A lidar assembly and method of use thereof

Abstract

The application provides a laser radar assembling device and a use method thereof, and belongs to the technical field of production and assembly. The laser radar assembling device comprises a mounting platform, an adjusting platform and an executing mechanism. The mounting platform is used for fixing a mirror frame. The adjusting platform comprises a fixing tool and an adjusting mechanism. The fixing tool is connected to the adjusting mechanism. The fixing tool is used for fixing a circuit board. The adjusting mechanism is used for adjusting the position of the fixing tool, so that the circuit board moves to an assembling position for assembling with the mirror frame, so that a connecting ring is positioned and matched with a connecting column. The executing mechanism is used for connecting the connecting column and the connecting ring, so as to fix the circuit board on the mirror frame. The laser radar assembling device with the structure can take the mirror frame of an optical-mechanical module as a reference, adjust the position of the circuit board through the adjusting mechanism, and set the connecting ring of the circuit board on the connecting column of the mirror frame, so as to improve the assembling precision between the circuit board and the mirror frame, and ensure the position precision between the circuit board and the lens of the optical-mechanical module.

Description

Technical Field

[0001] This application relates to the field of production assembly technology, and more specifically, to a lidar assembly device and its usage method. Background Technology

[0002] In the construction industry, on-site measurement is a fundamental and crucial step. Current on-site measurement methods in the construction industry are labor-intensive, require numerous tools, and are difficult for a single person to complete. Furthermore, the sampling points are low, the work is inefficient and tedious, and the measurement results are greatly affected by the operator's operational standards, making it difficult to guarantee measurement accuracy. In contrast, lidar has unparalleled advantages in terms of reliability, detection range, and ranging accuracy. LiDAR calculates the relative distance to a target object by emitting and receiving laser beams and analyzing the time it takes for the laser to return after encountering the target object.

[0003] LiDAR (LiDAR) is a radar system that uses laser beams to detect the position and orientation of targets. Its working principle involves first emitting a detection laser beam towards the target. The target reflects the laser beam, and the reflected beam is projected onto a sensor at different positions, thus determining the target's distance. The optical system of a LiDAR consists of an optomechanical module, a transmitting circuit board, and a receiving circuit board. The optomechanical module includes a frame and transmitting and receiving lenses mounted on it. Both the transmitting and receiving circuit boards are mounted on the frame. The laser emitted by the transmitting circuit board is processed by the transmitting lens before being emitted to the target. The receiving circuit board receives the laser reflected from the target and processed by the receiving lens to determine the target's distance. However, existing LiDAR optical systems suffer from poor assembly precision and low assembly stability, resulting in low accuracy in adjusting the depth of focus and depth of field. This often leads to poor detection performance during use. Summary of the Invention

[0004] This application provides a lidar assembly device and its usage method to improve the poor detection performance of existing lidar.

[0005] In a first aspect, embodiments of this application provide a lidar assembly device. The lidar includes an optomechanical module and a circuit board. The optomechanical module includes a frame and lenses. The lenses are mounted on the frame. The frame has connecting posts. The circuit board has connecting rings. The lidar assembly device includes an installation platform, an adjustment platform, and an execution mechanism. The installation platform is used to fix the frame. The adjustment platform includes a fixing fixture and an adjustment mechanism. The fixing fixture is connected to the adjustment mechanism and is used to fix the circuit board. The adjustment mechanism is used to adjust the position of the fixing fixture so that the circuit board moves to an assembly position with the frame, such that the connecting ring is positioned and engaged with the connecting posts. The execution mechanism is used to connect the connecting posts and the connecting ring to fix the circuit board to the frame.

[0006] In the above technical solution, the lidar assembly device includes an installation platform, an adjustment platform, and an execution mechanism. The installation platform can fix the lens frame of the optomechanical module. The fixing fixture of the adjustment platform can fix the circuit board. The adjustment mechanism can then move the circuit board on the fixing fixture to the assembly position, allowing the connecting ring of the circuit board to be fitted onto the connecting post of the lens frame. Finally, the execution mechanism connects the connecting post and the connecting ring, thereby realizing the assembly of the circuit board and the optomechanical module. This lidar assembly device uses the lens frame of the optomechanical module as a reference, adjusting the position of the circuit board through the adjustment mechanism to fit the connecting ring of the circuit board onto the connecting post of the lens frame, and connecting the circuit board to the connecting post of the lens frame through the execution mechanism. This improves the assembly accuracy and stability between the circuit board and the lens frame of the optomechanical module, ensuring the positional accuracy between the circuit board and the lenses of the optomechanical module. This effectively improves the adjustment accuracy of the focal depth and depth of field of the lidar optical system, reducing the phenomenon of poor detection effect during lidar use.

