Batch debugging device suitable for energy type laser transmitters

Abstract

The invention discloses a batch debugging device suitable for energy type laser transmitters, which is characterized in that after a reference relationship is established between a mounting hole of a debugging bracket and the ground level, reference conversion is carried out through each component of the device, so that a reference is established between the mounting hole of the transmitter and a target wall surface; an emitter is installed on an installation hole of a debugging support through a conical surface of a fixing screw according to the self-centering principle, the installation hole of the debugging support is parallel to the ground, and the installation hole of the emitter (6) is parallel to the ground through reference conversion, so that a reference is established with a target wall surface; and finally, a wave mirror assembly on the emitter is rotated, so that an emitted light spot coincides with or is parallel to the reference of the wall surface until the use requirement is met. According to the invention, the debugging precision and debugging efficiency of laser spots of the emitter are effectively improved, the problem that the installation direction of the wave mirror is not accurate is solved, meanwhile, enough debugging space is provided for subsequent general assembly joint debugging, and the device is simple to operate, high in feasibility, easy to realize in engineering and suitable for batch production requirements.

Description

Technical Field

[0001] The invention belongs to the field of mechanical design and relates to a batch debugging device suitable for energy-type laser transmitters. The device can effectively improve the debugging accuracy and debugging efficiency of the laser spot of the transmitter. Background Art

[0002] Laser has the advantages of strong directionality, high monochromaticity, high coherence, and high brightness, so it is widely used in energy-type optical systems. Energy-type laser optical systems are a design form that uses laser beams to detect targets, which emerged with the development of laser technology.

[0003] In order to improve the positioning accuracy of the energy-type laser optical system, in the overall design, an 8-branch fan-shaped field of view detection scheme is often used, with 8 laser emission fields of view (transmitters) and 8 laser receiving fields of view (receivers), and the transmitting and receiving fields of view are parallel and one-to-one corresponding. 8 groups of laser transceiver modules are evenly arranged and installed in a circular direction. The field of view angle θ of the transmitting optical lens in the transmitter must be greater than 45°. The 8-way transmitter can detect the 360° target field of view to achieve full coverage of the field of view. When the laser device moves forward and rotates, it can achieve accurate detection without blind spots and hit the target.

[0004] Energy-type laser emitters generally include an emitting optical lens and a laser. The assembly consistency of the emitting optical lens and the debugging accuracy of the laser are crucial. It is necessary to design a batch debugging device suitable for energy-type laser emitters. This device simulates the overall structural positioning mode, effectively and accurately positions the emitter, ensures the accuracy of laser focusing and light spot adjustment, ensures the reliability and consistency of the product, and greatly improves the debugging efficiency to meet the batch production mode. Summary of the invention

[0005] (I) Purpose of the invention

[0006] The purpose of the present invention is to provide a device suitable for batch debugging of a certain type of energy-type laser transmitter, so as to achieve the requirement that the ripple direction of the wave mirror is parallel to the direction of the laser emission spot. The core design of the device is to solve the problem of high-precision and high-efficiency batch spot debugging of the transmitter.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a batch debugging device suitable for energy-type laser transmitters, the transmitter 13 comprises: a wave mirror assembly 1, a transmitting lens assembly 2, a transmitting optical lens 3 and a transmitting circuit board 4 containing a laser, the wave mirror assembly 1 and the transmitting lens assembly 2 are assembled to form the transmitting optical lens 3, and the transmitting optical lens 3 and the transmitting circuit board 4 containing the laser constitute the transmitter; the batch debugging device comprises a fixed base plate 11, a rotating angular displacement stage 10, an adjustable base 9, a debugging bracket 8, a level 7, a leveling block 6 and a debugging rod 5, a U-shaped mounting hole is provided on the upper end of the debugging bracket 8, the adjustable base 9 is fixed on the rotating angular displacement stage 10 by 4 countersunk screws, and the rotating angular displacement stage 10 is fixed by 4 The countersunk screws are fixed on the fixed base plate 11; the debugging bracket 8 is installed on the adjustable base 9, and the two debugging rods 5 are vertically installed in the corresponding threaded holes opened on both sides of the U-shaped mounting hole on the debugging bracket 8, and the leveling block 6 is placed on the debugging rod 5. The level 7 is placed on the leveling block 6, and the angle of the adjustable base 9 is adjusted by rotating the adjustment knob of the angular displacement table 10 so that the mounting hole of the debugging bracket 8 establishes a reference relationship with the ground level; during batch debugging, fixing screws 12 are installed in the threaded holes on both sides of the U-shaped mounting hole, one end of the transmitter 13 is arranged in the U-shaped mounting hole, and the other end is clamped between the two fixing screws 12, and the transmitter 13 is installed on the mounting hole of the debugging bracket 8 through the conical surface of the fixing screw 12 using the self-centering principle.

