A floating positioning mechanism, flatness multidimensional adjustment device and laser emitter and lens barrel assembly equipment

Abstract

The application provides a floating positioning mechanism, a flatness multidimensional adjustment device and an AA device, which comprises a floating mechanism, a first connecting plate, a buffer assembly, a floating shaft assembly and a pull plate; the first connecting plate is connected with the mounting disc through the buffer assembly; one end of the floating shaft assembly is connected with the first connecting plate, and the other end is connected with the pull plate; a one-way positioning mechanism comprises a first driving device and a first floating head arranged at the output end of the first driving device; the first driving device is connected with the first connecting plate, and the first floating head acts on the floating shaft assembly to position and adjust; the application can realize multidimensional floating, adjustment and positioning in a small range, which helps to ensure the high-precision assembly of the laser radar component; wherein the floating positioning mechanism can be finely adjusted and positioned to ensure the accuracy of the TX module assembly position and angle.

Description

Technical Field

[0001] This invention relates to the field of lidar assembly technology, and in particular to a floating positioning mechanism, a multi-dimensional flatness adjustment device, and a laser emitter and lens tube assembly equipment. Background Technology

[0002] With the widespread application of intelligent driving technology in the automotive field, LiDAR technology is rapidly becoming an important component of vehicle perception systems. In modern multi-channel LiDAR systems, the coordinated operation of the laser emitter, lens, and receiver is crucial to ensuring high system accuracy and stability. The pulsed laser emitted by the laser emitter must be precisely reflected by the lens onto the receiver to obtain accurate distance and environmental information.

[0003] Due to the widespread application of LiDAR in autonomous driving and environmental perception, its high accuracy and stability requirements have become particularly important. During the manufacturing process, achieving precise alignment between the laser emitter and the lens barrel, and eliminating minute errors that may accumulate during assembly to ensure product stability and consistency, have become pressing issues for the industry. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art of ensuring the uniformity and reliability of the relative positions of the laser emitter and the lens barrel assembly.

[0005] To solve the above-mentioned technical problems, the present invention provides a floating positioning mechanism, comprising:

[0006] A floating mechanism includes a mounting plate, a first connecting plate, a buffer assembly, a floating shaft assembly, and a pull plate; the first connecting plate is connected to the mounting plate via the buffer assembly; one end of the floating shaft assembly is connected to the first connecting plate, and the other end is connected to the pull plate;

[0007] A one-way positioning mechanism includes a first driving device and a first floating head disposed at the output end of the first driving device. The first driving device is connected to a first connecting plate, and the first floating head acts on a floating shaft assembly for positioning and adjustment.

[0008] In one embodiment of the present invention, the buffer assembly includes a guide shaft, a linear bearing, and a guide plate; one end of the guide shaft is connected to the mounting plate, and the other end is connected to the guide plate; the linear bearing is coaxially sleeved outside the guide shaft, and the linear bearing is connected to the first connecting plate.

[0009] In one embodiment of the present invention, the buffer assembly further includes a pressure sensor, a pad, and a compression spring; the mounting plate is provided with a first mounting groove on the side near the first connecting plate, and the pressure sensor is disposed in the first mounting groove; the pad is clearance-fitted with the first mounting groove, and the pad abuts against the pressure sensor; one end of the compression spring is connected to the pad, and the other end is connected to the first connecting plate.

[0010] In one embodiment of the present invention, the floating shaft assembly includes a first floating shaft, a second floating shaft, steel balls, and a coupling; the first floating shaft and the second floating shaft are connected by the coupling, the first floating shaft is connected to a first connecting plate, and the second floating shaft is connected to a pull plate; the steel balls are disposed between the first floating shaft and the second floating shaft.

[0011] In one embodiment of the present invention, the floating mechanism further includes a tension spring assembly, which includes a first tension spring support, a second tension spring support, and tension springs; there are a plurality of first tension spring supports and they are disposed on the first connecting plate near the pull plate; there are a plurality of second tension spring supports and they are disposed on the pull plate near the first connecting plate, and the second tension spring supports and the first tension spring supports are arranged in a one-to-one correspondence; there are a plurality of tension springs, one end of which is connected to the first tension spring support and the other end of which is connected to the second tension spring support.

