Fine-tuning reflector frame assembly, laser directivity adjustment device and adjustment method

Abstract

The present invention provides a fine-tuning reflector frame assembly, a laser directivity adjustment device and an adjustment method. The fine-tuning reflector frame assembly comprises: a frame support, comprising a frame holder and a supporting portion; a frame, which is detachably connected to the frame support, and comprises a lens mounting portion and a clamping portion; wherein a first positioning pin is provided on the supporting portion, and a first pin hole is provided on the clamping portion, and the first positioning pin is connected with the first pin hole of the clamping portion in a clearance fit.

Description

Technical Field

[0001] The present disclosure relates to the field of laser technology, and in particular to a fine-tuning reflector frame assembly, a laser directivity adjustment device and an adjustment method. Background Art

[0002] The traditional laser pointing adjustment method uses two two-dimensional fine-tuning mirror frames to control the directivity by turning the laser twice 90°, wherein the first fine-tuning mirror frame is used to adjust the center height of the laser to a suitable position, and the second fine-tuning mirror frame is used to adjust the center height to be parallel to the bottom surface. The existing laser pointing adjustment scheme has the problem of slow deformation, which leads to poor laser directivity. Even if the accuracy of the two-dimensional fine-tuning mirror frame is improved and the effect of backlash is eliminated, the deformation problem cannot be completely avoided. In addition, the existing laser pointing adjustment device is inconvenient to disassemble and replace the lens, the bottom surface of the mirror frame support is difficult to process, and the processing accuracy and surface shape and position tolerance further affect the laser pointing accuracy. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the above problems, the main purpose of the present disclosure is to provide a fine-tuning reflector frame assembly, a laser directivity adjustment device and an adjustment method, so as to solve at least one of the above problems.

[0005] (II) Technical solution

[0006] According to one aspect of the present disclosure, there is provided a fine-tuning reflector frame assembly, comprising:

[0007] A mirror frame support, comprising a mirror frame support and a supporting portion;

[0008] A glasses frame, detachably connected to the glasses frame support, comprising a lens mounting portion and a clamping portion;

[0009] Wherein, the supporting portion is provided with a first positioning pin, the clamping portion is provided with a first pin hole, and the first positioning pin is connected with the first pin hole of the clamping portion in a clearance fit.

[0010] Furthermore, the clamping portion forms an accommodating gap, the supporting portion is arranged in the accommodating gap, and the width of the accommodating gap is greater than the width of the supporting portion.

[0011] Furthermore, the fine-tuning reflector frame assembly also includes an angle adjustment screw, and the clamping portion is also provided with a first threaded hole that matches the angle adjustment screw.

[0012] Furthermore, the frame support is also provided with an adjustment handle, the adjustment handle is detachably connected to the frame support, and the height of the adjustment handle is greater than the height of the frame.

[0013] According to another aspect of the present disclosure, there is provided a laser directivity adjustment device, comprising the fine-tuning reflector frame assembly, and also comprising a mounting base plate;

[0014] Wherein, the frame support is provided with a second pin hole and a plurality of mounting through holes;

[0015] The mounting base plate is provided with a second positioning pin and a plurality of second threaded holes; the second positioning pin is connected with the second pin hole by clearance fit, and the second threaded hole is connected with the mounting through hole by screw fit; the diameter of the second threaded hole is smaller than the diameter of the mounting through hole.

[0016] Furthermore, a protrusion is provided on a surface of the frame support away from the supporting portion, and the protrusion is located around the mounting through hole and in contact with the mounting base plate.

[0017] Furthermore, the laser directivity adjustment device comprises two of the fine-tuning reflector frame assemblies, namely a first fine-tuning reflector frame assembly and a second fine-tuning reflector frame assembly, and also comprises a CCD and a controller; wherein

[0018] The CCD is used to detect the actual position of the spot of the laser beam reflected by the mirrors on the first fine-tuning reflector frame assembly and the second fine-tuning reflector frame assembly, and the controller is used to determine adjustment information based on the actual position of the spot of the laser beam on the CCD and the target position of the spot of the laser beam, and adjust the first fine-tuning reflector frame assembly and / or the second fine-tuning reflector frame assembly according to the adjustment information, thereby achieving laser directivity adjustment.