[0007] In addition, the lidar assembly device provided in this application embodiment also has the following additional technical features:

[0008] In some embodiments, the adjustment mechanism is a three-coordinate drive mechanism; the three-coordinate drive mechanism is used to drive the fixed fixture to move along the front-back direction, the left-right direction, and the up-down direction.

[0009] In the above technical solution, by using a three-coordinate drive mechanism as the adjustment mechanism, the adjustment mechanism can drive the fixed fixture to move in three directions, thereby improving the degree of freedom of movement of the fixed fixture, which is beneficial to improving the applicability of the lidar assembly device, and thus enabling the assembly of optical systems for different types of lidar.

[0010] In some embodiments, the fixing fixture includes a mounting base, a first clamping member, and a first locking member; the mounting base is connected to the adjusting mechanism; the first clamping member is adjustablely disposed on the mounting base, and the first clamping member is used to press the circuit board against the mounting base to fix the circuit board on the mounting base; the first locking member is used to releasably lock the first clamping member and the mounting base.

[0011] In the above technical solution, by adjusting the position of the first clamping member on the mounting base, the first clamping member can press the circuit board onto the mounting base when it moves relative to the mounting base. This allows the circuit board to be detachably mounted on the mounting base, resulting in a simple structure that is easy to implement. Furthermore, the first locking member can lock the first clamping member to prevent it from moving relative to the mounting base, thus ensuring the stability and reliability of the first clamping member pressing on the circuit board. This helps reduce the risk of the circuit board falling off or shifting during assembly, ensuring the assembly accuracy between the frame and the circuit board.

[0012] In some embodiments, the upper surface of the mounting base is provided with a groove extending in the front-rear direction; the first clamping member is movably disposed in the groove in the front-rear direction.

[0013] In the above technical solution, by opening a groove on the mounting base and movably placing the first clamping member in the groove in the front-back direction, the first clamping member can clamp the circuit board when it moves relative to the mounting base in the front-back direction, thereby achieving the fixing effect of the circuit board. This structure is easy to operate and has high stability.

[0014] In some embodiments, along the front-back direction, the first clamping member has a first clearance notch at one end near the connecting post, the first clearance notch being used to avoid the connecting post.

[0015] In the above technical solution, by opening a first clearance notch at the end of the first clamping member facing the connecting post, the first clearance notch can avoid the connecting post when the first clamping member moves in the front-back direction relative to the mounting base and presses against the circuit board. Thus, the first clamping member with this structure can reduce the interference between the first clamping member and the connecting post on the one hand, and effectively increase the contact area between the first clamping member and the circuit board on the other hand, which is conducive to improving the reliability of the first clamping member pressing against the circuit board.

[0016] In some embodiments, the bottom wall of the chute is provided with a positioning groove for accommodating the circuit board.

[0017] In the above technical solution, by creating a positioning groove on the bottom wall of the slide, the positioning groove can play a certain positioning role for the circuit board, so as to facilitate the placement of the circuit board on the mounting base. In addition, by creating the positioning groove on the bottom wall of the slide, this structure facilitates the first clamping member to clamp the circuit board placed in the positioning groove.

[0018] In some embodiments, the mounting platform includes a base, two second clamping members, and two second locking members; the base has a support portion for placing the eyeglass frame; the two second clamping members are respectively located on both sides of the support portion in the left-right direction, the positions of the second clamping members are adjustable on the base, and the two second clamping members are respectively used to press the eyeglass frame on both sides in the left-right direction against the base to fix the eyeglass frame on the base; the second locking members are correspondingly arranged with the second clamping members, and the second locking members are used to releasably lock the corresponding second clamping member to the base.

[0019] In the above technical solution, by arranging two second clamping members on both sides of the support in the left-right direction, and adjusting the position of the second clamping members on the base, the two second clamping members can press the two sides of the lens frame against the base when moving relative to the mounting seat. This allows the lens frame of the optomechanical module to be detachably mounted on the base, resulting in a simple structure and high stability. Furthermore, the second locking member can lock the corresponding second clamping member onto the base, preventing movement of the second clamping member relative to the mounting seat. This ensures the stability and reliability of the second clamping member pressing on the lens frame, thereby reducing the risk of the lens frame falling off or shifting during assembly and ensuring the assembly accuracy between the lens frame and the circuit board.