[0012] In one embodiment of the present invention, a bidirectional positioning mechanism is further provided, which is connected to the first connecting plate and acts on the floating shaft assembly and the pull plate for positioning and adjustment; the bidirectional positioning mechanism includes a second mounting plate, a second driving device, a second floating head, a third mounting plate, a third driving device, and a third floating head; the second mounting plate is connected to the floating mechanism; the second driving device is disposed on the second mounting plate, and the piston rod of the second driving device is disposed towards the floating mechanism; the second floating head is disposed at the extended end of the piston rod of the second driving device; the third mounting plate is connected to the second mounting plate; the third driving device is disposed on the third mounting plate, and the third floating head is disposed at the extended end of the piston rod of the third driving device.

[0013] In one embodiment of the present invention, the bidirectional positioning mechanism further includes an adjusting plate with a through hole, the adjusting plate being connected to a pull plate and bent in a direction away from the pull plate, and the third floating head passing through the through hole of the adjusting plate and connected to a third driving device.

[0014] The present invention also provides a flatness multi-dimensional adjustment device, including a floating positioning mechanism, a three-axis displacement mechanism connected to the floating positioning mechanism, and a gripper mechanism connected to the floating positioning mechanism.

[0015] In one embodiment of the present invention, the gripper mechanism includes an extension block, a gripper opening and closing assembly, a leveling block, and a gripper; one end of the extension block is connected to the pull plate, and the other end is connected to the gripper opening and closing assembly; the leveling block is connected to the gripper opening and closing assembly; and the gripper is drively connected to the gripper opening and closing assembly.

[0016] The present invention also provides a laser emitter and lens tube assembly device, including a flatness multi-dimensional adjustment device.

[0017] The technical solution of the present invention has the following advantages compared with the prior art:

[0018] (1) The present invention provides a floating positioning mechanism, a flatness multi-dimensional adjustment device and a laser emitter and lens barrel assembly equipment, which can realize multi-dimensional floating, adjustment and positioning within a small range, which helps to ensure the high-precision assembly of the lidar components; wherein, the floating positioning mechanism can fine-tune and position to ensure the accuracy of the assembly position and angle of the TX module.

[0019] (2) The floating positioning mechanism of the present invention includes a buffer assembly and a floating shaft assembly. The buffer assembly can reduce and absorb vibration, thereby improving the stability of the system. The floating shaft assembly can be finely adjusted in multiple directions to eliminate possible accumulated minor errors, ensuring that the assembly reaches the ideal balance position and adapts to the assembly requirements of the lidar assembly.

[0020] (3) The tension spring assembly described in this invention provides elastic support, so that the mounting plate and the tension plate in the floating mechanism form a dynamically balanced whole, which helps to make displacement and adjustment within a small range, while absorbing vibration and impact, reducing the risk of part misalignment or damage caused by external vibration. Attached Figure Description

[0021] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0022] Figure 1 This is a schematic diagram of the floating mechanism in a floating positioning mechanism of the present invention;

[0023] Figure 2 This is a front view of the floating mechanism in a floating positioning mechanism of the present invention;

[0024] Figure 3 yes Figure 2 Sectional view at point BB;

[0025] Figure 4 This is a schematic diagram of the structure of a multi-dimensional flatness adjustment device according to the present invention;

[0026] Figure 5This is a side view of a flatness multi-dimensional adjustment device according to the present invention.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Floating mechanism; 11. Mounting plate; 12. First connecting plate; 13. Buffer assembly; 131. Guide shaft; 132. Linear bearing; 133. Transmission plate; 134. Pressure sensor; 135. Pad; 136. Compression spring; 14. Floating shaft assembly; 141. First floating shaft; 142. Coupling; 143. Steel ball; 144. Second floating shaft; 15. Pull plate; 16. Tension spring assembly; 161. First tension spring support; 162. Second tension spring support; 163. 1. Tension spring; 2. One-way positioning mechanism; 21. First drive device; 22. First floating head; 23. First mounting plate; 3. Two-way positioning mechanism; 31. Second mounting plate; 32. Second drive device; 33. Second floating head; 34. Third mounting plate; 35. Third drive device; 36. Third floating head; 37. Adjusting plate; 4. Three-axis displacement mechanism; 5. Gripper mechanism; 51. Extension block; 52. Gripper opening and closing assembly; 53. Leveling block; 54. Gripper; 6. TX module; 7. Second connecting plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention. Example 1

[0029] Reference Figure 1-3 As shown, the present invention provides a floating positioning mechanism, comprising:

[0030] The floating mechanism 1 includes a mounting plate 11, a first connecting plate 12, a buffer assembly 13, a floating shaft assembly 14, and a pull plate 15; the first connecting plate 12 is connected to the mounting plate 11 through the buffer assembly 13; one end of the floating shaft assembly 14 is connected to the first connecting plate 12, and the other end is connected to the pull plate 15.