[0019] Furthermore, the first fine-tuning reflector frame assembly and the second fine-tuning reflector frame assembly respectively include motors, and the controller is also used to control the operation of the motors according to the adjustment information to change the position of the reflectors of the first fine-tuning reflector frame assembly and / or the second fine-tuning reflector frame assembly, thereby achieving laser directivity adjustment.

[0020] Furthermore, the mirror frame support, the mirror frame and the mounting base plate are made of materials with the same expansion coefficient.

[0021] According to another aspect of the present disclosure, a laser directivity adjustment method is provided, characterized by comprising:

[0022] Determine adjustment information of the fine-tuning reflector frame assembly according to the actual position of the laser beam spot on the CCD and the target position of the laser beam spot;

[0023] The position of the fine-tuning reflector frame assembly is changed according to the adjustment information, thereby achieving laser directivity adjustment.

[0024] Further, changing the position of the fine-tuning reflector frame assembly according to the adjustment information, thereby achieving laser directivity adjustment, includes:

[0025] According to the adjustment information, the position of the reflector of the fine-tuning reflector frame assembly is changed by using an adjustment handle and / or an angle adjustment screw, thereby achieving laser directivity adjustment; and / or

[0026] The position of the reflector of the fine-tuning reflector frame assembly is changed by using a motor according to the adjustment information, thereby achieving laser directivity adjustment.

[0027] (III) Beneficial effects

[0028] It can be seen from the above technical solutions that the fine-tuning reflector frame assembly, laser directivity adjustment device and adjustment method disclosed in the present invention have at least one of the following beneficial effects:

[0029] (1) The frame and frame support of the present invention are detachably connected, which facilitates the removal and replacement of lenses, improves the efficiency of lens replacement, and simplifies the structure.

[0030] (2) The frame of the present invention is provided with a pin hole for adjustment, and the frame can be tilted up, down, left, and right by an angle adjustment screw, thereby improving the accuracy, operability, and convenience of adjustment.

[0031] (3) The mirror frame support disclosed in the present invention is provided with an adjustment pin hole, and the position of the mirror frame support on the mounting base plate can be conveniently adjusted using an adjustment handle, thereby adjusting the left and right swing angles of the laser beam.

[0032] (4) The disclosed mirror frame support has a protrusion on one side away from the supporting portion, and the protrusion is located around the mounting through hole of the mirror frame support and contacts the mounting base plate, thereby reducing the contact area between the bottom surface of the mirror frame and the mounting base plate, and reducing the influence of the shape and position tolerance of the bottom surface of the mirror frame on the laser pointing accuracy.

[0033] (5) The mirror frame support, mirror frame and mounting base plate disclosed in the present invention are made of materials with the same expansion coefficient, thereby avoiding the influence of thermal expansion and contraction on the adjustment accuracy, thereby improving the accuracy and reliability.

[0034] (6) The present disclosure adopts an electrically adjustable frame, thereby improving operability and adjustment stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0036] Figure 1It is a stereoscopic diagram of the laser directivity adjustment device according to the first embodiment of the present disclosure.

[0037] Figure 2 It is an exploded view of the laser directivity adjustment device according to the first embodiment of the present disclosure.

[0038] Figure 3 The present invention is a stereoscopic diagram of the fine-tuning reflector frame assembly.

[0039] Figure 4 An exploded view of the fine-tuning reflector frame assembly disclosed herein.

[0040] Figure 5 It is a stereoscopic diagram of a laser directivity adjustment device according to the second embodiment of the present disclosure.

[0041] <Description of Reference Numerals>

[0042] 1, 2-fine-tuning reflector frame assembly, 3-mounting base plate, 4-CCD, 5-laser beam;

[0043] 11-mirror frame support, 12-mirror frame, 13-angle adjustment screw, 14-adjustment handle, 15-spring, 16-motor, 17-motor bracket;

[0044] 111-mirror frame support, 112-supporting part, 121-lens mounting part, 122-clamping part, 1211-reflector, 1212-lens pressing ring, 1111-pin hole, 1112-mounting through hole, 1121-locating pin, 1221-pin hole. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0046] The laser directivity adjustment method disclosed in the present invention can detect the actual position of the laser beam spot in real time, and quantitatively determine the adjustment information according to the actual position and the target position, which is conducive to accurately realizing the laser directivity adjustment.