[0009] The pitch adjustment range of the rotary angular displacement stage 10 is ±10°, and the accuracy is 5′.

[0010] The laser emission spot is subjected to the focusing and shaping effect of the emission lens component 2 to form an optimal focal plane; and then subjected to the beam expansion effect of the wave mirror component 1 to form a strip-shaped emission spot with an emission angle of θ.

[0011] Among them, the mounting hole of the debugging bracket 8 is parallel to the earth. Through the conversion of the reference, the mounting hole in the center of the transmitter 13 is parallel to the earth, and a reference is established with the target wall. The wave mirror assembly 1 on the transmitter 13 is rotated to make the emission spot coincide with or parallel to the wall reference until the use requirements are met.

[0012] Among them, the vertical distance between the transmitter 13 and the target wall is H, the length of the laser strip spot projected onto the target wall is L, and the emission angle θ of the transmitter is 2*arctanL / 2H; when H is fixed and the laser strip spot is adjusted to completely coincide with or be parallel to the target wall reference line, the length L of the laser strip spot is measured, and the actual value of θ is calculated by θ=2*arctanL / 2H to determine whether the emission angle θ of the laser spot meets the design requirements.

[0013] Among them, the laser spot signal emission angle θ in the transmitter 13 is greater than 45°, achieving full coverage of 360° field of view.

[0014] During debugging, a level meter 7 is used to establish a reference line on the target wall with the earth level as the reference, and a calibrated red horizontal reference line is set on the wall. After the mounting hole of the debugging bracket 8 establishes a reference relationship with the earth level, the debugging bracket 8 does not move, the debugging rod 5 is removed, and the transmitter 13 is installed.

[0015] Among them, when assembling the wave mirror component 1, first apply a sufficient amount of adhesive on the outer circle of the wave mirror component 1, install the wave mirror component 1 into the emitting optical lens 3, and rotate the wave mirror component 1 with the central axis of the emitting optical lens 3 as the axis. The direction of the laser 13 emission spot changes, and observe the direction of the laser emission spot on the target wall. When the direction of the laser emission spot coincides with or is parallel to the direction of the wall reference line, stop rotating the wave mirror component 1, fix the position of the wave mirror component 1, and mark the position with a marker.

[0016] (III) Beneficial effects

[0017] The batch debugging device suitable for energy-type laser emitters provided by the above technical solution can accurately position the emitter and the overall structure and unify the debugging reference, thereby ensuring the debugging accuracy and debugging efficiency of the laser emission spot, solving the problem of difficulty in achieving the accuracy requirements of the wave mirror installation direction in traditional installation and adjustment methods, greatly improving the installation and calibration efficiency of the emitter, and being suitable for mass production mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the transmitter schematic diagram;

[0019] Figure 2 Establish a baseline schematic for debugging the device;

[0020] Figure 3 Debug transmitter application diagram for debugging device. DETAILED DESCRIPTION