[0031] The unidirectional positioning mechanism 2 includes a first driving device 21 and a first floating head 22 disposed at the output end of the first driving device 21. The first driving device 21 is connected to the first connecting plate 12, and the first floating head 22 acts on the floating shaft assembly 14 for positioning and adjustment.

[0032] Specifically, the floating positioning mechanism mainly consists of a floating mechanism 1 and a one-way positioning mechanism 2. The floating mechanism 1 provides functions including, but not limited to, buffering, shock absorption, and multi-dimensional floating. When the floating mechanism 1 is adjusted to a specific position, the force-applying end of the one-way positioning mechanism 2 acts on the floating position of the floating mechanism 1, thus fixing and positioning it. Furthermore, in the floating mechanism 1, the mounting plate 11 is used to install the floating mechanism 1 on a larger device to achieve lifting or displacement of the floating positioning mechanism on a larger scale. One side of the first connecting plate 12 is connected to the mounting plate 11 through the buffer assembly 13, and the other side is connected to the floating shaft assembly 14. It is located between the mounting plate 11 and the pull plate 15, serving as an intermediate connector between the two systems of the buffer assembly 13 and the floating shaft assembly 14. At the same time, the first connecting plate 12 is provided with several mounting positions for connecting and fixing the one-way positioning mechanism 2, providing a firm connection for multiple components in the floating mechanism 1. When the pull plate 15 of the floating mechanism 1 is subjected to force, the buffer assembly 13 acts as a buffer between the first connecting plate 12 and the mounting plate 11. It can be constructed using various elastic components such as springs or buffer slides; the floating shaft assembly 14 is located between the first connecting plate 12 and the pull plate 15, serving as an adjustment mechanism for the angle of the pull plate 15. By adjusting the position of the floating shaft assembly 14, it ensures the accuracy of the position and angle of the pull plate 15; the pull plate 15 is located below the floating shaft assembly 14 and is used to connect the mechanism for gripping or adsorbing objects, being the lowest force-bearing end of the floating mechanism 1; furthermore, in the one-way positioning mechanism 2, the first driving device 21 is typically a cylinder, which is connected via the first mounting... Plate 23 is connected to the first connecting plate 12. The output end (cylinder piston end) of the first driving device 21 passes through the first mounting plate 23 and is positioned toward the floating shaft assembly 14. The first floating head 22 is located on the output end of the first driving device 21 and moves accordingly. When the first floating head 22 abuts against the floating shaft assembly 14, it has the function of preventing the floating shaft assembly 14 from continuing to float and positioning it. In a specific embodiment, at least two single positioning components are provided and are arranged radially along the floating shaft assembly 14 to ensure the best positioning effect.

[0033] Reference Figure 2-3 As shown, the buffer assembly 13 includes a guide shaft 131, a linear bearing 132, and a through plate 133; one end of the guide shaft 131 is connected to the mounting plate 11, and the other end is connected to the through plate 133; the linear bearing 132 is coaxially sleeved outside the guide shaft 131, and the linear bearing 132 is connected to the first connecting plate 12.

[0034] Specifically, a plurality of linear bearings 132 are arranged in a circular array relative to the midpoint of the first connecting plate 12. The upper end of the linear bearing 132 is fixedly connected to the first connecting plate 12, and drives the first connecting plate 12 to move synchronously with it. The guide shaft 131 is arranged in a one-to-one correspondence with the linear bearings 132, and its length should be greater than the length of the linear bearing 132. The two ends of the guide shaft 131 are respectively connected to the mounting plate 11 and the through plate 133, which limits the sliding length of the linear bearing 132. The through plate 133 is annular, and the floating shaft assembly 14 passes through the ring. When the pull plate 15 is subjected to force and drives the floating shaft assembly 14 to move upward, the floating shaft assembly 14 pushes the first connecting plate 12 to move upward along the guide shaft 131, which plays a buffering role.