[0047] The following is combined with Figure 1-5 The embodiments of the present disclosure are described in detail.

[0048] In the first embodiment, if Figure 1-4 As shown, the laser pointing adjustment device disclosed in the present invention comprises a fine-tuning mirror frame assembly 1 , a fine-tuning mirror frame assembly 2 and a mounting base plate 3 , wherein the fine-tuning mirror frame assembly 1 and the fine-tuning mirror frame assembly 2 are arranged on the mounting base plate 3 .

[0049] The fine-tuning reflector frame assembly 1 includes a frame support 11 and a frame 12. The frame support 11 includes a frame holder 111 and a support portion 112, and the frame holder 111 and the support portion 112 are integrally formed. The frame 12 includes a lens mounting portion 121 and a clamping portion 122 for connecting with the support portion 112 of the frame support 11, and the support portion 112 is fixed on the clamping portion 122.

[0050] The lens mounting portion 121 has a lens hole, and the reflector 1211 is placed in the lens hole of the lens mounting portion 121 in a hole-shaft matching manner. Furthermore, the reflector 1211 can be fixed in the lens hole by a lens pressing ring 1212 using a threaded fixing method. When the laser beam 5 is incident on the reflector 1211, the reflector 1211 can turn the direction of the laser beam 5 once.

[0051] The frame support 111 of the frame support 11 is provided with a pin hole 1111 and at least two mounting through holes 1112. The mounting base plate 3 is provided with a positioning pin, which passes through the pin hole 1111 of the frame support 11, and the pin hole 1111 is loosely matched with the positioning pin. The mounting base plate 3 is also provided with threaded holes corresponding to the number of mounting through holes 1112 of the frame support 11, and the diameter of the mounting through holes 1112 of the frame support 11 is larger than the diameter of the threaded holes. Therefore, before the frame support 11 is fixedly connected to the mounting base plate 3, the horizontal position can be finely adjusted.

[0052] The mirror frame support 11 is also provided with an adjustment handle 14. When the adjustment handle 14 is twisted, the mirror frame support 11 can rotate around the positioning pin, thereby achieving fine adjustment of the horizontal position. After the mirror frame support 11 is adjusted to a suitable position, the mirror frame support can be locked on the mounting plate 3 with a screw. The left and right swing angles of the laser beam incident on the reflector can be adjusted by the above-mentioned adjustment mechanism, thereby correcting the directivity. The laser pointing adjustment device has no variable dimension after final curing, thereby improving the stability and reliability of laser pointing.

[0053] Preferably, the height of the adjustment handle 14 is higher than the height of the mirror frame 12 to overcome the defects of narrow space and difficulty in grasping the mirror frame support, thereby facilitating fine-tuning of the mirror frame support. The adjustment handle 14 can be fixedly or detachably arranged on the mirror frame support 11, and the present disclosure does not limit the shape of the adjustment handle. In addition, in order to prevent the adjustment handle 14 from affecting the optical path, a threaded hole or a clamping component can be arranged on the mirror frame support 11, and a corresponding screw or clamping component is arranged on the adjustment handle 14. When the position of the mirror frame support 11 needs to be adjusted, the adjustment handle 14 is attached to the mirror frame support 11, and the adjustment handle 14 is removed after the position adjustment of the mirror frame support 11 is completed. The adjustment handle can make the mirror frame and the mirror frame support rotate together around the positioning pin to change the position of the reflector relative to the mounting plate, thereby adjusting the laser pointing.

[0054] The other side of the frame support 111 away from the support part 112 (the side of the frame support opposite to the support part) is provided with a 0.3-0.8MM (0.5MM is the best) high protrusion around the mounting through hole 1112. The protrusion is in contact with the mounting base plate, thereby reducing the contact surface between the bottom surface of the frame support and the mounting base plate when the frame support is fixedly connected to the mounting base plate, reducing the influence of the shape and position tolerance of the bottom surface of the frame support on the laser pointing accuracy, and improving the adjustment accuracy.

