Search

CN-117464335-B - Floating positioning mechanism, flatness multidimensional adjusting device and laser transmitter and lens barrel assembly equipment

CN117464335BCN 117464335 BCN117464335 BCN 117464335BCN-117464335-B

Abstract

The invention provides a floating positioning mechanism, a flatness multi-dimensional adjusting device and AA equipment, which comprise a floating mechanism, a unidirectional positioning mechanism and a positioning mechanism, wherein the floating mechanism comprises a mounting plate, a first connecting plate, a buffer assembly, a floating shaft assembly and a pulling plate, the first connecting plate is connected with the mounting plate through the buffer assembly, one end of the floating shaft assembly is connected with the first connecting plate, the other end of the floating shaft assembly is connected with the pulling plate, the unidirectional 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 multi-dimensional floating, adjusting and positioning device can realize multi-dimensional floating, adjusting and positioning in a tiny range, and is beneficial to ensuring high-precision assembly of a laser radar assembly, wherein the floating positioning mechanism can be finely adjusted and positioned so as to ensure the accuracy of the assembly position and angle of a TX module.

Inventors

  • HE HONGXIN
  • ZHAO FANG
  • WANG CHENG
  • CHENG XI
  • NIU CONG

Assignees

  • 苏州艾微视图像科技有限公司

Dates

Publication Date
20260508
Application Date
20231031

Claims (7)

  1. 1. A floating positioning mechanism, comprising: The floating mechanism (1) comprises a mounting plate (11), a first connecting plate (12), a buffer assembly (13), a floating shaft assembly (14) and a pull plate (15), wherein the first connecting plate (12) is connected with the mounting plate (11) through the buffer assembly (13), one end of the floating shaft assembly (14) is connected with the first connecting plate (12), and the other end of the floating shaft assembly is connected with the pull plate (15); The unidirectional positioning mechanism (2) comprises a first driving device (21) and a first floating head (22) arranged at the output end of the first driving device (21), wherein the first driving device (21) is connected with the first connecting plate (12), and the first floating head (22) acts on the floating shaft assembly (14) to position and adjust; The buffer assembly (13) comprises a guide shaft (131), a linear bearing (132) and a passing plate (133), wherein one end of the guide shaft (131) is connected with the mounting plate (11), and the other end of the guide shaft is connected with the passing plate (133), the linear bearing (132) is coaxially sleeved outside the guide shaft (131), and the linear bearing (132) is connected with the first connecting plate (12); The floating shaft assembly (14) comprises a first floating shaft (141), a second floating shaft (144), steel balls (143) and a coupler (142), wherein the first floating shaft (141) is connected with the second floating shaft (144) through the coupler (142), the first floating shaft (141) is connected with the first connecting plate (12), the second floating shaft (144) is connected with the pull plate (15), and the steel balls (143) are arranged between the first floating shaft (141) and the second floating shaft (144); The floating mechanism (1) further comprises a tension spring assembly (16) which comprises a first tension spring support column (161), a second tension spring support column (162) and tension springs (163), wherein the first tension spring support column (161) is provided with a plurality of tension springs, the tension springs are arranged on one side, close to the pull plate (15), of the first connecting plate (12), the second tension spring support column (162) is provided with a plurality of tension springs, the second tension spring support column (162) is arranged on one side, close to the first connecting plate (12), of the pull plate (15), the second tension spring support column (162) is arranged in one-to-one correspondence with the first tension spring support column (161), one end of each tension spring (163) is connected with the first tension spring support column (161), and the other end of each tension spring (163) is connected with the second tension spring support column (162).
  2. 2. The floating positioning mechanism according to claim 1, wherein the buffer assembly (13) further comprises a pressure sensor (134), a cushion block (135) and a pressure spring (136), a first mounting groove is formed in one side, close to the first connecting plate (12), of the mounting plate (11), the pressure sensor (134) is arranged in the first mounting groove, the cushion block (135) is in clearance fit with the first mounting groove, the cushion block (135) is abutted to the pressure sensor (134), one end of the pressure spring (136) is connected with the cushion block (135), and the other end of the pressure spring is connected with the first connecting plate (12).
  3. 3. A floating positioning mechanism according to claim 1, further comprising a bidirectional positioning mechanism (3) connected with the first connecting plate (12) and acting on the floating shaft assembly (14) and the pulling plate (15) for positioning adjustment, wherein the bidirectional positioning mechanism (3) comprises 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 with the floating mechanism (1), the second driving device (32) is arranged on the second mounting plate (31), a piston rod of the second driving device (32) is arranged towards the floating mechanism (1), the second floating head (33) is arranged at the extending end of the piston rod of the second driving device (32), the third mounting plate (34) is connected with the second mounting plate (31), the third driving device (35) is arranged on the third mounting plate (34), and the third floating head (36) is arranged at the extending end of the driving device (35).
  4. 4. A floating positioning mechanism according to claim 3, wherein the bi-directional positioning mechanism (3) further comprises an adjusting plate (37) provided with a through hole, the adjusting plate (37) is connected to the pulling plate (15) and is bent in a direction away from the pulling plate (15), and the third floating head (36) is connected to the third driving device (35) through the through hole of the adjusting plate (37).
  5. 5. A flatness multidimensional adjustment device is characterized by comprising a floating positioning mechanism, a triaxial displacement mechanism (4) connected with the floating positioning mechanism and a clamping jaw mechanism (5) connected with the floating positioning mechanism according to any one of claims 1-4.
  6. 6. The multi-dimensional flatness adjustment device according to claim 5, wherein the clamping jaw mechanism (5) comprises an extension block (51), a clamping jaw opening and closing assembly (52), a blocking flat block (53) and clamping jaws (54), one end of the extension block (51) is connected with the pull plate (15), the other end of the extension block is connected with the clamping jaw opening and closing assembly (52), the blocking flat block (53) is connected with the clamping jaw opening and closing assembly (52), and the clamping jaws (54) are in transmission connection with the clamping jaw opening and closing assembly (52).
  7. 7. A laser transmitter and lens barrel assembly apparatus comprising a flatness multi-dimensional adjusting device according to any one of claims 5 to 6.