[0020] In some embodiments, the eyeglass frame includes an eyeglass frame body and two positioning parts; the eyeglass frame body has the connecting post, the lens is mounted on the eyeglass frame body, and the two positioning parts are respectively connected to the two sides of the eyeglass frame body in the left-right direction; the base is provided with positioning protrusions that are positioned and cooperate with the positioning parts; the second clamping member is provided correspondingly to the positioning parts, and the second clamping member is used to press the positioning parts onto the base.

[0021] In the above technical solution, the positioning protrusions on the base, which are mutually positioned and engaged with the positioning parts of the eyeglass frame, facilitate the positioning of the eyeglass frame on the base, ensuring the accuracy of the eyeglass frame fixed on the mounting platform, and thus improving the assembly accuracy between the eyeglass frame and the circuit board. Furthermore, by pressing the second clamping member onto the positioning part, this structure enhances the firmness and stability of the eyeglass frame mounted on the base.

[0022] In some embodiments, the eyeglass frame further includes a connecting portion that connects the positioning portion and the eyeglass frame body; the second clamping member has a second clearance notch at one end in the left-right direction for clamping the positioning portion, and the second clearance notch is used to avoid the connecting portion.

[0023] In the above technical solution, by opening a second clearance notch at one end of the second clamping member pressing against the positioning part of the frame, the second clearance notch can avoid the connecting part of the frame when the second clamping member is pressed against the positioning part of the frame. Thus, the second clamping member with this structure can reduce the interference between the second clamping member and the connecting part of the frame, and can effectively increase the contact area between the second clamping member and the positioning part of the frame, which is beneficial to improving the reliability of the second clamping member pressing against the positioning part of the frame.

[0024] In some embodiments, the lidar assembly device includes two adjustment platforms; the two adjustment platforms are disposed opposite to each other on both sides of the mounting platform along the left-right direction.

[0025] In the above technical solution, by setting an adjustment platform on each side of the installation platform and arranging the two adjustment platforms opposite each other in the left-right direction, the lidar assembly device can simultaneously assemble two circuit boards onto the lens frame of the optomechanical module, thereby improving assembly efficiency.

[0026] In some embodiments, the actuator is used to weld the connecting post and the connecting ring.

[0027] In the above technical solution, the connecting column and the connecting ring can be welded by the actuator to achieve the welding of the connecting ring to the connecting column, thereby fixing the circuit board to the lens frame of the optomechanical module. This helps to increase the connection stability between the circuit board and the optomechanical module, and thus ensures the accuracy of the focal depth and depth of field of the LiDAR optical system in the later use process.

[0028] In some embodiments, the lidar assembly device further includes a vision module; the vision module is disposed above the mounting platform, the vision module is used to acquire the position information of the connecting ring, and the adjustment mechanism is used to respond to the position information and adjust the position of the fixing fixture to move the circuit board to the assembly position.

[0029] In the above technical solution, by setting a vision module above the installation platform, the vision module can obtain the position information of the connecting ring of the circuit board, so that the adjustment mechanism can adjust the position of the circuit board in response to the position information. Thus, the vision module plays a certain correction and detection role, thereby effectively ensuring that the connecting ring is accurately fitted onto the connecting post, thereby improving the assembly accuracy between the circuit board and the lens frame of the optomechanical module.

[0030] Secondly, embodiments of this application also provide a method for using a lidar assembly device, applicable to the aforementioned lidar assembly device, the method comprising:

[0031] The lens frame of the optical engine module is fixed to the mounting platform;

[0032] The circuit board is fixed on the fixture;

[0033] The position of the fixing fixture is adjusted by the adjustment mechanism so that the circuit board moves to the assembly position, and the connecting ring and the connecting post are positioned and engaged.

[0034] The connecting column is connected to the connecting ring via the actuator. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 An exploded view of the optical system of the lidar provided in the embodiments of this application;

[0037] Figure 2 for Figure 1 The diagram shows the structure of the optomechanical module of the optical system.

[0038] Figure 3 This is a schematic diagram of the structure of the lidar assembly device provided in the embodiments of this application;

[0039] Figure 4 for Figure 3 The exploded view of the lidar assembly shown.

[0040] Figure 5 for Figure 3 A schematic diagram of the fixing fixture of the adjustment platform of the lidar assembly device shown;

[0041] Figure 6 for Figure 3 The diagram shows the structure of the installation platform.

[0042] Figure 7 for Figure 2 A magnified view of part A of the optical-mechanical module shown;

[0043] Figure 8This is a flowchart illustrating the method of using the lidar assembly device provided in the embodiments of this application.