[0021] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0022] Figure 1In order to be applicable to the principle diagram of the energy-type laser transmitter, the various components of the transmitter and their connection methods are shown in detail. The energy-type laser transmitter includes a wave mirror component 1, a transmitting lens component 2, a transmitting optical lens 3 and a transmitting circuit board 4 containing a laser. The wave mirror component 1 and the transmitting lens component 2 are assembled to form the transmitting optical lens 3, and the transmitting optical lens 3 and the transmitting circuit board 4 containing a laser constitute the transmitter. The working principle of the energy-type laser transmitter is as follows: first, the transmitting lens component 2 is focused, and the laser emission spot is formed through the focusing and shaping effect of the transmitting lens component 2 to form the best focal plane, that is, the sharpest and clearest spot; and then through the beam expansion effect of the wave mirror component 1, a strip-shaped emission spot with an emission angle of θ is formed.

[0023] Figure 2 The schematic diagram for establishing a reference for the debugging device shows in detail how to establish a reference relationship between the mounting hole of the debugging bracket 8 and the ground level, and establish a reference line on the target wall surface using the ground level as a reference through a leveling instrument.

[0024] The debugging device includes: a fixed base plate 11, a rotating angular displacement platform 10, an adjustable base 9, a debugging bracket 8, a spirit level 7, a leveling block 6 and a debugging rod 5. A U-shaped mounting hole is provided at the upper end of the debugging bracket 8. The adjustable base 9 is fixed to the rotating angular displacement platform 10 by four countersunk screws. The pitch adjustment range of the rotating angular displacement platform 10 is ±10° and the accuracy is 5′. The rotating angular displacement platform 10 is fixed to the fixed base plate 11 by four countersunk screws. The debugging bracket 8 is installed on the adjustable base 9. Two debugging rods 5 are vertically installed in corresponding threaded holes provided on both sides of the U-shaped mounting hole on the debugging bracket 8. The leveling block 6 is placed on the debugging rod 5. The spirit level 7 is placed on the leveling block 6. The angle of the adjustable base 9 is adjusted by the adjusting knob of the rotating angular displacement platform 10 so that a reference relationship is established between the mounting hole of the debugging bracket 8 and the ground level.

[0025] Figure 3 The application diagram of debugging the transmitter of the debugging device shows in detail that after the mounting hole of the debugging bracket 8 is horizontally established with the ground, the benchmark is converted through the various components of the device, so that the mounting hole of the transmitter 13 and the front target wall are established with a benchmark to ensure the installation accuracy and stability of the transmitter 13. Fixing screws 12 are installed in the threaded holes on both sides of the U-shaped mounting hole. One end of the transmitter 13 is arranged in the U-shaped mounting hole, and the other end is clamped between the two fixing screws 12. The transmitter 13 is installed on the mounting hole of the debugging bracket 8 through the conical surface of the fixing screw 12 using the self-centering principle. Because the mounting hole of the debugging bracket 8 is parallel to the ground, the benchmark conversion can ensure that the mounting hole in the center of the transmitter 13 is parallel to the ground, thereby establishing a benchmark with the target wall. Finally, the wave mirror assembly on the transmitter 13 is rotated to make the emission spot coincide with or parallel to the wall benchmark until the use requirements are met.

[0026] Debugging principle of the transmitter: The vertical distance between the transmitter and the target wall is H, the length of the laser stripe spot projected onto the target wall is L, and the emission angle of the transmitter θ=2*arctan(L / 2H). When H is fixed and the laser stripe spot is adjusted to completely coincide with or be parallel to the target wall reference line, measure the length L of the laser stripe spot, and calculate the actual value of θ through θ=2*arctan(L / 2H), so as to determine whether the emission angle θ of the laser spot meets the design requirements. Using the 8-branch fan-shaped field of view detection scheme, the emission angle θ of the laser spot signal in the transmitter should be greater than 45°, and a full coverage of the 360° field of view can be achieved. If the emission angle θ is greater than or equal to 45°, then continue to assemble and fix the wave mirror assembly. If the emission angle θ is less than 45°, stop assembling and troubleshoot to find the cause.