[0035] Reference Figure 2-3 As shown, the buffer assembly 13 further includes a pressure sensor 134, a pad 135, and a compression spring 136; the mounting plate 11 has a first mounting groove on the side near the first connecting plate 12, and the pressure sensor 134 is located in the first mounting groove; the pad 135 is clearance-fitted with the first mounting groove, and the pad 135 abuts against the pressure sensor 134; one end of the compression spring 136 is connected to the pad 135, and the other end is connected to the first connecting plate 12.

[0036] Specifically, one end of the compression spring 136 acts on the first connecting plate 12, and the other end acts on the mounting plate 11 through the pad 135 and the pressure sensor 134. It is a preferred buffer between the first connecting plate 12 and the mounting plate 11, and has the advantages of vibration reduction and enhanced stability. The pressure sensor 134 is used to read the pressure reading between the compression spring 136 and the first connecting plate 12, and feeds the data back to the external data receiver to form a feedback loop, which is beneficial for further precise control and adjustment.

[0037] Reference Figure 3 As shown, the floating shaft assembly 14 includes a first floating shaft 141, a second floating shaft 144, a steel ball 143, and a coupling 142; the first floating shaft 141 and the second floating shaft 144 are connected by the coupling 142, the first floating shaft 141 is connected to a first connecting plate 12, and the second floating shaft 144 is connected to a pull plate 15; the steel ball 143 is disposed between the first floating shaft 141 and the second floating shaft 144.

[0038] Specifically, the first floating shaft 141 and the second floating shaft 144 are connected by a coupling 142 to ensure coordinated movement between them; steel balls 143 are located between the first floating shaft 141 and the second floating shaft 144 to reduce friction and maintain smooth movement; the floating shaft assembly 14 meets the requirements for minute position adjustments and fine positioning through the above structure, ensuring that the pull plate 15 connected to it can reach the ideal balance position.

[0039] Reference Figure 1-2 As shown, the floating mechanism 1 further includes a tension spring 163 assembly 16, which includes a first tension spring 163 support 161, a second tension spring 163 support 162, and tension springs 163; there are several first tension spring 163 supports 161 and they are disposed on the first connecting plate 12 near the pull plate 15; there are several second tension spring 163 supports 162 and they are disposed on the pull plate 15 near the first connecting plate 12, and the second tension spring 163 supports 162 and the first tension spring 163 supports 161 are arranged in a one-to-one correspondence; there are several tension springs 163, one end of which is connected to the first tension spring 163 support 161 and the other end is connected to the second tension spring 163 support 162.

[0040] Specifically, the tension spring 163 assembly 16 provides elastic support between the first connecting plate 12 and the pull plate 15, so that the two form a dynamically balanced whole, which can be displaced and adjusted within a small range. At the same time, the tension spring 163 assembly 16 can absorb vibration and impact, reduce the risk of part misalignment or damage caused by external vibration, and enhance the stability and durability of the system.

[0041] Reference Figure 4 As shown, there are at least two unidirectional positioning mechanisms 2, both of which are connected to the first connecting plate 12 via the first mounting plate 23; the unidirectional positioning mechanism 2 passes through the first mounting plate 23 and is arranged radially along the floating shaft assembly 14.

[0042] Specifically, the unidirectional positioning mechanism 2 performs two-point positioning, three-point positioning or multi-point positioning on the floating shaft assembly 14. By abutting the first floating head 22 in different directions with the floating shaft assembly 14, the floating shaft assembly 14 is ensured to be stable in the equilibrium position, which is conducive to the further processing.

[0043] Reference Figure 4 As shown, a bidirectional positioning mechanism 3 is also provided, which is connected to the first connecting plate 12 and acts on the floating shaft assembly 14 and the pull plate 15 for positioning and adjustment.