[0044] Icons: 100-Optical system; 10-Optical module; 11-Frame; 111-Connecting post; 112-Frame body; 113-Positioning part; 1131-Positioning hole; 114-Connecting part; 12-Lens; 20-Circuit board; 21-Connecting ring; 200-LiDAR assembly device; 30-Mounting platform; 31-Base; 311-Support part; 312-Positioning protrusion; 32-Second clamping element; 321-Second through hole; 322-Second clearance notch; 33-Second locking element; 40-Adjusting platform; 41-Fixing fixture; 411-Mounting base; 4111-Slide groove; 4112-First part; 4113-Second part; 4114-Positioning groove; 4115-Third clearance notch; 412-First clamping element; 4121-First through hole; 4122-First clearance notch; 413-First locking element; 42-Adjusting mechanism; 50-Vision module; X-Front-back direction; Y-Left-right direction; Z-Up-down direction. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] Example

[0050] Combination Figure 1 and Figure 2 As shown, Figure 1 This is an exploded view of the optical system 100 of the lidar provided in the embodiments of this application. Figure 2 for Figure 1 The diagram shows the structure of the optomechanical module 10 of the optical system 100. The LiDAR optical system 100 includes the optomechanical module 10 and two circuit boards 20 (a transmitting circuit board and a receiving circuit board). The optomechanical module 10 includes a frame 11 and two lenses 12 (a transmitting lens and a receiving lens, respectively corresponding to the transmitting and receiving circuit boards). Four connecting posts 111 (two first connecting posts and two second connecting posts, the first connecting posts connecting to the transmitting circuit board and the second connecting posts connecting to the receiving circuit board) protrude from one side of the frame 11. The transmitting and receiving lenses are mounted on the side of the frame 11 facing away from the first and second connecting posts. The circuit boards 20 have two connecting rings 21 for inserting the connecting posts 111 (the transmitting circuit board has two first connecting rings, each for inserting into one first connecting post, and each first connecting ring connected to a corresponding first connecting post; the receiving circuit board has two second connecting rings, each for inserting into one second connecting post, and each second connecting ring connected to a corresponding second connecting post).

[0051] Optionally, the connecting post 111 and the frame 11 can be an integral structure or a separate structure. When the connecting post 111 and the frame 11 are an integral structure, the connecting post 111 and the frame 11 can be manufactured using a casting process; when the connecting post 111 and the frame 11 are separate structures, the connecting post 111 can be connected to the frame 11 by welding or screwing.

[0052] The circuit board includes a laser emitter that emits laser light towards a target. The receiving circuit board includes a laser detector that receives the laser light reflected from the target. A radiating lens shapes the laser light emitted by the emitter to ensure it is parallel to the target, while a receiving lens shapes the laser light reflected from the target to focus it onto the laser detector.

[0053] The inventors discovered that when the assembly precision of the transmitting circuit board and the receiving circuit board is poor and the assembly stability is low, it often leads to low adjustment precision of the focal depth and depth of field between the laser emitter and the transmitting lens on the transmitting circuit board and between the laser detector and the receiving lens on the receiving circuit board. This is not conducive to the use of lidar and can easily cause poor detection performance during the use of lidar.

[0054] Based on the above considerations, in order to solve the problem of poor detection effect that often occurs during the use of lidar, the inventors have conducted in-depth research and designed a lidar assembly device. This device can improve the poor assembly accuracy and low assembly stability of the existing lidar optical system, which leads to low adjustment accuracy of the focal depth and depth of field of the lidar optical system. As a result, the lidar often suffers from poor detection effect during use. The specific structure of the lidar assembly device will be described in detail below with reference to the accompanying drawings.

[0055] Reference Figure 1 and Figure 2 Please refer to further details. Figure 3 and Figure 4 The lidar assembly device 200 includes a mounting platform 30, an adjustment platform 40, and an actuator (not shown in the figure). The mounting platform 30 is used to fix the lens frame 11. The adjustment platform 40 includes a fixing fixture 41 and an adjustment mechanism 42. The fixing fixture 41 is connected to the adjustment mechanism 42 and is used to fix the circuit board 20. The adjustment mechanism 42 is used to adjust the position of the fixing fixture 41 so that the circuit board 20 moves to the assembly position for assembly with the lens frame 11, so that the connecting ring 21 and the connecting post 111 are positioned and engaged. The actuator is used to connect the connecting post 111 and the connecting ring 21 to fix the circuit board 20 to the lens frame 11.

