Special vehicle multi-axis consistency calibration device and calibration method

Abstract

The invention discloses a special vehicle multi-axis consistency calibration device and method, the calibration device comprises a multi-spectral collimator, a movable assembly and a reflector assembly, the multi-spectral optical axis emitted by the multi-spectral collimator coincides with one optical axis of a special vehicle, and the movable assembly is connected with the reflector assembly. The movable assembly is arranged between the multispectral collimator and the special vehicle, the reflector assembly is installed on the movable assembly, and the reflector assembly can be driven by the movable assembly to move so that multispectral optical axes emitted by the multispectral collimator can be translated to different positions. And the other optical axes of the special vehicle are adjusted to coincide with the multispectral optical axes at different positions. The technical problems that an existing multi-axis consistency calibration method of the special vehicle needs a large site, operation is troublesome, and precision is low can be solved.

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 need to be calibrated for consistency of multiple axes, such as the gun axis, the white light aiming axis, the low light aiming axis, and the infrared aiming axis, before leaving the factory. The existing methods for calibrating the consistency of multiple axes of special vehicles include the target plate method, the large-caliber 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 collimator 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 are designed target crosses corresponding to each axis, and a gun calibration mirror is inserted into the gun axis. Each observation and aiming equipment and the gun calibration mirror are aligned with the cross target correction 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 requiring a large site, being cumbersome to operate and having low accuracy.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a multi-axis consistency calibration device for a special vehicle, comprising: A multi-spectral collimator, the multi-spectral optical 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 is mounted on the movable assembly. The reflector assembly can be displaced under the drive of the movable assembly so that the multi-spectral optical axis emitted by the multi-spectral parallel light tube is translated to different positions, and is used to adjust the remaining optical axis lines of the special vehicle to coincide with the multi-spectral optical axes at different positions.

[0005] In some embodiments, the movable component 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 reflector assembly includes a first reflector and a second reflector, which are respectively mounted on the first slider and the second slider, and 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.

[0006] 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.

[0007] In some embodiments, the first reflector is formed with a first reflective surface and a second reflective surface, and an angle α between the first reflective surface and the second reflective surface is 135°.

[0008] 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.

[0009] In some embodiments, the reflector assembly further includes an autocollimator mounted on the second slider, and the light axis emitted by the autocollimator can be irradiated to the first reflective surface through the transmission surface and return to ensure the parallelism between the first reflector and the second reflector.

[0010] In some embodiments, an adjustment mechanism is further included, wherein the adjustment mechanism is mounted on the first slider, the first reflector is mounted on the adjustment mechanism, and 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.

[0011] In some embodiments, the adjustment mechanism includes a base, an adjustment plate, an intermediate plate, a first adjustment nut, a second adjustment 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, 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 arranged between the other end of the intermediate plate and the base, the adjustment plate is arranged 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 arranged through the notch; at the same time, a pressure block is arranged in the notch, and the first adjusting nut is arranged through the pressure block and the intermediate plate.

[0012] In some embodiments, the multi-spectrum collimator is a multi-spectrum collimator.

[0013] In a second aspect, the present invention further provides a method for calibrating the consistency of multiple axes 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 comprises the following steps: Step S1, determining a reference optical axis, wherein the reference optical axis is an optical axis of any one of a plurality of optical axes of the special vehicle that coincides with a multi-spectral optical axis emitted by a multi-spectral 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 multi-spectral optical axis emitted by the multi-spectral collimator is reflected by the reflector assembly at different positions, and the multi-spectral optical axis is translated; Step S4, adjusting the remaining optical axes of the special vehicle to coincide with the multi-spectral optical axes at different positions respectively, thus completing the consistency calibration of the multi-axis lines.