[0044] Specifically, in addition to the one-way positioning mechanism 2, a two-way positioning mechanism 3 can be set to further enhance the positioning effect. In one specific embodiment, the two-way positioning mechanism 3 performs positioning adjustment on the floating shaft assembly 14 and the pull plate 15 respectively. That is, while resisting the floating shaft assembly 14, the pull plate 15 is pulled back for further fine adjustment, which increases the flexibility of positioning adjustment.

[0045] Reference Figure 4-5As shown, the bidirectional positioning mechanism 3 includes a second mounting plate 31, a second driving device 32, a second floating head 33, a third mounting plate 34, a third driving device 35, and a third floating head 36; the second mounting plate 31 is connected to the floating mechanism 1; the second driving device 32 is mounted on the second mounting plate 31, and the piston rod of the second driving device 32 is positioned towards the floating mechanism 1; the second floating head 33 is located at the extended end of the piston rod of the second driving device 32; the third mounting plate 34 is connected to the second mounting plate 31; the third driving device 35 is mounted on the third mounting plate 34, and the third floating head 36 is located at the extended end of the piston rod of the third driving device 35.

[0046] Specifically, the bidirectional positioning mechanism 3 includes two sets of longitudinally arranged drive devices, both of which are cylinders. The piston ends of the cylinders are respectively provided with a second floating head 33 and a third floating head 36. When the second floating head 33 abuts against the floating shaft assembly 14, it prevents the floating shaft assembly 14 from continuing to float and positions it. The third floating head 36 acts on the pull plate 15 as the third drive device 35 retracts, further fine-tuning the position of the pull plate 15.

[0047] Reference Figure 5 As shown, the bidirectional positioning mechanism 3 also includes an adjustment plate 37 with a through hole. The adjustment plate 37 is connected to the pull plate 15 and bends away from the pull plate 15. The third floating head 36 passes through the through hole of the adjustment plate 37 and is connected to the third driving device 35.

[0048] Specifically, the adjusting plate 37 is L-shaped, with its short side connected to the first connecting plate 12. A through hole is provided on the long side of the adjusting plate 37. The third floating head 36 passes through the through hole and affects the state of the pull plate 15 through its interaction with the adjusting plate 37. Furthermore, when the third floating head 36 moves away from the adjusting plate 37 along with the third driving device 35, the pull plate 15 can move with the floating shaft assembly 14 and is not affected by the third floating head 36. When the third floating head 36 moves closer to the adjusting plate 37 along with the third driving device 35 and comes into contact with it, the pulled adjusting plate 37 drives the pull plate 15 to move, thereby implementing adjustment. Example 2

[0049] Reference Figure 4-5 As shown, the present invention also provides a flatness multi-dimensional adjustment device, including a floating positioning mechanism, a three-axis displacement mechanism 4 connected to the floating positioning mechanism, and a gripper mechanism 5 connected to the floating positioning mechanism.

[0050] Specifically, the gripper mechanism 5 is located below the floating positioning mechanism and serves as a clamping device. The gripper mechanism 5 clamps and places materials to achieve partial assembly of the lidar. The three-axis displacement mechanism 4 is located above the floating positioning mechanism and serves as the main power mechanism for fine-tuning and positioning. It is driven by multiple internal cylinders to move the floating positioning mechanism in the x, y, and z directions to seek the optimal balance position and eliminate possible small errors accumulated during assembly. The floating positioning mechanism is the mechanism for realizing fine-tuning and positioning functions.

[0051] Reference Figure 4-5 As shown, the gripper mechanism 5 includes an extension block 51, a gripper opening and closing assembly 52, a leveling block 53, and a gripper 54; one end of the extension block 51 is connected to the pull plate 15, and the other end is connected to the gripper opening and closing assembly 52; the leveling block 53 is connected to the gripper opening and closing assembly 52; and the gripper 54 is connected to the gripper opening and closing assembly 52 in a driving connection.

[0052] Specifically, the connection between the extension block 51 and the floating positioning mechanism is preferably detachable, which facilitates quick replacement of extension blocks 51 of different lengths to meet different assembly requirements; the gripper opening and closing assembly 52 is preferably a cylinder-driven opening and closing assembly, which controls the opening and closing of the gripper 54 that is slidably connected or hinged to it by the extension and retraction of the cylinder. In a specific embodiment, the cylinder opening and closing assembly has two cylinders arranged in parallel to enhance the stability of the opening and closing process; the leveling block 53 is a limiting member, and its lower part is provided with a slot that has a positioning and limiting function to facilitate quick positioning of the material to be clamped.

