to the two ends of the hinge seat, one end of the intermediate plate is rotatably connected to the first rotating shaft, and a spring is provided between the other end of the intermediate plate and the base, the adjusting plate is provided on the upper surface of the intermediate plate, and one end of the adjusting plate is rotatably connected to one end of the intermediate plate through the second rotating shaft, a notch is formed at the other end of the adjusting plate, and the second adjusting nut is arranged through the notch; at the same time, a pressure block is provided in the notch, and the first adjusting nut is arranged through the pressure block and the intermediate plate.

6. The multi-axis consistency calibration device for special vehicles according to claim 1, characterized in that: The multi-spectral collimator is a multi-spectral collimator.

7. A method for calibrating the multi-axis consistency of a special vehicle, implemented based on the multi-axis consistency calibration device for a special vehicle according to any one of claims 1 to 6, characterized in that: The calibration method comprises the following steps: Step S1, determining a reference optical axis, wherein the reference optical axis is any one of the multiple optical axes of the special vehicle that coincides with the multispectral optical axis emitted by the multispectral collimator; Step S2, setting a movable component between the special vehicle and the multi-spectral collimator, and installing a reflector component on the movable component; Step S3, adjusting the position of the reflector assembly so that the multispectral optical axis emitted by the multispectral collimator is reflected by the reflector assembly at different positions, thereby translating the multispectral optical axis; In step S4, the remaining optical axes of the special vehicle are adjusted to coincide with the multi-spectral optical axes at different positions, thereby completing the consistency calibration of the multi-axis lines.

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