[0055] A positioning pin 1121 is provided on the support portion 112 of the frame support 11. The positioning pin 1121 can be integrally formed with the support portion 112, or a pin hole is first provided on the support portion 112, and then the positioning pin is inserted therein with interference fit. A pin hole 1221 is provided on the clamping portion 122 of the frame 12. The positioning pin 1121 is inserted into the pin hole 1221. The positioning pin 1121 and the pin hole 1221 are loosely matched. The frame 12 can slightly swing left and right with the positioning pin 1121 as the support axis to adjust the angle of the frame 12. The clamping portion 122 of the frame 12 has a gap with a width greater than that of the support portion 112 relative to the support portion 112 of the frame support 11. The support portion 112 is provided in the gap, and the frame 12 is finely adjusted at a small angle with the positioning pin 1121 as the center axis through an adjustable elastic mechanism (provided at the upper or lower part of the clamping portion 122). The adjustable elastic mechanism is, for example, a top-thread spring structure, and after the adjustment is completed, the clamping portion 122 of the frame 12 is fixedly connected to the supporting portion 112 of the frame support 11. The uppermost and lowermost holes of the pin hole 1221 of the clamping portion 122 and the corresponding uppermost and lowermost holes of the clamping portion 122 in FIG. 5 are holes used to fix the clamping portion 122 to the supporting portion 112.

[0056] Furthermore, the adjustable elastic mechanism of the fine-tuning reflector frame assembly also includes an angle adjustment screw 13. When the angle adjustment screw 13 is rotated, one end of the angle adjustment screw 13 presses against the frame support 11, and the frame 12 rotates around the pin shaft (the positioning pin 1121 is the central axis); at the same time, the spring 15 is compressed to complete the left and right swing angle adjustment, wherein the spring acts as a balancing force. The spring is placed in the frame through a hole-shaft matching method (the clamping part 122 is formed in a receiving gap, between the clamping part and the support part). The angle adjustment screw 13 is fixed to the frame 12 through a threaded connection method (the angle adjustment screw 13 presses against the first side of the support part 112 along the first direction, the spring presses against the second side of the support part 122 along the first direction, and the positioning pin 1121 extends from the third side of the support part along the second direction and extends into the pin hole 1221, the first direction is one of the length direction and the width direction of the support part, and the second direction is the other of the length direction and the width direction of the support part). The mirror frame is rotated around the positioning pin 1121 by an angle adjustment screw to change the angle of the mirror frame 12 relative to the mirror frame support 11, thereby achieving laser pointing adjustment.

[0057] The structure of the fine-tuning reflector frame assembly 2 is the same as that of the fine-tuning reflector frame assembly 1 ; and it is arranged in the positioning pins on the mounting base plate 3 in the same manner, and is fixedly connected to the mounting base plate 3 .

[0058] The reflector of the fine-tuning reflector frame assembly 2 receives the deflected laser beam from the fine-tuning reflector frame assembly 1, and performs a second deflection on the laser beam, and finally deflects the laser beam to the target position (theoretical position).

[0059] Because the reflectors of the two fine-tuning reflector frame assemblies are arranged roughly opposite to each other, the installation directions of the fine-tuning reflector frame assembly 1 and the fine-tuning reflector frame assembly 2 relative to the base plate 3 are opposite to each other in the vertical direction.

[0060] Preferably, the mirror frame support 11, the mirror frame 12 and the mounting base plate 3 are made of materials with the same expansion coefficient, thereby avoiding the influence of thermal expansion and contraction on the adjustment accuracy.