[0056] The lidar assembly device 200 includes a mounting platform 30, an adjustment platform 40, and an execution mechanism. The mounting platform 30 secures the lens frame 11 of the optomechanical module 10. The fixing fixture 41 on the adjustment platform 40 secures the circuit board 20. The adjustment mechanism 42 moves the circuit board 20 on the fixing fixture 41 to the assembly position, allowing the connecting ring 21 of the circuit board 20 to be fitted onto the connecting post 111 of the lens frame 11. Finally, the execution mechanism connects the connecting post 111 and the connecting ring 21, thus assembling the circuit board 20 with the optomechanical module 10. This lidar assembly device 200, with this structure, can... Using the lens frame 11 of the optical engine module 10 as a reference, the position of the circuit board 20 is adjusted by the adjustment mechanism 42 so that the connecting ring 21 of the circuit board 20 is sleeved on the connecting post 111 of the lens frame 11, and the circuit board 20 is connected to the connecting post 111 of the lens frame 11 by the execution mechanism. This helps to improve the assembly accuracy and assembly stability between the circuit board 20 and the lens frame 11 of the optical engine module 10, so as to ensure the positional accuracy between the circuit board 20 and the lens 12 of the optical engine module 10. In this way, the adjustment accuracy of the focal depth and depth of field of the optical system 100 of the lidar can be effectively improved, thereby reducing the phenomenon of poor detection effect of lidar during use.

[0057] In this embodiment, the lidar assembly device 200 includes two adjustment platforms 40 arranged opposite each other on both sides of the mounting platform 30 along the left-right direction Y. By providing an adjustment platform 40 on each side of the mounting platform 30 and arranging the two adjustment platforms 40 opposite each other along the left-right direction Y, the lidar assembly device 200 can simultaneously assemble two circuit boards 20 (a transmitting circuit board and a receiving circuit board) to assemble the two circuit boards 20 onto the lens frame 11 of the optomechanical module 10, thereby improving assembly efficiency.

[0058] The adjustment mechanism 42 is a three-coordinate drive mechanism, which drives the fixed fixture 41 to move along the front-back direction (X), the left-right direction (Y), and the up-down direction (Z). By using a three-coordinate drive mechanism as the adjustment mechanism 42, the adjustment mechanism 42 can drive the fixed fixture 41 to move in three directions, thereby increasing the degree of freedom of movement of the fixed fixture 41. This is beneficial to expanding the applicability of the lidar assembly device 200, and thus enabling the assembly of optical systems 100 for different types of lidar. The specific structure of the three-coordinate drive mechanism can be found in related technologies and will not be described in detail here.

[0059] Optionally, the actuator is used to weld the connecting post 111 and the connecting ring 21. The actuator can weld the connecting post 111 and the connecting ring 21 to the connecting post 111, thereby fixing the circuit board 20 onto the lens frame 11 of the optomechanical module 10. This increases the connection stability between the circuit board 20 and the optomechanical module 10, thus ensuring the accuracy of the focal depth and depth of field of the lidar's optical system 100 during later use.

[0060] For example, the actuator is a welding torch, which welds the connecting post 111 and the connecting ring 21 by soldering.

[0061] It should be noted that the actuator can also be other structures, such as an adhesive applicator, which is used to bond the connecting column 111 and the connecting ring 21.

[0062] In this embodiment, combined with Figure 4 and Figure 5 As shown, the fixing fixture 41 includes a mounting base 411, a first clamping member 412, and a first locking member 413. The mounting base 411 is connected to the adjusting mechanism 42. The first clamping member 412 is adjustablely disposed on the mounting base 411, and is used to press the circuit board 20 against the mounting base 411 to fix the circuit board 20 on the mounting base 411. The first locking member 413 is used to releasably lock the first clamping member 412 and the mounting base 411.

[0063] By adjusting the position of the first clamping member 412 on the mounting base 411, the first clamping member 412 can press the circuit board 20 onto the mounting base 411 when it moves relative to the mounting base 411. This allows the circuit board 20 to be detachably mounted on the mounting base 411, resulting in a simple structure that is easy to implement. Furthermore, the first locking member 413 can lock the first clamping member 412 to prevent it from moving relative to the mounting base 411. This ensures the stability and reliability of the first clamping member 412 pressing against the circuit board 20, thereby reducing the risk of the circuit board 20 falling off or shifting during assembly and ensuring the assembly accuracy between the frame 11 and the circuit board 20.