[0014] Compared with the prior art, the present invention provides a special vehicle multi-axis consistency calibration device and calibration method, which can directly set up a reflector assembly, a movable assembly and a multi-spectral collimator on the front end of the special vehicle. The vehicle can be used after the optical axis position is aligned, and no large space is required. 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. Therefore, there is no need to make different target plates, and the present invention has strong versatility and simple operation. In addition, the present invention also has the advantage of high correction accuracy. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1It is an overall layout diagram of the multi-axis consistency calibration device for special vehicles according to the present invention; Figure 2 is a schematic structural diagram of the first reflector of the present invention; Figure 3 is a schematic structural diagram of the second reflector of the present invention; Figure 4 is a schematic structural diagram of the regulating mechanism of the present invention; Figure 5 is another structural schematic diagram of the regulating mechanism of the present invention; Figure 6 It is a flow chart of the multi-axis consistency calibration method for special vehicles described in the present invention.

[0015] The following are the descriptions of the reference numerals: 100. Multi-spectrum collimator; 200, movable component, 210, guide rail, 220, first slider, 230, second slider; 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; 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. Articulated seat, 490. Pressing block. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0017] 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, complicated operation and low precision, the present invention proposes a multi-axis consistency calibration device and a calibration method for special vehicles.

[0018] Figure 1 The general layout diagram of the multi-axis consistency calibration device for special vehicles of the present invention is as follows: Figure 1As 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 axis lines 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.

[0019] 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, that 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, and when the multi-spectral optical axis is at different positions, 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 respectively, and when all the remaining optical axes coincide with the corresponding translated multi-spectral optical axes respectively, the consistency calibration is completed. Compared with the prior art, the calibration device of the present invention can move the multi-spectral optical axis, and does not require a large site, and does not require the preparation of target plates of different sizes, so that the calibration process is simpler and has high precision.

[0020] It should be noted that the multispectral optical axis emitted by the multispectral collimator 100 is translated to different positions means that after one of the optical axis lines of the special vehicle is selected as a reference, the distance between each of the remaining optical axes and the reference optical axis line 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 line corresponding to the special vehicle is adjusted to coincide with the multispectral optical axis at that position, that is, the optical axis line is considered to be consistent with the reference optical axis line.

[0021] 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 driven by 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 respectively equal to the distance between each two optical axes of the special vehicle.

[0022] In one embodiment, the length of the guide rail 210 is greater than the distance between the two optical axes that are farthest apart in the special vehicle to meet the consistency calibration of all optical axes of the characteristic vehicle.

[0023] In one embodiment, if Figure 2 As shown, the first reflector 310 is formed with a first reflective surface 311 and a second reflective surface 312, and 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, 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°, and its accuracy is ±2″.

[0024] In one embodiment, 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 .

[0025] In one embodiment, the reflector assembly 300 also includes an autocollimator 330, which is installed on the second slider 230. The light axis emitted by the autocollimator 330 can be irradiated to 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.

[0026] 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.

[0027] 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 .

[0028] In one embodiment, if 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 arranged between the other end of the middle plate 430 and the base 410, the adjusting plate 420 is arranged on the upper surface of the middle plate 430, and one end of the adjusting plate 420 is rotatably connected with one end of the middle plate 430 through a second rotating shaft 470, a notch is formed at the other end of the adjusting plate 420, and the second adjusting nut 450 is arranged through the notch; at the same time, a pressing block 490 is arranged in the notch, and the first adjusting nut 440 is arranged through the pressing block 490 and the middle plate 430. The working principle of the above-mentioned adjustment mechanism 400 is: Rotating the first adjusting nut 440 downward can drive the pressing block 490 downward to move the middle plate 430 downward, and the other end of the middle plate 430 is rotatably connected to the base 410 via the first rotating shaft 460. Therefore, this end of the middle plate 430 can move up and down under the action of the first adjusting nut 440 to adjust the pitch attitude of the first reflector 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. Since the other end of the adjusting plate 420 is rotatably connected to the middle plate 430 via the second rotating shaft 470, the second adjusting nut 450 can drive the adjusting plate 420 to rotate horizontally on the middle plate 430 to adjust the left and right attitude of the first reflector 310 in the horizontal direction. The above two can ensure that the first reflector 310 and the second reflector 320 remain parallel.