[0027] During debugging, the transmitter is installed on the mounting hole of the debugging bracket by using the conical surface of the fixing screw using the self-centering principle. Since the mounting hole of the debugging bracket is parallel to the earth, it can ensure that the mounting hole of the transmitter is parallel to the earth, and establish a reference relationship between the mounting hole of the transmitter and the target wall. Since the debugging reference is unified and the transmitter is effectively and accurately positioned, during the debugging process, it can be ensured that the installation direction of the wave mirror meets the use requirements, and it can be timely judged whether the launch angle of the transmitter meets the design requirements.

[0028] The present invention adopts the concept of reference transfer conversion and combines it with the design form of the overall structure to design a batch debugging device suitable for energy-type laser transmitters, which solves the problem of inaccurate installation direction of the wave mirror, and at the same time greatly improves the installation accuracy and stability of batch debugging of the transmitter. It has been applied in a batch production project of a certain type of laser device. This design idea has also been effectively promoted and applied in various research and development and batch production projects.

[0029] The example debugging implementation process is as follows:

[0030] 1. As Figure 1 In the transmitter shown, the wave mirror assembly 1 and the transmitting lens assembly 2 are assembled separately and installed in the corresponding positions of the laser frame to form a transmitting optical lens 3.

[0031] 2. If Figure 1 In the transmitter shown, the transmitting circuit board 4 containing the laser and the laser frame of the transmitting optical lens 3 are assembled through a series of connecting parts to form the transmitter.

[0032] 3. Such as Figure 1In the transmitter shown, the laser is at the focal position of the emitting optical lens 3, the emitting lens assembly 2 is rotated, and the laser emission spot passes through the focusing and shaping effect of the emitting lens in the emitting optical lens 3 until a sharp and clear stripe spot is formed, and the rotation of the emitting lens assembly 2 is stopped and fixed. The wave mirror assembly 1 is rotated, and through the beam expansion effect of the wave mirror installed in place, a stripe emission spot with an emission angle greater than or equal to 45° can be formed, and the rotation of the wave mirror assembly 1 is stopped and fixed.

[0033] 4. Use the leveling instrument to establish a reference line on the target wall with the earth level as the reference, and set a calibrated red horizontal reference line on the wall.

[0034] 5. As Figure 2 In the schematic diagram of establishing a benchmark for the debugging device shown, the adjustable base 9 is fixed to the rotating angular displacement platform 10 by four countersunk screws. The pitch adjustment range of the rotating angular displacement platform 10 is ±10° and the accuracy is 5′. The rotating angular displacement platform 10 is fixed to the fixed base plate 11 by four countersunk screws. The debugging bracket 8 is installed on the adjustable base 1, and two debugging rods 5 are installed in the screw holes corresponding to the debugging bracket 8. The leveling block 6 is placed on the debugging rod 5, and the level 7 is placed on the leveling block 6. By rotating the adjustment knob of the angular displacement platform 10 (adjusting the angle of the adjustable base), the mounting hole of the debugging bracket 8 is horizontally established with the ground to establish a benchmark relationship.

[0035] 6. As Figure 2 In the schematic diagram of establishing a benchmark for the debugging device shown, after the mounting hole of the debugging bracket 8 establishes a benchmark relationship with the ground level, the mounting hole has established a benchmark with the target wall through benchmark conversion, the debugging bracket 8 does not move, and the debugging rod 5 is removed.

[0036] 7. Such as Figure 3 In the debugging device debugging transmitter application diagram shown, the transmitter 13 is installed on the mounting hole of the debugging bracket 8 through the conical surface of the fixing screw 12 using the self-centering principle. Since the mounting hole of the debugging bracket 8 is parallel to the earth, the mounting hole of the transmitter 13 can be ensured to be parallel to the earth through the conversion of the reference, thereby establishing a reference relationship with the target wall.