[0064] Furthermore, the upper surface of the mounting base 411 is provided with a groove 4111 extending in the front-rear direction X. The first clamping member 412 is movably disposed in the groove 4111 in the front-rear direction X. By providing the groove 4111 on the mounting base 411 and movably disposing the first clamping member 412 in the groove 4111 in the front-rear direction X, the first clamping member 412 can clamp the circuit board 20 when moving relative to the mounting base 411 in the front-rear direction X, thereby achieving the function of fixing the circuit board 20. This structure is easy to operate and has high stability.

[0065] The mounting base 411 includes a first part 4112 and a second part 4113. The first part 4112 and the second part 4113 are connected to each other and form an L-shaped structure. The first part 4112 is connected to the output end of the adjustment mechanism 42 so that the adjustment mechanism 42 can drive the mounting base 411 to move. The slide groove 4111 is opened on the second part 4113, and the second part 4113 extends in the left-right direction Y.

[0066] For example, the first locking member 413 is a bolt screwed onto the mounting base 411, and the first clamping member 412 has a first through hole 4121 through which the first locking member 413 passes, so that when the first locking member 413 is tightened or loosened, the first clamping member 412 and the mounting base 411 can be locked or released. The first through hole 4121 is a strip-shaped hole arranged in the front-rear direction X, so that when the first clamping member 412 moves relative to the mounting base 411 in the front-rear direction X, the first locking member 413 can provide a certain guiding and limiting function for the first clamping member 412.

[0067] In some embodiments, along the front-rear direction X, the first clamping member 412 has a first clearance notch 4122 at one end near the connecting post 111, and the first clearance notch 4122 is used to avoid the connecting post 111.

[0068] By opening a first clearance notch 4122 at the end of the first clamping member 412 facing the connecting post 111, the first clearance notch 4122 can avoid the connecting post 111 when the first clamping member 412 moves relative to the mounting base 411 in the front-rear direction X and presses against the circuit board 20. Thus, the first clamping member 412 with this structure can reduce the interference between the first clamping member 412 and the connecting post 111, and can effectively increase the contact area between the first clamping member 412 and the circuit board 20, which is beneficial to improving the reliability of the first clamping member 412 pressing against the circuit board 20.

[0069] In some embodiments, the bottom wall of the slide 4111 is provided with a positioning groove 4114 for accommodating the circuit board 20. By providing the positioning groove 4114 on the bottom wall of the slide 4111, the positioning groove 4114 can provide a certain positioning function for the circuit board 20, so as to facilitate the placement of the circuit board 20 on the mounting base 411. In addition, by providing the positioning groove 4114 on the bottom wall of the slide 4111, this structure facilitates the first clamping member 412 to clamp the circuit board 20 placed in the positioning groove 4114.

[0070] The bottom wall of the positioning groove 4114 is also provided with a third clearance notch 4115 for avoiding the connecting post 111, so that when the circuit board 20 is placed in the positioning groove 4114, the connecting post 111 can be inserted into the connecting ring 21 of the circuit board 20.

[0071] In this embodiment, combined with Figure 4 and Figure 6 As shown, the mounting platform 30 includes a base 31, two second clamping members 32, and two second locking members 33. The base 31 has a support portion 311 for placing the eyeglass frame 11. The two second clamping members 32 are respectively located on both sides of the support portion 311 in the left-right direction Y. The positions of the second clamping members 32 are adjustablely disposed on the base 31. The two second clamping members 32 are used to press the two sides of the eyeglass frame 11 in the left-right direction Y against the base 31 to fix the eyeglass frame 11 to the base 31. The second locking members 33 are correspondingly disposed with the second clamping members 32, and the second locking members 33 are used to releasably lock the corresponding second clamping member 32 to the base 31.

[0072] By arranging two second clamping members 32 on both sides of the support portion 311 in the left-right direction Y, and adjusting the position of the second clamping members 32 on the base 31, the two second clamping members 32 can press the two sides of the lens frame 11 against the base 31 when moving relative to the mounting seat 411. This allows the lens frame 11 of the optical engine module 10 to be detachably mounted on the base 31, resulting in a simple structure and high stability. In addition, the second locking member 33 can lock the corresponding second clamping member 32 onto the base 31 to prevent the second clamping member 32 from moving relative to the mounting seat 411. This ensures the stability and reliability of the second clamping member 32 pressing on the lens frame 11, thereby reducing the risk of the lens frame 11 falling off or shifting during assembly and ensuring the assembly accuracy between the lens frame 11 and the circuit board 20.

[0073] The second clamping member 32 is movably disposed on the base 31 in the left-right direction Y, so that when the second clamping member 32 moves relative to the base 31 in the left-right direction Y, the second clamping member 32 can press against the side of the eyeglass frame 11 in the left-right direction Y, so as to stabilize the eyeglass frame 11 on the base 31.