[0029] In one embodiment, the light emitted by the multi-spectral collimator 100 is one of visible light, mid-infrared and far-infrared.

[0030] On the other hand, Figure 6 As 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 device for calibrating the consistency of multiple axes of a special vehicle provided by the present invention, and specifically includes 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 multi-spectral optical axis emitted by the multi-spectral collimator 100; 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; Specifically, the first slider 220 and the second slider 230 are slidably connected to the guide rail 210 respectively, 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, it is noted that the first reflective surface 311 and the transmission surface 322 remain parallel, and the second reflective surface 312 and the third reflective surface 321 remain parallel.

[0031] 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 adjusted in cooperation with the adjustment mechanism 400 .

[0032] Step S3, adjusting the position of the reflector assembly 300 so that the multi-spectral optical axis emitted by the multi-spectral collimator 100 is reflected by the reflector assembly 300 at different positions, and the multi-spectral optical axis is translated; Step S4, adjusting the remaining optical axes of the special vehicle to coincide with the multi-spectral optical axes at different positions respectively, thus completing the consistency calibration of the multi-axis lines.

[0033] The use process of a special vehicle multi-axis consistency calibration device and calibration method provided by the present invention is as follows: 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 the optical axis is considered to coincide 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.

[0034] Therefore, the present invention can realize in-situ correction. The equipment can be directly set up at 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 the products with two farther optical axis intervals, it can be used without changing the accuracy. In addition, the present invention adopts multi-spectral collimator and autocollimator monitoring, which can easily achieve parallel correction accuracy within 10″, which is higher than the target plate method.

[0035] The specific implementation of the present invention described above does not constitute a limitation on the protection scope 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 protection scope 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 optical 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 is mounted on the movable assembly. The reflector assembly can be displaced under the drive of the movable assembly so that the multi-spectral optical axis emitted by the multi-spectral parallel light tube is translated to different positions, and is used to adjust the remaining optical axis lines of the special vehicle to coincide with the multi-spectral optical axes at different positions.

2. The multi-axis consistency calibration device for special vehicles according to claim 1, characterized in that: The movable assembly comprises 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 reflector assembly includes a first reflector and a second reflector, which are respectively mounted on the first slider and the second slider, and 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: The first reflector is formed with a first reflective surface and a second reflective surface, and an angle α between the first reflective surface and the second reflective surface is 135°.

5. The multi-axis consistency calibration device for special vehicles according to claim 4, characterized in that: The second reflector is formed with a third reflective surface and a transmissive surface, the included 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.

6. The multi-axis consistency calibration device for special vehicles according to claim 5, characterized in that: The reflector assembly also includes an autocollimator, which is installed on the second slider. The light axis emitted by the autocollimator can be irradiated to the first reflective surface through the transmission surface and return to ensure the parallelism between the first reflector and the second reflector.

7. The multi-axis consistency calibration device for special vehicles according to claim 6, characterized in that: It also includes an adjustment mechanism, which is installed on the first slider, and 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.

8. The multi-axis consistency calibration device for special vehicles according to claim 7, 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, a spring is arranged between the other end of the intermediate plate and the base, the adjusting plate is arranged 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 arranged in the notch, and the first adjusting nut is arranged through the pressure block and the intermediate plate.

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

10. A method for calibrating the consistency of multiple axes of a special vehicle, implemented based on the device for calibrating the consistency of multiple axes of a special vehicle according to any one of claims 1 to 9, characterized in that: The calibration method comprises the following steps: Step S1, determining a reference optical axis, wherein the reference optical axis is an optical axis of any one of a plurality of optical axes of the special vehicle that coincides with a multi-spectral optical axis emitted by a multi-spectral 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 multi-spectral optical axis emitted by the multi-spectral collimator is reflected by the reflector assembly at different positions, and the multi-spectral optical axis is translated; Step S4, adjusting the remaining optical axes of the special vehicle to coincide with the multi-spectral optical axes at different positions respectively, thus completing the consistency calibration of the multi-axis lines.

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