[0037] 8. As Figure 3In the debugging device debugging transmitter application diagram shown, the distance between the transmitter 13 and the target wall is set to H = 6m, and the optical theoretical design requires the laser spot emission angle θ = 46°. After calculation, when the laser spot length L = 2*tan(θ / 2)*H = 2*tan23°*6 = 5.09m≈5.1m, the emission angle θ = 46°, which meets the design requirements. Mark 5.1m on the target wall. When assembling the wave mirror assembly, observe the direction and length of the strip light spot. If the strip light spot completely overlaps or is parallel to the red reference line on the wall, and the strip light spot length L is greater than or equal to 5.1m, then continue to assemble and fix the wave mirror assembly. If L is less than 5.1m, it is necessary to stop the assembly, disassemble the transmitter 13, and troubleshoot to find the cause.

[0038] 9. When assembling the wave mirror assembly, first apply enough adhesive on the outer circle of the wave mirror assembly, gently install the wave mirror assembly into the corresponding position of the emitting optical lens, and slowly rotate the wave mirror assembly with the central axis of the emitting optical lens as the axis. The direction of the laser emission spot will change. Observe the direction of the laser emission spot on the target wall. When the direction of the laser emission spot coincides with or is parallel to the direction of the wall reference line, stop rotating the wave mirror assembly, fix the position of the wave mirror assembly, and mark the position with a marker.

[0039] 10. Wipe off excess adhesive, rotate the fixing screw 12 in the opposite direction, remove the transmitter 13, and the transmitter 13 is debugged.

[0040] 11. The emitter 13 is left to solidify for a specified time according to the process requirements.

[0041] After the emitter on a certain batch production model laser device was debugged using this device, the batch debugging accuracy and efficiency of the laser spot were guaranteed. Through the precise reference conversion principle and simple mechanical components, the angle error of the spot relative to the emitter mounting hole is controlled at ±0.11°, which is much lower than the angle error of ±0.55° of the traditional method, which increases the debugging accuracy of the spot by 5 times. At the same time, it provides sufficient debugging space for subsequent assembly and joint debugging, greatly improving the joint debugging efficiency. At the same time, the design method of this device can be generally applied to the debugging process of the emitter spot of large-scale production models, which can greatly improve the debugging accuracy and stability, and also provide the necessary technical reserves for the future development of more complex and more integrated optical system models.

[0042] It can be seen from the above technical scheme that the present invention can make the transmitter and the overall structure accurately positioned and the debugging benchmark unified, ensuring the debugging accuracy and debugging efficiency of the laser emission spot, solving the problem that it is difficult to achieve the accuracy requirements of the wave mirror installation direction in the traditional installation and adjustment method, greatly improving the installation and calibration efficiency of the transmitter, and being suitable for mass production mode. The device of the present invention has been maturely applied in the transmitter debugging process of a certain batch of production models, effectively improving the debugging accuracy and debugging efficiency of the transmitter laser spot, and at the same time providing sufficient debugging space for subsequent general assembly and joint debugging.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A batch debugging device suitable for energy-type laser transmitters, characterized in that: The transmitter (13) comprises: a wave mirror assembly (1), a transmitting lens assembly (2), a transmitting optical lens (3) and a transmitting circuit board (4) containing a laser. The wave mirror assembly (1) and the transmitting lens assembly (2) are assembled to form the transmitting optical lens (3). The transmitting optical lens (3) and the transmitting circuit board (4) containing the laser constitute the transmitter. The batch debugging device comprises a fixed base plate (11), a rotating angular displacement platform (10), an adjustable base (9), a debugging bracket (8), a level (7), a leveling block (6) and a debugging rod (5). A U-shaped mounting hole is provided at the upper end of the debugging bracket (8). The adjustable base (9) is fixed to the rotating angular displacement platform (10) by four countersunk screws. The rotating angular displacement platform (10) is fixed to the fixed base plate (11) by four countersunk screws. ); the debugging bracket (8) is installed on the adjustable base (9), two debugging rods (5) are vertically installed in the corresponding threaded holes opened on both sides of the U-shaped mounting hole on the debugging bracket (8), a leveling block (6) is placed on the debugging rod (5), a level meter (7) is placed on the leveling block (6), and the angle of the adjustable base (9) is adjusted by rotating the adjustment knob of the angular displacement table (10) so that the mounting hole of the debugging bracket (8) and the ground level establish a reference relationship; during batch debugging, fixing screws 12 are installed in the threaded holes on both sides of the U-shaped mounting hole, one end of the transmitter (13) is arranged in the U-shaped mounting hole, and the other end is clamped between the two fixing screws 12, and the transmitter (13) is installed on the mounting hole of the debugging bracket (8) by using the conical surface of the fixing screw (12) and the self-centering principle.