[0074] For example, the second locking member 33 is a bolt screwed onto the base 31, and the second clamping member 32 has a second through hole 321 through which the second locking member 33 passes, so that when the second locking member 33 is tightened or loosened, the second clamping member 32 and the base 31 can be locked or released. The second through hole 321 is a strip-shaped hole arranged in the left-right direction Y, so that when the second clamping member 32 moves relative to the base 31 in the left-right direction Y, the second locking member 33 can provide a certain guiding and limiting function for the second clamping member 32.

[0075] In this embodiment, combined with Figure 6 and Figure 7 As shown, the eyeglass frame 11 includes a frame body 112 and two positioning parts 113. The frame body 112 has connecting posts 111 (two first connecting posts and two second connecting posts), and lenses 12 (a transmitting lens and a receiving lens) are mounted on the frame body 112. The two positioning parts 113 are respectively connected to both sides of the frame body 112 in the left-right direction Y. The base 31 is provided with positioning protrusions 312 that are positioned and engaged with the positioning parts 113. A second clamping member 32 is provided correspondingly to the positioning parts 113, and the second clamping member 32 is used to clamp the positioning parts 113 onto the base 31.

[0076] By providing a positioning protrusion 312 on the base 31 that engages with the positioning part 113 of the eyeglass frame 11, the eyeglass frame 11 is positioned on the base 31, ensuring the accuracy of the eyeglass frame 11 fixed on the mounting platform 30, and thus improving the assembly accuracy between the eyeglass frame 11 and the circuit board 20. Furthermore, by pressing the second clamping member 32 onto the positioning part 113, this structure enhances the firmness and stability of the eyeglass frame 11 mounted on the base 31.

[0077] The positioning part 113 has a positioning hole 1131 for the positioning protrusion 312 to be inserted, so that the positioning protrusion 312 can be positioned and engaged with the positioning part 113, thereby positioning the frame 11 on the base 31.

[0078] For example, each positioning part 113 has two positioning holes 1131, which are arranged at Z intervals in the vertical direction. Correspondingly, the base 31 is provided with four positioning protrusions 312, each of which is inserted into a positioning hole 1131.

[0079] Furthermore, the frame 11 also includes a connecting portion 114 that connects the positioning portion 113 and the frame body 112. The two positioning holes 1131 of each positioning portion 113 are located on both sides of the connecting portion 114 along the vertical direction Z. The second clamping member 32 has a second clearance notch 322 at one end in the horizontal direction Y for clamping the positioning portion 113. The second clearance notch 322 is used to avoid the connecting portion 114.

[0080] By opening a second clearance notch 322 at one end of the second clamping member 32 pressing against the positioning part 113 of the frame 11, the second clearance notch 322 can avoid the connecting part 114 of the frame 11 when the second clamping member 32 is pressed against the positioning part 113 of the frame 11. Thus, the second clamping member 32 with this structure can reduce the interference between the second clamping member 32 and the connecting part 114 of the frame 11, and can effectively increase the contact area between the second clamping member 32 and the positioning part 113 of the frame 11, which is beneficial to improving the reliability of the second clamping member 32 pressing against the positioning part 113 of the frame 11.

[0081] Optionally, see Figure 3 and Figure 4 As shown, the lidar assembly device 200 may further include a vision module 50. The vision module 50 is positioned above the mounting platform 30 and is used to acquire position information of the connecting ring 21. The adjustment mechanism 42 responds to the position information and adjusts the position of the fixing fixture 41 to move the circuit board 20 to the assembly position. The specific structure of the vision module 50 can be found in related technologies and will not be described further here.

[0082] By setting a vision module 50 above the mounting platform 30, the vision module 50 can obtain the position information of the connecting ring 21 of the circuit board 20, so that the adjustment mechanism 42 can adjust the position of the circuit board 20 in response to the position information. Thus, the vision module 50 plays a certain correction and detection role, thereby effectively ensuring that the connecting ring 21 is accurately fitted onto the connecting post 111, thereby improving the assembly accuracy between the circuit board 20 and the lens frame 11 of the optical-mechanical module 10.

[0083] For example, the vision module 50 is mounted on the mounting platform 30.