[0061] The adjustment process of the laser directivity adjustment device of this embodiment is as follows (fine-tuning the reflector frame assembly 1 to adjust the light height, and fine-tuning the reflector frame assembly 2 to adjust the angle):

[0062] First, place the fine-tuning reflector frame assembly 1 on the corresponding position of the mounting base plate 3, so that the input laser beam (the beam generated by the laser, which is not adjustable) is deflected at a certain angle (for example, 90°), and a scientific CCD 4 (the scientific CCD can directly read the coordinate value) is placed at the theoretical laser deflection position of the second fine-tuning reflector frame assembly 2, and the fine-tuning reflector frame assembly 1 is adjusted so that the incident laser beam is reflected by the reflector of the fine-tuning reflector frame assembly 1 and hits the theoretical height position displayed on the scientific CCD, and the correction of the light height is completed, and the first frame is fastened to the mounting base plate 3;

[0063] Then place the fine-tuning reflector frame assembly 2 on the corresponding position of the mounting base plate 3, fold the laser beam after being folded by the fine-tuning reflector frame assembly 1 again by a certain angle (for example, 90°), place the scientific CCD at a theoretical height as far as possible (for example, beyond 100MM, the farther the higher the accuracy) in the reflected light path, and fix the scientific CCD on the mounting base plate 3 by screw fixing; adjust the fine-tuning reflector frame assembly 2 so that the laser beam hits the theoretical coordinate value displayed by the scientific CCD, and fasten the fine-tuning reflector frame assembly 2 to the mounting base plate 3;

[0064] The laser beam pointing direction is adjusted.

[0065] In the second embodiment, based on the previous embodiment, Figure 5 As shown, the fine-tuning reflector frame assembly 2 and the fine-tuning reflector frame assembly 1 of the laser pointing device may include a motor 16 and a motor bracket 17, which are used to drive the displacement of the reflector to change the deflection angle of the laser beam, thereby realizing the electric adjustment of the laser pointing device. Accordingly, the electric adjustment process of the laser pointing device is as follows:

[0066] The scientific CCD records the coordinates and the mirror frame is electrically adjusted. The mirror frame is designed to be electrically controlled. The theoretical coordinates recorded by the scientific CCD are used as the base point, and the recorded coordinates are transmitted to the controller. The controller compares the theoretical coordinate value with the actual laser beam spot position, calculates the rotation angle and outputs a signal. The signal is transmitted to the motor, and the motor drives the two fine-tuning reflector frame assemblies to adjust the left and right and up and down tilt angles, so that the laser hits the theoretical coordinate value of the scientific CCD, thereby completing the direction adjustment of the laser beam.

[0067] So far, the present disclosure has been described in detail in conjunction with the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the present disclosure.

[0068] It should be noted that the implementation methods not shown or described in the drawings or the text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0069] Of course, according to actual needs, the present disclosure may also include other parts, which are irrelevant to the innovation of the present disclosure and will not be described here.

[0070] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various disclosed aspects, in the above description of the exemplary embodiments of the present disclosure, the various features of the present disclosure are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following intention: the claimed disclosure requires more features than the features explicitly recited in each claim. More specifically, as reflected in the claims below, the disclosed aspects are less than all the features of the single embodiment disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present disclosure.

[0071] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this manner may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0072] Furthermore, the ordinal numbers used in the specification and claims, such as "first", "second", "third", etc., to modify the corresponding elements, do not themselves mean or represent any ordinal number of the element, nor do they represent the order of one element and another element, or the order of manufacturing methods. The use of these ordinal numbers is only used to clearly distinguish a component with a certain name from another component with the same name.

[0073] In addition, in the drawings or descriptions, similar or identical parts use the same figure numbers. The technical features in the various embodiments exemplified in the specification can be freely combined to form new solutions without conflict. In addition, each claim can be used as an embodiment alone or the technical features in each claim can be combined as a new embodiment, and in the drawings, the shape or thickness of the embodiment can be expanded and simplified or conveniently indicated. Furthermore, the elements or implementations not shown or described in the drawings are in a form known to a person of ordinary skill in the art. In addition, although demonstrations of parameters containing specific values ​​may be provided herein, it should be understood that the parameters do not need to be exactly equal to the corresponding values, but can be approximated to the corresponding values ​​within an acceptable error tolerance or design constraint.

[0074] Unless there are technical obstacles or contradictions, the above-mentioned various embodiments of the present disclosure can be freely combined to form additional embodiments, and these additional embodiments are all within the protection scope of the present disclosure.

[0075] Although the present disclosure is described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred embodiments of the present disclosure and should not be construed as limiting the present disclosure. The dimensional ratios in the accompanying drawings are merely illustrative and should not be construed as limiting the present disclosure.