Description

Floating positioning mechanism, flatness multidimensional adjusting device and laser transmitter and lens barrel assembly equipment Technical Field The invention relates to the technical field of laser radar assembly, in particular to a floating positioning mechanism, a flatness multi-dimensional adjusting device and laser transmitter and lens barrel assembly equipment. Background With the wide application of intelligent driving technology in the automotive field, the laser radar technology is rapidly becoming an important component in a vehicle sensing system. In modern multi-channel lidar systems, the co-operation of the laser transmitter, barrel and receiver is critical to ensure high accuracy and high stability of the system. The pulsed laser emitted by the laser transmitter must be precisely reflected to the receiver through the lens barrel so that accurate distance and environmental information can be obtained. Due to the wide range of applications of lidar in autopilot and environmental awareness, its high accuracy and stability requirements become particularly important. In the manufacturing process, how to realize the accurate alignment of the laser transmitter and the lens barrel and how to eliminate the tiny errors possibly accumulated in the assembly process, and ensuring the stability and consistency of output become the problems to be solved in the industry. Disclosure of Invention Therefore, the invention aims to solve the technical problem that the uniformity and reliability of the assembly relative positions of the laser transmitter and the lens barrel are required to be ensured in the prior art. In order to solve the above technical problems, the present invention provides a floating positioning mechanism, including: The floating mechanism comprises a mounting plate, a first connecting plate, a buffer assembly, a floating shaft assembly and a pull plate, wherein the first connecting plate is connected with the mounting plate through the buffer assembly; The unidirectional positioning mechanism comprises a first driving device and a first floating head arranged at the output end of the first driving device, wherein 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. In one embodiment of the invention, the buffer assembly comprises a guide shaft, a linear bearing and a passing plate, wherein one end of the guide shaft is connected with the mounting plate, the other end of the guide shaft is connected with the passing plate, the linear bearing is coaxially sleeved outside the guide shaft, and the linear bearing is connected with the first connecting plate. In one embodiment of the invention, the buffer assembly further comprises a pressure sensor, a cushion block and a pressure spring, wherein a first mounting groove is formed in one side, close to the first connecting plate, of the mounting plate, the pressure sensor is arranged in the first mounting groove, the cushion block is in clearance fit with the first mounting groove and is abutted to the pressure sensor, one end of the pressure spring is connected with the cushion block, and the other end of the pressure spring is connected with the first connecting plate. In one embodiment of the invention, the floating shaft assembly comprises a first floating shaft, a second floating shaft, steel balls and a coupler, wherein the first floating shaft is connected with the second floating shaft through the coupler, the first floating shaft is connected with a first connecting plate, the second floating shaft is connected with a pulling plate, and the steel balls are arranged between the first floating shaft and the second floating shaft. In one embodiment of the invention, the floating mechanism further comprises a tension spring assembly, wherein the tension spring assembly comprises a plurality of first tension spring struts, a plurality of second tension spring struts and tension springs, the first tension spring struts are arranged on one side, close to the pull plate, of the first connecting plate, the second tension spring struts are arranged on one side, close to the first connecting plate, of the pull plate, the second tension spring struts are arranged in a one-to-one correspondence manner with the first tension spring struts, one ends of the tension springs are connected with the first tension spring struts, and the other ends of the tension springs are connected with the second tension spring struts. In one embodiment of the invention, a bidirectional positioning mechanism is further arranged, is connected with the first connecting plate and acts on the floating shaft assembly and the pulling plate to position and adjust, and comprises 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, wherein the second mounting plate is connected with