2. The batch debugging device for energy-type laser transmitters as claimed in claim 1, characterized in that: The pitch adjustment range of the rotary angular displacement stage (10) is ±10°, and the accuracy is 5′.

3. The batch debugging device for energy-type laser transmitters as claimed in claim 2, characterized in that: The laser emission spot is subjected to the focusing and shaping effect of the emission lens component (2) to form an optimal focal plane; and then subjected to the beam expansion effect of the wave mirror component (1) to form a strip-shaped emission spot with an emission angle of θ.

4. The batch debugging device for energy-type laser transmitters as claimed in claim 3, characterized in that: The mounting hole of the debugging bracket (8) is parallel to the earth. Through the conversion of the reference, the mounting hole at the center of the transmitter (13) is parallel to the earth and establishes a reference with the target wall surface. The wave mirror assembly (1) on the transmitter (13) is rotated to make the emission spot coincide with or parallel to the wall reference until the use requirements are met.

5. The batch debugging device for energy-type laser transmitters as claimed in claim 4, characterized in that: The vertical distance between the transmitter (13) and the target wall is H, the length of the laser light stripe projected onto the target wall is L, and the emission angle θ of the transmitter is 2*arctan(L / 2H); when H is fixed and the laser light stripe is adjusted to completely coincide with or be parallel to a reference line of the target wall, the length L of the laser light stripe is measured, and an actual value of θ is calculated by θ=2*arctan(L / 2H), so as to determine whether the emission angle θ of the laser light spot meets the design requirements.

6. The batch debugging device for energy-type laser transmitters as claimed in claim 5, characterized in that: The emission angle θ of the laser spot signal in the transmitter (13) is greater than 45°, thus achieving full coverage of the 360° field of view.

7. The batch debugging device for energy-type laser transmitters as claimed in claim 6, characterized in that: During debugging, a reference line is established on the target wall surface by using a level meter (7) with the earth level as a reference, and a calibrated red horizontal reference line is set on the wall surface. After the mounting hole of the debugging bracket (8) establishes a reference relationship with the earth level, the debugging bracket (8) is kept stationary, the debugging rod (5) is removed, and the transmitter (13) is installed.

8. The batch debugging device for energy-type laser transmitters as claimed in claim 7, characterized in that: When assembling the wave mirror assembly (1), firstly, a sufficient amount of adhesive is applied to the outer circle of the wave mirror assembly (1), and the wave mirror assembly (1) is installed into the emitting optical lens (3). The wave mirror assembly (1) is rotated with the central axis of the emitting optical lens (3) as the axis, and the direction of the laser (13) emitting light spot changes. The direction of the laser emitting light spot on the target wall is observed. When the direction of the laser emitting light spot coincides with or is parallel to the direction of the wall reference line, the rotation of the wave mirror assembly (1) is stopped, the position of the wave mirror assembly (1) is fixed, and the position is marked with a marker.

9. A batch debugging method suitable for energy-type laser transmitters, characterized in that: The debugging method shown uses the debugging device described in any one of claims 1-8 for debugging.

10. Application of the debugging device according to any one of claims 1 to 8 in the field of mechanical design.

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