[0053] Reference Figure 4-5 As shown, there are several leveling blocks 53 and they are located on the side of the gripper opening and closing assembly 52 away from the extension block 51. The leveling blocks 53 are provided with positioning grooves for the TX module 6. The gripper 54 moves with the gripper opening and closing assembly 52 to clamp the TX module 6.

[0054] Specifically, the leveling block 53 assists the gripper 54 in quickly clamping the TX module 6, improving the efficiency of the clamping process.

[0055] Reference Figure 4-5 As shown, a second connecting plate is also provided, which is connected to the triaxial displacement mechanism 4. The second connecting plate is provided with several general assembly positions.

[0056] Specifically, the second connecting plate is positioned above the three-axis displacement mechanism 4 and is used to connect to external equipment, enabling the flatness multi-dimensional adjustment device to move over a greater distance. Example 3

[0057] The present invention also provides a laser emitter and lens barrel assembly device, including a flatness multi-dimensional adjustment device.

[0058] Specifically, in the laser emitter and lens assembly equipment, a gantry crane controls the multi-dimensional flatness adjustment device to move between multiple workstations to achieve the assembly of the laser emitter and lens in the lidar.

[0059] The present invention discloses the working method and principle of a floating positioning mechanism, a multi-dimensional flatness adjustment device, and a laser emitter and lens barrel assembly equipment:

[0060] In this invention, in the initial state, the first drive device 21 of the unidirectional positioning mechanism 2 retracts, and the first floating head 22 moves away from the floating shaft assembly 14. In the bidirectional positioning mechanism 3, the second drive device 32 retracts, and the second floating head 33 moves away from the floating shaft assembly 14. The third drive device 35 extends, and the third floating head 36 moves away from the adjusting plate 37 and does not contact the pull plate 15 or the extension block 51. At this time, both the floating mechanism 1 and the gripper mechanism 5 are in a state where multi-directional displacement adjustment is possible. During the material handling process, the gantry crane drives the multi-dimensional flatness adjustment device to move... The device moves above the material handling position of TX module 6 and descends, with the leveling block 53 fitting and positioning against the upper surface of TX module 6. The gripper opening and closing assembly 52 drives the gripper 54 to close and grip TX module 6. Subsequently, the gantry crane moves the multi-dimensional flatness adjustment device above the lens barrel assembly station and descends until TX module 6 fits against the upper surface of the lens barrel. Then, the positioning process begins, with the first drive device 21 in the unidirectional positioning mechanism 2 and the second drive device 32 in the bidirectional positioning mechanism 3 extending, causing the first floating head 22 and the second floating head 33 to both engage with the floating head 54. The shaft assembly 14 abuts, fixing the position of the floating shaft assembly 14. The third drive device 35 in the bidirectional positioning mechanism 3 retracts, and the third floating head 36 abuts against the adjusting plate 37, fixing the position of the pull plate 15, thereby fixing the relative position of the TX module 6 held by the gripper assembly. Then, the fine adjustment process begins. The laser emitted by the TX module 6 is reflected by the lens barrel and received by the rear camera. After determining the assembly position of the TX module 6, the gantry moves the multi-dimensional flatness adjustment device vertically upward. The three-axis displacement mechanism 4 adjusts the position according to the camera's position. The receiver moves in the x, y, and z directions to compensate for the position of the TX module 6. Then, the gantry moves the multi-dimensional flatness adjustment device down to fit against the upper surface of the lens barrel. The laser emitted by the TX module 6 is reflected by the lens barrel and received by the rear camera, which again determines the assembly position of the TX module 6. If the final assembly requirements are not met, the previous step is repeated. Finally, the assembly process begins. The gantry moves the multi-dimensional flatness adjustment device to fit the TX module 6 against the lens barrel and fixes the TX module 6 with glue, completing the assembly.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A floating positioning mechanism, characterized in that, include: The floating mechanism (1) includes a mounting plate (11), a first connecting plate (12), a buffer assembly (13), a floating shaft assembly (14), and a pull plate (15); the first connecting plate (12) is connected to the mounting plate (11) through the buffer assembly (13); one end of the floating shaft assembly (14) is connected to the first connecting plate (12), and the other end is connected to the pull plate (15); A one-way positioning mechanism (2) includes a first driving device (21) and a first floating head (22) located at the output end of the first driving device (21). The first driving device (21) is connected to a first connecting plate (12), and the first floating head (22) acts on the floating shaft assembly (14) for positioning adjustment. The buffer assembly (13) includes a guide shaft (131), a linear bearing (132), and a through plate (133); one end of the guide shaft (131) is connected to the mounting plate (11), and the other end is connected to the through plate (133); the linear bearing (132) is coaxially sleeved outside the guide shaft (131), and the linear bearing (132) is connected to the first connecting plate (12); The floating shaft assembly (14) includes a first floating shaft (141), a second floating shaft (144), steel balls (143), and a coupling (142); the first floating shaft (141) and the second floating shaft (144) are connected by the coupling (142), the first floating shaft (141) is connected to a first connecting plate (12), and the second floating shaft (144) is connected to a pull plate (15); the steel balls (143) are disposed between the first floating shaft (141) and the second floating shaft (144); The floating mechanism (1) further includes a tension spring assembly (16), which includes a first tension spring support (161), a second tension spring support (162), and a tension spring (163); there are several first tension spring supports (161) and they are located on the first connecting plate (12) near the pull plate (15); there are several second tension spring supports (162) and they are located on the pull plate (15) near the first connecting plate (12), and the second tension spring supports (162) and the first tension spring supports (161) are arranged in a one-to-one correspondence; there are several tension springs (163), one end of which is connected to the first tension spring support (161), and the other end is connected to the second tension spring support (162).