[0084] Furthermore, this application embodiment also provides a method for using the lidar assembly device 200, applicable to the aforementioned lidar assembly device 200. Please refer to [link to relevant documentation]. Figure 8 As shown, the usage method includes:

[0085] S100: Fix the lens frame 11 of the optical engine module 10 onto the mounting platform 30;

[0086] S200: Fix the circuit board 20 onto the fixture 41;

[0087] S300: Adjust the position of the fixing fixture 41 by adjusting the adjusting mechanism 42 so that the circuit board 20 moves to the assembly position so that the connecting ring 21 and the connecting post 111 are positioned and engaged;

[0088] S400: The connecting column 111 is connected to the connecting ring 21 by the actuator.

[0089] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0090] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lidar assembly device, the lidar comprising an optomechanical module and a circuit board, the optomechanical module comprising a frame and lenses, the lenses being mounted on the frame, the frame having connecting posts, and the circuit board having connecting rings, characterized in that, The lidar assembly device includes: The mounting platform is used to fix the eyeglass frame; An adjustment platform is provided, comprising a fixing fixture and an adjustment mechanism. The fixing fixture is connected to the adjustment mechanism and is used to fix the circuit board. The adjustment mechanism is used to adjust the position of the fixing fixture so that the circuit board moves to the assembly position for assembly with the eyeglass frame, thereby positioning and engaging the connecting ring with the connecting post. An actuator is provided for connecting the connecting post and the connecting ring to fix the circuit board to the eyeglass frame; The adjustment mechanism is a three-coordinate drive mechanism, which is used to drive the fixed fixture to move along the front-back direction, the left-right direction and the up-down direction. The mounting platform includes a base, two second clamping members, and two second locking members. The base has a support portion for placing the eyeglass frame. The two second clamping members are respectively located on both sides of the support portion in the left-right direction. The positions of the second clamping members are adjustable on the base. The two second clamping members are used to press the eyeglass frame against the base on both sides in the left-right direction to fix the eyeglass frame on the base. The second locking members are correspondingly arranged with the second clamping members and are used to releasably lock the corresponding second clamping member to the base. The eyeglass frame includes an eyeglass frame body and two positioning parts. The eyeglass frame body has the connecting post. The lens is mounted on the eyeglass frame body. The two positioning parts are respectively connected to the two sides of the eyeglass frame body in the left-right direction. The base is provided with a positioning protrusion on the side of the base facing the eyeglass frame in the front-back direction, which is positioned and cooperates with the positioning parts. The second clamping member is provided corresponding to the positioning parts and is used to press the positioning parts onto the base in the front-back direction. The eyeglass frame also includes a connecting part that connects the positioning part and the eyeglass frame body. The second clamping member has a second clearance notch at one end in the left-right direction for clamping the positioning part. The second clearance notch is used to avoid the connecting part.

2. The lidar assembly device according to claim 1, characterized in that, The fixing fixture includes a mounting base, a first clamping member, and a first locking member; The mounting base is connected to the adjustment mechanism; The first clamping member is adjustablely positioned on the mounting base, and the first clamping member is used to press the circuit board against the mounting base to fix the circuit board on the mounting base; The first locking member is used to releasably lock the first clamping member and the mounting base.

3. The lidar assembly device according to claim 2, characterized in that, The upper surface of the mounting base is provided with a sliding groove extending along the front-rear direction; The first clamping member is movably disposed within the groove along the front-back direction.

4. The lidar assembly device according to claim 3, characterized in that, Along the front-back direction, the first clamping member has a first clearance notch at one end near the connecting post, and the first clearance notch is used to avoid the connecting post.

5. The lidar assembly device according to claim 3, characterized in that, The bottom wall of the chute has a positioning groove for accommodating the circuit board.

6. The lidar assembly device according to claim 1, characterized in that, The lidar assembly device includes two adjustment platforms; Along the left-right direction, the two adjustment platforms are arranged opposite each other on both sides of the installation platform.

7. The lidar assembly device according to claim 1, characterized in that, The actuator is used to weld the connecting column and the connecting ring.

8. The lidar assembly device according to claim 1, characterized in that, The lidar assembly device also includes a vision module; The vision module is positioned above the mounting platform. The vision module is used to acquire the position information of the connecting ring. The adjustment mechanism is used to respond to the position information and adjust the position of the fixing fixture to move the circuit board to the assembly position.

9. A method of using a lidar assembly device, applicable to the lidar assembly device according to any one of claims 1-8, characterized in that, The method of use includes: The lens frame of the optical engine module is fixed to the mounting platform; The circuit board is fixed on the fixture; The position of the fixing fixture is adjusted by the adjustment mechanism so that the circuit board moves to the assembly position, and the connecting ring and the connecting post are positioned and engaged. The connecting column is connected to the connecting ring via the actuator.

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