[0076] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

[0077] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A fine-tuning reflector frame assembly, characterized in that: include: A mirror frame support (11), comprising a mirror frame support (111) and a support portion (112); A glasses frame (12) detachably connected to the glasses frame support, comprising a lens mounting portion (121) and a clamping portion (122); The support portion (112) is provided with a first positioning pin (1121), the clamping portion (122) is provided with a first pin hole (1221), and the first positioning pin (1121) is connected with the first pin hole (1221) of the clamping portion by clearance fit; the clamping portion (122) forms an accommodating gap, the support portion (112) is arranged in the accommodating gap, and the width of the accommodating gap is greater than the width of the support portion (112); An adjustable elastic mechanism is arranged between the clamping portion (122) and the supporting portion (112); An angle adjustment screw (13), wherein the clamping portion (122) is further provided with a first threaded hole matching the angle adjustment screw, and the angle adjustment screw (13) passes through the first threaded hole and abuts against the support portion (122).

2. The fine-tuning reflector frame assembly according to claim 1, characterized in that: An adjustment handle (14) is also provided on the mirror frame support (11), the adjustment handle (14) is detachably connected to the mirror frame support (11), and the height of the adjustment handle (14) is greater than the height of the mirror frame (12).

3. A laser directivity adjustment device, characterized in that: It comprises the fine-tuning reflector frame assembly according to claim 1 or 2, and also comprises a mounting base plate (3); Wherein, the mirror frame support (111) is provided with a second pin hole (1111) and a plurality of mounting through holes (1112); The mounting base plate (3) is provided with a second positioning pin and a plurality of second threaded holes; the second positioning pin is connected to the second pin hole (1111) by clearance fit, and the second threaded hole is connected to the mounting through hole (1112) by screw fit; the diameter of the second threaded hole is smaller than the diameter of the mounting through hole (1112).

4. The device according to claim 3, characterized in that A protrusion is provided on a surface of the mirror frame support (111) away from the support portion (112); the protrusion is located around the mounting through hole (1112) and is in contact with the mounting base plate (3).

5. The device according to claim 3, characterized in that The laser directivity adjustment device comprises two said fine-tuning reflector frame assemblies, namely a first fine-tuning reflector frame assembly and a second fine-tuning reflector frame assembly, and also comprises a CCD and a controller; wherein The CCD is used to detect the actual position of the spot of the laser beam reflected by the mirrors on the first fine-tuning reflector frame assembly and the second fine-tuning reflector frame assembly, and the controller is used to determine adjustment information based on the actual position of the spot of the laser beam on the CCD and the target position of the spot of the laser beam, and adjust the first fine-tuning reflector frame assembly and / or the second fine-tuning reflector frame assembly according to the adjustment information, thereby achieving laser directivity adjustment.

6. The device according to claim 5, characterized in that The first fine-tuning reflector frame assembly and the second fine-tuning reflector frame assembly respectively include motors, and the controller is also used to control the operation of the motors according to the adjustment information to change the position of the reflectors of the first fine-tuning reflector frame assembly and / or the second fine-tuning reflector frame assembly, thereby achieving laser directivity adjustment.

7. The device according to claim 3, characterized in that The mirror frame support, the mirror frame and the mounting base plate are made of materials with the same expansion coefficient.

8. A method for adjusting laser directivity, characterized in that: include: Determining adjustment information of the fine-tuning reflector frame assembly in claim 1 or 2 according to the actual position of the laser beam spot on the CCD and the target position of the laser beam spot; The position of the fine-tuning reflector frame assembly is changed according to the adjustment information, thereby achieving laser directivity adjustment.

9. The method according to claim 8, characterized in that Changing the position of the fine-tuning reflector frame assembly according to the adjustment information, thereby achieving laser directivity adjustment, includes: According to the adjustment information, the position of the reflector of the fine-tuning reflector frame assembly is changed by using an adjustment handle and / or an angle adjustment screw, thereby achieving laser directivity adjustment; and / or The position of the reflector of the fine-tuning reflector frame assembly is changed by using a motor according to the adjustment information, thereby achieving laser directivity adjustment.

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