2. The floating positioning mechanism according to claim 1, characterized in that: The buffer assembly (13) further includes a pressure sensor (134), a pad (135), and a compression spring (136); the mounting plate (11) has a first mounting groove on the side near the first connecting plate (12), and the pressure sensor (134) is located in the first mounting groove; the pad (135) is in clearance fit with the first mounting groove, and the pad (135) abuts against the pressure sensor (134); one end of the compression spring (136) is connected to the pad (135), and the other end is connected to the first connecting plate (12).

3. The floating positioning mechanism according to claim 1, characterized in that: A bidirectional positioning mechanism (3) is also provided, which is connected to the first connecting plate (12) and acts on the floating shaft assembly (14) and the pull plate (15) for positioning and adjustment; the bidirectional positioning mechanism (3) includes a second mounting plate (31), a second driving device (32), a second floating head (33), a third mounting plate (34), a third driving device (35), and a third floating head (36); the second mounting plate (31) is connected to the floating mechanism (1); the second driving device (32) is mounted on the second mounting plate (31), and the piston rod of the second driving device (32) is set towards the floating mechanism (1); the second floating head (33) is located at the extended end of the piston rod of the second driving device (32); the third mounting plate (34) is connected to the second mounting plate (31); the third driving device (35) is mounted on the third mounting plate (34), and the third floating head (36) is located at the extended end of the piston rod of the third driving device (35).

4. A floating positioning mechanism according to claim 3, characterized in that: The bidirectional positioning mechanism (3) also includes an adjustment plate (37) with a through hole. The adjustment plate (37) is connected to the pull plate (15) and bends away from the pull plate (15). The third floating head (36) passes through the through hole of the adjustment plate (37) and is connected to the third driving device (35).

5. A flatness multi-dimensional adjustment device, characterized in that: It includes a floating positioning mechanism as described in any one of claims 1-4, a three-axis displacement mechanism (4) connected to the floating positioning mechanism, and a gripper mechanism (5) connected to the floating positioning mechanism.

6. The flatness multi-dimensional adjustment device according to claim 5, characterized in that: The gripper mechanism (5) includes an extension block (51), a gripper opening and closing assembly (52), a leveling block (53), and a gripper (54); one end of the extension block (51) is connected to the pull plate (15), and the other end is connected to the gripper opening and closing assembly (52); the leveling block (53) is connected to the gripper opening and closing assembly (52); the gripper (54) is connected to the gripper opening and closing assembly (52) in a transmission connection.

7. A laser emitter and lens assembly device, characterized in that: Includes a flatness multi-dimensional adjustment device as described in any one of claims 5-6.

Images